System and method for improved transfer of data between multiple

Details System and method for improved transfer of data between multiple System and method for improved transfer of data between multiple

1997-10-15

2000-10-03

Shin, Christopher B.

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

710107, 710 18, G06F 1336

Patent

active

06128677&

ABSTRACT:
A controller is provided, for use in a processing system containing a plurality of processors operable to communicate with a plurality of I/O devices, for directing a first I/O request issued by a first selected one of the plurality of processors to a targeted one of the I/O devices. The controller device comprises a counter for counting a number of retries associated with the first I/O request and comparison circuitry for comparing a count value in the counter with a first predetermined limit, wherein the controller, in response to a determination that the count value in the counter exceeds the first predetermined limit, blocks all other I/O requests issued by the plurality of processors from being directed to the targeted I/O device.

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