[PATCH liburing v1 0/3] add basic zero copy receive support

[David Wei <dw@davidwei.uk>]

Add basic support for io_uring zero copy receive in liburing. Besides
the mandatory syncing of necessary liburing.h headers, add a thin
wrapper around the registration op and a unit test.

Users still need to setup by hand e.g. mmap, setup the registration
structs, do the registration and then setup the refill queue struct
io_uring_zcrx_rq.

In the future, I'll add code to hide the implementation details. But for
now, this unblocks the kernel selftest.

David Wei (3):
  zcrx: sync kernel headers
  zcrx: add basic support
  zcrx: add unit test

 src/include/liburing.h          |  12 +
 src/include/liburing/io_uring.h |  62 ++-
 src/liburing-ffi.map            |   1 +
 src/liburing.map                |   1 +
 src/register.c                  |   6 +
 test/Makefile                   |   1 +
 test/zcrx.c                     | 918 ++++++++++++++++++++++++++++++++
 7 files changed, 999 insertions(+), 2 deletions(-)
 create mode 100644 test/zcrx.c

-- 
2.43.5