11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * File: portdrv.h 31da177e4SLinus Torvalds * Purpose: PCI Express Port Bus Driver's Internal Data Structures 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (C) 2004 Intel 61da177e4SLinus Torvalds * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #ifndef _PORTDRV_H_ 101da177e4SLinus Torvalds #define _PORTDRV_H_ 111da177e4SLinus Torvalds 123ec6a8d0SAndrew Morton #include <linux/compiler.h> 133ec6a8d0SAndrew Morton 141da177e4SLinus Torvalds #define PCIE_PORT_DEVICE_MAXSERVICES 4 15b43d4513SRafael J. Wysocki /* 16f9f45604SKenji Kaneshige * According to the PCI Express Base Specification 2.0, the indices of 17f9f45604SKenji Kaneshige * the MSI-X table entires used by port services must not exceed 31 18b43d4513SRafael J. Wysocki */ 19b43d4513SRafael J. Wysocki #define PCIE_PORT_MAX_MSIX_ENTRIES 32 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds #define get_descriptor_id(type, service) (((type - 4) << 4) | service) 221da177e4SLinus Torvalds 2379dd9182SRafael J. Wysocki extern bool pcie_ports_disabled; 2479dd9182SRafael J. Wysocki 251da177e4SLinus Torvalds extern struct bus_type pcie_port_bus_type; 261da177e4SLinus Torvalds extern int pcie_port_device_register(struct pci_dev *dev); 271da177e4SLinus Torvalds #ifdef CONFIG_PM 283a3c244cSRafael J. Wysocki extern int pcie_port_device_suspend(struct device *dev); 293a3c244cSRafael J. Wysocki extern int pcie_port_device_resume(struct device *dev); 301da177e4SLinus Torvalds #endif 311da177e4SLinus Torvalds extern void pcie_port_device_remove(struct pci_dev *dev); 323ec6a8d0SAndrew Morton extern int __must_check pcie_port_bus_register(void); 331da177e4SLinus Torvalds extern void pcie_port_bus_unregister(void); 341da177e4SLinus Torvalds 35c39fae14SRafael J. Wysocki #ifdef CONFIG_PCIE_PME 36c39fae14SRafael J. Wysocki extern bool pcie_pme_msi_disabled; 37c39fae14SRafael J. Wysocki 38c39fae14SRafael J. Wysocki static inline void pcie_pme_disable_msi(void) 39c39fae14SRafael J. Wysocki { 40c39fae14SRafael J. Wysocki pcie_pme_msi_disabled = true; 41c39fae14SRafael J. Wysocki } 42c39fae14SRafael J. Wysocki 43c39fae14SRafael J. Wysocki static inline bool pcie_pme_no_msi(void) 44c39fae14SRafael J. Wysocki { 45c39fae14SRafael J. Wysocki return pcie_pme_msi_disabled; 46c39fae14SRafael J. Wysocki } 47c39fae14SRafael J. Wysocki #else /* !CONFIG_PCIE_PME */ 48c39fae14SRafael J. Wysocki static inline void pcie_pme_disable_msi(void) {} 49c39fae14SRafael J. Wysocki static inline bool pcie_pme_no_msi(void) { return false; } 50c39fae14SRafael J. Wysocki #endif /* !CONFIG_PCIE_PME */ 51c39fae14SRafael J. Wysocki 521da177e4SLinus Torvalds #endif /* _PORTDRV_H_ */ 53