CN102821043B - Control method and device - Google Patents
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- CN102821043B CN102821043B CN201210264423.5A CN201210264423A CN102821043B CN 102821043 B CN102821043 B CN 102821043B CN 201210264423 A CN201210264423 A CN 201210264423A CN 102821043 B CN102821043 B CN 102821043B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
- H04L47/263—Rate modification at the source after receiving feedback
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Abstract
The invention discloses a control method and device. The method comprises the stepsthat: a link layer returns an NACK (negative acknowledgement) message to a sending end when receiving an error message in a receiving direction and initiates a retransmission order, and an intermediate layer triggers a retransmission counter to add an value by 1; when the retransmission times of the same message are less than or equal to the preset retransmission times, the retransmission counter is triggered for reset; and when the retransmission times of the same message are greater than the preset retransmission times, a bottom physical layer is triggered for reset. With the adoption of the technical scheme, the data transmission stability and reliability can be effectively ensured, system resources can be reliably and effectively used, and the control method and device have a very high application value in a high-end server system.
Description
Technical field
Data transmission control technology of the present invention, is specifically related to a kind of control method and device.
Background technology
Along with the develop rapidly of computer technology and integrated circuit technique, huge data calculate and data analysis, and the message areas such as complicated pattern analysis and science budget require high to the Performance And Reliability of server system.In order to meet the needs of the highly reliable server system development of high-performance, the data transportation requirements of high bandwidth and the requirement of highly reliable data transmission capabilities are the essential characteristics of server system.
In correlation technique, the transmission of data message as shown in Figure 1, as shown in Figure 1, still not to the controlling mechanism of data-message transmission, and the control of data-message transmission greatly can improve the reliability of system, therefore provide a kind of mechanism that can control the transmission of data message very important.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of control method and device, to improve the reliability of transfer of data.
In order to solve the problem, embodiments provide a kind of control method, comprising, link layer, when receive direction receives error message, returns NACK message to transmitting terminal, and concurrent re-transmission, is characterized in that:
The value of intermediate layer trigger re-transmissions counter adds 1; When same message retransmission number of times is less than or equal to default number of retransmissions value, triggers described retransmission counter and reset; When the number of retransmissions of same message is greater than default described number of retransmissions value, trigger the Phy reset of bottom.
Alternatively, this control method also comprises:
Described in described link layer triggers, Phy reset is once, and described physical layer controls its Self-resetting counter and adds 1, when the Self-resetting number of times of described physical layer be greater than default Self-resetting time numerical value also non-message transmission success time, triggering system integral reset; When the described Self-resetting number of times of described physical layer be less than or equal to default described Self-resetting time numerical value and message transmission success time, trigger described Self-resetting counter resets.
Alternatively, this control method also comprises:
When the number of retransmissions of same message is greater than default described number of retransmissions value, trigger link transmitting scene controls, and preserves present data transmission scene; Once, described physical layer controls its external reset counter and adds 1 link transmission scenery control described in described link layer triggers, when the value of described external counter is greater than default count value, and triggering system integral reset.
Alternatively, once, described physical layer controls the step that its external reset counter adds 1 and comprises described link layer triggers link transmission scenery control:
When the same message of system transfers occurs to retransmit the described Phy reset of triggering, the described external reset counter of described physical layer adds 1, when the transmission again of this message after the success of described Phy reset still make a mistake again trigger described Phy reset time, the described external reset counter of described physical layer adds 1 again.
Alternatively, this control method also comprises:
While triggering system integral reset, system available resources are taked to demote and/or link degradation operation.
The embodiment of the present invention additionally provides a kind of control device, it is characterized in that, this control device comprises judge module and trigger module, wherein:
Described judge module is arranged to: judge whether link layer initiates to retransmit; Also judge whether same message retransmission number of times is less than or equal to default number of retransmissions value;
Described trigger module is arranged to: when described judge module judges that described link layer initiates to retransmit, the value triggering the retransmission counter in intermediate layer adds 1; When described judge module judges that same message retransmission number of times is less than or equal to default number of retransmissions value, trigger described retransmission counter and reset; When described judge module judges that the number of retransmissions of same message is greater than default described number of retransmissions value, trigger the Phy reset of bottom.
Alternatively, this control device also comprises control module, wherein:
Described control module is arranged to: described in described link layer triggers, Phy reset once, and the Self-resetting counter controlling described physical layer adds 1;
Described judge module is also arranged to: whether message transmission is successful in the Self-resetting time numerical value preset for described physical layer;
Described trigger module is also arranged to: when described judge module judge the Self-resetting number of times of described physical layer be greater than default Self-resetting time numerical value also non-message transmission success time, triggering system integral reset; When described judge module judge the described Self-resetting number of times of described physical layer be less than or equal to default described Self-resetting time numerical value and message transmission success time, trigger described Self-resetting counter resets.
Alternatively, described trigger module is also arranged to: when described judge module judges that the number of retransmissions of same message is greater than default described number of retransmissions value, and trigger link transmitting scene controls;
Described control module is also arranged to: once, the external reset counter controlling described physical layer adds 1 to link transmission scenery control described in described link layer triggers;
Described judge module is also arranged to: judge whether the value of described external counter is greater than default count value;
Described trigger module is also arranged to: when described judge module judges that the value of described external counter is greater than default count value, triggering system integral reset.
Alternatively, the external reset counter that described control module is also arranged to control in such a way described physical layer adds 1:
When the same message of system transfers occurs to retransmit the described Phy reset of triggering, the described external reset counter controlling described physical layer adds 1, when the transmission again of this message after the success of described Phy reset still make a mistake again trigger described Phy reset time, the described external reset counter controlling described physical layer adds 1 again.
Alternatively, this device also comprises operational module, wherein:
Described operational module is arranged to: while described trigger module triggering system integral reset, takes system available resources to demote and/or link degradation operation.
The multi-level data transfer control method of the embodiment of the present invention and device effectively ensure that the Stability and dependability of transfer of data, also achieve the reliable of system resource simultaneously and effectively utilize, in high-end server system, have high using value.
Accompanying drawing explanation
Fig. 1 is the data transmission method in correlation technique;
The schematic diagram of Fig. 2 application example of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
It should be noted that, if do not conflicted, each feature in the embodiment of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Embodiments provide a kind of control method, comprise, link layer, when receive direction receives error message, returns NACK message to transmitting terminal, and concurrent re-transmission, is characterized in that:
Intermediate layer adds 1 via the value of the retransmission counter decision logic trigger re-transmissions counter of described link layer; When same message retransmission number of times is less than or equal to default number of retransmissions value, triggers described retransmission counter and reset; When the number of retransmissions of same message is greater than default described number of retransmissions value, trigger the Phy reset of bottom.
This technological means realizes decision logic in order to judge trigger fault Phy reset while adopting conventional link layer message transmissions Retransmission control mechanism control data-message transmission.
Alternatively, this control method also comprises:
The described retransmission counter decision logic of described link layer triggers described Phy reset once, the Self-resetting decision logic of described physical layer controls its Self-resetting counter and adds 1, when the Self-resetting number of times of described physical layer be greater than default Self-resetting time numerical value also non-message transmission success time, triggering system integral reset; When the described Self-resetting number of times of described physical layer be less than or equal to default described Self-resetting time numerical value and message transmission success time, trigger described Self-resetting counter resets.
This technological means achieves physical layer continuous several times and to reset unsuccessful judgement, thus triggering system resets, and system resource is demoted and uses, improve reliability.
Alternatively, this control method also comprises:
When the number of retransmissions of same message is greater than default described number of retransmissions value, trigger link transmitting scene controls, and preserves present data transmission scene; The retransmission counter decision logic of described link layer triggers described link transmission scenery control once, the external reset decision logic of described physical layer controls its external reset counter and adds 1, when the value of described external counter is greater than default count value, triggering system integral reset.
This technological means achieves because same message retransmission mistake causes the judgement of bottom Phy reset number of times, thus triggering system resets, and system resource is demoted and uses, improve reliability.
Alternatively, the retransmission counter decision logic trigger link transmitting scene of described link layer controls once, and the external reset decision logic of described physical layer controls the step that its external reset counter adds 1 and comprises:
When the same message of system transfers occurs to retransmit the described Phy reset of triggering, the described external reset counter of described physical layer adds 1, when the transmission again of this message after the success of described Phy reset still make a mistake again trigger described Phy reset time, the described external reset counter of described physical layer adds 1 again.
Alternatively, this control method also comprises:
While triggering system integral reset, system available resources are taked to demote and/or link degradation operation.
Above-mentioned retransmission counter decision logic, Self-resetting decision logic and external reset decision logic all belong to prior art, do not repeat them here.
The embodiment of the present invention additionally provides a kind of control device, it is characterized in that, this control device comprises judge module and trigger module, wherein:
Described judge module is arranged to: judge whether link layer initiates to retransmit; Also judge whether same message retransmission number of times is less than or equal to default number of retransmissions value;
Described trigger module is arranged to: when described judge module judges that described link layer initiates to retransmit, the value triggering the retransmission counter in intermediate layer adds 1; When described judge module judges that same message retransmission number of times is less than or equal to default number of retransmissions value, trigger described retransmission counter and reset; When described judge module judges that the number of retransmissions of same message is greater than default described number of retransmissions value, trigger the Phy reset of bottom.
Alternatively, this control device also comprises control module, wherein:
Described control module is arranged to: described in described link layer triggers, Phy reset once, and the Self-resetting counter controlling described physical layer adds 1;
Described judge module is also arranged to: whether message transmission is successful in the Self-resetting time numerical value preset for described physical layer;
Described trigger module is also arranged to: when described judge module judge the Self-resetting number of times of described physical layer be greater than default Self-resetting time numerical value also non-message transmission success time, triggering system integral reset; When described judge module judge the described Self-resetting number of times of described physical layer be less than or equal to default described Self-resetting time numerical value and message transmission success time, trigger described Self-resetting counter resets.
Alternatively, this control method also comprises:
Described trigger module is also arranged to: when described judge module judges that the number of retransmissions of same message is greater than default described number of retransmissions value, and trigger link transmitting scene controls;
In this technological means, when triggering Phy reset, transmitting scene control logic preserves the scene of message transmissions mistake, in order to again to recover message retransmission.
Described control module is also arranged to: once, the external reset counter controlling described physical layer adds 1 to link transmission scenery control described in described link layer triggers;
Described judge module is also arranged to: judge whether the value of described external counter is greater than default count value;
Described trigger module is also arranged to: when described judge module judges that the value of described external counter is greater than default count value, triggering system integral reset.
Alternatively, the external reset counter that described control module is also arranged to control in such a way described physical layer adds 1:
When the same message of system transfers occurs to retransmit the described Phy reset of triggering, the described external reset counter controlling described physical layer adds 1, when the transmission again of this message after the success of described Phy reset still make a mistake again trigger described Phy reset time, the described external reset counter controlling described physical layer adds 1 again.
Alternatively, this device also comprises operational module, wherein:
Described operational module is arranged to: while described trigger module triggering system integral reset, takes system available resources to demote and/or link degradation operation.
In a word, a kind of control method of the embodiment of the present invention and device, main consideration high-end server system is to system data transmission bandwidth and reliability transmission requirement, conventional data transmission link layer method for designing and message retransmission administrative mechanism is adopted to realize link data transfer management, design link layer retransmission counter decision logic simultaneously, reset for decision condition triggers bottom physical layer logic with message transmissions extent of error.When the error of transmission re-transmission degree of same message reaches certain limit, transmitting scene control logic is started working, and in order to preserve current system link packet transmitting scene, triggers bottom Phy reset simultaneously.Because of the limitation of bottom link design and signal transmission quality, the initialization of bottom Phy reset may be able to not once complete, therefore physical layer Self-resetting counter and decision logic is designed, when its reset fault degree reaches certain limit, namely triggering system resets and adopts system resource degradation to use.And when Phy reset success; still to there is this message retransmission in system link transfer of data unsuccessful when protection scene restarts; then again trigger bottom Phy reset; the physical layer external reset counter that repeatedly makes repeatedly adds up; when its decision logic failure judgement degree reaches certain amount, triggering system resets and adopts system resource degradation to use.
Be illustrated further by an application example of the present invention below.
This application example as shown in Figure 2, link layer adopts conventional design method to realize transmitting-receiving and the retransmission mechanism of data message, then ACK message is returned to transmitting terminal when receive direction receives correct message, then NACK message is returned to transmitting terminal when receive direction receives error message, concurrent re-transmission.
Intermediate layer is via retransmission counter decision logic trigger re-transmissions counter resets or add " 1 ", when same message retransmission number of times is less than or equal to default number of retransmissions value M, decision logic trigger re-transmissions counter resets, when same message retransmission number of times is greater than described M, decision logic trigger link transmitting scene control logic, preserve present data transmission scene, trigger bottom Phy reset simultaneously.
Physical layer Self-resetting decision logic controls Self-resetting counter and adds " 1 " operation, when link layer retransmission counter decision logic triggers bottom Phy reset, the number of resets of physical layer be greater than default Self-resetting time numerical value R also unsuccessful time, i.e. triggering system integral reset, and take the measures such as system available resources degradation, link degradation; When Phy reset number of times be less than or equal to described R namely success time, then trigger Self-resetting counter resets.
Physical layer external reset decision logic controls external reset counter and adds " 1 " operation, when the same message of system transfers occurs to retransmit triggering Phy reset, physical layer external reset counter adds " 1 ", when after Phy reset success, the transmission again of this message still makes a mistake and triggers Phy reset, physical layer external reset counter adds " 1 " again, when physical layer external reset counter is greater than default count value N, then triggering system integral reset, and take the measures such as system available resources degradation, link degradation.
In technique scheme, retransmission counter decision logic, mainly refer in link layer same message transmissions erroneous retransmissions mechanism control process, when number of retransmissions is less than or equal to described M and transmits correct, flip-flop number resets clear " 0 ", when same message retransmission number of times is greater than M, the reset triggering bottom physical layer controls; Transmitting scene control logic, mainly refers to when triggering bottom Phy reset, transmitting scene control logic saved system link transmission scene, and the sequence number of record current erroneous message transmission, preserves and retransmit BUFFER pointer position; Physical layer Self-resetting decision logic, mainly refers to whether the number of resets judging physical layer in Phy reset process reaches the limit of system requirements, when reach the full quota R time Self-resetting decision logic triggering system reset, make system resource adopt degradation to use; Physical layer external reset decision logic, when the error of transmission mainly referring to when same message causes multiple physical layer reset operation, when multiple physical layer reset operation reaches the limit N of system requirements, triggering system resets, and makes system resource adopt degradation to use.
This multi-level data transfer control method effectively ensure that the Stability and dependability of transfer of data, also achieves the reliable of system resource simultaneously and effectively utilizes, in high-end server system, have high using value.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to claim of the present invention.
Claims (8)
1. a control method, comprises, and link layer, when receive direction receives error message, returns NACK message to transmitting terminal, and concurrent re-transmission, is characterized in that:
The value of intermediate layer trigger re-transmissions counter adds 1; When same message retransmission number of times is less than or equal to default number of retransmissions value and message transmission success time, trigger described retransmission counter reset; When the number of retransmissions of same message is greater than default described number of retransmissions value, trigger the Phy reset of bottom;
Described in described link layer triggers, Phy reset is once, and described physical layer controls its Self-resetting counter and adds 1, when the Self-resetting number of times of described physical layer be greater than default Self-resetting time numerical value also non-message transmission success time, triggering system integral reset; When the described Self-resetting number of times of described physical layer is less than or equal to default described Self-resetting time numerical value and message transmission success time, trigger described Self-resetting counter resets.
2. control method as claimed in claim 1, it is characterized in that, this control method also comprises:
When the number of retransmissions of same message is greater than default described number of retransmissions value, trigger link transmitting scene controls, and preserves present data transmission scene; Once, described physical layer controls its external reset counter and adds 1 link transmission scenery control described in described link layer triggers, when the value of described external counter is greater than default count value, and triggering system integral reset.
3. control method as claimed in claim 2, is characterized in that, once, described physical layer controls the step that its external reset counter adds 1 and comprises described link layer triggers link transmission scenery control:
When the same message of system transfers occurs to retransmit the described Phy reset of triggering, the described external reset counter of described physical layer adds 1, when the transmission again of this message after the success of described Phy reset still make a mistake again trigger described Phy reset time, the described external reset counter of described physical layer adds 1 again.
4. control method as claimed in claim 1 or 2, it is characterized in that, this control method also comprises:
While triggering system integral reset, system available resources are taked to demote and/or link degradation operation.
5. a control device, is characterized in that, this control device comprises judge module and trigger module, wherein:
Described judge module is arranged to: judge whether link layer initiates to retransmit; Also judge whether same message retransmission number of times is less than or equal to default number of retransmissions value;
Described trigger module is arranged to: when described judge module judges that described link layer initiates to retransmit, the value triggering the retransmission counter in intermediate layer adds 1; When described judge module judges that same message retransmission number of times is less than or equal to default number of retransmissions value and message transmission success time, trigger described retransmission counter and reset; When described judge module judges that the number of retransmissions of same message is greater than default described number of retransmissions value, trigger the Phy reset of bottom;
This control device also comprises control module, wherein:
Described control module is arranged to: described in described link layer triggers, Phy reset once, and the Self-resetting counter controlling described physical layer adds 1;
Described judge module is also arranged to: whether message transmission is successful in the Self-resetting time numerical value preset for described physical layer;
Described trigger module is also arranged to: when described judge module judge the Self-resetting number of times of described physical layer be greater than default Self-resetting time numerical value also non-message transmission success time, triggering system integral reset; When described judge module judges that the described Self-resetting number of times of described physical layer is less than or equal to default described Self-resetting time numerical value and message transmission success time, trigger described Self-resetting counter resets.
6. control device as claimed in claim 5, is characterized in that:
Described trigger module is also arranged to: when described judge module judges that the number of retransmissions of same message is greater than default described number of retransmissions value, and trigger link transmitting scene controls;
Described control module is also arranged to: once, the external reset counter controlling described physical layer adds 1 to link transmission scenery control described in described link layer triggers;
Described judge module is also arranged to: judge whether the value of described external counter is greater than default count value;
Described trigger module is also arranged to: when described judge module judges that the value of described external counter is greater than default count value, triggering system integral reset.
7. control device as claimed in claim 6, it is characterized in that, the external reset counter that described control module is also arranged to control in such a way described physical layer adds 1:
When the same message of system transfers occurs to retransmit the described Phy reset of triggering, the described external reset counter controlling described physical layer adds 1, when the transmission again of this message after the success of described Phy reset still make a mistake again trigger described Phy reset time, the described external reset counter controlling described physical layer adds 1 again.
8. the control device as described in claim 5 or 6, is characterized in that, this device also comprises operational module, wherein:
Described operational module is arranged to: while described trigger module triggering system integral reset, takes system available resources to demote and/or link degradation operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210264423.5A CN102821043B (en) | 2012-07-27 | 2012-07-27 | Control method and device |
| PCT/CN2013/070187 WO2014015662A2 (en) | 2012-07-27 | 2013-01-08 | Control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210264423.5A CN102821043B (en) | 2012-07-27 | 2012-07-27 | Control method and device |
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| CN102821043A CN102821043A (en) | 2012-12-12 |
| CN102821043B true CN102821043B (en) | 2015-06-17 |
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| CN103209063A (en) * | 2013-04-23 | 2013-07-17 | 浪潮电子信息产业股份有限公司 | Method for designing chip-level data transmission reliability |
| CN108513724B (en) * | 2018-01-12 | 2022-09-09 | 北京小米移动软件有限公司 | Data transmission method and device and data sending end |
| CN112422239B (en) * | 2020-11-17 | 2022-11-01 | 展讯半导体(成都)有限公司 | Communication processing method, device, apparatus and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0964890A (en) * | 1995-08-28 | 1997-03-07 | Matsushita Electric Works Ltd | Network concentrator |
| CN1852076A (en) * | 2005-12-31 | 2006-10-25 | 华为技术有限公司 | Data retransmitting method |
| CN1929446A (en) * | 2006-10-20 | 2007-03-14 | 中兴通讯股份有限公司 | Fast detecting method for transmission abnormality of wireless LAN IP multicast |
| CN101132260A (en) * | 2006-08-22 | 2008-02-27 | 中兴通讯股份有限公司 | Retransmission control method for reinforcing uplink asynchronous mixed automatic retransmission request |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE369674T1 (en) * | 2001-05-14 | 2007-08-15 | Lg Electronics Inc | METHOD FOR CONTROLLING DATA TRANSMISSION IN A RADIO COMMUNICATIONS SYSTEM |
| US7797723B2 (en) * | 2004-10-30 | 2010-09-14 | Sharp Laboratories Of America, Inc. | Packet scheduling for video transmission with sender queue control |
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- 2012-07-27 CN CN201210264423.5A patent/CN102821043B/en active Active
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- 2013-01-08 WO PCT/CN2013/070187 patent/WO2014015662A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0964890A (en) * | 1995-08-28 | 1997-03-07 | Matsushita Electric Works Ltd | Network concentrator |
| CN1852076A (en) * | 2005-12-31 | 2006-10-25 | 华为技术有限公司 | Data retransmitting method |
| CN101132260A (en) * | 2006-08-22 | 2008-02-27 | 中兴通讯股份有限公司 | Retransmission control method for reinforcing uplink asynchronous mixed automatic retransmission request |
| CN1929446A (en) * | 2006-10-20 | 2007-03-14 | 中兴通讯股份有限公司 | Fast detecting method for transmission abnormality of wireless LAN IP multicast |
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| WO2014015662A2 (en) | 2014-01-30 |
| CN102821043A (en) | 2012-12-12 |
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