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XBRIDGE(4)             OpenBSD Programmer's Manual (SGI)            XBRIDGE(4)

     xbridge - XIO-PCI bridge

     xbridge* at xbow?
     xbpci* at xbridge?
     pci* at xbpci?

     The xbridge driver provides support for the XIO-PCI and XIO-PCI-X bridges
     commonly found on Octane and Origin family systems.

     All these systems feature at least one xbridge device to which the on-
     board devices are connected.

     xbridge devices support up to 8 different PCI devices, or two distinct
     buses of 4 PCI-X devices.  Each PCI or PCI-X device is attached to a
     logical xbpci device.

     intro(4), pci(4), xbow(4)

     The xbridge driver first appeared in OpenBSD 4.4.  Support for the PCI-X
     bridges was added in OpenBSD 4.7.

OpenBSD 5.0                    October 26, 2009                    OpenBSD 5.0