Power supply fault reporting method

Abstract

The invention provides a power supply fault reporting method. A substrate management controller generally does not access a fault register of a power supply unit, and only when the power supply unit sends a fault alarm signal, a field programmable gate array chip informs the substrate management controller that the power supply unit has a fault, and, at the moment, the BMC accesses the fault power supply unit through the baseboard management controller, collects fault information and reports a log. According to the power supply fault reporting method, the busy condition of the I2C bus connecting the substrate management controller and the power supply unit is greatly reduced, the I2C bus competition between the substrate management controller and the Intel management engine is reduced, and meanwhile the CPU utilization rate of the substrate management controller is reduced.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a power failure reporting method. Background technique [0002] The baseboard management controller (BMC) is an independent board on the main board of the server. It has its own independent processor and control system. It communicates with the host hardware or host system through IPMB, LPC (low-pin-count-interface), SMBus and other interfaces. Communicate and transmit to local host / remote server through network, serial / Moderm, PCI and other interfaces to provide query and control functions. [0003] Along with the diversity of combinations of various components of servers, more and more servers require high power consumption to meet the business load of customers. The power supply unit, referred to as PSU or power supply, is a power conversion type of power supply for computers (different from battery-powered power supplies), responsible for converting standa...

AI Technical Summary

Problems solved by technology

However, there are many types of PSU registers (status, voltage, current, power consumption, etc.), and the BMC often collects the relevant register data of the PSU (PSU manufacturer, PSU model, PSU status, EEPROM, etc.) through polling. When there are many PSU-related registers collected, BMC and ME have dual-master competition on the I2C bus, which increases the probability of I2C access failure; on the other hand, BMC usually uses round-robin training to access PSU, which will occupy more BMC resources.

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