diff options
author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2007-01-29 13:22:27 -0500 |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-31 12:13:45 -0500 |
commit | ffec28a3e959b156ea5906838a8897e27c8bbf22 (patch) | |
tree | ea6c37848a00f087b57ba0291bd28de23d83ee17 /drivers/scsi/qla2xxx | |
parent | 7aef45ac92f49e76d990b51b7ecd714b9a608be1 (diff) |
[SCSI] qla2xxx: Enable queue-full throttling when UNDERRUN detected.
As ISP24xx firmware can return a CS_DATA_UNDERRUN completion
status when the storage has returned a
SAM_STAT_TASK_SET_FULL scsi-status.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla2xxx')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 6e19769b46d2..df69dc016a53 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c | |||
@@ -987,6 +987,22 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) | |||
987 | if (lscsi_status != 0) { | 987 | if (lscsi_status != 0) { |
988 | cp->result = DID_OK << 16 | lscsi_status; | 988 | cp->result = DID_OK << 16 | lscsi_status; |
989 | 989 | ||
990 | if (lscsi_status == SAM_STAT_TASK_SET_FULL) { | ||
991 | DEBUG2(printk(KERN_INFO | ||
992 | "scsi(%ld): QUEUE FULL status detected " | ||
993 | "0x%x-0x%x.\n", ha->host_no, comp_status, | ||
994 | scsi_status)); | ||
995 | |||
996 | /* | ||
997 | * Adjust queue depth for all luns on the | ||
998 | * port. | ||
999 | */ | ||
1000 | fcport->last_queue_full = jiffies; | ||
1001 | starget_for_each_device( | ||
1002 | cp->device->sdev_target, fcport, | ||
1003 | qla2x00_adjust_sdev_qdepth_down); | ||
1004 | break; | ||
1005 | } | ||
990 | if (lscsi_status != SS_CHECK_CONDITION) | 1006 | if (lscsi_status != SS_CHECK_CONDITION) |
991 | break; | 1007 | break; |
992 | 1008 | ||