WO2009149637A1 - 支持热插拔的方法、系统和单板 - Google Patents

支持热插拔的方法、系统和单板 Download PDF

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Publication number
WO2009149637A1
WO2009149637A1 PCT/CN2009/071875 CN2009071875W WO2009149637A1 WO 2009149637 A1 WO2009149637 A1 WO 2009149637A1 CN 2009071875 W CN2009071875 W CN 2009071875W WO 2009149637 A1 WO2009149637 A1 WO 2009149637A1
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WO
WIPO (PCT)
Prior art keywords
board
power
load power
rear board
ipmc
Prior art date
Application number
PCT/CN2009/071875
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English (en)
French (fr)
Inventor
李善甫
张光钧
黄英冬
王更
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09761262.6A priority Critical patent/EP2237475B1/en
Publication of WO2009149637A1 publication Critical patent/WO2009149637A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/40—Constructional details, e.g. power supply, mechanical construction or backplane

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, system, and board for supporting hot swap.
  • ATCA Advanced Telecom Computing Architecture
  • the IPMI Intelligent Platform Management Interface
  • the IPMC Intelligent Platform Management Controller, Intelligent Platform
  • the management controller is a management component that communicates with the shelf management unit (Shelf Manager) through an IPMB (Intelligent Platform Management Bus), and the power conversion/control module on the board is responsible for receiving the backplane power input, and The management power and load power conversion required for the board is completed.
  • the management power output is sent to the IPMC and other related circuits, and the load power is supplied to the load circuit.
  • the power conversion/control module When the ATCA board is inserted into the backplane, the power conversion/control module directly outputs the management power to the IPMC, causing it to power up and start working normally. After a certain condition is met (such as the spanner of the board is closed), the IPMC communicates with the chassis management unit. After obtaining the permission of the chassis management unit, the IPMC enables the load power enable signal of the power conversion/control module. After receiving the signal, the conversion/control module outputs the load power and supplies it to the load circuit.
  • the ATCA specification defines two types of boards, the front and rear transition modules (RTM). As shown in Figure 2, it is the structural diagram of the front and rear boards.
  • the front board has three connectors, a Zonel area, a Zone 2 area, and a Zone 3 area connector, wherein the Zonel area connector is used to provide power and management plane signals for the front board, and the Zone 2 area connector is used to provide front board control plane signals. , data plane signals and clock signals, Zone3 zone connectors are used for user-defined connections.
  • the front board is inserted into the ATCA chassis from the front of the chassis, and is connected to the backplane through the Zonel and Zone2 connectors, including the power and signal connections.
  • the rear board is inserted into the ATCA chassis behind the chassis and connected to the corresponding front board through the Zone3 connector, including the power and signal connections.
  • Two of the front and rear boards are installed separately A wrench, an upper wrench and a lower wrench are used to insert and remove the board.
  • a micro switch is installed at the lower wrench position of the front insert plate, and when the lower wrench is opened or closed, the micro switch will be in different switch states respectively.
  • the IPMC on the front board can detect whether the lower wrench is open or closed by detecting the status of the micro switch signal connected to the micro switch.
  • the power of the rear board is provided by the load power output of the power conversion/control module of the front board, and is provided to the rear board circuit through the Zone 3 area connector, including the rear board management circuit and the rear board load circuit.
  • the power supply of the front board to the rear board through the Zone3 area connector is the load power source, and the current is usually relatively large. In order to avoid the sudden change of the large current during the plugging and unplugging process, the board needs to be damaged. During the insertion and removal of the rear card, disconnect the power supply of the rear card.
  • One method is to open the front board's wrench before inserting the front board or before inserting the board, so that the front board is inactive. Since the power conversion/control module does not output the load power, the rear board can be guaranteed. There is no power supply, which disconnects the supply of the rear-panel load power supply and also disconnects the front-panel load power supply.
  • the embodiment of the invention provides a method, a system and a board for supporting hot plugging.
  • the technical solution is as follows:
  • an embodiment of the present invention provides a method for supporting hot plugging, where the method includes:
  • the front board detects the state of the wrench of the connected rear board; according to the result of the detection, controls whether to output the load power to the rear board.
  • an embodiment of the present invention provides a system for supporting hot plugging, the system includes a front board and a rear board connected thereto; the front board, a wrench for detecting the rear board a state, controlling whether to output a load power to the rear card according to the result of the detecting; and the rear board for receiving power from the front board.
  • the embodiment of the present invention further provides a board, where the board includes: a control module and a rear board power module connected thereto, and the rear board power module is further connected to the back board; a control module, configured to detect a wrench state of the rear card, and send a rear card load power control signal to the rear card power module according to the detection result; the rear card power module is configured to receive according to the received The rear board load power control signal sent by the control module outputs or stops outputting the load power to the rear board.
  • the embodiment of the invention determines the state of the rear board wrench and controls the output or the load of the rear board according to the judgment result.
  • the power supply manages the load power of the front board and the rear board respectively, realizes the hot plugging of the rear board, and does not need to interrupt the service of the front board during the insertion and extraction of the rear board, and improves the service.
  • the maintainability of the rear card DRAWINGS
  • FIG. 1 is a schematic diagram of the principle of management and control of a single board power supply by the IPMI specification in the prior art
  • FIG. 2 is a schematic structural view of a front insert plate and a rear insert plate in the prior art
  • FIG. 3 is a flowchart of a method for supporting hot plugging according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of state transition of a single board according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for supporting hot plugging according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of a power supply of a front board to control a rear board according to Embodiment 1 of the present invention
  • FIG. 7 is another schematic diagram of a power supply of a front board to control a rear board according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic structural view of a system for supporting hot plugging according to Embodiment 2 of the present invention.
  • FIG. 9 is another schematic structural diagram of a system for supporting hot plugging according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic structural diagram of another system for supporting hot plugging according to Embodiment 2 of the present invention.
  • FIG. 11 is a schematic structural view of a front board according to Embodiment 3 of the present invention.
  • FIG. 12 is another schematic structural diagram of a front board according to Embodiment 3 of the present invention.
  • Figure 13 is a schematic view showing still another structure of the front board provided in Embodiment 3 of the present invention. detailed description
  • the embodiment of the invention provides a method for supporting hot plugging.
  • the method specifically includes: 301: The front board detects the state of the wrench of the connected rear board;
  • the front board controls whether to output the load power to the rear board according to the result of the detection.
  • the state of the rear board changes with the state of the front board
  • the status of the front board usually has the following types: uninserted state M0, inactive state M1, received activation request state M2, active
  • the state M3, the activated state M4, the deactivation request state M5 and the deactivation state M6 are received, and accordingly, the rear card also has the above various states.
  • Figure 4 for a schematic diagram of board transitions.
  • the board in the figure refers to the front board.
  • the M0 state refers to a state in which the front card is not fully inserted into the backplane of the chassis. When the front board is fully inserted into the backplane but the wrench is not closed, the front board is in the M1 state. At this time, the management power of the front board has been output.
  • the management related circuits such as IPMC are powered on and start working, but the load power is not available. Output, the front board has not been activated.
  • the M2 enters the M2 state.
  • the IPMC detects that the wrench is closed by the micro switch signal, starts to announce to the chassis management unit that the front board is in place, and applies to the chassis management unit to activate the front board. Enter the M3 status after obtaining the consent.
  • the M3 state the IPMC starts to negotiate power with the chassis management unit.
  • the IPMC controls the power conversion/control module to output the load power.
  • the other parts of the front board are powered normally, and the front board is activated. After that, enter the M4 state, that is, the normal working state.
  • the front board When the wrench of the current board is opened, the front board is in the M5 state, and then the front board is deactivated, the M6 state is entered, the load power supply of the front board is disconnected, the port is not enabled, etc., and the activation is completed to enter the M1 state. .
  • the current board is in the active state M3, if the wrench is opened, the front board is directly switched from the M3 state to the M6 state; or, when the front board is activated in the M4 state, if the wrench is opened, the front board is M4. If the current board is in the M5 state, if the current board is in the M2 state, the current board is in the M4 state. Upon receiving the request to deactivate the board, it directly changes to the M1 state and so on.
  • an embodiment of the present invention provides a method for supporting hot plugging, which specifically includes:
  • the rear board is inserted into the device.
  • the rear board is connected to the front board through the Zone3 area connector. At this time, the rear board may be just inserted into the device state, ready to request power, or ready for service. Electricity.
  • the IPMC in the front board detects the state of the wrench of the rear board. If the wrench sends a power request, that is, from the open state to the closed state, execute 503; if the wrench issues a power failure request, the closed state is changed to When the state is turned on, 508 is performed.
  • a micro switch is mounted on the lower wrench of the rear board, and the micro switch is connected to the IPMC of the front board through the Zone 3 area connector. Specifically, the IPMC detects the state of the wrench of the rear card by detecting the signal of the micro switch.
  • the IPMC determines the status of the front board. Specifically, the state of the front board can be determined by reading the status information of the front board by communicating with the chassis management unit. If the M4 status is activated, executing 504; To activation request M2 If the M3 state is being activated, 505 is performed; if the M5 state is received or the M6 state is being deactivated, 506 is performed; if the M1 state is not activated, 507 is performed.
  • the IPMC negotiates with the chassis management unit.
  • the chassis management unit confirms that the system can meet the load power requirement of the rear board
  • the rear board is activated, and the front board outputs the load power to the rear board, that is, the rear plug The board is powered, so that the rear board is in the M4 state, and the rear board load power loading process ends.
  • the rear board has been transferred from the M1 state to the M2 state, but the front board has the wrench open, starts to be deactivated or is being deactivated, so it is not necessary to activate the rear board.
  • the IPMC reports the state transition event M1->M2 of the rear card to the chassis management unit; when the current card is deactivated by the M5 state or the M6 state to the M1 state, the rear card also returns to the M1 state, and the rear card is inserted. The load power loading process ends.
  • the IPMC turns off the load power of the rear panel, and reports the state transition event M6->M1 of the rear board to the chassis management unit.
  • the chassis management unit reclaims the power distribution resource and waits for the user to pull out the rear board. This process does not The load power of the front board needs to be turned off, the user pulls out the rear board, the rear board is in the M0 state, and the rear board load power loading process ends.
  • the hot plug management of the front and rear boards is logically separated.
  • the power supply of the IPMC to control the output of the rear board or the power of the back board is various, including but not limited to the following two types:
  • the power conversion/control module 601 of the front board is connected to the rear board power supply 603 through the Zone3 area connector 602, and provides an independent load power channel to the rear board, thereby loading power of the front board. It is managed separately from the load power supply of the rear board.
  • the IPMC 604 provides two load power enable signals, a front board load power enable signal and a rear board load power enable signal, and the power conversion/control module 601 provides a front board according to different received enable signals.
  • the rear board provides load power.
  • two switches may be disposed inside the power conversion/control module 601. The first switch is used to control the load power of the rear board, and the second switch is used to control the load power of the front board.
  • the rear switch load power enable signal is sent to the first switch in the power conversion/control module 601. After the first switch in the power conversion/control module 601 is received, Output load power to the rear board; when IPMC 604 When the load power of the rear board is controlled, the first switch in the power conversion/control module 601 sends a rear load voltage to the enable signal, and after the first switch in the power conversion/control module 601 is received, the output is stopped.
  • the load power is applied to the rear board; in addition, when the IPMC 604 controls the load power of the front board, a control signal is sent to the second switch in the power conversion/control module 601 to control whether the output power is output to the front board, thereby realizing The load power supply of the front and rear boards is separated.
  • the rear board load power control module 701 is added to the front board. If the switch type is used, the rear board load power control module 701 is respectively connected to the IPMC 702 and the load circuit 703. And connected to the rear board power supply 705 through the Zone3 area connector 704, the load power of the load circuit 703 is divided and outputted to the rear board load power control module 701, when the IPMC 702 controls the output load power to the rear board, The rear board load power control module 701 sends the rear board load power enable signal, and after the rear board load power control module 701 receives, the power output from the load power of the load circuit 703 is output to the rear board; When the 702 is controlled to turn off the load power of the rear board, the rear board load power control module 701 sends the rear board load power supply to enable signal, and after the rear board load power control module 701 receives the output, the output from the load circuit 703 is stopped.
  • the power supply from the load power supply is provided to the rear board; in addition, the IPMC 70
  • the IPMC needs to communicate with the chassis management unit.
  • two independent messages are used to implement the interaction between the IPMC and the chassis management unit.
  • One message is used.
  • the front board is inserted and removed, and the other is used for the insertion and removal of the rear board.
  • FRU Field Replaceable Unit
  • the FRU Device ID When a different FRU (Field Replaceable Unit, such as a front panel, a rear card, etc.) under the same IPMC management interacts with the chassis management unit, it is logically distinguished by the FRU Device ID, and the IPMC gives Different FRUs are assigned different IDs. For example, the FRU Device ID assigned by the IPMC to the rear board is 1, and the FRU Device ID assigned to the front board is 0.
  • the IPMC and the chassis management unit When communicating, the FRU Device ID of the rear card is carried in the message for communication. Further, the method further includes: after the IPMC of the current board detects that the wrench of the rear board issues a power-on request, and communicates with the chassis management unit by using a message, and negotiates the load power of the rear board, if the negotiation succeeds, The step of determining the status of the front board by executing the board, wherein the message includes the FRU Device ID number assigned by the IPMC to the rear board. When the IPMC communicates with the chassis management unit to manage the front panel, the communication message carries the FRU Device ID number assigned by the IPMC to the front board.
  • both the front board and the rear board communicate with the chassis management unit through the same IPMC physical entity, but because the FRU Device ID carried in the communication message is different, logically, the front board and the The rear boards interact with the chassis management unit according to their respective power-off processes, and each uses independent messages to realize the management separation of the front and rear boards.
  • the load power of the rear board is separately managed, and the hot plugging of the rear board is realized. Insertion and removal of the rear insert There is no need to interrupt the business of the front board during the process, and the maintainability of the rear board is improved.
  • the hardware structure of the hot plugging of the rear board is simplified, and the system cost and complexity are reduced.
  • the load power supply of the front board to control the rear board can be in the form of a separate output power source, or it can be outputted from the load power source and outputted, and the application is more flexible.
  • an embodiment of the present invention provides a hot swappable system, including a front board 801 and a rear board 802 connected thereto;
  • the front board 801 is configured to detect the state of the wrench of the rear board 802, and according to the result of the detection, control whether to output the load power to the rear board 802;
  • the rear board 802 is for receiving power from the front board 801.
  • the rear board 802 includes a wrench 802a, the wrench 802a has a micro switch 802b, the micro switch 802b is connected to the IPMC 801a of the front board 801, and the front board 801 detects the wrench status of the rear board 802.
  • the signal of the micro switch 802b is detected by the IPMC 801a to determine the state of the wrench of the rear board 802.
  • the micro switch 802b can output different signals according to different states of the wrench 802a to indicate the state of the wrench 802a, for example,
  • the microswitch 802b outputs a closing signal to request energization to the rear card 802 when the wrench 802a is closed, and the microswitch 802b outputs an open signal to request the powering down of the rear card 802 when the wrench 802a is open.
  • the front board 801 includes: an IPMC 801a and a rear board power module 801b connected thereto, and the rear board power module is also connected to the rear board 802;
  • the IPMC 801a is configured to detect the state of the wrench of the rear board 802. When it is detected that the wrench of the rear board 802 issues a power-on request, the status of the front board 801 is determined. If it is activated, the power supply of the rear board is sent. The signal can be sent to the rear board power supply module 801b, when the wrench of the rear board 802 is detected to issue a power failure request, the rear board load power supply is sent to the rear board power supply module 801b;
  • the rear board power supply module 801b is configured to output the load power to the rear board 802 after receiving the rear board load power enable signal sent by the IPMC 801a; after receiving the back board load power sent by the IPMC 801a After the enable signal, the output of the load power is stopped to the rear board 802.
  • an embodiment of the present invention further provides a front board, including: a control module 1101 and a rear board power module 1102 connected thereto, and a rear board power module 1102 is further connected to the rear board;
  • the control module 1101 is configured to detect the state of the wrench of the rear card, and send a rear power supply control signal to the rear power supply module 1102 according to the detection result;
  • the rear board power module 1102 is configured to output or stop outputting the load power to the rear board according to the received rear panel load power control signal sent by the control module 1101.
  • the control module 1101 can be:
  • the rear board power module 1102 is specifically configured to: after receiving the rear board load power enable signal sent by the IPMC, output the load power to the rear board; after receiving the IPMC sent the rear panel load power After the signal is enabled, the output of the load power supply is stopped to the rear board; further, the rear board power supply module 1102 has two specific implementation modes, one of which, referring to FIG. 12, records the control module 1101 as IPMC 1101a.
  • the rear board power module 1102 is: a power conversion/control module 1102a including a first switch 1102al and a second switch 1102a2;
  • the second switch 1102a2 is configured to control whether to output the load power to the load circuit of the front board according to the front board load power control signal sent by the IPMC 1101a; the other components of the front board can be seen in FIG. No longer.
  • the control module 1101 is referred to as IPMC 1101b.
  • the rear board power module 1102 is: a rear board load power control module 1102b, a rear board load power control module 1102b and a front board.
  • the load circuit is connected, and after receiving the rear plug-in load power enable signal sent by the IPMC 1101b, the power output from the load power of the load circuit is output to the rear card, and received by the IPMC 1101b. After the power supply of the rear card is de-energized, the output of the power supply from the load circuit of the load circuit is stopped.
  • the other components of the front board can be seen in Figure 7 and will not be described here.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Computer Networks & Wireless Communication (AREA)
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Description

支持热插拔的方法、 系统和单板 本申请要求于 2008年 6月 10日提交中国专利局、 申请号为 200810114608.1、 发明名称 为 "支持热插拔的方法、 系统和前插板" 的中国专利申请的优先权， 其全部内容通过引用结 合在本申请中。
说
技术领域
本发明涉及通信技术领域， 特别涉及一种支持热插拔的方法、 系统和单板。 背景技术 书
ATCA (Advanced Telecom Computing Architecture, 先进电信计算架构） 是通信设备和计 算服务器通用的硬件平台技术。 ATCA中的 IPMI ( Intelligent Platform Management Interface, 智能平台管理接口）规范对单板电源进行管理控制的原理如图 1所示，在通信设备内部， ATCA 单板中的 IPMC ( Intelligent Platform Management Controller, 智能平台管理控制器）为管理部 件， 通过 IPMB (Intelligent Platform Management Bus, 智能平台管理总线） 与机框管理单元 ( Shelf Manager) 进行通信， 单板上的电源转换 /控制模块负责接收背板电源输入， 并且完成 单板所需要的管理电源和负载电源的转换， 其中管理电源输出给 IPMC等管理相关电路， 负 载电源则提供给负载电路。 当 ATCA单板插入背板后， 电源转换 /控制模块直接输出管理电源 给 IPMC, 使其通电开始正常工作。 在满足一定的条件下 （如单板的扳手合上）， IPMC与机 框管理单元通信， 在获得机框管理单元的允许后， IPMC使能电源转换 /控制模块的负载电源 使能信号， 电源转换 /控制模块接收到该信号后输出负载电源， 供应给负载电路。
ATCA 规范定义了两种类型的单板， 分别是前插板和后插板 （RTM， Rear Transition Module)。 如图 2 所示， 为前插板和后插板的结构图。 前插板有三个连接器， 分别是 Zonel 区、 Zone2区和 Zone3区连接器， 其中 Zonel区连接器用于提供前插板的电源和管理平面信 号， Zone2区连接器用于提供前插板控制平面信号、数据平面信号和时钟信号， Zone3区连接 器用于用户自定义的连接。 前插板由机框前面插入 ATCA机框， 通过 Zonel区和 Zone2区连 接器与背板连接， 包括电源与信号的连接。 后插板由机框后面插入 ATCA机框， 通过 Zone3 区连接器与对应的前插板连接， 包括电源与信号的连接。 前插板和后插板上都分别安装了两 个扳手， 上扳手和下扳手， 应用于对单板进行插拔辅助。 其中， 前插板的下扳手位置还安装 了一个微动开关， 当该下扳手打开或合上时， 微动开关将分别处于不同的开关状态。 前插板 上的 IPMC通过对连接到微动开关上的微动开关信号进行状态检测， 可获知该下扳手处于打 开还是合上状态。
现有技术中，后插板电源由前插板的电源转换 /控制模块输出的负载电源提供，通过 Zone3 区连接器提供给后插板电路， 包括后插板管理电路和后插板负载电路。 其中， 前插板通过 Zone3 区连接器提供给后插板的电源为负载电源， 其电流通常比较大， 为了避免后插板在插 拔的过程中出现大电流的突变， 损坏后插板， 需要在后插板的插拔过程中， 断开后插板电源 的供应。 一种方法是在插入后插板前或拔出后插板前， 打开前插板的扳手， 使前插板处于未 激活状态， 由于电源转换 /控制模块不会输出负载电源， 因此可以保证后插板没有电源供应， 此时既断开了后插板负载电源的供应， 同时也断开了前插板负载电源的供应。
在对现有技术进行分析后， 发明人发现： 现有技术无法支持后插板的热插拔， 在后插板 的插拔过程中必须断开前插板的负载电源供应， 会导致前插板工作的中断， 影响前插板的业 务。 发明内容
为了实现后插板的热插拔， 本发明实施例提供了一种支持热插拔的方法、 系统和单板。 所述技术方案如下：
一方面， 本发明实施例提供了一种支持热插拔的方法， 所述方法包括：
前插板检测相连的后插板的扳手状态； 根据检测的结果控制是否输出负载电源给所述后 插板。
另一方面， 本发明实施例提供了一种支持热插拔的系统， 所述系统包括前插板和与其相 连的后插板； 所述前插板， 用于检测所述后插板的扳手状态， 根据检测的结果控制是否输出 负载电源给所述后插板； 所述后插板， 用于从所述前插板接收电源。
再一方面， 本发明实施例还提供了一种单板， 所述单板包括： 控制模块和与其相连的后 插板电源模块， 所述后插板电源模块还与后插板相连； 所述控制模块， 用于检测所述后插板 的扳手状态， 根据检测的结果发出后插板负载电源控制信号给所述后插板电源模块； 所述后 插板电源模块， 用于根据接收到的所述控制模块发来的后插板负载电源控制信号， 输出或者 停止输出负载电源给所述后插板。
本发明实施例通过判断后插板扳手的状态并根据判断结果控制输出或关闭后插板的负载 电源， 分别对前插板和对后插板的负载电源进行管理， 实现了后插板的热插拔， 在后插板的 插入和拔出过程中都无需中断前插板的业务， 提高了后插板的可维护性。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施例或现有技术 描述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一 些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据这 些附图获得其他的附图。
图 1是现有技术中 IPMI规范对单板电源进行管理控制的原理示意图；
图 2是现有技术中前插板和后插板的结构示意图；
图 3是本发明实施例提供的支持热插拔的方法流程图；
图 4是本发明实施例提供的单板状态转换示意图；
图 5是本发明实施例 1提供的支持热插拔的方法流程图；
图 6是本发明实施例 1提供的前插板控制后插板的电源的一种示意图；
图 7是本发明实施例 1提供的前插板控制后插板的电源的另一种示意图；
图 8是本发明实施例 2提供的支持热插拔的系统一种结构示意图；
图 9是本发明实施例 2提供的支持热插拔的系统另一种结构示意图；
图 10是本发明实施例 2提供的支持热插拔的系统再一种结构示意图；
图 11是本发明实施例 3提供的前插板的一种结构示意图；
图 12是本发明实施例 3提供的前插板的另一种结构示意图；
图 13是本发明实施例 3提供的前插板的再一种结构示意图。 具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描 述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。 基于本发明 中的实施例， 本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方式作进 一步地详细描述。
本发明实施例提供了一种支持热插拔的方法， 参见图 3， 具体包括： 301： 前插板检测相连的后插板的扳手状态；
302： 前插板根据检测的结果， 控制是否输出负载电源给后插板。
在本实施例中， 后插板的状态随前插板的状态而迁移， 前插板的状态通常有以下几种： 未插入状态 M0、 未激活状态 Ml、 收到激活请求状态 M2、 正在激活状态 M3、 已激活状态 M4、 收到去激活请求状态 M5和正在去激活状态 M6， 相应地， 后插板也具有以上各种状态。 参见图 4， 为单板状态转换示意图， 图中的单板是指前插板。 其中， M0状态是指前插板没有 完全插入机框背板的状态。 当前插板完全插入背板但没有合上扳手时， 前插板板处于 Ml状 态， 此时前插板的管理电源已有输出， IPMC 等管理相关电路正常通电并开始工作， 但负载 电源并没有输出， 前插板还未激活。 在前插板扳手合上后， 进入 M2状态， IPMC通过微动开 关信号检测到扳手合上， 开始向机框管理单元宣告前插板在位， 并向机框管理单元申请激活 前插板，在获得同意后进入 M3状态。在 M3状态， IPMC开始与机框管理单元进行电源协商， 在获得机框管理单元的允许后， IPMC控制电源转换 /控制模块输出负载电源， 前插板的其它 部分正常通电， 前插板被激活后， 进入 M4状态， 即正常工作状态。 当前插板的扳手打开时， 前插板处于 M5状态， 然后开始去激活前插板， 进入 M6状态， 断开前插板的负载电源供电、 端口不使能等等， 去激活完成进入 Ml状态。 其中， 当前插板正在激活状态 M3时， 如果扳 手打开， 则前插板由 M3状态直接转换到 M6状态； 或者， 前插板已激活处于 M4状态时， 如果扳手打开， 则前插板由 M4状态直接转换到 M6状态； 或者， 当前插板为 M5状态时， 如果扳手合上且收到激活单板请求， 则直接转为 M4状态； 或者， 当前插板为 M2状态时， 如果扳手打开且收到去激活单板请求， 则直接转为 Ml状态等等。
实施例 1
参见图 5， 本发明实施例提供了一种支持热插拔的方法， 具体包括：
501： 设备内已插入后插板， 该后插板通过 Zone3区连接器与前插板相连， 此时后插板可 能为刚刚插入设备状态， 准备请求通电， 或者为正常运行状态， 准备请求断电。
502： 前插板内的 IPMC检测后插板的扳手状态， 如果该扳手发出通电请求， 即由打开状 态转为闭合状态， 则执行 503 ; 如果该扳手发出断电请求， 即由闭合状态转为打开状态， 则 执行 508。
在本实施例中， 后插板的下扳手上安装有微动开关， 该微动开关通过 Zone3区连接器与 前插板的 IPMC相连。 具体地， IPMC通过检测该微动开关的信号以确定后插板的扳手状态。
503： IPMC判断前插板的状态， 具体地， 可以通过与机框管理单元通信读取前插板状态 信息来判断前插板的状态， 如果为已激活 M4状态， 则执行 504; 如果为收到激活请求 M2状 态或者正在激活 M3状态， 则执行 505; 如果为收到去激活请求 M5状态或者正在去激活 M6 状态， 则执行 506; 如果为未激活 Ml状态， 则执行 507。
504： IPMC与机框管理单元进行电源协商， 在机框管理单元确认系统能够满足后插板的 负载电源需求时， 激活后插板， 前插板输出负载电源给后插板， 即给后插板供电， 使后插板 处于 M4状态， 后插板负载电源加载流程结束。
505： 此时由于后插板的扳手已合上， 后插板已由 Ml状态转移到 M2状态， 但是前插板 处于开始激活或正在激活状态， IPMC向机框管理单元报告后插板的状态迁移事件 M1->M2， 如果前插板未激活成功， 则前插板直接转换至去激活状态， 即 M3->M6， 因此不必激活后插 板， 如果前插板进一步返回 Ml状态且于断电一分钟后自动通电， 如操作系统重新启动， 则 后插板随前插板状态进行状态迁移， 如前插板激活成功则也相应地激活后插板等， 后插板负 载电源加载流程结束。
506： 此时由于后插板的扳手已合上， 即后插板已由 Ml状态转移到 M2状态， 但是前插 板却扳手打开， 开始去激活或正在去激活， 因此不必激活后插板， IPMC 向机框管理单元报 告后插板的状态迁移事件 M1->M2;当前插板由 M5状态或 M6状态转换至 Ml状态完成去激 活时， 后插板也相应地返回 Ml状态， 后插板负载电源加载流程结束。
507： 此时前插板或者刚刚插入， 还未合上扳手， 或者刚刚打开扳手， 正要拔出， 因此不 必激活后插板， 后插板仍维持在 Ml状态， 后插板负载电源加载流程结束。
508： IPMC 关闭后插板的负载电源， 同时向机框管理单元报告后插板的状态迁移事件 M6->M1 , 机框管理单元回收电源分配资源， 等待用户拔出后插板， 此过程不需要关闭前插 板的负载电源， 用户拔出后插板， 后插板处于 M0状态， 后插板负载电源加载流程结束。
本实施例中， 前插板和后插板的热插拔管理从逻辑上是分开进行的， IPMC 控制输出或 关闭后插板的电源有多种方式， 包括但不限于以下两种：
一种方式参见图 6， 前插板的电源转换 /控制模块 601通过 Zone3区连接器 602与后插板 电源 603相连， 给后插板提供独立的负载电源通道， 从而将前插板的负载电源和后插板的负 载电源分开管理。 IPMC 604提供两种负载电源使能信号， 分别为前插板负载电源使能信号和 后插板负载电源使能信号， 电源转换 /控制模块 601根据收到的不同的使能信号给前插板和后 插板提供负载电源。 具体地， 可以在电源转换 /控制模块 601内部设置两个开关来实现， 第一 开关用于控制后插板的负载电源， 第二开关用于控制前插板的负载电源。 当 IPMC 604控制 输出负载电源给后插板时， 向电源转换 /控制模块 601内的第一开关发送后插板负载电源使能 信号， 电源转换 /控制模块 601 内的第一开关收到后， 输出负载电源给后插板； 当 IPMC 604 控制关闭后插板的负载电源时， 向电源转换 /控制模块 601内的第一开关发送后插板负载电源 去使能信号， 电源转换 /控制模块 601内的第一开关收到后， 停止输出负载电源给后插板； 另 夕卜， IPMC 604控制前插板的负载电源时， 向电源转换 /控制模块 601 内的第二开关发送控制 信号， 控制是否输出负载电源给前插板， 从而实现前插板和后插板的负载电源供电分离。
另一种方式参见图 7，在前插板上增加后插板负载电源控制模块 701， 如可以采用开关的 形式等，该后插板负载电源控制模块 701分别与 IPMC 702和负载电路 703相连，且通过 Zone3 区连接器 704与后插板电源 705相连， 负载电路 703的负载电源被分出一部分输出给后插板 负载电源控制模块 701， 当 IPMC 702控制输出负载电源给后插板时， 向后插板负载电源控制 模块 701发送后插板负载电源使能信号， 后插板负载电源控制模块 701收到后， 将从负载电 路 703的负载电源分出来的电源输出给后插板； 当 IPMC 702控制关闭后插板的负载电源时， 向后插板负载电源控制模块 701发送后插板负载电源去使能信号， 后插板负载电源控制模块 701收到后， 停止输出从负载电路 703的负载电源分出的电源给后插板； 另外， IPMC 702可 以直接控制电源转换 /控制模块 706给前插板供电或断电。
在前插板和后插板的插拔过程中， 都需要 IPMC与机框管理单元进行通信， 本实施例中， 采用两条独立的消息实现 IPMC与机框管理单元的交互， 一条消息用于前插板的插拔， 另一 条用于后插板的插拔。 在同一个 IPMC管理下的不同 FRU (Field Replaceable Unit, 现场可替 换单元， 如前插板、 后插板等等） 与机框管理单元交互时， 在逻辑上通过 FRU Device ID进 行区分， IPMC给不同的 FRU分配不同的 ID， 如 IPMC给后插板分配的 FRU Device ID为 1， 给前插板分配的 FRU Device ID为 0， 在后插板上断电过程中， IPMC与机框管理单元进行通 信时将后插板的 FRU Device ID携带在消息中进行通信。 进一步地， 上述方法还包括： 当前 插板的 IPMC检测到后插板的扳手发出通电请求后， 通过消息与机框管理单元进行通信， 对 后插板的负载电源进行协商， 如果协商成功， 则执行前插板判断自身状态的步骤， 其中， 该 消息中包含 IPMC给后插板分配的 FRU Device ID号。 当 IPMC与机框管理单元通信对前插 板进行管理时， 在通信的消息中携带 IPMC给前插板分配的 FRU Device ID号。 本实施例中 虽然前插板和后插板都是通过同一个 IPMC物理实体与机框管理单元进行通信， 但由于通信 消息中携带的 FRU Device ID不同， 从逻辑上而言， 前插板和后插板按照各自的上断电流程 与机框管理单元进行交互， 交互时各自都采用了独立消息， 实现了前插板和后插板的管理分 离。
本实施例通过判断后插板扳手的状态并结合前插板的状态控制输出或关闭后插板的负载 电源， 对后插板的负载电源进行单独管理， 实现了后插板的热插拔， 在后插板的插入和拔出 过程中都无需中断前插板的业务， 提高了后插板的可维护性。 通过在后插板的扳手上增加微 动开关， 来判断后插板扳手的状态， 简化了后插板热插拔的硬件架构， 降低了系统成本和复 杂度。 前插板控制后插板的负载电源可以采用单独输出电源的形式， 也可以采用从负载电源 分出电源后输出的形式， 应用更灵活。
实施例 2
参见图 8， 本发明实施例提供了一种支持热插拔的系统， 包括前插板 801和与其相连的 后插板 802;
前插板 801， 用于检测后插板 802的扳手状态， 根据检测的结果控制是否输出负载电源 给后插板 802;
后插板 802， 用于从前插板 801接收电源。
具体地， 参见图 9， 后插板 802包括扳手 802a， 扳手 802a上具有微动开关 802b， 微动开 关 802b与前插板 801的 IPMC 801a相连，前插板 801检测后插板 802的扳手状态时具体通过 IPMC 801a检测微动开关 802b的信号以确定后插板 802的扳手状态，其中，该微动开关 802b 能够根据扳手 802a的不同状态输出不同的信号， 以指示扳手 802a的状态，例如，当扳手 802a 闭合时微动开关 802b输出闭合信号以请求通电给后插板 802， 当扳手 802a打开时微动开关 802b输出打开信号以请求给后插板 802断电。
进一步地，参见图 10，前插板 801包括： IPMC 801a和与其相连的后插板电源模块 801b， 后插板电源模块还与后插板 802相连；
IPMC 801a,用于检测后插板 802的扳手状态， 当检测到后插板 802的扳手发出通电请求 时， 判断前插板 801的状态， 如果为已激活状态， 则发出后插板负载电源使能信号给后插板 电源模块 801b， 当检测到后插板 802的扳手发出断电请求时， 则发出后插板负载电源去使能 信号给后插板电源模块 801b;
后插板电源模块 801b， 用于在接收到 IPMC 801a发来的后插板负载电源使能信号后， 输 出负载电源给后插板 802; 在接收到 IPMC 801a发来的后插板负载电源去使能信号后， 停止 输出负载电源给后插板 802。
本实施例通过判断后插板扳手的状态并结合前插板的状态控制输出或关闭后插板的负载 电源， 对后插板的负载电源进行单独管理， 实现了后插板的热插拔， 在后插板的插入和拔出 过程中都无需中断前插板的业务， 提高了后插板的可维护性。 通过在后插板的扳手上增加微 动开关， 来判断后插板扳手的状态， 简化了后插板热插拔的硬件架构， 降低了系统成本和复 杂度。 实施例 3
参见图 11， 本发明实施例还提供了一种前插板， 包括： 控制模块 1101和与其相连的后 插板电源模块 1102， 后插板电源模块 1102还与后插板相连；
控制模块 1101， 用于检测后插板的扳手状态， 根据检测的结果发出后插板负载电源控制 信号给后插板电源模块 1102;
后插板电源模块 1102， 用于根据接收到的控制模块 1101 发来的后插板负载电源控制信 号， 输出或者停止输出负载电源给后插板。
其中， 控制模块 1101可以为：
IPMC, 用于检测后插板的扳手状态， 当检测到后插板的扳手发出通电请求时， 判断前插 板的状态， 如果为已激活状态， 则发出后插板负载电源使能信号给后插板电源模块 1102， 当 检测到后插板的扳手发出断电请求时， 则发出后插板负载电源去使能信号给后插板电源模块 1102；
相应地，后插板电源模块 1102具体用于在接收到 IPMC发来的后插板负载电源使能信号 后， 输出负载电源给后插板； 在接收到 IPMC发来的后插板负载电源去使能信号后， 停止输 出负载电源给后插板； 进一步地， 此时后插板电源模块 1102有两种具体实现方式， 其中一种 方式， 参见图 12， 将控制模块 1101记为 IPMC 1101a， 相应地， 后插板电源模块 1102为： 包 含第一开关 1102al和第二开关 1102a2的电源转换 /控制模块 1102a;
第一开关 1102al， 用于在接收到 IPMC 1101a发来的后插板负载电源使能信号后， 输出 负载电源给后插板，在接收到 IPMC 1101a发来的后插板负载电源去使能信号后，停止输出负 载电源给后插板；
第二开关 1102a2， 用于根据 IPMC 1101a发来的前插板负载电源控制信号， 控制是否输 出负载电源给前插板的负载电路； 此时前插板的其它组成部分可以参见图 6， 此处不再赘述。
另一种方式， 参见图 13， 将控制模块 1101记为 IPMC 1101b， 相应地， 后插板电源模块 1102为： 后插板负载电源控制模块 1102b， 后插板负载电源控制模块 1102b与前插板的负载 电路相连， 用于在接收到 IPMC 1101b发来的后插板负载电源使能信号后， 将从负载电路的 负载电源分出的电源输出给后插板， 在接收到 IPMC 1101b发来的后插板负载电源去使能信 号后， 停止输出从负载电路的负载电源分出的电源给后插板； 此时前插板的其它组成部分可 以参见图 7， 此处不再赘述。
其中， 实施例 3中的前插板可以用于实施例 2的系统中。
本实施例通过判断后插板扳手的状态并结合前插板的状态控制输出或关闭后插板的负载 电源， 对后插板的负载电源进行单独管理， 实现了后插板的热插拔， 在后插板的插入和拔出 过程中都无需中断前插板的业务， 提高了后插板的可维护性。 前插板控制后插板的负载电源 可以采用单独输出电源的形式， 也可以采用从负载电源分出电源后输出的形式，应用更灵活。
本领域普通技术人员可以理解， 实现上述实施例方法携带的全部或部分步骤是可以通过 程序来指令相关的硬件完成， 所述的程序可以存储于一种计算机可读存储介质中， 该程序在 执行时， 包括方法实施例的步骤之一或其组合。
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理模块中， 也可以是各个 单元单独物理存在， 也可以两个或两个以上单元集成在一个模块中。 上述集成的模块既可以 采用硬件的形式实现， 也可以采用软件功能模块的形式实现。 所述集成的模块如果以软件功 能模块的形式实现并作为独立的产品销售或使用时， 也可以存储在一个计算机可读取存储介 质中。
上述提到的存储介质可以是只读存储器， 磁盘或光盘等。
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的精神和原则之 内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种支持热插拔的方法， 其特征在于， 所述方法包括：
前插板检测相连的后插板的扳手状态；
根据检测的结果控制是否输出负载电源给所述后插板。
2. 根据权利要求 1所述的支持热插拔的方法， 其特征在于， 所述前插板检测相连的后插 板的扳手状态， 包括：
前插板的智能平台管理控制器 IPMC检测后插板的微动开关的信号以确定所述后插板的 扳手状态， 所述后插板的扳手通过所述微动开关与所述 IPMC相连。
3. 根据权利要求 1所述的支持热插拔的方法， 其特征在于， 所述根据检测的结果控制是 否输出负载电源给所述后插板， 包括：
如果检测到所述后插板的扳手发出通电请求， 则所述前插板判断自身的状态， 如果为已 激活状态， 则激活所述后插板， 输出负载电源给所述后插板；
如果检测到所述后插板的扳手发出断电请求， 则停止输出负载电源给所述后插板。
4. 根据权利要求 3所述的支持热插拔的方法， 其特征在于， 所述输出负载电源给所述后 插板， 包括：
所述前插板的 IPMC发出后插板负载电源使能信号给所述前插板的电源转换 /控制模块， 所述电源转换 /控制模块收到后， 输出负载电源给所述后插板；
所述停止输出负载电源给所述后插板， 包括：
所述前插板的 IPMC 发出后插板负载电源去使能信号给所述前插板的电源转换 /控制模 块， 所述电源转换 /控制模块收到后， 停止输出负载电源给所述后插板。
5. 根据权利要求 3所述的支持热插拔的方法， 其特征在于， 所述输出负载电源给所述后 插板， 包括：
所述前插板的 IPMC发出后插板负载电源使能信号给后插板负载电源控制模块， 所述后 插板负载电源控制模块收到后， 将从所述前插板的负载电源分出的电源输出给所述后插板， 所述后插板负载电源控制模块位于所述前插板上， 与所述前插板的负载电路相连， 且与所述 后插板相连；
所述停止输出负载电源给所述后插板， 包括：
所述前插板的 IPMC发出后插板负载电源去使能信号给所述后插板负载电源控制模块， 所述后插板负载电源控制模块收到后， 停止输出从所述前插板的负载电源分出的电源给所述 后插板
6. 根据权利要求 3所述的支持热插拔的方法， 其特征在于， 所述方法还包括： 所述前插板的 IPMC检测到所述后插板的扳手发出通电请求后， 通过消息与机框管理单 元进行通信， 对所述后插板的负载电源进行协商， 如果协商成功， 则执行所述前插板判断自 身状态的步骤， 所述消息中包含所述 IPMC给所述后插板分配的 ID号。
7. 一种支持热插拔的系统， 其特征在于， 所述系统包括前插板和与其相连的后插板； 所述前插板， 用于检测所述后插板的扳手状态， 根据检测的结果控制是否输出负载电源 给所述后插板；
所述后插板， 用于从所述前插板接收电源。
8. 根据权利要求 7所述的支持热插拔的系统， 其特征在于， 所述后插板包括具有微动开 关的扳手， 所述微动开关与所述前插板的智能平台管理控制器 IPMC相连， 所述微动开关用 于向所述 IPMC发送指示所述后插板的扳手状态的信号。
9. 根据权利要求 7所述的支持热插拔的系统， 其特征在于， 所述前插板包括： IPMC和 与其相连的后插板电源模块， 所述后插板电源模块还与所述后插板相连；
所述 IPMC, 用于检测所述后插板的扳手状态， 当检测到所述后插板的扳手发出通电请 求时， 判断所述前插板的状态， 如果为已激活状态， 则发出后插板负载电源使能信号给所述 后插板电源模块， 当检测到所述后插板的扳手发出断电请求时， 则发出后插板负载电源去使 能信号给所述后插板电源模块；
所述后插板电源模块， 用于在接收到所述 IPMC发来的后插板负载电源使能信号后， 输 出负载电源给所述后插板； 在接收到所述 IPMC发来的后插板负载电源去使能信号后， 停止 输出负载电源给所述后插板。
10. —种单板， 其特征在于， 所述单板包括： 控制模块和与其相连的后插板电源模块， 所述后插板电源模块还与后插板相连；
所述控制模块， 用于检测所述后插板的扳手状态， 根据检测的结果发出后插板负载电源 控制信号给所述后插板电源模块；
所述后插板电源模块，用于根据接收到的所述控制模块发来的后插板负载电源控制信号， 输出或者停止输出负载电源给所述后插板。
11. 根据权利要求 10所述的单板， 其特征在于， 所述控制模块包括：
智能平台管理控制器 IPMC, 用于检测所述后插板的扳手状态， 当检测到所述后插板的 扳手发出通电请求时， 判断所述单板的状态， 如果为已激活状态， 则发出后插板负载电源使 能信号给所述后插板电源模块， 当检测到所述后插板的扳手发出断电请求时， 则发出后插板 负载电源去使能信号给所述后插板电源模块。
12. 根据权利要求 11所述的单板， 其特征在于， 所述后插板电源模块包括： 包含第一开 关和第二开关的电源转换 /控制模块；
所述第一开关， 用于在接收到所述 IPMC发来的后插板负载电源使能信号后， 输出负载 电源给所述后插板， 在接收到所述 IPMC发来的后插板负载电源去使能信号后， 停止输出负 载电源给所述后插板；
所述第二开关， 用于根据所述 IPMC发来的前插板负载电源控制信号， 控制是否输出负 载电源给所述单板。
13. 根据权利要求 11所述的单板， 其特征在于， 所述后插板电源模块为： 后插板负载电 源控制模块， 所述后插板负载电源控制模块与所述单板的负载电路相连， 用于在接收到所述 IPMC 发来的后插板负载电源使能信号后， 将从所述负载电路的负载电源分出的电源输出给 所述后插板， 在接收到所述 IPMC发来的后插板负载电源去使能信号后， 停止输出从所述负 载电路的负载电源分出的电源给所述后插板。
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