A method and device for accessing computer system and high-speed peripheral component interconnection terminal equipment

Abstract

Examples of the present invention involve the access method, computer system, and devices of a high -speed peripheral component interconnection endpoint device, monitor the statement status of the access request sent by the processor, and determine that the PCIe endpoint device does not send the request of the access request for the request of the visiting request.Clear the cache's access request, keep the processing of the processor normal, and avoid the MCE reset problem caused by the accumulation of access requests in the processor.

Description

technical field [0001] The embodiment of the present invention relates to computer technology, in particular to a high-speed peripheral component interconnection endpoint device access method, computer system and device. Background technique [0002] The abbreviation of Peripheral Component Interconnect Express (PCIe) is a high-performance system bus used on computing and communication platforms. The PCIe bus is widely used in interconnection systems of CPUs and peripheral devices, and as a core business channel in computing and storage devices. There can be many kinds of peripheral devices interconnected with the CPU through the PCIe bus, such as network card devices or solid state disks (Solid State Disk, SSD), etc., and such devices are collectively referred to as PCIe endpoint devices in this document. [0003] The PCIe bus is widely used as the bus interface of servers or storage systems. When the system is running normally, due to the requirements of online expansion ...

AI Technical Summary

Problems solved by technology

However, in recent years, the PCIe bus has gradually developed from the interconnection within the system to the interconnection between systems. The number of external cables and other applications has increased, and the cables are easy to fall off abnormally, and PCIe endpoint devices are abnormally offline without prior notice.

In addition, it is more and more common for users to directly connect to the system using SSDs. Due to user habits, users may directly insert and remove SSDs without prior notice.

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