Method for achieving counting control of counter and network chip

Abstract

The invention provides a method for achieving counting control of a counter. According to the method for achieving the counting control of the counter, the periodical counting state of the counter in a network chip is diagnosed through a package generator and a message processing engine, the fact that a processor samples the counter continuously to confirm the state of the counter is avoided, and the calculation performance of the processor is guaranteed. The invention further provides the network chip applying the method.

Description

technical field [0001] The invention relates to a network chip control technology, in particular to a method for realizing counter counting control and a network chip. Background technique [0002] Today's network is developing at an astonishing speed. The growth of network traffic and the continuous emergence of new services require network equipment to have rapid and flexible processing capabilities. Also getting higher and higher. Usually, there are many types of counters in the network chip, which are used to realize port statistics, flow statistics, etc., and each entry of the counter defines a certain number of BIT bits, and its width determines the maximum value of the counter, such as 10 BIT, then The maximum value is 1023. If it exceeds this value, it will overflow and reverse, and start counting again from 0. [0003] At present, the usual method to prevent network chip counter count overflow is: the driver uses a timer to periodically poll the counter value and ...

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Problems solved by technology

[0004] However, the disadvantage of this counting method is that it requires the processor to continuously sample the counter, which imposes a large computational burden on the processor.

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