idpf_prep_ma...t_vector_msg(9)

📦 version 7.3.1, in nixpkgs unstable

💅 idpf_prep_ma...t_vector_msg(9) ✨

okay bestie, welcome to section 9 of the Kernel API Manual — yes, the truncated-looking name up there is the real page name, that's not a typo, the man page gods just did that 💀

This one's all about idpf_prep_map_unmap_queue_set_vector_msg, which lowkey has the longest name ever but honestly? She's a helper. She helps. Let's get into it 🫶

🌸 NAME 🌸

idpf_prep_map_unmap_queue_set_vector_msg — the function that prepares the message for mapping or unmapping a queue set to the interrupt vector. Both directions, one function, main character energy fr fr 👑

✨ SYNOPSIS ✨

u32 idpf_prep_map_unmap_queue_set_vector_msg (u32 vport_id , void *buf ,
       const void *pos , u32 num_chunks );

Look at that return type: u32. She gives you a number back. We'll get to that 💖

🎀 ARGUMENTS 🎀

  • vport_id — the ID of the virtual port that the queues are associated with. Like, whose queues are we even talking about? This. This is who 🦋
  • buf — the buffer containing the message. The whole vibe lives in here ✨
  • pos — pointer to the first chunk describing the vector mapping. Chunk one, right there, pointed at 📍
  • num_chunks — how many chunks are in the message. Gotta know the count, no cap 🔢

🧚 DESCRIPTION 🧚

So what does she actually do? She's a helper function — and her whole job is preparing the message that describes mapping queues to q_vectors. That's it. That's the gig. She preps, somebody else sends 💅

Like, not to be dramatic, but every iconic send needs an equally iconic prep step first. This is the prep step.

⭐ RETURN ⭐

She returns the total size of the prepared message. Yup — total size. Measured. Returned. As a u32 🎀

no error codes, no negative vibes, just a size. slay.

👑 SEE ALSO 👑

Okay so this is the part where I need you to hydrate and breathe, because this list is long and I am not skipping a single one of them. Every single friend on the guest list is coming in 💀🌸

And yes, the kernel file they all live in:

./drivers/net/ethernet/intel/idpf/idpf_virtchnl.c

Here's the full squad, in order, exactly as invited 🫶

🫶 reminder bestie: that reference dump is not decoration, it's the whole neighborhood. If you're poking at queue-to-vector mapping, half your answers live in one of the idpf_*(9) pages above. iykyk 💜

sign-off time 🎀 — this lil beauty comes from ./drivers/net/ethernet/intel/idpf, and the version stamp on it is October 2026. so like, go forth, map your queues, unmap your queues, and return that total size with your whole chest 🦋✨ periodt 💅

📦 where this page comes from