tripleo-heat-templates/releasenotes/notes/add-computevdpa-role-1f7c5d...

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features:
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The libvirt driver has added support for hardware-offloaded OVS
with vDPA (vhost Data Path Acceleration) type interfaces.
vDPA allows virtio net interfaces to be presented to the guest while
the datapath can be offloaded to a software or hardware implementation.
This enables high performance networking with the portablity of standard
virtio interfaces.
Nova added support for vhost-vdpa devices in Wallaby.