CN105335308B - To access information treating method and apparatus, the system of storage device - Google Patents
To access information treating method and apparatus, the system of storage device Download PDFInfo
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- CN105335308B CN105335308B CN201410239181.3A CN201410239181A CN105335308B CN 105335308 B CN105335308 B CN 105335308B CN 201410239181 A CN201410239181 A CN 201410239181A CN 105335308 B CN105335308 B CN 105335308B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
Abstract
The present invention disclose a kind of access information treating method and apparatus, system to storage device, wherein, the virtual address that the processor of access equipment includes according to the access request that process is initiated, determining storage device identification corresponding with the virtual address；Access request message is generated, the access request message includes access address；According to the storage device identification, the processor for the storage device being directed toward to the storage device identification sends the access request message, so that the access address that the processor of the storage device includes according to the access request message, performs access request operation in the storage medium of access address direction.Improve the access performance of integrated storage device.
Description
Technical field
At computer memory technical field more particularly to a kind of access information to storage device
Manage method and apparatus, system.
Background technology
In the prior art, two kinds are mainly included to the access method of storage medium, first method is visited by kernel
Ask storage medium, Fig. 8 is the system architecture diagram of a kind of access method to storage medium that the prior art provides, as shown in Figure 8：
Virtual address is sent to memory management unit (Memory management unit, MMU) by core, and MMU inquiries turn
Query caching (Translation lookaside buffer, TLB) table is changed, it is found that there are no physics for the virtual address to be accessed
It is corresponding to it address.MMU sends out page faults to core, and core response is interrupted, and after protecting running environment, is absorbed in kernel, the object in kernel
It is the virtual address allocated physical address, and establish page table to manage Memory Allocation program (being located in operating system OS as shown in Figure 8),
Wherein, the correspondence between the virtual address of foundation and physical address is preserved in page table, page table is loaded into TLB tables, i.e.,
Refreshing TLB tables, kernel sends interrupt routine to core and completes, and core recovering process running environment sends virtual address to MMU again,
MMU inquires TLB tables, obtains the corresponding physical address of virtual address, and MMU is sent out comprising physical address access request to caching
(cache), cache sends access request to Memory Controller Hub, and Memory Controller Hub is to dynamic RAM ((Dynamic
Random Access Memory, DRAM) send access request, DRAM response access requests, if reading then by data from DRAM
Core is directly reached by Memory Controller Hub, cache.
Another method is to access storage by direct memory access (Direct memory access, DMA) mode to be situated between
Matter, Fig. 9 are the system architecture diagram for another access method to storage device that the prior art provides, as shown in Figure 9：
Processor sends to input and output (Input/Output, I/O) bus and orders, and I/O buses are sent commands to pair
The I/O ports answered, I/O interfaces take orders from I/O ports, and order is converted into disk command and is sent to disk control by I/O interfaces
Device processed, Magnetic Disk Controler send a command to DMA, and data are transmitted by dma operation rambus between disk and memory,
DMA completes data transmission, and message is returned to Magnetic Disk Controler, and message is sequentially transmitted to send out to processor and is interrupted, informs check figure
It is finished according to transmission.
However, in the first states method, since operating system performs physical memory distribution, trigger when lacking Physical Page
During page faults, processor is absorbed in kernel for a long time, and the environment that protect and resume operation before and after interrupting, expense are larger.Another
In a kind of method, since DRAM carries are in I/O buses, processor needs that DRAM data could be completed to memory by multi-layer path
Copy, DMA and processor compete rambus, and expense is larger.
Therefore, it is existing access UAS during, there are expense it is larger the problem of, reduce access performance.
Invention content
The embodiment of the present invention provides a kind of access information treating method and apparatus to storage device, existing to solve
During accessing UAS, there are memory overhead it is larger the problem of, the access performance of UAS can be improved.
In a first aspect, provide a kind of access information processing method to storage device, the storage device include it is a kind of with
On storage medium, including：
The virtual address that the storage device access request instruction that the processor of access equipment is initiated according to process includes, really
Fixed storage device identification corresponding with the virtual address；
Access request message is generated, the access request message includes access address；
According to the storage device identification, described in the processor transmission for the storage device being directed toward to the storage device identification
Access request message, so that the access address that the processor of the storage device includes according to the access request message,
Access request operation is performed in the storage medium that the access address is directed toward.
Optionally, the processor of access equipment includes virtually according to the storage device access request that process is initiated
Location determines storage device identification corresponding with the virtual address, including：
The virtual address that the processor of access equipment includes according to the access request that process is initiated, it is determined whether exist with
The corresponding physical address of the virtual address；
If there is no physical address corresponding with the virtual address, it is determined that storage corresponding with the virtual address is set
Standby mark；
If in the presence of physical address corresponding with the virtual address, the physical address is determined according to the physical address
The storage medium of direction according to the storage medium, determines the storage device identification for including the storage medium.
Optionally, if there is no physical address corresponding with the virtual address, the access request message of the generation
The access address included is virtual address, and the access request message includes first message attribute and process number；
If in the presence of physical address corresponding with the virtual address, visit that the access request message of the generation includes
Address is asked as physical address, and the access request message includes second message attribute.
Optionally, the storage device access request instruction that the processor of access equipment is initiated according to process includes virtual
Address determines storage device identification corresponding with the virtual address, including：
The processor of access equipment inquires segment table, and the virtual address and the storage device mark are preserved in the segment table
Correspondence between knowledge；
Storage device identification corresponding with the virtual address is obtained from the segment table.
Optionally it is determined that with the presence or absence of including before physical address corresponding with the virtual address：
Receive the virtual address and the physical address and the physics that the processor of the storage device is sent
Correspondence between the storage medium that address is directed toward.
Second aspect, provides a kind of access information processing method to storage device, the storage device include it is a kind of with
On storage medium, including：
The processor of storage device receives the access request message that the processor of access equipment is sent, and the access request disappears
Breath includes access address；
According to the access address, access request operation is performed in the storage medium being directed toward in the access address.
Optionally, first message attribute and process number are further included in the access request message, then according to the access
Location performs access request operation in the storage medium of access address direction, including：
The processor of storage device determines the access that the access request message includes according to the first message attribute
Address is virtual address；
According to the process number, progress information table corresponding with the process number is inquired, is determined and the virtual address pair
The physical address answered, the progress information table include the preset allocation strategy corresponding with the virtual address of operating system,
The allocation strategy includes the storage medium that physical address corresponding with the virtual address and the physical address are directed toward；
According to the determining physical address, access request behaviour is performed in the storage medium being directed toward in the physical address
Make.
Optionally, second message attribute is further included in the access request message, then according to the access address, described
Access request operation is performed in the storage medium that access address is directed toward, including：
The processor of storage device determines the access that the access request message includes according to the second message attribute
Address is physical address；
Access request operation is performed in the storage medium being directed toward in the physical address.
Optionally, according to the process number, progress information table corresponding with the process number is inquired, is determined and described virtual
After the corresponding physical address in address, including：
The processor of storage device establishes what the virtual address was directed toward with the physical address and the physical address
Correspondence between storage medium；
It will be corresponding between the virtual address and the storage medium that the physical address and the physical address are directed toward
Relationship is sent to the processor of the access equipment.
The third aspect, provides a kind of access information processing unit to storage device, the storage device include it is a kind of with
On storage medium, including：
Determining module, the virtual address that the storage device access request instruction for being initiated according to process includes, determines
Storage device identification corresponding with the virtual address；
Generation module, for generating access request message, the access request message includes access address；
Sending module for the storage device identification determined according to the determining module, refers to the storage device identification
To the processor of storage device send the access request message of generation module generation so that the processing of the storage device
The access address that device includes according to the access request message performs access in the storage medium of access address direction
Request operation.
Optionally, the determining module is specifically used for：
The virtual address that the access request initiated according to process includes, it is determined whether exist corresponding with the virtual address
Physical address；
If there is no physical address corresponding with the virtual address, it is determined that storage corresponding with the virtual address is set
Standby mark；
If in the presence of physical address corresponding with the virtual address, the physical address is determined according to the physical address
The storage medium of direction according to the storage medium, determines the storage device identification for including the storage medium.
Optionally, if there is no physical address corresponding with the virtual address, the access of the generation module generation
The access address that request message includes is virtual address, and the access request message includes first message attribute and process
Number；
If in the presence of physical address corresponding with the virtual address, in the access request message of the generation module generation
Including access address for physical address, and the access request message includes second message attribute.
Optionally, the determining module is specifically used for：Segment table is inquired, the virtual address and institute are preserved in the segment table
State the correspondence between storage device identification；Storage device mark corresponding with the virtual address is obtained from the segment table
Know.
Optionally, the device further includes：
Receiving module, for receiving the virtual address of the processor of storage device transmission and the physical address
And the correspondence between the storage medium of the physical address direction.
Fourth aspect, provides a kind of access information processing unit to storage device, the storage device include it is a kind of with
On storage medium, including：
Receiving module, for receiving the access request message of the processor of access equipment transmission, the access request message
Include access address；
Operation module, for according to the access address, access to be performed in the storage medium being directed toward in the access address
Request operation.
Optionally, first message attribute and process number are further included in the access request message, then the operation module tool
Body is used for：
According to the first message attribute, determine that the access address that the access request message includes is virtual address；
According to the process number, progress information table corresponding with the process number is inquired, is determined and the virtual address pair
The physical address answered, the progress information table include the preset allocation strategy corresponding with the virtual address of operating system,
The allocation strategy includes the storage medium that physical address corresponding with the virtual address and the physical address are directed toward；
According to the determining physical address, access request behaviour is performed in the storage medium being directed toward in the physical address
Make.
Optionally, second message attribute is further included in the access request message, then the operation module is specifically used for：Root
According to the second message attribute, determine that the access address that the access request message includes is physical address；And in the object
It manages and access request operation is performed in the storage medium that address is directed toward.
Optionally, the device further includes：
Module is established, for establishing the storage that the virtual address is directed toward with the physical address and the physical address
Correspondence between medium；
Sending module, the storage for the virtual address and the physical address and the physical address to be directed toward are situated between
Correspondence between matter is sent to the processor.
5th aspect, provides a kind of access information processing system to storage device, including access equipment and storage device,
The access equipment includes processor, and the storage device includes processor, and the storage device includes depositing for more than one
Storage media；
The access information to storage device that the processor of the access equipment includes described in the above-mentioned third aspect handles dress
It puts；
The access information to storage device that the processor of the storage device includes described in above-mentioned fourth aspect handles dress
It puts.
Using in the technical solution described in the embodiment of the present invention, the processor of access equipment is directly according to the visit of process initiation
It asks the virtual address that request includes, determines storage device identification corresponding with the virtual address；According to the storage device
Mark, the processor for the storage device being directed toward to the storage device identification send access request message, so that the storage is set
The access address that standby processor includes according to access request message performs in the storage medium of access address direction
Access request operates.There is no access equipment processor need for a long time be absorbed in kernel allocated physical address the problem of, reduce
The expense as caused by kernel distributes physical space；
Further, for outer storage mediums such as disks, the embodiment of the present invention does not need to enter kernel and by multilayer road
Diameter could complete the access request to the storage device comprising these storage mediums, and then there is no in DMA and processor competition
The situation of bus is deposited, access expense can also be reduced, improves the access performance of integrated storage device.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow diagram of the access information processing method to storage device that one embodiment of the invention provides；
Fig. 2 is the flow diagram of the access information processing method to storage device that another embodiment of the present invention provides；
Fig. 3 is the system architecture diagram of the access information processing method to storage device that one embodiment of the invention provides；
Fig. 4 is the system architecture diagram of the access information processing method to storage device that another embodiment of the present invention provides；
Fig. 5 is UAS provided in an embodiment of the present invention and message type Memory Controller Hub, the interface diagram of operating system；
Fig. 6 is the structure diagram of the access information processing unit to storage device that one embodiment of the invention provides；
Fig. 7 is the structure diagram of the access information processing unit to storage device that another embodiment of the present invention provides；
Fig. 8 is the system architecture diagram of a kind of access method to storage device that the prior art provides；
Fig. 9 is the system architecture diagram for another access method to storage device that the prior art provides.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The all other embodiments obtained under the premise of creation labour is not made, shall fall within the protection scope of the present invention.
Being integrated of storage device storage device (Unified Access Storage, UAS) in the embodiment of the present invention
Comprising processor and multi storage, and directly it is connected with rambus, therefore the processor of UAS can be accessed by instructing
Any storage medium in UAS (including disk).UAS can simplify the memory interface in storage system framework, improve storage rack
The scalability of structure, convenient for fully using novel storage medium.And the processor that UAS possesses, more abundant intelligence can be included
Can data management function, such as the management of physical space, management of data buffer storage etc..
The embodiment of the present invention provides a kind of access information processing method to storage device from access equipment side, including：
The virtual address that the processor of access equipment includes according to the storage device access request that process is initiated, determine with
The corresponding storage device identification of the virtual address；
Access request message is generated, the access request message includes access address；
According to the storage device identification, described in the processor transmission for the storage device being directed toward to the storage device identification
Access request message, so that the access address that the processor of the storage device includes according to the access request message,
Access request operation is performed in the storage medium that the access address is directed toward.
Therefore, the processor that above-mentioned implementation solves access equipment needs to be absorbed in kernel allocated physical address for a long time
The problem of, reduce the expense as caused by kernel distributes physical space；Further, for the outer storage mediums such as disk, this hair
Bright embodiment does not need to the visit for entering kernel and could being completed by multi-layer path to the storage device comprising these storage mediums
It asks request, then there is no the situation of DMA and processor competition rambus, access expense can also be reduced, improve one
Change the access performance of storage device.
Technical solutions according to the invention are described in detail below by way of attached drawing：
Fig. 1 is the flow diagram of the access information processing method to storage device that one embodiment of the invention provides, such as
Shown in Fig. 1, including：
101st, the storage device access request instruction that the processor of access equipment is initiated according to process is included virtually
Location, it is determined whether there is physical address corresponding with the virtual address；
For example, virtual address that the instruction of the processor of access equipment is initiated according to process access request includes and
And the process number of the process, inquire corresponding with process number TLB tables, determine to whether there is in TLB tables with it is described virtually
The corresponding physical address in address, there is no physical address corresponding with the virtual address then to perform step 102, if in the presence of with institute
It states the corresponding physical address of virtual address and then performs step 104.
Wherein, TLB tables are provided in the processor of access equipment, for example, when the processor of storage device has been
When the virtual address that the access request that the process is initiated includes is assigned with corresponding physical address, the processor of storage device can
With by the mapping relations between the virtual address and physical address and the physical address direction storage medium between pair
Should be related to the processor for being sent to access equipment so that the processor of access equipment in time by the virtual address and physical address it
Between mapping relations and the physical address be directed toward storage medium between correspondence be saved in it is corresponding with the process number
TLB tables in.
102nd, storage device identification corresponding with the virtual address is determined；
For example, before step 103, in the embodiment of the present invention, the processor of access equipment receives operating system hair
The segment table corresponding with the process number sent, wherein, the segment table include the operating system it is preset with it is described virtually
The corresponding storage device identification in location；Therefore, the processor of access equipment can inquire segment table corresponding with process number, determining and institute
State the corresponding storage device identification of virtual address.
103rd, access request message is generated, and according to the storage device identification, is directed toward to the storage device identification
The processor of storage device sends access request message；
Wherein, the access request message generated in step 103 includes access address, process number and first message category
Property, wherein, first message attribute is indicating that access address that access request message includes is the access request that process is initiated
In virtual address, and indicate the processor of the storage device according to the first message attribute, inquiry and the process number
Corresponding progress information table determines physical address corresponding with the virtual address；According to the determining physical address, in institute
The storage medium for stating physical address direction performs access request operation；Further, behaviour is further included in the access request message
It indicates, is operated to indicate that storage device performs corresponding access request according to the operation instruction.
Accordingly, the processor of storage device is according to the first message attribute, inquiry it is corresponding with the process number into
Journey information table obtains corresponding with virtual address allocation strategy, wherein, the allocation strategy include with it is described virtually
The storage medium that the corresponding physical address in location and the physical address are directed toward；According to the allocation strategy, it is situated between in the storage
Physical address corresponding with the virtual address is distributed in matter.Later, it is determined and the virtual address pair according to progress information table
The physical address answered；According to the determining physical address, performed in the storage medium corresponding with the operation instruction
Access request.
104th, access request message is generated, and according to the physical address, to the storage device for including the physical address
Processor send access request message；
Specifically, it is assumed that in step 101, void that the processor of access equipment includes according to the access request that process is initiated
Intend address and and the process process number, inquire corresponding with process number TLB tables, determine in TLB tables in the presence of with it is described
During the corresponding physical address of virtual address, it may be determined that the storage medium that the physical address is directed toward, and determine to deposit comprising described
The storage device identification of storage media；For this purpose, the storage medium that physical address is directed toward with it is preserved in the processing of access equipment
Correspondence between correspondence and storage medium and storage device identification comprising the storage medium.
At this point, the access request message of generation includes access address and second message attribute, wherein, second message attribute
To indicate access address that access request message includes for determined in step 101 it is corresponding with virtual address physically
Location, and the processor for indicating the storage device is situated between according to the second message attribute in the storage that the physical address is directed toward
Access request operation is performed in matter；Further, operation instruction is further included in the access request message, to indicate that storage is set
It is standby that corresponding access request operation is performed according to the operation instruction.
Accordingly, the processor of the storage device is directed toward according to the second message attribute in the physical address
Access request corresponding with the operation instruction is performed in storage medium.
The virtual address that the processor of the embodiment of the present invention includes according to the access request that process is initiated, it is determined whether deposit
In physical address corresponding with the virtual address；If there is no physical address corresponding with the virtual address, it is determined that with
The corresponding storage device identification of the virtual address；According to the storage device identification, it is directed toward to the storage device identification
Storage device sends access request message, so that the storage device is according to the first message attribute, inquiry and the process
Number corresponding progress information table determines physical address corresponding with the virtual address；According to the determining physical address,
Access request operation is performed in the storage medium that the physical address is directed toward.
Therefore, using in the access information processing method to storage device described in the embodiment of the present invention, when judging not
During in the presence of physical address corresponding with virtual address, the processor of access equipment does not need to be absorbed in kernel distribution for a long time physically
Location, and it is to determine storage device identification corresponding with the virtual address；According to the storage device identification, directly deposited to described
The access request message that the processor of the storage device transmission that storage device identification is directed toward includes virtual address, by storage device
It manages device and completes physical space distribution, it is possible to reduce the expense as caused by kernel distributes physical space；
Further, for outer storage mediums such as disks, the embodiment of the present invention does not need to enter kernel and by multilayer road
Diameter could complete the access request to including these storage medium storage devices, and then there is no DMA and processor to compete memory
The situation of bus can also reduce access expense, improve the access performance of integrated storage device.
The embodiment of the present invention provides a kind of access information processing method to storage device from storage device side, including：
The processor of storage device receives the access request message that the processor of access equipment is sent, and the access request disappears
Breath includes access address；
According to the access address, access request operation is performed in the storage medium being directed toward in the access address
Therefore, not there are problems that the processor of access equipment needs to be absorbed in kernel allocated physical address for a long time,
Reduce the expense as caused by kernel distributes physical space；Further, for the outer storage mediums such as disk, the embodiment of the present invention
It does not need to enter kernel and could complete the access request to the storage device comprising these storage mediums by multi-layer path, in
It is the situation there is no DMA and processor competition rambus, access expense can also be reduced, improve integrated storage device
Access performance.
The technical solution of the embodiment of the present invention is described in detail below by way of attached drawing：
Corresponding with embodiment illustrated in fig. 1, Fig. 2 is the access information to storage device that another embodiment of the present invention provides
The flow diagram of processing method, as shown in Fig. 2, including：
201st, the processor of storage device receives the access request message that the processor of access equipment is sent；
For example, the access request message described in the present embodiment includes access address, process number and first message category
Property；Or the access request message described in the present embodiment includes access address and second message attribute；
Wherein, first message attribute is to indicate access address that access request message includes as virtual address, and refers to
Show that the processor of the storage device according to the process number, inquires progress information table corresponding with the process number, determine and
The corresponding physical address of the virtual address according to the determining physical address, is situated between in the storage that the physical address is directed toward
Access request operation is performed in matter；
Wherein, second message attribute is to indicate access address that access request message includes as physical address, and refers to
Show that the processor of the storage device according to the second message attribute, performs in the storage medium being directed toward in the physical address
Access request operates.
Further, operation instruction is further included in the access request message described in the present embodiment, to indicate storage device
Corresponding access request operation is performed according to the operation instruction.
Optionally, include after step 201：
202nd, according to the first message attribute, inquire progress information table corresponding with the process number, it is determining with it is described
The corresponding physical address of virtual address；
For example, include before step 202：
The processor of storage device has been received by the progress information table corresponding with the process number of operating system transmission,
The progress information table includes the preset allocation strategy corresponding with the virtual address of the operating system；Wherein, it is described
Allocation strategy includes the storage medium that physical address corresponding with the virtual address and the physical address are directed toward.
For example, it is further included after step 202：
Mapping relations between the virtual address and the physical address can be saved in by the processor of storage device
In page table corresponding with the process number；Further, when the access that the processor of storage device receives processor transmission please
When seeking message, the process number that is included according to access request message inquires page table corresponding with the process number, it may be determined that with
The corresponding physical address of the virtual address；
The processor of storage device can also send the mapping relations between the virtual address and the physical address
To the processor of access equipment, so that the processor of access equipment is by the mapping between the virtual address and the physical address
Relationship is cached in conversion query caching TLB tables corresponding with the process number.
203rd, according to the determining physical address, access request behaviour is performed in the storage medium that the physical address is directed toward
Make.
For example, if operation instruction in above-mentioned access request message is write operation, storage device inquiry with it is described
The corresponding progress information table of process number, after determining physical address corresponding with the virtual address, according to the determining object
Address is managed, distribution physical address corresponding with the virtual address in the storage medium being directed toward in the physical address, and according to
The physical address of the distribution performs write operation in the storage medium.
If the operation instruction in above-mentioned access request message is read operation, storage device inquiry is corresponding with the process number
Progress information table, determine physical address corresponding with the virtual address after, according to the determining physical address, in institute
The storage medium for stating physical address direction performs read operation.
The storage device of the present embodiment includes more than one storage medium, for example, the storage device of the present embodiment
In preserve correspondence between the corresponding storage medium of physical address.
Optionally, it is further included after step 201：
204th, according to the second message attribute, access request behaviour is performed in the storage medium being directed toward in the physical address
Make.
For example, the operation instruction includes read operation or write operation, accordingly, is deposited what the physical address was directed toward
Access request corresponding with the operation instruction is performed in storage media to include：It is read in corresponding storage medium according to physical address
Take or be written data.
Therefore, using in the access information processing method to storage device described in the embodiment of the present invention, when judging not
During in the presence of physical address corresponding with virtual address, the processor of access equipment does not need to be absorbed in kernel distribution for a long time physically
Location, and it is to determine storage device identification corresponding with the virtual address；According to the storage device identification, directly deposited to described
The access request message that the processor of the storage device transmission that storage device identification is directed toward includes virtual address, by storage device
It manages device and completes physical space distribution, it is possible to reduce the expense as caused by kernel distributes physical space；
Accordingly, the processor of storage device receives the access request message that the processor of access equipment is sent, if institute
It states access request message and includes access address, process number and first message attribute；This is determined according to the first message attribute
Access address is virtual address, further inquiry progress information table corresponding with the process number, is determined and the virtual address
Corresponding physical address；According to the determining physical address, access is performed in the storage medium being directed toward in the physical address
Request operation；For outer storage mediums such as disks, the embodiment of the present invention does not need to be into kernel and complete by multi-layer path ability
The access request of these pairs of storage medium storage devices then competes the situation of rambus there is no DMA with processor,
Access expense can be reduced, improves the access performance of integrated storage device.
Below by way of the specific implementation of attached drawing the present invention will be described in detail embodiment：
Fig. 3 is the system architecture diagram of the access information processing method to storage device that one embodiment of the invention provides, such as
Shown in Fig. 3, processor connects multiple UAS equipment by rambus, each UAS equipment include multi storage (such as
DRAM, NVM, SSD, DISK) etc..Based on system architecture diagram shown in Fig. 3, in the embodiment of the present invention, to unallocated physical address
Integrated storage device access method realization process it is as follows：
1. the central processor CPU of access equipment sends the access request comprising virtual address to MMU；
Wherein, when CPU receives the access request including virtual address of process initiation, CPU can will include virtual
Address, process number access request be sent to MMU；Wherein, the operation instruction of process initiation is further included in access request, such as writes behaviour
Work or read operation；
2.MMU inquires TLB tables, determines that there is no physical address corresponding with the virtual address；
3.MMU inquires segment table, determines the corresponding UAS device identifications of the virtual address；
The device identification of the virtual address of request, operation instruction and process number and UAS are sent in message type by 4.MMU
Memory controller；
5. message type Memory Controller Hub sends access request message to the corresponding UAS of UAS device identifications；
Wherein, access request message includes virtual address, operation instruction, process number and first message attribute, wherein, the
One message attributes are indicating that virtual addresses of the UAS in access request message distributes corresponding physical address；
The processor of 6.UAS is accepted the interview request message, and parsing obtains virtual address, the behaviour that access request message includes
It indicates, process number and first message attribute；
7.UAS inquires corresponding progress information table according to process number, determine physical address corresponding with the virtual address with
And the storage medium that the physical address is directed toward, later allocation space order is sent to physical allocation module；
8. physical allocation module is the virtual address allocated physical address in corresponding storage medium, page table is created,
In, page table includes the mapping relations between virtual address and corresponding physical address；
9. the page table newly created is sent to update processor TLB tables by physical allocation module, while will be assigned message
Return to the processor of UAS；
Operation instruction of the processor of 10.UAS in access request message and the physical address just distributed, perform and behaviour
Make to indicate corresponding access request.
It is assumed to be read operation, data are returned to Memory Controller Hub, Memory Controller Hub by the processor of UAS by rambus
CPU is returned data to, while data are cached in cache blocks (cache).
Fig. 4 is the system architecture diagram of the access information processing method to storage device that another embodiment of the present invention provides,
As shown in figure 4, processor connects multiple UAS equipment by rambus, each UAS equipment include multi storage (such as
DRAM, NVM, SSD, DISK) etc..System architecture diagram based on shown in Fig. 4, in the embodiment of the present invention, to allocated physical address
Integrated storage device access method realization process it is as follows：
1.CPU sends the access request comprising virtual address to MMU.
Wherein, when CPU receives the access request including virtual address of process initiation, CPU can will include virtual
Address, process number access request be sent to MMU；Wherein, the operation instruction of process initiation is further included in access request, such as writes behaviour
Work or read operation.
2.MMU inquires TLB tables, finds physical address corresponding with the virtual address.
3.CPU is according to physical address access cache block cache, if cache is not hit by, i.e. in cache without this physically
Location and corresponding data, then message type Memory Controller Hub according to physical address to will include the physical address UAS send visit
Ask request message.
Wherein, access request message includes physical address, operation instruction and second message attribute, and second message attribute is used
To indicate UAS according to the physical address in the enterprising line range request operation of corresponding storage medium.
The processor of 4.UAS receives access request message, is performed and behaviour in corresponding storage medium according to physical address
Make to indicate corresponding access request.
As read or being written data, if if read request, data are returned to CPU by the controller of UAS, while into
Row cache is replaced.
Fig. 5 is UAS provided in an embodiment of the present invention and message type Memory Controller Hub, the interface diagram of operating system, such as
Shown in Fig. 5：
In order to realize above-described embodiment, the embodiment of the present invention also provides UAS and the message type Memory Controller Hub in processor
Interface, the access request message that received message formula Memory Controller Hub transmits, the particular content of the access request message for example wraps
It includes：
When UAS also unallocated physical address, as virtual address access request, then access request message include：Virtually
Address, process number, the operation instruction of request, first message attribute (identify that included in the access request message is virtual address,
UAS is needed to distribute corresponding physical address).
When UAS allocated physical address, as physical address access request, then access request message include：Physics
(identify that the access request message includes is physical address, and UAS is according to this for address, the operation instruction of request, second message attribute
Physical address performs access operation).
For example, the embodiment of the present invention also provides connecing between UAS and operating system (Operation System, OS)
Mouthful, the interface transmission content for example including：Using the starting and ending address of the Virtual Space of application, storage strategy, process number,
Process number of destruction process etc..
For example, the embodiment of the present invention also provides page table, wherein, page table includes：The corresponding object of virtual address
Manage the mapping relations between mapping relations and the corresponding storage medium of physical address between address.
For example, the embodiment of the present invention also provides progress information table, wherein, as unit of process, each process includes
One progress information table, using process number as difference, wherein, each single item in progress information table is for example comprising one section of virtual address
Allocation strategy, wherein, the corresponding physical address of this section of virtual address and corresponding physical medium, caching are included in allocation strategy
Strategy etc..
For example, the embodiment of the present invention for example can add segment table in the paging unit of processor, wherein, Mei Gejin
Journey includes a segment table, and each single item in segment table represents that a certain section of virtual address of process and the mapping of a certain UAS device identifications are closed
System；Item in segment table is created by OS when distributing Virtual Space, i.e., determines a certain virtual address and which UAS equipment pair by OS
It should.
Table 1 is the format sample of segment table：
| Initial address 1 | End address 1 | Storage device identification 0 | Operation instruction |
| Initial address 2 | End address 2 | Storage device identification 1 | Operation instruction |
| …… | …… | …… | …… |
For example, the segment table of the embodiment of the present invention can also be stored in a certain UAS, and initial address is stored in processor
In interior specified register；Wherein, UAS device identifications can for example use UAS device addresses.
Table 2 is UAS device identifications and the correspondence of UAS device addresses：
For example, multiple UAS equipment of the embodiment of the present invention can carry be on rambus jointly, each UAS
Initial address in equipment can not be corresponding with a certain storage medium in equipment, but can be as identifying the UAS equipment
Device address.
For example, above-mentioned physical allocation module is the virtual address allocated physical address, creates the specific steps of page table
Including：
The progress information table for the process safeguarded in UAS is navigated to according to the CPU process numbers transmitted；
The progress information table is inquired according to the CPU virtual addresses transmitted and obtains the corresponding allocation strategy of this section of virtual address；
According to allocation strategy, the allocated physical address in corresponding storage medium, and create and store the virtual address and object
Manage the page table of the mapping relations of address.
For example, the processor of above-mentioned UAS includes according to the specific steps of access request message execution access request：
The processor of UAS is spelled by the physical address of distribution and by the operation instruction (reading or writing) of the CPU access requests transmitted
It is connected into an access request, it is assumed that access request Qa；
Qa is inputted into the access request queue inside UAS；
UAS performs the request in access request queue according to dispatching algorithm, eventually performs Qa.
The embodiment of the present invention can realize the unified path for accessing different storage mediums, be suitble to the application scenarios to UAS, i.e.,
CPU can directly access any storage medium in UAS；Shorten the path for accessing the different storage mediums such as SSD, NVM, wherein, UAS
It is responsible for physical address assignments, reduces the number that kernel is absorbed in when accessing, it is possible to reduce memory overhead improves the access performance of UAS.
Fig. 6 is the structure diagram of the access information processing unit to storage device that one embodiment of the invention provides；Such as
Shown in Fig. 6, including：
Determining module 61, for the virtual address that includes of access request instruction initiated according to process, determine with it is described
The corresponding storage device identification of virtual address；
Generation module 62, for generating access request message, the access request message includes access address；
Sending module 63, for the storage device identification determined according to the determining module, to the storage device identification
The processor of the storage device of direction sends the access request message of the generation module generation, so that the place of the storage device
Device is managed according to the access address, access request operation is performed in the storage medium being directed toward in the access address.
Optionally, the determining module 61 is specifically used for：
The virtual address that the access request initiated according to process includes, it is determined whether exist corresponding with the virtual address
Physical address；
If there is no physical address corresponding with the virtual address, it is determined that storage corresponding with the virtual address is set
Standby mark；
If in the presence of physical address corresponding with the virtual address, the physical address is determined according to the physical address
The storage medium of direction according to the storage medium, determines the storage device identification for including the storage medium.
For example, if there is no physical address corresponding with the virtual address, what the generation module 62 generated
The access address that access request message includes be virtual address, and the access request message include first message attribute with
Process number；
If in the presence of physical address corresponding with the virtual address, the access request message of the generation of generation module 62
The access address included is physical address, and the access request message includes second message attribute.
Optionally, the determining module 61 is specifically additionally operable to：Segment table is inquired, the virtual address is preserved in the segment table
With the correspondence between the storage device identification；Storage device corresponding with the virtual address is obtained from the segment table
Mark.
Optionally, the device further includes：
Receiving module 64, for receive the processor of the storage device transmission the virtual address with it is described physically
Correspondence between the storage medium that location and the physical address are directed toward.
Described device of the embodiment of the present invention can perform the method described in embodiment illustrated in fig. 1, the technical principle realized
It is repeated no more with technique effect.
Fig. 7 is the structure diagram of the access information processing unit to storage device that another embodiment of the present invention provides,
As shown in fig. 7, comprises：
Receiving module 71, for receiving the access request message of the processor of access equipment transmission, the access request disappears
Breath includes access address；
Operation module 72, for according to the access address, visit to be performed in the storage medium being directed toward in the access address
Ask request operation.
If further including first message attribute and process number in the access request message, the operation module 72 is specifically used
In：
According to the first message attribute, determine that the access address that the access request message includes is virtual address；
According to the process number, progress information table corresponding with the process number is inquired, is determined and the virtual address pair
The physical address answered, the progress information table include the preset allocation strategy corresponding with the virtual address of operating system,
The allocation strategy includes the storage medium that physical address corresponding with the virtual address and the physical address are directed toward；
According to the determining physical address, access request behaviour is performed in the storage medium being directed toward in the physical address
Make.
If further including second message attribute in the access request message, the operation module 72 is specifically used for：According to
The second message attribute determines that the access address that the access request message includes is physical address；And in the physics
Access request operation is performed in the storage medium that address is directed toward.
Optionally, the device further includes：
Module 73 is established, is deposited for establishing the virtual address with what the physical address and the physical address were directed toward
Correspondence between storage media；
Sending module 74, for the storage for being directed toward the virtual address and the physical address and the physical address
Correspondence between medium is sent to the processor.
Described device of the embodiment of the present invention can perform the method described in embodiment illustrated in fig. 2, the technical principle realized
It is repeated no more with technique effect.
The embodiment of the present invention also provides a kind of access information processing system to storage device, including access equipment and storage
Equipment, the access equipment include processor, and the storage device includes processor, and the storage device includes more than one
Storage medium；Wherein, the processor of the access equipment includes the access to storage device described in embodiment as shown in Figure 6
Information processing unit；The access to storage device that the processor of the storage device includes described in embodiment as shown in Figure 7 is believed
Cease processing unit；Above-mentioned Fig. 1 and embodiment shown in Fig. 2 can be performed, detailed content repeats no more.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function can have other dividing mode, such as multiple units or component in actual implementation
It may be combined or can be integrated into another system or some features can be ignored or does not perform.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, one can be stored in the form of code and is counted
In calculation machine read/write memory medium.Above-mentioned code is stored in a computer readable storage medium, including some instructions to
Processor or hardware circuit is made to perform the part or all of step of each embodiment the method for the present invention.And aforementioned storage is situated between
Matter includes：Universal Serial Bus Interface without the miniature high power capacity mobile storage disc of phisical drive, mobile hard disk, read-only deposit
Reservoir (English：Read-Only Memory, abbreviation ROM), random access memory (English：Random Access Memory,
Abbreviation RAM), novel non-volatile memory device (Non-Volatile Memory), solid state disk (Solid State Disk) or
The various media that can store program code such as person's disk (DISK).
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic；
And these modifications or replacement, the protection model for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (15)
1. a kind of access information processing method to storage device, the storage device includes more than one storage medium,
It is characterized in that, including：
The virtual address that the instruction of storage device access request that the processor of access equipment is initiated according to process includes, determine with
The corresponding storage device identification of the virtual address；
Access request message is generated, the access request message includes access address；
According to the storage device identification, the processor for the storage device being directed toward to the storage device identification sends the access
Request message, so that the access address that the processor of the storage device includes according to the access request message, needle
Access request operation is performed in the storage medium being directed toward to the access address；
Wherein, the virtual address that the storage device access request instruction that the processor of access equipment is initiated according to process includes,
Determine storage device identification corresponding with the virtual address, including：
The processor inquiry segment table of access equipment, preserve in the segment table virtual address and the storage device identification it
Between correspondence；
Storage device identification corresponding with the virtual address is obtained from the segment table.
2. according to the method described in claim 1, it is characterized in that, the processor of access equipment is set according to the storage that process is initiated
The virtual address that standby access request instruction includes, determines storage device identification corresponding with the virtual address, including：
The virtual address that the storage device access request instruction that the processor of access equipment is initiated according to process includes, really
It is fixed to whether there is physical address corresponding with the virtual address；
If there is no physical address corresponding with the virtual address, it is determined that storage device mark corresponding with the virtual address
Know；
If in the presence of physical address corresponding with the virtual address, determine that the physical address is directed toward according to the physical address
Storage medium, according to the storage medium, determine the storage device identification for including the storage medium.
3. method according to claim 1 or 2, it is characterised in that：
If there is no physical address corresponding with the virtual address, access that the access request message of the generation includes
Address is virtual address, and the access request message includes first message attribute and process number；
If in the presence of physical address corresponding with the virtual address, access that the access request message of the generation includes
Location is physical address, and the access request message includes second message attribute.
4. according to the method described in claim 1, it is characterized in that, determine whether there is physics corresponding with the virtual address
Include before address：
Receive the virtual address and the physical address and the physical address that the processor of the storage device is sent
Correspondence between the storage medium of direction.
5. a kind of access information processing method to storage device, the storage device includes more than one storage medium,
It is characterized in that, including：
The processor of storage device receives the access request message that the processor of access equipment is sent, in the access request message
Including access address；
According to the access address, access request operation is performed in the storage medium being directed toward in the access address；
First message attribute and process number are further included in the access request message, then according to the access address, in the visit
It asks and access request operation is performed in the storage medium that address is directed toward, including：
The processor of storage device determines the access address that the access request message includes according to the first message attribute
For virtual address；
According to the process number, progress information table corresponding with the process number is inquired, is determined corresponding with the virtual address
Physical address, the progress information table includes the preset allocation strategy corresponding with the virtual address of operating system, described
Allocation strategy includes the storage medium that physical address corresponding with the virtual address and the physical address are directed toward；
According to the determining physical address, access request operation is performed in the storage medium being directed toward in the physical address.
6. according to the method described in claim 5, it is characterized in that, second message category is further included in the access request message
Property, then according to the access address, access request operation is performed in the storage medium being directed toward in the access address, including：
The processor of storage device determines the access address that the access request message includes according to the second message attribute
For physical address；
Access request operation is performed in the storage medium being directed toward in the physical address.
7. according to the method described in claim 5, it is characterized in that, according to the process number, inquiry is corresponding with the process number
Progress information table, determine physical address corresponding with the virtual address after, including：
The processor of storage device establishes the storage that the virtual address is directed toward with the physical address and the physical address
Correspondence between medium；
Correspondence between the storage medium that the virtual address and the physical address and the physical address are directed toward
It is sent to the processor of the access equipment.
8. a kind of access information processing unit to storage device, the storage device includes more than one storage medium,
It is characterized in that, including：
Determining module, the virtual address that the storage device access request instruction for being initiated according to process includes, determining and institute
State the corresponding storage device identification of virtual address；
Generation module, for generating access request message, the access request message includes access address；
Sending module for the storage device identification determined according to the determining module, is directed toward to the storage device identification
The processor of storage device sends the access request message of the generation module generation, so that the processor root of the storage device
According to the access address that the access request message includes, access request is performed in the storage medium being directed toward in the access address
Operation；
Wherein, the determining module is specifically used for：
Segment table is inquired, the correspondence between the virtual address and the storage device identification is preserved in the segment table；
Storage device identification corresponding with the virtual address is obtained from the segment table.
9. device according to claim 8, which is characterized in that the determining module is specifically used for：
The virtual address that the access request initiated according to process includes, it is determined whether there is object corresponding with the virtual address
Manage address；
If there is no physical address corresponding with the virtual address, it is determined that storage device mark corresponding with the virtual address
Know；
If in the presence of physical address corresponding with the virtual address, determine that the physical address is directed toward according to the physical address
Storage medium, according to the storage medium, determine the storage device identification for including the storage medium.
10. device according to claim 9, it is characterised in that：The generation module is specifically used for：
If there is no physical address corresponding with the virtual address, the access address that the access request message of generation includes is
Virtual address, and the access request message includes first message attribute and process number；
If in the presence of physical address corresponding with the virtual address, the access address that the access request message of generation includes is object
Address is managed, and the access request message includes second message attribute.
11. device according to claim 9, which is characterized in that further include：
Receiving module, for receive the virtual address and the physical address of the transmission of the processor of the storage device and
Correspondence between the storage medium that the physical address is directed toward.
12. a kind of access information processing unit to storage device, the storage device includes more than one storage medium,
It is characterized in that, including：
Receiving module for receiving the access request message of the processor of access equipment transmission, wraps in the access request message
Include access address；
Operation module, for according to the access address, access request to be performed in the storage medium being directed toward in the access address
Operation；
Wherein, first message attribute and process number are further included in the access request message, then the operation module is specifically used for：
According to the first message attribute, determine that the access address that the access request message includes is virtual address；
According to the process number, progress information table corresponding with the process number is inquired, is determined corresponding with the virtual address
Physical address, the progress information table includes the preset allocation strategy corresponding with the virtual address of operating system, described
Allocation strategy includes the storage medium that physical address corresponding with the virtual address and the physical address are directed toward；
According to the determining physical address, access request operation is performed in the storage medium being directed toward in the physical address.
13. device according to claim 12, which is characterized in that second message category is further included in the access request message
Property, then the operation module is specifically used for：According to the second message attribute, the visit that the access request message includes is determined
It is physical address to ask address；And access request operation is performed in the storage medium being directed toward in the physical address.
14. device according to claim 13, which is characterized in that further include：
Module is established, for establishing the storage medium that the virtual address is directed toward with the physical address and the physical address
Between correspondence；
Sending module, for the storage medium that is directed toward the virtual address and the physical address and the physical address it
Between correspondence be sent to the processor.
15. a kind of access information processing system to storage device, which is characterized in that including access equipment and storage device, institute
It states access equipment and includes processor, the storage device includes processor, and the storage device includes more than one storage
Medium；
The processor of the access equipment include as claim 8-11 any one of them to the access information of storage device at
Manage device；
The processor of the storage device include as claim 12-14 any one of them to the access information of storage device at
Manage device.
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| CN201410239181.3A CN105335308B (en) | 2014-05-30 | 2014-05-30 | To access information treating method and apparatus, the system of storage device |
| PCT/CN2015/079675 WO2015180598A1 (en) | 2014-05-30 | 2015-05-25 | Method, apparatus and system for processing access information of storage device |
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| CN110753910A (en) * | 2017-06-22 | 2020-02-04 | 瑞典爱立信有限公司 | Apparatus and method for allocating memory in a data center |
| CN110392084B (en) * | 2018-04-20 | 2022-02-15 | 伊姆西Ip控股有限责任公司 | Method, apparatus and computer program product for managing addresses in a distributed system |
| CN110554911A (en) * | 2018-05-30 | 2019-12-10 | 阿里巴巴集团控股有限公司 | Memory access and allocation method, memory controller and system |
| CN111224851B (en) * | 2018-11-23 | 2022-09-27 | 阿里巴巴集团控股有限公司 | Data transmission equipment and processing system, and message distribution method and device |
| CN111865639B (en) * | 2019-04-30 | 2023-07-14 | 深信服科技股份有限公司 | Method and device for collecting information of snmp service equipment and electronic equipment |
| CN113868155B (en) * | 2021-11-30 | 2022-03-08 | 苏州浪潮智能科技有限公司 | Memory space expansion method and device, electronic equipment and storage medium |
| CN117170854A (en) * | 2022-05-26 | 2023-12-05 | 华为技术有限公司 | Memory access method and related equipment |
| CN115456862B (en) * | 2022-11-09 | 2023-03-24 | 深流微智能科技(深圳)有限公司 | Memory access processing method and device for image processor |
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