efct_pci_io_error_detected(9)

💅 efct_pci_io_error_detected(9) — Kernel API Manual

okay so bestie, welcome to the Kernel API Manual page for efct_pci_io_error_detected. it's giving "the friend who handles the crisis so you don't have to" energy, and honestly? iconic. 🫶

---

✨ NAME ✨

efct_pci_io_error_detected — the method for handling PCI I/O error. no cap, that's literally its whole job.

---

🦋 SYNOPSIS 🦋

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

look at her. two args, one return type, zero drama (well, some drama — it's an error handler after all 😭).

---

🎀 ARGUMENTS 🎀

• pdev — pointer to PCI device. yeah, the whole device, just a pointer to it, no big deal 💅
• state — the current PCI connection state. like a vibe check but for your bus connection.

---

🌸 DESCRIPTION 🌸

okay so here's the tea. this routine is registered to the PCI subsystem for error handling — meaning it's on the official call list, it has main character energy in the error-recovery storyline 👑

this function gets called by the PCI subsystem after a PCI bus error affecting this device has been detected. so when things go sideways, the kernel doesn't panic-text the group chat — it calls her.

when this routine is invoked, it dispatches the device error detected handling routine, which will perform the proper error detected operation. that's the whole arc: something breaks, she hands it off to the right handler, the right handler does the right thing. teamwork, slay, periodt ✨

and then there's the return codes, which are very much the "so how are we doing?" part of the conversation:

• PCI_ERS_RESULT_NEED_RESET — need to reset before recovery. it's not broken forever, it just needs a little nap and a restart 🔄
• PCI_ERS_RESULT_DISCONNECT — device could not be recovered. yeah. that one hurts. the device is not coming to the group chat anymore 💀

no cap, those two results are doing very different emotional work. one is "we can fix this", the other is "we literally cannot".

---

🔥 SEE ALSO 🔥

• Kernel file ./drivers/scsi/elx/efct/efct_driver.c — go read the source bestie, it's all in there 👀

---

and that's the page!! 🧚

cute little sign-off: this one lives in ./drivers/scsi/elx/efct, and it's dated October 2026 — future vibes only ⭐💜

bye bestie, go handle those I/O errors responsibly 🎀🌈