Technical data

SunOS 5.5 Devices dnet(7D)
NAME dnet − Ethernet driver for D-Link DE-530CT, SMC EtherPower 8432BT, Znyx312, Cogent
EM960, Cogent EM100
SYNOPSIS /dev/dnet
AVAILABILITY x86
DESCRIPTION The dnet Ethernet driver is a multi-threaded, loadable, clonable,STREAMS GLD driver.
Multiple controllers installed within the system are supported by the driver. The dnet
driver functions include controller initialization,frame transmit and receive, functional
addresses, promiscuous and multicast support, and error recovery and reporting.
APPLICATION
PROGRAMMING
INTERFACE
The cloning character-special device, /dev/dnet, is used to access all DEC 21040/21140
devices installed in the system.
The dnet driver uses the SolarisGLD module which handles all theSTREAMS andDLPI
specific functions of the driver. It is a style 2 DLPI driver and therefore supports only the
connectionless mode of data transfer. Thus, a DLPI user should issue aDL_ATTACH_REQ
primitive to select the device to be used. Valid DLPI primitives are defined in
<sys/dlpi.h>. Refer to dlpi(7P) for more information.
The device is initializedon the first attach and de-initialized(stopped) on the last detach.
The values returned by the driver in theDL_INFO_ACK primitive in response to a
DL_INFO_REQ from the user are as follows:
The maximum SDU is 1500 (ETHERMTU - defined in <sys/ethernet.h>).
The minimumSDU is 0.
The DLSAP address lengthis 8.
The MAC type is DL_ETHER.
The sap length value is −2, meaning the physical address component is fol-
lowed immediately by a 2-byte sap component within the DLSAP address.
The service mode is DL_CLDLS.
No optional quality of service (QOS) support is included at present, so the
QOS fields are 0.
The provider style is DL_STYLE2.
The version is DL_VERSION_2.
The broadcast address value is the Ethernet/IEEE broadcast address
(FF:FF:FF:FF:FF:FF).
Once in theDL_ATTACHED state, the user must send a DL_BIND_REQ to associate a par-
ticular Service Access Point (SAP) with the stream.
CONFIGURATION The /plaform/i86pc/kernel/drv/dnet.conf file supports the following options:
modified 25 Aug 1995 7D-85