diff options
| author | Quinn Tran | 2017-06-13 20:47:20 -0700 |
|---|---|---|
| committer | Martin K. Petersen | 2017-06-27 21:21:40 -0400 |
| commit | 09620eeb62c4167d0c206f9a69730fa9e9251aae (patch) | |
| tree | 7c03e5194e923553bebefd958d645e7c2eb8963f /drivers/scsi/qla2xxx/qla_gbl.h | |
| parent | d65237c7f086042b5630d94fe2d151f62c09f723 (diff) | |
scsi: qla2xxx: Add debug knob for user control workload
For Target mode, user can control the work load by placing qla2xxx's irq
vector on certain CPU via the smp_affinity knob. This patch allows user
to control the number of QPair's irq to be active. The irqs are
allocated at driver load time until unload. The work itself is placed on
the QPair based on user setting.
Usage:
modprobe qla2xxx qlini_mode=disabled ql2xuctrlirq=1
mount -t debugfs none /sys/kernel/debug
echo 2 > /sys/kernel/debug/qla2xxx/qla2xxx_[host num]/naqp
echo [cpu id] > /proc/irq/[irq id]/smp_affinity_list
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_gbl.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_gbl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index f5493eda0110..beebf96c23d4 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -139,6 +139,7 @@ extern int ql2xexchoffld; extern int ql2xiniexchg; extern int ql2xfwholdabts; extern int ql2xmvasynctoatio; +extern int ql2xuctrlirq; extern int qla2x00_loop_reset(scsi_qla_host_t *); extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int); @@ -856,5 +857,6 @@ void qla24xx_delete_sess_fn(struct work_struct *); void qlt_unknown_atio_work_fn(struct work_struct *); void qlt_update_host_map(struct scsi_qla_host *, port_id_t); void qlt_remove_target_resources(struct qla_hw_data *); +void qlt_clr_qp_table(struct scsi_qla_host *vha); #endif /* _QLA_GBL_H */ |