A content search chip and system based on peripheral component interconnection bus

Abstract

A content searching chip and system based on a peripheral component interconnect (PCI) bus. The content searching chip includes a peripheral component interconnect interface module, a protocol conversion module, and a content storage module. The content storage module is connected to the protocol conversion module using an instruction bus and a data bus. The peripheral component interconnect interface module acquires a first processing layer data packet using the peripheral component interconnect bus; the protocol conversion module acquires the first processing layer data packet from a parallel bus provided between the protocol conversion module and the peripheral component interconnect interface module, parses and converts the first processing layer data packet to an operation request and data; the content storage module stores content, performs an operation according to the operation request, and returns operation response data; the instruction bus transmits the operation request, and the data bus transmits the data.

Description

technical field [0001] The invention relates to the field of communication and information technology, in particular to a content search chip and system based on an interconnection bus of peripheral components. Background technique [0002] In the field of communications, hardware lookup tables are all completed through content storage modules, wherein content storage modules can be implemented by ternary content addressable memory (TCAM) chips or content addressable memory (CAM) chips, and newer TCAM chips or CAM chips use communication interfaces, such as high-speed serial interface protocol (InterlakenLookAside, Interlaken-LA) interfaces, or dedicated CAM interfaces to send and receive serial data packets. Therefore, the data written to TCAM chips or CAM chips Operation requests, data to be written, key values, and operation response data generated by TCAM chips or CAM chips need to be packaged into serial data packets, and then input or output on the Interlaken-LA interf...

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Problems solved by technology

[0005] In the above-mentioned prior art solutions, since an FPGA chip needs to be installed and logic development work is carried out on it, the application threshold is relatively high. In addition, the power consumption of the FPGA chip is often very large, so the use of the FPGA chip will increase the power consumption and increase the cost. In addition, since the FPGA chip needs to convert the physical layer data transmitted in the interconnection bus of the peripheral components into serial data packets, the conversion of the data format will also lead to a long time for data processing

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