rte_node_eth_api.h(3)

✨ rte_node_eth_api.h — the girlies' guide to ethdev nodes ✨

okay so bestie, this is a page from the DPDK Library Functions Manual, and it's literally all about rte_node_eth_api.h. it's a header file, it's giving very experimental, and it's here to help you set up your ethdev nodes. let's get into it 💅

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🌸 SYNOPSIS 🌸

first things first, the includes, no cap:

#include <rte_compat.h>
#include <rte_common.h>
#include <rte_graph.h>
#include <rte_mempool.h>

🎀 Data Structures 🎀

just the one, and she's iconic:

• struct rte_node_ethdev_config

🦋 Functions 🦋

two of them, and they're both doing the most:

int rte_node_eth_config (struct rte_node_ethdev_config *cfg, uint16_t
    cnt, uint16_t nb_graphs)

__rte_experimental int rte_node_ethdev_rx_next_update (rte_node_t id,
    const char *edge_name)

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💖 Detailed Description 💖

Warning ⚠️ EXPERIMENTAL: literally all the functions in this file may be changed or removed without prior notice. not a drill, bestie. she's living on the edge and she's fine with it 🫶

so what's the actual tea? this API lets you set up ethdev_rx and ethdev_tx nodes, plus all their queue associations. it's the whole shebang. the glow-up from "raw packets" to "nodes in a graph" happens right here ✨

Definition in file rte_node_eth_api.h.

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👑 Function Documentation 👑

⭐ int rte_node_eth_config (struct rte_node_ethdev_config * cfg, uint16_t cnt, uint16_t nb_graphs)

she initializes ethdev nodes. main character energy fr fr.

Parameters 🌈

• cfg — an array of ethdev config that identifies which port's ethdev_rx and ethdev_tx nodes need to be created, plus the queue association. it's basically the blueprint, iykyk.
• cnt — size of the cfg array. how many blueprints we're working with 💅
• nb_graphs — number of graphs that will be used.

Returns 🎀

• 0 on successful initialization, negative otherwise. (yes queen, zero is the win condition.)

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💀 __rte_experimental int rte_node_ethdev_rx_next_update (rte_node_t id, const char * edge_name)

she updates the ethdev rx next node — like changing who she's linking up with next.

Parameters 🌸

• id — node id whose edge is to be updated. tell me which node, bestie.
• edge_name — name of the next node. the one she's walking towards 🚶♀️

Returns 🍓

• EINVAL: either of the input parameters are invalid — aka somebody gave her the wrong info 😭
• ENOMEM: if memory allocation failed — she's broke, no memory, sending thoughts and prayers 🙈
• 0 on successful initialization.

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🧚 Author 🧚

generated automatically by Doxygen for DPDK from the source code. no human wrote this, the robots ate and left no crumbs 🤖✨

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and that's the whole page, periodt. 💜

DPDK — Version 25.11.3 — rte_node_eth_api.h(3). mwah, catch you on the next manpage, bestie 🫶🌈