include/linux/pcieport_if.h

   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_NO_IRQ                (-1)
  26 #define PCIE_PORT_INTx_MODE             0
  27 #define PCIE_PORT_MSI_MODE              1
  28 #define PCIE_PORT_MSIX_MODE             2
  29
  30 struct pcie_port_service_id {
  31         __u32 vendor, device;           /* Vendor and device ID or PCI_ANY_ID*/
  32         __u32 subvendor, subdevice;     /* Subsystem ID's or PCI_ANY_ID */
  33         __u32 class, class_mask;        /* (class,subclass,prog-if) triplet */
  34         __u32 port_type, service_type;  /* Port Entity */
  35         kernel_ulong_t driver_data;
  36 };
  37
  38 struct pcie_device {
  39         int             irq;        /* Service IRQ/MSI/MSI-X Vector */
  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
  47 static inline void set_service_data(struct pcie_device *dev, void *data)
  48 {
  49         dev->priv_data = data;
  50 }
  51
  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         void (*remove) (struct pcie_device *dev);
  61         int (*suspend) (struct pcie_device *dev, pm_message_t state);
  62         int (*resume) (struct pcie_device *dev);
  63
  64         /* Service Error Recovery Handler */
  65         struct pci_error_handlers *err_handler;
  66
  67         /* Link Reset Capability - AER service driver specific */
  68         pci_ers_result_t (*reset_link) (struct pci_dev *dev);
  69
  70         const struct pcie_port_service_id *id_table;
  71         struct device_driver driver;
  72 };
  73 #define to_service_driver(d) \
  74         container_of(d, struct pcie_port_service_driver, driver)
  75
  76 extern int pcie_port_service_register(struct pcie_port_service_driver *new);
  77 extern void pcie_port_service_unregister(struct pcie_port_service_driver *new);
  78
  79 #endif /* _PCIEPORT_IF_H_ */