[PATCH v2 1/2] ethdev: add new symmetric hash function

[Ori Kam]

Hi Xueming,

> -----Original Message-----
> From: Xueming(Steven) Li <xuemingl at nvidia.com>
> Sent: Sunday, August 27, 2023 11:18 AM
> 
> The new symmetric hash function swap src/dst L3 address and
> L4 ports automatically by sorting.
> 
> Signed-off-by: Xueming Li <xuemingl at nvidia.com>
> ---
>  lib/ethdev/rte_flow.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h
> index 2ebb76dbc0..4f4421ca50 100644
> --- a/lib/ethdev/rte_flow.h
> +++ b/lib/ethdev/rte_flow.h
> @@ -3196,6 +3196,13 @@ enum rte_eth_hash_function {
>  	 * src or dst address will xor with zero pair.
>  	 */
>  	RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ,
> +	/**
> +	 * Symmetric Toeplitz: L3 and L4 fields are sorted prior to
> +	 * the hash function.
> +	 *  If src_ip > dst_ip, swap src_ip and dst_ip.
> +	 *  If src_port > dst_port, swap src_port and dst_port.
> +	 */
> +	RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ_SORT,
>  	RTE_ETH_HASH_FUNCTION_MAX,
>  };
> 
> --
> 2.25.1

Acked-by: Ori Kam <orika at nvidia.com>
Best,
Ori