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To: Andrew Lunn Cc: Matthieu Baerts , Andrew Lunn , Jakub Kicinski , Simon Horman , Paolo Abeni , Eric Dumazet , "David S . Miller" , netdev References: <4ec29d6e-2afe-4710-b3a4-7d7e035de063@bootlin.com> Content-Language: en-US From: Maxime Chevallier In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Last-TLS-Session-Version: TLSv1.3 Hi +netdev@ On 9/14/26 22:30, Andrew Lunn wrote: > On Mon, Sep 14, 2026 at 10:45:57AM +0200, Maxime Chevallier wrote: >> Hi, >> >> sorry this is off-list, I don't know what's the correct channel for >> this kind of discussion, maybe directly in the nipa GH ? [Bringing this to netdev@, for the context, this is me considering the addition of stmmac to the netdev CI infra] >> >> As part of the stmmac maintenance work I've undertaken, I've setup >> a local CI for stmmac, allowing to make sure we detect breakages >> early on, and on a good variety of HW platforms covering most variants >> of the IP. >> >> As an experiment I've plugged that to netdev@, with nightly tests of submitted >> series, and ajudsted my infra so that I can fully build + run the whole set >> of patches under a few hours. >> >> The next logical step is to plug that to the netdev CI, but I have a few questions >> for you : >> >> - I currently have 8 boards with stmmac on them, and 7 more on their way to me, so >> in total I'd be adding around 15 more devices to NIPA, is it OK to add 15 or >> should I somehow try to condense these results ? > > Do you have enough interfaces on these boards you can have 4 pairs of > boards with directly connected interfaces? Most of the boards with a few rare exceptions are single-port, and for now they are either facing non-stmmac embedded boards, or cheap USB<->Ethernet adapters plugged to my testing infra. I still have a couple of devices that are reaching the CI infra through a switch, but not for long. I can run tests that involve configuring the peer :) > >> - The current kselftest don't mean much for stmmac, I don't have any board that has >> RSS, queueing stuff also doesn't really apply, the meaningful ksft are mostly >> csum and timestamping. > > Does kselftest at least do the correct thing and declare a skip? I > guess most NICs don't actually have RSS and queue stuff. It's a mix of both, some gracefully skip, some fail. > >> I'd be happy to have stmmac plugged to NIPA though, I think it's quite a good >> candidate for an embedded driver to run these, hopefully this could set the example >> for other vendors... > > I also hope it is something bootlin can turn into a training course, > so more vendors setup their own runners. It can at least be a good topic for netdevconf / LPC / ELCE :) Maxime