iommu sg merging: PCI: add device_dma_parameters support

[safe/jmp/linux-2.6] / include / linux / pci.h

diff --git a/include/linux/pci.h b/include/linux/pci.h
index cee75c0..ba3a7f4 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -159,6 +159,8 @@ struct pci_dev {
                                           this if your device has broken DMA
                                           or supports 64-bit transfers.  */
 
+       struct device_dma_parameters dma_parms;
+
        pci_power_t     current_state;  /* Current operating state. In ACPI-speak,
                                           this is D0-D3, D0 being fully functional,
                                           and D3 being off. */
@@ -580,6 +582,7 @@ void pci_intx(struct pci_dev *dev, int enable);
 void pci_msi_off(struct pci_dev *dev);
 int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
 int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
+int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size);
 int pcix_get_max_mmrbc(struct pci_dev *dev);
 int pcix_get_mmrbc(struct pci_dev *dev);
 int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc);
@@ -822,6 +825,12 @@ static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
        return -EIO;
 }
 
+static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
+                                       unsigned int size)
+{
+       return -EIO;
+}
+
 static inline int pci_assign_resource(struct pci_dev *dev, int i)
 {
        return -EBUSY;