pcie_wait_for_link_status(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, welcome to pcie_wait_for_link_status(9) from the Kernel API Manual — this is the little function that just waits for your PCIe link to get its life together and change status. She's patient, she's got a timeout, and honestly? iconic behavior. 🎀

✨ NAME ✨

pcie_wait_for_link_status — literally just "wait for link status change", no cap, that's the whole vibe 💅

🦋 SYNOPSIS 🦋

int pcie_wait_for_link_status (struct pci_dev *pdev , bool use_lt , bool
active );

🌸 ARGUMENTS 🌸

  • pdev — the device whose link you're waiting on. like, this is the diva we're watching 👀
  • use_lt — which bit are we checking, bestie? pass TRUE and we're using the LT bit; pass FALSE and it's the DLLLA bit instead. pick your fighter ✨
  • active — are we waiting for the link to be active or inactive? that's the question 🫶

⭐ DESCRIPTION ⭐

Returns 0 if everything went off without a hitch — successful, slay, periodt. 💖

But if the status still hasn't changed within PCIE_LINK_RETRAIN_TIMEOUT_MS milliseconds? It hits you with -ETIMEDOUT. 😭 yeah. she waited, she gave it time, and the link simply did not deliver. rude.

not me checking my watch for exactly PCIE_LINK_RETRAIN_TIMEOUT_MS milliseconds — the patience of an angel, the result of a flop 🕰️💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/pci/pci.c — go read her, she's the source of truth 🧚

and that's the whole page bestie — you ate that 💅✨

kisses and see-you-laters from ./drivers/pci, dated October 2026 — she really said "I'm from the future and I still can't get this link to report in time" 💀💖🦋

📦 where this page comes from