libnvme(2)

💖 NAME 💖

struct nvmf_discovery_log — it's the Discovery Log Page, aka Log Identifier 70h ✨

And yes bestie, this page lives in the libnvme API manual, so it's libnvme(2) — you're exactly where you're supposed to be 🫶

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🌸 SYNOPSIS 🌸

struct nvmf_discovery_log {
    __le64 genctr;
    __le64 numrec;
    __le16 recfmt;
    __u8 rsvd14[1006];
    struct nvmf_disc_log_entry entries[];
};

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🦋 Members 🦋

Okay so this struct is literally just a header + a whole rack of entries, and here's what every single field is doing:

• genctr — the Generation Counter (GENCTR), and she's the vibe tracker for the whole page 👑. She tells you what version of the discovery info you're looking at, and she starts her life at a value of 0h. Every time the Discovery Log Page changes, this counter gets incremented by one. And here's the cute bit: if the value is FFFFFFFF_FFFFFFFFh, then the field shall be cleared to 0h when incremented — yep, she rolls over back to 0h 🔄. No drama, just wrapped.
• numrec — Number of Records (NUMREC) 💅. It tells you how many records are chillin' inside the log.
• recfmt — Record Format (RECFMT) 🎀. This one specifies the format of the Discovery Log Page. If someone defines a brand new format, this value gets incremented by one. And the format of the record specified in this definition shall be 0h. Periodt.
• rsvd14 — Reserved 💤. That's it, that's the field, don't touch her.
• entries — Discovery Log Page Entries 🔥 — and you need to go see struct nvmf_disc_log_entry for the actual deets. Go look, I'll wait 🧚

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okay that's the whole page, bestie, you ate that 💜

This was struct nvmf_discovery_log from the libnvme(2) API Manual, dated July 2026 📅 — screenshot it, save it, love it, bye 🎀✨💖