diff options
| author | Eyal Perry <eyalpe@mellanox.com> | 2014-12-02 18:12:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-12-08 21:07:10 -0500 |
| commit | 947cbb0ac242096d60380952ec1a1761372cba66 (patch) | |
| tree | d22d19869b349a9abfc8f52dbbb9ae4c531ff7c6 /drivers/net/ethernet/mellanox/mlx4/en_rx.c | |
| parent | 892311f66f2411b813ca631009356891a0c2b0a1 (diff) | |
| download | op-kernel-dev-947cbb0ac242096d60380952ec1a1761372cba66.zip op-kernel-dev-947cbb0ac242096d60380952ec1a1761372cba66.tar.gz | |
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_rx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 946d352..4ca396e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -1223,7 +1223,19 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv) rss_context->flags = rss_mask; rss_context->hash_fn = MLX4_RSS_HASH_TOP; - memcpy(rss_context->rss_key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE); + if (priv->rss_hash_fn == ETH_RSS_HASH_XOR) { + rss_context->hash_fn = MLX4_RSS_HASH_XOR; + } else if (priv->rss_hash_fn == ETH_RSS_HASH_TOP) { + rss_context->hash_fn = MLX4_RSS_HASH_TOP; + memcpy(rss_context->rss_key, priv->rss_key, + MLX4_EN_RSS_KEY_SIZE); + netdev_rss_key_fill(rss_context->rss_key, + MLX4_EN_RSS_KEY_SIZE); + } else { + en_err(priv, "Unknown RSS hash function requested\n"); + err = -EINVAL; + goto indir_err; + } err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context, &rss_map->indir_qp, &rss_map->indir_state); if (err) |
