libnvme(2)

💅 libnvme(2) — the API Manual, bestie edition ✨

okay so we're in libnvme's manual, section 2, and today's main character is a lil enum called nvme_pmrsts 🫶

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🌸 NAME 🌸

enum nvme_pmrsts — bestie, this field literally indicates the persistent memory region status 💾✨

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🎀 SYNOPSIS 🎀

enum nvme_pmrsts {
    NVME_PMRSTS_ERR_SHIFT ,
    NVME_PMRSTS_NRDY_SHIFT ,
    NVME_PMRSTS_HSTS_SHIFT ,
    NVME_PMRSTS_CBAI_SHIFT ,
    NVME_PMRSTS_ERR_MASK ,
    NVME_PMRSTS_NRDY_MASK ,
    NVME_PMRSTS_HSTS_MASK ,
    NVME_PMRSTS_CBAI_MASK

};

like. look at her. eight constants, zero drama, all business 😌👑

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🦋 Constants 🦋

no cap, these are the little guys that live inside the enum. shifts and masks, shifts and masks, it's giving bit manipulation 🧚

• NVME_PMRSTS_ERR_SHIFT — the shift amount you use to get the error 💀
• NVME_PMRSTS_NRDY_SHIFT — the shift amount you use to get the not ready 🙈
• NVME_PMRSTS_HSTS_SHIFT — the shift amount you use to get the health status 🩺
• NVME_PMRSTS_CBAI_SHIFT — the shift amount you use to get the controller base address invalid 😭
• NVME_PMRSTS_ERR_MASK — the mask you use to get the error 💅
• NVME_PMRSTS_NRDY_MASK — the mask you use to get the not ready ✨
• NVME_PMRSTS_HSTS_MASK — the mask you use to get the health status 🌈
• NVME_PMRSTS_CBAI_MASK — the mask you use to get the controller base address invalid 🔥

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ngl bestie, if you're reaching for the *_SHIFT ones you're shifting, and if you're reaching for the *_MASK ones you're masking. that's the whole vibe check. iykyk 🫶

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and that's the whole page, periodt 💖 this was enum nvme_pmrsts from the libnvme API manual, section 2, signed off in July 2026 — go forth and decode those persistent memory region status bits, you absolute icon 👑🌸