设备驱动模式，在设备须要内核关注时，由设备主动发送一个硬件信号(通常是通过一个中断)给内核。

Driven on the device side. The device sends a hardware signal (by generating an interrupt) to the kernel when it needs the kernel's attention.

youdao

本文通过实验对这四种数据包捕获方法进行评估，并且分析了NAPI模式和中断模式对数据包捕获方法的影响。

In this thesis, all of four methods are evaluated experimentally, and influences of NAPI and interrupt model on packet capture are analyzed.

youdao