io_uring/net: support bundles for recv

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If IORING_OP_RECV is used with provided buffers, the caller may also set
IORING_RECVSEND_BUNDLE to turn it into a multi-buffer recv. This grabs
buffers available and receives into them, posting a single completion for
all of it.

This can be used with multishot receive as well, or without it.

Now that both send and receive support bundles, add a feature flag for
it as well. If IORING_FEAT_RECVSEND_BUNDLE is set after registering the
ring, then the kernel supports bundles for recv and send.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Jens Axboe 2024-03-05 16:22:04 -07:00

parent a05d1f625c

commit 2f9c9515bd

3 changed files with 105 additions and 29 deletions

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15

include/uapi/linux/io_uring.h

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3

io_uring/io_uring.c

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116

io_uring/net.c

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