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vDPA (virtio data path acceleration) device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. This talk will introduce VDUSE (vDPA device in userspace) which is a Linux driver that builds on vDPA kernel subsystem to provide a framework to implement software-emulated vDPA devices in userspace. The goal of this technology is to provide a new userspace approach for providing an unified storage/networking services for both container and VM workloads. We will discuss the design and implementation of kernel VDUSE module and give some examples to show how to emulate a vDPA device in userspace with VDUSE.