From 31c629c6f7689fb19656c384b5782a2414a2710b Mon Sep 17 00:00:00 2001 From: Adrien Mazarguil Date: Thu, 12 Oct 2017 14:19:42 +0200 Subject: [PATCH] net/mlx4: disable UDP support in RSS flow rules When part of the RSS hash calculation, UDP packets are discarded (not received on any queue) likely due to an issue with the kernel implementation. Temporarily disable UDP RSS support until this issue is resolved. Signed-off-by: Adrien Mazarguil Acked-by: Nelio Laranjeiro --- drivers/net/mlx4/mlx4_flow.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c index 2b60d761af..4c498f0bee 100644 --- a/drivers/net/mlx4/mlx4_flow.c +++ b/drivers/net/mlx4/mlx4_flow.c @@ -133,9 +133,11 @@ mlx4_conv_rss_hf(uint64_t rss_hf) [TCP] = (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_IPV6_TCP_EX), - [UDP] = (ETH_RSS_NONFRAG_IPV4_UDP | - ETH_RSS_NONFRAG_IPV6_UDP | - ETH_RSS_IPV6_UDP_EX), + /* + * UDP support is temporarily disabled due to an + * implementation issue in the kernel. + */ + [UDP] = 0, }; const uint64_t out[RTE_DIM(in)] = { [IPV4] = IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4, @@ -753,10 +755,8 @@ fill: .rss_key = mlx4_rss_hash_key_default, .rss_key_len = MLX4_RSS_HASH_KEY_SIZE, .rss_hf = (ETH_RSS_IPV4 | - ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_IPV6 | - ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_NONFRAG_IPV6_TCP), }; /* Sanity checks. */ -- 2.20.1