On 10/09/2018 08:08 PM, ]σ§έ Λιαςάη wrote:

Is there a setting to allow/disable spoof checking and trust on VF from SR-IOV device?  Lookin at https://www.libvirt.org/formatdomain.html#elementsDriverBackendOptions can this be done through the driver element?

*<driver name='vhost' txmode='iothread' ioeventfd='on' event_idx='off' queues='5' rx_queue_size='256' tx_queue_size='256'> <host csum='off' gso='off' tso4='off' tso6='off' ecn='off' ufo='off' mrg_rxbuf='off'/> <guest csum='off' tso4='off' tso6='off' ecn='off' ufo='off'/> </driver>*

At the moment i have to manually run:  ip link set $_dev vf $vf spoofchk off ip link set $_dev vf $vf trust on

Is it possible to set this values from the xml file on a per interface basis?

spoofchk didn't exist in SRIOV network devices at the time support for SRIOV VFs was added to libvirt, and in the time since spoofchk was introduced, nobody has had any pressing need to add it. So no, there is no way to set this bit for a VF from libvirt's XML (I hadn't even heard of a separate "trust" setting, or maybe I've seen it but have forgotten.)