[PATCH v5 39/40] app/proc-info: support querying RSS hash algorithm

[fengchengwen]

Suggest add one new API for get hash_algo_name. e.g. rte_eth_get_rss_algo_name()

On 2023/10/11 17:28, Jie Hai wrote:
> Display RSS hash algorithm with command show-port as below.
>   - RSS info
> 	  -- hash algorithm : toeplitz
> 
> Signed-off-by: Jie Hai <haijie1 at huawei.com>
> Signed-off-by: Dongdong Liu <liudongdong3 at huawei.com>
> Acked-by: Reshma Pattan <reshma.pattan at intel.com>
> ---
>  app/proc-info/main.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/app/proc-info/main.c b/app/proc-info/main.c
> index e98352118db1..43f264848a6f 100644
> --- a/app/proc-info/main.c
> +++ b/app/proc-info/main.c
> @@ -153,6 +153,14 @@ static struct desc_param rx_desc_param;
>  static struct desc_param tx_desc_param;
>  
>  #define RSS_HASH_KEY_SIZE 64
> +static const char * const rss_hash_algos[] = {
> +	[RTE_ETH_HASH_FUNCTION_SIMPLE_XOR] = "simple_xor",
> +	[RTE_ETH_HASH_FUNCTION_TOEPLITZ] = "toeplitz",
> +	[RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ] = "symmetric_toeplitz",
> +	[RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ_SORT] = "symmetric_toeplitz_sort",
> +	[RTE_ETH_HASH_FUNCTION_DEFAULT] = "default",
> +	[RTE_ETH_HASH_FUNCTION_MAX] = "unknown"
> +};
>  
>  /* display usage */
>  static void
> @@ -1186,6 +1194,8 @@ show_port(void)
>  				printf("%02x", rss_conf.rss_key[k]);
>  			printf("\n\t  -- hash function : 0x%"PRIx64"\n",
>  					rss_conf.rss_hf);
> +			printf("\t  -- hash algorithm : %s\n",
> +				rss_hash_algos[rss_conf.algorithm]);
>  		}
>  
>  #ifdef RTE_LIB_SECURITY
>