nvme_init_s...racteristics(9)

💅 nvme_init_set_features_perf_characteristics — from the libnvme API manual, bestie ✨

Okay so bestie, listen, this one's a mouthful but it's actually so chill. It's a function from the libnvme API manual, and we're gonna get through it together, iykyk 🫶

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✨ NAME ✨

nvme_init_set_features_perf_characteristics — literally just sets up the passthru command for Performance Characteristics. That's the whole vibe check. No cap. 🎀

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🌸 SYNOPSIS 🌸

void nvme_init_set_features_perf_characteristics (struct
libnvme_passthru_cmd *cmd , bool sv , __u8 attri , bool rvspa , struct
nvme_perf_characteristics *data );

She returns void, meaning she doesn't hand you anything back — she just does the thing and slays quietly. 💅

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🦋 ARGUMENTS 🦋

Every single one of these, no skipping, periodt:

• cmd — the Passthru command you're gonna use. Your main character struct, your canvas. 🎨
• sv — Save value across power states. Like, does this stick around when the power vibes change? That's what this bool is telling you. 🔥
• attri — the Attribute Index, aka ATTRI. It's a __u8, so keep it smol and cute. 🍓
• rvspa — Revert Vendor Specific Performance Attribute, aka RVSPA. Yes the acronym is giving cryptic but that's her name, we respect it. 💀
• data — a Pointer to structure nvme_perf_characteristics. She's the actual payload, the moment, the reason we're all here. 👑

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💖 DESCRIPTION 💖

So what does she do? She initializes the passthru command buffer for the Set Features command with FID value NVME_FEAT_FID_PERF_CHARACTERISTICS. That's it. That's the whole job. Iconic, honestly. 🧚

Think of it as: you bring the buffer, she fills in the Set Features specifics with that exact FID, and now your command is ready to go make its little journey to the device. Ate. 🌈

Heads up bestie — this page doesn't give you return values, error codes, or extra behaviour notes, so let's not invent any. We tell you what it says, and what it says is what it is, fr fr. 🙈

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⭐ SEE ALSO ⭐

Not gonna lie, this page has no SEE ALSO section, so there's nothing more to link you to here. Go explore the rest of the libnvme API manual, she's full of gems. 💜

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And that's the whole page, bestie 🎀 brought to you by the libnvme API manual, dated October 2026 — stay perf-characteristic, drink water, and don't forget to sv your values across power states. 🦋💖✨