[PATCH v2 0/3] Add Support for GET LBA STATUS 16 command in scsi emulation

[Lin Ma <lma@suse.com>]

v2->v1:
Follow Claudio's suggestions and the docker test result, Fix the dereferencing
'void *' pointer issues and the coding style issues.


In this current design, The GET LBA STATUS parameter data only contains
an eight-byte header + one LBA status descriptor.

How to test:
host:~ # qemu-system-x86_64 \
...
-drive file=/vm0/disk0.raw,format=raw,if=none,id=drive0,discard=unmap \
-device scsi-hd,id=scsi0,drive=drive0 \
...


guest:~ # dd if=/dev/zero of=/dev/sda bs=512 seek=1024 count=256

guest:~ # sg_unmap -l 1024 -n 32 /dev/sda

guest:~ # sg_get_lba_status /dev/sda -l 1024
No indication of the completion condition
RTP=0
descriptor LBA: 0x0000000000000400  blocks: 32  deallocated

Lin Ma (3):
  block: Add bdrv_co_get_lba_status
  block: Add GET LBA STATUS support
  scsi-disk: Add support for the GET LBA STATUS 16 command

 block/block-backend.c          | 38 ++++++++++++++
 block/io.c                     | 43 ++++++++++++++++
 hw/scsi/scsi-disk.c            | 90 ++++++++++++++++++++++++++++++++++
 include/block/accounting.h     |  1 +
 include/block/block_int.h      |  5 ++
 include/scsi/constants.h       |  1 +
 include/sysemu/block-backend.h |  2 +
 7 files changed, 180 insertions(+)

-- 
2.26.0