[dpdk-dev] [PATCH] net/mlx5: fix shared RSS translation and cleanup

[Raslan Darawsheh]

Hi,

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Dekel Peled
> Sent: Monday, February 1, 2021 11:29 AM
> To: Matan Azrad <matan at nvidia.com>; Shahaf Shuler
> <shahafs at nvidia.com>; Slava Ovsiienko <viacheslavo at nvidia.com>
> Cc: dev at dpdk.org; stable at dpdk.org
> Subject: [dpdk-dev] [PATCH] net/mlx5: fix shared RSS translation and
> cleanup
> 
> This patch includes several updates of the shared RSS action:
> 
> (1)
> The shared RSS action, introduced recently, uses existing definitions
> of the regular RSS action.
> The new defined value MLX5_RSS_HASH_IPV4_TCP uses existing definition
> IBV_RX_HASH_SRC_PORT_TCP twice, instead of using
> IBV_RX_HASH_SRC_PORT_TCP and IBV_RX_HASH_DST_PORT_TCP.
>             ---                          ---
> The same is true for IPv4-UDP, IPv6-TCP, IPv6-UDP.
> As result, a shared RSS action with L4 type is specified as src-only.
> Flow rule using such shared action, while specifying L4 item in flow
> pattern, will fail to create.
> This patch updates the new definitions, to use the existing values
> correctly.
> 
> (2)
> On shared RSS action destroy, in function __flow_dv_action_rss_release,
> the indirection table shared_rss->ind_tbl was released before
> shared_rss->refcnt was checked.
> This order is incorrect, since the indirection table should be
> released only when the shared RSS action is destroyed.
> This patch puts release function calls in correct order.
> 
> (3)
> Variables declared of type "struct mlx5_shared_action_rss" are named
> "shared_rss", "action", and "shared_action".
> To improve code readability, this patch renames all to "shared_rss".
> 
> Fixes: d7cfcddded61 ("net/mlx5: translate shared action for RSS action")
> Fixes: d2046c09aa64 ("net/mlx5: support shared action for RSS")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Dekel Peled <dekelp at nvidia.com>
> Acked-by: Matan Azrad <matan at nvidia.com>

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh