| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for controlling a data transferring device, a data transferring device, a storage device controller, a method for controlling the storage device controller, and a channel adaptor for efficiently utilizing a CPU. SOLUTION: This data transfer device is provided with a memory equipped with a queue which stores data transfer information including information to specify a first storage region and information to specify a second storage region, a first processor which registers the data transfer information in the queue, and a DMA controller (DMAC) equipped with a register which executes data transfer processing to transfer data stored in the first storage region to the second storage region. The first processor writes a stop command being a command showing the stop of the data transfer processing to be performed by the DMAC in the register of the DMAC, and the DMAC reads the data transfer information registered in the queue, and after executing data transfer processing based on the read data transfer information, the DMAC stops the following data transfer processing registered in the queue when the data stop command is set in the register. COPYRIGHT: (C)2005,JPO&NCIPI
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