bnxt_en: Rename switch_id to dsn

Instead of switch_id, renaming it to dsn will be more meaningful
so that it can be used to display device serial number in follow up
patch via devlink_info command.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -11388,8 +11388,8 @@ int bnxt_get_port_parent_id(struct net_device *dev,
 	if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_DSN_VALID))
 		return -EOPNOTSUPP;
 
-	ppid->id_len = sizeof(bp->switch_id);
-	memcpy(ppid->id, bp->switch_id, ppid->id_len);
+	ppid->id_len = sizeof(bp->dsn);
+	memcpy(ppid->id, bp->dsn, ppid->id_len);
 
 	return 0;
 }
@@ -11870,7 +11870,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (BNXT_PF(bp)) {
 		/* Read the adapter's DSN to use as the eswitch switch_id */
-		bnxt_pcie_dsn_get(bp, bp->switch_id);
+		rc = bnxt_pcie_dsn_get(bp, bp->dsn);
 	}
 
 	/* MTU range: 60 - FW defined max */

drivers/net/ethernet/broadcom/bnxt/bnxt.h

@@ -1848,7 +1848,7 @@ struct bnxt {
 	enum devlink_eswitch_mode eswitch_mode;
 	struct bnxt_vf_rep	**vf_reps; /* array of vf-rep ptrs */
 	u16			*cfa_code_map; /* cfa_code -> vf_idx map */
-	u8			switch_id[8];
+	u8			dsn[8];
 	struct bnxt_tc_info	*tc_info;
 	struct list_head	tc_indr_block_list;
 	struct notifier_block	tc_netdev_nb;

drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c

@@ -566,8 +566,8 @@ int bnxt_dl_register(struct bnxt *bp)
 		return 0;
 
 	devlink_port_attrs_set(&bp->dl_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
-			       bp->pf.port_id, false, 0,
-			       bp->switch_id, sizeof(bp->switch_id));
+			       bp->pf.port_id, false, 0, bp->dsn,
+			       sizeof(bp->dsn));
 	rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
 	if (rc) {
 		netdev_err(bp->dev, "devlink_port_register failed");