Control device and method supporting single IO (Input/Output) virtual user level interface
An interface control, user-level technology, applied in instruments, electrical digital data processing, digital transmission systems, etc., can solve problems such as the inability of user-level communication efficiency and the inability of traditional network interface controllers to share access directly.
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[0094] Specific embodiments of the present invention are given below, and the present invention is described in detail in conjunction with the accompanying drawings.
[0095] The invention provides a network interface controller that supports Single Root IO Virtualization (SR-IOV: Single Root IO Virtualization) and provides a user-level communication interface, and provides its usage method. The network interface controller of the present invention provides a flexible and efficient user-level communication interface for applications running on the virtual machines while being directly accessed by multiple virtual machines; when several virtual machines share access to the network, the present invention The network interface controller can meet the quality of service (QoS) requirements of virtual machines for network access.
[0096] In order to achieve the Pass-through IO access of the client virtual machine to the device, on the basis of the physical function PF (Physical Fun...
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