CN109617767A - A kind of real-time adjustment method and device of the loop back processing being of message in the chips - Google Patents
A kind of real-time adjustment method and device of the loop back processing being of message in the chips Download PDFInfo
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- CN109617767A CN109617767A CN201910131616.5A CN201910131616A CN109617767A CN 109617767 A CN109617767 A CN 109617767A CN 201910131616 A CN201910131616 A CN 201910131616A CN 109617767 A CN109617767 A CN 109617767A
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- message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
- H04L45/74591—Address table lookup; Address filtering using content-addressable memories [CAM]
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- Computer Networks & Wireless Communication (AREA)
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- Debugging And Monitoring (AREA)
Abstract
Present invention discloses the real-time adjustment methods and device of a kind of message loop back processing being in the chips, which comprises the loopback number that is pre-configured with the identification information of debugging message in the chips and will debug；Message is sent, judges whether message is debugging message according to the identification information and transmitted message identification information that are pre-configured with debugging message, if so, it is the debugging identification information for debugging message that identification message is arranged in message identification information；Judge whether identification message is debugs whether message and actual rings round trip number are equal to the loopback number that is pre-configured with and will debug to debugging identification information, if being, saves the processing information of message in the chip into debugging register.The present invention realizes the real-time debugging to message loop back processing being, and the difficulty of chip message loop back processing being debugging greatly reduces, and greatly improves debugging efficiency when chip message loop back processing being, shortens the chip development period.
Description
Technical field
The present invention relates to a kind of message debugging techniques, more particularly, to a kind of real-time tune of message loop back processing being in the chips
Method for testing and device.
Background technique
In complicated network chip design, to adapt to a variety of different network protocols, various types of messages are from difference
Chip network entrance enter after chip processing and be sent to the outlet of each chip network again, during this message be frequently necessary to by
Loop back processing being, and loopback number is indefinite.
When traditional message is debugged, the message with debugging identification information can be sent by CPU, make chip in the processing message
When can store message debugging identification information to register, to identify the message when entrance message is handled, and store
The Debugging message of the message, and then be used to analyze debugging.
But since register is once written over, which can only be primary by storage, i.e., can only store and be sent into core for the first time
The message information of piece can not debug the message of loop back processing being.As shown in Figure 1.The technology can only be sent out in debugging using CPU
Send the special message with debugging identification information, and the message that chip network interface cannot be used to send, because of chip network
Interface can not directly transmit the message with debugging identification information.Simultaneously the technology can only stored messages entrance message processing when
Message information this time, for the message of loop back processing being can not stored messages effective information debug.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of the real-time of message loop back processing being in the chips is provided
Adjustment method and device.
To achieve the above object, the following technical solutions are proposed: the real-time debugging of message loop back processing being in the chips by the present invention
Method, comprising:
S1, is pre-configured with Debugging message and a counting memory in the chips, and the Debugging message includes debugging message
Message identification information and the first loopback number, the counting memory are used for the second loopback number of recorded message；
S2 sends message, judges whether the message is debugging report according to the message identification information in the Debugging message
Text, if so, it is the debugging identification information for debugging message that identification message is arranged in the message identification information；
S3, judge the debugging identification information whether identification message for debugging message and the second loopback number whether etc.
In the first loopback number, if being, the processing information of the message in the chip is saved into debugging register.
Preferably, in S1, count is incremented in a message loop back processing being of every process for the counting memory.
Preferably, in S2, message is sent from chip network interface or CPU.
Preferably, in S2, if the message identification information in message is consistent with preconfigured message identification information, judge
Message is debugging message.
Preferably, in S2, by the debugging home position 1 in message identification information, it is denoted as the debugging identification information.
Preferably, the debugging identification information continues to be fed into the subsequent module of chip with message.
Preferably, in the S3, if the second loopback number is not equal to the first loopback number, message continues at loopback
Reason, until the second loopback number is equal to the first loopback number.
Present invention further teaches another technical solutions: a kind of real-time debugging dress of message loop back processing being in the chips
It sets, comprising:
The Debugging message processing module being set to before the entrance message processing module of chip, the Debugging message handle mould
Block includes Debugging message presetting module, loopback number statistical module and information preservation module,
The Debugging message presetting module includes the report for debugging message for being pre-configured with Debugging message, the Debugging message
Literary identification information and the first loopback number, and for judging that the message is according to the message identification information in the Debugging message
No is debugging message, if so, it is the debugging identification information for debugging message that identification message is arranged in the message identification information；
The loopback number statistical module is used for the second loopback number of recorded message, and for judging second loopback
Whether number is equal to the first loopback number；
The information preservation module is used in the debugging identification information be debugging message and the second loopback number etc.
When the first loopback number, the processing information of the message in the chip is saved into debugging register.
Preferably, described device further includes CPU and chip network interface, sends report from the CPU or chip network interface
Text gives Debugging message processing module.
Preferably, the debugging identification information continues to be fed into the subsequent module of chip with message, the subsequent module packet
Include the entrance message processing module being connected with Debugging message processing module, the message being connected with entrance message processing module letter
Cease memory module, and with message information memory module and the outlet message processing module (MPM) being connected with Debugging message processing module.
The beneficial effects of the present invention are: the present invention sends special debugging message independent of CPU, chip network is connect
The common message that mouth is sent can also be debugged, and can store accurately specified loopback number simultaneously for the message of loop back processing being
Message information, realize real-time debugging to message loop back processing being, the difficulty of chip message loop back processing being debugging greatly reduce
Degree greatly improves debugging efficiency when chip message loop back processing being, shortens the chip development period.
Detailed description of the invention
Fig. 1 is the functional block diagram of existing message debugging；
Fig. 2 is the functional block diagram of message debugging apparatus of the present invention；
Fig. 3 is the flow diagram of message adjustment method of the present invention.
Specific embodiment
Below in conjunction with attached drawing of the invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention.
The real-time adjustment method and device of a kind of disclosed message loop back processing being in the chips, by entrance
Before message processing module (MPM), Debugging message processing module is added, message loop back processing being number is counted, is preset simultaneously
The identification information of message will be debugged and the message information after loopback how many times will be debugged, realized in specified loopback
After number, the purpose that message information at this time carries out Commissioning Analysis is recorded.
In conjunction with shown in Fig. 2 and Fig. 3, a kind of real-time debugging side of disclosed message loop back processing being in the chips
Method, comprising:
S1, is pre-configured with Debugging message and a counting memory in the chips, and the Debugging message includes debugging message
Message identification information and the first loopback number, the counting memory are used for the second loopback number of recorded message.
Specifically, the present invention increases a Debugging message processing module, module tool before entrance message processing module
Body includes a Debugging message presetting module, loopback number statistical module and information preservation module, wherein Debugging message presetting module
The first loopback number checkCnt for presetting the message identification information that will debug message He will debug message,
In, whether message identification information is debugging message for match cognization message, when implementation, may include type of message, message
Source address etc.；First loopback number is used to identify the loopback number of debugging message.Debugging message presetting module can adopt when implementing
With CAM (Content Addressable Memory, content adressable memory).
Include a counting memory in loopback number statistical module, unites for the second loopback number to debugging message
Meter, is denoted as loopCnt, and when implementation, it is 0 that its initial value, which is arranged, and message is every to pass through a loop back processing being, and loopCnt adds 1.
S2 sends message, judges whether the message is debugging report according to the message identification information in the Debugging message
Text, if so, it is the debugging identification information for debugging message that identification message is arranged in the message identification information.
Specifically, due to increasing the Debugging message processing module of configuration message identification information, so message is can be by
CPU or chip network interface are sent, and message initially enters the Debugging message presetting module of Debugging message processing module, Debugging message
Presetting module judges whether the message is debugging message according to the message identification information configured in it: specifically judging in the message
Whether message identification information matches with preset message identification information, if matching, which is debugging message, and
It is the debugging identification information for debugging message that identification message is arranged in message identification information, specifically by message identification in the present embodiment
Debugging marker in information, which is drawn high, sets 1, is denoted as isDebugPkt, i.e., when debugging marker is 1, is identified as debugging message.
The debugging identification information can continue together to be sent to message subsequent module, and (message information memory module i.e. shown in Fig. 2 goes out
Mouth message processing module (MPM), and it is looped back to Debugging message processing module) in.If not debugging message, the then message identification of the message
Information is then mismatched with message identification information preset in CAM.
S3, judge the debugging identification information whether identification message for debugging message and the second loopback number whether etc.
In the first loopback number, if being, the processing information of the message in the chip is saved into debugging register.
It specifically, whether is debugging message according to above-mentioned debugging identification information judgment, even above-mentioned isDebugPkt is 1,
Then it is identified as debugging message.
Judge whether the second loopback number is equal to the first loopback number, specifically, is sent into debugging for the first time in message
When message processing module, loopCnt is 0, at this time if the message identification information received and preset message identification in CAM
Debugging marker in message identification information is then drawn high and sets 1, is denoted as isDebugPkt by information matches, the debugging identification information
It can continue to be sent in subsequent module together with message.Subsequent packet is every to pass through a loop back processing being, and loopCnt adds 1, if judgement
IsDebugPkt be 1 and first loopback number checkCnt be equal to the second loopback number loopCnt, then save message at this time
The relevant information of portion's processing is into debugging register in the chip, and otherwise message continues loop back processing being, until the second loopback number
LoopCnt is equal to the first loopback number checkCnt, then saves the relevant information of message at this time portion's processing in the chip to tune
It tries in register.
If the first loopback number checkCnt is 0 in CAM, i.e., the message information that will be debugged is not by loopback
The initial message of reason, then the message information saved is exactly initial message information；If the first loopback number checkCnt be greater than etc.
In 1, i.e., the message information that will be debugged is the message that have passed through loop back processing being at least once, and step S3 is particularly critical at this time, this
When message identification information compared initial message identification information and be varied, it is only necessary to judge the identification information that message carries
Whether isDebugPkt is 1, rather than compares whether the identification information prestored in message identification information and CAM at this time matches,
Then until loopCnt is equal to checkCnt, the message relevant information that portion is handled in the chip stored at this time can be used to adjust
Examination analysis.
The solution of the present invention is illustrated with a specific embodiment below:
By taking the real-time debugging for realizing the message P for needing loop back processing being 5 times as an example, the identification information of the message includes message class
Type, message source address etc., it is assumed that be converted into 2 binary informations and be recorded as 0xA500005A, and key identification information be high 8bit and
Low 8bit, i.e. 0xA55A.Assuming that the information of message P of the storage after 2 loop back processing beings will be debugged, i.e. checkCnt is
2。
The first step configures CAM.Presetting message key identification information is 0xA55A, and will be debugged at storage loopback
The loopback number checkCnt for managing message information is 2；
Second step sends message.Send message from chip network interface or CPU, the message key identification information with
0xA55A matches；
Third step, according to CAM configuration information, when message is sent into Debugging message processing module for the first time, the message P that receives
Key identification information and preset message identification information matches in CAM, by the debugging marker in the identification information of message P
It draws high and sets 1, be denoted as isDebugPkt, which can continue to be sent in subsequent module together with message P；
4th step, the identification information isDebugPkt of message P is set to 1 in the third step, but in first time processing report
LoopCnt is 0 when literary P, is not equal to checkCnt, therefore does not save this message information, and message enters loop back processing being process.Together
Reason, loopCnt is 1 after 1 loop back processing being, is still not equal to checkCnt, therefore does not save this message information, message
Go successively to loop back processing being process.After loop back processing being 2 times, loopCnt 2 is equal to checkCnt, that is, can be reserved for report at this time
Literary information is used to Commissioning Analysis.
The present invention program is effective for all types of messages, it is only necessary to according to different type message, corresponding message be arranged
Identification information makes itself and identification information match corresponding in CAM, further according to the loopback number of setting, can be realized to all kinds of reports
Message information record after the corresponding number of literary loop back processing being process loopback, achievees the purpose that debug in real time.
The present invention can store use for the corresponding message information of loopback number specified during message loop back processing being
Carry out Commissioning Analysis, can greatly shorten the Commissioning Analysis time of message loop back processing being, the debugging for reducing message loop back processing being is difficult
Degree, and then shorten the chip development period, reduce cost.And the present invention can also be deposited by the depth and debugging for increasing CAM
The number of device, the loopback Debugging message of the multiple specified loopback number of record support in primary debugging.
Technology contents and technical characteristic of the invention have revealed that as above, however those skilled in the art still may base
Make various replacements and modification without departing substantially from spirit of that invention, therefore, the scope of the present invention in teachings of the present invention and announcement
It should be not limited to the revealed content of embodiment, and should include various without departing substantially from replacement and modification of the invention, and be this patent Shen
Please claim covered.
Claims (10)
1. a kind of real-time adjustment method of message loop back processing being in the chips characterized by comprising
S1, is pre-configured with Debugging message and a counting memory in the chips, and the Debugging message includes the message for debugging message
Identification information and the first loopback number, the counting memory are used to record the second loopback number of the message that will be debugged；
S2 sends message, judges whether the message is debugging message according to the message identification information in the Debugging message, if
It is that it is the debugging identification information for debugging message that identification message is then arranged in the message identification information；
S3 judges whether identification message for debugging message and the second loopback number is equal to the to the debugging identification information
One loopback number saves the processing information of the message in the chip into debugging register if being.
2. the real-time adjustment method of the loop back processing being of message in the chips according to claim 1, which is characterized in that in S1,
Count is incremented in a message loop back processing being of every process for the counting memory.
3. the real-time adjustment method of the loop back processing being of message in the chips according to claim 1, which is characterized in that in S2,
Message is sent from chip network interface or CPU.
4. the real-time adjustment method of the loop back processing being of message in the chips according to claim 1, which is characterized in that in S2,
If the message identification information in message is consistent with preconfigured message identification information, message is judged to debug message.
5. the real-time adjustment method of the loop back processing being of message in the chips according to claim 1, which is characterized in that in S2,
By the debugging home position 1 in message identification information, it is denoted as the debugging identification information.
6. the real-time adjustment method of message loop back processing being in the chips according to claim 1 or 5, which is characterized in that institute
Debugging identification information is stated to continue to be fed into the subsequent module of chip with message.
7. the real-time adjustment method of the loop back processing being of message in the chips according to claim 1, which is characterized in that the S3
In, if the second loopback number is not equal to the first loopback number, message continues loop back processing being, until second loopback number etc.
In the first loopback number.
8. a kind of real time debugging device of message loop back processing being in the chips characterized by comprising
The Debugging message processing module being set to before the entrance message processing module of chip, the Debugging message processing module packet
Debugging message presetting module, loopback number statistical module and information preservation module are included,
The Debugging message presetting module includes the message mark for debugging message for being pre-configured with Debugging message, the Debugging message
Know information and the first loopback number, and for according to the message identification information in the Debugging message judge the message whether be
Message is debugged, if so, it is the debugging identification information for debugging message that identification message is arranged in the message identification information；
The loopback number statistical module is used for the second loopback number of recorded message, and for judging the second loopback number
Whether the first loopback number is equal to；
The information preservation module is used in the debugging identification information be debugging message and the second loopback number equal to the
When one loopback number, the processing information of the message in the chip is saved into debugging register.
9. the real time debugging device of the loop back processing being of message in the chips according to claim 8, which is characterized in that the dress
Setting further includes CPU and chip network interface, sends message from the CPU or chip network interface and gives Debugging message processing module.
10. the real time debugging device of the loop back processing being of message in the chips according to claim 8, which is characterized in that described
Debugging identification information continues to be fed into the subsequent module of chip with message, and the subsequent module includes and Debugging message processing module
The connected entrance message processing module, the message information memory module being connected with entrance message processing module, and and message
Information storage module and the outlet message processing module (MPM) being connected with Debugging message processing module.
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