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3 .\" Copyright (c) 1997 Jonathan Stone
4 .\" All rights reserved.
6 .\" Copyright (c) 1994 Herb Peyerl
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19 .\" This product includes software developed by Herb Peyerl
20 .\" This product includes software developed by Jonathan Stone
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40 .Nd driver for 3Com EtherLink III Ethernet interfaces
42 .Cd "ep0 at isa? port ? irq ?"
44 .Cd "ep* at eisa? slot ?"
45 .Cd "ep* at mca? slot ?"
46 .Cd "ep* at pci? dev ? function ?"
47 .Cd "ep* at pcmcia? function ?"
51 device driver supports the 3Com EtherLink III family of Ethernet cards.
53 The 3c515 is an ISA 10/100 card with DMA capability.
54 The chipset is similar to that of the 3c905, with some changes to
55 make it work with the more limited ISA bus address space.
56 This card is supported, although DMA is not used.
58 The EISA and PCI 3c59x devices use an older DMA engine which is not
59 capable of multi-segment DMA.
60 DMA on these devices is not used.
62 The 3c529 is a MCA device, and doesn't support DMA.
64 The PCI 3c90x devices have multi-segment DMA capability, which is
68 To use the DMA capabilities of these cards, the
72 The PCI 3c90xB devices are not supported by the
74 driver, as they do not include support for programmed I/O.
75 These devices are supported by the
79 The 3c575 is a CardBus device, and is supported by
83 There are 3 main chipset classes supported by the
86 Each has their own media selection capabilities.
88 The first class is the
91 This includes the 3c509, 3c509B, 3c529, 3c579, 3c562, and 3c589.
92 These devices can support 10BASE-T, 10BASE2, and 10BASE5.
93 Available media will be displayed when the device is found by the kernel.
95 The second class is the
98 This includes the 3c592, 3c579, 3c590, and 3c595.
99 This class also includes the 3c900-TPO and 3c900-COMBO; they use the
101 chipset, but use Vortex-style media selection.
102 These devices have many different media types varying by model.
103 Some models have an external MII connector for connecting an external
105 This is supported by means of the
108 Available media will be displayed when the device is found by the kernel.
110 The third class is the
113 This includes the 3c515, 3c905, and 3c574.
114 These devices support media selection via MII.
115 The 3c515 and 3c905 have an
124 for more information.
126 Supported cards include:
128 .Bl -tag -width xxxxxx -offset indent
130 ISA 10Mbps card, in BNC and multiport variants
132 ISA Plug-and-Play 10Mbps card, in BNC and multiport variants
134 ISA Plug-and-Play 10/100 card with UTP
136 MCA 10Mbps card, in UTP+AUI and BNC+AUI variants
138 PCMCIA 56K modem-10/100Mbps Ethernet combo card with dongle
140 PCMCIA modem-10Mbps Ethernet combo card with dongle
142 PCMCIA 10/100Mbps card with dongle
144 EISA 10Mbps card, in UTP, BNC, and multiport variants
146 PCMCIA 10Mbps card with dongle
148 PCI 10Mbps multiport card with DMA capability
150 EISA 10Mbps card with DMA capability
152 PCI 10/100Mbps with different media options and DMA capability
154 EISA 10/100Mbps card with DMA capability
156 PCI 10Mbps card in 10BASE-T and multiport variants with DMA capability
158 PCI 10/100Mbps card in 10BASE-T, multiport, and fast variants with
162 EtherLink III cards have no jumpers to set the address.
163 3Com supplies software to set the address of the card in software.
164 To find the card on the ISA bus, the kernel performs a complex
165 scan operation at IO address 0x100.
167 Avoid placing other cards at that address!
169 The 3Com configuration utilities can `autosense' the active media and
171 The saved default medium is the medium that
172 was active at the time the configuration utility was run.
175 driver does not yet re-autosense the active media at boot time.
176 If the EEPROM autosense bit is set, the driver simply uses the media
177 type sensed and saved when the configuration utility was run.
180 .It "ep0: reset (status: %x)"
181 the driver has encountered a FIFO underrun or overrun.
182 The driver will reset the card and the packet will be lost.
184 .It "ep0: eeprom failed to come ready"
185 The EEPROM failed to come ready.
186 This probably means the card is wedged.
187 .It "ep0: 3c509 in test mode. Erase pencil mark!"
188 This means that someone has scribbled with pencil in the test area on the
190 Erase the pencil mark and reboot.
191 (This is not a joke).