CN113468027B - Monitoring device address management method and device, substrate management controller and equipment - Google Patents
Monitoring device address management method and device, substrate management controller and equipment Download PDFInfo
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Abstract
A monitoring device address management method and device, a substrate management controller and electronic equipment are provided. The monitoring device address management method is used for a board card comprising at least one monitoring device, and the monitoring device is managed based on a system management bus. The method comprises the following steps: acquiring enumeration time of a board card; based on the enumeration time, an identification code of the monitoring device is generated for address encoding of the monitoring device. The method can dynamically generate the identification code of the monitoring device, hardware does not need to be modified, a microprocessor on a board card does not need to have a random number generation function, code collision probability can be effectively reduced, and product cost is reduced.
Description
Technical Field
The embodiment of the disclosure relates to a monitoring device address management method and device, a substrate management controller and electronic equipment.
Background
Computers or servers typically support expansion of peripherals, such as network cards, audio cards, sample cards, password cards, etc., through the motherboard's own slots. These expansion peripherals are usually designed in the form of a board card, which can be inserted into a slot provided in a computer or a server, and the computer or the server can use hardware resources provided by the board card by establishing a communication connection between the board card and a control unit of the computer or the server, thereby implementing hardware expansion.
Disclosure of Invention
At least one embodiment of the present disclosure provides a monitoring device address management method, for a board including at least one monitoring device, where the monitoring device manages based on a system management bus, the method including: acquiring enumeration time of the board card; generating an identification code of the monitoring device for address coding of the monitoring device based on the enumeration time.
For example, in a method provided by an embodiment of the present disclosure, generating an 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; and for each monitoring device, generating an identification code of the monitoring device according to the monitoring data and the enumeration time of the board card.
For example, in the method provided in an embodiment of the present disclosure, for each monitoring device, generating an identification code of the monitoring device according to the monitoring data and the enumeration time of the board card includes: and taking the monitoring data and the enumeration time as input, calculating by adopting a Hash algorithm to obtain a calculation result, and taking the calculation result as the identification code of the monitoring device.
For example, in a 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 the parameter types of the monitoring data used for the calculation are the same for each of the plurality of monitoring devices.
For example, in a method provided by an embodiment of the present disclosure, each of the plurality of monitoring devices corresponds to a different identification code.
For example, in a method provided in an embodiment of the present disclosure, the board includes a monitoring device, and generating an identification code of the monitoring device based on the enumeration time includes: and taking the enumeration time of the board card as input, calculating by adopting a Hash algorithm to obtain a calculation result, and taking the calculation result as the identification code of the monitoring device.
For example, an embodiment of the present disclosure provides a method further including: and sending the identification code of the monitoring device to a baseboard management controller for managing the board card through the system management bus so that the baseboard management controller carries out address coding based on the identification code to generate the address of the monitoring device.
For example, in the method provided by an embodiment of the present disclosure, the board includes a peripheral component interconnect board or a peripheral component interconnect high-speed board.
For example, in a method provided by an embodiment of the present disclosure, the board is connected to a host, and the enumeration time is a time when the board is enumerated by the host based on a peripheral component interconnect bus or a peripheral component interconnect high-speed bus.
For example, in one embodiment of the present disclosure, the monitoring device includes a sensor configured to sense a parameter that reflects an operational state of the board.
At least one embodiment of the present disclosure provides a monitoring device address management method for a baseboard management controller, where 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, and the method includes: receiving an identification code of the monitoring device, wherein the identification code is generated based on enumeration time of a board card to which the monitoring device belongs; and performing address coding based on the identification code to generate an address of the monitoring device.
For example, in a method provided by an embodiment of the present disclosure, receiving the identification code of the monitoring device includes: receiving an 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 card is a plurality of board cards, and each of the board cards corresponds to different enumeration times.
At least one embodiment of the present disclosure provides a monitoring device address management apparatus for a board including at least one monitoring device, where the monitoring device manages based on a system management bus, the apparatus including: an enumeration time acquisition unit configured to acquire enumeration time of the board card; an identification code generation unit configured to generate an identification code of the monitoring device for address coding of the monitoring device based on the enumeration time.
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: the identification code acquisition unit is configured to receive an identification code of the monitoring device, wherein the identification code is generated based on enumeration time of a board card to which the monitoring device belongs; and the address generating unit is configured to perform address coding based on the identification code to generate an address of the monitoring device.
At least one embodiment of the present disclosure provides an electronic device including the monitoring device address management apparatus or the baseboard management controller provided in 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 card, wherein the baseboard management controller is in communication connection with the at least one board card, and each board card includes a microprocessor and at least one monitoring device; the microprocessor is configured to acquire enumeration time of the board card and generate an identification code of the monitoring device based on the enumeration time; the monitoring device is configured to sense a parameter reflecting an operating state of the board card; the baseboard management controller is configured to receive the identification code of the monitoring device, perform address coding based on the identification code, and generate an address of the monitoring device.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.
FIG. 1 is a schematic block diagram of an electronic device;
FIG. 2 is a schematic flow chart of a monitoring device address management method according to some embodiments of the present disclosure;
FIG. 3 is an exemplary flowchart of step S120 of FIG. 2;
FIG. 4 is a schematic flow chart of another monitoring device address management method according to some embodiments of the present disclosure;
fig. 5A is an application flowchart of a monitoring device address management method according to some embodiments of the present disclosure;
fig. 5B is a second flowchart illustrating an application of the address management method for monitoring devices according to some embodiments of the disclosure;
FIG. 6 is a flow chart illustrating a monitoring device address management method according to some embodiments of the present disclosure;
FIG. 7 is a schematic block diagram of a monitoring device address management apparatus according to some embodiments of the present disclosure;
fig. 8 is a schematic block diagram of a baseboard management controller according to 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 Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The board card is used as an additional hardware device of a computer peripheral and is widely applied to the field of computers. The board card is communicated with the computer by adopting a bus protocol so as to receive control signals, control commands and the like sent by the computer and send feedback information to the computer. A bus protocol for a board that is commonly used includes a Peripheral Component Interconnect (PCI) bus and a Peripheral Component Interconnect Express (PCI-e) bus, and the corresponding board is referred to as a PCI board or a PCI-e board. One or more monitoring devices can be arranged on the PCI board card and the PCI-e board card, and the monitoring devices can monitor the running state of the board cards, so that the board cards can be managed by a computer conveniently.
Fig. 1 is a schematic block diagram of an electronic device. As shown in fig. 1, in the electronic apparatus, a host 01 is connected to a plurality of PCI-e boards. For example, the host 01 may be a general computer or a server, which provides a plurality of slots to facilitate connection with a PCI-e board card, thereby implementing hardware expansion. In this example, a plurality of cards PCI-e-1, PCI-e-2, …, PCI-e-n are communicatively coupled to host 01 via a PCI-e Bridge (PCI-e Bridge). The PCI-e bridge may be typically integrated in a south bridge chip or a north bridge chip of the host 01. The PCI-e-1, PCI-e-2, … and PCI-e-n boards transmit data to the host 01 based on the PCI-e bus. It should be noted that, although this example is described by taking a PCI-e board as an example, it may be understood by those skilled in the art that a PCI board may also be used, and the embodiment of the present disclosure is not limited thereto.
For example, one or more monitoring devices may be disposed on the boards PCI-e-1, PCI-e-2, …, and PCI-e-n, and these monitoring devices may monitor the operation status of the boards PCI-e-1, PCI-e-2, …, and PCI-e-n, so as to manage the boards PCI-e-1, PCI-e-2, …, and PCI-e-n. For example, the monitoring device may be referred to as a PVT (Process and Temperature) device, and may sense parameters such as Voltage and Temperature of the board. In the example shown in fig. 1, each board is provided with a monitoring device, for example, the board PCI-e-1 is provided with the monitoring device PVT-1, the board PCI-e-2 is provided with the monitoring device PVT-2, and so on, and the board PCI-e-n is provided with the monitoring device PVT-n. Of course, the embodiment of the present disclosure is not limited thereto, and a plurality of monitoring devices may be disposed on each board card, which may be determined according to actual requirements.
For example, the monitoring devices PVT-1, PVT-2, …, PVT-n communicate with the host 01 via a System Management Bus (SMbus), such as an SMbus Controller deployed in a Baseboard Management Controller (BMC) of the host 01. For example, the monitoring devices PVT-1, PVT-2, …, PVT-n may receive control commands or control signals from the BMC via the SMbus and transmit the measured data to the BMC. SMBus is a bus protocol widely used by BMC, and generally, a computer system has a plurality of PCI boards or PCI-e boards, which further include one or more monitoring devices based on SMBus management to monitor the operating states of computer power supplies, accessories, and the like.
For example, when the host 01 is connected to a plurality of boards and at least some of the boards are of the same type, in order to identify and distinguish the monitoring devices on the respective boards, address coding is performed on the respective monitoring devices, that is, addresses are allocated to the respective monitoring devices.
For example, in some examples, the address may be determined using hardware addressing. For example, different pull-up and pull-down resistors are configured on the main chassis backplane for different PCI-e slots. After the board card is inserted into the PCI-e slot, the electrical connection is generated due to hardware contact, so that the address of the monitoring device can be determined. However, this approach requires additional considerations in hardware design, increases hardware cost, and relies on the electrical connection of the board and the socket, and the number of devices that can be supported in this approach is limited by physical size, board manufacturing process, and other factors.
For example, in other examples, the address may be determined in a manner dynamically assigned by software. For example, the Address coding may be implemented according to an Address Resolution Protocol (ARP) in the SMbus Protocol. At this time, each monitoring device is required to provide a unique identification code (UDID) by itself, and after the identification code of each monitoring device is determined, an address is generated based on the identification code. However, the ARP protocol requires that each monitoring device provides a unique identification code, and in a symmetric multi-device system, there is a certain probability that a "code collision" will occur (i.e., the identification codes of different monitoring devices are the same) even if a pseudo-random number is used as a seed. Moreover, in this method, a Microprocessor (Microprocessor Unit) on the board card is required to have a random number generation function, which has a high requirement on the hardware of the board card.
The addressing mode, whether a hardware addressing mode or a software dynamic allocation mode based on random numbers, has limitations, brings adverse effects on the performance, structure, cost and the like of equipment comprising the board card, and cannot meet the increasing demands.
At least one embodiment of the disclosure provides a monitoring device address management method and device, a substrate management controller and electronic equipment. The method can dynamically generate the identification code of the monitoring device, hardware does not need to be modified, a microprocessor on a board card does not need to have a random number generation function, code collision probability can be effectively reduced, and product cost is reduced.
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 in different figures will be used to refer to the same elements that have been 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 card comprising at least one monitoring device, and the monitoring device is managed based on a system management bus. The method comprises the following steps: acquiring enumeration time of a board card; based on the enumeration time, an identification code of the monitoring device is generated for address encoding of the monitoring device.
Fig. 2 is a schematic flowchart of a monitoring device address management method according to some embodiments of the present disclosure. As shown in fig. 2, in some embodiments, the method includes the following operations.
Step S110: acquiring enumeration time of a board card;
step S120: based on the enumeration time, an identification code of the monitoring device is generated for address encoding of the monitoring device.
For example, the method may be used for a board that includes at least one monitoring device that is managed based on a system management bus. For example, the method may be used for various PCI-e boards as shown in FIG. 1 and electronic devices containing such PCI-e boards.
For example, in step S110, the microprocessor on the board may obtain the enumeration time of the board. For example, when the card is connected to the host 01, that is, when the card is inserted into a slot provided in the host 01, if the card is a PCI card or a PCI-e card, the card is enumerated by the host 01 based on the PCI bus or the PCI-e bus. Here, the enumeration time refers to a time when the board is enumerated by the host 01 based on the PCI bus or the PCI-e bus, that is, a corresponding time in a system time in which a time module in the host 01 runs when enumeration is performed. For example, the enumeration may be implemented using an MSI _ CAPABILITY _ REGISTER and an MSI _ CONTROL _ REGISTER. After enumeration is complete, the enumeration time may be determined by querying a PCI-e MSI _ CAPABILITY _ REGISTER or like REGISTER for changes. Specific descriptions of the enumeration of PCI boards or PCI-e boards may refer to conventional designs and will not be described in detail herein.
For example, in step S120, an identification code of the monitoring device may be generated according to the enumeration time, which may be used for address encoding of subsequent monitoring devices. Because each board card is enumerated on the PCI bus or the PCI-e bus in sequence and not simultaneously enumerated, each board card corresponds to a unique enumeration time, the enumeration time and the board card have a specific corresponding relation, so that the identification code of the monitoring device can be generated by utilizing the enumeration time, the correspondingly generated identification code and the monitoring device on the board card have a specific corresponding relation, and the identification code of the monitoring device has uniqueness.
For example, in some examples, as shown in fig. 3, the step S120 may further include the following operations.
Step S121: acquiring monitoring data of each monitoring device in at least one monitoring device;
step S122: and for each monitoring device, generating an identification code of the monitoring device according to the monitoring data and the enumeration time of the board card.
For example, in step S121, the monitoring device may be a PVT device disposed on the board, and the monitoring device may acquire at least one of a voltage parameter and a temperature parameter of the board. The monitoring data of the monitoring device refers to data acquired by the monitoring device, and may also be referred to as PVT data, and accordingly, the monitoring data includes at least one of a voltage parameter and a temperature parameter, and thus, the monitoring data may be a voltage value, a temperature value, and the like. For example, in some examples, the monitoring device is a sensor configured to sense a parameter reflecting an operating condition of the board, the parameter reflecting the operating condition of the board including at least one of a voltage parameter and a temperature parameter. For example, the microprocessor on the board can obtain the monitoring data of the monitoring device.
For example, when a board card is provided with a monitoring device, monitoring data of the monitoring device needs to be acquired; when the board card is provided with a plurality of monitoring devices, monitoring data of each monitoring device needs to be acquired. When the board card is provided with a plurality of monitoring devices, each monitoring device may be a different type of monitoring device for obtaining different types of monitoring data, or each monitoring device may be a same type of monitoring device for monitoring different portions or different signal paths of the board card.
For example, in step S122, for each monitoring device, the 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 a preset number of bits, for example, 64 bits, 32 bits, 16 bits, 8 bits, or any other number of bits, and the like, which is not limited by the embodiment of the disclosure. For example, the identification code may be represented in any type of data format, such as integer type, character type, floating point type, and the like, which is not limited by the embodiments of the present disclosure.
For example, in one example, step S122 may include: and taking the monitoring data and the enumeration time as input, calculating by adopting a Hash algorithm to obtain a calculation result, and taking the calculation result as the identification code of the monitoring device. The hash algorithm, which may also be referred to as a hash algorithm, may transform an input of arbitrary length into an output of fixed length by a hash computation. Because the monitoring data measured by each monitoring device is different and the enumeration time of different board cards is also different, a data set consisting of the monitoring data and the enumeration time is unique for each monitoring device. The monitoring data and the enumeration time are used as seeds, namely, as the input of hash operation, and the globally unique identification code can be obtained. Therefore, different monitoring devices correspond to different identification codes, and address coding is convenient to carry out subsequently. When a plurality of monitoring devices are present, each of the plurality of monitoring devices corresponds to a different identification code, respectively. For example, the microprocessor provided on the board may perform a hash operation and generate the identification code. Of course, the embodiments of the present disclosure are not limited thereto, and the hash operation may be performed by other suitable firmware or hardware on the board.
For example, the monitoring data may be represented as D0, D1, …, Dn, where D0, D1, …, Dn may represent a plurality of values obtained by sampling the same type of parameter for a plurality of times, or may also refer to values obtained by sampling different types of parameters respectively, which may be determined according to actual requirements, and the embodiment of the present disclosure is not limited thereto.
Assuming that the enumeration time is denoted T and the identification code is denoted UDID, the Hash operation may be denoted UDID = Hash ({ T, D0, D1, …, Dn }). It should be noted that when performing the Hash operation, any one or more values of D0, D1, …, Dn may be used, but not limited to 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 }) and the like, which may be determined according to actual requirements, and the embodiment of the present disclosure is not limited thereto.
For example, when there are a plurality of monitoring devices, the parameter type of the monitoring data employed for the calculation is the same for each of the plurality of monitoring devices. That is, assuming that the plurality of monitoring devices include a first monitoring device and a second monitoring device, if the voltage value measured by the first monitoring device is adopted when calculating the identification code of the first monitoring device, the voltage value measured by the second monitoring device is also adopted when calculating the identification code of the second monitoring device; if the temperature value measured by the first monitoring device is adopted when the identification code of the first monitoring device is calculated, the temperature value measured by the second monitoring device is also adopted when the identification code of the second monitoring device is calculated. Therefore, the calculation results for different monitoring devices can have the same or similar precision and accuracy.
It should be noted that, in the embodiment of the present disclosure, the monitoring data is not limited to the voltage parameter and the temperature parameter, and may also be other types of parameters, such as a power parameter, a frequency parameter, a current parameter, and the like, and general PVT data may be used as the monitoring data, which is not limited in this respect. The algorithm for calculating the identification code is not limited to the hash algorithm, and other types of algorithms may also be used, and only the corresponding code needs to be generated based on the monitoring data and the enumeration time to serve as the identification code, which may be determined according to actual requirements, and the embodiment of the present disclosure is not limited thereto.
For example, in some examples, if only one monitoring device is disposed on a board, the hash operation may be performed only by using the enumeration time of the board, without using the monitoring data of the monitoring device. For example, the step S120 may include: taking enumeration time of the board card as input, calculating by adopting a Hash algorithm to obtain a calculation result, and taking the calculation result as an identification code of the monitoring device. Because the board card is provided with only one monitoring device, a plurality of monitoring devices do not need to be distinguished in the board card, and the enumeration time of the board card is unique for the monitoring devices. The enumeration time is used as a seed, namely, as the input of the hash operation, so that a globally unique identification code can be obtained, and the address coding can be conveniently carried out subsequently. Still representing the enumeration time as T and the identification code as UDID, the Hash operation can be represented as UDID = Hash ({ T }). In this way, the operation can be simplified, and the step of acquiring the monitoring data can be omitted, thereby improving the processing efficiency.
Fig. 4 is a schematic flowchart of another monitoring device address management method according to some embodiments of the present disclosure. As shown in fig. 4, in some embodiments, in addition to including steps S110 and S120, the method may also include step S130. Steps S110 and S120 in the method provided in this embodiment are substantially the same as steps S110 and S120 in the method shown in fig. 2, and are not described again here.
Step S130: and sending the identification code of the monitoring device to a baseboard management controller of the management board card through a system management bus so that the baseboard management controller carries out address coding based on the identification code to generate an address of the monitoring device.
For example, in step S130, since the monitoring device is managed based on a 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 perform address coding on the identification code according to an ARP protocol in the SMbus protocol to obtain an address of the monitoring device. For example, a mode of communication between the monitoring device and the baseboard management controller based on SMbus, a specific addressing mode based on ARP protocol, and the like may refer to conventional designs, and details thereof are not described herein.
In embodiments of the present disclosure, the identification code of the monitoring device may be dynamically generated by using an enumeration time or a data set of an enumeration time and monitoring data. The method does not need to modify hardware and additionally arrange an upper pull-down resistor. Moreover, the identification code is not obtained based on the random number generation function, so that 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 the enumeration time and the monitoring data as seeds, the identification code of the monitoring device is processed and generated, so that the code collision probability can be effectively reduced, and the product cost is reduced.
Fig. 5A is an application flowchart of a monitoring device address management method according to some embodiments of the present disclosure. The application flow of generating the identification code based on the enumeration time and the monitoring data is briefly described below with reference to fig. 5A.
First, the electronic device is powered on, i.e., power is supplied to the electronic device to start its operation. Then, wait for the host to which the PCI-e board (which may also be a PCI board) is connected to enumerate. Then, the microprocessor on the board card judges whether enumeration is completed. If enumeration is complete, then an enumeration time T1 is recorded. If the enumeration is not finished, continuously waiting and continuously judging whether the enumeration is finished after a preset 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 based on the enumeration time T1 and the monitoring data D0, D1, …, Dn, that is, UDID = Hash ({ T1, D0, D1, …, Dn }), thereby obtaining the identification code UDID of the monitoring device.
Fig. 5B is a second application flowchart of a monitoring device address management method according to some embodiments of the present disclosure. The application flow for generating the identification code based on the enumeration time will be briefly described with reference to fig. 5B.
First, the electronic device is powered on, i.e., power is supplied to the electronic device to start its operation. Then, wait for the host to which the PCI-e board (which may also be a PCI board) is connected to enumerate. Then, the microprocessor on the board card judges whether enumeration is completed. If enumeration is complete, then an enumeration time T2 is recorded. If the enumeration is not finished, continuously waiting and continuously judging whether the enumeration is finished after a preset 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 flows shown in fig. 5A and fig. 5B are only exemplary and not limiting, and in actual operation, other operation steps may be added to the flows, or the execution sequence of the operation flows may be adjusted, which may be determined according to actual needs, and this is not limited by the embodiments of the present disclosure.
At least one embodiment of the present disclosure further provides a monitoring device address management method, which is used 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 a system management bus. The method is used, for example, in an electronic device such as that shown in fig. 1, and the baseboard management controller implements the method by operating an SMbus controller.
As shown in fig. 6, in some embodiments, the method includes the following operations.
Step S210: receiving an identification code of a monitoring device, wherein the identification code is generated based on enumeration time of a board card to which the monitoring device belongs;
step S220: and based on the identification code, carrying out address coding to generate an 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 by the method shown in fig. 2 to 4, that is, based on the enumeration time of the board, or based on the enumeration time and the monitoring data of the monitoring device.
For example, the step S210 may include: the identification code of the monitoring device is received via a system management bus (SMbus). Because the baseboard management controller manages the monitoring devices based on the SMbus, receiving the identification codes based on the SMbus may improve efficiency. For example, when the baseboard management controller manages a plurality of boards, since the boards are enumerated in sequence, each of the boards corresponds to different enumeration times, so that the identification codes generated based on the enumeration times may be different from each other.
For example, in step S220, after receiving the identification code, the baseboard management controller performs address coding according to the identification code, thereby generating an address of the corresponding monitoring device. For example, the baseboard management controller may address encode the identification code according to an ARP protocol in the SMbus protocol. After obtaining the address of the monitoring device, the baseboard management controller can manage and operate the monitoring device according to the address.
By the method shown in fig. 6 in cooperation with the methods shown in fig. 2 to 4, it is possible to generate an identification code of the monitoring device and to generate an address of the monitoring device based on the identification code. Compared with a hardware addressing mode and a software dynamic allocation mode based on random numbers, the method provided by the embodiment of the disclosure does not need to modify hardware, does not need to additionally set up an upper pull-down resistor, and does not need a microprocessor on a board card to have a random number generation function. The method can be used in a symmetrical multi-equipment system, and can effectively reduce the code collision probability and reduce the product cost.
At least one embodiment of the present disclosure also provides a monitoring device address management apparatus. The device can dynamically generate the identification code of the monitoring device, hardware does not need to be modified, a microprocessor on a board card does not need to have a random number generation function, code collision probability can be effectively reduced, and product cost is reduced.
Fig. 7 is a schematic block diagram of a monitoring device address management apparatus according to 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 that performs management based on a system management bus. For example, the monitoring device address management apparatus 10 includes an enumeration time acquisition unit 11 and an identification code generation unit 12.
The enumeration time obtaining unit 11 is configured to obtain enumeration time of a board. For example, the enumeration time acquisition unit 11 may execute step S110 of the monitoring device address management method shown in fig. 2 and 4. The identification code generation unit 12 is configured to generate an identification code of the monitoring device for address encoding of the monitoring device based on the enumeration time. For example, the identification code generation unit 12 may perform step S120 of the monitoring device address management method as shown in fig. 2, 4.
For example, the enumeration time obtaining unit 11 and the identification code generating unit 12 may be implemented as a microprocessor or a thread in a microprocessor, which is disposed on a board, so as to obtain the identification code of the monitoring device on the board through the above operations. It should be noted that the enumeration time obtaining unit 11 and the identification code generating unit 12 may be hardware, software, firmware, or any feasible combination thereof. For example, the enumeration time obtaining unit 11 and the identification code generating unit 12 may be dedicated or general circuits, chips, devices, or the like, or may be a combination of a processor and a memory. As to specific implementation forms of the enumeration time obtaining unit 11 and the identification code generating unit 12, embodiments of the present disclosure are not limited thereto.
It should be noted that, in the embodiment of the present disclosure, each unit of the monitoring device address management apparatus 10 corresponds to each step of the foregoing monitoring device address management method, and for the specific function of the monitoring device address management apparatus 10, reference may be made to the above description of the monitoring device address management method, which is not described herein again. The components and structure of the monitoring device address management apparatus 10 shown in fig. 7 are only exemplary and not limiting, and the monitoring device address management apparatus 10 may further include other components and structures as necessary.
At least one embodiment of the present disclosure also provides a baseboard management controller. The substrate management controller can carry out address coding according to the identification code generated by the enumeration time of the board card, hardware does not need to be modified, a microprocessor on the board card does not need to have a random number generation function, code collision probability can be effectively reduced, and product cost is reduced.
Fig. 8 is a schematic block diagram of a baseboard management controller according to some embodiments of the present disclosure. As shown in fig. 8, baseboard management controller 20 is configured to manage at least one monitoring device located on at least one board based on a system management bus. For example, the board management controller 20 includes an identification code acquisition unit 21 and an address generation unit 22.
The identification code acquisition unit 21 is configured to receive an identification code of the monitoring device. For example, the identification code is generated based on an enumeration time of a board to which the monitoring device belongs. For example, the identification code acquisition unit 21 may perform step S210 of the monitoring device address management method as shown in fig. 6. The address generation unit 22 is configured to perform address coding based on the identification code, and generate an address of the monitoring device. For example, the address generation unit 22 may perform step S220 of the monitoring device address management method as shown in fig. 6.
For example, the identification code obtaining unit 21 and the address generating unit 22 may be implemented as modules or threads in the baseboard management controller 20, and the baseboard management controller 20 may be a BMC and is disposed in an electronic device including a board, so as to obtain an address of the monitoring device on the board through the above operations. It should be noted that the identification code obtaining unit 21 and the address generating unit 22 may be hardware, software, firmware, or any feasible combination thereof. For example, the identification code obtaining unit 21 and the address generating unit 22 may be dedicated or general circuits, chips, devices, or the like, or may be a combination of a processor and a memory. As to the specific implementation forms of the identification code obtaining unit 21 and the address generating unit 22, the embodiment of the present disclosure is not limited to this.
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 monitoring device address management method, and for the specific function of the baseboard management controller 20, reference may be made to the description related to the monitoring device address management method, and details are not described here again. The components and configuration of baseboard management controller 20 shown in FIG. 8 are exemplary only, and not limiting, and baseboard management controller 20 may also include other components and configurations as desired.
At least one embodiment of the present disclosure further provides an electronic device, which includes the monitoring device address management apparatus or the baseboard management controller. The electronic equipment can dynamically generate the identification code of the monitoring device, carries out address coding according to the identification code, does not need to modify hardware, does not need a microprocessor on a board card to have a random number generation function, can effectively reduce the code collision probability and reduce the product cost.
Fig. 9 is a schematic block diagram of an electronic device provided in some embodiments of the present disclosure. As shown in fig. 9, the electronic apparatus 30 may include a monitoring device address management apparatus 31 or a baseboard management controller 32. For example, the monitoring device address management apparatus 31 may be the monitoring device address management apparatus 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 both the monitoring device address management apparatus 31 and the baseboard management controller 32 to generate an identification code of the monitoring device and perform address coding according to the identification code. For the description of the electronic device 30, reference may be made to the above description of the monitoring device address management apparatus 10 and the baseboard management controller 20, and details are not 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, the electronic apparatus 40 includes a board management controller 41 and at least one board. For example, a plurality of cards PCI-e-1, PCI-e-2, …, PCI-e-n are shown, but this is not a limitation of embodiments of the present disclosure, and in some examples, electronic device 40 may also include only one card. The board included in the electronic device 40 may be a PCI-e board, a PCI board, or a board of another bus type.
For example, the baseboard management controller 41 is communicatively connected to at least one board. The baseboard management controller 41 may be a BMC and may be communicatively coupled to the board based on a system management bus (SMbus), for example, to a monitoring device (PVT device) disposed on the board.
For example, each board includes a microprocessor and at least one monitoring device. In the example shown in FIG. 10, the board PCI-e-1 comprises a microprocessor MPU1 and a monitoring device PVT-1, the board PCI-e-2 comprises a microprocessor MPU2 and a monitoring device PVT-2, and so on, the board PCI-e-n comprises a microprocessor MPUn and a monitoring device PVT-n.
For example, the monitoring device is configured to sense a parameter that reflects the operational status of the board. In the example shown in fig. 10, the monitoring device PVT-1 senses a parameter reflecting the operating state of the board PCI-e-1, the monitoring device PVT-2 senses a parameter reflecting the operating state of the board PCI-e-2, and so on, and the monitoring device PVT-n senses a parameter reflecting the operating state of the board PCI-e-n. These parameters may include voltage parameters and/or temperature parameters.
For example, the microprocessor is configured to obtain an 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 fig. 10, the microprocessor MPU1 is configured to acquire the enumeration time of the board PCI-e-1, and generate the identification code of the monitoring device PVT-1 based on the enumeration time; the microprocessor MPU2 is configured to acquire enumeration time of the board PCI-e-2 and generate an identification code of the monitoring device PVT-2 based on the enumeration time; the microprocessor MPUn is configured to acquire enumeration time of the board PCI-e-n and generate an identification code of the monitoring device PVT-n based on the enumeration time. For example, the enumeration time may be used as an input to a hash operation, and the result of the hash operation may be used as an identification code. Or, a data set composed of the enumeration time and the monitoring data of the monitoring device may be used as an input of the hash operation, and a result of the hash operation may be used as the identification code.
For example, when there are a plurality of boards, the parameter types of the monitoring data used for calculation for each board are the same. When the monitoring data includes a voltage parameter and/or a temperature parameter, that is, when the monitoring data includes a voltage value and/or a temperature value, assuming that the plurality of board cards include a first board card and a second board card, if the voltage value measured by a certain monitoring device on the first board card is adopted when calculating the identification code of the certain monitoring device on the first board card, the voltage value measured by the monitoring device is also adopted when calculating the identification code of the certain monitoring device on the second board card; if the temperature value measured by the monitoring device is adopted when the identification code of the monitoring device on the first board card is calculated, the temperature value measured by the monitoring device is also adopted when the identification code of the monitoring device on the second board card is calculated. Therefore, the calculation results of the monitoring devices on different boards can have the same or similar precision and accuracy. Of course, in this case, the parameter types of the monitoring data used for calculation are the same for different monitoring devices on the same board.
For example, the baseboard management controller 41 is configured to receive an identification code of the monitoring device, and perform address coding based on the identification code, and generate an address of the monitoring device. For example, the baseboard management controller 41 may address encode the identification codes according to the ARP protocol of the SMbus protocols to obtain the addresses of the individual monitoring devices PVT-1, PVT-2, …, PVT-n.
It should be noted that, in the embodiment of the present disclosure, the components and the structure of the electronic device 40 are only exemplary and not limiting, and the electronic device 40 may further include other components and structures as needed. For detailed description and technical effects of the electronic device 40, reference may be made to the above description of the address management method of the monitoring device, and details are not repeated here.
The following points need to be explained:
(1) the drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to common designs.
(2) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.
The above description is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the scope of the claims.
Claims (18)
1. A monitoring device address management method is used for a board card comprising at least one monitoring device, the monitoring device is managed based on a system management bus, and the method comprises the following steps:
acquiring enumeration time of the board card, wherein the enumeration time is the time when the board card is enumerated by a host connected with the board card; and
generating an identification code of the monitoring device for address coding of the monitoring device based on the enumeration time.
2. The method of claim 1, wherein generating an identification code of the monitoring device based on the enumeration time comprises:
acquiring monitoring data of each monitoring device in the at least one monitoring device;
and for each monitoring device, generating an identification code of the monitoring device according to the monitoring data and the enumeration time of the board card.
3. The method of claim 2, wherein for each monitoring device, generating an identification code for the monitoring device based on the monitoring data and an enumeration time of the board comprises:
and taking the monitoring data and the enumeration time as input, calculating by adopting a Hash algorithm to obtain a calculation result, and taking the calculation result as the identification code of the monitoring device.
4. The method of claim 2, wherein the monitoring data includes at least one of a voltage parameter and a temperature parameter.
5. The method of claim 3, wherein the board includes a plurality of monitoring devices,
the parameter types of the monitoring data used for the calculation are the same for each of the plurality of monitoring devices.
6. The method of claim 5, wherein each of the plurality of monitoring devices corresponds to a different identification code.
7. The method of claim 1, wherein said board includes a monitoring device,
generating an identification code for the monitoring device based on the enumeration time, including:
and taking the enumeration time of the board card as input, calculating by adopting a Hash algorithm to obtain a calculation result, and taking the calculation result as the identification code of the monitoring device.
8. The method of claim 1, further comprising:
and sending the identification code of the monitoring device to a baseboard management controller for managing the board card through the system management bus so that the baseboard management controller carries out address coding based on the identification code to generate the address of the monitoring device.
9. The method of any of claims 1-8, wherein the board comprises a peripheral component interconnect board or a peripheral component interconnect high speed board.
10. The method of claim 9, wherein the board is connected to the host, the enumeration time being a time at which the board is enumerated by the host based on a peripheral component interconnect bus or a peripheral component interconnect high speed bus.
11. The method of any of claims 1-8, wherein the monitoring device includes a sensor configured to sense a parameter reflective of an operational state of the board.
12. A monitoring device address management method is used for a baseboard management controller, wherein the baseboard management controller is configured to manage at least one monitoring device on at least one board based on a system management bus,
the method comprises the following steps:
receiving an identification code of the monitoring device, wherein the identification code is generated based on enumeration time of a board card to which the monitoring device belongs, and the enumeration time is time when the board card is enumerated by a host connected with the board card; and
and carrying out address coding based on the identification code to generate an address of the monitoring device.
13. The method of claim 12, wherein receiving the identification code of the monitoring device comprises:
receiving an identification code of the monitoring device through the system management bus.
14. The method of claim 12, wherein the at least one board is a plurality of boards, each of the plurality of boards corresponding to a different enumeration time.
15. A monitoring device address management device for a board including at least one monitoring device, the monitoring device being managed based on a system management bus, the device comprising:
an enumeration time obtaining unit configured to obtain enumeration time of the board card, where the enumeration time is time when the board card is enumerated by a host connected to the board card;
an identification code generation unit configured to generate an identification code of the monitoring device for address coding of the monitoring device based on the enumeration time.
16. A baseboard management controller configured to manage at least one monitoring device located on at least one board based on a system management bus,
the baseboard management controller comprises:
the identification code acquisition unit is configured to receive an identification code of the monitoring device, wherein the identification code is generated based on enumeration time of a board card to which the monitoring device belongs, and the enumeration time is time when the board card is enumerated by a host connected with the board card; and
and the address generating unit is configured to perform address coding based on the identification code to generate an address of the monitoring device.
17. An electronic device comprising the monitoring device address management apparatus of claim 15 or the baseboard management controller of claim 16.
18. An electronic device comprises a substrate management controller and at least one board card, wherein the substrate management controller is in communication connection with the at least one board card, and each board card comprises a microprocessor and at least one monitoring device;
the microprocessor is configured to acquire enumeration time of the board card and generate the identification code of the monitoring device based on the enumeration time, wherein the enumeration time is the time when the board card is enumerated by a host connected with the board card;
the monitoring device is configured to sense a parameter reflecting an operating state of the board card;
the baseboard management controller is configured to receive the identification code of the monitoring device, perform address coding based on the identification code, and generate an address of the monitoring device.
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| CN202111030311.9A CN113468027B (en) | 2021-09-03 | 2021-09-03 | Monitoring device address management method and device, substrate management controller and equipment |
| PCT/CN2022/115631 WO2023030275A1 (en) | 2021-09-03 | 2022-08-29 | Monitoring device address management method and apparatus, baseboard management controller, and device |
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| CN202111030311.9A CN113468027B (en) | 2021-09-03 | 2021-09-03 | Monitoring device address management method and device, substrate management controller and equipment |
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