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s390/pci: Use pci_uevent_ers() in PCI recovery

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Issue uevents on s390 during PCI recovery using pci_uevent_ers() as done by
EEH and AER PCIe recovery routines.

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Link: https://patch.msgid.link/20250807-add_err_uevents-v5-2-adf85b0620b0@linux.ibm.com
This commit is contained in:
Niklas Schnelle
2025-08-07 15:55:39 +02:00
committed by Bjorn Helgaas
parent bbf7d0468d
commit dab32f2576
3 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/s390/pci/pci_event.c
View File

@@ -88,6 +88,7 @@ static pci_ers_result_t zpci_event_notify_error_detected(struct pci_dev *pdev,
pci_ers_result_t ers_res = PCI_ERS_RESULT_DISCONNECT;
ers_res = driver->err_handler->error_detected(pdev, pdev->error_state);
pci_uevent_ers(pdev, ers_res);
if (ers_result_indicates_abort(ers_res))
pr_info("%s: Automatic recovery failed after initial reporting\n", pci_name(pdev));
else if (ers_res == PCI_ERS_RESULT_NEED_RESET)
@@ -244,6 +245,7 @@ static pci_ers_result_t zpci_event_attempt_error_recovery(struct pci_dev *pdev)
ers_res = PCI_ERS_RESULT_RECOVERED;
if (ers_res != PCI_ERS_RESULT_RECOVERED) {
pci_uevent_ers(pdev, PCI_ERS_RESULT_DISCONNECT);
pr_err("%s: Automatic recovery failed; operator intervention is required\n",
pci_name(pdev));
status_str = "failed (driver can't recover)";
@@ -253,6 +255,7 @@ static pci_ers_result_t zpci_event_attempt_error_recovery(struct pci_dev *pdev)
pr_info("%s: The device is ready to resume operations\n", pci_name(pdev));
if (driver->err_handler->resume)
driver->err_handler->resume(pdev);
pci_uevent_ers(pdev, PCI_ERS_RESULT_RECOVERED);
out_unlock:
pci_dev_unlock(pdev);
zpci_report_status(zdev, "recovery", status_str);

2
drivers/pci/pci-driver.c
View File

@@ -1582,7 +1582,7 @@ static int pci_uevent(const struct device *dev, struct kobj_uevent_env *env)
return 0;
}
#if defined(CONFIG_PCIEAER) || defined(CONFIG_EEH)
#if defined(CONFIG_PCIEAER) || defined(CONFIG_EEH) || defined(CONFIG_S390)
/**
* pci_uevent_ers - emit a uevent during recovery path of PCI device
* @pdev: PCI device undergoing error recovery

2
include/linux/pci.h
View File

@@ -2764,7 +2764,7 @@ static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev)
return false;
}
#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH)
#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH) || defined(CONFIG_S390)
void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type);
#endif