On Tue, Jul 26, 2022 at 04:22:25PM +0530, Ankit Kumar wrote:
Hi Jens,
This patchset adds a way to test NVMe uring passthrough commands with
nvme-ns character device. The uring passthrough was introduced with 5.19
io_uring.
To send nvme uring passthrough commands we require helpers to fetch NVMe
char device (/dev/ngXnY) specific fields such as namespace id, lba size etc.
How to run:
./test/io_uring_passthrough.t /dev/ng0n1
The test covers write/read with verify for sqthread poll, vectored / nonvectored
and fixed IO buffers, which can be extended in future. As of now iopoll is not
supported for passthrough commands, there is a test for such case.
./test/io_uring_passthrough.t /dev/ng0n1
doesn't support polled IO
Not sure if iopoll test is bit premature, as above message will keep
coming until this is wired up in kernel-side.
Perhaps this is fine to test as in initial stages graceful no-support
error code was not coming from kernel. The above confirms that
kernel bails out fine now.
Things ran fine for me, so
Tested-by: Kanchan Joshi <joshi.k@xxxxxxxxxxx>
