CN113691434B - Data transmission system, method, electronic device, and storage medium - Google Patents
Data transmission system, method, electronic device, and storage medium Download PDFInfo
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- CN113691434B CN113691434B CN202111015559.8A CN202111015559A CN113691434B CN 113691434 B CN113691434 B CN 113691434B CN 202111015559 A CN202111015559 A CN 202111015559A CN 113691434 B CN113691434 B CN 113691434B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Abstract
The application is applicable to the technical field of computers, and provides a data transmission system, a data transmission method, electronic equipment and a storage medium, wherein the data transmission system comprises: a plurality of communication modules, and a ring line connecting the communication modules in series; the communication module comprises a master communication module and a slave communication module. When the target transmission task needs to be executed, the slave communication module firstly sends transmission application information to the master communication module, so that the master communication module can determine pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, and when the pre-estimated occupation information indicates that an unoccupied communication module exists in the annular circuit, first transmission indication information is sent to the slave communication module to indicate the slave communication module to execute the target transmission task. The embodiment of the application can improve the data transmission efficiency.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a data transmission system, a data transmission method, an electronic device, and a storage medium.
Background
At present, in a data transmission system including a plurality of communication modules, it is common to provide a separate physical line for each two communication modules to realize data transmission between the communication modules. However, this solution requires a large number of physical lines, and each communication module needs to handle data transmission tasks of a plurality of physical lines, resulting in low data transmission efficiency and high cost.
Disclosure of Invention
In view of this, embodiments of the present application provide a data transmission system, a data transmission method, an electronic device, and a storage medium, so as to solve the problem of how to improve data transmission efficiency in the prior art.
A first aspect of an embodiment of the present application provides a data transmission system, where the data transmission system includes a plurality of communication modules and a ring line that connects the communication modules in series; the communication module comprises a master communication module and a slave communication module;
the master communication module is used for acquiring transmission application information corresponding to the target transmission task sent by the slave communication module; determining pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, wherein the occupation information is used for representing the occupation condition of each communication module in the annular circuit; if the estimated occupation information indicates that the annular circuit has unoccupied communication modules, the main communication module sends first transmission indication information to the slave communication module to indicate the slave communication module to execute the target transmission task;
the slave communication module is used for sending the transmission application information corresponding to the target transmission task to the master communication module; and if the first transmission indication information returned by the main communication module according to the transmission application information is received, executing the target transmission task.
A second aspect of the embodiments of the present application provides a first data transmission method, which is applied to a master communication module in a data transmission system according to the first aspect, and includes:
acquiring transmission application information corresponding to a target transmission task sent from a communication module;
determining estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, wherein the occupation information is used for representing the occupation condition of each communication module in the annular circuit of the data transmission system;
and if the estimated occupation information indicates that the annular circuit has an unoccupied communication module, sending first transmission indication information to the slave communication module to indicate the slave communication module to execute the target transmission task.
A third aspect of the embodiments of the present application provides a second data transmission method, which is applied to a slave communication module in a data transmission system according to the first aspect, and includes:
transmitting transmission application information corresponding to the target transmission task to the main communication module;
and if first transmission indicating information returned by the main communication module according to the transmission application information is received, executing the target transmission task.
A fourth aspect of embodiments of the present application provides an electronic device, including the data transmission system according to the first aspect.
A fifth aspect of embodiments of the present application provides a computer-readable storage medium storing a computer program which, when executed by a communication module of a data transmission system, implements the steps of the data transmission method according to the second aspect or the third aspect.
A sixth aspect of embodiments of the present application provides a computer program product, which, when run on an electronic device, causes the electronic device to perform the data transmission method as described in the second or third aspect.
Compared with the prior art, the embodiment of the application has the advantages that: in the embodiment of the application, as the annular line which is connected with each communication module in series can be arranged in the data transmission system comprising a plurality of communication modules, the data transmission among the plurality of communication modules can be efficiently realized through the annular line without independently arranging independent physical lines for every two communication modules; and when the slave communication module needs to execute the target transmission task, the slave communication module firstly sends transmission application information to the master communication module, so that the master communication module can determine pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, and when the pre-estimated occupation information indicates that an unoccupied communication module exists in the annular circuit, first transmission indication information is sent to the slave communication module to indicate the slave communication module to execute the target transmission task. Through the interaction of the master communication module and the slave communication module, the slave communication module still has an unoccupied communication module in the annular circuit when the target transmission task is determined to be executed, namely, the target transmission task is executed under the condition that a data loop cannot be caused, so that the data loop can be avoided, the phenomenon of deadlock of the loop is avoided, and the data transmission efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the embodiments or the description of the prior art will be briefly described below.
Fig. 1 is a schematic diagram of a first data transmission system provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a second data transmission system provided by an embodiment of the present application;
fig. 3 is a schematic flow chart of an implementation of a first data transmission method provided in an embodiment of the present application;
fig. 4 is a schematic diagram of a data format for transmitting application information according to an embodiment of the present application;
fig. 5 is a schematic flow chart of an implementation of a second data transmission method provided in an embodiment of the present application;
fig. 6 is a schematic diagram of a first data transmission apparatus according to an embodiment of the present application;
fig. 7 is a schematic diagram of a second data transmission apparatus according to an embodiment of the present application;
fig. 8 is a schematic diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
In addition, in the description of the present application, the terms "first," "second," and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
At present, in a data transmission system including a plurality of communication modules, it is common to provide a separate physical line for each two communication modules to realize data transmission between the communication modules. However, this solution requires a large number of physical lines, and each communication module needs to handle data transmission tasks of a plurality of physical lines, resulting in low data transmission efficiency and high cost.
In order to solve the foregoing technical problem, embodiments of the present application provide a data transmission system, a method, an apparatus, an electronic device, and a storage medium. The data transmission system comprises a plurality of communication modules and a ring line which is connected with the communication modules in series; the communication module comprises a master communication module and a slave communication module; the master communication module is used for acquiring transmission application information corresponding to the target transmission task sent by the slave communication module; determining pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, wherein the occupation information is used for representing the occupation condition of each communication module in the annular circuit; if the estimated occupation information indicates that the annular circuit has an unoccupied communication module, sending first transmission indication information to the slave communication module to indicate the slave communication module to execute a target transmission task; the slave communication module is used for sending the transmission application information corresponding to the target transmission task to the master communication module; and if the first transmission indication information returned by the main communication module according to the transmission application information is received, executing the target transmission task.
Because the annular line which is connected with each communication module in series can be arranged in the data transmission system comprising a plurality of communication modules, the data transmission among the plurality of communication modules can be realized efficiently through the annular line without independently arranging independent physical lines for each two communication modules; and when the slave communication module needs to execute the target transmission task, the slave communication module firstly sends transmission application information to the master communication module, so that the master communication module can determine pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, and when the pre-estimated occupation information indicates that an unoccupied communication module exists in the annular circuit, first transmission indication information is sent to the slave communication module to indicate the slave communication module to execute the target transmission task. Through the interaction of the master communication module and the slave communication module, the slave communication module still has an unoccupied communication module in the annular circuit when the target transmission task is determined to be executed, namely, the target transmission task is executed under the condition that a data loop cannot be caused, so that the data loop can be avoided, the phenomenon of deadlock of the loop is avoided, and the data transmission efficiency is improved.
The first embodiment is as follows:
fig. 1 shows a schematic diagram of a data transmission system provided in an embodiment of the present application. The details are as follows:
the data transmission system comprises a plurality of communication modules and a ring line which is connected with each communication module in series; the communication module comprises a master communication module and a slave communication module.
In one embodiment, the data transmission system is a multichip interconnection system, and the communication module is a Die. Die refers to a Die before the chip is packaged, and is a small piece (Die) cut from a silicon Wafer (Wafer) by laser, and each Die is an independent functional chip. In the embodiment of the present application, a plurality of independent functional chips Die are packaged as a unit, so as to obtain a multi-chip interconnection system.
In the embodiment of the application, the data transmission system comprises n communication modules P0-P (n-1), wherein n is a positive integer greater than or equal to 3. Illustratively, n may be equal to 8, i.e. 8 communication modules from P0 to P7 may be included in the data transmission system.
The data transmission system further comprises a circuit for serially connecting the communication modules in sequence, so that a ring line in an end-to-end form is formed between the communication modules.
Each communication module included in the data transmission system includes at least one master communication module and a plurality of slave communication modules. The main communication module is a communication module selected from the communication modules and used for determining whether a transmission task in the data transmission system can be executed in the current ring line. In one embodiment, the master communication module is specifically a communication module with the shortest sum of distances to other communication modules, so that when the other communication modules are used as slave communication modules, the other communication modules can conveniently and efficiently interact with the master communication module through a short path, so as to efficiently realize data transmission.
The main communication module is used for executing the following data transmission steps, and comprises:
acquiring transmission application information corresponding to the target transmission task sent by the slave communication module;
determining pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, wherein the occupation information is used for representing the occupation condition of each communication module in the annular circuit;
and if the estimated occupation information indicates that the annular circuit has an unoccupied communication module, sending first transmission indication information to the slave communication module to indicate the slave communication module to execute the target transmission task.
The slave communication module is used for executing the following data transmission steps, and comprises:
sending the transmission application information corresponding to the target transmission task to the main communication module;
and if the first transmission indication information returned by the main communication module according to the transmission application information is received, executing the target transmission task.
For each data transmission step corresponding to the master communication module, the following description of the second embodiment may be referred to in detail, and for each data transmission step corresponding to the slave communication module, the following description of the third embodiment may be referred to in detail.
In the embodiment of the application, as the annular line which is connected with each communication module in series can be arranged in the data transmission system comprising a plurality of communication modules, the data transmission among the plurality of communication modules can be efficiently realized through the annular line without independently arranging independent physical lines for every two communication modules; and when the slave communication module needs to execute the target transmission task, the slave communication module firstly sends transmission application information to the master communication module, so that the master communication module can determine pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, and when the pre-estimated occupation information indicates that an unoccupied communication module exists in the annular circuit, first transmission indication information is sent to the slave communication module to indicate the slave communication module to execute the target transmission task. Through the interaction of the master communication module and the slave communication module, the slave communication module still has an unoccupied communication module in the annular circuit when the target transmission task is determined to be executed, namely, the target transmission task is executed under the condition that a data loop cannot be caused, so that the data loop can be avoided, the phenomenon of deadlock of the loop is avoided, and the data transmission efficiency is improved.
Optionally, the ring lines in the data transmission system according to the embodiment of the present application specifically include two lines, namely a clockwise ring line and a counterclockwise ring line. The clockwise ring line is a ring line with a clockwise data transmission direction, the anticlockwise ring line is a ring line with an anticlockwise data transmission direction, and the clockwise ring line and the anticlockwise ring line are parallel to each other and have opposite directions. The n communication modules are sequentially connected in series through the clockwise annular line and the anticlockwise annular line, so that each communication module is provided with two outlets for outputting data and two inlets for inputting data, which respectively correspond to different clockwise directions, namely, two paths in different directions can be communicated between any two communication modules, more data transmission paths are provided, and the data transmission efficiency of the data transmission system is further improved.
Correspondingly, the pre-stored occupation information comprises first pre-stored occupation information corresponding to a clockwise ring line and second pre-stored occupation information corresponding to a counterclockwise ring line. The transmission application information corresponding to the target transmission task sent from the communication module carries information of the transmission direction (referred to as target direction for short) of the data transmission. The target direction may be clockwise or counter-clockwise. When the target direction is the clockwise direction, determining first pre-estimated occupation information according to the first pre-stored occupation information and the transmission application information, and when determining that an unoccupied communication module exists on the clockwise loop circuit through the first pre-estimated occupation information, namely when determining that a data loop cannot be formed on the clockwise loop circuit, allowing the slave communication module to execute a target transmission task in the clockwise direction, and sending first transmission indication information to the slave communication module. And when the target direction is the counterclockwise direction, determining second pre-estimated occupation information according to the second pre-stored occupation information and the transmission application information, and when determining that an unoccupied communication module exists on the counterclockwise loop circuit through the second pre-estimated occupation information, namely when determining that a data loop cannot be formed on the counterclockwise loop circuit, allowing the slave communication module to execute a target transmission task in the counterclockwise direction, and sending first transmission indication information to the slave communication module.
The clockwise annular line and the anticlockwise annular line are two different annular lines which are parallel to each other and do not interfere with each other, so that more line resources can be provided for data transmission, and the data transmission efficiency of the data transmission system is improved; and the target direction can be determined according to the current transmission application information, so that the corresponding pre-stored occupation information is obtained, whether a clockwise annular circuit or a counterclockwise annular circuit corresponding to the current target transmission task forms a data loop is accurately determined, and the phenomenon of loop deadlock is accurately avoided.
Example two:
fig. 3 is a schematic flowchart illustrating a first data transmission method provided in an embodiment of the present application, where the data transmission method is applied to a master communication module in a data transmission system according to a first embodiment, and is detailed as follows:
in the embodiment of the present application, the master communication module is a communication module selected from communication modules of the data transmission system, and is used for determining whether a transmission task in the data transmission system can be executed in a current ring line. In one embodiment, the master communication module is specifically a communication module with the shortest sum of distances to other communication modules, so that when the other communication modules are used as slave communication modules, the other communication modules can conveniently and efficiently interact with the master communication module through a short path, so as to efficiently realize data transmission.
In S301, transmission application information corresponding to the target transmission task transmitted from the communication module is acquired.
In the embodiment of the present application, the slave communication module is any one communication module except for the master communication module in the data transmission system. And when the slave communication module needs to execute the target transmission task, transmitting transmission application information corresponding to the target transmission task to the master communication module. The main communication module acquires the transmission application information.
In one embodiment, the transmission application information may include identification information of the slave communication module and information of a destination communication module corresponding to the target transmission task, the destination communication module being at least one other communication module other than the slave communication module, which is a destination of data to be currently transmitted by the slave communication module. In general, each communication module in the data transmission system has a corresponding number, and as a possible implementation manner, the identification information of the slave communication module may specifically be the number of the slave communication module, and the information of the destination communication module may be the number of each destination communication module. Since the destination communication module is usually a plurality of communication modules immediately adjacent to the slave communication module, the information of the destination communication module may be the number information of the destination communication module, and the number of each destination communication module may be determined by combining the number of the slave communication module with the number information of the destination communication module. For example, if the current slave communication module is P1, and the transmission application information sent by the current slave communication module may include the number "P1" of the slave communication module and the number information "4" of the destination communication modules, the numbers P2 to P5 of the four destination communication modules which are adjacent to P1 and correspond to the destination communication module may be determined according to the transmission application information.
In S302, according to the transmission application information and pre-stored occupation information, pre-estimated occupation information corresponding to the target transmission task is determined, where the occupation information is used to indicate occupation conditions of each communication module in a ring line in the data transmission system.
In the embodiment of the present application, the occupancy information is used to indicate the occupancy of each communication module in a ring line in the data transmission system. For a communication module, the occupation condition comprises two states of occupied state or unoccupied state, wherein the occupied state of the communication module means that the communication module currently has a task of receiving data, and the data cache space of the communication module is occupied. Specifically, for a communication module, as long as it needs to receive data sent by other communication modules, the communication module is in an occupied state; if the communication module only sends data to other communication modules and does not receive data, or the communication module does not send data and does not receive data, the communication module is in an unoccupied state.
The pre-stored occupation information is the occupation condition of each communication module in the current annular circuit stored by the main communication module; and on the premise that the estimated occupation information corresponding to the target transmission task is used for representing the occupation condition of each communication module in the current annular line, the estimated occupation information is added with the information of the communication module required to be occupied by the target transmission task, and the occupation condition of each communication module in the annular line after the target transmission task is executed is estimated.
In one embodiment, the pre-stored occupancy information may be specifically stored in a register DIE _ USE of the primary communication module.
After the transmission application information is acquired, application occupancy information use _ req corresponding to the target transmission task can be determined according to the transmission application information. And then, according to the application occupancy information USE _ req and the pre-stored occupancy information USE _ save read from the register DIE _ USE, the estimated occupancy information of the current target transmission task after estimation execution can be determined.
As a possible implementation manner, a binary one-hot code one-hot including n data bits may be used to represent the occupation statuses of n communication modules in the data transmission system, where the one-hot code sequentially represents the occupation statuses of communication modules with numbers from small to large in the data transmission system according to the sequence from low to high of the data bits, "1" represents occupied, "0" represents unoccupied. After the application occupancy information use _ req and the pre-stored occupancy information use _ save are determined, bitwise or operation can be performed on the application occupancy information use _ req and the pre-stored occupancy information use _ save to obtain the estimated occupancy information use _ predict ═ use _ req | use _ save. If each data bit of the estimated occupation information is 1, determining that each communication module in the current annular circuit is occupied to form a data loop if a target transmission task is added. If at least one data bit of '0' exists in the estimated occupation information, it is determined that the unoccupied communication module still exists in the current ring line even if the target transmission task is added, and a data loop cannot be formed.
In S303, if the estimated occupation information indicates that there is an unoccupied communication module in the ring line, sending first transmission indication information to the slave communication module to indicate the slave communication module to perform the target transmission task.
After the estimated occupation information is determined, if the communication module of the ring line is still unoccupied after the target transmission task is determined to be added according to the estimated occupation information, for example, when at least one data bit of "0" exists in the estimated occupation information use _ predict, it is determined that a data loop cannot be formed even if the target transmission task is added, and thus, the line deadlock cannot be caused. Therefore, at this time, first transmission instruction information, which is information for instructing the slave communication module to perform the target transmission task, may be transmitted to the slave communication module. For example, the first transmission indication information may identify that the slave communication module may currently perform the target transmission task by a value of "1".
In the embodiment of the application, the master communication module can determine the estimated occupation information corresponding to the target transmission task according to the transmission application information and the pre-stored occupation information, and when the estimated occupation information indicates that an unoccupied communication module exists in the ring circuit, send the first transmission indication information to the slave communication module to indicate the slave communication module to execute the target transmission task, so that the slave communication module can still exist the unoccupied communication module in the ring circuit when determining the target transmission task to execute through the interaction between the master communication module and the slave communication module, that is, the target transmission task can be executed again under the condition that a data loop cannot be caused, thereby avoiding the data loop from being deadlocked, avoiding the phenomenon of the loop from occurring, and improving the data transmission efficiency.
Optionally, the transmission application information includes information of a target direction, the target direction includes a clockwise direction and a counterclockwise direction, and determining pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information includes:
acquiring the occupation information of the target annular line corresponding to the target direction according to the information of the target direction;
and determining estimated occupation information corresponding to the target transmission task according to the transmission application information and the occupation information of the target annular line.
In the embodiment of the present application, in the data transmission system where the main communication module is located, the ring line specifically includes two lines, namely a clockwise ring line and a counterclockwise ring line. The clockwise ring line is a ring line with a clockwise data transmission direction, the anticlockwise ring line is a ring line with an anticlockwise data transmission direction, and the clockwise ring line and the anticlockwise ring line are parallel to each other and have opposite directions. Correspondingly, the occupation information pre-stored by the main communication module comprises: the first pre-stored occupation information corresponding to the clockwise annular line and the second pre-stored occupation information corresponding to the anticlockwise annular line. Specifically, the first pre-stored occupancy information and the second pre-stored occupancy information may be stored by two independent registers DIE _ USE1 and DIE _ USE2, respectively.
Correspondingly, the transmission application information in the embodiment of the present application includes information of a target direction, where the information of the target direction is used to indicate whether a data transmission flow of a target transmission task currently applied from the communication module is clockwise or counterclockwise. Specifically, the transmission application information may include: information of applicant (namely information of slave communication module), information of number of communication modules occupied by application and information of target direction.
In the embodiment of the application, the corresponding target circular line is determined specifically according to the information of the target direction, and the pre-stored occupation information of the target circular line is acquired. For example, if the target direction is clockwise, the target ring line is determined to be clockwise, and the register DIE _ USE1 is read to obtain the first pre-stored occupancy information USE _ save1 as the occupancy information of the target ring line. If the target direction is the counterclockwise direction, the target ring line is determined to be the counterclockwise ring line, and the second pre-stored occupancy information USE _ save2 is obtained as the occupancy information of the target ring line by reading the register DIE _ USE 2.
After the occupation information of the target annular line is obtained, the occupation condition of each communication module in the data transmission system after the target transmission task is executed is estimated according to the application occupation information analyzed from the transmission application information and the occupation information of the target annular line, and estimated occupation information corresponding to the target transmission task is obtained.
In the embodiment of the application, the target direction can be determined according to the current transmission application information, so that the occupation information of the corresponding target annular line can be accurately obtained, and whether the target annular line corresponding to the current target transmission task forms a data loop or not can be accurately determined, thereby avoiding the phenomenon of deadlock of the loop.
Optionally, the method further comprises:
and if the estimated occupation information represents that each communication module in the annular circuit is occupied, sending second transmission indication information to the slave communication module to indicate the slave communication module to suspend the target transmission task.
After the estimated occupation information is determined, if all communication modules of the ring line are occupied after the target transmission task is determined to be added according to the estimated occupation information, for example, if each data bit in the estimated occupation information use _ predict is 1, it is determined that if the target transmission task is added, a data loop is formed, and thus line deadlock is caused. Therefore, at this time, second transmission instruction information, which is information for instructing the slave communication module to suspend execution of the target transmission task, may be transmitted to the slave communication module. For example, the second transmission indication information may identify that the slave communication module is currently unable to perform the target transmission task by a value of "0".
In the embodiment of the application, when the fact that each communication module in the annular circuit is occupied is determined according to the estimated occupation information, the slave communication module can be indicated to suspend the target transmission task in time through the second transmission indication information, so that a data loop can be avoided, and the influence of circuit deadlock on data transmission of other communication modules of the data transmission system is avoided.
Optionally, after the sending the first transmission indication information to the slave communication module, the method further includes:
and updating the pre-stored occupation information according to the transmission application information.
In the embodiment of the application, after the first transmission instruction information is sent to the slave communication module, the slave communication module executes the target transmission task to occupy the target communication module in the data transmission system, so that the occupation situation of the communication module in the data transmission system changes, and the occupation information prestored in the master communication module needs to be updated.
In one embodiment, according to the transmission application information, application occupancy information use _ req of the slave communication module may be determined; and the pre-stored occupation information use _ save before the target transmission task is executed can be read from the register of the main communication module. And carrying out bitwise OR operation on the application occupancy information use _ req and the pre-stored occupancy information use _ save to obtain new occupancy information for storage, thereby realizing the updating of the pre-stored occupancy information. Illustratively, use _ req ═ use _ save | use _ save.
In the embodiment of the application, after the first transmission indication information is sent and the slave communication module is instructed to execute the target transmission task, the pre-stored occupation information can be updated in time according to the transmission application information, so that the occupation condition of the communication module of the data transmission system can be updated and recorded in time, the new pre-estimated occupation condition can be accurately determined when new transmission application information is received subsequently, a data loop is avoided in time, and the data transmission efficiency is improved.
Optionally, after the updating the pre-stored occupancy information according to the transmission application information, the method further includes:
acquiring transmission completion notification information corresponding to the target transmission task sent by the slave communication module;
and updating the pre-stored occupation information according to the transmission completion notification information.
In this embodiment of the application, the transmission completion notification message is feedback information sent to the master communication module by the slave communication module after the target transmission task is completed according to the first transmission instruction information.
After the pre-stored occupation information is updated according to the transmission application information, when a transmission completion notification message corresponding to the target transmission task sent from the communication module is received, the current target transmission task is completed, occupation of the communication module in the data transmission system is removed, and at this time, the pre-stored occupation information needs to be updated again correspondingly. Specifically, the transmission completion notification message may also carry information of the slave communication module and information of the destination communication module, and the master communication module deletes the occupancy information corresponding to the target transmission task from the pre-stored occupancy information after receiving the transmission completion notification message, so as to obtain updated pre-stored occupancy information.
Optionally, the pre-stored occupation information includes occupation states and occupation times of each communication module, where the occupation states include an occupied state and an unoccupied state. The occupation state of each communication module can be stored through a preset register DIE _ USE, and a corresponding accumulator Count is set for each communication module, and the accumulator is used for storing the occupation times of the communication module.
Correspondingly, the updating the occupied information of the target ring line according to the transmission completion notification message includes:
determining the number of each target communication module occupied by the completed target transmission task according to the transmission completion notification message;
according to the number of each target communication module occupied by the target transmission task, subtracting 1 from the corresponding occupied number of the target communication module in the occupied information;
and updating the occupied state of the communication module with the occupied times equal to 0 after subtracting 1 into the unoccupied state.
In the embodiment of the application, the transmission completion notification message sent from the communication module can be received, and the pre-stored occupation information is further updated according to the transmission completion notification message, so that the occupation condition of the communication module of the data transmission system can be timely updated and recorded, the follow-up process of accurately determining the new estimated occupation condition when receiving the new transmission application information can be ensured, a data loop can be timely avoided, and the data transmission efficiency is improved.
By way of example and not limitation, the following describes the above-described data transmission method with a data transmission system including 8 communication modules from P0 to P7, and including two ring lines, a clockwise ring line and a counterclockwise ring line, as an example:
the master communication module respectively stores communication module occupation information USE _ save1 on a clockwise ring line and communication module occupation information USE _ save2 on a counterclockwise ring line through two independent registers DIE _ USE1 and DIE _ USE 2. The occupation information may be represented by the above binary one-hot, and the occupation statuses of the communication modules with the numbers from small to large in the data transmission system are sequentially represented in the order from low to high, "1" represents occupied, "0" represents unoccupied. For example, use _ save1 — 00001111 indicates that on the clockwise ring line, the communication modules P0 to P3 are occupied, and the communication modules P4 to P7 are unoccupied.
The transmission application information of the embodiment of the present application may be represented by data in a 7-bit binary format as shown in fig. 4. The highest bit (bit) of the transmission application information (abbreviated as direction bit) is used for storing information of a target direction, the direction bit represents a clockwise direction by a binary value "1", and represents a counterclockwise direction by a binary value "0". The 3 bits of data after the direction bit are used for storing the number of communication modules occupied by the data stream of the currently applied target transmission task, and the three bits of data are simply called number bits. The lowest 3 bits (referred to as start point) of the data are used to store the number of the starting communication module of the data stream of the target transmission task, i.e. the number of the applicant (slave communication module) of the target transmission task. For example, if the current slave communication module is P1, the target direction is clockwise, and the destination communication modules are P2 to P5, that is, 4 communication modules behind P1 need to be occupied continuously, the corresponding transmission application information is: 1100001. according to the transmission application information, it can be determined that the communication modules requested to be occupied by the slave communication modules include P2-P5, and the corresponding request occupation information use _ req is: 00111100.
since the target direction is clockwise, the occupancy information use _ save1 pre-stored in the clockwise ring line may be obtained, and then bit-wise or operation is performed on use _ req and use _ save1, so as to obtain the corresponding estimated occupancy information use _ predicted-use _ save1| use _ req ═ 00001111|00111100 ═ 00111111. Since the estimated occupation information use _ predict is not equal to '11111111111', even if the target transmission task is added, a data loop cannot be formed, and line deadlock cannot be caused. Therefore, at this time, the first transmission instruction information carrying the identifier "1" may be sent to the slave communication module, instructing the slave communication module to perform the target transmission task.
Example three:
fig. 5 is a flowchart illustrating a second data transmission method provided in the embodiment of the present application, where the data transmission method is applied to a slave communication module in a data transmission system according to the first embodiment, and is detailed as follows:
in S501, transmission application information corresponding to the target transmission task is sent to the master communication module.
Step S501 in the embodiment of the present application corresponds to step S301 in the second embodiment, and when the slave communication module needs to execute the target transmission task, the transmission application information corresponding to the target transmission task is sent to the master communication module.
In one embodiment, the transmission application information may include identification information of the slave communication module and information of the destination communication module corresponding to the target transmission task.
In one embodiment, the transmission application information may further include information of the target direction.
In S502, if first transmission instruction information returned by the main communication module according to the transmission application information is received, the target transmission task is executed.
Step S502 in the embodiment of the present application corresponds to step S303 in the second embodiment, and the meaning of the first transmission instruction information is the same as that in the second embodiment. And when the slave communication module receives the first transmission indication information, the slave communication module determines that a data loop cannot be caused currently and executes a target transmission task. In one embodiment, the targeted delivery task includes: and sequentially transmitting the data from the communication module to each destination communication module along the target direction through a target ring line (clockwise ring line or anticlockwise ring line) corresponding to the target direction, thereby realizing data broadcasting from the communication module.
In the embodiment of the application, the slave communication module sends the transmission application information to the master communication module when the target transmission task needs to be executed, so that the slave communication module executes the target transmission task when receiving the first transmission indication information, a data loop can be avoided, the phenomenon of deadlock of the loop is avoided, and the data transmission efficiency is improved.
Optionally, the method further comprises:
and if second transmission indication information returned by the main communication module according to the transmission application information is received, the target transmission task is suspended from being executed.
Optionally, the method further comprises:
after the target transmission task is executed, sending a transmission completion notification message corresponding to the target transmission task to the main communication module to indicate the main communication module to update pre-stored occupation information; wherein the occupation information is used for representing the occupation situation of each communication module in the ring line.
In the embodiment of the application, the slave communication module executes the target transmission task according to the first transmission indication information, and sends a corresponding transmission completion notification message to the master communication module after the target transmission task is executed. The transmission completion notification message can comprise the information of the slave communication module and the information of the target communication module, so that the master communication module can update the occupation information prestored in the master communication module in time and update and record the occupation condition of the communication module of the data transmission system in time according to the transmission completion notification message, the follow-up new estimated occupation condition can be accurately determined when new transmission application information is received, a data loop is avoided in time, and the data transmission efficiency is improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Example four:
fig. 6 is a schematic structural diagram of a first data transmission device provided in an embodiment of the present application, where the first data transmission device is applied to the above-mentioned main communication module, and for convenience of description, only the parts related to the embodiment of the present application are shown:
the first data transmission device includes: the transmission application information acquiring unit 61, the estimated occupancy information determining unit 62, and the first transmission instruction information transmitting unit 63:
a transmission application information acquiring unit 61 configured to acquire transmission application information corresponding to a target transmission task sent from a communication module;
a pre-estimated occupation information determining unit 62, configured to determine pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, where the occupation information is used to indicate occupation conditions of each communication module in an annular line of the data transmission system;
a first transmission indication information sending unit 63, configured to send first transmission indication information to the slave communication module to indicate the slave communication module to execute a target transmission task if the estimated occupation information indicates that there is an unoccupied communication module in the ring circuit.
Optionally, the transmission application information includes information of a target direction, where the target direction includes a clockwise direction and a counterclockwise direction, and the estimated occupation information determining unit 62 is specifically configured to obtain, according to the information of the target direction, occupation information of a target ring line corresponding to the target direction; and determining estimated occupation information corresponding to the target transmission task according to the transmission application information and the occupation information of the target annular line.
Optionally, the first data transmission apparatus further includes:
and a second transmission indication information sending unit, configured to send second transmission indication information to the slave communication module to indicate the slave communication module to suspend the target transmission task, if the estimated occupancy information indicates that each of the communication modules in the ring line is occupied.
Optionally, the first data transmission apparatus further includes:
and the first updating unit is used for updating the pre-stored occupation information according to the transmission application information.
Optionally, the first data transmission apparatus further includes:
a second updating unit, configured to obtain transmission completion notification information corresponding to the target transmission task sent by the slave communication module; and updating the pre-stored occupation information according to the transmission completion notification information.
Fig. 7 is a schematic structural diagram of a second data transmission apparatus provided in an embodiment of the present application, where the second data transmission apparatus is applied to the slave communication module, and for convenience of description, only the parts related to the embodiment of the present application are shown:
the second data transmission apparatus includes: transmission application information sending unit 71 and target transmission task execution unit 72:
a transmission application information sending unit 71, configured to send transmission application information corresponding to the target transmission task to the main communication module;
and a target transmission task executing unit 72, configured to execute the target transmission task if first transmission instruction information returned by the main communication module according to the transmission application information is received.
Optionally, the second data transmission apparatus further includes:
a transmission completion notification message sending unit, configured to send, to the main communication module, a transmission completion notification message corresponding to the target transmission task after the target transmission task is executed, so as to instruct the main communication module to update pre-stored occupation information; wherein the occupation information is used for representing the occupation situation of each communication module in the ring line.
It should be noted that, for the information interaction, execution process, and other contents between the above-mentioned devices/units, the specific functions and technical effects thereof are based on the same concept as those of the embodiment of the method of the present application, and specific reference may be made to the part of the embodiment of the method, which is not described herein again.
Example five:
fig. 8 is a schematic diagram of an electronic device provided in an embodiment of the present application. As shown in fig. 8, the electronic apparatus 8 of this embodiment includes: a data transmission system 80, a memory 81 and a computer program 82, such as a data transmission program, stored in said memory 81 and operable on a communication module of said data transmission system 80. The communication module implements the steps in the above-described embodiments of the data transmission method, such as steps S301 to S303 shown in fig. 3 or steps S501 to S502 shown in fig. 5, when executing the computer program 82. Alternatively, the communication module of the data transmission system 80 executes the computer program 82 to implement the functions of the modules/units in the device embodiments, such as the function from the transmission application information acquiring unit 61 to the estimated occupancy information determining unit 62 shown in fig. 6, or such as the function from the transmission application information sending unit shown in fig. 7 to the target transmission task executing unit 72.
Illustratively, the computer program 82 may be partitioned into one or more modules/units that are stored in the memory 81 and executed by the processor 80 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 82 in the electronic device 8.
The electronic device 8 may be a desktop computer, a notebook, a palm computer, or other computing devices. The electronic device may include, but is not limited to, a data transmission system 80, a memory 81. Those skilled in the art will appreciate that fig. 8 is merely an example of an electronic device 8, and does not constitute a limitation of the electronic device 8, and may include more or fewer components than shown, or some of the components may be combined, or different components, e.g., the electronic device may also include input-output devices, network access devices, buses, etc.
The communication module included in the data transmission system 80 may be a chip module, which is an independent processing unit, or may be a processing unit formed by packaging a plurality of chip modules in a data transmission system.
The storage 81 may be an internal storage unit of the electronic device 8, such as a hard disk or a memory of the electronic device 8. The memory 81 may also be an external storage device of the electronic device 8, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the electronic device 8. Further, the memory 81 may also include both an internal storage unit and an external storage device of the electronic device 8. The memory 81 is used for storing the computer program and other programs and data required by the electronic device. The memory 81 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other ways. For example, the above-described apparatus/electronic device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer-readable medium may contain suitable additions or subtractions depending on the requirements of legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer-readable media may not include electrical carrier signals or telecommunication signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included in the present application.
Claims (10)
1. A data transmission system, characterized in that the data transmission system comprises a plurality of communication modules, and a ring line connecting each of the communication modules in series; the communication module comprises a master communication module and a slave communication module;
the master communication module is used for acquiring transmission application information corresponding to the target transmission task sent by the slave communication module; determining pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, wherein the occupation information is used for representing the occupation condition of each communication module in the annular circuit; if the estimated occupation information indicates that the annular circuit has unoccupied communication modules, the main communication module sends first transmission indication information to the slave communication module to indicate the slave communication module to execute the target transmission task;
the slave communication module is used for sending the transmission application information corresponding to the target transmission task to the master communication module; and if the first transmission indication information returned by the main communication module according to the transmission application information is received, executing the target transmission task.
2. A data transmission method applied to the master communication module in the data transmission system according to claim 1, comprising:
acquiring transmission application information corresponding to a target transmission task sent from a communication module;
determining pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and pre-stored occupation information, wherein the occupation information is used for representing the occupation condition of each communication module in a ring line of the data transmission system;
and if the estimated occupation information indicates that the annular circuit has an unoccupied communication module, sending first transmission indication information to the slave communication module to indicate the slave communication module to execute the target transmission task.
3. The data transmission method according to claim 2, wherein the transmission application information includes information of a target direction, the target direction includes a clockwise direction and a counterclockwise direction, and the determining the pre-estimated occupation information corresponding to the target transmission task according to the transmission application information and the pre-stored occupation information includes:
acquiring occupation information of a target annular line corresponding to the target direction according to the information of the target direction;
and determining estimated occupation information corresponding to the target transmission task according to the transmission application information and the occupation information of the target annular line.
4. The data transmission method of claim 2, wherein the method further comprises:
and if the estimated occupation information represents that each communication module in the annular circuit is occupied, sending second transmission indication information to the slave communication module to indicate the slave communication module to suspend the target transmission task.
5. The data transmission method according to claim 2, further comprising, after said sending the first transmission indication information to the slave communication module:
and updating the pre-stored occupation information according to the transmission application information.
6. The data transmission method according to claim 5, wherein after the updating the pre-stored occupation information according to the transmission application information, further comprising:
acquiring transmission completion notification information corresponding to the target transmission task sent by the slave communication module;
and updating the pre-stored occupation information according to the transmission completion notification information.
7. A data transmission method applied to the slave communication module in the data transmission system according to claim 1, comprising:
transmitting transmission application information corresponding to the target transmission task to the main communication module;
and if first transmission indicating information returned by the main communication module according to the transmission application information is received, executing the target transmission task.
8. The data transmission method of claim 7, wherein the method further comprises:
after the target transmission task is executed, sending a transmission completion notification message corresponding to the target transmission task to the main communication module to indicate the main communication module to update pre-stored occupation information; wherein the occupation information is used for representing the occupation condition of each communication module in the ring line.
9. An electronic device, characterized in that the electronic device comprises a data transmission system according to claim 1.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a communication module of a data transmission system, carries out the steps of the method according to any one of claims 2 to 6 or carries out the steps of the method according to any one of claims 7 to 8.
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