libnvme(9)

💖 libnvme(9) — API Manual 💖

okay so bestie, this is a page from the libnvme API manual, and today's main character is a struct. yes, a whole struct. and honestly? she's iconic.

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✨ NAME ✨

struct nvme_persistent_event_log — Persistent Event Log

like, the persistent one. the one that remembers. periodt.

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🌸 SYNOPSIS 🌸

struct nvme_persistent_event_log {
    __u8 lid;
    __u8 rsvd1[3];
    __le32 tnev;
    __le64 tll;
    __u8 rv;
    __u8 rsvd17;
    __le16 lhl;
    __le64 ts;
    __u8 poh[16];
    __le64 pcc;
    __le16 vid;
    __le16 ssvid;
    char sn[20];
    char mn[40];
    char subnqn[NVME_NQN_LENGTH];
    __le16 gen_number;
    __le32 rci;
    __u8 rsvd378[102];
    __u8 seb[32];
 };

no cap, every single field is right there, in order, exactly like that. type it out character for character or don't type it at all 💅

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🦋 Members 🦋

okay girl, let's go through the whole cast of this struct one by one. everybody gets their moment ✨

• lid — Log Identifier. her name tag 💖
• rsvd1 — Reserved. not for you, bestie 🙈
• tnev — Total Number of Events. the full count, all of them, no skips
• tll — Total Log Length. how long the whole thing is, fr fr
• rv — Log Revision. the version era she's in 🌈
• rsvd17 — Reserved. again. mind your business 💀
• lhl — Log Header Length. just the header part, measured out 🎀
• ts — Timestamp. when it happened, noted 📝
• poh — Power on Hours. how many hours she's been awake, honestly relatable 😭
• pcc — Power Cycle Count. how many times she's been turned off and back on again 🔥
• vid — PCI Vendor ID. who made her 🌸
• ssvid — PCI Subsystem Vendor ID. who made the subsystem version of her, iykyk
• sn — Serial Number. her government name 🫶
• mn — Model Number. the model she serves 👑
• subnqn — NVM Subsystem NVMe Qualified Name. yes the whole long name, she's fancy like that 💅
• gen_number — Generation Number. which generation she's giving ⭐
• rci — Reporting Context Information. the context, the lore, the backstory 🦋
• rsvd378 — Reserved. respectfully, not your field 🙈
• seb — Supported Events Bitmap. the whole bitmask of what she can handle, and she can handle a lot 💜

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bestie reminder: the rsvd fields are Reserved — that means hands off, they're not yours to touch, no notes 💀 and the subnqn field is sized NVME_NQN_LENGTH, so keep it exactly that, don't go inventing a different length, please and thank you 🎀

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🧚 sign-off 🧚

and that's the page, bestie! this one's from October 2026, courtesy of the libnvme(9) manual — page struct nvme_persistent_event_log, API Manual energy all the way through. go forth and log your persistent events, slay 💖✨🎀