netdev - Re: [PATCH net-next 04/20] net: Add ndo_{peer,unpeer}

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Message-ID: <dc23879e-1c63-4158-b002-c291548055cb@davidwei.uk>
Date: Tue, 23 Sep 2025 09:06:04 -0700
From: David Wei <dw@...idwei.uk>
To: Jakub Kicinski <kuba@...nel.org>, Daniel Borkmann <daniel@...earbox.net>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org, davem@...emloft.net,
 razor@...ckwall.org, pabeni@...hat.com, willemb@...gle.com, sdf@...ichev.me,
 john.fastabend@...il.com, martin.lau@...nel.org, jordan@...fe.io,
 maciej.fijalkowski@...el.com, magnus.karlsson@...el.com
Subject: Re: [PATCH net-next 04/20] net: Add ndo_{peer,unpeer}_queues callback

On 2025-09-22 18:23, Jakub Kicinski wrote:
> On Fri, 19 Sep 2025 23:31:37 +0200 Daniel Borkmann wrote:
>> Add ndo_{peer,unpeer}_queues() callback which can be used by virtual drivers
>> that implement rxq mapping to a real rxq to update their internal state or
>> exposed capability flags from the set of rxq mappings.
> 
> Why is this something that virtual drivers implement?
> I'd think that queue forwarding can be almost entirely implemented
> in the core.

I believe Daniel needs it for AF_XDP.