From: Huy Nguyen <huyn@mellanox.com>
Date: Thu, 1 Aug 2019 11:10:19 -0500
Subject: net/mlx5e: Only support tx/rx pause setting for port owner
Git-commit: 466df6eb4a9e813b3cfc674363316450c57a89c5
Patch-mainline: 5.3-rc6
References: networking-stable-19_08_21
Only support changing tx/rx pause frame setting if the net device
is the vport group manager.
Fixes: 3c2d18ef22df ("net/mlx5e: Support ethtool get/set_pauseparam")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1399,6 +1399,9 @@ static int mlx5e_set_pauseparam(struct n
struct mlx5_core_dev *mdev = priv->mdev;
int err;
+ if (!MLX5_CAP_GEN(mdev, vport_group_manager))
+ return -EOPNOTSUPP;
+
if (pauseparam->autoneg)
return -EINVAL;