libnvme(9)

💖 NAME 💖

okay bestie, welcome to libnvme(9) — the manual page (API Manual, no less 👑) that's about one specific enum, and honestly? she's lowkey iconic for a struct field helper.

enum nvme_id_ctrl_plsi — Power Loss Signaling Information ✨

🌸 SYNOPSIS 🌸

so here's the whole thing, exactly as written, no cap:

enum nvme_id_ctrl_plsi {
    NVME_CTRL_PLSI_PLSEPF_SHIFT ,
    NVME_CTRL_PLSI_PLSFQ_SHIFT ,
    NVME_CTRL_PLSI_PLSEPF_MASK ,
    NVME_CTRL_PLSI_PLSFQ_MASK

};

that's it. that's the enum. four constants, zero drama (until the power fails, see below 😭).

🦋 Constants 🦋

these four little icons are your cheat codes for pulling info out of the struct nvme_id_ctrl.plsi field. shift and mask, mask and shift, the classic duo 💅

• NVME_CTRL_PLSI_PLSEPF_SHIFT — this is the shift amount you use to get the PLS Emergency Power Fail out of the struct nvme_id_ctrl.plsi field. slide those bits over, bestie 🫶
• NVME_CTRL_PLSI_PLSFQ_SHIFT — this one is the shift amount for getting the PLS Forced Quiescence out of the struct nvme_id_ctrl.plsi field. different shift, different vibe ✨
• NVME_CTRL_PLSI_PLSEPF_MASK — the mask that gets you the PLS Emergency Power Fail from the struct nvme_id_ctrl.plsi field. it's giving filter, but make it bitwise 🎀
• NVME_CTRL_PLSI_PLSFQ_MASK — and this is the mask for grabbing the PLS Forced Quiescence out of that same struct nvme_id_ctrl.plsi field. same field, same energy, different bit mask 💜

ngl the whole trick here is: the field is <hotpink>plsi</hotpink>, and these constants are the only blessed way to peek inside it. don't go inventing your own shifts fr fr 🙈

k that's the whole page, mwah 💋 — this was enum nvme_id_ctrl_plsi from the libnvme(9) API Manual, dated October 2026. go forth and mask responsibly, bestie 🌈🦋⭐