Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Reexamination Certificate
2005-02-25
2009-06-09
Sorrell, Eron J (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
C710S009000, C710S010000, C710S026000, C710S268000, C711S005000, C711S006000, C711S202000
Reexamination Certificate
active
07546386
ABSTRACT:
A method for directly sharing a network stack offload I/O adapter that directly supports resource virtualization and does not require a LPAR manager or other intermediary to be invoked on every I/O transaction is provided. The present invention also provides a method, computer program product, and distributed data processing system for directly creating and initializing one or more virtual resources that reside within a physical adapter, such as a PCI, PCI-X, or PCI-E adapter, and that are associated with a virtual host. Specifically, the present invention is directed to a mechanism for sharing conventional PCI (Peripheral Component Interconnect) I/O adapters, PCI-X I/O adapters, PCI-Express I/O adapters, and, in general, any I/O adapter that uses a memory mapped I/O interface for host to adapter communications. A mechanism is provided for directly creating and initializing one or more virtual resources that reside within a physical adapter, such as a PCI, PCI-X, or PCI-E adapter, and that are associated with a virtual host.
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Arndt Richard Louis
Biran Giora
Kiel Harvey Gene
Makhervaks Vadim
Recio Renato John
Gerhardt Diana R.
International Business Machines - Corporation
Phan Dean
Sorrell Eron J
Yee & Associates P.C.
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