e1000_k1_gig_workaround_hv(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_k1_gig_workaround_hv(9) — a Kernel API Manual moment

okay so bestie, welcome to the e1000_k1_gig_workaround_hv(9) page, straight out of the Kernel API Manual ✨. This is a little function with main character energy and exactly one job: babysitting the K1 setting so your NIC doesn't ghost you when the link speed changes. Let's get into it 🫶

🌸 NAME 🌸

e1000_k1_gig_workaround_hv — the K1 Si workaround, aka the moment silicon needs a lil emotional support 💖

✨ SYNOPSIS ✨

s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure. this is the whole hardware vibe, you hand it over and the function does its thing 💅
  • link — a link up bool flag. literally just a yes/no about whether the link is, y'know, up 🦋

🔥 DESCRIPTION 🔥

so here's the tea, bestie ☕ — if K1 is enabled for 1Gbps, the MAC might stall when transitioning from a lower speed. not cute. not slay. a whole mess 😭

This workaround disables K1 whenever link is at 1Gig. periodt 💀

And if link is down? The function will restore the default K1 setting located in the NVM. so it's like, putting the settings back where they belong, no cap 🌈

👑 SEE ALSO 👑

First up, the source file, because context is everything:

  • Kernel file ./drivers/net/ethernet/intel/e1000e/ich8lan.c

And now the full friend group — every single one of these cuties, no skipping, i love a complete list 💜:

okay and finally, the lil credit line at the bottom of the original page — it points at the source path ./drivers/net/ethernet/intel/e... (the file listing above is the full version, ./drivers/net/ethernet/intel/e1000e/ich8lan.c), dated October 2026, and it's from the Kernel API Manual. that's the whole sign-off bestie, mwah 💋🎀 go forth and keep your K1 in check ✨🦋

📦 where this page comes from