ia64/linux-2.6.18-xen.hg

view drivers/pci/pci.h @ 825:002e044dc979

PCI: centralize device setup code

Move the device setup stuff into pci_setup_device() which will be used
to setup the Virtual Function later.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Mar 18 11:39:56 2009 +0000 (2009-03-18)
parents 7544e16acfe9
children 64c8f9fbf609
line source
1 /* Functions internal to the PCI core code */
3 extern int pci_uevent(struct device *dev, char **envp, int num_envp,
4 char *buffer, int buffer_size);
5 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
6 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
7 extern void pci_cleanup_rom(struct pci_dev *dev);
8 extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
9 resource_size_t size, resource_size_t align,
10 resource_size_t min, unsigned int type_mask,
11 void (*alignf)(void *, struct resource *,
12 resource_size_t, resource_size_t),
13 void *alignf_data);
14 /* Firmware callbacks */
15 extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
16 extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
18 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
19 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
20 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
21 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
22 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
23 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
25 /* PCI /proc functions */
26 #ifdef CONFIG_PROC_FS
27 extern int pci_proc_attach_device(struct pci_dev *dev);
28 extern int pci_proc_detach_device(struct pci_dev *dev);
29 extern int pci_proc_detach_bus(struct pci_bus *bus);
30 #else
31 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
32 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
33 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
34 #endif
36 /* Functions for PCI Hotplug drivers to use */
37 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
38 extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
40 extern void pci_remove_legacy_files(struct pci_bus *bus);
42 /* Lock for read/write access to pci device and bus lists */
43 extern struct rw_semaphore pci_bus_sem;
45 #ifdef CONFIG_X86_IO_APIC
46 extern int pci_msi_quirk;
47 #else
48 #define pci_msi_quirk 0
49 #endif
50 extern unsigned int pci_pm_d3_delay;
51 #ifdef CONFIG_PCI_MSI
52 void disable_msi_mode(struct pci_dev *dev, int pos, int type);
53 void pci_no_msi(void);
54 #else
55 static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { }
56 static inline void pci_no_msi(void) { }
57 #endif
58 #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
59 int pci_save_msi_state(struct pci_dev *dev);
60 int pci_save_msix_state(struct pci_dev *dev);
61 void pci_restore_msi_state(struct pci_dev *dev);
62 void pci_restore_msix_state(struct pci_dev *dev);
63 #else
64 static inline int pci_save_msi_state(struct pci_dev *dev) { return 0; }
65 static inline int pci_save_msix_state(struct pci_dev *dev) { return 0; }
66 static inline void pci_restore_msi_state(struct pci_dev *dev) {}
67 static inline void pci_restore_msix_state(struct pci_dev *dev) {}
68 #endif
69 static inline int pci_no_d1d2(struct pci_dev *dev)
70 {
71 unsigned int parent_dstates = 0;
73 if (dev->bus->self)
74 parent_dstates = dev->bus->self->no_d1d2;
75 return (dev->no_d1d2 || parent_dstates);
77 }
78 extern int pcie_mch_quirk;
79 extern struct device_attribute pci_dev_attrs[];
80 extern struct class_device_attribute class_device_attr_cpuaffinity;
82 /**
83 * pci_match_one_device - Tell if a PCI device structure has a matching
84 * PCI device id structure
85 * @id: single PCI device id structure to match
86 * @dev: the PCI device structure to match against
87 *
88 * Returns the matching pci_device_id structure or %NULL if there is no match.
89 */
90 static inline const struct pci_device_id *
91 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
92 {
93 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
94 (id->device == PCI_ANY_ID || id->device == dev->device) &&
95 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
96 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
97 !((id->class ^ dev->class) & id->class_mask))
98 return id;
99 return NULL;
100 }
102 #ifdef CONFIG_PCI_REASSIGN
103 extern int pci_is_reassigndev(struct pci_dev *dev);
104 extern void pci_disable_bridge_window(struct pci_dev *dev);
105 #else
106 #define pci_is_reassigndev(dev) 0
107 #endif
109 #ifdef CONFIG_PCI_GUESTDEV
110 int pci_is_guestdev_to_reassign(struct pci_dev *dev);
111 #endif /* CONFIG_PCI_GUESTDEV */
113 enum pci_bar_type {
114 pci_bar_unknown, /* Standard PCI BAR probe */
115 pci_bar_io, /* An io port BAR */
116 pci_bar_mem32, /* A 32-bit memory BAR */
117 pci_bar_mem64, /* A 64-bit memory BAR */
118 };
120 extern int pci_setup_device(struct pci_dev *dev);
121 extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
122 struct resource *res, unsigned int reg);
123 extern int pci_resource_bar(struct pci_dev *dev, int resno,
124 enum pci_bar_type *type);
125 extern void pci_enable_ari(struct pci_dev *dev);
126 /**
127 * pci_ari_enabled - query ARI forwarding status
128 * @bus: the PCI bus
129 *
130 * Returns 1 if ARI forwarding is enabled, or 0 if not enabled;
131 */
132 static inline int pci_ari_enabled(struct pci_bus *bus)
133 {
134 return bus->self && bus->self->ari_enabled;
135 }
137 /* Single Root I/O Virtualization */
138 struct pci_sriov {
139 int pos; /* capability position */
140 int nres; /* number of resources */
141 u32 cap; /* SR-IOV Capabilities */
142 u16 ctrl; /* SR-IOV Control */
143 u16 total; /* total VFs associated with the PF */
144 u16 offset; /* first VF Routing ID offset */
145 u16 stride; /* following VF stride */
146 u32 pgsz; /* page size for BAR alignment */
147 u8 link; /* Function Dependency Link */
148 struct pci_dev *dev; /* lowest numbered PF */
149 struct pci_dev *self; /* this PF */
150 struct mutex lock; /* lock for VF bus */
151 };
153 #ifdef CONFIG_PCI_IOV
154 extern int pci_iov_init(struct pci_dev *dev);
155 extern void pci_iov_release(struct pci_dev *dev);
156 extern int pci_iov_resource_bar(struct pci_dev *dev, int resno,
157 enum pci_bar_type *type);
158 extern void pci_restore_iov_state(struct pci_dev *dev);
159 extern int pci_iov_bus_range(struct pci_bus *bus);
160 #else
161 static inline int pci_iov_init(struct pci_dev *dev)
162 {
163 return -ENODEV;
164 }
165 static inline void pci_iov_release(struct pci_dev *dev)
167 {
168 }
169 static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno,
170 enum pci_bar_type *type)
171 {
172 return 0;
173 }
174 static inline void pci_restore_iov_state(struct pci_dev *dev)
175 {
176 }
177 static inline int pci_iov_bus_range(struct pci_bus *bus)
178 {
179 return 0;
180 }
181 #endif /* CONFIG_PCI_IOV */