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 1.1 2004/07/07 09:47:27 joerg 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 56Gigabyte 7N400 Pro2 Integrated Gigabit Ethernet (8110S) 57.It 58PLANEX COMMUNICATIONS Inc. GN-1200TC (8169S) 59.It 60Xterasys XN-152 10/100/1000 NIC (8169) 61.El 62.Pp 63NICs based on the 8139C+ are capable of 10 and 100Mbps speeds over CAT5 64cable. NICs based on the 8169, 8169S and 8110S are capable of 10, 100 and 651000Mbps operation. 66.Pp 67All NICs supported by the 68.Nm 69driver have TCP/IP checksum offload and hardware VLAN tagging/insertion 70features, and use a descriptor-based DMA mechanism. They are also 71capable of TCP large send (TCP segmentation offload). 72.Pp 73The 8139C+ is a single-chip solution combining both a 10/100 MAC and PHY. 74The 8169 is a 10/100/1000 MAC only, requiring a GMII or TBI external PHY. 75The 8169S and 8110S are single-chip devices containing both a 10/100/1000 76MAC and 10/100/1000 copper PHY. Standalone 10/100/1000 cards are available 77in both 32-bit PCI and 64-bit PCI models. The 8110S is designed for 78embedded LAN-on-motherboard applications. 79.Pp 80The 8169, 8169S and 8110S also support jumbo frames, which can be configured 81via the interface MTU setting. 82Selecting an MTU larger than 1500 bytes with the 83.Xr ifconfig 8 84utility configures the adapter to receive and transmit jumbo frames. 85.Pp 86The 87.Nm 88driver supports the following media types: 89.Bl -tag -width 10baseTXUTP 90.It Cm autoselect 91Enable autoselection of the media type and options. 92The user can manually override 93the autoselected mode by adding media options to 94.Xr rc.conf 5 . 95.It Cm 10baseT/UTP 96Set 10Mbps operation. 97The 98.Xr ifconfig 8 99.Ic mediaopt 100option can also be used to select either 101.Cm full-duplex 102or 103.Cm half-duplex 104modes. 105.It Cm 100baseTX 106Set 100Mbps (fast ethernet) operation. 107The 108.Xr ifconfig 8 109.Ic mediaopt 110option can also be used to select either 111.Cm full-duplex 112or 113.Cm half-duplex 114modes. 115.It Cm 1000baseTX 116Set 1000baseTX operation over twisted pair. 117The RealTek gigE chips support 1000Mbps in 118.Cm full-duplex 119mode only. 120.\" .It Cm 1000baseSX 121.\" Set 1000Mbps (gigabit ethernet) operation. 122.\" Both 123.\" .Cm full-duplex 124.\" and 125.\" .Cm half-duplex 126.\" modes are supported. 127.El 128.Pp 129The 130.Nm 131driver supports the following media options: 132.Bl -tag -width full-duplex 133.It Cm full-duplex 134Force full duplex operation. 135.It Cm half-duplex 136Force half duplex operation. 137.El 138.Pp 139For more information on configuring this device, see 140.Xr ifconfig 8 . 141.Sh DIAGNOSTICS 142.Bl -diag 143.It "re%d: couldn't map memory" 144A fatal initialization error has occurred. 145.It "re%d: couldn't map ports" 146A fatal initialization error has occurred. 147.It "re%d: couldn't map interrupt" 148A fatal initialization error has occurred. 149.It "re%d: no memory for softc struct!" 150The driver failed to allocate memory for per-device instance information 151during initialization. 152.It "re%d: failed to enable memory mapping!" 153The driver failed to initialize PCI shared memory mapping. 154This might 155happen if the card is not in a bus-master slot. 156.It "re%d: no memory for jumbo buffers!" 157The driver failed to allocate memory for jumbo frames during 158initialization. 159.It "re%d: watchdog timeout" 160The device has stopped responding to the network, or there is a problem with 161the network connection (cable). 162.El 163.Sh SEE ALSO 164.Xr arp 4 , 165.Xr miibus 4 , 166.Xr netintro 4 , 167.Xr ng_ether 4 , 168.Xr vlan 4 , 169.Xr ifconfig 8 170.Rs 171.%T RealTek Semiconductor RTL8139C+, RTL8169, RTL8169S and RTL8110S datasheets 172.%O http://www.realtek.com.tw 173.Re 174.Sh HISTORY 175The 176.Nm 177device driver first appeared in 178.Fx 5.2 179and 180.Dx 1.0 . 181.Sh AUTHORS 182The 183.Nm 184driver was written by 185.An Bill Paul Aq wpaul@windriver.com . 186.Sh BUGS 187The Xterasys XN-152 32-bit PCI NIC, which uses the RTL8169 MAC and 188Marvell 88E1000 PHY, has a defect that causes DMA corruption 189if the board is plugged into a 64-bit PCI slot. The defect 190lies in the board design, not the chip itself: the PCI REQ64# and ACK64# 191lines should be pulled high, but they are not. The result is that the 1928169 chip is tricked into performing 64-bit DMA transfers even though 193a 64-bit data path between the NIC and the bus does not actually exist. 194.Pp 195Unfortunately, it is not possible to correct this problem in software, 196however it is possible to detect it. When the 197.Nm 198driver is loaded, it will run a diagnostic routine designed to 199validate DMA operation by placing the chip in digital loopback mode 200and initiating a packet transmission. If the card functions properly, 201the transmitted data will 202be echoed back unmodified. If the echoed data is corrupt, the driver 203will print an error message on the console and abort the device attach. The 204user should insure the NIC is installed in a 32-bit PCI slot to 205avoid this problem. 206.Pp 207The RealTek 8169, 8169S and 8110S chips appear to only be capable of 208transmitting jumbo frames up to 7.5K in size. 209