netdev - Re: [PATCH iproute2-next 0/5] iproute2: add libbpf support

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Message-ID: <08071e1e-497f-f53e-916a-8b519fdd1e0f@gmail.com>
Date:   Sun, 29 Nov 2020 12:41:49 -0700
From:   David Ahern <dsahern@...il.com>
To:     Stephen Hemminger <stephen@...workplumber.org>,
        Hangbin Liu <haliu@...hat.com>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        David Miller <davem@...emloft.net>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        Jiri Benc <jbenc@...hat.com>,
        Andrii Nakryiko <andrii@...nel.org>,
        Toke Høiland-Jørgensen 
        <toke@...hat.com>
Subject: Re: [PATCH iproute2-next 0/5] iproute2: add libbpf support

On 11/28/20 11:16 PM, Stephen Hemminger wrote:
> Luca wants to put this in Debian 11 (good idea), but that means:
> 
> 1. It has to work with 5.10 release and kernel.
> 2. Someone has to test it.
> 3. The 5.10 is a LTS kernel release which means BPF developers have
>    to agree to supporting LTS releases.
> 
> If someone steps up to doing this then I would be happy to merge it now
> for 5.10. Otherwise it won't show up until 5.11.

It would be good for Bullseye to have the option to use libbpf with
iproute2. If Debian uses the 5.10 kernel then it should use the 5.10
version of iproute2 and 5.10 version libbpf. All the components align
with consistent versioning.

I have some use cases I can move from bpftool loading to iproute2 as
additional testing to what Hangbin has already done. If that goes well,
I can re-send the patch series against iproute2-main branch by next weekend.

It would be good for others (Jesper, Toke, Jiri) to run their own
testing as well.