ice_tspll_cfg(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_tspll_cfg(9) — the kernel API manual, bestie edition 🎀

okay so this is ice_tspll_cfg, straight out of the Kernel API Manual (section 9, driver-land, we love her) ✨

✨ NAME ✨

ice_tspll_cfg — configure the Clock Generation Unit TSPLL 👑

Like, she sets up the whole clock thing. Main character energy fr.

🦋 SYNOPSIS 🦋

int ice_tspll_cfg (struct ice_hw *hw , enum ice_tspll_freq clk_freq ,
enum ice_clk_src clk_src );

three args, one int back, no cap 💖

🌸 ARGUMENTS 🌸

  • hw — pointer to the HW struct. yes bestie, the hardware one. give her a real pointer, not a vibe 🙈
  • clk_freq — the clock frequency you wanna program in. pick one, she's not guessing 🕐
  • clk_src — which clock source to select: TIME_REF, or TCXO. that's the whole menu, iykyk 💅

💜 DESCRIPTION 💜

so basically she configures the Clock Generation Unit with the clock frequency and time reference you asked for, and enables the TSPLL — which is the icon that drives the PTP hardware clock 🔥 literally the whole reason your timing works. no TSPLL, no PTP, no slay 💀

⭐ RETURN ⭐

  • 0 — success! we ate 🍓
  • -ERANGE — that MAC type is unsupported, sorry babe 😭
  • other negative error codes — she tried to configure the CGU and it did not go well 🙈

🌈 SEE ALSO 🌈

kernel file ./drivers/net/ethernet/intel/ice/ice_tspll.c aka the source of truth bestie 🫶

and the whole friend group:

lowkey reminder: -ERANGE is a real answer, not a glitch. unsupported MAC = unsupported MAC 💀

and that's the page!! brought to you by ./drivers/net/ethernet/intel/ice, dated October 2026 — mwah, go configure something iconic 🧚‍♀️💖✨

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