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 connection-
     less Data Link Provider Interface, dlpi(7P), over SMC Ether-
     Power  II  10/100  controllers.  Multiple EtherPower II con-
     trollers installed within the system are  supported  by  the
     driver. The  spwr driver provides basic support for the  SMC
     EtherPower II hardware. Functions include  chip  initializa-
     tion,   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 load-
     able  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 primi-
     tive  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  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Architecture                | x86                         |
    |_____________________________|_____________________________|

SEE ALSO

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