diff options
| author | Eyal Perry <eyalpe@mellanox.com> | 2014-12-02 19:12:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-12-09 05:07:10 +0300 |
| commit | 947cbb0ac242096d60380952ec1a1761372cba66 (patch) | |
| tree | d22d19869b349a9abfc8f52dbbb9ae4c531ff7c6 /drivers/net/ethernet/mellanox/mlx4/en_netdev.c | |
| parent | 892311f66f2411b813ca631009356891a0c2b0a1 (diff) | |
| download | linux-947cbb0ac242096d60380952ec1a1761372cba66.tar.xz | |
net/mlx4_en: Support for configurable RSS hash function
The ConnectX HW is capable of using one of the following hash functions:
Toeplitz and an XOR hash function. This patch extends the implementation
of the mlx4_en driver set/get_rxfh callbacks to support getting and
setting the RSS hash function used by the device.
Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@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 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 1597fb07576c..dccf0e1f86be 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -2608,6 +2608,17 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0) dev->priv_flags |= IFF_UNICAST_FLT; + /* Setting a default hash function value */ + if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) { + priv->rss_hash_fn = ETH_RSS_HASH_TOP; + } else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) { + priv->rss_hash_fn = ETH_RSS_HASH_XOR; + } else { + en_warn(priv, + "No RSS hash capabilities exposed, using Toeplitz\n"); + priv->rss_hash_fn = ETH_RSS_HASH_TOP; + } + mdev->pndev[port] = dev; netif_carrier_off(dev); |