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

The cloning character-special device, /dev/dnet, is used to access all DEC 21040/21140 devices installed in the system.

INTERFACE

The dnet driver uses the Solaris GLD module which handles all the STREAMS and DLPI 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 a DL_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 initialized on the first attach and de-initialized (stopped) on the last detach.

The values returned by the driver in the DL_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 minimum SDU is 0 .

The DLSAP address length is 8 .

The MAC type is DL_ETHER .

The sap length value is -2 ,meaning the physical address component is followed 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 the DL_ATTACHED state, the user must send a DL_BIND_REQ to associate a particular Service Access Point (SAP) with the stream.

CONFIGURATION

The /plaform/i86pc/kernel/drv/dnet.conf file supports the following options:

bncaui

For BNC/AUI connectivity use bncaui=1, for RJ-45 use

bncaui=0. RJ-45 is the default.

fulldup

For full duplex operation use fulldup=1, for half duplex use fulldup=0. Half-duplex operation gives better results on older 10mbit networks. mode For 10mbit operation use mode=10, for 100mbit operation use mode=100. Certain 21140 based cards will operate at either speed. Use the mode property to override the 100mbit default in this case.

FILES

/dev/dnet

character special device

/plaform/i86pc/kernel/drv/dnet.conf

configuration file

SEE ALSO

dlpi(7P), streamio(7I)

Writing Device Drivers

STREAMS Programming Guide

Network Interfaces Programmer's Guide