[PATCH] net/mlx5: fix GRE item translation for root table

[Gregory Etelson]

Flow items translations for the root tables reuses DV code.

DV GRE item translation did not initiate item mask for HWS template.

Fixes: cd4ab742064a ("net/mlx5: split flow item matcher and value translation")

Cc: stable at dpdk.org

Signed-off-by: Gregory Etelson <getelson at nvidia.com>
Acked-by: Suanming Mou <suanmingm at nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_dv.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 201e215e4b..7c3a1d537a 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -9829,22 +9829,23 @@ flow_dv_translate_item_gre(void *key, const struct rte_flow_item *item,
 	} gre_crks_rsvd0_ver_m, gre_crks_rsvd0_ver_v;
 	uint16_t protocol_m, protocol_v;
 
-	if (key_type & MLX5_SET_MATCHER_M)
+	if (key_type & MLX5_SET_MATCHER_M) {
 		MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, 0xff);
-	else
+		if (!gre_m)
+			gre_m = &rte_flow_item_gre_mask;
+		gre_v = gre_m;
+	} else {
 		MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
 			 IPPROTO_GRE);
-	if (!gre_v) {
-		gre_v = &empty_gre;
-		gre_m = &empty_gre;
-	} else {
-		if (!gre_m)
+		if (!gre_v) {
+			gre_v = &empty_gre;
+			gre_m = &empty_gre;
+		} else if (!gre_m) {
 			gre_m = &rte_flow_item_gre_mask;
+		}
+		if (key_type == MLX5_SET_MATCHER_HS_V)
+			gre_m = gre_v;
 	}
-	if (key_type & MLX5_SET_MATCHER_M)
-		gre_v = gre_m;
-	else if (key_type == MLX5_SET_MATCHER_HS_V)
-		gre_m = gre_v;
 	gre_crks_rsvd0_ver_m.value = rte_be_to_cpu_16(gre_m->c_rsvd0_ver);
 	gre_crks_rsvd0_ver_v.value = rte_be_to_cpu_16(gre_v->c_rsvd0_ver);
 	MLX5_SET(fte_match_set_misc, misc_v, gre_c_present,
-- 
2.43.0