diff options
| author | Rana Shahout <ranas@mellanox.com> | 2016-06-21 12:43:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-23 22:18:50 +0300 |
| commit | af7d5185263133f859dd4f35d45594deef9db854 (patch) | |
| tree | 4edcdca6cdf632e01097d13e72646b116ee375b9 /drivers/net/ethernet/mellanox/mlx4/en_netdev.c | |
| parent | 51dca8a1cfd917e1b53b118ddd3fbe5eb1b6a9a8 (diff) | |
| download | linux-af7d5185263133f859dd4f35d45594deef9db854.tar.xz | |
net/mlx4_en: Add DCB PFC support through CEE netlink commands
This patch adds support for reading and updating priority flow
control (PFC) attributes in the driver via netlink.
Signed-off-by: Rana Shahout <ranas@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_netdev.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 8e318d21321f..d42083a8a104 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -67,6 +67,17 @@ int mlx4_en_setup_tc(struct net_device *dev, u8 up) offset += priv->num_tx_rings_p_up; } +#ifdef CONFIG_MLX4_EN_DCB + if (!mlx4_is_slave(priv->mdev->dev)) { + if (up) { + priv->flags |= MLX4_EN_FLAG_DCB_ENABLED; + } else { + priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED; + priv->cee_params.dcb_cfg.pfc_state = false; + } + } +#endif /* CONFIG_MLX4_EN_DCB */ + return 0; } @@ -2815,6 +2826,9 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, struct mlx4_en_priv *priv; int i; int err; +#ifdef CONFIG_MLX4_EN_DCB + struct tc_configuration *tc; +#endif dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), MAX_TX_RINGS, MAX_RX_RINGS); @@ -2881,6 +2895,17 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, priv->msg_enable = MLX4_EN_MSG_LEVEL; #ifdef CONFIG_MLX4_EN_DCB if (!mlx4_is_slave(priv->mdev->dev)) { + priv->cee_params.dcbx_cap = DCB_CAP_DCBX_VER_CEE | + DCB_CAP_DCBX_HOST | + DCB_CAP_DCBX_VER_IEEE; + priv->flags |= MLX4_EN_DCB_ENABLED; + priv->cee_params.dcb_cfg.pfc_state = false; + + for (i = 0; i < MLX4_EN_NUM_UP; i++) { + tc = &priv->cee_params.dcb_cfg.tc_config[i]; + tc->dcb_pfc = pfc_disabled; + } + if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) { dev->dcbnl_ops = &mlx4_en_dcbnl_ops; } else { |