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. 29, 2016
Filed:
Jan. 12, 2010
Ellen M. Bauman, Rochester, MN (US);
Harvey G. Kiel, Rochester, MN (US);
Timothy J. Schimke, Stewartville, MN (US);
Lee A. Sendelbach, Rochester, MN (US);
Ellen M. Bauman, Rochester, MN (US);
Harvey G. Kiel, Rochester, MN (US);
Timothy J. Schimke, Stewartville, MN (US);
Lee A. Sendelbach, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Virtualizing a host USB adapter in a virtualized environment maintained by a hypervisor, the hypervisor administering one or more logical partitions, where virtualizing includes receiving, by the hypervisor from a logical partition via a logical USB adapter, a USB Input/Output ('I/O') request, the logical USB adapter associated with a USB device coupled to the host USB adapter; placing, by the hypervisor, a work queue element ('WQE') in a queue of a queue pair associated with the logical USB adapter; and administering, by an interface device in dependence upon the WQE, USB data communications among the logical partition and the USB device including retrieving, with direct memory access (‘DMA’), USB data originating at the USB device from the host USB adapter into a dedicated memory region for the logical USB adapter.