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| author |   Anuj Gupta <anuj20.g@samsung.com> | 2022-05-11 11:17:49 +0530 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2022-05-11 07:41:19 -0600 |
| commit | f569add47119fa910ed7711b26b8d38e21f7ea77 (patch) | |
| tree | d2ea8fdca525a534d834504b5ebfd58bb88c412f /include/uapi | |
| parent | nvme: wire-up uring-cmd support for io-passthru on char-device. (diff) | |
| download | linux-dev-f569add47119fa910ed7711b26b8d38e21f7ea77.tar.xz linux-dev-f569add47119fa910ed7711b26b8d38e21f7ea77.zip | |
nvme: add vectored-io support for uring-cmd
wire up support for async passthru that takes an array of buffers (using
iovec). Exposed via a new op NVME_URING_CMD_IO_VEC. Same 'struct
nvme_uring_cmd' is to be used with -
1. cmd.addr as base address of user iovec array
2. cmd.data_len as count of iovec array elements
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220511054750.20432-6-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/nvme_ioctl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/nvme_ioctl.h b/include/uapi/linux/nvme_ioctl.h index 04e458c649ab..0b1876aa5a59 100644 --- a/include/uapi/linux/nvme_ioctl.h +++ b/include/uapi/linux/nvme_ioctl.h @@ -107,5 +107,6 @@ 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) #endif /* _UAPI_LINUX_NVME_IOCTL_H */ |