CN110098869A - A kind of optical-fibre channel method for message transmission - Google Patents
A kind of optical-fibre channel method for message transmission Download PDFInfo
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- CN110098869A CN110098869A CN201910374633.1A CN201910374633A CN110098869A CN 110098869 A CN110098869 A CN 110098869A CN 201910374633 A CN201910374633 A CN 201910374633A CN 110098869 A CN110098869 A CN 110098869A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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Abstract
The invention belongs to avionics system onboard networks fields, propose a kind of optical-fibre channel method for message transmission.This method is applied to include: that optical-fibre channel is called to send data api interface when transmitting terminal；Data api interface, which is sent, from optical-fibre channel extracts application message and using data；Optical-fibre channel, which is obtained, according to application message sends the communication information；Assembling application message and application data is optical-fibre channel data；The communication information and optical-fibre channel data, assembling optical fiber channel data frame are sent according to optical-fibre channel；Send fiber channel data frame.
Description
Technical field
The invention belongs to avionics system onboard networks fields, are related to a kind of FC (optical-fibre channel, Fibre Channel, abbreviation
FC) the implementation method of message transmission independence.The independence of FC message transmission may be implemented through the invention, that is, realize and apply journey
The message id of sequence is mutually indepedent with FC communication information ID's, which kind of application program matched without paying close attention to FC network topology structure using
It sets communication information ID to be communicated, can effectively avoid changing the change for influencing FC network topology structure because of application messages ID
Change, and then influence the relevant upgrading of FC and maintenance, reduces the coupling of application program and the transmission of FC message, save FC product
Maintenance cost and total quality management.
Background technique
The avionics system airborne communication network of current version aircraft uses FC network, passes through FC reality between avionics system subsystem
Existing message communicating and interaction.Existing aircraft type project, the system unified planning application message ID of intersubsystem communication.FC net
Network needs to construct network topology according to application message ID, and generates corresponding FC network configuration data.Subsystem is carried out using FC
When message is sent, the api interface function for calling FC to provide, and be transmitted to using subsystem application message id as function input parameters
FC.FC is first depending on input parameter message ID, searches local FC allocation list, the corresponding communication information is obtained, secondly, that will use
Family needs the message sent to be sent to FC network.When subsystem realizes that FC carries out message sink, the api interface letter of FC offer is called
Number, and FC is transmitted to using the application message ID of subsystem sender as the input parameter of function.FC is first depending on input parameter
Message id searches local FC allocation list, obtains the corresponding communication information, secondly, to receiving message in specified queue.Foundation
Existing subsystem is applied and is had the following disadvantages: with FC information communication method
(1) subsystem application program with FC network topology and configuration data coupling than more serious, with software design principle
" high cohesion lower coupling " is not inconsistent.FC network topology and configuration data are associated with system application message ID.System application message ID hair
Changing then influences the variation of FC network topology and configuration data, will lead to the upgrading of FC network.
(2) it is unfavorable for model project total quality management and maintenance, the application message ID and FC network topology of systems organization
And configuration data needs to correspond.As system application message ID and FC network topology and inconsistent configuration data, influence
Intersubsystem communication is unfavorable for site technology condition managing and maintenance.
Summary of the invention
Goal of the invention:
For disadvantage present in the transmission of above-mentioned FC message, the message transmission based on optical-fibre channel that the invention proposes a kind of
Independence implementation method.The invention enables the transmission of system application message and FC network topology structure and network configuration, message transmission
System can independently of each other, while also realized to be received according to application message ID according to small queue mechanism, i.e. system application disappears
The change such as breath planning and scale, with FC network topology structure and network configuration, it is unrelated how message is transmitted.FC network topology structure
And network configuration change will not influence application message planning and scale change, need to only pay close attention to that FC network itself transmits asks
Topic.The present invention can effectively avoid changing the variation for influencing FC network topology structure because of application messages ID, and then influence
The relevant upgrading of FC and maintenance, reduce the coupling of application program and the transmission of FC message, save the maintenance cost of FC product, reduce
The total quality management of FC product.
Technical solution:
In a first aspect, proposing a kind of optical-fibre channel method for message transmission, it is applied to transmitting terminal, which is characterized in that described
Method includes:
Optical-fibre channel is called to send data api interface；
Data api interface, which is sent, from optical-fibre channel extracts application message and using data；
Optical-fibre channel, which is obtained, according to application message sends the communication information；
Assembling application message and application data is optical-fibre channel data；
The communication information and optical-fibre channel data, assembling optical fiber channel data frame are sent according to optical-fibre channel；
Send fiber channel data frame.
Second aspect proposes a kind of optical-fibre channel method for message transmission, is applied to transmitting terminal, which is characterized in that described
Method includes:
Create optical-fibre channel message queue；
Reception optical fiber channel data frame；
Fiber channel data frame is put into optical-fibre channel message queue；
It is received from optical-fibre channel message queue and applies data.
Optionally, creation optical-fibre channel message queue includes:
Create message queue list；
If being reached without fiber channel data frame, continue waiting for, otherwise, the logic for obtaining fiber channel data frame is compiled
Number, buffer zone address and application message ID；
Corresponding message queue is obtained according to application message ID query messages queue lists, if finding corresponding message
The logical number of fiber channel data frame and buffer zone address are then put into optical-fibre channel message queue by queue；If not finding
Corresponding message queue then creates corresponding message queue according to application message ID and is increased in message queue list,
And the logical number of fiber channel data frame and buffer zone address are put into optical-fibre channel message queue.
Optionally, query messages queue lists come obtain corresponding message queue refer to search application message message id with
The equal message queue of queue keyword in message queue list.
Optionally, increase message queue to refer into message queue list from the table tail of message queue table increase message team
Column form single linked list.
Optionally, the operation of message queue execution enqueue, which refers to, is put into phase for queue element (QE) logical number and buffer zone address
The message queue answered.
Optionally, if when message queue executes enqueue operation, message is sample message, when queue full, using covering
Lid mode；If message is queue message, when queue full, using the mode of discarding.
Optionally, it receives from optical-fibre channel message queue using data and includes:
Optical-fibre channel is called to receive data api interface；
Data api interface, which is received, from optical-fibre channel obtains application message ID；
It is extracted from optical-fibre channel message queue according to application message ID query messages queue lists if searching successfully
The logical number of fiber channel data frame, buffer zone address parse optical-fibre channel data according to logical number, buffer zone address
Frame receives and applies data.
If not finding corresponding message queue, reception result is returned.
The utility model has the advantages that
FC message proposed by the present invention sends mechanism, the small queue set-up mechanism of FC message and the small queue reception mechanism of FC message
It is an organic whole, it is indispensable.Send messages application information format variation, receive messages application information format be also required to
Variation.When the small queue set-up mechanism of FC message changes, the small queue reception mechanism of FC message is also required to change therewith.This hair
It is bright so that the transmission of system application message and FC network topology structure and network configuration, message transmission is mutually indepedent, while can also make
System realizes according to small queue mechanism and is received according to application message ID that the i.e. planning of system application message and scale etc. is changed,
With FC network topology structure and network configuration, it is unrelated how message is transmitted.FC network topology structure and network configuration change are not yet
It influences whether application message planning and scale change, need to only pay close attention to the problem of FC network itself transmits.The present invention can be avoided effectively
Because application messages ID variation influences the variation of FC network topology structure, and then the relevant upgrading of FC and maintenance are influenced,
The coupling for reducing application program and the transmission of FC message, saves the maintenance cost of FC product, reduces the state of the art pipe of FC product
Reason.
Detailed description of the invention
Fig. 1 is that FC message sends mechanism.
Fig. 2 is the small queue set-up mechanism of FC message.
Fig. 3 is the small queue reception mechanism of FC message.
Specific embodiment
For a better understanding of the present invention, the present invention is further described in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, FC message transmission mechanism of the invention is as follows:
Step 100, data api interface sending application data are sent using calling FC；
Step 101, it extracts application message and applies data；
Step 102, FC is obtained according to application message send the communication information；
Step 103, assembling application message and application data is FC data；
Step 104, the communication information is sent according to FC, assembles FC data frame；
Step 105, FC data frame is sent.
In the step 100, FC sends data api interface and is supplied to subsystem application, for that will be sent to using data
Specified subsystem.It includes return type that FC, which sends data api interface, and function is bright, the information such as input parameter.Wherein, class is returned
For showing the interface implementing result, be worth indicates to run succeeded type for 0, and non-zero, expression executes failure.Inputting parameter includes message
ID, type of message, communication type, mailing address, the buffer zone address of message to be sent, the length etc. of message to be sent.Message
Type includes sample message and queue message.It is 2 that sample message, which requires receiving queue size, when queue full, using covering side
Formula.Queue message requires receiving queue size to be greater than 2, when queue full, using the mode of discarding.Communication type includes promptly disappearing
Breath, event message and flow message.Mailing address includes sources traffic address, purpose mailing address.It is specific that FC sends data api interface
Example is as shown in table 1.
Table 1FC sends data api interface attribute list
In the step 101, extraction application message, which refers to, is assembled into application message for api interface partial parameters information.It answers
It include message id, type of message, communication type, mailing address etc. with information.
In the step 101, extracts and refer to the information obtained in api interface parameter information using data.Using number
According to the buffer zone address including message to be sent, the length etc. of message to be sent.
In the step 102, the FC transmission communication information is obtained according to application message and refers to that foundation type of message and purpose are logical
Believe that address obtains and sends the communication information.
In the step 102, sending the communication information includes FC communication information ID, sources traffic address, purpose mailing address, is led to
Believe message priority etc., specific example is as shown in table 2.
Table 2FC sends data api interface attribute list
In the step 103, FC data include application message and using data.
In the step 104, FC data frame refers to FC frame head portion and FC data volume.FC frame head portion by FC protocol format about
It is fixed.FC data volume is FC data.
The present invention includes a kind of small queue set-up mechanism of FC message, the specific steps are as follows:
Step 200, message queue list is created；
Step 201, it if being reached without FC data frame, continues waiting for, otherwise goes to step 202；
Step 202, the logical number and buffer zone address of storage FC data frame are obtained；
Step 203, application message is obtained；
Step 204, query messages queue lists obtain corresponding message queue, if searching failure, go to step 205,
Otherwise step 207 is gone to；
Step 205, corresponding message queue is created；
Step 206, increase message queue into message queue list；
Step 207, message queue executes enqueue operation, goes to step 201.
In the step 200, message queue list refers to for dynamic managing message queues.The mode of management uses chained list
Mode.Message queue list includes at least message queue number, message queue node, message queue list head, message queue column
Table tail, message queue node it is subsequent.One message queue of every increase or deletion, message queue number increase or decrease 1.Specifically
As shown in table 3.
3 message queue list of table
In the step, message queue node includes at least queue keyword, queue element (QE) maximum number, queue pointer.
Message queue refers to corresponding queue corresponding to the message id of application message, and a message id corresponds to a message queue, at least
Including queue element (QE) number, queue heads, rear of queue, element pointer.Queue element (QE) includes at least logical number and buffer zone address.
Message queue node is specifically as shown in table 4, and message queue is specifically as shown in table 5, and element type is specifically as shown in table 6.
4 message queue node of table
5 message queue of table
6 element type of table
| Attribute | Attribute type | Attribute description |
| uiLogicId | Without symbol shaping | Logical number |
| uiMsgAddr | Without symbol shaping | Buffer zone address |
In the step 201,200 in FC data frame and step 104 are caused.
In the step 202, logical number is the element number of hardware storage FC data frame.Buffer zone address is processor
Store the address number of FC data frame.
In the step 203, application message is consistent in step 101.
In the step 204, query messages queue lists obtain corresponding message queue and refer to disappearing for lookup application message
Cease the ID message queue equal with queue keyword in message queue list.
In the step 205, message queue is consistent in step 200.When creating message queue, queue element (QE) initialization
It is 0, queue heads are initialized as 0, and rear of queue is initialized as 0.
In the step 206, increase message queue, which refers to message queue list from the table tail increase of message queue table, to disappear
Queue is ceased, single linked list is formed.
In the step 207, message queue executes enqueue operation and refers to by queue element (QE) logical number and buffer area
Location is put into corresponding message queue.
The present invention includes a kind of small queue reception mechanism of FC message, the specific steps are as follows:
Step 300, data api interface is received using calling FC to receive using data；
Step 301, application message ID is obtained；
Step 302, reception result is arranged if not finding corresponding message queue to lose in query messages queue lists
It loses, goes to step 308；
Step 303, the operation of message queue dequeue is executed, queue element (QE) logical number and buffer zone address are obtained；
Step 304, if message queue is not sky, step 306 is gone to；
Step 305, message queue is deleted from message queue list；
Step 306, FC data acquisition application data are parsed；
Step 307, data are applied in output, and setting reception result is successfully；
Step 308, reception result is returned.
In the step 300, FC receives data api interface and is supplied to subsystem application, receives for subsystem and applies number
According to.It includes return type that FC, which receives data api interface, and function is bright, the information such as output parameter.Wherein, return type is for showing
The interface implementing result, be worth indicates to run succeeded for 0, non-zero, and expression executes failure.Output parameter includes message id, communicatedly
Location receives message format regional address, receives message-length etc..It is as shown in table 7 that FC receives data api interface specific example.
Table 7FC receives data api interface attribute list
In the step 302, message queue list and step 200 are caused.Message queue is consistent with step.
In the step 303, message queue and step 200 are caused.Logical number and buffer zone address and step 202 are consistent.
In the step 306, FC data frame is consistent in step 104.
FC message proposed by the present invention sends mechanism, the small queue set-up mechanism of FC message and the small queue reception mechanism of FC message
It is an organic whole, it is indispensable.Send messages application information format variation, receive messages application information format be also required to
Variation.When the small queue set-up mechanism of FC message changes, the small queue reception mechanism of FC message is also required to change therewith.This hair
It is bright so that the transmission of system application message and FC network topology structure and network configuration, message transmission is mutually indepedent, while can also make
System realizes according to small queue mechanism and is received according to application message ID that the i.e. planning of system application message and scale etc. is changed,
With FC network topology structure and network configuration, it is unrelated how message is transmitted.FC network topology structure and network configuration change are not yet
It influences whether application message planning and scale change, need to only pay close attention to the problem of FC network itself transmits.The present invention can be avoided effectively
Because application messages ID variation influences the variation of FC network topology structure, and then the relevant upgrading of FC and maintenance are influenced,
The coupling for reducing application program and the transmission of FC message, saves the maintenance cost of FC product, reduces the total quality management of FC product.
Claims (8)
1. a kind of optical-fibre channel method for message transmission is applied to transmitting terminal, which is characterized in that the described method includes:
Optical-fibre channel is called to send data api interface；
Data api interface, which is sent, from optical-fibre channel extracts application message and using data；
Optical-fibre channel, which is obtained, according to application message sends the communication information；
Assembling application message and application data is optical-fibre channel data；
The communication information and optical-fibre channel data, assembling optical fiber channel data frame are sent according to optical-fibre channel；
Send fiber channel data frame.
2. a kind of optical-fibre channel method for message transmission is applied to receiving end, which is characterized in that the described method includes:
Create optical-fibre channel message queue；
Reception optical fiber channel data frame；
Fiber channel data frame is put into optical-fibre channel message queue；
It is received from optical-fibre channel message queue and applies data.
3. optical-fibre channel method for message transmission according to claim 2, which is characterized in that creation optical-fibre channel message queue
Include:
Create message queue list；
If being reached without fiber channel data frame, continue waiting for, otherwise, obtains the logical number of fiber channel data frame, delays
Rush regional address and application message ID；
Corresponding message queue is obtained according to application message ID query messages queue lists, if finding corresponding message queue
The logical number of fiber channel data frame and buffer zone address are then put into optical-fibre channel message queue；If not finding corresponding
Message queue, then create corresponding message queue according to application message ID and increased in message queue list, and
The logical number of fiber channel data frame and buffer zone address are put into optical-fibre channel message queue.
4. optical-fibre channel method for message transmission according to claim 3, which is characterized in that query messages queue lists obtain
Corresponding message queue is taken to refer to the message id for the searching application message message equal with queue keyword in message queue list
Queue.
5. optical-fibre channel method for message transmission according to claim 3, which is characterized in that increase message queue to message team
Refer in column list from the table tail of message queue table and increase message queue, forms single linked list.
6. optical-fibre channel method for message transmission according to claim 3, which is characterized in that message queue executes enqueue behaviour
Work, which refers to, is put into corresponding message queue for queue element (QE) logical number and buffer zone address.
7. optical-fibre channel method for message transmission according to claim 6, which is characterized in that execute enqueue in message queue
If message is sample message when operation, when queue full, using coverage mode；If message is queue message, work as queue full
When, using the mode of discarding.
8. optical-fibre channel method for message transmission according to claim 3, which is characterized in that connect from optical-fibre channel message queue
It receives using data and includes:
Optical-fibre channel is called to receive data api interface；
Data api interface, which is received, from optical-fibre channel obtains application message ID；
Optical fiber is extracted from optical-fibre channel message queue if searching successfully according to application message ID query messages queue lists
The logical number of channel data frame, buffer zone address parse fiber channel data frame according to logical number, buffer zone address, connect
It receives and applies data.
If not finding corresponding message queue, reception result is returned.
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