netdev - Re: [RFC PATCH net-next 1/1] tc-testing: Restore original behaviour for namespaces in tdc

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Date:   Fri, 14 Jun 2019 11:37:24 +0200
From:   Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:     Lucas Bates <lucasb@...atatu.com>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, jhs@...atatu.com, kernel@...atatu.com,
        xiyou.wangcong@...il.com, jiri@...nulli.us, mleitner@...hat.com,
        vladbu@...lanox.com, dcaratti@...hat.com
Subject: Re: [RFC PATCH net-next 1/1] tc-testing: Restore original behaviour
 for namespaces in tdc

Le 05/06/2019 à 23:08, Lucas Bates a écrit :
> Apologies for the delay in getting this out. I've been busy
> with other things and this change was a little trickier than
> I expected.
> 
> This patch restores the original behaviour for tdc prior to the
> introduction of the plugin system, where the network namespace
> functionality was split from the main script.
> 
> It introduces the concept of required plugins for testcases,
> and will automatically load any plugin that isn't already
> enabled when said plugin is required by even one testcase.
> 
> Additionally, the -n option for the nsPlugin is deprecated
> so the default action is to make use of the namespaces.
> Instead, we introduce -N to not use them, but still create
> the veth pair.
> 
> Comments welcome!
Thanks for the follow up. I successfully tested your patch, it fixes the netns case.

Note that there is still a bunch of test that fails or are skipped after your
patch, for example:
ok 431 e41d - Add 1M flower filters with 10 parallel tc instances # skipped -
Not executed because DEV2 is not defined


The message is not really explicit, you have to dig into the code to understand
that '-d <dev>' is needed.
Is it not possible to use a dummy interface by default?

>From my point of view, if all tests are not successful by default, it scares
users and prevent them to use those tests suite to validate their patches.


Regards,
Nicolas