JPS6180446A - Recognition system for constitution of device - Google Patents

Abstract

PURPOSE:To recognize automatically and accurately the information on a system constitution by producing the information on the peripheral devices with systemized codes to inform it to a CPU and issuing the information extracting commands to all device addresses existing logically through the CPU. CONSTITUTION:A CPU 1 starts an action to extract the information on a peripheral device 11 by an input/output instruction. In such a case, the extracting command of the information is sent to a peripheral device controller 10 via a channel controller 3 according to a device address indicated by the CPU 1. When the controller 10 knows that an indicated action is equal to a command for extraction of the device information, the information on the device 11 is sent to a main memory 2. A storage address is designated by the CPU 1 in an execution mode of an input/output instruction. Therefore, the CPU 1 can recognize the type of the device sent from the device 11 by referring to the contents stored in the main memory 2. Thus even the peripheral devices different in information reading command are systemized to secure an exactly same command code style. Then the systemized device codes can be allocated within a system.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for generating system equipment configuration information in a data processing system Kb, and in particular, to automatically recognize the connection status and type of peripheral devices in the system. Regarding the method of

(Prior Art) Conventionally, in such data processing systems, systems that perform similar data processing do not necessarily have exactly the same device configuration, but rather often have different device configurations. For this reason, it has been necessary to inform the software that controls these systems of the device configuration information and have it perform processing and operations in accordance with the information.

(Problems to be Solved by the Invention) Therefore, the above device configuration information had to be prepared for each system, and the device information had to be generated manually.

Therefore, the efficiency of manually configuring the device is low and the quality is low.

An object of the present invention is to unify each peripheral device that receives a peripheral device information retrieval command from the central processing unit, systematize the information of each peripheral device, generate it from a system, and notify the central processing unit. The above peripheral device information retrieval command is sent from the central processing unit to all logically existing device addresses [
An equipment configuration recognition method configured to eliminate the above-mentioned drawbacks and automatically and accurately generate system equipment configuration information by executing the system and recognizing the equipment configuration of the system based on the result. Our goal is to provide the following.

(Means for Solving the Problems) The device configuration recognition method according to the present invention is a device configuration recognition method for a data processing system configured by a plurality of peripheral devices, a main culprit device, and a central processing unit. The processing device includes information retrieval means, display means, and recognition means.

The information retrieval means is for sending instructions to a plurality of peripheral devices and retrieving unified device attribute information among the plurality of peripheral devices.

The display means is for displaying the device types of the plurality of peripheral devices included in the device attribute information and the implementation status of the optional feature added to the plurality of peripheral devices.

The recognition means is for recognizing all of the plurality of connected peripheral devices by performing an operation for retrieving device attribute information using a peripheral device address in a pan that can be accessed logically.

4' Actual example) Next, the present invention will be explained in detail with reference to drawing f.

FIG. 1 is a block diagram showing an embodiment of a data processing system for realizing the device configuration recognition method according to the present invention. In FIG. 1, the central processing bag f1 is connected to the main storage device 2 and the channel control device 3, and the channel control device 3 is connected to the main storage device 2, the first peripheral control device 10,
It is connected to the second D peripheral control device 20. moreover,
'lI, 1's peripheral control device 10 has peripheral devices 11, 1
2 is connected to the second peripheral control device 20.
1 is connected. The first peripheral control device 10 is equipped with information generation and retention means for generating and retaining the device types of the subordinate peripheral devices 11 and 12 (the maximum number of peripheral devices) and optional mechanism implementation information. It is assumed that This information can be generated as appropriate by receiving a status signal from the peripheral device 11 or 12, or by using a switch or jumper wiring that can be set in the peripheral control device 10. Furthermore, among the operation instructions from the channel control device 3, which is a higher-level device,
When the peripheral control device 10 receives a peripheral device information retrieval command, the device status held by the subordinate peripheral device 11 or 12 is normally transferred to the main storage device 2 via the channel control device 3. This can be easily realized in the same way as the input operation.

Assume that the central processing unit 1 has started an operation to retrieve the @ location information of the peripheral device 11 by an input/output command.

In this case, the device information retrieval instruction is sent to the channel control device 3.
1e-, and is sent to the peripheral control device 10 according to the device address instructed by the central processing unit 1. When the peripheral control device 10 learns that the instructed operation is a device information retrieval command, it transfers information on the instructed device address, that is, information on the peripheral device 11 to the host device. In general, input/output operations are performed by executing data transfer between the peripheral device [11 and the main memory device 2], so the device information of the peripheral device 11 is also sent to the main memory device 2 in this operation.

The storage address is specified by the central processing unit 1 when executing an input/output command. Therefore, the central processing unit 1
By referring to the contents stored in the main storage device 2, the device type from the peripheral device 11 can be recognized. Here, even if the device information read commands that can be started from the central processing unit 1 described above are sent to different peripheral control devices, they are unified so that they all have a completely low command code format, and are sent to each peripheral control device. The system may also be configured so that systematic device codes are assigned within the system. For example, if it is a $ tape device, device information data can be generated by a subcode unique to the system indicating that it is a $ tape device, as well as a subcode of the installed option mechanism, and other peripheral control The device information of a device, for example, the peripheral device 21 under the second peripheral control device 20 in FIG. 1, can also be obtained in exactly the same format as the peripheral device 11 shown above, except that the device address is different. Become.

The above shows devices that actually exist inside the system, but if no physical device is connected to a device address that can exist logically in the system, it may be a well-known data processing device. Similarly, since the channel control device 3 sends a rejection response to the input/output operation command to the device address to the central processing device 1 according to the present invention, the central processing device 1 receives information that the device is not connected. You can also get Therefore, if a means is prepared in the central processing unit 1 to execute a device information retrieval command for all device addresses that may exist within the system, it is possible to know the device connection status and the type of connected device. It is possible.

FIG. 2 shows a process 70- which causes the central processing unit 1 to execute a device information retrieval command for all device addresses to obtain the device configuration of the system.

Referring to FIG. 2, a device address to be accessed is initially set in step 101, a device information retrieval command is executed for the device address in step 102, and the result of the above operation is checked in step 103.

If the information is successfully retrieved, in step 104, the device address and the retrieved contents are registered in a paired configuration table as shown in FIG. If unsuccessful, nothing will work. Also for the next device address,
In order to perform the same operation as above, the device address to be accessed is updated in step 105. If all the processes have been executed for all possible device addresses, the process is terminated by the determination in step 106. In addition, if there is an unexecuted device address remaining, step 102
Repeat the process from.

However, the only difference is that when the information is successfully retrieved again in step 104 or b, the information is stored in the entry next to the previously registered entry in the table of FIG. The table shown in FIG. 3 obtained by this process becomes information indicating the equipment configuration of the system in which the above processing was performed, and was generated without human intervention.

(Effects of the Invention) As explained above, the present invention unifies each peripheral device that receives a peripheral device information retrieval command from the central processing unit, generates a code that systematizes the information of each peripheral device, and At the same time, the central processing unit executes the peripheral device information retrieval command for all logically existing device addresses, and the device configuration of the system can be recognized from the results. Moreover, there is an effect that system configuration information can be obtained accurately, and reliability and economic efficiency are improved at the same time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a data processing device for implementing the device configuration recognition method according to the present invention. FIG. 2 is a flowchart showing a processing procedure flow executed by the central processing unit to obtain system equipment configuration information. FIG. 3 is an explanatory diagram showing an example of system equipment configuration information. 1...Central processing unit 2...Main storage device 3...
Channel control devices 10, 20... Peripheral control devices 11, 12, 21... Peripheral devices 101 to 106... Program step Patent applicant
NEC Corporation Representative Patent Attorney Hisashi Inoro 82 Speaking 3 times

Claims (1)

[Claims] A device configuration recognition method for a data processing system configured by a plurality of peripheral devices, a main storage device, and a central processing unit, wherein the central processing unit sends instructions to the plurality of peripheral devices. information extraction means for extracting device attribute information unified among the plurality of peripheral devices; device types of the plurality of peripheral devices included in the device attribute information and optional mechanisms added to the plurality of peripheral devices; a display means for displaying the implementation status; and a recognition means for recognizing all of the plurality of connected peripheral devices by performing an operation of retrieving the device attribute information using all logically accessible peripheral device addresses. A device configuration recognition method comprising: