CN100450069C - System and parts for realizing communication between first part and secondary part - Google Patents
System and parts for realizing communication between first part and secondary part Download PDFInfo
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- CN100450069C CN100450069C CNB200610140943XA CN200610140943A CN100450069C CN 100450069 C CN100450069 C CN 100450069C CN B200610140943X A CNB200610140943X A CN B200610140943XA CN 200610140943 A CN200610140943 A CN 200610140943A CN 100450069 C CN100450069 C CN 100450069C
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Abstract
A system for realizing communication between the first and the second component utilizes PCI / PCI - X / PCI Express bus and Ethernet controller both existed on the first component to make universal hardware platform be the second component being integrated on the first component in order to not only realize function of the first component but also enable to operate the third party software on the second component for properly realizing some other functions as well .
Description
Technical field
The present invention relates to the method that communicates between two parts of network field, relate in particular to OAA (Open Application Architecture, open application architecture) NFC (NetworkForwarding Component in, the forwarded parts) system and the IAC and the OAA of respective communication and between the IAC (Independent ApplicationComponent, separate traffic parts).
Background technology
Along with the fast development of Network and progressively refinement, traditional network equipment becomes no longer handy when handling these business.Such as, require equipment can do data forwarding and not only can insert voice, require equipment can finish load balancing but also can carry out content safety and filter.At this moment, a family independently technology producer be difficult to offer simultaneously desired all services of user.For this reason, the user need buy the equipment of a plurality of producers usually, and those equipment are linked together.So not only interoperability often goes wrong, equipment room cooperates and to be not easy especially to consult, and the equipment of giving administer and maintain the burden of bringing on the cost.
With switching equipment (described switching equipment comprises switch and router) is example, and at present according to position in the network and effect, switching equipment is divided into low and middle-end switching equipment and core switching device usually.The major function of low and middle-end switching equipment is to compile and carry out service management, and the major function of core switching device is quick forwarding, makes packet pass through IP backbone as far as possible apace.The low and middle-end switching equipment generally is in the marginal position of network, and implementation is the centralized switching equipment of general uniprocessor (CPU).Because centralized switching equipment has Costco Wholesale advantage preferably, so obtain using comparatively widely.Centralized switching equipment can rely on the simple single-processor of built-in function to realize function of exchange, but, in the face of the traffic performance requirement that becomes increasingly abundant, as IPSec (IP Security agreement), IPS (Intrusion Protect System intrusion prevention system), voice and wireless etc., centralized switching equipment can not satisfy those professional demands.
For this reason, consider whether the business components of finishing the miscellaneous service function to be integrated into and form an integrated equipment on the basic components, thereby reduce the appearance of inter-communicating problem and reduce the maintenance and management cost, and then provide more high quality-of-service for the user.Still be example with the switching equipment, the business components such as intelligent interface board that carry processor (CPU) can be integrated in the centralized switching equipment, allow the software or the hardware of business components to provide by each producer, like this, on switching equipment, can finish the miscellaneous service function, thereby the equipment that makes satisfies various abundant business demands.
The applicant has proposed a kind of OAA framework, the equipment of different vendor is integrated into the system of a loose coupling.A system that meets the OAA framework comprises NFC and the IAC (seeing also Fig. 1) that connects by ILC (Interface LinkageComponent, interface link).NFC is the above-mentioned basic components of mentioning, IAC is the above-mentioned business components of mentioning.Wherein NFC is the main body of OAA system, is responsible for carrying out message and transmits, and the function of complete router and switch is arranged, and also is the core of user management control; IAC is the business service main body that is used to provide the additional function of various application, generally shows as a veneer or button card in the OAA system; ILC need transmit and the path of control information transmission for NFC and IAC provide message, yet, do not have existing ILC at present and realize communication between NFC and the IAC.
That is to say, need to communicate between NFC and the IAC that described communication comprises that data message communication communicates by letter with control information.Accordingly, all need to be provided with the data-interface that is used for data communication and be used for control information control of communication interface on NFC and IAC, this will provide an ILC to carry out between the two communication.Such as, if will be on centralized switching equipment the integrated intelligent interface board, need to solve the problem that both communicate by letter.
The communication that relatively extensively exists now mainly is based on PCI (Peripheral ComponentInterconnect) bus, PCI-X bus or PCI Express bus and communicates.With the centralized switching equipment is example, and the uniprocessor of centralized switching equipment generally is connected with each non intelligent interface board by pci bus, PCI-X bus or PCI Express bus.See also Fig. 2, it is the centralized switching equipment of communicating by letter with each non intelligent interface board based on pci bus, PCI-X bus or PCI Express bus.Procotol process softwares all on the centralized switching equipment operate in the host-processor, control the work of each non intelligent interface board by this processor.And for the intelligent interface board that carries processor, the application software of maturation normally is provided by producer separately, the application software that present centralized switching equipment can not provide each producer is installed in host-processor, finish control to each intelligent interface board, the communication of so, how finishing between centralized switching equipment and each intelligent interface board just becomes the present problem that needs solution.
That is to say how to make to communicate between NFC and IAC two parts, and then make IAC to be integrated into to become possibility on the NFC, thereby can provide high quality services, become the present problem that solves of needing for the user.
Summary of the invention
The object of the present invention is to provide a kind of system of communicating by letter between first parts and second parts of realizing, to solve the technical problem that can not realize NFC and IAC two components communicate in the prior art.
In order to achieve the above object, the invention provides a kind of system of communicating by letter between first parts and second parts of realizing, described first parts are forwarded parts NFC, and described second parts are separate traffic parts IAC, comprising:
First ethernet controller, the host-processor of connection NFC is used for the conversion of the data and the Ethernet interface data of host-processor;
Second ethernet controller connects first ethernet controller and connects the processor of IAC or be integrated on the processor of IAC, be used for the conversion of the data of processor and Ethernet interface data and set up and first ethernet controller between data communication;
First universal asynchronous reception/transmitter connects first ethernet controller or connects host-processor or directly be integrated on the host-processor, is used for the conversion of the parallel control data and the Serial Control data of host-processor;
Second universal asynchronous reception/transmitter, connect first universal asynchronous reception/transmitter, connect second ethernet controller or connect the processor of IAC or be integrated on the processor of IAC, be used for conversion with parallel control data on the processor and Serial Control data, and Serial Control data communication between foundation and the first universal asynchronous reception/transmitter.
Native system also comprises first logical circuit that is arranged between first ethernet controller and the first universal asynchronous reception/transmitter, when being used for failing directly to dock between first ethernet controller and first universal asynchronous reception/transmitter, the parallel data of described first ethernet controller being exported by described first logical circuit converts the parallel interface data that first universal asynchronous reception/transmitter can directly be handled to.
Native system also comprises second logical circuit that is arranged between second ethernet controller and the second universal asynchronous reception/transmitter, when being used for failing directly to dock between second ethernet controller and second universal asynchronous reception/transmitter, the parallel data of described second ethernet controller being exported by described second logical circuit converts the parallel interface data that second universal asynchronous reception/transmitter can directly be handled to.
It is the Ethernet card of GD82551ER that described first ethernet controller and second ethernet controller adopt model, it is the UART card of ST16C550 that model is adopted in the described first universal asynchronous reception/transmitter and the second universal asynchronous reception/transmitter, described first logical circuit and second logical circuit for be connected respectively GD82551ER /INT port and ST16C550 /the INT port " with " logic.
Described first logical circuit and second logical circuit also comprise multiplexer.
First universal asynchronous reception/transmitter is directly connected to the local bus Local Bus of host-processor, perhaps first universal asynchronous reception/transmitter is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of host-processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.
Second universal asynchronous reception/transmitter is directly connected to the local bus Local Bus of IAC processor, perhaps second universal asynchronous reception/transmitter is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.
First parts, described first parts are forwarded parts NFC, described NFC comprises host-processor, first ethernet controller and first universal asynchronous reception/transmitter, first ethernet controller connects host-processor by PCI/PCI-X/PCI Express bus, and described first ethernet controller is used for the conversion of the data and the Ethernet interface data of host-processor; First universal asynchronous reception/transmitter connects first ethernet controller or connects host-processor or be integrated on the host-processor, is used for the conversion of the parallel control data and the Serial Control data of host-processor.
First parts also comprise first logical circuit that is arranged between first ethernet controller and the first universal asynchronous reception/transmitter, when being used for failing directly to dock between first ethernet controller and first universal asynchronous reception/transmitter, the parallel data of described first ethernet controller being exported by described first logical circuit converts the parallel interface data that first universal asynchronous reception/transmitter can directly be handled to.
Second parts, described second parts are separate traffic parts IAC, described IAC comprises processor, second ethernet controller and second universal asynchronous reception/transmitter, and processor connects second ethernet controller by the PCI/PCI-X/PCIExpress bus or second ethernet controller is integrated on the processor; Second ethernet controller connects the processor and first ethernet controller of IAC respectively, is used for the conversion of the data and the Ethernet interface data of processor, and set up and first ethernet controller between data communication; Second universal asynchronous reception/transmitter, connect first universal asynchronous reception/transmitter, connect the processor of IAC or connect second ethernet controller or be integrated on the processor of IAC, be used for conversion with parallel control data on the processor and Serial Control data, and Serial Control data communication between foundation and the first universal asynchronous reception/transmitter.
Second parts also comprise second logical circuit that is arranged between second ethernet controller and the second universal asynchronous reception/transmitter, when being used for failing directly to dock between second ethernet controller and second universal asynchronous reception/transmitter, the parallel data of described second ethernet controller being exported by described second logical circuit converts the parallel interface data that second universal asynchronous reception/transmitter can directly be handled to.
By the present invention, can realize communicating by letter between NFC and the IAC, thereby can provide high quality services for the user.With the centralized switching equipment is example, the present invention utilizes the host-processor of existing switching equipment to realize communicating by letter between the processor with intelligent interface board, like this, on switching equipment, can finish the miscellaneous service function, thereby the equipment that makes satisfies various abundant business demands.And the present invention utilizes existing P CI/PCI-X/PCI-Express bus to realize communicating by letter between NFC and the IAC, can utilize existing processor system to realize both communication, saves cost.
Description of drawings
Fig. 1 is a kind of OAA framework schematic diagram disclosed by the invention;
Fig. 2 for existing based on the schematic diagram of communicating by letter between PCI/PCI-X/PCI-Express bus CPU and the non intelligent interface board;
Fig. 3 realizes the structural representation of the system that communicates by letter between first parts and second parts for the present invention is a kind of;
Fig. 4 is an example schematic of Ethernet card of the present invention and UART card connection;
Fig. 5 is another example schematic of Ethernet card of the present invention and UART card connection.
Embodiment
Below in conjunction with accompanying drawing, specify the present invention.
Figure 1 shows that a kind of typical structure of the OAA system that the present invention uses.The ILC that connects NFC and IAC among the OAA generally includes control interface and datum plane interface, control interface can be the interface that asynchronous serial port, synchronous serial interface etc. are supported stream mode, also may be an independent Ethernet physical port, perhaps shared physical port with datum plane.Control interface on the NFC is connected with control interface on the IAC, is used to carry out the communication of control information, and the datum plane interface on the NFC is connected with datum plane interface on the IAC, is used to carry out the communication of data message.In addition, can comprise a plurality of IAC that finish difference in functionality in an OAA system.
In the OAA system, the function of forwarding is finished by NFC, and professional additional treatments is finished by IAC.At different application, the applicant defines 4 kinds of mode of operations, can finish communicating by letter between NFC and the IAC by one of these 4 kinds of patterns or wherein several combinations.
1, main frame (Host) pattern
IAC resembles a main frame on the network, has the IP address of oneself, exists as the network tip.The IP message all is that the Ethernet interface of logical ILC is transmitted.This mode, NFC only finishes simple message and transmits, and IAC then as the promoter and the recipient of data message, receives and dispatches various messages, and NFC is exactly the gateway of IAC.
2, mirror image (Mirror) pattern
NFC as requested, duplicates a IAC of giving to specific message in the process that message is transmitted, original message continues to finish normal forwarding.Analyze later on and handle and IAC receives this message, then with packet loss.Under this pattern, mirror image message also is to transmit by the ILC Ethernet interface.
3, be redirected (Redirection) pattern
Under this pattern, NFC as requested, gives IAC specific message redirecting in the message repeating process.After IAC handles, or abandon, or pass through.If pass through, then message is by the intact NFC that returns, and NFC then continues to continue to handle from the place of interrupting originally, finishes follow-up forwarding work.Under this pattern, the message that is redirected also is to transmit by the Ethernet interface of ILC.
4, penetrate (Pass-Through) pattern
Under this pattern, IAC does not have configuration of IP address, and external Ethernet interface must be arranged, and data flow into from this interface, pass IAC, and the Ethernet interface of process ILC is to NFC, perhaps in the other direction.As if at NFC, external data similarly is the Ethernet interface that has directly arrived ILC, and IAC does not exist the same.
In order to realize above-mentioned disclosed four kinds of patterns, need NFC can finish communicating by letter between data and the control information with IAC.Below how to realize comprising communicating by letter of data and control information between NFC and the IAC with regard to explanation earlier.
See also Fig. 3, it realizes the structural representation of the system that communicates by letter between first parts and second parts for the present invention is a kind of.Described first parts are forwarded parts NFC, and described second parts are separate traffic parts IAC, and described system is ILC, and ILC comprises:
First ethernet controller, the host-processor of connection NFC is used for the conversion of the data and the Ethernet interface data of host-processor;
Second ethernet controller connects first ethernet controller, connects the processor of IAC or is integrated on the processor of IAC, is used for the conversion of the data and the Ethernet interface data of processor, and set up and first ethernet controller between data communication;
First universal asynchronous reception/transmitter UART1 connects first ethernet controller or host-processor, is used for the conversion of the parallel control data and the Serial Control data of host-processor;
Second universal asynchronous reception/transmitter UART2, connect UART1, connect the processor of IAC or be integrated on the processor of IAC or connect second ethernet controller, be used for conversion with parallel control data on the processor and Serial Control data, and Serial Control data communication between foundation and the UART1.
The bus that NFC offers each IAC remains traditional pci bus, PCI-X bus or PCI Express bus.NFC and IAC are connected general ethernet controller (as devices such as GD82551, the RC82545 of Intel Company, FW82546) by this bus and set up communication.With the centralized switching equipment is example, if will be on existing centralized switching equipment the integrated intelligent interface board, can adopt existing P CI bus, PCI-X bus or PCI Express bus to set up between the two communication, it is convenient to realize.
A design independent CPUs (processor) system in IAC is as based on Intel X 86 processor, AMD X 86 processor or based on the processor general hardware platform of MIPS technology.This general hardware platform is the basis of now a lot of application software operations, and has a lot of equipment producer to develop various application on the basis of this hardware platform.Realize after the such scheme of the present invention can well be integrated the application of the said equipment producer.For centralized router, the appliance applications that is equivalent to move on this general hardware platform manages, uses according to router self system.
The present invention can realize that IAC is with the key of communicating by letter between the NFC, and can carry out data communication and control information communication.
Realize data communication by following scheme:
Realize conversion between host computer side data flow and the Ethernet interface data utilizing pci bus, PCI-X bus or the PCI Express bus existed and first ethernet controller on the NFC.As above the PCI/PCI-X/PCI Express bus 0 among the figure and first ethernet controller.
In the conversion between data flow and the Ethernet interface data on the pci bus of utilizing processor on the IAC, PCI-X bus or PCI Express bus and second ethernet controller realization IAC processor.As above the PCI/PCI-X/PCI Express bus 1 among the figure and second ethernet controller.Ethernet interface on IAC can not realized by the PCI/PCI-X/PCI Express bus 1 and second ethernet controller yet, directly second ethernet controller is integrated on the processor, as passing through CPU or Chipset self integrated ethernet controller.
Can realize by such scheme carrying out data message communication between the processor of the host-processor of NFC and IAC.But, between the processor of the host-processor of NFC and IAC except that the Ethernet interface that carries out the data flow exchange, also need a serial control interface.In the present invention in the time can not directly docking between first ethernet controller and the UART1, also the first logical circuit Logic1 need be set between first ethernet controller and UART1, when being used for failing directly to dock between first ethernet controller and UART1, the parallel data of described first ethernet controller being exported by described Logic1 converts the parallel interface data that UART1 can directly handle to.
Equally, in the present invention in the time can not directly docking between second ethernet controller and the UART2, also the second logical circuit Logic2 need be set between second ethernet controller and UART2, when being used for failing directly to dock between second ethernet controller and UART2, the parallel data of described second ethernet controller being exported by described Logic2 converts the parallel interface data that UART 2 can directly handle to.
Because being connected of first ethernet controller and UART1 is identical with being connected of second ethernet controller and UART2, the present invention just illustrates with a specific embodiment.Such as, it is the Ethernet card of GD82551ER that first ethernet controller and second ethernet controller adopt model, it is the UART card of ST16C550 that UART1 and UART2 adopt model, described Logic1 and Logic2 for be connected respectively GD8255 1ER /INT port and ST1 6C550 /the INT port " with " logic.
See also Fig. 4, it is an example schematic of Ethernet card of the present invention and UART card connection.
First ethernet controller/second ethernet controller adopts the 10/100M ethernet controller GD82551ER of Intel Company, and UART1/UART2 adopts the ST16C550 device of EXAR company.The output interface that GD82551ER provides----Local Memory Interface (local storage interface) is the data of 8bit data-bus width/address separate bus, and the parallel bus interface of ST16C550 also is the data/address separate bus of 8bit data-bus width.
Hardware annexation between the two is: the parallel interface address bus FLA0-FLA2 of GD82551ER is connected to the ADDR0-ADDR2 of UART ST16C550, the parallel interface data/address bus FLD0-FLD7 of GD82551ER is connected to the D0-D7 of UART ST16C550, the parallel interface sheet choosing/FLCS of GD82551ER, read to enable/FLOE, write enable control signal/FLWE be connected to respectively UART ST16C550 parallel interface sheet choosing/CS2, read to enable/IOR, write and enable control signal/IOW.
The parallel interface of the Local Memory Interface of GD82551ER and UART ST16550 is directly docked in last figure.For being electrically connected mainly is to satisfy sequential relationship, and it is no problem to analyze the sequential cooperation according to the hardware resources of two devices, can directly connect.But, need comprehensively be that a unified interruption application signal is given host-processor/processor by AND logic circuit because that the interrupt signal output of the interrupt signal output of ST16550 and GD82551ER is low level is effective.
In certain above-mentioned example, the Local Memory Interface of GD82551ER and the parallel bus of ST16C550 all are the data address bus separated structures, and both main sequential satisfy matching relationship and can directly dock.If adopting UART device parallel interface in the scheme is the multiplexing structure of data address bus, then just need to offer UART again after the mask data address bus merging of a logical circuit with GD82551ER.See also Fig. 5, it is another example schematic of Ethernet card and UART card connection.One of them adopts data address bus multiplexing when two devices, and another device is when adopting data address bus isolating construction, adopts a multiplexer to realize between the two butt joint.That is, described first logical circuit and second logical circuit adopt a multiplexer to realize that both dock.
Still according to above-mentioned example, earlier the internal register of ST16C550 is mapped to the Flash address space of GD82551ER, the base address of this Flash address space is set by configuration space on GD82551ER then, subsequently the Flash spatial mappings is arrived the memory address space, thus the internal register that can visit ST16C550 by the memory access mode.
During by the serial ports reading of data, at first judge by a register identification position among the ST16C550 whether ST16C550 receives new data, if do not receive, then this register is read in circulation; If new data are arranged, then the processor of host-processor/IAC reads data among the ST16C550 by the pci bus read operation.
When sending data by serial ports, at first judge by another register identification position among the ST16C550 whether UART is ready for sending new data, if be not ready for sending, then this register identification position is read in circulation; Send if UART is ready to receive new data, then the processor of host-processor/IAC is operated by pci bus write and is sent data.
Whether the processor of host-processor/IAC of NFC receives new data or is not ready to send the data except knowing by the mode of poll among the ST16C550, ST16C550 can also notify the processor of host-processor/IAC of NFC to receive new data or has been ready to send data by interrupt mode, sends data so that the processor of host-processor/IAC of NFC can read the data among the ST16C550 or operate by pci bus write by the pci bus read operation.
Because the bus of NFC/IAC is general PCI/PCI-X/PCI Express bus interface, UART1/UART2 shows as a general pci bus equipment, on the PCI/PCI-X/PCI Express bus that can be implemented as at NFC/IAC with serial line interface.By this serial line interface can realize NFC for IAC with and the management of going up operating software.
As NFC during to the IAC data information, the host-processor of NFC is sent to first ethernet controller by PCI/PCI-X/PCIExpress bus 0 with data, first ethernet controller converts thereof into the Ethernet interface data and is sent to second ethernet controller, and second ethernet controller is sent to data the processor of IAC by PCI/PCI-X/PCI Express bus 1.As NFC during to the IAC communicating control information, the host-processor of NFC writes UART1 with control data by the pci bus write operation, UART1 is sent to UART2 after converting control data to serial data, after UART2 becomes parallel data with data transaction, the notice processor of IAC or the processor of IAC know that by inquiry mode new data is arranged among the UART2, and the processor of IAC is read data among the UART2 by the pci bus read operation.
Processor on host-processor/IAC is the transmission of carrying out data message and control information according to the mode of address space.Processor on host-processor/IAC is given data transmission channel and the corresponding different address space of control information channel allocation to UART1/UART2 in first ethernet controller/second ethernet controller.Such first ethernet controller/second ethernet controller receives the data that transmitted by the processor on host-processor/IAC and carries address information, can send to different purposes according to corresponding address information: if data transmission channel corresponding address information, then described data are sent to corresponding second ethernet controller/first ethernet controller, otherwise, described data are sent to UART1/UART2.
Second ethernet controller can be provided with separately, is connected with the processor of IAC by PCI/PCI-X/PCI Express bus, also can be integrated on the processor of IAC, as with on integrated CPU of second ethernet controller or the Chipset.
Can carry serial ports on the processor of host-processor/IAC of NFC or expand serial ports and realize between the two control information communication.But,, that is to say that the serial line interface that is provided with on the host-processor of NFC has been done him and used because the host-processor of NFC does not offer IAC with the serial line interface of self usually in advance.For this reason, the present invention can realize the moving property message communication of control letter between NFC and the IAC by the mode that expands serial ports.
The processor of host-processor/IAC of NFC has a Local Bus (local bus) usually, this bus is a parallel bus, similar with the Local memory Interface of above-mentioned GD82551, just can on this bus, connect ST16C550 and expand serial ports.Or the processor of host-processor/IAC of NFC generally provides pci bus, by special chip, as the most general PCI9030 of PLX company device, this bus can be converted to Local Bus bus, connects ST16C550 again and expands serial ports.
Promptly, UART1 is directly connected to the local bus Local Bus of host-processor, perhaps UART1 is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of host-processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.UART2 is directly connected to the local bus Local Bus of IAC processor, perhaps UART2 is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.Described converting unit can adopt the most general PCI9030 of PLX company chip.
In sum, the present invention has following several embodiment at least.
ILC comprises first ethernet controller, second ethernet controller, UART1 and UART2.Second ethernet controller can adopt the PCI/PCI-X/PCI-Express bus to be connected to the processor of IAC or be integrated in the processor of IAC, first ethernet controller connects the UART1 and second ethernet controller respectively, UART1 connects first ethernet controller and UART2 respectively, and UART2 connects second ethernet controller.
ILC comprises first ethernet controller, second ethernet controller, Logic1, Logic2, UART1 and UART2.Second ethernet controller can adopt the PCI/PCI-X/PCI-Express bus to be connected to the processor of IAC or be integrated in the processor of IAC, first ethernet controller connects UART1 and connects second ethernet controller by Logic1, UART1 connects UART2, and UART2 connects second ethernet controller by Logic2.
Embodiment 3
ILC comprises first ethernet controller, second ethernet controller, Logic1, UART1 and UART2.Second ethernet controller can adopt the PCI/PCI-X/PCI-Express bus to be connected to the processor of IAC or be integrated in the processor of IAC, during UART2 is integrated in the processor of IAC or directly connect the processor of IAC or connect the processor of IAC by a converting unit, first ethernet controller connects UART1 and connects second ethernet controller by Logic1, and UART1 connects UART2.
Embodiment 4
ILC comprises first ethernet controller, second ethernet controller, Logic1, UART1 and UART2.Second ethernet controller can adopt the PCI/PCI-X/PCI-Express bus to be connected to the processor of IAC or be integrated in the processor of IAC, and UART1 directly connects the host-processor of NFC or connects the host-processor of NFC by a converting unit.Second ethernet controller connects UART2 and connects first ethernet controller by Logic2, and UART1 connects UART2.
In the design process that realizes, ILC generally is not in esse independent hardware, usually its each building block is separately positioned among NFC and the IAC, so that more compact structure and saving cost.In the present invention, first ethernet controller, Logic1, UART1 design in NFC usually.And second ethernet controller, Logic2, UART2 are arranged among the IAC usually.
That is:
First parts disclosed by the invention, described first parts are NFC, described NFC comprises host-processor, first ethernet controller and first universal asynchronous reception/transmitter, first ethernet controller connects host-processor by PCI/PCI-X/PCI Express bus, and described first ethernet controller is used for the conversion of the data and the Ethernet interface data of host-processor; First universal asynchronous reception/transmitter connects first ethernet controller or connects host-processor or be integrated on the host-processor, is used for the conversion of the parallel control data and the Serial Control data of host-processor.
NFC also comprises first logical circuit that is arranged between first ethernet controller and the first universal asynchronous reception/transmitter, when being used for failing directly to dock between first ethernet controller and first universal asynchronous reception/transmitter, the parallel data of described first ethernet controller being exported by described first logical circuit converts the parallel interface data that first universal asynchronous reception/transmitter can directly be handled to.
First universal asynchronous reception/transmitter of NFC can be directly connected to the local bus Local Bus of host-processor, perhaps first universal asynchronous reception/transmitter is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of host-processor, and described converting unit is used for the conversion between PCI/PCI-X/PCIExpress bus data and the local bus Local Bus data.The present invention is except expanding first universal asynchronous reception/transmitter by host-processor, first universal asynchronous reception/transmitter also can be integrated on the host-processor, in addition, the present invention also can set up first universal asynchronous reception/transmitter separately, and this first universal asynchronous reception/transmitter connects first ethernet controller.
Second parts, described second parts are separate traffic parts IAC, described IAC comprises processor, second ethernet controller and second universal asynchronous reception/transmitter, and processor connects second ethernet controller by the PCI/PCI-X/PCIExpress bus or second ethernet controller is integrated on the processor; Second ethernet controller, connect first ethernet controller with the processor that is connected IAC or second ethernet controller is integrated on the processor of IAC, be used for the conversion of the data and the Ethernet interface data of processor, and data communication between the foundation and first ethernet controller; Second universal asynchronous reception/transmitter, connect first universal asynchronous reception/transmitter, connect the processor of IAC or connect second ethernet controller or be integrated on the processor of IAC, be used for conversion with parallel control data on the processor and Serial Control data, and Serial Control data communication between foundation and the first universal asynchronous reception/transmitter.
IAC also comprises second logical circuit that is arranged between second ethernet controller and the second universal asynchronous reception/transmitter, when being used for failing directly to dock between second ethernet controller and second universal asynchronous reception/transmitter, the parallel data of described second ethernet controller being exported by described second logical circuit converts the parallel interface data that second universal asynchronous reception/transmitter can directly be handled to.
Second universal asynchronous reception/transmitter of IAC is directly connected to the local bus Local Bus of IAC processor, perhaps second universal asynchronous reception/transmitter is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.
The present invention realizes by above-mentioned functions, can on the interface board of pci bus, PCI-X bus or the PCI Express bus definition of NFC, realize the general hardware platform of integrated IAC, the data channel of Ethernet interface and the management information passage of expansing serial interface are provided.
More than disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, any those skilled in the art can think variation, all should drop in protection scope of the present invention.
Claims (10)
1, a kind of system of communicating by letter between first parts and second parts of realizing is characterized in that described first parts are forwarded parts NFC, and described second parts are separate traffic parts IAC, comprising:
First ethernet controller, the host-processor of connection NFC is used for the conversion of the data and the Ethernet interface data of host-processor;
Second ethernet controller connects first ethernet controller and connects the processor of IAC or be integrated on the processor of IAC, be used for the conversion of the data of processor and Ethernet interface data and set up and first ethernet controller between data communication;
First universal asynchronous reception/transmitter connects first ethernet controller or connects host-processor or directly be integrated on the host-processor, is used for the conversion of the parallel control data and the Serial Control data of host-processor;
Second universal asynchronous reception/transmitter, connect first universal asynchronous reception/transmitter, connect second ethernet controller or connect the processor of IAC or be integrated on the processor of IAC, be used for the parallel control data on the processor and the conversion of Serial Control data, and set up and first universal asynchronous reception/transmitter between the Serial Control data communication.
2, the system as claimed in claim 1, it is characterized in that, also comprise first logical circuit that is arranged between first ethernet controller and the first universal asynchronous reception/transmitter, when being used for failing directly to dock between first ethernet controller and first universal asynchronous reception/transmitter, the parallel data of described first ethernet controller being exported by described first logical circuit converts the parallel interface data that first universal asynchronous reception/transmitter can directly be handled to.
3, system as claimed in claim 2, it is characterized in that, also comprise second logical circuit that is arranged between second ethernet controller and the second universal asynchronous reception/transmitter, when being used for failing directly to dock between second ethernet controller and second universal asynchronous reception/transmitter, the parallel data of described second ethernet controller being exported by described second logical circuit converts the parallel interface data that second universal asynchronous reception/transmitter can directly be handled to.
4, system as claimed in claim 3 is characterized in that, described first logical circuit and second logical circuit also comprise multiplexer.
5, the system as claimed in claim 1 is characterized in that, first universal asynchronous reception/transmitter is directly connected to the local bus Local Bus of host-processor, perhaps
First universal asynchronous reception/transmitter is connected to by a converting unit on the PCI/PCI-X/PCI Express bus of host-processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.
As claim 1 or 5 described systems, it is characterized in that 6, second universal asynchronous reception/transmitter is directly connected to the local bus Local Bus of IAC processor, perhaps
Second universal asynchronous reception/transmitter is connected to by a converting unit on the PCI/PCI-X/PCIExpress bus of processor, and described converting unit is used for the conversion between PCI/PCI-X/PCI Express bus data and the local bus Local Bus data.
7, first parts, it is characterized in that, described first parts are forwarded parts NFC, described NFC comprises host-processor, first ethernet controller and first universal asynchronous reception/transmitter, first ethernet controller connects host-processor by PCI/PCI-X/PCI Express bus, and described first ethernet controller is used for the conversion of the data and the Ethernet interface data of host-processor; First universal asynchronous reception/transmitter connects first ethernet controller or connects host-processor or be integrated on the host-processor, is used for the conversion of the parallel control data and the Serial Control data of host-processor.
8, first parts as claimed in claim 7, it is characterized in that, also comprise first logical circuit that is arranged between first ethernet controller and the first universal asynchronous reception/transmitter, when being used for failing directly to dock between first ethernet controller and first universal asynchronous reception/transmitter, the parallel data of described first ethernet controller being exported by described first logical circuit converts the parallel interface data that first universal asynchronous reception/transmitter can directly be handled to.
9, second parts, it is characterized in that, described second parts are separate traffic parts IAC, described IAC comprises processor, second ethernet controller and second universal asynchronous reception/transmitter, and processor connects second ethernet controller by PCI/PCI-X/PCI Express bus or second ethernet controller is integrated on the processor; Second ethernet controller connects the processor and first ethernet controller of IAC respectively, is used for the conversion of the data and the Ethernet interface data of processor, and set up and first ethernet controller between data communication; Second universal asynchronous reception/transmitter, connect first universal asynchronous reception/transmitter, connect the processor of IAC or connect second ethernet controller or be integrated on the processor of IAC, be used for the parallel control data on the processor and the conversion of Serial Control data, and set up and first universal asynchronous reception/transmitter between the Serial Control data communication.
10, second parts as claimed in claim 9, it is characterized in that, also comprise second logical circuit that is arranged between second ethernet controller and the second universal asynchronous reception/transmitter, when being used for failing directly to dock between second ethernet controller and second universal asynchronous reception/transmitter, the parallel data of described second ethernet controller being exported by described second logical circuit converts the parallel interface data that second universal asynchronous reception/transmitter can directly be handled to.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610140943XA CN100450069C (en) | 2006-10-17 | 2006-10-17 | System and parts for realizing communication between first part and secondary part |
| PCT/CN2007/070005 WO2008046317A1 (en) | 2006-10-17 | 2007-05-09 | System of implementing the integration of different components, network forwarding component and independent application component |
| EP07721628A EP2045958A4 (en) | 2006-10-17 | 2007-05-09 | System of implementing the integration of different components, network forwarding component and independent application component |
| US12/358,427 US20090132727A1 (en) | 2006-10-17 | 2009-01-23 | System for connecting different components, network forwarding component and independent application component |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200610140943XA CN100450069C (en) | 2006-10-17 | 2006-10-17 | System and parts for realizing communication between first part and secondary part |
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| CN1933438A CN1933438A (en) | 2007-03-21 |
| CN100450069C true CN100450069C (en) | 2009-01-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102301663B (en) | 2011-07-06 | 2013-11-06 | 华为技术有限公司 | Message processing method and associated devices |
| CN102761558A (en) * | 2012-07-31 | 2012-10-31 | 哈尔滨工业大学 | Ethernet communication system and communication method based on Xilinx FPGA (Field Programmable Gata Array) and Treck |
| CN102904943B (en) * | 2012-09-28 | 2015-07-08 | 无锡江南计算技术研究所 | Cluster computing system hybrid communication method based on embedded processor memory interface |
| US9871560B2 (en) | 2014-03-28 | 2018-01-16 | Sony Corporation | Electronic device and communication method for NFC |
| CN107391409B (en) * | 2016-05-17 | 2020-02-18 | 新华三技术有限公司 | PCI-E network controller, network equipment and data transmission method |
| CN111309652B (en) * | 2020-02-21 | 2021-05-25 | 深圳震有科技股份有限公司 | Host message sending method, system on chip and storage medium |
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| CN2421781Y (en) * | 1999-12-03 | 2001-02-28 | 杭州南望电力科技有限公司 | Receiver-transmitter for ether net-E1 signal |
| US20040215819A1 (en) * | 2003-02-28 | 2004-10-28 | Fujitsu Limited | Apparatus for and method for controlling packet, and computer program product |
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| CN1230317A (en) * | 1996-06-24 | 1999-09-29 | 艾利森公司 | Telecommunications switch including integrated internet access |
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