netdev - Re: [PATCH 1/2 v2] net: Add function to get SW rxhash

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Message-ID: <1380068257.3165.130.camel@edumazet-glaptop>
Date:	Tue, 24 Sep 2013 17:17:37 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Tom Herbert <therbert@...gle.com>
Cc:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH 1/2 v2] net: Add function to get SW rxhash

On Tue, 2013-09-24 at 15:16 -0700, Tom Herbert wrote:
>  If it's a big win for conntrack to process packets on same CPUs for
> both directions, we should program the RFS table to accomplish that.

conntrack uses no userland code, no user thread, so what are you going
to put in RFS table ?

Right now, RPS can be used for proper steering, you only have to
"ethtool -K eth{x} rxhash off"

[ Of course, this is becoming less a concern with multiqueue nics ]


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