CN113867787A - Switching system and method between server network cards - Google Patents
Switching system and method between server network cards Download PDFInfo
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- CN113867787A CN113867787A CN202110933973.0A CN202110933973A CN113867787A CN 113867787 A CN113867787 A CN 113867787A CN 202110933973 A CN202110933973 A CN 202110933973A CN 113867787 A CN113867787 A CN 113867787A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/22—Microcontrol or microprogram arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4416—Network booting; Remote initial program loading [RIPL]
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- 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
- H04L41/08—Configuration management of networks or network elements
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Abstract
The invention has proposed switching system and method between a server network card, this system includes the base plate management controller, platform control center, first network card, second network card and micro-control unit set up between base plate management controller and first network card; the platform control center is connected with the second network card; the micro control unit is used for judging whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card. The invention also provides a switching method between the network cards of the server, wherein the first network card is a BMC (baseboard management controller) special network card, the second network card is a host special network card, and the switching method is based on a switching system between the network cards of the server.
Description
Technical Field
The invention belongs to the technical field of server network card switching, and particularly relates to a system and a method for switching between server network cards.
Background
The server network card can be divided into a BMC (baseboard management controller) special network card, a Host special network card and a BMC and Host shared network card according to the system, the Host special network card is a small-sized operating system independent of the server system, the baseboard management controller is convenient for remote management, monitoring, deployment, restarting and other operations of the server, the baseboard management controller is connected with the starting operation of a power supply, is not influenced by the on-off of the server and is independent of the system. In the development process of the server, different configurations in the same series are generally available, such as a mounted baseboard management controller and an unmounted baseboard management controller. When the configuration of the baseboard management controller is not carried, the special network card can only be used as the special network card of the baseboard management controller system for the control problem of the special network card of the baseboard management controller. Under the condition that the baseboard management controller is not in place, due to the reason of physical link setting, the utilization rate of the server system to the special network card of the baseboard management controller is 0, and therefore hardware equipment is not idle. If the whole mainboard architecture and circuit design are changed according to the in-place configuration of the baseboard management controller, the negative feedback effect on the development work of the server is greatly achieved.
As shown in fig. 1, an architectural relationship diagram of a baseboard management controller and a baseboard management controller dedicated network card in the prior art is given, and when the baseboard management controller is not in place, due to a physical link setting reason, a utilization rate of a server system for the baseboard management controller dedicated network card is 0, so that a hardware device is not idle. If the whole mainboard architecture and circuit design are changed according to the in-place configuration of the baseboard management controller, the negative feedback effect on the development work of the server is greatly achieved. And the hardware change restriction requirement is harsh, and the operation is complicated.
Disclosure of Invention
In order to solve the technical problem, the system and the method for switching the network cards of the server have extremely convenient utilization for the design of the redundant network cards generated under different configurations, and are convenient for the switching management of the specific network cards of the server.
In order to achieve the purpose, the invention adopts the following technical scheme:
a switching system between server network cards comprises a substrate management controller, a platform control center, a first network card, a second network card and a micro control unit arranged between the substrate management controller and the first network card; the platform control center is connected with the second network card;
the micro control unit is used for judging whether the substrate management controller is in place or not through GPIO signals; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
Further, the switching system further comprises an input and output system;
the input and output system is used for acquiring whether the substrate management controller is in place or not and sending the substrate management controller to the micro control unit through a GPIO (general purpose input/output) signal; and when the baseboard management controller selects the first network card, configuring a first network card driver, and when the platform control center selects the second network card, configuring a second network card driver.
Further, the first network card is a network card special for a baseboard management controller; the second network card is a host special network card.
Further, the switching system further comprises a third network card; and the third network card is positioned between the substrate management controller and the platform control center.
Further, the third network card is a shared network card.
Further, if the third network card needs to be switched, the input and output system stops driving the third network card; the micro control unit judges whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
A switching method between server network cards is realized based on a switching system between the server network cards, and comprises the following steps:
receiving a GPIO signal for judging whether the substrate management controller is in place;
judging whether the substrate management controller is in place or not according to the level of the GPIO signal, and controlling the substrate management controller to select a first network card if the substrate management controller is in place; and if the baseboard management controller is not in place, the control platform control center selects a second network card.
Further, whether the substrate management controller is in place is judged according to the level of the GPIO signal, and if the substrate management controller is in place, the substrate management controller is controlled to select the first network card; if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card, which specifically comprises:
when the GPIO signal is high level, the baseboard management controller is in place, the micro control unit is communicated with the baseboard management controller link circuit to control the baseboard management controller to select the first network card, and the input/output system is configured with the first network card drive,
when the GPIO signal is low level, the substrate management controller is not in place, the micro control unit is communicated with the platform control center link, the control platform control center selects the second network card, and meanwhile the input and output system is configured with the second network card drive.
Further, before the substrate management controller selects the first network card, initializing a network port where the first network card is located through an input-output system; before the platform control center selects the second network card, initializing the network port where the second network card is located through an input-output system.
Further, a communication protocol between the baseboard management controller and the first network card is NC-SI or RMII; and the communication protocol between the platform control center and the second network card is NC-SI or RMII.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
the invention has proposed switching system and method between a server network card, this system includes the base plate management controller, platform control center, first network card, second network card and micro-control unit set up between base plate management controller and first network card; the platform control center is connected with the second network card; the micro control unit is used for judging whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card. In the invention, the link from the baseboard management controller to the special network card of the baseboard management controller and the link from the platform control center to the special network card of the host computer are both available in the same time, and only one link is available. The invention also provides a switching method between the server network cards, which is based on a switching system between the server network cards, and the invention sets the switching function of the hardware network card between the special network card for the substrate management controller and the special network card for the server system through an output system, realizes the message judgment of whether the substrate management controller is in place by means of GPIO port signals, thereby switching the network card link connection through setting the corresponding high and low power frequencies by a micro control unit, and in addition, if the shared network card also needs to change the link state according to whether the substrate management controller is in place due to the hardware structure design, the mode of directly closing the corresponding network card characteristic under the output system can be utilized. The invention has very convenient utilization for the design of the redundant network cards generated under different configurations, and is convenient for the switching management of the specific network cards of the server.
Drawings
Fig. 1 is a diagram illustrating the structure relationship between a baseboard management controller and a network card dedicated to the baseboard management controller in the prior art;
fig. 2 is a schematic diagram of a switching system connection between network cards of a server according to embodiment 1 of the present invention;
fig. 3 is a flowchart of a method for switching between network cards of a server according to embodiment 2 of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
Example 1
The embodiment 1 of the invention provides a system for switching between server network cards, which is realized by switching a server fixed hardware network card between a special network card for a substrate management controller and a special network card for a host through an input and output system. The message judgment of whether the substrate management controller is in place is realized by means of GPIO port signals, so that the link connection of the network card is switched by setting corresponding high and low frequencies through the micro control unit, and in addition, if the shared network card needs to change the link state according to whether the substrate management controller is in place due to hardware structure design, a mode of directly closing the corresponding network card characteristic under an output system can be utilized.
As shown in fig. 1, a system for switching between network cards of a server includes a baseboard management controller, a platform control center, a first network card, a second network card, and a micro control unit disposed between the baseboard management controller and the first network card; the platform control center is connected with the second network card;
the micro control unit is used for judging whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
The first network card is a BMC (baseboard management controller) special network card, namely a baseboard management controller special network card, and the second network card is a Host special network card, namely a Host special network card.
Before the substrate management controller selects the first network card, initializing the network port where the first network card is located through an input-output system; before the platform control center selects the second network card, initializing the network port where the second network card is located through an input-output system. The portal must be initialized before entering the server system, and is therefore defined herein as the BIOS boot phase time.
In the application, the target network card automatically judges the Disable and Enable state functions through GPIO, the switch authority is all the characteristics of the network card, and after the characteristics of all the network card server systems of the Disable under an input-output system, the network card can be regarded as a BMC special network card under the configuration of a substrate management controller.
In fig. 1, the baseboard management controller is also connected with DRAM, FLash, RGB, COM (X4), ADC, SD (X2).
The platform control center, namely the intel PCH/AMD FCH and the baseboard management controller are communicated with the baseboard management controller through PCIE, LPC and USB 2.0.
And a third network card is arranged between the substrate management controller and the substrate management controller, and the third network card is a BMC and Host sharing network card.
And the micro control unit establishes a connection link with the substrate management controller and the platform control center respectively.
The switching system also comprises an input and output system;
the input and output system is used for acquiring whether the substrate management controller is in place or not and sending the substrate management controller to the micro control unit through the GPIO signal; and when the baseboard management controller selects the first network card, configuring a first network card driver, and when the platform control center selects the second network card, configuring a second network card driver.
The GPIO specific port signal is reserved as a reserved port for transmitting the substrate management control whether the substrate management control is in-place information to the micro control unit in the design process;
no matter whether the substrate management controller is in place or not, the information needs to be transmitted to the micro control unit and the input/output system through GPIO signals of the same path, the former is used for realizing the actual physical link connection of the special network card by changing the physical frequency setting height, and the latter is used for controlling the drive setting inside the automatic selection special network card to be configured according to different requirements under different conditions. The special network card comprises a BMC special network card and a Host special network card.
In the invention, the link from the baseboard management controller to the special network card of the baseboard management controller and the link from the platform control center to the special network card of the host exist at the same time but are not communicated in physical realization, and whether the link is disconnected or not is controlled by setting the corresponding frequency through the micro control unit in the actual use circuit logic, and one link and only one link are in a connected state at the same time.
If the Shared network card needs to change the link state according to whether the baseboard management controller is in place or not due to the hardware structure design, a mode of directly closing the corresponding network card characteristic under the input and output system can be utilized. If the third network card needs to be switched, the input-output system stops driving the third network card; the micro control unit judges whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
The BMC dedicated network card cannot be realized by the implementation logic of the shared network card, and the BMC dedicated network port cannot perform data communication with the server system.
The BIOS is provided with the network card control module, the network card control module and the BMC can judge the code execution logic by taking the in-place information as the definition condition at the same time, the code logic can be realized by judging the corresponding condition in any BIOS code containing the information, and the two information can be combined for use because of independent mutual exclusion relation, so that double signal bits and four (00, 01, 10 and 11) definition conditions exist, and the ductility and operability of the code logic are greatly expanded.
The invention has very convenient utilization for the design of the redundant network cards generated under different configurations, and is convenient for the switching management of the specific network cards of the server.
Example 2
Based on the system for switching between the server network cards provided in embodiment 1 of the present invention, embodiment 2 of the present invention provides a method for switching between the server network cards, and fig. 3 shows a flowchart of the method for switching between the server network cards in embodiment 2 of the present invention.
In step S301, a GPIO signal for determining whether the bmc is in place is received; and the input and output system is used for acquiring whether the substrate management controller is in place or not and sending the substrate management controller to the micro control unit through the GPIO signal. The GPIO specific port signal is reserved as a reserved port for transmitting the information whether the substrate management controller is in place or not to the micro control unit in the design process.
In step S302, whether the baseboard management controller is in place is determined by the level of the GPIO signal, and if the baseboard management controller is in place, the baseboard management controller is controlled to select the first network card; and if the baseboard management controller is not in place, the control platform control center selects a second network card. The method specifically comprises the following steps:
when the GPIO signal is at a high level, the substrate management controller is in place, the micro control unit is communicated with the substrate management controller link, the substrate management controller is controlled to select the first network card, and meanwhile the input and output system is configured with a first network card drive.
When the GPIO signal is low level, the substrate management controller is not in place, the micro control unit is communicated with the platform control center link, the control platform control center selects the second network card, and meanwhile the input and output system is configured with the second network card drive.
Before the substrate management controller selects the first network card, initializing the network port where the first network card is located through an input-output system; before the platform control center selects the second network card, initializing the network port where the second network card is located through an input-output system. The portal must be initialized before entering the server system, and is therefore defined herein as the BIOS boot phase time.
In the application, the target network card automatically judges the Disable and Enable state functions through GPIO, the switch authority is all the characteristics of the network card, and after the characteristics of all the network card server systems of the Disable under an input-output system, the network card can be regarded as a BMC special network card under the configuration of a substrate management controller.
The communication protocol between the substrate management controller and the first network card is NC-SI or RMII; and the communication protocol between the platform control center and the second network card is NC-SI or RMII.
No matter whether the substrate management controller is in place or not, the information needs to be transmitted to the micro control unit and the input/output system through GPIO signals of the same path, the former is used for realizing the actual physical link connection of the special network card by changing the physical frequency setting height, and the latter is used for controlling the drive setting inside the automatic selection special network card to be configured according to different requirements under different conditions. The special network card comprises a BMC special network card and a Host special network card.
In the invention, the link from the baseboard management controller to the special network card of the baseboard management controller and the link from the platform control center to the special network card of the host exist at the same time but are not communicated in physical realization, and whether the link is disconnected or not is controlled by setting the corresponding frequency through the micro control unit in the actual use circuit logic, and one link and only one link are in a connected state at the same time.
If the Shared network card needs to change the link state according to whether the baseboard management controller is in place or not due to the hardware structure design, a mode of directly closing the corresponding network card characteristic under the input and output system can be utilized. If the third network card needs to be switched, the input-output system stops driving the third network card; the micro control unit judges whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
The BMC dedicated network card cannot be realized by the implementation logic of the shared network card, and the BMC dedicated network port cannot perform data communication with the server system.
The BIOS is provided with the network card control module, the network card control module and the BMC can judge the code execution logic by taking the in-place information as the definition condition at the same time, the code logic can be realized by judging the corresponding condition in any BIOS code containing the information, and the two information can be combined for use because of independent mutual exclusion relation, so that double signal bits and four (00, 01, 10 and 11) definition conditions exist, and the ductility and operability of the code logic are greatly expanded.
The invention has very convenient utilization for the design of the redundant network cards generated under different configurations, and is convenient for the switching management of the specific network cards of the server.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Furthermore, 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 elements inherent in the list. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the scope of the present invention is not limited thereto. Various modifications and alterations will occur to those skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. On the basis of the technical scheme of the invention, various modifications or changes which can be made by a person skilled in the art without creative efforts are still within the protection scope of the invention.
Claims (10)
1. A switching system between server network cards is characterized by comprising a substrate management controller, a platform control center, a first network card, a second network card and a micro control unit arranged between the substrate management controller and the first network card; the platform control center is connected with the second network card;
the micro control unit is used for judging whether the substrate management controller is in place or not through GPIO signals; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
2. The switching system between server network cards according to claim 1, wherein the switching system further comprises an input output system;
the input and output system is used for acquiring whether the substrate management controller is in place or not and sending the substrate management controller to the micro control unit through a GPIO (general purpose input/output) signal; and when the baseboard management controller selects the first network card, configuring a first network card driver, and when the platform control center selects the second network card, configuring a second network card driver.
3. The system for switching between network cards of a server according to claim 1, wherein the first network card is a network card dedicated to a baseboard management controller; the second network card is a host special network card.
4. The switching system between the network cards of the server according to claim 1, further comprising a third network card; and the third network card is positioned between the substrate management controller and the platform control center.
5. The system for switching between network cards of a server according to claim 4, wherein the third network card is a shared network card.
6. The system for switching between network cards of a server according to claim 5, wherein if the third network card needs to be switched, the input/output system stops driving the third network card; the micro control unit judges whether the substrate management controller is in place or not through the GPIO signal; if the baseboard management controller is in place, the micro control unit controls the baseboard management controller to select a first network card; and if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card.
7. A method for switching between server network cards, which is implemented based on the switching system between server network cards of any one of claims 1 to 6, and is characterized by comprising the following steps:
receiving a GPIO signal for judging whether the substrate management controller is in place;
judging whether the substrate management controller is in place or not according to the level of the GPIO signal, and controlling the substrate management controller to select a first network card if the substrate management controller is in place; and if the baseboard management controller is not in place, the control platform control center selects a second network card.
8. The method according to claim 7, wherein the judgment of the presence of the baseboard management controller is made by the level of the GPIO signal, and if the baseboard management controller is present, the baseboard management controller is controlled to select the first network card; if the baseboard management controller is not in place, the micro control unit controls the platform control center to select the second network card, which specifically comprises:
when the GPIO signal is high level, the baseboard management controller is in place, the micro control unit is communicated with the baseboard management controller link circuit to control the baseboard management controller to select the first network card, and the input/output system is configured with the first network card drive,
when the GPIO signal is low level, the substrate management controller is not in place, the micro control unit is communicated with the platform control center link, the control platform control center selects the second network card, and meanwhile the input and output system is configured with the second network card drive.
9. The method according to claim 8, further comprising initializing a port where the first network card is located through an input/output system before the baseboard management controller selects the first network card; before the platform control center selects the second network card, initializing the network port where the second network card is located through an input-output system.
10. The method for switching between network cards of a server according to any one of claims 7 to 9, wherein a communication protocol between the baseboard management controller and the first network card is NC-SI or RMII; and the communication protocol between the platform control center and the second network card is NC-SI or RMII.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933973.0A CN113867787A (en) | 2021-08-13 | 2021-08-13 | Switching system and method between server network cards |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933973.0A CN113867787A (en) | 2021-08-13 | 2021-08-13 | Switching system and method between server network cards |
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| CN113867787A true CN113867787A (en) | 2021-12-31 |
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| CN202110933973.0A Withdrawn CN113867787A (en) | 2021-08-13 | 2021-08-13 | Switching system and method between server network cards |
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- 2021-08-13 CN CN202110933973.0A patent/CN113867787A/en not_active Withdrawn
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Application publication date: 20211231 |