[dpdk-dev] [PATCH] mlx5: fix RETA table size

[Adrien Mazarguil]

Yaacov,

On Wed, Mar 30, 2016 at 06:27:19PM +0300, Yaacov Hazan wrote:
> Change RETA table size to use 256 entries for better performance.
> 
> Fixes: ebb30ec64a68 ("mlx5: increase RETA table size")
> 
> Signed-off-by: Yaacov Hazan <yaacovh at mellanox.com>
> ---
>  drivers/net/mlx5/mlx5_defs.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
> index 195440c..09207d9 100644
> --- a/drivers/net/mlx5/mlx5_defs.h
> +++ b/drivers/net/mlx5/mlx5_defs.h
> @@ -52,7 +52,7 @@
>  #define MLX5_PMD_TX_PER_COMP_REQ 64
>  
>  /* RSS Indirection table size. */
> -#define RSS_INDIRECTION_TABLE_SIZE 512
> +#define RSS_INDIRECTION_TABLE_SIZE 256

Can you describe how using a smaller indirection table size improves
performance? Thanks.

-- 
Adrien Mazarguil
6WIND