Deep Dive into DPDK NIC RX/TX Flow

[胡兴菊]

Hello DPDK team,


I'd like to submit the following technical content for consideration in the DPDK newsletter.


Title: DPDK网卡收发报文流程深度解析 (Deep Dive into DPDK NIC RX/TX Flow)
Link: https://github.com/huxingju/dpdk-source-analyzer/blob/main/NIC_RX_TX_FLOW.md


Type: Technical deep dive / Developer blog


Description:
This article provides a comprehensive analysis of DPDK's RX/TX data path, covering:
- Hardware architecture: RX/TX FIFO, DMA engine, descriptor ring
- Software layer: rte_mbuf structure, driver implementation (ixgbe as example)
- Relationship between hardware descriptor, SW ring, and mbuf
- Performance optimization techniques: batching, prefetching, NUMA awareness


**About the creation process:**
This article was human-directed and AI-assisted. As a developer with 8+ years of network development experience, I:
- Defined the scope, structure, and key technical points
- Guided the AI to generate specific sections
- Reviewed, corrected, and validated all technical content


The final result reflects my expertise and has been verified for technical accuracy.


Best regards,
Huxingju
GitHub: github.com/huxingju
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