Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture
Reexamination Certificate
2008-09-30
2008-09-30
Myers, Paul R. (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus interface architecture
C710S104000
Reexamination Certificate
active
11260621
ABSTRACT:
Method and system for address routing in a distributed computing system, such as a distributed computing system that uses PCI Express protocol to communicate over an I/O fabric. A destination identifier is provided to identify a physical or virtual host or end point. When a physical or virtual host or end point receives a PCI data packet it compares a list of source identifiers with destination identifiers to determine if a source identifier included in the transaction packet is associated with a destination identifier included in the transaction packet to determine if the transaction packet has a valid association. If the transaction packet has a valid association, it is routed to the target device. The present invention enables each host that attaches to PCI bridges or switches and shares a set of common PCI devices to have its own PCI 64-bit address space and enables the routing of PCI transaction packets between multiple hosts and adapters, through a PCI switched-fabric bus using a destination identifier.
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Boyd William T.
Freimuth Douglas M.
Holland William G.
Hunter Steven W.
Recio Renato J.
Glanzman Gerald H
Myers Paul R.
Stiglic Ryan M
Yee Duke W.
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