i40e_prepare_fdir_filter(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

Okay bestie, this is the i40e_prepare_fdir_filter(9) page from the Kernel API Manual, and it's literally about Prepare and program fdir filter 💅. The function is i40e_prepare_fdir_filter, and yes, that's the whole name, no cap.

🌸 SYNOPSIS 🌸

       int i40e_prepare_fdir_filter (struct i40e_pf *pf , struct
       i40e_fdir_filter *fd_data , bool add , char *packet_addr , int
       payload_offset , u8 pctype );

🎀 ARGUMENTS 🎀

Here's the cast, bestie:

  • pf — physical function to attach filter to
  • fd_data — filter data
  • add — add or delete filter
  • packet_addr — address of dummy packet, used in filtering
  • payload_offset — offset from dummy packet address to user defined data
  • pctype — Packet type for which filter is used

✨ DESCRIPTION ✨

It's a helper function 💖: it offsets data of the dummy packet, programs it, and handles errors. That's the vibe. No extra lore — just doing the dummy-packet offset thing, programming it, and catching the errors when they show up 😭.

🦋 SEE ALSO 🦋

The Kernel file is ./drivers/net/ethernet/intel/i40e/i40e_txrx.c, and the whole cross-reference crew is:

That's the whole page, bestie 🫶. It came from the ./drivers/net/ethernet/intel/i40e corner of the kernel, dated October 2026, and it's signing off as i40e_prepare_fdir_filter(9) 💜✨.

📦 where this page comes from