netdev - Re: [PATCH net v2 06/17] selftests: forwarding: Add a helper to skip test when using veth pairs

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Message-ID: <ZNMogU0whoFeerho@shredder>
Date: Wed, 9 Aug 2023 08:47:45 +0300
From: Ido Schimmel <idosch@...sch.org>
To: Hangbin Liu <liuhangbin@...il.com>
Cc: Ido Schimmel <idosch@...dia.com>, netdev@...r.kernel.org,
	davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
	edumazet@...gle.com, petrm@...dia.com, razor@...ckwall.org,
	mirsad.todorovac@....unizg.hr
Subject: Re: [PATCH net v2 06/17] selftests: forwarding: Add a helper to skip
 test when using veth pairs

On Wed, Aug 09, 2023 at 09:55:25AM +0800, Hangbin Liu wrote:
> On Tue, Aug 08, 2023 at 05:14:52PM +0300, Ido Schimmel wrote:
> > A handful of tests require physical loopbacks to be used instead of veth
> > pairs. Add a helper that these tests will invoke in order to be skipped
> > when executed with veth pairs.
> 
> Hi Ido,
> 
> How to create physical loopbacks?

It's the same concept as veth. Take two physical ports and connect them
with a cable.