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authorJacob Keller <jacob.e.keller@intel.com>2013-07-31 10:53:21 +0400
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2013-07-31 05:30:34 +0400
commit59da381ee2afc806f85becf3aa64ffc952355552 (patch)
tree55a063b61da3c7adaff933956d300ea662774c9f /include/linux/pci.h
parent343e51ae6e3f64ed26d96f5560f4962529794c9f (diff)
downloadlinux-59da381ee2afc806f85becf3aa64ffc952355552.tar.xz
PCI: move enum pcie_link_width into pci.h
pcie_link_width is the enum used to define the link width values for a pcie device. This enum should not be contained solely in pci_hotplug.h, and this patch moves it next to pci_bus_speed in pci.h Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 0fd1f1582fa1..a0bf22d816cf 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -183,6 +183,19 @@ enum pci_bus_flags {
PCI_BUS_FLAGS_NO_MMRBC = (__force pci_bus_flags_t) 2,
};
+/* These values come from the PCI Express Spec */
+enum pcie_link_width {
+ PCIE_LNK_WIDTH_RESRV = 0x00,
+ PCIE_LNK_X1 = 0x01,
+ PCIE_LNK_X2 = 0x02,
+ PCIE_LNK_X4 = 0x04,
+ PCIE_LNK_X8 = 0x08,
+ PCIE_LNK_X12 = 0x0C,
+ PCIE_LNK_X16 = 0x10,
+ PCIE_LNK_X32 = 0x20,
+ PCIE_LNK_WIDTH_UNKNOWN = 0xFF,
+};
+
/* Based on the PCI Hotplug Spec, but some values are made up by us */
enum pci_bus_speed {
PCI_SPEED_33MHz = 0x00,