Response device, integrated circuit of same, response method, and response system

摘要

The present invention performs efficient data transfer between devices. In particular, the present invention can reduce processing loads and power consumption of a response device and increase overall throughput. When a request device issues a direct transfer request to directly transfer data to or from a data storage unit included in the response device, the response device performs control so that data is directly transferred between a communication unit and the data storage unit. The request device is allowed to transparently and directly access the data storage unit included in the response device via the communication unit between the request device and the response device.

主权项

1. A response device that responds to a request from a request device, comprising:
a communication device that performs communication with the request device; a non-transitory recording medium including memory that stores data therein, the non-transitory recording medium interpreting an access command issued to the non-transitory recording medium and performing processing with respect to the memory; control circuitry that controls the communication device and the non-transitory recording medium; and a processor that determines whether or not the request from the request device is a direct transfer request to directly transfer data to or from the non-transitory recording medium, wherein the processor determines whether or not the request from the request device is the direct transfer request based on (i) a device ID of the request device included in the request from the request device and (ii) a data type of data extracted from the request from the request device, such that the processor determines the request from the request from the request device is the direct transfer request in a case where (i) the device ID of the request device is registered with response device in advance and (ii) the data type of the data extracted from the request from the request device is an access command or data to be transferred to the non-transitory recording medium, the non-transitory recording medium only processes an access command from the control circuitry when the control circuitry has a right to access the non-transitory recording medium, when the processor determines affirmatively,
the control circuitry assigns a right to access the non-transitory recording medium to the communication device,the communication device directly transfers, to the non-transitory recording medium, an access command issued from the request device to the non-transitory recording medium, andthe non-transitory recording medium interprets and processes the access command.