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* [PATCH v3 0/3] implement direct IO with integrity
@ 2022-09-09  6:32 Alexander V. Buev
  2022-09-09  6:32 ` [PATCH v3 1/3] block: bio-integrity: add PI iovec to bio Alexander V. Buev
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Alexander V. Buev @ 2022-09-09  6:32 UTC (permalink / raw)
  To: linux-block
  Cc: io-uring, Jens Axboe, Christoph Hellwig, Martin K . Petersen,
	Pavel Begunkov, Chaitanya Kulkarni, Mikhail Malygin, linux,
	Alexander V. Buev

This series of patches makes possible to do direct block IO
with integrity payload using io uring kernel interface.
Userspace app can utilize new READV_PI/WRITEV_PI operation with a new
fields in sqe struct (pi_addr/pi_len) to provide iovec's with
integrity data.

Changes since v2:
 - separate code from fast path
 - keep rw_pi struct size <= 64 byte
 - using kiocb->private pointer to pass
   PI data iterator to block direct IO layer   
 - improved bio_integrity_add_iovec function 

Alexander V. Buev (3):
  block: bio-integrity: add PI iovec to bio
  block: io-uring: add READV_PI/WRITEV_PI operations
  block: fops: handle IOCB_USE_PI in direct IO

 block/bio-integrity.c         | 163 +++++++++
 block/fops.c                  |  80 +++++
 include/linux/bio.h           |   8 +
 include/linux/fs.h            |   1 +
 include/uapi/linux/io_uring.h |   6 +
 include/uapi/linux/uio.h      |   3 +-
 io_uring/Makefile             |   3 +-
 io_uring/io_uring.c           |   2 +
 io_uring/opdef.c              |  27 ++
 io_uring/rw.h                 |   4 +
 io_uring/rw_pi.c              | 619 ++++++++++++++++++++++++++++++++++
 io_uring/rw_pi.h              |  34 ++
 12 files changed, 948 insertions(+), 2 deletions(-)
 create mode 100644 io_uring/rw_pi.c
 create mode 100644 io_uring/rw_pi.h

-- 
2.30.2


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2022-09-09  9:02 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-09-09  6:32 [PATCH v3 0/3] implement direct IO with integrity Alexander V. Buev
2022-09-09  6:32 ` [PATCH v3 1/3] block: bio-integrity: add PI iovec to bio Alexander V. Buev
2022-09-09  6:32 ` [PATCH v3 2/3] block: io-uring: add READV_PI/WRITEV_PI operations Alexander V. Buev
2022-09-09  9:00   ` kernel test robot
2022-09-09  9:00   ` kernel test robot
2022-09-09  6:32 ` [PATCH v3 3/3] block: fops: handle IOCB_USE_PI in direct IO Alexander V. Buev

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