linux-kernel - Re: [PATCH net-next v10 02/14] net: page_pool: create hooks for custom page providers

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Date: Sun, 9 Jun 2024 17:27:54 -0700
From: David Wei <dw@...idwei.uk>
To: David Ahern <dsahern@...nel.org>, Pavel Begunkov
 <asml.silence@...il.com>, Mina Almasry <almasrymina@...gle.com>
Cc: Christoph Hellwig <hch@...radead.org>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
 linux-alpha@...r.kernel.org, linux-mips@...r.kernel.org,
 linux-parisc@...r.kernel.org, sparclinux@...r.kernel.org,
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 bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
 linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Donald Hunter <donald.hunter@...il.com>, Jonathan Corbet <corbet@....net>,
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 Shakeel Butt <shakeel.butt@...ux.dev>, Jeroen de Borst
 <jeroendb@...gle.com>, Praveen Kaligineedi <pkaligineedi@...gle.com>
Subject: Re: [PATCH net-next v10 02/14] net: page_pool: create hooks for
 custom page providers

On 2024-06-07 17:27, David Ahern wrote:
> I also do not understand why the ifq cache and overloading xdp functions
> have stuck around; I always thought both were added by Jonathan to
> simplify kernel ports during early POC days.

Setting up an Rx queue for ZC w/ a different pp will be done properly
using the new queue API that Mina merged recently. Those custom XDP
hooks will be gone in a non-RFC patchset.