On 6/11/2024 3:41 PM, Doug Miller wrote:
We are adding support for a new adapter to the hfi1 driver. This new adapter supports SR-IOV and we need a way to communicate between VFs and PFO. There are some resources that need to be requested from the VFs and some notifications needed from PF0 to the VFs. I am looking at using virtqueues to allow a VF running in a VM to communicate with PF0 on the host, but am not sure how virtio devices/drivers should be used for this. Is there a general-purpose message-passing virtio device that can be used for this? Or do we have to create a new device specifically for our driver to use? Or is there some other communication mechanism that is better suited for this? Thanks, Doug
It looks like rpmsg (over virtio) may be what we're looking for. Is this the kind of thing rpmsg is suited for? Communication between drivers running in different "realms"? External recipient
