MirOS Manual: sis(4)

SIS(4)                     BSD Programmer's Manual                      SIS(4)

NAME

     sis - SiS 900, SiS 7016, and NS DP83815 Fast Ethernet driver

SYNOPSIS

     sis* at pci? dev ? function ?

DESCRIPTION

     The sis driver provides support for PCI Ethernet adapters and embedded
     controllers based on the Silicon Integrated Systems SiS 900 and SiS 7016
     Fast Ethernet controller chips, as well as support for adapters based on
     the National Semiconductor DP83815 (MacPhyter) PCI Ethernet controller
     chip, including the Netgear FA311 and FA312.

     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 is also a 100Mbps Ethernet MAC with integrated PHY. The
     NatSemi chip and the SiS 900 share many of the same features and a fairly
     similar programming interface, hence both chips 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

     sis%d: couldn't map ports/memory  A fatal initialization error has oc-
     curred.

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

     sis%d: watchdog timeout  The device has stopped responding to the net-
     work, or there is a problem with the network connection (cable).

     sis%d: no memory for rx list  The driver failed to allocate an mbuf for
     the receiver ring.

     sis%d: 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.

     sis%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 condition
     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 this
     message appears at boot time and the driver fails to attach the device as
     a network interface, a second warm boot will have to be performed to have
     the device properly configured.

     Note that this condition only occurs when warm booting from another
     operating system. If the system is powered down prior to booting OpenBSD,
     the card should be configured correctly.

SEE ALSO

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

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

     NatSemi DP83815 datasheet, 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 port-
     ed to OpenBSD by
     Aaron Campbell <aaron@openbsd.org>.

MirOS BSD #10-current         September 4, 1999                              1

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