igb_set_d3_lplu_state_82580(9)

📦 version 7.3.1, in nixpkgs unstable

💖 igb_set_d3_lplu_state_82580 (9) 💖

okay so bestie, welcome to the Kernel API Manual entry for igb_set_d3_lplu_state_82580 🫶 this one lives in the igb driver and it's all about lowkey saving power when your NIC is snoozing. let's get into it ✨

🌸 NAME 🌸

igb_set_d3_lplu_state_82580 — sets low power link up state for D3 💤⚡

🎀 SYNOPSIS 🎀

s32 igb_set_d3_lplu_state_82580 (struct e1000_hw *hw , bool active );

like, that's the whole signature, no cap 💅

🦋 ARGUMENTS 🦋

  • hw — pointer to the HW structure. literally your hardware handle, the main character of the whole struct situation 👑
  • active — a bool used to enable/disable lplu. true = turn that lplu on, false = turn it off 🎚️

⭐ DESCRIPTION ⭐

so here's the vibe check: success returns 0, failure returns 1. yes bestie, that's the whole return value situation 😭

okay so what does it actually DO — the low power link up (lplu) state gets set to the power management level D3, and SmartSpeed is disabled, when active is true. and if active is not true? then it clears lplu for D3 and enables SmartSpeed instead 🌈

💀 big important note: LPLU and SmartSpeed are mutually exclusive. like, you cannot have both, they do not coexist, periodt.

here's the why, bestie 🧚: LPLU is used during Dx states, where power conservation is the most important thing — like when the device is sleeping and we're trying to be as low-power as possible 🔋💤. But during driver activity, SmartSpeed should be enabled so that performance is maintained 🏃‍♀️🔥. it's giving "different eras, different needs" honestly.

💜 SEE ALSO 💜

like, that is a LOT of friends, but every single one of them is invited to the function-reference party 🎉👑

✨ and that's the whole page bestie ✨

this iconic little entry comes from ./drivers/net/ethernet/intel/igb and it's dated October 2026 — so mark your calendars, igb_set_d3_lplu_state_82580(9) said see you then 💖🦋 mwah, go enable SmartSpeed during driver activity, ily 🫶

📦 where this page comes from