JPH0654031A - Communication processing system - Google Patents

Abstract

PURPOSE:To allow a communication processing unit to share partly a load of a central processing unit by making an interface between communication protocol processing means in common so as to enhance the compatibility. CONSTITUTION:A communication protocol processing means 110 sends transmission data to a communication protocol processing means 111 based on an inter- common layer interface. The communication protocol processing means 111 starts a communication protocol processing means 170 in a communication processing unit 150 by the inter-common layer interface via an I/O interface conversion means 120 and a common request interface conversion means 160 to send data. In the case of data reception, the communication protocol processing means 170 informs reception data to the communication protocol processing means 111 via an interrupt interface conversion means 161 and a common notice interface conversion means 121.

Description

Detailed Description of the Invention

[0001]

The present invention is used for controlling a communication processing device in information processing. INDUSTRIAL APPLICABILITY The present invention is suitable for controlling a communication processing device of a system that needs to have various types of communication interfaces. The present invention relates to a communication processing system capable of removing a hardware dependent part to improve compatibility and performing load distribution with a communication processing device.

[0002]

2. Description of the Related Art Conventionally, in this type of communication processing system, as shown in FIG. 3, a communication line 380 is connected to a central processing unit 300.
Is connected to the central processing unit 300, and the first communication protocol processing unit 310 is connected to the central processing unit 300.
And a second communication protocol processing means 320. The second communication protocol processing means 320 includes an I / O command processing means 321 and an interrupt acceptance processing means 322, and the communication processing device 350 uses the communication protocol processing. Means 3
60, and the communication protocol processing means 360 includes
I / O command processing means 361 and interrupt processing means 36
2 is included.

In the conventional communication processing system configured as described above, the program executed by the communication protocol processing means is created with a strong awareness of the I / O system and the interrupt system between the central processing unit and the communication control unit. The program executed by the communication protocol processing means in the communication processing device is created so as to operate in an environment different from that of the central processing unit, and both have adopted completely different implementation methods.

[0004]

In the control of the above-mentioned conventional communication processing device, first, the communication protocol processing program located in the lowest layer in the central processing device activates the communication processing protocol processing program in the communication processing device. In order to do so, I / O processing must be performed. Therefore, the communication protocol processing program in the lowest layer needs to incorporate processing that depends on the hardware characteristics of the central processing unit and the communication processing unit, and when porting to another model, change the hardware-dependent part again. There is a problem to be addressed.

Further, since the communication protocol processing program in the communication processing device is created in an operating environment different from that in the central processing device, the communication protocol processing program created to operate on the central processing device. Does not operate in the communication processing device, and vice versa, so it is not possible to implement appropriate distribution of programs according to the system load situation, resulting in an inflexible implementation form. is there.

The present invention solves such a problem, and an object of the present invention is to provide a system capable of removing a hardware-dependent part to improve compatibility and distributing a load with a communication processing device. .

[0007]

According to the present invention, there is provided a central processing unit and a communication processing unit connected between the central processing unit and a communication line, wherein the central processing unit and the communication processing units are plural. In the communication processing system including the communication protocol processing means of the hierarchy, the communication protocol processing means in the communication processing apparatus is activated by accessing the central processing unit through a common inter-layer interface defined between the layers. A communication that includes an input / output interface conversion means, converts the input / output command issued from the central processing unit to the common inter-layer interface, and operates in the same environment as the communication protocol in the central processing unit. A common request interface conversion unit for notifying the protocol processing unit is provided.

When the communication protocol processing means for processing data reception from the communication line notifies the central processing unit by the common inter-layer interface, the communication processing unit sets the common inter-layer interface to the central processing unit. The central processing unit is provided with an interrupt interface conversion unit for converting into an interrupt system depending on a bus system, and the central processing unit is a communication protocol process created based on an I / O completion notified by an interrupt from the communication processing unit based on an interface between common layers. In order to notify the means, it is preferable to provide a common notification interface conversion means for converting the common inter-layer interface.

[0009]

When the central processing unit transmits data to the communication line, the communication processing unit is accessed through the common inter-layer interface defined between the layers and the communication protocol processing means in the communication processing unit is activated. . The communication processing unit converts the input / output command issued from the central processing unit into an interface between common layers, and notifies the communication protocol processing means operating in the same environment as the communication protocol in the central processing unit of the command.

When the communication processing device receives data from the communication line, the communication protocol processing means converts the common inter-layer interface into the interrupt system based on the bus system with the central processing unit and transmits the data, and notifies by the interrupt. In order to notify the communication protocol processing means created based on the interface between common layers, the completed input / output is converted into an interface between common layers.

As a result, the interface between the communication protocol processing means can be made common. Further, it is possible to improve compatibility by removing the hardware dependent part, and perform load distribution between the central processing unit and the communication processing unit.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment of the present invention.

The embodiment of the present invention comprises a central processing unit 100,
A communication processing unit 150 connected to a communication line 180 is connected to the central processing unit 100, and the central processing unit 100 and the communication processing unit 150 respectively include communication protocol processing means 110, 111 and 170 of a hierarchy, and further, the present invention. The input / output (hereinafter referred to as I / O) that activates the communication protocol processing means 170 in the communication processing device 150 by accessing the central processing unit 100 via a common inter-layer interface defined between layers Interface conversion means 120 and communication processing device 1
A common notification interface conversion unit 121 for converting the I / O completion notified by an interrupt from 50 to the communication layer processing unit 111 created based on the common layer interface; The communication processing device 150 converts the I / O command issued from the central processing device 100 into a common inter-layer interface, and notifies the communication protocol processing means 170 that operates in the same environment as the communication protocol in the central processing device 100. When the common request interface conversion means 160 and the communication protocol processing means 170 for processing the data reception from the communication line 180 notify the central processing unit 100 by the common inter-layer interface,
An interrupt interface conversion unit 161 for converting an interface between common layers into an interrupt system depending on the bus system with the central processing unit 100.

Next, the operation of the embodiment of the present invention thus constructed will be described.

When the transmission data is generated, the communication protocol processing means 110 transmits the data to the communication protocol processing means 111 based on the common inter-layer interface. The communication protocol processing means 111 includes an I / O interface converting means 120 and a communication processing device 150.
The communication protocol processing means 170 is activated by the common inter-layer interface via the common request interface converting means 160.

At this time, the I / O interface conversion means 120 converts the common inter-layer interface into an I / O command and activates the common request interface conversion means 160. The common request interface conversion means 160 uses the I / O.
The command is converted into the common request interface, the communication protocol processing means 170 is activated, and the transmission data is passed. Data transmission is performed by such an operation.

When the communication processing device 150 receives data from the communication line 180, the communication protocol processing means 1
70 notifies the communication protocol processing means 111 of the received data via the interrupt interface converting means 161 and the common notification interface converting means 121 of the central processing unit 100.

At this time, the interrupt interface conversion means 161 converts the common inter-layer interface into an interrupt interface and activates the common notification interface conversion means 121. Common notification interface conversion means 1
21 converts the accepted interrupt into a common notification interface and activates the communication protocol processing means 111.
Data reception is performed by such an operation.

FIG. 2 is a block diagram showing the configuration of an application example according to the present invention. This is a move of the communication protocol processing means 111 shown in FIG. 1 to the communication processing device 150. Since the communication protocol processing means 111 does not have a hardware dependent part, such a configuration change is possible.

[0020]

As described above, according to the present invention, the hardware characteristics of the central processing unit and the communication processing device can be achieved without the lowest layer communication protocol processing means in the central processing device including a hardware dependent part. It is possible to realize a software configuration that is independent of, and therefore, it is possible to realize a program configuration with excellent compatibility with other models.

Further, since the communication protocol processing means can be appropriately distributed between the central processing unit and the communication processing unit according to the load state of the system, it is possible to realize a flexible system configuration. There is.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing an application example of the embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a conventional example.

[Explanation of symbols]

100, 200, 300 Central processing unit 110, 111, 170, 210, 270, 271, 3
10, 320, 360 communication protocol processing means 120, 220 I / O interface conversion means 121, 221 common notification interface conversion means 150, 250, 350 communication processing device 160, 260 common request interface conversion means 161, 261 interrupt interface conversion means 180 280, 380 Communication lines 321, 361 I / O command processing means 322 Interrupt acceptance processing means 362 Interrupt processing means

Claims (3)

[Claims] 1. A central processing unit, and a communication processing unit connected between the central processing unit and a communication line, wherein the central processing unit and the communication processing unit have a plurality of layers of communication protocol processing means. In a communication processing system including, the central processing unit comprises an input / output interface conversion unit for activating a communication protocol processing unit in the communication processing unit by accessing through a common inter-layer interface defined between layers. In the communication processing device, the input / output command issued from the central processing device is converted into an interface between common layers,
A communication processing system comprising: a common request interface conversion means for notifying a communication protocol processing means operating in an environment similar to the communication protocol in the central processing unit. 2. The communication processing device, when communication protocol processing means for processing data reception from the communication line notifies the central processing device by means of a common inter-layer interface, sets the common inter-layer interface to the central processing device. 2. The communication processing system according to claim 1, further comprising an interrupt interface conversion means for converting into an interrupt system depending on the bus system of. 3. The common inter-layer interface is provided for the central processing unit to notify the communication protocol processing means created based on the common inter-layer interface of the input / output completion notified by the interrupt from the communication processing unit. The communication processing system according to claim 1, further comprising a common notification interface conversion unit that converts the information into a common notification interface.