[SCSI] lpfc: block target when port queueing limit is hit
Instead of blocking the entire host when the port's
queueing limit is hit, we should only block the port's
target. This will allow IO to other ports to execute.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index ff20abd..bf34178 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3062,7 +3062,7 @@
goto out_fail_command;
}
if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth)
- goto out_host_busy;
+ goto out_tgt_busy;
lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp);
if (lpfc_cmd == NULL) {
@@ -3179,6 +3179,9 @@
out_host_busy:
return SCSI_MLQUEUE_HOST_BUSY;
+ out_tgt_busy:
+ return SCSI_MLQUEUE_TARGET_BUSY;
+
out_fail_command:
done(cmnd);
return 0;