diff options
| author | Tariq Toukan | 2018-11-20 10:50:30 +0100 |
|---|---|---|
| committer | Saeed Mahameed | 2018-12-21 07:54:20 +0100 |
| commit | 6277053afa34253eb8d8d147388e4426e615bae4 (patch) | |
| tree | e1fb8b4303f1e36b8394e345d661313e1c7809a4 /drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | |
| parent | net/mlx5e: XDP, Support Enhanced Multi-Packet TX WQE (diff) | |
| download | kernel-qcow2-linux-6277053afa34253eb8d8d147388e4426e615bae4.tar.gz kernel-qcow2-linux-6277053afa34253eb8d8d147388e4426e615bae4.tar.xz kernel-qcow2-linux-6277053afa34253eb8d8d147388e4426e615bae4.zip | |
net/mlx5e: XDP, Add user control for XDP TX MPWQE feature
Add ethtool private flag 'xdp_tx_mpwqe' to control the feature
from userspace.
Feature is set ON by default, if supported.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.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 | 28 |
1 files changed, 28 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 6e101201dcbb..c9df08133718 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1672,12 +1672,40 @@ static int set_pflag_rx_no_csum_complete(struct net_device *netdev, bool enable) return 0; } +static int set_pflag_xdp_tx_mpwqe(struct net_device *netdev, bool enable) +{ + struct mlx5e_priv *priv = netdev_priv(netdev); + struct mlx5_core_dev *mdev = priv->mdev; + struct mlx5e_channels new_channels = {}; + int err; + + if (enable && !MLX5_CAP_ETH(mdev, enhanced_multi_pkt_send_wqe)) + return -EOPNOTSUPP; + + new_channels.params = priv->channels.params; + + MLX5E_SET_PFLAG(&new_channels.params, MLX5E_PFLAG_XDP_TX_MPWQE, enable); + + if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) { + priv->channels.params = new_channels.params; + return 0; + } + + err = mlx5e_open_channels(priv, &new_channels); + if (err) + return err; + + mlx5e_switch_priv_channels(priv, &new_channels, NULL); + return 0; +} + static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "rx_cqe_moder", set_pflag_rx_cqe_based_moder }, { "tx_cqe_moder", set_pflag_tx_cqe_based_moder }, { "rx_cqe_compress", set_pflag_rx_cqe_compress }, { "rx_striding_rq", set_pflag_rx_striding_rq }, { "rx_no_csum_complete", set_pflag_rx_no_csum_complete }, + { "xdp_tx_mpwqe", set_pflag_xdp_tx_mpwqe }, }; static int mlx5e_handle_pflag(struct net_device *netdev, |