libnvme(9)

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

okay so real talk, this is a page from libnvme(9), the API manual, and it's all about one iconic little enum. buckle up 🦋

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✨ NAME ✨

enum nvme_id_ns_rescap — literally "This field indicates the reservation capabilities of the namespace." that's it, that's the whole vibe. it's the reservation-capabilities glow-up list for a namespace 👑

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🌸 SYNOPSIS 🌸

here's the whole squad, in order, no cap:

enum nvme_id_ns_rescap {
    NVME_NS_RESCAP_PTPL ,
    NVME_NS_RESCAP_WE ,
    NVME_NS_RESCAP_EA ,
    NVME_NS_RESCAP_WERO ,
    NVME_NS_RESCAP_EARO ,
    NVME_NS_RESCAP_WEAR ,
    NVME_NS_RESCAP_EAAR ,
    NVME_NS_RESCAP_IEK_13

};

eight constants, zero filler, we love to see it 💖

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🫶 Constants 🫶

okay bestie, each one of these is a "if set" situation — like, if the bit is set, the namespace is telling you what it can do. every single one is an if-set, so don't come for me if it's zero, that just means no ✨

• NVME_NS_RESCAP_PTPL — if set, the namespace supports the Persist Through Power Loss capability. yes, surviving a power loss, main character energy fr fr ⚡
• NVME_NS_RESCAP_WE — if set, the namespace supports the Write Exclusive reservation type. iconic 🔥
• NVME_NS_RESCAP_EA — if set, the namespace supports the Exclusive Access reservation type. slay 💅
• NVME_NS_RESCAP_WERO — if set, the namespace supports the Write Exclusive - Registrants Only reservation type. lowkey a whole mouthful but we respect it 🎀
• NVME_NS_RESCAP_EARO — if set, the namespace supports the Exclusive Access - Registrants Only reservation type. yes bestie, again, but exclusive-access flavoured 🌸
• NVME_NS_RESCAP_WEAR — if set, the namespace supports the Write Exclusive - All Registrants reservation type. and the "all registrants" part? it's giving inclusivity 🌈
• NVME_NS_RESCAP_EAAR — if set, the namespace supports the Exclusive Access - All Registrants reservation type. the seventh sibling, still eating 🍓
• NVME_NS_RESCAP_IEK_13 — if set, Ignore Existing Key is used as defined in revision 1.3 or later of this specification. note it: 1.3 or later, that's a version detail, don't lose it 🙈

ngl all eight of these are just "if set" flags — the namespace is basically posting a capability story and these are the story highlights ✨

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👑 the cute sign-off 👑

that's the page! this was enum nvme_id_ns_rescap from the libnvme(9) API Manual — and the date on the original footer was October 2026, so yeah, this info is from the future and still ate 💀💜

go check your namespace's rescap field, bestie, iykyk. periodt. 🧚⭐