netdev - Re: Ask for help about bpf map

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Message-ID: <beb37418-4518-100a-5b1b-e036be6f71b6@huawei.com>
Date:   Tue, 20 Jul 2021 21:05:39 +0800
From:   "luwei (O)" <luwei32@...wei.com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>
CC:     Andrii Nakryiko <andrii.nakryiko@...il.com>,
        bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        David Ahern <dahern@...italocean.com>
Subject: Re: Ask for help about bpf map

It's very strange, in my virtual host, it is:

$ ip -V

ip utility, iproute2-5.11.0


but in my physical host:

$ ip -V
ip utility, iproute2-5.11.0, libbpf 0.5.0


I compiled iproute2 in the same way as I mentioned previously, and the 
kernel versions are both 5.13 (in fact the same code) .


在 2021/7/19 8:38 PM, Toke Høiland-Jørgensen 写道:
> "luwei (O)" <luwei32@...wei.com> writes:
>
>> Andrii and Toke inspired me. You are right, the libbpf version should be included in -V output
>> , but not mine. I searched google and found this page: https://www.spinics.net/lists/netdev/msg700482.html
>> , according which I re-compiled iproute2 and it works.
> Did the libbpf version appear in the output of 'ip -V' after you
> recompiled and enabled it? It does in mine:
>
> $ ./ip/ip -V
> ip utility, iproute2-5.13.0, libbpf 0.4.0
>
> -Toke
>
> .

-- 
Best Regards,
Lu Wei