e1000e_gig_...ound_ich8lan(9)

📦 version 7.3.1, in nixpkgs unstable

✨ e1000e_gig_downshift_workaround_ich8lan ✨

okay so bestie, welcome to the e1000e_gig_downshift_workaround_ich8lan(9) page from the Kernel API Manual 💅 this one's a little niche but it's literally so important if you're messing with Intel NICs, iykyk.

🌸 NAME 🌸

e1000e_gig_downshift_workaround_ich8lan — the workaround for when WoL (Wake-on-LAN) from S5 just... stops working 😭 like it's giving "your computer will not wake up and nobody knows why" energy fr fr.

🦋 SYNOPSIS 🦋

void e1000e_gig_downshift_workaround_ich8lan (struct e1000_hw *hw );

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure 👑 (yes bestie, the whole hardware struct, she's the main character here)

💖 DESCRIPTION 💖

So here's the tea ☕ — these are the steps you gotta take when you're dropping from 1Gb/s. And when do you drop from 1Gb/s? Literally so many reasons, bestie:

  • link cable removal (LSC)
  • LPLU
  • Gig disable
  • MDIC PHY reset

The steps themselves are giving very much "two-step program":

  1. Set Kumeran Near-end loopback 🔁
  2. Clear Kumeran Near-end loopback 🔁
and that's it, periodt. But heads up — this should only be called for ICH8[m] devices with any 1G Phy. No cap, don't be out here calling it on random hardware 🙈

🌈 SEE ALSO 🌈

okay bestie buckle up, this list is LONG but every single one of these is iconic in her own way 💅 the Kernel file lives at ./drivers/net/ethernet/intel/e1000e/ich8lan.c:

and that's the whole page bestie 🫶 source file is ./drivers/net/ethernet/intel/e..., dated October 2026, and it's part of the e1000e_gig_...ound_ich8lan(9) manual. go wake up some LANs, slay 💜

📦 where this page comes from