[RFC,v3,0/5] *** Add support for zoned device ***

Message

Sam Li June 27, 2022, 12:19 a.m. UTC

*** This patch series adds support for zoned device to virtio-blk emulation. Zoned
Storage can support sequential writes, which reduces write amplification in SSD,
leading to higher write throughput and increased capacity.

v3:
- add block layer APIs resembling Linux ZoneBlockDevice ioctls (developing) ***

Sam Li (5):
  block: add block layer APIs resembling Linux ZonedBlockDevice ioctls.
  qemu-io: add zoned block device operations.
  file-posix: introduce get_sysfs_long_val for zoned device information.
  file-posix: introduce get_sysfs_str_val for device zoned model.
  qemu-iotests: add zone operation tests.

 block/block-backend.c             |  56 +++++
 block/coroutines.h                |   5 +
 block/file-posix.c                | 325 +++++++++++++++++++++++++++++-
 block/io.c                        |  21 ++
 include/block/block-common.h      |  43 +++-
 include/block/block-io.h          |  13 ++
 include/block/block_int-common.h  |  20 ++
 qemu-io-cmds.c                    | 121 +++++++++++
 tests/qemu-iotests/tests/zoned.sh |  49 +++++
 9 files changed, 645 insertions(+), 8 deletions(-)
 create mode 100755 tests/qemu-iotests/tests/zoned.sh