[PATCH 5.2 118/135] net/mlx5e: Only support tx/rx pause setting for port owner

[Sasha Levin]

From: Huy Nguyen <h...@mellanox.com>

[ Upstream commit 466df6eb4a9e813b3cfc674363316450c57a89c5 ]

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 <h...@mellanox.com>
Reviewed-by: Parav Pandit <pa...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index f637d81f08bcb..22d5101769651 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1317,6 +1317,9 @@ int mlx5e_ethtool_set_pauseparam(struct mlx5e_priv *priv,
        struct mlx5_core_dev *mdev = priv->mdev;
        int err;
 
+       if (!MLX5_CAP_GEN(mdev, vport_group_manager))
+               return -EOPNOTSUPP;
+
        if (pauseparam->autoneg)
                return -EINVAL;
 
-- 
2.20.1