Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output expansion
Reexamination Certificate
2011-03-29
2011-03-29
Hafiz, Tariq (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output expansion
C710S008000, C710S015000, C710S032000
Reexamination Certificate
active
07917658
ABSTRACT:
An apparatus and method are provided that enable I/O devices to be shared among multiple operating system domains. The apparatus has a first plurality of I/O ports, a second I/O port, and link training logic. The first plurality of I/O ports is coupled to a plurality of operating system domains through a load-store fabric. Each of the first plurality of I/O ports is configured to route transactions between the plurality of operating system domains and the switching apparatus. The second I/O port is coupled to a first shared input/output endpoint. The first shared input/output endpoint is configured to request/complete the transactions for each of the plurality of operating system domains. The link training logic is coupled to the second I/O port. The link training logic initializes a link between the second I/O port and the first shared input/output endpoint to support the transactions corresponding to the each of the plurality of operating system domains. The link is initialized in a manner that is transparent to the plurality of operating system domains.
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Zurawski, Richard, The Industrical Communication Technology Handbook, 2005 CRC Press, Chap
Khan Asif
Pagan Annette
Pekkala Richard E.
Pettey Christopher J.
Utley Robert Haskell
Emulex Design and Manufacturing Corporation
Hafiz Tariq
Huffman James W.
Huffman Richard K.
Sun Scott
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