netdev - Re: [v3,1/4] tools: bpftool: add net attach command to attach XDP on interface

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Message-ID: <CAH3MdRWkDrLP+GGRnWYNm3B6xFmaA-VEvuKgiO1xoDtoGKHVYw@mail.gmail.com>
Date:   Wed, 7 Aug 2019 09:56:39 -0700
From:   Y Song <ys114321@...il.com>
To:     "Daniel T. Lee" <danieltimlee@...il.com>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [v3,1/4] tools: bpftool: add net attach command to attach XDP on interface

On Tue, Aug 6, 2019 at 7:25 PM Daniel T. Lee <danieltimlee@...il.com> wrote:
>
> By this commit, using `bpftool net attach`, user can attach XDP prog on
> interface. New type of enum 'net_attach_type' has been made, as stated at
> cover-letter, the meaning of 'attach' is, prog will be attached on interface.
>
> With 'overwrite' option at argument, attached XDP program could be replaced.
> Added new helper 'net_parse_dev' to parse the network device at argument.
>
> BPF prog will be attached through libbpf 'bpf_set_link_xdp_fd'.
>
> Signed-off-by: Daniel T. Lee <danieltimlee@...il.com>

Acked-by: Yonghong Song <yhs@...com>