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nvme: enable uring-passthrough for admin commands

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Add two new opcodes that userspace can use for admin commands:
NVME_URING_CMD_ADMIN : non-vectroed
NVME_URING_CMD_ADMIN_VEC : vectored variant

Wire up support when these are issued on controller node(/dev/nvmeX).

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220520090630.70394-3-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Kanchan Joshi
2022-05-20 14:36:30 +05:30
committed by Jens Axboe
parent 00fc2eeb15
commit 58e5bdeb9c
4 changed files with 27 additions and 0 deletions
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2
include/uapi/linux/nvme_ioctl.h
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@@ -108,5 +108,7 @@ struct nvme_uring_cmd {
/* io_uring async commands: */
#define NVME_URING_CMD_IO _IOWR('N', 0x80, struct nvme_uring_cmd)
#define NVME_URING_CMD_IO_VEC _IOWR('N', 0x81, struct nvme_uring_cmd)
#define NVME_URING_CMD_ADMIN _IOWR('N', 0x82, struct nvme_uring_cmd)
#define NVME_URING_CMD_ADMIN_VEC _IOWR('N', 0x83, struct nvme_uring_cmd)
#endif /* _UAPI_LINUX_NVME_IOCTL_H */