Method and apparatus for efficient sharing of DMA resource

Details Method and apparatus for efficient sharing of DMA resource Method and apparatus for efficient sharing of DMA resource

2006-01-31

2006-01-31

Shin, Christopher B. (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S308000

Reexamination Certificate

active

06993598

ABSTRACT:
A method, apparatus, and computer instructions for managing direct memory access transfers. Monitoring is performed for an event to pass ownership of a direct memory access resource to a new thread. A buffer of the new thread is added by an operating system component to the end of a direct memory access chain of requests from the current thread. The addition of this buffer to the end of a direct memory access chain provides an anchor point for the new thread to add additional requests for the direct memory access resource.

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