ice_set_rc_coalesce(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_set_rc_coalesce — like, the manual page, bestie

okay so you're looking at the ice_set_rc_coalesce(9) page from the Kernel API Manual and honestly? it's a little guy but it's important. let's get into it 🫶

✨ NAME ✨

ice_set_rc_coalesce — sets the ITR values for a specific ring container. that's the whole vibe. no cap.

🌸 SYNOPSIS 🌸

int ice_set_rc_coalesce (struct ethtool_coalesce *ec , struct
ice_ring_container *rc , struct ice_vsi *vsi );

like, it returns an int, and it takes three things. we'll get to those. 👑

🎀 ARGUMENTS 🎀

  • ec — the ethtool structure that came from the user, and it's the one carrying the updated ITR settings. she's the messenger. 💌
  • rc — the ring container that the ITR values are gonna come from. this is where the numbers live.
  • vsi — the VSI that's associated with the ring container. every ring container's got one, iykyk.

🦋 DESCRIPTION 🦋

so what it does is set specific ITR values. and it does it per ice_ring_container — which, like, is the whole point, because each q_vector can have 1 or more rings, and every single one of those ring(s) is gonna end up with the same ITR values. so they match. they're in sync. it's giving coordinated. ✨

and then — the part you actually came for — it returns 0 on success, and negative otherwise. so if you see a negative number, something went sideways. 😭

🌈 SEE ALSO 🌈

the kernel file lives right here, bestie:

./drivers/net/ethernet/intel/ice/ice_ethtool.c

and here's the whole friend group — every single one of these, not skipping a single one, because we don't do that here 💖:

like, that's the roster. iconic lineup honestly. 🧚

and that's the page!! this came out of ./drivers/net/ethernet/intel/ice and it's dated October 2026 — so like, future vibes, main character documentation energy, periodt. 💜🍓

📦 where this page comes from