Hi,

> -----Original Message-----
> From: Dariusz Sosnowski <[email protected]>
> Sent: Saturday, November 15, 2025 3:27 AM
> To: Slava Ovsiienko <[email protected]>; Bing Zhao
> <[email protected]>; Ori Kam <[email protected]>; Suanming Mou
> <[email protected]>; Matan Azrad <[email protected]>
> Cc: [email protected]; Gregory Etelson <[email protected]>
> Subject: [PATCH] net/mlx5: improve error on completing table resize
> 
> If flow template table was created with resizable attribute, then
> completing table resize could fail for 2 user-related reasons:
> 
> - not all flow rules were yet updated to use the resized table,
> - resize was not started.
> 
> Both of these were reported with the same error message i.e., "cannot
> complete table resize".
> 
> Since PMD can distinguish these 2 cases, this patch improves the error
> reporting to report these 2 errors separately.
> 
> Also, this patch removes redundant __rte_unused on device parameter.
> 
> Signed-off-by: Dariusz Sosnowski <[email protected]>
> Acked-by: Gregory Etelson <[email protected]>
> ---
>  drivers/net/mlx5/mlx5_flow_hw.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_hw.c
> b/drivers/net/mlx5/mlx5_flow_hw.c index 208f50fbfd..8f3c84dec5 100644
> --- a/drivers/net/mlx5/mlx5_flow_hw.c
> +++ b/drivers/net/mlx5/mlx5_flow_hw.c
> @@ -15384,7 +15384,7 @@ flow_hw_table_resize(struct rte_eth_dev *dev,  }
> 
>  static int
> -flow_hw_table_resize_complete(__rte_unused struct rte_eth_dev *dev,
> +flow_hw_table_resize_complete(struct rte_eth_dev *dev,
>                             struct rte_flow_template_table *table,
>                             struct rte_flow_error *error)
>  {
> @@ -15398,12 +15398,16 @@ flow_hw_table_resize_complete(__rte_unused
> struct rte_eth_dev *dev,
>               return rte_flow_error_set(error, EINVAL,
>                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
>                                         table, "no resizable attribute");
> +     if (matcher_info->matcher == NULL)
> +             return rte_flow_error_set(error, EINVAL,
> +                                       RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
> +                                       table, "table resize was not 
> started");
>       matcher_refcnt = rte_atomic_load_explicit(&matcher_info->refcnt,
>                                                 rte_memory_order_relaxed);
> -     if (!matcher_info->matcher || matcher_refcnt)
> +     if (matcher_refcnt > 0)
>               return rte_flow_error_set(error, EBUSY,
>                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
> -                                       table, "cannot complete table 
> resize");
> +                                       table, "all rules not yet updated");
>       if (matcher_info->jump)
>               mlx5dr_action_destroy(matcher_info->jump);
>       ret = mlx5dr_matcher_destroy(matcher_info->matcher);
> --
> 2.39.5

Acked-by: Bing Zhao <[email protected]>

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