CN102508755A - Device and method for simulating interface card hot-plugging - Google Patents
Device and method for simulating interface card hot-plugging Download PDFInfo
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- CN102508755A CN102508755A CN2011102878337A CN201110287833A CN102508755A CN 102508755 A CN102508755 A CN 102508755A CN 2011102878337 A CN2011102878337 A CN 2011102878337A CN 201110287833 A CN201110287833 A CN 201110287833A CN 102508755 A CN102508755 A CN 102508755A
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Abstract
The invention provides a device and a method for simulating interface card hot-plugging. A hot-plugging analog module arranged on a master card is used for timing control of on and off of an interface card, in-place signals when the hot-plugging analog module is in physical hot plugging-in and interrupt signal change when the hot-plugging analog module is in physical hot pulling-out, so that physical hot plugging of the analog interface card is completed, the problem that equipment is easily damaged due to manual repeated physical hot plugging in a physical hot plugging test of a system is avoided, and the problem of extremely high workload on development and test links is solved.
Description
Technical field
The present invention relates to the communication facilities technical field of measurement and test, relate in particular to the apparatus and method of analog interface card hot plug.
Background technology
Along with the expansion rapidly of network size and application, people increase the dependence of network day by day, and the security and the reliability of network also become more and more important, in case the network service is unavailable, the loss that possibly cause is inestimable.The best approach that increases network reliability is to reduce accidental generation of shutting down, and reduces release time after the handling failure (MTTR).Hot plug technology is exactly to improve a kind of method of product reliability.
Hot plug (Hot-plugging or Hot Swap) is meant and allows not shutdown system of user, the integrated circuit board that taking-up and replacing have damaged under the situation of not cutting off the electricity supply, thus the raising system also improves the extensibility and the reliability of system to the timely recovery capability of disaster.
In/large scale computer posture route exchange device generally all adopts modular design, module comprises: main control card (MPU), switching card (SFU), ply-yarn drill (LPU) etc.The many forms with " female card+interface card " of ply-yarn drill design and work at present.Consider factors such as total system energy-conserving and environment-protective and user flexibility standard configuration; Interface card supports the hot plug function in the industry cycle to reach common understanding; Hot plug through the docking port card; Make the user can under the situation that equipment does not cut off the power supply, carry out the insertion of integrated circuit board, extract operation, and can not have influence on the operation of other integrated circuit boards, thus the reliability of raising system.
Hot-plug interface card and female cartoon are crossed data bus and are carried out data communication, and existing data bus divides two kinds, general data bus and special data bus, and wherein, the general data bus supports that violence is hot-swappable; The special data bus like PCIE, needs to interrupt in advance, promptly just can carry out hot-swappable.
The data bus that female card CPU communicates by letter with interface card supports that when carrying out the interface card hot plug, interface card and mother stick into capable hot plug and can directly carry out under the violence hot plug situation, its hot plug be interface card with female the card between electrical connection or cut off the power supply be connected.
The data bus that female card CPU communicates by letter with interface card is not supported the violence hot plug, after using the PCIE bus to carry out the insertion of interface card heat, need block CPU to mother and send simulation signal on the throne, and CPU accomplishes and loads the subsystem driving; As when using the PCIE bus to carry out the interface card hot drawing to go out, need to block CPU to mother in advance and send the simulation look-at-me, CPU accomplishes the unloading subsystem and drives.For mother blocks CPU, do not support the unexpected interruption of data communication process of violence hot plug may cause the deadlock of CPU, thereby cause the collapse of total system.Prior art generally provides driving on the throne or that look-at-me is come the load or unload interface card for female card CPU through means such as setting of connector long and short hands or artificial keyswitches.The connector that utilization is provided with long and short hands provides on the throne or look-at-me is meant: electrically contact or hour hand breaks away from female card prior to minute hand and electrically contacts because the connector minute hand produces prior to hour hand and female card; Can make the signal level on the hour hand can occur changing; When the variation of sort signal level occurring; Female card CPU load or unload subsystem drives; General CPU accomplishes the load or unload time of antithetical phrase system drive in the microsecond level, and the long and short hands of connector is produced or break away from female card electrically contact need time at Millisecond; Utilize artificial keyswitch then to be meant, before interface card physics inserts or extracts, to CPU look-at-me in advance is provided, carry out loading or insertion that subsystem drives through artificial keyswitch.
Because the interface card of route exchange device is supported the hot plug function, in the development of Interfacing Card debug process,, need docking port to stick into row hot plug many times in order to verify the feasibility of interface card hot plug function; In system's system test process,, also need docking port to stick into row hot plug many times in order to verify the reliability of interface card hot plug function.In the prior art; Automated testing method mainly is that testing apparatus is passed through the serial ports connection or Telnet (Telnet) is configured equipment under test; The transmission and the reception of test frame are carried out in the corresponding port of the testing apparatus control data network terminal simultaneously; Message and expected results that data network terminals is received compare, and judge whether the result of test is correct.But existing automatic test can not accomplish the interface card hot plug such relate to interface card insertion/pull action.
Present interface card inserts/extract such action need manually carry out; To cause the workload on exploitation and test link very big; Cost of labor is inestimable; The damage of extracting and inserting interface card operation being prone to cause equipment so repeatedly, the serviceable life of shortening equipment, and automated procedures in the prior art can't realize the such test of artificial plug operation.
Summary of the invention
The invention provides a kind of device and method of analog interface card hot plug, solve the problem that when carrying out interface card hot plug test, need manually insert/extract interface card.
The technological means that the present invention adopts is: a kind of device of analog interface card hot plug; Comprise female card and interface card, said female card includes processor, and said processor is connected with interface card through data bus; It is characterized in that said female card also includes hot-swappable analog module; Wherein, said hot-swappable analog module is used to judge the data bus type between female card and the interface card, and when said data bus was supported the violence hot plug, regularly docking port sticked into capable switch; When said data bus is not supported the violence hot plug; The hot plug analog module is used for; Load the driver of said interface card at said processor after; Send the simulation look-at-me to processor and extract, and docking port sticks into row and closes electricity behind said processor unloading interface card driver with analog interface card, wait for first schedule time of setting after docking port stick into row and open; And after waiting for second schedule time of setting, the hot plug analog module sends simulation signal on the throne to processor and inserts with analog interface card.
Further, said first schedule time is extracted the time more than or equal to interface card physics, and said second schedule time is inserted the time more than or equal to interface card physics.
Further, said hot plug analog module sticks into row through control interface card power enable signal docking port and opens electricity or pass.
Further, said processor is used for after receiving said simulation signal on the throne, loading the driver of said interface card; After receiving the simulation look-at-me, unload the driver of said interface card.
Further, said hot-swappable analog module is a complex programmable logic device (CPLD).
The present invention also provides a kind of method of analog interface card hot plug, comprising:
Step a: judge the data bus type between female card and the interface card; If support the violence hot plug, execution in step b is not if support violence hot plug, execution in step c;
Step b: regularly docking port sticks into capable switch;
Step c: send simulation signal on the throne or simulation look-at-me to processor, and the back docking port sticks into row and opens electricity or close at the fixed time.
Further, also include female card and interface card before the said step a and power on, female card and interface card driver load the preparatory preparation process of accomplishing; And in step c; The hot plug analog module sends the simulation look-at-me to processor and extracts with analog interface card; And docking port sticks into the row pass behind said processor unloading interface card driver; Docking port sticks into row and opens electricity after waiting for first schedule time of setting, and after waiting for second schedule time of setting, the hot plug analog module sends simulation signal on the throne to processor and inserts with analog interface card.
Further, first schedule time was extracted the time more than or equal to interface card physics, and said second schedule time is inserted the time more than or equal to interface card physics.
Further, among the said step c, stick into row through control interface card power enable signal docking port and open electricity or pass.
Further, among the step c, after said processor receives the simulation signal on the throne of hot plug analog module, load the driver of this interface card; After said processor receives the simulation look-at-me of hot plug analog module, unload the driver of this interface card.
A kind of interface card simulation hot plug device provided by the invention and method; Through hot-swappable analog module is set on mother's card; Look-at-me when signal on the throne when utilizing hot-swappable analog module timing controlled interface card switch electricity and analog interface card physics heat to insert and physics hot drawing go out changes; Accomplish the scene of analog interface card physics hot plug; Avoided system carrying out hot plug when test, and solved the very large problem of workload on exploitation and test link because artificial physics hot plug operations repeatedly is prone to cause the problem of device damage.
Description of drawings
The device synoptic diagram of a kind of analog interface card hot plug that Fig. 1 provides for the embodiment of the invention;
The method flow diagram of a kind of analog interface card hot plug that Fig. 2 provides for the embodiment of the invention;
Fig. 3 be in the embodiment of the invention when bus is supported the violence hot plug method of testing process flow diagram;
Fig. 4 be in the embodiment of the invention when bus is not supported the violence hot plug method of testing process flow diagram.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.
As shown in Figure 1, the device of analog interface card hot plug comprises female card and through data bus and female interface card that sticks into row data communication.Female card includes processor CPU and hot-swappable analog module, and like CPLD (Complex Programmable Logic Device, CPLD), said hot plug analog module is connected with interface card through the power enable signal line; Processor is connected with interface card through data bus; Wherein, CPLD is used to judge the data bus type between female card and the interface card, when data bus is supported the violence hot plug, regularly sticks into capable switch through control interface card power enable signal docking port; When data bus is not supported the violence hot plug; After said processor loads the driver of said interface card through shell script; CPLD sends simulation signal on the throne or simulation look-at-me to processor, and the back sticks into row through control interface card power enable signal docking port and opens electricity or close at the fixed time.
Said simulation signal on the throne is that its physics signal on the throne level change information is from high to low realized when being inserted by the CPLD analog interface card; CPLD is communicated to processor with this level change information, and after first schedule time, sticks into capable opening through control interface card power enable signal docking port.Said simulation look-at-me is that its physical discontinuity signal level change information is from low to high realized when being extracted by the CPLD analog interface card; CPLD is communicated to processor with this level change information, and after second schedule time, sticks into the row pass through control interface card power enable signal docking port.Wherein, first schedule time was inserted the time more than or equal to interface card physics, and said second schedule time is extracted the time more than or equal to interface card physics.
The present invention also provides a kind of method of analog interface card hot plug, and is as shown in Figure 2, comprising:
Step a: judge the data bus type between female card and the interface card; If support the violence hot plug, execution in step b is not if support violence hot plug, execution in step c;
Step b: regularly docking port sticks into capable switch;
Step c: when the interface card simulation is inserted; The hot plug analog module sends simulation signal on the throne to processor earlier; And docking port sticks into capable opening after first schedule time; Interface card is simulated when extracting, and the hot plug analog module sends the simulation look-at-me to processor earlier, and docking port sticks into the row pass after second schedule time.Wherein, the said schedule time is extracted the time more than or equal to interface card physics; Stick into row through control interface card power enable signal docking port and open electricity or pass.
Referring to Fig. 3; In the embodiment of the invention; Data bus type between female card of CPLD judgement and the interface card powers at mother's card and interface card if support the violence hot plug, and mother's card and interface card driver load to be accomplished; Ready, carry out the test that following steps realize the analog interface card hot plug through circulation:
Step 1, CPLD stick into row through control interface card power enable signal docking port and close;
Behind step 2, a period of time t1 that wait for to set, CPLD sticks into row through control interface card power enable signal docking port and opens electricity, and the time of closing electricity according to interface card that is provided with of t1 is decided (be interface card power supply drop to time of 0 volt decide);
Step 3, CPLD get into step 1 after waiting for a period of time t2 that sets, and the time that powers on according to interface card that is provided with of t2 is decided (being that the interface card power supply rises to WV from 0 volt).
Referring to Fig. 4; In embodiments of the present invention, the data bus type between female card of judgement and the interface card is not if support to power on the violence hot plug at mother's card and interface card; Female card and interface card power on; Female card and interface card driver load to be accomplished, ready, then carries out the test that following steps realize the analog interface card hot plug through circulation:
Step 1, its physical discontinuity signal level change information was from low to high realized when CPLD analog interface card physics was extracted, and the pseudo-terminal signal is announced to processor;
After step 2, processor receive the simulation look-at-me of hot plug analog module, unload the driver of this interface card;
Step 3, CPLD stick into row through control interface card power enable signal docking port and close electricity after waiting for a period of time ta that sets, and the setting of ta blocks the time of unloading interface card driver based on mother and decides;
Behind step 4, a period of time tb that wait for to set, CPLD sticks into row through control interface card power enable signal docking port and opens electricity, and the time of closing electricity according to interface card that is provided with of tb decides;
Behind a period of time tc that step 5, wait are set; Its physics signal on the throne level change information from high to low when CPLD analog interface card physics inserts; And will simulate signal on the throne and announce to processor, tc be provided with can referenced interface card physics heat time of inserting and deciding, generally at Millisecond;
After step 6, processor receive the simulation signal on the throne of hot plug analog module, load the driver of this interface card;
Step 7, CPLD get into step 1 after waiting for a period of time td that sets, and being provided with according to the time of loading interface card driver of td decided.
Adopt device of the present invention, can simulate the hot insertion of interface card physics back through CPLD and produce the variation of signal level on the throne and the variation that the hot drawing of interface card physics goes out back generation look-at-me level, the effect of simulating hot plug is equal to and artificial physics hot plug fully; And successfully evade the CPU deadlock; And adjustment method is simple, is prone to realize, can simulate artificial hot plug effect fully; Have raising system hot plug testing efficiency, whole day need not be intervened in artificial plug; The interface device loss of reduction system; Reduce requirement simultaneously to test environment, as need not pallet, the dependence of guidepost; Arrive the advantage that reduces the system testing cost.The development& testing of centering/large scale computer posture communication facilities hot-plug board card has very positive meaning.
How to realize between (comprising judgement, control etc.), female Card processor and the interface card for multiple operation among the application how mutual, and concrete mode, those skilled in the art can utilize computer program to realize that this paper repeats no more.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. the device of an analog interface card hot plug comprises female card and interface card, and said female card includes processor, and said processor is connected with interface card through data bus, it is characterized in that, said female card also includes hot-swappable analog module; Wherein, said hot-swappable analog module is used to judge the data bus type between female card and the interface card, and when said data bus was supported the violence hot plug, regularly docking port sticked into capable switch; When said data bus is not supported the violence hot plug; The hot plug analog module is used for; Load the driver of said interface card at said processor after; Send the simulation look-at-me to processor and extract, and docking port sticks into row and closes electricity behind said processor unloading interface card driver with analog interface card, wait for first schedule time of setting after docking port stick into row and open; And after waiting for second schedule time of setting, the hot plug analog module sends simulation signal on the throne to processor and inserts with analog interface card.
2. device according to claim 1 is characterized in that, said first schedule time is extracted the time more than or equal to interface card physics, and said second schedule time is inserted the time more than or equal to interface card physics.
3. device according to claim 1 is characterized in that, said hot plug analog module sticks into row through control interface card power enable signal docking port and opens electricity or pass.
4. device according to claim 1 is characterized in that, said processor is used for after receiving said simulation signal on the throne, loading the driver of said interface card; After receiving the simulation look-at-me, unload the driver of said interface card.
5. according to each described device of claim 1 to 4, it is characterized in that said hot-swappable analog module is a complex programmable logic device (CPLD).
6. the method for an analog interface card hot plug comprises:
Step a: judge the data bus type between female card and the interface card; If support the violence hot plug, execution in step b is not if support violence hot plug, execution in step c;
Step b: regularly docking port sticks into capable switch;
Step c: send simulation signal on the throne or simulation look-at-me to processor, and the back docking port sticks into row and opens electricity or close at the fixed time.
7. method according to claim 6 is characterized in that, also includes female card and interface card before the said step a and powers on, and female card and interface card driver load the preparatory preparation process of accomplishing; And in step c; The hot plug analog module sends the simulation look-at-me to processor and extracts with analog interface card; And docking port sticks into the row pass behind said processor unloading interface card driver; Docking port sticks into row and opens electricity after waiting for first schedule time of setting, and after waiting for second schedule time of setting, the hot plug analog module sends simulation signal on the throne to processor and inserts with analog interface card.
8. method according to claim 7 is characterized in that first schedule time was extracted the time more than or equal to interface card physics, and said second schedule time is inserted the time more than or equal to interface card physics.
9. method according to claim 7 is characterized in that, among the said step c, sticks into row through control interface card power enable signal docking port and opens electricity or pass.
10. method according to claim 7 is characterized in that, among the step c, after said processor receives the simulation signal on the throne of hot plug analog module, loads the driver of this interface card; After said processor receives the simulation look-at-me of hot plug analog module, unload the driver of this interface card.
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| WO2016202040A1 (en) * | 2015-06-17 | 2016-12-22 | 中兴通讯股份有限公司 | Pcie-based sub-card hot plugging method and apparatus |
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| CN109189621A (en) * | 2018-08-20 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of test method and system of NVMe SSD hot plug |
| CN109656852A (en) * | 2018-12-05 | 2019-04-19 | 郑州云海信息技术有限公司 | A kind of SYS_TF card interface connection control method and system |
| CN112526898A (en) * | 2019-09-19 | 2021-03-19 | 恒为科技（上海）股份有限公司 | Serial port line plug detection circuit and embedded equipment |
| CN110990317A (en) * | 2019-10-31 | 2020-04-10 | 苏州浪潮智能科技有限公司 | In-place signal processing method and device during server debugging |
| CN113742276A (en) * | 2021-08-26 | 2021-12-03 | 山东云海国创云计算装备产业创新中心有限公司 | Memory device and connection device and method of BBU (base band Unit) of memory device |
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| CN113900487B (en) * | 2021-10-15 | 2023-06-27 | 北京航天巨恒系统集成技术有限公司 | Board card, computer equipment, board card power-down control method and device |
| WO2023137984A1 (en) * | 2022-01-18 | 2023-07-27 | 苏州浪潮智能科技有限公司 | Method and apparatus for simulating plugging of hard disk, device and storage medium |
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