libnvme(9)

💅 libnvme(9) — API Manual, bestie edition 🎀

okay so picture this: you're deep in libnvme (the API manual, to be exact), and you open up this one struct. It's called struct nvme_id_independent_id_ns, and it's literally the Identify - I/O Command Set Independent Identify Namespace Data Structure. That's a whole mouthful, I know, but stay with me — it's iconic, it's giving "namespace lore," and you're gonna slay this. ✨

---

🌸 NAME 🌸

struct nvme_id_independent_id_ns — the Identify - I/O Command Set Independent Identify Namespace Data Structure. yes that's the whole name. no we're not shortening it. periodt. 💅

---

✨ SYNOPSIS ✨

here's the shape of it, bestie — copy it exactly, don't touch a single byte:

struct nvme_id_independent_id_ns {
    __u8 nsfeat;
    __u8 nmic;
    __u8 rescap;
    __u8 fpi;
    __le32 anagrpid;
    __u8 nsattr;
    __u8 rsvd9;
    __le16 nvmsetid;
    __le16 endgid;
    __u8 nstat;
    __u8 kpios;
    __le16 maxkt;
    __u8 rsvd18[2];
    __le32 rgrpid;
    __u8 rsvd24[4072];
 };

like, look at those little padding arrays. rsvd24[4072]?? it's carrying the whole struct on its back ngl. 🫶

---

🦋 Members 🦋 (the field-by-field vibe check)

• nsfeat — common namespace features. the basics. the foundation. the main character energy of the field list. 👑
• nmic — Namespace Multi-path I/O and Namespace Sharing Capabilities. long name, big responsibilities. 💜
• rescap — Reservation Capabilities. what it can reserve, iykyk. 🎀
• fpi — Format Progress Indicator. yes it's tracking the format. yes it's watching. 🙈
• anagrpid — ANA Group Identifier. (__le32, so little-endian, bestie — do not @ me.) ⭐
• nsattr — Namespace Attributes. the ~attributes~. very demure, very mindful. 🌸
• rsvd9 — reserved. nothing to see here, move along. 💀
• nvmsetid — NVM Set Identifier. a __le16 icon. 🔥
• endgid — Endurance Group Identifier. another __le16, living its best life. 🌈
• nstat — Namespace Status. how's the namespace doing? ask nstat. 💖
• kpios — Key Per I/O Status. key-per-I/O? status. that's the whole thing. 🦋
• maxkt — Maximum Key Tag. __le16. max. key. tag. slay. ✨
• rsvd18 — Reserved. it's an array of 2, it's just chillin'. 🧚
• rgrpid — Reachability Group Identifier. __le32. reachability?? relatable fr fr. 🌟
• rsvd24 — Reserved. 4072 whole bytes of reserved. they're not doing anything and honestly? same. 💅

lowkey reminder: the rsvd* fields are reserved — hands off, no cap. don't go writing your fanfic into them. 🫶

---

that's the whole struct, bestie. every byte accounted for, every reserved array respected, nothing invented, nothing skipped. you ate. 🍓

this page is libnvme(9), from the API Manual — struct nvme_id_independent_id_ns, dated October 2026. mwah, go touch some namespaces. 💜