libnvme(2)

💖 NAME 💖

okay so bestie, welcome to libnvme(2) — this is the API manual, and today's main character is the enum nvme_mi_cmd_supported_effects, aka the MI Command Supported and Effects Data Structure. that's a whole mouthful but it's literally just the vibes-check for which MI commands you can run and what chaos they cause 🦋

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✨ SYNOPSIS ✨

here's the whole squad, look at them all lined up like a little lineup of icons:

enum nvme_mi_cmd_supported_effects {
    NVME_MI_CMD_SUPPORTED_EFFECTS_CSUPP ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_UDCC ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_NCC ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_NIC ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_CCC ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_SHIFT ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_MASK ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_NS ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_CTRL ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_NVM_SET ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_ENDGRP ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_DOMAIN ,
    NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_NSS

};

periodt. every single one of those is copy-pasted exactly, i do not play with identifiers 💅

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🎀 Constants 🎀

and now the breakdown, one by one, no skips, no shortcuts, we're doing all of them:

• NVME_MI_CMD_SUPPORTED_EFFECTS_CSUPP — Command Supported. it's giving "yes bestie this command exists, we ride at dawn" 🔥
• NVME_MI_CMD_SUPPORTED_EFFECTS_UDCC — User Data Content Change. your user data content? changed. that's the whole thing 👑
• NVME_MI_CMD_SUPPORTED_EFFECTS_NCC — Namespace Capability Change. the namespace capability got a glow-up, highkey
• NVME_MI_CMD_SUPPORTED_EFFECTS_NIC — Namespace Inventory Change. inventory said "new stuff just dropped" 🌸
• NVME_MI_CMD_SUPPORTED_EFFECTS_CCC — Controller Capability Change. not me changing the controller's capabilities 😭
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_SHIFT — a 20 bit shift. that's the shift, that's it, 20 bits of pure movement 💫
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_MASK — a 12 bit mask, literally 0xfff. cute lil mask, iconic
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_NS — Namespace Scope. the scope is a namespace, no cap 🫶
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_CTRL — Controller Scope. scope = controller. slay
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_NVM_SET — NVM Set Scope. yes, the NVM Set is the scope, we love a themed scope
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_ENDGRP — Endurance Group Scope. endurance group but make it scope 💪
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_DOMAIN — Domain Scope. it's giving domain. that's the vibe check result ✅
• NVME_MI_CMD_SUPPORTED_EFFECTS_SCOPE_NSS — NVM Subsystem Scope. and finally, NVM subsystem scope, the last one, ate and left no crumbs 🍓

okay that's literally all thirteen of them, i counted, you're welcome 💜

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and that's a wrap on our little enum tour!! this page is enum nvme_mi_cmd_supported_effects from libnvme(2), dated July 2026, and it lives inside the API Manual — thanks for coming to my ted talk, mwah 💅🧚🌈