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Early Notification of Error Via Software Interrupt and Shared Memory Write

  • US 20080126651A1
  • Filed: 09/12/2006
  • Published: 05/29/2008
  • Est. Priority Date: 09/12/2006
  • Status: Active Grant
First Claim
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1. A method of providing error notification in a storage subsystem, comprising:

  • writing a first defined value to a system management interrupt (SMI) register to generate a hardware interrupt;

    registering and handling the hardware interrupt by a kernel module of the storage subsystem;

    writing a second defined value to a shared memory location of the storage subsystem by the kernel module; and

    reading a shared memory offset location by a host adapter of the storage subsystem.

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