t3_io_error_detected(9)

📦 version 7.3.1, in nixpkgs unstable

💅 t3_io_error_detected — the Kernel API Manual page, bestie edition 🎀

okay so welcome to the Kernel API Manual, specifically the page for t3_io_error_detected(9). yes it's a function name that looks like a wifi password, no we're not scared of it. let's go ✨

🌸 NAME 🌸

t3_io_error_detected — the function that gets called when a PCI error is detected. that's it. that's the whole name section. iconic brevity honestly 🫶

✨ SYNOPSIS ✨

the whole signature, verbatim, no edits, no notes (i would never):

pci_ers_result_t t3_io_error_detected (struct pci_dev *pdev ,
       pci_channel_state_t state );

so it hands you back a pci_ers_result_t, and it wants a struct pci_dev *pdev plus a pci_channel_state_t state. two args, one return, zero drama 💅

🦋 ARGUMENTS 🦋

  • pdev — a pointer to the PCI device. literally just a pointer to the device in question, that's the whole vibe 🌈
  • state — the current pci connection state. the situation, the moment, the ~current circumstances~ if you will ⭐

💖 DESCRIPTION 💖

okay so here's the tea: this function is called after a PCI bus error affecting this device has been detected. not before. not during. after. the error already happened, the bus already told on itself, and now this function gets the call 😭

that's the whole description. no cap, that's all the manpage gives us, and honestly? respect for the restraint 🔥

👑 SEE ALSO 👑

the kernel file to go snoop through:

Kernel file ./drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c

and the whole friend group, in order, exactly as listed:

not me listing all ten like a group chat roll call 🫶 these are the ones you go read next, iykyk.

ngl if you're here because a PCI error showed up in your dmesg, that's rough bestie, but at least now you know which function caught the stray 💀

and that's the page!! source lives in ./drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c and the version stamp on this whole thing is dated October 2026 — so go forth, read your kernel source, and slay 💖🎀✨ 🧚

📦 where this page comes from