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:
Nov. 07, 2006
Filed:
May. 15, 2003
David Alan Bailey, Kasson, MN (US);
Trung Ngoc Nguyen, Rochester, MN (US);
Gregory Michael Nordstrom, Pine Island, MN (US);
Kanisha Patel, Cedar Park, TX (US);
Steven Mark Thurber, Austin, TX (US);
David Alan Bailey, Kasson, MN (US);
Trung Ngoc Nguyen, Rochester, MN (US);
Gregory Michael Nordstrom, Pine Island, MN (US);
Kanisha Patel, Cedar Park, TX (US);
Steven Mark Thurber, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, program product and method propagate errors detected in an IO fabric element from an IO fabric that is used to couple a plurality of endpoint IO resources to processing elements in a computer. In particular, such errors are propagated to the endpoint IO resources affected by the IO fabric element in connection with recovering from the errors in the IO fabric element. By doing so, a device driver or other program code used to access each affected IO resources may be permitted to asynchronously recover from the propagated error in its associated IO resource, and often without requiring the recovery from the error in the IO fabric element to wait for recovery to be completed for each of the affected IO resources. In addition, an IO fabric may be dynamically configured to support both recoverable and non-recoverable endpoint IO resources. In particular, IO fabric elements within an IO fabric may be dynamically configured to enable machine check signaling in such IO fabric elements in response to detection that an endpoint IO resource is non-recoverable in nature. The IO fabric elements that are dynamically configured as such are disposed within a hardware path that is defined between the non-recoverable resource and a processor that accesses the non-recoverable resource.