gpci(7)                        DG/UX R4.11MU05                       gpci(7)


NAME
       gpci - Integrated PCI host bridge (88K only)

SYNOPSIS
       gpci([bridge-num])

DESCRIPTION
       The gpci host bridge allows an AViiON system to access Peripheral
       Component Interconnect (PCI) devices.  The bridge links a host's
       system bus to a PCI bus.

       To access a PCI device via the interface, you must specify the
       appropriate gpci bridge as the parent bus device within the name of a
       PCI device to be configured (e.g., npsc or dpen).  See the pci_bus(7)
       man page for a list of the supported child PCI devices; each man page
       name in the list is the name of a PCI device driver.

       To configure gpci devices, you must add to the DG/UX system
       configuration file one or more device name entries that contain one
       of the forms described in the synopsis above.  The parameters in a
       device name have the following meanings:

       ·   The bridge-num parameter is a hexadecimal number in the range 0
           through F which distinguishes the various instances of the
           controller that are available.  The default value for bridge-num
           is 0.

EXAMPLES
       The following entry in a DG/UX configuration file configures the DEC
       PCI Ethernet controller on PCI device number 3 of the first
       Integrated PCI host bridge:

            dpen(gpci(0),3)


       The following entry in a DG/UX configuration file configures the SCSI
       disk on SCSI ID 2 of the Symbios PCI SCSI adapter which is on PCI
       device number 4 of the sixteenth Integrated PCI host bridge:

            sd(npsc(gpci(F),4),2)



       For more information about DG/UX device configuration, refer to
       "Writing a Device Driver" in Programming in the DG/UX Kernel
       Environment.

SEE ALSO
       pci_bus(7).


Licensed material--property of copyright holder(s)