DLPI Programmer's Guide

58 Chapter 2
DLPI Primitives
Local Management Primitives
DL_CHAR
character synchronous communication line.
DL_CTCA
channel-to-channel adapter.
DL_FDDI
Fiber Distributed Data Interface.
DL_OTHER
any other medium not listed above.
NOTE dl_mac_type is not valid until after a dl_attach_req has been issued.
dl_reserved
reserved field whose value must be set to zero.
dl_current_state
state of the DLPI interface for the stream when the DLS provider
issued this acknowledgment.
dl_sap_length
current length of the SAP component of the DLSAP address. It may
have a negative, zero or positive. A positive value indicates the
ordering of the SAP and PHSYCAL component within the DLSAP
address as SAP component followed by PHYSICAL component. A
negative value indicates PHYSICAL followed by the SAP. A zero
value indicates that no SAP has yet been bound. The absolute value
of the dl_sap_length provides the length of the SAP component within
the DLSAP address.
dl_service_mode
if returned before the DL_BIND_REQ is processed, this conveys
which services modes the DLS provider can support. It contains a
bit-mask specifying on or more than one of the following values:
DL_CODLS
connection-oriented data link service.
DL_CLDLS