JP3348300B2 - Channels and adapters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel and an adapter for controlling coordination between adapters, and more particularly to a channel and an adapter for coordinating a plurality of adapters having different functions.

[0002]

2. Description of the Related Art Conventionally, when an information processing apparatus 41 requests processing from a plurality of adapters 48 having different functions as shown in FIG. 10, the physical software numbers of the host software 43 and the adapters 48 are assigned one by one. The upper-level software 43 performs input / output processing using the defined device number (there is a case where one adapter has a plurality of device numbers). At this time, when the host software 43 activates the main body channel 44, the activation request is set in the adapter control area 46, and the corresponding adapter 4 is activated.
8 is started and a process is requested. When an interruption of the processing end is generated from the adapter 48 that has executed the processing request, the main body channel 44 notifies the result to the higher-level software 43. As described above, conventionally, the input / output processing of the information processing apparatus 41 and the adapter 48 is usually performed by one machine number to perform the input / output processing of the function of one adapter 48 and the input / output processing of another function is performed. Furthermore, the processing request has been made to another adapter 48.

[0003] The configuration and operation of FIG. 10 will be briefly described below. FIG. 10 shows an explanatory diagram of the prior art. In FIG. 10, an information processing device 41 processes various types of information. In this case, the information processing device 41 requests an adapter 48 for input / output processing to perform business processing.
3, a main body channel 44, a main body memory 45, and the like.

[0004] The OS 42 is an operating system that controls the entire system. Upper software 4
3 is a program for performing various tasks.
It requests the adapter 48 for input / output processing.

The main body channel 44 receives an activation request (a request for activating the adapter 48 and requesting processing) from the higher-level software 43, writes the request in the adapter control area 46, activates the corresponding adapter 48 by an interrupt, and issues a processing request. It is something to do.

The main body memory 45 has an adapter control area 46.
It is a memory for providing a memory. Adapter control area 4
Reference numeral 6 denotes an area for exchanging data between the main body channel 44 and the adapter 48.

[0007] The data bus 47 is a bus connecting the information processing device 41 and the adapter 48. Adapter 48 is
An adapter that performs various input / output processing.

Next, the operation will be described. (1) The host software 43 sends a start request to the main body channel 44
Notify. The main body channel 44 writes the activation request in the adapter control area 46, and activates the corresponding adapter 48 by interruption.

[0009] (2) The activated adapter 48
Extracts an activation request from the adapter control area 46 and performs input / output processing. (3) Adapter 48 that has completed input / output processing in (2)
Is written into the adapter control area 46 and the main body channel 44
Notify by an interrupt. The main body channel 44 notifies the higher-level software 43 of the processing result, and terminates a series of processing.

(4) Subsequently, when using another function,
For example, after calling a line by the adapter 48 in (1) to (3) and subsequently performing data communication by another adapter 48, as in (1) to (3), the host software 4
No. 3 has made an activation request and has requested input / output processing.

[0011]

As described above, a plurality of adapters 48 having different functions operate independently, but in recent years the required processing has become complicated, and for example, data processed by an image There is a request to transmit FAX data by the FAX control processor or to process FAX data received by the FAX control processor by the image processing processor. Alternatively, as described above, as in the case where the ISDN primary group interface adapter performs the D channel for originating and terminating calls as in the ISDN primary group H1 interface communication and performs the H1 channel for performing data communication with the ISDN primary group interface adapter, One communication may be realized by different adapters.

At this time, the above-described method of processing and coordinating data and control of different adapters by the host software 43 has been conventionally performed. For this reason, when the higher-level software 43 performs the cooperative processing between the adapters, there is a problem that a delay in processing time is large, performance is deteriorated, and overhead of the higher-level software 43 is increased.

[0013] The present invention solves these problems.
Provide an inter-adapter coordination mechanism in the main unit channel and an inter-adapter coordination mechanism in each adapter, and cooperate with multiple adapters using these coordination mechanisms in response to the coordination instruction from the host software, and process quickly and efficiently It is intended to be.

[0014]

FIG. 1 is a block diagram showing the principle of the present invention. In FIG. 1, the host software 3 issues a start request to the adapter 8.

The main body channel 4 accepts a start request from the host software 3 and notifies the corresponding adapter 8 of the start request by an interrupt. Adapter 8 ahead
And a notification of a start request.

The adapter 8 performs various processes.

[0017]

According to the present invention, as shown in FIG. 1, the main body channel 4 notified of the start request from the host software 3 passes the start request to the corresponding adapter 8 by interruption, and the adapter 8 receiving the start request transmits the start request to itself. In response to an activation request to the adapter, the processing is performed. On the other hand, when an inter-adapter cooperation instruction is given, the main body channel 4 is notified of the inter-adapter cooperation by an interrupt. The activation request is notified by an interrupt, and the adapter 8 that has received the notification performs a process corresponding to the activation request.

At this time, when the adapter 8 is set to have the inter-adapter cooperation for the passed start request, the monitoring timer is started when the adapter cooperation is notified to the main body channel 4 by an interrupt, and a predetermined time is set. When there is no response even after the elapse, the coordination process is stopped as an error has occurred in the coordination destination adapter 8, and an error state is notified to the host software 3.

Further, when an inoperable error occurs in the adapter 8 of the inter-adapter cooperation destination and the main body channel 4 is notified, the inoperable error is suspended, and then the inoperable error is transmitted from the host software 3. When an activation request is issued to the adapter 8 which has suspended the operation, an inoperable error is responded to the host software 3.

Therefore, an inter-adapter coordination mechanism is provided in the main body channel 4 and an inter-adapter coordination mechanism is provided in each of the adapters 8. In response to a coordination instruction from the host software 3, these coordination mechanisms perform coordination between a plurality of adapters. This makes it possible to perform the cooperative processing quickly and efficiently.

[0021]

Next, the configuration and operation of an embodiment of the present invention will be sequentially described in detail with reference to FIGS.

FIG. 1 is a diagram showing the principle of the present invention. FIG.
The information processing device 1 is a device that performs various types of information processing according to a program, and in this case, includes an OS 2, upper software 3, a main body channel 4, a main body memory 5, and the like.

The OS 2 is an operating system that controls and monitors the entire system. The host software 3 is a program for performing various business processes. In this case, the host software 3 requests the adapter 8 to start and perform various processes.

The main body channel 4 receives an instruction from the host software 3 (actually via the OS, which will be omitted for the sake of simplicity in the following description). After writing to the adapter, the adapter 8 is notified of the activation request by an interrupt,
When the notification of the inter-adapter cooperation is received from the adapter, the start request is notified to the adapter 8 of the inter-adapter cooperation destination, etc. (described later with reference to FIGS. 3 to 7).

The main body memory 5 is a memory provided on the information processing apparatus 1 side, and is for providing the adapter control area 6 here. The data bus 7 is a bus for exchanging data between the information processing device 1 and each adapter 8.

The adapter 8 is an adapter for performing various processing, for example, for performing input / output processing and image processing. FIG. 2 shows a configuration diagram of one embodiment of the present invention. Here, 1 to 7 are equivalent to 1 to 7 in FIG.
Description is omitted.

In FIG. 2, the adapter 8 is
An adapter that performs communication control, and includes a microprogram 9, an adapter management information table 10, an inter-adapter communication control area 11, a buffer / control area 12, and the like.

The microprogram 9 is a microprogram for the adapter 8 and performs various processes corresponding to instructions from the host software 3. Here, it performs inter-adapter cooperation control (FIG. 3). To FIG. 7 to be described later).

The adapter management information table 10 stores all of the adapter management information.
Is passed from the main body channel 4 at the time of initialization.
When the microprogram 9 is specified to perform the coordination process in the operation information setting from the host software 3, the microprogram 9 refers to the adapter management information table 10 to determine whether or not the coordination is possible.

The inter-adapter communication control area 11 is an area for managing the data buffer use area in the adapter control area 6, managing the activation status for the partner machine number, and the like. The buffer / control area 12 is a buffer and control area for processing by the function of the adapter 8.

Next, the operation of the configuration shown in FIGS. 1 and 2 will be sequentially described in detail with reference to FIGS. First, the operation of inter-adapter cooperation in a normal state will be described in detail with reference to FIGS.

In FIG. 3, in S1, the upper software 3 is started. In S2, the activated upper software 3 is CAW,
Perform CCW and data writing. In S3, after writing in S2, the main body channel 4 is activated and passed.

At S4, the main body channel 4 writes CAW and an activation code into the adapter control area 6. In S5, the main body channel 4 activates the adapter (1). This is because the CA written by the main body channel 4 in the adapter control area 6 in S4.
W, the adapter (1) that has been requested to be started by the host software 3 is started to pass the start code and make a start request.

S6 is the adapter (1) activated in S5
Reads the activation information from the adapter control area 6. S7
Is, the adapter (1) analyzes the startup information read in S6.

In S8, it is determined whether or not cooperation is necessary as a result of the analysis in S7. That is, it is determined whether or not the higher-level software 3 has instructed the cooperation between the adapters. In the case of YES, the coordination between the adapters has been instructed, so that the partner information is set in S9. On the other hand, N
In the case of O, the processing instructed by the host software 3 is executed.

In step S10, the adapter (1) writes inter-adapter communication data in the adapter control area 6. S11 is
Write the adapter activation code into the adapter control area 6.

In step S12, the main channel 4 is started by an interrupt. In S13, the monitoring timer is started in response to the activation of the main body channel 4 in S12 and the request for inter-adapter cooperation.

In step S14, the data passed to the main body channel 4 activated by the interrupt in step S13 is analyzed. S15 is
As a result of the analysis in S14, it is determined whether the cooperation is performed. In the case of YES, it is determined that the connection is between the adapters, so that the activation code is written in the adapter control area 6 in S16. On the other hand, in the case of NO, it is determined that there is no inter-adapter cooperation, so the instructed process is performed.

In step S17, the corresponding adapter (2) is started to pass the start request written in the adapter control area 6 in step S16. At step S18, the adapter (2) started at step S17 is analyzed for the passed start request.

In step S19, as a result of the analysis in step S18, it is determined whether or not the cooperation is performed. In the case of YES, the inter-adapter communication data is read from the adapter control area 6 in S20, the response data is written in the adapter control area 6 in S21, the main body channel 4 is started by an interrupt in S22, and the execution of the processing is started in S31. I do.

In S23, the response data written in S21 by the main body channel 4 activated by the interrupt in S22 is analyzed. In S24, it is determined whether the response is a result of the analysis in S23. If YES, the response code is written in the adapter control area 6 in S25, and the adapter (1) is activated by an interrupt in S26. On the other hand, in the case of NO, it is determined that there is no response, and the corresponding processing is performed.

In step S27, the adapter (1) activated in step S26 analyzes the code written in step S25. S2
8 is a response as a result of the analysis in S27. If YES, the start timer is stopped in S29. Thereby, the monitoring timer started when the adapter (1) requests the main body channel 4 to perform the adapter cooperation in S13,
When a response is received in S28, the inter-adapter cooperation is started normally and the operation is stopped. Here, when there is no response, the upper software 3 is notified that an inter-adapter cooperation error has occurred (described later with reference to FIG. 5).

In S31, the adapter (2) requested to be activated by the adapter (1) by the inter-adapter cooperation function starts processing. In step S32, partner information is set.

A step S33 writes the end data to the adapter control area 6. Since the adapter (2) that has received the activation request by the inter-adapter cooperation performs the processing and ends, the end data is written in the adapter control area 6.

A step S34 writes the adapter end code in the adapter control area 6. In S35, the adapter (2) is interrupted to activate the main body channel 4 to transfer the data written in S33 and S34, and to start the monitoring timer in S36.

In step S37, the data passed by the main body channel 4 activated by the interruption in step S35 is analyzed. S38 is
As a result of the analysis in S37, it is determined whether or not the cooperation is performed. If YES, the end code is set in the adapter control area 6 in S39 of FIG.
And the adapter (1) is activated by an interrupt in S40. On the other hand, in the case of NO, it is determined that there is no cooperation, and the corresponding processing is performed.

In step S41, the adapter (1) activated in step S40 analyzes the data passed in step S39. S42
Is determined as the result of the analysis in S41. In the case of YES, the communication data between adapters is read in S43,
At step S44, response data is written. At step S45, the main body channel 4 is started by interruption. At step S53, normal termination processing is performed.
On the other hand, if NO in SS42, it is determined that the processing is not to be terminated, and the corresponding processing is performed.

In step S46, the main channel 4 activated in step S45 analyzes the data written in step S44. S47
Is a response as a result of the analysis in S46. If YES, the response code is written in the adapter control area 6 in S48, and the adapter (2) is activated by an interrupt in S49. On the other hand, if NO in S47, it is determined that there is no response, and the corresponding processing is performed.

In S50, the adapter (2) started in S49 analyzes the data written in S48. S5
1 is a response as a result of the analysis in S50. YE
In the case of S, the monitoring timer is stopped in S52. Thus, the monitoring timer started when the adapter (2) requests the response of the adapter cooperation to the main body channel 4 in S36, and the response at the time of the inter-adapter cooperation normally occurs when the response is made in YES in S51. Stop as expected.
Here, if there is no response, it is determined that an error has occurred in the cooperation between the adapters.

In step S53, the adapter (1) terminates the normal processing. In step S54, the end code and the CSW are written in the adapter control area 6. In step S55, the main body channel 4 is activated by a termination interrupt.

In step S56, the main body channel 4 started in step S55 passes a termination notification to the host software 3. S57 is S5
The upper-level software 3 to which the termination notification has been given in step 6 notifies the host of the termination.

As described above, in response to the host software 3 instructing the main body channel 4 to request activation of inter-adapter cooperation in S2, the main body channel 4 starts the adapter (1), which corresponds here, and cooperates with the adapter. And the adapter (1) passes a start request to the adapter (2) of the adapter cooperation destination via the main body channel 4 to request processing. Then, the end result is received from the adapter (2) via the main body channel 4 by the adapter (1), and the adapter (1) notifies the start-up request source upper software 3 via the main body channel 4 of the end result. Thus, the host software 4 can perform the coordination between the adapter (1) and the adapter (2) only by instructing the coordination between the adapters by the host software 3, and realizes the coordination between the adapters without deteriorating the performance. It becomes possible.

Next, the operation when an error occurs in the cooperation between adapters will be described in detail with reference to FIG. Here, S6
Steps 1 to S77 are the same as steps S1 to S17 in FIG.

In FIG. 5, in S78, the main body channel 4, which has received the request for inter-adapter cooperation from the adapter (1) in S77, writes an activation code in the adapter control area 6 in S76 and activates the adapter (2). Indicates a state in which a failure has occurred in the adapter (2). In a state where a failure has occurred in the adapter (2), the state from S18 to S in FIG.
29, the response cannot be notified to the adapter (1) to stop the monitoring timer.

In S79, a monitoring timeout occurs in the monitoring timer started in S73. S80 is an adapter (2)
Stores error information. In step S81, an error termination process is performed.

In S82, the adapter (1) writes error data to the adapter control area 6. In step S83, the adapter (1) writes the termination code and the CSW to the adapter control area 6.

In S84, the adapter (1) activates the main body channel 4 by a termination interrupt. In S85, the main body channel 4 started in S84 notifies the host software 3 of an error termination notification.

In step S86, the host software 3 that has received the error termination notification in step S85 notifies the host of the error termination. As described above, the monitoring timer is started when the adapter (1) that has received the instruction for inter-adapter cooperation from the host software 3 via the main channel 4 requests the adapter (2) to start inter-adapter cooperation via the main channel 4. When a monitoring time-out occurs after a lapse of a predetermined time, the adapter (1) detects the
The upper software 3 is notified via the interface. Accordingly, the upper software 3 does not receive an error notification from an adapter to which the upper software 3 has not requested to start at the time of cooperation between the adapters, and the upper software 3 can perform a normal error process for the error.

Next, referring to FIGS. 6 and 7, the operation when the adapter at the cooperation destination between the adapters cannot be operated will be described in detail. Here, S91 to S107 in FIG. 6 are the same as S1 to S17 in FIG.

In FIG. 6, in S108, the main body channel 4, which has received the request for inter-adapter cooperation from the adapter (1) in S107, writes an activation code in the adapter control area 6 in S1 and activates the adapter (2). Adapter (2)
Shows a state in which an inoperable error has occurred (a hardware error has occurred). In the state where the inoperable error has occurred in the adapter (2), the response is notified to the adapter (1) in S18 to S29 of FIG. 3 in a normal case, and the monitoring timer cannot be stopped.

In step S109, error information is edited. S11
0 writes inoperable error information in the adapter control area 6. In S111, the adapter (2) starts the main body channel 4 by interruption.

In step S112, the inoperable error information in which the main body channel 4 started in step S111 is written in step S110 is analyzed. In S113, as a result of the analysis in S112, it is determined whether or not the operation is impossible. If YES, the adapter (2) error information is suspended in S114.

In S115, a monitoring timeout occurs.
This is because the monitoring timer starts in S103, and even if a predetermined time has elapsed, the adapter (2) becomes inoperable and a response does not return to the adapter (1), so that a monitoring timeout occurs.

Step S116 stores the adapter (2) abnormality information. In step S117, an error termination process is performed. S118
The adapter (1) writes error data to the adapter control area 6.

In step S119, the adapter (1) writes the termination code and the CSW into the adapter control area 6. S in FIG.
At 120, the adapter (1) activates the main body channel 4 at the termination interrupt.

In step S121, the main body channel 4 started in step S120 notifies the host software 3 of an error termination notification.
In S122, the host software 3 that has received the error termination notification in S121 notifies the host of the error termination.

In S123, the host software 3 receives the activation of the adapter (2) from the host. In S124, the host software 3 performs CAW, CCW, and data writing. S125
, The upper software 3 activates the main body channel 4.

In S126, the main body channel 4 performs analysis. In S127, as a result of the analysis in S126, it is determined whether the activation request is for the adapter (2). If YES, S1
At 28, an inoperable error notification is sent to the host software 3. On the other hand, in the case of NO, the designated processing is performed.

In step S129, the host software 3 notifies the host that the inoperable error has ended. As described above, the adapter (1) that has received the instruction for the inter-adapter cooperation from the host software 3 via the main channel 4 performs the inter-adapter cooperation on the main channel 4
The monitoring timer is started when an activation request is made to the adapter (2) via the monitoring timer. Adapter (2) that received this activation request
When an inoperable error occurs, the inoperable error is notified to the main body channel 4 by an interrupt and is suspended. On the other hand, when a monitoring time-out occurs after a lapse of a predetermined time, the adapter (1) notifies the host software 3 via the main channel 4 as an error of the adapter (2). Then, when a start request to the adapter (2) in which the inoperable error has occurred is notified to the main channel 4, the inoperable error of the adapter (2) reserved by the main channel 4 is notified to the host software 3. . Thereby, the upper software 3 does not receive the notification of the inoperability error from the adapter to which the upper software 3 has not requested to start at the time of the cooperation between the adapters. After that, it is possible to perform processing for suppressing the activation request to the adapter 8 for the inoperable error thereafter.

FIG. 8 is an explanatory view of the information / table of the present invention. FIG. 8A shows an example of the adapter control information.
This shows an example of the adapter control information stored in the adapter control area 6. Here, an ISDN basic interface area and an ISDN primary group interface area are provided. The ISDN basic interface area includes an activation / termination interface area and an area for storing a partner device number, an inter-adapter communication code, and a data length as an inter-adapter communication data area according to the present invention, as shown enlarged on the right side. A data area is provided.

FIG. 8B shows an example of adapter interrupt information. This is information when, for example, the main body channel 4 that has received an interrupt from the adapter (1) at the time of cooperation between the adapters sets adapter interrupt information and starts the adapter (2).

FIG. 8C shows an example of the adapter management table. This is a table in which all mounted adapter model numbers and adapter IDs are registered as one set.
This adapter management table is received by the adapter 8 from the main channel 4 at the time of initialization, is held internally, and is used to check the adapter at the cooperation destination by referring to it during the cooperation between the adapters.

FIG. 8D shows an example of the adapter cooperation information. This is adapter cooperation information from the upper software 3. FIG. 8E shows an example of inter-adapter cooperation information. This is a format to be written in the adapter control area 6 when performing communication between adapters.

FIG. 8 (f) shows an example of communication control information between adapters. This is a table for managing the data area of the adapter control area 6 which is provided in the adapter and used at the time of communication between adapters.

FIG. 9 is a block diagram showing a specific example of the present invention. In FIG. 9, the ISDN basic interface adapter 8
-1 is an adapter having a D channel for controlling incoming and outgoing calls.

ISDN Primary Rate Interface Adapter 8
-2 is an adapter having an HI channel for performing data communication. The other configuration is the same as the configuration in FIG.
Description is omitted.

Next, the operation will be described. (1) After turning on the power of the information processing apparatus 1, IS
Adapter 8-1 for DN basic interface and ISD
A microprogram is loaded into the N primary group interface required adapter 8-2. After the loading is completed, an initialization instruction is issued from the main body channel 4, and the microprogram 9 of the ISDN basic interface adapter 8-1 and the ISDN primary group interface adapter 8-2 is executed.
Transfers and stores the adapter management table from the adapter control area 6 of the main body memory 5 to the adapter management information table 10 in each adapter.

(2) Next, IPL is performed, and the OS 2 starts operating. Then, the host software 3 starts the D channel of the ISDN basic interface adapter 8-1 to instruct the primary channel interface to operate. At this time, any ISDN primary group interface adapter 8-2
Pass the machine number information on whether or not to perform cooperative processing.

(3) From the machine number information passed in (2),
With reference to the adapter management information table 10, the type of the adapter whose device number information matches is determined, and it is confirmed that the adapter is for the ISDN primary group. At this time, if the adapter with the mismatched machine number information or the machine number with the matched machine number is not the adapter for the ISDN primary group interface, it is notified to the host software 3 as an information error.

(4) If the device number information matches, the own IS
The operation mode of the D channel of the DN basic interface adapter 8-1 is set, and when the operation mode can be set normally, the operation mode is written in the data area for communication between adapters in the adapter control area 6 of the main body memory 5.

(5) Next, as shown in FIG.
ISDN Primary Group Interface Adapter 8-
2 is set to the layer 1 control device number and the like, written into the adapter control area 6, and interrupted into the main body channel 4. At the same time,
The microprogram 9 of the ISDN basic interface adapter 8-1 starts a timer and monitors a response from the associated ISDN primary group interface adapter 8-2.

(6) Upon receiving the interrupt, the main body channel 4 checks the interrupt information, and in the case of inter-adapter communication, activates the partner device number to be linked in the activation format shown in FIG. 8B.

(7) The activated ISDN primary group interface adapter 8-2 determines the activation code, and in the case of the activation of the inter-adapter communication, the inter-adapter communication data of the adapter control area 6 of the data passed by the activation code. Read data from area address. When the reading is completed, a response code is written in the adapter control area 6 to return a response to the ISDN basic interface adapter 8-1 on the activation side, and the main body channel 4 is interrupted.

(8) The main body channel 4 judges the response code and interrupts the ISDN basic interface adapter 8-1 on the starting side. Upon detecting the response, the interrupted ISDN basic interface adapter 8-1 stops the timer and makes the inter-adapter communication data area of the used adapter control area 6 usable.

(9) The ISDN primary group interface adapter 8-2 on the coordination side receives the ISDN
An operation mode for activating layer 1 of the primary HI interface is set, and layer 1 is activated.

(10) The ISDN primary group interface adapter 8-2 on the cooperation side that has completed the activation of the layer 1
Notifies the activation-side ISDN basic interface adapter 8-1 of the setting of the operation mode and the fact that the activation of the layer 1 has been completed normally. At this time, the inter-adapter communication processing of the ISDN primary group interface adapter 8-2 on the cooperation side is performed by the ISDN basic interface adapter 8 on the activation side.
As in the case of -1, the information such as the partner device number is written into the communication data area between the adapters in the adapter control area 6, and the main body channel 4
An interrupt is issued to Further, a response monitoring timer is started.

(11) Upon receiving the completion data from the ISDN primary-group interface adapter 8-2 on the cooperative side, the ISDN basic interface adapter 8-1 on the starting side transmits a response indicating the reception via the main body channel 4 Notify to the ISDN primary group interface adapter 8-2 on the cooperation side. Thereby, the ISDN primary group H1
The interface becomes operational.

(12) In the following, when communication becomes possible by the originating ISDN basic interface adapter 8-1 by the incoming / outgoing call of the D channel call control, the starting ISDN basic interface adapter 8-1 communicates between the adapters. The time slot is instructed to the ISDN primary group interface adapter 8-2 on the cooperation side, and
Upon receiving the instruction through the inter-adapter communication, the SDN primary group interface adapter 8-2 first responds to the
This is performed on the SDN basic interface adapter 8-1, and then a time slot is set to enable communication.

(13) After that, the operation mode is set to the H1 channel device number by the host software 3, and the communication process is started. (14) In the above process, when a response monitoring timeout from the ISDN primary group interface adapter 8-2 on the cooperation side occurs in the ISDN basic interface adapter 8-1 on the activation side, the activation ISDN basic interface adapter 8-1 -1 recognizes that some abnormality has occurred in the ISDN primary group interface adapter 8-2 on the cooperation side, and uses the machine number as error information as the upper software 3
Notify. Thereafter, no activation is performed for the machine number.

(15) In the above processing, the I
When a hardware inoperable error occurs in the SDN primary group interface adapter 8-2, the cooperation side ISDN primary group interface adapter 8-2 transfers the hardware error information to the adapter control area 6.
The body channel 4 holds the information. Then, the main body channel 4 notifies the host software 3 of the held hardware information when the operation mode setting activation is performed for the H1 channel device number.

With the above communication, it is possible to realize communication through the ISDN primary group H1 interface.

[0092]

As described above, according to the present invention,
An inter-adapter cooperation mechanism is provided in the main body channel 4 and an inter-adapter cooperation mechanism is provided in each adapter 8.
In response to a coordination instruction from, a configuration such as coordination between a plurality of adapters is adopted by these coordination mechanisms, so that a plurality of adapters can cooperate with each other quickly and efficiently. As a result, a plurality of adapters can be cooperatively processed, and processing can be performed without affecting performance by processing using a microprogram. Further, even when an error occurs, the OS2 does not notify the OS2 of an illegal interrupt than the adapter number recognized by the host software 3, and the error is notified from the host number recognized by the host software 3, and Error processing can be performed.

[Brief description of the drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is a configuration diagram of one embodiment of the present invention.

FIG. 3 is an explanatory diagram of the operation of the present invention (No. 1, in a normal state).

FIG. 4 is an explanatory diagram of the operation of the present invention (No. 2, in a normal state).

FIG. 5 is an explanatory diagram of the operation of the present invention (when an error occurs).

FIG. 6 is an explanatory diagram of the operation of the present invention (No. 1 when operation is not possible).

FIG. 7 is an explanatory diagram of the operation of the present invention (when operation is disabled, part 2).

FIG. 8 is an explanatory diagram of information / table of the present invention.

FIG. 9 is a configuration diagram of a specific example of the present invention.

FIG. 10 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1: Information processing device 2: OS 3: Host software 4: Main body channel 5: Main body memory 6: Adapter control area 7: Data bus 8: Adapter 8-1: Adapter for ISDN basic interface 8-2: ISDN primary group interface Adapter 9: Microprogram 10: Adapter management information table 11: Communication control area between adapters 12: Buffer / control area

Continuation of front page (56) References JP-A-59-38865 (JP, A) JP-A-4-305750 (JP, A) JP-A-3-72755 (JP, A) JP-A-2-298140 (JP) JP-A-58-97944 (JP, A) JP-A-5-334220 (JP, A) JP-A-6-161927 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB Name) G06F 13/00 G06F 13/10 H04L 29/00

Claims (4)

(57) [Claims] 1. A system for controlling the coordination between adapters when a start request is notified from a host software.
Means for notifying the corresponding adapter of an activation request by an interrupt after setting information in the control area; and responding to notifying the adapter of the activation request, the adapter reads information of the adapter control area and
Top Symbol Ada when analyzed between the adapter and cooperation has been determined that the required
Information and communication data between adapters in the
After setting, means for receiving the inter-adapter cooperation notified by the interrupt, and when receiving the inter-adapter cooperation, the adapter corresponding to the received inter-adapter cooperation is notified of the activation request by an interrupt and notified. The above adapter control area in the adapter
Means for performing a corresponding process based on the inter-adapter communication data set in the channel. 2. In an adapter for cooperating between adapters, after setting information from a channel to an adapter control area.
The means for receiving when the start request by the interrupt has been notified, the start request thus received, the adapter control region
Analyzes the information set performs its processing when the start request for itself, whereas, in the channel when the adapter between cooperation instruction, destination information to the adapter control region
And an interrupt notification means after setting communication information and communication data between adapters. 3. The method according to claim 2, wherein the activation request passed to said adapter is an adapter.
The above channel is set when the
Monitor when the adapter is
Ima has started, and there is no response even after the specified time elapses
When an error occurs, the linked adapter is linked
Stop processing and notify error status to host software
2. The channel according to claim 1, wherein the channel is configured as follows. 4. An operation failure of the adapter at the link destination between the adapters.
When an error occurs and the main channel is notified.
Hold the inoperable error and then
It is necessary to start the adapter that has suspended the inoperable error.
When a request is received, an inoperative error is returned to the host software.
2. The switch according to claim 1, wherein
Chanel.