spwr(7D)							      Devices								  spwr(7D)

NAME

       spwr - SMC EtherPower II 10/100(9432) Ethernet device driver

SYNOPSIS

       /dev/spwr

DESCRIPTION

       The  spwr Ethernet driver is a multi-threaded, loadable, clonable, STREAMS hardware driver supporting the connectionless Data Link Provider
       Interface, dlpi(7P), over SMC EtherPower II 10/100 controllers. Multiple EtherPower II controllers installed within  the  system  are  sup-
       ported  by  the driver. The  spwr driver provides basic support for the	SMC EtherPower II hardware. Functions include chip initialization,
       frame transmit and receive, multicast support, and error recovery and reporting.

APPLICATION PROGRAMMING INTERFACE

       The cloning character-special device /dev/spwr is used to access all SMC EtherPower II devices installed within the system.

       The  spwr driver is dependent on  /kernel/misc/gld,  a loadable kernel module that provides the	spwr driver with the   DLPI  and   STREAMS
       functionality required of a LAN driver.	See  gld(7d) for more details on the primitives supported by the driver.

       The values returned by the driver in the  DL_INFO_ACK primitive in response to the  DL_INFO_REQ from the user are as follows:

	 o  The maximum SDU is	1500 ( ETHERMTU).

	 o  The minimum SDU is	0. The spwr driver will pad to the mandatory 60-octet minimum packet size.

	 o  The DLSAP address length is 8.

	 o  The MAC type is DL_ETHER.

	 o  The SAP length value is  -2, meaning the physical address component is followed immediately by a 2-byte SAP component within the DLSAP
	    address.

	 o  The broadcast address value is Ethernet/IEEE broadcast address (FF:FF:FF:FF:FF:FF).

FILES

       /dev/spwr			       Character special device.

       /kernel/drv/spwr.conf		       Driver configuration file

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Architecture		     |x86			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5), dlpi(7P), gld(7D)

SunOS 5.10							    2 Dec 1998								  spwr(7D)