Technical data

SunOS 5.5 Devices smcf(7D)
NAME smcf − SMC Ether100 (9232) Ethernet device driver
SYNOPSIS #include <sys/stropts.h>
#include <sys/stream.h>
#include <sys/dlpi.h>
#include <sys/ethernet.h>
AVAILABILITY x86
DESCRIPTION The smcf Ethernet driver is a multi-threaded, loadable, clonable,STREAMS hardware
driver supporting the connectionless Data Link Provider Interface over an SMC Ether100
(9232) Fast Ethernet EISA-bus adapter. The smcf driver is dependent on
/kernel/misc/gld, a loadable kernel module that provides the smcf driver with theDLPI
and STREAMS functionality required of a LAN driver. See gld(7D) for more details about
primitives supported by the smcf driver.
The smcf driver provides basic support for the SMC Ether100 hardware. Functions
include chip initialization,frame transmission and reception, multicast and promiscuous
support, and error recovery and reporting.
MultipleSMC Ether100 controllers installedwithin the system are supported by the
driver.
APPLICATION
PROGRAMMING
INTERFACE
The cloning character-special device /dev/smcf is used to access all SMC Elite32 Ultra con-
trollers installed within the system.
The values returned by the driver in theDL_INFO_ACK primitive in response to the
DL_INFO_REQ from the user are:
The maximum SDU is 1500 (ETHERMTU).
The minimumSDU is 0. Note that the smcf driver will pad to the mandatory
60-octet minimum packet size.
The dlsap address length is ETHERADDRL +2.
The MAC type is DL_ETHER.
The SAP length value is −2, meaning the physical address component is fol-
lowed immediately by a 2-byteSAP component within the DLSAP address.
The broadcast address value is Ethernet/IEEE broadcast address
(FF:FF:FF:FF:FF:FF). The smcf driver can support up to 16 multicast addresses
on each adapter.
CONFIGURATION The driver is shipped configured to support any legal device configuration. See theSMC
Ether100 (9232) Device Configuration page in the x86 Device Configuration Guide for infor-
mation regarding hardware configuration.
modified 25 Aug 1995 7D-297