[dpdk-stable] [PATCH] net/mlx5: fix meter policy with RSS action

[Li Zhang]

When creating the meter sub-policy RSS rule,
the RSS descriptor was used before its update.
It also need update tunnel bit in RSS descriptor
after flow translate.

Use it only when it is updated.

Fixes: ec962bad14e ("net/mlx5: fix metering cleanup on stop")
Cc: stable at dpdk.org

Signed-off-by: Li Zhang <lizh at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index c5c767aaee..c5d4a95a8f 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -4613,7 +4613,6 @@ get_meter_sub_policy(struct rte_eth_dev *dev,
 			struct mlx5_flow dev_flow = {0};
 			struct mlx5_flow_handle dev_handle = { {0} };
 
-			rss_desc_v[i] = wks->rss_desc;
 			if (policy->is_rss) {
 				const void *rss_act =
 					policy->act_cnt[i].rss->conf;
@@ -4641,14 +4640,19 @@ get_meter_sub_policy(struct rte_eth_dev *dev,
 				if (flow_drv_translate(dev, &dev_flow, attr,
 						items, rss_actions, error))
 					goto exit;
+				rss_desc_v[i] = wks->rss_desc;
 				rss_desc_v[i].key_len = MLX5_RSS_HASH_KEY_LEN;
 				rss_desc_v[i].hash_fields =
 						dev_flow.hash_fields;
 				rss_desc_v[i].queue_num =
 						rss_desc_v[i].hash_fields ?
 						rss_desc_v[i].queue_num : 1;
+				rss_desc_v[i].tunnel =
+					!!(dev_flow.handle->layers &
+					MLX5_FLOW_LAYER_TUNNEL);
 			} else {
 				/* This is queue action. */
+				rss_desc_v[i] = wks->rss_desc;
 				rss_desc_v[i].key_len = 0;
 				rss_desc_v[i].hash_fields = 0;
 				rss_desc_v[i].queue =
-- 
2.27.0