High-speed serial computer expansion bus error note method and device

Abstract

The invention provides a high-speed serial computer expansion bus error note method, which is applied to a controller of a high-speed serial computer expansion bus PCIe bus, comprising: configuring a register for recording errors; sending a first request to a slave device of the PCIe bus, to make the slave device turn off the automatic response function of the second request; send a second request to the slave device to trigger the slave device to send an error-injected data packet to the controller of the PCIe bus; receive the Incorrect data packet; query the register to determine whether to handle the error of the incorrect data packet. The invention can flexibly inject errors into the PCIe controller, so as to flexibly verify the handling methods of the PCIe bus for various types of errors.

Description

technical field [0001] The present invention relates to the technical field of processors, and in particular, to a method and device for injecting errors in a high-speed serial computer expansion bus. Background technique [0002] High-speed serial computer expansion bus PCIe bus is a widely used computer bus with the characteristics of point-to-point, high-bandwidth and reliable transmission. In the standard of this bus, the error handling method is stipulated, but the verification process of the error handling method is usually realized by the normal communication process between the controller and the slave device of the PCIe bus, which is difficult to make The error is reproduced, and it is not flexible to verify how the PCIe bus handles various types of errors. SUMMARY 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 f...

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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