+/* ---------------------------------------------------------------- */
+/** PCI Error Recovery System (PCI-ERS). If a PCI device driver provides
+ * a set fof callbacks in struct pci_error_handlers, then that device driver
+ * will be notified of PCI bus errors, and will be driven to recovery
+ * when an error occurs.
+ */
+
+typedef unsigned int __bitwise pci_ers_result_t;
+
+enum pci_ers_result {
+ /* no result/none/not supported in device driver */
+ PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1,
+
+ /* Device driver can recover without slot reset */
+ PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2,
+
+ /* Device driver wants slot to be reset. */
+ PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3,
+
+ /* Device has completely failed, is unrecoverable */
+ PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4,
+
+ /* Device driver is fully recovered and operational */
+ PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5,
+};
+
+/* PCI bus error event callbacks */
+struct pci_error_handlers
+{
+ /* PCI bus error detected on this device */
+ pci_ers_result_t (*error_detected)(struct pci_dev *dev,
+ enum pci_channel_state error);
+
+ /* MMIO has been re-enabled, but not DMA */
+ pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev);
+
+ /* PCI Express link has been reset */
+ pci_ers_result_t (*link_reset)(struct pci_dev *dev);
+
+ /* PCI slot has been reset */
+ pci_ers_result_t (*slot_reset)(struct pci_dev *dev);
+
+ /* Device driver may resume normal operations */
+ void (*resume)(struct pci_dev *dev);
+};
+
+/* ---------------------------------------------------------------- */
+