Hyperscale vDPA: Scaling Virtual Data Path Acceleration
Explore the concept of Hyperscale vDPA in this 23-minute conference talk by Jason Wang from Red Hat. Delve into the hardware and software perspectives of VDPA devices, examining their architecture and the demand for hyper-scalability. Learn about challenges and solutions, including lightweight VDPA instances and scaling virtio-net-pci instances. Discover how VDPA addresses hyper-scalability through software CVQ and managed devices. Investigate virtio spec modifications for scaling, managed device capabilities, and improvements to virtio-pci and virtio for hyper-scalability. Examine secure DMA contexts for VDPA, including transport-specific and vendor-specific methods. Understand fine-grain DMA isolation, spec support for PASID and device MMU, as well as interrupt scalability for VDPA. Gain insights into VDPA provisioning and access valuable references to enhance your understanding of this advanced networking technology.