Method and electric device for interacting cache descriptors

Abstract

The invention discloses a method and an electric device for interacting cache descriptors. According to the electric device, a terminal device is internally and additively provided with an agency module, inlets of a BD (backward diode) transmission queue and a BD receiving queue are provided by the agency module for each process core, and pointer operation is carried out on the BD transmission queue and the BD receiving queue by the agency module, so that the writing operation of each process core to the BD transmission queue and the reading operation of each process core to the BD receiving queue can be guaranteed through the agency module, and the several-for-one completion of each process core to the indicator operation can be further avoided. Furthermore, after the method and the electric device can used, a self-rotating lock and a polling core do not need to be arranged in a multi-core CPU (central processing unit), so that the reduction of the whole efficiency of the multi-core CPU can be avoided.

Description

technical field [0001] The present invention relates to data forwarding technology, and in particular to a method and electronic device for realizing interaction of buffer descriptors (Buffer Description, BD). Background technique [0002] With the development of technology, multi-core CPUs are increasingly used in electronic devices such as routers. Moreover, in order to enrich the extended functions of electronic equipment, the multi-core CPU is usually equipped with a logic chip (such as FPGA or ASIC chip) integrating different functional modules, and the multi-core CPU is connected to the logic chip through a data bus. Among them, the PCIE (Pedpherd Component Interconnect Express, Peripheral Component Interconnect Express) bus can well meet the interconnection between multi-core CPUs and logic chips due to its high speed and good scalability. When the data bus adopts the PCIE bus, the logic chip can be called a PCIE terminal (Endpoint) device. [0003] figure 1 shows ...

AI Technical Summary

Problems solved by technology

[0014] It can be seen that the prior art adopts spin locks or dedicates a processing core to polling, which affects the overall efficiency of multi-core CPUs.

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