netdev - Re: [PATCH bpf-next 04/10] bpf: Implement link introspection for tc BPF link programs

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Date:   Wed, 5 Oct 2022 20:19:30 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     bpf@...r.kernel.org, razor@...ckwall.org, ast@...nel.org,
        andrii@...nel.org, martin.lau@...ux.dev, john.fastabend@...il.com,
        joannelkoong@...il.com, memxor@...il.com, toke@...hat.com,
        joe@...ium.io, netdev@...r.kernel.org
Subject: Re: [PATCH bpf-next 04/10] bpf: Implement link introspection for tc
 BPF link programs

On Tue, Oct 4, 2022 at 4:12 PM Daniel Borkmann <daniel@...earbox.net> wrote:
>
> Implement tc BPF link specific show_fdinfo and link_info to emit ifindex,
> attach location and priority.
>
> Co-developed-by: Nikolay Aleksandrov <razor@...ckwall.org>
> Signed-off-by: Nikolay Aleksandrov <razor@...ckwall.org>
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
> ---

LGTM

Acked-by: Andrii Nakryiko <andrii@...nel.org>

>  include/uapi/linux/bpf.h       |  5 +++++
>  kernel/bpf/net.c               | 36 ++++++++++++++++++++++++++++++++++
>  tools/include/uapi/linux/bpf.h |  5 +++++
>  3 files changed, 46 insertions(+)
>
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index c006f561648e..f1b089170b78 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -6309,6 +6309,11 @@ struct bpf_link_info {
>                 struct {
>                         __u32 ifindex;
>                 } xdp;
> +               struct {
> +                       __u32 ifindex;
> +                       __u32 attach_type;
> +                       __u32 priority;
> +               } tc;
>         };
>  } __attribute__((aligned(8)));
>

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