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PCI (Peripheral Component Interconnect) equipment hot restart method and system and related components

A PCI device and hot restart technology, applied in the server field, can solve problems such as the inability to support the hot restart function of PCI devices

Pending Publication Date: 2022-05-10
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the emerging ARM (Advanced RISC Machine, the first RISC microprocessor with low power consumption and cost designed by Acorn Co., Ltd. of the United Kingdom) server chip design does not have this systemReset signal, and cannot support hot restart of PCI devices through the above method Function

Method used

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  • PCI (Peripheral Component Interconnect) equipment hot restart method and system and related components
  • PCI (Peripheral Component Interconnect) equipment hot restart method and system and related components
  • PCI (Peripheral Component Interconnect) equipment hot restart method and system and related components

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Embodiment Construction

[0034] The core of the present application is to provide a PCI device hot restart method, system, device and computer-readable storage medium, the GPIO signal interface of the ARM processor is physically connected with the Reset signal interface of the PCI slot of x16 bandwidth, through each GPIO The GPIO signal output by the signal interface can realize hot restart of PCI devices with different bandwidths.

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative effor...

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Abstract

The invention discloses a PCI device hot restart method, system and device and a computer readable storage medium. The PCI device hot restart method comprises the steps that GPIO state values, used for executing hot restart operation, of PCI slot positions of all bandwidths are obtained; determining an output state value of each GPIO signal interface according to the GPIO state value; and controlling each GPIO signal interface to output a GPIO signal according to the respective corresponding output state value, and delaying a preset time, so that the PCI equipment connected with the PCI slot position of each bandwidth is subjected to hot restart. According to the invention, the GPIO signal interface of the ARM processor is physically connected with the Reset signal interface of the PCI slot position with the x16 bandwidth, and the warm restart of PCI equipment with different bandwidths can be realized through the GPIO signal output by each GPIO signal interface.

Description

technical field [0001] The present application relates to the field of servers, in particular to a PCI device hot restart method, system and related components. Background technique [0002] At present, PCI (Peripheral Component Interconnect, peripheral component interconnection standard) bus is the most used in server products. PCI devices mounted on the PCI bus include but are not limited to PCI standard network cards, PCI standard NVME (Non Volatile Memory Express , non-volatile memory host controller interface specification) hard disk, PCIE (Peripheral Component Interconnect Express, high-speed serial computer expansion bus standard) standard memory card, etc. These PCI devices need to perform a hot restart operation when the system is hot restarted, so that the driver of the PCI device can be obtained again during the startup process of the server and can be used normally. In order to improve the hot restart efficiency of the PCI device, hardware engineers in When desi...

Claims

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1438
Inventor 孙秀强黄家明李双庆李道童
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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