2 .\" Bill Paul <wpaul@windriver.com>. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
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.
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.
38 .Nd "VIA Networking Technologies VT6122 PCI Gigabit Ethernet adapter driver"
45 driver provides support for various NICs and embedded Ethernet interfaces
46 based on the VIA Networking Technologies VT6122 Gigabit Ethernet
49 The VT6122 is a 33/66Mhz 64-bit PCI device which combines a tri-speed MAC with
50 an integrated 10/100/1000 copper PHY.
51 (Some older cards use an external PHY.)
52 The MAC supports TCP/IP hardware
53 checksums (IPv4 only), TCP large send, VLAN tag insertion and stripping,
54 as well as VLAN filtering, a 64-entry CAM filter and a 64-entry VLAN filter,
55 64-bit multicast hash filter, 4 separate transmit DMA queues, flow control
56 and jumbo frames up to 16K in size.
57 The VT6122 has a 16K receive FIFO and 48K transmit FIFO.
61 driver takes advantage of the VT6122's checksum offload and VLAN
62 tagging features, as well as the jumbo frame and CAM filter support.
63 The CAM filter is used for multicast address filtering to provide
64 64 perfect multicast address filter support.
65 If it is necessary for the interface to join more than 64 multicast
66 groups, the driver will switch over to using the hash filter.
68 The jumbo frame support can be enabled by setting the interface MTU
69 to any value larger than the default of 1500 bytes, up to a maximum
71 The receive and transmit checksum offload support
72 can be toggled on and off using the
78 driver supports the following media types:
79 .Bl -tag -width ".Cm 10baseT/UTP"
81 Enable autoselection of the media type and options.
82 The user can manually override
83 the autoselected mode by adding media options to
90 option can also be used to select either
96 Set 100Mbps (Fast Ethernet) operation.
100 option can also be used to select either
106 Set 1000baseTX operation over twisted pair.
110 option can also be used to select either
119 driver supports the following media options:
120 .Bl -tag -width ".Cm full-duplex"
122 Force full duplex operation.
124 Force half duplex operation.
129 driver also supports one special link option for 1000baseTX cards:
130 .Bl -tag -width ".Cm link0"
132 With 1000baseTX cards, establishing a link between two ports requires
133 that one port be configured as a master and the other a slave.
134 With autonegotiation,
135 the master/slave settings will be chosen automatically.
136 However when manually selecting the link state, it is necessary to
137 force one side of the link to be a master and the other a slave.
140 driver configures the ports as slaves by default.
145 will set a port as a master instead.
148 For more information on configuring this device, see
153 driver supports VIA Networking VT3119 and VT6122 based
154 Gigabit Ethernet adapters including:
158 VIA Networking LAN-on-motherboard Gigabit Ethernet
160 ZyXEL GN650-T 64-bit PCI Gigabit Ethernet NIC (ZX1701)
162 ZyXEL GN670-T 32-bit PCI Gigabit Ethernet NIC (ZX1702)
166 .It "vge%d: couldn't map memory"
167 A fatal initialization error has occurred.
168 .It "vge%d: couldn't map ports"
169 A fatal initialization error has occurred.
170 .It "vge%d: couldn't map interrupt"
171 A fatal initialization error has occurred.
172 .It "vge%d: failed to enable memory mapping!"
173 The driver failed to initialize PCI shared memory mapping.
175 happen if the card is not in a bus-master slot.
176 .It "vge%d: watchdog timeout"
177 The device has stopped responding to the network, or there is a problem with
178 the network connection (cable).
191 device driver first appeared in
196 driver was written by
197 .An Bill Paul Aq wpaul@windriver.com .