io_uring/zcrx: add dynamic area provisioning

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It's not always possible for the user to predict during registration how
much memory zcrx will need to sustain the traffic. Allow to dynamically
add more areas with a new ctrl code ZCRX_CTRL_ADD_AREA.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/43495ca686713b3f0014c9f47c4c0276d704da4d.1786108672.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2026-08-07 14:19:34 +01:00 • committed by Jens Axboe

parent 5a22bfdd61

commit 3c8a5e2715

2 changed files with 57 additions and 6 deletions

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7

include/uapi/linux/io_uring/zcrx.h

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56

io_uring/zcrx.c

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