Kevin Wolf writes:
> From: Xie Yongji
>
> VDUSE [1] is a linux framework that makes it possible to implement
> software-emulated vDPA devices in userspace. This adds a library
> as a subproject to help implementing VDUSE backends in QEMU.
>
> [1]
---
tests/qemu-iotests/tests/zoned.sh | 49 +++
1 file changed, 49 insertions(+)
create mode 100755 tests/qemu-iotests/tests/zoned.sh
diff --git a/tests/qemu-iotests/tests/zoned.sh
b/tests/qemu-iotests/tests/zoned.sh
new file mode 100755
index 00..262c0b5427
---
block/io.c | 21 +++
include/block/block-io.h | 13 +
qemu-io-cmds.c | 121 +++
3 files changed, 155 insertions(+)
diff --git a/block/io.c b/block/io.c
index 789e6373d5..656a1b7271 100644
--- a/block/io.c
+++ b/block/io.c
By adding zone management operations in BlockDriver, storage
controller emulation can use the new block layer APIs including
zone_report and zone_mgmt(open, close, finish, reset).
---
block/block-backend.c| 56
block/coroutines.h | 5 +
block/file-posix.c
Use sysfs attribute files to get the zoned device information in case
that ioctl() commands of zone management interface won't work. It can
return long type of value like chunk_sectors, zoned_append_max_bytes,
max_open_zones, max_active_zones.
---
block/file-posix.c | 37
---
block/file-posix.c | 60
include/block/block-common.h | 4 +--
2 files changed, 62 insertions(+), 2 deletions(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index 73c2cdfbca..74c0245e0f 100644
--- a/block/file-posix.c
+++
*** 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
