CN110008165B - A kind of NTB link management method, system and related device - Google Patents

Abstract

The application discloses a method and a system for managing an NTB link, an NTB node device, an NTB link and a computer readable storage medium, wherein the method comprises the following steps: virtualizing the NTB link into a network card to perform network packet test, and judging whether the NTB link is communicated according to a test result; if so, determining the packet delay, and adjusting the EQ parameter of the PCIe Switch in the NTB link according to the packet delay so that the NTB link reaches a preset link state. According to the NTB link management method, before the NTB link is communicated, the NTB link is virtualized into an interconnected network card for dynamic debugging and testing, different link EQ parameters are matched according to the time delay of network packets, the connectivity of the NTB link after establishment is ensured, and the reliability of the NTB link is improved.

Description

A kind of NTB link management method, system and related device

technical field

The present application relates to the field of computer technology, and more particularly, to an NTB link management method and system, an NTB node device, an NTB link, and a computer-readable storage medium.

Background technique

With the development of PCIe (peripheral component interconnect express, a high-speed serial computer expansion bus standard) technology, NTB (full name in English: Non-Transparent-Bridge, non-transparent bridge) high-speed interconnect technology is increasingly used in servers and Multi-control storage field. Due to its unique non-transparency, the NTB link cannot directly reflect the connectivity after the link is established. If an NTB link fails, it is difficult to locate and solve it quickly. If the link quality is poor, it will directly lead to system degradation or failure to establish a cluster, which greatly affects the overall reliability of the system.

Therefore, how to improve the reliability of the NTB link is a technical problem that needs to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of this application is to provide an NTB link management method and system, an NTB node device, an NTB link, and a computer-readable storage medium, so as to improve the reliability of the NTB link.

To achieve the above purpose, the application provides a method for managing an NTB link, including:

The NTB link is virtualized into a network card and a network packet test is performed, and it is judged whether the NTB link is connected according to the test result;

If so, determine the packet delay, and adjust the EQ parameter of the PCIeSwitch in the NTB link according to the packet delay, so that the NTB link reaches a preset link state.

Among them, it also includes:

The packet delay and the adjusted EQ parameters are shared among the different PCIe Switches, so that all the PCIe Switches obtain packet data satisfying the packet delay.

Among them, it also includes:

The configuration parameters in the PCIe Switch are restored to preset values, wherein the preset values are factory settings of the PCIe Switch.

In order to achieve the above-mentioned purpose, the application provides a kind of NTB link management system, including:

A test module, for performing network packet testing by virtualizing the NTB link into a network card, and judging whether the NTB link is connected according to the test result;

An adjustment module, configured to determine the packet delay when the NTB link is connected, and adjust the EQ parameter of the PCIe Switch in the NTB link according to the packet delay, so that the NTB link reaches a preset chain road status.

To achieve the above object, the present application provides an NTB node device, including an RC and a PCIe Switch; the RC is connected to the PCIe Switch;

memory for storing computer programs;

The processor is connected to the RC, the PCIe Switch and the memory, and is used for implementing the steps of the above NTB link management method when the computer program is executed.

Among them, it also includes:

A serial port module connected to the processor for communicating with external devices.

Among them, it also includes:

It is connected with the serial port module and uses a wireless module that converts the serial port signal output by the serial port module into a wireless signal.

Among them, it also includes:

An indication module connected to the processor and used for displaying the device state of the NTB node.

In order to achieve the above object, the present application provides an NTB link, including a first NTB node device and a second NTB node device; the first NTB node device and the second NTB node device are the above NTB node devices;

The first PCIe Switch in the first NTB node device is connected to the second PCIe Switch in the second NTB node device through a backplane interconnection module.

To achieve the above object, the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above NTB link management method are implemented.

It can be seen from the above solutions that a method for managing an NTB link provided by the present application includes: virtualizing the NTB link into a network card to perform a network packet test, and judging whether the NTB link is connected according to the test result; if so, determining the packet delay, and adjust the EQ parameters of the PCIe Switch in the NTB link according to the packet delay, so that the NTB link reaches a preset link state.

In the NTB link management method provided by this application, before the NTB link is connected, the NTB link is virtualized into an interconnected network card for dynamic commissioning, and different link EQ parameters are matched according to the delay of network packets to ensure the NTB link. Post-establishment connectivity and improved reliability of NTB links. The present application also discloses an NTB link management system, an NTB node device, an NTB link and a computer-readable storage medium, which can also achieve the above technical effects.

It is to be understood that the foregoing general description and the following detailed description are exemplary only and do not limit the application.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort. The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and together with the following detailed description, are used to explain the present disclosure, but not to limit the present disclosure. In the attached image:

FIG. 1 is a flowchart of a method for managing an NTB link according to an exemplary embodiment;

2 is a structural diagram of an NTB link management system according to an exemplary embodiment;

FIG. 3 is a structural diagram of an NTB link according to an exemplary embodiment.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The embodiment of the present application discloses an NTB link management method, which improves the reliability of the NTB link.

Referring to FIG. 1, a flowchart of an NTB link management method according to an exemplary embodiment, as shown in FIG. 1, includes:

S101: virtualize the NTB link into a network card to perform a network packet test, and determine whether the NTB link is connected according to the test result; if so, enter S102;

The execution body of this embodiment may be an embedded management chip such as BMC (full name in Chinese: Baseboard Management Controller, full name in English: Baseboard Management Controller), which is located on the board and virtualizes the NTB link into multiple The network card interconnected between the controllers performs a network packet transmission test, and can judge whether the NTB link is connected according to the test result, if so, go to S102; if not, it means that the NTB link can notify the management terminal to give an alarm.

S102: Determine the packet delay, and adjust the EQ parameter of the PCIeSwitch in the NTB link according to the packet delay, so that the NTB link reaches a preset link state.

After it is determined that the NTB link is connected, the packet delay can be determined through the test result, and different EQ parameters can be dynamically adjusted according to the packet delay to achieve the preset link status, that is, the link status can be adjusted by adjusting the EQ parameters. Make the NTB link reach the best connection state.

On the basis of the above embodiment, as a preferred implementation manner, the method further includes: sharing the packet delay and the adjusted EQ parameters among different PCIe Switches, so that all the PCIe Switches can obtain the data. Packet data satisfying the packet delay.

In a specific implementation, communication sharing of packet delay data and EQ parameters can be performed through a wireless module, and EQ parameters can be configured collaboratively among multiple controllers to jointly obtain network packet data that meets preset delay standards.

On the basis of the foregoing embodiment, as a preferred implementation manner, the method further includes: restoring the configuration parameters in the PCIe Switch to preset values; wherein, the preset values are factory settings of the PCIe Switch.

In a specific implementation, the configuration parameters in the PCIe Switch can be directly restored to factory settings to prevent accidental modification of the parameters from causing NTB link failures.

In the NTB link management method provided by the embodiments of the present application, before the NTB link is connected, the NTB link is virtualized into an interconnected network card for dynamic commissioning, and different link EQ parameters are matched according to the delay of the network packet to ensure the NTB link. The connectivity after the link is established, and the reliability of the NTB link is improved.

The following describes an NTB link management system provided by an embodiment of the present application. An NTB link management system described below and an NTB link management method described above may be referred to each other.

Referring to FIG. 2, a structural diagram of an NTB link management system according to an exemplary embodiment, as shown in FIG. 2, includes:

A test module 201 is used to virtualize the NTB link into a network card and perform a network packet test, and judge whether the NTB link is connected according to the test result;

The adjustment module 202 is configured to determine the packet delay when the NTB link is connected, and adjust the EQ parameter of the PCIe Switch in the NTB link according to the packet delay, so that the NTB link reaches a preset value link status.

On the basis of the above embodiment, as a preferred implementation, it also includes:

A sharing module, configured to share the packet delay and the adjusted EQ parameters among different PCIe Switches, so that all the PCIe Switches obtain packet data satisfying the packet delay.

On the basis of the above embodiment, as a preferred implementation, it also includes:

A restoration module, configured to restore the configuration parameter in the PCIe Switch to a preset value, wherein the preset value is a factory setting of the PCIe Switch.

Regarding the system in the above-mentioned embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

In the NTB link management system provided by the embodiment of the present application, before the NTB link is connected, the NTB link is virtualized into an interconnected network card for dynamic commissioning, and different link EQ parameters are matched according to the delay of the network packet to ensure the NTB link. The connectivity after the link is established, and the reliability of the NTB link is improved.

An embodiment of the present application provides an NTB node device, including an RC (Root Complex) and a PCIe Switch; the RC is connected to the PCIe Switch;

memory for storing computer programs;

The processor is connected to the RC, the PCIe Switch and the memory, and is used for implementing the steps of the NTB link management method provided by any of the above embodiments when the computer program is executed.

On the basis of the above embodiment, as a preferred implementation manner, the method further includes: a serial port module connected to the processor and used for communicating with external devices. The serial port module can communicate between the processor and the outside world.

On the basis of the above-mentioned embodiment, as a preferred implementation manner, the method further includes: a wireless module connected to the serial port module and used to convert the serial port signal output by the serial port module into a wireless signal. The wireless module can convert the serial port module signal into a wireless signal such as wifi, and can wirelessly interconnect the processors between multiple controllers.

On the basis of the above-mentioned embodiment, as a preferred implementation manner, the method further includes: an indication module connected to the processor and configured to display the device status of the NTB node. The indicating module is located on the board, directly controlled by the processor, and externally indicates the real-time status of the current NTB node device.

This embodiment of the present application automatically switches the clock buffer mode and firmware of the PCIe Switch when the system enables spread spectrum, and automatically extends the reset release time of the PCIe Switch, that is, sets the reset release time to a preset value, and the lower limit of the preset value is the NTB link Time to change from SSC mode to CFC mode. It can be seen that the embodiment of the present application avoids the change from the SSC to the CFC by setting a reasonable reset release time, thereby improving the reliability of the NTB link.

An embodiment of the present application provides an NTB link, as shown in FIG. 3 , including a first NTB node device and a second NTB node device; the first NTB node device and the second NTB node device are any of the above An NTB node device provided by an embodiment;

That is, the first NTB node device includes a first RC and a first PCIe Switch; the first RC is connected to the first PCIe Switch; a first memory for storing computer programs; connected to the first processor for implementing the steps of the NTB link management method provided by any of the above embodiments when executing the computer program.

The second NTB node device includes a second RC and a second PCIe Switch; the second RC is connected to the second PCIe Switch; a second memory for storing computer programs; connected to the second RC, the second PCIe Switch and the second memory , a second processor for implementing the steps of the NTB link management method provided by any of the above embodiments when executing the computer program.

The first PCIe Switch in the first NTB node device is connected to the second PCIe Switch in the second NTB node device through a backplane interconnection module.

In the embodiment of the present application, before the NTB link is connected, the NTB link is virtualized into an interconnected network card for dynamic commissioning, and different link EQ parameters are matched according to the delay of the network packet, so as to ensure the connectivity after the NTB link is established. And improve the reliability of NTB link.

An embodiment of the present application provides a computer-readable storage medium including program instructions, and when the program instructions are executed by a processor, the steps of the foregoing NTB link management method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory including program instructions, and the above-mentioned program instructions can be executed by a processor to implement the above-mentioned NTB link management method.

The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present application, several improvements and modifications can also be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is no such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Claims (9)

1. An NTB link management method, comprising:

virtualizing the NTB link into a network card to perform network packet test, and judging whether the NTB link is communicated according to a test result;

if so, determining the packet delay, and adjusting the EQ parameter of the PCIe Switch in the NTB link according to the packet delay so that the NTB link reaches a preset link state;

and carrying out data sharing on the packet delay and the adjusted EQ parameters among different PCIe switches so that all the PCIe switches acquire packet data meeting the packet delay.

2. The NTB link management method according to claim 1, further comprising:

restoring the configuration parameters in the PCIe Switch to preset values; and the preset value is factory setting of the PCIeSchw.

3. An NTB link management system, comprising:

the test module is used for virtualizing the NTB link into a network card to carry out network packet test and judging whether the NTB link is communicated or not according to a test result;

and the adjusting module is used for determining the packet delay when the NTB link is communicated and adjusting the EQ parameter of the PCIe Switch in the NTB link according to the packet delay so as to enable the NTB link to reach a preset link state.

4. An NTB node device, comprising an RC and a PCIe Switch; the RC is connected with the PCIe Switch;

a memory for storing a computer program;

a processor coupled to the RC, the PCIe Switch, and the memory, for implementing the steps of the NTB link management method of claim 1 or 2 when executing the computer program.

5. The NTB node equipment according to claim 4, further comprising:

and the serial port module is connected with the processor and is used for communicating with external equipment.

6. The NTB node equipment according to claim 5, further comprising:

and the wireless module is connected with the serial port module and is used for converting the serial port signal output by the serial port module into a wireless signal.

7. The NTB node equipment according to claim 4, further comprising:

and the indicating module is connected with the processor and is used for displaying the state of the NTB node equipment.

8. An NTB link, comprising a first NTB node equipment and a second NTB node equipment; the first and second NTB node equipments are the NTB node equipments according to any one of claims 4-7;

and a first PCIe Switch in the first NTB node equipment is connected with a second PCIeSwitch in the second NTB node equipment through a backboard interconnection module.

9. A computer-readable storage medium, having an NTB link management program stored thereon, which when executed by a processor, performs the steps of the NTB link management method according to claim 1 or 2.

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