igb_check_for_ack_pf(9)

📦 version 7.3.1, in nixpkgs unstable

💖 igb_check_for_ack_pf(9) 💖

okay so this one lives in the Kernel API Manual and it's genuinely so niche and so iconic of the igb driver era. bestie, we're checking whether a VF has ACKed. that's it. that's the whole vibe. 🦋

✨ SYNOPSIS ✨

s32 igb_check_for_ack_pf (struct e1000_hw *hw , u16 vf_number );

like, you hand it a hardware pointer and a VF number and it tells you what's up. no cap. 🎀

🌸 ARGUMENTS 🌸

  • hw — pointer to the HW structure. it's giving "here's the whole hardware, do your thing" main character energy 👑
  • vf_number — the VF index. which virtual function are we talking about, babe? that's the one 🔥

💅 DESCRIPTION 💅

so the way this works: it returns SUCCESS if the VF has set the Status bit, or else it gives you ERR_MBX. that's the entire mood. two outcomes, no in-between, periodt. ⭐

fr fr this is a yes-or-no situation and the answer is literally just SUCCESS or ERR_MBX. know the difference, iykyk 💀

🦋 SEE ALSO 🦋

Kernel file ./drivers/net/ethernet/intel/igb/e1000_mbx.c — that's where the girlies live 📁

that's a whole friend group of mailbox functions and honestly? obsessed. go read them all, they're all slay in their own way 💜

mwah, that's the page, bestie 💖 this one came from the kernel source tree at ./drivers/net/ethernet/intel/igb and it's dated October 2026 — classic. now go ACK something. 🌈

📦 where this page comes from