libnvme(9)

💅 libnvme(9) — the enum nbft_desc_type glow-up

Okay bestie, so this is a page out of the libnvme API manual, section 9, and it's literally all about enum nbft_desc_type — aka the NBFT Elements Descriptor Types from Figure 6. Yes, Figure 6. Iconic. Let's get into it. 🦋

✨ NAME ✨

enum nbft_desc_type — NBFT Elements - Descriptor Types (Figure 6) 🎀

🌸 SYNOPSIS 🌸

enum nbft_desc_type {
    NBFT_DESC_HEADER ,
    NBFT_DESC_CONTROL ,
    NBFT_DESC_HOST ,
    NBFT_DESC_HFI ,
    NBFT_DESC_SSNS ,
    NBFT_DESC_SECURITY ,
    NBFT_DESC_DISCOVERY ,
    NBFT_DESC_HFI_TRINFO ,
    NBFT_DESC_RESERVED_8 ,
    NBFT_DESC_SSNS_EXT_INFO ,
    NBFT_DESC_HFI_EXT_INFO

};

🫶 CONSTANTS 🫶

okay so here's the whole cast of characters, no skips, no cuts 💖

• NBFT_DESC_HEADER — the Header ✨ it's an ACPI structure header but with a little extra NBFT-specific seasoning on top.
• NBFT_DESC_CONTROL — the Control Descriptor 🎛️ it's the main character that points you to where the host, HFI, SSNS, security, and discovery descriptors live.
• NBFT_DESC_HOST — the Host Descriptor 🏠 literally just host information. that's it, that's the vibe.
• NBFT_DESC_HFI — the HFI Descriptor 💅 an indexable table of HFI Descriptors, one for each fabric interface on the host. one per interface, no cap.
• NBFT_DESC_SSNS — the Subsystem Namespace Descriptor 📦 an indexable table of SSNS Descriptors.
• NBFT_DESC_SECURITY — the Security Descriptor 🔐 an indexable table of Security descriptors.
• NBFT_DESC_DISCOVERY — the Discovery Descriptor 🔍 an indexable table of Discovery Descriptors.
• NBFT_DESC_HFI_TRINFO — the HFI Transport Descriptor 🚀 indicated by an HFI Descriptor, and it corresponds to a specific transport for a single HFI.
• NBFT_DESC_RESERVED_8 — Reserved 🙈 that's all, it's reserved, mind your business.
• NBFT_DESC_SSNS_EXT_INFO — the SSNS Extended Info Descriptor 🌈 indicated by an SSNS Descriptor if required.
• NBFT_DESC_HFI_EXT_INFO — the HFI Extended Info Descriptor 💜 indicated by an HFI Transport Info descriptor (since rev. 1.1).

and that's the whole enum bestie, go forth and descriptor-type responsibly 🧚✨

this little gem is from October 2026, filed under enum nbft_desc_type, in the libnvme(9) manual section — see you in the next group chat 🎀💖