net/mlx5: fix shared RSS destroy

[ upstream commit e1786fd ]

When both shared and non-shared RSS actions are present in single
flow rule shared RSS index is unset by mistake.

For example:
1. flow indirect_action 0 create action_id 3 ingress action RSS ...
2. set sample_actions 0 mark id 43690 / queue index 0 / end
3. flow create 0 ingress group 107 pattern eth / sample ratio 2
   index 0  / indirect 3 / end

PMD translates the indirect action to a shared RSS description at first.
In the split prefix flow, RSS->shared_RSS is unset when translating
sample queue action, the subfix flow will treat the RSS as non-shared.

Fixes: 8e61555 ("net/mlx5: fix shared RSS and mark actions combination")

Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

drivers/net/mlx5/mlx5_flow_dv.c

@@ -11102,6 +11102,7 @@ flow_dv_hrxq_prepare(struct rte_eth_dev *dev,
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 	struct mlx5_flow_handle *dh = dev_flow->handle;
+	uint32_t shared_rss = rss_desc->shared_rss;
 	struct mlx5_hrxq *hrxq;
 
 	MLX5_ASSERT(rss_desc->queue_num);
@@ -11116,6 +11117,7 @@ flow_dv_hrxq_prepare(struct rte_eth_dev *dev,
 		return NULL;
 	hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
 			      *hrxq_idx);
+	rss_desc->shared_rss = shared_rss;
 	return hrxq;
 }
 
@@ -18324,4 +18326,3 @@ const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops = {
 };
 
 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
-