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Commit fbf501c3 authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

PCI: Clarify PCI_EXP_TYPE_PCI_BRIDGE comment 



The PCI_EXP_TYPE_PCI_BRIDGE is a *PCIe* function that is a bridge to
PCI/PCI-X.  See PCIe spec r3.0, sec 7.8.2.

Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent d2ab1fa6

include/uapi/linux/pci_regs.h

+2 −2
Original line number Diff line number Diff line
@@ -421,8 +421,8 @@ 
#define  PCI_EXP_TYPE_ROOT_PORT 0x4	/* Root Port */

#define  PCI_EXP_TYPE_UPSTREAM	0x5	/* Upstream Port */

#define  PCI_EXP_TYPE_DOWNSTREAM 0x6	/* Downstream Port */

#define  PCI_EXP_TYPE_PCI_BRIDGE 0x7	/* PCI/PCI-X Bridge */

#define  PCI_EXP_TYPE_PCIE_BRIDGE 0x8	/* PCI/PCI-X to PCIE Bridge */

#define  PCI_EXP_TYPE_PCI_BRIDGE 0x7	/* PCIe to PCI/PCI-X Bridge */

#define  PCI_EXP_TYPE_PCIE_BRIDGE 0x8	/* PCI/PCI-X to PCIe Bridge */

#define  PCI_EXP_TYPE_RC_END	0x9	/* Root Complex Integrated Endpoint */

#define  PCI_EXP_TYPE_RC_EC	0xa	/* Root Complex Event Collector */

#define PCI_EXP_FLAGS_SLOT	0x0100	/* Slot implemented */