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:
Jun. 23, 2009
Filed:
May. 23, 2005
William Todd Boyd, Poughkeepsie, NY (US);
John Lewis Hufferd, San Jose, CA (US);
Agustin Mena, Iii, Austin, TX (US);
Renato John Recio, Austin, TX (US);
Madeline Vega, Austin, TX (US);
William Todd Boyd, Poughkeepsie, NY (US);
John Lewis Hufferd, San Jose, CA (US);
Agustin Mena, III, Austin, TX (US);
Renato John Recio, Austin, TX (US);
Madeline Vega, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides a method that enables application instances to pass block mode storage requests directly to a physical I/O adapter without run-time involvement from either the local operating system or hypervisor. In one aspect of the present invention, a mechanism is provided for determining whether a user space operation is a resource management operation of a work processing operation. If the user space operation is a resource management operation, appropriate functions are performed to either query, create, modify or destroy resource allocations in the I/O adapter. If the user space operation is a work processing operation, appropriate functions are performed to create work queue entries and inform the I/O adapter of the work queue entries and to retrieve completion queue entries for work queue entries whose processing has been completed by the I/O adapter.