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Diffstat (limited to 'drivers/scsi/qla2xxx')
-rw-r--r--drivers/scsi/qla2xxx/qla_gbl.h1
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c10
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c8
3 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index b12de017624..5347e35e7d6 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -65,6 +65,7 @@ extern int ql2xfdmienable;
extern int ql2xallocfwdump;
extern int ql2xextended_error_logging;
extern int ql2xqfullrampup;
+extern int ql2xqfulltracking;
extern int ql2xiidmaenable;
extern int ql2xmaxqueues;
extern int ql2xmultique_tag;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 41e50c2bec0..eb35d2050f7 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -765,6 +765,9 @@ qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data)
struct qla_hw_data *ha = vha->hw;
struct req_que *req = NULL;
+ if (!ql2xqfulltracking)
+ return;
+
req = vha->req;
if (!req)
return;
@@ -807,6 +810,9 @@ qla2x00_ramp_up_queue_depth(scsi_qla_host_t *vha, struct req_que *req,
fc_port_t *fcport;
struct scsi_device *sdev;
+ if (!ql2xqfulltracking)
+ return;
+
sdev = sp->cmd->device;
if (sdev->queue_depth >= req->max_q_depth)
return;
@@ -1125,6 +1131,8 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
scsi_status));
/* Adjust queue depth for all luns on the port. */
+ if (!ql2xqfulltracking)
+ break;
fcport->last_queue_full = jiffies;
starget_for_each_device(cp->device->sdev_target,
fcport, qla2x00_adjust_sdev_qdepth_down);
@@ -1183,6 +1191,8 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
* Adjust queue depth for all luns on the
* port.
*/
+ if (!ql2xqfulltracking)
+ break;
fcport->last_queue_full = jiffies;
starget_for_each_device(
cp->device->sdev_target, fcport,
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 94e53a5fd9a..155a204ed8e 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -77,6 +77,14 @@ module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmaxqdepth,
"Maximum queue depth to report for target devices.");
+int ql2xqfulltracking = 1;
+module_param(ql2xqfulltracking, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(ql2xqfulltracking,
+ "Controls whether the driver tracks queue full status "
+ "returns and dynamically adjusts a scsi device's queue "
+ "depth. Default is 1, perform tracking. Set to 0 to "
+ "disable dynamic tracking and adjustment of queue depth.");
+
int ql2xqfullrampup = 120;
module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xqfullrampup,