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net/mlx5e: Check ets capability before ets query FW command

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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: 3a6a931dfb ("net/mlx5e: Support DCBX CEE API")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Moshe Shemesh 2017-01-19 14:53:07 +02:00 committed by Saeed Mahameed
parent a100ff3eef
commit d15118af26
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
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@ -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__);