CN111930678A - Data transmission method and device, electronic equipment and storage medium - Google Patents
Data transmission method and device, electronic equipment and storage medium Download PDFInfo
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- CN111930678A CN111930678A CN202010820139.6A CN202010820139A CN111930678A CN 111930678 A CN111930678 A CN 111930678A CN 202010820139 A CN202010820139 A CN 202010820139A CN 111930678 A CN111930678 A CN 111930678A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
- G06F15/163—Interprocessor communication
- G06F15/173—Interprocessor communication using an interconnection network, e.g. matrix, shuffle, pyramid, star, snowflake
- G06F15/1735—Network adapters, e.g. SCI, Myrinet
Abstract
The application discloses a data transmission method, a data transmission device, an electronic device and a computer readable storage medium, wherein the method comprises the following steps: receiving a command type of a target command sent by the first host, and configuring a storage address for the target command; sending the command type and the storage address to the second host; when the target command sent by the first host is received, the target command is stored to the storage address, so that the second host acquires the command type of the target command from the message transmission controller and acquires the target command from the storage address. The data transmission method improves the flexibility and the expandability of message transmission among the multiple hosts.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a data transmission method and apparatus, an electronic device, and a computer-readable storage medium.
Background
With the increasingly widespread application of heterogeneous acceleration, the accelerator card based on the FPGA (Field Programmable Gate Array, English) is also rapidly developed. The accelerator card FPGA is connected with the server host, the server host sends data needing to be accelerated to the accelerator card FPGA, and the accelerator card FPGA returns related data after processing is completed.
In the related art, if a plurality of hosts need to process data through the accelerator card and the data are related, message passing between the multiple processors is controlled through an upper layer application. However, this method is related to specific applications, and different applications require different controls, and the scalability is poor.
Therefore, how to improve the flexibility and scalability of message transmission between multiple hosts is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a data transmission method, a data transmission device, an electronic device and a computer readable storage medium, and flexibility and expandability of message transmission among a plurality of hosts are improved.
In order to achieve the above object, the present application provides a data transmission method applied to a message transmission controller, where the message transmission controller is located between a first host and a second host, and the method includes:
receiving a command type of a target command sent by the first host, and configuring a storage address for the target command;
sending the command type and the storage address to the second host;
when the target command sent by the first host is received, the target command is stored to the storage address, so that the second host acquires the command type of the target command from the message transmission controller and acquires the target command from the storage address.
Wherein, still include:
and recording the transmission state of the target command.
Wherein, still include:
and when receiving the query command of the first host and/or the second host, returning the transmission state of the target command to the first host and/or the second host.
Wherein, still include:
and when an acquisition request sent by the second host is received, returning a target command in the storage address and the command type of the target command to the second host.
Wherein, after storing the target command to the storage address, further comprising:
and sending an interrupt message to the second host so that the second host sends an acquisition request for acquiring the target command and the command type of the target command.
The obtaining request is specifically a request sent when the second host inquires that the transmission state of the target command is waiting for transmission.
Wherein configuring a storage address for the target command comprises:
judging whether the data size of the target command is smaller than a preset value or not;
if yes, configuring a storage address for the target command in the message transmission controller;
if not, configuring a storage address for the target command in the first host.
In order to achieve the above object, the present application provides a data transmission apparatus applied to a message transmission controller, where the message transmission controller is located between a first host and a second host, the apparatus including:
the configuration module is used for receiving the command type of a target command sent by the first host and configuring a storage address for the target command;
the first sending module is used for sending the command type and the storage address to the second host;
and the storage module is used for storing the target command to the storage address when receiving the target command sent by the first host, so that the second host can acquire the command type of the target command from the message transmission controller and acquire the target command from the storage address.
To achieve the above object, the present application provides an electronic device including:
a memory for storing a computer program;
a processor for implementing the steps of the data transmission method as described above when executing the computer program.
To achieve the above object, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the data transmission method as described above.
According to the scheme, the data transmission method provided by the application comprises the following steps: receiving a command type of a target command sent by the first host, and configuring a storage address for the target command; sending the command type and the storage address to the second host; when the target command sent by the first host is received, the target command is stored to the storage address, so that the second host acquires the command type of the target command from the message transmission controller and acquires the target command from the storage address.
According to the data transmission method, the message transmission controller is arranged between any two hosts needing message transmission, the first host sending the target command can set the command type of the target command in the message transmission controller according to task requirements, the message transmission controller configures a storage address for the target command, and the second host can obtain the command type of the target command from the message transmission controller and obtain the target command from the storage address. Therefore, the message transmission controller can be packaged into an IP for independent use, can be suitable for message transmission control between two or more hosts, and improves the flexibility and expandability of message transmission among a plurality of hosts. The application also discloses a data transmission device, an electronic device and a computer readable storage medium, which can also realize the technical effects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a method of data transmission according to an exemplary embodiment;
FIG. 2 is a block diagram illustrating a data transmission system in accordance with an exemplary embodiment;
FIG. 3 is a block diagram of a data transmission system in an embodiment of the present application;
FIG. 4 is a block diagram illustrating a data transfer device in accordance with an exemplary embodiment;
FIG. 5 is a block diagram illustrating an electronic device in accordance with an exemplary embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application discloses a data transmission method, which improves the flexibility and the expandability of message transmission among a plurality of hosts.
Referring to fig. 1, a flow chart of a data transmission method according to an exemplary embodiment is shown, as shown in fig. 1, including:
s101: receiving a command type of a target command sent by the first host, and configuring a storage address for the target command;
in a specific implementation, as shown in fig. 2, a message transmission controller, which may include an FPGA, is disposed between any two hosts that need message transmission. The command type between each host can be defined by the host sending the command, and the message transmission between the hosts is independent and does not influence each other. The main execution body of this embodiment is a message transmission controller, and the message transmission controller is located between a first host and a second host.
In this step, the first host sends the command type of the target command to be sent to the second host to the message transmission controller, where the command type may include a read/write command, a DMA (Direct Memory Access) move command, a wait command, and the like, and is not limited specifically herein. The message transmission controller configures a storage address for a target command, and specifically, the step of configuring a storage address for the target command includes: judging whether the data size of the target command is smaller than a preset value or not; if yes, configuring a storage address for the target command in the message transmission controller; if not, configuring a storage address for the target command in the first host. In a specific implementation, if the data size of the target command is smaller than a preset value, the data size of the target command is directly stored in the message transmission controller, and if the data size of the target command is larger than or equal to the preset value, the data size of the target command is stored in the first host.
S102: sending the command type and the storage address to the second host;
in this step, the message transmission controller sends the command type and the storage address of the target command to the second host so as to inform the second host that there is a target command that needs to be acquired.
S103: when the target command sent by the first host is received, the target command is stored to the storage address, so that the second host acquires the command type of the target command from the message transmission controller and acquires the target command from the storage address.
In this step, the message transmission controller receives the target command sent by the first host and stores the target command to the configured storage address. And when an acquisition request sent by the second host is received, returning a target command in the storage address and the command type of the target command to the second host.
As a preferred embodiment, the message transmission controller records the transmission status of the target command, which may include waiting for transmission, completing transmission, and the like, and both the first host and the second host may query the transmission status of the target command, that is, this embodiment further includes: and when receiving the query command of the first host and/or the second host, returning the transmission state of the target command to the first host and/or the second host.
In this embodiment, the transmission mode of the target command may also be set, including an interrupt mode and a polling mode. For the interrupt mode, after storing the target command to the configured storage address, the message transmission controller sends an interrupt message to the second host, and the second host sends an acquisition request for acquiring the target command and the command type of the target command after receiving the interrupt message. For the polling mode, the second host inquires the transmission state of the target command at preset time intervals, and sends an acquisition request for acquiring the target command and the command type of the target command when the transmission state is waiting for transmission.
According to the data transmission method provided by the embodiment of the application, the message transmission controller is arranged between any two hosts needing message transmission, the first host sending the target command can set the command type of the target command in the message transmission controller according to task requirements, the message transmission controller configures a storage address for the target command, and the second host can acquire the command type of the target command from the message transmission controller and acquire the target command from the storage address. Therefore, the message transmission controller in the embodiment of the application can be encapsulated into IP for independent use, can be suitable for message transmission control between two or more hosts, and improves the flexibility and expandability of message transmission between a plurality of hosts.
Referring to an application embodiment provided by the present application, the message transmission controller is specifically an FPGA, and as shown in fig. 3, the FPGA includes a command control module, an address mapping and buffering module, a status information module, and an interrupt control module, and is connected to the CPU1 and the CPU2 through a slave interface of Avalon.
The main function of the command control module is to define the command types of communication between the processors, and the commands are all commands customized according to different tasks between the processors.
The address mapping and caching module is mainly responsible for storing message contents, and has two modes, the message contents can be stored through a mapped host memory address, and can also be directly stored on an FPGA (field programmable gate array), and the two modes are configurable and can be selected according to actual needs.
The state information module is mainly used for recording various states of message transmission, and can select a message transmission mode, an interrupt mode or a polling mode. The interrupt mode is to send different interrupts through the interrupt module to inform the CPU1 and the CPU 2. The polling mode is that the CPU1 and the CPU2 acquire the message transmission status by continuously polling the status module.
The main function of the interrupt control module is to send or mask corresponding interrupts according to different messages and according to the configuration information of each processor.
Taking the example of the CPU1 transmitting a message to the CPU2, the FPGA workflow is as follows:
step 1: the CPU1 configures the command control module according to the command type of the message;
step 2: the CPU2 is informed of the address of the particular content of the message by the address mapping and caching module. For the messages with less contents, directly writing the messages into the module;
and step 3: the status information module records the current status of the message, and both CPU1 and CPU2 can obtain the information about whether the message has been normally delivered.
And 4, step 4: when the CPU1 sends a message to the controller, the interrupt control module will decide whether to issue an associated interrupt, i.e., interrupt mode or polling mode, to the CPU1 and the CPU2 based on the previous configuration information of the CPU1 and the CPU 2. Step 5 is entered for interrupt mode, step 6 is entered for polling mode;
and 5: when the CPU1 receives the corresponding interrupt, it determines whether to wait or issue the next message or do other tasks based on the interrupt. When the CPU2 receives an interrupt, it determines whether to read the message or do other tasks based on the interrupt. If the message is read, the CPU2 will first read the command type from the command control module, and then read the specific data of the message from the address mapping module, during which the status recording module will update the current status of the message;
step 6: the CPU2 will poll the status logging module itself until the message arrives.
In the following, a data transmission device provided in the embodiments of the present application is introduced, and a data transmission device described below and a data transmission method described above may be referred to each other.
Referring to fig. 4, a block diagram of a data transmission apparatus according to an exemplary embodiment is shown, as shown in fig. 4, including:
a configuration module 401, configured to receive a command type of a target command sent by the first host, and configure a storage address for the target command;
a first sending module 402, configured to send the command type and the storage address to the second host;
a storage module 403, configured to, when receiving the target command sent by the first host, store the target command to the storage address, so that the second host obtains the command type of the target command from the message transmission controller, and obtains the target command from the storage address.
According to the data transmission device provided by the embodiment of the application, the message transmission controller is arranged between any two hosts needing message transmission, the first host sending the target command can set the command type of the target command in the message transmission controller according to task requirements, the message transmission controller configures a storage address for the target command, and the second host can acquire the command type of the target command from the message transmission controller and acquire the target command from the storage address. Therefore, the message transmission controller in the embodiment of the application can be encapsulated into IP for independent use, can be suitable for message transmission control between two or more hosts, and improves the flexibility and expandability of message transmission between a plurality of hosts.
On the basis of the above embodiment, as a preferred implementation, the method further includes:
and the recording module is used for recording the transmission state of the target command.
On the basis of the above embodiment, as a preferred implementation, the method further includes:
and the first returning module is used for returning the transmission state of the target command to the first host and/or the second host when receiving the query command of the first host and/or the second host.
On the basis of the above embodiment, as a preferred implementation, the method further includes:
and the second returning module is used for returning the target command in the storage address and the command type of the target command to the second host when receiving the acquisition request sent by the second host.
On the basis of the above embodiment, as a preferred implementation, the method further includes:
a second sending module, configured to send an interrupt message to the second host, so that the second host sends an obtaining request for obtaining the target command and the command type of the target command.
On the basis of the foregoing embodiment, as a preferred implementation manner, the obtaining request is specifically a request sent when the second host inquires that the transmission state of the target command is a waiting transmission state.
On the basis of the foregoing embodiment, as a preferred implementation, the configuration module 401 includes:
a receiving unit, configured to receive a command type of a target command sent by the first host;
the judging unit is used for judging whether the data size of the target command is smaller than a preset value or not; if yes, starting the working process of the first configuration unit; if not, starting the working process of the second configuration unit;
a first configuration unit, configured to configure a storage address for the target command in the message transmission controller;
a second configuration unit, configured to configure a storage address for the target command in the first host.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The present application further provides an electronic device, and referring to fig. 5, a structure diagram of an electronic device 500 provided in an embodiment of the present application may include a processor 11 and a memory 12, as shown in fig. 5. The electronic device 500 may also include one or more of a multimedia component 13, an input/output (I/O) interface 14, and a communication component 15.
The processor 11 is configured to control the overall operation of the electronic device 500, so as to complete all or part of the steps in the data transmission method. The memory 12 is used to store various types of data to support operation at the electronic device 500, such data can include, for example, instructions for any application or method operating on the electronic device 500 and application-related data. The Memory 12 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 13 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 12 or transmitted via the communication component 15. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 14 provides an interface between the processor 11 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 15 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so that the corresponding Communication component 15 may include: Wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the electronic Device 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-mentioned data transmission method.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described data transmission method is also provided. For example, the computer readable storage medium may be the memory 12 described above comprising program instructions that are executable by the processor 11 of the electronic device 500 to perform the data transmission method described above.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A data transmission method applied to a message transmission controller, the message transmission controller being located between a first host and a second host, the method comprising:
receiving a command type of a target command sent by the first host, and configuring a storage address for the target command;
sending the command type and the storage address to the second host;
when the target command sent by the first host is received, the target command is stored to the storage address, so that the second host acquires the command type of the target command from the message transmission controller and acquires the target command from the storage address.
2. The data transmission method according to claim 1, further comprising:
and recording the transmission state of the target command.
3. The data transmission method according to claim 2, further comprising:
and when receiving the query command of the first host and/or the second host, returning the transmission state of the target command to the first host and/or the second host.
4. The data transmission method according to claim 1, further comprising:
and when an acquisition request sent by the second host is received, returning a target command in the storage address and the command type of the target command to the second host.
5. The data transmission method according to claim 4, wherein after storing the target command to the storage address, further comprising:
and sending an interrupt message to the second host so that the second host sends an acquisition request for acquiring the target command and the command type of the target command.
6. The data transmission method according to claim 4, wherein the obtaining request is a request sent when the second host inquires that the transmission status of the target command is waiting for transmission.
7. The data transmission method according to any one of claims 1 to 6, wherein configuring a storage address for the target command comprises:
judging whether the data size of the target command is smaller than a preset value or not;
if yes, configuring a storage address for the target command in the message transmission controller;
if not, configuring a storage address for the target command in the first host.
8. A data transmission apparatus applied to a message transmission controller, the message transmission controller being located between a first host and a second host, the apparatus comprising:
the configuration module is used for receiving the command type of a target command sent by the first host and configuring a storage address for the target command;
the first sending module is used for sending the command type and the storage address to the second host;
and the storage module is used for storing the target command to the storage address when receiving the target command sent by the first host, so that the second host can acquire the command type of the target command from the message transmission controller and acquire the target command from the storage address.
9. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the data transmission method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the data transmission method according to one of claims 1 to 7.
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| WO2023207456A1 (en) * | 2022-04-28 | 2023-11-02 | 华为技术有限公司 | Command transmission method and apparatus |
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Application publication date: 20201113 |