ksz8_cpu_port_link_up(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, buckle up, because this little function lives in the Kernel API Manual and it's about to configure the CPU port of your switch. no cap. 🫶

✨ NAME ✨

ksz8_cpu_port_link_up — Configures the CPU port of the switch. that's it, that's the whole vibe check. 💅

🌸 SYNOPSIS 🌸

void ksz8_cpu_port_link_up (struct ksz_device *dev , int speed , int
       duplex , bool tx_pause , bool rx_pause );

literally just one call, returns nothing (void), takes five arguments. she's lowkey efficient like that. 🎀

🦋 ARGUMENTS 🦋

  • dev — the KSZ device instance. your main character struct, iykyk.
  • speed — the desired link speed. yes queen, pick a speed. ⚡
  • duplex — the desired duplex mode. we're communicating both ways bestie. 🗣️
  • tx_pause — if true, enables transmit pause. if it's true, she pauses on the way out. 🙈
  • rx_pause — if true, enables receive pause. if it's true, she pauses on the way in. 😭

💖 DESCRIPTION 💖

so the whole point of this function? it configures flow control and speed settings for the CPU port of the switch. 🎀

and it does that based on:

  • the desired settings you just passed in,
  • the current duplex mode,
  • and the speed.

that's the trio. that's the whole recipe. she looks at all three and makes the CPU port link go up. no notes, ate, periodt. 💅✨

👑 SEE ALSO 👑

the kernel file lives at ./drivers/net/dsa/microchip/ksz8.c, and honestly the whole friend group shows up here, so let's give them their moment:

the whole squad. slay. 🌈👑

ngl, that's the entire page. nothing dangerous, nothing deprecated, nothing undefined — just a very well-behaved little kernel function doing her thing. 🧚

so yeah, that's the tea from ./drivers/net/dsa/microchip, dated October 2026, filed under ksz8_cpu_port_link_up(9). mwah, love u, go configure some switches bestie 💜🍓

📦 where this page comes from