[PATCH] net/mlx5/hws: fix strict eCPRI matching

[Bing Zhao <bingz@nvidia.com>]

The shared flex-parser field helper adds implicit ESP protocol and
UDP port matches in strict mode. Typed eCPRI patterns also use this
helper, so Ethernet eCPRI rules acquire an unrelated IP protocol 50
condition and miss their packets. Untyped eCPRI patterns skip the
helper and continue to match.

Remove the ESP-specific conditions from the generic helper and drop
its unused item index argument. Keep the existing strict-mode ESP
matching in the dedicated ESP item converter unchanged.

Fixes: f2f75ffe14a5 ("net/mlx5/hws: fix ESP header match in strict mode")
Cc: stable@dpdk.org

Signed-off-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
 drivers/net/mlx5/hws/mlx5dr_definer.c | 33 +++------------------------
 1 file changed, 3 insertions(+), 30 deletions(-)

diff --git a/drivers/net/mlx5/hws/mlx5dr_definer.c b/drivers/net/mlx5/hws/mlx5dr_definer.c
index 7400b8f252..c56a53fd67 100644
--- a/drivers/net/mlx5/hws/mlx5dr_definer.c
+++ b/drivers/net/mlx5/hws/mlx5dr_definer.c
@@ -2548,8 +2548,7 @@ mlx5dr_definer_conv_item_meter_color(struct mlx5dr_definer_conv_data *cd,
 
 static struct mlx5dr_definer_fc *
 mlx5dr_definer_get_flex_parser_fc(struct mlx5dr_definer_conv_data *cd,
-				  uint32_t byte_off,
-				  int item_idx)
+				  uint32_t byte_off)
 {
 	uint32_t byte_off_fp7 = MLX5_BYTE_OFF(definer_hl, flex_parser.flex_parser_7);
 	uint32_t byte_off_fp0 = MLX5_BYTE_OFF(definer_hl, flex_parser.flex_parser_0);
@@ -2562,32 +2561,6 @@ mlx5dr_definer_get_flex_parser_fc(struct mlx5dr_definer_conv_data *cd,
 		return NULL;
 	}
 
-	/* To match on ESP we must match on ip_protocol and optionally on l4_dport */
-	if (!cd->relaxed) {
-		bool over_udp;
-
-		fc = &cd->fc[DR_CALC_FNAME(IP_PROTOCOL, false)];
-		over_udp = fc->tag_set == &mlx5dr_definer_udp_protocol_set;
-
-		if (over_udp) {
-			fc = &cd->fc[DR_CALC_FNAME(L4_DPORT, false)];
-			if (!fc->tag_set) {
-				fc->item_idx = item_idx;
-				fc->tag_mask_set = &mlx5dr_definer_ones_set;
-				fc->tag_set = &mlx5dr_definer_ipsec_udp_port_set;
-				DR_CALC_SET(fc, eth_l4, destination_port, false);
-			}
-		} else {
-			fc = &cd->fc[DR_CALC_FNAME(IP_PROTOCOL, false)];
-			if (!fc->tag_set) {
-				fc->item_idx = item_idx;
-				fc->tag_set = &mlx5dr_definer_ipsec_protocol_set;
-				fc->tag_mask_set = &mlx5dr_definer_ones_set;
-				DR_CALC_SET(fc, eth_l3, protocol_next_header, false);
-			}
-		}
-	}
-
 	idx = (byte_off_fp0 - byte_off) / (sizeof(uint32_t));
 	fname += (enum mlx5dr_definer_fname)idx;
 	fc = &cd->fc[fname];
@@ -2639,7 +2612,7 @@ mlx5dr_definer_conv_item_ipv6_routing_ext(struct mlx5dr_definer_conv_data *cd,
 
 	if (m->hdr.next_hdr || m->hdr.type || m->hdr.segments_left) {
 		byte_off = flow_hw_get_srh_flex_parser_byte_off_from_ctx(cd->ctx);
-		fc = mlx5dr_definer_get_flex_parser_fc(cd, byte_off, item_idx);
+		fc = mlx5dr_definer_get_flex_parser_fc(cd, byte_off);
 		if (!fc)
 			return rte_errno;
 
@@ -2761,7 +2734,7 @@ mlx5dr_definer_conv_item_ecpri(struct mlx5dr_definer_conv_data *cd,
 		if (!mask)
 			continue;
 		mask = htobe32(mask);
-		fc = mlx5dr_definer_get_flex_parser_fc(cd, byte_off[i], item_idx);
+		fc = mlx5dr_definer_get_flex_parser_fc(cd, byte_off[i]);
 		if (!fc)
 			return rte_errno;
 
-- 
2.43.0