* The descriptor number for the Rx/Tx queue is hard-coded to be 256 by qemu 2.7 and below.
If given a different descriptor number by the upper application,
the virtio PMD generates a warning and fall back to the hard-coded value.
- Rx queue size can be configureable and up to 1024 since qemu 2.8 and above. Rx queue size is 256
+ Rx queue size can be configurable and up to 1024 since qemu 2.8 and above. Rx queue size is 256
by default. Tx queue size is still hard-coded to be 256.
* Features of mac/vlan filter are supported, negotiation with vhost/backend are needed to support them.