ice_cpi_req0(9)

💫 ice_cpi_req0(9) — the Kernel API Manual tea, bestie 💫

Okay so picture this: you're deep in the ice driver, you're in ice_cpi_req0(9) land, and this little icon's whole entire job is deasserting the LM.REQ bit. That's it. That's the vibe. She's a one-job queen and she eats every time. 👑

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✨ SYNOPSIS ✨

int ice_cpi_req0 (struct ice_hw *hw , u8 phy , u32 data );

Lowkey the shortest glow-up ever — three args, one int, zero drama. 🎀

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🌸 ARGUMENTS 🌸

• hw — pointer to the HW struct 💖 like, the whole hardware's main character record, pls handle with care.
• phy — phy index of port the CPI action is taken on 🦋 so basically which port we're doing the thing to, iykyk.
• data — the command data ⭐ the actual payload getting sent along for the ride.

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🫶 RETURN 🫶

• 0 on success 🎉 slay, we love a clean return.
• negative on CPI write error 😭 not the vibe, but at least it tells you something went wrong.

ngl bestie, negative means bad news — check that CPI write before you spiral.

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💅 SEE ALSO 💅

• Kernel file ./drivers/net/ethernet/intel/ice/ice_cpi.c — the source of truth, go read her fr fr 🔥
• ice_cpi_get_dest_dev(9)
• ice_cpi_write_phy(9)
• ice_cpi_read_phy(9)
• ice_cpi_wait_req0_ack0(9)
• ice_cpi_wait_ack(9)
• ice_cpi_exec_cmd(9)
• ice_cpi_phy_lock(9)
• ice_cpi_exec(9)
• ice_cpi_set_cmd(9)
• ice_cpi_ena_dis_clk_ref(9)

the whole friend group honestly — go say hi to all of them 💜

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🌈 mwah, that's the page! brought to you straight out of ./drivers/net/ethernet/intel/ice, all official and dated October 2026 — catch you in the next manpage, bestie 🧚‍♀️💖