diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 870d44992c70819308a85580f0607e30daabea71..e78d341cbd6001998f8a8a9036b31811dbfab252 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -3682,6 +3682,8 @@ static void mc7_prep(struct adapter *adapter, struct mc7 *mc7,
 void mac_prep(struct cmac *mac, struct adapter *adapter, int index)
 {
 	mac->adapter = adapter;
+	if (!adapter->params.vpd.xauicfg[1])
+		index = 0;
 	mac->offset = (XGMAC0_1_BASE_ADDR - XGMAC0_0_BASE_ADDR) * index;
 	mac->nucast = 1;