SIS(4) | Device Drivers Manual | SIS(4)

# NAME

`sis` — SiS 900, SiS 7016, and NS DP83815/6 10/100 Ethernet device

# SYNOPSIS

`sis* at pci?`
`icsphy* at mii?`
`nsphyter* at mii?`
`rlphy* at mii?`

# DESCRIPTION

The `sis` driver provides support for PCI Ethernet adapters and embedded controllers based on the Silicon Integrated Systems SiS 900 / SiS 7016 Fast Ethernet controller chips, and National Semiconductor DP83815 (MacPHYTER) / DP83816 (MacPHYTER-II) PCI Ethernet controller chips, including the following:

- @Nifty FNECHARD IFC USUP-TX
- MELCO LGY-PCI-TXC
- Netgear FA311, FA312, FA331
- Soekris Engineering lan1621, lan1641

The SiS 900 is a 100Mbps Ethernet MAC and MII-compliant transceiver in a single package. It uses a bus master DMA and a scatter/gather descriptor scheme. The SiS 7016 is similar to the SiS 900 except that it has no internal PHY, requiring instead an external transceiver to be attached to its MII interface. The SiS 900 and SiS 7016 both have a 128-bit multicast hash filter and a single perfect filter entry for the station address.

The NS DP83815 and DP83816 are also 100Mbps Ethernet MACs with integrated PHY. The NatSemi chips and the SiS chips share many of the same features and a fairly similar programming interface, and hence are supported by the same driver.

The `sis` 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 `sis` 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

sis0: couldn't map ports/memory
  A fatal initialization error has occurred.
sis0: couldn't map interrupt
  A fatal initialization error has occurred.
sis0: watchdog timeout
  The device has stopped responding to the network, or there is a problem with the network connection (cable).
sis0: no memory for rx list
  The driver failed to allocate an mbuf for the receiver ring.
sis0: 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), icsphy(4), ifmedia(4), intro(4), netintro(4), nsphyter(4), pci(4), rlphy(4), hostname.if(5), ifconfig(8)

SiS 900 and SiS 7016 datasheets, https://www.sis.com.

NatSemi DP83815 and DP83816 datasheets.

# HISTORY

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

# AUTHORS

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

February 18, 2022 | Debian