netdev - Re: [RFC net-next 1/2] netdev-genl: Add an XSK attribute to queues

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Message-ID: <Z5uoH-RkXNreyU1h@LQ3V64L9R2>
Date: Thu, 30 Jan 2025 11:26:07 -0500
From: Joe Damato <jdamato@...tly.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, sridhar.samudrala@...el.com,
	Donald Hunter <donald.hunter@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Mina Almasry <almasrymina@...gle.com>,
	Martin Karsten <mkarsten@...terloo.ca>,
	Amritha Nambiar <amritha.nambiar@...el.com>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Daniel Jurgens <danielj@...dia.com>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [RFC net-next 1/2] netdev-genl: Add an XSK attribute to queues

On Wed, Jan 29, 2025 at 05:52:24PM -0800, Jakub Kicinski wrote:
> On Wed, 29 Jan 2025 17:24:24 +0000 Joe Damato wrote:
> > Expose a new per-queue attribute, xsk, which indicates that a queue is
> > being used for AF_XDP. Update the documentation to more explicitly state
> > which queue types are linked.
> 
> Let's do the same thing we did for io_uring queues? An empty nest:
> https://lore.kernel.org/all/20250116231704.2402455-6-dw@davidwei.uk/
> 
> At the protocol level nest is both smaller and more flexible.
> It's just 4B with zero length and a "this is a nest" flag.
> We can add attributes to it as we think of things to express.

Thanks for the pointer; will do.