1.\" $NetBSD: sk.4,v 1.11 2007/11/09 03:54:45 manu Exp $ 2.\" 3.\" Copyright (c) 2003, The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the NetBSD 17.\" Foundation, Inc. and its contributors. 18.\" 4. Neither the name of The NetBSD Foundation nor the names of its 19.\" contributors may be used to endorse or promote products derived 20.\" from this software without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32.\" POSSIBILITY OF SUCH DAMAGE. 33.\" 34.\" $OpenBSD: sk.4,v 1.41 2006/08/16 22:01:56 kettenis Exp $ 35.\" 36.\" Copyright (c) 1997, 1998, 1999 37.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 38.\" 39.\" Redistribution and use in source and binary forms, with or without 40.\" modification, are permitted provided that the following conditions 41.\" are met: 42.\" 1. Redistributions of source code must retain the above copyright 43.\" notice, this list of conditions and the following disclaimer. 44.\" 2. Redistributions in binary form must reproduce the above copyright 45.\" notice, this list of conditions and the following disclaimer in the 46.\" documentation and/or other materials provided with the distribution. 47.\" 3. All advertising materials mentioning features or use of this software 48.\" must display the following acknowledgement: 49.\" This product includes software developed by Bill Paul. 50.\" 4. Neither the name of the author nor the names of any co-contributors 51.\" may be used to endorse or promote products derived from this software 52.\" without specific prior written permission. 53.\" 54.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 55.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 58.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 59.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 60.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 61.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 62.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 63.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 64.\" THE POSSIBILITY OF SUCH DAMAGE. 65.\" 66.\" $FreeBSD: src/share/man/man4/man4.i386/sk.4,v 1.3 1999/08/28 00:20:29 peter Exp $ 67.\" 68.Dd September 9, 2006 69.Dt SK 4 70.Os 71.Sh NAME 72.Nm sk , 73.Nm skc 74.Nd SysKonnect XMAC II and Marvell GMAC based gigabit ethernet 75.Sh SYNOPSIS 76.Cd "skc* at pci? dev ? function ?" 77.Cd "sk* at skc?" 78.Cd "mskc* at pci? dev ? function ?" 79.Cd "msk* at skc?" 80.Sh DESCRIPTION 81The 82.Nm sk 83driver provides support for SysKonnect based gigabit ethernet adapters 84and Marvell based gigabit ethernet adapters, including the following: 85.Pp 86.Bl -bullet -offset indent -compact 87.It 88SK-9821 SK-NET GE-T single port, copper adapter 89.It 90SK-9822 SK-NET GE-T dual port, copper adapter 91.It 92SK-9841 SK-NET GE-LX single port, single mode fiber adapter 93.It 94SK-9842 SK-NET GE-LX dual port, single mode fiber adapter 95.It 96SK-9843 SK-NET GE-SX single port, multimode fiber adapter 97.It 98SK-9844 SK-NET GE-SX dual port, multimode fiber adapter 99.It 100SK-9521 V2.0 single port, copper adapter (32-bit) 101.It 102SK-9821 V2.0 single port, copper adapter 103.It 104SK-9843 V2.0 single port, copper adapter 105.It 1063Com 3c940 single port, copper adapter 107.It 108Belkin Gigabit Desktop Network PCI Card, single port, copper (32-bit) 109.It 110D-Link DGE-530T single port, copper adapter 111.It 112Linksys EG1032v2 single-port, copper adapter 113.It 114Linksys EG1064v2 single-port, copper adapter 115.El 116.Pp 117The 118.Nm msk 119driver provides support for the Marvell Yukon-2 based Gigabit Ethernet 120adapters, including the following: 121.Pp 122.Bl -bullet -offset indent -compact 123.It 124Marvell Yukon 88E8035, copper adapter 125.It 126Marvell Yukon 88E8036, copper adapter 127.It 128Marvell Yukon 88E8038, copper adapter 129.It 130Marvell Yukon 88E8050, copper adapter 131.It 132Marvell Yukon 88E8052, copper adapter 133.It 134Marvell Yukon 88E8053, copper adapter 135.It 136Marvell Yukon 88E8055, copper adapter 137.It 138SK-9E21 1000Base-T single port, copper adapter 139.It 140SK-9E22 1000Base-T dual port, copper adapter 141.It 142SK-9E81 1000Base-SX single port, multimode fiber adapter 143.It 144SK-9E82 1000Base-SX dual port, multimode fiber adapter 145.It 146SK-9E91 1000Base-LX single port, single mode fiber adapter 147.It 148SK-9E92 1000Base-LX dual port, single mode fiber adapter 149.It 150SK-9S21 1000Base-T single port, copper adapter 151.It 152SK-9S22 1000Base-T dual port, copper adapter 153.It 154SK-9S81 1000Base-SX single port, multimode fiber adapter 155.It 156SK-9S82 1000Base-SX dual port, multimode fiber adapter 157.It 158SK-9S91 1000Base-LX single port, single mode fiber adapter 159.It 160SK-9S92 1000Base-LX dual port, single mode fiber adapter 161.It 162SK-9E21D 1000Base-T single port, copper adapter 163.El 164.Pp 165The SysKonnect based adapters consist of two main components: the 166XaQti Corp. XMAC II Gigabit MAC 167.Pq Nm sk 168and the SysKonnect GEnesis controller ASIC 169.Pq Nm skc . 170The XMAC provides the Gigabit MAC and PHY support 171while the GEnesis provides an interface to the PCI bus, DMA support, 172packet buffering and arbitration. 173The GEnesis can control up to two XMACs simultaneously, 174allowing dual-port NIC configurations. 175.Pp 176The Marvell based adapters are a single integrated circuit, but are 177still presented as a separate MAC 178.Pq Nm sk 179and controller ASIC 180.Pq Nm skc . 181At this time, there are no dual-port Marvell based NICs. 182.Pp 183The 184.Nm 185driver configures dual port SysKonnect adapters such that each XMAC 186is treated as a separate logical network interface. 187Both ports can operate independently of each other and can be connected 188to separate networks. 189The SysKonnect driver software currently only uses the second port on 190dual port adapters for failover purposes: if the link 191on the primary port fails, the SysKonnect driver will automatically 192switch traffic onto the second port. 193.Pp 194The XaQti XMAC II supports full and half duplex operation with 195autonegotiation. 196The XMAC also supports unlimited frame sizes. 197Support for jumbo frames is provided via the interface MTU setting. 198Selecting an MTU larger than 1500 bytes with the 199.Xr ifconfig 8 200utility configures the adapter to receive and transmit jumbo frames. 201Using jumbo frames can greatly improve performance for certain tasks, 202such as file transfers and data streaming. 203.Pp 204Hardware TCP/IP checksum offloading for IPv4 is supported. 205.Pp 206The following media types and options (as given to 207.Xr ifconfig 8 ) 208are supported: 209.Bl -tag -width xxx -offset indent 210.It Cm media No autoselect 211Enable autoselection of the media type and options. 212The user can manually override 213the autoselected mode. 214.\" by adding media options to the appropriate 215.\" .Xr hostname.if 5 216.\" file. 217.It Cm media No 1000baseSX Cm mediaopt No full-duplex 218Set 1000Mbps (Gigabit Ethernet) operation on fiber and force full-duplex mode. 219.It Cm media No 1000baseSX Cm mediaopt No half-duplex 220Set 1000Mbps (Gigabit Ethernet) operation on fiber and force half-duplex mode. 221.It Cm media No 1000baseT Cm mediaopt No full-duplex 222Set 1000Mbps (Gigabit Ethernet) operation and force full-duplex mode. 223.El 224.Pp 225For more information on configuring this device, see 226.Xr ifconfig 8 . 227To view a list of media types and options supported by the card, try 228.Ic ifconfig Fl m Aq device . 229For example, 230.Ic ifconfig Fl m Ar sk0 . 231.Sh DIAGNOSTICS 232.Bl -diag 233.It "sk%d: couldn't map memory" 234A fatal initialization error has occurred. 235.It "sk%d: couldn't map ports" 236A fatal initialization error has occurred. 237.It "sk%d: couldn't map interrupt" 238A fatal initialization error has occurred. 239.It "sk%d: failed to enable memory mapping!" 240The driver failed to initialize PCI shared memory mapping. 241This might happen if the card is not in a bus-master slot. 242.It "sk%d: no memory for jumbo buffers!" 243The driver failed to allocate memory for jumbo frames during 244initialization. 245.It "sk%d: watchdog timeout" 246The device has stopped responding to the network, or there is a problem with 247the network connection (cable). 248.El 249.Sh SEE ALSO 250.Xr ifmedia 4 , 251.Xr intro 4 , 252.Xr netintro 4 , 253.Xr pci 4 , 254.Xr ifconfig 8 255.Rs 256.%T XaQti XMAC II datasheet 257.%O http://www.xaqti.com 258.Re 259.Rs 260.%T SysKonnect GEnesis programming manual 261.%O http://www.syskonnect.com 262.Re 263.Sh HISTORY 264The 265.Nm 266device driver first appeared in 267.Fx 3.0 . 268.Ox 269support was added in 270.Ox 2.6 . 271.Nx 272support was added in 273.Nx 2.0 . 274.Pp 275The 276.Nm msk 277driver first appeared in 278.Ox 4.0 , 279and was ported to 280.Nx 4.0 . 281.Sh AUTHORS 282The 283.Nm 284driver was written by 285.An Bill Paul Aq wpaul@ctr.columbia.edu . 286Support for the Marvell Yukon-2 was added by 287.An Mark Kettenis Aq kettenis@openbsd.org . 288.Sh BUGS 289This driver is 290.Em experimental . 291.Pp 292Support for checksum offload is unimplemented. 293.Pp 294Performance with at least some Marvell-based adapters is poor, 295especially on loaded PCI buses or when the adapters are behind 296PCI-PCI bridges. 297It is believed that this is because the Marvell parts have 298significantly less buffering than the original SysKonnect cards 299had. 300