Bidirectional message processing method based on unified user mode channel

By creating associations between virtual interfaces and hardware virtual function instances in user-space virtual switches, establishing a unified user-space channel and building extended metadata, the problems of high CPU idle rate, high memory consumption, and increased packet processing latency caused by large-scale virtual function representative ports are solved, thereby improving system performance and virtual machine deployment density.

CN122179399AActive Publication Date: 2026-06-09BEIJING LINX SOFTWARE CORP
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Patent Information

Application Number
CN202610652041.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-13
Publication Date
2026-06-09
Estimated Expiration
2046-05-13

AI Technical Summary

Technical Problem

In existing technologies, the polling of large-scale virtual function representative ports leads to problems such as high CPU idle rate, excessive memory consumption, and increased packet processing latency, especially in cloud computing and data center virtualization networks, and particularly in hyper-converged and high-performance cloud scenarios, which affects CPU resource utilization and virtual machine deployment density.

Method used

A bidirectional packet processing method based on a unified user-space channel is adopted. By creating an association between virtual interfaces and hardware virtual function instances in the user-space virtual switch, a shared bidirectional packet transmission path is established, and extended metadata containing hardware virtual function instance identifiers is constructed to achieve hardware-software co-processing, reducing invalid polling and memory consumption.

Benefits of technology

It effectively solves the problems of CPU resource idleness and high memory consumption, improves message processing efficiency, reduces latency, and increases virtual machine deployment density and system performance.

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Abstract

The invention relates to a bidirectional message processing method based on a unified user mode channel, belongs to the technical field of virtualized communication, and solves the problems of high CPU idling rate, high memory occupation and aggravated message processing delay caused by polling of large-scale virtual function representative ports in the prior art. Comprising the following steps: creating a virtual interface and an association relationship between the virtual interface and a hardware virtual function instance identifier in a user mode virtual switch; establishing a user mode channel as a bidirectional message transmission path shared between the plurality of hardware virtual function instances and the user mode virtual switch; constructing extended metadata containing a hardware virtual function instance identifier, and obtaining transmission data according to the extended metadata and the to-be-processed message; and transmitting, receiving and analyzing the transmission data through the user mode channel to obtain the to-be-processed message and the extended metadata, further determining a forwarding rule of the to-be-processed message, and executing forwarding of the to-be-processed message. The polling-free acceleration processing of the bidirectional message is realized, and the memory resource occupation is obviously reduced.
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