dpsc(7)                          DG/UX R4.11                         dpsc(7)


NAME
       dpsc - DPT PCI SCSI-2 Host Bus Adapter (Intel Only)

SYNOPSIS
       dpsc(parent-bus[,pci-device-num][,pci-function-num][,adapter-scsi-
       id])

DESCRIPTION
       The dpsc adapter driver allows an AViiON system to access Small
       Computer System Interface (SCSI) devices using a DPT PCI to SCSI host
       bus adapter.  The adapter links the host's PCI System bus to a SCSI
       bus.  This adapter driver supports the DPT 3224-W SCSI-2 PCI card.

       To configure a dpsc device, you must add to the DG/UX system
       configuration file one or more device name entries of the form
       described in the SYNOPSIS section above.  The parameters in a device
       name are defined as follows:

       ·   The parent-bus parameter is itself a device name, representing
           the PCI bus device to which the controller is attached (pci(0),
           for example).  There is no default value for this parameter; it
           must always be specified explicitly.

       ·   The pci-device-num parameter is a hexadecimal number in the range
           0 through 1F; it represents the PCI device number ("slot number")
           used by the device.  The default value for pci-device-num is 0.

       ·   The pci-function-num parameter is a hexadecimal number in the
           range 0 through 7; it represents the PCI function number used by
           the controller within pci-device-num.  The value for pci-device-
           num is always 0 for dpsc devices.

       ·   The adapter-scsi-id parameter is used to indicate the SCSI ID of
           the DPT SCSI adapter.  The default value is 7.

FILES
       There are no files created specifically for the dpsc device.  The
       device drivers for the devices on the SCSI bus create device nodes
       that include the dpsc device name as the parent-bus for that device.
       See the scsibus(7) man page for a list of the supported child SCSI
       devices.

EXAMPLES
       The following entry in a DG/UX configuration file configures all SCSI
       disk units on all SCSI IDs for the dpsc card in pci slot 5:

            sd(dpsc(pci(0),5),*)


       The following entry is identical to the example above, except that
       the SCSI adapter ID is 6 instead of 7:

            sd(dpsc(pci(0),5,0,6),*)


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

SEE ALSO
       pcibus(7), sd(7).


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