e1000_config..._link_change(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, welcome to the Kernel API Manual ✨ this one's a lil function called e1000_config_dsp_after_link_change, and honestly? she's niche, she's specific, she's iconic in her own little way 🎀

🌸 NAME 🌸

e1000_config_dsp_after_link_change — yes that's literally it, that's the whole name, the manpage said so and we're not gonna pretend otherwise 💀 (the title line has a lil trailing dash and no description after it, and we respect that)

✨ SYNOPSIS ✨

s32 e1000_config_dsp_after_link_change (struct e1000_hw *hw , bool
link_up );

that's the whole vibe check — she takes a struct e1000_hw *hw and a bool link_up, and hands you back an s32 🫶

🦋 ARGUMENTS 🦋

  • hw — this is the struct holding all the variables that get accessed by the shared code. your whole lil world of state lives in here 💖
  • link_up — this is a yes/no situation: it tells you whether the link was up at the time this function got called. past tense, bestie, we're reporting on what already happened 🌸

🔥 RETURN 🔥

  • E1000_ERR_PHY — you get this one if it fails to read/write the PHY 😭 like, the PHY said no and the function is telling you all about it
  • E1000_SUCCESS — and this one lands in any other case. slay 💅

👑 DESCRIPTION 👑

so here's the tea, and it's genuinely specific so listen up 🍓

82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a gigabit link is achieved, and the whole point of that is to improve link quality 🔥 that's it, that's the function — those two revisions, gigabit link, DSP gets configured, link quality gets better. periodt ✨

🌈 SEE ALSO 🌈

this list is long long, so buckle in bestie, we're going through all of them and nobody gets left behind 💀✨

the kernel file itself lives at ./drivers/net/ethernet/intel/e1000/e1000_hw.c 🎀

and then, in order:

like I said. all of them. every single one. no cap 💖✨

lowkey a reminder that this page is dated October 2026 and comes to you from source ./drivers/net/ethernet/intel/e... — that's the version footer, and it's giving "she's been around" 🦋

and that's the whole page bestie!! go forth and configure that DSP when your gigabit link hits 🌸💅👑 mwah 💜

📦 where this page comes from