diff options
| author | Duane Grigsby <duane.grigsby@cavium.com> | 2017-07-21 09:32:25 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-07 14:04:02 -0400 |
| commit | deeae7a69f755c53a68a907f336c5cee54932025 (patch) | |
| tree | 0a5f17236c14b4ee9eecfed1577a38632cc79091 /drivers/scsi/qla2xxx/qla_os.c | |
| parent | 0f7e51f6b32a015552f32ce34dac1c452d96293a (diff) | |
| download | lwn-deeae7a69f755c53a68a907f336c5cee54932025.tar.gz lwn-deeae7a69f755c53a68a907f336c5cee54932025.zip | |
scsi: qla2xxx: Added change to enable ZIO for FC-NVMe devices
Add support to the driver to set the exchange threshold value for
the number of outstanding AENs.
Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com>
Signed-off-by: Darren Trapp <darren.trapp@cavium.com>
Signed-off-by: Anil Gurumurthy <anil.gurumurthy@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 635ce75c630b..d9a115577dc8 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2751,6 +2751,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) spin_lock_init(&ha->tgt.sess_lock); spin_lock_init(&ha->tgt.atio_lock); + atomic_set(&ha->nvme_active_aen_cnt, 0); /* Clear our data area */ ha->bars = bars; @@ -5828,6 +5829,17 @@ intr_on_check: mutex_unlock(&ha->mq_lock); } + if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED, &base_vha->dpc_flags)) { + ql_log(ql_log_info, base_vha, 0xffffff, + "nvme: SET ZIO Activity exchange threshold to %d.\n", + ha->nvme_last_rptd_aen); + if (qla27xx_set_zio_threshold(base_vha, ha->nvme_last_rptd_aen)) { + ql_log(ql_log_info, base_vha, 0xffffff, + "nvme: Unable to SET ZIO Activity exchange threshold to %d.\n", + ha->nvme_last_rptd_aen); + } + } + if (!IS_QLAFX00(ha)) qla2x00_do_dpc_all_vps(base_vha); @@ -6025,12 +6037,15 @@ qla2x00_timer(scsi_qla_host_t *vha) * FC-NVME * see if the active AEN count has changed from what was last reported. */ - if (atomic_read(&vha->nvme_active_aen_cnt) != vha->nvme_last_rptd_aen) { - vha->nvme_last_rptd_aen = - atomic_read(&vha->nvme_active_aen_cnt); + if (!vha->vp_idx && + atomic_read(&ha->nvme_active_aen_cnt) != ha->nvme_last_rptd_aen && + ha->zio_mode == QLA_ZIO_MODE_6) { ql_log(ql_log_info, vha, 0x3002, - "reporting new aen count of %d to the fw\n", - vha->nvme_last_rptd_aen); + "nvme: Sched: Set ZIO exchange threshold to %d.\n", + ha->nvme_last_rptd_aen); + ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt); + set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags); + start_dpc++; } /* Schedule the DPC routine if needed */ |