Re: [RFC v2 00/13] Introduce VDUSE - vDPA Device in Userspace

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To: Xie Yongji <xieyongji@xxxxxxxxxxxxx>, mst@xxxxxxxxxx, stefanha@xxxxxxxxxx, sgarzare@xxxxxxxxxx, parav@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, rdunlap@xxxxxxxxxxxxx, willy@xxxxxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, axboe@xxxxxxxxx, bcrl@xxxxxxxxx, corbet@xxxxxxx
Subject: Re: [RFC v2 00/13] Introduce VDUSE - vDPA Device in Userspace
From: Jason Wang <jasowang@xxxxxxxxxx>
Date: Wed, 23 Dec 2020 16:14:27 +0800
Cc: linux-aio@xxxxxxxxx, kvm@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx
In-reply-to: <c892652a-3f57-c337-8c67-084ba6d10834@redhat.com>
References: <20201222145221.711-1-xieyongji@bytedance.com> <c892652a-3f57-c337-8c67-084ba6d10834@redhat.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0


On 2020/12/23 下午2:38, Jason Wang wrote:

V1 to V2:
- Add vhost-vdpa support
I may miss something but I don't see any code to support that. E.gneither set_map nor dma_map/unmap is implemented in the config ops.
Thanks



Speak too fast :(

I saw a new config ops was introduced.

Let me dive into that.

Thanks

References:
- [RFC v2 00/13] Introduce VDUSE - vDPA Device in Userspace
  - From: Xie Yongji
- Re: [RFC v2 00/13] Introduce VDUSE - vDPA Device in Userspace
  - From: Jason Wang

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