iavf_get_coalesce(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iavf_get_coalesce(9) — the Kernel API Manual, bestie edition 🎀

okay so you're in the iavf corner of the kernel docs, section 9, and the star of the show is iavf_get_coalesce — literally the function that goes "hey, what are your interrupt coalescing settings rn?" and reports back. let's get into it ✨

🌸 SYNOPSIS 🌸

int iavf_get_coalesce (struct net_device *netdev , struct
       ethtool_coalesce *ec , struct kernel_ethtool_coalesce *kernel_coal ,
       struct netlink_ext_ack *extack );

that's the whole vibe. four args, returns an int, slay 💅

🦋 ARGUMENTS 🦋

  • netdev — the network interface device structure. the actual NIC we're talking about, the main character 🫶
  • ec — the ethtool coalesce structure. this is the thing that gets filled in, iykyk
  • kernel_coal — the ethtool CQE mode setting structure ✨
  • extack — extack, for reporting error messages. when something goes sideways it's got opinions 💀

👑 DESCRIPTION 👑

so what does it do? it fills ec with the current coalescing settings. periodt. 🎀

and here's a cute little lore drop: elsewhere in the driver this whole thing is called Interrupt Throttle Rate — that's lowkey just how the hardware describes this functionality, so don't get confused when you see the different name. same energy, different label 🌈

⚠️ important caveat bestie: if per-queue settings have been modified, this only represents the settings of queue 0. not all the queues. just queue 0. don't let it gaslight you into thinking otherwise 😭

💜 SEE ALSO 💜

the whole friend group, in the kernel file ./drivers/net/ethernet/intel/iavf/iavf_ethtool.c:

like, the entire roster. go read them too, no cap 📚

and that's a wrap on this one, bestie 🧚 this page lives in ./drivers/net/ethernet/intel/iavf and the version vibes are dated October 2026 — see you in the next manpage, mwah 💖🌸

📦 where this page comes from