CN109597577A - A kind of method, system and relevant apparatus handling NVME agreement read write command - Google Patents
A kind of method, system and relevant apparatus handling NVME agreement read write command Download PDFInfo
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- 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
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- 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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- 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
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Abstract
This application provides a kind of methods for handling NVME agreement read write command, comprising: the read write command sent to the host received parses, and obtains the corresponding address of data block of preset quantity in host；According to the quantity of target CPU in SSD, processing is grouped to the corresponding address of each data block, obtains group of addresses corresponding with the quantity of target CPU；According to the ID of each target CPU sequence, each group of addresses is successively sent to corresponding target CPU；The corresponding data block of each group of addresses is read and write into corresponding target CPU.As it can be seen that accelerating read or write speed the method achieve by multiple CPU of the data block concurrent reading and writing in host to SSD, improving work efficiency.The application also provides a kind of system, solid state hard disk and computer readable storage medium for handling NVME agreement read write command, all has above-mentioned beneficial effect.
Description
Technical field
This application involves storage equipment technical field, in particular to a kind of method for handling NVME agreement read write command is
System, solid state hard disk and computer readable storage medium.
Background technique
In field of storage, solid state hard disk often needs to carry out the read-write operation of data block.In the related technology, host will meet
The read write command of NVME agreement is handed down to SSD and obtains each data block to be read and write after SSD parses read write command and respectively correspond
Address, finally each data block is successively read and write in into SSD CPU according to address above mentioned.But it will be in host
Data block is successively read and write in into SSD CPU, causes read or write speed slow, reduces working efficiency.
Therefore, how by multiple CPU of the data block concurrent reading and writing in host to SSD, accelerate read or write speed, improve work
It is those skilled in the art's technical issues that need to address as efficiency.
Summary of the invention
The purpose of the application is to provide a kind of method, system, solid state hard disk and calculating for handling NVME agreement read write command
Machine readable storage medium storing program for executing can accelerate in multiple CPU of the data block concurrent reading and writing in host to SSD read or write speed, improve
Working efficiency.
In order to solve the above technical problems, the application provides a kind of method for handling NVME agreement read write command, comprising:
The read write command sent to the host received parses, and obtains the data block point of preset quantity in the host
Not corresponding address；
According to the quantity of target CPU in SSD, processing is grouped to the corresponding address of each data block, obtain with
The corresponding group of addresses of the quantity of the target CPU；
According to the ID of each target CPU sequence, each group of addresses is successively sent to corresponding target CPU；
The corresponding data block of each group of addresses is read and write into corresponding target CPU.
Preferably, the quantity according to target CPU in SSD is grouped the corresponding address of each data block
Processing, obtains group of addresses corresponding with the quantity of the target CPU, comprising:
The corresponding address of each data block is ranked up, the corresponding integer serial number in each address is obtained；
Using the quantity of the target CPU, modulo operation is carried out to each integer serial number, is obtained each described
The corresponding mould in address；
According to the value type of the mould, each address is grouped, obtains the number with the target CPU
Measure corresponding group of addresses.
Preferably, the ID sequence according to each target CPU, each group of addresses is successively sent to corresponding
Target CPU, comprising:
According to the ID of each target CPU sequence, successively establish between each target CPU and the group of addresses
Mapping relations；
According to the mapping relations, each group of addresses is successively sent to corresponding target CPU.
It is preferably, described to read and write the corresponding data block of each group of addresses into corresponding target CPU, comprising:
Receive the response message that each target CPU is sent；
According to the response message, the corresponding data block of each group of addresses is read and write into corresponding target CPU.
The application also provides a kind of system for handling NVME agreement read write command, comprising:
Read write command parsing module, the read write command for sending to the host received parse, and obtain the master
The corresponding address of the data block of preset quantity in machine；
Address packets module, for the quantity according to target CPU in SSD, to the corresponding address of each data block into
Row packet transaction obtains group of addresses corresponding with the quantity of the target CPU；
Group of addresses sending module successively sends each group of addresses for the ID sequence according to each target CPU
To corresponding target CPU；
Data block module for reading and writing, for reading and writing the corresponding data block of each group of addresses into corresponding target CPU.
Preferably, the address packets module, comprising:
Address sort unit obtains each address for being ranked up to the corresponding address of each data block
Corresponding integer serial number；
Modulo operation unit carries out modulus to each integer serial number for the quantity using the target CPU
Operation obtains the corresponding mould in each address；
Each address is grouped by address packets unit for the value type according to the mould, is obtained and institute
State the corresponding group of addresses of the quantity of target CPU.
Preferably, the group of addresses sending module, comprising:
Mapping relations establish unit, for the ID sequence according to each target CPU, successively establish each target
Mapping relations between CPU and the group of addresses；
Group of addresses transmission unit, for each group of addresses being successively sent to corresponding according to the mapping relations
Target CPU.
Preferably, the data block module for reading and writing, comprising:
Response message receiving unit, the response message sent for receiving each target CPU；
Data block read-write cell will the corresponding data block read-write of each group of addresses for according to the response message
To in corresponding target CPU.
The application also provides a kind of solid state hard disk, comprising:
Memory and processor；Wherein, the memory is for storing computer program, and the processor is for executing institute
The step of method of processing NVME agreement read write command described above is realized when stating computer program.
The application also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has computer
Program, the computer program realize the step of the method for processing NVME agreement read write command described above when being executed by processor
Suddenly.
The method of a kind of processing NVME agreement read write command provided herein, comprising: the host received is sent
Read write command parsed, obtain the corresponding address of data block of preset quantity in the host；According to target in SSD
The quantity of CPU is grouped processing to the corresponding address of each data block, obtains the quantity with the target CPU
Corresponding group of addresses；According to the ID of each target CPU sequence, each group of addresses is successively sent to corresponding target
CPU；The corresponding data block of each group of addresses is read and write into corresponding target CPU.
The read write command that this method before this sent host parses, and obtains the data block difference of preset quantity in host
Corresponding address is grouped processing to the corresponding address of each data block then according to the quantity of target CPU in SSD,
Group of addresses corresponding with the quantity of the target CPU is obtained, further according to the ID sequence of each target CPU, by each institute
It states group of addresses and is successively sent to corresponding target CPU, finally read and write the corresponding data block of each group of addresses to corresponding
In target CPU.As it can be seen that the corresponding address of each diagnostic data block is grouped by this method, it is concurrent to obtain multiple group of addresses
It send to corresponding target CPU, and then realizes in multiple CPU of the data block concurrent reading and writing in host to SSD, accelerate reading
Writing rate improves work efficiency.The application also provides a kind of system, solid state hard disk and meter for handling NVME agreement read write command
Calculation machine readable storage medium storing program for executing, all has above-mentioned beneficial effect, details are not described herein.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart for the method for handling NVME agreement read write command provided by the embodiment of the present application；
Fig. 2 is a kind of structural block diagram for the system for handling NVME agreement read write command provided by the embodiment of the present application.
Specific embodiment
The core of the application is to provide a kind of method for handling NVME agreement read write command, can be by the data block in host
Concurrent reading and writing accelerates read or write speed into multiple CPU of SSD, improves working efficiency.Another core of the application is to provide one kind
Handle system, solid state hard disk and the computer readable storage medium of NVME agreement read write command.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
In field of storage, solid state hard disk often needs to carry out the read-write operation of data block.In the related technology, host will meet
The read write command of NVME agreement is handed down to SSD and obtains each data block to be read and write after SSD parses read write command and respectively correspond
Address, finally each data block is successively read and write in into SSD CPU according to address above mentioned.But it will be in host
Data block is successively read and write in into SSD CPU, causes read or write speed slow, reduces working efficiency.The embodiment of the present application energy
It is enough to accelerate read or write speed in multiple CPU of the data block concurrent reading and writing in host to SSD, improve working efficiency.Please specifically it join
Fig. 1 is examined, Fig. 1 is a kind of flow chart for the method for handling NVME agreement read write command, the processing provided by the embodiment of the present application
The method of NVME agreement read write command specifically includes:
S101, the read write command sent to the host received parse, and obtain the data block of preset quantity in host
Corresponding address；
Solid state hard disk is connected with host in the embodiment of the present application, can carry out the transmission of data.Firstly, to the master received
The read write command that machine is sent is parsed, and the corresponding address of data block of preset quantity in host is obtained.The number of data block
Amount be it is preset, how much specific value is not limited thereto, and should be made according to the actual situation by those skilled in the art corresponding
Setting.Each data block corresponds to an address, which generally includes the physical address and logical address of data block.Here,
The mode parsed to read write command is also not especially limited, but need to guarantee that the result of parsing is preset quantity in host
The corresponding address of data block.
S102, according to the quantity of target CPU in SSD, processing is grouped to the corresponding address of each data block, obtain with
The corresponding group of addresses of the quantity of target CPU；
The embodiment of the present application is in obtaining host behind the corresponding address of the data block of preset quantity, according to mesh in SSD
The quantity for marking CPU, is grouped processing to the corresponding address of each data block, obtains address corresponding with the quantity of target CPU
Group.Quantity of target CPU in SSD is not especially limited at this, should be made according to the actual situation by those skilled in the art
Corresponding setting.By obtaining group of addresses corresponding with the quantity of target CPU above it is found that the quantity of group of addresses is with target CPU's
There is mapping relations between quantity, and specially which kind of mapping relations is not limited thereto, should by those skilled in the art according to
Actual conditions make corresponding setting, such as can be the corresponding group of addresses of a target CPU, can also be a target CPU
Corresponding multiple group of addresses.Further, since the quantity of target CPU is not especially limited, therefore the quantity of group of addresses is herein not yet
Make specific restriction, quantity of the quantity depending on target CPU of group of addresses and the mapping relations between the quantity of target CPU.Example
Such as, if the corresponding group of addresses of a target CPU, the quantity of group of addresses and the quantity of target CPU are equal；If a target
CPU corresponds to two group of addresses, then the quantity of group of addresses is twice of the quantity of target CPU.
Further, for the quantity according to target CPU in SSD, place is grouped to the corresponding address of each data block
Reason, obtains the process of group of addresses corresponding with the quantity of target CPU, is not specifically limited herein, should be by those skilled in the art
Corresponding setting is made according to the actual situation, which generally includes: the corresponding address of each data block being ranked up, is obtained
The corresponding integer serial number in each address；Using the quantity of target CPU, modulo operation is carried out to each integer serial number, is obtained each
The corresponding mould in address；According to the value type of mould, each address is grouped, is obtained correspondingly with the quantity of target CPU
Location group.For example, it is assumed that the quantity of data block is 8, therefore the corresponding number of addresses of each data block is also 8, is carried out to 8 addresses
Sequence obtains the corresponding integer serial number in each address and is respectively as follows: 1,2,3,4,5,6,7,8；Assuming that the quantity of target CPU is 3, it is right
Above-mentioned integer serial number progress modulo operation obtains the corresponding mould in each address and is respectively as follows: 1,2,0,1,2,0,1,2；According to the number of mould
8 addresses can be divided into 3 group of addresses corresponding with the quantity of target CPU by Value Types (0,1,2), i.e. wrap in the first group of addresses
It include the corresponding address of serial number 1,4,7 in the second group of addresses containing serial number 3,6 corresponding addresses, in third group of addresses
Include the corresponding address of serial number 2,5,6.
S103, the ID sequence according to each target CPU, are successively sent to corresponding target CPU for each group of addresses；
For the embodiment of the present application after obtaining group of addresses corresponding with the quantity of target CPU, the ID according to each target CPU is suitable
Each group of addresses is successively sent to corresponding target CPU by sequence.Each target CPU has respective ID number in solid state hard disk
Code, each id number is ranked up according to preset sortord can obtain ID sequence.At this to the presentation of each id number
Form and sortord are not especially limited, and corresponding setting, example should be made according to the actual situation by those skilled in the art
If id number can be presented in the form of sequence number, can also be presented in the form of bar code, two dimensional code；Sortord can be by
Sequence from big to small is ranked up, and can also be ranked up by sequence from small to large.
Further, for the ID sequence according to each target CPU, each group of addresses is successively sent to corresponding target
The process of CPU, is also not especially limited herein, which generally includes: according to the ID of each target CPU sequence, successively establishing each
Mapping relations between target CPU and group of addresses；According to mapping relations, each group of addresses is successively sent to corresponding target
CPU.Wherein, it for the mapping relations between each target CPU and group of addresses, is not specifically limited herein, it should be by art technology
Personnel make corresponding setting according to the actual situation.For example, if the quantity of target CPU is 3, it can be by 3 target CPU according to ID
The sequence of number from small to large is ranked up, and then successively establishes one-to-one mapping relations with three above-mentioned group of addresses；
3 target CPU can also be ranked up according to the sequence of id number from big to small, then successively with three above-mentioned group of addresses
Establish one-to-one mapping relations.
S104, the corresponding data block of each group of addresses is read and write into corresponding target CPU.
The embodiment of the present application is corresponding by each group of addresses after each group of addresses is successively sent to corresponding target CPU
Data block read and write into corresponding target CPU.For reading and writing the corresponding data block of each group of addresses to corresponding target CPU
In process, be not specifically limited herein, corresponding setting, the process should be made according to the actual situation by those skilled in the art
It generally includes: receiving the response message that each target CPU is sent；Message according to response, by the corresponding data block of each group of addresses
Read-write is into corresponding target CPU.
The read write command that the embodiment of the present application before this sent host parses, and obtains the data of preset quantity in host
The corresponding address of block is grouped place to the corresponding address of each data block then according to the quantity of target CPU in SSD
Reason, obtains group of addresses corresponding with the quantity of target CPU, and further according to the ID sequence of each target CPU, each group of addresses is successively sent out
It send to corresponding target CPU, finally reads and writes the corresponding data block of each group of addresses into corresponding target CPU.As it can be seen that the party
The corresponding address of each diagnostic data block is grouped by method, is obtained multiple group of addresses and is sent to corresponding target CPU, into
And realizing in multiple CPU of the data block concurrent reading and writing in host to SSD, will accelerate read or write speed, improve work effect
Rate.
Below to a kind of system, solid state hard disk and calculating for handling NVME agreement read write command provided by the embodiments of the present application
Machine readable storage medium storing program for executing is introduced, system, solid state hard disk and the computer of processing NVME agreement read write command described below
Readable storage medium storing program for executing can correspond to each other reference with the method for process described above NVME agreement read write command.
Referring to FIG. 2, Fig. 2 is a kind of knot for the system for handling NVME agreement read write command provided by the embodiment of the present application
Structure block diagram；The system of processing NVME agreement read write command includes:
Read write command parsing module 201, the read write command for sending to the host received parse, and obtain host
The corresponding address of the data block of middle preset quantity；
Address packets module 202 carries out the corresponding address of each data block for the quantity according to target CPU in SSD
Packet transaction obtains group of addresses corresponding with the quantity of target CPU；
Each group of addresses is successively sent to pair for according to the ID of each target CPU sequence by group of addresses sending module 203
The target CPU answered；
Data block module for reading and writing 204, for reading and writing the corresponding data block of each group of addresses into corresponding target CPU.
Based on the above embodiment, address packets module 202 in the present embodiment, generally includes:
It is corresponding whole to obtain each address for being ranked up to the corresponding address of each data block for address sort unit
Number sequence number；
Modulo operation unit carries out modulo operation to each integer serial number for the quantity using target CPU, obtains each
The corresponding mould in a address；
Each address is grouped by address packets unit for the value type according to mould, is obtained with target CPU's
The corresponding group of addresses of quantity.
Based on the above embodiment, group of addresses sending module 203 in the present embodiment, generally includes:
Mapping relations establish unit, for the ID sequence according to each target CPU, successively establish each target CPU and group of addresses
Between mapping relations；
Group of addresses transmission unit, for according to mapping relations, each group of addresses to be successively sent to corresponding target CPU.
Based on the above embodiment, data block module for reading and writing 204 in the present embodiment, generally includes:
Response message receiving unit, the response message sent for receiving each target CPU；
Data block read-write cell reads and writes the corresponding data block of each group of addresses to corresponding for message according to response
In target CPU.
The application also provides a kind of solid state hard disk, comprising:
Memory and processor；Wherein, memory is for storing computer program, and processor is for executing computer program
The step of method of the processing NVME agreement read write command of the above-mentioned any embodiment of Shi Shixian.
The application also provides a kind of computer readable storage medium, and computer-readable recording medium storage has computer journey
Sequence realizes the step of the method for the processing NVME agreement read write command of above-mentioned any embodiment when computer program is executed by processor
Suddenly.
The computer readable storage medium may include: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For embodiment provide system and
Speech, since it is corresponding with the method that embodiment provides, so being described relatively simple, related place is referring to method part illustration
?.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to method, system, solid state hard disk and the meter of a kind of processing NVME agreement read write command provided herein
Calculation machine readable storage medium storing program for executing is described in detail.Specific case used herein to the principle and embodiment of the application into
Elaboration is gone, the description of the example is only used to help understand the method for the present application and its core ideas.It should be pointed out that pair
For those skilled in the art, under the premise of not departing from the application principle, the application can also be carried out
Some improvements and modifications, these improvement and modification are also fallen into the protection scope of the claim of this application.
Claims (10)
1. a kind of method for handling NVME agreement read write command characterized by comprising
The read write command sent to the host received parses, and the data block for obtaining preset quantity in the host is right respectively
The address answered；
According to the quantity of target CPU in SSD, processing is grouped to the corresponding address of each data block, obtain with it is described
The corresponding group of addresses of the quantity of target CPU；
According to the ID of each target CPU sequence, each group of addresses is successively sent to corresponding target CPU；
The corresponding data block of each group of addresses is read and write into corresponding target CPU.
2. the method according to claim 1, wherein the quantity according to target CPU in SSD, to each institute
It states the corresponding address of data block and is grouped processing, obtain group of addresses corresponding with the quantity of the target CPU, comprising:
The corresponding address of each data block is ranked up, the corresponding integer serial number in each address is obtained；
Using the quantity of the target CPU, modulo operation is carried out to each integer serial number, obtains each address
Corresponding mould；
According to the value type of the mould, each address is grouped, obtains the quantity pair with the target CPU
The group of addresses answered.
3., will be each the method according to claim 1, wherein the ID sequence according to each target CPU
The group of addresses is successively sent to corresponding target CPU, comprising:
According to the ID of each target CPU sequence, the mapping between each target CPU and the group of addresses is successively established
Relationship；
According to the mapping relations, each group of addresses is successively sent to corresponding target CPU.
4. the method according to claim 1, wherein described read and write the corresponding data block of each group of addresses
To in corresponding target CPU, comprising:
Receive the response message that each target CPU is sent；
According to the response message, the corresponding data block of each group of addresses is read and write into corresponding target CPU.
5. a kind of system for handling NVME agreement read write command characterized by comprising
Read write command parsing module, the read write command for sending to the host received are parsed, are obtained in the host
The corresponding address of the data block of preset quantity；
Address packets module divides the corresponding address of each data block for the quantity according to target CPU in SSD
Group processing, obtains group of addresses corresponding with the quantity of the target CPU；
Each group of addresses is successively sent to pair for according to the ID of each target CPU sequence by group of addresses sending module
The target CPU answered；
Data block module for reading and writing, for reading and writing the corresponding data block of each group of addresses into corresponding target CPU.
6. system according to claim 5, which is characterized in that the address packets module, comprising:
It is corresponding to obtain each address for being ranked up to the corresponding address of each data block for address sort unit
Integer serial number；
Modulo operation unit carries out modulus fortune to each integer serial number for the quantity using the target CPU
It calculates, obtains the corresponding mould in each address；
Each address is grouped by address packets unit for the value type according to the mould, is obtained and the mesh
Mark the corresponding group of addresses of the quantity of CPU.
7. system according to claim 5, which is characterized in that the group of addresses sending module, comprising:
Mapping relations establish unit, for the ID sequence according to each target CPU, successively establish each target CPU
With the mapping relations between the group of addresses；
Group of addresses transmission unit, for according to the mapping relations, each group of addresses to be successively sent to corresponding target
CPU。
8. system according to claim 5, which is characterized in that the data block module for reading and writing, comprising:
Response message receiving unit, the response message sent for receiving each target CPU；
Data block read-write cell is read and write the corresponding data block of each group of addresses to right for according to the response message
In the target CPU answered.
9. a kind of solid state hard disk characterized by comprising
Memory and processor；Wherein, the memory is for storing computer program, the processor by execute it is described based on
The step of method such as the described in any item processing NVME agreement read write commands of Claims 1-4 is realized when calculation machine program.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
Sequence is realized when the computer program is executed by processor such as the described in any item processing NVME agreement read-writes of Claims 1-4
The step of method of order.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110058819A (en) * | 2019-04-19 | 2019-07-26 | 深圳忆联信息系统有限公司 | Host Command treating method and apparatus based on variable cache administrative mechanism |
| CN111831226A (en) * | 2020-07-07 | 2020-10-27 | 山东华芯半导体有限公司 | Method for accelerating processing of autonomously output NVME protocol command |
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