Re: [PATCH qemu-kvm] Add raw(af_packet) network backend to qemu

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Anthony Liguori wrote:
Considering VEPA enabled hardware doesn't exist today and the standards aren't even finished being defined, I don't think it's a really strong use case ;-)

Anthony,

VEPA enabled NIC hardware is live and kicking, maybe even @ your onboard 1Gbs NIC: the intel 82576 (<-- Linux igb network driver) supports SR-IOV && VEPA:

1. register exists which dictates whether the NIC does switching between the different VFs or just send every packet transmitted from the VF to the "uplink" PF

2. a logic exists which makes sure a "downstream" (incoming from the network) packet is never sent to a VF who has the source mac of this packet, which account for multicast support.

To learn more about that, see the "Intel 82576 SR-IOV Driver Companion Guide", available on the web.

Or.


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