ice_sched_replay_node_bw(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_sched_replay_node_bw — a whole vibe 💅

okay so bestie, you know ice_sched_replay_node_bw(9) from the Kernel API Manual? we're getting into it. this is the function that literally brings a node's bandwidth back to life, and I'm obsessed. let's break it down fr fr. ✨

🌸 SYNOPSIS 🌸

like, the actual signature, no cap:

int ice_sched_replay_node_bw (struct ice_hw *hw , struct ice_sched_node
*node , struct ice_bw_type_info *bw_t_info );

it's giving "int" return type and three lil arguments, and honestly? iconic. 🫶

🎀 ARGUMENTS 🎀

okay so every single one, and yes we're covering all of them because I would never do you dirty like that:

  • hw — pointer to the HW struct. like, the hardware's whole soul, basically. you're handing the function a pointer to the struct ice_hw and it needs it. periodt.
  • node — sched node to configure. this is the specific scheduler node you're about to give a little bandwidth makeover to. main character energy right here.
  • bw_t_info — BW type information. the bandwidth info, all typed up and ready to go. this is the source of truth for the restore. 🦋

✨ DESCRIPTION ✨

so here's the tea: this function restores node's BW from bw_t_info. that's literally the whole mission. like, it takes the bandwidth type info and replays it back onto the node. simple, clean, slay.

but bestie, listen—the caller needs to hold the scheduler lock. this is not optional. no lock, no function, no discussion. it's giving "read the room" but for concurrency. hold that scheduler lock like your life depends on it. 😭

👑 SEE ALSO 👑

okay this list is long and every single one matters so we're not skipping a single reference. grab a snack, hydrate, and let's go through the whole friend group:

  • the kernel file itself: ./drivers/net/ethernet/intel/ice/ice_sched.c — that's the home base, the origin story, the place where all of this lives. 💖

and then, in order, the whole crew (yes, every one, and I'm listing them exactly as given):

that's literally all of them, every single one, and I'm not even tired. 💅✨

okay so that's the page! and for the cute sign-off: this whole thing lives under ./drivers/net/ethernet/intel/ice in the October 2026 Kernel API Manual, so like… remember that, bestie, and go replay some node bandwidth responsibly. hold that lock. slay. 🎀🦋🌸👑💖

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