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authorYinghai <yinghai.lu@oracle.com>2010-04-09 01:07:55 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-04-09 17:00:00 +0100
commitdda565492776b7dff5f8507298d868745e734aab (patch)
tree0e93c6d3cad304b860fa8b8715a3dbd03832b2ae /include/linux/pci.h
parent680a7524622356f5476e8fad2fe32b2b68b432c0 (diff)
intel-iommu: use physfn to search drhd for VF
When virtfn is used, we should use physfn to find correct drhd -v2: add pci_physfn() Suggested by Roland Dreier <rdreier@cisco.com> do can remove ifdef in dmar.c -v3: Chris pointed out we need that for dma_find_matched_atsr_unit too also change dmar_pci_device_match() static Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Roland Dreier <rdreier@cisco.com> Acked-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index a788fa12ff3..a327322a33a 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -334,6 +334,16 @@ struct pci_dev {
#endif
};
+static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
+{
+#ifdef CONFIG_PCI_IOV
+ if (dev->is_virtfn)
+ dev = dev->physfn;
+#endif
+
+ return dev;
+}
+
extern struct pci_dev *alloc_pci_dev(void);
#define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)