Patent · US Active

Non-standard I/O adapters in a standardized I/O architecture

US8615622B2 · kind B2 · utility

3Cited by

161References

24Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Thomas A. Gregg · Highland, US
Gerd Bayer · Stuttgart, DE
David F. Craddock · New Paltz, US
Michael Jung · Frankfurt am Main, DE
Eric N. Lais · Tillson, US
Elke G. Nass · Ehningen, DE

Key dates

Filing date	Jun 23, 2010
Grant date	Dec 24, 2013
Priority date	—
Expiry date	Dec 25, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F2213/0026
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A system for implementing non-standard I/O adapters in a standardized I/O architecture, the system comprising an I/O hub communicatively coupled to an I/O bus and at least one I/O adapter, the I/O hub including logic for implementing a method, the method comprising receiving a request to perform an operation on the I/O adapter from a requester at a requester address, the I/O adapter at a destination address, determining that the request is in a format other than a format supported by the I/O bus, the I/O bus expecting a requester identifier at a first location in a header of the request, reformatting the request into the format supported by the I/O bus, the reformatting comprising storing the requester address, the destination address and an operation code at the first location in the header of the reformatted request, and sending the reformatted request to the I/O adapter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.