Early notification of error via software interrupt and shared memory write
US7685476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | May 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2089
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of providing error notification in a storage subsystem includes writing a first defined value by a host adapter of the storage subsystem 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 value by the host adapter. A system for providing error notification in a storage subsystem includes a controller including a serial management interface (SMI) register subcomponent, a first processing component connected to the controller having a kernel module, and a second processing component connected to the controller executing host adapter software.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.