patch 'net/mlx5: fix shared RSS destroy' has been queued to stable release 21.11.1

[Kevin Traynor]

On 10/03/2022 12:11, Kevin Traynor wrote:
> Hi,
> 
> FYI, your patch has been queued to stable release 21.11.1
> 
> Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
> It will be pushed if I get no objections before 03/14/22. So please
> shout if anyone has objections.
> 
> Also note that after the patch there's a diff of the upstream commit vs the
> patch applied to the branch. This will indicate if there was any rebasing
> needed to apply to the stable branch. If there were code changes for rebasing
> (ie: not only metadata diffs), please double check that the rebase was
> correctly done.
> 
Hi. Please check this rebase carefully, as the assignment may not take 
place now due to possible return before it.

Kevin.

> Queued patches are on a temporary branch at:
> https://github.com/kevintraynor/dpdk-stable
> 
> This queued commit can be viewed at:
> https://github.com/kevintraynor/dpdk-stable/commit/eebfb74c5155c08ff2a0e1b9a01f76f62e3b7382
> 
> Thanks.
> 
> Kevin
> 
> ---
>  From eebfb74c5155c08ff2a0e1b9a01f76f62e3b7382 Mon Sep 17 00:00:00 2001
> From: Rongwei Liu <rongweil at nvidia.com>
> Date: Wed, 2 Mar 2022 13:19:38 +0200
> Subject: [PATCH] net/mlx5: fix shared RSS destroy
> 
> [ upstream commit e1786fd53d7e5631c9ffb9b2fba0fd402bc8cf74 ]
> 
> 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: 8e61555657b2 ("net/mlx5: fix shared RSS and mark actions combination")
> 
> Signed-off-by: Rongwei Liu <rongweil at nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> ---
>   drivers/net/mlx5/mlx5_flow_dv.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
> index 7a5f17a8b7..a35fb3de4e 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -11103,4 +11103,5 @@ 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;
>   
> @@ -11117,4 +11118,5 @@ flow_dv_hrxq_prepare(struct rte_eth_dev *dev,
>   	hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
>   			      *hrxq_idx);
> +	rss_desc->shared_rss = shared_rss;
>   	return hrxq;
>   }
> @@ -18325,3 +18327,2 @@ const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops = {
>   
>   #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
> -