scsi_xedt(D4sdi)

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 an SDI device or controller. One such structure is defined for each Logical Unit Number.

Structure definition

The scsi_xedt structure is defined as follows:

   struct scsi_xedt {
       major_t           xedt_cmaj;
       major_t           xedt_bmaj;
       ulong_t           xedt_minors_per;
       uchar_t           xedt_pdtype;
       uchar_t           xedt_lun;
       ushort_t          xedt_ctl;
       ushort_t          xedt_target;
       uchar_t           xedt_bus;
       char              xedt_drvname[NAME_LEN];
       uchar_t           xedt_tcinquiry[INQ_EXLEN];
       ulong_t           xedt_memaddr;
       ulong_t           xedt_ctlorder;
       ulong_t           xedt_ordinal;
       minor_t           xedt_first_minor;
       uchar_t           xedt_ha_id;
       uchar_t           xedt_fill[7];
       rm_key_t          xedt_rmkey;
       struct pd_stamp   xedt_stamp
   };

Structure members

xedt_cmaj and xedt_bmaj: For DDI versions prior to version 8, the device character and block major numbers.
xedt_minors_per: For DDI versions prior to version 8, taken from the minors_per member in the drv_majors(D4sdi) structure as initialized by the target driver's rinit(D2sdi) entry point routine. Undefined for DDI 8.
xedt_pdtype: Identifies the SCSI target device type.
xedt_ctl, xedt_bus, xedt_target, and xedt_lun: Give the hbano and SCSI device address for the EDT entry.
xedt_drvname: Target driver's ASCII name is returned here.
xedt_tcinquiry: Target controller's vendor and product name is saved here.
xedt_memaddr: ROM BIOS address used by the controller. Meaningful only for EDT entries that describe the host adapter.
xedt_ctlorder: Controller order if the HBA specified boot order in the hba_idata_v5(D4sdi) structure. Meaningful only for EDT entries that describe the host adapter.
xedt_ordinal: Reserved for application use and not used by the kernel.
xedt_first_minor: For DDI versions prior to version 8, taken from the first_minor member in the drv_majors(D4sdi) structure as initialized by the target driver's rinit( ) entry point routine. Undefined for DDI 8.
xedt_ha_id: Speciries the host adaptor SCSI ID. Meaningful only for EDT entries that describe the host adapter.
fill: Reserved for future expansion.
rmkey: Resource manager key, if any. See ``Resource manager database'' in HDK Technical Reference.
xedt_stamp: Used to map the serial member of the pdinfo structure into a simulated 64-bit quantity.

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.

Applicable hardware

All.

Version applicability

sdi: 2, 3, 4

Differences between versions

The xedt_ctlorder, xedt_rmkey, and xedt_stamp members are used only for SDI version 4 and later drivers.

SDI versions prior to version 3 use the sdi_edt(D4sdi) structure instead.

References

drv_majors(D4sdi), owner(D4sdi), rinit(D2sdi) sdi, sdi_edt(D4sdi)