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| author | Yang Xiuwei <yangxiuwei@kylinos.cn> | 2026-03-17 15:22:25 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-03-19 11:38:24 -0600 |
| commit | a1e97ce80d9f41d0bb83951d758ff6fe49f3de60 (patch) | |
| tree | 76c84703b7d5b00cb692f6a08938137a87ac9c8b /drivers/scsi | |
| parent | 7da9261bab0a82bdbc4aafd2ad4bc3529b7cb772 (diff) | |
| download | lwn-a1e97ce80d9f41d0bb83951d758ff6fe49f3de60.tar.gz lwn-a1e97ce80d9f41d0bb83951d758ff6fe49f3de60.zip | |
bsg: add io_uring command support to generic layer
Add an io_uring command handler to the generic BSG layer. The new
.uring_cmd file operation validates io_uring features and delegates
handling to a per-queue bsg_uring_cmd_fn callback.
Extend bsg_register_queue() so transport drivers can register both
sg_io and io_uring command handlers.
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260317072226.2598233-3-yangxiuwei@kylinos.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/scsi_bsg.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_bsg.c b/drivers/scsi/scsi_bsg.c index a9a9ec086a7e..4d57e524e141 100644 --- a/drivers/scsi/scsi_bsg.c +++ b/drivers/scsi/scsi_bsg.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bsg.h> +#include <linux/io_uring/cmd.h> #include <scsi/scsi.h> #include <scsi/scsi_ioctl.h> #include <scsi/scsi_cmnd.h> @@ -9,6 +10,12 @@ #define uptr64(val) ((void __user *)(uintptr_t)(val)) +static int scsi_bsg_uring_cmd(struct request_queue *q, struct io_uring_cmd *ioucmd, + unsigned int issue_flags, bool open_for_write) +{ + return -EOPNOTSUPP; +} + static int scsi_bsg_sg_io_fn(struct request_queue *q, struct sg_io_v4 *hdr, bool open_for_write, unsigned int timeout) { @@ -99,5 +106,6 @@ out_put_request: struct bsg_device *scsi_bsg_register_queue(struct scsi_device *sdev) { return bsg_register_queue(sdev->request_queue, &sdev->sdev_gendev, - dev_name(&sdev->sdev_gendev), scsi_bsg_sg_io_fn); + dev_name(&sdev->sdev_gendev), scsi_bsg_sg_io_fn, + scsi_bsg_uring_cmd); } |