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/pci.h>
60 #include <linux/aer.h>
63 #include <asm/system.h>
64 #include <asm/uaccess.h>
65 #include <scsi/scsi_host.h>
66 #include <scsi/scsi.h>
67 #include <scsi/scsi_cmnd.h>
68 #include <scsi/scsi_tcq.h>
69 #include <scsi/scsi_device.h>
70 #include <scsi/scsi_transport.h>
71 #include <scsi/scsicam.h>
73 MODULE_AUTHOR("Nick Cheng <support@areca.com.tw>");
74 MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880) SATA/SAS RAID Host Bus Adapter");
75 MODULE_LICENSE("Dual BSD/GPL");
76 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
77 static int sleeptime = 10;
78 static int retrycount = 30;
79 wait_queue_head_t wait_q;
80 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
81 struct scsi_cmnd *cmd);
82 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
83 static int arcmsr_abort(struct scsi_cmnd *);
84 static int arcmsr_bus_reset(struct scsi_cmnd *);
85 static int arcmsr_bios_param(struct scsi_device *sdev,
86 struct block_device *bdev, sector_t capacity, int *info);
87 static int arcmsr_queue_command(struct scsi_cmnd *cmd,
88 void (*done) (struct scsi_cmnd *));
89 static int arcmsr_probe(struct pci_dev *pdev,
90 const struct pci_device_id *id);
91 static void arcmsr_remove(struct pci_dev *pdev);
92 static void arcmsr_shutdown(struct pci_dev *pdev);
93 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
94 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
95 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
96 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
97 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
98 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
99 static void arcmsr_request_device_map(unsigned long pacb);
100 static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb);
101 static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb);
102 static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb);
103 static void arcmsr_message_isr_bh_fn(struct work_struct *work);
104 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
105 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
106 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *pACB);
107 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
108 static const char *arcmsr_info(struct Scsi_Host *);
109 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
110 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
111 int queue_depth, int reason)
113 if (reason != SCSI_QDEPTH_DEFAULT)
116 if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
117 queue_depth = ARCMSR_MAX_CMD_PERLUN;
118 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
122 static struct scsi_host_template arcmsr_scsi_host_template = {
123 .module = THIS_MODULE,
124 .name = "ARCMSR ARECA SATA/SAS RAID Controller"
125 ARCMSR_DRIVER_VERSION,
127 .queuecommand = arcmsr_queue_command,
128 .eh_abort_handler = arcmsr_abort,
129 .eh_bus_reset_handler = arcmsr_bus_reset,
130 .bios_param = arcmsr_bios_param,
131 .change_queue_depth = arcmsr_adjust_disk_queue_depth,
132 .can_queue = ARCMSR_MAX_FREECCB_NUM,
133 .this_id = ARCMSR_SCSI_INITIATOR_ID,
134 .sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
135 .max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
136 .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
137 .use_clustering = ENABLE_CLUSTERING,
138 .shost_attrs = arcmsr_host_attrs,
140 static struct pci_device_id arcmsr_device_id_table[] = {
141 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
142 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
143 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)},
144 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)},
145 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)},
146 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200)},
147 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201)},
148 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202)},
149 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)},
150 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)},
151 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)},
152 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)},
153 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)},
154 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)},
155 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)},
156 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)},
157 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)},
158 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)},
159 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880)},
160 {0, 0}, /* Terminating entry */
162 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
163 static struct pci_driver arcmsr_pci_driver = {
165 .id_table = arcmsr_device_id_table,
166 .probe = arcmsr_probe,
167 .remove = arcmsr_remove,
168 .shutdown = arcmsr_shutdown,
171 ****************************************************************************
172 ****************************************************************************
174 int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd)
176 struct Scsi_Host *shost = NULL;
178 shost = cmd->device->host;
179 isleep = sleeptime / 10;
181 for (i = 0; i < isleep; i++) {
186 isleep = sleeptime % 10;
190 printk(KERN_NOTICE "wake-up\n");
194 static void arcmsr_free_hbb_mu(struct AdapterControlBlock *acb)
196 switch (acb->adapter_type) {
197 case ACB_ADAPTER_TYPE_A:
198 case ACB_ADAPTER_TYPE_C:
200 case ACB_ADAPTER_TYPE_B:{
201 dma_free_coherent(&acb->pdev->dev,
202 sizeof(struct MessageUnit_B),
203 acb->pmuB, acb->dma_coherent_handle_hbb_mu);
208 static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
210 struct pci_dev *pdev = acb->pdev;
211 switch (acb->adapter_type){
212 case ACB_ADAPTER_TYPE_A:{
213 acb->pmuA = ioremap(pci_resource_start(pdev,0), pci_resource_len(pdev,0));
215 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
220 case ACB_ADAPTER_TYPE_B:{
221 void __iomem *mem_base0, *mem_base1;
222 mem_base0 = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
224 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
227 mem_base1 = ioremap(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
230 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
233 acb->mem_base0 = mem_base0;
234 acb->mem_base1 = mem_base1;
237 case ACB_ADAPTER_TYPE_C:{
238 acb->pmuC = ioremap_nocache(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
240 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
243 if (readl(&acb->pmuC->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
244 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &acb->pmuC->outbound_doorbell_clear);/*clear interrupt*/
253 static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
255 switch (acb->adapter_type) {
256 case ACB_ADAPTER_TYPE_A:{
260 case ACB_ADAPTER_TYPE_B:{
261 iounmap(acb->mem_base0);
262 iounmap(acb->mem_base1);
266 case ACB_ADAPTER_TYPE_C:{
272 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
274 irqreturn_t handle_state;
275 struct AdapterControlBlock *acb = dev_id;
277 handle_state = arcmsr_interrupt(acb);
281 static int arcmsr_bios_param(struct scsi_device *sdev,
282 struct block_device *bdev, sector_t capacity, int *geom)
284 int ret, heads, sectors, cylinders, total_capacity;
285 unsigned char *buffer;/* return copy of block device's partition table */
287 buffer = scsi_bios_ptable(bdev);
289 ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]);
294 total_capacity = capacity;
297 cylinders = total_capacity / (heads * sectors);
298 if (cylinders > 1024) {
301 cylinders = total_capacity / (heads * sectors);
309 static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
311 struct pci_dev *pdev = acb->pdev;
313 pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
314 acb->dev_id = dev_id;
317 acb->adapter_type = ACB_ADAPTER_TYPE_C;
321 acb->adapter_type = ACB_ADAPTER_TYPE_B;
325 default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
329 static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
331 struct MessageUnit_A __iomem *reg = acb->pmuA;
333 uint8_t Retries = 0x00;
335 for (Index = 0; Index < 100; Index++) {
336 if (readl(®->outbound_intstatus) &
337 ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
338 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
339 ®->outbound_intstatus);
345 } while (Retries++ < 20);/*max 20 sec*/
349 static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
351 struct MessageUnit_B *reg = acb->pmuB;
353 uint8_t Retries = 0x00;
355 for (Index = 0; Index < 100; Index++) {
356 if (readl(reg->iop2drv_doorbell)
357 & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
358 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN
359 , reg->iop2drv_doorbell);
360 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
366 } while (Retries++ < 20);/*max 20 sec*/
370 static uint8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *pACB)
372 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
373 unsigned char Retries = 0x00;
376 for (Index = 0; Index < 100; Index++) {
377 if (readl(&phbcmu->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
378 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &phbcmu->outbound_doorbell_clear);/*clear interrupt*/
384 } while (Retries++ < 20); /*max 20 sec*/
387 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
389 struct MessageUnit_A __iomem *reg = acb->pmuA;
390 int retry_count = 30;
391 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
393 if (arcmsr_hba_wait_msgint_ready(acb))
397 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
398 timeout, retry count down = %d \n", acb->host->host_no, retry_count);
400 } while (retry_count != 0);
403 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
405 struct MessageUnit_B *reg = acb->pmuB;
406 int retry_count = 30;
407 writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
409 if (arcmsr_hbb_wait_msgint_ready(acb))
413 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
414 timeout,retry count down = %d \n", acb->host->host_no, retry_count);
416 } while (retry_count != 0);
419 static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *pACB)
421 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
422 int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
423 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
424 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
426 if (arcmsr_hbc_wait_msgint_ready(pACB)) {
430 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
431 timeout,retry count down = %d \n", pACB->host->host_no, retry_count);
433 } while (retry_count != 0);
436 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
438 switch (acb->adapter_type) {
440 case ACB_ADAPTER_TYPE_A: {
441 arcmsr_flush_hba_cache(acb);
445 case ACB_ADAPTER_TYPE_B: {
446 arcmsr_flush_hbb_cache(acb);
449 case ACB_ADAPTER_TYPE_C: {
450 arcmsr_flush_hbc_cache(acb);
455 static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
457 struct pci_dev *pdev = acb->pdev;
459 dma_addr_t dma_coherent_handle;
460 struct CommandControlBlock *ccb_tmp;
462 dma_addr_t cdb_phyaddr;
463 unsigned long roundup_ccbsize = 0, offset;
464 unsigned long max_xfer_len;
465 unsigned long max_sg_entrys;
466 uint32_t firm_config_version;
467 for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
468 for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
469 acb->devstate[i][j] = ARECA_RAID_GONE;
471 max_xfer_len = ARCMSR_MAX_XFER_LEN;
472 max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
473 firm_config_version = acb->firm_cfg_version;
474 if((firm_config_version & 0xFF) >= 3){
475 max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
476 max_sg_entrys = (max_xfer_len/4096);
478 acb->host->max_sectors = max_xfer_len/512;
479 acb->host->sg_tablesize = max_sg_entrys;
480 roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
481 acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM + 32;
482 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
484 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error \n", acb->host->host_no);
487 acb->dma_coherent = dma_coherent;
488 acb->dma_coherent_handle = dma_coherent_handle;
489 memset(dma_coherent, 0, acb->uncache_size);
490 offset = roundup((unsigned long)dma_coherent, 32) - (unsigned long)dma_coherent;
491 dma_coherent_handle = dma_coherent_handle + offset;
492 dma_coherent = (struct CommandControlBlock *)dma_coherent + offset;
493 ccb_tmp = dma_coherent;
494 acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
495 for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
496 cdb_phyaddr = dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
497 ccb_tmp->cdb_phyaddr_pattern = ((acb->adapter_type == ACB_ADAPTER_TYPE_C) ? cdb_phyaddr : (cdb_phyaddr >> 5));
498 acb->pccb_pool[i] = ccb_tmp;
500 INIT_LIST_HEAD(&ccb_tmp->list);
501 list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
502 ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
503 dma_coherent_handle = dma_coherent_handle + roundup_ccbsize;
508 static void arcmsr_message_isr_bh_fn(struct work_struct *work)
510 struct AdapterControlBlock *acb = container_of(work,struct AdapterControlBlock, arcmsr_do_message_isr_bh);
511 switch (acb->adapter_type) {
512 case ACB_ADAPTER_TYPE_A: {
514 struct MessageUnit_A __iomem *reg = acb->pmuA;
515 char *acb_dev_map = (char *)acb->device_map;
516 uint32_t __iomem *signature = (uint32_t __iomem*) (®->message_rwbuffer[0]);
517 char __iomem *devicemap = (char __iomem*) (®->message_rwbuffer[21]);
519 struct scsi_device *psdev;
522 atomic_inc(&acb->rq_map_token);
523 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
524 for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
525 diff = (*acb_dev_map)^readb(devicemap);
528 *acb_dev_map = readb(devicemap);
530 for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
531 if((temp & 0x01)==1 && (diff & 0x01) == 1) {
532 scsi_add_device(acb->host, 0, target, lun);
533 }else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
534 psdev = scsi_device_lookup(acb->host, 0, target, lun);
535 if (psdev != NULL ) {
536 scsi_remove_device(psdev);
537 scsi_device_put(psdev);
551 case ACB_ADAPTER_TYPE_B: {
552 struct MessageUnit_B *reg = acb->pmuB;
553 char *acb_dev_map = (char *)acb->device_map;
554 uint32_t __iomem *signature = (uint32_t __iomem*)(®->message_rwbuffer[0]);
555 char __iomem *devicemap = (char __iomem*)(®->message_rwbuffer[21]);
557 struct scsi_device *psdev;
560 atomic_inc(&acb->rq_map_token);
561 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
562 for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
563 diff = (*acb_dev_map)^readb(devicemap);
566 *acb_dev_map = readb(devicemap);
568 for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
569 if((temp & 0x01)==1 && (diff & 0x01) == 1) {
570 scsi_add_device(acb->host, 0, target, lun);
571 }else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
572 psdev = scsi_device_lookup(acb->host, 0, target, lun);
573 if (psdev != NULL ) {
574 scsi_remove_device(psdev);
575 scsi_device_put(psdev);
588 case ACB_ADAPTER_TYPE_C: {
589 struct MessageUnit_C *reg = acb->pmuC;
590 char *acb_dev_map = (char *)acb->device_map;
591 uint32_t __iomem *signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
592 char __iomem *devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
594 struct scsi_device *psdev;
597 atomic_inc(&acb->rq_map_token);
598 if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
599 for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) {
600 diff = (*acb_dev_map)^readb(devicemap);
603 *acb_dev_map = readb(devicemap);
605 for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
606 if ((temp & 0x01) == 1 && (diff & 0x01) == 1) {
607 scsi_add_device(acb->host, 0, target, lun);
608 } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) {
609 psdev = scsi_device_lookup(acb->host, 0, target, lun);
611 scsi_remove_device(psdev);
612 scsi_device_put(psdev);
627 static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
629 struct Scsi_Host *host;
630 struct AdapterControlBlock *acb;
633 error = pci_enable_device(pdev);
637 host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct AdapterControlBlock));
639 goto pci_disable_dev;
641 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
643 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
646 "scsi%d: No suitable DMA mask available\n",
648 goto scsi_host_release;
651 init_waitqueue_head(&wait_q);
652 bus = pdev->bus->number;
653 dev_fun = pdev->devfn;
654 acb = (struct AdapterControlBlock *) host->hostdata;
655 memset(acb,0,sizeof(struct AdapterControlBlock));
658 host->max_lun = ARCMSR_MAX_TARGETLUN;
659 host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
660 host->max_cmd_len = 16; /*this is issue of 64bit LBA ,over 2T byte*/
661 host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */
662 host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
663 host->this_id = ARCMSR_SCSI_INITIATOR_ID;
664 host->unique_id = (bus << 8) | dev_fun;
665 pci_set_drvdata(pdev, host);
666 pci_set_master(pdev);
667 error = pci_request_regions(pdev, "arcmsr");
669 goto scsi_host_release;
671 spin_lock_init(&acb->eh_lock);
672 spin_lock_init(&acb->ccblist_lock);
673 acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
674 ACB_F_MESSAGE_RQBUFFER_CLEARED |
675 ACB_F_MESSAGE_WQBUFFER_READED);
676 acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
677 INIT_LIST_HEAD(&acb->ccb_free_list);
678 arcmsr_define_adapter_type(acb);
679 error = arcmsr_remap_pciregion(acb);
681 goto pci_release_regs;
683 error = arcmsr_get_firmware_spec(acb);
685 goto unmap_pci_region;
687 error = arcmsr_alloc_ccb_pool(acb);
691 arcmsr_iop_init(acb);
692 error = scsi_add_host(host, &pdev->dev);
694 goto RAID_controller_stop;
696 error = request_irq(pdev->irq, arcmsr_do_interrupt, IRQF_SHARED, "arcmsr", acb);
698 goto scsi_host_remove;
700 host->irq = pdev->irq;
701 scsi_scan_host(host);
702 INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
703 atomic_set(&acb->rq_map_token, 16);
704 atomic_set(&acb->ante_token_value, 16);
705 acb->fw_flag = FW_NORMAL;
706 init_timer(&acb->eternal_timer);
707 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
708 acb->eternal_timer.data = (unsigned long) acb;
709 acb->eternal_timer.function = &arcmsr_request_device_map;
710 add_timer(&acb->eternal_timer);
711 if(arcmsr_alloc_sysfs_attr(acb))
716 scsi_remove_host(host);
717 RAID_controller_stop:
718 arcmsr_stop_adapter_bgrb(acb);
719 arcmsr_flush_adapter_cache(acb);
720 arcmsr_free_ccb_pool(acb);
722 arcmsr_free_hbb_mu(acb);
724 arcmsr_unmap_pciregion(acb);
726 pci_release_regions(pdev);
730 pci_disable_device(pdev);
734 static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
736 struct MessageUnit_A __iomem *reg = acb->pmuA;
737 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
738 if (!arcmsr_hba_wait_msgint_ready(acb)) {
740 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
741 , acb->host->host_no);
747 static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
749 struct MessageUnit_B *reg = acb->pmuB;
751 writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
752 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
754 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
755 , acb->host->host_no);
760 static uint8_t arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *pACB)
762 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
763 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
764 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
765 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
767 "arcmsr%d: wait 'abort all outstanding command' timeout \n"
768 , pACB->host->host_no);
773 static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
776 switch (acb->adapter_type) {
777 case ACB_ADAPTER_TYPE_A: {
778 rtnval = arcmsr_abort_hba_allcmd(acb);
782 case ACB_ADAPTER_TYPE_B: {
783 rtnval = arcmsr_abort_hbb_allcmd(acb);
787 case ACB_ADAPTER_TYPE_C: {
788 rtnval = arcmsr_abort_hbc_allcmd(acb);
794 static bool arcmsr_hbb_enable_driver_mode(struct AdapterControlBlock *pacb)
796 struct MessageUnit_B *reg = pacb->pmuB;
797 writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
798 if (!arcmsr_hbb_wait_msgint_ready(pacb)) {
799 printk(KERN_ERR "arcmsr%d: can't set driver mode. \n", pacb->host->host_no);
805 static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
807 struct scsi_cmnd *pcmd = ccb->pcmd;
809 scsi_dma_unmap(pcmd);
812 static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
814 struct AdapterControlBlock *acb = ccb->acb;
815 struct scsi_cmnd *pcmd = ccb->pcmd;
817 atomic_dec(&acb->ccboutstandingcount);
818 arcmsr_pci_unmap_dma(ccb);
819 ccb->startdone = ARCMSR_CCB_DONE;
820 spin_lock_irqsave(&acb->ccblist_lock, flags);
821 list_add_tail(&ccb->list, &acb->ccb_free_list);
822 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
823 pcmd->scsi_done(pcmd);
826 static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
829 struct scsi_cmnd *pcmd = ccb->pcmd;
830 struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
831 pcmd->result = DID_OK << 16;
833 int sense_data_length =
834 sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
835 ? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
836 memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
837 memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
838 sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
839 sensebuffer->Valid = 1;
843 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
846 switch (acb->adapter_type) {
847 case ACB_ADAPTER_TYPE_A : {
848 struct MessageUnit_A __iomem *reg = acb->pmuA;
849 orig_mask = readl(®->outbound_intmask);
850 writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
851 ®->outbound_intmask);
854 case ACB_ADAPTER_TYPE_B : {
855 struct MessageUnit_B *reg = acb->pmuB;
856 orig_mask = readl(reg->iop2drv_doorbell_mask);
857 writel(0, reg->iop2drv_doorbell_mask);
860 case ACB_ADAPTER_TYPE_C:{
861 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
862 /* disable all outbound interrupt */
863 orig_mask = readl(®->host_int_mask); /* disable outbound message0 int */
864 writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
871 static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
872 struct CommandControlBlock *ccb, bool error)
875 id = ccb->pcmd->device->id;
876 lun = ccb->pcmd->device->lun;
878 if (acb->devstate[id][lun] == ARECA_RAID_GONE)
879 acb->devstate[id][lun] = ARECA_RAID_GOOD;
880 ccb->pcmd->result = DID_OK << 16;
881 arcmsr_ccb_complete(ccb);
883 switch (ccb->arcmsr_cdb.DeviceStatus) {
884 case ARCMSR_DEV_SELECT_TIMEOUT: {
885 acb->devstate[id][lun] = ARECA_RAID_GONE;
886 ccb->pcmd->result = DID_NO_CONNECT << 16;
887 arcmsr_ccb_complete(ccb);
891 case ARCMSR_DEV_ABORTED:
893 case ARCMSR_DEV_INIT_FAIL: {
894 acb->devstate[id][lun] = ARECA_RAID_GONE;
895 ccb->pcmd->result = DID_BAD_TARGET << 16;
896 arcmsr_ccb_complete(ccb);
900 case ARCMSR_DEV_CHECK_CONDITION: {
901 acb->devstate[id][lun] = ARECA_RAID_GOOD;
902 arcmsr_report_sense_info(ccb);
903 arcmsr_ccb_complete(ccb);
909 "arcmsr%d: scsi id = %d lun = %d isr get command error done, \
910 but got unknown DeviceStatus = 0x%x \n"
914 , ccb->arcmsr_cdb.DeviceStatus);
915 acb->devstate[id][lun] = ARECA_RAID_GONE;
916 ccb->pcmd->result = DID_NO_CONNECT << 16;
917 arcmsr_ccb_complete(ccb);
923 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
927 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
928 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
929 struct scsi_cmnd *abortcmd = pCCB->pcmd;
931 id = abortcmd->device->id;
932 lun = abortcmd->device->lun;
933 abortcmd->result |= DID_ABORT << 16;
934 arcmsr_ccb_complete(pCCB);
935 printk(KERN_NOTICE "arcmsr%d: pCCB ='0x%p' isr got aborted command \n",
936 acb->host->host_no, pCCB);
940 printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \
942 "ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x"
943 " ccboutstandingcount = %d \n"
949 , atomic_read(&acb->ccboutstandingcount));
952 arcmsr_report_ccb_state(acb, pCCB, error);
955 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
959 struct ARCMSR_CDB *pARCMSR_CDB;
961 struct CommandControlBlock *pCCB;
962 switch (acb->adapter_type) {
964 case ACB_ADAPTER_TYPE_A: {
965 struct MessageUnit_A __iomem *reg = acb->pmuA;
966 uint32_t outbound_intstatus;
967 outbound_intstatus = readl(®->outbound_intstatus) &
968 acb->outbound_int_enable;
969 /*clear and abort all outbound posted Q*/
970 writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
971 while(((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF)
972 && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
973 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
974 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
975 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
976 arcmsr_drain_donequeue(acb, pCCB, error);
981 case ACB_ADAPTER_TYPE_B: {
982 struct MessageUnit_B *reg = acb->pmuB;
983 /*clear all outbound posted Q*/
984 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, ®->iop2drv_doorbell); /* clear doorbell interrupt */
985 for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
986 if ((flag_ccb = readl(®->done_qbuffer[i])) != 0) {
987 writel(0, ®->done_qbuffer[i]);
988 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
989 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
990 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
991 arcmsr_drain_donequeue(acb, pCCB, error);
993 reg->post_qbuffer[i] = 0;
995 reg->doneq_index = 0;
996 reg->postq_index = 0;
999 case ACB_ADAPTER_TYPE_C: {
1000 struct MessageUnit_C *reg = acb->pmuC;
1001 struct ARCMSR_CDB *pARCMSR_CDB;
1002 uint32_t flag_ccb, ccb_cdb_phy;
1004 struct CommandControlBlock *pCCB;
1005 while ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
1007 flag_ccb = readl(®->outbound_queueport_low);
1008 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
1009 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+ccb_cdb_phy);/*frame must be 32 bytes aligned*/
1010 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1011 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
1012 arcmsr_drain_donequeue(acb, pCCB, error);
1017 static void arcmsr_remove(struct pci_dev *pdev)
1019 struct Scsi_Host *host = pci_get_drvdata(pdev);
1020 struct AdapterControlBlock *acb =
1021 (struct AdapterControlBlock *) host->hostdata;
1023 arcmsr_free_sysfs_attr(acb);
1024 scsi_remove_host(host);
1025 flush_scheduled_work();
1026 del_timer_sync(&acb->eternal_timer);
1027 arcmsr_disable_outbound_ints(acb);
1028 arcmsr_stop_adapter_bgrb(acb);
1029 arcmsr_flush_adapter_cache(acb);
1030 acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
1031 acb->acb_flags &= ~ACB_F_IOP_INITED;
1033 for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD; poll_count++){
1034 if (!atomic_read(&acb->ccboutstandingcount))
1036 arcmsr_interrupt(acb);/* FIXME: need spinlock */
1040 if (atomic_read(&acb->ccboutstandingcount)) {
1043 arcmsr_abort_allcmd(acb);
1044 arcmsr_done4abort_postqueue(acb);
1045 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
1046 struct CommandControlBlock *ccb = acb->pccb_pool[i];
1047 if (ccb->startdone == ARCMSR_CCB_START) {
1048 ccb->startdone = ARCMSR_CCB_ABORTED;
1049 ccb->pcmd->result = DID_ABORT << 16;
1050 arcmsr_ccb_complete(ccb);
1054 free_irq(pdev->irq, acb);
1055 arcmsr_free_ccb_pool(acb);
1056 arcmsr_free_hbb_mu(acb);
1057 arcmsr_unmap_pciregion(acb);
1058 pci_release_regions(pdev);
1059 scsi_host_put(host);
1060 pci_disable_device(pdev);
1061 pci_set_drvdata(pdev, NULL);
1064 static void arcmsr_shutdown(struct pci_dev *pdev)
1066 struct Scsi_Host *host = pci_get_drvdata(pdev);
1067 struct AdapterControlBlock *acb =
1068 (struct AdapterControlBlock *)host->hostdata;
1069 del_timer_sync(&acb->eternal_timer);
1070 arcmsr_disable_outbound_ints(acb);
1071 flush_scheduled_work();
1072 arcmsr_stop_adapter_bgrb(acb);
1073 arcmsr_flush_adapter_cache(acb);
1076 static int arcmsr_module_init(void)
1079 error = pci_register_driver(&arcmsr_pci_driver);
1083 static void arcmsr_module_exit(void)
1085 pci_unregister_driver(&arcmsr_pci_driver);
1087 module_init(arcmsr_module_init);
1088 module_exit(arcmsr_module_exit);
1090 static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
1094 switch (acb->adapter_type) {
1096 case ACB_ADAPTER_TYPE_A: {
1097 struct MessageUnit_A __iomem *reg = acb->pmuA;
1098 mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
1099 ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
1100 ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
1101 writel(mask, ®->outbound_intmask);
1102 acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
1106 case ACB_ADAPTER_TYPE_B: {
1107 struct MessageUnit_B *reg = acb->pmuB;
1108 mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
1109 ARCMSR_IOP2DRV_DATA_READ_OK |
1110 ARCMSR_IOP2DRV_CDB_DONE |
1111 ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
1112 writel(mask, reg->iop2drv_doorbell_mask);
1113 acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
1116 case ACB_ADAPTER_TYPE_C: {
1117 struct MessageUnit_C *reg = acb->pmuC;
1118 mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
1119 writel(intmask_org & mask, ®->host_int_mask);
1120 acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
1125 static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
1126 struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
1128 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1129 int8_t *psge = (int8_t *)&arcmsr_cdb->u;
1130 __le32 address_lo, address_hi;
1131 int arccdbsize = 0x30;
1134 struct scatterlist *sg;
1137 memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
1138 arcmsr_cdb->TargetID = pcmd->device->id;
1139 arcmsr_cdb->LUN = pcmd->device->lun;
1140 arcmsr_cdb->Function = 1;
1141 arcmsr_cdb->Context = 0;
1142 memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
1144 nseg = scsi_dma_map(pcmd);
1145 if (unlikely(nseg > acb->host->sg_tablesize || nseg < 0))
1147 scsi_for_each_sg(pcmd, sg, nseg, i) {
1148 /* Get the physical address of the current data pointer */
1149 length = cpu_to_le32(sg_dma_len(sg));
1150 address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
1151 address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
1152 if (address_hi == 0) {
1153 struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1155 pdma_sg->address = address_lo;
1156 pdma_sg->length = length;
1157 psge += sizeof (struct SG32ENTRY);
1158 arccdbsize += sizeof (struct SG32ENTRY);
1160 struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1162 pdma_sg->addresshigh = address_hi;
1163 pdma_sg->address = address_lo;
1164 pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
1165 psge += sizeof (struct SG64ENTRY);
1166 arccdbsize += sizeof (struct SG64ENTRY);
1169 arcmsr_cdb->sgcount = (uint8_t)nseg;
1170 arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
1171 arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
1172 if ( arccdbsize > 256)
1173 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1174 if (pcmd->cmnd[0]|WRITE_6 || pcmd->cmnd[0]|WRITE_10 || pcmd->cmnd[0]|WRITE_12 ){
1175 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1177 ccb->arc_cdb_size = arccdbsize;
1181 static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
1183 uint32_t cdb_phyaddr_pattern = ccb->cdb_phyaddr_pattern;
1184 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1185 atomic_inc(&acb->ccboutstandingcount);
1186 ccb->startdone = ARCMSR_CCB_START;
1187 switch (acb->adapter_type) {
1188 case ACB_ADAPTER_TYPE_A: {
1189 struct MessageUnit_A __iomem *reg = acb->pmuA;
1191 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
1192 writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
1193 ®->inbound_queueport);
1195 writel(cdb_phyaddr_pattern, ®->inbound_queueport);
1200 case ACB_ADAPTER_TYPE_B: {
1201 struct MessageUnit_B *reg = acb->pmuB;
1202 uint32_t ending_index, index = reg->postq_index;
1204 ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
1205 writel(0, ®->post_qbuffer[ending_index]);
1206 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1207 writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\
1208 ®->post_qbuffer[index]);
1210 writel(cdb_phyaddr_pattern, ®->post_qbuffer[index]);
1213 index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
1214 reg->postq_index = index;
1215 writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
1218 case ACB_ADAPTER_TYPE_C: {
1219 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
1220 uint32_t ccb_post_stamp, arc_cdb_size;
1222 arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
1223 ccb_post_stamp = (cdb_phyaddr_pattern | ((arc_cdb_size - 1) >> 6) | 1);
1224 if (acb->cdb_phyaddr_hi32) {
1225 writel(acb->cdb_phyaddr_hi32, &phbcmu->inbound_queueport_high);
1226 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1228 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1234 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1236 struct MessageUnit_A __iomem *reg = acb->pmuA;
1237 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1238 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
1239 if (!arcmsr_hba_wait_msgint_ready(acb)) {
1241 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1242 , acb->host->host_no);
1246 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1248 struct MessageUnit_B *reg = acb->pmuB;
1249 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1250 writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);
1252 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
1254 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1255 , acb->host->host_no);
1259 static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *pACB)
1261 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
1262 pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
1263 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
1264 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
1265 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
1267 "arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
1268 , pACB->host->host_no);
1272 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1274 switch (acb->adapter_type) {
1275 case ACB_ADAPTER_TYPE_A: {
1276 arcmsr_stop_hba_bgrb(acb);
1280 case ACB_ADAPTER_TYPE_B: {
1281 arcmsr_stop_hbb_bgrb(acb);
1284 case ACB_ADAPTER_TYPE_C: {
1285 arcmsr_stop_hbc_bgrb(acb);
1290 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
1292 dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
1295 void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1297 switch (acb->adapter_type) {
1298 case ACB_ADAPTER_TYPE_A: {
1299 struct MessageUnit_A __iomem *reg = acb->pmuA;
1300 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
1304 case ACB_ADAPTER_TYPE_B: {
1305 struct MessageUnit_B *reg = acb->pmuB;
1306 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
1309 case ACB_ADAPTER_TYPE_C: {
1310 struct MessageUnit_C __iomem *reg = acb->pmuC;
1311 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
1316 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1318 switch (acb->adapter_type) {
1319 case ACB_ADAPTER_TYPE_A: {
1320 struct MessageUnit_A __iomem *reg = acb->pmuA;
1322 ** push inbound doorbell tell iop, driver data write ok
1323 ** and wait reply on next hwinterrupt for next Qbuffer post
1325 writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, ®->inbound_doorbell);
1329 case ACB_ADAPTER_TYPE_B: {
1330 struct MessageUnit_B *reg = acb->pmuB;
1332 ** push inbound doorbell tell iop, driver data write ok
1333 ** and wait reply on next hwinterrupt for next Qbuffer post
1335 writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
1338 case ACB_ADAPTER_TYPE_C: {
1339 struct MessageUnit_C __iomem *reg = acb->pmuC;
1341 ** push inbound doorbell tell iop, driver data write ok
1342 ** and wait reply on next hwinterrupt for next Qbuffer post
1344 writel(ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK, ®->inbound_doorbell);
1350 struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
1352 struct QBUFFER __iomem *qbuffer = NULL;
1353 switch (acb->adapter_type) {
1355 case ACB_ADAPTER_TYPE_A: {
1356 struct MessageUnit_A __iomem *reg = acb->pmuA;
1357 qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer;
1361 case ACB_ADAPTER_TYPE_B: {
1362 struct MessageUnit_B *reg = acb->pmuB;
1363 qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
1366 case ACB_ADAPTER_TYPE_C: {
1367 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
1368 qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
1374 static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb)
1376 struct QBUFFER __iomem *pqbuffer = NULL;
1377 switch (acb->adapter_type) {
1379 case ACB_ADAPTER_TYPE_A: {
1380 struct MessageUnit_A __iomem *reg = acb->pmuA;
1381 pqbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer;
1385 case ACB_ADAPTER_TYPE_B: {
1386 struct MessageUnit_B *reg = acb->pmuB;
1387 pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
1390 case ACB_ADAPTER_TYPE_C: {
1391 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
1392 pqbuffer = (struct QBUFFER __iomem *)®->message_wbuffer;
1399 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1401 struct QBUFFER __iomem *prbuffer;
1402 struct QBUFFER *pQbuffer;
1403 uint8_t __iomem *iop_data;
1404 int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
1405 rqbuf_lastindex = acb->rqbuf_lastindex;
1406 rqbuf_firstindex = acb->rqbuf_firstindex;
1407 prbuffer = arcmsr_get_iop_rqbuffer(acb);
1408 iop_data = (uint8_t __iomem *)prbuffer->data;
1409 iop_len = prbuffer->data_len;
1410 my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1) & (ARCMSR_MAX_QBUFFER - 1);
1412 if (my_empty_len >= iop_len)
1414 while (iop_len > 0) {
1415 pQbuffer = (struct QBUFFER *)&acb->rqbuffer[rqbuf_lastindex];
1416 memcpy(pQbuffer, iop_data, 1);
1418 rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1422 acb->rqbuf_lastindex = rqbuf_lastindex;
1423 arcmsr_iop_message_read(acb);
1427 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
1431 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1433 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
1434 if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
1436 struct QBUFFER __iomem *pwbuffer;
1437 uint8_t __iomem *iop_data;
1438 int32_t allxfer_len = 0;
1440 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
1441 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1442 iop_data = (uint8_t __iomem *)pwbuffer->data;
1444 while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) && \
1445 (allxfer_len < 124)) {
1446 pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
1447 memcpy(iop_data, pQbuffer, 1);
1448 acb->wqbuf_firstindex++;
1449 acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1453 pwbuffer->data_len = allxfer_len;
1455 arcmsr_iop_message_wrote(acb);
1458 if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
1459 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1463 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1465 uint32_t outbound_doorbell;
1466 struct MessageUnit_A __iomem *reg = acb->pmuA;
1467 outbound_doorbell = readl(®->outbound_doorbell);
1468 writel(outbound_doorbell, ®->outbound_doorbell);
1469 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1470 arcmsr_iop2drv_data_wrote_handle(acb);
1473 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1474 arcmsr_iop2drv_data_read_handle(acb);
1477 static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *pACB)
1479 uint32_t outbound_doorbell;
1480 struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
1482 *******************************************************************
1483 ** Maybe here we need to check wrqbuffer_lock is lock or not
1484 ** DOORBELL: din! don!
1485 ** check if there are any mail need to pack from firmware
1486 *******************************************************************
1488 outbound_doorbell = readl(®->outbound_doorbell);
1489 writel(outbound_doorbell, ®->outbound_doorbell_clear);/*clear interrupt*/
1490 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
1491 arcmsr_iop2drv_data_wrote_handle(pACB);
1493 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK) {
1494 arcmsr_iop2drv_data_read_handle(pACB);
1496 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
1497 arcmsr_hbc_message_isr(pACB); /* messenger of "driver to iop commands" */
1501 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
1504 struct MessageUnit_A __iomem *reg = acb->pmuA;
1505 struct ARCMSR_CDB *pARCMSR_CDB;
1506 struct CommandControlBlock *pCCB;
1508 while ((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) {
1509 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
1510 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1511 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1512 arcmsr_drain_donequeue(acb, pCCB, error);
1516 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
1520 struct MessageUnit_B *reg = acb->pmuB;
1521 struct ARCMSR_CDB *pARCMSR_CDB;
1522 struct CommandControlBlock *pCCB;
1524 index = reg->doneq_index;
1525 while ((flag_ccb = readl(®->done_qbuffer[index])) != 0) {
1526 writel(0, ®->done_qbuffer[index]);
1527 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
1528 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1529 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1530 arcmsr_drain_donequeue(acb, pCCB, error);
1532 index %= ARCMSR_MAX_HBB_POSTQUEUE;
1533 reg->doneq_index = index;
1537 static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
1539 struct MessageUnit_C *phbcmu;
1540 struct ARCMSR_CDB *arcmsr_cdb;
1541 struct CommandControlBlock *ccb;
1542 uint32_t flag_ccb, ccb_cdb_phy, throttling = 0;
1545 phbcmu = (struct MessageUnit_C *)acb->pmuC;
1546 /* areca cdb command done */
1547 /* Use correct offset and size for syncing */
1549 while (readl(&phbcmu->host_int_status) &
1550 ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR){
1551 /* check if command done with no error*/
1552 flag_ccb = readl(&phbcmu->outbound_queueport_low);
1553 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);/*frame must be 32 bytes aligned*/
1554 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
1555 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
1556 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
1557 /* check if command done with no error */
1558 arcmsr_drain_donequeue(acb, ccb, error);
1559 if (throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
1560 writel(ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING, &phbcmu->inbound_doorbell);
1567 **********************************************************************************
1568 ** Handle a message interrupt
1570 ** The only message interrupt we expect is in response to a query for the 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_hba_message_isr(struct AdapterControlBlock *acb)
1576 struct MessageUnit_A *reg = acb->pmuA;
1577 /*clear interrupt and message state*/
1578 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus);
1579 schedule_work(&acb->arcmsr_do_message_isr_bh);
1581 static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb)
1583 struct MessageUnit_B *reg = acb->pmuB;
1585 /*clear interrupt and message state*/
1586 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
1587 schedule_work(&acb->arcmsr_do_message_isr_bh);
1590 **********************************************************************************
1591 ** Handle a message interrupt
1593 ** The only message interrupt we expect is in response to a query for the
1594 ** current adapter config.
1595 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
1596 **********************************************************************************
1598 static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb)
1600 struct MessageUnit_C *reg = acb->pmuC;
1601 /*clear interrupt and message state*/
1602 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);
1603 schedule_work(&acb->arcmsr_do_message_isr_bh);
1606 static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
1608 uint32_t outbound_intstatus;
1609 struct MessageUnit_A __iomem *reg = acb->pmuA;
1610 outbound_intstatus = readl(®->outbound_intstatus) &
1611 acb->outbound_int_enable;
1612 if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) {
1615 writel(outbound_intstatus, ®->outbound_intstatus);
1616 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
1617 arcmsr_hba_doorbell_isr(acb);
1619 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
1620 arcmsr_hba_postqueue_isr(acb);
1622 if(outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
1623 /* messenger of "driver to iop commands" */
1624 arcmsr_hba_message_isr(acb);
1629 static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb)
1631 uint32_t outbound_doorbell;
1632 struct MessageUnit_B *reg = acb->pmuB;
1633 outbound_doorbell = readl(reg->iop2drv_doorbell) &
1634 acb->outbound_int_enable;
1635 if (!outbound_doorbell)
1638 writel(~outbound_doorbell, reg->iop2drv_doorbell);
1639 /*in case the last action of doorbell interrupt clearance is cached,
1640 this action can push HW to write down the clear bit*/
1641 readl(reg->iop2drv_doorbell);
1642 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
1643 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
1644 arcmsr_iop2drv_data_wrote_handle(acb);
1646 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
1647 arcmsr_iop2drv_data_read_handle(acb);
1649 if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
1650 arcmsr_hbb_postqueue_isr(acb);
1652 if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
1653 /* messenger of "driver to iop commands" */
1654 arcmsr_hbb_message_isr(acb);
1659 static int arcmsr_handle_hbc_isr(struct AdapterControlBlock *pACB)
1661 uint32_t host_interrupt_status;
1662 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
1664 *********************************************
1665 ** check outbound intstatus
1666 *********************************************
1668 host_interrupt_status = readl(&phbcmu->host_int_status);
1669 if (!host_interrupt_status) {
1670 /*it must be share irq*/
1673 /* MU ioctl transfer doorbell interrupts*/
1674 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR) {
1675 arcmsr_hbc_doorbell_isr(pACB); /* messenger of "ioctl message read write" */
1677 /* MU post queue interrupts*/
1678 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) {
1679 arcmsr_hbc_postqueue_isr(pACB); /* messenger of "scsi commands" */
1683 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
1685 switch (acb->adapter_type) {
1686 case ACB_ADAPTER_TYPE_A: {
1687 if (arcmsr_handle_hba_isr(acb)) {
1693 case ACB_ADAPTER_TYPE_B: {
1694 if (arcmsr_handle_hbb_isr(acb)) {
1699 case ACB_ADAPTER_TYPE_C: {
1700 if (arcmsr_handle_hbc_isr(acb)) {
1708 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
1711 /* stop adapter background rebuild */
1712 if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
1713 uint32_t intmask_org;
1714 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1715 intmask_org = arcmsr_disable_outbound_ints(acb);
1716 arcmsr_stop_adapter_bgrb(acb);
1717 arcmsr_flush_adapter_cache(acb);
1718 arcmsr_enable_outbound_ints(acb, intmask_org);
1723 void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb)
1725 int32_t wqbuf_firstindex, wqbuf_lastindex;
1727 struct QBUFFER __iomem *pwbuffer;
1728 uint8_t __iomem *iop_data;
1729 int32_t allxfer_len = 0;
1730 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
1731 iop_data = (uint8_t __iomem *)pwbuffer->data;
1732 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
1733 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
1734 wqbuf_firstindex = acb->wqbuf_firstindex;
1735 wqbuf_lastindex = acb->wqbuf_lastindex;
1736 while ((wqbuf_firstindex != wqbuf_lastindex) && (allxfer_len < 124)) {
1737 pQbuffer = &acb->wqbuffer[wqbuf_firstindex];
1738 memcpy(iop_data, pQbuffer, 1);
1740 wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1744 acb->wqbuf_firstindex = wqbuf_firstindex;
1745 pwbuffer->data_len = allxfer_len;
1746 arcmsr_iop_message_wrote(acb);
1750 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
1751 struct scsi_cmnd *cmd)
1753 struct CMD_MESSAGE_FIELD *pcmdmessagefld;
1754 int retvalue = 0, transfer_len = 0;
1756 struct scatterlist *sg;
1757 uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 |
1758 (uint32_t ) cmd->cmnd[6] << 16 |
1759 (uint32_t ) cmd->cmnd[7] << 8 |
1760 (uint32_t ) cmd->cmnd[8];
1761 /* 4 bytes: Areca io control code */
1762 sg = scsi_sglist(cmd);
1763 buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
1764 if (scsi_sg_count(cmd) > 1) {
1765 retvalue = ARCMSR_MESSAGE_FAIL;
1768 transfer_len += sg->length;
1770 if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
1771 retvalue = ARCMSR_MESSAGE_FAIL;
1774 pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
1775 switch(controlcode) {
1777 case ARCMSR_MESSAGE_READ_RQBUFFER: {
1778 unsigned char *ver_addr;
1779 uint8_t *pQbuffer, *ptmpQbuffer;
1780 int32_t allxfer_len = 0;
1782 ver_addr = kmalloc(1032, GFP_ATOMIC);
1784 retvalue = ARCMSR_MESSAGE_FAIL;
1788 ptmpQbuffer = ver_addr;
1789 while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
1790 && (allxfer_len < 1031)) {
1791 pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
1792 memcpy(ptmpQbuffer, pQbuffer, 1);
1793 acb->rqbuf_firstindex++;
1794 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1798 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1800 struct QBUFFER __iomem *prbuffer;
1801 uint8_t __iomem *iop_data;
1804 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1805 prbuffer = arcmsr_get_iop_rqbuffer(acb);
1806 iop_data = prbuffer->data;
1807 iop_len = readl(&prbuffer->data_len);
1808 while (iop_len > 0) {
1809 acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
1810 acb->rqbuf_lastindex++;
1811 acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1815 arcmsr_iop_message_read(acb);
1817 memcpy(pcmdmessagefld->messagedatabuffer, ver_addr, allxfer_len);
1818 pcmdmessagefld->cmdmessage.Length = allxfer_len;
1819 if(acb->fw_flag == FW_DEADLOCK) {
1820 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1822 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1828 case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
1829 unsigned char *ver_addr;
1830 int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
1831 uint8_t *pQbuffer, *ptmpuserbuffer;
1833 ver_addr = kmalloc(1032, GFP_ATOMIC);
1835 retvalue = ARCMSR_MESSAGE_FAIL;
1838 if(acb->fw_flag == FW_DEADLOCK) {
1839 pcmdmessagefld->cmdmessage.ReturnCode =
1840 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1842 pcmdmessagefld->cmdmessage.ReturnCode =
1843 ARCMSR_MESSAGE_RETURNCODE_OK;
1845 ptmpuserbuffer = ver_addr;
1846 user_len = pcmdmessagefld->cmdmessage.Length;
1847 memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len);
1848 wqbuf_lastindex = acb->wqbuf_lastindex;
1849 wqbuf_firstindex = acb->wqbuf_firstindex;
1850 if (wqbuf_lastindex != wqbuf_firstindex) {
1851 struct SENSE_DATA *sensebuffer =
1852 (struct SENSE_DATA *)cmd->sense_buffer;
1853 arcmsr_post_ioctldata2iop(acb);
1854 /* has error report sensedata */
1855 sensebuffer->ErrorCode = 0x70;
1856 sensebuffer->SenseKey = ILLEGAL_REQUEST;
1857 sensebuffer->AdditionalSenseLength = 0x0A;
1858 sensebuffer->AdditionalSenseCode = 0x20;
1859 sensebuffer->Valid = 1;
1860 retvalue = ARCMSR_MESSAGE_FAIL;
1862 my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
1863 &(ARCMSR_MAX_QBUFFER - 1);
1864 if (my_empty_len >= user_len) {
1865 while (user_len > 0) {
1867 &acb->wqbuffer[acb->wqbuf_lastindex];
1868 memcpy(pQbuffer, ptmpuserbuffer, 1);
1869 acb->wqbuf_lastindex++;
1870 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1874 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
1876 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
1877 arcmsr_post_ioctldata2iop(acb);
1880 /* has error report sensedata */
1881 struct SENSE_DATA *sensebuffer =
1882 (struct SENSE_DATA *)cmd->sense_buffer;
1883 sensebuffer->ErrorCode = 0x70;
1884 sensebuffer->SenseKey = ILLEGAL_REQUEST;
1885 sensebuffer->AdditionalSenseLength = 0x0A;
1886 sensebuffer->AdditionalSenseCode = 0x20;
1887 sensebuffer->Valid = 1;
1888 retvalue = ARCMSR_MESSAGE_FAIL;
1895 case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
1896 uint8_t *pQbuffer = acb->rqbuffer;
1897 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1898 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1899 arcmsr_iop_message_read(acb);
1901 acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
1902 acb->rqbuf_firstindex = 0;
1903 acb->rqbuf_lastindex = 0;
1904 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1905 if(acb->fw_flag == FW_DEADLOCK) {
1906 pcmdmessagefld->cmdmessage.ReturnCode =
1907 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1909 pcmdmessagefld->cmdmessage.ReturnCode =
1910 ARCMSR_MESSAGE_RETURNCODE_OK;
1915 case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
1916 uint8_t *pQbuffer = acb->wqbuffer;
1917 if(acb->fw_flag == FW_DEADLOCK) {
1918 pcmdmessagefld->cmdmessage.ReturnCode =
1919 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1921 pcmdmessagefld->cmdmessage.ReturnCode =
1922 ARCMSR_MESSAGE_RETURNCODE_OK;
1925 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1926 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1927 arcmsr_iop_message_read(acb);
1930 (ACB_F_MESSAGE_WQBUFFER_CLEARED |
1931 ACB_F_MESSAGE_WQBUFFER_READED);
1932 acb->wqbuf_firstindex = 0;
1933 acb->wqbuf_lastindex = 0;
1934 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1938 case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
1941 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1942 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1943 arcmsr_iop_message_read(acb);
1946 (ACB_F_MESSAGE_WQBUFFER_CLEARED
1947 | ACB_F_MESSAGE_RQBUFFER_CLEARED
1948 | ACB_F_MESSAGE_WQBUFFER_READED);
1949 acb->rqbuf_firstindex = 0;
1950 acb->rqbuf_lastindex = 0;
1951 acb->wqbuf_firstindex = 0;
1952 acb->wqbuf_lastindex = 0;
1953 pQbuffer = acb->rqbuffer;
1954 memset(pQbuffer, 0, sizeof(struct QBUFFER));
1955 pQbuffer = acb->wqbuffer;
1956 memset(pQbuffer, 0, sizeof(struct QBUFFER));
1957 if(acb->fw_flag == FW_DEADLOCK) {
1958 pcmdmessagefld->cmdmessage.ReturnCode =
1959 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1961 pcmdmessagefld->cmdmessage.ReturnCode =
1962 ARCMSR_MESSAGE_RETURNCODE_OK;
1967 case ARCMSR_MESSAGE_RETURN_CODE_3F: {
1968 if(acb->fw_flag == FW_DEADLOCK) {
1969 pcmdmessagefld->cmdmessage.ReturnCode =
1970 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1972 pcmdmessagefld->cmdmessage.ReturnCode =
1973 ARCMSR_MESSAGE_RETURNCODE_3F;
1977 case ARCMSR_MESSAGE_SAY_HELLO: {
1978 int8_t *hello_string = "Hello! I am ARCMSR";
1979 if(acb->fw_flag == FW_DEADLOCK) {
1980 pcmdmessagefld->cmdmessage.ReturnCode =
1981 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1983 pcmdmessagefld->cmdmessage.ReturnCode =
1984 ARCMSR_MESSAGE_RETURNCODE_OK;
1986 memcpy(pcmdmessagefld->messagedatabuffer, hello_string
1987 , (int16_t)strlen(hello_string));
1991 case ARCMSR_MESSAGE_SAY_GOODBYE:
1992 if(acb->fw_flag == FW_DEADLOCK) {
1993 pcmdmessagefld->cmdmessage.ReturnCode =
1994 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
1996 arcmsr_iop_parking(acb);
1999 case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
2000 if(acb->fw_flag == FW_DEADLOCK) {
2001 pcmdmessagefld->cmdmessage.ReturnCode =
2002 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2004 arcmsr_flush_adapter_cache(acb);
2008 retvalue = ARCMSR_MESSAGE_FAIL;
2011 sg = scsi_sglist(cmd);
2012 kunmap_atomic(buffer - sg->offset, KM_IRQ0);
2016 static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
2018 struct list_head *head = &acb->ccb_free_list;
2019 struct CommandControlBlock *ccb = NULL;
2020 unsigned long flags;
2021 spin_lock_irqsave(&acb->ccblist_lock, flags);
2022 if (!list_empty(head)) {
2023 ccb = list_entry(head->next, struct CommandControlBlock, list);
2024 list_del_init(&ccb->list);
2026 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2029 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
2033 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
2034 struct scsi_cmnd *cmd)
2036 switch (cmd->cmnd[0]) {
2038 unsigned char inqdata[36];
2040 struct scatterlist *sg;
2042 if (cmd->device->lun) {
2043 cmd->result = (DID_TIME_OUT << 16);
2044 cmd->scsi_done(cmd);
2047 inqdata[0] = TYPE_PROCESSOR;
2048 /* Periph Qualifier & Periph Dev Type */
2050 /* rem media bit & Dev Type Modifier */
2052 /* ISO, ECMA, & ANSI versions */
2054 /* length of additional data */
2055 strncpy(&inqdata[8], "Areca ", 8);
2056 /* Vendor Identification */
2057 strncpy(&inqdata[16], "RAID controller ", 16);
2058 /* Product Identification */
2059 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
2061 sg = scsi_sglist(cmd);
2062 buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
2064 memcpy(buffer, inqdata, sizeof(inqdata));
2065 sg = scsi_sglist(cmd);
2066 kunmap_atomic(buffer - sg->offset, KM_IRQ0);
2068 cmd->scsi_done(cmd);
2073 if (arcmsr_iop_message_xfer(acb, cmd))
2074 cmd->result = (DID_ERROR << 16);
2075 cmd->scsi_done(cmd);
2079 cmd->scsi_done(cmd);
2083 static int arcmsr_queue_command(struct scsi_cmnd *cmd,
2084 void (* done)(struct scsi_cmnd *))
2086 struct Scsi_Host *host = cmd->device->host;
2087 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
2088 struct CommandControlBlock *ccb;
2089 int target = cmd->device->id;
2090 int lun = cmd->device->lun;
2091 uint8_t scsicmd = cmd->cmnd[0];
2092 cmd->scsi_done = done;
2093 cmd->host_scribble = NULL;
2095 if ((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)){
2096 if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
2097 cmd->result = (DID_NO_CONNECT << 16);
2099 cmd->scsi_done(cmd);
2103 /* virtual device for iop message transfer */
2104 arcmsr_handle_virtual_command(acb, cmd);
2107 if (atomic_read(&acb->ccboutstandingcount) >=
2108 ARCMSR_MAX_OUTSTANDING_CMD)
2109 return SCSI_MLQUEUE_HOST_BUSY;
2110 if ((scsicmd == SCSI_CMD_ARECA_SPECIFIC)) {
2111 printk(KERN_NOTICE "Receiveing SCSI_CMD_ARECA_SPECIFIC command..\n");
2114 ccb = arcmsr_get_freeccb(acb);
2116 return SCSI_MLQUEUE_HOST_BUSY;
2117 if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
2118 cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
2119 cmd->scsi_done(cmd);
2122 arcmsr_post_ccb(acb, ccb);
2126 static bool arcmsr_get_hba_config(struct AdapterControlBlock *acb)
2128 struct MessageUnit_A __iomem *reg = acb->pmuA;
2129 char *acb_firm_model = acb->firm_model;
2130 char *acb_firm_version = acb->firm_version;
2131 char *acb_device_map = acb->device_map;
2132 char __iomem *iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]);
2133 char __iomem *iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]);
2134 char __iomem *iop_device_map = (char __iomem *)(®->message_rwbuffer[21]);
2136 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2137 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2138 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2139 miscellaneous data' timeout \n", acb->host->host_no);
2144 *acb_firm_model = readb(iop_firm_model);
2152 *acb_firm_version = readb(iop_firm_version);
2160 *acb_device_map = readb(iop_device_map);
2165 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2169 acb->signature = readl(®->message_rwbuffer[0]);
2170 acb->firm_request_len = readl(®->message_rwbuffer[1]);
2171 acb->firm_numbers_queue = readl(®->message_rwbuffer[2]);
2172 acb->firm_sdram_size = readl(®->message_rwbuffer[3]);
2173 acb->firm_hd_channels = readl(®->message_rwbuffer[4]);
2174 acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2177 static bool arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
2179 struct MessageUnit_B *reg = acb->pmuB;
2180 struct pci_dev *pdev = acb->pdev;
2182 dma_addr_t dma_coherent_handle;
2183 char *acb_firm_model = acb->firm_model;
2184 char *acb_firm_version = acb->firm_version;
2185 char *acb_device_map = acb->device_map;
2186 char __iomem *iop_firm_model;
2187 /*firm_model,15,60-67*/
2188 char __iomem *iop_firm_version;
2189 /*firm_version,17,68-83*/
2190 char __iomem *iop_device_map;
2191 /*firm_version,21,84-99*/
2193 dma_coherent = dma_alloc_coherent(&pdev->dev, sizeof(struct MessageUnit_B), &dma_coherent_handle, GFP_KERNEL);
2195 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error for hbb mu\n", acb->host->host_no);
2198 acb->dma_coherent_handle_hbb_mu = dma_coherent_handle;
2199 reg = (struct MessageUnit_B *)dma_coherent;
2201 reg->drv2iop_doorbell= (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL);
2202 reg->drv2iop_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL_MASK);
2203 reg->iop2drv_doorbell = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL);
2204 reg->iop2drv_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL_MASK);
2205 reg->message_wbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_WBUFFER);
2206 reg->message_rbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RBUFFER);
2207 reg->message_rwbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RWBUFFER);
2208 iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]); /*firm_model,15,60-67*/
2209 iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]); /*firm_version,17,68-83*/
2210 iop_device_map = (char __iomem *)(®->message_rwbuffer[21]); /*firm_version,21,84-99*/
2212 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
2213 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2214 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2215 miscellaneous data' timeout \n", acb->host->host_no);
2220 *acb_firm_model = readb(iop_firm_model);
2227 *acb_firm_version = readb(iop_firm_version);
2235 *acb_device_map = readb(iop_device_map);
2241 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2246 acb->signature = readl(®->message_rwbuffer[1]);
2247 /*firm_signature,1,00-03*/
2248 acb->firm_request_len = readl(®->message_rwbuffer[2]);
2249 /*firm_request_len,1,04-07*/
2250 acb->firm_numbers_queue = readl(®->message_rwbuffer[3]);
2251 /*firm_numbers_queue,2,08-11*/
2252 acb->firm_sdram_size = readl(®->message_rwbuffer[4]);
2253 /*firm_sdram_size,3,12-15*/
2254 acb->firm_hd_channels = readl(®->message_rwbuffer[5]);
2255 /*firm_ide_channels,4,16-19*/
2256 acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2257 /*firm_ide_channels,4,16-19*/
2261 static bool arcmsr_get_hbc_config(struct AdapterControlBlock *pACB)
2263 uint32_t intmask_org, Index, firmware_state = 0;
2264 struct MessageUnit_C *reg = pACB->pmuC;
2265 char *acb_firm_model = pACB->firm_model;
2266 char *acb_firm_version = pACB->firm_version;
2267 char *iop_firm_model = (char *)(®->msgcode_rwbuffer[15]); /*firm_model,15,60-67*/
2268 char *iop_firm_version = (char *)(®->msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
2270 /* disable all outbound interrupt */
2271 intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
2272 writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
2273 /* wait firmware ready */
2275 firmware_state = readl(®->outbound_msgaddr1);
2276 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
2277 /* post "get config" instruction */
2278 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2279 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2280 /* wait message ready */
2281 for (Index = 0; Index < 2000; Index++) {
2282 if (readl(®->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
2283 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);/*clear interrupt*/
2288 if (Index >= 2000) {
2289 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
2290 miscellaneous data' timeout \n", pACB->host->host_no);
2295 *acb_firm_model = readb(iop_firm_model);
2302 *acb_firm_version = readb(iop_firm_version);
2307 printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
2308 pACB->host->host_no,
2311 pACB->firm_request_len = readl(®->msgcode_rwbuffer[1]); /*firm_request_len,1,04-07*/
2312 pACB->firm_numbers_queue = readl(®->msgcode_rwbuffer[2]); /*firm_numbers_queue,2,08-11*/
2313 pACB->firm_sdram_size = readl(®->msgcode_rwbuffer[3]); /*firm_sdram_size,3,12-15*/
2314 pACB->firm_hd_channels = readl(®->msgcode_rwbuffer[4]); /*firm_ide_channels,4,16-19*/
2315 pACB->firm_cfg_version = readl(®->msgcode_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
2316 /*all interrupt service will be enable at arcmsr_iop_init*/
2319 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
2321 if (acb->adapter_type == ACB_ADAPTER_TYPE_A)
2322 return arcmsr_get_hba_config(acb);
2323 else if (acb->adapter_type == ACB_ADAPTER_TYPE_B)
2324 return arcmsr_get_hbb_config(acb);
2326 return arcmsr_get_hbc_config(acb);
2329 static int arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
2330 struct CommandControlBlock *poll_ccb)
2332 struct MessageUnit_A __iomem *reg = acb->pmuA;
2333 struct CommandControlBlock *ccb;
2334 struct ARCMSR_CDB *arcmsr_cdb;
2335 uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
2338 polling_hba_ccb_retry:
2340 outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable;
2341 writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
2343 if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) {
2349 if (poll_count > 100){
2353 goto polling_hba_ccb_retry;
2356 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
2357 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2358 poll_ccb_done = (ccb == poll_ccb) ? 1:0;
2359 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
2360 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
2361 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2362 " poll command abort successfully \n"
2363 , acb->host->host_no
2364 , ccb->pcmd->device->id
2365 , ccb->pcmd->device->lun
2367 ccb->pcmd->result = DID_ABORT << 16;
2368 arcmsr_ccb_complete(ccb);
2371 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2372 " command done ccb = '0x%p'"
2373 "ccboutstandingcount = %d \n"
2374 , acb->host->host_no
2376 , atomic_read(&acb->ccboutstandingcount));
2379 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2380 arcmsr_report_ccb_state(acb, ccb, error);
2385 static int arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb,
2386 struct CommandControlBlock *poll_ccb)
2388 struct MessageUnit_B *reg = acb->pmuB;
2389 struct ARCMSR_CDB *arcmsr_cdb;
2390 struct CommandControlBlock *ccb;
2391 uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
2394 polling_hbb_ccb_retry:
2396 /* clear doorbell interrupt */
2397 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2399 index = reg->doneq_index;
2400 if ((flag_ccb = readl(®->done_qbuffer[index])) == 0) {
2406 if (poll_count > 100){
2410 goto polling_hbb_ccb_retry;
2413 writel(0, ®->done_qbuffer[index]);
2415 /*if last index number set it to 0 */
2416 index %= ARCMSR_MAX_HBB_POSTQUEUE;
2417 reg->doneq_index = index;
2418 /* check if command done with no error*/
2419 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
2420 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2421 poll_ccb_done = (ccb == poll_ccb) ? 1:0;
2422 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
2423 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
2424 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2425 " poll command abort successfully \n"
2427 ,ccb->pcmd->device->id
2428 ,ccb->pcmd->device->lun
2430 ccb->pcmd->result = DID_ABORT << 16;
2431 arcmsr_ccb_complete(ccb);
2434 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2435 " command done ccb = '0x%p'"
2436 "ccboutstandingcount = %d \n"
2437 , acb->host->host_no
2439 , atomic_read(&acb->ccboutstandingcount));
2442 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2443 arcmsr_report_ccb_state(acb, ccb, error);
2448 static int arcmsr_polling_hbc_ccbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_ccb)
2450 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2451 uint32_t flag_ccb, ccb_cdb_phy;
2452 struct ARCMSR_CDB *arcmsr_cdb;
2454 struct CommandControlBlock *pCCB;
2455 uint32_t poll_ccb_done = 0, poll_count = 0;
2457 polling_hbc_ccb_retry:
2460 if ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) == 0) {
2461 if (poll_ccb_done) {
2466 if (poll_count > 100) {
2470 goto polling_hbc_ccb_retry;
2473 flag_ccb = readl(®->outbound_queueport_low);
2474 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
2475 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);/*frame must be 32 bytes aligned*/
2476 pCCB = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
2477 poll_ccb_done = (pCCB == poll_ccb) ? 1 : 0;
2478 /* check ifcommand done with no error*/
2479 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
2480 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
2481 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
2482 " poll command abort successfully \n"
2483 , acb->host->host_no
2484 , pCCB->pcmd->device->id
2485 , pCCB->pcmd->device->lun
2487 pCCB->pcmd->result = DID_ABORT << 16;
2488 arcmsr_ccb_complete(pCCB);
2491 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
2492 " command done ccb = '0x%p'"
2493 "ccboutstandingcount = %d \n"
2494 , acb->host->host_no
2496 , atomic_read(&acb->ccboutstandingcount));
2499 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
2500 arcmsr_report_ccb_state(acb, pCCB, error);
2504 static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
2505 struct CommandControlBlock *poll_ccb)
2508 switch (acb->adapter_type) {
2510 case ACB_ADAPTER_TYPE_A: {
2511 rtn = arcmsr_polling_hba_ccbdone(acb, poll_ccb);
2515 case ACB_ADAPTER_TYPE_B: {
2516 rtn = arcmsr_polling_hbb_ccbdone(acb, poll_ccb);
2519 case ACB_ADAPTER_TYPE_C: {
2520 rtn = arcmsr_polling_hbc_ccbdone(acb, poll_ccb);
2526 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
2528 uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
2529 dma_addr_t dma_coherent_handle;
2531 ********************************************************************
2532 ** here we need to tell iop 331 our freeccb.HighPart
2533 ** if freeccb.HighPart is not zero
2534 ********************************************************************
2536 dma_coherent_handle = acb->dma_coherent_handle;
2537 cdb_phyaddr = (uint32_t)(dma_coherent_handle);
2538 cdb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16);
2539 acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
2541 ***********************************************************************
2542 ** if adapter type B, set window of "post command Q"
2543 ***********************************************************************
2545 switch (acb->adapter_type) {
2547 case ACB_ADAPTER_TYPE_A: {
2548 if (cdb_phyaddr_hi32 != 0) {
2549 struct MessageUnit_A __iomem *reg = acb->pmuA;
2550 uint32_t intmask_org;
2551 intmask_org = arcmsr_disable_outbound_ints(acb);
2552 writel(ARCMSR_SIGNATURE_SET_CONFIG, \
2553 ®->message_rwbuffer[0]);
2554 writel(cdb_phyaddr_hi32, ®->message_rwbuffer[1]);
2555 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \
2556 ®->inbound_msgaddr0);
2557 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2558 printk(KERN_NOTICE "arcmsr%d: ""set ccb high \
2559 part physical address timeout\n",
2560 acb->host->host_no);
2563 arcmsr_enable_outbound_ints(acb, intmask_org);
2568 case ACB_ADAPTER_TYPE_B: {
2569 unsigned long post_queue_phyaddr;
2570 uint32_t __iomem *rwbuffer;
2572 struct MessageUnit_B *reg = acb->pmuB;
2573 uint32_t intmask_org;
2574 intmask_org = arcmsr_disable_outbound_ints(acb);
2575 reg->postq_index = 0;
2576 reg->doneq_index = 0;
2577 writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell);
2578 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2579 printk(KERN_NOTICE "arcmsr%d:can not set diver mode\n", \
2580 acb->host->host_no);
2583 post_queue_phyaddr = acb->dma_coherent_handle_hbb_mu;
2584 rwbuffer = reg->message_rwbuffer;
2585 /* driver "set config" signature */
2586 writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
2587 /* normal should be zero */
2588 writel(cdb_phyaddr_hi32, rwbuffer++);
2589 /* postQ size (256 + 8)*4 */
2590 writel(post_queue_phyaddr, rwbuffer++);
2591 /* doneQ size (256 + 8)*4 */
2592 writel(post_queue_phyaddr + 1056, rwbuffer++);
2593 /* ccb maxQ size must be --> [(256 + 8)*4]*/
2594 writel(1056, rwbuffer);
2596 writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
2597 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2598 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
2599 timeout \n",acb->host->host_no);
2602 arcmsr_hbb_enable_driver_mode(acb);
2603 arcmsr_enable_outbound_ints(acb, intmask_org);
2606 case ACB_ADAPTER_TYPE_C: {
2607 if (cdb_phyaddr_hi32 != 0) {
2608 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2610 if (cdb_phyaddr_hi32 != 0) {
2611 unsigned char Retries = 0x00;
2613 printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x \n", acb->adapter_index, cdb_phyaddr_hi32);
2614 } while (Retries++ < 100);
2616 writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
2617 writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[1]);
2618 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
2619 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2620 if (!arcmsr_hbc_wait_msgint_ready(acb)) {
2621 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
2622 timeout \n", acb->host->host_no);
2631 static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
2633 uint32_t firmware_state = 0;
2634 switch (acb->adapter_type) {
2636 case ACB_ADAPTER_TYPE_A: {
2637 struct MessageUnit_A __iomem *reg = acb->pmuA;
2639 firmware_state = readl(®->outbound_msgaddr1);
2640 } while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0);
2644 case ACB_ADAPTER_TYPE_B: {
2645 struct MessageUnit_B *reg = acb->pmuB;
2647 firmware_state = readl(reg->iop2drv_doorbell);
2648 } while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0);
2649 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
2652 case ACB_ADAPTER_TYPE_C: {
2653 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2655 firmware_state = readl(®->outbound_msgaddr1);
2656 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
2661 static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb)
2663 struct MessageUnit_A __iomem *reg = acb->pmuA;
2664 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
2667 acb->fw_flag = FW_NORMAL;
2668 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)){
2669 atomic_set(&acb->rq_map_token, 16);
2671 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2672 if (atomic_dec_and_test(&acb->rq_map_token))
2674 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2675 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2680 static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb)
2682 struct MessageUnit_B __iomem *reg = acb->pmuB;
2683 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
2686 acb->fw_flag = FW_NORMAL;
2687 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
2688 atomic_set(&acb->rq_map_token,16);
2690 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2691 if(atomic_dec_and_test(&acb->rq_map_token))
2693 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
2694 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2699 static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb)
2701 struct MessageUnit_C __iomem *reg = acb->pmuC;
2702 if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
2705 acb->fw_flag = FW_NORMAL;
2706 if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
2707 atomic_set(&acb->rq_map_token, 16);
2709 atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
2710 if (atomic_dec_and_test(&acb->rq_map_token))
2712 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
2713 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
2714 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
2719 static void arcmsr_request_device_map(unsigned long pacb)
2721 struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb;
2722 switch (acb->adapter_type) {
2723 case ACB_ADAPTER_TYPE_A: {
2724 arcmsr_request_hba_device_map(acb);
2727 case ACB_ADAPTER_TYPE_B: {
2728 arcmsr_request_hbb_device_map(acb);
2731 case ACB_ADAPTER_TYPE_C: {
2732 arcmsr_request_hbc_device_map(acb);
2737 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
2739 struct MessageUnit_A __iomem *reg = acb->pmuA;
2740 acb->acb_flags |= ACB_F_MSG_START_BGRB;
2741 writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0);
2742 if (!arcmsr_hba_wait_msgint_ready(acb)) {
2743 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2744 rebulid' timeout \n", acb->host->host_no);
2748 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
2750 struct MessageUnit_B *reg = acb->pmuB;
2751 acb->acb_flags |= ACB_F_MSG_START_BGRB;
2752 writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
2753 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2754 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2755 rebulid' timeout \n",acb->host->host_no);
2759 static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *pACB)
2761 struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
2762 pACB->acb_flags |= ACB_F_MSG_START_BGRB;
2763 writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
2764 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
2765 if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
2766 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
2767 rebulid' timeout \n", pACB->host->host_no);
2771 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
2773 switch (acb->adapter_type) {
2774 case ACB_ADAPTER_TYPE_A:
2775 arcmsr_start_hba_bgrb(acb);
2777 case ACB_ADAPTER_TYPE_B:
2778 arcmsr_start_hbb_bgrb(acb);
2780 case ACB_ADAPTER_TYPE_C:
2781 arcmsr_start_hbc_bgrb(acb);
2785 static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
2787 switch (acb->adapter_type) {
2788 case ACB_ADAPTER_TYPE_A: {
2789 struct MessageUnit_A __iomem *reg = acb->pmuA;
2790 uint32_t outbound_doorbell;
2791 /* empty doorbell Qbuffer if door bell ringed */
2792 outbound_doorbell = readl(®->outbound_doorbell);
2793 /*clear doorbell interrupt */
2794 writel(outbound_doorbell, ®->outbound_doorbell);
2795 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
2799 case ACB_ADAPTER_TYPE_B: {
2800 struct MessageUnit_B *reg = acb->pmuB;
2801 /*clear interrupt and message state*/
2802 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2803 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
2804 /* let IOP know data has been read */
2807 case ACB_ADAPTER_TYPE_C: {
2808 struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
2809 uint32_t outbound_doorbell;
2810 /* empty doorbell Qbuffer if door bell ringed */
2811 outbound_doorbell = readl(®->outbound_doorbell);
2812 writel(outbound_doorbell, ®->outbound_doorbell_clear);
2813 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
2818 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
2820 switch (acb->adapter_type) {
2821 case ACB_ADAPTER_TYPE_A:
2823 case ACB_ADAPTER_TYPE_B:
2825 struct MessageUnit_B *reg = acb->pmuB;
2826 writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
2827 if (!arcmsr_hbb_wait_msgint_ready(acb)) {
2828 printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
2833 case ACB_ADAPTER_TYPE_C:
2839 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
2843 struct MessageUnit_A __iomem *pmuA = acb->pmuA;
2844 struct MessageUnit_C __iomem *pmuC = acb->pmuC;
2846 /* backup pci config data */
2847 printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no);
2848 for (i = 0; i < 64; i++) {
2849 pci_read_config_byte(acb->pdev, i, &value[i]);
2851 /* hardware reset signal */
2852 if ((acb->dev_id == 0x1680)) {
2853 writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
2854 } else if ((acb->dev_id == 0x1880)) {
2857 writel(0xF, &pmuC->write_sequence);
2858 writel(0x4, &pmuC->write_sequence);
2859 writel(0xB, &pmuC->write_sequence);
2860 writel(0x2, &pmuC->write_sequence);
2861 writel(0x7, &pmuC->write_sequence);
2862 writel(0xD, &pmuC->write_sequence);
2863 } while ((((temp = readl(&pmuC->host_diagnostic)) | ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
2864 writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
2866 pci_write_config_byte(acb->pdev, 0x84, 0x20);
2869 /* write back pci config data */
2870 for (i = 0; i < 64; i++) {
2871 pci_write_config_byte(acb->pdev, i, value[i]);
2876 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
2878 uint32_t intmask_org;
2879 /* disable all outbound interrupt */
2880 intmask_org = arcmsr_disable_outbound_ints(acb);
2881 arcmsr_wait_firmware_ready(acb);
2882 arcmsr_iop_confirm(acb);
2883 /*start background rebuild*/
2884 arcmsr_start_adapter_bgrb(acb);
2885 /* empty doorbell Qbuffer if door bell ringed */
2886 arcmsr_clear_doorbell_queue_buffer(acb);
2887 arcmsr_enable_eoi_mode(acb);
2888 /* enable outbound Post Queue,outbound doorbell Interrupt */
2889 arcmsr_enable_outbound_ints(acb, intmask_org);
2890 acb->acb_flags |= ACB_F_IOP_INITED;
2893 static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
2895 struct CommandControlBlock *ccb;
2896 uint32_t intmask_org;
2897 uint8_t rtnval = 0x00;
2899 if (atomic_read(&acb->ccboutstandingcount) != 0) {
2900 /* disable all outbound interrupt */
2901 intmask_org = arcmsr_disable_outbound_ints(acb);
2902 /* talk to iop 331 outstanding command aborted */
2903 rtnval = arcmsr_abort_allcmd(acb);
2904 /* clear all outbound posted Q */
2905 arcmsr_done4abort_postqueue(acb);
2906 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
2907 ccb = acb->pccb_pool[i];
2908 if (ccb->startdone == ARCMSR_CCB_START) {
2909 arcmsr_ccb_complete(ccb);
2912 atomic_set(&acb->ccboutstandingcount, 0);
2913 /* enable all outbound interrupt */
2914 arcmsr_enable_outbound_ints(acb, intmask_org);
2920 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
2922 struct AdapterControlBlock *acb =
2923 (struct AdapterControlBlock *)cmd->device->host->hostdata;
2924 uint32_t intmask_org, outbound_doorbell;
2925 int retry_count = 0;
2927 acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
2928 printk(KERN_ERR "arcmsr: executing bus reset eh.....num_resets = %d, num_aborts = %d \n", acb->num_resets, acb->num_aborts);
2931 switch(acb->adapter_type){
2932 case ACB_ADAPTER_TYPE_A:{
2933 if (acb->acb_flags & ACB_F_BUS_RESET){
2935 printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
2936 timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
2941 acb->acb_flags |= ACB_F_BUS_RESET;
2942 if (!arcmsr_iop_reset(acb)) {
2943 struct MessageUnit_A __iomem *reg;
2945 arcmsr_hardware_reset(acb);
2946 acb->acb_flags &= ~ACB_F_IOP_INITED;
2948 arcmsr_sleep_for_bus_reset(cmd);
2949 if ((readl(®->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
2950 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d \n", acb->host->host_no, retry_count);
2951 if (retry_count > retrycount) {
2952 acb->fw_flag = FW_DEADLOCK;
2953 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!! \n", acb->host->host_no);
2959 acb->acb_flags |= ACB_F_IOP_INITED;
2960 /* disable all outbound interrupt */
2961 intmask_org = arcmsr_disable_outbound_ints(acb);
2962 arcmsr_get_firmware_spec(acb);
2963 arcmsr_start_adapter_bgrb(acb);
2964 /* clear Qbuffer if door bell ringed */
2965 outbound_doorbell = readl(®->outbound_doorbell);
2966 writel(outbound_doorbell, ®->outbound_doorbell); /*clear interrupt */
2967 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
2968 /* enable outbound Post Queue,outbound doorbell Interrupt */
2969 arcmsr_enable_outbound_ints(acb, intmask_org);
2970 atomic_set(&acb->rq_map_token, 16);
2971 atomic_set(&acb->ante_token_value, 16);
2972 acb->fw_flag = FW_NORMAL;
2973 init_timer(&acb->eternal_timer);
2974 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
2975 acb->eternal_timer.data = (unsigned long) acb;
2976 acb->eternal_timer.function = &arcmsr_request_device_map;
2977 add_timer(&acb->eternal_timer);
2978 acb->acb_flags &= ~ACB_F_BUS_RESET;
2980 printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
2982 acb->acb_flags &= ~ACB_F_BUS_RESET;
2983 if (atomic_read(&acb->rq_map_token) == 0) {
2984 atomic_set(&acb->rq_map_token, 16);
2985 atomic_set(&acb->ante_token_value, 16);
2986 acb->fw_flag = FW_NORMAL;
2987 init_timer(&acb->eternal_timer);
2988 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
2989 acb->eternal_timer.data = (unsigned long) acb;
2990 acb->eternal_timer.function = &arcmsr_request_device_map;
2991 add_timer(&acb->eternal_timer);
2993 atomic_set(&acb->rq_map_token, 16);
2994 atomic_set(&acb->ante_token_value, 16);
2995 acb->fw_flag = FW_NORMAL;
2996 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
3002 case ACB_ADAPTER_TYPE_B:{
3003 acb->acb_flags |= ACB_F_BUS_RESET;
3004 if (!arcmsr_iop_reset(acb)) {
3005 acb->acb_flags &= ~ACB_F_BUS_RESET;
3008 acb->acb_flags &= ~ACB_F_BUS_RESET;
3009 if (atomic_read(&acb->rq_map_token) == 0) {
3010 atomic_set(&acb->rq_map_token, 16);
3011 atomic_set(&acb->ante_token_value, 16);
3012 acb->fw_flag = FW_NORMAL;
3013 init_timer(&acb->eternal_timer);
3014 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
3015 acb->eternal_timer.data = (unsigned long) acb;
3016 acb->eternal_timer.function = &arcmsr_request_device_map;
3017 add_timer(&acb->eternal_timer);
3019 atomic_set(&acb->rq_map_token, 16);
3020 atomic_set(&acb->ante_token_value, 16);
3021 acb->fw_flag = FW_NORMAL;
3022 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
3028 case ACB_ADAPTER_TYPE_C:{
3029 if (acb->acb_flags & ACB_F_BUS_RESET) {
3031 printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
3032 timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
3037 acb->acb_flags |= ACB_F_BUS_RESET;
3038 if (!arcmsr_iop_reset(acb)) {
3039 struct MessageUnit_C __iomem *reg;
3041 arcmsr_hardware_reset(acb);
3042 acb->acb_flags &= ~ACB_F_IOP_INITED;
3044 arcmsr_sleep_for_bus_reset(cmd);
3045 if ((readl(®->host_diagnostic) & 0x04) != 0) {
3046 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d \n", acb->host->host_no, retry_count);
3047 if (retry_count > retrycount) {
3048 acb->fw_flag = FW_DEADLOCK;
3049 printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!! \n", acb->host->host_no);
3055 acb->acb_flags |= ACB_F_IOP_INITED;
3056 /* disable all outbound interrupt */
3057 intmask_org = arcmsr_disable_outbound_ints(acb);
3058 arcmsr_get_firmware_spec(acb);
3059 arcmsr_start_adapter_bgrb(acb);
3060 /* clear Qbuffer if door bell ringed */
3061 outbound_doorbell = readl(®->outbound_doorbell);
3062 writel(outbound_doorbell, ®->outbound_doorbell_clear); /*clear interrupt */
3063 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
3064 /* enable outbound Post Queue,outbound doorbell Interrupt */
3065 arcmsr_enable_outbound_ints(acb, intmask_org);
3066 atomic_set(&acb->rq_map_token, 16);
3067 atomic_set(&acb->ante_token_value, 16);
3068 acb->fw_flag = FW_NORMAL;
3069 init_timer(&acb->eternal_timer);
3070 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
3071 acb->eternal_timer.data = (unsigned long) acb;
3072 acb->eternal_timer.function = &arcmsr_request_device_map;
3073 add_timer(&acb->eternal_timer);
3074 acb->acb_flags &= ~ACB_F_BUS_RESET;
3076 printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
3078 acb->acb_flags &= ~ACB_F_BUS_RESET;
3079 if (atomic_read(&acb->rq_map_token) == 0) {
3080 atomic_set(&acb->rq_map_token, 16);
3081 atomic_set(&acb->ante_token_value, 16);
3082 acb->fw_flag = FW_NORMAL;
3083 init_timer(&acb->eternal_timer);
3084 acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
3085 acb->eternal_timer.data = (unsigned long) acb;
3086 acb->eternal_timer.function = &arcmsr_request_device_map;
3087 add_timer(&acb->eternal_timer);
3089 atomic_set(&acb->rq_map_token, 16);
3090 atomic_set(&acb->ante_token_value, 16);
3091 acb->fw_flag = FW_NORMAL;
3092 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
3102 static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
3103 struct CommandControlBlock *ccb)
3106 rtn = arcmsr_polling_ccbdone(acb, ccb);
3110 static int arcmsr_abort(struct scsi_cmnd *cmd)
3112 struct AdapterControlBlock *acb =
3113 (struct AdapterControlBlock *)cmd->device->host->hostdata;
3117 "arcmsr%d: abort device command of scsi id = %d lun = %d \n",
3118 acb->host->host_no, cmd->device->id, cmd->device->lun);
3119 acb->acb_flags |= ACB_F_ABORT;
3122 ************************************************
3123 ** the all interrupt service routine is locked
3124 ** we need to handle it as soon as possible and exit
3125 ************************************************
3127 if (!atomic_read(&acb->ccboutstandingcount))
3130 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
3131 struct CommandControlBlock *ccb = acb->pccb_pool[i];
3132 if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
3133 ccb->startdone = ARCMSR_CCB_ABORTED;
3134 rtn = arcmsr_abort_one_cmd(acb, ccb);
3138 acb->acb_flags &= ~ACB_F_ABORT;
3142 static const char *arcmsr_info(struct Scsi_Host *host)
3144 struct AdapterControlBlock *acb =
3145 (struct AdapterControlBlock *) host->hostdata;
3146 static char buf[256];
3149 switch (acb->pdev->device) {
3150 case PCI_DEVICE_ID_ARECA_1110:
3151 case PCI_DEVICE_ID_ARECA_1200:
3152 case PCI_DEVICE_ID_ARECA_1202:
3153 case PCI_DEVICE_ID_ARECA_1210:
3156 case PCI_DEVICE_ID_ARECA_1120:
3157 case PCI_DEVICE_ID_ARECA_1130:
3158 case PCI_DEVICE_ID_ARECA_1160:
3159 case PCI_DEVICE_ID_ARECA_1170:
3160 case PCI_DEVICE_ID_ARECA_1201:
3161 case PCI_DEVICE_ID_ARECA_1220:
3162 case PCI_DEVICE_ID_ARECA_1230:
3163 case PCI_DEVICE_ID_ARECA_1260:
3164 case PCI_DEVICE_ID_ARECA_1270:
3165 case PCI_DEVICE_ID_ARECA_1280:
3168 case PCI_DEVICE_ID_ARECA_1380:
3169 case PCI_DEVICE_ID_ARECA_1381:
3170 case PCI_DEVICE_ID_ARECA_1680:
3171 case PCI_DEVICE_ID_ARECA_1681:
3172 case PCI_DEVICE_ID_ARECA_1880:
3179 sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
3180 type, raid6 ? "( RAID6 capable)" : "",
3181 ARCMSR_DRIVER_VERSION);