CN108319428A - A kind of method and device of digital independent - Google Patents
A kind of method and device of digital independent Download PDFInfo
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- CN108319428A CN108319428A CN201711482453.2A CN201711482453A CN108319428A CN 108319428 A CN108319428 A CN 108319428A CN 201711482453 A CN201711482453 A CN 201711482453A CN 108319428 A CN108319428 A CN 108319428A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
- G06F3/0611—Improving I/O performance in relation to response time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer And Data Communications (AREA)
Abstract
This application discloses a kind of method and device of digital independent, to solve it is existing in the prior art realize that the process interface number of data memory transfer is more based on RDMA, the longer problem of processing procedure time delay of data memory transfer.This method includes：Starter sends input/output commands request to object machine, and the input/output commands request is used to indicate the starter and needs the write-in data obtained；The starter receives the remote direct data access that object machine is sent according to input/output commands request and is written first after data packet and the intermediate write-in data packet of remote direct data access, receive the first message that the object machine is sent, the first message includes that remote direct data access is ultimately written data packet and input/output commands response, wherein, input/output commands response for responding the IO Command request that the starter is sent, inform IO Command request described in the starter it is processed at.
Description
Technical field
This application involves information technology field more particularly to a kind of method and devices of digital independent.
Background technology
In data storage procedure between two computer equipments, (remote is accessed using remote direct data
Direct memory access, RDMA) mode, it is by network that the data of wherein one computer storage area are directly incoming
It to the memory block of another computer, will not be had any impact to operating system using which, less uses computer
Processing function, eliminate external memory replicate and text exchange operation, improve system performance.
With Nonvolatile memory (the non-volatile memory express over based on converged network
Fabric, NoF) technology development, it is higher and higher to the requirement of time delay during RDMA, and in the prior art in data path
On repeating process in interaction it is relatively more, cause time delay longer, for example, two computer equipments are respectively controller A
With controller B, controller B read from controller A be written to the data of itself data forwarding process it is as follows：Controller B
The network interface card (RDMAnetwork interface card, RNIC) for having remote direct data access capability starter
(initiator, INI) sends input/output commands to the object machine (target, TGT) of controller A and asks (input/
Output command request, IO CMD Request), the TGT receives the IO CMD that the INI is sent
After Request, remote direct data access write-in data packet (RDMA write first packet) first is sent first,
Continue to send the intermediate write-in data packet (RDMA write middle packet) of remote direct data access, then send long-range
Immediate data access is ultimately written data packet (RDMA write last packet), the INI receive every time data packet it
RDMA write last packet all are sent to TGT feeding back confirmation messages (ACK), then TGT afterwards, and receives TGT and is directed to institute
After the ACK for stating RDMA write last packet feedbacks, TGT sends input/output commands to INI and responds (input/
Output command response, IO CMD Response), for informing that IO CMD Request described in INI are processed
It completes.
To sum up, realize that the process interface number of data memory transfer is more based on RDMA, data memory transfer processes
Cheng Shiyan longer.
Invention content
The application provides a kind of method and device of digital independent, to solve to be based on RDMA realization data in the prior art
The process interface number of memory transfer is more, the longer problem of processing procedure time delay of data memory transfer.
In a first aspect, this application provides a kind of method of digital independent, starter sends input/output life to object machine
Request, the input/output commands request is enabled to be used to indicate the starter and need the write-in data obtained；The object machine connects
Receive the input/output commands request；The object machine asks to send to the starter according to the input/output commands
Data packet and the intermediate write-in data packet of remote direct data access is written in remote direct data access first, and the starter receives
Data packet is written first to remote direct data access and remote direct data access is intermediate is written data packet, the object machine to
The starter sends first message, and the starter receives the first message, and the first message includes long-range straight
It connects data access and is ultimately written data packet and input/output commands response, wherein the input/output commands response is used for
The IO Command request that the starter is sent is responded, informs that IO Command request described in the starter is processed
It completes.
By the above method, remote direct data access is contained in the first message that the starter receives and is finally write
Enter data packet and input/output commands response, the remote direct data access is ultimately written data packet and input/output
Command response is sent in same message, it is possible to reduce the process interface number of data memory transfer shortens data storage and turns
The processing procedure time delay of shifting.
It, can also be to institute after the starter receives the first message that object machine is sent in a kind of possible design
It states object machine and sends the first confirmation message, wherein first confirmation message is for informing that it is described that the object machine has received
First message.
In a kind of possible design, the input/output commands response can carry vertical in the first message
Count in region.In this way, after being extended by the byte number of the immediate carried to first message, it is vertical after extension
The input/output commands response can be stored by counting region, and first message is enable to carry remote direct data access simultaneously
It is ultimately written data packet and input/output commands response.
Second aspect, the application provide a kind of starter, including receiving unit and transmission unit, the receiving unit and hair
Send unit that can also be realized by corresponding logic functional block by hardware realization.Receiving unit and transmission unit are logical
Cross what reciprocal may be implemented to be completed by starter in any possible design in above-mentioned first aspect and its first aspect
Procedure.
The third aspect, the application provide a kind of object machine, including receiving unit and transmission unit, the receiving unit and hair
Send unit that can also be realized by corresponding logic functional block by hardware realization.Receiving unit and transmission unit are logical
Cross what reciprocal may be implemented to be completed by object machine in any possible design in above-mentioned first aspect and its first aspect
Procedure.
Fourth aspect, the embodiment of the present application also provides a kind of equipment, including processor and memory, the memory is used
In storage software program, the processor is for reading the software program stored in the memory and realizing first aspect, the
The method that any one design of one side provides.
5th aspect, present invention also provides a kind of computer readable storage mediums, and above-mentioned first is executed for being stored as
Computer software instructions used in the function of any one design of aspect, first aspect, it includes for executing above-mentioned first
Program designed by the method for any one design of aspect, first aspect.
6th aspect, the embodiment of the present application also provides a kind of chip, the chip is connected with memory, for reading simultaneously
The software program stored in the memory is executed, to realize the side of any one design of first aspect or above-mentioned first aspect
Method.
Description of the drawings
Fig. 1 is a kind of data flow schematic diagram provided by the present application；
Fig. 2 is a kind of data writing process schematic diagram provided by the present application；
Fig. 3 is a kind of method flow diagram of digital independent provided by the present application；
Fig. 4 is the method flow diagram of another digital independent provided by the present application；
Fig. 5 is a kind of message format schematic diagram provided by the present application；
Fig. 6 is another starter structural schematic diagram provided by the present application；
Fig. 7 is another object machine structural schematic diagram provided by the present application；
Fig. 8 is a kind of hardware structure diagram of digital independent device provided by the present application.
Specific implementation mode
The embodiment of the present application is described in further detail below in conjunction with attached drawing.
The embodiment of the present application provides a kind of method and device of digital independent, for solving existing in the prior art be based on
RDMA realizes that the process interface number of data memory transfer is more, the longer problem of processing procedure time delay of data memory transfer.
Wherein, method and apparatus be based on same inventive concept, since the principle that method and apparatus solves the problems, such as is similar, equipment
Implementation with method can be with cross-reference, and overlaps will not be repeated.
Hereinafter, the part term in the application is explained, to make those skilled in the art understand that.
Remote direct data accesses (remote direct memory access, RDMA), refers to and one is counted by network
The data of calculation machine memory block are directly passed to the memory block of another computer, without having any impact to operating system, compared with
The data storage method of few processing function using computer.
Starter (initiator, INI) belongs to network interface card (the RDMA network for having remote direct data access capability
Interface card, RNIC) in a part, for sending and receiving data.
Object machine (target, TGT) belongs to network interface card (the RDMA network for having remote direct data access capability
Interface card, RNIC) in a part, for sending and receiving data.
In addition, it is necessary to understand, in the description of the present application, the vocabulary such as " first ", " second " are only used for distinguishing description
Purpose, be not understood to indicate or imply relative importance, can not be interpreted as instruction or hint sequence.
This application can be applied to the process of data memory transfer is realized based on RDMA.Specifically, realizing number based on RDMA
According to the data flow of the process of memory transfer as shown in Figure 1, two computer equipments are respectively controller A and controller in Fig. 1
B, expression is the process that data are written from controller A to controller B, and the network interface card of controller A is read from the memory block of controller A
Data, are sent to the network interface card of controller B, and the data received are written to the memory block of controller B by the network interface card of controller B.Its
In, as shown in Fig. 2, being divided into 4 steps, the first step, the network interface card for receiving controller A is sent the specific ablation process of controller B
Data packet, second step by network interface card carry out resolve packet, third step, (a) is by the data packet writing controller B's after parsing
Memory block (b) while to the network interface card of controller A sends confirmation message.In the prior art, the operation that the first step more refines
Journey is as shown in figure 3, be the prior art corresponding with the embodiment of the present application, specifically, controller B's has remote direct data
The starter (initiator, INI) of the network interface card (RDMAnetwork interface card, RNIC) of access capability is to control
The object machine (target, TGT) of device A sends input/output commands and asks (input/output command request, IO
CMD Request), after the TGT receives the IO CMDRequest that the INI is sent, remote direct data is sent first
Access write-in data packet (RDMA write first packet) first continues to send the intermediate write-in of remote direct data access
Data packet (RDMA write middle packet) then sends remote direct data access and is ultimately written data packet
(RDMAwrite last packet), the INI are received after data packet every time to TGT feeding back confirmation messages (ACK),
RDMA write last packet are sent in TGT, and receives TGT and is fed back for the RDMAwrite last packet
ACK after, TGT to INI send input/output commands respond (input/output command response, IO CMD
Response), for inform IO CMD Request described in INI it is processed at.Wherein, IO the CMD Request and IO
CMD Response can be encapsulated and be sent in messages.Pass through the above method, it may appear that realize that data storage turns based on RDMA
The process interface number of shifting is more, the longer problem of processing procedure time delay of data memory transfer.
To solve the above-mentioned problems, digital independent scheme provided by the present application is specifically described below in conjunction with the accompanying drawings.
It is the method flow diagram of digital independent provided by the present application referring to Fig. 4.This method includes：
S401, starter send input/output commands request to object machine, and the input/output commands request is for referring to
Show that the starter needs the write-in data obtained.Specifically, as shown in Figure 1, starter belongs to the network interface card in controller B, mesh
Mark device belongs to the network interface card in controller A, and controller B initiates digital independent to controller A, is referred to as input and output reading
(IORead).Wherein, the input/output commands request, which can be encapsulated in any one message, sends.
S402, the object machine are asked according to the input/output commands received, are sent to the starter long-range
Data packet is written in immediate data access first.
S403, the starter receive remote direct data access and are written after data packet first, to the object machine
Send the remote direct data access corresponding confirmation message of write-in data packet first.
S404, the object machine receive the remote direct data access that the starter is sent and data packet pair are written first
After the confirmation message answered, the intermediate write-in data packet of remote direct data access is sent to the starter.
After S405, the starter receive the intermediate write-in data packet of remote direct data access, to the object machine
Send the corresponding confirmation message of the intermediate write-in data packet of remote direct data access.
S406, the object machine receive the intermediate write-in data packet pair of remote direct data access that the starter is sent
After the confirmation message answered, remote first message is sent to the starter, the first message includes that remote direct data is deposited
It takes and is ultimately written data packet and input/output commands response, wherein the input/output commands response is described for responding
The IO Command request that starter is sent, inform described in the starter IO Command request it is processed at.
After S407, the starter receive the first message that object machine is sent, sends first to the object machine and confirm
Message, wherein first confirmation message is for informing that the object machine has received the first message.
By the above method, the object machine to starter send write-in data packet first and intermediate write-in data packet it
Afterwards, it is sent to the starter and carries remote direct data access and be ultimately written what data packet and input/output commands responded
First message, by the way that remote direct data access is ultimately written data packet and input/output commands response same
It is sent in message, it is possible to reduce the process interface number of data memory transfer, when shortening the processing procedure of data memory transfer
Prolong.
In a kind of possible mode, the intermediate write-in data packet of remote direct data access and the first message it
Between there may also be other, and data packet is written, the quantity the application for the data packet that object machine is sent to starter do not limit,
It wants to carry the last one write-in data packet in the last one data packet that object machine sends to starter and carries input/output again
Command response.
In a kind of possible mode, starter sends input/output commands request and starts (i.e. IO Read start), arrives
Starter receives input/output commands response and terminates (i.e. IO Read Complete (completion)), and it is latent to be known as an IO
The volt phase (latency) indicates the full clock cycle executed needed for an instruction.
In one possible implementation, immediate (immediate is carried in the first message involved in step 406
Date), in the prior art, it is 4 bytes that remote direct data access, which is ultimately written the carry-on immediate of data packet, as follows
Shown in table 1, operation code (opcode) type of immediate is 01001, specially RMDA WRITE LAST with
Immediate also needs to send input/output commands due to sending while remote direct data access is ultimately written data packet
Response, therefore 4 byte in the prior art can not complete storage input/output commands response, therefore, the application passes through to immediately
Number region is extended, and as shown in table 2 below, in immediate region after expansion, input/output commands response, which can occupy, to remove
Arbitrary fields other than first byte, the application do not limit, and the first byte is used to store the length (immediate of immediate
Length), the byte number after extension is N, and N is the positive integer more than 4.The row of Tables 1 and 2 indicates that digit (bits), row indicate
Byte number (bytes).
Table 1
Table 2
In the prior art, the message of write-in data packet among data packet and each RDMA is written in generally carrying RDMA first
Format can as shown in Figure 5 the upper surface of RoCE message formats, i.e., traditional RoCE message formats, RDMA be written first data packet with
Write-in data packet, which can be carried in IB Payload, among each RDMA sends, and traditional RoCE message formats include immediately
Number region (regions IB GRH).In embodiments of the present invention, the access of carrying remote direct data is ultimately written the message of data packet
Format is readily modified as the update RoCE message formats below shown in fig. 5, i.e. the message of RoCEv2 formats can be used as the present invention
The above-mentioned first message referred to of embodiment, wherein being extended to the regions IB GRH, IP Header continue in domain to carry data packet
The information such as IP address, UDP Header are the immediate region after extension, can be used for carrying input/output commands response,
Other fields of RoCEv2 are identical as the effect of other fields of RoCE messages in the prior art, no longer excessively repeat herein.
The unlimited process for determining digital independent of the embodiment of the present application, data writing process in the prior art can also use this
The data read process that application proposes is replaced, for example, the process that controller B is written to controller A could alternatively be control
The process that device A is read from controller B.
Based on inventive concept same as embodiment of the method, present invention also provides a kind of starter schematic diagrames, such as Fig. 6 institutes
Show, including transmission unit 601, for sending input/output commands request to object machine, the input/output commands request is used
In the write-in data for indicating that the starter needs obtain；Receiving unit 602, for receiving the object machine according to described defeated
Data packet and the intermediate write-in of remote direct data access is written in the remote direct data access for entering/exporting command request transmission first
After data packet, the first message that the object machine is sent is received, the first message includes that remote direct data accesses most
Data packet and input/output commands response are written afterwards, wherein the input/output commands response is for responding the startup
The IO Command request that device is sent, inform described in the starter IO Command request it is processed at.
In one possible implementation, the transmission unit 601 is additionally operable to：First is sent to the object machine to confirm
Message, wherein first confirmation message is for informing that the object machine has received the first message.
Based on inventive concept same as embodiment of the method, present invention also provides a kind of object machine schematic diagrames, such as Fig. 7 institutes
Show, including receiving unit 701, the input/output commands request for receiving starter transmission, the input/output commands
Request is used to indicate the starter and needs the write-in data obtained；Transmission unit 702, for being ordered according to the input/output
It enables asking to send to the starter and be write among remote direct data access write-in data packet first and remote direct data access
After entering data packet, first message is sent to the starter, the first message includes that remote direct data access is last
Data packet and input/output commands response is written, wherein the input/output commands response is for responding the starter
The IO Command of transmission is asked, inform IO Command request described in the starter it is processed at.
In one possible implementation, the receiving unit 701 is additionally operable to：Receive that the object machine sends the
One confirmation message, wherein first confirmation message is for informing that the object machine has received the first message.
It is schematical, only a kind of division of logic function to the division of module in the embodiment of the present application, it is practical to realize
When there may be another division manner, in addition, each function module in each embodiment of the application can be integrated at one
Manage device in, can also be to physically exist alone, can also two or more modules be integrated in a module.It is above-mentioned integrated
Module both may be used hardware form realize, can also be realized in the form of software function module.
Wherein, when the form realization of hardware had both may be used in integrated module, digital independent device as shown in Figure 8, institute
State that digital independent device is object machine or is starter, object machine and starter may include processor 801, can also include receiving
Device 804 is sent out, the hardware of above-mentioned receiving unit 602 or 701, transmission unit 601 or 702, corresponding entity can be transceiver
804.Processor 801 can be a central processing module (English：Central processing unit, abbreviation CPU), or
Person is digital signal processing module etc..The object machine or starter further include：Memory 802, for storing the execution of processor 801
Program.Memory 802 can be nonvolatile memory, such as hard disk (English：Hard disk drive, abbreviation：HDD) or
Solid state disk (English：Solid-state drive, abbreviation：SSD) etc., it can also be volatile memory (English：
Volatile memory), such as random access memory (English：Random-access memory, abbreviation：RAM).Storage
Device 802 can be used for the desired program code of carrying or storage with instruction or data structure form and can be by computer
Any other medium of access, but not limited to this.
Processor 801 is used to execute the program code of the storage of memory 802, specifically calls and is stored in the memory 802
Program instruction.
The specific connection medium between above-mentioned processor 801 and memory 802 is not limited in the embodiment of the present application.This Shen
Please embodiment connected in fig. 8 by bus 803 between processor 801 and memory 802, bus is in the figure 7 with thick line table
Show, the connection type between other components, is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into ground
Location bus, data/address bus, controlling bus etc..For ease of indicating, only indicated with a thick line in Fig. 8, it is not intended that only one
Root bus or a type of bus.
It should be understood by those skilled in the art that, embodiments herein can be provided 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 application
Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application be with reference to according to the present processes, equipment (system) and computer program product flow chart and/or
Block diagram describes.It should be understood that each flow that can be realized by computer program instructions in flowchart and/or the block diagram and/or
The combination of flow and/or box in box and flowchart and/or the block diagram.These computer program instructions can be provided to arrive
All-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one
Machine so that the instruction executed by computer or the processor of other programmable data processing devices generates flowing
The device for the function of being specified in one flow of journey figure or multiple flows and/or one box of block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of 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 count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application
God and range.In this way, if these modifications and variations of the application belong to the range of the application claim and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (15)
1. a kind of method of digital independent, which is characterized in that the method includes：
Starter sends input/output commands request to object machine, and the input/output commands request is used to indicate the startup
Device needs the write-in data obtained；
The starter receives the object machine and is accessed according to the remote direct data that input/output commands request is sent
It is written first after data packet and the intermediate write-in data packet of remote direct data access, receives the object machine is sent first and disappear
Breath, the first message include that remote direct data access is ultimately written data packet and input/output commands response,
In, the input/output commands response informs the startup for responding the IO Command request that the starter is sent
Described in device IO Command request it is processed at.
2. the method as described in claim 1, which is characterized in that after receiving the first message that object machine is sent, this method is also
Including：
The starter sends the first confirmation message to the object machine, wherein first confirmation message is described for informing
Object machine has received the first message.
3. the method as described in claim 1, which is characterized in that the input/output commands response is carried to disappear described first
In the immediate region of breath.
4. a kind of method of digital independent, which is characterized in that the method includes：
Object machine receives the input/output commands request of starter transmission, and the input/output commands request is used to indicate institute
It states starter and needs the write-in data obtained；
The object machine asks to write first to starter transmission remote direct data access according to the input/output commands
After entering data packet and the intermediate write-in data packet of remote direct data access, first message is sent to the starter, described the
One message includes that remote direct data access is ultimately written data packet and input/output commands response, wherein described defeated
Enter/export command response for responding the IO Command request that the starter is sent, informs defeated described in the starter
Enter to export command request it is processed at.
5. method as claimed in claim 4, which is characterized in that the object machine to the starter send first message it
Afterwards, this method further includes：
The starter receives the first confirmation message that the object machine is sent, wherein first confirmation message is for accusing
Know that the object machine has received the first message.
6. method as claimed in claim 4, which is characterized in that the input/output commands response is carried to disappear described first
In the immediate region of breath.
7. a kind of starter, which is characterized in that including：
Transmission unit, for sending input/output commands request to object machine, the input/output commands request is used to indicate
The starter needs the write-in data obtained；
Receiving unit, the remote direct data sent according to input/output commands request for receiving the object machine
Access is written first after data packet and the intermediate write-in data packet of remote direct data access, receive that the object machine sends the
One message, the first message include that remote direct data access is ultimately written data packet and input/output commands response,
Wherein, the input/output commands response informs described open for responding the IO Command request that the starter is sent
IO Command request described in dynamic device it is processed at.
8. starter as claimed in claim 7, which is characterized in that the transmission unit is additionally operable to：
After receiving the first message that object machine is sent, the first confirmation message is sent to the object machine, wherein described first really
Message is recognized for informing that the object machine has received the first message.
9. starter as claimed in claim 7, which is characterized in that the input/output commands response is carried described first
In immediate region in message.
10. a kind of object machine, which is characterized in that the object machine includes：
Receiving unit, the input/output commands request for receiving starter transmission, the input/output commands request are used
In the write-in data for indicating that the starter needs obtain；
Transmission unit sends remote direct data access head for being asked according to the input/output commands to the starter
It is first written after data packet and the intermediate write-in data packet of remote direct data access, first message, institute is sent to the starter
It includes that remote direct data access is ultimately written data packet and input/output commands response to state first message, wherein described
Input/output commands response is informed for responding the IO Command request that the starter is sent described in the starter
IO Command request it is processed at.
11. object machine as claimed in claim 10, which is characterized in that the receiving unit is additionally operable to：
After sending first message to the starter, the first confirmation message that the object machine is sent is received, wherein described
First confirmation message is for informing that the object machine has received the first message.
12. object machine as claimed in claim 10, which is characterized in that input/output commands response is carried described the
In immediate region in one message.
13. a kind of equipment, which is characterized in that including processor, memory and transceiver,
The memory, is stored with software program；
The processor receives and dispatches number for calling and executing the software program stored in the memory by the transceiver
According to realizing such as method according to any one of claims 1 to 6.
14. a kind of computer-readable medium, which is characterized in that the computer-readable medium storage has computer instruction, works as institute
Instruction is stated when running on computers so that computer executes such as method according to any one of claims 1 to 6.
15. a kind of chip, which is characterized in that the chip is connected with memory, is deposited for reading and executing in the memory
The software program of storage, to realize such as claim 1 to 6 any one of them method.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888827A (en) * | 2018-09-10 | 2020-03-17 | 华为技术有限公司 | Data transmission method, device, equipment and storage medium |
| CN111400213A (en) * | 2019-09-29 | 2020-07-10 | 杭州海康威视系统技术有限公司 | Method, device and system for transmitting data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227778A (en) * | 2013-03-26 | 2013-07-31 | 华为技术有限公司 | Method, device and system for accessing memory |
| CN103645994A (en) * | 2013-11-05 | 2014-03-19 | 华为技术有限公司 | Data processing method and device |
| US20160226951A1 (en) * | 2011-06-29 | 2016-08-04 | Microsoft Technology Licensing, Llc | Transporting operations of arbitrary size over remote direct memory access |
| CN105893323A (en) * | 2016-05-23 | 2016-08-24 | 华为技术有限公司 | Data reading method and data reading equipment |
-
2017
- 2017-12-29 CN CN201711482453.2A patent/CN108319428A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160226951A1 (en) * | 2011-06-29 | 2016-08-04 | Microsoft Technology Licensing, Llc | Transporting operations of arbitrary size over remote direct memory access |
| CN103227778A (en) * | 2013-03-26 | 2013-07-31 | 华为技术有限公司 | Method, device and system for accessing memory |
| CN103645994A (en) * | 2013-11-05 | 2014-03-19 | 华为技术有限公司 | Data processing method and device |
| CN105893323A (en) * | 2016-05-23 | 2016-08-24 | 华为技术有限公司 | Data reading method and data reading equipment |
Non-Patent Citations (1)
| Title |
|---|
| 张琳 等: "《网络组建、管理与安全》", 31 December 2000 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888827A (en) * | 2018-09-10 | 2020-03-17 | 华为技术有限公司 | Data transmission method, device, equipment and storage medium |
| CN110888827B (en) * | 2018-09-10 | 2021-04-09 | 华为技术有限公司 | Data transmission method, device, equipment and storage medium |
| CN111400213A (en) * | 2019-09-29 | 2020-07-10 | 杭州海康威视系统技术有限公司 | Method, device and system for transmitting data |
| CN111400213B (en) * | 2019-09-29 | 2022-02-18 | 杭州海康威视系统技术有限公司 | Method, device and system for transmitting data |
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