*******************************************************************************
** O.S : Linux
** FILE NAME : arcmsr_hba.c
-** BY : Erich Chen
+** BY : Nick Cheng
** Description: SCSI RAID Device Driver for
** ARECA RAID Host adapter
*******************************************************************************
MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880) SATA/SAS RAID Host Bus Adapter");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
-static int sleeptime = 10;
-static int retrycount = 30;
+
+#define ARCMSR_SLEEPTIME 10
+#define ARCMSR_RETRYCOUNT 12
+
wait_queue_head_t wait_q;
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd);
****************************************************************************
****************************************************************************
*/
-int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd)
-{
- struct Scsi_Host *shost = NULL;
- int i, isleep;
- shost = cmd->device->host;
- isleep = sleeptime / 10;
- if (isleep > 0) {
- for (i = 0; i < isleep; i++) {
- msleep(10000);
- }
- }
-
- isleep = sleeptime % 10;
- if (isleep > 0) {
- msleep(isleep*1000);
- }
- printk(KERN_NOTICE "wake-up\n");
- return 0;
-}
static void arcmsr_free_hbb_mu(struct AdapterControlBlock *acb)
{
default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
}
-}
+}
static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
- uint32_t Index;
- uint8_t Retries = 0x00;
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(®->outbound_intstatus) &
- ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
- writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
- ®->outbound_intstatus);
- return true;
- }
- msleep(10);
- }/*max 1 seconds*/
+ int i;
+
+ for (i = 0; i < 2000; i++) {
+ if (readl(®->outbound_intstatus) &
+ ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
+ writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
+ ®->outbound_intstatus);
+ return true;
+ }
+ msleep(10);
+ } /* max 20 seconds */
- } while (Retries++ < 20);/*max 20 sec*/
return false;
}
static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
- uint32_t Index;
- uint8_t Retries = 0x00;
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(reg->iop2drv_doorbell)
- & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
- writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN
- , reg->iop2drv_doorbell);
- writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
- return true;
- }
- msleep(10);
- }/*max 1 seconds*/
+ int i;
+
+ for (i = 0; i < 2000; i++) {
+ if (readl(reg->iop2drv_doorbell)
+ & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
+ writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
+ reg->iop2drv_doorbell);
+ writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
+ reg->drv2iop_doorbell);
+ return true;
+ }
+ msleep(10);
+ } /* max 20 seconds */
- } while (Retries++ < 20);/*max 20 sec*/
return false;
}
static uint8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
- unsigned char Retries = 0x00;
- uint32_t Index;
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(&phbcmu->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
- writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &phbcmu->outbound_doorbell_clear);/*clear interrupt*/
- return true;
- }
- /* one us delay */
- msleep(10);
- } /*max 1 seconds*/
- } while (Retries++ < 20); /*max 20 sec*/
+ int i;
+
+ for (i = 0; i < 2000; i++) {
+ if (readl(&phbcmu->outbound_doorbell)
+ & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
+ writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
+ &phbcmu->outbound_doorbell_clear); /*clear interrupt*/
+ return true;
+ }
+ msleep(10);
+ } /* max 20 seconds */
+
return false;
}
+
static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
struct CommandControlBlock *ccb_tmp;
int i = 0, j = 0;
dma_addr_t cdb_phyaddr;
- unsigned long roundup_ccbsize = 0, offset;
+ unsigned long roundup_ccbsize;
unsigned long max_xfer_len;
unsigned long max_sg_entrys;
uint32_t firm_config_version;
+
for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
acb->devstate[i][j] = ARECA_RAID_GONE;
firm_config_version = acb->firm_cfg_version;
if((firm_config_version & 0xFF) >= 3){
max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
- max_sg_entrys = (max_xfer_len/4096);
+ max_sg_entrys = (max_xfer_len/4096);
}
acb->host->max_sectors = max_xfer_len/512;
acb->host->sg_tablesize = max_sg_entrys;
roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
- acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM + 32;
+ acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM;
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
if(!dma_coherent){
- printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error \n", acb->host->host_no);
+ printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
return -ENOMEM;
}
acb->dma_coherent = dma_coherent;
acb->dma_coherent_handle = dma_coherent_handle;
memset(dma_coherent, 0, acb->uncache_size);
- offset = roundup((unsigned long)dma_coherent, 32) - (unsigned long)dma_coherent;
- dma_coherent_handle = dma_coherent_handle + offset;
- dma_coherent = (struct CommandControlBlock *)dma_coherent + offset;
ccb_tmp = dma_coherent;
acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
}
static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
-
{
int id, lun;
if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
, pCCB->startdone
, atomic_read(&acb->ccboutstandingcount));
return;
- }
+ }
arcmsr_report_ccb_state(acb, pCCB, error);
}
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
/*clear all outbound posted Q*/
- writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, ®->iop2drv_doorbell); /* clear doorbell interrupt */
+ writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
if ((flag_ccb = readl(®->done_qbuffer[i])) != 0) {
writel(0, ®->done_qbuffer[i]);
int poll_count = 0;
arcmsr_free_sysfs_attr(acb);
scsi_remove_host(host);
- flush_scheduled_work();
+ flush_work_sync(&acb->arcmsr_do_message_isr_bh);
del_timer_sync(&acb->eternal_timer);
arcmsr_disable_outbound_ints(acb);
arcmsr_stop_adapter_bgrb(acb);
(struct AdapterControlBlock *)host->hostdata;
del_timer_sync(&acb->eternal_timer);
arcmsr_disable_outbound_ints(acb);
- flush_scheduled_work();
+ flush_work_sync(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
}
arcmsr_drain_donequeue(acb, pCCB, error);
}
}
-
static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
{
uint32_t index;
if (atomic_read(&acb->ccboutstandingcount) >=
ARCMSR_MAX_OUTSTANDING_CMD)
return SCSI_MLQUEUE_HOST_BUSY;
- if ((scsicmd == SCSI_CMD_ARECA_SPECIFIC)) {
- printk(KERN_NOTICE "Receiveing SCSI_CMD_ARECA_SPECIFIC command..\n");
- return 0;
- }
ccb = arcmsr_get_freeccb(acb);
if (!ccb)
return SCSI_MLQUEUE_HOST_BUSY;
int index, rtn;
bool error;
polling_hbb_ccb_retry:
+
poll_count++;
/* clear doorbell interrupt */
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
if (cdb_phyaddr_hi32 != 0) {
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
- if (cdb_phyaddr_hi32 != 0) {
- unsigned char Retries = 0x00;
- do {
- printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x \n", acb->adapter_index, cdb_phyaddr_hi32);
- } while (Retries++ < 100);
- }
+ printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
+ acb->adapter_index, cdb_phyaddr_hi32);
writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
} else {
acb->fw_flag = FW_NORMAL;
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
- if (atomic_dec_and_test(&acb->rq_map_token))
+ if (atomic_dec_and_test(&acb->rq_map_token)) {
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
+ }
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
{
struct MessageUnit_B __iomem *reg = acb->pmuB;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
- atomic_set(&acb->rq_map_token,16);
+ atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
- if(atomic_dec_and_test(&acb->rq_map_token))
+ if (atomic_dec_and_test(&acb->rq_map_token)) {
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
+ }
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
{
struct MessageUnit_C __iomem *reg = acb->pmuC;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
} else {
acb->fw_flag = FW_NORMAL;
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
- if (atomic_dec_and_test(&acb->rq_map_token))
+ if (atomic_dec_and_test(&acb->rq_map_token)) {
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
+ }
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
uint32_t intmask_org;
uint8_t rtnval = 0x00;
int i = 0;
+ unsigned long flags;
+
if (atomic_read(&acb->ccboutstandingcount) != 0) {
/* disable all outbound interrupt */
intmask_org = arcmsr_disable_outbound_ints(acb);
for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START) {
- arcmsr_ccb_complete(ccb);
+ scsi_dma_unmap(ccb->pcmd);
+ ccb->startdone = ARCMSR_CCB_DONE;
+ ccb->ccb_flags = 0;
+ spin_lock_irqsave(&acb->ccblist_lock, flags);
+ list_add_tail(&ccb->list, &acb->ccb_free_list);
+ spin_unlock_irqrestore(&acb->ccblist_lock, flags);
}
}
atomic_set(&acb->ccboutstandingcount, 0);
static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
{
- struct AdapterControlBlock *acb =
- (struct AdapterControlBlock *)cmd->device->host->hostdata;
+ struct AdapterControlBlock *acb;
uint32_t intmask_org, outbound_doorbell;
int retry_count = 0;
int rtn = FAILED;
arcmsr_hardware_reset(acb);
acb->acb_flags &= ~ACB_F_IOP_INITED;
sleep_again:
- arcmsr_sleep_for_bus_reset(cmd);
+ ssleep(ARCMSR_SLEEPTIME);
if ((readl(®->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d \n", acb->host->host_no, retry_count);
- if (retry_count > retrycount) {
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
+ if (retry_count > ARCMSR_RETRYCOUNT) {
acb->fw_flag = FW_DEADLOCK;
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!! \n", acb->host->host_no);
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
return FAILED;
}
retry_count++;
atomic_set(&acb->rq_map_token, 16);
atomic_set(&acb->ante_token_value, 16);
acb->fw_flag = FW_NORMAL;
- init_timer(&acb->eternal_timer);
- acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
- acb->eternal_timer.data = (unsigned long) acb;
- acb->eternal_timer.function = &arcmsr_request_device_map;
- add_timer(&acb->eternal_timer);
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
acb->acb_flags &= ~ACB_F_BUS_RESET;
rtn = SUCCESS;
printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
} else {
acb->acb_flags &= ~ACB_F_BUS_RESET;
- if (atomic_read(&acb->rq_map_token) == 0) {
- atomic_set(&acb->rq_map_token, 16);
- atomic_set(&acb->ante_token_value, 16);
- acb->fw_flag = FW_NORMAL;
- init_timer(&acb->eternal_timer);
- acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
- acb->eternal_timer.data = (unsigned long) acb;
- acb->eternal_timer.function = &arcmsr_request_device_map;
- add_timer(&acb->eternal_timer);
- } else {
- atomic_set(&acb->rq_map_token, 16);
- atomic_set(&acb->ante_token_value, 16);
- acb->fw_flag = FW_NORMAL;
- mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
- }
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value, 16);
+ acb->fw_flag = FW_NORMAL;
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
rtn = SUCCESS;
}
break;
rtn = FAILED;
} else {
acb->acb_flags &= ~ACB_F_BUS_RESET;
- if (atomic_read(&acb->rq_map_token) == 0) {
- atomic_set(&acb->rq_map_token, 16);
- atomic_set(&acb->ante_token_value, 16);
- acb->fw_flag = FW_NORMAL;
- init_timer(&acb->eternal_timer);
- acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
- acb->eternal_timer.data = (unsigned long) acb;
- acb->eternal_timer.function = &arcmsr_request_device_map;
- add_timer(&acb->eternal_timer);
- } else {
- atomic_set(&acb->rq_map_token, 16);
- atomic_set(&acb->ante_token_value, 16);
- acb->fw_flag = FW_NORMAL;
- mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
- }
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value, 16);
+ acb->fw_flag = FW_NORMAL;
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
rtn = SUCCESS;
}
break;
arcmsr_hardware_reset(acb);
acb->acb_flags &= ~ACB_F_IOP_INITED;
sleep:
- arcmsr_sleep_for_bus_reset(cmd);
+ ssleep(ARCMSR_SLEEPTIME);
if ((readl(®->host_diagnostic) & 0x04) != 0) {
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d \n", acb->host->host_no, retry_count);
- if (retry_count > retrycount) {
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
+ if (retry_count > ARCMSR_RETRYCOUNT) {
acb->fw_flag = FW_DEADLOCK;
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!! \n", acb->host->host_no);
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
return FAILED;
}
retry_count++;
atomic_set(&acb->rq_map_token, 16);
atomic_set(&acb->ante_token_value, 16);
acb->fw_flag = FW_NORMAL;
- init_timer(&acb->eternal_timer);
- acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
- acb->eternal_timer.data = (unsigned long) acb;
- acb->eternal_timer.function = &arcmsr_request_device_map;
- add_timer(&acb->eternal_timer);
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
acb->acb_flags &= ~ACB_F_BUS_RESET;
rtn = SUCCESS;
printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
} else {
acb->acb_flags &= ~ACB_F_BUS_RESET;
- if (atomic_read(&acb->rq_map_token) == 0) {
- atomic_set(&acb->rq_map_token, 16);
- atomic_set(&acb->ante_token_value, 16);
- acb->fw_flag = FW_NORMAL;
- init_timer(&acb->eternal_timer);
- acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6*HZ);
- acb->eternal_timer.data = (unsigned long) acb;
- acb->eternal_timer.function = &arcmsr_request_device_map;
- add_timer(&acb->eternal_timer);
- } else {
- atomic_set(&acb->rq_map_token, 16);
- atomic_set(&acb->ante_token_value, 16);
- acb->fw_flag = FW_NORMAL;
- mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
- }
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value, 16);
+ acb->fw_flag = FW_NORMAL;
+ mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
rtn = SUCCESS;
}
break;
git.openpandora.org / pandora-kernel.git / blobdiff