Method for realizing unload protocol stack based on multi-core processor and hybrid operating system

Abstract

The invention discloses a method for realizing unload protocol stack based on a multi-core processor and a hybrid operating system, which comprises the steps of dividing the unload protocol stack into an unload protocol stack unit running in a simple executive environment or a real-time operating system and an unload protocol adaption layer running in a Linux operating system, realizing information interaction between the unload protocol adaption layer and the unload protocol stack unit by use of message mechanism, wherein the unload protocol stack unit executes protocol process of layer-4 and under in an OSI (open system interconnection) network model, the unload protocol stack unit adaption layer provides standard socket interface on the Linux operating system for the unload protocol stack unit. The method provides an interface of the standard Linux network application development and management and provides the high-performance TCP / IP (transmission control protocol / internet protocol) processing ability for users.

Description

technical field [0001] The invention relates to a method for realizing an offload protocol stack based on a multi-core processor and a mixed operating system. Specifically, a multi-core processor runs a Linux operating system and a real-time operating system or a simple execution environment at the same time. The system provides a standard BSD socket interface to the unloading protocol stack unit, and realizes the protocol processing of layer 4 and below in the specific OSI network model on the real-time operating system or simple execution environment. Background technique [0002] The TCP protocol stack is widely used in various fields of the Internet, such as the HTTP protocol, the FTP protocol, and the RTSP protocol are all implemented based on the TCP protocol. However, processing the TCP protocol will generate a large amount of system overhead, resulting in an increase in processor utilization, which will affect the operation of other programs in the operating system. ...

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Problems solved by technology

[0004] Most embedded platforms use the Linux operating system, and they also face the problem of high overhead when processing the TCP protocol, especially when the main frequency of the processor is low, the overhead of processing the TCP protocol will directly affect the performance of other programs, so it is necessary to propose A reasonable solution reduces the system overhead of the Linux operating system to process the TCP protocol, reasonably allocates the computing resources of the processor, and improves the overall performance of the embedded platform

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