[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 <nick.cheng@areca.com.tw> [jejb: unused variable removal] Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
parent
727eead62e
commit
a1f6e0211b
|
@ -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);
|
||||
|
||||
|
|
|
@ -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 <erich@areca.com.tw>");
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue