[SCSI] qla2xxx: Group CS_RESET return status with other link level event statuses.
Currently when we receive a CS_RESET as a response for a SCSI command the
driver will return DID_TRANSPORT_DISRUPTED back to the SCSI mid-layer. There
are certain circumstances where this could cause the mid-layer to exhaust all of
its retries if the FC port goes away for a short time. This will result in
commands being prematurly failed. Moving the CS_RESET return code to be
grouped with other link level events will cause the FC transport layer to block
that target's queue thus preventing the premature exhaustion of retries.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index e0e43d9..55870a3 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1757,6 +1757,8 @@
case CS_INCOMPLETE:
case CS_PORT_UNAVAILABLE:
case CS_TIMEOUT:
+ case CS_RESET:
+
/*
* We are going to have the fc class block the rport
* while we try to recover so instruct the mid layer
@@ -1781,10 +1783,6 @@
qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
break;
- case CS_RESET:
- cp->result = DID_TRANSPORT_DISRUPTED << 16;
- break;
-
case CS_ABORTED:
cp->result = DID_RESET << 16;
break;