* This is only my own learning note *NAPI (New API) and Parallel Processing with SoftirqsThe polling mechanism in NAPI (New API) is implemented using softirqs, which allows for efficient and parallel packet processing across multiple CPUs. This design leverages the softirq infrastructure in the Linux kernel to handle network packet processing with minimal latency and high throughput.How NAPI Utilizes Softirqs for PollingInitial Packet Handling:When packets arrive at the network interface card...