libie_ctlq_alloc_queue_res(9)

📦 version 7.3.1, in nixpkgs unstable

Welcome to the Kernel API Manual, bestie — section 9, the kernel-internals corner of the universe 🧚 We're gonna talk about libie_ctlq_alloc_queue_res, and honestly? It's giving "unsung hero of ring allocation" energy 💅

✨ NAME ✨

libie_ctlq_alloc_queue_res — allocate memory for descriptor ring and bufs 🎀

That's it, that's the whole vibe: this one goes and gets the memory for a control queue's descriptor ring and its bufs. Two for the price of one, no cap.

🌸 SYNOPSIS 🌸

int libie_ctlq_alloc_queue_res (struct libie_ctlq_info *ctlq );

ok so she takes exactly one arg and hands you back an int. Simple queen behavior 👑

🦋 ARGUMENTS 🦋

  • ctlq — control queue that requires its ring resources to be allocated 🌈

Like, this is the queue that's sitting there like "bestie I literally have no ring memory, help me out", and you point at her and this function handles it. That's the whole job.

💖 RETURN 💖

  • 0 on success 🎉
  • -errno on failure 😭

So if you get a 0 you can go off and celebrate, and if you get a negative errno... that's your sign to go read the errno, babes. -errno on failure, fr fr.

⚠️ Real talk: always vibe check that return value. Zero is slay, negative means something did not eat.

🔥 SEE ALSO 🔥

The source lives in the kernel file ./drivers/net/ethernet/intel/libie/controlq.c — that's the mothership 🫶 And here's the whole friend group, because these functions literally all know each other:

Like... that's the whole extended cast. Exhibit A of "the way that this subsystem has so many functions" 💀

okay that's the page, mwah 💋 Sourced from ./drivers/net/ethernet/intel/l... and dated October 2026, and yes this page is literally titled libie_ctlq_alloc_queue_res(9) — go forth and allocate responsibly, bestie 🍓

📦 where this page comes from