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From: "Wang, Yipeng1" <yipeng1.wang@intel.com>
To: "Power, Ciara" <ciara.power@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
CC: "Gobriel, Sameh" <sameh.gobriel@intel.com>
Thread-Topic: [PATCH v3 15/18] member: add checks for max SIMD bitwidth
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Date: Wed, 7 Oct 2020 00:51:46 +0000
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Subject: Re: [dpdk-dev] [PATCH v3 15/18] member: add checks for max SIMD
	bitwidth
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> -----Original Message-----
> From: Power, Ciara <ciara.power@intel.com>
> Sent: Wednesday, September 30, 2020 6:04 AM
> To: dev@dpdk.org
> Cc: Power, Ciara <ciara.power@intel.com>; Wang, Yipeng1
> <yipeng1.wang@intel.com>; Gobriel, Sameh <sameh.gobriel@intel.com>
> Subject: [PATCH v3 15/18] member: add checks for max SIMD bitwidth
>=20
> 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.
>=20
> Cc: Yipeng Wang <yipeng1.wang@intel.com>
> Cc: Sameh Gobriel <sameh.gobriel@intel.com>
>=20
> Signed-off-by: Ciara Power <ciara.power@intel.com>
> ---
>  lib/librte_member/rte_member_ht.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>=20
> diff --git a/lib/librte_member/rte_member_ht.c
> b/lib/librte_member/rte_member_ht.c
> index cbcd0d4407..71e3cf7b52 100644
> --- a/lib/librte_member/rte_member_ht.c
> +++ b/lib/librte_member/rte_member_ht.c
> @@ -113,7 +113,8 @@ rte_member_create_ht(struct rte_member_setsum
> *ss,
>  	}
>  #if defined(RTE_ARCH_X86)
>  	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) &&
> -			RTE_MEMBER_BUCKET_ENTRIES =3D=3D 16)
> +			RTE_MEMBER_BUCKET_ENTRIES =3D=3D 16 &&
> +			rte_get_max_simd_bitwidth() >=3D
> RTE_MAX_256_SIMD)
>  		ss->sig_cmp_fn =3D RTE_MEMBER_COMPARE_AVX2;
>  	else
>  #endif
> --
> 2.17.1
[Wang, Yipeng]=20
Acked-by: Yipeng Wang <yipeng1.wang@intel.com>