snat不能跑在kvm虚拟机上？ about dpvs

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Flow director (fdir) is necessary for multi-core configure with SNAT/FNAT mode of DPVS now, it's the fastest way we found.
For the NIC without fdir support, there are also some alternated options, such as RSS calculate for local port selection, and packet reschedule between cores, but for now, we have no time to develop them due to limited developer resource.
If any one want to contribute, we'll be very glad, and we can discuss the ideas for NIC without FDIR in detail.

[liangfudeng]

e1000 and virtio without rss support too。single core is the only way?

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DPVS is for high performance, if running load balancer on VM with 1G or less NIC or little number of CPU cores, I think LVS's performance is good enough.
To support SNAT/FNAT without fdir, the code will be much complicated, since packets need be re-scheduled among CPU cores.

[liangfudeng]

thanks for you response。 I have change some code for kvm .it is running now.

[beacer]

@liangfudeng sounds grate, can you pls show which codes for KVM you've changed ? so that other users can get benefited.