[dpdk-dev] [PATCH v2 7/7] virtio: add 1.0 support

[Yuanhan Liu]

On Thu, Jan 14, 2016 at 07:47:17AM +0000, Xie, Huawei wrote:
> On 1/12/2016 2:58 PM, Yuanhan Liu wrote:
> > Modern (v1.0) virtio pci device defines several pci capabilities.
> [snip]
> > +static void
> > +modern_notify_queue(struct virtio_hw *hw __rte_unused, struct virtqueue *vq)
> > +{
> > +	modern_write16(1, vq->notify_addr);
> > +}
> 
> Does virtio 1.0 only supports MMIO? MMIO has long VMEXIT latency than
> PORT IO.

Virtio 1.0 supports three transport layer, including MMIO and PCI. And
we use PCI only in our pmd driver.

	--yliu