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SIS(4)                   BSD Kernel Interfaces 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 (Mac-
     PHYTER) / DP83816 (MacPHYTER-II) PCI Ethernet controller chips, including
     the following:

     o   @Nifty FNECHARD IFC USUP-TX
     o   MELCO LGY-PCI-TXC
     o   Netgear FA311, FA312, FA331
     o   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 multi-
     cast 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, http://www.sis.com.tw.

     NatSemi DP83815 and DP83816 datasheets, http://www.national.com.

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>.

BSD                              May 25, 2017                              BSD