Specifications

Data Structures
1.16 SCSI Connection Descriptor Table (SCDT)
Table 1–18 (Cont.) Contents of SCSI Connection Descriptor Table
Field Name Contents
SCDT$L_STS* Connection status. This field is a bit map, maintained by the port driver.
The following bits are defined:
SCDT$V_BSY Connection busy.
SCDT$V_ABORT_PND Abort pending on connection.
SCDT$V_ABORT_CMPL Abort completed on connection.
SCDT$V_ABORT_INPROG Abort is in progess.
SCDT$V_ABORT_RESEL Port was reselected while abort was in
progress.
SCDT$V_PND_RESEL Reselection interrupt pending.
SCDT$V_DSCN Connection is disconnected.
SCDT$V_TMODSCN Connection timed out.
SCDT$W_SCDT_TYPE* Type of SCDT.
SCDT$W_STATE* SCSI connection state. The SCSI port driver maintains this field, using the
following constants:
SCDT$C_CLOSED Closed
SCDT$C_OPEN Open
SCDT$C_FAIL Failed
SCDT$L_SPDT* Address of port descriptor table with which this SCDT is associated.
SCDT$L_SCSI_PORT_ID* SCSI port ID of the port to which this connection is established.
SCDT$L_SCSI_BUS_ID* SCSI device ID of the device unit to which this connection is established.
SCDT$L_SCSI_LUN* SCSI logical unit number (LUN) of the device unit to which this connection
is established.
SCDT$L_AUXSTRUC Address of auxiliary structure.
SCDT$L_SCDTLST Link for SCDT list from SPDT.
SCDT$L_SCDRP_ADDR* Address of SCDRP current on the connection.
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