i40e_cleanup_headers(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 i40e_cleanup_headers 💅

ok so bestie, welcome to the i40e_cleanup_headers(9) page — straight out of the Kernel API Manual, no cap. this is the little helper that fixes up your empty headers and pads tiny frames so they're actually valid Ethernet. sit down, grab a lil snack, we're getting into it 🍓

✨ NAME ✨

i40e_cleanup_headers — Correct empty headers 🫶

🌸 SYNOPSIS 🌸

bool i40e_cleanup_headers (struct i40e_ring *rx_ring , struct sk_buff
*skb , union i40e_rx_desc *rx_desc );

like, literally that's the whole signature. she's compact, she's iconic 👑

🦋 ARGUMENTS 🦋

  • rx_ring — the rx descriptor ring that the packet is being transacted on, iykyk 💫
  • skb — pointer to the current skb that's getting fixed up 🛠️
  • rx_desc — pointer to the EOP Rx descriptor 👀

💖 DESCRIPTION 💖

okay so here's the tea: in addition, if skb is not at least 60 bytes, we need to pad it so that it's large enough to qualify as a valid Ethernet frame. that's the whole vibe — no shorty frames allowed on this ring, periodt 🚫📏

and the return value? it returns true if an error was encountered and skb was freed. so like, if you get a true back, that skb is gone-gone, off the board, no longer your problem 💀

bestie pls note: true = error happened + skb got freed. don't go touching that skb after, fr fr 🙈

🔥 SEE ALSO 🔥

Kernel file ./drivers/net/ethernet/intel/i40e/i40e_txrx.c, plus the whole friend group:

like yeah. that's a lot of friends. she knows everybody at the party 🌈💜

okay that's the whole page bestie!! 🌸✨

this lil gem lives in ./drivers/net/ethernet/intel/i40e, dats the source/version vibe, and she's stamped October 2026. mwah, go read some more kernel docs, ily 💅🎀🦋

📦 where this page comes from