From 48c9b36155a1de1d85b7980cebeb3323dd241597 Mon Sep 17 00:00:00 2001 From: Lior Margalit Date: Wed, 16 Jun 2021 10:01:18 +0300 Subject: [PATCH] net/mlx5: fix IPIP multi-tunnel validation [ upstream commit fa06906a48ee9d31a22f58a05f72c7bd4b737459 ] A flow rule must not include multiple tunnel layers. An attempt to create such a rule, for example: testpmd> flow create .../ vxlan / eth / ipv4 proto is 4 / end results in an unclear error. In the current implementation there is a check for multiple IPIP tunnels, but not for combination of IPIP and a different kind of tunnel, such as VXLAN. The fix is to enhance the above check to use MLX5_FLOW_LAYER_TUNNEL that consists of all the tunnel masks. The error message will be "multiple tunnel not supported". Fixes: 5e33bebdd8d3 ("net/mlx5: support IP-in-IP tunnel") Signed-off-by: Lior Margalit Acked-by: Ori Kam Acked-by: Matan Azrad --- drivers/net/mlx5/mlx5_flow.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index c5fc1ee6b4..048823a50b 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -2044,7 +2044,7 @@ mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item, RTE_FLOW_ERROR_TYPE_ITEM, item, "IPv4 cannot follow L2/VLAN layer " "which ether type is not IPv4"); - if (item_flags & MLX5_FLOW_LAYER_IPIP) { + if (item_flags & MLX5_FLOW_LAYER_TUNNEL) { if (mask && spec) next_proto = mask->hdr.next_proto_id & spec->hdr.next_proto_id; @@ -2152,7 +2152,7 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item, "which ether type is not IPv6"); if (mask && mask->hdr.proto == UINT8_MAX && spec) next_proto = spec->hdr.proto; - if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) { + if (item_flags & MLX5_FLOW_LAYER_TUNNEL) { if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,