CN110010167A - It is a kind of to improve method, apparatus, computer equipment and the storage medium for obtaining descriptor state - Google Patents
It is a kind of to improve method, apparatus, computer equipment and the storage medium for obtaining descriptor state Download PDFInfo
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- CN110010167A CN110010167A CN201910232383.8A CN201910232383A CN110010167A CN 110010167 A CN110010167 A CN 110010167A CN 201910232383 A CN201910232383 A CN 201910232383A CN 110010167 A CN110010167 A CN 110010167A
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- descriptor
- descriptor state
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a kind of method, apparatus, computer equipment and storage mediums for improving acquisition descriptor state；Wherein method includes: to judge whether Nandflash controller channel has new data information；If so, Nandflash controller descriptor state is stored in hardware BUFF；Hardware update read pointer and write pointer；Judge whether read pointer and write pointer are equal；If it is not, then hardware notification Nandflash controller obtains descriptor state；The descriptor state of acquisition is handled and discharges corresponding descriptor channel.The present invention is by the way that Nandflash controller descriptor state to be stored in hardware BUFF, hardware can actively trigger interrupt notification Nandflash controller and go to obtain descriptor state in hardware BUFF, so that the utilization rate in Nandflash controller channel is got higher, obtain descriptor state much sooner, independent of CPU to the cyclic query in each Nandflash controller channel, the efficiency of descriptor acquiring is substantially increased, and then improves the performance of solid state hard disk.
Description
Technical field
The present invention relates to solid state hard disk, a kind of more specifically improve obtains the method, apparatus of descriptor state, calculates
Machine equipment and storage medium.
Background technique
In SSD (solid state hard disk), descriptor state is obtained in time for showing the case where NAND completes descriptor operation
It takes descriptor state that can effectively improve the processing speed of NAND information, while can timely discharge the channel handled,
To improve the utilization rate in the channel NFC (Nandflash controller channel).
Solid state hard disk obtains the schematic diagram of descriptor status inquiry as shown in Figure 1, looking into SSD using circulation at present
The mode for asking descriptor state in each channel NFC goes to obtain descriptor state.Before descriptor state processing is not completed,
The channel NFC can be occupied always, only when descriptor state is acquired, can just discharge the channel, then inquire next channel
Middle descriptor state.Specific querying flow is as shown in Fig. 2, judge whether the channel NFC has new information；The each channel of cyclic query
Interior descriptor state；If descriptor state is to complete, respective handling is carried out to descriptor state；If descriptor state one
It is straight not complete, it is more than the waiting time, then carries out error handle.Above-mentioned execution method can CPU take turns continuous query always each to lead to
Road, while wasting CPU, each channel cannot insert next descriptor before descriptor is not completed, and retouch when in other channel
Stating can not be handled when symbol is preferential to be completed in time, to obtain, descriptor state velocity is slow, and descriptor acquiring low efficiency, NFC leads to
Road utilization rate is low.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide it is a kind of improve obtain descriptor state method,
Device, computer equipment and storage medium.
To achieve the above object, the invention adopts the following technical scheme: a kind of improve the method for obtaining descriptor state, institute
The method of stating includes:
Judge whether Nandflash controller channel has new data information；
If so, Nandflash controller descriptor state is stored in hardware BUFF；
Hardware update read pointer and write pointer；
Judge whether read pointer and write pointer are equal；
If it is not, then hardware notification Nandflash controller obtains descriptor state；
The descriptor state of acquisition is handled and discharges corresponding descriptor channel.
Its further technical solution are as follows: it is described to judge read pointer and the whether equal step of write pointer, it specifically includes following
Step:
Obtain the value of read pointer and write pointer；
The value of read pointer is compared with the value of write pointer.
Its further technical solution are as follows: after the step of value by read pointer is compared with the value of write pointer, packet
Include following steps:
Calculate the difference of read pointer and write pointer；
The quantity of the descriptor state obtained is determined according to difference.
It is a kind of to improve the device for obtaining descriptor state, including the first judging unit, storage unit, updating unit, second
Judging unit, notification unit and releasing unit；
First judging unit, for judging whether Nandflash controller channel has new data information；
The storage unit, for Nandflash controller descriptor state to be stored in hardware BUFF；
The updating unit is used for hardware update read pointer and write pointer；
The second judgment unit, for judging whether read pointer and write pointer are equal；
The notification unit obtains descriptor state for hardware notification Nandflash controller；
The releasing unit, for being handled the descriptor state of acquisition and discharging corresponding descriptor channel.
Its further technical solution are as follows: the second judgment unit includes obtaining module and comparison module；
The acquisition module, for obtaining the value of read pointer and write pointer；
The comparison module, for the value of read pointer to be compared with the value of write pointer.
Its further technical solution are as follows: the second judgment unit further includes computing module and determination module；
The computing module, for calculating the difference of read pointer and write pointer；
The determination module, for determining the quantity of the descriptor state obtained according to difference.
A kind of computer equipment, including memory, processor and be stored on the memory and can be in the processing
The computer program run on device, the processor realize that above-mentioned raising such as obtains descriptor when executing the computer program
The method and step of state.
A kind of storage medium, the storage medium are stored with computer program, and the computer program includes program instruction,
When described program instruction is executed by processor, so that the processor executes the method for obtaining descriptor state such as above-mentioned raising
Step.
Compared with the prior art, the invention has the advantages that: a kind of improve provided by the invention obtains descriptor state
Method, by the way that Nandflash controller descriptor state to be stored in hardware BUFF, hardware can actively trigger interrupt notification
Nandflash controller goes to obtain descriptor state in hardware BUFF, so that the utilization rate in Nandflash controller channel becomes
Height obtains descriptor state much sooner, independent of CPU to the cyclic query in each Nandflash controller channel, significantly
The efficiency of descriptor acquiring is improved, and then improves the performance of solid state hard disk.
The above description is only an overview of the technical scheme of the present invention, can in order to better understand technical measure
It is implemented in accordance with the contents of the specification, and in order to make above and other objects of the present invention, feature and advantage brighter
Show understandable, special below to lift preferred embodiment, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the schematic diagram of the prior art；
Fig. 2 is the flow chart of the prior art；
Fig. 3, which is that the present invention is a kind of, improves the schematic diagram for obtaining the method specific embodiment of descriptor state；
Fig. 4, which is that the present invention is a kind of, improves the flow chart one for obtaining the method specific embodiment of descriptor state；
Fig. 5, which is that the present invention is a kind of, improves the flowchart 2 for obtaining the method specific embodiment of descriptor state；
Fig. 6, which is that the present invention is a kind of, improves the structural schematic diagram one for obtaining the device specific embodiment of descriptor state；
Fig. 7, which is that the present invention is a kind of, improves the structural schematic diagram two for obtaining the device specific embodiment of descriptor state；
A kind of schematic block diagram of computer equipment specific embodiment of Fig. 8 present invention.
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into
One step introduction and explanation, but not limited to this.
It should be appreciated that herein, relational terms such as first and second and the like are used merely to an entity/behaviour
Work/object is distinguished with another entity/operation/object, without necessarily requiring or implying these entity/operation/objects
Between there are any actual relationship or orders.
It is also understood that the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the process, method, article or the system that include a series of elements not only include those elements, but also including not having
The other element being expressly recited, or further include for this process, method, article or the intrinsic element of system.Do not having
In the case where having more limitations, the element that is limited by sentence "including a ...", it is not excluded that include the element process,
There is also other identical elements in method, article or system.
As in Figure 3-5, the present invention provides a kind of method for improving and obtaining descriptor state, this method includes following step
It is rapid:
S10, judge whether Nandflash controller channel has new data information, if so, S20, then by Nandflash
Controller descriptor state is stored in hardware BUFF, if it is not, then repeating step S10；
S30, hardware update read pointer and write pointer；
S40, judge whether read pointer and write pointer are equal, if so, return step S30, if it is not, S50, then hardware notification
Nandflash controller obtains descriptor state；
S60, the descriptor state of acquisition is handled and discharges corresponding descriptor channel.
Specifically, descriptor state is to obtain descriptor shape in time for showing the case where NAND completes descriptor operation
State can effectively improve the processing speed of NAND information, at the same can timely discharge it is processed at Nandflash control
Device channel processed.
Further, step S40 specifically includes the following steps:
S401, the value for obtaining read pointer and write pointer；
S402, the value of read pointer is compared with the value of write pointer.
S403, the difference for calculating read pointer and write pointer；
S404, the quantity that the descriptor state obtained is determined according to difference.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Corresponding to the method that a kind of raising described in above-described embodiment obtains descriptor state, the present invention provides one kind to mention
Height obtains the device of descriptor state.As shown in Fig. 3,6,7, the present apparatus includes the first judging unit 1, storage unit 2, updates list
Member 3, second judgment unit 4, notification unit 5 and releasing unit 6；
First judging unit 1, for judging whether Nandflash controller channel has new data information；
Storage unit 2, for Nandflash controller descriptor state to be stored in hardware BUFF；
Updating unit 3 is used for hardware update read pointer and write pointer；
Second judgment unit 4, for judging whether read pointer and write pointer are equal；
Notification unit 5 obtains descriptor state for hardware notification Nandflash controller；
Releasing unit 6, for being handled the descriptor state of acquisition and discharging corresponding descriptor channel.
Specifically, descriptor state is to obtain descriptor shape in time for showing the case where NAND completes descriptor operation
State can effectively improve the processing speed of NAND information, at the same can timely discharge it is processed at Nandflash control
Device channel processed.
Further, second judgment unit 4 includes obtaining module 1 and comparison module 42, computing module 43 and determining
Module 44；
Module 41 is obtained, for obtaining the value of read pointer and write pointer；
Comparison module 42, for the value of read pointer to be compared with the value of write pointer.
Computing module 43, for calculating the difference of read pointer and write pointer；
Determination module 44, for determining the quantity of the descriptor state obtained according to difference.
As shown in figure 8, the present invention also provides a kind of computer equipment, including memory, processor and it is stored in
On reservoir and the computer program that can run on a processor, realized when processor executes computer program as above-mentioned raising obtains
Take the method and step of descriptor state.
The computer equipment 700 can be terminal or server.The computer equipment 700 includes passing through system bus 710
Processor 720, memory and the network interface 750 of connection, wherein memory may include 730 He of non-volatile memory medium
Built-in storage 740.
The non-volatile memory medium 730 can storage program area 731 and computer program 732.The computer program 732
It is performed, processor 720 may make to execute any one and improve the method for obtaining descriptor state.
The processor 720 supports the operation of entire computer equipment 700 for providing calculating and control ability.
The built-in storage 740 provides environment for the operation of the computer program 732 in non-volatile memory medium 730, should
When computer program 732 is executed by processor 720, processor 720 may make to execute any one and improve acquisition descriptor state
Method.
The network interface 750 such as sends the task dispatching of distribution for carrying out network communication.Those skilled in the art can manage
It solves, structure shown in Fig. 8, only the block diagram of part-structure relevant to application scheme, is not constituted to the application side
The restriction for the computer equipment 700 that case is applied thereon, specific computer equipment 700 may include more than as shown in the figure
Or less component, perhaps combine certain components or with different component layouts.Wherein, the processor 720 is for transporting
Row program code stored in memory, to perform the steps of
Judge whether Nandflash controller channel has new data information；
If so, Nandflash controller descriptor state is stored in hardware BUFF；
Hardware update read pointer and write pointer；
Judge whether read pointer and write pointer are equal；
If it is not, then hardware notification Nandflash controller obtains descriptor state；
The descriptor state of acquisition is handled and discharges corresponding descriptor channel.
It is further: it is described to judge read pointer and the whether equal step of write pointer, specifically includes the following steps:
Obtain the value of read pointer and write pointer；
The value of read pointer is compared with the value of write pointer.
It is further: after the step of value by read pointer is compared with the value of write pointer, comprising the following steps:
Calculate the difference of read pointer and write pointer；
The quantity of the descriptor state obtained is determined according to difference.
It should be appreciated that in the embodiment of the present application, processor 720 can be central processing unit (Central
Processing Unit, CPU), which can also be other general processors, digital signal processor (Digital
Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit,
ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic
Device, discrete gate or transistor logic, discrete hardware components etc..Wherein, general processor can be microprocessor or
Person's processor is also possible to any conventional processor etc..
It will be understood by those skilled in the art that 700 structure of computer equipment shown in Fig. 8 is not constituted and is set to computer
Standby 700 restriction may include perhaps combining certain components or different component cloth than illustrating more or fewer components
It sets.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention
Substantially all or part of the part that contributes to existing technology or the technical solution can be with software product in other words
Form embody, which is stored in a storage medium, including some instructions use so that one
Computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute this hair
The all or part of the steps of each embodiment the method in bright.And storage medium above-mentioned include: USB flash disk, it is mobile hard disk, read-only
Memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or
The various media that can store program code such as person's CD.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above-mentioned apparatus
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the module or unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with
In conjunction with or be desirably integrated into another device, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (8)
1. a kind of improve the method for obtaining descriptor state, which is characterized in that the described method includes:
Judge whether Nandflash controller channel has new data information；
If so, Nandflash controller descriptor state is stored in hardware BUFF；
Hardware update read pointer and write pointer；
Judge whether read pointer and write pointer are equal；
If it is not, then hardware notification Nandflash controller obtains descriptor state；
The descriptor state of acquisition is handled and discharges corresponding descriptor channel.
2. a kind of method for improving acquisition descriptor state according to claim 1, which is characterized in that the judgement reading refers to
Needle and the whether equal step of write pointer, specifically includes the following steps:
Obtain the value of read pointer and write pointer；
The value of read pointer is compared with the value of write pointer.
3. a kind of method for improving acquisition descriptor state according to claim 2, which is characterized in that described by read pointer
Value the step of being compared with the value of write pointer after, comprising the following steps:
Calculate the difference of read pointer and write pointer；
The quantity of the descriptor state obtained is determined according to difference.
4. a kind of improve the device for obtaining descriptor state, which is characterized in that including the first judging unit, storage unit, update
Unit, second judgment unit, notification unit and releasing unit；
First judging unit, for judging whether Nandflash controller channel has new data information；
The storage unit, for Nandflash controller descriptor state to be stored in hardware BUFF；
The updating unit is used for hardware update read pointer and write pointer；
The second judgment unit, for judging whether read pointer and write pointer are equal；
The notification unit obtains descriptor state for hardware notification Nandflash controller；
The releasing unit, for being handled the descriptor state of acquisition and discharging corresponding descriptor channel.
5. a kind of device for improving acquisition descriptor state according to claim 4, which is characterized in that second judgement
Unit includes obtaining module and comparison module；
The acquisition module, for obtaining the value of read pointer and write pointer；
The comparison module, for the value of read pointer to be compared with the value of write pointer.
6. a kind of device for improving acquisition descriptor state according to claim 5, which is characterized in that second judgement
Unit further includes computing module and determination module；
The computing module, for calculating the difference of read pointer and write pointer；
The determination module, for determining the quantity of the descriptor state obtained according to difference.
7. a kind of computer equipment, which is characterized in that including memory, processor and be stored on the memory and can be
The computer program run on the processor, the processor realize such as claims 1 to 3 when executing the computer program
Any one of described in raising obtain descriptor state method and step.
8. a kind of storage medium, which is characterized in that the storage medium is stored with computer program, and the computer program includes
Program instruction, when described program instruction is executed by processor, so that the processor executes such as claims 1 to 3 any one
The raising obtains the method and step of descriptor state.
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| CN201910232383.8A CN110010167A (en) | 2019-03-26 | 2019-03-26 | It is a kind of to improve method, apparatus, computer equipment and the storage medium for obtaining descriptor state |
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