JPH0787108A - Adapter controlling method for control adapter in cooperation on same bus - Google Patents

Abstract

PURPOSE:To improve throughput by setting a logic equipment number address at every line so as to make direct accessing possible from a high-order software in a device where operation is executed by means of a communication processing between plural control adapters. CONSTITUTION:In a device where FAX communication is executed by the communication processing between the control adapters A and B, the prescribed logic equipment number address is set in the image extension adapter B. When the high-order software executing conversion into image data requests extension, the logic equipment number address of the adapter B is designated, an extension request is cued in an adapter control area 121 at the time of requesting data communication to an adapter control channel 11 and interruption to the adapter B is executed. When interruption is detected, a common processing part 20 fetches transmission data of the data area 124 of a mainbody memory 12 to an extension processing part 21b and transfers data after the processing of data image extension. Thus, access is directly executed from the high-order software so as to make FAX communication possible unless image extension is in time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control adapter which performs communication processing in cooperation on the same bus and which has not been accessed by higher-level software, such as an image expansion adapter, is directly accessed. Control method.

With the recent release of public communication lines, communication using the public communication lines, for example facsimile communication, has come to be performed, so that the line cost is reduced and the connection with the public line is made. It is necessary to speed up the facsimile communication based on the recommendation of the International Telegraph and Telephone Consultative Committee (CCITT) which defines the control.

Conventionally, when communicating with a terminal such as a workstation or facsimile communication (FAX), when the device itself communicates as a relay device, for example, the host side is a line and the workstation side is a local area network (LAN).
, The data received from the line is notified to the main processing unit once, and the main processing unit analyzes the data.
Again, the processing method of requesting transmission to another control adapter was taken.

Further, when transmitting data to a FAX terminal, similarly to the above, the control adapter which once expands the transmitted data is requested to expand and compress the data, and the image expansion adapter sends the data. After notifying the main body processing device of the image data, the main body processing device again requests the control adapter for transmission to the FAX terminal to perform transmission. Therefore, there is a problem that the number of accesses to the main body processing device increases and the processing speed of the entire device cannot be improved.

Therefore, the applicant of the present application filed Japanese Patent Application No. 04-13.
In an apparatus that performs transmission processing such as FAX in the communication processing method between adapters on the same bus of Japanese Patent No. 7393, adapters communicate with each other and communicate with an application that is higher-level software one by one as described above. Without using the control information and data stored in a predetermined area on the memory of the main body processing device, data exchange is simplified and the load of the application, which is the upper software, is reduced, A method of improving speed performance is disclosed.

In such an adapter control method,
Conventionally, when a control adapter such as a line or LAN installed in a host performs processing, access from higher-level software,
That is, control is performed by requesting processing, and the upper-level software accesses the logical unit number address provided in the control adapter. The logical machine number address is a pair of even and odd addresses for one line. Use an even address for data notification from the line side and an odd address for data transmission from the host side. Then, full-duplex communication is performed between the main unit and the control adapter.

In the case of a control adapter for fax transmission, F
It consists of two sheets, an AX control adapter and an image expansion adapter, and the upper software accesses the logical machine number address of the FAX control adapter to perform communication processing by cooperation between the FAX control adapter and the image expansion adapter. It is designed to perform fax transmission.
At this time, the upper-level software does not need to access the image expansion adapter, and since it does not show the logical machine number address, it cannot access it directly.

However, in the image expansion, the image expansion cannot be completed in time due to the processing capability of the image expansion adapter, and particularly in the above-mentioned high speed facsimile communication, when the FAX transmission cannot be performed, or the horizontal cooperation or the vertical cooperation is performed. Although the host or other control unit may need the data expanded by the image expansion adapter of the host, the image expansion adapter cannot be accessed from the host software, so it was expanded by the image expansion adapter. There is no method of storing image data in a disk or the like in advance and using it for subsequent fax transmission or cooperative processing.

Therefore, even in such an adapter control method, there is a need for a method of allowing the software on the host side to directly access the image expansion adapter.

[0010]

2. Description of the Related Art FIGS. 7 and 8 are diagrams for explaining a processing method of FAX communication by a cooperative processing. In this example, the FAX control adapter A and the image expansion adapter B cooperate with each other during the FAX transmission, and the application of the main processing unit 1
A case will be described as an example where the FAX communication processing requested by 10 is performed. In this example, the control adapter accessible by the application is the FAX control adapter A,
Inaccessible adapter is image expansion adapter B
Is. For details of the communication processing method between control adapters described in this example, refer to the above-mentioned Japanese Patent Application No. 04-137393.
Since it is disclosed in Japanese Unexamined Patent Application Publication No. 2005-121242, "Inter-adapter communication processing method on the same bus", here, for example, the general operation of a part that links the cooperative processing of FAX communication between two control adapters is mainly focused. Explain.

First, in the host system shown in FIG.
An adapter control channel 11 and a main body memory 12 are provided, and a FAX communication control adapter A and an image developing adapter B are installed on the data bus 3.

The main body memory 12 is used as an area used by the adapter control channel 11 for a request from the application 10 and a notification from the adapter control channel 11 at the time of downloading at the time of initialization of the device, and
As an interface area between the adapter control channel 11 and each control adapter A, B, an adapter control area, specifically, a FAX control adapter adapter control area 120 and an image expansion adapter adapter control area 121 are provided for each control adapter A, B. It has been acquired (assigned) one area at a time.
A channel control area 122 is acquired as a control area of the adapter control channel 11. The inter-adapter cooperation information area 123 is acquired for the cooperation processing between the control adapters A and B, and the logical machine number address of the other adapter is defined as the information.

FIG. 8 is a schematic diagram of processing in FAX transmission. Application 10 is for each control adapter A, B
In the adapter control areas 120 and 121 of the FA, as shown in the format shown in FIG.
Specify the logical unit number address of X control adapter A and request data transmission to adapter control channel 11 (in the figure)
(1)}.

The requested adapter control channel 11 is
As shown in FIG. 5, the fax control adapter A
The transmission request is queued in the activation queue area in the adapter control area 120 of and the interrupt is issued to the FAX control adapter {(2) in the figure}.

The common processing unit 20 of the FAX control adapter A which has detected the interruption fetches the transmission request (startup code) (see FIG. 2) queued in the own adapter control area 120 of the main body memory 12, and performs the procedure processing. Request processing to part 21a {(3) in the figure}.

The procedure processing unit 21a receives the transmission request,
The common processing unit 20 is requested based on the information requested for image expansion of the data to be transmitted to the image expansion adapter B {(4) in the figure}.

The common processing section 20 copies the control information of the transmission request to its own adapter control area 120, turns on a flag area (not shown) of the adapter control area 121 of the image expansion adapter B, and turns on the image expansion adapter B. In response, a start interrupt is generated {(5) in the figure}.

When the common processing unit 20 of the image expansion adapter B in which the activation interrupt has occurred recognizes that the interrupt flag in its own adapter control area 121 is ON, FA
The control data stored in the adapter control area 120 of the X control adapter A is fetched, and the turned-on interrupt flag is turned OFF ((6) in the figure). Then, the common processing unit 20
The control data is passed from the image processing unit 21b to the image processing unit 21b, and the image processing is requested {(7) in the figure}.

The expansion processing unit 21b recognizes from the control data passed that it is an image expansion request, and loads the transmission data previously stored from the application 10 into the data area 124 of the main body memory 12. And start the image development process of the transmitted data (in the figure)
(8)}.

After that, when the image expansion processing is completed, the expansion processing section 21b requests the common processing section 20 in its own image expansion adapter B to transfer the image data ((9) in the figure).
}. Common processing unit that received the image data transfer request
In the case of 20, the image data is
Data is copied to the inter-adapter cooperation control area (see FIG. 5) in the inside, and the flag area of the adapter control area 120 of the fax control adapter A is turned on to generate a start interrupt to the fax control adapter {(10) in the figure} .

When the common processing unit 20 of the FAX control adapter A in which the activation interrupt has occurred recognizes that the interrupt flag in its own adapter control area 120 is ON, it turns OFF the interrupt flag that has been turned ON. Medium (11)}. Then, the common processing unit 20 of the FAX control adapter A notifies the procedure processing unit 21a that the image data has been transferred ((12) in the figure), and the procedure processing unit 21a causes the adapter control area 120 of the image expansion adapter B to be transferred. , The image data stored in the inter-adapter cooperation control area {see FIG. 2} is fetched {(13) in the figure}, and the image data is transmitted to the line for data transmission {(14) in the figure] }.

[0022]

FIG. 9 is a diagram for explaining a problem caused by the conventional cooperative processing. As described above, when there is a large amount of data to be fax-transmitted in high-speed fax communication or the like, the character data and the image data from the host software are expanded by the cooperation processing of the fax control adapter A and the image expansion adapter B. When sending out to the line, depending on the processing capability of the image expansion adapter B, the image expansion process may not be in time, and the transmission from the FAX control adapter A to the line may not be in time.

Further, as shown in FIG. 9, another host, which is so-called horizontal cooperation or vertical cooperation, or another control device needs the data expanded by the image expansion adapter B of the host. To do this, for example, fax data sent to the host at 200 dpi from the line,
If you want to display it on the display device of 400dpi that another host has, the FAX data sent to the host is
It is necessary to transfer the density to the other host after the density conversion is performed by the image expanding adapter B of the host, but the image expanding adapter B cannot be directly accessed by the conventional FAX communication method by the cooperative processing. was there.

Therefore, the image data expanded by the image expansion adapter B is stored in advance in a disk device or the like, and after image conversion such as density conversion, FAX transmission or
There is a problem that it is not possible to send to another host that is linked horizontally or vertically.

In view of the above-mentioned conventional drawbacks, the present invention provides a predetermined logical unit number for a control adapter that has not been accessed by higher-order software in an adapter control method in a control adapter that processes in cooperation on the same bus. An object of the present invention is to provide a method for directly accessing the upper software by setting an address and using the set logical machine number address.

[0026]

1 to 6 are views showing an embodiment of the present invention, FIG. 1 shows an example of the overall configuration of a system, and FIG. 2 is a logic in an image expansion adapter. FIG. 3 shows a configuration example of a machine number address, FIG. 3 shows an example of cooperation processing of FAX communication from upper software, FIG. 4 shows an example of a direct access method from the upper software to the image expansion adapter B, and FIG. FIG. 6 shows a format example of the adapter control area, and FIG. 6 shows a relationship with another host which is horizontally linked or vertically linked. The above problems are solved by the adapter control processing method configured as follows.

Two control adapters on the same bus 3
In the data processing device that processes the predetermined application 10 on the main processing device 1 side by the cooperation of (A, B),
The application 10 is provided with host software for requesting transmission of FAX data and host software for requesting image development of data, and serves as an interface between the host software and the adapter control channel 11 to connect the control adapter (A, B). A network control unit 13 for performing network monitoring, the network control unit 13 and control adapters (A, B), or host software and control adapters (A, B)
B) interface, which performs queuing processing at startup to the control adapter (A, B), or processing for monitoring the end queue, the adapter control channel 11, the adapter control channel 11, and the control adapter (A , B) Procedure processing unit
21a, or becomes an interface with the expansion processing unit 21b, and activates to the procedure processing unit 21a, or the expansion processing unit 21b based on the logical unit number address, and from the procedure processing unit 21a, or the expansion processing unit 21b. Control adapter by request of
(A, B) common processing unit 20 that performs the cooperative processing, the control adapter (A) control and FAX procedure processing, the procedure processing unit 21a that performs the expansion request to the control adapter (B), and the above The expansion processing unit 21b that controls the control adapter (B) and creates image data when requested to expand the image.
By setting multiple logical machine number addresses in the control adapter (B) that performs image development and the upper software accesses with the logical machine number address, the above software can directly access the control adapter (B). , And the control adapter (A, B) that cooperates with each other to exclude the logical machine number address and the logical machine number address accessed by the upper software from each other, the control adapter (B ), The expansion processing and the cooperation processing are simultaneously performed.

[0028]

That is, in the adapter control processing method according to the present invention, for example, in a device that performs a predetermined operation, for example, FAX communication, by a communication process between two control adapters (A, B), a predetermined image data is transmitted. Control adapter that the higher-level software that performs conversion to
(B) For example, by setting even and odd logical machine number addresses for each line in the image expansion adapter, and using a part of the logical machine number address in the image expansion adapter, On the other hand, it allows direct access from higher-level software.

At this time, the logical unit number address is an even number for performing full-duplex communication processing between adapters for each line, and
By dividing into an odd-numbered logical machine number, an even-numbered logical machine number that is processed by direct access from higher-level software, and an odd-numbered logical machine number, processing is occupied for each line, and simultaneous operation of each processing is possible. .

[0030]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 5 described above are views showing an embodiment of the present invention.

In the present invention, for example, a host software for converting into predetermined image data in a device which performs a predetermined operation, for example, FAX communication, by a communication process between two control adapters (A, B). Control adapter (B) that the user has never accessed, for example, set a predetermined logical machine number address in the image expansion adapter, and the upper software uses the set logical machine number address to expand the image. The means of directly accessing the adapter (B) are the means necessary for carrying out the present invention. The same reference numerals indicate the same objects throughout the drawings.

1 to 5, the adapter control method between the control adapters that cooperate with each other on the same bus to perform processing will be described below. In the present embodiment, in the image expansion adapter B which is performing FAX transmission by the FAX control adapter A and the cooperation between the adapters, for example, the higher-level software requests the image expansion request to a vacant logical machine number address for which the cooperation processing is not performed. A description will be given by taking an example of performing and notifying the image-developed data.

FIG. 1 is a schematic diagram of a system in a host, which is a reprint of FIG. 7 used for explaining the prior art. The main processing unit 1 is provided with, for example, host software for performing fax communication, host software for converting to predetermined image data, a network controller 13, an adapter control channel 11, a main memory 12, and a data bus. A FAX communication control adapter A and an image expansion adapter B are installed on the upper part 3.

In the above, the upper software is an application for FAX transmission processing, and the upper software is an application for image development processing. The upper software requests data transmission via the network control unit 13 that executes the network control program. In the main body memory 12, as an area used by the adapter control channel 11 for requests from the upper software and notification from the adapter control channel 11, and as an interface area between the adapter control channel 11 and each control adapter A, B. , Adapter control areas 120 and 121 have been acquired for each control adapter A and B, one area each. Also, as a control area of the adapter control channel 11, the channel control area 122
Has been acquired. The adapter cooperation information area 123 is acquired for the cooperation processing of the control adapters A and B, and the logical machine number address of each control adapter A and B is defined as the information. {Refer to inter-adapter cooperation control area in FIG. 5} FIG. 2 shows FAX control adapter A and image expansion adapter B
3 shows the configuration of the logical machine number address in. FAX
The logical line number addresses for the three lines of the control adapter A are linked with the logical line numbers for the three lines of the image expansion adapter B, and this link information is defined in advance by installation. The logical machine number accessible by the upper software is the logical machine number set in the FAX control adapter A, for example, 0x0100 (hexadecimal number 0100, omitted below), 0x0101 shown in the figure.
And so on. Among these logical machine numbers, the even machine numbers are used when using the FAX control adapter A from the line, and the odd machine numbers are used when the host device etc. on the main unit side uses the FAX control adapter A. It

The remaining three lines of the image expansion adapter B are logical machine numbers which are not linked with the FAX control adapter A, and are logical machine numbers accessible by the above-mentioned upper software. FIG. 3 is a schematic diagram of inter-adapter cooperation processing in FAX transmission, and is a reprint of FIG. 8 described in the related art.

First, the upper-level software requests the network control unit 13 with the device name defined for each line when transmitting data. At this time, the data area 124 of the main body memory 12 is also specified {(1) in the figure}. Network controller
13 obtains the odd logical machine number of FAX control adapter A from the device name, and requests the adapter control channel 11 for data transmission {(2) in the figure}. The requested adapter control channel 11 is the adapter control area 120 of FAX control adapter A.
Queue the transmission request in the activation queue (see Fig. 5) in the box and cause an interrupt to the FAX control adapter A (in the figure)
(3)}.

The common processing unit 20 which has detected the interruption of the FAX control adapter A fetches the transmission request queued in the own adapter control area 120 of the main body memory 12, and based on the specified odd logical machine number address, Judge which line it is and request processing to the procedure processing unit 21a (in the figure)
(Four)}. The procedure processing unit 21a accepts the transmission request, and requests the common processing unit based on the information requested to expand the image of the data to be transmitted to the image expansion adapter B ((5) in the figure). The common processing unit 20 copies the information of the transmission request to the own adapter control area 120, turns on a flag of a certain area in the adapter control area 121 of the image expansion adapter B, and generates a start interrupt {(6 in the figure. )} Common processing unit of image expansion adapter B in which the activation interrupt has occurred 20
Then, it is judged that the flag in the own adapter control area 121 is turned on, and the adapter control area of FAX control adapter A 1
The information stored in 20 is taken in and the flag that is on is turned off ((7) in the figure). Then, the common processing unit 20
Sends the information to the expansion processing unit 21b and requests the processing {(8) in the figure}.

In the expansion processing section 21b, it is judged from the passed information that it is an image expansion request, and the upper software
The transmission data prepared in advance is loaded into the data area 124 in the main body memory 12, and the image development processing of the transmission data is started {(9) in the figure}.

After that, when the image development processing is completed,
The expansion processing unit 21b requests the common processing unit 20 to transfer the image data {(10) in the figure}. The common processing unit 20, which has received the image data transfer request, copies the image data into the own adapter control area 121 and sends it to the FAX.
A flag in an area of the adapter control area 120 of the control adapter A is turned on, and a start interrupt is generated for the FAX control adapter A (11 in the figure).

The common processing unit 20 of the FAX control adapter A in which the activation interrupt has occurred judges that the flag is turned on in its own adapter control area 120, and turns off the flag that is turned on {(in the figure 12)}. Then, the common processing unit 20
Notifies the procedure processing unit 21a that the image data has been transferred ((13) in the figure), and the procedure processing unit 21a fetches the image data stored in the adapter control area 120 of the image expansion adapter B. {(14) in the figure}, send image data to the line that sends data {in the figure
(15)}.

FIG. 4 is a schematic diagram of direct access in image development, which is the main part of the present invention. The above-mentioned higher-level software, when making a deployment request, has an odd-numbered logical machine number address for directly accessing the image deployment adapter B described in FIG. 2 (indicated as empty in FIG. 2).
To request data transmission to adapter control channel 11. At this time, the even logical unit number address and the image data area 125 of the main body memory 12 are specified so that the image data is notified at any time, and the notification request is also made.
1)}.

The requested adapter control channel 11 is
The expansion request is queued in the adapter control area 121 of the image expansion adapter B, and an interrupt is generated to the image expansion adapter B (2 in the figure). Common processing unit that detected an interrupt
In 20, the expansion request queued in the local adapter control area 121 of the main body memory 12 is fetched, and the expansion processing unit 21b
Request processing {3 in the figure}. The expansion processing unit 21b judges and accepts the expansion request, and outputs the data area of the main body memory 12.
The transmission data in 124 is fetched, and the image development processing of the data is started (4 in the figure).

After that, when the image expansion processing is completed, the expansion processing section 21b requests the common processing section 20 to transfer the image data (5 in the figure). In the common processing unit 20 that has received the image data transfer request, the image data area 12 of the main unit memory 12 specified by the notification request of the upper software is
Based on the address of 5, the image data is stored in the main memory
Data is copied to 12 image data areas 125 (6 in the figure)
}, The end of the notification request is queued in the end queue in the own adapter control area 121 (see FIG. 5) and terminated (7 in the figure).

The adapter control channel 11 monitors the end queue of the adapter control area 121. When the end code is queued in the end queue, it is notified by the upper software that the expanded image data is notified. Notify to {8) in the figure}.

FIG. 5 shows the format of the adapter control areas 120 and 121. As shown in the figure, there is the above-mentioned start queue area and end queue area, and in the start queue, an area for storing the logical unit number address corresponding to the line to be started,
It consists of an area for setting the activation code, for example, the SIO code, and a data address area for storing the content of the activation request, for example, the address of the channel command word (CCW) .The end queue is linked with the activated line. It consists of an area for storing the existing logical unit number address, an end code, and a status information area for setting status information (status such as normal end or abnormal end) at the end.

The inter-adapter cooperation control area is, for example, a control for transferring data between the FAX control adapter A and the cooperating image developing adapter B when the above-mentioned higher-level software performs FAX communication. This is an area for storing information, and the logical machine number address of the other party {the logical machine number address of the image expansion adapter} and the own side logical machine number address {FAX
Control adapter logical machine number address} and control adapter A,
Communication start code between B, for example, area to store data transfer code, number of transfer bytes, and transfer data
(Specifically, it consists of an area for storing control data.) From the above, if a deployment request is made by linking adapters during fax transmission and a deployment request is made by direct access from higher-level software, the logical machine at startup The flag is controlled based on the address number, and the common processing unit of the image expansion adapter makes the determination. It should be noted that whether or not the partner who has activated the deployment request is correct is determined based on the presence or absence of the inter-adapter cooperation information. Also, when notifying the FAX control adapter or the upper software of the completion of the image development processing, the determination is made from the flag control at the time of startup based on the logical machine number address.

[0047]

As described in detail above, according to the adapter control method of the present invention, as shown in FIG. 7, due to the processing capability of the image expansion adapter B, the image expansion cannot be completed in time, and the FAX is not processed. If the data cannot be sent, the host software directly accesses the image expansion adapter, stores the image expanded data in the disk device (image database (DB)), etc. in advance, and then requests the FAX control adapter for transmission. As a result, the FAX transmission can be normally performed. Further, as shown in FIG. 7, even in horizontal or vertical linkage with another host or another control device via a line control adapter or a LAN control adapter, the host software or the like can be used as an image expansion adapter. By directly accessing the image data and storing the image data in the disk device, it is possible to perform a cooperative process with another device. Also, as shown in FIG.
For example, after storing 200 dpi image data sent from FAX once in the image database (DB), the so-called density conversion is performed by accessing the image expansion adapter B from the host software. After converting to 400 dpi image data, it can be displayed on a 400 dpi display device provided in another host connected to the line control adapter or the like.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention (No. 1).

FIG. 2 is a diagram showing an embodiment of the present invention (Part 2).

FIG. 3 is a diagram showing an embodiment of the present invention (part 3).

FIG. 4 is a diagram showing an embodiment of the present invention (No. 4).

FIG. 5 is a diagram showing an embodiment of the present invention (No. 5).

FIG. 6 is a diagram showing an embodiment of the present invention (No. 6).

FIG. 7 is a diagram (part 1) illustrating a processing method of FAX communication by cooperative processing.

FIG. 8 is a diagram (part 2) explaining a processing method of FAX communication by cooperative processing.

FIG. 9 is a diagram for explaining a problem caused by conventional cooperation processing.

[Explanation of symbols]

1 Main processing unit 10 Application, upper software, 11 Adapter control channel 12 Main memory 13 Network control unit 120 FAX control adapter Adapter control area 121 Image expansion adapter Adapter control area 123 Adapter linkage information area 124 Data area 20 Common processing section 21a Procedure processing Part 21b Expansion processing part (1) -Coordination process between control adapters 1) -Direct access process to image expansion adapter B

Claims (1)

[Claims] 1. Two control adapters on the same bus (3)
In the data processing device that processes the predetermined application (10) on the main processing device (1) side through the cooperation of (A, B), as the above-mentioned application (10), higher-order software () that requests FAX data transmission In addition, it is equipped with a higher-level software () for requesting data image expansion, and also serves as an interface between the higher-level software () and the adapter control channel (11), and a network control unit (a network control unit that monitors the network of the control adapters (A, B) ( 13) and the interface between the network control unit (13) and the control adapter (A, B) or the host software () and the control adapter (A, B), and the queue at the time of startup to the control adapter (A, B) Adapter control channel (11) for performing ing processing or end queue monitoring processing, the adapter control channel (11), and the control adapter (A,
B) It becomes an interface with the procedure processing unit (21a) or the expansion processing unit (21b), and starts the procedure processing unit (21a) or the expansion processing unit (21b) based on the logical machine number address, In addition, the procedure processing unit (21a) or the common processing unit (20) that performs the cooperative processing between the control adapters (A, B) at the request of the expansion processing unit (21b) and the control of the control adapter (A), And a procedure processing unit (21a) that performs FAX procedure processing and requests the control adapter (B) to expand.
And a development processing unit that controls the control adapter (B) and creates image data when requested to develop an image.
(21b), multiple logical machine number addresses are set in the control adapter (B) that performs image deployment, and the upper software () accesses with the logical machine number address, and the above software controls the above. By directly accessing the adapter (B) and by excluding the logical machine number address that links between the control adapters (A, B) and the logical machine number address accessed from the upper software (), An adapter control method in a control adapter that processes in cooperation on the same bus, wherein the expansion processing in the control adapter (B) that performs image expansion and the cooperation processing are performed simultaneously.