below.
The block library can be found on GitHub:
- http://www.github.com/mikehollinger/ibmcapikv
+ http://github.com/open-power/capiflash
CXL Flash Driver IOCTLs
destroyed, the tokens are to be considered stale and subsequent
usage will result in errors.
+ - A valid adapter file descriptor (fd2 >= 0) is only returned on
+ the initial attach for a context. Subsequent attaches to an
+ existing context (DK_CXLFLASH_ATTACH_REUSE_CONTEXT flag present)
+ do not provide the adapter file descriptor as it was previously
+ made known to the application.
+
- When a context is no longer needed, the user shall detach from
- the context via the DK_CXLFLASH_DETACH ioctl.
+ the context via the DK_CXLFLASH_DETACH ioctl. When this ioctl
+ returns with a valid adapter file descriptor and the return flag
+ DK_CXLFLASH_APP_CLOSE_ADAP_FD is present, the application _must_
+ close the adapter file descriptor following a successful detach.
+
+ - When this ioctl returns with a valid fd2 and the return flag
+ DK_CXLFLASH_APP_CLOSE_ADAP_FD is present, the application _must_
+ close fd2 in the following circumstances:
+
+ + Following a successful detach of the last user of the context
+ + Following a successful recovery on the context's original fd2
+ + In the child process of a fork(), following a clone ioctl,
+ on the fd2 associated with the source context
- - A close on fd2 will invalidate the tokens. This operation is not
- required by the user.
+ - At any time, a close on fd2 will invalidate the tokens. Applications
+ should exercise caution to only close fd2 when appropriate (outlined
+ in the previous bullet) to avoid premature loss of I/O.
DK_CXLFLASH_USER_DIRECT
-----------------------
success, all "tokens" which had been provided to the user from the
DK_CXLFLASH_ATTACH onward are no longer valid.
+ When the DK_CXLFLASH_APP_CLOSE_ADAP_FD flag was returned on a successful
+ attach, the application _must_ close the fd2 associated with the context
+ following the detach of the final user of the context.
+
DK_CXLFLASH_VLUN_CLONE
----------------------
This ioctl is responsible for cloning a previously created
support maintaining user space access to storage after a process
forks. Upon success, the child process (which invoked the ioctl)
will have access to the same LUNs via the same resource handle(s)
- and fd2 as the parent, but under a different context.
+ as the parent, but under a different context.
Context sharing across processes is not supported with CXL and
therefore each fork must be met with establishing a new context
translation tables are copied from the parent context to the child's
and then synced with the AFU.
+ When the DK_CXLFLASH_APP_CLOSE_ADAP_FD flag was returned on a successful
+ attach, the application _must_ close the fd2 associated with the source
+ context (still resident/accessible in the parent process) following the
+ clone. This is to avoid a stale entry in the file descriptor table of the
+ child process.
+
DK_CXLFLASH_VERIFY
------------------
This ioctl is used to detect various changes such as the capacity of
at which time the context/resources they held will be freed as part of
the release fop.
+ When the DK_CXLFLASH_APP_CLOSE_ADAP_FD flag was returned on a successful
+ attach, the application _must_ unmap and close the fd2 associated with the
+ original context following this ioctl returning success and indicating that
+ the context was recovered (DK_CXLFLASH_RECOVER_AFU_CONTEXT_RESET).
+
DK_CXLFLASH_MANAGE_LUN
----------------------
This ioctl is used to switch a LUN from a mode where it is available
- HP Smart Array Controller SCSI driver.
hptiop.txt
- HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
-in2000.txt
- - info on in2000 driver
libsas.txt
- Serial Attached SCSI management layer.
link_power_management_policy.txt
+++ /dev/null
-README file for the Linux DTC3180/3280 scsi driver.
-by Ray Van Tassle (rayvt@comm.mot.com) March 1996
-Based on the generic & core NCR5380 code by Drew Eckhard
-
-SCSI device driver for the DTC 3180/3280.
-Data Technology Corp---a division of Qume.
-
-The 3280 has a standard floppy interface.
-
-The 3180 does not. Otherwise, they are identical.
-
-The DTC3x80 does not support DMA but it does have Pseudo-DMA which is
-supported by the driver.
-
-Its DTC406 scsi chip is supposedly compatible with the NCR 53C400.
-It is memory mapped, uses an IRQ, but no dma or io-port. There is
-internal DMA, between SCSI bus and an on-chip 128-byte buffer. Double
-buffering is done automagically by the chip. Data is transferred
-between the on-chip buffer and CPU/RAM via memory moves.
-
-The driver detects the possible memory addresses (jumper selectable):
- CC00, DC00, C800, and D800
-The possible IRQ's (jumper selectable) are:
- IRQ 10, 11, 12, 15
-Parity is supported by the chip, but not by this driver.
-Information can be obtained from /proc/scsi/dtc3c80/N.
-
-Note on interrupts:
-
-The documentation says that it can be set to interrupt whenever the
-on-chip buffer needs CPU attention. I couldn't get this to work. So
-the driver polls for data-ready in the pseudo-DMA transfer routine.
-The interrupt support routines in the NCR3280.c core modules handle
-scsi disconnect/reconnect, and this (mostly) works. However..... I
-have tested it with 4 totally different hard drives (both SCSI-1 and
-SCSI-2), and one CDROM drive. Interrupts works great for all but one
-specific hard drive. For this one, the driver will eventually hang in
-the transfer state. I have tested with: "dd bs=4k count=2k
-of=/dev/null if=/dev/sdb". It reads ok for a while, then hangs.
-After beating my head against this for a couple of weeks, getting
-nowhere, I give up. So.....This driver does NOT use interrupts, even
-if you have the card jumpered to an IRQ. Probably nobody will ever
-care.
+++ /dev/null
-
-UPDATE NEWS: version 1.33 - 26 Aug 98
-
- Interrupt management in this driver has become, over
- time, increasingly odd and difficult to explain - this
- has been mostly due to my own mental inadequacies. In
- recent kernels, it has failed to function at all when
- compiled for SMP. I've fixed that problem, and after
- taking a fresh look at interrupts in general, greatly
- reduced the number of places where they're fiddled
- with. Done some heavy testing and it looks very good.
- The driver now makes use of the __initfunc() and
- __initdata macros to save about 4k of kernel memory.
- Once again, the same code works for both 2.0.xx and
- 2.1.xx kernels.
-
-UPDATE NEWS: version 1.32 - 28 Mar 98
-
- Removed the check for legal IN2000 hardware versions:
- It appears that the driver works fine with serial
- EPROMs (the 8-pin chip that defines hardware rev) as
- old as 2.1, so we'll assume that all cards are OK.
-
-UPDATE NEWS: version 1.31 - 6 Jul 97
-
- Fixed a bug that caused incorrect SCSI status bytes to be
- returned from commands sent to LUNs greater than 0. This
- means that CDROM changers work now! Fixed a bug in the
- handling of command-line arguments when loaded as a module.
- Also put all the header data in in2000.h where it belongs.
- There are no longer any differences between this driver in
- the 2.1.xx source tree and the 2.0.xx tree, as of 2.0.31
- and 2.1.45 (or is it .46?) - this makes things much easier
- for me...
-
-UPDATE NEWS: version 1.30 - 14 Oct 96
-
- Fixed a bug in the code that sets the transfer direction
- bit (DESTID_DPD in the WD_DESTINATION_ID register). There
- are quite a few SCSI commands that do a write-to-device;
- now we deal with all of them correctly. Thanks to Joerg
- Dorchain for catching this one.
-
-UPDATE NEWS: version 1.29 - 24 Sep 96
-
- The memory-mapped hardware on the card is now accessed via
- the 'readb()' and 'readl()' macros - required by the new
- memory management scheme in the 2.1.x kernel series.
- As suggested by Andries Brouwer, 'bios_param()' no longer
- forces an artificial 1023 track limit on drives. Also
- removed some kludge-code left over from struggles with
- older (buggy) compilers.
-
-UPDATE NEWS: version 1.28 - 07 May 96
-
- Tightened up the "interrupts enabled/disabled" discipline
- in 'in2000_queuecommand()' and maybe 1 or 2 other places.
- I _think_ it may have been a little too lax, causing an
- occasional crash during full moon. A fully functional
- /proc interface is now in place - if you want to play
- with it, start by doing 'cat /proc/scsi/in2000/0'. You
- can also use it to change a few run-time parameters on
- the fly, but it's mostly for debugging. The curious
- should take a good look at 'in2000_proc_info()' in the
- in2000.c file to get an understanding of what it's all
- about; I figure that people who are really into it will
- want to add features suited to their own needs...
- Also, sync is now DISABLED by default.
-
-UPDATE NEWS: version 1.27 - 10 Apr 96
-
- Fixed a well-hidden bug in the adaptive-disconnect code
- that would show up every now and then during extreme
- heavy loads involving 2 or more simultaneously active
- devices. Thanks to Joe Mack for keeping my nose to the
- grindstone on this one.
-
-UPDATE NEWS: version 1.26 - 07 Mar 96
-
- 1.25 had a nasty bug that bit people with swap partitions
- and tape drives. Also, in my attempt to guess my way
- through Intel assembly language, I made an error in the
- inline code for IO writes. Made a few other changes and
- repairs - this version (fingers crossed) should work well.
-
-UPDATE NEWS: version 1.25 - 05 Mar 96
-
- Kernel 1.3.70 interrupt mods added; old kernels still OK.
- Big help from Bill Earnest and David Willmore on speed
- testing and optimizing: I think there's a real improvement
- in this area.
- New! User-friendly command-line interface for LILO and
- module loading - the old method is gone, so you'll need
- to read the comments for 'setup_strings' near the top
- of in2000.c. For people with CDROM's or other devices
- that have a tough time with sync negotiation, you can
- now selectively disable sync on individual devices -
- search for the 'nosync' keyword in the command-line
- comments. Some of you disable the BIOS on the card, which
- caused the auto-detect function to fail; there is now a
- command-line option to force detection of a ROM-less card.
-
-UPDATE NEWS: version 1.24a - 24 Feb 96
-
- There was a bug in the synchronous transfer code. Only
- a few people downloaded before I caught it - could have
- been worse.
-
-UPDATE NEWS: version 1.24 - 23 Feb 96
-
- Lots of good changes. Advice from Bill Earnest resulted
- in much better detection of cards, more efficient usage
- of the fifo, and (hopefully) faster data transfers. The
- jury is still out on speed - I hope it's improved some.
- One nifty new feature is a cool way of doing disconnect/
- reselect. The driver defaults to what I'm calling
- 'adaptive disconnect' - meaning that each command is
- evaluated individually as to whether or not it should be
- run with the option to disconnect/reselect (if the device
- chooses), or as a "SCSI-bus-hog". When several devices
- are operating simultaneously, disconnects are usually an
- advantage. In a single device system, or if only 1 device
- is being accessed, transfers usually go faster if disconnects
- are not allowed.
-
-
-
-The default arguments (you get these when you don't give an 'in2000'
-command-line argument, or you give a blank argument) will cause
-the driver to do adaptive disconnect, synchronous transfers, and a
-minimum of debug messages. If you want to fool with the options,
-search for 'setup_strings' near the top of the in2000.c file and
-check the 'hostdata->args' section in in2000.h - but be warned! Not
-everything is working yet (some things will never work, probably).
-I believe that disabling disconnects (DIS_NEVER) will allow you
-to choose a LEVEL2 value higher than 'L2_BASIC', but I haven't
-spent a lot of time testing this. You might try 'ENABLE_CLUSTERING'
-to see what happens: my tests showed little difference either way.
-There's also a define called 'DEFAULT_SX_PER'; this sets the data
-transfer speed for the asynchronous mode. I've put it at 500 ns
-despite the fact that the card could handle settings of 376 or
-252, because higher speeds may be a problem with poor quality
-cables or improper termination; 500 ns is a compromise. You can
-choose your own default through the command-line with the
-'period' keyword.
-
-
-------------------------------------------------
-*********** DIP switch settings **************
-------------------------------------------------
-
- sw1-1 sw1-2 BIOS address (hex)
- -----------------------------------------
- off off C8000 - CBFF0
- on off D8000 - DBFF0
- off on D0000 - D3FF0
- on on BIOS disabled
-
- sw1-3 sw1-4 IO port address (hex)
- ------------------------------------
- off off 220 - 22F
- on off 200 - 20F
- off on 110 - 11F
- on on 100 - 10F
-
- sw1-5 sw1-6 sw1-7 Interrupt
- ------------------------------
- off off off 15
- off on off 14
- off off on 11
- off on on 10
- on - - disabled
-
- sw1-8 function depends on BIOS version. In earlier versions this
- controlled synchronous data transfer support for MSDOS:
- off = disabled
- on = enabled
- In later ROMs (starting with 01.3 in April 1994) sw1-8 controls
- the "greater than 2 disk drive" feature that first appeared in
- MSDOS 5.0 (ignored by Linux):
- off = 2 drives maximum
- on = 7 drives maximum
-
- sw1-9 Floppy controller
- --------------------------
- off disabled
- on enabled
-
-------------------------------------------------
-
- I should mention that Drew Eckhardt's 'Generic NCR5380' sources
- were my main inspiration, with lots of reference to the IN2000
- driver currently distributed in the kernel source. I also owe
- much to a driver written by Hamish Macdonald for Linux-m68k(!).
- And to Eric Wright for being an ALPHA guinea pig. And to Bill
- Earnest for 2 tons of great input and information. And to David
- Willmore for extensive 'bonnie' testing. And to Joe Mack for
- continual testing and feedback.
-
-
- John Shifflett jshiffle@netcom.com
-
See drivers/scsi/BusLogic.c, comment before function
BusLogic_ParseDriverOptions().
- dtc3181e= [HW,SCSI]
- See Documentation/scsi/g_NCR5380.txt.
-
eata= [HW,SCSI]
fdomain= [HW,SCSI]
gvp11= [HW,SCSI]
- in2000= [HW,SCSI]
- See header of drivers/scsi/in2000.c.
-
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
See header of drivers/scsi/ips.c.
Format: <buffer_size>,<write_threshold>
See also Documentation/scsi/st.txt.
- pas16= [HW,SCSI]
- See header of drivers/scsi/pas16.c.
-
scsi_debug_*= [SCSI]
See drivers/scsi/scsi_debug.c.
sym53c416= [HW,SCSI]
See header of drivers/scsi/sym53c416.c.
- t128= [HW,SCSI]
- See header of drivers/scsi/t128.c.
-
tmscsim= [HW,SCSI]
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
- u14-34f= [HW,SCSI] UltraStor 14F/34F SCSI host adapter
- See header of drivers/scsi/u14-34f.c.
-
wd33c93= [HW,SCSI]
See header of drivers/scsi/wd33c93.c.
-
- wd7000= [HW,SCSI]
- See header of drivers/scsi/wd7000.c.
--- /dev/null
+
+SMARTPQI - Microsemi Smart PQI Driver
+-----------------------------------------
+
+This file describes the smartpqi SCSI driver for Microsemi
+(http://www.microsemi.com) PQI controllers. The smartpqi driver
+is the next generation SCSI driver for Microsemi Corp. The smartpqi
+driver is the first SCSI driver to implement the PQI queuing model.
+
+The smartpqi driver will replace the aacraid driver for Adaptec Series 9
+controllers. Customers running an older kernel (Pre-4.9) using an Adaptec
+Series 9 controller will have to configure the smartpqi driver or their
+volumes will not be added to the OS.
+
+For Microsemi smartpqi controller support, enable the smartpqi driver
+when configuring the kernel.
+
+For more information on the PQI Queuing Interface, please see:
+http://www.t10.org/drafts.htm
+http://www.t10.org/members/w_pqi2.htm
+
+Supported devices:
+------------------
+<Controller names to be added as they become publically available.>
+
+smartpqi specific entries in /sys
+-----------------------------
+
+ smartpqi host attributes:
+ -------------------------
+ /sys/class/scsi_host/host*/rescan
+ /sys/class/scsi_host/host*/version
+
+ The host rescan attribute is a write only attribute. Writing to this
+ attribute will trigger the driver to scan for new, changed, or removed
+ devices and notify the SCSI mid-layer of any changes detected.
+
+ The version attribute is read-only and will return the driver version
+ and the controller firmware version.
+ For example:
+ driver: 0.9.13-370
+ firmware: 0.01-522
+
+ smartpqi sas device attributes
+ ------------------------------
+ HBA devices are added to the SAS transport layer. These attributes are
+ automatically added by the SAS transport layer.
+
+ /sys/class/sas_device/end_device-X:X/sas_address
+ /sys/class/sas_device/end_device-X:X/enclosure_identifier
+ /sys/class/sas_device/end_device-X:X/scsi_target_id
+
+smartpqi specific ioctls:
+-------------------------
+
+ For compatibility with applications written for the cciss protocol.
+
+ CCISS_DEREGDISK
+ CCISS_REGNEWDISK
+ CCISS_REGNEWD
+
+ The above three ioctls all do exactly the same thing, which is to cause the driver
+ to rescan for new devices. This does exactly the same thing as writing to the
+ smartpqi specific host "rescan" attribute.
+
+ CCISS_GETPCIINFO
+
+ Returns PCI domain, bus, device and function and "board ID" (PCI subsystem ID).
+
+ CCISS_GETDRIVVER
+
+ Returns driver version in three bytes encoded as:
+ (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | (DRIVER_RELEASE << 16) | DRIVER_REVISION;
+
+ CCISS_PASSTHRU
+
+ Allows "BMIC" and "CISS" commands to be passed through to the Smart Storage Array.
+ These are used extensively by the SSA Array Configuration Utility, SNMP storage
+ agents, etc.
+
S: Supported
F: drivers/iio/temperature/mlx90614.c
+MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)
+M: Don Brace <don.brace@microsemi.com>
+L: esc.storagedev@microsemi.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/smartpqi/smartpqi*.[ch]
+F: drivers/scsi/smartpqi/Kconfig
+F: drivers/scsi/smartpqi/Makefile
+F: include/linux/cciss*.h
+F: include/uapi/linux/cciss*.h
+F: Documentation/scsi/smartpqi.txt
+
MN88472 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
L: linux-scsi@vger.kernel.org
S: Maintained
F: Documentation/scsi/g_NCR5380.txt
-F: Documentation/scsi/dtc3x80.txt
F: drivers/scsi/NCR5380.*
F: drivers/scsi/arm/cumana_1.c
F: drivers/scsi/arm/oak.c
F: drivers/scsi/atari_scsi.*
F: drivers/scsi/dmx3191d.c
-F: drivers/scsi/dtc.*
F: drivers/scsi/g_NCR5380.*
F: drivers/scsi/g_NCR5380_mmio.c
F: drivers/scsi/mac_scsi.*
-F: drivers/scsi/pas16.*
F: drivers/scsi/sun3_scsi.*
F: drivers/scsi/sun3_scsi_vme.c
-F: drivers/scsi/t128.*
NCR DUAL 700 SCSI DRIVER (MICROCHANNEL)
M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
F: drivers/misc/phantom.c
F: include/uapi/linux/phantom.h
-SERVER ENGINES 10Gbps iSCSI - BladeEngine 2 DRIVER
-M: Jayamohan Kallickal <jayamohan.kallickal@avagotech.com>
-M: Ketan Mukadam <ketan.mukadam@avagotech.com>
-M: John Soni Jose <sony.john@avagotech.com>
+Emulex 10Gbps iSCSI - OneConnect DRIVER
+M: Subbu Seetharaman <subbu.seetharaman@broadcom.com>
+M: Ketan Mukadam <ketan.mukadam@broadcom.com>
+M: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
L: linux-scsi@vger.kernel.org
-W: http://www.avagotech.com
+W: http://www.broadcom.com
S: Supported
F: drivers/scsi/be2iscsi/
F: drivers/tc/
F: include/linux/tc.h
-U14-34F SCSI DRIVER
-M: Dario Ballabio <ballabio_dario@emc.com>
-L: linux-scsi@vger.kernel.org
-S: Maintained
-F: drivers/scsi/u14-34f.c
-
UBI FILE SYSTEM (UBIFS)
M: Richard Weinberger <richard@nod.at>
M: Artem Bityutskiy <dedekind1@gmail.com>
F: include/linux/watchdog.h
F: include/uapi/linux/watchdog.h
-WD7000 SCSI DRIVER
-M: Miroslav Zagorac <zaga@fly.cc.fer.hr>
-L: linux-scsi@vger.kernel.org
-S: Maintained
-F: drivers/scsi/wd7000.c
-
WIIMOTE HID DRIVER
M: David Herrmann <dh.herrmann@googlemail.com>
L: linux-input@vger.kernel.org
snprintf(ioc->reset_work_q_name, MPT_KOBJ_NAME_LEN,
"mpt_poll_%d", ioc->id);
- ioc->reset_work_q =
- create_singlethread_workqueue(ioc->reset_work_q_name);
+ ioc->reset_work_q = alloc_workqueue(ioc->reset_work_q_name,
+ WQ_MEM_RECLAIM, 0);
if (!ioc->reset_work_q) {
printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n",
ioc->name);
INIT_LIST_HEAD(&ioc->fw_event_list);
spin_lock_init(&ioc->fw_event_lock);
snprintf(ioc->fw_event_q_name, MPT_KOBJ_NAME_LEN, "mpt/%d", ioc->id);
- ioc->fw_event_q = create_singlethread_workqueue(ioc->fw_event_q_name);
+ ioc->fw_event_q = alloc_workqueue(ioc->fw_event_q_name,
+ WQ_MEM_RECLAIM, 0);
if (!ioc->fw_event_q) {
printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n",
ioc->name);
snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
"mptfc_wq_%d", sh->host_no);
ioc->fc_rescan_work_q =
- create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
- if (!ioc->fc_rescan_work_q)
+ alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
+ WQ_MEM_RECLAIM);
+ if (!ioc->fc_rescan_work_q) {
+ error = -ENOMEM;
goto out_mptfc_probe;
+ }
/*
* Pre-fetch FC port WWN and stuff...
*
* Debug traces for zfcp.
*
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2016
*/
#define KMSG_COMPONENT "zfcp"
* @tag: tag indicating which kind of unsolicited status has been received
* @req: request for which a response was received
*/
-void zfcp_dbf_hba_fsf_res(char *tag, struct zfcp_fsf_req *req)
+void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
{
struct zfcp_dbf *dbf = req->adapter->dbf;
struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
rec->u.res.req_issued = req->issued;
rec->u.res.prot_status = q_pref->prot_status;
rec->u.res.fsf_status = q_head->fsf_status;
+ rec->u.res.port_handle = q_head->port_handle;
+ rec->u.res.lun_handle = q_head->lun_handle;
memcpy(rec->u.res.prot_status_qual, &q_pref->prot_status_qual,
FSF_PROT_STATUS_QUAL_SIZE);
rec->pl_len, "fsf_res", req->req_id);
}
- debug_event(dbf->hba, 1, rec, sizeof(*rec));
+ debug_event(dbf->hba, level, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->hba_lock, flags);
}
if (sdev) {
rec->lun_status = atomic_read(&sdev_to_zfcp(sdev)->status);
rec->lun = zfcp_scsi_dev_lun(sdev);
- }
+ } else
+ rec->lun = ZFCP_DBF_INVALID_LUN;
}
/**
spin_unlock_irqrestore(&dbf->rec_lock, flags);
}
+/**
+ * zfcp_dbf_rec_run_wka - trace wka port event with info like running recovery
+ * @tag: identifier for event
+ * @wka_port: well known address port
+ * @req_id: request ID to correlate with potential HBA trace record
+ */
+void zfcp_dbf_rec_run_wka(char *tag, struct zfcp_fc_wka_port *wka_port,
+ u64 req_id)
+{
+ struct zfcp_dbf *dbf = wka_port->adapter->dbf;
+ struct zfcp_dbf_rec *rec = &dbf->rec_buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dbf->rec_lock, flags);
+ memset(rec, 0, sizeof(*rec));
+
+ rec->id = ZFCP_DBF_REC_RUN;
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->port_status = wka_port->status;
+ rec->d_id = wka_port->d_id;
+ rec->lun = ZFCP_DBF_INVALID_LUN;
+
+ rec->u.run.fsf_req_id = req_id;
+ rec->u.run.rec_status = ~0;
+ rec->u.run.rec_step = ~0;
+ rec->u.run.rec_action = ~0;
+ rec->u.run.rec_count = ~0;
+
+ debug_event(dbf->rec, 1, rec, sizeof(*rec));
+ spin_unlock_irqrestore(&dbf->rec_lock, flags);
+}
+
static inline
-void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, void *data, u8 id, u16 len,
- u64 req_id, u32 d_id)
+void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf,
+ char *paytag, struct scatterlist *sg, u8 id, u16 len,
+ u64 req_id, u32 d_id, u16 cap_len)
{
struct zfcp_dbf_san *rec = &dbf->san_buf;
u16 rec_len;
unsigned long flags;
+ struct zfcp_dbf_pay *payload = &dbf->pay_buf;
+ u16 pay_sum = 0;
spin_lock_irqsave(&dbf->san_lock, flags);
memset(rec, 0, sizeof(*rec));
rec->id = id;
rec->fsf_req_id = req_id;
rec->d_id = d_id;
- rec_len = min(len, (u16)ZFCP_DBF_SAN_MAX_PAYLOAD);
- memcpy(rec->payload, data, rec_len);
memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->pl_len = len; /* full length even if we cap pay below */
+ if (!sg)
+ goto out;
+ rec_len = min_t(unsigned int, sg->length, ZFCP_DBF_SAN_MAX_PAYLOAD);
+ memcpy(rec->payload, sg_virt(sg), rec_len); /* part of 1st sg entry */
+ if (len <= rec_len)
+ goto out; /* skip pay record if full content in rec->payload */
+
+ /* if (len > rec_len):
+ * dump data up to cap_len ignoring small duplicate in rec->payload
+ */
+ spin_lock_irqsave(&dbf->pay_lock, flags);
+ memset(payload, 0, sizeof(*payload));
+ memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN);
+ payload->fsf_req_id = req_id;
+ payload->counter = 0;
+ for (; sg && pay_sum < cap_len; sg = sg_next(sg)) {
+ u16 pay_len, offset = 0;
+
+ while (offset < sg->length && pay_sum < cap_len) {
+ pay_len = min((u16)ZFCP_DBF_PAY_MAX_REC,
+ (u16)(sg->length - offset));
+ /* cap_len <= pay_sum < cap_len+ZFCP_DBF_PAY_MAX_REC */
+ memcpy(payload->data, sg_virt(sg) + offset, pay_len);
+ debug_event(dbf->pay, 1, payload,
+ zfcp_dbf_plen(pay_len));
+ payload->counter++;
+ offset += pay_len;
+ pay_sum += pay_len;
+ }
+ }
+ spin_unlock(&dbf->pay_lock);
+out:
debug_event(dbf->san, 1, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->san_lock, flags);
}
struct zfcp_fsf_ct_els *ct_els = fsf->data;
u16 length;
- length = (u16)(ct_els->req->length + FC_CT_HDR_LEN);
- zfcp_dbf_san(tag, dbf, sg_virt(ct_els->req), ZFCP_DBF_SAN_REQ, length,
- fsf->req_id, d_id);
+ length = (u16)zfcp_qdio_real_bytes(ct_els->req);
+ zfcp_dbf_san(tag, dbf, "san_req", ct_els->req, ZFCP_DBF_SAN_REQ,
+ length, fsf->req_id, d_id, length);
+}
+
+static u16 zfcp_dbf_san_res_cap_len_if_gpn_ft(char *tag,
+ struct zfcp_fsf_req *fsf,
+ u16 len)
+{
+ struct zfcp_fsf_ct_els *ct_els = fsf->data;
+ struct fc_ct_hdr *reqh = sg_virt(ct_els->req);
+ struct fc_ns_gid_ft *reqn = (struct fc_ns_gid_ft *)(reqh + 1);
+ struct scatterlist *resp_entry = ct_els->resp;
+ struct fc_gpn_ft_resp *acc;
+ int max_entries, x, last = 0;
+
+ if (!(memcmp(tag, "fsscth2", 7) == 0
+ && ct_els->d_id == FC_FID_DIR_SERV
+ && reqh->ct_rev == FC_CT_REV
+ && reqh->ct_in_id[0] == 0
+ && reqh->ct_in_id[1] == 0
+ && reqh->ct_in_id[2] == 0
+ && reqh->ct_fs_type == FC_FST_DIR
+ && reqh->ct_fs_subtype == FC_NS_SUBTYPE
+ && reqh->ct_options == 0
+ && reqh->_ct_resvd1 == 0
+ && reqh->ct_cmd == FC_NS_GPN_FT
+ /* reqh->ct_mr_size can vary so do not match but read below */
+ && reqh->_ct_resvd2 == 0
+ && reqh->ct_reason == 0
+ && reqh->ct_explan == 0
+ && reqh->ct_vendor == 0
+ && reqn->fn_resvd == 0
+ && reqn->fn_domain_id_scope == 0
+ && reqn->fn_area_id_scope == 0
+ && reqn->fn_fc4_type == FC_TYPE_FCP))
+ return len; /* not GPN_FT response so do not cap */
+
+ acc = sg_virt(resp_entry);
+ max_entries = (reqh->ct_mr_size * 4 / sizeof(struct fc_gpn_ft_resp))
+ + 1 /* zfcp_fc_scan_ports: bytes correct, entries off-by-one
+ * to account for header as 1st pseudo "entry" */;
+
+ /* the basic CT_IU preamble is the same size as one entry in the GPN_FT
+ * response, allowing us to skip special handling for it - just skip it
+ */
+ for (x = 1; x < max_entries && !last; x++) {
+ if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
+ acc++;
+ else
+ acc = sg_virt(++resp_entry);
+
+ last = acc->fp_flags & FC_NS_FID_LAST;
+ }
+ len = min(len, (u16)(x * sizeof(struct fc_gpn_ft_resp)));
+ return len; /* cap after last entry */
}
/**
struct zfcp_fsf_ct_els *ct_els = fsf->data;
u16 length;
- length = (u16)(ct_els->resp->length + FC_CT_HDR_LEN);
- zfcp_dbf_san(tag, dbf, sg_virt(ct_els->resp), ZFCP_DBF_SAN_RES, length,
- fsf->req_id, 0);
+ length = (u16)zfcp_qdio_real_bytes(ct_els->resp);
+ zfcp_dbf_san(tag, dbf, "san_res", ct_els->resp, ZFCP_DBF_SAN_RES,
+ length, fsf->req_id, ct_els->d_id,
+ zfcp_dbf_san_res_cap_len_if_gpn_ft(tag, fsf, length));
}
/**
struct fsf_status_read_buffer *srb =
(struct fsf_status_read_buffer *) fsf->data;
u16 length;
+ struct scatterlist sg;
length = (u16)(srb->length -
offsetof(struct fsf_status_read_buffer, payload));
- zfcp_dbf_san(tag, dbf, srb->payload.data, ZFCP_DBF_SAN_ELS, length,
- fsf->req_id, ntoh24(srb->d_id));
+ sg_init_one(&sg, srb->payload.data, length);
+ zfcp_dbf_san(tag, dbf, "san_els", &sg, ZFCP_DBF_SAN_ELS, length,
+ fsf->req_id, ntoh24(srb->d_id), length);
}
/**
* @sc: pointer to struct scsi_cmnd
* @fsf: pointer to struct zfcp_fsf_req
*/
-void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
+void zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *sc,
+ struct zfcp_fsf_req *fsf)
{
struct zfcp_adapter *adapter =
(struct zfcp_adapter *) sc->device->host->hostdata[0];
}
}
- debug_event(dbf->scsi, 1, rec, sizeof(*rec));
+ debug_event(dbf->scsi, level, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->scsi_lock, flags);
}
* zfcp device driver
* debug feature declarations
*
- * Copyright IBM Corp. 2008, 2010
+ * Copyright IBM Corp. 2008, 2015
*/
#ifndef ZFCP_DBF_H
#define ZFCP_DBF_INVALID_LUN 0xFFFFFFFFFFFFFFFFull
+enum zfcp_dbf_pseudo_erp_act_type {
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD = 0xff,
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL = 0xfe,
+};
+
/**
* struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
* @ready: number of ready recovery actions
u32 d_id;
#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
+ u16 pl_len;
} __packed;
/**
u8 prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
u32 fsf_status;
u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
+ u32 port_handle;
+ u32 lun_handle;
} __packed;
/**
void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
{
if (debug_level_enabled(req->adapter->dbf->hba, level))
- zfcp_dbf_hba_fsf_res(tag, req);
+ zfcp_dbf_hba_fsf_res(tag, level, req);
}
/**
scmd->device->host->hostdata[0];
if (debug_level_enabled(adapter->dbf->scsi, level))
- zfcp_dbf_scsi(tag, scmd, req);
+ zfcp_dbf_scsi(tag, level, scmd, req);
}
/**
*
* Error Recovery Procedures (ERP).
*
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2015
*/
#define KMSG_COMPONENT "zfcp"
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
- if (result == ZFCP_ERP_SUCCEEDED)
- zfcp_scsi_schedule_rport_register(port);
+ /* This switch case might also happen after a forced reopen
+ * was successfully done and thus overwritten with a new
+ * non-forced reopen at `ersfs_2'. In this case, we must not
+ * do the clean-up of the non-forced version.
+ */
+ if (act->step != ZFCP_ERP_STEP_UNINITIALIZED)
+ if (result == ZFCP_ERP_SUCCEEDED)
+ zfcp_scsi_schedule_rport_register(port);
/* fall through */
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
put_device(&port->dev);
*
* External function declarations.
*
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2015
*/
#ifndef ZFCP_EXT_H
extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
struct zfcp_port *, struct scsi_device *, u8, u8);
extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
+extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64);
extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_hba_fsf_res(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_scsi(char *, struct scsi_cmnd *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_scsi(char *, int, struct scsi_cmnd *,
+ struct zfcp_fsf_req *);
/* zfcp_erp.c */
extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
*
* Implementation of FSF commands.
*
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2015
*/
#define KMSG_COMPONENT "zfcp"
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
break;
case FSF_TOPO_FABRIC:
- fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
+ if (bottom->connection_features & FSF_FEATURE_NPIV_MODE)
+ fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
+ else
+ fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
break;
case FSF_TOPO_AL:
fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) {
fc_host_permanent_port_name(shost) = bottom->wwpn;
- fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
} else
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
if (zfcp_adapter_multi_buffer_active(adapter)) {
if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req))
return -EIO;
+ qtcb->bottom.support.req_buf_length =
+ zfcp_qdio_real_bytes(sg_req);
if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp))
return -EIO;
+ qtcb->bottom.support.resp_buf_length =
+ zfcp_qdio_real_bytes(sg_resp);
zfcp_qdio_set_data_div(qdio, &req->qdio_req,
zfcp_qdio_sbale_count(sg_req));
req->handler = zfcp_fsf_send_ct_handler;
req->qtcb->header.port_handle = wka_port->handle;
+ ct->d_id = wka_port->d_id;
req->data = ct;
zfcp_dbf_san_req("fssct_1", req, wka_port->d_id);
hton24(req->qtcb->bottom.support.d_id, d_id);
req->handler = zfcp_fsf_send_els_handler;
+ els->d_id = d_id;
req->data = els;
zfcp_dbf_san_req("fssels1", req, d_id);
int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
{
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
- struct zfcp_fsf_req *req;
+ struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
spin_lock_irq(&qdio->req_q_lock);
zfcp_fsf_req_free(req);
out:
spin_unlock_irq(&qdio->req_q_lock);
+ if (req && !IS_ERR(req))
+ zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req->req_id);
return retval;
}
int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
{
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
- struct zfcp_fsf_req *req;
+ struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
spin_lock_irq(&qdio->req_q_lock);
zfcp_fsf_req_free(req);
out:
spin_unlock_irq(&qdio->req_q_lock);
+ if (req && !IS_ERR(req))
+ zfcp_dbf_rec_run_wka("fscwp_1", wka_port, req->req_id);
return retval;
}
*
* Interface to the FSF support functions.
*
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2015
*/
#ifndef FSF_H
* @handler_data: data passed to handler function
* @port: Optional pointer to port for zfcp internal ELS (only test link ADISC)
* @status: used to pass error status to calling function
+ * @d_id: Destination ID of either open WKA port for CT or of D_ID for ELS
*/
struct zfcp_fsf_ct_els {
struct scatterlist *req;
void *handler_data;
struct zfcp_port *port;
int status;
+ u32 d_id;
};
#endif /* FSF_H */
*
* Interface to Linux SCSI midlayer.
*
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2015
*/
#define KMSG_COMPONENT "zfcp"
ids.port_id = port->d_id;
ids.roles = FC_RPORT_ROLE_FCP_TARGET;
+ zfcp_dbf_rec_trig("scpaddy", port->adapter, port, NULL,
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD,
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD);
rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids);
if (!rport) {
dev_err(&port->adapter->ccw_device->dev,
struct fc_rport *rport = port->rport;
if (rport) {
+ zfcp_dbf_rec_trig("scpdely", port->adapter, port, NULL,
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL,
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL);
fc_remote_port_delete(rport);
port->rport = NULL;
}
Please read the comments at the top of
<file:drivers/scsi/3w-sas.c>.
-config SCSI_7000FASST
- tristate "7000FASST SCSI support"
- depends on ISA && SCSI && ISA_DMA_API
- select CHECK_SIGNATURE
- help
- This driver supports the Western Digital 7000 SCSI host adapter
- family. Some information is in the source:
- <file:drivers/scsi/wd7000.c>.
-
- To compile this driver as a module, choose M here: the
- module will be called wd7000.
-
config SCSI_ACARD
tristate "ACARD SCSI support"
depends on PCI && SCSI
To compile this driver as a module, choose M here: the
module will be called advansys.
-config SCSI_IN2000
- tristate "Always IN2000 SCSI support"
- depends on ISA && SCSI
- help
- This is support for an ISA bus SCSI host adapter. You'll find more
- information in <file:Documentation/scsi/in2000.txt>. If it doesn't work
- out of the box, you may have to change the jumpers for IRQ or
- address selection.
-
- To compile this driver as a module, choose M here: the
- module will be called in2000.
-
config SCSI_ARCMSR
tristate "ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Adapter"
depends on PCI && SCSI
source "drivers/scsi/esas2r/Kconfig"
source "drivers/scsi/megaraid/Kconfig.megaraid"
source "drivers/scsi/mpt3sas/Kconfig"
+source "drivers/scsi/smartpqi/Kconfig"
source "drivers/scsi/ufs/Kconfig"
config SCSI_HPTIOP
To compile this driver as a module, choose M here: the
module will be called dmx3191d.
-config SCSI_DTC3280
- tristate "DTC3180/3280 SCSI support"
- depends on ISA && SCSI
- select SCSI_SPI_ATTRS
- select CHECK_SIGNATURE
- help
- This is support for DTC 3180/3280 SCSI Host Adapters. Please read
- the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, and the file
- <file:Documentation/scsi/dtc3x80.txt>.
-
- To compile this driver as a module, choose M here: the
- module will be called dtc.
-
config SCSI_EATA
tristate "EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support"
depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
not allow targets to disconnect is not reasonable if there is more
than 1 device on a SCSI bus. The normal answer therefore is N.
-config SCSI_PAS16
- tristate "PAS16 SCSI support"
- depends on ISA && SCSI
- select SCSI_SPI_ATTRS
- ---help---
- This is support for a SCSI host adapter. It is explained in section
- 3.10 of the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. If it doesn't work out
- of the box, you may have to change some settings in
- <file:drivers/scsi/pas16.h>.
-
- To compile this driver as a module, choose M here: the
- module will be called pas16.
-
config SCSI_QLOGIC_FAS
tristate "Qlogic FAS SCSI support"
depends on ISA && SCSI
To compile this driver as a module, choose M here: the
module will be called am53c974.
-config SCSI_T128
- tristate "Trantor T128/T128F/T228 SCSI support"
- depends on ISA && SCSI
- select SCSI_SPI_ATTRS
- select CHECK_SIGNATURE
- ---help---
- This is support for a SCSI host adapter. It is explained in section
- 3.11 of the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. If it doesn't work out
- of the box, you may have to change some settings in
- <file:drivers/scsi/t128.h>. Note that Trantor was purchased by
- Adaptec, and some former Trantor products are being sold under the
- Adaptec name.
-
- To compile this driver as a module, choose M here: the
- module will be called t128.
-
-config SCSI_U14_34F
- tristate "UltraStor 14F/34F support"
- depends on ISA && SCSI && ISA_DMA_API
- ---help---
- This is support for the UltraStor 14F and 34F SCSI-2 host adapters.
- The source at <file:drivers/scsi/u14-34f.c> contains some
- information about this hardware. If the driver doesn't work out of
- the box, you may have to change some settings in
- <file: drivers/scsi/u14-34f.c>. Read the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. Note that there is also
- another driver for the same hardware: "UltraStor SCSI support",
- below. You should say Y to both only if you want 24F support as
- well.
-
- To compile this driver as a module, choose M here: the
- module will be called u14-34f.
-
-config SCSI_U14_34F_TAGGED_QUEUE
- bool "enable tagged command queueing"
- depends on SCSI_U14_34F
- help
- This is a feature of SCSI-2 which improves performance: the host
- adapter can send several SCSI commands to a device's queue even if
- previous commands haven't finished yet.
- This is equivalent to the "u14-34f=tc:y" boot option.
-
-config SCSI_U14_34F_LINKED_COMMANDS
- bool "enable elevator sorting"
- depends on SCSI_U14_34F
- help
- This option enables elevator sorting for all probed SCSI disks and
- CD-ROMs. It definitely reduces the average seek distance when doing
- random seeks, but this does not necessarily result in a noticeable
- performance improvement: your mileage may vary...
- This is equivalent to the "u14-34f=lc:y" boot option.
-
-config SCSI_U14_34F_MAX_TAGS
- int "maximum number of queued commands"
- depends on SCSI_U14_34F
- default "8"
- help
- This specifies how many SCSI commands can be maximally queued for
- each probed SCSI device. You should reduce the default value of 8
- only if you have disks with buggy or limited tagged command support.
- Minimum is 2 and maximum is 14. This value is also the window size
- used by the elevator sorting option above. The effective value used
- by the driver for each probed SCSI device is reported at boot time.
- This is equivalent to the "u14-34f=mq:8" boot option.
-
-config SCSI_ULTRASTOR
- tristate "UltraStor SCSI support"
- depends on X86 && ISA && SCSI && ISA_DMA_API
- ---help---
- This is support for the UltraStor 14F, 24F and 34F SCSI-2 host
- adapter family. This driver is explained in section 3.12 of the
- SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. If it doesn't work out
- of the box, you may have to change some settings in
- <file:drivers/scsi/ultrastor.h>.
-
- Note that there is also another driver for the same hardware:
- "UltraStor 14F/34F support", above.
-
- To compile this driver as a module, choose M here: the
- module will be called ultrastor.
-
config SCSI_NSP32
tristate "Workbit NinjaSCSI-32Bi/UDE support"
depends on PCI && SCSI && !64BIT
obj-$(CONFIG_SCSI_ADVANSYS) += advansys.o
obj-$(CONFIG_SCSI_BUSLOGIC) += BusLogic.o
obj-$(CONFIG_SCSI_DPT_I2O) += dpt_i2o.o
-obj-$(CONFIG_SCSI_U14_34F) += u14-34f.o
obj-$(CONFIG_SCSI_ARCMSR) += arcmsr/
-obj-$(CONFIG_SCSI_ULTRASTOR) += ultrastor.o
obj-$(CONFIG_SCSI_AHA152X) += aha152x.o
obj-$(CONFIG_SCSI_AHA1542) += aha1542.o
obj-$(CONFIG_SCSI_AHA1740) += aha1740.o
obj-$(CONFIG_SCSI_ISCI) += isci/
obj-$(CONFIG_SCSI_IPS) += ips.o
obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o
-obj-$(CONFIG_SCSI_IN2000) += in2000.o
obj-$(CONFIG_SCSI_GENERIC_NCR5380) += g_NCR5380.o
obj-$(CONFIG_SCSI_GENERIC_NCR5380_MMIO) += g_NCR5380_mmio.o
obj-$(CONFIG_SCSI_NCR53C406A) += NCR53c406a.o
obj-$(CONFIG_SCSI_LPFC) += lpfc/
obj-$(CONFIG_SCSI_BFA_FC) += bfa/
obj-$(CONFIG_SCSI_CHELSIO_FCOE) += csiostor/
-obj-$(CONFIG_SCSI_PAS16) += pas16.o
-obj-$(CONFIG_SCSI_T128) += t128.o
obj-$(CONFIG_SCSI_DMX3191D) += dmx3191d.o
obj-$(CONFIG_SCSI_HPSA) += hpsa.o
-obj-$(CONFIG_SCSI_DTC3280) += dtc.o
+obj-$(CONFIG_SCSI_SMARTPQI) += smartpqi/
obj-$(CONFIG_SCSI_SYM53C8XX_2) += sym53c8xx_2/
obj-$(CONFIG_SCSI_ZALON) += zalon7xx.o
obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o
-obj-$(CONFIG_SCSI_7000FASST) += wd7000.o
obj-$(CONFIG_SCSI_EATA) += eata.o
obj-$(CONFIG_SCSI_DC395x) += dc395x.o
obj-$(CONFIG_SCSI_AM53C974) += esp_scsi.o am53c974.o
return -ETIMEDOUT;
}
-static inline int NCR5380_poll_politely(struct Scsi_Host *instance,
- int reg, int bit, int val, int wait)
-{
- return NCR5380_poll_politely2(instance, reg, bit, val,
- reg, bit, val, wait);
-}
-
#if NDEBUG
static struct {
unsigned char mask;
/* XXX - need to source or sink data here, as appropriate */
}
} else {
- /* Break up transfer into 3 ms chunks,
- * presuming 6 accesses per handshake.
+ /* Transfer a small chunk so that the
+ * irq mode lock is not held too long.
*/
- transfersize = min((unsigned long)cmd->SCp.this_residual,
- hostdata->accesses_per_ms / 2);
+ transfersize = min(cmd->SCp.this_residual,
+ NCR5380_PIO_CHUNK_SIZE);
len = transfersize;
NCR5380_transfer_pio(instance, &phase, &len,
(unsigned char **)&cmd->SCp.ptr);
#define NCR5380_CMD_SIZE (sizeof(struct NCR5380_cmd))
+#define NCR5380_PIO_CHUNK_SIZE 256
+
static inline struct scsi_cmnd *NCR5380_to_scmd(struct NCR5380_cmd *ncmd_ptr)
{
return ((struct scsi_cmnd *)ncmd_ptr) - 1;
static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *, struct scsi_cmnd *);
static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data);
static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data);
-static int NCR5380_poll_politely(struct Scsi_Host *, int, int, int, int);
static int NCR5380_poll_politely2(struct Scsi_Host *, int, int, int, int, int, int, int);
+static inline int NCR5380_poll_politely(struct Scsi_Host *instance,
+ int reg, int bit, int val, int wait)
+{
+ return NCR5380_poll_politely2(instance, reg, bit, val,
+ reg, bit, val, wait);
+}
+
#endif /* __KERNEL__ */
#endif /* NCR5380_H */
* @dev: Adapter
* @comm: communications method
*/
-int aac_src_select_comm(struct aac_dev *dev, int comm)
+static int aac_src_select_comm(struct aac_dev *dev, int comm)
{
switch (comm) {
case AAC_COMM_MESSAGE:
pci_name(asd_ha->pcidev));
return err;
}
- pci_write_config_dword(asd_ha->pcidev, PCIC_HSTPCIX_CNTRL,
+ err = pci_write_config_dword(asd_ha->pcidev, PCIC_HSTPCIX_CNTRL,
v | SC_TMR_DIS);
if (err) {
asd_printk("couldn't disable split completion timer of %s\n",
}
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
unsigned char *ver_addr;
- int32_t user_len, cnt2end;
+ uint32_t user_len;
+ int32_t cnt2end;
uint8_t *pQbuffer, *ptmpuserbuffer;
+
+ user_len = pcmdmessagefld->cmdmessage.Length;
+ if (user_len > ARCMSR_API_DATA_BUFLEN) {
+ retvalue = ARCMSR_MESSAGE_FAIL;
+ goto message_out;
+ }
+
ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
if (!ver_addr) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
ptmpuserbuffer = ver_addr;
- user_len = pcmdmessagefld->cmdmessage.Length;
+
memcpy(ptmpuserbuffer,
pcmdmessagefld->messagedatabuffer, user_len);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* Public License is included in this distribution in the file called COPYING.
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
u32 max_eqd; /* in usecs */
u32 prev_eqd; /* in usecs */
u32 et_eqd; /* configured val when aic is off */
- ulong jiffs;
+ ulong jiffies;
u64 eq_prev; /* Used to calculate eqe */
};
struct be_queue_info q;
struct beiscsi_hba *phba;
struct be_queue_info *cq;
- struct work_struct work_cqs; /* Work Item */
+ struct work_struct mcc_work; /* Work Item */
struct irq_poll iopoll;
};
struct beiscsi_mcc_tag_state {
unsigned long tag_state;
-#define MCC_TAG_STATE_RUNNING 1
-#define MCC_TAG_STATE_TIMEOUT 2
+#define MCC_TAG_STATE_RUNNING 0
+#define MCC_TAG_STATE_TIMEOUT 1
+#define MCC_TAG_STATE_ASYNC 2
+#define MCC_TAG_STATE_IGNORE 3
+ void (*cbfn)(struct beiscsi_hba *, unsigned int);
struct be_dma_mem tag_mem_state;
};
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* Public License is included in this distribution in the file called COPYING.
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
#include "be.h"
#include "be_mgmt.h"
-int beiscsi_pci_soft_reset(struct beiscsi_hba *phba)
-{
- u32 sreset;
- u8 *pci_reset_offset = 0;
- u8 *pci_online0_offset = 0;
- u8 *pci_online1_offset = 0;
- u32 pconline0 = 0;
- u32 pconline1 = 0;
- u32 i;
-
- pci_reset_offset = (u8 *)phba->pci_va + BE2_SOFT_RESET;
- pci_online0_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE0;
- pci_online1_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE1;
- sreset = readl((void *)pci_reset_offset);
- sreset |= BE2_SET_RESET;
- writel(sreset, (void *)pci_reset_offset);
-
- i = 0;
- while (sreset & BE2_SET_RESET) {
- if (i > 64)
- break;
- msleep(100);
- sreset = readl((void *)pci_reset_offset);
- i++;
- }
-
- if (sreset & BE2_SET_RESET) {
- printk(KERN_ERR DRV_NAME
- " Soft Reset did not deassert\n");
- return -EIO;
- }
- pconline1 = BE2_MPU_IRAM_ONLINE;
- writel(pconline0, (void *)pci_online0_offset);
- writel(pconline1, (void *)pci_online1_offset);
-
- sreset |= BE2_SET_RESET;
- writel(sreset, (void *)pci_reset_offset);
-
- i = 0;
- while (sreset & BE2_SET_RESET) {
- if (i > 64)
- break;
- msleep(1);
- sreset = readl((void *)pci_reset_offset);
- i++;
- }
- if (sreset & BE2_SET_RESET) {
- printk(KERN_ERR DRV_NAME
- " MPU Online Soft Reset did not deassert\n");
- return -EIO;
- }
- return 0;
-}
-
-int be_chk_reset_complete(struct beiscsi_hba *phba)
-{
- unsigned int num_loop;
- u8 *mpu_sem = 0;
- u32 status;
-
- num_loop = 1000;
- mpu_sem = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE;
- msleep(5000);
-
- while (num_loop) {
- status = readl((void *)mpu_sem);
-
- if ((status & 0x80000000) || (status & 0x0000FFFF) == 0xC000)
- break;
- msleep(60);
- num_loop--;
- }
-
- if ((status & 0x80000000) || (!num_loop)) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BC_%d : Failed in be_chk_reset_complete"
- "status = 0x%x\n", status);
- return -EIO;
- }
-
- return 0;
-}
-
-unsigned int alloc_mcc_tag(struct beiscsi_hba *phba)
-{
- unsigned int tag = 0;
+/* UE Status Low CSR */
+static const char * const desc_ue_status_low[] = {
+ "CEV",
+ "CTX",
+ "DBUF",
+ "ERX",
+ "Host",
+ "MPU",
+ "NDMA",
+ "PTC ",
+ "RDMA ",
+ "RXF ",
+ "RXIPS ",
+ "RXULP0 ",
+ "RXULP1 ",
+ "RXULP2 ",
+ "TIM ",
+ "TPOST ",
+ "TPRE ",
+ "TXIPS ",
+ "TXULP0 ",
+ "TXULP1 ",
+ "UC ",
+ "WDMA ",
+ "TXULP2 ",
+ "HOST1 ",
+ "P0_OB_LINK ",
+ "P1_OB_LINK ",
+ "HOST_GPIO ",
+ "MBOX ",
+ "AXGMAC0",
+ "AXGMAC1",
+ "JTAG",
+ "MPU_INTPEND"
+};
- spin_lock(&phba->ctrl.mcc_lock);
- if (phba->ctrl.mcc_tag_available) {
- tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index];
- phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0;
- phba->ctrl.mcc_tag_status[tag] = 0;
- phba->ctrl.ptag_state[tag].tag_state = 0;
- }
- if (tag) {
- phba->ctrl.mcc_tag_available--;
- if (phba->ctrl.mcc_alloc_index == (MAX_MCC_CMD - 1))
- phba->ctrl.mcc_alloc_index = 0;
- else
- phba->ctrl.mcc_alloc_index++;
- }
- spin_unlock(&phba->ctrl.mcc_lock);
- return tag;
-}
+/* UE Status High CSR */
+static const char * const desc_ue_status_hi[] = {
+ "LPCMEMHOST",
+ "MGMT_MAC",
+ "PCS0ONLINE",
+ "MPU_IRAM",
+ "PCS1ONLINE",
+ "PCTL0",
+ "PCTL1",
+ "PMEM",
+ "RR",
+ "TXPB",
+ "RXPP",
+ "XAUI",
+ "TXP",
+ "ARM",
+ "IPC",
+ "HOST2",
+ "HOST3",
+ "HOST4",
+ "HOST5",
+ "HOST6",
+ "HOST7",
+ "HOST8",
+ "HOST9",
+ "NETC",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown"
+};
struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
unsigned int *ref_tag)
struct be_mcc_wrb *wrb = NULL;
unsigned int tag;
- spin_lock_bh(&phba->ctrl.mcc_lock);
+ spin_lock(&phba->ctrl.mcc_lock);
if (mccq->used == mccq->len) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT |
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0;
phba->ctrl.mcc_tag_status[tag] = 0;
phba->ctrl.ptag_state[tag].tag_state = 0;
+ phba->ctrl.ptag_state[tag].cbfn = NULL;
phba->ctrl.mcc_tag_available--;
if (phba->ctrl.mcc_alloc_index == (MAX_MCC_CMD - 1))
phba->ctrl.mcc_alloc_index = 0;
mccq->used++;
alloc_failed:
- spin_unlock_bh(&phba->ctrl.mcc_lock);
+ spin_unlock(&phba->ctrl.mcc_lock);
return wrb;
}
{
struct be_queue_info *mccq = &ctrl->mcc_obj.q;
- spin_lock_bh(&ctrl->mcc_lock);
+ spin_lock(&ctrl->mcc_lock);
tag = tag & MCC_Q_CMD_TAG_MASK;
ctrl->mcc_tag[ctrl->mcc_free_index] = tag;
if (ctrl->mcc_free_index == (MAX_MCC_CMD - 1))
ctrl->mcc_free_index++;
ctrl->mcc_tag_available++;
mccq->used--;
- spin_unlock_bh(&ctrl->mcc_lock);
+ spin_unlock(&ctrl->mcc_lock);
}
-/**
- * beiscsi_fail_session(): Closing session with appropriate error
- * @cls_session: ptr to session
- **/
-void beiscsi_fail_session(struct iscsi_cls_session *cls_session)
+/*
+ * beiscsi_mcc_compl_status - Return the status of MCC completion
+ * @phba: Driver private structure
+ * @tag: Tag for the MBX Command
+ * @wrb: the WRB used for the MBX Command
+ * @mbx_cmd_mem: ptr to memory allocated for MBX Cmd
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero
+ */
+int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
+ struct be_dma_mem *mbx_cmd_mem)
{
- iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+ uint16_t status = 0, addl_status = 0, wrb_num = 0;
+ struct be_cmd_resp_hdr *mbx_resp_hdr;
+ struct be_cmd_req_hdr *mbx_hdr;
+ struct be_mcc_wrb *temp_wrb;
+ uint32_t mcc_tag_status;
+ int rc = 0;
+
+ mcc_tag_status = phba->ctrl.mcc_tag_status[tag];
+ status = (mcc_tag_status & CQE_STATUS_MASK);
+ addl_status = ((mcc_tag_status & CQE_STATUS_ADDL_MASK) >>
+ CQE_STATUS_ADDL_SHIFT);
+
+ if (mbx_cmd_mem) {
+ mbx_hdr = (struct be_cmd_req_hdr *)mbx_cmd_mem->va;
+ } else {
+ wrb_num = (mcc_tag_status & CQE_STATUS_WRB_MASK) >>
+ CQE_STATUS_WRB_SHIFT;
+ temp_wrb = (struct be_mcc_wrb *)queue_get_wrb(mccq, wrb_num);
+ mbx_hdr = embedded_payload(temp_wrb);
+
+ if (wrb)
+ *wrb = temp_wrb;
+ }
+
+ if (status || addl_status) {
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
+ BEISCSI_LOG_CONFIG,
+ "BC_%d : MBX Cmd Failed for Subsys : %d Opcode : %d with Status : %d and Extd_Status : %d\n",
+ mbx_hdr->subsystem, mbx_hdr->opcode,
+ status, addl_status);
+ rc = -EIO;
+ if (status == MCC_STATUS_INSUFFICIENT_BUFFER) {
+ mbx_resp_hdr = (struct be_cmd_resp_hdr *)mbx_hdr;
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
+ BEISCSI_LOG_CONFIG,
+ "BC_%d : Insufficient Buffer Error Resp_Len : %d Actual_Resp_Len : %d\n",
+ mbx_resp_hdr->response_length,
+ mbx_resp_hdr->actual_resp_len);
+ rc = -EAGAIN;
+ }
+ }
+
+ return rc;
}
/*
* Failure: Non-Zero
**/
int beiscsi_mccq_compl_wait(struct beiscsi_hba *phba,
- uint32_t tag, struct be_mcc_wrb **wrb,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
struct be_dma_mem *mbx_cmd_mem)
{
int rc = 0;
- uint32_t mcc_tag_status;
- uint16_t status = 0, addl_status = 0, wrb_num = 0;
- struct be_mcc_wrb *temp_wrb;
- struct be_cmd_req_hdr *mbx_hdr;
- struct be_cmd_resp_hdr *mbx_resp_hdr;
- struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
- if (beiscsi_error(phba))
- return -EPERM;
+ if (beiscsi_hba_in_error(phba)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ return -EIO;
+ }
/* wait for the mccq completion */
- rc = wait_event_interruptible_timeout(
- phba->ctrl.mcc_wait[tag],
- phba->ctrl.mcc_tag_status[tag],
- msecs_to_jiffies(
- BEISCSI_HOST_MBX_TIMEOUT));
+ rc = wait_event_interruptible_timeout(phba->ctrl.mcc_wait[tag],
+ phba->ctrl.mcc_tag_status[tag],
+ msecs_to_jiffies(
+ BEISCSI_HOST_MBX_TIMEOUT));
+ /**
+ * Return EIO if port is being disabled. Associated DMA memory, if any,
+ * is freed by the caller. When port goes offline, MCCQ is cleaned up
+ * so does WRB.
+ */
+ if (!test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ return -EIO;
+ }
+
/**
* If MBOX cmd timeout expired, tag and resource allocated
* for cmd is not freed until FW returns completion.
return -EBUSY;
}
- rc = 0;
- mcc_tag_status = phba->ctrl.mcc_tag_status[tag];
- status = (mcc_tag_status & CQE_STATUS_MASK);
- addl_status = ((mcc_tag_status & CQE_STATUS_ADDL_MASK) >>
- CQE_STATUS_ADDL_SHIFT);
-
- if (mbx_cmd_mem) {
- mbx_hdr = (struct be_cmd_req_hdr *)mbx_cmd_mem->va;
- } else {
- wrb_num = (mcc_tag_status & CQE_STATUS_WRB_MASK) >>
- CQE_STATUS_WRB_SHIFT;
- temp_wrb = (struct be_mcc_wrb *)queue_get_wrb(mccq, wrb_num);
- mbx_hdr = embedded_payload(temp_wrb);
-
- if (wrb)
- *wrb = temp_wrb;
- }
-
- if (status || addl_status) {
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
- BEISCSI_LOG_CONFIG,
- "BC_%d : MBX Cmd Failed for "
- "Subsys : %d Opcode : %d with "
- "Status : %d and Extd_Status : %d\n",
- mbx_hdr->subsystem,
- mbx_hdr->opcode,
- status, addl_status);
- rc = -EIO;
- if (status == MCC_STATUS_INSUFFICIENT_BUFFER) {
- mbx_resp_hdr = (struct be_cmd_resp_hdr *) mbx_hdr;
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
- BEISCSI_LOG_CONFIG,
- "BC_%d : Insufficient Buffer Error "
- "Resp_Len : %d Actual_Resp_Len : %d\n",
- mbx_resp_hdr->response_length,
- mbx_resp_hdr->actual_resp_len);
- rc = -EAGAIN;
- }
- }
+ rc = __beiscsi_mcc_compl_status(phba, tag, wrb, mbx_cmd_mem);
free_mcc_wrb(&phba->ctrl, tag);
return rc;
static int beiscsi_process_mbox_compl(struct be_ctrl_info *ctrl,
struct be_mcc_compl *compl)
{
- u16 compl_status, extd_status;
struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
struct be_cmd_req_hdr *hdr = embedded_payload(wrb);
- struct be_cmd_resp_hdr *resp_hdr;
+ u16 compl_status, extd_status;
/**
* To check if valid bit is set, check the entire word as we don't know
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : error in cmd completion: Subsystem : %d Opcode : %d status(compl/extd)=%d/%d\n",
hdr->subsystem, hdr->opcode, compl_status, extd_status);
-
- if (compl_status == MCC_STATUS_INSUFFICIENT_BUFFER) {
- /* if status is insufficient buffer, check the length */
- resp_hdr = (struct be_cmd_resp_hdr *) hdr;
- if (resp_hdr->response_length)
- return 0;
- }
- return -EINVAL;
+ return compl_status;
}
static void beiscsi_process_async_link(struct beiscsi_hba *phba,
* This has been newly introduced in SKH-R Firmware 10.0.338.45.
**/
if (evt->port_link_status & BE_ASYNC_LINK_UP_MASK) {
- phba->state = BE_ADAPTER_LINK_UP | BE_ADAPTER_CHECK_BOOT;
- phba->get_boot = BE_GET_BOOT_RETRIES;
+ set_bit(BEISCSI_HBA_LINK_UP, &phba->state);
+ if (test_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state))
+ beiscsi_start_boot_work(phba, BE_BOOT_INVALID_SHANDLE);
__beiscsi_log(phba, KERN_ERR,
"BC_%d : Link Up on Port %d tag 0x%x\n",
evt->physical_port, evt->event_tag);
} else {
- phba->state = BE_ADAPTER_LINK_DOWN;
+ clear_bit(BEISCSI_HBA_LINK_UP, &phba->state);
__beiscsi_log(phba, KERN_ERR,
"BC_%d : Link Down on Port %d tag 0x%x\n",
evt->physical_port, evt->event_tag);
iscsi_host_for_each_session(phba->shost,
- beiscsi_fail_session);
+ beiscsi_session_fail);
}
}
beiscsi_process_async_link(phba, compl);
break;
case ASYNC_EVENT_CODE_ISCSI:
- phba->state |= BE_ADAPTER_CHECK_BOOT;
- phba->get_boot = BE_GET_BOOT_RETRIES;
+ if (test_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state))
+ beiscsi_start_boot_work(phba, BE_BOOT_INVALID_SHANDLE);
sev = KERN_ERR;
break;
case ASYNC_EVENT_CODE_SLI:
return 0;
}
+ /* end MCC with this tag */
+ clear_bit(MCC_TAG_STATE_RUNNING, &ctrl->ptag_state[tag].tag_state);
+
if (test_bit(MCC_TAG_STATE_TIMEOUT, &ctrl->ptag_state[tag].tag_state)) {
beiscsi_log(phba, KERN_WARNING,
BEISCSI_LOG_MBOX | BEISCSI_LOG_INIT |
* Only for non-embedded cmd, PCI resource is allocated.
**/
tag_mem = &ctrl->ptag_state[tag].tag_mem_state;
- if (tag_mem->size)
+ if (tag_mem->size) {
pci_free_consistent(ctrl->pdev, tag_mem->size,
tag_mem->va, tag_mem->dma);
+ tag_mem->size = 0;
+ }
free_mcc_wrb(ctrl, tag);
return 0;
}
CQE_STATUS_ADDL_MASK;
ctrl->mcc_tag_status[tag] |= (compl_status & CQE_STATUS_MASK);
- /* write ordering forced in wake_up_interruptible */
- clear_bit(MCC_TAG_STATE_RUNNING, &ctrl->ptag_state[tag].tag_state);
- wake_up_interruptible(&ctrl->mcc_wait[tag]);
- return 0;
-}
-
-/*
- * be_mcc_compl_poll()- Wait for MBX completion
- * @phba: driver private structure
- *
- * Wait till no more pending mcc requests are present
- *
- * return
- * Success: 0
- * Failure: Non-Zero
- *
- **/
-int be_mcc_compl_poll(struct beiscsi_hba *phba, unsigned int tag)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- int i;
-
- if (!test_bit(MCC_TAG_STATE_RUNNING,
- &ctrl->ptag_state[tag].tag_state)) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BC_%d: tag %u state not running\n", tag);
+ if (test_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state)) {
+ if (ctrl->ptag_state[tag].cbfn)
+ ctrl->ptag_state[tag].cbfn(phba, tag);
+ else
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : MBX ASYNC command with no callback\n");
+ free_mcc_wrb(ctrl, tag);
return 0;
}
- for (i = 0; i < mcc_timeout; i++) {
- if (beiscsi_error(phba))
- return -EIO;
- beiscsi_process_mcc_cq(phba);
- /* after polling, wrb and tag need to be released */
- if (!test_bit(MCC_TAG_STATE_RUNNING,
- &ctrl->ptag_state[tag].tag_state)) {
- free_mcc_wrb(ctrl, tag);
- break;
- }
- udelay(100);
- }
-
- if (i < mcc_timeout)
+ if (test_bit(MCC_TAG_STATE_IGNORE, &ctrl->ptag_state[tag].tag_state)) {
+ /* just check completion status and free wrb */
+ __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
+ free_mcc_wrb(ctrl, tag);
return 0;
+ }
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BC_%d : FW Timed Out\n");
- phba->fw_timeout = true;
- beiscsi_ue_detect(phba);
- return -EBUSY;
+ wake_up_interruptible(&ctrl->mcc_wait[tag]);
+ return 0;
}
void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag)
*/
timeout = jiffies + msecs_to_jiffies(BEISCSI_MBX_RDY_BIT_TIMEOUT);
do {
- if (beiscsi_error(phba))
+ if (beiscsi_hba_in_error(phba))
return -EIO;
ready = ioread32(db);
if (time_after(jiffies, timeout))
break;
- msleep(20);
+ /* 1ms sleep is enough in most cases */
+ schedule_timeout_uninterruptible(msecs_to_jiffies(1));
} while (!ready);
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : FW Timed Out\n");
-
- phba->fw_timeout = true;
- beiscsi_ue_detect(phba);
-
+ set_bit(BEISCSI_HBA_FW_TIMEOUT, &phba->state);
return -EBUSY;
}
* Success: 0
* Failure: Non-Zero
**/
-int be_mbox_notify(struct be_ctrl_info *ctrl)
+static int be_mbox_notify(struct be_ctrl_info *ctrl)
{
int status;
u32 val = 0;
return status;
}
-/**
- * be_cmd_fw_initialize()- Initialize FW
- * @ctrl: Pointer to function control structure
- *
- * Send FW initialize pattern for the function.
- *
- * return
- * Success: 0
- * Failure: Non-Zero value
- **/
-int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
-{
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
- struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
- int status;
- u8 *endian_check;
-
- mutex_lock(&ctrl->mbox_lock);
- memset(wrb, 0, sizeof(*wrb));
-
- endian_check = (u8 *) wrb;
- *endian_check++ = 0xFF;
- *endian_check++ = 0x12;
- *endian_check++ = 0x34;
- *endian_check++ = 0xFF;
- *endian_check++ = 0xFF;
- *endian_check++ = 0x56;
- *endian_check++ = 0x78;
- *endian_check++ = 0xFF;
- be_dws_cpu_to_le(wrb, sizeof(*wrb));
-
- status = be_mbox_notify(ctrl);
- if (status)
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BC_%d : be_cmd_fw_initialize Failed\n");
-
- mutex_unlock(&ctrl->mbox_lock);
- return status;
-}
-
-/**
- * be_cmd_fw_uninit()- Uinitialize FW
- * @ctrl: Pointer to function control structure
- *
- * Send FW uninitialize pattern for the function
- *
- * return
- * Success: 0
- * Failure: Non-Zero value
- **/
-int be_cmd_fw_uninit(struct be_ctrl_info *ctrl)
-{
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
- struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
- int status;
- u8 *endian_check;
-
- mutex_lock(&ctrl->mbox_lock);
- memset(wrb, 0, sizeof(*wrb));
-
- endian_check = (u8 *) wrb;
- *endian_check++ = 0xFF;
- *endian_check++ = 0xAA;
- *endian_check++ = 0xBB;
- *endian_check++ = 0xFF;
- *endian_check++ = 0xFF;
- *endian_check++ = 0xCC;
- *endian_check++ = 0xDD;
- *endian_check = 0xFF;
-
- be_dws_cpu_to_le(wrb, sizeof(*wrb));
-
- status = be_mbox_notify(ctrl);
- if (status)
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BC_%d : be_cmd_fw_uninit Failed\n");
-
- mutex_unlock(&ctrl->mbox_lock);
- return status;
-}
-
int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
struct be_queue_info *cq, struct be_queue_info *eq,
bool sol_evts, bool no_delay, int coalesce_wm)
return status;
}
-int beiscsi_cmd_reset_function(struct beiscsi_hba *phba)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
- struct be_post_sgl_pages_req *req = embedded_payload(wrb);
- int status;
-
- mutex_lock(&ctrl->mbox_lock);
-
- req = embedded_payload(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
- OPCODE_COMMON_FUNCTION_RESET, sizeof(*req));
- status = be_mbox_notify(ctrl);
-
- mutex_unlock(&ctrl->mbox_lock);
- return status;
-}
-
/**
* be_cmd_set_vlan()- Configure VLAN paramters on the adapter
* @phba: device priv structure instance
return tag;
}
+
+int beiscsi_check_supported_fw(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba)
+{
+ struct be_dma_mem nonemb_cmd;
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mgmt_controller_attributes *req;
+ struct be_sge *sge = nonembedded_sgl(wrb);
+ int status = 0;
+
+ nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
+ sizeof(struct be_mgmt_controller_attributes),
+ &nonemb_cmd.dma);
+ if (nonemb_cmd.va == NULL) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : pci_alloc_consistent failed in %s\n",
+ __func__);
+ return -ENOMEM;
+ }
+ nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
+ req = nonemb_cmd.va;
+ memset(req, 0, sizeof(*req));
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd.size);
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : Firmware Version of CMD : %s\n"
+ "Firmware Version is : %s\n"
+ "Developer Build, not performing version check...\n",
+ resp->params.hba_attribs
+ .flashrom_version_string,
+ resp->params.hba_attribs.
+ firmware_version_string);
+
+ phba->fw_config.iscsi_features =
+ resp->params.hba_attribs.iscsi_features;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : phba->fw_config.iscsi_features = %d\n",
+ phba->fw_config.iscsi_features);
+ memcpy(phba->fw_ver_str, resp->params.hba_attribs.
+ firmware_version_string, BEISCSI_VER_STRLEN);
+ } else
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : Failed in beiscsi_check_supported_fw\n");
+ mutex_unlock(&ctrl->mbox_lock);
+ if (nonemb_cmd.va)
+ pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+
+ return status;
+}
+
+/**
+ * beiscsi_get_fw_config()- Get the FW config for the function
+ * @ctrl: ptr to Ctrl Info
+ * @phba: ptr to the dev priv structure
+ *
+ * Get the FW config and resources available for the function.
+ * The resources are created based on the count received here.
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero Value
+ **/
+int beiscsi_get_fw_config(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_fw_cfg *pfw_cfg = embedded_payload(wrb);
+ uint32_t cid_count, icd_count;
+ int status = -EINVAL;
+ uint8_t ulp_num = 0;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*pfw_cfg), true, 0);
+
+ be_cmd_hdr_prepare(&pfw_cfg->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_QUERY_FIRMWARE_CONFIG,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+
+ if (be_mbox_notify(ctrl)) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : Failed in beiscsi_get_fw_config\n");
+ goto fail_init;
+ }
+
+ /* FW response formats depend on port id */
+ phba->fw_config.phys_port = pfw_cfg->phys_port;
+ if (phba->fw_config.phys_port >= BEISCSI_PHYS_PORT_MAX) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : invalid physical port id %d\n",
+ phba->fw_config.phys_port);
+ goto fail_init;
+ }
+
+ /* populate and check FW config against min and max values */
+ if (!is_chip_be2_be3r(phba)) {
+ phba->fw_config.eqid_count = pfw_cfg->eqid_count;
+ phba->fw_config.cqid_count = pfw_cfg->cqid_count;
+ if (phba->fw_config.eqid_count == 0 ||
+ phba->fw_config.eqid_count > 2048) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : invalid EQ count %d\n",
+ phba->fw_config.eqid_count);
+ goto fail_init;
+ }
+ if (phba->fw_config.cqid_count == 0 ||
+ phba->fw_config.cqid_count > 4096) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : invalid CQ count %d\n",
+ phba->fw_config.cqid_count);
+ goto fail_init;
+ }
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : EQ_Count : %d CQ_Count : %d\n",
+ phba->fw_config.eqid_count,
+ phba->fw_config.cqid_count);
+ }
+
+ /**
+ * Check on which all ULP iSCSI Protocol is loaded.
+ * Set the Bit for those ULP. This set flag is used
+ * at all places in the code to check on which ULP
+ * iSCSi Protocol is loaded
+ **/
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (pfw_cfg->ulp[ulp_num].ulp_mode &
+ BEISCSI_ULP_ISCSI_INI_MODE) {
+ set_bit(ulp_num, &phba->fw_config.ulp_supported);
+
+ /* Get the CID, ICD and Chain count for each ULP */
+ phba->fw_config.iscsi_cid_start[ulp_num] =
+ pfw_cfg->ulp[ulp_num].sq_base;
+ phba->fw_config.iscsi_cid_count[ulp_num] =
+ pfw_cfg->ulp[ulp_num].sq_count;
+
+ phba->fw_config.iscsi_icd_start[ulp_num] =
+ pfw_cfg->ulp[ulp_num].icd_base;
+ phba->fw_config.iscsi_icd_count[ulp_num] =
+ pfw_cfg->ulp[ulp_num].icd_count;
+
+ phba->fw_config.iscsi_chain_start[ulp_num] =
+ pfw_cfg->chain_icd[ulp_num].chain_base;
+ phba->fw_config.iscsi_chain_count[ulp_num] =
+ pfw_cfg->chain_icd[ulp_num].chain_count;
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : Function loaded on ULP : %d\n"
+ "\tiscsi_cid_count : %d\n"
+ "\tiscsi_cid_start : %d\n"
+ "\t iscsi_icd_count : %d\n"
+ "\t iscsi_icd_start : %d\n",
+ ulp_num,
+ phba->fw_config.
+ iscsi_cid_count[ulp_num],
+ phba->fw_config.
+ iscsi_cid_start[ulp_num],
+ phba->fw_config.
+ iscsi_icd_count[ulp_num],
+ phba->fw_config.
+ iscsi_icd_start[ulp_num]);
+ }
+ }
+
+ if (phba->fw_config.ulp_supported == 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : iSCSI initiator mode not set: ULP0 %x ULP1 %x\n",
+ pfw_cfg->ulp[BEISCSI_ULP0].ulp_mode,
+ pfw_cfg->ulp[BEISCSI_ULP1].ulp_mode);
+ goto fail_init;
+ }
+
+ /**
+ * ICD is shared among ULPs. Use icd_count of any one loaded ULP
+ **/
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ break;
+ icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
+ if (icd_count == 0 || icd_count > 65536) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d: invalid ICD count %d\n", icd_count);
+ goto fail_init;
+ }
+
+ cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
+ BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
+ if (cid_count == 0 || cid_count > 4096) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d: invalid CID count %d\n", cid_count);
+ goto fail_init;
+ }
+
+ /**
+ * Check FW is dual ULP aware i.e. can handle either
+ * of the protocols.
+ */
+ phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode &
+ BEISCSI_FUNC_DUA_MODE);
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : DUA Mode : 0x%x\n",
+ phba->fw_config.dual_ulp_aware);
+
+ /* all set, continue using this FW config */
+ status = 0;
+fail_init:
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+/**
+ * beiscsi_get_port_name()- Get port name for the function
+ * @ctrl: ptr to Ctrl Info
+ * @phba: ptr to the dev priv structure
+ *
+ * Get the alphanumeric character for port
+ *
+ **/
+int beiscsi_get_port_name(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba)
+{
+ int ret = 0;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_get_port_name *ioctl;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ memset(wrb, 0, sizeof(*wrb));
+ ioctl = embedded_payload(wrb);
+
+ be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
+ be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_PORT_NAME,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+ ret = be_mbox_notify(ctrl);
+ phba->port_name = 0;
+ if (!ret) {
+ phba->port_name = ioctl->p.resp.port_names >>
+ (phba->fw_config.phys_port * 8) & 0xff;
+ } else {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : GET_PORT_NAME ret 0x%x status 0x%x\n",
+ ret, ioctl->h.resp_hdr.status);
+ }
+
+ if (phba->port_name == 0)
+ phba->port_name = '?';
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return ret;
+}
+
+int beiscsi_set_uer_feature(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_cmd_set_features *ioctl;
+ struct be_mcc_wrb *wrb;
+ int ret = 0;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ memset(wrb, 0, sizeof(*wrb));
+ ioctl = embedded_payload(wrb);
+
+ be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
+ be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_SET_FEATURES,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+ ioctl->feature = BE_CMD_SET_FEATURE_UER;
+ ioctl->param_len = sizeof(ioctl->param.req);
+ ioctl->param.req.uer = BE_CMD_UER_SUPP_BIT;
+ ret = be_mbox_notify(ctrl);
+ if (!ret) {
+ phba->ue2rp = ioctl->param.resp.ue2rp;
+ set_bit(BEISCSI_HBA_UER_SUPP, &phba->state);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : HBA error recovery supported\n");
+ } else {
+ /**
+ * Check "MCC_STATUS_INVALID_LENGTH" for SKH.
+ * Older FW versions return this error.
+ */
+ if (ret == MCC_STATUS_ILLEGAL_REQUEST ||
+ ret == MCC_STATUS_INVALID_LENGTH)
+ __beiscsi_log(phba, KERN_INFO,
+ "BG_%d : HBA error recovery not supported\n");
+ }
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return ret;
+}
+
+static u32 beiscsi_get_post_stage(struct beiscsi_hba *phba)
+{
+ u32 sem;
+
+ if (is_chip_be2_be3r(phba))
+ sem = ioread32(phba->csr_va + SLIPORT_SEMAPHORE_OFFSET_BEx);
+ else
+ pci_read_config_dword(phba->pcidev,
+ SLIPORT_SEMAPHORE_OFFSET_SH, &sem);
+ return sem;
+}
+
+int beiscsi_check_fw_rdy(struct beiscsi_hba *phba)
+{
+ u32 loop, post, rdy = 0;
+
+ loop = 1000;
+ while (loop--) {
+ post = beiscsi_get_post_stage(phba);
+ if (post & POST_ERROR_BIT)
+ break;
+ if ((post & POST_STAGE_MASK) == POST_STAGE_ARMFW_RDY) {
+ rdy = 1;
+ break;
+ }
+ msleep(60);
+ }
+
+ if (!rdy) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : FW not ready 0x%x\n", post);
+ }
+
+ return rdy;
+}
+
+int beiscsi_cmd_function_reset(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_post_sgl_pages_req *req = embedded_payload(wrb);
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_FUNCTION_RESET, sizeof(*req));
+ status = be_mbox_notify(ctrl);
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int beiscsi_cmd_special_wrb(struct be_ctrl_info *ctrl, u32 load)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ u8 *endian_check;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+
+ endian_check = (u8 *) wrb;
+ if (load) {
+ /* to start communicating */
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0x12;
+ *endian_check++ = 0x34;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0x56;
+ *endian_check++ = 0x78;
+ *endian_check++ = 0xFF;
+ } else {
+ /* to stop communicating */
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xAA;
+ *endian_check++ = 0xBB;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xCC;
+ *endian_check++ = 0xDD;
+ *endian_check = 0xFF;
+ }
+ be_dws_cpu_to_le(wrb, sizeof(*wrb));
+
+ status = be_mbox_notify(ctrl);
+ if (status)
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BC_%d : special WRB message failed\n");
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int beiscsi_init_sliport(struct beiscsi_hba *phba)
+{
+ int status;
+
+ /* check POST stage before talking to FW */
+ status = beiscsi_check_fw_rdy(phba);
+ if (!status)
+ return -EIO;
+
+ /* clear all error states after checking FW rdy */
+ phba->state &= ~BEISCSI_HBA_IN_ERR;
+
+ /* check again UER support */
+ phba->state &= ~BEISCSI_HBA_UER_SUPP;
+
+ /*
+ * SLI COMMON_FUNCTION_RESET completion is indicated by BMBX RDY bit.
+ * It should clean up any stale info in FW for this fn.
+ */
+ status = beiscsi_cmd_function_reset(phba);
+ if (status) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BC_%d : SLI Function Reset failed\n");
+ return status;
+ }
+
+ /* indicate driver is loading */
+ return beiscsi_cmd_special_wrb(&phba->ctrl, 1);
+}
+
+/**
+ * beiscsi_cmd_iscsi_cleanup()- Inform FW to cleanup EP data structures.
+ * @phba: pointer to dev priv structure
+ * @ulp: ULP number.
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero Value
+ **/
+int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct iscsi_cleanup_req_v1 *req_v1;
+ struct iscsi_cleanup_req *req;
+ struct be_mcc_wrb *wrb;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
+
+ /**
+ * TODO: Check with FW folks the chute value to be set.
+ * For now, use the ULP_MASK as the chute value.
+ */
+ if (is_chip_be2_be3r(phba)) {
+ req->chute = (1 << ulp);
+ req->hdr_ring_id = HWI_GET_DEF_HDRQ_ID(phba, ulp);
+ req->data_ring_id = HWI_GET_DEF_BUFQ_ID(phba, ulp);
+ } else {
+ req_v1 = (struct iscsi_cleanup_req_v1 *)req;
+ req_v1->hdr.version = 1;
+ req_v1->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba,
+ ulp));
+ req_v1->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba,
+ ulp));
+ }
+
+ status = be_mbox_notify(ctrl);
+ if (status)
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+ "BG_%d : %s failed %d\n", __func__, ulp);
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+/*
+ * beiscsi_detect_ue()- Detect Unrecoverable Error on adapter
+ * @phba: Driver priv structure
+ *
+ * Read registers linked to UE and check for the UE status
+ **/
+int beiscsi_detect_ue(struct beiscsi_hba *phba)
+{
+ uint32_t ue_mask_hi = 0, ue_mask_lo = 0;
+ uint32_t ue_hi = 0, ue_lo = 0;
+ uint8_t i = 0;
+ int ret = 0;
+
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_LOW, &ue_lo);
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_MASK_LOW,
+ &ue_mask_lo);
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_HIGH,
+ &ue_hi);
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_MASK_HI,
+ &ue_mask_hi);
+
+ ue_lo = (ue_lo & ~ue_mask_lo);
+ ue_hi = (ue_hi & ~ue_mask_hi);
+
+
+ if (ue_lo || ue_hi) {
+ set_bit(BEISCSI_HBA_IN_UE, &phba->state);
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : HBA error detected\n");
+ ret = 1;
+ }
+
+ if (ue_lo) {
+ for (i = 0; ue_lo; ue_lo >>= 1, i++) {
+ if (ue_lo & 1)
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : UE_LOW %s bit set\n",
+ desc_ue_status_low[i]);
+ }
+ }
+
+ if (ue_hi) {
+ for (i = 0; ue_hi; ue_hi >>= 1, i++) {
+ if (ue_hi & 1)
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : UE_HIGH %s bit set\n",
+ desc_ue_status_hi[i]);
+ }
+ }
+ return ret;
+}
+
+/*
+ * beiscsi_detect_tpe()- Detect Transient Parity Error on adapter
+ * @phba: Driver priv structure
+ *
+ * Read SLIPORT SEMAPHORE register to check for UER
+ *
+ **/
+int beiscsi_detect_tpe(struct beiscsi_hba *phba)
+{
+ u32 post, status;
+ int ret = 0;
+
+ post = beiscsi_get_post_stage(phba);
+ status = post & POST_STAGE_MASK;
+ if ((status & POST_ERR_RECOVERY_CODE_MASK) ==
+ POST_STAGE_RECOVERABLE_ERR) {
+ set_bit(BEISCSI_HBA_IN_TPE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BC_%d : HBA error recoverable: 0x%x\n", post);
+ ret = 1;
+ } else {
+ __beiscsi_log(phba, KERN_INFO,
+ "BC_%d : HBA in UE: 0x%x\n", post);
+ }
+
+ return ret;
+}
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* Public License is included in this distribution in the file called COPYING.
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
#define MCC_STATUS_ILLEGAL_REQUEST 0x2
#define MCC_STATUS_ILLEGAL_FIELD 0x3
#define MCC_STATUS_INSUFFICIENT_BUFFER 0x4
+#define MCC_STATUS_INVALID_LENGTH 0x74
#define CQE_STATUS_COMPL_MASK 0xFFFF
#define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */
#define MPU_MAILBOX_DB_RDY_MASK 0x1 /* bit 0 */
#define MPU_MAILBOX_DB_HI_MASK 0x2 /* bit 1 */
-/********** MPU semphore ******************/
-#define MPU_EP_SEMAPHORE_OFFSET 0xac
-#define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
-#define EP_SEMAPHORE_POST_ERR_MASK 0x1
-#define EP_SEMAPHORE_POST_ERR_SHIFT 31
+/********** MPU semphore: used for SH & BE ******************/
+#define SLIPORT_SOFTRESET_OFFSET 0x5c /* CSR BAR offset */
+#define SLIPORT_SEMAPHORE_OFFSET_BEx 0xac /* CSR BAR offset */
+#define SLIPORT_SEMAPHORE_OFFSET_SH 0x94 /* PCI-CFG offset */
+#define POST_STAGE_MASK 0x0000FFFF
+#define POST_ERROR_BIT 0x80000000
+#define POST_ERR_RECOVERY_CODE_MASK 0xF000
+
+/* Soft Reset register masks */
+#define SLIPORT_SOFTRESET_SR_MASK 0x00000080 /* SR bit */
+
+/* MPU semphore POST stage values */
+#define POST_STAGE_AWAITING_HOST_RDY 0x1 /* FW awaiting goahead from host */
+#define POST_STAGE_HOST_RDY 0x2 /* Host has given go-ahed to FW */
+#define POST_STAGE_BE_RESET 0x3 /* Host wants to reset chip */
+#define POST_STAGE_ARMFW_RDY 0xC000 /* FW is done with POST */
+#define POST_STAGE_RECOVERABLE_ERR 0xE000 /* Recoverable err detected */
/********** MCC door bell ************/
#define DB_MCCQ_OFFSET 0x140
/* Number of entries posted */
#define DB_MCCQ_NUM_POSTED_SHIFT 16 /* bits 16 - 29 */
-/* MPU semphore POST stage values */
-#define POST_STAGE_ARMFW_RDY 0xc000 /* FW is done with POST */
-
/**
* When the async bit of mcc_compl is set, the last 4 bytes of
* mcc_compl is interpreted as follows:
#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG 58
#define OPCODE_COMMON_FUNCTION_RESET 61
#define OPCODE_COMMON_GET_PORT_NAME 77
+#define OPCODE_COMMON_SET_FEATURES 191
/**
* LIST of opcodes that are common between Initiator and Target
struct be_cmd_resp_logout_fw_sess {
struct be_cmd_resp_hdr hdr; /* dw[4] */
-#define BEISCSI_MGMT_SESSION_CLOSE 0x20
uint32_t session_status;
+#define BE_SESS_STATUS_CLOSE 0x20
} __packed;
struct mgmt_conn_login_options {
u16 size_of_structure;
u8 reserved;
u8 ip_type;
+#define BEISCSI_IP_TYPE_V4 0x1
+#define BEISCSI_IP_TYPE_STATIC_V4 0x3
+#define BEISCSI_IP_TYPE_DHCP_V4 0x5
+/* type v4 values < type v6 values */
+#define BEISCSI_IP_TYPE_V6 0x10
+#define BEISCSI_IP_TYPE_ROUTABLE_V6 0x30
+#define BEISCSI_IP_TYPE_LINK_LOCAL_V6 0x50
+#define BEISCSI_IP_TYPE_AUTO_V6 0x90
u8 addr[16];
u32 rsvd0;
} __packed;
struct be_cmd_get_boot_target_resp {
struct be_cmd_resp_hdr hdr;
- u32 boot_session_count;
- int boot_session_handle;
+ u32 boot_session_count;
+ u32 boot_session_handle;
+/**
+ * FW returns 0xffffffff if it couldn't establish connection with
+ * configured boot target.
+ */
+#define BE_BOOT_INVALID_SHANDLE 0xffffffff
};
struct be_cmd_reopen_session_req {
u8 mac_address[ETH_ALEN];
} __packed;
-#define BEISCSI_ALIAS_LEN 32
+/******************** Get HBA NAME *******************/
struct be_cmd_hba_name {
struct be_cmd_req_hdr hdr;
u16 flags;
u16 rsvd0;
u8 initiator_name[ISCSI_NAME_LEN];
- u8 initiator_alias[BEISCSI_ALIAS_LEN];
+#define BE_INI_ALIAS_LEN 32
+ u8 initiator_alias[BE_INI_ALIAS_LEN];
} __packed;
+/******************** COMMON SET Features *******************/
+#define BE_CMD_SET_FEATURE_UER 0x10
+#define BE_CMD_UER_SUPP_BIT 0x1
+struct be_uer_req {
+ u32 uer;
+ u32 rsvd;
+};
+
+struct be_uer_resp {
+ u32 uer;
+ u16 ue2rp;
+ u16 ue2sr;
+};
+
+struct be_cmd_set_features {
+ union {
+ struct be_cmd_req_hdr req_hdr;
+ struct be_cmd_resp_hdr resp_hdr;
+ } h;
+ u32 feature;
+ u32 param_len;
+ union {
+ struct be_uer_req req;
+ struct be_uer_resp resp;
+ u32 rsvd[2];
+ } param;
+} __packed;
+
+int beiscsi_cmd_function_reset(struct beiscsi_hba *phba);
+
+int beiscsi_cmd_special_wrb(struct be_ctrl_info *ctrl, u32 load);
+
+int beiscsi_check_fw_rdy(struct beiscsi_hba *phba);
+
+int beiscsi_init_sliport(struct beiscsi_hba *phba);
+
+int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num);
+
+int beiscsi_detect_ue(struct beiscsi_hba *phba);
+
+int beiscsi_detect_tpe(struct beiscsi_hba *phba);
+
int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
struct be_queue_info *eq, int eq_delay);
struct be_queue_info *mccq,
struct be_queue_info *cq);
-int be_poll_mcc(struct be_ctrl_info *ctrl);
-int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
- struct beiscsi_hba *phba);
unsigned int be_cmd_get_initname(struct beiscsi_hba *phba);
void free_mcc_wrb(struct be_ctrl_info *ctrl, unsigned int tag);
-int be_cmd_modify_eq_delay(struct beiscsi_hba *phba, struct be_set_eqd *,
+int beiscsi_modify_eq_delay(struct beiscsi_hba *phba, struct be_set_eqd *,
int num);
int beiscsi_mccq_compl_wait(struct beiscsi_hba *phba,
- uint32_t tag, struct be_mcc_wrb **wrb,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
struct be_dma_mem *mbx_cmd_mem);
-/*ISCSI Functuions */
-int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);
-int be_cmd_fw_uninit(struct be_ctrl_info *ctrl);
-
+int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
+ struct be_dma_mem *mbx_cmd_mem);
struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
-int be_mcc_compl_poll(struct beiscsi_hba *phba, unsigned int tag);
void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag);
struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
unsigned int *ref_tag);
int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
struct be_mcc_compl *compl);
-
-int be_mbox_notify(struct be_ctrl_info *ctrl);
-
int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
struct be_queue_info *cq,
struct be_queue_info *dq, int length,
struct be_dma_mem *q_mem, u32 page_offset,
u32 num_pages);
-int beiscsi_cmd_reset_function(struct beiscsi_hba *phba);
-
int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
struct be_queue_info *wrbq,
struct hwi_wrb_context *pwrb_context,
/* Configuration Functions */
int be_cmd_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
+int beiscsi_check_supported_fw(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba);
+
+int beiscsi_get_fw_config(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);
+
+int beiscsi_get_port_name(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);
+
+int beiscsi_set_uer_feature(struct beiscsi_hba *phba);
+
struct be_default_pdu_context {
u32 dw[4];
} __packed;
u16 chute;
u8 hdr_ring_id;
u8 data_ring_id;
+} __packed;
+struct iscsi_cleanup_req_v1 {
+ struct be_cmd_req_hdr hdr;
+ u16 chute;
+ u16 rsvd1;
+ u16 hdr_ring_id;
+ u16 rsvd2;
+ u16 data_ring_id;
+ u16 rsvd3;
} __packed;
struct eq_delay {
* the cxn
*/
-int beiscsi_pci_soft_reset(struct beiscsi_hba *phba);
-int be_chk_reset_complete(struct beiscsi_hba *phba);
-
void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
bool embedded, u8 sge_cnt);
void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
u8 subsystem, u8 opcode, int cmd_len);
-
-void beiscsi_fail_session(struct iscsi_cls_session *cls_session);
#endif /* !BEISCSI_CMDS_H */
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
if (!ep) {
- printk(KERN_ERR
- "beiscsi_session_create: invalid ep\n");
+ pr_err("beiscsi_session_create: invalid ep\n");
return NULL;
}
beiscsi_ep = ep->dd_data;
phba = beiscsi_ep->phba;
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : PCI_ERROR Recovery\n");
- return NULL;
- } else {
+ if (!beiscsi_hba_is_online(phba)) {
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
- "BS_%d : In beiscsi_session_create\n");
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return NULL;
}
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_session_create\n");
if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
"BS_%d : Cannot handle %d cmds."
iscsi_session_teardown(cls_session);
}
+/**
+ * beiscsi_session_fail(): Closing session with appropriate error
+ * @cls_session: ptr to session
+ **/
+void beiscsi_session_fail(struct iscsi_cls_session *cls_session)
+{
+ iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
+}
+
+
/**
* beiscsi_conn_create - create an instance of iscsi connection
* @cls_session: ptr to iscsi_cls_session
return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
}
-static int beiscsi_create_ipv4_iface(struct beiscsi_hba *phba)
+static int beiscsi_iface_create_ipv4(struct beiscsi_hba *phba)
{
if (phba->ipv4_iface)
return 0;
return 0;
}
-static int beiscsi_create_ipv6_iface(struct beiscsi_hba *phba)
+static int beiscsi_iface_create_ipv6(struct beiscsi_hba *phba)
{
if (phba->ipv6_iface)
return 0;
return 0;
}
-void beiscsi_create_def_ifaces(struct beiscsi_hba *phba)
+void beiscsi_iface_create_default(struct beiscsi_hba *phba)
{
struct be_cmd_get_if_info_resp *if_info;
- if (!mgmt_get_if_info(phba, BE2_IPV4, &if_info)) {
- beiscsi_create_ipv4_iface(phba);
+ if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V4, &if_info)) {
+ beiscsi_iface_create_ipv4(phba);
kfree(if_info);
}
- if (!mgmt_get_if_info(phba, BE2_IPV6, &if_info)) {
- beiscsi_create_ipv6_iface(phba);
+ if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V6, &if_info)) {
+ beiscsi_iface_create_ipv6(phba);
kfree(if_info);
}
}
-void beiscsi_destroy_def_ifaces(struct beiscsi_hba *phba)
+void beiscsi_iface_destroy_default(struct beiscsi_hba *phba)
{
- if (phba->ipv6_iface)
+ if (phba->ipv6_iface) {
iscsi_destroy_iface(phba->ipv6_iface);
- if (phba->ipv4_iface)
- iscsi_destroy_iface(phba->ipv4_iface);
-}
-
-static int
-beiscsi_set_static_ip(struct Scsi_Host *shost,
- struct iscsi_iface_param_info *iface_param,
- void *data, uint32_t dt_len)
-{
- struct beiscsi_hba *phba = iscsi_host_priv(shost);
- struct iscsi_iface_param_info *iface_ip = NULL;
- struct iscsi_iface_param_info *iface_subnet = NULL;
- struct nlattr *nla;
- int ret;
-
-
- switch (iface_param->param) {
- case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
- nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
- if (nla)
- iface_ip = nla_data(nla);
-
- nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
- if (nla)
- iface_subnet = nla_data(nla);
- break;
- case ISCSI_NET_PARAM_IPV4_ADDR:
- iface_ip = iface_param;
- nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
- if (nla)
- iface_subnet = nla_data(nla);
- break;
- case ISCSI_NET_PARAM_IPV4_SUBNET:
- iface_subnet = iface_param;
- nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
- if (nla)
- iface_ip = nla_data(nla);
- break;
- default:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : Unsupported param %d\n",
- iface_param->param);
+ phba->ipv6_iface = NULL;
}
-
- if (!iface_ip || !iface_subnet) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : IP and Subnet Mask required\n");
- return -EINVAL;
+ if (phba->ipv4_iface) {
+ iscsi_destroy_iface(phba->ipv4_iface);
+ phba->ipv4_iface = NULL;
}
-
- ret = mgmt_set_ip(phba, iface_ip, iface_subnet,
- ISCSI_BOOTPROTO_STATIC);
-
- return ret;
}
/**
* Failure: Non-Zero Value
**/
static int
-beiscsi_set_vlan_tag(struct Scsi_Host *shost,
- struct iscsi_iface_param_info *iface_param)
+beiscsi_iface_config_vlan(struct Scsi_Host *shost,
+ struct iscsi_iface_param_info *iface_param)
{
struct beiscsi_hba *phba = iscsi_host_priv(shost);
- int ret;
-
- /* Get the Interface Handle */
- ret = mgmt_get_all_if_id(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : Getting Interface Handle Failed\n");
- return ret;
- }
+ int ret = -EPERM;
switch (iface_param->param) {
case ISCSI_NET_PARAM_VLAN_ENABLED:
+ ret = 0;
if (iface_param->value[0] != ISCSI_VLAN_ENABLE)
- ret = mgmt_set_vlan(phba, BEISCSI_VLAN_DISABLE);
+ ret = beiscsi_if_set_vlan(phba, BEISCSI_VLAN_DISABLE);
break;
case ISCSI_NET_PARAM_VLAN_TAG:
- ret = mgmt_set_vlan(phba,
- *((uint16_t *)iface_param->value));
+ ret = beiscsi_if_set_vlan(phba,
+ *((uint16_t *)iface_param->value));
break;
- default:
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BS_%d : Unknown Param Type : %d\n",
- iface_param->param);
- return -ENOSYS;
}
return ret;
}
static int
-beiscsi_set_ipv4(struct Scsi_Host *shost,
- struct iscsi_iface_param_info *iface_param,
- void *data, uint32_t dt_len)
+beiscsi_iface_config_ipv4(struct Scsi_Host *shost,
+ struct iscsi_iface_param_info *info,
+ void *data, uint32_t dt_len)
{
struct beiscsi_hba *phba = iscsi_host_priv(shost);
- int ret = 0;
+ u8 *ip = NULL, *subnet = NULL, *gw;
+ struct nlattr *nla;
+ int ret = -EPERM;
/* Check the param */
- switch (iface_param->param) {
+ switch (info->param) {
+ case ISCSI_NET_PARAM_IFACE_ENABLE:
+ if (info->value[0] == ISCSI_IFACE_ENABLE)
+ ret = beiscsi_iface_create_ipv4(phba);
+ else {
+ iscsi_destroy_iface(phba->ipv4_iface);
+ phba->ipv4_iface = NULL;
+ }
+ break;
case ISCSI_NET_PARAM_IPV4_GW:
- ret = mgmt_set_gateway(phba, iface_param);
+ gw = info->value;
+ ret = beiscsi_if_set_gw(phba, BEISCSI_IP_TYPE_V4, gw);
break;
case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
- if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
- ret = mgmt_set_ip(phba, iface_param,
- NULL, ISCSI_BOOTPROTO_DHCP);
- else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
- ret = beiscsi_set_static_ip(shost, iface_param,
- data, dt_len);
+ if (info->value[0] == ISCSI_BOOTPROTO_DHCP)
+ ret = beiscsi_if_en_dhcp(phba, BEISCSI_IP_TYPE_V4);
+ else if (info->value[0] == ISCSI_BOOTPROTO_STATIC)
+ /* release DHCP IP address */
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
+ NULL, NULL);
else
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
"BS_%d : Invalid BOOTPROTO: %d\n",
- iface_param->value[0]);
+ info->value[0]);
break;
- case ISCSI_NET_PARAM_IFACE_ENABLE:
- if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
- ret = beiscsi_create_ipv4_iface(phba);
- else
- iscsi_destroy_iface(phba->ipv4_iface);
- break;
- case ISCSI_NET_PARAM_IPV4_SUBNET:
case ISCSI_NET_PARAM_IPV4_ADDR:
- ret = beiscsi_set_static_ip(shost, iface_param,
- data, dt_len);
+ ip = info->value;
+ nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
+ if (nla) {
+ info = nla_data(nla);
+ subnet = info->value;
+ }
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
+ ip, subnet);
break;
- case ISCSI_NET_PARAM_VLAN_ENABLED:
- case ISCSI_NET_PARAM_VLAN_TAG:
- ret = beiscsi_set_vlan_tag(shost, iface_param);
+ case ISCSI_NET_PARAM_IPV4_SUBNET:
+ /*
+ * OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR ioctl needs IP
+ * and subnet both. Find IP to be applied for this subnet.
+ */
+ subnet = info->value;
+ nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
+ if (nla) {
+ info = nla_data(nla);
+ ip = info->value;
+ }
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
+ ip, subnet);
break;
- default:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : Param %d not supported\n",
- iface_param->param);
}
return ret;
}
static int
-beiscsi_set_ipv6(struct Scsi_Host *shost,
- struct iscsi_iface_param_info *iface_param,
- void *data, uint32_t dt_len)
+beiscsi_iface_config_ipv6(struct Scsi_Host *shost,
+ struct iscsi_iface_param_info *iface_param,
+ void *data, uint32_t dt_len)
{
struct beiscsi_hba *phba = iscsi_host_priv(shost);
- int ret = 0;
+ int ret = -EPERM;
switch (iface_param->param) {
case ISCSI_NET_PARAM_IFACE_ENABLE:
if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
- ret = beiscsi_create_ipv6_iface(phba);
+ ret = beiscsi_iface_create_ipv6(phba);
else {
iscsi_destroy_iface(phba->ipv6_iface);
- ret = 0;
+ phba->ipv6_iface = NULL;
}
break;
case ISCSI_NET_PARAM_IPV6_ADDR:
- ret = mgmt_set_ip(phba, iface_param, NULL,
- ISCSI_BOOTPROTO_STATIC);
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V6,
+ iface_param->value, NULL);
break;
- case ISCSI_NET_PARAM_VLAN_ENABLED:
- case ISCSI_NET_PARAM_VLAN_TAG:
- ret = beiscsi_set_vlan_tag(shost, iface_param);
- break;
- default:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : Param %d not supported\n",
- iface_param->param);
}
return ret;
}
-int be2iscsi_iface_set_param(struct Scsi_Host *shost,
- void *data, uint32_t dt_len)
+int beiscsi_iface_set_param(struct Scsi_Host *shost,
+ void *data, uint32_t dt_len)
{
struct iscsi_iface_param_info *iface_param = NULL;
struct beiscsi_hba *phba = iscsi_host_priv(shost);
struct nlattr *attrib;
uint32_t rm_len = dt_len;
- int ret = 0 ;
+ int ret;
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : In PCI_ERROR Recovery\n");
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
return -EBUSY;
}
+ /* update interface_handle */
+ ret = beiscsi_if_get_handle(phba);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Getting Interface Handle Failed\n");
+ return ret;
+ }
+
nla_for_each_attr(attrib, data, dt_len, rm_len) {
iface_param = nla_data(attrib);
return -EINVAL;
}
- switch (iface_param->iface_type) {
- case ISCSI_IFACE_TYPE_IPV4:
- ret = beiscsi_set_ipv4(shost, iface_param,
- data, dt_len);
- break;
- case ISCSI_IFACE_TYPE_IPV6:
- ret = beiscsi_set_ipv6(shost, iface_param,
- data, dt_len);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : %s.0 set param %d",
+ (iface_param->iface_type == ISCSI_IFACE_TYPE_IPV4) ?
+ "ipv4" : "ipv6", iface_param->param);
+
+ ret = -EPERM;
+ switch (iface_param->param) {
+ case ISCSI_NET_PARAM_VLAN_ENABLED:
+ case ISCSI_NET_PARAM_VLAN_TAG:
+ ret = beiscsi_iface_config_vlan(shost, iface_param);
break;
default:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : Invalid iface type :%d passed\n",
- iface_param->iface_type);
- break;
+ switch (iface_param->iface_type) {
+ case ISCSI_IFACE_TYPE_IPV4:
+ ret = beiscsi_iface_config_ipv4(shost,
+ iface_param,
+ data, dt_len);
+ break;
+ case ISCSI_IFACE_TYPE_IPV6:
+ ret = beiscsi_iface_config_ipv6(shost,
+ iface_param,
+ data, dt_len);
+ break;
+ }
}
+ if (ret == -EPERM) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : %s.0 set param %d not permitted",
+ (iface_param->iface_type ==
+ ISCSI_IFACE_TYPE_IPV4) ? "ipv4" : "ipv6",
+ iface_param->param);
+ ret = 0;
+ }
if (ret)
- return ret;
+ break;
}
return ret;
}
-static int be2iscsi_get_if_param(struct beiscsi_hba *phba,
- struct iscsi_iface *iface, int param,
- char *buf)
+static int __beiscsi_iface_get_param(struct beiscsi_hba *phba,
+ struct iscsi_iface *iface,
+ int param, char *buf)
{
struct be_cmd_get_if_info_resp *if_info;
- int len, ip_type = BE2_IPV4;
+ int len, ip_type = BEISCSI_IP_TYPE_V4;
if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
- ip_type = BE2_IPV6;
+ ip_type = BEISCSI_IP_TYPE_V6;
- len = mgmt_get_if_info(phba, ip_type, &if_info);
+ len = beiscsi_if_get_info(phba, ip_type, &if_info);
if (len)
return len;
break;
case ISCSI_NET_PARAM_VLAN_ENABLED:
len = sprintf(buf, "%s\n",
- (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
- ? "Disabled\n" : "Enabled\n");
+ (if_info->vlan_priority == BEISCSI_VLAN_DISABLE) ?
+ "disable" : "enable");
break;
case ISCSI_NET_PARAM_VLAN_ID:
if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
len = -EINVAL;
else
len = sprintf(buf, "%d\n",
- (if_info->vlan_priority &
- ISCSI_MAX_VLAN_ID));
+ (if_info->vlan_priority &
+ ISCSI_MAX_VLAN_ID));
break;
case ISCSI_NET_PARAM_VLAN_PRIORITY:
if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
len = -EINVAL;
else
len = sprintf(buf, "%d\n",
- ((if_info->vlan_priority >> 13) &
- ISCSI_MAX_VLAN_PRIORITY));
+ ((if_info->vlan_priority >> 13) &
+ ISCSI_MAX_VLAN_PRIORITY));
break;
default:
WARN_ON(1);
return len;
}
-int be2iscsi_iface_get_param(struct iscsi_iface *iface,
- enum iscsi_param_type param_type,
- int param, char *buf)
+int beiscsi_iface_get_param(struct iscsi_iface *iface,
+ enum iscsi_param_type param_type,
+ int param, char *buf)
{
struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
struct beiscsi_hba *phba = iscsi_host_priv(shost);
struct be_cmd_get_def_gateway_resp gateway;
- int len = -ENOSYS;
+ int len = -EPERM;
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : In PCI_ERROR Recovery\n");
+ if (param_type != ISCSI_NET_PARAM)
+ return 0;
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
return -EBUSY;
}
case ISCSI_NET_PARAM_VLAN_ENABLED:
case ISCSI_NET_PARAM_VLAN_ID:
case ISCSI_NET_PARAM_VLAN_PRIORITY:
- len = be2iscsi_get_if_param(phba, iface, param, buf);
+ len = __beiscsi_iface_get_param(phba, iface, param, buf);
break;
case ISCSI_NET_PARAM_IFACE_ENABLE:
- len = sprintf(buf, "enabled\n");
+ if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
+ len = sprintf(buf, "%s\n",
+ phba->ipv4_iface ? "enable" : "disable");
+ else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
+ len = sprintf(buf, "%s\n",
+ phba->ipv6_iface ? "enable" : "disable");
break;
case ISCSI_NET_PARAM_IPV4_GW:
memset(&gateway, 0, sizeof(gateway));
- len = mgmt_get_gateway(phba, BE2_IPV4, &gateway);
+ len = beiscsi_if_get_gw(phba, BEISCSI_IP_TYPE_V4, &gateway);
if (!len)
len = sprintf(buf, "%pI4\n", &gateway.ip_addr.addr);
break;
- default:
- len = -ENOSYS;
}
return len;
enum iscsi_param param, char *buf)
{
struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
- int len = 0;
+ int len;
beiscsi_log(beiscsi_ep->phba, KERN_INFO,
BEISCSI_LOG_CONFIG,
len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
break;
case ISCSI_PARAM_CONN_ADDRESS:
- if (beiscsi_ep->ip_type == BE2_IPV4)
+ if (beiscsi_ep->ip_type == BEISCSI_IP_TYPE_V4)
len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
else
len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
break;
default:
- return -ENOSYS;
+ len = -EPERM;
}
return len;
}
struct beiscsi_hba *phba = iscsi_host_priv(shost);
struct iscsi_cls_host *ihost = shost->shost_data;
- ihost->port_state = (phba->state & BE_ADAPTER_LINK_UP) ?
+ ihost->port_state = test_bit(BEISCSI_HBA_LINK_UP, &phba->state) ?
ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN;
}
struct beiscsi_hba *phba = iscsi_host_priv(shost);
int status = 0;
-
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : In PCI_ERROR Recovery\n");
- return -EBUSY;
- } else {
+ if (!beiscsi_hba_is_online(phba)) {
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
- "BS_%d : In beiscsi_get_host_param,"
- " param = %d\n", param);
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return -EBUSY;
}
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_get_host_param, param = %d\n", param);
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : In PCI_ERROR Recovery\n");
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
return -EBUSY;
- } else {
- beiscsi_log(beiscsi_conn->phba, KERN_INFO,
- BEISCSI_LOG_CONFIG,
- "BS_%d : In beiscsi_conn_start\n");
}
+ beiscsi_log(beiscsi_conn->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_conn_start\n");
memset(¶ms, 0, sizeof(struct beiscsi_offload_params));
beiscsi_ep = beiscsi_conn->ep;
struct iscsi_endpoint *ep;
int ret;
- if (shost)
- phba = iscsi_host_priv(shost);
- else {
+ if (!shost) {
ret = -ENXIO;
- printk(KERN_ERR
- "beiscsi_ep_connect shost is NULL\n");
+ pr_err("beiscsi_ep_connect shost is NULL\n");
return ERR_PTR(ret);
}
- if (beiscsi_error(phba)) {
+ phba = iscsi_host_priv(shost);
+ if (!beiscsi_hba_is_online(phba)) {
ret = -EIO;
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BS_%d : The FW state Not Stable!!!\n");
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
return ERR_PTR(ret);
}
-
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- ret = -EBUSY;
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : In PCI_ERROR Recovery\n");
- return ERR_PTR(ret);
- } else if (phba->state & BE_ADAPTER_LINK_DOWN) {
+ if (!test_bit(BEISCSI_HBA_LINK_UP, &phba->state)) {
ret = -EBUSY;
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
"BS_%d : The Adapter Port state is Down!!!\n");
tcp_upload_flag = CONNECTION_UPLOAD_ABORT;
}
- if (phba->state & BE_ADAPTER_PCI_ERR) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BS_%d : PCI_ERROR Recovery\n");
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
goto free_ep;
}
iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
}
-umode_t be2iscsi_attr_is_visible(int param_type, int param)
+umode_t beiscsi_attr_is_visible(int param_type, int param)
{
switch (param_type) {
case ISCSI_NET_PARAM:
/**
- * Copyright (C) 2005 - 2015 Avago Technologies
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Avago Technologies
* 3333 Susan Street
#include "be_main.h"
#include "be_mgmt.h"
-#define BE2_IPV4 0x1
-#define BE2_IPV6 0x10
-#define BE2_DHCP_V4 0x05
+void beiscsi_iface_create_default(struct beiscsi_hba *phba);
-#define NON_BLOCKING 0x0
-#define BLOCKING 0x1
+void beiscsi_iface_destroy_default(struct beiscsi_hba *phba);
-void beiscsi_create_def_ifaces(struct beiscsi_hba *phba);
-
-void beiscsi_destroy_def_ifaces(struct beiscsi_hba *phba);
-
-int be2iscsi_iface_get_param(struct iscsi_iface *iface,
+int beiscsi_iface_get_param(struct iscsi_iface *iface,
enum iscsi_param_type param_type,
int param, char *buf);
-int be2iscsi_iface_set_param(struct Scsi_Host *shost,
+int beiscsi_iface_set_param(struct Scsi_Host *shost,
void *data, uint32_t count);
-umode_t be2iscsi_attr_is_visible(int param_type, int param);
+umode_t beiscsi_attr_is_visible(int param_type, int param);
void beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
struct beiscsi_offload_params *params);
void beiscsi_session_destroy(struct iscsi_cls_session *cls_session);
+void beiscsi_session_fail(struct iscsi_cls_session *cls_session);
+
struct iscsi_cls_conn *beiscsi_conn_create(struct iscsi_cls_session
*cls_session, uint32_t cid);
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
return iscsi_eh_device_reset(sc);
}
-static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf)
-{
- struct beiscsi_hba *phba = data;
- struct mgmt_session_info *boot_sess = &phba->boot_sess;
- struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0];
- char *str = buf;
- int rc;
-
- switch (type) {
- case ISCSI_BOOT_TGT_NAME:
- rc = sprintf(buf, "%.*s\n",
- (int)strlen(boot_sess->target_name),
- (char *)&boot_sess->target_name);
- break;
- case ISCSI_BOOT_TGT_IP_ADDR:
- if (boot_conn->dest_ipaddr.ip_type == 0x1)
- rc = sprintf(buf, "%pI4\n",
- (char *)&boot_conn->dest_ipaddr.addr);
- else
- rc = sprintf(str, "%pI6\n",
- (char *)&boot_conn->dest_ipaddr.addr);
- break;
- case ISCSI_BOOT_TGT_PORT:
- rc = sprintf(str, "%d\n", boot_conn->dest_port);
- break;
-
- case ISCSI_BOOT_TGT_CHAP_NAME:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- target_chap_name_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.target_chap_name);
- break;
- case ISCSI_BOOT_TGT_CHAP_SECRET:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- target_secret_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.target_secret);
- break;
- case ISCSI_BOOT_TGT_REV_CHAP_NAME:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- intr_chap_name_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.intr_chap_name);
- break;
- case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- intr_secret_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.intr_secret);
- break;
- case ISCSI_BOOT_TGT_FLAGS:
- rc = sprintf(str, "2\n");
- break;
- case ISCSI_BOOT_TGT_NIC_ASSOC:
- rc = sprintf(str, "0\n");
- break;
- default:
- rc = -ENOSYS;
- break;
- }
- return rc;
-}
-
-static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf)
-{
- struct beiscsi_hba *phba = data;
- char *str = buf;
- int rc;
-
- switch (type) {
- case ISCSI_BOOT_INI_INITIATOR_NAME:
- rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname);
- break;
- default:
- rc = -ENOSYS;
- break;
- }
- return rc;
-}
-
-static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf)
-{
- struct beiscsi_hba *phba = data;
- char *str = buf;
- int rc;
-
- switch (type) {
- case ISCSI_BOOT_ETH_FLAGS:
- rc = sprintf(str, "2\n");
- break;
- case ISCSI_BOOT_ETH_INDEX:
- rc = sprintf(str, "0\n");
- break;
- case ISCSI_BOOT_ETH_MAC:
- rc = beiscsi_get_macaddr(str, phba);
- break;
- default:
- rc = -ENOSYS;
- break;
- }
- return rc;
-}
-
-
-static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
-{
- umode_t rc;
-
- switch (type) {
- case ISCSI_BOOT_TGT_NAME:
- case ISCSI_BOOT_TGT_IP_ADDR:
- case ISCSI_BOOT_TGT_PORT:
- case ISCSI_BOOT_TGT_CHAP_NAME:
- case ISCSI_BOOT_TGT_CHAP_SECRET:
- case ISCSI_BOOT_TGT_REV_CHAP_NAME:
- case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
- case ISCSI_BOOT_TGT_NIC_ASSOC:
- case ISCSI_BOOT_TGT_FLAGS:
- rc = S_IRUGO;
- break;
- default:
- rc = 0;
- break;
- }
- return rc;
-}
-
-static umode_t beiscsi_ini_get_attr_visibility(void *data, int type)
-{
- umode_t rc;
-
- switch (type) {
- case ISCSI_BOOT_INI_INITIATOR_NAME:
- rc = S_IRUGO;
- break;
- default:
- rc = 0;
- break;
- }
- return rc;
-}
-
-
-static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
-{
- umode_t rc;
-
- switch (type) {
- case ISCSI_BOOT_ETH_FLAGS:
- case ISCSI_BOOT_ETH_MAC:
- case ISCSI_BOOT_ETH_INDEX:
- rc = S_IRUGO;
- break;
- default:
- rc = 0;
- break;
- }
- return rc;
-}
-
/*------------------- PCI Driver operations and data ----------------- */
static const struct pci_device_id beiscsi_pci_id_table[] = {
{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
static irqreturn_t be_isr_mcc(int irq, void *dev_id)
{
struct beiscsi_hba *phba;
- struct be_eq_entry *eqe = NULL;
+ struct be_eq_entry *eqe;
struct be_queue_info *eq;
struct be_queue_info *mcc;
- unsigned int num_eq_processed;
+ unsigned int mcc_events;
struct be_eq_obj *pbe_eq;
- unsigned long flags;
pbe_eq = dev_id;
eq = &pbe_eq->q;
mcc = &phba->ctrl.mcc_obj.cq;
eqe = queue_tail_node(eq);
- num_eq_processed = 0;
-
+ mcc_events = 0;
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (((eqe->dw[offsetof(struct amap_eq_entry,
resource_id) / 32] &
EQE_RESID_MASK) >> 16) == mcc->id) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_mcc_cq = true;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
+ mcc_events++;
}
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
- num_eq_processed++;
}
- if (pbe_eq->todo_mcc_cq)
- queue_work(phba->wq, &pbe_eq->work_cqs);
- if (num_eq_processed)
- hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1);
+ if (mcc_events) {
+ queue_work(phba->wq, &pbe_eq->mcc_work);
+ hwi_ring_eq_db(phba, eq->id, 1, mcc_events, 1, 1);
+ }
return IRQ_HANDLED;
}
eq = &pbe_eq->q;
phba = pbe_eq->phba;
-
/* disable interrupt till iopoll completes */
hwi_ring_eq_db(phba, eq->id, 1, 0, 0, 1);
irq_poll_sched(&pbe_eq->iopoll);
struct beiscsi_hba *phba;
struct hwi_controller *phwi_ctrlr;
struct hwi_context_memory *phwi_context;
- struct be_eq_entry *eqe = NULL;
+ struct be_eq_entry *eqe;
struct be_queue_info *eq;
struct be_queue_info *mcc;
- unsigned long flags, index;
- unsigned int num_mcceq_processed, num_ioeq_processed;
+ unsigned int mcc_events, io_events;
struct be_ctrl_info *ctrl;
struct be_eq_obj *pbe_eq;
- int isr;
+ int isr, rearm;
phba = dev_id;
ctrl = &phba->ctrl;
eq = &phwi_context->be_eq[0].q;
mcc = &phba->ctrl.mcc_obj.cq;
- index = 0;
eqe = queue_tail_node(eq);
- num_ioeq_processed = 0;
- num_mcceq_processed = 0;
+ io_events = 0;
+ mcc_events = 0;
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (((eqe->dw[offsetof(struct amap_eq_entry,
- resource_id) / 32] &
- EQE_RESID_MASK) >> 16) == mcc->id) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_mcc_cq = true;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- num_mcceq_processed++;
- } else {
- irq_poll_sched(&pbe_eq->iopoll);
- num_ioeq_processed++;
- }
+ resource_id) / 32] & EQE_RESID_MASK) >> 16) == mcc->id)
+ mcc_events++;
+ else
+ io_events++;
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
}
- if (num_ioeq_processed || num_mcceq_processed) {
- if (pbe_eq->todo_mcc_cq)
- queue_work(phba->wq, &pbe_eq->work_cqs);
-
- if ((num_mcceq_processed) && (!num_ioeq_processed))
- hwi_ring_eq_db(phba, eq->id, 0,
- (num_ioeq_processed +
- num_mcceq_processed) , 1, 1);
- else
- hwi_ring_eq_db(phba, eq->id, 0,
- (num_ioeq_processed +
- num_mcceq_processed), 0, 1);
-
- return IRQ_HANDLED;
- } else
+ if (!io_events && !mcc_events)
return IRQ_NONE;
+
+ /* no need to rearm if interrupt is only for IOs */
+ rearm = 0;
+ if (mcc_events) {
+ queue_work(phba->wq, &pbe_eq->mcc_work);
+ /* rearm for MCCQ */
+ rearm = 1;
+ }
+ if (io_events)
+ irq_poll_sched(&pbe_eq->iopoll);
+ hwi_ring_eq_db(phba, eq->id, 0, (io_events + mcc_events), rearm, 1);
+ return IRQ_HANDLED;
}
iowrite32(val, phba->db_va + DB_CQ_OFFSET);
}
-static unsigned int
-beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct pdu_base *ppdu,
- unsigned long pdu_len,
- void *pbuffer, unsigned long buf_len)
-{
- struct iscsi_conn *conn = beiscsi_conn->conn;
- struct iscsi_session *session = conn->session;
- struct iscsi_task *task;
- struct beiscsi_io_task *io_task;
- struct iscsi_hdr *login_hdr;
-
- switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
- PDUBASE_OPCODE_MASK) {
- case ISCSI_OP_NOOP_IN:
- pbuffer = NULL;
- buf_len = 0;
- break;
- case ISCSI_OP_ASYNC_EVENT:
- break;
- case ISCSI_OP_REJECT:
- WARN_ON(!pbuffer);
- WARN_ON(!(buf_len == 48));
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : In ISCSI_OP_REJECT\n");
- break;
- case ISCSI_OP_LOGIN_RSP:
- case ISCSI_OP_TEXT_RSP:
- task = conn->login_task;
- io_task = task->dd_data;
- login_hdr = (struct iscsi_hdr *)ppdu;
- login_hdr->itt = io_task->libiscsi_itt;
- break;
- default:
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Unrecognized opcode 0x%x in async msg\n",
- (ppdu->
- dw[offsetof(struct amap_pdu_base, opcode) / 32]
- & PDUBASE_OPCODE_MASK));
- return 1;
- }
-
- spin_lock_bh(&session->back_lock);
- __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len);
- spin_unlock_bh(&session->back_lock);
- return 0;
-}
-
static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
{
struct sgl_handle *psgl_handle;
pwrb_context->alloc_index++;
spin_unlock_bh(&pwrb_context->wrb_lock);
+ if (pwrb_handle)
+ memset(pwrb_handle->pwrb, 0, sizeof(*pwrb_handle->pwrb));
+
return pwrb_handle;
}
struct beiscsi_hba *phba, struct sol_cqe *psol)
{
struct hwi_wrb_context *pwrb_context;
- struct wrb_handle *pwrb_handle = NULL;
+ uint16_t wrb_index, cid, cri_index;
struct hwi_controller *phwi_ctrlr;
+ struct wrb_handle *pwrb_handle;
struct iscsi_task *task;
- struct beiscsi_io_task *io_task;
- uint16_t wrb_index, cid, cri_index;
phwi_ctrlr = phba->phwi_ctrlr;
if (is_chip_be2_be3r(phba)) {
pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index];
task = pwrb_handle->pio_handle;
-
- io_task = task->dd_data;
- memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb));
iscsi_put_task(task);
}
spin_unlock_bh(&session->back_lock);
}
-static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context
- *pasync_ctx, unsigned int is_header,
- unsigned int host_write_ptr)
+/**
+ * ASYNC PDUs include
+ * a. Unsolicited NOP-In (target initiated NOP-In)
+ * b. ASYNC Messages
+ * c. Reject PDU
+ * d. Login response
+ * These headers arrive unprocessed by the EP firmware.
+ * iSCSI layer processes them.
+ */
+static unsigned int
+beiscsi_complete_pdu(struct beiscsi_conn *beiscsi_conn,
+ struct pdu_base *phdr, void *pdata, unsigned int dlen)
{
- if (is_header)
- return &pasync_ctx->async_entry[host_write_ptr].
- header_busy_list;
- else
- return &pasync_ctx->async_entry[host_write_ptr].data_busy_list;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct beiscsi_io_task *io_task;
+ struct iscsi_hdr *login_hdr;
+ struct iscsi_task *task;
+ u8 code;
+
+ code = AMAP_GET_BITS(struct amap_pdu_base, opcode, phdr);
+ switch (code) {
+ case ISCSI_OP_NOOP_IN:
+ pdata = NULL;
+ dlen = 0;
+ break;
+ case ISCSI_OP_ASYNC_EVENT:
+ break;
+ case ISCSI_OP_REJECT:
+ WARN_ON(!pdata);
+ WARN_ON(!(dlen == 48));
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : In ISCSI_OP_REJECT\n");
+ break;
+ case ISCSI_OP_LOGIN_RSP:
+ case ISCSI_OP_TEXT_RSP:
+ task = conn->login_task;
+ io_task = task->dd_data;
+ login_hdr = (struct iscsi_hdr *)phdr;
+ login_hdr->itt = io_task->libiscsi_itt;
+ break;
+ default:
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : unrecognized async PDU opcode 0x%x\n",
+ code);
+ return 1;
+ }
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)phdr, pdata, dlen);
+ return 0;
+}
+
+static inline void
+beiscsi_hdl_put_handle(struct hd_async_context *pasync_ctx,
+ struct hd_async_handle *pasync_handle)
+{
+ if (pasync_handle->is_header) {
+ list_add_tail(&pasync_handle->link,
+ &pasync_ctx->async_header.free_list);
+ pasync_ctx->async_header.free_entries++;
+ } else {
+ list_add_tail(&pasync_handle->link,
+ &pasync_ctx->async_data.free_list);
+ pasync_ctx->async_data.free_entries++;
+ }
}
-static struct async_pdu_handle *
-hwi_get_async_handle(struct beiscsi_hba *phba,
- struct beiscsi_conn *beiscsi_conn,
- struct hwi_async_pdu_context *pasync_ctx,
- struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index)
+static struct hd_async_handle *
+beiscsi_hdl_get_handle(struct beiscsi_conn *beiscsi_conn,
+ struct hd_async_context *pasync_ctx,
+ struct i_t_dpdu_cqe *pdpdu_cqe)
{
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct hd_async_handle *pasync_handle;
struct be_bus_address phys_addr;
- struct list_head *pbusy_list;
- struct async_pdu_handle *pasync_handle = NULL;
- unsigned char is_header = 0;
- unsigned int index, dpl;
+ u8 final, error = 0;
+ u16 cid, code, ci;
+ u32 dpl;
+ cid = beiscsi_conn->beiscsi_conn_cid;
+ /**
+ * This function is invoked to get the right async_handle structure
+ * from a given DEF PDU CQ entry.
+ *
+ * - index in CQ entry gives the vertical index
+ * - address in CQ entry is the offset where the DMA last ended
+ * - final - no more notifications for this PDU
+ */
if (is_chip_be2_be3r(phba)) {
dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
dpl, pdpdu_cqe);
- index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ ci = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
index, pdpdu_cqe);
+ final = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ final, pdpdu_cqe);
} else {
dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
dpl, pdpdu_cqe);
- index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
+ ci = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
index, pdpdu_cqe);
+ final = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
+ final, pdpdu_cqe);
}
- phys_addr.u.a32.address_lo =
- (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
- db_addr_lo) / 32] - dpl);
- phys_addr.u.a32.address_hi =
- pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
- db_addr_hi) / 32];
-
- phys_addr.u.a64.address =
- *((unsigned long long *)(&phys_addr.u.a64.address));
-
- switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32]
- & PDUCQE_CODE_MASK) {
+ /**
+ * DB addr Hi/Lo is same for BE and SKH.
+ * Subtract the dataplacementlength to get to the base.
+ */
+ phys_addr.u.a32.address_lo = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ db_addr_lo, pdpdu_cqe);
+ phys_addr.u.a32.address_lo -= dpl;
+ phys_addr.u.a32.address_hi = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ db_addr_hi, pdpdu_cqe);
+
+ code = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe, code, pdpdu_cqe);
+ switch (code) {
case UNSOL_HDR_NOTIFY:
- is_header = 1;
-
- pbusy_list = hwi_get_async_busy_list(pasync_ctx,
- is_header, index);
+ pasync_handle = pasync_ctx->async_entry[ci].header;
break;
+ case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
+ error = 1;
case UNSOL_DATA_NOTIFY:
- pbusy_list = hwi_get_async_busy_list(pasync_ctx,
- is_header, index);
+ pasync_handle = pasync_ctx->async_entry[ci].data;
break;
+ /* called only for above codes */
default:
- pbusy_list = NULL;
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Unexpected code=%d\n",
- pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
- code) / 32] & PDUCQE_CODE_MASK);
- return NULL;
+ pasync_handle = NULL;
+ break;
}
- WARN_ON(list_empty(pbusy_list));
- list_for_each_entry(pasync_handle, pbusy_list, link) {
- if (pasync_handle->pa.u.a64.address == phys_addr.u.a64.address)
- break;
+ if (!pasync_handle) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %d async PDU handle not found - code %d ci %d addr %llx\n",
+ cid, code, ci, phys_addr.u.a64.address);
+ return pasync_handle;
}
- WARN_ON(!pasync_handle);
+ if (pasync_handle->pa.u.a64.address != phys_addr.u.a64.address ||
+ pasync_handle->index != ci) {
+ /* driver bug - if ci does not match async handle index */
+ error = 1;
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %u async PDU handle mismatch - addr in %cQE %llx at %u:addr in CQE %llx ci %u\n",
+ cid, pasync_handle->is_header ? 'H' : 'D',
+ pasync_handle->pa.u.a64.address,
+ pasync_handle->index,
+ phys_addr.u.a64.address, ci);
+ /* FW has stale address - attempt continuing by dropping */
+ }
- pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- pasync_handle->is_header = is_header;
+ /**
+ * Each CID is associated with unique CRI.
+ * ASYNC_CRI_FROM_CID mapping and CRI_FROM_CID are totaly different.
+ **/
+ pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID(cid);
+ pasync_handle->is_final = final;
pasync_handle->buffer_len = dpl;
- *pcq_index = index;
+ /* empty the slot */
+ if (pasync_handle->is_header)
+ pasync_ctx->async_entry[ci].header = NULL;
+ else
+ pasync_ctx->async_entry[ci].data = NULL;
+ /**
+ * DEF PDU header and data buffers with errors should be simply
+ * dropped as there are no consumers for it.
+ */
+ if (error) {
+ beiscsi_hdl_put_handle(pasync_ctx, pasync_handle);
+ pasync_handle = NULL;
+ }
return pasync_handle;
}
-static unsigned int
-hwi_update_async_writables(struct beiscsi_hba *phba,
- struct hwi_async_pdu_context *pasync_ctx,
- unsigned int is_header, unsigned int cq_index)
+static void
+beiscsi_hdl_purge_handles(struct beiscsi_hba *phba,
+ struct hd_async_context *pasync_ctx,
+ u16 cri)
{
- struct list_head *pbusy_list;
- struct async_pdu_handle *pasync_handle;
- unsigned int num_entries, writables = 0;
- unsigned int *pep_read_ptr, *pwritables;
-
- num_entries = pasync_ctx->num_entries;
- if (is_header) {
- pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
- pwritables = &pasync_ctx->async_header.writables;
- } else {
- pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
- pwritables = &pasync_ctx->async_data.writables;
- }
-
- while ((*pep_read_ptr) != cq_index) {
- (*pep_read_ptr)++;
- *pep_read_ptr = (*pep_read_ptr) % num_entries;
-
- pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header,
- *pep_read_ptr);
- if (writables == 0)
- WARN_ON(list_empty(pbusy_list));
-
- if (!list_empty(pbusy_list)) {
- pasync_handle = list_entry(pbusy_list->next,
- struct async_pdu_handle,
- link);
- WARN_ON(!pasync_handle);
- pasync_handle->consumed = 1;
- }
-
- writables++;
- }
+ struct hd_async_handle *pasync_handle, *tmp_handle;
+ struct list_head *plist;
- if (!writables) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : Duplicate notification received - index 0x%x!!\n",
- cq_index);
- WARN_ON(1);
+ plist = &pasync_ctx->async_entry[cri].wq.list;
+ list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
+ list_del(&pasync_handle->link);
+ beiscsi_hdl_put_handle(pasync_ctx, pasync_handle);
}
- *pwritables = *pwritables + writables;
- return 0;
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wq.list);
+ pasync_ctx->async_entry[cri].wq.hdr_len = 0;
+ pasync_ctx->async_entry[cri].wq.bytes_received = 0;
+ pasync_ctx->async_entry[cri].wq.bytes_needed = 0;
}
-static void hwi_free_async_msg(struct beiscsi_hba *phba,
- struct hwi_async_pdu_context *pasync_ctx,
- unsigned int cri)
+static unsigned int
+beiscsi_hdl_fwd_pdu(struct beiscsi_conn *beiscsi_conn,
+ struct hd_async_context *pasync_ctx,
+ u16 cri)
{
- struct async_pdu_handle *pasync_handle, *tmp_handle;
+ struct iscsi_session *session = beiscsi_conn->conn->session;
+ struct hd_async_handle *pasync_handle, *plast_handle;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ void *phdr = NULL, *pdata = NULL;
+ u32 dlen = 0, status = 0;
struct list_head *plist;
- plist = &pasync_ctx->async_entry[cri].wait_queue.list;
- list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
- list_del(&pasync_handle->link);
-
- if (pasync_handle->is_header) {
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_header.free_list);
- pasync_ctx->async_header.free_entries++;
- } else {
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_data.free_list);
- pasync_ctx->async_data.free_entries++;
+ plist = &pasync_ctx->async_entry[cri].wq.list;
+ plast_handle = NULL;
+ list_for_each_entry(pasync_handle, plist, link) {
+ plast_handle = pasync_handle;
+ /* get the header, the first entry */
+ if (!phdr) {
+ phdr = pasync_handle->pbuffer;
+ continue;
}
+ /* use first buffer to collect all the data */
+ if (!pdata) {
+ pdata = pasync_handle->pbuffer;
+ dlen = pasync_handle->buffer_len;
+ continue;
+ }
+ memcpy(pdata + dlen, pasync_handle->pbuffer,
+ pasync_handle->buffer_len);
+ dlen += pasync_handle->buffer_len;
}
- INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list);
- pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0;
- pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
+ if (!plast_handle->is_final) {
+ /* last handle should have final PDU notification from FW */
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %u %p fwd async PDU with last handle missing - HL%u:DN%u:DR%u\n",
+ beiscsi_conn->beiscsi_conn_cid, plast_handle,
+ pasync_ctx->async_entry[cri].wq.hdr_len,
+ pasync_ctx->async_entry[cri].wq.bytes_needed,
+ pasync_ctx->async_entry[cri].wq.bytes_received);
+ }
+ spin_lock_bh(&session->back_lock);
+ status = beiscsi_complete_pdu(beiscsi_conn, phdr, pdata, dlen);
+ spin_unlock_bh(&session->back_lock);
+ beiscsi_hdl_purge_handles(phba, pasync_ctx, cri);
+ return status;
}
-static struct phys_addr *
-hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
- unsigned int is_header, unsigned int host_write_ptr)
+static unsigned int
+beiscsi_hdl_gather_pdu(struct beiscsi_conn *beiscsi_conn,
+ struct hd_async_context *pasync_ctx,
+ struct hd_async_handle *pasync_handle)
{
- struct phys_addr *pasync_sge = NULL;
+ unsigned int bytes_needed = 0, status = 0;
+ u16 cri = pasync_handle->cri;
+ struct cri_wait_queue *wq;
+ struct beiscsi_hba *phba;
+ struct pdu_base *ppdu;
+ char *err = "";
- if (is_header)
- pasync_sge = pasync_ctx->async_header.ring_base;
- else
- pasync_sge = pasync_ctx->async_data.ring_base;
+ phba = beiscsi_conn->phba;
+ wq = &pasync_ctx->async_entry[cri].wq;
+ if (pasync_handle->is_header) {
+ /* check if PDU hdr is rcv'd when old hdr not completed */
+ if (wq->hdr_len) {
+ err = "incomplete";
+ goto drop_pdu;
+ }
+ ppdu = pasync_handle->pbuffer;
+ bytes_needed = AMAP_GET_BITS(struct amap_pdu_base,
+ data_len_hi, ppdu);
+ bytes_needed <<= 16;
+ bytes_needed |= be16_to_cpu(AMAP_GET_BITS(struct amap_pdu_base,
+ data_len_lo, ppdu));
+ wq->hdr_len = pasync_handle->buffer_len;
+ wq->bytes_received = 0;
+ wq->bytes_needed = bytes_needed;
+ list_add_tail(&pasync_handle->link, &wq->list);
+ if (!bytes_needed)
+ status = beiscsi_hdl_fwd_pdu(beiscsi_conn,
+ pasync_ctx, cri);
+ } else {
+ /* check if data received has header and is needed */
+ if (!wq->hdr_len || !wq->bytes_needed) {
+ err = "header less";
+ goto drop_pdu;
+ }
+ wq->bytes_received += pasync_handle->buffer_len;
+ /* Something got overwritten? Better catch it here. */
+ if (wq->bytes_received > wq->bytes_needed) {
+ err = "overflow";
+ goto drop_pdu;
+ }
+ list_add_tail(&pasync_handle->link, &wq->list);
+ if (wq->bytes_received == wq->bytes_needed)
+ status = beiscsi_hdl_fwd_pdu(beiscsi_conn,
+ pasync_ctx, cri);
+ }
+ return status;
- return pasync_sge + host_write_ptr;
+drop_pdu:
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %u async PDU %s - def-%c:HL%u:DN%u:DR%u\n",
+ beiscsi_conn->beiscsi_conn_cid, err,
+ pasync_handle->is_header ? 'H' : 'D',
+ wq->hdr_len, wq->bytes_needed,
+ pasync_handle->buffer_len);
+ /* discard this handle */
+ beiscsi_hdl_put_handle(pasync_ctx, pasync_handle);
+ /* free all the other handles in cri_wait_queue */
+ beiscsi_hdl_purge_handles(phba, pasync_ctx, cri);
+ /* try continuing */
+ return status;
}
-static void hwi_post_async_buffers(struct beiscsi_hba *phba,
- unsigned int is_header, uint8_t ulp_num)
+static void
+beiscsi_hdq_post_handles(struct beiscsi_hba *phba,
+ u8 header, u8 ulp_num)
{
+ struct hd_async_handle *pasync_handle, *tmp, **slot;
+ struct hd_async_context *pasync_ctx;
struct hwi_controller *phwi_ctrlr;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_handle;
- struct list_head *pfree_link, *pbusy_list;
+ struct list_head *hfree_list;
struct phys_addr *pasync_sge;
- unsigned int ring_id, num_entries;
- unsigned int host_write_num, doorbell_offset;
- unsigned int writables;
- unsigned int i = 0;
- u32 doorbell = 0;
+ u32 ring_id, doorbell = 0;
+ u16 index, num_entries;
+ u32 doorbell_offset;
+ u16 prod = 0, cons;
phwi_ctrlr = phba->phwi_ctrlr;
pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
num_entries = pasync_ctx->num_entries;
-
- if (is_header) {
- writables = min(pasync_ctx->async_header.writables,
- pasync_ctx->async_header.free_entries);
- pfree_link = pasync_ctx->async_header.free_list.next;
- host_write_num = pasync_ctx->async_header.host_write_ptr;
+ if (header) {
+ cons = pasync_ctx->async_header.free_entries;
+ hfree_list = &pasync_ctx->async_header.free_list;
ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id;
doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num].
- doorbell_offset;
+ doorbell_offset;
} else {
- writables = min(pasync_ctx->async_data.writables,
- pasync_ctx->async_data.free_entries);
- pfree_link = pasync_ctx->async_data.free_list.next;
- host_write_num = pasync_ctx->async_data.host_write_ptr;
+ cons = pasync_ctx->async_data.free_entries;
+ hfree_list = &pasync_ctx->async_data.free_list;
ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id;
doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num].
- doorbell_offset;
+ doorbell_offset;
}
+ /* number of entries posted must be in multiples of 8 */
+ if (cons % 8)
+ return;
- writables = (writables / 8) * 8;
- if (writables) {
- for (i = 0; i < writables; i++) {
- pbusy_list =
- hwi_get_async_busy_list(pasync_ctx, is_header,
- host_write_num);
- pasync_handle =
- list_entry(pfree_link, struct async_pdu_handle,
- link);
- WARN_ON(!pasync_handle);
- pasync_handle->consumed = 0;
-
- pfree_link = pfree_link->next;
-
- pasync_sge = hwi_get_ring_address(pasync_ctx,
- is_header, host_write_num);
-
- pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
- pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
-
- list_move(&pasync_handle->link, pbusy_list);
-
- host_write_num++;
- host_write_num = host_write_num % num_entries;
- }
-
- if (is_header) {
- pasync_ctx->async_header.host_write_ptr =
- host_write_num;
- pasync_ctx->async_header.free_entries -= writables;
- pasync_ctx->async_header.writables -= writables;
- pasync_ctx->async_header.busy_entries += writables;
- } else {
- pasync_ctx->async_data.host_write_ptr = host_write_num;
- pasync_ctx->async_data.free_entries -= writables;
- pasync_ctx->async_data.writables -= writables;
- pasync_ctx->async_data.busy_entries += writables;
- }
-
- doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
- doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
- doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
- doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
- << DB_DEF_PDU_CQPROC_SHIFT;
-
- iowrite32(doorbell, phba->db_va + doorbell_offset);
- }
-}
-
-static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
- struct beiscsi_conn *beiscsi_conn,
- struct i_t_dpdu_cqe *pdpdu_cqe)
-{
- struct hwi_controller *phwi_ctrlr;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_handle = NULL;
- unsigned int cq_index = -1;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
-
- phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- cri_index));
-
- pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
- pdpdu_cqe, &cq_index);
- BUG_ON(pasync_handle->is_header != 0);
- if (pasync_handle->consumed == 0)
- hwi_update_async_writables(phba, pasync_ctx,
- pasync_handle->is_header, cq_index);
-
- hwi_free_async_msg(phba, pasync_ctx, pasync_handle->cri);
- hwi_post_async_buffers(phba, pasync_handle->is_header,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- cri_index));
-}
-
-static unsigned int
-hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct hwi_async_pdu_context *pasync_ctx, unsigned short cri)
-{
- struct list_head *plist;
- struct async_pdu_handle *pasync_handle;
- void *phdr = NULL;
- unsigned int hdr_len = 0, buf_len = 0;
- unsigned int status, index = 0, offset = 0;
- void *pfirst_buffer = NULL;
- unsigned int num_buf = 0;
-
- plist = &pasync_ctx->async_entry[cri].wait_queue.list;
+ list_for_each_entry_safe(pasync_handle, tmp, hfree_list, link) {
+ list_del_init(&pasync_handle->link);
+ pasync_handle->is_final = 0;
+ pasync_handle->buffer_len = 0;
- list_for_each_entry(pasync_handle, plist, link) {
- if (index == 0) {
- phdr = pasync_handle->pbuffer;
- hdr_len = pasync_handle->buffer_len;
- } else {
- buf_len = pasync_handle->buffer_len;
- if (!num_buf) {
- pfirst_buffer = pasync_handle->pbuffer;
- num_buf++;
- }
- memcpy(pfirst_buffer + offset,
- pasync_handle->pbuffer, buf_len);
- offset += buf_len;
+ /* handles can be consumed out of order, use index in handle */
+ index = pasync_handle->index;
+ WARN_ON(pasync_handle->is_header != header);
+ if (header)
+ slot = &pasync_ctx->async_entry[index].header;
+ else
+ slot = &pasync_ctx->async_entry[index].data;
+ /**
+ * The slot just tracks handle's hold and release, so
+ * overwriting at the same index won't do any harm but
+ * needs to be caught.
+ */
+ if (*slot != NULL) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : async PDU %s slot at %u not empty\n",
+ header ? "header" : "data", index);
}
- index++;
+ /**
+ * We use same freed index as in completion to post so this
+ * operation is not required for refills. Its required only
+ * for ring creation.
+ */
+ if (header)
+ pasync_sge = pasync_ctx->async_header.ring_base;
+ else
+ pasync_sge = pasync_ctx->async_data.ring_base;
+ pasync_sge += index;
+ /* if its a refill then address is same; hi is lo */
+ WARN_ON(pasync_sge->hi &&
+ pasync_sge->hi != pasync_handle->pa.u.a32.address_lo);
+ WARN_ON(pasync_sge->lo &&
+ pasync_sge->lo != pasync_handle->pa.u.a32.address_hi);
+ pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
+ pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
+
+ *slot = pasync_handle;
+ if (++prod == cons)
+ break;
}
+ if (header)
+ pasync_ctx->async_header.free_entries -= prod;
+ else
+ pasync_ctx->async_data.free_entries -= prod;
- status = beiscsi_process_async_pdu(beiscsi_conn, phba,
- phdr, hdr_len, pfirst_buffer,
- offset);
-
- hwi_free_async_msg(phba, pasync_ctx, cri);
- return 0;
-}
-
-static unsigned int
-hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct async_pdu_handle *pasync_handle)
-{
- struct hwi_async_pdu_context *pasync_ctx;
- struct hwi_controller *phwi_ctrlr;
- unsigned int bytes_needed = 0, status = 0;
- unsigned short cri = pasync_handle->cri;
- struct pdu_base *ppdu;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- BE_GET_CRI_FROM_CID(beiscsi_conn->
- beiscsi_conn_cid)));
-
- list_del(&pasync_handle->link);
- if (pasync_handle->is_header) {
- pasync_ctx->async_header.busy_entries--;
- if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
- hwi_free_async_msg(phba, pasync_ctx, cri);
- BUG();
- }
-
- pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
- pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1;
- pasync_ctx->async_entry[cri].wait_queue.hdr_len =
- (unsigned short)pasync_handle->buffer_len;
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_entry[cri].wait_queue.list);
-
- ppdu = pasync_handle->pbuffer;
- bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base,
- data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) &
- 0xFFFF0000) | ((be16_to_cpu((ppdu->
- dw[offsetof(struct amap_pdu_base, data_len_lo) / 32]
- & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF));
-
- if (status == 0) {
- pasync_ctx->async_entry[cri].wait_queue.bytes_needed =
- bytes_needed;
-
- if (bytes_needed == 0)
- status = hwi_fwd_async_msg(beiscsi_conn, phba,
- pasync_ctx, cri);
- }
- } else {
- pasync_ctx->async_data.busy_entries--;
- if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_entry[cri].wait_queue.
- list);
- pasync_ctx->async_entry[cri].wait_queue.
- bytes_received +=
- (unsigned short)pasync_handle->buffer_len;
-
- if (pasync_ctx->async_entry[cri].wait_queue.
- bytes_received >=
- pasync_ctx->async_entry[cri].wait_queue.
- bytes_needed)
- status = hwi_fwd_async_msg(beiscsi_conn, phba,
- pasync_ctx, cri);
- }
- }
- return status;
+ doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
+ doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
+ doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
+ doorbell |= (prod & DB_DEF_PDU_CQPROC_MASK) << DB_DEF_PDU_CQPROC_SHIFT;
+ iowrite32(doorbell, phba->db_va + doorbell_offset);
}
-static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct i_t_dpdu_cqe *pdpdu_cqe)
+static void
+beiscsi_hdq_process_compl(struct beiscsi_conn *beiscsi_conn,
+ struct i_t_dpdu_cqe *pdpdu_cqe)
{
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct hd_async_handle *pasync_handle = NULL;
+ struct hd_async_context *pasync_ctx;
struct hwi_controller *phwi_ctrlr;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_handle = NULL;
- unsigned int cq_index = -1;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
+ u16 cid_cri;
+ u8 ulp_num;
phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- cri_index));
-
- pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
- pdpdu_cqe, &cq_index);
-
- if (pasync_handle->consumed == 0)
- hwi_update_async_writables(phba, pasync_ctx,
- pasync_handle->is_header, cq_index);
+ cid_cri = BE_GET_CRI_FROM_CID(beiscsi_conn->beiscsi_conn_cid);
+ ulp_num = BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cid_cri);
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
+ pasync_handle = beiscsi_hdl_get_handle(beiscsi_conn, pasync_ctx,
+ pdpdu_cqe);
+ if (!pasync_handle)
+ return;
- hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
- hwi_post_async_buffers(phba, pasync_handle->is_header,
- BEISCSI_GET_ULP_FROM_CRI(
- phwi_ctrlr, cri_index));
+ beiscsi_hdl_gather_pdu(beiscsi_conn, pasync_ctx, pasync_handle);
+ beiscsi_hdq_post_handles(phba, pasync_handle->is_header, ulp_num);
}
void beiscsi_process_mcc_cq(struct beiscsi_hba *phba)
mcc_compl = queue_tail_node(mcc_cq);
mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) {
+ if (beiscsi_hba_in_error(phba))
+ return;
+
if (num_processed >= 32) {
hwi_ring_cq_db(phba, mcc_cq->id,
num_processed, 0);
hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1);
}
+static void beiscsi_mcc_work(struct work_struct *work)
+{
+ struct be_eq_obj *pbe_eq;
+ struct beiscsi_hba *phba;
+
+ pbe_eq = container_of(work, struct be_eq_obj, mcc_work);
+ phba = pbe_eq->phba;
+ beiscsi_process_mcc_cq(phba);
+ /* rearm EQ for further interrupts */
+ if (!beiscsi_hba_in_error(phba))
+ hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
+}
+
/**
* beiscsi_process_cq()- Process the Completion Queue
* @pbe_eq: Event Q on which the Completion has come
while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
CQE_VALID_MASK) {
+ if (beiscsi_hba_in_error(phba))
+ return 0;
+
be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
code = (sol->dw[offsetof(struct amap_sol_cqe, code) /
cqe_desc[code], code, cid);
spin_lock_bh(&phba->async_pdu_lock);
- hwi_process_default_pdu_ring(beiscsi_conn, phba,
- (struct i_t_dpdu_cqe *)sol);
+ beiscsi_hdq_process_compl(beiscsi_conn,
+ (struct i_t_dpdu_cqe *)sol);
spin_unlock_bh(&phba->async_pdu_lock);
break;
case UNSOL_DATA_NOTIFY:
cqe_desc[code], code, cid);
spin_lock_bh(&phba->async_pdu_lock);
- hwi_process_default_pdu_ring(beiscsi_conn, phba,
- (struct i_t_dpdu_cqe *)sol);
+ beiscsi_hdq_process_compl(beiscsi_conn,
+ (struct i_t_dpdu_cqe *)sol);
spin_unlock_bh(&phba->async_pdu_lock);
break;
case CXN_INVALIDATE_INDEX_NOTIFY:
"BM_%d : Dropping %s[%d] on DPDU ring on CID : %d\n",
cqe_desc[code], code, cid);
spin_lock_bh(&phba->async_pdu_lock);
- hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
- (struct i_t_dpdu_cqe *) sol);
+ /* driver consumes the entry and drops the contents */
+ beiscsi_hdq_process_compl(beiscsi_conn,
+ (struct i_t_dpdu_cqe *)sol);
spin_unlock_bh(&phba->async_pdu_lock);
break;
case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
return total;
}
-void beiscsi_process_all_cqs(struct work_struct *work)
-{
- unsigned long flags;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct beiscsi_hba *phba;
- struct be_eq_obj *pbe_eq =
- container_of(work, struct be_eq_obj, work_cqs);
-
- phba = pbe_eq->phba;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
-
- if (pbe_eq->todo_mcc_cq) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_mcc_cq = false;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- beiscsi_process_mcc_cq(phba);
- }
-
- if (pbe_eq->todo_cq) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_cq = false;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- beiscsi_process_cq(pbe_eq, BE2_MAX_NUM_CQ_PROC);
- }
-
- /* rearm EQ for further interrupts */
- hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
-}
-
static int be_iopoll(struct irq_poll *iop, int budget)
{
- unsigned int ret, num_eq_processed;
+ unsigned int ret, io_events;
struct beiscsi_hba *phba;
struct be_eq_obj *pbe_eq;
struct be_eq_entry *eqe = NULL;
struct be_queue_info *eq;
- num_eq_processed = 0;
pbe_eq = container_of(iop, struct be_eq_obj, iopoll);
phba = pbe_eq->phba;
+ if (beiscsi_hba_in_error(phba)) {
+ irq_poll_complete(iop);
+ return 0;
+ }
+
+ io_events = 0;
eq = &pbe_eq->q;
eqe = queue_tail_node(eq);
-
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] &
EQE_VALID_MASK) {
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
- num_eq_processed++;
+ io_events++;
}
-
- hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1);
+ hwi_ring_eq_db(phba, eq->id, 1, io_events, 0, 1);
ret = beiscsi_process_cq(pbe_eq, budget);
pbe_eq->cq_count += ret;
BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
"BM_%d : rearm pbe_eq->q.id =%d ret %d\n",
pbe_eq->q.id, ret);
- hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
+ if (!beiscsi_hba_in_error(phba))
+ hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
}
return ret;
}
(ulp_num * MEM_DESCR_OFFSET));
phba->mem_req[mem_descr_index] =
BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct async_pdu_handle);
+ sizeof(struct hd_async_handle);
mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
(ulp_num * MEM_DESCR_OFFSET));
phba->mem_req[mem_descr_index] =
BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct async_pdu_handle);
+ sizeof(struct hd_async_handle);
mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
(ulp_num * MEM_DESCR_OFFSET));
phba->mem_req[mem_descr_index] =
- sizeof(struct hwi_async_pdu_context) +
+ sizeof(struct hd_async_context) +
(BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct hwi_async_entry));
+ sizeof(struct hd_async_entry));
}
}
}
uint8_t ulp_num;
struct hwi_controller *phwi_ctrlr;
struct hba_parameters *p = &phba->params;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_header_h, *pasync_data_h;
+ struct hd_async_context *pasync_ctx;
+ struct hd_async_handle *pasync_header_h, *pasync_data_h;
unsigned int index, idx, num_per_mem, num_async_data;
struct be_mem_descriptor *mem_descr;
for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
-
+ /* get async_ctx for each ULP */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
(ulp_num * MEM_DESCR_OFFSET));
phwi_ctrlr = phba->phwi_ctrlr;
phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] =
- (struct hwi_async_pdu_context *)
+ (struct hd_async_context *)
mem_descr->mem_array[0].virtual_address;
pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
memset(pasync_ctx, 0, sizeof(*pasync_ctx));
pasync_ctx->async_entry =
- (struct hwi_async_entry *)
+ (struct hd_async_entry *)
((long unsigned int)pasync_ctx +
- sizeof(struct hwi_async_pdu_context));
+ sizeof(struct hd_async_context));
pasync_ctx->num_entries = BEISCSI_GET_CID_COUNT(phba,
ulp_num);
- pasync_ctx->buffer_size = p->defpdu_hdr_sz;
-
+ /* setup header buffers */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
(ulp_num * MEM_DESCR_OFFSET);
"BM_%d : No Virtual address for ULP : %d\n",
ulp_num);
+ pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz;
pasync_ctx->async_header.va_base =
mem_descr->mem_array[0].virtual_address;
mem_descr->mem_array[0].
bus_address.u.a64.address;
+ /* setup header buffer sgls */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
(ulp_num * MEM_DESCR_OFFSET);
pasync_ctx->async_header.ring_base =
mem_descr->mem_array[0].virtual_address;
+ /* setup header buffer handles */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
(ulp_num * MEM_DESCR_OFFSET);
pasync_ctx->async_header.handle_base =
mem_descr->mem_array[0].virtual_address;
- pasync_ctx->async_header.writables = 0;
INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
+ /* setup data buffer sgls */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
(ulp_num * MEM_DESCR_OFFSET);
pasync_ctx->async_data.ring_base =
mem_descr->mem_array[0].virtual_address;
+ /* setup data buffer handles */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
(ulp_num * MEM_DESCR_OFFSET);
pasync_ctx->async_data.handle_base =
mem_descr->mem_array[0].virtual_address;
- pasync_ctx->async_data.writables = 0;
INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
pasync_header_h =
- (struct async_pdu_handle *)
+ (struct hd_async_handle *)
pasync_ctx->async_header.handle_base;
pasync_data_h =
- (struct async_pdu_handle *)
+ (struct hd_async_handle *)
pasync_ctx->async_data.handle_base;
+ /* setup data buffers */
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 +
(ulp_num * MEM_DESCR_OFFSET);
ulp_num);
idx = 0;
+ pasync_ctx->async_data.buffer_size = p->defpdu_data_sz;
pasync_ctx->async_data.va_base =
mem_descr->mem_array[idx].virtual_address;
pasync_ctx->async_data.pa_base.u.a64.address =
for (index = 0; index < BEISCSI_GET_CID_COUNT
(phba, ulp_num); index++) {
pasync_header_h->cri = -1;
- pasync_header_h->index = (char)index;
+ pasync_header_h->is_header = 1;
+ pasync_header_h->index = index;
INIT_LIST_HEAD(&pasync_header_h->link);
pasync_header_h->pbuffer =
(void *)((unsigned long)
free_list);
pasync_header_h++;
pasync_ctx->async_header.free_entries++;
- pasync_ctx->async_header.writables++;
-
- INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
- wait_queue.list);
INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
- header_busy_list);
+ wq.list);
+ pasync_ctx->async_entry[index].header = NULL;
+
pasync_data_h->cri = -1;
- pasync_data_h->index = (char)index;
+ pasync_data_h->is_header = 0;
+ pasync_data_h->index = index;
INIT_LIST_HEAD(&pasync_data_h->link);
if (!num_async_data) {
free_list);
pasync_data_h++;
pasync_ctx->async_data.free_entries++;
- pasync_ctx->async_data.writables++;
-
- INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
- data_busy_list);
+ pasync_ctx->async_entry[index].data = NULL;
}
-
- pasync_ctx->async_header.host_write_ptr = 0;
- pasync_ctx->async_header.ep_read_ptr = -1;
- pasync_ctx->async_data.host_write_ptr = 0;
- pasync_ctx->async_data.ep_read_ptr = -1;
}
}
static int beiscsi_create_eqs(struct beiscsi_hba *phba,
struct hwi_context_memory *phwi_context)
{
+ int ret = -ENOMEM, eq_for_mcc;
unsigned int i, num_eq_pages;
- int ret = 0, eq_for_mcc;
struct be_queue_info *eq;
struct be_dma_mem *mem;
void *eq_vaddress;
mem = &eq->dma_mem;
phwi_context->be_eq[i].phba = phba;
eq_vaddress = pci_alloc_consistent(phba->pcidev,
- num_eq_pages * PAGE_SIZE,
- &paddr);
+ num_eq_pages * PAGE_SIZE,
+ &paddr);
if (!eq_vaddress)
goto create_eq_error;
phwi_context->be_eq[i].q.id);
}
return 0;
+
create_eq_error:
for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
eq = &phwi_context->be_eq[i].q;
struct hwi_context_memory *phwi_context)
{
unsigned int i, num_cq_pages;
- int ret = 0;
struct be_queue_info *cq, *eq;
struct be_dma_mem *mem;
struct be_eq_obj *pbe_eq;
void *cq_vaddress;
+ int ret = -ENOMEM;
dma_addr_t paddr;
num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
pbe_eq->phba = phba;
mem = &cq->dma_mem;
cq_vaddress = pci_alloc_consistent(phba->pcidev,
- num_cq_pages * PAGE_SIZE,
- &paddr);
+ num_cq_pages * PAGE_SIZE,
+ &paddr);
if (!cq_vaddress)
goto create_cq_error;
+
ret = be_fill_queue(cq, phba->params.num_cq_entries,
sizeof(struct sol_cqe), cq_vaddress);
if (ret) {
mem->va, mem->dma);
}
return ret;
-
}
static int
"BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n",
ulp_num,
phwi_context->be_def_hdrq[ulp_num].id);
- hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num);
return 0;
}
ulp_num,
phwi_context->be_def_dataq[ulp_num].id);
- hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num);
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
"BM_%d : DEFAULT PDU DATA RING CREATED"
"on ULP : %d\n", ulp_num);
-
return 0;
}
static void be_mcc_queues_destroy(struct beiscsi_hba *phba)
{
- struct be_queue_info *q;
struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_dma_mem *ptag_mem;
+ struct be_queue_info *q;
+ int i, tag;
q = &phba->ctrl.mcc_obj.q;
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ tag = i + 1;
+ if (!test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state))
+ continue;
+
+ if (test_bit(MCC_TAG_STATE_TIMEOUT,
+ &ctrl->ptag_state[tag].tag_state)) {
+ ptag_mem = &ctrl->ptag_state[tag].tag_mem_state;
+ if (ptag_mem->size) {
+ pci_free_consistent(ctrl->pdev,
+ ptag_mem->size,
+ ptag_mem->va,
+ ptag_mem->dma);
+ ptag_mem->size = 0;
+ }
+ continue;
+ }
+ /**
+ * If MCC is still active and waiting then wake up the process.
+ * We are here only because port is going offline. The process
+ * sees that (BEISCSI_HBA_ONLINE is cleared) and EIO error is
+ * returned for the operation and allocated memory cleaned up.
+ */
+ if (waitqueue_active(&ctrl->mcc_wait[tag])) {
+ ctrl->mcc_tag_status[tag] = MCC_STATUS_FAILED;
+ ctrl->mcc_tag_status[tag] |= CQE_VALID_MASK;
+ wake_up_interruptible(&ctrl->mcc_wait[tag]);
+ /*
+ * Control tag info gets reinitialized in enable
+ * so wait for the process to clear running state.
+ */
+ while (test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state))
+ schedule_timeout_uninterruptible(HZ);
+ }
+ /**
+ * For MCC with tag_states MCC_TAG_STATE_ASYNC and
+ * MCC_TAG_STATE_IGNORE nothing needs to done.
+ */
+ }
if (q->created) {
beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ);
be_queue_free(phba, q);
}
}
-static void hwi_cleanup(struct beiscsi_hba *phba)
-{
- struct be_queue_info *q;
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct hwi_async_pdu_context *pasync_ctx;
- int i, eq_for_mcc, ulp_num;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
-
- be_cmd_iscsi_remove_template_hdr(ctrl);
-
- for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
- q = &phwi_context->be_wrbq[i];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
- }
- kfree(phwi_context->be_wrbq);
- free_wrb_handles(phba);
-
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
-
- q = &phwi_context->be_def_hdrq[ulp_num];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
-
- q = &phwi_context->be_def_dataq[ulp_num];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
-
- pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
- }
- }
-
- beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
-
- for (i = 0; i < (phba->num_cpus); i++) {
- q = &phwi_context->be_cq[i];
- if (q->created) {
- be_queue_free(phba, q);
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
- }
- }
-
- be_mcc_queues_destroy(phba);
- if (phba->msix_enabled)
- eq_for_mcc = 1;
- else
- eq_for_mcc = 0;
- for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
- q = &phwi_context->be_eq[i].q;
- if (q->created) {
- be_queue_free(phba, q);
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
- }
- }
- be_cmd_fw_uninit(ctrl);
-}
-
static int be_mcc_queues_create(struct beiscsi_hba *phba,
struct hwi_context_memory *phwi_context)
{
}
}
-static int hwi_init_port(struct beiscsi_hba *phba)
+static void hwi_purge_eq(struct beiscsi_hba *phba)
+{
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_queue_info *eq;
+ struct be_eq_entry *eqe = NULL;
+ int i, eq_msix;
+ unsigned int num_processed;
+
+ if (beiscsi_hba_in_error(phba))
+ return;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ if (phba->msix_enabled)
+ eq_msix = 1;
+ else
+ eq_msix = 0;
+
+ for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ eqe = queue_tail_node(eq);
+ num_processed = 0;
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ num_processed++;
+ }
+
+ if (num_processed)
+ hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
+ }
+}
+
+static void hwi_cleanup_port(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *q;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct hd_async_context *pasync_ctx;
+ int i, eq_for_mcc, ulp_num;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ beiscsi_cmd_iscsi_cleanup(phba, ulp_num);
+
+ /**
+ * Purge all EQ entries that may have been left out. This is to
+ * workaround a problem we've seen occasionally where driver gets an
+ * interrupt with EQ entry bit set after stopping the controller.
+ */
+ hwi_purge_eq(phba);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ be_cmd_iscsi_remove_template_hdr(ctrl);
+
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+ q = &phwi_context->be_wrbq[i];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
+ }
+ kfree(phwi_context->be_wrbq);
+ free_wrb_handles(phba);
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+
+ q = &phwi_context->be_def_hdrq[ulp_num];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+ q = &phwi_context->be_def_dataq[ulp_num];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+ pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
+ }
+ }
+
+ beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+
+ for (i = 0; i < (phba->num_cpus); i++) {
+ q = &phwi_context->be_cq[i];
+ if (q->created) {
+ be_queue_free(phba, q);
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ }
+ }
+
+ be_mcc_queues_destroy(phba);
+ if (phba->msix_enabled)
+ eq_for_mcc = 1;
+ else
+ eq_for_mcc = 0;
+ for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
+ q = &phwi_context->be_eq[i].q;
+ if (q->created) {
+ be_queue_free(phba, q);
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+ }
+ }
+ /* this ensures complete FW cleanup */
+ beiscsi_cmd_function_reset(phba);
+ /* last communication, indicate driver is unloading */
+ beiscsi_cmd_special_wrb(&phba->ctrl, 0);
+}
+
+static int hwi_init_port(struct beiscsi_hba *phba)
{
struct hwi_controller *phwi_ctrlr;
struct hwi_context_memory *phwi_context;
phwi_context = phwi_ctrlr->phwi_ctxt;
phwi_context->max_eqd = 128;
phwi_context->min_eqd = 0;
- phwi_context->cur_eqd = 0;
- be_cmd_fw_initialize(&phba->ctrl);
- /* set optic state to unknown */
+ phwi_context->cur_eqd = 32;
+ /* set port optic state to unknown */
phba->optic_state = 0xff;
status = beiscsi_create_eqs(phba, phwi_context);
if (status != 0)
goto error;
- status = mgmt_check_supported_fw(ctrl, phba);
+ status = beiscsi_check_supported_fw(ctrl, phba);
if (status != 0) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : Unsupported fw version\n");
for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
-
def_pdu_ring_sz =
BEISCSI_GET_CID_COUNT(phba, ulp_num) *
sizeof(struct phys_addr);
ulp_num);
goto error;
}
+ /**
+ * Now that the default PDU rings have been created,
+ * let EP know about it.
+ * Call beiscsi_cmd_iscsi_cleanup before posting?
+ */
+ beiscsi_hdq_post_handles(phba, BEISCSI_DEFQ_HDR,
+ ulp_num);
+ beiscsi_hdq_post_handles(phba, BEISCSI_DEFQ_DATA,
+ ulp_num);
}
}
if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
uint16_t cri = 0;
- struct hwi_async_pdu_context *pasync_ctx;
+ struct hd_async_context *pasync_ctx;
pasync_ctx = HWI_GET_ASYNC_PDU_CTX(
phwi_ctrlr, ulp_num);
phwi_ctrlr->wrb_context[cri].cid] =
async_arr_idx++;
}
+ /**
+ * Now that the default PDU rings have been created,
+ * let EP know about it.
+ */
+ beiscsi_hdq_post_handles(phba, BEISCSI_DEFQ_HDR,
+ ulp_num);
+ beiscsi_hdq_post_handles(phba, BEISCSI_DEFQ_DATA,
+ ulp_num);
}
}
error:
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : hwi_init_port failed");
- hwi_cleanup(phba);
+ hwi_cleanup_port(phba);
return status;
}
"BM_%d : In hwi_disable_intr, Already Disabled\n");
}
-/**
- * beiscsi_get_boot_info()- Get the boot session info
- * @phba: The device priv structure instance
- *
- * Get the boot target info and store in driver priv structure
- *
- * return values
- * Success: 0
- * Failure: Non-Zero Value
- **/
-static int beiscsi_get_boot_info(struct beiscsi_hba *phba)
-{
- struct be_cmd_get_session_resp *session_resp;
- struct be_dma_mem nonemb_cmd;
- unsigned int tag;
- unsigned int s_handle;
- int ret = -ENOMEM;
-
- /* Get the session handle of the boot target */
- ret = be_mgmt_get_boot_shandle(phba, &s_handle);
- if (ret) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : No boot session\n");
-
- if (ret == -ENXIO)
- phba->get_boot = 0;
-
-
- return ret;
- }
- phba->get_boot = 0;
- nonemb_cmd.va = pci_zalloc_consistent(phba->ctrl.pdev,
- sizeof(*session_resp),
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : Failed to allocate memory for"
- "beiscsi_get_session_info\n");
-
- return -ENOMEM;
- }
-
- tag = mgmt_get_session_info(phba, s_handle,
- &nonemb_cmd);
- if (!tag) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : beiscsi_get_session_info"
- " Failed\n");
-
- goto boot_freemem;
- }
-
- ret = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
- if (ret) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : beiscsi_get_session_info Failed");
-
- if (ret != -EBUSY)
- goto boot_freemem;
- else
- return ret;
- }
-
- session_resp = nonemb_cmd.va ;
-
- memcpy(&phba->boot_sess, &session_resp->session_info,
- sizeof(struct mgmt_session_info));
-
- beiscsi_logout_fw_sess(phba,
- phba->boot_sess.session_handle);
- ret = 0;
-
-boot_freemem:
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return ret;
-}
-
-static void beiscsi_boot_release(void *data)
-{
- struct beiscsi_hba *phba = data;
-
- scsi_host_put(phba->shost);
-}
-
-static int beiscsi_setup_boot_info(struct beiscsi_hba *phba)
-{
- struct iscsi_boot_kobj *boot_kobj;
-
- /* it has been created previously */
- if (phba->boot_kset)
- return 0;
-
- /* get boot info using mgmt cmd */
- if (beiscsi_get_boot_info(phba))
- /* Try to see if we can carry on without this */
- return 0;
-
- phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no);
- if (!phba->boot_kset)
- return -ENOMEM;
-
- /* get a ref because the show function will ref the phba */
- if (!scsi_host_get(phba->shost))
- goto free_kset;
- boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba,
- beiscsi_show_boot_tgt_info,
- beiscsi_tgt_get_attr_visibility,
- beiscsi_boot_release);
- if (!boot_kobj)
- goto put_shost;
-
- if (!scsi_host_get(phba->shost))
- goto free_kset;
- boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba,
- beiscsi_show_boot_ini_info,
- beiscsi_ini_get_attr_visibility,
- beiscsi_boot_release);
- if (!boot_kobj)
- goto put_shost;
-
- if (!scsi_host_get(phba->shost))
- goto free_kset;
- boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba,
- beiscsi_show_boot_eth_info,
- beiscsi_eth_get_attr_visibility,
- beiscsi_boot_release);
- if (!boot_kobj)
- goto put_shost;
- return 0;
-
-put_shost:
- scsi_host_put(phba->shost);
-free_kset:
- iscsi_boot_destroy_kset(phba->boot_kset);
- phba->boot_kset = NULL;
- return -ENOMEM;
-}
-
static int beiscsi_init_port(struct beiscsi_hba *phba)
{
int ret;
goto do_cleanup_ctrlr;
}
- if (hba_setup_cid_tbls(phba)) {
+ ret = hba_setup_cid_tbls(phba);
+ if (ret < 0) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : Failed in hba_setup_cid_tbls\n");
kfree(phba->io_sgl_hndl_base);
return ret;
do_cleanup_ctrlr:
- hwi_cleanup(phba);
+ hwi_cleanup_port(phba);
return ret;
}
-static void hwi_purge_eq(struct beiscsi_hba *phba)
-{
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_queue_info *eq;
- struct be_eq_entry *eqe = NULL;
- int i, eq_msix;
- unsigned int num_processed;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- if (phba->msix_enabled)
- eq_msix = 1;
- else
- eq_msix = 0;
-
- for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
- eq = &phwi_context->be_eq[i].q;
- eqe = queue_tail_node(eq);
- num_processed = 0;
- while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
- & EQE_VALID_MASK) {
- AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
- queue_tail_inc(eq);
- eqe = queue_tail_node(eq);
- num_processed++;
- }
-
- if (num_processed)
- hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
- }
-}
-
-static void beiscsi_clean_port(struct beiscsi_hba *phba)
+static void beiscsi_cleanup_port(struct beiscsi_hba *phba)
{
- int mgmt_status, ulp_num;
struct ulp_cid_info *ptr_cid_info = NULL;
+ int ulp_num;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
- mgmt_status = mgmt_epfw_cleanup(phba, ulp_num);
- if (mgmt_status)
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : mgmt_epfw_cleanup FAILED"
- " for ULP_%d\n", ulp_num);
- }
- }
-
- hwi_purge_eq(phba);
- hwi_cleanup(phba);
kfree(phba->io_sgl_hndl_base);
kfree(phba->eh_sgl_hndl_base);
kfree(phba->ep_array);
}
}
}
-
}
/**
io_task = task->dd_data;
if (io_task->pwrb_handle) {
- memset(io_task->pwrb_handle->pwrb, 0,
- sizeof(struct iscsi_wrb));
- free_wrb_handle(phba, pwrb_context,
- io_task->pwrb_handle);
+ free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
io_task->pwrb_handle = NULL;
}
if (io_task->psgl_handle) {
- free_mgmt_sgl_handle(phba,
- io_task->psgl_handle);
+ free_mgmt_sgl_handle(phba, io_task->psgl_handle);
io_task->psgl_handle = NULL;
}
pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
io_task->bhs_pa.u.a64.address);
io_task->cmd_bhs = NULL;
+ task->hdr = NULL;
}
if (task->sc) {
}
if (io_task->scsi_cmnd) {
- scsi_dma_unmap(io_task->scsi_cmnd);
+ if (io_task->num_sg)
+ scsi_dma_unmap(io_task->scsi_cmnd);
io_task->scsi_cmnd = NULL;
}
} else {
cid = beiscsi_conn->beiscsi_conn_cid;
pwrb = io_task->pwrb_handle->pwrb;
- memset(pwrb, 0, sizeof(*pwrb));
if (is_chip_be2_be3r(phba)) {
AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
int num_sg;
unsigned int writedir = 0, xferlen = 0;
+ phba = io_task->conn->phba;
+ /**
+ * HBA in error includes BEISCSI_HBA_FW_TIMEOUT. IO path might be
+ * operational if FW still gets heartbeat from EP FW. Is management
+ * path really needed to continue further?
+ */
+ if (!beiscsi_hba_is_online(phba))
+ return -EIO;
+
if (!io_task->conn->login_in_progress)
task->hdr->exp_statsn = 0;
return beiscsi_mtask(task);
io_task->scsi_cmnd = sc;
+ io_task->num_sg = 0;
num_sg = scsi_dma_map(sc);
- phba = io_task->conn->phba;
if (num_sg < 0) {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI,
return num_sg;
}
+ /**
+ * For scsi cmd task, check num_sg before unmapping in cleanup_task.
+ * For management task, cleanup_task checks mtask_addr before unmapping.
+ */
+ io_task->num_sg = num_sg;
xferlen = scsi_bufflen(sc);
sg = scsi_sglist(sc);
if (sc->sc_data_direction == DMA_TO_DEVICE)
shost = iscsi_job_to_shost(job);
phba = iscsi_host_priv(shost);
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BM_%d : HBA in error 0x%lx\n", phba->state);
+ return -ENXIO;
+ }
+
switch (bsg_req->msgcode) {
case ISCSI_BSG_HST_VENDOR:
nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
phba->ctrl.mcc_tag_status[tag],
msecs_to_jiffies(
BEISCSI_HOST_MBX_TIMEOUT));
+
+ if (!test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return -EIO;
+ }
extd_status = (phba->ctrl.mcc_tag_status[tag] &
CQE_STATUS_ADDL_MASK) >> CQE_STATUS_ADDL_SHIFT;
status = phba->ctrl.mcc_tag_status[tag] & CQE_STATUS_MASK;
beiscsi_log_enable_init(phba, beiscsi_log_enable);
}
-/*
- * beiscsi_quiesce()- Cleanup Driver resources
- * @phba: Instance Priv structure
- * @unload_state:i Clean or EEH unload state
- *
- * Free the OS and HW resources held by the driver
- **/
-static void beiscsi_quiesce(struct beiscsi_hba *phba,
- uint32_t unload_state)
+void beiscsi_start_boot_work(struct beiscsi_hba *phba, unsigned int s_handle)
{
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_eq_obj *pbe_eq;
- unsigned int i, msix_vec;
+ if (phba->boot_struct.boot_kset)
+ return;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- hwi_disable_intr(phba);
- if (phba->msix_enabled) {
- for (i = 0; i <= phba->num_cpus; i++) {
- msix_vec = phba->msix_entries[i].vector;
- free_irq(msix_vec, &phwi_context->be_eq[i]);
- kfree(phba->msi_name[i]);
- }
- } else
- if (phba->pcidev->irq)
- free_irq(phba->pcidev->irq, phba);
- pci_disable_msix(phba->pcidev);
- cancel_delayed_work_sync(&phba->beiscsi_hw_check_task);
+ /* skip if boot work is already in progress */
+ if (test_and_set_bit(BEISCSI_HBA_BOOT_WORK, &phba->state))
+ return;
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- irq_poll_disable(&pbe_eq->iopoll);
+ phba->boot_struct.retry = 3;
+ phba->boot_struct.tag = 0;
+ phba->boot_struct.s_handle = s_handle;
+ phba->boot_struct.action = BEISCSI_BOOT_GET_SHANDLE;
+ schedule_work(&phba->boot_work);
+}
+
+static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf)
+{
+ struct beiscsi_hba *phba = data;
+ struct mgmt_session_info *boot_sess = &phba->boot_struct.boot_sess;
+ struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0];
+ char *str = buf;
+ int rc = -EPERM;
+
+ switch (type) {
+ case ISCSI_BOOT_TGT_NAME:
+ rc = sprintf(buf, "%.*s\n",
+ (int)strlen(boot_sess->target_name),
+ (char *)&boot_sess->target_name);
+ break;
+ case ISCSI_BOOT_TGT_IP_ADDR:
+ if (boot_conn->dest_ipaddr.ip_type == BEISCSI_IP_TYPE_V4)
+ rc = sprintf(buf, "%pI4\n",
+ (char *)&boot_conn->dest_ipaddr.addr);
+ else
+ rc = sprintf(str, "%pI6\n",
+ (char *)&boot_conn->dest_ipaddr.addr);
+ break;
+ case ISCSI_BOOT_TGT_PORT:
+ rc = sprintf(str, "%d\n", boot_conn->dest_port);
+ break;
+
+ case ISCSI_BOOT_TGT_CHAP_NAME:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ target_chap_name_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.target_chap_name);
+ break;
+ case ISCSI_BOOT_TGT_CHAP_SECRET:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ target_secret_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.target_secret);
+ break;
+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ intr_chap_name_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.intr_chap_name);
+ break;
+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ intr_secret_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.intr_secret);
+ break;
+ case ISCSI_BOOT_TGT_FLAGS:
+ rc = sprintf(str, "2\n");
+ break;
+ case ISCSI_BOOT_TGT_NIC_ASSOC:
+ rc = sprintf(str, "0\n");
+ break;
}
+ return rc;
+}
- if (unload_state == BEISCSI_CLEAN_UNLOAD) {
- destroy_workqueue(phba->wq);
- beiscsi_clean_port(phba);
- beiscsi_free_mem(phba);
+static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf)
+{
+ struct beiscsi_hba *phba = data;
+ char *str = buf;
+ int rc = -EPERM;
- beiscsi_unmap_pci_function(phba);
- pci_free_consistent(phba->pcidev,
- phba->ctrl.mbox_mem_alloced.size,
- phba->ctrl.mbox_mem_alloced.va,
- phba->ctrl.mbox_mem_alloced.dma);
- } else {
- hwi_purge_eq(phba);
- hwi_cleanup(phba);
+ switch (type) {
+ case ISCSI_BOOT_INI_INITIATOR_NAME:
+ rc = sprintf(str, "%s\n",
+ phba->boot_struct.boot_sess.initiator_iscsiname);
+ break;
}
+ return rc;
+}
+
+static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf)
+{
+ struct beiscsi_hba *phba = data;
+ char *str = buf;
+ int rc = -EPERM;
+ switch (type) {
+ case ISCSI_BOOT_ETH_FLAGS:
+ rc = sprintf(str, "2\n");
+ break;
+ case ISCSI_BOOT_ETH_INDEX:
+ rc = sprintf(str, "0\n");
+ break;
+ case ISCSI_BOOT_ETH_MAC:
+ rc = beiscsi_get_macaddr(str, phba);
+ break;
+ }
+ return rc;
}
-static void beiscsi_remove(struct pci_dev *pcidev)
+static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
{
- struct beiscsi_hba *phba = NULL;
+ umode_t rc = 0;
- phba = pci_get_drvdata(pcidev);
- if (!phba) {
- dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
- return;
+ switch (type) {
+ case ISCSI_BOOT_TGT_NAME:
+ case ISCSI_BOOT_TGT_IP_ADDR:
+ case ISCSI_BOOT_TGT_PORT:
+ case ISCSI_BOOT_TGT_CHAP_NAME:
+ case ISCSI_BOOT_TGT_CHAP_SECRET:
+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+ case ISCSI_BOOT_TGT_NIC_ASSOC:
+ case ISCSI_BOOT_TGT_FLAGS:
+ rc = S_IRUGO;
+ break;
}
+ return rc;
+}
- beiscsi_destroy_def_ifaces(phba);
- iscsi_boot_destroy_kset(phba->boot_kset);
- iscsi_host_remove(phba->shost);
- beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
- pci_dev_put(phba->pcidev);
- iscsi_host_free(phba->shost);
- pci_disable_pcie_error_reporting(pcidev);
- pci_set_drvdata(pcidev, NULL);
- pci_release_regions(pcidev);
- pci_disable_device(pcidev);
+static umode_t beiscsi_ini_get_attr_visibility(void *data, int type)
+{
+ umode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_INI_INITIATOR_NAME:
+ rc = S_IRUGO;
+ break;
+ }
+ return rc;
}
-static void beiscsi_msix_enable(struct beiscsi_hba *phba)
+static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
{
- int i, status;
+ umode_t rc = 0;
- for (i = 0; i <= phba->num_cpus; i++)
- phba->msix_entries[i].entry = i;
+ switch (type) {
+ case ISCSI_BOOT_ETH_FLAGS:
+ case ISCSI_BOOT_ETH_MAC:
+ case ISCSI_BOOT_ETH_INDEX:
+ rc = S_IRUGO;
+ break;
+ }
+ return rc;
+}
- status = pci_enable_msix_range(phba->pcidev, phba->msix_entries,
- phba->num_cpus + 1, phba->num_cpus + 1);
- if (status > 0)
- phba->msix_enabled = true;
+static void beiscsi_boot_kobj_release(void *data)
+{
+ struct beiscsi_hba *phba = data;
+
+ scsi_host_put(phba->shost);
+}
+
+static int beiscsi_boot_create_kset(struct beiscsi_hba *phba)
+{
+ struct boot_struct *bs = &phba->boot_struct;
+ struct iscsi_boot_kobj *boot_kobj;
+
+ if (bs->boot_kset) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d: boot_kset already created\n");
+ return 0;
+ }
+
+ bs->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no);
+ if (!bs->boot_kset) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d: boot_kset alloc failed\n");
+ return -ENOMEM;
+ }
+
+ /* get shost ref because the show function will refer phba */
+ if (!scsi_host_get(phba->shost))
+ goto free_kset;
+
+ boot_kobj = iscsi_boot_create_target(bs->boot_kset, 0, phba,
+ beiscsi_show_boot_tgt_info,
+ beiscsi_tgt_get_attr_visibility,
+ beiscsi_boot_kobj_release);
+ if (!boot_kobj)
+ goto put_shost;
+
+ if (!scsi_host_get(phba->shost))
+ goto free_kset;
+
+ boot_kobj = iscsi_boot_create_initiator(bs->boot_kset, 0, phba,
+ beiscsi_show_boot_ini_info,
+ beiscsi_ini_get_attr_visibility,
+ beiscsi_boot_kobj_release);
+ if (!boot_kobj)
+ goto put_shost;
+
+ if (!scsi_host_get(phba->shost))
+ goto free_kset;
+
+ boot_kobj = iscsi_boot_create_ethernet(bs->boot_kset, 0, phba,
+ beiscsi_show_boot_eth_info,
+ beiscsi_eth_get_attr_visibility,
+ beiscsi_boot_kobj_release);
+ if (!boot_kobj)
+ goto put_shost;
+
+ return 0;
+
+put_shost:
+ scsi_host_put(phba->shost);
+free_kset:
+ iscsi_boot_destroy_kset(bs->boot_kset);
+ bs->boot_kset = NULL;
+ return -ENOMEM;
+}
+
+static void beiscsi_boot_work(struct work_struct *work)
+{
+ struct beiscsi_hba *phba =
+ container_of(work, struct beiscsi_hba, boot_work);
+ struct boot_struct *bs = &phba->boot_struct;
+ unsigned int tag = 0;
- return;
+ if (!beiscsi_hba_is_online(phba))
+ return;
+
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BM_%d : %s action %d\n",
+ __func__, phba->boot_struct.action);
+
+ switch (phba->boot_struct.action) {
+ case BEISCSI_BOOT_REOPEN_SESS:
+ tag = beiscsi_boot_reopen_sess(phba);
+ break;
+ case BEISCSI_BOOT_GET_SHANDLE:
+ tag = __beiscsi_boot_get_shandle(phba, 1);
+ break;
+ case BEISCSI_BOOT_GET_SINFO:
+ tag = beiscsi_boot_get_sinfo(phba);
+ break;
+ case BEISCSI_BOOT_LOGOUT_SESS:
+ tag = beiscsi_boot_logout_sess(phba);
+ break;
+ case BEISCSI_BOOT_CREATE_KSET:
+ beiscsi_boot_create_kset(phba);
+ /**
+ * updated boot_kset is made visible to all before
+ * ending the boot work.
+ */
+ mb();
+ clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
+ return;
+ }
+ if (!tag) {
+ if (bs->retry--)
+ schedule_work(&phba->boot_work);
+ else
+ clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
+ }
}
-static void be_eqd_update(struct beiscsi_hba *phba)
+static void beiscsi_eqd_update_work(struct work_struct *work)
{
+ struct hwi_context_memory *phwi_context;
struct be_set_eqd set_eqd[MAX_CPUS];
- struct be_aic_obj *aic;
- struct be_eq_obj *pbe_eq;
struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
+ struct be_eq_obj *pbe_eq;
+ struct beiscsi_hba *phba;
+ unsigned int pps, delta;
+ struct be_aic_obj *aic;
int eqd, i, num = 0;
- ulong now;
- u32 pps, delta;
- unsigned int tag;
+ unsigned long now;
+
+ phba = container_of(work, struct beiscsi_hba, eqd_update.work);
+ if (!beiscsi_hba_is_online(phba))
+ return;
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
aic = &phba->aic_obj[i];
pbe_eq = &phwi_context->be_eq[i];
now = jiffies;
- if (!aic->jiffs || time_before(now, aic->jiffs) ||
+ if (!aic->jiffies || time_before(now, aic->jiffies) ||
pbe_eq->cq_count < aic->eq_prev) {
- aic->jiffs = now;
+ aic->jiffies = now;
aic->eq_prev = pbe_eq->cq_count;
continue;
}
- delta = jiffies_to_msecs(now - aic->jiffs);
+ delta = jiffies_to_msecs(now - aic->jiffies);
pps = (((u32)(pbe_eq->cq_count - aic->eq_prev) * 1000) / delta);
eqd = (pps / 1500) << 2;
eqd = min_t(u32, eqd, phwi_context->max_eqd);
eqd = max_t(u32, eqd, phwi_context->min_eqd);
- aic->jiffs = now;
+ aic->jiffies = now;
aic->eq_prev = pbe_eq->cq_count;
if (eqd != aic->prev_eqd) {
num++;
}
}
- if (num) {
- tag = be_cmd_modify_eq_delay(phba, set_eqd, num);
- if (tag)
- beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
+ if (num)
+ /* completion of this is ignored */
+ beiscsi_modify_eq_delay(phba, set_eqd, num);
+
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+}
+
+static void beiscsi_msix_enable(struct beiscsi_hba *phba)
+{
+ int i, status;
+
+ for (i = 0; i <= phba->num_cpus; i++)
+ phba->msix_entries[i].entry = i;
+
+ status = pci_enable_msix_range(phba->pcidev, phba->msix_entries,
+ phba->num_cpus + 1, phba->num_cpus + 1);
+ if (status > 0)
+ phba->msix_enabled = true;
+}
+
+static void beiscsi_hw_tpe_check(unsigned long ptr)
+{
+ struct beiscsi_hba *phba;
+ u32 wait;
+
+ phba = (struct beiscsi_hba *)ptr;
+ /* if not TPE, do nothing */
+ if (!beiscsi_detect_tpe(phba))
+ return;
+
+ /* wait default 4000ms before recovering */
+ wait = 4000;
+ if (phba->ue2rp > BEISCSI_UE_DETECT_INTERVAL)
+ wait = phba->ue2rp - BEISCSI_UE_DETECT_INTERVAL;
+ queue_delayed_work(phba->wq, &phba->recover_port,
+ msecs_to_jiffies(wait));
+}
+
+static void beiscsi_hw_health_check(unsigned long ptr)
+{
+ struct beiscsi_hba *phba;
+
+ phba = (struct beiscsi_hba *)ptr;
+ beiscsi_detect_ue(phba);
+ if (beiscsi_detect_ue(phba)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : port in error: %lx\n", phba->state);
+ /* sessions are no longer valid, so first fail the sessions */
+ queue_work(phba->wq, &phba->sess_work);
+
+ /* detect UER supported */
+ if (!test_bit(BEISCSI_HBA_UER_SUPP, &phba->state))
+ return;
+ /* modify this timer to check TPE */
+ phba->hw_check.function = beiscsi_hw_tpe_check;
}
+
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
}
-static void be_check_boot_session(struct beiscsi_hba *phba)
+/*
+ * beiscsi_enable_port()- Enables the disabled port.
+ * Only port resources freed in disable function are reallocated.
+ * This is called in HBA error handling path.
+ *
+ * @phba: Instance of driver private structure
+ *
+ **/
+static int beiscsi_enable_port(struct beiscsi_hba *phba)
{
- if (beiscsi_setup_boot_info(phba))
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Could not set up "
- "iSCSI boot info on async event.\n");
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ int ret, i;
+
+ if (test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : %s : port is online %lx\n",
+ __func__, phba->state);
+ return 0;
+ }
+
+ ret = beiscsi_init_sliport(phba);
+ if (ret)
+ return ret;
+
+ if (enable_msix)
+ find_num_cpus(phba);
+ else
+ phba->num_cpus = 1;
+ if (enable_msix) {
+ beiscsi_msix_enable(phba);
+ if (!phba->msix_enabled)
+ phba->num_cpus = 1;
+ }
+
+ beiscsi_get_params(phba);
+ /* Re-enable UER. If different TPE occurs then it is recoverable. */
+ beiscsi_set_uer_feature(phba);
+
+ phba->shost->max_id = phba->params.cxns_per_ctrl;
+ phba->shost->can_queue = phba->params.ios_per_ctrl;
+ ret = hwi_init_controller(phba);
+ if (ret) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : init controller failed %d\n", ret);
+ goto disable_msix;
+ }
+
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
+ phba->ctrl.mcc_tag[i] = i + 1;
+ phba->ctrl.mcc_tag_status[i + 1] = 0;
+ phba->ctrl.mcc_tag_available++;
+ }
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, be_iopoll);
+ }
+
+ i = (phba->msix_enabled) ? i : 0;
+ /* Work item for MCC handling */
+ pbe_eq = &phwi_context->be_eq[i];
+ INIT_WORK(&pbe_eq->mcc_work, beiscsi_mcc_work);
+
+ ret = beiscsi_init_irqs(phba);
+ if (ret < 0) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : setup IRQs failed %d\n", ret);
+ goto cleanup_port;
+ }
+ hwi_enable_intr(phba);
+ /* port operational: clear all error bits */
+ set_bit(BEISCSI_HBA_ONLINE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BM_%d : port online: 0x%lx\n", phba->state);
+
+ /* start hw_check timer and eqd_update work */
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+
+ /**
+ * Timer function gets modified for TPE detection.
+ * Always reinit to do health check first.
+ */
+ phba->hw_check.function = beiscsi_hw_health_check;
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
+ return 0;
+
+cleanup_port:
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ hwi_cleanup_port(phba);
+
+disable_msix:
+ if (phba->msix_enabled)
+ pci_disable_msix(phba->pcidev);
+
+ return ret;
}
/*
- * beiscsi_hw_health_check()- Check adapter health
- * @work: work item to check HW health
+ * beiscsi_disable_port()- Disable port and cleanup driver resources.
+ * This is called in HBA error handling and driver removal.
+ * @phba: Instance Priv structure
+ * @unload: indicate driver is unloading
*
- * Check if adapter in an unrecoverable state or not.
+ * Free the OS and HW resources held by the driver
**/
-static void
-beiscsi_hw_health_check(struct work_struct *work)
+static void beiscsi_disable_port(struct beiscsi_hba *phba, int unload)
{
- struct beiscsi_hba *phba =
- container_of(work, struct beiscsi_hba,
- beiscsi_hw_check_task.work);
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ unsigned int i, msix_vec;
- be_eqd_update(phba);
+ if (!test_and_clear_bit(BEISCSI_HBA_ONLINE, &phba->state))
+ return;
- if (phba->state & BE_ADAPTER_CHECK_BOOT) {
- if ((phba->get_boot > 0) && (!phba->boot_kset)) {
- phba->get_boot--;
- if (!(phba->get_boot % BE_GET_BOOT_TO))
- be_check_boot_session(phba);
- } else {
- phba->state &= ~BE_ADAPTER_CHECK_BOOT;
- phba->get_boot = 0;
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ hwi_disable_intr(phba);
+ if (phba->msix_enabled) {
+ for (i = 0; i <= phba->num_cpus; i++) {
+ msix_vec = phba->msix_entries[i].vector;
+ free_irq(msix_vec, &phwi_context->be_eq[i]);
+ kfree(phba->msi_name[i]);
}
+ } else
+ if (phba->pcidev->irq)
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msix(phba->pcidev);
+
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ cancel_delayed_work_sync(&phba->eqd_update);
+ cancel_work_sync(&phba->boot_work);
+ /* WQ might be running cancel queued mcc_work if we are not exiting */
+ if (!unload && beiscsi_hba_in_error(phba)) {
+ pbe_eq = &phwi_context->be_eq[i];
+ cancel_work_sync(&pbe_eq->mcc_work);
}
+ hwi_cleanup_port(phba);
+}
- beiscsi_ue_detect(phba);
+static void beiscsi_sess_work(struct work_struct *work)
+{
+ struct beiscsi_hba *phba;
- schedule_delayed_work(&phba->beiscsi_hw_check_task,
- msecs_to_jiffies(1000));
+ phba = container_of(work, struct beiscsi_hba, sess_work);
+ /*
+ * This work gets scheduled only in case of HBA error.
+ * Old sessions are gone so need to be re-established.
+ * iscsi_session_failure needs process context hence this work.
+ */
+ iscsi_host_for_each_session(phba->shost, beiscsi_session_fail);
}
+static void beiscsi_recover_port(struct work_struct *work)
+{
+ struct beiscsi_hba *phba;
+
+ phba = container_of(work, struct beiscsi_hba, recover_port.work);
+ beiscsi_disable_port(phba, 0);
+ beiscsi_enable_port(phba);
+}
static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
pci_channel_state_t state)
struct beiscsi_hba *phba = NULL;
phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
- phba->state |= BE_ADAPTER_PCI_ERR;
+ set_bit(BEISCSI_HBA_PCI_ERR, &phba->state);
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : EEH error detected\n");
- beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD);
+ /* first stop UE detection when PCI error detected */
+ del_timer_sync(&phba->hw_check);
+ cancel_delayed_work_sync(&phba->recover_port);
+
+ /* sessions are no longer valid, so first fail the sessions */
+ iscsi_host_for_each_session(phba->shost, beiscsi_session_fail);
+ beiscsi_disable_port(phba, 0);
if (state == pci_channel_io_perm_failure) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
- /* Wait for the CHIP Reset to complete */
- status = be_chk_reset_complete(phba);
- if (!status) {
+ status = beiscsi_check_fw_rdy(phba);
+ if (status) {
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
"BM_%d : EEH Reset Completed\n");
} else {
static void beiscsi_eeh_resume(struct pci_dev *pdev)
{
- int ret = 0, i;
- struct be_eq_obj *pbe_eq;
- struct beiscsi_hba *phba = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
+ struct beiscsi_hba *phba;
+ int ret;
phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
pci_save_state(pdev);
- if (enable_msix)
- find_num_cpus(phba);
- else
- phba->num_cpus = 1;
-
- if (enable_msix) {
- beiscsi_msix_enable(phba);
- if (!phba->msix_enabled)
- phba->num_cpus = 1;
- }
-
- ret = beiscsi_cmd_reset_function(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Reset Failed\n");
- goto ret_err;
- }
-
- ret = be_chk_reset_complete(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to get out of reset.\n");
- goto ret_err;
- }
-
- beiscsi_get_params(phba);
- phba->shost->max_id = phba->params.cxns_per_ctrl;
- phba->shost->can_queue = phba->params.ios_per_ctrl;
- ret = hwi_init_controller(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_eeh_resume -"
- "Failed to initialize beiscsi_hba.\n");
- goto ret_err;
- }
-
- for (i = 0; i < MAX_MCC_CMD; i++) {
- init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
- phba->ctrl.mcc_tag[i] = i + 1;
- phba->ctrl.mcc_tag_status[i + 1] = 0;
- phba->ctrl.mcc_tag_available++;
- }
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
-
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget,
- be_iopoll);
- }
-
- i = (phba->msix_enabled) ? i : 0;
- /* Work item for MCC handling */
- pbe_eq = &phwi_context->be_eq[i];
- INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
-
- ret = beiscsi_init_irqs(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_eeh_resume - "
- "Failed to beiscsi_init_irqs\n");
- goto ret_err;
- }
-
- hwi_enable_intr(phba);
- phba->state &= ~BE_ADAPTER_PCI_ERR;
-
- return;
-ret_err:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : AER EEH Resume Failed\n");
+ ret = beiscsi_enable_port(phba);
+ if (ret)
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : AER EEH resume failed\n");
}
static int beiscsi_dev_probe(struct pci_dev *pcidev,
struct hwi_controller *phwi_ctrlr;
struct hwi_context_memory *phwi_context;
struct be_eq_obj *pbe_eq;
- int ret = 0, i;
+ unsigned int s_handle;
+ int ret, i;
ret = beiscsi_enable_pci(pcidev);
if (ret < 0) {
if (!phba) {
dev_err(&pcidev->dev,
"beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n");
+ ret = -ENOMEM;
goto disable_pci;
}
/* Initialize Driver configuration Paramters */
beiscsi_hba_attrs_init(phba);
- phba->fw_timeout = false;
phba->mac_addr_set = false;
-
switch (pcidev->device) {
case BE_DEVICE_ID1:
case OC_DEVICE_ID1:
ret = be_ctrl_init(phba, pcidev);
if (ret) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe-"
- "Failed in be_ctrl_init\n");
+ "BM_%d : be_ctrl_init failed\n");
goto hba_free;
}
- /*
- * FUNCTION_RESET should clean up any stale info in FW for this fn
- */
- ret = beiscsi_cmd_reset_function(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Reset Failed\n");
- goto hba_free;
- }
- ret = be_chk_reset_complete(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to get out of reset.\n");
+ ret = beiscsi_init_sliport(phba);
+ if (ret)
goto hba_free;
- }
spin_lock_init(&phba->io_sgl_lock);
spin_lock_init(&phba->mgmt_sgl_lock);
- spin_lock_init(&phba->isr_lock);
spin_lock_init(&phba->async_pdu_lock);
- ret = mgmt_get_fw_config(&phba->ctrl, phba);
+ ret = beiscsi_get_fw_config(&phba->ctrl, phba);
if (ret != 0) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : Error getting fw config\n");
goto free_port;
}
- mgmt_get_port_name(&phba->ctrl, phba);
+ beiscsi_get_port_name(&phba->ctrl, phba);
beiscsi_get_params(phba);
+ beiscsi_set_uer_feature(phba);
if (enable_msix)
find_num_cpus(phba);
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : beiscsi_dev_probe-"
"Failed to allocate work queue\n");
+ ret = -ENOMEM;
goto free_twq;
}
- INIT_DELAYED_WORK(&phba->beiscsi_hw_check_task,
- beiscsi_hw_health_check);
+ INIT_DELAYED_WORK(&phba->eqd_update, beiscsi_eqd_update_work);
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
- irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget,
- be_iopoll);
+ irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, be_iopoll);
}
i = (phba->msix_enabled) ? i : 0;
/* Work item for MCC handling */
pbe_eq = &phwi_context->be_eq[i];
- INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
+ INIT_WORK(&pbe_eq->mcc_work, beiscsi_mcc_work);
ret = beiscsi_init_irqs(phba);
if (ret < 0) {
}
hwi_enable_intr(phba);
- if (iscsi_host_add(phba->shost, &phba->pcidev->dev))
+ ret = iscsi_host_add(phba->shost, &phba->pcidev->dev);
+ if (ret)
goto free_blkenbld;
- if (beiscsi_setup_boot_info(phba))
- /*
- * log error but continue, because we may not be using
- * iscsi boot.
+ /* set online bit after port is operational */
+ set_bit(BEISCSI_HBA_ONLINE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BM_%d : port online: 0x%lx\n", phba->state);
+
+ INIT_WORK(&phba->boot_work, beiscsi_boot_work);
+ ret = beiscsi_boot_get_shandle(phba, &s_handle);
+ if (ret > 0) {
+ beiscsi_start_boot_work(phba, s_handle);
+ /**
+ * Set this bit after starting the work to let
+ * probe handle it first.
+ * ASYNC event can too schedule this work.
*/
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Could not set up "
- "iSCSI boot info.\n");
+ set_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state);
+ }
- beiscsi_create_def_ifaces(phba);
- schedule_delayed_work(&phba->beiscsi_hw_check_task,
- msecs_to_jiffies(1000));
+ beiscsi_iface_create_default(phba);
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+ INIT_WORK(&phba->sess_work, beiscsi_sess_work);
+ INIT_DELAYED_WORK(&phba->recover_port, beiscsi_recover_port);
+ /**
+ * Start UE detection here. UE before this will cause stall in probe
+ * and eventually fail the probe.
+ */
+ init_timer(&phba->hw_check);
+ phba->hw_check.function = beiscsi_hw_health_check;
+ phba->hw_check.data = (unsigned long)phba;
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
"\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n");
return 0;
irq_poll_disable(&pbe_eq->iopoll);
}
free_twq:
- beiscsi_clean_port(phba);
+ hwi_cleanup_port(phba);
+ beiscsi_cleanup_port(phba);
beiscsi_free_mem(phba);
free_port:
pci_free_consistent(phba->pcidev,
return ret;
}
+static void beiscsi_remove(struct pci_dev *pcidev)
+{
+ struct beiscsi_hba *phba = NULL;
+
+ phba = pci_get_drvdata(pcidev);
+ if (!phba) {
+ dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
+ return;
+ }
+
+ /* first stop UE detection before unloading */
+ del_timer_sync(&phba->hw_check);
+ cancel_delayed_work_sync(&phba->recover_port);
+ cancel_work_sync(&phba->sess_work);
+
+ beiscsi_iface_destroy_default(phba);
+ iscsi_host_remove(phba->shost);
+ beiscsi_disable_port(phba, 1);
+
+ /* after cancelling boot_work */
+ iscsi_boot_destroy_kset(phba->boot_struct.boot_kset);
+
+ /* free all resources */
+ destroy_workqueue(phba->wq);
+ beiscsi_cleanup_port(phba);
+ beiscsi_free_mem(phba);
+
+ /* ctrl uninit */
+ beiscsi_unmap_pci_function(phba);
+ pci_free_consistent(phba->pcidev,
+ phba->ctrl.mbox_mem_alloced.size,
+ phba->ctrl.mbox_mem_alloced.va,
+ phba->ctrl.mbox_mem_alloced.dma);
+
+ pci_dev_put(phba->pcidev);
+ iscsi_host_free(phba->shost);
+ pci_disable_pcie_error_reporting(pcidev);
+ pci_set_drvdata(pcidev, NULL);
+ pci_release_regions(pcidev);
+ pci_disable_device(pcidev);
+}
+
+
static struct pci_error_handlers beiscsi_eeh_handlers = {
.error_detected = beiscsi_eeh_err_detected,
.slot_reset = beiscsi_eeh_reset,
.create_conn = beiscsi_conn_create,
.bind_conn = beiscsi_conn_bind,
.destroy_conn = iscsi_conn_teardown,
- .attr_is_visible = be2iscsi_attr_is_visible,
- .set_iface_param = be2iscsi_iface_set_param,
- .get_iface_param = be2iscsi_iface_get_param,
+ .attr_is_visible = beiscsi_attr_is_visible,
+ .set_iface_param = beiscsi_iface_set_param,
+ .get_iface_param = beiscsi_iface_get_param,
.set_param = beiscsi_set_param,
.get_conn_param = iscsi_conn_get_param,
.get_session_param = iscsi_session_get_param,
.err_handler = &beiscsi_eeh_handlers
};
-
static int __init beiscsi_module_init(void)
{
int ret;
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
#include <scsi/scsi_transport_iscsi.h>
#define DRV_NAME "be2iscsi"
-#define BUILD_STR "11.0.0.0"
+#define BUILD_STR "11.2.0.0"
#define BE_NAME "Emulex OneConnect" \
"Open-iSCSI Driver version" BUILD_STR
#define DRV_DESC BE_NAME " " "Driver"
#define BEISCSI_MAX_FRAGS_INIT 192
#define BE_NUM_MSIX_ENTRIES 1
-#define MPU_EP_CONTROL 0
-#define MPU_EP_SEMAPHORE 0xac
-#define BE2_SOFT_RESET 0x5c
-#define BE2_PCI_ONLINE0 0xb0
-#define BE2_PCI_ONLINE1 0xb4
-#define BE2_SET_RESET 0x80
-#define BE2_MPU_IRAM_ONLINE 0x00000080
-
#define BE_SENSE_INFO_SIZE 258
#define BE_ISCSI_PDU_HEADER_SIZE 64
#define BE_MIN_MEM_SIZE 16384
#define MAX_CMD_SZ 65536
#define IIOC_SCSI_DATA 0x05 /* Write Operation */
-#define INVALID_SESS_HANDLE 0xFFFFFFFF
-
-/**
- * Adapter States
- **/
-#define BE_ADAPTER_LINK_UP 0x001
-#define BE_ADAPTER_LINK_DOWN 0x002
-#define BE_ADAPTER_PCI_ERR 0x004
-#define BE_ADAPTER_CHECK_BOOT 0x008
-
-
-#define BEISCSI_CLEAN_UNLOAD 0x01
-#define BEISCSI_EEH_UNLOAD 0x02
-
-#define BE_GET_BOOT_RETRIES 45
-#define BE_GET_BOOT_TO 20
/**
* hardware needs the async PDU buffers to be posted in multiples of 8
* So have atleast 8 of them by default
struct sgl_handle **eh_sgl_hndl_base;
spinlock_t io_sgl_lock;
spinlock_t mgmt_sgl_lock;
- spinlock_t isr_lock;
spinlock_t async_pdu_lock;
unsigned int age;
struct list_head hba_queue;
struct ulp_cid_info *cid_array_info[BEISCSI_ULP_COUNT];
struct iscsi_endpoint **ep_array;
struct beiscsi_conn **conn_table;
- struct iscsi_boot_kset *boot_kset;
struct Scsi_Host *shost;
struct iscsi_iface *ipv4_iface;
struct iscsi_iface *ipv6_iface;
unsigned long ulp_supported;
} fw_config;
- unsigned int state;
+ unsigned long state;
+#define BEISCSI_HBA_ONLINE 0
+#define BEISCSI_HBA_LINK_UP 1
+#define BEISCSI_HBA_BOOT_FOUND 2
+#define BEISCSI_HBA_BOOT_WORK 3
+#define BEISCSI_HBA_UER_SUPP 4
+#define BEISCSI_HBA_PCI_ERR 5
+#define BEISCSI_HBA_FW_TIMEOUT 6
+#define BEISCSI_HBA_IN_UE 7
+#define BEISCSI_HBA_IN_TPE 8
+
+/* error bits */
+#define BEISCSI_HBA_IN_ERR ((1 << BEISCSI_HBA_PCI_ERR) | \
+ (1 << BEISCSI_HBA_FW_TIMEOUT) | \
+ (1 << BEISCSI_HBA_IN_UE) | \
+ (1 << BEISCSI_HBA_IN_TPE))
+
u8 optic_state;
- int get_boot;
- bool fw_timeout;
- bool ue_detected;
- struct delayed_work beiscsi_hw_check_task;
+ struct delayed_work eqd_update;
+ /* update EQ delay timer every 1000ms */
+#define BEISCSI_EQD_UPDATE_INTERVAL 1000
+ struct timer_list hw_check;
+ /* check for UE every 1000ms */
+#define BEISCSI_UE_DETECT_INTERVAL 1000
+ u32 ue2rp;
+ struct delayed_work recover_port;
+ struct work_struct sess_work;
bool mac_addr_set;
u8 mac_address[ETH_ALEN];
struct be_ctrl_info ctrl;
unsigned int generation;
unsigned int interface_handle;
- struct mgmt_session_info boot_sess;
struct invalidate_command_table inv_tbl[128];
struct be_aic_obj aic_obj[MAX_CPUS];
struct scatterlist *sg,
uint32_t num_sg, uint32_t xferlen,
uint32_t writedir);
+ struct boot_struct {
+ int retry;
+ unsigned int tag;
+ unsigned int s_handle;
+ struct be_dma_mem nonemb_cmd;
+ enum {
+ BEISCSI_BOOT_REOPEN_SESS = 1,
+ BEISCSI_BOOT_GET_SHANDLE,
+ BEISCSI_BOOT_GET_SINFO,
+ BEISCSI_BOOT_LOGOUT_SESS,
+ BEISCSI_BOOT_CREATE_KSET,
+ } action;
+ struct mgmt_session_info boot_sess;
+ struct iscsi_boot_kset *boot_kset;
+ } boot_struct;
+ struct work_struct boot_work;
};
+#define beiscsi_hba_in_error(phba) ((phba)->state & BEISCSI_HBA_IN_ERR)
+#define beiscsi_hba_is_online(phba) \
+ (!beiscsi_hba_in_error((phba)) && \
+ test_bit(BEISCSI_HBA_ONLINE, &phba->state))
+
struct beiscsi_session {
struct pci_pool *bhs_pool;
};
struct sgl_handle *psgl_handle;
struct beiscsi_conn *conn;
struct scsi_cmnd *scsi_cmnd;
+ int num_sg;
struct hwi_wrb_context *pwrb_context;
unsigned int cmd_sn;
unsigned int flags;
u8 max_recv_data_segment_length[32];
};
-/* void hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba, struct sol_cqe *psol);*/
-
-struct async_pdu_handle {
+struct hd_async_handle {
struct list_head link;
struct be_bus_address pa;
void *pbuffer;
- unsigned int consumed;
- unsigned char index;
- unsigned char is_header;
- unsigned short cri;
- unsigned long buffer_len;
+ u32 buffer_len;
+ u16 index;
+ u16 cri;
+ u8 is_header;
+ u8 is_final;
};
-struct hwi_async_entry {
- struct {
- unsigned char hdr_received;
- unsigned char hdr_len;
- unsigned short bytes_received;
+/**
+ * This has list of async PDUs that are waiting to be processed.
+ * Buffers live in this list for a brief duration before they get
+ * processed and posted back to hardware.
+ * Note that we don't really need one cri_wait_queue per async_entry.
+ * We need one cri_wait_queue per CRI. Its easier to manage if this
+ * is tagged along with the async_entry.
+ */
+struct hd_async_entry {
+ struct cri_wait_queue {
+ unsigned short hdr_len;
+ unsigned int bytes_received;
unsigned int bytes_needed;
struct list_head list;
- } wait_queue;
-
- struct list_head header_busy_list;
- struct list_head data_busy_list;
+ } wq;
+ /* handles posted to FW resides here */
+ struct hd_async_handle *header;
+ struct hd_async_handle *data;
};
-struct hwi_async_pdu_context {
- struct {
- struct be_bus_address pa_base;
- void *va_base;
- void *ring_base;
- struct async_pdu_handle *handle_base;
-
- unsigned int host_write_ptr;
- unsigned int ep_read_ptr;
- unsigned int writables;
-
- unsigned int free_entries;
- unsigned int busy_entries;
-
- struct list_head free_list;
- } async_header;
+struct hd_async_buf_context {
+ struct be_bus_address pa_base;
+ void *va_base;
+ void *ring_base;
+ struct hd_async_handle *handle_base;
+ u16 free_entries;
+ u32 buffer_size;
+ /**
+ * Once iSCSI layer finishes processing an async PDU, the
+ * handles used for the PDU are added to this list.
+ * They are posted back to FW in groups of 8.
+ */
+ struct list_head free_list;
+};
- struct {
- struct be_bus_address pa_base;
- void *va_base;
- void *ring_base;
- struct async_pdu_handle *handle_base;
-
- unsigned int host_write_ptr;
- unsigned int ep_read_ptr;
- unsigned int writables;
-
- unsigned int free_entries;
- unsigned int busy_entries;
- struct list_head free_list;
- } async_data;
-
- unsigned int buffer_size;
- unsigned int num_entries;
+/**
+ * hd_async_context is declared for each ULP supporting iSCSI function.
+ */
+struct hd_async_context {
+ struct hd_async_buf_context async_header;
+ struct hd_async_buf_context async_data;
+ u16 num_entries;
+ /**
+ * When unsol PDU is in, it needs to be chained till all the bytes are
+ * received and then processing is done. hd_async_entry is created
+ * based on the cid_count for each ULP. When unsol PDU comes in based
+ * on the conn_id it needs to be added to the correct async_entry wq.
+ * Below defined cid_to_async_cri_map is used to reterive the
+ * async_cri_map for a particular connection.
+ *
+ * This array is initialized after beiscsi_create_wrb_rings returns.
+ *
+ * - this method takes more memory space, fixed to 2K
+ * - any support for connections greater than this the array size needs
+ * to be incremented
+ */
#define BE_GET_ASYNC_CRI_FROM_CID(cid) (pasync_ctx->cid_to_async_cri_map[cid])
unsigned short cid_to_async_cri_map[BE_MAX_SESSION];
/**
- * This is a varying size list! Do not add anything
- * after this entry!!
+ * This is a variable size array. Don`t add anything after this field!!
*/
- struct hwi_async_entry *async_entry;
+ struct hd_async_entry *async_entry;
};
-#define PDUCQE_CODE_MASK 0x0000003F
-#define PDUCQE_DPL_MASK 0xFFFF0000
-#define PDUCQE_INDEX_MASK 0x0000FFFF
-
struct i_t_dpdu_cqe {
u32 dw[4];
} __packed;
void
free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle);
-void beiscsi_process_all_cqs(struct work_struct *work);
void beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn,
struct iscsi_task *task);
unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq, int budget);
void beiscsi_process_mcc_cq(struct beiscsi_hba *phba);
-static inline bool beiscsi_error(struct beiscsi_hba *phba)
-{
- return phba->ue_detected || phba->fw_timeout;
-}
-
struct pdu_nop_out {
u32 dw[12];
};
struct be_queue_info be_cq[MAX_CPUS - 1];
struct be_queue_info *be_wrbq;
+ /**
+ * Create array of ULP number for below entries as DEFQ
+ * will be created for both ULP if iSCSI Protocol is
+ * loaded on both ULP.
+ */
struct be_queue_info be_def_hdrq[BEISCSI_ULP_COUNT];
struct be_queue_info be_def_dataq[BEISCSI_ULP_COUNT];
- struct hwi_async_pdu_context *pasync_ctx[BEISCSI_ULP_COUNT];
+ struct hd_async_context *pasync_ctx[BEISCSI_ULP_COUNT];
};
+void beiscsi_start_boot_work(struct beiscsi_hba *phba, unsigned int s_handle);
+
/* Logging related definitions */
#define BEISCSI_LOG_INIT 0x0001 /* Initialization events */
#define BEISCSI_LOG_MBOX 0x0002 /* Mailbox Events */
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
#include "be_iscsi.h"
#include "be_main.h"
-/* UE Status Low CSR */
-static const char * const desc_ue_status_low[] = {
- "CEV",
- "CTX",
- "DBUF",
- "ERX",
- "Host",
- "MPU",
- "NDMA",
- "PTC ",
- "RDMA ",
- "RXF ",
- "RXIPS ",
- "RXULP0 ",
- "RXULP1 ",
- "RXULP2 ",
- "TIM ",
- "TPOST ",
- "TPRE ",
- "TXIPS ",
- "TXULP0 ",
- "TXULP1 ",
- "UC ",
- "WDMA ",
- "TXULP2 ",
- "HOST1 ",
- "P0_OB_LINK ",
- "P1_OB_LINK ",
- "HOST_GPIO ",
- "MBOX ",
- "AXGMAC0",
- "AXGMAC1",
- "JTAG",
- "MPU_INTPEND"
-};
-
-/* UE Status High CSR */
-static const char * const desc_ue_status_hi[] = {
- "LPCMEMHOST",
- "MGMT_MAC",
- "PCS0ONLINE",
- "MPU_IRAM",
- "PCS1ONLINE",
- "PCTL0",
- "PCTL1",
- "PMEM",
- "RR",
- "TXPB",
- "RXPP",
- "XAUI",
- "TXP",
- "ARM",
- "IPC",
- "HOST2",
- "HOST3",
- "HOST4",
- "HOST5",
- "HOST6",
- "HOST7",
- "HOST8",
- "HOST9",
- "NETC",
- "Unknown",
- "Unknown",
- "Unknown",
- "Unknown",
- "Unknown",
- "Unknown",
- "Unknown",
- "Unknown"
-};
-
-/*
- * beiscsi_ue_detec()- Detect Unrecoverable Error on adapter
- * @phba: Driver priv structure
- *
- * Read registers linked to UE and check for the UE status
- **/
-void beiscsi_ue_detect(struct beiscsi_hba *phba)
-{
- uint32_t ue_hi = 0, ue_lo = 0;
- uint32_t ue_mask_hi = 0, ue_mask_lo = 0;
- uint8_t i = 0;
-
- if (phba->ue_detected)
- return;
-
- pci_read_config_dword(phba->pcidev,
- PCICFG_UE_STATUS_LOW, &ue_lo);
- pci_read_config_dword(phba->pcidev,
- PCICFG_UE_STATUS_MASK_LOW,
- &ue_mask_lo);
- pci_read_config_dword(phba->pcidev,
- PCICFG_UE_STATUS_HIGH,
- &ue_hi);
- pci_read_config_dword(phba->pcidev,
- PCICFG_UE_STATUS_MASK_HI,
- &ue_mask_hi);
-
- ue_lo = (ue_lo & ~ue_mask_lo);
- ue_hi = (ue_hi & ~ue_mask_hi);
-
-
- if (ue_lo || ue_hi) {
- phba->ue_detected = true;
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BG_%d : Error detected on the adapter\n");
- }
-
- if (ue_lo) {
- for (i = 0; ue_lo; ue_lo >>= 1, i++) {
- if (ue_lo & 1)
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG,
- "BG_%d : UE_LOW %s bit set\n",
- desc_ue_status_low[i]);
- }
- }
-
- if (ue_hi) {
- for (i = 0; ue_hi; ue_hi >>= 1, i++) {
- if (ue_hi & 1)
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG,
- "BG_%d : UE_HIGH %s bit set\n",
- desc_ue_status_hi[i]);
- }
- }
-}
-
-int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
- struct be_set_eqd *set_eqd, int num)
+int beiscsi_modify_eq_delay(struct beiscsi_hba *phba,
+ struct be_set_eqd *set_eqd,
+ int num)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
struct be_mcc_wrb *wrb;
req = embedded_payload(wrb);
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
- OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
+ OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
req->num_eq = cpu_to_le32(num);
for (i = 0; i < num; i++) {
cpu_to_le32(set_eqd[i].delay_multiplier);
}
+ /* ignore the completion of this mbox command */
+ set_bit(MCC_TAG_STATE_IGNORE, &ctrl->ptag_state[tag].tag_state);
be_mcc_notify(phba, tag);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
-/**
- * mgmt_reopen_session()- Reopen a session based on reopen_type
- * @phba: Device priv structure instance
- * @reopen_type: Type of reopen_session FW should do.
- * @sess_handle: Session Handle of the session to be re-opened
- *
- * return
- * the TAG used for MBOX Command
- *
- **/
-unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
- unsigned int reopen_type,
- unsigned int sess_handle)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb;
- struct be_cmd_reopen_session_req *req;
- unsigned int tag;
-
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BG_%d : In bescsi_get_boot_target\n");
-
- mutex_lock(&ctrl->mbox_lock);
- wrb = alloc_mcc_wrb(phba, &tag);
- if (!wrb) {
- mutex_unlock(&ctrl->mbox_lock);
- return 0;
- }
-
- req = embedded_payload(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
- OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
- sizeof(struct be_cmd_reopen_session_resp));
-
- /* set the reopen_type,sess_handle */
- req->reopen_type = reopen_type;
- req->session_handle = sess_handle;
-
- be_mcc_notify(phba, tag);
- mutex_unlock(&ctrl->mbox_lock);
- return tag;
-}
-
-unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb;
- struct be_cmd_get_boot_target_req *req;
- unsigned int tag;
-
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BG_%d : In bescsi_get_boot_target\n");
-
- mutex_lock(&ctrl->mbox_lock);
- wrb = alloc_mcc_wrb(phba, &tag);
- if (!wrb) {
- mutex_unlock(&ctrl->mbox_lock);
- return 0;
- }
-
- req = embedded_payload(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
- OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
- sizeof(struct be_cmd_get_boot_target_resp));
-
- be_mcc_notify(phba, tag);
- mutex_unlock(&ctrl->mbox_lock);
- return tag;
-}
-
-unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
- u32 boot_session_handle,
- struct be_dma_mem *nonemb_cmd)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb;
- unsigned int tag;
- struct be_cmd_get_session_req *req;
- struct be_cmd_get_session_resp *resp;
- struct be_sge *sge;
-
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BG_%d : In beiscsi_get_session_info\n");
-
- mutex_lock(&ctrl->mbox_lock);
- wrb = alloc_mcc_wrb(phba, &tag);
- if (!wrb) {
- mutex_unlock(&ctrl->mbox_lock);
- return 0;
- }
-
- nonemb_cmd->size = sizeof(*resp);
- req = nonemb_cmd->va;
- memset(req, 0, sizeof(*req));
- sge = nonembedded_sgl(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
- OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
- sizeof(*resp));
- req->session_handle = boot_session_handle;
- sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
- sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
- sge->len = cpu_to_le32(nonemb_cmd->size);
-
- be_mcc_notify(phba, tag);
- mutex_unlock(&ctrl->mbox_lock);
- return tag;
-}
-
-/**
- * mgmt_get_port_name()- Get port name for the function
- * @ctrl: ptr to Ctrl Info
- * @phba: ptr to the dev priv structure
- *
- * Get the alphanumeric character for port
- *
- **/
-int mgmt_get_port_name(struct be_ctrl_info *ctrl,
- struct beiscsi_hba *phba)
-{
- int ret = 0;
- struct be_mcc_wrb *wrb;
- struct be_cmd_get_port_name *ioctl;
-
- mutex_lock(&ctrl->mbox_lock);
- wrb = wrb_from_mbox(&ctrl->mbox_mem);
- memset(wrb, 0, sizeof(*wrb));
- ioctl = embedded_payload(wrb);
-
- be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
- be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
- OPCODE_COMMON_GET_PORT_NAME,
- EMBED_MBX_MAX_PAYLOAD_SIZE);
- ret = be_mbox_notify(ctrl);
- phba->port_name = 0;
- if (!ret) {
- phba->port_name = ioctl->p.resp.port_names >>
- (phba->fw_config.phys_port * 8) & 0xff;
- } else {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BG_%d : GET_PORT_NAME ret 0x%x status 0x%x\n",
- ret, ioctl->h.resp_hdr.status);
- }
-
- if (phba->port_name == 0)
- phba->port_name = '?';
-
- mutex_unlock(&ctrl->mbox_lock);
- return ret;
-}
-
-/**
- * mgmt_get_fw_config()- Get the FW config for the function
- * @ctrl: ptr to Ctrl Info
- * @phba: ptr to the dev priv structure
- *
- * Get the FW config and resources available for the function.
- * The resources are created based on the count received here.
- *
- * return
- * Success: 0
- * Failure: Non-Zero Value
- **/
-int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
- struct beiscsi_hba *phba)
-{
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
- struct be_fw_cfg *pfw_cfg = embedded_payload(wrb);
- uint32_t cid_count, icd_count;
- int status = -EINVAL;
- uint8_t ulp_num = 0;
-
- mutex_lock(&ctrl->mbox_lock);
- memset(wrb, 0, sizeof(*wrb));
- be_wrb_hdr_prepare(wrb, sizeof(*pfw_cfg), true, 0);
-
- be_cmd_hdr_prepare(&pfw_cfg->hdr, CMD_SUBSYSTEM_COMMON,
- OPCODE_COMMON_QUERY_FIRMWARE_CONFIG,
- EMBED_MBX_MAX_PAYLOAD_SIZE);
-
- if (be_mbox_notify(ctrl)) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : Failed in mgmt_get_fw_config\n");
- goto fail_init;
- }
-
- /* FW response formats depend on port id */
- phba->fw_config.phys_port = pfw_cfg->phys_port;
- if (phba->fw_config.phys_port >= BEISCSI_PHYS_PORT_MAX) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : invalid physical port id %d\n",
- phba->fw_config.phys_port);
- goto fail_init;
- }
-
- /* populate and check FW config against min and max values */
- if (!is_chip_be2_be3r(phba)) {
- phba->fw_config.eqid_count = pfw_cfg->eqid_count;
- phba->fw_config.cqid_count = pfw_cfg->cqid_count;
- if (phba->fw_config.eqid_count == 0 ||
- phba->fw_config.eqid_count > 2048) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : invalid EQ count %d\n",
- phba->fw_config.eqid_count);
- goto fail_init;
- }
- if (phba->fw_config.cqid_count == 0 ||
- phba->fw_config.cqid_count > 4096) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : invalid CQ count %d\n",
- phba->fw_config.cqid_count);
- goto fail_init;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BG_%d : EQ_Count : %d CQ_Count : %d\n",
- phba->fw_config.eqid_count,
- phba->fw_config.cqid_count);
- }
-
- /**
- * Check on which all ULP iSCSI Protocol is loaded.
- * Set the Bit for those ULP. This set flag is used
- * at all places in the code to check on which ULP
- * iSCSi Protocol is loaded
- **/
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (pfw_cfg->ulp[ulp_num].ulp_mode &
- BEISCSI_ULP_ISCSI_INI_MODE) {
- set_bit(ulp_num, &phba->fw_config.ulp_supported);
-
- /* Get the CID, ICD and Chain count for each ULP */
- phba->fw_config.iscsi_cid_start[ulp_num] =
- pfw_cfg->ulp[ulp_num].sq_base;
- phba->fw_config.iscsi_cid_count[ulp_num] =
- pfw_cfg->ulp[ulp_num].sq_count;
-
- phba->fw_config.iscsi_icd_start[ulp_num] =
- pfw_cfg->ulp[ulp_num].icd_base;
- phba->fw_config.iscsi_icd_count[ulp_num] =
- pfw_cfg->ulp[ulp_num].icd_count;
-
- phba->fw_config.iscsi_chain_start[ulp_num] =
- pfw_cfg->chain_icd[ulp_num].chain_base;
- phba->fw_config.iscsi_chain_count[ulp_num] =
- pfw_cfg->chain_icd[ulp_num].chain_count;
-
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BG_%d : Function loaded on ULP : %d\n"
- "\tiscsi_cid_count : %d\n"
- "\tiscsi_cid_start : %d\n"
- "\t iscsi_icd_count : %d\n"
- "\t iscsi_icd_start : %d\n",
- ulp_num,
- phba->fw_config.
- iscsi_cid_count[ulp_num],
- phba->fw_config.
- iscsi_cid_start[ulp_num],
- phba->fw_config.
- iscsi_icd_count[ulp_num],
- phba->fw_config.
- iscsi_icd_start[ulp_num]);
- }
- }
-
- if (phba->fw_config.ulp_supported == 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : iSCSI initiator mode not set: ULP0 %x ULP1 %x\n",
- pfw_cfg->ulp[BEISCSI_ULP0].ulp_mode,
- pfw_cfg->ulp[BEISCSI_ULP1].ulp_mode);
- goto fail_init;
- }
-
- /**
- * ICD is shared among ULPs. Use icd_count of any one loaded ULP
- **/
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
- break;
- icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
- if (icd_count == 0 || icd_count > 65536) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d: invalid ICD count %d\n", icd_count);
- goto fail_init;
- }
-
- cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
- BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
- if (cid_count == 0 || cid_count > 4096) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d: invalid CID count %d\n", cid_count);
- goto fail_init;
- }
-
- /**
- * Check FW is dual ULP aware i.e. can handle either
- * of the protocols.
- */
- phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode &
- BEISCSI_FUNC_DUA_MODE);
-
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BG_%d : DUA Mode : 0x%x\n",
- phba->fw_config.dual_ulp_aware);
-
- /* all set, continue using this FW config */
- status = 0;
-fail_init:
- mutex_unlock(&ctrl->mbox_lock);
- return status;
-}
-
-int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
- struct beiscsi_hba *phba)
-{
- struct be_dma_mem nonemb_cmd;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
- struct be_mgmt_controller_attributes *req;
- struct be_sge *sge = nonembedded_sgl(wrb);
- int status = 0;
-
- nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
- sizeof(struct be_mgmt_controller_attributes),
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : Failed to allocate memory for "
- "mgmt_check_supported_fw\n");
- return -ENOMEM;
- }
- nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
- req = nonemb_cmd.va;
- memset(req, 0, sizeof(*req));
- mutex_lock(&ctrl->mbox_lock);
- memset(wrb, 0, sizeof(*wrb));
- be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
- OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
- sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
- sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
- sge->len = cpu_to_le32(nonemb_cmd.size);
- status = be_mbox_notify(ctrl);
- if (!status) {
- struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BG_%d : Firmware Version of CMD : %s\n"
- "Firmware Version is : %s\n"
- "Developer Build, not performing version check...\n",
- resp->params.hba_attribs
- .flashrom_version_string,
- resp->params.hba_attribs.
- firmware_version_string);
-
- phba->fw_config.iscsi_features =
- resp->params.hba_attribs.iscsi_features;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : phba->fw_config.iscsi_features = %d\n",
- phba->fw_config.iscsi_features);
- memcpy(phba->fw_ver_str, resp->params.hba_attribs.
- firmware_version_string, BEISCSI_VER_STRLEN);
- } else
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BG_%d : Failed in mgmt_check_supported_fw\n");
- mutex_unlock(&ctrl->mbox_lock);
- if (nonemb_cmd.va)
- pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
-
- return status;
-}
-
unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
struct beiscsi_hba *phba,
struct bsg_job *job,
bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
mutex_unlock(&ctrl->mbox_lock);
- return -ENOSYS;
+ return -EPERM;
}
wrb = alloc_mcc_wrb(phba, &tag);
return tag;
}
-/**
- * mgmt_epfw_cleanup()- Inform FW to cleanup data structures.
- * @phba: pointer to dev priv structure
- * @ulp_num: ULP number.
- *
- * return
- * Success: 0
- * Failure: Non-Zero Value
- **/
-int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb;
- struct iscsi_cleanup_req *req;
- unsigned int tag;
- int status;
-
- mutex_lock(&ctrl->mbox_lock);
- wrb = alloc_mcc_wrb(phba, &tag);
- if (!wrb) {
- mutex_unlock(&ctrl->mbox_lock);
- return -EBUSY;
- }
-
- req = embedded_payload(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
- OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
-
- req->chute = (1 << ulp_num);
- req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba, ulp_num));
- req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba, ulp_num));
-
- be_mcc_notify(phba, tag);
- status = be_mcc_compl_poll(phba, tag);
- if (status)
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
- "BG_%d : mgmt_epfw_cleanup , FAILED\n");
- mutex_unlock(&ctrl->mbox_lock);
- return status;
-}
-
unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
struct invalidate_command_table *inv_tbl,
unsigned int num_invalidate, unsigned int cid,
nonemb_cmd->size);
if (dst_addr->sa_family == PF_INET) {
__be32 s_addr = daddr_in->sin_addr.s_addr;
- req->ip_address.ip_type = BE2_IPV4;
+ req->ip_address.ip_type = BEISCSI_IP_TYPE_V4;
req->ip_address.addr[0] = s_addr & 0x000000ff;
req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;
req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;
req->tcp_port = ntohs(daddr_in->sin_port);
beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
- beiscsi_ep->ip_type = BE2_IPV4;
+ beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V4;
} else {
/* else its PF_INET6 family */
- req->ip_address.ip_type = BE2_IPV6;
+ req->ip_address.ip_type = BEISCSI_IP_TYPE_V6;
memcpy(&req->ip_address.addr,
&daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
req->tcp_port = ntohs(daddr_in6->sin6_port);
beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
memcpy(&beiscsi_ep->dst6_addr,
&daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
- beiscsi_ep->ip_type = BE2_IPV6;
+ beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V6;
}
req->cid = cid;
i = phba->nxt_cqid++;
if (!is_chip_be2_be3r(phba)) {
req->hdr.version = MBX_CMD_VER1;
- req->tcp_window_size = 0;
+ req->tcp_window_size = 0x8000;
req->tcp_window_scale_count = 2;
}
return tag;
}
-unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb;
- struct be_cmd_get_all_if_id_req *req;
- struct be_cmd_get_all_if_id_req *pbe_allid;
- unsigned int tag;
- int status = 0;
-
- if (mutex_lock_interruptible(&ctrl->mbox_lock))
- return -EINTR;
- wrb = alloc_mcc_wrb(phba, &tag);
- if (!wrb) {
- mutex_unlock(&ctrl->mbox_lock);
- return -ENOMEM;
- }
-
- req = embedded_payload(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
- OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
- sizeof(*req));
- be_mcc_notify(phba, tag);
- mutex_unlock(&ctrl->mbox_lock);
-
- status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
- if (status) {
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BG_%d : Failed in mgmt_get_all_if_id\n");
- return -EBUSY;
- }
-
- pbe_allid = embedded_payload(wrb);
- phba->interface_handle = pbe_allid->if_hndl_list[0];
-
- return status;
-}
-
/*
* mgmt_exec_nonemb_cmd()- Execute Non Embedded MBX Cmd
* @phba: Driver priv structure
}
cmd->size = size;
be_cmd_hdr_prepare(cmd->va, CMD_SUBSYSTEM_ISCSI, iscsi_cmd, size);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BG_%d : subsystem iSCSI cmd %d size %d\n",
+ iscsi_cmd, size);
return 0;
}
-static int
-mgmt_static_ip_modify(struct beiscsi_hba *phba,
- struct be_cmd_get_if_info_resp *if_info,
- struct iscsi_iface_param_info *ip_param,
- struct iscsi_iface_param_info *subnet_param,
- uint32_t ip_action)
+unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba)
{
- struct be_cmd_set_ip_addr_req *req;
- struct be_dma_mem nonemb_cmd;
- uint32_t ip_type;
- int rc;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_get_all_if_id_req *req;
+ struct be_cmd_get_all_if_id_req *pbe_allid;
+ unsigned int tag;
+ int status = 0;
- rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
- OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
- sizeof(*req));
- if (rc)
- return rc;
+ if (mutex_lock_interruptible(&ctrl->mbox_lock))
+ return -EINTR;
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return -ENOMEM;
+ }
- ip_type = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
- BE2_IPV6 : BE2_IPV4 ;
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
+ sizeof(*req));
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
- req = nonemb_cmd.va;
- req->ip_params.record_entry_count = 1;
- req->ip_params.ip_record.action = ip_action;
- req->ip_params.ip_record.interface_hndl =
- phba->interface_handle;
- req->ip_params.ip_record.ip_addr.size_of_structure =
- sizeof(struct be_ip_addr_subnet_format);
- req->ip_params.ip_record.ip_addr.ip_type = ip_type;
+ status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
+ if (status) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : %s failed: %d\n", __func__, status);
+ return -EBUSY;
+ }
- if (ip_action == IP_ACTION_ADD) {
- memcpy(req->ip_params.ip_record.ip_addr.addr, ip_param->value,
- sizeof(req->ip_params.ip_record.ip_addr.addr));
+ pbe_allid = embedded_payload(wrb);
+ /* we now support only one interface per function */
+ phba->interface_handle = pbe_allid->if_hndl_list[0];
- if (subnet_param)
- memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
- subnet_param->value,
- sizeof(req->ip_params.ip_record.ip_addr.subnet_mask));
- } else {
- memcpy(req->ip_params.ip_record.ip_addr.addr,
- if_info->ip_addr.addr,
- sizeof(req->ip_params.ip_record.ip_addr.addr));
+ return status;
+}
- memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
- if_info->ip_addr.subnet_mask,
- sizeof(req->ip_params.ip_record.ip_addr.subnet_mask));
- }
+static inline bool beiscsi_if_zero_ip(u8 *ip, u32 ip_type)
+{
+ u32 len;
- rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
- if (rc < 0)
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BG_%d : Failed to Modify existing IP Address\n");
- return rc;
+ len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
+ while (len && !ip[len - 1])
+ len--;
+ return (len == 0);
}
-static int mgmt_modify_gateway(struct beiscsi_hba *phba, uint8_t *gt_addr,
- uint32_t gtway_action, uint32_t param_len)
+static int beiscsi_if_mod_gw(struct beiscsi_hba *phba,
+ u32 action, u32 ip_type, u8 *gw)
{
struct be_cmd_set_def_gateway_req *req;
struct be_dma_mem nonemb_cmd;
int rt_val;
-
rt_val = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,
sizeof(*req));
return rt_val;
req = nonemb_cmd.va;
- req->action = gtway_action;
- req->ip_addr.ip_type = BE2_IPV4;
+ req->action = action;
+ req->ip_addr.ip_type = ip_type;
+ memcpy(req->ip_addr.addr, gw,
+ (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN);
+ return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+}
- memcpy(req->ip_addr.addr, gt_addr, sizeof(req->ip_addr.addr));
+int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw)
+{
+ struct be_cmd_get_def_gateway_resp gw_resp;
+ int rt_val;
- return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+ memset(&gw_resp, 0, sizeof(gw_resp));
+ rt_val = beiscsi_if_get_gw(phba, ip_type, &gw_resp);
+ if (rt_val) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to Get Gateway Addr\n");
+ return rt_val;
+ }
+
+ if (!beiscsi_if_zero_ip(gw_resp.ip_addr.addr, ip_type)) {
+ rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_DEL, ip_type,
+ gw_resp.ip_addr.addr);
+ if (rt_val) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to clear Gateway Addr Set\n");
+ return rt_val;
+ }
+ }
+
+ rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_ADD, ip_type, gw);
+ if (rt_val)
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to Set Gateway Addr\n");
+
+ return rt_val;
}
-int mgmt_set_ip(struct beiscsi_hba *phba,
- struct iscsi_iface_param_info *ip_param,
- struct iscsi_iface_param_info *subnet_param,
- uint32_t boot_proto)
+int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
+ struct be_cmd_get_def_gateway_resp *resp)
{
- struct be_cmd_get_def_gateway_resp gtway_addr_set;
- struct be_cmd_get_if_info_resp *if_info;
- struct be_cmd_set_dhcp_req *dhcpreq;
- struct be_cmd_rel_dhcp_req *reldhcp;
+ struct be_cmd_get_def_gateway_req *req;
struct be_dma_mem nonemb_cmd;
- uint8_t *gtway_addr;
- uint32_t ip_type;
int rc;
- rc = mgmt_get_all_if_id(phba);
+ rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
+ OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
+ sizeof(*resp));
if (rc)
return rc;
- ip_type = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
- BE2_IPV6 : BE2_IPV4 ;
+ req = nonemb_cmd.va;
+ req->ip_type = ip_type;
+
+ return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, resp,
+ sizeof(*resp));
+}
- rc = mgmt_get_if_info(phba, ip_type, &if_info);
+static int
+beiscsi_if_clr_ip(struct beiscsi_hba *phba,
+ struct be_cmd_get_if_info_resp *if_info)
+{
+ struct be_cmd_set_ip_addr_req *req;
+ struct be_dma_mem nonemb_cmd;
+ int rc;
+
+ rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
+ OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
+ sizeof(*req));
if (rc)
return rc;
- if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
- if (if_info->dhcp_state) {
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BG_%d : DHCP Already Enabled\n");
- goto exit;
- }
- /* The ip_param->len is 1 in DHCP case. Setting
- proper IP len as this it is used while
- freeing the Static IP.
- */
- ip_param->len = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
- IP_V6_LEN : IP_V4_LEN;
-
- } else {
- if (if_info->dhcp_state) {
+ req = nonemb_cmd.va;
+ req->ip_params.record_entry_count = 1;
+ req->ip_params.ip_record.action = IP_ACTION_DEL;
+ req->ip_params.ip_record.interface_hndl =
+ phba->interface_handle;
+ req->ip_params.ip_record.ip_addr.size_of_structure =
+ sizeof(struct be_ip_addr_subnet_format);
+ req->ip_params.ip_record.ip_addr.ip_type = if_info->ip_addr.ip_type;
+ memcpy(req->ip_params.ip_record.ip_addr.addr,
+ if_info->ip_addr.addr,
+ sizeof(if_info->ip_addr.addr));
+ memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
+ if_info->ip_addr.subnet_mask,
+ sizeof(if_info->ip_addr.subnet_mask));
+ rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+ if (rc < 0 || req->ip_params.ip_record.status) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BG_%d : failed to clear IP: rc %d status %d\n",
+ rc, req->ip_params.ip_record.status);
+ }
+ return rc;
+}
- memset(if_info, 0, sizeof(*if_info));
- rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
- OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
- sizeof(*reldhcp));
+static int
+beiscsi_if_set_ip(struct beiscsi_hba *phba, u8 *ip,
+ u8 *subnet, u32 ip_type)
+{
+ struct be_cmd_set_ip_addr_req *req;
+ struct be_dma_mem nonemb_cmd;
+ uint32_t ip_len;
+ int rc;
- if (rc)
- goto exit;
+ rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
+ OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
+ sizeof(*req));
+ if (rc)
+ return rc;
- reldhcp = nonemb_cmd.va;
- reldhcp->interface_hndl = phba->interface_handle;
- reldhcp->ip_type = ip_type;
+ req = nonemb_cmd.va;
+ req->ip_params.record_entry_count = 1;
+ req->ip_params.ip_record.action = IP_ACTION_ADD;
+ req->ip_params.ip_record.interface_hndl =
+ phba->interface_handle;
+ req->ip_params.ip_record.ip_addr.size_of_structure =
+ sizeof(struct be_ip_addr_subnet_format);
+ req->ip_params.ip_record.ip_addr.ip_type = ip_type;
+ ip_len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
+ memcpy(req->ip_params.ip_record.ip_addr.addr, ip, ip_len);
+ if (subnet)
+ memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
+ subnet, ip_len);
- rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
- if (rc < 0) {
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_CONFIG,
- "BG_%d : Failed to Delete existing dhcp\n");
- goto exit;
- }
- }
+ rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+ /**
+ * In some cases, host needs to look into individual record status
+ * even though FW reported success for that IOCTL.
+ */
+ if (rc < 0 || req->ip_params.ip_record.status) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : failed to set IP: rc %d status %d\n",
+ rc, req->ip_params.ip_record.status);
+ if (req->ip_params.ip_record.status)
+ rc = -EINVAL;
}
+ return rc;
+}
- /* Delete the Static IP Set */
- if (if_info->ip_addr.addr[0]) {
- rc = mgmt_static_ip_modify(phba, if_info, ip_param, NULL,
- IP_ACTION_DEL);
+int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
+ u8 *ip, u8 *subnet)
+{
+ struct be_cmd_get_if_info_resp *if_info;
+ struct be_cmd_rel_dhcp_req *reldhcp;
+ struct be_dma_mem nonemb_cmd;
+ int rc;
+
+ rc = beiscsi_if_get_info(phba, ip_type, &if_info);
+ if (rc)
+ return rc;
+
+ if (if_info->dhcp_state) {
+ rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
+ OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
+ sizeof(*reldhcp));
if (rc)
goto exit;
- }
- /* Delete the Gateway settings if mode change is to DHCP */
- if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
- memset(>way_addr_set, 0, sizeof(gtway_addr_set));
- rc = mgmt_get_gateway(phba, BE2_IPV4, >way_addr_set);
- if (rc) {
+ reldhcp = nonemb_cmd.va;
+ reldhcp->interface_hndl = phba->interface_handle;
+ reldhcp->ip_type = ip_type;
+ rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
+ if (rc < 0) {
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BG_%d : Failed to Get Gateway Addr\n");
+ "BG_%d : failed to release existing DHCP: %d\n",
+ rc);
goto exit;
}
-
- if (gtway_addr_set.ip_addr.addr[0]) {
- gtway_addr = (uint8_t *)>way_addr_set.ip_addr.addr;
- rc = mgmt_modify_gateway(phba, gtway_addr,
- IP_ACTION_DEL, IP_V4_LEN);
-
- if (rc) {
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_CONFIG,
- "BG_%d : Failed to clear Gateway Addr Set\n");
- goto exit;
- }
- }
}
- /* Set Adapter to DHCP/Static Mode */
- if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
- rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
- OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
- sizeof(*dhcpreq));
+ /* first delete any IP set */
+ if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
+ rc = beiscsi_if_clr_ip(phba, if_info);
if (rc)
goto exit;
-
- dhcpreq = nonemb_cmd.va;
- dhcpreq->flags = BLOCKING;
- dhcpreq->retry_count = 1;
- dhcpreq->interface_hndl = phba->interface_handle;
- dhcpreq->ip_type = BE2_DHCP_V4;
-
- rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
- } else {
- rc = mgmt_static_ip_modify(phba, if_info, ip_param,
- subnet_param, IP_ACTION_ADD);
}
+ /* if ip == NULL then this is called just to release DHCP IP */
+ if (ip)
+ rc = beiscsi_if_set_ip(phba, ip, subnet, ip_type);
exit:
kfree(if_info);
return rc;
}
-int mgmt_set_gateway(struct beiscsi_hba *phba,
- struct iscsi_iface_param_info *gateway_param)
+int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type)
{
- struct be_cmd_get_def_gateway_resp gtway_addr_set;
- uint8_t *gtway_addr;
- int rt_val;
+ struct be_cmd_get_def_gateway_resp gw_resp;
+ struct be_cmd_get_if_info_resp *if_info;
+ struct be_cmd_set_dhcp_req *dhcpreq;
+ struct be_dma_mem nonemb_cmd;
+ u8 *gw;
+ int rc;
- memset(>way_addr_set, 0, sizeof(gtway_addr_set));
- rt_val = mgmt_get_gateway(phba, BE2_IPV4, >way_addr_set);
- if (rt_val) {
+ rc = beiscsi_if_get_info(phba, ip_type, &if_info);
+ if (rc)
+ return rc;
+
+ if (if_info->dhcp_state) {
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BG_%d : Failed to Get Gateway Addr\n");
- return rt_val;
+ "BG_%d : DHCP Already Enabled\n");
+ goto exit;
}
- if (gtway_addr_set.ip_addr.addr[0]) {
- gtway_addr = (uint8_t *)>way_addr_set.ip_addr.addr;
- rt_val = mgmt_modify_gateway(phba, gtway_addr, IP_ACTION_DEL,
- gateway_param->len);
- if (rt_val) {
+ /* first delete any IP set */
+ if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
+ rc = beiscsi_if_clr_ip(phba, if_info);
+ if (rc)
+ goto exit;
+ }
+
+ /* delete gateway settings if mode change is to DHCP */
+ memset(&gw_resp, 0, sizeof(gw_resp));
+ /* use ip_type provided in if_info */
+ rc = beiscsi_if_get_gw(phba, if_info->ip_addr.ip_type, &gw_resp);
+ if (rc) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to Get Gateway Addr\n");
+ goto exit;
+ }
+ gw = (u8 *)&gw_resp.ip_addr.addr;
+ if (!beiscsi_if_zero_ip(gw, if_info->ip_addr.ip_type)) {
+ rc = beiscsi_if_mod_gw(phba, IP_ACTION_DEL,
+ if_info->ip_addr.ip_type, gw);
+ if (rc) {
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
"BG_%d : Failed to clear Gateway Addr Set\n");
- return rt_val;
+ goto exit;
}
}
- gtway_addr = (uint8_t *)&gateway_param->value;
- rt_val = mgmt_modify_gateway(phba, gtway_addr, IP_ACTION_ADD,
- gateway_param->len);
+ rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
+ OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
+ sizeof(*dhcpreq));
+ if (rc)
+ goto exit;
- if (rt_val)
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BG_%d : Failed to Set Gateway Addr\n");
+ dhcpreq = nonemb_cmd.va;
+ dhcpreq->flags = 1; /* 1 - blocking; 0 - non-blocking */
+ dhcpreq->retry_count = 1;
+ dhcpreq->interface_hndl = phba->interface_handle;
+ dhcpreq->ip_type = ip_type;
+ rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
- return rt_val;
+exit:
+ kfree(if_info);
+ return rc;
}
-int mgmt_get_gateway(struct beiscsi_hba *phba, int ip_type,
- struct be_cmd_get_def_gateway_resp *gateway)
+/**
+ * beiscsi_if_set_vlan()- Issue and wait for CMD completion
+ * @phba: device private structure instance
+ * @vlan_tag: VLAN tag
+ *
+ * Issue the MBX Cmd and wait for the completion of the
+ * command.
+ *
+ * returns
+ * Success: 0
+ * Failure: Non-Xero Value
+ **/
+int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag)
{
- struct be_cmd_get_def_gateway_req *req;
- struct be_dma_mem nonemb_cmd;
int rc;
+ unsigned int tag;
- rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
- OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
- sizeof(*gateway));
- if (rc)
- return rc;
-
- req = nonemb_cmd.va;
- req->ip_type = ip_type;
+ tag = be_cmd_set_vlan(phba, vlan_tag);
+ if (!tag) {
+ beiscsi_log(phba, KERN_ERR,
+ (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+ "BG_%d : VLAN Setting Failed\n");
+ return -EBUSY;
+ }
- return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, gateway,
- sizeof(*gateway));
+ rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
+ if (rc) {
+ beiscsi_log(phba, KERN_ERR,
+ (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+ "BS_%d : VLAN MBX Cmd Failed\n");
+ return rc;
+ }
+ return rc;
}
-int mgmt_get_if_info(struct beiscsi_hba *phba, int ip_type,
- struct be_cmd_get_if_info_resp **if_info)
+
+int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
+ struct be_cmd_get_if_info_resp **if_info)
{
struct be_cmd_get_if_info_req *req;
struct be_dma_mem nonemb_cmd;
uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
int rc;
- rc = mgmt_get_all_if_id(phba);
+ rc = beiscsi_if_get_handle(phba);
if (rc)
return rc;
return tag;
}
+static void beiscsi_boot_process_compl(struct beiscsi_hba *phba,
+ unsigned int tag)
+{
+ struct be_cmd_get_boot_target_resp *boot_resp;
+ struct be_cmd_resp_logout_fw_sess *logo_resp;
+ struct be_cmd_get_session_resp *sess_resp;
+ struct be_mcc_wrb *wrb;
+ struct boot_struct *bs;
+ int boot_work, status;
+
+ if (!test_bit(BEISCSI_HBA_BOOT_WORK, &phba->state)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : %s no boot work %lx\n",
+ __func__, phba->state);
+ return;
+ }
+
+ if (phba->boot_struct.tag != tag) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : %s tag mismatch %d:%d\n",
+ __func__, tag, phba->boot_struct.tag);
+ return;
+ }
+ bs = &phba->boot_struct;
+ boot_work = 1;
+ status = 0;
+ switch (bs->action) {
+ case BEISCSI_BOOT_REOPEN_SESS:
+ status = __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
+ if (!status)
+ bs->action = BEISCSI_BOOT_GET_SHANDLE;
+ else
+ bs->retry--;
+ break;
+ case BEISCSI_BOOT_GET_SHANDLE:
+ status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
+ if (!status) {
+ boot_resp = embedded_payload(wrb);
+ bs->s_handle = boot_resp->boot_session_handle;
+ }
+ if (bs->s_handle == BE_BOOT_INVALID_SHANDLE) {
+ bs->action = BEISCSI_BOOT_REOPEN_SESS;
+ bs->retry--;
+ } else {
+ bs->action = BEISCSI_BOOT_GET_SINFO;
+ }
+ break;
+ case BEISCSI_BOOT_GET_SINFO:
+ status = __beiscsi_mcc_compl_status(phba, tag, NULL,
+ &bs->nonemb_cmd);
+ if (!status) {
+ sess_resp = bs->nonemb_cmd.va;
+ memcpy(&bs->boot_sess, &sess_resp->session_info,
+ sizeof(struct mgmt_session_info));
+ bs->action = BEISCSI_BOOT_LOGOUT_SESS;
+ } else {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : get boot session info error : 0x%x\n",
+ status);
+ boot_work = 0;
+ }
+ pci_free_consistent(phba->ctrl.pdev, bs->nonemb_cmd.size,
+ bs->nonemb_cmd.va, bs->nonemb_cmd.dma);
+ bs->nonemb_cmd.va = NULL;
+ break;
+ case BEISCSI_BOOT_LOGOUT_SESS:
+ status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
+ if (!status) {
+ logo_resp = embedded_payload(wrb);
+ if (logo_resp->session_status != BE_SESS_STATUS_CLOSE) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : FW boot session logout error : 0x%x\n",
+ logo_resp->session_status);
+ }
+ }
+ /* continue to create boot_kset even if logout failed? */
+ bs->action = BEISCSI_BOOT_CREATE_KSET;
+ break;
+ default:
+ break;
+ }
+
+ /* clear the tag so no other completion matches this tag */
+ bs->tag = 0;
+ if (!bs->retry) {
+ boot_work = 0;
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : failed to setup boot target: status %d action %d\n",
+ status, bs->action);
+ }
+ if (!boot_work) {
+ /* wait for next event to start boot_work */
+ clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
+ return;
+ }
+ schedule_work(&phba->boot_work);
+}
+
/**
- * be_mgmt_get_boot_shandle()- Get the session handle
- * @phba: device priv structure instance
- * @s_handle: session handle returned for boot session.
+ * beiscsi_boot_logout_sess()- Logout from boot FW session
+ * @phba: Device priv structure instance
+ *
+ * return
+ * the TAG used for MBOX Command
*
- * Get the boot target session handle. In case of
- * crashdump mode driver has to issue and MBX Cmd
- * for FW to login to boot target
+ */
+unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_logout_fw_sess *req;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
+ sizeof(struct be_cmd_req_logout_fw_sess));
+ /* Use the session handle copied into boot_sess */
+ req->session_handle = phba->boot_struct.boot_sess.session_handle;
+
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+
+ return tag;
+}
+/**
+ * beiscsi_boot_reopen_sess()- Reopen boot session
+ * @phba: Device priv structure instance
*
* return
- * Success: 0
- * Failure: Non-Zero value
+ * the TAG used for MBOX Command
*
**/
-int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
- unsigned int *s_handle)
+unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba)
{
- struct be_cmd_get_boot_target_resp *boot_resp;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
struct be_mcc_wrb *wrb;
+ struct be_cmd_reopen_session_req *req;
unsigned int tag;
- uint8_t boot_retry = 3;
- int rc;
- do {
- /* Get the Boot Target Session Handle and Count*/
- tag = mgmt_get_boot_target(phba);
- if (!tag) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
- "BG_%d : Getting Boot Target Info Failed\n");
- return -EAGAIN;
- }
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
- rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
- if (rc) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d : MBX CMD get_boot_target Failed\n");
- return -EBUSY;
- }
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
+ sizeof(struct be_cmd_reopen_session_resp));
+ req->reopen_type = BE_REOPEN_BOOT_SESSIONS;
+ req->session_handle = BE_BOOT_INVALID_SHANDLE;
- boot_resp = embedded_payload(wrb);
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
- /* Check if the there are any Boot targets configured */
- if (!boot_resp->boot_session_count) {
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d ;No boot targets configured\n");
- return -ENXIO;
- }
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
- /* FW returns the session handle of the boot session */
- if (boot_resp->boot_session_handle != INVALID_SESS_HANDLE) {
- *s_handle = boot_resp->boot_session_handle;
- return 0;
- }
- /* Issue MBX Cmd to FW to login to the boot target */
- tag = mgmt_reopen_session(phba, BE_REOPEN_BOOT_SESSIONS,
- INVALID_SESS_HANDLE);
- if (!tag) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d : mgmt_reopen_session Failed\n");
- return -EAGAIN;
- }
+/**
+ * beiscsi_boot_get_sinfo()- Get boot session info
+ * @phba: device priv structure instance
+ *
+ * Fetches the boot_struct.s_handle info from FW.
+ * return
+ * the TAG used for MBOX Command
+ *
+ **/
+unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_cmd_get_session_resp *resp;
+ struct be_cmd_get_session_req *req;
+ struct be_dma_mem *nonemb_cmd;
+ struct be_mcc_wrb *wrb;
+ struct be_sge *sge;
+ unsigned int tag;
- rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
- if (rc) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d : mgmt_reopen_session Failed");
- return rc;
- }
- } while (--boot_retry);
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ nonemb_cmd = &phba->boot_struct.nonemb_cmd;
+ nonemb_cmd->size = sizeof(*resp);
+ nonemb_cmd->va = pci_alloc_consistent(phba->ctrl.pdev,
+ sizeof(nonemb_cmd->size),
+ &nonemb_cmd->dma);
+ if (!nonemb_cmd->va) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = nonemb_cmd->va;
+ memset(req, 0, sizeof(*req));
+ sge = nonembedded_sgl(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
+ sizeof(*resp));
+ req->session_handle = phba->boot_struct.s_handle;
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd->size);
+
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_get_boot_target_req *req;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
+ sizeof(struct be_cmd_get_boot_target_resp));
- /* Couldn't log into the boot target */
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d : Login to Boot Target Failed\n");
- return -ENXIO;
+ if (async) {
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+ }
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
}
/**
- * mgmt_set_vlan()- Issue and wait for CMD completion
- * @phba: device private structure instance
- * @vlan_tag: VLAN tag
+ * beiscsi_boot_get_shandle()- Get boot session handle
+ * @phba: device priv structure instance
+ * @s_handle: session handle returned for boot session.
*
- * Issue the MBX Cmd and wait for the completion of the
- * command.
+ * return
+ * Success: 1
+ * Failure: negative
*
- * returns
- * Success: 0
- * Failure: Non-Xero Value
**/
-int mgmt_set_vlan(struct beiscsi_hba *phba,
- uint16_t vlan_tag)
+int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle)
{
- int rc;
+ struct be_cmd_get_boot_target_resp *boot_resp;
+ struct be_mcc_wrb *wrb;
unsigned int tag;
+ int rc;
- tag = be_cmd_set_vlan(phba, vlan_tag);
+ *s_handle = BE_BOOT_INVALID_SHANDLE;
+ /* get configured boot session count and handle */
+ tag = __beiscsi_boot_get_shandle(phba, 0);
if (!tag) {
beiscsi_log(phba, KERN_ERR,
- (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
- "BG_%d : VLAN Setting Failed\n");
- return -EBUSY;
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
+ "BG_%d : Getting Boot Target Info Failed\n");
+ return -EAGAIN;
}
- rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
+ rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
if (rc) {
beiscsi_log(phba, KERN_ERR,
- (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
- "BS_%d : VLAN MBX Cmd Failed\n");
- return rc;
+ BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+ "BG_%d : MBX CMD get_boot_target Failed\n");
+ return -EBUSY;
}
- return rc;
+
+ boot_resp = embedded_payload(wrb);
+ /* check if there are any boot targets configured */
+ if (!boot_resp->boot_session_count) {
+ __beiscsi_log(phba, KERN_INFO,
+ "BG_%d : No boot targets configured\n");
+ return -ENXIO;
+ }
+
+ /* only if FW has logged in to the boot target, s_handle is valid */
+ *s_handle = boot_resp->boot_session_handle;
+ return 1;
}
/**
{
struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
- memset(pwrb, 0, sizeof(*pwrb));
AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
max_send_data_segment_length, pwrb,
params->dw[offsetof(struct amap_beiscsi_offload_params,
{
struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
- memset(pwrb, 0, sizeof(*pwrb));
-
AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
max_burst_length, pwrb, params->dw[offsetof
(struct amap_beiscsi_offload_params,
(params->dw[offsetof(struct amap_beiscsi_offload_params,
exp_statsn) / 32] + 1));
}
-
-/**
- * beiscsi_logout_fw_sess()- Firmware Session Logout
- * @phba: Device priv structure instance
- * @fw_sess_handle: FW session handle
- *
- * Logout from the FW established sessions.
- * returns
- * Success: 0
- * Failure: Non-Zero Value
- *
- */
-int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
- uint32_t fw_sess_handle)
-{
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb;
- struct be_cmd_req_logout_fw_sess *req;
- struct be_cmd_resp_logout_fw_sess *resp;
- unsigned int tag;
- int rc;
-
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BG_%d : In bescsi_logout_fwboot_sess\n");
-
- mutex_lock(&ctrl->mbox_lock);
- wrb = alloc_mcc_wrb(phba, &tag);
- if (!wrb) {
- mutex_unlock(&ctrl->mbox_lock);
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
- "BG_%d : MBX Tag Failure\n");
- return -EINVAL;
- }
-
- req = embedded_payload(wrb);
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
- OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
- sizeof(struct be_cmd_req_logout_fw_sess));
-
- /* Set the session handle */
- req->session_handle = fw_sess_handle;
- be_mcc_notify(phba, tag);
- mutex_unlock(&ctrl->mbox_lock);
-
- rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
- if (rc) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d : MBX CMD FW_SESSION_LOGOUT_TARGET Failed\n");
- return -EBUSY;
- }
-
- resp = embedded_payload(wrb);
- if (resp->session_status !=
- BEISCSI_MGMT_SESSION_CLOSE) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BG_%d : FW_SESSION_LOGOUT_TARGET resp : 0x%x\n",
- resp->session_status);
- rc = -EINVAL;
- }
-
- return rc;
-}
/**
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
*
* Contact Information:
- * linux-drivers@avagotech.com
+ * linux-drivers@broadcom.com
*
* Emulex
* 3333 Susan Street
struct mcc_wrb_payload payload;
};
-int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute);
int mgmt_open_connection(struct beiscsi_hba *phba,
struct sockaddr *dst_addr,
struct beiscsi_endpoint *beiscsi_ep,
u16 cid_vld;
};
-int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
- struct beiscsi_hba *phba);
-int mgmt_get_port_name(struct be_ctrl_info *ctrl,
- struct beiscsi_hba *phba);
-
unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
struct beiscsi_endpoint *beiscsi_ep,
unsigned short cid,
unsigned short issue_reset,
unsigned short savecfg_flag);
-int mgmt_set_ip(struct beiscsi_hba *phba,
- struct iscsi_iface_param_info *ip_param,
- struct iscsi_iface_param_info *subnet_param,
- uint32_t boot_proto);
+int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type);
-unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba);
+int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
+ u8 *ip, u8 *subnet);
-unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
- unsigned int reopen_type,
- unsigned sess_handle);
+int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw);
-unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
- u32 boot_session_handle,
- struct be_dma_mem *nonemb_cmd);
+int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
+ struct be_cmd_get_def_gateway_resp *resp);
int mgmt_get_nic_conf(struct beiscsi_hba *phba,
struct be_cmd_get_nic_conf_resp *mac);
-int mgmt_get_if_info(struct beiscsi_hba *phba, int ip_type,
- struct be_cmd_get_if_info_resp **if_info);
+int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
+ struct be_cmd_get_if_info_resp **if_info);
+
+unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba);
+
+int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
-int mgmt_get_gateway(struct beiscsi_hba *phba, int ip_type,
- struct be_cmd_get_def_gateway_resp *gateway);
+unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba);
-int mgmt_set_gateway(struct beiscsi_hba *phba,
- struct iscsi_iface_param_info *gateway_param);
+unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba);
-int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
- unsigned int *s_handle);
+unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba);
-unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba);
+unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async);
-int mgmt_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
+int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle);
ssize_t beiscsi_drvr_ver_disp(struct device *dev,
struct device_attribute *attr, char *buf);
struct wrb_handle *pwrb_handle,
struct hwi_wrb_context *pwrb_context);
-void beiscsi_ue_detect(struct beiscsi_hba *phba);
int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
struct be_set_eqd *, int num);
bfa_port_speed_t max_speed = 0;
struct bfa_port_attr_s port_attr;
bfa_port_speed_t port_speed, rport_speed;
- bfa_boolean_t trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);
-
+ bfa_boolean_t trl_enabled;
if (port == NULL)
return 0;
fcs = port->fcs;
+ trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);
/* Get Physical port's current speed */
bfa_fcport_get_attr(port->fcs->bfa, &port_attr);
return rc;
}
-void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg)
+static void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg)
{
struct bnx2fc_mp_req *mp_req;
struct fc_frame_header *fc_hdr, *fh;
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
}
-void bnx2fc_rec_compl(struct bnx2fc_els_cb_arg *cb_arg)
+static void bnx2fc_rec_compl(struct bnx2fc_els_cb_arg *cb_arg)
{
struct bnx2fc_cmd *orig_io_req, *new_io_req;
struct bnx2fc_cmd *rec_req;
*
* @arg: ptr to bnx2fc_percpu_info structure
*/
-int bnx2fc_percpu_io_thread(void *arg)
+static int bnx2fc_percpu_io_thread(void *arg)
{
struct bnx2fc_percpu_s *p = arg;
struct bnx2fc_work *work, *tmp;
return NULL;
}
-struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
- struct net_device *netdev,
- enum fip_state fip_mode)
+static struct bnx2fc_interface *
+bnx2fc_interface_create(struct bnx2fc_hba *hba,
+ struct net_device *netdev,
+ enum fip_state fip_mode)
{
struct fcoe_ctlr_device *ctlr_dev;
struct bnx2fc_interface *interface;
* held.
*/
mutex_lock(&bnx2fc_dev_lock);
- list_splice(&adapter_list, &to_be_deleted);
- INIT_LIST_HEAD(&adapter_list);
+ list_splice_init(&adapter_list, &to_be_deleted);
adapter_count = 0;
mutex_unlock(&bnx2fc_dev_lock);
}
-struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
+static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
{
struct bnx2fc_work *work;
work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
}
-int bnx2fc_abts_cleanup(struct bnx2fc_cmd *io_req)
+static int bnx2fc_abts_cleanup(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_rport *tgt = io_req->tgt;
int rc = SUCCESS;
/* Wake up waiting threads */
csio_scsi_cmnd(req) = NULL;
- complete_all(&req->cmplobj);
+ complete(&req->cmplobj);
}
/*
ready = csio_is_lnode_ready(ln);
tmo = CSIO_SCSI_ABRT_TMO_MS;
+ reinit_completion(&ioreq->cmplobj);
spin_lock_irq(&hw->lock);
rv = csio_do_abrt_cls(hw, ioreq, (ready ? SCSI_ABORT : SCSI_CLOSE));
spin_unlock_irq(&hw->lock);
goto inval_scmnd;
}
- /* Wait for completion */
- init_completion(&ioreq->cmplobj);
wait_for_completion_timeout(&ioreq->cmplobj, msecs_to_jiffies(tmo));
/* FW didnt respond to abort within our timeout */
}
}
-/**
- * cxlflash_shutdown() - shutdown handler
- * @pdev: PCI device associated with the host.
- */
-static void cxlflash_shutdown(struct pci_dev *pdev)
-{
- struct cxlflash_cfg *cfg = pci_get_drvdata(pdev);
-
- notify_shutdown(cfg, false);
-}
-
/**
* cxlflash_remove() - PCI entry point to tear down host
* @pdev: PCI device associated with the host.
struct cxlflash_cfg *cfg = pci_get_drvdata(pdev);
ulong lock_flags;
+ if (!pci_is_enabled(pdev)) {
+ pr_debug("%s: Device is disabled\n", __func__);
+ return;
+ }
+
/* If a Task Management Function is active, wait for it to complete
* before continuing with remove.
*/
do {
msleep(delay_us / 1000);
status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
+ if (status == U64_MAX)
+ nretry /= 2;
} while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_ONLINE &&
nretry--);
do {
msleep(delay_us / 1000);
status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
+ if (status == U64_MAX)
+ nretry /= 2;
} while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_OFFLINE &&
nretry--);
* online. This toggling action can cause this routine to delay up to a few
* seconds. When configured to use the internal LUN feature of the AFU, a
* failure to come online is overridden.
- *
- * Return:
- * 0 when the WWPN is successfully written and the port comes back online
- * -1 when the port fails to go offline or come back up online
*/
-static int afu_set_wwpn(struct afu *afu, int port, __be64 __iomem *fc_regs,
- u64 wwpn)
+static void afu_set_wwpn(struct afu *afu, int port, __be64 __iomem *fc_regs,
+ u64 wwpn)
{
- int rc = 0;
-
set_port_offline(fc_regs);
-
if (!wait_port_offline(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US,
FC_PORT_STATUS_RETRY_CNT)) {
pr_debug("%s: wait on port %d to go offline timed out\n",
__func__, port);
- rc = -1; /* but continue on to leave the port back online */
}
- if (rc == 0)
- writeq_be(wwpn, &fc_regs[FC_PNAME / 8]);
-
- /* Always return success after programming WWPN */
- rc = 0;
+ writeq_be(wwpn, &fc_regs[FC_PNAME / 8]);
set_port_online(fc_regs);
-
if (!wait_port_online(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US,
FC_PORT_STATUS_RETRY_CNT)) {
- pr_err("%s: wait on port %d to go online timed out\n",
- __func__, port);
+ pr_debug("%s: wait on port %d to go online timed out\n",
+ __func__, port);
}
-
- pr_debug("%s: returning rc=%d\n", __func__, rc);
-
- return rc;
}
/**
{SISL_ASTATUS_FC0_LOGI_F, "login failed", 0, CLR_FC_ERROR},
{SISL_ASTATUS_FC0_LOGI_S, "login succeeded", 0, SCAN_HOST},
{SISL_ASTATUS_FC0_LINK_DN, "link down", 0, 0},
- {SISL_ASTATUS_FC0_LINK_UP, "link up", 0, SCAN_HOST},
+ {SISL_ASTATUS_FC0_LINK_UP, "link up", 0, 0},
{SISL_ASTATUS_FC1_OTHER, "other error", 1, CLR_FC_ERROR | LINK_RESET},
{SISL_ASTATUS_FC1_LOGO, "target initiated LOGO", 1, 0},
{SISL_ASTATUS_FC1_CRC_T, "CRC threshold exceeded", 1, LINK_RESET},
{SISL_ASTATUS_FC1_LOGI_F, "login failed", 1, CLR_FC_ERROR},
{SISL_ASTATUS_FC1_LOGI_S, "login succeeded", 1, SCAN_HOST},
{SISL_ASTATUS_FC1_LINK_DN, "link down", 1, 0},
- {SISL_ASTATUS_FC1_LINK_UP, "link up", 1, SCAN_HOST},
+ {SISL_ASTATUS_FC1_LINK_UP, "link up", 1, 0},
{0x0, "", 0, 0} /* terminator */
};
[FC_CRC_THRESH / 8]);
/* Set WWPNs. If already programmed, wwpn[i] is 0 */
- if (wwpn[i] != 0 &&
- afu_set_wwpn(afu, i,
- &afu->afu_map->global.fc_regs[i][0],
- wwpn[i])) {
- dev_err(dev, "%s: failed to set WWPN on port %d\n",
- __func__, i);
- rc = -EIO;
- goto out;
- }
+ if (wwpn[i] != 0)
+ afu_set_wwpn(afu, i,
+ &afu->afu_map->global.fc_regs[i][0],
+ wwpn[i]);
/* Programming WWPN back to back causes additional
* offline/online transitions and a PLOGI
*/
* cxlflash_eh_host_reset_handler() - reset the host adapter
* @scp: SCSI command from stack identifying host.
*
+ * Following a reset, the state is evaluated again in case an EEH occurred
+ * during the reset. In such a scenario, the host reset will either yield
+ * until the EEH recovery is complete or return success or failure based
+ * upon the current device state.
+ *
* Return:
* SUCCESS as defined in scsi/scsi.h
* FAILED as defined in scsi/scsi.h
} else
cfg->state = STATE_NORMAL;
wake_up_all(&cfg->reset_waitq);
- break;
+ ssleep(1);
+ /* fall through */
case STATE_RESET:
wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
if (cfg->state == STATE_NORMAL)
* @pdev: PCI device struct.
* @state: PCI channel state.
*
+ * When an EEH occurs during an active reset, wait until the reset is
+ * complete and then take action based upon the device state.
+ *
* Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
*/
static pci_ers_result_t cxlflash_pci_error_detected(struct pci_dev *pdev,
switch (state) {
case pci_channel_io_frozen:
+ wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
+ if (cfg->state == STATE_FAILTERM)
+ return PCI_ERS_RESULT_DISCONNECT;
+
cfg->state = STATE_RESET;
scsi_block_requests(cfg->host);
drain_ioctls(cfg);
.id_table = cxlflash_pci_table,
.probe = cxlflash_probe,
.remove = cxlflash_remove,
- .shutdown = cxlflash_shutdown,
+ .shutdown = cxlflash_remove,
.err_handler = &cxlflash_err_handler,
};
* @cfg: Internal structure associated with the host.
* @ctxi: Context to release.
*
- * This routine is safe to be called with a a non-initialized context
- * and is tolerant of being called with the context's mutex held (it
- * will be unlocked if necessary before freeing). Also note that the
- * routine conditionally checks for the existence of the context control
- * map before clearing the RHT registers and context capabilities because
- * it is possible to destroy a context while the context is in the error
- * state (previous mapping was removed [so there is no need to worry about
- * clearing] and context is waiting for a new mapping).
+ * This routine is safe to be called with a a non-initialized context.
+ * Also note that the routine conditionally checks for the existence
+ * of the context control map before clearing the RHT registers and
+ * context capabilities because it is possible to destroy a context
+ * while the context is in the error state (previous mapping was
+ * removed [so there is no need to worry about clearing] and context
+ * is waiting for a new mapping).
*/
static void destroy_context(struct cxlflash_cfg *cfg,
struct ctx_info *ctxi)
writeq_be(0, &ctxi->ctrl_map->rht_cnt_id);
writeq_be(0, &ctxi->ctrl_map->ctx_cap);
}
-
- if (mutex_is_locked(&ctxi->mutex))
- mutex_unlock(&ctxi->mutex);
}
/* Free memory associated with context */
* @cfg: Internal structure associated with the host.
* @ctx: Previously obtained CXL context reference.
* @ctxid: Previously obtained process element associated with CXL context.
- * @adap_fd: Previously obtained adapter fd associated with CXL context.
* @file: Previously obtained file associated with CXL context.
* @perms: User-specified permissions.
- *
- * Upon return, the context is marked as initialized and the context's mutex
- * is locked.
*/
static void init_context(struct ctx_info *ctxi, struct cxlflash_cfg *cfg,
- struct cxl_context *ctx, int ctxid, int adap_fd,
- struct file *file, u32 perms)
+ struct cxl_context *ctx, int ctxid, struct file *file,
+ u32 perms)
{
struct afu *afu = cfg->afu;
ctxi->rht_perms = perms;
ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl;
ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid);
- ctxi->lfd = adap_fd;
ctxi->pid = current->tgid; /* tgid = pid */
ctxi->ctx = ctx;
+ ctxi->cfg = cfg;
ctxi->file = file;
ctxi->initialized = true;
mutex_init(&ctxi->mutex);
+ kref_init(&ctxi->kref);
INIT_LIST_HEAD(&ctxi->luns);
INIT_LIST_HEAD(&ctxi->list); /* initialize for list_empty() */
+}
+/**
+ * remove_context() - context kref release handler
+ * @kref: Kernel reference associated with context to be removed.
+ *
+ * When a context no longer has any references it can safely be removed
+ * from global access and destroyed. Note that it is assumed the thread
+ * relinquishing access to the context holds its mutex.
+ */
+static void remove_context(struct kref *kref)
+{
+ struct ctx_info *ctxi = container_of(kref, struct ctx_info, kref);
+ struct cxlflash_cfg *cfg = ctxi->cfg;
+ u64 ctxid = DECODE_CTXID(ctxi->ctxid);
+
+ /* Remove context from table/error list */
+ WARN_ON(!mutex_is_locked(&ctxi->mutex));
+ ctxi->unavail = true;
+ mutex_unlock(&ctxi->mutex);
+ mutex_lock(&cfg->ctx_tbl_list_mutex);
mutex_lock(&ctxi->mutex);
+
+ if (!list_empty(&ctxi->list))
+ list_del(&ctxi->list);
+ cfg->ctx_tbl[ctxid] = NULL;
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ mutex_unlock(&ctxi->mutex);
+
+ /* Context now completely uncoupled/unreachable */
+ destroy_context(cfg, ctxi);
}
/**
int i;
int rc = 0;
- int lfd;
u64 ctxid = DECODE_CTXID(detach->context_id),
rctxid = detach->context_id;
break;
}
- /* Tear down context following last LUN cleanup */
- if (list_empty(&ctxi->luns)) {
- ctxi->unavail = true;
- mutex_unlock(&ctxi->mutex);
- mutex_lock(&cfg->ctx_tbl_list_mutex);
- mutex_lock(&ctxi->mutex);
-
- /* Might not have been in error list so conditionally remove */
- if (!list_empty(&ctxi->list))
- list_del(&ctxi->list);
- cfg->ctx_tbl[ctxid] = NULL;
- mutex_unlock(&cfg->ctx_tbl_list_mutex);
- mutex_unlock(&ctxi->mutex);
-
- lfd = ctxi->lfd;
- destroy_context(cfg, ctxi);
- ctxi = NULL;
+ /*
+ * Release the context reference and the sdev reference that
+ * bound this LUN to the context.
+ */
+ if (kref_put(&ctxi->kref, remove_context))
put_ctx = false;
-
- /*
- * As a last step, clean up external resources when not
- * already on an external cleanup thread, i.e.: close(adap_fd).
- *
- * NOTE: this will free up the context from the CXL services,
- * allowing it to dole out the same context_id on a future
- * (or even currently in-flight) disk_attach operation.
- */
- if (lfd != -1)
- sys_close(lfd);
- }
-
- /* Release the sdev reference that bound this LUN to the context */
scsi_device_put(sdev);
-
out:
if (put_ctx)
put_context(ctxi);
*
* This routine is the release handler for the fops registered with
* the CXL services on an initial attach for a context. It is called
- * when a close is performed on the adapter file descriptor returned
- * to the user. Programmatically, the user is not required to perform
- * the close, as it is handled internally via the detach ioctl when
- * a context is being removed. Note that nothing prevents the user
- * from performing a close, but the user should be aware that doing
- * so is considered catastrophic and subsequent usage of the superpipe
- * API with previously saved off tokens will fail.
- *
- * When initiated from an external close (either by the user or via
- * a process tear down), the routine derives the context reference
- * and calls detach for each LUN associated with the context. The
- * final detach operation will cause the context itself to be freed.
- * Note that the saved off lfd is reset prior to calling detach to
- * signify that the final detach should not perform a close.
- *
- * When initiated from a detach operation as part of the tear down
- * of a context, the context is first completely freed and then the
- * close is performed. This routine will fail to derive the context
- * reference (due to the context having already been freed) and then
- * call into the CXL release entry point.
+ * when a close (explicity by the user or as part of a process tear
+ * down) is performed on the adapter file descriptor returned to the
+ * user. The user should be aware that explicitly performing a close
+ * considered catastrophic and subsequent usage of the superpipe API
+ * with previously saved off tokens will fail.
*
- * Thus, with exception to when the CXL process element (context id)
- * lookup fails (a case that should theoretically never occur), every
- * call into this routine results in a complete freeing of a context.
- *
- * As part of the detach, all per-context resources associated with the LUN
- * are cleaned up. When detaching the last LUN for a context, the context
- * itself is cleaned up and released.
+ * This routine derives the context reference and calls detach for
+ * each LUN associated with the context.The final detach operation
+ * causes the context itself to be freed. With exception to when the
+ * CXL process element (context id) lookup fails (a case that should
+ * theoretically never occur), every call into this routine results
+ * in a complete freeing of a context.
*
* Return: 0 on success
*/
goto out;
}
- dev_dbg(dev, "%s: close(%d) for context %d\n",
- __func__, ctxi->lfd, ctxid);
+ dev_dbg(dev, "%s: close for context %d\n", __func__, ctxid);
- /* Reset the file descriptor to indicate we're on a close() thread */
- ctxi->lfd = -1;
detach.context_id = ctxi->ctxid;
list_for_each_entry_safe(lun_access, t, &ctxi->luns, list)
_cxlflash_disk_detach(lun_access->sdev, ctxi, &detach);
goto err;
}
- dev_dbg(dev, "%s: fault(%d) for context %d\n",
- __func__, ctxi->lfd, ctxid);
+ dev_dbg(dev, "%s: fault for context %d\n", __func__, ctxid);
if (likely(!ctxi->err_recovery_active)) {
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
goto out;
}
- dev_dbg(dev, "%s: mmap(%d) for context %d\n",
- __func__, ctxi->lfd, ctxid);
+ dev_dbg(dev, "%s: mmap for context %d\n", __func__, ctxid);
rc = cxl_fd_mmap(file, vma);
if (likely(!rc)) {
lun_access->lli = lli;
lun_access->sdev = sdev;
- /* Non-NULL context indicates reuse */
+ /* Non-NULL context indicates reuse (another context reference) */
if (ctxi) {
dev_dbg(dev, "%s: Reusing context for LUN! (%016llX)\n",
__func__, rctxid);
+ kref_get(&ctxi->kref);
list_add(&lun_access->list, &ctxi->luns);
- fd = ctxi->lfd;
goto out_attach;
}
perms = SISL_RHT_PERM(attach->hdr.flags + 1);
/* Context mutex is locked upon return */
- init_context(ctxi, cfg, ctx, ctxid, fd, file, perms);
+ init_context(ctxi, cfg, ctx, ctxid, file, perms);
rc = afu_attach(cfg, ctxi);
if (unlikely(rc)) {
* knows about us yet; we can be the only one holding our mutex.
*/
list_add(&lun_access->list, &ctxi->luns);
- mutex_unlock(&ctxi->mutex);
mutex_lock(&cfg->ctx_tbl_list_mutex);
mutex_lock(&ctxi->mutex);
cfg->ctx_tbl[ctxid] = ctxi;
fd_install(fd, file);
out_attach:
- attach->hdr.return_flags = 0;
+ if (fd != -1)
+ attach->hdr.return_flags = DK_CXLFLASH_APP_CLOSE_ADAP_FD;
+ else
+ attach->hdr.return_flags = 0;
+
attach->context_id = ctxi->ctxid;
attach->block_size = gli->blk_len;
attach->mmio_size = sizeof(afu->afu_map->hosts[0].harea);
file = NULL;
}
- /* Cleanup our context; safe to call even with mutex locked */
+ /* Cleanup our context */
if (ctxi) {
destroy_context(cfg, ctxi);
ctxi = NULL;
* recover_context() - recovers a context in error
* @cfg: Internal structure associated with the host.
* @ctxi: Context to release.
+ * @adap_fd: Adapter file descriptor associated with new/recovered context.
*
* Restablishes the state for a context-in-error.
*
* Return: 0 on success, -errno on failure
*/
-static int recover_context(struct cxlflash_cfg *cfg, struct ctx_info *ctxi)
+static int recover_context(struct cxlflash_cfg *cfg,
+ struct ctx_info *ctxi,
+ int *adap_fd)
{
struct device *dev = &cfg->dev->dev;
int rc = 0;
- int old_fd, fd = -1;
+ int fd = -1;
int ctxid = -1;
struct file *file;
struct cxl_context *ctx;
* No error paths after this point. Once the fd is installed it's
* visible to user space and can't be undone safely on this thread.
*/
- old_fd = ctxi->lfd;
ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid);
- ctxi->lfd = fd;
ctxi->ctx = ctx;
ctxi->file = file;
cfg->ctx_tbl[ctxid] = ctxi;
mutex_unlock(&cfg->ctx_tbl_list_mutex);
fd_install(fd, file);
-
- /* Release the original adapter fd and associated CXL resources */
- sys_close(old_fd);
+ *adap_fd = fd;
out:
dev_dbg(dev, "%s: returning ctxid=%d fd=%d rc=%d\n",
__func__, ctxid, fd, rc);
rctxid = recover->context_id;
long reg;
int lretry = 20; /* up to 2 seconds */
+ int new_adap_fd = -1;
int rc = 0;
atomic_inc(&cfg->recovery_threads);
if (ctxi->err_recovery_active) {
retry_recover:
- rc = recover_context(cfg, ctxi);
+ rc = recover_context(cfg, ctxi, &new_adap_fd);
if (unlikely(rc)) {
dev_err(dev, "%s: Recovery failed for context %llu (rc=%d)\n",
__func__, ctxid, rc);
ctxi->err_recovery_active = false;
recover->context_id = ctxi->ctxid;
- recover->adap_fd = ctxi->lfd;
+ recover->adap_fd = new_adap_fd;
recover->mmio_size = sizeof(afu->afu_map->hosts[0].harea);
- recover->hdr.return_flags |=
+ recover->hdr.return_flags = DK_CXLFLASH_APP_CLOSE_ADAP_FD |
DK_CXLFLASH_RECOVER_AFU_CONTEXT_RESET;
goto out;
}
struct cxl_ioctl_start_work work;
u64 ctxid;
- int lfd;
pid_t pid;
bool initialized;
bool unavail;
bool err_recovery_active;
struct mutex mutex; /* Context protection */
+ struct kref kref;
struct cxl_context *ctx;
+ struct cxlflash_cfg *cfg;
struct list_head luns; /* LUNs attached to this context */
const struct vm_operations_struct *cxl_mmap_vmops;
struct file *file;
ctxid_dst = DECODE_CTXID(clone->context_id_dst),
rctxid_src = clone->context_id_src,
rctxid_dst = clone->context_id_dst;
- int adap_fd_src = clone->adap_fd_src;
int i, j;
int rc = 0;
bool found;
LIST_HEAD(sidecar);
- pr_debug("%s: ctxid_src=%llu ctxid_dst=%llu adap_fd_src=%d\n",
- __func__, ctxid_src, ctxid_dst, adap_fd_src);
+ pr_debug("%s: ctxid_src=%llu ctxid_dst=%llu\n",
+ __func__, ctxid_src, ctxid_dst);
/* Do not clone yourself */
if (unlikely(rctxid_src == rctxid_dst)) {
goto out;
}
- if (unlikely(adap_fd_src != ctxi_src->lfd)) {
- pr_debug("%s: Invalid source adapter fd! (%d)\n",
- __func__, adap_fd_src);
- rc = -EINVAL;
- goto out;
- }
-
/* Verify there is no open resource handle in the destination context */
for (i = 0; i < MAX_RHT_PER_CONTEXT; i++)
if (ctxi_dst->rht_start[i].nmask != 0) {
out_success:
list_splice(&sidecar, &ctxi_dst->luns);
- sys_close(adap_fd_src);
/* fall through */
out:
sdev_printk(KERN_ERR, sdev, "%s: rtpg retry\n",
ALUA_DH_NAME);
scsi_print_sense_hdr(sdev, ALUA_DH_NAME, &sense_hdr);
+ kfree(buff);
return err;
}
sdev_printk(KERN_ERR, sdev, "%s: rtpg failed\n",
+++ /dev/null
-/*
- * DTC 3180/3280 driver, by
- * Ray Van Tassle rayvt@comm.mot.com
- *
- * taken from ...
- * Trantor T128/T128F/T228 driver by...
- *
- * Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - since the board is memory mapped,
- * a BIOS signature is scanned for to locate the registers.
- * An interrupt is triggered to autoprobe for the interrupt
- * line.
- *
- * 2. With command line overrides - dtc=address,irq may be
- * used on the LILO command line to override the defaults.
- *
-*/
-
-/*----------------------------------------------------------------*/
-/* the following will set the monitor border color (useful to find
- where something crashed or gets stuck at */
-/* 1 = blue
- 2 = green
- 3 = cyan
- 4 = red
- 5 = magenta
- 6 = yellow
- 7 = white
-*/
-#if 0
-#define rtrc(i) {inb(0x3da); outb(0x31, 0x3c0); outb((i), 0x3c0);}
-#else
-#define rtrc(i) {}
-#endif
-
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <scsi/scsi_host.h>
-
-#include "dtc.h"
-#include "NCR5380.h"
-
-/*
- * The DTC3180 & 3280 boards are memory mapped.
- *
- */
-
-/*
- */
-/* Offset from DTC_5380_OFFSET */
-#define DTC_CONTROL_REG 0x100 /* rw */
-#define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */
-#define CSR_DIR_READ 0x40 /* rw direction, 1 = read 0 = write */
-
-#define CSR_RESET 0x80 /* wo Resets 53c400 */
-#define CSR_5380_REG 0x80 /* ro 5380 registers can be accessed */
-#define CSR_TRANS_DIR 0x40 /* rw Data transfer direction */
-#define CSR_SCSI_BUFF_INTR 0x20 /* rw Enable int on transfer ready */
-#define CSR_5380_INTR 0x10 /* rw Enable 5380 interrupts */
-#define CSR_SHARED_INTR 0x08 /* rw Interrupt sharing */
-#define CSR_HOST_BUF_NOT_RDY 0x04 /* ro Host buffer not ready */
-#define CSR_SCSI_BUF_RDY 0x02 /* ro SCSI buffer ready */
-#define CSR_GATED_5380_IRQ 0x01 /* ro Last block xferred */
-#define CSR_INT_BASE (CSR_SCSI_BUFF_INTR | CSR_5380_INTR)
-
-
-#define DTC_BLK_CNT 0x101 /* rw
- * # of 128-byte blocks to transfer */
-
-
-#define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */
-
-#define DTC_SWITCH_REG 0x3982 /* ro - DIP switches */
-#define DTC_RESUME_XFER 0x3982 /* wo - resume data xfer
- * after disconnect/reconnect*/
-
-#define DTC_5380_OFFSET 0x3880 /* 8 registers here, see NCR5380.h */
-
-/*!!!! for dtc, it's a 128 byte buffer at 3900 !!! */
-#define DTC_DATA_BUF 0x3900 /* rw 128 bytes long */
-
-static struct override {
- unsigned int address;
- int irq;
-} overrides
-#ifdef OVERRIDE
-[] __initdata = OVERRIDE;
-#else
-[4] __initdata = {
- { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO }
-};
-#endif
-
-#define NO_OVERRIDES ARRAY_SIZE(overrides)
-
-static struct base {
- unsigned long address;
- int noauto;
-} bases[] __initdata = {
- { 0xcc000, 0 },
- { 0xc8000, 0 },
- { 0xdc000, 0 },
- { 0xd8000, 0 }
-};
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static const struct signature {
- const char *string;
- int offset;
-} signatures[] = {
- {"DATA TECHNOLOGY CORPORATION BIOS", 0x25},
-};
-
-#define NO_SIGNATURES ARRAY_SIZE(signatures)
-
-#ifndef MODULE
-/*
- * Function : dtc_setup(char *str, int *ints)
- *
- * Purpose : LILO command line initialization of the overrides array,
- *
- * Inputs : str - unused, ints - array of integer parameters with ints[0]
- * equal to the number of ints.
- *
- */
-
-static int __init dtc_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("dtc_setup: usage dtc=address,irq\n");
- else if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].address = ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].address == ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("dtc=", dtc_setup);
-#endif
-
-/*
- * Function : int dtc_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes DTC 3180/3280 controllers
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
-*/
-
-static int __init dtc_detect(struct scsi_host_template * tpnt)
-{
- static int current_override, current_base;
- struct Scsi_Host *instance;
- unsigned int addr;
- void __iomem *base;
- int sig, count;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- addr = 0;
- base = NULL;
-
- if (overrides[current_override].address) {
- addr = overrides[current_override].address;
- base = ioremap(addr, 0x2000);
- if (!base)
- addr = 0;
- } else
- for (; !addr && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "dtc: probing address 0x%08x\n",
- (unsigned int)bases[current_base].address);
- if (bases[current_base].noauto)
- continue;
- base = ioremap(bases[current_base].address, 0x2000);
- if (!base)
- continue;
- for (sig = 0; sig < NO_SIGNATURES; ++sig) {
- if (check_signature(base + signatures[sig].offset, signatures[sig].string, strlen(signatures[sig].string))) {
- addr = bases[current_base].address;
- dprintk(NDEBUG_INIT, "dtc: detected board\n");
- goto found;
- }
- }
- iounmap(base);
- }
-
- dprintk(NDEBUG_INIT, "dtc: addr = 0x%08x\n", addr);
-
- if (!addr)
- break;
-
-found:
- instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
- if (instance == NULL)
- goto out_unmap;
-
- instance->base = addr;
- ((struct NCR5380_hostdata *)(instance)->hostdata)->base = base;
-
- if (NCR5380_init(instance, FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR); /* Enable int's */
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, DTC_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- /* With interrupts enabled, it will sometimes hang when doing heavy
- * reads. So better not enable them until I finger it out. */
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, dtc_intr, 0,
- "dtc", instance)) {
- printk(KERN_ERR "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- printk(KERN_WARNING "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
- printk(KERN_WARNING "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
- }
-
- dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out_unmap:
- iounmap(base);
- return count;
-}
-
-/*
- * Function : int dtc_biosparam(Disk * disk, struct block_device *dev, int *ip)
- *
- * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
- * the specified device / size.
- *
- * Inputs : size = size of device in sectors (512 bytes), dev = block device
- * major / minor, ip[] = {heads, sectors, cylinders}
- *
- * Returns : always 0 (success), initializes ip
- *
-*/
-
-/*
- * XXX Most SCSI boards use this mapping, I could be incorrect. Some one
- * using hard disks on a trantor should verify that this mapping corresponds
- * to that used by the BIOS / ASPI driver by running the linux fdisk program
- * and matching the H_C_S coordinates to what DOS uses.
-*/
-
-static int dtc_biosparam(struct scsi_device *sdev, struct block_device *dev,
- sector_t capacity, int *ip)
-{
- int size = capacity;
-
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = size >> 11;
- return 0;
-}
-
-
-/****************************************************************
- * Function : int NCR5380_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, reads len bytes to
- * dst
- *
- * Inputs : dst = destination, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
-*/
-
-static inline int dtc_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- unsigned char *d = dst;
- int i; /* For counting time spent in the poll-loop */
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- i = 0;
- if (instance->irq == NO_IRQ)
- NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ);
- else
- NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ | CSR_INT_BASE);
- NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */
- rtrc(1);
- while (len > 0) {
- rtrc(2);
- while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY)
- ++i;
- rtrc(3);
- memcpy_fromio(d, hostdata->base + DTC_DATA_BUF, 128);
- d += 128;
- len -= 128;
- rtrc(7);
- /*** with int's on, it sometimes hangs after here.
- * Looks like something makes HBNR go away. */
- }
- rtrc(4);
- while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS))
- ++i;
- rtrc(0);
- return (0);
-}
-
-/****************************************************************
- * Function : int NCR5380_pwrite (struct Scsi_Host *instance,
- * unsigned char *src, int len)
- *
- * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
- * src
- *
- * Inputs : src = source, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
-*/
-
-static inline int dtc_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- int i;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- if (instance->irq == NO_IRQ)
- NCR5380_write(DTC_CONTROL_REG, 0);
- else
- NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR);
- NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */
- for (i = 0; len > 0; ++i) {
- rtrc(5);
- /* Poll until the host buffer can accept data. */
- while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY)
- ++i;
- rtrc(3);
- memcpy_toio(hostdata->base + DTC_DATA_BUF, src, 128);
- src += 128;
- len -= 128;
- }
- rtrc(4);
- while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS))
- ++i;
- rtrc(6);
- /* Wait until the last byte has been sent to the disk */
- while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
- ++i;
- rtrc(7);
- /* Check for parity error here. fixme. */
- rtrc(0);
- return (0);
-}
-
-static int dtc_dma_xfer_len(struct scsi_cmnd *cmd)
-{
- int transfersize = cmd->transfersize;
-
- /* Limit transfers to 32K, for xx400 & xx406
- * pseudoDMA that transfers in 128 bytes blocks.
- */
- if (transfersize > 32 * 1024 && cmd->SCp.this_residual &&
- !(cmd->SCp.this_residual % transfersize))
- transfersize = 32 * 1024;
-
- return transfersize;
-}
-
-MODULE_LICENSE("GPL");
-
-#include "NCR5380.c"
-
-static int dtc_release(struct Scsi_Host *shost)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(shost);
-
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- iounmap(hostdata->base);
- return 0;
-}
-
-static struct scsi_host_template driver_template = {
- .name = "DTC 3180/3280",
- .detect = dtc_detect,
- .release = dtc_release,
- .proc_name = "dtc3x80",
- .info = dtc_info,
- .queuecommand = dtc_queue_command,
- .eh_abort_handler = dtc_abort,
- .eh_bus_reset_handler = dtc_bus_reset,
- .bios_param = dtc_biosparam,
- .can_queue = 32,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 2,
- .use_clustering = DISABLE_CLUSTERING,
- .cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
-};
-#include "scsi_module.c"
+++ /dev/null
-/*
- * DTC controller, taken from T128 driver by...
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- */
-
-#ifndef DTC3280_H
-#define DTC3280_H
-
-#define NCR5380_implementation_fields \
- void __iomem *base
-
-#define DTC_address(reg) \
- (((struct NCR5380_hostdata *)shost_priv(instance))->base + DTC_5380_OFFSET + reg)
-
-#define NCR5380_read(reg) (readb(DTC_address(reg)))
-#define NCR5380_write(reg, value) (writeb(value, DTC_address(reg)))
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) \
- dtc_dma_xfer_len(cmd)
-#define NCR5380_dma_recv_setup dtc_pread
-#define NCR5380_dma_send_setup dtc_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr dtc_intr
-#define NCR5380_queue_command dtc_queue_command
-#define NCR5380_abort dtc_abort
-#define NCR5380_bus_reset dtc_bus_reset
-#define NCR5380_info dtc_info
-
-#define NCR5380_io_delay(x) udelay(x)
-
-/* 15 12 11 10
- 1001 1100 0000 0000 */
-
-#define DTC_IRQS 0x9c00
-
-
-#endif /* DTC3280_H */
/* initialize the allocated memory */
if (test_bit(AF_FIRST_INIT, &a->flags)) {
- memset(a->req_table, 0,
- (num_requests + num_ae_requests +
- 1) * sizeof(struct esas2r_request *));
-
esas2r_targ_db_initialize(a);
/* prime parts of the inbound list */
int length = min(sizeof(struct atto_ioctl), count);
if (!a->local_atto_ioctl) {
- a->local_atto_ioctl = kzalloc(sizeof(struct atto_ioctl),
+ a->local_atto_ioctl = kmalloc(sizeof(struct atto_ioctl),
GFP_KERNEL);
if (a->local_atto_ioctl == NULL) {
esas2r_log(ESAS2R_LOG_WARN,
.notifier_call = libfcoe_device_notification,
};
+static const struct {
+ u32 fc_port_speed;
+#define SPEED_2000 2000
+#define SPEED_4000 4000
+#define SPEED_8000 8000
+#define SPEED_16000 16000
+#define SPEED_32000 32000
+ u32 eth_port_speed;
+} fcoe_port_speed_mapping[] = {
+ { FC_PORTSPEED_1GBIT, SPEED_1000 },
+ { FC_PORTSPEED_2GBIT, SPEED_2000 },
+ { FC_PORTSPEED_4GBIT, SPEED_4000 },
+ { FC_PORTSPEED_8GBIT, SPEED_8000 },
+ { FC_PORTSPEED_10GBIT, SPEED_10000 },
+ { FC_PORTSPEED_16GBIT, SPEED_16000 },
+ { FC_PORTSPEED_20GBIT, SPEED_20000 },
+ { FC_PORTSPEED_25GBIT, SPEED_25000 },
+ { FC_PORTSPEED_32GBIT, SPEED_32000 },
+ { FC_PORTSPEED_40GBIT, SPEED_40000 },
+ { FC_PORTSPEED_50GBIT, SPEED_50000 },
+ { FC_PORTSPEED_100GBIT, SPEED_100000 },
+};
+
+static inline u32 eth2fc_speed(u32 eth_port_speed)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(fcoe_port_speed_mapping); i++) {
+ if (fcoe_port_speed_mapping[i].eth_port_speed == eth_port_speed)
+ return fcoe_port_speed_mapping[i].fc_port_speed;
+ }
+
+ return FC_PORTSPEED_UNKNOWN;
+}
+
/**
* fcoe_link_speed_update() - Update the supported and actual link speeds
* @lport: The local port to update speeds for
SUPPORTED_40000baseLR4_Full))
lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
- switch (ecmd.base.speed) {
- case SPEED_1000:
- lport->link_speed = FC_PORTSPEED_1GBIT;
- break;
- case SPEED_10000:
- lport->link_speed = FC_PORTSPEED_10GBIT;
- break;
- case SPEED_20000:
- lport->link_speed = FC_PORTSPEED_20GBIT;
- break;
- case SPEED_40000:
- lport->link_speed = FC_PORTSPEED_40GBIT;
- break;
- default:
- lport->link_speed = FC_PORTSPEED_UNKNOWN;
- break;
- }
+ lport->link_speed = eth2fc_speed(ecmd.base.speed);
return 0;
}
return -1;
#include <scsi/sas_ata.h>
#include <scsi/libsas.h>
-#define DRV_VERSION "v1.5"
+#define DRV_VERSION "v1.6"
#define HISI_SAS_MAX_PHYS 9
#define HISI_SAS_MAX_QUEUES 32
HISI_SAS_DEV_EH,
};
+enum {
+ HISI_SAS_INT_ABT_CMD = 0,
+ HISI_SAS_INT_ABT_DEV = 1,
+};
+
enum hisi_sas_dev_type {
HISI_SAS_DEV_TYPE_STP = 0,
HISI_SAS_DEV_TYPE_SSP,
struct hisi_sas_cq {
struct hisi_hba *hisi_hba;
+ int rd_point;
+ int id;
+};
+
+struct hisi_sas_dq {
+ struct hisi_hba *hisi_hba;
+ int wr_point;
int id;
};
struct hisi_sas_slot *slot);
int (*prep_stp)(struct hisi_hba *hisi_hba,
struct hisi_sas_slot *slot);
+ int (*prep_abort)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort);
int (*slot_complete)(struct hisi_hba *hisi_hba,
struct hisi_sas_slot *slot, int abort);
void (*phy_enable)(struct hisi_hba *hisi_hba, int phy_no);
struct Scsi_Host *shost;
struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_dq dq[HISI_SAS_MAX_QUEUES];
struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
u8 *lun, struct hisi_sas_tmf_task *tmf);
+static int
+hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device,
+ int abort_flag, int tag);
static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device)
{
slot->task = NULL;
slot->port = NULL;
hisi_sas_slot_index_free(hisi_hba, slot->idx);
- memset(slot, 0, sizeof(*slot));
+ /* slot memory is fully zeroed when it is reused */
}
EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free);
return hisi_hba->hw->prep_stp(hisi_hba, slot);
}
+static int hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort)
+{
+ return hisi_hba->hw->prep_abort(hisi_hba, slot,
+ device_id, abort_flag, tag_to_abort);
+}
+
/*
* This function will issue an abort TMF regardless of whether the
* task is in the sdev or not. Then it will do the task complete
return rc;
}
port = device->port->lldd_port;
- if (port && !port->port_attached && !tmf) {
- if (sas_protocol_ata(task->task_proto)) {
- struct task_status_struct *ts = &task->task_status;
-
- dev_info(dev,
- "task prep: SATA/STP port%d not attach device\n",
- device->port->id);
- ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAS_PHY_DOWN;
- task->task_done(task);
- } else {
- struct task_status_struct *ts = &task->task_status;
-
- dev_info(dev,
- "task prep: SAS port%d does not attach device\n",
- device->port->id);
- ts->resp = SAS_TASK_UNDELIVERED;
- ts->stat = SAS_PHY_DOWN;
- task->task_done(task);
- }
- return 0;
+ if (port && !port->port_attached) {
+ dev_info(dev, "task prep: %s port%d not attach device\n",
+ (sas_protocol_ata(task->task_proto)) ?
+ "SATA/STP" : "SAS",
+ device->port->id);
+
+ return SAS_PHY_DOWN;
}
if (!sas_protocol_ata(task->task_proto)) {
dev_info(dev, "found dev[%lld:%x] is gone\n",
sas_dev->device_id, sas_dev->dev_type);
+ hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
+
hisi_hba->hw->free_device(hisi_hba, sas_dev);
device->lldd_dev = NULL;
memset(sas_dev, 0, sizeof(*sas_dev));
break;
}
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_SUCC) {
+ res = TMF_RESP_FUNC_SUCC;
+ break;
+ }
+
if (task->task_status.resp == SAS_TASK_COMPLETE &&
task->task_status.stat == SAS_DATA_UNDERRUN) {
/* no error, but return the number of bytes of
}
}
+ hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_CMD, tag);
} else if (task->task_proto & SAS_PROTOCOL_SATA ||
task->task_proto & SAS_PROTOCOL_STP) {
if (task->dev->dev_type == SAS_SATA_DEV) {
- struct hisi_slot_info *slot = task->lldd_task;
-
- dev_notice(dev, "abort task: hba=%p task=%p slot=%p\n",
- hisi_hba, task, slot);
- task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+ hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
rc = TMF_RESP_FUNC_COMPLETE;
- goto out;
}
+ } else if (task->task_proto & SAS_PROTOCOL_SMP) {
+ /* SMP */
+ struct hisi_sas_slot *slot = task->lldd_task;
+ u32 tag = slot->idx;
+ hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_CMD, tag);
}
out:
return rc;
}
+static int
+hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, u64 device_id,
+ struct sas_task *task, int abort_flag,
+ int task_tag)
+{
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct device *dev = &hisi_hba->pdev->dev;
+ struct hisi_sas_port *port;
+ struct hisi_sas_slot *slot;
+ struct hisi_sas_cmd_hdr *cmd_hdr_base;
+ int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx;
+
+ if (!device->port)
+ return -1;
+
+ port = device->port->lldd_port;
+
+ /* simply get a slot and send abort command */
+ rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx);
+ if (rc)
+ goto err_out;
+ rc = hisi_hba->hw->get_free_slot(hisi_hba, &dlvry_queue,
+ &dlvry_queue_slot);
+ if (rc)
+ goto err_out_tag;
+
+ slot = &hisi_hba->slot_info[slot_idx];
+ memset(slot, 0, sizeof(struct hisi_sas_slot));
+
+ slot->idx = slot_idx;
+ slot->n_elem = n_elem;
+ slot->dlvry_queue = dlvry_queue;
+ slot->dlvry_queue_slot = dlvry_queue_slot;
+ cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue];
+ slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot];
+ slot->task = task;
+ slot->port = port;
+ task->lldd_task = slot;
+
+ memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr));
+
+ rc = hisi_sas_task_prep_abort(hisi_hba, slot, device_id,
+ abort_flag, task_tag);
+ if (rc)
+ goto err_out_tag;
+
+ /* Port structure is static for the HBA, so
+ * even if the port is deformed it is ok
+ * to reference.
+ */
+ list_add_tail(&slot->entry, &port->list);
+ spin_lock(&task->task_state_lock);
+ task->task_state_flags |= SAS_TASK_AT_INITIATOR;
+ spin_unlock(&task->task_state_lock);
+
+ hisi_hba->slot_prep = slot;
+
+ sas_dev->running_req++;
+ /* send abort command to our chip */
+ hisi_hba->hw->start_delivery(hisi_hba);
+
+ return 0;
+
+err_out_tag:
+ hisi_sas_slot_index_free(hisi_hba, slot_idx);
+err_out:
+ dev_err(dev, "internal abort task prep: failed[%d]!\n", rc);
+
+ return rc;
+}
+
+/**
+ * hisi_sas_internal_task_abort -- execute an internal
+ * abort command for single IO command or a device
+ * @hisi_hba: host controller struct
+ * @device: domain device
+ * @abort_flag: mode of operation, device or single IO
+ * @tag: tag of IO to be aborted (only relevant to single
+ * IO mode)
+ */
+static int
+hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device,
+ int abort_flag, int tag)
+{
+ struct sas_task *task;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct device *dev = &hisi_hba->pdev->dev;
+ int res;
+ unsigned long flags;
+
+ if (!hisi_hba->hw->prep_abort)
+ return -EOPNOTSUPP;
+
+ task = sas_alloc_slow_task(GFP_KERNEL);
+ if (!task)
+ return -ENOMEM;
+
+ task->dev = device;
+ task->task_proto = device->tproto;
+ task->task_done = hisi_sas_task_done;
+ task->slow_task->timer.data = (unsigned long)task;
+ task->slow_task->timer.function = hisi_sas_tmf_timedout;
+ task->slow_task->timer.expires = jiffies + 20*HZ;
+ add_timer(&task->slow_task->timer);
+
+ /* Lock as we are alloc'ing a slot, which cannot be interrupted */
+ spin_lock_irqsave(&hisi_hba->lock, flags);
+ res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id,
+ task, abort_flag, tag);
+ spin_unlock_irqrestore(&hisi_hba->lock, flags);
+ if (res) {
+ del_timer(&task->slow_task->timer);
+ dev_err(dev, "internal task abort: executing internal task failed: %d\n",
+ res);
+ goto exit;
+ }
+ wait_for_completion(&task->slow_task->completion);
+ res = TMF_RESP_FUNC_FAILED;
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_COMPLETE) {
+ res = TMF_RESP_FUNC_COMPLETE;
+ goto exit;
+ }
+
+ /* TMF timed out, return direct. */
+ if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
+ if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+ dev_err(dev, "internal task abort: timeout.\n");
+ if (task->lldd_task) {
+ struct hisi_sas_slot *slot = task->lldd_task;
+
+ hisi_sas_slot_task_free(hisi_hba, task, slot);
+ }
+ }
+ }
+
+exit:
+ dev_info(dev, "internal task abort: task to dev %016llx task=%p "
+ "resp: 0x%x sts 0x%x\n",
+ SAS_ADDR(device->sas_addr),
+ task,
+ task->task_status.resp, /* 0 is complete, -1 is undelivered */
+ task->task_status.stat);
+ sas_free_task(task);
+
+ return res;
+}
+
static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy)
{
hisi_sas_port_notify_formed(sas_phy);
for (i = 0; i < hisi_hba->queue_count; i++) {
struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ struct hisi_sas_dq *dq = &hisi_hba->dq[i];
/* Completion queue structure */
cq->id = i;
cq->hisi_hba = hisi_hba;
+ /* Delivery queue structure */
+ dq->id = i;
+ dq->hisi_hba = hisi_hba;
+
/* Delivery queue */
s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s,
memset(hisi_hba->breakpoint, 0, s);
hisi_hba->slot_index_count = max_command_entries;
- s = hisi_hba->slot_index_count / sizeof(unsigned long);
+ s = hisi_hba->slot_index_count / BITS_PER_BYTE;
hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL);
if (!hisi_hba->slot_index_tags)
goto err_out;
&hisi_hba->queue_count))
goto err_out;
+ if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) &&
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
+ dev_err(dev, "No usable DMA addressing method\n");
+ goto err_out;
+ }
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hisi_hba->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(hisi_hba->regs))
hisi_hba = shost_priv(shost);
platform_set_drvdata(pdev, sha);
- if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) &&
- dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
- dev_err(dev, "No usable DMA addressing method\n");
- rc = -EIO;
- goto err_out_ha;
- }
-
phy_nr = port_nr = hisi_hba->n_phy;
arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL);
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
__swab32(identify_buffer[0]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
- identify_buffer[2]);
+ __swab32(identify_buffer[1]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
- identify_buffer[1]);
+ __swab32(identify_buffer[2]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
- identify_buffer[4]);
+ __swab32(identify_buffer[3]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
- identify_buffer[3]);
+ __swab32(identify_buffer[4]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
__swab32(identify_buffer[5]));
}
-static void init_id_frame_v1_hw(struct hisi_hba *hisi_hba)
-{
- int i;
-
- for (i = 0; i < hisi_hba->n_phy; i++)
- config_id_frame_v1_hw(hisi_hba, i);
-}
-
static void setup_itct_v1_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_device *sas_dev)
{
msleep(100);
init_reg_v1_hw(hisi_hba);
- init_id_frame_v1_hw(hisi_hba);
-
return 0;
}
static int get_free_slot_v1_hw(struct hisi_hba *hisi_hba, int *q, int *s)
{
struct device *dev = &hisi_hba->pdev->dev;
+ struct hisi_sas_dq *dq;
u32 r, w;
int queue = hisi_hba->queue;
while (1) {
- w = hisi_sas_read32_relaxed(hisi_hba,
- DLVRY_Q_0_WR_PTR + (queue * 0x14));
+ dq = &hisi_hba->dq[queue];
+ w = dq->wr_point;
r = hisi_sas_read32_relaxed(hisi_hba,
DLVRY_Q_0_RD_PTR + (queue * 0x14));
if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
{
int dlvry_queue = hisi_hba->slot_prep->dlvry_queue;
int dlvry_queue_slot = hisi_hba->slot_prep->dlvry_queue_slot;
+ struct hisi_sas_dq *dq = &hisi_hba->dq[dlvry_queue];
- hisi_sas_write32(hisi_hba,
- DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
- ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS);
+ dq->wr_point = ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS;
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
+ dq->wr_point);
}
static int prep_prd_sge_v1_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_complete_v1_hdr *complete_queue =
(struct hisi_sas_complete_v1_hdr *)
hisi_hba->complete_hdr[queue];
- u32 irq_value, rd_point, wr_point;
+ u32 irq_value, rd_point = cq->rd_point, wr_point;
irq_value = hisi_sas_read32(hisi_hba, OQ_INT_SRC);
hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
-
- rd_point = hisi_sas_read32(hisi_hba,
- COMPL_Q_0_RD_PTR + (0x14 * queue));
wr_point = hisi_sas_read32(hisi_hba,
COMPL_Q_0_WR_PTR + (0x14 * queue));
}
/* update rd_point */
+ cq->rd_point = rd_point;
hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
return IRQ_HANDLED;
#define SL_CONTROL (PORT_BASE + 0x94)
#define SL_CONTROL_NOTIFY_EN_OFF 0
#define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
+#define SL_CONTROL_CTA_OFF 17
+#define SL_CONTROL_CTA_MSK (0x1 << SL_CONTROL_CTA_OFF)
#define TX_ID_DWORD0 (PORT_BASE + 0x9c)
#define TX_ID_DWORD1 (PORT_BASE + 0xa0)
#define TX_ID_DWORD2 (PORT_BASE + 0xa4)
#define TX_ID_DWORD4 (PORT_BASE + 0xaC)
#define TX_ID_DWORD5 (PORT_BASE + 0xb0)
#define TX_ID_DWORD6 (PORT_BASE + 0xb4)
+#define TXID_AUTO (PORT_BASE + 0xb8)
+#define TXID_AUTO_CT3_OFF 1
+#define TXID_AUTO_CT3_MSK (0x1 << TXID_AUTO_CT3_OFF)
#define RX_IDAF_DWORD0 (PORT_BASE + 0xc4)
#define RX_IDAF_DWORD1 (PORT_BASE + 0xc8)
#define RX_IDAF_DWORD2 (PORT_BASE + 0xcc)
/* HW dma structures */
/* Delivery queue header */
/* dw0 */
+#define CMD_HDR_ABORT_FLAG_OFF 0
+#define CMD_HDR_ABORT_FLAG_MSK (0x3 << CMD_HDR_ABORT_FLAG_OFF)
+#define CMD_HDR_ABORT_DEVICE_TYPE_OFF 2
+#define CMD_HDR_ABORT_DEVICE_TYPE_MSK (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF)
#define CMD_HDR_RESP_REPORT_OFF 5
#define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF)
#define CMD_HDR_TLR_CTRL_OFF 6
#define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF)
#define CMD_HDR_DATA_SGL_LEN_OFF 16
#define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF)
+#define CMD_HDR_ABORT_IPTT_OFF 16
+#define CMD_HDR_ABORT_IPTT_MSK (0xffff << CMD_HDR_ABORT_IPTT_OFF)
/* Completion header */
/* dw0 */
#define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
#define CMPLT_HDR_ERX_OFF 12
#define CMPLT_HDR_ERX_MSK (0x1 << CMPLT_HDR_ERX_OFF)
+#define CMPLT_HDR_ABORT_STAT_OFF 13
+#define CMPLT_HDR_ABORT_STAT_MSK (0x7 << CMPLT_HDR_ABORT_STAT_OFF)
+/* abort_stat */
+#define STAT_IO_NOT_VALID 0x1
+#define STAT_IO_NO_DEVICE 0x2
+#define STAT_IO_COMPLETE 0x3
+#define STAT_IO_ABORTED 0x4
/* dw1 */
#define CMPLT_HDR_IPTT_OFF 0
#define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF)
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
__swab32(identify_buffer[0]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
- identify_buffer[2]);
+ __swab32(identify_buffer[1]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
- identify_buffer[1]);
+ __swab32(identify_buffer[2]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
- identify_buffer[4]);
+ __swab32(identify_buffer[3]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
- identify_buffer[3]);
+ __swab32(identify_buffer[4]));
hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
__swab32(identify_buffer[5]));
}
-static void init_id_frame_v2_hw(struct hisi_hba *hisi_hba)
-{
- int i;
-
- for (i = 0; i < hisi_hba->n_phy; i++)
- config_id_frame_v2_hw(hisi_hba, i);
-}
-
static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_device *sas_dev)
{
qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
break;
case SAS_SATA_DEV:
+ case SAS_SATA_PENDING:
if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type))
qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
else
else
reset_val = 0x7ffff;
- /* Disable all of the DQ */
- for (i = 0; i < HISI_SAS_MAX_QUEUES; i++)
- hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
/* Disable all of the PHYs */
for (i = 0; i < hisi_hba->n_phy; i++) {
hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x855);
hisi_sas_phy_write32(hisi_hba, i, SAS_PHY_CTRL, 0x30b9908);
hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
+ hisi_sas_phy_write32(hisi_hba, i, SL_CONTROL, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, TXID_AUTO, 0x2);
hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x10);
hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff);
hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
msleep(100);
init_reg_v2_hw(hisi_hba);
- init_id_frame_v2_hw(hisi_hba);
-
return 0;
}
static void phys_init_v2_hw(struct hisi_hba *hisi_hba)
{
- int i;
struct timer_list *timer = &hisi_hba->timer;
- for (i = 0; i < hisi_hba->n_phy; i++) {
- hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a);
- hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
- }
-
setup_timer(timer, start_phys_v2_hw, (unsigned long)hisi_hba);
mod_timer(timer, jiffies + HZ);
}
static int get_free_slot_v2_hw(struct hisi_hba *hisi_hba, int *q, int *s)
{
struct device *dev = &hisi_hba->pdev->dev;
+ struct hisi_sas_dq *dq;
u32 r, w;
int queue = hisi_hba->queue;
while (1) {
- w = hisi_sas_read32_relaxed(hisi_hba,
- DLVRY_Q_0_WR_PTR + (queue * 0x14));
+ dq = &hisi_hba->dq[queue];
+ w = dq->wr_point;
r = hisi_sas_read32_relaxed(hisi_hba,
DLVRY_Q_0_RD_PTR + (queue * 0x14));
if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
{
int dlvry_queue = hisi_hba->slot_prep->dlvry_queue;
int dlvry_queue_slot = hisi_hba->slot_prep->dlvry_queue_slot;
+ struct hisi_sas_dq *dq = &hisi_hba->dq[dlvry_queue];
+ dq->wr_point = ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS;
hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
- ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS);
+ dq->wr_point);
}
static int prep_prd_sge_v2_hw(struct hisi_hba *hisi_hba,
goto out;
}
+ /* Use SAS+TMF status codes */
+ switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK)
+ >> CMPLT_HDR_ABORT_STAT_OFF) {
+ case STAT_IO_ABORTED:
+ /* this io has been aborted by abort command */
+ ts->stat = SAS_ABORTED_TASK;
+ goto out;
+ case STAT_IO_COMPLETE:
+ /* internal abort command complete */
+ ts->stat = TMF_RESP_FUNC_COMPLETE;
+ goto out;
+ case STAT_IO_NO_DEVICE:
+ ts->stat = TMF_RESP_FUNC_COMPLETE;
+ goto out;
+ case STAT_IO_NOT_VALID:
+ /* abort single io, controller don't find
+ * the io need to abort
+ */
+ ts->stat = TMF_RESP_FUNC_FAILED;
+ goto out;
+ default:
+ break;
+ }
+
if ((complete_hdr->dw0 & CMPLT_HDR_ERX_MSK) &&
(!(complete_hdr->dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) {
return 0;
}
+static int prep_abort_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort)
+{
+ struct sas_task *task = slot->task;
+ struct domain_device *dev = task->dev;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct hisi_sas_port *port = slot->port;
+
+ /* dw0 */
+ hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
+ (port->id << CMD_HDR_PORT_OFF) |
+ ((dev_is_sata(dev) ? 1:0) <<
+ CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
+ (abort_flag << CMD_HDR_ABORT_FLAG_OFF));
+
+ /* dw1 */
+ hdr->dw1 = cpu_to_le32(device_id << CMD_HDR_DEV_ID_OFF);
+
+ /* dw7 */
+ hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF);
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+
+ return 0;
+}
+
static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
{
int i, res = 0;
frame_rcvd[i] = __swab32(idaf);
}
- /* Get the linkrates */
- link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
- link_rate = (link_rate >> (phy_no * 4)) & 0xf;
sas_phy->linkrate = link_rate;
hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no,
HARD_PHY_LINKRATE);
static int phy_down_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
{
int res = 0;
- u32 phy_cfg, phy_state;
+ u32 phy_state, sl_ctrl, txid_auto;
hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
- phy_cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
-
phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
-
hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);
+ sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL,
+ sl_ctrl & ~SL_CONTROL_CTA_MSK);
+
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto | TXID_AUTO_CT3_MSK);
+
hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
struct hisi_sas_slot *slot;
struct hisi_sas_itct *itct;
struct hisi_sas_complete_v2_hdr *complete_queue;
- u32 irq_value, rd_point, wr_point, dev_id;
+ u32 irq_value, rd_point = cq->rd_point, wr_point, dev_id;
int queue = cq->id;
complete_queue = hisi_hba->complete_hdr[queue];
hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
- rd_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_RD_PTR +
- (0x14 * queue));
wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR +
(0x14 * queue));
}
/* update rd_point */
+ cq->rd_point = rd_point;
hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
return IRQ_HANDLED;
}
.prep_smp = prep_smp_v2_hw,
.prep_ssp = prep_ssp_v2_hw,
.prep_stp = prep_ata_v2_hw,
+ .prep_abort = prep_abort_v2_hw,
.get_free_slot = get_free_slot_v2_hw,
.start_delivery = start_delivery_v2_hw,
.slot_complete = slot_complete_v2_hw,
shost->dma_dev = dma_dev;
- error = device_add(&shost->shost_gendev);
- if (error)
- goto out_destroy_freelist;
-
/*
* Increase usage count temporarily here so that calling
* scsi_autopm_put_host() will trigger runtime idle if there is
pm_runtime_enable(&shost->shost_gendev);
device_enable_async_suspend(&shost->shost_gendev);
+ error = device_add(&shost->shost_gendev);
+ if (error)
+ goto out_destroy_freelist;
+
scsi_host_set_state(shost, SHOST_RUNNING);
get_device(shost->shost_gendev.parent);
out_del_gendev:
device_del(&shost->shost_gendev);
out_destroy_freelist:
+ device_disable_async_suspend(&shost->shost_gendev);
+ pm_runtime_disable(&shost->shost_gendev);
+ pm_runtime_set_suspended(&shost->shost_gendev);
+ pm_runtime_put_noidle(&shost->shost_gendev);
scsi_destroy_command_freelist(shost);
out_destroy_tags:
if (shost_use_blk_mq(shost))
static void hpsa_disable_rld_caching(struct ctlr_info *h);
static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h,
struct ReportExtendedLUNdata *buf, int bufsize);
+static bool hpsa_vpd_page_supported(struct ctlr_info *h,
+ unsigned char scsi3addr[], u8 page);
static int hpsa_luns_changed(struct ctlr_info *h);
static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c,
struct hpsa_scsi_dev_t *dev,
struct CommandList *c, struct scsi_cmnd *cmd)
{
hpsa_cmd_resolve_and_free(h, c);
- cmd->scsi_done(cmd);
+ if (cmd && cmd->scsi_done)
+ cmd->scsi_done(cmd);
}
static void hpsa_retry_cmd(struct ctlr_info *h, struct CommandList *c)
ei = cp->err_info;
cmd = cp->scsi_cmd;
h = cp->h;
+
+ if (!cmd->device) {
+ cmd->result = DID_NO_CONNECT << 16;
+ return hpsa_cmd_free_and_done(h, cp, cmd);
+ }
+
dev = cmd->device->hostdata;
+ if (!dev) {
+ cmd->result = DID_NO_CONNECT << 16;
+ return hpsa_cmd_free_and_done(h, cp, cmd);
+ }
c2 = &h->ioaccel2_cmd_pool[cp->cmdindex];
scsi_dma_unmap(cmd); /* undo the DMA mappings */
cmd->result = (DID_OK << 16); /* host byte */
cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
- if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1)
- atomic_dec(&cp->phys_disk->ioaccel_cmds_out);
+ if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1) {
+ if (dev->physical_device && dev->expose_device &&
+ dev->removed) {
+ cmd->result = DID_NO_CONNECT << 16;
+ return hpsa_cmd_free_and_done(h, cp, cmd);
+ }
+ if (likely(cp->phys_disk != NULL))
+ atomic_dec(&cp->phys_disk->ioaccel_cmds_out);
+ }
/*
* We check for lockup status here as it may be set for
buf = kzalloc(64, GFP_KERNEL);
if (!buf)
return;
- rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0xC1, buf, 64);
+
+ if (!hpsa_vpd_page_supported(h, scsi3addr,
+ HPSA_VPD_LV_DEVICE_GEOMETRY))
+ goto exit;
+
+ rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE |
+ HPSA_VPD_LV_DEVICE_GEOMETRY, buf, 64);
+
if (rc == 0)
*raid_level = buf[8];
if (*raid_level > RAID_UNKNOWN)
*raid_level = RAID_UNKNOWN;
+exit:
kfree(buf);
return;
}
}
/* Get a device id from inquiry page 0x83 */
-static int hpsa_vpd_page_supported(struct ctlr_info *h,
+static bool hpsa_vpd_page_supported(struct ctlr_info *h,
unsigned char scsi3addr[], u8 page)
{
int rc;
buf = kzalloc(256, GFP_KERNEL);
if (!buf)
- return 0;
+ return false;
/* Get the size of the page list first */
rc = hpsa_scsi_do_inquiry(h, scsi3addr,
goto exit_supported;
exit_unsupported:
kfree(buf);
- return 0;
+ return false;
exit_supported:
kfree(buf);
- return 1;
+ return true;
}
static void hpsa_get_ioaccel_status(struct ctlr_info *h,
int rc;
unsigned char *buf;
- if (buflen > 16)
- buflen = 16;
+ /* Does controller have VPD for device id? */
+ if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_DEVICE_ID))
+ return 1; /* not supported */
+
buf = kzalloc(64, GFP_KERNEL);
if (!buf)
return -ENOMEM;
- rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0x83, buf, 64);
- if (rc == 0)
- memcpy(device_id, &buf[index], buflen);
+
+ rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE |
+ HPSA_VPD_LV_DEVICE_ID, buf, 64);
+ if (rc == 0) {
+ if (buflen > 16)
+ buflen = 16;
+ memcpy(device_id, &buf[8], buflen);
+ }
kfree(buf);
- return rc != 0;
+ return rc; /*0 - got id, otherwise, didn't */
}
static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
sizeof(this_device->model));
memset(this_device->device_id, 0,
sizeof(this_device->device_id));
- hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8,
- sizeof(this_device->device_id));
+ if (hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8,
+ sizeof(this_device->device_id)))
+ dev_err(&h->pdev->dev,
+ "hpsa%d: %s: can't get device id for host %d:C0:T%d:L%d\t%s\t%.16s\n",
+ h->ctlr, __func__,
+ h->scsi_host->host_no,
+ this_device->target, this_device->lun,
+ scsi_device_type(this_device->devtype),
+ this_device->model);
if ((this_device->devtype == TYPE_DISK ||
this_device->devtype == TYPE_ZBC) &&
struct bmic_identify_physical_device *id_phys)
{
int rc;
- struct ext_report_lun_entry *rle = &rlep->LUN[rle_index];
+ struct ext_report_lun_entry *rle;
+
+ /*
+ * external targets don't support BMIC
+ */
+ if (dev->external) {
+ dev->queue_depth = 7;
+ return;
+ }
+
+ rle = &rlep->LUN[rle_index];
dev->ioaccel_handle = rle->ioaccel_handle;
if ((rle->device_flags & 0x08) && dev->ioaccel_handle)
lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
i, nphysicals, nlogicals, physdev_list, logdev_list);
+ /* Determine if this is a lun from an external target array */
+ tmpdevice->external =
+ figure_external_status(h, raid_ctlr_position, i,
+ nphysicals, nlocal_logicals);
+
/*
* Skip over some devices such as a spare.
*/
continue;
}
- /* Determine if this is a lun from an external target array */
- tmpdevice->external =
- figure_external_status(h, raid_ctlr_position, i,
- nphysicals, nlocal_logicals);
-
figure_bus_target_lun(h, lunaddrbytes, tmpdevice);
hpsa_update_device_supports_aborts(h, tmpdevice, lunaddrbytes);
this_device = currentsd[ncurrent];
case READ_6:
case READ_12:
if (*cdb_len == 6) {
- block = get_unaligned_be16(&cdb[2]);
+ block = (((cdb[1] & 0x1F) << 16) |
+ (cdb[2] << 8) |
+ cdb[3]);
block_cnt = cdb[4];
if (block_cnt == 0)
block_cnt = 256;
struct scsi_cmnd *cmd = c->scsi_cmd;
struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
+ if (!dev)
+ return -1;
+
c->phys_disk = dev;
return hpsa_scsi_ioaccel_queue_command(h, c, dev->ioaccel_handle,
*/
switch (cmd->cmnd[0]) {
/* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */
- case WRITE_6:
case READ_6:
- first_block = get_unaligned_be16(&cmd->cmnd[2]);
+ case WRITE_6:
+ first_block = (((cmd->cmnd[1] & 0x1F) << 16) |
+ (cmd->cmnd[2] << 8) |
+ cmd->cmnd[3]);
break;
case WRITE_10:
case READ_10:
u32 len;
u32 total_len = 0;
+ if (!cmd->device)
+ return -1;
+
+ if (!cmd->device->hostdata)
+ return -1;
+
BUG_ON(scsi_sg_count(cmd) > h->maxsgentries);
if (fixup_ioaccel_cdb(cdb, &cdb_len)) {
struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk)
{
+ if (!c->scsi_cmd->device)
+ return -1;
+
+ if (!c->scsi_cmd->device->hostdata)
+ return -1;
+
/* Try to honor the device's queue depth */
if (atomic_inc_return(&phys_disk->ioaccel_cmds_out) >
phys_disk->queue_depth) {
#endif
int offload_to_mirror;
+ if (!dev)
+ return -1;
+
/* check for valid opcode, get LBA and block count */
switch (cmd->cmnd[0]) {
case WRITE_6:
is_write = 1;
case READ_6:
- first_block = get_unaligned_be16(&cmd->cmnd[2]);
+ first_block = (((cmd->cmnd[1] & 0x1F) << 16) |
+ (cmd->cmnd[2] << 8) |
+ cmd->cmnd[3]);
block_cnt = cmd->cmnd[4];
if (block_cnt == 0)
block_cnt = 256;
struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
int rc = IO_ACCEL_INELIGIBLE;
+ if (!dev)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
cmd->host_scribble = (unsigned char *) c;
if (dev->offload_enabled) {
struct scsi_cmnd *scmd = command_to_abort->scsi_cmd;
struct hpsa_scsi_dev_t *dev = scmd->device->hostdata;
+ if (!dev)
+ return;
+
/*
* We're overlaying struct hpsa_tmf_struct on top of something which
* was allocated as a struct io_accel2_cmd, so we better be sure it
"Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
psa[0], psa[1], psa[2], psa[3],
psa[4], psa[5], psa[6], psa[7]);
- rc = hpsa_do_reset(h, dev, psa, HPSA_RESET_TYPE_TARGET, reply_queue);
+ rc = hpsa_do_reset(h, dev, psa, HPSA_PHYS_TARGET_RESET, reply_queue);
if (rc != 0) {
dev_warn(&h->pdev->dev,
"Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
struct io_accel2_cmd *c2;
dev = abort->scsi_cmd->device->hostdata;
+ if (!dev)
+ return -1;
+
if (!dev->offload_enabled && !dev->hba_ioaccel_enabled)
return -1;
#define HPSA_DEVICE_RESET_MSG 1
#define HPSA_RESET_TYPE_CONTROLLER 0x00
#define HPSA_RESET_TYPE_BUS 0x01
-#define HPSA_RESET_TYPE_TARGET 0x03
#define HPSA_RESET_TYPE_LUN 0x04
#define HPSA_PHYS_TARGET_RESET 0x99 /* not defined by cciss spec */
#define HPSA_MSG_SEND_RETRY_LIMIT 10
/* VPD Inquiry types */
#define HPSA_VPD_SUPPORTED_PAGES 0x00
+#define HPSA_VPD_LV_DEVICE_ID 0x83
#define HPSA_VPD_LV_DEVICE_GEOMETRY 0xC1
#define HPSA_VPD_LV_IOACCEL_STATUS 0xC2
#define HPSA_VPD_LV_STATUS 0xC3
static unsigned int disc_threads = IBMVFC_MAX_DISC_THREADS;
static unsigned int ibmvfc_debug = IBMVFC_DEBUG;
static unsigned int log_level = IBMVFC_DEFAULT_LOG_LEVEL;
+static unsigned int cls3_error = IBMVFC_CLS3_ERROR;
static LIST_HEAD(ibmvfc_head);
static DEFINE_SPINLOCK(ibmvfc_driver_lock);
static struct scsi_transport_template *ibmvfc_transport_template;
module_param_named(log_level, log_level, uint, 0);
MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver. "
"[Default=" __stringify(IBMVFC_DEFAULT_LOG_LEVEL) "]");
+module_param_named(cls3_error, cls3_error, uint, 0);
+MODULE_PARM_DESC(cls3_error, "Enable FC Class 3 Error Recovery. "
+ "[Default=" __stringify(IBMVFC_CLS3_ERROR) "]");
static const struct {
u16 status;
spin_lock_irqsave(vhost->host->host_lock, flags);
vhost->state = IBMVFC_NO_CRQ;
vhost->logged_in = 0;
- ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE);
/* Clean out the queue */
memset(crq->msgs, 0, PAGE_SIZE);
struct srp_direct_buf *data = &vfc_cmd->ioba;
struct ibmvfc_host *vhost = dev_get_drvdata(dev);
+ if (cls3_error)
+ vfc_cmd->flags |= cpu_to_be16(IBMVFC_CLASS_3_ERR);
+
sg_mapped = scsi_dma_map(scmd);
if (!sg_mapped) {
vfc_cmd->flags |= cpu_to_be16(IBMVFC_NO_MEM_DESC);
prli->parms.type = IBMVFC_SCSI_FCP_TYPE;
prli->parms.flags = cpu_to_be16(IBMVFC_PRLI_EST_IMG_PAIR);
prli->parms.service_parms = cpu_to_be32(IBMVFC_PRLI_INITIATOR_FUNC);
+ prli->parms.service_parms |= cpu_to_be32(IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED);
+
+ if (cls3_error)
+ prli->parms.service_parms |= cpu_to_be32(IBMVFC_PRLI_RETRY);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
#define IBMVFC_DEV_LOSS_TMO (5 * 60)
#define IBMVFC_DEFAULT_LOG_LEVEL 2
#define IBMVFC_MAX_CDB_LEN 16
+#define IBMVFC_CLS3_ERROR 0
/*
* Ensure we have resources for ERP and initialization:
if (!(vscsi->flags & RESPONSE_Q_DOWN)) {
list_for_each_entry_safe(cmd, nxt, &vscsi->waiting_rsp, list) {
- pr_debug("send_messages cmd %p\n", cmd);
-
iue = cmd->iue;
crq->valid = VALID_CMD_RESP_EL;
/*
* Release the SCSI I_T Nexus to the emulated ibmvscsis Target Port
*/
+ target_wait_for_sess_cmds(se_sess);
+ transport_deregister_session_configfs(se_sess);
transport_deregister_session(se_sess);
tport->ibmv_nexus = NULL;
kfree(nexus);
reason = SRP_LOGIN_REJ_MULTI_CHANNEL_UNSUPPORTED;
else if (fmt->buffers & (~SUPPORTED_FORMATS))
reason = SRP_LOGIN_REJ_UNSUPPORTED_DESCRIPTOR_FMT;
- else if ((fmt->buffers | SUPPORTED_FORMATS) == 0)
+ else if ((fmt->buffers & SUPPORTED_FORMATS) == 0)
reason = SRP_LOGIN_REJ_UNSUPPORTED_DESCRIPTOR_FMT;
if (vscsi->state == SRP_PROCESSING)
srp->lun.scsi_lun[0] &= 0x3f;
- pr_debug("calling submit_cmd, se_cmd %p, lun 0x%llx, cdb 0x%x, attr:%d\n",
- &cmd->se_cmd, scsilun_to_int(&srp->lun), (int)srp->cdb[0],
- attr);
-
rc = target_submit_cmd(&cmd->se_cmd, nexus->se_sess, srp->cdb,
cmd->sense_buf, scsilun_to_int(&srp->lun),
data_len, attr, dir, 0);
long tx_len;
long rc = 0;
- pr_debug("rdma: dir %d, bytes 0x%x\n", dir, bytes);
-
if (bytes == 0)
return 0;
vscsi->dds.window[LOCAL].liobn,
server_ioba);
} else {
- /* write to client */
- struct srp_cmd *srp = (struct srp_cmd *)iue->sbuf->buf;
-
- if (!READ_CMD(srp->cdb))
- print_hex_dump_bytes(" data:", DUMP_PREFIX_NONE,
- sg_virt(sgp), buf_len);
/* The h_copy_rdma will cause phyp, running in another
* partition, to read memory, so we need to make sure
* the data has been written out, hence these syncs.
rc = ibmvscsis_trans_event(vscsi, crq);
} else if (vscsi->flags & TRANS_EVENT) {
/*
- * if a tranport event has occurred leave
+ * if a transport event has occurred leave
* everything but transport events on the queue
- */
- pr_debug("handle_crq, ignoring\n");
-
- /*
+ *
* need to decrement the queue index so we can
* look at the elment again
*/
vscsi->map_ioba = dma_map_single(&vdev->dev, vscsi->map_buf, PAGE_SIZE,
DMA_BIDIRECTIONAL);
if (dma_mapping_error(&vdev->dev, vscsi->map_ioba)) {
+ rc = -ENOMEM;
dev_err(&vscsi->dev, "probe: error mapping command buffer\n");
goto free_buf;
}
se_cmd);
struct scsi_info *vscsi = cmd->adapter;
- pr_debug("release_cmd %p, flags %d\n", se_cmd, cmd->flags);
-
spin_lock_bh(&vscsi->intr_lock);
/* Remove from active_q */
- list_del(&cmd->list);
- list_add_tail(&cmd->list, &vscsi->waiting_rsp);
+ list_move_tail(&cmd->list, &vscsi->waiting_rsp);
ibmvscsis_send_messages(vscsi);
spin_unlock_bh(&vscsi->intr_lock);
}
struct iu_entry *iue = cmd->iue;
int rc;
- pr_debug("write_pending, se_cmd %p, length 0x%x\n",
- se_cmd, se_cmd->data_length);
-
rc = srp_transfer_data(cmd, &vio_iu(iue)->srp.cmd, ibmvscsis_rdma,
1, 1);
if (rc) {
uint len = 0;
int rc;
- pr_debug("queue_data_in, se_cmd %p, length 0x%x\n",
- se_cmd, se_cmd->data_length);
-
rc = srp_transfer_data(cmd, &vio_iu(iue)->srp.cmd, ibmvscsis_rdma, 1,
1);
if (rc) {
+++ /dev/null
-/*
- * in2000.c - Linux device driver for the
- * Always IN2000 ISA SCSI card.
- *
- * Copyright (c) 1996 John Shifflett, GeoLog Consulting
- * john@geolog.com
- * jshiffle@netcom.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * For the avoidance of doubt the "preferred form" of this code is one which
- * is in an open non patent encumbered format. Where cryptographic key signing
- * forms part of the process of creating an executable the information
- * including keys needed to generate an equivalently functional executable
- * are deemed to be part of the source code.
- *
- * Drew Eckhardt's excellent 'Generic NCR5380' sources provided
- * much of the inspiration and some of the code for this driver.
- * The Linux IN2000 driver distributed in the Linux kernels through
- * version 1.2.13 was an extremely valuable reference on the arcane
- * (and still mysterious) workings of the IN2000's fifo. It also
- * is where I lifted in2000_biosparam(), the gist of the card
- * detection scheme, and other bits of code. Many thanks to the
- * talented and courageous people who wrote, contributed to, and
- * maintained that driver (including Brad McLean, Shaun Savage,
- * Bill Earnest, Larry Doolittle, Roger Sunshine, John Luckey,
- * Matt Postiff, Peter Lu, zerucha@shell.portal.com, and Eric
- * Youngdale). I should also mention the driver written by
- * Hamish Macdonald for the (GASP!) Amiga A2091 card, included
- * in the Linux-m68k distribution; it gave me a good initial
- * understanding of the proper way to run a WD33c93 chip, and I
- * ended up stealing lots of code from it.
- *
- * _This_ driver is (I feel) an improvement over the old one in
- * several respects:
- * - All problems relating to the data size of a SCSI request are
- * gone (as far as I know). The old driver couldn't handle
- * swapping to partitions because that involved 4k blocks, nor
- * could it deal with the st.c tape driver unmodified, because
- * that usually involved 4k - 32k blocks. The old driver never
- * quite got away from a morbid dependence on 2k block sizes -
- * which of course is the size of the card's fifo.
- *
- * - Target Disconnection/Reconnection is now supported. Any
- * system with more than one device active on the SCSI bus
- * will benefit from this. The driver defaults to what I'm
- * calling 'adaptive disconnect' - meaning that each command
- * is evaluated individually as to whether or not it should
- * be run with the option to disconnect/reselect (if the
- * device chooses), or as a "SCSI-bus-hog".
- *
- * - Synchronous data transfers are now supported. Because there
- * are a few devices (and many improperly terminated systems)
- * that choke when doing sync, the default is sync DISABLED
- * for all devices. This faster protocol can (and should!)
- * be enabled on selected devices via the command-line.
- *
- * - Runtime operating parameters can now be specified through
- * either the LILO or the 'insmod' command line. For LILO do:
- * "in2000=blah,blah,blah"
- * and with insmod go like:
- * "insmod /usr/src/linux/modules/in2000.o setup_strings=blah,blah"
- * The defaults should be good for most people. See the comment
- * for 'setup_strings' below for more details.
- *
- * - The old driver relied exclusively on what the Western Digital
- * docs call "Combination Level 2 Commands", which are a great
- * idea in that the CPU is relieved of a lot of interrupt
- * overhead. However, by accepting a certain (user-settable)
- * amount of additional interrupts, this driver achieves
- * better control over the SCSI bus, and data transfers are
- * almost as fast while being much easier to define, track,
- * and debug.
- *
- * - You can force detection of a card whose BIOS has been disabled.
- *
- * - Multiple IN2000 cards might almost be supported. I've tried to
- * keep it in mind, but have no way to test...
- *
- *
- * TODO:
- * tagged queuing. multiple cards.
- *
- *
- * NOTE:
- * When using this or any other SCSI driver as a module, you'll
- * find that with the stock kernel, at most _two_ SCSI hard
- * drives will be linked into the device list (ie, usable).
- * If your IN2000 card has more than 2 disks on its bus, you
- * might want to change the define of 'SD_EXTRA_DEVS' in the
- * 'hosts.h' file from 2 to whatever is appropriate. It took
- * me a while to track down this surprisingly obscure and
- * undocumented little "feature".
- *
- *
- * People with bug reports, wish-lists, complaints, comments,
- * or improvements are asked to pah-leeez email me (John Shifflett)
- * at john@geolog.com or jshiffle@netcom.com! I'm anxious to get
- * this thing into as good a shape as possible, and I'm positive
- * there are lots of lurking bugs and "Stupid Places".
- *
- * Updated for Linux 2.5 by Alan Cox <alan@lxorguk.ukuu.org.uk>
- * - Using new_eh handler
- * - Hopefully got all the locking right again
- * See "FIXME" notes for items that could do with more work
- */
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/stat.h>
-
-#include <asm/io.h>
-
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-
-#define IN2000_VERSION "1.33-2.5"
-#define IN2000_DATE "2002/11/03"
-
-#include "in2000.h"
-
-
-/*
- * 'setup_strings' is a single string used to pass operating parameters and
- * settings from the kernel/module command-line to the driver. 'setup_args[]'
- * is an array of strings that define the compile-time default values for
- * these settings. If Linux boots with a LILO or insmod command-line, those
- * settings are combined with 'setup_args[]'. Note that LILO command-lines
- * are prefixed with "in2000=" while insmod uses a "setup_strings=" prefix.
- * The driver recognizes the following keywords (lower case required) and
- * arguments:
- *
- * - ioport:addr -Where addr is IO address of a (usually ROM-less) card.
- * - noreset -No optional args. Prevents SCSI bus reset at boot time.
- * - nosync:x -x is a bitmask where the 1st 7 bits correspond with
- * the 7 possible SCSI devices (bit 0 for device #0, etc).
- * Set a bit to PREVENT sync negotiation on that device.
- * The driver default is sync DISABLED on all devices.
- * - period:ns -ns is the minimum # of nanoseconds in a SCSI data transfer
- * period. Default is 500; acceptable values are 250 - 1000.
- * - disconnect:x -x = 0 to never allow disconnects, 2 to always allow them.
- * x = 1 does 'adaptive' disconnects, which is the default
- * and generally the best choice.
- * - debug:x -If 'DEBUGGING_ON' is defined, x is a bitmask that causes
- * various types of debug output to printed - see the DB_xxx
- * defines in in2000.h
- * - proc:x -If 'PROC_INTERFACE' is defined, x is a bitmask that
- * determines how the /proc interface works and what it
- * does - see the PR_xxx defines in in2000.h
- *
- * Syntax Notes:
- * - Numeric arguments can be decimal or the '0x' form of hex notation. There
- * _must_ be a colon between a keyword and its numeric argument, with no
- * spaces.
- * - Keywords are separated by commas, no spaces, in the standard kernel
- * command-line manner.
- * - A keyword in the 'nth' comma-separated command-line member will overwrite
- * the 'nth' element of setup_args[]. A blank command-line member (in
- * other words, a comma with no preceding keyword) will _not_ overwrite
- * the corresponding setup_args[] element.
- *
- * A few LILO examples (for insmod, use 'setup_strings' instead of 'in2000'):
- * - in2000=ioport:0x220,noreset
- * - in2000=period:250,disconnect:2,nosync:0x03
- * - in2000=debug:0x1e
- * - in2000=proc:3
- */
-
-/* Normally, no defaults are specified... */
-static char *setup_args[] = { "", "", "", "", "", "", "", "", "" };
-
-/* filled in by 'insmod' */
-static char *setup_strings;
-
-module_param(setup_strings, charp, 0);
-
-static inline uchar read_3393(struct IN2000_hostdata *hostdata, uchar reg_num)
-{
- write1_io(reg_num, IO_WD_ADDR);
- return read1_io(IO_WD_DATA);
-}
-
-
-#define READ_AUX_STAT() read1_io(IO_WD_ASR)
-
-
-static inline void write_3393(struct IN2000_hostdata *hostdata, uchar reg_num, uchar value)
-{
- write1_io(reg_num, IO_WD_ADDR);
- write1_io(value, IO_WD_DATA);
-}
-
-
-static inline void write_3393_cmd(struct IN2000_hostdata *hostdata, uchar cmd)
-{
-/* while (READ_AUX_STAT() & ASR_CIP)
- printk("|");*/
- write1_io(WD_COMMAND, IO_WD_ADDR);
- write1_io(cmd, IO_WD_DATA);
-}
-
-
-static uchar read_1_byte(struct IN2000_hostdata *hostdata)
-{
- uchar asr, x = 0;
-
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO | 0x80);
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- x = read_3393(hostdata, WD_DATA);
- } while (!(asr & ASR_INT));
- return x;
-}
-
-
-static void write_3393_count(struct IN2000_hostdata *hostdata, unsigned long value)
-{
- write1_io(WD_TRANSFER_COUNT_MSB, IO_WD_ADDR);
- write1_io((value >> 16), IO_WD_DATA);
- write1_io((value >> 8), IO_WD_DATA);
- write1_io(value, IO_WD_DATA);
-}
-
-
-static unsigned long read_3393_count(struct IN2000_hostdata *hostdata)
-{
- unsigned long value;
-
- write1_io(WD_TRANSFER_COUNT_MSB, IO_WD_ADDR);
- value = read1_io(IO_WD_DATA) << 16;
- value |= read1_io(IO_WD_DATA) << 8;
- value |= read1_io(IO_WD_DATA);
- return value;
-}
-
-
-/* The 33c93 needs to be told which direction a command transfers its
- * data; we use this function to figure it out. Returns true if there
- * will be a DATA_OUT phase with this command, false otherwise.
- * (Thanks to Joerg Dorchain for the research and suggestion.)
- */
-static int is_dir_out(Scsi_Cmnd * cmd)
-{
- switch (cmd->cmnd[0]) {
- case WRITE_6:
- case WRITE_10:
- case WRITE_12:
- case WRITE_LONG:
- case WRITE_SAME:
- case WRITE_BUFFER:
- case WRITE_VERIFY:
- case WRITE_VERIFY_12:
- case COMPARE:
- case COPY:
- case COPY_VERIFY:
- case SEARCH_EQUAL:
- case SEARCH_HIGH:
- case SEARCH_LOW:
- case SEARCH_EQUAL_12:
- case SEARCH_HIGH_12:
- case SEARCH_LOW_12:
- case FORMAT_UNIT:
- case REASSIGN_BLOCKS:
- case RESERVE:
- case MODE_SELECT:
- case MODE_SELECT_10:
- case LOG_SELECT:
- case SEND_DIAGNOSTIC:
- case CHANGE_DEFINITION:
- case UPDATE_BLOCK:
- case SET_WINDOW:
- case MEDIUM_SCAN:
- case SEND_VOLUME_TAG:
- case 0xea:
- return 1;
- default:
- return 0;
- }
-}
-
-
-
-static struct sx_period sx_table[] = {
- {1, 0x20},
- {252, 0x20},
- {376, 0x30},
- {500, 0x40},
- {624, 0x50},
- {752, 0x60},
- {876, 0x70},
- {1000, 0x00},
- {0, 0}
-};
-
-static int round_period(unsigned int period)
-{
- int x;
-
- for (x = 1; sx_table[x].period_ns; x++) {
- if ((period <= sx_table[x - 0].period_ns) && (period > sx_table[x - 1].period_ns)) {
- return x;
- }
- }
- return 7;
-}
-
-static uchar calc_sync_xfer(unsigned int period, unsigned int offset)
-{
- uchar result;
-
- period *= 4; /* convert SDTR code to ns */
- result = sx_table[round_period(period)].reg_value;
- result |= (offset < OPTIMUM_SX_OFF) ? offset : OPTIMUM_SX_OFF;
- return result;
-}
-
-
-
-static void in2000_execute(struct Scsi_Host *instance);
-
-static int in2000_queuecommand_lck(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *tmp;
-
- instance = cmd->device->host;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- DB(DB_QUEUE_COMMAND, scmd_printk(KERN_DEBUG, cmd, "Q-%02x(", cmd->cmnd[0]))
-
-/* Set up a few fields in the Scsi_Cmnd structure for our own use:
- * - host_scribble is the pointer to the next cmd in the input queue
- * - scsi_done points to the routine we call when a cmd is finished
- * - result is what you'd expect
- */
- cmd->host_scribble = NULL;
- cmd->scsi_done = done;
- cmd->result = 0;
-
-/* We use the Scsi_Pointer structure that's included with each command
- * as a scratchpad (as it's intended to be used!). The handy thing about
- * the SCp.xxx fields is that they're always associated with a given
- * cmd, and are preserved across disconnect-reselect. This means we
- * can pretty much ignore SAVE_POINTERS and RESTORE_POINTERS messages
- * if we keep all the critical pointers and counters in SCp:
- * - SCp.ptr is the pointer into the RAM buffer
- * - SCp.this_residual is the size of that buffer
- * - SCp.buffer points to the current scatter-gather buffer
- * - SCp.buffers_residual tells us how many S.G. buffers there are
- * - SCp.have_data_in helps keep track of >2048 byte transfers
- * - SCp.sent_command is not used
- * - SCp.phase records this command's SRCID_ER bit setting
- */
-
- if (scsi_bufflen(cmd)) {
- cmd->SCp.buffer = scsi_sglist(cmd);
- cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
- } else {
- cmd->SCp.buffer = NULL;
- cmd->SCp.buffers_residual = 0;
- cmd->SCp.ptr = NULL;
- cmd->SCp.this_residual = 0;
- }
- cmd->SCp.have_data_in = 0;
-
-/* We don't set SCp.phase here - that's done in in2000_execute() */
-
-/* WD docs state that at the conclusion of a "LEVEL2" command, the
- * status byte can be retrieved from the LUN register. Apparently,
- * this is the case only for *uninterrupted* LEVEL2 commands! If
- * there are any unexpected phases entered, even if they are 100%
- * legal (different devices may choose to do things differently),
- * the LEVEL2 command sequence is exited. This often occurs prior
- * to receiving the status byte, in which case the driver does a
- * status phase interrupt and gets the status byte on its own.
- * While such a command can then be "resumed" (ie restarted to
- * finish up as a LEVEL2 command), the LUN register will NOT be
- * a valid status byte at the command's conclusion, and we must
- * use the byte obtained during the earlier interrupt. Here, we
- * preset SCp.Status to an illegal value (0xff) so that when
- * this command finally completes, we can tell where the actual
- * status byte is stored.
- */
-
- cmd->SCp.Status = ILLEGAL_STATUS_BYTE;
-
-/* We need to disable interrupts before messing with the input
- * queue and calling in2000_execute().
- */
-
- /*
- * Add the cmd to the end of 'input_Q'. Note that REQUEST_SENSE
- * commands are added to the head of the queue so that the desired
- * sense data is not lost before REQUEST_SENSE executes.
- */
-
- if (!(hostdata->input_Q) || (cmd->cmnd[0] == REQUEST_SENSE)) {
- cmd->host_scribble = (uchar *) hostdata->input_Q;
- hostdata->input_Q = cmd;
- } else { /* find the end of the queue */
- for (tmp = (Scsi_Cmnd *) hostdata->input_Q; tmp->host_scribble; tmp = (Scsi_Cmnd *) tmp->host_scribble);
- tmp->host_scribble = (uchar *) cmd;
- }
-
-/* We know that there's at least one command in 'input_Q' now.
- * Go see if any of them are runnable!
- */
-
- in2000_execute(cmd->device->host);
-
- DB(DB_QUEUE_COMMAND, printk(")Q "))
- return 0;
-}
-
-static DEF_SCSI_QCMD(in2000_queuecommand)
-
-
-
-/*
- * This routine attempts to start a scsi command. If the host_card is
- * already connected, we give up immediately. Otherwise, look through
- * the input_Q, using the first command we find that's intended
- * for a currently non-busy target/lun.
- * Note that this function is always called with interrupts already
- * disabled (either from in2000_queuecommand() or in2000_intr()).
- */
-static void in2000_execute(struct Scsi_Host *instance)
-{
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *cmd, *prev;
- int i;
- unsigned short *sp;
- unsigned short f;
- unsigned short flushbuf[16];
-
-
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- DB(DB_EXECUTE, printk("EX("))
-
- if (hostdata->selecting || hostdata->connected) {
-
- DB(DB_EXECUTE, printk(")EX-0 "))
-
- return;
- }
-
- /*
- * Search through the input_Q for a command destined
- * for an idle target/lun.
- */
-
- cmd = (Scsi_Cmnd *) hostdata->input_Q;
- prev = NULL;
- while (cmd) {
- if (!(hostdata->busy[cmd->device->id] & (1 << cmd->device->lun)))
- break;
- prev = cmd;
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
-
- /* quit if queue empty or all possible targets are busy */
-
- if (!cmd) {
-
- DB(DB_EXECUTE, printk(")EX-1 "))
-
- return;
- }
-
- /* remove command from queue */
-
- if (prev)
- prev->host_scribble = cmd->host_scribble;
- else
- hostdata->input_Q = (Scsi_Cmnd *) cmd->host_scribble;
-
-#ifdef PROC_STATISTICS
- hostdata->cmd_cnt[cmd->device->id]++;
-#endif
-
-/*
- * Start the selection process
- */
-
- if (is_dir_out(cmd))
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id);
- else
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id | DSTID_DPD);
-
-/* Now we need to figure out whether or not this command is a good
- * candidate for disconnect/reselect. We guess to the best of our
- * ability, based on a set of hierarchical rules. When several
- * devices are operating simultaneously, disconnects are usually
- * an advantage. In a single device system, or if only 1 device
- * is being accessed, transfers usually go faster if disconnects
- * are not allowed:
- *
- * + Commands should NEVER disconnect if hostdata->disconnect =
- * DIS_NEVER (this holds for tape drives also), and ALWAYS
- * disconnect if hostdata->disconnect = DIS_ALWAYS.
- * + Tape drive commands should always be allowed to disconnect.
- * + Disconnect should be allowed if disconnected_Q isn't empty.
- * + Commands should NOT disconnect if input_Q is empty.
- * + Disconnect should be allowed if there are commands in input_Q
- * for a different target/lun. In this case, the other commands
- * should be made disconnect-able, if not already.
- *
- * I know, I know - this code would flunk me out of any
- * "C Programming 101" class ever offered. But it's easy
- * to change around and experiment with for now.
- */
-
- cmd->SCp.phase = 0; /* assume no disconnect */
- if (hostdata->disconnect == DIS_NEVER)
- goto no;
- if (hostdata->disconnect == DIS_ALWAYS)
- goto yes;
- if (cmd->device->type == 1) /* tape drive? */
- goto yes;
- if (hostdata->disconnected_Q) /* other commands disconnected? */
- goto yes;
- if (!(hostdata->input_Q)) /* input_Q empty? */
- goto no;
- for (prev = (Scsi_Cmnd *) hostdata->input_Q; prev; prev = (Scsi_Cmnd *) prev->host_scribble) {
- if ((prev->device->id != cmd->device->id) || (prev->device->lun != cmd->device->lun)) {
- for (prev = (Scsi_Cmnd *) hostdata->input_Q; prev; prev = (Scsi_Cmnd *) prev->host_scribble)
- prev->SCp.phase = 1;
- goto yes;
- }
- }
- goto no;
-
- yes:
- cmd->SCp.phase = 1;
-
-#ifdef PROC_STATISTICS
- hostdata->disc_allowed_cnt[cmd->device->id]++;
-#endif
-
- no:
- write_3393(hostdata, WD_SOURCE_ID, ((cmd->SCp.phase) ? SRCID_ER : 0));
-
- write_3393(hostdata, WD_TARGET_LUN, cmd->device->lun);
- write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, hostdata->sync_xfer[cmd->device->id]);
- hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
-
- if ((hostdata->level2 <= L2_NONE) || (hostdata->sync_stat[cmd->device->id] == SS_UNSET)) {
-
- /*
- * Do a 'Select-With-ATN' command. This will end with
- * one of the following interrupts:
- * CSR_RESEL_AM: failure - can try again later.
- * CSR_TIMEOUT: failure - give up.
- * CSR_SELECT: success - proceed.
- */
-
- hostdata->selecting = cmd;
-
-/* Every target has its own synchronous transfer setting, kept in
- * the sync_xfer array, and a corresponding status byte in sync_stat[].
- * Each target's sync_stat[] entry is initialized to SS_UNSET, and its
- * sync_xfer[] entry is initialized to the default/safe value. SS_UNSET
- * means that the parameters are undetermined as yet, and that we
- * need to send an SDTR message to this device after selection is
- * complete. We set SS_FIRST to tell the interrupt routine to do so,
- * unless we don't want to even _try_ synchronous transfers: In this
- * case we set SS_SET to make the defaults final.
- */
- if (hostdata->sync_stat[cmd->device->id] == SS_UNSET) {
- if (hostdata->sync_off & (1 << cmd->device->id))
- hostdata->sync_stat[cmd->device->id] = SS_SET;
- else
- hostdata->sync_stat[cmd->device->id] = SS_FIRST;
- }
- hostdata->state = S_SELECTING;
- write_3393_count(hostdata, 0); /* this guarantees a DATA_PHASE interrupt */
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN);
- }
-
- else {
-
- /*
- * Do a 'Select-With-ATN-Xfer' command. This will end with
- * one of the following interrupts:
- * CSR_RESEL_AM: failure - can try again later.
- * CSR_TIMEOUT: failure - give up.
- * anything else: success - proceed.
- */
-
- hostdata->connected = cmd;
- write_3393(hostdata, WD_COMMAND_PHASE, 0);
-
- /* copy command_descriptor_block into WD chip
- * (take advantage of auto-incrementing)
- */
-
- write1_io(WD_CDB_1, IO_WD_ADDR);
- for (i = 0; i < cmd->cmd_len; i++)
- write1_io(cmd->cmnd[i], IO_WD_DATA);
-
- /* The wd33c93 only knows about Group 0, 1, and 5 commands when
- * it's doing a 'select-and-transfer'. To be safe, we write the
- * size of the CDB into the OWN_ID register for every case. This
- * way there won't be problems with vendor-unique, audio, etc.
- */
-
- write_3393(hostdata, WD_OWN_ID, cmd->cmd_len);
-
- /* When doing a non-disconnect command, we can save ourselves a DATA
- * phase interrupt later by setting everything up now. With writes we
- * need to pre-fill the fifo; if there's room for the 32 flush bytes,
- * put them in there too - that'll avoid a fifo interrupt. Reads are
- * somewhat simpler.
- * KLUDGE NOTE: It seems that you can't completely fill the fifo here:
- * This results in the IO_FIFO_COUNT register rolling over to zero,
- * and apparently the gate array logic sees this as empty, not full,
- * so the 3393 chip is never signalled to start reading from the
- * fifo. Or maybe it's seen as a permanent fifo interrupt condition.
- * Regardless, we fix this by temporarily pretending that the fifo
- * is 16 bytes smaller. (I see now that the old driver has a comment
- * about "don't fill completely" in an analogous place - must be the
- * same deal.) This results in CDROM, swap partitions, and tape drives
- * needing an extra interrupt per write command - I think we can live
- * with that!
- */
-
- if (!(cmd->SCp.phase)) {
- write_3393_count(hostdata, cmd->SCp.this_residual);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_BUS);
- write1_io(0, IO_FIFO_WRITE); /* clear fifo counter, write mode */
-
- if (is_dir_out(cmd)) {
- hostdata->fifo = FI_FIFO_WRITING;
- if ((i = cmd->SCp.this_residual) > (IN2000_FIFO_SIZE - 16))
- i = IN2000_FIFO_SIZE - 16;
- cmd->SCp.have_data_in = i; /* this much data in fifo */
- i >>= 1; /* Gulp. Assuming modulo 2. */
- sp = (unsigned short *) cmd->SCp.ptr;
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_WRITE_IO
-
- FAST_WRITE2_IO();
-#else
- while (i--)
- write2_io(*sp++, IO_FIFO);
-
-#endif
-
- /* Is there room for the flush bytes? */
-
- if (cmd->SCp.have_data_in <= ((IN2000_FIFO_SIZE - 16) - 32)) {
- sp = flushbuf;
- i = 16;
-
-#ifdef FAST_WRITE_IO
-
- FAST_WRITE2_IO();
-#else
- while (i--)
- write2_io(0, IO_FIFO);
-
-#endif
-
- }
- }
-
- else {
- write1_io(0, IO_FIFO_READ); /* put fifo in read mode */
- hostdata->fifo = FI_FIFO_READING;
- cmd->SCp.have_data_in = 0; /* nothing transferred yet */
- }
-
- } else {
- write_3393_count(hostdata, 0); /* this guarantees a DATA_PHASE interrupt */
- }
- hostdata->state = S_RUNNING_LEVEL2;
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- }
-
- /*
- * Since the SCSI bus can handle only 1 connection at a time,
- * we get out of here now. If the selection fails, or when
- * the command disconnects, we'll come back to this routine
- * to search the input_Q again...
- */
-
- DB(DB_EXECUTE, printk("%s)EX-2 ", (cmd->SCp.phase) ? "d:" : ""))
-
-}
-
-
-
-static void transfer_pio(uchar * buf, int cnt, int data_in_dir, struct IN2000_hostdata *hostdata)
-{
- uchar asr;
-
- DB(DB_TRANSFER, printk("(%p,%d,%s)", buf, cnt, data_in_dir ? "in" : "out"))
-
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393_count(hostdata, cnt);
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
- if (data_in_dir) {
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- *buf++ = read_3393(hostdata, WD_DATA);
- } while (!(asr & ASR_INT));
- } else {
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- write_3393(hostdata, WD_DATA, *buf++);
- } while (!(asr & ASR_INT));
- }
-
- /* Note: we are returning with the interrupt UN-cleared.
- * Since (presumably) an entire I/O operation has
- * completed, the bus phase is probably different, and
- * the interrupt routine will discover this when it
- * responds to the uncleared int.
- */
-
-}
-
-
-
-static void transfer_bytes(Scsi_Cmnd * cmd, int data_in_dir)
-{
- struct IN2000_hostdata *hostdata;
- unsigned short *sp;
- unsigned short f;
- int i;
-
- hostdata = (struct IN2000_hostdata *) cmd->device->host->hostdata;
-
-/* Normally, you'd expect 'this_residual' to be non-zero here.
- * In a series of scatter-gather transfers, however, this
- * routine will usually be called with 'this_residual' equal
- * to 0 and 'buffers_residual' non-zero. This means that a
- * previous transfer completed, clearing 'this_residual', and
- * now we need to setup the next scatter-gather buffer as the
- * source or destination for THIS transfer.
- */
- if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
- ++cmd->SCp.buffer;
- --cmd->SCp.buffers_residual;
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- }
-
-/* Set up hardware registers */
-
- write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, hostdata->sync_xfer[cmd->device->id]);
- write_3393_count(hostdata, cmd->SCp.this_residual);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_BUS);
- write1_io(0, IO_FIFO_WRITE); /* zero counter, assume write */
-
-/* Reading is easy. Just issue the command and return - we'll
- * get an interrupt later when we have actual data to worry about.
- */
-
- if (data_in_dir) {
- write1_io(0, IO_FIFO_READ);
- if ((hostdata->level2 >= L2_DATA) || (hostdata->level2 == L2_BASIC && cmd->SCp.phase == 0)) {
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
- hostdata->fifo = FI_FIFO_READING;
- cmd->SCp.have_data_in = 0;
- return;
- }
-
-/* Writing is more involved - we'll start the WD chip and write as
- * much data to the fifo as we can right now. Later interrupts will
- * write any bytes that don't make it at this stage.
- */
-
- if ((hostdata->level2 >= L2_DATA) || (hostdata->level2 == L2_BASIC && cmd->SCp.phase == 0)) {
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
- hostdata->fifo = FI_FIFO_WRITING;
- sp = (unsigned short *) cmd->SCp.ptr;
-
- if ((i = cmd->SCp.this_residual) > IN2000_FIFO_SIZE)
- i = IN2000_FIFO_SIZE;
- cmd->SCp.have_data_in = i;
- i >>= 1; /* Gulp. We assume this_residual is modulo 2 */
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_WRITE_IO
-
- FAST_WRITE2_IO();
-#else
- while (i--)
- write2_io(*sp++, IO_FIFO);
-
-#endif
-
-}
-
-
-/* We need to use spin_lock_irqsave() & spin_unlock_irqrestore() in this
- * function in order to work in an SMP environment. (I'd be surprised
- * if the driver is ever used by anyone on a real multi-CPU motherboard,
- * but it _does_ need to be able to compile and run in an SMP kernel.)
- */
-
-static irqreturn_t in2000_intr(int irqnum, void *dev_id)
-{
- struct Scsi_Host *instance = dev_id;
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *patch, *cmd;
- uchar asr, sr, phs, id, lun, *ucp, msg;
- int i, j;
- unsigned long length;
- unsigned short *sp;
- unsigned short f;
- unsigned long flags;
-
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
-/* Get the spin_lock and disable further ints, for SMP */
-
- spin_lock_irqsave(instance->host_lock, flags);
-
-#ifdef PROC_STATISTICS
- hostdata->int_cnt++;
-#endif
-
-/* The IN2000 card has 2 interrupt sources OR'ed onto its IRQ line - the
- * WD3393 chip and the 2k fifo (which is actually a dual-port RAM combined
- * with a big logic array, so it's a little different than what you might
- * expect). As far as I know, there's no reason that BOTH can't be active
- * at the same time, but there's a problem: while we can read the 3393
- * to tell if _it_ wants an interrupt, I don't know of a way to ask the
- * fifo the same question. The best we can do is check the 3393 and if
- * it _isn't_ the source of the interrupt, then we can be pretty sure
- * that the fifo is the culprit.
- * UPDATE: I have it on good authority (Bill Earnest) that bit 0 of the
- * IO_FIFO_COUNT register mirrors the fifo interrupt state. I
- * assume that bit clear means interrupt active. As it turns
- * out, the driver really doesn't need to check for this after
- * all, so my remarks above about a 'problem' can safely be
- * ignored. The way the logic is set up, there's no advantage
- * (that I can see) to worrying about it.
- *
- * It seems that the fifo interrupt signal is negated when we extract
- * bytes during read or write bytes during write.
- * - fifo will interrupt when data is moving from it to the 3393, and
- * there are 31 (or less?) bytes left to go. This is sort of short-
- * sighted: what if you don't WANT to do more? In any case, our
- * response is to push more into the fifo - either actual data or
- * dummy bytes if need be. Note that we apparently have to write at
- * least 32 additional bytes to the fifo after an interrupt in order
- * to get it to release the ones it was holding on to - writing fewer
- * than 32 will result in another fifo int.
- * UPDATE: Again, info from Bill Earnest makes this more understandable:
- * 32 bytes = two counts of the fifo counter register. He tells
- * me that the fifo interrupt is a non-latching signal derived
- * from a straightforward boolean interpretation of the 7
- * highest bits of the fifo counter and the fifo-read/fifo-write
- * state. Who'd a thought?
- */
-
- write1_io(0, IO_LED_ON);
- asr = READ_AUX_STAT();
- if (!(asr & ASR_INT)) { /* no WD33c93 interrupt? */
-
-/* Ok. This is definitely a FIFO-only interrupt.
- *
- * If FI_FIFO_READING is set, there are up to 2048 bytes waiting to be read,
- * maybe more to come from the SCSI bus. Read as many as we can out of the
- * fifo and into memory at the location of SCp.ptr[SCp.have_data_in], and
- * update have_data_in afterwards.
- *
- * If we have FI_FIFO_WRITING, the FIFO has almost run out of bytes to move
- * into the WD3393 chip (I think the interrupt happens when there are 31
- * bytes left, but it may be fewer...). The 3393 is still waiting, so we
- * shove some more into the fifo, which gets things moving again. If the
- * original SCSI command specified more than 2048 bytes, there may still
- * be some of that data left: fine - use it (from SCp.ptr[SCp.have_data_in]).
- * Don't forget to update have_data_in. If we've already written out the
- * entire buffer, feed 32 dummy bytes to the fifo - they're needed to
- * push out the remaining real data.
- * (Big thanks to Bill Earnest for getting me out of the mud in here.)
- */
-
- cmd = (Scsi_Cmnd *) hostdata->connected; /* assume we're connected */
- CHECK_NULL(cmd, "fifo_int")
-
- if (hostdata->fifo == FI_FIFO_READING) {
-
- DB(DB_FIFO, printk("{R:%02x} ", read1_io(IO_FIFO_COUNT)))
-
- sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i = read1_io(IO_FIFO_COUNT) & 0xfe;
- i <<= 2; /* # of words waiting in the fifo */
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_READ_IO
-
- FAST_READ2_IO();
-#else
- while (i--)
- *sp++ = read2_io(IO_FIFO);
-
-#endif
-
- i = sp - (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i <<= 1;
- cmd->SCp.have_data_in += i;
- }
-
- else if (hostdata->fifo == FI_FIFO_WRITING) {
-
- DB(DB_FIFO, printk("{W:%02x} ", read1_io(IO_FIFO_COUNT)))
-
-/* If all bytes have been written to the fifo, flush out the stragglers.
- * Note that while writing 16 dummy words seems arbitrary, we don't
- * have another choice that I can see. What we really want is to read
- * the 3393 transfer count register (that would tell us how many bytes
- * needed flushing), but the TRANSFER_INFO command hasn't completed
- * yet (not enough bytes!) and that register won't be accessible. So,
- * we use 16 words - a number obtained through trial and error.
- * UPDATE: Bill says this is exactly what Always does, so there.
- * More thanks due him for help in this section.
- */
- if (cmd->SCp.this_residual == cmd->SCp.have_data_in) {
- i = 16;
- while (i--) /* write 32 dummy bytes */
- write2_io(0, IO_FIFO);
- }
-
-/* If there are still bytes left in the SCSI buffer, write as many as we
- * can out to the fifo.
- */
-
- else {
- sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i = cmd->SCp.this_residual - cmd->SCp.have_data_in; /* bytes yet to go */
- j = read1_io(IO_FIFO_COUNT) & 0xfe;
- j <<= 2; /* how many words the fifo has room for */
- if ((j << 1) > i)
- j = (i >> 1);
- while (j--)
- write2_io(*sp++, IO_FIFO);
-
- i = sp - (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i <<= 1;
- cmd->SCp.have_data_in += i;
- }
- }
-
- else {
- printk("*** Spurious FIFO interrupt ***");
- }
-
- write1_io(0, IO_LED_OFF);
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
- }
-
-/* This interrupt was triggered by the WD33c93 chip. The fifo interrupt
- * may also be asserted, but we don't bother to check it: we get more
- * detailed info from FIFO_READING and FIFO_WRITING (see below).
- */
-
- cmd = (Scsi_Cmnd *) hostdata->connected; /* assume we're connected */
- sr = read_3393(hostdata, WD_SCSI_STATUS); /* clear the interrupt */
- phs = read_3393(hostdata, WD_COMMAND_PHASE);
-
- if (!cmd && (sr != CSR_RESEL_AM && sr != CSR_TIMEOUT && sr != CSR_SELECT)) {
- printk("\nNR:wd-intr-1\n");
- write1_io(0, IO_LED_OFF);
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
- }
-
- DB(DB_INTR, printk("{%02x:%02x-", asr, sr))
-
-/* After starting a FIFO-based transfer, the next _WD3393_ interrupt is
- * guaranteed to be in response to the completion of the transfer.
- * If we were reading, there's probably data in the fifo that needs
- * to be copied into RAM - do that here. Also, we have to update
- * 'this_residual' and 'ptr' based on the contents of the
- * TRANSFER_COUNT register, in case the device decided to do an
- * intermediate disconnect (a device may do this if it has to
- * do a seek, or just to be nice and let other devices have
- * some bus time during long transfers).
- * After doing whatever is necessary with the fifo, we go on and
- * service the WD3393 interrupt normally.
- */
- if (hostdata->fifo == FI_FIFO_READING) {
-
-/* buffer index = start-of-buffer + #-of-bytes-already-read */
-
- sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
-
-/* bytes remaining in fifo = (total-wanted - #-not-got) - #-already-read */
-
- i = (cmd->SCp.this_residual - read_3393_count(hostdata)) - cmd->SCp.have_data_in;
- i >>= 1; /* Gulp. We assume this will always be modulo 2 */
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_READ_IO
-
- FAST_READ2_IO();
-#else
- while (i--)
- *sp++ = read2_io(IO_FIFO);
-
-#endif
-
- hostdata->fifo = FI_FIFO_UNUSED;
- length = cmd->SCp.this_residual;
- cmd->SCp.this_residual = read_3393_count(hostdata);
- cmd->SCp.ptr += (length - cmd->SCp.this_residual);
-
- DB(DB_TRANSFER, printk("(%p,%d)", cmd->SCp.ptr, cmd->SCp.this_residual))
-
- }
-
- else if (hostdata->fifo == FI_FIFO_WRITING) {
- hostdata->fifo = FI_FIFO_UNUSED;
- length = cmd->SCp.this_residual;
- cmd->SCp.this_residual = read_3393_count(hostdata);
- cmd->SCp.ptr += (length - cmd->SCp.this_residual);
-
- DB(DB_TRANSFER, printk("(%p,%d)", cmd->SCp.ptr, cmd->SCp.this_residual))
-
- }
-
-/* Respond to the specific WD3393 interrupt - there are quite a few! */
-
- switch (sr) {
-
- case CSR_TIMEOUT:
- DB(DB_INTR, printk("TIMEOUT"))
-
- if (hostdata->state == S_RUNNING_LEVEL2)
- hostdata->connected = NULL;
- else {
- cmd = (Scsi_Cmnd *) hostdata->selecting; /* get a valid cmd */
- CHECK_NULL(cmd, "csr_timeout")
- hostdata->selecting = NULL;
- }
-
- cmd->result = DID_NO_CONNECT << 16;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- cmd->scsi_done(cmd);
-
-/* We are not connected to a target - check to see if there
- * are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- break;
-
-
-/* Note: this interrupt should not occur in a LEVEL2 command */
-
- case CSR_SELECT:
- DB(DB_INTR, printk("SELECT"))
- hostdata->connected = cmd = (Scsi_Cmnd *) hostdata->selecting;
- CHECK_NULL(cmd, "csr_select")
- hostdata->selecting = NULL;
-
- /* construct an IDENTIFY message with correct disconnect bit */
-
- hostdata->outgoing_msg[0] = (0x80 | 0x00 | cmd->device->lun);
- if (cmd->SCp.phase)
- hostdata->outgoing_msg[0] |= 0x40;
-
- if (hostdata->sync_stat[cmd->device->id] == SS_FIRST) {
-#ifdef SYNC_DEBUG
- printk(" sending SDTR ");
-#endif
-
- hostdata->sync_stat[cmd->device->id] = SS_WAITING;
-
- /* tack on a 2nd message to ask about synchronous transfers */
-
- hostdata->outgoing_msg[1] = EXTENDED_MESSAGE;
- hostdata->outgoing_msg[2] = 3;
- hostdata->outgoing_msg[3] = EXTENDED_SDTR;
- hostdata->outgoing_msg[4] = OPTIMUM_SX_PER / 4;
- hostdata->outgoing_msg[5] = OPTIMUM_SX_OFF;
- hostdata->outgoing_len = 6;
- } else
- hostdata->outgoing_len = 1;
-
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_XFER_DONE | PHS_DATA_IN:
- case CSR_UNEXP | PHS_DATA_IN:
- case CSR_SRV_REQ | PHS_DATA_IN:
- DB(DB_INTR, printk("IN-%d.%d", cmd->SCp.this_residual, cmd->SCp.buffers_residual))
- transfer_bytes(cmd, DATA_IN_DIR);
- if (hostdata->state != S_RUNNING_LEVEL2)
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_XFER_DONE | PHS_DATA_OUT:
- case CSR_UNEXP | PHS_DATA_OUT:
- case CSR_SRV_REQ | PHS_DATA_OUT:
- DB(DB_INTR, printk("OUT-%d.%d", cmd->SCp.this_residual, cmd->SCp.buffers_residual))
- transfer_bytes(cmd, DATA_OUT_DIR);
- if (hostdata->state != S_RUNNING_LEVEL2)
- hostdata->state = S_CONNECTED;
- break;
-
-
-/* Note: this interrupt should not occur in a LEVEL2 command */
-
- case CSR_XFER_DONE | PHS_COMMAND:
- case CSR_UNEXP | PHS_COMMAND:
- case CSR_SRV_REQ | PHS_COMMAND:
- DB(DB_INTR, printk("CMND-%02x", cmd->cmnd[0]))
- transfer_pio(cmd->cmnd, cmd->cmd_len, DATA_OUT_DIR, hostdata);
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_XFER_DONE | PHS_STATUS:
- case CSR_UNEXP | PHS_STATUS:
- case CSR_SRV_REQ | PHS_STATUS:
- DB(DB_INTR, printk("STATUS="))
-
- cmd->SCp.Status = read_1_byte(hostdata);
- DB(DB_INTR, printk("%02x", cmd->SCp.Status))
- if (hostdata->level2 >= L2_BASIC) {
- sr = read_3393(hostdata, WD_SCSI_STATUS); /* clear interrupt */
- hostdata->state = S_RUNNING_LEVEL2;
- write_3393(hostdata, WD_COMMAND_PHASE, 0x50);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- } else {
- hostdata->state = S_CONNECTED;
- }
- break;
-
-
- case CSR_XFER_DONE | PHS_MESS_IN:
- case CSR_UNEXP | PHS_MESS_IN:
- case CSR_SRV_REQ | PHS_MESS_IN:
- DB(DB_INTR, printk("MSG_IN="))
-
- msg = read_1_byte(hostdata);
- sr = read_3393(hostdata, WD_SCSI_STATUS); /* clear interrupt */
-
- hostdata->incoming_msg[hostdata->incoming_ptr] = msg;
- if (hostdata->incoming_msg[0] == EXTENDED_MESSAGE)
- msg = EXTENDED_MESSAGE;
- else
- hostdata->incoming_ptr = 0;
-
- cmd->SCp.Message = msg;
- switch (msg) {
-
- case COMMAND_COMPLETE:
- DB(DB_INTR, printk("CCMP"))
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_PRE_CMP_DISC;
- break;
-
- case SAVE_POINTERS:
- DB(DB_INTR, printk("SDP"))
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
-
- case RESTORE_POINTERS:
- DB(DB_INTR, printk("RDP"))
- if (hostdata->level2 >= L2_BASIC) {
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else {
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- }
- break;
-
- case DISCONNECT:
- DB(DB_INTR, printk("DIS"))
- cmd->device->disconnect = 1;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_PRE_TMP_DISC;
- break;
-
- case MESSAGE_REJECT:
- DB(DB_INTR, printk("REJ"))
-#ifdef SYNC_DEBUG
- printk("-REJ-");
-#endif
- if (hostdata->sync_stat[cmd->device->id] == SS_WAITING)
- hostdata->sync_stat[cmd->device->id] = SS_SET;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
-
- case EXTENDED_MESSAGE:
- DB(DB_INTR, printk("EXT"))
-
- ucp = hostdata->incoming_msg;
-
-#ifdef SYNC_DEBUG
- printk("%02x", ucp[hostdata->incoming_ptr]);
-#endif
- /* Is this the last byte of the extended message? */
-
- if ((hostdata->incoming_ptr >= 2) && (hostdata->incoming_ptr == (ucp[1] + 1))) {
-
- switch (ucp[2]) { /* what's the EXTENDED code? */
- case EXTENDED_SDTR:
- id = calc_sync_xfer(ucp[3], ucp[4]);
- if (hostdata->sync_stat[cmd->device->id] != SS_WAITING) {
-
-/* A device has sent an unsolicited SDTR message; rather than go
- * through the effort of decoding it and then figuring out what
- * our reply should be, we're just gonna say that we have a
- * synchronous fifo depth of 0. This will result in asynchronous
- * transfers - not ideal but so much easier.
- * Actually, this is OK because it assures us that if we don't
- * specifically ask for sync transfers, we won't do any.
- */
-
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- hostdata->outgoing_msg[0] = EXTENDED_MESSAGE;
- hostdata->outgoing_msg[1] = 3;
- hostdata->outgoing_msg[2] = EXTENDED_SDTR;
- hostdata->outgoing_msg[3] = hostdata->default_sx_per / 4;
- hostdata->outgoing_msg[4] = 0;
- hostdata->outgoing_len = 5;
- hostdata->sync_xfer[cmd->device->id] = calc_sync_xfer(hostdata->default_sx_per / 4, 0);
- } else {
- hostdata->sync_xfer[cmd->device->id] = id;
- }
-#ifdef SYNC_DEBUG
- printk("sync_xfer=%02x", hostdata->sync_xfer[cmd->device->id]);
-#endif
- hostdata->sync_stat[cmd->device->id] = SS_SET;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
- case EXTENDED_WDTR:
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- printk("sending WDTR ");
- hostdata->outgoing_msg[0] = EXTENDED_MESSAGE;
- hostdata->outgoing_msg[1] = 2;
- hostdata->outgoing_msg[2] = EXTENDED_WDTR;
- hostdata->outgoing_msg[3] = 0; /* 8 bit transfer width */
- hostdata->outgoing_len = 4;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
- default:
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- printk("Rejecting Unknown Extended Message(%02x). ", ucp[2]);
- hostdata->outgoing_msg[0] = MESSAGE_REJECT;
- hostdata->outgoing_len = 1;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
- }
- hostdata->incoming_ptr = 0;
- }
-
- /* We need to read more MESS_IN bytes for the extended message */
-
- else {
- hostdata->incoming_ptr++;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- }
- break;
-
- default:
- printk("Rejecting Unknown Message(%02x) ", msg);
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- hostdata->outgoing_msg[0] = MESSAGE_REJECT;
- hostdata->outgoing_len = 1;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- }
- break;
-
-
-/* Note: this interrupt will occur only after a LEVEL2 command */
-
- case CSR_SEL_XFER_DONE:
-
-/* Make sure that reselection is enabled at this point - it may
- * have been turned off for the command that just completed.
- */
-
- write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
- if (phs == 0x60) {
- DB(DB_INTR, printk("SX-DONE"))
- cmd->SCp.Message = COMMAND_COMPLETE;
- lun = read_3393(hostdata, WD_TARGET_LUN);
- DB(DB_INTR, printk(":%d.%d", cmd->SCp.Status, lun))
- hostdata->connected = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- if (cmd->SCp.Status == ILLEGAL_STATUS_BYTE)
- cmd->SCp.Status = lun;
- if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
- cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
- else
- cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
- cmd->scsi_done(cmd);
-
-/* We are no longer connected to a target - check to see if
- * there are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- } else {
- printk("%02x:%02x:%02x: Unknown SEL_XFER_DONE phase!!---", asr, sr, phs);
- }
- break;
-
-
-/* Note: this interrupt will occur only after a LEVEL2 command */
-
- case CSR_SDP:
- DB(DB_INTR, printk("SDP"))
- hostdata->state = S_RUNNING_LEVEL2;
- write_3393(hostdata, WD_COMMAND_PHASE, 0x41);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- break;
-
-
- case CSR_XFER_DONE | PHS_MESS_OUT:
- case CSR_UNEXP | PHS_MESS_OUT:
- case CSR_SRV_REQ | PHS_MESS_OUT:
- DB(DB_INTR, printk("MSG_OUT="))
-
-/* To get here, we've probably requested MESSAGE_OUT and have
- * already put the correct bytes in outgoing_msg[] and filled
- * in outgoing_len. We simply send them out to the SCSI bus.
- * Sometimes we get MESSAGE_OUT phase when we're not expecting
- * it - like when our SDTR message is rejected by a target. Some
- * targets send the REJECT before receiving all of the extended
- * message, and then seem to go back to MESSAGE_OUT for a byte
- * or two. Not sure why, or if I'm doing something wrong to
- * cause this to happen. Regardless, it seems that sending
- * NOP messages in these situations results in no harm and
- * makes everyone happy.
- */
- if (hostdata->outgoing_len == 0) {
- hostdata->outgoing_len = 1;
- hostdata->outgoing_msg[0] = NOP;
- }
- transfer_pio(hostdata->outgoing_msg, hostdata->outgoing_len, DATA_OUT_DIR, hostdata);
- DB(DB_INTR, printk("%02x", hostdata->outgoing_msg[0]))
- hostdata->outgoing_len = 0;
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_UNEXP_DISC:
-
-/* I think I've seen this after a request-sense that was in response
- * to an error condition, but not sure. We certainly need to do
- * something when we get this interrupt - the question is 'what?'.
- * Let's think positively, and assume some command has finished
- * in a legal manner (like a command that provokes a request-sense),
- * so we treat it as a normal command-complete-disconnect.
- */
-
-
-/* Make sure that reselection is enabled at this point - it may
- * have been turned off for the command that just completed.
- */
-
- write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
- if (cmd == NULL) {
- printk(" - Already disconnected! ");
- hostdata->state = S_UNCONNECTED;
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
- }
- DB(DB_INTR, printk("UNEXP_DISC"))
- hostdata->connected = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
- cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
- else
- cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
- cmd->scsi_done(cmd);
-
-/* We are no longer connected to a target - check to see if
- * there are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- break;
-
-
- case CSR_DISC:
-
-/* Make sure that reselection is enabled at this point - it may
- * have been turned off for the command that just completed.
- */
-
- write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
- DB(DB_INTR, printk("DISC"))
- if (cmd == NULL) {
- printk(" - Already disconnected! ");
- hostdata->state = S_UNCONNECTED;
- }
- switch (hostdata->state) {
- case S_PRE_CMP_DISC:
- hostdata->connected = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- DB(DB_INTR, printk(":%d", cmd->SCp.Status))
- if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
- cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
- else
- cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
- cmd->scsi_done(cmd);
- break;
- case S_PRE_TMP_DISC:
- case S_RUNNING_LEVEL2:
- cmd->host_scribble = (uchar *) hostdata->disconnected_Q;
- hostdata->disconnected_Q = cmd;
- hostdata->connected = NULL;
- hostdata->state = S_UNCONNECTED;
-
-#ifdef PROC_STATISTICS
- hostdata->disc_done_cnt[cmd->device->id]++;
-#endif
-
- break;
- default:
- printk("*** Unexpected DISCONNECT interrupt! ***");
- hostdata->state = S_UNCONNECTED;
- }
-
-/* We are no longer connected to a target - check to see if
- * there are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- break;
-
-
- case CSR_RESEL_AM:
- DB(DB_INTR, printk("RESEL"))
-
- /* First we have to make sure this reselection didn't */
- /* happen during Arbitration/Selection of some other device. */
- /* If yes, put losing command back on top of input_Q. */
- if (hostdata->level2 <= L2_NONE) {
-
- if (hostdata->selecting) {
- cmd = (Scsi_Cmnd *) hostdata->selecting;
- hostdata->selecting = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- cmd->host_scribble = (uchar *) hostdata->input_Q;
- hostdata->input_Q = cmd;
- }
- }
-
- else {
-
- if (cmd) {
- if (phs == 0x00) {
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- cmd->host_scribble = (uchar *) hostdata->input_Q;
- hostdata->input_Q = cmd;
- } else {
- printk("---%02x:%02x:%02x-TROUBLE: Intrusive ReSelect!---", asr, sr, phs);
- while (1)
- printk("\r");
- }
- }
-
- }
-
- /* OK - find out which device reselected us. */
-
- id = read_3393(hostdata, WD_SOURCE_ID);
- id &= SRCID_MASK;
-
- /* and extract the lun from the ID message. (Note that we don't
- * bother to check for a valid message here - I guess this is
- * not the right way to go, but....)
- */
-
- lun = read_3393(hostdata, WD_DATA);
- if (hostdata->level2 < L2_RESELECT)
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- lun &= 7;
-
- /* Now we look for the command that's reconnecting. */
-
- cmd = (Scsi_Cmnd *) hostdata->disconnected_Q;
- patch = NULL;
- while (cmd) {
- if (id == cmd->device->id && lun == cmd->device->lun)
- break;
- patch = cmd;
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
-
- /* Hmm. Couldn't find a valid command.... What to do? */
-
- if (!cmd) {
- printk("---TROUBLE: target %d.%d not in disconnect queue---", id, lun);
- break;
- }
-
- /* Ok, found the command - now start it up again. */
-
- if (patch)
- patch->host_scribble = cmd->host_scribble;
- else
- hostdata->disconnected_Q = (Scsi_Cmnd *) cmd->host_scribble;
- hostdata->connected = cmd;
-
- /* We don't need to worry about 'initialize_SCp()' or 'hostdata->busy[]'
- * because these things are preserved over a disconnect.
- * But we DO need to fix the DPD bit so it's correct for this command.
- */
-
- if (is_dir_out(cmd))
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id);
- else
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id | DSTID_DPD);
- if (hostdata->level2 >= L2_RESELECT) {
- write_3393_count(hostdata, 0); /* we want a DATA_PHASE interrupt */
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else
- hostdata->state = S_CONNECTED;
-
- break;
-
- default:
- printk("--UNKNOWN INTERRUPT:%02x:%02x:%02x--", asr, sr, phs);
- }
-
- write1_io(0, IO_LED_OFF);
-
- DB(DB_INTR, printk("} "))
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-
-
-#define RESET_CARD 0
-#define RESET_CARD_AND_BUS 1
-#define B_FLAG 0x80
-
-/*
- * Caller must hold instance lock!
- */
-
-static int reset_hardware(struct Scsi_Host *instance, int type)
-{
- struct IN2000_hostdata *hostdata;
- int qt, x;
-
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- write1_io(0, IO_LED_ON);
- if (type == RESET_CARD_AND_BUS) {
- write1_io(0, IO_CARD_RESET);
- x = read1_io(IO_HARDWARE);
- }
- x = read_3393(hostdata, WD_SCSI_STATUS); /* clear any WD intrpt */
- write_3393(hostdata, WD_OWN_ID, instance->this_id | OWNID_EAF | OWNID_RAF | OWNID_FS_8);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, calc_sync_xfer(hostdata->default_sx_per / 4, DEFAULT_SX_OFF));
-
- write1_io(0, IO_FIFO_WRITE); /* clear fifo counter */
- write1_io(0, IO_FIFO_READ); /* start fifo out in read mode */
- write_3393(hostdata, WD_COMMAND, WD_CMD_RESET);
- /* FIXME: timeout ?? */
- while (!(READ_AUX_STAT() & ASR_INT))
- cpu_relax(); /* wait for RESET to complete */
-
- x = read_3393(hostdata, WD_SCSI_STATUS); /* clear interrupt */
-
- write_3393(hostdata, WD_QUEUE_TAG, 0xa5); /* any random number */
- qt = read_3393(hostdata, WD_QUEUE_TAG);
- if (qt == 0xa5) {
- x |= B_FLAG;
- write_3393(hostdata, WD_QUEUE_TAG, 0);
- }
- write_3393(hostdata, WD_TIMEOUT_PERIOD, TIMEOUT_PERIOD_VALUE);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write1_io(0, IO_LED_OFF);
- return x;
-}
-
-
-
-static int in2000_bus_reset(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- int x;
- unsigned long flags;
-
- instance = cmd->device->host;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- printk(KERN_WARNING "scsi%d: Reset. ", instance->host_no);
-
- spin_lock_irqsave(instance->host_lock, flags);
-
- /* do scsi-reset here */
- reset_hardware(instance, RESET_CARD_AND_BUS);
- for (x = 0; x < 8; x++) {
- hostdata->busy[x] = 0;
- hostdata->sync_xfer[x] = calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF);
- hostdata->sync_stat[x] = SS_UNSET; /* using default sync values */
- }
- hostdata->input_Q = NULL;
- hostdata->selecting = NULL;
- hostdata->connected = NULL;
- hostdata->disconnected_Q = NULL;
- hostdata->state = S_UNCONNECTED;
- hostdata->fifo = FI_FIFO_UNUSED;
- hostdata->incoming_ptr = 0;
- hostdata->outgoing_len = 0;
-
- cmd->result = DID_RESET << 16;
-
- spin_unlock_irqrestore(instance->host_lock, flags);
- return SUCCESS;
-}
-
-static int __in2000_abort(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *tmp, *prev;
- uchar sr, asr;
- unsigned long timeout;
-
- instance = cmd->device->host;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- printk(KERN_DEBUG "scsi%d: Abort-", instance->host_no);
- printk("(asr=%02x,count=%ld,resid=%d,buf_resid=%d,have_data=%d,FC=%02x)- ", READ_AUX_STAT(), read_3393_count(hostdata), cmd->SCp.this_residual, cmd->SCp.buffers_residual, cmd->SCp.have_data_in, read1_io(IO_FIFO_COUNT));
-
-/*
- * Case 1 : If the command hasn't been issued yet, we simply remove it
- * from the inout_Q.
- */
-
- tmp = (Scsi_Cmnd *) hostdata->input_Q;
- prev = NULL;
- while (tmp) {
- if (tmp == cmd) {
- if (prev)
- prev->host_scribble = cmd->host_scribble;
- cmd->host_scribble = NULL;
- cmd->result = DID_ABORT << 16;
- printk(KERN_WARNING "scsi%d: Abort - removing command from input_Q. ", instance->host_no);
- cmd->scsi_done(cmd);
- return SUCCESS;
- }
- prev = tmp;
- tmp = (Scsi_Cmnd *) tmp->host_scribble;
- }
-
-/*
- * Case 2 : If the command is connected, we're going to fail the abort
- * and let the high level SCSI driver retry at a later time or
- * issue a reset.
- *
- * Timeouts, and therefore aborted commands, will be highly unlikely
- * and handling them cleanly in this situation would make the common
- * case of noresets less efficient, and would pollute our code. So,
- * we fail.
- */
-
- if (hostdata->connected == cmd) {
-
- printk(KERN_WARNING "scsi%d: Aborting connected command - ", instance->host_no);
-
- printk("sending wd33c93 ABORT command - ");
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393_cmd(hostdata, WD_CMD_ABORT);
-
-/* Now we have to attempt to flush out the FIFO... */
-
- printk("flushing fifo - ");
- timeout = 1000000;
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- read_3393(hostdata, WD_DATA);
- } while (!(asr & ASR_INT) && timeout-- > 0);
- sr = read_3393(hostdata, WD_SCSI_STATUS);
- printk("asr=%02x, sr=%02x, %ld bytes un-transferred (timeout=%ld) - ", asr, sr, read_3393_count(hostdata), timeout);
-
- /*
- * Abort command processed.
- * Still connected.
- * We must disconnect.
- */
-
- printk("sending wd33c93 DISCONNECT command - ");
- write_3393_cmd(hostdata, WD_CMD_DISCONNECT);
-
- timeout = 1000000;
- asr = READ_AUX_STAT();
- while ((asr & ASR_CIP) && timeout-- > 0)
- asr = READ_AUX_STAT();
- sr = read_3393(hostdata, WD_SCSI_STATUS);
- printk("asr=%02x, sr=%02x.", asr, sr);
-
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->connected = NULL;
- hostdata->state = S_UNCONNECTED;
- cmd->result = DID_ABORT << 16;
- cmd->scsi_done(cmd);
-
- in2000_execute(instance);
-
- return SUCCESS;
- }
-
-/*
- * Case 3: If the command is currently disconnected from the bus,
- * we're not going to expend much effort here: Let's just return
- * an ABORT_SNOOZE and hope for the best...
- */
-
- for (tmp = (Scsi_Cmnd *) hostdata->disconnected_Q; tmp; tmp = (Scsi_Cmnd *) tmp->host_scribble)
- if (cmd == tmp) {
- printk(KERN_DEBUG "scsi%d: unable to abort disconnected command.\n", instance->host_no);
- return FAILED;
- }
-
-/*
- * Case 4 : If we reached this point, the command was not found in any of
- * the queues.
- *
- * We probably reached this point because of an unlikely race condition
- * between the command completing successfully and the abortion code,
- * so we won't panic, but we will notify the user in case something really
- * broke.
- */
-
- in2000_execute(instance);
-
- printk("scsi%d: warning : SCSI command probably completed successfully" " before abortion. ", instance->host_no);
- return SUCCESS;
-}
-
-static int in2000_abort(Scsi_Cmnd * cmd)
-{
- int rc;
-
- spin_lock_irq(cmd->device->host->host_lock);
- rc = __in2000_abort(cmd);
- spin_unlock_irq(cmd->device->host->host_lock);
-
- return rc;
-}
-
-
-#define MAX_IN2000_HOSTS 3
-#define MAX_SETUP_ARGS ARRAY_SIZE(setup_args)
-#define SETUP_BUFFER_SIZE 200
-static char setup_buffer[SETUP_BUFFER_SIZE];
-static char setup_used[MAX_SETUP_ARGS];
-static int done_setup = 0;
-
-static void __init in2000_setup(char *str, int *ints)
-{
- int i;
- char *p1, *p2;
-
- strlcpy(setup_buffer, str, SETUP_BUFFER_SIZE);
- p1 = setup_buffer;
- i = 0;
- while (*p1 && (i < MAX_SETUP_ARGS)) {
- p2 = strchr(p1, ',');
- if (p2) {
- *p2 = '\0';
- if (p1 != p2)
- setup_args[i] = p1;
- p1 = p2 + 1;
- i++;
- } else {
- setup_args[i] = p1;
- break;
- }
- }
- for (i = 0; i < MAX_SETUP_ARGS; i++)
- setup_used[i] = 0;
- done_setup = 1;
-}
-
-
-/* check_setup_args() returns index if key found, 0 if not
- */
-
-static int __init check_setup_args(char *key, int *val, char *buf)
-{
- int x;
- char *cp;
-
- for (x = 0; x < MAX_SETUP_ARGS; x++) {
- if (setup_used[x])
- continue;
- if (!strncmp(setup_args[x], key, strlen(key)))
- break;
- }
- if (x == MAX_SETUP_ARGS)
- return 0;
- setup_used[x] = 1;
- cp = setup_args[x] + strlen(key);
- *val = -1;
- if (*cp != ':')
- return ++x;
- cp++;
- if ((*cp >= '0') && (*cp <= '9')) {
- *val = simple_strtoul(cp, NULL, 0);
- }
- return ++x;
-}
-
-
-
-/* The "correct" (ie portable) way to access memory-mapped hardware
- * such as the IN2000 EPROM and dip switch is through the use of
- * special macros declared in 'asm/io.h'. We use readb() and readl()
- * when reading from the card's BIOS area in in2000_detect().
- */
-static u32 bios_tab[] in2000__INITDATA = {
- 0xc8000,
- 0xd0000,
- 0xd8000,
- 0
-};
-
-static unsigned short base_tab[] in2000__INITDATA = {
- 0x220,
- 0x200,
- 0x110,
- 0x100,
-};
-
-static int int_tab[] in2000__INITDATA = {
- 15,
- 14,
- 11,
- 10
-};
-
-static int probe_bios(u32 addr, u32 *s1, uchar *switches)
-{
- void __iomem *p = ioremap(addr, 0x34);
- if (!p)
- return 0;
- *s1 = readl(p + 0x10);
- if (*s1 == 0x41564f4e || readl(p + 0x30) == 0x61776c41) {
- /* Read the switch image that's mapped into EPROM space */
- *switches = ~readb(p + 0x20);
- iounmap(p);
- return 1;
- }
- iounmap(p);
- return 0;
-}
-
-static int __init in2000_detect(struct scsi_host_template * tpnt)
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- int detect_count;
- int bios;
- int x;
- unsigned short base;
- uchar switches;
- uchar hrev;
- unsigned long flags;
- int val;
- char buf[32];
-
-/* Thanks to help from Bill Earnest, probing for IN2000 cards is a
- * pretty straightforward and fool-proof operation. There are 3
- * possible locations for the IN2000 EPROM in memory space - if we
- * find a BIOS signature, we can read the dip switch settings from
- * the byte at BIOS+32 (shadowed in by logic on the card). From 2
- * of the switch bits we get the card's address in IO space. There's
- * an image of the dip switch there, also, so we have a way to back-
- * check that this really is an IN2000 card. Very nifty. Use the
- * 'ioport:xx' command-line parameter if your BIOS EPROM is absent
- * or disabled.
- */
-
- if (!done_setup && setup_strings)
- in2000_setup(setup_strings, NULL);
-
- detect_count = 0;
- for (bios = 0; bios_tab[bios]; bios++) {
- u32 s1 = 0;
- if (check_setup_args("ioport", &val, buf)) {
- base = val;
- switches = ~inb(base + IO_SWITCHES) & 0xff;
- printk("Forcing IN2000 detection at IOport 0x%x ", base);
- bios = 2;
- }
-/*
- * There have been a couple of BIOS versions with different layouts
- * for the obvious ID strings. We look for the 2 most common ones and
- * hope that they cover all the cases...
- */
- else if (probe_bios(bios_tab[bios], &s1, &switches)) {
- printk("Found IN2000 BIOS at 0x%x ", (unsigned int) bios_tab[bios]);
-
-/* Find out where the IO space is */
-
- x = switches & (SW_ADDR0 | SW_ADDR1);
- base = base_tab[x];
-
-/* Check for the IN2000 signature in IO space. */
-
- x = ~inb(base + IO_SWITCHES) & 0xff;
- if (x != switches) {
- printk("Bad IO signature: %02x vs %02x.\n", x, switches);
- continue;
- }
- } else
- continue;
-
-/* OK. We have a base address for the IO ports - run a few safety checks */
-
- if (!(switches & SW_BIT7)) { /* I _think_ all cards do this */
- printk("There is no IN-2000 SCSI card at IOport 0x%03x!\n", base);
- continue;
- }
-
-/* Let's assume any hardware version will work, although the driver
- * has only been tested on 0x21, 0x22, 0x25, 0x26, and 0x27. We'll
- * print out the rev number for reference later, but accept them all.
- */
-
- hrev = inb(base + IO_HARDWARE);
-
- /* Bit 2 tells us if interrupts are disabled */
- if (switches & SW_DISINT) {
- printk("The IN-2000 SCSI card at IOport 0x%03x ", base);
- printk("is not configured for interrupt operation!\n");
- printk("This driver requires an interrupt: cancelling detection.\n");
- continue;
- }
-
-/* Ok. We accept that there's an IN2000 at ioaddr 'base'. Now
- * initialize it.
- */
-
- tpnt->proc_name = "in2000";
- instance = scsi_register(tpnt, sizeof(struct IN2000_hostdata));
- if (instance == NULL)
- continue;
- detect_count++;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
- instance->io_port = hostdata->io_base = base;
- hostdata->dip_switch = switches;
- hostdata->hrev = hrev;
-
- write1_io(0, IO_FIFO_WRITE); /* clear fifo counter */
- write1_io(0, IO_FIFO_READ); /* start fifo out in read mode */
- write1_io(0, IO_INTR_MASK); /* allow all ints */
- x = int_tab[(switches & (SW_INT0 | SW_INT1)) >> SW_INT_SHIFT];
- if (request_irq(x, in2000_intr, 0, "in2000", instance)) {
- printk("in2000_detect: Unable to allocate IRQ.\n");
- detect_count--;
- continue;
- }
- instance->irq = x;
- instance->n_io_port = 13;
- request_region(base, 13, "in2000"); /* lock in this IO space for our use */
-
- for (x = 0; x < 8; x++) {
- hostdata->busy[x] = 0;
- hostdata->sync_xfer[x] = calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF);
- hostdata->sync_stat[x] = SS_UNSET; /* using default sync values */
-#ifdef PROC_STATISTICS
- hostdata->cmd_cnt[x] = 0;
- hostdata->disc_allowed_cnt[x] = 0;
- hostdata->disc_done_cnt[x] = 0;
-#endif
- }
- hostdata->input_Q = NULL;
- hostdata->selecting = NULL;
- hostdata->connected = NULL;
- hostdata->disconnected_Q = NULL;
- hostdata->state = S_UNCONNECTED;
- hostdata->fifo = FI_FIFO_UNUSED;
- hostdata->level2 = L2_BASIC;
- hostdata->disconnect = DIS_ADAPTIVE;
- hostdata->args = DEBUG_DEFAULTS;
- hostdata->incoming_ptr = 0;
- hostdata->outgoing_len = 0;
- hostdata->default_sx_per = DEFAULT_SX_PER;
-
-/* Older BIOS's had a 'sync on/off' switch - use its setting */
-
- if (s1 == 0x41564f4e && (switches & SW_SYNC_DOS5))
- hostdata->sync_off = 0x00; /* sync defaults to on */
- else
- hostdata->sync_off = 0xff; /* sync defaults to off */
-
-#ifdef PROC_INTERFACE
- hostdata->proc = PR_VERSION | PR_INFO | PR_STATISTICS | PR_CONNECTED | PR_INPUTQ | PR_DISCQ | PR_STOP;
-#ifdef PROC_STATISTICS
- hostdata->int_cnt = 0;
-#endif
-#endif
-
- if (check_setup_args("nosync", &val, buf))
- hostdata->sync_off = val;
-
- if (check_setup_args("period", &val, buf))
- hostdata->default_sx_per = sx_table[round_period((unsigned int) val)].period_ns;
-
- if (check_setup_args("disconnect", &val, buf)) {
- if ((val >= DIS_NEVER) && (val <= DIS_ALWAYS))
- hostdata->disconnect = val;
- else
- hostdata->disconnect = DIS_ADAPTIVE;
- }
-
- if (check_setup_args("noreset", &val, buf))
- hostdata->args ^= A_NO_SCSI_RESET;
-
- if (check_setup_args("level2", &val, buf))
- hostdata->level2 = val;
-
- if (check_setup_args("debug", &val, buf))
- hostdata->args = (val & DB_MASK);
-
-#ifdef PROC_INTERFACE
- if (check_setup_args("proc", &val, buf))
- hostdata->proc = val;
-#endif
-
-
- /* FIXME: not strictly needed I think but the called code expects
- to be locked */
- spin_lock_irqsave(instance->host_lock, flags);
- x = reset_hardware(instance, (hostdata->args & A_NO_SCSI_RESET) ? RESET_CARD : RESET_CARD_AND_BUS);
- spin_unlock_irqrestore(instance->host_lock, flags);
-
- hostdata->microcode = read_3393(hostdata, WD_CDB_1);
- if (x & 0x01) {
- if (x & B_FLAG)
- hostdata->chip = C_WD33C93B;
- else
- hostdata->chip = C_WD33C93A;
- } else
- hostdata->chip = C_WD33C93;
-
- printk("dip_switch=%02x irq=%d ioport=%02x floppy=%s sync/DOS5=%s ", (switches & 0x7f), instance->irq, hostdata->io_base, (switches & SW_FLOPPY) ? "Yes" : "No", (switches & SW_SYNC_DOS5) ? "Yes" : "No");
- printk("hardware_ver=%02x chip=%s microcode=%02x\n", hrev, (hostdata->chip == C_WD33C93) ? "WD33c93" : (hostdata->chip == C_WD33C93A) ? "WD33c93A" : (hostdata->chip == C_WD33C93B) ? "WD33c93B" : "unknown", hostdata->microcode);
-#ifdef DEBUGGING_ON
- printk("setup_args = ");
- for (x = 0; x < MAX_SETUP_ARGS; x++)
- printk("%s,", setup_args[x]);
- printk("\n");
-#endif
- if (hostdata->sync_off == 0xff)
- printk("Sync-transfer DISABLED on all devices: ENABLE from command-line\n");
- printk("IN2000 driver version %s - %s\n", IN2000_VERSION, IN2000_DATE);
- }
-
- return detect_count;
-}
-
-static int in2000_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, shost);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- return 0;
-}
-
-/* NOTE: I lifted this function straight out of the old driver,
- * and have not tested it. Presumably it does what it's
- * supposed to do...
- */
-
-static int in2000_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int *iinfo)
-{
- int size;
-
- size = capacity;
- iinfo[0] = 64;
- iinfo[1] = 32;
- iinfo[2] = size >> 11;
-
-/* This should approximate the large drive handling that the DOS ASPI manager
- uses. Drives very near the boundaries may not be handled correctly (i.e.
- near 2.0 Gb and 4.0 Gb) */
-
- if (iinfo[2] > 1024) {
- iinfo[0] = 64;
- iinfo[1] = 63;
- iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
- }
- if (iinfo[2] > 1024) {
- iinfo[0] = 128;
- iinfo[1] = 63;
- iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
- }
- if (iinfo[2] > 1024) {
- iinfo[0] = 255;
- iinfo[1] = 63;
- iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
- }
- return 0;
-}
-
-
-static int in2000_write_info(struct Scsi_Host *instance, char *buf, int len)
-{
-
-#ifdef PROC_INTERFACE
-
- char *bp;
- struct IN2000_hostdata *hd;
- int x, i;
-
- hd = (struct IN2000_hostdata *) instance->hostdata;
-
- buf[len] = '\0';
- bp = buf;
- if (!strncmp(bp, "debug:", 6)) {
- bp += 6;
- hd->args = simple_strtoul(bp, NULL, 0) & DB_MASK;
- } else if (!strncmp(bp, "disconnect:", 11)) {
- bp += 11;
- x = simple_strtoul(bp, NULL, 0);
- if (x < DIS_NEVER || x > DIS_ALWAYS)
- x = DIS_ADAPTIVE;
- hd->disconnect = x;
- } else if (!strncmp(bp, "period:", 7)) {
- bp += 7;
- x = simple_strtoul(bp, NULL, 0);
- hd->default_sx_per = sx_table[round_period((unsigned int) x)].period_ns;
- } else if (!strncmp(bp, "resync:", 7)) {
- bp += 7;
- x = simple_strtoul(bp, NULL, 0);
- for (i = 0; i < 7; i++)
- if (x & (1 << i))
- hd->sync_stat[i] = SS_UNSET;
- } else if (!strncmp(bp, "proc:", 5)) {
- bp += 5;
- hd->proc = simple_strtoul(bp, NULL, 0);
- } else if (!strncmp(bp, "level2:", 7)) {
- bp += 7;
- hd->level2 = simple_strtoul(bp, NULL, 0);
- }
-#endif
- return len;
-}
-
-static int in2000_show_info(struct seq_file *m, struct Scsi_Host *instance)
-{
-
-#ifdef PROC_INTERFACE
- unsigned long flags;
- struct IN2000_hostdata *hd;
- Scsi_Cmnd *cmd;
- int x;
-
- hd = (struct IN2000_hostdata *) instance->hostdata;
-
- spin_lock_irqsave(instance->host_lock, flags);
- if (hd->proc & PR_VERSION)
- seq_printf(m, "\nVersion %s - %s.", IN2000_VERSION, IN2000_DATE);
-
- if (hd->proc & PR_INFO) {
- seq_printf(m, "\ndip_switch=%02x: irq=%d io=%02x floppy=%s sync/DOS5=%s", (hd->dip_switch & 0x7f), instance->irq, hd->io_base, (hd->dip_switch & 0x40) ? "Yes" : "No", (hd->dip_switch & 0x20) ? "Yes" : "No");
- seq_puts(m, "\nsync_xfer[] = ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%02x", hd->sync_xfer[x]);
- seq_puts(m, "\nsync_stat[] = ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%02x", hd->sync_stat[x]);
- }
-#ifdef PROC_STATISTICS
- if (hd->proc & PR_STATISTICS) {
- seq_puts(m, "\ncommands issued: ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%ld", hd->cmd_cnt[x]);
- seq_puts(m, "\ndisconnects allowed:");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%ld", hd->disc_allowed_cnt[x]);
- seq_puts(m, "\ndisconnects done: ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%ld", hd->disc_done_cnt[x]);
- seq_printf(m, "\ninterrupts: \t%ld", hd->int_cnt);
- }
-#endif
- if (hd->proc & PR_CONNECTED) {
- seq_puts(m, "\nconnected: ");
- if (hd->connected) {
- cmd = (Scsi_Cmnd *) hd->connected;
- seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
- }
- }
- if (hd->proc & PR_INPUTQ) {
- seq_puts(m, "\ninput_Q: ");
- cmd = (Scsi_Cmnd *) hd->input_Q;
- while (cmd) {
- seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
- }
- if (hd->proc & PR_DISCQ) {
- seq_puts(m, "\ndisconnected_Q:");
- cmd = (Scsi_Cmnd *) hd->disconnected_Q;
- while (cmd) {
- seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
- }
- if (hd->proc & PR_TEST) {
- ; /* insert your own custom function here */
- }
- seq_putc(m, '\n');
- spin_unlock_irqrestore(instance->host_lock, flags);
-#endif /* PROC_INTERFACE */
- return 0;
-}
-
-MODULE_LICENSE("GPL");
-
-
-static struct scsi_host_template driver_template = {
- .proc_name = "in2000",
- .write_info = in2000_write_info,
- .show_info = in2000_show_info,
- .name = "Always IN2000",
- .detect = in2000_detect,
- .release = in2000_release,
- .queuecommand = in2000_queuecommand,
- .eh_abort_handler = in2000_abort,
- .eh_bus_reset_handler = in2000_bus_reset,
- .bios_param = in2000_biosparam,
- .can_queue = IN2000_CAN_Q,
- .this_id = IN2000_HOST_ID,
- .sg_tablesize = IN2000_SG,
- .cmd_per_lun = IN2000_CPL,
- .use_clustering = DISABLE_CLUSTERING,
-};
-#include "scsi_module.c"
+++ /dev/null
-/*
- * in2000.h - Linux device driver definitions for the
- * Always IN2000 ISA SCSI card.
- *
- * IMPORTANT: This file is for version 1.33 - 26/Aug/1998
- *
- * Copyright (c) 1996 John Shifflett, GeoLog Consulting
- * john@geolog.com
- * jshiffle@netcom.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef IN2000_H
-#define IN2000_H
-
-#include <asm/io.h>
-
-#define PROC_INTERFACE /* add code for /proc/scsi/in2000/xxx interface */
-#ifdef PROC_INTERFACE
-#define PROC_STATISTICS /* add code for keeping various real time stats */
-#endif
-
-#define SYNC_DEBUG /* extra info on sync negotiation printed */
-#define DEBUGGING_ON /* enable command-line debugging bitmask */
-#define DEBUG_DEFAULTS 0 /* default bitmask - change from command-line */
-
-#ifdef __i386__
-#define FAST_READ_IO /* No problems with these on my machine */
-#define FAST_WRITE_IO
-#endif
-
-#ifdef DEBUGGING_ON
-#define DB(f,a) if (hostdata->args & (f)) a;
-#define CHECK_NULL(p,s) /* if (!(p)) {printk("\n"); while (1) printk("NP:%s\r",(s));} */
-#else
-#define DB(f,a)
-#define CHECK_NULL(p,s)
-#endif
-
-#define uchar unsigned char
-
-#define read1_io(a) (inb(hostdata->io_base+(a)))
-#define read2_io(a) (inw(hostdata->io_base+(a)))
-#define write1_io(b,a) (outb((b),hostdata->io_base+(a)))
-#define write2_io(w,a) (outw((w),hostdata->io_base+(a)))
-
-#ifdef __i386__
-/* These inline assembly defines are derived from a patch
- * sent to me by Bill Earnest. He's done a lot of very
- * valuable thinking, testing, and coding during his effort
- * to squeeze more speed out of this driver. I really think
- * that we are doing IO at close to the maximum now with
- * the fifo. (And yes, insw uses 'edi' while outsw uses
- * 'esi'. Thanks Bill!)
- */
-
-#define FAST_READ2_IO() \
-({ \
-int __dummy_1,__dummy_2; \
- __asm__ __volatile__ ("\n \
- cld \n \
- orl %%ecx, %%ecx \n \
- jz 1f \n \
- rep \n \
- insw (%%dx),%%es:(%%edi) \n \
-1: " \
- : "=D" (sp) ,"=c" (__dummy_1) ,"=d" (__dummy_2) /* output */ \
- : "2" (f), "0" (sp), "1" (i) /* input */ \
- ); /* trashed */ \
-})
-
-#define FAST_WRITE2_IO() \
-({ \
-int __dummy_1,__dummy_2; \
- __asm__ __volatile__ ("\n \
- cld \n \
- orl %%ecx, %%ecx \n \
- jz 1f \n \
- rep \n \
- outsw %%ds:(%%esi),(%%dx) \n \
-1: " \
- : "=S" (sp) ,"=c" (__dummy_1) ,"=d" (__dummy_2)/* output */ \
- : "2" (f), "0" (sp), "1" (i) /* input */ \
- ); /* trashed */ \
-})
-#endif
-
-/* IN2000 io_port offsets */
-#define IO_WD_ASR 0x00 /* R - 3393 auxstat reg */
-#define ASR_INT 0x80
-#define ASR_LCI 0x40
-#define ASR_BSY 0x20
-#define ASR_CIP 0x10
-#define ASR_PE 0x02
-#define ASR_DBR 0x01
-#define IO_WD_ADDR 0x00 /* W - 3393 address reg */
-#define IO_WD_DATA 0x01 /* R/W - rest of 3393 regs */
-#define IO_FIFO 0x02 /* R/W - in2000 dual-port fifo (16 bits) */
-#define IN2000_FIFO_SIZE 2048 /* fifo capacity in bytes */
-#define IO_CARD_RESET 0x03 /* W - in2000 start master reset */
-#define IO_FIFO_COUNT 0x04 /* R - in2000 fifo counter */
-#define IO_FIFO_WRITE 0x05 /* W - clear fifo counter, start write */
-#define IO_FIFO_READ 0x07 /* W - start fifo read */
-#define IO_LED_OFF 0x08 /* W - turn off in2000 activity LED */
-#define IO_SWITCHES 0x08 /* R - read in2000 dip switch */
-#define SW_ADDR0 0x01 /* bit 0 = bit 0 of index to io addr */
-#define SW_ADDR1 0x02 /* bit 1 = bit 1 of index io addr */
-#define SW_DISINT 0x04 /* bit 2 true if ints disabled */
-#define SW_INT0 0x08 /* bit 3 = bit 0 of index to interrupt */
-#define SW_INT1 0x10 /* bit 4 = bit 1 of index to interrupt */
-#define SW_INT_SHIFT 3 /* shift right this amount to right justify int bits */
-#define SW_SYNC_DOS5 0x20 /* bit 5 used by Always BIOS */
-#define SW_FLOPPY 0x40 /* bit 6 true if floppy enabled */
-#define SW_BIT7 0x80 /* bit 7 hardwired true (ground) */
-#define IO_LED_ON 0x09 /* W - turn on in2000 activity LED */
-#define IO_HARDWARE 0x0a /* R - read in2000 hardware rev, stop reset */
-#define IO_INTR_MASK 0x0c /* W - in2000 interrupt mask reg */
-#define IMASK_WD 0x01 /* WD33c93 interrupt mask */
-#define IMASK_FIFO 0x02 /* FIFO interrupt mask */
-
-/* wd register names */
-#define WD_OWN_ID 0x00
-#define WD_CONTROL 0x01
-#define WD_TIMEOUT_PERIOD 0x02
-#define WD_CDB_1 0x03
-#define WD_CDB_2 0x04
-#define WD_CDB_3 0x05
-#define WD_CDB_4 0x06
-#define WD_CDB_5 0x07
-#define WD_CDB_6 0x08
-#define WD_CDB_7 0x09
-#define WD_CDB_8 0x0a
-#define WD_CDB_9 0x0b
-#define WD_CDB_10 0x0c
-#define WD_CDB_11 0x0d
-#define WD_CDB_12 0x0e
-#define WD_TARGET_LUN 0x0f
-#define WD_COMMAND_PHASE 0x10
-#define WD_SYNCHRONOUS_TRANSFER 0x11
-#define WD_TRANSFER_COUNT_MSB 0x12
-#define WD_TRANSFER_COUNT 0x13
-#define WD_TRANSFER_COUNT_LSB 0x14
-#define WD_DESTINATION_ID 0x15
-#define WD_SOURCE_ID 0x16
-#define WD_SCSI_STATUS 0x17
-#define WD_COMMAND 0x18
-#define WD_DATA 0x19
-#define WD_QUEUE_TAG 0x1a
-#define WD_AUXILIARY_STATUS 0x1f
-
-/* WD commands */
-#define WD_CMD_RESET 0x00
-#define WD_CMD_ABORT 0x01
-#define WD_CMD_ASSERT_ATN 0x02
-#define WD_CMD_NEGATE_ACK 0x03
-#define WD_CMD_DISCONNECT 0x04
-#define WD_CMD_RESELECT 0x05
-#define WD_CMD_SEL_ATN 0x06
-#define WD_CMD_SEL 0x07
-#define WD_CMD_SEL_ATN_XFER 0x08
-#define WD_CMD_SEL_XFER 0x09
-#define WD_CMD_RESEL_RECEIVE 0x0a
-#define WD_CMD_RESEL_SEND 0x0b
-#define WD_CMD_WAIT_SEL_RECEIVE 0x0c
-#define WD_CMD_TRANS_ADDR 0x18
-#define WD_CMD_TRANS_INFO 0x20
-#define WD_CMD_TRANSFER_PAD 0x21
-#define WD_CMD_SBT_MODE 0x80
-
-/* SCSI Bus Phases */
-#define PHS_DATA_OUT 0x00
-#define PHS_DATA_IN 0x01
-#define PHS_COMMAND 0x02
-#define PHS_STATUS 0x03
-#define PHS_MESS_OUT 0x06
-#define PHS_MESS_IN 0x07
-
-/* Command Status Register definitions */
-
- /* reset state interrupts */
-#define CSR_RESET 0x00
-#define CSR_RESET_AF 0x01
-
- /* successful completion interrupts */
-#define CSR_RESELECT 0x10
-#define CSR_SELECT 0x11
-#define CSR_SEL_XFER_DONE 0x16
-#define CSR_XFER_DONE 0x18
-
- /* paused or aborted interrupts */
-#define CSR_MSGIN 0x20
-#define CSR_SDP 0x21
-#define CSR_SEL_ABORT 0x22
-#define CSR_RESEL_ABORT 0x25
-#define CSR_RESEL_ABORT_AM 0x27
-#define CSR_ABORT 0x28
-
- /* terminated interrupts */
-#define CSR_INVALID 0x40
-#define CSR_UNEXP_DISC 0x41
-#define CSR_TIMEOUT 0x42
-#define CSR_PARITY 0x43
-#define CSR_PARITY_ATN 0x44
-#define CSR_BAD_STATUS 0x45
-#define CSR_UNEXP 0x48
-
- /* service required interrupts */
-#define CSR_RESEL 0x80
-#define CSR_RESEL_AM 0x81
-#define CSR_DISC 0x85
-#define CSR_SRV_REQ 0x88
-
- /* Own ID/CDB Size register */
-#define OWNID_EAF 0x08
-#define OWNID_EHP 0x10
-#define OWNID_RAF 0x20
-#define OWNID_FS_8 0x00
-#define OWNID_FS_12 0x40
-#define OWNID_FS_16 0x80
-
- /* Control register */
-#define CTRL_HSP 0x01
-#define CTRL_HA 0x02
-#define CTRL_IDI 0x04
-#define CTRL_EDI 0x08
-#define CTRL_HHP 0x10
-#define CTRL_POLLED 0x00
-#define CTRL_BURST 0x20
-#define CTRL_BUS 0x40
-#define CTRL_DMA 0x80
-
- /* Timeout Period register */
-#define TIMEOUT_PERIOD_VALUE 20 /* results in 200 ms. */
-
- /* Synchronous Transfer Register */
-#define STR_FSS 0x80
-
- /* Destination ID register */
-#define DSTID_DPD 0x40
-#define DATA_OUT_DIR 0
-#define DATA_IN_DIR 1
-#define DSTID_SCC 0x80
-
- /* Source ID register */
-#define SRCID_MASK 0x07
-#define SRCID_SIV 0x08
-#define SRCID_DSP 0x20
-#define SRCID_ES 0x40
-#define SRCID_ER 0x80
-
-
-
-#define ILLEGAL_STATUS_BYTE 0xff
-
-
-#define DEFAULT_SX_PER 500 /* (ns) fairly safe */
-#define DEFAULT_SX_OFF 0 /* aka async */
-
-#define OPTIMUM_SX_PER 252 /* (ns) best we can do (mult-of-4) */
-#define OPTIMUM_SX_OFF 12 /* size of in2000 fifo */
-
-struct sx_period {
- unsigned int period_ns;
- uchar reg_value;
- };
-
-
-struct IN2000_hostdata {
- struct Scsi_Host *next;
- uchar chip; /* what kind of wd33c93 chip? */
- uchar microcode; /* microcode rev if 'B' */
- unsigned short io_base; /* IO port base */
- unsigned int dip_switch; /* dip switch settings */
- unsigned int hrev; /* hardware revision of card */
- volatile uchar busy[8]; /* index = target, bit = lun */
- volatile Scsi_Cmnd *input_Q; /* commands waiting to be started */
- volatile Scsi_Cmnd *selecting; /* trying to select this command */
- volatile Scsi_Cmnd *connected; /* currently connected command */
- volatile Scsi_Cmnd *disconnected_Q;/* commands waiting for reconnect */
- uchar state; /* what we are currently doing */
- uchar fifo; /* what the FIFO is up to */
- uchar level2; /* extent to which Level-2 commands are used */
- uchar disconnect; /* disconnect/reselect policy */
- unsigned int args; /* set from command-line argument */
- uchar incoming_msg[8]; /* filled during message_in phase */
- int incoming_ptr; /* mainly used with EXTENDED messages */
- uchar outgoing_msg[8]; /* send this during next message_out */
- int outgoing_len; /* length of outgoing message */
- unsigned int default_sx_per; /* default transfer period for SCSI bus */
- uchar sync_xfer[8]; /* sync_xfer reg settings per target */
- uchar sync_stat[8]; /* status of sync negotiation per target */
- uchar sync_off; /* bit mask: don't use sync with these targets */
-#ifdef PROC_INTERFACE
- uchar proc; /* bit mask: what's in proc output */
-#ifdef PROC_STATISTICS
- unsigned long cmd_cnt[8]; /* # of commands issued per target */
- unsigned long int_cnt; /* # of interrupts serviced */
- unsigned long disc_allowed_cnt[8]; /* # of disconnects allowed per target */
- unsigned long disc_done_cnt[8]; /* # of disconnects done per target*/
-#endif
-#endif
- };
-
-
-/* defines for hostdata->chip */
-
-#define C_WD33C93 0
-#define C_WD33C93A 1
-#define C_WD33C93B 2
-#define C_UNKNOWN_CHIP 100
-
-/* defines for hostdata->state */
-
-#define S_UNCONNECTED 0
-#define S_SELECTING 1
-#define S_RUNNING_LEVEL2 2
-#define S_CONNECTED 3
-#define S_PRE_TMP_DISC 4
-#define S_PRE_CMP_DISC 5
-
-/* defines for hostdata->fifo */
-
-#define FI_FIFO_UNUSED 0
-#define FI_FIFO_READING 1
-#define FI_FIFO_WRITING 2
-
-/* defines for hostdata->level2 */
-/* NOTE: only the first 3 are trustworthy at this point -
- * having trouble when more than 1 device is reading/writing
- * at the same time...
- */
-
-#define L2_NONE 0 /* no combination commands - we get lots of ints */
-#define L2_SELECT 1 /* start with SEL_ATN_XFER, but never resume it */
-#define L2_BASIC 2 /* resume after STATUS ints & RDP messages */
-#define L2_DATA 3 /* resume after DATA_IN/OUT ints */
-#define L2_MOST 4 /* resume after anything except a RESELECT int */
-#define L2_RESELECT 5 /* resume after everything, including RESELECT ints */
-#define L2_ALL 6 /* always resume */
-
-/* defines for hostdata->disconnect */
-
-#define DIS_NEVER 0
-#define DIS_ADAPTIVE 1
-#define DIS_ALWAYS 2
-
-/* defines for hostdata->args */
-
-#define DB_TEST 1<<0
-#define DB_FIFO 1<<1
-#define DB_QUEUE_COMMAND 1<<2
-#define DB_EXECUTE 1<<3
-#define DB_INTR 1<<4
-#define DB_TRANSFER 1<<5
-#define DB_MASK 0x3f
-
-#define A_NO_SCSI_RESET 1<<15
-
-
-/* defines for hostdata->sync_xfer[] */
-
-#define SS_UNSET 0
-#define SS_FIRST 1
-#define SS_WAITING 2
-#define SS_SET 3
-
-/* defines for hostdata->proc */
-
-#define PR_VERSION 1<<0
-#define PR_INFO 1<<1
-#define PR_STATISTICS 1<<2
-#define PR_CONNECTED 1<<3
-#define PR_INPUTQ 1<<4
-#define PR_DISCQ 1<<5
-#define PR_TEST 1<<6
-#define PR_STOP 1<<7
-
-
-# include <linux/init.h>
-# include <linux/spinlock.h>
-# define in2000__INITFUNC(function) __initfunc(function)
-# define in2000__INIT __init
-# define in2000__INITDATA __initdata
-# define CLISPIN_LOCK(host,flags) spin_lock_irqsave(host->host_lock, flags)
-# define CLISPIN_UNLOCK(host,flags) spin_unlock_irqrestore(host->host_lock, \
- flags)
-
-static int in2000_detect(struct scsi_host_template *) in2000__INIT;
-static int in2000_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static int in2000_abort(Scsi_Cmnd *);
-static void in2000_setup(char *, int *) in2000__INIT;
-static int in2000_biosparam(struct scsi_device *, struct block_device *,
- sector_t, int *);
-static int in2000_bus_reset(Scsi_Cmnd *);
-
-
-#define IN2000_CAN_Q 16
-#define IN2000_SG SG_ALL
-#define IN2000_CPL 2
-#define IN2000_HOST_ID 7
-
-#endif /* IN2000_H */
"9072: Link not operational transition"},
{0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
"9032: Array exposed but still protected"},
- {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
+ {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL,
"70DD: Device forced failed by disrupt device command"},
{0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
"4061: Multipath redundancy level got better"},
{0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
"4060: Multipath redundancy level got worse"},
- {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
+ {0x06808100, 0, IPR_DEBUG_LOG_LEVEL,
"9083: Device raw mode enabled"},
- {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
+ {0x06808200, 0, IPR_DEBUG_LOG_LEVEL,
"9084: Device raw mode disabled"},
{0x07270000, 0, 0,
"Failure due to other device"},
struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
- list_del(&hostrcb->queue);
+ list_del_init(&hostrcb->queue);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
if (ioasc) {
}
}
+static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa)
+{
+ struct ipr_hostrcb *hostrcb;
+
+ hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q,
+ struct ipr_hostrcb, queue);
+
+ if (unlikely(!hostrcb)) {
+ dev_info(&ioa->pdev->dev, "Reclaiming async error buffers.");
+ hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q,
+ struct ipr_hostrcb, queue);
+ }
+
+ list_del_init(&hostrcb->queue);
+ return hostrcb;
+}
+
/**
* ipr_process_error - Op done function for an adapter error log.
* @ipr_cmd: ipr command struct
struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
u32 fd_ioasc;
+ char *envp[] = { "ASYNC_ERR_LOG=1", NULL };
if (ioa_cfg->sis64)
fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
else
fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
- list_del(&hostrcb->queue);
+ list_del_init(&hostrcb->queue);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
if (!ioasc) {
"Host RCB failed with IOASC: 0x%08X\n", ioasc);
}
+ list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
+ hostrcb = ipr_get_free_hostrcb(ioa_cfg);
+ kobject_uevent_env(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE, envp);
+
ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
}
.show = ipr_show_fw_type
};
+static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *bin_attr, char *buf,
+ loff_t off, size_t count)
+{
+ struct device *cdev = container_of(kobj, struct device, kobj);
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+ struct ipr_hostrcb *hostrcb;
+ unsigned long lock_flags = 0;
+ int ret;
+
+ spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+ hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
+ struct ipr_hostrcb, queue);
+ if (!hostrcb) {
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ return 0;
+ }
+ ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam,
+ sizeof(hostrcb->hcam));
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ return ret;
+}
+
+static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *bin_attr, char *buf,
+ loff_t off, size_t count)
+{
+ struct device *cdev = container_of(kobj, struct device, kobj);
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+ struct ipr_hostrcb *hostrcb;
+ unsigned long lock_flags = 0;
+
+ spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+ hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
+ struct ipr_hostrcb, queue);
+ if (!hostrcb) {
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ return count;
+ }
+
+ /* Reclaim hostrcb before exit */
+ list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ return count;
+}
+
+static struct bin_attribute ipr_ioa_async_err_log = {
+ .attr = {
+ .name = "async_err_log",
+ .mode = S_IRUGO | S_IWUSR,
+ },
+ .size = 0,
+ .read = ipr_read_async_err_log,
+ .write = ipr_next_async_err_log
+};
+
static struct device_attribute *ipr_ioa_attrs[] = {
&ipr_fw_version_attr,
&ipr_log_level_attr,
{
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
struct ipr_resource_entry *res;
- struct ipr_hostrcb *hostrcb, *temp;
- int i = 0, j;
+ int j;
ENTER;
ioa_cfg->in_reset_reload = 0;
}
schedule_work(&ioa_cfg->work_q);
- list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
- list_del(&hostrcb->queue);
- if (i++ < IPR_NUM_LOG_HCAMS)
- ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
+ for (j = 0; j < IPR_NUM_HCAMS; j++) {
+ list_del_init(&ioa_cfg->hostrcb[j]->queue);
+ if (j < IPR_NUM_LOG_HCAMS)
+ ipr_send_hcam(ioa_cfg,
+ IPR_HCAM_CDB_OP_CODE_LOG_DATA,
+ ioa_cfg->hostrcb[j]);
else
- ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
+ ipr_send_hcam(ioa_cfg,
+ IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
+ ioa_cfg->hostrcb[j]);
}
scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
ENTER;
ipr_cmd->job_step = ipr_ioafp_std_inquiry;
- dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
+ if (ioa_cfg->identify_hrrq_index == 0)
+ dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
struct ipr_hostrcb, queue);
- list_del(&hostrcb->queue);
+ list_del_init(&hostrcb->queue);
memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
rc = ipr_get_ldump_data_section(ioa_cfg,
dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
- for (i = 0; i < IPR_NUM_HCAMS; i++) {
+ for (i = 0; i < IPR_MAX_HCAMS; i++) {
dma_free_coherent(&ioa_cfg->pdev->dev,
sizeof(struct ipr_hostrcb),
ioa_cfg->hostrcb[i],
if (!ioa_cfg->u.cfg_table)
goto out_free_host_rrq;
- for (i = 0; i < IPR_NUM_HCAMS; i++) {
+ for (i = 0; i < IPR_MAX_HCAMS; i++) {
ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
sizeof(struct ipr_hostrcb),
&ioa_cfg->hostrcb_dma[i],
INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
+ INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q);
INIT_LIST_HEAD(&ioa_cfg->free_res_q);
INIT_LIST_HEAD(&ioa_cfg->used_res_q);
INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
&ipr_trace_attr);
ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
&ipr_dump_attr);
+ sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
+ &ipr_ioa_async_err_log);
scsi_remove_host(ioa_cfg->host);
__ipr_remove(pdev);
return rc;
}
+ rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj,
+ &ipr_ioa_async_err_log);
+
+ if (rc) {
+ ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
+ &ipr_dump_attr);
+ ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
+ &ipr_trace_attr);
+ scsi_remove_host(ioa_cfg->host);
+ __ipr_remove(pdev);
+ return rc;
+ }
+
rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
&ipr_dump_attr);
if (rc) {
+ sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
+ &ipr_ioa_async_err_log);
ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
&ipr_trace_attr);
scsi_remove_host(ioa_cfg->host);
#define IPR_DEFAULT_MAX_ERROR_DUMP 984
#define IPR_NUM_LOG_HCAMS 2
#define IPR_NUM_CFG_CHG_HCAMS 2
+#define IPR_NUM_HCAM_QUEUE 12
#define IPR_NUM_HCAMS (IPR_NUM_LOG_HCAMS + IPR_NUM_CFG_CHG_HCAMS)
+#define IPR_MAX_HCAMS (IPR_NUM_HCAMS + IPR_NUM_HCAM_QUEUE)
#define IPR_MAX_SIS64_TARGETS_PER_BUS 1024
#define IPR_MAX_SIS64_LUNS_PER_TARGET 0xffffffff
u8 log_level;
#define IPR_MAX_LOG_LEVEL 4
#define IPR_DEFAULT_LOG_LEVEL 2
+#define IPR_DEBUG_LOG_LEVEL 3
#define IPR_NUM_TRACE_INDEX_BITS 8
#define IPR_NUM_TRACE_ENTRIES (1 << IPR_NUM_TRACE_INDEX_BITS)
char ipr_hcam_label[8];
#define IPR_HCAM_LABEL "hcams"
- struct ipr_hostrcb *hostrcb[IPR_NUM_HCAMS];
- dma_addr_t hostrcb_dma[IPR_NUM_HCAMS];
+ struct ipr_hostrcb *hostrcb[IPR_MAX_HCAMS];
+ dma_addr_t hostrcb_dma[IPR_MAX_HCAMS];
struct list_head hostrcb_free_q;
struct list_head hostrcb_pending_q;
+ struct list_head hostrcb_report_q;
struct ipr_hrr_queue hrrq[IPR_MAX_HRRQ_NUM];
u32 hrrq_num;
int rc = 1;
spin_lock_bh(&ep->ex_lock);
- fc_exch_abort_locked(ep, 0);
ep->state |= FC_EX_RST_CLEANUP;
fc_exch_timer_cancel(ep);
if (ep->esb_stat & ESB_ST_REC_QUAL)
*/
static int fc_rport_logoff(struct fc_rport_priv *rdata)
{
+ struct fc_lport *lport = rdata->local_port;
+ u32 port_id = rdata->ids.port_id;
+
mutex_lock(&rdata->rp_mutex);
FC_RPORT_DBG(rdata, "Remove port\n");
FC_RPORT_DBG(rdata, "Port in Delete state, not removing\n");
goto out;
}
+ /*
+ * FC-LS states:
+ * To explicitly Logout, the initiating Nx_Port shall terminate
+ * other open Sequences that it initiated with the destination
+ * Nx_Port prior to performing Logout.
+ */
+ lport->tt.exch_mgr_reset(lport, 0, port_id);
+ lport->tt.exch_mgr_reset(lport, port_id, 0);
+
fc_rport_enter_logo(rdata);
/*
*/
static void fc_rport_error(struct fc_rport_priv *rdata, struct fc_frame *fp)
{
+ struct fc_lport *lport = rdata->local_port;
+
FC_RPORT_DBG(rdata, "Error %ld in state %s, retries %d\n",
IS_ERR(fp) ? -PTR_ERR(fp) : 0,
fc_rport_state(rdata), rdata->retries);
switch (rdata->rp_state) {
case RPORT_ST_FLOGI:
- case RPORT_ST_PLOGI:
rdata->flags &= ~FC_RP_STARTED;
fc_rport_enter_delete(rdata, RPORT_EV_FAILED);
break;
+ case RPORT_ST_PLOGI:
+ if (lport->point_to_multipoint) {
+ rdata->flags &= ~FC_RP_STARTED;
+ fc_rport_enter_delete(rdata, RPORT_EV_FAILED);
+ } else
+ fc_rport_enter_logo(rdata);
+ break;
case RPORT_ST_RTV:
fc_rport_enter_ready(rdata);
break;
spp->spp_type_ext = rspp->spp_type_ext;
spp->spp_flags = FC_SPP_RESP_ACK;
- fc_rport_enter_delete(rdata, RPORT_EV_LOGO);
+ fc_rport_enter_prli(rdata);
fc_fill_reply_hdr(fp, rx_fp, FC_RCTL_ELS_REP, 0);
lport->tt.frame_send(lport, fp);
FC_RPORT_DBG(rdata, "Received LOGO request while in state %s\n",
fc_rport_state(rdata));
- fc_rport_enter_delete(rdata, RPORT_EV_LOGO);
+ fc_rport_enter_delete(rdata, RPORT_EV_STOP);
mutex_unlock(&rdata->rp_mutex);
kref_put(&rdata->kref, rdata->local_port->tt.rport_destroy);
} else
}
/* Routines for all individual HBA attributes */
-int
+static int
lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
{
struct lpfc_fdmi_attr_entry *ae;
ad->AttrType = cpu_to_be16(RHBA_NODENAME);
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
{
struct lpfc_hba *phba = vport->phba;
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
}
/* Routines for all individual PORT attributes */
-int
+static int
lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_class(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return size;
}
-int
+static int
lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport,
struct lpfc_fdmi_attr_def *ad)
{
return sentplogi;
}
-uint32_t
+static uint32_t
lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
uint32_t word0)
{
return sizeof(struct fc_rdp_link_service_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
uint8_t *page_a0, uint8_t *page_a2)
{
return sizeof(struct fc_rdp_sfp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
READ_LNK_VAR *stat)
{
return sizeof(struct fc_rdp_link_error_status_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
struct lpfc_vport *vport)
{
return sizeof(struct fc_rdp_bbc_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
{
return sizeof(struct fc_rdp_oed_sfp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
return sizeof(struct fc_rdp_oed_sfp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
return sizeof(struct fc_rdp_oed_sfp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
}
-uint32_t
+static uint32_t
lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
return sizeof(struct fc_rdp_oed_sfp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
uint8_t *page_a0, struct lpfc_vport *vport)
{
return sizeof(struct fc_rdp_opd_sfp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
{
if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
return sizeof(struct fc_fec_rdp_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
{
uint16_t rdp_cap = 0;
return sizeof(struct fc_rdp_port_speed_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
struct lpfc_hba *phba)
{
return sizeof(struct fc_rdp_port_name_desc);
}
-uint32_t
+static uint32_t
lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
return sizeof(struct fc_rdp_port_name_desc);
}
-void
+static void
lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
int status)
{
kfree(rdp_context);
}
-int
+static int
lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
{
LPFC_MBOXQ_t *mbox = NULL;
}
}
-void
+static void
lpfc_start_fdmi(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
return 0;
}
-void
+static void
lpfc_mbx_cmpl_rdp_link_stat(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
MAILBOX_t *mb;
rdp_context->cmpl(phba, rdp_context, rc);
}
-void
+static void
lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) mbox->context1;
return rc;
}
-void
+static void
lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
uint32_t feature)
{
* Since ABORTS must go on the same WQ of the command they are
* aborting, we use command's fcp_wqidx.
*/
-int
+static int
lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb)
{
megasas_build_and_issue_cmd(struct megasas_instance *instance,
struct scsi_cmnd *scmd);
static void megasas_complete_cmd_dpc(unsigned long instance_addr);
-void
-megasas_release_fusion(struct megasas_instance *instance);
-int
-megasas_ioc_init_fusion(struct megasas_instance *instance);
-void
-megasas_free_cmds_fusion(struct megasas_instance *instance);
-u8
-megasas_get_map_info(struct megasas_instance *instance);
-int
-megasas_sync_map_info(struct megasas_instance *instance);
int
wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
int seconds);
-void megasas_reset_reply_desc(struct megasas_instance *instance);
void megasas_fusion_ocr_wq(struct work_struct *work);
static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
int initial);
-int megasas_check_mpio_paths(struct megasas_instance *instance,
- struct scsi_cmnd *scmd);
int
megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
/* Find first memory bar */
bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
- instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
+ instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
"megasas: LSI")) {
dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
&instance->consumer_h);
if (!instance->producer || !instance->consumer) {
- dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate"
+ dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate "
"memory for producer, consumer\n");
goto fail_alloc_dma_buf;
}
unsigned long flags;
u32 wait_time = MEGASAS_RESET_WAIT_TIME;
- ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
- if (!ioc)
- return -ENOMEM;
-
- if (copy_from_user(ioc, user_ioc, sizeof(*ioc))) {
- error = -EFAULT;
- goto out_kfree_ioc;
- }
+ ioc = memdup_user(user_ioc, sizeof(*ioc));
+ if (IS_ERR(ioc))
+ return PTR_ERR(ioc);
instance = megasas_lookup_instance(ioc->host_no);
if (!instance) {
} u;
};
+void megasas_free_cmds_fusion(struct megasas_instance *instance);
+int megasas_ioc_init_fusion(struct megasas_instance *instance);
+u8 megasas_get_map_info(struct megasas_instance *instance);
+int megasas_sync_map_info(struct megasas_instance *instance);
+void megasas_release_fusion(struct megasas_instance *instance);
+void megasas_reset_reply_desc(struct megasas_instance *instance);
+int megasas_check_mpio_paths(struct megasas_instance *instance,
+ struct scsi_cmnd *scmd);
+void megasas_fusion_ocr_wq(struct work_struct *work);
#endif /* _MEGARAID_SAS_FUSION_H_ */
" enable detection of firmware fault and halt firmware - (default=0)");
static int
-_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
+_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc);
/**
* _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
ioc->non_operational_loop = 0;
if ((doorbell & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) {
- rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
pr_warn(MPT3SAS_FMT "%s: hard reset: %s\n", ioc->name,
__func__, (rc == 0) ? "success" : "failed");
doorbell = mpt3sas_base_get_iocstate(ioc, 0);
* mpt3sas_base_unmap_resources - free controller resources
* @ioc: per adapter object
*/
-void
+static void
mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
{
struct pci_dev *pdev = ioc->pdev;
_base_mask_interrupts(ioc);
- r = _base_get_ioc_facts(ioc, CAN_SLEEP);
+ r = _base_get_ioc_facts(ioc);
if (r)
goto out_fail;
/**
* _base_allocate_memory_pools - allocate start of day memory pools
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 success, anything else error
*/
static int
-_base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
{
struct mpt3sas_facts *facts;
u16 max_sge_elements;
* _base_wait_on_iocstate - waiting on a particular ioc state
* @ioc_state: controller state { READY, OPERATIONAL, or RESET }
* @timeout: timeout in second
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
- int sleep_flag)
+_base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout)
{
u32 count, cntdn;
u32 current_state;
count = 0;
- cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+ cntdn = 1000 * timeout;
do {
current_state = mpt3sas_base_get_iocstate(ioc, 1);
if (current_state == ioc_state)
return 0;
if (count && current_state == MPI2_IOC_STATE_FAULT)
break;
- if (sleep_flag == CAN_SLEEP)
- usleep_range(1000, 1500);
- else
- udelay(500);
+
+ usleep_range(1000, 1500);
count++;
} while (--cntdn);
* a write to the doorbell)
* @ioc: per adapter object
* @timeout: timeout in second
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*
* Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
*/
static int
-_base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
+_base_diag_reset(struct MPT3SAS_ADAPTER *ioc);
static int
-_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout,
- int sleep_flag)
+_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout)
{
u32 cntdn, count;
u32 int_status;
count = 0;
- cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+ cntdn = 1000 * timeout;
do {
int_status = readl(&ioc->chip->HostInterruptStatus);
if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
ioc->name, __func__, count, timeout));
return 0;
}
- if (sleep_flag == CAN_SLEEP)
- usleep_range(1000, 1500);
- else
- udelay(500);
+
+ usleep_range(1000, 1500);
+ count++;
+ } while (--cntdn);
+
+ pr_err(MPT3SAS_FMT
+ "%s: failed due to timeout count(%d), int_status(%x)!\n",
+ ioc->name, __func__, count, int_status);
+ return -EFAULT;
+}
+
+static int
+_base_spin_on_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout)
+{
+ u32 cntdn, count;
+ u32 int_status;
+
+ count = 0;
+ cntdn = 2000 * timeout;
+ do {
+ int_status = readl(&ioc->chip->HostInterruptStatus);
+ if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
+ dhsprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: successful count(%d), timeout(%d)\n",
+ ioc->name, __func__, count, timeout));
+ return 0;
+ }
+
+ udelay(500);
count++;
} while (--cntdn);
"%s: failed due to timeout count(%d), int_status(%x)!\n",
ioc->name, __func__, count, int_status);
return -EFAULT;
+
}
/**
* _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
* @ioc: per adapter object
* @timeout: timeout in second
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*
* doorbell.
*/
static int
-_base_wait_for_doorbell_ack(struct MPT3SAS_ADAPTER *ioc, int timeout,
- int sleep_flag)
+_base_wait_for_doorbell_ack(struct MPT3SAS_ADAPTER *ioc, int timeout)
{
u32 cntdn, count;
u32 int_status;
u32 doorbell;
count = 0;
- cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+ cntdn = 1000 * timeout;
do {
int_status = readl(&ioc->chip->HostInterruptStatus);
if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
} else if (int_status == 0xFFFFFFFF)
goto out;
- if (sleep_flag == CAN_SLEEP)
- usleep_range(1000, 1500);
- else
- udelay(500);
+ usleep_range(1000, 1500);
count++;
} while (--cntdn);
* _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
* @ioc: per adapter object
* @timeout: timeout in second
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*
*/
static int
-_base_wait_for_doorbell_not_used(struct MPT3SAS_ADAPTER *ioc, int timeout,
- int sleep_flag)
+_base_wait_for_doorbell_not_used(struct MPT3SAS_ADAPTER *ioc, int timeout)
{
u32 cntdn, count;
u32 doorbell_reg;
count = 0;
- cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+ cntdn = 1000 * timeout;
do {
doorbell_reg = readl(&ioc->chip->Doorbell);
if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
ioc->name, __func__, count, timeout));
return 0;
}
- if (sleep_flag == CAN_SLEEP)
- usleep_range(1000, 1500);
- else
- udelay(500);
+
+ usleep_range(1000, 1500);
count++;
} while (--cntdn);
* @ioc: per adapter object
* @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
* @timeout: timeout in second
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout,
- int sleep_flag)
+_base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout)
{
u32 ioc_state;
int r = 0;
writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
&ioc->chip->Doorbell);
- if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
+ if ((_base_wait_for_doorbell_ack(ioc, 15))) {
r = -EFAULT;
goto out;
}
- ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
- timeout, sleep_flag);
+ ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, timeout);
if (ioc_state) {
pr_err(MPT3SAS_FMT
"%s: failed going to ready state (ioc_state=0x%x)\n",
* @reply_bytes: reply length
* @reply: pointer to reply payload
* @timeout: timeout in second
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
_base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
- u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
+ u32 *request, int reply_bytes, u16 *reply, int timeout)
{
MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
int i;
u8 failed;
- u16 dummy;
__le32 *mfp;
/* make sure doorbell is not in use */
((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
&ioc->chip->Doorbell);
- if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
+ if ((_base_spin_on_doorbell_int(ioc, 5))) {
pr_err(MPT3SAS_FMT
"doorbell handshake int failed (line=%d)\n",
ioc->name, __LINE__);
}
writel(0, &ioc->chip->HostInterruptStatus);
- if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
+ if ((_base_wait_for_doorbell_ack(ioc, 5))) {
pr_err(MPT3SAS_FMT
"doorbell handshake ack failed (line=%d)\n",
ioc->name, __LINE__);
/* send message 32-bits at a time */
for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
- if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
+ if ((_base_wait_for_doorbell_ack(ioc, 5)))
failed = 1;
}
}
/* now wait for the reply */
- if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
+ if ((_base_wait_for_doorbell_int(ioc, timeout))) {
pr_err(MPT3SAS_FMT
"doorbell handshake int failed (line=%d)\n",
ioc->name, __LINE__);
reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
& MPI2_DOORBELL_DATA_MASK);
writel(0, &ioc->chip->HostInterruptStatus);
- if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+ if ((_base_wait_for_doorbell_int(ioc, 5))) {
pr_err(MPT3SAS_FMT
"doorbell handshake int failed (line=%d)\n",
ioc->name, __LINE__);
writel(0, &ioc->chip->HostInterruptStatus);
for (i = 2; i < default_reply->MsgLength * 2; i++) {
- if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+ if ((_base_wait_for_doorbell_int(ioc, 5))) {
pr_err(MPT3SAS_FMT
"doorbell handshake int failed (line=%d)\n",
ioc->name, __LINE__);
return -EFAULT;
}
if (i >= reply_bytes/2) /* overflow case */
- dummy = readl(&ioc->chip->Doorbell);
+ readl(&ioc->chip->Doorbell);
else
reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
& MPI2_DOORBELL_DATA_MASK);
writel(0, &ioc->chip->HostInterruptStatus);
}
- _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
- if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
+ _base_wait_for_doorbell_int(ioc, 5);
+ if (_base_wait_for_doorbell_not_used(ioc, 5) != 0) {
dhsprintk(ioc, pr_info(MPT3SAS_FMT
"doorbell is in use (line=%d)\n", ioc->name, __LINE__));
}
{
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
bool issue_reset = false;
int rc;
void *request;
ioc->ioc_link_reset_in_progress = 1;
init_completion(&ioc->base_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+ wait_for_completion_timeout(&ioc->base_cmds.done,
msecs_to_jiffies(10000));
if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
ioc->base_cmds.status = MPT3_CMD_NOT_USED;
rc = -EFAULT;
out:
{
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
bool issue_reset = false;
int rc;
void *request;
memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
init_completion(&ioc->base_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+ wait_for_completion_timeout(&ioc->base_cmds.done,
msecs_to_jiffies(10000));
if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
ioc->base_cmds.status = MPT3_CMD_NOT_USED;
rc = -EFAULT;
out:
/**
* _base_get_port_facts - obtain port facts reply and save in ioc
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port, int sleep_flag)
+_base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port)
{
Mpi2PortFactsRequest_t mpi_request;
Mpi2PortFactsReply_t mpi_reply;
mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
mpi_request.PortNumber = port;
r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
- (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
+ (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5);
if (r != 0) {
pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
* _base_wait_for_iocstate - Wait until the card is in READY or OPERATIONAL
* @ioc: per adapter object
* @timeout:
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout,
- int sleep_flag)
+_base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout)
{
u32 ioc_state;
int rc;
goto issue_diag_reset;
}
- ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
- timeout, sleep_flag);
+ ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, timeout);
if (ioc_state) {
dfailprintk(ioc, printk(MPT3SAS_FMT
"%s: failed going to ready state (ioc_state=0x%x)\n",
}
issue_diag_reset:
- rc = _base_diag_reset(ioc, sleep_flag);
+ rc = _base_diag_reset(ioc);
return rc;
}
/**
* _base_get_ioc_facts - obtain ioc facts reply and save in ioc
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2IOCFactsRequest_t mpi_request;
Mpi2IOCFactsReply_t mpi_reply;
dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
- r = _base_wait_for_iocstate(ioc, 10, sleep_flag);
+ r = _base_wait_for_iocstate(ioc, 10);
if (r) {
dfailprintk(ioc, printk(MPT3SAS_FMT
"%s: failed getting to correct state\n",
memset(&mpi_request, 0, mpi_request_sz);
mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
- (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
+ (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5);
if (r != 0) {
pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
/**
* _base_send_ioc_init - send ioc_init to firmware
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2IOCInitRequest_t mpi_request;
Mpi2IOCInitReply_t mpi_reply;
r = _base_handshake_req_reply_wait(ioc,
sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
- sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
- sleep_flag);
+ sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10);
if (r != 0) {
pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
/**
* _base_send_port_enable - send port_enable(discovery stuff) to firmware
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_send_port_enable(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_send_port_enable(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2PortEnableRequest_t *mpi_request;
Mpi2PortEnableReply_t *mpi_reply;
- unsigned long timeleft;
int r = 0;
u16 smid;
u16 ioc_status;
init_completion(&ioc->port_enable_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done,
- 300*HZ);
+ wait_for_completion_timeout(&ioc->port_enable_cmds.done, 300*HZ);
if (!(ioc->port_enable_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
/**
* _base_event_notification - send event notification
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_event_notification(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_event_notification(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2EventNotificationRequest_t *mpi_request;
- unsigned long timeleft;
u16 smid;
int r = 0;
int i;
cpu_to_le32(ioc->event_masks[i]);
init_completion(&ioc->base_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
+ wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
return;
mutex_lock(&ioc->base_cmds.mutex);
- _base_event_notification(ioc, CAN_SLEEP);
+ _base_event_notification(ioc);
mutex_unlock(&ioc->base_cmds.mutex);
}
/**
* _base_diag_reset - the "big hammer" start of day reset
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_diag_reset(struct MPT3SAS_ADAPTER *ioc)
{
u32 host_diagnostic;
u32 ioc_state;
writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
/* wait 100 msec */
- if (sleep_flag == CAN_SLEEP)
- msleep(100);
- else
- mdelay(100);
+ msleep(100);
if (count++ > 20)
goto out;
&ioc->chip->HostDiagnostic);
/*This delay allows the chip PCIe hardware time to finish reset tasks*/
- if (sleep_flag == CAN_SLEEP)
- msleep(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000);
- else
- mdelay(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000);
+ msleep(MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC/1000);
/* Approximately 300 second max wait */
for (count = 0; count < (300000000 /
if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
break;
- /* Wait to pass the second read delay window */
- if (sleep_flag == CAN_SLEEP)
- msleep(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC
- / 1000);
- else
- mdelay(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC
- / 1000);
+ msleep(MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC / 1000);
}
if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
drsprintk(ioc, pr_info(MPT3SAS_FMT
"Wait for FW to go to the READY state\n", ioc->name));
- ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
- sleep_flag);
+ ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20);
if (ioc_state) {
pr_err(MPT3SAS_FMT
"%s: failed going to ready state (ioc_state=0x%x)\n",
/**
* _base_make_ioc_ready - put controller in READY state
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
* @type: FORCE_BIG_HAMMER or SOFT_RESET
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_make_ioc_ready(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
- enum reset_type type)
+_base_make_ioc_ready(struct MPT3SAS_ADAPTER *ioc, enum reset_type type)
{
u32 ioc_state;
int rc;
ioc->name, __func__, ioc_state);
return -EFAULT;
}
- if (sleep_flag == CAN_SLEEP)
- ssleep(1);
- else
- mdelay(1000);
+ ssleep(1);
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
}
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
if (!(_base_send_ioc_reset(ioc,
- MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
+ MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15))) {
return 0;
}
issue_diag_reset:
- rc = _base_diag_reset(ioc, CAN_SLEEP);
+ rc = _base_diag_reset(ioc);
return rc;
}
/**
* _base_make_ioc_operational - put controller in OPERATIONAL state
* @ioc: per adapter object
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* Returns 0 for success, non-zero for failure.
*/
static int
-_base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc)
{
int r, i, index;
unsigned long flags;
}
skip_init_reply_post_free_queue:
- r = _base_send_ioc_init(ioc, sleep_flag);
+ r = _base_send_ioc_init(ioc);
if (r)
return r;
skip_init_reply_post_host_index:
_base_unmask_interrupts(ioc);
- r = _base_event_notification(ioc, sleep_flag);
+ r = _base_event_notification(ioc);
if (r)
return r;
- if (sleep_flag == CAN_SLEEP)
- _base_static_config_pages(ioc);
-
+ _base_static_config_pages(ioc);
if (ioc->is_driver_loading) {
return r; /* scan_start and scan_finished support */
}
- r = _base_send_port_enable(ioc, sleep_flag);
+ r = _base_send_port_enable(ioc);
if (r)
return r;
if (ioc->chip_phys && ioc->chip) {
_base_mask_interrupts(ioc);
ioc->shost_recovery = 1;
- _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
+ _base_make_ioc_ready(ioc, SOFT_RESET);
ioc->shost_recovery = 0;
}
goto out_free_resources;
pci_set_drvdata(ioc->pdev, ioc->shost);
- r = _base_get_ioc_facts(ioc, CAN_SLEEP);
+ r = _base_get_ioc_facts(ioc);
if (r)
goto out_free_resources;
ioc->build_sg_mpi = &_base_build_sg;
ioc->build_zero_len_sge_mpi = &_base_build_zero_len_sge;
- r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
+ r = _base_make_ioc_ready(ioc, SOFT_RESET);
if (r)
goto out_free_resources;
}
for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
- r = _base_get_port_facts(ioc, i, CAN_SLEEP);
+ r = _base_get_port_facts(ioc, i);
if (r)
goto out_free_resources;
}
- r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
+ r = _base_allocate_memory_pools(ioc);
if (r)
goto out_free_resources;
if (ioc->hba_mpi_version_belonged == MPI26_VERSION)
_base_unmask_events(ioc, MPI2_EVENT_ACTIVE_CABLE_EXCEPTION);
- r = _base_make_ioc_operational(ioc, CAN_SLEEP);
+ r = _base_make_ioc_operational(ioc);
if (r)
goto out_free_resources;
/**
* _wait_for_commands_to_complete - reset controller
* @ioc: Pointer to MPT_ADAPTER structure
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
*
* This function waiting(3s) for all pending commands to complete
* prior to putting controller in reset.
*/
static void
-_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc)
{
u32 ioc_state;
unsigned long flags;
u16 i;
ioc->pending_io_count = 0;
- if (sleep_flag != CAN_SLEEP)
- return;
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
/**
* mpt3sas_base_hard_reset_handler - reset controller
* @ioc: Pointer to MPT_ADAPTER structure
- * @sleep_flag: CAN_SLEEP or NO_SLEEP
* @type: FORCE_BIG_HAMMER or SOFT_RESET
*
* Returns 0 for success, non-zero for failure.
*/
int
-mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
+mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
enum reset_type type)
{
int r;
if (mpt3sas_fwfault_debug)
mpt3sas_halt_firmware(ioc);
- /* TODO - What we really should be doing is pulling
- * out all the code associated with NO_SLEEP; its never used.
- * That is legacy code from mpt fusion driver, ported over.
- * I will leave this BUG_ON here for now till its been resolved.
- */
- BUG_ON(sleep_flag == NO_SLEEP);
-
/* wait for an active reset in progress to complete */
if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
do {
is_fault = 1;
}
_base_reset_handler(ioc, MPT3_IOC_PRE_RESET);
- _wait_for_commands_to_complete(ioc, sleep_flag);
+ _wait_for_commands_to_complete(ioc);
_base_mask_interrupts(ioc);
- r = _base_make_ioc_ready(ioc, sleep_flag, type);
+ r = _base_make_ioc_ready(ioc, type);
if (r)
goto out;
_base_reset_handler(ioc, MPT3_IOC_AFTER_RESET);
r = -EFAULT;
goto out;
}
- r = _base_get_ioc_facts(ioc, CAN_SLEEP);
+ r = _base_get_ioc_facts(ioc);
if (r)
goto out;
"Please reboot the system and ensure that the correct"
" firmware version is running\n", ioc->name);
- r = _base_make_ioc_operational(ioc, sleep_flag);
+ r = _base_make_ioc_operational(ioc);
if (!r)
_base_reset_handler(ioc, MPT3_IOC_DONE_RESET);
#define MPT_MAX_CALLBACKS 32
-
-#define CAN_SLEEP 1
-#define NO_SLEEP 0
-
#define INTERNAL_CMDS_COUNT 10 /* reserved cmds */
/* reserved for issuing internally framed scsi io cmds */
#define INTERNAL_SCSIIO_CMDS_COUNT 3
u8 pfa_led_on;
u8 pend_sas_rphy_add;
u8 enclosure_level;
- u8 connector_name[4];
+ u8 connector_name[5];
struct kref refcount;
};
dma_addr_t reply_post_free_dma;
};
-/**
- * enum mutex_type - task management mutex type
- * @TM_MUTEX_OFF: mutex is not required becuase calling function is acquiring it
- * @TM_MUTEX_ON: mutex is required
- */
-enum mutex_type {
- TM_MUTEX_OFF = 0,
- TM_MUTEX_ON = 1,
-};
-
typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
/**
* struct MPT3SAS_ADAPTER - per adapter struct
void mpt3sas_base_detach(struct MPT3SAS_ADAPTER *ioc);
int mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc);
void mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc);
-int mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
+int mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
enum reset_type type);
void *mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid);
int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
uint channel, uint id, uint lun, u8 type, u16 smid_task,
- ulong timeout, enum mutex_type m_type);
+ ulong timeout);
+int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+ uint channel, uint id, uint lun, u8 type, u16 smid_task,
+ ulong timeout);
+
void mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
void mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
void mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
{
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
Mpi2ConfigRequest_t *config_request;
int r;
u8 retry_count, issue_host_reset = 0;
_config_display_some_debug(ioc, smid, "config_request", NULL);
init_completion(&ioc->config_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->config_cmds.done,
- timeout*HZ);
+ wait_for_completion_timeout(&ioc->config_cmds.done, timeout*HZ);
if (!(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
mutex_unlock(&ioc->config_cmds.mutex);
if (issue_host_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return r;
}
*
* Called when application request fasyn callback handler.
*/
-int
+static int
_ctl_fasync(int fd, struct file *filep, int mode)
{
return fasync_helper(fd, filep, mode, &async_queue);
* @wait -
*
*/
-unsigned int
+static unsigned int
_ctl_poll(struct file *filep, poll_table *wait)
{
struct MPT3SAS_ADAPTER *ioc;
MPI2RequestHeader_t *mpi_request = NULL, *request;
MPI2DefaultReply_t *mpi_reply;
u32 ioc_state;
- u16 ioc_status;
u16 smid;
- unsigned long timeout, timeleft;
+ unsigned long timeout;
u8 issue_reset;
u32 sz;
void *psge;
timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
else
timeout = karg.timeout;
- timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
- timeout*HZ);
+ wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
Mpi2SCSITaskManagementRequest_t *tm_request =
(Mpi2SCSITaskManagementRequest_t *)mpi_request;
}
mpi_reply = ioc->ctl_cmds.reply;
- ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
(ioc->logging_level & MPT_DEBUG_TM)) {
ioc->name,
le16_to_cpu(mpi_request->FunctionDependent1));
mpt3sas_halt_firmware(ioc);
- mpt3sas_scsih_issue_tm(ioc,
+ mpt3sas_scsih_issue_locked_tm(ioc,
le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
- 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30,
- TM_MUTEX_ON);
+ 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
} else
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
}
out:
dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
__func__));
- retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
pr_info(MPT3SAS_FMT "host reset: %s\n",
ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
return 0;
Mpi2DiagBufferPostRequest_t *mpi_request;
Mpi2DiagBufferPostReply_t *mpi_reply;
u8 buffer_type;
- unsigned long timeleft;
u16 smid;
u16 ioc_status;
u32 ioc_state;
init_completion(&ioc->ctl_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+ wait_for_completion_timeout(&ioc->ctl_cmds.done,
MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
out:
u16 ioc_status;
u32 ioc_state;
int rc;
- unsigned long timeleft;
dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
init_completion(&ioc->ctl_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+ wait_for_completion_timeout(&ioc->ctl_cmds.done,
MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return rc;
}
Mpi2DiagBufferPostReply_t *mpi_reply;
int rc, i;
u8 buffer_type;
- unsigned long timeleft, request_size, copy_size;
+ unsigned long request_size, copy_size;
u16 smid;
u16 ioc_status;
u8 issue_reset = 0;
init_completion(&ioc->ctl_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+ wait_for_completion_timeout(&ioc->ctl_cmds.done,
MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
out:
* @cmd - ioctl opcode
* @arg -
*/
-long
+static long
_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;
* @cmd - ioctl opcode
* @arg -
*/
-long
+static long
_ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;
*
* This routine handles 32 bit applications in 64bit os.
*/
-long
+static long
_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
{
long ret;
*
* This routine handles 32 bit applications in 64bit os.
*/
-long
+static long
_ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
{
long ret;
*
* Returns queue depth.
*/
-int
+static int
scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
-int
+static int
scsih_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
*
* Returns nothing.
*/
-void
+static void
scsih_target_destroy(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct _sas_device *sas_device;
struct _raid_device *raid_device;
unsigned long flags;
- struct sas_rphy *rphy;
sas_target_priv_data = starget->hostdata;
if (!sas_target_priv_data)
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- rphy = dev_to_rphy(starget->dev.parent);
sas_device = __mpt3sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
-int
+static int
scsih_slave_alloc(struct scsi_device *sdev)
{
struct Scsi_Host *shost;
*
* Returns nothing.
*/
-void
+static void
scsih_slave_destroy(struct scsi_device *sdev)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
* scsih_is_raid - return boolean indicating device is raid volume
* @dev the device struct object
*/
-int
+static int
scsih_is_raid(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
* scsih_get_resync - get raid volume resync percent complete
* @dev the device struct object
*/
-void
+static void
scsih_get_resync(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
* scsih_get_state - get raid volume level
* @dev the device struct object
*/
-void
+static void
scsih_get_state(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
* Returns 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
-int
+static int
scsih_slave_configure(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
*
* Return nothing.
*/
-int
+static int
scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int params[])
{
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
* @timeout: timeout in seconds
- * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
* Context: user
*
* A generic API for sending task management requests to firmware.
*/
int
mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
- uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
- enum mutex_type m_type)
+ uint id, uint lun, u8 type, u16 smid_task, ulong timeout)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
u16 smid = 0;
u32 ioc_state;
- unsigned long timeleft;
struct scsiio_tracker *scsi_lookup = NULL;
int rc;
u16 msix_task = 0;
- if (m_type == TM_MUTEX_ON)
- mutex_lock(&ioc->tm_cmds.mutex);
+ lockdep_assert_held(&ioc->tm_cmds.mutex);
+
if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n",
__func__, ioc->name);
- rc = FAILED;
- goto err_out;
+ return FAILED;
}
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery) {
pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
- rc = FAILED;
- goto err_out;
+ return FAILED;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
dhsprintk(ioc, pr_info(MPT3SAS_FMT
"unexpected doorbell active!\n", ioc->name));
- rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
- rc = (!rc) ? SUCCESS : FAILED;
- goto err_out;
+ rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
+ return (!rc) ? SUCCESS : FAILED;
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt3sas_base_fault_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
- rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
- rc = (!rc) ? SUCCESS : FAILED;
- goto err_out;
+ rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
+ return (!rc) ? SUCCESS : FAILED;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
if (!smid) {
pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
ioc->name, __func__);
- rc = FAILED;
- goto err_out;
+ return FAILED;
}
if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
else
msix_task = 0;
mpt3sas_base_put_smid_hi_priority(ioc, smid, msix_task);
- timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
+ wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
ioc->name, __func__);
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) {
- rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ rc = mpt3sas_base_hard_reset_handler(ioc,
+ FORCE_BIG_HAMMER);
rc = (!rc) ? SUCCESS : FAILED;
- ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
- mpt3sas_scsih_clear_tm_flag(ioc, handle);
- goto err_out;
+ goto out;
}
}
break;
}
+out:
mpt3sas_scsih_clear_tm_flag(ioc, handle);
ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
- if (m_type == TM_MUTEX_ON)
- mutex_unlock(&ioc->tm_cmds.mutex);
-
return rc;
+}
- err_out:
- if (m_type == TM_MUTEX_ON)
- mutex_unlock(&ioc->tm_cmds.mutex);
- return rc;
+int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+ uint channel, uint id, uint lun, u8 type, u16 smid_task, ulong timeout)
+{
+ int ret;
+
+ mutex_lock(&ioc->tm_cmds.mutex);
+ ret = mpt3sas_scsih_issue_tm(ioc, handle, channel, id, lun, type,
+ smid_task, timeout);
+ mutex_unlock(&ioc->tm_cmds.mutex);
+
+ return ret;
}
/**
*
* Returns SUCCESS if command aborted else FAILED
*/
-int
+static int
scsih_abort(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
mpt3sas_halt_firmware(ioc);
handle = sas_device_priv_data->sas_target->handle;
- r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
+ r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
scmd->device->id, scmd->device->lun,
- MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, TM_MUTEX_ON);
+ MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
out:
sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
*
* Returns SUCCESS if command aborted else FAILED
*/
-int
+static int
scsih_dev_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
goto out;
}
- r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
+ r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
scmd->device->id, scmd->device->lun,
- MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, TM_MUTEX_ON);
+ MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30);
out:
sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
*
* Returns SUCCESS if command aborted else FAILED
*/
-int
+static int
scsih_target_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
goto out;
}
- r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
+ r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
- 30, TM_MUTEX_ON);
+ 30);
out:
starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
*
* Returns SUCCESS if command aborted else FAILED
*/
-int
+static int
scsih_host_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
goto out;
}
- retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
r = (retval < 0) ? FAILED : SUCCESS;
out:
pr_info(MPT3SAS_FMT "host reset: %s scmd(%p)\n",
*
* Context - processed in interrupt context.
*/
-void
+static void
_scsih_issue_delayed_event_ack(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 event,
u32 event_context)
{
*
* Context - processed in interrupt context.
*/
-void
+static void
_scsih_issue_delayed_sas_io_unit_ctrl(struct MPT3SAS_ADAPTER *ioc,
u16 smid, u16 handle)
{
* SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
* SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
*/
-int
+static int
scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
le16_to_cpu(mpi_reply->DevHandle));
mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
- if (!(ioc->logging_level & MPT_DEBUG_REPLY) &&
+ if ((ioc->logging_level & MPT_DEBUG_REPLY) &&
((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
(scmd->sense_buffer[2] == MEDIUM_ERROR) ||
(scmd->sense_buffer[2] == HARDWARE_ERROR)))
MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
le16_to_cpu(sas_device_pg0.EnclosureLevel);
- memcpy(&sas_device->connector_name[0],
- &sas_device_pg0.ConnectorName[0], 4);
+ memcpy(sas_device->connector_name,
+ sas_device_pg0.ConnectorName, 4);
+ sas_device->connector_name[4] = '\0';
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
if (sas_device_pg0.Flags & MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
le16_to_cpu(sas_device_pg0.EnclosureLevel);
- memcpy(&sas_device->connector_name[0],
- &sas_device_pg0.ConnectorName[0], 4);
+ memcpy(sas_device->connector_name,
+ sas_device_pg0.ConnectorName, 4);
+ sas_device->connector_name[4] = '\0';
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
- MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30,
- TM_MUTEX_OFF);
+ MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
if (r == FAILED) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: FAILED when sending "
goto out_no_lock;
r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
- sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
- TM_MUTEX_OFF);
+ sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid,
+ 30);
if (r == FAILED) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
mutex_unlock(&ioc->scsih_cmds.mutex);
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return rc;
}
static void
_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
{
- int rc;
sdev->no_uld_attach = no_uld_attach ? 1 : 0;
sdev_printk(KERN_INFO, sdev, "%s raid component\n",
sdev->no_uld_attach ? "hidding" : "exposing");
- rc = scsi_device_reprobe(sdev);
+ WARN_ON(scsi_device_reprobe(sdev));
}
/**
* Routine called when unloading the driver.
* Return nothing.
*/
-void scsih_remove(struct pci_dev *pdev)
+static void scsih_remove(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
*
* Return nothing.
*/
-void
+static void
scsih_shutdown(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
* of scanning the entire bus. In our implemention, we will kick off
* firmware discovery.
*/
-void
+static void
scsih_scan_start(struct Scsi_Host *shost)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
* scsi_host and the elapsed time of the scan in jiffies. In our implemention,
* we wait for firmware discovery to complete, then return 1.
*/
-int
+static int
scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
* MPI25_VERSION for SAS 3.0 HBA devices, and
* MPI26 VERSION for Cutlass & Invader SAS 3.0 HBA devices
*/
-u16
+static u16
_scsih_determine_hba_mpi_version(struct pci_dev *pdev)
{
*
* Returns 0 success, anything else error.
*/
-int
+static int
_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT3SAS_ADAPTER *ioc;
*
* Returns 0 success, anything else error.
*/
-int
+static int
scsih_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
*
* Returns 0 success, anything else error.
*/
-int
+static int
scsih_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
if (r)
return r;
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
+ mpt3sas_base_hard_reset_handler(ioc, SOFT_RESET);
scsi_unblock_requests(shost);
mpt3sas_base_start_watchdog(ioc);
return 0;
* Return value:
* PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
*/
-pci_ers_result_t
+static pci_ers_result_t
scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
* code after the PCI slot has been reset, just before we
* should resume normal operations.
*/
-pci_ers_result_t
+static pci_ers_result_t
scsih_pci_slot_reset(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
if (rc)
return PCI_ERS_RESULT_DISCONNECT;
- rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name,
(rc == 0) ? "success" : "failed");
* OK to resume normal operation. Use completion to allow
* halted scsi ops to resume.
*/
-void
+static void
scsih_pci_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
* scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
* @pdev: pointer to PCI device
*/
-pci_ers_result_t
+static pci_ers_result_t
scsih_pci_mmio_enabled(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
*
* Returns 0 success, anything else error.
*/
-int
+static int
scsih_init(void)
{
mpt2_ids = 0;
*
* Returns 0 success, anything else error.
*/
-void
+static void
scsih_exit(void)
{
int rc;
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
void *psge;
u8 issue_reset = 0;
void *data_out = NULL;
ioc->name, (unsigned long long)sas_address));
init_completion(&ioc->transport_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
- 10*HZ);
+ wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
out:
ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
if (data_out)
int rc;
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
void *psge;
u8 issue_reset = 0;
void *data_out = NULL;
phy->number));
init_completion(&ioc->transport_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
- 10*HZ);
+ wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
out:
ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
if (data_out)
int rc;
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
void *psge;
u8 issue_reset = 0;
void *data_out = NULL;
phy->number, phy_operation));
init_completion(&ioc->transport_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
- 10*HZ);
+ wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s: timeout\n",
issue_host_reset:
if (issue_reset)
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
out:
ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
if (data_out)
int rc;
u16 smid;
u32 ioc_state;
- unsigned long timeleft;
void *psge;
u8 issue_reset = 0;
dma_addr_t dma_addr_in = 0;
init_completion(&ioc->transport_cmds.done);
mpt3sas_base_put_smid_default(ioc, smid);
- timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
- 10*HZ);
+ wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
pr_err(MPT3SAS_FMT "%s : timeout\n",
issue_host_reset:
if (issue_reset) {
- mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
+ mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
rc = -ETIMEDOUT;
}
}
}
-void mvs_64xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
+static void
+mvs_64xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
{
void __iomem *regs = mvi->regs;
u32 tmp;
return MVS_ID_NOT_MAPPED;
}
-void mvs_64xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
+static void mvs_64xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
{
int i;
struct scatterlist *sg;
mvs_write_port_vsr_data(mvi, i, tmp);
}
-void mvs_64xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
+static void mvs_64xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
struct sas_phy_linkrates *rates)
{
u32 lrmin = 0, lrmax = 0;
}
-u32 mvs_64xx_spi_read_data(struct mvs_info *mvi)
+static u32 mvs_64xx_spi_read_data(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
return ior32(SPI_DATA_REG_64XX);
}
-void mvs_64xx_spi_write_data(struct mvs_info *mvi, u32 data)
+static void mvs_64xx_spi_write_data(struct mvs_info *mvi, u32 data)
{
void __iomem *regs = mvi->regs_ex;
iow32(SPI_DATA_REG_64XX, data);
}
-int mvs_64xx_spi_buildcmd(struct mvs_info *mvi,
+static int mvs_64xx_spi_buildcmd(struct mvs_info *mvi,
u32 *dwCmd,
u8 cmd,
u8 read,
}
-int mvs_64xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
+static int mvs_64xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
{
void __iomem *regs = mvi->regs_ex;
int retry;
return 0;
}
-int mvs_64xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
+static int mvs_64xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
{
void __iomem *regs = mvi->regs_ex;
u32 i, dwTmp;
return -1;
}
-void mvs_64xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
+static void mvs_64xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
int buf_len, int from, void *prd)
{
int i;
}
}
-void set_phy_tuning(struct mvs_info *mvi, int phy_id,
- struct phy_tuning phy_tuning)
+static void set_phy_tuning(struct mvs_info *mvi, int phy_id,
+ struct phy_tuning phy_tuning)
{
u32 tmp, setting_0 = 0, setting_1 = 0;
u8 i;
}
}
-void set_phy_ffe_tuning(struct mvs_info *mvi, int phy_id,
- struct ffe_control ffe)
+static void set_phy_ffe_tuning(struct mvs_info *mvi, int phy_id,
+ struct ffe_control ffe)
{
u32 tmp;
}
/*Notice: this function must be called when phy is disabled*/
-void set_phy_rate(struct mvs_info *mvi, int phy_id, u8 rate)
+static void set_phy_rate(struct mvs_info *mvi, int phy_id, u8 rate)
{
union reg_phy_cfg phy_cfg, phy_cfg_tmp;
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
}
}
-void mvs_94xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
+static void
+mvs_94xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
{
void __iomem *regs = mvi->regs;
u32 tmp;
}
-void mvs_94xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
- struct sas_phy_linkrates *rates)
+static void mvs_94xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
+ struct sas_phy_linkrates *rates)
{
u32 lrmax = 0;
u32 tmp;
}
-u32 mvs_94xx_spi_read_data(struct mvs_info *mvi)
+static u32 mvs_94xx_spi_read_data(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
return mr32(SPI_RD_DATA_REG_94XX);
}
-void mvs_94xx_spi_write_data(struct mvs_info *mvi, u32 data)
+static void mvs_94xx_spi_write_data(struct mvs_info *mvi, u32 data)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(SPI_RD_DATA_REG_94XX, data);
}
-int mvs_94xx_spi_buildcmd(struct mvs_info *mvi,
- u32 *dwCmd,
- u8 cmd,
- u8 read,
- u8 length,
- u32 addr
+static int mvs_94xx_spi_buildcmd(struct mvs_info *mvi,
+ u32 *dwCmd,
+ u8 cmd,
+ u8 read,
+ u8 length,
+ u32 addr
)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
}
-int mvs_94xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
+static int mvs_94xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(SPI_CTRL_REG_94XX, cmd | SPI_CTRL_SpiStart_94XX);
return 0;
}
-int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
+static int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 i, dwTmp;
return -1;
}
-void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
- int buf_len, int from, void *prd)
+static void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
+ int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
mvs_tag_clear(mvi, i);
}
-struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev)
+static struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev)
{
unsigned long i = 0, j = 0, hi = 0;
struct sas_ha_struct *sha = dev->port->ha;
}
-int mvs_find_dev_phyno(struct domain_device *dev, int *phyno)
+static int mvs_find_dev_phyno(struct domain_device *dev, int *phyno)
{
unsigned long i = 0, j = 0, n = 0, num = 0;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
mvs_port_notify_deformed(sas_phy, 1);
}
-struct mvs_device *mvs_alloc_dev(struct mvs_info *mvi)
+static struct mvs_device *mvs_alloc_dev(struct mvs_info *mvi)
{
u32 dev;
for (dev = 0; dev < MVS_MAX_DEVICES; dev++) {
return NULL;
}
-void mvs_free_dev(struct mvs_device *mvi_dev)
+static void mvs_free_dev(struct mvs_device *mvi_dev)
{
u32 id = mvi_dev->device_id;
memset(mvi_dev, 0, sizeof(*mvi_dev));
mvi_dev->taskfileset = MVS_ID_NOT_MAPPED;
}
-int mvs_dev_found_notify(struct domain_device *dev, int lock)
+static int mvs_dev_found_notify(struct domain_device *dev, int lock)
{
unsigned long flags = 0;
int res = 0;
return mvs_dev_found_notify(dev, 1);
}
-void mvs_dev_gone_notify(struct domain_device *dev)
+static void mvs_dev_gone_notify(struct domain_device *dev)
{
unsigned long flags = 0;
struct mvs_device *mvi_dev = dev->lldd_dev;
return stat;
}
-void mvs_set_sense(u8 *buffer, int len, int d_sense,
+static void mvs_set_sense(u8 *buffer, int len, int d_sense,
int key, int asc, int ascq)
{
memset(buffer, 0, len);
return;
}
-void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu,
+static void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu,
u8 key, u8 asc, u8 asc_q)
{
iu->datapres = 2;
+++ /dev/null
-/*
- * This driver adapted from Drew Eckhardt's Trantor T128 driver
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * ( Based on T128 - DISTRIBUTION RELEASE 3. )
- *
- * Modified to work with the Pro Audio Spectrum/Studio 16
- * by John Weidman.
- *
- *
- * For more information, please consult
- *
- * Media Vision
- * (510) 770-8600
- * (800) 348-7116
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - There are many different models of
- * the Pro Audio Spectrum/Studio 16, and I only have one of
- * them, so this may require a little tweaking. An interrupt
- * is triggered to autoprobe for the interrupt line. Note:
- * with the newer model boards, the interrupt is set via
- * software after reset using the default_irq for the
- * current board number.
- *
- * 2. With command line overrides - pas16=port,irq may be
- * used on the LILO command line to override the defaults.
- *
- * 3. With the PAS16_OVERRIDE compile time define. This is
- * specified as an array of address, irq tuples. Ie, for
- * one board at the default 0x388 address, IRQ10, I could say
- * -DPAS16_OVERRIDE={{0x388, 10}}
- * NOTE: Untested.
- *
- * 4. When included as a module, with arguments passed on the command line:
- * pas16_irq=xx the interrupt
- * pas16_addr=xx the port
- * e.g. "modprobe pas16 pas16_addr=0x388 pas16_irq=5"
- *
- * Note that if the override methods are used, place holders must
- * be specified for other boards in the system.
- *
- *
- * Configuration notes :
- * The current driver does not support interrupt sharing with the
- * sound portion of the card. If you use the same irq for the
- * scsi port and sound you will have problems. Either use
- * a different irq for the scsi port or don't use interrupts
- * for the scsi port.
- *
- * If you have problems with your card not being recognized, use
- * the LILO command line override. Try to get it recognized without
- * interrupts. Ie, for a board at the default 0x388 base port,
- * boot: linux pas16=0x388,0
- *
- * NO_IRQ (0) should be specified for no interrupt,
- * IRQ_AUTO (254) to autoprobe for an IRQ line if overridden
- * on the command line.
- */
-
-#include <linux/module.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <scsi/scsi_host.h>
-#include "pas16.h"
-#include "NCR5380.h"
-
-
-static unsigned short pas16_addr;
-static int pas16_irq;
-
-
-static const int scsi_irq_translate[] =
- { 0, 0, 1, 2, 3, 4, 5, 6, 0, 0, 7, 8, 9, 0, 10, 11 };
-
-/* The default_irqs array contains values used to set the irq into the
- * board via software (as must be done on newer model boards without
- * irq jumpers on the board). The first value in the array will be
- * assigned to logical board 0, the next to board 1, etc.
- */
-static int default_irqs[] __initdata =
- { PAS16_DEFAULT_BOARD_1_IRQ,
- PAS16_DEFAULT_BOARD_2_IRQ,
- PAS16_DEFAULT_BOARD_3_IRQ,
- PAS16_DEFAULT_BOARD_4_IRQ
- };
-
-static struct override {
- unsigned short io_port;
- int irq;
-} overrides
-#ifdef PAS16_OVERRIDE
- [] __initdata = PAS16_OVERRIDE;
-#else
- [4] __initdata = {{0,IRQ_AUTO}, {0,IRQ_AUTO}, {0,IRQ_AUTO},
- {0,IRQ_AUTO}};
-#endif
-
-#define NO_OVERRIDES ARRAY_SIZE(overrides)
-
-static struct base {
- unsigned short io_port;
- int noauto;
-} bases[] __initdata =
- { {PAS16_DEFAULT_BASE_1, 0},
- {PAS16_DEFAULT_BASE_2, 0},
- {PAS16_DEFAULT_BASE_3, 0},
- {PAS16_DEFAULT_BASE_4, 0}
- };
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static const unsigned short pas16_offset[ 8 ] =
- {
- 0x1c00, /* OUTPUT_DATA_REG */
- 0x1c01, /* INITIATOR_COMMAND_REG */
- 0x1c02, /* MODE_REG */
- 0x1c03, /* TARGET_COMMAND_REG */
- 0x3c00, /* STATUS_REG ro, SELECT_ENABLE_REG wo */
- 0x3c01, /* BUS_AND_STATUS_REG ro, START_DMA_SEND_REG wo */
- 0x3c02, /* INPUT_DATA_REGISTER ro, (N/A on PAS16 ?)
- * START_DMA_TARGET_RECEIVE_REG wo
- */
- 0x3c03, /* RESET_PARITY_INTERRUPT_REG ro,
- * START_DMA_INITIATOR_RECEIVE_REG wo
- */
- };
-
-
-/*
- * Function : enable_board( int board_num, unsigned short port )
- *
- * Purpose : set address in new model board
- *
- * Inputs : board_num - logical board number 0-3, port - base address
- *
- */
-
-static void __init
- enable_board( int board_num, unsigned short port )
-{
- outb( 0xbc + board_num, MASTER_ADDRESS_PTR );
- outb( port >> 2, MASTER_ADDRESS_PTR );
-}
-
-
-
-/*
- * Function : init_board( unsigned short port, int irq )
- *
- * Purpose : Set the board up to handle the SCSI interface
- *
- * Inputs : port - base address of the board,
- * irq - irq to assign to the SCSI port
- * force_irq - set it even if it conflicts with sound driver
- *
- */
-
-static void __init
- init_board( unsigned short io_port, int irq, int force_irq )
-{
- unsigned int tmp;
- unsigned int pas_irq_code;
-
- /* Initialize the SCSI part of the board */
-
- outb( 0x30, io_port + P_TIMEOUT_COUNTER_REG ); /* Timeout counter */
- outb( 0x01, io_port + P_TIMEOUT_STATUS_REG_OFFSET ); /* Reset TC */
- outb( 0x01, io_port + WAIT_STATE ); /* 1 Wait state */
-
- inb(io_port + pas16_offset[RESET_PARITY_INTERRUPT_REG]);
-
- /* Set the SCSI interrupt pointer without mucking up the sound
- * interrupt pointer in the same byte.
- */
- pas_irq_code = ( irq < 16 ) ? scsi_irq_translate[irq] : 0;
- tmp = inb( io_port + IO_CONFIG_3 );
-
- if( (( tmp & 0x0f ) == pas_irq_code) && pas_irq_code > 0
- && !force_irq )
- {
- printk( "pas16: WARNING: Can't use same irq as sound "
- "driver -- interrupts disabled\n" );
- /* Set up the drive parameters, disable 5380 interrupts */
- outb( 0x4d, io_port + SYS_CONFIG_4 );
- }
- else
- {
- tmp = ( tmp & 0x0f ) | ( pas_irq_code << 4 );
- outb( tmp, io_port + IO_CONFIG_3 );
-
- /* Set up the drive parameters and enable 5380 interrupts */
- outb( 0x6d, io_port + SYS_CONFIG_4 );
- }
-}
-
-
-/*
- * Function : pas16_hw_detect( unsigned short board_num )
- *
- * Purpose : determine if a pas16 board is present
- *
- * Inputs : board_num - logical board number ( 0 - 3 )
- *
- * Returns : 0 if board not found, 1 if found.
- */
-
-static int __init
- pas16_hw_detect( unsigned short board_num )
-{
- unsigned char board_rev, tmp;
- unsigned short io_port = bases[ board_num ].io_port;
-
- /* See if we can find a PAS16 board at the address associated
- * with this logical board number.
- */
-
- /* First, attempt to take a newer model board out of reset and
- * give it a base address. This shouldn't affect older boards.
- */
- enable_board( board_num, io_port );
-
- /* Now see if it looks like a PAS16 board */
- board_rev = inb( io_port + PCB_CONFIG );
-
- if( board_rev == 0xff )
- return 0;
-
- tmp = board_rev ^ 0xe0;
-
- outb( tmp, io_port + PCB_CONFIG );
- tmp = inb( io_port + PCB_CONFIG );
- outb( board_rev, io_port + PCB_CONFIG );
-
- if( board_rev != tmp ) /* Not a PAS-16 */
- return 0;
-
- if( ( inb( io_port + OPERATION_MODE_1 ) & 0x03 ) != 0x03 )
- return 0; /* return if no SCSI interface found */
-
- /* Mediavision has some new model boards that return ID bits
- * that indicate a SCSI interface, but they're not (LMS). We'll
- * put in an additional test to try to weed them out.
- */
-
- outb(0x01, io_port + WAIT_STATE); /* 1 Wait state */
- outb(0x20, io_port + pas16_offset[MODE_REG]); /* Is it really SCSI? */
- if (inb(io_port + pas16_offset[MODE_REG]) != 0x20) /* Write to a reg. */
- return 0; /* and try to read */
- outb(0x00, io_port + pas16_offset[MODE_REG]); /* it back. */
- if (inb(io_port + pas16_offset[MODE_REG]) != 0x00)
- return 0;
-
- return 1;
-}
-
-
-#ifndef MODULE
-/*
- * Function : pas16_setup(char *str, int *ints)
- *
- * Purpose : LILO command line initialization of the overrides array,
- *
- * Inputs : str - unused, ints - array of integer parameters with ints[0]
- * equal to the number of ints.
- *
- */
-
-static int __init pas16_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("pas16_setup : usage pas16=io_port,irq\n");
- else
- if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].io_port = (unsigned short) ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].io_port == (unsigned short) ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("pas16=", pas16_setup);
-#endif
-
-/*
- * Function : int pas16_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes PAS16 controllers
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
- */
-
-static int __init pas16_detect(struct scsi_host_template *tpnt)
-{
- static int current_override;
- static unsigned short current_base;
- struct Scsi_Host *instance;
- unsigned short io_port;
- int count;
-
- if (pas16_addr != 0) {
- overrides[0].io_port = pas16_addr;
- /*
- * This is how we avoid seeing more than
- * one host adapter at the same I/O port.
- * Cribbed shamelessly from pas16_setup().
- */
- for (count = 0; count < NO_BASES; ++count)
- if (bases[count].io_port == pas16_addr) {
- bases[count].noauto = 1;
- break;
- }
- }
- if (pas16_irq != 0)
- overrides[0].irq = pas16_irq;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- io_port = 0;
-
- if (overrides[current_override].io_port)
- {
- io_port = overrides[current_override].io_port;
- enable_board( current_override, io_port );
- init_board( io_port, overrides[current_override].irq, 1 );
- }
- else
- for (; !io_port && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "pas16: probing io_port 0x%04x\n",
- (unsigned int)bases[current_base].io_port);
- if ( !bases[current_base].noauto &&
- pas16_hw_detect( current_base ) ){
- io_port = bases[current_base].io_port;
- init_board( io_port, default_irqs[ current_base ], 0 );
- dprintk(NDEBUG_INIT, "pas16: detected board\n");
- }
- }
-
- dprintk(NDEBUG_INIT, "pas16: io_port = 0x%04x\n",
- (unsigned int)io_port);
-
- if (!io_port)
- break;
-
- instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
- if(instance == NULL)
- goto out;
-
- instance->io_port = io_port;
-
- if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, PAS16_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, pas16_intr, 0,
- "pas16", instance)) {
- printk("scsi%d : IRQ%d not free, interrupts disabled\n",
- instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- printk("scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
- printk("scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
- /* Disable 5380 interrupts, leave drive params the same */
- outb( 0x4d, io_port + SYS_CONFIG_4 );
- outb( (inb(io_port + IO_CONFIG_3) & 0x0f), io_port + IO_CONFIG_3 );
- }
-
- dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out:
- return count;
-}
-
-/*
- * Function : int pas16_biosparam(Disk *disk, struct block_device *dev, int *ip)
- *
- * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
- * the specified device / size.
- *
- * Inputs : size = size of device in sectors (512 bytes), dev = block device
- * major / minor, ip[] = {heads, sectors, cylinders}
- *
- * Returns : always 0 (success), initializes ip
- *
- */
-
-/*
- * XXX Most SCSI boards use this mapping, I could be incorrect. Some one
- * using hard disks on a trantor should verify that this mapping corresponds
- * to that used by the BIOS / ASPI driver by running the linux fdisk program
- * and matching the H_C_S coordinates to what DOS uses.
- */
-
-static int pas16_biosparam(struct scsi_device *sdev, struct block_device *dev,
- sector_t capacity, int *ip)
-{
- int size = capacity;
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = size >> 11; /* I think I have it as /(32*64) */
- if( ip[2] > 1024 ) { /* yes, >, not >= */
- ip[0]=255;
- ip[1]=63;
- ip[2]=size/(63*255);
- if( ip[2] > 1023 ) /* yes >1023... */
- ip[2] = 1023;
- }
-
- return 0;
-}
-
-/*
- * Function : int pas16_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, transfers len bytes to
- * dst
- *
- * Inputs : dst = destination, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int pas16_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- register unsigned char *d = dst;
- register unsigned short reg = (unsigned short) (instance->io_port +
- P_DATA_REG_OFFSET);
- register int i = len;
- int ii = 0;
-
- while ( !(inb(instance->io_port + P_STATUS_REG_OFFSET) & P_ST_RDY) )
- ++ii;
-
- insb( reg, d, i );
-
- if ( inb(instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET) & P_TS_TIM) {
- outb( P_TS_CT, instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET);
- printk("scsi%d : watchdog timer fired in NCR5380_pread()\n",
- instance->host_no);
- return -1;
- }
- return 0;
-}
-
-/*
- * Function : int pas16_pwrite (struct Scsi_Host *instance,
- * unsigned char *src, int len)
- *
- * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
- * src
- *
- * Inputs : src = source, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int pas16_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- register unsigned char *s = src;
- register unsigned short reg = (instance->io_port + P_DATA_REG_OFFSET);
- register int i = len;
- int ii = 0;
-
- while ( !((inb(instance->io_port + P_STATUS_REG_OFFSET)) & P_ST_RDY) )
- ++ii;
-
- outsb( reg, s, i );
-
- if (inb(instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET) & P_TS_TIM) {
- outb( P_TS_CT, instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET);
- printk("scsi%d : watchdog timer fired in NCR5380_pwrite()\n",
- instance->host_no);
- return -1;
- }
- return 0;
-}
-
-#include "NCR5380.c"
-
-static int pas16_release(struct Scsi_Host *shost)
-{
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- return 0;
-}
-
-static struct scsi_host_template driver_template = {
- .name = "Pro Audio Spectrum-16 SCSI",
- .detect = pas16_detect,
- .release = pas16_release,
- .proc_name = "pas16",
- .info = pas16_info,
- .queuecommand = pas16_queue_command,
- .eh_abort_handler = pas16_abort,
- .eh_bus_reset_handler = pas16_bus_reset,
- .bios_param = pas16_biosparam,
- .can_queue = 32,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 2,
- .use_clustering = DISABLE_CLUSTERING,
- .cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
-};
-#include "scsi_module.c"
-
-#ifdef MODULE
-module_param(pas16_addr, ushort, 0);
-module_param(pas16_irq, int, 0);
-#endif
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * This driver adapted from Drew Eckhardt's Trantor T128 driver
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * ( Based on T128 - DISTRIBUTION RELEASE 3. )
- *
- * Modified to work with the Pro Audio Spectrum/Studio 16
- * by John Weidman.
- *
- *
- * For more information, please consult
- *
- * Media Vision
- * (510) 770-8600
- * (800) 348-7116
- */
-
-
-#ifndef PAS16_H
-#define PAS16_H
-
-#define PAS16_DEFAULT_BASE_1 0x388
-#define PAS16_DEFAULT_BASE_2 0x384
-#define PAS16_DEFAULT_BASE_3 0x38c
-#define PAS16_DEFAULT_BASE_4 0x288
-
-#define PAS16_DEFAULT_BOARD_1_IRQ 10
-#define PAS16_DEFAULT_BOARD_2_IRQ 12
-#define PAS16_DEFAULT_BOARD_3_IRQ 14
-#define PAS16_DEFAULT_BOARD_4_IRQ 15
-
-
-/*
- * The Pro Audio Spectrum boards are I/O mapped. They use a Zilog 5380
- * SCSI controller, which is the equivalent of NCR's 5380. "Pseudo-DMA"
- * architecture is used, where a PAL drives the DMA signals on the 5380
- * allowing fast, blind transfers with proper handshaking.
- */
-
-
-/* The Time-out Counter register is used to safe-guard against a stuck
- * bus (in the case of RDY driven handshake) or a stuck byte (if 16-Bit
- * DMA conversion is used). The counter uses a 28.224MHz clock
- * divided by 14 as its clock source. In the case of a stuck byte in
- * the holding register, an interrupt is generated (and mixed with the
- * one with the drive) using the CD-ROM interrupt pointer.
- */
-
-#define P_TIMEOUT_COUNTER_REG 0x4000
-#define P_TC_DISABLE 0x80 /* Set to 0 to enable timeout int. */
- /* Bits D6-D0 contain timeout count */
-
-
-#define P_TIMEOUT_STATUS_REG_OFFSET 0x4001
-#define P_TS_TIM 0x80 /* check timeout status */
- /* Bits D6-D4 N/U */
-#define P_TS_ARM_DRQ_INT 0x08 /* Arm DRQ Int. When set high,
- * the next rising edge will
- * cause a CD-ROM interrupt.
- * When set low, the interrupt
- * will be cleared. There is
- * no status available for
- * this interrupt.
- */
-#define P_TS_ENABLE_TO_ERR_INTERRUPT /* Enable timeout error int. */
-#define P_TS_ENABLE_WAIT /* Enable Wait */
-
-#define P_TS_CT 0x01 /* clear timeout. Note: writing
- * to this register clears the
- * timeout error int. or status
- */
-
-
-/*
- * The data register reads/writes to/from the 5380 in pseudo-DMA mode
- */
-
-#define P_DATA_REG_OFFSET 0x5c00 /* rw */
-
-#define P_STATUS_REG_OFFSET 0x5c01 /* ro */
-#define P_ST_RDY 0x80 /* 5380 DDRQ Status */
-
-#define P_IRQ_STATUS 0x5c03
-#define P_IS_IRQ 0x80 /* DIRQ status */
-
-#define PCB_CONFIG 0x803
-#define MASTER_ADDRESS_PTR 0x9a01 /* Fixed position - no relo */
-#define SYS_CONFIG_4 0x8003
-#define WAIT_STATE 0xbc00
-#define OPERATION_MODE_1 0xec03
-#define IO_CONFIG_3 0xf002
-
-#define NCR5380_implementation_fields /* none */
-
-#define PAS16_io_port(reg) (instance->io_port + pas16_offset[(reg)])
-
-#define NCR5380_read(reg) ( inb(PAS16_io_port(reg)) )
-#define NCR5380_write(reg, value) ( outb((value),PAS16_io_port(reg)) )
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
-#define NCR5380_dma_recv_setup pas16_pread
-#define NCR5380_dma_send_setup pas16_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr pas16_intr
-#define NCR5380_queue_command pas16_queue_command
-#define NCR5380_abort pas16_abort
-#define NCR5380_bus_reset pas16_bus_reset
-#define NCR5380_info pas16_info
-
-/* 15 14 12 10 7 5 3
- 1101 0100 1010 1000 */
-
-#define PAS16_IRQS 0xd4a8
-
-#endif /* PAS16_H */
* @num: the inbound queue number
* @phy_id: the phy id which we wanted to start up.
*/
-int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
- u8 phy_id)
+static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
+ u8 phy_id)
{
struct phy_stop_req payload;
struct inbound_queue_table *circularQ;
* pm8001_alloc_dev - find a empty pm8001_device
* @pm8001_ha: our hba card information
*/
-struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha)
+static struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha)
{
u32 dev;
for (dev = 0; dev < PM8001_MAX_DEVICES; dev++) {
* Return Value
* None
*/
-void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, int index)
+static void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, int index)
{
struct pmcraid_ioarcb *ioarcb = &(cmd->ioa_cb->ioarcb);
dma_addr_t dma_addr = cmd->ioa_cb_bus_addr;
* Return Value:
* nothing
*/
-void pmcraid_return_cmd(struct pmcraid_cmd *cmd)
+static void pmcraid_return_cmd(struct pmcraid_cmd *cmd)
{
struct pmcraid_instance *pinstance = cmd->drv_inst;
unsigned long lock_flags;
* @ioasc: ioasc code
* @cmd: pointer to command that resulted in 'ioasc'
*/
-void pmcraid_ioasc_logger(u32 ioasc, struct pmcraid_cmd *cmd)
+static void pmcraid_ioasc_logger(u32 ioasc, struct pmcraid_cmd *cmd)
{
struct pmcraid_ioasc_error *error_info = pmcraid_get_error_info(ioasc);
* returns pointer pmcraid_ioadl_desc, initialized to point to internal
* or external IOADLs
*/
-struct pmcraid_ioadl_desc *
+static struct pmcraid_ioadl_desc *
pmcraid_init_ioadls(struct pmcraid_cmd *cmd, int sgcount)
{
struct pmcraid_ioadl_desc *ioadl;
struct req_que;
struct qla_tgt_sess;
-/*
- * (sd.h is not exported, hence local inclusion)
- * Data Integrity Field tuple.
- */
-struct sd_dif_tuple {
- __be16 guard_tag; /* Checksum */
- __be16 app_tag; /* Opaque storage */
- __be32 ref_tag; /* Target LBA or indirect LBA */
-};
-
/*
* SCSI Request Block
*/
if (scsi_prot_sg_count(cmd)) {
uint32_t i, j = 0, k = 0, num_ent;
struct scatterlist *sg;
- struct sd_dif_tuple *spt;
+ struct t10_pi_tuple *spt;
/* Patch the corresponding protection tags */
scsi_for_each_prot_sg(cmd, sg,
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
- while (((qla2x00_reset_active(vha)) || ha->dpc_active ||
- ha->flags.mbox_busy) ||
- test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
- test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
- if (test_bit(UNLOADING, &base_vha->dpc_flags))
- break;
+ while ((qla2x00_reset_active(vha) || ha->dpc_active ||
+ ha->flags.mbox_busy) ||
+ test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
+ test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
+ if (test_bit(UNLOADING, &base_vha->dpc_flags))
+ break;
msleep(1000);
}
}
qla83xx_wait_logic();
retry++;
ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
- "Failed to release IDC lock, retyring=%d\n", retry);
+ "Failed to release IDC lock, retrying=%d\n", retry);
goto retry_unlock;
}
} else if (retry < 10) {
qla83xx_wait_logic();
retry++;
ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
- "Failed to read drv-lockid, retyring=%d\n", retry);
+ "Failed to read drv-lockid, retrying=%d\n", retry);
goto retry_unlock;
}
qla83xx_wait_logic();
retry++;
ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
- "Failed to release IDC lock, retyring=%d\n", retry);
+ "Failed to release IDC lock, retrying=%d\n", retry);
goto retry_unlock2;
}
}
return rval;
}
-uint32_t ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host *ha, uint32_t addr1,
+static uint32_t ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host *ha, uint32_t addr1,
uint32_t addr3, uint32_t mask, uint32_t addr,
uint32_t *data_ptr)
{
#include <linux/atomic.h>
#include <linux/hrtimer.h>
#include <linux/uuid.h>
+#include <linux/t10-pi.h>
#include <net/checksum.h>
static DEFINE_SPINLOCK(sdebug_host_list_lock);
static unsigned char *fake_storep; /* ramdisk storage */
-static struct sd_dif_tuple *dif_storep; /* protection info */
+static struct t10_pi_tuple *dif_storep; /* protection info */
static void *map_storep; /* provisioning map */
static unsigned long map_size;
return fake_storep + lba * sdebug_sector_size;
}
-static struct sd_dif_tuple *dif_store(sector_t sector)
+static struct t10_pi_tuple *dif_store(sector_t sector)
{
sector = sector_div(sector, sdebug_store_sectors);
} else if (0x86 == cmd[2]) { /* extended inquiry */
arr[1] = cmd[2]; /*sanity */
arr[3] = 0x3c; /* number of following entries */
- if (sdebug_dif == SD_DIF_TYPE3_PROTECTION)
+ if (sdebug_dif == T10_PI_TYPE3_PROTECTION)
arr[4] = 0x4; /* SPT: GRD_CHK:1 */
else if (have_dif_prot)
arr[4] = 0x5; /* SPT: GRD_CHK:1, REF_CHK:1 */
return csum;
}
-static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
+static int dif_verify(struct t10_pi_tuple *sdt, const void *data,
sector_t sector, u32 ei_lba)
{
__be16 csum = dif_compute_csum(data, sdebug_sector_size);
be16_to_cpu(csum));
return 0x01;
}
- if (sdebug_dif == SD_DIF_TYPE1_PROTECTION &&
+ if (sdebug_dif == T10_PI_TYPE1_PROTECTION &&
be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) {
pr_err("REF check failed on sector %lu\n",
(unsigned long)sector);
return 0x03;
}
- if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (sdebug_dif == T10_PI_TYPE2_PROTECTION &&
be32_to_cpu(sdt->ref_tag) != ei_lba) {
pr_err("REF check failed on sector %lu\n",
(unsigned long)sector);
unsigned int sectors, u32 ei_lba)
{
unsigned int i;
- struct sd_dif_tuple *sdt;
+ struct t10_pi_tuple *sdt;
sector_t sector;
for (i = 0; i < sectors; i++, ei_lba++) {
break;
}
if (unlikely(have_dif_prot && check_prot)) {
- if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (sdebug_dif == T10_PI_TYPE2_PROTECTION &&
(cmd[1] & 0xe0)) {
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
- if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION ||
- sdebug_dif == SD_DIF_TYPE3_PROTECTION) &&
+ if ((sdebug_dif == T10_PI_TYPE1_PROTECTION ||
+ sdebug_dif == T10_PI_TYPE3_PROTECTION) &&
(cmd[1] & 0xe0) == 0)
sdev_printk(KERN_ERR, scp->device, "Unprotected RD "
"to DIF device\n");
unsigned int sectors, u32 ei_lba)
{
int ret;
- struct sd_dif_tuple *sdt;
+ struct t10_pi_tuple *sdt;
void *daddr;
sector_t sector = start_sec;
int ppage_offset;
}
for (ppage_offset = 0; ppage_offset < piter.length;
- ppage_offset += sizeof(struct sd_dif_tuple)) {
+ ppage_offset += sizeof(struct t10_pi_tuple)) {
/* If we're at the end of the current
* data page advance to the next one
*/
break;
}
if (unlikely(have_dif_prot && check_prot)) {
- if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (sdebug_dif == T10_PI_TYPE2_PROTECTION &&
(cmd[1] & 0xe0)) {
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
- if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION ||
- sdebug_dif == SD_DIF_TYPE3_PROTECTION) &&
+ if ((sdebug_dif == T10_PI_TYPE1_PROTECTION ||
+ sdebug_dif == T10_PI_TYPE3_PROTECTION) &&
(cmd[1] & 0xe0) == 0)
sdev_printk(KERN_ERR, scp->device, "Unprotected WR "
"to DIF device\n");
num = cmd[13]; /* 1 to a maximum of 255 logical blocks */
if (0 == num)
return 0; /* degenerate case, not an error */
- if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (sdebug_dif == T10_PI_TYPE2_PROTECTION &&
(cmd[1] & 0xe0)) {
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
- if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION ||
- sdebug_dif == SD_DIF_TYPE3_PROTECTION) &&
+ if ((sdebug_dif == T10_PI_TYPE1_PROTECTION ||
+ sdebug_dif == T10_PI_TYPE3_PROTECTION) &&
(cmd[1] & 0xe0) == 0)
sdev_printk(KERN_ERR, scp->device, "Unprotected WR "
"to DIF device\n");
}
switch (sdebug_dif) {
-
- case SD_DIF_TYPE0_PROTECTION:
+ case T10_PI_TYPE0_PROTECTION:
break;
- case SD_DIF_TYPE1_PROTECTION:
- case SD_DIF_TYPE2_PROTECTION:
- case SD_DIF_TYPE3_PROTECTION:
+ case T10_PI_TYPE1_PROTECTION:
+ case T10_PI_TYPE2_PROTECTION:
+ case T10_PI_TYPE3_PROTECTION:
have_dif_prot = true;
break;
if (sdebug_dix) {
int dif_size;
- dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
+ dif_size = sdebug_store_sectors * sizeof(struct t10_pi_tuple);
dif_storep = vmalloc(dif_size);
pr_err("dif_storep %u bytes @ %p\n", dif_size, dif_storep);
switch (sdebug_dif) {
- case SD_DIF_TYPE1_PROTECTION:
+ case T10_PI_TYPE1_PROTECTION:
hprot = SHOST_DIF_TYPE1_PROTECTION;
if (sdebug_dix)
hprot |= SHOST_DIX_TYPE1_PROTECTION;
break;
- case SD_DIF_TYPE2_PROTECTION:
+ case T10_PI_TYPE2_PROTECTION:
hprot = SHOST_DIF_TYPE2_PROTECTION;
if (sdebug_dix)
hprot |= SHOST_DIX_TYPE2_PROTECTION;
break;
- case SD_DIF_TYPE3_PROTECTION:
+ case T10_PI_TYPE3_PROTECTION:
hprot = SHOST_DIF_TYPE3_PROTECTION;
if (sdebug_dix)
hprot |= SHOST_DIX_TYPE3_PROTECTION;
extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
extern void scsi_run_host_queues(struct Scsi_Host *shost);
+extern void scsi_requeue_run_queue(struct work_struct *work);
extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev);
extern int scsi_mq_setup_tags(struct Scsi_Host *shost);
extern void scsi_mq_destroy_tags(struct Scsi_Host *shost);
extern int scsi_init_queue(void);
extern void scsi_exit_queue(void);
+extern void scsi_evt_thread(struct work_struct *work);
struct request_queue;
struct request;
extern struct kmem_cache *scsi_sdb_cache;
struct scsi_device *sdev;
int display_failure_msg = 1, ret;
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- extern void scsi_evt_thread(struct work_struct *work);
- extern void scsi_requeue_run_queue(struct work_struct *work);
sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size,
GFP_ATOMIC);
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include <linux/pr.h>
+#include <linux/t10-pi.h>
#include <asm/uaccess.h>
#include <asm/unaligned.h>
if (err)
return err;
- if (val >= 0 && val <= SD_DIF_TYPE3_PROTECTION)
+ if (val >= 0 && val <= T10_PI_TYPE3_PROTECTION)
sdkp->protection_type = val;
return count;
dif = scsi_host_dif_capable(sdp->host, sdkp->protection_type);
dix = scsi_host_dix_capable(sdp->host, sdkp->protection_type);
- if (!dix && scsi_host_dix_capable(sdp->host, SD_DIF_TYPE0_PROTECTION)) {
+ if (!dix && scsi_host_dix_capable(sdp->host, T10_PI_TYPE0_PROTECTION)) {
dif = 0;
dix = 1;
}
scmd->prot_flags |= SCSI_PROT_GUARD_CHECK;
}
- if (dif != SD_DIF_TYPE3_PROTECTION) { /* DIX/DIF Type 0, 1, 2 */
+ if (dif != T10_PI_TYPE3_PROTECTION) { /* DIX/DIF Type 0, 1, 2 */
scmd->prot_flags |= SCSI_PROT_REF_INCREMENT;
if (bio_integrity_flagged(bio, BIP_CTRL_NOCHECK) == false)
else
protect = 0;
- if (protect && sdkp->protection_type == SD_DIF_TYPE2_PROTECTION) {
+ if (protect && sdkp->protection_type == T10_PI_TYPE2_PROTECTION) {
SCpnt->cmnd = mempool_alloc(sd_cdb_pool, GFP_ATOMIC);
if (unlikely(SCpnt->cmnd == NULL)) {
type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */
- if (type > SD_DIF_TYPE3_PROTECTION)
+ if (type > T10_PI_TYPE3_PROTECTION)
ret = -ENODEV;
else if (scsi_host_dif_capable(sdp->host, type))
ret = 1;
return blocks * sdev->sector_size;
}
-/*
- * A DIF-capable target device can be formatted with different
- * protection schemes. Currently 0 through 3 are defined:
- *
- * Type 0 is regular (unprotected) I/O
- *
- * Type 1 defines the contents of the guard and reference tags
- *
- * Type 2 defines the contents of the guard and reference tags and
- * uses 32-byte commands to seed the latter
- *
- * Type 3 defines the contents of the guard tag only
- */
-
-enum sd_dif_target_protection_types {
- SD_DIF_TYPE0_PROTECTION = 0x0,
- SD_DIF_TYPE1_PROTECTION = 0x1,
- SD_DIF_TYPE2_PROTECTION = 0x2,
- SD_DIF_TYPE3_PROTECTION = 0x3,
-};
-
/*
* Look up the DIX operation based on whether the command is read or
* write and whether dix and dif are enabled.
return flag_mask[prot_op];
}
-/*
- * Data Integrity Field tuple.
- */
-struct sd_dif_tuple {
- __be16 guard_tag; /* Checksum */
- __be16 app_tag; /* Opaque storage */
- __be32 ref_tag; /* Target LBA or indirect LBA */
-};
-
#ifdef CONFIG_BLK_DEV_INTEGRITY
extern void sd_dif_config_host(struct scsi_disk *);
/* Enable DMA of protection information */
if (scsi_host_get_guard(sdkp->device->host) & SHOST_DIX_GUARD_IP) {
- if (type == SD_DIF_TYPE3_PROTECTION)
+ if (type == T10_PI_TYPE3_PROTECTION)
bi.profile = &t10_pi_type3_ip;
else
bi.profile = &t10_pi_type1_ip;
bi.flags |= BLK_INTEGRITY_IP_CHECKSUM;
} else
- if (type == SD_DIF_TYPE3_PROTECTION)
+ if (type == T10_PI_TYPE3_PROTECTION)
bi.profile = &t10_pi_type3_crc;
else
bi.profile = &t10_pi_type1_crc;
if (!sdkp->ATO)
goto out;
- if (type == SD_DIF_TYPE3_PROTECTION)
+ if (type == T10_PI_TYPE3_PROTECTION)
bi.tag_size = sizeof(u16) + sizeof(u32);
else
bi.tag_size = sizeof(u16);
sdkp = scsi_disk(scmd->request->rq_disk);
- if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION)
+ if (sdkp->protection_type == T10_PI_TYPE3_PROTECTION)
return;
phys = scsi_prot_ref_tag(scmd);
sdkp = scsi_disk(scmd->request->rq_disk);
- if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION || good_bytes == 0)
+ if (sdkp->protection_type == T10_PI_TYPE3_PROTECTION || good_bytes == 0)
return;
intervals = good_bytes / scsi_prot_interval(scmd);
*/
#define SG_MAX_CDB_SIZE 252
-/*
- * Suppose you want to calculate the formula muldiv(x,m,d)=int(x * m / d)
- * Then when using 32 bit integers x * m may overflow during the calculation.
- * Replacing muldiv(x) by muldiv(x)=((x % d) * m) / d + int(x / d) * m
- * calculates the same, but prevents the overflow when both m and d
- * are "small" numbers (like HZ and USER_HZ).
- * Of course an overflow is inavoidable if the result of muldiv doesn't fit
- * in 32 bits.
- */
-#define MULDIV(X,MUL,DIV) ((((X % DIV) * MUL) / DIV) + ((X / DIV) * MUL))
-
-#define SG_DEFAULT_TIMEOUT MULDIV(SG_DEFAULT_TIMEOUT_USER, HZ, USER_HZ)
+#define SG_DEFAULT_TIMEOUT mult_frac(SG_DEFAULT_TIMEOUT_USER, HZ, USER_HZ)
int sg_big_buff = SG_DEF_RESERVED_SIZE;
/* N.B. This variable is readable and writeable via
return result;
if (val < 0)
return -EIO;
- if (val >= MULDIV (INT_MAX, USER_HZ, HZ))
- val = MULDIV (INT_MAX, USER_HZ, HZ);
+ if (val >= mult_frac((s64)INT_MAX, USER_HZ, HZ))
+ val = min_t(s64, mult_frac((s64)INT_MAX, USER_HZ, HZ),
+ INT_MAX);
sfp->timeout_user = val;
- sfp->timeout = MULDIV (val, HZ, USER_HZ);
+ sfp->timeout = mult_frac(val, HZ, USER_HZ);
return 0;
case SG_GET_TIMEOUT: /* N.B. User receives timeout as return value */
--- /dev/null
+#
+# Kernel configuration file for the SMARTPQI
+#
+# Copyright (c) 2016 Microsemi Corporation
+# Copyright (c) 2016 PMC-Sierra, Inc.
+# (mailto:esc.storagedev@microsemi.com)
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; version 2
+# of the License.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# NO WARRANTY
+# THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+# CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+# LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+# solely responsible for determining the appropriateness of using and
+# distributing the Program and assumes all risks associated with its
+# exercise of rights under this Agreement, including but not limited to
+# the risks and costs of program errors, damage to or loss of data,
+# programs or equipment, and unavailability or interruption of operations.
+
+# DISCLAIMER OF LIABILITY
+# NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+# USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+# HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+config SCSI_SMARTPQI
+ tristate "Microsemi PQI Driver"
+ depends on PCI && SCSI && !S390
+ select SCSI_SAS_ATTRS
+ select RAID_ATTRS
+ ---help---
+ This driver supports Microsemi PQI controllers.
+
+ <http://www.microsemi.com>
+
+ To compile this driver as a module, choose M here: the
+ module will be called smartpqi.
+
+ Note: the aacraid driver will not manage a smartpqi
+ controller. You need to enable smartpqi for smartpqi
+ controllers. For more information, please see
+ Documentation/scsi/smartpqi.txt
--- /dev/null
+ccflags-y += -I.
+obj-m += smartpqi.o
+smartpqi-objs := smartpqi_init.o smartpqi_sis.o smartpqi_sas_transport.o
--- /dev/null
+/*
+ * driver for Microsemi PQI-based storage controllers
+ * Copyright (c) 2016 Microsemi Corporation
+ * Copyright (c) 2016 PMC-Sierra, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more details.
+ *
+ * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
+ *
+ */
+
+#if !defined(_SMARTPQI_H)
+#define _SMARTPQI_H
+
+#pragma pack(1)
+
+#define PQI_DEVICE_SIGNATURE "PQI DREG"
+
+/* This structure is defined by the PQI specification. */
+struct pqi_device_registers {
+ __le64 signature;
+ u8 function_and_status_code;
+ u8 reserved[7];
+ u8 max_admin_iq_elements;
+ u8 max_admin_oq_elements;
+ u8 admin_iq_element_length; /* in 16-byte units */
+ u8 admin_oq_element_length; /* in 16-byte units */
+ __le16 max_reset_timeout; /* in 100-millisecond units */
+ u8 reserved1[2];
+ __le32 legacy_intx_status;
+ __le32 legacy_intx_mask_set;
+ __le32 legacy_intx_mask_clear;
+ u8 reserved2[28];
+ __le32 device_status;
+ u8 reserved3[4];
+ __le64 admin_iq_pi_offset;
+ __le64 admin_oq_ci_offset;
+ __le64 admin_iq_element_array_addr;
+ __le64 admin_oq_element_array_addr;
+ __le64 admin_iq_ci_addr;
+ __le64 admin_oq_pi_addr;
+ u8 admin_iq_num_elements;
+ u8 admin_oq_num_elements;
+ __le16 admin_queue_int_msg_num;
+ u8 reserved4[4];
+ __le32 device_error;
+ u8 reserved5[4];
+ __le64 error_details;
+ __le32 device_reset;
+ __le32 power_action;
+ u8 reserved6[104];
+};
+
+/*
+ * controller registers
+ *
+ * These are defined by the PMC implementation.
+ *
+ * Some registers (those named sis_*) are only used when in
+ * legacy SIS mode before we transition the controller into
+ * PQI mode. There are a number of other SIS mode registers,
+ * but we don't use them, so only the SIS registers that we
+ * care about are defined here. The offsets mentioned in the
+ * comments are the offsets from the PCIe BAR 0.
+ */
+struct pqi_ctrl_registers {
+ u8 reserved[0x20];
+ __le32 sis_host_to_ctrl_doorbell; /* 20h */
+ u8 reserved1[0x34 - (0x20 + sizeof(__le32))];
+ __le32 sis_interrupt_mask; /* 34h */
+ u8 reserved2[0x9c - (0x34 + sizeof(__le32))];
+ __le32 sis_ctrl_to_host_doorbell; /* 9Ch */
+ u8 reserved3[0xa0 - (0x9c + sizeof(__le32))];
+ __le32 sis_ctrl_to_host_doorbell_clear; /* A0h */
+ u8 reserved4[0xb0 - (0xa0 + sizeof(__le32))];
+ __le32 sis_driver_scratch; /* B0h */
+ u8 reserved5[0xbc - (0xb0 + sizeof(__le32))];
+ __le32 sis_firmware_status; /* BCh */
+ u8 reserved6[0x1000 - (0xbc + sizeof(__le32))];
+ __le32 sis_mailbox[8]; /* 1000h */
+ u8 reserved7[0x4000 - (0x1000 + (sizeof(__le32) * 8))];
+ /*
+ * The PQI spec states that the PQI registers should be at
+ * offset 0 from the PCIe BAR 0. However, we can't map
+ * them at offset 0 because that would break compatibility
+ * with the SIS registers. So we map them at offset 4000h.
+ */
+ struct pqi_device_registers pqi_registers; /* 4000h */
+};
+
+#define PQI_DEVICE_REGISTERS_OFFSET 0x4000
+
+enum pqi_io_path {
+ RAID_PATH = 0,
+ AIO_PATH = 1
+};
+
+struct pqi_sg_descriptor {
+ __le64 address;
+ __le32 length;
+ __le32 flags;
+};
+
+/* manifest constants for the flags field of pqi_sg_descriptor */
+#define CISS_SG_LAST 0x40000000
+#define CISS_SG_CHAIN 0x80000000
+
+struct pqi_iu_header {
+ u8 iu_type;
+ u8 reserved;
+ __le16 iu_length; /* in bytes - does not include the length */
+ /* of this header */
+ __le16 response_queue_id; /* specifies the OQ where the */
+ /* response IU is to be delivered */
+ u8 work_area[2]; /* reserved for driver use */
+};
+
+/*
+ * According to the PQI spec, the IU header is only the first 4 bytes of our
+ * pqi_iu_header structure.
+ */
+#define PQI_REQUEST_HEADER_LENGTH 4
+
+struct pqi_general_admin_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ u8 function_code;
+ union {
+ struct {
+ u8 reserved[33];
+ __le32 buffer_length;
+ struct pqi_sg_descriptor sg_descriptor;
+ } report_device_capability;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[2];
+ __le64 element_array_addr;
+ __le64 ci_addr;
+ __le16 num_elements;
+ __le16 element_length;
+ u8 queue_protocol;
+ u8 reserved2[23];
+ __le32 vendor_specific;
+ } create_operational_iq;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[2];
+ __le64 element_array_addr;
+ __le64 pi_addr;
+ __le16 num_elements;
+ __le16 element_length;
+ u8 queue_protocol;
+ u8 reserved2[3];
+ __le16 int_msg_num;
+ __le16 coalescing_count;
+ __le32 min_coalescing_time;
+ __le32 max_coalescing_time;
+ u8 reserved3[8];
+ __le32 vendor_specific;
+ } create_operational_oq;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[50];
+ } delete_operational_queue;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[46];
+ __le32 vendor_specific;
+ } change_operational_iq_properties;
+
+ } data;
+};
+
+struct pqi_general_admin_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ u8 function_code;
+ u8 status;
+ union {
+ struct {
+ u8 status_descriptor[4];
+ __le64 iq_pi_offset;
+ u8 reserved[40];
+ } create_operational_iq;
+
+ struct {
+ u8 status_descriptor[4];
+ __le64 oq_ci_offset;
+ u8 reserved[40];
+ } create_operational_oq;
+ } data;
+};
+
+struct pqi_iu_layer_descriptor {
+ u8 inbound_spanning_supported : 1;
+ u8 reserved : 7;
+ u8 reserved1[5];
+ __le16 max_inbound_iu_length;
+ u8 outbound_spanning_supported : 1;
+ u8 reserved2 : 7;
+ u8 reserved3[5];
+ __le16 max_outbound_iu_length;
+};
+
+struct pqi_device_capability {
+ __le16 data_length;
+ u8 reserved[6];
+ u8 iq_arbitration_priority_support_bitmask;
+ u8 maximum_aw_a;
+ u8 maximum_aw_b;
+ u8 maximum_aw_c;
+ u8 max_arbitration_burst : 3;
+ u8 reserved1 : 4;
+ u8 iqa : 1;
+ u8 reserved2[2];
+ u8 iq_freeze : 1;
+ u8 reserved3 : 7;
+ __le16 max_inbound_queues;
+ __le16 max_elements_per_iq;
+ u8 reserved4[4];
+ __le16 max_iq_element_length;
+ __le16 min_iq_element_length;
+ u8 reserved5[2];
+ __le16 max_outbound_queues;
+ __le16 max_elements_per_oq;
+ __le16 intr_coalescing_time_granularity;
+ __le16 max_oq_element_length;
+ __le16 min_oq_element_length;
+ u8 reserved6[24];
+ struct pqi_iu_layer_descriptor iu_layer_descriptors[32];
+};
+
+#define PQI_MAX_EMBEDDED_SG_DESCRIPTORS 4
+
+struct pqi_raid_path_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 nexus_id;
+ __le32 buffer_length;
+ u8 lun_number[8];
+ __le16 protocol_specific;
+ u8 data_direction : 2;
+ u8 partial : 1;
+ u8 reserved1 : 4;
+ u8 fence : 1;
+ __le16 error_index;
+ u8 reserved2;
+ u8 task_attribute : 3;
+ u8 command_priority : 4;
+ u8 reserved3 : 1;
+ u8 reserved4 : 2;
+ u8 additional_cdb_bytes_usage : 3;
+ u8 reserved5 : 3;
+ u8 cdb[32];
+ struct pqi_sg_descriptor
+ sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
+};
+
+struct pqi_aio_path_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ u8 reserved1[2];
+ __le32 nexus_id;
+ __le32 buffer_length;
+ u8 data_direction : 2;
+ u8 partial : 1;
+ u8 memory_type : 1;
+ u8 fence : 1;
+ u8 encryption_enable : 1;
+ u8 reserved2 : 2;
+ u8 task_attribute : 3;
+ u8 command_priority : 4;
+ u8 reserved3 : 1;
+ __le16 data_encryption_key_index;
+ __le32 encrypt_tweak_lower;
+ __le32 encrypt_tweak_upper;
+ u8 cdb[16];
+ __le16 error_index;
+ u8 num_sg_descriptors;
+ u8 cdb_length;
+ u8 lun_number[8];
+ u8 reserved4[4];
+ struct pqi_sg_descriptor
+ sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
+};
+
+struct pqi_io_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 error_index;
+ u8 reserved2[4];
+};
+
+struct pqi_general_management_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ union {
+ struct {
+ u8 reserved[2];
+ __le32 buffer_length;
+ struct pqi_sg_descriptor sg_descriptors[3];
+ } report_event_configuration;
+
+ struct {
+ __le16 global_event_oq_id;
+ __le32 buffer_length;
+ struct pqi_sg_descriptor sg_descriptors[3];
+ } set_event_configuration;
+ } data;
+};
+
+struct pqi_event_descriptor {
+ u8 event_type;
+ u8 reserved;
+ __le16 oq_id;
+};
+
+struct pqi_event_config {
+ u8 reserved[2];
+ u8 num_event_descriptors;
+ u8 reserved1;
+ struct pqi_event_descriptor descriptors[1];
+};
+
+#define PQI_MAX_EVENT_DESCRIPTORS 255
+
+struct pqi_event_response {
+ struct pqi_iu_header header;
+ u8 event_type;
+ u8 reserved2 : 7;
+ u8 request_acknowlege : 1;
+ __le16 event_id;
+ __le32 additional_event_id;
+ u8 data[16];
+};
+
+struct pqi_event_acknowledge_request {
+ struct pqi_iu_header header;
+ u8 event_type;
+ u8 reserved2;
+ __le16 event_id;
+ __le32 additional_event_id;
+};
+
+struct pqi_task_management_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 nexus_id;
+ u8 reserved[4];
+ u8 lun_number[8];
+ __le16 protocol_specific;
+ __le16 outbound_queue_id_to_manage;
+ __le16 request_id_to_manage;
+ u8 task_management_function;
+ u8 reserved2 : 7;
+ u8 fence : 1;
+};
+
+#define SOP_TASK_MANAGEMENT_LUN_RESET 0x8
+
+struct pqi_task_management_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 nexus_id;
+ u8 additional_response_info[3];
+ u8 response_code;
+};
+
+struct pqi_aio_error_info {
+ u8 status;
+ u8 service_response;
+ u8 data_present;
+ u8 reserved;
+ __le32 residual_count;
+ __le16 data_length;
+ __le16 reserved1;
+ u8 data[256];
+};
+
+struct pqi_raid_error_info {
+ u8 data_in_result;
+ u8 data_out_result;
+ u8 reserved[3];
+ u8 status;
+ __le16 status_qualifier;
+ __le16 sense_data_length;
+ __le16 response_data_length;
+ __le32 data_in_transferred;
+ __le32 data_out_transferred;
+ u8 data[256];
+};
+
+#define PQI_REQUEST_IU_TASK_MANAGEMENT 0x13
+#define PQI_REQUEST_IU_RAID_PATH_IO 0x14
+#define PQI_REQUEST_IU_AIO_PATH_IO 0x15
+#define PQI_REQUEST_IU_GENERAL_ADMIN 0x60
+#define PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG 0x72
+#define PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG 0x73
+#define PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT 0xf6
+
+#define PQI_RESPONSE_IU_GENERAL_MANAGEMENT 0x81
+#define PQI_RESPONSE_IU_TASK_MANAGEMENT 0x93
+#define PQI_RESPONSE_IU_GENERAL_ADMIN 0xe0
+#define PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS 0xf0
+#define PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS 0xf1
+#define PQI_RESPONSE_IU_RAID_PATH_IO_ERROR 0xf2
+#define PQI_RESPONSE_IU_AIO_PATH_IO_ERROR 0xf3
+#define PQI_RESPONSE_IU_AIO_PATH_DISABLED 0xf4
+#define PQI_RESPONSE_IU_VENDOR_EVENT 0xf5
+
+#define PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY 0x0
+#define PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ 0x10
+#define PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ 0x11
+#define PQI_GENERAL_ADMIN_FUNCTION_DELETE_IQ 0x12
+#define PQI_GENERAL_ADMIN_FUNCTION_DELETE_OQ 0x13
+#define PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY 0x14
+
+#define PQI_GENERAL_ADMIN_STATUS_SUCCESS 0x0
+
+#define PQI_IQ_PROPERTY_IS_AIO_QUEUE 0x1
+
+#define PQI_GENERAL_ADMIN_IU_LENGTH 0x3c
+#define PQI_PROTOCOL_SOP 0x0
+
+#define PQI_DATA_IN_OUT_GOOD 0x0
+#define PQI_DATA_IN_OUT_UNDERFLOW 0x1
+#define PQI_DATA_IN_OUT_BUFFER_ERROR 0x40
+#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW 0x41
+#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA 0x42
+#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE 0x43
+#define PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR 0x60
+#define PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT 0x61
+#define PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED 0x62
+#define PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED 0x63
+#define PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED 0x64
+#define PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST 0x65
+#define PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION 0x66
+#define PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED 0x67
+#define PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ 0x6F
+#define PQI_DATA_IN_OUT_ERROR 0xf0
+#define PQI_DATA_IN_OUT_PROTOCOL_ERROR 0xf1
+#define PQI_DATA_IN_OUT_HARDWARE_ERROR 0xf2
+#define PQI_DATA_IN_OUT_UNSOLICITED_ABORT 0xf3
+#define PQI_DATA_IN_OUT_ABORTED 0xf4
+#define PQI_DATA_IN_OUT_TIMEOUT 0xf5
+
+#define CISS_CMD_STATUS_SUCCESS 0x0
+#define CISS_CMD_STATUS_TARGET_STATUS 0x1
+#define CISS_CMD_STATUS_DATA_UNDERRUN 0x2
+#define CISS_CMD_STATUS_DATA_OVERRUN 0x3
+#define CISS_CMD_STATUS_INVALID 0x4
+#define CISS_CMD_STATUS_PROTOCOL_ERROR 0x5
+#define CISS_CMD_STATUS_HARDWARE_ERROR 0x6
+#define CISS_CMD_STATUS_CONNECTION_LOST 0x7
+#define CISS_CMD_STATUS_ABORTED 0x8
+#define CISS_CMD_STATUS_ABORT_FAILED 0x9
+#define CISS_CMD_STATUS_UNSOLICITED_ABORT 0xa
+#define CISS_CMD_STATUS_TIMEOUT 0xb
+#define CISS_CMD_STATUS_UNABORTABLE 0xc
+#define CISS_CMD_STATUS_TMF 0xd
+#define CISS_CMD_STATUS_AIO_DISABLED 0xe
+
+#define PQI_NUM_EVENT_QUEUE_ELEMENTS 32
+#define PQI_EVENT_OQ_ELEMENT_LENGTH sizeof(struct pqi_event_response)
+
+#define PQI_EVENT_TYPE_HOTPLUG 0x1
+#define PQI_EVENT_TYPE_HARDWARE 0x2
+#define PQI_EVENT_TYPE_PHYSICAL_DEVICE 0x4
+#define PQI_EVENT_TYPE_LOGICAL_DEVICE 0x5
+#define PQI_EVENT_TYPE_AIO_STATE_CHANGE 0xfd
+#define PQI_EVENT_TYPE_AIO_CONFIG_CHANGE 0xfe
+#define PQI_EVENT_TYPE_HEARTBEAT 0xff
+
+#pragma pack()
+
+#define PQI_ERROR_BUFFER_ELEMENT_LENGTH \
+ sizeof(struct pqi_raid_error_info)
+
+/* these values are based on our implementation */
+#define PQI_ADMIN_IQ_NUM_ELEMENTS 8
+#define PQI_ADMIN_OQ_NUM_ELEMENTS 20
+#define PQI_ADMIN_IQ_ELEMENT_LENGTH 64
+#define PQI_ADMIN_OQ_ELEMENT_LENGTH 64
+
+#define PQI_OPERATIONAL_IQ_ELEMENT_LENGTH 128
+#define PQI_OPERATIONAL_OQ_ELEMENT_LENGTH 16
+
+#define PQI_MIN_MSIX_VECTORS 1
+#define PQI_MAX_MSIX_VECTORS 64
+
+/* these values are defined by the PQI spec */
+#define PQI_MAX_NUM_ELEMENTS_ADMIN_QUEUE 255
+#define PQI_MAX_NUM_ELEMENTS_OPERATIONAL_QUEUE 65535
+#define PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT 64
+#define PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT 16
+#define PQI_ADMIN_INDEX_ALIGNMENT 64
+#define PQI_OPERATIONAL_INDEX_ALIGNMENT 4
+
+#define PQI_MIN_OPERATIONAL_QUEUE_ID 1
+#define PQI_MAX_OPERATIONAL_QUEUE_ID 65535
+
+#define PQI_AIO_SERV_RESPONSE_COMPLETE 0
+#define PQI_AIO_SERV_RESPONSE_FAILURE 1
+#define PQI_AIO_SERV_RESPONSE_TMF_COMPLETE 2
+#define PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED 3
+#define PQI_AIO_SERV_RESPONSE_TMF_REJECTED 4
+#define PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN 5
+
+#define PQI_AIO_STATUS_IO_ERROR 0x1
+#define PQI_AIO_STATUS_IO_ABORTED 0x2
+#define PQI_AIO_STATUS_NO_PATH_TO_DEVICE 0x3
+#define PQI_AIO_STATUS_INVALID_DEVICE 0x4
+#define PQI_AIO_STATUS_AIO_PATH_DISABLED 0xe
+#define PQI_AIO_STATUS_UNDERRUN 0x51
+#define PQI_AIO_STATUS_OVERRUN 0x75
+
+typedef u32 pqi_index_t;
+
+/* SOP data direction flags */
+#define SOP_NO_DIRECTION_FLAG 0
+#define SOP_WRITE_FLAG 1 /* host writes data to Data-Out */
+ /* buffer */
+#define SOP_READ_FLAG 2 /* host receives data from Data-In */
+ /* buffer */
+#define SOP_BIDIRECTIONAL 3 /* data is transferred from the */
+ /* Data-Out buffer and data is */
+ /* transferred to the Data-In buffer */
+
+#define SOP_TASK_ATTRIBUTE_SIMPLE 0
+#define SOP_TASK_ATTRIBUTE_HEAD_OF_QUEUE 1
+#define SOP_TASK_ATTRIBUTE_ORDERED 2
+#define SOP_TASK_ATTRIBUTE_ACA 4
+
+#define SOP_TMF_COMPLETE 0x0
+#define SOP_TMF_FUNCTION_SUCCEEDED 0x8
+
+/* additional CDB bytes usage field codes */
+#define SOP_ADDITIONAL_CDB_BYTES_0 0 /* 16-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_4 1 /* 20-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_8 2 /* 24-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_12 3 /* 28-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_16 4 /* 32-byte CDB */
+
+/*
+ * The purpose of this structure is to obtain proper alignment of objects in
+ * an admin queue pair.
+ */
+struct pqi_admin_queues_aligned {
+ __aligned(PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT)
+ u8 iq_element_array[PQI_ADMIN_IQ_ELEMENT_LENGTH]
+ [PQI_ADMIN_IQ_NUM_ELEMENTS];
+ __aligned(PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT)
+ u8 oq_element_array[PQI_ADMIN_OQ_ELEMENT_LENGTH]
+ [PQI_ADMIN_OQ_NUM_ELEMENTS];
+ __aligned(PQI_ADMIN_INDEX_ALIGNMENT) pqi_index_t iq_ci;
+ __aligned(PQI_ADMIN_INDEX_ALIGNMENT) pqi_index_t oq_pi;
+};
+
+struct pqi_admin_queues {
+ void *iq_element_array;
+ void *oq_element_array;
+ volatile pqi_index_t *iq_ci;
+ volatile pqi_index_t *oq_pi;
+ dma_addr_t iq_element_array_bus_addr;
+ dma_addr_t oq_element_array_bus_addr;
+ dma_addr_t iq_ci_bus_addr;
+ dma_addr_t oq_pi_bus_addr;
+ __le32 __iomem *iq_pi;
+ pqi_index_t iq_pi_copy;
+ __le32 __iomem *oq_ci;
+ pqi_index_t oq_ci_copy;
+ struct task_struct *task;
+ u16 int_msg_num;
+};
+
+struct pqi_queue_group {
+ struct pqi_ctrl_info *ctrl_info; /* backpointer */
+ u16 iq_id[2];
+ u16 oq_id;
+ u16 int_msg_num;
+ void *iq_element_array[2];
+ void *oq_element_array;
+ dma_addr_t iq_element_array_bus_addr[2];
+ dma_addr_t oq_element_array_bus_addr;
+ __le32 __iomem *iq_pi[2];
+ pqi_index_t iq_pi_copy[2];
+ volatile pqi_index_t *iq_ci[2];
+ volatile pqi_index_t *oq_pi;
+ dma_addr_t iq_ci_bus_addr[2];
+ dma_addr_t oq_pi_bus_addr;
+ __le32 __iomem *oq_ci;
+ pqi_index_t oq_ci_copy;
+ spinlock_t submit_lock[2]; /* protect submission queue */
+ struct list_head request_list[2];
+};
+
+struct pqi_event_queue {
+ u16 oq_id;
+ u16 int_msg_num;
+ void *oq_element_array;
+ volatile pqi_index_t *oq_pi;
+ dma_addr_t oq_element_array_bus_addr;
+ dma_addr_t oq_pi_bus_addr;
+ __le32 __iomem *oq_ci;
+ pqi_index_t oq_ci_copy;
+};
+
+#define PQI_DEFAULT_QUEUE_GROUP 0
+#define PQI_MAX_QUEUE_GROUPS PQI_MAX_MSIX_VECTORS
+
+struct pqi_encryption_info {
+ u16 data_encryption_key_index;
+ u32 encrypt_tweak_lower;
+ u32 encrypt_tweak_upper;
+};
+
+#define PQI_MAX_OUTSTANDING_REQUESTS ((u32)~0)
+#define PQI_MAX_TRANSFER_SIZE (4 * 1024U * 1024U)
+
+#define RAID_MAP_MAX_ENTRIES 1024
+
+#define PQI_PHYSICAL_DEVICE_BUS 0
+#define PQI_RAID_VOLUME_BUS 1
+#define PQI_HBA_BUS 2
+#define PQI_MAX_BUS PQI_HBA_BUS
+
+#pragma pack(1)
+
+struct report_lun_header {
+ __be32 list_length;
+ u8 extended_response;
+ u8 reserved[3];
+};
+
+struct report_log_lun_extended_entry {
+ u8 lunid[8];
+ u8 volume_id[16];
+};
+
+struct report_log_lun_extended {
+ struct report_lun_header header;
+ struct report_log_lun_extended_entry lun_entries[1];
+};
+
+struct report_phys_lun_extended_entry {
+ u8 lunid[8];
+ __be64 wwid;
+ u8 device_type;
+ u8 device_flags;
+ u8 lun_count; /* number of LUNs in a multi-LUN device */
+ u8 redundant_paths;
+ u32 aio_handle;
+};
+
+/* for device_flags field of struct report_phys_lun_extended_entry */
+#define REPORT_PHYS_LUN_DEV_FLAG_NON_DISK 0x1
+#define REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED 0x8
+
+struct report_phys_lun_extended {
+ struct report_lun_header header;
+ struct report_phys_lun_extended_entry lun_entries[1];
+};
+
+struct raid_map_disk_data {
+ u32 aio_handle;
+ u8 xor_mult[2];
+ u8 reserved[2];
+};
+
+/* constants for flags field of RAID map */
+#define RAID_MAP_ENCRYPTION_ENABLED 0x1
+
+struct raid_map {
+ __le32 structure_size; /* size of entire structure in bytes */
+ __le32 volume_blk_size; /* bytes / block in the volume */
+ __le64 volume_blk_cnt; /* logical blocks on the volume */
+ u8 phys_blk_shift; /* shift factor to convert between */
+ /* units of logical blocks and */
+ /* physical disk blocks */
+ u8 parity_rotation_shift; /* shift factor to convert between */
+ /* units of logical stripes and */
+ /* physical stripes */
+ __le16 strip_size; /* blocks used on each disk / stripe */
+ __le64 disk_starting_blk; /* first disk block used in volume */
+ __le64 disk_blk_cnt; /* disk blocks used by volume / disk */
+ __le16 data_disks_per_row; /* data disk entries / row in the map */
+ __le16 metadata_disks_per_row; /* mirror/parity disk entries / row */
+ /* in the map */
+ __le16 row_cnt; /* rows in each layout map */
+ __le16 layout_map_count; /* layout maps (1 map per */
+ /* mirror parity group) */
+ __le16 flags;
+ __le16 data_encryption_key_index;
+ u8 reserved[16];
+ struct raid_map_disk_data disk_data[RAID_MAP_MAX_ENTRIES];
+};
+
+#pragma pack()
+
+#define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0"
+
+struct pqi_scsi_dev {
+ int devtype; /* as reported by INQUIRY commmand */
+ u8 device_type; /* as reported by */
+ /* BMIC_IDENTIFY_PHYSICAL_DEVICE */
+ /* only valid for devtype = TYPE_DISK */
+ int bus;
+ int target;
+ int lun;
+ u8 scsi3addr[8];
+ __be64 wwid;
+ u8 volume_id[16];
+ u8 is_physical_device : 1;
+ u8 target_lun_valid : 1;
+ u8 expose_device : 1;
+ u8 no_uld_attach : 1;
+ u8 aio_enabled : 1; /* only valid for physical disks */
+ u8 device_gone : 1;
+ u8 new_device : 1;
+ u8 keep_device : 1;
+ u8 volume_offline : 1;
+ u8 vendor[8]; /* bytes 8-15 of inquiry data */
+ u8 model[16]; /* bytes 16-31 of inquiry data */
+ u64 sas_address;
+ u8 raid_level;
+ u16 queue_depth; /* max. queue_depth for this device */
+ u16 advertised_queue_depth;
+ u32 aio_handle;
+ u8 volume_status;
+ u8 active_path_index;
+ u8 path_map;
+ u8 bay;
+ u8 box[8];
+ u16 phys_connector[8];
+ int offload_configured; /* I/O accel RAID offload configured */
+ int offload_enabled; /* I/O accel RAID offload enabled */
+ int offload_enabled_pending;
+ int offload_to_mirror; /* Send next I/O accelerator RAID */
+ /* offload request to mirror drive. */
+ struct raid_map *raid_map; /* I/O accelerator RAID map */
+
+ struct pqi_sas_port *sas_port;
+ struct scsi_device *sdev;
+
+ struct list_head scsi_device_list_entry;
+ struct list_head new_device_list_entry;
+ struct list_head add_list_entry;
+ struct list_head delete_list_entry;
+};
+
+/* VPD inquiry pages */
+#define SCSI_VPD_SUPPORTED_PAGES 0x0 /* standard page */
+#define SCSI_VPD_DEVICE_ID 0x83 /* standard page */
+#define CISS_VPD_LV_DEVICE_GEOMETRY 0xc1 /* vendor-specific page */
+#define CISS_VPD_LV_OFFLOAD_STATUS 0xc2 /* vendor-specific page */
+#define CISS_VPD_LV_STATUS 0xc3 /* vendor-specific page */
+
+#define VPD_PAGE (1 << 8)
+
+#pragma pack(1)
+
+/* structure for CISS_VPD_LV_STATUS */
+struct ciss_vpd_logical_volume_status {
+ u8 peripheral_info;
+ u8 page_code;
+ u8 reserved;
+ u8 page_length;
+ u8 volume_status;
+ u8 reserved2[3];
+ __be32 flags;
+};
+
+#pragma pack()
+
+/* constants for volume_status field of ciss_vpd_logical_volume_status */
+#define CISS_LV_OK 0
+#define CISS_LV_FAILED 1
+#define CISS_LV_NOT_CONFIGURED 2
+#define CISS_LV_DEGRADED 3
+#define CISS_LV_READY_FOR_RECOVERY 4
+#define CISS_LV_UNDERGOING_RECOVERY 5
+#define CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED 6
+#define CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM 7
+#define CISS_LV_HARDWARE_OVERHEATING 8
+#define CISS_LV_HARDWARE_HAS_OVERHEATED 9
+#define CISS_LV_UNDERGOING_EXPANSION 10
+#define CISS_LV_NOT_AVAILABLE 11
+#define CISS_LV_QUEUED_FOR_EXPANSION 12
+#define CISS_LV_DISABLED_SCSI_ID_CONFLICT 13
+#define CISS_LV_EJECTED 14
+#define CISS_LV_UNDERGOING_ERASE 15
+/* state 16 not used */
+#define CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD 17
+#define CISS_LV_UNDERGOING_RPI 18
+#define CISS_LV_PENDING_RPI 19
+#define CISS_LV_ENCRYPTED_NO_KEY 20
+/* state 21 not used */
+#define CISS_LV_UNDERGOING_ENCRYPTION 22
+#define CISS_LV_UNDERGOING_ENCRYPTION_REKEYING 23
+#define CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER 24
+#define CISS_LV_PENDING_ENCRYPTION 25
+#define CISS_LV_PENDING_ENCRYPTION_REKEYING 26
+#define CISS_LV_NOT_SUPPORTED 27
+#define CISS_LV_STATUS_UNAVAILABLE 255
+
+/* constants for flags field of ciss_vpd_logical_volume_status */
+#define CISS_LV_FLAGS_NO_HOST_IO 0x1 /* volume not available for */
+ /* host I/O */
+
+/* for SAS hosts and SAS expanders */
+struct pqi_sas_node {
+ struct device *parent_dev;
+ struct list_head port_list_head;
+};
+
+struct pqi_sas_port {
+ struct list_head port_list_entry;
+ u64 sas_address;
+ struct sas_port *port;
+ int next_phy_index;
+ struct list_head phy_list_head;
+ struct pqi_sas_node *parent_node;
+ struct sas_rphy *rphy;
+};
+
+struct pqi_sas_phy {
+ struct list_head phy_list_entry;
+ struct sas_phy *phy;
+ struct pqi_sas_port *parent_port;
+ bool added_to_port;
+};
+
+struct pqi_io_request {
+ atomic_t refcount;
+ u16 index;
+ void (*io_complete_callback)(struct pqi_io_request *io_request,
+ void *context);
+ void *context;
+ int status;
+ struct scsi_cmnd *scmd;
+ void *error_info;
+ struct pqi_sg_descriptor *sg_chain_buffer;
+ dma_addr_t sg_chain_buffer_dma_handle;
+ void *iu;
+ struct list_head request_list_entry;
+};
+
+/* for indexing into the pending_events[] field of struct pqi_ctrl_info */
+#define PQI_EVENT_HEARTBEAT 0
+#define PQI_EVENT_HOTPLUG 1
+#define PQI_EVENT_HARDWARE 2
+#define PQI_EVENT_PHYSICAL_DEVICE 3
+#define PQI_EVENT_LOGICAL_DEVICE 4
+#define PQI_EVENT_AIO_STATE_CHANGE 5
+#define PQI_EVENT_AIO_CONFIG_CHANGE 6
+#define PQI_NUM_SUPPORTED_EVENTS 7
+
+struct pqi_event {
+ bool pending;
+ u8 event_type;
+ __le16 event_id;
+ __le32 additional_event_id;
+};
+
+#define PQI_RESERVED_IO_SLOTS_LUN_RESET 1
+#define PQI_RESERVED_IO_SLOTS_EVENT_ACK PQI_NUM_SUPPORTED_EVENTS
+#define PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS 3
+#define PQI_RESERVED_IO_SLOTS \
+ (PQI_RESERVED_IO_SLOTS_LUN_RESET + PQI_RESERVED_IO_SLOTS_EVENT_ACK + \
+ PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS)
+
+struct pqi_ctrl_info {
+ unsigned int ctrl_id;
+ struct pci_dev *pci_dev;
+ char firmware_version[11];
+ void __iomem *iomem_base;
+ struct pqi_ctrl_registers __iomem *registers;
+ struct pqi_device_registers __iomem *pqi_registers;
+ u32 max_sg_entries;
+ u32 config_table_offset;
+ u32 config_table_length;
+ u16 max_inbound_queues;
+ u16 max_elements_per_iq;
+ u16 max_iq_element_length;
+ u16 max_outbound_queues;
+ u16 max_elements_per_oq;
+ u16 max_oq_element_length;
+ u32 max_transfer_size;
+ u32 max_outstanding_requests;
+ u32 max_io_slots;
+ unsigned int scsi_ml_can_queue;
+ unsigned short sg_tablesize;
+ unsigned int max_sectors;
+ u32 error_buffer_length;
+ void *error_buffer;
+ dma_addr_t error_buffer_dma_handle;
+ size_t sg_chain_buffer_length;
+ unsigned int num_queue_groups;
+ unsigned int num_active_queue_groups;
+ u16 num_elements_per_iq;
+ u16 num_elements_per_oq;
+ u16 max_inbound_iu_length_per_firmware;
+ u16 max_inbound_iu_length;
+ unsigned int max_sg_per_iu;
+ void *admin_queue_memory_base;
+ u32 admin_queue_memory_length;
+ dma_addr_t admin_queue_memory_base_dma_handle;
+ void *queue_memory_base;
+ u32 queue_memory_length;
+ dma_addr_t queue_memory_base_dma_handle;
+ struct pqi_admin_queues admin_queues;
+ struct pqi_queue_group queue_groups[PQI_MAX_QUEUE_GROUPS];
+ struct pqi_event_queue event_queue;
+ int max_msix_vectors;
+ int num_msix_vectors_enabled;
+ int num_msix_vectors_initialized;
+ u32 msix_vectors[PQI_MAX_MSIX_VECTORS];
+ void *intr_data[PQI_MAX_MSIX_VECTORS];
+ int event_irq;
+ struct Scsi_Host *scsi_host;
+
+ struct mutex scan_mutex;
+ u8 inbound_spanning_supported : 1;
+ u8 outbound_spanning_supported : 1;
+ u8 pqi_mode_enabled : 1;
+ u8 controller_online : 1;
+ u8 heartbeat_timer_started : 1;
+
+ struct list_head scsi_device_list;
+ spinlock_t scsi_device_list_lock;
+
+ struct delayed_work rescan_work;
+ struct delayed_work update_time_work;
+
+ struct pqi_sas_node *sas_host;
+ u64 sas_address;
+
+ struct pqi_io_request *io_request_pool;
+ u16 next_io_request_slot;
+
+ struct pqi_event pending_events[PQI_NUM_SUPPORTED_EVENTS];
+ struct work_struct event_work;
+
+ atomic_t num_interrupts;
+ int previous_num_interrupts;
+ unsigned int num_heartbeats_requested;
+ struct timer_list heartbeat_timer;
+
+ struct semaphore sync_request_sem;
+ struct semaphore lun_reset_sem;
+};
+
+enum pqi_ctrl_mode {
+ UNKNOWN,
+ PQI_MODE
+};
+
+/*
+ * assume worst case: SATA queue depth of 31 minus 4 internal firmware commands
+ */
+#define PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH 27
+
+/* 0 = no limit */
+#define PQI_LOGICAL_DRIVE_DEFAULT_MAX_QUEUE_DEPTH 0
+
+/* CISS commands */
+#define CISS_READ 0xc0
+#define CISS_REPORT_LOG 0xc2 /* Report Logical LUNs */
+#define CISS_REPORT_PHYS 0xc3 /* Report Physical LUNs */
+#define CISS_GET_RAID_MAP 0xc8
+
+/* constants for CISS_REPORT_LOG/CISS_REPORT_PHYS commands */
+#define CISS_REPORT_LOG_EXTENDED 0x1
+#define CISS_REPORT_PHYS_EXTENDED 0x2
+
+/* BMIC commands */
+#define BMIC_IDENTIFY_CONTROLLER 0x11
+#define BMIC_IDENTIFY_PHYSICAL_DEVICE 0x15
+#define BMIC_READ 0x26
+#define BMIC_WRITE 0x27
+#define BMIC_SENSE_CONTROLLER_PARAMETERS 0x64
+#define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66
+#define BMIC_WRITE_HOST_WELLNESS 0xa5
+#define BMIC_CACHE_FLUSH 0xc2
+
+#define SA_CACHE_FLUSH 0x01
+
+#define MASKED_DEVICE(lunid) ((lunid)[3] & 0xc0)
+#define CISS_GET_BUS(lunid) ((lunid)[7] & 0x3f)
+#define CISS_GET_LEVEL_2_TARGET(lunid) ((lunid)[6])
+#define CISS_GET_DRIVE_NUMBER(lunid) \
+ (((CISS_GET_BUS((lunid)) - 1) << 8) + \
+ CISS_GET_LEVEL_2_TARGET((lunid)))
+
+#define NO_TIMEOUT ((unsigned long) -1)
+
+#pragma pack(1)
+
+struct bmic_identify_controller {
+ u8 configured_logical_drive_count;
+ __le32 configuration_signature;
+ u8 firmware_version[4];
+ u8 reserved[145];
+ __le16 extended_logical_unit_count;
+ u8 reserved1[34];
+ __le16 firmware_build_number;
+ u8 reserved2[100];
+ u8 controller_mode;
+ u8 reserved3[32];
+};
+
+struct bmic_identify_physical_device {
+ u8 scsi_bus; /* SCSI Bus number on controller */
+ u8 scsi_id; /* SCSI ID on this bus */
+ __le16 block_size; /* sector size in bytes */
+ __le32 total_blocks; /* number for sectors on drive */
+ __le32 reserved_blocks; /* controller reserved (RIS) */
+ u8 model[40]; /* Physical Drive Model */
+ u8 serial_number[40]; /* Drive Serial Number */
+ u8 firmware_revision[8]; /* drive firmware revision */
+ u8 scsi_inquiry_bits; /* inquiry byte 7 bits */
+ u8 compaq_drive_stamp; /* 0 means drive not stamped */
+ u8 last_failure_reason;
+ u8 flags;
+ u8 more_flags;
+ u8 scsi_lun; /* SCSI LUN for phys drive */
+ u8 yet_more_flags;
+ u8 even_more_flags;
+ __le32 spi_speed_rules;
+ u8 phys_connector[2]; /* connector number on controller */
+ u8 phys_box_on_bus; /* phys enclosure this drive resides */
+ u8 phys_bay_in_box; /* phys drv bay this drive resides */
+ __le32 rpm; /* drive rotational speed in RPM */
+ u8 device_type; /* type of drive */
+ u8 sata_version; /* only valid when device_type = */
+ /* BMIC_DEVICE_TYPE_SATA */
+ __le64 big_total_block_count;
+ __le64 ris_starting_lba;
+ __le32 ris_size;
+ u8 wwid[20];
+ u8 controller_phy_map[32];
+ __le16 phy_count;
+ u8 phy_connected_dev_type[256];
+ u8 phy_to_drive_bay_num[256];
+ __le16 phy_to_attached_dev_index[256];
+ u8 box_index;
+ u8 reserved;
+ __le16 extra_physical_drive_flags;
+ u8 negotiated_link_rate[256];
+ u8 phy_to_phy_map[256];
+ u8 redundant_path_present_map;
+ u8 redundant_path_failure_map;
+ u8 active_path_number;
+ __le16 alternate_paths_phys_connector[8];
+ u8 alternate_paths_phys_box_on_port[8];
+ u8 multi_lun_device_lun_count;
+ u8 minimum_good_fw_revision[8];
+ u8 unique_inquiry_bytes[20];
+ u8 current_temperature_degreesC;
+ u8 temperature_threshold_degreesC;
+ u8 max_temperature_degreesC;
+ u8 logical_blocks_per_phys_block_exp;
+ __le16 current_queue_depth_limit;
+ u8 switch_name[10];
+ __le16 switch_port;
+ u8 alternate_paths_switch_name[40];
+ u8 alternate_paths_switch_port[8];
+ __le16 power_on_hours;
+ __le16 percent_endurance_used;
+ u8 drive_authentication;
+ u8 smart_carrier_authentication;
+ u8 smart_carrier_app_fw_version;
+ u8 smart_carrier_bootloader_fw_version;
+ u8 encryption_key_name[64];
+ __le32 misc_drive_flags;
+ __le16 dek_index;
+ u8 padding[112];
+};
+
+#pragma pack()
+
+int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info);
+void pqi_delete_sas_host(struct pqi_ctrl_info *ctrl_info);
+int pqi_add_sas_device(struct pqi_sas_node *pqi_sas_node,
+ struct pqi_scsi_dev *device);
+void pqi_remove_sas_device(struct pqi_scsi_dev *device);
+struct pqi_scsi_dev *pqi_find_device_by_sas_rphy(
+ struct pqi_ctrl_info *ctrl_info, struct sas_rphy *rphy);
+
+extern struct sas_function_template pqi_sas_transport_functions;
+
+#if !defined(readq)
+#define readq readq
+static inline u64 readq(const volatile void __iomem *addr)
+{
+ u32 lower32;
+ u32 upper32;
+
+ lower32 = readl(addr);
+ upper32 = readl(addr + 4);
+
+ return ((u64)upper32 << 32) | lower32;
+}
+#endif
+
+#if !defined(writeq)
+#define writeq writeq
+static inline void writeq(u64 value, volatile void __iomem *addr)
+{
+ u32 lower32;
+ u32 upper32;
+
+ lower32 = lower_32_bits(value);
+ upper32 = upper_32_bits(value);
+
+ writel(lower32, addr);
+ writel(upper32, addr + 4);
+}
+#endif
+
+#endif /* _SMARTPQI_H */
--- /dev/null
+/*
+ * driver for Microsemi PQI-based storage controllers
+ * Copyright (c) 2016 Microsemi Corporation
+ * Copyright (c) 2016 PMC-Sierra, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more details.
+ *
+ * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/cciss_ioctl.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_transport_sas.h>
+#include <asm/unaligned.h>
+#include "smartpqi.h"
+#include "smartpqi_sis.h"
+
+#if !defined(BUILD_TIMESTAMP)
+#define BUILD_TIMESTAMP
+#endif
+
+#define DRIVER_VERSION "0.9.13-370"
+#define DRIVER_MAJOR 0
+#define DRIVER_MINOR 9
+#define DRIVER_RELEASE 13
+#define DRIVER_REVISION 370
+
+#define DRIVER_NAME "Microsemi PQI Driver (v" DRIVER_VERSION ")"
+#define DRIVER_NAME_SHORT "smartpqi"
+
+MODULE_AUTHOR("Microsemi");
+MODULE_DESCRIPTION("Driver for Microsemi Smart Family Controller version "
+ DRIVER_VERSION);
+MODULE_SUPPORTED_DEVICE("Microsemi Smart Family Controllers");
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
+
+#define PQI_ENABLE_MULTI_QUEUE_SUPPORT 0
+
+static char *hpe_branded_controller = "HPE Smart Array Controller";
+static char *microsemi_branded_controller = "Microsemi Smart Family Controller";
+
+static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info);
+static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
+static void pqi_scan_start(struct Scsi_Host *shost);
+static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_queue_group *queue_group, enum pqi_io_path path,
+ struct pqi_io_request *io_request);
+static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_iu_header *request, unsigned int flags,
+ struct pqi_raid_error_info *error_info, unsigned long timeout_msecs);
+static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
+ struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
+ unsigned int cdb_length, struct pqi_queue_group *queue_group,
+ struct pqi_encryption_info *encryption_info);
+
+/* for flags argument to pqi_submit_raid_request_synchronous() */
+#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1
+
+static struct scsi_transport_template *pqi_sas_transport_template;
+
+static atomic_t pqi_controller_count = ATOMIC_INIT(0);
+
+static int pqi_disable_device_id_wildcards;
+module_param_named(disable_device_id_wildcards,
+ pqi_disable_device_id_wildcards, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(disable_device_id_wildcards,
+ "Disable device ID wildcards.");
+
+static char *raid_levels[] = {
+ "RAID-0",
+ "RAID-4",
+ "RAID-1(1+0)",
+ "RAID-5",
+ "RAID-5+1",
+ "RAID-ADG",
+ "RAID-1(ADM)",
+};
+
+static char *pqi_raid_level_to_string(u8 raid_level)
+{
+ if (raid_level < ARRAY_SIZE(raid_levels))
+ return raid_levels[raid_level];
+
+ return "";
+}
+
+#define SA_RAID_0 0
+#define SA_RAID_4 1
+#define SA_RAID_1 2 /* also used for RAID 10 */
+#define SA_RAID_5 3 /* also used for RAID 50 */
+#define SA_RAID_51 4
+#define SA_RAID_6 5 /* also used for RAID 60 */
+#define SA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
+#define SA_RAID_MAX SA_RAID_ADM
+#define SA_RAID_UNKNOWN 0xff
+
+static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
+{
+ scmd->scsi_done(scmd);
+}
+
+static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
+{
+ return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
+}
+
+static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost)
+{
+ void *hostdata = shost_priv(shost);
+
+ return *((struct pqi_ctrl_info **)hostdata);
+}
+
+static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
+{
+ return !device->is_physical_device;
+}
+
+static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
+{
+ return !ctrl_info->controller_online;
+}
+
+static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
+{
+ if (ctrl_info->controller_online)
+ if (!sis_is_firmware_running(ctrl_info))
+ pqi_take_ctrl_offline(ctrl_info);
+}
+
+static inline bool pqi_is_hba_lunid(u8 *scsi3addr)
+{
+ return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID);
+}
+
+static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(
+ struct pqi_ctrl_info *ctrl_info)
+{
+ return sis_read_driver_scratch(ctrl_info);
+}
+
+static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
+ enum pqi_ctrl_mode mode)
+{
+ sis_write_driver_scratch(ctrl_info, mode);
+}
+
+#define PQI_RESCAN_WORK_INTERVAL (10 * HZ)
+
+static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info)
+{
+ schedule_delayed_work(&ctrl_info->rescan_work,
+ PQI_RESCAN_WORK_INTERVAL);
+}
+
+static int pqi_map_single(struct pci_dev *pci_dev,
+ struct pqi_sg_descriptor *sg_descriptor, void *buffer,
+ size_t buffer_length, int data_direction)
+{
+ dma_addr_t bus_address;
+
+ if (!buffer || buffer_length == 0 || data_direction == PCI_DMA_NONE)
+ return 0;
+
+ bus_address = pci_map_single(pci_dev, buffer, buffer_length,
+ data_direction);
+ if (pci_dma_mapping_error(pci_dev, bus_address))
+ return -ENOMEM;
+
+ put_unaligned_le64((u64)bus_address, &sg_descriptor->address);
+ put_unaligned_le32(buffer_length, &sg_descriptor->length);
+ put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
+
+ return 0;
+}
+
+static void pqi_pci_unmap(struct pci_dev *pci_dev,
+ struct pqi_sg_descriptor *descriptors, int num_descriptors,
+ int data_direction)
+{
+ int i;
+
+ if (data_direction == PCI_DMA_NONE)
+ return;
+
+ for (i = 0; i < num_descriptors; i++)
+ pci_unmap_single(pci_dev,
+ (dma_addr_t)get_unaligned_le64(&descriptors[i].address),
+ get_unaligned_le32(&descriptors[i].length),
+ data_direction);
+}
+
+static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_raid_path_request *request, u8 cmd,
+ u8 *scsi3addr, void *buffer, size_t buffer_length,
+ u16 vpd_page, int *pci_direction)
+{
+ u8 *cdb;
+ int pci_dir;
+
+ memset(request, 0, sizeof(*request));
+
+ request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
+ put_unaligned_le16(offsetof(struct pqi_raid_path_request,
+ sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH,
+ &request->header.iu_length);
+ put_unaligned_le32(buffer_length, &request->buffer_length);
+ memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
+ request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
+ request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
+
+ cdb = request->cdb;
+
+ switch (cmd) {
+ case INQUIRY:
+ request->data_direction = SOP_READ_FLAG;
+ cdb[0] = INQUIRY;
+ if (vpd_page & VPD_PAGE) {
+ cdb[1] = 0x1;
+ cdb[2] = (u8)vpd_page;
+ }
+ cdb[4] = (u8)buffer_length;
+ break;
+ case CISS_REPORT_LOG:
+ case CISS_REPORT_PHYS:
+ request->data_direction = SOP_READ_FLAG;
+ cdb[0] = cmd;
+ if (cmd == CISS_REPORT_PHYS)
+ cdb[1] = CISS_REPORT_PHYS_EXTENDED;
+ else
+ cdb[1] = CISS_REPORT_LOG_EXTENDED;
+ put_unaligned_be32(buffer_length, &cdb[6]);
+ break;
+ case CISS_GET_RAID_MAP:
+ request->data_direction = SOP_READ_FLAG;
+ cdb[0] = CISS_READ;
+ cdb[1] = CISS_GET_RAID_MAP;
+ put_unaligned_be32(buffer_length, &cdb[6]);
+ break;
+ case SA_CACHE_FLUSH:
+ request->data_direction = SOP_WRITE_FLAG;
+ cdb[0] = BMIC_WRITE;
+ cdb[6] = BMIC_CACHE_FLUSH;
+ put_unaligned_be16(buffer_length, &cdb[7]);
+ break;
+ case BMIC_IDENTIFY_CONTROLLER:
+ case BMIC_IDENTIFY_PHYSICAL_DEVICE:
+ request->data_direction = SOP_READ_FLAG;
+ cdb[0] = BMIC_READ;
+ cdb[6] = cmd;
+ put_unaligned_be16(buffer_length, &cdb[7]);
+ break;
+ case BMIC_WRITE_HOST_WELLNESS:
+ request->data_direction = SOP_WRITE_FLAG;
+ cdb[0] = BMIC_WRITE;
+ cdb[6] = cmd;
+ put_unaligned_be16(buffer_length, &cdb[7]);
+ break;
+ default:
+ dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n",
+ cmd);
+ WARN_ON(cmd);
+ break;
+ }
+
+ switch (request->data_direction) {
+ case SOP_READ_FLAG:
+ pci_dir = PCI_DMA_FROMDEVICE;
+ break;
+ case SOP_WRITE_FLAG:
+ pci_dir = PCI_DMA_TODEVICE;
+ break;
+ case SOP_NO_DIRECTION_FLAG:
+ pci_dir = PCI_DMA_NONE;
+ break;
+ default:
+ pci_dir = PCI_DMA_BIDIRECTIONAL;
+ break;
+ }
+
+ *pci_direction = pci_dir;
+
+ return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0],
+ buffer, buffer_length, pci_dir);
+}
+
+static struct pqi_io_request *pqi_alloc_io_request(
+ struct pqi_ctrl_info *ctrl_info)
+{
+ struct pqi_io_request *io_request;
+ u16 i = ctrl_info->next_io_request_slot; /* benignly racy */
+
+ while (1) {
+ io_request = &ctrl_info->io_request_pool[i];
+ if (atomic_inc_return(&io_request->refcount) == 1)
+ break;
+ atomic_dec(&io_request->refcount);
+ i = (i + 1) % ctrl_info->max_io_slots;
+ }
+
+ /* benignly racy */
+ ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots;
+
+ io_request->scmd = NULL;
+ io_request->status = 0;
+ io_request->error_info = NULL;
+
+ return io_request;
+}
+
+static void pqi_free_io_request(struct pqi_io_request *io_request)
+{
+ atomic_dec(&io_request->refcount);
+}
+
+static int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
+ struct bmic_identify_controller *buffer)
+{
+ int rc;
+ int pci_direction;
+ struct pqi_raid_path_request request;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ BMIC_IDENTIFY_CONTROLLER, RAID_CTLR_LUNID, buffer,
+ sizeof(*buffer), 0, &pci_direction);
+ if (rc)
+ return rc;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
+ NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+ return rc;
+}
+
+static int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
+ u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
+{
+ int rc;
+ int pci_direction;
+ struct pqi_raid_path_request request;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ INQUIRY, scsi3addr, buffer, buffer_length, vpd_page,
+ &pci_direction);
+ if (rc)
+ return rc;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
+ NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+ return rc;
+}
+
+static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device,
+ struct bmic_identify_physical_device *buffer,
+ size_t buffer_length)
+{
+ int rc;
+ int pci_direction;
+ u16 bmic_device_index;
+ struct pqi_raid_path_request request;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer,
+ buffer_length, 0, &pci_direction);
+ if (rc)
+ return rc;
+
+ bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr);
+ request.cdb[2] = (u8)bmic_device_index;
+ request.cdb[9] = (u8)(bmic_device_index >> 8);
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
+ 0, NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+ return rc;
+}
+
+#define SA_CACHE_FLUSH_BUFFER_LENGTH 4
+
+static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct pqi_raid_path_request request;
+ int pci_direction;
+ u8 *buffer;
+
+ /*
+ * Don't bother trying to flush the cache if the controller is
+ * locked up.
+ */
+ if (pqi_ctrl_offline(ctrl_info))
+ return -ENXIO;
+
+ buffer = kzalloc(SA_CACHE_FLUSH_BUFFER_LENGTH, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ SA_CACHE_FLUSH, RAID_CTLR_LUNID, buffer,
+ SA_CACHE_FLUSH_BUFFER_LENGTH, 0, &pci_direction);
+ if (rc)
+ goto out;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
+ 0, NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+out:
+ kfree(buffer);
+
+ return rc;
+}
+
+static int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info,
+ void *buffer, size_t buffer_length)
+{
+ int rc;
+ struct pqi_raid_path_request request;
+ int pci_direction;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ BMIC_WRITE_HOST_WELLNESS, RAID_CTLR_LUNID, buffer,
+ buffer_length, 0, &pci_direction);
+ if (rc)
+ return rc;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
+ 0, NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+ return rc;
+}
+
+#pragma pack(1)
+
+struct bmic_host_wellness_driver_version {
+ u8 start_tag[4];
+ u8 driver_version_tag[2];
+ __le16 driver_version_length;
+ char driver_version[32];
+ u8 end_tag[2];
+};
+
+#pragma pack()
+
+static int pqi_write_driver_version_to_host_wellness(
+ struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct bmic_host_wellness_driver_version *buffer;
+ size_t buffer_length;
+
+ buffer_length = sizeof(*buffer);
+
+ buffer = kmalloc(buffer_length, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ buffer->start_tag[0] = '<';
+ buffer->start_tag[1] = 'H';
+ buffer->start_tag[2] = 'W';
+ buffer->start_tag[3] = '>';
+ buffer->driver_version_tag[0] = 'D';
+ buffer->driver_version_tag[1] = 'V';
+ put_unaligned_le16(sizeof(buffer->driver_version),
+ &buffer->driver_version_length);
+ strncpy(buffer->driver_version, DRIVER_VERSION,
+ sizeof(buffer->driver_version) - 1);
+ buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0';
+ buffer->end_tag[0] = 'Z';
+ buffer->end_tag[1] = 'Z';
+
+ rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
+
+ kfree(buffer);
+
+ return rc;
+}
+
+#pragma pack(1)
+
+struct bmic_host_wellness_time {
+ u8 start_tag[4];
+ u8 time_tag[2];
+ __le16 time_length;
+ u8 time[8];
+ u8 dont_write_tag[2];
+ u8 end_tag[2];
+};
+
+#pragma pack()
+
+static int pqi_write_current_time_to_host_wellness(
+ struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct bmic_host_wellness_time *buffer;
+ size_t buffer_length;
+ time64_t local_time;
+ unsigned int year;
+ struct timeval time;
+ struct rtc_time tm;
+
+ buffer_length = sizeof(*buffer);
+
+ buffer = kmalloc(buffer_length, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ buffer->start_tag[0] = '<';
+ buffer->start_tag[1] = 'H';
+ buffer->start_tag[2] = 'W';
+ buffer->start_tag[3] = '>';
+ buffer->time_tag[0] = 'T';
+ buffer->time_tag[1] = 'D';
+ put_unaligned_le16(sizeof(buffer->time),
+ &buffer->time_length);
+
+ do_gettimeofday(&time);
+ local_time = time.tv_sec - (sys_tz.tz_minuteswest * 60);
+ rtc_time64_to_tm(local_time, &tm);
+ year = tm.tm_year + 1900;
+
+ buffer->time[0] = bin2bcd(tm.tm_hour);
+ buffer->time[1] = bin2bcd(tm.tm_min);
+ buffer->time[2] = bin2bcd(tm.tm_sec);
+ buffer->time[3] = 0;
+ buffer->time[4] = bin2bcd(tm.tm_mon + 1);
+ buffer->time[5] = bin2bcd(tm.tm_mday);
+ buffer->time[6] = bin2bcd(year / 100);
+ buffer->time[7] = bin2bcd(year % 100);
+
+ buffer->dont_write_tag[0] = 'D';
+ buffer->dont_write_tag[1] = 'W';
+ buffer->end_tag[0] = 'Z';
+ buffer->end_tag[1] = 'Z';
+
+ rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
+
+ kfree(buffer);
+
+ return rc;
+}
+
+#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ)
+
+static void pqi_update_time_worker(struct work_struct *work)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
+ update_time_work);
+
+ rc = pqi_write_current_time_to_host_wellness(ctrl_info);
+ if (rc)
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "error updating time on controller\n");
+
+ schedule_delayed_work(&ctrl_info->update_time_work,
+ PQI_UPDATE_TIME_WORK_INTERVAL);
+}
+
+static inline void pqi_schedule_update_time_worker(
+ struct pqi_ctrl_info *ctrl_info)
+{
+ schedule_delayed_work(&ctrl_info->update_time_work, 0);
+}
+
+static int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd,
+ void *buffer, size_t buffer_length)
+{
+ int rc;
+ int pci_direction;
+ struct pqi_raid_path_request request;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ cmd, RAID_CTLR_LUNID, buffer, buffer_length, 0, &pci_direction);
+ if (rc)
+ return rc;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
+ NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+ return rc;
+}
+
+static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd,
+ void **buffer)
+{
+ int rc;
+ size_t lun_list_length;
+ size_t lun_data_length;
+ size_t new_lun_list_length;
+ void *lun_data = NULL;
+ struct report_lun_header *report_lun_header;
+
+ report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL);
+ if (!report_lun_header) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ rc = pqi_report_luns(ctrl_info, cmd, report_lun_header,
+ sizeof(*report_lun_header));
+ if (rc)
+ goto out;
+
+ lun_list_length = get_unaligned_be32(&report_lun_header->list_length);
+
+again:
+ lun_data_length = sizeof(struct report_lun_header) + lun_list_length;
+
+ lun_data = kmalloc(lun_data_length, GFP_KERNEL);
+ if (!lun_data) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (lun_list_length == 0) {
+ memcpy(lun_data, report_lun_header, sizeof(*report_lun_header));
+ goto out;
+ }
+
+ rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length);
+ if (rc)
+ goto out;
+
+ new_lun_list_length = get_unaligned_be32(
+ &((struct report_lun_header *)lun_data)->list_length);
+
+ if (new_lun_list_length > lun_list_length) {
+ lun_list_length = new_lun_list_length;
+ kfree(lun_data);
+ goto again;
+ }
+
+out:
+ kfree(report_lun_header);
+
+ if (rc) {
+ kfree(lun_data);
+ lun_data = NULL;
+ }
+
+ *buffer = lun_data;
+
+ return rc;
+}
+
+static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info,
+ void **buffer)
+{
+ return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS,
+ buffer);
+}
+
+static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info,
+ void **buffer)
+{
+ return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer);
+}
+
+static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info,
+ struct report_phys_lun_extended **physdev_list,
+ struct report_log_lun_extended **logdev_list)
+{
+ int rc;
+ size_t logdev_list_length;
+ size_t logdev_data_length;
+ struct report_log_lun_extended *internal_logdev_list;
+ struct report_log_lun_extended *logdev_data;
+ struct report_lun_header report_lun_header;
+
+ rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list);
+ if (rc)
+ dev_err(&ctrl_info->pci_dev->dev,
+ "report physical LUNs failed\n");
+
+ rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list);
+ if (rc)
+ dev_err(&ctrl_info->pci_dev->dev,
+ "report logical LUNs failed\n");
+
+ /*
+ * Tack the controller itself onto the end of the logical device list.
+ */
+
+ logdev_data = *logdev_list;
+
+ if (logdev_data) {
+ logdev_list_length =
+ get_unaligned_be32(&logdev_data->header.list_length);
+ } else {
+ memset(&report_lun_header, 0, sizeof(report_lun_header));
+ logdev_data =
+ (struct report_log_lun_extended *)&report_lun_header;
+ logdev_list_length = 0;
+ }
+
+ logdev_data_length = sizeof(struct report_lun_header) +
+ logdev_list_length;
+
+ internal_logdev_list = kmalloc(logdev_data_length +
+ sizeof(struct report_log_lun_extended), GFP_KERNEL);
+ if (!internal_logdev_list) {
+ kfree(*logdev_list);
+ *logdev_list = NULL;
+ return -ENOMEM;
+ }
+
+ memcpy(internal_logdev_list, logdev_data, logdev_data_length);
+ memset((u8 *)internal_logdev_list + logdev_data_length, 0,
+ sizeof(struct report_log_lun_extended_entry));
+ put_unaligned_be32(logdev_list_length +
+ sizeof(struct report_log_lun_extended_entry),
+ &internal_logdev_list->header.list_length);
+
+ kfree(*logdev_list);
+ *logdev_list = internal_logdev_list;
+
+ return 0;
+}
+
+static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device,
+ int bus, int target, int lun)
+{
+ device->bus = bus;
+ device->target = target;
+ device->lun = lun;
+}
+
+static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device)
+{
+ u8 *scsi3addr;
+ u32 lunid;
+
+ scsi3addr = device->scsi3addr;
+ lunid = get_unaligned_le32(scsi3addr);
+
+ if (pqi_is_hba_lunid(scsi3addr)) {
+ /* The specified device is the controller. */
+ pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff);
+ device->target_lun_valid = true;
+ return;
+ }
+
+ if (pqi_is_logical_device(device)) {
+ pqi_set_bus_target_lun(device, PQI_RAID_VOLUME_BUS, 0,
+ lunid & 0x3fff);
+ device->target_lun_valid = true;
+ return;
+ }
+
+ /*
+ * Defer target and LUN assignment for non-controller physical devices
+ * because the SAS transport layer will make these assignments later.
+ */
+ pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0);
+}
+
+static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ u8 raid_level;
+ u8 *buffer;
+
+ raid_level = SA_RAID_UNKNOWN;
+
+ buffer = kmalloc(64, GFP_KERNEL);
+ if (buffer) {
+ rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
+ VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64);
+ if (rc == 0) {
+ raid_level = buffer[8];
+ if (raid_level > SA_RAID_MAX)
+ raid_level = SA_RAID_UNKNOWN;
+ }
+ kfree(buffer);
+ }
+
+ device->raid_level = raid_level;
+}
+
+static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct raid_map *raid_map)
+{
+ char *err_msg;
+ u32 raid_map_size;
+ u32 r5or6_blocks_per_row;
+ unsigned int num_phys_disks;
+ unsigned int num_raid_map_entries;
+
+ raid_map_size = get_unaligned_le32(&raid_map->structure_size);
+
+ if (raid_map_size < offsetof(struct raid_map, disk_data)) {
+ err_msg = "RAID map too small";
+ goto bad_raid_map;
+ }
+
+ if (raid_map_size > sizeof(*raid_map)) {
+ err_msg = "RAID map too large";
+ goto bad_raid_map;
+ }
+
+ num_phys_disks = get_unaligned_le16(&raid_map->layout_map_count) *
+ (get_unaligned_le16(&raid_map->data_disks_per_row) +
+ get_unaligned_le16(&raid_map->metadata_disks_per_row));
+ num_raid_map_entries = num_phys_disks *
+ get_unaligned_le16(&raid_map->row_cnt);
+
+ if (num_raid_map_entries > RAID_MAP_MAX_ENTRIES) {
+ err_msg = "invalid number of map entries in RAID map";
+ goto bad_raid_map;
+ }
+
+ if (device->raid_level == SA_RAID_1) {
+ if (get_unaligned_le16(&raid_map->layout_map_count) != 2) {
+ err_msg = "invalid RAID-1 map";
+ goto bad_raid_map;
+ }
+ } else if (device->raid_level == SA_RAID_ADM) {
+ if (get_unaligned_le16(&raid_map->layout_map_count) != 3) {
+ err_msg = "invalid RAID-1(ADM) map";
+ goto bad_raid_map;
+ }
+ } else if ((device->raid_level == SA_RAID_5 ||
+ device->raid_level == SA_RAID_6) &&
+ get_unaligned_le16(&raid_map->layout_map_count) > 1) {
+ /* RAID 50/60 */
+ r5or6_blocks_per_row =
+ get_unaligned_le16(&raid_map->strip_size) *
+ get_unaligned_le16(&raid_map->data_disks_per_row);
+ if (r5or6_blocks_per_row == 0) {
+ err_msg = "invalid RAID-5 or RAID-6 map";
+ goto bad_raid_map;
+ }
+ }
+
+ return 0;
+
+bad_raid_map:
+ dev_warn(&ctrl_info->pci_dev->dev, "%s\n", err_msg);
+
+ return -EINVAL;
+}
+
+static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ int pci_direction;
+ struct pqi_raid_path_request request;
+ struct raid_map *raid_map;
+
+ raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL);
+ if (!raid_map)
+ return -ENOMEM;
+
+ rc = pqi_build_raid_path_request(ctrl_info, &request,
+ CISS_GET_RAID_MAP, device->scsi3addr, raid_map,
+ sizeof(*raid_map), 0, &pci_direction);
+ if (rc)
+ goto error;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
+ NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ pci_direction);
+
+ if (rc)
+ goto error;
+
+ rc = pqi_validate_raid_map(ctrl_info, device, raid_map);
+ if (rc)
+ goto error;
+
+ device->raid_map = raid_map;
+
+ return 0;
+
+error:
+ kfree(raid_map);
+
+ return rc;
+}
+
+static void pqi_get_offload_status(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ u8 *buffer;
+ u8 offload_status;
+
+ buffer = kmalloc(64, GFP_KERNEL);
+ if (!buffer)
+ return;
+
+ rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
+ VPD_PAGE | CISS_VPD_LV_OFFLOAD_STATUS, buffer, 64);
+ if (rc)
+ goto out;
+
+#define OFFLOAD_STATUS_BYTE 4
+#define OFFLOAD_CONFIGURED_BIT 0x1
+#define OFFLOAD_ENABLED_BIT 0x2
+
+ offload_status = buffer[OFFLOAD_STATUS_BYTE];
+ device->offload_configured =
+ !!(offload_status & OFFLOAD_CONFIGURED_BIT);
+ if (device->offload_configured) {
+ device->offload_enabled_pending =
+ !!(offload_status & OFFLOAD_ENABLED_BIT);
+ if (pqi_get_raid_map(ctrl_info, device))
+ device->offload_enabled_pending = false;
+ }
+
+out:
+ kfree(buffer);
+}
+
+/*
+ * Use vendor-specific VPD to determine online/offline status of a volume.
+ */
+
+static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ size_t page_length;
+ u8 volume_status = CISS_LV_STATUS_UNAVAILABLE;
+ bool volume_offline = true;
+ u32 volume_flags;
+ struct ciss_vpd_logical_volume_status *vpd;
+
+ vpd = kmalloc(sizeof(*vpd), GFP_KERNEL);
+ if (!vpd)
+ goto no_buffer;
+
+ rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
+ VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd));
+ if (rc)
+ goto out;
+
+ page_length = offsetof(struct ciss_vpd_logical_volume_status,
+ volume_status) + vpd->page_length;
+ if (page_length < sizeof(*vpd))
+ goto out;
+
+ volume_status = vpd->volume_status;
+ volume_flags = get_unaligned_be32(&vpd->flags);
+ volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0;
+
+out:
+ kfree(vpd);
+no_buffer:
+ device->volume_status = volume_status;
+ device->volume_offline = volume_offline;
+}
+
+static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ u8 *buffer;
+
+ buffer = kmalloc(64, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ /* Send an inquiry to the device to see what it is. */
+ rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64);
+ if (rc)
+ goto out;
+
+ scsi_sanitize_inquiry_string(&buffer[8], 8);
+ scsi_sanitize_inquiry_string(&buffer[16], 16);
+
+ device->devtype = buffer[0] & 0x1f;
+ memcpy(device->vendor, &buffer[8],
+ sizeof(device->vendor));
+ memcpy(device->model, &buffer[16],
+ sizeof(device->model));
+
+ if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) {
+ pqi_get_raid_level(ctrl_info, device);
+ pqi_get_offload_status(ctrl_info, device);
+ pqi_get_volume_status(ctrl_info, device);
+ }
+
+out:
+ kfree(buffer);
+
+ return rc;
+}
+
+static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device,
+ struct bmic_identify_physical_device *id_phys)
+{
+ int rc;
+
+ memset(id_phys, 0, sizeof(*id_phys));
+
+ rc = pqi_identify_physical_device(ctrl_info, device,
+ id_phys, sizeof(*id_phys));
+ if (rc) {
+ device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
+ return;
+ }
+
+ device->queue_depth =
+ get_unaligned_le16(&id_phys->current_queue_depth_limit);
+ device->device_type = id_phys->device_type;
+ device->active_path_index = id_phys->active_path_number;
+ device->path_map = id_phys->redundant_path_present_map;
+ memcpy(&device->box,
+ &id_phys->alternate_paths_phys_box_on_port,
+ sizeof(device->box));
+ memcpy(&device->phys_connector,
+ &id_phys->alternate_paths_phys_connector,
+ sizeof(device->phys_connector));
+ device->bay = id_phys->phys_bay_in_box;
+}
+
+static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ char *status;
+ static const char unknown_state_str[] =
+ "Volume is in an unknown state (%u)";
+ char unknown_state_buffer[sizeof(unknown_state_str) + 10];
+
+ switch (device->volume_status) {
+ case CISS_LV_OK:
+ status = "Volume online";
+ break;
+ case CISS_LV_FAILED:
+ status = "Volume failed";
+ break;
+ case CISS_LV_NOT_CONFIGURED:
+ status = "Volume not configured";
+ break;
+ case CISS_LV_DEGRADED:
+ status = "Volume degraded";
+ break;
+ case CISS_LV_READY_FOR_RECOVERY:
+ status = "Volume ready for recovery operation";
+ break;
+ case CISS_LV_UNDERGOING_RECOVERY:
+ status = "Volume undergoing recovery";
+ break;
+ case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED:
+ status = "Wrong physical drive was replaced";
+ break;
+ case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM:
+ status = "A physical drive not properly connected";
+ break;
+ case CISS_LV_HARDWARE_OVERHEATING:
+ status = "Hardware is overheating";
+ break;
+ case CISS_LV_HARDWARE_HAS_OVERHEATED:
+ status = "Hardware has overheated";
+ break;
+ case CISS_LV_UNDERGOING_EXPANSION:
+ status = "Volume undergoing expansion";
+ break;
+ case CISS_LV_NOT_AVAILABLE:
+ status = "Volume waiting for transforming volume";
+ break;
+ case CISS_LV_QUEUED_FOR_EXPANSION:
+ status = "Volume queued for expansion";
+ break;
+ case CISS_LV_DISABLED_SCSI_ID_CONFLICT:
+ status = "Volume disabled due to SCSI ID conflict";
+ break;
+ case CISS_LV_EJECTED:
+ status = "Volume has been ejected";
+ break;
+ case CISS_LV_UNDERGOING_ERASE:
+ status = "Volume undergoing background erase";
+ break;
+ case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD:
+ status = "Volume ready for predictive spare rebuild";
+ break;
+ case CISS_LV_UNDERGOING_RPI:
+ status = "Volume undergoing rapid parity initialization";
+ break;
+ case CISS_LV_PENDING_RPI:
+ status = "Volume queued for rapid parity initialization";
+ break;
+ case CISS_LV_ENCRYPTED_NO_KEY:
+ status = "Encrypted volume inaccessible - key not present";
+ break;
+ case CISS_LV_UNDERGOING_ENCRYPTION:
+ status = "Volume undergoing encryption process";
+ break;
+ case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING:
+ status = "Volume undergoing encryption re-keying process";
+ break;
+ case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
+ status =
+ "Encrypted volume inaccessible - disabled on ctrl";
+ break;
+ case CISS_LV_PENDING_ENCRYPTION:
+ status = "Volume pending migration to encrypted state";
+ break;
+ case CISS_LV_PENDING_ENCRYPTION_REKEYING:
+ status = "Volume pending encryption rekeying";
+ break;
+ case CISS_LV_NOT_SUPPORTED:
+ status = "Volume not supported on this controller";
+ break;
+ case CISS_LV_STATUS_UNAVAILABLE:
+ status = "Volume status not available";
+ break;
+ default:
+ snprintf(unknown_state_buffer, sizeof(unknown_state_buffer),
+ unknown_state_str, device->volume_status);
+ status = unknown_state_buffer;
+ break;
+ }
+
+ dev_info(&ctrl_info->pci_dev->dev,
+ "scsi %d:%d:%d:%d %s\n",
+ ctrl_info->scsi_host->host_no,
+ device->bus, device->target, device->lun, status);
+}
+
+static struct pqi_scsi_dev *pqi_find_disk_by_aio_handle(
+ struct pqi_ctrl_info *ctrl_info, u32 aio_handle)
+{
+ struct pqi_scsi_dev *device;
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->devtype != TYPE_DISK && device->devtype != TYPE_ZBC)
+ continue;
+ if (pqi_is_logical_device(device))
+ continue;
+ if (device->aio_handle == aio_handle)
+ return device;
+ }
+
+ return NULL;
+}
+
+static void pqi_update_logical_drive_queue_depth(
+ struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *logical_drive)
+{
+ unsigned int i;
+ struct raid_map *raid_map;
+ struct raid_map_disk_data *disk_data;
+ struct pqi_scsi_dev *phys_disk;
+ unsigned int num_phys_disks;
+ unsigned int num_raid_map_entries;
+ unsigned int queue_depth;
+
+ logical_drive->queue_depth = PQI_LOGICAL_DRIVE_DEFAULT_MAX_QUEUE_DEPTH;
+
+ raid_map = logical_drive->raid_map;
+ if (!raid_map)
+ return;
+
+ disk_data = raid_map->disk_data;
+ num_phys_disks = get_unaligned_le16(&raid_map->layout_map_count) *
+ (get_unaligned_le16(&raid_map->data_disks_per_row) +
+ get_unaligned_le16(&raid_map->metadata_disks_per_row));
+ num_raid_map_entries = num_phys_disks *
+ get_unaligned_le16(&raid_map->row_cnt);
+
+ queue_depth = 0;
+ for (i = 0; i < num_raid_map_entries; i++) {
+ phys_disk = pqi_find_disk_by_aio_handle(ctrl_info,
+ disk_data[i].aio_handle);
+
+ if (!phys_disk) {
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "failed to find physical disk for logical drive %016llx\n",
+ get_unaligned_be64(logical_drive->scsi3addr));
+ logical_drive->offload_enabled = false;
+ logical_drive->offload_enabled_pending = false;
+ kfree(raid_map);
+ logical_drive->raid_map = NULL;
+ return;
+ }
+
+ queue_depth += phys_disk->queue_depth;
+ }
+
+ logical_drive->queue_depth = queue_depth;
+}
+
+static void pqi_update_all_logical_drive_queue_depths(
+ struct pqi_ctrl_info *ctrl_info)
+{
+ struct pqi_scsi_dev *device;
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->devtype != TYPE_DISK && device->devtype != TYPE_ZBC)
+ continue;
+ if (!pqi_is_logical_device(device))
+ continue;
+ pqi_update_logical_drive_queue_depth(ctrl_info, device);
+ }
+}
+
+static void pqi_rescan_worker(struct work_struct *work)
+{
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
+ rescan_work);
+
+ pqi_scan_scsi_devices(ctrl_info);
+}
+
+static int pqi_add_device(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+
+ if (pqi_is_logical_device(device))
+ rc = scsi_add_device(ctrl_info->scsi_host, device->bus,
+ device->target, device->lun);
+ else
+ rc = pqi_add_sas_device(ctrl_info->sas_host, device);
+
+ return rc;
+}
+
+static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ if (pqi_is_logical_device(device))
+ scsi_remove_device(device->sdev);
+ else
+ pqi_remove_sas_device(device);
+}
+
+/* Assumes the SCSI device list lock is held. */
+
+static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info,
+ int bus, int target, int lun)
+{
+ struct pqi_scsi_dev *device;
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry)
+ if (device->bus == bus && device->target == target &&
+ device->lun == lun)
+ return device;
+
+ return NULL;
+}
+
+static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1,
+ struct pqi_scsi_dev *dev2)
+{
+ if (dev1->is_physical_device != dev2->is_physical_device)
+ return false;
+
+ if (dev1->is_physical_device)
+ return dev1->wwid == dev2->wwid;
+
+ return memcmp(dev1->volume_id, dev2->volume_id,
+ sizeof(dev1->volume_id)) == 0;
+}
+
+enum pqi_find_result {
+ DEVICE_NOT_FOUND,
+ DEVICE_CHANGED,
+ DEVICE_SAME,
+};
+
+static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device_to_find,
+ struct pqi_scsi_dev **matching_device)
+{
+ struct pqi_scsi_dev *device;
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (pqi_scsi3addr_equal(device_to_find->scsi3addr,
+ device->scsi3addr)) {
+ *matching_device = device;
+ if (pqi_device_equal(device_to_find, device)) {
+ if (device_to_find->volume_offline)
+ return DEVICE_CHANGED;
+ return DEVICE_SAME;
+ }
+ return DEVICE_CHANGED;
+ }
+ }
+
+ return DEVICE_NOT_FOUND;
+}
+
+static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
+ char *action, struct pqi_scsi_dev *device)
+{
+ dev_info(&ctrl_info->pci_dev->dev,
+ "%s scsi %d:%d:%d:%d: %s %.8s %.16s %-12s SSDSmartPathCap%c En%c Exp%c qd=%d\n",
+ action,
+ ctrl_info->scsi_host->host_no,
+ device->bus,
+ device->target,
+ device->lun,
+ scsi_device_type(device->devtype),
+ device->vendor,
+ device->model,
+ pqi_raid_level_to_string(device->raid_level),
+ device->offload_configured ? '+' : '-',
+ device->offload_enabled_pending ? '+' : '-',
+ device->expose_device ? '+' : '-',
+ device->queue_depth);
+}
+
+/* Assumes the SCSI device list lock is held. */
+
+static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
+ struct pqi_scsi_dev *new_device)
+{
+ existing_device->devtype = new_device->devtype;
+ existing_device->device_type = new_device->device_type;
+ existing_device->bus = new_device->bus;
+ if (new_device->target_lun_valid) {
+ existing_device->target = new_device->target;
+ existing_device->lun = new_device->lun;
+ existing_device->target_lun_valid = true;
+ }
+
+ /* By definition, the scsi3addr and wwid fields are already the same. */
+
+ existing_device->is_physical_device = new_device->is_physical_device;
+ existing_device->expose_device = new_device->expose_device;
+ existing_device->no_uld_attach = new_device->no_uld_attach;
+ existing_device->aio_enabled = new_device->aio_enabled;
+ memcpy(existing_device->vendor, new_device->vendor,
+ sizeof(existing_device->vendor));
+ memcpy(existing_device->model, new_device->model,
+ sizeof(existing_device->model));
+ existing_device->sas_address = new_device->sas_address;
+ existing_device->raid_level = new_device->raid_level;
+ existing_device->queue_depth = new_device->queue_depth;
+ existing_device->aio_handle = new_device->aio_handle;
+ existing_device->volume_status = new_device->volume_status;
+ existing_device->active_path_index = new_device->active_path_index;
+ existing_device->path_map = new_device->path_map;
+ existing_device->bay = new_device->bay;
+ memcpy(existing_device->box, new_device->box,
+ sizeof(existing_device->box));
+ memcpy(existing_device->phys_connector, new_device->phys_connector,
+ sizeof(existing_device->phys_connector));
+ existing_device->offload_configured = new_device->offload_configured;
+ existing_device->offload_enabled = false;
+ existing_device->offload_enabled_pending =
+ new_device->offload_enabled_pending;
+ existing_device->offload_to_mirror = 0;
+ kfree(existing_device->raid_map);
+ existing_device->raid_map = new_device->raid_map;
+
+ /* To prevent this from being freed later. */
+ new_device->raid_map = NULL;
+}
+
+static inline void pqi_free_device(struct pqi_scsi_dev *device)
+{
+ if (device) {
+ kfree(device->raid_map);
+ kfree(device);
+ }
+}
+
+/*
+ * Called when exposing a new device to the OS fails in order to re-adjust
+ * our internal SCSI device list to match the SCSI ML's view.
+ */
+
+static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+ list_del(&device->scsi_device_list_entry);
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ /* Allow the device structure to be freed later. */
+ device->keep_device = false;
+}
+
+static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
+{
+ int rc;
+ unsigned int i;
+ unsigned long flags;
+ enum pqi_find_result find_result;
+ struct pqi_scsi_dev *device;
+ struct pqi_scsi_dev *next;
+ struct pqi_scsi_dev *matching_device;
+ struct list_head add_list;
+ struct list_head delete_list;
+
+ INIT_LIST_HEAD(&add_list);
+ INIT_LIST_HEAD(&delete_list);
+
+ /*
+ * The idea here is to do as little work as possible while holding the
+ * spinlock. That's why we go to great pains to defer anything other
+ * than updating the internal device list until after we release the
+ * spinlock.
+ */
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ /* Assume that all devices in the existing list have gone away. */
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry)
+ device->device_gone = true;
+
+ for (i = 0; i < num_new_devices; i++) {
+ device = new_device_list[i];
+
+ find_result = pqi_scsi_find_entry(ctrl_info, device,
+ &matching_device);
+
+ switch (find_result) {
+ case DEVICE_SAME:
+ /*
+ * The newly found device is already in the existing
+ * device list.
+ */
+ device->new_device = false;
+ matching_device->device_gone = false;
+ pqi_scsi_update_device(matching_device, device);
+ break;
+ case DEVICE_NOT_FOUND:
+ /*
+ * The newly found device is NOT in the existing device
+ * list.
+ */
+ device->new_device = true;
+ break;
+ case DEVICE_CHANGED:
+ /*
+ * The original device has gone away and we need to add
+ * the new device.
+ */
+ device->new_device = true;
+ break;
+ default:
+ WARN_ON(find_result);
+ break;
+ }
+ }
+
+ /* Process all devices that have gone away. */
+ list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->device_gone) {
+ list_del(&device->scsi_device_list_entry);
+ list_add_tail(&device->delete_list_entry, &delete_list);
+ }
+ }
+
+ /* Process all new devices. */
+ for (i = 0; i < num_new_devices; i++) {
+ device = new_device_list[i];
+ if (!device->new_device)
+ continue;
+ if (device->volume_offline)
+ continue;
+ list_add_tail(&device->scsi_device_list_entry,
+ &ctrl_info->scsi_device_list);
+ list_add_tail(&device->add_list_entry, &add_list);
+ /* To prevent this device structure from being freed later. */
+ device->keep_device = true;
+ }
+
+ pqi_update_all_logical_drive_queue_depths(ctrl_info);
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry)
+ device->offload_enabled =
+ device->offload_enabled_pending;
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ /* Remove all devices that have gone away. */
+ list_for_each_entry_safe(device, next, &delete_list,
+ delete_list_entry) {
+ if (device->sdev)
+ pqi_remove_device(ctrl_info, device);
+ if (device->volume_offline) {
+ pqi_dev_info(ctrl_info, "offline", device);
+ pqi_show_volume_status(ctrl_info, device);
+ } else {
+ pqi_dev_info(ctrl_info, "removed", device);
+ }
+ list_del(&device->delete_list_entry);
+ pqi_free_device(device);
+ }
+
+ /*
+ * Notify the SCSI ML if the queue depth of any existing device has
+ * changed.
+ */
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->sdev && device->queue_depth !=
+ device->advertised_queue_depth) {
+ device->advertised_queue_depth = device->queue_depth;
+ scsi_change_queue_depth(device->sdev,
+ device->advertised_queue_depth);
+ }
+ }
+
+ /* Expose any new devices. */
+ list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
+ if (device->expose_device && !device->sdev) {
+ rc = pqi_add_device(ctrl_info, device);
+ if (rc) {
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "scsi %d:%d:%d:%d addition failed, device not added\n",
+ ctrl_info->scsi_host->host_no,
+ device->bus, device->target,
+ device->lun);
+ pqi_fixup_botched_add(ctrl_info, device);
+ continue;
+ }
+ }
+ pqi_dev_info(ctrl_info, "added", device);
+ }
+}
+
+static bool pqi_is_supported_device(struct pqi_scsi_dev *device)
+{
+ bool is_supported = false;
+
+ switch (device->devtype) {
+ case TYPE_DISK:
+ case TYPE_ZBC:
+ case TYPE_TAPE:
+ case TYPE_MEDIUM_CHANGER:
+ case TYPE_ENCLOSURE:
+ is_supported = true;
+ break;
+ case TYPE_RAID:
+ /*
+ * Only support the HBA controller itself as a RAID
+ * controller. If it's a RAID controller other than
+ * the HBA itself (an external RAID controller, MSA500
+ * or similar), we don't support it.
+ */
+ if (pqi_is_hba_lunid(device->scsi3addr))
+ is_supported = true;
+ break;
+ }
+
+ return is_supported;
+}
+
+static inline bool pqi_skip_device(u8 *scsi3addr,
+ struct report_phys_lun_extended_entry *phys_lun_ext_entry)
+{
+ u8 device_flags;
+
+ if (!MASKED_DEVICE(scsi3addr))
+ return false;
+
+ /* The device is masked. */
+
+ device_flags = phys_lun_ext_entry->device_flags;
+
+ if (device_flags & REPORT_PHYS_LUN_DEV_FLAG_NON_DISK) {
+ /*
+ * It's a non-disk device. We ignore all devices of this type
+ * when they're masked.
+ */
+ return true;
+ }
+
+ return false;
+}
+
+static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
+{
+ /* Expose all devices except for physical devices that are masked. */
+ if (device->is_physical_device && MASKED_DEVICE(device->scsi3addr))
+ return false;
+
+ return true;
+}
+
+static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
+{
+ int i;
+ int rc;
+ struct list_head new_device_list_head;
+ struct report_phys_lun_extended *physdev_list = NULL;
+ struct report_log_lun_extended *logdev_list = NULL;
+ struct report_phys_lun_extended_entry *phys_lun_ext_entry;
+ struct report_log_lun_extended_entry *log_lun_ext_entry;
+ struct bmic_identify_physical_device *id_phys = NULL;
+ u32 num_physicals;
+ u32 num_logicals;
+ struct pqi_scsi_dev **new_device_list = NULL;
+ struct pqi_scsi_dev *device;
+ struct pqi_scsi_dev *next;
+ unsigned int num_new_devices;
+ unsigned int num_valid_devices;
+ bool is_physical_device;
+ u8 *scsi3addr;
+ static char *out_of_memory_msg =
+ "out of memory, device discovery stopped";
+
+ INIT_LIST_HEAD(&new_device_list_head);
+
+ rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list);
+ if (rc)
+ goto out;
+
+ if (physdev_list)
+ num_physicals =
+ get_unaligned_be32(&physdev_list->header.list_length)
+ / sizeof(physdev_list->lun_entries[0]);
+ else
+ num_physicals = 0;
+
+ if (logdev_list)
+ num_logicals =
+ get_unaligned_be32(&logdev_list->header.list_length)
+ / sizeof(logdev_list->lun_entries[0]);
+ else
+ num_logicals = 0;
+
+ if (num_physicals) {
+ /*
+ * We need this buffer for calls to pqi_get_physical_disk_info()
+ * below. We allocate it here instead of inside
+ * pqi_get_physical_disk_info() because it's a fairly large
+ * buffer.
+ */
+ id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL);
+ if (!id_phys) {
+ dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
+ out_of_memory_msg);
+ rc = -ENOMEM;
+ goto out;
+ }
+ }
+
+ num_new_devices = num_physicals + num_logicals;
+
+ new_device_list = kmalloc(sizeof(*new_device_list) *
+ num_new_devices, GFP_KERNEL);
+ if (!new_device_list) {
+ dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < num_new_devices; i++) {
+ device = kzalloc(sizeof(*device), GFP_KERNEL);
+ if (!device) {
+ dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
+ out_of_memory_msg);
+ rc = -ENOMEM;
+ goto out;
+ }
+ list_add_tail(&device->new_device_list_entry,
+ &new_device_list_head);
+ }
+
+ device = NULL;
+ num_valid_devices = 0;
+
+ for (i = 0; i < num_new_devices; i++) {
+
+ if (i < num_physicals) {
+ is_physical_device = true;
+ phys_lun_ext_entry = &physdev_list->lun_entries[i];
+ log_lun_ext_entry = NULL;
+ scsi3addr = phys_lun_ext_entry->lunid;
+ } else {
+ is_physical_device = false;
+ phys_lun_ext_entry = NULL;
+ log_lun_ext_entry =
+ &logdev_list->lun_entries[i - num_physicals];
+ scsi3addr = log_lun_ext_entry->lunid;
+ }
+
+ if (is_physical_device &&
+ pqi_skip_device(scsi3addr, phys_lun_ext_entry))
+ continue;
+
+ if (device)
+ device = list_next_entry(device, new_device_list_entry);
+ else
+ device = list_first_entry(&new_device_list_head,
+ struct pqi_scsi_dev, new_device_list_entry);
+
+ memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
+ device->is_physical_device = is_physical_device;
+ device->raid_level = SA_RAID_UNKNOWN;
+
+ /* Gather information about the device. */
+ rc = pqi_get_device_info(ctrl_info, device);
+ if (rc == -ENOMEM) {
+ dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
+ out_of_memory_msg);
+ goto out;
+ }
+ if (rc) {
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "obtaining device info failed, skipping device %016llx\n",
+ get_unaligned_be64(device->scsi3addr));
+ rc = 0;
+ continue;
+ }
+
+ if (!pqi_is_supported_device(device))
+ continue;
+
+ pqi_assign_bus_target_lun(device);
+
+ device->expose_device = pqi_expose_device(device);
+
+ if (device->is_physical_device) {
+ device->wwid = phys_lun_ext_entry->wwid;
+ if ((phys_lun_ext_entry->device_flags &
+ REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED) &&
+ phys_lun_ext_entry->aio_handle)
+ device->aio_enabled = true;
+ } else {
+ memcpy(device->volume_id, log_lun_ext_entry->volume_id,
+ sizeof(device->volume_id));
+ }
+
+ switch (device->devtype) {
+ case TYPE_DISK:
+ case TYPE_ZBC:
+ case TYPE_ENCLOSURE:
+ if (device->is_physical_device) {
+ device->sas_address =
+ get_unaligned_be64(&device->wwid);
+ if (device->devtype == TYPE_DISK ||
+ device->devtype == TYPE_ZBC) {
+ device->aio_handle =
+ phys_lun_ext_entry->aio_handle;
+ pqi_get_physical_disk_info(ctrl_info,
+ device, id_phys);
+ }
+ }
+ break;
+ }
+
+ new_device_list[num_valid_devices++] = device;
+ }
+
+ pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices);
+
+out:
+ list_for_each_entry_safe(device, next, &new_device_list_head,
+ new_device_list_entry) {
+ if (device->keep_device)
+ continue;
+ list_del(&device->new_device_list_entry);
+ pqi_free_device(device);
+ }
+
+ kfree(new_device_list);
+ kfree(physdev_list);
+ kfree(logdev_list);
+ kfree(id_phys);
+
+ return rc;
+}
+
+static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned long flags;
+ struct pqi_scsi_dev *device;
+ struct pqi_scsi_dev *next;
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->sdev)
+ pqi_remove_device(ctrl_info, device);
+ list_del(&device->scsi_device_list_entry);
+ pqi_free_device(device);
+ }
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+}
+
+static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+
+ if (pqi_ctrl_offline(ctrl_info))
+ return -ENXIO;
+
+ mutex_lock(&ctrl_info->scan_mutex);
+
+ rc = pqi_update_scsi_devices(ctrl_info);
+ if (rc)
+ pqi_schedule_rescan_worker(ctrl_info);
+
+ mutex_unlock(&ctrl_info->scan_mutex);
+
+ return rc;
+}
+
+static void pqi_scan_start(struct Scsi_Host *shost)
+{
+ pqi_scan_scsi_devices(shost_to_hba(shost));
+}
+
+/* Returns TRUE if scan is finished. */
+
+static int pqi_scan_finished(struct Scsi_Host *shost,
+ unsigned long elapsed_time)
+{
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = shost_priv(shost);
+
+ return !mutex_is_locked(&ctrl_info->scan_mutex);
+}
+
+static inline void pqi_set_encryption_info(
+ struct pqi_encryption_info *encryption_info, struct raid_map *raid_map,
+ u64 first_block)
+{
+ u32 volume_blk_size;
+
+ /*
+ * Set the encryption tweak values based on logical block address.
+ * If the block size is 512, the tweak value is equal to the LBA.
+ * For other block sizes, tweak value is (LBA * block size) / 512.
+ */
+ volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size);
+ if (volume_blk_size != 512)
+ first_block = (first_block * volume_blk_size) / 512;
+
+ encryption_info->data_encryption_key_index =
+ get_unaligned_le16(&raid_map->data_encryption_key_index);
+ encryption_info->encrypt_tweak_lower = lower_32_bits(first_block);
+ encryption_info->encrypt_tweak_upper = upper_32_bits(first_block);
+}
+
+/*
+ * Attempt to perform offload RAID mapping for a logical volume I/O.
+ */
+
+#define PQI_RAID_BYPASS_INELIGIBLE 1
+
+static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
+ struct pqi_queue_group *queue_group)
+{
+ struct raid_map *raid_map;
+ bool is_write = false;
+ u32 map_index;
+ u64 first_block;
+ u64 last_block;
+ u32 block_cnt;
+ u32 blocks_per_row;
+ u64 first_row;
+ u64 last_row;
+ u32 first_row_offset;
+ u32 last_row_offset;
+ u32 first_column;
+ u32 last_column;
+ u64 r0_first_row;
+ u64 r0_last_row;
+ u32 r5or6_blocks_per_row;
+ u64 r5or6_first_row;
+ u64 r5or6_last_row;
+ u32 r5or6_first_row_offset;
+ u32 r5or6_last_row_offset;
+ u32 r5or6_first_column;
+ u32 r5or6_last_column;
+ u16 data_disks_per_row;
+ u32 total_disks_per_row;
+ u16 layout_map_count;
+ u32 stripesize;
+ u16 strip_size;
+ u32 first_group;
+ u32 last_group;
+ u32 current_group;
+ u32 map_row;
+ u32 aio_handle;
+ u64 disk_block;
+ u32 disk_block_cnt;
+ u8 cdb[16];
+ u8 cdb_length;
+ int offload_to_mirror;
+ struct pqi_encryption_info *encryption_info_ptr;
+ struct pqi_encryption_info encryption_info;
+#if BITS_PER_LONG == 32
+ u64 tmpdiv;
+#endif
+
+ /* Check for valid opcode, get LBA and block count. */
+ switch (scmd->cmnd[0]) {
+ case WRITE_6:
+ is_write = true;
+ /* fall through */
+ case READ_6:
+ first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) |
+ (scmd->cmnd[2] << 8) | scmd->cmnd[3]);
+ block_cnt = (u32)scmd->cmnd[4];
+ if (block_cnt == 0)
+ block_cnt = 256;
+ break;
+ case WRITE_10:
+ is_write = true;
+ /* fall through */
+ case READ_10:
+ first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
+ block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]);
+ break;
+ case WRITE_12:
+ is_write = true;
+ /* fall through */
+ case READ_12:
+ first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
+ block_cnt = get_unaligned_be32(&scmd->cmnd[6]);
+ break;
+ case WRITE_16:
+ is_write = true;
+ /* fall through */
+ case READ_16:
+ first_block = get_unaligned_be64(&scmd->cmnd[2]);
+ block_cnt = get_unaligned_be32(&scmd->cmnd[10]);
+ break;
+ default:
+ /* Process via normal I/O path. */
+ return PQI_RAID_BYPASS_INELIGIBLE;
+ }
+
+ /* Check for write to non-RAID-0. */
+ if (is_write && device->raid_level != SA_RAID_0)
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ if (unlikely(block_cnt == 0))
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ last_block = first_block + block_cnt - 1;
+ raid_map = device->raid_map;
+
+ /* Check for invalid block or wraparound. */
+ if (last_block >= get_unaligned_le64(&raid_map->volume_blk_cnt) ||
+ last_block < first_block)
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ data_disks_per_row = get_unaligned_le16(&raid_map->data_disks_per_row);
+ strip_size = get_unaligned_le16(&raid_map->strip_size);
+ layout_map_count = get_unaligned_le16(&raid_map->layout_map_count);
+
+ /* Calculate stripe information for the request. */
+ blocks_per_row = data_disks_per_row * strip_size;
+#if BITS_PER_LONG == 32
+ tmpdiv = first_block;
+ do_div(tmpdiv, blocks_per_row);
+ first_row = tmpdiv;
+ tmpdiv = last_block;
+ do_div(tmpdiv, blocks_per_row);
+ last_row = tmpdiv;
+ first_row_offset = (u32)(first_block - (first_row * blocks_per_row));
+ last_row_offset = (u32)(last_block - (last_row * blocks_per_row));
+ tmpdiv = first_row_offset;
+ do_div(tmpdiv, strip_size);
+ first_column = tmpdiv;
+ tmpdiv = last_row_offset;
+ do_div(tmpdiv, strip_size);
+ last_column = tmpdiv;
+#else
+ first_row = first_block / blocks_per_row;
+ last_row = last_block / blocks_per_row;
+ first_row_offset = (u32)(first_block - (first_row * blocks_per_row));
+ last_row_offset = (u32)(last_block - (last_row * blocks_per_row));
+ first_column = first_row_offset / strip_size;
+ last_column = last_row_offset / strip_size;
+#endif
+
+ /* If this isn't a single row/column then give to the controller. */
+ if (first_row != last_row || first_column != last_column)
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ /* Proceeding with driver mapping. */
+ total_disks_per_row = data_disks_per_row +
+ get_unaligned_le16(&raid_map->metadata_disks_per_row);
+ map_row = ((u32)(first_row >> raid_map->parity_rotation_shift)) %
+ get_unaligned_le16(&raid_map->row_cnt);
+ map_index = (map_row * total_disks_per_row) + first_column;
+
+ /* RAID 1 */
+ if (device->raid_level == SA_RAID_1) {
+ if (device->offload_to_mirror)
+ map_index += data_disks_per_row;
+ device->offload_to_mirror = !device->offload_to_mirror;
+ } else if (device->raid_level == SA_RAID_ADM) {
+ /* RAID ADM */
+ /*
+ * Handles N-way mirrors (R1-ADM) and R10 with # of drives
+ * divisible by 3.
+ */
+ offload_to_mirror = device->offload_to_mirror;
+ if (offload_to_mirror == 0) {
+ /* use physical disk in the first mirrored group. */
+ map_index %= data_disks_per_row;
+ } else {
+ do {
+ /*
+ * Determine mirror group that map_index
+ * indicates.
+ */
+ current_group = map_index / data_disks_per_row;
+
+ if (offload_to_mirror != current_group) {
+ if (current_group <
+ layout_map_count - 1) {
+ /*
+ * Select raid index from
+ * next group.
+ */
+ map_index += data_disks_per_row;
+ current_group++;
+ } else {
+ /*
+ * Select raid index from first
+ * group.
+ */
+ map_index %= data_disks_per_row;
+ current_group = 0;
+ }
+ }
+ } while (offload_to_mirror != current_group);
+ }
+
+ /* Set mirror group to use next time. */
+ offload_to_mirror =
+ (offload_to_mirror >= layout_map_count - 1) ?
+ 0 : offload_to_mirror + 1;
+ WARN_ON(offload_to_mirror >= layout_map_count);
+ device->offload_to_mirror = offload_to_mirror;
+ /*
+ * Avoid direct use of device->offload_to_mirror within this
+ * function since multiple threads might simultaneously
+ * increment it beyond the range of device->layout_map_count -1.
+ */
+ } else if ((device->raid_level == SA_RAID_5 ||
+ device->raid_level == SA_RAID_6) && layout_map_count > 1) {
+ /* RAID 50/60 */
+ /* Verify first and last block are in same RAID group */
+ r5or6_blocks_per_row = strip_size * data_disks_per_row;
+ stripesize = r5or6_blocks_per_row * layout_map_count;
+#if BITS_PER_LONG == 32
+ tmpdiv = first_block;
+ first_group = do_div(tmpdiv, stripesize);
+ tmpdiv = first_group;
+ do_div(tmpdiv, r5or6_blocks_per_row);
+ first_group = tmpdiv;
+ tmpdiv = last_block;
+ last_group = do_div(tmpdiv, stripesize);
+ tmpdiv = last_group;
+ do_div(tmpdiv, r5or6_blocks_per_row);
+ last_group = tmpdiv;
+#else
+ first_group = (first_block % stripesize) / r5or6_blocks_per_row;
+ last_group = (last_block % stripesize) / r5or6_blocks_per_row;
+#endif
+ if (first_group != last_group)
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ /* Verify request is in a single row of RAID 5/6 */
+#if BITS_PER_LONG == 32
+ tmpdiv = first_block;
+ do_div(tmpdiv, stripesize);
+ first_row = r5or6_first_row = r0_first_row = tmpdiv;
+ tmpdiv = last_block;
+ do_div(tmpdiv, stripesize);
+ r5or6_last_row = r0_last_row = tmpdiv;
+#else
+ first_row = r5or6_first_row = r0_first_row =
+ first_block / stripesize;
+ r5or6_last_row = r0_last_row = last_block / stripesize;
+#endif
+ if (r5or6_first_row != r5or6_last_row)
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ /* Verify request is in a single column */
+#if BITS_PER_LONG == 32
+ tmpdiv = first_block;
+ first_row_offset = do_div(tmpdiv, stripesize);
+ tmpdiv = first_row_offset;
+ first_row_offset = (u32)do_div(tmpdiv, r5or6_blocks_per_row);
+ r5or6_first_row_offset = first_row_offset;
+ tmpdiv = last_block;
+ r5or6_last_row_offset = do_div(tmpdiv, stripesize);
+ tmpdiv = r5or6_last_row_offset;
+ r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row);
+ tmpdiv = r5or6_first_row_offset;
+ do_div(tmpdiv, strip_size);
+ first_column = r5or6_first_column = tmpdiv;
+ tmpdiv = r5or6_last_row_offset;
+ do_div(tmpdiv, strip_size);
+ r5or6_last_column = tmpdiv;
+#else
+ first_row_offset = r5or6_first_row_offset =
+ (u32)((first_block % stripesize) %
+ r5or6_blocks_per_row);
+
+ r5or6_last_row_offset =
+ (u32)((last_block % stripesize) %
+ r5or6_blocks_per_row);
+
+ first_column = r5or6_first_row_offset / strip_size;
+ r5or6_first_column = first_column;
+ r5or6_last_column = r5or6_last_row_offset / strip_size;
+#endif
+ if (r5or6_first_column != r5or6_last_column)
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ /* Request is eligible */
+ map_row =
+ ((u32)(first_row >> raid_map->parity_rotation_shift)) %
+ get_unaligned_le16(&raid_map->row_cnt);
+
+ map_index = (first_group *
+ (get_unaligned_le16(&raid_map->row_cnt) *
+ total_disks_per_row)) +
+ (map_row * total_disks_per_row) + first_column;
+ }
+
+ if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES))
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ aio_handle = raid_map->disk_data[map_index].aio_handle;
+ disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) +
+ first_row * strip_size +
+ (first_row_offset - first_column * strip_size);
+ disk_block_cnt = block_cnt;
+
+ /* Handle differing logical/physical block sizes. */
+ if (raid_map->phys_blk_shift) {
+ disk_block <<= raid_map->phys_blk_shift;
+ disk_block_cnt <<= raid_map->phys_blk_shift;
+ }
+
+ if (unlikely(disk_block_cnt > 0xffff))
+ return PQI_RAID_BYPASS_INELIGIBLE;
+
+ /* Build the new CDB for the physical disk I/O. */
+ if (disk_block > 0xffffffff) {
+ cdb[0] = is_write ? WRITE_16 : READ_16;
+ cdb[1] = 0;
+ put_unaligned_be64(disk_block, &cdb[2]);
+ put_unaligned_be32(disk_block_cnt, &cdb[10]);
+ cdb[14] = 0;
+ cdb[15] = 0;
+ cdb_length = 16;
+ } else {
+ cdb[0] = is_write ? WRITE_10 : READ_10;
+ cdb[1] = 0;
+ put_unaligned_be32((u32)disk_block, &cdb[2]);
+ cdb[6] = 0;
+ put_unaligned_be16((u16)disk_block_cnt, &cdb[7]);
+ cdb[9] = 0;
+ cdb_length = 10;
+ }
+
+ if (get_unaligned_le16(&raid_map->flags) &
+ RAID_MAP_ENCRYPTION_ENABLED) {
+ pqi_set_encryption_info(&encryption_info, raid_map,
+ first_block);
+ encryption_info_ptr = &encryption_info;
+ } else {
+ encryption_info_ptr = NULL;
+ }
+
+ return pqi_aio_submit_io(ctrl_info, scmd, aio_handle,
+ cdb, cdb_length, queue_group, encryption_info_ptr);
+}
+
+#define PQI_STATUS_IDLE 0x0
+
+#define PQI_CREATE_ADMIN_QUEUE_PAIR 1
+#define PQI_DELETE_ADMIN_QUEUE_PAIR 2
+
+#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0
+#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1
+#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2
+#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3
+#define PQI_DEVICE_STATE_ERROR 0x4
+
+#define PQI_MODE_READY_TIMEOUT_SECS 30
+#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1
+
+static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info)
+{
+ struct pqi_device_registers __iomem *pqi_registers;
+ unsigned long timeout;
+ u64 signature;
+ u8 status;
+
+ pqi_registers = ctrl_info->pqi_registers;
+ timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies;
+
+ while (1) {
+ signature = readq(&pqi_registers->signature);
+ if (memcmp(&signature, PQI_DEVICE_SIGNATURE,
+ sizeof(signature)) == 0)
+ break;
+ if (time_after(jiffies, timeout)) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "timed out waiting for PQI signature\n");
+ return -ETIMEDOUT;
+ }
+ msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
+ }
+
+ while (1) {
+ status = readb(&pqi_registers->function_and_status_code);
+ if (status == PQI_STATUS_IDLE)
+ break;
+ if (time_after(jiffies, timeout)) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "timed out waiting for PQI IDLE\n");
+ return -ETIMEDOUT;
+ }
+ msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
+ }
+
+ while (1) {
+ if (readl(&pqi_registers->device_status) ==
+ PQI_DEVICE_STATE_ALL_REGISTERS_READY)
+ break;
+ if (time_after(jiffies, timeout)) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "timed out waiting for PQI all registers ready\n");
+ return -ETIMEDOUT;
+ }
+ msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
+ }
+
+ return 0;
+}
+
+static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
+{
+ struct pqi_scsi_dev *device;
+
+ device = io_request->scmd->device->hostdata;
+ device->offload_enabled = false;
+}
+
+static inline void pqi_take_device_offline(struct scsi_device *sdev)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_scsi_dev *device;
+
+ if (scsi_device_online(sdev)) {
+ scsi_device_set_state(sdev, SDEV_OFFLINE);
+ ctrl_info = shost_to_hba(sdev->host);
+ schedule_delayed_work(&ctrl_info->rescan_work, 0);
+ device = sdev->hostdata;
+ dev_err(&ctrl_info->pci_dev->dev, "offlined scsi %d:%d:%d:%d\n",
+ ctrl_info->scsi_host->host_no, device->bus,
+ device->target, device->lun);
+ }
+}
+
+static void pqi_process_raid_io_error(struct pqi_io_request *io_request)
+{
+ u8 scsi_status;
+ u8 host_byte;
+ struct scsi_cmnd *scmd;
+ struct pqi_raid_error_info *error_info;
+ size_t sense_data_length;
+ int residual_count;
+ int xfer_count;
+ struct scsi_sense_hdr sshdr;
+
+ scmd = io_request->scmd;
+ if (!scmd)
+ return;
+
+ error_info = io_request->error_info;
+ scsi_status = error_info->status;
+ host_byte = DID_OK;
+
+ if (error_info->data_out_result == PQI_DATA_IN_OUT_UNDERFLOW) {
+ xfer_count =
+ get_unaligned_le32(&error_info->data_out_transferred);
+ residual_count = scsi_bufflen(scmd) - xfer_count;
+ scsi_set_resid(scmd, residual_count);
+ if (xfer_count < scmd->underflow)
+ host_byte = DID_SOFT_ERROR;
+ }
+
+ sense_data_length = get_unaligned_le16(&error_info->sense_data_length);
+ if (sense_data_length == 0)
+ sense_data_length =
+ get_unaligned_le16(&error_info->response_data_length);
+ if (sense_data_length) {
+ if (sense_data_length > sizeof(error_info->data))
+ sense_data_length = sizeof(error_info->data);
+
+ if (scsi_status == SAM_STAT_CHECK_CONDITION &&
+ scsi_normalize_sense(error_info->data,
+ sense_data_length, &sshdr) &&
+ sshdr.sense_key == HARDWARE_ERROR &&
+ sshdr.asc == 0x3e &&
+ sshdr.ascq == 0x1) {
+ pqi_take_device_offline(scmd->device);
+ host_byte = DID_NO_CONNECT;
+ }
+
+ if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
+ sense_data_length = SCSI_SENSE_BUFFERSIZE;
+ memcpy(scmd->sense_buffer, error_info->data,
+ sense_data_length);
+ }
+
+ scmd->result = scsi_status;
+ set_host_byte(scmd, host_byte);
+}
+
+static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
+{
+ u8 scsi_status;
+ u8 host_byte;
+ struct scsi_cmnd *scmd;
+ struct pqi_aio_error_info *error_info;
+ size_t sense_data_length;
+ int residual_count;
+ int xfer_count;
+ bool device_offline;
+
+ scmd = io_request->scmd;
+ error_info = io_request->error_info;
+ host_byte = DID_OK;
+ sense_data_length = 0;
+ device_offline = false;
+
+ switch (error_info->service_response) {
+ case PQI_AIO_SERV_RESPONSE_COMPLETE:
+ scsi_status = error_info->status;
+ break;
+ case PQI_AIO_SERV_RESPONSE_FAILURE:
+ switch (error_info->status) {
+ case PQI_AIO_STATUS_IO_ABORTED:
+ scsi_status = SAM_STAT_TASK_ABORTED;
+ break;
+ case PQI_AIO_STATUS_UNDERRUN:
+ scsi_status = SAM_STAT_GOOD;
+ residual_count = get_unaligned_le32(
+ &error_info->residual_count);
+ scsi_set_resid(scmd, residual_count);
+ xfer_count = scsi_bufflen(scmd) - residual_count;
+ if (xfer_count < scmd->underflow)
+ host_byte = DID_SOFT_ERROR;
+ break;
+ case PQI_AIO_STATUS_OVERRUN:
+ scsi_status = SAM_STAT_GOOD;
+ break;
+ case PQI_AIO_STATUS_AIO_PATH_DISABLED:
+ pqi_aio_path_disabled(io_request);
+ scsi_status = SAM_STAT_GOOD;
+ io_request->status = -EAGAIN;
+ break;
+ case PQI_AIO_STATUS_NO_PATH_TO_DEVICE:
+ case PQI_AIO_STATUS_INVALID_DEVICE:
+ device_offline = true;
+ pqi_take_device_offline(scmd->device);
+ host_byte = DID_NO_CONNECT;
+ scsi_status = SAM_STAT_CHECK_CONDITION;
+ break;
+ case PQI_AIO_STATUS_IO_ERROR:
+ default:
+ scsi_status = SAM_STAT_CHECK_CONDITION;
+ break;
+ }
+ break;
+ case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE:
+ case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED:
+ scsi_status = SAM_STAT_GOOD;
+ break;
+ case PQI_AIO_SERV_RESPONSE_TMF_REJECTED:
+ case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN:
+ default:
+ scsi_status = SAM_STAT_CHECK_CONDITION;
+ break;
+ }
+
+ if (error_info->data_present) {
+ sense_data_length =
+ get_unaligned_le16(&error_info->data_length);
+ if (sense_data_length) {
+ if (sense_data_length > sizeof(error_info->data))
+ sense_data_length = sizeof(error_info->data);
+ if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
+ sense_data_length = SCSI_SENSE_BUFFERSIZE;
+ memcpy(scmd->sense_buffer, error_info->data,
+ sense_data_length);
+ }
+ }
+
+ if (device_offline && sense_data_length == 0)
+ scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR,
+ 0x3e, 0x1);
+
+ scmd->result = scsi_status;
+ set_host_byte(scmd, host_byte);
+}
+
+static void pqi_process_io_error(unsigned int iu_type,
+ struct pqi_io_request *io_request)
+{
+ switch (iu_type) {
+ case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
+ pqi_process_raid_io_error(io_request);
+ break;
+ case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
+ pqi_process_aio_io_error(io_request);
+ break;
+ }
+}
+
+static int pqi_interpret_task_management_response(
+ struct pqi_task_management_response *response)
+{
+ int rc;
+
+ switch (response->response_code) {
+ case SOP_TMF_COMPLETE:
+ case SOP_TMF_FUNCTION_SUCCEEDED:
+ rc = 0;
+ break;
+ default:
+ rc = -EIO;
+ break;
+ }
+
+ return rc;
+}
+
+static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_queue_group *queue_group)
+{
+ unsigned int num_responses;
+ pqi_index_t oq_pi;
+ pqi_index_t oq_ci;
+ struct pqi_io_request *io_request;
+ struct pqi_io_response *response;
+ u16 request_id;
+
+ num_responses = 0;
+ oq_ci = queue_group->oq_ci_copy;
+
+ while (1) {
+ oq_pi = *queue_group->oq_pi;
+ if (oq_pi == oq_ci)
+ break;
+
+ num_responses++;
+ response = queue_group->oq_element_array +
+ (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
+
+ request_id = get_unaligned_le16(&response->request_id);
+ WARN_ON(request_id >= ctrl_info->max_io_slots);
+
+ io_request = &ctrl_info->io_request_pool[request_id];
+ WARN_ON(atomic_read(&io_request->refcount) == 0);
+
+ switch (response->header.iu_type) {
+ case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS:
+ case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS:
+ case PQI_RESPONSE_IU_GENERAL_MANAGEMENT:
+ break;
+ case PQI_RESPONSE_IU_TASK_MANAGEMENT:
+ io_request->status =
+ pqi_interpret_task_management_response(
+ (void *)response);
+ break;
+ case PQI_RESPONSE_IU_AIO_PATH_DISABLED:
+ pqi_aio_path_disabled(io_request);
+ io_request->status = -EAGAIN;
+ break;
+ case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
+ case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
+ io_request->error_info = ctrl_info->error_buffer +
+ (get_unaligned_le16(&response->error_index) *
+ PQI_ERROR_BUFFER_ELEMENT_LENGTH);
+ pqi_process_io_error(response->header.iu_type,
+ io_request);
+ break;
+ default:
+ dev_err(&ctrl_info->pci_dev->dev,
+ "unexpected IU type: 0x%x\n",
+ response->header.iu_type);
+ WARN_ON(response->header.iu_type);
+ break;
+ }
+
+ io_request->io_complete_callback(io_request,
+ io_request->context);
+
+ /*
+ * Note that the I/O request structure CANNOT BE TOUCHED after
+ * returning from the I/O completion callback!
+ */
+
+ oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq;
+ }
+
+ if (num_responses) {
+ queue_group->oq_ci_copy = oq_ci;
+ writel(oq_ci, queue_group->oq_ci);
+ }
+
+ return num_responses;
+}
+
+static inline unsigned int pqi_num_elements_free(unsigned int pi,
+ unsigned int ci, unsigned int elements_in_queue)
+{
+ unsigned int num_elements_used;
+
+ if (pi >= ci)
+ num_elements_used = pi - ci;
+ else
+ num_elements_used = elements_in_queue - ci + pi;
+
+ return elements_in_queue - num_elements_used - 1;
+}
+
+#define PQI_EVENT_ACK_TIMEOUT 30
+
+static void pqi_start_event_ack(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_event_acknowledge_request *iu, size_t iu_length)
+{
+ pqi_index_t iq_pi;
+ pqi_index_t iq_ci;
+ unsigned long flags;
+ void *next_element;
+ unsigned long timeout;
+ struct pqi_queue_group *queue_group;
+
+ queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP];
+ put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id);
+
+ timeout = (PQI_EVENT_ACK_TIMEOUT * HZ) + jiffies;
+
+ while (1) {
+ spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags);
+
+ iq_pi = queue_group->iq_pi_copy[RAID_PATH];
+ iq_ci = *queue_group->iq_ci[RAID_PATH];
+
+ if (pqi_num_elements_free(iq_pi, iq_ci,
+ ctrl_info->num_elements_per_iq))
+ break;
+
+ spin_unlock_irqrestore(
+ &queue_group->submit_lock[RAID_PATH], flags);
+
+ if (time_after(jiffies, timeout)) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "sending event acknowledge timed out\n");
+ return;
+ }
+ }
+
+ next_element = queue_group->iq_element_array[RAID_PATH] +
+ (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+
+ memcpy(next_element, iu, iu_length);
+
+ iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq;
+
+ queue_group->iq_pi_copy[RAID_PATH] = iq_pi;
+
+ /*
+ * This write notifies the controller that an IU is available to be
+ * processed.
+ */
+ writel(iq_pi, queue_group->iq_pi[RAID_PATH]);
+
+ spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags);
+}
+
+static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_event *event)
+{
+ struct pqi_event_acknowledge_request request;
+
+ memset(&request, 0, sizeof(request));
+
+ request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
+ put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
+ &request.header.iu_length);
+ request.event_type = event->event_type;
+ request.event_id = event->event_id;
+ request.additional_event_id = event->additional_event_id;
+
+ pqi_start_event_ack(ctrl_info, &request, sizeof(request));
+}
+
+static void pqi_event_worker(struct work_struct *work)
+{
+ unsigned int i;
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_event *pending_event;
+ bool got_non_heartbeat_event = false;
+
+ ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
+
+ pending_event = ctrl_info->pending_events;
+ for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
+ if (pending_event->pending) {
+ pending_event->pending = false;
+ pqi_acknowledge_event(ctrl_info, pending_event);
+ if (i != PQI_EVENT_HEARTBEAT)
+ got_non_heartbeat_event = true;
+ }
+ pending_event++;
+ }
+
+ if (got_non_heartbeat_event)
+ pqi_schedule_rescan_worker(ctrl_info);
+}
+
+static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ unsigned int path;
+ struct pqi_queue_group *queue_group;
+ unsigned long flags;
+ struct pqi_io_request *io_request;
+ struct pqi_io_request *next;
+ struct scsi_cmnd *scmd;
+
+ ctrl_info->controller_online = false;
+ dev_err(&ctrl_info->pci_dev->dev, "controller offline\n");
+
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ queue_group = &ctrl_info->queue_groups[i];
+
+ for (path = 0; path < 2; path++) {
+ spin_lock_irqsave(
+ &queue_group->submit_lock[path], flags);
+
+ list_for_each_entry_safe(io_request, next,
+ &queue_group->request_list[path],
+ request_list_entry) {
+
+ scmd = io_request->scmd;
+ if (scmd) {
+ set_host_byte(scmd, DID_NO_CONNECT);
+ pqi_scsi_done(scmd);
+ }
+
+ list_del(&io_request->request_list_entry);
+ }
+
+ spin_unlock_irqrestore(
+ &queue_group->submit_lock[path], flags);
+ }
+ }
+}
+
+#define PQI_HEARTBEAT_TIMER_INTERVAL (5 * HZ)
+#define PQI_MAX_HEARTBEAT_REQUESTS 5
+
+static void pqi_heartbeat_timer_handler(unsigned long data)
+{
+ int num_interrupts;
+ struct pqi_ctrl_info *ctrl_info = (struct pqi_ctrl_info *)data;
+
+ num_interrupts = atomic_read(&ctrl_info->num_interrupts);
+
+ if (num_interrupts == ctrl_info->previous_num_interrupts) {
+ ctrl_info->num_heartbeats_requested++;
+ if (ctrl_info->num_heartbeats_requested >
+ PQI_MAX_HEARTBEAT_REQUESTS) {
+ pqi_take_ctrl_offline(ctrl_info);
+ return;
+ }
+ ctrl_info->pending_events[PQI_EVENT_HEARTBEAT].pending = true;
+ schedule_work(&ctrl_info->event_work);
+ } else {
+ ctrl_info->num_heartbeats_requested = 0;
+ }
+
+ ctrl_info->previous_num_interrupts = num_interrupts;
+ mod_timer(&ctrl_info->heartbeat_timer,
+ jiffies + PQI_HEARTBEAT_TIMER_INTERVAL);
+}
+
+static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
+{
+ ctrl_info->previous_num_interrupts =
+ atomic_read(&ctrl_info->num_interrupts);
+
+ init_timer(&ctrl_info->heartbeat_timer);
+ ctrl_info->heartbeat_timer.expires =
+ jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
+ ctrl_info->heartbeat_timer.data = (unsigned long)ctrl_info;
+ ctrl_info->heartbeat_timer.function = pqi_heartbeat_timer_handler;
+ add_timer(&ctrl_info->heartbeat_timer);
+ ctrl_info->heartbeat_timer_started = true;
+}
+
+static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
+{
+ if (ctrl_info->heartbeat_timer_started)
+ del_timer_sync(&ctrl_info->heartbeat_timer);
+}
+
+static int pqi_event_type_to_event_index(unsigned int event_type)
+{
+ int index;
+
+ switch (event_type) {
+ case PQI_EVENT_TYPE_HEARTBEAT:
+ index = PQI_EVENT_HEARTBEAT;
+ break;
+ case PQI_EVENT_TYPE_HOTPLUG:
+ index = PQI_EVENT_HOTPLUG;
+ break;
+ case PQI_EVENT_TYPE_HARDWARE:
+ index = PQI_EVENT_HARDWARE;
+ break;
+ case PQI_EVENT_TYPE_PHYSICAL_DEVICE:
+ index = PQI_EVENT_PHYSICAL_DEVICE;
+ break;
+ case PQI_EVENT_TYPE_LOGICAL_DEVICE:
+ index = PQI_EVENT_LOGICAL_DEVICE;
+ break;
+ case PQI_EVENT_TYPE_AIO_STATE_CHANGE:
+ index = PQI_EVENT_AIO_STATE_CHANGE;
+ break;
+ case PQI_EVENT_TYPE_AIO_CONFIG_CHANGE:
+ index = PQI_EVENT_AIO_CONFIG_CHANGE;
+ break;
+ default:
+ index = -1;
+ break;
+ }
+
+ return index;
+}
+
+static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int num_events;
+ pqi_index_t oq_pi;
+ pqi_index_t oq_ci;
+ struct pqi_event_queue *event_queue;
+ struct pqi_event_response *response;
+ struct pqi_event *pending_event;
+ bool need_delayed_work;
+ int event_index;
+
+ event_queue = &ctrl_info->event_queue;
+ num_events = 0;
+ need_delayed_work = false;
+ oq_ci = event_queue->oq_ci_copy;
+
+ while (1) {
+ oq_pi = *event_queue->oq_pi;
+ if (oq_pi == oq_ci)
+ break;
+
+ num_events++;
+ response = event_queue->oq_element_array +
+ (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
+
+ event_index =
+ pqi_event_type_to_event_index(response->event_type);
+
+ if (event_index >= 0) {
+ if (response->request_acknowlege) {
+ pending_event =
+ &ctrl_info->pending_events[event_index];
+ pending_event->event_type =
+ response->event_type;
+ pending_event->event_id = response->event_id;
+ pending_event->additional_event_id =
+ response->additional_event_id;
+ if (event_index != PQI_EVENT_HEARTBEAT) {
+ pending_event->pending = true;
+ need_delayed_work = true;
+ }
+ }
+ }
+
+ oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
+ }
+
+ if (num_events) {
+ event_queue->oq_ci_copy = oq_ci;
+ writel(oq_ci, event_queue->oq_ci);
+
+ if (need_delayed_work)
+ schedule_work(&ctrl_info->event_work);
+ }
+
+ return num_events;
+}
+
+static irqreturn_t pqi_irq_handler(int irq, void *data)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_queue_group *queue_group;
+ unsigned int num_responses_handled;
+
+ queue_group = data;
+ ctrl_info = queue_group->ctrl_info;
+
+ if (!ctrl_info || !queue_group->oq_ci)
+ return IRQ_NONE;
+
+ num_responses_handled = pqi_process_io_intr(ctrl_info, queue_group);
+
+ if (irq == ctrl_info->event_irq)
+ num_responses_handled += pqi_process_event_intr(ctrl_info);
+
+ if (num_responses_handled)
+ atomic_inc(&ctrl_info->num_interrupts);
+
+ pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL);
+ pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL);
+
+ return IRQ_HANDLED;
+}
+
+static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info)
+{
+ int i;
+ int rc;
+
+ ctrl_info->event_irq = ctrl_info->msix_vectors[0];
+
+ for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) {
+ rc = request_irq(ctrl_info->msix_vectors[i],
+ pqi_irq_handler, 0,
+ DRIVER_NAME_SHORT, ctrl_info->intr_data[i]);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "irq %u init failed with error %d\n",
+ ctrl_info->msix_vectors[i], rc);
+ return rc;
+ }
+ ctrl_info->num_msix_vectors_initialized++;
+ }
+
+ return 0;
+}
+
+static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info)
+{
+ int i;
+
+ for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
+ free_irq(ctrl_info->msix_vectors[i],
+ ctrl_info->intr_data[i]);
+}
+
+static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ int max_vectors;
+ int num_vectors_enabled;
+ struct msix_entry msix_entries[PQI_MAX_MSIX_VECTORS];
+
+ max_vectors = ctrl_info->num_queue_groups;
+
+ for (i = 0; i < max_vectors; i++)
+ msix_entries[i].entry = i;
+
+ num_vectors_enabled = pci_enable_msix_range(ctrl_info->pci_dev,
+ msix_entries, PQI_MIN_MSIX_VECTORS, max_vectors);
+
+ if (num_vectors_enabled < 0) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "MSI-X init failed with error %d\n",
+ num_vectors_enabled);
+ return num_vectors_enabled;
+ }
+
+ ctrl_info->num_msix_vectors_enabled = num_vectors_enabled;
+ for (i = 0; i < num_vectors_enabled; i++) {
+ ctrl_info->msix_vectors[i] = msix_entries[i].vector;
+ ctrl_info->intr_data[i] = &ctrl_info->queue_groups[i];
+ }
+
+ return 0;
+}
+
+static void pqi_irq_set_affinity_hint(struct pqi_ctrl_info *ctrl_info)
+{
+ int i;
+ int rc;
+ int cpu;
+
+ cpu = cpumask_first(cpu_online_mask);
+ for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) {
+ rc = irq_set_affinity_hint(ctrl_info->msix_vectors[i],
+ get_cpu_mask(cpu));
+ if (rc)
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error %d setting affinity hint for irq vector %u\n",
+ rc, ctrl_info->msix_vectors[i]);
+ cpu = cpumask_next(cpu, cpu_online_mask);
+ }
+}
+
+static void pqi_irq_unset_affinity_hint(struct pqi_ctrl_info *ctrl_info)
+{
+ int i;
+
+ for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
+ irq_set_affinity_hint(ctrl_info->msix_vectors[i], NULL);
+}
+
+static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ size_t alloc_length;
+ size_t element_array_length_per_iq;
+ size_t element_array_length_per_oq;
+ void *element_array;
+ void *next_queue_index;
+ void *aligned_pointer;
+ unsigned int num_inbound_queues;
+ unsigned int num_outbound_queues;
+ unsigned int num_queue_indexes;
+ struct pqi_queue_group *queue_group;
+
+ element_array_length_per_iq =
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH *
+ ctrl_info->num_elements_per_iq;
+ element_array_length_per_oq =
+ PQI_OPERATIONAL_OQ_ELEMENT_LENGTH *
+ ctrl_info->num_elements_per_oq;
+ num_inbound_queues = ctrl_info->num_queue_groups * 2;
+ num_outbound_queues = ctrl_info->num_queue_groups;
+ num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1;
+
+ aligned_pointer = NULL;
+
+ for (i = 0; i < num_inbound_queues; i++) {
+ aligned_pointer = PTR_ALIGN(aligned_pointer,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ aligned_pointer += element_array_length_per_iq;
+ }
+
+ for (i = 0; i < num_outbound_queues; i++) {
+ aligned_pointer = PTR_ALIGN(aligned_pointer,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ aligned_pointer += element_array_length_per_oq;
+ }
+
+ aligned_pointer = PTR_ALIGN(aligned_pointer,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS *
+ PQI_EVENT_OQ_ELEMENT_LENGTH;
+
+ for (i = 0; i < num_queue_indexes; i++) {
+ aligned_pointer = PTR_ALIGN(aligned_pointer,
+ PQI_OPERATIONAL_INDEX_ALIGNMENT);
+ aligned_pointer += sizeof(pqi_index_t);
+ }
+
+ alloc_length = (size_t)aligned_pointer +
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
+
+ ctrl_info->queue_memory_base =
+ dma_zalloc_coherent(&ctrl_info->pci_dev->dev,
+ alloc_length,
+ &ctrl_info->queue_memory_base_dma_handle, GFP_KERNEL);
+
+ if (!ctrl_info->queue_memory_base) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to allocate memory for PQI admin queues\n");
+ return -ENOMEM;
+ }
+
+ ctrl_info->queue_memory_length = alloc_length;
+
+ element_array = PTR_ALIGN(ctrl_info->queue_memory_base,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ queue_group = &ctrl_info->queue_groups[i];
+ queue_group->iq_element_array[RAID_PATH] = element_array;
+ queue_group->iq_element_array_bus_addr[RAID_PATH] =
+ ctrl_info->queue_memory_base_dma_handle +
+ (element_array - ctrl_info->queue_memory_base);
+ element_array += element_array_length_per_iq;
+ element_array = PTR_ALIGN(element_array,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ queue_group->iq_element_array[AIO_PATH] = element_array;
+ queue_group->iq_element_array_bus_addr[AIO_PATH] =
+ ctrl_info->queue_memory_base_dma_handle +
+ (element_array - ctrl_info->queue_memory_base);
+ element_array += element_array_length_per_iq;
+ element_array = PTR_ALIGN(element_array,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ }
+
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ queue_group = &ctrl_info->queue_groups[i];
+ queue_group->oq_element_array = element_array;
+ queue_group->oq_element_array_bus_addr =
+ ctrl_info->queue_memory_base_dma_handle +
+ (element_array - ctrl_info->queue_memory_base);
+ element_array += element_array_length_per_oq;
+ element_array = PTR_ALIGN(element_array,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ }
+
+ ctrl_info->event_queue.oq_element_array = element_array;
+ ctrl_info->event_queue.oq_element_array_bus_addr =
+ ctrl_info->queue_memory_base_dma_handle +
+ (element_array - ctrl_info->queue_memory_base);
+ element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS *
+ PQI_EVENT_OQ_ELEMENT_LENGTH;
+
+ next_queue_index = PTR_ALIGN(element_array,
+ PQI_OPERATIONAL_INDEX_ALIGNMENT);
+
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ queue_group = &ctrl_info->queue_groups[i];
+ queue_group->iq_ci[RAID_PATH] = next_queue_index;
+ queue_group->iq_ci_bus_addr[RAID_PATH] =
+ ctrl_info->queue_memory_base_dma_handle +
+ (next_queue_index - ctrl_info->queue_memory_base);
+ next_queue_index += sizeof(pqi_index_t);
+ next_queue_index = PTR_ALIGN(next_queue_index,
+ PQI_OPERATIONAL_INDEX_ALIGNMENT);
+ queue_group->iq_ci[AIO_PATH] = next_queue_index;
+ queue_group->iq_ci_bus_addr[AIO_PATH] =
+ ctrl_info->queue_memory_base_dma_handle +
+ (next_queue_index - ctrl_info->queue_memory_base);
+ next_queue_index += sizeof(pqi_index_t);
+ next_queue_index = PTR_ALIGN(next_queue_index,
+ PQI_OPERATIONAL_INDEX_ALIGNMENT);
+ queue_group->oq_pi = next_queue_index;
+ queue_group->oq_pi_bus_addr =
+ ctrl_info->queue_memory_base_dma_handle +
+ (next_queue_index - ctrl_info->queue_memory_base);
+ next_queue_index += sizeof(pqi_index_t);
+ next_queue_index = PTR_ALIGN(next_queue_index,
+ PQI_OPERATIONAL_INDEX_ALIGNMENT);
+ }
+
+ ctrl_info->event_queue.oq_pi = next_queue_index;
+ ctrl_info->event_queue.oq_pi_bus_addr =
+ ctrl_info->queue_memory_base_dma_handle +
+ (next_queue_index - ctrl_info->queue_memory_base);
+
+ return 0;
+}
+
+static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
+ u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
+
+ /*
+ * Initialize the backpointers to the controller structure in
+ * each operational queue group structure.
+ */
+ for (i = 0; i < ctrl_info->num_queue_groups; i++)
+ ctrl_info->queue_groups[i].ctrl_info = ctrl_info;
+
+ /*
+ * Assign IDs to all operational queues. Note that the IDs
+ * assigned to operational IQs are independent of the IDs
+ * assigned to operational OQs.
+ */
+ ctrl_info->event_queue.oq_id = next_oq_id++;
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++;
+ ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++;
+ ctrl_info->queue_groups[i].oq_id = next_oq_id++;
+ }
+
+ /*
+ * Assign MSI-X table entry indexes to all queues. Note that the
+ * interrupt for the event queue is shared with the first queue group.
+ */
+ ctrl_info->event_queue.int_msg_num = 0;
+ for (i = 0; i < ctrl_info->num_queue_groups; i++)
+ ctrl_info->queue_groups[i].int_msg_num = i;
+
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]);
+ spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]);
+ INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]);
+ INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]);
+ }
+}
+
+static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info)
+{
+ size_t alloc_length;
+ struct pqi_admin_queues_aligned *admin_queues_aligned;
+ struct pqi_admin_queues *admin_queues;
+
+ alloc_length = sizeof(struct pqi_admin_queues_aligned) +
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
+
+ ctrl_info->admin_queue_memory_base =
+ dma_zalloc_coherent(&ctrl_info->pci_dev->dev,
+ alloc_length,
+ &ctrl_info->admin_queue_memory_base_dma_handle,
+ GFP_KERNEL);
+
+ if (!ctrl_info->admin_queue_memory_base)
+ return -ENOMEM;
+
+ ctrl_info->admin_queue_memory_length = alloc_length;
+
+ admin_queues = &ctrl_info->admin_queues;
+ admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base,
+ PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
+ admin_queues->iq_element_array =
+ &admin_queues_aligned->iq_element_array;
+ admin_queues->oq_element_array =
+ &admin_queues_aligned->oq_element_array;
+ admin_queues->iq_ci = &admin_queues_aligned->iq_ci;
+ admin_queues->oq_pi = &admin_queues_aligned->oq_pi;
+
+ admin_queues->iq_element_array_bus_addr =
+ ctrl_info->admin_queue_memory_base_dma_handle +
+ (admin_queues->iq_element_array -
+ ctrl_info->admin_queue_memory_base);
+ admin_queues->oq_element_array_bus_addr =
+ ctrl_info->admin_queue_memory_base_dma_handle +
+ (admin_queues->oq_element_array -
+ ctrl_info->admin_queue_memory_base);
+ admin_queues->iq_ci_bus_addr =
+ ctrl_info->admin_queue_memory_base_dma_handle +
+ ((void *)admin_queues->iq_ci -
+ ctrl_info->admin_queue_memory_base);
+ admin_queues->oq_pi_bus_addr =
+ ctrl_info->admin_queue_memory_base_dma_handle +
+ ((void *)admin_queues->oq_pi -
+ ctrl_info->admin_queue_memory_base);
+
+ return 0;
+}
+
+#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ
+#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1
+
+static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info)
+{
+ struct pqi_device_registers __iomem *pqi_registers;
+ struct pqi_admin_queues *admin_queues;
+ unsigned long timeout;
+ u8 status;
+ u32 reg;
+
+ pqi_registers = ctrl_info->pqi_registers;
+ admin_queues = &ctrl_info->admin_queues;
+
+ writeq((u64)admin_queues->iq_element_array_bus_addr,
+ &pqi_registers->admin_iq_element_array_addr);
+ writeq((u64)admin_queues->oq_element_array_bus_addr,
+ &pqi_registers->admin_oq_element_array_addr);
+ writeq((u64)admin_queues->iq_ci_bus_addr,
+ &pqi_registers->admin_iq_ci_addr);
+ writeq((u64)admin_queues->oq_pi_bus_addr,
+ &pqi_registers->admin_oq_pi_addr);
+
+ reg = PQI_ADMIN_IQ_NUM_ELEMENTS |
+ (PQI_ADMIN_OQ_NUM_ELEMENTS) << 8 |
+ (admin_queues->int_msg_num << 16);
+ writel(reg, &pqi_registers->admin_iq_num_elements);
+ writel(PQI_CREATE_ADMIN_QUEUE_PAIR,
+ &pqi_registers->function_and_status_code);
+
+ timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies;
+ while (1) {
+ status = readb(&pqi_registers->function_and_status_code);
+ if (status == PQI_STATUS_IDLE)
+ break;
+ if (time_after(jiffies, timeout))
+ return -ETIMEDOUT;
+ msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS);
+ }
+
+ /*
+ * The offset registers are not initialized to the correct
+ * offsets until *after* the create admin queue pair command
+ * completes successfully.
+ */
+ admin_queues->iq_pi = ctrl_info->iomem_base +
+ PQI_DEVICE_REGISTERS_OFFSET +
+ readq(&pqi_registers->admin_iq_pi_offset);
+ admin_queues->oq_ci = ctrl_info->iomem_base +
+ PQI_DEVICE_REGISTERS_OFFSET +
+ readq(&pqi_registers->admin_oq_ci_offset);
+
+ return 0;
+}
+
+static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_general_admin_request *request)
+{
+ struct pqi_admin_queues *admin_queues;
+ void *next_element;
+ pqi_index_t iq_pi;
+
+ admin_queues = &ctrl_info->admin_queues;
+ iq_pi = admin_queues->iq_pi_copy;
+
+ next_element = admin_queues->iq_element_array +
+ (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH);
+
+ memcpy(next_element, request, sizeof(*request));
+
+ iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS;
+ admin_queues->iq_pi_copy = iq_pi;
+
+ /*
+ * This write notifies the controller that an IU is available to be
+ * processed.
+ */
+ writel(iq_pi, admin_queues->iq_pi);
+}
+
+static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_general_admin_response *response)
+{
+ struct pqi_admin_queues *admin_queues;
+ pqi_index_t oq_pi;
+ pqi_index_t oq_ci;
+ unsigned long timeout;
+
+ admin_queues = &ctrl_info->admin_queues;
+ oq_ci = admin_queues->oq_ci_copy;
+
+ timeout = (3 * HZ) + jiffies;
+
+ while (1) {
+ oq_pi = *admin_queues->oq_pi;
+ if (oq_pi != oq_ci)
+ break;
+ if (time_after(jiffies, timeout)) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "timed out waiting for admin response\n");
+ return -ETIMEDOUT;
+ }
+ usleep_range(1000, 2000);
+ }
+
+ memcpy(response, admin_queues->oq_element_array +
+ (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response));
+
+ oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS;
+ admin_queues->oq_ci_copy = oq_ci;
+ writel(oq_ci, admin_queues->oq_ci);
+
+ return 0;
+}
+
+static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_queue_group *queue_group, enum pqi_io_path path,
+ struct pqi_io_request *io_request)
+{
+ struct pqi_io_request *next;
+ void *next_element;
+ pqi_index_t iq_pi;
+ pqi_index_t iq_ci;
+ size_t iu_length;
+ unsigned long flags;
+ unsigned int num_elements_needed;
+ unsigned int num_elements_to_end_of_queue;
+ size_t copy_count;
+ struct pqi_iu_header *request;
+
+ spin_lock_irqsave(&queue_group->submit_lock[path], flags);
+
+ if (io_request)
+ list_add_tail(&io_request->request_list_entry,
+ &queue_group->request_list[path]);
+
+ iq_pi = queue_group->iq_pi_copy[path];
+
+ list_for_each_entry_safe(io_request, next,
+ &queue_group->request_list[path], request_list_entry) {
+
+ request = io_request->iu;
+
+ iu_length = get_unaligned_le16(&request->iu_length) +
+ PQI_REQUEST_HEADER_LENGTH;
+ num_elements_needed =
+ DIV_ROUND_UP(iu_length,
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+
+ iq_ci = *queue_group->iq_ci[path];
+
+ if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci,
+ ctrl_info->num_elements_per_iq))
+ break;
+
+ put_unaligned_le16(queue_group->oq_id,
+ &request->response_queue_id);
+
+ next_element = queue_group->iq_element_array[path] +
+ (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+
+ num_elements_to_end_of_queue =
+ ctrl_info->num_elements_per_iq - iq_pi;
+
+ if (num_elements_needed <= num_elements_to_end_of_queue) {
+ memcpy(next_element, request, iu_length);
+ } else {
+ copy_count = num_elements_to_end_of_queue *
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
+ memcpy(next_element, request, copy_count);
+ memcpy(queue_group->iq_element_array[path],
+ (u8 *)request + copy_count,
+ iu_length - copy_count);
+ }
+
+ iq_pi = (iq_pi + num_elements_needed) %
+ ctrl_info->num_elements_per_iq;
+
+ list_del(&io_request->request_list_entry);
+ }
+
+ if (iq_pi != queue_group->iq_pi_copy[path]) {
+ queue_group->iq_pi_copy[path] = iq_pi;
+ /*
+ * This write notifies the controller that one or more IUs are
+ * available to be processed.
+ */
+ writel(iq_pi, queue_group->iq_pi[path]);
+ }
+
+ spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
+}
+
+static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request,
+ void *context)
+{
+ struct completion *waiting = context;
+
+ complete(waiting);
+}
+
+static int pqi_submit_raid_request_synchronous_with_io_request(
+ struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request,
+ unsigned long timeout_msecs)
+{
+ int rc = 0;
+ DECLARE_COMPLETION_ONSTACK(wait);
+
+ io_request->io_complete_callback = pqi_raid_synchronous_complete;
+ io_request->context = &wait;
+
+ pqi_start_io(ctrl_info,
+ &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
+ io_request);
+
+ if (timeout_msecs == NO_TIMEOUT) {
+ wait_for_completion_io(&wait);
+ } else {
+ if (!wait_for_completion_io_timeout(&wait,
+ msecs_to_jiffies(timeout_msecs))) {
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "command timed out\n");
+ rc = -ETIMEDOUT;
+ }
+ }
+
+ return rc;
+}
+
+static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_iu_header *request, unsigned int flags,
+ struct pqi_raid_error_info *error_info, unsigned long timeout_msecs)
+{
+ int rc;
+ struct pqi_io_request *io_request;
+ unsigned long start_jiffies;
+ unsigned long msecs_blocked;
+ size_t iu_length;
+
+ /*
+ * Note that specifying PQI_SYNC_FLAGS_INTERRUPTABLE and a timeout value
+ * are mutually exclusive.
+ */
+
+ if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
+ if (down_interruptible(&ctrl_info->sync_request_sem))
+ return -ERESTARTSYS;
+ } else {
+ if (timeout_msecs == NO_TIMEOUT) {
+ down(&ctrl_info->sync_request_sem);
+ } else {
+ start_jiffies = jiffies;
+ if (down_timeout(&ctrl_info->sync_request_sem,
+ msecs_to_jiffies(timeout_msecs)))
+ return -ETIMEDOUT;
+ msecs_blocked =
+ jiffies_to_msecs(jiffies - start_jiffies);
+ if (msecs_blocked >= timeout_msecs)
+ return -ETIMEDOUT;
+ timeout_msecs -= msecs_blocked;
+ }
+ }
+
+ io_request = pqi_alloc_io_request(ctrl_info);
+
+ put_unaligned_le16(io_request->index,
+ &(((struct pqi_raid_path_request *)request)->request_id));
+
+ if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO)
+ ((struct pqi_raid_path_request *)request)->error_index =
+ ((struct pqi_raid_path_request *)request)->request_id;
+
+ iu_length = get_unaligned_le16(&request->iu_length) +
+ PQI_REQUEST_HEADER_LENGTH;
+ memcpy(io_request->iu, request, iu_length);
+
+ rc = pqi_submit_raid_request_synchronous_with_io_request(ctrl_info,
+ io_request, timeout_msecs);
+
+ if (error_info) {
+ if (io_request->error_info)
+ memcpy(error_info, io_request->error_info,
+ sizeof(*error_info));
+ else
+ memset(error_info, 0, sizeof(*error_info));
+ } else if (rc == 0 && io_request->error_info) {
+ u8 scsi_status;
+ struct pqi_raid_error_info *raid_error_info;
+
+ raid_error_info = io_request->error_info;
+ scsi_status = raid_error_info->status;
+
+ if (scsi_status == SAM_STAT_CHECK_CONDITION &&
+ raid_error_info->data_out_result ==
+ PQI_DATA_IN_OUT_UNDERFLOW)
+ scsi_status = SAM_STAT_GOOD;
+
+ if (scsi_status != SAM_STAT_GOOD)
+ rc = -EIO;
+ }
+
+ pqi_free_io_request(io_request);
+
+ up(&ctrl_info->sync_request_sem);
+
+ return rc;
+}
+
+static int pqi_validate_admin_response(
+ struct pqi_general_admin_response *response, u8 expected_function_code)
+{
+ if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN)
+ return -EINVAL;
+
+ if (get_unaligned_le16(&response->header.iu_length) !=
+ PQI_GENERAL_ADMIN_IU_LENGTH)
+ return -EINVAL;
+
+ if (response->function_code != expected_function_code)
+ return -EINVAL;
+
+ if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int pqi_submit_admin_request_synchronous(
+ struct pqi_ctrl_info *ctrl_info,
+ struct pqi_general_admin_request *request,
+ struct pqi_general_admin_response *response)
+{
+ int rc;
+
+ pqi_submit_admin_request(ctrl_info, request);
+
+ rc = pqi_poll_for_admin_response(ctrl_info, response);
+
+ if (rc == 0)
+ rc = pqi_validate_admin_response(response,
+ request->function_code);
+
+ return rc;
+}
+
+static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct pqi_general_admin_request request;
+ struct pqi_general_admin_response response;
+ struct pqi_device_capability *capability;
+ struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor;
+
+ capability = kmalloc(sizeof(*capability), GFP_KERNEL);
+ if (!capability)
+ return -ENOMEM;
+
+ memset(&request, 0, sizeof(request));
+
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ request.function_code =
+ PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY;
+ put_unaligned_le32(sizeof(*capability),
+ &request.data.report_device_capability.buffer_length);
+
+ rc = pqi_map_single(ctrl_info->pci_dev,
+ &request.data.report_device_capability.sg_descriptor,
+ capability, sizeof(*capability),
+ PCI_DMA_FROMDEVICE);
+ if (rc)
+ goto out;
+
+ rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+
+ pqi_pci_unmap(ctrl_info->pci_dev,
+ &request.data.report_device_capability.sg_descriptor, 1,
+ PCI_DMA_FROMDEVICE);
+
+ if (rc)
+ goto out;
+
+ if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) {
+ rc = -EIO;
+ goto out;
+ }
+
+ ctrl_info->max_inbound_queues =
+ get_unaligned_le16(&capability->max_inbound_queues);
+ ctrl_info->max_elements_per_iq =
+ get_unaligned_le16(&capability->max_elements_per_iq);
+ ctrl_info->max_iq_element_length =
+ get_unaligned_le16(&capability->max_iq_element_length)
+ * 16;
+ ctrl_info->max_outbound_queues =
+ get_unaligned_le16(&capability->max_outbound_queues);
+ ctrl_info->max_elements_per_oq =
+ get_unaligned_le16(&capability->max_elements_per_oq);
+ ctrl_info->max_oq_element_length =
+ get_unaligned_le16(&capability->max_oq_element_length)
+ * 16;
+
+ sop_iu_layer_descriptor =
+ &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP];
+
+ ctrl_info->max_inbound_iu_length_per_firmware =
+ get_unaligned_le16(
+ &sop_iu_layer_descriptor->max_inbound_iu_length);
+ ctrl_info->inbound_spanning_supported =
+ sop_iu_layer_descriptor->inbound_spanning_supported;
+ ctrl_info->outbound_spanning_supported =
+ sop_iu_layer_descriptor->outbound_spanning_supported;
+
+out:
+ kfree(capability);
+
+ return rc;
+}
+
+static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info)
+{
+ if (ctrl_info->max_iq_element_length <
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "max. inbound queue element length of %d is less than the required length of %d\n",
+ ctrl_info->max_iq_element_length,
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+ return -EINVAL;
+ }
+
+ if (ctrl_info->max_oq_element_length <
+ PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "max. outbound queue element length of %d is less than the required length of %d\n",
+ ctrl_info->max_oq_element_length,
+ PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
+ return -EINVAL;
+ }
+
+ if (ctrl_info->max_inbound_iu_length_per_firmware <
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "max. inbound IU length of %u is less than the min. required length of %d\n",
+ ctrl_info->max_inbound_iu_length_per_firmware,
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+ return -EINVAL;
+ }
+
+ if (!ctrl_info->inbound_spanning_supported) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "the controller does not support inbound spanning\n");
+ return -EINVAL;
+ }
+
+ if (ctrl_info->outbound_spanning_supported) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "the controller supports outbound spanning but this driver does not\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int pqi_delete_operational_queue(struct pqi_ctrl_info *ctrl_info,
+ bool inbound_queue, u16 queue_id)
+{
+ struct pqi_general_admin_request request;
+ struct pqi_general_admin_response response;
+
+ memset(&request, 0, sizeof(request));
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ if (inbound_queue)
+ request.function_code =
+ PQI_GENERAL_ADMIN_FUNCTION_DELETE_IQ;
+ else
+ request.function_code =
+ PQI_GENERAL_ADMIN_FUNCTION_DELETE_OQ;
+ put_unaligned_le16(queue_id,
+ &request.data.delete_operational_queue.queue_id);
+
+ return pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+}
+
+static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct pqi_event_queue *event_queue;
+ struct pqi_general_admin_request request;
+ struct pqi_general_admin_response response;
+
+ event_queue = &ctrl_info->event_queue;
+
+ /*
+ * Create OQ (Outbound Queue - device to host queue) to dedicate
+ * to events.
+ */
+ memset(&request, 0, sizeof(request));
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
+ put_unaligned_le16(event_queue->oq_id,
+ &request.data.create_operational_oq.queue_id);
+ put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr,
+ &request.data.create_operational_oq.element_array_addr);
+ put_unaligned_le64((u64)event_queue->oq_pi_bus_addr,
+ &request.data.create_operational_oq.pi_addr);
+ put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS,
+ &request.data.create_operational_oq.num_elements);
+ put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16,
+ &request.data.create_operational_oq.element_length);
+ request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
+ put_unaligned_le16(event_queue->int_msg_num,
+ &request.data.create_operational_oq.int_msg_num);
+
+ rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+ if (rc)
+ return rc;
+
+ event_queue->oq_ci = ctrl_info->iomem_base +
+ PQI_DEVICE_REGISTERS_OFFSET +
+ get_unaligned_le64(
+ &response.data.create_operational_oq.oq_ci_offset);
+
+ return 0;
+}
+
+static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ int rc;
+ struct pqi_queue_group *queue_group;
+ struct pqi_general_admin_request request;
+ struct pqi_general_admin_response response;
+
+ i = ctrl_info->num_active_queue_groups;
+ queue_group = &ctrl_info->queue_groups[i];
+
+ /*
+ * Create IQ (Inbound Queue - host to device queue) for
+ * RAID path.
+ */
+ memset(&request, 0, sizeof(request));
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
+ put_unaligned_le16(queue_group->iq_id[RAID_PATH],
+ &request.data.create_operational_iq.queue_id);
+ put_unaligned_le64(
+ (u64)queue_group->iq_element_array_bus_addr[RAID_PATH],
+ &request.data.create_operational_iq.element_array_addr);
+ put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH],
+ &request.data.create_operational_iq.ci_addr);
+ put_unaligned_le16(ctrl_info->num_elements_per_iq,
+ &request.data.create_operational_iq.num_elements);
+ put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
+ &request.data.create_operational_iq.element_length);
+ request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
+
+ rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error creating inbound RAID queue\n");
+ return rc;
+ }
+
+ queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base +
+ PQI_DEVICE_REGISTERS_OFFSET +
+ get_unaligned_le64(
+ &response.data.create_operational_iq.iq_pi_offset);
+
+ /*
+ * Create IQ (Inbound Queue - host to device queue) for
+ * Advanced I/O (AIO) path.
+ */
+ memset(&request, 0, sizeof(request));
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
+ put_unaligned_le16(queue_group->iq_id[AIO_PATH],
+ &request.data.create_operational_iq.queue_id);
+ put_unaligned_le64((u64)queue_group->
+ iq_element_array_bus_addr[AIO_PATH],
+ &request.data.create_operational_iq.element_array_addr);
+ put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH],
+ &request.data.create_operational_iq.ci_addr);
+ put_unaligned_le16(ctrl_info->num_elements_per_iq,
+ &request.data.create_operational_iq.num_elements);
+ put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
+ &request.data.create_operational_iq.element_length);
+ request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
+
+ rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error creating inbound AIO queue\n");
+ goto delete_inbound_queue_raid;
+ }
+
+ queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base +
+ PQI_DEVICE_REGISTERS_OFFSET +
+ get_unaligned_le64(
+ &response.data.create_operational_iq.iq_pi_offset);
+
+ /*
+ * Designate the 2nd IQ as the AIO path. By default, all IQs are
+ * assumed to be for RAID path I/O unless we change the queue's
+ * property.
+ */
+ memset(&request, 0, sizeof(request));
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY;
+ put_unaligned_le16(queue_group->iq_id[AIO_PATH],
+ &request.data.change_operational_iq_properties.queue_id);
+ put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE,
+ &request.data.change_operational_iq_properties.vendor_specific);
+
+ rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error changing queue property\n");
+ goto delete_inbound_queue_aio;
+ }
+
+ /*
+ * Create OQ (Outbound Queue - device to host queue).
+ */
+ memset(&request, 0, sizeof(request));
+ request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
+ put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
+ &request.header.iu_length);
+ request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
+ put_unaligned_le16(queue_group->oq_id,
+ &request.data.create_operational_oq.queue_id);
+ put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr,
+ &request.data.create_operational_oq.element_array_addr);
+ put_unaligned_le64((u64)queue_group->oq_pi_bus_addr,
+ &request.data.create_operational_oq.pi_addr);
+ put_unaligned_le16(ctrl_info->num_elements_per_oq,
+ &request.data.create_operational_oq.num_elements);
+ put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16,
+ &request.data.create_operational_oq.element_length);
+ request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
+ put_unaligned_le16(queue_group->int_msg_num,
+ &request.data.create_operational_oq.int_msg_num);
+
+ rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
+ &response);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error creating outbound queue\n");
+ goto delete_inbound_queue_aio;
+ }
+
+ queue_group->oq_ci = ctrl_info->iomem_base +
+ PQI_DEVICE_REGISTERS_OFFSET +
+ get_unaligned_le64(
+ &response.data.create_operational_oq.oq_ci_offset);
+
+ ctrl_info->num_active_queue_groups++;
+
+ return 0;
+
+delete_inbound_queue_aio:
+ pqi_delete_operational_queue(ctrl_info, true,
+ queue_group->iq_id[AIO_PATH]);
+
+delete_inbound_queue_raid:
+ pqi_delete_operational_queue(ctrl_info, true,
+ queue_group->iq_id[RAID_PATH]);
+
+ return rc;
+}
+
+static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ unsigned int i;
+
+ rc = pqi_create_event_queue(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error creating event queue\n");
+ return rc;
+ }
+
+ for (i = 0; i < ctrl_info->num_queue_groups; i++) {
+ rc = pqi_create_queue_group(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error creating queue group number %u/%u\n",
+ i, ctrl_info->num_queue_groups);
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
+#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \
+ (offsetof(struct pqi_event_config, descriptors) + \
+ (PQI_MAX_EVENT_DESCRIPTORS * sizeof(struct pqi_event_descriptor)))
+
+static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ unsigned int i;
+ struct pqi_event_config *event_config;
+ struct pqi_general_management_request request;
+
+ event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
+ GFP_KERNEL);
+ if (!event_config)
+ return -ENOMEM;
+
+ memset(&request, 0, sizeof(request));
+
+ request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
+ put_unaligned_le16(offsetof(struct pqi_general_management_request,
+ data.report_event_configuration.sg_descriptors[1]) -
+ PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
+ put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
+ &request.data.report_event_configuration.buffer_length);
+
+ rc = pqi_map_single(ctrl_info->pci_dev,
+ request.data.report_event_configuration.sg_descriptors,
+ event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
+ PCI_DMA_FROMDEVICE);
+ if (rc)
+ goto out;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
+ 0, NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev,
+ request.data.report_event_configuration.sg_descriptors, 1,
+ PCI_DMA_FROMDEVICE);
+
+ if (rc)
+ goto out;
+
+ for (i = 0; i < event_config->num_event_descriptors; i++)
+ put_unaligned_le16(ctrl_info->event_queue.oq_id,
+ &event_config->descriptors[i].oq_id);
+
+ memset(&request, 0, sizeof(request));
+
+ request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG;
+ put_unaligned_le16(offsetof(struct pqi_general_management_request,
+ data.report_event_configuration.sg_descriptors[1]) -
+ PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
+ put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
+ &request.data.report_event_configuration.buffer_length);
+
+ rc = pqi_map_single(ctrl_info->pci_dev,
+ request.data.report_event_configuration.sg_descriptors,
+ event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
+ PCI_DMA_TODEVICE);
+ if (rc)
+ goto out;
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
+ NULL, NO_TIMEOUT);
+
+ pqi_pci_unmap(ctrl_info->pci_dev,
+ request.data.report_event_configuration.sg_descriptors, 1,
+ PCI_DMA_TODEVICE);
+
+out:
+ kfree(event_config);
+
+ return rc;
+}
+
+static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ struct device *dev;
+ size_t sg_chain_buffer_length;
+ struct pqi_io_request *io_request;
+
+ if (!ctrl_info->io_request_pool)
+ return;
+
+ dev = &ctrl_info->pci_dev->dev;
+ sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
+ io_request = ctrl_info->io_request_pool;
+
+ for (i = 0; i < ctrl_info->max_io_slots; i++) {
+ kfree(io_request->iu);
+ if (!io_request->sg_chain_buffer)
+ break;
+ dma_free_coherent(dev, sg_chain_buffer_length,
+ io_request->sg_chain_buffer,
+ io_request->sg_chain_buffer_dma_handle);
+ io_request++;
+ }
+
+ kfree(ctrl_info->io_request_pool);
+ ctrl_info->io_request_pool = NULL;
+}
+
+static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info)
+{
+ ctrl_info->error_buffer = dma_zalloc_coherent(&ctrl_info->pci_dev->dev,
+ ctrl_info->error_buffer_length,
+ &ctrl_info->error_buffer_dma_handle, GFP_KERNEL);
+
+ if (!ctrl_info->error_buffer)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned int i;
+ void *sg_chain_buffer;
+ size_t sg_chain_buffer_length;
+ dma_addr_t sg_chain_buffer_dma_handle;
+ struct device *dev;
+ struct pqi_io_request *io_request;
+
+ ctrl_info->io_request_pool = kzalloc(ctrl_info->max_io_slots *
+ sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL);
+
+ if (!ctrl_info->io_request_pool) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to allocate I/O request pool\n");
+ goto error;
+ }
+
+ dev = &ctrl_info->pci_dev->dev;
+ sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
+ io_request = ctrl_info->io_request_pool;
+
+ for (i = 0; i < ctrl_info->max_io_slots; i++) {
+ io_request->iu =
+ kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL);
+
+ if (!io_request->iu) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to allocate IU buffers\n");
+ goto error;
+ }
+
+ sg_chain_buffer = dma_alloc_coherent(dev,
+ sg_chain_buffer_length, &sg_chain_buffer_dma_handle,
+ GFP_KERNEL);
+
+ if (!sg_chain_buffer) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to allocate PQI scatter-gather chain buffers\n");
+ goto error;
+ }
+
+ io_request->index = i;
+ io_request->sg_chain_buffer = sg_chain_buffer;
+ io_request->sg_chain_buffer_dma_handle =
+ sg_chain_buffer_dma_handle;
+ io_request++;
+ }
+
+ return 0;
+
+error:
+ pqi_free_all_io_requests(ctrl_info);
+
+ return -ENOMEM;
+}
+
+/*
+ * Calculate required resources that are sized based on max. outstanding
+ * requests and max. transfer size.
+ */
+
+static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
+{
+ u32 max_transfer_size;
+ u32 max_sg_entries;
+
+ ctrl_info->scsi_ml_can_queue =
+ ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS;
+ ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests;
+
+ ctrl_info->error_buffer_length =
+ ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
+
+ max_transfer_size =
+ min(ctrl_info->max_transfer_size, PQI_MAX_TRANSFER_SIZE);
+
+ max_sg_entries = max_transfer_size / PAGE_SIZE;
+
+ /* +1 to cover when the buffer is not page-aligned. */
+ max_sg_entries++;
+
+ max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries);
+
+ max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE;
+
+ ctrl_info->sg_chain_buffer_length =
+ max_sg_entries * sizeof(struct pqi_sg_descriptor);
+ ctrl_info->sg_tablesize = max_sg_entries;
+ ctrl_info->max_sectors = max_transfer_size / 512;
+}
+
+static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
+{
+ int num_cpus;
+ int max_queue_groups;
+ int num_queue_groups;
+ u16 num_elements_per_iq;
+ u16 num_elements_per_oq;
+
+ max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
+ ctrl_info->max_outbound_queues - 1);
+ max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
+
+ num_cpus = num_online_cpus();
+ num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
+ num_queue_groups = min(num_queue_groups, max_queue_groups);
+
+ ctrl_info->num_queue_groups = num_queue_groups;
+
+ /*
+ * Make sure that the max. inbound IU length is an even multiple
+ * of our inbound element length.
+ */
+ ctrl_info->max_inbound_iu_length =
+ (ctrl_info->max_inbound_iu_length_per_firmware /
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) *
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
+
+ num_elements_per_iq =
+ (ctrl_info->max_inbound_iu_length /
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+
+ /* Add one because one element in each queue is unusable. */
+ num_elements_per_iq++;
+
+ num_elements_per_iq = min(num_elements_per_iq,
+ ctrl_info->max_elements_per_iq);
+
+ num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1;
+ num_elements_per_oq = min(num_elements_per_oq,
+ ctrl_info->max_elements_per_oq);
+
+ ctrl_info->num_elements_per_iq = num_elements_per_iq;
+ ctrl_info->num_elements_per_oq = num_elements_per_oq;
+
+ ctrl_info->max_sg_per_iu =
+ ((ctrl_info->max_inbound_iu_length -
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
+ sizeof(struct pqi_sg_descriptor)) +
+ PQI_MAX_EMBEDDED_SG_DESCRIPTORS;
+}
+
+static inline void pqi_set_sg_descriptor(
+ struct pqi_sg_descriptor *sg_descriptor, struct scatterlist *sg)
+{
+ u64 address = (u64)sg_dma_address(sg);
+ unsigned int length = sg_dma_len(sg);
+
+ put_unaligned_le64(address, &sg_descriptor->address);
+ put_unaligned_le32(length, &sg_descriptor->length);
+ put_unaligned_le32(0, &sg_descriptor->flags);
+}
+
+static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
+ struct pqi_io_request *io_request)
+{
+ int i;
+ u16 iu_length;
+ int sg_count;
+ bool chained;
+ unsigned int num_sg_in_iu;
+ unsigned int max_sg_per_iu;
+ struct scatterlist *sg;
+ struct pqi_sg_descriptor *sg_descriptor;
+
+ sg_count = scsi_dma_map(scmd);
+ if (sg_count < 0)
+ return sg_count;
+
+ iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
+ PQI_REQUEST_HEADER_LENGTH;
+
+ if (sg_count == 0)
+ goto out;
+
+ sg = scsi_sglist(scmd);
+ sg_descriptor = request->sg_descriptors;
+ max_sg_per_iu = ctrl_info->max_sg_per_iu - 1;
+ chained = false;
+ num_sg_in_iu = 0;
+ i = 0;
+
+ while (1) {
+ pqi_set_sg_descriptor(sg_descriptor, sg);
+ if (!chained)
+ num_sg_in_iu++;
+ i++;
+ if (i == sg_count)
+ break;
+ sg_descriptor++;
+ if (i == max_sg_per_iu) {
+ put_unaligned_le64(
+ (u64)io_request->sg_chain_buffer_dma_handle,
+ &sg_descriptor->address);
+ put_unaligned_le32((sg_count - num_sg_in_iu)
+ * sizeof(*sg_descriptor),
+ &sg_descriptor->length);
+ put_unaligned_le32(CISS_SG_CHAIN,
+ &sg_descriptor->flags);
+ chained = true;
+ num_sg_in_iu++;
+ sg_descriptor = io_request->sg_chain_buffer;
+ }
+ sg = sg_next(sg);
+ }
+
+ put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
+ request->partial = chained;
+ iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
+
+out:
+ put_unaligned_le16(iu_length, &request->header.iu_length);
+
+ return 0;
+}
+
+static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
+ struct pqi_io_request *io_request)
+{
+ int i;
+ u16 iu_length;
+ int sg_count;
+ bool chained;
+ unsigned int num_sg_in_iu;
+ unsigned int max_sg_per_iu;
+ struct scatterlist *sg;
+ struct pqi_sg_descriptor *sg_descriptor;
+
+ sg_count = scsi_dma_map(scmd);
+ if (sg_count < 0)
+ return sg_count;
+
+ iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) -
+ PQI_REQUEST_HEADER_LENGTH;
+ num_sg_in_iu = 0;
+
+ if (sg_count == 0)
+ goto out;
+
+ sg = scsi_sglist(scmd);
+ sg_descriptor = request->sg_descriptors;
+ max_sg_per_iu = ctrl_info->max_sg_per_iu - 1;
+ chained = false;
+ i = 0;
+
+ while (1) {
+ pqi_set_sg_descriptor(sg_descriptor, sg);
+ if (!chained)
+ num_sg_in_iu++;
+ i++;
+ if (i == sg_count)
+ break;
+ sg_descriptor++;
+ if (i == max_sg_per_iu) {
+ put_unaligned_le64(
+ (u64)io_request->sg_chain_buffer_dma_handle,
+ &sg_descriptor->address);
+ put_unaligned_le32((sg_count - num_sg_in_iu)
+ * sizeof(*sg_descriptor),
+ &sg_descriptor->length);
+ put_unaligned_le32(CISS_SG_CHAIN,
+ &sg_descriptor->flags);
+ chained = true;
+ num_sg_in_iu++;
+ sg_descriptor = io_request->sg_chain_buffer;
+ }
+ sg = sg_next(sg);
+ }
+
+ put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
+ request->partial = chained;
+ iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
+
+out:
+ put_unaligned_le16(iu_length, &request->header.iu_length);
+ request->num_sg_descriptors = num_sg_in_iu;
+
+ return 0;
+}
+
+static void pqi_raid_io_complete(struct pqi_io_request *io_request,
+ void *context)
+{
+ struct scsi_cmnd *scmd;
+
+ scmd = io_request->scmd;
+ pqi_free_io_request(io_request);
+ scsi_dma_unmap(scmd);
+ pqi_scsi_done(scmd);
+}
+
+static int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
+ struct pqi_queue_group *queue_group)
+{
+ int rc;
+ size_t cdb_length;
+ struct pqi_io_request *io_request;
+ struct pqi_raid_path_request *request;
+
+ io_request = pqi_alloc_io_request(ctrl_info);
+ io_request->io_complete_callback = pqi_raid_io_complete;
+ io_request->scmd = scmd;
+
+ scmd->host_scribble = (unsigned char *)io_request;
+
+ request = io_request->iu;
+ memset(request, 0,
+ offsetof(struct pqi_raid_path_request, sg_descriptors));
+
+ request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
+ put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
+ request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
+ put_unaligned_le16(io_request->index, &request->request_id);
+ request->error_index = request->request_id;
+ memcpy(request->lun_number, device->scsi3addr,
+ sizeof(request->lun_number));
+
+ cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb));
+ memcpy(request->cdb, scmd->cmnd, cdb_length);
+
+ switch (cdb_length) {
+ case 6:
+ case 10:
+ case 12:
+ case 16:
+ /* No bytes in the Additional CDB bytes field */
+ request->additional_cdb_bytes_usage =
+ SOP_ADDITIONAL_CDB_BYTES_0;
+ break;
+ case 20:
+ /* 4 bytes in the Additional cdb field */
+ request->additional_cdb_bytes_usage =
+ SOP_ADDITIONAL_CDB_BYTES_4;
+ break;
+ case 24:
+ /* 8 bytes in the Additional cdb field */
+ request->additional_cdb_bytes_usage =
+ SOP_ADDITIONAL_CDB_BYTES_8;
+ break;
+ case 28:
+ /* 12 bytes in the Additional cdb field */
+ request->additional_cdb_bytes_usage =
+ SOP_ADDITIONAL_CDB_BYTES_12;
+ break;
+ case 32:
+ default:
+ /* 16 bytes in the Additional cdb field */
+ request->additional_cdb_bytes_usage =
+ SOP_ADDITIONAL_CDB_BYTES_16;
+ break;
+ }
+
+ switch (scmd->sc_data_direction) {
+ case DMA_TO_DEVICE:
+ request->data_direction = SOP_READ_FLAG;
+ break;
+ case DMA_FROM_DEVICE:
+ request->data_direction = SOP_WRITE_FLAG;
+ break;
+ case DMA_NONE:
+ request->data_direction = SOP_NO_DIRECTION_FLAG;
+ break;
+ case DMA_BIDIRECTIONAL:
+ request->data_direction = SOP_BIDIRECTIONAL;
+ break;
+ default:
+ dev_err(&ctrl_info->pci_dev->dev,
+ "unknown data direction: %d\n",
+ scmd->sc_data_direction);
+ WARN_ON(scmd->sc_data_direction);
+ break;
+ }
+
+ rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request);
+ if (rc) {
+ pqi_free_io_request(io_request);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request);
+
+ return 0;
+}
+
+static void pqi_aio_io_complete(struct pqi_io_request *io_request,
+ void *context)
+{
+ struct scsi_cmnd *scmd;
+
+ scmd = io_request->scmd;
+ scsi_dma_unmap(scmd);
+ if (io_request->status == -EAGAIN)
+ set_host_byte(scmd, DID_IMM_RETRY);
+ pqi_free_io_request(io_request);
+ pqi_scsi_done(scmd);
+}
+
+static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
+ struct pqi_queue_group *queue_group)
+{
+ return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
+ scmd->cmnd, scmd->cmd_len, queue_group, NULL);
+}
+
+static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
+ struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
+ unsigned int cdb_length, struct pqi_queue_group *queue_group,
+ struct pqi_encryption_info *encryption_info)
+{
+ int rc;
+ struct pqi_io_request *io_request;
+ struct pqi_aio_path_request *request;
+
+ io_request = pqi_alloc_io_request(ctrl_info);
+ io_request->io_complete_callback = pqi_aio_io_complete;
+ io_request->scmd = scmd;
+
+ scmd->host_scribble = (unsigned char *)io_request;
+
+ request = io_request->iu;
+ memset(request, 0,
+ offsetof(struct pqi_raid_path_request, sg_descriptors));
+
+ request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO;
+ put_unaligned_le32(aio_handle, &request->nexus_id);
+ put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
+ request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
+ put_unaligned_le16(io_request->index, &request->request_id);
+ request->error_index = request->request_id;
+ if (cdb_length > sizeof(request->cdb))
+ cdb_length = sizeof(request->cdb);
+ request->cdb_length = cdb_length;
+ memcpy(request->cdb, cdb, cdb_length);
+
+ switch (scmd->sc_data_direction) {
+ case DMA_TO_DEVICE:
+ request->data_direction = SOP_READ_FLAG;
+ break;
+ case DMA_FROM_DEVICE:
+ request->data_direction = SOP_WRITE_FLAG;
+ break;
+ case DMA_NONE:
+ request->data_direction = SOP_NO_DIRECTION_FLAG;
+ break;
+ case DMA_BIDIRECTIONAL:
+ request->data_direction = SOP_BIDIRECTIONAL;
+ break;
+ default:
+ dev_err(&ctrl_info->pci_dev->dev,
+ "unknown data direction: %d\n",
+ scmd->sc_data_direction);
+ WARN_ON(scmd->sc_data_direction);
+ break;
+ }
+
+ if (encryption_info) {
+ request->encryption_enable = true;
+ put_unaligned_le16(encryption_info->data_encryption_key_index,
+ &request->data_encryption_key_index);
+ put_unaligned_le32(encryption_info->encrypt_tweak_lower,
+ &request->encrypt_tweak_lower);
+ put_unaligned_le32(encryption_info->encrypt_tweak_upper,
+ &request->encrypt_tweak_upper);
+ }
+
+ rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request);
+ if (rc) {
+ pqi_free_io_request(io_request);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
+
+ return 0;
+}
+
+static int pqi_scsi_queue_command(struct Scsi_Host *shost,
+ struct scsi_cmnd *scmd)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_scsi_dev *device;
+ u16 hwq;
+ struct pqi_queue_group *queue_group;
+ bool raid_bypassed;
+
+ device = scmd->device->hostdata;
+ ctrl_info = shost_to_hba(shost);
+
+ if (pqi_ctrl_offline(ctrl_info)) {
+ set_host_byte(scmd, DID_NO_CONNECT);
+ pqi_scsi_done(scmd);
+ return 0;
+ }
+
+ /*
+ * This is necessary because the SML doesn't zero out this field during
+ * error recovery.
+ */
+ scmd->result = 0;
+
+ hwq = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request));
+ if (hwq >= ctrl_info->num_queue_groups)
+ hwq = 0;
+
+ queue_group = &ctrl_info->queue_groups[hwq];
+
+ if (pqi_is_logical_device(device)) {
+ raid_bypassed = false;
+ if (device->offload_enabled &&
+ scmd->request->cmd_type == REQ_TYPE_FS) {
+ rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device,
+ scmd, queue_group);
+ if (rc == 0 ||
+ rc == SCSI_MLQUEUE_HOST_BUSY ||
+ rc == SAM_STAT_CHECK_CONDITION ||
+ rc == SAM_STAT_RESERVATION_CONFLICT)
+ raid_bypassed = true;
+ }
+ if (!raid_bypassed)
+ rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd,
+ queue_group);
+ } else {
+ if (device->aio_enabled)
+ rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd,
+ queue_group);
+ else
+ rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd,
+ queue_group);
+ }
+
+ return rc;
+}
+
+static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
+ void *context)
+{
+ struct completion *waiting = context;
+
+ complete(waiting);
+}
+
+#define PQI_LUN_RESET_TIMEOUT_SECS 10
+
+static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct completion *wait)
+{
+ int rc;
+ unsigned int wait_secs = 0;
+
+ while (1) {
+ if (wait_for_completion_io_timeout(wait,
+ PQI_LUN_RESET_TIMEOUT_SECS * HZ)) {
+ rc = 0;
+ break;
+ }
+
+ pqi_check_ctrl_health(ctrl_info);
+ if (pqi_ctrl_offline(ctrl_info)) {
+ rc = -ETIMEDOUT;
+ break;
+ }
+
+ wait_secs += PQI_LUN_RESET_TIMEOUT_SECS;
+
+ dev_err(&ctrl_info->pci_dev->dev,
+ "resetting scsi %d:%d:%d:%d - waiting %u seconds\n",
+ ctrl_info->scsi_host->host_no, device->bus,
+ device->target, device->lun, wait_secs);
+ }
+
+ return rc;
+}
+
+static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ struct pqi_io_request *io_request;
+ DECLARE_COMPLETION_ONSTACK(wait);
+ struct pqi_task_management_request *request;
+
+ down(&ctrl_info->lun_reset_sem);
+
+ io_request = pqi_alloc_io_request(ctrl_info);
+ io_request->io_complete_callback = pqi_lun_reset_complete;
+ io_request->context = &wait;
+
+ request = io_request->iu;
+ memset(request, 0, sizeof(*request));
+
+ request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;
+ put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH,
+ &request->header.iu_length);
+ put_unaligned_le16(io_request->index, &request->request_id);
+ memcpy(request->lun_number, device->scsi3addr,
+ sizeof(request->lun_number));
+ request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET;
+
+ pqi_start_io(ctrl_info,
+ &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
+ io_request);
+
+ rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait);
+ if (rc == 0)
+ rc = io_request->status;
+
+ pqi_free_io_request(io_request);
+ up(&ctrl_info->lun_reset_sem);
+
+ return rc;
+}
+
+/* Performs a reset at the LUN level. */
+
+static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+
+ pqi_check_ctrl_health(ctrl_info);
+ if (pqi_ctrl_offline(ctrl_info))
+ return FAILED;
+
+ rc = pqi_lun_reset(ctrl_info, device);
+
+ return rc == 0 ? SUCCESS : FAILED;
+}
+
+static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_scsi_dev *device;
+
+ ctrl_info = shost_to_hba(scmd->device->host);
+ device = scmd->device->hostdata;
+
+ dev_err(&ctrl_info->pci_dev->dev,
+ "resetting scsi %d:%d:%d:%d\n",
+ ctrl_info->scsi_host->host_no,
+ device->bus, device->target, device->lun);
+
+ rc = pqi_device_reset(ctrl_info, device);
+
+ dev_err(&ctrl_info->pci_dev->dev,
+ "reset of scsi %d:%d:%d:%d: %s\n",
+ ctrl_info->scsi_host->host_no,
+ device->bus, device->target, device->lun,
+ rc == SUCCESS ? "SUCCESS" : "FAILED");
+
+ return rc;
+}
+
+static int pqi_slave_alloc(struct scsi_device *sdev)
+{
+ struct pqi_scsi_dev *device;
+ unsigned long flags;
+ struct pqi_ctrl_info *ctrl_info;
+ struct scsi_target *starget;
+ struct sas_rphy *rphy;
+
+ ctrl_info = shost_to_hba(sdev->host);
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) {
+ starget = scsi_target(sdev);
+ rphy = target_to_rphy(starget);
+ device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
+ if (device) {
+ device->target = sdev_id(sdev);
+ device->lun = sdev->lun;
+ device->target_lun_valid = true;
+ }
+ } else {
+ device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev),
+ sdev_id(sdev), sdev->lun);
+ }
+
+ if (device && device->expose_device) {
+ sdev->hostdata = device;
+ device->sdev = sdev;
+ if (device->queue_depth) {
+ device->advertised_queue_depth = device->queue_depth;
+ scsi_change_queue_depth(sdev,
+ device->advertised_queue_depth);
+ }
+ }
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return 0;
+}
+
+static int pqi_slave_configure(struct scsi_device *sdev)
+{
+ struct pqi_scsi_dev *device;
+
+ device = sdev->hostdata;
+ if (!device->expose_device)
+ sdev->no_uld_attach = true;
+
+ return 0;
+}
+
+static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info,
+ void __user *arg)
+{
+ struct pci_dev *pci_dev;
+ u32 subsystem_vendor;
+ u32 subsystem_device;
+ cciss_pci_info_struct pciinfo;
+
+ if (!arg)
+ return -EINVAL;
+
+ pci_dev = ctrl_info->pci_dev;
+
+ pciinfo.domain = pci_domain_nr(pci_dev->bus);
+ pciinfo.bus = pci_dev->bus->number;
+ pciinfo.dev_fn = pci_dev->devfn;
+ subsystem_vendor = pci_dev->subsystem_vendor;
+ subsystem_device = pci_dev->subsystem_device;
+ pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) |
+ subsystem_vendor;
+
+ if (copy_to_user(arg, &pciinfo, sizeof(pciinfo)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int pqi_getdrivver_ioctl(void __user *arg)
+{
+ u32 version;
+
+ if (!arg)
+ return -EINVAL;
+
+ version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) |
+ (DRIVER_RELEASE << 16) | DRIVER_REVISION;
+
+ if (copy_to_user(arg, &version, sizeof(version)))
+ return -EFAULT;
+
+ return 0;
+}
+
+struct ciss_error_info {
+ u8 scsi_status;
+ int command_status;
+ size_t sense_data_length;
+};
+
+static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info,
+ struct ciss_error_info *ciss_error_info)
+{
+ int ciss_cmd_status;
+ size_t sense_data_length;
+
+ switch (pqi_error_info->data_out_result) {
+ case PQI_DATA_IN_OUT_GOOD:
+ ciss_cmd_status = CISS_CMD_STATUS_SUCCESS;
+ break;
+ case PQI_DATA_IN_OUT_UNDERFLOW:
+ ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN;
+ break;
+ case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
+ ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN;
+ break;
+ case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
+ case PQI_DATA_IN_OUT_BUFFER_ERROR:
+ case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
+ case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
+ case PQI_DATA_IN_OUT_ERROR:
+ ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR;
+ break;
+ case PQI_DATA_IN_OUT_HARDWARE_ERROR:
+ case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
+ case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
+ case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
+ case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
+ case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
+ case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
+ case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
+ case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
+ case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
+ ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR;
+ break;
+ case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
+ ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT;
+ break;
+ case PQI_DATA_IN_OUT_ABORTED:
+ ciss_cmd_status = CISS_CMD_STATUS_ABORTED;
+ break;
+ case PQI_DATA_IN_OUT_TIMEOUT:
+ ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT;
+ break;
+ default:
+ ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS;
+ break;
+ }
+
+ sense_data_length =
+ get_unaligned_le16(&pqi_error_info->sense_data_length);
+ if (sense_data_length == 0)
+ sense_data_length =
+ get_unaligned_le16(&pqi_error_info->response_data_length);
+ if (sense_data_length)
+ if (sense_data_length > sizeof(pqi_error_info->data))
+ sense_data_length = sizeof(pqi_error_info->data);
+
+ ciss_error_info->scsi_status = pqi_error_info->status;
+ ciss_error_info->command_status = ciss_cmd_status;
+ ciss_error_info->sense_data_length = sense_data_length;
+}
+
+static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
+{
+ int rc;
+ char *kernel_buffer = NULL;
+ u16 iu_length;
+ size_t sense_data_length;
+ IOCTL_Command_struct iocommand;
+ struct pqi_raid_path_request request;
+ struct pqi_raid_error_info pqi_error_info;
+ struct ciss_error_info ciss_error_info;
+
+ if (pqi_ctrl_offline(ctrl_info))
+ return -ENXIO;
+ if (!arg)
+ return -EINVAL;
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
+ if (copy_from_user(&iocommand, arg, sizeof(iocommand)))
+ return -EFAULT;
+ if (iocommand.buf_size < 1 &&
+ iocommand.Request.Type.Direction != XFER_NONE)
+ return -EINVAL;
+ if (iocommand.Request.CDBLen > sizeof(request.cdb))
+ return -EINVAL;
+ if (iocommand.Request.Type.Type != TYPE_CMD)
+ return -EINVAL;
+
+ switch (iocommand.Request.Type.Direction) {
+ case XFER_NONE:
+ case XFER_WRITE:
+ case XFER_READ:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (iocommand.buf_size > 0) {
+ kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL);
+ if (!kernel_buffer)
+ return -ENOMEM;
+ if (iocommand.Request.Type.Direction & XFER_WRITE) {
+ if (copy_from_user(kernel_buffer, iocommand.buf,
+ iocommand.buf_size)) {
+ rc = -EFAULT;
+ goto out;
+ }
+ } else {
+ memset(kernel_buffer, 0, iocommand.buf_size);
+ }
+ }
+
+ memset(&request, 0, sizeof(request));
+
+ request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
+ iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
+ PQI_REQUEST_HEADER_LENGTH;
+ memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes,
+ sizeof(request.lun_number));
+ memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen);
+ request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
+
+ switch (iocommand.Request.Type.Direction) {
+ case XFER_NONE:
+ request.data_direction = SOP_NO_DIRECTION_FLAG;
+ break;
+ case XFER_WRITE:
+ request.data_direction = SOP_WRITE_FLAG;
+ break;
+ case XFER_READ:
+ request.data_direction = SOP_READ_FLAG;
+ break;
+ }
+
+ request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
+
+ if (iocommand.buf_size > 0) {
+ put_unaligned_le32(iocommand.buf_size, &request.buffer_length);
+
+ rc = pqi_map_single(ctrl_info->pci_dev,
+ &request.sg_descriptors[0], kernel_buffer,
+ iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
+ if (rc)
+ goto out;
+
+ iu_length += sizeof(request.sg_descriptors[0]);
+ }
+
+ put_unaligned_le16(iu_length, &request.header.iu_length);
+
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
+ PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info, NO_TIMEOUT);
+
+ if (iocommand.buf_size > 0)
+ pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
+ PCI_DMA_BIDIRECTIONAL);
+
+ memset(&iocommand.error_info, 0, sizeof(iocommand.error_info));
+
+ if (rc == 0) {
+ pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info);
+ iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status;
+ iocommand.error_info.CommandStatus =
+ ciss_error_info.command_status;
+ sense_data_length = ciss_error_info.sense_data_length;
+ if (sense_data_length) {
+ if (sense_data_length >
+ sizeof(iocommand.error_info.SenseInfo))
+ sense_data_length =
+ sizeof(iocommand.error_info.SenseInfo);
+ memcpy(iocommand.error_info.SenseInfo,
+ pqi_error_info.data, sense_data_length);
+ iocommand.error_info.SenseLen = sense_data_length;
+ }
+ }
+
+ if (copy_to_user(arg, &iocommand, sizeof(iocommand))) {
+ rc = -EFAULT;
+ goto out;
+ }
+
+ if (rc == 0 && iocommand.buf_size > 0 &&
+ (iocommand.Request.Type.Direction & XFER_READ)) {
+ if (copy_to_user(iocommand.buf, kernel_buffer,
+ iocommand.buf_size)) {
+ rc = -EFAULT;
+ }
+ }
+
+out:
+ kfree(kernel_buffer);
+
+ return rc;
+}
+
+static int pqi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = shost_to_hba(sdev->host);
+
+ switch (cmd) {
+ case CCISS_DEREGDISK:
+ case CCISS_REGNEWDISK:
+ case CCISS_REGNEWD:
+ rc = pqi_scan_scsi_devices(ctrl_info);
+ break;
+ case CCISS_GETPCIINFO:
+ rc = pqi_getpciinfo_ioctl(ctrl_info, arg);
+ break;
+ case CCISS_GETDRIVVER:
+ rc = pqi_getdrivver_ioctl(arg);
+ break;
+ case CCISS_PASSTHRU:
+ rc = pqi_passthru_ioctl(ctrl_info, arg);
+ break;
+ default:
+ rc = -EINVAL;
+ break;
+ }
+
+ return rc;
+}
+
+static ssize_t pqi_version_show(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ ssize_t count = 0;
+ struct Scsi_Host *shost;
+ struct pqi_ctrl_info *ctrl_info;
+
+ shost = class_to_shost(dev);
+ ctrl_info = shost_to_hba(shost);
+
+ count += snprintf(buffer + count, PAGE_SIZE - count,
+ " driver: %s\n", DRIVER_VERSION BUILD_TIMESTAMP);
+
+ count += snprintf(buffer + count, PAGE_SIZE - count,
+ "firmware: %s\n", ctrl_info->firmware_version);
+
+ return count;
+}
+
+static ssize_t pqi_host_rescan_store(struct device *dev,
+ struct device_attribute *attr, const char *buffer, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+
+ pqi_scan_start(shost);
+
+ return count;
+}
+
+static DEVICE_ATTR(version, S_IRUGO, pqi_version_show, NULL);
+static DEVICE_ATTR(rescan, S_IWUSR, NULL, pqi_host_rescan_store);
+
+static struct device_attribute *pqi_shost_attrs[] = {
+ &dev_attr_version,
+ &dev_attr_rescan,
+ NULL
+};
+
+static ssize_t pqi_sas_address_show(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct scsi_device *sdev;
+ struct pqi_scsi_dev *device;
+ unsigned long flags;
+ u64 sas_address;
+
+ sdev = to_scsi_device(dev);
+ ctrl_info = shost_to_hba(sdev->host);
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ device = sdev->hostdata;
+ if (pqi_is_logical_device(device)) {
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
+ flags);
+ return -ENODEV;
+ }
+ sas_address = device->sas_address;
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return snprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address);
+}
+
+static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct scsi_device *sdev;
+ struct pqi_scsi_dev *device;
+ unsigned long flags;
+
+ sdev = to_scsi_device(dev);
+ ctrl_info = shost_to_hba(sdev->host);
+
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+
+ device = sdev->hostdata;
+ buffer[0] = device->offload_enabled ? '1' : '0';
+ buffer[1] = '\n';
+ buffer[2] = '\0';
+
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return 2;
+}
+
+static DEVICE_ATTR(sas_address, S_IRUGO, pqi_sas_address_show, NULL);
+static DEVICE_ATTR(ssd_smart_path_enabled, S_IRUGO,
+ pqi_ssd_smart_path_enabled_show, NULL);
+
+static struct device_attribute *pqi_sdev_attrs[] = {
+ &dev_attr_sas_address,
+ &dev_attr_ssd_smart_path_enabled,
+ NULL
+};
+
+static struct scsi_host_template pqi_driver_template = {
+ .module = THIS_MODULE,
+ .name = DRIVER_NAME_SHORT,
+ .proc_name = DRIVER_NAME_SHORT,
+ .queuecommand = pqi_scsi_queue_command,
+ .scan_start = pqi_scan_start,
+ .scan_finished = pqi_scan_finished,
+ .this_id = -1,
+ .use_clustering = ENABLE_CLUSTERING,
+ .eh_device_reset_handler = pqi_eh_device_reset_handler,
+ .ioctl = pqi_ioctl,
+ .slave_alloc = pqi_slave_alloc,
+ .slave_configure = pqi_slave_configure,
+ .sdev_attrs = pqi_sdev_attrs,
+ .shost_attrs = pqi_shost_attrs,
+};
+
+static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct Scsi_Host *shost;
+
+ shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
+ if (!shost) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "scsi_host_alloc failed for controller %u\n",
+ ctrl_info->ctrl_id);
+ return -ENOMEM;
+ }
+
+ shost->io_port = 0;
+ shost->n_io_port = 0;
+ shost->this_id = -1;
+ shost->max_channel = PQI_MAX_BUS;
+ shost->max_cmd_len = MAX_COMMAND_SIZE;
+ shost->max_lun = ~0;
+ shost->max_id = ~0;
+ shost->max_sectors = ctrl_info->max_sectors;
+ shost->can_queue = ctrl_info->scsi_ml_can_queue;
+ shost->cmd_per_lun = shost->can_queue;
+ shost->sg_tablesize = ctrl_info->sg_tablesize;
+ shost->transportt = pqi_sas_transport_template;
+ shost->irq = ctrl_info->msix_vectors[0];
+ shost->unique_id = shost->irq;
+ shost->nr_hw_queues = ctrl_info->num_queue_groups;
+ shost->hostdata[0] = (unsigned long)ctrl_info;
+
+ rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "scsi_add_host failed for controller %u\n",
+ ctrl_info->ctrl_id);
+ goto free_host;
+ }
+
+ rc = pqi_add_sas_host(shost, ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "add SAS host failed for controller %u\n",
+ ctrl_info->ctrl_id);
+ goto remove_host;
+ }
+
+ ctrl_info->scsi_host = shost;
+
+ return 0;
+
+remove_host:
+ scsi_remove_host(shost);
+free_host:
+ scsi_host_put(shost);
+
+ return rc;
+}
+
+static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
+{
+ struct Scsi_Host *shost;
+
+ pqi_delete_sas_host(ctrl_info);
+
+ shost = ctrl_info->scsi_host;
+ if (!shost)
+ return;
+
+ scsi_remove_host(shost);
+ scsi_host_put(shost);
+}
+
+#define PQI_RESET_ACTION_RESET 0x1
+
+#define PQI_RESET_TYPE_NO_RESET 0x0
+#define PQI_RESET_TYPE_SOFT_RESET 0x1
+#define PQI_RESET_TYPE_FIRM_RESET 0x2
+#define PQI_RESET_TYPE_HARD_RESET 0x3
+
+static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ u32 reset_params;
+
+ reset_params = (PQI_RESET_ACTION_RESET << 5) |
+ PQI_RESET_TYPE_HARD_RESET;
+
+ writel(reset_params,
+ &ctrl_info->pqi_registers->device_reset);
+
+ rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
+ if (rc)
+ dev_err(&ctrl_info->pci_dev->dev,
+ "PQI reset failed\n");
+
+ return rc;
+}
+
+static int pqi_get_ctrl_firmware_version(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct bmic_identify_controller *identify;
+
+ identify = kmalloc(sizeof(*identify), GFP_KERNEL);
+ if (!identify)
+ return -ENOMEM;
+
+ rc = pqi_identify_controller(ctrl_info, identify);
+ if (rc)
+ goto out;
+
+ memcpy(ctrl_info->firmware_version, identify->firmware_version,
+ sizeof(identify->firmware_version));
+ ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0';
+ snprintf(ctrl_info->firmware_version +
+ strlen(ctrl_info->firmware_version),
+ sizeof(ctrl_info->firmware_version),
+ "-%u", get_unaligned_le16(&identify->firmware_build_number));
+
+out:
+ kfree(identify);
+
+ return rc;
+}
+
+static int pqi_kdump_init(struct pqi_ctrl_info *ctrl_info)
+{
+ if (!sis_is_firmware_running(ctrl_info))
+ return -ENXIO;
+
+ if (pqi_get_ctrl_mode(ctrl_info) == PQI_MODE) {
+ sis_disable_msix(ctrl_info);
+ if (pqi_reset(ctrl_info) == 0)
+ sis_reenable_sis_mode(ctrl_info);
+ }
+
+ return 0;
+}
+
+static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+
+ if (reset_devices) {
+ rc = pqi_kdump_init(ctrl_info);
+ if (rc)
+ return rc;
+ }
+
+ /*
+ * When the controller comes out of reset, it is always running
+ * in legacy SIS mode. This is so that it can be compatible
+ * with legacy drivers shipped with OSes. So we have to talk
+ * to it using SIS commands at first. Once we are satisified
+ * that the controller supports PQI, we transition it into PQI
+ * mode.
+ */
+
+ /*
+ * Wait until the controller is ready to start accepting SIS
+ * commands.
+ */
+ rc = sis_wait_for_ctrl_ready(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error initializing SIS interface\n");
+ return rc;
+ }
+
+ /*
+ * Get the controller properties. This allows us to determine
+ * whether or not it supports PQI mode.
+ */
+ rc = sis_get_ctrl_properties(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error obtaining controller properties\n");
+ return rc;
+ }
+
+ rc = sis_get_pqi_capabilities(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error obtaining controller capabilities\n");
+ return rc;
+ }
+
+ if (ctrl_info->max_outstanding_requests > PQI_MAX_OUTSTANDING_REQUESTS)
+ ctrl_info->max_outstanding_requests =
+ PQI_MAX_OUTSTANDING_REQUESTS;
+
+ pqi_calculate_io_resources(ctrl_info);
+
+ rc = pqi_alloc_error_buffer(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to allocate PQI error buffer\n");
+ return rc;
+ }
+
+ /*
+ * If the function we are about to call succeeds, the
+ * controller will transition from legacy SIS mode
+ * into PQI mode.
+ */
+ rc = sis_init_base_struct_addr(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error initializing PQI mode\n");
+ return rc;
+ }
+
+ /* Wait for the controller to complete the SIS -> PQI transition. */
+ rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "transition to PQI mode failed\n");
+ return rc;
+ }
+
+ /* From here on, we are running in PQI mode. */
+ ctrl_info->pqi_mode_enabled = true;
+ pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
+
+ rc = pqi_alloc_admin_queues(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error allocating admin queues\n");
+ return rc;
+ }
+
+ rc = pqi_create_admin_queues(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error creating admin queues\n");
+ return rc;
+ }
+
+ rc = pqi_report_device_capability(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "obtaining device capability failed\n");
+ return rc;
+ }
+
+ rc = pqi_validate_device_capability(ctrl_info);
+ if (rc)
+ return rc;
+
+ pqi_calculate_queue_resources(ctrl_info);
+
+ rc = pqi_enable_msix_interrupts(ctrl_info);
+ if (rc)
+ return rc;
+
+ if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) {
+ ctrl_info->max_msix_vectors =
+ ctrl_info->num_msix_vectors_enabled;
+ pqi_calculate_queue_resources(ctrl_info);
+ }
+
+ rc = pqi_alloc_io_resources(ctrl_info);
+ if (rc)
+ return rc;
+
+ rc = pqi_alloc_operational_queues(ctrl_info);
+ if (rc)
+ return rc;
+
+ pqi_init_operational_queues(ctrl_info);
+
+ rc = pqi_request_irqs(ctrl_info);
+ if (rc)
+ return rc;
+
+ pqi_irq_set_affinity_hint(ctrl_info);
+
+ rc = pqi_create_queues(ctrl_info);
+ if (rc)
+ return rc;
+
+ sis_enable_msix(ctrl_info);
+
+ rc = pqi_configure_events(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error configuring events\n");
+ return rc;
+ }
+
+ pqi_start_heartbeat_timer(ctrl_info);
+
+ ctrl_info->controller_online = true;
+
+ /* Register with the SCSI subsystem. */
+ rc = pqi_register_scsi(ctrl_info);
+ if (rc)
+ return rc;
+
+ rc = pqi_get_ctrl_firmware_version(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error obtaining firmware version\n");
+ return rc;
+ }
+
+ rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "error updating host wellness\n");
+ return rc;
+ }
+
+ pqi_schedule_update_time_worker(ctrl_info);
+
+ pqi_scan_scsi_devices(ctrl_info);
+
+ return 0;
+}
+
+static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ u64 mask;
+
+ rc = pci_enable_device(ctrl_info->pci_dev);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to enable PCI device\n");
+ return rc;
+ }
+
+ if (sizeof(dma_addr_t) > 4)
+ mask = DMA_BIT_MASK(64);
+ else
+ mask = DMA_BIT_MASK(32);
+
+ rc = dma_set_mask(&ctrl_info->pci_dev->dev, mask);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
+ goto disable_device;
+ }
+
+ rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT);
+ if (rc) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to obtain PCI resources\n");
+ goto disable_device;
+ }
+
+ ctrl_info->iomem_base = ioremap_nocache(pci_resource_start(
+ ctrl_info->pci_dev, 0),
+ sizeof(struct pqi_ctrl_registers));
+ if (!ctrl_info->iomem_base) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "failed to map memory for controller registers\n");
+ rc = -ENOMEM;
+ goto release_regions;
+ }
+
+ ctrl_info->registers = ctrl_info->iomem_base;
+ ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;
+
+ /* Enable bus mastering. */
+ pci_set_master(ctrl_info->pci_dev);
+
+ pci_set_drvdata(ctrl_info->pci_dev, ctrl_info);
+
+ return 0;
+
+release_regions:
+ pci_release_regions(ctrl_info->pci_dev);
+disable_device:
+ pci_disable_device(ctrl_info->pci_dev);
+
+ return rc;
+}
+
+static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info)
+{
+ iounmap(ctrl_info->iomem_base);
+ pci_release_regions(ctrl_info->pci_dev);
+ pci_disable_device(ctrl_info->pci_dev);
+ pci_set_drvdata(ctrl_info->pci_dev, NULL);
+}
+
+static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
+{
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info),
+ GFP_KERNEL, numa_node);
+ if (!ctrl_info)
+ return NULL;
+
+ mutex_init(&ctrl_info->scan_mutex);
+
+ INIT_LIST_HEAD(&ctrl_info->scsi_device_list);
+ spin_lock_init(&ctrl_info->scsi_device_list_lock);
+
+ INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
+ atomic_set(&ctrl_info->num_interrupts, 0);
+
+ INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
+ INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
+
+ sema_init(&ctrl_info->sync_request_sem,
+ PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
+ sema_init(&ctrl_info->lun_reset_sem, PQI_RESERVED_IO_SLOTS_LUN_RESET);
+
+ ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
+ ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
+
+ return ctrl_info;
+}
+
+static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info)
+{
+ kfree(ctrl_info);
+}
+
+static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info)
+{
+ pqi_irq_unset_affinity_hint(ctrl_info);
+ pqi_free_irqs(ctrl_info);
+ if (ctrl_info->num_msix_vectors_enabled)
+ pci_disable_msix(ctrl_info->pci_dev);
+}
+
+static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info)
+{
+ pqi_stop_heartbeat_timer(ctrl_info);
+ pqi_free_interrupts(ctrl_info);
+ if (ctrl_info->queue_memory_base)
+ dma_free_coherent(&ctrl_info->pci_dev->dev,
+ ctrl_info->queue_memory_length,
+ ctrl_info->queue_memory_base,
+ ctrl_info->queue_memory_base_dma_handle);
+ if (ctrl_info->admin_queue_memory_base)
+ dma_free_coherent(&ctrl_info->pci_dev->dev,
+ ctrl_info->admin_queue_memory_length,
+ ctrl_info->admin_queue_memory_base,
+ ctrl_info->admin_queue_memory_base_dma_handle);
+ pqi_free_all_io_requests(ctrl_info);
+ if (ctrl_info->error_buffer)
+ dma_free_coherent(&ctrl_info->pci_dev->dev,
+ ctrl_info->error_buffer_length,
+ ctrl_info->error_buffer,
+ ctrl_info->error_buffer_dma_handle);
+ if (ctrl_info->iomem_base)
+ pqi_cleanup_pci_init(ctrl_info);
+ pqi_free_ctrl_info(ctrl_info);
+}
+
+static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
+{
+ cancel_delayed_work_sync(&ctrl_info->rescan_work);
+ cancel_delayed_work_sync(&ctrl_info->update_time_work);
+ pqi_remove_all_scsi_devices(ctrl_info);
+ pqi_unregister_scsi(ctrl_info);
+
+ if (ctrl_info->pqi_mode_enabled) {
+ sis_disable_msix(ctrl_info);
+ if (pqi_reset(ctrl_info) == 0)
+ sis_reenable_sis_mode(ctrl_info);
+ }
+ pqi_free_ctrl_resources(ctrl_info);
+}
+
+static void pqi_print_ctrl_info(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ char *ctrl_description;
+
+ if (id->driver_data) {
+ ctrl_description = (char *)id->driver_data;
+ } else {
+ switch (id->subvendor) {
+ case PCI_VENDOR_ID_HP:
+ ctrl_description = hpe_branded_controller;
+ break;
+ case PCI_VENDOR_ID_ADAPTEC2:
+ default:
+ ctrl_description = microsemi_branded_controller;
+ break;
+ }
+ }
+
+ dev_info(&pdev->dev, "%s found\n", ctrl_description);
+}
+
+static int pqi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ int rc;
+ int node;
+ struct pqi_ctrl_info *ctrl_info;
+
+ pqi_print_ctrl_info(pdev, id);
+
+ if (pqi_disable_device_id_wildcards &&
+ id->subvendor == PCI_ANY_ID &&
+ id->subdevice == PCI_ANY_ID) {
+ dev_warn(&pdev->dev,
+ "controller not probed because device ID wildcards are disabled\n");
+ return -ENODEV;
+ }
+
+ if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID)
+ dev_warn(&pdev->dev,
+ "controller device ID matched using wildcards\n");
+
+ node = dev_to_node(&pdev->dev);
+ if (node == NUMA_NO_NODE)
+ set_dev_node(&pdev->dev, 0);
+
+ ctrl_info = pqi_alloc_ctrl_info(node);
+ if (!ctrl_info) {
+ dev_err(&pdev->dev,
+ "failed to allocate controller info block\n");
+ return -ENOMEM;
+ }
+
+ ctrl_info->pci_dev = pdev;
+
+ rc = pqi_pci_init(ctrl_info);
+ if (rc)
+ goto error;
+
+ rc = pqi_ctrl_init(ctrl_info);
+ if (rc)
+ goto error;
+
+ return 0;
+
+error:
+ pqi_remove_ctrl(ctrl_info);
+
+ return rc;
+}
+
+static void pqi_pci_remove(struct pci_dev *pdev)
+{
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = pci_get_drvdata(pdev);
+ if (!ctrl_info)
+ return;
+
+ pqi_remove_ctrl(ctrl_info);
+}
+
+static void pqi_shutdown(struct pci_dev *pdev)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info;
+
+ ctrl_info = pci_get_drvdata(pdev);
+ if (!ctrl_info)
+ goto error;
+
+ /*
+ * Write all data in the controller's battery-backed cache to
+ * storage.
+ */
+ rc = pqi_flush_cache(ctrl_info);
+ if (rc == 0)
+ return;
+
+error:
+ dev_warn(&pdev->dev,
+ "unable to flush controller cache\n");
+}
+
+/* Define the PCI IDs for the controllers that we support. */
+static const struct pci_device_id pqi_pci_id_table[] = {
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0110)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0600)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0601)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0602)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0603)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0650)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0651)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0652)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0653)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0654)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0655)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0700)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x0701)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0800)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0801)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0802)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0803)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0804)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0805)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0900)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0901)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0902)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0903)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0904)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0905)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_ADAPTEC2, 0x0906)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x1001)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x1100)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x1101)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x1102)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_VENDOR_ID_HP, 0x1150)
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+ PCI_ANY_ID, PCI_ANY_ID)
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(pci, pqi_pci_id_table);
+
+static struct pci_driver pqi_pci_driver = {
+ .name = DRIVER_NAME_SHORT,
+ .id_table = pqi_pci_id_table,
+ .probe = pqi_pci_probe,
+ .remove = pqi_pci_remove,
+ .shutdown = pqi_shutdown,
+};
+
+static int __init pqi_init(void)
+{
+ int rc;
+
+ pr_info(DRIVER_NAME "\n");
+
+ pqi_sas_transport_template =
+ sas_attach_transport(&pqi_sas_transport_functions);
+ if (!pqi_sas_transport_template)
+ return -ENODEV;
+
+ rc = pci_register_driver(&pqi_pci_driver);
+ if (rc)
+ sas_release_transport(pqi_sas_transport_template);
+
+ return rc;
+}
+
+static void __exit pqi_cleanup(void)
+{
+ pci_unregister_driver(&pqi_pci_driver);
+ sas_release_transport(pqi_sas_transport_template);
+}
+
+module_init(pqi_init);
+module_exit(pqi_cleanup);
+
+static void __attribute__((unused)) verify_structures(void)
+{
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_host_to_ctrl_doorbell) != 0x20);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_interrupt_mask) != 0x34);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_ctrl_to_host_doorbell) != 0x9c);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_ctrl_to_host_doorbell_clear) != 0xa0);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_driver_scratch) != 0xb0);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_firmware_status) != 0xbc);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ sis_mailbox) != 0x1000);
+ BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
+ pqi_registers) != 0x4000);
+
+ BUILD_BUG_ON(offsetof(struct pqi_iu_header,
+ iu_type) != 0x0);
+ BUILD_BUG_ON(offsetof(struct pqi_iu_header,
+ iu_length) != 0x2);
+ BUILD_BUG_ON(offsetof(struct pqi_iu_header,
+ response_queue_id) != 0x4);
+ BUILD_BUG_ON(offsetof(struct pqi_iu_header,
+ work_area) != 0x6);
+ BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
+
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ status) != 0x0);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ service_response) != 0x1);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ data_present) != 0x2);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ reserved) != 0x3);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ residual_count) != 0x4);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ data_length) != 0x8);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ reserved1) != 0xa);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
+ data) != 0xc);
+ BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c);
+
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ data_in_result) != 0x0);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ data_out_result) != 0x1);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ reserved) != 0x2);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ status) != 0x5);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ status_qualifier) != 0x6);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ sense_data_length) != 0x8);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ response_data_length) != 0xa);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ data_in_transferred) != 0xc);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ data_out_transferred) != 0x10);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
+ data) != 0x14);
+ BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114);
+
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ signature) != 0x0);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ function_and_status_code) != 0x8);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ max_admin_iq_elements) != 0x10);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ max_admin_oq_elements) != 0x11);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_iq_element_length) != 0x12);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_oq_element_length) != 0x13);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ max_reset_timeout) != 0x14);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ legacy_intx_status) != 0x18);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ legacy_intx_mask_set) != 0x1c);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ legacy_intx_mask_clear) != 0x20);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ device_status) != 0x40);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_iq_pi_offset) != 0x48);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_oq_ci_offset) != 0x50);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_iq_element_array_addr) != 0x58);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_oq_element_array_addr) != 0x60);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_iq_ci_addr) != 0x68);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_oq_pi_addr) != 0x70);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_iq_num_elements) != 0x78);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_oq_num_elements) != 0x79);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ admin_queue_int_msg_num) != 0x7a);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ device_error) != 0x80);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ error_details) != 0x88);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ device_reset) != 0x90);
+ BUILD_BUG_ON(offsetof(struct pqi_device_registers,
+ power_action) != 0x94);
+ BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100);
+
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ header.work_area) != 6);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ function_code) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.report_device_capability.buffer_length) != 44);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.report_device_capability.sg_descriptor) != 48);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_iq.queue_id) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_iq.element_array_addr) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_iq.ci_addr) != 24);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_iq.num_elements) != 32);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_iq.element_length) != 34);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_iq.queue_protocol) != 36);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.queue_id) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.element_array_addr) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.pi_addr) != 24);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.num_elements) != 32);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.element_length) != 34);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.queue_protocol) != 36);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.int_msg_num) != 40);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.coalescing_count) != 42);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.min_coalescing_time) != 44);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.create_operational_oq.max_coalescing_time) != 48);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
+ data.delete_operational_queue.queue_id) != 12);
+ BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64);
+ BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request,
+ data.create_operational_iq) != 64 - 11);
+ BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request,
+ data.create_operational_oq) != 64 - 11);
+ BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request,
+ data.delete_operational_queue) != 64 - 11);
+
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ header.work_area) != 6);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ function_code) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ status) != 11);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ data.create_operational_iq.status_descriptor) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ data.create_operational_iq.iq_pi_offset) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ data.create_operational_oq.status_descriptor) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
+ data.create_operational_oq.oq_ci_offset) != 16);
+ BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64);
+
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ header.response_queue_id) != 4);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ header.work_area) != 6);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ nexus_id) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ buffer_length) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ lun_number) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ protocol_specific) != 24);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ error_index) != 27);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ cdb) != 32);
+ BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
+ sg_descriptors) != 64);
+ BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) !=
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ header.response_queue_id) != 4);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ header.work_area) != 6);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ nexus_id) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ buffer_length) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ data_encryption_key_index) != 22);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ encrypt_tweak_lower) != 24);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ encrypt_tweak_upper) != 28);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ cdb) != 32);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ error_index) != 48);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ num_sg_descriptors) != 50);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ cdb_length) != 51);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ lun_number) != 52);
+ BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
+ sg_descriptors) != 64);
+ BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) !=
+ PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
+
+ BUILD_BUG_ON(offsetof(struct pqi_io_response,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_io_response,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_io_response,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_io_response,
+ error_index) != 10);
+
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ header.response_queue_id) != 4);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ data.report_event_configuration.buffer_length) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ data.report_event_configuration.sg_descriptors) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ data.set_event_configuration.global_event_oq_id) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ data.set_event_configuration.buffer_length) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
+ data.set_event_configuration.sg_descriptors) != 16);
+
+ BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
+ max_inbound_iu_length) != 6);
+ BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
+ max_outbound_iu_length) != 14);
+ BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16);
+
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ data_length) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ iq_arbitration_priority_support_bitmask) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ maximum_aw_a) != 9);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ maximum_aw_b) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ maximum_aw_c) != 11);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ max_inbound_queues) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ max_elements_per_iq) != 18);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ max_iq_element_length) != 24);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ min_iq_element_length) != 26);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ max_outbound_queues) != 30);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ max_elements_per_oq) != 32);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ intr_coalescing_time_granularity) != 34);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ max_oq_element_length) != 36);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ min_oq_element_length) != 38);
+ BUILD_BUG_ON(offsetof(struct pqi_device_capability,
+ iu_layer_descriptors) != 64);
+ BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576);
+
+ BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
+ event_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
+ oq_id) != 2);
+ BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4);
+
+ BUILD_BUG_ON(offsetof(struct pqi_event_config,
+ num_event_descriptors) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_event_config,
+ descriptors) != 4);
+
+ BUILD_BUG_ON(offsetof(struct pqi_event_response,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_event_response,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_event_response,
+ event_type) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_event_response,
+ event_id) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_event_response,
+ additional_event_id) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_event_response,
+ data) != 16);
+ BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32);
+
+ BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
+ event_type) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
+ event_id) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
+ additional_event_id) != 12);
+ BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16);
+
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ nexus_id) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ lun_number) != 16);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ protocol_specific) != 24);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ outbound_queue_id_to_manage) != 26);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ request_id_to_manage) != 28);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
+ task_management_function) != 30);
+ BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32);
+
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
+ header.iu_type) != 0);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
+ header.iu_length) != 2);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
+ request_id) != 8);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
+ nexus_id) != 10);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
+ additional_response_info) != 12);
+ BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
+ response_code) != 15);
+ BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16);
+
+ BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+ configured_logical_drive_count) != 0);
+ BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+ configuration_signature) != 1);
+ BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+ firmware_version) != 5);
+ BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+ extended_logical_unit_count) != 154);
+ BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+ firmware_build_number) != 190);
+ BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+ controller_mode) != 292);
+
+ BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255);
+ BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255);
+ BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH %
+ PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
+ BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH %
+ PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
+ BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560);
+ BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH %
+ PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
+ BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560);
+ BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH %
+ PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
+
+ BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS);
+}
--- /dev/null
+/*
+ * driver for Microsemi PQI-based storage controllers
+ * Copyright (c) 2016 Microsemi Corporation
+ * Copyright (c) 2016 PMC-Sierra, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more details.
+ *
+ * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
+ *
+ */
+
+#include <linux/kernel.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_transport_sas.h>
+#include "smartpqi.h"
+
+static struct pqi_sas_phy *pqi_alloc_sas_phy(struct pqi_sas_port *pqi_sas_port)
+{
+ struct pqi_sas_phy *pqi_sas_phy;
+ struct sas_phy *phy;
+
+ pqi_sas_phy = kzalloc(sizeof(*pqi_sas_phy), GFP_KERNEL);
+ if (!pqi_sas_phy)
+ return NULL;
+
+ phy = sas_phy_alloc(pqi_sas_port->parent_node->parent_dev,
+ pqi_sas_port->next_phy_index);
+ if (!phy) {
+ kfree(pqi_sas_phy);
+ return NULL;
+ }
+
+ pqi_sas_port->next_phy_index++;
+ pqi_sas_phy->phy = phy;
+ pqi_sas_phy->parent_port = pqi_sas_port;
+
+ return pqi_sas_phy;
+}
+
+static void pqi_free_sas_phy(struct pqi_sas_phy *pqi_sas_phy)
+{
+ struct sas_phy *phy = pqi_sas_phy->phy;
+
+ sas_port_delete_phy(pqi_sas_phy->parent_port->port, phy);
+ sas_phy_free(phy);
+ if (pqi_sas_phy->added_to_port)
+ list_del(&pqi_sas_phy->phy_list_entry);
+ kfree(pqi_sas_phy);
+}
+
+static int pqi_sas_port_add_phy(struct pqi_sas_phy *pqi_sas_phy)
+{
+ int rc;
+ struct pqi_sas_port *pqi_sas_port;
+ struct sas_phy *phy;
+ struct sas_identify *identify;
+
+ pqi_sas_port = pqi_sas_phy->parent_port;
+ phy = pqi_sas_phy->phy;
+
+ identify = &phy->identify;
+ memset(identify, 0, sizeof(*identify));
+ identify->sas_address = pqi_sas_port->sas_address;
+ identify->device_type = SAS_END_DEVICE;
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+ phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+ phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+ phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
+ phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
+ phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+
+ rc = sas_phy_add(pqi_sas_phy->phy);
+ if (rc)
+ return rc;
+
+ sas_port_add_phy(pqi_sas_port->port, pqi_sas_phy->phy);
+ list_add_tail(&pqi_sas_phy->phy_list_entry,
+ &pqi_sas_port->phy_list_head);
+ pqi_sas_phy->added_to_port = true;
+
+ return 0;
+}
+
+static int pqi_sas_port_add_rphy(struct pqi_sas_port *pqi_sas_port,
+ struct sas_rphy *rphy)
+{
+ struct sas_identify *identify;
+
+ identify = &rphy->identify;
+ identify->sas_address = pqi_sas_port->sas_address;
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+
+ return sas_rphy_add(rphy);
+}
+
+static struct pqi_sas_port *pqi_alloc_sas_port(
+ struct pqi_sas_node *pqi_sas_node, u64 sas_address)
+{
+ int rc;
+ struct pqi_sas_port *pqi_sas_port;
+ struct sas_port *port;
+
+ pqi_sas_port = kzalloc(sizeof(*pqi_sas_port), GFP_KERNEL);
+ if (!pqi_sas_port)
+ return NULL;
+
+ INIT_LIST_HEAD(&pqi_sas_port->phy_list_head);
+ pqi_sas_port->parent_node = pqi_sas_node;
+
+ port = sas_port_alloc_num(pqi_sas_node->parent_dev);
+ if (!port)
+ goto free_pqi_port;
+
+ rc = sas_port_add(port);
+ if (rc)
+ goto free_sas_port;
+
+ pqi_sas_port->port = port;
+ pqi_sas_port->sas_address = sas_address;
+ list_add_tail(&pqi_sas_port->port_list_entry,
+ &pqi_sas_node->port_list_head);
+
+ return pqi_sas_port;
+
+free_sas_port:
+ sas_port_free(port);
+free_pqi_port:
+ kfree(pqi_sas_port);
+
+ return NULL;
+}
+
+static void pqi_free_sas_port(struct pqi_sas_port *pqi_sas_port)
+{
+ struct pqi_sas_phy *pqi_sas_phy;
+ struct pqi_sas_phy *next;
+
+ list_for_each_entry_safe(pqi_sas_phy, next,
+ &pqi_sas_port->phy_list_head, phy_list_entry)
+ pqi_free_sas_phy(pqi_sas_phy);
+
+ sas_port_delete(pqi_sas_port->port);
+ list_del(&pqi_sas_port->port_list_entry);
+ kfree(pqi_sas_port);
+}
+
+static struct pqi_sas_node *pqi_alloc_sas_node(struct device *parent_dev)
+{
+ struct pqi_sas_node *pqi_sas_node;
+
+ pqi_sas_node = kzalloc(sizeof(*pqi_sas_node), GFP_KERNEL);
+ if (pqi_sas_node) {
+ pqi_sas_node->parent_dev = parent_dev;
+ INIT_LIST_HEAD(&pqi_sas_node->port_list_head);
+ }
+
+ return pqi_sas_node;
+}
+
+static void pqi_free_sas_node(struct pqi_sas_node *pqi_sas_node)
+{
+ struct pqi_sas_port *pqi_sas_port;
+ struct pqi_sas_port *next;
+
+ if (!pqi_sas_node)
+ return;
+
+ list_for_each_entry_safe(pqi_sas_port, next,
+ &pqi_sas_node->port_list_head, port_list_entry)
+ pqi_free_sas_port(pqi_sas_port);
+
+ kfree(pqi_sas_node);
+}
+
+struct pqi_scsi_dev *pqi_find_device_by_sas_rphy(
+ struct pqi_ctrl_info *ctrl_info, struct sas_rphy *rphy)
+{
+ struct pqi_scsi_dev *device;
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (!device->sas_port)
+ continue;
+ if (device->sas_port->rphy == rphy)
+ return device;
+ }
+
+ return NULL;
+}
+
+int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct device *parent_dev;
+ struct pqi_sas_node *pqi_sas_node;
+ struct pqi_sas_port *pqi_sas_port;
+ struct pqi_sas_phy *pqi_sas_phy;
+
+ parent_dev = &shost->shost_gendev;
+
+ pqi_sas_node = pqi_alloc_sas_node(parent_dev);
+ if (!pqi_sas_node)
+ return -ENOMEM;
+
+ pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node, ctrl_info->sas_address);
+ if (!pqi_sas_port) {
+ rc = -ENODEV;
+ goto free_sas_node;
+ }
+
+ pqi_sas_phy = pqi_alloc_sas_phy(pqi_sas_port);
+ if (!pqi_sas_phy) {
+ rc = -ENODEV;
+ goto free_sas_port;
+ }
+
+ rc = pqi_sas_port_add_phy(pqi_sas_phy);
+ if (rc)
+ goto free_sas_phy;
+
+ ctrl_info->sas_host = pqi_sas_node;
+
+ return 0;
+
+free_sas_phy:
+ pqi_free_sas_phy(pqi_sas_phy);
+free_sas_port:
+ pqi_free_sas_port(pqi_sas_port);
+free_sas_node:
+ pqi_free_sas_node(pqi_sas_node);
+
+ return rc;
+}
+
+void pqi_delete_sas_host(struct pqi_ctrl_info *ctrl_info)
+{
+ pqi_free_sas_node(ctrl_info->sas_host);
+}
+
+int pqi_add_sas_device(struct pqi_sas_node *pqi_sas_node,
+ struct pqi_scsi_dev *device)
+{
+ int rc;
+ struct pqi_sas_port *pqi_sas_port;
+ struct sas_rphy *rphy;
+
+ pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node, device->sas_address);
+ if (!pqi_sas_port)
+ return -ENOMEM;
+
+ rphy = sas_end_device_alloc(pqi_sas_port->port);
+ if (!rphy) {
+ rc = -ENODEV;
+ goto free_sas_port;
+ }
+
+ pqi_sas_port->rphy = rphy;
+ device->sas_port = pqi_sas_port;
+
+ rc = pqi_sas_port_add_rphy(pqi_sas_port, rphy);
+ if (rc)
+ goto free_sas_port;
+
+ return 0;
+
+free_sas_port:
+ pqi_free_sas_port(pqi_sas_port);
+ device->sas_port = NULL;
+
+ return rc;
+}
+
+void pqi_remove_sas_device(struct pqi_scsi_dev *device)
+{
+ if (device->sas_port) {
+ pqi_free_sas_port(device->sas_port);
+ device->sas_port = NULL;
+ }
+}
+
+static int pqi_sas_get_linkerrors(struct sas_phy *phy)
+{
+ return 0;
+}
+
+static int pqi_sas_get_enclosure_identifier(struct sas_rphy *rphy,
+ u64 *identifier)
+{
+ return 0;
+}
+
+static int pqi_sas_get_bay_identifier(struct sas_rphy *rphy)
+{
+ return -ENXIO;
+}
+
+static int pqi_sas_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+ return 0;
+}
+
+static int pqi_sas_phy_enable(struct sas_phy *phy, int enable)
+{
+ return 0;
+}
+
+static int pqi_sas_phy_setup(struct sas_phy *phy)
+{
+ return 0;
+}
+
+static void pqi_sas_phy_release(struct sas_phy *phy)
+{
+}
+
+static int pqi_sas_phy_speed(struct sas_phy *phy,
+ struct sas_phy_linkrates *rates)
+{
+ return -EINVAL;
+}
+
+/* SMP = Serial Management Protocol */
+
+static int pqi_sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
+ struct request *req)
+{
+ return -EINVAL;
+}
+
+struct sas_function_template pqi_sas_transport_functions = {
+ .get_linkerrors = pqi_sas_get_linkerrors,
+ .get_enclosure_identifier = pqi_sas_get_enclosure_identifier,
+ .get_bay_identifier = pqi_sas_get_bay_identifier,
+ .phy_reset = pqi_sas_phy_reset,
+ .phy_enable = pqi_sas_phy_enable,
+ .phy_setup = pqi_sas_phy_setup,
+ .phy_release = pqi_sas_phy_release,
+ .set_phy_speed = pqi_sas_phy_speed,
+ .smp_handler = pqi_sas_smp_handler,
+};
--- /dev/null
+/*
+ * driver for Microsemi PQI-based storage controllers
+ * Copyright (c) 2016 Microsemi Corporation
+ * Copyright (c) 2016 PMC-Sierra, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more details.
+ *
+ * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <scsi/scsi_device.h>
+#include <asm/unaligned.h>
+#include "smartpqi.h"
+#include "smartpqi_sis.h"
+
+/* legacy SIS interface commands */
+#define SIS_CMD_GET_ADAPTER_PROPERTIES 0x19
+#define SIS_CMD_INIT_BASE_STRUCT_ADDRESS 0x1b
+#define SIS_CMD_GET_PQI_CAPABILITIES 0x3000
+
+/* for submission of legacy SIS commands */
+#define SIS_REENABLE_SIS_MODE 0x1
+#define SIS_ENABLE_MSIX 0x40
+#define SIS_SOFT_RESET 0x100
+#define SIS_CMD_READY 0x200
+#define SIS_CMD_COMPLETE 0x1000
+#define SIS_CLEAR_CTRL_TO_HOST_DOORBELL 0x1000
+#define SIS_CMD_STATUS_SUCCESS 0x1
+#define SIS_CMD_COMPLETE_TIMEOUT_SECS 30
+#define SIS_CMD_COMPLETE_POLL_INTERVAL_MSECS 10
+
+/* used with SIS_CMD_GET_ADAPTER_PROPERTIES command */
+#define SIS_EXTENDED_PROPERTIES_SUPPORTED 0x800000
+#define SIS_SMARTARRAY_FEATURES_SUPPORTED 0x2
+#define SIS_PQI_MODE_SUPPORTED 0x4
+#define SIS_REQUIRED_EXTENDED_PROPERTIES \
+ (SIS_SMARTARRAY_FEATURES_SUPPORTED | SIS_PQI_MODE_SUPPORTED)
+
+/* used with SIS_CMD_INIT_BASE_STRUCT_ADDRESS command */
+#define SIS_BASE_STRUCT_REVISION 9
+#define SIS_BASE_STRUCT_ALIGNMENT 16
+
+#define SIS_CTRL_KERNEL_UP 0x80
+#define SIS_CTRL_KERNEL_PANIC 0x100
+#define SIS_CTRL_READY_TIMEOUT_SECS 30
+#define SIS_CTRL_READY_POLL_INTERVAL_MSECS 10
+
+#pragma pack(1)
+
+/* for use with SIS_CMD_INIT_BASE_STRUCT_ADDRESS command */
+struct sis_base_struct {
+ __le32 revision; /* revision of this structure */
+ __le32 flags; /* reserved */
+ __le32 error_buffer_paddr_low; /* lower 32 bits of physical memory */
+ /* buffer for PQI error response */
+ /* data */
+ __le32 error_buffer_paddr_high; /* upper 32 bits of physical */
+ /* memory buffer for PQI */
+ /* error response data */
+ __le32 error_buffer_element_length; /* length of each PQI error */
+ /* response buffer element */
+ /* in bytes */
+ __le32 error_buffer_num_elements; /* total number of PQI error */
+ /* response buffers available */
+};
+
+#pragma pack()
+
+int sis_wait_for_ctrl_ready(struct pqi_ctrl_info *ctrl_info)
+{
+ unsigned long timeout;
+ u32 status;
+
+ timeout = (SIS_CTRL_READY_TIMEOUT_SECS * HZ) + jiffies;
+
+ while (1) {
+ status = readl(&ctrl_info->registers->sis_firmware_status);
+ if (status != ~0) {
+ if (status & SIS_CTRL_KERNEL_PANIC) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "controller is offline: status code 0x%x\n",
+ readl(
+ &ctrl_info->registers->sis_mailbox[7]));
+ return -ENODEV;
+ }
+ if (status & SIS_CTRL_KERNEL_UP)
+ break;
+ }
+ if (time_after(jiffies, timeout))
+ return -ETIMEDOUT;
+ msleep(SIS_CTRL_READY_POLL_INTERVAL_MSECS);
+ }
+
+ return 0;
+}
+
+bool sis_is_firmware_running(struct pqi_ctrl_info *ctrl_info)
+{
+ bool running;
+ u32 status;
+
+ status = readl(&ctrl_info->registers->sis_firmware_status);
+
+ if (status & SIS_CTRL_KERNEL_PANIC)
+ running = false;
+ else
+ running = true;
+
+ if (!running)
+ dev_err(&ctrl_info->pci_dev->dev,
+ "controller is offline: status code 0x%x\n",
+ readl(&ctrl_info->registers->sis_mailbox[7]));
+
+ return running;
+}
+
+/* used for passing command parameters/results when issuing SIS commands */
+struct sis_sync_cmd_params {
+ u32 mailbox[6]; /* mailboxes 0-5 */
+};
+
+static int sis_send_sync_cmd(struct pqi_ctrl_info *ctrl_info,
+ u32 cmd, struct sis_sync_cmd_params *params)
+{
+ struct pqi_ctrl_registers __iomem *registers;
+ unsigned int i;
+ unsigned long timeout;
+ u32 doorbell;
+ u32 cmd_status;
+
+ registers = ctrl_info->registers;
+
+ /* Write the command to mailbox 0. */
+ writel(cmd, ®isters->sis_mailbox[0]);
+
+ /*
+ * Write the command parameters to mailboxes 1-4 (mailbox 5 is not used
+ * when sending a command to the controller).
+ */
+ for (i = 1; i <= 4; i++)
+ writel(params->mailbox[i], ®isters->sis_mailbox[i]);
+
+ /* Clear the command doorbell. */
+ writel(SIS_CLEAR_CTRL_TO_HOST_DOORBELL,
+ ®isters->sis_ctrl_to_host_doorbell_clear);
+
+ /* Disable doorbell interrupts by masking all interrupts. */
+ writel(~0, ®isters->sis_interrupt_mask);
+
+ /*
+ * Force the completion of the interrupt mask register write before
+ * submitting the command.
+ */
+ readl(®isters->sis_interrupt_mask);
+
+ /* Submit the command to the controller. */
+ writel(SIS_CMD_READY, ®isters->sis_host_to_ctrl_doorbell);
+
+ /*
+ * Poll for command completion. Note that the call to msleep() is at
+ * the top of the loop in order to give the controller time to start
+ * processing the command before we start polling.
+ */
+ timeout = (SIS_CMD_COMPLETE_TIMEOUT_SECS * HZ) + jiffies;
+ while (1) {
+ msleep(SIS_CMD_COMPLETE_POLL_INTERVAL_MSECS);
+ doorbell = readl(®isters->sis_ctrl_to_host_doorbell);
+ if (doorbell & SIS_CMD_COMPLETE)
+ break;
+ if (time_after(jiffies, timeout))
+ return -ETIMEDOUT;
+ }
+
+ /* Read the command status from mailbox 0. */
+ cmd_status = readl(®isters->sis_mailbox[0]);
+ if (cmd_status != SIS_CMD_STATUS_SUCCESS) {
+ dev_err(&ctrl_info->pci_dev->dev,
+ "SIS command failed for command 0x%x: status = 0x%x\n",
+ cmd, cmd_status);
+ return -EINVAL;
+ }
+
+ /*
+ * The command completed successfully, so save the command status and
+ * read the values returned in mailboxes 1-5.
+ */
+ params->mailbox[0] = cmd_status;
+ for (i = 1; i < ARRAY_SIZE(params->mailbox); i++)
+ params->mailbox[i] = readl(®isters->sis_mailbox[i]);
+
+ return 0;
+}
+
+/*
+ * This function verifies that we are talking to a controller that speaks PQI.
+ */
+
+int sis_get_ctrl_properties(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ u32 properties;
+ u32 extended_properties;
+ struct sis_sync_cmd_params params;
+
+ memset(¶ms, 0, sizeof(params));
+
+ rc = sis_send_sync_cmd(ctrl_info, SIS_CMD_GET_ADAPTER_PROPERTIES,
+ ¶ms);
+ if (rc)
+ return rc;
+
+ properties = params.mailbox[1];
+
+ if (!(properties & SIS_EXTENDED_PROPERTIES_SUPPORTED))
+ return -ENODEV;
+
+ extended_properties = params.mailbox[4];
+
+ if ((extended_properties & SIS_REQUIRED_EXTENDED_PROPERTIES) !=
+ SIS_REQUIRED_EXTENDED_PROPERTIES)
+ return -ENODEV;
+
+ return 0;
+}
+
+int sis_get_pqi_capabilities(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ struct sis_sync_cmd_params params;
+
+ memset(¶ms, 0, sizeof(params));
+
+ rc = sis_send_sync_cmd(ctrl_info, SIS_CMD_GET_PQI_CAPABILITIES,
+ ¶ms);
+ if (rc)
+ return rc;
+
+ ctrl_info->max_sg_entries = params.mailbox[1];
+ ctrl_info->max_transfer_size = params.mailbox[2];
+ ctrl_info->max_outstanding_requests = params.mailbox[3];
+ ctrl_info->config_table_offset = params.mailbox[4];
+ ctrl_info->config_table_length = params.mailbox[5];
+
+ return 0;
+}
+
+int sis_init_base_struct_addr(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ void *base_struct_unaligned;
+ struct sis_base_struct *base_struct;
+ struct sis_sync_cmd_params params;
+ unsigned long error_buffer_paddr;
+ dma_addr_t bus_address;
+
+ base_struct_unaligned = kzalloc(sizeof(*base_struct)
+ + SIS_BASE_STRUCT_ALIGNMENT - 1, GFP_KERNEL);
+ if (!base_struct_unaligned)
+ return -ENOMEM;
+
+ base_struct = PTR_ALIGN(base_struct_unaligned,
+ SIS_BASE_STRUCT_ALIGNMENT);
+ error_buffer_paddr = (unsigned long)ctrl_info->error_buffer_dma_handle;
+
+ put_unaligned_le32(SIS_BASE_STRUCT_REVISION, &base_struct->revision);
+ put_unaligned_le32(lower_32_bits(error_buffer_paddr),
+ &base_struct->error_buffer_paddr_low);
+ put_unaligned_le32(upper_32_bits(error_buffer_paddr),
+ &base_struct->error_buffer_paddr_high);
+ put_unaligned_le32(PQI_ERROR_BUFFER_ELEMENT_LENGTH,
+ &base_struct->error_buffer_element_length);
+ put_unaligned_le32(ctrl_info->max_io_slots,
+ &base_struct->error_buffer_num_elements);
+
+ bus_address = pci_map_single(ctrl_info->pci_dev, base_struct,
+ sizeof(*base_struct), PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(ctrl_info->pci_dev, bus_address)) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ memset(¶ms, 0, sizeof(params));
+ params.mailbox[1] = lower_32_bits((u64)bus_address);
+ params.mailbox[2] = upper_32_bits((u64)bus_address);
+ params.mailbox[3] = sizeof(*base_struct);
+
+ rc = sis_send_sync_cmd(ctrl_info, SIS_CMD_INIT_BASE_STRUCT_ADDRESS,
+ ¶ms);
+
+ pci_unmap_single(ctrl_info->pci_dev, bus_address, sizeof(*base_struct),
+ PCI_DMA_TODEVICE);
+
+out:
+ kfree(base_struct_unaligned);
+
+ return rc;
+}
+
+/* Enable MSI-X interrupts on the controller. */
+
+void sis_enable_msix(struct pqi_ctrl_info *ctrl_info)
+{
+ u32 doorbell_register;
+
+ doorbell_register =
+ readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
+ doorbell_register |= SIS_ENABLE_MSIX;
+
+ writel(doorbell_register,
+ &ctrl_info->registers->sis_host_to_ctrl_doorbell);
+}
+
+/* Disable MSI-X interrupts on the controller. */
+
+void sis_disable_msix(struct pqi_ctrl_info *ctrl_info)
+{
+ u32 doorbell_register;
+
+ doorbell_register =
+ readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
+ doorbell_register &= ~SIS_ENABLE_MSIX;
+
+ writel(doorbell_register,
+ &ctrl_info->registers->sis_host_to_ctrl_doorbell);
+}
+
+void sis_soft_reset(struct pqi_ctrl_info *ctrl_info)
+{
+ writel(SIS_SOFT_RESET,
+ &ctrl_info->registers->sis_host_to_ctrl_doorbell);
+}
+
+#define SIS_MODE_READY_TIMEOUT_SECS 30
+
+int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info)
+{
+ int rc;
+ unsigned long timeout;
+ struct pqi_ctrl_registers __iomem *registers;
+ u32 doorbell;
+
+ registers = ctrl_info->registers;
+
+ writel(SIS_REENABLE_SIS_MODE,
+ ®isters->sis_host_to_ctrl_doorbell);
+
+ rc = 0;
+ timeout = (SIS_MODE_READY_TIMEOUT_SECS * HZ) + jiffies;
+
+ while (1) {
+ doorbell = readl(®isters->sis_ctrl_to_host_doorbell);
+ if ((doorbell & SIS_REENABLE_SIS_MODE) == 0)
+ break;
+ if (time_after(jiffies, timeout)) {
+ rc = -ETIMEDOUT;
+ break;
+ }
+ }
+
+ if (rc)
+ dev_err(&ctrl_info->pci_dev->dev,
+ "re-enabling SIS mode failed\n");
+
+ return rc;
+}
+
+void sis_write_driver_scratch(struct pqi_ctrl_info *ctrl_info, u32 value)
+{
+ writel(value, &ctrl_info->registers->sis_driver_scratch);
+}
+
+u32 sis_read_driver_scratch(struct pqi_ctrl_info *ctrl_info)
+{
+ return readl(&ctrl_info->registers->sis_driver_scratch);
+}
+
+static void __attribute__((unused)) verify_structures(void)
+{
+ BUILD_BUG_ON(offsetof(struct sis_base_struct,
+ revision) != 0x0);
+ BUILD_BUG_ON(offsetof(struct sis_base_struct,
+ flags) != 0x4);
+ BUILD_BUG_ON(offsetof(struct sis_base_struct,
+ error_buffer_paddr_low) != 0x8);
+ BUILD_BUG_ON(offsetof(struct sis_base_struct,
+ error_buffer_paddr_high) != 0xc);
+ BUILD_BUG_ON(offsetof(struct sis_base_struct,
+ error_buffer_element_length) != 0x10);
+ BUILD_BUG_ON(offsetof(struct sis_base_struct,
+ error_buffer_num_elements) != 0x14);
+ BUILD_BUG_ON(sizeof(struct sis_base_struct) != 0x18);
+}
--- /dev/null
+/*
+ * driver for Microsemi PQI-based storage controllers
+ * Copyright (c) 2016 Microsemi Corporation
+ * Copyright (c) 2016 PMC-Sierra, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more details.
+ *
+ * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
+ *
+ */
+
+#if !defined(_SMARTPQI_SIS_H)
+#define _SMARTPQI_SIS_H
+
+int sis_wait_for_ctrl_ready(struct pqi_ctrl_info *ctrl_info);
+bool sis_is_firmware_running(struct pqi_ctrl_info *ctrl_info);
+int sis_get_ctrl_properties(struct pqi_ctrl_info *ctrl_info);
+int sis_get_pqi_capabilities(struct pqi_ctrl_info *ctrl_info);
+int sis_init_base_struct_addr(struct pqi_ctrl_info *ctrl_info);
+void sis_enable_msix(struct pqi_ctrl_info *ctrl_info);
+void sis_disable_msix(struct pqi_ctrl_info *ctrl_info);
+void sis_soft_reset(struct pqi_ctrl_info *ctrl_info);
+int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info);
+void sis_write_driver_scratch(struct pqi_ctrl_info *ctrl_info, u32 value);
+u32 sis_read_driver_scratch(struct pqi_ctrl_info *ctrl_info);
+
+#endif /* _SMARTPQI_SIS_H */
static int sr_done(struct scsi_cmnd *);
static int sr_runtime_suspend(struct device *dev);
-static struct dev_pm_ops sr_pm_ops = {
+static const struct dev_pm_ops sr_pm_ops = {
.runtime_suspend = sr_runtime_suspend,
};
spin_lock_irq(shost->host_lock);
if (sym_data->io_reset)
- complete_all(sym_data->io_reset);
+ complete(sym_data->io_reset);
spin_unlock_irq(shost->host_lock);
}
+++ /dev/null
-/*
- * Trantor T128/T128F/T228 driver
- * Note : architecturally, the T100 and T130 are different and won't
- * work
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- *
- * For more information, please consult
- *
- * Trantor Systems, Ltd.
- * T128/T128F/T228 SCSI Host Adapter
- * Hardware Specifications
- *
- * Trantor Systems, Ltd.
- * 5415 Randall Place
- * Fremont, CA 94538
- * 1+ (415) 770-1400, FAX 1+ (415) 770-9910
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - since the board is memory mapped,
- * a BIOS signature is scanned for to locate the registers.
- * An interrupt is triggered to autoprobe for the interrupt
- * line.
- *
- * 2. With command line overrides - t128=address,irq may be
- * used on the LILO command line to override the defaults.
- *
- * 3. With the T128_OVERRIDE compile time define. This is
- * specified as an array of address, irq tuples. Ie, for
- * one board at the default 0xcc000 address, IRQ5, I could say
- * -DT128_OVERRIDE={{0xcc000, 5}}
- *
- * Note that if the override methods are used, place holders must
- * be specified for other boards in the system.
- *
- * T128/T128F jumper/dipswitch settings (note : on my sample, the switches
- * were epoxy'd shut, meaning I couldn't change the 0xcc000 base address) :
- *
- * T128 Sw7 Sw8 Sw6 = 0ws Sw5 = boot
- * T128F Sw6 Sw7 Sw5 = 0ws Sw4 = boot Sw8 = floppy disable
- * cc000 off off
- * c8000 off on
- * dc000 on off
- * d8000 on on
- *
- *
- * Interrupts
- * There is a 12 pin jumper block, jp1, numbered as follows :
- * T128 (JP1) T128F (J5)
- * 2 4 6 8 10 12 11 9 7 5 3 1
- * 1 3 5 7 9 11 12 10 8 6 4 2
- *
- * 3 2-4
- * 5 1-3
- * 7 3-5
- * T128F only
- * 10 8-10
- * 12 7-9
- * 14 10-12
- * 15 9-11
- */
-
-#include <linux/io.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <scsi/scsi_host.h>
-#include "t128.h"
-#include "NCR5380.h"
-
-static struct override {
- unsigned long address;
- int irq;
-} overrides
-#ifdef T128_OVERRIDE
- [] __initdata = T128_OVERRIDE;
-#else
- [4] __initdata = {{0, IRQ_AUTO}, {0, IRQ_AUTO},
- {0 ,IRQ_AUTO}, {0, IRQ_AUTO}};
-#endif
-
-#define NO_OVERRIDES ARRAY_SIZE(overrides)
-
-static struct base {
- unsigned int address;
- int noauto;
-} bases[] __initdata = {
- { 0xcc000, 0}, { 0xc8000, 0}, { 0xdc000, 0}, { 0xd8000, 0}
-};
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static struct signature {
- const char *string;
- int offset;
-} signatures[] __initdata = {
-{"TSROM: SCSI BIOS, Version 1.12", 0x36},
-};
-
-#define NO_SIGNATURES ARRAY_SIZE(signatures)
-
-#ifndef MODULE
-/*
- * Function : t128_setup(char *str, int *ints)
- *
- * Purpose : LILO command line initialization of the overrides array,
- *
- * Inputs : str - unused, ints - array of integer parameters with ints[0]
- * equal to the number of ints.
- *
- */
-
-static int __init t128_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("t128_setup : usage t128=address,irq\n");
- else
- if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].address = ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].address == ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("t128=", t128_setup);
-#endif
-
-/*
- * Function : int t128_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes T128,T128F, or T228 controllers
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
- */
-
-static int __init t128_detect(struct scsi_host_template *tpnt)
-{
- static int current_override, current_base;
- struct Scsi_Host *instance;
- unsigned long base;
- void __iomem *p;
- int sig, count;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- base = 0;
- p = NULL;
-
- if (overrides[current_override].address) {
- base = overrides[current_override].address;
- p = ioremap(bases[current_base].address, 0x2000);
- if (!p)
- base = 0;
- } else
- for (; !base && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "t128: probing address 0x%08x\n",
- bases[current_base].address);
- if (bases[current_base].noauto)
- continue;
- p = ioremap(bases[current_base].address, 0x2000);
- if (!p)
- continue;
- for (sig = 0; sig < NO_SIGNATURES; ++sig)
- if (check_signature(p + signatures[sig].offset,
- signatures[sig].string,
- strlen(signatures[sig].string))) {
- base = bases[current_base].address;
- dprintk(NDEBUG_INIT, "t128: detected board\n");
- goto found;
- }
- iounmap(p);
- }
-
- dprintk(NDEBUG_INIT, "t128: base = 0x%08x\n", (unsigned int)base);
-
- if (!base)
- break;
-
-found:
- instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
- if(instance == NULL)
- goto out_unmap;
-
- instance->base = base;
- ((struct NCR5380_hostdata *)instance->hostdata)->base = p;
-
- if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, T128_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, t128_intr, 0, "t128",
- instance)) {
- printk("scsi%d : IRQ%d not free, interrupts disabled\n",
- instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- printk("scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
- printk("scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
- }
-
- dprintk(NDEBUG_INIT, "scsi%d: irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out_unmap:
- iounmap(p);
- return count;
-}
-
-static int t128_release(struct Scsi_Host *shost)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(shost);
-
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- iounmap(hostdata->base);
- return 0;
-}
-
-/*
- * Function : int t128_biosparam(Disk * disk, struct block_device *dev, int *ip)
- *
- * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
- * the specified device / size.
- *
- * Inputs : size = size of device in sectors (512 bytes), dev = block device
- * major / minor, ip[] = {heads, sectors, cylinders}
- *
- * Returns : always 0 (success), initializes ip
- *
- */
-
-/*
- * XXX Most SCSI boards use this mapping, I could be incorrect. Some one
- * using hard disks on a trantor should verify that this mapping corresponds
- * to that used by the BIOS / ASPI driver by running the linux fdisk program
- * and matching the H_C_S coordinates to what DOS uses.
- */
-
-static int t128_biosparam(struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int *ip)
-{
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = capacity >> 11;
- return 0;
-}
-
-/*
- * Function : int t128_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, transfers len bytes to
- * dst
- *
- * Inputs : dst = destination, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int t128_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- void __iomem *reg, *base = hostdata->base;
- unsigned char *d = dst;
- register int i = len;
-
- reg = base + T_DATA_REG_OFFSET;
-
-#if 0
- for (; i; --i) {
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
-#else
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
- for (; i; --i) {
-#endif
- *d++ = readb(reg);
- }
-
- if (readb(base + T_STATUS_REG_OFFSET) & T_ST_TIM) {
- unsigned char tmp;
- void __iomem *foo = base + T_CONTROL_REG_OFFSET;
- tmp = readb(foo);
- writeb(tmp | T_CR_CT, foo);
- writeb(tmp, foo);
- printk("scsi%d : watchdog timer fired in NCR5380_pread()\n",
- instance->host_no);
- return -1;
- } else
- return 0;
-}
-
-/*
- * Function : int t128_pwrite (struct Scsi_Host *instance,
- * unsigned char *src, int len)
- *
- * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
- * src
- *
- * Inputs : src = source, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int t128_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- void __iomem *reg, *base = hostdata->base;
- unsigned char *s = src;
- register int i = len;
-
- reg = base + T_DATA_REG_OFFSET;
-
-#if 0
- for (; i; --i) {
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
-#else
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
- for (; i; --i) {
-#endif
- writeb(*s++, reg);
- }
-
- if (readb(base + T_STATUS_REG_OFFSET) & T_ST_TIM) {
- unsigned char tmp;
- void __iomem *foo = base + T_CONTROL_REG_OFFSET;
- tmp = readb(foo);
- writeb(tmp | T_CR_CT, foo);
- writeb(tmp, foo);
- printk("scsi%d : watchdog timer fired in NCR5380_pwrite()\n",
- instance->host_no);
- return -1;
- } else
- return 0;
-}
-
-MODULE_LICENSE("GPL");
-
-#include "NCR5380.c"
-
-static struct scsi_host_template driver_template = {
- .name = "Trantor T128/T128F/T228",
- .detect = t128_detect,
- .release = t128_release,
- .proc_name = "t128",
- .info = t128_info,
- .queuecommand = t128_queue_command,
- .eh_abort_handler = t128_abort,
- .eh_bus_reset_handler = t128_bus_reset,
- .bios_param = t128_biosparam,
- .can_queue = 32,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 2,
- .use_clustering = DISABLE_CLUSTERING,
- .cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
-};
-#include "scsi_module.c"
+++ /dev/null
-/*
- * Trantor T128/T128F/T228 defines
- * Note : architecturally, the T100 and T128 are different and won't work
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- *
- * For more information, please consult
- *
- * Trantor Systems, Ltd.
- * T128/T128F/T228 SCSI Host Adapter
- * Hardware Specifications
- *
- * Trantor Systems, Ltd.
- * 5415 Randall Place
- * Fremont, CA 94538
- * 1+ (415) 770-1400, FAX 1+ (415) 770-9910
- */
-
-#ifndef T128_H
-#define T128_H
-
-/*
- * The trantor boards are memory mapped. They use an NCR5380 or
- * equivalent (my sample board had part second sourced from ZILOG).
- * NCR's recommended "Pseudo-DMA" architecture is used, where
- * a PAL drives the DMA signals on the 5380 allowing fast, blind
- * transfers with proper handshaking.
- */
-
-/*
- * Note : a boot switch is provided for the purpose of informing the
- * firmware to boot or not boot from attached SCSI devices. So, I imagine
- * there are fewer people who've yanked the ROM like they do on the Seagate
- * to make bootup faster, and I'll probably use this for autodetection.
- */
-#define T_ROM_OFFSET 0
-
-/*
- * Note : my sample board *WAS NOT* populated with the SRAM, so this
- * can't be used for autodetection without a ROM present.
- */
-#define T_RAM_OFFSET 0x1800
-
-/*
- * All of the registers are allocated 32 bytes of address space, except
- * for the data register (read/write to/from the 5380 in pseudo-DMA mode)
- */
-#define T_CONTROL_REG_OFFSET 0x1c00 /* rw */
-#define T_CR_INT 0x10 /* Enable interrupts */
-#define T_CR_CT 0x02 /* Reset watchdog timer */
-
-#define T_STATUS_REG_OFFSET 0x1c20 /* ro */
-#define T_ST_BOOT 0x80 /* Boot switch */
-#define T_ST_S3 0x40 /* User settable switches, */
-#define T_ST_S2 0x20 /* read 0 when switch is on, 1 off */
-#define T_ST_S1 0x10
-#define T_ST_PS2 0x08 /* Set for Microchannel 228 */
-#define T_ST_RDY 0x04 /* 5380 DRQ */
-#define T_ST_TIM 0x02 /* indicates 40us watchdog timer fired */
-#define T_ST_ZERO 0x01 /* Always zero */
-
-#define T_5380_OFFSET 0x1d00 /* 8 registers here, see NCR5380.h */
-
-#define T_DATA_REG_OFFSET 0x1e00 /* rw 512 bytes long */
-
-#define NCR5380_implementation_fields \
- void __iomem *base
-
-#define T128_address(reg) \
- (((struct NCR5380_hostdata *)shost_priv(instance))->base + T_5380_OFFSET + ((reg) * 0x20))
-
-#define NCR5380_read(reg) readb(T128_address(reg))
-#define NCR5380_write(reg, value) writeb((value),(T128_address(reg)))
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
-#define NCR5380_dma_recv_setup t128_pread
-#define NCR5380_dma_send_setup t128_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr t128_intr
-#define NCR5380_queue_command t128_queue_command
-#define NCR5380_abort t128_abort
-#define NCR5380_bus_reset t128_bus_reset
-#define NCR5380_info t128_info
-
-#define NCR5380_io_delay(x) udelay(x)
-
-/* 15 14 12 10 7 5 3
- 1101 0100 1010 1000 */
-
-#define T128_IRQS 0xc4a8
-
-#endif /* T128_H */
+++ /dev/null
-/*
- * u14-34f.c - Low-level driver for UltraStor 14F/34F SCSI host adapters.
- *
- * 03 Jun 2003 Rev. 8.10 for linux-2.5.70
- * + Update for new IRQ API.
- * + Use "goto" when appropriate.
- * + Drop u14-34f.h.
- * + Update for new module_param API.
- * + Module parameters can now be specified only in the
- * same format as the kernel boot options.
- *
- * boot option old module param
- * ----------- ------------------
- * addr,... io_port=addr,...
- * lc:[y|n] linked_comm=[1|0]
- * mq:xx max_queue_depth=xx
- * tm:[0|1|2] tag_mode=[0|1|2]
- * et:[y|n] ext_tran=[1|0]
- * of:[y|n] have_old_firmware=[1|0]
- *
- * A valid example using the new parameter format is:
- * modprobe u14-34f "u14-34f=0x340,0x330,lc:y,tm:0,mq:4"
- *
- * which is equivalent to the old format:
- * modprobe u14-34f io_port=0x340,0x330 linked_comm=1 tag_mode=0 \
- * max_queue_depth=4
- *
- * With actual module code, u14-34f and u14_34f are equivalent
- * as module parameter names.
- *
- * 12 Feb 2003 Rev. 8.04 for linux 2.5.60
- * + Release irq before calling scsi_register.
- *
- * 12 Nov 2002 Rev. 8.02 for linux 2.5.47
- * + Release driver_lock before calling scsi_register.
- *
- * 11 Nov 2002 Rev. 8.01 for linux 2.5.47
- * + Fixed bios_param and scsicam_bios_param calling parameters.
- *
- * 28 Oct 2002 Rev. 8.00 for linux 2.5.44-ac4
- * + Use new tcq and adjust_queue_depth api.
- * + New command line option (tm:[0-2]) to choose the type of tags:
- * 0 -> disable tagging ; 1 -> simple tags ; 2 -> ordered tags.
- * Default is tm:0 (tagged commands disabled).
- * For compatibility the "tc:" option is an alias of the "tm:"
- * option; tc:n is equivalent to tm:0 and tc:y is equivalent to
- * tm:1.
- *
- * 10 Oct 2002 Rev. 7.70 for linux 2.5.42
- * + Foreport from revision 6.70.
- *
- * 25 Jun 2002 Rev. 6.70 for linux 2.4.19
- * + Fixed endian-ness problem due to bitfields.
- *
- * 21 Feb 2002 Rev. 6.52 for linux 2.4.18
- * + Backport from rev. 7.22 (use io_request_lock).
- *
- * 20 Feb 2002 Rev. 7.22 for linux 2.5.5
- * + Remove any reference to virt_to_bus().
- * + Fix pio hang while detecting multiple HBAs.
- *
- * 01 Jan 2002 Rev. 7.20 for linux 2.5.1
- * + Use the dynamic DMA mapping API.
- *
- * 19 Dec 2001 Rev. 7.02 for linux 2.5.1
- * + Use SCpnt->sc_data_direction if set.
- * + Use sglist.page instead of sglist.address.
- *
- * 11 Dec 2001 Rev. 7.00 for linux 2.5.1
- * + Use host->host_lock instead of io_request_lock.
- *
- * 1 May 2001 Rev. 6.05 for linux 2.4.4
- * + Fix data transfer direction for opcode SEND_CUE_SHEET (0x5d)
- *
- * 25 Jan 2001 Rev. 6.03 for linux 2.4.0
- * + "check_region" call replaced by "request_region".
- *
- * 22 Nov 2000 Rev. 6.02 for linux 2.4.0-test11
- * + Removed old scsi error handling support.
- * + The obsolete boot option flag eh:n is silently ignored.
- * + Removed error messages while a disk drive is powered up at
- * boot time.
- * + Improved boot messages: all tagged capable device are
- * indicated as "tagged".
- *
- * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 and 2.3.18
- * + Updated to the new __setup interface for boot command line options.
- * + When loaded as a module, accepts the new parameter boot_options
- * which value is a string with the same format of the kernel boot
- * command line options. A valid example is:
- * modprobe u14-34f 'boot_options="0x230,0x340,lc:y,mq:4"'
- *
- * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 and 2.3.11
- * + Removed pre-2.2 source code compatibility.
- *
- * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111
- * Added command line option (et:[y|n]) to use the existing
- * translation (returned by scsicam_bios_param) as disk geometry.
- * The default is et:n, which uses the disk geometry jumpered
- * on the board.
- * The default value et:n is compatible with all previous revisions
- * of this driver.
- *
- * 28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104
- * Increased busy timeout from 10 msec. to 200 msec. while
- * processing interrupts.
- *
- * 18 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102
- * Improved abort handling during the eh recovery process.
- *
- * 13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101
- * The driver is now fully SMP safe, including the
- * abort and reset routines.
- * Added command line options (eh:[y|n]) to choose between
- * new_eh_code and the old scsi code.
- * If linux version >= 2.1.101 the default is eh:y, while the eh
- * option is ignored for previous releases and the old scsi code
- * is used.
- *
- * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97
- * Reworked interrupt handler.
- *
- * 11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95
- * Major reliability improvement: when a batch with overlapping
- * requests is detected, requests are queued one at a time
- * eliminating any possible board or drive reordering.
- *
- * 10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95
- * Improved SMP support (if linux version >= 2.1.95).
- *
- * 9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94
- * Performance improvement: when sequential i/o is detected,
- * always use direct sort instead of reverse sort.
- *
- * 4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92
- * io_port is now unsigned long.
- *
- * 17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88
- * Use new scsi error handling code (if linux version >= 2.1.88).
- * Use new interrupt code.
- *
- * 12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55
- * Use of udelay inside the wait loops to avoid timeout
- * problems with fast cpus.
- * Removed check about useless calls to the interrupt service
- * routine (reported on SMP systems only).
- * At initialization time "sorted/unsorted" is displayed instead
- * of "linked/unlinked" to reinforce the fact that "linking" is
- * nothing but "elevator sorting" in the actual implementation.
- *
- * 17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38
- * Use of serial_number_at_timeout in abort and reset processing.
- * Use of the __initfunc and __initdata macro in setup code.
- * Minor cleanups in the list_statistics code.
- *
- * 24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26
- * When loading as a module, parameter passing is now supported
- * both in 2.0 and in 2.1 style.
- * Fixed data transfer direction for some SCSI opcodes.
- * Immediate acknowledge to request sense commands.
- * Linked commands to each disk device are now reordered by elevator
- * sorting. Rare cases in which reordering of write requests could
- * cause wrong results are managed.
- *
- * 18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28
- * Added command line options to enable/disable linked commands
- * (lc:[y|n]), old firmware support (of:[y|n]) and to set the max
- * queue depth (mq:xx). Default is "u14-34f=lc:n,of:n,mq:8".
- * Improved command linking.
- *
- * 8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27
- * Added linked command support.
- *
- * 3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27
- * Added queue depth adjustment.
- *
- * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26
- * The list of i/o ports to be probed can be overwritten by the
- * "u14-34f=port0,port1,...." boot command line option.
- * Scatter/gather lists are now allocated by a number of kmalloc
- * calls, in order to avoid the previous size limit of 64Kb.
- *
- * 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25
- * Added multichannel support.
- *
- * 27 Sep 1996 rev. 2.12 for linux 2.1.0
- * Portability cleanups (virtual/bus addressing, little/big endian
- * support).
- *
- * 09 Jul 1996 rev. 2.11 for linux 2.0.4
- * "Data over/under-run" no longer implies a redo on all targets.
- * Number of internal retries is now limited.
- *
- * 16 Apr 1996 rev. 2.10 for linux 1.3.90
- * New argument "reset_flags" to the reset routine.
- *
- * 21 Jul 1995 rev. 2.02 for linux 1.3.11
- * Fixed Data Transfer Direction for some SCSI commands.
- *
- * 13 Jun 1995 rev. 2.01 for linux 1.2.10
- * HAVE_OLD_UX4F_FIRMWARE should be defined for U34F boards when
- * the firmware prom is not the latest one (28008-006).
- *
- * 11 Mar 1995 rev. 2.00 for linux 1.2.0
- * Fixed a bug which prevented media change detection for removable
- * disk drives.
- *
- * 23 Feb 1995 rev. 1.18 for linux 1.1.94
- * Added a check for scsi_register returning NULL.
- *
- * 11 Feb 1995 rev. 1.17 for linux 1.1.91
- * U14F qualified to run with 32 sglists.
- * Now DEBUG_RESET is disabled by default.
- *
- * 9 Feb 1995 rev. 1.16 for linux 1.1.90
- * Use host->wish_block instead of host->block.
- *
- * 8 Feb 1995 rev. 1.15 for linux 1.1.89
- * Cleared target_time_out counter while performing a reset.
- *
- * 28 Jan 1995 rev. 1.14 for linux 1.1.86
- * Added module support.
- * Log and do a retry when a disk drive returns a target status
- * different from zero on a recovered error.
- * Auto detects if U14F boards have an old firmware revision.
- * Max number of scatter/gather lists set to 16 for all boards
- * (most installation run fine using 33 sglists, while other
- * has problems when using more than 16).
- *
- * 16 Jan 1995 rev. 1.13 for linux 1.1.81
- * Display a message if check_region detects a port address
- * already in use.
- *
- * 15 Dec 1994 rev. 1.12 for linux 1.1.74
- * The host->block flag is set for all the detected ISA boards.
- *
- * 30 Nov 1994 rev. 1.11 for linux 1.1.68
- * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only.
- * Added optional support for using a single board at a time.
- *
- * 14 Nov 1994 rev. 1.10 for linux 1.1.63
- *
- * 28 Oct 1994 rev. 1.09 for linux 1.1.58 Final BETA release.
- * 16 Jul 1994 rev. 1.00 for linux 1.1.29 Initial ALPHA release.
- *
- * This driver is a total replacement of the original UltraStor
- * scsi driver, but it supports ONLY the 14F and 34F boards.
- * It can be configured in the same kernel in which the original
- * ultrastor driver is configured to allow the original U24F
- * support.
- *
- * Multiple U14F and/or U34F host adapters are supported.
- *
- * Copyright (C) 1994-2003 Dario Ballabio (ballabio_dario@emc.com)
- *
- * Alternate email: dario.ballabio@inwind.it, dario.ballabio@tiscalinet.it
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that redistributions of source
- * code retain the above copyright notice and this comment without
- * modification.
- *
- * WARNING: if your 14/34F board has an old firmware revision (see below)
- * you must change "#undef" into "#define" in the following
- * statement.
- */
-#undef HAVE_OLD_UX4F_FIRMWARE
-/*
- * The UltraStor 14F, 24F, and 34F are a family of intelligent, high
- * performance SCSI-2 host adapters.
- * Here is the scoop on the various models:
- *
- * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation.
- * 24F - EISA Bus Master HA with floppy support and WD1003 emulation.
- * 34F - VESA Local-Bus Bus Master HA (no WD1003 emulation).
- *
- * This code has been tested with up to two U14F boards, using both
- * firmware 28004-005/38004-004 (BIOS rev. 2.00) and the latest firmware
- * 28004-006/38004-005 (BIOS rev. 2.01).
- *
- * The latest firmware is required in order to get reliable operations when
- * clustering is enabled. ENABLE_CLUSTERING provides a performance increase
- * up to 50% on sequential access.
- *
- * Since the struct scsi_host_template structure is shared among all 14F and 34F,
- * the last setting of use_clustering is in effect for all of these boards.
- *
- * Here a sample configuration using two U14F boards:
- *
- U14F0: ISA 0x330, BIOS 0xc8000, IRQ 11, DMA 5, SG 32, MB 16, of:n, lc:y, mq:8.
- U14F1: ISA 0x340, BIOS 0x00000, IRQ 10, DMA 6, SG 32, MB 16, of:n, lc:y, mq:8.
- *
- * The boot controller must have its BIOS enabled, while other boards can
- * have their BIOS disabled, or enabled to an higher address.
- * Boards are named Ux4F0, Ux4F1..., according to the port address order in
- * the io_port[] array.
- *
- * The following facts are based on real testing results (not on
- * documentation) on the above U14F board.
- *
- * - The U14F board should be jumpered for bus on time less or equal to 7
- * microseconds, while the default is 11 microseconds. This is order to
- * get acceptable performance while using floppy drive and hard disk
- * together. The jumpering for 7 microseconds is: JP13 pin 15-16,
- * JP14 pin 7-8 and pin 9-10.
- * The reduction has a little impact on scsi performance.
- *
- * - If scsi bus length exceeds 3m., the scsi bus speed needs to be reduced
- * from 10Mhz to 5Mhz (do this by inserting a jumper on JP13 pin 7-8).
- *
- * - If U14F on board firmware is older than 28004-006/38004-005,
- * the U14F board is unable to provide reliable operations if the scsi
- * request length exceeds 16Kbyte. When this length is exceeded the
- * behavior is:
- * - adapter_status equal 0x96 or 0xa3 or 0x93 or 0x94;
- * - adapter_status equal 0 and target_status equal 2 on for all targets
- * in the next operation following the reset.
- * This sequence takes a long time (>3 seconds), so in the meantime
- * the SD_TIMEOUT in sd.c could expire giving rise to scsi aborts
- * (SD_TIMEOUT has been increased from 3 to 6 seconds in 1.1.31).
- * Because of this I had to DISABLE_CLUSTERING and to work around the
- * bus reset in the interrupt service routine, returning DID_BUS_BUSY
- * so that the operations are retried without complains from the scsi.c
- * code.
- * Any reset of the scsi bus is going to kill tape operations, since
- * no retry is allowed for tapes. Bus resets are more likely when the
- * scsi bus is under heavy load.
- * Requests using scatter/gather have a maximum length of 16 x 1024 bytes
- * when DISABLE_CLUSTERING is in effect, but unscattered requests could be
- * larger than 16Kbyte.
- *
- * The new firmware has fixed all the above problems.
- *
- * For U34F boards the latest bios prom is 38008-002 (BIOS rev. 2.01),
- * the latest firmware prom is 28008-006. Older firmware 28008-005 has
- * problems when using more than 16 scatter/gather lists.
- *
- * The list of i/o ports to be probed can be totally replaced by the
- * boot command line option: "u14-34f=port0,port1,port2,...", where the
- * port0, port1... arguments are ISA/VESA addresses to be probed.
- * For example using "u14-34f=0x230,0x340", the driver probes only the two
- * addresses 0x230 and 0x340 in this order; "u14-34f=0" totally disables
- * this driver.
- *
- * After the optional list of detection probes, other possible command line
- * options are:
- *
- * et:y use disk geometry returned by scsicam_bios_param;
- * et:n use disk geometry jumpered on the board;
- * lc:y enables linked commands;
- * lc:n disables linked commands;
- * tm:0 disables tagged commands (same as tc:n);
- * tm:1 use simple queue tags (same as tc:y);
- * tm:2 use ordered queue tags (same as tc:2);
- * of:y enables old firmware support;
- * of:n disables old firmware support;
- * mq:xx set the max queue depth to the value xx (2 <= xx <= 8).
- *
- * The default value is: "u14-34f=lc:n,of:n,mq:8,tm:0,et:n".
- * An example using the list of detection probes could be:
- * "u14-34f=0x230,0x340,lc:y,tm:2,of:n,mq:4,et:n".
- *
- * When loading as a module, parameters can be specified as well.
- * The above example would be (use 1 in place of y and 0 in place of n):
- *
- * modprobe u14-34f io_port=0x230,0x340 linked_comm=1 have_old_firmware=0 \
- * max_queue_depth=4 ext_tran=0 tag_mode=2
- *
- * ----------------------------------------------------------------------------
- * In this implementation, linked commands are designed to work with any DISK
- * or CD-ROM, since this linking has only the intent of clustering (time-wise)
- * and reordering by elevator sorting commands directed to each device,
- * without any relation with the actual SCSI protocol between the controller
- * and the device.
- * If Q is the queue depth reported at boot time for each device (also named
- * cmds/lun) and Q > 2, whenever there is already an active command to the
- * device all other commands to the same device (up to Q-1) are kept waiting
- * in the elevator sorting queue. When the active command completes, the
- * commands in this queue are sorted by sector address. The sort is chosen
- * between increasing or decreasing by minimizing the seek distance between
- * the sector of the commands just completed and the sector of the first
- * command in the list to be sorted.
- * Trivial math assures that the unsorted average seek distance when doing
- * random seeks over S sectors is S/3.
- * When (Q-1) requests are uniformly distributed over S sectors, the average
- * distance between two adjacent requests is S/((Q-1) + 1), so the sorted
- * average seek distance for (Q-1) random requests over S sectors is S/Q.
- * The elevator sorting hence divides the seek distance by a factor Q/3.
- * The above pure geometric remarks are valid in all cases and the
- * driver effectively reduces the seek distance by the predicted factor
- * when there are Q concurrent read i/o operations on the device, but this
- * does not necessarily results in a noticeable performance improvement:
- * your mileage may vary....
- *
- * Note: command reordering inside a batch of queued commands could cause
- * wrong results only if there is at least one write request and the
- * intersection (sector-wise) of all requests is not empty.
- * When the driver detects a batch including overlapping requests
- * (a really rare event) strict serial (pid) order is enforced.
- * ----------------------------------------------------------------------------
- *
- * The boards are named Ux4F0, Ux4F1,... according to the detection order.
- *
- * In order to support multiple ISA boards in a reliable way,
- * the driver sets host->wish_block = TRUE for all ISA boards.
- */
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/byteorder.h>
-#include <linux/proc_fs.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/stat.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ctype.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <asm/dma.h>
-#include <asm/irq.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_tcq.h>
-#include <scsi/scsicam.h>
-
-static int u14_34f_detect(struct scsi_host_template *);
-static int u14_34f_release(struct Scsi_Host *);
-static int u14_34f_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static int u14_34f_eh_abort(struct scsi_cmnd *);
-static int u14_34f_eh_host_reset(struct scsi_cmnd *);
-static int u14_34f_bios_param(struct scsi_device *, struct block_device *,
- sector_t, int *);
-static int u14_34f_slave_configure(struct scsi_device *);
-
-static struct scsi_host_template driver_template = {
- .name = "UltraStor 14F/34F rev. 8.10.00 ",
- .detect = u14_34f_detect,
- .release = u14_34f_release,
- .queuecommand = u14_34f_queuecommand,
- .eh_abort_handler = u14_34f_eh_abort,
- .eh_host_reset_handler = u14_34f_eh_host_reset,
- .bios_param = u14_34f_bios_param,
- .slave_configure = u14_34f_slave_configure,
- .this_id = 7,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
- };
-
-#if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
-
-/* Values for the PRODUCT_ID ports for the 14/34F */
-#define PRODUCT_ID1 0x56
-#define PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */
-
-/* Subversion values */
-#define ISA 0
-#define ESA 1
-
-#define OP_HOST_ADAPTER 0x1
-#define OP_SCSI 0x2
-#define OP_RESET 0x4
-#define DTD_SCSI 0x0
-#define DTD_IN 0x1
-#define DTD_OUT 0x2
-#define DTD_NONE 0x3
-#define HA_CMD_INQUIRY 0x1
-#define HA_CMD_SELF_DIAG 0x2
-#define HA_CMD_READ_BUFF 0x3
-#define HA_CMD_WRITE_BUFF 0x4
-
-#undef DEBUG_LINKED_COMMANDS
-#undef DEBUG_DETECT
-#undef DEBUG_INTERRUPT
-#undef DEBUG_RESET
-#undef DEBUG_GENERATE_ERRORS
-#undef DEBUG_GENERATE_ABORTS
-#undef DEBUG_GEOMETRY
-
-#define MAX_ISA 3
-#define MAX_VESA 1
-#define MAX_EISA 0
-#define MAX_PCI 0
-#define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI)
-#define MAX_CHANNEL 1
-#define MAX_LUN 8
-#define MAX_TARGET 8
-#define MAX_MAILBOXES 16
-#define MAX_SGLIST 32
-#define MAX_SAFE_SGLIST 16
-#define MAX_INTERNAL_RETRIES 64
-#define MAX_CMD_PER_LUN 2
-#define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN)
-
-#define SKIP ULONG_MAX
-#define FALSE 0
-#define TRUE 1
-#define FREE 0
-#define IN_USE 1
-#define LOCKED 2
-#define IN_RESET 3
-#define IGNORE 4
-#define READY 5
-#define ABORTING 6
-#define NO_DMA 0xff
-#define MAXLOOP 10000
-#define TAG_DISABLED 0
-#define TAG_SIMPLE 1
-#define TAG_ORDERED 2
-
-#define REG_LCL_MASK 0
-#define REG_LCL_INTR 1
-#define REG_SYS_MASK 2
-#define REG_SYS_INTR 3
-#define REG_PRODUCT_ID1 4
-#define REG_PRODUCT_ID2 5
-#define REG_CONFIG1 6
-#define REG_CONFIG2 7
-#define REG_OGM 8
-#define REG_ICM 12
-#define REGION_SIZE 13UL
-#define BSY_ASSERTED 0x01
-#define IRQ_ASSERTED 0x01
-#define CMD_RESET 0xc0
-#define CMD_OGM_INTR 0x01
-#define CMD_CLR_INTR 0x01
-#define CMD_ENA_INTR 0x81
-#define ASOK 0x00
-#define ASST 0x91
-
-#define YESNO(a) ((a) ? 'y' : 'n')
-#define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM)
-
-#define PACKED __attribute__((packed))
-
-struct sg_list {
- unsigned int address; /* Segment Address */
- unsigned int num_bytes; /* Segment Length */
- };
-
-/* MailBox SCSI Command Packet */
-struct mscp {
-
-#if defined(__BIG_ENDIAN_BITFIELD)
- unsigned char sg:1, ca:1, dcn:1, xdir:2, opcode:3;
- unsigned char lun: 3, channel:2, target:3;
-#else
- unsigned char opcode: 3, /* type of command */
- xdir: 2, /* data transfer direction */
- dcn: 1, /* disable disconnect */
- ca: 1, /* use cache (if available) */
- sg: 1; /* scatter/gather operation */
- unsigned char target: 3, /* SCSI target id */
- channel: 2, /* SCSI channel number */
- lun: 3; /* SCSI logical unit number */
-#endif
-
- unsigned int data_address PACKED; /* transfer data pointer */
- unsigned int data_len PACKED; /* length in bytes */
- unsigned int link_address PACKED; /* for linking command chains */
- unsigned char clink_id; /* identifies command in chain */
- unsigned char use_sg; /* (if sg is set) 8 bytes per list */
- unsigned char sense_len;
- unsigned char cdb_len; /* 6, 10, or 12 */
- unsigned char cdb[12]; /* SCSI Command Descriptor Block */
- unsigned char adapter_status; /* non-zero indicates HA error */
- unsigned char target_status; /* non-zero indicates target error */
- unsigned int sense_addr PACKED;
-
- /* Additional fields begin here. */
- struct scsi_cmnd *SCpnt;
- unsigned int cpp_index; /* cp index */
-
- /* All the cp structure is zero filled by queuecommand except the
- following CP_TAIL_SIZE bytes, initialized by detect */
- dma_addr_t cp_dma_addr; /* dma handle for this cp structure */
- struct sg_list *sglist; /* pointer to the allocated SG list */
- };
-
-#define CP_TAIL_SIZE (sizeof(struct sglist *) + sizeof(dma_addr_t))
-
-struct hostdata {
- struct mscp cp[MAX_MAILBOXES]; /* Mailboxes for this board */
- unsigned int cp_stat[MAX_MAILBOXES]; /* FREE, IN_USE, LOCKED, IN_RESET */
- unsigned int last_cp_used; /* Index of last mailbox used */
- unsigned int iocount; /* Total i/o done for this board */
- int board_number; /* Number of this board */
- char board_name[16]; /* Name of this board */
- int in_reset; /* True if board is doing a reset */
- int target_to[MAX_TARGET][MAX_CHANNEL]; /* N. of timeout errors on target */
- int target_redo[MAX_TARGET][MAX_CHANNEL]; /* If TRUE redo i/o on target */
- unsigned int retries; /* Number of internal retries */
- unsigned long last_retried_pid; /* Pid of last retried command */
- unsigned char subversion; /* Bus type, either ISA or ESA */
- struct pci_dev *pdev; /* Always NULL */
- unsigned char heads;
- unsigned char sectors;
- char board_id[256]; /* data from INQUIRY on this board */
- };
-
-static struct Scsi_Host *sh[MAX_BOARDS + 1];
-static const char *driver_name = "Ux4F";
-static char sha[MAX_BOARDS];
-static DEFINE_SPINLOCK(driver_lock);
-
-/* Initialize num_boards so that ihdlr can work while detect is in progress */
-static unsigned int num_boards = MAX_BOARDS;
-
-static unsigned long io_port[] = {
-
- /* Space for MAX_INT_PARAM ports usable while loading as a module */
- SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
- SKIP, SKIP,
-
- /* Possible ISA/VESA ports */
- 0x330, 0x340, 0x230, 0x240, 0x210, 0x130, 0x140,
-
- /* End of list */
- 0x0
- };
-
-#define HD(board) ((struct hostdata *) &sh[board]->hostdata)
-#define BN(board) (HD(board)->board_name)
-
-/* Device is Little Endian */
-#define H2DEV(x) cpu_to_le32(x)
-#define DEV2H(x) le32_to_cpu(x)
-
-static irqreturn_t do_interrupt_handler(int, void *);
-static void flush_dev(struct scsi_device *, unsigned long, unsigned int, unsigned int);
-static int do_trace = FALSE;
-static int setup_done = FALSE;
-static int link_statistics;
-static int ext_tran = FALSE;
-
-#if defined(HAVE_OLD_UX4F_FIRMWARE)
-static int have_old_firmware = TRUE;
-#else
-static int have_old_firmware = FALSE;
-#endif
-
-#if defined(CONFIG_SCSI_U14_34F_TAGGED_QUEUE)
-static int tag_mode = TAG_SIMPLE;
-#else
-static int tag_mode = TAG_DISABLED;
-#endif
-
-#if defined(CONFIG_SCSI_U14_34F_LINKED_COMMANDS)
-static int linked_comm = TRUE;
-#else
-static int linked_comm = FALSE;
-#endif
-
-#if defined(CONFIG_SCSI_U14_34F_MAX_TAGS)
-static int max_queue_depth = CONFIG_SCSI_U14_34F_MAX_TAGS;
-#else
-static int max_queue_depth = MAX_CMD_PER_LUN;
-#endif
-
-#define MAX_INT_PARAM 10
-#define MAX_BOOT_OPTIONS_SIZE 256
-static char boot_options[MAX_BOOT_OPTIONS_SIZE];
-
-#if defined(MODULE)
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-
-module_param_string(u14_34f, boot_options, MAX_BOOT_OPTIONS_SIZE, 0);
-MODULE_PARM_DESC(u14_34f, " equivalent to the \"u14-34f=...\" kernel boot " \
-"option." \
-" Example: modprobe u14-34f \"u14_34f=0x340,0x330,lc:y,tm:0,mq:4\"");
-MODULE_AUTHOR("Dario Ballabio");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("UltraStor 14F/34F SCSI Driver");
-
-#endif
-
-static int u14_34f_slave_configure(struct scsi_device *dev) {
- int j, tqd, utqd;
- char *tag_suffix, *link_suffix;
- struct Scsi_Host *host = dev->host;
-
- j = ((struct hostdata *) host->hostdata)->board_number;
-
- utqd = MAX_CMD_PER_LUN;
- tqd = max_queue_depth;
-
- if (TLDEV(dev->type) && dev->tagged_supported)
-
- if (tag_mode == TAG_SIMPLE) {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", simple tags";
- }
- else if (tag_mode == TAG_ORDERED) {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", ordered tags";
- }
- else {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", no tags";
- }
-
- else if (TLDEV(dev->type) && linked_comm) {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", untagged";
- }
-
- else {
- scsi_change_queue_depth(dev, utqd);
- tag_suffix = "";
- }
-
- if (TLDEV(dev->type) && linked_comm && dev->queue_depth > 2)
- link_suffix = ", sorted";
- else if (TLDEV(dev->type))
- link_suffix = ", unsorted";
- else
- link_suffix = "";
-
- sdev_printk(KERN_INFO, dev, "cmds/lun %d%s%s.\n",
- dev->queue_depth, link_suffix, tag_suffix);
-
- return FALSE;
-}
-
-static int wait_on_busy(unsigned long iobase, unsigned int loop) {
-
- while (inb(iobase + REG_LCL_INTR) & BSY_ASSERTED) {
- udelay(1L);
- if (--loop == 0) return TRUE;
- }
-
- return FALSE;
-}
-
-static int board_inquiry(unsigned int j) {
- struct mscp *cpp;
- dma_addr_t id_dma_addr;
- unsigned int limit = 0;
- unsigned long time;
-
- id_dma_addr = pci_map_single(HD(j)->pdev, HD(j)->board_id,
- sizeof(HD(j)->board_id), PCI_DMA_BIDIRECTIONAL);
- cpp = &HD(j)->cp[0];
- cpp->cp_dma_addr = pci_map_single(HD(j)->pdev, cpp, sizeof(struct mscp),
- PCI_DMA_BIDIRECTIONAL);
- memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE);
- cpp->opcode = OP_HOST_ADAPTER;
- cpp->xdir = DTD_IN;
- cpp->data_address = H2DEV(id_dma_addr);
- cpp->data_len = H2DEV(sizeof(HD(j)->board_id));
- cpp->cdb_len = 6;
- cpp->cdb[0] = HA_CMD_INQUIRY;
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: board_inquiry, adapter busy.\n", BN(j));
- return TRUE;
- }
-
- HD(j)->cp_stat[0] = IGNORE;
-
- /* Clear the interrupt indication */
- outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR);
-
- /* Store pointer in OGM address bytes */
- outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM);
-
- /* Issue OGM interrupt */
- outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR);
-
- spin_unlock_irq(&driver_lock);
- time = jiffies;
- while ((jiffies - time) < HZ && limit++ < 20000) udelay(100L);
- spin_lock_irq(&driver_lock);
-
- if (cpp->adapter_status || HD(j)->cp_stat[0] != FREE) {
- HD(j)->cp_stat[0] = FREE;
- printk("%s: board_inquiry, err 0x%x.\n", BN(j), cpp->adapter_status);
- return TRUE;
- }
-
- pci_unmap_single(HD(j)->pdev, cpp->cp_dma_addr, sizeof(struct mscp),
- PCI_DMA_BIDIRECTIONAL);
- pci_unmap_single(HD(j)->pdev, id_dma_addr, sizeof(HD(j)->board_id),
- PCI_DMA_BIDIRECTIONAL);
- return FALSE;
-}
-
-static int port_detect \
- (unsigned long port_base, unsigned int j, struct scsi_host_template *tpnt) {
- unsigned char irq, dma_channel, subversion, i;
- unsigned char in_byte;
- char *bus_type, dma_name[16];
-
- /* Allowed BIOS base addresses (NULL indicates reserved) */
- unsigned long bios_segment_table[8] = {
- 0,
- 0xc4000, 0xc8000, 0xcc000, 0xd0000,
- 0xd4000, 0xd8000, 0xdc000
- };
-
- /* Allowed IRQs */
- unsigned char interrupt_table[4] = { 15, 14, 11, 10 };
-
- /* Allowed DMA channels for ISA (0 indicates reserved) */
- unsigned char dma_channel_table[4] = { 5, 6, 7, 0 };
-
- /* Head/sector mappings */
- struct {
- unsigned char heads;
- unsigned char sectors;
- } mapping_table[4] = {
- { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 }
- };
-
- struct config_1 {
-
-#if defined(__BIG_ENDIAN_BITFIELD)
- unsigned char dma_channel: 2, interrupt:2,
- removable_disks_as_fixed:1, bios_segment: 3;
-#else
- unsigned char bios_segment: 3, removable_disks_as_fixed: 1,
- interrupt: 2, dma_channel: 2;
-#endif
-
- } config_1;
-
- struct config_2 {
-
-#if defined(__BIG_ENDIAN_BITFIELD)
- unsigned char tfr_port: 2, bios_drive_number: 1,
- mapping_mode: 2, ha_scsi_id: 3;
-#else
- unsigned char ha_scsi_id: 3, mapping_mode: 2,
- bios_drive_number: 1, tfr_port: 2;
-#endif
-
- } config_2;
-
- char name[16];
-
- sprintf(name, "%s%d", driver_name, j);
-
- if (!request_region(port_base, REGION_SIZE, driver_name)) {
-#if defined(DEBUG_DETECT)
- printk("%s: address 0x%03lx in use, skipping probe.\n", name, port_base);
-#endif
- goto fail;
- }
-
- spin_lock_irq(&driver_lock);
-
- if (inb(port_base + REG_PRODUCT_ID1) != PRODUCT_ID1) goto freelock;
-
- in_byte = inb(port_base + REG_PRODUCT_ID2);
-
- if ((in_byte & 0xf0) != PRODUCT_ID2) goto freelock;
-
- *(char *)&config_1 = inb(port_base + REG_CONFIG1);
- *(char *)&config_2 = inb(port_base + REG_CONFIG2);
-
- irq = interrupt_table[config_1.interrupt];
- dma_channel = dma_channel_table[config_1.dma_channel];
- subversion = (in_byte & 0x0f);
-
- /* Board detected, allocate its IRQ */
- if (request_irq(irq, do_interrupt_handler,
- (subversion == ESA) ? IRQF_SHARED : 0,
- driver_name, (void *) &sha[j])) {
- printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq);
- goto freelock;
- }
-
- if (subversion == ISA && request_dma(dma_channel, driver_name)) {
- printk("%s: unable to allocate DMA channel %u, detaching.\n",
- name, dma_channel);
- goto freeirq;
- }
-
- if (have_old_firmware) tpnt->use_clustering = DISABLE_CLUSTERING;
-
- spin_unlock_irq(&driver_lock);
- sh[j] = scsi_register(tpnt, sizeof(struct hostdata));
- spin_lock_irq(&driver_lock);
-
- if (sh[j] == NULL) {
- printk("%s: unable to register host, detaching.\n", name);
- goto freedma;
- }
-
- sh[j]->io_port = port_base;
- sh[j]->unique_id = port_base;
- sh[j]->n_io_port = REGION_SIZE;
- sh[j]->base = bios_segment_table[config_1.bios_segment];
- sh[j]->irq = irq;
- sh[j]->sg_tablesize = MAX_SGLIST;
- sh[j]->this_id = config_2.ha_scsi_id;
- sh[j]->can_queue = MAX_MAILBOXES;
- sh[j]->cmd_per_lun = MAX_CMD_PER_LUN;
-
-#if defined(DEBUG_DETECT)
- {
- unsigned char sys_mask, lcl_mask;
-
- sys_mask = inb(sh[j]->io_port + REG_SYS_MASK);
- lcl_mask = inb(sh[j]->io_port + REG_LCL_MASK);
- printk("SYS_MASK 0x%x, LCL_MASK 0x%x.\n", sys_mask, lcl_mask);
- }
-#endif
-
- /* Probably a bogus host scsi id, set it to the dummy value */
- if (sh[j]->this_id == 0) sh[j]->this_id = -1;
-
- /* If BIOS is disabled, force enable interrupts */
- if (sh[j]->base == 0) outb(CMD_ENA_INTR, sh[j]->io_port + REG_SYS_MASK);
-
- memset(HD(j), 0, sizeof(struct hostdata));
- HD(j)->heads = mapping_table[config_2.mapping_mode].heads;
- HD(j)->sectors = mapping_table[config_2.mapping_mode].sectors;
- HD(j)->subversion = subversion;
- HD(j)->pdev = NULL;
- HD(j)->board_number = j;
-
- if (have_old_firmware) sh[j]->sg_tablesize = MAX_SAFE_SGLIST;
-
- if (HD(j)->subversion == ESA) {
- sh[j]->unchecked_isa_dma = FALSE;
- sh[j]->dma_channel = NO_DMA;
- sprintf(BN(j), "U34F%d", j);
- bus_type = "VESA";
- }
- else {
- unsigned long flags;
- sh[j]->unchecked_isa_dma = TRUE;
-
- flags=claim_dma_lock();
- disable_dma(dma_channel);
- clear_dma_ff(dma_channel);
- set_dma_mode(dma_channel, DMA_MODE_CASCADE);
- enable_dma(dma_channel);
- release_dma_lock(flags);
-
- sh[j]->dma_channel = dma_channel;
- sprintf(BN(j), "U14F%d", j);
- bus_type = "ISA";
- }
-
- sh[j]->max_channel = MAX_CHANNEL - 1;
- sh[j]->max_id = MAX_TARGET;
- sh[j]->max_lun = MAX_LUN;
-
- if (HD(j)->subversion == ISA && !board_inquiry(j)) {
- HD(j)->board_id[40] = 0;
-
- if (strcmp(&HD(j)->board_id[32], "06000600")) {
- printk("%s: %s.\n", BN(j), &HD(j)->board_id[8]);
- printk("%s: firmware %s is outdated, FW PROM should be 28004-006.\n",
- BN(j), &HD(j)->board_id[32]);
- sh[j]->hostt->use_clustering = DISABLE_CLUSTERING;
- sh[j]->sg_tablesize = MAX_SAFE_SGLIST;
- }
- }
-
- if (dma_channel == NO_DMA) sprintf(dma_name, "%s", "BMST");
- else sprintf(dma_name, "DMA %u", dma_channel);
-
- spin_unlock_irq(&driver_lock);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- HD(j)->cp[i].cp_dma_addr = pci_map_single(HD(j)->pdev,
- &HD(j)->cp[i], sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- if (! ((&HD(j)->cp[i])->sglist = kmalloc(
- sh[j]->sg_tablesize * sizeof(struct sg_list),
- (sh[j]->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC))) {
- printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j), i);
- goto release;
- }
-
- if (max_queue_depth > MAX_TAGGED_CMD_PER_LUN)
- max_queue_depth = MAX_TAGGED_CMD_PER_LUN;
-
- if (max_queue_depth < MAX_CMD_PER_LUN) max_queue_depth = MAX_CMD_PER_LUN;
-
- if (tag_mode != TAG_DISABLED && tag_mode != TAG_SIMPLE)
- tag_mode = TAG_ORDERED;
-
- if (j == 0) {
- printk("UltraStor 14F/34F: Copyright (C) 1994-2003 Dario Ballabio.\n");
- printk("%s config options -> of:%c, tm:%d, lc:%c, mq:%d, et:%c.\n",
- driver_name, YESNO(have_old_firmware), tag_mode,
- YESNO(linked_comm), max_queue_depth, YESNO(ext_tran));
- }
-
- printk("%s: %s 0x%03lx, BIOS 0x%05x, IRQ %u, %s, SG %d, MB %d.\n",
- BN(j), bus_type, (unsigned long)sh[j]->io_port, (int)sh[j]->base,
- sh[j]->irq, dma_name, sh[j]->sg_tablesize, sh[j]->can_queue);
-
- if (sh[j]->max_id > 8 || sh[j]->max_lun > 8)
- printk("%s: wide SCSI support enabled, max_id %u, max_lun %llu.\n",
- BN(j), sh[j]->max_id, sh[j]->max_lun);
-
- for (i = 0; i <= sh[j]->max_channel; i++)
- printk("%s: SCSI channel %u enabled, host target ID %d.\n",
- BN(j), i, sh[j]->this_id);
-
- return TRUE;
-
-freedma:
- if (subversion == ISA) free_dma(dma_channel);
-freeirq:
- free_irq(irq, &sha[j]);
-freelock:
- spin_unlock_irq(&driver_lock);
- release_region(port_base, REGION_SIZE);
-fail:
- return FALSE;
-
-release:
- u14_34f_release(sh[j]);
- return FALSE;
-}
-
-static void internal_setup(char *str, int *ints) {
- int i, argc = ints[0];
- char *cur = str, *pc;
-
- if (argc > 0) {
-
- if (argc > MAX_INT_PARAM) argc = MAX_INT_PARAM;
-
- for (i = 0; i < argc; i++) io_port[i] = ints[i + 1];
-
- io_port[i] = 0;
- setup_done = TRUE;
- }
-
- while (cur && (pc = strchr(cur, ':'))) {
- int val = 0, c = *++pc;
-
- if (c == 'n' || c == 'N') val = FALSE;
- else if (c == 'y' || c == 'Y') val = TRUE;
- else val = (int) simple_strtoul(pc, NULL, 0);
-
- if (!strncmp(cur, "lc:", 3)) linked_comm = val;
- else if (!strncmp(cur, "of:", 3)) have_old_firmware = val;
- else if (!strncmp(cur, "tm:", 3)) tag_mode = val;
- else if (!strncmp(cur, "tc:", 3)) tag_mode = val;
- else if (!strncmp(cur, "mq:", 3)) max_queue_depth = val;
- else if (!strncmp(cur, "ls:", 3)) link_statistics = val;
- else if (!strncmp(cur, "et:", 3)) ext_tran = val;
-
- if ((cur = strchr(cur, ','))) ++cur;
- }
-
- return;
-}
-
-static int option_setup(char *str) {
- int ints[MAX_INT_PARAM];
- char *cur = str;
- int i = 1;
-
- while (cur && isdigit(*cur) && i < MAX_INT_PARAM) {
- ints[i++] = simple_strtoul(cur, NULL, 0);
-
- if ((cur = strchr(cur, ',')) != NULL) cur++;
- }
-
- ints[0] = i - 1;
- internal_setup(cur, ints);
- return 1;
-}
-
-static int u14_34f_detect(struct scsi_host_template *tpnt) {
- unsigned int j = 0, k;
-
- tpnt->proc_name = "u14-34f";
-
- if(strlen(boot_options)) option_setup(boot_options);
-
-#if defined(MODULE)
- /* io_port could have been modified when loading as a module */
- if(io_port[0] != SKIP) {
- setup_done = TRUE;
- io_port[MAX_INT_PARAM] = 0;
- }
-#endif
-
- for (k = 0; k < MAX_BOARDS + 1; k++) sh[k] = NULL;
-
- for (k = 0; io_port[k]; k++) {
-
- if (io_port[k] == SKIP) continue;
-
- if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt)) j++;
- }
-
- num_boards = j;
- return j;
-}
-
-static void map_dma(unsigned int i, unsigned int j) {
- unsigned int data_len = 0;
- unsigned int k, pci_dir;
- int count;
- struct scatterlist *sg;
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
- pci_dir = SCpnt->sc_data_direction;
-
- if (SCpnt->sense_buffer)
- cpp->sense_addr = H2DEV(pci_map_single(HD(j)->pdev, SCpnt->sense_buffer,
- SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE));
-
- cpp->sense_len = SCSI_SENSE_BUFFERSIZE;
-
- if (scsi_bufflen(SCpnt)) {
- count = scsi_dma_map(SCpnt);
- BUG_ON(count < 0);
-
- scsi_for_each_sg(SCpnt, sg, count, k) {
- cpp->sglist[k].address = H2DEV(sg_dma_address(sg));
- cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg));
- data_len += sg->length;
- }
-
- cpp->sg = TRUE;
- cpp->use_sg = scsi_sg_count(SCpnt);
- cpp->data_address =
- H2DEV(pci_map_single(HD(j)->pdev, cpp->sglist,
- cpp->use_sg * sizeof(struct sg_list),
- pci_dir));
- cpp->data_len = H2DEV(data_len);
-
- } else {
- pci_dir = PCI_DMA_BIDIRECTIONAL;
- cpp->data_len = H2DEV(scsi_bufflen(SCpnt));
- }
-}
-
-static void unmap_dma(unsigned int i, unsigned int j) {
- unsigned int pci_dir;
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
- pci_dir = SCpnt->sc_data_direction;
-
- if (DEV2H(cpp->sense_addr))
- pci_unmap_single(HD(j)->pdev, DEV2H(cpp->sense_addr),
- DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE);
-
- scsi_dma_unmap(SCpnt);
-
- if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL;
-
- if (DEV2H(cpp->data_address))
- pci_unmap_single(HD(j)->pdev, DEV2H(cpp->data_address),
- DEV2H(cpp->data_len), pci_dir);
-}
-
-static void sync_dma(unsigned int i, unsigned int j) {
- unsigned int pci_dir;
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
- pci_dir = SCpnt->sc_data_direction;
-
- if (DEV2H(cpp->sense_addr))
- pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->sense_addr),
- DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE);
-
- if (scsi_sg_count(SCpnt))
- pci_dma_sync_sg_for_cpu(HD(j)->pdev, scsi_sglist(SCpnt),
- scsi_sg_count(SCpnt), pci_dir);
-
- if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL;
-
- if (DEV2H(cpp->data_address))
- pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->data_address),
- DEV2H(cpp->data_len), pci_dir);
-}
-
-static void scsi_to_dev_dir(unsigned int i, unsigned int j) {
- unsigned int k;
-
- static const unsigned char data_out_cmds[] = {
- 0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e,
- 0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40,
- 0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b, 0x5d
- };
-
- static const unsigned char data_none_cmds[] = {
- 0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e,
- 0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47,
- 0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5, 0x00
- };
-
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
-
- if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
- cpp->xdir = DTD_IN;
- return;
- }
- else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
- cpp->xdir = DTD_OUT;
- return;
- }
- else if (SCpnt->sc_data_direction == DMA_NONE) {
- cpp->xdir = DTD_NONE;
- return;
- }
-
- if (SCpnt->sc_data_direction != DMA_BIDIRECTIONAL)
- panic("%s: qcomm, invalid SCpnt->sc_data_direction.\n", BN(j));
-
- cpp->xdir = DTD_IN;
-
- for (k = 0; k < ARRAY_SIZE(data_out_cmds); k++)
- if (SCpnt->cmnd[0] == data_out_cmds[k]) {
- cpp->xdir = DTD_OUT;
- break;
- }
-
- if (cpp->xdir == DTD_IN)
- for (k = 0; k < ARRAY_SIZE(data_none_cmds); k++)
- if (SCpnt->cmnd[0] == data_none_cmds[k]) {
- cpp->xdir = DTD_NONE;
- break;
- }
-
-}
-
-static int u14_34f_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) {
- unsigned int i, j, k;
- struct mscp *cpp;
-
- /* j is the board number */
- j = ((struct hostdata *) SCpnt->device->host->hostdata)->board_number;
-
- if (SCpnt->host_scribble)
- panic("%s: qcomm, SCpnt %p already active.\n",
- BN(j), SCpnt);
-
- /* i is the mailbox number, look for the first free mailbox
- starting from last_cp_used */
- i = HD(j)->last_cp_used + 1;
-
- for (k = 0; k < sh[j]->can_queue; k++, i++) {
-
- if (i >= sh[j]->can_queue) i = 0;
-
- if (HD(j)->cp_stat[i] == FREE) {
- HD(j)->last_cp_used = i;
- break;
- }
- }
-
- if (k == sh[j]->can_queue) {
- printk("%s: qcomm, no free mailbox.\n", BN(j));
- return 1;
- }
-
- /* Set pointer to control packet structure */
- cpp = &HD(j)->cp[i];
-
- memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE);
- SCpnt->scsi_done = done;
- cpp->cpp_index = i;
- SCpnt->host_scribble = (unsigned char *) &cpp->cpp_index;
-
- if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%u.\n",
- BN(j), i, SCpnt->device->channel, SCpnt->device->id,
- (u8)SCpnt->device->lun);
-
- cpp->opcode = OP_SCSI;
- cpp->channel = SCpnt->device->channel;
- cpp->target = SCpnt->device->id;
- cpp->lun = (u8)SCpnt->device->lun;
- cpp->SCpnt = SCpnt;
- cpp->cdb_len = SCpnt->cmd_len;
- memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len);
-
- /* Use data transfer direction SCpnt->sc_data_direction */
- scsi_to_dev_dir(i, j);
-
- /* Map DMA buffers and SG list */
- map_dma(i, j);
-
- if (linked_comm && SCpnt->device->queue_depth > 2
- && TLDEV(SCpnt->device->type)) {
- HD(j)->cp_stat[i] = READY;
- flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, FALSE);
- return 0;
- }
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- unmap_dma(i, j);
- SCpnt->host_scribble = NULL;
- scmd_printk(KERN_INFO, SCpnt,
- "qcomm, adapter busy.\n");
- return 1;
- }
-
- /* Store pointer in OGM address bytes */
- outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM);
-
- /* Issue OGM interrupt */
- outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR);
-
- HD(j)->cp_stat[i] = IN_USE;
- return 0;
-}
-
-static DEF_SCSI_QCMD(u14_34f_queuecommand)
-
-static int u14_34f_eh_abort(struct scsi_cmnd *SCarg) {
- unsigned int i, j;
-
- j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number;
-
- if (SCarg->host_scribble == NULL) {
- scmd_printk(KERN_INFO, SCarg, "abort, command inactive.\n");
- return SUCCESS;
- }
-
- i = *(unsigned int *)SCarg->host_scribble;
- scmd_printk(KERN_INFO, SCarg, "abort, mbox %d.\n", i);
-
- if (i >= sh[j]->can_queue)
- panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j));
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: abort, timeout error.\n", BN(j));
- return FAILED;
- }
-
- if (HD(j)->cp_stat[i] == FREE) {
- printk("%s: abort, mbox %d is free.\n", BN(j), i);
- return SUCCESS;
- }
-
- if (HD(j)->cp_stat[i] == IN_USE) {
- printk("%s: abort, mbox %d is in use.\n", BN(j), i);
-
- if (SCarg != HD(j)->cp[i].SCpnt)
- panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
- BN(j), i, SCarg, HD(j)->cp[i].SCpnt);
-
- if (inb(sh[j]->io_port + REG_SYS_INTR) & IRQ_ASSERTED)
- printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i);
-
- return FAILED;
- }
-
- if (HD(j)->cp_stat[i] == IN_RESET) {
- printk("%s: abort, mbox %d is in reset.\n", BN(j), i);
- return FAILED;
- }
-
- if (HD(j)->cp_stat[i] == LOCKED) {
- printk("%s: abort, mbox %d is locked.\n", BN(j), i);
- return SUCCESS;
- }
-
- if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
- unmap_dma(i, j);
- SCarg->result = DID_ABORT << 16;
- SCarg->host_scribble = NULL;
- HD(j)->cp_stat[i] = FREE;
- printk("%s, abort, mbox %d ready, DID_ABORT, done.\n", BN(j), i);
- SCarg->scsi_done(SCarg);
- return SUCCESS;
- }
-
- panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j), i);
-}
-
-static int u14_34f_eh_host_reset(struct scsi_cmnd *SCarg) {
- unsigned int i, j, k, c, limit = 0;
- unsigned long time;
- int arg_done = FALSE;
- struct scsi_cmnd *SCpnt;
-
- j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number;
- scmd_printk(KERN_INFO, SCarg, "reset, enter.\n");
-
- spin_lock_irq(sh[j]->host_lock);
-
- if (SCarg->host_scribble == NULL)
- printk("%s: reset, inactive.\n", BN(j));
-
- if (HD(j)->in_reset) {
- printk("%s: reset, exit, already in reset.\n", BN(j));
- spin_unlock_irq(sh[j]->host_lock);
- return FAILED;
- }
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: reset, exit, timeout error.\n", BN(j));
- spin_unlock_irq(sh[j]->host_lock);
- return FAILED;
- }
-
- HD(j)->retries = 0;
-
- for (c = 0; c <= sh[j]->max_channel; c++)
- for (k = 0; k < sh[j]->max_id; k++) {
- HD(j)->target_redo[k][c] = TRUE;
- HD(j)->target_to[k][c] = 0;
- }
-
- for (i = 0; i < sh[j]->can_queue; i++) {
-
- if (HD(j)->cp_stat[i] == FREE) continue;
-
- if (HD(j)->cp_stat[i] == LOCKED) {
- HD(j)->cp_stat[i] = FREE;
- printk("%s: reset, locked mbox %d forced free.\n", BN(j), i);
- continue;
- }
-
- if (!(SCpnt = HD(j)->cp[i].SCpnt))
- panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j), i);
-
- if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
- HD(j)->cp_stat[i] = ABORTING;
- printk("%s: reset, mbox %d aborting.\n", BN(j), i);
- }
-
- else {
- HD(j)->cp_stat[i] = IN_RESET;
- printk("%s: reset, mbox %d in reset.\n", BN(j), i);
- }
-
- if (SCpnt->host_scribble == NULL)
- panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j), i);
-
- if (*(unsigned int *)SCpnt->host_scribble != i)
- panic("%s: reset, mbox %d, index mismatch.\n", BN(j), i);
-
- if (SCpnt->scsi_done == NULL)
- panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j), i);
-
- if (SCpnt == SCarg) arg_done = TRUE;
- }
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: reset, cannot reset, timeout error.\n", BN(j));
- spin_unlock_irq(sh[j]->host_lock);
- return FAILED;
- }
-
- outb(CMD_RESET, sh[j]->io_port + REG_LCL_INTR);
- printk("%s: reset, board reset done, enabling interrupts.\n", BN(j));
-
-#if defined(DEBUG_RESET)
- do_trace = TRUE;
-#endif
-
- HD(j)->in_reset = TRUE;
-
- spin_unlock_irq(sh[j]->host_lock);
- time = jiffies;
- while ((jiffies - time) < (10 * HZ) && limit++ < 200000) udelay(100L);
- spin_lock_irq(sh[j]->host_lock);
-
- printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit);
-
- for (i = 0; i < sh[j]->can_queue; i++) {
-
- if (HD(j)->cp_stat[i] == IN_RESET) {
- SCpnt = HD(j)->cp[i].SCpnt;
- unmap_dma(i, j);
- SCpnt->result = DID_RESET << 16;
- SCpnt->host_scribble = NULL;
-
- /* This mailbox is still waiting for its interrupt */
- HD(j)->cp_stat[i] = LOCKED;
-
- printk("%s, reset, mbox %d locked, DID_RESET, done.\n", BN(j), i);
- }
-
- else if (HD(j)->cp_stat[i] == ABORTING) {
- SCpnt = HD(j)->cp[i].SCpnt;
- unmap_dma(i, j);
- SCpnt->result = DID_RESET << 16;
- SCpnt->host_scribble = NULL;
-
- /* This mailbox was never queued to the adapter */
- HD(j)->cp_stat[i] = FREE;
-
- printk("%s, reset, mbox %d aborting, DID_RESET, done.\n", BN(j), i);
- }
-
- else
-
- /* Any other mailbox has already been set free by interrupt */
- continue;
-
- SCpnt->scsi_done(SCpnt);
- }
-
- HD(j)->in_reset = FALSE;
- do_trace = FALSE;
-
- if (arg_done) printk("%s: reset, exit, done.\n", BN(j));
- else printk("%s: reset, exit.\n", BN(j));
-
- spin_unlock_irq(sh[j]->host_lock);
- return SUCCESS;
-}
-
-static int u14_34f_bios_param(struct scsi_device *disk,
- struct block_device *bdev, sector_t capacity, int *dkinfo) {
- unsigned int j = 0;
- unsigned int size = capacity;
-
- dkinfo[0] = HD(j)->heads;
- dkinfo[1] = HD(j)->sectors;
- dkinfo[2] = size / (HD(j)->heads * HD(j)->sectors);
-
- if (ext_tran && (scsicam_bios_param(bdev, capacity, dkinfo) < 0)) {
- dkinfo[0] = 255;
- dkinfo[1] = 63;
- dkinfo[2] = size / (dkinfo[0] * dkinfo[1]);
- }
-
-#if defined (DEBUG_GEOMETRY)
- printk ("%s: bios_param, head=%d, sec=%d, cyl=%d.\n", driver_name,
- dkinfo[0], dkinfo[1], dkinfo[2]);
-#endif
-
- return FALSE;
-}
-
-static void sort(unsigned long sk[], unsigned int da[], unsigned int n,
- unsigned int rev) {
- unsigned int i, j, k, y;
- unsigned long x;
-
- for (i = 0; i < n - 1; i++) {
- k = i;
-
- for (j = k + 1; j < n; j++)
- if (rev) {
- if (sk[j] > sk[k]) k = j;
- }
- else {
- if (sk[j] < sk[k]) k = j;
- }
-
- if (k != i) {
- x = sk[k]; sk[k] = sk[i]; sk[i] = x;
- y = da[k]; da[k] = da[i]; da[i] = y;
- }
- }
-
- return;
- }
-
-static int reorder(unsigned int j, unsigned long cursec,
- unsigned int ihdlr, unsigned int il[], unsigned int n_ready) {
- struct scsi_cmnd *SCpnt;
- struct mscp *cpp;
- unsigned int k, n;
- unsigned int rev = FALSE, s = TRUE, r = TRUE;
- unsigned int input_only = TRUE, overlap = FALSE;
- unsigned long sl[n_ready], pl[n_ready], ll[n_ready];
- unsigned long maxsec = 0, minsec = ULONG_MAX, seek = 0, iseek = 0;
- unsigned long ioseek = 0;
-
- static unsigned int flushcount = 0, batchcount = 0, sortcount = 0;
- static unsigned int readycount = 0, ovlcount = 0, inputcount = 0;
- static unsigned int readysorted = 0, revcount = 0;
- static unsigned long seeksorted = 0, seeknosort = 0;
-
- if (link_statistics && !(++flushcount % link_statistics))
- printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"\
- " av %ldK as %ldK.\n", flushcount, batchcount, inputcount,
- ovlcount, readycount, readysorted, sortcount, revcount,
- seeknosort / (readycount + 1),
- seeksorted / (readycount + 1));
-
- if (n_ready <= 1) return FALSE;
-
- for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-
- if (!(cpp->xdir == DTD_IN)) input_only = FALSE;
-
- if (blk_rq_pos(SCpnt->request) < minsec)
- minsec = blk_rq_pos(SCpnt->request);
- if (blk_rq_pos(SCpnt->request) > maxsec)
- maxsec = blk_rq_pos(SCpnt->request);
-
- sl[n] = blk_rq_pos(SCpnt->request);
- ioseek += blk_rq_sectors(SCpnt->request);
-
- if (!n) continue;
-
- if (sl[n] < sl[n - 1]) s = FALSE;
- if (sl[n] > sl[n - 1]) r = FALSE;
-
- if (link_statistics) {
- if (sl[n] > sl[n - 1])
- seek += sl[n] - sl[n - 1];
- else
- seek += sl[n - 1] - sl[n];
- }
-
- }
-
- if (link_statistics) {
- if (cursec > sl[0]) seek += cursec - sl[0]; else seek += sl[0] - cursec;
- }
-
- if (cursec > ((maxsec + minsec) / 2)) rev = TRUE;
-
- if (ioseek > ((maxsec - minsec) / 2)) rev = FALSE;
-
- if (!((rev && r) || (!rev && s))) sort(sl, il, n_ready, rev);
-
- if (!input_only) for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
- ll[n] = blk_rq_sectors(SCpnt->request); pl[n] = SCpnt->serial_number;
-
- if (!n) continue;
-
- if ((sl[n] == sl[n - 1]) || (!rev && ((sl[n - 1] + ll[n - 1]) > sl[n]))
- || (rev && ((sl[n] + ll[n]) > sl[n - 1]))) overlap = TRUE;
- }
-
- if (overlap) sort(pl, il, n_ready, FALSE);
-
- if (link_statistics) {
- if (cursec > sl[0]) iseek = cursec - sl[0]; else iseek = sl[0] - cursec;
- batchcount++; readycount += n_ready; seeknosort += seek / 1024;
- if (input_only) inputcount++;
- if (overlap) { ovlcount++; seeksorted += iseek / 1024; }
- else seeksorted += (iseek + maxsec - minsec) / 1024;
- if (rev && !r) { revcount++; readysorted += n_ready; }
- if (!rev && !s) { sortcount++; readysorted += n_ready; }
- }
-
-#if defined(DEBUG_LINKED_COMMANDS)
- if (link_statistics && (overlap || !(flushcount % link_statistics)))
- for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
- printk("%s %d.%d:%llu mb %d fc %d nr %d sec %ld ns %u"\
- " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n",
- (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target,
- (u8)SCpnt->lun, k, flushcount, n_ready,
- blk_rq_pos(SCpnt->request), blk_rq_sectors(SCpnt->request),
- cursec, YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only),
- YESNO(overlap), cpp->xdir);
- }
-#endif
- return overlap;
-}
-
-static void flush_dev(struct scsi_device *dev, unsigned long cursec, unsigned int j,
- unsigned int ihdlr) {
- struct scsi_cmnd *SCpnt;
- struct mscp *cpp;
- unsigned int k, n, n_ready = 0, il[MAX_MAILBOXES];
-
- for (k = 0; k < sh[j]->can_queue; k++) {
-
- if (HD(j)->cp_stat[k] != READY && HD(j)->cp_stat[k] != IN_USE) continue;
-
- cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-
- if (SCpnt->device != dev) continue;
-
- if (HD(j)->cp_stat[k] == IN_USE) return;
-
- il[n_ready++] = k;
- }
-
- if (reorder(j, cursec, ihdlr, il, n_ready)) n_ready = 1;
-
- for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- scmd_printk(KERN_INFO, SCpnt,
- "%s, mbox %d, adapter"
- " busy, will abort.\n", (ihdlr ? "ihdlr" : "qcomm"),
- k);
- HD(j)->cp_stat[k] = ABORTING;
- continue;
- }
-
- outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM);
- outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR);
- HD(j)->cp_stat[k] = IN_USE;
- }
-
-}
-
-static irqreturn_t ihdlr(unsigned int j)
-{
- struct scsi_cmnd *SCpnt;
- unsigned int i, k, c, status, tstatus, reg, ret;
- struct mscp *spp, *cpp;
- int irq = sh[j]->irq;
-
- /* Check if this board need to be serviced */
- if (!((reg = inb(sh[j]->io_port + REG_SYS_INTR)) & IRQ_ASSERTED)) goto none;
-
- HD(j)->iocount++;
-
- if (do_trace) printk("%s: ihdlr, enter, irq %d, count %d.\n", BN(j), irq,
- HD(j)->iocount);
-
- /* Check if this board is still busy */
- if (wait_on_busy(sh[j]->io_port, 20 * MAXLOOP)) {
- outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR);
- printk("%s: ihdlr, busy timeout error, irq %d, reg 0x%x, count %d.\n",
- BN(j), irq, reg, HD(j)->iocount);
- goto none;
- }
-
- ret = inl(sh[j]->io_port + REG_ICM);
-
- /* Clear interrupt pending flag */
- outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR);
-
- /* Find the mailbox to be serviced on this board */
- for (i = 0; i < sh[j]->can_queue; i++)
- if (H2DEV(HD(j)->cp[i].cp_dma_addr) == ret) break;
-
- if (i >= sh[j]->can_queue)
- panic("%s: ihdlr, invalid mscp bus address %p, cp0 %p.\n", BN(j),
- (void *)ret, (void *)H2DEV(HD(j)->cp[0].cp_dma_addr));
-
- cpp = &(HD(j)->cp[i]);
- spp = cpp;
-
-#if defined(DEBUG_GENERATE_ABORTS)
- if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 500) < 3)) goto handled;
-#endif
-
- if (HD(j)->cp_stat[i] == IGNORE) {
- HD(j)->cp_stat[i] = FREE;
- goto handled;
- }
- else if (HD(j)->cp_stat[i] == LOCKED) {
- HD(j)->cp_stat[i] = FREE;
- printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j), i,
- HD(j)->iocount);
- goto handled;
- }
- else if (HD(j)->cp_stat[i] == FREE) {
- printk("%s: ihdlr, mbox %d is free, count %d.\n", BN(j), i,
- HD(j)->iocount);
- goto handled;
- }
- else if (HD(j)->cp_stat[i] == IN_RESET)
- printk("%s: ihdlr, mbox %d is in reset.\n", BN(j), i);
- else if (HD(j)->cp_stat[i] != IN_USE)
- panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n",
- BN(j), i, HD(j)->cp_stat[i]);
-
- HD(j)->cp_stat[i] = FREE;
- SCpnt = cpp->SCpnt;
-
- if (SCpnt == NULL) panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", BN(j), i);
-
- if (SCpnt->host_scribble == NULL)
- panic("%s: ihdlr, mbox %d, SCpnt %p garbled.\n", BN(j), i,
- SCpnt);
-
- if (*(unsigned int *)SCpnt->host_scribble != i)
- panic("%s: ihdlr, mbox %d, index mismatch %d.\n",
- BN(j), i, *(unsigned int *)SCpnt->host_scribble);
-
- sync_dma(i, j);
-
- if (linked_comm && SCpnt->device->queue_depth > 2
- && TLDEV(SCpnt->device->type))
- flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, TRUE);
-
- tstatus = status_byte(spp->target_status);
-
-#if defined(DEBUG_GENERATE_ERRORS)
- if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 200) < 2))
- spp->adapter_status = 0x01;
-#endif
-
- switch (spp->adapter_status) {
- case ASOK: /* status OK */
-
- /* Forces a reset if a disk drive keeps returning BUSY */
- if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE)
- status = DID_ERROR << 16;
-
- /* If there was a bus reset, redo operation on each target */
- else if (tstatus != GOOD && SCpnt->device->type == TYPE_DISK
- && HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)])
- status = DID_BUS_BUSY << 16;
-
- /* Works around a flaw in scsi.c */
- else if (tstatus == CHECK_CONDITION
- && SCpnt->device->type == TYPE_DISK
- && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR)
- status = DID_BUS_BUSY << 16;
-
- else
- status = DID_OK << 16;
-
- if (tstatus == GOOD)
- HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)] = FALSE;
-
- if (spp->target_status && SCpnt->device->type == TYPE_DISK &&
- (!(tstatus == CHECK_CONDITION && HD(j)->iocount <= 1000 &&
- (SCpnt->sense_buffer[2] & 0xf) == NOT_READY)))
- scmd_printk(KERN_INFO, SCpnt,
- "ihdlr, target_status 0x%x, sense key 0x%x.\n",
- spp->target_status,
- SCpnt->sense_buffer[2]);
-
- HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] = 0;
-
- if (HD(j)->last_retried_pid == SCpnt->serial_number) HD(j)->retries = 0;
-
- break;
- case ASST: /* Selection Time Out */
-
- if (HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] > 1)
- status = DID_ERROR << 16;
- else {
- status = DID_TIME_OUT << 16;
- HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)]++;
- }
-
- break;
-
- /* Perform a limited number of internal retries */
- case 0x93: /* Unexpected bus free */
- case 0x94: /* Target bus phase sequence failure */
- case 0x96: /* Illegal SCSI command */
- case 0xa3: /* SCSI bus reset error */
-
- for (c = 0; c <= sh[j]->max_channel; c++)
- for (k = 0; k < sh[j]->max_id; k++)
- HD(j)->target_redo[k][c] = TRUE;
-
-
- case 0x92: /* Data over/under-run */
-
- if (SCpnt->device->type != TYPE_TAPE
- && HD(j)->retries < MAX_INTERNAL_RETRIES) {
-
-#if defined(DID_SOFT_ERROR)
- status = DID_SOFT_ERROR << 16;
-#else
- status = DID_BUS_BUSY << 16;
-#endif
-
- HD(j)->retries++;
- HD(j)->last_retried_pid = SCpnt->serial_number;
- }
- else
- status = DID_ERROR << 16;
-
- break;
- case 0x01: /* Invalid command */
- case 0x02: /* Invalid parameters */
- case 0x03: /* Invalid data list */
- case 0x84: /* SCSI bus abort error */
- case 0x9b: /* Auto request sense error */
- case 0x9f: /* Unexpected command complete message error */
- case 0xff: /* Invalid parameter in the S/G list */
- default:
- status = DID_ERROR << 16;
- break;
- }
-
- SCpnt->result = status | spp->target_status;
-
-#if defined(DEBUG_INTERRUPT)
- if (SCpnt->result || do_trace)
-#else
- if ((spp->adapter_status != ASOK && HD(j)->iocount > 1000) ||
- (spp->adapter_status != ASOK &&
- spp->adapter_status != ASST && HD(j)->iocount <= 1000) ||
- do_trace || msg_byte(spp->target_status))
-#endif
- scmd_printk(KERN_INFO, SCpnt, "ihdlr, mbox %2d, err 0x%x:%x,"\
- " reg 0x%x, count %d.\n",
- i, spp->adapter_status, spp->target_status,
- reg, HD(j)->iocount);
-
- unmap_dma(i, j);
-
- /* Set the command state to inactive */
- SCpnt->host_scribble = NULL;
-
- SCpnt->scsi_done(SCpnt);
-
- if (do_trace) printk("%s: ihdlr, exit, irq %d, count %d.\n", BN(j), irq,
- HD(j)->iocount);
-
-handled:
- return IRQ_HANDLED;
-none:
- return IRQ_NONE;
-}
-
-static irqreturn_t do_interrupt_handler(int irq, void *shap) {
- unsigned int j;
- unsigned long spin_flags;
- irqreturn_t ret;
-
- /* Check if the interrupt must be processed by this handler */
- if ((j = (unsigned int)((char *)shap - sha)) >= num_boards) return IRQ_NONE;
-
- spin_lock_irqsave(sh[j]->host_lock, spin_flags);
- ret = ihdlr(j);
- spin_unlock_irqrestore(sh[j]->host_lock, spin_flags);
- return ret;
-}
-
-static int u14_34f_release(struct Scsi_Host *shpnt) {
- unsigned int i, j;
-
- for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++);
-
- if (sh[j] == NULL)
- panic("%s: release, invalid Scsi_Host pointer.\n", driver_name);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- kfree((&HD(j)->cp[i])->sglist);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- pci_unmap_single(HD(j)->pdev, HD(j)->cp[i].cp_dma_addr,
- sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL);
-
- free_irq(sh[j]->irq, &sha[j]);
-
- if (sh[j]->dma_channel != NO_DMA)
- free_dma(sh[j]->dma_channel);
-
- release_region(sh[j]->io_port, sh[j]->n_io_port);
- scsi_unregister(sh[j]);
- return FALSE;
-}
-
-#include "scsi_module.c"
-
-#ifndef MODULE
-__setup("u14-34f=", option_setup);
-#endif /* end MODULE */
#include "ufshcd-dwc.h"
#include "ufshci-dwc.h"
+#include "tc-dwc-g210.h"
/**
* tc_dwc_g210_setup_40bit_rmmi()
MASK_QUERY_DATA_SEG_LEN = 0xFFFF,
MASK_RSP_UPIU_DATA_SEG_LEN = 0xFFFF,
MASK_RSP_EXCEPTION_EVENT = 0x10000,
+ MASK_TM_SERVICE_RESP = 0xFF,
};
/* Task management service response */
status = ufshcd_get_upmcrs(hba);
if (status != PWR_LOCAL) {
dev_err(hba->dev,
- "pwr ctrl cmd 0x%0x failed, host umpcrs:0x%x\n",
+ "pwr ctrl cmd 0x%0x failed, host upmcrs:0x%x\n",
cmd->command, status);
ret = (status != PWR_OK) ? status : -1;
}
if (ocs_value == OCS_SUCCESS) {
task_rsp_upiup = (struct utp_upiu_task_rsp *)
task_req_descp[index].task_rsp_upiu;
- task_result = be32_to_cpu(task_rsp_upiup->header.dword_1);
- task_result = ((task_result & MASK_TASK_RESPONSE) >> 8);
+ task_result = be32_to_cpu(task_rsp_upiup->output_param1);
+ task_result = task_result & MASK_TM_SERVICE_RESP;
if (resp)
*resp = (u8)task_result;
} else {
+++ /dev/null
-/*
- * ultrastor.c Copyright (C) 1992 David B. Gentzel
- * Low-level SCSI driver for UltraStor 14F, 24F, and 34F
- * by David B. Gentzel, Whitfield Software Services, Carnegie, PA
- * (gentzel@nova.enet.dec.com)
- * scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)
- * 24F and multiple command support by John F. Carr (jfc@athena.mit.edu)
- * John's work modified by Caleb Epstein (cae@jpmorgan.com) and
- * Eric Youngdale (ericy@cais.com).
- * Thanks to UltraStor for providing the necessary documentation
- *
- * This is an old driver, for the 14F and 34F you should be using the
- * u14-34f driver instead.
- */
-
-/*
- * TODO:
- * 1. Find out why scatter/gather is limited to 16 requests per command.
- * This is fixed, at least on the 24F, as of version 1.12 - CAE.
- * 2. Look at command linking (mscp.command_link and
- * mscp.command_link_id). (Does not work with many disks,
- * and no performance increase. ERY).
- * 3. Allow multiple adapters.
- */
-
-/*
- * NOTES:
- * The UltraStor 14F, 24F, and 34F are a family of intelligent, high
- * performance SCSI-2 host adapters. They all support command queueing
- * and scatter/gather I/O. Some of them can also emulate the standard
- * WD1003 interface for use with OS's which don't support SCSI. Here
- * is the scoop on the various models:
- * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation.
- * 14N - ISA HA with floppy support. I think that this is a non-DMA
- * HA. Nothing further known.
- * 24F - EISA Bus Master HA with floppy support and WD1003 emulation.
- * 34F - VL-Bus Bus Master HA with floppy support (no WD1003 emulation).
- *
- * The 14F, 24F, and 34F are supported by this driver.
- *
- * Places flagged with a triple question-mark are things which are either
- * unfinished, questionable, or wrong.
- */
-
-/* Changes from version 1.11 alpha to 1.12
- *
- * Increased the size of the scatter-gather list to 33 entries for
- * the 24F adapter (it was 16). I don't have the specs for the 14F
- * or the 34F, so they may support larger s-g lists as well.
- *
- * Caleb Epstein <cae@jpmorgan.com>
- */
-
-/* Changes from version 1.9 to 1.11
- *
- * Patches to bring this driver up to speed with the default kernel
- * driver which supports only the 14F and 34F adapters. This version
- * should compile cleanly into 0.99.13, 0.99.12 and probably 0.99.11.
- *
- * Fixes from Eric Youngdale to fix a few possible race conditions and
- * several problems with bit testing operations (insufficient
- * parentheses).
- *
- * Removed the ultrastor_abort() and ultrastor_reset() functions
- * (enclosed them in #if 0 / #endif). These functions, at least on
- * the 24F, cause the SCSI bus to do odd things and generally lead to
- * kernel panics and machine hangs. This is like the Adaptec code.
- *
- * Use check/snarf_region for 14f, 34f to avoid I/O space address conflicts.
- */
-
-/* Changes from version 1.8 to version 1.9
- *
- * 0.99.11 patches (cae@jpmorgan.com) */
-
-/* Changes from version 1.7 to version 1.8
- *
- * Better error reporting.
- */
-
-/* Changes from version 1.6 to version 1.7
- *
- * Removed CSIR command code.
- *
- * Better race condition avoidance (xchgb function added).
- *
- * Set ICM and OGM status to zero at probe (24F)
- *
- * reset sends soft reset to UltraStor adapter
- *
- * reset adapter if adapter interrupts with an invalid MSCP address
- *
- * handle aborted command interrupt (24F)
- *
- */
-
-/* Changes from version 1.5 to version 1.6:
- *
- * Read MSCP address from ICM _before_ clearing the interrupt flag.
- * This fixes a race condition.
- */
-
-/* Changes from version 1.4 to version 1.5:
- *
- * Abort now calls done when multiple commands are enabled.
- *
- * Clear busy when aborted command finishes, not when abort is called.
- *
- * More debugging messages for aborts.
- */
-
-/* Changes from version 1.3 to version 1.4:
- *
- * Enable automatic request of sense data on error (requires newer version
- * of scsi.c to be useful).
- *
- * Fix PORT_OVERRIDE for 14F.
- *
- * Fix abort and reset to work properly (config.aborted wasn't cleared
- * after it was tested, so after a command abort no further commands would
- * work).
- *
- * Boot time test to enable SCSI bus reset (defaults to not allowing reset).
- *
- * Fix test for OGM busy -- the busy bit is in different places on the 24F.
- *
- * Release ICM slot by clearing first byte on 24F.
- */
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/stddef.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/stat.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#define ULTRASTOR_PRIVATE /* Get the private stuff from ultrastor.h */
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include "ultrastor.h"
-
-#define FALSE 0
-#define TRUE 1
-
-#ifndef ULTRASTOR_DEBUG
-#define ULTRASTOR_DEBUG (UD_ABORT|UD_CSIR|UD_RESET)
-#endif
-
-#define VERSION "1.12"
-
-#define PACKED __attribute__((packed))
-#define ALIGNED(x) __attribute__((aligned(x)))
-
-
-/* The 14F uses an array of 4-byte ints for its scatter/gather list.
- The data can be unaligned, but need not be. It's easier to give
- the list normal alignment since it doesn't need to fit into a
- packed structure. */
-
-typedef struct {
- u32 address;
- u32 num_bytes;
-} ultrastor_sg_list;
-
-
-/* MailBox SCSI Command Packet. Basic command structure for communicating
- with controller. */
-struct mscp {
- unsigned char opcode: 3; /* type of command */
- unsigned char xdir: 2; /* data transfer direction */
- unsigned char dcn: 1; /* disable disconnect */
- unsigned char ca: 1; /* use cache (if available) */
- unsigned char sg: 1; /* scatter/gather operation */
- unsigned char target_id: 3; /* target SCSI id */
- unsigned char ch_no: 2; /* SCSI channel (always 0 for 14f) */
- unsigned char lun: 3; /* logical unit number */
- unsigned int transfer_data PACKED; /* transfer data pointer */
- unsigned int transfer_data_length PACKED; /* length in bytes */
- unsigned int command_link PACKED; /* for linking command chains */
- unsigned char scsi_command_link_id; /* identifies command in chain */
- unsigned char number_of_sg_list; /* (if sg is set) 8 bytes per list */
- unsigned char length_of_sense_byte;
- unsigned char length_of_scsi_cdbs; /* 6, 10, or 12 */
- unsigned char scsi_cdbs[12]; /* SCSI commands */
- unsigned char adapter_status; /* non-zero indicates HA error */
- unsigned char target_status; /* non-zero indicates target error */
- u32 sense_data PACKED;
- /* The following fields are for software only. They are included in
- the MSCP structure because they are associated with SCSI requests. */
- void (*done) (struct scsi_cmnd *);
- struct scsi_cmnd *SCint;
- ultrastor_sg_list sglist[ULTRASTOR_24F_MAX_SG]; /* use larger size for 24F */
-};
-
-
-/* Port addresses (relative to the base address) */
-#define U14F_PRODUCT_ID(port) ((port) + 0x4)
-#define CONFIG(port) ((port) + 0x6)
-
-/* Port addresses relative to the doorbell base address. */
-#define LCL_DOORBELL_MASK(port) ((port) + 0x0)
-#define LCL_DOORBELL_INTR(port) ((port) + 0x1)
-#define SYS_DOORBELL_MASK(port) ((port) + 0x2)
-#define SYS_DOORBELL_INTR(port) ((port) + 0x3)
-
-
-/* Used to store configuration info read from config i/o registers. Most of
- this is not used yet, but might as well save it.
-
- This structure also holds port addresses that are not at the same offset
- on the 14F and 24F.
-
- This structure holds all data that must be duplicated to support multiple
- adapters. */
-
-static struct ultrastor_config
-{
- unsigned short port_address; /* base address of card */
- unsigned short doorbell_address; /* base address of doorbell CSRs */
- unsigned short ogm_address; /* base address of OGM */
- unsigned short icm_address; /* base address of ICM */
- const void *bios_segment;
- unsigned char interrupt: 4;
- unsigned char dma_channel: 3;
- unsigned char bios_drive_number: 1;
- unsigned char heads;
- unsigned char sectors;
- unsigned char ha_scsi_id: 3;
- unsigned char subversion: 4;
- unsigned char revision;
- /* The slot number is used to distinguish the 24F (slot != 0) from
- the 14F and 34F (slot == 0). */
- unsigned char slot;
-
-#ifdef PRINT_U24F_VERSION
- volatile int csir_done;
-#endif
-
- /* A pool of MSCP structures for this adapter, and a bitmask of
- busy structures. (If ULTRASTOR_14F_MAX_CMDS == 1, a 1 byte
- busy flag is used instead.) */
-
-#if ULTRASTOR_MAX_CMDS == 1
- unsigned char mscp_busy;
-#else
- unsigned long mscp_free;
-#endif
- volatile unsigned char aborted[ULTRASTOR_MAX_CMDS];
- struct mscp mscp[ULTRASTOR_MAX_CMDS];
-} config = {0};
-
-/* Set this to 1 to reset the SCSI bus on error. */
-static int ultrastor_bus_reset;
-
-
-/* Allowed BIOS base addresses (NULL indicates reserved) */
-static const void *const bios_segment_table[8] = {
- NULL, (void *)0xC4000, (void *)0xC8000, (void *)0xCC000,
- (void *)0xD0000, (void *)0xD4000, (void *)0xD8000, (void *)0xDC000,
-};
-
-/* Allowed IRQs for 14f */
-static const unsigned char interrupt_table_14f[4] = { 15, 14, 11, 10 };
-
-/* Allowed DMA channels for 14f (0 indicates reserved) */
-static const unsigned char dma_channel_table_14f[4] = { 5, 6, 7, 0 };
-
-/* Head/sector mappings allowed by 14f */
-static const struct {
- unsigned char heads;
- unsigned char sectors;
-} mapping_table[4] = { { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 } };
-
-#ifndef PORT_OVERRIDE
-/* ??? A probe of address 0x310 screws up NE2000 cards */
-static const unsigned short ultrastor_ports_14f[] = {
- 0x330, 0x340, /*0x310,*/ 0x230, 0x240, 0x210, 0x130, 0x140,
-};
-#endif
-
-static void ultrastor_interrupt(void *);
-static irqreturn_t do_ultrastor_interrupt(int, void *);
-static inline void build_sg_list(struct mscp *, struct scsi_cmnd *SCpnt);
-
-
-/* Always called with host lock held */
-
-static inline int find_and_clear_bit_16(unsigned long *field)
-{
- int rv;
-
- if (*field == 0)
- panic("No free mscp");
-
- asm volatile (
- "xorl %0,%0\n\t"
- "0: bsfw %1,%w0\n\t"
- "btr %0,%1\n\t"
- "jnc 0b"
- : "=&r" (rv), "+m" (*field) :);
-
- return rv;
-}
-
-/* This has been re-implemented with the help of Richard Earnshaw,
- <rwe@pegasus.esprit.ec.org> and works with gcc-2.5.8 and gcc-2.6.0.
- The instability noted by jfc below appears to be a bug in
- gcc-2.5.x when compiling w/o optimization. --Caleb
-
- This asm is fragile: it doesn't work without the casts and it may
- not work without optimization. Maybe I should add a swap builtin
- to gcc. --jfc */
-static inline unsigned char xchgb(unsigned char reg,
- volatile unsigned char *mem)
-{
- __asm__ ("xchgb %0,%1" : "=q" (reg), "=m" (*mem) : "0" (reg));
- return reg;
-}
-
-#if ULTRASTOR_DEBUG & (UD_COMMAND | UD_ABORT)
-
-/* Always called with the host lock held */
-static void log_ultrastor_abort(struct ultrastor_config *config,
- int command)
-{
- static char fmt[80] = "abort %d (%x); MSCP free pool: %x;";
- int i;
-
- for (i = 0; i < ULTRASTOR_MAX_CMDS; i++)
- {
- fmt[20 + i*2] = ' ';
- if (! (config->mscp_free & (1 << i)))
- fmt[21 + i*2] = '0' + config->mscp[i].target_id;
- else
- fmt[21 + i*2] = '-';
- }
- fmt[20 + ULTRASTOR_MAX_CMDS * 2] = '\n';
- fmt[21 + ULTRASTOR_MAX_CMDS * 2] = 0;
- printk(fmt, command, &config->mscp[command], config->mscp_free);
-
-}
-#endif
-
-static int ultrastor_14f_detect(struct scsi_host_template * tpnt)
-{
- size_t i;
- unsigned char in_byte, version_byte = 0;
- struct config_1 {
- unsigned char bios_segment: 3;
- unsigned char removable_disks_as_fixed: 1;
- unsigned char interrupt: 2;
- unsigned char dma_channel: 2;
- } config_1;
- struct config_2 {
- unsigned char ha_scsi_id: 3;
- unsigned char mapping_mode: 2;
- unsigned char bios_drive_number: 1;
- unsigned char tfr_port: 2;
- } config_2;
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: called\n");
-#endif
-
- /* If a 24F has already been configured, don't look for a 14F. */
- if (config.bios_segment)
- return FALSE;
-
-#ifdef PORT_OVERRIDE
- if(!request_region(PORT_OVERRIDE, 0xc, "ultrastor")) {
- printk("Ultrastor I/O space already in use\n");
- return FALSE;
- };
- config.port_address = PORT_OVERRIDE;
-#else
- for (i = 0; i < ARRAY_SIZE(ultrastor_ports_14f); i++) {
- if(!request_region(ultrastor_ports_14f[i], 0x0c, "ultrastor")) continue;
- config.port_address = ultrastor_ports_14f[i];
-#endif
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: testing port address %03X\n", config.port_address);
-#endif
-
- in_byte = inb(U14F_PRODUCT_ID(config.port_address));
- if (in_byte != US14F_PRODUCT_ID_0) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
-# ifdef PORT_OVERRIDE
- printk("US14F: detect: wrong product ID 0 - %02X\n", in_byte);
-# else
- printk("US14F: detect: no adapter at port %03X\n", config.port_address);
-# endif
-#endif
-#ifdef PORT_OVERRIDE
- goto out_release_port;
-#else
- release_region(config.port_address, 0x0c);
- continue;
-#endif
- }
- in_byte = inb(U14F_PRODUCT_ID(config.port_address) + 1);
- /* Only upper nibble is significant for Product ID 1 */
- if ((in_byte & 0xF0) != US14F_PRODUCT_ID_1) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
-# ifdef PORT_OVERRIDE
- printk("US14F: detect: wrong product ID 1 - %02X\n", in_byte);
-# else
- printk("US14F: detect: no adapter at port %03X\n", config.port_address);
-# endif
-#endif
-#ifdef PORT_OVERRIDE
- goto out_release_port;
-#else
- release_region(config.port_address, 0x0c);
- continue;
-#endif
- }
- version_byte = in_byte;
-#ifndef PORT_OVERRIDE
- break;
- }
- if (i == ARRAY_SIZE(ultrastor_ports_14f)) {
-# if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: no port address found!\n");
-# endif
- /* all ports probed already released - we can just go straight out */
- return FALSE;
- }
-#endif
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: adapter found at port address %03X\n",
- config.port_address);
-#endif
-
- /* Set local doorbell mask to disallow bus reset unless
- ultrastor_bus_reset is true. */
- outb(ultrastor_bus_reset ? 0xc2 : 0x82, LCL_DOORBELL_MASK(config.port_address));
-
- /* All above tests passed, must be the right thing. Get some useful
- info. */
-
- /* Register the I/O space that we use */
-
- *(char *)&config_1 = inb(CONFIG(config.port_address + 0));
- *(char *)&config_2 = inb(CONFIG(config.port_address + 1));
- config.bios_segment = bios_segment_table[config_1.bios_segment];
- config.doorbell_address = config.port_address;
- config.ogm_address = config.port_address + 0x8;
- config.icm_address = config.port_address + 0xC;
- config.interrupt = interrupt_table_14f[config_1.interrupt];
- config.ha_scsi_id = config_2.ha_scsi_id;
- config.heads = mapping_table[config_2.mapping_mode].heads;
- config.sectors = mapping_table[config_2.mapping_mode].sectors;
- config.bios_drive_number = config_2.bios_drive_number;
- config.subversion = (version_byte & 0x0F);
- if (config.subversion == U34F)
- config.dma_channel = 0;
- else
- config.dma_channel = dma_channel_table_14f[config_1.dma_channel];
-
- if (!config.bios_segment) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: not detected.\n");
-#endif
- goto out_release_port;
- }
-
- /* Final consistency check, verify previous info. */
- if (config.subversion != U34F)
- if (!config.dma_channel || !(config_2.tfr_port & 0x2)) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: consistency check failed\n");
-#endif
- goto out_release_port;
- }
-
- /* If we were TRULY paranoid, we could issue a host adapter inquiry
- command here and verify the data returned. But frankly, I'm
- exhausted! */
-
- /* Finally! Now I'm satisfied... */
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: detect succeeded\n"
- " Port address: %03X\n"
- " BIOS segment: %05X\n"
- " Interrupt: %u\n"
- " DMA channel: %u\n"
- " H/A SCSI ID: %u\n"
- " Subversion: %u\n",
- config.port_address, config.bios_segment, config.interrupt,
- config.dma_channel, config.ha_scsi_id, config.subversion);
-#endif
- tpnt->this_id = config.ha_scsi_id;
- tpnt->unchecked_isa_dma = (config.subversion != U34F);
-
-#if ULTRASTOR_MAX_CMDS > 1
- config.mscp_free = ~0;
-#endif
-
- /*
- * Brrr, &config.mscp[0].SCint->host) it is something magical....
- * XXX and FIXME
- */
- if (request_irq(config.interrupt, do_ultrastor_interrupt, 0, "Ultrastor", &config.mscp[0].SCint->device->host)) {
- printk("Unable to allocate IRQ%u for UltraStor controller.\n",
- config.interrupt);
- goto out_release_port;
- }
- if (config.dma_channel && request_dma(config.dma_channel,"Ultrastor")) {
- printk("Unable to allocate DMA channel %u for UltraStor controller.\n",
- config.dma_channel);
- free_irq(config.interrupt, NULL);
- goto out_release_port;
- }
- tpnt->sg_tablesize = ULTRASTOR_14F_MAX_SG;
- printk("UltraStor driver version" VERSION ". Using %d SG lists.\n",
- ULTRASTOR_14F_MAX_SG);
-
- return TRUE;
-out_release_port:
- release_region(config.port_address, 0x0c);
- return FALSE;
-}
-
-static int ultrastor_24f_detect(struct scsi_host_template * tpnt)
-{
- int i;
- struct Scsi_Host * shpnt = NULL;
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US24F: detect");
-#endif
-
- /* probe each EISA slot at slot address C80 */
- for (i = 1; i < 15; i++)
- {
- unsigned char config_1, config_2;
- unsigned short addr = (i << 12) | ULTRASTOR_24F_PORT;
-
- if (inb(addr) != US24F_PRODUCT_ID_0 &&
- inb(addr+1) != US24F_PRODUCT_ID_1 &&
- inb(addr+2) != US24F_PRODUCT_ID_2)
- continue;
-
- config.revision = inb(addr+3);
- config.slot = i;
- if (! (inb(addr+4) & 1))
- {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("U24F: found disabled card in slot %u\n", i);
-#endif
- continue;
- }
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("U24F: found card in slot %u\n", i);
-#endif
- config_1 = inb(addr + 5);
- config.bios_segment = bios_segment_table[config_1 & 7];
- switch(config_1 >> 4)
- {
- case 1:
- config.interrupt = 15;
- break;
- case 2:
- config.interrupt = 14;
- break;
- case 4:
- config.interrupt = 11;
- break;
- case 8:
- config.interrupt = 10;
- break;
- default:
- printk("U24F: invalid IRQ\n");
- return FALSE;
- }
-
- /* BIOS addr set */
- /* base port set */
- config.port_address = addr;
- config.doorbell_address = addr + 12;
- config.ogm_address = addr + 0x17;
- config.icm_address = addr + 0x1C;
- config_2 = inb(addr + 7);
- config.ha_scsi_id = config_2 & 7;
- config.heads = mapping_table[(config_2 >> 3) & 3].heads;
- config.sectors = mapping_table[(config_2 >> 3) & 3].sectors;
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US24F: detect: detect succeeded\n"
- " Port address: %03X\n"
- " BIOS segment: %05X\n"
- " Interrupt: %u\n"
- " H/A SCSI ID: %u\n",
- config.port_address, config.bios_segment,
- config.interrupt, config.ha_scsi_id);
-#endif
- tpnt->this_id = config.ha_scsi_id;
- tpnt->unchecked_isa_dma = 0;
- tpnt->sg_tablesize = ULTRASTOR_24F_MAX_SG;
-
- shpnt = scsi_register(tpnt, 0);
- if (!shpnt) {
- printk(KERN_WARNING "(ultrastor:) Could not register scsi device. Aborting registration.\n");
- free_irq(config.interrupt, do_ultrastor_interrupt);
- return FALSE;
- }
-
- if (request_irq(config.interrupt, do_ultrastor_interrupt, 0, "Ultrastor", shpnt))
- {
- printk("Unable to allocate IRQ%u for UltraStor controller.\n",
- config.interrupt);
- return FALSE;
- }
-
- shpnt->irq = config.interrupt;
- shpnt->dma_channel = config.dma_channel;
- shpnt->io_port = config.port_address;
-
-#if ULTRASTOR_MAX_CMDS > 1
- config.mscp_free = ~0;
-#endif
- /* Mark ICM and OGM free */
- outb(0, addr + 0x16);
- outb(0, addr + 0x1B);
-
- /* Set local doorbell mask to disallow bus reset unless
- ultrastor_bus_reset is true. */
- outb(ultrastor_bus_reset ? 0xc2 : 0x82, LCL_DOORBELL_MASK(addr+12));
- outb(0x02, SYS_DOORBELL_MASK(addr+12));
- printk("UltraStor driver version " VERSION ". Using %d SG lists.\n",
- tpnt->sg_tablesize);
- return TRUE;
- }
- return FALSE;
-}
-
-static int ultrastor_detect(struct scsi_host_template * tpnt)
-{
- tpnt->proc_name = "ultrastor";
- return ultrastor_14f_detect(tpnt) || ultrastor_24f_detect(tpnt);
-}
-
-static int ultrastor_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, NULL);
- if (shost->dma_channel != 0xff)
- free_dma(shost->dma_channel);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- scsi_unregister(shost);
- return 0;
-}
-
-static const char *ultrastor_info(struct Scsi_Host * shpnt)
-{
- static char buf[64];
-
- if (config.slot)
- sprintf(buf, "UltraStor 24F SCSI @ Slot %u IRQ%u",
- config.slot, config.interrupt);
- else if (config.subversion)
- sprintf(buf, "UltraStor 34F SCSI @ Port %03X BIOS %05X IRQ%u",
- config.port_address, (int)config.bios_segment,
- config.interrupt);
- else
- sprintf(buf, "UltraStor 14F SCSI @ Port %03X BIOS %05X IRQ%u DMA%u",
- config.port_address, (int)config.bios_segment,
- config.interrupt, config.dma_channel);
- return buf;
-}
-
-static inline void build_sg_list(struct mscp *mscp, struct scsi_cmnd *SCpnt)
-{
- struct scatterlist *sg;
- long transfer_length = 0;
- int i, max;
-
- max = scsi_sg_count(SCpnt);
- scsi_for_each_sg(SCpnt, sg, max, i) {
- mscp->sglist[i].address = isa_page_to_bus(sg_page(sg)) + sg->offset;
- mscp->sglist[i].num_bytes = sg->length;
- transfer_length += sg->length;
- }
- mscp->number_of_sg_list = max;
- mscp->transfer_data = isa_virt_to_bus(mscp->sglist);
- /* ??? May not be necessary. Docs are unclear as to whether transfer
- length field is ignored or whether it should be set to the total
- number of bytes of the transfer. */
- mscp->transfer_data_length = transfer_length;
-}
-
-static int ultrastor_queuecommand_lck(struct scsi_cmnd *SCpnt,
- void (*done) (struct scsi_cmnd *))
-{
- struct mscp *my_mscp;
-#if ULTRASTOR_MAX_CMDS > 1
- int mscp_index;
-#endif
- unsigned int status;
-
- /* Next test is for debugging; "can't happen" */
- if ((config.mscp_free & ((1U << ULTRASTOR_MAX_CMDS) - 1)) == 0)
- panic("ultrastor_queuecommand: no free MSCP\n");
- mscp_index = find_and_clear_bit_16(&config.mscp_free);
-
- /* Has the command been aborted? */
- if (xchgb(0xff, &config.aborted[mscp_index]) != 0)
- {
- status = DID_ABORT << 16;
- goto aborted;
- }
-
- my_mscp = &config.mscp[mscp_index];
-
- *(unsigned char *)my_mscp = OP_SCSI | (DTD_SCSI << 3);
-
- /* Tape drives don't work properly if the cache is used. The SCSI
- READ command for a tape doesn't have a block offset, and the adapter
- incorrectly assumes that all reads from the tape read the same
- blocks. Results will depend on read buffer size and other disk
- activity.
-
- ??? Which other device types should never use the cache? */
- my_mscp->ca = SCpnt->device->type != TYPE_TAPE;
- my_mscp->target_id = SCpnt->device->id;
- my_mscp->ch_no = 0;
- my_mscp->lun = SCpnt->device->lun;
- if (scsi_sg_count(SCpnt)) {
- /* Set scatter/gather flag in SCSI command packet */
- my_mscp->sg = TRUE;
- build_sg_list(my_mscp, SCpnt);
- } else {
- /* Unset scatter/gather flag in SCSI command packet */
- my_mscp->sg = FALSE;
- my_mscp->transfer_data = isa_virt_to_bus(scsi_sglist(SCpnt));
- my_mscp->transfer_data_length = scsi_bufflen(SCpnt);
- }
- my_mscp->command_link = 0; /*???*/
- my_mscp->scsi_command_link_id = 0; /*???*/
- my_mscp->length_of_sense_byte = SCSI_SENSE_BUFFERSIZE;
- my_mscp->length_of_scsi_cdbs = SCpnt->cmd_len;
- memcpy(my_mscp->scsi_cdbs, SCpnt->cmnd, my_mscp->length_of_scsi_cdbs);
- my_mscp->adapter_status = 0;
- my_mscp->target_status = 0;
- my_mscp->sense_data = isa_virt_to_bus(&SCpnt->sense_buffer);
- my_mscp->done = done;
- my_mscp->SCint = SCpnt;
- SCpnt->host_scribble = (unsigned char *)my_mscp;
-
- /* Find free OGM slot. On 24F, look for OGM status byte == 0.
- On 14F and 34F, wait for local interrupt pending flag to clear.
-
- FIXME: now we are using new_eh we should punt here and let the
- midlayer sort it out */
-
-retry:
- if (config.slot)
- while (inb(config.ogm_address - 1) != 0 && config.aborted[mscp_index] == 0xff)
- barrier();
-
- /* else??? */
-
- while ((inb(LCL_DOORBELL_INTR(config.doorbell_address)) & (config.slot ? 2 : 1)) && config.aborted[mscp_index] == 0xff)
- barrier();
-
- /* To avoid race conditions, keep the code to write to the adapter
- atomic. This simplifies the abort code. Right now the
- scsi mid layer has the host_lock already held
- */
-
- if (inb(LCL_DOORBELL_INTR(config.doorbell_address)) & (config.slot ? 2 : 1))
- goto retry;
-
- status = xchgb(0, &config.aborted[mscp_index]);
- if (status != 0xff) {
-
-#if ULTRASTOR_DEBUG & (UD_COMMAND | UD_ABORT)
- printk("USx4F: queuecommand: aborted\n");
-#if ULTRASTOR_MAX_CMDS > 1
- log_ultrastor_abort(&config, mscp_index);
-#endif
-#endif
- status <<= 16;
-
- aborted:
- set_bit(mscp_index, &config.mscp_free);
- /* If the driver queues commands, call the done proc here. Otherwise
- return an error. */
-#if ULTRASTOR_MAX_CMDS > 1
- SCpnt->result = status;
- done(SCpnt);
- return 0;
-#else
- return status;
-#endif
- }
-
- /* Store pointer in OGM address bytes */
- outl(isa_virt_to_bus(my_mscp), config.ogm_address);
-
- /* Issue OGM interrupt */
- if (config.slot) {
- /* Write OGM command register on 24F */
- outb(1, config.ogm_address - 1);
- outb(0x2, LCL_DOORBELL_INTR(config.doorbell_address));
- } else {
- outb(0x1, LCL_DOORBELL_INTR(config.doorbell_address));
- }
-
-#if (ULTRASTOR_DEBUG & UD_COMMAND)
- printk("USx4F: queuecommand: returning\n");
-#endif
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(ultrastor_queuecommand)
-
-/* This code must deal with 2 cases:
-
- 1. The command has not been written to the OGM. In this case, set
- the abort flag and return.
-
- 2. The command has been written to the OGM and is stuck somewhere in
- the adapter.
-
- 2a. On a 24F, ask the adapter to abort the command. It will interrupt
- when it does.
-
- 2b. Call the command's done procedure.
-
- */
-
-static int ultrastor_abort(struct scsi_cmnd *SCpnt)
-{
-#if ULTRASTOR_DEBUG & UD_ABORT
- char out[108];
- unsigned char icm_status = 0, ogm_status = 0;
- unsigned int icm_addr = 0, ogm_addr = 0;
-#endif
- unsigned int mscp_index;
- unsigned char old_aborted;
- unsigned long flags;
- void (*done)(struct scsi_cmnd *);
- struct Scsi_Host *host = SCpnt->device->host;
-
- if(config.slot)
- return FAILED; /* Do not attempt an abort for the 24f */
-
- /* Simple consistency checking */
- if(!SCpnt->host_scribble)
- return FAILED;
-
- mscp_index = ((struct mscp *)SCpnt->host_scribble) - config.mscp;
- if (mscp_index >= ULTRASTOR_MAX_CMDS)
- panic("Ux4F aborting invalid MSCP");
-
-#if ULTRASTOR_DEBUG & UD_ABORT
- if (config.slot)
- {
- int port0 = (config.slot << 12) | 0xc80;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(host->host_lock, flags);
- strcpy(out, "OGM %d:%x ICM %d:%x ports: ");
- for (i = 0; i < 16; i++)
- {
- unsigned char p = inb(port0 + i);
- out[28 + i * 3] = "0123456789abcdef"[p >> 4];
- out[29 + i * 3] = "0123456789abcdef"[p & 15];
- out[30 + i * 3] = ' ';
- }
- out[28 + i * 3] = '\n';
- out[29 + i * 3] = 0;
- ogm_status = inb(port0 + 22);
- ogm_addr = (unsigned int)isa_bus_to_virt(inl(port0 + 23));
- icm_status = inb(port0 + 27);
- icm_addr = (unsigned int)isa_bus_to_virt(inl(port0 + 28));
- spin_unlock_irqrestore(host->host_lock, flags);
- }
-
- /* First check to see if an interrupt is pending. I suspect the SiS
- chipset loses interrupts. (I also suspect is mangles data, but
- one bug at a time... */
- if (config.slot ? inb(config.icm_address - 1) == 2 :
- (inb(SYS_DOORBELL_INTR(config.doorbell_address)) & 1))
- {
- printk("Ux4F: abort while completed command pending\n");
-
- spin_lock_irqsave(host->host_lock, flags);
- /* FIXME: Ewww... need to think about passing host around properly */
- ultrastor_interrupt(NULL);
- spin_unlock_irqrestore(host->host_lock, flags);
- return SUCCESS;
- }
-#endif
-
- old_aborted = xchgb(DID_ABORT, &config.aborted[mscp_index]);
-
- /* aborted == 0xff is the signal that queuecommand has not yet sent
- the command. It will notice the new abort flag and fail. */
- if (old_aborted == 0xff)
- return SUCCESS;
-
- /* On 24F, send an abort MSCP request. The adapter will interrupt
- and the interrupt handler will call done. */
- if (config.slot && inb(config.ogm_address - 1) == 0)
- {
- unsigned long flags;
-
- spin_lock_irqsave(host->host_lock, flags);
- outl(isa_virt_to_bus(&config.mscp[mscp_index]), config.ogm_address);
- udelay(8);
- outb(0x80, config.ogm_address - 1);
- outb(0x2, LCL_DOORBELL_INTR(config.doorbell_address));
-#if ULTRASTOR_DEBUG & UD_ABORT
- log_ultrastor_abort(&config, mscp_index);
- printk(out, ogm_status, ogm_addr, icm_status, icm_addr);
-#endif
- spin_unlock_irqrestore(host->host_lock, flags);
- /* FIXME: add a wait for the abort to complete */
- return SUCCESS;
- }
-
-#if ULTRASTOR_DEBUG & UD_ABORT
- log_ultrastor_abort(&config, mscp_index);
-#endif
-
- /* Can't request a graceful abort. Either this is not a 24F or
- the OGM is busy. Don't free the command -- the adapter might
- still be using it. Setting SCint = 0 causes the interrupt
- handler to ignore the command. */
-
- /* FIXME - devices that implement soft resets will still be running
- the command after a bus reset. We would probably rather leave
- the command in the queue. The upper level code will automatically
- leave the command in the active state instead of requeueing it. ERY */
-
-#if ULTRASTOR_DEBUG & UD_ABORT
- if (config.mscp[mscp_index].SCint != SCpnt)
- printk("abort: command mismatch, %p != %p\n",
- config.mscp[mscp_index].SCint, SCpnt);
-#endif
- if (config.mscp[mscp_index].SCint == NULL)
- return FAILED;
-
- if (config.mscp[mscp_index].SCint != SCpnt) panic("Bad abort");
- config.mscp[mscp_index].SCint = NULL;
- done = config.mscp[mscp_index].done;
- config.mscp[mscp_index].done = NULL;
- SCpnt->result = DID_ABORT << 16;
-
- /* Take the host lock to guard against scsi layer re-entry */
- done(SCpnt);
-
- /* Need to set a timeout here in case command never completes. */
- return SUCCESS;
-}
-
-static int ultrastor_host_reset(struct scsi_cmnd * SCpnt)
-{
- unsigned long flags;
- int i;
- struct Scsi_Host *host = SCpnt->device->host;
-
-#if (ULTRASTOR_DEBUG & UD_RESET)
- printk("US14F: reset: called\n");
-#endif
-
- if(config.slot)
- return FAILED;
-
- spin_lock_irqsave(host->host_lock, flags);
- /* Reset the adapter and SCSI bus. The SCSI bus reset can be
- inhibited by clearing ultrastor_bus_reset before probe. */
- outb(0xc0, LCL_DOORBELL_INTR(config.doorbell_address));
- if (config.slot)
- {
- outb(0, config.ogm_address - 1);
- outb(0, config.icm_address - 1);
- }
-
-#if ULTRASTOR_MAX_CMDS == 1
- if (config.mscp_busy && config.mscp->done && config.mscp->SCint)
- {
- config.mscp->SCint->result = DID_RESET << 16;
- config.mscp->done(config.mscp->SCint);
- }
- config.mscp->SCint = 0;
-#else
- for (i = 0; i < ULTRASTOR_MAX_CMDS; i++)
- {
- if (! (config.mscp_free & (1 << i)) &&
- config.mscp[i].done && config.mscp[i].SCint)
- {
- config.mscp[i].SCint->result = DID_RESET << 16;
- config.mscp[i].done(config.mscp[i].SCint);
- config.mscp[i].done = NULL;
- }
- config.mscp[i].SCint = NULL;
- }
-#endif
-
- /* FIXME - if the device implements soft resets, then the command
- will still be running. ERY
-
- Even bigger deal with new_eh!
- */
-
- memset((unsigned char *)config.aborted, 0, sizeof config.aborted);
-#if ULTRASTOR_MAX_CMDS == 1
- config.mscp_busy = 0;
-#else
- config.mscp_free = ~0;
-#endif
-
- spin_unlock_irqrestore(host->host_lock, flags);
- return SUCCESS;
-
-}
-
-int ultrastor_biosparam(struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int * dkinfo)
-{
- int size = capacity;
- unsigned int s = config.heads * config.sectors;
-
- dkinfo[0] = config.heads;
- dkinfo[1] = config.sectors;
- dkinfo[2] = size / s; /* Ignore partial cylinders */
-#if 0
- if (dkinfo[2] > 1024)
- dkinfo[2] = 1024;
-#endif
- return 0;
-}
-
-static void ultrastor_interrupt(void *dev_id)
-{
- unsigned int status;
-#if ULTRASTOR_MAX_CMDS > 1
- unsigned int mscp_index;
-#endif
- struct mscp *mscp;
- void (*done) (struct scsi_cmnd *);
- struct scsi_cmnd *SCtmp;
-
-#if ULTRASTOR_MAX_CMDS == 1
- mscp = &config.mscp[0];
-#else
- mscp = (struct mscp *)isa_bus_to_virt(inl(config.icm_address));
- mscp_index = mscp - config.mscp;
- if (mscp_index >= ULTRASTOR_MAX_CMDS) {
- printk("Ux4F interrupt: bad MSCP address %x\n", (unsigned int) mscp);
- /* A command has been lost. Reset and report an error
- for all commands. */
- ultrastor_host_reset(dev_id);
- return;
- }
-#endif
-
- /* Clean ICM slot (set ICMINT bit to 0) */
- if (config.slot) {
- unsigned char icm_status = inb(config.icm_address - 1);
-#if ULTRASTOR_DEBUG & (UD_INTERRUPT|UD_ERROR|UD_ABORT)
- if (icm_status != 1 && icm_status != 2)
- printk("US24F: ICM status %x for MSCP %d (%x)\n", icm_status,
- mscp_index, (unsigned int) mscp);
-#endif
- /* The manual says clear interrupt then write 0 to ICM status.
- This seems backwards, but I'll do it anyway. --jfc */
- outb(2, SYS_DOORBELL_INTR(config.doorbell_address));
- outb(0, config.icm_address - 1);
- if (icm_status == 4) {
- printk("UltraStor abort command failed\n");
- return;
- }
- if (icm_status == 3) {
- void (*done)(struct scsi_cmnd *) = mscp->done;
- if (done) {
- mscp->done = NULL;
- mscp->SCint->result = DID_ABORT << 16;
- done(mscp->SCint);
- }
- return;
- }
- } else {
- outb(1, SYS_DOORBELL_INTR(config.doorbell_address));
- }
-
- SCtmp = mscp->SCint;
- mscp->SCint = NULL;
-
- if (!SCtmp)
- {
-#if ULTRASTOR_DEBUG & (UD_ABORT|UD_INTERRUPT)
- printk("MSCP %d (%x): no command\n", mscp_index, (unsigned int) mscp);
-#endif
-#if ULTRASTOR_MAX_CMDS == 1
- config.mscp_busy = FALSE;
-#else
- set_bit(mscp_index, &config.mscp_free);
-#endif
- config.aborted[mscp_index] = 0;
- return;
- }
-
- /* Save done locally and zero before calling. This is needed as
- once we call done, we may get another command queued before this
- interrupt service routine can return. */
- done = mscp->done;
- mscp->done = NULL;
-
- /* Let the higher levels know that we're done */
- switch (mscp->adapter_status)
- {
- case 0:
- status = DID_OK << 16;
- break;
- case 0x01: /* invalid command */
- case 0x02: /* invalid parameters */
- case 0x03: /* invalid data list */
- default:
- status = DID_ERROR << 16;
- break;
- case 0x84: /* SCSI bus abort */
- status = DID_ABORT << 16;
- break;
- case 0x91:
- status = DID_TIME_OUT << 16;
- break;
- }
-
- SCtmp->result = status | mscp->target_status;
-
- SCtmp->host_scribble = NULL;
-
- /* Free up mscp block for next command */
-#if ULTRASTOR_MAX_CMDS == 1
- config.mscp_busy = FALSE;
-#else
- set_bit(mscp_index, &config.mscp_free);
-#endif
-
-#if ULTRASTOR_DEBUG & (UD_ABORT|UD_INTERRUPT)
- if (config.aborted[mscp_index])
- printk("Ux4 interrupt: MSCP %d (%x) aborted = %d\n",
- mscp_index, (unsigned int) mscp, config.aborted[mscp_index]);
-#endif
- config.aborted[mscp_index] = 0;
-
- if (done)
- done(SCtmp);
- else
- printk("US14F: interrupt: unexpected interrupt\n");
-
- if (config.slot ? inb(config.icm_address - 1) :
- (inb(SYS_DOORBELL_INTR(config.doorbell_address)) & 1))
-#if (ULTRASTOR_DEBUG & UD_MULTI_CMD)
- printk("Ux4F: multiple commands completed\n");
-#else
- ;
-#endif
-
-#if (ULTRASTOR_DEBUG & UD_INTERRUPT)
- printk("USx4F: interrupt: returning\n");
-#endif
-}
-
-static irqreturn_t do_ultrastor_interrupt(int irq, void *dev_id)
-{
- unsigned long flags;
- struct Scsi_Host *dev = dev_id;
-
- spin_lock_irqsave(dev->host_lock, flags);
- ultrastor_interrupt(dev_id);
- spin_unlock_irqrestore(dev->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-MODULE_LICENSE("GPL");
-
-static struct scsi_host_template driver_template = {
- .name = "UltraStor 14F/24F/34F",
- .detect = ultrastor_detect,
- .release = ultrastor_release,
- .info = ultrastor_info,
- .queuecommand = ultrastor_queuecommand,
- .eh_abort_handler = ultrastor_abort,
- .eh_host_reset_handler = ultrastor_host_reset,
- .bios_param = ultrastor_biosparam,
- .can_queue = ULTRASTOR_MAX_CMDS,
- .sg_tablesize = ULTRASTOR_14F_MAX_SG,
- .cmd_per_lun = ULTRASTOR_MAX_CMDS_PER_LUN,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
-};
-#include "scsi_module.c"
+++ /dev/null
-/*
- * ultrastor.c (C) 1991 David B. Gentzel
- * Low-level scsi driver for UltraStor 14F
- * by David B. Gentzel, Whitfield Software Services, Carnegie, PA
- * (gentzel@nova.enet.dec.com)
- * scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)
- * 24F support by John F. Carr (jfc@athena.mit.edu)
- * John's work modified by Caleb Epstein (cae@jpmorgan.com) and
- * Eric Youngdale (eric@tantalus.nrl.navy.mil).
- * Thanks to UltraStor for providing the necessary documentation
- */
-
-#ifndef _ULTRASTOR_H
-#define _ULTRASTOR_H
-
-static int ultrastor_detect(struct scsi_host_template *);
-static const char *ultrastor_info(struct Scsi_Host *shpnt);
-static int ultrastor_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static int ultrastor_abort(struct scsi_cmnd *);
-static int ultrastor_host_reset(struct scsi_cmnd *);
-static int ultrastor_biosparam(struct scsi_device *, struct block_device *,
- sector_t, int *);
-
-
-#define ULTRASTOR_14F_MAX_SG 16
-#define ULTRASTOR_24F_MAX_SG 33
-
-#define ULTRASTOR_MAX_CMDS_PER_LUN 5
-#define ULTRASTOR_MAX_CMDS 16
-
-#define ULTRASTOR_24F_PORT 0xC80
-
-
-#ifdef ULTRASTOR_PRIVATE
-
-#define UD_ABORT 0x0001
-#define UD_COMMAND 0x0002
-#define UD_DETECT 0x0004
-#define UD_INTERRUPT 0x0008
-#define UD_RESET 0x0010
-#define UD_MULTI_CMD 0x0020
-#define UD_CSIR 0x0040
-#define UD_ERROR 0x0080
-
-/* #define PORT_OVERRIDE 0x330 */
-
-/* Values for the PRODUCT_ID ports for the 14F */
-#define US14F_PRODUCT_ID_0 0x56
-#define US14F_PRODUCT_ID_1 0x40 /* NOTE: Only upper nibble is used */
-
-#define US24F_PRODUCT_ID_0 0x56
-#define US24F_PRODUCT_ID_1 0x63
-#define US24F_PRODUCT_ID_2 0x02
-
-/* Subversion values */
-#define U14F 0
-#define U34F 1
-
-/* MSCP field values */
-
-/* Opcode */
-#define OP_HOST_ADAPTER 0x1
-#define OP_SCSI 0x2
-#define OP_RESET 0x4
-
-/* Date Transfer Direction */
-#define DTD_SCSI 0x0
-#define DTD_IN 0x1
-#define DTD_OUT 0x2
-#define DTD_NONE 0x3
-
-/* Host Adapter command subcodes */
-#define HA_CMD_INQUIRY 0x1
-#define HA_CMD_SELF_DIAG 0x2
-#define HA_CMD_READ_BUFF 0x3
-#define HA_CMD_WRITE_BUFF 0x4
-
-#endif
-
-#endif
struct virtio_scsi_cmd *cmd = buf;
if (cmd->comp)
- complete_all(cmd->comp);
+ complete(cmd->comp);
}
static void virtscsi_ctrl_done(struct virtqueue *vq)
+++ /dev/null
-/* $Id: $
- * linux/drivers/scsi/wd7000.c
- *
- * Copyright (C) 1992 Thomas Wuensche
- * closely related to the aha1542 driver from Tommy Thorn
- * ( as close as different hardware allows on a lowlevel-driver :-) )
- *
- * Revised (and renamed) by John Boyd <boyd@cis.ohio-state.edu> to
- * accommodate Eric Youngdale's modifications to scsi.c. Nov 1992.
- *
- * Additional changes to support scatter/gather. Dec. 1992. tw/jb
- *
- * No longer tries to reset SCSI bus at boot (it wasn't working anyway).
- * Rewritten to support multiple host adapters.
- * Miscellaneous cleanup.
- * So far, still doesn't do reset or abort correctly, since I have no idea
- * how to do them with this board (8^(. Jan 1994 jb
- *
- * This driver now supports both of the two standard configurations (per
- * the 3.36 Owner's Manual, my latest reference) by the same method as
- * before; namely, by looking for a BIOS signature. Thus, the location of
- * the BIOS signature determines the board configuration. Until I have
- * time to do something more flexible, users should stick to one of the
- * following:
- *
- * Standard configuration for single-adapter systems:
- * - BIOS at CE00h
- * - I/O base address 350h
- * - IRQ level 15
- * - DMA channel 6
- * Standard configuration for a second adapter in a system:
- * - BIOS at C800h
- * - I/O base address 330h
- * - IRQ level 11
- * - DMA channel 5
- *
- * Anyone who can recompile the kernel is welcome to add others as need
- * arises, but unpredictable results may occur if there are conflicts.
- * In any event, if there are multiple adapters in a system, they MUST
- * use different I/O bases, IRQ levels, and DMA channels, since they will be
- * indistinguishable (and in direct conflict) otherwise.
- *
- * As a point of information, the NO_OP command toggles the CMD_RDY bit
- * of the status port, and this fact could be used as a test for the I/O
- * base address (or more generally, board detection). There is an interrupt
- * status port, so IRQ probing could also be done. I suppose the full
- * DMA diagnostic could be used to detect the DMA channel being used. I
- * haven't done any of this, though, because I think there's too much of
- * a chance that such explorations could be destructive, if some other
- * board's resources are used inadvertently. So, call me a wimp, but I
- * don't want to try it. The only kind of exploration I trust is memory
- * exploration, since it's more certain that reading memory won't be
- * destructive.
- *
- * More to my liking would be a LILO boot command line specification, such
- * as is used by the aha152x driver (and possibly others). I'll look into
- * it, as I have time...
- *
- * I get mail occasionally from people who either are using or are
- * considering using a WD7000 with Linux. There is a variety of
- * nomenclature describing WD7000's. To the best of my knowledge, the
- * following is a brief summary (from an old WD doc - I don't work for
- * them or anything like that):
- *
- * WD7000-FASST2: This is a WD7000 board with the real-mode SST ROM BIOS
- * installed. Last I heard, the BIOS was actually done by Columbia
- * Data Products. The BIOS is only used by this driver (and thus
- * by Linux) to identify the board; none of it can be executed under
- * Linux.
- *
- * WD7000-ASC: This is the original adapter board, with or without BIOS.
- * The board uses a WD33C93 or WD33C93A SBIC, which in turn is
- * controlled by an onboard Z80 processor. The board interface
- * visible to the host CPU is defined effectively by the Z80's
- * firmware, and it is this firmware's revision level that is
- * determined and reported by this driver. (The version of the
- * on-board BIOS is of no interest whatsoever.) The host CPU has
- * no access to the SBIC; hence the fact that it is a WD33C93 is
- * also of no interest to this driver.
- *
- * WD7000-AX:
- * WD7000-MX:
- * WD7000-EX: These are newer versions of the WD7000-ASC. The -ASC is
- * largely built from discrete components; these boards use more
- * integration. The -AX is an ISA bus board (like the -ASC),
- * the -MX is an MCA (i.e., PS/2) bus board), and the -EX is an
- * EISA bus board.
- *
- * At the time of my documentation, the -?X boards were "future" products,
- * and were not yet available. However, I vaguely recall that Thomas
- * Wuensche had an -AX, so I believe at least it is supported by this
- * driver. I have no personal knowledge of either -MX or -EX boards.
- *
- * P.S. Just recently, I've discovered (directly from WD and Future
- * Domain) that all but the WD7000-EX have been out of production for
- * two years now. FD has production rights to the 7000-EX, and are
- * producing it under a new name, and with a new BIOS. If anyone has
- * one of the FD boards, it would be nice to come up with a signature
- * for it.
- * J.B. Jan 1994.
- *
- *
- * Revisions by Miroslav Zagorac <zaga@fly.cc.fer.hr>
- *
- * 08/24/1996.
- *
- * Enhancement for wd7000_detect function has been made, so you don't have
- * to enter BIOS ROM address in initialisation data (see struct Config).
- * We cannot detect IRQ, DMA and I/O base address for now, so we have to
- * enter them as arguments while wd_7000 is detected. If someone has IRQ,
- * DMA or I/O base address set to some other value, he can enter them in
- * configuration without any problem. Also I wrote a function wd7000_setup,
- * so now you can enter WD-7000 definition as kernel arguments,
- * as in lilo.conf:
- *
- * append="wd7000=IRQ,DMA,IO"
- *
- * PS: If card BIOS ROM is disabled, function wd7000_detect now will recognize
- * adapter, unlike the old one. Anyway, BIOS ROM from WD7000 adapter is
- * useless for Linux. B^)
- *
- *
- * 09/06/1996.
- *
- * Autodetecting of I/O base address from wd7000_detect function is removed,
- * some little bugs removed, etc...
- *
- * Thanks to Roger Scott for driver debugging.
- *
- * 06/07/1997
- *
- * Added support for /proc file system (/proc/scsi/wd7000/[0...] files).
- * Now, driver can handle hard disks with capacity >1GB.
- *
- * 01/15/1998
- *
- * Added support for BUS_ON and BUS_OFF parameters in config line.
- * Miscellaneous cleanup.
- *
- * 03/01/1998
- *
- * WD7000 driver now work on kernels >= 2.1.x
- *
- *
- * 12/31/2001 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *
- * use host->host_lock, not io_request_lock, cleanups
- *
- * 2002/10/04 - Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Use dev_id for interrupts, kill __func__ pasting
- * Add a lock for the scb pool, clean up all other cli/sti usage stuff
- * Use the adapter lock for the other places we had the cli's
- *
- * 2002/10/06 - Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Switch to new style error handling
- * Clean up delay to udelay, and yielding sleeps
- * Make host reset actually reset the card
- * Make everything static
- *
- * 2003/02/12 - Christoph Hellwig <hch@infradead.org>
- *
- * Cleaned up host template definition
- * Removed now obsolete wd7000.h
- */
-
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/spinlock.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/stat.h>
-#include <linux/io.h>
-
-#include <asm/dma.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsicam.h>
-
-
-#undef WD7000_DEBUG /* general debug */
-#ifdef WD7000_DEBUG
-#define dprintk printk
-#else
-#define dprintk no_printk
-#endif
-
-/*
- * Mailbox structure sizes.
- * I prefer to keep the number of ICMBs much larger than the number of
- * OGMBs. OGMBs are used very quickly by the driver to start one or
- * more commands, while ICMBs are used by the host adapter per command.
- */
-#define OGMB_CNT 16
-#define ICMB_CNT 32
-
-/*
- * Scb's are shared by all active adapters. So, if they all become busy,
- * callers may be made to wait in alloc_scbs for them to free. That can
- * be avoided by setting MAX_SCBS to NUM_CONFIG * WD7000_Q. If you'd
- * rather conserve memory, use a smaller number (> 0, of course) - things
- * will should still work OK.
- */
-#define MAX_SCBS 32
-
-/*
- * In this version, sg_tablesize now defaults to WD7000_SG, and will
- * be set to SG_NONE for older boards. This is the reverse of the
- * previous default, and was changed so that the driver-level
- * scsi_host_template would reflect the driver's support for scatter/
- * gather.
- *
- * Also, it has been reported that boards at Revision 6 support scatter/
- * gather, so the new definition of an "older" board has been changed
- * accordingly.
- */
-#define WD7000_Q 16
-#define WD7000_SG 16
-
-
-/*
- * WD7000-specific mailbox structure
- *
- */
-typedef volatile struct mailbox {
- unchar status;
- unchar scbptr[3]; /* SCSI-style - MSB first (big endian) */
-} Mailbox;
-
-/*
- * This structure should contain all per-adapter global data. I.e., any
- * new global per-adapter data should put in here.
- */
-typedef struct adapter {
- struct Scsi_Host *sh; /* Pointer to Scsi_Host structure */
- int iobase; /* This adapter's I/O base address */
- int irq; /* This adapter's IRQ level */
- int dma; /* This adapter's DMA channel */
- int int_counter; /* This adapter's interrupt counter */
- int bus_on; /* This adapter's BUS_ON time */
- int bus_off; /* This adapter's BUS_OFF time */
- struct { /* This adapter's mailboxes */
- Mailbox ogmb[OGMB_CNT]; /* Outgoing mailboxes */
- Mailbox icmb[ICMB_CNT]; /* Incoming mailboxes */
- } mb;
- int next_ogmb; /* to reduce contention at mailboxes */
- unchar control; /* shadows CONTROL port value */
- unchar rev1, rev2; /* filled in by wd7000_revision */
-} Adapter;
-
-/*
- * (linear) base address for ROM BIOS
- */
-static const long wd7000_biosaddr[] = {
- 0xc0000, 0xc2000, 0xc4000, 0xc6000, 0xc8000, 0xca000, 0xcc000, 0xce000,
- 0xd0000, 0xd2000, 0xd4000, 0xd6000, 0xd8000, 0xda000, 0xdc000, 0xde000
-};
-#define NUM_ADDRS ARRAY_SIZE(wd7000_biosaddr)
-
-static const unsigned short wd7000_iobase[] = {
- 0x0300, 0x0308, 0x0310, 0x0318, 0x0320, 0x0328, 0x0330, 0x0338,
- 0x0340, 0x0348, 0x0350, 0x0358, 0x0360, 0x0368, 0x0370, 0x0378,
- 0x0380, 0x0388, 0x0390, 0x0398, 0x03a0, 0x03a8, 0x03b0, 0x03b8,
- 0x03c0, 0x03c8, 0x03d0, 0x03d8, 0x03e0, 0x03e8, 0x03f0, 0x03f8
-};
-#define NUM_IOPORTS ARRAY_SIZE(wd7000_iobase)
-
-static const short wd7000_irq[] = { 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 };
-#define NUM_IRQS ARRAY_SIZE(wd7000_irq)
-
-static const short wd7000_dma[] = { 5, 6, 7 };
-#define NUM_DMAS ARRAY_SIZE(wd7000_dma)
-
-/*
- * The following is set up by wd7000_detect, and used thereafter for
- * proc and other global ookups
- */
-
-#define UNITS 8
-static struct Scsi_Host *wd7000_host[UNITS];
-
-#define BUS_ON 64 /* x 125ns = 8000ns (BIOS default) */
-#define BUS_OFF 15 /* x 125ns = 1875ns (BIOS default) */
-
-/*
- * Standard Adapter Configurations - used by wd7000_detect
- */
-typedef struct {
- short irq; /* IRQ level */
- short dma; /* DMA channel */
- unsigned iobase; /* I/O base address */
- short bus_on; /* Time that WD7000 spends on the AT-bus when */
- /* transferring data. BIOS default is 8000ns. */
- short bus_off; /* Time that WD7000 spends OFF THE BUS after */
- /* while it is transferring data. */
- /* BIOS default is 1875ns */
-} Config;
-
-/*
- * Add here your configuration...
- */
-static Config configs[] = {
- {15, 6, 0x350, BUS_ON, BUS_OFF}, /* defaults for single adapter */
- {11, 5, 0x320, BUS_ON, BUS_OFF}, /* defaults for second adapter */
- {7, 6, 0x350, BUS_ON, BUS_OFF}, /* My configuration (Zaga) */
- {-1, -1, 0x0, BUS_ON, BUS_OFF} /* Empty slot */
-};
-#define NUM_CONFIGS ARRAY_SIZE(configs)
-
-/*
- * The following list defines strings to look for in the BIOS that identify
- * it as the WD7000-FASST2 SST BIOS. I suspect that something should be
- * added for the Future Domain version.
- */
-typedef struct signature {
- const char *sig; /* String to look for */
- unsigned long ofs; /* offset from BIOS base address */
- unsigned len; /* length of string */
-} Signature;
-
-static const Signature signatures[] = {
- {"SSTBIOS", 0x0000d, 7} /* "SSTBIOS" @ offset 0x0000d */
-};
-#define NUM_SIGNATURES ARRAY_SIZE(signatures)
-
-
-/*
- * I/O Port Offsets and Bit Definitions
- * 4 addresses are used. Those not defined here are reserved.
- */
-#define ASC_STAT 0 /* Status, Read */
-#define ASC_COMMAND 0 /* Command, Write */
-#define ASC_INTR_STAT 1 /* Interrupt Status, Read */
-#define ASC_INTR_ACK 1 /* Acknowledge, Write */
-#define ASC_CONTROL 2 /* Control, Write */
-
-/*
- * ASC Status Port
- */
-#define INT_IM 0x80 /* Interrupt Image Flag */
-#define CMD_RDY 0x40 /* Command Port Ready */
-#define CMD_REJ 0x20 /* Command Port Byte Rejected */
-#define ASC_INIT 0x10 /* ASC Initialized Flag */
-#define ASC_STATMASK 0xf0 /* The lower 4 Bytes are reserved */
-
-/*
- * COMMAND opcodes
- *
- * Unfortunately, I have no idea how to properly use some of these commands,
- * as the OEM manual does not make it clear. I have not been able to use
- * enable/disable unsolicited interrupts or the reset commands with any
- * discernible effect whatsoever. I think they may be related to certain
- * ICB commands, but again, the OEM manual doesn't make that clear.
- */
-#define NO_OP 0 /* NO-OP toggles CMD_RDY bit in ASC_STAT */
-#define INITIALIZATION 1 /* initialization (10 bytes) */
-#define DISABLE_UNS_INTR 2 /* disable unsolicited interrupts */
-#define ENABLE_UNS_INTR 3 /* enable unsolicited interrupts */
-#define INTR_ON_FREE_OGMB 4 /* interrupt on free OGMB */
-#define SOFT_RESET 5 /* SCSI bus soft reset */
-#define HARD_RESET_ACK 6 /* SCSI bus hard reset acknowledge */
-#define START_OGMB 0x80 /* start command in OGMB (n) */
-#define SCAN_OGMBS 0xc0 /* start multiple commands, signature (n) */
- /* where (n) = lower 6 bits */
-/*
- * For INITIALIZATION:
- */
-typedef struct initCmd {
- unchar op; /* command opcode (= 1) */
- unchar ID; /* Adapter's SCSI ID */
- unchar bus_on; /* Bus on time, x 125ns (see below) */
- unchar bus_off; /* Bus off time, "" "" */
- unchar rsvd; /* Reserved */
- unchar mailboxes[3]; /* Address of Mailboxes, MSB first */
- unchar ogmbs; /* Number of outgoing MBs, max 64, 0,1 = 1 */
- unchar icmbs; /* Number of incoming MBs, "" "" */
-} InitCmd;
-
-/*
- * Interrupt Status Port - also returns diagnostic codes at ASC reset
- *
- * if msb is zero, the lower bits are diagnostic status
- * Diagnostics:
- * 01 No diagnostic error occurred
- * 02 RAM failure
- * 03 FIFO R/W failed
- * 04 SBIC register read/write failed
- * 05 Initialization D-FF failed
- * 06 Host IRQ D-FF failed
- * 07 ROM checksum error
- * Interrupt status (bitwise):
- * 10NNNNNN outgoing mailbox NNNNNN is free
- * 11NNNNNN incoming mailbox NNNNNN needs service
- */
-#define MB_INTR 0xC0 /* Mailbox Service possible/required */
-#define IMB_INTR 0x40 /* 1 Incoming / 0 Outgoing */
-#define MB_MASK 0x3f /* mask for mailbox number */
-
-/*
- * CONTROL port bits
- */
-#define INT_EN 0x08 /* Interrupt Enable */
-#define DMA_EN 0x04 /* DMA Enable */
-#define SCSI_RES 0x02 /* SCSI Reset */
-#define ASC_RES 0x01 /* ASC Reset */
-
-/*
- * Driver data structures:
- * - mb and scbs are required for interfacing with the host adapter.
- * An SCB has extra fields not visible to the adapter; mb's
- * _cannot_ do this, since the adapter assumes they are contiguous in
- * memory, 4 bytes each, with ICMBs following OGMBs, and uses this fact
- * to access them.
- * - An icb is for host-only (non-SCSI) commands. ICBs are 16 bytes each;
- * the additional bytes are used only by the driver.
- * - For now, a pool of SCBs are kept in global storage by this driver,
- * and are allocated and freed as needed.
- *
- * The 7000-FASST2 marks OGMBs empty as soon as it has _started_ a command,
- * not when it has finished. Since the SCB must be around for completion,
- * problems arise when SCBs correspond to OGMBs, which may be reallocated
- * earlier (or delayed unnecessarily until a command completes).
- * Mailboxes are used as transient data structures, simply for
- * carrying SCB addresses to/from the 7000-FASST2.
- *
- * Note also since SCBs are not "permanently" associated with mailboxes,
- * there is no need to keep a global list of scsi_cmnd pointers indexed
- * by OGMB. Again, SCBs reference their scsi_cmnds directly, so mailbox
- * indices need not be involved.
- */
-
-/*
- * WD7000-specific scatter/gather element structure
- */
-typedef struct sgb {
- unchar len[3];
- unchar ptr[3]; /* Also SCSI-style - MSB first */
-} Sgb;
-
-typedef struct scb { /* Command Control Block 5.4.1 */
- unchar op; /* Command Control Block Operation Code */
- unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */
- /* Outbound data transfer, length is checked */
- /* Inbound data transfer, length is checked */
- /* Logical Unit Number */
- unchar cdb[12]; /* SCSI Command Block */
- volatile unchar status; /* SCSI Return Status */
- volatile unchar vue; /* Vendor Unique Error Code */
- unchar maxlen[3]; /* Maximum Data Transfer Length */
- unchar dataptr[3]; /* SCSI Data Block Pointer */
- unchar linkptr[3]; /* Next Command Link Pointer */
- unchar direc; /* Transfer Direction */
- unchar reserved2[6]; /* SCSI Command Descriptor Block */
- /* end of hardware SCB */
- struct scsi_cmnd *SCpnt;/* scsi_cmnd using this SCB */
- Sgb sgb[WD7000_SG]; /* Scatter/gather list for this SCB */
- Adapter *host; /* host adapter */
- struct scb *next; /* for lists of scbs */
-} Scb;
-
-/*
- * This driver is written to allow host-only commands to be executed.
- * These use a 16-byte block called an ICB. The format is extended by the
- * driver to 18 bytes, to support the status returned in the ICMB and
- * an execution phase code.
- *
- * There are other formats besides these; these are the ones I've tried
- * to use. Formats for some of the defined ICB opcodes are not defined
- * (notably, get/set unsolicited interrupt status) in my copy of the OEM
- * manual, and others are ambiguous/hard to follow.
- */
-#define ICB_OP_MASK 0x80 /* distinguishes scbs from icbs */
-#define ICB_OP_OPEN_RBUF 0x80 /* open receive buffer */
-#define ICB_OP_RECV_CMD 0x81 /* receive command from initiator */
-#define ICB_OP_RECV_DATA 0x82 /* receive data from initiator */
-#define ICB_OP_RECV_SDATA 0x83 /* receive data with status from init. */
-#define ICB_OP_SEND_DATA 0x84 /* send data with status to initiator */
-#define ICB_OP_SEND_STAT 0x86 /* send command status to initiator */
- /* 0x87 is reserved */
-#define ICB_OP_READ_INIT 0x88 /* read initialization bytes */
-#define ICB_OP_READ_ID 0x89 /* read adapter's SCSI ID */
-#define ICB_OP_SET_UMASK 0x8A /* set unsolicited interrupt mask */
-#define ICB_OP_GET_UMASK 0x8B /* read unsolicited interrupt mask */
-#define ICB_OP_GET_REVISION 0x8C /* read firmware revision level */
-#define ICB_OP_DIAGNOSTICS 0x8D /* execute diagnostics */
-#define ICB_OP_SET_EPARMS 0x8E /* set execution parameters */
-#define ICB_OP_GET_EPARMS 0x8F /* read execution parameters */
-
-typedef struct icbRecvCmd {
- unchar op;
- unchar IDlun; /* Initiator SCSI ID/lun */
- unchar len[3]; /* command buffer length */
- unchar ptr[3]; /* command buffer address */
- unchar rsvd[7]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbRecvCmd;
-
-typedef struct icbSendStat {
- unchar op;
- unchar IDlun; /* Target SCSI ID/lun */
- unchar stat; /* (outgoing) completion status byte 1 */
- unchar rsvd[12]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbSendStat;
-
-typedef struct icbRevLvl {
- unchar op;
- volatile unchar primary; /* primary revision level (returned) */
- volatile unchar secondary; /* secondary revision level (returned) */
- unchar rsvd[12]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbRevLvl;
-
-typedef struct icbUnsMask { /* I'm totally guessing here */
- unchar op;
- volatile unchar mask[14]; /* mask bits */
-#if 0
- unchar rsvd[12]; /* reserved */
-#endif
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbUnsMask;
-
-typedef struct icbDiag {
- unchar op;
- unchar type; /* diagnostics type code (0-3) */
- unchar len[3]; /* buffer length */
- unchar ptr[3]; /* buffer address */
- unchar rsvd[7]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbDiag;
-
-#define ICB_DIAG_POWERUP 0 /* Power-up diags only */
-#define ICB_DIAG_WALKING 1 /* walking 1's pattern */
-#define ICB_DIAG_DMA 2 /* DMA - system memory diags */
-#define ICB_DIAG_FULL 3 /* do both 1 & 2 */
-
-typedef struct icbParms {
- unchar op;
- unchar rsvd1; /* reserved */
- unchar len[3]; /* parms buffer length */
- unchar ptr[3]; /* parms buffer address */
- unchar idx[2]; /* index (MSB-LSB) */
- unchar rsvd2[5]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbParms;
-
-typedef struct icbAny {
- unchar op;
- unchar data[14]; /* format-specific data */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbAny;
-
-typedef union icb {
- unchar op; /* ICB opcode */
- IcbRecvCmd recv_cmd; /* format for receive command */
- IcbSendStat send_stat; /* format for send status */
- IcbRevLvl rev_lvl; /* format for get revision level */
- IcbDiag diag; /* format for execute diagnostics */
- IcbParms eparms; /* format for get/set exec parms */
- IcbAny icb; /* generic format */
- unchar data[18];
-} Icb;
-
-#ifdef MODULE
-static char *wd7000;
-module_param(wd7000, charp, 0);
-#endif
-
-/*
- * Driver SCB structure pool.
- *
- * The SCBs declared here are shared by all host adapters; hence, this
- * structure is not part of the Adapter structure.
- */
-static Scb scbs[MAX_SCBS];
-static Scb *scbfree; /* free list */
-static int freescbs = MAX_SCBS; /* free list counter */
-static spinlock_t scbpool_lock; /* guards the scb free list and count */
-
-/*
- * END of data/declarations - code follows.
- */
-static void __init setup_error(char *mesg, int *ints)
-{
- if (ints[0] == 3)
- printk(KERN_ERR "wd7000_setup: \"wd7000=%d,%d,0x%x\" -> %s\n", ints[1], ints[2], ints[3], mesg);
- else if (ints[0] == 4)
- printk(KERN_ERR "wd7000_setup: \"wd7000=%d,%d,0x%x,%d\" -> %s\n", ints[1], ints[2], ints[3], ints[4], mesg);
- else
- printk(KERN_ERR "wd7000_setup: \"wd7000=%d,%d,0x%x,%d,%d\" -> %s\n", ints[1], ints[2], ints[3], ints[4], ints[5], mesg);
-}
-
-
-/*
- * Note: You can now set these options from the kernel's "command line".
- * The syntax is:
- *
- * wd7000=<IRQ>,<DMA>,<IO>[,<BUS_ON>[,<BUS_OFF>]]
- *
- * , where BUS_ON and BUS_OFF are in nanoseconds. BIOS default values
- * are 8000ns for BUS_ON and 1875ns for BUS_OFF.
- * eg:
- * wd7000=7,6,0x350
- *
- * will configure the driver for a WD-7000 controller
- * using IRQ 15 with a DMA channel 6, at IO base address 0x350.
- */
-static int __init wd7000_setup(char *str)
-{
- static short wd7000_card_num; /* .bss will zero this */
- short i;
- int ints[6];
-
- (void) get_options(str, ARRAY_SIZE(ints), ints);
-
- if (wd7000_card_num >= NUM_CONFIGS) {
- printk(KERN_ERR "%s: Too many \"wd7000=\" configurations in " "command line!\n", __func__);
- return 0;
- }
-
- if ((ints[0] < 3) || (ints[0] > 5)) {
- printk(KERN_ERR "%s: Error in command line! " "Usage: wd7000=<IRQ>,<DMA>,IO>[,<BUS_ON>" "[,<BUS_OFF>]]\n", __func__);
- } else {
- for (i = 0; i < NUM_IRQS; i++)
- if (ints[1] == wd7000_irq[i])
- break;
-
- if (i == NUM_IRQS) {
- setup_error("invalid IRQ.", ints);
- return 0;
- } else
- configs[wd7000_card_num].irq = ints[1];
-
- for (i = 0; i < NUM_DMAS; i++)
- if (ints[2] == wd7000_dma[i])
- break;
-
- if (i == NUM_DMAS) {
- setup_error("invalid DMA channel.", ints);
- return 0;
- } else
- configs[wd7000_card_num].dma = ints[2];
-
- for (i = 0; i < NUM_IOPORTS; i++)
- if (ints[3] == wd7000_iobase[i])
- break;
-
- if (i == NUM_IOPORTS) {
- setup_error("invalid I/O base address.", ints);
- return 0;
- } else
- configs[wd7000_card_num].iobase = ints[3];
-
- if (ints[0] > 3) {
- if ((ints[4] < 500) || (ints[4] > 31875)) {
- setup_error("BUS_ON value is out of range (500" " to 31875 nanoseconds)!", ints);
- configs[wd7000_card_num].bus_on = BUS_ON;
- } else
- configs[wd7000_card_num].bus_on = ints[4] / 125;
- } else
- configs[wd7000_card_num].bus_on = BUS_ON;
-
- if (ints[0] > 4) {
- if ((ints[5] < 500) || (ints[5] > 31875)) {
- setup_error("BUS_OFF value is out of range (500" " to 31875 nanoseconds)!", ints);
- configs[wd7000_card_num].bus_off = BUS_OFF;
- } else
- configs[wd7000_card_num].bus_off = ints[5] / 125;
- } else
- configs[wd7000_card_num].bus_off = BUS_OFF;
-
- if (wd7000_card_num) {
- for (i = 0; i < (wd7000_card_num - 1); i++) {
- int j = i + 1;
-
- for (; j < wd7000_card_num; j++)
- if (configs[i].irq == configs[j].irq) {
- setup_error("duplicated IRQ!", ints);
- return 0;
- }
- if (configs[i].dma == configs[j].dma) {
- setup_error("duplicated DMA " "channel!", ints);
- return 0;
- }
- if (configs[i].iobase == configs[j].iobase) {
- setup_error("duplicated I/O " "base address!", ints);
- return 0;
- }
- }
- }
-
- dprintk(KERN_DEBUG "wd7000_setup: IRQ=%d, DMA=%d, I/O=0x%x, "
- "BUS_ON=%dns, BUS_OFF=%dns\n", configs[wd7000_card_num].irq, configs[wd7000_card_num].dma, configs[wd7000_card_num].iobase, configs[wd7000_card_num].bus_on * 125, configs[wd7000_card_num].bus_off * 125);
-
- wd7000_card_num++;
- }
- return 1;
-}
-
-__setup("wd7000=", wd7000_setup);
-
-static inline void any2scsi(unchar * scsi, int any)
-{
- *scsi++ = (unsigned)any >> 16;
- *scsi++ = (unsigned)any >> 8;
- *scsi++ = any;
-}
-
-static inline int scsi2int(unchar * scsi)
-{
- return (scsi[0] << 16) | (scsi[1] << 8) | scsi[2];
-}
-
-static inline void wd7000_enable_intr(Adapter * host)
-{
- host->control |= INT_EN;
- outb(host->control, host->iobase + ASC_CONTROL);
-}
-
-
-static inline void wd7000_enable_dma(Adapter * host)
-{
- unsigned long flags;
- host->control |= DMA_EN;
- outb(host->control, host->iobase + ASC_CONTROL);
-
- flags = claim_dma_lock();
- set_dma_mode(host->dma, DMA_MODE_CASCADE);
- enable_dma(host->dma);
- release_dma_lock(flags);
-
-}
-
-
-#define WAITnexttimeout 200 /* 2 seconds */
-
-static inline short WAIT(unsigned port, unsigned mask, unsigned allof, unsigned noneof)
-{
- unsigned WAITbits;
- unsigned long WAITtimeout = jiffies + WAITnexttimeout;
-
- while (time_before_eq(jiffies, WAITtimeout)) {
- WAITbits = inb(port) & mask;
-
- if (((WAITbits & allof) == allof) && ((WAITbits & noneof) == 0))
- return (0);
- }
-
- return (1);
-}
-
-
-static inline int command_out(Adapter * host, unchar * cmd, int len)
-{
- if (!WAIT(host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) {
- while (len--) {
- do {
- outb(*cmd, host->iobase + ASC_COMMAND);
- WAIT(host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0);
- } while (inb(host->iobase + ASC_STAT) & CMD_REJ);
-
- cmd++;
- }
-
- return (1);
- }
-
- printk(KERN_WARNING "wd7000 command_out: WAIT failed(%d)\n", len + 1);
-
- return (0);
-}
-
-
-/*
- * This version of alloc_scbs is in preparation for supporting multiple
- * commands per lun and command chaining, by queueing pending commands.
- * We will need to allocate Scbs in blocks since they will wait to be
- * executed so there is the possibility of deadlock otherwise.
- * Also, to keep larger requests from being starved by smaller requests,
- * we limit access to this routine with an internal busy flag, so that
- * the satisfiability of a request is not dependent on the size of the
- * request.
- */
-static inline Scb *alloc_scbs(struct Scsi_Host *host, int needed)
-{
- Scb *scb, *p = NULL;
- unsigned long flags;
- unsigned long timeout = jiffies + WAITnexttimeout;
- unsigned long now;
- int i;
-
- if (needed <= 0)
- return (NULL); /* sanity check */
-
- spin_unlock_irq(host->host_lock);
-
- retry:
- while (freescbs < needed) {
- timeout = jiffies + WAITnexttimeout;
- do {
- /* FIXME: can we actually just yield here ?? */
- for (now = jiffies; now == jiffies;)
- cpu_relax(); /* wait a jiffy */
- } while (freescbs < needed && time_before_eq(jiffies, timeout));
- /*
- * If we get here with enough free Scbs, we can take them.
- * Otherwise, we timed out and didn't get enough.
- */
- if (freescbs < needed) {
- printk(KERN_ERR "wd7000: can't get enough free SCBs.\n");
- return (NULL);
- }
- }
-
- /* Take the lock, then check we didn't get beaten, if so try again */
- spin_lock_irqsave(&scbpool_lock, flags);
- if (freescbs < needed) {
- spin_unlock_irqrestore(&scbpool_lock, flags);
- goto retry;
- }
-
- scb = scbfree;
- freescbs -= needed;
- for (i = 0; i < needed; i++) {
- p = scbfree;
- scbfree = p->next;
- }
- p->next = NULL;
-
- spin_unlock_irqrestore(&scbpool_lock, flags);
-
- spin_lock_irq(host->host_lock);
- return (scb);
-}
-
-
-static inline void free_scb(Scb * scb)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&scbpool_lock, flags);
-
- memset(scb, 0, sizeof(Scb));
- scb->next = scbfree;
- scbfree = scb;
- freescbs++;
-
- spin_unlock_irqrestore(&scbpool_lock, flags);
-}
-
-
-static inline void init_scbs(void)
-{
- int i;
-
- spin_lock_init(&scbpool_lock);
-
- /* This is only ever called before the SCB pool is active */
-
- scbfree = &(scbs[0]);
- memset(scbs, 0, sizeof(scbs));
- for (i = 0; i < MAX_SCBS - 1; i++) {
- scbs[i].next = &(scbs[i + 1]);
- scbs[i].SCpnt = NULL;
- }
- scbs[MAX_SCBS - 1].next = NULL;
- scbs[MAX_SCBS - 1].SCpnt = NULL;
-}
-
-
-static int mail_out(Adapter * host, Scb * scbptr)
-/*
- * Note: this can also be used for ICBs; just cast to the parm type.
- */
-{
- int i, ogmb;
- unsigned long flags;
- unchar start_ogmb;
- Mailbox *ogmbs = host->mb.ogmb;
- int *next_ogmb = &(host->next_ogmb);
-
- dprintk("wd7000_mail_out: 0x%06lx", (long) scbptr);
-
- /* We first look for a free outgoing mailbox */
- spin_lock_irqsave(host->sh->host_lock, flags);
- ogmb = *next_ogmb;
- for (i = 0; i < OGMB_CNT; i++) {
- if (ogmbs[ogmb].status == 0) {
- dprintk(" using OGMB 0x%x", ogmb);
- ogmbs[ogmb].status = 1;
- any2scsi((unchar *) ogmbs[ogmb].scbptr, (int) scbptr);
-
- *next_ogmb = (ogmb + 1) % OGMB_CNT;
- break;
- } else
- ogmb = (ogmb + 1) % OGMB_CNT;
- }
- spin_unlock_irqrestore(host->sh->host_lock, flags);
-
- dprintk(", scb is 0x%06lx", (long) scbptr);
-
- if (i >= OGMB_CNT) {
- /*
- * Alternatively, we might issue the "interrupt on free OGMB",
- * and sleep, but it must be ensured that it isn't the init
- * task running. Instead, this version assumes that the caller
- * will be persistent, and try again. Since it's the adapter
- * that marks OGMB's free, waiting even with interrupts off
- * should work, since they are freed very quickly in most cases.
- */
- dprintk(", no free OGMBs.\n");
- return (0);
- }
-
- wd7000_enable_intr(host);
-
- start_ogmb = START_OGMB | ogmb;
- command_out(host, &start_ogmb, 1);
-
- dprintk(", awaiting interrupt.\n");
-
- return (1);
-}
-
-
-static int make_code(unsigned hosterr, unsigned scsierr)
-{
-#ifdef WD7000_DEBUG
- int in_error = hosterr;
-#endif
-
- switch ((hosterr >> 8) & 0xff) {
- case 0: /* Reserved */
- hosterr = DID_ERROR;
- break;
- case 1: /* Command Complete, no errors */
- hosterr = DID_OK;
- break;
- case 2: /* Command complete, error logged in scb status (scsierr) */
- hosterr = DID_OK;
- break;
- case 4: /* Command failed to complete - timeout */
- hosterr = DID_TIME_OUT;
- break;
- case 5: /* Command terminated; Bus reset by external device */
- hosterr = DID_RESET;
- break;
- case 6: /* Unexpected Command Received w/ host as target */
- hosterr = DID_BAD_TARGET;
- break;
- case 80: /* Unexpected Reselection */
- case 81: /* Unexpected Selection */
- hosterr = DID_BAD_INTR;
- break;
- case 82: /* Abort Command Message */
- hosterr = DID_ABORT;
- break;
- case 83: /* SCSI Bus Software Reset */
- case 84: /* SCSI Bus Hardware Reset */
- hosterr = DID_RESET;
- break;
- default: /* Reserved */
- hosterr = DID_ERROR;
- }
-#ifdef WD7000_DEBUG
- if (scsierr || hosterr)
- dprintk("\nSCSI command error: SCSI 0x%02x host 0x%04x return %d\n", scsierr, in_error, hosterr);
-#endif
- return (scsierr | (hosterr << 16));
-}
-
-#define wd7000_intr_ack(host) outb (0, host->iobase + ASC_INTR_ACK)
-
-
-static irqreturn_t wd7000_intr(int irq, void *dev_id)
-{
- Adapter *host = (Adapter *) dev_id;
- int flag, icmb, errstatus, icmb_status;
- int host_error, scsi_error;
- Scb *scb; /* for SCSI commands */
- IcbAny *icb; /* for host commands */
- struct scsi_cmnd *SCpnt;
- Mailbox *icmbs = host->mb.icmb;
- unsigned long flags;
-
- spin_lock_irqsave(host->sh->host_lock, flags);
- host->int_counter++;
-
- dprintk("wd7000_intr: irq = %d, host = 0x%06lx\n", irq, (long) host);
-
- flag = inb(host->iobase + ASC_INTR_STAT);
-
- dprintk("wd7000_intr: intr stat = 0x%02x\n", flag);
-
- if (!(inb(host->iobase + ASC_STAT) & INT_IM)) {
- /* NB: these are _very_ possible if IRQ 15 is being used, since
- * it's the "garbage collector" on the 2nd 8259 PIC. Specifically,
- * any interrupt signal into the 8259 which can't be identified
- * comes out as 7 from the 8259, which is 15 to the host. Thus, it
- * is a good thing the WD7000 has an interrupt status port, so we
- * can sort these out. Otherwise, electrical noise and other such
- * problems would be indistinguishable from valid interrupts...
- */
- dprintk("wd7000_intr: phantom interrupt...\n");
- goto ack;
- }
-
- if (!(flag & MB_INTR))
- goto ack;
-
- /* The interrupt is for a mailbox */
- if (!(flag & IMB_INTR)) {
- dprintk("wd7000_intr: free outgoing mailbox\n");
- /*
- * If sleep_on() and the "interrupt on free OGMB" command are
- * used in mail_out(), wake_up() should correspondingly be called
- * here. For now, we don't need to do anything special.
- */
- goto ack;
- }
-
- /* The interrupt is for an incoming mailbox */
- icmb = flag & MB_MASK;
- icmb_status = icmbs[icmb].status;
- if (icmb_status & 0x80) { /* unsolicited - result in ICMB */
- dprintk("wd7000_intr: unsolicited interrupt 0x%02x\n", icmb_status);
- goto ack;
- }
-
- /* Aaaargh! (Zaga) */
- scb = isa_bus_to_virt(scsi2int((unchar *) icmbs[icmb].scbptr));
- icmbs[icmb].status = 0;
- if (scb->op & ICB_OP_MASK) { /* an SCB is done */
- icb = (IcbAny *) scb;
- icb->status = icmb_status;
- icb->phase = 0;
- goto ack;
- }
-
- SCpnt = scb->SCpnt;
- if (--(SCpnt->SCp.phase) <= 0) { /* all scbs are done */
- host_error = scb->vue | (icmb_status << 8);
- scsi_error = scb->status;
- errstatus = make_code(host_error, scsi_error);
- SCpnt->result = errstatus;
-
- free_scb(scb);
-
- SCpnt->scsi_done(SCpnt);
- }
-
- ack:
- dprintk("wd7000_intr: return from interrupt handler\n");
- wd7000_intr_ack(host);
-
- spin_unlock_irqrestore(host->sh->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-static int wd7000_queuecommand_lck(struct scsi_cmnd *SCpnt,
- void (*done)(struct scsi_cmnd *))
-{
- Scb *scb;
- Sgb *sgb;
- unchar *cdb = (unchar *) SCpnt->cmnd;
- unchar idlun;
- short cdblen;
- int nseg;
- Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
-
- cdblen = SCpnt->cmd_len;
- idlun = ((SCpnt->device->id << 5) & 0xe0) | (SCpnt->device->lun & 7);
- SCpnt->scsi_done = done;
- SCpnt->SCp.phase = 1;
- scb = alloc_scbs(SCpnt->device->host, 1);
- scb->idlun = idlun;
- memcpy(scb->cdb, cdb, cdblen);
- scb->direc = 0x40; /* Disable direction check */
-
- scb->SCpnt = SCpnt; /* so we can find stuff later */
- SCpnt->host_scribble = (unchar *) scb;
- scb->host = host;
-
- nseg = scsi_sg_count(SCpnt);
- if (nseg > 1) {
- struct scatterlist *sg;
- unsigned i;
-
- dprintk("Using scatter/gather with %d elements.\n", nseg);
-
- sgb = scb->sgb;
- scb->op = 1;
- any2scsi(scb->dataptr, (int) sgb);
- any2scsi(scb->maxlen, nseg * sizeof(Sgb));
-
- scsi_for_each_sg(SCpnt, sg, nseg, i) {
- any2scsi(sgb[i].ptr, isa_page_to_bus(sg_page(sg)) + sg->offset);
- any2scsi(sgb[i].len, sg->length);
- }
- } else {
- scb->op = 0;
- if (nseg) {
- struct scatterlist *sg = scsi_sglist(SCpnt);
- any2scsi(scb->dataptr, isa_page_to_bus(sg_page(sg)) + sg->offset);
- }
- any2scsi(scb->maxlen, scsi_bufflen(SCpnt));
- }
-
- /* FIXME: drop lock and yield here ? */
-
- while (!mail_out(host, scb))
- cpu_relax(); /* keep trying */
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(wd7000_queuecommand)
-
-static int wd7000_diagnostics(Adapter * host, int code)
-{
- static IcbDiag icb = { ICB_OP_DIAGNOSTICS };
- static unchar buf[256];
- unsigned long timeout;
-
- icb.type = code;
- any2scsi(icb.len, sizeof(buf));
- any2scsi(icb.ptr, (int) &buf);
- icb.phase = 1;
- /*
- * This routine is only called at init, so there should be OGMBs
- * available. I'm assuming so here. If this is going to
- * fail, I can just let the timeout catch the failure.
- */
- mail_out(host, (struct scb *) &icb);
- timeout = jiffies + WAITnexttimeout; /* wait up to 2 seconds */
- while (icb.phase && time_before(jiffies, timeout)) {
- cpu_relax(); /* wait for completion */
- barrier();
- }
-
- if (icb.phase) {
- printk("wd7000_diagnostics: timed out.\n");
- return (0);
- }
- if (make_code(icb.vue | (icb.status << 8), 0)) {
- printk("wd7000_diagnostics: failed (0x%02x,0x%02x)\n", icb.vue, icb.status);
- return (0);
- }
-
- return (1);
-}
-
-
-static int wd7000_adapter_reset(Adapter * host)
-{
- InitCmd init_cmd = {
- INITIALIZATION,
- 7,
- host->bus_on,
- host->bus_off,
- 0,
- {0, 0, 0},
- OGMB_CNT,
- ICMB_CNT
- };
- int diag;
- /*
- * Reset the adapter - only. The SCSI bus was initialized at power-up,
- * and we need to do this just so we control the mailboxes, etc.
- */
- outb(ASC_RES, host->iobase + ASC_CONTROL);
- udelay(40); /* reset pulse: this is 40us, only need 25us */
- outb(0, host->iobase + ASC_CONTROL);
- host->control = 0; /* this must always shadow ASC_CONTROL */
-
- if (WAIT(host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) {
- printk(KERN_ERR "wd7000_init: WAIT timed out.\n");
- return -1; /* -1 = not ok */
- }
-
- if ((diag = inb(host->iobase + ASC_INTR_STAT)) != 1) {
- printk("wd7000_init: ");
-
- switch (diag) {
- case 2:
- printk(KERN_ERR "RAM failure.\n");
- break;
- case 3:
- printk(KERN_ERR "FIFO R/W failed\n");
- break;
- case 4:
- printk(KERN_ERR "SBIC register R/W failed\n");
- break;
- case 5:
- printk(KERN_ERR "Initialization D-FF failed.\n");
- break;
- case 6:
- printk(KERN_ERR "Host IRQ D-FF failed.\n");
- break;
- case 7:
- printk(KERN_ERR "ROM checksum error.\n");
- break;
- default:
- printk(KERN_ERR "diagnostic code 0x%02Xh received.\n", diag);
- }
- return -1;
- }
- /* Clear mailboxes */
- memset(&(host->mb), 0, sizeof(host->mb));
-
- /* Execute init command */
- any2scsi((unchar *) & (init_cmd.mailboxes), (int) &(host->mb));
- if (!command_out(host, (unchar *) & init_cmd, sizeof(init_cmd))) {
- printk(KERN_ERR "wd7000_adapter_reset: adapter initialization failed.\n");
- return -1;
- }
-
- if (WAIT(host->iobase + ASC_STAT, ASC_STATMASK, ASC_INIT, 0)) {
- printk("wd7000_adapter_reset: WAIT timed out.\n");
- return -1;
- }
- return 0;
-}
-
-static int wd7000_init(Adapter * host)
-{
- if (wd7000_adapter_reset(host) == -1)
- return 0;
-
-
- if (request_irq(host->irq, wd7000_intr, 0, "wd7000", host)) {
- printk("wd7000_init: can't get IRQ %d.\n", host->irq);
- return (0);
- }
- if (request_dma(host->dma, "wd7000")) {
- printk("wd7000_init: can't get DMA channel %d.\n", host->dma);
- free_irq(host->irq, host);
- return (0);
- }
- wd7000_enable_dma(host);
- wd7000_enable_intr(host);
-
- if (!wd7000_diagnostics(host, ICB_DIAG_FULL)) {
- free_dma(host->dma);
- free_irq(host->irq, NULL);
- return (0);
- }
-
- return (1);
-}
-
-
-static void wd7000_revision(Adapter * host)
-{
- static IcbRevLvl icb = { ICB_OP_GET_REVISION };
-
- icb.phase = 1;
- /*
- * Like diagnostics, this is only done at init time, in fact, from
- * wd7000_detect, so there should be OGMBs available. If it fails,
- * the only damage will be that the revision will show up as 0.0,
- * which in turn means that scatter/gather will be disabled.
- */
- mail_out(host, (struct scb *) &icb);
- while (icb.phase) {
- cpu_relax(); /* wait for completion */
- barrier();
- }
- host->rev1 = icb.primary;
- host->rev2 = icb.secondary;
-}
-
-
-static int wd7000_set_info(struct Scsi_Host *host, char *buffer, int length)
-{
- dprintk("Buffer = <%.*s>, length = %d\n", length, buffer, length);
-
- /*
- * Currently this is a no-op
- */
- dprintk("Sorry, this function is currently out of order...\n");
- return (length);
-}
-
-
-static int wd7000_show_info(struct seq_file *m, struct Scsi_Host *host)
-{
- Adapter *adapter = (Adapter *)host->hostdata;
- unsigned long flags;
-#ifdef WD7000_DEBUG
- Mailbox *ogmbs, *icmbs;
- short count;
-#endif
-
- spin_lock_irqsave(host->host_lock, flags);
- seq_printf(m, "Host scsi%d: Western Digital WD-7000 (rev %d.%d)\n", host->host_no, adapter->rev1, adapter->rev2);
- seq_printf(m, " IO base: 0x%x\n", adapter->iobase);
- seq_printf(m, " IRQ: %d\n", adapter->irq);
- seq_printf(m, " DMA channel: %d\n", adapter->dma);
- seq_printf(m, " Interrupts: %d\n", adapter->int_counter);
- seq_printf(m, " BUS_ON time: %d nanoseconds\n", adapter->bus_on * 125);
- seq_printf(m, " BUS_OFF time: %d nanoseconds\n", adapter->bus_off * 125);
-
-#ifdef WD7000_DEBUG
- ogmbs = adapter->mb.ogmb;
- icmbs = adapter->mb.icmb;
-
- seq_printf(m, "\nControl port value: 0x%x\n", adapter->control);
- seq_puts(m, "Incoming mailbox:\n");
- seq_printf(m, " size: %d\n", ICMB_CNT);
- seq_puts(m, " queued messages: ");
-
- for (i = count = 0; i < ICMB_CNT; i++)
- if (icmbs[i].status) {
- count++;
- seq_printf(m, "0x%x ", i);
- }
-
- seq_puts(m, count ? "\n" : "none\n");
-
- seq_puts(m, "Outgoing mailbox:\n");
- seq_printf(m, " size: %d\n", OGMB_CNT);
- seq_printf(m, " next message: 0x%x\n", adapter->next_ogmb);
- seq_puts(m, " queued messages: ");
-
- for (i = count = 0; i < OGMB_CNT; i++)
- if (ogmbs[i].status) {
- count++;
- seq_printf(m, "0x%x ", i);
- }
-
- seq_puts(m, count ? "\n" : "none\n");
-#endif
-
- spin_unlock_irqrestore(host->host_lock, flags);
-
- return 0;
-}
-
-
-/*
- * Returns the number of adapters this driver is supporting.
- *
- * The source for hosts.c says to wait to call scsi_register until 100%
- * sure about an adapter. We need to do it a little sooner here; we
- * need the storage set up by scsi_register before wd7000_init, and
- * changing the location of an Adapter structure is more trouble than
- * calling scsi_unregister.
- *
- */
-
-static __init int wd7000_detect(struct scsi_host_template *tpnt)
-{
- short present = 0, biosaddr_ptr, sig_ptr, i, pass;
- short biosptr[NUM_CONFIGS];
- unsigned iobase;
- Adapter *host = NULL;
- struct Scsi_Host *sh;
- int unit = 0;
-
- dprintk("wd7000_detect: started\n");
-
-#ifdef MODULE
- if (wd7000)
- wd7000_setup(wd7000);
-#endif
-
- for (i = 0; i < UNITS; wd7000_host[i++] = NULL);
- for (i = 0; i < NUM_CONFIGS; biosptr[i++] = -1);
-
- tpnt->proc_name = "wd7000";
- tpnt->show_info = &wd7000_show_info;
- tpnt->write_info = wd7000_set_info;
-
- /*
- * Set up SCB free list, which is shared by all adapters
- */
- init_scbs();
-
- for (pass = 0; pass < NUM_CONFIGS; pass++) {
- /*
- * First, search for BIOS SIGNATURE...
- */
- for (biosaddr_ptr = 0; biosaddr_ptr < NUM_ADDRS; biosaddr_ptr++)
- for (sig_ptr = 0; sig_ptr < NUM_SIGNATURES; sig_ptr++) {
- for (i = 0; i < pass; i++)
- if (biosptr[i] == biosaddr_ptr)
- break;
-
- if (i == pass) {
- void __iomem *biosaddr = ioremap(wd7000_biosaddr[biosaddr_ptr] + signatures[sig_ptr].ofs,
- signatures[sig_ptr].len);
- short bios_match = 1;
-
- if (biosaddr)
- bios_match = check_signature(biosaddr, signatures[sig_ptr].sig, signatures[sig_ptr].len);
-
- iounmap(biosaddr);
-
- if (bios_match)
- goto bios_matched;
- }
- }
-
- bios_matched:
- /*
- * BIOS SIGNATURE has been found.
- */
-#ifdef WD7000_DEBUG
- dprintk("wd7000_detect: pass %d\n", pass + 1);
-
- if (biosaddr_ptr == NUM_ADDRS)
- dprintk("WD-7000 SST BIOS not detected...\n");
- else
- dprintk("WD-7000 SST BIOS detected at 0x%lx: checking...\n", wd7000_biosaddr[biosaddr_ptr]);
-#endif
-
- if (configs[pass].irq < 0)
- continue;
-
- if (unit == UNITS)
- continue;
-
- iobase = configs[pass].iobase;
-
- dprintk("wd7000_detect: check IO 0x%x region...\n", iobase);
-
- if (request_region(iobase, 4, "wd7000")) {
-
- dprintk("wd7000_detect: ASC reset (IO 0x%x) ...", iobase);
- /*
- * ASC reset...
- */
- outb(ASC_RES, iobase + ASC_CONTROL);
- msleep(10);
- outb(0, iobase + ASC_CONTROL);
-
- if (WAIT(iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) {
- dprintk("failed!\n");
- goto err_release;
- } else
- dprintk("ok!\n");
-
- if (inb(iobase + ASC_INTR_STAT) == 1) {
- /*
- * We register here, to get a pointer to the extra space,
- * which we'll use as the Adapter structure (host) for
- * this adapter. It is located just after the registered
- * Scsi_Host structure (sh), and is located by the empty
- * array hostdata.
- */
- sh = scsi_register(tpnt, sizeof(Adapter));
- if (sh == NULL)
- goto err_release;
-
- host = (Adapter *) sh->hostdata;
-
- dprintk("wd7000_detect: adapter allocated at 0x%x\n", (int) host);
- memset(host, 0, sizeof(Adapter));
-
- host->irq = configs[pass].irq;
- host->dma = configs[pass].dma;
- host->iobase = iobase;
- host->int_counter = 0;
- host->bus_on = configs[pass].bus_on;
- host->bus_off = configs[pass].bus_off;
- host->sh = wd7000_host[unit] = sh;
- unit++;
-
- dprintk("wd7000_detect: Trying init WD-7000 card at IO " "0x%x, IRQ %d, DMA %d...\n", host->iobase, host->irq, host->dma);
-
- if (!wd7000_init(host)) /* Initialization failed */
- goto err_unregister;
-
- /*
- * OK from here - we'll use this adapter/configuration.
- */
- wd7000_revision(host); /* important for scatter/gather */
-
- /*
- * For boards before rev 6.0, scatter/gather isn't supported.
- */
- if (host->rev1 < 6)
- sh->sg_tablesize = 1;
-
- present++; /* count it */
-
- if (biosaddr_ptr != NUM_ADDRS)
- biosptr[pass] = biosaddr_ptr;
-
- printk(KERN_INFO "Western Digital WD-7000 (rev %d.%d) ", host->rev1, host->rev2);
- printk("using IO 0x%x, IRQ %d, DMA %d.\n", host->iobase, host->irq, host->dma);
- printk(" BUS_ON time: %dns, BUS_OFF time: %dns\n", host->bus_on * 125, host->bus_off * 125);
- }
- } else
- dprintk("wd7000_detect: IO 0x%x region already allocated!\n", iobase);
-
- continue;
-
- err_unregister:
- scsi_unregister(sh);
- err_release:
- release_region(iobase, 4);
-
- }
-
- if (!present)
- printk("Failed initialization of WD-7000 SCSI card!\n");
-
- return (present);
-}
-
-static int wd7000_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, NULL);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- scsi_unregister(shost);
- return 0;
-}
-
-#if 0
-/*
- * I have absolutely NO idea how to do an abort with the WD7000...
- */
-static int wd7000_abort(Scsi_Cmnd * SCpnt)
-{
- Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
-
- if (inb(host->iobase + ASC_STAT) & INT_IM) {
- printk("wd7000_abort: lost interrupt\n");
- wd7000_intr_handle(host->irq, NULL, NULL);
- return FAILED;
- }
- return FAILED;
-}
-#endif
-
-/*
- * Last resort. Reinitialize the board.
- */
-
-static int wd7000_host_reset(struct scsi_cmnd *SCpnt)
-{
- Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
-
- spin_lock_irq(SCpnt->device->host->host_lock);
-
- if (wd7000_adapter_reset(host) < 0) {
- spin_unlock_irq(SCpnt->device->host->host_lock);
- return FAILED;
- }
-
- wd7000_enable_intr(host);
-
- spin_unlock_irq(SCpnt->device->host->host_lock);
- return SUCCESS;
-}
-
-/*
- * This was borrowed directly from aha1542.c. (Zaga)
- */
-
-static int wd7000_biosparam(struct scsi_device *sdev,
- struct block_device *bdev, sector_t capacity, int *ip)
-{
- char b[BDEVNAME_SIZE];
-
- dprintk("wd7000_biosparam: dev=%s, size=%llu, ",
- bdevname(bdev, b), (u64)capacity);
- (void)b; /* unused var warning? */
-
- /*
- * try default translation
- */
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = capacity >> 11;
-
- /*
- * for disks >1GB do some guessing
- */
- if (ip[2] >= 1024) {
- int info[3];
-
- /*
- * try to figure out the geometry from the partition table
- */
- if ((scsicam_bios_param(bdev, capacity, info) < 0) || !(((info[0] == 64) && (info[1] == 32)) || ((info[0] == 255) && (info[1] == 63)))) {
- printk("wd7000_biosparam: unable to verify geometry for disk with >1GB.\n" " using extended translation.\n");
-
- ip[0] = 255;
- ip[1] = 63;
- ip[2] = (unsigned long) capacity / (255 * 63);
- } else {
- ip[0] = info[0];
- ip[1] = info[1];
- ip[2] = info[2];
-
- if (info[0] == 255)
- printk(KERN_INFO "%s: current partition table is " "using extended translation.\n", __func__);
- }
- }
-
- dprintk("bios geometry: head=%d, sec=%d, cyl=%d\n", ip[0], ip[1], ip[2]);
- dprintk("WARNING: check, if the bios geometry is correct.\n");
-
- return (0);
-}
-
-MODULE_AUTHOR("Thomas Wuensche, John Boyd, Miroslav Zagorac");
-MODULE_DESCRIPTION("Driver for the WD7000 series ISA controllers");
-MODULE_LICENSE("GPL");
-
-static struct scsi_host_template driver_template = {
- .proc_name = "wd7000",
- .show_info = wd7000_show_info,
- .write_info = wd7000_set_info,
- .name = "Western Digital WD-7000",
- .detect = wd7000_detect,
- .release = wd7000_release,
- .queuecommand = wd7000_queuecommand,
- .eh_host_reset_handler = wd7000_host_reset,
- .bios_param = wd7000_biosparam,
- .can_queue = WD7000_Q,
- .this_id = 7,
- .sg_tablesize = WD7000_SG,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-#include "scsi_module.c"
#include <linux/types.h>
#include <linux/blkdev.h>
+/*
+ * A T10 PI-capable target device can be formatted with different
+ * protection schemes. Currently 0 through 3 are defined:
+ *
+ * Type 0 is regular (unprotected) I/O
+ *
+ * Type 1 defines the contents of the guard and reference tags
+ *
+ * Type 2 defines the contents of the guard and reference tags and
+ * uses 32-byte commands to seed the latter
+ *
+ * Type 3 defines the contents of the guard tag only
+ */
+enum t10_dif_type {
+ T10_PI_TYPE0_PROTECTION = 0x0,
+ T10_PI_TYPE1_PROTECTION = 0x1,
+ T10_PI_TYPE2_PROTECTION = 0x2,
+ T10_PI_TYPE3_PROTECTION = 0x3,
+};
+
/*
* T10 Protection Information tuple.
*/
* at this time, this provides future flexibility.
*/
#define DK_CXLFLASH_ALL_PORTS_ACTIVE 0x0000000000000001ULL
+#define DK_CXLFLASH_APP_CLOSE_ADAP_FD 0x0000000000000002ULL
/*
- * Notes:
- * -----
+ * General Notes:
+ * -------------
* The 'context_id' field of all ioctl structures contains the context
* identifier for a context in the lower 32-bits (upper 32-bits are not
* to be used when identifying a context to the AFU). That said, the value
* in its entirety (all 64-bits) is to be treated as an opaque cookie and
* should be presented as such when issuing ioctls.
+ */
+
+/*
+ * DK_CXLFLASH_ATTACH Notes:
+ * ------------------------
+ * Read/write access permissions are specified via the O_RDONLY, O_WRONLY,
+ * and O_RDWR flags defined in the fcntl.h header file.
*
- * For DK_CXLFLASH_ATTACH ioctl, user specifies read/write access
- * permissions via the O_RDONLY, O_WRONLY, and O_RDWR flags defined in
- * the fcntl.h header file.
+ * A valid adapter file descriptor (fd >= 0) is only returned on the initial
+ * attach (successful) of a context. When a context is shared(reused), the user
+ * is expected to already 'know' the adapter file descriptor associated with the
+ * context.
*/
#define DK_CXLFLASH_ATTACH_REUSE_CONTEXT 0x8000000000000000ULL
projects / cascardo / linux.git / commitdiff