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/system.h>
65 #include <asm/uaccess.h>
66 #include <scsi/scsi_host.h>
67 #include <scsi/scsi.h>
68 #include <scsi/scsi_cmnd.h>
69 #include <scsi/scsi_tcq.h>
70 #include <scsi/scsi_device.h>
71 #include <scsi/scsi_transport.h>
72 #include <scsi/scsicam.h>
74 MODULE_AUTHOR("Nick Cheng <support@areca.com.tw>");
75 MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880) SATA/SAS RAID Host Bus Adapter");
76 MODULE_LICENSE("Dual BSD/GPL");
77 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
79 #define ARCMSR_SLEEPTIME 10
80 #define ARCMSR_RETRYCOUNT 12
82 wait_queue_head_t wait_q;
83 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
84 struct scsi_cmnd *cmd);
85 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
86 static int arcmsr_abort(struct scsi_cmnd *);
87 static int arcmsr_bus_reset(struct scsi_cmnd *);
88 static int arcmsr_bios_param(struct scsi_device *sdev,
89 struct block_device *bdev, sector_t capacity, int *info);
90 static int arcmsr_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
91 static int arcmsr_probe(struct pci_dev *pdev,
92 const struct pci_device_id *id);
93 static void arcmsr_remove(struct pci_dev *pdev);
94 static void arcmsr_shutdown(struct pci_dev *pdev);
95 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
96 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
97 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
98 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
99 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
100 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
101 static void arcmsr_request_device_map(unsigned long pacb);
102 static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb);
103 static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb);
104 static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb);
105 static void arcmsr_message_isr_bh_fn(struct work_struct *work);
106 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
107 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
108 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *pACB);
109 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
110 static const char *arcmsr_info(struct Scsi_Host *);
111 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
112 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
113 int queue_depth, int reason)
115 if (reason != SCSI_QDEPTH_DEFAULT)
118 if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
119 queue_depth = ARCMSR_MAX_CMD_PERLUN;
120 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
124 static struct scsi_host_template arcmsr_scsi_host_template = {
125 .module = THIS_MODULE,
126 .name = "ARCMSR ARECA SATA/SAS RAID Controller"
127 ARCMSR_DRIVER_VERSION,
129 .queuecommand = arcmsr_queue_command,
130 .eh_abort_handler = arcmsr_abort,
131 .eh_bus_reset_handler = arcmsr_bus_reset,
132 .bios_param = arcmsr_bios_param,
133 .change_queue_depth = arcmsr_adjust_disk_queue_depth,
134 .can_queue = ARCMSR_MAX_FREECCB_NUM,
135 .this_id = ARCMSR_SCSI_INITIATOR_ID,
136 .sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
137 .max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
138 .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
139 .use_clustering = ENABLE_CLUSTERING,
140 .shost_attrs = arcmsr_host_attrs,
142 static struct pci_device_id arcmsr_device_id_table[] = {
143 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
144 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
145 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)},
146 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)},
147 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)},
148 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200)},
149 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201)},
150 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202)},
151 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)},
152 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)},
153 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)},
154 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)},
155 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)},
156 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)},
157 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)},
158 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)},
159 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)},
160 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)},
161 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880)},
162 {0, 0}, /* Terminating entry */
164 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
165 static struct pci_driver arcmsr_pci_driver = {
167 .id_table = arcmsr_device_id_table,
168 .probe = arcmsr_probe,
169 .remove = arcmsr_remove,
170 .shutdown = arcmsr_shutdown,
173 ****************************************************************************
174 ****************************************************************************
177 static void arcmsr_free_hbb_mu(struct AdapterControlBlock *acb)
179 switch (acb->adapter_type) {
180 case ACB_ADAPTER_TYPE_A:
181 case ACB_ADAPTER_TYPE_C:
183 case ACB_ADAPTER_TYPE_B:{
184 dma_free_coherent(&acb->pdev->dev,
185 sizeof(struct MessageUnit_B),
186 acb->pmuB, acb->dma_coherent_handle_hbb_mu);
191 static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
193 struct pci_dev *pdev = acb->pdev;
194 switch (acb->adapter_type){
195 case ACB_ADAPTER_TYPE_A:{
196 acb->pmuA = ioremap(pci_resource_start(pdev,0), pci_resource_len(pdev,0));
198 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
203 case ACB_ADAPTER_TYPE_B:{
204 void __iomem *mem_base0, *mem_base1;
205 mem_base0 = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
207 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
210 mem_base1 = ioremap(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
213 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
216 acb->mem_base0 = mem_base0;
217 acb->mem_base1 = mem_base1;
220 case ACB_ADAPTER_TYPE_C:{
221 acb->pmuC = ioremap_nocache(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
223 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
226 if (readl(&acb->pmuC->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
227 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &acb->pmuC->outbound_doorbell_clear);/*clear interrupt*/
236 static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
238 switch (acb->adapter_type) {
239 case ACB_ADAPTER_TYPE_A:{
243 case ACB_ADAPTER_TYPE_B:{
244 iounmap(acb->mem_base0);
245 iounmap(acb->mem_base1);
249 case ACB_ADAPTER_TYPE_C:{
255 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
257 irqreturn_t handle_state;
258 struct AdapterControlBlock *acb = dev_id;
260 handle_state = arcmsr_interrupt(acb);
264 static int arcmsr_bios_param(struct scsi_device *sdev,
265 struct block_device *bdev, sector_t capacity, int *geom)
267 int ret, heads, sectors, cylinders, total_capacity;
268 unsigned char *buffer;/* return copy of block device's partition table */
270 buffer = scsi_bios_ptable(bdev);
272 ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]);
277 total_capacity = capacity;
280 cylinders = total_capacity / (heads * sectors);
281 if (cylinders > 1024) {
284 cylinders = total_capacity / (heads * sectors);
292 static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
294 struct pci_dev *pdev = acb->pdev;
296 pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
297 acb->dev_id = dev_id;
300 acb->adapter_type = ACB_ADAPTER_TYPE_C;
304 acb->adapter_type = ACB_ADAPTER_TYPE_B;
308 default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
312 static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
314 struct MessageUnit_A __iomem *reg = acb->pmuA;
317 for (i = 0; i < 2000; i++) {
318 if (readl(®->outbound_intstatus) &
319 ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
320 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
321 ®->outbound_intstatus);
325 } /* max 20 seconds */
330 static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
332 struct MessageUnit_B *reg = acb->pmuB;
335 for (i = 0; i < 2000; i++) {
336 if (readl(reg->iop2drv_doorbell)
337 & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
338 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
339 reg->iop2drv_doorbell);
340 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
341 reg->drv2iop_doorbell);
345 } /* max 20 seconds */
350 static uint8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *pACB)
352 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
355 for (i = 0; i < 2000; i++) {
356 if (readl(&phbcmu->outbound_doorbell)
357 & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
358 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
359 &phbcmu->outbound_doorbell_clear); /*clear interrupt*/
363 } /* max 20 seconds */
368 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
370 struct MessageUnit_A __iomem *reg = acb->pmuA;
371 int retry_count = 30;
372 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
374 if (arcmsr_hba_wait_msgint_ready(acb))
378 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
379 timeout, retry count down = %d \n", acb->host->host_no, retry_count);
381 } while (retry_count != 0);
384 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
386 struct MessageUnit_B *reg = acb->pmuB;
387 int retry_count = 30;
388 writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
390 if (arcmsr_hbb_wait_msgint_ready(acb))
394 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
395 timeout,retry count down = %d \n", acb->host->host_no, retry_count);
397 } while (retry_count != 0);
400 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *pACB)
402 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
403 int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
404 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
405 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
407 if (arcmsr_hbc_wait_msgint_ready(pACB)) {
411 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
412 timeout,retry count down = %d \n", pACB->host->host_no, retry_count);
414 } while (retry_count != 0);
417 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
419 switch (acb->adapter_type) {
421 case ACB_ADAPTER_TYPE_A: {
422 arcmsr_flush_hba_cache(acb);
426 case ACB_ADAPTER_TYPE_B: {
427 arcmsr_flush_hbb_cache(acb);
430 case ACB_ADAPTER_TYPE_C: {
431 arcmsr_flush_hbc_cache(acb);
436 static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
438 struct pci_dev *pdev = acb->pdev;
440 dma_addr_t dma_coherent_handle;
441 struct CommandControlBlock *ccb_tmp;
443 dma_addr_t cdb_phyaddr;
444 unsigned long roundup_ccbsize;
445 unsigned long max_xfer_len;
446 unsigned long max_sg_entrys;
447 uint32_t firm_config_version;
449 for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
450 for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
451 acb->devstate[i][j] = ARECA_RAID_GONE;
453 max_xfer_len = ARCMSR_MAX_XFER_LEN;
454 max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
455 firm_config_version = acb->firm_cfg_version;
456 if((firm_config_version & 0xFF) >= 3){
457 max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
458 max_sg_entrys = (max_xfer_len/4096);
460 acb->host->max_sectors = max_xfer_len/512;
461 acb->host->sg_tablesize = max_sg_entrys;
462 roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
463 acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM;
464 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
466 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
469 acb->dma_coherent = dma_coherent;
470 acb->dma_coherent_handle = dma_coherent_handle;
471 memset(dma_coherent, 0, acb->uncache_size);
472 ccb_tmp = dma_coherent;
473 acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
474 for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
475 cdb_phyaddr = dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
476 ccb_tmp->cdb_phyaddr_pattern = ((acb->adapter_type == ACB_ADAPTER_TYPE_C) ? cdb_phyaddr : (cdb_phyaddr >> 5));
477 acb->pccb_pool[i] = ccb_tmp;
479 INIT_LIST_HEAD(&ccb_tmp->list);
480 list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
481 ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
482 dma_coherent_handle = dma_coherent_handle + roundup_ccbsize;
487 static void arcmsr_message_isr_bh_fn(struct work_struct *work)
489 struct AdapterControlBlock *acb = container_of(work,struct AdapterControlBlock, arcmsr_do_message_isr_bh);
490 switch (acb->adapter_type) {
491 case ACB_ADAPTER_TYPE_A: {
493 struct MessageUnit_A __iomem *reg = acb->pmuA;
494 char *acb_dev_map = (char *)acb->device_map;
495 uint32_t __iomem *signature = (uint32_t __iomem*) (®->message_rwbuffer[0]);
496 char __iomem *devicemap = (char __iomem*) (®->message_rwbuffer[21]);
498 struct scsi_device *psdev;
501 atomic_inc(&acb->rq_map_token);
502 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
503 for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
504 diff = (*acb_dev_map)^readb(devicemap);
507 *acb_dev_map = readb(devicemap);
509 for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
510 if((temp & 0x01)==1 && (diff & 0x01) == 1) {
511 scsi_add_device(acb->host, 0, target, lun);
512 }else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
513 psdev = scsi_device_lookup(acb->host, 0, target, lun);
514 if (psdev != NULL ) {
515 scsi_remove_device(psdev);
516 scsi_device_put(psdev);
530 case ACB_ADAPTER_TYPE_B: {
531 struct MessageUnit_B *reg = acb->pmuB;
532 char *acb_dev_map = (char *)acb->device_map;
533 uint32_t __iomem *signature = (uint32_t __iomem*)(®->message_rwbuffer[0]);
534 char __iomem *devicemap = (char __iomem*)(®->message_rwbuffer[21]);
536 struct scsi_device *psdev;
539 atomic_inc(&acb->rq_map_token);
540 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
541 for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
542 diff = (*acb_dev_map)^readb(devicemap);
545 *acb_dev_map = readb(devicemap);
547 for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
548 if((temp & 0x01)==1 && (diff & 0x01) == 1) {
549 scsi_add_device(acb->host, 0, target, lun);
550 }else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
551 psdev = scsi_device_lookup(acb->host, 0, target, lun);
552 if (psdev != NULL ) {
553 scsi_remove_device(psdev);
554 scsi_device_put(psdev);
567 case ACB_ADAPTER_TYPE_C: {
568 struct MessageUnit_C *reg = acb->pmuC;
569 char *acb_dev_map = (char *)acb->device_map;
570 uint32_t __iomem *signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
571 char __iomem *devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
573 struct scsi_device *psdev;
576 atomic_inc(&acb->rq_map_token);
577 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
578 for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) {
579 diff = (*acb_dev_map)^readb(devicemap);
582 *acb_dev_map = readb(devicemap);
584 for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
585 if ((temp & 0x01) == 1 && (diff & 0x01) == 1) {
586 scsi_add_device(acb->host, 0, target, lun);
587 } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) {
588 psdev = scsi_device_lookup(acb->host, 0, target, lun);
590 scsi_remove_device(psdev);
591 scsi_device_put(psdev);
606 static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
608 struct Scsi_Host *host;
609 struct AdapterControlBlock *acb;
612 error = pci_enable_device(pdev);
616 host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct AdapterControlBlock));
618 goto pci_disable_dev;
620 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
622 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
625 "scsi%d: No suitable DMA mask available\n",
627 goto scsi_host_release;
630 init_waitqueue_head(&wait_q);
631 bus = pdev->bus->number;
632 dev_fun = pdev->devfn;
633 acb = (struct AdapterControlBlock *) host->hostdata;
634 memset(acb,0,sizeof(struct AdapterControlBlock));
637 host->max_lun = ARCMSR_MAX_TARGETLUN;
638 host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
639 host->max_cmd_len = 16; /*this is issue of 64bit LBA ,over 2T byte*/
640 host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */
641 host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
642 host->this_id = ARCMSR_SCSI_INITIATOR_ID;
643 host->unique_id = (bus << 8) | dev_fun;
644 pci_set_drvdata(pdev, host);
645 pci_set_master(pdev);
646 error = pci_request_regions(pdev, "arcmsr");
648 goto scsi_host_release;
650 spin_lock_init(&acb->eh_lock);
651 spin_lock_init(&acb->ccblist_lock);
652 acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
653 ACB_F_MESSAGE_RQBUFFER_CLEARED |
654 ACB_F_MESSAGE_WQBUFFER_READED);
655 acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
656 INIT_LIST_HEAD(&acb->ccb_free_list);
657 arcmsr_define_adapter_type(acb);
658 error = arcmsr_remap_pciregion(acb);
660 goto pci_release_regs;
662 error = arcmsr_get_firmware_spec(acb);
664 goto unmap_pci_region;
666 error = arcmsr_alloc_ccb_pool(acb);
670 arcmsr_iop_init(acb);
671 error = scsi_add_host(host, &pdev->dev);
673 goto RAID_controller_stop;
675 error = request_irq(pdev->irq, arcmsr_do_interrupt, IRQF_SHARED, "arcmsr", acb);
677 goto scsi_host_remove;
679 host->irq = pdev->irq;
680 scsi_scan_host(host);
681 INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
682 atomic_set(&acb->rq_map_token, 16);
683 atomic_set(&acb->ante_token_value, 16);
684 acb->fw_flag = FW_NORMAL;
685 init_timer(&acb->eternal_timer);
686 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
687 acb->eternal_timer.data = (unsigned long) acb;
688 acb->eternal_timer.function = &arcmsr_request_device_map;
689 add_timer(&acb->eternal_timer);
690 if(arcmsr_alloc_sysfs_attr(acb))
695 scsi_remove_host(host);
696 RAID_controller_stop:
697 arcmsr_stop_adapter_bgrb(acb);
698 arcmsr_flush_adapter_cache(acb);
699 arcmsr_free_ccb_pool(acb);
701 arcmsr_free_hbb_mu(acb);
703 arcmsr_unmap_pciregion(acb);
705 pci_release_regions(pdev);
709 pci_disable_device(pdev);
713 static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
715 struct MessageUnit_A __iomem *reg = acb->pmuA;
716 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
717 if (!arcmsr_hba_wait_msgint_ready(acb)) {
719 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
720 , acb->host->host_no);
726 static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
728 struct MessageUnit_B *reg = acb->pmuB;
730 writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
731 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
733 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
734 , acb->host->host_no);
739 static uint8_t arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *pACB)
741 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
742 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
743 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
744 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
746 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
747 , pACB->host->host_no);
752 static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
755 switch (acb->adapter_type) {
756 case ACB_ADAPTER_TYPE_A: {
757 rtnval = arcmsr_abort_hba_allcmd(acb);
761 case ACB_ADAPTER_TYPE_B: {
762 rtnval = arcmsr_abort_hbb_allcmd(acb);
766 case ACB_ADAPTER_TYPE_C: {
767 rtnval = arcmsr_abort_hbc_allcmd(acb);
773 static bool arcmsr_hbb_enable_driver_mode(struct AdapterControlBlock *pacb)
775 struct MessageUnit_B *reg = pacb->pmuB;
776 writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
777 if (!arcmsr_hbb_wait_msgint_ready(pacb)) {
778 printk(KERN_ERR "arcmsr%d: can't set driver mode. \n", pacb->host->host_no);
784 static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
786 struct scsi_cmnd *pcmd = ccb->pcmd;
788 scsi_dma_unmap(pcmd);
791 static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
793 struct AdapterControlBlock *acb = ccb->acb;
794 struct scsi_cmnd *pcmd = ccb->pcmd;
796 atomic_dec(&acb->ccboutstandingcount);
797 arcmsr_pci_unmap_dma(ccb);
798 ccb->startdone = ARCMSR_CCB_DONE;
799 spin_lock_irqsave(&acb->ccblist_lock, flags);
800 list_add_tail(&ccb->list, &acb->ccb_free_list);
801 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
802 pcmd->scsi_done(pcmd);
805 static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
808 struct scsi_cmnd *pcmd = ccb->pcmd;
809 struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
810 pcmd->result = DID_OK << 16;
812 int sense_data_length =
813 sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
814 ? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
815 memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
816 memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
817 sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
818 sensebuffer->Valid = 1;
822 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
825 switch (acb->adapter_type) {
826 case ACB_ADAPTER_TYPE_A : {
827 struct MessageUnit_A __iomem *reg = acb->pmuA;
828 orig_mask = readl(®->outbound_intmask);
829 writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
830 ®->outbound_intmask);
833 case ACB_ADAPTER_TYPE_B : {
834 struct MessageUnit_B *reg = acb->pmuB;
835 orig_mask = readl(reg->iop2drv_doorbell_mask);
836 writel(0, reg->iop2drv_doorbell_mask);
839 case ACB_ADAPTER_TYPE_C:{
840 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
841 /* disable all outbound interrupt */
842 orig_mask = readl(®->host_int_mask); /* disable outbound message0 int */
843 writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
850 static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
851 struct CommandControlBlock *ccb, bool error)
854 id = ccb->pcmd->device->id;
855 lun = ccb->pcmd->device->lun;
857 if (acb->devstate[id][lun] == ARECA_RAID_GONE)
858 acb->devstate[id][lun] = ARECA_RAID_GOOD;
859 ccb->pcmd->result = DID_OK << 16;
860 arcmsr_ccb_complete(ccb);
862 switch (ccb->arcmsr_cdb.DeviceStatus) {
863 case ARCMSR_DEV_SELECT_TIMEOUT: {
864 acb->devstate[id][lun] = ARECA_RAID_GONE;
865 ccb->pcmd->result = DID_NO_CONNECT << 16;
866 arcmsr_ccb_complete(ccb);
870 case ARCMSR_DEV_ABORTED:
872 case ARCMSR_DEV_INIT_FAIL: {
873 acb->devstate[id][lun] = ARECA_RAID_GONE;
874 ccb->pcmd->result = DID_BAD_TARGET << 16;
875 arcmsr_ccb_complete(ccb);
879 case ARCMSR_DEV_CHECK_CONDITION: {
880 acb->devstate[id][lun] = ARECA_RAID_GOOD;
881 arcmsr_report_sense_info(ccb);
882 arcmsr_ccb_complete(ccb);
888 "arcmsr%d: scsi id = %d lun = %d isr get command error done, \
889 but got unknown DeviceStatus = 0x%x \n"
893 , ccb->arcmsr_cdb.DeviceStatus);
894 acb->devstate[id][lun] = ARECA_RAID_GONE;
895 ccb->pcmd->result = DID_NO_CONNECT << 16;
896 arcmsr_ccb_complete(ccb);
902 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
905 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
906 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
907 struct scsi_cmnd *abortcmd = pCCB->pcmd;
909 id = abortcmd->device->id;
910 lun = abortcmd->device->lun;
911 abortcmd->result |= DID_ABORT << 16;
912 arcmsr_ccb_complete(pCCB);
913 printk(KERN_NOTICE "arcmsr%d: pCCB ='0x%p' isr got aborted command \n",
914 acb->host->host_no, pCCB);
918 printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \
920 "ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x"
921 " ccboutstandingcount = %d \n"
927 , atomic_read(&acb->ccboutstandingcount));
930 arcmsr_report_ccb_state(acb, pCCB, error);
933 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
937 struct ARCMSR_CDB *pARCMSR_CDB;
939 struct CommandControlBlock *pCCB;
940 switch (acb->adapter_type) {
942 case ACB_ADAPTER_TYPE_A: {
943 struct MessageUnit_A __iomem *reg = acb->pmuA;
944 uint32_t outbound_intstatus;
945 outbound_intstatus = readl(®->outbound_intstatus) &
946 acb->outbound_int_enable;
947 /*clear and abort all outbound posted Q*/
948 writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
949 while(((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF)
950 && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
951 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
952 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
953 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
954 arcmsr_drain_donequeue(acb, pCCB, error);
959 case ACB_ADAPTER_TYPE_B: {
960 struct MessageUnit_B *reg = acb->pmuB;
961 /*clear all outbound posted Q*/
962 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
963 for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
964 if ((flag_ccb = readl(®->done_qbuffer[i])) != 0) {
965 writel(0, ®->done_qbuffer[i]);
966 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
967 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
968 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
969 arcmsr_drain_donequeue(acb, pCCB, error);
971 reg->post_qbuffer[i] = 0;
973 reg->doneq_index = 0;
974 reg->postq_index = 0;
977 case ACB_ADAPTER_TYPE_C: {
978 struct MessageUnit_C *reg = acb->pmuC;
979 struct ARCMSR_CDB *pARCMSR_CDB;
980 uint32_t flag_ccb, ccb_cdb_phy;
982 struct CommandControlBlock *pCCB;
983 while ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
985 flag_ccb = readl(®->outbound_queueport_low);
986 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
987 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+ccb_cdb_phy);/*frame must be 32 bytes aligned*/
988 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
989 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
990 arcmsr_drain_donequeue(acb, pCCB, error);
995 static void arcmsr_remove(struct pci_dev *pdev)
997 struct Scsi_Host *host = pci_get_drvdata(pdev);
998 struct AdapterControlBlock *acb =
999 (struct AdapterControlBlock *) host->hostdata;
1001 arcmsr_free_sysfs_attr(acb);
1002 scsi_remove_host(host);
1003 flush_work_sync(&acb->arcmsr_do_message_isr_bh);
1004 del_timer_sync(&acb->eternal_timer);
1005 arcmsr_disable_outbound_ints(acb);
1006 arcmsr_stop_adapter_bgrb(acb);
1007 arcmsr_flush_adapter_cache(acb);
1008 acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
1009 acb->acb_flags &= ~ACB_F_IOP_INITED;
1011 for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD; poll_count++){
1012 if (!atomic_read(&acb->ccboutstandingcount))
1014 arcmsr_interrupt(acb);/* FIXME: need spinlock */
1018 if (atomic_read(&acb->ccboutstandingcount)) {
1021 arcmsr_abort_allcmd(acb);
1022 arcmsr_done4abort_postqueue(acb);
1023 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
1024 struct CommandControlBlock *ccb = acb->pccb_pool[i];
1025 if (ccb->startdone == ARCMSR_CCB_START) {
1026 ccb->startdone = ARCMSR_CCB_ABORTED;
1027 ccb->pcmd->result = DID_ABORT << 16;
1028 arcmsr_ccb_complete(ccb);
1032 free_irq(pdev->irq, acb);
1033 arcmsr_free_ccb_pool(acb);
1034 arcmsr_free_hbb_mu(acb);
1035 arcmsr_unmap_pciregion(acb);
1036 pci_release_regions(pdev);
1037 scsi_host_put(host);
1038 pci_disable_device(pdev);
1039 pci_set_drvdata(pdev, NULL);
1042 static void arcmsr_shutdown(struct pci_dev *pdev)
1044 struct Scsi_Host *host = pci_get_drvdata(pdev);
1045 struct AdapterControlBlock *acb =
1046 (struct AdapterControlBlock *)host->hostdata;
1047 del_timer_sync(&acb->eternal_timer);
1048 arcmsr_disable_outbound_ints(acb);
1049 flush_work_sync(&acb->arcmsr_do_message_isr_bh);
1050 arcmsr_stop_adapter_bgrb(acb);
1051 arcmsr_flush_adapter_cache(acb);
1054 static int arcmsr_module_init(void)
1057 error = pci_register_driver(&arcmsr_pci_driver);
1061 static void arcmsr_module_exit(void)
1063 pci_unregister_driver(&arcmsr_pci_driver);
1065 module_init(arcmsr_module_init);
1066 module_exit(arcmsr_module_exit);
1068 static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
1072 switch (acb->adapter_type) {
1074 case ACB_ADAPTER_TYPE_A: {
1075 struct MessageUnit_A __iomem *reg = acb->pmuA;
1076 mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
1077 ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
1078 ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
1079 writel(mask, ®->outbound_intmask);
1080 acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
1084 case ACB_ADAPTER_TYPE_B: {
1085 struct MessageUnit_B *reg = acb->pmuB;
1086 mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
1087 ARCMSR_IOP2DRV_DATA_READ_OK |
1088 ARCMSR_IOP2DRV_CDB_DONE |
1089 ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
1090 writel(mask, reg->iop2drv_doorbell_mask);
1091 acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
1094 case ACB_ADAPTER_TYPE_C: {
1095 struct MessageUnit_C *reg = acb->pmuC;
1096 mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
1097 writel(intmask_org & mask, ®->host_int_mask);
1098 acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
1103 static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
1104 struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
1106 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1107 int8_t *psge = (int8_t *)&arcmsr_cdb->u;
1108 __le32 address_lo, address_hi;
1109 int arccdbsize = 0x30;
1112 struct scatterlist *sg;
1115 memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
1116 arcmsr_cdb->TargetID = pcmd->device->id;
1117 arcmsr_cdb->LUN = pcmd->device->lun;
1118 arcmsr_cdb->Function = 1;
1119 arcmsr_cdb->Context = 0;
1120 memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
1122 nseg = scsi_dma_map(pcmd);
1123 if (unlikely(nseg > acb->host->sg_tablesize || nseg < 0))
1125 scsi_for_each_sg(pcmd, sg, nseg, i) {
1126 /* Get the physical address of the current data pointer */
1127 length = cpu_to_le32(sg_dma_len(sg));
1128 address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
1129 address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
1130 if (address_hi == 0) {
1131 struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1133 pdma_sg->address = address_lo;
1134 pdma_sg->length = length;
1135 psge += sizeof (struct SG32ENTRY);
1136 arccdbsize += sizeof (struct SG32ENTRY);
1138 struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1140 pdma_sg->addresshigh = address_hi;
1141 pdma_sg->address = address_lo;
1142 pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
1143 psge += sizeof (struct SG64ENTRY);
1144 arccdbsize += sizeof (struct SG64ENTRY);
1147 arcmsr_cdb->sgcount = (uint8_t)nseg;
1148 arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
1149 arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
1150 if ( arccdbsize > 256)
1151 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1152 if (pcmd->sc_data_direction == DMA_TO_DEVICE)
1153 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1154 ccb->arc_cdb_size = arccdbsize;
1158 static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
1160 uint32_t cdb_phyaddr_pattern = ccb->cdb_phyaddr_pattern;
1161 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1162 atomic_inc(&acb->ccboutstandingcount);
1163 ccb->startdone = ARCMSR_CCB_START;
1164 switch (acb->adapter_type) {
1165 case ACB_ADAPTER_TYPE_A: {
1166 struct MessageUnit_A __iomem *reg = acb->pmuA;
1168 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
1169 writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
1170 ®->inbound_queueport);
1172 writel(cdb_phyaddr_pattern, ®->inbound_queueport);
1177 case ACB_ADAPTER_TYPE_B: {
1178 struct MessageUnit_B *reg = acb->pmuB;
1179 uint32_t ending_index, index = reg->postq_index;
1181 ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
1182 writel(0, ®->post_qbuffer[ending_index]);
1183 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1184 writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\
1185 ®->post_qbuffer[index]);
1187 writel(cdb_phyaddr_pattern, ®->post_qbuffer[index]);
1190 index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
1191 reg->postq_index = index;
1192 writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
1195 case ACB_ADAPTER_TYPE_C: {
1196 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
1197 uint32_t ccb_post_stamp, arc_cdb_size;
1199 arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
1200 ccb_post_stamp = (cdb_phyaddr_pattern | ((arc_cdb_size - 1) >> 6) | 1);
1201 if (acb->cdb_phyaddr_hi32) {
1202 writel(acb->cdb_phyaddr_hi32, &phbcmu->inbound_queueport_high);
1203 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1205 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1211 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1213 struct MessageUnit_A __iomem *reg = acb->pmuA;
1214 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1215 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
1216 if (!arcmsr_hba_wait_msgint_ready(acb)) {
1218 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1219 , acb->host->host_no);
1223 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1225 struct MessageUnit_B *reg = acb->pmuB;
1226 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1227 writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);
1229 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
1231 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1232 , acb->host->host_no);
1236 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *pACB)
1238 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
1239 pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
1240 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
1241 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
1242 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
1244 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1245 , pACB->host->host_no);
1249 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1251 switch (acb->adapter_type) {
1252 case ACB_ADAPTER_TYPE_A: {
1253 arcmsr_stop_hba_bgrb(acb);
1257 case ACB_ADAPTER_TYPE_B: {
1258 arcmsr_stop_hbb_bgrb(acb);
1261 case ACB_ADAPTER_TYPE_C: {
1262 arcmsr_stop_hbc_bgrb(acb);
1267 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
1269 dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
1272 void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1274 switch (acb->adapter_type) {
1275 case ACB_ADAPTER_TYPE_A: {
1276 struct MessageUnit_A __iomem *reg = acb->pmuA;
1277 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
1281 case ACB_ADAPTER_TYPE_B: {
1282 struct MessageUnit_B *reg = acb->pmuB;
1283 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
1286 case ACB_ADAPTER_TYPE_C: {
1287 struct MessageUnit_C __iomem *reg = acb->pmuC;
1288 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
1293 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1295 switch (acb->adapter_type) {
1296 case ACB_ADAPTER_TYPE_A: {
1297 struct MessageUnit_A __iomem *reg = acb->pmuA;
1299 ** push inbound doorbell tell iop, driver data write ok
1300 ** and wait reply on next hwinterrupt for next Qbuffer post
1302 writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, ®->inbound_doorbell);
1306 case ACB_ADAPTER_TYPE_B: {
1307 struct MessageUnit_B *reg = acb->pmuB;
1309 ** push inbound doorbell tell iop, driver data write ok
1310 ** and wait reply on next hwinterrupt for next Qbuffer post
1312 writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
1315 case ACB_ADAPTER_TYPE_C: {
1316 struct MessageUnit_C __iomem *reg = acb->pmuC;
1318 ** push inbound doorbell tell iop, driver data write ok
1319 ** and wait reply on next hwinterrupt for next Qbuffer post
1321 writel(ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK, ®->inbound_doorbell);
1327 struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
1329 struct QBUFFER __iomem *qbuffer = NULL;
1330 switch (acb->adapter_type) {
1332 case ACB_ADAPTER_TYPE_A: {
1333 struct MessageUnit_A __iomem *reg = acb->pmuA;
1334 qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer;
1338 case ACB_ADAPTER_TYPE_B: {
1339 struct MessageUnit_B *reg = acb->pmuB;
1340 qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
1343 case ACB_ADAPTER_TYPE_C: {
1344 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
1345 qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
1351 static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb)
1353 struct QBUFFER __iomem *pqbuffer = NULL;
1354 switch (acb->adapter_type) {
1356 case ACB_ADAPTER_TYPE_A: {
1357 struct MessageUnit_A __iomem *reg = acb->pmuA;
1358 pqbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer;
1362 case ACB_ADAPTER_TYPE_B: {
1363 struct MessageUnit_B *reg = acb->pmuB;
1364 pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
1367 case ACB_ADAPTER_TYPE_C: {
1368 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
1369 pqbuffer = (struct QBUFFER __iomem *)®->message_wbuffer;
1376 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1378 struct QBUFFER __iomem *prbuffer;
1379 struct QBUFFER *pQbuffer;
1380 uint8_t __iomem *iop_data;
1381 int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
1382 rqbuf_lastindex = acb->rqbuf_lastindex;
1383 rqbuf_firstindex = acb->rqbuf_firstindex;
1384 prbuffer = arcmsr_get_iop_rqbuffer(acb);
1385 iop_data = (uint8_t __iomem *)prbuffer->data;
1386 iop_len = prbuffer->data_len;
1387 my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1) & (ARCMSR_MAX_QBUFFER - 1);
1389 if (my_empty_len >= iop_len)
1391 while (iop_len > 0) {
1392 pQbuffer = (struct QBUFFER *)&acb->rqbuffer[rqbuf_lastindex];
1393 memcpy(pQbuffer, iop_data, 1);
1395 rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1399 acb->rqbuf_lastindex = rqbuf_lastindex;
1400 arcmsr_iop_message_read(acb);
1404 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1408 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1410 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
1411 if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1413 struct QBUFFER __iomem *pwbuffer;
1414 uint8_t __iomem *iop_data;
1415 int32_t allxfer_len = 0;
1417 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
1418 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1419 iop_data = (uint8_t __iomem *)pwbuffer->data;
1421 while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) && \
1422 (allxfer_len < 124)) {
1423 pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1424 memcpy(iop_data, pQbuffer, 1);
1425 acb->wqbuf_firstindex++;
1426 acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1430 pwbuffer->data_len = allxfer_len;
1432 arcmsr_iop_message_wrote(acb);
1435 if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1436 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1440 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1442 uint32_t outbound_doorbell;
1443 struct MessageUnit_A __iomem *reg = acb->pmuA;
1444 outbound_doorbell = readl(®->outbound_doorbell);
1445 writel(outbound_doorbell, ®->outbound_doorbell);
1446 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1447 arcmsr_iop2drv_data_wrote_handle(acb);
1450 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1451 arcmsr_iop2drv_data_read_handle(acb);
1454 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *pACB)
1456 uint32_t outbound_doorbell;
1457 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
1459 *******************************************************************
1460 ** Maybe here we need to check wrqbuffer_lock is lock or not
1461 ** DOORBELL: din! don!
1462 ** check if there are any mail need to pack from firmware
1463 *******************************************************************
1465 outbound_doorbell = readl(®->outbound_doorbell);
1466 writel(outbound_doorbell, ®->outbound_doorbell_clear);/*clear interrupt*/
1467 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1468 arcmsr_iop2drv_data_wrote_handle(pACB);
1470 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1471 arcmsr_iop2drv_data_read_handle(pACB);
1473 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1474 arcmsr_hbc_message_isr(pACB); /* messenger of "driver to iop commands" */
1478 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
1481 struct MessageUnit_A __iomem *reg = acb->pmuA;
1482 struct ARCMSR_CDB *pARCMSR_CDB;
1483 struct CommandControlBlock *pCCB;
1485 while ((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) {
1486 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
1487 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1488 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1489 arcmsr_drain_donequeue(acb, pCCB, error);
1492 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
1496 struct MessageUnit_B *reg = acb->pmuB;
1497 struct ARCMSR_CDB *pARCMSR_CDB;
1498 struct CommandControlBlock *pCCB;
1500 index = reg->doneq_index;
1501 while ((flag_ccb = readl(®->done_qbuffer[index])) != 0) {
1502 writel(0, ®->done_qbuffer[index]);
1503 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
1504 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1505 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1506 arcmsr_drain_donequeue(acb, pCCB, error);
1508 index %= ARCMSR_MAX_HBB_POSTQUEUE;
1509 reg->doneq_index = index;
1513 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
1515 struct MessageUnit_C *phbcmu;
1516 struct ARCMSR_CDB *arcmsr_cdb;
1517 struct CommandControlBlock *ccb;
1518 uint32_t flag_ccb, ccb_cdb_phy, throttling = 0;
1521 phbcmu = (struct MessageUnit_C *)acb->pmuC;
1522 /* areca cdb command done */
1523 /* Use correct offset and size for syncing */
1525 while (readl(&phbcmu->host_int_status) &
1526 ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR){
1527 /* check if command done with no error*/
1528 flag_ccb = readl(&phbcmu->outbound_queueport_low);
1529 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);/*frame must be 32 bytes aligned*/
1530 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
1531 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
1532 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
1533 /* check if command done with no error */
1534 arcmsr_drain_donequeue(acb, ccb, error);
1535 if (throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
1536 writel(ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING, &phbcmu->inbound_doorbell);
1543 **********************************************************************************
1544 ** Handle a message interrupt
1546 ** The only message interrupt we expect is in response to a query for the current adapter config.
1547 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
1548 **********************************************************************************
1550 static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb)
1552 struct MessageUnit_A *reg = acb->pmuA;
1553 /*clear interrupt and message state*/
1554 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus);
1555 schedule_work(&acb->arcmsr_do_message_isr_bh);
1557 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb)
1559 struct MessageUnit_B *reg = acb->pmuB;
1561 /*clear interrupt and message state*/
1562 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
1563 schedule_work(&acb->arcmsr_do_message_isr_bh);
1566 **********************************************************************************
1567 ** Handle a message interrupt
1569 ** The only message interrupt we expect is in response to a query for the
1570 ** current adapter config.
1571 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
1572 **********************************************************************************
1574 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb)
1576 struct MessageUnit_C *reg = acb->pmuC;
1577 /*clear interrupt and message state*/
1578 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);
1579 schedule_work(&acb->arcmsr_do_message_isr_bh);
1582 static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
1584 uint32_t outbound_intstatus;
1585 struct MessageUnit_A __iomem *reg = acb->pmuA;
1586 outbound_intstatus = readl(®->outbound_intstatus) &
1587 acb->outbound_int_enable;
1588 if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) {
1591 writel(outbound_intstatus, ®->outbound_intstatus);
1592 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
1593 arcmsr_hba_doorbell_isr(acb);
1595 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
1596 arcmsr_hba_postqueue_isr(acb);
1598 if(outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
1599 /* messenger of "driver to iop commands" */
1600 arcmsr_hba_message_isr(acb);
1605 static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb)
1607 uint32_t outbound_doorbell;
1608 struct MessageUnit_B *reg = acb->pmuB;
1609 outbound_doorbell = readl(reg->iop2drv_doorbell) &
1610 acb->outbound_int_enable;
1611 if (!outbound_doorbell)
1614 writel(~outbound_doorbell, reg->iop2drv_doorbell);
1615 /*in case the last action of doorbell interrupt clearance is cached,
1616 this action can push HW to write down the clear bit*/
1617 readl(reg->iop2drv_doorbell);
1618 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
1619 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
1620 arcmsr_iop2drv_data_wrote_handle(acb);
1622 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
1623 arcmsr_iop2drv_data_read_handle(acb);
1625 if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
1626 arcmsr_hbb_postqueue_isr(acb);
1628 if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
1629 /* messenger of "driver to iop commands" */
1630 arcmsr_hbb_message_isr(acb);
1635 static int arcmsr_handle_hbc_isr(struct AdapterControlBlock *pACB)
1637 uint32_t host_interrupt_status;
1638 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
1640 *********************************************
1641 ** check outbound intstatus
1642 *********************************************
1644 host_interrupt_status = readl(&phbcmu->host_int_status);
1645 if (!host_interrupt_status) {
1646 /*it must be share irq*/
1649 /* MU ioctl transfer doorbell interrupts*/
1650 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
1651 arcmsr_hbc_doorbell_isr(pACB); /* messenger of "ioctl message read write" */
1653 /* MU post queue interrupts*/
1654 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
1655 arcmsr_hbc_postqueue_isr(pACB); /* messenger of "scsi commands" */
1659 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
1661 switch (acb->adapter_type) {
1662 case ACB_ADAPTER_TYPE_A: {
1663 if (arcmsr_handle_hba_isr(acb)) {
1669 case ACB_ADAPTER_TYPE_B: {
1670 if (arcmsr_handle_hbb_isr(acb)) {
1675 case ACB_ADAPTER_TYPE_C: {
1676 if (arcmsr_handle_hbc_isr(acb)) {
1684 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
1687 /* stop adapter background rebuild */
1688 if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
1689 uint32_t intmask_org;
1690 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1691 intmask_org = arcmsr_disable_outbound_ints(acb);
1692 arcmsr_stop_adapter_bgrb(acb);
1693 arcmsr_flush_adapter_cache(acb);
1694 arcmsr_enable_outbound_ints(acb, intmask_org);
1699 void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb)
1701 int32_t wqbuf_firstindex, wqbuf_lastindex;
1703 struct QBUFFER __iomem *pwbuffer;
1704 uint8_t __iomem *iop_data;
1705 int32_t allxfer_len = 0;
1706 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1707 iop_data = (uint8_t __iomem *)pwbuffer->data;
1708 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
1709 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
1710 wqbuf_firstindex = acb->wqbuf_firstindex;
1711 wqbuf_lastindex = acb->wqbuf_lastindex;
1712 while ((wqbuf_firstindex != wqbuf_lastindex) && (allxfer_len < 124)) {
1713 pQbuffer = &acb->wqbuffer[wqbuf_firstindex];
1714 memcpy(iop_data, pQbuffer, 1);
1716 wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1720 acb->wqbuf_firstindex = wqbuf_firstindex;
1721 pwbuffer->data_len = allxfer_len;
1722 arcmsr_iop_message_wrote(acb);
1726 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
1727 struct scsi_cmnd *cmd)
1729 struct CMD_MESSAGE_FIELD *pcmdmessagefld;
1730 int retvalue = 0, transfer_len = 0;
1732 struct scatterlist *sg;
1733 uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 |
1734 (uint32_t ) cmd->cmnd[6] << 16 |
1735 (uint32_t ) cmd->cmnd[7] << 8 |
1736 (uint32_t ) cmd->cmnd[8];
1737 /* 4 bytes: Areca io control code */
1738 sg = scsi_sglist(cmd);
1739 buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
1740 if (scsi_sg_count(cmd) > 1) {
1741 retvalue = ARCMSR_MESSAGE_FAIL;
1744 transfer_len += sg->length;
1746 if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
1747 retvalue = ARCMSR_MESSAGE_FAIL;
1750 pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
1751 switch(controlcode) {
1753 case ARCMSR_MESSAGE_READ_RQBUFFER: {
1754 unsigned char *ver_addr;
1755 uint8_t *pQbuffer, *ptmpQbuffer;
1756 int32_t allxfer_len = 0;
1758 ver_addr = kmalloc(1032, GFP_ATOMIC);
1760 retvalue = ARCMSR_MESSAGE_FAIL;
1764 ptmpQbuffer = ver_addr;
1765 while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
1766 && (allxfer_len < 1031)) {
1767 pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
1768 memcpy(ptmpQbuffer, pQbuffer, 1);
1769 acb->rqbuf_firstindex++;
1770 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1774 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1776 struct QBUFFER __iomem *prbuffer;
1777 uint8_t __iomem *iop_data;
1780 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1781 prbuffer = arcmsr_get_iop_rqbuffer(acb);
1782 iop_data = prbuffer->data;
1783 iop_len = readl(&prbuffer->data_len);
1784 while (iop_len > 0) {
1785 acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
1786 acb->rqbuf_lastindex++;
1787 acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1791 arcmsr_iop_message_read(acb);
1793 memcpy(pcmdmessagefld->messagedatabuffer, ver_addr, allxfer_len);
1794 pcmdmessagefld->cmdmessage.Length = allxfer_len;
1795 if(acb->fw_flag == FW_DEADLOCK) {
1796 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1798 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1804 case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
1805 unsigned char *ver_addr;
1807 int32_t my_empty_len, wqbuf_firstindex, wqbuf_lastindex;
1808 uint8_t *pQbuffer, *ptmpuserbuffer;
1810 ver_addr = kmalloc(1032, GFP_ATOMIC);
1812 retvalue = ARCMSR_MESSAGE_FAIL;
1815 if(acb->fw_flag == FW_DEADLOCK) {
1816 pcmdmessagefld->cmdmessage.ReturnCode =
1817 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1819 pcmdmessagefld->cmdmessage.ReturnCode =
1820 ARCMSR_MESSAGE_RETURNCODE_OK;
1822 ptmpuserbuffer = ver_addr;
1823 user_len = pcmdmessagefld->cmdmessage.Length;
1824 if (user_len > 1032) {
1825 retvalue = ARCMSR_MESSAGE_FAIL;
1829 memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len);
1830 wqbuf_lastindex = acb->wqbuf_lastindex;
1831 wqbuf_firstindex = acb->wqbuf_firstindex;
1832 if (wqbuf_lastindex != wqbuf_firstindex) {
1833 struct SENSE_DATA *sensebuffer =
1834 (struct SENSE_DATA *)cmd->sense_buffer;
1835 arcmsr_post_ioctldata2iop(acb);
1836 /* has error report sensedata */
1837 sensebuffer->ErrorCode = 0x70;
1838 sensebuffer->SenseKey = ILLEGAL_REQUEST;
1839 sensebuffer->AdditionalSenseLength = 0x0A;
1840 sensebuffer->AdditionalSenseCode = 0x20;
1841 sensebuffer->Valid = 1;
1842 retvalue = ARCMSR_MESSAGE_FAIL;
1844 my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
1845 &(ARCMSR_MAX_QBUFFER - 1);
1846 if (my_empty_len >= user_len) {
1847 while (user_len > 0) {
1849 &acb->wqbuffer[acb->wqbuf_lastindex];
1850 memcpy(pQbuffer, ptmpuserbuffer, 1);
1851 acb->wqbuf_lastindex++;
1852 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1856 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
1858 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
1859 arcmsr_post_ioctldata2iop(acb);
1862 /* has error report sensedata */
1863 struct SENSE_DATA *sensebuffer =
1864 (struct SENSE_DATA *)cmd->sense_buffer;
1865 sensebuffer->ErrorCode = 0x70;
1866 sensebuffer->SenseKey = ILLEGAL_REQUEST;
1867 sensebuffer->AdditionalSenseLength = 0x0A;
1868 sensebuffer->AdditionalSenseCode = 0x20;
1869 sensebuffer->Valid = 1;
1870 retvalue = ARCMSR_MESSAGE_FAIL;
1877 case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
1878 uint8_t *pQbuffer = acb->rqbuffer;
1879 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1880 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1881 arcmsr_iop_message_read(acb);
1883 acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
1884 acb->rqbuf_firstindex = 0;
1885 acb->rqbuf_lastindex = 0;
1886 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1887 if(acb->fw_flag == FW_DEADLOCK) {
1888 pcmdmessagefld->cmdmessage.ReturnCode =
1889 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1891 pcmdmessagefld->cmdmessage.ReturnCode =
1892 ARCMSR_MESSAGE_RETURNCODE_OK;
1897 case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
1898 uint8_t *pQbuffer = acb->wqbuffer;
1899 if(acb->fw_flag == FW_DEADLOCK) {
1900 pcmdmessagefld->cmdmessage.ReturnCode =
1901 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1903 pcmdmessagefld->cmdmessage.ReturnCode =
1904 ARCMSR_MESSAGE_RETURNCODE_OK;
1907 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1908 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1909 arcmsr_iop_message_read(acb);
1912 (ACB_F_MESSAGE_WQBUFFER_CLEARED |
1913 ACB_F_MESSAGE_WQBUFFER_READED);
1914 acb->wqbuf_firstindex = 0;
1915 acb->wqbuf_lastindex = 0;
1916 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1920 case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
1923 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1924 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1925 arcmsr_iop_message_read(acb);
1928 (ACB_F_MESSAGE_WQBUFFER_CLEARED
1929 | ACB_F_MESSAGE_RQBUFFER_CLEARED
1930 | ACB_F_MESSAGE_WQBUFFER_READED);
1931 acb->rqbuf_firstindex = 0;
1932 acb->rqbuf_lastindex = 0;
1933 acb->wqbuf_firstindex = 0;
1934 acb->wqbuf_lastindex = 0;
1935 pQbuffer = acb->rqbuffer;
1936 memset(pQbuffer, 0, sizeof(struct QBUFFER));
1937 pQbuffer = acb->wqbuffer;
1938 memset(pQbuffer, 0, sizeof(struct QBUFFER));
1939 if(acb->fw_flag == FW_DEADLOCK) {
1940 pcmdmessagefld->cmdmessage.ReturnCode =
1941 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1943 pcmdmessagefld->cmdmessage.ReturnCode =
1944 ARCMSR_MESSAGE_RETURNCODE_OK;
1949 case ARCMSR_MESSAGE_RETURN_CODE_3F: {
1950 if(acb->fw_flag == FW_DEADLOCK) {
1951 pcmdmessagefld->cmdmessage.ReturnCode =
1952 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1954 pcmdmessagefld->cmdmessage.ReturnCode =
1955 ARCMSR_MESSAGE_RETURNCODE_3F;
1959 case ARCMSR_MESSAGE_SAY_HELLO: {
1960 int8_t *hello_string = "Hello! I am ARCMSR";
1961 if(acb->fw_flag == FW_DEADLOCK) {
1962 pcmdmessagefld->cmdmessage.ReturnCode =
1963 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1965 pcmdmessagefld->cmdmessage.ReturnCode =
1966 ARCMSR_MESSAGE_RETURNCODE_OK;
1968 memcpy(pcmdmessagefld->messagedatabuffer, hello_string
1969 , (int16_t)strlen(hello_string));
1973 case ARCMSR_MESSAGE_SAY_GOODBYE:
1974 if(acb->fw_flag == FW_DEADLOCK) {
1975 pcmdmessagefld->cmdmessage.ReturnCode =
1976 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1978 arcmsr_iop_parking(acb);
1981 case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
1982 if(acb->fw_flag == FW_DEADLOCK) {
1983 pcmdmessagefld->cmdmessage.ReturnCode =
1984 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1986 arcmsr_flush_adapter_cache(acb);
1990 retvalue = ARCMSR_MESSAGE_FAIL;
1993 sg = scsi_sglist(cmd);
1994 kunmap_atomic(buffer - sg->offset, KM_IRQ0);
1998 static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
2000 struct list_head *head = &acb->ccb_free_list;
2001 struct CommandControlBlock *ccb = NULL;
2002 unsigned long flags;
2003 spin_lock_irqsave(&acb->ccblist_lock, flags);
2004 if (!list_empty(head)) {
2005 ccb = list_entry(head->next, struct CommandControlBlock, list);
2006 list_del_init(&ccb->list);
2008 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2011 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2015 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
2016 struct scsi_cmnd *cmd)
2018 switch (cmd->cmnd[0]) {
2020 unsigned char inqdata[36];
2022 struct scatterlist *sg;
2024 if (cmd->device->lun) {
2025 cmd->result = (DID_TIME_OUT << 16);
2026 cmd->scsi_done(cmd);
2029 inqdata[0] = TYPE_PROCESSOR;
2030 /* Periph Qualifier & Periph Dev Type */
2032 /* rem media bit & Dev Type Modifier */
2034 /* ISO, ECMA, & ANSI versions */
2036 /* length of additional data */
2037 strncpy(&inqdata[8], "Areca ", 8);
2038 /* Vendor Identification */
2039 strncpy(&inqdata[16], "RAID controller ", 16);
2040 /* Product Identification */
2041 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
2043 sg = scsi_sglist(cmd);
2044 buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
2046 memcpy(buffer, inqdata, sizeof(inqdata));
2047 sg = scsi_sglist(cmd);
2048 kunmap_atomic(buffer - sg->offset, KM_IRQ0);
2050 cmd->scsi_done(cmd);
2055 if (arcmsr_iop_message_xfer(acb, cmd))
2056 cmd->result = (DID_ERROR << 16);
2057 cmd->scsi_done(cmd);
2061 cmd->scsi_done(cmd);
2065 static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
2066 void (* done)(struct scsi_cmnd *))
2068 struct Scsi_Host *host = cmd->device->host;
2069 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
2070 struct CommandControlBlock *ccb;
2071 int target = cmd->device->id;
2072 cmd->scsi_done = done;
2073 cmd->host_scribble = NULL;
2076 /* virtual device for iop message transfer */
2077 arcmsr_handle_virtual_command(acb, cmd);
2080 if (atomic_read(&acb->ccboutstandingcount) >=
2081 ARCMSR_MAX_OUTSTANDING_CMD)
2082 return SCSI_MLQUEUE_HOST_BUSY;
2083 ccb = arcmsr_get_freeccb(acb);
2085 return SCSI_MLQUEUE_HOST_BUSY;
2086 if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
2087 cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
2088 cmd->scsi_done(cmd);
2091 arcmsr_post_ccb(acb, ccb);
2095 static DEF_SCSI_QCMD(arcmsr_queue_command)
2097 static bool arcmsr_get_hba_config(struct AdapterControlBlock *acb)
2099 struct MessageUnit_A __iomem *reg = acb->pmuA;
2100 char *acb_firm_model = acb->firm_model;
2101 char *acb_firm_version = acb->firm_version;
2102 char *acb_device_map = acb->device_map;
2103 char __iomem *iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]);
2104 char __iomem *iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]);
2105 char __iomem *iop_device_map = (char __iomem *)(®->message_rwbuffer[21]);
2107 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2108 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2109 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2110 miscellaneous data' timeout \n", acb->host->host_no);
2115 *acb_firm_model = readb(iop_firm_model);
2123 *acb_firm_version = readb(iop_firm_version);
2131 *acb_device_map = readb(iop_device_map);
2136 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2140 acb->signature = readl(®->message_rwbuffer[0]);
2141 acb->firm_request_len = readl(®->message_rwbuffer[1]);
2142 acb->firm_numbers_queue = readl(®->message_rwbuffer[2]);
2143 acb->firm_sdram_size = readl(®->message_rwbuffer[3]);
2144 acb->firm_hd_channels = readl(®->message_rwbuffer[4]);
2145 acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2148 static bool arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
2150 struct MessageUnit_B *reg = acb->pmuB;
2151 struct pci_dev *pdev = acb->pdev;
2153 dma_addr_t dma_coherent_handle;
2154 char *acb_firm_model = acb->firm_model;
2155 char *acb_firm_version = acb->firm_version;
2156 char *acb_device_map = acb->device_map;
2157 char __iomem *iop_firm_model;
2158 /*firm_model,15,60-67*/
2159 char __iomem *iop_firm_version;
2160 /*firm_version,17,68-83*/
2161 char __iomem *iop_device_map;
2162 /*firm_version,21,84-99*/
2164 dma_coherent = dma_alloc_coherent(&pdev->dev, sizeof(struct MessageUnit_B), &dma_coherent_handle, GFP_KERNEL);
2166 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error for hbb mu\n", acb->host->host_no);
2169 acb->dma_coherent_handle_hbb_mu = dma_coherent_handle;
2170 reg = (struct MessageUnit_B *)dma_coherent;
2172 reg->drv2iop_doorbell= (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL);
2173 reg->drv2iop_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL_MASK);
2174 reg->iop2drv_doorbell = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL);
2175 reg->iop2drv_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL_MASK);
2176 reg->message_wbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_WBUFFER);
2177 reg->message_rbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RBUFFER);
2178 reg->message_rwbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RWBUFFER);
2179 iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]); /*firm_model,15,60-67*/
2180 iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]); /*firm_version,17,68-83*/
2181 iop_device_map = (char __iomem *)(®->message_rwbuffer[21]); /*firm_version,21,84-99*/
2183 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
2184 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2185 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2186 miscellaneous data' timeout \n", acb->host->host_no);
2191 *acb_firm_model = readb(iop_firm_model);
2198 *acb_firm_version = readb(iop_firm_version);
2206 *acb_device_map = readb(iop_device_map);
2212 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2217 acb->signature = readl(®->message_rwbuffer[1]);
2218 /*firm_signature,1,00-03*/
2219 acb->firm_request_len = readl(®->message_rwbuffer[2]);
2220 /*firm_request_len,1,04-07*/
2221 acb->firm_numbers_queue = readl(®->message_rwbuffer[3]);
2222 /*firm_numbers_queue,2,08-11*/
2223 acb->firm_sdram_size = readl(®->message_rwbuffer[4]);
2224 /*firm_sdram_size,3,12-15*/
2225 acb->firm_hd_channels = readl(®->message_rwbuffer[5]);
2226 /*firm_ide_channels,4,16-19*/
2227 acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2228 /*firm_ide_channels,4,16-19*/
2232 static bool arcmsr_get_hbc_config(struct AdapterControlBlock *pACB)
2234 uint32_t intmask_org, Index, firmware_state = 0;
2235 struct MessageUnit_C *reg = pACB->pmuC;
2236 char *acb_firm_model = pACB->firm_model;
2237 char *acb_firm_version = pACB->firm_version;
2238 char *iop_firm_model = (char *)(®->msgcode_rwbuffer[15]); /*firm_model,15,60-67*/
2239 char *iop_firm_version = (char *)(®->msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
2241 /* disable all outbound interrupt */
2242 intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
2243 writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
2244 /* wait firmware ready */
2246 firmware_state = readl(®->outbound_msgaddr1);
2247 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
2248 /* post "get config" instruction */
2249 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2250 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2251 /* wait message ready */
2252 for (Index = 0; Index < 2000; Index++) {
2253 if (readl(®->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
2254 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);/*clear interrupt*/
2259 if (Index >= 2000) {
2260 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2261 miscellaneous data' timeout \n", pACB->host->host_no);
2266 *acb_firm_model = readb(iop_firm_model);
2273 *acb_firm_version = readb(iop_firm_version);
2278 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2279 pACB->host->host_no,
2282 pACB->firm_request_len = readl(®->msgcode_rwbuffer[1]); /*firm_request_len,1,04-07*/
2283 pACB->firm_numbers_queue = readl(®->msgcode_rwbuffer[2]); /*firm_numbers_queue,2,08-11*/
2284 pACB->firm_sdram_size = readl(®->msgcode_rwbuffer[3]); /*firm_sdram_size,3,12-15*/
2285 pACB->firm_hd_channels = readl(®->msgcode_rwbuffer[4]); /*firm_ide_channels,4,16-19*/
2286 pACB->firm_cfg_version = readl(®->msgcode_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2287 /*all interrupt service will be enable at arcmsr_iop_init*/
2290 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
2292 if (acb->adapter_type == ACB_ADAPTER_TYPE_A)
2293 return arcmsr_get_hba_config(acb);
2294 else if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
2295 return arcmsr_get_hbb_config(acb);
2297 return arcmsr_get_hbc_config(acb);
2300 static int arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
2301 struct CommandControlBlock *poll_ccb)
2303 struct MessageUnit_A __iomem *reg = acb->pmuA;
2304 struct CommandControlBlock *ccb;
2305 struct ARCMSR_CDB *arcmsr_cdb;
2306 uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
2309 polling_hba_ccb_retry:
2311 outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable;
2312 writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
2314 if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) {
2320 if (poll_count > 100){
2324 goto polling_hba_ccb_retry;
2327 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
2328 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2329 poll_ccb_done = (ccb == poll_ccb) ? 1:0;
2330 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
2331 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
2332 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2333 " poll command abort successfully \n"
2334 , acb->host->host_no
2335 , ccb->pcmd->device->id
2336 , ccb->pcmd->device->lun
2338 ccb->pcmd->result = DID_ABORT << 16;
2339 arcmsr_ccb_complete(ccb);
2342 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2343 " command done ccb = '0x%p'"
2344 "ccboutstandingcount = %d \n"
2345 , acb->host->host_no
2347 , atomic_read(&acb->ccboutstandingcount));
2350 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2351 arcmsr_report_ccb_state(acb, ccb, error);
2356 static int arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb,
2357 struct CommandControlBlock *poll_ccb)
2359 struct MessageUnit_B *reg = acb->pmuB;
2360 struct ARCMSR_CDB *arcmsr_cdb;
2361 struct CommandControlBlock *ccb;
2362 uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
2365 polling_hbb_ccb_retry:
2368 /* clear doorbell interrupt */
2369 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2371 index = reg->doneq_index;
2372 if ((flag_ccb = readl(®->done_qbuffer[index])) == 0) {
2378 if (poll_count > 100){
2382 goto polling_hbb_ccb_retry;
2385 writel(0, ®->done_qbuffer[index]);
2387 /*if last index number set it to 0 */
2388 index %= ARCMSR_MAX_HBB_POSTQUEUE;
2389 reg->doneq_index = index;
2390 /* check if command done with no error*/
2391 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
2392 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2393 poll_ccb_done = (ccb == poll_ccb) ? 1:0;
2394 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
2395 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
2396 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2397 " poll command abort successfully \n"
2399 ,ccb->pcmd->device->id
2400 ,ccb->pcmd->device->lun
2402 ccb->pcmd->result = DID_ABORT << 16;
2403 arcmsr_ccb_complete(ccb);
2406 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2407 " command done ccb = '0x%p'"
2408 "ccboutstandingcount = %d \n"
2409 , acb->host->host_no
2411 , atomic_read(&acb->ccboutstandingcount));
2414 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2415 arcmsr_report_ccb_state(acb, ccb, error);
2420 static int arcmsr_polling_hbc_ccbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_ccb)
2422 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2423 uint32_t flag_ccb, ccb_cdb_phy;
2424 struct ARCMSR_CDB *arcmsr_cdb;
2426 struct CommandControlBlock *pCCB;
2427 uint32_t poll_ccb_done = 0, poll_count = 0;
2429 polling_hbc_ccb_retry:
2432 if ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) == 0) {
2433 if (poll_ccb_done) {
2438 if (poll_count > 100) {
2442 goto polling_hbc_ccb_retry;
2445 flag_ccb = readl(®->outbound_queueport_low);
2446 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
2447 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);/*frame must be 32 bytes aligned*/
2448 pCCB = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2449 poll_ccb_done = (pCCB == poll_ccb) ? 1 : 0;
2450 /* check ifcommand done with no error*/
2451 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
2452 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
2453 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2454 " poll command abort successfully \n"
2455 , acb->host->host_no
2456 , pCCB->pcmd->device->id
2457 , pCCB->pcmd->device->lun
2459 pCCB->pcmd->result = DID_ABORT << 16;
2460 arcmsr_ccb_complete(pCCB);
2463 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2464 " command done ccb = '0x%p'"
2465 "ccboutstandingcount = %d \n"
2466 , acb->host->host_no
2468 , atomic_read(&acb->ccboutstandingcount));
2471 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
2472 arcmsr_report_ccb_state(acb, pCCB, error);
2476 static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
2477 struct CommandControlBlock *poll_ccb)
2480 switch (acb->adapter_type) {
2482 case ACB_ADAPTER_TYPE_A: {
2483 rtn = arcmsr_polling_hba_ccbdone(acb, poll_ccb);
2487 case ACB_ADAPTER_TYPE_B: {
2488 rtn = arcmsr_polling_hbb_ccbdone(acb, poll_ccb);
2491 case ACB_ADAPTER_TYPE_C: {
2492 rtn = arcmsr_polling_hbc_ccbdone(acb, poll_ccb);
2498 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
2500 uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
2501 dma_addr_t dma_coherent_handle;
2503 ********************************************************************
2504 ** here we need to tell iop 331 our freeccb.HighPart
2505 ** if freeccb.HighPart is not zero
2506 ********************************************************************
2508 dma_coherent_handle = acb->dma_coherent_handle;
2509 cdb_phyaddr = (uint32_t)(dma_coherent_handle);
2510 cdb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16);
2511 acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
2513 ***********************************************************************
2514 ** if adapter type B, set window of "post command Q"
2515 ***********************************************************************
2517 switch (acb->adapter_type) {
2519 case ACB_ADAPTER_TYPE_A: {
2520 if (cdb_phyaddr_hi32 != 0) {
2521 struct MessageUnit_A __iomem *reg = acb->pmuA;
2522 uint32_t intmask_org;
2523 intmask_org = arcmsr_disable_outbound_ints(acb);
2524 writel(ARCMSR_SIGNATURE_SET_CONFIG, \
2525 ®->message_rwbuffer[0]);
2526 writel(cdb_phyaddr_hi32, ®->message_rwbuffer[1]);
2527 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \
2528 ®->inbound_msgaddr0);
2529 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2530 printk(KERN_NOTICE "arcmsr%d: ""set ccb high \
2531 part physical address timeout\n",
2532 acb->host->host_no);
2535 arcmsr_enable_outbound_ints(acb, intmask_org);
2540 case ACB_ADAPTER_TYPE_B: {
2541 unsigned long post_queue_phyaddr;
2542 uint32_t __iomem *rwbuffer;
2544 struct MessageUnit_B *reg = acb->pmuB;
2545 uint32_t intmask_org;
2546 intmask_org = arcmsr_disable_outbound_ints(acb);
2547 reg->postq_index = 0;
2548 reg->doneq_index = 0;
2549 writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell);
2550 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2551 printk(KERN_NOTICE "arcmsr%d:can not set diver mode\n", \
2552 acb->host->host_no);
2555 post_queue_phyaddr = acb->dma_coherent_handle_hbb_mu;
2556 rwbuffer = reg->message_rwbuffer;
2557 /* driver "set config" signature */
2558 writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
2559 /* normal should be zero */
2560 writel(cdb_phyaddr_hi32, rwbuffer++);
2561 /* postQ size (256 + 8)*4 */
2562 writel(post_queue_phyaddr, rwbuffer++);
2563 /* doneQ size (256 + 8)*4 */
2564 writel(post_queue_phyaddr + 1056, rwbuffer++);
2565 /* ccb maxQ size must be --> [(256 + 8)*4]*/
2566 writel(1056, rwbuffer);
2568 writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
2569 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2570 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
2571 timeout \n",acb->host->host_no);
2574 arcmsr_hbb_enable_driver_mode(acb);
2575 arcmsr_enable_outbound_ints(acb, intmask_org);
2578 case ACB_ADAPTER_TYPE_C: {
2579 if (cdb_phyaddr_hi32 != 0) {
2580 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2582 printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
2583 acb->adapter_index, cdb_phyaddr_hi32);
2584 writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
2585 writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[1]);
2586 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
2587 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2588 if (!arcmsr_hbc_wait_msgint_ready(acb)) {
2589 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
2590 timeout \n", acb->host->host_no);
2599 static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
2601 uint32_t firmware_state = 0;
2602 switch (acb->adapter_type) {
2604 case ACB_ADAPTER_TYPE_A: {
2605 struct MessageUnit_A __iomem *reg = acb->pmuA;
2607 firmware_state = readl(®->outbound_msgaddr1);
2608 } while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0);
2612 case ACB_ADAPTER_TYPE_B: {
2613 struct MessageUnit_B *reg = acb->pmuB;
2615 firmware_state = readl(reg->iop2drv_doorbell);
2616 } while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0);
2617 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
2620 case ACB_ADAPTER_TYPE_C: {
2621 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2623 firmware_state = readl(®->outbound_msgaddr1);
2624 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
2629 static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb)
2631 struct MessageUnit_A __iomem *reg = acb->pmuA;
2632 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
2633 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2636 acb->fw_flag = FW_NORMAL;
2637 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)){
2638 atomic_set(&acb->rq_map_token, 16);
2640 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2641 if (atomic_dec_and_test(&acb->rq_map_token)) {
2642 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2645 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2646 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2651 static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb)
2653 struct MessageUnit_B __iomem *reg = acb->pmuB;
2654 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
2655 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2658 acb->fw_flag = FW_NORMAL;
2659 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
2660 atomic_set(&acb->rq_map_token, 16);
2662 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2663 if (atomic_dec_and_test(&acb->rq_map_token)) {
2664 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2667 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
2668 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2673 static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb)
2675 struct MessageUnit_C __iomem *reg = acb->pmuC;
2676 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
2677 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2680 acb->fw_flag = FW_NORMAL;
2681 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
2682 atomic_set(&acb->rq_map_token, 16);
2684 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2685 if (atomic_dec_and_test(&acb->rq_map_token)) {
2686 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2689 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2690 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2691 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2696 static void arcmsr_request_device_map(unsigned long pacb)
2698 struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb;
2699 switch (acb->adapter_type) {
2700 case ACB_ADAPTER_TYPE_A: {
2701 arcmsr_request_hba_device_map(acb);
2704 case ACB_ADAPTER_TYPE_B: {
2705 arcmsr_request_hbb_device_map(acb);
2708 case ACB_ADAPTER_TYPE_C: {
2709 arcmsr_request_hbc_device_map(acb);
2714 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
2716 struct MessageUnit_A __iomem *reg = acb->pmuA;
2717 acb->acb_flags |= ACB_F_MSG_START_BGRB;
2718 writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0);
2719 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2720 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2721 rebulid' timeout \n", acb->host->host_no);
2725 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
2727 struct MessageUnit_B *reg = acb->pmuB;
2728 acb->acb_flags |= ACB_F_MSG_START_BGRB;
2729 writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
2730 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2731 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2732 rebulid' timeout \n",acb->host->host_no);
2736 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *pACB)
2738 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
2739 pACB->acb_flags |= ACB_F_MSG_START_BGRB;
2740 writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
2741 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
2742 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
2743 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2744 rebulid' timeout \n", pACB->host->host_no);
2748 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
2750 switch (acb->adapter_type) {
2751 case ACB_ADAPTER_TYPE_A:
2752 arcmsr_start_hba_bgrb(acb);
2754 case ACB_ADAPTER_TYPE_B:
2755 arcmsr_start_hbb_bgrb(acb);
2757 case ACB_ADAPTER_TYPE_C:
2758 arcmsr_start_hbc_bgrb(acb);
2762 static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
2764 switch (acb->adapter_type) {
2765 case ACB_ADAPTER_TYPE_A: {
2766 struct MessageUnit_A __iomem *reg = acb->pmuA;
2767 uint32_t outbound_doorbell;
2768 /* empty doorbell Qbuffer if door bell ringed */
2769 outbound_doorbell = readl(®->outbound_doorbell);
2770 /*clear doorbell interrupt */
2771 writel(outbound_doorbell, ®->outbound_doorbell);
2772 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
2776 case ACB_ADAPTER_TYPE_B: {
2777 struct MessageUnit_B *reg = acb->pmuB;
2778 /*clear interrupt and message state*/
2779 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2780 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
2781 /* let IOP know data has been read */
2784 case ACB_ADAPTER_TYPE_C: {
2785 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2786 uint32_t outbound_doorbell;
2787 /* empty doorbell Qbuffer if door bell ringed */
2788 outbound_doorbell = readl(®->outbound_doorbell);
2789 writel(outbound_doorbell, ®->outbound_doorbell_clear);
2790 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
2795 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
2797 switch (acb->adapter_type) {
2798 case ACB_ADAPTER_TYPE_A:
2800 case ACB_ADAPTER_TYPE_B:
2802 struct MessageUnit_B *reg = acb->pmuB;
2803 writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
2804 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2805 printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
2810 case ACB_ADAPTER_TYPE_C:
2816 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
2820 struct MessageUnit_A __iomem *pmuA = acb->pmuA;
2821 struct MessageUnit_C __iomem *pmuC = acb->pmuC;
2823 /* backup pci config data */
2824 printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no);
2825 for (i = 0; i < 64; i++) {
2826 pci_read_config_byte(acb->pdev, i, &value[i]);
2828 /* hardware reset signal */
2829 if ((acb->dev_id == 0x1680)) {
2830 writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
2831 } else if ((acb->dev_id == 0x1880)) {
2834 writel(0xF, &pmuC->write_sequence);
2835 writel(0x4, &pmuC->write_sequence);
2836 writel(0xB, &pmuC->write_sequence);
2837 writel(0x2, &pmuC->write_sequence);
2838 writel(0x7, &pmuC->write_sequence);
2839 writel(0xD, &pmuC->write_sequence);
2840 } while ((((temp = readl(&pmuC->host_diagnostic)) | ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
2841 writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
2843 pci_write_config_byte(acb->pdev, 0x84, 0x20);
2846 /* write back pci config data */
2847 for (i = 0; i < 64; i++) {
2848 pci_write_config_byte(acb->pdev, i, value[i]);
2853 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
2855 uint32_t intmask_org;
2856 /* disable all outbound interrupt */
2857 intmask_org = arcmsr_disable_outbound_ints(acb);
2858 arcmsr_wait_firmware_ready(acb);
2859 arcmsr_iop_confirm(acb);
2860 /*start background rebuild*/
2861 arcmsr_start_adapter_bgrb(acb);
2862 /* empty doorbell Qbuffer if door bell ringed */
2863 arcmsr_clear_doorbell_queue_buffer(acb);
2864 arcmsr_enable_eoi_mode(acb);
2865 /* enable outbound Post Queue,outbound doorbell Interrupt */
2866 arcmsr_enable_outbound_ints(acb, intmask_org);
2867 acb->acb_flags |= ACB_F_IOP_INITED;
2870 static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
2872 struct CommandControlBlock *ccb;
2873 uint32_t intmask_org;
2874 uint8_t rtnval = 0x00;
2876 unsigned long flags;
2878 if (atomic_read(&acb->ccboutstandingcount) != 0) {
2879 /* disable all outbound interrupt */
2880 intmask_org = arcmsr_disable_outbound_ints(acb);
2881 /* talk to iop 331 outstanding command aborted */
2882 rtnval = arcmsr_abort_allcmd(acb);
2883 /* clear all outbound posted Q */
2884 arcmsr_done4abort_postqueue(acb);
2885 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
2886 ccb = acb->pccb_pool[i];
2887 if (ccb->startdone == ARCMSR_CCB_START) {
2888 scsi_dma_unmap(ccb->pcmd);
2889 ccb->startdone = ARCMSR_CCB_DONE;
2891 spin_lock_irqsave(&acb->ccblist_lock, flags);
2892 list_add_tail(&ccb->list, &acb->ccb_free_list);
2893 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2896 atomic_set(&acb->ccboutstandingcount, 0);
2897 /* enable all outbound interrupt */
2898 arcmsr_enable_outbound_ints(acb, intmask_org);
2904 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
2906 struct AdapterControlBlock *acb;
2907 uint32_t intmask_org, outbound_doorbell;
2908 int retry_count = 0;
2910 acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
2911 printk(KERN_ERR "arcmsr: executing bus reset eh.....num_resets = %d, num_aborts = %d \n", acb->num_resets, acb->num_aborts);
2914 switch(acb->adapter_type){
2915 case ACB_ADAPTER_TYPE_A:{
2916 if (acb->acb_flags & ACB_F_BUS_RESET){
2918 printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
2919 timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
2924 acb->acb_flags |= ACB_F_BUS_RESET;
2925 if (!arcmsr_iop_reset(acb)) {
2926 struct MessageUnit_A __iomem *reg;
2928 arcmsr_hardware_reset(acb);
2929 acb->acb_flags &= ~ACB_F_IOP_INITED;
2931 ssleep(ARCMSR_SLEEPTIME);
2932 if ((readl(®->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
2933 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
2934 if (retry_count > ARCMSR_RETRYCOUNT) {
2935 acb->fw_flag = FW_DEADLOCK;
2936 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
2942 acb->acb_flags |= ACB_F_IOP_INITED;
2943 /* disable all outbound interrupt */
2944 intmask_org = arcmsr_disable_outbound_ints(acb);
2945 arcmsr_get_firmware_spec(acb);
2946 arcmsr_start_adapter_bgrb(acb);
2947 /* clear Qbuffer if door bell ringed */
2948 outbound_doorbell = readl(®->outbound_doorbell);
2949 writel(outbound_doorbell, ®->outbound_doorbell); /*clear interrupt */
2950 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
2951 /* enable outbound Post Queue,outbound doorbell Interrupt */
2952 arcmsr_enable_outbound_ints(acb, intmask_org);
2953 atomic_set(&acb->rq_map_token, 16);
2954 atomic_set(&acb->ante_token_value, 16);
2955 acb->fw_flag = FW_NORMAL;
2956 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2957 acb->acb_flags &= ~ACB_F_BUS_RESET;
2959 printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
2961 acb->acb_flags &= ~ACB_F_BUS_RESET;
2962 atomic_set(&acb->rq_map_token, 16);
2963 atomic_set(&acb->ante_token_value, 16);
2964 acb->fw_flag = FW_NORMAL;
2965 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
2970 case ACB_ADAPTER_TYPE_B:{
2971 acb->acb_flags |= ACB_F_BUS_RESET;
2972 if (!arcmsr_iop_reset(acb)) {
2973 acb->acb_flags &= ~ACB_F_BUS_RESET;
2976 acb->acb_flags &= ~ACB_F_BUS_RESET;
2977 atomic_set(&acb->rq_map_token, 16);
2978 atomic_set(&acb->ante_token_value, 16);
2979 acb->fw_flag = FW_NORMAL;
2980 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2985 case ACB_ADAPTER_TYPE_C:{
2986 if (acb->acb_flags & ACB_F_BUS_RESET) {
2988 printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
2989 timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
2994 acb->acb_flags |= ACB_F_BUS_RESET;
2995 if (!arcmsr_iop_reset(acb)) {
2996 struct MessageUnit_C __iomem *reg;
2998 arcmsr_hardware_reset(acb);
2999 acb->acb_flags &= ~ACB_F_IOP_INITED;
3001 ssleep(ARCMSR_SLEEPTIME);
3002 if ((readl(®->host_diagnostic) & 0x04) != 0) {
3003 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
3004 if (retry_count > ARCMSR_RETRYCOUNT) {
3005 acb->fw_flag = FW_DEADLOCK;
3006 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
3012 acb->acb_flags |= ACB_F_IOP_INITED;
3013 /* disable all outbound interrupt */
3014 intmask_org = arcmsr_disable_outbound_ints(acb);
3015 arcmsr_get_firmware_spec(acb);
3016 arcmsr_start_adapter_bgrb(acb);
3017 /* clear Qbuffer if door bell ringed */
3018 outbound_doorbell = readl(®->outbound_doorbell);
3019 writel(outbound_doorbell, ®->outbound_doorbell_clear); /*clear interrupt */
3020 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
3021 /* enable outbound Post Queue,outbound doorbell Interrupt */
3022 arcmsr_enable_outbound_ints(acb, intmask_org);
3023 atomic_set(&acb->rq_map_token, 16);
3024 atomic_set(&acb->ante_token_value, 16);
3025 acb->fw_flag = FW_NORMAL;
3026 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
3027 acb->acb_flags &= ~ACB_F_BUS_RESET;
3029 printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
3031 acb->acb_flags &= ~ACB_F_BUS_RESET;
3032 atomic_set(&acb->rq_map_token, 16);
3033 atomic_set(&acb->ante_token_value, 16);
3034 acb->fw_flag = FW_NORMAL;
3035 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
3044 static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
3045 struct CommandControlBlock *ccb)
3048 rtn = arcmsr_polling_ccbdone(acb, ccb);
3052 static int arcmsr_abort(struct scsi_cmnd *cmd)
3054 struct AdapterControlBlock *acb =
3055 (struct AdapterControlBlock *)cmd->device->host->hostdata;
3059 "arcmsr%d: abort device command of scsi id = %d lun = %d \n",
3060 acb->host->host_no, cmd->device->id, cmd->device->lun);
3061 acb->acb_flags |= ACB_F_ABORT;
3064 ************************************************
3065 ** the all interrupt service routine is locked
3066 ** we need to handle it as soon as possible and exit
3067 ************************************************
3069 if (!atomic_read(&acb->ccboutstandingcount))
3072 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
3073 struct CommandControlBlock *ccb = acb->pccb_pool[i];
3074 if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
3075 ccb->startdone = ARCMSR_CCB_ABORTED;
3076 rtn = arcmsr_abort_one_cmd(acb, ccb);
3080 acb->acb_flags &= ~ACB_F_ABORT;
3084 static const char *arcmsr_info(struct Scsi_Host *host)
3086 struct AdapterControlBlock *acb =
3087 (struct AdapterControlBlock *) host->hostdata;
3088 static char buf[256];
3091 switch (acb->pdev->device) {
3092 case PCI_DEVICE_ID_ARECA_1110:
3093 case PCI_DEVICE_ID_ARECA_1200:
3094 case PCI_DEVICE_ID_ARECA_1202:
3095 case PCI_DEVICE_ID_ARECA_1210:
3098 case PCI_DEVICE_ID_ARECA_1120:
3099 case PCI_DEVICE_ID_ARECA_1130:
3100 case PCI_DEVICE_ID_ARECA_1160:
3101 case PCI_DEVICE_ID_ARECA_1170:
3102 case PCI_DEVICE_ID_ARECA_1201:
3103 case PCI_DEVICE_ID_ARECA_1220:
3104 case PCI_DEVICE_ID_ARECA_1230:
3105 case PCI_DEVICE_ID_ARECA_1260:
3106 case PCI_DEVICE_ID_ARECA_1270:
3107 case PCI_DEVICE_ID_ARECA_1280:
3110 case PCI_DEVICE_ID_ARECA_1380:
3111 case PCI_DEVICE_ID_ARECA_1381:
3112 case PCI_DEVICE_ID_ARECA_1680:
3113 case PCI_DEVICE_ID_ARECA_1681:
3114 case PCI_DEVICE_ID_ARECA_1880:
3121 sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
3122 type, raid6 ? "( RAID6 capable)" : "",
3123 ARCMSR_DRIVER_VERSION);