1.\" Copyright (c) 2003 2.\" Bill Paul <wpaul@windriver.com>. 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.\" $DragonFly: src/share/man/man4/re.4,v 1.2 2005/12/04 18:07:47 dillon Exp $ 33.\" 34.Dd September 4, 2003 35.Dt RE 4 36.Os 37.Sh NAME 38.Nm re 39.Nd "RealTek 8139C+/8169/8169S/8110S PCI ethernet adapter driver" 40.Sh SYNOPSIS 41.Cd "device miibus" 42.Cd "device re" 43.Sh DESCRIPTION 44The 45.Nm 46driver provides support for various NICs based on the RealTek RTL8139C+, 47RTL8169, RTL8169S and RTL8110S PCI ethernet controllers, including 48the following: 49.Pp 50.Bl -bullet -compact 51.It 52Alloy Computer Products EtherGOLD 1439E 10/100 (8139C+) 53.It 54Compaq Evo N1015v Integrated Ethernet (8139C+) 55.It 56D-Link DGE-528(T) Gigabit Ethernet (8169S) 57.It 58Gigabyte 7N400 Pro2 Integrated Gigabit Ethernet (8110S) 59.It 60PLANEX COMMUNICATIONS Inc. GN-1200TC (8169S) 61.It 62Xterasys XN-152 10/100/1000 NIC (8169) 63.El 64.Pp 65NICs based on the 8139C+ are capable of 10 and 100Mbps speeds over CAT5 66cable. NICs based on the 8169, 8169S and 8110S are capable of 10, 100 and 671000Mbps operation. 68.Pp 69All NICs supported by the 70.Nm 71driver have TCP/IP checksum offload and hardware VLAN tagging/insertion 72features, and use a descriptor-based DMA mechanism. They are also 73capable of TCP large send (TCP segmentation offload). 74.Pp 75The 8139C+ is a single-chip solution combining both a 10/100 MAC and PHY. 76The 8169 is a 10/100/1000 MAC only, requiring a GMII or TBI external PHY. 77The 8169S and 8110S are single-chip devices containing both a 10/100/1000 78MAC and 10/100/1000 copper PHY. Standalone 10/100/1000 cards are available 79in both 32-bit PCI and 64-bit PCI models. The 8110S is designed for 80embedded LAN-on-motherboard applications. 81.Pp 82The 8169, 8169S and 8110S also support jumbo frames, which can be configured 83via the interface MTU setting. 84Selecting an MTU larger than 1500 bytes with the 85.Xr ifconfig 8 86utility configures the adapter to receive and transmit jumbo frames. 87.Pp 88The 89.Nm 90driver supports the following media types: 91.Bl -tag -width 10baseTXUTP 92.It Cm autoselect 93Enable autoselection of the media type and options. 94The user can manually override 95the autoselected mode by adding media options to 96.Xr rc.conf 5 . 97.It Cm 10baseT/UTP 98Set 10Mbps operation. 99The 100.Xr ifconfig 8 101.Ic mediaopt 102option can also be used to select either 103.Cm full-duplex 104or 105.Cm half-duplex 106modes. 107.It Cm 100baseTX 108Set 100Mbps (fast ethernet) operation. 109The 110.Xr ifconfig 8 111.Ic mediaopt 112option can also be used to select either 113.Cm full-duplex 114or 115.Cm half-duplex 116modes. 117.It Cm 1000baseTX 118Set 1000baseTX operation over twisted pair. 119The RealTek gigE chips support 1000Mbps in 120.Cm full-duplex 121mode only. 122.\" .It Cm 1000baseSX 123.\" Set 1000Mbps (gigabit ethernet) operation. 124.\" Both 125.\" .Cm full-duplex 126.\" and 127.\" .Cm half-duplex 128.\" modes are supported. 129.El 130.Pp 131The 132.Nm 133driver supports the following media options: 134.Bl -tag -width full-duplex 135.It Cm full-duplex 136Force full duplex operation. 137.It Cm half-duplex 138Force half duplex operation. 139.El 140.Pp 141For more information on configuring this device, see 142.Xr ifconfig 8 . 143.Sh DIAGNOSTICS 144.Bl -diag 145.It "re%d: couldn't map memory" 146A fatal initialization error has occurred. 147.It "re%d: couldn't map ports" 148A fatal initialization error has occurred. 149.It "re%d: couldn't map interrupt" 150A fatal initialization error has occurred. 151.It "re%d: no memory for softc struct!" 152The driver failed to allocate memory for per-device instance information 153during initialization. 154.It "re%d: failed to enable memory mapping!" 155The driver failed to initialize PCI shared memory mapping. 156This might 157happen if the card is not in a bus-master slot. 158.It "re%d: no memory for jumbo buffers!" 159The driver failed to allocate memory for jumbo frames during 160initialization. 161.It "re%d: watchdog timeout" 162The device has stopped responding to the network, or there is a problem with 163the network connection (cable). 164.El 165.Sh SEE ALSO 166.Xr arp 4 , 167.Xr miibus 4 , 168.Xr netintro 4 , 169.Xr ng_ether 4 , 170.Xr vlan 4 , 171.Xr ifconfig 8 172.Rs 173.%T RealTek Semiconductor RTL8139C+, RTL8169, RTL8169S and RTL8110S datasheets 174.%O http://www.realtek.com.tw 175.Re 176.Sh HISTORY 177The 178.Nm 179device driver first appeared in 180.Fx 5.2 181and 182.Dx 1.0 . 183.Sh AUTHORS 184The 185.Nm 186driver was written by 187.An Bill Paul Aq wpaul@windriver.com . 188.Sh BUGS 189The Xterasys XN-152 32-bit PCI NIC, which uses the RTL8169 MAC and 190Marvell 88E1000 PHY, has a defect that causes DMA corruption 191if the board is plugged into a 64-bit PCI slot. The defect 192lies in the board design, not the chip itself: the PCI REQ64# and ACK64# 193lines should be pulled high, but they are not. The result is that the 1948169 chip is tricked into performing 64-bit DMA transfers even though 195a 64-bit data path between the NIC and the bus does not actually exist. 196.Pp 197Unfortunately, it is not possible to correct this problem in software, 198however it is possible to detect it. When the 199.Nm 200driver is loaded, it will run a diagnostic routine designed to 201validate DMA operation by placing the chip in digital loopback mode 202and initiating a packet transmission. If the card functions properly, 203the transmitted data will 204be echoed back unmodified. If the echoed data is corrupt, the driver 205will print an error message on the console and abort the device attach. The 206user should insure the NIC is installed in a 32-bit PCI slot to 207avoid this problem. 208.Pp 209The RealTek 8169, 8169S and 8110S chips appear to only be capable of 210transmitting jumbo frames up to 7440 bytes in size. 211