CN109558367A - Multibus processor MHAL method for routing - Google Patents
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- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
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- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
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Abstract
A kind of multibus processor MHAL method for routing disclosed by the invention, it is intended to the MHAL method for routing of multibus connection between processor is solved, the technical scheme is that；In step, route related information table is established in advance；In sending data routing step, three tables in route related information table are utilized by transmission data routing function, according to logical address LD, processor bus ports physical address destPD, native processor bus port physical address localPD and bus driver are searched from above-mentioned three tables respectively, corresponding bus driver is called, data packet is sent to the corresponding processor of nextPD by the corresponding bus of localPD；In receiving data step, data routing is received by the routing function completion of reception data, when receiving data, needs the data packet of routing forwarding, routes process forwarding number according to packet by data are sent.
Description
Technical field
The present invention relates to software wireless electrical domains, and in particular to multibus processor in a kind of software communications architecture
MHAL method for routing.
Background technique
Software communications architecture (SCA) provides a kind of open frame unrelated with realization for the design of software radio
Structure.SCA separates waveform application with bottom hardware and operating system by the structure being layered, and is provided and divided by CORBA technology
The processing environment of cloth realizes the portability of waveform.In order to meet different traffic demands, software radio hardware
Various processor would generally be used in Platform Designing, there are great differences in architecture and programming mechanism for various processors,
It is also different to the degree of support of CORBA.Common processor only has general processor GPP
(GeneralPurposeProcessor) CORBA, digital signal processor DSP and on-site programmable gate array FPGA one are supported
As do not support CORBA.Be suitable for the naming convention of processor below: GPP, which is represented, supports the processor of CORBA (to can be branch
Hold the DSP of CORBA)；DSP represents the processor for supporting C language, but does not support CORBA；FPGA represents the processor for supporting HDL,
CORBA is not also supported equally.Hardware Platform of Software Radio is one by general processor GPP and application specific processor DSP/FPGA
The heterogeneous processor platform of composition, the difference of the distributed heterogeneous characteristic bring Application development environ-ment of platform increase management and
The difficulty that component interconnects limits the flexibility of system.SCA current specifications is general processor by CORBA middleware
Component on GPP provides transparent Data Dissemination, i.e. component on GPP can be transferred data to another by CORBA
How a GPP component, position and data without being concerned about other side route.But this is for dedicated place as DSP/FPGA
Reason device simultaneously be not suitable for because they still not directly support CORBA middleware, between DSP/FPGA component and GPP component with
And the communication on difference DSP/FPGA between component is standardized dependent on modem stage hardware abstraction layer MHAL.Based on the soft of SCA
In part radio, provided with internal communication using CORBA middleware between GPP, GPP and DSP, GPP and FPGA, DSP with
FPGA, DSP are communicated with DSP, FPGA with FPGA uses modem stage hardware abstraction layer MHAL
(ModemHardwareAbstractLayer) it realizes.
MHAL standardizes the platform-neutral for solving waveform.MHAL is the traffic model of a bottom, it is by being hard
Bottom hardware and waveform components on part platform in different computing units provide the agreement and interface of standard, Lai Tigao waveform components
Portability.MHAL provides that hardware abstraction layer carries out data interaction by way of packet switch, and each data packet has IU
(In-Use), tetra- logical address LD field (LogicalDestination), Length and Payload fields.Information source program
When sending data, data are packaged by information source program by MHAL message format, the LD field of data packet be stay of two nights program logically
Location, standard interface function Mhal_Comm or the pushPacket function for then MHAL being called to provide drive data packet by bus
Dynamic program is sent to corresponding processor.When stay of two nights program receives data, after MHAL receives data packet, the logic of data packet is parsed
Address LD field, the corresponding readjustment stay of two nights program of calling logic address LD field.
MHAL standardizes the api interface and message format for the standard that defines, relatively simple to the description of data routing, only advises
Surely routing function is needed.Existing MHAL method for routing includes: when information source program sends data, and MHAL is reflected according to LD from LD and PD
Firing table searches the processor address PD of the corresponding stay of two nights program operation of logical address of this stay of two nights program
It (PhysicalDestinaion), is that input parameter calls bus driver with this PD, so that data packet is sent to PD pairs
The processor answered.When stay of two nights program receives data, MHAL believes according to LD from LD readjustment corresponding with the lookup of stay of two nights program map table
Su Chengxu is simultaneously called.There is the following disadvantage in existing MHAL method for routing:
The existing MHAL method for routing of one, do not support be between processor multibus radio station system.
The distribution of PD is all according to one PD of a processor in existing MHAL method for routing, is monobus between processor
Radio station system, existing method is adapted to.And multiple bus situation between processor is often related in present radio station system,
Typically it is exactly control bus and data/address bus and deposits.The general rate of control bus is lower, but real-time is high, is used for transmission control
Parameter.The general rate of data/address bus is high, but does not have hard real-time, is used for transmission business datum.Existing MHAL method for routing by
In one PD of a processor, when sending data, it is transmitted to the data packet of MHAL being only packaged by MHAL message format, MHAL
PD can be found according to LD, but a PD has corresponded to two buses, MHAL can not know which bus driver called.
Therefore, existing MHAL method for routing be not used between processor be multibus radio station system.
The existing MHAL method for routing of two, does not support the radio station system of processor multiport.
Existing MHAL method for routing when sending data, is transmitted to the data of MHAL being only packaged by MHAL message format
Packet, MHAL can find PD according to LD, and MHAL can not be determined to be sent from which port of bus, be not used in processor multiterminal
The radio station system of mouth.
The existing MHAL method for routing of three, does not support data packet routing forwarding.
Existing MHAL method for routing is the case where monobus interconnects entirely between being all based on processor, i.e., each processor passes through
One bus unique port can access every other processor, not consider at the A often having in present radio station system
Reason device between be connected with B processor, B processor is connected with C processor, C processor and A processor are not attached to, but A processor needs
The case where with C processor intercommunication, i.e., existing MHAL method for routing do not support data packet routing forwarding.
Summary of the invention
Purpose of the present invention place in view of the deficiency of the prior art provides and a kind of is deferring to MHAL specification completely
Under the premise of solve processor between multibus connection and processor need support MHAL method for routing in transposer station system.
Above-mentioned purpose of the invention can be reached by the following measures, a kind of multibus processor MHAL method for routing,
Three steps are routed including establishing route related information table, sending data routing and receiving data；
In establishing route related information table step, in advance according on processor bus type and bus port with bus port
Physical address PD is planned for minimum unit, and according to waveform number, component numerals, port numbering planning logic address LD, herein
On the basis of, according to the bus port object on the connection relationship of bus port physical address PD each between processor, each processor
The corresponding relationship of corresponding relationship, deployment of components situation and each LD and call back function that manage address PD and bus driver are established
Physical topology information table, PD and bus driver mapping table, LD and PD mapping table and LD and stay of two nights program map table；
In sending data routing step, completes to send data routing by transmission data routing function, send data and route function
Using in route related information table physical topology information table, PD and bus driver mapping table and LD and PD mapping table this
Three tables, according to logical address LD, from the processor bus end corresponding with stay of two nights program logical address is searched in PD mapping table LD
Mouth physical address destPD；According to destPD, corresponding next-hop processor bus port is searched from physical topology information table
Physical address nextPD and corresponding native processor bus port physical address localPD；According to localPD, from PD and always
The corresponding bus driver of native processor bus port is searched in line driver mapping table, is defeated with nextPD then
Enter parameter, calls corresponding bus driver, it is corresponding so that data packet is sent to nextPD by the corresponding bus of localPD
Processor；
It in receiving data step, completes to receive data routing by reception data routing function, receives data routing function and utilize
LD field and stay of two nights program map table in route related information table need the data packet of routing forwarding, press when receiving data
Data routing process forwarding number is sent according to packet；Data routing is received according to logical address LD, from LD and stay of two nights program map table
Corresponding readjustment stay of two nights program is searched, if having found corresponding readjustment stay of two nights program, stay of two nights program processing is called to receive number
It according to packet, otherwise, calls and sends data routing function, forward the data packet by data routing process is sent.
The present invention has the following beneficial effects: compared with the prior art
Multibus between support processor.The present invention is most with bus port according to the bus type and bus port on processor
Subsection plans PD, guarantees that there is an independent PD in each port.When sending data, data routing function is sent according to LD from LD
DestPD is searched with PD mapping table, corresponding nextPD and localPD is searched from physical topology information table according to destPD, according to
LocalPD, from PD bus driver corresponding with the lookup of bus driver mapping table, thus as defined in being standardized using MHAL
Standard interface function Mhal_Comm or pushPacket can determine that when sending data packet which bus that the data packet uses into
Row transmission.Solve existing MHAL method for routing using MHAL standardize as defined in standard interface function Mhal_Comm or
The problem of not can be carried out bus selection when pushPacket sends data packet, support be between processor multibus radio station system.
Support processor multiport.The present invention plans PD by minimum unit of bus port, is opened up according to destPD from physics
It flutters information table and searches corresponding nextPD and localPD, according to localPD, from PD and the lookup pair of bus driver mapping table
The bus driver answered, to can determine which port of which bus of selection carries out data transmission.It solves existing
MHAL method for routing can not determine the problem of sending data from which port of bus, support that processor is the radio station system of multiport
System.
Support data packet routing forwarding.The present invention is completed to receive data routing by reception data routing function, receives data
Function is routed according to LD, from LD readjustment stay of two nights program corresponding with the lookup of stay of two nights program map table, if having found corresponding time
Stay of two nights program is adjusted, stay of two nights program processing received data packet is called, otherwise, calls and sends data routing function by transmission data road
The data packet is forwarded by process.The present invention solves existing MHAL method for routing and does not support data packet routing forwarding.
Versatility is good.Method for routing of the invention is in the api interface and message for not changing standard as defined in MHAL specification
Under the premise of format, by planning PD by minimum unit of bus port, with waveform number, component numerals, port numbering planning
LD describes entirely to route with bus driver mapping table, LD and PD mapping table and LD and stay of two nights program map table with PD
The mapping of waveform components port numbers and processor bus port in the process solves multibus and processor multiport between processor
In the case of MHAL routing issue, versatility is good.
Detailed description of the invention
Further illustrate technical solution of the present invention with reference to the accompanying drawing, but the content protected of the present invention be not limited to
It is lower described.
Fig. 1 is that multibus processor MHAL of the invention routes schematic diagram.
The transmission data of Fig. 2 Fig. 1 route flow chart.
Fig. 3 Fig. 1 receives data and routes flow chart.
Specific embodiment
Refering to fig. 1.Multibus processor MHAL method for routing provided in an embodiment of the present invention, including establish the related letter of routing
Table is ceased, data routing is sent and receives data and routes three steps.The step for establishing route related information table will establish physics
Topology information table, PD and bus driver mapping table, LD and PD mapping table and LD and stay of two nights program map table totally four tables.
The step for sending data routing will be reflected using physical topology information table, PD and bus driver mapping table and LD and PD
This three tables of firing table.The step for receiving data routing, will be using LD sections and stay of two nights program map table, if data packet needs road
When by forwarding, process forwarding number need to be routed according to packet by data are sent.
Physical address PD is according to the bus type and bus port on processor, using bus port as minimum unit planning,
Guarantee that there is an independent PD in each port.
Logical address LD is planned according to waveform number, component numerals, port numbering, guarantees logical address LD in radio station system
Uniquely.
Physical topology information table is established according to the connection relationship of bus port physical address PD each between processor, is used for
Send data routing when according to the stay of two nights program operation processor correspond to bus port physical address destPD lookup it is corresponding under
One jump processor corresponds to bus port physical address nextPD and native processor corresponds to bus port physical address localPD.
PD and bus driver mapping table, according to the bus port physical address PD and bus driver on each processor
The corresponding relationship of program is established, and searches this according to local bus ports physical address localPD when for sending data routing
The corresponding bus driver of ground bus port.
LD and PD mapping table are established according to deployment of components situation, search this stay of two nights according to LD when for sending data routing
The processor of the corresponding stay of two nights program operation of the logical address of program corresponds to bus port physical address destPD.
LD and stay of two nights program map table are established, for receiving data road according to the corresponding relationship of each LD and call back function
By when, corresponding readjustment stay of two nights program is searched according to LD.
Data routing is sent, is completed by transmission data routing function, when for sending data, according to logical address LD, from
LD in PD mapping table search stay of two nights program logical address corresponding processor bus ports physical address destPD；According to
DestPD searches corresponding next-hop processor bus ports physical address nextPD and corresponding from physical topology information table
Native processor bus port physical address localPD；According to localPD, searched from PD and bus driver mapping table
Then the corresponding bus driver of native processor bus port is input parameter with nextPD, calls corresponding bus driver
Program, so that data packet is sent to the corresponding processor of nextPD by the corresponding bus of localPD；
Receive data routing, completed by reception data routing function, for receiving data when, according to logical address LD, from LD with
Corresponding readjustment stay of two nights program is searched in stay of two nights program map table, if having found corresponding readjustment stay of two nights program, calls the letter
Su Chengxu handles received data packet, otherwise, calls and sends data routing function, forwards the data by data routing process is sent
Packet.
Refering to Fig. 2.Multibus processor MHAL routing sends data flow are as follows: as defined in information source routine call MHAL specification
Standard interface function Mhal_Comm or pushPacket, transmit data packet by MHAL message format；It sends data and routes letter
Number extracts the LD field in data packet, according to LD, from LD processing corresponding with stay of two nights program logical address is searched in PD mapping table
Device bus port physical address destPD；Then corresponding next-hop processing is searched from physical topology information table according to destPD
Device bus port physical address nextPD and corresponding native processor bus port physical address localPD；Further according to
LocalPD, from PD bus driver corresponding with native processor bus port is searched in bus driver mapping table；Most
It is afterwards that input parameter calls corresponding bus driver with nextPD, so that data packet is sent out by the corresponding bus of localPD
It is sent to the corresponding processor of nextPD.
Refering to Fig. 3.Multibus processor MHAL routing receives the process of data are as follows: after bus port receives data packet,
The LD field that data routing function extracts in data packet is received to be searched from LD and stay of two nights program map table corresponding according to LD
Stay of two nights program is adjusted back, judges whether to find corresponding readjustment stay of two nights program, if having found corresponding readjustment stay of two nights program, adjust
Received data packet is handled with the stay of two nights program；Otherwise, it calls and sends data routing function, send data routing function and extract data
LD field in packet, according to LD, from the processor bus port corresponding with stay of two nights program logical address is searched in PD mapping table LD
Physical address destPD；Then corresponding next-hop processor bus port is searched from physical topology information table according to destPD
Physical address nextPD and corresponding native processor bus port physical address localPD；Further according to localPD, from PD with
The corresponding bus driver of native processor bus port is searched in bus driver mapping table；It is finally defeated with nextPD
Enter parameter and calls corresponding bus driver, it is corresponding so that data packet is sent to nextPD by the corresponding bus of localPD
Processor.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (9)
1. a kind of multibus processor MHAL method for routing, including establish route related information table, send data routing and receive
Data route three steps；
In establishing route related information table step, in advance according on processor bus type and bus port with bus port
Physical address PD is planned for minimum unit, and according to waveform number, component numerals, port numbering planning logic address LD, herein
On the basis of, according to the bus port object on the connection relationship of bus port physical address PD each between processor, each processor
The corresponding relationship of corresponding relationship, deployment of components situation and each LD and call back function that manage address PD and bus driver are established
Physical topology information table, PD and bus driver mapping table, LD and PD mapping table and LD and stay of two nights program map table；
In sending data routing step, completes to send data routing by transmission data routing function, send data and route function
Using in route related information table physical topology information table, PD and bus driver mapping table and LD and PD mapping table this
Three tables, according to logical address LD, from the processor bus end corresponding with stay of two nights program logical address is searched in PD mapping table LD
Mouth physical address destPD；According to destPD, corresponding next-hop processor bus port is searched from physical topology information table
Physical address nextPD and corresponding native processor bus port physical address localPD；According to localPD, from PD and always
The corresponding bus driver of native processor bus port is searched in line driver mapping table, is defeated with nextPD then
Enter parameter, calls corresponding bus driver, it is corresponding so that data packet is sent to nextPD by the corresponding bus of localPD
Processor；
It in receiving data step, completes to receive data routing by reception data routing function, receives data routing function and utilize
LD field and stay of two nights program map table in route related information table need the data packet of routing forwarding, press when receiving data
Data routing process forwarding number is sent according to packet；Data routing is received according to logical address LD, from LD and stay of two nights program map table
Corresponding readjustment stay of two nights program is searched, if having found corresponding readjustment stay of two nights program, stay of two nights program processing is called to receive number
It according to packet, otherwise, calls and sends data routing function, forward the data packet by data routing process is sent.
2. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: physical address PD according to
Bus type and bus port on processor are planned by minimum unit of bus port, guarantee that there is an independence in each port
PD.
3. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: logical address LD according to
Waveform number, component numerals, port numbering planning guarantee that logical address LD is unique in radio station system.
4. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: physical topology information table
It is established according to the connection relationship of bus port physical address PD each between processor, when for sending data routing, according to the stay of two nights
The processor of program operation corresponds to bus port physical address destPD, searches corresponding next-hop processor and corresponds to bus port
Physical address nextPD and native processor correspond to bus port physical address localPD.
5. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: PD and bus driver journey
Sequence mapping table is established according to the corresponding relationship of bus port physical address PD and bus driver on each processor, is used for
When sending data routing, the corresponding bus in this local bus port is searched according to local bus ports physical address localPD and is driven
Dynamic program.
6. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: LD and PD mapping table root
It being established according to deployment of components situation, when for sending data routing, the corresponding stay of two nights of logical address of stay of two nights program is searched according to LD
The processor of program operation corresponds to bus port physical address destPD.
7. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: LD is reflected with stay of two nights program
Firing table is established according to the corresponding relationship of each LD and call back function, when routing for receiving data, is searched corresponding time according to LD
Adjust stay of two nights program.
8. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: multibus processor
MHAL routing send data flow are as follows: information source routine call MHAL standardize as defined in standard interface function Mhal_Comm or
PushPacket transmits data packet by MHAL message format；The LD field in data routing function extraction data packet is sent,
According to LD, from LD and lookup stay of two nights program logical address corresponding processor bus ports physical address in PD mapping table
destPD；Then according to destPD, corresponding next-hop processor bus ports physical is searched from physical topology information table
Location nextPD and corresponding native processor bus port physical address localPD；Further according to localPD, driven from PD and bus
The corresponding bus driver of native processor bus port is searched in dynamic program mapping table；It is finally input parameter with nextPD
Corresponding bus driver is called, so that data packet is sent to the corresponding processing of nextPD by the corresponding bus of localPD
Device.
9. a kind of multibus processor MHAL method for routing as described in claim 1, it is characterised in that: multibus processor
MHAL routing receives the process of data are as follows: after bus port receives data packet, receives data routing function and extracts in data packet
LD field corresponding readjustment stay of two nights program is searched from LD and stay of two nights program map table according to LD, judge whether to find pair
The readjustment stay of two nights program answered calls the stay of two nights program to handle received data packet if having found corresponding readjustment stay of two nights program；It is no
Then, it calls and sends data routing function, transmission data routing function extracts the LD field in data packet, according to LD, from LD and PD
Stay of two nights program logical address corresponding processor bus ports physical address destPD is searched in mapping table；Then according to destPD
Corresponding next-hop processor bus ports physical address nextPD is searched from physical topology information table and corresponding is located in
Manage device bus port physical address localPD；Further according to localPD, searched from PD and bus driver mapping table local
The corresponding bus driver in processor bus port；It is finally that input parameter calls corresponding bus driver with nextPD,
So that data packet is sent to the corresponding processor of nextPD by the corresponding bus of localPD.
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| CN110109848A (en) * | 2019-04-29 | 2019-08-09 | 湖南理工学院 | DSP hardware level of abstraction and dsp processor |
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