diff options
| author | Tariq Toukan <tariqt@nvidia.com> | 2021-08-11 15:06:21 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-08-16 16:17:29 -0700 |
| commit | ec60c4581bd952296c1f81115eabd0a570042458 (patch) | |
| tree | 4f24de8ce4d2e7045858ae75f5281ace33efad3a /drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | |
| parent | 21ecfcb83a8588f21184eaa57c795c0c5a0eab2b (diff) | |
net/mlx5e: Support MQPRIO channel mode
Add support for MQPRIO channel mode, in which a partition to TCs
is defined over the channels. We allow partitions with contiguous
queue indices, with no holes within. We do not allow modification
to the num of channels while this MQPRIO mode is active.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 839a753fda32..5696d3f1baaf 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -467,6 +467,16 @@ int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv, goto out; } + /* Don't allow changing the number of channels if MQPRIO mode channel offload is active, + * because it defines a partition over the channels queues. + */ + if (cur_params->mqprio.mode == TC_MQPRIO_MODE_CHANNEL) { + err = -EINVAL; + netdev_err(priv->netdev, "%s: MQPRIO mode channel offload is active, cannot change the number of channels\n", + __func__); + goto out; + } + new_params = *cur_params; new_params.num_channels = count; |