diff options
| author | Quinn Tran <quinn.tran@qlogic.com> | 2015-12-17 22:57:07 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2016-01-08 00:57:48 +0300 |
| commit | 2f424b9b36ad7062e9ade41a9fb034d21a9e4e4b (patch) | |
| tree | 16b9022e3a39b29ea0d495db00610e0535fe805a /drivers/scsi/qla2xxx/qla_target.h | |
| parent | fb3269baf4ecc2ce6d17d4eb537080035bdf6d5b (diff) | |
| download | linux-2f424b9b36ad7062e9ade41a9fb034d21a9e4e4b.tar.xz | |
qla2xxx: Move atioq to a different lock to reduce lock contention
99% of the time the ATIOQ has SCSI command. The other 1% of time
is something else. Most of the time this interrupt does not need
to hold the hardware_lock. We're moving the ATIO interrupt thread
to a different lock to reduce lock contention.
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_target.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_target.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index f5dbeabefcb7..71b2865ba3c8 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -835,6 +835,7 @@ struct qla_tgt { * HW lock. */ int irq_cmd_count; + int atio_irq_cmd_count; int datasegs_per_cmd, datasegs_per_cont, sg_tablesize; @@ -883,6 +884,7 @@ struct qla_tgt { struct qla_tgt_sess_op { struct scsi_qla_host *vha; + uint32_t chip_reset; struct atio_from_isp atio; struct work_struct work; struct list_head cmd_list; @@ -1155,7 +1157,7 @@ extern void qlt_enable_vha(struct scsi_qla_host *); extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *); extern void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *); extern void qlt_init_atio_q_entries(struct scsi_qla_host *); -extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *); +extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t); extern void qlt_24xx_config_rings(struct scsi_qla_host *); extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *, struct nvram_24xx *); |