1 /*
2 * File: pcieport_if.h
3 * Purpose: PCI Express Port Bus Driver's IF Data Structure
4 *
5 * Copyright (C) 2004 Intel
6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
7 */
8
9 #ifndef _PCIEPORT_IF_H_
10 #define _PCIEPORT_IF_H_
11
12 /* Port Type */
13 #define PCIE_RC_PORT 4 /* Root port of RC */
14 #define PCIE_SW_UPSTREAM_PORT 5 /* Upstream port of Switch */
15 #define PCIE_SW_DOWNSTREAM_PORT 6 /* Downstream port of Switch */
16 #define PCIE_ANY_PORT 7
17
18 /* Service Type */
19 #define PCIE_PORT_SERVICE_PME 1 /* Power Management Event */
20 #define PCIE_PORT_SERVICE_AER 2 /* Advanced Error Reporting */
21 #define PCIE_PORT_SERVICE_HP 4 /* Native Hotplug */
22 #define PCIE_PORT_SERVICE_VC 8 /* Virtual Channel */
23
24 /* Root/Upstream/Downstream Port's Interrupt Mode */
25 #define PCIE_PORT_INTx_MODE 0
26 #define PCIE_PORT_MSI_MODE 1
27 #define PCIE_PORT_MSIX_MODE 2
28
29 struct pcie_port_service_id {
30 __u32 vendor, device; /* Vendor and device ID or PCI_ANY_ID*/
31 __u32 subvendor, subdevice; /* Subsystem ID's or PCI_ANY_ID */
32 __u32 class, class_mask; /* (class,subclass,prog-if) triplet */
33 __u32 port_type, service_type; /* Port Entity */
34 kernel_ulong_t driver_data;
35 };
36
37 struct pcie_device {
38 int irq; /* Service IRQ/MSI/MSI-X Vector */
39 int interrupt_mode; /* [0:INTx | 1:MSI | 2:MSI-X] */
40 struct pcie_port_service_id id; /* Service ID */
41 struct pci_dev *port; /* Root/Upstream/Downstream Port */
42 void *priv_data; /* Service Private Data */
43 struct device device; /* Generic Device Interface */
44 };
45 #define to_pcie_device(d) container_of(d, struct pcie_device, device)
46
set_service_data(struct pcie_device * dev,void * data)47 static inline void set_service_data(struct pcie_device *dev, void *data)
48 {
49 dev->priv_data = data;
50 }
51
get_service_data(struct pcie_device * dev)52 static inline void* get_service_data(struct pcie_device *dev)
53 {
54 return dev->priv_data;
55 }
56
57 struct pcie_port_service_driver {
58 const char *name;
59 int (*probe) (struct pcie_device *dev,
60 const struct pcie_port_service_id *id);
61 void (*remove) (struct pcie_device *dev);
62 int (*suspend) (struct pcie_device *dev, pm_message_t state);
63 int (*resume) (struct pcie_device *dev);
64
65 /* Service Error Recovery Handler */
66 struct pci_error_handlers *err_handler;
67
68 /* Link Reset Capability - AER service driver specific */
69 pci_ers_result_t (*reset_link) (struct pci_dev *dev);
70
71 const struct pcie_port_service_id *id_table;
72 struct device_driver driver;
73 };
74 #define to_service_driver(d) \
75 container_of(d, struct pcie_port_service_driver, driver)
76
77 extern int pcie_port_service_register(struct pcie_port_service_driver *new);
78 extern void pcie_port_service_unregister(struct pcie_port_service_driver *new);
79
80 #endif /* _PCIEPORT_IF_H_ */
81