Is there any interruption in the linux protocol stack?

There is an interrupt mechanism in the Linux protocol stack. In the Linux kernel, the processing of network data packets is usually triggered by interrupts. When the network interface receives the data packet, a hardware interrupt will be triggered, and then the kernel will respond accordingly. Handle this interrupt efficiently and perform subsequent network data packet processing operations. The interrupt mechanism allows the kernel to respond to incoming network data in a timely manner and process it with the lowest delay.

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

There is an interrupt mechanism in the Linux protocol stack. In the Linux kernel, the processing of network packets is usually triggered by interrupts. When the network interface receives a data packet, a hardware interrupt is triggered, and then the kernel handles the interrupt accordingly and performs subsequent network packet processing operations.

Specifically, when the network interface receives a data packet, the hardware will trigger an interrupt signal, which will guide the kernel to execute an interrupt handler. In the interrupt handler, the kernel will complete a series of operations, such as receiving and processing data packets, updating protocol status, etc. After processing, the interrupt handler will return and continue to perform other tasks.

The interrupt mechanism is very important for real-time and high-performance network packet processing. It enables the kernel to respond promptly to incoming network data and process it with minimal latency.

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