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From: "Rong, Leyi" <leyi.rong@intel.com>
To: "Zhang, Qi Z" <qi.z.zhang@intel.com>
Cc: "Yigit, Ferruh" <ferruh.yigit@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2] doc: fix some statements for ice vector PMD
Date: Thu, 17 Dec 2020 02:13:15 +0000
Message-ID: <SN6PR11MB2621D8CD378E0561AA90E388ECC40@SN6PR11MB2621.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20201216002158.309396-1-qi.z.zhang@intel.com>


> -----Original Message-----
> From: Zhang, Qi Z <qi.z.zhang@intel.com>
> Sent: Wednesday, December 16, 2020 8:22 AM
> To: Rong, Leyi <leyi.rong@intel.com>
> Cc: Yigit, Ferruh <ferruh.yigit@intel.com>; dev@dpdk.org; Zhang, Qi Z
> <qi.z.zhang@intel.com>; stable@dpdk.org
> Subject: [PATCH v2] doc: fix some statements for ice vector PMD
> 
> 1. Add descriptions for how to select avx512 datapath.
> 2. Add explanation for "P" in ice.ini.
> 
> Fixes: 7f85d5ebcfe1 ("net/ice: add AVX512 vector path")
> Fixes: 271cc8c5028a ("doc: update ice features list")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> ---
> 
> v2:
> fix statement for force-max-simd-bitwidth which is an EAL argument but not
> devarg.
> 
>  doc/guides/nics/ice.rst | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst index
> a0887f129f..2a4439a63a 100644
> --- a/doc/guides/nics/ice.rst
> +++ b/doc/guides/nics/ice.rst
> @@ -211,9 +211,12 @@ are chosen based on 2 conditions.
>  - ``CPU``
>    On the X86 platform, the driver checks if the CPU supports AVX2.
>    If it's supported, AVX2 paths will be chosen. If not, SSE is chosen.
> +  If the CPU supports AVX512 and EAL argument
> + ``force-max-simd-bitwidth``  is set to 512, AVX512 paths will be chosen.
> 
>  - ``Offload features``
> -  The supported HW offload features are described in the document ice_vec.ini.
> +  The supported HW offload features are described in the document
> + ice.ini,  A value "P" means the offload feature is not supported by vector path.
>    If any not supported features are used, ICE vector PMD is disabled and the
>    normal paths are chosen.
> 
> --
> 2.26.2

Acked-by: Leyi Rong <leyi.rong@intel.com>

Best Regards,
Leyi Rong

  reply	other threads:[~2020-12-17  2:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-16  0:21 Qi Zhang
2020-12-17  2:13 ` Rong, Leyi [this message]
2020-12-23  9:57   ` Zhang, Qi Z
  -- strict thread matches above, loose matches on Subject: below --
2020-12-16  0:21 Qi Zhang

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