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:
Feb. 02, 2010
Filed:
Dec. 19, 2006
Douglas M. Freimuth, New York, NY (US);
Renato J. Recio, Austin, TX (US);
Claudia A. Salzberg, Austin, TX (US);
Steven M. Thurber, Austin, TX (US);
Jacobo A. Vargas, Cedar Park, TX (US);
Douglas M. Freimuth, New York, NY (US);
Renato J. Recio, Austin, TX (US);
Claudia A. Salzberg, Austin, TX (US);
Steven M. Thurber, Austin, TX (US);
Jacobo A. Vargas, Cedar Park, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Mechanisms for migration stateless virtual functions from one virtual plane to another are provided. When a migration of a source virtual function to a destination virtual function in another virtual plane is to be performed, a source single root PCI manager (SR-PCIM) is first interrupted by a multiple root PCI manager (MR-PCIM). Configuration information that defines the source virtual function is then redefined on the destination virtual function for this stateless migration. A function level reset may then be performed on the source virtual function. The destination SR-PCIM may be interrupted by the MR-PCIM with an interrupt for the destination virtual function. A function level reset may then be performed on the destination virtual function. The destination virtual function state may then be changed to an 'active' state such that the migrated virtual function begins processing transactions.