linux-kernel - Re: [PATCH] x86: Run checksumming in parallel accross multiple alu's

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Message-ID: <20131015160236.GG2592@two.firstfloor.org>
Date:	Tue, 15 Oct 2013 18:02:36 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Sébastien Dugué <sebastien.dugue@...l.net>,
	Andi Kleen <andi@...stfloor.org>,
	Neil Horman <nhorman@...driver.com>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: Re: [PATCH] x86: Run checksumming in parallel accross multiple
 alu's

> I get the csum_partial() if disabling prequeue.

At least in the ipoib case i would consider that a misconfiguration.

"don't do this if it hurts"

There may be more such problems.

-Andi
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