1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * File: pcieport_if.h 4 * Purpose: PCI Express Port Bus Driver's IF Data Structure 5 * 6 * Copyright (C) 2004 Intel 7 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) 8 */ 9 10 #ifndef _PCIEPORT_IF_H_ 11 #define _PCIEPORT_IF_H_ 12 13 /* Port Type */ 14 #define PCIE_ANY_PORT (~0) 15 16 /* Service Type */ 17 #define PCIE_PORT_SERVICE_PME_SHIFT 0 /* Power Management Event */ 18 #define PCIE_PORT_SERVICE_PME (1 << PCIE_PORT_SERVICE_PME_SHIFT) 19 #define PCIE_PORT_SERVICE_AER_SHIFT 1 /* Advanced Error Reporting */ 20 #define PCIE_PORT_SERVICE_AER (1 << PCIE_PORT_SERVICE_AER_SHIFT) 21 #define PCIE_PORT_SERVICE_HP_SHIFT 2 /* Native Hotplug */ 22 #define PCIE_PORT_SERVICE_HP (1 << PCIE_PORT_SERVICE_HP_SHIFT) 23 #define PCIE_PORT_SERVICE_VC_SHIFT 3 /* Virtual Channel */ 24 #define PCIE_PORT_SERVICE_VC (1 << PCIE_PORT_SERVICE_VC_SHIFT) 25 #define PCIE_PORT_SERVICE_DPC_SHIFT 4 /* Downstream Port Containment */ 26 #define PCIE_PORT_SERVICE_DPC (1 << PCIE_PORT_SERVICE_DPC_SHIFT) 27 28 struct pcie_device { 29 int irq; /* Service IRQ/MSI/MSI-X Vector */ 30 struct pci_dev *port; /* Root/Upstream/Downstream Port */ 31 u32 service; /* Port service this device represents */ 32 void *priv_data; /* Service Private Data */ 33 struct device device; /* Generic Device Interface */ 34 }; 35 #define to_pcie_device(d) container_of(d, struct pcie_device, device) 36 set_service_data(struct pcie_device * dev,void * data)37static inline void set_service_data(struct pcie_device *dev, void *data) 38 { 39 dev->priv_data = data; 40 } 41 get_service_data(struct pcie_device * dev)42static inline void *get_service_data(struct pcie_device *dev) 43 { 44 return dev->priv_data; 45 } 46 47 struct pcie_port_service_driver { 48 const char *name; 49 int (*probe) (struct pcie_device *dev); 50 void (*remove) (struct pcie_device *dev); 51 int (*suspend) (struct pcie_device *dev); 52 int (*resume) (struct pcie_device *dev); 53 54 /* Device driver may resume normal operations */ 55 void (*error_resume)(struct pci_dev *dev); 56 57 /* Link Reset Capability - AER service driver specific */ 58 pci_ers_result_t (*reset_link) (struct pci_dev *dev); 59 60 int port_type; /* Type of the port this driver can handle */ 61 u32 service; /* Port service this device represents */ 62 63 struct device_driver driver; 64 }; 65 #define to_service_driver(d) \ 66 container_of(d, struct pcie_port_service_driver, driver) 67 68 int pcie_port_service_register(struct pcie_port_service_driver *new); 69 void pcie_port_service_unregister(struct pcie_port_service_driver *new); 70 71 #endif /* _PCIEPORT_IF_H_ */ 72