superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

net/mlx5e: Add TC offloads matching on IPv6 encapsulation headers 

Enhance the parsing of offloaded TC rules to set HW matching on outer
IPv6 encapsulation headers. This effectively adds support for TC tunnel
key release action (decapsulation) of SRIOV offloads over IPv6 tunnels.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
pull/392/head
Or Gerlitz 2016-12-11 12:20:53 +02:00 committed by Saeed Mahameed
parent 073ff3c8e6
commit 19f4440141
1 changed files with 27 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View File

@ -298,6 +298,32 @@ vxlan_match_offload_err:
MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP);
} else if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
struct flow_dissector_key_ipv6_addrs *key =
skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS,
f->key);
struct flow_dissector_key_ipv6_addrs *mask =
skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS,
f->mask);
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
src_ipv4_src_ipv6.ipv6_layout.ipv6),
&mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6));
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
src_ipv4_src_ipv6.ipv6_layout.ipv6),
&key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6));
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
&mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6));
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
&key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6));
MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6);
}
/* Enforce DMAC when offloading incoming tunneled flows.
@ -358,12 +384,10 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
f->key);
switch (key->addr_type) {
case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
if (parse_tunnel_attr(priv, spec, f))
return -EOPNOTSUPP;
break;
case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
netdev_warn(priv->netdev,
"IPv6 tunnel decap offload isn't supported\n");
default:
return -EOPNOTSUPP;
}