diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_gbl.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 10 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 8 |
3 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index b12de01..5347e35 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 41e50c2..eb35d20 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 94e53a5..155a204e 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, |
