pci_enable_pri(9)

📦 version 7.3.1, in nixpkgs unstable

💅 pci_enable_pri — the Kernel API Manual glow-up ✨

okay bestie, so this one's called pci_enable_pri(9), straight out of the Kernel API Manual, and it's literally the little function that turns the PRI capability on. short king, but iconic. let's get into it 🫶

🌸 NAME 🌸

pci_enable_pri — Enable PRI capability. that's it, that's the whole vibe. no cap.

✨ SYNOPSIS ✨

int pci_enable_pri (struct pci_dev *pdev , u32 reqs );

like, you hand it a device and a request count, and it returns an int. she's simple, she's clean, she's giving minimal effort maximum slay 💅

🎀 ARGUMENTS 🎀

  • pdev — PCI device structure. this is the device you're enabling PRI on, the main character of the operation 👑
  • reqs — outstanding requests. yeah, that's the count of outstanding requests you're passing in. u32 fr fr.

🦋 DESCRIPTION 🦋

okay so, the whole lore: pci_enable_pri enables the PRI capability. that's the function.

Returns 0 on success, and a negative value on error. so like, if you get 0 you're slaying, and if you get negative you're in your flop era and need to check on things 😭. that's literally the entire description and honestly? she said what she said. short and correct, periodt.

ngl there's nothing else in the manpage about behaviour here — no extra options, no environment variables, no exit statuses beyond that return value. i'm not gonna invent lore for you bestie, that would be lying and that's not the vibe 🙈

🔥 SEE ALSO 🔥

this is the bestie list, all the sibling functions living in the kernel file ./drivers/pci/ats.c. go say hi to them:

the whole friend group is here, it's giving group chat energy for real 💖

that's the page bestie, no crumbs left behind 🍓. this little beauty lives under ./drivers/pci, and the version stamp on it says October 2026 — so mark your calendar and stan responsibly. mwah, ily, go enable some PRI 💋✨🌈

📦 where this page comes from