1
Hung Y Sze: Circuit and method for rapid checking of error correction codes using cyclic redundancy check. QLogic Corporation, Knobbe Martens Olson & Bear, July 18, 2000: US06092231 (168 worldwide citation)

A circuit and method use a cyclic redundancy check (CRC) unit to check any errors detected by an error correction code (ECC) unit when reading a sector of bytes from a disk in a disk drive. The CRC unit reads the sector of bytes from the disk simultaneously with the ECC unit. The CRC unit begins gen ...


2
Todd Matters, Todd Rimmer, Duane McCrory, Joseph David Coyne: System and method for implementing logical switches in a network system. Qlogic Corporation, March 27, 2007: US07197572 (132 worldwide citation)

A shared I/O subsystem for a plurality of computer systems where a plurality of virtual I/O interfaces are communicatively coupled to the computer systems. Each of the computer systems includes a virtual adapter that communicates with one of the virtual I/O interfaces. The shared I/O subsystem also ...


3
William W Dennin, Theodore C White: Methods for context switching within a disk controller. Qlogic Corporation, Knobbe Martens Olson & Bear, June 4, 2002: US06401149 (126 worldwide citation)

The present invention is related to methods and systems for context switching within a disk controller, allowing controller processors to efficiently switch between multiple tasks. In a first mode, a first memory is used to temporarily store data being transferred between a disk storage device coupl ...


4
Charles Micalizzi Jr, Dharma R Konda, Chandru M Sippy: Method and apparatus for automatically transferring I/O blocks between a host system and a host adapter. Qlogic Corporation, T J Singh Klein O&apos Neill & Singh, October 26, 2004: US06810440 (107 worldwide citation)

An input/output (I/O) host adapter in an I/O system processes I/O requests from a host system to a plurality of I/O devices. The host adapter includes a circuit to automatically transfer I/O requests from host memory to adapter memory. The host adapter also includes a circuit to automatically transf ...


5
William W Dennin, Theodore C White: Systems and methods for a disk controller memory architecture. QLogic Corporation, Knobbe Martens Olson & Bear, December 11, 2001: US06330626 (98 worldwide citation)

The present invention is related to systems and methods for a disk controller memory. In one embodiment, a mass storage device is interfaced to a computer via an I/O bus using a mass storage device controller. The mass storage device controller includes a processor and a buffer memory configured to ...


6
Shishir C Shah, Thomas W Thompson, David K Wagner: Systems and methods for network and I/O device drivers. QLogic Corporation, Knobbe Martens Olson & Bear, October 22, 2002: US06470397 (98 worldwide citation)

The present invention is directed to systems and methods for transferring storage data and network data using the same interface circuit. Storage data is transferred from an upper layer storage driver to a lower layer storage driver. Network data is transferred from a network driver to the lower lay ...


7
William C Terrell, Tracy Edmonds, Wayland Joeng, Eric Russell Peterson, Jean Kodama, Harun Muliadi, Norman Chan, Rexford Hill, Michael Nishimura, Stephen How: Router with routing processors and methods for virtualization. QLOGIC Corporation, Klein O Neill & Singh, April 22, 2008: US07362702 (87 worldwide citation)

A router for use in a network includes a scalable architecture and performs methods for implementing quality of service on a logical unit behind a network port; and for implementing storage virtualization. The architecture includes a managing processor, a supervising processor; and a plurality of ro ...


8
Charles Micalizzi Jr, Dharma R Konda, Chandru M Sippy: Method and apparatus for automatically transferring I/O blocks between a host system and a host adapter. Qlogic Corporation, TJ Singh Klein O&apos Neill & Singh, May 13, 2003: US06564271 (77 worldwide citation)

An input/output (I/O) host adapter in an I/O system processes I/O requests from a host system to a plurality of I/O devices. The host adapter includes a circuit to automatically transfer I/O requests from host memory to adapter memory. The host adapter also includes a circuit to automatically transf ...


9
William Clinton Terrell, Wayland Jeong, William W Chow, Gordon Larimer: System and method of providing network node services. QLOGIC Corporation, Klein O Neill & Singh, November 4, 2008: US07447197 (63 worldwide citation)

A network node for processing messages transmitted via a network, the node including: a first circuit providing a processor-based node path; a second circuit, coupled to the first circuit, providing a switch-based node path; and a memory storing mapping information accessible by the first and second ...


10
Edward C McGlaughlin: Method and system for routing information in a network. QLOGIC Corporation, Klein O Neill & Singh, April 22, 2014: US08706905 (62 worldwide citation)

Method and system for a network is provided. The system includes a computing system operationally coupled to a first switch via a first adapter; a first storage system operationally coupled to the first switch via a second adapter; and a second switch operationally coupled to the first switch and to ...