[SCSI] qla2xxx: Ramp down queue depth for attached SCSI devices when driver resources are low.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 45130738c2bf..1b192c8bb133 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1934,6 +1934,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 
         /* Fast path completion. */
         if (comp_status == CS_COMPLETE && scsi_status == 0) {
+                qla2x00_do_host_ramp_up(vha);
                 qla2x00_process_completed_request(vha, req, handle);
 
                 return;
@@ -2193,6 +2194,9 @@ out:
                     cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp), rsp_info_len,
                     resid_len, fw_resid_len);
 
+        if (!res)
+                qla2x00_do_host_ramp_up(vha);
+
         if (rsp->status_srb == NULL)
                 sp->done(ha, sp, res);
 }