SELECTION OF A DOMAIN OF A CONFIGURATION ACCESS

A data processing system includes an input/output (I/O) host bridge to which at least one I/O adapter is coupled by an I/O link. In a register of the I/O host bridge, a configuration partitionable endpoint (PE) field is set to identify a PE to be used for an I/O configuration operation. Thereafter,...

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Hauptverfasser:	THURBER STEVE, LAIS ERIC N
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
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creator	THURBER STEVE LAIS ERIC N
description	A data processing system includes an input/output (I/O) host bridge to which at least one I/O adapter is coupled by an I/O link. In a register of the I/O host bridge, a configuration partitionable endpoint (PE) field is set to identify a PE to be used for an I/O configuration operation. Thereafter, the host bridge initiates the I/O configuration operation on the I/O link and determines if an error occurred for the I/O configuration operation. In response to a determination that an error occurred for the I/O configuration operation, an error state is set in the I/O host bridge only for the PE indicated in the configuration PE field of the register in the I/O host bridge, wherein I/O configuration errors are isolated to particular PEs.
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subjects	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
title	SELECTION OF A DOMAIN OF A CONFIGURATION ACCESS
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