Configuration method and device of pcie topology

Abstract

Embodiments of the present invention provide a PCIe topology configuration method and device, including: acquiring identification information of each PCIe slot connected to a single board of a server and device information of a PCIe device connected to each PCIe slot, and according to the The identification information of each PCIe slot and the device information of each PCIe device determine the current connection relationship between each PCIe device and each PCIe slot; according to the connection between each PCIe device and each PCIe slot The current connection relationship modifies the configuration of the PCIe switch chip. When a new application scenario appears, the user only needs to adjust the connection relationship between the PCIe devices and the PCIe slots, and the device will automatically modify the configuration of the PCIe switch chip according to the adjusted connection relationship, so as to The configuration of the PCIe topology is completed without adding a single board, thereby reducing the cost of the server. In addition, by changing the PCIe topology, a single board can support multiple application scenarios.

Description

technical field [0001] Embodiments of the present invention relate to data communication technologies, and in particular to a method and device for configuring a PCIe topology. Background technique [0002] The scalability of the server is an important performance of the server. The scalability of the server means that the hardware configuration of the server can be flexibly configured according to the needs, such as memory, adapter, solid state disk (Solid State Disk, SSD for short), processor, etc. The scalability of the server can be realized by adding Peripheral Component Interconnect express (PCIe) slots on the single board. Each PCIe slot can be inserted with a PCIe card, and multiple PCIe cards can be connected to each other. Different PCIe devices meet the requirements of different users and different application scenarios. For example, inserting a Graphic Processing Unit (GPU) in the PCIe slot can expand the video processing capability of the server, inserting an SS...

AI Technical Summary

Problems solved by technology

[0004] Because the application scenarios generally conflict with each other, it is difficult for the PCIE topology of the hardware design to meet the requirements of all application scenarios. Therefore, it is necessary to add redundant boards to meet the requirements of different application scenarios, which will increase the cost of the server. Well, it will not be able to be changed in the future. When a new application scenario appears, the board needs to be redesigned, which will also increase the cost of the server

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