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Commit 1202d460 authored by Or Gerlitz's avatar Or Gerlitz Committed by David S. Miller
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net/mlx4: fix UDP RSS related settings 



Using RSS which takes into account UDP headers is controlled by
a module param, fix the setting of the HW RSS context to align
with that scheme. So far it was uncoditionally allowing hashing
on the UDP headers.

Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 876f6e67

drivers/net/ethernet/mellanox/mlx4/en_rx.c

+5 −3
Original line number Diff line number Diff line
@@ -840,7 +840,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv) 
	struct mlx4_rss_context *rss_context;

	void *ptr;

	u8 rss_mask = (MLX4_RSS_IPV4 | MLX4_RSS_TCP_IPV4 | MLX4_RSS_IPV6 |

		MLX4_RSS_TCP_IPV6 | MLX4_RSS_UDP_IPV4 | MLX4_RSS_UDP_IPV6);

			MLX4_RSS_TCP_IPV6);

	int i, qpn;

	int err = 0;

	int good_qps = 0;
@@ -883,14 +883,16 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv) 
	rss_context = ptr;

	rss_context->base_qpn = cpu_to_be32(ilog2(priv->rx_ring_num) << 24 |

					    (rss_map->base_qpn));

	if (priv->mdev->profile.udp_rss) {

		rss_mask |=  MLX4_RSS_UDP_IPV4 | MLX4_RSS_UDP_IPV6;

		rss_context->base_qpn_udp = rss_context->default_qpn;

	}

	rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);

	rss_context->flags = rss_mask;

	rss_context->hash_fn = MLX4_RSS_HASH_TOP;

	for (i = 0; i < 10; i++)

		rss_context->rss_key[i] = rsskey[i];



	if (priv->mdev->profile.udp_rss)

		rss_context->base_qpn_udp = rss_context->default_qpn;

	err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,

			       &rss_map->indir_qp, &rss_map->indir_state);

	if (err)