Hardware shunt method of IP report

Abstract

The invention relates to a hardware shunt method of an IP report. In the technical scheme of the invention, a received IP report is shunted by a piece of network card hardware; the source address and the target address of an IP report title are extracted when the IP report is received by a network card; Hash algorithm is then employed to calculate tread to which the IP report belongs; and a DMA channel scheduling module starts up a DMA engine according to tread number to transmit the report to a main storage buffer area to which the tread belongs; in order to support hardware shunt strategy of the IP report, an upper-layer software ensures each tread to have a special main storage buffer area; the network card starts up the threads of a plurality of IP packages to correspond to the treadsof host processing IP packages one to one; the treads of the host processing IP packages directly acquires data from a memory buffer area for processing; therefore, the transmission of intermediate data does not need a CPU, thereby reducing the CPU load. The hardware tread number supported by the method is as high as 1024 and even as higher as 4096 or 8192. The best configuration is that each CPUis corresponding to one tread, so that each tread operates independently without mutual interference; moreover, the best performance is achieved due to the least system resource sharing.

Description

technical field [0001] The invention relates to a server network IP message transmission hardware distribution method Background technique [0002] In the multi-channel multi-core server environment of the high-speed network access system, in order to make full use of the processing capability of each processor core, different IP packet streams are often assigned to different processor cores for processing, and each processor core processes and runs One thread processes packets. [0003] The traditional method is that the network card transmits all received IP packets to the same area of ​​the main memory, and the upper layer software has a scheduling thread to assign different IP packet streams to different processors according to the information in the IP packet header. nuclear. In the traditional method, the memory data movement overhead, the operating system switching overhead, and the upper-layer software overhead are very large, especially when the communication load...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcoming of poor performance in the heavy load situation of the traditional shunting method, and adopt hardware on the network card to realize IP packet shunting and improve system performance

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