TW201527958A - Baseboard management controller capable selecting master-slave mode, electronic device and method thereof - Google Patents

Abstract

A method for selecting a master mode or a slave mode for a baseboard management controller (BMC), applied in a BMC including a processor port and a motherboard port, the method includes: detecting a voltage of the processor port; determining the mode of the BMC is the master mode if the processor port is at a high voltage; detecting the voltage of the motherboard port if the processor port is at a low voltage; searching a mode of another BMC located on another motherboard of the same electronic device if the motherboard port is at the high voltage; and determining the mode of the current BMC according to the searched mode of the another BMC.

Description

Substrate management controller, electronic device and method capable of automatically selecting master-slave mode

The present invention relates to a substrate management controller, and more particularly to a substrate management controller capable of automatically selecting a master-slave mode, and an electronic device and method having a substrate management controller.

Generally, in a computer device with a large calculation and processing amount such as a server, two or more main boards are usually included, thereby increasing the processing and computing power of the server. Correspondingly, a baseboard management controller (BMC) is installed on each motherboard for management. For the quick management of the substrate management controller, one substrate management controller is generally set as the main substrate management controller, and the other substrate management controller is set as the slave substrate management controller. The main baseboard management controller is used to manage and monitor the main board and other components of the server, such as front panel, power supply, fan, etc. The base management controller is only used to manage and monitor the main board. However, in the current server, when there are multiple substrate management controllers, after the server is started, the selection of the master management of the substrate management controller is often complicated or requires manual selection.

In view of the above, a substrate management controller, an electronic device, and a method for automatically selecting a master-slave mode are provided, and the master-slave relationship of the substrate management controller can be automatically determined after the electronic device is activated.

A substrate management controller capable of automatically selecting a master-slave mode for automatically confirming a master-slave mode after startup, the substrate management controller being located on a first motherboard of an electronic device, the substrate management controller including a process And a motherboard connection interface, the processor connection interface is connected to a processor located on the first motherboard, the motherboard connection interface is connected to an intermediate connection board, wherein the substrate management controller comprises an interface detection module A group, a mode determination module, and a mode query module. The interface detection module is configured to detect the voltage of the processor connection interface and the motherboard connection interface. The mode determining module is configured to determine a mode of the baseboard management controller as a main mode when the interface detecting module detects that the voltage of the processor connection interface is a high voltage, and detect the mode in the interface detecting module. When the voltage of the processor connection interface and the voltage of the motherboard connection interface are both low voltages, it is determined that the mode of the baseboard management controller is the slave mode. The mode query module is configured to query another electronic device on the second motherboard when the interface detecting module detects that the voltage of the processor connection interface is low voltage and the voltage of the motherboard connection interface is high voltage The mode of the baseboard management controller. The mode determining module determines the mode of the substrate management controller in which the module is located according to the mode of another substrate management controller on the second motherboard of the electronic device that is queried by the mode query module.

An electronic device includes at least two main boards and an intermediate connection board for connecting the two main boards; the two main boards each include a substrate management controller and a processor, wherein each substrate management control The device includes a processor connection interface and a motherboard connection interface, the processor connection interface is connected to a processor on the same motherboard, the motherboard connection interface is connected to the intermediate connection board, wherein each substrate management controller further comprises a An interface detection module, a mode determination module, and a mode query module. The interface detection module is configured to detect the voltage of the processor connection interface and the motherboard connection interface. The mode determining module is configured to determine a mode of the baseboard management controller as a main mode when the interface detecting module detects that the voltage of the processor connection interface is a high voltage, and detect the mode in the interface detecting module. When the voltage of the processor connection interface and the voltage of the motherboard connection interface are both low voltages, it is determined that the mode of the baseboard management controller is the slave mode. The mode query module is configured to query another electronic device on the second motherboard when the interface detecting module detects that the voltage of the processor connection interface is low voltage and the voltage of the motherboard connection interface is high voltage The mode of the baseboard management controller. The mode determining module determines the mode of the substrate management controller in which the module is located according to the mode of another substrate management controller on the second motherboard of the electronic device that is queried by the mode query module.

A substrate management controller master-slave mode selection method is applied to a substrate management controller, the substrate management controller is located on a motherboard of an electronic device, and the substrate management controller includes a processor connection interface and a motherboard connection interface. The processor connection interface is connected to a processor on the same motherboard, and the motherboard connection interface is connected to an intermediate connection board, wherein the method comprises the steps of: detecting whether the voltage of the processor connection interface is high voltage or low voltage; When the voltage of the connection interface of the device is high voltage, the mode of the substrate management controller is determined to be the main mode; when the voltage of the connection interface of the processor is low voltage, the voltage of the connection interface of the motherboard is continuously detected as a high voltage or a low voltage; When the voltage of the motherboard connection interface is low voltage, it is determined that the mode of the substrate management controller is a slave mode; when the voltage of the motherboard connection interface is a high voltage, querying another substrate management control on the electronic device on the other motherboard Mode of the device; and determining the current mode based on the mode of another substrate management controller that is queried Board management controller.

According to the substrate management controller, the electronic device and the method of the present invention, which can automatically select the master-slave mode, the master-slave relationship of the substrate management controller can be automatically determined after the electronic device is activated.

FIG. 1 is a schematic structural diagram of an electronic device including a substrate management control capable of automatically selecting a master-slave mode according to an embodiment of the present invention.

2 is a schematic diagram of a module of a master-slave selection system according to an embodiment of the present invention.

3 is a schematic diagram of a truth table in an embodiment of the present invention.

4 is a flow chart showing a method of selecting a master-slave mode of a substrate management controller according to an embodiment of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of a module of an electronic device 100 having a substrate management controller capable of automatically selecting a mode according to an embodiment of the present invention. The electronic device 100 includes at least two main boards 10, 20 and an intermediate connecting board 30. The intermediate connecting plate 30 is used to connect the two main boards 10, 20.

The main board 10 includes a baseboard management controller (BMC) 11 and a processor 12. The motherboard 20 includes a substrate management controller 21 and a processor 22. The intermediate connection plate 30 includes a main mode interface 31 and a slave mode interface 32.

The baseboard management interface 11 includes a processor connection interface 111 and a motherboard connection interface 112. The processor connection interface 111 is connected to the processor 12 on the same motherboard 10. The motherboard connection interface 112 and the intermediate connection board 30 are connected. The main mode interface 31 and one of the slave mode interfaces 32 are connected to the main mode interface 31 of the intermediate connection board 30 as shown in FIG. The baseboard management controller 21 also includes a processor connection interface 211 and a motherboard connection interface 213. The processor connection interface 211 is connected to a processor 22 on the same motherboard 20, and the slave board connects the interface 213 and the slave interface 30. Interface 32 is connected.

After the electronic device 100 is activated, the main mode interface 31 of the intermediate connection board 30 is fixedly outputting a high voltage, and the low voltage is fixedly output from the mode interface 32. The substrate management controller 11 connected to the main mode interface 31 is at the main position, and the substrate management controller 21 connected to the slave mode interface 32 is at the slave position.

Referring to FIG. 2 together, the substrate management controller 11 and the substrate management controller 12 each operate a master-slave selection system S1. In the present embodiment, the master-slave selection system S1 is a program that is solidified in the substrate management controllers 11, 12.

The master-slave selection system S1 includes an interface detection module 101, a mode determination module 102, and a mode query module 103.

Wherein, when the electronic device 100 is powered on, the master management system 11 in the baseboard management controller 11 and the baseboard management controller 12 starts to operate to perform a corresponding master-slave selection function. Since the steps and functions performed by the master-slave selection system S1 in the substrate management controller 11 and the substrate management controller 12 are completely the same, the master-slave selection system S1 operated by the substrate management controller 11 will be described below as an example.

The interface detection module 101 is configured to detect the voltage of the processor connection interface 111 and the motherboard connection interface 112. When the interface detecting module 101 detects that the voltage of the processor connection interface 111 is a high voltage, the mode determining module 102 determines that the mode of the baseboard management controller 11 is a master mode.

In the embodiment, before the substrate management controllers 11 and 12 are not started for the first time, the substrate management controllers 11 and 12 are not divided into the master-slave mode, the processor 12 on the motherboard 10, and the processor on the motherboard 20. 22 outputs a low voltage, that is, the processor connection interface 111 and the processor connection interface 211 are both low voltages. After the substrate management controllers 11 and 12 are started at least once and the master and slave are divided, the processor 12 on the motherboard 10 and the processor 22 on the motherboard 20 are all based on the corresponding substrate management controller when the electronic device 100 is turned off last time. The mode of 11 or 21 outputs the corresponding voltage signal. Wherein, the processor 12 or 22 outputs a high voltage signal according to the substrate management controller 11 or 12 when the last shutdown is in the main mode, and when the substrate management controller 11 or 12 at the last shutdown is in the slave mode, Output a low voltage signal. Therefore, when the interface detecting module 101 detects that the interface detecting module 101 detects that the voltage of the processor connection interface 111 is a high voltage, the mode determining module 102 determines that the substrate management controller 11 is the main substrate. The controller is managed regardless of whether the voltage of the motherboard connection interface 112 is high voltage or low voltage. Thereby, after the substrate management controller 11 or 12 is restarted, the previous mode is followed. Obviously, the user can manually change the master-slave mode of the substrate management controller 11 or 12 after the substrate management controller 11 or 12 is started, so that the next time the substrate management controller 11 or 12 is restarted, the changed mode is entered.

When the interface detecting module 101 detects that the voltage of the processor connection interface 111 is low voltage and the voltage of the motherboard connection interface 112 is also low voltage, the mode determining module 102 determines the substrate management controller 11 where the substrate management controller 11 is located. For the slave mode.

Specifically, as described above, the main mode interface 31 of the intermediate connection board 30 is a fixed output high voltage as a main mode interface, and the slave mode interface 32 is a fixed output low voltage from the mode interface. When the interface detecting module 101 detects that the voltage of the motherboard connection interface 112 is a low voltage, the mode determining module 102 determines that the substrate management controller 11 is connected to the slave mode interface 32 of the intermediate connection board 30. From the position, if the substrate management controller 11 is started for the first time, the substrate management controller 11 automatically enters the slave mode because it is in the slave position. If the substrate management controller 11 detects that the voltage of the processor connection interface 111 is a low voltage, the mode of the substrate management controller 11 is the slave mode. This time, the substrate management controller 11 is still in the slave mode. Therefore, when the interface detecting module 101 detects that the voltage of the processor connection interface 111 is a low voltage and the voltage of the motherboard connection interface 112 is also a low voltage, regardless of whether the substrate management controller 11 is For the first start, both are slave modes.

The mode query module 103 is configured to query another baseboard management controller when the interface detecting module 101 detects that the voltage of the processor connection interface 111 is a low voltage and detects that the voltage of the motherboard connection interface 112 is a high voltage. 12 current mode. When the mode query module 103 queries the mode of the other substrate management controller 12 as the master mode, the mode determining module 102 determines that the substrate management controller 11 is in the slave mode, and queries the mode query module 103 to query another mode. When the mode of the substrate management controller 12 is the slave mode, it is determined that the substrate management controller 11 is in the master mode.

Specifically, the interface detection module 101 detects that the voltage of the motherboard connection interface 112 is a high voltage, so that the substrate management controller 11 is at the primary position, and the substrate management controller 12 is necessarily in the slave position. As described above, when the interface management module 12 detects that the voltage of the processor connection interface 211 is a high voltage, the substrate management controller 12 is in a master mode, and the substrate management controller 12 performs the processing according to the processing. When the voltage of the device connection interface 211 is a low voltage, since the substrate management controller 12 is already in the slave position, the substrate management controller 12 is necessarily in the slave mode. Therefore, the substrate management controller 12 is inevitable when the mode query module 103 queries. The master has been separated.

In the present embodiment, the substrate management controller 11 is also connected to the other substrate management controller 12 via a substrate transmission line 40. The mode query module 104 sends a query request to the other substrate management controller 12 through the substrate transmission line 40 to query the mode of the substrate management controller 12.

The substrate management controllers 11, 12 perform corresponding control according to the respective determined modes. That is, when the substrate management controllers 11 and 12 determine the mode in which the mode is in the master mode, the main board and the entire electronic device are managed. When the substrate management controllers 11 and 12 determine that the mode is in the slave mode, only the management mode is Motherboard.

Therefore, the substrate management controllers 11, 12 of the present invention can automatically determine the master-slave mode in which the electronic device 100 is activated, and perform control in the corresponding mode.

The electronic device 100 is a tablet computer, a desktop computer, a notebook computer, a server, or the like. The number of the main boards and the number of the substrate management controllers included in the electronic device 100 are not limited to two, and may be three, four, or the like.

Please refer to FIG. 3 , which is a truth table of the voltage relationship between the substrate management controllers 11 and 12 and the processor connection interface 111 and the motherboard connection interface 112 of the present invention. However, when the substrate management controllers 11 and 12 are “1”, the master mode is used, and when the substrate management controllers 11 and 12 are “0”, the slave mode is the slave mode. As shown in FIG. 2, when the voltage of the processor connection interface 111 is "1", at this time, regardless of whether the voltage of the motherboard connection interface 112 is "1" or "0", the substrate management controller 11 is in the main mode. The substrate management controller 12 is in a slave mode. When the voltage of the processor connection interface 111 is a low voltage “0”, if the voltage of the motherboard connection interface 112 is also a low voltage “0”, the substrate management controller 11 is in a slave mode, and the substrate management controller 12 is mainly mode. When the voltage of the processor connection interface 111 is a low voltage “0” and the voltage of the motherboard connection interface 112 is a high voltage “0”, the substrate management controller 11 determines itself according to the mode in which the substrate management controller 12 is located. Mode. That is, when the substrate management controller 12 is in the master mode, the substrate management controller 11 is in the slave mode, and when the substrate management controller 12 is in the slave mode, the substrate management controller 11 is in the master mode.

Please refer to FIG. 4 , which is a flowchart of a method for selecting a master-slave mode of a substrate management controller according to the present invention. First, the interface detecting module 101 detects whether the voltage of the processor connection interface 111 is a high voltage or a low voltage (S401). If it is a high voltage, step S403 is performed, and if it is a low voltage, step S405 is performed.

The mode determination module 102 determines that the mode of the baseboard management controller 11 is the master mode (S403).

The interface detecting module 101 continues to detect whether the voltage of the motherboard connection interface 112 is high voltage or low voltage (S405). If it is a low voltage, step S407 is performed, otherwise step S409 is performed.

The mode determination module 102 determines that the mode of the baseboard management controller 11 is the slave mode (S407).

The mode inquiry module 103 queries the mode of the other substrate management controller 12 (S409).

The mode determining module 102 determines the mode of the current substrate management controller 11 based on the mode of the other substrate management controller 12 that is queried (S411). Specifically, when the mode of the other substrate management controller 12 that is queried is the master mode, the mode determining module 102 determines that the mode of the substrate management controller 11 is a slave mode, and the mode determining module 102 is in the mode. When the mode of the other substrate management controller 12 that is queried is the slave mode, the mode of the substrate management controller 11 in which it is located is determined to be the master mode.

It is to be understood that the above-described embodiments are merely illustrative of the invention and are not intended to limit the invention. Variations made by the person skilled in the art in the corresponding technical field in accordance with the invention are within the scope of protection of the invention.

100‧‧‧Electronic devices

10, 20‧‧‧ motherboard

30‧‧‧Intermediate connection plate

40‧‧‧Substrate transmission line

11, 12‧‧‧ substrate management controller

21, 22‧‧‧ processor

111, 211‧‧‧ processor connection interface

112, 212‧‧‧ motherboard connection interface

31‧‧‧Main mode interface

32‧‧‧From mode interface

S1‧‧‧Master-slave selection system

101‧‧‧Interface Detection Module

102‧‧‧Mode Determination Module

103‧‧‧ mode query module

S401~S411‧‧‧Steps

no

S401‧‧‧Detects whether the voltage of the processor connection interface is high voltage or low voltage

S403‧‧‧ Determine the mode of the baseboard management controller as the main mode

S405‧‧‧Detects whether the voltage of the motherboard connection interface is high voltage or low voltage

S407‧‧‧Determine that the mode of the baseboard management controller is slave mode

S409‧‧‧Query the mode of another substrate management controller on the other motherboard on the electronic device

S411‧‧‧ Determine the mode of the current baseboard management controller according to the mode of another substrate management controller that is queried

Claims (9)

A substrate management controller capable of automatically selecting a master-slave mode for automatically confirming a master-slave mode after startup, the substrate management controller being located on a first motherboard of an electronic device, the substrate management controller including a process And a motherboard connection interface, the processor connection interface is configured to be connected to a processor located on the first motherboard, the motherboard connection interface is configured to be connected to an intermediate connection board, wherein the substrate management controller comprises:
An interface detection module for detecting a voltage of a processor connection interface and a motherboard connection interface;
a mode determining module, configured to determine a mode of the baseboard management controller as a main mode when the interface detecting module detects that the voltage of the processor connection interface is a high voltage, and detect the mode in the interface detecting module When the voltage of the processor connection interface and the voltage of the motherboard connection interface are both low voltages, determine that the mode of the baseboard management controller is a slave mode;
a mode query module, configured to query the second motherboard of the electronic device when the interface detecting module detects that the voltage of the processor connection interface is low voltage and the voltage of the motherboard connection interface is high voltage a mode of a substrate management controller;
The mode determining module determines the mode of the substrate management controller in which the module is located according to the mode of another substrate management controller on the second motherboard of the electronic device that is queried by the mode query module. The substrate management controller of claim 1, wherein the substrate management controller and another substrate management controller located on the second motherboard are connected by a substrate transmission line, and the mode query module passes the substrate transmission line. A query request is sent to another baseboard management controller to query the mode of the other baseboard management controller. The substrate management controller of claim 1, wherein the mode determining module is configured to query a mode of another substrate management controller on the second main board of the electronic device in the main mode. Determining the mode of the substrate management controller in the slave mode, and determining the substrate management control when the mode query module queries the mode of another substrate management controller on the second motherboard of the electronic device as the slave mode The mode of the device is the main mode. An electronic device includes at least two main boards and an intermediate connection board for connecting the two main boards; the two main boards each include a substrate management controller and a processor, wherein each substrate management control The device includes a processor connection interface and a motherboard connection interface. The processor connection interface is connected to a processor on the same motherboard. The motherboard connection interface is connected to the intermediate connection board. Each of the substrate management controllers further includes:
An interface detection module is configured to detect a processor connection interface of the substrate management controller and a voltage of the motherboard connection interface;
A mode determining module is configured to determine a mode of the baseboard management controller as a main mode when the interface detecting module detects that the voltage of the processor connection interface is a high voltage, and detect the mode in the interface detection module When the voltage of the processor connection interface and the voltage of the connection interface of the motherboard are both low voltages, determine that the mode of the substrate management controller is a slave mode;
a mode query module, configured to query the electronic device when the voltage of the processor connection interface of the substrate management controller of the interface detection module is low voltage and the voltage of the motherboard connection interface is high voltage Another substrate management controller mode on the other motherboard;
The mode determining module determines the mode of the baseboard management controller in which the module is based on the mode of another baseboard management controller of the electronic device that is queried by the mode query module. The electronic device of claim 4, wherein the substrate management controllers on the two main boards are connected by a substrate transmission line, and the mode query module sends a query request to another substrate management control through the substrate transmission line. The mode of the other substrate management controller is queried. The electronic device of claim 4, wherein the mode determining module determines when the mode query module queries a mode of another baseboard management controller on another motherboard of the electronic device as a master mode. The mode of the baseboard management controller is the slave mode, and when the mode query module queries the mode of another baseboard management controller of the electronic device to be the slave mode, the mode of the baseboard management controller is determined to be the master mode. A substrate management controller master-slave mode selection method is applied to a substrate management controller, the substrate management controller is located on a motherboard of an electronic device, and the substrate management controller includes a processor connection interface and a motherboard connection interface. The processor connection interface is connected to a processor on the same motherboard, and the motherboard connection interface is connected to an intermediate connection board, wherein the method comprises the steps of:
Detecting whether the voltage of the processor connection interface is high voltage or low voltage;
When the voltage of the processor connection interface is a high voltage, determining a mode of the baseboard management controller as a main mode;
When the voltage of the processor connection interface is low voltage, continue to detect whether the voltage of the motherboard connection interface is high voltage or low voltage;
When the voltage of the motherboard connection interface is a low voltage, determining that the mode of the baseboard management controller is a slave mode;
When the voltage of the motherboard connection interface is a high voltage, querying a mode of another substrate management controller on the electronic device on the other motherboard; and determining the current substrate according to the mode of the other substrate management controller that is queried Manage the mode of the controller. The method of claim 7, wherein the step of "query a mode of another substrate management controller on the other electronic device on the electronic device" includes:
The mode of the other substrate management controller is queried by transmitting a query request to another substrate management controller through a substrate transmission line. The method of claim 7, wherein the step of determining the mode of the current substrate management controller according to the mode of the other substrate management controller that is queried includes:
When querying a mode of another substrate management controller on another motherboard of the electronic device as a master mode, determining that a mode of the substrate management controller is a slave mode; and querying another substrate management controller of the electronic device When the mode is slave mode, the mode of the baseboard management controller is determined to be the master mode.