CN115426237A - Method for realizing KVM function based on IPMI, BMC and storage medium - Google Patents

Method for realizing KVM function based on IPMI, BMC and storage medium Download PDF

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Publication number
CN115426237A
CN115426237A CN202210905786.6A CN202210905786A CN115426237A CN 115426237 A CN115426237 A CN 115426237A CN 202210905786 A CN202210905786 A CN 202210905786A CN 115426237 A CN115426237 A CN 115426237A
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China
Prior art keywords
bmc
target node
usb
switching
node
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CN202210905786.6A
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Chinese (zh)
Inventor
陈炫任
黄瑱
李宁
莫良伟
邓伟松
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Baode Network Security System Shenzhen Co ltd
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Baode Network Security System Shenzhen Co ltd
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Priority to CN202210905786.6A priority Critical patent/CN115426237A/en
Publication of CN115426237A publication Critical patent/CN115426237A/en
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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
    • H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0026—PCI express
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0042—Universal serial bus [USB]

Abstract

The embodiment of the application discloses a method for realizing a KVM function based on IPMI, BMC and a storage medium, which are used for flexibly providing KVM function service for a multi-node server and improving user experience. The method in the embodiment of the application comprises the following steps: a baseboard management controller BMC acquires an out-of-band management IP of each node in a multi-node server, wherein each node is configured with an intelligent platform management interface IPMI function; the BMC determines a target node needing keyboard, video or mouse KVM functions from the nodes through the out-of-band management IP, wherein the target node is any one server node in the nodes; and the BMC switches the signal output by the KVM equipment to the target node, and a physical connection channel is established between the KVM equipment and the target node.

Description

Method for realizing KVM function based on IPMI, BMC and storage medium
Technical Field
The embodiment of the application relates to the technical field of out-of-band management, in particular to a method for realizing a KVM function based on IPMI, BMC and a storage medium.
Background
KVM, an abbreviation for Keyboard Video Mouse, can access and control a computer by directly connecting to a Keyboard, video or Mouse port. KVM technology does not require the target server to modify the software. This means that the target computer can be accessed at any time in the BIOS environment. A Baseboard Management Controller (BMC) may perform operations such as upgrading firmware of a machine, checking equipment of the machine, and the like in a state where the machine is not powered on.
In a multi-node server, because a plurality of nodes exist, and at the same time, the BMC has only one high-speed serial computer extended bus (PCIE) bus, the BMC can only provide KVM function service for one node, which is not flexible enough.
Disclosure of Invention
The embodiment of the application provides a method for realizing a KVM function based on IPMI, a BMC and a storage medium, which can flexibly provide KVM function service for a multi-node server and can improve user experience.
A first aspect of an embodiment of the present application provides a method for implementing a KVM function based on IPMI, including:
the method comprises the steps that BMC obtains an out-of-band Management IP of each node in a multi-node server, and each node is provided with an Intelligent Platform Management Interface (IPMI) function;
the BMC determines a target node needing a KVM function from each node through the out-of-band management IP, wherein the target node is any one server node in each node;
and the BMC switches the signal output by the KVM equipment to the target node, and a physical connection channel is established between the KVM equipment and the target node.
Optionally, the switching, by the controller, the local KVM device output signal to the target node includes:
the BMC switches the PCIE signal output by the BMC to the target node, a PCIE physical connection channel is established between the BMC and the target node, and the first switching chip is used for switching the PCIE output signal of the equipment;
the BMC switches a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node, a USB physical connection channel is established between the USB keyboard and the target node, and a USB physical connection channel is established between the USB mouse and the target node.
Optionally, the switching, by the BMC, the PCIE signal output by the BMC to the target node includes:
the BMC switches the PCIE signal output by the BMC to the target node through a first switching chip, and the first switching chip is used for switching the PCIE signal of the equipment;
the BMC switching a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node comprises:
the BMC switches a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node through a second switching chip, and the second switching chip is used for switching a USB signal of equipment.
Optionally, after the BMC switches the PCIE signal output by itself to the target node, the method further includes:
and the BMC diagnoses the GPU of the target node through a PCIE signal of the BMC.
Optionally, after the BMC diagnoses the GPU of the target node through its PCIE signal, the method further includes:
and when the GPU is damaged, the BMC processes a graphic processing task for the target node through a PCIE signal of the BMC.
A second aspect of the embodiments of the present application provides a BMC, including:
the system comprises an acquisition unit, a management unit and a management unit, wherein the acquisition unit is used for acquiring an out-of-band management IP of each node in a multi-node server, and each node is configured with an IPMI function;
a determining unit, configured to determine, from the nodes through the out-of-band management IP, a target node that requires a KVM function;
and the switching unit is used for switching the signal output by the KVM equipment to the target node, and a physical connection channel is established between the KVM equipment and the target node.
Optionally, the switching unit includes:
the first switching module is used for switching the PCIE signal output by the BMC to the target node, a PCIE physical connection channel is established between the BMC and the target node, and the first switching chip is used for switching the PCIE output signal of the equipment;
and the second switching module is used for switching a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node, a USB physical connection channel is established between the USB keyboard and the target node, and a USB physical connection channel is established between the USB mouse and the target node.
Optionally, the first switching module is specifically configured to:
switching the PCIE signal output by the BMC to the target node through a first switching chip, wherein the first switching chip is used for switching the PCIE signal of the equipment;
the second switching module is specifically configured to: and switching a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node through a second switching chip, wherein the second switching chip is used for switching the USB signal of the equipment.
Optionally, the BMC further includes:
and the diagnosis unit is used for diagnosing the GPU of the target node through the PCIE signal of the diagnosis unit.
Optionally, the BMC further includes:
and the providing unit is used for processing the graphic processing task for the target node through a PCIE signal of the providing unit when the GPU is damaged.
A third aspect of the embodiments of the present application provides a computer-readable storage medium, where a program is stored on the computer-readable storage medium, and when the program is executed on a computer, the computer is caused to execute the method described in any one of the possible implementation manners of the first aspect and the first aspect.
According to the technical scheme, the embodiment of the application has the following advantages:
according to the method for implementing the KVM function based on IPMI provided in the embodiment of the present application, after the target node is determined, since the KVM device and the target node establish the physical connection channel, the BMC may switch the signal output by the KVM device to the target node, so as to provide the KVM function service for the target node. The target node is any one of the nodes in the multi-node server, so that the BMC can flexibly provide KVM functional service for the multi-node server, a user only needs to complete the KVM functional service for any node through the BMC, the user cannot go to a machine room to insert related KVM equipment, great convenience is provided for the user, and user experience is improved.
Drawings
FIG. 1 is a flowchart illustrating an embodiment of a method for implementing KVM functionality based on IPMI according to the present invention;
FIG. 2 is a flowchart illustrating another embodiment of a method for implementing a KVM function based on IPMI according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of BMC in the subject application;
fig. 4 is a schematic structural diagram of another embodiment of the BMC in the embodiment of the present application.
Detailed Description
The embodiment of the application provides a method for realizing a KVM function based on IPMI, a BMC and a storage medium, which are used for flexibly providing KVM function service for a multi-node server and improving user experience.
Embodiments in the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of a method for implementing a KVM function based on IPMI in the embodiment of the present application includes:
101. the BMC acquires an out-of-band management IP of each node in the multi-node server;
in practical application, IPMI connection is established between the BMC and each node in the multi-node server, and each node has a unique out-of-band management IP. If one wants to provide KVM function service for a certain node, the BMC needs to know the out-of-band management IP of the node, so the BMC acquires the out-of-band management IP of each node in the multi-node server.
102. The BMC determines a target node needing a KVM function from each node through an out-of-band management IP;
after acquiring the out-of-band management IP of each node, because the BMC can only provide KVM function service for one node at a time, the BMC may determine one out-of-band management IP according to the acquired out-of-band management IP of each node, and a node corresponding to the out-of-band management IP is a target node.
It should be noted that the manner of determining the target node may include multiple manners, for example, a user selects an out-of-band management IP from all out-of-band management IPs randomly acquired from the BMC, and a node corresponding to the out-of-band management IP is the target node; for example, the user has preselected and determined an out-of-band management IP, and inputs the out-of-band management IP in a management interface of the BMC, and the BMC determines a corresponding target node according to the input information of the user. In the present embodiment, this is not limited.
103. The BMC switches the signal output by the KVM equipment to the target node.
Since the KVM device and the target node establish a physical connection channel, the BMC may switch the signal of the KVM device to the target node through the physical connection channel, thereby providing the KVM function service for the target node. In this embodiment, the KVM device includes a mouse, a keyboard, a graphics card, and the like, which is not limited herein, because the BMC includes an integrated graphics card, and the BMC also belongs to the KVM device. In this embodiment, the physical connection channel includes a network cable, a USB cable, a PCIE cable, and the like, which is not limited herein. It should be noted that, because the BMC and each node are in a one-to-many relationship, in order to implement that the BMC and each node have a physical connection channel for communication, the physical connection channel led out from the BMC end needs to be connected with one or more one-to-many bridges in sequence, and is finally connected to each node. However, these physical connection channels do not all have the signal transmission of the KVM device, and at the same time, only the physical connection channel between the BMC and the target node has the signal transmission, and the other physical connection channels do not. When the target node changes, the physical connection channel on which the signal is transmitted also changes.
In this embodiment, the BMC first obtains the out-of-band management IP of each node in the multi-node server, and then determines the target node that needs the KVM function through the out-of-band management IP. The target node is any one server node among the nodes, so that the BMC can flexibly provide KVM functional service for the multi-node server, a user only needs to complete the KVM functional service for any node through the BMC, the user cannot go to a computer room to insert related KVM equipment, and great convenience is provided for the user.
Referring to fig. 2, another embodiment of the method for implementing a KVM function based on IPMI in the embodiment of the present application includes:
201. the BMC acquires an out-of-band management IP of each node in the multi-node server;
202. the BMC determines a target node needing the KVM function from each node through an out-of-band management IP;
in this embodiment, steps 201 to 202 are similar to steps 101 to 102 in the previous embodiment, and are not described again.
203. The BMC switches the PCIE signal output by the BMC to a target node through a first switching chip;
under normal conditions, the PCIE signal output by the BMC itself can only provide service for the local node, and if the target node is to be provided with the PCIE signal, the PCIE output by the BMC needs to be switched. Therefore, the BMC switches the PCIE signal output by the BMC to the PCIE interface that is physically connected to the target node through the first switching chip, and transmits the PCIE signal to the target node from the PCIE interface through the physical connection channel, thereby providing the PCIE signal to the target node. It should be noted that the first switching chip is a chip capable of switching channels for PCIE signals, for example, PEX88000 PCIE Switch series chips, and the like, and the specific details are not limited herein. It should be noted that since the PCIE signal is switched from the BMC, which is equivalent to a GPU using the BMC as a target node, the target node needs to support PCIE hot plug.
204. The BMC switches a first USB signal output by the USB keyboard and/or a second USB signal output by the USB mouse to a target node through a second switching chip;
in general, the USB signals output by the USB keyboard or the USB mouse connected to the BMC can only provide services for the native device, and if the target node is to be provided with the USB signals, the USB signals output by the USB keyboard or the USB mouse need to be switched. Therefore, the BMC switches the first USB signal output by the USB keyboard connected to the host where the BMC is located and/or the second USB signal output by the USB mouse connected to the host to the USB interface connected to the target node through the second switching chip (it should be noted that the first USB signal and the second USB signal cannot multiplex one interface, so the second switching chip switches to two different USB interfaces, respectively), and transmits the signals to the target node through the physical connection channel from the USB interface, thereby providing the first USB signal and/or the second USB signal for the target node. It should be noted that the second switching chip is a chip capable of switching channels for USB signals, such as a VL163 QFN28 USB series chip, and the like, which is not limited herein. It should be noted that, since the USB signal is switched from the USB keyboard connected to the host where the BMC is located and/or the USB mouse connected to the host where the BMC is located, which is equivalent to the keyboard and/or the mouse using the USB keyboard and/or the USB mouse as the target node, the target node needs to support USB hot plug.
205. The BMC diagnoses the GPU of the target node through the PCIE signal of the BMC;
after the BMC switches the PCIE signal of itself to the target node through the first switching chip, the PCIE signal may be used to diagnose whether the GPU of the target node is normal. Specifically, the PCIE signal of the BMC and the PCIE signal of the GPU of the target node may be used alternately, and if the target node can normally operate when the PCIE signal of the BMC is used and the target node cannot normally operate when the PCIE signal of the GPU of the target node is used, it may be determined that the GPU of the target node has a failure.
In this embodiment, the BMC may diagnose the GPU of the target node through its own PCIE signal, and does not need the user to enter a machine room for field diagnosis, thereby improving the diagnosis efficiency and improving the user experience.
206. When the GPU is damaged, the BMC processes the graphic processing task for the target node through the PCIE signal of the BMC.
In this embodiment, if the GPU of the target node is damaged, since the BMC has switched the PCIE signal of itself to the target node through the first switching chip, the BMC may temporarily process the graphics processing task for the target node through the PCIE signal of itself at this time. At this point, the user may be notified to repair or replace the GPU of the target node as soon as possible.
In this embodiment, the BMC can temporarily process the graphics processing task of the target node, so that the graphics processing task of the target node can be processed before the GPU of the target node is repaired or replaced, and the graphics processing task does not need to be interrupted, thereby improving efficiency.
Referring to fig. 3, an embodiment of BMC in the embodiment of the present application includes:
an obtaining unit 301, configured to obtain an out-of-band management IP of each node in a multi-node server, where each node has an IPMI function;
a determining unit 302, configured to determine, from each node, a target node that needs a KVM function through an out-of-band management IP;
the switching unit 303 is configured to switch the signal output by the KVM device to a target node, where the KVM device and the target node establish a physical connection channel.
In this embodiment, the obtaining unit 301 first obtains out-of-band management IPs of each node in the multi-node server, and the determining unit 302 determines a target node requiring a KVM function through the out-of-band management IPs, and since the KVM device and the target node establish a physical connection channel, the switching unit 303 may switch a signal output by the KVM device to the target node, so as to provide a KVM function service for the target node. The target node is any one server node among the nodes, so that the BMC can flexibly provide KVM functional service for the multi-node server, and a user only needs to complete the KVM functional service for any node through the BMC and cannot go to a computer room to insert related KVM equipment, thereby providing great convenience for the user.
Referring to fig. 4, another embodiment of the BMC in the embodiment of the present application includes:
an obtaining unit 401, configured to obtain an out-of-band management IP of each node in a multi-node server, where each node in the multi-node server has been configured with an IPMI function;
a determining unit 402, configured to determine a target node requiring a KVM function from each node through an out-of-band management IP;
the switching unit 403 is configured to switch the signal output by the KVM device to a target node, where the KVM device and the target node establish a physical connection channel.
In this embodiment, the switching unit 403 may include a first switching module 4031 and a second switching module 4032.
The first switching module 4031 is configured to switch a PCIE signal output by the BMC to a target node through a first switching chip, where the first switching chip is used to switch a PCIE signal of the device, and the first switching chip is used to switch a PCIE output signal of the device;
a second switching module 4032, configured to switch, through a second switching chip, a first USB signal output by the USB keyboard and/or a second USB signal output by the USB mouse to the target node, where the second switching chip is configured to switch a USB signal of the device, a USB physical connection channel is established between the USB keyboard and the target node, and a USB physical connection channel is established between the USB mouse and the target node.
In this embodiment, the BMC may further include a diagnosis module 404 and a processing module 405.
The diagnosis module 404 is configured to diagnose the GPU of the target node through the PCIE signal of the BMC.
The processing module 405 is configured to process a graphics processing task for a target node through a PCIE signal of the BMC when the GPU is damaged.
In this implementation, the functions of each unit and each module correspond to the steps in the embodiment shown in fig. 2, and are not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, which are essential or part of the technical solutions contributing to the prior art, or all or part of the technical solutions, may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Claims (10)

1. A method for realizing KVM function based on IPMI is characterized by comprising the following steps:
a baseboard management controller BMC obtains an out-of-band management IP of each node in a multi-node server, wherein each node is configured with an intelligent platform management interface IPMI function;
the BMC determines a target node needing a keyboard, video or mouse KVM function from each node through the out-of-band management IP, wherein the target node is any one of the nodes;
and the BMC switches the signal output by the KVM equipment to the target node, and a physical connection channel is established between the KVM equipment and the target node.
2. The method of claim 1, wherein the controlling engine switching a local KVM device output signal to the target node comprises:
the BMC switches the PCIE signal output by the BMC to the target node, a PCIE physical connection channel is established between the BMC and the target node, and the first switching chip is used for switching the PCIE output signal of the equipment;
the BMC switches a first USB signal output by a Universal Serial Bus (USB) keyboard and/or a second USB signal output by a USB mouse to the target node, a USB physical connection channel is established between the USB keyboard and the target node, and a USB physical connection channel is established between the USB mouse and the target node.
3. The method of claim 2, wherein the BMC switching the PCIE signal output by itself to the target node comprises:
the BMC switches the PCIE signal output by the BMC to the target node through a first switching chip, and the first switching chip is used for switching the PCIE signal of the equipment;
the BMC switching the first USB signal output by the USB keyboard and/or the second USB signal output by the USB mouse to the target node comprises:
and the BMC switches a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node through a second switching chip, and the second switching chip is used for switching the USB signal of the equipment.
4. The method of claim 2, wherein after the BMC switches the PCIE signal output by itself to the target node, the method further comprises:
and the BMC diagnoses the GPU of the target node through the PCIE signal of the BMC.
5. The method of claim 4, wherein after the BMC diagnoses the GPU of the target node via its PCIE signal, the method further comprises:
and when the GPU is damaged, the BMC processes a graphic processing task for the target node through a PCIE signal of the BMC.
6. A BMC, comprising:
the system comprises an acquisition unit, a management unit and a management unit, wherein the acquisition unit is used for acquiring an out-of-band management IP of each node in a multi-node server, and each node is configured with an IPMI function;
a determining unit, configured to determine, from the nodes, a target node that needs a KVM function through the out-of-band management IP;
and the switching unit is used for switching the signal output by the KVM equipment to the target node, and a physical connection channel is established between the KVM equipment and the target node.
7. The BMC of claim 6, wherein the switching unit comprises:
the first switching module is used for switching the PCIE signal output by the BMC to the target node, a PCIE physical connection channel is established between the BMC and the target node, and the first switching chip is used for switching the PCIE output signal of the equipment;
and the second switching module is used for switching a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node, a USB physical connection channel is established between the USB keyboard and the target node, and a USB physical connection channel is established between the USB mouse and the target node.
8. The BMC of claim 7, wherein the first switching module is specifically configured to:
the PCIE signal output by the BMC is switched to the target node through a first switching chip, and the first switching chip is used for switching the PCIE signal of the equipment;
the second switching module is specifically configured to:
and switching a first USB signal output by a USB keyboard and/or a second USB signal output by a USB mouse to the target node through a second switching chip, wherein the second switching chip is used for switching the USB signal of the equipment.
9. The BMC of claim 7, further comprising:
and the diagnosis unit is used for diagnosing the GPU of the target node through the PCIE signal of the BMC.
10. A computer-readable storage medium having a program stored thereon, which when executed on a computer causes the computer to perform the method of any one of claims 1 to 5.
CN202210905786.6A 2022-07-29 2022-07-29 Method for realizing KVM function based on IPMI, BMC and storage medium Pending CN115426237A (en)

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