From a00f6296aaf92ebe89c72eb98c440410992a33c4 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 18 Nov 2011 09:03:19 -0800 Subject: [PATCH] [SCSI] qla2xxx: Implement FCP priority tagging for 82xx adapters. This provides a capability to set a priority in the FCP packet. Signed-off-by: Saurav Kashyap Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_bsg.c | 2 +- drivers/scsi/qla2xxx/qla_init.c | 7 ++++++- drivers/scsi/qla2xxx/qla_iocb.c | 9 +++++++++ 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index 371d0de..c0bc0c6 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -102,7 +102,7 @@ qla24xx_proc_fcp_prio_cfg_cmd(struct fc_bsg_job *bsg_job) bsg_job->reply->reply_payload_rcv_len = 0; - if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))) { + if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) || IS_QLA82XX(ha))) { ret = -EINVAL; goto exit_fcp_prio_cfg; } diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index ec73cc1..05931e6 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -5642,6 +5642,11 @@ qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport) if (priority < 0) return QLA_FUNCTION_FAILED; + if (IS_QLA82XX(vha->hw)) { + fcport->fcp_prio = priority & 0xf; + return QLA_SUCCESS; + } + ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb); if (ret == QLA_SUCCESS) { if (fcport->fcp_prio != priority) @@ -5650,7 +5655,7 @@ qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport) "port_id=%02x%02x%02x.\n", priority, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); - fcport->fcp_prio = priority; + fcport->fcp_prio = priority & 0xf; } else ql_dbg(ql_dbg_user, vha, 0x704f, "Unable to update FCP_CMND priority - ret=0x%x for " diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index d2cc0cc..841ffb3 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -2432,6 +2432,11 @@ sufficient_dsds: } } + /* Populate the FCP_PRIO. */ + if (ha->flags.fcp_prio_enabled) + ctx->fcp_cmnd->task_attribute |= + sp->fcport->fcp_prio << 3; + memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + @@ -2501,6 +2506,10 @@ sufficient_dsds: } } + /* Populate the FCP_PRIO. */ + if (ha->flags.fcp_prio_enabled) + cmd_pkt->task |= sp->fcport->fcp_prio << 3; + /* Load SCSI command packet. */ memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); -- 2.7.4