commit a00f6296aaf92ebe89c72eb98c440410992a33c4
author Saurav Kashyap <saurav.kashyap@qlogic.com> Fri Nov 18 09:03:19 2011 -0800
committer James Bottomley <JBottomley@Parallels.com> Thu Dec 15 10:55:10 2011 +0400
tree 2f26b6cce7ac888009b1eb549f9a00cdf864a382
parent 5162cf0c4e3962b28a9c8bc1ce89d266db67aa55

[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 <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/qla2xxx/qla_bsg.c

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 @@
 
 	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;
 	}

drivers/scsi/qla2xxx/qla_init.c

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 @@
 	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 @@
 			    "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 "

drivers/scsi/qla2xxx/qla_iocb.c

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 @@
 			}
 		}
 
+		/* 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 @@
 			}
 		}
 
+		/* 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));