diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c
index 8dacb49eabd98c92339b9d83e8f45166b8f33f2a..f1b56de648717132d027f5d4817b55b1266fdaf3 100644
--- a/drivers/infiniband/hw/mlx5/mad.c
+++ b/drivers/infiniband/hw/mlx5/mad.c
@@ -187,6 +187,8 @@ static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt,
 			     port_xmit_discards);
 	MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors,
 			     port_xmit_constraint_errors);
+	MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_wait,
+			     port_xmit_wait);
 	MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors,
 			     port_rcv_constraint_errors);
 	MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors,
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 954f42c268a40890ab7f6457a54676cff43f95ff..32de0724b40009adc2a802dcc5abafbb5505c0b1 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1456,7 +1456,9 @@ struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits {
 
 	u8         vl_15_dropped[0x10];
 
-	u8	   reserved_at_a0[0xa0];
+	u8	   reserved_at_a0[0x80];
+
+	u8         port_xmit_wait[0x20];
 };
 
 struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits {