CN104615564A - Data transmission method based on QPI bus and computer system - Google Patents
Data transmission method based on QPI bus and computer system Download PDFInfo
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- CN104615564A CN104615564A CN201510061792.8A CN201510061792A CN104615564A CN 104615564 A CN104615564 A CN 104615564A CN 201510061792 A CN201510061792 A CN 201510061792A CN 104615564 A CN104615564 A CN 104615564A
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Abstract
The invention provides a data transmission method based on a QPI bus and a computer system. The computer system comprises an interaction unit connected with another computer system through the QPI bus, a dividing unit used for obtaining a data space from the computer system through dividing, an establishing unit used for establishing the mapping relation between the data space of the computer system and the data space of another computer system, a processor used for sending a QPI message containing a first address of the data space to a system controller, and the system controller used for mapping the first address into a second address of the data space of another computer system according to the mapping relation and sending a QPI message containing the second address to another computer system. By the adoption of the scheme, data transmission efficiency between interconnected systems is improved.
Description
Technical field
The present invention relates to field of computer technology, particularly one is based on the data transmission method of QPI (Quick PathInterconnect, express passway is interconnected) bus and computer system.
Background technology
Along with the fast development of computer technology, the requirement of user to computer digital animation efficiency is also more and more higher.
At present, most enterprises, in server-type computer utility scene, all uses multiple computing machine to carry out collaborative work.Such as, the mode such as computer system or dual-host backup is used to carry out collaborative work.Wherein, the data transmission between existing computer system utilizes network interface card to carry out Internet Transmission, and efficiency is lower.
Summary of the invention
In view of this, the invention provides a kind of data transmission method and the computer system that give QPI bus, with the problem that the efficiency solving prior art is lower.
The invention provides a kind of computer system, comprising:
Interactive unit, is connected with other computer systems by QPI bus;
Division unit, for marking off data space in computer systems, which;
Set up unit, for setting up the mapping relations of the data space in place computer system and other computer systems;
Processor, for being sent to system controller by QPI message; The first address of data space is carried in described QPI message;
Described first address maps, for according to described mapping relations, is the second address of the data space in other computer systems by system controller; Described two address QPI message will be carried and send to this other computer systems.
Preferably,
Described system controller, comprising: remote agent's device and Local proxy server;
Described remote agent's device, for receiving processor send QPI message, and perform described in mapping and transmission carry described two address QPI message;
Described Local proxy server, for receiving the QPI message that other computer systems are sent, and sends to described processor.
Preferably, described division unit, for marking off first data space and the second data space with continuation address; Described first data space is identical with the address number of described second data space; Described first address for the address of the first data space in computer systems, which, described second address is the address of the second data space in other computer systems described.
Preferably,
Comprise further: map unit, for by described first data space map in computer systems, which to system controller, by described second data space map in computer systems, which to physical memory;
Described processor, for being the address of the first data space according to the address of carrying in QPI message, then sends to the first system controller that the address maps of this first data space arrives;
System controller, the QPI message receiving other computer systems and send further, for parse in the described QPI message that receives carry the address of the second data space in computer systems, which, to the second data space address maps to physical memory in read corresponding data, in the data read, carry the address of the first data space in other computer systems, send to this other computer systems.
The invention provides a kind of data transmission method based on QPI bus, is each computer system loading system controller; Utilize QPI bus each computer system to be connected, in each computer system, mark off data space, set up the mapping relations of the data space in different computer system; Comprise:
QPI message is sent to the first system controller in first computer system by the first processor in first computer system; The first address of the data space in first computer system is carried in described QPI message;
Described first address maps, according to described mapping relations, is the second address of the data space in second computer system by the first system controller;
The first system controller sends to second system controller in second computer system, to trigger described second system controller according to carrying the data that described in described two address QPI Receive message, the second address is corresponding by carrying described two address QPI message.
Preferably,
Described system controller, comprising: remote agent's device and Local proxy server;
By in described the first system controller remote agent's device receive first processor send QPI message, and perform described in mapping and transmission carry described two address QPI message;
Comprise further: the Local proxy server in the first system controller receives the QPI message that the remote agent's device in second system controller is sent, and sends to first processor.
Preferably, describedly in each computer system, mark off data space, comprising:
First data space and the second data space with continuation address is marked off in each computer system; Described first data space is identical with the address number of described second data space; Described first address is the address of the first data space in first computer system, and described second address is the address of the second data space in second computer system.
Preferably,
Comprise further: by described first data space map in each computer system to system controller, by described second data space map in each computer system to physical memory;
QPI message is sent to the first system controller in first computer system by first processor, comprise: first processor is the address of the first data space according to the address of carrying in QPI message, then send to the first system controller that the address maps of this first data space arrives;
Comprise further: second system controller parses the address of carrying the second data space in second computer system in the described QPI message received, to the second data space address maps to physical memory in read corresponding data, in the data read, carry the address of the first data space in first computer system, send to the first system controller in first computer system; The first system controller parses the address that the address of carrying in the data received is the first data space, sends to first processor.
Embodiments provide a kind of data transmission method based on QPI bus and computer system, by utilizing QPI bus, each computer system in interconnection system is connected, and in each computer system loading system controller, the data directly utilizing system controller to carry out between computer system are transmitted, thus improve the data transmission efficiency between interconnection system.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the embodiment of the present invention provides;
Fig. 2 is the interconnection system schematic diagram that the embodiment of the present invention provides;
Fig. 3 is that the system 1 that provides of the embodiment of the present invention is as method flow diagram during read request;
Fig. 4 is the system 1 that provides of the embodiment of the present invention as by method flow diagram during read request;
Fig. 5 is the hardware structure figure of the computer system that the embodiment of the present invention provides;
Fig. 6 is the Computer Systems Organization schematic diagram that the embodiment of the present invention provides;
Fig. 7 is the Computer Systems Organization schematic diagram that another embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, embodiments providing a kind of data transmission method based on QPI bus, is each computer system loading system controller; Utilize QPI bus each computer system to be connected, in each computer system, mark off data space, set up the mapping relations of the data space in different computer system; The method can comprise the following steps:
Step 101: QPI message is sent to the first system controller in first computer system by the first processor in first computer system; The first address of the data space in first computer system is carried in described QPI message.
Step 102: described first address maps, according to described mapping relations, is the second address of the data space in second computer system by the first system controller.
Step 103: the first system controller sends to second system controller in second computer system by carrying described two address QPI message, sends to the second processor in second computer system to trigger described second system controller by carrying described two address QPI message.
According to this programme, by utilizing QPI bus, each computer system in interconnection system is connected, and in each computer system loading system controller, directly utilize the data transmission that system controller carries out between computer system, thus improve the data transmission efficiency between interconnection system.
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Another embodiment of the present invention provides a kind of data transmission method based on QPI bus, and the method can comprise the following steps: be each computer system loading system controller; Utilize QPI bus each computer system to be connected, in each computer system, mark off data space, set up the mapping relations of the data space in different computer system.
As shown in Figure 2, loading system controller in each computer system, wherein, interconnection system comprises the system 1 and system 2 that are connected by QPI bus.System 1 and the system controller including interconnective processor 0, processor 1, processor 2 and processor 3 in system 2 and be connected with processor.
In the present embodiment, system controller can comprise: remote agent's device (RP) and Local proxy server (LP), wherein, RP is used for the computer system reads data to opposite end, and LP is used for reading data in the physical memory of this locality and the computer system data of reading being transferred to opposite end.
In the present embodiment, in each computer system, data space is marked off.
In a preferred embodiment, in each computer system, the space A with continuation address and space B is marked off.Wherein, space A and space B are two independently address spaces.Wherein, the start address of space A is m, and end address is n, for reading data from peer-to-peer system.The start address of space B is x, and end address is y, for peer-to-peer system generation data.Wherein, the address number of space A and space B is equal.That is, n-m=y-x.
In a preferred embodiment, in each system, space A is mapped to the system controller in respective computer system.Namely, when address within the scope of the m to address n of processor access address, the QPI message corresponding to the address within the scope of this is sent to system controller.In each system, space B is mapped to the physical memory in respective computer system.
In the present embodiment, for some computer systems, such as, system 1, system 1 can go system 2 to read data as read request end, also can as by read request end, data are read by system 2, therefore, as shown in Figure 3, Figure 4, system 1 is respectively as process during read request end and system 1 as by process during read request end.
As shown in Figure 3, when system 1 as read request end, system 2 as requested end time, the method can comprise the following steps:
Step 301: the processor 1 of system 1 sends QPI message to the RP1 of system 1.
Before this step, system 2 will need the destination data of transmission to be stored in the physical memory of system 2 in advance, and sends corresponding notification signal to system 1.
In the present embodiment, QPI message carries the destination address A1 in the A of space.
In this step, QPI message is read request message, for reading destination data corresponding to destination address A1 in the physical memory to system 2.
In the present embodiment, when the processor 1 of system 1 is according to the destination address A1 of QPI message, determines that this destination address A1 is arranged in space A, this QPI message is sent to RP1.
Step 302: destination address A1, according to this QPI message, is carried out migration processing by the RP1 of system 1.
In the present embodiment, because the destination data that destination address A1 is corresponding is kept in the physical memory of system 2, and the physical memory of system 2 is corresponding with the LP2 of system 2, therefore, the destination address A1 in QPI message is carried out migration processing.Wherein, the result offset destination address A1 is by A1-(m-x), or, A1-(n-y).
Such as, as shown in table 1 is each address of space A in system 1:
Table 1:
| Sequence number | Address |
| 1 | A1 |
| 2 | A2 |
| 3 | A3 |
| 4 | A4 |
| 5 | A5 |
As shown in table 2 is each address of space B in system 2:
Table 2:
| Sequence number | Address |
| 1 | B1 |
| 2 | B2 |
| 3 | B3 |
| 4 | B4 |
| 5 | B5 |
According to table 1 and table 2 known, RP1 obtains destination address B1 after carrying out migration processing to destination address A1.
Step 303: QPI message is sent to the LP2 of system 2 by the RP1 of system 1.
In the present embodiment, send to that carry in the QPI message of LP2 to be destination address B1 after migration processing.
Step 304:LP2, according to the destination address B1 in QPI message, determines the physical memory that destination address B1 is corresponding, reads the destination data in physical memory in the address mapping table that LP2 preserves.
In the present embodiment, in LP1 and LP2, pre-set the address mapping table of space B and physical memory.
In the present embodiment, the destination address B1 that LP2 parses QPI message is positioned at space B, so to space B address maps to physical memory in read corresponding data.
The destination address B1 of destination data, according to the destination data read, is carried out address A1 for the purpose of migration processing by step 305:LP2.
Destination data is also sent to RP1 by step 306:LP2.
Step 307:RP1 receives destination data, destination data is sent to processor 1.
Said process is system 2 transmits process from data to system 1.
As shown in Figure 4, when system 1 as by read request end, system 2 as request end time, the method can comprise the following steps:
Step 401: the processor 2 of system 2 sends QPI message to the RP2 of system 2.
Before this step, system will need the destination data of transmission to be stored in the physical memory of system 1 in advance, and sends corresponding announcement information to system 2.
In the present embodiment, QPI message carries the destination address A1 in the A of space.
Step 402: destination address A1, according to this QPI message, is carried out migration processing by the RP2 of system 2.
In the present embodiment, such as, destination address A1 is carried out migration processing, to make destination address A1 be mapped in the space B in system 1.
Step 403: QPI message is sent to the LP1 of system 1 by the RP2 of system 2.
Step 404:LP1, according to the destination address B1 in QPI message, determines the physical memory that destination address B1 is corresponding, reads the destination data in physical memory in the address mapping table that LP1 preserves.
The destination address B1 of destination data according to the destination data read, and is carried out offset processor destination address A1 by step 405:LP1.
Destination data is sent to RP2 by step 406:LP1.
Step 407:RP2 receives destination data, destination data is sent to processor 2.
Said process is system 1 transmits process from data to system 2.
According to said process, system 1 is as identical as processing procedure during requested end with system 2 by the processing procedure of system 1 during read request end.
According to such scheme, by utilizing QPI bus, each computer system in interconnection system is connected, and in each computer system loading system controller, directly utilize the data transmission that system controller carries out between computer system, thus improve the data transmission efficiency between interconnection system.
As shown in Figure 5, Figure 6, a kind of computer system is embodiments provided.System embodiment can pass through software simulating, also can be realized by the mode of hardware or software and hardware combining.Say from hardware view; as shown in Figure 5; for the hardware structure diagram of embodiment of the present invention computer system; except the processor shown in Fig. 5, internal memory, network interface and nonvolatile memory; in embodiment, the equipment at system place can also comprise other hardware usually, as the forwarding chip etc. of responsible process message.For software simulating, as shown in Figure 6, as the device on a logical meaning, be by the CPU of its place equipment, computer program instructions corresponding in nonvolatile memory is read operation in internal memory to be formed.The computer system 60 that the present embodiment provides comprises:
Interactive unit 601, is connected with other computer systems by QPI bus;
Division unit 602, for marking off data space in computer systems, which;
Set up unit 603, for setting up the mapping relations of the data space in place computer system and other computer systems;
Processor 604, for being sent to system controller by QPI message; The first address of data space is carried in described QPI message;
Described first address maps, for according to described mapping relations, is the second address of the data space in other computer systems by system controller 605; Described two address QPI message will be carried and send to this other computer systems.
Further,
Described system controller 605, comprising: remote agent's device 6051 and Local proxy server 6052;
Described remote agent's device 6051, for receiving processor send QPI message, and perform described in mapping and transmission carry described two address QPI message;
Described Local proxy server 6052, for receiving the QPI message that other computer systems are sent, and sends to described processor.
Further, described division unit 602, for marking off first data space and the second data space with continuation address; Described first data space is identical with the address number of described second data space; Described first address for the address of the first data space in computer systems, which, described second address is the address of the second data space in other computer systems described.
As shown in Figure 7, in a preferred embodiment, computer system 60 also comprises:
Map unit 701, for by described first data space map in computer systems, which to system controller, by described second data space map in computer systems, which to physical memory;
Described processor 604, for being the address of the first data space according to the address of carrying in QPI message, then sends to the first system controller that the address maps of this first data space arrives;
System controller 605, the QPI message receiving other computer systems and send further, for parse in the described QPI message that receives carry the address of the second data space in computer systems, which, to the second data space address maps to physical memory in read corresponding data, in the data read, carry the address of the first data space in other computer systems, send to this other computer systems.
The content such as information interaction, implementation between each unit in the said equipment, due to the inventive method embodiment based on same design, particular content can see in the inventive method embodiment describe, repeat no more herein.
It should be noted that, in this article, the relational terms of such as first and second and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element " being comprised " limited by statement, and be not precluded within process, method, article or the equipment comprising described key element and also there is other same factor.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in the storage medium of embodied on computer readable, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium in.
Finally it should be noted that: the foregoing is only preferred embodiment of the present invention, only for illustration of technical scheme of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (8)
1. a computer system, is characterized in that, comprising:
Interactive unit, is connected with other computer systems by QPI bus;
Division unit, for marking off data space in computer systems, which;
Set up unit, for setting up the mapping relations of the data space in place computer system and other computer systems;
Processor, for being sent to system controller by QPI message; The first address of data space is carried in described QPI message;
Described first address maps, for according to described mapping relations, is the second address of the data space in other computer systems by system controller; Described two address QPI message will be carried and send to this other computer systems.
2. computer system according to claim 1, is characterized in that,
Described system controller, comprising: remote agent's device and Local proxy server;
Described remote agent's device, for receiving processor send QPI message, and perform described in mapping and transmission carry described two address QPI message;
Described Local proxy server, for receiving the QPI message that other computer systems are sent, and sends to described processor.
3. computer system according to claim 1 is put, and it is characterized in that, described division unit, for marking off first data space and the second data space with continuation address; Described first data space is identical with the address number of described second data space; Described first address for the address of the first data space in computer systems, which, described second address is the address of the second data space in other computer systems described.
4. computer system according to claim 3, is characterized in that,
Comprise further: map unit, for by described first data space map in computer systems, which to system controller, by described second data space map in computer systems, which to physical memory;
Described processor, for being the address of the first data space according to the address of carrying in QPI message, then sends to the first system controller that the address maps of this first data space arrives;
System controller, the QPI message receiving other computer systems and send further, for parse in the described QPI message that receives carry the address of the second data space in computer systems, which, to the second data space address maps to physical memory in read corresponding data, in the data read, carry the address of the first data space in other computer systems, send to this other computer systems.
5. based on a data transmission method for QPI bus, it is characterized in that, is each computer system loading system controller; Utilize QPI bus each computer system to be connected, in each computer system, mark off data space, set up the mapping relations of the data space in different computer system; Comprise:
QPI message is sent to the first system controller in first computer system by the first processor in first computer system; The first address of the data space in first computer system is carried in described QPI message;
Described first address maps, according to described mapping relations, is the second address of the data space in second computer system by the first system controller;
The first system controller sends to second system controller in second computer system, to trigger described second system controller according to carrying the data that described in described two address QPI Receive message, the second address is corresponding by carrying described two address QPI message.
6. method according to claim 5, is characterized in that,
Described system controller, comprising: remote agent's device and Local proxy server;
By in described the first system controller remote agent's device receive first processor send QPI message, and perform described in mapping and transmission carry described two address QPI message;
Comprise further: the Local proxy server in the first system controller receives the QPI message that the remote agent's device in second system controller is sent, and sends to first processor.
7. method according to claim 5, is characterized in that, describedly in each computer system, marks off data space, comprising:
First data space and the second data space with continuation address is marked off in each computer system; Described first data space is identical with the address number of described second data space; Described first address is the address of the first data space in first computer system, and described second address is the address of the second data space in second computer system.
8. method according to claim 7, is characterized in that,
Comprise further: by described first data space map in each computer system to system controller, by described second data space map in each computer system to physical memory;
QPI message is sent to the first system controller in first computer system by first processor, comprise: first processor is the address of the first data space according to the address of carrying in QPI message, then send to the first system controller that the address maps of this first data space arrives;
Comprise further: second system controller parses the address of carrying the second data space in second computer system in the described QPI message received, to the second data space address maps to physical memory in read corresponding data, in the data read, carry the address of the first data space in first computer system, send to the first system controller in first computer system; The first system controller parses the address that the address of carrying in the data received is the first data space, sends to first processor.
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