wx_ptp_rx_hang(9)

📦 version 7.3.1, in nixpkgs unstable

✨ wx_ptp_rx_hang — the Rx timestamp watchdog 💅

Okay bestie, so this one is from the Kernel API Manual (section 9, the kernel-functions girlies) and it's literally about catching a device that got its vibes permanently messed up. Let's get into it 🫶

🌸 NAME 🌸

wx_ptp_rx_hang — detect error case when Rx timestamp registers latched ✨

Like, it's the function that spots the cursed scenario where the Rx timestamp registers got themselves latched and never let go 😭

🎀 SYNOPSIS 🎀

void wx_ptp_rx_hang (struct wx *wx );

That's it. That's the whole signature. No return value, no drama, void and done 👑

🦋 ARGUMENTS 🦋

  • wx — pointer to wx struct 💖 (yes, the parameter is literally named the same as its type, iykyk, we don't question the naming choices of the wangxun girlies)

🌈 DESCRIPTION 🌈

okay so picture this: this watchdog task is scheduled to detect an error case where the hardware has dropped an Rx packet that was timestamped when the ring is full 👀

The particular error is rare, but — and this is the part that eats — it leaves the device in a state where it's unable to timestamp any future packets 💀 so like, permanently off its game. Not slay. That's exactly why this watchdog exists, fr fr.

bestie take note: "rare" does not mean "fine". A rare error that bricks your timestamping forever is still a whole situation 😭

🔥 SEE ALSO 🔥

Kernel file ./drivers/net/ethernet/wangxun/libwx/wx_ptp.c — go read the source, it's giving main character energy ⭐

The whole PTP friend group, basically 🧚💜

and that's the page!! 🌸 This one comes from the kernel docs at ./drivers/net/ethernet/wangxun... and it's dated October 2026, with the manual page itself being wx_ptp_rx_hang(9) 🎀 Go timestamp something, bestie — carefully 💅💖

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