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net/mlx5e: Allow offloading ipv4 header re-write for icmp 

For ICMPv4, the checksum is calculated from the ICMP headers and data.
Since the ICMPv4 checksum doesn't cover the IP header, we can allow to
do L3 header re-write for this protocol.

Fixes: bdd66ac0ae ('net/mlx5e: Disallow TC offloading of unsupported match/action combinations')
Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Jianbo Liu 2018-03-27 09:22:16 +00:00 committed by Saeed Mahameed
parent 25eb0ea717
commit 1ccef350db
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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@ -1864,7 +1864,8 @@ static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
}
ip_proto = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol);
if (modify_ip_header && ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP) {
if (modify_ip_header && ip_proto != IPPROTO_TCP &&
ip_proto != IPPROTO_UDP && ip_proto != IPPROTO_ICMP) {
pr_info("can't offload re-write of ip proto %d\n", ip_proto);
return false;
}