wd7000(7)                                                  wd7000(7)


       NAME
             wd7000 - WD7000 FASST2 host adapter subsystem

       DESCRIPTION
             The WD7000 FASST2 SCSI host adapter subsystem enables SCSI
             target drivers (such as sd01, st01, and so on) to communicate
             on the SCSI bus with target controllers and logical units.
             This driver implements the Portable Device Interface (PDI) for
             such PDI target drivers.

             It is also possible to access this subsystem directly using
             the pass-through driver interface.  This allows you to issue
             sb control blocks directly to the target controller.  To find
             the appropriate device to use, while any device is being
             accessed through the target driver for example sd01), use the
             B_GETDEV ioctl to get the major and minor numbers of the
             pass-though node.  This node may be created and opened for
             pass-through use (SDI_SEND ioctl).

          ioctl Calls
             The following ioctl(2) commands are supported by this driver:

             SDI_SEND
                   Sends a pass-through command (SCSI control block) to a
                   target controller, bypassing the associated target
                   driver.

             SDI_BRESET
                   Resets the SCSI bus.

             B_REDT
                   Reads the extended Equipped Device Table (EDT) data
                   structure that is stored in the SCSI driver's internal
                   data structure.

             B_HA_CNT
                   Gets the value of the number of host adapters for which
                   the SCSI driver is configured.

             HA_VER
                   Determines the Driver Interface Version supported by the
                   driver.  It returns the structure ver_no, defined in
                   /usr/include/sys/sdi.h.





                           Copyright 1994 Novell, Inc.               Page 1

      wd7000(7)                                                  wd7000(7)


            B_GETTYPE
                  Returns the bus name (for example, scsi) and device
                  driver name of a specific device.

         Files
            /usr/include/sys/wd7000.h
            /usr/include/sys/scsi.h
            /usr/include/sys/sdi.h
            /usr/include/sys/sdi_edt.h
            /etc/conf/pack.d/wd7000/space.c

      REFERENCES
            adsc(7), dpt(7), ioctl(2), mcis(7), sc01(7), sd01(7), st01(7),
            sw01(7)


































                          Copyright 1994 Novell, Inc.               Page 2