[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>
This commit is contained in:
parent
7aef45ac92
commit
ffec28a3e9
|
@ -987,6 +987,22 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
|
|||
if (lscsi_status != 0) {
|
||||
cp->result = DID_OK << 16 | lscsi_status;
|
||||
|
||||
if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
|
||||
DEBUG2(printk(KERN_INFO
|
||||
"scsi(%ld): QUEUE FULL status detected "
|
||||
"0x%x-0x%x.\n", ha->host_no, comp_status,
|
||||
scsi_status));
|
||||
|
||||
/*
|
||||
* Adjust queue depth for all luns on the
|
||||
* port.
|
||||
*/
|
||||
fcport->last_queue_full = jiffies;
|
||||
starget_for_each_device(
|
||||
cp->device->sdev_target, fcport,
|
||||
qla2x00_adjust_sdev_qdepth_down);
|
||||
break;
|
||||
}
|
||||
if (lscsi_status != SS_CHECK_CONDITION)
|
||||
break;
|
||||
|
||||
|
|
Loading…
Reference in a new issue