CN106850814B - Method for realizing sensor information acquisition by adding custom command support - Google Patents

Abstract

The invention particularly relates to a method for adding custom command support to realize sensor information collection. The method of adding custom command support to realize sensor information acquisition is to add a sensor acquisition thread in the IPMI protocol stack of the SMC, and add support for custom commands in the IPMI protocol stack of the BMC of each computing unit; the sensor acquisition The thread does not communicate directly with the Message Handler, and the function of the self-defined command can be indexed and called through the command mapping table provided by the Message Handler of the BMC, so that the IPMI protocol stack of the SMC has both the functions of the IPMI Server and the IPMI Client, so that the SMC Information collection from sensors suitable for servers with multiple computing units. This method of adding custom command support to realize sensor information collection is based on the implementation of the IPMI protocol stack. Only a few changes can be made to make the IPMI protocol stack of the SMC have both the functions of IPMI Server and IPMI Client. The sensor information collection of the server of the computing unit.

Description

A method for adding custom command support to realize sensor information collection

technical field

The invention relates to the technical field of server management, in particular to a method for adding custom command support to realize sensor information collection.

Background technique

For a server with multiple computing units, the SMC (System Management Controller, system management controller) on the management unit needs to collect the BMC (Baseboard Management Controller, baseboard management controller) of each computing unit while collecting its own sensor information. sensor information to monitor the health of the entire server.

SMC adopts the same implementation code of IPMI (Intelligent Platform Management Interface) protocol stack as BMC, so SMC is essentially the same as BMC, that is, it is an IPMI Server, which is provided by an external IPMItool or a built-in Web server that supports IPMI access interface. Act as an IPMI Client. For BMC, this design is reasonable, because in a server with multiple computing units, BMC is a relatively simple IPMI Server.

However, for the SMC, in addition to supporting the access of the external IPMI access interface, that is, acting as an IPMI Server, it also needs to actively initiate access to the BMC of each computing unit, that is, acting as an IPMI Client. In the existing solution, the SMC realizes sensor information collection by adding a relatively independent process of accessing the BMC of each computing unit apart from the IPMI protocol stack, which cannot make good use of the functions of the existing IPMI protocol stack and IPMI protocol. Therefore, it is necessary to propose a new method to realize the collection of server sensor information.

Based on the above problems, the present invention proposes a method for adding custom command support to realize sensor information collection.

SUMMARY OF THE INVENTION

In order to make up for the defects of the prior art, the present invention provides a simple and efficient method for adding custom command support to realize sensor information collection.

The present invention is achieved through the following technical solutions:

A method for adding custom command support to realize sensor information collection, characterized in that: adding a sensor acquisition thread in the IPMI protocol stack of the SMC, and adding support for the custom command in the IPMI protocol stack of the BMC of each computing unit The sensor acquisition thread does not communicate directly with the Message Handler, and the function of the self-defined command can be indexed and called by the command mapping table provided by the Message Handler of the BMC, and then the IPMI protocol stack of the SMC has both IPMI Server and IPMI Client. The function makes SMC suitable for sensor information acquisition of servers with multiple computing units.

The reply message of the custom command to obtain the sensor information of the BMC initiated by the sensor acquisition thread is an IPMI response message, but the SMC's Message Handler regards it as an IPMI request message instead of an IPMI response message, so it can be processed by IPMI Processed by the requested function; in the function processing the IPMI request, the IPMI response message of the self-defined command is identified by judging the network function code NetFn, and the corresponding processing is performed to provide external access; while the BMC uses the standard IPMI protocol. The implementation method of the custom command supports the custom command.

A custom command for sending and acquiring sensor data of each computing unit through the sensor acquisition thread, the custom command uses the unused network function code NetFn in the system to distinguish it from other command sets, and is used in the function of MessageHandler to process IPMI requests Increase the judgment of the network function code NetFn in the reply message of the BMC; if the value of the network function code NetFn indicates the network function code NetFn unique to the custom command, the reply message will be intercepted and the sensor data in it will be parsed in a formatted form Stored in a shared buffer for external access.

The present invention adds a custom command to support a method for realizing sensor information collection, comprising the following steps:

(1) Add a sensor acquisition thread to the IPMI protocol stack of SMC;

(2) A custom command sent by the sensor acquisition thread to obtain the sensor data of a certain computing unit, and the custom command uses the unused network function code NetFn in the system to distinguish it from other command sets;

(3) The Message Handler of the BMC of the computing unit is implemented by indexing the method of the command mapping table and calling the function of the custom command added in the IPMI protocol stack. After acquiring the sensor information of the BMC, it replies to the SMC in the form of an IPMI response;

(4) Add the judgment of the network function code NetFn in the BMC reply message to the function of the SMC's Message Handler for processing IPMI requests. Reply to the message and parse the sensor data in it, and store it in a shared buffer in a formatted form for external access;

(5) Traverse the BMC of each computing unit to obtain sensor information of all computing units.

The beneficial effects of the invention are as follows: the method for realizing sensor information collection by adding custom command support is based on the realization of the IPMI protocol stack, adding a sensor collection thread in the IPMI protocol stack of the SMC, and adding a sensor collection thread in the BMC of each computing unit. Added support for custom commands in the IPMI protocol stack. With only minor changes, the SMC's IPMI protocol stack can function as both IPMI Server and IPMI Client, which is suitable for sensor information collection on servers with multiple computing units.

Description of drawings

FIG. 1 is a schematic diagram of a method for implementing sensor information collection by adding custom command support according to the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In this embodiment, the blade server includes a management unit, a computing unit, a switching unit, a power supply unit, and a fan unit. There is an SMC on the management unit and a BMC on the computing unit. The SMC provides external access interfaces through the Web management interface.

The method of adding custom command support to realize sensor information acquisition is to add a sensor acquisition thread in the IPMI protocol stack of the SMC, and add support for custom commands in the IPMI protocol stack of the BMC of each computing unit; the sensor acquisition The thread does not communicate directly with the Message Handler, and the function of the self-defined command can be indexed and called through the command mapping table provided by the Message Handler of the BMC, so that the IPMI protocol stack of the SMC has the functions of IPMI Server and IPMI Client, making the SMC suitable for use Information collection from sensors on servers with multiple computing units.

The reply message of the custom command to obtain the sensor information of the BMC initiated by the sensor acquisition thread is an IPMI response message, but the SMC's Message Handler regards it as an IPMI request message instead of an IPMI response message, so it can be processed by IPMI Processed by the requested function; in the function processing the IPMI request, the IPMI response message of the self-defined command is identified by judging the network function code NetFn, and the corresponding processing is performed to provide external access; while the BMC uses the standard IPMI protocol. The implementation method of the custom command supports the custom command.

A custom command for sending and acquiring sensor data of each computing unit through the sensor acquisition thread, the custom command uses the unused network function code NetFn in the system to distinguish it from other command sets, and is used in the function of MessageHandler to process IPMI requests Increase the judgment of the network function code NetFn in the reply message of the BMC; if the value of the network function code NetFn indicates the network function code NetFn unique to the custom command, the reply message will be intercepted and the sensor data in it will be parsed in a formatted form Stored in a shared buffer for external access.

The method for adding custom command support to realize sensor information collection includes the following steps:

(1) Add a sensor acquisition thread to the IPMI protocol stack of SMC;

(2) A custom command sent by the sensor acquisition thread to obtain the sensor data of a certain computing unit, and the custom command uses the unused network function code NetFn in the system to distinguish it from other command sets;

(3) The Message Handler of the BMC of the computing unit is implemented by indexing the method of the command mapping table and calling the function of the custom command added in the IPMI protocol stack. After acquiring the sensor information of the BMC, it replies to the SMC in the form of an IPMI response;

(4) Add the judgment of the network function code NetFn in the BMC reply message to the function of the SMC's Message Handler for processing IPMI requests. Reply to the message and parse the sensor data in it, and store it in a shared buffer in a formatted form for external access;

(5) Traverse the BMC of each computing unit to obtain sensor information of all computing units.

In addition to having all the functions of the standard IPMI protocol stack, the SMC can also run the sensor acquisition thread and the customized Web server added in the IPMI protocol stack proposed by the present invention. The SMC's sensor acquisition thread sends and obtains the custom command of all the sensor information of the BMC. After the processing of the above method, the information returned by the BMC executing the custom command is finally processed by the function of the SMC's Message Handler to process the IPMI request. The data is stored in the shared buffer in a formatted form. The customized web server provides an access interface to the data in the shared buffer. The SMC and the acquired sensor information of each computing unit can be displayed through the web management interface.

Claims (1)

1. A method for realizing sensor information acquisition by adding custom command support is characterized in that: adding a sensor acquisition thread in an IPMI protocol stack of the SMC, and adding support for a user-defined command in the IPMI protocol stack of the BMC of each computing unit; the sensor acquisition thread is not in direct communication with the Message Handler, and the function of the self-defined command can be indexed and called through a command mapping table provided by the Message Handler of the BMC, so that the IPMI protocol stack of the SMC has the functions of an IPMI Server and an IPMI Client, and the SMC is suitable for information acquisition of a sensor of a Server with a plurality of computing units;

the reply Message of the self-defining command for acquiring the sensor information of the BMC, which is initiated by the sensor acquisition thread, is an IPMI response Message, but the Message Handler of the SMC regards the reply Message as an IPMI request Message rather than an IPMI response Message, so that the reply Message can be processed by a function for processing the IPMI request; identifying the IPMI response message of the self-defined command by judging a network function code NetFn in a function for processing the IPMI request, and carrying out corresponding processing to provide external access; the BMC supports the user-defined command by using a user-defined command implementation method specified by a standard IPMI protocol;

sending and acquiring a custom command of sensor data of each computing unit through the sensor acquisition thread, wherein the custom command uses an unused network function code NetFn in a system to be different from other command sets, and meanwhile, the judgment of the network function code NetFn in a reply message of the BMC is added in a function of the MessageHandler for processing the IPMI request; if the value of the network function code NetFn indicates the specific network function code NetFn of the self-defined command, intercepting the reply message and analyzing the sensor data in the reply message, and storing the sensor data in a formatted form into a shared buffer area for external access;

the method comprises the following steps:

(1) adding a sensor acquisition thread in an IPMI protocol stack of the SMC;

(2) a sensor acquisition thread sends and acquires a custom command of sensor data of a certain computing unit, wherein the custom command uses an unused network function code NetFn in a system to be different from other command sets;

(3) the Message Handler of the BMC of the computing unit is indexed by a method of a command mapping table and calls a function of a custom command added in an IPMI protocol stack to realize the purpose, and the sensor information of the BMC is acquired and then the SMC is replied in an IPMI response mode;

(4) the method comprises the steps that judgment of a network function code NetFn in a BMC reply Message is added to a function of a Message Handler of the SMC for processing an IPMI request, and if the value of the network function code NetFn indicates the network function code NetFn specific to a self-defined command, the reply Message is intercepted, sensor data in the reply Message is analyzed, and the sensor data are stored in a shared buffer area in a formatted mode for external access;

(5) and traversing the BMC of each computing unit to acquire the sensor information of all the computing units.

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