System and method for low-overhead monitoring of transmit...

Details System and method for low-overhead monitoring of transmit... System and method for low-overhead monitoring of transmit...

2007-02-13

2007-02-13

Fleming, Fritz (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S034000, C710S056000, C710S057000, C710S264000, C710S260000, C710S261000, C710S263000, C710S266000, C709S213000

Reexamination Certificate

active

10173985

ABSTRACT:
A queue monitoring system and method determines when one or more transmit queues have reached a state that requires action by the host processing device, without the need for periodic polling of transmit status or excessive interrupt servicing. The queue monitoring implements an interrupt mechanism that generates an interrupt if one or more of the transmit queues has gone from a non-empty state to an empty state, and remained in the empty state for a (programmable) period of time. The combination of queue status checking (when adding new transmit data) with the queue monitoring interrupt mechanism removes the need for periodic polling of queue status and handling of interrupts generation on the completed transmission of data from one or more transmit buffer.

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European Search Report for Appl. No. EP 03 00 1895, dated May 26, 2003, 4 pages.

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