PCI: Export pci_iov_virtfn_bus() and pci_iov_virtfn_devfn()
On PowerNV, some resource reservation is needed for SR-IOV VFs that don't
exist at the bootup stage. To do the match between resources and VFs, the
code need to get the VF's BDF in advance.
Rename virtfn_bus() and virtfn_devfn() to pci_iov_virtfn_bus() and
pci_iov_virtfn_devfn() and export them.
[bhelgaas: changelog, make "busnr" int]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1559658..99ea948 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1669,6 +1669,9 @@
void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar);
#ifdef CONFIG_PCI_IOV
+int pci_iov_virtfn_bus(struct pci_dev *dev, int id);
+int pci_iov_virtfn_devfn(struct pci_dev *dev, int id);
+
int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn);
void pci_disable_sriov(struct pci_dev *dev);
int pci_num_vf(struct pci_dev *dev);
@@ -1677,6 +1680,14 @@
int pci_sriov_get_totalvfs(struct pci_dev *dev);
resource_size_t pci_iov_resource_size(struct pci_dev *dev, int resno);
#else
+static inline int pci_iov_virtfn_bus(struct pci_dev *dev, int id)
+{
+ return -ENOSYS;
+}
+static inline int pci_iov_virtfn_devfn(struct pci_dev *dev, int id)
+{
+ return -ENOSYS;
+}
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) { }