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Interrupt Driven Queueing for Communication Between Two Processors

IP.com Disclosure Number: IPCOM000061248D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Graham, CS Sheppard, FP [+details]

Abstract

A method is provided for interrupt driven queueing for communication between two processors. One processor is a control store processor (CSP) and the other is a personal computer (PC). The PC provides the CSP with support of emulated workstations and communications. The CSP sends I/O requests to these PC I/O devices. The CSP issues an I/O request by placing the request on a queue in shared memory. The PC pulls requests off the request queue, processes them, and posts the corresponding request completions on another queue in shared memory. This method does not stop the CSP while an I/O request is being processed. Further, multiple I/O requests can be processed at one time allowing both the PC and the CSP to be more efficient.