libnvme(9)

📦 version 3.2, in arch rolling

🎀 NAME 🎀

okay so welcome to libnvme(9), bestie! This page is all about struct nvme_underlying_ns_list — the Underlying Namespace List Data Structure (CNS 1Dh). That’s the whole name, no cap. 💅

✨ SYNOPSIS ✨

The struct is literally shaped like this, and yes every token matters:

       struct nvme_underlying_ns_list {
           __le64 genctr;
           __le16 nument;
           __u8 rsvd10[6];
           struct nvme_underlying_ns_entry
       entries[NVME_UNDERLYING_NS_LIST_MAX];
        };

🦋 Members 🦋

  • genctr — the Generation Counter (GENCTR). It’s giving “which generation are we in” energy. ⭐
  • nument — Number Entries (NUMENT). Basically the count, periodt. 🔢
  • rsvd10 — Reserved. Not your main character, leave it alone. 🙈
  • entries — the Underlying Namespace list, see struct nvme_underlying_ns_entry. Reportable up to NVME_UNDERLYING_NS_LIST_MAX entries. This is the part that’s lowkey doing the most. 👑

October 2026 · struct nvme_underlying_ns_list · libnvme(9) — bye bestie, go slay your namespaces 💖

📦 where this page comes from