diff options
| author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2007-01-29 10:22:27 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-31 11:13:45 -0600 |
| commit | ffec28a3e959b156ea5906838a8897e27c8bbf22 (patch) | |
| tree | ea6c37848a00f087b57ba0291bd28de23d83ee17 /drivers/scsi/qla2xxx | |
| parent | 7aef45ac92f49e76d990b51b7ecd714b9a608be1 (diff) | |
| download | blackbird-obmc-linux-ffec28a3e959b156ea5906838a8897e27c8bbf22.tar.gz blackbird-obmc-linux-ffec28a3e959b156ea5906838a8897e27c8bbf22.zip | |
[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) 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; |
