ice_clear_phy_tstamp_e810(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_clear_phy_tstamp_e810 ✨

okay so this is a page from the Kernel API Manual, section 9, and bestie it is such a niche little corner of the kernel and honestly that's what makes it iconic. it's giving "deep in the Intel ice driver, clearing one (1) timestamp bit" energy and i'm obsessed.

🌸 NAME 🌸

ice_clear_phy_tstamp_e810 — clear a timestamp from the external PHY 🎀

🦋 SYNOPSIS 🦋

int ice_clear_phy_tstamp_e810 (struct ice_hw *hw , u8 lport , u8 idx );

like, that's the whole signature. three args. no drama. periodt. 💅

✨ ARGUMENTS ✨

  • hw — pointer to the HW struct 🫶 the big hardware-context situation.
  • lport — the lport to read from 👀 yes queen, read.
  • idx — the timestamp index to reset 🔥 this is the one you're clearing, bestie.

💜 DESCRIPTION 💜

so the vibe here is: it reads the timestamp first, and then it forcibly overwrites its value so the valid bit gets cleared out of the timestamp block of the external PHY on the E810 device. like, read it, then hard-overwrite it. no cap, that's the move. ✨

🚨 okay but listen — this function should only be called on an idx whose bit is set according to ice_get_phy_tx_tstamp_ready. that's the prerequisite. don't skip the vibe check first, fr fr. 😭

🧚 SEE ALSO 🧚

ma'am. there is a list. and we are gonna get through it together. 💀💖 it all lives in the kernel file:

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

the opening squad: 🎀

the eth56g chapter: 🦋

the e82x section (hi bestie, we're halfway): 🌈

the e810 chapter — our actual main character's family: 👑

the e830 crew: ⭐

the generic / glue-level besties: 🍓

and the CGU cool-down finale: 🧚

and that's the whole page, bestie!! 🫶💖 sign-off time: this lil masterpiece comes from the kernel source at ./drivers/net/ethernet/intel/ice, dated October 2026, and it's filed as ice_clear_phy_tstamp_e810(9). slay. go clear that valid bit responsibly. 💅✨

📦 where this page comes from