Error injection method and device for expansion bus of high-speed serial computer

Abstract

The invention provides an error injection method for an expansion bus of a high-speed serial computer. The method which is applied to a controller of a PCIe bus of the expansion bus of the high-speed serial computer and comprises the following steps: configuring a register for recording errors; sending a first request to slave equipment of the PCIe bus, so that the slave equipment closes the automatic response function of a second request; sending the second request to the slave equipment to trigger the slave equipment to send an error injection data packet to a controller of the PCIe bus; receiving the error injection data packet; and querying the register to determine whether the error of the error injection data packet is processed or not. According to the invention, the errors can be flexibly injected into a PCIe controller, so that the processing modes of the PCIe bus on various types of errors are flexibly verified.

Description

technical field [0001] The invention relates to the technical field of processors, in particular to a high-speed serial computer expansion bus error injection method and device. Background technique [0002] The high-speed serial computer expansion bus PCIe bus is a widely used computer bus, which has the characteristics of point-to-point, high bandwidth and reliable transmission. In the standard of the bus, the error handling method is stipulated. However, the verification process of the error handling method is usually realized by the normal communication process between the PCIe bus controller and the slave device, which is difficult to make The error is reproduced, and it is not possible to flexibly verify how the PCIe bus handles various types of errors. Contents of the invention [0003] The high-speed serial computer expansion bus error injection method and device provided by the present invention can flexibly inject errors into the PCIe controller, thereby flexibl...

AI Technical Summary

Problems solved by technology

In the standard of the bus, the error handling method is stipulated. However, the verification process of the error handling method is usually realized by the normal communication process between the PCIe bus controller and the slave device, which is difficult to make Error reproduction, unable to flexibly verify how the PCIe bus handles various types of errors

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