1.\" Copyright (c) 1997, 1998, 1999 2.\" Bill Paul <wpaul@ctr.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: src/share/man/man4/sk.4,v 1.8.2.6 2001/08/17 13:08:39 ru Exp $ 32.\" 33.Dd November 2, 2006 34.Dt SK 4 35.Os 36.Sh NAME 37.Nm sk 38.Nd "SysKonnect XMAC II and Marvell Yukon based Gigabit Ethernet device" 39.Sh SYNOPSIS 40.Cd "device miibus" 41.Cd "device sk" 42.Pp 43Alternatively, to load the driver as a module at boot time, place the 44following line in 45.Pa /boot/loader.conf : 46.Bd -literal -offset indent 47if_sk_load="YES" 48.Ed 49.Sh DESCRIPTION 50The 51.Nm 52driver provides support for SysKonnect based Gigabit Ethernet adapters and 53Marvell based Gigabit Ethernet adapters. 54.Pp 55The SysKonnect based adapters consist of two main components: 56the XaQti Corp. XMAC II gigabit MAC and 57the SysKonnect GEnesis controller ASIC. 58The XMAC provides the gigabit MAC and PHY support 59while the GEnesis provides an interface to the PCI bus, 60DMA support, packet buffering and arbitration. 61The GEnesis can control up to two XMACs simultaneously, 62allowing dual-port NIC configurations. 63.Pp 64The Marvell based adapters are a single integrated circuit, 65but are still presented as a separate MAC and controller ASIC. 66.Pp 67The 68.Nm 69driver configures dual port SysKonnect adapters such that each XMAC 70is treated as a separate logical network interface. 71Both ports can 72operate independently of each other and can be connected to separate 73networks. 74The SysKonnect driver software currently only uses the 75second port on dual port adapters for failover purposes: if the link 76on the primary port fails, the SysKonnect driver will automatically 77switch traffic onto the second port. 78.Pp 79The XaQti XMAC II supports full and half duplex operation with 80autonegotiation. 81The XMAC also supports unlimited frame sizes. 82Support for jumbo frames is provided via the interface MTU setting. 83Selecting an MTU larger than 1500 bytes with the 84.Xr ifconfig 8 85utility configures the adapter to receive and transmit jumbo frames. 86Using jumbo frames can greatly improve performance for certain tasks, 87such as file transfers and data streaming. 88.Pp 89The 90.Nm 91driver supports the following media types: 92.Bl -tag -width xxxxxxxxxxxxxxxxxxxx 93.It autoselect 94Enable autoselection of the media type and options. 95The user can manually override 96the autoselected mode by adding media options to the 97.Pa /etc/rc.conf 98file. 99.It 1000baseT 100Set 1000baseT operation over twisted pair. 101This is only available 102for SK-982x series adapters with 1000baseT ports. 103Both 104.Ar full-duplex 105and 106.Ar half-duplex 107modes are supported. 108.It 1000baseSX 109Set 1000Mbps (gigabit ethernet) operation. 110Both 111.Ar full-duplex 112and 113.Ar half-duplex 114modes are supported. 115.El 116.Pp 117The 118.Nm 119driver supports the following media options: 120.Bl -tag -width xxxxxxxxxxxxxxxxxxxx 121.It full-duplex 122Force full duplex operation 123.It half-duplex 124Force half duplex operation. 125.El 126.Pp 127The 128.Nm 129driver also supports one special link option for 1000baseT cards: 130.Bl -tag -width xxxxxxxxxxxxxxxxxxxx 131.It link0 132With 1000baseT cards, establishing a link between two ports requires 133that one port be configured as a master and the other a slave. 134With autonegotiation, 135the master/slave settings will be chosen automatically. 136However when manually selecting the link state, it is necessary to 137force one side of the link to be a master and the other a slave. 138The 139.Nm 140driver configures the ports as slaves by default. 141Setting the 142.Ar link0 143flag with 144.Xr ifconfig 8 145will set a port as a master instead. 146.El 147.Pp 148For more information on configuring this device, see 149.Xr ifconfig 8 . 150.Sh HARDWARE 151The 152.Nm 153driver supports SysKonnect based Gigabit Ethernet adapters and 154Marvell based Gigabit Ethernet adapters, including the following: 155.Pp 156.Bl -bullet -compact 157.It 1583Com 3c940 single port, copper adapter 159.It 1603Com 3c2000-T single port, copper adapter 161.It 162Belkin F5D5005, copper adapter 163.It 164D-Link DGE-530T, copper adapter 165.It 166Linksys EG1032v2, copper adapter 167.It 168Linksys EG1064v2, copper adapter 169.It 170SK-9821 SK-NET GE-T single port, copper adapter 171.It 172SK-9822 SK-NET GE-T dual port, copper adapter 173.It 174SK-9841 SK-NET GE-LX single port, single mode fiber adapter 175.It 176SK-9842 SK-NET GE-LX dual port, single mode fiber adapter 177.It 178SK-9843 SK-NET GE-SX single port, multimode fiber adapter 179.It 180SK-9844 SK-NET GE-SX dual port, multimode fiber adapter 181.It 182SK-9521 V2.0 single port, copper adapter (32-bit) 183.It 184SK-9821 V2.0 single port, copper adapter 185.It 186SK-9843 V2.0 single port, copper adapter 187.It 188SMC 9452TX, copper adapter 189.El 190.Sh DIAGNOSTICS 191.Bl -diag 192.It "skc%d: couldn't map memory" 193A fatal initialization error has occurred. 194.It "skc%d: couldn't map interrupt" 195A fatal initialization error has occurred. 196.It "sk%d: jumbo buffer allocation failed" 197The driver failed to allocate memory for jumbo frames 198during initialization. 199.It "sk%d: watchdog timeout" 200The device has stopped responding to the network, or there is a problem with 201the network connection (cable). 202.El 203.Sh SEE ALSO 204.Xr arp 4 , 205.Xr ifmedia 4 , 206.Xr miibus 4 , 207.Xr netintro 4 , 208.Xr ng_ether 4 , 209.Xr vlan 4 , 210.Xr ifconfig 8 211.Rs 212.%T XaQti XMAC II datasheet 213.%U http://www.xaqti.com 214.Re 215.Rs 216.%T SysKonnect GEnesis programming manual 217.%U http://www.syskonnect.com 218.Re 219.Sh HISTORY 220The 221.Nm 222device driver first appeared in 223.Fx 3.0 . 224.Sh AUTHORS 225The 226.Nm 227driver was written by 228.An Bill Paul Aq Mt wpaul@ctr.columbia.edu . 229