2 *******************************************************************************
4 ** FILE NAME : arcmsr_hba.c
6 ** Description: SCSI RAID Device Driver for
7 ** ARECA RAID Host adapter
8 *******************************************************************************
9 ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
11 ** Web site: www.areca.com.tw
12 ** E-mail: support@areca.com.tw
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License version 2 as
16 ** published by the Free Software Foundation.
17 ** This program is distributed in the hope that it will be useful,
18 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ** GNU General Public License for more details.
21 *******************************************************************************
22 ** Redistribution and use in source and binary forms, with or without
23 ** modification, are permitted provided that the following conditions
25 ** 1. Redistributions of source code must retain the above copyright
26 ** notice, this list of conditions and the following disclaimer.
27 ** 2. Redistributions in binary form must reproduce the above copyright
28 ** notice, this list of conditions and the following disclaimer in the
29 ** documentation and/or other materials provided with the distribution.
30 ** 3. The name of the author may not be used to endorse or promote products
31 ** derived from this software without specific prior written permission.
33 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
34 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
35 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
36 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
37 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
38 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
39 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
40 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
41 ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
42 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 *******************************************************************************
44 ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
45 ** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
46 *******************************************************************************
48 #include <linux/module.h>
49 #include <linux/reboot.h>
50 #include <linux/spinlock.h>
51 #include <linux/pci_ids.h>
52 #include <linux/interrupt.h>
53 #include <linux/moduleparam.h>
54 #include <linux/errno.h>
55 #include <linux/types.h>
56 #include <linux/delay.h>
57 #include <linux/dma-mapping.h>
58 #include <linux/timer.h>
59 #include <linux/slab.h>
60 #include <linux/pci.h>
61 #include <linux/aer.h>
64 #include <asm/uaccess.h>
65 #include <scsi/scsi_host.h>
66 #include <scsi/scsi.h>
67 #include <scsi/scsi_cmnd.h>
68 #include <scsi/scsi_tcq.h>
69 #include <scsi/scsi_device.h>
70 #include <scsi/scsi_transport.h>
71 #include <scsi/scsicam.h>
73 MODULE_AUTHOR("Nick Cheng <support@areca.com.tw>");
74 MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880) SATA/SAS RAID Host Bus Adapter");
75 MODULE_LICENSE("Dual BSD/GPL");
76 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
78 #define ARCMSR_SLEEPTIME 10
79 #define ARCMSR_RETRYCOUNT 12
81 wait_queue_head_t wait_q;
82 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
83 struct scsi_cmnd *cmd);
84 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
85 static int arcmsr_abort(struct scsi_cmnd *);
86 static int arcmsr_bus_reset(struct scsi_cmnd *);
87 static int arcmsr_bios_param(struct scsi_device *sdev,
88 struct block_device *bdev, sector_t capacity, int *info);
89 static int arcmsr_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
90 static int arcmsr_probe(struct pci_dev *pdev,
91 const struct pci_device_id *id);
92 static void arcmsr_remove(struct pci_dev *pdev);
93 static void arcmsr_shutdown(struct pci_dev *pdev);
94 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
95 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
96 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
97 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
98 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
99 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
100 static void arcmsr_request_device_map(unsigned long pacb);
101 static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb);
102 static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb);
103 static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb);
104 static void arcmsr_message_isr_bh_fn(struct work_struct *work);
105 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
106 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
107 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *pACB);
108 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
109 static const char *arcmsr_info(struct Scsi_Host *);
110 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
111 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
112 int queue_depth, int reason)
114 if (reason != SCSI_QDEPTH_DEFAULT)
117 if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
118 queue_depth = ARCMSR_MAX_CMD_PERLUN;
119 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
123 static struct scsi_host_template arcmsr_scsi_host_template = {
124 .module = THIS_MODULE,
125 .name = "ARCMSR ARECA SATA/SAS RAID Controller"
126 ARCMSR_DRIVER_VERSION,
128 .queuecommand = arcmsr_queue_command,
129 .eh_abort_handler = arcmsr_abort,
130 .eh_bus_reset_handler = arcmsr_bus_reset,
131 .bios_param = arcmsr_bios_param,
132 .change_queue_depth = arcmsr_adjust_disk_queue_depth,
133 .can_queue = ARCMSR_MAX_FREECCB_NUM,
134 .this_id = ARCMSR_SCSI_INITIATOR_ID,
135 .sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
136 .max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
137 .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
138 .use_clustering = ENABLE_CLUSTERING,
139 .shost_attrs = arcmsr_host_attrs,
141 static struct pci_device_id arcmsr_device_id_table[] = {
142 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
143 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
144 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)},
145 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)},
146 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)},
147 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200)},
148 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201)},
149 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202)},
150 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)},
151 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)},
152 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)},
153 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)},
154 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)},
155 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)},
156 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)},
157 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)},
158 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)},
159 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)},
160 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880)},
161 {0, 0}, /* Terminating entry */
163 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
164 static struct pci_driver arcmsr_pci_driver = {
166 .id_table = arcmsr_device_id_table,
167 .probe = arcmsr_probe,
168 .remove = arcmsr_remove,
169 .shutdown = arcmsr_shutdown,
172 ****************************************************************************
173 ****************************************************************************
176 static void arcmsr_free_hbb_mu(struct AdapterControlBlock *acb)
178 switch (acb->adapter_type) {
179 case ACB_ADAPTER_TYPE_A:
180 case ACB_ADAPTER_TYPE_C:
182 case ACB_ADAPTER_TYPE_B:{
183 dma_free_coherent(&acb->pdev->dev,
184 sizeof(struct MessageUnit_B),
185 acb->pmuB, acb->dma_coherent_handle_hbb_mu);
190 static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
192 struct pci_dev *pdev = acb->pdev;
193 switch (acb->adapter_type){
194 case ACB_ADAPTER_TYPE_A:{
195 acb->pmuA = ioremap(pci_resource_start(pdev,0), pci_resource_len(pdev,0));
197 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
202 case ACB_ADAPTER_TYPE_B:{
203 void __iomem *mem_base0, *mem_base1;
204 mem_base0 = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
206 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
209 mem_base1 = ioremap(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
212 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
215 acb->mem_base0 = mem_base0;
216 acb->mem_base1 = mem_base1;
219 case ACB_ADAPTER_TYPE_C:{
220 acb->pmuC = ioremap_nocache(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
222 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
225 if (readl(&acb->pmuC->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
226 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &acb->pmuC->outbound_doorbell_clear);/*clear interrupt*/
235 static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
237 switch (acb->adapter_type) {
238 case ACB_ADAPTER_TYPE_A:{
242 case ACB_ADAPTER_TYPE_B:{
243 iounmap(acb->mem_base0);
244 iounmap(acb->mem_base1);
248 case ACB_ADAPTER_TYPE_C:{
254 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
256 irqreturn_t handle_state;
257 struct AdapterControlBlock *acb = dev_id;
259 handle_state = arcmsr_interrupt(acb);
263 static int arcmsr_bios_param(struct scsi_device *sdev,
264 struct block_device *bdev, sector_t capacity, int *geom)
266 int ret, heads, sectors, cylinders, total_capacity;
267 unsigned char *buffer;/* return copy of block device's partition table */
269 buffer = scsi_bios_ptable(bdev);
271 ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]);
276 total_capacity = capacity;
279 cylinders = total_capacity / (heads * sectors);
280 if (cylinders > 1024) {
283 cylinders = total_capacity / (heads * sectors);
291 static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
293 struct pci_dev *pdev = acb->pdev;
295 pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
296 acb->dev_id = dev_id;
299 acb->adapter_type = ACB_ADAPTER_TYPE_C;
303 acb->adapter_type = ACB_ADAPTER_TYPE_B;
307 default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
311 static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
313 struct MessageUnit_A __iomem *reg = acb->pmuA;
316 for (i = 0; i < 2000; i++) {
317 if (readl(®->outbound_intstatus) &
318 ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
319 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
320 ®->outbound_intstatus);
324 } /* max 20 seconds */
329 static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
331 struct MessageUnit_B *reg = acb->pmuB;
334 for (i = 0; i < 2000; i++) {
335 if (readl(reg->iop2drv_doorbell)
336 & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
337 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
338 reg->iop2drv_doorbell);
339 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
340 reg->drv2iop_doorbell);
344 } /* max 20 seconds */
349 static uint8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *pACB)
351 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
354 for (i = 0; i < 2000; i++) {
355 if (readl(&phbcmu->outbound_doorbell)
356 & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
357 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
358 &phbcmu->outbound_doorbell_clear); /*clear interrupt*/
362 } /* max 20 seconds */
367 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
369 struct MessageUnit_A __iomem *reg = acb->pmuA;
370 int retry_count = 30;
371 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
373 if (arcmsr_hba_wait_msgint_ready(acb))
377 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
378 timeout, retry count down = %d \n", acb->host->host_no, retry_count);
380 } while (retry_count != 0);
383 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
385 struct MessageUnit_B *reg = acb->pmuB;
386 int retry_count = 30;
387 writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
389 if (arcmsr_hbb_wait_msgint_ready(acb))
393 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
394 timeout,retry count down = %d \n", acb->host->host_no, retry_count);
396 } while (retry_count != 0);
399 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *pACB)
401 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
402 int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
403 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
404 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
406 if (arcmsr_hbc_wait_msgint_ready(pACB)) {
410 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
411 timeout,retry count down = %d \n", pACB->host->host_no, retry_count);
413 } while (retry_count != 0);
416 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
418 switch (acb->adapter_type) {
420 case ACB_ADAPTER_TYPE_A: {
421 arcmsr_flush_hba_cache(acb);
425 case ACB_ADAPTER_TYPE_B: {
426 arcmsr_flush_hbb_cache(acb);
429 case ACB_ADAPTER_TYPE_C: {
430 arcmsr_flush_hbc_cache(acb);
435 static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
437 struct pci_dev *pdev = acb->pdev;
439 dma_addr_t dma_coherent_handle;
440 struct CommandControlBlock *ccb_tmp;
442 dma_addr_t cdb_phyaddr;
443 unsigned long roundup_ccbsize;
444 unsigned long max_xfer_len;
445 unsigned long max_sg_entrys;
446 uint32_t firm_config_version;
448 for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
449 for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
450 acb->devstate[i][j] = ARECA_RAID_GONE;
452 max_xfer_len = ARCMSR_MAX_XFER_LEN;
453 max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
454 firm_config_version = acb->firm_cfg_version;
455 if((firm_config_version & 0xFF) >= 3){
456 max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
457 max_sg_entrys = (max_xfer_len/4096);
459 acb->host->max_sectors = max_xfer_len/512;
460 acb->host->sg_tablesize = max_sg_entrys;
461 roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
462 acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM;
463 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
465 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
468 acb->dma_coherent = dma_coherent;
469 acb->dma_coherent_handle = dma_coherent_handle;
470 memset(dma_coherent, 0, acb->uncache_size);
471 ccb_tmp = dma_coherent;
472 acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
473 for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
474 cdb_phyaddr = dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
475 ccb_tmp->cdb_phyaddr_pattern = ((acb->adapter_type == ACB_ADAPTER_TYPE_C) ? cdb_phyaddr : (cdb_phyaddr >> 5));
476 acb->pccb_pool[i] = ccb_tmp;
478 INIT_LIST_HEAD(&ccb_tmp->list);
479 list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
480 ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
481 dma_coherent_handle = dma_coherent_handle + roundup_ccbsize;
486 static void arcmsr_message_isr_bh_fn(struct work_struct *work)
488 struct AdapterControlBlock *acb = container_of(work,struct AdapterControlBlock, arcmsr_do_message_isr_bh);
489 switch (acb->adapter_type) {
490 case ACB_ADAPTER_TYPE_A: {
492 struct MessageUnit_A __iomem *reg = acb->pmuA;
493 char *acb_dev_map = (char *)acb->device_map;
494 uint32_t __iomem *signature = (uint32_t __iomem*) (®->message_rwbuffer[0]);
495 char __iomem *devicemap = (char __iomem*) (®->message_rwbuffer[21]);
497 struct scsi_device *psdev;
500 atomic_inc(&acb->rq_map_token);
501 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
502 for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
503 diff = (*acb_dev_map)^readb(devicemap);
506 *acb_dev_map = readb(devicemap);
508 for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
509 if((temp & 0x01)==1 && (diff & 0x01) == 1) {
510 scsi_add_device(acb->host, 0, target, lun);
511 }else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
512 psdev = scsi_device_lookup(acb->host, 0, target, lun);
513 if (psdev != NULL ) {
514 scsi_remove_device(psdev);
515 scsi_device_put(psdev);
529 case ACB_ADAPTER_TYPE_B: {
530 struct MessageUnit_B *reg = acb->pmuB;
531 char *acb_dev_map = (char *)acb->device_map;
532 uint32_t __iomem *signature = (uint32_t __iomem*)(®->message_rwbuffer[0]);
533 char __iomem *devicemap = (char __iomem*)(®->message_rwbuffer[21]);
535 struct scsi_device *psdev;
538 atomic_inc(&acb->rq_map_token);
539 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
540 for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
541 diff = (*acb_dev_map)^readb(devicemap);
544 *acb_dev_map = readb(devicemap);
546 for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
547 if((temp & 0x01)==1 && (diff & 0x01) == 1) {
548 scsi_add_device(acb->host, 0, target, lun);
549 }else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
550 psdev = scsi_device_lookup(acb->host, 0, target, lun);
551 if (psdev != NULL ) {
552 scsi_remove_device(psdev);
553 scsi_device_put(psdev);
566 case ACB_ADAPTER_TYPE_C: {
567 struct MessageUnit_C *reg = acb->pmuC;
568 char *acb_dev_map = (char *)acb->device_map;
569 uint32_t __iomem *signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
570 char __iomem *devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
572 struct scsi_device *psdev;
575 atomic_inc(&acb->rq_map_token);
576 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
577 for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) {
578 diff = (*acb_dev_map)^readb(devicemap);
581 *acb_dev_map = readb(devicemap);
583 for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
584 if ((temp & 0x01) == 1 && (diff & 0x01) == 1) {
585 scsi_add_device(acb->host, 0, target, lun);
586 } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) {
587 psdev = scsi_device_lookup(acb->host, 0, target, lun);
589 scsi_remove_device(psdev);
590 scsi_device_put(psdev);
605 static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
607 struct Scsi_Host *host;
608 struct AdapterControlBlock *acb;
611 error = pci_enable_device(pdev);
615 host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct AdapterControlBlock));
617 goto pci_disable_dev;
619 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
621 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
624 "scsi%d: No suitable DMA mask available\n",
626 goto scsi_host_release;
629 init_waitqueue_head(&wait_q);
630 bus = pdev->bus->number;
631 dev_fun = pdev->devfn;
632 acb = (struct AdapterControlBlock *) host->hostdata;
633 memset(acb,0,sizeof(struct AdapterControlBlock));
636 host->max_lun = ARCMSR_MAX_TARGETLUN;
637 host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
638 host->max_cmd_len = 16; /*this is issue of 64bit LBA ,over 2T byte*/
639 host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */
640 host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
641 host->this_id = ARCMSR_SCSI_INITIATOR_ID;
642 host->unique_id = (bus << 8) | dev_fun;
643 pci_set_drvdata(pdev, host);
644 pci_set_master(pdev);
645 error = pci_request_regions(pdev, "arcmsr");
647 goto scsi_host_release;
649 spin_lock_init(&acb->eh_lock);
650 spin_lock_init(&acb->ccblist_lock);
651 acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
652 ACB_F_MESSAGE_RQBUFFER_CLEARED |
653 ACB_F_MESSAGE_WQBUFFER_READED);
654 acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
655 INIT_LIST_HEAD(&acb->ccb_free_list);
656 arcmsr_define_adapter_type(acb);
657 error = arcmsr_remap_pciregion(acb);
659 goto pci_release_regs;
661 error = arcmsr_get_firmware_spec(acb);
663 goto unmap_pci_region;
665 error = arcmsr_alloc_ccb_pool(acb);
669 arcmsr_iop_init(acb);
670 error = scsi_add_host(host, &pdev->dev);
672 goto RAID_controller_stop;
674 error = request_irq(pdev->irq, arcmsr_do_interrupt, IRQF_SHARED, "arcmsr", acb);
676 goto scsi_host_remove;
678 host->irq = pdev->irq;
679 scsi_scan_host(host);
680 INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
681 atomic_set(&acb->rq_map_token, 16);
682 atomic_set(&acb->ante_token_value, 16);
683 acb->fw_flag = FW_NORMAL;
684 init_timer(&acb->eternal_timer);
685 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
686 acb->eternal_timer.data = (unsigned long) acb;
687 acb->eternal_timer.function = &arcmsr_request_device_map;
688 add_timer(&acb->eternal_timer);
689 if(arcmsr_alloc_sysfs_attr(acb))
694 scsi_remove_host(host);
695 RAID_controller_stop:
696 arcmsr_stop_adapter_bgrb(acb);
697 arcmsr_flush_adapter_cache(acb);
698 arcmsr_free_ccb_pool(acb);
700 arcmsr_free_hbb_mu(acb);
702 arcmsr_unmap_pciregion(acb);
704 pci_release_regions(pdev);
708 pci_disable_device(pdev);
712 static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
714 struct MessageUnit_A __iomem *reg = acb->pmuA;
715 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
716 if (!arcmsr_hba_wait_msgint_ready(acb)) {
718 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
719 , acb->host->host_no);
725 static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
727 struct MessageUnit_B *reg = acb->pmuB;
729 writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
730 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
732 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
733 , acb->host->host_no);
738 static uint8_t arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *pACB)
740 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
741 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
742 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
743 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
745 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
746 , pACB->host->host_no);
751 static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
754 switch (acb->adapter_type) {
755 case ACB_ADAPTER_TYPE_A: {
756 rtnval = arcmsr_abort_hba_allcmd(acb);
760 case ACB_ADAPTER_TYPE_B: {
761 rtnval = arcmsr_abort_hbb_allcmd(acb);
765 case ACB_ADAPTER_TYPE_C: {
766 rtnval = arcmsr_abort_hbc_allcmd(acb);
772 static bool arcmsr_hbb_enable_driver_mode(struct AdapterControlBlock *pacb)
774 struct MessageUnit_B *reg = pacb->pmuB;
775 writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
776 if (!arcmsr_hbb_wait_msgint_ready(pacb)) {
777 printk(KERN_ERR "arcmsr%d: can't set driver mode. \n", pacb->host->host_no);
783 static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
785 struct scsi_cmnd *pcmd = ccb->pcmd;
787 scsi_dma_unmap(pcmd);
790 static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
792 struct AdapterControlBlock *acb = ccb->acb;
793 struct scsi_cmnd *pcmd = ccb->pcmd;
795 atomic_dec(&acb->ccboutstandingcount);
796 arcmsr_pci_unmap_dma(ccb);
797 ccb->startdone = ARCMSR_CCB_DONE;
798 spin_lock_irqsave(&acb->ccblist_lock, flags);
799 list_add_tail(&ccb->list, &acb->ccb_free_list);
800 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
801 pcmd->scsi_done(pcmd);
804 static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
807 struct scsi_cmnd *pcmd = ccb->pcmd;
808 struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
809 pcmd->result = DID_OK << 16;
811 int sense_data_length =
812 sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
813 ? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
814 memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
815 memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
816 sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
817 sensebuffer->Valid = 1;
821 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
824 switch (acb->adapter_type) {
825 case ACB_ADAPTER_TYPE_A : {
826 struct MessageUnit_A __iomem *reg = acb->pmuA;
827 orig_mask = readl(®->outbound_intmask);
828 writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
829 ®->outbound_intmask);
832 case ACB_ADAPTER_TYPE_B : {
833 struct MessageUnit_B *reg = acb->pmuB;
834 orig_mask = readl(reg->iop2drv_doorbell_mask);
835 writel(0, reg->iop2drv_doorbell_mask);
838 case ACB_ADAPTER_TYPE_C:{
839 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
840 /* disable all outbound interrupt */
841 orig_mask = readl(®->host_int_mask); /* disable outbound message0 int */
842 writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
849 static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
850 struct CommandControlBlock *ccb, bool error)
853 id = ccb->pcmd->device->id;
854 lun = ccb->pcmd->device->lun;
856 if (acb->devstate[id][lun] == ARECA_RAID_GONE)
857 acb->devstate[id][lun] = ARECA_RAID_GOOD;
858 ccb->pcmd->result = DID_OK << 16;
859 arcmsr_ccb_complete(ccb);
861 switch (ccb->arcmsr_cdb.DeviceStatus) {
862 case ARCMSR_DEV_SELECT_TIMEOUT: {
863 acb->devstate[id][lun] = ARECA_RAID_GONE;
864 ccb->pcmd->result = DID_NO_CONNECT << 16;
865 arcmsr_ccb_complete(ccb);
869 case ARCMSR_DEV_ABORTED:
871 case ARCMSR_DEV_INIT_FAIL: {
872 acb->devstate[id][lun] = ARECA_RAID_GONE;
873 ccb->pcmd->result = DID_BAD_TARGET << 16;
874 arcmsr_ccb_complete(ccb);
878 case ARCMSR_DEV_CHECK_CONDITION: {
879 acb->devstate[id][lun] = ARECA_RAID_GOOD;
880 arcmsr_report_sense_info(ccb);
881 arcmsr_ccb_complete(ccb);
887 "arcmsr%d: scsi id = %d lun = %d isr get command error done, \
888 but got unknown DeviceStatus = 0x%x \n"
892 , ccb->arcmsr_cdb.DeviceStatus);
893 acb->devstate[id][lun] = ARECA_RAID_GONE;
894 ccb->pcmd->result = DID_NO_CONNECT << 16;
895 arcmsr_ccb_complete(ccb);
901 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
904 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
905 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
906 struct scsi_cmnd *abortcmd = pCCB->pcmd;
908 id = abortcmd->device->id;
909 lun = abortcmd->device->lun;
910 abortcmd->result |= DID_ABORT << 16;
911 arcmsr_ccb_complete(pCCB);
912 printk(KERN_NOTICE "arcmsr%d: pCCB ='0x%p' isr got aborted command \n",
913 acb->host->host_no, pCCB);
917 printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \
919 "ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x"
920 " ccboutstandingcount = %d \n"
926 , atomic_read(&acb->ccboutstandingcount));
929 arcmsr_report_ccb_state(acb, pCCB, error);
932 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
936 struct ARCMSR_CDB *pARCMSR_CDB;
938 struct CommandControlBlock *pCCB;
939 switch (acb->adapter_type) {
941 case ACB_ADAPTER_TYPE_A: {
942 struct MessageUnit_A __iomem *reg = acb->pmuA;
943 uint32_t outbound_intstatus;
944 outbound_intstatus = readl(®->outbound_intstatus) &
945 acb->outbound_int_enable;
946 /*clear and abort all outbound posted Q*/
947 writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
948 while(((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF)
949 && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
950 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
951 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
952 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
953 arcmsr_drain_donequeue(acb, pCCB, error);
958 case ACB_ADAPTER_TYPE_B: {
959 struct MessageUnit_B *reg = acb->pmuB;
960 /*clear all outbound posted Q*/
961 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
962 for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
963 if ((flag_ccb = readl(®->done_qbuffer[i])) != 0) {
964 writel(0, ®->done_qbuffer[i]);
965 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
966 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
967 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
968 arcmsr_drain_donequeue(acb, pCCB, error);
970 reg->post_qbuffer[i] = 0;
972 reg->doneq_index = 0;
973 reg->postq_index = 0;
976 case ACB_ADAPTER_TYPE_C: {
977 struct MessageUnit_C *reg = acb->pmuC;
978 struct ARCMSR_CDB *pARCMSR_CDB;
979 uint32_t flag_ccb, ccb_cdb_phy;
981 struct CommandControlBlock *pCCB;
982 while ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
984 flag_ccb = readl(®->outbound_queueport_low);
985 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
986 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+ccb_cdb_phy);/*frame must be 32 bytes aligned*/
987 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
988 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
989 arcmsr_drain_donequeue(acb, pCCB, error);
994 static void arcmsr_remove(struct pci_dev *pdev)
996 struct Scsi_Host *host = pci_get_drvdata(pdev);
997 struct AdapterControlBlock *acb =
998 (struct AdapterControlBlock *) host->hostdata;
1000 arcmsr_free_sysfs_attr(acb);
1001 scsi_remove_host(host);
1002 flush_work(&acb->arcmsr_do_message_isr_bh);
1003 del_timer_sync(&acb->eternal_timer);
1004 arcmsr_disable_outbound_ints(acb);
1005 arcmsr_stop_adapter_bgrb(acb);
1006 arcmsr_flush_adapter_cache(acb);
1007 acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
1008 acb->acb_flags &= ~ACB_F_IOP_INITED;
1010 for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD; poll_count++){
1011 if (!atomic_read(&acb->ccboutstandingcount))
1013 arcmsr_interrupt(acb);/* FIXME: need spinlock */
1017 if (atomic_read(&acb->ccboutstandingcount)) {
1020 arcmsr_abort_allcmd(acb);
1021 arcmsr_done4abort_postqueue(acb);
1022 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
1023 struct CommandControlBlock *ccb = acb->pccb_pool[i];
1024 if (ccb->startdone == ARCMSR_CCB_START) {
1025 ccb->startdone = ARCMSR_CCB_ABORTED;
1026 ccb->pcmd->result = DID_ABORT << 16;
1027 arcmsr_ccb_complete(ccb);
1031 free_irq(pdev->irq, acb);
1032 arcmsr_free_ccb_pool(acb);
1033 arcmsr_free_hbb_mu(acb);
1034 arcmsr_unmap_pciregion(acb);
1035 pci_release_regions(pdev);
1036 scsi_host_put(host);
1037 pci_disable_device(pdev);
1040 static void arcmsr_shutdown(struct pci_dev *pdev)
1042 struct Scsi_Host *host = pci_get_drvdata(pdev);
1043 struct AdapterControlBlock *acb =
1044 (struct AdapterControlBlock *)host->hostdata;
1045 del_timer_sync(&acb->eternal_timer);
1046 arcmsr_disable_outbound_ints(acb);
1047 flush_work(&acb->arcmsr_do_message_isr_bh);
1048 arcmsr_stop_adapter_bgrb(acb);
1049 arcmsr_flush_adapter_cache(acb);
1052 static int arcmsr_module_init(void)
1055 error = pci_register_driver(&arcmsr_pci_driver);
1059 static void arcmsr_module_exit(void)
1061 pci_unregister_driver(&arcmsr_pci_driver);
1063 module_init(arcmsr_module_init);
1064 module_exit(arcmsr_module_exit);
1066 static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
1070 switch (acb->adapter_type) {
1072 case ACB_ADAPTER_TYPE_A: {
1073 struct MessageUnit_A __iomem *reg = acb->pmuA;
1074 mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
1075 ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
1076 ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
1077 writel(mask, ®->outbound_intmask);
1078 acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
1082 case ACB_ADAPTER_TYPE_B: {
1083 struct MessageUnit_B *reg = acb->pmuB;
1084 mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
1085 ARCMSR_IOP2DRV_DATA_READ_OK |
1086 ARCMSR_IOP2DRV_CDB_DONE |
1087 ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
1088 writel(mask, reg->iop2drv_doorbell_mask);
1089 acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
1092 case ACB_ADAPTER_TYPE_C: {
1093 struct MessageUnit_C *reg = acb->pmuC;
1094 mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
1095 writel(intmask_org & mask, ®->host_int_mask);
1096 acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
1101 static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
1102 struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
1104 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1105 int8_t *psge = (int8_t *)&arcmsr_cdb->u;
1106 __le32 address_lo, address_hi;
1107 int arccdbsize = 0x30;
1110 struct scatterlist *sg;
1113 memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
1114 arcmsr_cdb->TargetID = pcmd->device->id;
1115 arcmsr_cdb->LUN = pcmd->device->lun;
1116 arcmsr_cdb->Function = 1;
1117 arcmsr_cdb->Context = 0;
1118 memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
1120 nseg = scsi_dma_map(pcmd);
1121 if (unlikely(nseg > acb->host->sg_tablesize || nseg < 0))
1123 scsi_for_each_sg(pcmd, sg, nseg, i) {
1124 /* Get the physical address of the current data pointer */
1125 length = cpu_to_le32(sg_dma_len(sg));
1126 address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
1127 address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
1128 if (address_hi == 0) {
1129 struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1131 pdma_sg->address = address_lo;
1132 pdma_sg->length = length;
1133 psge += sizeof (struct SG32ENTRY);
1134 arccdbsize += sizeof (struct SG32ENTRY);
1136 struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1138 pdma_sg->addresshigh = address_hi;
1139 pdma_sg->address = address_lo;
1140 pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
1141 psge += sizeof (struct SG64ENTRY);
1142 arccdbsize += sizeof (struct SG64ENTRY);
1145 arcmsr_cdb->sgcount = (uint8_t)nseg;
1146 arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
1147 arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
1148 if ( arccdbsize > 256)
1149 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1150 if (pcmd->sc_data_direction == DMA_TO_DEVICE)
1151 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1152 ccb->arc_cdb_size = arccdbsize;
1156 static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
1158 uint32_t cdb_phyaddr_pattern = ccb->cdb_phyaddr_pattern;
1159 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1160 atomic_inc(&acb->ccboutstandingcount);
1161 ccb->startdone = ARCMSR_CCB_START;
1162 switch (acb->adapter_type) {
1163 case ACB_ADAPTER_TYPE_A: {
1164 struct MessageUnit_A __iomem *reg = acb->pmuA;
1166 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
1167 writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
1168 ®->inbound_queueport);
1170 writel(cdb_phyaddr_pattern, ®->inbound_queueport);
1175 case ACB_ADAPTER_TYPE_B: {
1176 struct MessageUnit_B *reg = acb->pmuB;
1177 uint32_t ending_index, index = reg->postq_index;
1179 ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
1180 writel(0, ®->post_qbuffer[ending_index]);
1181 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1182 writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\
1183 ®->post_qbuffer[index]);
1185 writel(cdb_phyaddr_pattern, ®->post_qbuffer[index]);
1188 index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
1189 reg->postq_index = index;
1190 writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
1193 case ACB_ADAPTER_TYPE_C: {
1194 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
1195 uint32_t ccb_post_stamp, arc_cdb_size;
1197 arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
1198 ccb_post_stamp = (cdb_phyaddr_pattern | ((arc_cdb_size - 1) >> 6) | 1);
1199 if (acb->cdb_phyaddr_hi32) {
1200 writel(acb->cdb_phyaddr_hi32, &phbcmu->inbound_queueport_high);
1201 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1203 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1209 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1211 struct MessageUnit_A __iomem *reg = acb->pmuA;
1212 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1213 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
1214 if (!arcmsr_hba_wait_msgint_ready(acb)) {
1216 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1217 , acb->host->host_no);
1221 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1223 struct MessageUnit_B *reg = acb->pmuB;
1224 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1225 writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);
1227 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
1229 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1230 , acb->host->host_no);
1234 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *pACB)
1236 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
1237 pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
1238 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
1239 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
1240 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
1242 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1243 , pACB->host->host_no);
1247 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1249 switch (acb->adapter_type) {
1250 case ACB_ADAPTER_TYPE_A: {
1251 arcmsr_stop_hba_bgrb(acb);
1255 case ACB_ADAPTER_TYPE_B: {
1256 arcmsr_stop_hbb_bgrb(acb);
1259 case ACB_ADAPTER_TYPE_C: {
1260 arcmsr_stop_hbc_bgrb(acb);
1265 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
1267 dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
1270 void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1272 switch (acb->adapter_type) {
1273 case ACB_ADAPTER_TYPE_A: {
1274 struct MessageUnit_A __iomem *reg = acb->pmuA;
1275 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
1279 case ACB_ADAPTER_TYPE_B: {
1280 struct MessageUnit_B *reg = acb->pmuB;
1281 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
1284 case ACB_ADAPTER_TYPE_C: {
1285 struct MessageUnit_C __iomem *reg = acb->pmuC;
1286 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
1291 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1293 switch (acb->adapter_type) {
1294 case ACB_ADAPTER_TYPE_A: {
1295 struct MessageUnit_A __iomem *reg = acb->pmuA;
1297 ** push inbound doorbell tell iop, driver data write ok
1298 ** and wait reply on next hwinterrupt for next Qbuffer post
1300 writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, ®->inbound_doorbell);
1304 case ACB_ADAPTER_TYPE_B: {
1305 struct MessageUnit_B *reg = acb->pmuB;
1307 ** push inbound doorbell tell iop, driver data write ok
1308 ** and wait reply on next hwinterrupt for next Qbuffer post
1310 writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
1313 case ACB_ADAPTER_TYPE_C: {
1314 struct MessageUnit_C __iomem *reg = acb->pmuC;
1316 ** push inbound doorbell tell iop, driver data write ok
1317 ** and wait reply on next hwinterrupt for next Qbuffer post
1319 writel(ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK, ®->inbound_doorbell);
1325 struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
1327 struct QBUFFER __iomem *qbuffer = NULL;
1328 switch (acb->adapter_type) {
1330 case ACB_ADAPTER_TYPE_A: {
1331 struct MessageUnit_A __iomem *reg = acb->pmuA;
1332 qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer;
1336 case ACB_ADAPTER_TYPE_B: {
1337 struct MessageUnit_B *reg = acb->pmuB;
1338 qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
1341 case ACB_ADAPTER_TYPE_C: {
1342 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
1343 qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
1349 static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb)
1351 struct QBUFFER __iomem *pqbuffer = NULL;
1352 switch (acb->adapter_type) {
1354 case ACB_ADAPTER_TYPE_A: {
1355 struct MessageUnit_A __iomem *reg = acb->pmuA;
1356 pqbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer;
1360 case ACB_ADAPTER_TYPE_B: {
1361 struct MessageUnit_B *reg = acb->pmuB;
1362 pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
1365 case ACB_ADAPTER_TYPE_C: {
1366 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
1367 pqbuffer = (struct QBUFFER __iomem *)®->message_wbuffer;
1374 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1376 struct QBUFFER __iomem *prbuffer;
1377 struct QBUFFER *pQbuffer;
1378 uint8_t __iomem *iop_data;
1379 int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
1380 rqbuf_lastindex = acb->rqbuf_lastindex;
1381 rqbuf_firstindex = acb->rqbuf_firstindex;
1382 prbuffer = arcmsr_get_iop_rqbuffer(acb);
1383 iop_data = (uint8_t __iomem *)prbuffer->data;
1384 iop_len = prbuffer->data_len;
1385 my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1) & (ARCMSR_MAX_QBUFFER - 1);
1387 if (my_empty_len >= iop_len)
1389 while (iop_len > 0) {
1390 pQbuffer = (struct QBUFFER *)&acb->rqbuffer[rqbuf_lastindex];
1391 memcpy(pQbuffer, iop_data, 1);
1393 rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1397 acb->rqbuf_lastindex = rqbuf_lastindex;
1398 arcmsr_iop_message_read(acb);
1402 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1406 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1408 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
1409 if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1411 struct QBUFFER __iomem *pwbuffer;
1412 uint8_t __iomem *iop_data;
1413 int32_t allxfer_len = 0;
1415 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
1416 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1417 iop_data = (uint8_t __iomem *)pwbuffer->data;
1419 while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) && \
1420 (allxfer_len < 124)) {
1421 pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1422 memcpy(iop_data, pQbuffer, 1);
1423 acb->wqbuf_firstindex++;
1424 acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1428 pwbuffer->data_len = allxfer_len;
1430 arcmsr_iop_message_wrote(acb);
1433 if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1434 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1438 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1440 uint32_t outbound_doorbell;
1441 struct MessageUnit_A __iomem *reg = acb->pmuA;
1442 outbound_doorbell = readl(®->outbound_doorbell);
1443 writel(outbound_doorbell, ®->outbound_doorbell);
1444 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1445 arcmsr_iop2drv_data_wrote_handle(acb);
1448 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1449 arcmsr_iop2drv_data_read_handle(acb);
1452 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *pACB)
1454 uint32_t outbound_doorbell;
1455 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
1457 *******************************************************************
1458 ** Maybe here we need to check wrqbuffer_lock is lock or not
1459 ** DOORBELL: din! don!
1460 ** check if there are any mail need to pack from firmware
1461 *******************************************************************
1463 outbound_doorbell = readl(®->outbound_doorbell);
1464 writel(outbound_doorbell, ®->outbound_doorbell_clear);/*clear interrupt*/
1465 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1466 arcmsr_iop2drv_data_wrote_handle(pACB);
1468 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1469 arcmsr_iop2drv_data_read_handle(pACB);
1471 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1472 arcmsr_hbc_message_isr(pACB); /* messenger of "driver to iop commands" */
1476 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
1479 struct MessageUnit_A __iomem *reg = acb->pmuA;
1480 struct ARCMSR_CDB *pARCMSR_CDB;
1481 struct CommandControlBlock *pCCB;
1483 while ((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) {
1484 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
1485 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1486 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1487 arcmsr_drain_donequeue(acb, pCCB, error);
1490 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
1494 struct MessageUnit_B *reg = acb->pmuB;
1495 struct ARCMSR_CDB *pARCMSR_CDB;
1496 struct CommandControlBlock *pCCB;
1498 index = reg->doneq_index;
1499 while ((flag_ccb = readl(®->done_qbuffer[index])) != 0) {
1500 writel(0, ®->done_qbuffer[index]);
1501 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
1502 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1503 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1504 arcmsr_drain_donequeue(acb, pCCB, error);
1506 index %= ARCMSR_MAX_HBB_POSTQUEUE;
1507 reg->doneq_index = index;
1511 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
1513 struct MessageUnit_C *phbcmu;
1514 struct ARCMSR_CDB *arcmsr_cdb;
1515 struct CommandControlBlock *ccb;
1516 uint32_t flag_ccb, ccb_cdb_phy, throttling = 0;
1519 phbcmu = (struct MessageUnit_C *)acb->pmuC;
1520 /* areca cdb command done */
1521 /* Use correct offset and size for syncing */
1523 while (readl(&phbcmu->host_int_status) &
1524 ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR){
1525 /* check if command done with no error*/
1526 flag_ccb = readl(&phbcmu->outbound_queueport_low);
1527 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);/*frame must be 32 bytes aligned*/
1528 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
1529 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
1530 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
1531 /* check if command done with no error */
1532 arcmsr_drain_donequeue(acb, ccb, error);
1533 if (throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
1534 writel(ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING, &phbcmu->inbound_doorbell);
1541 **********************************************************************************
1542 ** Handle a message interrupt
1544 ** The only message interrupt we expect is in response to a query for the current adapter config.
1545 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
1546 **********************************************************************************
1548 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb)
1550 struct MessageUnit_A *reg = acb->pmuA;
1551 /*clear interrupt and message state*/
1552 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus);
1553 schedule_work(&acb->arcmsr_do_message_isr_bh);
1555 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb)
1557 struct MessageUnit_B *reg = acb->pmuB;
1559 /*clear interrupt and message state*/
1560 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
1561 schedule_work(&acb->arcmsr_do_message_isr_bh);
1564 **********************************************************************************
1565 ** Handle a message interrupt
1567 ** The only message interrupt we expect is in response to a query for the
1568 ** current adapter config.
1569 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
1570 **********************************************************************************
1572 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb)
1574 struct MessageUnit_C *reg = acb->pmuC;
1575 /*clear interrupt and message state*/
1576 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);
1577 schedule_work(&acb->arcmsr_do_message_isr_bh);
1580 static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
1582 uint32_t outbound_intstatus;
1583 struct MessageUnit_A __iomem *reg = acb->pmuA;
1584 outbound_intstatus = readl(®->outbound_intstatus) &
1585 acb->outbound_int_enable;
1586 if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) {
1589 writel(outbound_intstatus, ®->outbound_intstatus);
1590 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
1591 arcmsr_hba_doorbell_isr(acb);
1593 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
1594 arcmsr_hba_postqueue_isr(acb);
1596 if(outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
1597 /* messenger of "driver to iop commands" */
1598 arcmsr_hba_message_isr(acb);
1603 static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb)
1605 uint32_t outbound_doorbell;
1606 struct MessageUnit_B *reg = acb->pmuB;
1607 outbound_doorbell = readl(reg->iop2drv_doorbell) &
1608 acb->outbound_int_enable;
1609 if (!outbound_doorbell)
1612 writel(~outbound_doorbell, reg->iop2drv_doorbell);
1613 /*in case the last action of doorbell interrupt clearance is cached,
1614 this action can push HW to write down the clear bit*/
1615 readl(reg->iop2drv_doorbell);
1616 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
1617 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
1618 arcmsr_iop2drv_data_wrote_handle(acb);
1620 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
1621 arcmsr_iop2drv_data_read_handle(acb);
1623 if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
1624 arcmsr_hbb_postqueue_isr(acb);
1626 if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
1627 /* messenger of "driver to iop commands" */
1628 arcmsr_hbb_message_isr(acb);
1633 static int arcmsr_handle_hbc_isr(struct AdapterControlBlock *pACB)
1635 uint32_t host_interrupt_status;
1636 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
1638 *********************************************
1639 ** check outbound intstatus
1640 *********************************************
1642 host_interrupt_status = readl(&phbcmu->host_int_status);
1643 if (!host_interrupt_status) {
1644 /*it must be share irq*/
1647 /* MU ioctl transfer doorbell interrupts*/
1648 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
1649 arcmsr_hbc_doorbell_isr(pACB); /* messenger of "ioctl message read write" */
1651 /* MU post queue interrupts*/
1652 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
1653 arcmsr_hbc_postqueue_isr(pACB); /* messenger of "scsi commands" */
1657 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
1659 switch (acb->adapter_type) {
1660 case ACB_ADAPTER_TYPE_A: {
1661 if (arcmsr_handle_hba_isr(acb)) {
1667 case ACB_ADAPTER_TYPE_B: {
1668 if (arcmsr_handle_hbb_isr(acb)) {
1673 case ACB_ADAPTER_TYPE_C: {
1674 if (arcmsr_handle_hbc_isr(acb)) {
1682 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
1685 /* stop adapter background rebuild */
1686 if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
1687 uint32_t intmask_org;
1688 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1689 intmask_org = arcmsr_disable_outbound_ints(acb);
1690 arcmsr_stop_adapter_bgrb(acb);
1691 arcmsr_flush_adapter_cache(acb);
1692 arcmsr_enable_outbound_ints(acb, intmask_org);
1697 void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb)
1699 int32_t wqbuf_firstindex, wqbuf_lastindex;
1701 struct QBUFFER __iomem *pwbuffer;
1702 uint8_t __iomem *iop_data;
1703 int32_t allxfer_len = 0;
1704 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1705 iop_data = (uint8_t __iomem *)pwbuffer->data;
1706 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
1707 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
1708 wqbuf_firstindex = acb->wqbuf_firstindex;
1709 wqbuf_lastindex = acb->wqbuf_lastindex;
1710 while ((wqbuf_firstindex != wqbuf_lastindex) && (allxfer_len < 124)) {
1711 pQbuffer = &acb->wqbuffer[wqbuf_firstindex];
1712 memcpy(iop_data, pQbuffer, 1);
1714 wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1718 acb->wqbuf_firstindex = wqbuf_firstindex;
1719 pwbuffer->data_len = allxfer_len;
1720 arcmsr_iop_message_wrote(acb);
1724 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
1725 struct scsi_cmnd *cmd)
1727 struct CMD_MESSAGE_FIELD *pcmdmessagefld;
1728 int retvalue = 0, transfer_len = 0;
1730 struct scatterlist *sg;
1731 uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 |
1732 (uint32_t ) cmd->cmnd[6] << 16 |
1733 (uint32_t ) cmd->cmnd[7] << 8 |
1734 (uint32_t ) cmd->cmnd[8];
1735 /* 4 bytes: Areca io control code */
1736 sg = scsi_sglist(cmd);
1737 buffer = kmap_atomic(sg_page(sg)) + sg->offset;
1738 if (scsi_sg_count(cmd) > 1) {
1739 retvalue = ARCMSR_MESSAGE_FAIL;
1742 transfer_len += sg->length;
1744 if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
1745 retvalue = ARCMSR_MESSAGE_FAIL;
1748 pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
1749 switch(controlcode) {
1751 case ARCMSR_MESSAGE_READ_RQBUFFER: {
1752 unsigned char *ver_addr;
1753 uint8_t *pQbuffer, *ptmpQbuffer;
1754 int32_t allxfer_len = 0;
1756 ver_addr = kmalloc(1032, GFP_ATOMIC);
1758 retvalue = ARCMSR_MESSAGE_FAIL;
1762 ptmpQbuffer = ver_addr;
1763 while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
1764 && (allxfer_len < 1031)) {
1765 pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
1766 memcpy(ptmpQbuffer, pQbuffer, 1);
1767 acb->rqbuf_firstindex++;
1768 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1772 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1774 struct QBUFFER __iomem *prbuffer;
1775 uint8_t __iomem *iop_data;
1778 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1779 prbuffer = arcmsr_get_iop_rqbuffer(acb);
1780 iop_data = prbuffer->data;
1781 iop_len = readl(&prbuffer->data_len);
1782 while (iop_len > 0) {
1783 acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
1784 acb->rqbuf_lastindex++;
1785 acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1789 arcmsr_iop_message_read(acb);
1791 memcpy(pcmdmessagefld->messagedatabuffer, ver_addr, allxfer_len);
1792 pcmdmessagefld->cmdmessage.Length = allxfer_len;
1793 if(acb->fw_flag == FW_DEADLOCK) {
1794 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1796 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1802 case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
1803 unsigned char *ver_addr;
1804 int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
1805 uint8_t *pQbuffer, *ptmpuserbuffer;
1807 ver_addr = kmalloc(1032, GFP_ATOMIC);
1809 retvalue = ARCMSR_MESSAGE_FAIL;
1812 if(acb->fw_flag == FW_DEADLOCK) {
1813 pcmdmessagefld->cmdmessage.ReturnCode =
1814 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1816 pcmdmessagefld->cmdmessage.ReturnCode =
1817 ARCMSR_MESSAGE_RETURNCODE_OK;
1819 ptmpuserbuffer = ver_addr;
1820 user_len = pcmdmessagefld->cmdmessage.Length;
1821 memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len);
1822 wqbuf_lastindex = acb->wqbuf_lastindex;
1823 wqbuf_firstindex = acb->wqbuf_firstindex;
1824 if (wqbuf_lastindex != wqbuf_firstindex) {
1825 struct SENSE_DATA *sensebuffer =
1826 (struct SENSE_DATA *)cmd->sense_buffer;
1827 arcmsr_post_ioctldata2iop(acb);
1828 /* has error report sensedata */
1829 sensebuffer->ErrorCode = 0x70;
1830 sensebuffer->SenseKey = ILLEGAL_REQUEST;
1831 sensebuffer->AdditionalSenseLength = 0x0A;
1832 sensebuffer->AdditionalSenseCode = 0x20;
1833 sensebuffer->Valid = 1;
1834 retvalue = ARCMSR_MESSAGE_FAIL;
1836 my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
1837 &(ARCMSR_MAX_QBUFFER - 1);
1838 if (my_empty_len >= user_len) {
1839 while (user_len > 0) {
1841 &acb->wqbuffer[acb->wqbuf_lastindex];
1842 memcpy(pQbuffer, ptmpuserbuffer, 1);
1843 acb->wqbuf_lastindex++;
1844 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1848 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
1850 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
1851 arcmsr_post_ioctldata2iop(acb);
1854 /* has error report sensedata */
1855 struct SENSE_DATA *sensebuffer =
1856 (struct SENSE_DATA *)cmd->sense_buffer;
1857 sensebuffer->ErrorCode = 0x70;
1858 sensebuffer->SenseKey = ILLEGAL_REQUEST;
1859 sensebuffer->AdditionalSenseLength = 0x0A;
1860 sensebuffer->AdditionalSenseCode = 0x20;
1861 sensebuffer->Valid = 1;
1862 retvalue = ARCMSR_MESSAGE_FAIL;
1869 case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
1870 uint8_t *pQbuffer = acb->rqbuffer;
1871 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1872 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1873 arcmsr_iop_message_read(acb);
1875 acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
1876 acb->rqbuf_firstindex = 0;
1877 acb->rqbuf_lastindex = 0;
1878 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1879 if(acb->fw_flag == FW_DEADLOCK) {
1880 pcmdmessagefld->cmdmessage.ReturnCode =
1881 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1883 pcmdmessagefld->cmdmessage.ReturnCode =
1884 ARCMSR_MESSAGE_RETURNCODE_OK;
1889 case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
1890 uint8_t *pQbuffer = acb->wqbuffer;
1891 if(acb->fw_flag == FW_DEADLOCK) {
1892 pcmdmessagefld->cmdmessage.ReturnCode =
1893 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1895 pcmdmessagefld->cmdmessage.ReturnCode =
1896 ARCMSR_MESSAGE_RETURNCODE_OK;
1899 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1900 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1901 arcmsr_iop_message_read(acb);
1904 (ACB_F_MESSAGE_WQBUFFER_CLEARED |
1905 ACB_F_MESSAGE_WQBUFFER_READED);
1906 acb->wqbuf_firstindex = 0;
1907 acb->wqbuf_lastindex = 0;
1908 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1912 case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
1915 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1916 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1917 arcmsr_iop_message_read(acb);
1920 (ACB_F_MESSAGE_WQBUFFER_CLEARED
1921 | ACB_F_MESSAGE_RQBUFFER_CLEARED
1922 | ACB_F_MESSAGE_WQBUFFER_READED);
1923 acb->rqbuf_firstindex = 0;
1924 acb->rqbuf_lastindex = 0;
1925 acb->wqbuf_firstindex = 0;
1926 acb->wqbuf_lastindex = 0;
1927 pQbuffer = acb->rqbuffer;
1928 memset(pQbuffer, 0, sizeof(struct QBUFFER));
1929 pQbuffer = acb->wqbuffer;
1930 memset(pQbuffer, 0, sizeof(struct QBUFFER));
1931 if(acb->fw_flag == FW_DEADLOCK) {
1932 pcmdmessagefld->cmdmessage.ReturnCode =
1933 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1935 pcmdmessagefld->cmdmessage.ReturnCode =
1936 ARCMSR_MESSAGE_RETURNCODE_OK;
1941 case ARCMSR_MESSAGE_RETURN_CODE_3F: {
1942 if(acb->fw_flag == FW_DEADLOCK) {
1943 pcmdmessagefld->cmdmessage.ReturnCode =
1944 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1946 pcmdmessagefld->cmdmessage.ReturnCode =
1947 ARCMSR_MESSAGE_RETURNCODE_3F;
1951 case ARCMSR_MESSAGE_SAY_HELLO: {
1952 int8_t *hello_string = "Hello! I am ARCMSR";
1953 if(acb->fw_flag == FW_DEADLOCK) {
1954 pcmdmessagefld->cmdmessage.ReturnCode =
1955 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1957 pcmdmessagefld->cmdmessage.ReturnCode =
1958 ARCMSR_MESSAGE_RETURNCODE_OK;
1960 memcpy(pcmdmessagefld->messagedatabuffer, hello_string
1961 , (int16_t)strlen(hello_string));
1965 case ARCMSR_MESSAGE_SAY_GOODBYE:
1966 if(acb->fw_flag == FW_DEADLOCK) {
1967 pcmdmessagefld->cmdmessage.ReturnCode =
1968 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1970 arcmsr_iop_parking(acb);
1973 case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
1974 if(acb->fw_flag == FW_DEADLOCK) {
1975 pcmdmessagefld->cmdmessage.ReturnCode =
1976 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1978 arcmsr_flush_adapter_cache(acb);
1982 retvalue = ARCMSR_MESSAGE_FAIL;
1985 sg = scsi_sglist(cmd);
1986 kunmap_atomic(buffer - sg->offset);
1990 static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
1992 struct list_head *head = &acb->ccb_free_list;
1993 struct CommandControlBlock *ccb = NULL;
1994 unsigned long flags;
1995 spin_lock_irqsave(&acb->ccblist_lock, flags);
1996 if (!list_empty(head)) {
1997 ccb = list_entry(head->next, struct CommandControlBlock, list);
1998 list_del_init(&ccb->list);
2000 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2003 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2007 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
2008 struct scsi_cmnd *cmd)
2010 switch (cmd->cmnd[0]) {
2012 unsigned char inqdata[36];
2014 struct scatterlist *sg;
2016 if (cmd->device->lun) {
2017 cmd->result = (DID_TIME_OUT << 16);
2018 cmd->scsi_done(cmd);
2021 inqdata[0] = TYPE_PROCESSOR;
2022 /* Periph Qualifier & Periph Dev Type */
2024 /* rem media bit & Dev Type Modifier */
2026 /* ISO, ECMA, & ANSI versions */
2028 /* length of additional data */
2029 strncpy(&inqdata[8], "Areca ", 8);
2030 /* Vendor Identification */
2031 strncpy(&inqdata[16], "RAID controller ", 16);
2032 /* Product Identification */
2033 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
2035 sg = scsi_sglist(cmd);
2036 buffer = kmap_atomic(sg_page(sg)) + sg->offset;
2038 memcpy(buffer, inqdata, sizeof(inqdata));
2039 sg = scsi_sglist(cmd);
2040 kunmap_atomic(buffer - sg->offset);
2042 cmd->scsi_done(cmd);
2047 if (arcmsr_iop_message_xfer(acb, cmd))
2048 cmd->result = (DID_ERROR << 16);
2049 cmd->scsi_done(cmd);
2053 cmd->scsi_done(cmd);
2057 static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
2058 void (* done)(struct scsi_cmnd *))
2060 struct Scsi_Host *host = cmd->device->host;
2061 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
2062 struct CommandControlBlock *ccb;
2063 int target = cmd->device->id;
2064 int lun = cmd->device->lun;
2065 uint8_t scsicmd = cmd->cmnd[0];
2066 cmd->scsi_done = done;
2067 cmd->host_scribble = NULL;
2069 if ((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)){
2070 if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2071 cmd->result = (DID_NO_CONNECT << 16);
2073 cmd->scsi_done(cmd);
2077 /* virtual device for iop message transfer */
2078 arcmsr_handle_virtual_command(acb, cmd);
2081 if (atomic_read(&acb->ccboutstandingcount) >=
2082 ARCMSR_MAX_OUTSTANDING_CMD)
2083 return SCSI_MLQUEUE_HOST_BUSY;
2084 ccb = arcmsr_get_freeccb(acb);
2086 return SCSI_MLQUEUE_HOST_BUSY;
2087 if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
2088 cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
2089 cmd->scsi_done(cmd);
2092 arcmsr_post_ccb(acb, ccb);
2096 static DEF_SCSI_QCMD(arcmsr_queue_command)
2098 static bool arcmsr_get_hba_config(struct AdapterControlBlock *acb)
2100 struct MessageUnit_A __iomem *reg = acb->pmuA;
2101 char *acb_firm_model = acb->firm_model;
2102 char *acb_firm_version = acb->firm_version;
2103 char *acb_device_map = acb->device_map;
2104 char __iomem *iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]);
2105 char __iomem *iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]);
2106 char __iomem *iop_device_map = (char __iomem *)(®->message_rwbuffer[21]);
2108 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2109 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2110 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2111 miscellaneous data' timeout \n", acb->host->host_no);
2116 *acb_firm_model = readb(iop_firm_model);
2124 *acb_firm_version = readb(iop_firm_version);
2132 *acb_device_map = readb(iop_device_map);
2137 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2141 acb->signature = readl(®->message_rwbuffer[0]);
2142 acb->firm_request_len = readl(®->message_rwbuffer[1]);
2143 acb->firm_numbers_queue = readl(®->message_rwbuffer[2]);
2144 acb->firm_sdram_size = readl(®->message_rwbuffer[3]);
2145 acb->firm_hd_channels = readl(®->message_rwbuffer[4]);
2146 acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2149 static bool arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
2151 struct MessageUnit_B *reg = acb->pmuB;
2152 struct pci_dev *pdev = acb->pdev;
2154 dma_addr_t dma_coherent_handle;
2155 char *acb_firm_model = acb->firm_model;
2156 char *acb_firm_version = acb->firm_version;
2157 char *acb_device_map = acb->device_map;
2158 char __iomem *iop_firm_model;
2159 /*firm_model,15,60-67*/
2160 char __iomem *iop_firm_version;
2161 /*firm_version,17,68-83*/
2162 char __iomem *iop_device_map;
2163 /*firm_version,21,84-99*/
2165 dma_coherent = dma_alloc_coherent(&pdev->dev, sizeof(struct MessageUnit_B), &dma_coherent_handle, GFP_KERNEL);
2167 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error for hbb mu\n", acb->host->host_no);
2170 acb->dma_coherent_handle_hbb_mu = dma_coherent_handle;
2171 reg = (struct MessageUnit_B *)dma_coherent;
2173 reg->drv2iop_doorbell= (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL);
2174 reg->drv2iop_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL_MASK);
2175 reg->iop2drv_doorbell = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL);
2176 reg->iop2drv_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL_MASK);
2177 reg->message_wbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_WBUFFER);
2178 reg->message_rbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RBUFFER);
2179 reg->message_rwbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RWBUFFER);
2180 iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]); /*firm_model,15,60-67*/
2181 iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]); /*firm_version,17,68-83*/
2182 iop_device_map = (char __iomem *)(®->message_rwbuffer[21]); /*firm_version,21,84-99*/
2184 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
2185 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2186 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2187 miscellaneous data' timeout \n", acb->host->host_no);
2192 *acb_firm_model = readb(iop_firm_model);
2199 *acb_firm_version = readb(iop_firm_version);
2207 *acb_device_map = readb(iop_device_map);
2213 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2218 acb->signature = readl(®->message_rwbuffer[1]);
2219 /*firm_signature,1,00-03*/
2220 acb->firm_request_len = readl(®->message_rwbuffer[2]);
2221 /*firm_request_len,1,04-07*/
2222 acb->firm_numbers_queue = readl(®->message_rwbuffer[3]);
2223 /*firm_numbers_queue,2,08-11*/
2224 acb->firm_sdram_size = readl(®->message_rwbuffer[4]);
2225 /*firm_sdram_size,3,12-15*/
2226 acb->firm_hd_channels = readl(®->message_rwbuffer[5]);
2227 /*firm_ide_channels,4,16-19*/
2228 acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2229 /*firm_ide_channels,4,16-19*/
2233 static bool arcmsr_get_hbc_config(struct AdapterControlBlock *pACB)
2235 uint32_t intmask_org, Index, firmware_state = 0;
2236 struct MessageUnit_C *reg = pACB->pmuC;
2237 char *acb_firm_model = pACB->firm_model;
2238 char *acb_firm_version = pACB->firm_version;
2239 char *iop_firm_model = (char *)(®->msgcode_rwbuffer[15]); /*firm_model,15,60-67*/
2240 char *iop_firm_version = (char *)(®->msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
2242 /* disable all outbound interrupt */
2243 intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
2244 writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
2245 /* wait firmware ready */
2247 firmware_state = readl(®->outbound_msgaddr1);
2248 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
2249 /* post "get config" instruction */
2250 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2251 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2252 /* wait message ready */
2253 for (Index = 0; Index < 2000; Index++) {
2254 if (readl(®->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
2255 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);/*clear interrupt*/
2260 if (Index >= 2000) {
2261 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2262 miscellaneous data' timeout \n", pACB->host->host_no);
2267 *acb_firm_model = readb(iop_firm_model);
2274 *acb_firm_version = readb(iop_firm_version);
2279 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2280 pACB->host->host_no,
2283 pACB->firm_request_len = readl(®->msgcode_rwbuffer[1]); /*firm_request_len,1,04-07*/
2284 pACB->firm_numbers_queue = readl(®->msgcode_rwbuffer[2]); /*firm_numbers_queue,2,08-11*/
2285 pACB->firm_sdram_size = readl(®->msgcode_rwbuffer[3]); /*firm_sdram_size,3,12-15*/
2286 pACB->firm_hd_channels = readl(®->msgcode_rwbuffer[4]); /*firm_ide_channels,4,16-19*/
2287 pACB->firm_cfg_version = readl(®->msgcode_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2288 /*all interrupt service will be enable at arcmsr_iop_init*/
2291 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
2293 if (acb->adapter_type == ACB_ADAPTER_TYPE_A)
2294 return arcmsr_get_hba_config(acb);
2295 else if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
2296 return arcmsr_get_hbb_config(acb);
2298 return arcmsr_get_hbc_config(acb);
2301 static int arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
2302 struct CommandControlBlock *poll_ccb)
2304 struct MessageUnit_A __iomem *reg = acb->pmuA;
2305 struct CommandControlBlock *ccb;
2306 struct ARCMSR_CDB *arcmsr_cdb;
2307 uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
2310 polling_hba_ccb_retry:
2312 outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable;
2313 writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
2315 if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) {
2321 if (poll_count > 100){
2325 goto polling_hba_ccb_retry;
2328 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
2329 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2330 poll_ccb_done = (ccb == poll_ccb) ? 1:0;
2331 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
2332 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
2333 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2334 " poll command abort successfully \n"
2335 , acb->host->host_no
2336 , ccb->pcmd->device->id
2337 , ccb->pcmd->device->lun
2339 ccb->pcmd->result = DID_ABORT << 16;
2340 arcmsr_ccb_complete(ccb);
2343 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2344 " command done ccb = '0x%p'"
2345 "ccboutstandingcount = %d \n"
2346 , acb->host->host_no
2348 , atomic_read(&acb->ccboutstandingcount));
2351 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2352 arcmsr_report_ccb_state(acb, ccb, error);
2357 static int arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb,
2358 struct CommandControlBlock *poll_ccb)
2360 struct MessageUnit_B *reg = acb->pmuB;
2361 struct ARCMSR_CDB *arcmsr_cdb;
2362 struct CommandControlBlock *ccb;
2363 uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
2366 polling_hbb_ccb_retry:
2369 /* clear doorbell interrupt */
2370 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2372 index = reg->doneq_index;
2373 if ((flag_ccb = readl(®->done_qbuffer[index])) == 0) {
2379 if (poll_count > 100){
2383 goto polling_hbb_ccb_retry;
2386 writel(0, ®->done_qbuffer[index]);
2388 /*if last index number set it to 0 */
2389 index %= ARCMSR_MAX_HBB_POSTQUEUE;
2390 reg->doneq_index = index;
2391 /* check if command done with no error*/
2392 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
2393 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2394 poll_ccb_done = (ccb == poll_ccb) ? 1:0;
2395 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
2396 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
2397 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2398 " poll command abort successfully \n"
2400 ,ccb->pcmd->device->id
2401 ,ccb->pcmd->device->lun
2403 ccb->pcmd->result = DID_ABORT << 16;
2404 arcmsr_ccb_complete(ccb);
2407 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2408 " command done ccb = '0x%p'"
2409 "ccboutstandingcount = %d \n"
2410 , acb->host->host_no
2412 , atomic_read(&acb->ccboutstandingcount));
2415 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2416 arcmsr_report_ccb_state(acb, ccb, error);
2421 static int arcmsr_polling_hbc_ccbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_ccb)
2423 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2424 uint32_t flag_ccb, ccb_cdb_phy;
2425 struct ARCMSR_CDB *arcmsr_cdb;
2427 struct CommandControlBlock *pCCB;
2428 uint32_t poll_ccb_done = 0, poll_count = 0;
2430 polling_hbc_ccb_retry:
2433 if ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) == 0) {
2434 if (poll_ccb_done) {
2439 if (poll_count > 100) {
2443 goto polling_hbc_ccb_retry;
2446 flag_ccb = readl(®->outbound_queueport_low);
2447 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
2448 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);/*frame must be 32 bytes aligned*/
2449 pCCB = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2450 poll_ccb_done = (pCCB == poll_ccb) ? 1 : 0;
2451 /* check ifcommand done with no error*/
2452 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
2453 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
2454 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2455 " poll command abort successfully \n"
2456 , acb->host->host_no
2457 , pCCB->pcmd->device->id
2458 , pCCB->pcmd->device->lun
2460 pCCB->pcmd->result = DID_ABORT << 16;
2461 arcmsr_ccb_complete(pCCB);
2464 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2465 " command done ccb = '0x%p'"
2466 "ccboutstandingcount = %d \n"
2467 , acb->host->host_no
2469 , atomic_read(&acb->ccboutstandingcount));
2472 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
2473 arcmsr_report_ccb_state(acb, pCCB, error);
2477 static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
2478 struct CommandControlBlock *poll_ccb)
2481 switch (acb->adapter_type) {
2483 case ACB_ADAPTER_TYPE_A: {
2484 rtn = arcmsr_polling_hba_ccbdone(acb, poll_ccb);
2488 case ACB_ADAPTER_TYPE_B: {
2489 rtn = arcmsr_polling_hbb_ccbdone(acb, poll_ccb);
2492 case ACB_ADAPTER_TYPE_C: {
2493 rtn = arcmsr_polling_hbc_ccbdone(acb, poll_ccb);
2499 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
2501 uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
2502 dma_addr_t dma_coherent_handle;
2504 ********************************************************************
2505 ** here we need to tell iop 331 our freeccb.HighPart
2506 ** if freeccb.HighPart is not zero
2507 ********************************************************************
2509 dma_coherent_handle = acb->dma_coherent_handle;
2510 cdb_phyaddr = (uint32_t)(dma_coherent_handle);
2511 cdb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16);
2512 acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
2514 ***********************************************************************
2515 ** if adapter type B, set window of "post command Q"
2516 ***********************************************************************
2518 switch (acb->adapter_type) {
2520 case ACB_ADAPTER_TYPE_A: {
2521 if (cdb_phyaddr_hi32 != 0) {
2522 struct MessageUnit_A __iomem *reg = acb->pmuA;
2523 uint32_t intmask_org;
2524 intmask_org = arcmsr_disable_outbound_ints(acb);
2525 writel(ARCMSR_SIGNATURE_SET_CONFIG, \
2526 ®->message_rwbuffer[0]);
2527 writel(cdb_phyaddr_hi32, ®->message_rwbuffer[1]);
2528 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \
2529 ®->inbound_msgaddr0);
2530 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2531 printk(KERN_NOTICE "arcmsr%d: ""set ccb high \
2532 part physical address timeout\n",
2533 acb->host->host_no);
2536 arcmsr_enable_outbound_ints(acb, intmask_org);
2541 case ACB_ADAPTER_TYPE_B: {
2542 unsigned long post_queue_phyaddr;
2543 uint32_t __iomem *rwbuffer;
2545 struct MessageUnit_B *reg = acb->pmuB;
2546 uint32_t intmask_org;
2547 intmask_org = arcmsr_disable_outbound_ints(acb);
2548 reg->postq_index = 0;
2549 reg->doneq_index = 0;
2550 writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell);
2551 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2552 printk(KERN_NOTICE "arcmsr%d:can not set diver mode\n", \
2553 acb->host->host_no);
2556 post_queue_phyaddr = acb->dma_coherent_handle_hbb_mu;
2557 rwbuffer = reg->message_rwbuffer;
2558 /* driver "set config" signature */
2559 writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
2560 /* normal should be zero */
2561 writel(cdb_phyaddr_hi32, rwbuffer++);
2562 /* postQ size (256 + 8)*4 */
2563 writel(post_queue_phyaddr, rwbuffer++);
2564 /* doneQ size (256 + 8)*4 */
2565 writel(post_queue_phyaddr + 1056, rwbuffer++);
2566 /* ccb maxQ size must be --> [(256 + 8)*4]*/
2567 writel(1056, rwbuffer);
2569 writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
2570 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2571 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
2572 timeout \n",acb->host->host_no);
2575 arcmsr_hbb_enable_driver_mode(acb);
2576 arcmsr_enable_outbound_ints(acb, intmask_org);
2579 case ACB_ADAPTER_TYPE_C: {
2580 if (cdb_phyaddr_hi32 != 0) {
2581 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2583 printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
2584 acb->adapter_index, cdb_phyaddr_hi32);
2585 writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
2586 writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[1]);
2587 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
2588 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2589 if (!arcmsr_hbc_wait_msgint_ready(acb)) {
2590 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
2591 timeout \n", acb->host->host_no);
2600 static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
2602 uint32_t firmware_state = 0;
2603 switch (acb->adapter_type) {
2605 case ACB_ADAPTER_TYPE_A: {
2606 struct MessageUnit_A __iomem *reg = acb->pmuA;
2608 firmware_state = readl(®->outbound_msgaddr1);
2609 } while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0);
2613 case ACB_ADAPTER_TYPE_B: {
2614 struct MessageUnit_B *reg = acb->pmuB;
2616 firmware_state = readl(reg->iop2drv_doorbell);
2617 } while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0);
2618 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
2621 case ACB_ADAPTER_TYPE_C: {
2622 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2624 firmware_state = readl(®->outbound_msgaddr1);
2625 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
2630 static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb)
2632 struct MessageUnit_A __iomem *reg = acb->pmuA;
2633 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
2634 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2637 acb->fw_flag = FW_NORMAL;
2638 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)){
2639 atomic_set(&acb->rq_map_token, 16);
2641 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2642 if (atomic_dec_and_test(&acb->rq_map_token)) {
2643 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2646 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2647 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2652 static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb)
2654 struct MessageUnit_B __iomem *reg = acb->pmuB;
2655 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
2656 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2659 acb->fw_flag = FW_NORMAL;
2660 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
2661 atomic_set(&acb->rq_map_token, 16);
2663 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2664 if (atomic_dec_and_test(&acb->rq_map_token)) {
2665 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2668 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
2669 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2674 static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb)
2676 struct MessageUnit_C __iomem *reg = acb->pmuC;
2677 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
2678 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2681 acb->fw_flag = FW_NORMAL;
2682 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
2683 atomic_set(&acb->rq_map_token, 16);
2685 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2686 if (atomic_dec_and_test(&acb->rq_map_token)) {
2687 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2690 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2691 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2692 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2697 static void arcmsr_request_device_map(unsigned long pacb)
2699 struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb;
2700 switch (acb->adapter_type) {
2701 case ACB_ADAPTER_TYPE_A: {
2702 arcmsr_request_hba_device_map(acb);
2705 case ACB_ADAPTER_TYPE_B: {
2706 arcmsr_request_hbb_device_map(acb);
2709 case ACB_ADAPTER_TYPE_C: {
2710 arcmsr_request_hbc_device_map(acb);
2715 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
2717 struct MessageUnit_A __iomem *reg = acb->pmuA;
2718 acb->acb_flags |= ACB_F_MSG_START_BGRB;
2719 writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0);
2720 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2721 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2722 rebulid' timeout \n", acb->host->host_no);
2726 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
2728 struct MessageUnit_B *reg = acb->pmuB;
2729 acb->acb_flags |= ACB_F_MSG_START_BGRB;
2730 writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
2731 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2732 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2733 rebulid' timeout \n",acb->host->host_no);
2737 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *pACB)
2739 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
2740 pACB->acb_flags |= ACB_F_MSG_START_BGRB;
2741 writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
2742 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
2743 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
2744 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2745 rebulid' timeout \n", pACB->host->host_no);
2749 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
2751 switch (acb->adapter_type) {
2752 case ACB_ADAPTER_TYPE_A:
2753 arcmsr_start_hba_bgrb(acb);
2755 case ACB_ADAPTER_TYPE_B:
2756 arcmsr_start_hbb_bgrb(acb);
2758 case ACB_ADAPTER_TYPE_C:
2759 arcmsr_start_hbc_bgrb(acb);
2763 static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
2765 switch (acb->adapter_type) {
2766 case ACB_ADAPTER_TYPE_A: {
2767 struct MessageUnit_A __iomem *reg = acb->pmuA;
2768 uint32_t outbound_doorbell;
2769 /* empty doorbell Qbuffer if door bell ringed */
2770 outbound_doorbell = readl(®->outbound_doorbell);
2771 /*clear doorbell interrupt */
2772 writel(outbound_doorbell, ®->outbound_doorbell);
2773 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
2777 case ACB_ADAPTER_TYPE_B: {
2778 struct MessageUnit_B *reg = acb->pmuB;
2779 /*clear interrupt and message state*/
2780 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2781 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
2782 /* let IOP know data has been read */
2785 case ACB_ADAPTER_TYPE_C: {
2786 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2787 uint32_t outbound_doorbell;
2788 /* empty doorbell Qbuffer if door bell ringed */
2789 outbound_doorbell = readl(®->outbound_doorbell);
2790 writel(outbound_doorbell, ®->outbound_doorbell_clear);
2791 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
2796 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
2798 switch (acb->adapter_type) {
2799 case ACB_ADAPTER_TYPE_A:
2801 case ACB_ADAPTER_TYPE_B:
2803 struct MessageUnit_B *reg = acb->pmuB;
2804 writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
2805 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2806 printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
2811 case ACB_ADAPTER_TYPE_C:
2817 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
2821 struct MessageUnit_A __iomem *pmuA = acb->pmuA;
2822 struct MessageUnit_C __iomem *pmuC = acb->pmuC;
2824 /* backup pci config data */
2825 printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no);
2826 for (i = 0; i < 64; i++) {
2827 pci_read_config_byte(acb->pdev, i, &value[i]);
2829 /* hardware reset signal */
2830 if ((acb->dev_id == 0x1680)) {
2831 writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
2832 } else if ((acb->dev_id == 0x1880)) {
2835 writel(0xF, &pmuC->write_sequence);
2836 writel(0x4, &pmuC->write_sequence);
2837 writel(0xB, &pmuC->write_sequence);
2838 writel(0x2, &pmuC->write_sequence);
2839 writel(0x7, &pmuC->write_sequence);
2840 writel(0xD, &pmuC->write_sequence);
2841 } while (((readl(&pmuC->host_diagnostic) & ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
2842 writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
2844 pci_write_config_byte(acb->pdev, 0x84, 0x20);
2847 /* write back pci config data */
2848 for (i = 0; i < 64; i++) {
2849 pci_write_config_byte(acb->pdev, i, value[i]);
2854 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
2856 uint32_t intmask_org;
2857 /* disable all outbound interrupt */
2858 intmask_org = arcmsr_disable_outbound_ints(acb);
2859 arcmsr_wait_firmware_ready(acb);
2860 arcmsr_iop_confirm(acb);
2861 /*start background rebuild*/
2862 arcmsr_start_adapter_bgrb(acb);
2863 /* empty doorbell Qbuffer if door bell ringed */
2864 arcmsr_clear_doorbell_queue_buffer(acb);
2865 arcmsr_enable_eoi_mode(acb);
2866 /* enable outbound Post Queue,outbound doorbell Interrupt */
2867 arcmsr_enable_outbound_ints(acb, intmask_org);
2868 acb->acb_flags |= ACB_F_IOP_INITED;
2871 static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
2873 struct CommandControlBlock *ccb;
2874 uint32_t intmask_org;
2875 uint8_t rtnval = 0x00;
2877 unsigned long flags;
2879 if (atomic_read(&acb->ccboutstandingcount) != 0) {
2880 /* disable all outbound interrupt */
2881 intmask_org = arcmsr_disable_outbound_ints(acb);
2882 /* talk to iop 331 outstanding command aborted */
2883 rtnval = arcmsr_abort_allcmd(acb);
2884 /* clear all outbound posted Q */
2885 arcmsr_done4abort_postqueue(acb);
2886 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
2887 ccb = acb->pccb_pool[i];
2888 if (ccb->startdone == ARCMSR_CCB_START) {
2889 scsi_dma_unmap(ccb->pcmd);
2890 ccb->startdone = ARCMSR_CCB_DONE;
2892 spin_lock_irqsave(&acb->ccblist_lock, flags);
2893 list_add_tail(&ccb->list, &acb->ccb_free_list);
2894 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2897 atomic_set(&acb->ccboutstandingcount, 0);
2898 /* enable all outbound interrupt */
2899 arcmsr_enable_outbound_ints(acb, intmask_org);
2905 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
2907 struct AdapterControlBlock *acb;
2908 uint32_t intmask_org, outbound_doorbell;
2909 int retry_count = 0;
2911 acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
2912 printk(KERN_ERR "arcmsr: executing bus reset eh.....num_resets = %d, num_aborts = %d \n", acb->num_resets, acb->num_aborts);
2915 switch(acb->adapter_type){
2916 case ACB_ADAPTER_TYPE_A:{
2917 if (acb->acb_flags & ACB_F_BUS_RESET){
2919 printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
2920 timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
2925 acb->acb_flags |= ACB_F_BUS_RESET;
2926 if (!arcmsr_iop_reset(acb)) {
2927 struct MessageUnit_A __iomem *reg;
2929 arcmsr_hardware_reset(acb);
2930 acb->acb_flags &= ~ACB_F_IOP_INITED;
2932 ssleep(ARCMSR_SLEEPTIME);
2933 if ((readl(®->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
2934 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
2935 if (retry_count > ARCMSR_RETRYCOUNT) {
2936 acb->fw_flag = FW_DEADLOCK;
2937 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
2943 acb->acb_flags |= ACB_F_IOP_INITED;
2944 /* disable all outbound interrupt */
2945 intmask_org = arcmsr_disable_outbound_ints(acb);
2946 arcmsr_get_firmware_spec(acb);
2947 arcmsr_start_adapter_bgrb(acb);
2948 /* clear Qbuffer if door bell ringed */
2949 outbound_doorbell = readl(®->outbound_doorbell);
2950 writel(outbound_doorbell, ®->outbound_doorbell); /*clear interrupt */
2951 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
2952 /* enable outbound Post Queue,outbound doorbell Interrupt */
2953 arcmsr_enable_outbound_ints(acb, intmask_org);
2954 atomic_set(&acb->rq_map_token, 16);
2955 atomic_set(&acb->ante_token_value, 16);
2956 acb->fw_flag = FW_NORMAL;
2957 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2958 acb->acb_flags &= ~ACB_F_BUS_RESET;
2960 printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
2962 acb->acb_flags &= ~ACB_F_BUS_RESET;
2963 atomic_set(&acb->rq_map_token, 16);
2964 atomic_set(&acb->ante_token_value, 16);
2965 acb->fw_flag = FW_NORMAL;
2966 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
2971 case ACB_ADAPTER_TYPE_B:{
2972 acb->acb_flags |= ACB_F_BUS_RESET;
2973 if (!arcmsr_iop_reset(acb)) {
2974 acb->acb_flags &= ~ACB_F_BUS_RESET;
2977 acb->acb_flags &= ~ACB_F_BUS_RESET;
2978 atomic_set(&acb->rq_map_token, 16);
2979 atomic_set(&acb->ante_token_value, 16);
2980 acb->fw_flag = FW_NORMAL;
2981 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2986 case ACB_ADAPTER_TYPE_C:{
2987 if (acb->acb_flags & ACB_F_BUS_RESET) {
2989 printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
2990 timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
2995 acb->acb_flags |= ACB_F_BUS_RESET;
2996 if (!arcmsr_iop_reset(acb)) {
2997 struct MessageUnit_C __iomem *reg;
2999 arcmsr_hardware_reset(acb);
3000 acb->acb_flags &= ~ACB_F_IOP_INITED;
3002 ssleep(ARCMSR_SLEEPTIME);
3003 if ((readl(®->host_diagnostic) & 0x04) != 0) {
3004 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
3005 if (retry_count > ARCMSR_RETRYCOUNT) {
3006 acb->fw_flag = FW_DEADLOCK;
3007 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
3013 acb->acb_flags |= ACB_F_IOP_INITED;
3014 /* disable all outbound interrupt */
3015 intmask_org = arcmsr_disable_outbound_ints(acb);
3016 arcmsr_get_firmware_spec(acb);
3017 arcmsr_start_adapter_bgrb(acb);
3018 /* clear Qbuffer if door bell ringed */
3019 outbound_doorbell = readl(®->outbound_doorbell);
3020 writel(outbound_doorbell, ®->outbound_doorbell_clear); /*clear interrupt */
3021 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
3022 /* enable outbound Post Queue,outbound doorbell Interrupt */
3023 arcmsr_enable_outbound_ints(acb, intmask_org);
3024 atomic_set(&acb->rq_map_token, 16);
3025 atomic_set(&acb->ante_token_value, 16);
3026 acb->fw_flag = FW_NORMAL;
3027 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
3028 acb->acb_flags &= ~ACB_F_BUS_RESET;
3030 printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
3032 acb->acb_flags &= ~ACB_F_BUS_RESET;
3033 atomic_set(&acb->rq_map_token, 16);
3034 atomic_set(&acb->ante_token_value, 16);
3035 acb->fw_flag = FW_NORMAL;
3036 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
3045 static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
3046 struct CommandControlBlock *ccb)
3049 rtn = arcmsr_polling_ccbdone(acb, ccb);
3053 static int arcmsr_abort(struct scsi_cmnd *cmd)
3055 struct AdapterControlBlock *acb =
3056 (struct AdapterControlBlock *)cmd->device->host->hostdata;
3060 "arcmsr%d: abort device command of scsi id = %d lun = %d \n",
3061 acb->host->host_no, cmd->device->id, cmd->device->lun);
3062 acb->acb_flags |= ACB_F_ABORT;
3065 ************************************************
3066 ** the all interrupt service routine is locked
3067 ** we need to handle it as soon as possible and exit
3068 ************************************************
3070 if (!atomic_read(&acb->ccboutstandingcount))
3073 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
3074 struct CommandControlBlock *ccb = acb->pccb_pool[i];
3075 if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
3076 ccb->startdone = ARCMSR_CCB_ABORTED;
3077 rtn = arcmsr_abort_one_cmd(acb, ccb);
3081 acb->acb_flags &= ~ACB_F_ABORT;
3085 static const char *arcmsr_info(struct Scsi_Host *host)
3087 struct AdapterControlBlock *acb =
3088 (struct AdapterControlBlock *) host->hostdata;
3089 static char buf[256];
3092 switch (acb->pdev->device) {
3093 case PCI_DEVICE_ID_ARECA_1110:
3094 case PCI_DEVICE_ID_ARECA_1200:
3095 case PCI_DEVICE_ID_ARECA_1202:
3096 case PCI_DEVICE_ID_ARECA_1210:
3099 case PCI_DEVICE_ID_ARECA_1120:
3100 case PCI_DEVICE_ID_ARECA_1130:
3101 case PCI_DEVICE_ID_ARECA_1160:
3102 case PCI_DEVICE_ID_ARECA_1170:
3103 case PCI_DEVICE_ID_ARECA_1201:
3104 case PCI_DEVICE_ID_ARECA_1220:
3105 case PCI_DEVICE_ID_ARECA_1230:
3106 case PCI_DEVICE_ID_ARECA_1260:
3107 case PCI_DEVICE_ID_ARECA_1270:
3108 case PCI_DEVICE_ID_ARECA_1280:
3111 case PCI_DEVICE_ID_ARECA_1380:
3112 case PCI_DEVICE_ID_ARECA_1381:
3113 case PCI_DEVICE_ID_ARECA_1680:
3114 case PCI_DEVICE_ID_ARECA_1681:
3115 case PCI_DEVICE_ID_ARECA_1880:
3122 sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
3123 type, raid6 ? "( RAID6 capable)" : "",
3124 ARCMSR_DRIVER_VERSION);