CN107769960B - BMC management architecture based on CAN bus - Google Patents

BMC management architecture based on CAN bus Download PDF

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Publication number
CN107769960B
CN107769960B CN201710800866.4A CN201710800866A CN107769960B CN 107769960 B CN107769960 B CN 107769960B CN 201710800866 A CN201710800866 A CN 201710800866A CN 107769960 B CN107769960 B CN 107769960B
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main
module
management
transmission protocol
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CN107769960A (en
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刘同强
王朝辉
童元满
赵元
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Suzhou Inspur Intelligent Technology Co Ltd
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Suzhou Inspur Intelligent Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/02—Standardisation; Integration
    • H04L41/0246—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols
    • H04L41/0253—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols using browsers or web-pages for accessing management information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/22—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks comprising specially adapted graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Human Computer Interaction (AREA)
  • Selective Calling Equipment (AREA)
  • Computer And Data Communications (AREA)

Abstract

The invention provides a BMC management architecture based on CAN bus, comprising: the system comprises a remote management platform and a server substrate management unit in communication connection with the remote management platform; the server board management unit includes: the system comprises a baseboard management main unit, a plurality of baseboard management subunits and a network connection subunit; the substrate management main unit and the plurality of substrate management sub-units are respectively interconnected through the network connection sub-units; the remote management platform is in communication connection with the baseboard management main unit and is remotely connected to a server provided with the baseboard management sub-unit through the communication connection with the baseboard management main unit, the remote management platform inputs an IP address of the baseboard management sub-unit through a browser to open a management interface of the baseboard management sub-unit, the health condition of the server is monitored, the health condition of a processor, a power supply and a fan is checked, voltage, fan rotating speed and temperature data information are obtained, the working condition of each server is known in time, and risks are pre-estimated.

Description

BMC management architecture based on CAN bus
Technical Field
The invention relates to the technical field of servers, in particular to a BMC management framework based on a CAN bus.
Background
Through the remote management card, the administrator can the remote connection server, can open the management interface through the IP address of browser input management card, monitors server health status, watches the health status of key parts such as treater, power, fan, in time knows server operating condition, predicts the risk. The operation can be realized without a manager needing to locate a machine room. But this way is to implement a remote connection server by adding peripheral devices. Additional equipment is required, and a large amount of cost is increased. In particular, each server needs an additional device, which brings huge cost pressure, and in addition, the expansibility of the method is poor, and devices such as a router need to be added.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a BMC management architecture based on a CAN bus, which comprises: the system comprises a remote management platform and a server substrate management unit in communication connection with the remote management platform;
the server board management unit includes: the system comprises a baseboard management main unit, a plurality of baseboard management subunits and a network connection subunit;
the substrate management main unit and the plurality of substrate management sub-units are respectively interconnected through the network connection sub-units;
the remote management platform is in communication connection with the baseboard management main unit and is remotely connected to a server provided with the baseboard management sub-unit through the communication connection with the baseboard management main unit, the remote management platform inputs an IP address of the baseboard management sub-unit through a browser to open a management interface of the baseboard management sub-unit, the health condition of the server is monitored, the health condition of a processor, a power supply and a fan is checked, voltage, fan rotating speed and temperature data information are obtained, the working condition of each server is known in time, and risks are pre-estimated.
Preferably, the baseboard management main unit includes: a main BMC manager and a main CAN total module;
the master BMC manager includes: the device comprises a main ARM processor, a main USB _ SIE module, a main video information caching module, a main keyboard mouse message analysis module, a main CAN transmission protocol encapsulation analysis module, a main CAN processor and a main network transmission protocol encapsulation analysis module;
the main USB _ SIE module, the main video information caching module and the main keyboard and mouse message analyzing module are respectively connected with the main ARM processor, and respectively transmit video information and keyboard input and output information as well as mouse input and output information to the main ARM processor, the main ARM processor processes the received information and correspondingly feeds back corresponding feedback control instructions to the main video information caching module and the main keyboard and mouse message analyzing module;
the main ARM processor is provided with a video connection port and is connected to the video output device through the video connection port;
the main USB _ SIE module is provided with a USB bus connecting port, and the USB bus connecting port is connected with a USB bus of the BMC management framework;
the main network transmission protocol encapsulation and analysis module is connected with the network connection subunit, the main network transmission protocol encapsulation and analysis module interacts data information with the network connection subunit, and the main network transmission protocol encapsulation and analysis module analyzes the interacted data information;
the main CAN transmission protocol encapsulation and analysis module is connected with the main network transmission protocol encapsulation and analysis module, and is used for further encapsulating and analyzing the data information acquired and analyzed by the main network transmission protocol encapsulation and analysis module into data information in a CAN transmission protocol form and transmitting the transmitted data information to the main network transmission protocol encapsulation and analysis module in the CAN transmission protocol form;
the main CAN processor, the main video information cache module and the main keyboard and mouse message analysis module are respectively connected with the main CAN transmission protocol encapsulation analysis module;
the main CAN processor is also connected with the main CAN general module, the main CAN processor and the main CAN general module exchange data information, and the main CAN processor is used for transmitting the data information acquired from the main CAN transmission protocol encapsulation analysis module to the main CAN general module and transmitting the data information acquired from the main CAN general module to the main CAN transmission protocol encapsulation analysis module;
the main video information cache module and the main keyboard and mouse message analysis module respectively interact data information with the main CAN transmission protocol encapsulation analysis module.
Preferably, the master CAN bus module comprises: a master CAN controller, a first master CAN transceiver, a second master CAN transceiver;
the first end of the first master CAN transceiver and the first end of the second master CAN transceiver are respectively connected with the master CAN controller, and the first master CAN transceiver and the second master CAN transceiver are respectively in data interaction with the master CAN controller;
the main CAN controller is connected with the main CAN processor, and the main CAN controller and the main CAN processor perform data interaction;
and the second end of the first master CAN transceiver and the second end of the second master CAN transceiver are respectively connected with the network connection subunit, and the first master CAN transceiver and the second master CAN transceiver are respectively subjected to data interaction with the network connection subunit.
Preferably, the baseboard management subunit includes: a sub BMC manager and a sub CAN total module;
the sub-BMC manager includes: the system comprises a sub ARM processor, a sub USB _ SIE module, a sub video information caching module, a sub keyboard and mouse message analyzing module, a sub CAN transmission protocol packaging analyzing module, a sub CAN processor and a sub network transmission protocol packaging analyzing module;
the sub-USB _ SIE module, the sub-video information caching module and the sub-keyboard-mouse message analyzing module are respectively connected with the sub-ARM processor, and respectively transmit video information and keyboard input and output information as well as mouse input and output information to the sub-ARM processor, the sub-ARM processor processes the received information and correspondingly feeds back corresponding feedback control instructions to the sub-video information caching module and the sub-keyboard-mouse message analyzing module;
the sub ARM processor is provided with a video connection port and is connected to the video output device through the video connection port;
the sub USB _ SIE module is provided with a USB bus connecting port, and the USB bus connecting port is connected with a USB bus of the BMC management framework;
the sub-network transmission protocol encapsulation and analysis module is connected with the network connection subunit, interacts data information with the network connection subunit, and analyzes the interacted data information;
the sub CAN transmission protocol encapsulation and analysis module is connected with the sub network transmission protocol encapsulation and analysis module, and is used for further encapsulating and analyzing the data information acquired and analyzed by the sub network transmission protocol encapsulation and analysis module into data information in a CAN transmission protocol form and transmitting the transmitted data information to the sub network transmission protocol encapsulation and analysis module in the CAN transmission protocol form;
the sub CAN processor, the sub video information cache module and the sub keyboard and mouse message analysis module are respectively connected with the sub CAN transmission protocol encapsulation analysis module;
the sub CAN processor is also connected with the sub CAN total module, the sub CAN processor and the sub CAN total module exchange data information, and the sub CAN processor is used for transmitting the data information acquired from the sub CAN transmission protocol encapsulation analysis module to the sub CAN total module and transmitting the data information acquired from the sub CAN total module to the sub CAN transmission protocol encapsulation analysis module;
and the sub video information cache module and the sub keyboard and mouse message analysis module respectively interact data information with the sub CAN transmission protocol encapsulation analysis module.
Preferably, the sub CAN master module includes: a sub CAN controller, a first sub CAN transceiver, a second sub CAN transceiver;
the first end of the first sub CAN transceiver and the first end of the second sub CAN transceiver are respectively connected with the sub CAN controllers, and the first sub CAN transceiver and the second sub CAN transceiver are respectively in data interaction with the sub CAN controllers;
the sub CAN controller is connected with the sub CAN processor, and the sub CAN controller and the sub CAN processor perform data interaction;
and the second ends of the first sub CAN transceivers and the second sub CAN transceivers are respectively connected with the network connection subunit, and the first sub CAN transceivers and the second sub CAN transceivers are respectively subjected to data interaction with the network connection subunit.
Preferably, the network connection subunit comprises: the circuit comprises a first high-speed bus, a first low-speed bus, a second high-speed bus, a second low-speed bus, a first resistor, a second resistor, a third resistor and a fourth resistor;
the first end of the first high-speed bus is connected with the first end of the first resistor, and the second end of the first high-speed bus is connected with the first end of the second resistor;
the first end of the first low-speed bus is connected with the second end of the first resistor, and the second end of the first low-speed bus is connected with the second end of the second resistor;
the first end of the second high-speed bus is connected with the first end of the third resistor, and the second end of the second high-speed bus is connected with the first end of the fourth resistor;
the first end of the second low-speed bus is connected with the second end of the third resistor, and the second end of the second low-speed bus is connected with the second end of the fourth resistor;
the main network transmission protocol encapsulation analysis module of the base plate management main unit is respectively connected with the first high-speed bus and the first low-speed bus, and the main network transmission protocol encapsulation analysis module of the base plate management main unit is respectively interacted with the first high-speed bus and the first low-speed bus in information;
the first main CAN transceiver of the baseboard management main unit is connected with the second high-speed bus, and the first main CAN transceiver of the baseboard management main unit is in information interaction with the second high-speed bus;
and the second main CAN transceiver of the baseboard management main unit is connected with the second low-speed bus, and the second main CAN transceiver of the baseboard management main unit is in information interaction with the second low-speed bus.
Preferably, the remote management platform comprises: the system comprises a substrate management main unit numbering module, a substrate management sub-unit numbering module and a numbering information transmission module;
the substrate management main unit numbering module is used for numbering the substrate management main units; the substrate management subunit numbering module is used for numbering each substrate management subunit;
and the numbering information processing module is used for numbering the data information transmitted remotely and transmitting the data information to the corresponding unit according to the numbering.
According to the technical scheme, the invention has the following advantages:
the BMC management architecture based on the CAN bus solves the problem that in the existing remote management system based on the BMC chip, the remote management of a large number of servers CAN be supported only by adding extra equipment, and has good expansibility; and remote access to a plurality of servers can be realized only by accessing the IP address of the baseboard management main unit and additionally adding a plurality of baseboard management sub-units.
The remote management platform is in communication connection with the baseboard management main unit and is remotely connected to the server provided with the baseboard management subunit, the remote management platform inputs the IP address of the baseboard management subunit through a browser to open a management interface of the baseboard management subunit, the health condition of the server is monitored, the health condition of the processor, the power supply and the fan is checked, voltage, fan rotating speed and temperature data information is obtained, the working condition of each server is known in time, and risks are estimated.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a general schematic diagram of a BMC management architecture based on a CAN bus;
fig. 2 is a schematic diagram of a baseboard management main unit.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
The invention provides a BMC management architecture based on CAN bus, as shown in FIG. 1, comprising: the system comprises a remote management platform 1 and a server substrate management unit 2 which is in communication connection with the remote management platform 1;
the server board management unit 2 includes: a baseboard management main unit 3, a plurality of baseboard management sub-units 4, a network connection sub-unit; the baseboard management main unit 3 and the baseboard management sub-units 4 are respectively interconnected through a network connection sub-unit;
the remote management platform 1 is in communication connection with the baseboard management main unit, the remote management platform is in communication connection with the baseboard management main unit and is remotely connected to a server provided with a baseboard management subunit, the remote management platform 1 inputs an IP address of the baseboard management subunit 4 through a browser to open a management interface of the baseboard management subunit 4, the health condition of the server is monitored, the health condition of a processor, a power supply and a fan is checked, voltage, fan rotating speed and temperature data information is obtained, the working condition of each server is known in time, and risks are pre-estimated.
In the present embodiment, as shown in fig. 2, the board management main unit 2 includes: a master BMC manager 9 and a master CAN bus module 10;
the master BMC manager 9 includes: the device comprises a main ARM processor 21, a main USB _ SIE module 22, a main video information cache module 23, a main keyboard and mouse message analysis module 24, a main CAN transmission protocol encapsulation analysis module 25, a main CAN processor 26 and a main network transmission protocol encapsulation analysis module 27;
the main USB _ SIE module 21, the main video information caching module 23 and the main keyboard and mouse message analyzing module 24 are respectively connected with the main ARM processor 21, and respectively transmit video information, keyboard input and output information and mouse input and output information to the main ARM processor, the main ARM processor processes the received information and correspondingly feeds back corresponding feedback control instructions to the main video information caching module and the main keyboard and mouse message analyzing module;
the main ARM processor 21 is provided with a video connection port 29, and the main ARM processor 21 is connected to a video output device through the video connection port;
the main USB _ SIE module 22 is provided with a USB bus connection port 28, and the USB bus connection port 28 is connected with a USB bus of the BMC management architecture;
the main network transmission protocol encapsulation and analysis module 27 is connected with the network connection subunit, the main network transmission protocol encapsulation and analysis module 27 interacts data information with the network connection subunit, and the main network transmission protocol encapsulation and analysis module 27 analyzes the interacted data information;
the main CAN transmission protocol encapsulation and analysis module 25 is connected with the main network transmission protocol encapsulation and analysis module 27, interacts data information with the main network transmission protocol encapsulation and analysis module, and is used for further encapsulating and analyzing the data information acquired and analyzed by the main network transmission protocol encapsulation and analysis module into data information in a CAN transmission protocol form and transmitting the transmitted data information to the main network transmission protocol encapsulation and analysis module in the CAN transmission protocol form;
the main CAN processor 26, the main video information cache module 23 and the main keyboard and mouse message analysis module 24 are respectively connected with the main CAN transmission protocol encapsulation analysis module 25;
the main CAN processor 26 is also connected with the main CAN general module 10, interacts data information with the main CAN general module, and is used for transmitting the data information acquired from the main CAN transmission protocol encapsulation analysis module to the main CAN general module and transmitting the data information acquired from the main CAN general module to the main CAN transmission protocol encapsulation analysis module; the main video information cache module and the main keyboard and mouse message analysis module respectively interact data information with the main CAN transmission protocol encapsulation analysis module.
The master CAN master module 10 includes: a master CAN controller 31, a first master CAN transceiver 32, a second master CAN transceiver 33;
the first end of the first master CAN transceiver 32 and the first end of the second master CAN transceiver 33 are respectively connected with the master CAN controller 31, and the first master CAN transceiver 32 and the second master CAN transceiver 33 respectively perform data interaction with the master CAN controller 31;
the main CAN controller 31 is connected with the main CAN processor 26, and the main CAN controller 31 and the main CAN processor 26 perform data interaction; the second ends of the first master CAN transceiver 32 and the second master CAN transceiver 33 are connected to the network connection subunit, respectively, and the first master CAN transceiver and the second master CAN transceiver perform data interaction with the network connection subunit, respectively.
In this embodiment, the baseboard management subunit includes: a sub BMC manager and a sub CAN total module;
the sub-BMC manager includes: the system comprises a sub ARM processor, a sub USB _ SIE module, a sub video information caching module, a sub keyboard and mouse message analyzing module, a sub CAN transmission protocol packaging analyzing module, a sub CAN processor and a sub network transmission protocol packaging analyzing module;
the sub-USB _ SIE module, the sub-video information caching module and the sub-keyboard-mouse message analyzing module are respectively connected with the sub-ARM processor, and respectively transmit video information and keyboard input and output information as well as mouse input and output information to the sub-ARM processor, the sub-ARM processor processes the received information and correspondingly feeds back corresponding feedback control instructions to the sub-video information caching module and the sub-keyboard-mouse message analyzing module;
the sub ARM processor is provided with a video connection port and is connected to the video output device through the video connection port;
the sub USB _ SIE module is provided with a USB bus connecting port, and the USB bus connecting port is connected with a USB bus of the BMC management framework;
the sub-network transmission protocol encapsulation and analysis module is connected with the network connection subunit, interacts data information with the network connection subunit, and analyzes the interacted data information;
the sub CAN transmission protocol encapsulation and analysis module is connected with the sub network transmission protocol encapsulation and analysis module, and is used for further encapsulating and analyzing the data information acquired and analyzed by the sub network transmission protocol encapsulation and analysis module into data information in a CAN transmission protocol form and transmitting the transmitted data information to the sub network transmission protocol encapsulation and analysis module in the CAN transmission protocol form;
the sub CAN processor, the sub video information cache module and the sub keyboard and mouse message analysis module are respectively connected with the sub CAN transmission protocol encapsulation analysis module;
the sub CAN processor is also connected with the sub CAN total module, the sub CAN processor and the sub CAN total module exchange data information, and the sub CAN processor is used for transmitting the data information acquired from the sub CAN transmission protocol encapsulation analysis module to the sub CAN total module and transmitting the data information acquired from the sub CAN total module to the sub CAN transmission protocol encapsulation analysis module;
and the sub video information cache module and the sub keyboard and mouse message analysis module respectively interact data information with the sub CAN transmission protocol encapsulation analysis module.
The sub-CAN total module comprises: a sub CAN controller, a first sub CAN transceiver, a second sub CAN transceiver; the first end of the first sub CAN transceiver and the first end of the second sub CAN transceiver are respectively connected with the sub CAN controllers, and the first sub CAN transceiver and the second sub CAN transceiver are respectively in data interaction with the sub CAN controllers; the sub CAN controller is connected with the sub CAN processor, and the sub CAN controller and the sub CAN processor perform data interaction; and the second ends of the first sub CAN transceivers and the second sub CAN transceivers are respectively connected with the network connection subunit, and the first sub CAN transceivers and the second sub CAN transceivers are respectively subjected to data interaction with the network connection subunit.
In this embodiment, the network connection subunit includes: a first high-speed bus 5, a first low-speed bus 7, a second high-speed bus 6, a second low-speed bus 8, a first resistor 11, a second resistor 12, a third resistor 13, and a fourth resistor 14;
a first end of the first high-speed bus 5 is connected with a first end of a first resistor 11, and a second end of the first high-speed bus 5 is connected with a first end of a second resistor 12; a first end of the first low-speed bus 7 is connected with a second end of the first resistor 11, and a second end of the first low-speed bus 7 is connected with a second end of the second resistor 12; a first end of the second high-speed bus 6 is connected with a first end of the third resistor 13, and a second end of the second high-speed bus 6 is connected with a first end of the fourth resistor 14; a first end of the second low-speed bus 8 is connected with a second end of the third resistor 13, and a second end of the second low-speed bus 8 is connected with a second end of the fourth resistor 14;
the main network transmission protocol encapsulation analysis module of the base plate management main unit is respectively connected with the first high-speed bus and the first low-speed bus, and the main network transmission protocol encapsulation analysis module of the base plate management main unit is respectively interacted with the first high-speed bus and the first low-speed bus in information; the first main CAN transceiver of the baseboard management main unit is connected with the second high-speed bus, and the first main CAN transceiver of the baseboard management main unit is in information interaction with the second high-speed bus; and the second main CAN transceiver of the baseboard management main unit is connected with the second low-speed bus, and the second main CAN transceiver of the baseboard management main unit is in information interaction with the second low-speed bus.
In this embodiment, the remote management platform includes: the system comprises a substrate management main unit numbering module, a substrate management sub-unit numbering module and a numbering information transmission module; the substrate management main unit numbering module is used for numbering the substrate management main units; the substrate management subunit numbering module is used for numbering each substrate management subunit; and the numbering information processing module is used for numbering the data information transmitted remotely and transmitting the data information to the corresponding unit according to the numbering.
In this embodiment, the baseboard management main unit and the baseboard management sub units have a CAN bus, a main network transmission protocol encapsulation analysis module, and a sub-network transmission protocol encapsulation analysis module, which are respectively connected to the CAN bus for transmitting video information and the CAN bus for transmitting mouse and keyboard information. The remote management platform is connected with the baseboard management main unit through a network, and the baseboard management main unit is responsible for forwarding information.
The first high-speed bus and the second high-speed bus are CAN buses for transmitting video information. The first low-speed bus and the second low-speed bus are CAN buses for transmitting mouse and keyboard information.
The main CAN total module and the sub CAN total module are responsible for serial-parallel conversion of CAN bus transmission completion information. And completing the transmission of information such as video, keyboard, mouse, control and the like among the substrate management subunits.
And the baseboard management main unit realizes the control of the server. In the invention, the transmission of video and keyboard and mouse information is mainly realized, and the baseboard management main unit is responsible for network communication with the remote management platform. The CAN coprocessor completes control and information transmission of the CAN controller, the main CAN transmission protocol packaging and analyzing module is responsible for packaging and analyzing CAN bus data transmission, the main network transmission protocol packaging and analyzing module is responsible for sending and receiving data of the remote management platform and completing extraction of corresponding information, the information comprises mouse keyboard and video information, and the keyboard and mouse message analyzing module is responsible for remotely analyzing keyboard and mouse information sent by the remote management system and sending the information to the ARM processor for processing.
The BMC management architecture based on the CAN bus CAN realize the transmission of mouse, keyboard and video information, the transmission of the keyboard and mouse information is commonly called as downlink transmission, and the transmission of the video information is commonly called as uplink transmission.
The downlink transmission work flow is as follows: the remote management platform accesses the IP of the baseboard management main unit and selects the number of the baseboard management sub-unit, the number of the number supported by the invention is 32, wherein the number of the baseboard management main unit is 0, and the other numbers are 1-31. The ID of the CAN standard data frame is higher by 5 bits to identify the serial number of each BC module, the serial number ID corresponding to each CAN device is 0-31 respectively, and keyboard and mouse information CAN be transmitted when the communication between the baseboard management main unit and the remote management platform is established.
The base plate management main unit receives the control information sent by the management system and transmits data information according to the serial number, if the base plate management main unit is the base plate management main unit, the control information is directly transmitted to the main ARM processor, the main ARM processor is respectively converted into messages of a keyboard or a mouse according to the received control information and sends the messages to the USB interface, and the corresponding server receives the corresponding information and completes data communication transmission.
If the data communication transmission is completed, the corresponding server receives the corresponding information and transmits the data communication transmission.
The keyboard and mouse information messages are divided into two types: control messages and data messages, a data frame of a CAN bus may contain up to 8 bytes of data, so the length of a data message is 8 bytes. The control message format is as follows:
Figure BDA0001401518700000111
wherein, Class is message type 00: representing a configuration message. DNID: indicating which BC module was selected. The selection range is 0-31. Ecc is a check bit. RESERVE is a reserved bit. The keyboard and mouse information message format is as follows:
Figure BDA0001401518700000112
wherein, Class is message type 01: representing a keyboard; and 10 denotes a mouse.
Message is Message type: the specific peripheral operation type is shown, and the message type shows different meanings according to different classes. For example, 0001 represents a space key under the keyboard message and a left mouse key under the mouse message. Ecc is a check bit.
DATA0,1 represents DATA carried by a message. Under the mouse type, coordinate parameters are represented. Under the keyboard message, various key combinations are represented. RESERVE is a reserved bit.
The transmission of video information is generally referred to as uplink transmission work flow as follows:
and the accessed server baseboard management unit receives the video information by an ARM processor comprising a baseboard management main unit and a baseboard management sub-unit, and if the accessed unit is the baseboard management main unit, the baseboard management main unit directly acquires the information.
If the accessed baseboard management subunit is the baseboard management subunit, the video information is sent to the baseboard management main unit through the high-speed bus, and the baseboard management main unit receives the CAN bus information, converts the CAN bus information into network information and sends the network information to the management system.
The uplink message only contains one type of data message, as follows:
Figure BDA0001401518700000113
wherein, Class is message type 11: representing an upstream data message.
STATE is the transport STATE: where 00 indicates the start of sending upstream data, 01 indicates the complete 6 bytes of data, and 11 indicates the end of the transmission.
DATA represents DATA carried by the message. At STATE 00,01, DATA represents all 6 bytes of DATA; in the 11 state, DATA [7:0] indicates the number of bytes carried by the message, up to 5 bytes.
RESERVE is a reserved bit. Ecc is a check bit.
The BMC management architecture based on the CAN bus solves the problem that in the existing remote management system based on the BMC chip, the remote management of a large number of servers CAN be supported only by adding extra equipment, and has good expansibility; and remote access to a plurality of servers can be realized only by accessing the IP address of the baseboard management main unit and additionally adding a plurality of baseboard management sub-units.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A BMC management architecture based on CAN bus, comprising: the system comprises a remote management platform and a server substrate management unit in communication connection with the remote management platform;
the server board management unit includes: the system comprises a baseboard management main unit, a plurality of baseboard management subunits and a network connection subunit;
the substrate management main unit and the plurality of substrate management sub-units are respectively interconnected through the network connection sub-units;
the remote management platform is in communication connection with the substrate management main unit and is remotely connected to a server provided with a substrate management subunit, the remote management platform inputs an IP address of the substrate management subunit through a browser to open a management interface of the substrate management subunit, monitors the health condition of the server, checks the health condition of a processor, a power supply and a fan, acquires voltage, fan rotating speed and temperature data information, knows the working condition of each server in time and estimates risks;
the baseboard management main unit includes: a main BMC manager and a main CAN total module;
the master BMC manager includes: the device comprises a main ARM processor, a main USB _ SIE module, a main video information caching module, a main keyboard mouse message analysis module, a main CAN transmission protocol encapsulation analysis module, a main CAN processor and a main network transmission protocol encapsulation analysis module;
the main USB _ SIE module, the main video information caching module and the main keyboard and mouse message analyzing module are respectively connected with the main ARM processor, and respectively transmit video information and keyboard input and output information as well as mouse input and output information to the main ARM processor, the main ARM processor processes the received information and correspondingly feeds back corresponding feedback control instructions to the main video information caching module and the main keyboard and mouse message analyzing module;
the main ARM processor is provided with a video connection port and is connected to the video output device through the video connection port;
the main USB _ SIE module is provided with a USB bus connecting port, and the USB bus connecting port is connected with a USB bus of the BMC management framework;
the main network transmission protocol encapsulation and analysis module is connected with the network connection subunit, the main network transmission protocol encapsulation and analysis module interacts data information with the network connection subunit, and the main network transmission protocol encapsulation and analysis module analyzes the interacted data information;
the main CAN transmission protocol encapsulation and analysis module is connected with the main network transmission protocol encapsulation and analysis module, and is used for further encapsulating and analyzing the data information acquired and analyzed by the main network transmission protocol encapsulation and analysis module into data information in a CAN transmission protocol form and transmitting the transmitted data information to the main network transmission protocol encapsulation and analysis module in the CAN transmission protocol form;
the main CAN processor, the main video information cache module and the main keyboard and mouse message analysis module are respectively connected with the main CAN transmission protocol encapsulation analysis module;
the main CAN processor is also connected with the main CAN general module, the main CAN processor and the main CAN general module exchange data information, and the main CAN processor is used for transmitting the data information acquired from the main CAN transmission protocol encapsulation analysis module to the main CAN general module and transmitting the data information acquired from the main CAN general module to the main CAN transmission protocol encapsulation analysis module;
the main video information cache module and the main keyboard and mouse message analysis module respectively interact data information with the main CAN transmission protocol encapsulation analysis module.
2. The CAN-bus based BMC management architecture of claim 1,
the master CAN bus module comprises: a master CAN controller, a first master CAN transceiver, a second master CAN transceiver;
the first end of the first master CAN transceiver and the first end of the second master CAN transceiver are respectively connected with the master CAN controller, and the first master CAN transceiver and the second master CAN transceiver are respectively in data interaction with the master CAN controller;
the main CAN controller is connected with the main CAN processor, and the main CAN controller and the main CAN processor perform data interaction;
and the second end of the first master CAN transceiver and the second end of the second master CAN transceiver are respectively connected with the network connection subunit, and the first master CAN transceiver and the second master CAN transceiver are respectively subjected to data interaction with the network connection subunit.
3. The CAN-bus based BMC management architecture of claim 1,
the baseboard management subunit includes: a sub BMC manager and a sub CAN total module;
the sub-BMC manager includes: the system comprises a sub ARM processor, a sub USB _ SIE module, a sub video information caching module, a sub keyboard and mouse message analyzing module, a sub CAN transmission protocol packaging analyzing module, a sub CAN processor and a sub network transmission protocol packaging analyzing module;
the sub-USB _ SIE module, the sub-video information caching module and the sub-keyboard-mouse message analyzing module are respectively connected with the sub-ARM processor, and respectively transmit video information and keyboard input and output information as well as mouse input and output information to the sub-ARM processor, the sub-ARM processor processes the received information and correspondingly feeds back corresponding feedback control instructions to the sub-video information caching module and the sub-keyboard-mouse message analyzing module;
the sub ARM processor is provided with a video connection port and is connected to the video output device through the video connection port;
the sub USB _ SIE module is provided with a USB bus connecting port, and the USB bus connecting port is connected with a USB bus of the BMC management framework;
the sub-network transmission protocol encapsulation and analysis module is connected with the network connection subunit, interacts data information with the network connection subunit, and analyzes the interacted data information;
the sub CAN transmission protocol encapsulation and analysis module is connected with the sub network transmission protocol encapsulation and analysis module, and is used for further encapsulating and analyzing the data information acquired and analyzed by the sub network transmission protocol encapsulation and analysis module into data information in a CAN transmission protocol form and transmitting the transmitted data information to the sub network transmission protocol encapsulation and analysis module in the CAN transmission protocol form;
the sub CAN processor, the sub video information cache module and the sub keyboard and mouse message analysis module are respectively connected with the sub CAN transmission protocol encapsulation analysis module;
the sub CAN processor is also connected with the sub CAN total module, the sub CAN processor and the sub CAN total module exchange data information, and the sub CAN processor is used for transmitting the data information acquired from the sub CAN transmission protocol encapsulation analysis module to the sub CAN total module and transmitting the data information acquired from the sub CAN total module to the sub CAN transmission protocol encapsulation analysis module;
and the sub video information cache module and the sub keyboard and mouse message analysis module respectively interact data information with the sub CAN transmission protocol encapsulation analysis module.
4. The CAN-bus based BMC management architecture of claim 3,
the sub-CAN total module comprises: a sub CAN controller, a first sub CAN transceiver, a second sub CAN transceiver;
the first end of the first sub CAN transceiver and the first end of the second sub CAN transceiver are respectively connected with the sub CAN controllers, and the first sub CAN transceiver and the second sub CAN transceiver are respectively in data interaction with the sub CAN controllers;
the sub CAN controller is connected with the sub CAN processor, and the sub CAN controller and the sub CAN processor perform data interaction;
and the second ends of the first sub CAN transceivers and the second sub CAN transceivers are respectively connected with the network connection subunit, and the first sub CAN transceivers and the second sub CAN transceivers are respectively subjected to data interaction with the network connection subunit.
5. The CAN-bus based BMC management architecture of claim 3,
the network connection subunit includes: the circuit comprises a first high-speed bus, a first low-speed bus, a second high-speed bus, a second low-speed bus, a first resistor, a second resistor, a third resistor and a fourth resistor;
the first end of the first high-speed bus is connected with the first end of the first resistor, and the second end of the first high-speed bus is connected with the first end of the second resistor;
the first end of the first low-speed bus is connected with the second end of the first resistor, and the second end of the first low-speed bus is connected with the second end of the second resistor;
the first end of the second high-speed bus is connected with the first end of the third resistor, and the second end of the second high-speed bus is connected with the first end of the fourth resistor;
the first end of the second low-speed bus is connected with the second end of the third resistor, and the second end of the second low-speed bus is connected with the second end of the fourth resistor;
the main network transmission protocol encapsulation analysis module of the base plate management main unit is respectively connected with the first high-speed bus and the first low-speed bus, and the main network transmission protocol encapsulation analysis module of the base plate management main unit is respectively interacted with the first high-speed bus and the first low-speed bus in information;
the first main CAN transceiver of the baseboard management main unit is connected with the second high-speed bus, and the first main CAN transceiver of the baseboard management main unit is in information interaction with the second high-speed bus;
and the second main CAN transceiver of the baseboard management main unit is connected with the second low-speed bus, and the second main CAN transceiver of the baseboard management main unit is in information interaction with the second low-speed bus.
6. The CAN-bus based BMC management architecture of claim 5,
the remote management platform comprises: the system comprises a substrate management main unit numbering module, a substrate management sub-unit numbering module and a numbering information transmission module;
the substrate management main unit numbering module is used for numbering the substrate management main units; the substrate management subunit numbering module is used for numbering each substrate management subunit;
and the numbering information processing module is used for numbering the data information transmitted remotely and transmitting the data information to the corresponding unit according to the numbering.
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