1.\" Copyright (c) 1997, 1998, 1999 2.\" Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by Bill Paul. 15.\" 4. Neither the name of the author nor the names of any co-contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 23.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29.\" THE POSSIBILITY OF SUCH DAMAGE. 30.\" 31.\" $FreeBSD$ 32.\" 33.Dd September 2, 2010 34.Dt SIS 4 35.Os 36.Sh NAME 37.Nm sis 38.Nd "SiS 900, SiS 7016 and NS DP83815/DP83816 Fast Ethernet device driver" 39.Sh SYNOPSIS 40To compile this driver into the kernel, 41place the following lines in your 42kernel configuration file: 43.Bd -ragged -offset indent 44.Cd "device miibus" 45.Cd "device sis" 46.Ed 47.Pp 48Alternatively, to load the driver as a 49module at boot time, place the following line in 50.Xr loader.conf 5 : 51.Bd -literal -offset indent 52if_sis_load="YES" 53.Ed 54.Sh DESCRIPTION 55The 56.Nm 57driver provides support for PCI Ethernet adapters and embedded 58controllers based on the Silicon Integrated Systems SiS 900 59and SiS 7016 Fast Ethernet controller chips. 60.Pp 61This driver also supports 62adapters based on the National Semiconductor DP83815 (MacPhyter) and DP83816 63PCI Ethernet controller chip. 64.Pp 65The SiS 900 is a 100Mbps Ethernet MAC and MII-compliant transceiver 66in a single package. 67It uses a bus master DMA and a scatter/gather 68descriptor scheme. 69The SiS 7016 is similar to the SiS 900 except 70that it has no internal PHY, requiring instead an external transceiver 71to be attached to its MII interface. 72The SiS 900 and SiS 7016 both have a 128-bit multicast hash filter 73and a single perfect filter entry for the station address. 74.Pp 75The NS DP83815 is also a 100Mbps Ethernet MAC with integrated PHY. 76The NatSemi chip and the SiS 900 share many of the same features and 77a fairly similar programming interface, hence both chips are supported 78by the same driver. 79.Pp 80The 81.Nm 82driver supports the following media types: 83.Bl -tag -width 10baseTXUTP 84.It autoselect 85Enable autoselection of the media type and options. 86The user can manually override 87the autoselected mode by adding media options to 88.Xr rc.conf 5 . 89.It 10baseT/UTP 90Set 10Mbps operation. 91The 92.Xr ifconfig 8 93.Cm mediaopt 94option can also be used to select either 95.Sq full-duplex 96or 97.Sq half-duplex 98modes. 99.It 100baseTX 100Set 100Mbps (Fast Ethernet) operation. 101The 102.Xr ifconfig 8 103.Cm mediaopt 104option can also be used to select either 105.Sq full-duplex 106or 107.Sq half-duplex 108modes. 109.El 110.Pp 111The 112.Nm 113driver supports the following media options: 114.Bl -tag -width full-duplex 115.It full-duplex 116Force full duplex operation. 117.It half-duplex 118Force half duplex operation. 119.El 120.Pp 121For more information on configuring this device, see 122.Xr ifconfig 8 . 123.Sh HARDWARE 124The 125.Nm 126driver supports Silicon Integrated Systems SiS 900 and SiS 7016 based 127Fast Ethernet adapters and embedded controllers, as well as Fast Ethernet 128adapters based on the National Semiconductor DP83815 (MacPhyter) and DP83816 129chips. 130Supported adapters include: 131.Pp 132.Bl -bullet -compact 133.It 134@Nifty FNECHARD IFC USUP-TX 135.It 136MELCO LGY-PCI-TXC 137.It 138Netgear FA311-TX (DP83815) 139.It 140Netgear FA312-TX (DP83815) 141.It 142SiS 630, 635, and 735 motherboard chipsets 143.It 144Soekris Engineering net45xx, net48xx, lan1621, and lan1641 145.El 146.Sh SYSCTL VARIABLES 147The following variable is available as both 148.Xr sysctl 8 149variable and 150.Xr loader 8 151tunable: 152.Bl -tag -width indent 153.It Va dev.sis.%unit.manual_pad 154This variable controls how to pad short frames for DP83815/DP83816 155controllers on the specified device. 156DP83815/DP83816 controllers are known to pad 0xFF for short frames 157which is violation of RFC 1042. 158Set this variable to a non-zero value to let driver manually pad 159each short frame with zeros at the cost of extra CPU cycles. 160The default value is 0 to let hardware perform automatic padding. 161.El 162.Sh DIAGNOSTICS 163.Bl -diag 164.It "sis%d: couldn't map ports/memory" 165A fatal initialization error has occurred. 166.It "sis%d: couldn't map interrupt" 167A fatal initialization error has occurred. 168.It "sis%d: watchdog timeout" 169The device has stopped responding to the network, or there is a problem with 170the network connection (e.g.\& a cable fault). 171.It "sis%d: no memory for rx list" 172The driver failed to allocate an mbuf for the receiver ring. 173.It "sis%d: no memory for tx list" 174The driver failed to allocate an mbuf for the transmitter ring when 175allocating a pad buffer or collapsing an mbuf chain into a cluster. 176.It "sis%d: chip is in D3 power state -- setting to D0" 177This message applies only to adapters which support power 178management. 179Some operating systems place the controller in low power 180mode when shutting down, and some PCI BIOSes fail to bring the chip 181out of this state before configuring it. 182The controller loses all of 183its PCI configuration in the D3 state, so if the BIOS does not set 184it back to full power mode in time, it will not be able to configure it 185correctly. 186The driver tries to detect this condition and bring 187the adapter back to the D0 (full power) state, but this may not be 188enough to return the driver to a fully operational condition. 189If 190you see this message at boot time and the driver fails to attach 191the device as a network interface, you will have to perform a 192warm boot to have the device properly configured. 193.Pp 194Note that this condition only occurs when warm booting from another 195operating system. 196If you power down your system prior to booting 197.Fx , 198the card should be configured correctly. 199.El 200.Sh SEE ALSO 201.Xr altq 4 , 202.Xr arp 4 , 203.Xr miibus 4 , 204.Xr netintro 4 , 205.Xr ng_ether 4 , 206.Xr polling 4 , 207.Xr vlan 4 , 208.Xr ifconfig 8 209.Rs 210.%T SiS 900 and SiS 7016 datasheets 211.%U http://www.sis.com.tw 212.Re 213.Rs 214.%T NatSemi DP83815 datasheet 215.%U http://www.national.com 216.Re 217.Sh HISTORY 218The 219.Nm 220device driver first appeared in 221.Fx 3.0 . 222.Sh AUTHORS 223The 224.Nm 225driver was written by 226.An Bill Paul Aq Mt wpaul@ee.columbia.edu . 227