Paul Huu Nguyen

US Patent:

6516367, Feb 4, 2003

Filed:

Jun 24, 1999

Appl. No.:

09/339707

Inventors:

Michael Anton Barenys - Austin TX
Douglas Michael Boecker - Rochester MN
Joel Gerard Goodwin - Austin TX
Paul Nguyen - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1300

US Classification:

710109, 710104, 713 2

Abstract:

A method, system and computer program product are provided for detecting the presence of devices, particularly hot plug devices, connected to a bus both during start-up of a computer system and while the system is running. At start-up, and periodically thereafter, all possible device connections are polled by microprocessors, called sub-bus controllers, which include logic for generating a map of components present on each bus. Each map is accessible by the master bus controller. During system run-time, periodic polling, may be continuous thereby providing a real time device status map for every available bus connection.

US Patent:

6801206, Oct 5, 2004

Filed:

Mar 1, 2001

Appl. No.:

09/798285

Inventors:

Joshua Nathan Poimboeuf - Austin TX
Paul Nguyen - Austin TX
Sayileela Nulu - Austin TX
Steve Xu - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G09G 536

US Classification:

345556, 345544, 711153, 711173

Abstract:

A method and apparatus for providing a computer system having a plurality of logical partitions with a virtual operator panel is disclosed. The method and apparatus include displaying a plurality of operator panels on a single console corresponding to each of the logical partitions, and providing a buffer for each logical partition. The status codes from each of the logical partitions are then written directly to the corresponding buffer. To display the status codes of one of the logical partitions, the status code from the buffer corresponding the logical partition is read and sent to the corresponding operator panel for display.

US Patent:

7539932, May 26, 2009

Filed:

Jun 17, 2004

Appl. No.:

10/870536

Inventors:

Debbie Ann Anglin - Austin TX, US
Jon David Mason - Austin TX, US
Paul Nguyen - Austin TX, US
Brian Michael Rzycki - Austin TX, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 11/00

US Classification:

714799

Abstract:

A system is disclosed and claimed for debugging Ethernet adapters and Ethernet adapter device drivers by automatically monitoring Ethernet adapter functionality and automatically turning on debug traces upon detecting incorrect Ethernet adapter functionality. An embodiment maintains a counter representing the number of incorrect Ethernet adapter functionality events minus the number of correct Ethernet adapter functionality events. If the counter reaches a threshold value, the Ethernet adapter device driver automatically enables debug traces for storing functionality information to a trace table.

US Patent:

20080291835, Nov 27, 2008

Filed:

May 21, 2007

Appl. No.:

11/751323

Inventors:

Omar Cardona - Austin TX, US
James Brian Cunningham - Austin TX, US
Paul Nguyen - Austin TX, US

International Classification:

G06F 11/00
H04L 12/56

US Classification:

370241, 370412

Abstract:

A computer implemented method, apparatus, and computer usable program code for managing buffers. A number of buffers present in a pool of buffers assigned to a network device driver are monitored, wherein the buffers in the pool of buffers are used to process packets of data for transmission onto a network. A request is denied from a transport layer for a buffer from the pool of buffers if the number of buffers falls below a threshold level, wherein at least one buffer is present in a buffer pool if the number of buffers falls below the threshold level.