Interrupt control apparatus, interrupt control system, interrupt control method, and interrupt control program

An interrupt control system, comprising:

• a controlled object;
• an interrupt control apparatus coupled to the controlled object for providing controls on an interrupt from an accelerator for communication processing to a CPU, by switching interrupt control modes between an interrupt permission mode and an interrupt mask mode, based on a signal transmitted to or received from the controlled object;
• and
• an interface for enabling communication between the controlled object and the interrupt control apparatus,
• wherein the interrupt control apparatus includes:
• a storage part that stores therein an interrupt control timing table containing a switching condition of the interrupt control modes based on communication contents indicating a state of the controlled object, a temporal condition for determining whether or not the switching condition of the interrupt control mode is satisfied, and an appropriate interrupt control mode to which the interrupt control mode is to be switched if the switching condition of the interrupt control mode is satisfied;
• a transmission/reception part that transmits or receives the signal to or from the interrupt control apparatus;
• and
• an interrupt control mode switching part that is coupled to the storage part, and the transmission/reception part and that switches the mode of the interrupt control to the CPU, based on the transmitted or received signal and information on the switching condition stored in the storage part.

An interrupt control method performed by an interrupt control apparatus for providing controls on an interrupt from an accelerator for communication processing to a CPU, by switching interrupt control modes between an interrupt permission mode and an interrupt mask mode, based on a signal transmitted to or received from an outside controlled object, comprising:

• storing an interrupt control timing table containing a switching condition part of the interrupt control modes based on communication contents indicating a state of the controlled object, a temporal condition for determining whether or not the switching condition of the interrupt control mode is satisfied, and an appropriate interrupt control mode to which the interrupt control mode is to be switched if the switching condition of the interrupt control mode is satisfied;
• analyzing contents of a received packet and setting a determination criteria for an interrupt control mode switching within the interrupt control timing table;
• and
• switching the mode of the interrupt control to the CPU, based on the signal transmitted to or received from outside and the switching condition information in the storage part.

An interrupt control apparatus for providing controls on an interrupt from an accelerator for communication processing to a CPU, by switching interrupt control modes between an interrupt permission mode and an interrupt mask mode, based on a signal transmitted to or received from an outside controlled object, comprising:

• a storage part that stores therein an interrupt control timing table containing a plurality of switching conditions, where each switching condition of the plurality of switching conditions defines conditions which must be satisfied to permit a switch of the interrupt control mode to a designated interrupt control mode, each said each switching condition including interrupt control timing fields of:
• an elapsed time which must pass as measured from a predetermined reference;
• a predefined condition;
• and the designated interrupt control mode to switch to if at least one of the elapsed time and the predefined condition is satisfied;
• a transmission/reception part that transmits or receives the signal to or from the interrupt control apparatus;
• and
• an interrupt control mode switching part that is coupled to the storage part and the transmission/reception part, and that switches the mode of the interrupt control to the CPU, based on the transmitted or received signal and at least one switching condition of the plurality of switching conditions having been satisfied.