[dpdk-stable] [PATCH v5] doc: document a limitation for a meter with RSS action

[Li Zhang]

Thanks!
I will update it into patch v6 according to your comments.
Please take a look.

Regards,
Li Zhang

-----Original Message-----
From: Thomas Monjalon <thomas at monjalon.net> 
Sent: Tuesday, October 26, 2021 8:28 PM
To: Li Zhang <lizh at nvidia.com>; Raslan Darawsheh <rasland at nvidia.com>
Cc: Ori Kam <orika at nvidia.com>; Slava Ovsiienko <viacheslavo at nvidia.com>; Matan Azrad <matan at nvidia.com>; Shahaf Shuler <shahafs at nvidia.com>; Shun Hao <shunh at nvidia.com>; dev at dpdk.org; Roni Bar Yanai <roniba at nvidia.com>; stable at dpdk.org
Subject: Re: [PATCH v5] doc: document a limitation for a meter with RSS action

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The title should mention "mlx5 guide" as the scope.

26/10/2021 13:53, Li Zhang:
> A meter policy with RSS/Queue action is not supported when 
> ``dv_xmeta_en`` enabled.

The quotes are RST syntax.
Raslan, while merging, you can remove the quotes from the commit log.

>
> When ``dv_xmeta_en`` enabled in legacy creating flow, it will split 
> into two flows (one set_tag with jump flow and one RSS/queue action 
> flow).
> For meter policy as termination table, it cannot split flow and cannot 
> support when ``dv_xmeta_en`` enabled.
>
> Fixes: 51ec04d ("net/mlx5: connect meter policy to created flows")
> Cc: stable at dpdk.org
>
> Signed-off-by: Li Zhang <lizh at nvidia.com>
> Acked-by: Matan Azrad <matan at nvidia.com>
> ---
>  doc/guides/nics/mlx5.rst | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 
> 47709d93b3..cd28c04c1e 100644
> --- a/doc/guides/nics/mlx5.rst
> +++ b/doc/guides/nics/mlx5.rst
> @@ -435,6 +435,7 @@ Limitations
>       - yellow: QUEUE, RSS, PORT_ID, REPRESENTED_PORT, JUMP, DROP, MARK and SET_TAG.
>       - RED: must be DROP.
>    - Policy actions of RSS for green and yellow should have the same configuration except queues.
> +  - Policy with RSS/queue action is not supported when ``dv_xmeta_en`` enabled.
>    - meter profile packet mode is supported.
>    - meter profiles of RFC2697, RFC2698 and RFC4115 are supported.