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38 .Nd "RealTek 8139C+/8169/8169S/8110S PCI Ethernet adapter driver"
45 driver provides support for various NICs based on the RealTek RTL8139C+,
46 RTL8169, RTL8169S and RTL8110S PCI Ethernet controllers.
48 NICs based on the 8139C+ are capable of 10 and 100Mbps speeds over CAT5
50 NICs based on the 8169, 8169S and 8110S are capable of 10, 100 and
53 All NICs supported by the
55 driver have TCP/IP checksum offload and hardware VLAN tagging/insertion
56 features, and use a descriptor-based DMA mechanism.
58 capable of TCP large send (TCP segmentation offload).
60 The 8139C+ is a single-chip solution combining both a 10/100 MAC and PHY.
61 The 8169 is a 10/100/1000 MAC only, requiring a GMII or TBI external PHY.
62 The 8169S and 8110S are single-chip devices containing both a 10/100/1000
63 MAC and 10/100/1000 copper PHY.
64 Standalone 10/100/1000 cards are available
65 in both 32-bit PCI and 64-bit PCI models.
66 The 8110S is designed for
67 embedded LAN-on-motherboard applications.
69 The 8169, 8169S and 8110S also support jumbo frames, which can be configured
70 via the interface MTU setting.
71 Selecting an MTU larger than 1500 bytes with the
73 utility configures the adapter to receive and transmit jumbo frames.
77 driver supports the following media types:
78 .Bl -tag -width ".Cm 10baseT/UTP"
80 Enable autoselection of the media type and options.
81 The user can manually override
82 the autoselected mode by adding media options to
89 option can also be used to select either
95 Set 100Mbps (Fast Ethernet) operation.
99 option can also be used to select either
105 Set 1000baseTX operation over twisted pair.
106 The RealTek gigE chips support 1000Mbps in
109 .\" .It Cm 1000baseSX
110 .\" Set 1000Mbps (Gigabit Ethernet) operation.
115 .\" modes are supported.
120 driver supports the following media options:
121 .Bl -tag -width ".Cm full-duplex"
123 Force full duplex operation.
125 Force half duplex operation.
128 For more information on configuring this device, see
133 driver supports RealTek RTL8139C+, RTL8169, RTL8169S and RTL8110S
134 based Fast Ethernet and Gigabit Ethernet adapters including:
138 Alloy Computer Products EtherGOLD 1439E 10/100 (8139C+)
140 Compaq Evo N1015v Integrated Ethernet (8139C+)
142 Corega CG-LAPCIGT Gigabit Ethernet (8169S)
144 Gigabyte 7N400 Pro2 Integrated Gigabit Ethernet (8110S)
146 PLANEX COMMUNICATIONS Inc.\& GN-1200TC (8169S)
148 Xterasys XN-152 10/100/1000 NIC (8169)
152 .It "re%d: couldn't map memory"
153 A fatal initialization error has occurred.
154 .It "re%d: couldn't map ports"
155 A fatal initialization error has occurred.
156 .It "re%d: couldn't map interrupt"
157 A fatal initialization error has occurred.
158 .It "re%d: no memory for softc struct!"
159 The driver failed to allocate memory for per-device instance information
160 during initialization.
161 .It "re%d: failed to enable memory mapping!"
162 The driver failed to initialize PCI shared memory mapping.
164 happen if the card is not in a bus-master slot.
165 .It "re%d: no memory for jumbo buffers!"
166 The driver failed to allocate memory for jumbo frames during
168 .It "re%d: watchdog timeout"
169 The device has stopped responding to the network, or there is a problem with
170 the network connection (cable).
180 .%T RealTek Semiconductor RTL8139C+, RTL8169, RTL8169S and RTL8110S datasheets
181 .%O http://www.realtek.com.tw/
186 device driver first appeared in
191 driver was written by
192 .An Bill Paul Aq wpaul@windriver.com .
194 The Xterasys XN-152 32-bit PCI NIC, which uses the RTL8169 MAC and
195 Marvell 88E1000 PHY, has a defect that causes DMA corruption
196 if the board is plugged into a 64-bit PCI slot.
198 lies in the board design, not the chip itself: the PCI REQ64# and ACK64#
199 lines should be pulled high, but they are not.
200 The result is that the
201 8169 chip is tricked into performing 64-bit DMA transfers even though
202 a 64-bit data path between the NIC and the bus does not actually exist.
204 Unfortunately, it is not possible to correct this problem in software,
205 however it is possible to detect it.
208 driver is loaded, it will run a diagnostic routine designed to
209 validate DMA operation by placing the chip in digital loopback mode
210 and initiating a packet transmission.
211 If the card functions properly,
212 the transmitted data will
213 be echoed back unmodified.
214 If the echoed data is corrupt, the driver
215 will print an error message on the console and abort the device attach.
217 user should insure 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.