From: Andi Kleen <ak-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: "Nicholas A. Bellinger" <nab-IzHhD5pYlfBP7FQvKIMDCQ@public.gmane.org>
Cc: linux-kernel
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
netdev <netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Bernard Metzler <BMT-OA+xvbQnYDHMbYB6QlFGEg@public.gmane.org>,
David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
Matthew Wilcox <willy-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 2/2] siw: Add support for CRC32C offload instruction using libcrypto crc32c-intel
Date: Wed, 22 Sep 2010 22:39:39 +0200 [thread overview]
Message-ID: <4C9A698B.90806@linux.intel.com> (raw)
In-Reply-To: <1285187425-10950-1-git-send-email-nab-IzHhD5pYlfBP7FQvKIMDCQ@public.gmane.org>
On 9/22/2010 10:30 PM, Nicholas A. Bellinger wrote:
> From: Nicholas Bellinger<nab-IzHhD5pYlfBP7FQvKIMDCQ@public.gmane.org>
>
> This patch updates siw_create_qp() to check for the CONFIG_X86 + cpu_has_xmm4_2
> dependent use of the CRC32C instruction offload using libcrypto crc32c-intel.ko.
> This patch will by default use crc32c-intel when available, and fall back to the
> legacy slicing by 1x libcrypto crc32c.ko code when the instruction offload is not
> availabe.
I don't think every caller should handle checks like this. The crypto
layer should load the right driver
instead and provide the best driver under a generic algorithm name.
Need CPUID module auto probing. I have an older patch that needs some fixes.
-Andi
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next prev parent reply other threads:[~2010-09-22 20:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-22 20:30 [PATCH 2/2] siw: Add support for CRC32C offload instruction using libcrypto crc32c-intel Nicholas A. Bellinger
[not found] ` <1285187425-10950-1-git-send-email-nab-IzHhD5pYlfBP7FQvKIMDCQ@public.gmane.org>
2010-09-22 20:39 ` Andi Kleen [this message]
2010-09-22 20:38 ` Nicholas A. Bellinger
[not found] ` <1285187901.1849.85.camel-Y1+j5t8j3WgjMeEPmliV8E/sVC8ogwMJ@public.gmane.org>
2010-09-22 20:59 ` Jason Gunthorpe
2010-09-22 21:00 ` Nicholas A. Bellinger
2010-09-22 21:18 ` Jason Gunthorpe
2010-09-22 21:38 ` Nicholas A. Bellinger
[not found] ` <1285191511.1849.126.camel-Y1+j5t8j3WgjMeEPmliV8E/sVC8ogwMJ@public.gmane.org>
2010-09-22 22:06 ` Jason Gunthorpe
2010-09-22 22:36 ` Nicholas A. Bellinger
2010-09-23 15:31 ` Bernard Metzler
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