tjh.dev
Linux kernel mirror (for testing)
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kernel
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linux
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_ANY_PORT (~0)
14
15/* Service Type */
16#define PCIE_PORT_SERVICE_PME_SHIFT 0 /* Power Management Event */
17#define PCIE_PORT_SERVICE_PME (1 << PCIE_PORT_SERVICE_PME_SHIFT)
18#define PCIE_PORT_SERVICE_AER_SHIFT 1 /* Advanced Error Reporting */
19#define PCIE_PORT_SERVICE_AER (1 << PCIE_PORT_SERVICE_AER_SHIFT)
20#define PCIE_PORT_SERVICE_HP_SHIFT 2 /* Native Hotplug */
21#define PCIE_PORT_SERVICE_HP (1 << PCIE_PORT_SERVICE_HP_SHIFT)
22#define PCIE_PORT_SERVICE_VC_SHIFT 3 /* Virtual Channel */
23#define PCIE_PORT_SERVICE_VC (1 << PCIE_PORT_SERVICE_VC_SHIFT)
24#define PCIE_PORT_SERVICE_DPC_SHIFT 4 /* Downstream Port Containment */
25#define PCIE_PORT_SERVICE_DPC (1 << PCIE_PORT_SERVICE_DPC_SHIFT)
26
27struct pcie_device {
28 int irq; /* Service IRQ/MSI/MSI-X Vector */
29 struct pci_dev *port; /* Root/Upstream/Downstream Port */
30 u32 service; /* Port service this device represents */
31 void *priv_data; /* Service Private Data */
32 struct device device; /* Generic Device Interface */
33};
34#define to_pcie_device(d) container_of(d, struct pcie_device, device)
35
36static inline void set_service_data(struct pcie_device *dev, void *data)
37{
38 dev->priv_data = data;
39}
40
41static inline void* get_service_data(struct pcie_device *dev)
42{
43 return dev->priv_data;
44}
45
46struct pcie_port_service_driver {
47 const char *name;
48 int (*probe) (struct pcie_device *dev);
49 void (*remove) (struct pcie_device *dev);
50 int (*suspend) (struct pcie_device *dev);
51 int (*resume) (struct pcie_device *dev);
52
53 /* Service Error Recovery Handler */
54 const struct pci_error_handlers *err_handler;
55
56 /* Link Reset Capability - AER service driver specific */
57 pci_ers_result_t (*reset_link) (struct pci_dev *dev);
58
59 int port_type; /* Type of the port this driver can handle */
60 u32 service; /* Port service this device represents */
61
62 struct device_driver driver;
63};
64#define to_service_driver(d) \
65 container_of(d, struct pcie_port_service_driver, driver)
66
67int pcie_port_service_register(struct pcie_port_service_driver *new);
68void pcie_port_service_unregister(struct pcie_port_service_driver *new);
69
70#endif /* _PCIEPORT_IF_H_ */