CN102681699A - System and method for realizing keyboard video mouse remote management - Google Patents
System and method for realizing keyboard video mouse remote management Download PDFInfo
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Abstract
The invention discloses a system and a method for realizing keyboard video mouse (KVM) remote management. The system includes the following steps: when monitoring that an external discrete graphics card is accessed, a data control unit decodes and recodes the received data and signals of the discrete graphics card through a bus interface standard 16 channel protocol to generate a bus interface standard 1 channel video data signal and transmits the bus interface standard 1 channel video data signal to a cache data switching unit; and the cache data switching unit receives and processes the bus interface standard 1 channel video data signal and transmits the bus interface standard 1 channel video data signal to a baseboard management controller (BMC) to manage a chip graphics card channel. The system can realize the KVM remote management function under two modes of coexistence of the external discrete graphics card and a BMC integrated graphics card, and the external discrete graphics card and the BMC integrated graphics card can be switched smoothly. In addition, automatic backup of operation recording data of a remote user is supported, so that the operation data of the user can be stored permanently.
Description
Technical field
The present invention relates to computer communication field, relate in particular to the system and method for realizing the keyboard-video-mouse telemanagement.
Background technology
In the current server product system; Through baseboard management controller (BMC; Baseboard Management Controller) coexistance model of integrated graphics card is realized the telemanagement technology to keyboard-video-mouse (KVM, Keyboard Video Mouse), has used extremely extensive; Make server have the function of bottom management, comprising: local and functions such as remote diagnosis, control desk support, configuration management, hardware management and fault eliminating.
Wherein, the KVM management based on video card integrated among the BMC is referred to as KVM over IP, also is about to keyboard, video and mouse data digitizing, and through the IP technology KVM data is moved to service end from client.KVM over IP is connected directly to the KVM signal on any client computer, and the data after its digitizing are moved, and need not the actual access service end of client computing machine, also need not to add software/hardware.This KVM over IP techniques make use existing network technology support local and the long-distance user through the KVM operated from a distance server system on the own machine.
The long-range window management mode of integrated graphics card KVM based on the BMC chip of main flow is used widely at present.In server system design, in order to save cost, BMC managing chip and video card are integrated together generally speaking, and the implementation of therefore present KVM telemanagement is on based on BMC managing chip integrated graphics card function basis.Along with the day by day raising of user to the requirement of server finished product video card; This integrated graphics card is replaced by external high-end independent video card more and more; This independent video card all is installed on the server master board with bus interface standards (PCIE, Peripheral Component Interface Express) outer plug-in card mode.Because video information is no longer passed through the BMC managing chip, the long-range window management function of KVM just can't realize that also this moment, server can't obtain the remote server action pane in real time, and the telemanagement to server has brought great difficulty thus.
How to let and realize that server system possesses in the KVM remote management capability based on external independent video card the time; Take into account existing BMC integrated graphics card KVM remote management capability; And can between the two, freely switch, become one of important indicator of current evaluating server system manageability.
Summary of the invention
Technical matters to be solved by this invention provides a kind of system and method for realizing the keyboard-video-mouse telemanagement, can make KVM remote management capability when server system possesses based on external independent video card.
In order to solve the problems of the technologies described above, the invention provides a kind of system that realizes the keyboard-video-mouse telemanagement, comprise the DCU data control unit, the data cached switch unit that connect successively, wherein:
DCU data control unit; Be used for monitoring external independent video card when inserting; The data and the signal of the independent video card that receives are generated bus interface standards 1 passage video data signal through decoding of bus interface standards 16 channel protocols and recodification, and be transferred to data cached switch unit;
Data cached switch unit is used for receiving and handling bus interface standards 1 passage video data signal, and is transferred to baseboard management controller managing chip video card passage.
Further; After DCU data control unit receives the data and whole signal on bus interface standards 16 passages from said independent video card; The bus interface standards equipment mark is decoded; If when recognizing the sign of independent video card, there is said external independent video card to insert in the identification system, identify the speed of independent video card simultaneously; The data that receive and signal are carried out after signal equalization and buffering drive; One the tunnel exports to CPU shows, another road is transferred to data cached switch unit according to the speed of independent video card through the protocol-decoding and the generation bus interface standards 1 passage video data signal of recoding.
Further,
DCU data control unit is the access situation of the external video card of monitoring in real time, and when not monitored external video card when inserting, acquiescence adopts integrated graphics card information in the baseboard management controller managing chip as the data source of keyboard-video-mouse telemanagement window; When having monitored external independent video card when inserting, the identification system gets into independent video card keyboard-video-mouse telemanagement state, and bus interface standards 1 passage of original transmission integrated graphics card keyboard-video-mouse long-distance video information is broken off; The protocol-decoding and the bus interface standards 1 passage video data signal that generates of recoding are transferred to data cached switch unit with switch-over control signal;
Take over seamlessly between the bus interface standards 1 passage video data signal that data cached switch unit provides the bus interface standards 1 passage video data signal that receives and original south bridge according to switch-over control signal, be transferred to baseboard management controller managing chip video card passage then.
Further, this system also comprises video data backup units and permanent storage unit, wherein:
The video data backup units; Be connected with the permanent storage unit with data cached switch unit respectively; Be used to read the lattice pixels data in user's Action Target zone; When lattice pixels data variation number in the target area that detects the current operation of user during, write delta data to the permanent storage unit greater than the threshold value that presets;
The permanent storage unit adopts the target area changing value of flash memory cell recording user mouse-based operation, begins delta data is deposited in successively the homepage storage area of flash memory cell from the base address of buffer memory through the direct mapping mode of address space.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes the keyboard-video-mouse telemanagement, comprising:
When monitoring external independent video card when inserting; The data and the signal of the independent video card that receives are generated bus interface standards 1 passage video data signal through decoding of bus interface standards 16 channel protocols and recodification, and be transferred to baseboard management controller managing chip video card passage.
Further, this method specifically comprises:
After the data and whole signal that receive from independent video card on bus interface standards 16 passages; The bus interface standards equipment mark is decoded; If when recognizing the sign of independent video card, there is independent video card to insert in the identification system, identify the speed of independent video card simultaneously;
The independent video card data that receive and signal are carried out after signal equalization and buffering drive through load balancing; One the tunnel exports to CPU shows; Another road then generates bus interface standards 1 passage video data signal according to the speed of independent video card through protocol-decoding and recodification, is transferred to baseboard management controller managing chip video card passage.
Further, before having monitored external independent video card access, also comprise:
The real-time access situation of the external independent video card of monitoring, when not monitored external independent video card when inserting, acquiescence adopts integrated graphics card information in the baseboard management controller managing chip as the data source of keyboard-video-mouse telemanagement window.
Further, monitoring external independent video card access, and will before the protocol-decoding and the bus interface standards 1 passage video data signal that generates of recoding, also comprise:
Bus interface standards 1 passage of the keyboard-video-mouse long-distance video information of original transmission integrated graphics card is broken off, and send switch-over control signal.
Further, will after the protocol-decoding and the generation bus interface standards 1 passage video data signal of recoding, also comprise:
Take over seamlessly between the bus interface standards 1 passage video data signal that the bus interface standards 1 passage video data signal that receives and original south bridge is provided through switch-over control signal, be transferred to baseboard management controller managing chip video card passage then.
Further, this method also comprises:
Read the lattice pixels data in user's Action Target zone in real time,, delta data is write the permanent storage unit, to write down the changing value of this operation when lattice pixels data variation number in the target area that detects the current operation of user during greater than the threshold value that presets.
The present invention realizes the KVM functional requirement in order to satisfy the external independent video card of server system, takes into account realization KVM remote management capability under two kinds of patterns of external independent video card and BMC integrated graphics card coexistence simultaneously, and between the two, can take over seamlessly.In addition, support automatic backup function, make user's service data can access permanent preservation long-distance user's record data.
Description of drawings
Fig. 1 is the structural representation of the system embodiment of realization keyboard-video-mouse of the present invention telemanagement.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical scheme of the present invention is at length set forth.Should be appreciated that following listed examples only is used for explanation and explains the present invention, and does not constitute the restriction to technical scheme of the present invention.
The system embodiment of realization keyboard-video-mouse provided by the invention telemanagement, its structure is as shown in Figure 1, comprises the DCU data control unit, the data cached switch unit that connect successively, wherein:
DCU data control unit; Be used for monitoring external video card when inserting; With the data of the independent video card that receives and signal through PCIE (x16; Be called bus interface standards 16 passages) protocol-decoding and recode to generate PCIE (x1 is called bus interface standards 1 passage) video data signal and be transferred to data cached switch unit;
Data cached switch unit is used to receive and handle PCIE (x1) video data signal that decoding generates, and is transferred to BMC managing chip video card passage.
In said system embodiment,
After DCU data control unit receives the data and whole signal (comprising signals such as clock) on independent video card access PCIE (x16) groove; Through the PCIE device id is decoded; When recognizing independent video card ID, there is external video card to insert in the identification system, identifies the speed of video card simultaneously; The data that receive and signal are carried out after signal equalization and buffering drive, and one the tunnel exports to CPU shows, another road according to the speed of video card through protocol-decoding and recode and generate PCIE (x1) video data signal and be transferred to data cached switch unit.
DCU data control unit is realized the PCIE signal is carried out data balancing and buffering driving through load balancing, to improve the driving force of signal, solves problems of Signal Integrity simultaneously.
In said system embodiment,
DCU data control unit is the access situation of the external independent video card of monitoring in real time, and when not monitored external independent video card when inserting, acquiescence adopts integrated graphics card information in the BMC managing chip as the data source of KVM telemanagement window; When having monitored external independent video card when inserting, the identification system gets into independent video card KVM telemanagement state, and the transmission channel PCIE (x1) of original integrated graphics card KVM video information is broken off; To be transferred to data cached switch unit with switch-over control signal through PCIE (x16) protocol-decoding and PCIE (x1) video data signal of recoding and generating;
Take over seamlessly between PCIE (x1) video data signal that data cached switch unit provides PCIE (x1) video data signal that receives and original south bridge (Platform Controller Hub) according to the switch-over control signal that receives, be transferred to BMC managing chip video card passage then.
Said system embodiment also comprises video data backup units and permanent storage unit, wherein:
The video data backup units; Be connected with the permanent storage unit with data cached switch unit respectively; Be used to read the lattice pixels data in user's Action Target zone; When lattice pixels data variation number in the target area that detects the current operation of user during, write delta data to the permanent storage unit greater than the threshold value that presets;
The permanent storage unit adopts the target area changing value of flash memory cell recording user mouse-based operation, begins delta data is deposited in successively the homepage storage area of flash memory cell from the base address of buffer memory through the direct mapping mode of address space.
Like this, even close whole system power supply,,, significantly saved the system building cost thus so system equipment does not need the outside lithium battery support because delta data is deposited in the flash memory.When needs are checked data, directly from flash memory, read KVM management incremental data successively, improve the reliability of management data backup.
The present invention is directed to said system embodiment, a kind of method embodiment that realizes the keyboard-video-mouse telemanagement correspondingly also is provided, its flow process comprises the steps:
When having monitored external independent video card when inserting, data and the signal that receives independent video card is through PCIE (x16) protocol-decoding and recode and generate PCIE (x1) video data signal, and is transferred to BMC managing chip video card passage.
Said method embodiment specifically comprises:
After receiving the data and whole signal (comprising signals such as clock) on independent video card access PCIE (x16) groove (being passage); Through the PCIE device id is decoded; When recognizing independent video card ID, there is external video card to insert in the identification system, identify the speed of video card simultaneously;
The data that receive and signal are carried out after signal equalization and buffering drive through load balancing; One the tunnel exports to CPU shows, another road then is transferred to BMC managing chip video card passage according to the speed of independent video card through the protocol-decoding and generation PCIE (x1) video data signal of recoding.
In said method embodiment, before having monitored external video card access, also comprise:
DCU data control unit is the access situation of the external independent video card of monitoring in real time, and when not monitored external independent video card when inserting, acquiescence adopts integrated graphics card information in the BMC managing chip as the data source of KVM management window;
Monitoring external independent video card when inserting, and will before PCIE (x16) protocol-decoding and PCIE (x1) video data signal that generates of recoding, also comprise:
The transmission channel PCIE (x1) of original integrated graphics card KVM video information is broken off, and send switch-over control signal;
To after PCIE (x16) protocol-decoding and generation PCIE (x1) video data signal of recoding, also comprise:
Take over seamlessly between PCIE (x1) video data signal that PCIE (x1) video data signal that receives and original south bridge (PCH) is provided through switch-over control signal, be transferred to BMC managing chip video card passage then.
Said method embodiment also comprises:
Read the lattice pixels data in user's Action Target zone in real time,, delta data is write the permanent storage unit, to write down this operation changing value when lattice pixels data variation number in the target area that detects the current operation of user during greater than the threshold value that presets.
Said; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection domain of claim.
Claims (10)
1. a system that realizes the keyboard-video-mouse telemanagement is characterized in that, comprises the DCU data control unit, the data cached switch unit that connect successively, wherein:
DCU data control unit; Be used for monitoring external independent video card when inserting; The data and the signal of the said independent video card that receives are generated bus interface standards 1 passage video data signal through decoding of bus interface standards 16 channel protocols and recodification, and be transferred to data cached switch unit;
Data cached switch unit is used for receiving and handling said bus interface standards 1 passage video data signal, and is transferred to baseboard management controller managing chip video card passage.
2. according to the described system of claim 1, it is characterized in that,
After said DCU data control unit receives the data and whole signal on said bus interface standards 16 passages from said independent video card; The bus interface standards equipment mark is decoded; If when recognizing the sign of said independent video card; There is said external independent video card to insert in the identification system, identifies the speed of said independent video card simultaneously; The data that receive and signal are carried out after signal equalization and buffering drive; One the tunnel exports to CPU shows, another road is transferred to said data cached switch unit according to the speed of said independent video card through the protocol-decoding and the said bus interface standards 1 passage video data signal of generation of recoding.
3. according to the described system of claim 2, it is characterized in that,
Said DCU data control unit is the access situation of the external video card of monitoring in real time; When not monitored external video card when inserting, acquiescence adopts integrated graphics card information in the said baseboard management controller managing chip as the data source of said keyboard-video-mouse telemanagement window; When having monitored said external independent video card when inserting, the identification system gets into independent video card keyboard-video-mouse telemanagement state, and bus interface standards 1 passage of the said integrated graphics card keyboard-video-mouse of original transmission long-distance video information is broken off; The said protocol-decoding and the said bus interface standards 1 passage video data signal that generates of recoding are transferred to said data cached switch unit with switch-over control signal;
Take over seamlessly between the bus interface standards 1 passage video data signal that data cached switch unit provides the said bus interface standards 1 passage video data signal that receives and original south bridge according to said switch-over control signal, be transferred to said baseboard management controller managing chip video card passage then.
4. according to each described system of claim 1 to 3, it is characterized in that, also comprise video data backup units and permanent storage unit, wherein:
The video data backup units; Be connected with the permanent storage unit with said data cached switch unit respectively; Be used to read the lattice pixels data in user's Action Target zone; When lattice pixels data variation number in the target area that detects the current operation of user during, write delta data to the permanent storage unit greater than the threshold value that presets;
Said permanent storage unit adopts the target area changing value of flash memory cell recording user mouse-based operation, begins delta data is deposited in successively the homepage storage area of flash memory cell from the base address of buffer memory through the direct mapping mode of address space.
5. a method that realizes the keyboard-video-mouse telemanagement is characterized in that, comprising:
When monitoring external independent video card when inserting; The data and the signal of the said independent video card that receives are generated bus interface standards 1 passage video data signal through decoding of bus interface standards 16 channel protocols and recodification, and be transferred to baseboard management controller managing chip video card passage.
6. according to the described method of claim 5, it is characterized in that, specifically comprise:
After the data and whole signal that receive from said independent video card on bus interface standards 16 passages; The bus interface standards equipment mark is decoded; If when recognizing the sign of said independent video card, there is said independent video card to insert in the identification system, identify the speed of said independent video card simultaneously;
The said independent video card data that receive and signal are carried out after signal equalization and buffering drive through load balancing; One the tunnel exports to CPU shows; Another road then generates said bus interface standards 1 passage video data signal according to the speed of said independent video card through said protocol-decoding and recodification, is transferred to said baseboard management controller managing chip video card passage.
7. according to the described method of claim 6, it is characterized in that, before having monitored said external independent video card access, also comprise:
The real-time access situation of the external independent video card of monitoring, when not monitored external independent video card when inserting, acquiescence adopts integrated graphics card information in the said baseboard management controller managing chip as the data source of keyboard-video-mouse telemanagement window.
8. according to the described method of claim 7, it is characterized in that,
Monitoring said external independent video card access, and will before the said protocol-decoding and the said bus interface standards 1 passage video data signal that generates of recoding, also comprise:
Bus interface standards 1 passage of the keyboard-video-mouse long-distance video information of the said integrated graphics card of original transmission is broken off, and send switch-over control signal.
9. according to the described method of claim 8, it is characterized in that, will after the said protocol-decoding and the said bus interface standards 1 passage video data signal of generation of recoding, also comprise:
Take over seamlessly between the said bus interface standards 1 passage video data signal that the said bus interface standards 1 passage video data signal that receives and original south bridge is provided through said switch-over control signal, be transferred to said baseboard management controller managing chip video card passage then.
10. according to each described method of claim 5 to 9, it is characterized in that, also comprise:
Read the lattice pixels data in user's Action Target zone in real time,, delta data is write the permanent storage unit, to write down the changing value of this operation when lattice pixels data variation number in the target area that detects the current operation of user during greater than the threshold value that presets.
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| CN113542794B (en) * | 2020-04-21 | 2023-09-19 | 深圳市腾讯网域计算机网络有限公司 | Image encoding method, device, server and storage medium |
| CN113836068A (en) * | 2021-09-30 | 2021-12-24 | 北京金山云网络技术有限公司 | PCIe display card control method and device, server and electronic equipment |
| CN113836068B (en) * | 2021-09-30 | 2024-04-26 | 北京金山云网络技术有限公司 | PCIe display card control method and device, server and electronic equipment |
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