From: Ben Hutchings <bhutchings@solarflare.com>
To: Jarek Poplawski <jarkao2@gmail.com>
Cc: Stephen Hemminger <stephen.hemminger@vyatta.com>,
Kieran Mansley <kmansley@solarflare.com>,
Stephen Hemminger <shemminger@vyatta.com>,
netdev@vger.kernel.org
Subject: Re: LRO/GSO interaction when packets are forwarded
Date: Wed, 23 Apr 2008 11:07:04 +0100 [thread overview]
Message-ID: <20080423100702.GS21637@solarflare.com> (raw)
In-Reply-To: <20080423061538.GB3946@ff.dom.local>
Jarek Poplawski wrote:
> On Wed, Apr 23, 2008 at 06:00:18AM +0000, Jarek Poplawski wrote:
> > On 23-04-2008 01:01, Stephen Hemminger wrote:
> > ...
> > >>>> First off, no hardware should ever do LRO on non-local packets. If the
> > >>>> hardware isn't smart enough to do this, I guess the bridge code to have
> > >>>> an API to turn it off. IP should also turn it off if ip_forwarding
> > >>>> is enabled on that device.
> >
> > Could you explain this more? (I can't see any obvious reason why
> > forwarding between local networks should differ here from bridging?)
>
> ...and the second question: is only ip_forwarding flag checking right
> way to disable something destined for local packets?
"Non-local" here simply means destined for another host. It doesn't
matter whether that host is on the same LAN or not.
Ben.
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
next prev parent reply other threads:[~2008-04-23 10:07 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-07 14:09 LRO/GSO interaction when packets are forwarded Kieran Mansley
2008-03-07 16:25 ` Stephen Hemminger
2008-03-07 17:06 ` Kieran Mansley
2008-03-07 21:43 ` [PATCH] ethtool: command line support for lro Stephen Hemminger
2008-03-10 18:07 ` Ben Hutchings
2008-03-10 18:29 ` Stephen Hemminger
2008-03-10 18:50 ` Ben Hutchings
2008-04-17 12:11 ` Ben Hutchings
2008-04-30 18:36 ` Kok, Auke
2008-05-02 14:34 ` Ben Hutchings
2008-09-14 2:09 ` Jeff Garzik
2008-03-11 16:50 ` LRO/GSO interaction when packets are forwarded Kieran Mansley
2008-04-22 21:15 ` Ben Hutchings
2008-04-22 23:01 ` Stephen Hemminger
2008-04-23 6:00 ` Jarek Poplawski
2008-04-23 6:15 ` Jarek Poplawski
2008-04-23 10:07 ` Ben Hutchings [this message]
2008-04-23 10:38 ` Jarek Poplawski
2008-04-23 10:42 ` David Miller
2008-04-23 11:09 ` Jarek Poplawski
2008-04-23 10:04 ` Ben Hutchings
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