[SCSI] qla2xxx: Add APEX support.

Allows priority setting for FCP_CMNDs.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 47 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 7f3bc45d2e20..e9c9f82c1d87 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -3896,3 +3896,50 @@ qla2x00_get_data_rate(scsi_qla_host_t *vha)
 
         return rval;
 }
+
+int
+qla24xx_set_fcp_prio(scsi_qla_host_t *vha, uint16_t loop_id, uint16_t priority,
+                uint16_t *mb)
+{
+        int rval;
+        mbx_cmd_t mc;
+        mbx_cmd_t *mcp = &mc;
+        struct qla_hw_data *ha = vha->hw;
+
+        if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
+                return QLA_FUNCTION_FAILED;
+
+        DEBUG11(printk(KERN_INFO
+            "%s(%ld): entered.\n", __func__, ha->host_no));
+
+        mcp->mb[0] = MBC_PORT_PARAMS;
+        mcp->mb[1] = loop_id;
+        if (ha->flags.fcp_prio_enabled)
+                mcp->mb[2] = BIT_1;
+        else
+                mcp->mb[2] = BIT_2;
+        mcp->mb[4] = priority & 0xf;
+        mcp->mb[9] = vha->vp_idx;
+        mcp->out_mb = MBX_9|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
+        mcp->in_mb = MBX_4|MBX_3|MBX_1|MBX_0;
+        mcp->tov = 30;
+        mcp->flags = 0;
+        rval = qla2x00_mailbox_command(vha, mcp);
+        if (mb != NULL) {
+                mb[0] = mcp->mb[0];
+                mb[1] = mcp->mb[1];
+                mb[3] = mcp->mb[3];
+                mb[4] = mcp->mb[4];
+        }
+
+        if (rval != QLA_SUCCESS) {
+                DEBUG2_3_11(printk(KERN_WARNING
+                    "%s(%ld): failed=%x.\n", __func__,
+                    vha->host_no, rval));
+        } else {
+                DEBUG11(printk(KERN_INFO
+                    "%s(%ld): done.\n", __func__, vha->host_no));
+        }
+
+        return rval;
+}