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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-07 19:35:50 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-07 19:35:50 +0300 |
| commit | 7c989b1da3946e40bf71be00a0b401015235605a (patch) | |
| tree | 33de4ff984af6a301d6e80a05d40a893909388c9 /include/uapi | |
| parent | 513389809e138ae903b6ef43c1d5d2ffaf4dca17 (diff) | |
| parent | 0e0abad2a71bcd7ba0f30e7975f5b4199ade4e60 (diff) | |
| download | linux-7c989b1da3946e40bf71be00a0b401015235605a.tar.xz | |
Merge tag 'for-6.1/passthrough-2022-10-04' of git://git.kernel.dk/linux
Pull passthrough updates from Jens Axboe:
"With these changes, passthrough NVMe support over io_uring now
performs at the same level as block device O_DIRECT, and in many cases
6-8% better.
This contains:
- Add support for fixed buffers for passthrough (Anuj, Kanchan)
- Enable batched allocations and freeing on passthrough, similarly to
what we support on the normal storage path (me)
- Fix from Geert fixing an issue with !CONFIG_IO_URING"
* tag 'for-6.1/passthrough-2022-10-04' of git://git.kernel.dk/linux:
io_uring: Add missing inline to io_uring_cmd_import_fixed() dummy
nvme: wire up fixed buffer support for nvme passthrough
nvme: pass ubuffer as an integer
block: extend functionality to map bvec iterator
block: factor out blk_rq_map_bio_alloc helper
block: rename bio_map_put to blk_mq_map_bio_put
nvme: refactor nvme_alloc_request
nvme: refactor nvme_add_user_metadata
nvme: Use blk_rq_map_user_io helper
scsi: Use blk_rq_map_user_io helper
block: add blk_rq_map_user_io
io_uring: introduce fixed buffer support for io_uring_cmd
io_uring: add io_uring_cmd_import_fixed
nvme: enable batched completions of passthrough IO
nvme: split out metadata vs non metadata end_io uring_cmd completions
block: allow end_io based requests in the completion batch handling
block: change request end_io handler to pass back a return value
block: enable batched allocation for blk_mq_alloc_request()
block: kill deprecated BUG_ON() in the flush handling
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 92f29d9505a6..ab7458033ee3 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -56,6 +56,7 @@ struct io_uring_sqe { __u32 hardlink_flags; __u32 xattr_flags; __u32 msg_ring_flags; + __u32 uring_cmd_flags; }; __u64 user_data; /* data to be passed back at completion time */ /* pack this to avoid bogus arm OABI complaints */ @@ -220,6 +221,14 @@ enum io_uring_op { }; /* + * sqe->uring_cmd_flags + * IORING_URING_CMD_FIXED use registered buffer; pass thig flag + * along with setting sqe->buf_index. + */ +#define IORING_URING_CMD_FIXED (1U << 0) + + +/* * sqe->fsync_flags */ #define IORING_FSYNC_DATASYNC (1U << 0) |