netdev - Re: [PATCH 2/2] packet: Add fanout support.

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Date:	Tue, 05 Jul 2011 00:50:11 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	victor@...iniac.net, netdev@...r.kernel.org
Subject: Re: [PATCH 2/2] packet: Add fanout support.

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 05 Jul 2011 09:00:14 +0200

> Le mardi 05 juillet 2011 à 08:56 +0200, Victor Julien a écrit :
> 
>> Is this still also true for IP fragments?
>> 
> 
> This point was already raised. IP fragments have rxhash = 0, obviously,
> since we dont have full information (source / destination ports for
> example)

I will fix this.

I will add an option to the fanout, as a flag bit to the setsockopt,
that will cause the fanout to act as a ip_defrag() agent and rehash
the packet once all the fragments arrive.

Since this will operate internally on the clones passed to AF_PACKET,
it will not have any effect on the original packets traversing through
the machine.
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