Re: [PATCH v5 2/7] crypto: SHA1 multibuffer crypto hash infrastructure

From: Tim Chen
Date: Fri Jul 25 2014 - 12:47:34 EST

On Fri, 2014-07-25 at 09:26 +0200, Peter Zijlstra wrote:
> On Tue, Jul 22, 2014 at 03:09:32PM -0700, Tim Chen wrote:
> > This patch introduces the multi-buffer crypto daemon which is responsible
> > for submitting crypto jobs in a work queue to the responsible multi-buffer
> > crypto algorithm. The idea of the multi-buffer algorihtm is to put
> > data streams from multiple jobs in a wide (AVX2) register and then
> > take advantage of SIMD instructions to do crypto computation on several
> > buffers simultaneously.
> >
> > The multi-buffer crypto daemon is also responsbile for flushing the
> > remaining buffers to complete the computation if no new buffers arrive
> > for a while.
> How is any of this SHA1 specific as the Subject says it is?

Yes, I should simply say multibuffer crypto hash infrastructure in the
subject line.


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