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Method and device for implementing peripheral element interface accelerate bus inserted card hot-plug

A peripheral component and hot-swappable technology, applied in the electronic field, can solve problems such as inconvenience and hardware redundant operation, and achieve the effects of reducing costs, simplifying operation steps, and reducing hardware complexity

Active Publication Date: 2009-06-24
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for realizing hot plugging of PCIe cards, which provides overall hot plugging support for cards including multiple PCIe devices, so as to solve the problem of preparing a PCIe device for each PCIe device in the prior art. Set of hot-swappable circuits cause hardware redundancy and inconvenient operation

Method used

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  • Method and device for implementing peripheral element interface accelerate bus inserted card hot-plug
  • Method and device for implementing peripheral element interface accelerate bus inserted card hot-plug
  • Method and device for implementing peripheral element interface accelerate bus inserted card hot-plug

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Embodiment Construction

[0039] The present invention will be further described below with specific embodiments in conjunction with the accompanying drawings.

[0040] The invention discloses a method for realizing hot plugging of PCIe plug-in cards, the first embodiment of which is as follows image 3 shown, including the following steps:

[0041] S301. Set a set of hot-swap circuits controlled by ACPI firmware on the system bottom board for the plug-in cards including multiple PCIe devices.

[0042] Unlike the prior art that provides each PCIe device with a set of hot-swap circuits including power control lines, indicator lights, buttons, slots, etc., in the embodiment of the present invention, the plug-in card that includes multiple PCIe devices is viewed as As a whole, only one set of hot-swap circuits are set on the system backplane. The hot-swapping circuit feeds back the insertion or removal event of the plug-in card to the firmware supporting ACPI on the backplane, and accepts the control of t...

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Abstract

The invention discloses a method for realizing the hot plugging and unplugging of peripheral element interface acceleration bus PCIe plug-in cards. Inserting and unplugging the circuit; then the ACPI firmware processes the plug-in or unload event fed back by the hot-plug circuit, and performs the hot-plug operation of the plug-in card in combination with the operating system. The invention also discloses a PCIe hot plugging system bottom board. The method and device embodiment of the present invention can realize the overall hot-swapping including multiple PCIe device cards by modifying the hot-swapping support details of the ACPI firmware, and at the same time reduce the number of hot-swapping support lines in the system, which can reduce hardware complexity, reduce costs and simplify operations.

Description

technical field [0001] The invention relates to electronic technology, in particular to a method and device for realizing hot plugging of PCI Express (PCI Express, peripheral component interface acceleration bus) plug-in cards. Background technique [0002] At present, PCI (Peripheral Component Interconnect, peripheral component expansion interface) has become a bus standard commonly supported by computer equipment. Its biggest feature is its hot-swappable function, which allows users to connect peripheral devices without shutting down or suspending the application computer. The addition or removal of equipment can improve the availability of the system, and it is also convenient to replace the faulty equipment in time when the equipment fails. With the development of computer technology and the continuous expansion of application fields, PCIe technology with higher transmission rate based on PCI standard modification has emerged, and a new hot-plug (Hot-Plug) technology nee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/10G06F13/40
Inventor 瞿凯
Owner NEW H3C TECH CO LTD
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