net/mlx4_en: Enable DCB ETS ops only when supported by the firmware
Enable the DCB ETS ops only when supported by the firmware. For older firmware/cards
which don't support ETS, advertize only PFC DCB ops.
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 473c9d2..d2a4f91 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2013,8 +2013,14 @@
INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
#ifdef CONFIG_MLX4_EN_DCB
- if (!mlx4_is_slave(priv->mdev->dev))
- dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
+ if (!mlx4_is_slave(priv->mdev->dev)) {
+ if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
+ dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
+ } else {
+ en_info(priv, "enabling only PFC DCB ops\n");
+ dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
+ }
+ }
#endif
for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)