CN105988948B

CN105988948B - A kind of method and apparatus of data transmission

Info

Publication number: CN105988948B
Application number: CN201510078538.9A
Authority: CN
Inventors: 杨国全; 王欢; 吴波; 范伟云; 肖文文; 张兴明
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2015-02-13
Filing date: 2015-02-13
Publication date: 2019-02-12
Anticipated expiration: 2035-02-13
Also published as: CN105988948A

Abstract

The present invention provides a kind of method and apparatus of data transmission, to solve two controllers existing in the prior art when carrying out data interaction, the problem of reducing bandwidth availability ratio, and reduce data transmission efficiency.The method comprise the steps that the data type for the specific data without protocol stack encapsulation that sending device is sent as needed, determines specific data corresponding child window in the window；Specific data is written in window in corresponding child window by sending device；Sending device determines the corresponding receiving device memory address in address of specific data corresponding child window in the window according to the address of child window and the corresponding relationship of receiving device memory address；Determining receiving device memory address is sent to receiving device by sending device, and the specific data in determining child window is sent to receiving device.Bandwidth availability ratio can be improved using method of the invention, and can be improved data transmission efficiency.

Description

A kind of method and apparatus of data transmission

Technical field

The present invention relates to field of computer technology, in particular to a kind of method and apparatus of data transmission.

Background technique

Currently, two controllers of dual controller storage product are when carrying out data interaction, sending side controller can be first All data (such as: statistical data, order data, mirror image data, user's block number evidence and network interface card transmission data etc.) are passed through TCP/IP (Transmission Control Protocol/Internet Protocol, transmission control protocol and network interconnection Agreement) protocol stack carries out package operation, after data type, the information such as data length are added in the header, it is written to window, then Pass through PCI-E (Peripheral Component Interconnect-Express, high-speed peripheral interconnection) high-speed bus Channel is sent to reception side controller in streaming fashion.

As shown in Figure 1, data to be sent to reception side controller in streaming fashion to send side controller in the prior art. It is found that only one window of transmitting terminal controller end from Fig. 1, wherein white hollow square is that free area (can store number According to), black lines grid square is occupied area (storing data), the initiation region of window for store WP (write pointer) and The value of RP (read pointer), the value of WP indicate the position of the presently written data of window, and the value of RP indicates that receiving side controller currently reads The position of data.It is found that a certain region of the memory of receiving end controller end corresponds to the window for sending side controller from Fig. 1, Wherein, white hollow square is free area (can store data), and black lines grid square is that occupied area (has stored number According to), the initiation region of the region of memory is used to store the value of WP and RP, and the value of WP indicates the position of the presently written data of window, The value of RP indicates to receive the position of side controller current read request.Transmitting terminal controller end is when needing to send data, by data After carrying out package operation by ICP/IP protocol stack, the data after encapsulation are written to next free time of the direction of the WP in window Region, and the value of the WP in more new window, and updated WP value is sent to reception side controller, so as to receive side controller The value for updating WP sends interrupt notification after the completion of data write-in and receives side controller；Controller is received after receiving interruption, Determining has data write-in to complete, and according to the RP and updated WP received in the side controller region of memory, determines that write-in is completed Data storage address, the data are read from determining storage address, then to data carry out de-packaging operation, determine data Data type, the data after unpacking are then sent to corresponding upper layer application.

Existing two controllers send only one window of side controller when carrying out data interaction, need interaction There are many data types of data, such as: statistical data type (receives side controller not needing to carry out in time statistical data Update, and also not high to the accuracy requirement of statistical data, statistical data can be transmitted in a manner of obstructed overflow-type), (data traffic of the order data of interaction is less between two controllers, but sends side controller needs and wait until for order data type Receive side controller and handle order data, the order data could be deleted after returning to processing result), mirror image data type (sends out Sending end controller can be used new mirror image data and cover old mirror image data when mirror image data is written to window, as long as Ask and guarantee that the mirror image data of last time write-in is errorless, be indifferent to intermediate mirror image data transmission process) and user's block number According to type, (data volume of user's block number evidence of interaction is larger between two controllers, needs to guarantee the interaction of intermediate each data Reliability, receive side controller it is no handle send user's block number that side controller is sent according to when, user block number evidence is not Can be capped), all types of data are written in a window and are sent, the data for needing to need to send every time into The operation of row package, the information such as data type, data length is added in packet header, to receive side controller to the number after encapsulation When according to carrying out de-packaging operation, the corresponding upper layer application of the data is determined according to the data type information in packet header, and by the data It is sent to determining upper layer application.

In the prior art, side controller is sent to need different types of data carrying out package behaviour by ICP/IP protocol stack After work, the data after encapsulation are written to the same window, and reception side controller, receiving end control are sent to by streaming fashion Device processed needs to carry out de-packaging operation to the data after encapsulation, in package and unpacking process after receiving the data after encapsulation It needs to carry out a large amount of data copy work, thus largely occupies cpu resource, reduce bandwidth availability ratio, and whole In a data transmission procedure, all types of data are sent using single streaming fashion, data is reduced and sends effect Rate.

There are also a kind of situations to be for the prior art, sends side controller when needing to send data, first assists data Stack encapsulation is discussed, the data after encapsulation are then sent to reception side controller, this entire data transmission procedure of mode needs to send out The participation of multiple entities of sending end controller and reception side controller, so the hardware cost of system is relatively high.

In conclusion two current controllers reduce bandwidth availability ratio, and reduce number when carrying out data interaction According to transmitting efficiency.

Summary of the invention

The present invention provides a kind of method of data transmission, is carrying out to solve two controllers existing in the prior art When data interaction, the problem of reducing bandwidth availability ratio, and reduce data transmission efficiency.

The embodiment of the present invention provides a kind of method of data transmission, comprising:

The data type for the specific data without protocol stack encapsulation that sending device is sent as needed, determines described specific Data corresponding child window in the window；

The specific data is written in window in the corresponding child window by the sending device；

The sending device determines described specific according to the address of child window and the corresponding relationship of receiving device memory address The corresponding receiving device memory address in address of the data corresponding child window in the window；

Determining receiving device memory address is sent to receiving device by the sending device, and by the determining sub- window The specific data in mouthful is sent to the receiving device.

The different types of specific data without protocol stack encapsulation is written to different by sending device of the embodiment of the present invention After in child window, receiving device memory address and specific data are sent to receiving device, due in entire data transmission procedure In do not need to carry out protocol stack encapsulation to specific data, and different types of data can be written to different child windows by transmitting terminal In, thus bandwidth availability ratio is improved, and improve data transmission efficiency.

Preferably, the data type is statistical data；

The specific data is written in window in the corresponding child window by the sending device, comprising:

The sending device determines the specific data according to the corresponding relationship of statistical data type and child window region The corresponding child window region of statistical data type；

The specific data is written to corresponding described in window by the sending device according to determining child window region In child window.

Since the embodiment of the present invention is by the corresponding child window of statistical data, according to statistical data Type division at multiple sub- windows Different types of statistical data is separately handled, reduces CPU usage, reduce memory usage, is convenient for by mouth region domain The processing of data.

Preferably, the data type is order data；

The sending device determines command entry idle in the child window, and the specific data is written to the son In window in idle command entry.

It, will since the corresponding child window of order data is divided into the command entry of several fixed sizes by the embodiment of the present invention Order data is stored into an idle commands item, only needs to handle the data of fixed size every time, convenient for processing behaviour Make.

Preferably, before the specific data is written in window in the corresponding child window by the sending device, Further include:

The specific data is carried out package operation by the sending device, and command code and object module information are added to packet In head；

After the specific data is written in window in the corresponding child window by the sending device, further includes:

The corresponding data mode traffic sign placement of the command entry for storing the specific data is that data are quasi- by the sending device It is standby；

The specific data in the determining child window is sent to the receiving device by the sending device, is also wrapped It includes:

The specific data of the sending device by the corresponding data mode mark of the command entry and after encapsulating is together Be sent to the receiving device so that the receiving device determine the data mode mark be data preparation after, will be specific Data and command code are sent to the corresponding object module of the object module information.

It is set preferably, the specific data in the determining child window is sent to the reception by the sending device After standby, further includes:

The sending device is after the feedback information and storage address for receiving the receiving device, according to the storage ground Location stores the feedback information into the corresponding feedback areas of command entry；

The sending device will store the feedback of the feedback information after the feedback information of storage is to complete information The data mode traffic sign placement of the corresponding command entry in region is data completion；

The sending device is after determining that needs are reported to upper layer application, the order for the data mode mark that data are completed After the feedback information stored in the corresponding feedback areas of item is reported to upper layer application, the command entry and the command entry pair are deleted The data in feedback areas answered, using the command entry as idle command entry.

Since sending device of the embodiment of the present invention is after determining that needs are reported to upper layer application, by the data shape of data completion After the feedback information stored in the corresponding feedback areas of the command entry of state mark is reported to upper layer application, delete command item and order Data in the corresponding feedback areas of item, using command entry as idle command entry, in order to arrive new order data storage In the command entry.

Preferably, the data type is mirror image data；

The sending device determines described in write-in according to the address of child window and the corresponding relationship of sending device memory address The corresponding sending device memory address of the child window of specific data；

The specific data is written in sending device by the sending device according to determining sending device memory address In depositing.

After specific data is written in child window due to sending device of the embodiment of the present invention, and the specific data is write Enter into sending device memory, so that the mirror image data of sending device and receiving device is consistent.

Preferably, the data type is user's block number evidence；

The sending device determines the corresponding Virtual Block Device interface of block device for needing to store the specific data, and will The specific data carries out package operation, and Virtual Block Device mark and/or block device mark are added in packet header；

The specific data after encapsulation is written to by the sending device by the determining Virtual Block Device interface In window in the corresponding child window；

The specific data in the determining child window is sent to the receiving device by the sending device, packet It includes:

The specific data after encapsulation in the determining child window is sent to the reception by the sending device Equipment, so that the specific data is sent to the mark of the Virtual Block Device in packet header and/or block device mark by the receiving device Know corresponding block device.

Since specific data is written in child window by transmitting terminal of the embodiment of the present invention by Virtual Block Device interface, concurrently Receiving device is given, the specific data received is sent to corresponding block device by receiving device, so that sending device will be specific Data are stored into the block device of receiving device.

Preferably, the specific data after the encapsulation in the determining child window is sent to institute by the sending device After stating receiving device, further includes:

Feedback data and receiving device memory address of the sending device after the encapsulation for receiving the receiving device Afterwards, according to the corresponding relationship of the address of child window and receiving device memory address, determine the feedback data in receiving device The corresponding child window of receiving device memory address address, wherein including virtual in the packet header of the feedback data after encapsulation Block device mark and/or block device mark；

The sending device stores the feedback data into the address of the determining child window, and needs determining After being reported to upper layer application, by the void that the feedback data is identified by the Virtual Block Device and/or block device mark is determining Quasi- block device interface is reported to upper layer application.

Preferably, the specific data is written in window in the corresponding child window by the sending device, comprising:

The specific data is written in window in the corresponding child window by the sending device in the form of queue；

The sending device gives multiple queuing data transmitted in parallel in the determining child window to the receiving device.

Since specific data is written in child window by the embodiment of the present invention in the form of queue, and will be in determining child window Multiple queuing data transmitted in parallel to receiving device, improve data transmission efficiency.

Preferably, the data type is that network interface card transmits data；

The specific data is packaged by the sending device by protocol stack, and will pass through agreement by Microsoft Loopback Adapter The specific data after stack encapsulation carries out media access control MAC encapsulation；

The specific data after the sending device encapsulates MAC is written in window in the corresponding child window；

The specific data after MAC encapsulation in the determining child window is passed through streaming fashion by the sending device It is sent to receiving device.

After capable of needing to carry out the operation of MAC package by the specific data that network interface card is sent due to the embodiment of the present invention, it will seal Specific data after dress is written in corresponding child window, and is sent to reception in streaming fashion by high-speed bus channel and is set Standby, entire data transmission procedure is by Microsoft Loopback Adapter rather than network card chip realizes that data are transmitted, thus reduces system Hardware cost.

Preferably, determining receiving device memory address is sent to receiving device by the sending device, and will be determining The specific data in the child window is sent to the receiving device, comprising:

Determining receiving device memory address is sent to receiving device by high-speed bus channel by the sending device, and The specific data in the determining child window is sent to the receiving device by high-speed bus channel.

Receiving device receives receiving device memory address and specific data from sending device, wherein the reception is set Standby memory address is that the sending device is determined according to the child window in the window for storing the specific data；

The receiving device will be in the receiving device memory address of the specific data storages to the determination.

Since receiving device of the embodiment of the present invention is according to the corresponding relationship of the address of receiving device memory address and child window, Determine receiving device memory address, and by specific data storages into determining receiving device memory address, it should convenient for needs When specific data is reported to upper layer application, is determined according to the corresponding receiving device memory of specific data and the upper layer reported is needed to answer With.

Preferably, the specific data is one of following data:

Statistical data, order data, mirror image data, user's block number evidence and network interface card transmit data.

Preferably, the specific data is order data；

The receiving device is also wrapped after in the receiving device memory address of the specific data storages to the determination It includes:

The receiving device is after determining that the corresponding data mode mark of command entry is data preparation, by the specific data The corresponding object module of the object module information is sent to command code；

The receiving device is after the feedback information for receiving the object module feedback, by the feedback information and storage Address is sent to the sending device, so that the sending device stores the feedback information to life according to the storage address It enables in the corresponding feedback areas of item.

Preferably, the specific data is user's block number evidence；

The specific data is sent to described specific by the receiving device when determination needs to send the specific data Virtual Block Device mark and/or block device in the packet header of data identify corresponding block device；

The receiving device is after the feedback data and receiving device memory address for receiving the block device feedback, by institute It states feedback data and carries out package operation, Virtual Block Device mark and/or block device mark are added in packet header；

The receiving device by after encapsulation the feedback data and receiving device memory address be sent to it is described transmission set It is standby, so that the sending device identifies the feedback data by the Virtual Block Device and/or block device identifies determination Virtual Block Device interface is reported to upper layer application.

Preferably, the specific data is that network interface card transmits data；

The specific data after the receiving device encapsulates MAC carries out de-packaging operation, will be described specific after unpacking Data are sent to the corresponding upper layer application of the specific data.

The embodiment of the present invention provides a kind of sending device of data transmission, comprising:

First determining module, for the data type of the specific data without protocol stack encapsulation sent as needed, really Determine the specific data corresponding child window in the window；

Writing module, for the specific data to be written in window in the corresponding child window；

Second determining module, for determining institute according to the address of child window and the corresponding relationship of receiving device memory address State the corresponding receiving device memory address in address of the specific data corresponding child window in the window；

Sending module, the receiving device memory address for will determine are sent to receiving device, and by the determining son The specific data in window is sent to the receiving device.

Preferably, the data type is statistical data；

The write module is specifically used for:

According to the corresponding relationship of statistical data type and child window region, the statistical data type of the specific data is determined Corresponding child window region；According to determining child window region, the specific data is written to the corresponding son in window In window.

Preferably, the data type is order data；

The write module is specifically used for:

It determines command entry idle in the child window, and the specific data is written to idle in the child window In command entry.

Preferably, the write module is also used to:

The specific data is subjected to package operation, command code and object module information are added in packet header；

Second determining module is also used to:

It is data preparation by the corresponding data mode traffic sign placement of the command entry for storing the specific data；

The sending module is also used to:

The specific data after the corresponding data mode mark of the command entry and encapsulation is sent jointly into described connect Receiving unit so that the receiving device determine the data mode mark be data preparation after, by specific data and command code It is sent to the corresponding object module of the object module information.

Preferably, the sending module is also used to:

After the feedback information and storage address for receiving the receiving device, according to the storage address by the feedback Information is stored into the corresponding feedback areas of command entry；It, will be described in storage after the feedback information of storage is to complete information The data mode traffic sign placement of the corresponding command entry of the feedback areas of feedback information is data completion；It needs to answer to upper layer determining After reporting, the feedback information stored in the corresponding feedback areas of command entry for the data mode mark that data are completed is reported to After upper layer application, delete the data in the command entry and the corresponding feedback areas of the command entry, using the command entry as Idle command entry.

Preferably, the data type is mirror image data；

The write module is also used to:

According to the corresponding relationship of the address of child window and sending device memory address, the institute that the specific data is written is determined State the corresponding sending device memory address of child window；According to determining sending device memory address, the specific data is written Into sending device memory.

Preferably, the data type is user's block number evidence；

The write module is specifically used for:

It determines and needs to store the corresponding Virtual Block Device interface of block device of the specific data, and by the specific data Package operation is carried out, Virtual Block Device mark and/or block device mark are added in packet header；Pass through the determining virtual block The specific data after encapsulation is written in window in the corresponding child window by equipment interface；

The sending module is specifically used for:

The specific data after encapsulation in the determining child window is sent to the receiving device, so that described The specific data is sent to the mark of the Virtual Block Device in packet header to receiving device and/or block device identifies corresponding piece and sets It is standby.

Preferably, the sending module is also used to:

After the encapsulation for receiving the receiving device feedback data and receiving device memory address after, according to child window Address and receiving device memory address corresponding relationship, determine receiving device memory of the feedback data in receiving device The address of the corresponding child window in address, wherein encapsulation after the feedback data packet header in include Virtual Block Device mark and/ Or block device mark；By feedback data storage into the address of the determining child window, and need determining to upper layer After reporting, the virtual block that the feedback data is identified by the Virtual Block Device and/or block device mark is determining is set Standby interface is reported to upper layer application.

Preferably, the write module is specifically used for:

The specific data is written in window in the corresponding child window in the form of queue；

The sending module is specifically used for:

Give multiple queuing data transmitted in parallel in the determining child window to the receiving device.

Preferably, the data type is that network interface card transmits data；

The write module is specifically used for:

The specific data is packaged by protocol stack, and by Microsoft Loopback Adapter by the institute after protocol stack encapsulates It states specific data and carries out media access control MAC encapsulation；The specific data after MAC is encapsulated is written to corresponding in window In the child window；

The sending module is specifically used for:

The specific data after MAC encapsulation in the determining child window is sent to reception by streaming fashion to set It is standby.

Preferably, the sending module is specifically used for:

Determining receiving device memory address is sent to receiving device by high-speed bus channel, and passes through high-speed bus The specific data in the determining child window is sent to the receiving device by channel.

The embodiment of the present invention provides a kind of receiving device of data transmission, comprising:

Receiving module, for receiving receiving device memory address and specific data from sending device, wherein described Receiving device memory address is that the sending device is determined according to the child window in the window for storing the specific data；

Memory module, for will be in the receiving device memory address of the specific data storages to the determination.

Preferably, the specific data is one of following data:

Preferably, the specific data is order data；

The memory module is also used to:

After determining that the corresponding data mode mark of command entry is data preparation, the specific data and command code are sent Give the object module information corresponding object module；It, will be described after the feedback information for receiving the object module feedback Feedback information and storage address are sent to the sending device, so that the sending device will be described anti-according to the storage address Feedforward information is stored into the corresponding feedback areas of command entry.

Preferably, the specific data is user's block number evidence；

The memory module is also used to:

When determination needs to send the specific data, the specific data is sent in the packet header of the specific data Virtual Block Device mark and/or block device identify corresponding block device；In the feedback data for receiving the block device feedback After receiving device memory address, the feedback data is subjected to package operation, by Virtual Block Device mark and/or block device mark Knowledge is added in packet header；By after encapsulation the feedback data and receiving device memory address be sent to the sending device, with Make the sending device by the feedback data is identified by the Virtual Block Device and/or block device mark is determining virtual block Equipment interface is reported to upper layer application.

Preferably, the specific data is that network interface card transmits data；

The memory module is also used to:

The specific data after MAC is encapsulated carries out de-packaging operation, and the specific data after unpacking is sent to institute State the corresponding upper layer application of specific data.

Detailed description of the invention

Fig. 1 is that data are sent to reception side controller signal by the transmission side controller in background technique in streaming fashion Figure；

Fig. 2 a is the method flow schematic diagram of one data of embodiment of the present invention transmission；

Fig. 2 b is mapping schematic diagram of two window of the embodiment of the present invention with memory；

Fig. 3 is mapping schematic diagram of the child window region with memory of three statistical data child window of the embodiment of the present invention；

Fig. 4 is mapping schematic diagram of the command entry with memory of four order data child window of the embodiment of the present invention；

Fig. 5 is mapping schematic diagram of the five mirror image data child window of the embodiment of the present invention with memory；

Fig. 6 is mapping schematic diagram of the six user's block data sub-window of the embodiment of the present invention with memory；

Fig. 7 is that the data sub-window for the data that the embodiment of the present invention seven needs to transmit by network interface card is illustrated with the mapping of memory Figure；

Fig. 8 is child window module block diagram of the embodiment of the present invention eight based on NTB；

Fig. 9 is the method flow schematic diagram of nine data of embodiment of the present invention transmission；

Figure 10 is the sending device structural schematic diagram of ten data of embodiment of the present invention transmission；

Figure 11 is the receiving device structural schematic diagram of 11 data of embodiment of the present invention transmission.

Specific embodiment

Sending device of the embodiment of the present invention: the data class of the specific data without protocol stack encapsulation sent as needed Type determines the specific data corresponding child window in the window；The specific data is written to corresponding described in window In child window；According to the corresponding relationship of the address of child window and receiving device memory address, determine the specific data in window In the corresponding child window the corresponding receiving device memory address in address；Determining receiving device memory address is sent to Receiving device, and the specific data in the determining child window is sent to the receiving device.Receiving device: it receives To receiving device memory address and specific data from sending device, wherein the receiving device memory address is the transmission Equipment is determined according to the child window in the window for storing the specific data；By the specific data storages to the determination In receiving device memory address.Due to sending device of the embodiment of the present invention by it is different types of without protocol stack encapsulation certain number After being written in different child windows, receiving device memory address and specific data are sent to receiving device, due to whole It does not need to carry out protocol stack encapsulation to specific data in a data transmission procedure, and different types of data can be written for transmitting terminal Into different child windows, thus bandwidth availability ratio is improved, and improve data transmission efficiency.

Wherein, the data type of specific data of the embodiment of the present invention includes but is not limited to following data types: statistical data, Order data, mirror image data, user's block number evidence and network interface card transmission data etc..

Wherein, protocol stack of the embodiment of the present invention includes but is not limited to following protocol stacks: ICP/IP protocol stack etc..

The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.

As shown in Figure 2 a, the method for one data of embodiment of the present invention transmission includes:

The data type for the specific data without protocol stack encapsulation that step 200, sending device are sent as needed, determines The specific data corresponding child window in the window；

The specific data is written in window in the corresponding child window by step 201, the sending device；

Step 202, the sending device are determined according to the address of child window and the corresponding relationship of receiving device memory address The corresponding receiving device memory address in address of the specific data corresponding child window in the window；

Determining receiving device memory address is sent to receiving device by step 203, the sending device, and will be determining The specific data in the child window is sent to the receiving device.

As shown in Figure 2 b, two window of the embodiment of the present invention with memory mapping schematic diagram, from Fig. 2 b it is found that sending device window Mouth is divided into 5 child windows, and child window 1 is statistical data child window, and child window 2 is mirror image data child window, and child window 3 is to need By the data sub-window for the data that network interface card transmits, child window 4 is order data child window, and child window 5 is user's block number according to son Window, child window 1 are mapped to the memory address 1 of receiving device, and child window 2 is mapped to the memory address 2 of receiving device, child window 3 are mapped to the memory address 3 of receiving device, and child window 4 is mapped to the memory address 4 of receiving device, and child window 5 is mapped to reception The memory address 5 of equipment；Receiving device window is divided into 5 child windows, and child window 1 is statistical data child window, and child window 2 is mirror As data sub-window, child window 3 is the data sub-window for needing the data transmitted by network interface card, and child window 4 is order data Window, child window 5 are user's block data sub-window, and child window 1 is mapped to the memory address 1 of sending device, and child window 2 is mapped to The memory address 2 of sending device, child window 3 are mapped to the memory address 3 of sending device, and child window 4 is mapped to sending device Memory address 4, child window 5 are mapped to the memory address 5 of sending device.Any child window be all by high-speed bus channel with it is right The memory address answered carries out data interaction.Fig. 2 b is only intended to illustrate, and the number of actual child window is according to actual data class Window can be divided into 4 child windows if there is the data of 4 seed types by how much determinations of type, can if there is the data of 6 seed types Window is divided into 6 child windows.The size of child window of the embodiment of the present invention can be configured based on practical experience, can also It is adjusted with the size of child windows according to actual needs.

Such as: in figure 2b, the storage address of the window of sending device is 1~500, the storage address of child window 1 is 1~ 20, the storage address of child window 2 is 21~40, and the storage address of child window 3 is 41~60, and the storage address of child window 4 is 61 ~80, the storage address of child window 5 is 81~500.Receiving device memory address corresponding with sending device window be 100~ 600, memory address 1 is 101~120, and memory address 2 is 121~140, and memory address 3 is 141~160, and memory address 4 is 161~180, memory address 5 is 181~600.Sending device into child window 1 No. 5 storage address be written data after, Receiving device stores the data of write-in into No. 105 storage address of memory address 1.

Sending device of the embodiment of the present invention is written to different types of data in different child windows, and by different Sending method sends the data being written in corresponding child window, concrete implementation mode are as follows:

Mode one: the data type is statistical data；

Statistical data type of the embodiment of the present invention includes but is not limited to following types: CPU usage data, memory usage Data, network usage data and IO load data etc..

As shown in figure 3, mapping schematic diagram of the child window region of three statistical data child window of the embodiment of the present invention with memory, As can be seen from Figure 3, sending device statistical data child window is divided into 4 sub- window areas, and child window region 1 is CPU (Central Processing Unit, central processing unit) occupancy data sub-window region, child window region 2 is memory usage data Child window region, child window region 3 are network usage data sub-window region, and child window region 4 is IO (Input/ Output, input/output) load data child window region, child window region 1 is mapped to the memory address 11 of receiving device, sub Window area 2 is mapped to the memory address 12 of receiving device, and child window region 3 is mapped to the memory address 13 of receiving device, son Window area 4 is mapped to the memory address 14 of receiving device.When data being written in any child window region of sending device, meeting Data to be written is transferred in the corresponding memory address of receiving device.Fig. 3 is only intended to illustrate, actual child window region Number can be by the sub- window of statistical data if there is the statistical data of 3 seed types according to how much determinations of actual statistical data type Mouth is divided into 3 sub- window areas, if there is the statistical data of 6 seed types, statistical data child window can be divided into 6 sub- windows Mouth region domain.

Such as: in Fig. 3, after CPU usage data are written in child window region 1 by sending device, receiving device will The CPU usage data of write-in are stored to the corresponding position in memory address 11.

Mode two: the data type is order data；

Order data child window is divided into the command entry of several fixed sizes by the embodiment of the present invention, in order to locate every time The data for managing fixed size, specifically by the implementation of order data writing commands data sub-window are as follows:

The command entry of free time of the embodiment of the present invention is the command entry for not being stored in data.

The embodiment of the present invention is according to actual processing needs, before order data is written to order data child window, Order data is carried out simply to be packaged into operation, concrete implementation mode are as follows:

After order data in order data child window is sent to receiving device by sending device of the embodiment of the present invention, receive Equipment can carry out respective handling according to the order data received, and return to operating result, concrete implementation mode are as follows:

As shown in figure 4, mapping schematic diagram of the command entry of four order data child window of the embodiment of the present invention with memory, from figure 4 it is found that sending device order data child window has 4 command entries and one-to-one 4 feedback areas of 4 command entries, white Hollow command entry is idle command entry (not being stored in the command entry of data), and black lines grid command entry is to be stored in data Command entry, white hollow feedback areas are not to be stored in the feedback areas of feedback information, and black lines grid feedback areas is to have deposited Enter the feedback areas of feedback information.Command entry 21 corresponds to feedback areas 211, the corresponding feedback areas 212 of command entry 22, command entry 23 Corresponding feedback areas 213, the corresponding feedback areas 214 of command entry 24；The corresponding memory address 221 of the memory address 211 of receiving device, Memory address 212 corresponds to memory address 222, the corresponding memory address 223 of memory address 213, the corresponding memory address of memory address 214 224.Command entry 21 corresponds to the corresponding memory address 221 of memory address 211, feedback areas 211, the corresponding memory address of command entry 22 212, the corresponding memory address 222 of feedback areas 212, the corresponding memory address 213 of command entry 23, the corresponding memory of feedback areas 213 Location 223, the corresponding memory address 214 of command entry 24, the corresponding memory address 224 of feedback areas 214.Fig. 4 is only intended to illustrate, practical Command entry and the number of feedback areas be determined according to actual order data child window size, according to the sub- window of order data Mouth size, can be divided into 100 command entries and 100 feedback areas with order data child window, big according to order data child window It is small, 500 command entries and 500 feedback areas can also be divided into order data child window.

Such as: in Fig. 4, the order data after package is written in command entry 22 by sending device, and by command entry 22 Data Identification be set as data preparation after, receiving device stores the order data of write-in into memory address 212, and root According to the object module information in the order data packet header, which is sent to the corresponding target mould of object module information Feedback information is sent to sending device after being handled according to order data by block, object module, and sending device is by feedback information Sending device is sent to storage address.Sending device stores feedback information into feedback areas 212, and will be by command entry 22 Data Identification be set as data completion.Sending device is after determining that needs are reported to upper layer application, by the data of data completion After feedback information in the corresponding feedback areas 212 of command entry 22 of Status Flag is reported to upper layer application, delete command item 22 In order data and feedback areas 212 in feedback information.

Mode three: the data type is mirror image data；

As shown in figure 5, mapping schematic diagram of the five mirror image data child window of the embodiment of the present invention with memory, as can be seen from Figure 5, hair Equipment mirror image data child window is sent there are 12 items, white hollow item is idle item (not being stored in the item of data), black lines net The item of lattice Xiang Weiyi deposit data.Item 301~item 312 corresponds respectively to 310~memory address of memory address of receiving device 312, white hollow memory address is idle memory address (not being stored in the memory address of data), black lines grid memory Location is the memory address for being stored in data.Item 301~item 312 is with corresponding respectively to 310~memory of memory address of sending device Location 312, white hollow memory address are idle memory address (not being stored in the memory address of data), black lines grid memory Address is the memory address for being stored in data.Fig. 5 is only intended to illustrate, the number of the item of actual mirror image data child window according to Actual mirror image data child window size is determined, can be with mirror image data child window point according to mirror image data child window size 500 items can also be divided into mirror image data child window according to mirror image data child window size for 100 items.

Such as: in Fig. 5, mirror image data is written in item 301, item 303, item 304, item 307 and item 309 by sending device Afterwards, receiving device is by the mirror image data of write-in storage to memory address 301, memory address 303, memory address 304, memory In location 307 and memory address 309, for receiving device after the completion of storing the mirror image data, sending device deposits the mirror image data It stores up in memory address 301, memory address 303, memory address 304, memory address 307 and memory address 309, is set so as to send Mirror image data in standby memory is consistent with the mirror image data in receiving device memory.

Mode four: the data type is user's block number evidence；

After user's block number evidence after encapsulation is sent to receiving device by sending device of the embodiment of the present invention, or receive reception The feedback data of equipment feedback reports the feedback data received after determining that needs are reported to upper layer application, specific real Existing mode are as follows:

The embodiment of the present invention can be stored and be sent out in the form of a queue since the data volume of user's block number evidence is larger It send, concrete implementation mode are as follows:

As shown in fig. 6, mapping schematic diagram of the six user's block data sub-window of the embodiment of the present invention with memory, as can be seen from Figure 6, User's block data sub-window of sending device is connected with Virtual Block Device interface, user block data sub-window Zhong You data queue 1, Data queue 3, data queue 3 and data queue 4；Sending device has block device 1, block device 2 ... block device n, and (n is greater than 2 Positive integer), memory Zhong You data queue 5, data queue 6, data queue 7 and data queue 8.User's block number of receiving device It is connected according to child window with Virtual Block Device interface, user block data sub-window Zhong You data queue 5, data queue 6, data queue 7 and data queue 8；Receiving device has block device 1, block device 2 ... block device n (n is the positive integer greater than 2), has in memory Data queue 1, data queue 2, data queue 3 and data queue 4.Data team in user's block data sub-window of sending device Column 1 correspond to the data queue 1 in receiving device memory, and the data queue 2 in user's block data sub-window of sending device is right It should correspond in the data queue 3 in the data queue 2 in receiving device memory, user's block data sub-window of sending device and connect Data queue 3 in receiving unit memory, the data queue 4 in user's block data sub-window of sending device correspond to receiving device Data queue 4 in memory；Data queue 5 in user's block data sub-window of receiving device corresponds in sending device memory Data queue 5, the data queue 6 in user's block data sub-window of receiving device corresponds to the data in sending device memory Queue 6, the data queue 7 in user's block data sub-window of receiving device correspond to the data queue 7 in sending device memory, Data queue 8 in user's block data sub-window of receiving device corresponds to the data queue 8 in sending device memory.Fig. 6 It is the number of the data queue for illustrating, in actual user's block data sub-window according to actual user's block data sub-window Size is determined, and according to user's block data sub-window size, can be divided into 50 data queues, root with user's block data sub-window According to user's block data sub-window size, 170 data queues can also be divided into user's block data sub-window.

Such as: in Fig. 6, sending device by user's block number according to be written to the data queue 1 of user's block data sub-window~ After in data queue 4, data queue 1~data queue 4 of the receiving device by user's block number of write-in according to storage into memory In, receiving device is sent to corresponding block device after the completion of by user's block number according to storage, by user's block number evidence.Block device Feedback data is sent to receiving device, receiving device carries out the feedback data after receiving the feedback data from block device After storage is into 5~data queue of data queue 8 in user's block data window after encapsulation, sending device will be anti-after the encapsulation Data storage is presented in 5~data queue of data queue 8 into memory, and after determining that needs are reported to upper layer application, by this Feedback data is reported to by the Virtual Block Device interface of Virtual Block Device mark and/or block device mark determination in packet header Layer application.

Mode five: the data type is that network interface card transmits data；

The specific data is packaged by the sending device by protocol stack, and will pass through agreement by Microsoft Loopback Adapter The specific data after stack encapsulation carries out MAC (Medium Access Control, media access control) encapsulation；

By increasing a Microsoft Loopback Adapter for sending device and receiving device, sending device can will need the embodiment of the present invention After carrying out protocol stack encapsulation and MAC encapsulation by the data that network interface card transmits, the data after encapsulation are written to and need to pass through network interface card In the data sub-window of the data of transmission, it is sent to receiving device in streaming fashion.Entire data transmission procedure is by virtual Network interface card rather than network card chip realize data transmission, thus reduce the hardware cost of system.

As shown in fig. 7, data sub-window the reflecting with memory for the data that the embodiment of the present invention seven needs to transmit by network interface card Schematic diagram is penetrated, as can be seen from Figure 7, the data sub-window of sending device is divided into several items, wherein white hollow square is idle item (can store data), black lines grid square are to occupy item (storing data), and first item of data sub-window is used for The value of WP and RP is stored, the value of WP indicates the position of the presently written data of data sub-window, and the value of RP indicates that receiving device is current Read the position of data.It, should it is found that a certain region of the memory of receiving device corresponds to the data sub-window of sending device from Figure 10 Region of memory is also divided into several items, wherein white hollow square is idle item (can store data), black lines grid square To occupy item (storing data), first item of the region of memory is used to store the value of WP and RP, and the value of WP indicates data The position of the presently written data of window, the value of RP indicate the position of receiving device current read request.Sending device is needing to send When data, after data are carried out package operation by ICP/IP protocol stack, the data after encapsulation are written in data sub-window Next idle item for being directed toward of WP, and update the value of the WP in data sub-window, and updated WP value is sent to reception Equipment sends interrupt notification receiving device after the completion of data write-in so that receiving device updates the value of WP；Receiving device is connecing After receiving interruption, determining has data write-in to complete, and according to the RP and updated WP in the receiving device region of memory, determination is write The storage address for entering the data of completion reads the data from determining storage address, then carries out de-packaging operation to data, really Then data after unpacking are sent to corresponding upper layer application by the data type of fixed number evidence.

Sending device of the embodiment of the present invention can carry out data interaction with receiving device by high-speed bus channel, specifically Implementation are as follows:

High-speed bus of embodiment of the present invention channel can be PCI-E high-speed bus channel, and PCI-E high-speed bus channel includes But be not limited to following channels: NTB (Non Transparent Bridge, non-transparent bridge), TB (Transparent Bridge, Transparent bridge) etc..

As shown in figure 8, child window module block diagram of the embodiment of the present invention eight based on NTB, as it can be observed in the picture that sending device or Receiving device include: statistical data child window, mirror image data child window, need by network interface card transmit data the sub- window of data Mouth, order data child window and user's block data sub-window, 5 child windows are all connected with NTB.

As shown in figure 9, the method for nine data of embodiment of the present invention transmission includes:

Step 900, receiving device receive receiving device memory address and specific data from sending device, wherein institute Stating receiving device memory address is that the sending device is determined according to the child window in the window for storing the specific data；

Step 901, the receiving device will be in the receiving device memory address of the specific data storages to the determination.

Receiving device of the embodiment of the present invention can receive different types of data, including but not limited to following data: statistics Data, order data, mirror image data, user's block number evidence and network interface card transmit data.Receiving device is different types of by what is received After data storage is into determining receiving device memory address, certain data are needed to carry out special treatment process:

If the specific data is order data, the receiving device is by the specific data storages to the determination After in receiving device memory address, further includes:

Such as: in Fig. 4, receiving device stores the order data that sending device is written in command entry 22 with arriving memory In location 212, and according to the object module information in the order data packet header, which is sent to object module information pair Feedback information is sent to sending device after being handled according to order data by the object module answered, object module, sending device Feedback information and storage address are sent to sending device, so that sending device carries out accordingly according to feedback information and storage address Storage operation after, after determining that needs are reported to upper layer application, feedback information is reported to upper layer application, in delete command item Order data and feedback areas in feedback information.

If the specific data is user's block number evidence, the receiving device is by the specific data storages to the determination Receiving device memory address in after, further includes:

Such as: in Fig. 6, receiving device sending device is written to the data queue 1 in user's block data sub-window~ User's block number in data queue 4 is according to storage in 1~data queue of data queue 4 into memory, and receiving device is by the use After the completion of family block number is according to storage, which is sent to corresponding block device.Block device is sent to receiving device to be fed back Data, receiving device is after receiving the feedback data from block device, and user is arrived in storage after which is packaged Sending device is fed back in 5~data queue of data queue 8 in block data window, so that sending device will be anti-after the encapsulation Feedback data carry out storage operation, and after determining that needs are reported to upper layer application, which is reported to upper layer application.

If the specific data is that network interface card transmits data, the receiving device is by the specific data storages to described true After in fixed receiving device memory address, further includes:

Based on the same inventive concept, a kind of sending device that data are transmitted and a kind of number are additionally provided in the embodiment of the present invention According to the receiving device of transmission, since the corresponding method of sending device that the data of Figure 10 are transmitted is a kind of data of the embodiment of the present invention The method of transmission, since the corresponding method of receiving device that the data of Figure 11 are transmitted is a kind of data transmission of the embodiment of the present invention Method, therefore the implementation of equipment of the embodiment of the present invention may refer to the implementation of system, overlaps will not be repeated.

As shown in Figure 10, the sending device of ten data of embodiment of the present invention transmission includes:

First determining module 1000, the data class for the specific data without protocol stack encapsulation sent as needed Type determines the specific data corresponding child window in the window；

Writing module 1001, for the specific data to be written in window in the corresponding child window；

Second determining module 1002, for according to the address of child window and the corresponding relationship of receiving device memory address, really The corresponding receiving device memory address in address of the fixed specific data corresponding child window in the window；

Sending module 1003, the receiving device memory address for will determine are sent to receiving device, and by determining institute The specific data stated in child window is sent to the receiving device.

Preferably, the data type is statistical data；

The write module 1001 is specifically used for:

Preferably, the data type is order data；

The write module 1001 is specifically used for:

Preferably, the write module 1001 is also used to:

Second determining module 1002 is also used to:

The sending module 1003 is also used to:

Preferably, the sending module 1003 is also used to:

Preferably, the data type is mirror image data；

The write module 1001 is also used to:

Preferably, the data type is user's block number evidence；

The write module 1001 is specifically used for:

The sending module 1003 is specifically used for:

Preferably, the sending module 1003 is also used to:

Preferably, the write module 1001 is specifically used for:

The sending module 1003 is specifically used for:

Preferably, the data type is that network interface card transmits data；

The write module 1001 is specifically used for:

The specific data is packaged by protocol stack, and by Microsoft Loopback Adapter by the institute after protocol stack encapsulates It states specific data and carries out MAC encapsulation；The specific data after MAC is encapsulated is written to the corresponding child window in window In；

The sending module 1003 is specifically used for:

Preferably, the sending module 1003 is specifically used for:

As shown in figure 11, the receiving device of 11 data of embodiment of the present invention transmission includes:

Receiving module 1100, for receiving receiving device memory address and specific data from sending device, wherein The receiving device memory address is that the sending device is determined according to the child window in the window for storing the specific data；

Memory module 1101, for will be in the receiving device memory address of the specific data storages to the determination.

Preferably, the specific data is one of following data:

Preferably, the specific data is order data；

The memory module 1101 is also used to:

Preferably, the specific data is user's block number evidence；

The memory module 1101 is also used to:

Preferably, the specific data is that network interface card transmits data；

The memory module 1101 is also used to:

In conclusion the different types of specific data encapsulated without protocol stack is written sending device of the embodiment of the present invention After into different child windows, receiving device memory address and specific data are sent to receiving device, due in entire data It does not need to carry out protocol stack encapsulation to specific data in transmission process, and different types of data can be written to difference by transmitting terminal Child window in, thus improve bandwidth availability ratio, and improve data transmission efficiency.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of method of data transmission, which is characterized in that this method comprises:

The data type for the specific data without protocol stack encapsulation that sending device is sent as needed, determines the specific data Corresponding child window in the window；

The sending device determines the specific data according to the address of child window and the corresponding relationship of receiving device memory address The corresponding receiving device memory address in the address of the corresponding child window in the window；

Determining receiving device memory address is sent to receiving device by the sending device, and will be in the determining child window The specific data be sent to the receiving device.

2. the method as described in claim 1, which is characterized in that the data type is statistical data；

The sending device determines the statistics of the specific data according to the corresponding relationship of statistical data type and child window region The corresponding child window region of data type；

The sending device is written to the corresponding sub- window in window according to determining child window region, by the specific data In mouthful.

3. the method as described in claim 1, which is characterized in that the data type is order data；

The sending device determines command entry idle in the child window, and the specific data is written to the child window In the command entry of middle free time.

4. method as claimed in claim 3, which is characterized in that the specific data is written in window by the sending device Before in the corresponding child window, further includes:

The specific data is carried out package operation by the sending device, and command code and object module information are added to packet header In；

The corresponding data mode traffic sign placement of the command entry for storing the specific data is data preparation by the sending device；

The specific data in the determining child window is sent to the receiving device by the sending device, further includes:

The sending device sends the specific data after the corresponding data mode mark of the command entry and encapsulation together To the receiving device, so that the receiving device is after determining that the data mode mark is data preparation, by specific data The corresponding object module of the object module information is sent to command code.

5. method as claimed in claim 4, which is characterized in that the sending device will be described in the determining child window Specific data is sent to after the receiving device, further includes:

The sending device, will according to the storage address after the feedback information and storage address for receiving the receiving device The feedback information storage is into the corresponding feedback areas of command entry；

The sending device will store the feedback areas of the feedback information after the feedback information of storage is to complete information The data mode traffic sign placement of corresponding command entry is data completion；

The sending device is after determining that needs are reported to upper layer application, the command entry pair for the data mode mark that data are completed After the feedback information stored in the feedback areas answered is reported to upper layer application, deletes the command entry and the command entry is corresponding Data in feedback areas, using the command entry as idle command entry.

6. the method as described in claim 1, which is characterized in that the data type is mirror image data；

The sending device determines that write-in is described specific according to the address of child window and the corresponding relationship of sending device memory address The corresponding sending device memory address of the child window of data；

The sending device is written to sending device memory according to determining sending device memory address, by the specific data In.

7. the method as described in claim 1, which is characterized in that the data type is user's block number evidence；

The sending device determines the corresponding Virtual Block Device interface of block device for needing to store the specific data, and will be described Specific data carries out package operation, and Virtual Block Device mark and/or block device mark are added in packet header；

The specific data after encapsulation is written to window by the determining Virtual Block Device interface by the sending device In in the corresponding child window；

The specific data in the determining child window is sent to the receiving device by the sending device, comprising:

The specific data after encapsulation in the determining child window is sent to the receiving device by the sending device, So that the specific data is sent to the mark of the Virtual Block Device in packet header to the receiving device and/or block device mark corresponds to Block device.

8. the method for claim 7, which is characterized in that the sending device is by the encapsulation in the determining child window The specific data afterwards is sent to after the receiving device, further includes:

The sending device after the encapsulation for receiving the receiving device feedback data and receiving device memory address after, root According to the address of child window and the corresponding relationship of receiving device memory address, reception of the feedback data in receiving device is determined The address of the corresponding child window in device memory address, wherein including Virtual Block Device in the packet header of the feedback data after encapsulation Mark and/or block device mark；

The sending device stores the feedback data into the address of the determining child window, and needs upwards determining After layer application reports, by the virtual block that the feedback data is identified by the Virtual Block Device and/or block device mark is determining Equipment interface is reported to upper layer application.

9. the method for claim 7, which is characterized in that the specific data is written in window by the sending device In the corresponding child window, comprising:

10. the method as described in claim 1, which is characterized in that the data type is that network interface card transmits data；

The specific data is packaged by the sending device by protocol stack, and will be sealed by protocol stack by Microsoft Loopback Adapter The specific data after dress carries out media access control MAC encapsulation；

The sending device sends the specific data after the MAC encapsulation in the determining child window by streaming fashion To receiving device.

11. the method as described in claim 1~10 is any, which is characterized in that the sending device is by determining receiving device Memory address is sent to receiving device, and the specific data in the determining child window is sent to the reception and is set It is standby, comprising:

Determining receiving device memory address is sent to receiving device by high-speed bus channel by the sending device, and is passed through The specific data in the determining child window is sent to the receiving device by high-speed bus channel.

12. a kind of method of data transmission, which is characterized in that this method comprises:

Receiving device receives receiving device memory address and specific data from sending device, wherein in the receiving device Depositing address is that the sending device is determined according to the child window in the window for storing the specific data；

13. method as claimed in claim 12, which is characterized in that the specific data is one of following data:

14. method as claimed in claim 13, which is characterized in that the specific data is order data；

The receiving device will be after in the receiving device memory address of the specific data storages to the determination, further includes:

The receiving device is after determining that the corresponding data mode mark of command entry is data preparation, by the specific data and life Code is enabled to be sent to the corresponding object module of object module information；

The receiving device is after the feedback information for receiving the object module feedback, by the feedback information and storage address It is sent to the sending device, so that the sending device stores the feedback information to command entry according to the storage address In corresponding feedback areas.

15. method as claimed in claim 13, which is characterized in that the specific data is user's block number evidence；

The specific data is sent to the specific data when determination needs to send the specific data by the receiving device Packet header in Virtual Block Device mark and/or block device identify corresponding block device；

The receiving device, will be described anti-after the feedback data and receiving device memory address for receiving the block device feedback It presents data and carries out package operation, Virtual Block Device mark and/or block device mark are added in packet header；

The receiving device by after encapsulation the feedback data and receiving device memory address be sent to the sending device, with Make the sending device by the feedback data is identified by the Virtual Block Device and/or block device mark is determining virtual block Equipment interface is reported to upper layer application.

16. method as claimed in claim 13, which is characterized in that the specific data is that network interface card transmits data；

The specific data after the receiving device encapsulates MAC carries out de-packaging operation, by the specific data after unpacking It is sent to the corresponding upper layer application of the specific data.

17. a kind of sending device of data transmission, which is characterized in that the sending device includes:

First determining module determines institute for the data type of the specific data without protocol stack encapsulation sent as needed State specific data corresponding child window in the window；

Second determining module, for determining the spy according to the address of child window and the corresponding relationship of receiving device memory address Fixed number according to the corresponding child window in the window the corresponding receiving device memory address in address；

Sending module, the receiving device memory address for will determine are sent to receiving device, and by the determining child window In the specific data be sent to the receiving device.

18. sending device as claimed in claim 17, which is characterized in that the data type is statistical data；

The write module is specifically used for:

According to the corresponding relationship of statistical data type and child window region, determine that the statistical data type of the specific data is corresponding Child window region；According to determining child window region, the specific data is written to the corresponding child window in window In.

19. sending device as claimed in claim 17, which is characterized in that the data type is order data；

The write module is specifically used for:

It determines command entry idle in the child window, and the specific data is written to order idle in the child window Xiang Zhong.

20. sending device as claimed in claim 19, which is characterized in that the write module is also used to:

Second determining module is also used to:

The sending module is also used to:

The specific data after the corresponding data mode mark of the command entry and encapsulation is sent jointly to the reception to set It is standby, so that the receiving device sends specific data and command code after determining that the data mode mark is data preparation Give the object module information corresponding object module.

21. sending device as claimed in claim 20, which is characterized in that the sending module is also used to:

After the feedback information and storage address for receiving the receiving device, according to the storage address by the feedback information It stores in the corresponding feedback areas of command entry；After the feedback information of storage is to complete information, the feedback will be stored The data mode traffic sign placement of the corresponding command entry of the feedback areas of information is data completion；It needs determining in upper layer application After report, the feedback information stored in the corresponding feedback areas of command entry for the data mode mark that data are completed is reported to upper layer After, the data in the command entry and the corresponding feedback areas of the command entry are deleted, using the command entry as the free time Command entry.

22. sending device as claimed in claim 17, which is characterized in that the data type is mirror image data；

The write module is also used to:

According to the corresponding relationship of the address of child window and sending device memory address, the son that the specific data is written is determined The corresponding sending device memory address of window；According to determining sending device memory address, the specific data is written to hair It send in device memory.

23. sending device as claimed in claim 17, which is characterized in that the data type is user's block number evidence；

The write module is specifically used for:

It determines the corresponding Virtual Block Device interface of block device for needing to store the specific data, and the specific data is carried out Virtual Block Device mark and/or block device mark are added in packet header by package operation；Pass through the determining Virtual Block Device The specific data after encapsulation is written in window in the corresponding child window by interface；

The sending module is specifically used for:

The specific data after encapsulation in the determining child window is sent to the receiving device, so that the reception The specific data is sent to the mark of the Virtual Block Device in packet header to equipment and/or block device identifies corresponding block device.

24. sending device as claimed in claim 23, which is characterized in that the sending module is also used to:

After the encapsulation for receiving the receiving device feedback data and receiving device memory address after, according to the ground of child window The corresponding relationship of location and receiving device memory address determines receiving device memory address of the feedback data in receiving device The address of corresponding child window, wherein including Virtual Block Device mark and/or block in the packet header of the feedback data after encapsulation Device identification；By feedback data storage into the address of the determining child window, and need determining to upper layer application After reporting, the Virtual Block Device that the feedback data is identified by the Virtual Block Device and/or block device mark is determining is connect Mouth is reported to upper layer application.

25. sending device as claimed in claim 23, which is characterized in that the write module is specifically used for:

The sending module is specifically used for:

26. sending device as claimed in claim 17, which is characterized in that the data type is that network interface card transmits data；

The write module is specifically used for:

The specific data is packaged by protocol stack, and by Microsoft Loopback Adapter by the spy after protocol stack encapsulates Fixed number is according to progress media access control MAC encapsulation；The specific data after MAC is encapsulated is written to corresponding described in window In child window；

The sending module is specifically used for:

The specific data after MAC encapsulation in the determining child window is sent to receiving device by streaming fashion.

27. the sending device as described in claim 17~26 is any, which is characterized in that the sending module is specifically used for:

Determining receiving device memory address is sent to receiving device by high-speed bus channel, and passes through high-speed bus channel The specific data in the determining child window is sent to the receiving device.

28. a kind of receiving device of data transmission, which is characterized in that the receiving device includes:

Receiving module, for receiving receiving device memory address and specific data from sending device, wherein the reception Device memory address is that the sending device is determined according to the child window in the window for storing the specific data；

29. receiving device as claimed in claim 28, which is characterized in that the specific data is one of following data:

30. receiving device as claimed in claim 29, which is characterized in that the specific data is order data；

The memory module is also used to:

After determining that the corresponding data mode mark of command entry is data preparation, the specific data and command code are sent to mesh Mark the corresponding object module of module information；After the feedback information for receiving the object module feedback, by the feedback information It is sent to the sending device with storage address, so that the sending device deposits the feedback information according to the storage address It stores up in the corresponding feedback areas of command entry.

31. receiving device as claimed in claim 29, which is characterized in that the specific data is user's block number evidence；

The memory module is also used to:

Determine need to send the specific data when, the void that the specific data is sent in the packet header of the specific data Quasi- block device mark and/or block device identify corresponding block device；It is receiving the feedback data of the block device feedback and is connecing After receiving unit memory address, the feedback data is subjected to package operation, Virtual Block Device mark and/or block device mark are added Enter into packet header；By after encapsulation the feedback data and receiving device memory address be sent to the sending device so that institute Sending device is stated by the feedback data is identified by the Virtual Block Device and/or block device mark is determining Virtual Block Device Interface is reported to upper layer application.

32. receiving device as claimed in claim 29, which is characterized in that the specific data is that network interface card transmits data；

The memory module is also used to:

The specific data after MAC is encapsulated carries out de-packaging operation, and the specific data after unpacking is sent to the spy Fixed number is according to corresponding upper layer application.