Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-05-29
2007-05-29
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C370S412000
Reexamination Certificate
active
10388071
ABSTRACT:
A method, apparatus, and computer program product are provided for implementing a receive function over an interconnect network, such as InfiniBand. A virtual lane (VL) with a pending packet for a queue pair (QP) is selected. Then the pending packet is checked for an exceptional condition. Responsive to identifying the exceptional condition for the pending packet, a state bit is set for freezing the selected VL; and an interrupt is generated to firmware. Responsive to receiving the interrupt, the firmware determines a cause for freezing the selected VL and performs a responsive action. For example, the responsive action performed by firmware includes firmware performing an error recovery procedure (ERP) for the QP; firmware updating a state for the QP; or firmware performing application unique processing for the QP.
REFERENCES:
patent: 6898752 (2005-05-01), Tucker
patent: 6904545 (2005-06-01), Erimli et al.
patent: 2003/0091055 (2003-05-01), Craddock et al.
patent: 2003/0226085 (2003-12-01), Tucker
patent: 2004/0120336 (2004-06-01), Hendel et al.
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Carnevale Michael Joseph
Graham Charles Scott
Moertl Daniel Frank
Schimke Timothy Jerry
Beausoliel Robert
McCarthy Christopher
Pennington Joan
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