static void eeh_report_error(struct pci_dev *dev, void *userdata)
{
enum pci_ers_result rc, *res = userdata;
struct pci_driver *driver = dev->driver;
dev->error_state = pci_channel_io_frozen;
if (!driver)
return;
if (irq_in_use (dev->irq)) {
struct device_node *dn = pci_device_to_OF_node(dev);
PCI_DN(dn)->eeh_mode |= EEH_MODE_IRQ_DISABLED;
disable_irq_nosync(dev->irq);
}
if (!driver->err_handler ||
!driver->err_handler->error_detected)
return;
rc = driver->err_handler->error_detected (dev, pci_channel_io_frozen);
/* A driver that needs a reset trumps all others */
if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
if (*res == PCI_ERS_RESULT_NONE) *res = rc;
}
/**
* eeh_disable_irq - disable interrupt for the recovering device
*/
static void eeh_disable_irq(struct pci_dev *dev)
{
struct device_node *dn = pci_device_to_OF_node(dev);
/* Don't disable MSI and MSI-X interrupts. They are
* effectively disabled by the DMA Stopped state
* when an EEH error occurs.
*/
if (dev->msi_enabled || dev->msix_enabled)
return;
if (!irq_in_use(dev->irq))
return;
PCI_DN(dn)->eeh_mode |= EEH_MODE_IRQ_DISABLED;
disable_irq_nosync(dev->irq);
}
static void eeh_report_failure(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
dev->error_state = pci_channel_io_perm_failure;
if (!driver)
return;
if (irq_in_use (dev->irq)) {
struct device_node *dn = pci_device_to_OF_node(dev);
PCI_DN(dn)->eeh_mode |= EEH_MODE_IRQ_DISABLED;
disable_irq_nosync(dev->irq);
}
if (!driver->err_handler)
return;
if (!driver->err_handler->error_detected)
return;
driver->err_handler->error_detected(dev, pci_channel_io_perm_failure);
}
