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System and method for file based I/O directly between an application instance and an I/O adapter

  • US 20070168567A1
  • Filed: 08/31/2005
  • Published: 07/19/2007
  • Est. Priority Date: 08/31/2005
  • Status: Abandoned Application
First Claim
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1. A computer program product comprising a computer usable medium having a computer readable program, wherein the computer readable program, when executed on an input/output (I/O) adapter, causes the I/O adapter to:

  • receive, from a queue of an application instance, in response to a file name based I/O request generated by the application instance, the file name based I/O request including one or more file name based work requests, a doorbell message identifying a number of work requests to be added to a processing queue of the I/O adapter;

    generate a processing queue entry in the processing queue of the I/O adapter based on the number of work requests to be added to the processing queue identified in the doorbell message; and

    process at least one work request in the application instance'"'"'s queue based on the processing queue entry in the processing queue of the I/O adapter.

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