From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH v2] ipv4: Early TCP socket demux.
Date: Wed, 20 Jun 2012 07:59:00 +0200
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To: David Miller <davem@davemloft.net>
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On Tue, 2012-06-19 at 21:46 -0700, David Miller wrote:

> These numbers can be decreased further, because since we're already
> looking at the TCP header we can pre-cook the TCP control block in the
> SKB and skip much of the stuff that tcp_v4_rcv() does since we've done
> it already in the early demux code.

It could be done at GRO level and remove one another demux.

As routers probably have no use of GRO, no need of additional knob.