Peripheral Component Interconnect-Express (PCIe) device shared network generation method and apparatus, and system

Abstract

The present invention discloses a Peripheral Component Interconnect-Express (PCIe) device shared network generation method and apparatus, and a system. A specific implementation manner of the method includes the steps of acquiring device information of at least one PCIe device; setting a virtual memory address for the PCIe device according to the device information; setting a connection relationship between a PCIe switch network and the PCIe device; and establishing a correspondence relationship table of a PCIe switch and the PCIe device by using the connection relationship, and generating the PCIe device shared network according to the correspondence relationship table, wherein the correspondence relationship table includes the device information and the virtual memory address. Through adoption of the implementation manner, all PCIe hosts connected with the PCIe device shared network can access the PCIe devices on the PCIe device shared network by using the virtual memory address, a quantity of the PCIe devices that the PCIe hosts can access may exceed a limited quantity of local PCIe slots of the PCIe hosts, and the PCIe device can be shared and used by different PCIe hosts according to needs, so that the use ratio of the PCIe device is improved.

Description

technical field [0001] The present application relates to the technical field of information processing, specifically to the technical field of network data processing, and in particular to a method, device and system for generating a PCIe device sharing network. Background technique [0002] A PCIe (Peripheral Component Interconnect-Express) device refers to a device that is connected to other devices (such as a computer motherboard) through a PCIe interface for data processing. Common PCIe devices include graphics cards, network cards, and solid-state drives. The PCIe interface belongs to high-speed serial point-to-point dual-channel high-bandwidth transmission. The connected devices are allocated exclusive channel bandwidth and do not share bus bandwidth. Its main advantage is high data transmission rate and considerable development potential. [0003] Existing PCIe devices are often set in the PCIe host (an electronic device that interacts with the PCIe device) for separ...

AI Technical Summary

Problems solved by technology

[0003] Existing PCIe devices are often set in the PCIe host (an electronic device that interacts with the PCIe device) for separate access by the PCIe host, but the PCIe slots of the PCIe host are limited, and only a small number of PCIe devices can be set; and, different PCIe hosts Included PCIe devices may be different, which leads to low utilization of PCIe devices

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