rte_flow_item_e_tag(3)

📦 version 26.03, in nixos 26.05, nixpkgs unstable

💅 NAME 💅

okay so welcome to the rte_flow_item_e_tag(3) page bestie!! it lives in the DPDK Library Functions Manual and it's literally all about rte_flow_item_e_tag — the struct you use when you're matching an E-tag header. yes we're doing VLAN-tag-adjacent lore today, buckle up 🎀

✨ SYNOPSIS ✨

#include <rte_flow.h>

🦋 Data Fields 🦋

the whole squad, in order:

  • rte_be16_t epcp_edei_in_ecid_b
  • rte_be16_t rsvd_grp_ecid_b
  • uint8_t in_ecid_e
  • uint8_t ecid_e
  • rte_be16_t inner_type

🌸 Detailed Description 🌸

so this struct is RTE_FLOW_ITEM_TYPE_E_TAG, and what it does is match a E-tag header. that's the whole vibe 💫

the corresponding standard outer EtherType (TPID) value is RTE_ETHER_TYPE_ETAG. and here's the cute part: it can be overridden by the preceding pattern item 👀 (yes, the item before it gets a say — main character energy fr)

Definition at line 1143 of file rte_flow.h. noted and bookmarked 📌

💖 Field Documentation 💖

💜 rte_be16_t epcp_edei_in_ecid_b

E-Tag control information (E-TCI). this one is packing in E-PCP (3b), E-DEI (1b), and ingress E-CID base (12b) — three roommates in one field, slay 🫶

Definition at line 1148 of file rte_flow.h.

💜 rte_be16_t rsvd_grp_ecid_b

Reserved (2b), GRP (2b), E-CID base (12b). yep, the reserved bits are just sitting there being reserved, we respect their boundaries ✨

Definition at line 1150 of file rte_flow.h.

💜 uint8_t in_ecid_e

Ingress E-CID ext. short king, one byte, does exactly what it says 🌈

Definition at line 1151 of file rte_flow.h.

💜 uint8_t ecid_e

E-CID ext. (no "in" prefix bestie — that one's the ingress version up above, don't mix them up 💀)

Definition at line 1152 of file rte_flow.h.

💜 rte_be16_t inner_type

Inner EtherType or TPID. the inside info, iykyk 🌸

Definition at line 1153 of file rte_flow.h.

👑 Author 👑

Generated automatically by Doxygen for DPDK from the source code. so nobody wrote this page, a robot did, and honestly? it ate 🤖💅

that's the whole page bestie, no cap, every single field accounted for 🧚

DPDK — Version 26.03.0 🦋 mwah, go match some E-tag headers, ily, bye!! 💖🎀✨

📦 where this page comes from