netdev - Re: [v2,0/2] tools: bpftool: add net attach/detach command to attach XDP prog

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Message-ID: <20190801162129.0a775fde@cakuba.netronome.com>
Date:   Thu, 1 Aug 2019 16:21:29 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     "Daniel T. Lee" <danieltimlee@...il.com>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>, netdev@...r.kernel.org
Subject: Re: [v2,0/2] tools: bpftool: add net attach/detach command to
 attach XDP prog

On Thu,  1 Aug 2019 17:11:31 +0900, Daniel T. Lee wrote:
> Currently, bpftool net only supports dumping progs attached on the
> interface. To attach XDP prog on interface, user must use other tool
> (eg. iproute2). By this patch, with `bpftool net attach/detach`, user
> can attach/detach XDP prog on interface.
> 
>     $ ./bpftool prog
>     ...
>     208: xdp  name xdp_prog1  tag ad822e38b629553f  gpl
>       loaded_at 2019-07-28T18:03:11+0900  uid 0
>     ...
>     $ ./bpftool net attach id 208 xdpdrv enp6s0np1
>     $ ./bpftool net
>     xdp:
>     enp6s0np1(5) driver id 208
>     ...
>     $ ./bpftool net detach xdpdrv enp6s0np1
>     $ ./bpftool net
>     xdp:
>     ...
> 
> While this patch only contains support for XDP, through `net
> attach/detach`, bpftool can further support other prog attach types.
> 
> XDP attach/detach tested on Mellanox ConnectX-4 and Netronome Agilio.

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