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

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On Mon, Feb 19, 2024 at 02:55:56AM +0800, Zhu Lingshan wrote:
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 for this series, and sorry for the deleay.
I left some comments in the patch, about the virtio-blk config space
there are some missing fields:
- virtio_blk_geometry fields
- writeback field
- *secure_erase* fields
- virtio_blk_zoned_characteristics fields

Do you plan to add them later?


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