lpfc_io_slot_reset_s4(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_io_slot_reset_s4(9) 💅

okay bestie, welcome to the lpfc_io_slot_reset_s4(9) page from the Kernel API Manual — and no cap, this is the SLI-4 reset bestie that restarts a PCI card from scratch like it just woke up from a cold boot. 🫶

✨ NAME ✨

lpfc_io_slot_reset_s4 — method for restart PCI SLI-4 device from scratch. periodt. 💅

📞 SYNOPSIS 📞

pci_ers_result_t lpfc_io_slot_reset_s4 (struct pci_dev *pdev );

🧾 ARGUMENTS 🧾

  • pdev — pointer to PCI device. that's the whole argument, bestie. 🎀

💖 DESCRIPTION 💖

okay so this routine gets called from the PCI subsystem for error handling on a device with the SLI-4 interface spec. It comes in after the PCI bus has been reset, and its whole job is to restart the PCI card from scratch — literally as if from a cold-boot. 🔥

During PCI subsystem error recovery, after the driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error recovery and then call this routine before calling the .resume method to recover the device. yep, it's the pre-resume reset moment. 💫

This function will initialize the HBA device and enable the interrupt, but it will just put the HBA to offline state without passing any I/O traffic. so like, it wakes the hardware up but keeps it on airplane mode. 🙈

Return codes, bestie:

  • PCI_ERS_RESULT_RECOVERED — the device has been recovered. slay. ✅
  • PCI_ERS_RESULT_DISCONNECT — device could not be recovered. 😭

👀 SEE ALSO 👀

Kernel file ./drivers/scsi/lpfc/lpfc_init.c — now the whole squad, in order, no cap:

and that's the page, bestie! 💖 source/version: ./drivers/scsi/lpfc; date: October 2026; title: lpfc_io_slot_reset_s4(9). bye! 🦋

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