kernel.git/tools/testing/selftests/net/io_uring_zerocopy_tx.c, branch master

selftests/net: io_uring: fix unknown errnum values

2025-10-17T23:57:53Z

The io_uring functions return negative error values, but error() expects these to be positive to properly match them to an errno string. Fix this to make sure the correct error descriptions are displayed upon failure. Signed-off-by: Carlos Llamas Link: https://patch.msgid.link/20251016182538.3790567-1-cmllamas@google.com Signed-off-by: Jakub Kicinski

selftests/net: Extract uring helpers to be reusable

2023-10-19T22:42:03Z

Instead of defining basic io_uring functions in the test case, move them to a common directory, so, other tests can use them. This simplify the test code and reuse the common liburing infrastructure. This is basically a copy of what we have in io_uring_zerocopy_tx with some minor improvements to make checkpatch happy. A follow-up test will use the same helpers in a BPF sockopt test. Signed-off-by: Breno Leitao Link: https://lore.kernel.org/r/20231016134750.1381153-8-leitao@debian.org Signed-off-by: Jens Axboe

selftest/net: adjust io_uring sendzc notif handling

2022-09-23T20:57:27Z

It's not currently possible but in the future we may get IORING_CQE_F_MORE and so a notification even for a failed request, i.e. when cqe->res <= 0. That's precisely what the documentation says, so adjust the test and do IORING_CQE_F_MORE checks regardless of the main completion cqe->res. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/aac948ea753a8bfe1fa3b82fe45debcb54586369.1663953085.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

selftests/net: return back io_uring zc send tests

2022-09-01T15:13:33Z

Enable io_uring zerocopy send tests back and fix them up to follow the new inteface. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/c8e5018c516093bdad0b6e19f2f9847dea17e4d2.1662027856.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

selftests/net: temporarily disable io_uring zc test

2022-09-01T15:13:33Z

We're going to change API, to avoid build problems with a couple of following commits, disable io_uring testing. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/12b7507223df04fbd12aa05fc0cb544b51d7ed79.1662027856.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

selftests/io_uring: test zerocopy send

2022-07-25T00:41:07Z

Add selftests for io_uring zerocopy sends and io_uring's notification infrastructure. It's largely influenced by msg_zerocopy and uses it on the receive side. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/03d5ec78061cf52db420f88ed0b48eb8f47ce9f7.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe