netdev - Re: [RFC] Discuss about an new idea "Vsock over Virtio-net"

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Message-ID: <55352308-9ceb-413e-44f6-e3dfd8f642cc@redhat.com>
Date:   Fri, 30 Nov 2018 20:55:17 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     jiangyiwen <jiangyiwen@...wei.com>, stefanha@...hat.com,
        stefanha@...il.com, netdev@...r.kernel.org, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [RFC] Discuss about an new idea "Vsock over Virtio-net"


On 2018/11/30 下午8:52, Michael S. Tsirkin wrote:
>>>    If you want to compare it with
>>> something that would be TCP or QUIC.  The fundamental difference between
>>> virtio-vsock and e.g. TCP is that TCP operates in a packet loss environment.
>>> So they are using timers for reliability, and receiver is always free to
>>> discard any unacked data.
>> Virtio-net knows nothing above L2, so they are totally transparent to device
>> itself. I still don't get why not using virtio-net instead.
>>
>>
>> Thanks
> Is your question why is virtio-vsock used instead of TCP on top of IP
> on top of virtio-net?
>
>

No, my question is why not do vsock through virtio-net.

Thanks