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authorMark Haverkamp <markh@osdl.org>2006-03-27 09:43:40 -0800
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-04-13 10:13:17 -0500
commit77d644d4d70c9ad5df51792575f43a950525c9aa (patch)
tree84dd02706a7554e26820ff98586844ad4e996d68 /drivers/scsi/aacraid
parente5718774f12234c7c9be8944001cfd109ba955e1 (diff)
[SCSI] aacraid: Track command ownership in driver
Received from Mark Salyzyn The loss of the ownership flags, despite their flaws, in the scsi command were sorely missed and are reinstated more accurately in the aacraid driver to track commands and permit us to properly handle error recovery actions. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aacraid')
-rw-r--r--drivers/scsi/aacraid/aachba.c41
-rw-r--r--drivers/scsi/aacraid/aacraid.h5
-rw-r--r--drivers/scsi/aacraid/linit.c4
3 files changed, 31 insertions, 19 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index a1e47300367..31319d05210 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -387,6 +387,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
struct scsi_cmnd * scsicmd;
scsicmd = (struct scsi_cmnd *) context;
+ scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
if (fibptr == NULL)
@@ -453,8 +454,10 @@ static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
/*
* Check that the command queued to the controller
*/
- if (status == -EINPROGRESS)
+ if (status == -EINPROGRESS) {
+ scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
return 0;
+ }
printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
aac_fib_complete(cmd_fibcontext);
@@ -907,6 +910,7 @@ static void io_callback(void *context, struct fib * fibptr)
u32 cid;
scsicmd = (struct scsi_cmnd *) context;
+ scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
cid = scmd_id(scsicmd);
@@ -1151,8 +1155,10 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)
/*
* Check that the command queued to the controller
*/
- if (status == -EINPROGRESS)
+ if (status == -EINPROGRESS) {
+ scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
return 0;
+ }
printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
/*
@@ -1318,8 +1324,8 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
/*
* Check that the command queued to the controller
*/
- if (status == -EINPROGRESS)
- {
+ if (status == -EINPROGRESS) {
+ scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
return 0;
}
@@ -1341,6 +1347,7 @@ static void synchronize_callback(void *context, struct fib *fibptr)
struct scsi_cmnd *cmd;
cmd = context;
+ cmd->SCp.phase = AAC_OWNER_MIDLEVEL;
dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
smp_processor_id(), jiffies));
@@ -1386,12 +1393,12 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
unsigned long flags;
/*
- * Wait for all commands to complete to this specific
- * target (block).
+ * Wait for all outstanding queued commands to complete to this
+ * specific target (block).
*/
spin_lock_irqsave(&sdev->list_lock, flags);
list_for_each_entry(cmd, &sdev->cmd_list, list)
- if (cmd != scsicmd && cmd->serial_number != 0) {
+ if (cmd != scsicmd && cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
++active;
break;
}
@@ -1434,8 +1441,10 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
/*
* Check that the command queued to the controller
*/
- if (status == -EINPROGRESS)
+ if (status == -EINPROGRESS) {
+ scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
return 0;
+ }
printk(KERN_WARNING
"aac_synchronize: aac_fib_send failed with status: %d.\n", status);
@@ -1458,7 +1467,6 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
struct Scsi_Host *host = scsicmd->device->host;
struct aac_dev *dev = (struct aac_dev *)host->hostdata;
struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
- int ret;
/*
* If the bus, id or lun is out of range, return fail
@@ -1729,24 +1737,19 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
* containers to /dev/sd device names
*/
- spin_unlock_irq(host->host_lock);
if (scsicmd->request->rq_disk)
strlcpy(fsa_dev_ptr[cid].devname,
scsicmd->request->rq_disk->disk_name,
min(sizeof(fsa_dev_ptr[cid].devname),
sizeof(scsicmd->request->rq_disk->disk_name) + 1));
- ret = aac_read(scsicmd, cid);
- spin_lock_irq(host->host_lock);
- return ret;
+
+ return aac_read(scsicmd, cid);
case WRITE_6:
case WRITE_10:
case WRITE_12:
case WRITE_16:
- spin_unlock_irq(host->host_lock);
- ret = aac_write(scsicmd, cid);
- spin_lock_irq(host->host_lock);
- return ret;
+ return aac_write(scsicmd, cid);
case SYNCHRONIZE_CACHE:
/* Issue FIB to tell Firmware to flush it's cache */
@@ -1891,6 +1894,7 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
struct scsi_cmnd *scsicmd;
scsicmd = (struct scsi_cmnd *) context;
+ scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
if (fibptr == NULL)
@@ -2162,7 +2166,8 @@ static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
/*
* Check that the command queued to the controller
*/
- if (status == -EINPROGRESS){
+ if (status == -EINPROGRESS) {
+ scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
return 0;
}
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index fcf046ca996..51c96cac484 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1770,6 +1770,11 @@ static inline u32 cap_to_cyls(sector_t capacity, u32 divisor)
}
struct scsi_cmnd;
+/* SCp.phase values */
+#define AAC_OWNER_MIDLEVEL 0x101
+#define AAC_OWNER_LOWLEVEL 0x102
+#define AAC_OWNER_ERROR_HANDLER 0x103
+#define AAC_OWNER_FIRMWARE 0x106
const char *aac_driverinfo(struct Scsi_Host *);
struct fib *aac_fib_alloc(struct aac_dev *dev);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 72033077864..9f3cc7b7123 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -243,6 +243,7 @@ static struct aac_driver_ident aac_drivers[] = {
static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
cmd->scsi_done = done;
+ cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
return (aac_scsi_cmd(cmd) ? FAILED : 0);
}
@@ -471,7 +472,8 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
__shost_for_each_device(dev, host) {
spin_lock_irqsave(&dev->list_lock, flags);
list_for_each_entry(command, &dev->cmd_list, list) {
- if (command->serial_number) {
+ if ((command != cmd) &&
+ (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
active++;
break;
}