[PATCH net] mlx4: TCP/UDP packets have L4 hash
flat view
STALE4124d
From: Eric Dumazet <hidden>
Date: 2015-07-02 11:24:48
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: Eric Dumazet <redacted> Mellanox driver has the knowledge if rxhash is a L4 hash, if it receives a non fragmented TCP or UDP frame and NETIF_F_RXCSUM is enabled on netdev. ip_summed value is CHECKSUM_UNNECESSARY in this case. Signed-off-by: Eric Dumazet <redacted> Cc: Amir Vadai <redacted> Cc: Ido Shamay <redacted> --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 7a4f20bb7fcb..12c65e1ad6a9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c@@ -917,7 +917,9 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud if (dev->features & NETIF_F_RXHASH) skb_set_hash(gro_skb, be32_to_cpu(cqe->immed_rss_invalid), - PKT_HASH_TYPE_L3); + (ip_summed == CHECKSUM_UNNECESSARY) ? + PKT_HASH_TYPE_L4 : + PKT_HASH_TYPE_L3); skb_record_rx_queue(gro_skb, cq->ring); skb_mark_napi_id(gro_skb, &cq->napi);
@@ -963,7 +965,9 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud if (dev->features & NETIF_F_RXHASH) skb_set_hash(skb, be32_to_cpu(cqe->immed_rss_invalid), - PKT_HASH_TYPE_L3); + (ip_summed == CHECKSUM_UNNECESSARY) ? + PKT_HASH_TYPE_L4 : + PKT_HASH_TYPE_L3); if ((be32_to_cpu(cqe->vlan_my_qpn) & MLX4_CQE_VLAN_PRESENT_MASK) &&