e1000_valid...ksum_ich8lan(9)

📦 version 7.3.1, in nixpkgs unstable

💖 e1000_valid...ksum_ich8lan 💖

okay so bestie, welcome to the Kernel API Manual entry for e1000_valid...ksum_ich8lan — yes that's the truncated name in the header, we're living with it, it's giving "name too long for the corner of the page" energy 😭. Anyway. Come sit, let's talk EEPROM checksums.

✨ NAME ✨

e1000_validate_nvm_checksum_ich8lan — literally just validate the EEPROM checksum 🎀

🦋 SYNOPSIS 🦋

s32 e1000_validate_nvm_checksum_ich8lan (struct e1000_hw *hw );

🌸 ARGUMENTS 🌸

  • hw — pointer to the HW structure 💅 that's it, that's the whole input, she travels light.

🧚 DESCRIPTION 🧚

So here's the vibe check 🔥: this function checks whether the checksum actually needs to be fixed, and it does that by reading bit 6 in word 0x19.

If that bit is 0, it means the EEPROM had been modified but the checksum was never calculated 😱 — no cap, sneaky. In that case we need to calculate the checksum and set bit 6. Periodt. 👑

🫶 fr fr, that's the whole deal — one bit tells you whether a recalculation is owed.

👑 SEE ALSO 👑

The kernel file lives at ./drivers/net/ethernet/intel/e1000e/ich8lan.c — go say hi to the source, it's iconic 🦋 And here is the whole friend group, all of ich8lan.c's besties, every single one, because we don't do "and others" here 💅✨

ok and that's the page!! 🎀 source/version line says the kernel file path is truncated to ./drivers/net/ethernet/intel/e... in the footer, and the date is October 2026 — so yes, we're reading a manpage from the future, slay 💀✨ mwah, go fix that checksum bestie 💖🫶

📦 where this page comes from