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Date: Wed, 29 Jan 2025 17:52:24 -0800
From: Jakub Kicinski <kuba@kernel.org>
To: Joe Damato <jdamato@fastly.com>
Cc: netdev@vger.kernel.org, sridhar.samudrala@intel.com, Donald Hunter
 <donald.hunter@gmail.com>, "David S. Miller" <davem@davemloft.net>, Eric
 Dumazet <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>, Simon
 Horman <horms@kernel.org>, Andrew Lunn <andrew+netdev@lunn.ch>, Xuan Zhuo
 <xuanzhuo@linux.alibaba.com>, Mina Almasry <almasrymina@google.com>, Martin
 Karsten <mkarsten@uwaterloo.ca>, Amritha Nambiar
 <amritha.nambiar@intel.com>, Stanislav Fomichev <sdf@fomichev.me>, Daniel
 Jurgens <danielj@nvidia.com>, linux-kernel@vger.kernel.org (open list)
Subject: Re: [RFC net-next 1/2] netdev-genl: Add an XSK attribute to queues
Message-ID: <20250129175224.1613aac1@kernel.org>
In-Reply-To: <20250129172431.65773-2-jdamato@fastly.com>
References: <20250129172431.65773-1-jdamato@fastly.com>
	<20250129172431.65773-2-jdamato@fastly.com>
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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.