libnvme(9)

libnvme(9) 🎀

okay bestie, welcome to the libnvme API manual — this page is straight from the libnvme(9) section of the manual, and we're about to get into the very specific lore of Protection Information Format Attribute. yes, that's a whole enum. yes, it's iconic. let's go 💅

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🌸 NAME 🌸

enum nvme_nvm_id_ns_pifa — Protection Information Format Attribute. literally what it says on the tin, bestie 🫶

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✨ SYNOPSIS ✨

here's the whole enum, copied exactly, no cap:

enum nvme_nvm_id_ns_pifa {
    NVME_NVM_PIFA_STMLA_SHIFT ,
    NVME_NVM_PIFA_STMLA_MASK ,
    NVME_NVM_PIFA_BIT_GRANULARITY_MASKING ,
    NVME_NVM_PIFA_BYTE_GRANULARITY_MASKING ,
    NVME_NVM_PIFA_MASKING_NOT_SUPPORTED

};

she's simple, she's sleek, she's giving "five constants and a dream" ✨

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👑 Constants 👑

every single member, explained, because we do not leave anyone out:

• NVME_NVM_PIFA_STMLA_SHIFT — the shift amount you use to get the Storage Tag Masking Level Attribute. it's the lil slide-to-the-left number, iykyk 🦋
• NVME_NVM_PIFA_STMLA_MASK — the mask you use to get the Storage Tag Masking Level Attribute. masking era 💅
• NVME_NVM_PIFA_BIT_GRANULARITY_MASKING — Bit Granularity Masking. bit-by-bit, main character energy ⭐
• NVME_NVM_PIFA_BYTE_GRANULARITY_MASKING — Byte Granularity Masking. chunkier granularity, still slaying 🌈
• NVME_NVM_PIFA_MASKING_NOT_SUPPORTED — Masking Not Supported. she said "not today" and honestly? valid 💀

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lowkey a reminder: these are the constants as written, so keep the exact spellings when you use them in code — no renaming, no shortcuts, fr fr 🙈

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okay that's the whole page, bestie, you ate that 🍓 this was enum nvme_nvm_id_ns_pifa from the libnvme(9) API Manual, dated October 2026 — and the source/version vibes on the footer are also libnvme(9), so consider yourself fully caught up. mwah 💖🧚