net/mlx5e: Check ets capability before ets query FW command
authorMoshe Shemesh <moshe@mellanox.com>
Thu, 19 Jan 2017 12:53:07 +0000 (14:53 +0200)
committerSaeed Mahameed <saeedm@mellanox.com>
Sun, 29 Jan 2017 21:31:26 +0000 (23:31 +0200)
On dcbnl callback getpgtccfgtx, the driver should check the ets
capability before ets query command is sent to firmware.
It is valid to return from this void function without changing in/out
parameters, as these parameters are initialized to
DCB_ATTR_VALUE_UNDEFINED.

Fixes: 3a6a931dfb8e ("net/mlx5e: Support DCBX CEE API")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c

index 35f9ae037ba0213bf6166feafefcc14318c795c8..0523ed47f597c715296c5ea843245625bf3dac62 100644 (file)
@@ -511,6 +511,11 @@ static void mlx5e_dcbnl_getpgtccfgtx(struct net_device *netdev,
        struct mlx5e_priv *priv = netdev_priv(netdev);
        struct mlx5_core_dev *mdev = priv->mdev;
 
+       if (!MLX5_CAP_GEN(priv->mdev, ets)) {
+               netdev_err(netdev, "%s, ets is not supported\n", __func__);
+               return;
+       }
+
        if (priority >= CEE_DCBX_MAX_PRIO) {
                netdev_err(netdev,
                           "%s, priority is out of range\n", __func__);