PCIe extension exchange system and method, electronic equipment and storage medium

Abstract

The invention discloses a PCIe extension exchange system and method, an electronic device and a computer readable storage medium, the PCIe extension exchange system comprises an exchange logic moduleand a configuration module, the exchange logic module comprises an upstream port, a plurality of downstream ports and a configuration unit, the upstream port is connected with a PCIe root node, each downstream port is connected with the corresponding PCIe terminal node, and the upstream port is connected with each downstream port; each downstream port comprises a configuration interface, the configuration module is connected with each configuration interface through a configuration unit, and the configuration module is used for configuring a connection mode of the PCIe expansion switching system and / or the number of the downstream ports. Therefore, the PCIe extension switching system provided by the invention is achieved by adopting hardware logic, extra resources of the microprocessor module are not needed, and the PCIe extension switching system can be configured in a logic interface mode or a software mode of sending configuration data.

Description

technical field [0001] The present application relates to the field of computer technology, and more specifically, to a PCIe extended switching system and method, an electronic device, and a computer-readable storage medium. Background technique [0002] PCIe (peripheral component interconnect express) is a high-speed serial computer expansion bus standard. PCIe has become the most widely used expansion bus in current computer systems. The PCIe bus uses an end-to-end connection mode, and a PCIe link can only connect to one device. Therefore, when multiple PCIe devices need to be connected and used in the computer system, the PCIe link must be extended, and the extended device has one upstream port and multiple downstream ports. To meet the configuration needs of the extended device, a microprocessor module is usually built into the extended device. On the one hand, this solution will increase the design cost, and on the other hand, it will increase the design complexity and...

AI Technical Summary

Problems solved by technology

In order to expand the configuration needs of the equipment, a microprocessor module is usually built in the expansion equipment. On the one hand, this solution will increase the design cost, and on the other hand, it will increase the design complexity and affect the performance and power consumption of the expansion equipment.

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