ixgbe_acquire_msix_vectors(9)

📦 version 7.3.1, in nixpkgs unstable

💖 ixgbe_acquire_msix_vectors(9) — the Kernel API Manual glow-up ✨

okay so bestie, welcome to the Kernel API Manual entry for ixgbe_acquire_msix_vectors — this is the part of the kernel docs where the ixgbe driver goes "hey can I get some interrupts pls" and the kernel either says slay or says no 💅

🌸 NAME 🌸

ixgbe_acquire_msix_vectors — acquire MSI-X vectors 🎀

like, that's literally the whole thing. it acquires MSI-X vectors. it's giving "function name tells you exactly what it does" energy and honestly? obsessed 😌

✨ SYNOPSIS ✨

int ixgbe_acquire_msix_vectors (struct ixgbe_adapter *adapter );

that's the signature, copied character for character because we do NOT mess with code in this house 🫶

🦋 ARGUMENTS 🦋

  • adapter — the board private structure 💖 this is the lil data blob that holds all the driver's private state for the board. main character energy, honestly.

💜 DESCRIPTION 💜

so what does it actually do?? it attempts to acquire a suitable range of MSI-X vector interrupts 🔥 that's the whole vibe — go out there, try to grab a nice matching set of MSI-X interrupt vectors.

and if it can't?? for any reason at all?? it returns a negative error code 😭 no cap. not zero, not a happy little success, a negative error code. so if you're the one calling this, keep that in mind — negative means it didn't work out, and it doesn't tell you why beyond "nope" 💀

bestie pls note: the "for any reason" part is doing a LOT of heavy lifting there. it's not a specific error situation, it's just... any failure. that's the documented behaviour, don't @ me.

🔍 SEE ALSO 🔍

the kernel file lives at ./drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c 📁 and here's the whole friend group of related functions — go read them too, they're all part of the same ixgbe queue/interrupt saga 👑

like literally the entire queue-allocation-to-interrupt-teardown pipeline, start to finish. iykyk 🌈

🎀 the sign-off 🎀

this lil page came from ./drivers/net/ethernet/intel/i... (yes it's truncated in the source, we're keeping it exactly as-is, no editing the lore 🙈) and it's dated October 2026 ⭐ and the page itself is ixgbe_acquire_msix_vectors(9) in the Kernel API Manual.

okay that's the whole page, go forth and acquire your vectors responsibly bestie 🦋💖✨

📦 where this page comes from