[PATCH 2/8] net/mlx4: fix UDP RSS related settings
From: Yevgeny Petrilin <hidden>
Date: 2011-11-21 11:19:15
Subsystem:
mellanox ethernet driver (mlx4_en), mellanox mlx4 core vpi driver, networking drivers, the rest · Maintainers:
Tariq Toukan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Or Gerlitz <redacted> 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: Or Gerlitz <redacted> --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 86cb300..3c24e16 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c@@ -836,7 +836,7 @@ 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;
@@ -879,14 +879,16 @@ 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)
--
1.7.7