CN101321132A - Interface plate self-adapting method and apparatus for network processor - Google Patents
Interface plate self-adapting method and apparatus for network processor Download PDFInfo
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Abstract
This invention discloses an interface board self-adapting method and device of network processor. The method includes: obtaining the type of an interface board; creating a receiving engine microcode matched with the type; selecting existed business function engine microcode based on the business function to be started; combining the receiving engine microcode, the business function engine microcode and the pre-set sending engine microcode to obtain a set of microcode versions; downloading the combined microcode version to the network processor and operating it. This invention solves problems of developed multiple microcode versions, repeatedly developing the business function, wasting time and labor to manually transplant the business function because of fully utilizing the existed business function engine microcode. This invention greatly releases the maintenance difficult of microcode development and improves the development efficiency.
Description
Technical field
The present invention relates to a kind of communication field, more specifically, relate to a kind of interface plate self-adapting method and device of network processing unit.
Background technology
At present, programming is flexible, the forward efficiency advantages of higher because have for network processing unit, uses more and more widely in communication apparatus.
Comprise a plurality of parallel in the network processing unit based on RISC (Reduced InstructionSet Computing, reduced instruction set computer calculating) programmable processor (micro engine), for example the IXP2400 network processing unit is one of network processing unit IXP series of the Internet architecture for exchanging released of Intel Company, its main architecture is based on parallel processor architecture, micro engine by a universal cpu and 8 RISC is formed, the microcode that Intel releases operates on the micro engine, and micro engine is responsible for initialization by universal cpu and is downloaded microcode and carry out.In the traditional development model based on this network processing unit, the developer need write independently " Packet Rx " microengine code according to different interface board types.
Fig. 1 is a typical distributed router system that adopts network processing unit to set up.Because system need support polytype physical interface card (Line Card), such as hundred thermies, gigabit card, Pos (Packet Over SDH) card, network processing unit need provide different microcode releases.Develop the complete system that finishes, the microcode developer need write many cover microcodes, such as 24 mouthful of 100,000,000 microcode, and 16 mouthfuls of gigabit microcodes, 4 mouthfuls of Pos622 microcodes etc.In these microcode releases, the developer need develop MPLS (Multi-Protocol LabelSwitching, multiprotocol label switching), ACL (Access Control List, Access Control List (ACL)), QoS business function module such as (Quality of Service, service orders), and the microcode of these business function module has certain versatility.In traditional development process, ordinary circumstance is, after on one type veneer, succeeding in developing function code is transplanted in the microcode release of other board types, and in case in the business function module code of certain microcode release, pinpoint the problems, then need to notify all microcode releases to change accordingly, waste time and energy.Therefore microcode release is too much, is difficult to stablize.
In a word, the interface board type has too much directly caused the microcode release of exploitation many, and the business function exploitation repeats, and the manual business function of transplanting is wasted time and energy.
Summary of the invention
The invention provides a kind of interface plate self-adapting method and device of network processing unit, many to solve the microcode release of developing in the above-mentioned prior art, the business function exploitation repeats, the problem that manual transplanting business function is wasted time and energy.
According to an aspect of the present invention, provide a kind of interface plate self-adapting method of network processing unit, having comprised: the type of obtaining interface board; Create the reception engine microcode that is complementary with type; Select existing business function engine microcode according to the business function that will enable; Obtain a cover microcode release with receiving engine microcode, business function engine microcode and default transmission engine microcode combination; The microcode release of combination is downloaded in the network processing unit and moves.
Preferably, the type of obtaining interface board comprises: port speed and port density.
Preferably, type is 24 mouthful of 100,000,000 interface board, then creates the reception engine microcode of 24 mouthful of 100,000,000 interface board; Type is 16 mouthfuls of gigabit interface boards, then creates the reception engine microcode of 16 mouthfuls of gigabit interface boards; Type is 4 mouthfuls of Pos622 interface boards, then creates the reception engine microcode of 4 mouthfuls of Pos622 interface boards.
Preferably, select existing business function engine microcode specifically to comprise following at least a according to the business function that will enable: IPv4 forwarding engine microcode is used to realize ACL, NAT (Network Address Translation, Network address translators), IPv4 forwarding capability; MPLS forwarding engine microcode is used to realize the label forwarding function of IP message; Queue management engine microcode is used to realize IP message queue management function; Queue scheduling engine microcode is used to realize the queue scheduling function of IP message.
Preferably, the microcode release of combination being downloaded in the network processing unit operation specifically comprises: the allocation strategy that obtains the micro engine of network processing unit; Obtain to receive engine microcode, business function engine microcode, and the operational factor that sends the engine microcode; With the reception engine microcode in the microcode release, business function engine microcode, and transmission engine microcode downloads in the micro engine of allocation strategy defined; Utilization and operation parameter initialization micro engine; Make micro engine carry out the microcode of being downloaded separately.
Preferably, obtain allocation strategy according to type.
Preferably, type comprises port speed and port density, comprises according to port speed and port density acquisition allocation strategy: specify the micro engine with first in the network processing unit to be used for downloading the reception engine microcode of carrying out microcode release; Appointment is used for downloading the business function engine microcode of carrying out microcode release with the micro engine of second portion in the network processing unit; Appointment is used for downloading the transmission engine microcode of carrying out microcode release with the micro engine of third part in the network processing unit.
Preferably, for business function engine microcode configuration operation parameter specifically comprises: according to receiving engine microcode, business function engine microcode, and the information of enabling and the type that send the engine microcode, obtain to receive engine microcode, business function engine microcode, and the operational factor that sends the engine microcode.
According to a further aspect in the invention, provide a kind of interface plate self-adapting device of network processing unit, having comprised: acquisition module is used to obtain the type of interface board; Creation module is used to create the reception engine microcode that is complementary with type; Select module, be used for selecting existing business function engine microcode according to the business function that will enable; Composite module is used for obtaining a cover microcode release with receiving engine microcode, business function engine microcode and default transmission engine microcode combination; Download module, the microcode release that is used for making up downloads to network processing unit and moves.
Preferably, download module specifically comprises: policy unit is used to obtain the allocation strategy of the micro engine of network processing unit; The parameter unit is used for obtaining to receive engine microcode, business function engine microcode, and the operational factor that sends the engine microcode; Download unit is used for reception engine microcode, business function engine microcode with microcode release, and transmission engine microcode downloads in the micro engine of allocation strategy defined; Initialization unit is used for utilization and operation parameter initialization micro engine; Performance element is used to make micro engine to carry out the microcode of being downloaded separately.
The present invention is because made full use of existing business function engine microcode, so it is many to have solved the microcode release of exploitation, the business function exploitation repeats, and transplants the problem that business function is wasted time and energy by hand, greatly alleviates the maintenance difficulties of microcode exploitation, improves development efficiency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the distribution router equipment structure chart of setting up according to the employing network processing unit of prior art;
Fig. 2 shows the flow chart according to the interface plate self-adapting method of the network processing unit of the embodiment of the invention;
Fig. 3 shows the interface board schematic diagram according to the big capacity core router of the embodiment of the invention;
Fig. 4 shows the micro engine allocation strategy schematic diagram according to the interface board of the embodiment of the invention;
Fig. 5 shows the block diagram according to the interface plate self-adapting device of the network processing unit of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 2 is according to the flow chart of the interface plate self-adapting method of the network processing unit of the embodiment of the invention, may further comprise the steps:
Step S10 obtains the type of interface board;
Step S20 creates the reception engine microcode that is complementary with type;
Step S30 selects existing business function engine microcode according to the business function that will enable;
Step S40 obtains a cover microcode release with receiving engine microcode, business function engine microcode and default transmission engine microcode combination;
Step S50 downloads to the microcode release of combination in the network processing unit and moves.
This adaptive approach is because also safeguard a plurality of microcode releases with the exploitation of microcode simultaneously by traditional manual transplanting of past, change into most business function module hardware and software platforms, and become to meet the microcode business release of interface board type according to the dynamic download mechanism Automatic Combined of interface board type by microcode, finish the operational factor setting of each business module automatically.This has made full use of existing business function engine microcode, so it is many to have solved the microcode release of developing in the prior art, the business function exploitation repeats, the problem that manual transplanting business function is wasted time and energy, greatly alleviate the maintenance difficulties of microcode exploitation, improve development efficiency.
Preferably, the type of obtaining interface board comprises: port speed and port density.
Preferably, type is 24 mouthful of 100,000,000 interface board, then creates the reception engine microcode (for example " Packet Rx ") of 24 mouthful of 100,000,000 interface board; Type is 16 mouthfuls of gigabit interface boards, then creates the reception engine microcode of 16 mouthfuls of gigabit interface boards; Type is 4 mouthfuls of Pos622 interface boards, then creates the reception engine microcode of 4 mouthfuls of Pos622 interface boards.
Preferably, select existing business function engine microcode specifically to comprise following at least a according to the business function that will enable: IPv4 forwarding engine microcode is used to realize ACL, NAT, IPv4 forwarding capability; MPLS forwarding engine microcode is used to realize the label forwarding function of IP message; Queue management engine microcode is used to realize IP message queue management function; Queue scheduling engine microcode is used to realize the queue scheduling function of IP message.
Preferably, step S50 operation specifically comprises:
Obtain the allocation strategy of the micro engine of network processing unit;
Obtain to receive engine microcode, business function engine microcode, and the operational factor that sends the engine microcode;
With the reception engine microcode in the microcode release, business function engine microcode, and transmission engine microcode downloads in the micro engine of allocation strategy defined, wherein, drive software can utilize the dynamic download mechanism of microcode, according to the function allocation strategy of micro engine each function microcode is downloaded in the micro engine of appointment;
Utilization and operation parameter initialization micro engine, the method that can adopt comprise that universal cpu is communicated by letter with micro engine, dynamic variable is poured into, import_var technology etc.;
Make micro engine carry out the microcode of being downloaded separately.
Preferably, obtain allocation strategy according to type.
Preferably, type comprises port speed and port density, comprise according to port speed and port density acquisition allocation strategy: specify which micro engine in the network processing unit (for example the 0th, 1, No. 2 micro engine constitutes first's micro engine) is used for downloading the reception engine microcode of carrying out microcode release; Appointment is used for downloading the business function engine microcode of carrying out microcode release with which micro engine in the network processing unit (for example 3,4,5, No. 6 micro engines constitute the second portion micro engine); Appointment is used for downloading the transmission engine microcode of carrying out microcode release with which micro engine in the network processing unit (for example No. 7 micro engines constitute the third part micro engine).
Preferably, for business function engine microcode configuration operation parameter specifically comprises: according to receiving engine microcode, business function engine microcode, and the information of enabling and the type that send the engine microcode, obtain to receive engine microcode, business function engine microcode, and the operational factor that sends the engine microcode.Such as having enabled the Qos business module, just need determine how many Qos micro engine needs when moving wrap formation according to the type and the port density of interface board, the degree of depth of bag formation, queue priority, the queue scheduling algorithm operational factor, in like manner other business function module also needs to obtain the operational factor that is complementary with board type.
Have the representative a kind of of dynamic download ability in the network processing unit that IXP2400 is to use, the network processing unit of other this parallel architecture that is similar to IXP2400 such as the IXP425 of Intel, IXP1200, IXP2350, IXP2800 etc. all can adopt the present invention to realize the adaptation function of interface board.As if no lay special stress on, all give tacit consent to IXP2400 is that example describes to following examples in the back.
Interface board at big capacity core router designs as shown in Figure 3, export on (Egress) this both direction at message input (Ingress) and message on the interface board and respectively use an IXP2400 processor, describe with message handling process at the IXP2400 of Ingress direction.
The IXP2400 of Ingress direction is responsible for message and accepts (Packet RX processing) from the frame on the physical port, frame is handled (PPP decap/classify processing), IPv4 handles (IPv4 Forwarder processing), other follow-up business functions are handled (CM and PacketScheduler handle), send (Packet TX processing) at last and handle to switching network (SwitchFabric).
And the interface board of big capacity core router is with 24 mouthful 100,000,000 (24FE), 16 mouthfuls of gigabits (16GE), and 4 mouthfuls of Pos622 (4Pos622) are example, the business function that needs to support is transmitted (IPv4) with IPv4, label forwarding (MPLS), access control list (ACL), network address translation (nat) is an example.
According to analysis to this example, discovery is except above-mentioned three kinds of veneers in the processing of frame are different, remaining business function module is general, for last " the Packet Tx " that sends on the switching network, engine, because it is be that the form according to switching network adds preamble word on the basis of IP bag this moment fully, also irrelevant with the interface board type.Therefore have 8 micro engines according to IXP2400, and each business function code space consumption, make following function engine and divide:
1,24FE_rx.list, the reception engine microcode of 24 mouthful of 100,000,000 interface board;
2,16GE_rx.list, the reception engine microcode of 16 mouthfuls of gigabit interface boards;
3,4Pos622_rx.list, the reception engine microcode of 4 mouthfuls of Pos622 interface boards,
4, IPv4_forwarder.list, IPv4 forwarding engine microcode comprises ACL, NAT, IPv4 forwarding capability;
5, mpls.list, MPLS forwarding engine microcode, the label forwarding function of realization IP message;
6, qm.list, queue management engine microcode is realized IP message queue management function;
7, scheduler.list, queue scheduling engine microcode, the queue scheduling function of realization IP message
8, packet_tx.list sends the engine microcode, and that realizes the IP message sends to the switching network function;
When Workbench compiles, once this 8 function list codes have just been had, the function list container of this microcode that just we obtained in the microcode UOF file that compiling obtains like this.Wherein the 1,2, the 3rd, receive the engine microcode, the 4,5,6, the 7th, business function engine microcode, the 8th, the transmission engine microcode of presetting.
The developer is according to the allocation strategy of interface board formulation micro engine, and according to this example, the micro engine allocation strategy of three kinds of interface boards is identical, is shown in the accompanying drawing 4:
The rx.list of micro engine 0,1 download interface plate coupling for 24 mouthful of 100,000,000 interface board, is 24FE_rx.list; For 16 mouthfuls of gigabit interface boards, be 16GE_rx.list; For 4 mouthfuls of Pos622 interface boards, be 4Pos622_rx.list;
Micro engine 2,3 downloading service function mpls.list;
Micro engine 4 is downloaded queue management qm.list;
Micro engine 5 is downloaded queue scheduling scheduler.list;
Micro engine 6,7 is downloaded switching network and is sent packet_tx.list.
The developer can formulate the operational factor of each the business function engine that is complementary with the interface board type according to different interface board types, such as for queue management engine qm.list, operational factor just comprises, the port number of interface board, the subqueue number of every port, the degree of depth of each subqueue etc.; For scheduling engine, operational factor comprises queue scheduling algorithm and relevant parameter.
After finishing above-mentioned technology preparation, in the start-up course of this equipment, drive software is just according to the type of current interface board, obtain the micro engine allocation strategy of the type veneer, if 24 mouthful of 100,000,000 interface board, then download 24FE_rx.list to micro engine 0,1, and downloaded other business function engine according to the micro engine allocation strategy, and carry out the parameter setting according to the engine-operated parameter of each business function of institute interface board coupling, when Drive Layer started the operation of micro engine, this network processing unit had just been gone up with this type interface board coupling fully like this.
Can be well understood to by this example, use interface plate self-adapting method of the present invention and device, the developer can independently receive engine according to the interface board exploitation, formulate the allocation strategy of micro engine, formulate the operational factor setting of business function engine, all micro engine couplings are formed the complete microcode handling process of this interface board by dynamic download mechanism.Carry out the exploitation of multiple interfaces plate based on this development model, can alleviate the exploitation of repetition business function greatly, reduce the quantity of microcode release, help the minimizing of fault simultaneously.
Fig. 5 shows the block diagram according to the interface plate self-adapting device of the network processing unit of the embodiment of the invention, comprising:
Preferably, download module 50 specifically comprises: policy unit is used to obtain the allocation strategy of the micro engine of network processing unit; The parameter unit is used for obtaining to receive engine microcode, business function engine microcode, and the operational factor that sends the engine microcode; Download unit is used for reception engine microcode, business function engine microcode with microcode release, and transmission engine microcode downloads in the micro engine of allocation strategy defined; Initialization unit is used for utilization and operation parameter initialization micro engine; Performance element is used to make micro engine to carry out the microcode of being downloaded separately.
The microcode dynamic download mechanism of this interface plate self-adapting device processor Network Based, the developer only need develop the reception engine that is complementary with it according to the difference of interface board type, and the business function engine only carries out hardware and software platform based on IP message exploitation one cover, like this according to the interface board type, the business function engine that receives engine and hardware and software platform accordingly combined just can be formed a cover and meet the microcode release that the interface board type requires.
The present invention has effectively solved the business function hardware and software platform problem of microcode, the exploitation of microcode is transplanted by traditional craft of past, safeguard a plurality of versions simultaneously, change into most business function module hardware and software platforms, and become to meet the microcode business release of interface board type according to the dynamic download mechanism Automatic Combined of interface board type by microcode, automatically finish the operational factor setting of each business module, this will greatly alleviate the maintenance difficulties of microcode exploitation, improve development efficiency.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the interface plate self-adapting method of a network processing unit is characterized in that, comprising: the type of obtaining interface board;
Create the reception engine microcode that is complementary with described type;
Select existing business function engine microcode according to the business function that will enable;
Described reception engine microcode, described business function engine microcode and default transmission engine microcode combination are obtained a cover microcode release;
The microcode release of combination is downloaded in the described network processing unit and moves.
2. interface plate self-adapting method according to claim 1 is characterized in that, the described type of obtaining described interface board comprises: port speed and port density.
3. interface plate self-adapting method according to claim 1 is characterized in that, described type is 24 mouthful of 100,000,000 interface board, then creates the reception engine microcode of 24 mouthful of 100,000,000 interface board; Described type is 16 mouthfuls of gigabit interface boards, then creates the reception engine microcode of 16 mouthfuls of gigabit interface boards; Described type is 4 mouthfuls of Pos622 interface boards, then creates the reception engine microcode of 4 mouthfuls of Pos622 interface boards.
4. interface plate self-adapting method according to claim 1 is characterized in that, selects existing business function engine microcode specifically to comprise following at least a according to the business function that will enable:
IPv4 forwarding engine microcode is used to realize Access Control List (ACL), Network address translators, IPv4 forwarding capability;
MPLS forwarding engine microcode is used to realize the label forwarding function of IP message;
Queue management engine microcode is used to realize IP message queue management function;
Queue scheduling engine microcode is used to realize the queue scheduling function of IP message.
5. interface plate self-adapting method according to claim 1 is characterized in that, the microcode release of described combination is downloaded to operation specifically comprises in the described network processing unit:
Obtain the allocation strategy of the micro engine of described network processing unit;
Obtain described reception engine microcode, described business function engine microcode, and the operational factor of described transmission engine microcode;
With the described reception engine microcode in the described microcode release, described business function engine microcode, and described transmission engine microcode downloads in the micro engine of described allocation strategy defined;
Use the described micro engine of described operational factor initialization;
Micro engine is carried out the microcode of being downloaded separately.
6. interface plate self-adapting method according to claim 5 is characterized in that, obtains described allocation strategy according to described type.
7. interface plate self-adapting method according to claim 6 is characterized in that described type comprises port speed and port density, obtains described allocation strategy according to port speed and port density and comprises:
Appointment is used for downloading the described reception engine microcode of carrying out described microcode release with the micro engine of first in the described network processing unit;
Appointment is used for downloading the described business function engine microcode of carrying out described microcode release with the micro engine of second portion in the described network processing unit;
Appointment is used for downloading the described transmission engine microcode of carrying out described microcode release with the micro engine of third part in the described network processing unit.
8. interface plate self-adapting method according to claim 5 is characterized in that, for described business function engine microcode configuration operation parameter specifically comprises:
According to described reception engine microcode, described business function engine microcode, and the information of enabling of described transmission engine microcode and described type, obtain described reception engine microcode, described business function engine microcode, and the operational factor of described transmission engine microcode.
9. the interface plate self-adapting device of a network processing unit is characterized in that, comprising: acquisition module is used to obtain the type of interface board;
Creation module is used to create the reception engine microcode that is complementary with described type;
Select module, be used for selecting existing business function engine microcode according to the business function that will enable;
Composite module is used for described reception engine microcode, described business function engine microcode and default transmission engine microcode combination are obtained a cover microcode release;
Download module, the microcode release that is used for making up downloads to described network processing unit and moves.
10. interface plate self-adapting device according to claim 9 is characterized in that, described download module specifically comprises:
Policy unit is used to obtain the allocation strategy of the micro engine of described network processing unit;
The parameter unit is used to obtain described reception engine microcode, described business function engine microcode, and the operational factor of described transmission engine microcode;
Download unit be used for the described reception engine microcode of described microcode release, described business function engine microcode, and described transmission engine microcode downloads in the micro engine of described allocation strategy defined;
Initialization unit is used to use the described micro engine of described operational factor initialization; Performance element is used to make described micro engine to carry out the microcode of being downloaded separately.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016065928A1 (en) * | 2014-10-27 | 2016-05-06 | 中兴通讯股份有限公司 | Router configuration method and router, router control device and communication system |
| US10433351B2 (en) | 2016-06-14 | 2019-10-01 | Audi Ag | Motor vehicle controller, method for monitoring a mobile internet connection, and motor vehicle |
| WO2021120754A1 (en) * | 2019-12-16 | 2021-06-24 | 华为技术有限公司 | Instruction writing method and apparatus, and network device |
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| CN102523159A (en) * | 2011-12-15 | 2012-06-27 | 盛科网络（苏州）有限公司 | Certification message generation method and system for network chip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100511175C (en) * | 2005-11-03 | 2009-07-08 | 华为技术有限公司 | Method for correcting micro code program using software patch |
| CN101075966A (en) * | 2007-07-05 | 2007-11-21 | 中兴通讯股份有限公司 | Method for loading microcode by network processor by router system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016065928A1 (en) * | 2014-10-27 | 2016-05-06 | 中兴通讯股份有限公司 | Router configuration method and router, router control device and communication system |
| CN105634762A (en) * | 2014-10-27 | 2016-06-01 | 中兴通讯股份有限公司 | Router configuration method, router, router control device and communication system |
| CN105634762B (en) * | 2014-10-27 | 2021-10-15 | 中兴通讯股份有限公司 | Router configuration method, router control device and communication system |
| US10433351B2 (en) | 2016-06-14 | 2019-10-01 | Audi Ag | Motor vehicle controller, method for monitoring a mobile internet connection, and motor vehicle |
| WO2021120754A1 (en) * | 2019-12-16 | 2021-06-24 | 华为技术有限公司 | Instruction writing method and apparatus, and network device |
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