netdev - Re: [PATCH v2 bpf 0/5] New netdev feature flags for XDP

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Date:   Mon, 07 Dec 2020 13:04:30 +0100
From:   Toke Høiland-Jørgensen <toke@...hat.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     alardam@...il.com, magnus.karlsson@...el.com,
        bjorn.topel@...el.com, andrii.nakryiko@...il.com, ast@...nel.org,
        daniel@...earbox.net, netdev@...r.kernel.org, davem@...emloft.net,
        john.fastabend@...il.com, hawk@...nel.org,
        maciej.fijalkowski@...el.com, jonathan.lemon@...il.com,
        bpf@...r.kernel.org, jeffrey.t.kirsher@...el.com,
        maciejromanfijalkowski@...il.com, intel-wired-lan@...ts.osuosl.org,
        Marek Majtyka <marekx.majtyka@...el.com>
Subject: Re: [PATCH v2 bpf 0/5] New netdev feature flags for XDP

Jakub Kicinski <kuba@...nel.org> writes:

> On Fri, 04 Dec 2020 18:26:10 +0100 Toke Høiland-Jørgensen wrote:
>> Jakub Kicinski <kuba@...nel.org> writes:
>> 
>> > On Fri,  4 Dec 2020 11:28:56 +0100 alardam@...il.com wrote:  
>> >>  * Extend ethtool netlink interface in order to get access to the XDP
>> >>    bitmap (XDP_PROPERTIES_GET). [Toke]  
>> >
>> > That's a good direction, but I don't see why XDP caps belong in ethtool
>> > at all? We use rtnetlink to manage the progs...  
>> 
>> You normally use ethtool to get all the other features a device support,
>> don't you?
>
> Not really, please take a look at all the IFLA attributes. There's 
> a bunch of capabilities there.

Ah, right, TIL. Well, putting this new property in rtnetlink instead of
ethtool is fine by me as well :)

-Toke