i40e_add_fdir_ethtool(9)

📦 version 7.3.1, in nixpkgs unstable

💖 i40e_add_fdir_ethtool(9) 💖

okay bestie, welcome to i40e_add_fdir_ethtool — that's section 9 of the Kernel API Manual, and she's living her best life in the Intel i40e driver's ethtool era. no cap, this one's a small page but she does exactly what her name says. 🦋

✨ NAME ✨

i40e_add_fdir_ethtool — literally the function that Add/Removes Flow Director filters 🎀

🌈 SYNOPSIS 🌈

int i40e_add_fdir_ethtool (struct i40e_vsi *vsi , struct ethtool_rxnfc
*cmd );

that's it. two args, one int coming back at you. short and iconic. 💅

🎀 ARGUMENTS 🎀

  • vsi — a pointer to the targeted VSI. that's the VSI we're aiming at, bestie. 🎯
  • cmd — the command to get or set RX flow classification rules. she's the one carrying the actual instructions. ✨

💜 DESCRIPTION 💜

okay so the whole vibe here: this function adds Flow Director filters for a specific flow spec based on their protocol. that's the assignment, and she ate. 🔥

and the return situation? it returns 0 if the filters were successfully added. that's the success signal — anything else and you know something went sideways. ngl, 0 has never looked so good. 💀

🫶 SEE ALSO 🫶

the friend group is huge, i'm not even exaggerating — everyone in this list is family:

like i said. a whole squad. 🌈👑

bestie reminder: this page lives in ./drivers/net/ethernet/intel/i40e — that's the source directory, that's the version vibe — and it's dated October 2026. 🗓️💖

later, legend — go add (or remove) some filters, and remember: 0 means slay. ✨🫶🎀

📦 where this page comes from