netdev - [PATCH io_uring 0/5] Add dmabuf support for io

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Message-ID: <cover.1746097431.git.asml.silence@gmail.com>
Date: Thu,  1 May 2025 13:17:13 +0100
From: Pavel Begunkov <asml.silence@...il.com>
To: io-uring@...r.kernel.org
Cc: asml.silence@...il.com,
	David Wei <dw@...idwei.uk>,
	netdev@...r.kernel.org,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Pedro Tammela <pctammela@...atatu.com>,
	Victor Nogueira <victor@...atatu.com>
Subject: [PATCH io_uring 0/5] Add dmabuf support for io_uring zcrx

Currently, io_uring zcrx uses regular user pages to populate the
area for page pools, this series allows the user to pass a dmabuf
instead.

Patches 1-4 are preparatory and do code shuffling. All dmabuf
touching changes are in the last patch. A basic example can be
found at:

https://github.com/isilence/liburing/tree/zcrx-dmabuf
https://github.com/isilence/liburing.git zcrx-dmabuf

Pavel Begunkov (5):
  io_uring/zcrx: improve area validation
  io_uring/zcrx: resolve netdev before area creation
  io_uring/zcrx: split out memory holders from area
  io_uring/zcrx: split common area map/unmap parts
  io_uring/zcrx: dmabuf backed zerocopy receive

 include/uapi/linux/io_uring.h |   6 +-
 io_uring/rsrc.c               |  27 ++--
 io_uring/rsrc.h               |   2 +-
 io_uring/zcrx.c               | 260 +++++++++++++++++++++++++++-------
 io_uring/zcrx.h               |  18 ++-
 5 files changed, 248 insertions(+), 65 deletions(-)

-- 
2.48.1