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Hot-plug control circuit and control method thereof

A control circuit and hot-swap technology, applied in the field of circuits, can solve the problems of complex hardware logic, occupying motherboard area, and high cost of hardware control circuits, and achieve the effect of simplifying hardware logic and reducing costs.

Active Publication Date: 2016-09-21
MACROSAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the improvement of the processing capability of network equipment, more and more HBA cards are deployed on the main control board of the network equipment, so a large number of hardware control circuits need to be deployed on the main control board. The hardware logic is very complicated, and a large number of hardware control boards are deployed. The cost of the circuit is very high, taking up a lot of area of ​​the motherboard

Method used

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  • Hot-plug control circuit and control method thereof
  • Hot-plug control circuit and control method thereof
  • Hot-plug control circuit and control method thereof

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Embodiment Construction

[0027] The terminology used in the present invention is for the purpose of describing specific embodiments only, not limiting the present invention. As used herein and in the claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0028] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present invention, first information may also be called second information, and similarly, second information may also be called first information. Dep...

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Abstract

The invention provides a hot-plug control circuit and a control method thereof. The hot-plug control circuit specifically comprises a CPLD and an MOS transistor, wherein the CPLD specifically comprises an LPC coding / decoding model and a hot-plug control module; the LPC coding / decoding module is used for receiving a writing command from a central processing unit CPU, analyzing a hot-plug single board identifier and a control type from the writing command when receiving the writing command, and providing the hot-plug single board identifier and the control type to the hot-plug control module; and the hot-plug control module is used for controlling a hot-plug single board corresponding to the hot-plug single board identifier by utilizing the control type after obtaining the hot-plug single board identifier and the control type. Through the hot-plug control circuit and the control method thereof, only one hot-plug control circuit is deployed when more and more hot-plug single boards are deployed on a main control panel, so that the hardware logic of the main control panel is simplified.

Description

technical field [0001] The invention relates to the technical field of circuits, in particular to a hot swap control circuit and a control method thereof. Background technique [0002] For high-availability network devices (such as servers, network switches, storage devices, etc.), it is necessary to have a close to zero downtime rate throughout the service life cycle. If a single board of a network device (such as an HBA (Host Bus Adapter, host bus adapter) card, etc.) fails or needs to be upgraded, the board needs to be replaced without interrupting other A single board that fails or needs to be upgraded is removed from the network device, and a new single board is inserted into the network device. This process is called a hot-swapping process, and this single board is called a hot-swappable single board. [0003] The HBA card is usually deployed on the main control board or the backplane. During the hot-swapping process, the HBA card needs to perform data interaction wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
CPCG06F13/4081Y02D10/00
Inventor 杨维宇
Owner MACROSAN TECH