[PATCH 00/10] vDPA: allow userspace query virito-block device

[Zhu Lingshan <lingshan.zhu@xxxxxxxxx>]

This series allows the user space applications query vDPA virtio-block
device inforamtion.

testing on vdpa_sim_blk, iproute2 output:
sudo ./vdpa/vdpa dev config show -jp vdpa_blk0
{
    "config": {
        "vdpa_blk0": {
            "capacity": 262144,
            "segment size": 4096,
            "block size": 512,
            "max segments in a request": 32,
            "num of queues": 1,
            "logical blocks per physical block (log2)": 0,
            "offset of first aligned logical block": 0,
            "minimum io size": 1,
            "optimal io size": 1,
            "maximum discard sectors for a segment": 4294967295,
            "max discard segments in a command": 1,
            "discard sector alignment": 512,
            "max write zeros sectors in a segment": 4294967295,
            "max write zero segments": 1,
            "read only": false,
            "flush command support": true
        }
    }
}

Please help review

Thanks
Zhu Lingshan

Zhu Lingshan (10):
  vDPA: report virtio-block capacity to user space
  vDPA: report virtio-block max segment size to user space
  vDPA: report virtio-block block-size to user space
  vDPA: report virtio-block max segments in a request to user space
  vDPA: report virtio-block MQ info to user space
  vDPA: report virtio-block topology info to user space
  vDPA: report virtio-block discarding configuration to user space
  vDPA: report virtio-block write zeroes configuration to user space
  vDPA: report virtio-block read-only info to user space
  vDPA: report virtio-blk flush info to user space

 drivers/vdpa/vdpa.c       | 212 ++++++++++++++++++++++++++++++++++++++
 include/linux/vdpa.h      |   1 +
 include/uapi/linux/vdpa.h |  17 +++
 3 files changed, 230 insertions(+)

-- 
2.39.3