i40e_ptp_tx_hwtstamp(9)

📦 version 7.3.1, in nixpkgs unstable

💅 i40e_ptp_tx_hwtstamp(9) — the Kernel API Manual moment ✨

okay so this is a page from the Kernel API Manual bestie, and today's main character is i40e_ptp_tx_hwtstamp 🎀 literally the little utility function that hands you back your Tx timestamp. she's small, she's focused, she slays 🫶

✨ NAME ✨

i40e_ptp_tx_hwtstamp — the utility function that returns the Tx timestamp 💫

🌸 SYNOPSIS 🌸

void i40e_ptp_tx_hwtstamp (struct i40e_pf *pf );

no cap, that's the whole signature. returns nothing (void), takes one pointer, periodt. 👑

🦋 ARGUMENTS 🦋

  • pf — the board private structure 🫶 like, it's the driver's own little stash of per-board info, and you're passing it in so the function knows which board it's working with. iconic.

💖 DESCRIPTION 💖

okay so here's the vibe 🌈 this function reads the value of the Tx timestamp straight out of the registers, converts it into a value that's actually consumable by the stack (because raw register soup is not it 🙈), and then stores that result into the shhwtstamps struct before returning it up the stack. it's giving "prep the data, hand it off, done" energy 💅

so like: registers ➡️ convert ➡️ stuff it in shhwtstamps ➡️ send it on up. three steps and a serve. ate. 🔥

⭐ SEE ALSO ⭐

the kernel file lives right here, mwah 💜:

  • ./drivers/net/ethernet/intel/i40e/i40e_ptp.c

and here's the whole friend group, iykyk 🧚‍♀️ literally every single one:

and that's the whole page bestie, mwah 💋 this lil drop came to you from ./drivers/net/ethernet/intel/i40e, dated October 2026 — go drink some water and go touch the hardware 🌸💜✨

📦 where this page comes from