CN112732504B - Server BMC serial port circuit - Google Patents
Server BMC serial port circuit Download PDFInfo
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- CN112732504B CN112732504B CN202110019491.4A CN202110019491A CN112732504B CN 112732504 B CN112732504 B CN 112732504B CN 202110019491 A CN202110019491 A CN 202110019491A CN 112732504 B CN112732504 B CN 112732504B
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- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 18
- 101100155200 Dictyostelium discoideum ubl5 gene Proteins 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
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- 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
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
-
- 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
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- 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
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- 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]
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Information Transfer Systems (AREA)
- Communication Control (AREA)
Abstract
The invention discloses a server BMC serial port circuit which comprises a hub, wherein a first interface of the hub is connected with an interface of a PCH in a server data network, and a second interface of the hub is connected with a communication interface of a BMC, so that operation and maintenance personnel can remotely manage the BMC and a server through the server data network. Therefore, the server BMC serial port circuit provided by the invention can enable the server data network to establish communication connection with the BMC through the hub, and enables operation and maintenance personnel to remotely manage the BMC and the server through the server data network when the BMC network service is hung up or the BMC system is hung up.
Description
Technical Field
The embodiment of the invention relates to the technical field of computers, in particular to a server BMC serial port circuit.
Background
A BMC (Baseboard Management Controller) is a small operating system independent of a server system, and is used to facilitate remote Management, monitoring, installation, and restart operations of the server, and in general, the BMC may be used to perform remote Management operations on the server through a BMC Management network. However, if the BMC network service is hung up, that is, the management interface of the server is hung up, in this case, the BMC does not need to be restarted, but only the network service process needs to be restarted, and if the entire BMC system is hung up, the BMC needs to be restarted and reset. At present, no matter the BMC network service is hung up or the BMC system is hung up, operation and maintenance personnel cannot remotely manage the server, and the operation and maintenance personnel must enter a machine room to debug the function through a BMC serial port on the server or even restart the BMC, so that great inconvenience is brought to the operation and maintenance personnel, and efficient management of the server is not facilitated.
In view of this, how to provide a server BMC serial port circuit that solves the above technical problems becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention aims to provide a serial port circuit of a BMC of a server, which can enable operation and maintenance personnel to remotely manage the BMC and the server through a server data network in the using process.
In order to solve the technical problem, an embodiment of the present invention provides a serial port circuit for a BMC of a server, including a hub, where a first interface of the hub is connected to an interface of a PCH in a server data network, a second interface of the hub is connected to a communication interface of the BMC, and the hub is configured to receive a BMC bottom layer management signal sent by the PCH and send the BMC bottom layer management signal to the BMC.
Optionally, the hub further comprises a USB connector, and the third interface of the hub is connected to the USB connector; when the concentrator detects that the accessed control terminal exists through the USB Type-c connector, the first interface is controlled to be a downlink interface, and the third interface is controlled to be an uplink interface.
Optionally, when the hub does not detect an accessed control terminal through the USB connector, the hub controls the first interface to be an uplink interface and the third interface to be a downlink interface.
Optionally, the USB connector is a USB Type-c connector.
Optionally, the hub further includes a GPIO interface, and the GPIO interface is connected to a reset pin of the BMC.
Optionally, the hub further comprises a USB to UART chip, and the second interface of the hub is connected to the communication interface of the BMC through the USB to UART chip.
Optionally, the Hub is a USB Hub.
The embodiment of the invention provides a server BMC serial port circuit which comprises a hub, wherein a first interface of the hub is connected with an interface of a PCH in a server data network, a second interface of the hub is connected with a communication interface of a BMC, and the hub is used for receiving a BMC bottom layer management signal sent by the PCH and sending the BMC bottom layer management signal to the BMC so as to manage and operate the BMC bottom layer. Therefore, the server BMC serial port circuit provided by the invention can enable the server data network to establish communication connection with the BMC through the hub, and when the BMC network service is hung up or the BMC system is hung up, operation and maintenance personnel can send a BMC bottom layer management signal to the hub through the PCH in the server data network, and then the hub sends the BMC bottom layer management signal to the BMC, so that remote management of the BMC and the server through the server data network is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, 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 to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a server BMC serial port circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another serial port circuit of the server BMC according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of another serial port circuit for the BMC of the server according to the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a server BMC serial port circuit, which can enable operation and maintenance personnel to remotely manage a BMC and a server through a server data network in the using process.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a server BMC serial port circuit according to an embodiment of the present invention. The server BMC serial port circuit comprises a hub1, wherein a first interface P0 of the hub1 is connected with an interface of a PCH in a server data network, a second interface P2 of the hub is connected with a communication interface of a BMC, and the hub1 is used for receiving a BMC bottom layer management signal sent by the PCH and sending the BMC bottom layer management signal to the BMC.
It should be noted that, in this embodiment, the serial port circuit of the server BMC includes a Hub1 for connecting a PCH (Platform Controller Hub) and a BMC in a server data network, a first interface P0 of the Hub1 may be specifically connected to the PCH interface in the server data network through a USB, and a second interface P2 of the Hub1 is connected to the BMC, so that the server data network may be communicated with the BMC, and an operation and maintenance worker may send a BMC bottom layer management signal to the Hub1 through the PCH in the server data network, and then the Hub1 sends the BMC bottom layer management signal to the BMC, so as to remotely regulate and control the BMC, for example, when a management network of the BMC is hung dead, the operation and maintenance worker may debug the BMC through the server data network (e.g., through a Secure Shell protocol), and specifically may send an operation signal for restarting the management network to the BMC through the PCH and the Hub1, so as to manage the server; or when the BMC is abnormal or even hangs up, an operation and maintenance worker may send a debug signal to the BMC through the PCH and the hub1 in the server data network to perform remote serial port debugging, resetting, and the like on the BMC.
In addition, it should be further noted that the server data network in this embodiment may specifically include a data network, an NIC connected to the data network, a CPU connected to the NIC, and a PCH connected to the CPU, where the server data network is a prior art, and details of this embodiment are not described herein.
Further, the server BMC serial port circuit in this embodiment may further include a USB to UART chip 2, and the second interface P2 of the hub1 is connected to the communication interface of the BMC through the USB to UART chip 2.
That is, the second interface P2 of the Hub1 in this embodiment may be specifically connected to the USB to UART chip 2 through USB, and the USB to UART chip 2 may be specifically connected to the BMC through UART, so as to implement communication between the Hub1 and the BMC, in practical application, the Hub1 may employ a USB Hub (Universal serial bus Hub) 11, please refer to fig. 2 specifically, where the second interface P2 in this embodiment is always connected to the USB to UART chip 2 as a downlink interface.
It should be noted that, in the prior art, when the BMC is hung up, operation and maintenance personnel cannot remotely manage the server, and must enter a machine room to perform function debugging through a BMC serial port on the server, or even restart the BMC, and the BMC serial port in the prior art usually exists in the form of a DB-9 interface, an earphone port, an RJ45 interface, and the like, which not only occupies space, but also needs a special cable to perform BMC serial port debugging, and is very inconvenient to use.
In order to solve the problem, the serial port circuit of the server BMC in this embodiment may further include a USB connector 3, and the third interface P1 of the hub1 is connected to the USB connector 3, so that the operation and maintenance staff can perform field management on the BMC and the server through the control terminal connected to the USB connector 3; when detecting that there is an accessed control terminal through the USB connector 3, the hub1 controls the first interface P0 to be a downlink interface and the third interface P1 to be an uplink interface.
Referring to fig. 3 specifically, the Hub1 in this embodiment may specifically adopt a USB Hub11, the third interface P1 of the USB Hub11 is connected to the USB connector 3, and the USB connector 3 may be connected to an external terminal device, where when the BMC is abnormal or even is hung up, an operation and maintenance worker may not only debug and manage the BMC through the server data network to manage the server, but also may externally connect a control terminal (e.g., a PC terminal) through the USB connector 3 to perform field debugging, and does not need a specific cable, only needs to adopt a USB cable, and the USB connector 3 has a small volume and occupies a small space.
Specifically, when the operation and maintenance personnel need to perform field debugging, that is, when it is detected that the USB connector 3 is connected to the control terminal, the USB Hub11 switches the third interface P1 to the uplink interface and switches the first interface to the downlink interface, and certainly, the second interface P2 of the USB Hub11 is always the downlink interface. Specifically, the USB connector 3 in this embodiment may specifically adopt a USB Type-C connector, and the USB Type-C connector may be shared with a Type-C connector on the server, and when the USB Type-C cable is used to connect the notebook computer and the USB Type-C connector on the server, the USB Hub11 performs uplink and downlink interchange on the first interface P0 and the third interface P1, that is, P0 serves as a downlink interface, and P1 serves as an uplink interface to connect the notebook computer. Certainly, in practical application, in order to prevent the P0 downlink interface from colliding with the PCH downlink interface in the server data network, the P0 interface may also be closed, and at this time, the notebook is used as Host to communicate with the BMC through the USB Hub11 and the USB-to-UART chip 2, so as to perform BMC serial port debugging.
In practical application, a condition that the USB connector 3 is not connected to the control terminal may be taken as a default condition, and the hub1 may control the first interface P0 to be an uplink interface and the third interface P1 to be a downlink port in the default condition, that is, when the hub1 does not detect the accessed control terminal through the USB connector 3, the first interface P0 may be controlled to be the uplink interface and the third interface P1 may be controlled to be the downlink interface, and when the device is not connected or other devices such as a keyboard, a mouse, and a USB disk are connected, the first interface P0 may be the uplink interface and the third interface P1 may be the downlink interface. The hub1 in this embodiment may flexibly configure the first interface P0 and the third interface P1, identify the type of the access device according to the USB connector 3, and perform uplink and downlink switching on the first interface P0 and the third interface P1 according to the identified type.
Further, the HUb1 (specifically, a USB HUb) shown in fig. 3 further includes a GPIO interface, and the GPIO interface is connected to a reset pin of the BMC, so that the operation and maintenance personnel can reset the BMC through the GPIO interface.
Specifically, in the present application, when the BMC is hung up, the operation and maintenance personnel may specifically perform a reset operation on the BMC through the GPIO on the hub1 in the present application.
The server BMC serial port circuit in the embodiment comprises a hub, a first interface of the hub is connected with an interface of a PCH in a server data network, a second interface of the hub is connected with a communication interface of BMC, and the hub is used for receiving a BMC bottom layer management signal sent by the PCH and sending the BMC bottom layer management signal to BMC so as to manage and operate the BMC bottom layer. Therefore, the server BMC serial port circuit provided by the invention can enable the server data network to establish communication connection with the BMC through the hub, and enable operation and maintenance personnel to send a BMC bottom layer management signal to the hub through the PCH in the server data network when the BMC network service is hung up or the BMC system is hung up, and then the hub sends the BMC bottom layer management signal to the BMC, so that remote management of the BMC and the server through the server data network is realized
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 device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
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 (3)
1. A serial port circuit of a server BMC is characterized by comprising a hub, wherein a first interface of the hub is connected with an interface of a PCH in a server data network, a second interface of the hub is connected with a communication interface of the BMC, and the hub is used for receiving a BMC bottom layer management signal sent by the PCH and sending the BMC bottom layer management signal to the BMC; wherein, still include:
a USB connector, to which the third interface of the hub is connected; when the concentrator detects that an accessed control terminal exists through the USB connector, the concentrator controls the first interface to be a downlink interface and controls the third interface to be an uplink interface;
the second interface of the concentrator is connected with the communication interface of the BMC through the USB-to-UART chip;
when the concentrator does not detect the accessed control terminal through the USB connector, the first interface is controlled to be an uplink interface, and the third interface is controlled to be a downlink interface;
the hub further comprises a GPIO interface, and the GPIO interface is connected with a reset pin of the BMC.
2. The server BMC serial port circuit of claim 1, wherein the USB connector is a USB Type-c connector.
3. The server BMC serial port circuit of any of claims 1-2, wherein the Hub is a USB Hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019491.4A CN112732504B (en) | 2021-01-07 | 2021-01-07 | Server BMC serial port circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019491.4A CN112732504B (en) | 2021-01-07 | 2021-01-07 | Server BMC serial port circuit |
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| Publication Number | Publication Date |
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| CN112732504A CN112732504A (en) | 2021-04-30 |
| CN112732504B true CN112732504B (en) | 2023-01-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021060A (en) * | 2013-02-28 | 2014-09-03 | 鸿富锦精密工业（深圳）有限公司 | BMC serial port debugging system and method |
| CN107797960A (en) * | 2017-11-03 | 2018-03-13 | 山东超越数控电子股份有限公司 | A kind of server architecture of multiprocessor |
| CN109117409A (en) * | 2018-07-26 | 2019-01-01 | 浪潮(北京)电子信息产业有限公司 | The device that a kind of server and its serial ports based on BMC redirect |
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2021
- 2021-01-07 CN CN202110019491.4A patent/CN112732504B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021060A (en) * | 2013-02-28 | 2014-09-03 | 鸿富锦精密工业（深圳）有限公司 | BMC serial port debugging system and method |
| CN107797960A (en) * | 2017-11-03 | 2018-03-13 | 山东超越数控电子股份有限公司 | A kind of server architecture of multiprocessor |
| CN109117409A (en) * | 2018-07-26 | 2019-01-01 | 浪潮(北京)电子信息产业有限公司 | The device that a kind of server and its serial ports based on BMC redirect |
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| CN112732504A (en) | 2021-04-30 |
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