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ste(4)

NAME

     ste -- Sundance Technologies ST201 Fast Ethernet device driver

SYNOPSIS

     device miibus
     device ste

DESCRIPTION

     The ste driver provides support for PCI Ethernet adapters and embedded
     controllers based on the Sundance Technologies ST201 PCI Fast Ethernet
     controller chip.

     The Sundance ST201 uses bus master DMA and is designed to be a 3Com
     Etherlink XL workalike.  It uses the same DMA descriptor structure and is
     very similar in operation, however its register layout is different.  The
     ST201 has a 64-bit multicast hash filter and a single perfect filter
     entry for the station address.  It supports both 10 and 100Mbps speeds in
     either full or half duplex using an MII transceiver.

     The ste 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 options to the /etc/rc.conf
			   file.

     10baseT/UTP	   Set 10Mbps operation.  The mediaopt option can also
			   be used to select either full-duplex or half-duplex
			   modes.

     100baseTX		   Set 100Mbps (Fast Ethernet) operation.  The
			   mediaopt option can also be used to select either
			   full-duplex or half-duplex modes.

     The ste 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).

HARDWARE

     The ste driver supports Sundance Technologies ST201 based Fast Ethernet
     adapters and embedded controllers including:

     o	 D-Link DFE-530TXS
     o	 D-Link DFE-550TX
     o	 D-Link DFE-580TX

DIAGNOSTICS

     ste%d: couldn't map ports/memory  A fatal initialization error has
     occurred.

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

     ste%d: watchdog timeout  The device has stopped responding to the net-

     ste%d: chip is in D3 power state -- setting to D0	This message applies
     only to adapters which support power management.  Some operating systems
     place the controller in low power mode when shutting down, and some PCI
     BIOSes fail to bring the chip out of this state before configuring it.
     The controller loses all of its PCI configuration in the D3 state, so if
     the BIOS does not set it back to full power mode in time, it won't be
     able to configure it correctly.  The driver tries to detect this condi-
     tion and bring the adapter back to the D0 (full power) state, but this
     may not be enough to return the driver to a fully operational condition.
     If you see this message at boot time and the driver fails to attach the
     device as a network interface, you will have to perform a second warm
     boot to have the device properly configured.

     Note that this condition only occurs when warm booting from another oper-
     ating system.  If you power down your system prior to booting FreeBSD,
     the card should be configured correctly.

SEE ALSO

     arp(4), miibus(4), netintro(4), ng_ether(4), polling(4), ifconfig(8)

     Sundance ST201 data sheet, http://www.sundanceti.com.

HISTORY

     The ste device driver first appeared in FreeBSD 3.0.

AUTHORS

     The ste driver was written by Bill Paul <wpaul@ee.columbia.edu>.

FreeBSD 5.4		       November 24, 2004		   FreeBSD 5.4

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