Issue uevents during PCI recovery using pci_uevent_ers() as done by EEH
and AER PCIe recovery routines.
Reviewed-by: Lukas Wunner <lu...@wunner.de>
Signed-off-by: Niklas Schnelle <schne...@linux.ibm.com>
---
arch/s390/pci/pci_event.c | 3 +++
drivers/pci/pci-driver.c | 2 +-
include/linux/pci.h | 2 +-
3 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index
d930416d4c903f709764b75fe45fb66e529fcc5b..b95376041501f479eee20705d45fb8c68553da71
100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -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);
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index
94ba6938b7c6271b557cc7f17ffb89631d83827e..2f3037050fd011108ef93e39d2d78a5c7e22fd05
100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1578,7 +1578,7 @@ 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
diff --git a/include/linux/pci.h b/include/linux/pci.h
index
05e68f35f39238f8b9ce08df97b384d1c1e89bbe..bcc412a21d93a6dcc566f011258ed39d80d896c2
100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2737,7 +2737,7 @@ 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
--
2.48.1
