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

Or Gerlitz
2010-02-01T15:47:43Z

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.