From 9a941117fb761dcfb4f698f1f67340484b781b90 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 3 Jan 2017 19:03:00 +0200 Subject: [PATCH] net/mlx5e: Maximize ip tunnel key usage on the TC offloading path Use more fields out of the tunnel key (e.g the tunnel source IP address) provided by upper layers for the route lookup done on the encap offload path. Signed-off-by: Or Gerlitz Reviewed-by: Hadar Hen Zion Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 477b2796c12e..3d0dbfb018ca 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -684,7 +684,6 @@ static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, struct net_device **out_dev, struct flowi4 *fl4, struct neighbour **out_n, - __be32 *saddr, int *out_ttl) { struct rtable *rt; @@ -714,7 +713,6 @@ static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, return -ENOMEM; *out_n = n; - *saddr = fl4->saddr; *out_dev = rt->dst.dev; return 0; @@ -763,13 +761,10 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, { int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); struct ip_tunnel_key *tun_key = &e->tun_info.key; + int encap_size, ttl, err; struct neighbour *n = NULL; struct flowi4 fl4 = {}; char *encap_header; - int encap_size; - __be32 saddr; - int ttl; - int err; encap_header = kzalloc(max_encap_size, GFP_KERNEL); if (!encap_header) @@ -784,10 +779,12 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, err = -EOPNOTSUPP; goto out; } + fl4.flowi4_tos = tun_key->tos; fl4.daddr = tun_key->u.ipv4.dst; + fl4.saddr = tun_key->u.ipv4.src; err = mlx5e_route_lookup_ipv4(priv, mirred_dev, out_dev, - &fl4, &n, &saddr, &ttl); + &fl4, &n, &ttl); if (err) goto out; @@ -806,8 +803,8 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, case MLX5_HEADER_TYPE_VXLAN: encap_size = gen_vxlan_header_ipv4(*out_dev, encap_header, e->h_dest, ttl, - tun_key->u.ipv4.dst, - saddr, tun_key->tp_dst, + fl4.daddr, + fl4.saddr, tun_key->tp_dst, tunnel_id_to_key32(tun_key->tun_id)); break; default: -- 2.20.1