ice_cpi_set_cmd(9)

📦 version 7.3.1, in nixpkgs unstable

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

okay so picture this: you're deep in the kernel, you're in the Intel ice driver, and you need to actually run a CPI SET command. That's it. That's the whole function. It's giving "small but mighty" and honestly? Obsessed. ✨

🌸 NAME 🌸

ice_cpi_set_cmd — literally just executes the CPI SET command, no cap

🦋 SYNOPSIS 🦋

int ice_cpi_set_cmd (struct ice_hw *hw , u8 opcode , u8 phy , u8
port_lane , u16 data );

she takes five args and she returns an int, periodt 💅

✨ ARGUMENTS ✨

  • hw — pointer to the HW struct 🫶 like, the whole hardware context, she needs to know where she's working
  • opcode — the CPI command opcode 👑 this is the "what are we even doing" of it all
  • phy — phy index the CPI command is applied for 🌸 which phy we're talking to
  • port_lane — ephy index the CPI command is applied for 🦋 (yes bestie, ephy — not a typo, that's a different thing)
  • data — CPI opcode context specific data 🍓 the payload, the extra lil somethin' that the opcode needs

🔥 RETURN 🔥

  • 0 on success — slay, she ate, everything worked 💖
  • negative error code on failure 😭 — something went sideways, and the number will tell you how

🌈 SEE ALSO 🌈

the kernel file, in all her glory: ./drivers/net/ethernet/intel/ice/ice_cpi.c 📁

and the whole CPI friend group, fr fr — go say hi to:

ok real talk: this page is a (9) section manpage, so it's kernel-internal API — you're not gonna find it in man on your laptop unless you've got the kernel docs set up. iykyk 💀

and that's the whole vibe check, bestie 🧚 this came out of ./drivers/net/ethernet/intel/ice and it's dated October 2026 — go forth and execute your CPI SET commands responsibly 💜💅

📦 where this page comes from