[dpdk-dev] [PATCH v3 14/18] distributor: add checks for max SIMD bitwidth

[David Hunt]

Hi Ciara,

On 30/9/2020 2:04 PM, Ciara Power wrote:
> When choosing a vector path to take, an extra condition must be
> satisfied to ensure the max SIMD bitwidth allows for the CPU enabled
> path.
>
> Cc: David Hunt <david.hunt at intel.com>
>
> Signed-off-by: Ciara Power <ciara.power at intel.com>
> ---
>   lib/librte_distributor/rte_distributor.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/lib/librte_distributor/rte_distributor.c b/lib/librte_distributor/rte_distributor.c
> index 1c047f065a..9f0a9b1d48 100644
> --- a/lib/librte_distributor/rte_distributor.c
> +++ b/lib/librte_distributor/rte_distributor.c
> @@ -636,7 +636,8 @@ rte_distributor_create(const char *name,
>   
>   	d->dist_match_fn = RTE_DIST_MATCH_SCALAR;
>   #if defined(RTE_ARCH_X86)
> -	d->dist_match_fn = RTE_DIST_MATCH_VECTOR;
> +	if (rte_get_max_simd_bitwidth() >= RTE_MAX_128_SIMD)
> +		d->dist_match_fn = RTE_DIST_MATCH_VECTOR;
>   #endif
>   
>   	/*


Acked-by: David Hunt <david.hunt at intel.com>