Independent computer storage addressing in input/output transfers

A method and apparatus for performing direct memory address (DMA) operations between a requestor and responder device by prestoring, for each device, a logical token and offset value which is recognizable by the device as an indicia to identify one or more local memory addresses within the device, a...

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Hauptverfasser: LUIZ, FERNANDO A, COOK, ROBERT B, NORDSTROM, GREGORY M, SACHS, MARTIN W, THORN, CARYL A, CALTA, SALVATORE A
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creator LUIZ
FERNANDO A
COOK
ROBERT B
NORDSTROM
GREGORY M
SACHS
MARTIN W
THORN
CARYL A
CALTA
SALVATORE A
description A method and apparatus for performing direct memory address (DMA) operations between a requestor and responder device by prestoring, for each device, a logical token and offset value which is recognizable by the device as an indicia to identify one or more local memory addresses within the device, and initiating a DMA operation within the requestor device by the requestor device transferring the token and offset value to the responder device, the responder device identifying a responder device local memory address by translation of the token and offset value, and the responder device accessing the identified responder local memory address for data transfer, associated with the token and offset, and the requestor device identifying a requestor device local memory address for completing the data transfer.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Independent computer storage addressing in input/output transfers
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