Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a1f6e0211b71a6c3ff401ad1d345ab024d0c6f01
Commit: a1f6e0211b71a6c3ff401ad1d345ab024d0c6f01
Parent: 727eead62e22cf0a9498cf34e075c08269402978
Author: nickcheng(鄭守謙 <[EMAIL PROTECTED]>
AuthorDate: Fri Jun 15 11:43:32 2007 +0800
Committer: James Bottomley <[EMAIL PROTECTED]>
CommitDate: Sun Jun 17 14:49:01 2007 -0500
[SCSI] areca: improve driver stability and compatibility
Description:
1. Implement PCI-Express error recovery function and AER
capability, especially thanks to Yanmin Zhang's openhanded help
about AER
2. Implement the selection of ARCMSR_MAX_XFER_SECTORS_B=4096 if
firmware version is latter than 1.42
3. Add arcmsr_done4_abort_postqueue in arcmsr_iop_reset function
to improve the stability as hot-unplug/plug
4. Modify the ISR, arcmsr_interrupt routine, to prevent the
inconsistency with sg_mod driver if application directly calls
the arcmsr driver w/o passing through scsi midlayer
Signed-off-by: Nick Cheng <[EMAIL PROTECTED]>
[jejb: unused variable removal]
Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
---
drivers/scsi/arcmsr/arcmsr.h | 4 +-
drivers/scsi/arcmsr/arcmsr_hba.c | 456 +++++++++++++++++++++++++++++++++++---
2 files changed, 425 insertions(+), 35 deletions(-)
diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index aff96db..f0b8bf4 100644
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -48,9 +48,10 @@ struct class_device_attribute;
#define ARCMSR_MAX_OUTSTANDING_CMD
256
#define ARCMSR_MAX_FREECCB_NUM
288
-#define ARCMSR_DRIVER_VERSION "Driver Version
1.20.00.13"
+#define ARCMSR_DRIVER_VERSION "Driver Version
1.20.00.14"
#define ARCMSR_SCSI_INITIATOR_ID
255
#define ARCMSR_MAX_XFER_SECTORS
512
+#define ARCMSR_MAX_XFER_SECTORS_B
4096
#define ARCMSR_MAX_TARGETID
17
#define ARCMSR_MAX_TARGETLUN
8
#define ARCMSR_MAX_CMD_PERLUN
ARCMSR_MAX_OUTSTANDING_CMD
@@ -469,4 +470,3 @@ extern void arcmsr_post_Qbuffer(struct AdapterControlBlock
*acb);
extern struct class_device_attribute *arcmsr_host_attrs[];
extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb);
void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);
-
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 672df79..0ddfc21 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -57,6 +57,7 @@
#include <linux/dma-mapping.h>
#include <linux/timer.h>
#include <linux/pci.h>
+#include <linux/aer.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/system.h>
@@ -71,7 +72,7 @@
#include "arcmsr.h"
MODULE_AUTHOR("Erich Chen <[EMAIL PROTECTED]>");
-MODULE_DESCRIPTION("ARECA (ARC11xx/12xx) SATA RAID HOST Adapter");
+MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID HOST
Adapter");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
@@ -93,7 +94,9 @@ static void arcmsr_flush_adapter_cache(struct
AdapterControlBlock *acb);
static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb);
static const char *arcmsr_info(struct Scsi_Host *);
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
-
+static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state);
+static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev);
static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int
queue_depth)
{
if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
@@ -104,7 +107,8 @@ static int arcmsr_adjust_disk_queue_depth(struct
scsi_device *sdev, int queue_de
static struct scsi_host_template arcmsr_scsi_host_template = {
.module = THIS_MODULE,
- .name = "ARCMSR ARECA SATA RAID HOST Adapter"
ARCMSR_DRIVER_VERSION,
+ .name = "ARCMSR ARECA SATA/SAS RAID HOST Adapter"
+ ARCMSR_DRIVER_VERSION,
.info = arcmsr_info,
.queuecommand = arcmsr_queue_command,
.eh_abort_handler = arcmsr_abort,
@@ -119,6 +123,10 @@ static struct scsi_host_template arcmsr_scsi_host_template
= {
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = arcmsr_host_attrs,
};
+static struct pci_error_handlers arcmsr_pci_error_handlers = {
+ .error_detected = arcmsr_pci_error_detected,
+ .slot_reset = arcmsr_pci_slot_reset,
+};
static struct pci_device_id arcmsr_device_id_table[] = {
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
@@ -144,7 +152,8 @@ static struct pci_driver arcmsr_pci_driver = {
.id_table = arcmsr_device_id_table,
.probe = arcmsr_probe,
.remove = arcmsr_remove,
- .shutdown = arcmsr_shutdown
+ .shutdown = arcmsr_shutdown,
+ .err_handler = &arcmsr_pci_error_handlers,
};
static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
@@ -328,6 +337,8 @@ static int arcmsr_probe(struct pci_dev *pdev,
arcmsr_iop_init(acb);
pci_set_drvdata(pdev, host);
+ if (strncmp(acb->firm_version, "V1.42", 5) >= 0)
+ host->max_sectors= ARCMSR_MAX_XFER_SECTORS_B;
error = scsi_add_host(host, &pdev->dev);
if (error)
@@ -338,6 +349,7 @@ static int arcmsr_probe(struct pci_dev *pdev,
goto out_free_sysfs;
scsi_scan_host(host);
+ pci_enable_pcie_error_reporting(pdev);
return 0;
out_free_sysfs:
out_free_irq:
@@ -488,7 +500,7 @@ static void arcmsr_enable_outbound_ints(struct
AdapterControlBlock *acb,
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
{
- struct MessageUnit __iomem *reg=acb->pmu;
+ struct MessageUnit __iomem *reg = acb->pmu;
writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
if (arcmsr_wait_msgint_ready(acb))
@@ -718,7 +730,7 @@ static irqreturn_t arcmsr_interrupt(struct
AdapterControlBlock *acb)
int id, lun;
/*
****************************************************************
- ** areca cdb command done
+ ** areca cdb command done
****************************************************************
*/
while (1) {
@@ -729,20 +741,20 @@ static irqreturn_t arcmsr_interrupt(struct
AdapterControlBlock *acb)
(flag_ccb << 5));
if ((ccb->acb != acb) || (ccb->startdone !=
ARCMSR_CCB_START)) {
if (ccb->startdone == ARCMSR_CCB_ABORTED) {
- struct scsi_cmnd *abortcmd=ccb->pcmd;
+ struct scsi_cmnd *abortcmd = ccb->pcmd;
if (abortcmd) {
abortcmd->result |= DID_ABORT >> 16;
arcmsr_ccb_complete(ccb, 1);
printk(KERN_NOTICE
- "arcmsr%d: ccb='0x%p' isr got
aborted command \n"
+ "arcmsr%d: ccb ='0x%p' isr got
aborted command \n"
, acb->host->host_no, ccb);
}
continue;
}
printk(KERN_NOTICE
- "arcmsr%d: isr get an illegal ccb
command done acb='0x%p'"
- "ccb='0x%p' ccbacb='0x%p' startdone =
0x%x"
- " ccboutstandingcount=%d \n"
+ "arcmsr%d: isr get an illegal ccb
command done acb = '0x%p'"
+ "ccb = '0x%p' ccbacb = '0x%p' startdone
= 0x%x"
+ " ccboutstandingcount = %d \n"
, acb->host->host_no
, acb
, ccb
@@ -762,7 +774,7 @@ static irqreturn_t arcmsr_interrupt(struct
AdapterControlBlock *acb)
switch(ccb->arcmsr_cdb.DeviceStatus) {
case ARCMSR_DEV_SELECT_TIMEOUT: {
acb->devstate[id][lun] =
ARECA_RAID_GONE;
- ccb->pcmd->result =
DID_TIME_OUT << 16;
+ ccb->pcmd->result =
DID_NO_CONNECT << 16;
arcmsr_ccb_complete(ccb, 1);
}
break;
@@ -781,8 +793,8 @@ static irqreturn_t arcmsr_interrupt(struct
AdapterControlBlock *acb)
break;
default:
printk(KERN_NOTICE
- "arcmsr%d: scsi id=%d lun=%d"
- " isr get command error done,"
+ "arcmsr%d: scsi id = %d lun =
%d"
+ " isr get command error done, "
"but got unknown DeviceStatus =
0x%x \n"
, acb->host->host_no
, id
@@ -1062,7 +1074,7 @@ static void arcmsr_handle_virtual_command(struct
AdapterControlBlock *acb,
inqdata[1] = 0;
/* rem media bit & Dev Type Modifier */
inqdata[2] = 0;
- /* ISO,ECMA,& ANSI versions */
+ /* ISO, ECMA, & ANSI versions */
inqdata[4] = 31;
/* length of additional data */
strncpy(&inqdata[8], "Areca ", 8);
@@ -1112,7 +1124,7 @@ static int arcmsr_queue_command(struct scsi_cmnd *cmd,
, acb->host->host_no);
return SCSI_MLQUEUE_HOST_BUSY;
}
- if(target == 16) {
+ if (target == 16) {
/* virtual device for iop message transfer */
arcmsr_handle_virtual_command(acb, cmd);
return 0;
@@ -1125,7 +1137,7 @@ static int arcmsr_queue_command(struct scsi_cmnd *cmd,
printk(KERN_NOTICE
"arcmsr%d: block 'read/write'"
"command with gone raid volume"
- " Cmd=%2x, TargetId=%d, Lun=%d \n"
+ " Cmd = %2x, TargetId = %d, Lun = %d \n"
, acb->host->host_no
, cmd->cmnd[0]
, target, lun);
@@ -1216,7 +1228,7 @@ static void arcmsr_polling_ccbdone(struct
AdapterControlBlock *acb,
if ((ccb->startdone == ARCMSR_CCB_ABORTED) ||
(ccb == poll_ccb)) {
printk(KERN_NOTICE
- "arcmsr%d: scsi id=%d lun=%d ccb='0x%p'"
+ "arcmsr%d: scsi id = %d lun = %d ccb =
'0x%p'"
" poll command abort successfully \n"
, acb->host->host_no
, ccb->pcmd->device->id
@@ -1229,8 +1241,8 @@ static void arcmsr_polling_ccbdone(struct
AdapterControlBlock *acb,
}
printk(KERN_NOTICE
"arcmsr%d: polling get an illegal ccb"
- " command done ccb='0x%p'"
- "ccboutstandingcount=%d \n"
+ " command done ccb ='0x%p'"
+ "ccboutstandingcount = %d \n"
, acb->host->host_no
, ccb
, atomic_read(&acb->ccboutstandingcount));
@@ -1247,7 +1259,7 @@ static void arcmsr_polling_ccbdone(struct
AdapterControlBlock *acb,
switch(ccb->arcmsr_cdb.DeviceStatus) {
case ARCMSR_DEV_SELECT_TIMEOUT: {
acb->devstate[id][lun] =
ARECA_RAID_GONE;
- ccb->pcmd->result = DID_TIME_OUT << 16;
+ ccb->pcmd->result = DID_NO_CONNECT <<
16;
arcmsr_ccb_complete(ccb, 1);
}
break;
@@ -1266,7 +1278,7 @@ static void arcmsr_polling_ccbdone(struct
AdapterControlBlock *acb,
break;
default:
printk(KERN_NOTICE
- "arcmsr%d: scsi id=%d lun=%d"
+ "arcmsr%d: scsi id = %d lun = %d"
" polling and getting command error
done"
"but got unknown DeviceStatus = 0x%x \n"
, acb->host->host_no
@@ -1281,6 +1293,94 @@ static void arcmsr_polling_ccbdone(struct
AdapterControlBlock *acb,
}
}
}
+static void arcmsr_done4_abort_postqueue(struct AdapterControlBlock *acb)
+{
+ int i = 0, found = 0;
+ int id, lun;
+ uint32_t flag_ccb, outbound_intstatus;
+ struct MessageUnit __iomem *reg = acb->pmu;
+ struct CommandControlBlock *ccb;
+ /*clear and abort all outbound posted Q*/
+
+ while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) &&
+(i++ < 256)){
+ ccb = (struct CommandControlBlock *)(acb->vir2phy_offset +
+(flag_ccb << 5));
+ if (ccb){
+ if ((ccb->acb != acb)||(ccb->startdone != \
+ARCMSR_CCB_START)){
+ printk(KERN_NOTICE "arcmsr%d: polling get \
+an illegal ccb" "command done ccb = '0x%p'""ccboutstandingcount = %d \n",
+ acb->host->host_no, ccb,
+ atomic_read(&acb->ccboutstandingcount));
+ continue;
+ }
+
+ id = ccb->pcmd->device->id;
+ lun = ccb->pcmd->device->lun;
+ if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)){
+ if (acb->devstate[id][lun] == ARECA_RAID_GONE)
+ acb->devstate[id][lun] =
ARECA_RAID_GOOD;
+ ccb->pcmd->result = DID_OK << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ else {
+ switch(ccb->arcmsr_cdb.DeviceStatus) {
+ case ARCMSR_DEV_SELECT_TIMEOUT: {
+ acb->devstate[id][lun] =
ARECA_RAID_GONE;
+ ccb->pcmd->result =
DID_NO_CONNECT << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ case ARCMSR_DEV_ABORTED:
+
+ case ARCMSR_DEV_INIT_FAIL: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_BAD_TARGET << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ case ARCMSR_DEV_CHECK_CONDITION: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GOOD;
+ arcmsr_report_sense_info(ccb);
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ default:
+ printk(KERN_NOTICE
+ "arcmsr%d: scsi id = %d \
+ lun = %d""polling and \
+ getting command error \
+ done""but got unknown \
+ DeviceStatus = 0x%x \n",
+ acb->host->host_no, id,
+ lun, ccb->arcmsr_cdb.DeviceStatus);
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_BAD_TARGET << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ break;
+ }
+ }
+ found = 1;
+ }
+ }
+ if (found){
+ outbound_intstatus = readl(®->outbound_intstatus) & \
+ acb->outbound_int_enable;
+ writel(outbound_intstatus, ®->outbound_intstatus);
+ /*clear interrupt*/
+ }
+ return;
+}
+
static void arcmsr_iop_init(struct AdapterControlBlock *acb)
{
@@ -1314,7 +1414,6 @@ static void arcmsr_iop_init(struct AdapterControlBlock
*acb)
static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
{
- struct MessageUnit __iomem *reg = acb->pmu;
struct CommandControlBlock *ccb;
uint32_t intmask_org;
int i = 0;
@@ -1327,21 +1426,17 @@ static void arcmsr_iop_reset(struct AdapterControlBlock
*acb)
/* disable all outbound interrupt */
intmask_org = arcmsr_disable_outbound_ints(acb);
/* clear all outbound posted Q */
- for (i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++)
- readl(®->outbound_queueport);
+ arcmsr_done4_abort_postqueue(acb);
for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
ccb = acb->pccb_pool[i];
- if ((ccb->startdone == ARCMSR_CCB_START) ||
- (ccb->startdone == ARCMSR_CCB_ABORTED)) {
+ if (ccb->startdone == ARCMSR_CCB_START) {
ccb->startdone = ARCMSR_CCB_ABORTED;
- ccb->pcmd->result = DID_ABORT << 16;
- arcmsr_ccb_complete(ccb, 1);
}
}
/* enable all outbound interrupt */
arcmsr_enable_outbound_ints(acb, intmask_org);
}
- atomic_set(&acb->ccboutstandingcount, 0);
+
}
static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
@@ -1387,10 +1482,9 @@ static int arcmsr_abort(struct scsi_cmnd *cmd)
int i = 0;
printk(KERN_NOTICE
- "arcmsr%d: abort device command of scsi id=%d lun=%d \n",
+ "arcmsr%d: abort device command of scsi id = %d lun = %d \n",
acb->host->host_no, cmd->device->id, cmd->device->lun);
acb->num_aborts++;
-
/*
************************************************
** the all interrupt service routine is locked
@@ -1445,10 +1539,306 @@ static const char *arcmsr_info(struct Scsi_Host *host)
type = "X-TYPE";
break;
}
- sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
+ sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
type, raid6 ? "( RAID6 capable)" : "",
ARCMSR_DRIVER_VERSION);
return buf;
}
+static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host;
+ struct AdapterControlBlock *acb;
+ uint8_t bus, dev_fun;
+ int error;
+
+ error = pci_enable_device(pdev);
+ if (error)
+ return PCI_ERS_RESULT_DISCONNECT;
+ pci_set_master(pdev);
+
+ host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof \
+(struct AdapterControlBlock));
+ if (!host)
+ return PCI_ERS_RESULT_DISCONNECT;
+ acb = (struct AdapterControlBlock *)host->hostdata;
+ memset(acb, 0, sizeof (struct AdapterControlBlock));
+
+ error = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ if (error) {
+ error = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (error) {
+ printk(KERN_WARNING
+ "scsi%d: No suitable DMA mask available\n",
+ host->host_no);
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+ }
+ bus = pdev->bus->number;
+ dev_fun = pdev->devfn;
+ acb = (struct AdapterControlBlock *) host->hostdata;
+ memset(acb, 0, sizeof(struct AdapterControlBlock));
+ acb->pdev = pdev;
+ acb->host = host;
+ host->max_sectors = ARCMSR_MAX_XFER_SECTORS;
+ host->max_lun = ARCMSR_MAX_TARGETLUN;
+ host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/
+ host->max_cmd_len = 16; /*this is issue of 64bit LBA, over 2T byte*/
+ host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES;
+ host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */
+ host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
+ host->this_id = ARCMSR_SCSI_INITIATOR_ID;
+ host->unique_id = (bus << 8) | dev_fun;
+ host->irq = pdev->irq;
+ error = pci_request_regions(pdev, "arcmsr");
+ if (error)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ acb->pmu = ioremap(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (!acb->pmu) {
+ printk(KERN_NOTICE "arcmsr%d: memory"
+ " mapping region fail \n", acb->host->host_no);
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+ acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
+ ACB_F_MESSAGE_RQBUFFER_CLEARED |
+ ACB_F_MESSAGE_WQBUFFER_READED);
+ acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
+ INIT_LIST_HEAD(&acb->ccb_free_list);
+
+ error = arcmsr_alloc_ccb_pool(acb);
+ if (error)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ error = request_irq(pdev->irq, arcmsr_do_interrupt,
+ IRQF_DISABLED | IRQF_SHARED, "arcmsr", acb);
+ if (error)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ arcmsr_iop_init(acb);
+ if (strncmp(acb->firm_version, "V1.42", 5) >= 0)
+ host->max_sectors = ARCMSR_MAX_XFER_SECTORS_B;
+
+ pci_set_drvdata(pdev, host);
+
+ error = scsi_add_host(host, &pdev->dev);
+ if (error)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ error = arcmsr_alloc_sysfs_attr(acb);
+ if (error)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ scsi_scan_host(host);
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void arcmsr_pci_ers_need_reset_forepart(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ struct AdapterControlBlock *acb = (struct AdapterControlBlock *)
host->hostdata;
+ struct MessageUnit __iomem *reg = acb->pmu;
+ struct CommandControlBlock *ccb;
+ /*clear and abort all outbound posted Q*/
+ int i = 0, found = 0;
+ int id, lun;
+ uint32_t flag_ccb, outbound_intstatus;
+
+ while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) &&
+ (i++ < 256)){
+ ccb = (struct CommandControlBlock *)(acb->vir2phy_offset
+ + (flag_ccb << 5));
+ if (ccb){
+ if ((ccb->acb != acb)||(ccb->startdone !=
+ ARCMSR_CCB_START)){
+ printk(KERN_NOTICE "arcmsr%d: polling \
+ get an illegal ccb"" command done ccb =
'0x%p'"
+ "ccboutstandingcount = %d \n",
+ acb->host->host_no, ccb,
+ atomic_read(&acb->ccboutstandingcount));
+ continue;
+ }
+
+ id = ccb->pcmd->device->id;
+ lun = ccb->pcmd->device->lun;
+ if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) {
+ if (acb->devstate[id][lun] ==
+ ARECA_RAID_GONE)
+ acb->devstate[id][lun] =
+ ARECA_RAID_GOOD;
+ ccb->pcmd->result = DID_OK << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ else {
+ switch(ccb->arcmsr_cdb.DeviceStatus) {
+ case ARCMSR_DEV_SELECT_TIMEOUT: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_NO_CONNECT << 16;
+
arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ case ARCMSR_DEV_ABORTED:
+
+ case ARCMSR_DEV_INIT_FAIL: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_BAD_TARGET << 16;
+
arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ case ARCMSR_DEV_CHECK_CONDITION: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GOOD;
+
arcmsr_report_sense_info(ccb);
+
arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ default:
+ printk(KERN_NOTICE
+ "arcmsr%d: scsi
\
+ id = %d lun =
%d"
+ " polling and \
+ getting command
\
+ error done"
+ "but got
unknown \
+ DeviceStatus = 0x%x \n"
+ , acb->host->host_no,
+ id, lun,
+ ccb->arcmsr_cdb.DeviceStatus);
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_BAD_TARGET << 16;
+
arcmsr_ccb_complete(ccb, 1);
+ break;
+ }
+ }
+ found = 1;
+ }
+ }
+ if (found){
+ outbound_intstatus = readl(®->outbound_intstatus) &
+
acb->outbound_int_enable;
+ writel(outbound_intstatus, ®->outbound_intstatus);
+ /*clear interrupt*/
+ }
+ return;
+}
+
+static void arcmsr_pci_ers_disconnect_forepart(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ struct AdapterControlBlock *acb = (struct AdapterControlBlock *)
host->hostdata;
+ struct MessageUnit __iomem *reg = acb->pmu;
+ struct CommandControlBlock *ccb;
+ /*clear and abort all outbound posted Q*/
+ int i = 0, found = 0;
+ int id, lun;
+ uint32_t flag_ccb, outbound_intstatus;
+
+ while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) &&
+ (i++ < 256)){
+ ccb = (struct CommandControlBlock
*)(acb->vir2phy_offset +
+ (flag_ccb << 5));
+ if (ccb){
+ if ((ccb->acb != acb)||(ccb->startdone !=
+ ARCMSR_CCB_START)){
+ printk(KERN_NOTICE
+ "arcmsr%d: polling get an
illegal ccb"
+ " command done ccb = '0x%p'"
+ "ccboutstandingcount = %d \n",
+ acb->host->host_no, ccb,
+
atomic_read(&acb->ccboutstandingcount));
+ continue;
+ }
+
+ id = ccb->pcmd->device->id;
+ lun = ccb->pcmd->device->lun;
+ if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) {
+ if (acb->devstate[id][lun] == ARECA_RAID_GONE)
+ acb->devstate[id][lun] =
ARECA_RAID_GOOD;
+ ccb->pcmd->result = DID_OK << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ else {
+ switch(ccb->arcmsr_cdb.DeviceStatus) {
+ case ARCMSR_DEV_SELECT_TIMEOUT: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_NO_CONNECT << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ case ARCMSR_DEV_ABORTED:
+
+ case ARCMSR_DEV_INIT_FAIL: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_BAD_TARGET << 16;
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ case ARCMSR_DEV_CHECK_CONDITION: {
+ acb->devstate[id][lun] =
+ ARECA_RAID_GOOD;
+ arcmsr_report_sense_info(ccb);
+ arcmsr_ccb_complete(ccb, 1);
+ }
+ break;
+
+ default:
+ printk(KERN_NOTICE "arcmsr%d: \
+ scsi id = %d lun = %d"
+ " polling and \
+ getting command error done"
+ "but got
unknown \
+ DeviceStatus = 0x%x \n"
+ ,
acb->host->host_no,
+ id, lun, ccb->arcmsr_cdb.DeviceStatus);
+ acb->devstate[id][lun] =
+ ARECA_RAID_GONE;
+ ccb->pcmd->result =
+ DID_BAD_TARGET << 16;
+
arcmsr_ccb_complete(ccb, 1);
+ break;
+ }
+ }
+ found = 1;
+ }
+ }
+ if (found){
+ outbound_intstatus = readl(®->outbound_intstatus) &
+ acb->outbound_int_enable;
+ writel(outbound_intstatus, ®->outbound_intstatus);
+ /*clear interrupt*/
+ }
+ return;
+}
+
+static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ switch (state) {
+ case pci_channel_io_frozen:
+ arcmsr_pci_ers_need_reset_forepart(pdev);
+ return PCI_ERS_RESULT_NEED_RESET;
+ case pci_channel_io_perm_failure:
+ arcmsr_pci_ers_disconnect_forepart(pdev);
+ return PCI_ERS_RESULT_DISCONNECT;
+ break;
+ default:
+ return PCI_ERS_RESULT_NEED_RESET;
+ }
+}
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