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38 .Nd "VIA Networking Technologies VT6122 PCI Gigabit Ethernet adapter driver"
40 To compile this driver into the kernel,
41 place the following lines in your
42 kernel configuration file:
43 .Bd -ragged -offset indent
48 Alternatively, to load the driver as a
49 module at boot time, place the following line in
51 .Bd -literal -offset indent
57 driver provides support for various NICs and embedded Ethernet interfaces
58 based on the VIA Networking Technologies VT6122 Gigabit Ethernet
61 The VT6122 is a 33/66Mhz 64-bit PCI device which combines a tri-speed MAC with
62 an integrated 10/100/1000 copper PHY.
63 (Some older cards use an external PHY.)
64 The MAC supports TCP/IP hardware
65 checksums (IPv4 only), TCP large send, VLAN tag insertion and stripping,
66 as well as VLAN filtering, a 64-entry CAM filter and a 64-entry VLAN filter,
67 64-bit multicast hash filter, 4 separate transmit DMA queues, flow control
68 and jumbo frames up to 16K in size.
69 The VT6122 has a 16K receive FIFO and 48K transmit FIFO.
73 driver takes advantage of the VT6122's checksum offload and VLAN
74 tagging features, as well as the jumbo frame and CAM filter support.
75 The CAM filter is used for multicast address filtering to provide
76 64 perfect multicast address filter support.
77 If it is necessary for the interface to join more than 64 multicast
78 groups, the driver will switch over to using the hash filter.
80 The jumbo frame support can be enabled by setting the interface MTU
81 to any value larger than the default of 1500 bytes, up to a maximum
83 The receive and transmit checksum offload support
84 can be toggled on and off using the
90 driver supports the following media types:
91 .Bl -tag -width ".Cm 10baseT/UTP"
93 Enable autoselection of the media type and options.
94 The user can manually override
95 the autoselected mode by adding media options to
102 option can also be used to select either
108 Set 100Mbps (Fast Ethernet) operation.
112 option can also be used to select either
118 Set 1000baseTX operation over twisted pair.
122 option can also be used to select either
131 driver supports the following media options:
132 .Bl -tag -width ".Cm full-duplex"
134 Force full duplex operation.
136 Force half duplex operation.
141 driver also supports one special link option for 1000baseTX cards:
142 .Bl -tag -width ".Cm link0"
144 With 1000baseTX cards, establishing a link between two ports requires
145 that one port be configured as a master and the other a slave.
146 With autonegotiation,
147 the master/slave settings will be chosen automatically.
148 However when manually selecting the link state, it is necessary to
149 force one side of the link to be a master and the other a slave.
152 driver configures the ports as slaves by default.
157 will set a port as a master instead.
160 For more information on configuring this device, see
165 driver supports VIA Networking VT3119 and VT6122 based
166 Gigabit Ethernet adapters including:
170 VIA Networking LAN-on-motherboard Gigabit Ethernet
172 ZyXEL GN650-T 64-bit PCI Gigabit Ethernet NIC (ZX1701)
174 ZyXEL GN670-T 32-bit PCI Gigabit Ethernet NIC (ZX1702)
178 .It "vge%d: couldn't map memory"
179 A fatal initialization error has occurred.
180 .It "vge%d: couldn't map ports"
181 A fatal initialization error has occurred.
182 .It "vge%d: couldn't map interrupt"
183 A fatal initialization error has occurred.
184 .It "vge%d: failed to enable memory mapping!"
185 The driver failed to initialize PCI shared memory mapping.
187 happen if the card is not in a bus-master slot.
188 .It "vge%d: watchdog timeout"
189 The device has stopped responding to the network, or there is a problem with
190 the network connection (cable).
204 device driver first appeared in
209 driver was written by
210 .An Bill Paul Aq wpaul@windriver.com .