ste(4)

ste4

Sundance technologies st201 10/100 ethernet device

Usage

ste* at pci?

Overview

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.

Releases

55 releases since OpenBSD 2.7; the text changed 14 times.

  1. 2.7
  2. 2.8
  3. 2.9
  4. 3.0–3.1
  5. 3.2–3.3
  6. 3.4
  7. 3.5–3.6
  8. 3.7
  9. 3.8
  10. 3.9
  11. 4.0–4.1
  12. 4.2–5.2
  13. 5.3
  14. 5.4–7.0
  15. 7.1–8.0

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 ⟨[email protected]⟩ and ported to OpenBSD by Aaron Campbell ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.