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authorPeter Oruba <peter.oruba@amd.com>2007-05-15 13:59:13 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-11 16:02:07 -0700
commitd556ad4bbe75faf17b239e151a9f003322b2e851 (patch)
tree794e4f21a9c6e76328feccf313e4d268d3ec5146 /include/linux/pci.h
parente4585da22ad04a055cbb5c863a37aa8cc02eac89 (diff)
PCI: add PCI-X/PCI-Express read control interfaces
This patch introduces an interface to read and write PCI-X / PCI-Express maximum read byte count values from PCI config space. There is a second function that returns the maximum _designed_ read byte count, which marks the maximum value for a device, since some drivers try to set MMRBC to the highest allowed value and rely on such a function. Based on patch set by Stephen Hemminger <shemminger@linux-foundation.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Peter Oruba <peter.oruba@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 086a0e5a631..ac403d74a22 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -111,7 +111,8 @@ enum pcie_reset_state {
typedef unsigned short __bitwise pci_bus_flags_t;
enum pci_bus_flags {
- PCI_BUS_FLAGS_NO_MSI = (__force pci_bus_flags_t) 1,
+ PCI_BUS_FLAGS_NO_MSI = (__force pci_bus_flags_t) 1,
+ PCI_BUS_FLAGS_NO_MMRBC = (__force pci_bus_flags_t) 2,
};
struct pci_cap_saved_state {
@@ -549,6 +550,10 @@ 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 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);
+int pcie_set_readrq(struct pci_dev *dev, int rq);
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
int __must_check pci_assign_resource(struct pci_dev *dev, int i);
int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i);