STE(4) | Device Drivers Manual | STE(4)

# NAME

`ste` — Sundance Technologies ST201 10/100 Ethernet device

# SYNOPSIS

`ste* at pci?`

# DESCRIPTION

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

- D-Link DFE-550TX
- D-Link DFE-580TX
- Encore ENL832-TX-ICNT 10/100 M PCI

The Sundance ST201 uses bus master DMA and is designed to be a 3Com EtherLink XL work-alike. 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 hostname.if(5) file.
10baseT
  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).

# DIAGNOSTICS

ste0: couldn't map ports/memory
  A fatal initialization error has occurred.
ste0: couldn't map interrupt
  A fatal initialization error has occurred.
ste0: watchdog timeout
  The device has stopped responding to the network, or there is a problem with the network connection (cable).
ste0: no memory for rx list
  The driver failed to allocate an mbuf for the receiver ring.
ste0: no memory for tx list
  The driver failed to allocate an mbuf for the transmitter ring when allocating a pad buffer or collapsing an mbuf chain into a cluster.

# SEE ALSO

arp(4), ifmedia(4), intro(4), netintro(4), pci(4), hostname.if(5), ifconfig(8)

Sundance ST201 data sheet.

# HISTORY

The `ste` device driver first appeared in FreeBSD 3.0. OpenBSD support was added in OpenBSD 2.7.

# AUTHORS

The `ste` driver was written by Bill Paul <wpaul@ee.columbia.edu> and ported to OpenBSD by Aaron Campbell <aaron@openbsd.org>.

February 17, 2022 | Debian