WO2023030275A1

WO2023030275A1 - Monitoring device address management method and apparatus, baseboard management controller, and device

Info

Publication number: WO2023030275A1
Application number: PCT/CN2022/115631
Authority: WO
Inventors: 李延昌; 朱鹏; 赵松; 焦国方; 何俊杰
Original assignee: 上海壁仞智能科技有限公司
Priority date: 2021-09-03
Filing date: 2022-08-29
Publication date: 2023-03-09
Also published as: CN113468027A; CN113468027B

Abstract

A monitoring device address management method and apparatus, a baseboard management controller, and an electronic device. The monitoring device address management method is used for a board comprising at least one monitoring device. The monitoring device manages on the basis of a system management bus. The method comprises: obtaining an enumeration time of the board; and generating an identification code of the monitoring device on the basis of the enumeration time for address geocoding of the monitoring device. According to the method, the identification code of the monitoring device can be dynamically generated, hardware does not need to be modified, a microprocessor on the board does not need to have a random number generation function, the code overlapping probability can be effectively reduced, and the product cost is reduced.

Description

Monitoring device address management method and device, substrate management controller, and equipment

technical field

Embodiments of the present disclosure relate to a monitoring device address management method and device, a baseboard management controller, and electronic equipment.

Background technique

Computers or servers usually support the expansion of peripherals through the slots on the motherboard, such as network cards, audio cards, sampling cards, password cards, etc. These expansion peripherals are usually designed in the form of boards. The boards can be inserted into the slots provided by the computer or server. By establishing a communication connection between the board and the control components of the computer or server, the computer or server can use the board to provide hardware resources to achieve hardware expansion.

Contents of the invention

At least one embodiment of the present disclosure provides a monitoring device address management method, which is used for a board including at least one monitoring device, and the monitoring device is managed based on a system management bus. The method includes: obtaining an enumeration of the board time: based on the enumeration time, generate an identification code of the monitoring device to be used for address coding of the monitoring device.

For example, in the method provided in an embodiment of the present disclosure, generating the identification code of the monitoring device based on the enumeration time includes: acquiring monitoring data of each monitoring device in the at least one monitoring device; The monitoring device generates an identification code of the monitoring device according to the monitoring data and the enumeration time of the board.

For example, in the method provided in an embodiment of the present disclosure, for each monitoring device, generating the identification code of the monitoring device according to the monitoring data and the enumeration time of the board includes: converting the monitoring data to and the enumeration time as input, use a hash algorithm to calculate and obtain a calculation result, and use the calculation result as the identification code of the monitoring device.

For example, in the method provided by an embodiment of the present disclosure, the monitoring data includes at least one of a voltage parameter and a temperature parameter.

For example, in the method provided in an embodiment of the present disclosure, the board includes a plurality of monitoring devices, and for each monitoring device in the plurality of monitoring devices, the parameters of the monitoring data used for the calculation are of the same type .

For example, in the method provided in an embodiment of the present disclosure, each monitoring device in the plurality of monitoring devices corresponds to a different identification code.

For example, in the method provided in an embodiment of the present disclosure, the board includes a monitoring device, and generating the identification code of the monitoring device based on the enumeration time includes: taking the enumeration time of the board as Input, use the hash algorithm to calculate and obtain the calculation result, and use the calculation result as the identification code of the monitoring device.

For example, the method provided by an embodiment of the present disclosure further includes: sending the identification code of the monitoring device to a baseboard management controller that manages the board through the system management bus, so that the baseboard management controller Address encoding is performed on the identification code to generate the address of the monitoring device.

For example, in the method provided in an embodiment of the present disclosure, the board includes a peripheral component interconnection board or a peripheral component interconnection high-speed board.

For example, in the method provided in an embodiment of the present disclosure, the board is connected to the host, and the enumeration time is that the board is passed by the host based on the peripheral component interconnection bus or the peripheral component interconnection high-speed bus. Enumeration time.

For example, in the method provided in an embodiment of the present disclosure, the monitoring device includes a sensor configured to sense a parameter reflecting an operating state of the board.

At least one embodiment of the present disclosure provides a monitoring device address management method for a baseboard management controller, wherein the baseboard management controller is configured to manage at least one monitoring device located on at least one board based on a system management bus , the method includes: receiving the identification code of the monitoring device, wherein the identification code is generated based on the enumeration time of the board to which the monitoring device belongs; and based on the identification code, performing address encoding to generate the Monitor the address of the device.

For example, in the method provided in an embodiment of the present disclosure, receiving the identification code of the monitoring device includes: receiving the identification code of the monitoring device through the system management bus.

For example, in the method provided in an embodiment of the present disclosure, the at least one board is a plurality of boards, and each board in the plurality of boards corresponds to a different enumeration time.

At least one embodiment of the present disclosure provides a monitoring device address management device, which is used for a board including at least one monitoring device, and the monitoring device is managed based on a system management bus. The device includes: an enumeration time acquisition unit configured to Obtaining the enumeration time of the board; an identification code generation unit configured to generate an identification code of the monitoring device based on the enumeration time, to be used for address coding of the monitoring device.

At least one embodiment of the present disclosure provides a baseboard management controller configured to manage at least one monitoring device located on at least one board based on a system management bus, wherein the baseboard management controller includes: an identification code acquisition unit, It is configured to receive the identification code of the monitoring device, wherein the identification code is generated based on the enumeration time of the board to which the monitoring device belongs; and the address generating unit is configured to perform address encoding based on the identification code and generate The address of the monitoring device.

At least one embodiment of the present disclosure provides an electronic device, including the monitoring device address management device or the baseboard management controller provided by any embodiment of the present disclosure.

At least one embodiment of the present disclosure provides an electronic device, including a baseboard management controller and at least one board, wherein the baseboard management controller is communicatively connected to the at least one board, and each board includes a microprocessor and At least one monitoring device; the microprocessor is configured to obtain the enumeration time of the board, and generate an identification code of the monitoring device based on the enumeration time; the monitoring device is configured to reflect the board The baseboard management controller is configured to receive the identification code of the monitoring device, perform address encoding based on the identification code, and generate the address of the monitoring device.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present disclosure more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure .

Fig. 1 is a schematic block diagram of an electronic device;

FIG. 2 is a schematic flowchart of a monitoring device address management method provided by some embodiments of the present disclosure;

FIG. 3 is an exemplary flowchart of step S120 in FIG. 2;

FIG. 4 is a schematic flowchart of another monitoring device address management method provided by some embodiments of the present disclosure;

FIG. 5A is one of the application flowcharts of the monitoring device address management method provided by some embodiments of the present disclosure;

FIG. 5B is the second application flowchart of the monitoring device address management method provided by some embodiments of the present disclosure;

FIG. 6 is a schematic flowchart of a monitoring device address management method provided by some embodiments of the present disclosure;

Fig. 7 is a schematic block diagram of a monitoring device address management device provided by some embodiments of the present disclosure;

Fig. 8 is a schematic block diagram of a baseboard management controller provided by some embodiments of the present disclosure;

Fig. 9 is a schematic block diagram of an electronic device provided by some embodiments of the present disclosure; and

Fig. 10 is a schematic block diagram of another electronic device provided by some embodiments of the present disclosure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.

Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a", "an" or "the" do not denote a limitation of quantity, but mean that there is at least one. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

As an additional hardware device for computer peripherals, boards are widely used in the computer field. The board uses the bus protocol to communicate with the computer, so as to receive control signals and control commands from the computer, and send feedback information to the computer. The more commonly used bus protocols for boards include Peripheral Component Interconnect (PCI) bus and Peripheral Component Interconnect Express (PCI-e) bus, and the corresponding boards are called PCI board, PCI-e board. One or more monitoring devices can be set on the PCI board or the PCI-e board, and these monitoring devices can monitor the running status of the boards, so as to facilitate computer management of these boards.

Fig. 1 is a schematic block diagram of an electronic device. As shown in FIG. 1 , in the electronic device, a host 01 is connected to multiple PCI-e boards. For example, the host 01 may be a common computer or server, which provides multiple slots for easy connection with PCI-e boards, so as to realize hardware expansion. In this example, a plurality of boards PCI-e-1, PCI-e-2, ..., PCI-e-n communicate with the host 01 through a PCI-e bridge (PCI-e Bridge). The PCI-e bridge can usually be integrated in the south bridge chip or the north bridge chip of the host 01. Board cards PCI-e-1, PCI-e-2,..., PCI-e-n perform data transmission between the host 01 and the PCI-e bus. It should be noted that although this example uses a PCI-e board as an example, those skilled in the art can understand that a PCI board can also be used, which is not limited in the embodiments of the present disclosure.

For example, one or more monitoring devices can be set on the board cards PCI-e-1, PCI-e-2, ..., PCI-e-n, and these monitoring devices can monitor the board cards PCI-e-1, PCI-e-2, ..., PCI-e-n running status monitoring, in order to manage board PCI-e-1, PCI-e-2, ..., PCI-e-n. For example, the monitoring device can be called a PVT (Process, Voltage and Temperature) device, which can sense parameters such as voltage and temperature of the board. In the example shown in Figure 1, a monitoring device is set on each board, for example, the monitoring device PVT-1 is set on the board PCI-e-1, and the monitoring device PVT is set on the board PCI-e-2 -2, and so on, the board card PCI-e-n is provided with a monitoring device PVT-n. Of course, the embodiments of the present disclosure are not limited thereto, and multiple monitoring devices may also be set on each board, which may be determined according to actual needs.

For example, the monitoring devices PVT-1, PVT-2, ..., PVT-n communicate with the host 01 through the system management bus (System Management Bus, SMbus), for example, in the baseboard management controller (Baseboard Management Controller, BMC) of the host 01 Deployed SMbus controller communication. For example, the monitoring devices PVT-1, PVT-2, . SMBus is a bus protocol widely used by BMC. Usually there are multiple PCI boards or PCI-e boards in the computer system, which also includes one or more monitoring devices based on SMbus management to monitor the computer power supply, accessories, etc. Status is monitored.

For example, when the host 01 is connected to multiple boards and at least some of the boards are of the same type, in order to identify and distinguish the monitoring devices on each board, it is necessary to encode the addresses of each monitoring device, that is, assign each monitoring device address.

For example, in some examples, hardware addressing may be used to determine the address. For example, configure different pull-up and pull-down resistors for different PCI-e slots on the backplane of the main chassis. After the board is inserted into the PCI-e slot, the electrical connection is made due to the hardware contact, so that the address of the monitoring device can be determined. However, this method requires additional consideration in hardware design, which increases the hardware cost, and because it relies on the electrical connection between the board and the slot, the number of devices that can be supported by this method is limited by factors such as physical size and board manufacturing process. limits.

For example, in some other examples, the address may be determined by means of software dynamic allocation. For example, the address encoding can be implemented according to the Address Resolution Protocol (Address Resolution Protocol, ARP) in the SMbus protocol. At this time, each monitoring device needs to provide a unique identification code (UDID) by itself, and after the identification code of each monitoring device is determined, an address is generated according to the identification code. However, the ARP protocol requires each monitoring device to provide a unique identification code, and in a symmetric multi-device system, even if a pseudo-random number is used as a seed, there is a certain probability that "code collision" will occur (that is, different monitoring devices with the same identification code). Moreover, this method requires the microprocessor (Microprocessor Unit) on the board to have a random number generation function, which requires relatively high hardware requirements for the board.

The above-mentioned addressing methods, whether it is hardware addressing or random number-based software dynamic allocation, have limitations, which will have adverse effects on the performance, structure, and cost of devices including boards, and cannot meet the growing demands. need.

At least one embodiment of the present disclosure provides a monitoring device address management method and device, a baseboard management controller, and electronic equipment. The method can dynamically generate the identification code of the monitoring device without modifying the hardware and without the random number generation function of the microprocessor on the board, which can effectively reduce the probability of code collision and reduce the product cost.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the same reference numerals will be used in different drawings to refer to the same elements already described.

At least one embodiment of the present disclosure provides a monitoring device address management method. The monitoring device address management method is used for a board including at least one monitoring device, and the monitoring device is managed based on a system management bus. The method includes: obtaining the enumeration time of the board; and generating the identification code of the monitoring device based on the enumeration time, which is used for the address code of the monitoring device.

Fig. 2 is a schematic flowchart of a monitoring device address management method provided by some embodiments of the present disclosure. As shown in Fig. 2, in some embodiments, the method includes the following operations.

Step S110: Obtain the enumeration time of the board;

Step S120: Based on the enumeration time, an identification code of the monitoring device is generated for address coding of the monitoring device.

For example, the method can be applied to a board including at least one monitoring device, and the monitoring device is managed based on a system management bus. For example, the method can be applied to various PCI-e boards as shown in FIG. 1 and electronic equipment including these PCI-e boards.

For example, in step S110, the microprocessor on the board can acquire the enumeration time of the board. For example, when the board is connected to the host 01, that is, when the board is inserted into the slot provided by the host 01, if the board is a PCI board or a PCI-e board, the board will be based on PCI bus or PCI-e bus is enumerated by host01. Here, the enumeration time refers to the time when the board is enumerated by the host 01 based on the PCI bus or PCI-e bus, that is, the corresponding moment in the system time run by the time module in the host 01 when performing enumeration. For example, MSI_CAPABILITY_REGISTER and MSI_CONTROL_REGISTER can be used to achieve enumeration. After the enumeration is completed, the enumeration time can be determined by querying the changes in registers such as PCI-e MSI_CAPABILITY_REGISTER. For specific instructions on the enumeration of PCI boards or PCI-e boards, reference may be made to conventional designs, which will not be described in detail here.

For example, in step S120, an identification code of the monitoring device may be generated according to the enumeration time, and the identification code may be used for address coding of the subsequent monitoring device. Since each board is enumerated sequentially on the PCI bus or PCI-e bus, not at the same time, each board corresponds to a unique enumeration time, which is related to the specific enumeration time of the board. The corresponding relationship, so that the identification code of the monitoring device can be generated by using the enumeration time, so that the correspondingly generated identification code has a specific corresponding relationship with the monitoring device on the board, so that the identification code of the monitoring device is unique.

For example, in some examples, as shown in FIG. 3 , the above step S120 may further include the following operations.

Step S121: Obtain monitoring data of each monitoring device in at least one monitoring device;

Step S122: For each monitoring device, an identification code of the monitoring device is generated according to the monitoring data and the enumeration time of the board.

For example, in step S121, the monitoring device may be a PVT device provided on the board, and the monitoring device may collect at least one of voltage parameters and temperature parameters of the board to which it belongs. The monitoring data of the monitoring device refers to the data collected by the monitoring device, which can also be called PVT data. Correspondingly, the monitoring data includes at least one of voltage parameters and temperature parameters. Therefore, the monitoring data can be voltage values, temperature values, etc. . For example, in some examples, the monitoring device is a sensor configured to sense parameters reflecting the operating state of the board, and the parameters reflecting the operating state of the board include at least one of a voltage parameter and a temperature parameter. For example, the monitoring data of the monitoring device can be obtained by the microprocessor on the board.

For example, when one monitoring device is set on the board, the monitoring data of the monitoring device needs to be obtained; when multiple monitoring devices are set on the board, the monitoring data of each monitoring device needs to be obtained. When multiple monitoring devices are set on the board, each monitoring device can be a different type of monitoring device for obtaining different types of monitoring data, or each monitoring device can be the same type of monitoring device for targeting Different parts of the board or different signal paths are monitored.

For example, in step S122, for each monitoring device, an identification code of the monitoring device may be generated according to the monitoring data of the monitoring device and the enumeration time of the board to which the monitoring device belongs. For example, the identification code may be a binary number with preset digits, for example, 64 digits, 32 digits, 16 digits, 8 digits, or other arbitrary digits, which is not limited in the embodiments of the present disclosure. For example, the identification code may be represented by any type of data such as integer type, character type, floating point type, etc., which is not limited in the embodiments of the present disclosure.

For example, in one example, step S122 may include: taking monitoring data and enumeration time as input, performing calculation by hash algorithm to obtain a calculation result, and using the calculation result as the identification code of the monitoring device. The hash algorithm can also be called a hash algorithm, which can transform an input of any length into a fixed-length output through hash calculation. Since the monitoring data measured by each monitoring device itself is different, and the enumeration time of different boards is also different, therefore, the data set composed of monitoring data and enumeration time is unique for each monitoring device. Using the monitoring data and enumeration time as seeds, that is, as the input of the hash operation, a globally unique identification code can be obtained. As a result, different monitoring devices correspond to different identification codes, which facilitates subsequent address coding. When there are multiple monitoring devices, each of the multiple monitoring devices corresponds to a different identification code. For example, the hash operation may be performed by a microprocessor provided on the board to generate the identification code. Of course, the embodiments of the present disclosure are not limited thereto, and the hash operation may also be performed by other applicable firmware or hardware on the board.

For example, monitoring data can be expressed as D0, D1,...,Dn, where D0, D1,...,Dn can represent multiple values obtained by multiple sampling for the same type of parameters, or can refer to different types of parameters The numerical values obtained by sampling separately may be determined according to actual requirements, which is not limited in the embodiments of the present disclosure.

Assuming that the enumeration time is denoted as T and the identification code is denoted as UDID, then the hash operation can be denoted as UDID=Hash({T, D0, D1, . . . , Dn}). It should be noted that when performing hash operations, any one or more values in D0, D1, ..., Dn can be used, not limited to using all values of D0, D1, ..., Dn, for example, UDID=Hash( {T,D0}), UDID=Hash({T,D0,D1}), UDID=Hash({T,D1}), UDID=Hash({T,D2,...,Dn}), etc., which can be based on It depends on actual requirements, which is not limited in the embodiments of the present disclosure.

For example, when there are multiple monitoring devices, for each of the multiple monitoring devices, the parameter types of the monitoring data used for calculation are the same. That is, assuming that multiple monitoring devices include a first monitoring device and a second monitoring device, if the voltage value measured by the first monitoring device is used when calculating the identification code of the first monitoring device, then the identification code of the second monitoring device is calculated The voltage value measured by the second monitoring device also needs to be used; if the temperature value measured by the first monitoring device is used when calculating the identification code of the first monitoring device, the second monitoring device also needs to be used when calculating the identification code of the second monitoring device. The temperature value measured by the device. Therefore, the calculation results for different monitoring devices can have the same or similar precision and accuracy.

It should be noted that in the embodiments of the present disclosure, the monitoring data is not limited to voltage parameters and temperature parameters, and can also be other types of parameters, such as power parameters, frequency parameters, current parameters, etc., and the usual PVT data can be used as monitoring data , which is not limited by the embodiments of the present disclosure. The algorithm used to calculate the identification code is not limited to the hash algorithm, and other types of algorithms can also be used, as long as the corresponding code can be generated based on the monitoring data and enumeration time as the identification code, which can be determined according to actual needs. Embodiments of the present disclosure do not limit this.

For example, in some examples, if only one monitoring device is set on the board, only the enumeration time of the board can be used to perform the hash operation without using the monitoring data of the monitoring device. For example, the above step S120 may include: taking the enumeration time of the board as input, performing calculations using a hash algorithm to obtain a calculation result, and using the calculation result as an identification code of the monitoring device. Since there is only one monitoring device on the board, there is no need to distinguish multiple monitoring devices within the board, so the enumeration time of the board is unique to the monitoring device. Using the enumeration time as the seed, that is, as the input of the hash operation, a globally unique identification code can be obtained for subsequent address encoding. Still denoting the enumeration time as T and the identification code as UDID, the hash operation can be expressed as UDID=Hash({T}). In this way, the operation can be simplified, and the step of acquiring monitoring data can be omitted, thereby improving the processing efficiency.

Fig. 4 is a schematic flowchart of another monitoring device address management method provided by some embodiments of the present disclosure. As shown in FIG. 4, in some embodiments, in addition to steps S110 and S120, the method may further include step S130. Steps S110 and S120 in the method provided in this embodiment are basically the same as steps S110 and S120 in the method shown in FIG. 2 , and will not be repeated here.

Step S130: Send the identification code of the monitoring device to the BMC of the management board through the system management bus, so that the BMC performs address encoding based on the identification code to generate the address of the monitoring device.

For example, in step S130, since the monitoring device is managed based on the system management bus (SMbus), the identification code may be sent to the baseboard management controller that manages the board to which the monitoring device belongs via the SMbus. The baseboard management controller can address the identification code according to the ARP protocol in the SMbus protocol to obtain the address of the monitoring device. For example, the SMbus-based communication mode between the monitoring device and the BMC, the specific addressing mode based on the ARP protocol, etc. can refer to conventional designs, and will not be repeated here.

In the embodiments of the present disclosure, by using the enumeration time or the data set of the enumeration time and the monitoring data, the identification code of the monitoring device can be dynamically generated. This method does not need to modify the hardware, and does not need to set additional pull-up and pull-down resistors. Moreover, the identification code is not obtained based on the random number generation function, so the microprocessor on the board is not required to have the random number generation function. By using the enumeration time or the data set of enumeration time and monitoring data as a seed, the identification code of the monitoring device is processed and generated, which can effectively reduce the probability of code collision and reduce product costs.

FIG. 5A is one of the application flowcharts of the monitoring device address management method provided by some embodiments of the present disclosure. The application process for generating an identification code based on enumeration time and monitoring data will be briefly described below in conjunction with FIG. 5A .

First, the electronic device is powered on, that is, power is supplied to the electronic device to start working. Next, wait for the PCI-e board (or PCI board) to be enumerated by the host connected to it. The microprocessor on the board then determines if the enumeration is complete. If the enumeration is completed, record the enumeration time T1. If the enumeration is not completed, continue to wait and continue to judge whether to complete the enumeration after a predetermined time interval.

After the enumeration is completed and the enumeration time T1 is recorded, the microprocessor reads the monitoring data (PVT data) D0, D1, . . . , Dn of the monitoring devices on the board. Then, the microprocessor performs a hash operation according to the enumeration time T1 and the monitoring data D0, D1, ..., Dn, that is, UDID=Hash({T1, D0, D1, ..., Dn}), thus obtaining the monitoring Device identification code UDID.

FIG. 5B is the second application flowchart of the monitoring device address management method provided by some embodiments of the present disclosure. The application flow of generating an identification code based on the enumeration time will be briefly described below in conjunction with FIG. 5B .

First, the electronic device is powered on, that is, power is supplied to the electronic device to start working. Next, wait for the PCI-e board (or PCI board) to be enumerated by the host connected to it. The microprocessor on the board then determines if the enumeration is complete. If the enumeration is completed, record the enumeration time T2. If the enumeration is not completed, continue to wait and continue to judge whether to complete the enumeration after a predetermined time interval. After the enumeration is completed and the enumeration time T2 is recorded, the microprocessor performs a hash operation according to the enumeration time T2, that is, UDID=Hash({T2}), thereby obtaining the identification code UDID of the monitoring device.

It should be noted that the application process shown in FIG. 5A and FIG. 5B is only exemplary and not restrictive. In actual operation, other operation steps can also be added to the process, or the execution of the operation process can be adjusted. The sequence may be determined according to actual requirements, which is not limited in the embodiments of the present disclosure.

At least one embodiment of the present disclosure further provides a monitoring device address management method for a baseboard management controller. For example, the baseboard management controller is configured to manage at least one monitoring device located on at least one board based on the system management bus. The method is for example used in the electronic equipment shown in FIG. 1 , and the baseboard management controller implements the method by running the SMbus controller.

As shown in Fig. 6, in some embodiments, the method includes the following operations.

Step S210: receiving the identification code of the monitoring device, the identification code is generated based on the enumeration time of the board to which the monitoring device belongs;

Step S220: Based on the identification code, perform address encoding to generate the address of the monitoring device.

For example, in step S210, the identification code of the monitoring device may be received through a bus protocol between the monitoring device and the baseboard management controller. The identification code may be obtained through the methods shown in FIGS. 2 to 4 , that is, based on the enumeration time of the board, or based on the enumeration time and monitoring data of the monitoring device.

For example, the above step S210 may include: receiving the identification code of the monitoring device through a system management bus (SMbus). Since the baseboard management controller manages the monitoring device based on the SMbus, receiving the identification code based on the SMbus can improve efficiency. For example, when the baseboard management controller manages multiple boards, since the boards are enumerated sequentially, each board in the multiple boards corresponds to a different enumeration time, so that based on the enumeration The identification codes generated at different times can be different from each other.

For example, in step S220, after receiving the identification code, the baseboard management controller performs address encoding according to the identification code, so as to generate the address of the corresponding monitoring device. For example, the baseboard management controller may perform address encoding on the identification code according to the ARP protocol in the SMbus protocol. After obtaining the address of the monitoring device, the BMC can manage and operate the monitoring device according to the address.

Through the cooperation of the method shown in FIG. 6 and the methods shown in FIGS. 2 to 4 , an identification code of the monitoring device can be generated and an address of the monitoring device can be generated based on the identification code. Compared with the hardware addressing method and the random number-based software dynamic allocation method, the method provided by the embodiment of the present disclosure does not need to modify the hardware, does not need to set additional pull-up and pull-down resistors, and does not require the microprocessor on the board to have a random number. number generation function. The method can be used in a symmetrical multi-device system, and can effectively reduce the probability of code collision and reduce product costs.

At least one embodiment of the present disclosure further provides a monitoring device address management device. The device can dynamically generate the identification code of the monitoring device without modifying the hardware and without the random number generation function of the microprocessor on the board, which can effectively reduce the probability of code collision and reduce product cost.

Fig. 7 is a schematic block diagram of a monitoring device address management device provided by some embodiments of the present disclosure. As shown in FIG. 7 , the monitoring device address management apparatus 10 may be used for a board including at least one monitoring device, and the monitoring device is managed based on a system management bus. For example, the monitoring device address management device 10 includes an enumeration time acquisition unit 11 and an identification code generation unit 12 .

The enumeration time acquiring unit 11 is configured to acquire the enumeration time of the board. For example, the enumeration time acquiring unit 11 may execute step S110 of the monitoring device address management method as shown in FIG. 2 and FIG. 4 . The identification code generation unit 12 is configured to generate an identification code of the monitoring device based on the enumeration time, so as to be used for address coding of the monitoring device. For example, the identification code generating unit 12 may execute step S120 of the monitoring device address management method shown in FIG. 2 and FIG. 4 .

For example, the enumeration time acquisition unit 11 and the identification code generation unit 12 can be implemented as a microprocessor or a thread in the microprocessor, and the microprocessor is arranged on the board, so that the monitoring device on the board can be obtained through the above operations the identification code for . It should be noted that the enumeration time obtaining unit 11 and the identification code generating unit 12 may be hardware, software, firmware and any feasible combination thereof. For example, the enumeration time obtaining unit 11 and the identification code generating unit 12 may be dedicated or general-purpose circuits, chips or devices, or may be a combination of a processor and a memory. Embodiments of the present disclosure do not limit the specific implementation forms of the enumeration time acquisition unit 11 and the identification code generation unit 12 .

It should be noted that, in the embodiment of the present disclosure, each unit of the monitoring device address management device 10 corresponds to each step of the aforementioned monitoring device address management method, and the specific functions of the monitoring device address management device 10 can refer to the above monitoring The related description of the device address management method will not be repeated here. The components and structure of the monitoring device address management apparatus 10 shown in FIG. 7 are exemplary rather than limiting. The monitoring device address management apparatus 10 may also include other components and structures as required.

At least one embodiment of the present disclosure further provides a baseboard management controller. The baseboard management controller can perform address coding according to the identification code generated by using the enumeration time of the board, without modifying the hardware, and without requiring the microprocessor on the board to have a random number generation function, which can effectively reduce the probability of code collision and reduce the Product Cost.

Fig. 8 is a schematic block diagram of a baseboard management controller provided by some embodiments of the present disclosure. As shown in FIG. 8 , the baseboard management controller 20 is configured to manage at least one monitoring device located on at least one board based on the system management bus. For example, the baseboard management controller 20 includes an identification code acquisition unit 21 and an address generation unit 22 .

The identification code obtaining unit 21 is configured to receive the identification code of the monitoring device. For example, the identification code is generated based on the enumeration time of the board to which the monitoring device belongs. For example, the identification code acquiring unit 21 may execute step S210 of the monitoring device address management method shown in FIG. 6 . The address generating unit 22 is configured to perform address encoding based on the identification code, and generate the address of the monitoring device. For example, the address generating unit 22 may execute step S220 of the monitoring device address management method shown in FIG. 6 .

For example, the identification code acquisition unit 21 and the address generation unit 22 can be implemented as modules or threads in the baseboard management controller 20, and the baseboard management controller 20 can be a BMC and deployed in electronic devices including boards, so that through the above operations, The address of the monitoring device on the board. It should be noted that the identification code obtaining unit 21 and the address generating unit 22 may be hardware, software, firmware and any feasible combination thereof. For example, the identification code obtaining unit 21 and the address generating unit 22 may be dedicated or general-purpose circuits, chips or devices, or may be a combination of a processor and a memory. Regarding the specific implementation forms of the identification code obtaining unit 21 and the address generating unit 22, the embodiment of the present disclosure does not limit it.

It should be noted that, in the embodiment of the present disclosure, each unit of the baseboard management controller 20 corresponds to each step of the aforementioned monitoring device address management method. For the specific functions of the baseboard management controller 20, please refer to the above-mentioned monitoring device address The related description of the management method will not be repeated here. The components and structures of the baseboard management controller 20 shown in FIG. 8 are exemplary rather than limiting, and the baseboard management controller 20 may also include other components and structures as required.

At least one embodiment of the present disclosure further provides an electronic device, the electronic device includes the above monitoring device address management device or the above baseboard management controller. The electronic device can dynamically generate the identification code of the monitoring device, and perform address coding according to the identification code, without modifying the hardware and without the random number generation function of the microprocessor on the board, which can effectively reduce the probability of code collision and reduce the cost of the product. cost.

Fig. 9 is a schematic block diagram of an electronic device provided by some embodiments of the present disclosure. As shown in FIG. 9 , the electronic device 30 may include a monitoring device address management device 31 or a baseboard management controller 32 . For example, the monitoring device address management device 31 may be the monitoring device address management device 10 shown in FIG. 7 , and the baseboard management controller 32 may be the baseboard management controller 20 shown in FIG. 8 . For example, in some examples, the electronic device 30 may include a monitoring device address management device 31 and a baseboard management controller 32 at the same time, so as to generate an identification code of the monitoring device and perform address coding according to the identification code. For related descriptions about the electronic device 30 , reference may be made to the above descriptions about the monitoring device address management device 10 and the baseboard management controller 20 , which will not be repeated here.

Fig. 10 is a schematic block diagram of another electronic device provided by some embodiments of the present disclosure. As shown in FIG. 10 , an electronic device 40 includes a baseboard management controller 41 and at least one board. For example, multiple board cards PCI-e-1, PCI-e-2, ..., PCI-e-n are shown in the figure, but this does not constitute a limitation to the embodiment of the present disclosure. In some examples, the electronic device 40 can also Only one board is included. The board included in the electronic device 40 may be a PCI-e board, a PCI board, or a board of other bus types.

For example, the baseboard management controller 41 is in communication connection with at least one board. The baseboard management controller 41 may be a BMC, and communicates with the board based on a system management bus (SMbus), for example, communicates with a monitoring device (PVT device) provided on the board.

For example, each board includes a microprocessor and at least one monitoring device. In the example shown in Figure 10, board PCI-e-1 includes microprocessor MPU1 and monitoring device PVT-1, board card PCI-e-2 includes microprocessor MPU2 and monitoring device PVT-2, and so on , the board PCI-e-n includes a microprocessor MPUn and a monitoring device PVT-n.

For example, the monitoring device is configured to sense a parameter reflecting the operating state of the board. In the example shown in Figure 10, the monitoring device PVT-1 senses the parameter reflecting the running state of the board PCI-e-1, and the monitoring device PVT-2 senses the parameter reflecting the running state of the board PCI-e-2 The parameters are sensed, and so on, the monitoring device PVT-n senses the parameters reflecting the running state of the board card PCI-e-n. These parameters may include voltage parameters and/or temperature parameters.

For example, the microprocessor is configured to obtain the enumeration time of the board and generate an identification code of the monitoring device based on the enumeration time. For example, in the example shown in Figure 10, microprocessor MPU1 is configured to obtain the enumeration time of board PCI-e-1, and generates the identification code of monitoring device PVT-1 based on enumeration time; Microprocessor MPU2 configuration In order to obtain the enumeration time of the board PCI-e-2, and generate the identification code of the monitoring device PVT-2 based on the enumeration time; the microprocessor MPUn is configured to obtain the enumeration time of the board PCI-e-n, and based on the enumeration time Time generates the identification code of the monitoring device PVT-n. For example, the enumeration time can be used as the input of the hash operation, and the result of the hash operation can be used as the identification code. Alternatively, the data set composed of the enumeration time and the monitoring data of the monitoring device may also be used as the input of the hash operation, and the result of the hash operation may be used as the identification code.

For example, when there are multiple boards, the parameter types of the monitoring data used for calculation of each board are the same. When the monitoring data includes voltage parameters and/or temperature parameters, that is, when the monitoring data includes voltage values and/or temperature values, it is assumed that a plurality of boards include a first board and a second board, if the calculation of the first board The voltage value measured by the monitoring device is used when the identification code of a monitoring device on the second board is used, and the voltage value measured by the monitoring device is also used when calculating the identification code of a monitoring device on the second board; The temperature value measured by the monitoring device is used for the identification code of a monitoring device on a board, and the temperature value measured by the monitoring device is also used when calculating the identification code of a monitoring device on the second board. Therefore, the calculation results for the monitoring devices on different boards can have the same or similar precision and accuracy. Of course, in this case, for different monitoring devices on the same board, the parameter types of the monitoring data used for calculation are also the same.

For example, the baseboard management controller 41 is configured to receive the identification code of the monitoring device, and perform address encoding based on the identification code to generate the address of the monitoring device. For example, the baseboard management controller 41 can perform address encoding on the identification code according to the ARP protocol in the SMbus protocol, so as to obtain the addresses of each monitoring device PVT-1, PVT-2, . . . , PVT-n.

It should be noted that, in the embodiments of the present disclosure, the components and structures of the electronic device 40 are only exemplary rather than limiting, and the electronic device 40 may also include other components and structures as required. For the detailed description and technical effect of the electronic device 40, reference may be made to the above description of the monitoring device address management method, which will not be repeated here.

The following points need to be explained:

(1) Embodiments of the present disclosure The drawings only relate to the structures involved in the embodiments of the present disclosure, and other structures may refer to common designs.

(2) In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

The above description is only a specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

A monitoring device address management method, used for a board including at least one monitoring device, where the monitoring device is managed based on a system management bus, the method comprising:

Obtaining the enumeration time of the board, wherein the enumeration time is the time when the board is enumerated by a host connected to the board; and

Based on the enumeration time, an identification code of the monitoring device is generated for address encoding of the monitoring device.
The method according to claim 1, wherein, based on the enumeration time, generating the identification code of the monitoring device comprises:

obtaining monitoring data of each monitoring device in the at least one monitoring device;

For each monitoring device, an identification code of the monitoring device is generated according to the monitoring data and the enumeration time of the board.
The method according to claim 2, wherein, for each monitoring device, generating the identification code of the monitoring device according to the monitoring data and the enumeration time of the board includes:

The monitoring data and the enumeration time are used as input, a hash algorithm is used for calculation and a calculation result is obtained, and the calculation result is used as the identification code of the monitoring device.
The method of claim 2, wherein the monitoring data includes at least one of a voltage parameter and a temperature parameter.
The method according to claim 3, wherein the board includes a plurality of monitoring devices,

For each monitoring device in the plurality of monitoring devices, the parameter types of the monitoring data used for the calculation are the same.
The method according to claim 5, wherein each of the plurality of monitoring devices corresponds to a different identification code.
The method of claim 1, wherein said board includes a monitoring device,

Based on the enumeration time, generate the identification code of the monitoring device, including:

The enumeration time of the board is used as an input, a hash algorithm is used for calculation and a calculation result is obtained, and the calculation result is used as the identification code of the monitoring device.
The method according to claim 1, further comprising:

sending the identification code of the monitoring device to the baseboard management controller that manages the board through the system management bus, so that the baseboard management controller performs address encoding based on the identification code to generate an ID of the monitoring device. address.
The method according to any one of claims 1-8, wherein the board includes a peripheral component interconnection board or a peripheral component interconnection high-speed board.
The method according to claim 9 , wherein the board is connected to the host, and the enumeration time is that the board is controlled by the host based on a peripheral component interconnection bus or a peripheral component interconnection high-speed bus Enumeration time.
The method according to any one of claims 1-8, wherein the monitoring device comprises a sensor configured to sense a parameter reflecting an operating state of the board.
A monitoring device address management method for a baseboard management controller, wherein the baseboard management controller is configured to manage at least one monitoring device located on at least one board based on a system management bus,

The methods include:

receiving the identification code of the monitoring device, wherein the identification code is generated based on the enumeration time of the board to which the monitoring device belongs, and the enumeration time is when the board is enumerated by the host connected to the board the time of lifting; and

Based on the identification code, address encoding is performed to generate the address of the monitoring device.
The method of claim 12, wherein receiving the monitoring device identification code comprises:

An identification code for the monitoring device is received over the system management bus.
The method according to claim 12, wherein the at least one board is a plurality of boards, and each of the boards in the plurality of boards corresponds to a different enumeration time.
A monitoring device address management device, used for a board including at least one monitoring device, the monitoring device is managed based on a system management bus, the device includes:

The enumeration time obtaining unit is configured to obtain the enumeration time of the board, wherein the enumeration time is the time when the board is enumerated by the host connected to the board;

The identification code generating unit is configured to generate the identification code of the monitoring device based on the enumeration time, to be used for address coding of the monitoring device.
A baseboard management controller configured to manage at least one monitoring device located on at least one board based on a system management bus, wherein,

The baseboard management controller includes:

An identification code acquisition unit configured to receive the identification code of the monitoring device, wherein the identification code is generated based on the enumeration time of the board to which the monitoring device belongs, and the enumeration time is when the board is connected to the the timing of host enumeration to which the board is connected; and

The address generating unit is configured to perform address encoding based on the identification code, and generate the address of the monitoring device.
An electronic device, comprising the monitoring device address management device according to claim 15 or the baseboard management controller according to claim 16.
An electronic device, comprising a baseboard management controller and at least one board, wherein the baseboard management controller is communicatively connected to the at least one board, and each board includes a microprocessor and at least one monitoring device;

The microprocessor is configured to obtain the enumeration time of the board, and generate the identification code of the monitoring device based on the enumeration time, wherein the enumeration time is when the board is connected to the board The time at which the card is connected to the host enumeration;

The monitoring device is configured to sense parameters reflecting the operating state of the board;

The baseboard management controller is configured to receive the identification code of the monitoring device, and perform address encoding based on the identification code to generate the address of the monitoring device.