ksz_dcb_init_port(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ksz_dcb_init_port — the kernel API manual, but make it make sense

okay so bestie, welcome to the ksz_dcb_init_port(9) page 💖 this is the one that gets a single port on a KSZ switch all set up with its DCB config. it's giving "small function, big responsibility" and honestly? we love to see it.

✨ NAME ✨

ksz_dcb_init_port — Initializes the DCB configuration for a port on a KSZ

like, literally the whole job description right there in the name. no notes. 🎀

🌸 SYNOPSIS 🌸

int ksz_dcb_init_port (struct ksz_device *dev , int port );

three things and a return type, that's the whole vibe. keep them exactly like this or the compiler will simply not be your friend.

🦋 ARGUMENTS 🦋

  • dev — Pointer to the KSZ switch device structure. it's the switch. the actual hardware object. the main character, if you will 👑
  • port — Port number for which to initialize the DCB configuration. yes, this one. that specific port. pick your fave, this is the one getting configured ✨

💜 DESCRIPTION 💜

So here's the tea: this function initializes the DCB configuration for the specified port on a KSZ switch ☕ Particular DCB configuration is set for the port, including the default priority and apptrust selectors. ngl that's a lot of words for "it sets the port's DCB stuff up right", but the details matter so here they are:

  • The default priority is set to Best Effort — very on brand, very reasonable, we respect it 🫶
  • The apptrust selectors are set to all supported selectors — yes, all of them. no skimping. the whole menu 💅

so after this call, your port has a default priority and a full set of apptrust selectors and it's ready to live its best life. iconic behaviour fr fr ✨

🔥 RETURN 🔥

  • 0 on success 🎉
  • a negative error code on failure 😭 — so like, always check it, bestie. don't just assume it ate.

⭐ SEE ALSO ⭐

the whole friend group 🫶 go say hi to everyone:

Kernel file ./drivers/net/dsa/microchip/ksz_dcb.c

that's a long list but every single one of them is doing her thing and we're not skipping any. periodt 💅

ok little disclaimer-adjacent moment: the description really does say the default priority is Best Effort and apptrust selectors are set to all supported selectors. that's the whole spec. don't go adding your own lore 🙈

and that's the page!! 🎀 this whole thing lives under ./drivers/net/dsa/microchip and the docs are dated October 2026 — so future girlies will still be reading this and hopefully understanding it, thanks to us 🌈✨ mwah 💖

📦 where this page comes from