Message receiving method and network device

Abstract

The embodiment of the invention relates to a technology of message processing and particularly relates to a message receiving method and a network device. The method is applied to a multi-core CPU. The multi-core CPU comprises a master core and a plurality of slave cores. The master core is used for determining an operation state of each slave core of the plurality of slave cores and maps the operation state of each slave core through a bit map. The method comprises the steps that in the plurality of slave cores, a first slave core operating in a kernel mode determines whether an interruption signal from an interruption controller is a packet receiving interruption signal or not; and if the interruption signal is the packet receiving interruption signal, the first salve core writes a memory address of a message into a shared memory shared by a user mode and the kernel mode in an interruption process, thereby enabling the address of the message to be seen by the slave kernels in the kernel mode and the user mode, wherein the steps performed by the first slave core are performed based on a preset special register, and the preset special register is the register which is only used by the slave core in the kernel state. According to the message receiving method and the network device provided by the embodiment of the invention, the message receiving efficiency can be improved.

Description

technical field [0001] The embodiment of the present invention relates to a message processing technology, in particular to a message receiving method and network equipment. Background technique [0002] With the rapid development of network technology, there are more and more network applications, and the scale of traffic is also increasing. The traditional 10G router or firewall is gradually replaced by TB (TrillionByte, megabyte) level equipment. How to quickly collect and store large-volume data for subsequent business processing has become an important research direction today. [0003] In the prior art, the conventional message receiving method is mostly based on interrupt receiving, and the specific process includes: after the network interface receives the message, the interrupt controller sends an interrupt request signal to the CPU (Central Processing Unit, central processing unit), and the CPU After receiving the interrupt request signal, suspend the current main...

AI Technical Summary

Problems solved by technology

[0004] As can be seen from the above message receiving method, in order to continue to execute the main processing process from the interrupted point after the message is received, the CPU needs to save the scene of the main processing process every time it is interrupted, and resume the main processing process when the interrupt occurs site, the process of saving and restoring the site not only occupies CPU resources, but also affects the efficiency of message reception

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