linux-kernel - Re: [PATCH net-next v4 00/24][pull request] Queue configs and large buffer providers

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Message-ID: <f0e40a00-ab13-42dc-b9ca-010fd4b115b8@gmail.com>
Date: Mon, 13 Oct 2025 16:03:40 +0100
From: Pavel Begunkov <asml.silence@...il.com>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>,
 davem@...emloft.net, Eric Dumazet <edumazet@...gle.com>,
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
 Donald Hunter <donald.hunter@...il.com>,
 Michael Chan <michael.chan@...adcom.com>,
 Pavan Chebbi <pavan.chebbi@...adcom.com>,
 Jesper Dangaard Brouer <hawk@...nel.org>,
 John Fastabend <john.fastabend@...il.com>,
 Stanislav Fomichev <sdf@...ichev.me>, Joshua Washington
 <joshwash@...gle.com>, Harshitha Ramamurthy <hramamurthy@...gle.com>,
 Jian Shen <shenjian15@...wei.com>, Salil Mehta <salil.mehta@...wei.com>,
 Jijie Shao <shaojijie@...wei.com>, Sunil Goutham <sgoutham@...vell.com>,
 Geetha sowjanya <gakula@...vell.com>, Subbaraya Sundeep
 <sbhatta@...vell.com>, hariprasad <hkelam@...vell.com>,
 Bharat Bhushan <bbhushan2@...vell.com>, Saeed Mahameed <saeedm@...dia.com>,
 Tariq Toukan <tariqt@...dia.com>, Mark Bloch <mbloch@...dia.com>,
 Leon Romanovsky <leon@...nel.org>, Alexander Duyck <alexanderduyck@...com>,
 kernel-team@...a.com, Ilias Apalodimas <ilias.apalodimas@...aro.org>,
 Joe Damato <joe@...a.to>, David Wei <dw@...idwei.uk>,
 Willem de Bruijn <willemb@...gle.com>, Mina Almasry
 <almasrymina@...gle.com>, Breno Leitao <leitao@...ian.org>,
 Dragos Tatulea <dtatulea@...dia.com>, linux-kernel@...r.kernel.org,
 linux-doc@...r.kernel.org, linux-rdma@...r.kernel.org,
 Jonathan Corbet <corbet@....net>, io-uring <io-uring@...r.kernel.org>
Subject: Re: [PATCH net-next v4 00/24][pull request] Queue configs and large
 buffer providers

On 10/13/25 15:54, Pavel Begunkov wrote:

Forgot to CC io_uring

> Add support for per-queue rx buffer length configuration based on [2]
> and basic infrastructure for using it in memory providers like
> io_uring/zcrx. Note, it only includes net/ patches and leaves out
> zcrx to be merged separately. Large rx buffers can be beneficial with
> hw-gro enabled cards that can coalesce traffic, which reduces the
> number of frags traversing the network stack and resuling in larger
> contiguous chunks of data given to the userspace.

Same note as the last time, not great that it's over the 15 patches,
but I don't see a good way to shrink it considering that the original
series [2] is 22 patches long, and I'll somehow need to pull it it
into the io_uring tree after. Please let me know if there is a strong
feeling about that, and/or what would the preferred way be.

-- 
Pavel Begunkov