Reliable notification of interrupts in a network processor by prioritization and policing of interrupts

Patent metadata

Field	Value
Publication number	US-8930604-B2
Application number	US-201213551002-A
Country	US
Kind code	B2
Filing date	Jul 17, 2012
Priority date	Jul 17, 2012
Publication date	Jan 6, 2015
Grant date	Jan 6, 2015

Abstract

In a data network, a node determines whether to handle data-dependent events using the node's hardware interrupt buffer or instead using an available fallback action. The node classifies each detected event as being one of a plurality of different categories of events and determines, based on the classified category, whether to handle the detected event using the hardware interrupt buffer of the node. Each different event category can be assigned its own scale factor, where the available (i.e., currently unused) capacity of the hardware interrupt buffer is allocated based on those programmed scale factors. If the node determines to handle the detected event using the hardware interrupt buffer, then the node stores a hardware interrupt corresponding to the detected event in the hardware interrupt buffer. Otherwise, the node handles the detected event using a fallback action.

First claim

What is claimed is:

1. A node-implemented method for handling events by a node in a data network, the node-implemented method comprising:
(a) processing data received at the node to detect an event;
(b) classifying the detected event as being one of a plurality of different categories of events;
(c) determining, based on the classified category of the detected event, whether to handle the detected event using a hardware interrupt buffer of the node, wherein step (c) comprises:…

Assignees

• Pazhayakath Benzeer Bava Arackal
• Narayanan Santosh
• Lsi Corp

Inventors

• Pazhayakath Benzeer Bava Arackal
• Narayanan Santosh

Classifications

• G06F13/24 Primary

  Physics · mapped topic