CN107222579A - A kind of method and device of iSCSI protocol session establishment - Google Patents

A kind of method and device of iSCSI protocol session establishment Download PDF

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Publication number
CN107222579A
CN107222579A CN201710611829.9A CN201710611829A CN107222579A CN 107222579 A CN107222579 A CN 107222579A CN 201710611829 A CN201710611829 A CN 201710611829A CN 107222579 A CN107222579 A CN 107222579A
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China
Prior art keywords
login
kernel port
kernel
port
sum
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CN201710611829.9A
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刘斌
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Zhengzhou Yunhai Information Technology Co Ltd
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Zhengzhou Yunhai Information Technology Co Ltd
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Priority to CN201710611829.9A priority Critical patent/CN107222579A/en
Publication of CN107222579A publication Critical patent/CN107222579A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/14Session management
    • H04L67/141Setup of application sessions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/26Special purpose or proprietary protocols or architectures

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer And Data Communications (AREA)

Abstract

The invention discloses a kind of method of iSCSI protocol session establishment, by using login access times distribution kernel port, when can avoid distributing kernel port by login network interface card, the multiple login requests of same network interface card concentrate on a kernel port and other kernel port it is idle the problem of;Distributing kernel port according to login number of times can make each kernel port balancedly receive login, therefore reasonably make use of cpu resource, iSCSI protocol treatment effeciency be also improved, so as to improve the performance of iSCSI protocol.The embodiment of the present invention also provides a kind of device of iSCSI protocol session establishment, can equally realize above-mentioned technique effect.

Description

A kind of method and device of iSCSI protocol session establishment
Technical field
The present invention relates to procotol field, more specifically to the method and dress of a kind of iSCSI protocol session establishment Put.
Background technology
The realization of iSCSI protocol technology refers to initiate request, storage end by the iSCSI initiator of client ISCSI target processing requests complete iSCSI protocol processing procedure.
IET is a kind of iSCSI target of kernel state, and the main process that iSCSI is handled using IET is in kernel state Perform, wherein there is a kind of entitled kernel port data structure, each kernel port is tied up with each kernel thread It is fixed, wherein, each kernel thread is responsible for the processing procedure of iSCSI protocol.
ISCSI login is the process that client and storage end set up session, and by login, client is built with storage end Session is erected, so as to enter line command, data and the transmission of state.How to distribute multiple login processes is exactly to distribute iSCSI The task process of protocol processes.
Distribution login method is allocated based on physical port at present, i.e., fixed physical port corresponds to fixation Kernel port, but can be in this case part kernel port kernel thread it is very crowded, part kernel Kernel thread is in idle condition to port above, causes the wasting of resources.
Therefore, how kernel port kernel threads above rationally to be utilized, it is to avoid the wasting of resources, is people in the art The problem of member needs to solve.
The content of the invention
It is an object of the invention to provide a kind of method and device of iSCSI protocol session establishment, rationally to utilize Kernel port kernel threads above, it is to avoid the wasting of resources.
To achieve the above object, the embodiments of the invention provide following technical scheme:
A kind of method of iSCSI protocol session establishment, including:
The login sent by client is received to ask;
Record the number of times of login requests;
The preset times scope where the number of times is determined, is that the login asks to distribute according to default corresponding relation Kernel port, and set up session;Wherein described default corresponding relation is the preset times scope and the kernel The default corresponding relation of port sequence number.
Wherein it is determined that the preset times scope where the number of times, is login requests point according to default corresponding relation With kernel port, including:
It is login request distribution kernel port using the number of times, wherein the sequence number of the kernel port It is identical with the number of times.
Wherein, before being login request distribution kernel port using the number of times, in addition to:
Judging the number of times, whether the sum equal to kernel port plus one;
If the number of times then is updated into 1.
Wherein, before being login request distribution kernel port using the number of times, in addition to:
Judge whether the number of times is more than kernel port sum;
If so, then doing complementation using the number of times and the sum obtains remainder, please for the login using the remainder Seek distribution kernel port;
If it is not, it is the step of login requests distribute kernel port then to continue executing with using the number of times.
Wherein, after the login requests that the reception is sent by client, in addition to:
Judge the whether available free kernel port of storage end;
If so, being then one idle kernel port of login request distribution;
If it is not, the step of then continuing executing with the number of times of the record login requests.
A kind of device of iSCSI protocol session establishment, including:
Login request receiving modules, for receiving the login requests sent by client;
Logging modle, the number of times for recording login requests;
First distribute module, is institute according to default corresponding relation for determining the preset times scope where the number of times Login request distribution kernel port are stated, and set up session;Wherein described default corresponding relation is the preset times scope With the corresponding relation of the sequence number of the kernel port.
Wherein, first distribute module specifically for:
It is login request distribution kernel port using the number of times, and sets up session;Wherein described kernel Port sequence numbers are identical with the number of times.
Wherein, in addition to:
First judge module, for before being login request distribution kernel port using the number of times, judging The sum whether number of times is equal to kernel port adds one;
Update module, the sum that kernel port whether are equal to for stating number of times adds for the moment, and the number of times is updated into 1.
Wherein, in addition to:
Second judge module, for before being login request distribution kernel port using the number of times, judging Whether the number of times is more than kernel port sum;If it is not, then continuing to call first distribute module;
Second distribute module, for when the number of times be more than kernel port sum when, using the number of times with it is described Sum does complementation and obtains remainder, is login request distribution kernel port using the remainder.
Wherein, in addition to:
3rd judge module, after the login requests sent for receiving by client, judges whether storage end is available free Kernel port;If it is not, then continuing to call the logging modle;
3rd distribute module, is the login requests distribution one during available free for storage end kernelport Individual idle kernel port.
By above scheme, a kind of method of iSCSI protocol session establishment provided in an embodiment of the present invention, including: The login sent by client is received to ask;Record the number of times of login requests;Determine the preset times model where the number of times Enclose, be login request distribution kernel port according to default corresponding relation, and set up session;Wherein described default correspondence Relation is the default corresponding relation of the preset times scope and the sequence number of the kernel port.
As can be seen here, the method for a kind of iSCSI protocol session establishment provided in an embodiment of the present invention, by using login Access times distribution kernel port, can avoid by login network interface card distribute kernel port when, same network interface card it is many Secondary login request concentrate on a kernelport and the problem of other kernel port idle;According to login number of times point With kernel port each kernel port can be made balancedly to receive login, therefore reasonably make use of cpu resource, ISCSI protocol treatment effeciency is improved, so as to improve the performance of iSCSI protocol.The embodiment of the present invention also provides a kind of iSCSI The device that protocol conversation is set up, can equally realize above-mentioned technique effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of iSCSI protocol session establishment disclosed in the embodiment of the present invention;
Fig. 2 is a kind of method flow diagram of specific iSCSI protocol session establishment disclosed in the embodiment of the present invention;
Fig. 3 is a kind of method flow diagram of specific iSCSI protocol session establishment disclosed in the embodiment of the present invention;
Fig. 4 is a kind of apparatus structure schematic diagram of iSCSI protocol session establishment disclosed in the embodiment of the present invention.
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 carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
The embodiment of the invention discloses a kind of method and device of iSCSI protocol session establishment, rationally to utilize kernel Port kernel threads above, it is to avoid the wasting of resources.
Referring to Fig. 1, a kind of method of iSCSI protocol session establishment provided in an embodiment of the present invention is specifically included:
S101, receives the login sent by client and asks.
It should be noted that ISCSI login is the process that client and storage end set up session, client passes through Login sets up session with storage end, so as to enter line command, data and the transmission of state.Client initiates login requests Afterwards, storage end needs to distribute kernel port for login, then sets up connection.
S102, the number of times of record login requests.
In this programme, storage end receives the number of times that this login requests are recorded after login.
S103, determines the preset times scope where the number of times, is login requests point according to default corresponding relation With kernel port, and set up session;Wherein described default corresponding relation is the preset times scope and the kernel The default corresponding relation of port sequence number.
Specifically, it is determined that a numbers range and corresponding relation, find which scope where this login number of times, Again by corresponding relation, find which kernel port the login in the range of this should be assigned to.For example storage end has 5 When individual kernel port, estimated login have 10 times, then can be defined as corresponding relation as shown in table 1.
The relation corresponding table of table 1
Scope number Login number Kernel port
1 1、2 1
2 3、4 2
3 5、6 3
4 7、8 4
5 9、10 5
It should be noted that login number of times is not limited only to shown in table 1, scope can also be used as using the 1st time and the 6th time 1, it is corresponding with kernel port1, rational login models can also be determined according to the sum of login number and kernel port Enclose, make rational mapping table, here is omitted.
By above scheme, a kind of method of iSCSI protocol session establishment provided in an embodiment of the present invention passes through profit Kernel port are distributed with login access times, it is same when can avoid distributing kernel port by login network interface card The multiple login requests of network interface card concentrate on a kernel port and other kernel port it is idle the problem of;According to login Number of times distribution kernel port each kernel port can be made balancedly to receive login, therefore reasonably make use of CPU Resource, also improves iSCSI protocol treatment effeciency, so as to improve the performance of iSCSI protocol.
The embodiment of the invention discloses a kind of method of specific iSCSI protocol session establishment, an embodiment is different from, The embodiment of the present invention has made further restriction and explanation to S103 in above-described embodiment, other step contents and above-described embodiment Roughly the same, specific steps content is referred to the corresponding part of above-described embodiment, and here is omitted, specifically, S103 bags Include:
It is login request distribution kernel port using the number of times, wherein the sequence number of the kernel port It is identical with the number of times.
Specifically, corresponding kernel port are distributed for it using login number of times, such as current login number is 1, So it is allocated to kernel port1, that is to say, that login1 correspondence kernel port1, login2 correspondences kernel Port2, by that analogy.
As can be seen here, each kernel port has been evenly distributed to login, therefore is not in one Many login situation is saved bit by bit on kernel port.
Based on above-described embodiment, the embodiment of the present invention provides a kind of method of specific iSCSI protocol session establishment, referring to Fig. 2, the embodiment of the present invention is specifically included:
S201, receives the login sent by client and asks.
S202, the number of times of record login requests.
S203, judges whether the sum equal to kernel port adds one to the number of times.
It should be noted that when carrying out one-to-one matching using above-described embodiment, if login number is more than kernel Port sums, then be accomplished by number of times samsara, then reallocate kernel port.
Specifically, first determine whether whether login number of times is equal to kernel port sums and Jia one.
S204, if the number of times then is updated into 1.
Specifically, when login number is equal to kernel port sums plus a period of time, this login number of times asked is classified as 1.For example, it is the 6th time to be counted when login times, when storage end has 5 kernelport, then by the login requests of the 6th time again It is set to the 1st time, and this this login requests is assigned to the corresponding kernel port of first time login.Login next time after Continuous Jia 1 be 2, by that analogy up to number of times is set to 1 by the 6th time again.
S205, is login request distribution kernel port using the number of times, wherein the kernel port Sequence number is identical with the number of times.
Based on above-described embodiment, the embodiments of the invention provide a kind of method of specific iSCSI protocol session establishment, ginseng See Fig. 3, the embodiment of the present invention is specifically included:
S301, receives the login sent by client and asks.
S302, the number of times of record login requests.
S303, judges whether the number of times is more than kernel port sum.
S304, if so, then doing complementation using the number of times and the sum obtains remainder, it is described using the remainder Login request distribution kernel port.
Specifically, when current login times number is more than kernel port sums, number of times and kernel port sums are utilized Do complementation and obtain remainder, be login distribution kernel port using remainder.
For example, when kernel port sum is 5, this time login number is 6, then it is 1 that complementation, which obtains remainder, by the The login of 6 times is assigned as first time login correspondence kernel port1.
S305, if it is not, it is the step of login requests distribute kernel port then to continue executing with using the number of times.
If login number is not above kernel port sums, then the side that can be provided according to above-described embodiment Method, matches correspondence kernel port using number of times, for example, is assigned to kernelport1 for the first time.
S305, is login request distribution kernel port using the number of times, wherein the kernel port Sequence number is identical with the number of times.
In order to more rationally utilize resource, it is to avoid waste idle kernel port, the embodiments of the invention provide one kind tool Body ground embodiment, after the login requests that described reception is sent by client in the above-described embodiments, in addition to:
Judge the whether available free kernel port of storage end;
If so, being then one idle kernel port of login request distribution;
If it is not, the step of then continuing executing with the number of times of the record login requests.
It should be noted that when distributing kernel port using login number for login, might have one Kernel port are idle, but the kernel port corresponding to current login to be allocated are not that this is idle Before kernel port, therefore record number of times, first determine whether in storage end whether available free kernel port, if Have, be then preferentially assigned to the kernel port of free time, if not re-recording number of times, according to being allocated herein.
Below to a kind of device of iSCSI protocol session establishment provided in an embodiment of the present invention, it is introduced, referring to Fig. 4, A kind of device of iSCSI protocol session establishment provided in an embodiment of the present invention is specifically included:
Login request receiving modules 401, for receiving the login requests sent by client.
It should be noted that ISCSI login is the process that client and storage end set up session, client passes through Login sets up session with storage end, so as to enter line command, data and the transmission of state.Login request receiving modules 401 After the login requests for receiving client initiation, storage end needs to distribute kernel port for login, then sets up connection.
Logging modle 402, the number of times for recording login requests.
In this programme, storage end receives the number of times that logging modle 402 after login records this login requests.
First distribute module 403, for determining the preset times scope where the number of times, be according to default corresponding relation The login requests distribution kernel port, and set up session;Wherein described default corresponding relation is the preset times model Enclose the corresponding relation with the sequence number of the kernelport.
Specifically, the first distribute module 403 determines a numbers range and corresponding relation, finds this login time Which scope where number, then by corresponding relation, find which the login in the range of this should be assigned to kernelport.It should be noted that rational login models can be determined according to the sum of login number and kernelport Enclose, make rational mapping table, here is omitted.
By above scheme, a kind of method of iSCSI protocol session establishment provided in an embodiment of the present invention, first point Kernelport is distributed using login access times with module 403, can avoid distributing kernel by login network interface card During port, the multiple login of same network interface card request concentrates on a kernel port and other kernel port are idle asks Topic;Distributing kernel port according to login number of times can make each kernel port balancedly receive login, therefore close That manages make use of cpu resource, iSCSI protocol treatment effeciency be also improved, so as to improve the performance of iSCSI protocol.
The embodiment of the invention discloses a kind of device of specific iSCSI protocol session establishment, an embodiment is different from, The embodiment of the present invention has made further restriction and explanation to the first distribute module 403 in above-described embodiment, other guide with it is upper State embodiment roughly the same, particular content is referred to the corresponding part of above-described embodiment, and here is omitted, specifically, the One distribute module 403 specifically for:
It is login request distribution kernel port using the number of times, wherein the sequence number of the kernel port It is identical with the number of times.
Specifically, the first distribute module 403 distributes corresponding kernel port using login number of times for it, for example when Preceding login number is 1, then be allocated to kernelport1, that is to say, that login1 correspondence kernelport1, Login2 correspondence kernelport2, by that analogy.
As can be seen here, each kernelport has been evenly distributed to login, therefore is not in a kernel Many login situation is saved bit by bit on port.
Based on above-described embodiment, the embodiment of the present invention provides a kind of device of specific iSCSI protocol session establishment, this hair Bright embodiment is specifically included:
Login request receiving modules, for receiving the login requests sent by client.
Logging modle, the number of times for recording login requests.
First judge module, for before being login request distribution kernel port using the number of times, judging The sum whether number of times is equal to kernel port adds one.
It should be noted that when carrying out one-to-one matching using above-described embodiment, if login number is more than kernel Port sums, then be accomplished by number of times samsara, then reallocate kernel port.
Specifically, judge whether login number of times is equal to kernel port sums and adds first with the first judge module One.
Update module, the sum that kernel port whether are equal to for stating number of times adds for the moment, and the number of times is updated into 1.
Specifically, when login number is equal to kernel port sums plus a period of time, update module asks this login Number of times is classified as 1.For example, it is the 6th time to be counted when login times, when storage end has 5 kernel port, then by the login of the 6th time Request is set to the 1st time again, and this this login requests are assigned into the corresponding kernel port of first time login.Next time Login to continue Jia 1 be 2, number of times is set to 1 again up to the 6th time by that analogy.
First distribute module, for being login request distribution kernel port using the number of times, and sets up meeting Words;Wherein described kernel port sequence numbers are identical with the number of times.
Based on above-described embodiment, the embodiments of the invention provide a kind of device of specific iSCSI protocol session establishment, sheet Inventive embodiments are specifically included:
Login request receiving modules, for receiving the login requests sent by client;
Logging modle, the number of times for recording login requests.
Second judge module, for before being login request distribution kernel port using the number of times, judging Whether the number of times is more than kernel port sum;If it is not, then continuing to call first distribute module.
Second distribute module, for when the number of times be more than kernel port sum when, using the number of times with it is described Sum does complementation and obtains remainder, is login request distribution kernel port using the remainder.
Specifically, current login times number be more than kernel port it is total when, the second distribute module using number of times with Kernel port sums do complementation and obtain remainder, are login distribution kernel port using remainder.
For example, when kernel port sum is 5, this time login number is 6, then it is 1 that complementation, which obtains remainder, by the The login of 6 times is assigned as first time login correspondence kernel port1.
First distribute module, for being login request distribution kernel port using the number of times, and sets up meeting Words;Wherein described kernel port sequence numbers are identical with the number of times.
If login number is not above kernel port sums, then be referred to the dress of above-described embodiment offer Put, the first distribute module is for example assigned to kernel port1 for the first time using number of times matching correspondence kernel port.
In order to more rationally utilize resource, it is to avoid waste idle kernel port, the embodiments of the invention provide one kind tool The device of the iSCSI protocol session establishment of body, also includes in the above-described embodiments:
3rd judge module, after the login requests sent for receiving by client, judges whether storage end is available free Kernel port;If it is not, then continuing to call the logging modle;
3rd distribute module, is the login requests distribution during available free for storage end kernel port One idle kernel port.
It should be noted that when distributing kernel port using login number for login, might have one Kernel port are idle, but the kernel port corresponding to current login to be allocated are not that this is idle Before kernel port, therefore record number of times, whether the 3rd judge module first determines whether available free in storage end Kernelport, if so, then the 3rd distribute module is preferentially assigned to the kernel port of free time, if do not re-recorded secondary Number, according to being allocated herein.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (10)

1. a kind of method of iSCSI protocol session establishment, it is characterised in that including:
The login sent by client is received to ask;
Record the number of times of login requests;
The preset times scope where the number of times is determined, is login request distribution kernel according to default corresponding relation Port, and set up session;Wherein described default corresponding relation is the preset times scope and the sequence number of the kernel port Default corresponding relation.
2. according to the method described in claim 1, it is characterised in that determine the preset times scope where the number of times, according to Default corresponding relation is login request distribution kernel port, including:
It is login request distribution kernel port using the number of times, wherein sequence number and the institute of the kernel port State number of times identical.
3. method according to claim 2, it is characterised in that ask distribution using the number of times for the login Before kernel port, in addition to:
Judging the number of times, whether the sum equal to kernel port plus one;
If the number of times then is updated into 1.
4. method according to claim 2, it is characterised in that ask distribution using the number of times for the login Before kernel port, in addition to:
Judge whether the number of times is more than kernel port sum;
If so, then doing complementation using the number of times and the sum obtains remainder, it is login requests point using the remainder With kernel port;
If it is not, it is the step of login requests distribute kernel port then to continue executing with using the number of times.
5. method as claimed in any of claims 1 to 4, it is characterised in that what the reception was sent by client After login requests, in addition to:
Judge the whether available free kernel port of storage end;
If so, being then one idle kernel port of login request distribution;
If it is not, the step of then continuing executing with the number of times of the record login requests.
6. a kind of device of iSCSI protocol session establishment, it is characterised in that including:
Login request receiving modules, for receiving the login requests sent by client;
Logging modle, the number of times for recording login requests;
First distribute module, is described according to default corresponding relation for determining the preset times scope where the number of times Login request distribution kernel port, and set up session;Wherein described default corresponding relation be the preset times scope with The corresponding relation of the sequence number of the kernel port.
7. device according to claim 6, it is characterised in that first distribute module specifically for:
It is login request distribution kernel port using the number of times, and sets up session;Wherein described kernel port Sequence number is identical with the number of times.
8. device according to claim 7, it is characterised in that also include:
First judge module, for before being login request distribution kernel port using the number of times, judging described The sum whether number of times is equal to kernel port adds one;
Update module, the sum that kernel port whether are equal to for stating number of times adds for the moment, and the number of times is updated into 1.
9. device according to claim 7, it is characterised in that also include:
Second judge module, for before being login request distribution kernel port using the number of times, judging described Whether number of times is more than kernel port sum;If it is not, then continuing to call first distribute module;
Second distribute module, for when the number of times be more than kernel port sum when, utilize the number of times and the sum Do complementation and obtain remainder, be login request distribution kernel port using the remainder.
10. the device according to any one in claim 6 to 9, it is characterised in that also include:
3rd judge module, after the login requests sent for receiving by client, judges whether storage end is available free kernel port;If it is not, then continuing to call the logging modle;
3rd distribute module, is the login requests distribution one during available free for storage end kernel port Idle kernel port.
CN201710611829.9A 2017-07-25 2017-07-25 A kind of method and device of iSCSI protocol session establishment Pending CN107222579A (en)

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Application publication date: 20170929