Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...

[linux-2.6-omap-h63xx.git] / include / linux / pci.h

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1f6c5ddaae363dd8127b40f99d8914bebb274737..a7fe4bbd7ff1f7be9eb28952bffd8802c55e6ff8 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -52,6 +52,7 @@
 #include <asm/atomic.h>
 #include <linux/device.h>
 #include <linux/io.h>
+#include <linux/irqreturn.h>
 
 /* Include the ID list */
 #include <linux/pci_ids.h>
@@ -93,6 +94,12 @@ enum {
        /* #6: expansion ROM resource */
        PCI_ROM_RESOURCE,
 
+       /* device specific resources */
+#ifdef CONFIG_PCI_IOV
+       PCI_IOV_RESOURCES,
+       PCI_IOV_RESOURCE_END = PCI_IOV_RESOURCES + PCI_SRIOV_NUM_BARS - 1,
+#endif
+
        /* resources assigned to buses behind the bridge */
 #define PCI_BRIDGE_RESOURCE_NUM 4
 
@@ -180,6 +187,7 @@ struct pci_cap_saved_state {
 
 struct pcie_link_state;
 struct pci_vpd;
+struct pci_sriov;
 
 /*
  * The pci_dev structure is used to describe PCI devices.
@@ -257,6 +265,8 @@ struct pci_dev {
        unsigned int    is_managed:1;
        unsigned int    is_pcie:1;
        unsigned int    state_saved:1;
+       unsigned int    is_physfn:1;
+       unsigned int    is_virtfn:1;
        pci_dev_flags_t dev_flags;
        atomic_t        enable_cnt;     /* pci_enable_device has been called */
 
@@ -270,6 +280,12 @@ struct pci_dev {
        struct list_head msi_list;
 #endif
        struct pci_vpd *vpd;
+#ifdef CONFIG_PCI_IOV
+       union {
+               struct pci_sriov *sriov;        /* SR-IOV capability related */
+               struct pci_dev *physfn; /* the PF this VF is associated with */
+       };
+#endif
 };
 
 extern struct pci_dev *alloc_pci_dev(void);
@@ -341,6 +357,15 @@ struct pci_bus {
 #define pci_bus_b(n)   list_entry(n, struct pci_bus, node)
 #define to_pci_bus(n)  container_of(n, struct pci_bus, dev)
 
+/*
+ * Returns true if the pci bus is root (behind host-pci bridge),
+ * false otherwise
+ */
+static inline bool pci_is_root_bus(struct pci_bus *pbus)
+{
+       return !(pbus->parent);
+}
+
 #ifdef CONFIG_PCI_MSI
 static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev)
 {
@@ -689,6 +714,7 @@ size_t pci_get_rom_size(struct pci_dev *pdev, void __iomem *rom, size_t size);
 /* Power management related routines */
 int pci_save_state(struct pci_dev *dev);
 int pci_restore_state(struct pci_dev *dev);
+int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state);
 int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
 pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
 bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
@@ -701,6 +727,9 @@ int pci_back_from_sleep(struct pci_dev *dev);
 
 /* Functions for PCI Hotplug drivers to use */
 int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
+#ifdef CONFIG_HOTPLUG
+unsigned int pci_rescan_bus(struct pci_bus *bus);
+#endif
 
 /* Vital product data routines */
 ssize_t pci_read_vpd(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
@@ -1201,5 +1230,23 @@ int pci_ext_cfg_avail(struct pci_dev *dev);
 
 void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar);
 
+#ifdef CONFIG_PCI_IOV
+extern int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn);
+extern void pci_disable_sriov(struct pci_dev *dev);
+extern irqreturn_t pci_sriov_migration(struct pci_dev *dev);
+#else
+static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn)
+{
+       return -ENODEV;
+}
+static inline void pci_disable_sriov(struct pci_dev *dev)
+{
+}
+static inline irqreturn_t pci_sriov_migration(struct pci_dev *dev)
+{
+       return IRQ_NONE;
+}
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* LINUX_PCI_H */