Alternatives to RSS on virtio-net devices

Hello,

Having worked around the previously reported bizarre linker issues, I can now see this new error:

PMD: virtio_dev_start(): RSS cannot be configured for VirtI/O net devices

If I want to ensure that the flows are sent consistently to the same core on virtio-net to prevent surprises, what are my options?

Given these interfaces are probably slower than physical ones, is RX / TX from a single core a possibility? Distributor? What are people doing to get it to work? Is it better to use some other kind of interface like a fake virtual Intel NIC, where the RSS might be supported, instead?

Thanks,
Matthew.