rte_node_mbuf_dynfield(3)

📦
version 25.11.3 · 4 versions
, in ubuntu resolute, ubuntu stonking

🌸 NAME 🌸

rte_node_mbuf_dynfield — bestie, this is one of those rte_node-specific mbuf dynamic field structs (rte_node_mbuf_dynfield_t) and it's lowkey carrying the whole graph walk on its back 💅

(Also hi, this is a page from the Library Functions Manual, section 3, iykyk.)

✨ SYNOPSIS ✨

#include <rte_node_mbuf_dynfield.h>

🎀 Data Fields

  • rte_node_mbuf_overload_fields_t overloadable_data — the overloadable mbuf fields that can shift around during the graph walk. The fields that can change. It's giving main character energy, honestly.

💖 Detailed Description 💖

okay so. This is the rte_node specific mbuf dynamic field structure, aka [rte_node_mbuf_dynfield_t]. No cap, that's its whole identity.

It's holding two types of fields, and the way they're so different is a whole vibe:

  1. Persistent fields — these are the fields that get preserved across nodes during the graph walk. They just stay, iconic behavior, no drama.
    • Eg: rx/tx interface etc ✨
  2. Overloadable fields — these are the ones that can be repurposed by two adjacent nodes. Sharing is caring, bestie.
Located at line 71 of file rte_node_mbuf_dynfield.h, if you need to go look at it with your own two eyes 👀

🦋 Field Documentation 🦋

rte_node_mbuf_overload_fields_t overloadable_data

Overloadable mbuf fields across graph walk. Literally the fields which can change — that's the whole point of them.

Two adjacent nodes (a producer and a consumer) can use this memory region to share per-mbuf specific information. So cute, so collaborative 🫶 But here's the plot twist: once the mbuf leaves a consumer node, this region can be repurposed by another sets of [producer, consumer] node. Reused, recycled, reinvented. Periodt.

On the fast path, this region can be accessed by rte_node_mbuf_overload_fields_get(). That's your way in. That's the door 🔑

Nestled at line 92 of file rte_node_mbuf_dynfield.h 💜

🎀 Author 🎀

Generated automatically by Doxygen for DPDK from the source code. Not me writing poetry by hand, bestie — the robot did it 🤖💅

kay so real talk, this page was served to you fresh out of DPDK Version 25.11.3, and that footer energy is all yours to keep 🩷✨

📦 where this page comes from