iavf_fill_fdir_udp_hdr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iavf_fill_fdir_udp_hdr — the iavf manual, section 9 🎀

okay so bestie, this one's from the iavf kernel API manual (section 9, kernel-dev vibes) and honestly? It's a little cutie. She fills in the UDP protocol header for Flow Director filtering, and that's literally her whole job. No cap. 🦋

✨ NAME ✨

iavf_fill_fdir_udp_hdr — fill the UDP protocol header 💖

Like, she takes your Flow Director filter and your protocol headers struct and goes "here, let me handle the UDP part for you." Iconic behaviour, truly. 👑

🌸 SYNOPSIS 🌸

int iavf_fill_fdir_udp_hdr (struct iavf_fdir_fltr *fltr , struct
       virtchnl_proto_hdrs *proto_hdrs );

Note the line wrap in the original signature — yes, it's giving "my IDE gave up halfway," but we're keeping it exactly as-is because facts > aesthetics. 💅

🎀 ARGUMENTS 🎀

  • fltr — the Flow Director filter data structure 🫶 like, the filter itself, the main character of this whole operation
  • proto_hdrs — the Flow Director protocol headers data structure ✨ the place where the header info actually lives

Two structs walk into a function. That's it. That's the bit. 😭

🔥 DESCRIPTION 🔥

Returns 0 if the UDP protocol header is set successfully ⭐

That's the whole deal, bestie — 0 means slay, the header got set, we move on with our lives. Anything else and, well, she's telling you something's off. 🌈

ngl this page is short, but that's not a flaw, that's focus. She knows exactly what she does and she does it. periodt. 💀

🧚 SEE ALSO 🧚

The whole friend group 🫶 — first up, the source file where the magic lives:

  • Kernel file ./drivers/net/ethernet/intel/iavf/iavf_fdir.c

And then literally the entire squad of sibling functions, all here, no one left out:

Lowkey a whole header-filling cinematic universe. Go read them all, iykyk. 📚💜

and that's the page, bestie!! 🍓 this little gem comes from ./drivers/net/ethernet/intel/iavf, dated October 2026 — so like, future me is still out here filling UDP headers and looking gorgeous doing it. mwah 💋✨🎀

📦 where this page comes from