scsi_xedt(D4I)                                        scsi_xedt(D4I)


       NAME
             scsi_xedt - external EDT device definition structure

       SYNOPSIS
             #include <sys/sdi.h>
             #include <sys/ddi.h>

       DESCRIPTION
             The scsi_xedt structure defines the external representation of
             an entry to the extended Equipped Device Table (EDT) and
             describes a PDI device or controller.

             The xedt_cmaj and xedt_bmaj, represent the device character
             and block major numbers.

             The xedt_pdtype field identifies the SCSI target device type.

             The xedt_ctl, xedt_bus, xedt_target, and xedt_lun, fields give
             the hbano and SCSI device address for the EDT entry.

             The device driver name is returned in xedt_drvname, and the
             inquiry string is saved in the xedt_tcinquiry field.

             The xedt_memaddr, xedt_ctlorder, and xedt_ha_id fields are
             meaningful for EDT entries that describe the host adapter.

             xedt_memaddr is the ROM BIOS address used by the controller.

             xedt_ctlorder specifies the boot order of the controller, and
             is set if the HBA specified boot order in the hba_idata.

             xedt_ha_id specifies the host adaptor SCSI id.

             xedt_ordinal is a field reserved for application use and not
             used by the kernel.

             xedt_minors_per is taken from the minors_per field in the
             drv_majors structure as initialized by the target driver's
             rinit(D2I) function.

             xedt_first_minor is taken from the first_minor field in the
             drv_majors structure as initialized by the target driver's
             rinit function.





                           Copyright 1994 Novell, Inc.               Page 1

      scsi_xedt(D4I)                                        scsi_xedt(D4I)


         Return Values
            None.

      USAGE
            When sdi_ioctl is called with the B_RXEDT function, SDI fills
            in an scsi_xedt structure for all found SCSI target devices
            for the configured host adapters.  The B_EDT_CNT function of
            sdi_ioctl is used to get the number of configured entries in
            the EDT.

         Structure Members
            The scsi_xedt structure is defined as follows:

            struct scsi_xedt {
                major_t     xedt_cmaj;        /* target drv. character major number */
                major_t     xedt_bmaj;        /* target drv. block major number */
                ulong_t     xedt_minors_per;  /* number of minors for each unit */
                uchar_t     xedt_pdtype;      /* target controller SCSI device type */
                uchar_t     xedt_lun;         /* lun for this device */
                ushort_t    xedt_ctl;         /* Host Adapter controller number */
                ushort_t    xedt_target;      /* target number */
                uchar_t     xedt_bus;         /* bus number */
                char        xedt_drvname[NAME_LEN];    /* target driver ASCII name */
                uchar_t     xedt_tcinquiry[INQ_EXLEN]; /* TC vendor and product name */
                ulong_t     xedt_memaddr;     /* configured memory (ROM BIOS) addr */
                                              /*   for controller xedt_ctl. */
                uchar_t     xedt_ctlorder;    /* Controller order (if specified) by */
                                              /*   controller xedt_ctl. */
                ulong_t     xedt_ordinal;     /* ordinal numbering of all devices */
                minor_t     xedt_first_minor; /* the first minor for this device */
                uchar_t     xedt_ha_id;       /* HBA target number */
                uchar_t     xedt_fill[7];     /* future expansion */
            };

      REFERENCES
            drv_majors(D4I), owner(D4I), rinit(D2I) sdi(7), sdi_edt(D4I)












                          Copyright 1994 Novell, Inc.               Page 2