Open Stack

Hello,

Consequently to some network problems with the Intel 10Gbps (10G 2P X520) and the ixgbe driver, I
needed to disable some segment offloading features (LRO) of these cards. In the process I reviewed
some pieces of code and it appears that libvirt is able to do the same and let the options be
configurable into the domain format.

The feature description is self-explanatory:

 Add options for tuning segment offloading:
 <driver>
 <host csum='off' gso='off' tso4='off' tso6='off'
 ecn='off' ufo='off'/>
 <guest csum='off' tso4='off' tso6='off' ecn='off' ufo='off'/>
 </driver>
 which control the respective host_ and guest_ properties
 of the virtio-net device.
 
The related libvirt commit is https://www.redhat.com/archives/libvir-list/2014-September/msg01159.html

Is it planned to add these options into the flavor or image properties, like for example the NUMA
topology ?
It would add some extra control for operators at a minimal cost.

Thanks,
Regards