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Date: Thu, 6 Jan 2011 17:32:41 +0800
From: "NickCheng" <nick.cheng@...ca.com.tw>
To: <James.Bottomley@...e.de>,
"'Andrew Morton'" <akpm@...ux-foundation.org>
Cc: "'LKML'" <linux-kernel@...r.kernel.org>,
<linux-scsi@...r.kernel.org>
Subject: Fix the issue of system hangup after commands timeout on ARC-1200(Type_B controller)
Fix the issue of system hangup after commands timeout on ARC-1200
Signed-off-by: Nick Cheng <nick.cheng@...ca.com.tw>
---
diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index 475c31a..77b26f5 100644
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -2,7 +2,7 @@
****************************************************************************
***
** O.S : Linux
** FILE NAME : arcmsr.h
-** BY : Erich Chen
+** BY : Nick Cheng
** Description: SCSI RAID Device Driver for
** ARECA RAID Host adapter
****************************************************************************
***
@@ -46,8 +46,12 @@
struct device_attribute;
/*The limit of outstanding scsi command that firmware can handle*/
#define ARCMSR_MAX_OUTSTANDING_CMD
256
-#define ARCMSR_MAX_FREECCB_NUM
320
-#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15
2010/02/02"
+#ifdef CONFIG_XEN
+ #define ARCMSR_MAX_FREECCB_NUM 160
+#else
+ #define ARCMSR_MAX_FREECCB_NUM 320
+#endif
+#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15
2010/08/05"
#define ARCMSR_SCSI_INITIATOR_ID
255
#define ARCMSR_MAX_XFER_SECTORS
512
#define ARCMSR_MAX_XFER_SECTORS_B
4096
@@ -60,7 +64,6 @@ struct device_attribute;
#define ARCMSR_MAX_HBB_POSTQUEUE
264
#define ARCMSR_MAX_XFER_LEN
0x26000 /* 152K */
#define ARCMSR_CDB_SG_PAGE_LENGTH
256
-#define SCSI_CMD_ARECA_SPECIFIC
0xE1
#ifndef PCI_DEVICE_ID_ARECA_1880
#define PCI_DEVICE_ID_ARECA_1880 0x1880
#endif
diff --git a/drivers/scsi/arcmsr/arcmsr_attr.c
b/drivers/scsi/arcmsr/arcmsr_attr.c
index a4e04c5..acdae33 100644
--- a/drivers/scsi/arcmsr/arcmsr_attr.c
+++ b/drivers/scsi/arcmsr/arcmsr_attr.c
@@ -2,7 +2,7 @@
****************************************************************************
***
** O.S : Linux
** FILE NAME : arcmsr_attr.c
-** BY : Erich Chen
+** BY : Nick Cheng
** Description: attributes exported to sysfs and device host
****************************************************************************
***
** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights
reserved
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c
b/drivers/scsi/arcmsr/arcmsr_hba.c
index 17e3df4..c650310 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -2,7 +2,7 @@
****************************************************************************
***
** O.S : Linux
** FILE NAME : arcmsr_hba.c
-** BY : Erich Chen
+** BY : Nick Cheng
** Description: SCSI RAID Device Driver for
** ARECA RAID Host adapter
****************************************************************************
***
@@ -76,7 +76,7 @@ MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880)
SATA/SAS RAID Host Bus Adapte
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
static int sleeptime = 10;
-static int retrycount = 30;
+static int retrycount = 12;
wait_queue_head_t wait_q;
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd);
@@ -187,7 +187,6 @@ int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd)
if (isleep > 0) {
msleep(isleep*1000);
}
- printk(KERN_NOTICE "wake-up\n");
return 0;
}
@@ -921,7 +920,6 @@ static void arcmsr_report_ccb_state(struct
AdapterControlBlock *acb,
}
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)) {
@@ -948,7 +946,7 @@ static void arcmsr_drain_donequeue(struct
AdapterControlBlock *acb, struct Comma
, pCCB->startdone
, atomic_read(&acb->ccboutstandingcount));
return;
- }
+ }
arcmsr_report_ccb_state(acb, pCCB, error);
}
@@ -981,7 +979,7 @@ static void arcmsr_done4abort_postqueue(struct
AdapterControlBlock *acb)
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]);
@@ -1171,7 +1169,7 @@ static int arcmsr_build_ccb(struct AdapterControlBlock
*acb,
arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 :
0);
if ( arccdbsize > 256)
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
- if (pcmd->cmnd[0]|WRITE_6 || pcmd->cmnd[0]|WRITE_10 ||
pcmd->cmnd[0]|WRITE_12 ){
+ if (pcmd->sc_data_direction == DMA_TO_DEVICE) {
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
}
ccb->arc_cdb_size = arccdbsize;
@@ -1512,7 +1510,6 @@ static void arcmsr_hba_postqueue_isr(struct
AdapterControlBlock *acb)
arcmsr_drain_donequeue(acb, pCCB, error);
}
}
-
static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
{
uint32_t index;
@@ -2107,10 +2104,6 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd
*cmd,
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;
@@ -2394,6 +2387,7 @@ static int arcmsr_polling_hbb_ccbdone(struct
AdapterControlBlock *acb,
int index, rtn;
bool error;
polling_hbb_ccb_retry:
+
poll_count++;
/* clear doorbell interrupt */
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
@@ -2664,6 +2658,7 @@ static void arcmsr_request_hba_device_map(struct
AdapterControlBlock *acb)
{
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;
@@ -2671,8 +2666,10 @@ static void arcmsr_request_hba_device_map(struct
AdapterControlBlock *acb)
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));
}
@@ -2683,15 +2680,18 @@ static void arcmsr_request_hbb_device_map(struct
AdapterControlBlock *acb)
{
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));
}
@@ -2702,6 +2702,7 @@ static void arcmsr_request_hbc_device_map(struct
AdapterControlBlock *acb)
{
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;
@@ -2709,8 +2710,10 @@ static void arcmsr_request_hbc_device_map(struct
AdapterControlBlock *acb)
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));
@@ -2898,6 +2901,8 @@ static uint8_t arcmsr_iop_reset(struct
AdapterControlBlock *acb)
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);
@@ -2908,7 +2913,12 @@ static uint8_t arcmsr_iop_reset(struct
AdapterControlBlock *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);
@@ -2921,8 +2931,7 @@ static uint8_t arcmsr_iop_reset(struct
AdapterControlBlock *acb)
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;
@@ -2972,31 +2981,16 @@ sleep_again:
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;
@@ -3008,21 +3002,10 @@ sleep_again:
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;
@@ -3068,31 +3051,16 @@ sleep:
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;
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