e1000_set_d..._state_82574(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_set_d3_lplu_state_82574 💅

okay bestie, so this is a page from the Kernel API Manual and it's all about one little function that flips a power-saving switch on your NIC. no cap, that's the whole plot. let's get into it 🫶

✨ NAME ✨

e1000_set_d3_lplu_state_82574 — sets the low power link up state for D3, literally its whole job 💖

🌸 SYNOPSIS 🌸

s32 e1000_set_d3_lplu_state_82574 (struct e1000_hw *hw , bool active );

she takes two things and she returns an s32, that's the vibe ✨

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure. yes the whole hardware struct, hand it over 🫱
  • active — a boolean used to enable/disable lplu. <italic>true</italic> = turn it on, anything else = clear it. she's a simple girl 🙈

🦋 DESCRIPTION 🦋

so here's the tea ☕ — the low power link up (lplu) state gets set to the power management level D3 when active is <italic>true</italic>. if it's not true? then it's clear lplu for D3, periodt. 💅

LPLU is the one that gets used during Dx states, aka the moments where power conservation is the most important thing in the whole entire world. like, this is lplu's main character era 🔥👑

but listen — during driver activity, SmartSpeed should be enabled so performance is maintained. that's the trade-off, babes. power savings when you're napping, SmartSpeed when you're actually doing stuff. iykyk 😌

⭐ SEE ALSO ⭐

so many siblings, she's from a big family fr fr. all of these live in the kernel file ./drivers/net/ethernet/intel/e1000e/82571.c:

and that's the whole page, bestie!! go forth and set your lplu state responsibly 💜✨

mwah 💋 — this cutie was brought to you by the source ./drivers/net/ethernet/intel/e..., dated October 2026, filed under e1000_set_d..._state_82574(9) 🎀

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