1 .\" $NetBSD: re.4,v 1.11 2006/12/16 09:56:44 pavel Exp $
4 .\" Bill Paul <wpaul@windriver.com>. All rights reserved.
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33 .\" $FreeBSD: src/share/man/man4/re.4,v 1.4 2004/03/04 06:42:46 sanpei Exp $
40 .Nd "RealTek 8139C+/8169/8169S/8110S PCI Ethernet adapter driver"
42 .Cd "re* at pci? dev ? function ?"
43 .Cd "re* at cardbus? function ?"
47 driver provides support for various NICs based on the RealTek RTL8139C+,
48 RTL8169, RTL8169S, and RTL8110S PCI/Cardbus Ethernet controllers, including
53 Alloy Computer Products EtherGOLD 1439E 10/100 (8139C+)
55 Compaq Evo N1015v Integrated Ethernet (8139C+)
57 Gigabyte 7N400 Pro2 Integrated Gigabit Ethernet (8110S)
61 PLANEX COMMUNICATIONS Inc. GN-1200TC (8169S)
63 Xterasys XN-152 10/100/1000 NIC (8169)
65 Corega CG-LAPCIGT Gigabit Ethernet (8169S)
67 D-Link DGE-528T Gigabit Ethernet (8169S)
69 US Robotics (3Com) USR997902 Gigabit Ethernet (8169S)
71 Linksys EG1032 rev. 3 Gigabit Ethernet (8169S)
74 NICs based on the 8139C+ are capable of 10 and 100Mbps speeds over
76 NICs based on the 8169, 8169S, and 8110S are capable of 10, 100, and
79 All NICs supported by the
81 driver have TCP/IP checksum offload and hardware VLAN tagging/insertion
82 features, and use a descriptor-based DMA mechanism.
83 They are also capable of TCP large send (TCP segmentation offload).
85 The 8139C+ is a single-chip solution combining both a 10/100 MAC and PHY,
86 and its PHY is supported by
88 The 8169 is a 10/100/1000 MAC only, requiring a GMII or TBI external PHY
89 and some 8169 based boards have Marvell 88E1000 PHY supported by
91 The 8169S and 8110S are single-chip devices containing both a 10/100/1000
92 MAC and 10/100/1000 copper PHY, which is supported by
94 Standalone 10/100/1000 cards are available in both 32-bit PCI and
96 The 8110S is designed for embedded LAN-on-motherboard applications.
98 The 8169, 8169S, and 8110S also support jumbo frames, which can be
99 configured via the interface MTU setting.
100 Selecting an MTU larger than 1500 bytes with the
102 utility configures the adapter to receive and transmit jumbo frames.
106 driver supports the following media types:
107 .Bl -tag -width 10baseTXUTP
109 Enable autoselection of the media type and options.
110 The user can manually override
111 the autoselected mode by adding media options to
114 Set 10Mbps operation.
118 option can also be used to select either
124 Set 100Mbps (Fast Ethernet) operation.
128 option can also be used to select either
134 Set 1000baseTX operation over twisted pair.
135 The RealTek GigE chips support 1000Mbps in
138 .\" .It Cm 1000baseSX
139 .\" Set 1000Mbps (Gigabit Ethernet) operation.
144 .\" modes are supported.
149 driver supports the following media options:
150 .Bl -tag -width full-duplex
152 Force full duplex operation.
154 Force half duplex operation.
157 For more information on configuring this device, see
161 .It "re%d: can't map i/o space"
162 A fatal initialization error has occurred.
163 .It "re%d: can't map mem space"
164 A fatal initialization error has occurred.
165 .It "re%d: couldn't map interrupt"
166 A fatal initialization error has occurred.
167 .It "re%d: watchdog timeout"
168 The device has stopped responding to the network, or there is a problem with
169 the network connection (cable).
181 .%T RealTek Semiconductor RTL8139C+, RTL8169, RTL8169S, and RTL8110S datasheets
182 .%O http://www.realtek.com.tw
187 device driver first appeared in
194 driver was written by
195 .An Bill Paul Aq wpaul@windriver.com .
197 The Xterasys XN-152 32-bit PCI NIC, which uses the RTL8169 MAC and
198 Marvell 88E1000 PHY, has a defect that causes DMA corruption
199 if the board is plugged into a 64-bit PCI slot.
200 The defect lies in the board design, not the chip itself: the PCI
201 REQ64# and ACK64# lines should be pulled high, but they are not.
202 The result is that the 8169 chip is tricked into performing 64-bit
203 DMA transfers even though a 64-bit data path between the NIC and
204 the bus does not actually exist.
206 Unfortunately, it is not possible to correct this problem in software,
207 however it is possible to detect it.
210 driver is loaded, it will run a diagnostic routine designed to
211 validate DMA operation by placing the chip in digital loopback mode
212 and initiating a packet transmission.
213 If the card functions properly, the transmitted data will
214 be echoed back unmodified.
215 If the echoed data is corrupt, the driver
216 will print an error message on the console and abort the device attach.
217 The user should ensure the NIC is installed in a 32-bit PCI slot to
220 The RealTek 8169, 8169S, and 8110S chips appear to only be capable of
221 transmitting jumbo frames up to 7.5K in size.