linux-kernel - Re: [PATCH 0/3 v2] Optimize CRC32C calculation using PCLMULQDQ in crc32c-intel module

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Message-ID: <50651163.5050101@zytor.com>
Date:	Thu, 27 Sep 2012 19:54:27 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
CC:	Herbert Xu <herbert@...dor.hengli.com.au>,
	"David S. Miller" <davem@...emloft.net>,
	Fengguang Wu <fengguang.wu@...el.com>,
	David Cote <david.m.cote@...el.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Chaohong Guo <chaohong.guo@...el.com>,
	Austin Zhang <austin_zhang@...ux.intel.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org,
	James Guilford <james.guilford@...el.com>,
	Wajdi Feghali <wajdi.k.feghali@...el.com>,
	Min Li <min.a.li@...el.com>
Subject: Re: [PATCH 0/3 v2] Optimize CRC32C calculation using PCLMULQDQ in
 crc32c-intel module

On 09/27/2012 03:44 PM, Tim Chen wrote:
> Version 2
> This version of the patch series fixes compilation errors for
> 32 bit x86 targets.
>
> Version 1
> This patch series optimized CRC32C calculations with PCLMULQDQ
> instruction for crc32c-intel module.  It speeds up the original
> implementation by 1.6x for 1K buffer and by 3x for buffer 4k or
> more.  The tcrypt module was enhanced for doing speed test
> on crc32c calculations.
>

Herbert - you are handling this one, right?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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