[Qemu-devel] Unified Socket Driver

[anton . ivanov]

Hi Jason, hi list,

Following is the unified socket transport patch split into parts
to make it more digestible.

Part 1 is a rewrite of the L2TPv3 driver to isolate the common
portions. 

The remaining 2 patches are additional transports 

In all cases the transports are switchless - they allow to connect
VM to a host, VM or a remote network device without involving any
switches in-between. They can be used with a switch too.

My longer term goal is to try to map RX and TX to either virtio
or some other mechanism which allows me to grab a multi-packet
event on TX so I can implement sendmmsg. I will try that in a
future patch.

It should be possible to migrate the UDP half of the existing
socket driver to this infrastructure. Unfortunately, it does
not apply to TCP, so only half of the driver can be migrated.

A.