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Ugochukwu Njoku
Ugochukwu Charles Njoku, Frank W Brice Jr, David Craddock, Richard K Errickson, Mark S Farrell, Charles W Gainey Jr, Donald W Schmidt, Gustav E Sittmann III: Virtualization of an I/O adapter port using enablement and activation functions. International Business Machines Corporation, Eugene I Shkurko, April 3, 2007: US07200704 (91 worldwide citation)

A method for configuring a communication port of a communications interface of an information handling system into a plurality of virtual ports. A first command is issued to obtain information indicating a number of images of virtual ports supportable by the communications interface. A second comman ...


2
Ugochukwu Njoku
Ugochukwu Charles Njoku, Frank W Brice Jr, David Craddock, Richard K Errickson, Mark S Farrell, Charles W Gainey Jr, Donald W Schmidt, Gustav E Sittmann III: Information handling system with virtualized I/O adapter ports. International Business Machines Corporation, John E Campbell, October 20, 2009: US07606965 (41 worldwide citation)

A communication port of a communications interface of an information handling system comprises a plurality of virtual ports. A first command is issued to obtain information indicating a number of images of virtual ports supportable by the communications interface. A second command is then issued req ...


3
Ugochukwu Njoku
Anthony F Coneski, David Craddock, Mark S Farrell, Charles W Gainey JR, Beth A Glendening, Thomas A Gregg, Dan F Greiner, Ugochukwu C Njoku: Enable/disable adapters of a computing environment. International Business Machines Corporation, December 29, 2011: US20110320638-A1

An adapter is enabled for use. The enabling includes assigning one or more address spaces to the adapter, based on a request. For each address space assigned to the adapter, a corresponding device table entry is assigned. When the adapter is no longer needed, it is disabled and the assigned device t ...


4
Ugochukwu Njoku
Ugochukwu Charles Njoku, Frank W Brice, David Craddock, Richard K Errickson, Mark S Farrell, Charles W Gainey, Donald W Schmidt, Gustav E Sittmann: Information handling system with virtualized i/o adapter ports. International Business Machines Corporation, International Business Machines Corporation, June 21, 2007: US20070140266-A1

A communication port of a communications interface of an information handling system comprises a plurality of virtual ports. A first command is issued to obtain information indicating a number of images of virtual ports supportable by the communications interface. A second command is then issued req ...


5
Ugochukwu Njoku
Ugochukwu Charles Njoku, Frank W Brice, David Craddock, Richard K Errickson, Mark S Farrell, Charles W Gainey, Donald W Schmidt, Gustav E Sittmann: Virtualization of an I/O adapter port using enablement and activation functions. International Business Machines Corporation, October 12, 2006: US20060230219-A1

A method is provided for configuring a communication port of a communications interface of an information handling system into a plurality of virtual ports. A first command is issued to obtain information indicating a number of images of virtual ports supportable by the communications interface. A s ...


6
George H Bean, Terry L Borden, Mark S Farrell, Peter H Gum, Roger E Hough, Francis E Johnson, Donald W McCauley, Mark E Rakhmilevich, John C Rathjen, Casper A Scalzi, John F Scanlon, Leslie W Wyman: Logical resource partitioning of a data processing system. International Business Machines Corporation, Bernard M Goldman, June 27, 1989: US04843541 (296 worldwide citation)

The embodiment discloses a method and means for partitioning the resources in a data processing system into a plurality of logical partitions. Host control code may be embodied in programming, microcode, or by special hardware to enable highly efficient operation of a plurality of preferred guest pr ...


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Richard K Errickson, Mark S Farrell, Charles W Gainey Jr, Thomas A Gregg, Carol B Hernandez, Donald W Schmidt: Memory mapped Input/Output operations. International Business Machines Corporation, Cantor Colburn, June 19, 2007: US07234037 (55 worldwide citation)

A method of performing memory mapped input output operations to an alternate address space comprising: establishing a first instruction directed to a first memory mapped input output alternate address space associated with an adapter to store data in accordance with a definition of a z/Architecture; ...


8
Eberhard Engler, Mark S Farrell, Klaus Meissner, Ronald M Smith Sr: Method and apparatus for adjusting a time of day clock without adjusting the stepping rate of an oscillator. International Business Machines Corporation, Scully Scott Murphy & Presser P C, Geraldine D Monteleone Esq, April 8, 2008: US07356725 (26 worldwide citation)

A system, method and computer program product for steering a time-of-day (TOD) clock for a computer system having a physical clock providing a time base for executing operations that is stepped to a common oscillator. The method includes computing a TOD-clock offset value (d) to be added to a physic ...


9
Mark S Farrell, Charles W Gainey, Jeffrey P Kubala, Damian L Osisek: Method and apparatus for managing the execution of a broadcast instruction on a guest processor. International Business Machines Corporation, William A Kinnaman Jr, March 27, 2007: US07197585 (19 worldwide citation)

A method and apparatus for managing the execution on guest processors of a broadcast instruction requiring a corresponding operation on other processors of a guest machine. Each of a plurality of processors on an information handling system is operable either as a host processor under the control of ...


10
Patrick J Meaney, Mark S Farrell, Liyong Wang, Rebecca S Wisniewski: Method, system and computer program product for processing error information in a system. International Business Machines Corporation, Cantor Colburn, John Campbell, June 5, 2012: US08195986 (18 worldwide citation)

A system for processing errors in a processor comprising, a first register having a unique identifier operative to store a first error data, a processor operative to retrieve the first error data from the first register, associate the first error data with the unique identifier, and generate a first ...



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