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Message-ID: <20240617204804.680a1254@elisabeth>
Date: Mon, 17 Jun 2024 20:48:04 +0200
From: Stefano Brivio <sbrivio@...hat.com>
To: Aaron Conole <aconole@...hat.com>
Cc: netdev@...r.kernel.org, dev@...nvswitch.org,
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, Pravin B
 Shelar <pshelar@....org>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo
 Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>, Adrián Moreno <amorenoz@...hat.com>, Simon Horman
 <horms@...nel.org>
Subject: Re: [PATCH net-next 6/7] selftests: net: Use the provided dpctl
 rather than the vswitchd for tests.

On Mon, 17 Jun 2024 14:02:17 -0400
Aaron Conole <aconole@...hat.com> wrote:

> The current pmtu test infrastucture requires an installed copy of the
> ovs-vswitchd userspace.  This means that any automated or constrained
> environments may not have the requisite tools to run the tests.  However,
> the pmtu tests don't require any special classifier processing.  Indeed
> they are only using the vswitchd in the most basic mode - as a NORMAL
> switch.
> 
> However, the ovs-dpctl kernel utility can now program all the needed basic
> flows to allow traffic to traverse the tunnels and provide support for at
> least testing some basic pmtu scenarios.  More complicated flow pipelines
> can be added to the internal ovs test infrastructure, but that is work for
> the future.  For now, enable the most common cases - wide mega flows with
> no other prerequisites.
> 
> Enhance the pmtu testing to try testing using the internal utility, first.
> As a fallback, if the internal utility isn't running, then try with the
> ovs-vswitchd userspace tools.

Oh, nice, it looks saner than I thought. :)

> Signed-off-by: Aaron Conole <aconole@...hat.com>
> ---
>  tools/testing/selftests/net/pmtu.sh | 145 +++++++++++++++++++++++-----
>  1 file changed, 123 insertions(+), 22 deletions(-)

Reviewed-by: Stefano Brivio <sbrivio@...hat.com>

-- 
Stefano


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