scsi: bsg: add io_uring passthrough handler

Browse source

Implement the SCSI-specific io_uring command handler for BSG using
struct bsg_uring_cmd.

The handler builds a SCSI request from the io_uring command, maps user
buffers (including fixed buffers), and completes asynchronously via a
request end_io callback and task_work. Completion returns a 32-bit
status and packed residual/sense information via CQE res and res2, and
supports IO_URING_F_NONBLOCK.

Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260317072226.2598233-4-yangxiuwei@kylinos.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>

...

This commit is contained in:

Yang Xiuwei 2026-03-17 15:22:26 +08:00 • committed by Jens Axboe

parent a1e97ce80d

commit 7b6d3255e7

1 changed files with 167 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

168

drivers/scsi/scsi_bsg.c

View file