On 13-07-21, 11:38, Michael S. Tsirkin wrote:

I think we should tweak this such that we add multiple buffers but
only make them visible to host after all add commands were successful.
With split this is possible by deffering avail idx update,
with packed by deferring update of the avail bit in the descriptor.
I'll write a patch to add an API like that to virtio, then we
can switch to that.

That will be great, exactly what we wanted but didn't ask for :)

-- 
viresh