# of SCSI_DH if the latter isn't defined but if
# it is, DM_MULTIPATH must depend on it. We get a build
# error if SCSI_DH=m and DM_MULTIPATH=y
- depends on SCSI_DH || !SCSI_DH
+ depends on !SCSI_DH || SCSI
---help---
Allow volume managers to support multipath hardware.
static void free_pgpaths(struct list_head *pgpaths, struct dm_target *ti)
{
struct pgpath *pgpath, *tmp;
- struct multipath *m = ti->private;
list_for_each_entry_safe(pgpath, tmp, pgpaths, list) {
list_del(&pgpath->list);
- if (m->hw_handler_name)
- scsi_dh_detach(bdev_get_queue(pgpath->path.dev->bdev));
dm_put_device(ti, pgpath->path.dev);
free_pgpath(pgpath);
}
q = bdev_get_queue(p->path.dev->bdev);
if (m->retain_attached_hw_handler) {
+retain:
attached_handler_name = scsi_dh_attached_handler_name(q, GFP_KERNEL);
if (attached_handler_name) {
/*
}
if (m->hw_handler_name) {
- /*
- * Increments scsi_dh reference, even when using an
- * already-attached handler.
- */
r = scsi_dh_attach(q, m->hw_handler_name);
if (r == -EBUSY) {
- /*
- * Already attached to different hw_handler:
- * try to reattach with correct one.
- */
- scsi_dh_detach(q);
- r = scsi_dh_attach(q, m->hw_handler_name);
- }
+ char b[BDEVNAME_SIZE];
+ printk(KERN_INFO "dm-mpath: retaining handler on device %s\n",
+ bdevname(p->path.dev->bdev, b));
+ goto retain;
+ }
if (r < 0) {
ti->error = "error attaching hardware handler";
dm_put_device(ti, p->path.dev);
if (r < 0) {
ti->error = "unable to set hardware "
"handler parameters";
- scsi_dh_detach(q);
dm_put_device(ti, p->path.dev);
goto bad;
}
return 0;
m->hw_handler_name = kstrdup(dm_shift_arg(as), GFP_KERNEL);
- if (!try_then_request_module(scsi_dh_handler_exist(m->hw_handler_name),
- "scsi_dh_%s", m->hw_handler_name)) {
- ti->error = "unknown hardware handler type";
- ret = -EINVAL;
- goto fail;
- }
if (hw_argc > 1) {
char *p;
scsi_mod-$(CONFIG_SCSI_PROC_FS) += scsi_proc.o
scsi_mod-y += scsi_trace.o scsi_logging.o
scsi_mod-$(CONFIG_PM) += scsi_pm.o
+scsi_mod-$(CONFIG_SCSI_DH) += scsi_dh.o
hv_storvsc-y := storvsc_drv.o
{
int err, i;
u32 offs, size;
- struct asd_ll_el *el;
+ struct asd_ll_el *el = NULL;
struct asd_ctrla_phy_settings *ps;
struct asd_ctrla_phy_settings dflt_ps;
size = sizeof(struct asd_ctrla_phy_settings);
ps = &dflt_ps;
+ goto out_process;
}
if (size == 0)
ASD_DPRINTK("couldn't find ctrla phy settings struct\n");
goto out2;
}
-
+out_process:
err = asd_process_ctrla_phy_settings(asd_ha, ps);
if (err) {
ASD_DPRINTK("couldn't process ctrla phy settings\n");
if (sfp->state_query_cbfn)
sfp->state_query_cbfn(sfp->state_query_cbarg,
sfp->status);
- sfp->media = NULL;
- }
+ sfp->media = NULL;
+ }
- if (sfp->portspeed) {
- sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed);
- if (sfp->state_query_cbfn)
- sfp->state_query_cbfn(sfp->state_query_cbarg,
- sfp->status);
- sfp->portspeed = BFA_PORT_SPEED_UNKNOWN;
- }
+ if (sfp->portspeed) {
+ sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed);
+ if (sfp->state_query_cbfn)
+ sfp->state_query_cbfn(sfp->state_query_cbarg,
+ sfp->status);
+ sfp->portspeed = BFA_PORT_SPEED_UNKNOWN;
+ }
- sfp->state_query_lock = 0;
- sfp->state_query_cbfn = NULL;
+ sfp->state_query_lock = 0;
+ sfp->state_query_cbfn = NULL;
}
/*
bfa_trc(sfp, sfp->data_valid);
if (sfp->data_valid) {
u32 size = sizeof(struct sfp_mem_s);
- u8 *des = (u8 *) &(sfp->sfpmem);
+ u8 *des = (u8 *)(sfp->sfpmem);
memcpy(des, sfp->dbuf_kva, size);
}
/*
#
menuconfig SCSI_DH
- tristate "SCSI Device Handlers"
+ bool "SCSI Device Handlers"
depends on SCSI
default n
help
#
# SCSI Device Handler
#
-obj-$(CONFIG_SCSI_DH) += scsi_dh.o
obj-$(CONFIG_SCSI_DH_RDAC) += scsi_dh_rdac.o
obj-$(CONFIG_SCSI_DH_HP_SW) += scsi_dh_hp_sw.o
obj-$(CONFIG_SCSI_DH_EMC) += scsi_dh_emc.o
+++ /dev/null
-/*
- * SCSI device handler infrastruture.
- *
- * 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 of the License, 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.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2007
- * Authors:
- * Chandra Seetharaman <sekharan@us.ibm.com>
- * Mike Anderson <andmike@linux.vnet.ibm.com>
- */
-
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <scsi/scsi_dh.h>
-#include "../scsi_priv.h"
-
-static DEFINE_SPINLOCK(list_lock);
-static LIST_HEAD(scsi_dh_list);
-
-static struct scsi_device_handler *get_device_handler(const char *name)
-{
- struct scsi_device_handler *tmp, *found = NULL;
-
- spin_lock(&list_lock);
- list_for_each_entry(tmp, &scsi_dh_list, list) {
- if (!strncmp(tmp->name, name, strlen(tmp->name))) {
- found = tmp;
- break;
- }
- }
- spin_unlock(&list_lock);
- return found;
-}
-
-/*
- * device_handler_match_function - Match a device handler to a device
- * @sdev - SCSI device to be tested
- *
- * Tests @sdev against the match function of all registered device_handler.
- * Returns the found device handler or NULL if not found.
- */
-static struct scsi_device_handler *
-device_handler_match_function(struct scsi_device *sdev)
-{
- struct scsi_device_handler *tmp_dh, *found_dh = NULL;
-
- spin_lock(&list_lock);
- list_for_each_entry(tmp_dh, &scsi_dh_list, list) {
- if (tmp_dh->match && tmp_dh->match(sdev)) {
- found_dh = tmp_dh;
- break;
- }
- }
- spin_unlock(&list_lock);
- return found_dh;
-}
-
-/*
- * device_handler_match - Attach a device handler to a device
- * @scsi_dh - The device handler to match against or NULL
- * @sdev - SCSI device to be tested against @scsi_dh
- *
- * Tests @sdev against the device handler @scsi_dh or against
- * all registered device_handler if @scsi_dh == NULL.
- * Returns the found device handler or NULL if not found.
- */
-static struct scsi_device_handler *
-device_handler_match(struct scsi_device_handler *scsi_dh,
- struct scsi_device *sdev)
-{
- struct scsi_device_handler *found_dh;
-
- found_dh = device_handler_match_function(sdev);
-
- if (scsi_dh && found_dh != scsi_dh)
- found_dh = NULL;
-
- return found_dh;
-}
-
-/*
- * scsi_dh_handler_attach - Attach a device handler to a device
- * @sdev - SCSI device the device handler should attach to
- * @scsi_dh - The device handler to attach
- */
-static int scsi_dh_handler_attach(struct scsi_device *sdev,
- struct scsi_device_handler *scsi_dh)
-{
- struct scsi_dh_data *d;
-
- if (sdev->scsi_dh_data) {
- if (sdev->scsi_dh_data->scsi_dh != scsi_dh)
- return -EBUSY;
-
- kref_get(&sdev->scsi_dh_data->kref);
- return 0;
- }
-
- if (!try_module_get(scsi_dh->module))
- return -EINVAL;
-
- d = scsi_dh->attach(sdev);
- if (IS_ERR(d)) {
- sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%ld)\n",
- scsi_dh->name, PTR_ERR(d));
- module_put(scsi_dh->module);
- return PTR_ERR(d);
- }
-
- d->scsi_dh = scsi_dh;
- kref_init(&d->kref);
- d->sdev = sdev;
-
- spin_lock_irq(sdev->request_queue->queue_lock);
- sdev->scsi_dh_data = d;
- spin_unlock_irq(sdev->request_queue->queue_lock);
- return 0;
-}
-
-static void __detach_handler (struct kref *kref)
-{
- struct scsi_dh_data *scsi_dh_data =
- container_of(kref, struct scsi_dh_data, kref);
- struct scsi_device_handler *scsi_dh = scsi_dh_data->scsi_dh;
- struct scsi_device *sdev = scsi_dh_data->sdev;
-
- scsi_dh->detach(sdev);
-
- spin_lock_irq(sdev->request_queue->queue_lock);
- sdev->scsi_dh_data = NULL;
- spin_unlock_irq(sdev->request_queue->queue_lock);
-
- sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", scsi_dh->name);
- module_put(scsi_dh->module);
-}
-
-/*
- * scsi_dh_handler_detach - Detach a device handler from a device
- * @sdev - SCSI device the device handler should be detached from
- * @scsi_dh - Device handler to be detached
- *
- * Detach from a device handler. If a device handler is specified,
- * only detach if the currently attached handler matches @scsi_dh.
- */
-static void scsi_dh_handler_detach(struct scsi_device *sdev,
- struct scsi_device_handler *scsi_dh)
-{
- if (!sdev->scsi_dh_data)
- return;
-
- if (scsi_dh && scsi_dh != sdev->scsi_dh_data->scsi_dh)
- return;
-
- if (!scsi_dh)
- scsi_dh = sdev->scsi_dh_data->scsi_dh;
-
- if (scsi_dh)
- kref_put(&sdev->scsi_dh_data->kref, __detach_handler);
-}
-
-/*
- * Functions for sysfs attribute 'dh_state'
- */
-static ssize_t
-store_dh_state(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct scsi_device *sdev = to_scsi_device(dev);
- struct scsi_device_handler *scsi_dh;
- int err = -EINVAL;
-
- if (sdev->sdev_state == SDEV_CANCEL ||
- sdev->sdev_state == SDEV_DEL)
- return -ENODEV;
-
- if (!sdev->scsi_dh_data) {
- /*
- * Attach to a device handler
- */
- if (!(scsi_dh = get_device_handler(buf)))
- return err;
- err = scsi_dh_handler_attach(sdev, scsi_dh);
- } else {
- scsi_dh = sdev->scsi_dh_data->scsi_dh;
- if (!strncmp(buf, "detach", 6)) {
- /*
- * Detach from a device handler
- */
- scsi_dh_handler_detach(sdev, scsi_dh);
- err = 0;
- } else if (!strncmp(buf, "activate", 8)) {
- /*
- * Activate a device handler
- */
- if (scsi_dh->activate)
- err = scsi_dh->activate(sdev, NULL, NULL);
- else
- err = 0;
- }
- }
-
- return err<0?err:count;
-}
-
-static ssize_t
-show_dh_state(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct scsi_device *sdev = to_scsi_device(dev);
-
- if (!sdev->scsi_dh_data)
- return snprintf(buf, 20, "detached\n");
-
- return snprintf(buf, 20, "%s\n", sdev->scsi_dh_data->scsi_dh->name);
-}
-
-static struct device_attribute scsi_dh_state_attr =
- __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state,
- store_dh_state);
-
-/*
- * scsi_dh_sysfs_attr_add - Callback for scsi_init_dh
- */
-static int scsi_dh_sysfs_attr_add(struct device *dev, void *data)
-{
- struct scsi_device *sdev;
- int err;
-
- if (!scsi_is_sdev_device(dev))
- return 0;
-
- sdev = to_scsi_device(dev);
-
- err = device_create_file(&sdev->sdev_gendev,
- &scsi_dh_state_attr);
-
- return 0;
-}
-
-/*
- * scsi_dh_sysfs_attr_remove - Callback for scsi_exit_dh
- */
-static int scsi_dh_sysfs_attr_remove(struct device *dev, void *data)
-{
- struct scsi_device *sdev;
-
- if (!scsi_is_sdev_device(dev))
- return 0;
-
- sdev = to_scsi_device(dev);
-
- device_remove_file(&sdev->sdev_gendev,
- &scsi_dh_state_attr);
-
- return 0;
-}
-
-/*
- * scsi_dh_notifier - notifier chain callback
- */
-static int scsi_dh_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct device *dev = data;
- struct scsi_device *sdev;
- int err = 0;
- struct scsi_device_handler *devinfo = NULL;
-
- if (!scsi_is_sdev_device(dev))
- return 0;
-
- sdev = to_scsi_device(dev);
-
- if (action == BUS_NOTIFY_ADD_DEVICE) {
- err = device_create_file(dev, &scsi_dh_state_attr);
- /* don't care about err */
- devinfo = device_handler_match(NULL, sdev);
- if (devinfo)
- err = scsi_dh_handler_attach(sdev, devinfo);
- } else if (action == BUS_NOTIFY_DEL_DEVICE) {
- device_remove_file(dev, &scsi_dh_state_attr);
- scsi_dh_handler_detach(sdev, NULL);
- }
- return err;
-}
-
-/*
- * scsi_dh_notifier_add - Callback for scsi_register_device_handler
- */
-static int scsi_dh_notifier_add(struct device *dev, void *data)
-{
- struct scsi_device_handler *scsi_dh = data;
- struct scsi_device *sdev;
-
- if (!scsi_is_sdev_device(dev))
- return 0;
-
- if (!get_device(dev))
- return 0;
-
- sdev = to_scsi_device(dev);
-
- if (device_handler_match(scsi_dh, sdev))
- scsi_dh_handler_attach(sdev, scsi_dh);
-
- put_device(dev);
-
- return 0;
-}
-
-/*
- * scsi_dh_notifier_remove - Callback for scsi_unregister_device_handler
- */
-static int scsi_dh_notifier_remove(struct device *dev, void *data)
-{
- struct scsi_device_handler *scsi_dh = data;
- struct scsi_device *sdev;
-
- if (!scsi_is_sdev_device(dev))
- return 0;
-
- if (!get_device(dev))
- return 0;
-
- sdev = to_scsi_device(dev);
-
- scsi_dh_handler_detach(sdev, scsi_dh);
-
- put_device(dev);
-
- return 0;
-}
-
-/*
- * scsi_register_device_handler - register a device handler personality
- * module.
- * @scsi_dh - device handler to be registered.
- *
- * Returns 0 on success, -EBUSY if handler already registered.
- */
-int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
-{
-
- if (get_device_handler(scsi_dh->name))
- return -EBUSY;
-
- if (!scsi_dh->attach || !scsi_dh->detach)
- return -EINVAL;
-
- spin_lock(&list_lock);
- list_add(&scsi_dh->list, &scsi_dh_list);
- spin_unlock(&list_lock);
-
- bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
- printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
-
- return SCSI_DH_OK;
-}
-EXPORT_SYMBOL_GPL(scsi_register_device_handler);
-
-/*
- * scsi_unregister_device_handler - register a device handler personality
- * module.
- * @scsi_dh - device handler to be unregistered.
- *
- * Returns 0 on success, -ENODEV if handler not registered.
- */
-int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
-{
-
- if (!get_device_handler(scsi_dh->name))
- return -ENODEV;
-
- bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
- scsi_dh_notifier_remove);
-
- spin_lock(&list_lock);
- list_del(&scsi_dh->list);
- spin_unlock(&list_lock);
- printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
-
- return SCSI_DH_OK;
-}
-EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
-
-/*
- * scsi_dh_activate - activate the path associated with the scsi_device
- * corresponding to the given request queue.
- * Returns immediately without waiting for activation to be completed.
- * @q - Request queue that is associated with the scsi_device to be
- * activated.
- * @fn - Function to be called upon completion of the activation.
- * Function fn is called with data (below) and the error code.
- * Function fn may be called from the same calling context. So,
- * do not hold the lock in the caller which may be needed in fn.
- * @data - data passed to the function fn upon completion.
- *
- */
-int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data)
-{
- int err = 0;
- unsigned long flags;
- struct scsi_device *sdev;
- struct scsi_device_handler *scsi_dh = NULL;
- struct device *dev = NULL;
-
- spin_lock_irqsave(q->queue_lock, flags);
- sdev = q->queuedata;
- if (!sdev) {
- spin_unlock_irqrestore(q->queue_lock, flags);
- err = SCSI_DH_NOSYS;
- if (fn)
- fn(data, err);
- return err;
- }
-
- if (sdev->scsi_dh_data)
- scsi_dh = sdev->scsi_dh_data->scsi_dh;
- dev = get_device(&sdev->sdev_gendev);
- if (!scsi_dh || !dev ||
- sdev->sdev_state == SDEV_CANCEL ||
- sdev->sdev_state == SDEV_DEL)
- err = SCSI_DH_NOSYS;
- if (sdev->sdev_state == SDEV_OFFLINE)
- err = SCSI_DH_DEV_OFFLINED;
- spin_unlock_irqrestore(q->queue_lock, flags);
-
- if (err) {
- if (fn)
- fn(data, err);
- goto out;
- }
-
- if (scsi_dh->activate)
- err = scsi_dh->activate(sdev, fn, data);
-out:
- put_device(dev);
- return err;
-}
-EXPORT_SYMBOL_GPL(scsi_dh_activate);
-
-/*
- * scsi_dh_set_params - set the parameters for the device as per the
- * string specified in params.
- * @q - Request queue that is associated with the scsi_device for
- * which the parameters to be set.
- * @params - parameters in the following format
- * "no_of_params\0param1\0param2\0param3\0...\0"
- * for example, string for 2 parameters with value 10 and 21
- * is specified as "2\010\021\0".
- */
-int scsi_dh_set_params(struct request_queue *q, const char *params)
-{
- int err = -SCSI_DH_NOSYS;
- unsigned long flags;
- struct scsi_device *sdev;
- struct scsi_device_handler *scsi_dh = NULL;
-
- spin_lock_irqsave(q->queue_lock, flags);
- sdev = q->queuedata;
- if (sdev && sdev->scsi_dh_data)
- scsi_dh = sdev->scsi_dh_data->scsi_dh;
- if (scsi_dh && scsi_dh->set_params && get_device(&sdev->sdev_gendev))
- err = 0;
- spin_unlock_irqrestore(q->queue_lock, flags);
-
- if (err)
- return err;
- err = scsi_dh->set_params(sdev, params);
- put_device(&sdev->sdev_gendev);
- return err;
-}
-EXPORT_SYMBOL_GPL(scsi_dh_set_params);
-
-/*
- * scsi_dh_handler_exist - Return TRUE(1) if a device handler exists for
- * the given name. FALSE(0) otherwise.
- * @name - name of the device handler.
- */
-int scsi_dh_handler_exist(const char *name)
-{
- return (get_device_handler(name) != NULL);
-}
-EXPORT_SYMBOL_GPL(scsi_dh_handler_exist);
-
-/*
- * scsi_dh_attach - Attach device handler
- * @q - Request queue that is associated with the scsi_device
- * the handler should be attached to
- * @name - name of the handler to attach
- */
-int scsi_dh_attach(struct request_queue *q, const char *name)
-{
- unsigned long flags;
- struct scsi_device *sdev;
- struct scsi_device_handler *scsi_dh;
- int err = 0;
-
- scsi_dh = get_device_handler(name);
- if (!scsi_dh)
- return -EINVAL;
-
- spin_lock_irqsave(q->queue_lock, flags);
- sdev = q->queuedata;
- if (!sdev || !get_device(&sdev->sdev_gendev))
- err = -ENODEV;
- spin_unlock_irqrestore(q->queue_lock, flags);
-
- if (!err) {
- err = scsi_dh_handler_attach(sdev, scsi_dh);
- put_device(&sdev->sdev_gendev);
- }
- return err;
-}
-EXPORT_SYMBOL_GPL(scsi_dh_attach);
-
-/*
- * scsi_dh_detach - Detach device handler
- * @q - Request queue that is associated with the scsi_device
- * the handler should be detached from
- *
- * This function will detach the device handler only
- * if the sdev is not part of the internal list, ie
- * if it has been attached manually.
- */
-void scsi_dh_detach(struct request_queue *q)
-{
- unsigned long flags;
- struct scsi_device *sdev;
- struct scsi_device_handler *scsi_dh = NULL;
-
- spin_lock_irqsave(q->queue_lock, flags);
- sdev = q->queuedata;
- if (!sdev || !get_device(&sdev->sdev_gendev))
- sdev = NULL;
- spin_unlock_irqrestore(q->queue_lock, flags);
-
- if (!sdev)
- return;
-
- if (sdev->scsi_dh_data) {
- scsi_dh = sdev->scsi_dh_data->scsi_dh;
- scsi_dh_handler_detach(sdev, scsi_dh);
- }
- put_device(&sdev->sdev_gendev);
-}
-EXPORT_SYMBOL_GPL(scsi_dh_detach);
-
-/*
- * scsi_dh_attached_handler_name - Get attached device handler's name
- * @q - Request queue that is associated with the scsi_device
- * that may have a device handler attached
- * @gfp - the GFP mask used in the kmalloc() call when allocating memory
- *
- * Returns name of attached handler, NULL if no handler is attached.
- * Caller must take care to free the returned string.
- */
-const char *scsi_dh_attached_handler_name(struct request_queue *q, gfp_t gfp)
-{
- unsigned long flags;
- struct scsi_device *sdev;
- const char *handler_name = NULL;
-
- spin_lock_irqsave(q->queue_lock, flags);
- sdev = q->queuedata;
- if (!sdev || !get_device(&sdev->sdev_gendev))
- sdev = NULL;
- spin_unlock_irqrestore(q->queue_lock, flags);
-
- if (!sdev)
- return NULL;
-
- if (sdev->scsi_dh_data)
- handler_name = kstrdup(sdev->scsi_dh_data->scsi_dh->name, gfp);
-
- put_device(&sdev->sdev_gendev);
- return handler_name;
-}
-EXPORT_SYMBOL_GPL(scsi_dh_attached_handler_name);
-
-static struct notifier_block scsi_dh_nb = {
- .notifier_call = scsi_dh_notifier
-};
-
-static int __init scsi_dh_init(void)
-{
- int r;
-
- r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
-
- if (!r)
- bus_for_each_dev(&scsi_bus_type, NULL, NULL,
- scsi_dh_sysfs_attr_add);
-
- return r;
-}
-
-static void __exit scsi_dh_exit(void)
-{
- bus_for_each_dev(&scsi_bus_type, NULL, NULL,
- scsi_dh_sysfs_attr_remove);
- bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
-}
-
-module_init(scsi_dh_init);
-module_exit(scsi_dh_exit);
-
-MODULE_DESCRIPTION("SCSI device handler");
-MODULE_AUTHOR("Chandra Seetharaman <sekharan@us.ibm.com>");
-MODULE_LICENSE("GPL");
#define ALUA_OPTIMIZE_STPG 1
struct alua_dh_data {
- struct scsi_dh_data dh_data;
int group_id;
int rel_port;
int tpgs;
static char print_alua_state(int);
static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *);
-static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev)
-{
- return container_of(sdev->scsi_dh_data, struct alua_dh_data, dh_data);
-}
-
static int realloc_buffer(struct alua_dh_data *h, unsigned len)
{
if (h->buff && h->buff != h->inq)
*/
static int alua_set_params(struct scsi_device *sdev, const char *params)
{
- struct alua_dh_data *h = get_alua_data(sdev);
+ struct alua_dh_data *h = sdev->handler_data;
unsigned int optimize = 0, argc;
const char *p = params;
int result = SCSI_DH_OK;
static int alua_activate(struct scsi_device *sdev,
activate_complete fn, void *data)
{
- struct alua_dh_data *h = get_alua_data(sdev);
+ struct alua_dh_data *h = sdev->handler_data;
int err = SCSI_DH_OK;
int stpg = 0;
*/
static int alua_prep_fn(struct scsi_device *sdev, struct request *req)
{
- struct alua_dh_data *h = get_alua_data(sdev);
+ struct alua_dh_data *h = sdev->handler_data;
int ret = BLKPREP_OK;
if (h->state == TPGS_STATE_TRANSITIONING)
}
-static bool alua_match(struct scsi_device *sdev)
-{
- return (scsi_device_tpgs(sdev) != 0);
-}
-
/*
* alua_bus_attach - Attach device handler
* @sdev: device to be attached to
*/
-static struct scsi_dh_data *alua_bus_attach(struct scsi_device *sdev)
+static int alua_bus_attach(struct scsi_device *sdev)
{
struct alua_dh_data *h;
int err;
h = kzalloc(sizeof(*h) , GFP_KERNEL);
if (!h)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
h->tpgs = TPGS_MODE_UNINITIALIZED;
h->state = TPGS_STATE_OPTIMIZED;
h->group_id = -1;
if (err != SCSI_DH_OK && err != SCSI_DH_DEV_OFFLINED)
goto failed;
- sdev_printk(KERN_NOTICE, sdev, "%s: Attached\n", ALUA_DH_NAME);
- return &h->dh_data;
+ sdev->handler_data = h;
+ return 0;
failed:
kfree(h);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
/*
*/
static void alua_bus_detach(struct scsi_device *sdev)
{
- struct alua_dh_data *h = get_alua_data(sdev);
+ struct alua_dh_data *h = sdev->handler_data;
if (h->buff && h->inq != h->buff)
kfree(h->buff);
+ sdev->handler_data = NULL;
kfree(h);
}
.check_sense = alua_check_sense,
.activate = alua_activate,
.set_params = alua_set_params,
- .match = alua_match,
};
static int __init alua_init(void)
};
struct clariion_dh_data {
- struct scsi_dh_data dh_data;
/*
* Flags:
* CLARIION_SHORT_TRESPASS
int current_sp;
};
-static inline struct clariion_dh_data
- *get_clariion_data(struct scsi_device *sdev)
-{
- return container_of(sdev->scsi_dh_data, struct clariion_dh_data,
- dh_data);
-}
-
/*
* Parse MODE_SELECT cmd reply.
*/
static int clariion_prep_fn(struct scsi_device *sdev, struct request *req)
{
- struct clariion_dh_data *h = get_clariion_data(sdev);
+ struct clariion_dh_data *h = sdev->handler_data;
int ret = BLKPREP_OK;
if (h->lun_state != CLARIION_LUN_OWNED) {
static int clariion_activate(struct scsi_device *sdev,
activate_complete fn, void *data)
{
- struct clariion_dh_data *csdev = get_clariion_data(sdev);
+ struct clariion_dh_data *csdev = sdev->handler_data;
int result;
result = clariion_send_inquiry(sdev, csdev);
*/
static int clariion_set_params(struct scsi_device *sdev, const char *params)
{
- struct clariion_dh_data *csdev = get_clariion_data(sdev);
+ struct clariion_dh_data *csdev = sdev->handler_data;
unsigned int hr = 0, st = 0, argc;
const char *p = params;
int result = SCSI_DH_OK;
return result;
}
-static const struct {
- char *vendor;
- char *model;
-} clariion_dev_list[] = {
- {"DGC", "RAID"},
- {"DGC", "DISK"},
- {"DGC", "VRAID"},
- {NULL, NULL},
-};
-
-static bool clariion_match(struct scsi_device *sdev)
-{
- int i;
-
- if (scsi_device_tpgs(sdev))
- return false;
-
- for (i = 0; clariion_dev_list[i].vendor; i++) {
- if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor,
- strlen(clariion_dev_list[i].vendor)) &&
- !strncmp(sdev->model, clariion_dev_list[i].model,
- strlen(clariion_dev_list[i].model))) {
- return true;
- }
- }
- return false;
-}
-
-static struct scsi_dh_data *clariion_bus_attach(struct scsi_device *sdev)
+static int clariion_bus_attach(struct scsi_device *sdev)
{
struct clariion_dh_data *h;
int err;
h = kzalloc(sizeof(*h) , GFP_KERNEL);
if (!h)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
h->lun_state = CLARIION_LUN_UNINITIALIZED;
h->default_sp = CLARIION_UNBOUND_LU;
h->current_sp = CLARIION_UNBOUND_LU;
CLARIION_NAME, h->current_sp + 'A',
h->port, lun_state[h->lun_state],
h->default_sp + 'A');
- return &h->dh_data;
+
+ sdev->handler_data = h;
+ return 0;
failed:
kfree(h);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
static void clariion_bus_detach(struct scsi_device *sdev)
{
- struct clariion_dh_data *h = get_clariion_data(sdev);
-
- kfree(h);
+ kfree(sdev->handler_data);
+ sdev->handler_data = NULL;
}
static struct scsi_device_handler clariion_dh = {
.activate = clariion_activate,
.prep_fn = clariion_prep_fn,
.set_params = clariion_set_params,
- .match = clariion_match,
};
static int __init clariion_init(void)
#define HP_SW_PATH_PASSIVE 1
struct hp_sw_dh_data {
- struct scsi_dh_data dh_data;
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
int path_state;
int retries;
static int hp_sw_start_stop(struct hp_sw_dh_data *);
-static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev)
-{
- return container_of(sdev->scsi_dh_data, struct hp_sw_dh_data, dh_data);
-}
-
/*
* tur_done - Handle TEST UNIT READY return status
* @sdev: sdev the command has been sent to
static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req)
{
- struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
+ struct hp_sw_dh_data *h = sdev->handler_data;
int ret = BLKPREP_OK;
if (h->path_state != HP_SW_PATH_ACTIVE) {
activate_complete fn, void *data)
{
int ret = SCSI_DH_OK;
- struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
+ struct hp_sw_dh_data *h = sdev->handler_data;
ret = hp_sw_tur(sdev, h);
return 0;
}
-static const struct {
- char *vendor;
- char *model;
-} hp_sw_dh_data_list[] = {
- {"COMPAQ", "MSA1000 VOLUME"},
- {"COMPAQ", "HSV110"},
- {"HP", "HSV100"},
- {"DEC", "HSG80"},
- {NULL, NULL},
-};
-
-static bool hp_sw_match(struct scsi_device *sdev)
-{
- int i;
-
- if (scsi_device_tpgs(sdev))
- return false;
-
- for (i = 0; hp_sw_dh_data_list[i].vendor; i++) {
- if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor,
- strlen(hp_sw_dh_data_list[i].vendor)) &&
- !strncmp(sdev->model, hp_sw_dh_data_list[i].model,
- strlen(hp_sw_dh_data_list[i].model))) {
- return true;
- }
- }
- return false;
-}
-
-static struct scsi_dh_data *hp_sw_bus_attach(struct scsi_device *sdev)
+static int hp_sw_bus_attach(struct scsi_device *sdev)
{
struct hp_sw_dh_data *h;
int ret;
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
h->path_state = HP_SW_PATH_UNINITIALIZED;
h->retries = HP_SW_RETRIES;
h->sdev = sdev;
sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n",
HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE?
"active":"passive");
- return &h->dh_data;
+
+ sdev->handler_data = h;
+ return 0;
failed:
kfree(h);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
static void hp_sw_bus_detach( struct scsi_device *sdev )
{
- struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
-
- kfree(h);
+ kfree(sdev->handler_data);
+ sdev->handler_data = NULL;
}
static struct scsi_device_handler hp_sw_dh = {
.detach = hp_sw_bus_detach,
.activate = hp_sw_activate,
.prep_fn = hp_sw_prep_fn,
- .match = hp_sw_match,
};
static int __init hp_sw_init(void)
};
struct rdac_dh_data {
- struct scsi_dh_data dh_data;
struct rdac_controller *ctlr;
#define UNINITIALIZED_LUN (1 << 8)
unsigned lun;
sdev_printk(KERN_INFO, sdev, RDAC_NAME ": " f "\n", ## arg); \
} while (0);
-static inline struct rdac_dh_data *get_rdac_data(struct scsi_device *sdev)
-{
- return container_of(sdev->scsi_dh_data, struct rdac_dh_data, dh_data);
-}
-
static struct request *get_rdac_req(struct scsi_device *sdev,
void *buffer, unsigned buflen, int rw)
{
{
struct scsi_sense_hdr sense_hdr;
int err = SCSI_DH_IO, ret;
- struct rdac_dh_data *h = get_rdac_data(sdev);
+ struct rdac_dh_data *h = sdev->handler_data;
ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr);
if (!ret)
container_of(work, struct rdac_controller, ms_work);
struct request *rq;
struct scsi_device *sdev = ctlr->ms_sdev;
- struct rdac_dh_data *h = get_rdac_data(sdev);
+ struct rdac_dh_data *h = sdev->handler_data;
struct request_queue *q = sdev->request_queue;
int err, retry_cnt = RDAC_RETRY_COUNT;
struct rdac_queue_data *tmp, *qdata;
if (!qdata)
return SCSI_DH_RETRY;
- qdata->h = get_rdac_data(sdev);
+ qdata->h = sdev->handler_data;
qdata->callback_fn = fn;
qdata->callback_data = data;
static int rdac_activate(struct scsi_device *sdev,
activate_complete fn, void *data)
{
- struct rdac_dh_data *h = get_rdac_data(sdev);
+ struct rdac_dh_data *h = sdev->handler_data;
int err = SCSI_DH_OK;
int act = 0;
static int rdac_prep_fn(struct scsi_device *sdev, struct request *req)
{
- struct rdac_dh_data *h = get_rdac_data(sdev);
+ struct rdac_dh_data *h = sdev->handler_data;
int ret = BLKPREP_OK;
if (h->state != RDAC_STATE_ACTIVE) {
static int rdac_check_sense(struct scsi_device *sdev,
struct scsi_sense_hdr *sense_hdr)
{
- struct rdac_dh_data *h = get_rdac_data(sdev);
+ struct rdac_dh_data *h = sdev->handler_data;
RDAC_LOG(RDAC_LOG_SENSE, sdev, "array %s, ctlr %d, "
"I/O returned with sense %02x/%02x/%02x",
return SCSI_RETURN_NOT_HANDLED;
}
-static const struct {
- char *vendor;
- char *model;
-} rdac_dev_list[] = {
- {"IBM", "1722"},
- {"IBM", "1724"},
- {"IBM", "1726"},
- {"IBM", "1742"},
- {"IBM", "1745"},
- {"IBM", "1746"},
- {"IBM", "1813"},
- {"IBM", "1814"},
- {"IBM", "1815"},
- {"IBM", "1818"},
- {"IBM", "3526"},
- {"SGI", "TP9"},
- {"SGI", "IS"},
- {"STK", "OPENstorage D280"},
- {"STK", "FLEXLINE 380"},
- {"SUN", "CSM"},
- {"SUN", "LCSM100"},
- {"SUN", "STK6580_6780"},
- {"SUN", "SUN_6180"},
- {"SUN", "ArrayStorage"},
- {"DELL", "MD3"},
- {"NETAPP", "INF-01-00"},
- {"LSI", "INF-01-00"},
- {"ENGENIO", "INF-01-00"},
- {NULL, NULL},
-};
-
-static bool rdac_match(struct scsi_device *sdev)
-{
- int i;
-
- if (scsi_device_tpgs(sdev))
- return false;
-
- for (i = 0; rdac_dev_list[i].vendor; i++) {
- if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor,
- strlen(rdac_dev_list[i].vendor)) &&
- !strncmp(sdev->model, rdac_dev_list[i].model,
- strlen(rdac_dev_list[i].model))) {
- return true;
- }
- }
- return false;
-}
-
-static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev)
+static int rdac_bus_attach(struct scsi_device *sdev)
{
struct rdac_dh_data *h;
int err;
h = kzalloc(sizeof(*h) , GFP_KERNEL);
if (!h)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
h->lun = UNINITIALIZED_LUN;
h->state = RDAC_STATE_ACTIVE;
RDAC_NAME, h->lun, mode[(int)h->mode],
lun_state[(int)h->lun_state]);
- return &h->dh_data;
+ sdev->handler_data = h;
+ return 0;
clean_ctlr:
spin_lock(&list_lock);
failed:
kfree(h);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
static void rdac_bus_detach( struct scsi_device *sdev )
{
- struct rdac_dh_data *h = get_rdac_data(sdev);
+ struct rdac_dh_data *h = sdev->handler_data;
if (h->ctlr && h->ctlr->ms_queued)
flush_workqueue(kmpath_rdacd);
if (h->ctlr)
kref_put(&h->ctlr->kref, release_controller);
spin_unlock(&list_lock);
+ sdev->handler_data = NULL;
kfree(h);
}
.attach = rdac_bus_attach,
.detach = rdac_bus_detach,
.activate = rdac_activate,
- .match = rdac_match,
};
static int __init rdac_init(void)
* on the ethertype for the given device
*/
fcoe->fcoe_packet_type.func = fcoe_rcv;
- fcoe->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
+ fcoe->fcoe_packet_type.type = htons(ETH_P_FCOE);
fcoe->fcoe_packet_type.dev = netdev;
dev_add_pack(&fcoe->fcoe_packet_type);
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *)sdev->hostdata;
if (res) {
- if (ioa_cfg->sis64 && ipr_is_af_dasd_device(res)) {
+ if (ipr_is_af_dasd_device(res)) {
res->raw_mode = simple_strtoul(buf, NULL, 10);
len = strlen(buf);
if (res->sdev)
(!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
}
- if (res->raw_mode && ipr_is_af_dasd_device(res))
+ if (res->raw_mode && ipr_is_af_dasd_device(res)) {
ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
+ if (scsi_cmd->underflow == 0)
+ ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
+ }
+
if (ioa_cfg->sis64)
rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
else
(struct lpfc_rdp_context *)(mbox->context2);
if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
- goto error;
+ goto error_mbuf_free;
lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
DMP_SFF_PAGE_A2_SIZE);
mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat;
mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED)
- goto error;
+ goto error_cmd_free;
return;
-error:
+error_mbuf_free:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
+error_cmd_free:
lpfc_sli4_mbox_cmd_free(phba, mbox);
rdp_context->cmpl(phba, rdp_context, FAILURE);
}
if (ret)
return ret;
+ /* global ioc spinlock to protect controller list on list operations */
printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
ioc->fwfault_debug = mpt2sas_fwfault_debug;
+ spin_unlock(&gioc_lock);
return 0;
}
dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
+ /* synchronizing freeing resource with pci_access_mutex lock */
+ mutex_lock(&ioc->pci_access_mutex);
if (ioc->chip_phys && ioc->chip) {
_base_mask_interrupts(ioc);
ioc->shost_recovery = 1;
pci_disable_pcie_error_reporting(pdev);
pci_disable_device(pdev);
}
+ mutex_unlock(&ioc->pci_access_mutex);
return;
}
* @flags: MPT_TARGET_FLAGS_XXX flags
* @deleted: target flaged for deletion
* @tm_busy: target is busy with TM request.
+ * @sdev: The sas_device associated with this target
*/
struct MPT2SAS_TARGET {
struct scsi_target *starget;
u32 flags;
u8 deleted;
u8 tm_busy;
+ struct _sas_device *sdev;
};
u8 phy;
u8 responding;
u8 pfa_led_on;
+ struct kref refcount;
};
+static inline void sas_device_get(struct _sas_device *s)
+{
+ kref_get(&s->refcount);
+}
+
+static inline void sas_device_free(struct kref *r)
+{
+ kfree(container_of(r, struct _sas_device, refcount));
+}
+
+static inline void sas_device_put(struct _sas_device *s)
+{
+ kref_put(&s->refcount, sas_device_free);
+}
+
/**
* struct _raid_device - raid volume link list
* @list: sas device list
* @delayed_tr_list: target reset link list
* @delayed_tr_volume_list: volume target reset link list
* @@temp_sensors_count: flag to carry the number of temperature sensors
+ * @pci_access_mutex: Mutex to synchronize ioctl,sysfs show path and
+ * pci resource handling. PCI resource freeing will lead to free
+ * vital hardware/memory resource, which might be in use by cli/sysfs
+ * path functions resulting in Null pointer reference followed by kernel
+ * crash. To avoid the above race condition we use mutex syncrhonization
+ * which ensures the syncrhonization between cli/sysfs_show path
*/
struct MPT2SAS_ADAPTER {
struct list_head list;
u8 mfg_pg10_hide_flag;
u8 hide_drives;
+ struct mutex pci_access_mutex;
};
typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
/* base shared API */
extern struct list_head mpt2sas_ioc_list;
+/* spinlock on list operations over IOCs
+ * Case: when multiple warpdrive cards(IOCs) are in use
+ * Each IOC will added to the ioc list stucture on initialization.
+ * Watchdog threads run at regular intervals to check IOC for any
+ * fault conditions which will trigger the dead_ioc thread to
+ * deallocate pci resource, resulting deleting the IOC netry from list,
+ * this deletion need to protected by spinlock to enusre that
+ * ioc removal is syncrhonized, if not synchronized it might lead to
+ * list_del corruption as the ioc list is traversed in cli path
+ */
+extern spinlock_t gioc_lock;
void mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc);
void mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc);
u16 handle);
struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER
*ioc, u64 sas_address);
-struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address(
+struct _sas_device *mpt2sas_get_sdev_by_addr(
+ struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
+struct _sas_device *__mpt2sas_get_sdev_by_addr(
struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
void mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc);
-
void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
/* config shared API */
_ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp)
{
struct MPT2SAS_ADAPTER *ioc;
-
+ /* global ioc lock to protect controller on list operations */
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
if (ioc->id != ioc_number)
continue;
+ spin_unlock(&gioc_lock);
*iocpp = ioc;
return ioc_number;
}
+ spin_unlock(&gioc_lock);
*iocpp = NULL;
return -1;
}
poll_wait(filep, &ctl_poll_wait, wait);
+ /* global ioc lock to protect controller on list operations */
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
- if (ioc->aen_event_read_flag)
+ if (ioc->aen_event_read_flag) {
+ spin_unlock(&gioc_lock);
return POLLIN | POLLRDNORM;
+ }
}
+ spin_unlock(&gioc_lock);
return 0;
}
if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
+ /* pci_access_mutex lock acquired by ioctl path */
+ mutex_lock(&ioc->pci_access_mutex);
if (ioc->shost_recovery || ioc->pci_error_recovery ||
- ioc->is_driver_loading)
- return -EAGAIN;
+ ioc->is_driver_loading || ioc->remove_host) {
+ ret = -EAGAIN;
+ goto out_unlock_pciaccess;
+ }
state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
if (state == NON_BLOCKING) {
- if (!mutex_trylock(&ioc->ctl_cmds.mutex))
- return -EAGAIN;
+ if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
+ ret = -EAGAIN;
+ goto out_unlock_pciaccess;
+ }
} else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
- return -ERESTARTSYS;
+ ret = -ERESTARTSYS;
+ goto out_unlock_pciaccess;
}
switch (cmd) {
}
mutex_unlock(&ioc->ctl_cmds.mutex);
+out_unlock_pciaccess:
+ mutex_unlock(&ioc->pci_access_mutex);
return ret;
}
"warpdrive\n", ioc->name, __func__);
goto out;
}
+ /* pci_access_mutex lock acquired by sysfs show path */
+ mutex_lock(&ioc->pci_access_mutex);
+ if (ioc->pci_error_recovery || ioc->remove_host) {
+ mutex_unlock(&ioc->pci_access_mutex);
+ return 0;
+ }
/* allocate upto GPIOVal 36 entries */
sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
out:
kfree(io_unit_pg3);
+ mutex_unlock(&ioc->pci_access_mutex);
return rc;
}
static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
/* global parameters */
LIST_HEAD(mpt2sas_ioc_list);
-
+/* global ioc lock for list operations */
+DEFINE_SPINLOCK(gioc_lock);
/* local parameters */
static u8 scsi_io_cb_idx = -1;
static u8 tm_cb_idx = -1;
u8 VP_ID;
u8 ignore;
u16 event;
+ struct kref refcount;
char event_data[0] __aligned(4);
};
+static void fw_event_work_free(struct kref *r)
+{
+ kfree(container_of(r, struct fw_event_work, refcount));
+}
+
+static void fw_event_work_get(struct fw_event_work *fw_work)
+{
+ kref_get(&fw_work->refcount);
+}
+
+static void fw_event_work_put(struct fw_event_work *fw_work)
+{
+ kref_put(&fw_work->refcount, fw_event_work_free);
+}
+
+static struct fw_event_work *alloc_fw_event_work(int len)
+{
+ struct fw_event_work *fw_event;
+
+ fw_event = kzalloc(sizeof(*fw_event) + len, GFP_ATOMIC);
+ if (!fw_event)
+ return NULL;
+
+ kref_init(&fw_event->refcount);
+ return fw_event;
+}
+
/* raid transport support */
static struct raid_template *mpt2sas_raid_template;
return ret;
printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
ioc->logging_level = logging_level;
+ spin_unlock(&gioc_lock);
return 0;
}
module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
}
}
+static struct _sas_device *
+__mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc,
+ struct MPT2SAS_TARGET *tgt_priv)
+{
+ struct _sas_device *ret;
+
+ assert_spin_locked(&ioc->sas_device_lock);
+
+ ret = tgt_priv->sdev;
+ if (ret)
+ sas_device_get(ret);
+
+ return ret;
+}
+
+static struct _sas_device *
+mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc,
+ struct MPT2SAS_TARGET *tgt_priv)
+{
+ struct _sas_device *ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ ret = __mpt2sas_get_sdev_from_target(ioc, tgt_priv);
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ return ret;
+}
+
+
+struct _sas_device *
+__mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc,
+ u64 sas_address)
+{
+ struct _sas_device *sas_device;
+
+ assert_spin_locked(&ioc->sas_device_lock);
+
+ list_for_each_entry(sas_device, &ioc->sas_device_list, list)
+ if (sas_device->sas_address == sas_address)
+ goto found_device;
+
+ list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
+ if (sas_device->sas_address == sas_address)
+ goto found_device;
+
+ return NULL;
+
+found_device:
+ sas_device_get(sas_device);
+ return sas_device;
+}
+
/**
- * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
+ * mpt2sas_get_sdev_by_addr - sas device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_device_lock
* object.
*/
struct _sas_device *
-mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
+mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
+ sas_address);
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ return sas_device;
+}
+
+static struct _sas_device *
+__mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+{
+ struct _sas_device *sas_device;
+
+ assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
- if (sas_device->sas_address == sas_address)
- return sas_device;
+ if (sas_device->handle == handle)
+ goto found_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
- if (sas_device->sas_address == sas_address)
- return sas_device;
+ if (sas_device->handle == handle)
+ goto found_device;
return NULL;
+
+found_device:
+ sas_device_get(sas_device);
+ return sas_device;
}
/**
- * _scsih_sas_device_find_by_handle - sas device search
+ * mpt2sas_get_sdev_by_handle - sas device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
* object.
*/
static struct _sas_device *
-_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
+ unsigned long flags;
- list_for_each_entry(sas_device, &ioc->sas_device_list, list)
- if (sas_device->handle == handle)
- return sas_device;
-
- list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
- if (sas_device->handle == handle)
- return sas_device;
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return NULL;
+ return sas_device;
}
/**
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
- * Removing object and freeing associated memory from the ioc->sas_device_list.
+ * If sas_device is on the list, remove it and decrement its reference count.
*/
static void
_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
if (!sas_device)
return;
+ /*
+ * The lock serializes access to the list, but we still need to verify
+ * that nobody removed the entry while we were waiting on the lock.
+ */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- list_del(&sas_device->list);
- kfree(sas_device);
+ if (!list_empty(&sas_device->list)) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
_scsih_determine_boot_device(ioc, sas_device, 0);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
goto not_sata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
goto not_sata;
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_device_priv_data->sas_target->sas_address);
- if (sas_device && sas_device->device_info &
- MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
- max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
+ sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data);
+ if (sas_device) {
+ if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
+ max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
+
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
not_sata:
/* sas/sata devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
rphy->identify.sas_address);
if (sas_device) {
sas_target_priv_data->handle = sas_device->handle;
sas_target_priv_data->sas_address = sas_device->sas_address;
+ sas_target_priv_data->sdev = sas_device;
sas_device->starget = starget;
sas_device->id = starget->id;
sas_device->channel = starget->channel;
if (test_bit(sas_device->handle, ioc->pd_handles))
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
+
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- rphy->identify.sas_address);
+ sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
(sas_device->channel == starget->channel))
sas_device->starget = NULL;
+ if (sas_device) {
+ /*
+ * Corresponding get() is in _scsih_target_alloc()
+ */
+ sas_target_priv_data->sdev = NULL;
+ sas_device_put(sas_device);
+
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
out:
if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_target_priv_data->sas_address);
if (sas_device && (sas_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
__func__, __LINE__);
sas_device->starget = starget;
}
+
+ if (sas_device)
+ sas_device_put(sas_device);
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_target_priv_data->sas_address);
+ sas_device = __mpt2sas_get_sdev_from_target(ioc,
+ sas_target_priv_data);
if (sas_device && !sas_target_priv_data->num_luns)
sas_device->starget = NULL;
+
+ if (sas_device)
+ sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_device_priv_data->sas_target->sas_address);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
(unsigned long long) sas_device->enclosure_logical_id,
sas_device->slot);
+ sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!ssp_target)
_scsih_display_sata_capabilities(ioc, handle, sdev);
-
_scsih_change_queue_depth(sdev, qdepth);
if (ssp_target) {
sas_read_port_mode_page(sdev);
_scsih_enable_tlr(ioc, sdev);
}
+
return 0;
}
device_str, (unsigned long long)priv_target->sas_address);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- priv_target->sas_address);
+ sas_device = __mpt2sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
if (priv_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
"enclosure_logical_id(0x%016llx), slot(%d)\n",
(unsigned long long)sas_device->enclosure_logical_id,
sas_device->slot);
+
+ sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
- struct _sas_device *sas_device;
- unsigned long flags;
+ struct _sas_device *sas_device = NULL;
u16 handle;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
+ struct MPT2SAS_TARGET *target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget, "attempting device reset! "
"scmd(%p)\n", scmd);
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc,
- sas_device_priv_data->sas_target->handle);
+ sas_device = mpt2sas_get_sdev_from_target(ioc,
+ target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
out:
sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+
+ if (sas_device)
+ sas_device_put(sas_device);
+
return r;
}
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
- struct _sas_device *sas_device;
- unsigned long flags;
+ struct _sas_device *sas_device = NULL;
u16 handle;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
+ struct MPT2SAS_TARGET *target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget, "attempting target reset! "
"scmd(%p)\n", scmd);
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc,
- sas_device_priv_data->sas_target->handle);
+ sas_device = mpt2sas_get_sdev_from_target(ioc,
+ target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
out:
starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+
+ if (sas_device)
+ sas_device_put(sas_device);
+
return r;
}
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
+ fw_event_work_get(fw_event);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
+ fw_event_work_get(fw_event);
queue_delayed_work(ioc->firmware_event_thread,
&fw_event->delayed_work, 0);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
- * _scsih_fw_event_free - delete fw_event
+ * _scsih_fw_event_del_from_list - delete fw_event from the list
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
- * This removes firmware event object from link list, frees associated memory.
+ * If the fw_event is on the fw_event_list, remove it and do a put.
*
* Return nothing.
*/
static void
-_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
+_scsih_fw_event_del_from_list(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
*fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
- list_del(&fw_event->list);
- kfree(fw_event);
+ if (!list_empty(&fw_event->list)) {
+ list_del_init(&fw_event->list);
+ fw_event_work_put(fw_event);
+ }
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
-
/**
* _scsih_error_recovery_delete_devices - remove devices not responding
* @ioc: per adapter object
if (ioc->is_driver_loading)
return;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
}
/**
{
struct fw_event_work *fw_event;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
+}
+
+static struct fw_event_work *dequeue_next_fw_event(struct MPT2SAS_ADAPTER *ioc)
+{
+ unsigned long flags;
+ struct fw_event_work *fw_event = NULL;
+
+ spin_lock_irqsave(&ioc->fw_event_lock, flags);
+ if (!list_empty(&ioc->fw_event_list)) {
+ fw_event = list_first_entry(&ioc->fw_event_list,
+ struct fw_event_work, list);
+ list_del_init(&fw_event->list);
+ }
+ spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+
+ return fw_event;
}
/**
static void
_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
{
- struct fw_event_work *fw_event, *next;
+ struct fw_event_work *fw_event;
if (list_empty(&ioc->fw_event_list) ||
!ioc->firmware_event_thread || in_interrupt())
return;
- list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
- if (cancel_delayed_work_sync(&fw_event->delayed_work)) {
- _scsih_fw_event_free(ioc, fw_event);
- continue;
- }
+ while ((fw_event = dequeue_next_fw_event(ioc))) {
+ /*
+ * Wait on the fw_event to complete. If this returns 1, then
+ * the event was never executed, and we need a put for the
+ * reference the delayed_work had on the fw_event.
+ *
+ * If it did execute, we wait for it to finish, and the put will
+ * happen from _firmware_event_work()
+ */
+ if (cancel_delayed_work_sync(&fw_event->delayed_work))
+ fw_event_work_put(fw_event);
+
+ fw_event_work_put(fw_event);
}
}
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
- if (mpt2sas_port->remote_identify.device_type ==
- SAS_END_DEVICE) {
+ if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device =
- mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- mpt2sas_port->remote_identify.sas_address);
- if (sas_device)
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
+ mpt2sas_port->remote_identify.sas_address);
+ if (sas_device) {
set_bit(sas_device->handle,
- ioc->blocking_handles);
+ ioc->blocking_handles);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
- struct _sas_device *sas_device;
+ struct _sas_device *sas_device = NULL;
struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
u64 sas_address = 0;
unsigned long flags;
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (sas_device && sas_device->starget &&
sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
- return;
+ goto out;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
"DELAYED:tr:handle(0x%04x), (open)\n",
ioc->name, handle));
- return;
+ goto out;
}
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpt2sas_base_put_smid_hi_priority(ioc, smid);
+out:
+ if (sas_device)
+ sas_device_put(sas_device);
}
char *desc_scsi_state = ioc->tmp_string;
u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
struct _sas_device *sas_device = NULL;
- unsigned long flags;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT2SAS_TARGET *priv_target = starget->hostdata;
char *device_str = NULL;
printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
device_str, (unsigned long long)priv_target->sas_address);
} else {
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- priv_target->sas_address);
+ sas_device = mpt2sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
"phy(%d)\n", ioc->name, sas_device->sas_address,
"\tenclosure_logical_id(0x%016llx), slot(%d)\n",
ioc->name, sas_device->enclosure_logical_id,
sas_device->slot);
+
+ sas_device_put(sas_device);
}
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
Mpi2SepRequest_t mpi_request;
struct _sas_device *sas_device;
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
if (!sas_device)
return;
&mpi_request)) != 0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
- return;
+ goto out;
}
sas_device->pfa_led_on = 1;
"enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
- return;
+ goto out;
}
+out:
+ sas_device_put(sas_device);
}
/**
{
struct fw_event_work *fw_event;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT2SAS_TURN_ON_PFA_LED;
fw_event->device_handle = handle;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
}
/**
/* only handle non-raid devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (!sas_device) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
+ goto out_unlock;
}
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
- ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)))
+ goto out_unlock;
+
starget_printk(KERN_WARNING, starget, "predicted fault\n");
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!event_reply) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
- return;
+ goto out;
}
event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
mpt2sas_ctl_add_to_event_log(ioc, event_reply);
kfree(event_reply);
+out:
+ if (sas_device)
+ sas_device_put(sas_device);
+ return;
+
+out_unlock:
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+ goto out;
}
/**
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_address);
if (!sas_device) {
printk(MPT2SAS_ERR_FMT "device is not present "
"handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
+ goto out_unlock;
}
if (unlikely(sas_device->handle != handle)) {
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
printk(MPT2SAS_ERR_FMT "device is not present "
"handle(0x%04x), flags!!!\n", ioc->name, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
+ goto out_unlock;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
- sas_device_pg0.AccessStatus)) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ sas_device_pg0.AccessStatus))
+ goto out_unlock;
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_ublock_io_device(ioc, sas_address);
+ if (sas_device)
+ sas_device_put(sas_device);
+ return;
+out_unlock:
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+ if (sas_device)
+ sas_device_put(sas_device);
}
/**
u32 ioc_status;
__le64 sas_address;
u32 device_info;
- unsigned long flags;
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
return -1;
}
-
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = mpt2sas_get_sdev_by_addr(ioc,
sas_address);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ if (sas_device) {
+ sas_device_put(sas_device);
return 0;
+ }
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
return -1;
}
+ kref_init(&sas_device->refcount);
sas_device->handle = handle;
if (_scsih_get_sas_address(ioc, le16_to_cpu
(sas_device_pg0.ParentDevHandle),
else
_scsih_sas_device_add(ioc, sas_device);
+ sas_device_put(sas_device);
return 0;
}
"handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
sas_device->handle, (unsigned long long)
sas_device->sas_address));
- kfree(sas_device);
}
/**
* _scsih_device_remove_by_handle - removing device object by handle
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- if (sas_device)
- list_del(&sas_device->list);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+
+ if (sas_device) {
_scsih_remove_device(ioc, sas_device);
+ sas_device_put(sas_device);
+ }
}
/**
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_address);
- if (sas_device)
- list_del(&sas_device->list);
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_address);
+ if (sas_device) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+
+ if (sas_device) {
_scsih_remove_device(ioc, sas_device);
+ sas_device_put(sas_device);
+ }
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(event_data->SASAddress);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_address);
- if (!sas_device || !sas_device->starget) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ if (!sas_device || !sas_device->starget)
+ goto out;
target_priv_data = sas_device->starget->hostdata;
- if (!target_priv_data) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ if (!target_priv_data)
+ goto out;
if (event_data->ReasonCode ==
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
+
+out:
+ if (sas_device)
+ sas_device_put(sas_device);
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
/* exposing raid component */
if (starget)
starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
+
+ sas_device_put(sas_device);
}
/**
&volume_wwid);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
set_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
/* hiding raid component */
if (starget)
starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
+
+ sas_device_put(sas_device);
}
/**
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
- unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
set_bit(handle, ioc->pd_handles);
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ sas_device_put(sas_device);
return;
+ }
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
u16 handle, parent_handle;
u32 state;
struct _sas_device *sas_device;
- unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
if (!ioc->is_warpdrive)
set_bit(handle, ioc->pd_handles);
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
-
- if (sas_device)
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ sas_device_put(sas_device);
return;
+ }
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
struct _raid_device *raid_device, *raid_device_next;
struct list_head tmp_list;
unsigned long flags;
+ LIST_HEAD(head);
printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
ioc->name);
/* removing unresponding end devices */
printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n",
ioc->name);
+
+ /*
+ * Iterate, pulling off devices marked as non-responding. We become the
+ * owner for the reference the list had on any object we prune.
+ */
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry_safe(sas_device, sas_device_next,
- &ioc->sas_device_list, list) {
+ &ioc->sas_device_list, list) {
if (!sas_device->responding)
- mpt2sas_device_remove_by_sas_address(ioc,
- sas_device->sas_address);
+ list_move_tail(&sas_device->list, &head);
else
sas_device->responding = 0;
}
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ /*
+ * Now, uninitialize and remove the unresponding devices we pruned.
+ */
+ list_for_each_entry_safe(sas_device, sas_device_next, &head, list) {
+ _scsih_remove_device(ioc, sas_device);
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
/* removing unresponding volumes */
if (ioc->ir_firmware) {
}
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ sas_device_put(sas_device);
continue;
+ }
if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle) != 0)
if (!(_scsih_is_end_device(
le32_to_cpu(sas_device_pg0.DeviceInfo))))
continue;
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = mpt2sas_get_sdev_by_addr(ioc,
le64_to_cpu(sas_device_pg0.SASAddress));
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ if (sas_device) {
+ sas_device_put(sas_device);
continue;
+ }
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: "
struct fw_event_work, delayed_work.work);
struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
+ _scsih_fw_event_del_from_list(ioc, fw_event);
+
/* the queue is being flushed so ignore this event */
- if (ioc->remove_host ||
- ioc->pci_error_recovery) {
- _scsih_fw_event_free(ioc, fw_event);
+ if (ioc->remove_host || ioc->pci_error_recovery) {
+ fw_event_work_put(fw_event);
return;
}
switch (fw_event->event) {
case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
- while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
+ while (scsi_host_in_recovery(ioc->shost) ||
+ ioc->shost_recovery) {
+ /*
+ * If we're unloading, bail. Otherwise, this can become
+ * an infinite loop.
+ */
+ if (ioc->remove_host)
+ goto out;
+
ssleep(1);
+ }
_scsih_remove_unresponding_sas_devices(ioc);
_scsih_scan_for_devices_after_reset(ioc);
break;
_scsih_sas_ir_operation_status_event(ioc, fw_event);
break;
}
- _scsih_fw_event_free(ioc, fw_event);
+out:
+ fw_event_work_put(fw_event);
}
/**
}
sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
- fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(sz);
if (!fw_event) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
fw_event->VP_ID = mpi_reply->VP_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
return;
}
sas_remove_host(shost);
scsi_remove_host(shost);
mpt2sas_base_detach(ioc);
+ spin_lock(&gioc_lock);
list_del(&ioc->list);
+ spin_unlock(&gioc_lock);
scsi_host_put(shost);
}
}
}
+static struct _sas_device *get_next_sas_device(struct MPT2SAS_ADAPTER *ioc)
+{
+ struct _sas_device *sas_device = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ if (!list_empty(&ioc->sas_device_init_list)) {
+ sas_device = list_first_entry(&ioc->sas_device_init_list,
+ struct _sas_device, list);
+ sas_device_get(sas_device);
+ }
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ return sas_device;
+}
+
+static void sas_device_make_active(struct MPT2SAS_ADAPTER *ioc,
+ struct _sas_device *sas_device)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+
+ /*
+ * Since we dropped the lock during the call to port_add(), we need to
+ * be careful here that somebody else didn't move or delete this item
+ * while we were busy with other things.
+ *
+ * If it was on the list, we need a put() for the reference the list
+ * had. Either way, we need a get() for the destination list.
+ */
+ if (!list_empty(&sas_device->list)) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
+
+ sas_device_get(sas_device);
+ list_add_tail(&sas_device->list, &ioc->sas_device_list);
+
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+}
+
/**
* _scsih_probe_sas - reporting sas devices to sas transport
* @ioc: per adapter object
static void
_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
{
- struct _sas_device *sas_device, *next;
- unsigned long flags;
-
- /* SAS Device List */
- list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
- list) {
+ struct _sas_device *sas_device;
- if (ioc->hide_drives)
- continue;
+ if (ioc->hide_drives)
+ return;
+ while ((sas_device = get_next_sas_device(ioc))) {
if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
- sas_device->sas_address_parent)) {
- list_del(&sas_device->list);
- kfree(sas_device);
+ sas_device->sas_address_parent)) {
+ _scsih_sas_device_remove(ioc, sas_device);
+ sas_device_put(sas_device);
continue;
} else if (!sas_device->starget) {
if (!ioc->is_driver_loading) {
mpt2sas_transport_port_remove(ioc,
- sas_device->sas_address,
- sas_device->sas_address_parent);
- list_del(&sas_device->list);
- kfree(sas_device);
+ sas_device->sas_address,
+ sas_device->sas_address_parent);
+ _scsih_sas_device_remove(ioc, sas_device);
+ sas_device_put(sas_device);
continue;
}
}
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- list_move_tail(&sas_device->list, &ioc->sas_device_list);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ sas_device_make_active(ioc, sas_device);
+ sas_device_put(sas_device);
}
}
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
INIT_LIST_HEAD(&ioc->list);
+ spin_lock(&gioc_lock);
list_add_tail(&ioc->list, &mpt2sas_ioc_list);
+ spin_unlock(&gioc_lock);
ioc->shost = shost;
ioc->id = mpt_ids++;
sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
/* misc semaphores and spin locks */
mutex_init(&ioc->reset_in_progress_mutex);
+ /* initializing pci_access_mutex lock */
+ mutex_init(&ioc->pci_access_mutex);
spin_lock_init(&ioc->ioc_reset_in_progress_lock);
spin_lock_init(&ioc->scsi_lookup_lock);
spin_lock_init(&ioc->sas_device_lock);
out_attach_fail:
destroy_workqueue(ioc->firmware_event_thread);
out_thread_fail:
+ spin_lock(&gioc_lock);
list_del(&ioc->list);
+ spin_unlock(&gioc_lock);
scsi_host_put(shost);
return rv;
}
int rc;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
rphy->identify.sas_address);
if (sas_device) {
*identifier = sas_device->enclosure_logical_id;
rc = 0;
+ sas_device_put(sas_device);
} else {
*identifier = 0;
rc = -ENXIO;
}
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return rc;
}
int rc;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
rphy->identify.sas_address);
- if (sas_device)
+ if (sas_device) {
rc = sas_device->slot;
- else
+ sas_device_put(sas_device);
+ } else {
rc = -ENXIO;
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return rc;
}
* scatter/gather formats.
* Creation Date: June 21, 2006
*
- * mpi2.h Version: 02.00.31
+ * mpi2.h Version: 02.00.35
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
* Added MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET.
* 04-09-13 02.00.30 Bumped MPI2_HEADER_VERSION_UNIT.
* 04-17-13 02.00.31 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 08-19-13 02.00.32 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 12-05-13 02.00.33 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 01-08-14 02.00.34 Bumped MPI2_HEADER_VERSION_UNIT
+ * 06-13-14 02.00.35 Bumped MPI2_HEADER_VERSION_UNIT.
* --------------------------------------------------------------------------
*/
#define MPI2_VERSION_02_05 (0x0205)
/*Unit and Dev versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT (0x1F)
+#define MPI2_HEADER_VERSION_UNIT (0x23)
#define MPI2_HEADER_VERSION_DEV (0x00)
#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
#define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
* Title: MPI Configuration messages and pages
* Creation Date: November 10, 2006
*
- * mpi2_cnfg.h Version: 02.00.26
+ * mpi2_cnfg.h Version: 02.00.29
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
* match the specification.
* 08-19-13 02.00.26 Added reserved words to MPI2_CONFIG_PAGE_IO_UNIT_7 for
* future use.
+ * 12-05-13 02.00.27 Added MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL for
+ * MPI2_CONFIG_PAGE_MAN_7.
+ * Added EnclosureLevel and ConnectorName fields to
+ * MPI2_CONFIG_PAGE_SAS_DEV_0.
+ * Added MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID for
+ * MPI2_CONFIG_PAGE_SAS_DEV_0.
+ * Added EnclosureLevel field to
+ * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
+ * Added MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID for
+ * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
+ * 01-08-14 02.00.28 Added more defines for the BiosOptions field of
+ * MPI2_CONFIG_PAGE_BIOS_1.
+ * 06-13-14 02.00.29 Added SSUTimeout field to MPI2_CONFIG_PAGE_BIOS_1, and
+ * more defines for the BiosOptions field..
* --------------------------------------------------------------------------
*/
#define MPI2_MANUFACTURING7_PAGEVERSION (0x01)
/*defines for the Flags field */
+#define MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL (0x00000008)
#define MPI2_MANPAGE7_FLAG_EVENTREPLAY_SLOT_ORDER (0x00000002)
#define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO (0x00000001)
MPI2_CONFIG_PAGE_HEADER Header; /*0x00 */
U32 BiosOptions; /*0x04 */
U32 IOCSettings; /*0x08 */
- U32 Reserved1; /*0x0C */
+ U8 SSUTimeout; /*0x0C */
+ U8 Reserved1; /*0x0D */
+ U16 Reserved2; /*0x0E */
U32 DeviceSettings; /*0x10 */
U16 NumberOfDevices; /*0x14 */
U16 UEFIVersion; /*0x16 */
*PTR_MPI2_CONFIG_PAGE_BIOS_1,
Mpi2BiosPage1_t, *pMpi2BiosPage1_t;
-#define MPI2_BIOSPAGE1_PAGEVERSION (0x05)
+#define MPI2_BIOSPAGE1_PAGEVERSION (0x07)
/*values for BIOS Page 1 BiosOptions field */
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_MASK (0x00003800)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_PBDHL (0x00000000)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_ENCSLOSURE (0x00000800)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_LWWID (0x00001000)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_PSENS (0x00001800)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_ESPHY (0x00002000)
+
+#define MPI2_BIOSPAGE1_OPTIONS_X86_DISABLE_BIOS (0x00000400)
+
+#define MPI2_BIOSPAGE1_OPTIONS_MASK_REGISTRATION_UEFI_BSD (0x00000300)
+#define MPI2_BIOSPAGE1_OPTIONS_USE_BIT0_REGISTRATION_UEFI_BSD (0x00000000)
+#define MPI2_BIOSPAGE1_OPTIONS_FULL_REGISTRATION_UEFI_BSD (0x00000100)
+#define MPI2_BIOSPAGE1_OPTIONS_ADAPTER_REGISTRATION_UEFI_BSD (0x00000200)
+#define MPI2_BIOSPAGE1_OPTIONS_DISABLE_REGISTRATION_UEFI_BSD (0x00000300)
+
#define MPI2_BIOSPAGE1_OPTIONS_MASK_OEM_ID (0x000000F0)
#define MPI2_BIOSPAGE1_OPTIONS_LSI_OEM_ID (0x00000000)
U8
ControlGroup; /*0x2E */
U8
- Reserved1; /*0x2F */
+ EnclosureLevel; /*0x2F */
U32
- Reserved2; /*0x30 */
+ ConnectorName[4]; /*0x30 */
U32
Reserved3; /*0x34 */
} MPI2_CONFIG_PAGE_SAS_DEV_0,
Mpi2SasDevicePage0_t,
*pMpi2SasDevicePage0_t;
-#define MPI2_SASDEVICE0_PAGEVERSION (0x08)
+#define MPI2_SASDEVICE0_PAGEVERSION (0x09)
/*values for SAS Device Page 0 AccessStatus field */
#define MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS (0x00)
#define MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED (0x0020)
#define MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED (0x0010)
#define MPI2_SAS_DEVICE0_FLAGS_PORT_SELECTOR_ATTACH (0x0008)
+#define MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID (0x0002)
#define MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT (0x0001)
NumSlots; /*0x18 */
U16
StartSlot; /*0x1A */
- U16
+ U8
Reserved2; /*0x1C */
+ U8
+ EnclosureLevel; /*0x1D */
U16
SEPDevHandle; /*0x1E */
U32
*PTR_MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0,
Mpi2SasEnclosurePage0_t, *pMpi2SasEnclosurePage0_t;
-#define MPI2_SASENCLOSURE0_PAGEVERSION (0x03)
+#define MPI2_SASENCLOSURE0_PAGEVERSION (0x04)
/*values for SAS Enclosure Page 0 Flags field */
+#define MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID (0x0010)
#define MPI2_SAS_ENCLS0_FLAGS_MNG_MASK (0x000F)
#define MPI2_SAS_ENCLS0_FLAGS_MNG_UNKNOWN (0x0000)
#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SES (0x0001)
* Title: MPI IOC, Port, Event, FW Download, and FW Upload messages
* Creation Date: October 11, 2006
*
- * mpi2_ioc.h Version: 02.00.23
+ * mpi2_ioc.h Version: 02.00.24
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
* Added MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE.
* Added MPI2_FW_DOWNLOAD_ITYPE_PUBLIC_KEY.
* Added Encrypted Hash Extended Image.
+ * 12-05-13 02.00.24 Added MPI25_HASH_IMAGE_TYPE_BIOS.
* --------------------------------------------------------------------------
*/
/* values for HashImageType */
#define MPI25_HASH_IMAGE_TYPE_UNUSED (0x00)
#define MPI25_HASH_IMAGE_TYPE_FIRMWARE (0x01)
+#define MPI25_HASH_IMAGE_TYPE_BIOS (0x02)
/* values for HashAlgorithm */
#define MPI25_HASH_ALGORITHM_UNUSED (0x00)
* Title: MPI diagnostic tool structures and definitions
* Creation Date: March 26, 2007
*
- * mpi2_tool.h Version: 02.00.11
+ * mpi2_tool.h Version: 02.00.12
*
* Version History
* ---------------
* 07-26-12 02.00.10 Modified MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST so that
* it uses MPI Chain SGE as well as MPI Simple SGE.
* 08-19-13 02.00.11 Added MPI2_TOOLBOX_TEXT_DISPLAY_TOOL and related info.
+ * 01-08-14 02.00.12 Added MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC.
* --------------------------------------------------------------------------
*/
#define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES (0x20000000)
#define MPI2_TOOLBOX_CLEAN_FW_CURRENT (0x10000000)
#define MPI2_TOOLBOX_CLEAN_FW_BACKUP (0x08000000)
+#define MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC (0x04000000)
#define MPI2_TOOLBOX_CLEAN_MEGARAID (0x02000000)
#define MPI2_TOOLBOX_CLEAN_INITIALIZATION (0x01000000)
#define MPI2_TOOLBOX_CLEAN_FLASH (0x00000004)
module_param(msix_disable, int, 0);
MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
-static int max_msix_vectors = 8;
+static int max_msix_vectors = -1;
module_param(max_msix_vectors, int, 0);
MODULE_PARM_DESC(max_msix_vectors,
- " max msix vectors - (default=8)");
+ " max msix vectors");
static int mpt3sas_fwfault_debug;
MODULE_PARM_DESC(mpt3sas_fwfault_debug,
}
wmb();
- writel(reply_q->reply_post_host_index | (msix_index <<
- MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex);
+
+ /* Update Reply Post Host Index.
+ * For those HBA's which support combined reply queue feature
+ * 1. Get the correct Supplemental Reply Post Host Index Register.
+ * i.e. (msix_index / 8)th entry from Supplemental Reply Post Host
+ * Index Register address bank i.e replyPostRegisterIndex[],
+ * 2. Then update this register with new reply host index value
+ * in ReplyPostIndex field and the MSIxIndex field with
+ * msix_index value reduced to a value between 0 and 7,
+ * using a modulo 8 operation. Since each Supplemental Reply Post
+ * Host Index Register supports 8 MSI-X vectors.
+ *
+ * For other HBA's just update the Reply Post Host Index register with
+ * new reply host index value in ReplyPostIndex Field and msix_index
+ * value in MSIxIndex field.
+ */
+ if (ioc->msix96_vector)
+ writel(reply_q->reply_post_host_index | ((msix_index & 7) <<
+ MPI2_RPHI_MSIX_INDEX_SHIFT),
+ ioc->replyPostRegisterIndex[msix_index/8]);
+ else
+ writel(reply_q->reply_post_host_index | (msix_index <<
+ MPI2_RPHI_MSIX_INDEX_SHIFT),
+ &ioc->chip->ReplyPostHostIndex);
atomic_dec(&reply_q->busy);
return IRQ_HANDLED;
}
sg_scmd = scsi_sglist(scmd);
sges_left = scsi_dma_map(scmd);
- if (!sges_left) {
+ if (sges_left < 0) {
sdev_printk(KERN_ERR, scmd->device,
"pci_map_sg failed: request for %d bytes!\n",
scsi_bufflen(scmd));
fill_in_last_segment:
/* fill the last segment */
- while (sges_left) {
+ while (sges_left > 0) {
if (sges_left == 1)
_base_add_sg_single_ieee(sg_local,
simple_sgl_flags_last, 0, sg_dma_len(sg_scmd),
pci_read_config_word(ioc->pdev, base + 2, &message_control);
ioc->msix_vector_count = (message_control & 0x3FF) + 1;
- if (ioc->msix_vector_count > 8)
- ioc->msix_vector_count = 8;
dinitprintk(ioc, pr_info(MPT3SAS_FMT
"msix is supported, vector_count(%d)\n",
ioc->name, ioc->msix_vector_count));
return r;
}
+/**
+ * mpt3sas_base_unmap_resources - free controller resources
+ * @ioc: per adapter object
+ */
+void
+mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
+{
+ struct pci_dev *pdev = ioc->pdev;
+
+ dexitprintk(ioc, printk(MPT3SAS_FMT "%s\n",
+ ioc->name, __func__));
+
+ _base_free_irq(ioc);
+ _base_disable_msix(ioc);
+
+ if (ioc->msix96_vector)
+ kfree(ioc->replyPostRegisterIndex);
+
+ if (ioc->chip_phys) {
+ iounmap(ioc->chip);
+ ioc->chip_phys = 0;
+ }
+
+ if (pci_is_enabled(pdev)) {
+ pci_release_selected_regions(ioc->pdev, ioc->bars);
+ pci_disable_pcie_error_reporting(pdev);
+ pci_disable_device(pdev);
+ }
+}
+
/**
* mpt3sas_base_map_resources - map in controller resources (io/irq/memap)
* @ioc: per adapter object
if (r)
goto out_fail;
+ /* Use the Combined reply queue feature only for SAS3 C0 & higher
+ * revision HBAs and also only when reply queue count is greater than 8
+ */
+ if (ioc->msix96_vector && ioc->reply_queue_count > 8) {
+ /* Determine the Supplemental Reply Post Host Index Registers
+ * Addresse. Supplemental Reply Post Host Index Registers
+ * starts at offset MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET and
+ * each register is at offset bytes of
+ * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET from previous one.
+ */
+ ioc->replyPostRegisterIndex = kcalloc(
+ MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT,
+ sizeof(resource_size_t *), GFP_KERNEL);
+ if (!ioc->replyPostRegisterIndex) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "allocation for reply Post Register Index failed!!!\n",
+ ioc->name));
+ r = -ENOMEM;
+ goto out_fail;
+ }
+
+ for (i = 0; i < MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT; i++) {
+ ioc->replyPostRegisterIndex[i] = (resource_size_t *)
+ ((u8 *)&ioc->chip->Doorbell +
+ MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET +
+ (i * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET));
+ }
+ } else
+ ioc->msix96_vector = 0;
+
list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
pr_info(MPT3SAS_FMT "%s: IRQ %d\n",
reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
return 0;
out_fail:
- if (ioc->chip_phys)
- iounmap(ioc->chip);
- ioc->chip_phys = 0;
- pci_release_selected_regions(ioc->pdev, ioc->bars);
- pci_disable_pcie_error_reporting(pdev);
- pci_disable_device(pdev);
+ mpt3sas_base_unmap_resources(ioc);
return r;
}
+/**
+ * _base_display_dell_branding - Display branding string
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_dell_branding(struct MPT3SAS_ADAPTER *ioc)
+{
+ if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
+ return;
+
+ switch (ioc->pdev->device) {
+ case MPI25_MFGPAGE_DEVID_SAS3008:
+ switch (ioc->pdev->subsystem_device) {
+ case MPT3SAS_DELL_12G_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_DELL_12G_HBA_BRANDING);
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
+ ioc->pdev->subsystem_device);
+ break;
+ }
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
+ ioc->pdev->subsystem_device);
+ break;
+ }
+}
+
+/**
+ * _base_display_cisco_branding - Display branding string
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_cisco_branding(struct MPT3SAS_ADAPTER *ioc)
+{
+ if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_CISCO)
+ return;
+
+ switch (ioc->pdev->device) {
+ case MPI25_MFGPAGE_DEVID_SAS3008:
+ switch (ioc->pdev->subsystem_device) {
+ case MPT3SAS_CISCO_12G_8E_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_8E_HBA_BRANDING);
+ break;
+ case MPT3SAS_CISCO_12G_8I_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_8I_HBA_BRANDING);
+ break;
+ case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING);
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
+ ioc->name, ioc->pdev->subsystem_device);
+ break;
+ }
+ break;
+ case MPI25_MFGPAGE_DEVID_SAS3108_1:
+ switch (ioc->pdev->subsystem_device) {
+ case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING);
+ break;
+ case MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING);
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
+ ioc->name, ioc->pdev->subsystem_device);
+ break;
+ }
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
+ ioc->name, ioc->pdev->subsystem_device);
+ break;
+ }
+}
+
/**
* _base_display_ioc_capabilities - Disply IOC's capabilities.
* @ioc: per adapter object
bios_version & 0x000000FF);
_base_display_intel_branding(ioc);
+ _base_display_dell_branding(ioc);
+ _base_display_cisco_branding(ioc);
pr_info(MPT3SAS_FMT "Protocol=(", ioc->name);
*
* 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);
+
static int
_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout,
int sleep_flag)
return 0;
}
+/**
+ * _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)
+{
+ u32 ioc_state;
+ int rc;
+
+ dinitprintk(ioc, printk(MPT3SAS_FMT "%s\n", ioc->name,
+ __func__));
+
+ if (ioc->pci_error_recovery) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "%s: host in pci error recovery\n", ioc->name, __func__));
+ return -EFAULT;
+ }
+
+ ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+ dhsprintk(ioc, printk(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n",
+ ioc->name, __func__, ioc_state));
+
+ if (((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) ||
+ (ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
+ return 0;
+
+ if (ioc_state & MPI2_DOORBELL_USED) {
+ dhsprintk(ioc, printk(MPT3SAS_FMT
+ "unexpected doorbell active!\n", ioc->name));
+ goto issue_diag_reset;
+ }
+
+ if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
+ mpt3sas_base_fault_info(ioc, ioc_state &
+ MPI2_DOORBELL_DATA_MASK);
+ goto issue_diag_reset;
+ }
+
+ ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
+ timeout, sleep_flag);
+ if (ioc_state) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "%s: failed going to ready state (ioc_state=0x%x)\n",
+ ioc->name, __func__, ioc_state));
+ return -EFAULT;
+ }
+
+ issue_diag_reset:
+ rc = _base_diag_reset(ioc, sleep_flag);
+ return rc;
+}
+
/**
* _base_get_ioc_facts - obtain ioc facts reply and save in ioc
* @ioc: per adapter object
dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
+ r = _base_wait_for_iocstate(ioc, 10, sleep_flag);
+ if (r) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "%s: failed getting to correct state\n",
+ ioc->name, __func__));
+ return r;
+ }
mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
memset(&mpi_request, 0, mpi_request_sz);
mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
mpi_request.VF_ID = 0; /* TODO */
mpi_request.VP_ID = 0;
- mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
+ mpi_request.MsgVersion = cpu_to_le16(MPI25_VERSION);
mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
if (_base_is_controller_msix_enabled(ioc))
/* initialize reply post host index */
list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
- writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT,
- &ioc->chip->ReplyPostHostIndex);
+ if (ioc->msix96_vector)
+ writel((reply_q->msix_index & 7)<<
+ MPI2_RPHI_MSIX_INDEX_SHIFT,
+ ioc->replyPostRegisterIndex[reply_q->msix_index/8]);
+ else
+ writel(reply_q->msix_index <<
+ MPI2_RPHI_MSIX_INDEX_SHIFT,
+ &ioc->chip->ReplyPostHostIndex);
+
if (!_base_is_controller_msix_enabled(ioc))
goto skip_init_reply_post_host_index;
}
void
mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
{
- struct pci_dev *pdev = ioc->pdev;
-
dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
ioc->shost_recovery = 0;
}
- _base_free_irq(ioc);
- _base_disable_msix(ioc);
-
- if (ioc->chip_phys && ioc->chip)
- iounmap(ioc->chip);
- ioc->chip_phys = 0;
-
- if (pci_is_enabled(pdev)) {
- pci_release_selected_regions(ioc->pdev, ioc->bars);
- pci_disable_pcie_error_reporting(pdev);
- pci_disable_device(pdev);
- }
+ mpt3sas_base_unmap_resources(ioc);
return;
}
{
int r, i;
int cpu_id, last_cpu_id = 0;
+ u8 revision;
dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
goto out_free_resources;
}
+ /* Check whether the controller revision is C0 or above.
+ * only C0 and above revision controllers support 96 MSI-X vectors.
+ */
+ revision = ioc->pdev->revision;
+
+ if ((ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3004 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3008 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_1 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_2 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_5 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_6) &&
+ (revision >= 0x02))
+ ioc->msix96_vector = 1;
+
ioc->rdpq_array_enable_assigned = 0;
ioc->dma_mask = 0;
r = mpt3sas_base_map_resources(ioc);
ioc->build_sg_scmd = &_base_build_sg_scmd_ieee;
ioc->build_sg = &_base_build_sg_ieee;
ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee;
- ioc->mpi25 = 1;
ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t);
/*
#define MPT3SAS_DRIVER_NAME "mpt3sas"
#define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
#define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver"
-#define MPT3SAS_DRIVER_VERSION "04.100.00.00"
-#define MPT3SAS_MAJOR_VERSION 4
+#define MPT3SAS_DRIVER_VERSION "09.100.00.00"
+#define MPT3SAS_MAJOR_VERSION 9
#define MPT3SAS_MINOR_VERSION 100
#define MPT3SAS_BUILD_VERSION 0
#define MPT3SAS_RELEASE_VERSION 00
#define MPT3SAS_INTEL_RS3FC044_SSDID 0x3523
#define MPT3SAS_INTEL_RS3UC080_SSDID 0x3524
+/*
+ * Dell HBA branding
+ */
+#define MPT3SAS_DELL_12G_HBA_BRANDING \
+ "Dell 12Gbps HBA"
+
+/*
+ * Dell HBA SSDIDs
+ */
+#define MPT3SAS_DELL_12G_HBA_SSDID 0x1F46
+
+/*
+ * Cisco HBA branding
+ */
+#define MPT3SAS_CISCO_12G_8E_HBA_BRANDING \
+ "Cisco 9300-8E 12G SAS HBA"
+#define MPT3SAS_CISCO_12G_8I_HBA_BRANDING \
+ "Cisco 9300-8i 12G SAS HBA"
+#define MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING \
+ "Cisco 12G Modular SAS Pass through Controller"
+#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING \
+ "UCS C3X60 12G SAS Pass through Controller"
+/*
+ * Cisco HBA SSSDIDs
+ */
+#define MPT3SAS_CISCO_12G_8E_HBA_SSDID 0x14C
+#define MPT3SAS_CISCO_12G_8I_HBA_SSDID 0x154
+#define MPT3SAS_CISCO_12G_AVILA_HBA_SSDID 0x155
+#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID 0x156
+
/*
* status bits for ioc->diag_buffer_status
*/
#define MPT3_DIAG_BUFFER_IS_RELEASED (0x02)
#define MPT3_DIAG_BUFFER_IS_DIAG_RESET (0x04)
+/*
+ * Combined Reply Queue constants,
+ * There are twelve Supplemental Reply Post Host Index Registers
+ * and each register is at offset 0x10 bytes from the previous one.
+ */
+#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT 12
+#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET (0x10)
/* OEM Identifiers */
#define MFG10_OEM_ID_INVALID (0x00000000)
#define MFG10_GF0_SSD_DATA_SCRUB_DISABLE (0x00000008)
#define MFG10_GF0_SINGLE_DRIVE_R0 (0x00000010)
+#define VIRTUAL_IO_FAILED_RETRY (0x32010081)
+
/* OEM Specific Flags will come from OEM specific header files */
struct Mpi2ManufacturingPage10_t {
MPI2_CONFIG_PAGE_HEADER Header; /* 00h */
* @responding: used in _scsih_sas_device_mark_responding
* @fast_path: fast path feature enable bit
* @pfa_led_on: flag for PFA LED status
- *
+ * @pend_sas_rphy_add: flag to check if device is in sas_rphy_add()
+ * addition routine.
*/
struct _sas_device {
struct list_head list;
u8 responding;
u8 fast_path;
u8 pfa_led_on;
+ u8 pend_sas_rphy_add;
+ u8 enclosure_level;
+ u8 connector_name[4];
};
/**
* is assigned only ones
* @reply_queue_count: number of reply queue's
* @reply_queue_list: link list contaning the reply queue info
- * @reply_post_host_index: head index in the pool where FW completes IO
+ * @msix96_vector: 96 MSI-X vector support
+ * @replyPostRegisterIndex: index of next position in Reply Desc Post Queue
* @delayed_tr_list: target reset link list
* @delayed_tr_volume_list: volume target reset link list
* @@temp_sensors_count: flag to carry the number of temperature sensors
MPT_BUILD_SG_SCMD build_sg_scmd;
MPT_BUILD_SG build_sg;
MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge;
- u8 mpi25;
u16 sge_size_ieee;
/* function ptr for MPI sg elements only */
u8 reply_queue_count;
struct list_head reply_queue_list;
+ u8 msix96_vector;
+ /* reply post register index */
+ resource_size_t **replyPostRegisterIndex;
+
struct list_head delayed_tr_list;
struct list_head delayed_tr_volume_list;
u8 temp_sensors_count;
if (!sas_device)
return;
+ pr_info(MPT3SAS_FMT
+ "removing handle(0x%04x), sas_addr(0x%016llx)\n",
+ ioc->name, sas_device->handle,
+ (unsigned long long) sas_device->sas_address);
+
+ if (sas_device->enclosure_handle != 0)
+ pr_info(MPT3SAS_FMT
+ "removing enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot);
+
+ if (sas_device->connector_name[0] != '\0')
+ pr_info(MPT3SAS_FMT
+ "removing enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, sas_device->enclosure_level,
+ sas_device->connector_name);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_del(&sas_device->list);
ioc->name, __func__, sas_device->handle,
(unsigned long long)sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure logical id(0x%016llx), slot( %d)\n",
+ ioc->name, __func__, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot));
+
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, __func__,
+ sas_device->enclosure_level, sas_device->connector_name));
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
__func__, sas_device->handle,
(unsigned long long)sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure logical id(0x%016llx), slot( %d)\n",
+ ioc->name, __func__, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot));
+
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, __func__, sas_device->enclosure_level,
+ sas_device->connector_name));
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
_scsih_determine_boot_device(ioc, sas_device, 0);
"sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
ds, handle, (unsigned long long)sas_device->sas_address,
sas_device->phy, (unsigned long long)sas_device->device_name);
- sdev_printk(KERN_INFO, sdev,
- "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
- ds, (unsigned long long)
- sas_device->enclosure_logical_id, sas_device->slot);
+ if (sas_device->enclosure_handle != 0)
+ sdev_printk(KERN_INFO, sdev,
+ "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
+ ds, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot);
+ if (sas_device->connector_name[0] != '\0')
+ sdev_printk(KERN_INFO, sdev,
+ "%s: enclosure level(0x%04x), connector name( %s)\n",
+ ds, sas_device->enclosure_level,
+ sas_device->connector_name);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
sas_device->handle,
(unsigned long long)sas_device->sas_address,
sas_device->phy);
- starget_printk(KERN_INFO, starget,
- "enclosure_logical_id(0x%016llx), slot(%d)\n",
- (unsigned long long)sas_device->enclosure_logical_id,
- sas_device->slot);
+ if (sas_device->enclosure_handle != 0)
+ starget_printk(KERN_INFO, starget,
+ "enclosure_logical_id(0x%016llx), slot(%d)\n",
+ (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name)
+ starget_printk(KERN_INFO, starget,
+ "enclosure level(0x%04x),connector name(%s)\n",
+ sas_device->enclosure_level,
+ sas_device->connector_name);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
}
+/**
+ * _scsih_internal_device_block - block the sdev device
+ * @sdev: per device object
+ * @sas_device_priv_data : per device driver private data
+ *
+ * make sure device is blocked without error, if not
+ * print an error
+ */
+static void
+_scsih_internal_device_block(struct scsi_device *sdev,
+ struct MPT3SAS_DEVICE *sas_device_priv_data)
+{
+ int r = 0;
+
+ sdev_printk(KERN_INFO, sdev, "device_block, handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle);
+ sas_device_priv_data->block = 1;
+
+ r = scsi_internal_device_block(sdev);
+ if (r == -EINVAL)
+ sdev_printk(KERN_WARNING, sdev,
+ "device_block failed with return(%d) for handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle, r);
+}
+
+/**
+ * _scsih_internal_device_unblock - unblock the sdev device
+ * @sdev: per device object
+ * @sas_device_priv_data : per device driver private data
+ * make sure device is unblocked without error, if not retry
+ * by blocking and then unblocking
+ */
+
+static void
+_scsih_internal_device_unblock(struct scsi_device *sdev,
+ struct MPT3SAS_DEVICE *sas_device_priv_data)
+{
+ int r = 0;
+
+ sdev_printk(KERN_WARNING, sdev, "device_unblock and setting to running, "
+ "handle(0x%04x)\n", sas_device_priv_data->sas_target->handle);
+ sas_device_priv_data->block = 0;
+ r = scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+ if (r == -EINVAL) {
+ /* The device has been set to SDEV_RUNNING by SD layer during
+ * device addition but the request queue is still stopped by
+ * our earlier block call. We need to perform a block again
+ * to get the device to SDEV_BLOCK and then to SDEV_RUNNING */
+
+ sdev_printk(KERN_WARNING, sdev,
+ "device_unblock failed with return(%d) for handle(0x%04x) "
+ "performing a block followed by an unblock\n",
+ sas_device_priv_data->sas_target->handle, r);
+ sas_device_priv_data->block = 1;
+ r = scsi_internal_device_block(sdev);
+ if (r)
+ sdev_printk(KERN_WARNING, sdev, "retried device_block "
+ "failed with return(%d) for handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle, r);
+
+ sas_device_priv_data->block = 0;
+ r = scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+ if (r)
+ sdev_printk(KERN_WARNING, sdev, "retried device_unblock"
+ " failed with return(%d) for handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle, r);
+ }
+}
+
/**
* _scsih_ublock_io_all_device - unblock every device
* @ioc: per adapter object
if (!sas_device_priv_data->block)
continue;
- sas_device_priv_data->block = 0;
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
"device_running, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle));
- scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+ _scsih_internal_device_unblock(sdev, sas_device_priv_data);
}
}
if (sas_device_priv_data->sas_target->sas_address
!= sas_address)
continue;
- if (sas_device_priv_data->block) {
- sas_device_priv_data->block = 0;
- scsi_internal_device_unblock(sdev, SDEV_RUNNING);
- }
+ if (sas_device_priv_data->block)
+ _scsih_internal_device_unblock(sdev,
+ sas_device_priv_data);
}
}
continue;
if (sas_device_priv_data->block)
continue;
- sas_device_priv_data->block = 1;
- scsi_internal_device_block(sdev);
- sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
- sas_device_priv_data->sas_target->handle);
+ _scsih_internal_device_block(sdev, sas_device_priv_data);
}
}
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
+ struct _sas_device *sas_device;
+
+ sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ if (!sas_device)
+ return;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
continue;
if (sas_device_priv_data->block)
continue;
- sas_device_priv_data->block = 1;
- scsi_internal_device_block(sdev);
- sdev_printk(KERN_INFO, sdev,
- "device_blocked, handle(0x%04x)\n", handle);
+ if (sas_device->pend_sas_rphy_add)
+ continue;
+ _scsih_internal_device_block(sdev, sas_device_priv_data);
}
}
"setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, handle,
(unsigned long long)sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "setting delete flag:enclosure logical id(0x%016llx),"
+ " slot(%d)\n", ioc->name, (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot));
+ if (sas_device->connector_name)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "setting delete flag: enclosure level(0x%04x),"
+ " connector name( %s)\n", ioc->name,
+ sas_device->enclosure_level,
+ sas_device->connector_name));
_scsih_ublock_io_device(ioc, sas_address);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
"\tsas_address(0x%016llx), phy(%d)\n",
ioc->name, (unsigned long long)
sas_device->sas_address, sas_device->phy);
- pr_warn(MPT3SAS_FMT
- "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
- ioc->name, (unsigned long long)
- sas_device->enclosure_logical_id, sas_device->slot);
+ if (sas_device->enclosure_handle != 0)
+ pr_warn(MPT3SAS_FMT
+ "\tenclosure_logical_id(0x%016llx),"
+ "slot(%d)\n", ioc->name,
+ (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name[0])
+ pr_warn(MPT3SAS_FMT
+ "\tenclosure level(0x%04x),"
+ " connector name( %s)\n", ioc->name,
+ sas_device->enclosure_level,
+ sas_device->connector_name);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
- starget_printk(KERN_WARNING, starget, "predicted fault\n");
+ if (sas_device->enclosure_handle != 0)
+ starget_printk(KERN_INFO, starget, "predicted fault, "
+ "enclosure logical id(0x%016llx), slot(%d)\n",
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name[0] != '\0')
+ starget_printk(KERN_WARNING, starget, "predicted fault, "
+ "enclosure level(0x%04x), connector name( %s)\n",
+ sas_device->enclosure_level,
+ sas_device->connector_name);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
_scsih_smart_predicted_fault(ioc,
le16_to_cpu(mpi_reply->DevHandle));
mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
- }
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+ 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)))
+ _scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid);
+#endif
+ }
switch (ioc_status) {
case MPI2_IOCSTATUS_BUSY:
case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
scmd->device->expecting_cc_ua = 1;
}
break;
+ } else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
+ scmd->result = DID_RESET << 16;
+ break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;
sas_device->handle, handle);
sas_target_priv_data->handle = handle;
sas_device->handle = handle;
+ 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);
+ } else {
+ sas_device->enclosure_level = 0;
+ sas_device->connector_name[0] = '\0';
+ }
}
/* check if device is present */
ioc->name, __FILE__, __LINE__, __func__);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
- sas_device->slot =
- le16_to_cpu(sas_device_pg0.Slot);
+ if (sas_device->enclosure_handle != 0)
+ sas_device->slot =
+ le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->phy = sas_device_pg0.PhyNum;
sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 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);
+ } else {
+ sas_device->enclosure_level = 0;
+ sas_device->connector_name[0] = '\0';
+ }
/* get enclosure_logical_id */
if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
ioc->name, __func__,
sas_device->handle, (unsigned long long)
sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name, __func__,
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot));
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enter: enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, __func__,
+ sas_device->enclosure_level,
+ sas_device->connector_name));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
"removing handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, sas_device->handle,
(unsigned long long) sas_device->sas_address);
+ if (sas_device->enclosure_handle != 0)
+ pr_info(MPT3SAS_FMT
+ "removing : enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name,
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name[0] != '\0')
+ pr_info(MPT3SAS_FMT
+ "removing enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, sas_device->enclosure_level,
+ sas_device->connector_name);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, __func__,
- sas_device->handle, (unsigned long long)
- sas_device->sas_address));
+ sas_device->handle, (unsigned long long)
+ sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name, __func__,
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot));
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: exit: enclosure level(0x%04x), connector name(%s)\n",
+ ioc->name, __func__, sas_device->enclosure_level,
+ sas_device->connector_name));
kfree(sas_device);
}
/**
* _scsih_mark_responding_sas_device - mark a sas_devices as responding
* @ioc: per adapter object
- * @sas_address: sas address
- * @slot: enclosure slot id
- * @handle: device handle
+ * @sas_device_pg0: SAS Device page 0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_sas_devices.
* Return nothing.
*/
static void
-_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
- u16 slot, u16 handle)
+_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc,
+Mpi2SasDevicePage0_t *sas_device_pg0)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
- if (sas_device->sas_address == sas_address &&
- sas_device->slot == slot) {
+ if ((sas_device->sas_address == sas_device_pg0->SASAddress) &&
+ (sas_device->slot == sas_device_pg0->Slot)) {
sas_device->responding = 1;
starget = sas_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
- if (starget)
+ if (starget) {
starget_printk(KERN_INFO, starget,
- "handle(0x%04x), sas_addr(0x%016llx), "
- "enclosure logical id(0x%016llx), "
- "slot(%d)\n", handle,
- (unsigned long long)sas_device->sas_address,
+ "handle(0x%04x), sas_addr(0x%016llx)\n",
+ sas_device_pg0->DevHandle,
(unsigned long long)
- sas_device->enclosure_logical_id,
- sas_device->slot);
- if (sas_device->handle == handle)
+ sas_device->sas_address);
+
+ if (sas_device->enclosure_handle != 0)
+ starget_printk(KERN_INFO, starget,
+ "enclosure logical id(0x%016llx),"
+ " slot(%d)\n",
+ (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot);
+ }
+ 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);
+ } else {
+ sas_device->enclosure_level = 0;
+ sas_device->connector_name[0] = '\0';
+ }
+
+ if (sas_device->handle == sas_device_pg0->DevHandle)
goto out;
pr_info("\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
- sas_device->handle = handle;
+ sas_device->handle = sas_device_pg0->DevHandle;
if (sas_target_priv_data)
- sas_target_priv_data->handle = handle;
+ sas_target_priv_data->handle =
+ sas_device_pg0->DevHandle;
goto out;
}
}
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
- handle = le16_to_cpu(sas_device_pg0.DevHandle);
+ handle = sas_device_pg0.DevHandle =
+ le16_to_cpu(sas_device_pg0.DevHandle);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
continue;
- _scsih_mark_responding_sas_device(ioc,
- le64_to_cpu(sas_device_pg0.SASAddress),
- le16_to_cpu(sas_device_pg0.Slot), handle);
+ sas_device_pg0.SASAddress =
+ le64_to_cpu(sas_device_pg0.SASAddress);
+ sas_device_pg0.Slot = le16_to_cpu(sas_device_pg0.Slot);
+ _scsih_mark_responding_sas_device(ioc, &sas_device_pg0);
}
out:
/* event thread */
snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
"fw_event%d", ioc->id);
- ioc->firmware_event_thread = create_singlethread_workqueue(
- ioc->firmware_event_name);
+ ioc->firmware_event_thread = alloc_ordered_workqueue(
+ ioc->firmware_event_name, WQ_MEM_RECLAIM);
if (!ioc->firmware_event_thread) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
unsigned long flags;
struct _sas_node *sas_node;
struct sas_rphy *rphy;
+ struct _sas_device *sas_device = NULL;
int i;
struct sas_port *port;
mpt3sas_port->remote_identify.device_type);
rphy->identify = mpt3sas_port->remote_identify;
+
+ if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+ sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+ mpt3sas_port->remote_identify.sas_address);
+ if (!sas_device) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__));
+ goto out_fail;
+ }
+ sas_device->pend_sas_rphy_add = 1;
+ }
+
if ((sas_rphy_add(rphy))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
}
+
+ if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE)
+ sas_device->pend_sas_rphy_add = 0;
+
if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
dev_printk(KERN_INFO, &rphy->dev,
"add: handle(0x%04x), sas_addr(0x%016llx)\n",
} else {
dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
- if (!dma_addr_out) {
+ if (pci_dma_mapping_error(ioc->pdev, dma_addr_out)) {
pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n",
ioc->name, __func__);
rc = -ENOMEM;
} else {
dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio),
blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
- if (!dma_addr_in) {
+ if (pci_dma_mapping_error(ioc->pdev, dma_addr_in)) {
pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n",
ioc->name, __func__);
rc = -ENOMEM;
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_OPEN_REJECT;
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
+ break;
default:
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", status));
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_OPEN_REJECT;
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
+ break;
default:
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", status));
* module options to "modprobe scsi_debug num_tgts=2" [20021221]
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+
#include <linux/module.h>
#include <linux/kernel.h>
/* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1)
* or "peripheral device" addressing (value 0) */
#define SAM2_LUN_ADDRESS_METHOD 0
-#define SAM2_WLUN_REPORT_LUNS 0xc101
/* SCSI_DEBUG_CANQUEUE is the maximum number of commands that can be queued
* (for response) at one time. Can be reduced by max_queue option. Command
else
hpnt->max_id = scsi_debug_num_tgts;
/* scsi_debug_max_luns; */
- hpnt->max_lun = SAM2_WLUN_REPORT_LUNS;
+ hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1;
}
spin_unlock(&sdebug_host_list_lock);
}
arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC);
if (! arr)
return DID_REQUEUE << 16;
- have_wlun = (scp->device->lun == SAM2_WLUN_REPORT_LUNS);
+ have_wlun = (scp->device->lun == SCSI_W_LUN_REPORT_LUNS);
if (have_wlun)
pq_pdt = 0x1e; /* present, wlun */
else if (scsi_debug_no_lun_0 && (0 == devip->lun))
unsigned char * sbuff;
unsigned char *cmd = scp->cmnd;
unsigned char arr[SCSI_SENSE_BUFFERSIZE];
- bool dsense, want_dsense;
+ bool dsense;
int len = 18;
memset(arr, 0, sizeof(arr));
dsense = !!(cmd[1] & 1);
- want_dsense = dsense || scsi_debug_dsense;
sbuff = scp->sense_buffer;
if ((iec_m_pg[2] & 0x4) && (6 == (iec_m_pg[3] & 0xf))) {
if (dsense) {
__be16 csum = dif_compute_csum(data, scsi_debug_sector_size);
if (sdt->guard_tag != csum) {
- pr_err("%s: GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n",
- __func__,
+ pr_err("GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n",
(unsigned long)sector,
be16_to_cpu(sdt->guard_tag),
be16_to_cpu(csum));
}
if (scsi_debug_dif == SD_DIF_TYPE1_PROTECTION &&
be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) {
- pr_err("%s: REF check failed on sector %lu\n",
- __func__, (unsigned long)sector);
+ pr_err("REF check failed on sector %lu\n",
+ (unsigned long)sector);
return 0x03;
}
if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
be32_to_cpu(sdt->ref_tag) != ei_lba) {
- pr_err("%s: REF check failed on sector %lu\n",
- __func__, (unsigned long)sector);
+ pr_err("REF check failed on sector %lu\n",
+ (unsigned long)sector);
return 0x03;
}
return 0;
return 0;
}
-void dump_sector(unsigned char *buf, int len)
+static void dump_sector(unsigned char *buf, int len)
{
int i, j, n;
one_lun[i].scsi_lun[1] = lun & 0xff;
}
if (want_wlun) {
- one_lun[i].scsi_lun[0] = (SAM2_WLUN_REPORT_LUNS >> 8) & 0xff;
- one_lun[i].scsi_lun[1] = SAM2_WLUN_REPORT_LUNS & 0xff;
+ one_lun[i].scsi_lun[0] = (SCSI_W_LUN_REPORT_LUNS >> 8) & 0xff;
+ one_lun[i].scsi_lun[1] = SCSI_W_LUN_REPORT_LUNS & 0xff;
i++;
}
alloc_len = (unsigned char *)(one_lun + i) - arr;
atomic_inc(&sdebug_completions);
qa_indx = indx;
if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) {
- pr_err("%s: wild qa_indx=%d\n", __func__, qa_indx);
+ pr_err("wild qa_indx=%d\n", qa_indx);
return;
}
spin_lock_irqsave(&queued_arr_lock, iflags);
scp = sqcp->a_cmnd;
if (NULL == scp) {
spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("%s: scp is NULL\n", __func__);
+ pr_err("scp is NULL\n");
return;
}
devip = (struct sdebug_dev_info *)scp->device->hostdata;
if (devip)
atomic_dec(&devip->num_in_q);
else
- pr_err("%s: devip=NULL\n", __func__);
+ pr_err("devip=NULL\n");
if (atomic_read(&retired_max_queue) > 0)
retiring = 1;
sqcp->a_cmnd = NULL;
if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) {
spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("%s: Unexpected completion\n", __func__);
+ pr_err("Unexpected completion\n");
return;
}
retval = atomic_read(&retired_max_queue);
if (qa_indx >= retval) {
spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("%s: index %d too large\n", __func__, retval);
+ pr_err("index %d too large\n", retval);
return;
}
k = find_last_bit(queued_in_use_bm, retval);
atomic_inc(&sdebug_completions);
qa_indx = sd_hrtp->qa_indx;
if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) {
- pr_err("%s: wild qa_indx=%d\n", __func__, qa_indx);
+ pr_err("wild qa_indx=%d\n", qa_indx);
goto the_end;
}
spin_lock_irqsave(&queued_arr_lock, iflags);
scp = sqcp->a_cmnd;
if (NULL == scp) {
spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("%s: scp is NULL\n", __func__);
+ pr_err("scp is NULL\n");
goto the_end;
}
devip = (struct sdebug_dev_info *)scp->device->hostdata;
if (devip)
atomic_dec(&devip->num_in_q);
else
- pr_err("%s: devip=NULL\n", __func__);
+ pr_err("devip=NULL\n");
if (atomic_read(&retired_max_queue) > 0)
retiring = 1;
sqcp->a_cmnd = NULL;
if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) {
spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("%s: Unexpected completion\n", __func__);
+ pr_err("Unexpected completion\n");
goto the_end;
}
retval = atomic_read(&retired_max_queue);
if (qa_indx >= retval) {
spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("%s: index %d too large\n", __func__, retval);
+ pr_err("index %d too large\n", retval);
goto the_end;
}
k = find_last_bit(queued_in_use_bm, retval);
return devip;
sdbg_host = *(struct sdebug_host_info **)shost_priv(sdev->host);
if (!sdbg_host) {
- pr_err("%s: Host info NULL\n", __func__);
+ pr_err("Host info NULL\n");
return NULL;
}
list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) {
if (!open_devip) { /* try and make a new one */
open_devip = sdebug_device_create(sdbg_host, GFP_ATOMIC);
if (!open_devip) {
- printk(KERN_ERR "%s: out of memory at line %d\n",
- __func__, __LINE__);
+ pr_err("out of memory at line %d\n", __LINE__);
return NULL;
}
}
static int scsi_debug_slave_alloc(struct scsi_device *sdp)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
- printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %llu>\n",
+ pr_info("slave_alloc <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue);
return 0;
struct sdebug_dev_info *devip;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
- printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %llu>\n",
+ pr_info("slave_configure <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
(struct sdebug_dev_info *)sdp->hostdata;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
- printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %llu>\n",
+ pr_info("slave_destroy <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (devip) {
/* make this slot available for re-use */
return;
if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) {
scsi_debug_num_parts = SDEBUG_MAX_PARTS;
- pr_warn("%s: reducing partitions to %d\n", __func__,
- SDEBUG_MAX_PARTS);
+ pr_warn("reducing partitions to %d\n", SDEBUG_MAX_PARTS);
}
num_sectors = (int)sdebug_store_sectors;
sectors_per_part = (num_sectors - sdebug_sectors_per)
unsigned long iflags;
int k, num_in_q, qdepth, inject;
struct sdebug_queued_cmd *sqcp = NULL;
- struct scsi_device *sdp = cmnd->device;
+ struct scsi_device *sdp;
+
+ /* this should never happen */
+ if (WARN_ON(!cmnd))
+ return SCSI_MLQUEUE_HOST_BUSY;
- if (NULL == cmnd || NULL == devip) {
- pr_warn("%s: called with NULL cmnd or devip pointer\n",
- __func__);
+ if (NULL == devip) {
+ pr_warn("called devip == NULL\n");
/* no particularly good error to report back */
return SCSI_MLQUEUE_HOST_BUSY;
}
+
+ sdp = cmnd->device;
+
if ((scsi_result) && (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
sdev_printk(KERN_INFO, sdp, "%s: non-zero result=0x%x\n",
__func__, scsi_result);
fake_storep = vmalloc(sz);
if (NULL == fake_storep) {
- pr_err("%s: out of memory, 9\n",
- __func__);
+ pr_err("out of memory, 9\n");
return -ENOMEM;
}
memset(fake_storep, 0, sz);
atomic_set(&retired_max_queue, 0);
if (scsi_debug_ndelay >= 1000000000) {
- pr_warn("%s: ndelay must be less than 1 second, ignored\n",
- __func__);
+ pr_warn("ndelay must be less than 1 second, ignored\n");
scsi_debug_ndelay = 0;
} else if (scsi_debug_ndelay > 0)
scsi_debug_delay = DELAY_OVERRIDDEN;
case 4096:
break;
default:
- pr_err("%s: invalid sector_size %d\n", __func__,
- scsi_debug_sector_size);
+ pr_err("invalid sector_size %d\n", scsi_debug_sector_size);
return -EINVAL;
}
break;
default:
- pr_err("%s: dif must be 0, 1, 2 or 3\n", __func__);
+ pr_err("dif must be 0, 1, 2 or 3\n");
return -EINVAL;
}
if (scsi_debug_guard > 1) {
- pr_err("%s: guard must be 0 or 1\n", __func__);
+ pr_err("guard must be 0 or 1\n");
return -EINVAL;
}
if (scsi_debug_ato > 1) {
- pr_err("%s: ato must be 0 or 1\n", __func__);
+ pr_err("ato must be 0 or 1\n");
return -EINVAL;
}
if (scsi_debug_physblk_exp > 15) {
- pr_err("%s: invalid physblk_exp %u\n", __func__,
- scsi_debug_physblk_exp);
+ pr_err("invalid physblk_exp %u\n", scsi_debug_physblk_exp);
return -EINVAL;
}
if (scsi_debug_lowest_aligned > 0x3fff) {
- pr_err("%s: lowest_aligned too big: %u\n", __func__,
- scsi_debug_lowest_aligned);
+ pr_err("lowest_aligned too big: %u\n",
+ scsi_debug_lowest_aligned);
return -EINVAL;
}
if (0 == scsi_debug_fake_rw) {
fake_storep = vmalloc(sz);
if (NULL == fake_storep) {
- pr_err("%s: out of memory, 1\n", __func__);
+ pr_err("out of memory, 1\n");
return -ENOMEM;
}
memset(fake_storep, 0, sz);
dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
dif_storep = vmalloc(dif_size);
- pr_err("%s: dif_storep %u bytes @ %p\n", __func__, dif_size,
- dif_storep);
+ pr_err("dif_storep %u bytes @ %p\n", dif_size, dif_storep);
if (dif_storep == NULL) {
- pr_err("%s: out of mem. (DIX)\n", __func__);
+ pr_err("out of mem. (DIX)\n");
ret = -ENOMEM;
goto free_vm;
}
if (scsi_debug_unmap_alignment &&
scsi_debug_unmap_granularity <=
scsi_debug_unmap_alignment) {
- pr_err("%s: ERR: unmap_granularity <= unmap_alignment\n",
- __func__);
+ pr_err("ERR: unmap_granularity <= unmap_alignment\n");
return -EINVAL;
}
map_size = lba_to_map_index(sdebug_store_sectors - 1) + 1;
map_storep = vmalloc(BITS_TO_LONGS(map_size) * sizeof(long));
- pr_info("%s: %lu provisioning blocks\n", __func__, map_size);
+ pr_info("%lu provisioning blocks\n", map_size);
if (map_storep == NULL) {
- pr_err("%s: out of mem. (MAP)\n", __func__);
+ pr_err("out of mem. (MAP)\n");
ret = -ENOMEM;
goto free_vm;
}
pseudo_primary = root_device_register("pseudo_0");
if (IS_ERR(pseudo_primary)) {
- pr_warn("%s: root_device_register() error\n", __func__);
+ pr_warn("root_device_register() error\n");
ret = PTR_ERR(pseudo_primary);
goto free_vm;
}
ret = bus_register(&pseudo_lld_bus);
if (ret < 0) {
- pr_warn("%s: bus_register error: %d\n", __func__, ret);
+ pr_warn("bus_register error: %d\n", ret);
goto dev_unreg;
}
ret = driver_register(&sdebug_driverfs_driver);
if (ret < 0) {
- pr_warn("%s: driver_register error: %d\n", __func__, ret);
+ pr_warn("driver_register error: %d\n", ret);
goto bus_unreg;
}
for (k = 0; k < host_to_add; k++) {
if (sdebug_add_adapter()) {
- pr_err("%s: sdebug_add_adapter failed k=%d\n",
- __func__, k);
+ pr_err("sdebug_add_adapter failed k=%d\n", k);
break;
}
}
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) {
- pr_info("%s: built %d host(s)\n", __func__,
- scsi_debug_add_host);
- }
+ if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ pr_info("built %d host(s)\n", scsi_debug_add_host);
+
return 0;
bus_unreg:
dev_unreg:
root_device_unregister(pseudo_primary);
free_vm:
- if (map_storep)
- vfree(map_storep);
- if (dif_storep)
- vfree(dif_storep);
+ vfree(map_storep);
+ vfree(dif_storep);
vfree(fake_storep);
return ret;
bus_unregister(&pseudo_lld_bus);
root_device_unregister(pseudo_primary);
- if (dif_storep)
- vfree(dif_storep);
-
+ vfree(dif_storep);
vfree(fake_storep);
}
sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL);
if (NULL == sdbg_host) {
- printk(KERN_ERR "%s: out of memory at line %d\n",
- __func__, __LINE__);
+ pr_err("out of memory at line %d\n", __LINE__);
return -ENOMEM;
}
for (k = 0; k < devs_per_host; k++) {
sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL);
if (!sdbg_devinfo) {
- printk(KERN_ERR "%s: out of memory at line %d\n",
- __func__, __LINE__);
+ pr_err("out of memory at line %d\n", __LINE__);
error = -ENOMEM;
goto clean;
}
}
sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name, b);
}
- has_wlun_rl = (sdp->lun == SAM2_WLUN_REPORT_LUNS);
+ has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS);
if ((sdp->lun >= scsi_debug_max_luns) && !has_wlun_rl)
return schedule_resp(scp, NULL, errsts_no_connect, 0);
sdebug_driver_template.use_clustering = ENABLE_CLUSTERING;
hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host));
if (NULL == hpnt) {
- pr_err("%s: scsi_host_alloc failed\n", __func__);
+ pr_err("scsi_host_alloc failed\n");
error = -ENODEV;
return error;
}
hpnt->max_id = scsi_debug_num_tgts + 1;
else
hpnt->max_id = scsi_debug_num_tgts;
- hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; /* = scsi_debug_max_luns; */
+ /* = scsi_debug_max_luns; */
+ hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1;
host_prot = 0;
scsi_host_set_prot(hpnt, host_prot);
- printk(KERN_INFO "scsi_debug: host protection%s%s%s%s%s%s%s\n",
+ pr_info("host protection%s%s%s%s%s%s%s\n",
(host_prot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "",
(host_prot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "",
(host_prot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "",
error = scsi_add_host(hpnt, &sdbg_host->dev);
if (error) {
- printk(KERN_ERR "%s: scsi_add_host failed\n", __func__);
+ pr_err("scsi_add_host failed\n");
error = -ENODEV;
scsi_host_put(hpnt);
} else
sdbg_host = to_sdebug_host(dev);
if (!sdbg_host) {
- printk(KERN_ERR "%s: Unable to locate host info\n",
- __func__);
+ pr_err("Unable to locate host info\n");
return -ENODEV;
}
--- /dev/null
+/*
+ * SCSI device handler infrastruture.
+ *
+ * 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 of the License, 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2007
+ * Authors:
+ * Chandra Seetharaman <sekharan@us.ibm.com>
+ * Mike Anderson <andmike@linux.vnet.ibm.com>
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <scsi/scsi_dh.h>
+#include "scsi_priv.h"
+
+static DEFINE_SPINLOCK(list_lock);
+static LIST_HEAD(scsi_dh_list);
+
+struct scsi_dh_blist {
+ const char *vendor;
+ const char *model;
+ const char *driver;
+};
+
+static const struct scsi_dh_blist scsi_dh_blist[] = {
+ {"DGC", "RAID", "clariion" },
+ {"DGC", "DISK", "clariion" },
+ {"DGC", "VRAID", "clariion" },
+
+ {"COMPAQ", "MSA1000 VOLUME", "hp_sw" },
+ {"COMPAQ", "HSV110", "hp_sw" },
+ {"HP", "HSV100", "hp_sw"},
+ {"DEC", "HSG80", "hp_sw"},
+
+ {"IBM", "1722", "rdac", },
+ {"IBM", "1724", "rdac", },
+ {"IBM", "1726", "rdac", },
+ {"IBM", "1742", "rdac", },
+ {"IBM", "1745", "rdac", },
+ {"IBM", "1746", "rdac", },
+ {"IBM", "1813", "rdac", },
+ {"IBM", "1814", "rdac", },
+ {"IBM", "1815", "rdac", },
+ {"IBM", "1818", "rdac", },
+ {"IBM", "3526", "rdac", },
+ {"SGI", "TP9", "rdac", },
+ {"SGI", "IS", "rdac", },
+ {"STK", "OPENstorage D280", "rdac", },
+ {"STK", "FLEXLINE 380", "rdac", },
+ {"SUN", "CSM", "rdac", },
+ {"SUN", "LCSM100", "rdac", },
+ {"SUN", "STK6580_6780", "rdac", },
+ {"SUN", "SUN_6180", "rdac", },
+ {"SUN", "ArrayStorage", "rdac", },
+ {"DELL", "MD3", "rdac", },
+ {"NETAPP", "INF-01-00", "rdac", },
+ {"LSI", "INF-01-00", "rdac", },
+ {"ENGENIO", "INF-01-00", "rdac", },
+ {NULL, NULL, NULL },
+};
+
+static const char *
+scsi_dh_find_driver(struct scsi_device *sdev)
+{
+ const struct scsi_dh_blist *b;
+
+ if (scsi_device_tpgs(sdev))
+ return "alua";
+
+ for (b = scsi_dh_blist; b->vendor; b++) {
+ if (!strncmp(sdev->vendor, b->vendor, strlen(b->vendor)) &&
+ !strncmp(sdev->model, b->model, strlen(b->model))) {
+ return b->driver;
+ }
+ }
+ return NULL;
+}
+
+
+static struct scsi_device_handler *__scsi_dh_lookup(const char *name)
+{
+ struct scsi_device_handler *tmp, *found = NULL;
+
+ spin_lock(&list_lock);
+ list_for_each_entry(tmp, &scsi_dh_list, list) {
+ if (!strncmp(tmp->name, name, strlen(tmp->name))) {
+ found = tmp;
+ break;
+ }
+ }
+ spin_unlock(&list_lock);
+ return found;
+}
+
+static struct scsi_device_handler *scsi_dh_lookup(const char *name)
+{
+ struct scsi_device_handler *dh;
+
+ dh = __scsi_dh_lookup(name);
+ if (!dh) {
+ request_module(name);
+ dh = __scsi_dh_lookup(name);
+ }
+
+ return dh;
+}
+
+/*
+ * scsi_dh_handler_attach - Attach a device handler to a device
+ * @sdev - SCSI device the device handler should attach to
+ * @scsi_dh - The device handler to attach
+ */
+static int scsi_dh_handler_attach(struct scsi_device *sdev,
+ struct scsi_device_handler *scsi_dh)
+{
+ int error;
+
+ if (!try_module_get(scsi_dh->module))
+ return -EINVAL;
+
+ error = scsi_dh->attach(sdev);
+ if (error) {
+ sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%d)\n",
+ scsi_dh->name, error);
+ module_put(scsi_dh->module);
+ } else
+ sdev->handler = scsi_dh;
+
+ return error;
+}
+
+/*
+ * scsi_dh_handler_detach - Detach a device handler from a device
+ * @sdev - SCSI device the device handler should be detached from
+ */
+static void scsi_dh_handler_detach(struct scsi_device *sdev)
+{
+ sdev->handler->detach(sdev);
+ sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", sdev->handler->name);
+ module_put(sdev->handler->module);
+}
+
+/*
+ * Functions for sysfs attribute 'dh_state'
+ */
+static ssize_t
+store_dh_state(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct scsi_device_handler *scsi_dh;
+ int err = -EINVAL;
+
+ if (sdev->sdev_state == SDEV_CANCEL ||
+ sdev->sdev_state == SDEV_DEL)
+ return -ENODEV;
+
+ if (!sdev->handler) {
+ /*
+ * Attach to a device handler
+ */
+ scsi_dh = scsi_dh_lookup(buf);
+ if (!scsi_dh)
+ return err;
+ err = scsi_dh_handler_attach(sdev, scsi_dh);
+ } else {
+ if (!strncmp(buf, "detach", 6)) {
+ /*
+ * Detach from a device handler
+ */
+ sdev_printk(KERN_WARNING, sdev,
+ "can't detach handler %s.\n",
+ sdev->handler->name);
+ err = -EINVAL;
+ } else if (!strncmp(buf, "activate", 8)) {
+ /*
+ * Activate a device handler
+ */
+ if (sdev->handler->activate)
+ err = sdev->handler->activate(sdev, NULL, NULL);
+ else
+ err = 0;
+ }
+ }
+
+ return err<0?err:count;
+}
+
+static ssize_t
+show_dh_state(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+
+ if (!sdev->handler)
+ return snprintf(buf, 20, "detached\n");
+
+ return snprintf(buf, 20, "%s\n", sdev->handler->name);
+}
+
+static struct device_attribute scsi_dh_state_attr =
+ __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state,
+ store_dh_state);
+
+int scsi_dh_add_device(struct scsi_device *sdev)
+{
+ struct scsi_device_handler *devinfo = NULL;
+ const char *drv;
+ int err;
+
+ err = device_create_file(&sdev->sdev_gendev, &scsi_dh_state_attr);
+ if (err)
+ return err;
+
+ drv = scsi_dh_find_driver(sdev);
+ if (drv)
+ devinfo = scsi_dh_lookup(drv);
+ if (devinfo)
+ err = scsi_dh_handler_attach(sdev, devinfo);
+ return err;
+}
+
+void scsi_dh_remove_device(struct scsi_device *sdev)
+{
+ if (sdev->handler)
+ scsi_dh_handler_detach(sdev);
+ device_remove_file(&sdev->sdev_gendev, &scsi_dh_state_attr);
+}
+
+/*
+ * scsi_register_device_handler - register a device handler personality
+ * module.
+ * @scsi_dh - device handler to be registered.
+ *
+ * Returns 0 on success, -EBUSY if handler already registered.
+ */
+int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
+{
+ if (__scsi_dh_lookup(scsi_dh->name))
+ return -EBUSY;
+
+ if (!scsi_dh->attach || !scsi_dh->detach)
+ return -EINVAL;
+
+ spin_lock(&list_lock);
+ list_add(&scsi_dh->list, &scsi_dh_list);
+ spin_unlock(&list_lock);
+
+ printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
+
+ return SCSI_DH_OK;
+}
+EXPORT_SYMBOL_GPL(scsi_register_device_handler);
+
+/*
+ * scsi_unregister_device_handler - register a device handler personality
+ * module.
+ * @scsi_dh - device handler to be unregistered.
+ *
+ * Returns 0 on success, -ENODEV if handler not registered.
+ */
+int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
+{
+ if (!__scsi_dh_lookup(scsi_dh->name))
+ return -ENODEV;
+
+ spin_lock(&list_lock);
+ list_del(&scsi_dh->list);
+ spin_unlock(&list_lock);
+ printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
+
+ return SCSI_DH_OK;
+}
+EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
+
+static struct scsi_device *get_sdev_from_queue(struct request_queue *q)
+{
+ struct scsi_device *sdev;
+ unsigned long flags;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ sdev = q->queuedata;
+ if (!sdev || !get_device(&sdev->sdev_gendev))
+ sdev = NULL;
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ return sdev;
+}
+
+/*
+ * scsi_dh_activate - activate the path associated with the scsi_device
+ * corresponding to the given request queue.
+ * Returns immediately without waiting for activation to be completed.
+ * @q - Request queue that is associated with the scsi_device to be
+ * activated.
+ * @fn - Function to be called upon completion of the activation.
+ * Function fn is called with data (below) and the error code.
+ * Function fn may be called from the same calling context. So,
+ * do not hold the lock in the caller which may be needed in fn.
+ * @data - data passed to the function fn upon completion.
+ *
+ */
+int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data)
+{
+ struct scsi_device *sdev;
+ int err = SCSI_DH_NOSYS;
+
+ sdev = get_sdev_from_queue(q);
+ if (!sdev) {
+ if (fn)
+ fn(data, err);
+ return err;
+ }
+
+ if (!sdev->handler)
+ goto out_fn;
+ err = SCSI_DH_NOTCONN;
+ if (sdev->sdev_state == SDEV_CANCEL ||
+ sdev->sdev_state == SDEV_DEL)
+ goto out_fn;
+
+ err = SCSI_DH_DEV_OFFLINED;
+ if (sdev->sdev_state == SDEV_OFFLINE)
+ goto out_fn;
+
+ if (sdev->handler->activate)
+ err = sdev->handler->activate(sdev, fn, data);
+
+out_put_device:
+ put_device(&sdev->sdev_gendev);
+ return err;
+
+out_fn:
+ if (fn)
+ fn(data, err);
+ goto out_put_device;
+}
+EXPORT_SYMBOL_GPL(scsi_dh_activate);
+
+/*
+ * scsi_dh_set_params - set the parameters for the device as per the
+ * string specified in params.
+ * @q - Request queue that is associated with the scsi_device for
+ * which the parameters to be set.
+ * @params - parameters in the following format
+ * "no_of_params\0param1\0param2\0param3\0...\0"
+ * for example, string for 2 parameters with value 10 and 21
+ * is specified as "2\010\021\0".
+ */
+int scsi_dh_set_params(struct request_queue *q, const char *params)
+{
+ struct scsi_device *sdev;
+ int err = -SCSI_DH_NOSYS;
+
+ sdev = get_sdev_from_queue(q);
+ if (!sdev)
+ return err;
+
+ if (sdev->handler && sdev->handler->set_params)
+ err = sdev->handler->set_params(sdev, params);
+ put_device(&sdev->sdev_gendev);
+ return err;
+}
+EXPORT_SYMBOL_GPL(scsi_dh_set_params);
+
+/*
+ * scsi_dh_attach - Attach device handler
+ * @q - Request queue that is associated with the scsi_device
+ * the handler should be attached to
+ * @name - name of the handler to attach
+ */
+int scsi_dh_attach(struct request_queue *q, const char *name)
+{
+ struct scsi_device *sdev;
+ struct scsi_device_handler *scsi_dh;
+ int err = 0;
+
+ sdev = get_sdev_from_queue(q);
+ if (!sdev)
+ return -ENODEV;
+
+ scsi_dh = scsi_dh_lookup(name);
+ if (!scsi_dh) {
+ err = -EINVAL;
+ goto out_put_device;
+ }
+
+ if (sdev->handler) {
+ if (sdev->handler != scsi_dh)
+ err = -EBUSY;
+ goto out_put_device;
+ }
+
+ err = scsi_dh_handler_attach(sdev, scsi_dh);
+
+out_put_device:
+ put_device(&sdev->sdev_gendev);
+ return err;
+}
+EXPORT_SYMBOL_GPL(scsi_dh_attach);
+
+/*
+ * scsi_dh_attached_handler_name - Get attached device handler's name
+ * @q - Request queue that is associated with the scsi_device
+ * that may have a device handler attached
+ * @gfp - the GFP mask used in the kmalloc() call when allocating memory
+ *
+ * Returns name of attached handler, NULL if no handler is attached.
+ * Caller must take care to free the returned string.
+ */
+const char *scsi_dh_attached_handler_name(struct request_queue *q, gfp_t gfp)
+{
+ struct scsi_device *sdev;
+ const char *handler_name = NULL;
+
+ sdev = get_sdev_from_queue(q);
+ if (!sdev)
+ return NULL;
+
+ if (sdev->handler)
+ handler_name = kstrdup(sdev->handler->name, gfp);
+ put_device(&sdev->sdev_gendev);
+ return handler_name;
+}
+EXPORT_SYMBOL_GPL(scsi_dh_attached_handler_name);
#include <scsi/scsi_transport.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_ioctl.h>
+#include <scsi/scsi_dh.h>
#include <scsi/sg.h>
#include "scsi_priv.h"
if (scsi_sense_is_deferred(&sshdr))
return NEEDS_RETRY;
- if (sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh &&
- sdev->scsi_dh_data->scsi_dh->check_sense) {
+ if (sdev->handler && sdev->handler->check_sense) {
int rc;
- rc = sdev->scsi_dh_data->scsi_dh->check_sense(sdev, &sshdr);
+ rc = sdev->handler->check_sense(sdev, &sshdr);
if (rc != SCSI_RETURN_NOT_HANDLED)
return rc;
/* handler does not care. Drop down to default handling */
* We never actually get interrupted because kthread_run
* disables signal delivery for the created thread.
*/
- while (!kthread_should_stop()) {
+ while (true) {
+ /*
+ * The sequence in kthread_stop() sets the stop flag first
+ * then wakes the process. To avoid missed wakeups, the task
+ * should always be in a non running state before the stop
+ * flag is checked
+ */
set_current_state(TASK_INTERRUPTIBLE);
+ if (kthread_should_stop())
+ break;
+
if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) ||
shost->host_failed != atomic_read(&shost->host_busy)) {
SCSI_LOG_ERROR_RECOVERY(1,
#include <scsi/scsi_driver.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_dh.h>
#include <trace/events/scsi.h>
{
struct scsi_cmnd *cmd = req->special;
- if (unlikely(sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh
- && sdev->scsi_dh_data->scsi_dh->prep_fn)) {
- int ret = sdev->scsi_dh_data->scsi_dh->prep_fn(sdev, req);
+ if (unlikely(sdev->handler && sdev->handler->prep_fn)) {
+ int ret = sdev->handler->prep_fn(sdev, req);
if (ret != BLKPREP_OK)
return ret;
}
extern struct async_domain scsi_sd_pm_domain;
extern struct async_domain scsi_sd_probe_domain;
+/* scsi_dh.c */
+#ifdef CONFIG_SCSI_DH
+int scsi_dh_add_device(struct scsi_device *sdev);
+void scsi_dh_remove_device(struct scsi_device *sdev);
+#else
+static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; }
+static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
+#endif
+
/*
* internal scsi timeout functions: for use by mid-layer and transport
* classes.
"failed to add device: %d\n", error);
return error;
}
+
+ error = scsi_dh_add_device(sdev);
+ if (error) {
+ sdev_printk(KERN_INFO, sdev,
+ "failed to add device handler: %d\n", error);
+ return error;
+ }
+
device_enable_async_suspend(&sdev->sdev_dev);
error = device_add(&sdev->sdev_dev);
if (error) {
sdev_printk(KERN_INFO, sdev,
"failed to add class device: %d\n", error);
+ scsi_dh_remove_device(sdev);
device_del(&sdev->sdev_gendev);
return error;
}
bsg_unregister_queue(sdev->request_queue);
device_unregister(&sdev->sdev_dev);
transport_remove_device(dev);
+ scsi_dh_remove_device(sdev);
device_del(dev);
} else
put_device(&sdev->sdev_dev);
u64 identifier;
int error;
- /*
- * Only devices behind an expander are supported, because the
- * enclosure identifier is a SMP feature.
- */
- if (scsi_is_sas_phy_local(phy))
- return -EINVAL;
-
error = i->f->get_enclosure_identifier(rphy, &identifier);
if (error)
return error;
struct sas_internal *i = to_sas_internal(shost->transportt);
int val;
- if (scsi_is_sas_phy_local(phy))
- return -EINVAL;
-
val = i->f->get_bay_identifier(rphy);
if (val < 0)
return val;
struct execute_work ew; /* used to get process context on put */
struct work_struct requeue_work;
- struct scsi_dh_data *scsi_dh_data;
+ struct scsi_device_handler *handler;
+ void *handler_data;
+
enum scsi_device_state sdev_state;
unsigned long sdev_data[0];
} __attribute__((aligned(sizeof(unsigned long))));
-typedef void (*activate_complete)(void *, int);
-struct scsi_device_handler {
- /* Used by the infrastructure */
- struct list_head list; /* list of scsi_device_handlers */
-
- /* Filled by the hardware handler */
- struct module *module;
- const char *name;
- int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
- struct scsi_dh_data *(*attach)(struct scsi_device *);
- void (*detach)(struct scsi_device *);
- int (*activate)(struct scsi_device *, activate_complete, void *);
- int (*prep_fn)(struct scsi_device *, struct request *);
- int (*set_params)(struct scsi_device *, const char *);
- bool (*match)(struct scsi_device *);
-};
-
-struct scsi_dh_data {
- struct scsi_device_handler *scsi_dh;
- struct scsi_device *sdev;
- struct kref kref;
-};
-
#define to_scsi_device(d) \
container_of(d, struct scsi_device, sdev_gendev)
#define class_to_sdev(d) \
SCSI_DH_NOSYS,
SCSI_DH_DRIVER_MAX,
};
-#if defined(CONFIG_SCSI_DH) || defined(CONFIG_SCSI_DH_MODULE)
+
+typedef void (*activate_complete)(void *, int);
+struct scsi_device_handler {
+ /* Used by the infrastructure */
+ struct list_head list; /* list of scsi_device_handlers */
+
+ /* Filled by the hardware handler */
+ struct module *module;
+ const char *name;
+ int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
+ int (*attach)(struct scsi_device *);
+ void (*detach)(struct scsi_device *);
+ int (*activate)(struct scsi_device *, activate_complete, void *);
+ int (*prep_fn)(struct scsi_device *, struct request *);
+ int (*set_params)(struct scsi_device *, const char *);
+};
+
+#ifdef CONFIG_SCSI_DH
extern int scsi_dh_activate(struct request_queue *, activate_complete, void *);
-extern int scsi_dh_handler_exist(const char *);
extern int scsi_dh_attach(struct request_queue *, const char *);
-extern void scsi_dh_detach(struct request_queue *);
extern const char *scsi_dh_attached_handler_name(struct request_queue *, gfp_t);
extern int scsi_dh_set_params(struct request_queue *, const char *);
#else
fn(data, 0);
return 0;
}
-static inline int scsi_dh_handler_exist(const char *name)
-{
- return 0;
-}
static inline int scsi_dh_attach(struct request_queue *req, const char *name)
{
return SCSI_DH_NOSYS;
}
-static inline void scsi_dh_detach(struct request_queue *q)
-{
- return;
-}
static inline const char *scsi_dh_attached_handler_name(struct request_queue *q,
gfp_t gfp)
{
projects / cascardo / linux.git / commitdiff