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LGE(4)			     Kernel Interfaces Manual			  LGE(4)

NAME
     lge -- Level 1 LXT1001 NetCellerator PCI gigabit ethernet adapter driver

SYNOPSIS
     device miibus
     device lge

DESCRIPTION
     The  lge  driver  provides  support  for  various NICs based on the Level 1
     LXT1001 NetCellerator gigabit ethernet controller chip, including the  fol-
     lowing:

     *	 SMC TigerCard 1000 (SMC9462SX)
     *	 D-Link DGE-500SX

     These  NICs  are  capable	of  1000mbps speeds over fiber optic cable.  The
     LXT1001 also supports a GMII port for use	with  10/100/1000  copper  PHYs,
     however  there  aren't  currently any NICs on the market that use this fea-
     ture.

     The LXT1001 supports TCP/IP checksum offload  for	receive  and  VLAN-based
     filtering	as  well  as  a  64-bit multicast hash filter.	It also supports
     jumbo frames, which can be configured via the interface MTU  setting.   Se-
     lecting  an MTU larger than 1500 bytes with the ifconfig(8) utility config-
     ures the adapter to receive and transmit jumbo frames.  Using jumbo  frames
     can  greatly  improve performance for certain tasks, such as file transfers
     and data streaming.

     The lge driver supports the following media types:

     autoselect  Enable autoselection of the media type and options.   The  user
		 can manually override the autoselected mode by adding media op-
		 tions to rc.conf(5).

     1000baseSX  Set   1000baseSX   operation  over  fiber  optic  cable.   Both
		 full-duplex and half-duplex modes are supported.

     The lge driver supports the following media options:

     full-duplex  Force full duplex operation.

     half-duplex  Force half duplex operation.

     For more information on configuring this device, see ifconfig(8).

DIAGNOSTICS
     lge%d: couldn't map memory  A fatal initialization error has occurred.

     lge%d: couldn't map ports	A fatal initialization error has occurred.

     lge%d: couldn't map interrupt  A fatal initialization error has occurred.

     lge%d: no memory for softc struct!  The driver failed  to	allocate  memory
     for per-device instance information during initialization.

     lge%d:  failed  to  enable memory mapping!  The driver failed to initialize
     PCI shared memory mapping.  This might happen if the card is not in a  bus-
     master slot.

     lge%d:  no  memory for jumbo buffers!  The driver failed to allocate memory
     for jumbo frames during initialization.

     lge%d: watchdog timeout  The device has stopped responding to the	network,
     or there is a problem with the network connection (cable).

SEE ALSO
     arp(4), netintro(4), ng_ether(4), ifconfig(8)

     Level	     1		 LXT1001	   Programming		 Manual,
     http://www.FreeBSD.org/~wpaul/Level1/LXT1001SRM.pdf.

HISTORY
     The lge device driver first appeared in FreeBSD 4.4.

AUTHORS
     The lge driver was written by Bill Paul <william.paul@windriver.com>.

FreeBSD 4.6			  May 30, 2001				  LGE(4)
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