[dpdk-dev] Alternatives to RSS on virtio-net devices

Matthew Hall mhall at mhcomputing.net
Tue Oct 14 09:07:13 CEST 2014


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.


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