The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2011
Filed:
Mar. 31, 2008
Richard Louis Arndt, Austin, TX (US);
Patrick Allen Buckland, Austin, TX (US);
Harvey Gene Kiel, Rochester, MN (US);
Renato John Recio, Austin, TX (US);
Jaya Srikrishnan, Wappingers Falls, NY (US);
Richard Louis Arndt, Austin, TX (US);
Patrick Allen Buckland, Austin, TX (US);
Harvey Gene Kiel, Rochester, MN (US);
Renato John Recio, Austin, TX (US);
Jaya Srikrishnan, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus, and computer program product are disclosed in a shared processor data processing system for coordinating error reporting for and resetting of a physical I/O adapter that supports virtualization. The physical I/O adapter is virtualized by generating virtual I/O adapters that each represent a portion of the physical I/O adapter. Each one of the virtual I/O adapters is assigned to a different one of client logical partitions. A determination is made regarding whether the physical I/O adapter may have experienced an error. If the physical I/O adapter has experienced an error, all of the client logical partitions are notified about the error and a recovery of the physical I/O adapter is coordinated among all of the client logical partitions by waiting for each client logical partition to acknowledge the error notification before the physical I/O adapter is reset.