idpf_tso(9)

📦 version 7.3.1, in nixpkgs unstable

💅 idpf_tso(9) — bestie, we're doing TSO math

okay so first things first, welcome to the Kernel API Manual, specifically the idpf_tso(9) page 🎀 this is the group chat where your skb finds out how big its segments are allowed to be. pull up a chair, we're about to get so into it.

✨ NAME ✨

idpf_tso — computes mss and TSO length to prepare for TSO

lowkey the whole personality of this function in one line: it does the mss math and works out the TSO length so everything's ready to go. no cap, that's it, that's the job 🫶

🌸 SYNOPSIS 🌸

int idpf_tso (struct sk_buff *skb , struct idpf_tx_offload_params *off
);

look at that signature. two args, one int coming back at you. iconic honestly 💖

🦋 ARGUMENTS 🦋

  • skb — pointer to skb. yes, the skb. the main character of the whole networking saga 👑
  • off — pointer to the struct that holds offload parameters. this little struct is carrying the offload vibes so idpf_tso knows what's up.

💀 RETURN 💀

so here's the vibe check on what you get back:

  • error (negative) — if TSO was requested but it cannot be applied to the given skb. not me getting a negative back 😭 that's your sign something's not slaying.
  • 0 — if TSO does not apply to the given skb. like, not today bestie, TSO's not invited.
  • 1 — otherwise. the happy path, the yes-queen path ✨

🔥 SEE ALSO 🔥

the kernel file lives right here, go say hi:

  • Kernel file ./drivers/net/ethernet/intel/idpf/idpf_txrx.c

and now — the friend group. the whole entire friend group. every one of these is invited to the function party, and yes, we're listing all of them because nobody gets left out 💜

and that's the whole page bestie, you ate that 🍓 this little beauty came out of ./drivers/net/ethernet/intel/idpf and the manual's dated October 2026 — so like, future-coded of it. mwah, go compute some mss 💅✨

📦 where this page comes from