Re: [dpdk-dev] [PATCH 1/1] ethdev: rename a flow shared action error code

[Tal Shnaiderman <talshn@nvidia.com>]

> Subject: [PATCH 1/1] ethdev: rename a flow shared action error code
> 
> External email: Use caution opening links or attachments
> 
> 
> In the experimental function rte_flow_shared_action_destroy() introduced
> in DPDK 20.11, the errno ETOOMANYREFS was used.
> This errno is not always available on Windows, so it is preferred using EBUSY
> instead.
> 
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> ---
>  drivers/net/mlx5/mlx5_flow_dv.c | 4 ++--
>  lib/librte_ethdev/rte_flow.h    | 3 +--
>  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> b/drivers/net/mlx5/mlx5_flow_dv.c index 62d9ca9ffb..51cc41face 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -11436,14 +11436,14 @@ __flow_dv_action_rss_release(struct
> rte_eth_dev *dev, uint32_t idx,
>                                           "invalid shared action");
>         remaining = __flow_dv_action_rss_hrxqs_release(dev, shared_rss);
>         if (remaining)
> -               return rte_flow_error_set(error, ETOOMANYREFS,
> +               return rte_flow_error_set(error, EBUSY,
>                                           RTE_FLOW_ERROR_TYPE_ACTION,
>                                           NULL,
>                                           "shared rss hrxq has references");
>         if (!__atomic_compare_exchange_n(&shared_rss->refcnt, &old_refcnt,
>                                          0, 0, __ATOMIC_ACQUIRE,
>                                          __ATOMIC_RELAXED))
> -               return rte_flow_error_set(error, ETOOMANYREFS,
> +               return rte_flow_error_set(error, EBUSY,
>                                           RTE_FLOW_ERROR_TYPE_ACTION,
>                                           NULL,
>                                           "shared rss has references"); diff --git
> a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h index
> 8b970ba0b7..b98334c5c4 100644
> --- a/lib/librte_ethdev/rte_flow.h
> +++ b/lib/librte_ethdev/rte_flow.h
> @@ -3549,8 +3549,7 @@ rte_flow_shared_action_create(uint16_t port_id,
>   *   - (-ENOSYS) if underlying device does not support this functionality.
>   *   - (-EIO) if underlying device is removed.
>   *   - (-ENOENT) if action pointed by *action* handle was not found.
> - *   - (-ETOOMANYREFS) if action pointed by *action* handle still used by
> one or
> - *     more rules
> + *   - (-EBUSY) if action pointed by *action* handle still used by some rules
>   *   rte_errno is also set.
>   */
>  __rte_experimental
> --
> 2.28.0

Reviewed-by: Tal Shnaiderman <talshn@nvidia.com>
Tested-by: Tal Shnaiderman <talshn@nvidia.com>