diff options
| author | Chad Dupuis <chad.dupuis@qlogic.com> | 2010-10-15 11:27:42 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-10-25 16:00:22 -0500 |
| commit | ff454b01b4ebe60b14092943978000928bf8c551 (patch) | |
| tree | 7652f7b9e6fd5577938b52952615ad3ca76618aa | |
| parent | 4d97cc5342ebb1bef83477fafe18490dd8c59464 (diff) | |
| download | blackbird-op-linux-ff454b01b4ebe60b14092943978000928bf8c551.tar.gz blackbird-op-linux-ff454b01b4ebe60b14092943978000928bf8c551.zip | |
[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>
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index e0e43d9e7ed1..55870a36ec6a 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1757,6 +1757,8 @@ check_scsi_status: 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 @@ check_scsi_status: 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; |
