Configuration method and device of PCIe (peripheral component interface express) topology

Abstract

An embodiment of the invention provides a configuration method and device of a PCIe (peripheral component interface express) topology. The method includes: acquiring an identifier 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 determining a current connectional relation between each PCIe device and the corresponding PCIe slot according to the identifiers of the PCIe slots and the device information of the PCIe devices; correcting configuration of a PCI3 switch chip according to the current connectional relation between each PCIe device and the corresponding PCIe slot. When a new application scenario occurs, just after a user adjusts the connectional relations between the PCIe devices and the PCIe slots, the device can automatically correct the configuration of the PCIe switch chip according to the adjusted connectional relations so as to complete the configuration of the PCIe topology, with no need for adding a single board; accordingly, server cost is reduced. In addition, changes in the PCIe topology allow one single board to support various 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 to 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, and insertin...

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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