libnvme(2)

💖 libnvme — struct nbft_host 💖

okay bestie, welcome to the libnvme(2) API manual, the corner of the internet where we stan a well-defined C struct ✨ this one is struct nbft_host, aka the Host Descriptor (Figure 9) — yes, THE figure 9, she's famous 💅

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🌸 NAME 🌸

struct nbft_host — the Host Descriptor (Figure 9), no cap 🫶

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✨ SYNOPSIS ✨

look at her. perfect shape. not a single byte out of place:

struct nbft_host {
    __u8 structure_id;
    __u8 flags;
    __u8 host_id[16];
    struct nbft_heap_obj host_nqn_obj;
    __u8 reserved[8];
 };

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🎀 Members 🎀

okay so let's go field by field, because every single one of these matters, fr fr 🔍

• structure_id — honey this is the Structure ID, and she shall be set to 2h (i.e., Host Descriptor; #NBFT_DESC_HOST). like, that's her whole identity, that's the vibe check she passes 💅
• flags — the Host Flags 🚩 go look at enum nbft_host_flags for the receipts, iykyk.
• host_id — the Host ID ✨ this field shall be set to the Host Identifier. and listen — this field shall not be empty if the NBFT and NVMe Boot are supported by the Platform. not empty!! that's a hard requirement, bestie, no cutting corners 🙈
• host_nqn_obj — the Host NQN Heap Object Reference 🦋 this field indicates a heap object containing a Host NQN, which is iconic. and same rules as above: this object shall not be empty if the NBFT and NVMe Boot are supported by the Platform. so if the platform is doing NBFT + NVMe Boot, this thing is populated, periodt 👑
• reserved — reserved 💤 she's not for you, she's just sitting there, respecting the layout, main character of doing absolutely nothing 🛋️

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🤓 tiny reminder before you go: host_id and host_nqn_obj being non-empty is conditional on the NBFT and NVMe Boot being supported by the Platform. keep that in your notes app 📝

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and that's the whole page, bestie 🫶 written for the libnvme API manual, struct nbft_host edition, from back in July 2026 — the manual name was literally libnvme(2) and yes, she ate ⭐ bye luv u 💜