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

[ Upstream commit 1ccef35 ] 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: bdd66ac ('net/mlx5e: Disallow TC offloading of unsupported match/action combinations') Signed-off-by: Jianbo Liu <[email protected]> Reviewed-by: Or Gerlitz <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
anthraxx · May 19, 2018 · 66fefca · 66fefca
1 parent cb9e5a0
commit 66fefca
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1387,7 +1387,8 @@ 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;
 	}