WO2012149746A1 - 一种串口波特率配置方法及相关设备、系统 - Google Patents

一种串口波特率配置方法及相关设备、系统 Download PDF

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Publication number
WO2012149746A1
WO2012149746A1 PCT/CN2011/079815 CN2011079815W WO2012149746A1 WO 2012149746 A1 WO2012149746 A1 WO 2012149746A1 CN 2011079815 W CN2011079815 W CN 2011079815W WO 2012149746 A1 WO2012149746 A1 WO 2012149746A1
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WO
WIPO (PCT)
Prior art keywords
serial port
service system
baud rate
control module
management controller
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Application number
PCT/CN2011/079815
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English (en)
French (fr)
Inventor
刘洪广
王涛
张羽
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201180001896.XA priority Critical patent/CN102388583B/zh
Priority to PCT/CN2011/079815 priority patent/WO2012149746A1/zh
Publication of WO2012149746A1 publication Critical patent/WO2012149746A1/zh

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/382Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the present invention relates to the field of computers, and in particular, to a serial port baud rate configuration method and related devices and systems.
  • the data transmission process of the service system is generally as follows: The data of the service system is first sent to the serial network redirection (Serial Over LAN, SOL) control module through the serial port, and then the SOL control module sends the received data to the serial port through the serial port.
  • SOL Serial Over LAN
  • BMC Baseboard Management Controller
  • FIG. 1 is a schematic diagram of a data transmission process of an existing service system.
  • the service system data is sent to the serial port module of the SOL control module through the serial port of the service system, and the serial port module of the SOL control module sends the received service system data to the universal asynchronous receiving and receiving of the BMC (Universal Asynchronous Receiver/Transmitter). , UART) Serial port, finally the BMC sends the received service system data to the network side.
  • the BMC Universal Asynchronous Receiver/Transmitter
  • the BMC Universal Asynchronous Receiver/Transmitter
  • the BMC sends the received service system data to the network side.
  • the service system when the baud rate of the serial port of the service system changes, the service system writes its serial port baud rate to the serial port parameter register of the SOL control module, and the BMC passes its external memory interface (EMI).
  • EMI external memory interface
  • the service system actively writes its serial port baud rate to the serial port parameter register of the SOL control module, and does not wait for the BMC to respond to its serial port baud rate, but continues to send data, increasing the data transmission error.
  • the risk (such as data loss, garbled, etc.).
  • the BMC queries the serial port parameter register of the SOL control module through its EMI, the BMC generally uses the timed polling method to perform the inquiry, which wastes the BMC signaling resources.
  • a serial port baud rate configuration method includes:
  • the serial port network redirection SOL control module identifies the current serial port baud rate of the service system, and compares whether the current serial port baud rate of the service system is the same as the pre-stored service system serial port baud rate. If not, the pre-storage is performed. The serial port baud rate of the service system is updated to the current serial port baud rate of the service system;
  • the SOL control module buffers service system data sent by the serial port of the service system; the SOL control module generates an interrupt signal and sends the signal to the baseboard management controller, and receives a response message sent by the baseboard management controller; The information carried by the message indicates that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system, and the SOL control module sends the cached service system data to the baseboard management controller.
  • the response message is that the baseboard management controller receives the interrupt signal, acquires a current serial port baud rate of the service system stored in the SOL control module, and configures a serial port baud of the baseboard management controller. The rate is sent after the current serial port baud rate of the service system is consistent.
  • a serial port baud rate configuration method includes:
  • the baseboard management controller receives the interrupt signal sent by the serial port network redirection SOL control module, where the interrupt signal is that the SOL control module recognizes that the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate, and And updating the pre-stored service system serial port baud rate to the current serial port baud rate of the service system, and buffering the service system data sent by the service system serial port;
  • the baseboard management controller acquires a current serial port baud rate of the service system stored in the SOL control module, and configures a serial port baud rate of the baseboard management controller to be consistent with a current serial port baud rate of the service system;
  • the baseboard management controller sends a response message to the SOL control module, and the information carried by the response message indicates that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system.
  • a SOL control module including:
  • a frequency identification unit configured to identify a current serial port baud rate of the service system, and compare whether a current serial port baud rate of the service system is the same as a pre-stored service system serial port baud rate, if not, the The pre-stored service system serial port baud rate is updated to the current serial port baud rate of the service system;
  • the data buffer unit is configured to buffer service system data sent by the service system serial port; and the interrupt generating unit is configured to generate an interrupt signal. And sent to the substrate management controller;
  • a transmission control unit configured to receive a response message sent by the baseboard management controller; if the response message carries information indicating that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system, Transmitting the cached service system data to the baseboard management controller; the response message is that the baseboard management controller receives the interrupt signal, and acquires the service system stored in the SOL control module
  • the current serial port baud rate and the configuration of the baseboard management controller serial port baud rate are consistent with the current serial port baud rate of the service system.
  • a substrate management controller includes:
  • An interrupt controller configured to receive an interrupt signal sent by the SOL control module, where the interrupt signal is that the SOL control module recognizes that the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate, and The pre-stored service system serial port baud rate is updated to the current serial port baud rate of the service system, and the service system data sent by the serial port of the service system is cached;
  • a frequency obtaining unit configured to acquire a current serial port baud rate of the service system stored in the SOL control module
  • a frequency configuration unit configured to configure, according to the current serial port baud rate of the service system acquired by the frequency acquiring unit, a baud rate of the serial port of the baseboard management controller to be consistent with a current serial port baud rate of the service system;
  • the message feedback unit is configured to send a response message to the SOL control module, where the information carried by the response message indicates that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system.
  • a serial port baud rate configuration system comprising:
  • the SOL control module includes:
  • a frequency identification unit configured to identify a current serial port baud rate of the service system, and compare the service system Whether the current serial port baud rate is the same as the pre-stored service system serial port baud rate. If not, the pre-stored service system serial port baud rate is updated to the current serial port baud rate of the service system;
  • a service unit data for buffering the serial port of the service system; an interrupt generating unit, configured to generate an interrupt signal and sent to the baseboard management controller; and a transmission control unit, configured to receive the response sent by the baseboard management controller a message; if the information carried in the response message indicates that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system, sending the cached service system data to the baseboard management control Device
  • the substrate management controller includes:
  • An interrupt controller configured to receive an interrupt signal sent by the SOL control module
  • a frequency obtaining unit configured to acquire a current serial port baud rate of the service system stored in the SOL control module
  • a frequency configuration unit configured to configure, according to the current serial port baud rate of the service system acquired by the frequency acquiring unit, a baud rate of the serial port of the baseboard management controller to be consistent with a current serial port baud rate of the service system;
  • the message feedback unit is configured to send a response message to the SOL control module, where the information carried by the response message indicates that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system.
  • the data transmission (such as loss, garbled, etc.) error of the service system caused by the baud rate of the serial port of the baseboard management controller and the current serial port baud rate of the service system may be avoided, and the service system is greatly reduced.
  • the risk of data transmission errors may be avoided.
  • the baseboard management controller acquires the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system to avoid
  • the timed polling mode is used to obtain the serial port baud rate of the service system, which reduces the waste of signaling resources of the baseboard management controller.
  • FIG. 1 is a schematic diagram of a data transmission process of an existing service system
  • FIG. 2 is a flowchart of Embodiment 1 of a method for configuring a baud rate of a serial port according to an embodiment of the present invention
  • FIG. 3 is a flowchart of Embodiment 2 of a method for configuring a baud rate of a serial port according to an embodiment of the present invention
  • FIG. 5 is a flowchart of Embodiment 4 of a method for configuring a baud rate of a serial port based on a Sandy Bridge 4P system according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a level of an interrupt message according to an embodiment of the present invention.
  • FIG. 7a is a partial flowchart of a BMC control flow executed in a kernel layer according to an embodiment of the present invention
  • FIG. 7b is a partial flowchart of a BMC control flow executed in a user layer according to an embodiment of the present invention.
  • 7c is a flow chart of a BMC control flow running at a kernel layer according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a SOL control module according to an embodiment of the present invention.
  • FIG. 10 are schematic structural diagrams of a BMC according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a serial port baud rate configuration system according to an embodiment of the present invention.
  • the method for configuring the serial port baud rate and related devices and systems provided by the embodiments of the present invention can reduce the risk of data transmission errors of the service system and reduce the waste of BMC signaling resources.
  • the following is a detailed description.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 2 is a flowchart of a method for configuring a baud rate of a serial port according to an embodiment of the present invention. Figure. As shown in FIG. 2, the method may include the following steps:
  • the SOL control module identifies a current serial port baud rate of the service system.
  • a frequency identification unit can be disposed in the SOL control module, and the frequency identification unit can be used to identify the current serial port baud rate of the service system.
  • the SOL control module compares whether the current serial port baud rate of the service system is the same as the pre-stored service system serial baud rate. If not, perform step 203; if they are the same, perform step 201 again.
  • the frequency identification unit set in the SOL control module can compare whether the current serial port baud rate of the service system is the same as the serial port baud rate of the service system pre-stored by the frequency identification unit. .
  • the frequency identification unit identifies the current serial port baud rate of the service system, and compares whether the current serial port baud rate of the service system and the serial port baud rate of the service system pre-stored by the frequency identification unit are the same, without affecting the SOL control module.
  • the serial port module receives the operation of the service system data sent by the serial port of the service system, that is, regardless of whether the baud rate of the serial port of the service system changes or not, the SOL control module normally receives the service system data sent by the serial port of the service system through the serial port module.
  • the baud rate of the serial port of the service system can be regarded as a change from 0 to the current serial port baud rate of the service system.
  • the SOL control module updates the pre-stored service system serial port baud rate to the current serial port baud rate of the service system, and caches the service system data sent by the serial port of the service system.
  • a data buffer unit may be disposed in the SOL control module, and the SOL control module may store the pre-stored service system when comparing the current serial port baud rate of the service system with the pre-stored service system serial port baud rate.
  • the serial port baud rate is updated to the current serial port baud rate of the service system, and the service system data sent by the data cache unit is used to cache the service system serial port, that is, the SOL control module suspends the received service system data through the serial port module and the BMC.
  • the bus between the UART serial ports is sent to the BMC to prevent the BMC serial port baud rate (that is, the UART serial port baud rate) from being inconsistent with the current serial port baud rate of the service system, resulting in data system data reception errors (such as loss, garbled, etc.).
  • the SOL control module generates an interrupt signal and sends it to the BMC.
  • an interrupt generating unit may be disposed in the SOL control module, and the interrupt generating unit is configured to generate an interrupt signal, and send an interrupt signal generated by the bus between the interrupt generating unit and the interrupt controller of the BMC to the BMC. .
  • the interrupt signal is used to trigger the BMC to obtain the current serial port baud rate of the service system stored in the SOL control module, and configure the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system.
  • the SOL control module receives the response message sent by the BMC, and determines whether the information carried in the response message indicates that the BMC supports receiving the service system data in the current serial port baud rate of the service system. If yes, step 206 is performed; if not, executing Step 207.
  • a transmission control unit may be configured in the SOL control module, where the transmission control unit is configured to receive a response message sent by the BMC, and determine whether the information carried in the response message indicates that the BMC supports the current serial port baud rate of the service system. Receive business system data.
  • the transmission control unit provided in the SOL control module can receive a response message sent by the BMC through a bus between the transmission control unit and an external memory interface (EMI) of the BMC.
  • the foregoing response message is sent by the BMC after receiving the interrupt signal, obtaining the current serial port baud rate of the service system stored in the SOL control module, and configuring the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system.
  • EMI external memory interface
  • the BMC after receiving the interrupt signal, can obtain the current serial port baud rate of the service system stored in the SOL control module through its external memory interface (EMI).
  • EMI external memory interface
  • the SOL control module sends the cached service system data to the BMC.
  • the SOL control module receives the response message sent by the BMC, and determines, according to the information carried in the response message, that the BMC supports the service system data in the current serial port baud rate of the service system, and then the cached service system data can pass through the serial port.
  • the bus between the module and the UART serial port of the BMC is sent to the BMC, and the BMC sends the service system data to the network side to implement monitoring of the service system.
  • the BMC serial port baud rate is the BMC UART serial port baud rate.
  • the SOL control module clears the cached business system data.
  • the SOL control module determines, according to the information carried in the response message sent by the BMC, that the BMC does not support receiving the service system data in the current serial port baud rate of the service system, and the SOL control module can be used to clear the SOL.
  • the service system caches the service system data, so that when the BMC does not support receiving the service system data in the current serial port baud rate of the service system, the service system data is still sent to the BMC, and the service system data receiving error is caused.
  • the SOL control module actively identifies the current serial port baud rate of the service system.
  • the pre-stored service system serial port baud will be pre-stored.
  • the rate is updated to the current serial port baud rate of the service system, and the service system data sent by the service system serial port is buffered, and an interrupt signal is generated and sent to the BMC, which triggers the BMC to obtain the current serial port baud rate of the service system stored in the SOL control module, and configures the BMC.
  • the serial port baud rate is consistent with the current serial port baud rate of the service system.
  • the SOL control module After receiving the response message sent by the BMC, the SOL control module determines that the BMC supports receiving service system data at the current serial port baud rate of the service system, and sends the cached service system data to The BMC sends the service system data to the network side by the BMC.
  • the SOL control module caches the service system data sent by the serial port of the service system when the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate, that is, the service system data is temporarily sent to the BMC, waiting After the BMC is configured with the baud rate of the serial port and the current serial baud rate of the service system, the BMC sends the service system data to the BMC.
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system, thereby avoiding the use of timing.
  • the polling mode obtains the baud rate of the serial port of the service system, which reduces the waste of signaling resources of the BMC.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 3 is another serial wave according to an embodiment of the present invention. Flow chart of the special rate configuration method. As shown in FIG. 3, the method may include the following steps:
  • the BMC receives an interrupt signal sent by the SOL control module.
  • the interrupt signal is that the SOL control module recognizes that the current serial port baud rate of the service system is different from the pre-stored service system serial baud rate, and updates the pre-stored service system serial port baud rate to the current serial port of the service system. Rate and the service system data sent by the serial port of the service service system.
  • the interrupt signal is used to trigger the BMC to obtain the current serial port baud rate of the service system stored in the SOL control module, and configure the BMC serial port baud rate and the current serial port of the service system.
  • the baud rate is the same.
  • an interrupt controller can be disposed in the BMC, and the interrupt controller can receive an interrupt signal sent by the interrupt generating unit set in the SOL control module through a bus between the interrupt generating unit and the interrupt generating unit disposed in the SOL control module.
  • the interrupt controller can be combined with the BMC Interrupt Request (IRQ) pin to implement the interrupt signal reception and response.
  • IRQ Interrupt Request
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module, and configures the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system.
  • the BMC can obtain the current serial port baud rate of the service system stored in the SOL control module via the bus between its external memory interface (EMI) and the frequency identification unit of the SOL control module.
  • EMI external memory interface
  • the BMC After receiving the interrupt signal sent by the SOL control module, the BMC stops the current service processing and transfers to the processing operation of the interrupt signal, that is, the BMC acquires the current serial port baud rate of the service system stored in the SOL control module, and configures The serial port baud rate of the baseboard management controller is the same as the current serial port baud rate of the service system.
  • the specific implementation process of configuring the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system is common knowledge known to those skilled in the art. The embodiments of the invention are not described in detail.
  • the BMC sends a response message to the SOL control module, where the information carried by the response message is represented by
  • the BMC supports receiving service system data at the current serial port baud rate of the service system.
  • the BMC may send a response message to the SOL control module via a bus between its external memory interface (EMI) and the transmission control unit of the SOL control module, wherein the response
  • EMI external memory interface
  • the information carried in the message indicates that the BMC supports receiving service system data at the current serial port baud rate of the service system. For example, when a certain bit in the response message (which is determined by the BMC and the SOL control module) is 1 or 0, it indicates that the BMC supports receiving service system data at the current serial port baud rate of the service system, and the present invention implements
  • the examples are not specifically limited.
  • the BMC may first determine whether the hardware supports receiving the service system data at the current serial port baud rate of the service system, if the hardware thereof Support, re-configure the BMC serial port baud rate and the current serial port baud rate of the service system; otherwise, if the hardware does not support, you can send an error message to the SOL control module, indicating that the BMC does not support the current serial port in the service system.
  • the service system data is received at the baud rate, so that the SOL control module can delete the cached business system data.
  • the BMC may receive the SOL control module to send the service system data, and send the service system data to the network side.
  • the BMC can receive the service system data through the bus between the UART serial port and the serial module of the SOL control module, and send the service system data to the network side.
  • the BMC serial port baud rate is the BMC UART serial port baud rate.
  • the BMC can receive the data sent by the network side, and is controlled by the UART serial port and the SOL.
  • the bus between the serial port modules of the module sends the data sent by the network side to the SOL control module, and then the SOL control module sends the data sent by the network side to the service system through the serial port module to implement control of the service system.
  • the BMC after receiving the interrupt signal sent by the SOL control module, the BMC obtains the current serial port baud rate of the service system stored in the SOL control module, and configures the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system, and sends
  • the response message is sent to the SOL control module, and the information carried by the response message indicates that the BMC supports receiving the service system data at the current serial port baud rate of the service system, so that the BMC receives the service system data sent by the SOL control module and sends the data to the network side.
  • the technical solution can avoid the error of the service system data transmission (such as loss, garbled, etc.) caused by the BLC serial port baud rate being inconsistent with the current serial port baud rate of the service system, and greatly reducing the risk of data transmission errors of the service system.
  • the BMC receives the interrupt signal sent by the SOL control module before triggering the acquisition of the SOL control module.
  • the current serial port baud rate of the service system stored in the service system is configured, and the baud rate of the serial port is the same as the current serial port baud rate of the service system. This avoids the use of the timed polling mode to obtain the baud rate of the service system serial port and reduces the signaling resources of the BMC. waste.
  • the serial port baud rate configuration method provided by the embodiment of the present invention may include two control processes, that is, the control flow of the SOL control module described in the first embodiment, and the second embodiment.
  • the SOL control module is generally located on a logic chip, wherein the logic chip can include, but is not limited to, a Field Programmable Gate Array (FPGA) and a Complex Programmable Logic Device (Complex Programmable Logic Device). , CPLD). Therefore, the control flow of the SOL control module described in Embodiment 1 can be referred to as the control flow of the logic chip.
  • FPGA Field Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the control flow of the logic chip is triggered by the SOL control module identifying that the current serial port baud rate of the service system is inconsistent with the pre-stored service system baud rate, and the BMC control process is interrupted by the BMC receiving the SOL control module. Triggered by the signal.
  • the method of configuring the serial port baud rate provided in the embodiment of the present invention is described in detail by using a third embodiment to describe in detail how the control flow of the logic chip and the BMC control flow are closely matched. It is believed that the advantages of the serial port baud rate configuration method provided in the embodiment of the present invention will be more apparent by the description of the third embodiment.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • FIG. 4 is a flow chart of another method for configuring a serial port baud rate according to an embodiment of the present invention. As shown in FIG. 4, the method may include the following steps:
  • the SOL control module finds that the current serial port baud rate of the service system is different from the pre-stored service system serial baud rate, and the pre-stored service system serial port baud rate is updated to the current serial port baud rate of the service system.
  • the pre-stored service system serial port wave can be The rate is updated to the current serial port baud rate of the business system.
  • the SOL control module caches service system data sent by the serial port of the service system.
  • the SOL control module suspends the service system data to the BMC through the bus between its serial port module and the UART serial port of the BMC, avoiding the BMC serial port baud rate and the current business system.
  • the serial port baud rate is inconsistent and the business system data is sent (such as lost, garbled, etc.) errors.
  • the SOL control module generates an interrupt signal and sends it to the BMC, and performs step 407.
  • the SOL control module can generate an interrupt signal through its built-in interrupt generation unit, and send an interrupt signal generated by the bus between the interrupt generation unit and the BMC interrupt controller to the BMC.
  • the interrupt signal is used to trigger the BMC to obtain the current serial port baud rate of the service system stored in the SOL control module, and configure the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system.
  • the BMC receives the interrupt signal sent by the SOL control module, and obtains the current serial port baud rate of the service system stored in the SOL control module.
  • the BMC can receive an interrupt signal sent by the interrupt generating unit set in the SOL control module through the bus between the built-in interrupt controller and the interrupt generating unit provided in the SOL control module.
  • the BMC can obtain the current serial port baud rate of the service system stored in the SOL control module through the bus between its external memory interface (EMI) and the frequency identification unit of the SOL control module.
  • EMI external memory interface
  • BMC Configuration The baud rate of the BMC serial port is the same as the current serial port baud rate of the service system.
  • the BMC configuration BMC's UART serial port baud rate is consistent with the current serial port baud rate of the service system.
  • the BMC sends a response message to the SOL control module, where the information carried by the response message indicates that the BMC supports receiving service system data at a current serial port baud rate of the service system.
  • the BMC may send a response message to the SOL control module through a bus between its external memory interface (EMI) and the transmission control unit of the SOL control module, where the information carried in the response message indicates that the BMC supports
  • the service system receives the service system data at the current serial port baud rate, that is, the BMC allows the SOL control module to send the service system data to the BMC at the current serial port baud rate of the service system, which does not occur because of the BMC serial port baud rate and
  • the service system data transmission (such as loss, garbled, etc.) error caused by the inconsistent serial port baud rate of the service system.
  • the SOL control module waits to receive the response message sent by the BMC. If the response message sent by the BMC is not received, proceed to step 407, that is, continue to wait for the response sent by the receiving BMC. If the response message sent by the BMC is received, step 408 is performed.
  • the SOL control module can receive a response message sent by the BMC through a bus between its built-in transmission control unit and the external memory interface (EMI) of the BMC.
  • EMI external memory interface
  • the SOL control module determines whether the information carried in the response message indicates that the BMC supports receiving the service system data in the current serial port baud rate of the service system. If yes, step 409 is performed; if no, step 410 is performed.
  • the SOL control module sends the cached service system data to the BMC.
  • the SOL control module can send the cached service system data to the BMC through the bus between the serial port module and the UART serial port of the BMC, so that the BMC can send the service system data to the network side to implement the Monitoring of business systems.
  • the BMC can also receive the service system data through the bus between the UART serial port and the serial module of the SOL control module, and send the service system data to each side of the network.
  • the SOL control module clears the cached business system data.
  • the control flow of the logic chip is triggered by the change of the baud rate of the serial port of the service system.
  • This logic flow is understood as the change of the baud rate of the serial port of the service system from 0 to the current baud rate of the serial port of the service system.
  • Cache data that is, stop sending
  • the BMC control process is triggered by the interrupt signal. It performs operations such as obtaining the current port rate of the service system serial port, configuring the BMC serial port baud rate, sending response messages to the SOL control module, and receiving service system data.
  • the BMC serial port baud rate is inconsistent with the current serial port baud rate of the service system, and the data transmission (such as loss, garbled, etc.) of the service system is incorrect, which greatly reduces the risk of data transmission error of the service system.
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system, thereby avoiding the use of timing.
  • the polling mode obtains the baud rate of the serial port of the service system, which reduces the waste of signaling resources of the BMC.
  • the embodiment of the present invention further describes the control of the logic chip in detail in conjunction with a fourth embodiment.
  • the control flow of the logic chip (the control flow of the SOL control module), the control flow of the logic chip can implement the serial port baud rate configuration method provided in the embodiment of the present invention.
  • the control flow of the logic chip described in the fourth embodiment is performed on the platform of the Sandy Bridge 4P system.
  • the control flow of the logic chip is triggered by the SOL control module on the logic chip identifying the change of the baud rate of the service system serial port.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • FIG. 5 is a flowchart of control of a logic chip based on a Sandy Bridge 4P system according to an embodiment of the present invention. As shown in FIG. 5, the control flow of the logic chip may include the following steps:
  • the SOL control module of the logic chip identifies the serial bit rate of the service system.
  • the SOL control module does not affect the acceptance of the service system data during the process of identifying the serial port baud rate of the service system, that is, regardless of whether the service system serial port baud rate changes or not, the service system data is Will be received by the SOL Control Module.
  • the SOL control module of the logic chip compares whether the current serial port baud rate of the service system is the same as the pre-stored service system serial port baud rate. If yes, the process returns to step 501; if not, step 503 is performed.
  • the SOL control module of the logic chip reconfirms whether the baud rate of the serial port of the service system changes. If no, return to step 501; if not, perform step 504.
  • the SOL control module performs step 503 to further improve the accuracy of identifying the change of the serial port rate of the service system. That is, after identifying the change of the serial port baud rate of the service system for the first time, it needs to be confirmed on this basis to prevent identification errors.
  • the SOL control module performs the foregoing step 502, it is found that the baud rate of the service system serial port is changed from A (that is, the pre-stored service system serial port baud rate) to B (the current serial port baud rate of the service system). If the SOL control module finds that the current serial port baud rate of the service system is still B or other value in the process of performing the above step 503, it may be determined that the baud rate of the serial port of the service system changes; otherwise, if the SOL control module is executing the above In step 503, it is found that the current serial port baud rate of the service system is still A, and it can be determined that the baud rate of the serial port of the service system has not changed. 504.
  • the SOL control module of the logic chip updates the pre-stored service system serial port baud rate to the current serial port baud rate of the service system, and caches the service system data sent by the service system serial port, that is, the suspended service system data is sent to the BMC.
  • the SOL control module can pre-store the serial port baud rate of the service system that was previously recognized, and compare it with the current serial port baud rate of the service system. If the comparison result is the same, no operation is required, and the execution continues. Step 501: If the comparison result is different, immediately suspend the service system data to the BMC through the bus between the serial port module and the UART serial port of the BMC, and cache the service system data.
  • the SOL control module of the logic chip generates an interrupt signal and sends it to the BMC.
  • the SOL control module can generate an interrupt signal through its built-in interrupt generation unit, and send an interrupt signal generated by the bus between the interrupt generation unit and the BMC interrupt controller to the BMC.
  • the interrupt signal generated by the SOL control module may be a level-changing electrical signal, which is used to trigger the BMC to acquire the current serial port baud rate of the service system stored in the SOL control module, and configure the BMC serial port baud rate and The current serial port baud rate of the service system is the same.
  • the SOL control module of the logic chip waits for the response message sent by the BMC. If the response message sent by the BMC is not received, it continues to wait for the response message sent by the BMC. If the response message sent by the BMC is received, step 507 is performed.
  • the SOL control module of the logic chip determines whether the information carried in the response message indicates that the BMC supports receiving the service system data at the current serial port baud rate of the service system, and if yes, executing step 508; if not, executing step 509.
  • the SOL control module of the logic chip sends the cached service system data to the BMC.
  • the SOL control module of the logic chip discards the buffered service system data.
  • the SOL control module of the logic chip actively identifies the current serial port baud rate of the service system, and the pre-stored service system is configured when the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate.
  • the serial port baud rate is updated to the current serial port baud rate of the service system, and the service system data sent by the service system serial port is buffered, and an interrupt signal is generated and sent to the BMC, which triggers the BMC to obtain the current serial port baud rate of the service system stored in the SOL control module.
  • the SOL control module receives the BMC transmission After the response message, the BMC determines that the service system data is received at the current serial port baud rate of the service system, and the cached service system data is sent to the BMC, and the BMC sends the service system data to the network side.
  • the SOL control module of the logic chip caches the service system data sent by the serial port of the service system when the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate, that is, the service system data is temporarily sent to the service system.
  • the BMC waits for the BMC to configure the baud rate of the serial port to match the current serial baud rate of the service system, and then sends the service system data to the BMC. This prevents the BMC serial port baud rate from being inconsistent with the current serial baud rate of the service system.
  • the error of the service system data transmission (such as loss, garbled, etc.) greatly reduces the risk of data transmission errors in the business system.
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system, thereby avoiding
  • the time-based polling mode is used to obtain the baud rate of the serial port of the service system, which reduces the waste of signaling resources of the BMC.
  • the embodiment of the present invention further describes the BMC control flow in detail with a fifth embodiment, and the BMC control flow can implement the serial port baud rate configuration provided in the embodiment of the present invention.
  • the BMC control flow is implemented by software code running on the BMC.
  • the software code can include two components, one is a kernel layer interrupt response code running in the kernel layer, and the other is a user layer running at the user layer. Baud rate control code.
  • the BMC control flow is triggered by an interrupt signal sent by the SOL control module on the logic chip.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • FIG. 7a is a partial flowchart of a BMC control flow executed in a kernel layer according to an embodiment of the present invention
  • FIG. 7b is a BMC control flow according to an embodiment of the present invention. Part of the flowchart executed in the user layer.
  • the kernel layer interrupt response code execution flow in the BMC control flow may include the following steps:
  • the BMC core layer interrupt response code can provide an interrupt signal for the SOL control module of the logic chip.
  • the BMC core layer interrupt response code can acquire SOL through the bus between its external memory interface (EMI) and the frequency identification unit of the SOL control module.
  • EMI external memory interface
  • the user layer baud rate control code runs to determine whether the BMC hardware supports the current serial port baud rate of the service system, and notifies the SOL control control of the judgment result.
  • the baud rate control code of the user layer is in a sleep state, and the function of the user layer function is described in detail.
  • the BMC After the interrupt signal sent by the SOL control module reaches the BMC, the BMC generates an IRQ interrupt, the BMC stops the current service, and the kernel layer interrupt response code is transferred to the response interrupt processing operation, that is, the kernel layer interrupt response code performs the above step 701. 702.
  • the execution flow of the user layer baud rate control code can be as shown in FIG. 7b. , including the following steps:
  • step 7011 Determine whether the BMC hardware supports the current serial port baud rate of the service system. If yes, execute step 7012; if no, go to step 7014.
  • the user layer baud rate control code can determine whether the BMC hardware supports the current serial port baud rate of the service system according to the current serial port baud rate of the service system transferred from the kernel layer.
  • step 7012 Configure the baud rate of the BMC serial port and the current serial port baud rate of the service system, and go to step 7013.
  • the error message is sent to the SOL control module of the logic chip through the bus between the EMI and the transmission control unit of the SOL control module of the logic chip, indicating that the BMC does not support receiving the service system data at the current serial port baud rate of the service system.
  • the user layer baud rate control code After the execution of the above two branches, the user layer baud rate control code will enter a sleep state.
  • the BMC control flow is respectively run on the user layer and the kernel layer because the operation of the user layer is more flexible, and it is convenient to implement more additional functions, providing a basis for future expansion, and the kernel. Layers are more efficient and straightforward.
  • FIG. 7c is a flow chart of a BMC control according to an embodiment of the present invention. Among them, the BMC control flow shown in Figure 7c runs on the kernel layer. As shown in FIG. 7c, the execution flow of the user layer baud rate control code may include the following steps:
  • the kernel layer interrupt response code acquires the current serial port baud rate of the service system stored by the SOL control module of the logic chip.
  • the kernel layer interrupt response code determines whether the BMC hardware supports the current serial port baud rate of the service system. If yes, step 70113 is performed; if no, step 70115 is performed.
  • the kernel layer interrupt response code configures the BMC serial port baud rate and the current serial port baud rate of the service system, and performs step 70114.
  • the kernel layer interrupt response code sends a response message to the SOL control module of the logic chip through a bus between the EMI and the transmission control unit of the SOL control module of the logic chip, where the information carried by the response message indicates that the BMC supports the current serial port wave in the service system. Receiving business system data under special rate.
  • the kernel layer interrupt response code sends an error message to the SOL control module of the logic chip through the bus between the EMI and the transmission control unit of the SOL control module of the logic chip, indicating that the BMC does not support receiving the service at the current serial port baud rate of the service system. system data.
  • the BMC control flow is implemented in the kernel layer without the user layer baud rate control code participation. This creates an automated mode of operation with the advantage of the compactness of the entire control flow, from serial port baud rate identification to interruption, to the configuration of the BMC serial port baud rate in one go, free from outside interference.
  • FIG. 8 is a schematic structural diagram of a SOL control module according to an embodiment of the present invention, which is used to implement a serial port baud rate configuration method provided by an embodiment of the present invention.
  • the SOL control module can include:
  • the frequency identification unit 801 is configured to identify the current serial port baud rate of the service system, and compare whether the current serial port baud rate of the service system is the same as the pre-stored service system serial port baud rate. If not, the The pre-stored service system serial port baud rate is updated to the current serial port baud rate of the service system; otherwise, if the same, the frequency identification unit 801 continues to identify the current serial port baud rate of the service system, and compares the current serial port baud rate of the service system with the advance Whether the stored service system serial port baud rate is the same.
  • the data buffer unit 802 is configured to cache service system data sent by the serial port of the service system.
  • the data buffer unit 802 is configured to cache the service system data sent by the serial port of the service system when the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate.
  • the interrupt generation unit 803 is configured to generate an interrupt signal and send it to the BMC.
  • the transmission control unit 804 is configured to receive the response message sent by the BMC. If the information carried by the response message indicates that the BMC supports receiving the service system data at the current serial port baud rate of the service system, the cached service system data is sent to the BMC.
  • the response message is that the BMC receives the foregoing interrupt signal, and obtains the current serial port baud rate of the service system stored in the SOL control module, and sends the BMC serial port baud rate to be consistent with the current serial port baud rate of the service system.
  • the interrupt generation unit 802 is specifically configured to generate an interrupt signal and transmit an interrupt signal to the BMC through a bus between the interrupt generation unit 802 and the interrupt controller of the BMC.
  • the specific manner in which the transmission control unit 804 receives the response message sent by the BMC is: The transmission control unit 804 receives the response message sent by the BMC through its bus with the external memory interface (EMI) of the BMC.
  • EMI external memory interface
  • the transmission control unit 804 of the SOL control module sends the buffered service system data to the BMC in a specific manner: the transmission control unit 804 caches the bus between the serial module of the SOL control module and the UART serial port of the BMC.
  • the service system data is sent to the BMC; wherein, the BMC serial port baud rate is the BMC UART serial port baud rate.
  • the SOL control module can avoid the error of the service system data transmission (such as loss, garbled, etc.) caused by the BLC serial port baud rate and the current serial port baud rate of the service system, which greatly reduces the risk of data transmission error of the service system.
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system, thereby avoiding the BMC.
  • the time-based polling mode is used to obtain the baud rate of the serial port of the service system, which reduces the waste of signaling resources of the BMC.
  • FIG. 9 is a schematic structural diagram of a substrate management controller according to an embodiment of the present invention, which is used to implement a serial port baud rate configuration method provided by an embodiment of the present invention.
  • the substrate management controller 90 can include:
  • the interrupt controller 901 is configured to receive an interrupt signal sent by the SOL control module, where the SOL control module recognizes that the current serial port baud rate of the service system is different from the pre-stored service system serial port baud rate, and is pre-stored.
  • the service system serial port baud rate is updated after the current serial port baud rate of the service system and the service system data sent by the serial port of the service system.
  • the frequency obtaining unit 902 is configured to obtain a current serial port baud rate of the service system stored in the SOL control module.
  • the frequency configuration unit 903 is configured to configure, according to the current serial port baud rate of the service system acquired by the frequency acquiring unit 902, the baud rate of the serial port of the baseboard management controller to be consistent with the current serial port baud rate of the service system.
  • the message feedback unit 904 is configured to send a response message to the SOL control module, where the information carried by the response message indicates that the baseboard management controller supports receiving service system data at a current serial port baud rate of the service system.
  • FIG. 10 is a schematic structural diagram of another substrate management controller according to an embodiment of the present invention, which is used to implement a serial port baud rate configuration method provided by an embodiment of the present invention.
  • the baseboard management controller further includes: a determining unit 905, configured to determine whether the hardware of the baseboard management controller supports the acquisition by the frequency acquisition unit 902, based on the baseboard management controller shown in FIG.
  • the service system receives the service system data at the current serial port baud rate. If yes, the frequency configuration unit 904 is configured to configure the serial port baud rate of the baseboard management controller.
  • the frequency configuration unit 903 is specifically configured to configure the base station baud rate of the baseboard management controller to be consistent with the current serial port baud rate of the service system according to the notification of the determining unit 905 and the current serial port baud rate of the service system acquired by the frequency obtaining unit 902.
  • the baseboard management controller further includes:
  • the data sending unit 906 is configured to receive the SOL control module to send the service system data, and send the service system data to the network side.
  • the data sending unit 906 is specifically configured to receive the SOL control module sending service system by using a bus between the UART serial port of the baseboard management controller and the serial module of the SOL control module. Data, and the service system data is sent to the network side; wherein, the baseboard management controller serial port baud rate is the UART serial port baud rate of the baseboard management controller.
  • the interrupt controller 901 receives the interrupt signal sent by the SOL control module in a specific manner: the interrupt controller 901 receives the interrupt sent by the SOL control module through the bus between the interrupt controller 901 and the interrupt generation unit of the SOL control module. signal.
  • the specific manner in which the frequency obtaining unit 902 obtains the current serial port baud rate of the service system stored in the SOL control module is:
  • the frequency acquisition unit 902 acquires the current serial port baud rate of the service system stored in the SOL control module through a bus between the external memory interface (EMI) of the baseboard management controller and the frequency identification unit of the SOL control module;
  • EMI external memory interface
  • the specific manner in which the message feedback unit 904 sends the response message to the SOL control module is:
  • the message feedback unit 904 sends a response message to the SOL control through the bus between the external memory interface (EMI) of the baseboard management controller and the transmission control unit of the SOL control module. Module.
  • EMI external memory interface
  • the BMC provided above can avoid the error of the service system data transmission (such as loss, garbled, etc.) caused by the inconsistency between the serial port baud rate and the current serial port baud rate of the service system, and greatly reduce the risk of data transmission errors of the service system.
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system, thereby avoiding the BMC adoption.
  • the timed polling mode obtains the baud rate of the serial port of the service system, which reduces the waste of signaling resources of the BMC.
  • FIG. 11 is a schematic structural diagram of a serial port baud rate configuration system according to an embodiment of the present invention, which is used to implement a serial port baud rate configuration method provided by an embodiment of the present invention.
  • the serial port baud rate configuration system can include:
  • the SOL control module 1101 and the substrate management controller 1102, the SOL control module 1101 and the substrate management controller 1102 are communicably connected; wherein the structure of the SOL control module 1101 is the same as that of the SOL control module shown in FIG.
  • the structure of the substrate management controller 1102 is the same as that of the substrate management controller shown in FIG. 10, and will not be described in detail in the embodiments of the present invention.
  • the serial port baud rate configuration system can avoid the error of the service system data transmission (such as loss, garbled, etc.) caused by the BLC serial port baud rate being inconsistent with the current serial port baud rate of the service system. Greatly reduce the risk of data transmission errors in business systems.
  • the BMC obtains the current serial port baud rate of the service system stored in the SOL control module triggered by the interrupt signal sent by the SOL control module, and configures the serial port baud rate to be consistent with the current serial port baud rate of the service system, thereby avoiding the BMC.
  • the time-based polling mode is used to obtain the baud rate of the serial port of the service system, which reduces the waste of signaling resources of the BMC.
  • the SOL control module no longer passively waits for the baud rate information of the serial port of the service system to eliminate the waiting delay; 3) When the SOL control module establishes a connection with the first serial port of the service system or the baud rate of the serial port of the service system changes, the service system data is cached. Waiting for the BMC to configure its serial port baud rate to be consistent with the current serial port baud rate of the service system.
  • the BMC obtains the baud rate of the serial port of the service system and does not acquire it in the timed polling mode, which reduces the system signaling overhead.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage medium includes: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

一种串口波特率配置方法及相关设备、系统,该方法包括BMC接收SOL控制模块发送的中断信号,该中断信号是SOL控制模块识别出业务系统当前串口波特率与预先存储的业务系统串口波特率不相同,并将预先存储的业务系统串口波特率更新为业务系统当前串口波特率,以及缓存业务系统串口发送的业务系统数据之后发送的;BMC获取SOL控制模块中存储的业务系统当前串口波特率,以及配置BMC串口波特率与业务系统当前串口波特率一致;BMC发送响应消息至SOL控制模块,该响应消息携带的信息表示BMC支持在业务系统当前串口波特率下接收业务系统数据。本发明实施例可以降低业务系统数据发送错误的风险,减少BMC信令资源的浪费。

Description

一种串口波特率配置方法及相关设备、 系统 技术领域
本发明涉及计算机领域, 尤其涉及一种串口波特率配置方法及相关设备、 系统。
背景技术
在计算机中, 业务系统的数据传输过程普遍如下: 业务系统的数据先通过 串口发送给串口网络重定向 (Serial Over LAN, SOL )控制模块, 再由 SOL 控制模块通过串口将接收到的数据发送至基板管理控制器 (Baseboard Management Controller , BMC ) , 最后由 BMC将接收到的数据发送至网络侧。
图 1为现有的业务系统数据传输过程的示意图。如图 1所示, 业务系统数 据通过业务系统串口发送给 SOL控制模块的串口模块, 再由 SOL控制模块的 串口模块将接收到的业务系统数据发送至 BMC 的通用异步收发(Universal Asynchronous Receiver/Transmitter , UART ) 串口, 最后由 BMC将接收到的业 务系统数据发送至网络侧。在图 1所示的传输过程中, 业务系统串口波特率变 化时,业务系统将其串口波特率写入 SOL控制模块的串口参数寄存器,而 BMC 通过其外部存储器接口( External Memory Interface, EMI )可以查询 SOL控制 模块的串口参数寄存器, 从而获得业务系统的串口波特率, 并配置 BMC串口 波特率与业务系统的串口波特率一致, 避免了 BMC串口波特率与业务系统的 串口波特率不一致而导致的业务系统数据发送错误。
实践中发现, 业务系统主动将其串口波特率写入 SOL控制模块的串口参 数寄存器后, 并没有等待 BMC对其串口波特率作出响应, 而是继续的发送数 据, 加大了数据发送错误(如数据丟失、 乱码等) 的风险。 另外, BMC通过 其 EMI查询 SOL控制模块的串口参数寄存器时普遍采用定时轮询方式进行查 询, 浪费了 BMC信令资源。
发明内容
本发明实施例提供一种串口波特率配置方法及相关设备、 系统, 用于降低 业务系统数据发送错误的风险, 减少 BMC信令资源的浪费。 一种串口波特率配置方法, 包括:
串口网络重定向 SOL控制模块识别业务系统当前串口波特率, 并比较所 述业务系统当前串口波特率与预先存储的业务系统串口波特率是否相同,若不 相同,则将所述预先存储的业务系统串口波特率更新为所述业务系统当前串口 波特率;
所述 SOL控制模块緩存所述业务系统串口发送的业务系统数据; 所述 SOL控制模块产生中断信号并发送至基板管理控制器, 以及接收所 述基板管理控制器发送的响应消息;若所述响应消息携带的信息表示所述基板 管理控制器支持在所述业务系统当前串口波特率下接收业务系统数据,则所述 SOL控制模块将緩存的所述业务系统数据发送给所述基板管理控制器; 所述 响应消息是所述基板管理控制器接收到所述中断信号, 并获取所述 SOL控制 模块中存储的所述业务系统当前串口波特率,以及配置所述基板管理控制器串 口波特率与所述业务系统当前串口波特率一致之后发送的。
一种串口波特率配置方法, 包括:
基板管理控制器接收串口网络重定向 SOL控制模块发送的中断信号, 所 述中断信号是所述 SOL控制模块识别出业务系统当前串口波特率与预先存储 的业务系统串口波特率不相同,并将所述预先存储的业务系统串口波特率更新 为所述业务系统当前串口波特率,以及緩存所述业务系统串口发送的业务系统 数据之后发送的;
所述基板管理控制器获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率,以及配置所述基板管理控制器串口波特率与所述业务系统当前串 口波特率一致;
所述基板管理控制器发送响应消息至所述 SOL控制模块, 所述响应消息 携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波特率下 接收业务系统数据。
一种 SOL控制模块, 包括:
频率识别单元, 用于识别业务系统当前串口波特率, 并比较所述业务系统 当前串口波特率与预先存储的业务系统串口波特率是否相同, 若不相同, 则将 所述预先存储的业务系统串口波特率更新为所述业务系统当前串口波特率; 数据緩存单元, 用于緩存所述业务系统串口发送的业务系统数据; 中断发生单元, 用于产生中断信号并发送至基板管理控制器;
传输控制单元, 用于接收所述基板管理控制器发送的响应消息; 若所述响 应消息携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波 特率下接收业务系统数据,则将緩存的所述业务系统数据发送给所述基板管理 控制器; 所述响应消息是所述基板管理控制器接收到所述中断信号, 并获取所 述 SOL控制模块中存储的所述业务系统当前串口波特率, 以及配置所述基板 管理控制器串口波特率与所述业务系统当前串口波特率一致之后发送的。
一种基板管理控制器, 包括:
中断控制器, 用于接收 SOL控制模块发送的中断信号, 所述中断信号是 所述 SOL控制模块识别出业务系统当前串口波特率与预先存储的业务系统串 口波特率不相同,并将所述预先存储的业务系统串口波特率更新为所述业务系 统当前串口波特率,以及緩存所述业务系统串口发送的业务系统数据之后发送 的;
频率获取单元, 用于获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率;
频率配置单元,用于根据所述频率获取单元获取的所述业务系统当前串口 波特率,配置所述基板管理控制器串口波特率与所述业务系统当前串口波特率 一致;
消息反馈单元, 用于发送响应消息至所述 SOL控制模块, 所述响应消息 携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波特率下 接收业务系统数据。
一种串口波特率配置系统, 包括:
SOL控制模块和基板管理控制器, 所述 SOL控制模块和所述基板管理控 制器之间以可通信方式连接;
所述 SOL控制模块, 包括:
频率识别单元, 用于识别业务系统当前串口波特率, 并比较所述业务系统 当前串口波特率与预先存储的业务系统串口波特率是否相同, 若不相同, 则将 所述预先存储的业务系统串口波特率更新为所述业务系统当前串口波特率; 数据緩存单元, 用于緩存所述业务系统串口发送的业务系统数据; 中断发生单元, 用于产生中断信号并发送至所述基板管理控制器; 传输控制单元, 用于接收所述基板管理控制器发送的响应消息; 若所述响 应消息携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波 特率下接收业务系统数据,则将緩存的所述业务系统数据发送给所述基板管理 控制器;
所述基板管理控制器, 包括:
中断控制器, 用于接收所述 SOL控制模块发送的中断信号;
频率获取单元, 用于获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率;
频率配置单元,用于根据所述频率获取单元获取的所述业务系统当前串口 波特率,配置所述基板管理控制器串口波特率与所述业务系统当前串口波特率 一致;
消息反馈单元, 用于发送响应消息至所述 SOL控制模块, 所述响应消息 携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波特率下 接收业务系统数据。
本发明实施例提供的上述方案中,可以避免基板管理控制器串口波特率与 业务系统的当前串口波特率不一致而导致的业务系统数据发送(如丟失、乱码 等)错误, 大大降低业务系统数据发送错误的风险。 另外, 基板管理控制器在 SOL控制模块发送的中断信号触发下才获取 SOL控制模块中存储的业务系统 当前串口波特率, 并配置其串口波特率与业务系统当前串口波特率一致,避免 了采用定时轮询方式获取业务系统串口波特率,减少了基板管理控制器的信令 资源浪费。
附图说明
为了更清楚地说明本发明实施例和现有技术中的技术方案,下面将对实施 例中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是 本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的 前提下, 还可以根据这些附图获得其他的附图。
图 1为现有的业务系统数据传输过程的示意图;
图 2为本发明实施例提供的串口波特率配置方法的实施例一的流程图; 图 3为本发明实施例提供的串口波特率配置方法的实施例二的流程图; 图 4为本发明实施例提供的串口波特率配置方法的实施例三的流程图; 图 5为本发明实施例提供的基于 Sandy Bridge 4P系统的串口波特率配置 方法的实施例四的流程图;
图 6为本发明实施例提供的一种中断消息的电平示意图;
图 7a为本发明实施例提供的一种 BMC控制流程在内核层中执行的部分 流程图;
图 7b为本发明实施例提供的一种 BMC控制流程在用户层中执行的部分 流程图;
图 7c为本发明实施例提供的一种 BMC控制流程全部在内核层运行的流 程图;
图 8为本发明实施例提供的一种 SOL控制模块的结构示意图;
图 9~图 10为本发明实施例提供的一种 BMC的结构示意图;
图 11为本发明实施例提供的一种串口波特率配置系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提供的一种串口波特率配置方法及相关设备、 系统, 可以降 低业务系统数据发送错误的风险, 减少 BMC信令资源的浪费。 以下分别进行 详细说明。
实施例一:
请参阅图 2, 图 2为本发明实施例提供的一种串口波特率配置方法的流程 图。 如图 2所示, 该方法可以包括以下步骤:
201、 SOL控制模块识别业务系统当前串口波特率。
一个实施例中, SOL控制模块内可以设置一频率识别单元, 该频率识别 单元可以用于识别业务系统当前串口波特率。
其中,频率识别单元识别业务系统当前串口波特率的具体实现过程是一种 成熟的现有技术,属于本领域普通技术人员所公知的常识, 本发明实施例不作 详细介绍。
202、 SOL控制模块比较业务系统当前串口波特率与预先存储的业务系统 串口波特率是否相同, 若不相同, 则执行步骤 203; 若相同, 则重新执行步骤 201。
一个实施例中, SOL控制模块内设置的频率识别单元在识别出业务系统 当前串口波特率后,可以比较业务系统当前串口波特率与频率识别单元预先存 储的业务系统串口波特率是否相同。
其中,频率识别单元在识别业务系统当前串口波特率, 并比较业务系统当 前串口波特率与频率识别单元预先存储的业务系统串口波特率是否相同的过 程中, 不影响 SOL控制模块通过其串口模块接收业务系统串口发送的业务系 统数据的操作, 即无论业务系统串口波特率变化与否, SOL控制模块都正常 通过串口模块接收业务系统串口发送的业务系统数据。
本发明实施例中, SOL控制模块的串口模块与业务系统串口之间首次建 立串口连接时,业务系统串口波特率可以看作由 0到业务系统当前串口波特率 的变化。
203、 SOL控制模块将预先存储的业务系统串口波特率更新为业务系统当 前串口波特率, 緩存业务系统串口发送的业务系统数据。
一个实施例中, SOL控制模块内可以设置一数据緩存单元, SOL控制模 块在比较出业务系统当前串口波特率与预先存储的业务系统串口波特率不相 同时, 可以将预先存储的业务系统串口波特率更新为业务系统当前串口波特 率, 以及利用该数据緩存单元緩存业务系统串口发送的业务系统数据,也就是 说 SOL控制模块暂停将接收到的业务系统数据通过其串口模块与 BMC 的 UART串口之间的总线发送至 BMC, 避免 BMC串口波特率 (即 UART串口 波特率)与业务系统当前串口波特率不一致而导致业务系统数据接收错误 (如 丟失、 乱码等)。
204、 SOL控制模块产生中断信号并发送至 BMC。
一个实施例中, SOL控制模块内可以设置一中断发生单元, 该中断发生 单元用于产生中断信号, 并通过该中断发生单元与 BMC的中断控制器之间的 总线将产生的中断信号发送至 BMC。 其中, 该中断信号用于触发 BMC获取 SOL控制模块中存储的业务系统当前串口波特率,并配置 BMC串口波特率与 业务系统当前串口波特率一致。
205、 SOL控制模块接收 BMC发送的响应消息, 并判断该响应消息携带 的信息是否表示 BMC支持在业务系统当前串口波特率下接收业务系统数据, 若是, 则执行步骤 206; 若否, 则执行步骤 207。
一个实施例中, SOL控制模块内可以设置一传输控制单元, 该传输控制 单元用于接收 BMC发送的响应消息, 并判断该响应消息携带的信息是否表示 BMC支持在业务系统当前串口波特率下接收业务系统数据。
一个实施例中, SOL控制模块内设置的传输控制单元可以通过该传输控 制单元与 BMC的外部存储器接口 (EMI )之间的总线接收 BMC发送的响应 消息。 其中, 上述的响应消息是 BMC接收到上述中断信号, 并获取 SOL控制 模块中存储的业务系统当前串口波特率, 以及配置 BMC串口波特率与业务系 统当前串口波特率一致之后发送的。
一个实施例中, BMC接收到上述中断信号后, 可以通过其外部存储器接 口 (EMI )获取 SOL控制模块中存储的业务系统当前串口波特率。
206、 SOL控制模块将緩存的业务系统数据发送给 BMC。
其中, SOL控制模块接收到 BMC发送的响应消息, 并根据该响应消息携 带的信息判断出 BMC支持在业务系统当前串口波特率下接收业务系统数据之 后,可以将緩存的业务系统数据通过其串口模块与 BMC的 UART串口之间的 总线发送至 BMC, 由 BMC将该业务系统数据发送至网络侧, 以实现对业务 系统的监测。 其中, BMC串口波特率即为 BMC的 UART串口波特率。
207、 SOL控制模块清除緩存的业务系统数据。
一个实施例中, SOL控制模块根据 BMC发送的响应消息携带的信息判断 出 BMC 不支持在业务系统当前串口波特率下接收业务系统数据时, 可以由 SOL控制模块内设置的传输控制单元清除 SOL控制模块緩存的业务系统数 据, 从而避免了在 BMC不支持在业务系统当前串口波特率下接收业务系统数 据时, 仍将业务系统数据发送至 BMC而导致业务系统数据接收错误。
本实施例中, SOL控制模块主动地识别业务系统当前串口波特率, 在业 务系统当前串口波特率与预先存储的业务系统串口波特率不相同时,将预先存 储的业务系统串口波特率更新为业务系统当前串口波特率,并緩存业务系统串 口发送的业务系统数据,以及产生中断信号发送至 BMC,触发 BMC获取 SOL 控制模块中存储的业务系统当前串口波特率, 并配置 BMC串口波特率与业务 系统当前串口波特率一致; SOL控制模块接收 BMC发送的响应消息后, 确 定 BMC支持在业务系统当前串口波特率下接收业务系统数据, 将緩存的业务 系统数据发送给 BMC, 由 BMC将该业务系统数据发送至网络侧。 其中, SOL 控制模块在判断出业务系统当前串口波特率与预先存储的业务系统串口波特 率不相同时,緩存业务系统串口发送的业务系统数据, 即暂停将业务系统数据 发送至 BMC, 等待 BMC配置其串口波特率与业务系统当前串口波特率一致 之后, 再将业务系统数据发送至 BMC, 避免了 BMC 串口波特率与业务系统 的当前串口波特率不一致而导致的业务系统数据发送(如丟失、乱码等)错误, 大大降低业务系统数据发送错误的风险。 另外, BMC在 SOL控制模块发送的 中断信号触发下才获取 SOL控制模块中存储的业务系统当前串口波特率, 并 配置其串口波特率与业务系统当前串口波特率一致,避免了采用定时轮询方式 获取业务系统串口波特率, 减少了 BMC的信令资源浪费。
实施例二:
上述的实施例一从 SOL控制模块一侧详细描述了本发明实施例提供的串 口波特率配置方法, 下面进一步从 BMC一侧详细描述了本发明实施例提供的 串口波特率配置方法。 请参阅图 3, 图 3为本发明实施例提供的另一种串口波 特率配置方法的流程图。 如图 3所示, 该方法可以包括以下步骤:
301、 BMC接收 SOL控制模块发送的中断信号。
其中, 该中断信号是 SOL控制模块识别出业务系统当前串口波特率与预 先存储的业务系统串口波特率不相同,并将预先存储的业务系统串口波特率更 新为业务系统当前串口波特率,以及緩存业务系统串口发送的业务系统数据之 后发送的,该中断信号用于触发 BMC获取 SOL控制模块中存储的业务系统当 前串口波特率, 并配置 BMC串口波特率与业务系统当前串口波特率一致。
一个实施例中, BMC 内可以设置一中断控制器, 该中断控制器可以通过 其与 SOL控制模块内设置的中断发生单元之间的总线接收 SOL控制模块内设 置的中断发生单元发送的中断信号。
实际应用中, 中断控制器可以结合 BMC的中断请求( Interrupt Request , IRQ ) 引脚, 从而实现中断信号的接收以及响应。
302、 BMC获取 SOL控制模块中存储的业务系统当前串口波特率, 以及 配置 BMC串口波特率与业务系统当前串口波特率一致。
一个实施例中, BMC可以通过其外部存储器接口 (EMI )与 SOL控制模 块的频率识别单元之间的总线获取 SOL控制模块中存储的业务系统当前串口 波特率。
其中, BMC在接收到 SOL控制模块发送的中断信号后, 停止当前业务处 理,转入响应所述中断信号的处理操作, 即 BMC获取 SOL控制模块中存储的 业务系统当前串口波特率,以及配置基板管理控制器串口波特率与业务系统当 前串口波特率一致。
其中, BMC获取 SOL控制模块中存储的业务系统当前串口波特率后, 配 置 BMC串口波特率与业务系统当前串口波特率一致的具体实现过程是本领域 普通技术人员所公知的常识, 本发明实施例不作详细介绍。
303、 BMC发送响应消息至 SOL控制模块, 该响应消息携带的信息表示
BMC支持在业务系统当前串口波特率下接收业务系统数据。
一个实施例中, BMC可以通过其外部存储器接口 (EMI )与 SOL控制模 块的传输控制单元之间的总线发送响应消息至 SOL控制模块, 其中, 该响应 消息中携带的信息表示 BMC支持在业务系统当前串口波特率下接收业务系统 数据。 例如, 该响应消息中的某一比特位(该比特位由 BMC与 SOL控制模块 协商决定)为 1或 0时, 表示 BMC支持在业务系统当前串口波特率下接收业 务系统数据, 本发明实施例不作具体限定。
一个实施例中,上述步骤 302中 BMC获取 SOL控制模块中存储的业务系 统当前串口波特率之后,可以先判断其硬件是否支持在业务系统当前串口波特 率下接收业务系统数据, 若其硬件支持, 再行的配置 BMC串口波特率与业务 系统当前串口波特率一致的步骤; 反之, 若其硬件不支持, 则可以发送错误消 息至 SOL控制模块,表示 BMC不支持在业务系统当前串口波特率下接收业务 系统数据, 使 SOL控制模块可以删除緩存的业务系统数据。
一个实施例中, BMC响应消息至 SOL控制模块之后, 可以接收 SOL控 制模块发送业务系统数据, 并将该业务系统数据发送至网络侧。 其中, BMC 可以通过其 UART串口与 SOL控制模块的串行模块之间的总线接收 SOL控制 模块发送业务系统数据, 并将该业务系统数据发送至网络侧。 如前面所述的, BMC串口波特率即为 BMC的 UART串口波特率。
进一步地, 本发明实施例中 BMC配置 BMC串口波特率 (即 UART串口 波特率)与业务系统串口波特率一致后, BMC可以接收网络侧发送的数据, 并通过其 UART串口与 SOL控制模块的串口模块之间的总线将网络侧发送的 数据发送至 SOL控制模块, 再由 SOL控制模块将网络侧发送的数据通过其串 口模块发送至业务系统, 以实现对业务系统的控制。
本实施例中, BMC接收 SOL控制模块发送的中断信号后, 获取 SOL控 制模块中存储的业务系统当前串口波特率, 并配置 BMC串口波特率与业务系 统当前串口波特率一致, 以及发送响应消息至 SOL控制模块, 该响应消息携 带的信息表示 BMC支持在业务系统当前串口波特率下接收业务系统数据, 以 使 BMC接收 SOL控制模块发送的业务系统数据并发送至网络侧。该技术方案 可以避免 BMC串口波特率与业务系统当前串口波特率不一致而导致的业务系 统数据发送(如丟失、乱码等)错误, 大大降低业务系统数据发送错误的风险。 另外, BMC接收 SOL控制模块发送的中断信号后才触发获取 SOL控制模块 中存储的业务系统当前串口波特率,并配置其串口波特率与业务系统当前串口 波特率一致,避免了采用定时轮询方式获取业务系统串口波特率,减少了 BMC 的信令资源浪费。
通过上述实施例一、 实施例二的描述可知, 本发明实施例提供的串口波特 率配置方法可以包括两部控制流程, 即包括实施例一所描述的 SOL控制模块 的控制流程以及实施例二所描述的 BMC控制流程。 而实际应用中, SOL控制 模块一般位于逻辑芯片上, 其中,逻辑芯片可以包括但不限于现场可编程门阵 歹 'J ( Field Programmable Gate Array, FPGA )和复杂可编程逻辑器件(Complex Programmable Logic Device, CPLD )。 因此, 实施例一所描述的 SOL控制模块 的控制流程又可以称为逻辑芯片的控制流程。其中,逻辑芯片的控制流程是由 SOL控制模块识别出业务系统当前串口波特率与预先存储的业务系统波特率 不一致而触发的, 而 BMC控制流程是由 BMC接收到 SOL控制模块发送的中 断信号而触发的。下面再通过一个实施例三来详细地描述逻辑芯片的控制流程 和 BMC控制流程之间是如何密切地配合, 从而实现本发明实施例中提供的串 口波特率配置方法的。相信通过实施例三的描述, 本发明实施例中提供的串口 波特率配置方法所具有的优点将更加明显。
实施例三:
请参阅图 4, 图 4为本发明实施例提供的另一种串口波特率配置方法的流 程图。 如图 4所示, 该方法可以包括以下步骤:
401、 SOL控制模块发现业务系统当前串口波特率与预先存储的业务系统 串口波特率不相同,将预先存储的业务系统串口波特率更新为业务系统当前串 口波特率。
具体来说, SOL控制模块识别业务系统当前串口波特率后, 若比较出业 务系统当前串口波特率与预先存储的业务系统串口波特率不相同,则可以将预 先存储的业务系统串口波特率更新为业务系统当前串口波特率。
402、 SOL控制模块緩存业务系统串口发送的业务系统数据。
也即是说, SOL控制模块暂停通过其串口模块与 BMC的 UART串口之间 的总线将业务系统数据发送给 BMC, 避免 BMC 串口波特率与业务系统当前 串口波特率不一致而导致业务系统数据发送(如丟失、 乱码等)错误。
403、 SOL控制模块产生中断信号并发送至 BMC, 以及执行步骤 407。 如前面实施例所述, SOL控制模块可以通过其内置的中断发生单元产生 中断信号, 并通过该中断发生单元与 BMC的中断控制器之间的总线将产生的 中断信号发送至 BMC。 其中, 该中断信号用于触发 BMC获取 SOL控制模块 中存储的业务系统当前串口波特率, 并配置 BMC串口波特率与业务系统当前 串口波特率一致。
404、 BMC接收 SOL控制模块发送的中断信号, 获取 SOL控制模块中存 储的业务系统当前串口波特率。
如前面实施例所述, BMC可以通过其内置的中断控制器与 SOL控制模块 内设置的中断发生单元之间的总线接收 SOL控制模块内设置的中断发生单元 发送的中断信号。
如前面实施例所述, BMC可以通过其外部存储器接口 (EMI )与 SOL控 制模块的频率识别单元之间的总线获取 SOL控制模块中存储的业务系统当前 串口波特率。
405、 BMC配置 BMC串口波特率与业务系统当前串口波特率一致。
也即是说, BMC配置 BMC的 UART串口波特率与业务系统当前串口波 特率一致。
406、 BMC发送响应消息至 SOL控制模块, 该响应消息携带的信息表示 BMC支持在业务系统当前串口波特率下接收业务系统数据。
如前面实施例所述, BMC可以通过其外部存储器接口 (EMI )与 SOL控 制模块的传输控制单元之间的总线发送响应消息至 SOL控制模块, 其中, 该 响应消息中携带的信息表示 BMC支持在业务系统当前串口波特率下接收业务 系统数据, 也即是说, BMC允许 SOL控制模块在业务系统当前串口波特率下 将业务系统数据发送至 BMC, 不会出现因为 BMC 串口波特率与业务系统当 前串口波特率不一致而导致的业务系统数据发送(如丟失、 乱码等)错误。
407、 SOL控制模块等待接收 BMC发送的响应消息, 如果未接收到 BMC 发送的响应消息, 则继续执行步骤 407, 即继续等待接收 BMC发送的响应消 息; 如果接收到 BMC发送的响应消息, 则执行步骤 408。
如前面实施例所述, SOL控制模块可以通过其内置的传输控制单元与 BMC的外部存储器接口 ( EMI )之间的总线接收 BMC发送的响应消息。
408、 SOL控制模块判断该响应消息携带的信息是否表示 BMC支持在业 务系统当前串口波特率下接收业务系统数据, 若是, 则执行步骤 409; 若否, 则执行步骤 410。
409、 SOL控制模块将緩存的业务系统数据发送给 BMC。
如前面实施例所述, SOL控制模块可以将緩存的业务系统数据通过其串 口模块与 BMC的 UART串口之间的总线发送至 BMC,使 BMC可以将该业务 系统数据发送至网络侧, 以实现对业务系统的监测。
相应地, BMC还可以通过其 UART串口与 SOL控制模块的串行模块之间 的总线接收 SOL控制模块发送业务系统数据, 并将该业务系统数据发送至网 各側。
410、 SOL控制模块清除緩存的业务系统数据。
可见,逻辑芯片的控制流程由业务系统串口波特率发生变化触发(首次建 立连接时本逻辑流程中理解为业务系统串口波特率由 0 到业务系统串口当前 波特率的变化), 先后经过緩存数据(即停止发送)、 生成中断、 等待 BMC响 应消息、 判断 BMC是否支持业务系统串口当前波特率、 恢复数据发送等几个 步骤。 而 BMC控制流程由中断信号触发, 先后执行获取业务系统串口当前波 特率、配置 BMC串口波特率、发送响应消息至 SOL控制模块以及接收业务系 统数据等操作。
本实施例可以避免 BMC串口波特率与业务系统的当前串口波特率不一致 而导致的业务系统数据发送(如丟失、 乱码等)错误, 大大降低业务系统数据 发送错误的风险。 另外, BMC在 SOL控制模块发送的中断信号触发下才获取 SOL控制模块中存储的业务系统当前串口波特率, 并配置其串口波特率与业 务系统当前串口波特率一致,避免了采用定时轮询方式获取业务系统串口波特 率, 减少了 BMC的信令资源浪费。
下面,本发明实施例进一步结合一个实施例四来详细描述逻辑芯片的控制 流程 (即 SOL控制模块的控制流程 ), 该逻辑芯片的控制流程可以实现本发明 实施例中提供的串口波特率配置方法。其中, 实施例四所描述的逻辑芯片的控 制流程是以 Sandy Bridge 4P系统为平台进行的。 在实施例四中, 逻辑芯片的 控制流程是由逻辑芯片上的 SOL控制模块识别出业务系统串口波特率发送变 化而触发的。
实施例四:
请参阅图 5,图 5为本发明实施例提供的一种基于 Sandy Bridge 4P系统的 逻辑芯片的控制流程图。如图 5所示, 该逻辑芯片的控制流程可以包括以下步 骤:
501、 逻辑芯片的 SOL控制模块识别业务系统串口比特率。
目前, 串口波特率识别技术比较成熟, SOL控制模块识别业务系统串口 波特率的过程中, 不影响业务系统数据的接受操作, 即无论业务系统串口波特 率变化与否, 业务系统数据都将被 SOL控制模块接收。
502、逻辑芯片的 SOL控制模块比较业务系统当前串口波特率与预先存储 的业务系统串口波特率是否相同, 如果相同, 则返回步骤 501; 如果不相同, 则执行步骤 503。
503、逻辑芯片的 SOL控制模块再次确认业务系统串口波特率是否发生变 化, 如果否, 则返回步骤 501; 如果不相同, 则执行步骤 504。
其中, SOL控制模块执行步骤 503可以进一步提高识别业务系统串口波 特率变化的准确性。 即在首次识别出业务系统串口波特率变化后, 需要在此基 础上加以确认, 防止识别错误。
举例来说, 如果 SOL控制模块在执行上述步骤 502的过程中首次发现业 务系统串口波特率由 A (即预先存储的业务系统串口波特率)变化至 B (业务 系统当前串口波特率 ),则如果 SOL控制模块在执行上述步骤 503的过程中发 现业务系统当前串口波特率仍然为 B 或其他数值, 则可以确定业务系统串口 波特率发生变化; 反之, 如果 SOL控制模块在执行上述的步骤 503时发现业 务系统当前串口波特率仍然为 A,则可以确定业务系统串口波特率没有发生变 化。 504、逻辑芯片的 SOL控制模块将预先存储的业务系统串口波特率更新为 业务系统当前串口波特率,緩存业务系统串口发送的业务系统数据, 即暂停业 务系统数据发送至 BMC。
本实施例中, SOL控制模块可以对前一次识别到的业务系统串口波特率 进行预先存储,并用于和业务系统当前串口波特率进行比较,若比较结果相同, 则无需任何操作, 继续执行步骤 501; 如果比较结果不相同, 则立即暂停通过 其串口模块与 BMC的 UART串口之间的总线将业务系统数据发送至 BMC, 将业务系统数据进行緩存。
505、 逻辑芯片的 SOL控制模块产生中断信号并发送至 BMC。
实际应用中, SOL控制模块可以通过其内置的中断发生单元产生中断信 号, 并通过该中断发生单元与 BMC的中断控制器之间的总线将产生的中断信 号发送至 BMC。 如图 6所示, SOL控制模块产生的中断信号可以是一个电平 变化的电信号,用于触发 BMC获取 SOL控制模块中存储的业务系统当前串口 波特率, 并配置 BMC串口波特率与业务系统当前串口波特率一致。
506、 逻辑芯片的 SOL控制模块等待 BMC发送的响应消息, 如果未接收 到 BMC发送的响应消息, 则继续等待接收 BMC发送的响应消息; 如果接收 到 BMC发送的响应消息, 则执行步骤 507。
507、逻辑芯片的 SOL控制模块判断该响应消息携带的信息是否表示 BMC 支持在业务系统当前串口波特率下接收业务系统数据,若是,则执行步骤 508; 若否, 则执行步骤 509。
508、 逻辑芯片的 SOL控制模块将緩存的业务系统数据发送给 BMC。
509、 逻辑芯片的 SOL控制模块将緩沖的业务系统数据做丟弃处理。
本实施例中, 逻辑芯片的 SOL控制模块主动地识别业务系统当前串口波 特率, 在业务系统当前串口波特率与预先存储的业务系统串口波特率不相同 时,将预先存储的业务系统串口波特率更新为业务系统当前串口波特率, 并緩 存业务系统串口发送的业务系统数据, 以及产生中断信号发送至 BMC, 触发 BMC获取 SOL控制模块中存储的业务系统当前串口波特率, 并配置 BMC串 口波特率与业务系统当前串口波特率一致; SOL控制模块接收 BMC发送的 响应消息后,确定 BMC支持在业务系统当前串口波特率下接收业务系统数据, 将緩存的业务系统数据发送给 BMC, 由 BMC将该业务系统数据发送至网络 侧。 其中, 逻辑芯片的 SOL控制模块在判断出业务系统当前串口波特率与预 先存储的业务系统串口波特率不相同时,緩存业务系统串口发送的业务系统数 据, 即暂停将业务系统数据发送至 BMC, 等待 BMC配置其串口波特率与业 务系统当前串口波特率一致之后, 再将业务系统数据发送至 BMC, 避免了 BMC 串口波特率与业务系统的当前串口波特率不一致而导致的业务系统数据 发送(如丟失、乱码等)错误, 大大降低业务系统数据发送错误的风险。 另夕卜, BMC在 SOL控制模块发送的中断信号触发下才获取 SOL控制模块中存储的 业务系统当前串口波特率,并配置其串口波特率与业务系统当前串口波特率一 致, 避免了采用定时轮询方式获取业务系统串口波特率, 减少了 BMC的信令 资源浪费。
对应于上述实施例四所描述的逻辑芯片的控制流程,本发明实施例进一步 结合一个实施例五来详细描述 BMC控制流程, 该 BMC控制流程可以实现本 发明实施例中提供的串口波特率配置方法。 其中, BMC控制流程是由运行在 BMC上的软件代码来实现的, 该软件代码可以包括两个组成部分, 一是运行 在内核层的内核层中断响应代码, 一是运行在用户层的用户层波特率控制代 码。 在实施例五中, BMC控制流程是由逻辑芯片上的 SOL控制模块发送的中 断信号触发的。
实施例五:
请一并参阅图 7a和图 7b, 图 7a为本发明实施例提供的一种 BMC控制流 程在内核层中执行的部分流程图, 而图 7b 为本发明实施例提供的一种 BMC 控制流程在用户层中执行的部分流程图。 如图 7a所示, 该 BMC控制流程中 内核层中断响应代码执行流程可以包括以下步骤:
701、 获取逻辑芯片的 SOL控制模块存储的业务系统当前串口波特率。 其中, BMC内核层中断响应代码可以为逻辑芯片的 SOL控制模块发送的 中断信号提供服务。一个实施例中, BMC内核层中断响应代码可以通过其外 部存储器接口 (EMI )与 SOL控制模块的频率识别单元之间的总线获取 SOL 控制模块中存储的业务系统当前串口波特率。
702、 唤醒用户层波特率控制代码。
其中, 内核层中断响应代码唤醒用户层波特率控制代码后, 由用户层波特 率控制代码运行判断 BMC硬件是否支持业务系统当前串口波特率, 并将判断 结果通知 SOL控制控制。
实际应用中,为了降低系统运行开销,在业务系统串口波特率没有变化时, 该用户层波特率控制代码处于睡眠状态, 详细可见用户层函数功能介绍。
本实施例中, SOL控制模块发送的中断信号到达 BMC后, BMC产生 IRQ 中断, BMC停止当前业务, 内核层中断响应代码转入响应的中断处理操作, 即内核层中断响应代码执行上述步骤 701、 702。
当内核层中断响应代码获取逻辑芯片的 SOL控制模块存储的业务系统当 前串口波特率, 并唤醒用户层波特率控制代码后, 用户层波特率控制代码的执 行流程可以如图 7b所示, 包括以下步骤:
7011、 判断 BMC硬件是否支持业务系统当前串口波特率, 如果是, 则执 行步骤 7012; 如果否, 则执行步骤 7014。
本实施例中,用户层波特率控制代码可以根据内核层转移过来的业务系统 当前串口波特率, 判断 BMC硬件是否支持该业务系统当前串口波特率。
7012、 配置 BMC 串口波特率与业务系统当前串口波特率, 并执行步骤 7013。
7013、 通过 EMI与逻辑芯片的 SOL控制模块的传输控制单元之间的总线 发送响应消息至逻辑芯片的 SOL控制模块,该响应消息携带的信息表示 BMC 支持在业务系统当前串口波特率下接收业务系统数据。
7014、 通过 EMI与逻辑芯片的 SOL控制模块的传输控制单元之间的总线 发送错误消息至逻辑芯片的 SOL控制模块,表示 BMC不支持在业务系统当前 串口波特率下接收业务系统数据。
其中, 上述两个分支执行完后, 用户层波特率控制代码将进入睡眠状态。 本实施例中, 将 BMC控制流程分别运行于用户层和内核层是因为用户层 的操作更加灵活, 方便实现更多的附加功能, 为以后的扩展提供基础, 而内核 层则更加高效、 直接。
当然, 为追求更高效的 BMC控制流程, 也可以将 BMC控制流程全部运 行于内核层。 请参阅图 7c, 图 7c为本发明实施例中提供的一种 BMC控制流 程图。 其中, 图 7c所示的 BMC控制流程全部运行于内核层。 如图 7c所示, 该用户层波特率控制代码的执行流程可以包括以下步骤:
70111、 内核层中断响应代码获取逻辑芯片的 SOL控制模块存储的业务系 统当前串口波特率。
70112、 内核层中断响应代码判断 BMC硬件是否支持业务系统当前串口 波特率, 如果是, 则执行步骤 70113; 如果否, 则执行步骤 70115。
70113、 内核层中断响应代码配置 BMC 串口波特率与业务系统当前串口 波特率, 并执行步骤 70114。
70114、 内核层中断响应代码通过 EMI与逻辑芯片的 SOL控制模块的传 输控制单元之间的总线发送响应消息至逻辑芯片的 SOL控制模块, 该响应消 息携带的信息表示 BMC 支持在业务系统当前串口波特率下接收业务系统数 据。
70115、 内核层中断响应代码通过 EMI与逻辑芯片的 SOL控制模块的传 输控制单元之间的总线发送错误消息至逻辑芯片的 SOL控制模块,表示 BMC 不支持在业务系统当前串口波特率下接收业务系统数据。
其中, BMC控制流程全部在内核层实现, 无需用户层波特率控制代码参 与。 这便形成一种自动化的操作模式, 其优势在于整个控制流程的紧凑性, 从 串口波特率识别到中断, 到配置 BMC串口波特率完成一气呵成, 不受外界干 扰。
实施例六:
请参阅图 8, 图 8为本发明实施例提供的一种 SOL控制模块的结构示意 图, 用于实现本发明实施例提供的串口波特率配置方法。如图 8所示, 该 SOL 控制模块可以包括:
频率识别单元 801 , 用于识别业务系统当前串口波特率, 并比较业务系统 当前串口波特率与预先存储的业务系统串口波特率是否相同, 若不相同, 则将 预先存储的业务系统串口波特率更新为业务系统当前串口波特率; 反之, 若相 同, 则频率识别单元 801继续识别业务系统当前串口波特率, 并比较业务系统 当前串口波特率与预先存储的业务系统串口波特率是否相同。
数据緩存单元 802, 用于緩存业务系统串口发送的业务系统数据。
也即是说,数据緩存单元 802用于在业务系统当前串口波特率与预先存储 的业务系统串口波特率不相同时, 緩存业务系统串口发送的业务系统数据。
中断发生单元 803, 用于产生中断信号并发送至 BMC。
传输控制单元 804, 用于接收 BMC发送的响应消息; 若该响应消息携带 的信息表示 BMC支持在业务系统当前串口波特率下接收业务系统数据, 则将 緩存的业务系统数据发送给 BMC; 其中, 该响应消息是 BMC接收到上述中 断信号, 并获取 SOL控制模块中存储的业务系统当前串口波特率, 以及配置 BMC串口波特率与业务系统当前串口波特率一致之后发送的。
一个实施例中, 中断发生单元 802具体用于产生中断信号, 并通过中断发 生单元 802与 BMC的中断控制器之间的总线将中断信号发送至 BMC。
一个实施例中, 传输控制单元 804接收 BMC发送的响应消息的具体方式 为: 传输控制单元 804通过其与 BMC的外部存储器接口 (EMI )之间的总线 接收 BMC发送的响应消息。
一个实施例中, SOL控制模块的传输控制单元 804将緩存的业务系统数 据发送给 BMC的具体方式为:传输控制单元 804通过 SOL控制模块的串行模 块与 BMC的 UART串口之间的总线将緩存的业务系统数据发送给 BMC; 其 中, BMC串口波特率即为 BMC的 UART串口波特率。
上述提供的 SOL控制模块可以避免 BMC串口波特率与业务系统的当前串 口波特率不一致而导致的业务系统数据发送(如丟失、 乱码等)错误, 大大降 低业务系统数据发送错误的风险。另外,使 BMC在 SOL控制模块发送的中断 信号触发下才获取 SOL控制模块中存储的业务系统当前串口波特率, 并配置 其串口波特率与业务系统当前串口波特率一致, 避免了 BMC采用定时轮询方 式获取业务系统串口波特率, 减少了 BMC的信令资源浪费。
实施例六: 请参阅图 9, 图 9为本发明实施例提供的一种基板管理控制器的结构示意 图, 用于实现本发明实施例提供的串口波特率配置方法。 如图 9所示, 该基板 管理控制器 90可以包括:
中断控制器 901 , 用于接收 SOL控制模块发送的中断信号, 该中断信号 是 SOL控制模块识别出业务系统当前串口波特率与预先存储的业务系统串口 波特率不相同,并将预先存储的业务系统串口波特率更新为业务系统当前串口 波特率, 以及緩存业务系统串口发送的业务系统数据之后发送的。
频率获取单元 902, 用于获取 SOL控制模块中存储的业务系统当前串口 波特率。
频率配置单元 903 , 用于根据频率获取单元 902获取的业务系统当前串口 波特率, 配置基板管理控制器串口波特率与业务系统当前串口波特率一致。
消息反馈单元 904, 用于发送响应消息至 SOL控制模块, 该响应消息携 带的信息表示基板管理控制器支持在业务系统当前串口波特率下接收业务系 统数据。
请一并参阅图 10, 图 10为本发明实施例提供的另一种基板管理控制器的 结构示意图, 用于实现本发明实施例提供的串口波特率配置方法。 如图 10所 示, 该基板管理控制器在图 9所示的基板管理控制器的基础上进一步包括: 判断单元 905 , 用于判断基板管理控制器的硬件是否支持在频率获取单元 获取 902获取的业务系统当前串口波特率下接收业务系统数据, 若支持, 则通 知频率配置单元 904配置基板管理控制器串口波特率。
相应地,频率配置单元 903具体用于根据判断单元 905的通知以及频率获 取单元 902获取的业务系统当前串口波特率,配置基板管理控制器串口波特率 与业务系统当前串口波特率一致。
如图 10所示, 该基板管理控制器还包括:
数据发送单元 906, 用于接收 SOL控制模块发送业务系统数据, 并将业 务系统数据发送至网络侧。
一个实施例中,数据发送单元 906具体用于通过基板管理控制器的 UART 串口与 SOL控制模块的串行模块之间的总线接收 SOL控制模块发送业务系统 数据, 并将业务系统数据发送至网络侧; 其中, 基板管理控制器串口波特率即 为基板管理控制器的 UART串口波特率。
一个实施例中, 中断控制器 901接收 SOL控制模块发送的中断信号的具 体方式为: 中断控制器 901通过中断控制器 901与 SOL控制模块的中断发生 单元之间的总线接收 SOL控制模块发送的中断信号。
一个实施例中, 频率获取单元 902获取 SOL控制模块中存储的业务系统 当前串口波特率的具体方式为:
频率获取单元 902通过基板管理控制器的外部存储器接口( EMI )与 SOL 控制模块的频率识别单元之间的总线获取 SOL控制模块中存储的业务系统当 前串口波特率;
消息反馈单元 904发送响应消息至 SOL控制模块的具体方式为: 消息反馈单元 904通过基板管理控制器的外部存储器接口( EMI )与 SOL 控制模块的传输控制单元之间的总线发送响应消息至 SOL控制模块。
上述提供的 BMC可以避免其串口波特率与业务系统的当前串口波特率不 一致而导致的业务系统数据发送(如丟失、 乱码等)错误, 大大降低业务系统 数据发送错误的风险。 另外, BMC在 SOL控制模块发送的中断信号触发下才 获取 SOL控制模块中存储的业务系统当前串口波特率, 并配置其串口波特率 与业务系统当前串口波特率一致, 避免了 BMC采用定时轮询方式获取业务系 统串口波特率, 减少了 BMC的信令资源浪费。
请一并参阅图 11 , 图 11为本发明实施例提供的一种串口波特率配置系统 的结构示意图, 用于实现本发明实施例提供的串口波特率配置方法。 如图 11 所示, 串口波特率配置系统可以包括:
SOL控制模块 1101和基板管理控制器 1102, SOL控制模块 1101和基板 管理控制器 1102之间以可通信方式连接; 其中, SOL控制模块 1101的结构与 图 8所示的 SOL控制模块的结构相同, 基板管理控制器 1102的结构与图 10 所示的基板管理控制器的结构相同, 本发明实施例不作复述。
上述提供的串口波特率配置系统可以避免 BMC串口波特率与业务系统的 当前串口波特率不一致而导致的业务系统数据发送(如丟失、 乱码等)错误, 大大降低业务系统数据发送错误的风险。另外,使 BMC在 SOL控制模块发送 的中断信号触发下才获取 SOL控制模块中存储的业务系统当前串口波特率, 并配置其串口波特率与业务系统当前串口波特率一致, 避免了 BMC采用定时 轮询方式获取业务系统串口波特率, 减少了 BMC的信令资源浪费。
综上所述, 本发明实施例上述提供的方法及相关设备、 系统至少具备以下 优点:
1 ) SOL控制模块与业务系统首次串口建立连接或者业务系统串口波特率 发生变化时, 业务系统无需通知 SOL控制模块串口波特率信息;
2 ) SOL控制模块不再被动等待业务系统串口波特率信息,消除等待延时; 3 ) SOL控制模块与业务系统首次串口建立连接或者业务系统串口波特率 发生变化时, 业务系统数据进行緩存, 在等待 BMC配置其串口波特率与业务 系统当前串口波特率一致过程中不会出现丟失;
4 ) SOL控制模块与业务系统首次串口建立连接或者业务系统串口波特率 发生变化时, 业务系统数据暂停发送, 不会导致乱码出现;
5 ) BMC获取业务系统串口波特率的不再以定时轮询方式获取, 降低系统 信令开销。
本领域普通技术人员可以理解:实现上述方法实施例的全部或部分步骤可 以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机可读取存 储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储 介质包括:只读存储器( Read-Only Memory , ROM )、随机存取存储器 ( Random Access Memory, RAM ), 磁碟或者光盘等各种可以存储程序代码的介质。
以上对本发明实施例所提供的一种串口波特率配置方法及相关设备、系统 述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围 上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种串口波特率配置方法, 其特征在于, 包括:
串口网络重定向 SOL控制模块识别业务系统当前串口波特率, 并比较所 述业务系统当前串口波特率与预先存储的业务系统串口波特率是否相同,若不 相同,则将所述预先存储的业务系统串口波特率更新为所述业务系统当前串口 波特率;
所述 SOL控制模块緩存所述业务系统串口发送的业务系统数据; 所述 SOL控制模块产生中断信号并发送至基板管理控制器, 以及接收所 述基板管理控制器发送的响应消息;若所述响应消息携带的信息表示所述基板 管理控制器支持在所述业务系统当前串口波特率下接收业务系统数据,则所述 SOL控制模块将緩存的所述业务系统数据发送给所述基板管理控制器; 所述 响应消息是所述基板管理控制器接收到所述中断信号, 并获取所述 SOL控制 模块中存储的所述业务系统当前串口波特率,以及配置所述基板管理控制器串 口波特率与所述业务系统当前串口波特率一致之后发送的。
2、 根据权利要求 1所述的串口波特率配置方法, 其特征在于, 所述 SOL 控制模块产生中断信号并发送至基板管理控制器,以及接收所述基板管理控制 器发送的响应消息, 包括:
所述 SOL控制模块利用其中断发生单元产生中断信号, 并通过所述中断 发生单元与基板管理控制器的中断控制器之间的总线将所述中断信号发送至 所述过基板管理控制器;
所述 SOL控制模块通过其传输控制单元与所述基板管理控制器的外部存 储器接口 EMI之间的总线接收所述基板管理控制器发送的响应消息。
3、 根据权利要求 1或 2所述的串口波特率配置方法, 其特征在于, 所述 SOL控制模块将緩存的所述业务系统数据发送给所述基板管理控制器, 包括: 所述 SOL控制模块通过其串行模块与所述基板管理控制器的通用异步收 发 UART 串口之间的总线将緩存的所述业务系统数据发送给所述基板管理控 制器; 所述基板管理控制器串口波特率即为所述基板管理控制器的 UART 串 口波特率。
4、 一种串口波特率配置方法, 其特征在于, 包括:
基板管理控制器接收串口网络重定向 SOL控制模块发送的中断信号, 所 述中断信号是所述 SOL控制模块识别出业务系统当前串口波特率与预先存储 的业务系统串口波特率不相同,并将所述预先存储的业务系统串口波特率更新 为所述业务系统当前串口波特率,以及緩存所述业务系统串口发送的业务系统 数据之后发送的;
所述基板管理控制器获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率,以及配置所述基板管理控制器串口波特率与所述业务系统当前串 口波特率一致;
所述基板管理控制器发送响应消息至所述 SOL控制模块, 所述响应消息 携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波特率下 接收业务系统数据。
5、 根据权利要求 4所述的串口波特率配置方法, 其特征在于, 所述基板 管理控制器获取所述 SOL控制模块中存储的所述业务系统当前串口波特率之 后, 所述方法还包括:
所述基板管理控制器判断其硬件是否支持在所述业务系统当前串口波特 率下接收业务系统数据, 若支持, 则执行所述的配置所述基板管理控制器串口 波特率与所述业务系统当前串口波特率一致的步骤。
6、 根据权利要求 4或 5所述的串口波特率配置方法, 其特征在于, 所述 基板管理控制器发送响应消息至所述 SOL控制模块之后, 所述方法还包括: 所述基板管理控制器接收所述 SOL控制模块发送所述业务系统数据, 并 将所述业务系统数据发送至网络侧。
7、 根据权利要求 6所述的串口波特率配置方法, 其特征在于, 所述基板 管理控制器接收所述 SOL控制模块发送所述业务系统数据, 并将所述业务系 统数据发送至网络侧, 包括:
所述基板管理控制器通过其通用异步收发 UART串口与所述 SOL控制模 块的串行模块之间的总线接收所述 SOL控制模块发送所述业务系统数据, 并 将所述业务系统数据发送至网络侧;所述基板管理控制器串口波特率即为所述 基板管理控制器的 UART串口波特率。
8、根据权利要求 4~7任意一项所述的串口波特率配置方法,其特征在于, 所述基板管理控制器接收串口网络重定向 SOL控制模块发送的中断信号, 包 括:
所述基板管理控制器通过其中断控制器与串口网络重定向 SOL控制模块 的中断发生单元之间的总线接收所述串口网络重定向 SOL控制模块发送的中 断信号。
9、根据权利要求 4~8任意一项所述的串口波特率配置方法,其特征在于, 所述基板管理控制器获取所述 SOL控制模块中存储的所述业务系统当前串口 波特率, 包括:
所述基板管理控制器通过其外部存储器接口 EMI与所述 SOL控制模块的 频率识别单元之间的总线获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率;
所述基板管理控制器发送响应消息至所述 SOL控制模块, 包括: 所述基板管理控制器通过其外部存储器接口 EMI与所述 SOL控制模块的 传输控制单元之间的总线发送响应消息至所述 SOL控制模块。
10、 一种串口网络重定向 SOL控制模块, 其特征在于, 包括:
频率识别单元, 用于识别业务系统当前串口波特率, 并比较所述业务系统 当前串口波特率与预先存储的业务系统串口波特率是否相同, 若不相同, 则将 所述预先存储的业务系统串口波特率更新为所述业务系统当前串口波特率; 数据緩存单元, 用于緩存所述业务系统串口发送的业务系统数据; 中断发生单元, 用于产生中断信号并发送至基板管理控制器;
传输控制单元, 用于接收所述基板管理控制器发送的响应消息; 若所述响 应消息携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波 特率下接收业务系统数据,则将緩存的所述业务系统数据发送给所述基板管理 控制器; 所述响应消息是所述基板管理控制器接收到所述中断信号, 并获取所 述 SOL控制模块中存储的所述业务系统当前串口波特率, 以及配置所述基板 管理控制器串口波特率与所述业务系统当前串口波特率一致之后发送的。
11、 根据权利要求 10所述的 SOL控制模块, 其特征在于,
所述中断发生单元具体用于产生中断信号,并通过所述中断发生单元与基 板管理控制器的中断控制器之间的总线将所述中断信号发送至所述过基板管 理控制器;
所述传输控制单元接收所述基板管理控制器发送的响应消息的具体方式 为:所述传输控制单元通过所述传输控制单元与所述基板管理控制器的外部存 储器接口 EMI之间的总线接收所述基板管理控制器发送的响应消息。
12、 根据权利要求 10或 11所述的 SOL控制模块, 其特征在于, 所述传输控制单元将緩存的所述业务系统数据发送给所述基板管理控制 器的具体方式为: 所述传输控制单元通过所述 SOL控制模块的串行模块与所 述基板管理控制器的通用异步收发 UART 串口之间的总线将緩存的所述业务 系统数据发送给所述基板管理控制器;所述基板管理控制器串口波特率即为所 述基板管理控制器的 UART串口波特率。
13、 一种基板管理控制器, 其特征在于, 包括:
中断控制器, 用于接收串口网络重定向 SOL控制模块发送的中断信号, 所述中断信号是所述 SOL控制模块识别出业务系统当前串口波特率与预先存 储的业务系统串口波特率不相同,并将所述预先存储的业务系统串口波特率更 新为所述业务系统当前串口波特率,以及緩存所述业务系统串口发送的业务系 统数据之后发送的;
频率获取单元, 用于获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率;
频率配置单元,用于根据所述频率获取单元获取的所述业务系统当前串口 波特率,配置所述基板管理控制器串口波特率与所述业务系统当前串口波特率 一致;
消息反馈单元, 用于发送响应消息至所述 SOL控制模块, 所述响应消息 携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波特率下 接收业务系统数据。
14、 根据权利要求 13所述的基板管理控制器, 其特征在于, 还包括: 判断单元,用于判断所述基板管理控制器的硬件是否支持在所述频率获取 单元获取的所述业务系统当前串口波特率下接收业务系统数据, 若支持, 则通 知所述频率配置单元配置所述基板管理控制器串口波特率;
所述频率配置单元具体用于根据所述判断单元的通知以及所述频率获取 单元获取的所述业务系统当前串口波特率,配置所述基板管理控制器串口波特 率与所述业务系统当前串口波特率一致。
15、根据权利要求 13或 14所述的基板管理控制器,其特征在于,还包括: 数据发送单元, 用于接收所述 SOL控制模块发送所述业务系统数据, 并 将所述业务系统数据发送至网络侧。
16、 根据权利要求 15所述的基板管理控制器, 其特征在于,
数据发送单元具体用于通过所述基板管理控制器的通用异步收发 UART 串口与所述 SOL控制模块的串行模块之间的总线接收所述 SOL控制模块发送 所述业务系统数据, 并将所述业务系统数据发送至网络侧; 所述基板管理控制 器串口波特率即为所述基板管理控制器的 UART串口波特率。
17、 根据权利要求 13~16任意一项所述的基板管理控制器, 其特征在于, 所述中断控制器接收串口网络重定向 SOL控制模块发送的中断信号的具 体方式为: 所述中断控制器通过所述中断控制器与串口网络重定向 SOL控制 模块的中断发生单元之间的总线接收所述串口网络重定向 SOL控制模块发送 的中断信号。
18、 根据权利要求 13~17任意一项所述的基板管理控制器, 其特征在于, 所述频率获取单元获取所述 SOL控制模块中存储的所述业务系统当前串 口波特率的具体方式为:
所述频率获取单元通过所述基板管理控制器的外部存储器接口 EMI与所 述 SOL控制模块的频率识别单元之间的总线获取所述 SOL控制模块中存储的 所述业务系统当前串口波特率;
所述消息反馈单元发送响应消息至所述 SOL控制模块的具体方式为: 所述消息反馈单元通过所述基板管理控制器的外部存储器接口 EMI与所 述 SOL控制模块的传输控制单元之间的总线发送响应消息至所述 SOL控制模 块。
19、 一种串口波特率配置系统, 其特征在于, 包括:
串口网络重定向 SOL控制模块和基板管理控制器, 所述 SOL控制模块和 所述基板管理控制器之间以可通信方式连接;
所述 SOL控制模块, 包括:
频率识别单元, 用于识别业务系统当前串口波特率, 并比较所述业务系统 当前串口波特率与预先存储的业务系统串口波特率是否相同, 若不相同, 则将 所述预先存储的业务系统串口波特率更新为所述业务系统当前串口波特率; 数据緩存单元, 用于緩存所述业务系统串口发送的业务系统数据; 中断发生单元, 用于产生中断信号并发送至所述基板管理控制器; 传输控制单元, 用于接收所述基板管理控制器发送的响应消息; 若所述响 应消息携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波 特率下接收业务系统数据,则将緩存的所述业务系统数据发送给所述基板管理 控制器;
所述基板管理控制器, 包括:
中断控制器, 用于接收所述 SOL控制模块发送的中断信号;
频率获取单元, 用于获取所述 SOL控制模块中存储的所述业务系统当前 串口波特率;
频率配置单元,用于根据所述频率获取单元获取的所述业务系统当前串口 波特率,配置所述基板管理控制器串口波特率与所述业务系统当前串口波特率 一致;
消息反馈单元, 用于发送响应消息至所述 SOL控制模块, 所述响应消息 携带的信息表示所述基板管理控制器支持在所述业务系统当前串口波特率下 接收业务系统数据。
20、 根据权利要求 19所述的串口波特率配置系统, 其特征在于, 所述基 板管理控制器还包括:
数据发送单元, 用于接收所述 SOL控制模块发送所述业务系统数据, 并 将所述业务系统数据发送至网络侧。
21、 根据权利要求 20所述的基板管理控制器, 其特征在于, 数据发送单元具体用于通过所述基板管理控制器的通用异步收发 UART 串口与所述 SOL控制模块的串行模块之间的总线接收所述 SOL控制模块发送 所述业务系统数据, 并将所述业务系统数据发送至网络侧; 所述基板管理控制 器串口波特率即为所述基板管理控制器的 UART串口波特率。
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