SIS(4) OpenBSD Programmer's Manual SIS(4)NAMEsis - 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 and SiS 7016
Fast Ethernet controller chips, as well as support for adapters based on
National Semiconductor DP83815 (MacPHYTER) and DP83816 (MacPHYTER-II) PCI
Ethernet controller chips, including the Netgear FA311, FA312 and FA331,
and the embedded controllers on Soekris net4xxx single-board computers
and lan16x1 multi-port PCI Ethernet adapters.
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
sis%d: couldn't map ports/memory A fatal initialization error has
occurred.
sis%d: couldn't map interrupt A fatal initialization error has occurred.
sis%d: watchdog timeout The device has stopped responding to the
network, 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 ALSOarp(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>.
OpenBSD 4.9 May 31, 2007 OpenBSD 4.9
