netdev - Re: [PATCH net-next v2 0/2] ovs: introduce arch-specific fast hashing improvements

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Date:	Thu, 12 Dec 2013 16:12:41 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	ffusco@...hat.com
Cc:	jesse@...ira.com, netdev@...r.kernel.org, dev@...nvswitch.org,
	dborkman@...hat.com
Subject: Re: [PATCH net-next v2 0/2] ovs: introduce arch-specific fast
 hashing improvements

From: Francesco Fusco <ffusco@...hat.com>
Date: Thu, 12 Dec 2013 16:09:04 +0100

> We are introducing a fast hash function (see patch1) that can be
> used in the context of OpenVSwitch to reduce the hashing footprint
> (patch2). For details, please see individual patches!

No objections from my side, I'll let the x86 folks get a chance to
review this.  I can add this optimization on sparc64 chips that have
the crc instructions too.

I think we'll need to add implementations hash_3words, hash_2words,
and hash_1word when we try to take advantage of this in the networking
more generally.
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