Re: [PATCH bpf-next v2 0/7] Add bpf_link based TC-BPF API

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Hi Joanne, hi Kumar,

On 6/10/22 9:34 PM, Kumar Kartikeya Dwivedi wrote:
On Sat, Jun 11, 2022 at 12:37:50AM IST, Joanne Koong wrote:
On Fri, Jun 10, 2022 at 10:23 AM Joanne Koong <joannelkoong@xxxxxxxxx> wrote:
On Fri, Jun 10, 2022 at 5:58 AM Kumar Kartikeya Dwivedi
<memxor@xxxxxxxxx> wrote:
On Fri, Jun 10, 2022 at 05:54:27AM IST, Joanne Koong wrote:
On Thu, Jun 3, 2021 at 11:31 PM Kumar Kartikeya Dwivedi
<memxor@xxxxxxxxx> wrote:
[...]
I can have a look at resurrecting it later this month, if you're ok with waiting
until then, otherwise if someone else wants to pick this up before that it's
fine by me, just let me know so we avoid duplicated effort. Note that the
approach in v2 is dead/unlikely to get accepted by the TC maintainers, so we'd
have to implement the way Daniel mentioned in [0].

Sounds great! We'll wait and check back in with you later this month.

After reading the linked thread (which I should have done before
submitting my previous reply :)),  if I'm understanding it correctly,
it seems then that the work needed for tc bpf_link will be in a new
direction that's not based on the code in this v2 patchset. I'm
interested in learning more about bpf link and tc - I can pick this up
to work on. But if this was something you wanted to work on though,
please don't hesitate to let me know; I can find some other bpf link
thing to work on instead if that's the case.

The tc ingress/egress overhaul we also discussed at lsf/mm/bpf in our session
with John and pretty much is along the lines as in the earlier link you sent.
We need it from Cilium & Tetragon as well, so it's wip from our side at the
moment, modulo the bpf link part. Would you be okay if I pinged you once something
that is plateable is ready?

Thanks,
Daniel



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