igb_alloc_q_vectors(9)

📦 version 7.3.1, in nixpkgs unstable

💅 igb_alloc_q_vectors — Kernel API Manual, bestie edition 🎀

okay so this page is literally from the Kernel API Manual, section 9, and it's about the function igb_alloc_q_vectors. yes it's niche. no i don't care. it's iconic and we're gonna understand it together 🫶

✨ NAME ✨

igb_alloc_q_vectors — allocate memory for interrupt vectors 💖

🌸 SYNOPSIS 🌸

int igb_alloc_q_vectors (struct igb_adapter *adapter );

like that's the whole signature. one argument, returns an int. clean, minimal, ate 💅

🦋 ARGUMENTS 🦋

  • adapter — the board private structure that needs initializing 🌈 this is the thing you're handing over, bestie. no adapter, no vibes, no vectors.

💜 DESCRIPTION 💜

so here's the tea: we allocate one q_vector per queue interrupt. that's it. that's the whole personality ✨

and if the allocation fails? bestie, it flops. we return -ENOMEM 😭 no cap, that's the documented failure path, and now you know exactly what to look for when your dmesg is being dramatic.

lowkey important: one vector per queue interrupt. not two, not zero. one. periodt 🎯

⭐ SEE ALSO ⭐

introducing the friend group. the whole group chat. every single mutual. 👑

and that's the whole page, bestie!! you understood it, i'm so proud of you 🧚💫

cute lil sign-off time 🍓: this is from ./drivers/net/ethernet/intel/igb, dated October 2026, and that's genuinely all she wrote. mwah 💋

📦 where this page comes from