CN207676336U - Interconnecting device, telecommunication system - Google Patents

Abstract

This application discloses a kind of interconnecting device, telecommunication systems.Wherein, which includes：PCIe interface, for providing and the communication interface of host equipment；Conversion circuit is connect with PCIe interface, is transmitted descriptor information for reading general-purpose serial bus USB from host equipment by PCIe interface, and USB transmission descriptor information is converted to USB and asks block URB formats, is obtained the first data；And by the second data received from client device by URB format conversions be USB transmission descriptor information.

Description

Interconnecting device, telecommunication system

Technical field

This application involves USB devices to redirect field, in particular to a kind of interconnecting device, telecommunication system.

Background technology

With the continuous development of computer technology, the equipment such as personal data or graphic remote work station, data center are got over Come more complicated, causes the display of equipment and input control apparatus that USB device is needed to cover extremely complex application scenarios, expedite the emergence of The demand that universal serial bus (Universal Serial Bus, referred to as USB) interface equipment zooms out.So-called USB interface is set It is standby to zoom out, refer to the computer that the USB device of local (client) is mounted to distal end (host side).

Currently, industry mainly has the implementation that following USB interface device zooms out：

The USB OVER IP scenarios that Linux source codes are supported；Host (HOST) end needs to install corresponding virtual USB host Controller drives and corresponding software；The driving at the ends HOST is needed for specified platform；The ends HOST, which are mounted software, leads to former system Safety of uniting declines；Also, the USB HOST controller architectures at client (client) end must be with controller knot as defined in agreement Structure is consistent；This method, which can only limit, to be applied in the hardware system of customization；Network link data transmission utilization ratio is low, reduces The access bandwidth of USB.

Bridge joint schemes of the Teradici based on USB controller control interface；The USB HOST controller architectures at the ends client Must be consistent with controller architecture as defined in agreement, therefore, this method, which can only limit, to be applied in the hardware system of customization；Network Link data transfer utilization rate is low, reduces the access bandwidth of USB.

ICron HUB extenders bridge scheme；The program, which is equivalent to, extends USB line, by USB link when Between constrain, distance can only control within 100 meters.

For above-mentioned problem, currently no effective solution has been proposed.

Utility model content

The embodiment of the present application provides a kind of interconnecting device, telecommunication system, at least to solve the current sides of zooming out USB Case there is technical issues that.

According to the one side of the embodiment of the present application, a kind of interconnecting device is provided, including：High-speed peripheral component interconnects (Peripheral Component Interconnect Express, referred to as PCIe) interface, for offer and host equipment Communication interface；Conversion circuit is connect with PCIe interface, for reading universal serial bus from host equipment by PCIe interface USB transmission descriptor information, and USB transmission descriptor information is converted into USB and asks block URB formats, obtain the first data；It receives Power Generation Road is connect with conversion circuit, for the first data to be sent to client device.

According to the another aspect of the embodiment of the present application, a kind of telecommunication system is additionally provided, including：Host equipment；Turn Equipment is connect, the interconnecting device more than interconnecting device, also, interconnecting device is connect by PCIe interface with host equipment；Client End equipment, for the data that receiving host equipment is sent by interconnecting device, and/or, it is sent out to host equipment by interconnecting device Send data.

In the embodiment of the present application, using be provided with PCIe interface, for USB transmission descriptor information to be converted to URB The conversion circuit of the data of format and the interconnecting device of transmission circuit, by PCIe interface access host, to realize client With the communication of host, and then the communication that USB device zooms out is realized, is zoomed out due to carrying out USB device using above-mentioned interconnecting device To the software and hardware of host, there is no limit it is thereby achieved that USB device zooms out the versatility of scheme, to 0 and then solve when communication The current USB schemes of zooming out there is technical issues that.

Description of the drawings

Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：

Fig. 1 is the structural schematic diagram according to a kind of interconnecting device of the embodiment of the present application；

Fig. 2 a are the structural schematic diagrams according to a kind of optional interconnecting device of the embodiment of the present application；

Fig. 2 b are the structural schematic diagrams according to a kind of optional interconnecting device of the embodiment of the present application；

Fig. 3 is the structural schematic diagram according to the optional interconnecting device of another kind of the embodiment of the present application；

Fig. 4 a are the flow charts according to a kind of data transmission method of the embodiment of the present application；

Fig. 4 b are the structure diagrams according to a kind of data transmission device of the embodiment of the present application；

Fig. 5 a are the structural schematic diagrams according to a kind of telecommunication system of the embodiment of the present application；

Fig. 5 b are the structural schematic diagrams according to a kind of telecommunication system of the embodiment of the present application；

Fig. 6 is the structural schematic diagram that principle is zoomed out according to a kind of network of the embodiment of the present application；

Fig. 7 is the structural schematic diagram according to a kind of optional USB link protocol stack of the embodiment of the present application；

Fig. 8 is the structural schematic diagram according to the optional telecommunication system of another kind of the embodiment of the present application；

Fig. 9 is the structural schematic diagram according to a kind of optional client device of the embodiment of the present application；

Figure 10 is the control flow schematic diagram according to a kind of optional host side of the embodiment of the present application；

Figure 11 is the control flow schematic diagram according to a kind of optional client device of the embodiment of the present application；

Figure 12 is a kind of optional USB transmission descriptor list schematic diagram according to the embodiment of the present application；And

Figure 13 is to be closed according to a kind of optional URB data of the embodiment of the present application and the mapping of USB transmission descriptor list It is schematic diagram.

Specific implementation mode

In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, technical solutions in the embodiments of the present application are clearly and completely described, it is clear that described embodiment is only The embodiment of the application part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people The every other embodiment that member is obtained without making creative work should all belong to the model of the application protection It encloses.

It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, " Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way Data can be interchanged in the appropriate case, so as to embodiments herein described herein can in addition to illustrating herein or Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product Or the other steps or unit that equipment is intrinsic.

The embodiment of the present application for ease of understanding is as follows by explanation of technical terms involved in the embodiment of the present application below：

URB：The data structure that USB drivings are realized in linux kernel；

Operation note (operation regs)：Operation note as defined in EHCI agreements, to EHCI USB controllers The interface controlled；

USB transmission descriptor list (101)：transaction descriptors set up in main memory by usb system software,figure(101)。

Embodiment 1

In the related technology, USB device application of function is more and more extensive, but the difference between USB device driving is also more next It is more；Big data, cloud computing user use USB device when, it is desirable to it is consistent with local device usage experience, due to customization Embedded driving cannot meet all equipment, therefore expedite the emergence of the demand of USB OVER IP.USB device is supported to zoom out：It is real Existing USB device is inserted on local client, consistent with user experience on far-end computer is directly inserted in；Support PCIe interface：Base In the EHCI agreement USB controllers of PCIe interface, procotol transmission can compatible software mode；Support many-one：It can realize Many-one mode, i.e. a far-end server (HOST) control multiple terminal (Client) USB devices；It is easy to implement cross-platform： Exempt from that software-driven is installed on HOST machines, is easy to implement cross-platform.

To achieve the above object, the embodiment of the present application provides a kind of interconnecting device, as shown in Figure 1, including：

PCIe interface 11, for providing and the communication interface of host equipment；Interconnecting device is accessed by PCIe interface 11 and is led Machine equipment.

Conversion circuit 13 is connect with above-mentioned PCIe interface 11, for by above-mentioned PCIe interface 11 from above-mentioned host equipment USB transmission descriptor information is read, and above-mentioned USB transmission descriptor information is converted into URB formats, obtains the first data；With And by the second data received from client device by URB format conversions be USB transmission descriptor information.The processing procedure can be with First signal (signal for carry USB transmission descriptor information) of the reception of conversion circuit 13 from host equipment is shown as, and Second signal is generated (USB transmission descriptor information to be converted to URB formats and generates second signal, that is, carries above-mentioned first number According to signal), second signal is sent to transmission circuit.In addition, can to generate third signal (following for carrying for conversion circuit The signal of data：By URB format conversions it is USB transmission descriptor information by the second data received from client device), by the Three signals are sent to host equipment by PCIe interface.

The transfer process can show as the mapping relations using USB transmission descriptor information and URB data, obtain above-mentioned The data of URB formats, i.e. the first data.Wherein, USB transmission descriptor information can be the letter in USB transmission descriptor list Breath.

Transmission circuit 15 is connect with above-mentioned conversion circuit 13, for above-mentioned first data to be sent to client device, with And the second data that client device is returned according to the first data are received, and the second data are sent to conversion circuit.

I.e. the second signal for carrying the first data is sent to client device, and the carrying according to reception by transmission circuit Second data generate fourth signal, and fourth signal is sent to conversion circuit.

In one alternate embodiment, transmission circuit can show as network communication module, that is, pass through real-time performance host Data transmission between client device, specifically, as shown in Figure 2 a, above-mentioned transmission circuit 15, including：Network communication module 151, for above-mentioned first data to be encapsulated as first network data packet, and above-mentioned first network data packet is sent to above-mentioned visitor Family end equipment.It can be seen that interconnecting device provided by the embodiments of the present application is as the communication bridge between host and client device Beam is communicated with client device by network, which can show as different realities according to the difference of usage scenario Existing mode, for example, it can be Ethernet, local area network etc..

It using technical solution provided in this embodiment, can solve the problems, such as to zoom out scheme by USB that there are limitations, such as need Installation of drive software is wanted, hardware configuration is required or limited transmission distance.

As the alternative embodiment of the application, transmission circuit 15 is additionally operable to receive above-mentioned client device according to upper The second data of the first data return are stated, and above-mentioned second data are sent to above-mentioned conversion circuit 13.That is the embodiment of the present application In interconnecting device not only may be implemented host equipment to client device data send, can also realize that client device arrives The data of host equipment are sent, at this point, interconnecting device, which may be considered, plays the role of data forwarding.At this point, above-mentioned conversion electricity Road 13 is additionally operable to above-mentioned second data be USB transmission descriptor information, i.e. interconnecting device by client by URB format conversions Second data of the URB formats that equipment is sent are converted to USB format, to send data to host equipment.Optionally, above-mentioned turn Circuit 13 is changed, is additionally operable to that above-mentioned USB transmission descriptor information is converted to URB formats in the following manner：It is passed based on above-mentioned USB The mapping relations of defeated descriptor information and URB data obtain URB data corresponding with above-mentioned USB transmission descriptor information.

Optionally, as shown in Figure 2 a, above-mentioned interconnecting device can also include but not limited to：Memory 17 is set to above-mentioned Between conversion circuit 13 and above-mentioned transmission circuit 15, for storing above-mentioned first data；Above-mentioned conversion circuit 13, is additionally operable to successively Above-mentioned USB transmission descriptor information in usb data descriptor chained list is converted into URB formats, and is stored to above-mentioned memory In 17.In this way, URB data subsequently can be uniformly processed.

Optionally, as shown in Figure 2 a, above-mentioned interconnecting device can also include but not limited to：Controller 19, for passing through State PCIe interface receive the setting address instruction from above-mentioned host equipment, and according to above-mentioned setting address instruction determine with it is upper State the address that client device is communicated.It should be noted that the controller 19 may be multiple, or one, That is, a controller corresponds to a function, and can also be that a controller realizes multiple functions, it is flexible with specific reference to actual conditions It determines.

Optionally, in order to improve efficiency, above controller 19 is additionally operable to carry out piece of USB device in above-mentioned host equipment During act, existing USB device information is returned to above-mentioned host equipment.That is controller 19 during enumerating USB device, According to the direct returning equipment information of existing USB device information.

It should be noted that each component part in interconnecting device shown in Fig. 1 and 2 can be the knot in identical product Structure, or separately positioned component.For the former, in one alternate embodiment, as shown in Figure 2 b, interconnecting device also wraps A shell 1 is included, which is internally provided with above-mentioned PCIe interface 11, conversion circuit 13, transmission circuit 15,17 and of memory Controller 19, be respectively provided with in shell 1.

Fig. 3 is the structural schematic diagram according to the optional interconnecting device of another kind of the embodiment of the present application.As shown in figure 3, should Translational bridging card contains PCIe interface 30, operation note processing module (301), and host data reads and writes processing module and data Conversion module (300), USB device enumeration processing module (302), USB device management and device descriptor management module (303), Data storage cell 102 and network control module 304.Wherein, operation note processing module (301), USB device enumeration processing Module (302), USB device management and device descriptor management module (303) are equivalent to the controller 21 in Fig. 2；Data store Unit 102 is equivalent to the memory 17 in Fig. 2；Network control module 304 is equivalent to the transmission circuit 15 in Fig. 2.

Wherein, operation note processing module (301) is posted according to the state configuration EHCI/OHCI operations of access USB device Storage, host complete enumerating and communicating to USB device by reading and configuring the state of operation note, and wherein host passes through Operation note specifies the list of USB transmission descriptor (101) entry reference in host system storage unit；Host number According to the chain table pointer that read-write processing module and data conversion module (300) are provided according to operation note, USB transmission description is read List (101) is accorded with, linked list data is converted to successively URB data packets and stored and arrive data storage cell (102), and according to URB Data packet executes status modifier the list of USB transmission descriptor (101) state；USB device enumeration processing module (302), in host When enumerating equipment, USB device enumeration processing module (302) configures device address (set address) according to host and orders It enables, record host assignment is in USB device address to corresponding USB device information table；In addition, in order to reduce device enumeration when Between, during enumerating, USB device enumeration processing module (302) is believed according to the direct returning equipment of existing USB device information Breath；USB device management and device descriptor management module (303) safeguard that USB device information table (305) includes USB device in master Address information, USB device descriptor, USB device interface descriptor, device address at the far end of generator terminal etc., and monitor The hot plug events of Client end equipments；Network control module (304) sends network packet (202) and receives URB data packets Returned data.

Wherein, USB device management and device descriptor management module obtain the USB at the ends client by network control module After device descriptor information, relevant information is saved in USB device information table, and the addresses USB of the equipment are defaulted as 0.

USB device enumeration processing module handles the equipment that the addresses USB are 0 in USB device information table, USB device piece successively The portsc registers lifted in processing module configuration modification operation note processing module (can support 16 device port shapes State), notice HOST end main frames have equipment access, HOST end main frames to carry out enumeration operation to equipment；USB device enumeration processing module Detect that USB device is deletion state in USB device information table, the portsc in configuration modification operation note processing module is posted Storage, notice HOST end main frame equipment disconnect, and HOST end main frames delete the device-dependent transmission descriptor list；USB device Management and device descriptor management module delete the device-dependent message out of USB device information table.Inquire USB device information table The equipment that the interior addresses USB are 0；Processing equipment address is the transmission descriptor list of default address 0, and configures at operation note Reason module and host interact, and complete equipment and find and device address management；USB device information table is inquired, finds some USB Equipment is deletion state, and the portsc registers in configuration modification operation note processing module notify HOST end main frame equipment It disconnects.

Host data reads and writes processing module and data conversion module and reads transmission descriptor list from host, is configured in host Before device address, USB device enumeration processing module is according to the enumeration process of USB device information table response HOST end main frames； After HOST end main frames configure device address, USB device information table is updated.

Host data is read and write processing module and data conversion module and will be read successively from host according to USB device information table Transmission descriptor list is converted to URB data packets, and submits to network control module；When USB device management and device descriptor Management module detects that the ends client USB device is extracted or disconnected, and modification USB device information table is deletion state；Pass through net Network control module obtains the device descriptor information of the ends client USB device, and is saved in USB device information table；Detection The ends client USB device disconnects, and it is deletion state to change USB device information table.

It should be noted that the concrete structure of interconnecting device shown in Fig. 1 to Fig. 3 is only signal, in specific application, this Interconnecting device in application can have more than interconnecting device shown in Fig. 1 to Fig. 3 or few structure.

Embodiment 2

According to the embodiment of the present application, a kind of embodiment of the method for data transmission method is provided, it should be noted that attached The step of flow of figure illustrates can execute in the computer system of such as a group of computer-executable instructions, though also, So logical order is shown in flow charts, but in some cases, it can be with different from shown by sequence execution herein Or the step of description.

Data transmission method provided in this embodiment can run in interconnecting device shown in Fig. 1 to Fig. 3, but be not limited to This.Fig. 4 a are the flow charts according to a kind of optional data transmission method of the embodiment of the present application.As shown in fig. 4 a, this method packet It includes：

Step S402 reads USB transmission descriptor information by PCIe interface from host equipment；

Above-mentioned USB transmission descriptor information is converted to URB formats, obtains the first data by step S404；

In one alternate embodiment, above-mentioned transfer process can be accomplished by the following way：It is retouched based on above-mentioned USB transmission The mapping relations of symbol information and URB data are stated, URB data corresponding with above-mentioned USB transmission descriptor information are obtained.

Above-mentioned first data are sent to client device by step S406.

In one alternate embodiment, the setting address from above-mentioned host equipment is received by above-mentioned PCIe interface to refer to It enables, and determines the address communicated with above-mentioned client device according to above-mentioned setting address instruction.Its address style can be with For IP address, but not limited to this.

As the alternative embodiment of the application, in the enumeration process that above-mentioned host equipment carries out USB device, upwards It states host equipment and returns to existing USB device information.

In one alternate embodiment, the access state of the accessed USB device of above-mentioned client device is detected, wherein on It includes at least one of to state access state：Above-mentioned USB device accesses above-mentioned client device, above-mentioned USB device disconnect with it is upper State the connection of client device；Above-mentioned existing USB device information is updated according to above-mentioned access state.Wherein, above-mentioned " update " Including but not limited to：Modification is deleted, addition.

It should be noted that the executive agent of above-mentioned each step can be interconnecting device, but not limited to this.

In one alternate embodiment, above-mentioned client device is returned according to above-mentioned first data second can also be received Data；And by above-mentioned second data by URB format conversions be USB transmission descriptor information.For example, above-mentioned first data are to be sent to The request message of client device, above-mentioned second data are response message of the above-mentioned client device according to request message feedback.

The embodiment of the present application also provides a kind of data transmission device, which is basis for realizing the above method, Fig. 4 b A kind of structure diagram of the data transmission device of the embodiment of the present application.As shown in Figure 4 b, which includes：Read module 40 is used General-purpose serial bus USB transmission descriptor information is read from host equipment in interconnecting PCIe interface by high-speed peripheral component； Conversion module 42 asks block URB formats for above-mentioned USB transmission descriptor information to be converted to USB, obtains the first data；Hair Module 44 is sent, for above-mentioned first data to be sent to client device.

In one alternate embodiment, as shown in Figure 4 b, above-mentioned data transmission device can also include：Receiving module 46, The second data returned according to above-mentioned first data for receiving above-mentioned client device, and above-mentioned second data are sent to State conversion module 42；Above-mentioned conversion module 42 is additionally operable to above-mentioned second data be USB transmission descriptor by URB format conversions Information.

It should be noted that above-mentioned sending module 44 and receiving module 46 can be realized by a module, for example, it is logical A transmission circuit is crossed to realize, but not limited to this.

Embodiment 3

Fig. 5 a are the structural schematic diagrams according to a kind of telecommunication system of the embodiment of the present application.As shown in Figure 5 a, this is System includes：

Host equipment 50；

Interconnecting device 52, which can be the interconnecting device in embodiment 1, also, interconnecting device 52 passes through PCIe interface is connect with host equipment 50；

Client device 54, for the data that receiving host equipment 50 is sent by interconnecting device, and/or, pass through switching Equipment is to host equipment transmission data.

Optionally, multiple USB interfaces are provided on client device 54.In one alternate embodiment, above system is also May include HUB equipment 56, which connect with host equipment 50, for accessing at least one client device 54.

Fig. 6 is the structural schematic diagram that principle is zoomed out according to a kind of network of the embodiment of the present application.As shown in fig. 6, host side Translational bridging card (i.e. interconnecting device) by PCIe interface (300) access host equipment, according to EHCI/OHCI interface protocols, USB transmission descriptor list (101) is converted to URB (100) data format, and visitor is transferred to by network packet (602) Family machine (i.e. client device), client computer revert to network packet (102) by client bridge application program the URB of client computer (103) data format.In Fig. 6,104 also illustrate that USB transmission accords with list.

Fig. 7 is the structural schematic diagram according to a kind of optional USB link protocol stack of the embodiment of the present application.As shown in fig. 7, The USB link protocol stack of usb host controller based on EHCI/OHCI interface protocols is divided into host software part and USB controls Device PCIe interface card portion, host software part operate in work station or data center, and USB controller PCIe interface card passes through PCIe interface accesses work station or data center；Host software part includes USB device driving, USB core driving (core Driver), USB controller drives, and is that General System all includes；Wherein USB controller drives the upper layer USB to protocol stack The interface that core driver are provided is the USB request block data-interfaces (abbreviation URB) (100) of standard；USB is controlled Device drives the on-link mode (OLM) with USB controller to be defined by EHCI/OHCI interface protocols, and EHCI/OHCI interface protocols define The Data Link Protocol of PCI physical interfaces (300) contains the specific functional configuration register of USB controller, operation note With USB transmission descriptor list (101).

Fig. 8 is the structural schematic diagram according to the optional telecommunication system of another kind of the embodiment of the present application.Such as Fig. 8 institutes Show, which includes：

The host side protocol conversion bridge joint card 80 of host side accesses work station or data center by PCIe interface 800, Client end equipments 82 are connect by network control module 84 with the network control module 86 of host side protocol conversion bridge joint card 80, The USB device that client device 82 accesses is completed to zoom out in work station or the data center at the ends HOST by network；Wherein, Client device 82 includes network control module 84 and client process module 88.

Fig. 9 is the structural schematic diagram according to a kind of optional client device of the embodiment of the present application.As shown in figure 9, USB Equipment zooms out client device and contains client process module 90 (being equivalent to the client process module 88 in Fig. 8), network Control module 92 and multiple USB devices；Client process module 90 contains distal end bridge application program 901, distal end bridge joint is set 902 and USB of standby driving drivings and controller module 903；Wherein, USB driving and controller module 903 be general computer or What embedded system included, the enumeration process to USB device can be completed, and provide conventional data (URB) access to upper layer and connect Mouthful；Distal end bridging device driving 902 belongs to the USB device driving layer of protocol stack, network URB data is converted to the ends Client The URB data packets of support simultaneously submit to USB drivings and controller module 903；Distal end bridge application program 901 is received and is safeguarded The network URB data packets at the ends HOST are submitted to distal end bridge joint and set by the connection request of the ends HOST network, management USB device driving Standby driving 902.

Figure 10 is the control flow schematic diagram according to a kind of optional host side of the embodiment of the present application.As shown in Figure 10, The flow includes：

1, host side protocol conversion bridge joint card insertion enters HOST end main frames, power-up initializing all hardware；

2, after waiting for client end network connections, USB device management and device descriptor management module (403) are read The ends client USB device information；

3, operation note processing module (401) notifies the ends HOST to have new USB device to connect by configuring operation note Enter；

4, HOST end main frames provide the operation entry of USB transmission descriptor list (101) by configuring operation note；

5, host data read-write processing module and data conversion module (400) read data descriptor chained list, and by data Descriptor is converted into URB data packets (102)；

6, URB data packets are forwarded to the ends client by network control module (404)；

7, network end data is waited for reply；

8, it receives the ends client URB bag datas to reply, host data reads and writes processing module and data conversion module (400) will Data recovery is converted into descriptor state；

9, host data read-write processing module and data conversion module (400) change HOST end main frame descriptor states；

If 10, descriptor link also has effective descriptor, 5-8 processes are repeated；

If 11, the 7th step, the network port or device port, operation note processing module (400) configuration operation are found Register notifies host end main frames equipment port.

Figure 11 is the control flow schematic diagram according to a kind of optional client device of the embodiment of the present application.Such as Figure 11 institutes Show,

1, host side protocol conversion bridge joint card insertion enters HOST end main frames, power-up initializing hardware and software；

2, USB controller finds new USB device access；

3, USB drivings and controller module (503) enumerate USB device；

4, after device enumeration, which is mounted to client bridge joint and set by client bridge application program (501) Standby driving (502)；

5, it waits for normal with the ends HOST network link；

6, client bridge application program (501) sends USB device information table to the ends HOST；

7, client bridge application program (501) waits for HOST ends to send network URB data packets (102), and by network URB Data packet (102) submits to client bridging device driving (502)；

8, USB drivings and control module (503) are submitted in client bridging device driving (502)；

9, the pending URB data end-of-packet such as；

10, USB drivings and controller module (503) reply HOST end main frame URB data packet implementing results；

11, next URB data packets are handled, the 7th step to the 10th step is repeated；

12, detect that USB device disconnects, notice HOST end main frame equipment disconnects.

Figure 12 is a kind of optional USB transmission descriptor list schematic diagram according to the embodiment of the present application.As shown in figure 12, In the alternative embodiment of the application, USB transmission descriptor includes two classes：QH and qTD.

In the alternative embodiment of the application, the USB in URB data and USB transmission descriptor list can be passed through The mapping relations for transmitting descriptor information realize that format conversion, Figure 13 are a kind of optional URB numbers according to the embodiment of the present application According to the mapping relations schematic diagram with USB transmission descriptor list.As shown in figure 13, iTD lists contain required for URN data packets All data, there are mapping relations with URB data.Wherein, above-mentioned flow path switch includes：Host data reads and writes processing module And the memory pointers that data conversion module (400) is provided by operation note processing module (401), it reads QH and qTD and passes Defeated descriptor list；QH transmits chained list content as shown in the iTD lists in Figure 13, contains the required all data of URB packets. It is URB data packets according to URB Data Format Transforms.

Using scheme provided in this embodiment, additional software need not be installed on host；HOST end systems are not invaded, Ensure original system safety and stability；Convenient across multiple systems platforms, it is easy to use；Usb host control to the ends access point Client There is no limit can preferably be used in cross-platform scene with device.

Above-mentioned the embodiment of the present application serial number is for illustration only, can not represent the quality of embodiment.

In above-described embodiment of the application, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment The part of detailed description may refer to the associated description of other embodiment.

In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module It connects, can be electrical or other forms.

The unit illustrated as separating component may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it can also It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can be stored in a computer read/write memory medium.Based on this understanding, the technical solution of the application is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the application whole or Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code Medium.

The above is only the preferred embodiment of the application, it is noted that for the ordinary skill people of the art For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered It is considered as the protection domain of the application.

Claims (7)

1. a kind of interconnecting device, which is characterized in that including：

High-speed peripheral component interconnects PCIe interface, for providing and the communication interface of host equipment；

Conversion circuit is connect with the PCIe interface, for reading general string from the host equipment by the PCIe interface Row bus USB transmission descriptor information, and the USB transmission descriptor information is converted into USB and asks block URB formats, it obtains First data；And by the second data received from client device by URB format conversions be USB transmission descriptor information；

Transmission circuit is connect with the conversion circuit, for first data to be sent to client device, and reception institute Second data that client device is returned according to first data are stated, and second data are sent to the conversion Circuit.

2. interconnecting device according to claim 1, which is characterized in that the transmission circuit, including：Network communication module, For first data to be encapsulated as first network data packet, and the first network data packet is sent to the client Equipment.

3. interconnecting device according to claim 1, which is characterized in that

The interconnecting device further includes：Memory is set between the conversion circuit and the transmission circuit, and with described turn Circuit connection is changed, for storing first data.

4. interconnecting device according to any one of claim 1 to 3, which is characterized in that the interconnecting device further includes：

Controller is connect with the PCIe interface, for receiving the setting from the host equipment by the PCIe interface Address instruction.

5. a kind of telecommunication system, which is characterized in that including：

Host equipment；

Interconnecting device, the interconnecting device are interconnecting device any one of Claims 1-4, also, the interconnecting device PCIe interface is interconnected by high-speed peripheral component to connect with the host equipment；

Client device, the data sent by the interconnecting device for receiving the host equipment, and/or, by described Interconnecting device is to the host equipment transmission data.

6. telecommunication system according to claim 5, which is characterized in that

Multiple general-purpose serial bus USB interfaces are provided on the client device.

7. telecommunication system according to claim 5, which is characterized in that the system also includes：HUB equipment, with institute Host equipment connection is stated, for accessing at least one client device.