The original code would incorrectly hardcode ELS timeout values rather than using the traditional '2 * r_a_tov' value. In some cases, the hardcoded values would be larger than the mailbox-command-timeout and result in a needless BIG_HAMMER (ISP reset), the typical recovery mechanism employed in such cases. The second defect in the original code was in the assignment of the default 'ha->r_a_tov' to twice the traditional value. Correct this by setting the value to 10 seconds. Signed-off-by: Andrew Vasquez <andrew.vasquez@xxxxxxxxxx> --- drivers/scsi/qla2xxx/qla_gs.c | 10 +++++----- drivers/scsi/qla2xxx/qla_init.c | 8 ++++---- drivers/scsi/qla2xxx/qla_mbx.c | 2 +- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index 6226d88..c180876 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -39,7 +39,7 @@ qla2x00_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) ms_pkt->entry_count = 1; SET_TARGET_ID(ha, ms_pkt->loop_id, SIMPLE_NAME_SERVER); ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); - ms_pkt->timeout = __constant_cpu_to_le16(25); + ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ms_pkt->total_dsd_count = __constant_cpu_to_le16(2); ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size); @@ -75,7 +75,7 @@ qla24xx_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; ct_pkt->nport_handle = __constant_cpu_to_le16(NPH_SNS); - ct_pkt->timeout = __constant_cpu_to_le16(25); + ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); @@ -1144,7 +1144,7 @@ qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, ms_pkt->entry_count = 1; SET_TARGET_ID(ha, ms_pkt->loop_id, ha->mgmt_svr_loop_id); ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); - ms_pkt->timeout = __constant_cpu_to_le16(59); + ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ms_pkt->total_dsd_count = __constant_cpu_to_le16(2); ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size); @@ -1181,7 +1181,7 @@ qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id); - ct_pkt->timeout = __constant_cpu_to_le16(59); + ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); @@ -1761,7 +1761,7 @@ qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *ha, uint32_t req_size, ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id); - ct_pkt->timeout = __constant_cpu_to_le16(59); + ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4897663..364be7d 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1733,8 +1733,8 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) ha->login_timeout = nv->login_timeout; icb->login_timeout = nv->login_timeout; - /* Set minimum RATOV to 200 tenths of a second. */ - ha->r_a_tov = 200; + /* Set minimum RATOV to 100 tenths of a second. */ + ha->r_a_tov = 100; ha->loop_reset_delay = nv->reset_delay; @@ -3645,8 +3645,8 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) ha->login_timeout = le16_to_cpu(nv->login_timeout); icb->login_timeout = cpu_to_le16(nv->login_timeout); - /* Set minimum RATOV to 200 tenths of a second. */ - ha->r_a_tov = 200; + /* Set minimum RATOV to 100 tenths of a second. */ + ha->r_a_tov = 100; ha->loop_reset_delay = nv->reset_delay; diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 99d29ff..bb10358 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -2206,7 +2206,7 @@ qla24xx_abort_target(fc_port_t *fcport) tsk->p.tsk.entry_type = TSK_MGMT_IOCB_TYPE; tsk->p.tsk.entry_count = 1; tsk->p.tsk.nport_handle = cpu_to_le16(fcport->loop_id); - tsk->p.tsk.timeout = __constant_cpu_to_le16(25); + tsk->p.tsk.timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); tsk->p.tsk.control_flags = __constant_cpu_to_le32(TCF_TARGET_RESET); tsk->p.tsk.port_id[0] = fcport->d_id.b.al_pa; tsk->p.tsk.port_id[1] = fcport->d_id.b.area; -- 1.5.4.3.230.g2db511 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
