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* [Qemu-devel] [PATCH v4 00/10] qemu-img convert with copy offloading
@ 2018-05-11 12:08 Fam Zheng
  2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 01/10] block: Introduce API for " Fam Zheng
                   ` (9 more replies)
  0 siblings, 10 replies; 16+ messages in thread
From: Fam Zheng @ 2018-05-11 12:08 UTC (permalink / raw)
  To: qemu-devel
  Cc: Paolo Bonzini, Ronnie Sahlberg, qemu-block, Peter Lieven,
	Fam Zheng, Kevin Wolf, Max Reitz, Stefan Hajnoczi, eblake

v4: - Fix raw offset and size. [Eric]
    - iscsi: Drop unnecessary return values and variables in favor of
      constants. [Stefan]
    - qcow2: Handle small backing case. [Stefan]
    - file-posix: Translate ENOSYS to ENOTSUP. [Stefan]
    - API documentation and commit message. [Stefan]
    - Add rev-by to patches 3, 5 - 10. [Stefan, Eric]

This series introduces block layer API for copy offloading and makes use of it
in qemu-img convert.

For now we implemented the operation in local file protocol with
copy_file_range(2).  Besides that it's possible to add similar to iscsi, nfs
and potentially more.

As far as its usage goes, in addition to qemu-img convert, we can emulate
offloading in scsi-disk (handle EXTENDED COPY command), and use the API in
block jobs too.

Fam Zheng (10):
  block: Introduce API for copy offloading
  raw: Check byte range uniformly
  raw: Implement copy offloading
  qcow2: Implement copy offloading
  file-posix: Implement bdrv_co_copy_range
  iscsi: Query and save device designator when opening
  iscsi: Create and use iscsi_co_wait_for_task
  iscsi: Implement copy offloading
  block-backend: Add blk_co_copy_range
  qemu-img: Convert with copy offloading

 block/block-backend.c          |  18 +++
 block/file-posix.c             |  96 ++++++++++++-
 block/io.c                     |  96 +++++++++++++
 block/iscsi.c                  | 314 ++++++++++++++++++++++++++++++++++++-----
 block/qcow2.c                  | 232 ++++++++++++++++++++++++++----
 block/raw-format.c             |  95 +++++++++----
 include/block/block.h          |  32 +++++
 include/block/block_int.h      |  38 +++++
 include/block/raw-aio.h        |  10 +-
 include/scsi/constants.h       |   5 +
 include/sysemu/block-backend.h |   4 +
 qemu-img.c                     |  50 ++++++-
 12 files changed, 891 insertions(+), 99 deletions(-)

-- 
2.14.3

^ permalink raw reply	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2018-05-17 10:02 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-05-11 12:08 [Qemu-devel] [PATCH v4 00/10] qemu-img convert with copy offloading Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 01/10] block: Introduce API for " Fam Zheng
2018-05-17  9:44   ` Stefan Hajnoczi
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 02/10] raw: Check byte range uniformly Fam Zheng
2018-05-11 13:59   ` Eric Blake
2018-05-14  1:57     ` Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 03/10] raw: Implement copy offloading Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 04/10] qcow2: " Fam Zheng
2018-05-17 10:01   ` Stefan Hajnoczi
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 05/10] file-posix: Implement bdrv_co_copy_range Fam Zheng
2018-05-17 10:02   ` Stefan Hajnoczi
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 06/10] iscsi: Query and save device designator when opening Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 07/10] iscsi: Create and use iscsi_co_wait_for_task Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 08/10] iscsi: Implement copy offloading Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 09/10] block-backend: Add blk_co_copy_range Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 10/10] qemu-img: Convert with copy offloading Fam Zheng

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