Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND bit and vq state

Michael S. Tsirkin
2023-09-20T14:13:51Z

On Wed, Sep 20, 2023 at 01:41:00PM +0000, Parav Pandit wrote:
> 12. Some how register access on single physical card for the PFs and VFs gives better QoS guarantee than virtqueue as registers can scale infinitely no matter how many VFs or for multiple VQs because it is per VF.
>

This makes some sense as memory accesses to independent devices do not
need to be ordered. AQ's answer is multiple queues and out of order
execution within the queue. Not sure whether this is good enough.