Pavel Begunkov 825f276491 io_uring/zcrx: implement device-less mode for zcrx ...

Allow creating a zcrx instance without attaching it to a net device.
All data will be copied through the fallback path. The user is also
expected to use ZCRX_CTRL_FLUSH_RQ to handle overflows as it normally
should even with a netdev, but it becomes even more relevant as there
will likely be no one to automatically pick up buffers.

Apart from that, it follows the zcrx uapi for the I/O path, and is
useful for testing, experimentation, and potentially for the copy
receive path in the future if improved.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/674f8ad679c5a0bc79d538352b3042cf0999596e.1774261953.git.asml.silence@gmail.com
[axboe: fix spelling error in uapi header and commit message]
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2026-04-01 10:21:12 -06:00

..

bpf_filter.h

io_uring/bpf_filter: pass in expected filter payload size

2026-02-16 15:56:31 -07:00

mock_file.h

…

query.h

io_uring/query: add query.h copyright notice

2026-02-15 14:55:44 -07:00

zcrx.h

io_uring/zcrx: implement device-less mode for zcrx

2026-04-01 10:21:12 -06:00