# Re: \[External\] Re: \[RFC 0/4\] Introduce VDUSE - vDPA Device in Userspace

- From: Jason Wang \<hidden\>
- Date: 2020-10-20 02:21:08 
- List: virtualization
- Page: https://ratatoskr.run/virtualization/2020/10/6504097
- Thread: https://ratatoskr.run/linux-mm/2020/10/6504078/t.md

```text

On 2020/10/20 上午10:18, 谢永吉 wrote:
>
>
>
>     How does this driver compare with vhost-user-blk (which doesn't
>     need kernel support)?
>
>
> We want to implement a block device rather than a virtio-blk dataplane. And with this driver's help, the vhost-user-blk process could provide storage service to all APPs in the host.
>
> Thanks,
> Yongji


I guess the point is that, with the help of VDUSE, besides vhost-vDPA for VM, you can have a kernel virtio interface through virtio-vdpa which can not be done in vhost-user-blk.

Thanks

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