ixgbevf_alloc_q_vector(9)

📦 version 7.3.1, in nixpkgs unstable

💖 ixgbevf_alloc_q_vector — from the Kernel API Manual, section 9 ✨

okay bestie, gather round, because this one is a kernel networking baddie and it's coming at you straight out of the Kernel API Manual. it's ixgbevf_alloc_q_vector(9) and honestly? it does exactly one thing and it does it iconically. 🎀

🌸 NAME 🌸

ixgbevf_alloc_q_vector — allocate memory for a single interrupt vector. that's it, that's the whole vibe. one vector, one allocation, no cap. ✨

🦋 SYNOPSIS 🦋

int ixgbevf_alloc_q_vector (struct ixgbevf_adapter *adapter , int v_idx
, int txr_count , int txr_idx , int xdp_count , int xdp_idx , int
rxr_count , int rxr_idx );

look at all those parameters. she's got range. 💅

💜 ARGUMENTS 💜

every single one of these matters, so let's not skip a single crumb:

  • adapter — the board private structure you're initializing. main character energy, honestly, everything hangs off this one. 👑
  • v_idx — the index of this vector inside the adapter struct. where she sits in the lineup. ✨
  • txr_count — how many Tx rings this q vector gets. count 'em. 🌸
  • txr_idx — the index of the first Tx ring to assign. not the last — the first. remember that. 🫶
  • xdp_count — the total number of XDP rings to allocate. XDP said "i'm coming too." 💅
  • xdp_idx — the index of the first XDP ring to allocate. 🦋
  • rxr_count — how many Rx rings this q vector gets. the receiving side of the situation. 💖
  • rxr_idx — the index of the first Rx ring to assign. 🎀

🔥 DESCRIPTION 🔥

so the whole plot is this: we allocate one q_vector. that's the assignment. one vector, allocated, done.

and if that allocation fails? we return -ENOMEM. no drama, no guessing, just the classic out-of-memory situation report. 😭

like, that's genuinely the entire description in the original and i refuse to pad it out with lies. one q_vector. -ENOMEM on failure. periodt. 💀

🌈 SEE ALSO 🌈

okay this is the part where the friend group gets HUGE. the kernel file itself is:

./drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

and then, literally, the whole extended crew — every single one of these is invited to the group chat 👑:

like i said. huge friend group. iykyk. 🫶💖

mwah, that's the whole page 💅 — this lil writeup sources from ./drivers/net/ethernet/intel/i... and is dated October 2026, filed under ixgbevf_alloc_q_vector(9). go forth and allocate responsibly, bestie. 🌸✨🎀

📦 where this page comes from