System and method for routing I/O expansion requests and responses in a PCIE architecture

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8745292
APP PUB NO 20110320653A1
SERIAL NO

12821245

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Abstract

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A system for implementing non-standard input/output (I/O) adapters in a standardized I/O architecture, comprising an I/O hub communicatively coupled to an I/O bus and a plurality of I/O adapters at I/O adapter addresses, the I/O hub including logic for implementing a method comprising receiving requests from the plurality of I/O adapters, storing the I/O adapter addresses of a requester along with their corresponding target recipient addresses and operation codes, receiving a response from a responder, the response indicating that a request has been completed, determining that the response is in a format other than a format supported by the I/O bus, transforming the response into the format supported by the I/O bus, locating a stored I/O adapter address having a corresponding target recipient address that matches the responder address and a corresponding operation code that matches the responder operation code, and transmitting the response to the stored I/O adapter address.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Craddock, David F New Paltz, US 100 3462
Gregg, Thomas A Highland, US 185 3829
Lais, Eric N Tillson, US 70 712

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