[dpdk-dev] [PATCH] net/mlx5: support RSS expansion for IPv6 GRE

[Jack Min]

Currently RSS expansion only support IPv4 as GRE payload or
delivery protocol (RFC2784). IPv6 as GRE payload or delivery protocol
(RFC7676) is not supported.

This patch add RSS expansion for RFC7676 so PMD can expand flow item
correctly.

Fixes: f4b901a46aec ("net/mlx5: add flow GRE item")
Cc: stable at dpdk.org

Signed-off-by: Xiaoyu Min <jackmin at nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index d46fc333d1..de4e4a374a 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -499,7 +499,8 @@ static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
 			(MLX5_EXPANSION_OUTER_IPV6_UDP,
 			 MLX5_EXPANSION_OUTER_IPV6_TCP,
 			 MLX5_EXPANSION_IPV4,
-			 MLX5_EXPANSION_IPV6),
+			 MLX5_EXPANSION_IPV6,
+			 MLX5_EXPANSION_GRE),
 		.type = RTE_FLOW_ITEM_TYPE_IPV6,
 		.rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
 			ETH_RSS_NONFRAG_IPV6_OTHER,
@@ -527,7 +528,8 @@ static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
 		.type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
 	},
 	[MLX5_EXPANSION_GRE] = {
-		.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4),
+		.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
+						  MLX5_EXPANSION_IPV6),
 		.type = RTE_FLOW_ITEM_TYPE_GRE,
 	},
 	[MLX5_EXPANSION_MPLS] = {
-- 
2.30.1