igc_alloc_q_vector(9)

📦 version 7.3.1, in nixpkgs unstable

💅 igc_alloc_q_vector(9) — from the Kernel API Manual, bestie 🎀

okay so picture this: you're deep in the Intel igc driver, you need one (1) single interrupt vector to exist in memory, and this is the function that makes it happen. she's a builder, she's a queen, she's igc_alloc_q_vector. ✨

✨ SYNOPSIS ✨

int igc_alloc_q_vector (struct igc_adapter *adapter , unsigned int
       v_count , unsigned int v_idx , unsigned int txr_count , unsigned int
       txr_idx , unsigned int rxr_count , unsigned int rxr_idx );

like, seven whole arguments. she's high maintenance but she delivers. 💅

🌸 ARGUMENTS 🌸

  • adapter — the board private structure you're initializing. this is the main character, everything else is a supporting role. 👑
  • v_count — how many q_vectors are allocated on adapter. it's used for ring interleaving, so like, don't lie to her about the count. 🙈
  • v_idx — the index of this vector inside the adapter struct. that's her seat number. 🎟️
  • txr_count — the total number of Tx rings to allocate. all the sending vibes. 🔥
  • txr_idx — the index of the first Tx ring to allocate. where the Tx block starts, basically. ⭐
  • rxr_count — the total number of Rx rings to allocate. all the receiving vibes. 🌈
  • rxr_idx — the index of the first Rx ring to allocate. where the Rx block starts. 🦋

💖 DESCRIPTION 💖

so the whole thing is literally this: we allocate one q_vector. that's it, that's the job. 🫶

and if that allocation fails? we return -ENOMEM. no drama, no elaborate error, just a clean little "bestie there is no memory" and she's out. 😭

🔍 SEE ALSO 🔍

the igc cinematic universe, ft. literally everyone. iykyk 💀

genuinely obsessed with how this list has everyone. if you're reading a q_vector page you're in the igc friend group now, no takebacks. 🫶

and that's the whole page bestie!! 🌈 sourced from ./drivers/net/ethernet/intel/igc, dated October 2026 — this manual page said periodt and logged off 💜✨🎀

📦 where this page comes from