aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/qla2xxx
diff options
context:
space:
mode:
authorAndrew Vasquez <andrew.vasquez@qlogic.com>2007-01-29 13:22:27 -0500
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-01-31 12:13:45 -0500
commitffec28a3e959b156ea5906838a8897e27c8bbf22 (patch)
treeea6c37848a00f087b57ba0291bd28de23d83ee17 /drivers/scsi/qla2xxx
parent7aef45ac92f49e76d990b51b7ecd714b9a608be1 (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.c16
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