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PCIE (Peripheral part Interface Express) equipment enumeration method and system, storage medium and equipment

A device enumeration and device technology, applied in the server field, can solve problems such as prolonged BIOS startup time, optimize overall performance indicators, and solve the effect of reducing bandwidth and speed

Active Publication Date: 2021-11-23
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Application Information

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Problems solved by technology

[0003] However, the above strategy will cause the BIOS startup time to be extended by at least 20S (the specific extension time is related to the amount of memory inserted)
For storage devices, BIOS startup time is one of the important indicators to measure device performance, and the above strategies will have a certain impact on this indicator

Method used

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  • PCIE (Peripheral part Interface Express) equipment enumeration method and system, storage medium and equipment

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0041] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities with the same name or different parameters. It can be seen that "first" and "second" " is only for the convenience of expression, and should not be understood as limiting the embodiment of the present invention. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, of a process, method, system, product or other steps or elements inherent in a process, method, system, product, or device comprising a series of steps or elements.

[0042] Based on the above purpo...

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Abstract

The invention provides a PCIE (Peripheral part Interface Express) equipment enumeration method and system, a storage medium and equipment. The method comprises the following steps: if a BIOS (Basic Input / Output System) is powered on, performing PCIE link training on PCIE equipment to obtain link information of the PCIE equipment, and judging whether the link information meets a preset link requirement or not; if the link information does not meet the preset link requirement, performing PCIE link training on the PCIE equipment again to obtain new link information of the PCIE equipment, and sending the new link information to the CPLD; if the BIOS finishes starting, sending a mark of starting completion to the CPLD, and detecting whether the BIOS finishes starting or not by the CPLD based on the mark; if it is detected that the BIOS is started and it is confirmed that the received new link information does not meet the preset link requirement, resetting the PCIE equipment; If the resetting is completed, enumerating the PCIE equipment by the BIOS. According to the method and the device, the problem of reducing the bandwidth and the rate of the PCIE equipment is solved, and the starting time of the BIOS is not additionally increased.

Description

technical field [0001] The present invention relates to the technical field of servers, in particular to a PCIE device enumeration method, system, storage medium and device. Background technique [0002] When some CPUs (central processing units) are running, there will be probabilistic lane (bandwidth) problems for some PCIE (peripheral component interconnect express, a high-speed serial computer expansion bus standard) devices, such as the domestic Haiguang CPU. In response to this problem, the strategy provided by Haiguang is to prolong the unreset time of the PCIE device, and then after the completion of the reset of the PCIE device, the BIOS starts to enumerate the PCIE device. [0003] However, the above strategy will cause the BIOS startup time to be extended by at least 20 seconds (the specific extension time is related to the amount of memory inserted). For a storage device, the boot time of the BIOS is one of the important indicators for measuring the performance o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42G06F11/30G06F11/14
CPCG06F11/1441G06F13/4282G06F11/3027G06F2213/0026
Inventor 吴常顺孔维宾
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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