qla2xxx: Add FA-WWN functionality.

Add support for the FA-WWN (fabric assigned wwn) fabric switch feature.

(Fabric Assigned World Wide Port Name)

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

3 files changed, 38 insertions, 7 deletions

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 28442d082ba1..b33eec01d6dc 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -15,11 +15,8 @@
  * |                              |                    | 0x0144,0x0146  |
  * |                              |                    | 0x015b-0x0160  |
  * |                              |                    | 0x016e-0x0170  |
- * | Mailbox commands             |       0x118d       | 0x1018-0x1019  |
- * |                              |                    | 0x10ca         |
- * |                              |                    | 0x1115-0x1116  |
- * |                              |                    | 0x111a-0x111b  |
- * |                              |                    | 0x1155-0x1158  |
+ * | Mailbox commands             |       0x118d       | 0x1115-0x1116  |
+ * |                              |                    | 0x111a-0x111b  |
  * | Device Discovery             |       0x2016       | 0x2020-0x2022, |
  * |                              |                    | 0x2011-0x2012, |
  * |                              |                    | 0x2099-0x20a4  |
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index c7d1c4569fa1..e8669aa7e002 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -317,7 +317,7 @@ struct init_cb_24xx {
          * BIT 3  = Reserved
          * BIT 4  = Enable Target Mode
          * BIT 5  = Disable Initiator Mode
-         * BIT 6  = Reserved
+         * BIT 6  = Acquire FA-WWN
          * BIT 7  = Reserved
          *
          * BIT 8  = Reserved
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index ca7f4f012511..2de901bf87ab 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -1085,6 +1085,8 @@ qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa,
         mcp->in_mb = MBX_9|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
         if (IS_CNA_CAPABLE(vha->hw))
                 mcp->in_mb |= MBX_13|MBX_12|MBX_11|MBX_10;
+        if (IS_FWI2_CAPABLE(vha->hw))
+                mcp->in_mb |= MBX_19|MBX_18|MBX_17|MBX_16;
         mcp->tov = MBX_TOV_SECONDS;
         mcp->flags = 0;
         rval = qla2x00_mailbox_command(vha, mcp);
@@ -1118,6 +1120,22 @@ qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa,
                         vha->fcoe_vn_port_mac[1] = mcp->mb[13] >> 8;
                         vha->fcoe_vn_port_mac[0] = mcp->mb[13] & 0xff;
                 }
+                /* If FA-WWN supported */
+                if (mcp->mb[7] & BIT_14) {
+                        vha->port_name[0] = MSB(mcp->mb[16]);
+                        vha->port_name[1] = LSB(mcp->mb[16]);
+                        vha->port_name[2] = MSB(mcp->mb[17]);
+                        vha->port_name[3] = LSB(mcp->mb[17]);
+                        vha->port_name[4] = MSB(mcp->mb[18]);
+                        vha->port_name[5] = LSB(mcp->mb[18]);
+                        vha->port_name[6] = MSB(mcp->mb[19]);
+                        vha->port_name[7] = LSB(mcp->mb[19]);
+                        fc_host_port_name(vha->host) =
+                            wwn_to_u64(vha->port_name);
+                        ql_dbg(ql_dbg_mbx, vha, 0x10ca,
+                            "FA-WWN acquired %016llx\n",
+                            wwn_to_u64(vha->port_name));
+                }
         }
 
         return rval;
@@ -3328,8 +3346,24 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
                     rptid_entry->port_id[2], rptid_entry->port_id[1],
                     rptid_entry->port_id[0]);
 
+                /* FA-WWN is only for physical port */
+                if (!vp_idx) {
+                        void *wwpn = ha->init_cb->port_name;
+
+                        if (!MSB(stat)) {
+                                if (rptid_entry->vp_idx_map[1] & BIT_6)
+                                        wwpn = rptid_entry->reserved_4 + 8;
+                        }
+                        memcpy(vha->port_name, wwpn, WWN_SIZE);
+                        fc_host_port_name(vha->host) =
+                            wwn_to_u64(vha->port_name);
+                        ql_dbg(ql_dbg_mbx, vha, 0x1018,
+                            "FA-WWN portname %016llx (%x)\n",
+                            fc_host_port_name(vha->host), MSB(stat));
+                }
+
                 vp = vha;
-                if (vp_idx == 0 && (MSB(stat) != 1))
+                if (vp_idx == 0)
                         goto reg_needed;
 
                 if (MSB(stat) != 0 && MSB(stat) != 2) {