CN101499045B - Method for implementing hot plug of PCI adapter - Google Patents
Method for implementing hot plug of PCI adapter Download PDFInfo
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- CN101499045B CN101499045B CN200810006855XA CN200810006855A CN101499045B CN 101499045 B CN101499045 B CN 101499045B CN 200810006855X A CN200810006855X A CN 200810006855XA CN 200810006855 A CN200810006855 A CN 200810006855A CN 101499045 B CN101499045 B CN 101499045B
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Abstract
A method that realizes hot-plug of PCI adapter card is applied to a test host computer without hot-plug of PCI adapter card environment. The test host computer has at least two PCI buses, each being connected with a PCI card to be test. The PCI buses are connected with a PCI bridge connector in series. The test host computer, after stores bus code distributed by the PCI bridge connector, disenables the PCI bridge connector and loses power supply in sequence; after changing the PCI card to be test, it recovers power supply of the PCI bridge connector, distributes bus code stored previously to the PCI bridge connector, then enables the PCI bridge connector. Therefore, the test host computer senses that the PCI bridge connector with changed PCI card to be tested has bus code, and works according to the bus code of the PCI bridge connector.
Description
Technical field
The present invention relates to a kind of method of PCI adapter hot plug function, and be particularly related to a kind of environment that the hot plug of PCI adapter is not provided and realize the method that the PCI adapter carries out hot plug down.
Background technology
The periphery part connects adapter product (Peripheral Component Interconnect, the PCI adapter, comprise PCI-Express, PCI-X and mini-PCI or the like) test process, be that a PCI adapter to be tested is inserted in the pci interface slot of a computer installation, this pci interface slot can be accepted the PCI adapter, and utilize a cover testing software that this PCI adapter is carried out all test event (as: performance tests, electrical load test or the like), after treating that this PCI adapter is errorless after tested, just replaceable next PCI adapter and continue to carry out identical test mode.
Yet the operating system of aforementioned calculation machine adopts the window 2000 of US business Microsoft
(Windows 2000
), because window 2000
Operating system do not support the hot plug function of pci interface, under the tester does not shut down computer device and operating system, and when changing the PCI adapter, operating system can't the original employed bus code name of identification PCI adapter, and can't distribute one group of bus code name of new PCI adapter, and mistake just appears in operating system.
Therefore, after the tester tests and pulls out a PCI adapter, just must shut down computer device and operating system, be inserted into next PCI adapter after, just can open computer installation and operating system once more.So, the tester must repeat cost and close and open the computer installation time of (comprising operating system), just can carry out PCI adapter test next time, quite expend test duration and testing cost, and above-mentioned operating system is quite general, when if the dealer uses the operating system that PCI adapter hot plug environment can be provided instead comprehensively, then must spend more money, manpower, time carries out software and buys, change and education and training, for commercial be dealer's best choice absolutely not of purpose, therefore, if can keep the test job of PCI adapter under existing operating system, can overcome above-mentioned inconvenience and shortcoming again, shorten the time and the flow process of test, be dealer institute urgently in the target of solution.
Summary of the invention
The objective of the invention is not provide and realize the method that the PCI adapter carries out hot plug under the environment of PCI adapter hot plug one, close and open the computer installation time of (comprising operating system) to avoid repeating cost, and then save test duration and testing cost.
According to above-mentioned purpose, the method that a kind of PCI of realization adapter of the present invention carries out hot plug, be applied to not provide a Test Host of PCI adapter hot plug environment, Test Host has the pci bus more than two, interconnect by a PCI bridge respectively between those pci buss, those pci buss can be for connecting at least one PCI card to be measured, and the method comprises that (a) stores the assigned bus code name of PCI bridge; (b) make PCI bridge anergy; (c) power supply of cut-out PCI bridge; (d) treat that PCI card to be measured is replaced by another PCI card to be measured after, recover the power supply of PCI bridge; (e) with previous stored bus code name, distribute back the PCI bridge, use so that Test Host to be provided; And (f) make the activation of PCI bridge.
Another embodiment of the present invention is the method that a kind of PCI of realization adapter carries out hot plug, be applied to a Test Host that PCI adapter hot plug environment is not provided, Test Host has at least three rank pci buss, appoint between the second order pci bus and form series connection by a PCI bridge, each pci bus can be for connecting at least one PCI card to be measured, and the method comprises the bus code name that each later PCI bridge of (a) record second rank pci bus is distributed; (b) make all PCI bridge anergies; (c) cut off the power supply of the later PCI bridge of the second rank pci bus; (d) treat that PCI card to be measured is replaced after, recover the power supply of the later PCI bridge of the second rank pci bus; (e) the later PCI bridge of the second rank pci bus is detected, and when detecting the PCI bridge, distributed corresponding bus code name, be assigned with till the bus code name finishes up to all PCI bridges; And (f) make all PCI bridge activations.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
The connection diagram of each assembly in the Test Host of Fig. 1 first embodiment of the invention;
The pci bus distribution diagram of the Test Host of Fig. 2 second embodiment of the invention;
The last stage process flow diagram of Fig. 3 second embodiment of the invention;
The after-stage process flow diagram of Fig. 4 second embodiment of the invention;
The thin portion process flow diagram of the step 303 of Fig. 5 second embodiment of the invention.
Wherein, Reference numeral
1: Test Host
11: operating system
12: CPU (central processing unit)
The 13:PCI bus
The 14:PCI bridge
15:PCI interface slot
16:PCI card to be measured
17: the bus code name
18: the configuration poll code
19: storage device
20: switch module
201-207: step
301-304: step
3031-3035: step
Embodiment
The present invention discloses the method that a kind of PCI of realization adapter carries out hot plug, in one first embodiment, ask for an interview shown in Figure 1, the connection diagram of each assembly in the Test Host of first embodiment of the invention.The method is applied to carry out on the Test Host 1 of PCI adapter test procedure, and this Test Host 1 adopts the operating system 11 (as: window 2000 that US business Microsoft produces that PCI adapter hot plug environment is not provided
, window XP
Deng), and has CPU (central processing unit) 12 in hardware aspect, at least two pci buss 13 (PCIbus), PCI bridge 14 (PCI Bridge), the card to be measured 16 of pci interface slot 15 (PCI Slot) and pci interface, card 16 wherein to be measured can be for being inserted in wherein on the pci interface slot 15, pci interface slot 15 is connected on arbitrary pci bus 13, wherein a pci bus 13 is connected with this CPU (central processing unit) 12, and wantonly two adjacent pci buss 13 thus PCI bridge 14 interconnect, remaining pci bus 13 PCI bridge 14 thus is connected with CPU (central processing unit) 12.
When Test Host 1 start and after starting this operating system 11, can distribute one group of bus code name, 17 to PCI bridges 14, for the usefulness of CPU (central processing unit) 12 identifications itself and card to be measured 16 subsequent transmission data.Wherein CPU (central processing unit) 12 will make above-mentioned PCI bridge 14 assigned bus code names 17 and be recorded to PCI bridge 14 one the configuration poll code 18 in (PCI-to-PCI Bridge Configurationregisters), this group bus code name 17 is respectively a main rank bus code name (primary bus number) and can represents this PCI bridge 14 itself to be positioned at the position of pci bus 13, following single order pci bus 13 positions of these PCI bridge 14 positions own can be represented in a rank bus code name (secondary bus number), and a last rank bus code name (subordinate bus number), can represent behind these PCI bridge 14 positions own pci bus 13 positions on last rank.
Card to be measured 16 tested finishing on pci interface slot 15, and when desiring to carry out the hot plug function, needn't as tradition, close Test Host 1 and operating system 11, and at first make CPU (central processing unit) 12 that PCI bridge 14 these assigned group bus code names 17 (are comprised main rank bus code name, inferior rank bus code name and last rank bus code name) be recorded to a storage device 19 (as: internal memory etc.), then, carry out these PCI bridge 14 anergies (disable) and cut off the work of power supply (power off), PCI bridge 14 just loses the bus code name 17 in the configuration poll code 18 at this moment, so just can still move another card 16 to be measured of replacing down in this Test Host 1 and operating system 11.
Card to be measured 16 on pci interface slot 15 carries out the hot plug function, and after changing another card 16 to be measured, then just make CPU (central processing unit) 12 reply the power supply (power on) of this PCI bridge 14, and after detecting this PCI bridge 14, distribute previous stored this group bus code name 17 so far in the configuration poll code 18 of PCI bridge 14, make PCI bridge 14 have previous bus code name 17, afterwards, carry out the work of PCI bridge 14 activations again, so, detect the PCI bridge 14 of activation once more when the operating system 11 of Test Host 1, and when the PCI bridge 14 of detecting its corresponding new card 16 to be measured has been assigned bus code name 17, just distribution bus code name voluntarily not, and can carry out work according to the bus code name 17 of this PCI bridge 14.
In addition, when Test Host 1 has a large amount of pci bus 13, the resources allocation of these a little pci buss 13 is hierarchy type, please see shown in Figure 2 simultaneously, the pci bus distribution diagram of the Test Host of Fig. 2 second embodiment of the invention, have three rank (i at least, ii and iii) pci bus more than 13, (this second embodiment be example with five rank) appoints between the second order pci bus 13 and forms series connection by a PCI bridge 14, wherein first rank (i) pci bus 13 is connected with CPU (central processing unit) 12, make second rank (ii) all the other pci buss 13 after the pci bus 13 by first, second order (i, the ii) PCI bridge A between the pci bus 13 and being connected with CPU (central processing unit) 12, and PCI bridge A and second, three rank (ii, iii) among the pci bus B between the pci bus 13, be provided with and one can break/switch module 20 (switch) (seeing Fig. 1 again) of open circuit, wherein this Test Host 1 has 7 different pci buss 13 (in regular turn for Bus 0, Bus 14, Bus 15, Bus 16,18 and Bus 17,19), totally 5 rank (i, ii, iii, iv reaches v), 6 PCI bridge (A, B, C, D, E and F) and connect 2 network cards to be measured 1,2.
Wherein first rank (i) the pci bus Bus 0 and second rank (ii) are connected with PCI bridge A between the pci bus Bus 14, second rank (ii) pci bus Bus 14 and the 3rd rank (iii) are connected with PCI bridge B between the pci bus Bus 15, the 3rd rank (iii) pci bus Bus 15 respectively and quadravalence (iv) be connected with PCI bridge C between the pci bus Bus 16, and be connected with PCI bridge E between the quadravalence pci bus Bus 18, (iv) (v) be connected with PCI bridge D between the pci bus Bus 17, quadravalence (iv) pci bus Bus 18 and the 5th rank (v) is connected with PCI bridge F to quadravalence PCI between the pci bus Bus 19 bus B us 16 and the 5th rank.And network card 1 is connected on the pci bus Bus 17, and network card 2 is connected on the pci bus Bus 19.
When network card 1,2 tested finishing, and desire is changed respectively before another network card to be measured, this embodiment can be subdivided into for two detailed stages, as Fig. 3, last stage is for changing another network card variety of steps before, as Fig. 4, after-stage is for changing another network card variety of steps afterwards, and Test Host carries out the last stage according to the following step:
Step (201) stores each PCI bridge B, C, D, E and the assigned bus code name 17 of F:
When this Test Host 1 is started shooting and its operating system 11 when being activated, CPU (central processing unit) 12 can be according to each PCI bridge A, B, C, D, E and F pairing pci bus Bus 0,14,15,16,17,18 and 19 out of the ordinary, and distribute main rank bus code name, inferior rank bus code name and the last rank bus code name of each PCI bridge A, B, C, D, E and F, so among the embodiment, the main rank bus code name of PCI bridge A/time rank bus code name/last rank bus code name is respectively 0/14/19; The main rank bus code name of PCI bridge B/time rank bus code name/last rank bus code name is respectively 14/15/19; The main rank bus code name of PCI bridge C/time rank bus code name/last rank bus code name is respectively 15/16/17; And the main rank bus code name of PCI bridge D/time rank bus code name/last rank bus code name is respectively 16/17/17, and the main rank bus code name of PCI bridge E/time rank bus code name/last rank bus code name is respectively 15/18/19, and the main rank bus code name of PCI bridge F/time rank bus code name/last rank bus code name is respectively 18/19/19.
Afterwards, make this CPU (central processing unit) 12 each PCI bridge B of record, C, D, E and the pairing main rank of F bus code name, inferior rank bus code name and last rank bus code name bus code name again.
Step (202) makes PCI bridge A anergy (disable):
An anergy signal is sent in the wherein pin position of 12 pairs of PCI bridges of this CPU (central processing unit) A, make PCI bridge A therefore be closed, and because other PCI bridge B, C, D, E and F all are positioned at second rank (ii) after the pci bus (being pci bus bus 14), therefore, when PCI bridge A was closed, therefore other PCI bridge B, C, D, E and F also can't act on;
Step (203) unloads the driver of each network card 1,2 respectively:
For protecting the state of each network card 1,2 after hot plug, specially before hot plug, close the driver of each network card 1,2, make each network card 1,2 lose its function.
Step (204) is cut off the power supply of each PCI bridge B, C, D, E and F:
Among this embodiment, after this Test Host 1 receives the instruction of the power supply that cuts off each PCI bridge B, C, D, E and F, CPU (central processing unit) 12 just drives these switch module 20 formation and opens circuit, make PCI bridge A can't transmit power supply to PCI bridge B, the rest may be inferred, PCI bridge C, D, E and F also can't obtain power supply, make each PCI bridge B, C, D, E and F lose its main rank bus code name/time rank bus code name/last rank bus code name respectively;
Step (205) is tested each PCI bridge B, C, D, E and F, judges whether to lose really power supply, if then carry out step (206), otherwise return step (204):
For the protection tester in removing the unlikely electric shock in 1,2 o'clock of each network card respectively, and protect each network card 1,2, must determine that each PCI bridge B, C, D, E and F lose power supply really.
Step (206) is notified the operating system 11 of this Test Host 1, upgrades each network card 1,2 adiaphorous state:
The instruction that this step can rearrange makes operating system 11 scan each network card 1,2 again, when operating system 11 can't be detected each network card 1,2, shows that then not had each network card 1,2 exists;
Step (207) shows the information of a replaceable network card, to inform the opportunity of tester's card changeable.
After the tester is inserted in a pci interface slot 15 respectively with each another network card, and can begin to carry out after-stage, see Fig. 4, Test Host carries out after-stage according to the following step:
Step (301) is recovered the power supply of PCI bridge B, C, D, E and F:
Among this embodiment, after Test Host 1 receives the instruction of the power supply that recovers each PCI bridge B, C, D, E and F, this CPU (central processing unit) 12 just drives this switch module 20 and forms path, makes PCI bridge A can transmit power supply once again to PCI bridge B, C, D, E and F;
Step (302) is tested each PCI bridge B, C, D, E and F, judges whether to recover really power supply, if then carry out step (303), otherwise return step (301):
Step (303) is detected each PCI bridge B, C, D, E and F in regular turn, and when detecting PCI bridge B, C, D, E and F, according to previous stored bus code name 17, be dispensed to PCI bridge B, C, D, E and F accordingly, till all PCI bridge B, C, D, E and F are detected and be assigned with corresponding bus code name 17;
Though PCI bridge B, C, D, E and F just have been resumed power supply, but, be not reallocated one group of bus code name 17, therefore, the bus code name 17 that Test Host 1 must before store PCI bridge B, C, D, E and F distributes in regular turn and goes back the thin portion process flow diagram of the step 303 of Fig. 5 second embodiment of the invention.The thin portion step of step (303) is:
Step (3031) is distributed back PCI bridge B with previous bus code name 17:
Test Host 1 only can detect PCI bridge B by PCI bridge A, therefore, Test Host 1 just PCI bridge B had before been stored bus code name 17 distribute and give PCI bridge B, make that the main rank bus code name/time rank bus code name/last rank bus code name in the configuration poll code 18 of PCI bridge B is respectively 14/15/19.
Step (3032) judges whether to detect any PCI bridge C, D, E or F according to the bus code name 17 of PCI bridge B, if, then carry out step (3033), otherwise, carry out step (3031).
At this moment, if the bus code name 17 of PCI bridge B is correct, Test Host 1 just can detect PCI bridge C and E on the pci bus Bus 15 by PCI bridge B, otherwise, represent the bus code name 17 of PCI bridge B mistake to occur, after must reexamining the bus code name 17 of PCI bridge B, divide 17 to join back PCI bridge B correct bus code name.
Step (3033) is distributed back PCI bridge C and E with previous bus code name 17:
Test Host 1 again PCI bridge C and E had before been stored the bus code name give PCI bridge C and E 17 out of the ordinary distribution, make that the main rank bus code name/time rank bus code name/last rank bus code name in the configuration poll code 18 of PCI bridge C and E is respectively 15/16/17 and 15/18/19.
Step (3034) judges whether to detect any PCI bridge D or F in regular turn according to the bus code name 17 of PCI bridge C and E, if, then carry out step (3035), otherwise, carry out step (3033).
Similarly, if the bus code name 17 of PCI bridge C or E is correct, Test Host 1 then just can be detected PCI bridge D, be detected PCI bridge F by PCI bridge E by PCI bridge C, otherwise, represent the bus code name 17 of PCI bridge C or E mistake to occur, after must reexamining the bus code name 17 of PCI bridge C or E, correct bus code name 17 is distributed back PCI bridge C or E.
Step (3035) is distributed back PCI bridge D and F with previous bus code name 17:
Test Host 1 again PCI bridge D and F had before been stored the bus code name give PCI bridge D and F 17 out of the ordinary distribution, make that the main rank bus code name/time rank bus code name/last rank bus code name in the configuration poll code 18 of PCI bridge D and F is respectively 16/17/17 and 18/19/19.
So, each PCI bridge B, C, D, E and F just can obtain original bus code name in regular turn, and the access of carrying out data between Test Host 1 and each another network card can be provided.
Step (304) makes PCI bridge A activation:
An activation signal is sent in the wherein pin position of 1 pair of PCI bridge of this Test Host A, make PCI bridge A therefore be activated, and since other PCI bridge B, C, D, E and F rely on PCI bridge A therewith the CPU (central processing unit) 12 in the Test Host 1 connect, so other PCI bridge B, C, D, E and F also and then are activated.
So, the operating system 11 of Test Host 1 detects after PCI bridge A, B, C, D, E and F all be enabled, just check whether PCI bridge B, C, D, E and F have been assigned bus code name 17, when operating system 11 is checked through PCI bridge B, C, D, E and F and has been assigned separately bus code name 17, operating system 11 is distribution bus code name voluntarily not just, and can carry out work according to this PCI bridge B, C, D, E and F bus code name 17 separately.
Because the operating system that Test Host adopts is not supported PCI adapter hot plug environment, so, the present invention can save the time that repeats to close and open twice of computer installation and operating system, and then saves test duration and testing cost, promotes testing efficiency.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. realize that the PCI adapter carries out the method for hot plug for one kind, be applied to a Test Host, this Test Host has one does not provide the operating system of PCI adapter hot plug environment to reach at least two pci buss, interconnect by a PCI bridge respectively between those pci buss, those pci buss can be for connecting at least one PCI card to be measured, it is characterized in that this method comprises:
(a) store one group of assigned bus code name of this PCI bridge;
(b) make this PCI bridge anergy;
(c) cut off the power supply of this PCI bridge;
(d) treat that this PCI card to be measured is replaced by another PCI card to be measured after, recover the power supply of this PCI bridge;
(e) this group bus code name that will be before stored distributes and gives this PCI bridge, uses so that this Test Host to be provided; And
(f) make this PCI bridge activation.
2. the method that realization PCI adapter according to claim 1 carries out hot plug, it is characterized in that, the assigned bus code name of this PCI bridge comprises a main rank bus code name, rank bus code name and a last rank bus code name in this step (a), and is recorded to a storage device respectively.
3. the method that realization PCI adapter according to claim 2 carries out hot plug is characterized in that, this group bus code name that will be before stored in this step (e) distributes and gives before this PCI bridge, and this Test Host need detect this PCI bridge.
4. realize that the PCI adapter carries out the method for hot plug for one kind, be applied to a Test Host, this Test Host has one does not provide the operating system of PCI adapter hot plug environment to reach at least three rank pci buss, appoint between the second order pci bus and form series connection by a PCI bridge, each those pci bus can be for connecting at least one PCI card to be measured, it is characterized in that this method comprises:
(a) write down the bus code name that each later those PCI bridge of the second rank pci bus are distributed;
(b) make all PCI bridge anergies;
(c) cut off the power supply of each later those PCI bridge of this second rank pci bus;
(d) treat that this at least one PCI card to be measured is replaced after, recover the power supply of each later those PCI bridge of this second rank pci bus;
(e) each later those PCI bridge of this second rank pci bus are detected, and when detecting a PCI bridge, distributed corresponding bus code name, be assigned with till the bus code name finishes up to all PCI bridges; And
(f) make all PCI bridge activations.
5. the method that realization PCI adapter according to claim 4 carries out hot plug, it is characterized in that, the assigned bus code name of each those PCI bridge respectively comprises a main rank bus code name, rank bus code name and a last rank bus code name in this step (a), and is recorded to a storage device respectively.
6. the method that realization PCI adapter according to claim 4 carries out hot plug, it is characterized in that, step (b) is sent an anergy signal to a wherein pin position of the PCI bridge between this first and second rank pci bus, makes PCI bridge anergy all after this second rank pci bus.
7. the method that realization PCI adapter according to claim 4 carries out hot plug, it is characterized in that, in this step (c) between the PCI bridge between the PCI bridge between this first and second rank pci bus and this second and third rank pci bus, be provided with a switch module, this Test Host orders about this switch module and forms and open circuit, and cuts off the power supply of the PCI bridge after this second rank pci bus.
8. the method that realization PCI adapter according to claim 4 carries out hot plug, it is characterized in that, in this step (d), this Test Host orders about this switch module and forms open circuit, makes PCI bridge between this first and second rank pci bus can transmit the power supply of the PCI bridge of power supply to this second rank pci bus once again.
9. the method that realization PCI adapter according to claim 4 carries out hot plug is characterized in that, comprises in this step (e):
Previous bus code name is distributed back PCI bridge between this second and third rank pci bus;
According to the PCI bridge between this second and third rank pci bus, judge whether in detecting any PCI bridge between the second order pci bus down; And
When determining arbitrary PCI bridge, previous bus code name is distributed back PCI bridge between this time second order pci bus.
10. the method that realization PCI adapter according to claim 4 carries out hot plug, it is characterized in that, step (f) is sent an activation signal to a wherein pin position of the PCI bridge between this first and second rank pci bus, makes all activations of PCI bridge after this second rank pci bus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810006855XA CN101499045B (en) | 2008-02-01 | 2008-02-01 | Method for implementing hot plug of PCI adapter |
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| CN200810006855XA CN101499045B (en) | 2008-02-01 | 2008-02-01 | Method for implementing hot plug of PCI adapter |
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| CN101499045B true CN101499045B (en) | 2010-08-25 |
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| CN102360241A (en) * | 2011-09-23 | 2012-02-22 | 福建星网锐捷网络有限公司 | Reset processing method, device and system of equipment |
| CN108694145B (en) * | 2017-04-06 | 2021-08-13 | 佛山市顺德区顺达电脑厂有限公司 | PCI-E interface control system |
| CN113806273B (en) * | 2020-06-16 | 2024-04-09 | 英业达科技有限公司 | Fast peripheral component interconnect data transfer control system |
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| CN200997131Y (en) * | 2006-12-29 | 2007-12-26 | 深圳易拓科技有限公司 | Improved hard disk |
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2008
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|---|---|---|---|---|
| US6338107B1 (en) * | 1998-12-16 | 2002-01-08 | International Business Machines Corporation | Method and system for providing hot plug of adapter cards in an expanded slot environment |
| CN1936875A (en) * | 2005-09-23 | 2007-03-28 | 英业达股份有限公司 | Hot plug-pull control system and method |
| CN200997131Y (en) * | 2006-12-29 | 2007-12-26 | 深圳易拓科技有限公司 | Improved hard disk |
Non-Patent Citations (2)
| Title |
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| 张凯、黄玉玺、 顾长华、姜莉.PCI 总线的热插拔技术及实现.国外电子元器件 2001年第9期.2001,(2001年第9期),39-40. |
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