STRUCT DEVLINK_TRAP(9)

✨ struct devlink_trap(9) ✨

okay bestie, welcome to the Kernel API Manual entry for struct devlink_trap(9) — yes that's the whole title, and yes it's a whole vibe. this one's short and sweet and honestly kind of iconic in its minimalism 💅

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🎀 NAME 🎀

struct devlink_trap — Immutable packet trap attributes.

like, immutable. as in: these things are NOT changing, bestie. set in stone. periodt. 🪨

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🦋 SYNOPSIS 🦋

struct devlink_trap {
    enum devlink_trap_type type;
    enum devlink_trap_action init_action;
    bool generic;
    u16 id;
    const char *name;
    u16 init_group_id;
    u32 metadata_cap;
 };

look at her. seven fields. no notes. 🔥

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🌸 Members 🌸

• type — the trap type. that's it, that's the field. lowkey self-explanatory but we love her anyway 💖
• init_action — the initial trap action. emphasis on initial, because the whole struct is immutable but this one's literally named after the starting state, iykyk.
• generic — a bool telling you whether the trap is generic or not. that's the entire lore. 🫶
• id — the trap identifier. a u16. she's small but she's doing her best.
• name — the trap name, as a const char *. ✨ branding ✨
• init_group_id — the initial group identifier, also a u16. matching set with id, cute.
• metadata_cap — the metadata types that can be provided by the trap. a u32 full of possibilities 🦋

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💜 Description 💜

so this struct describes the immutable attributes of packet traps that drivers register with devlink. that's the whole thing. short queen. 👑

like — drivers register traps with devlink, and these are the attributes that never change on them. no cap. 🧚

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🌈 SEE ALSO 🌈

Kernel file ./include/net/devlink.h, plus the whole friend group:

• struct devlink_port_pci_pf_attrs(9)
• struct devlink_port_pci_vf_attrs(9)
• struct devlink_port_pci_sf_attrs(9)
• struct devlink_port_attrs(9)
• struct devlink_linecard_ops(9)
• struct devlink_dpipe_field(9)
• struct devlink_dpipe_header(9)
• struct devlink_dpipe_match(9)
• struct devlink_dpipe_action(9)
• struct devlink_dpipe_value(9)
• struct devlink_dpipe_entry(9)
• struct devlink_dpipe_dump_ctx(9)
• struct devlink_dpipe_table(9)
• struct devlink_dpipe_table_ops(9)
• struct devlink_dpipe_headers(9)
• struct devlink_resource_size_params(9)
• struct devlink_flash_notify(9)
• struct devlink_param(9)
• struct devlink_flash_update_params(9)
• struct devlink_region_ops(9)
• struct devlink_port_region_ops(9)
• struct devlink_health_reporter_ops(9)
• struct devlink_trap_metadata(9)
• struct devlink_trap_policer(9)
• struct devlink_trap_group(9)
• struct devlink_port_ops(9)

that's a LOT of structs. the devlink extended universe is real and it is thriving 💀💖

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ok that's the whole page, bestie. go forth and register your traps. 🫶

and finally, the cute little sign-off from the original footer: this one lives in ./include/net, straight from the October 2026 era of the kernel, and its name is — say it with me — struct devlink_trap(9). slay. 🌟💅