[Intel-wired-lan] [PATCH v2 bpf 1/5] net: ethtool: add xdp properties flag set
Marek Majtyka
alardam at gmail.com
Wed Feb 3 12:50:59 UTC 2021
On Tue, Feb 2, 2021 at 8:34 PM Jakub Kicinski <kuba at kernel.org> wrote:
>
> On Tue, 02 Feb 2021 13:05:34 +0100 Toke Høiland-Jørgensen wrote:
> > Marek Majtyka <alardam at gmail.com> writes:
> >
> > > Thanks Toke,
> > >
> > > In fact, I was waiting for a single confirmation, disagreement or
> > > comment. I have it now. As there are no more comments, I am getting
> > > down to work right away.
> >
> > Awesome! And sorry for not replying straight away - I hate it when I
> > send out something myself and receive no replies, so I suppose I should
> > get better at not doing that myself :)
> >
> > As for the inclusion of the XDP_BASE / XDP_LIMITED_BASE sets (which I
> > just realised I didn't reply to), I am fine with defining XDP_BASE as a
> > shortcut for TX/ABORTED/PASS/DROP, but think we should skip
> > XDP_LIMITED_BASE and instead require all new drivers to implement the
> > full XDP_BASE set straight away. As long as we're talking about
> > features *implemented* by the driver, at least; i.e., it should still be
> > possible to *deactivate* XDP_TX if you don't want to use the HW
> > resources, but I don't think there's much benefit from defining the
> > LIMITED_BASE set as a shortcut for this mode...
>
> I still have mixed feelings about these flags. The first step IMO
> should be adding validation tests. I bet^W pray every vendor has
> validation tests but since they are not unified we don't know what
> level of interoperability we're achieving in practice. That doesn't
> matter for trivial feature like base actions, but we'll inevitably
> move on to defining more advanced capabilities and the question of
> "what supporting X actually mean" will come up (3 years later, when
> we don't remember ourselves).
I am a bit confused now. Did you mean validation tests of those XDP
flags, which I am working on or some other validation tests?
What should these tests verify? Can you please elaborate more on the
topic, please - just a few sentences how are you see it?
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