STRUCT NFP_TUN_NEIGH(9)

💖 struct nfp_tun_neigh(9) — Kernel API Manual 💖

okay so bestie, listen — this is a page from the Kernel API Manual, and honestly? it's a tiny little struct with main character energy. three fields. that's it. but every single one of them matters, so let's get into it 🫶

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✨ NAME ✨

struct nfp_tun_neigh — basic neighbour data. lowercase, humble, but it's giving "quiet baddie who runs the whole group chat" 💅

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🌸 SYNOPSIS 🌸

struct nfp_tun_neigh {
    u8 dst_addr[ETH_ALEN];
    u8 src_addr[ETH_ALEN];
    __be32 port_id;
 };

look at her. three lines of pure slay. no cap, that's the whole struct 🔥

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🎀 Members 🎀

• dst_addr — destination MAC address, like the where are we going of it all 🦋 this is the address your packet is trying to reach, fr fr.
• src_addr — source MAC address, aka the who sent this — the origin story, the receipts, the "it came from here" moment ✨
• port_id — the NFP port to output the packet on, and just so you know, it's associated with source IPv4 👀 that's the key detail, don't lose it.

three fields, zero fluff, and every one of them is doing her job. iconic behaviour only 💯

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🦋 SEE ALSO 🦋

okay so this struct does not exist in a vacuum — she's part of a whole friend group, and you can find them all hanging out in the kernel file ./drivers/net/ethernet/netronome/nfp/flower/main.h 🌈

• struct nfp_fl_tunnel_offloads(9)
• struct nfp_tun_neigh_lag(9)
• struct nfp_tun_neigh_ext(9)
• struct nfp_tun_neigh_v4(9)
• struct nfp_tun_neigh_v6(9)
• struct nfp_neigh_entry(9)
• struct nfp_predt_entry(9)
• struct nfp_mtu_conf(9)
• struct nfp_fl_lag(9)
• struct nfp_fl_internal_ports(9)
• struct nfp_flower_priv(9)
• struct nfp_fl_qos(9)
• struct nfp_flower_repr_priv(9)
• struct nfp_flower_non_repr_priv(9)
• struct nfp_ipv6_addr_entry(9)

like, the whole squad 💜 go read them, iykyk.

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mwah 💋 that's the page — source /drivers/net/ethernet/netrono..., dated October 2026, and yes she's still serving struct realness. bye bestie, go read some headers 🎀