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Scalable I/O adapter function level error detection, isolation, and reporting

  • US 8,645,767 B2
  • Filed: 06/23/2010
  • Issued: 02/04/2014
  • Est. Priority Date: 06/23/2010
  • Status: Active Grant
First Claim
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1. A system for implementing scalable input/output (I/O) function level error detection, isolation, and reporting, the system comprising:

  • an I/O hub communicatively coupled to a computer processor, system memory and at least one I/O adapter, the at least one I/O adapter including a function and the I/O hub including logic for implementing a method, the method comprising;

    detecting an error in a communication initiated between the function and the system memory, the communication including an I/O request from an application;

    preventing future communication between the function and the system memory in response to the detecting;

    notifying the application that the error in communication occurred in response to the detecting; and

    creating an error entry in the system memory in response to the detecting, the error entry identifying the function in error and a specific error condition detected by the I/O hub,wherein the error entry is written to a location in the system memory specified as an offset from an error log base address, and wherein the offset is based on an identification number of the at least one I/O adapter.

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