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EP(4) Device Drivers Manual EP(4)

ep — 3Com EtherLink III and Fast EtherLink III 10/100 Ethernet device

ep* at eisa?
ep* at isa?
ep* at pci?
ep* at pcmcia?
ep* at isapnp?
tqphy* at mii?

The ep device driver supports the 3Com EtherLink III and Fast EtherLink III family of Ethernet cards. This includes, among others, the following models:

3C509
EtherLink III ISA
3C509B
EtherLink III ISA (Plug-and-Play)
3C556
EtherLink III LAN+Modem PC Card (PCMCIA)
3C562
EtherLink III LAN+33.6K Modem PC Card (PCMCIA)
3C574
Fast EtherLink III 10/100 LAN PC Card (PCMCIA)
3C579
EtherLink III EISA
3C589
EtherLink III LAN PC Card (PCMCIA)
3C590
Fast EtherLink III PCI
3C592
EtherLink III EISA Bus Master
3C595
Fast EtherLink III PCI 10/100
3C597
Fast EtherLink III EISA 10/100

Category 3, 4 or 5 unshielded twisted-pair (UTP) cable should be used for RJ-45 (10baseT), thick Ethernet coaxial (RG59 B/U, 50 ohm) for AUI/DIX, and thin Ethernet coaxial (RG58 A/U or C/U, 50 ohm +/- 4) for BNC (10base2). Some 3Com NICs also support MII connectors (switchable 10/100Mbps UTP).

The following media types and options (as given to ifconfig(8)) are supported:

autoselect
Enable autoselection of media type and options.
100baseTX mediaopt full-duplex
Set 100Mbps (Fast Ethernet) operation and force full-duplex mode.
100baseTX mediaopt half-duplex
Set 100Mbps (Fast Ethernet) operation and force half-duplex mode.
10baseT mediaopt full-duplex
Set 10baseT (UTP) operation and force full-duplex mode.
10baseT mediaopt half-duplex
Set 10baseT (UTP) operation and force half-duplex mode.
10base5
Set 10base5 (thick-net) operation (half-duplex only).
10base2
Set 10base2 (thin-net) operation (half-duplex only).

Note that the 100baseTX media type is only available if supported by the adapter. For more information on configuring this device, see ifconfig(8). To view a list of media types and options supported by your card try “ifconfig <device> media”. For example, “ifconfig ep0 media”.

If more than one of the supported cards is installed, they are probed for in the following order:

  1. PCI cards based on PCI function number order.
  2. EISA cards based on EISA slot number order.
  3. ISA cards based on increasing Ethernet address order.
  4. Any ISA cards in Plug-and-Play mode, in Plug-and-Play order.

You may specify the port and IRQ numbers where the cards are expected to be found, but it is not necessary. The cards are intelligent enough to let us know where they live on the bus.

ep0: reset (status: %x)
The driver has encountered a FIFO underrun or overrun. The driver will reset the card and the packet will be lost. This is not fatal.
ep0: eeprom failed to come ready
The EEPROM failed to come ready. This probably means the card is wedged.
ep0: erase pencil mark, or disable PnP mode!
This means that someone has scribbled with pencil in the test area on the card. Erase the pencil mark and reboot. (This is not a joke).

eisa(4), ifmedia(4), intro(4), isa(4), isapnp(4), pci(4), pcmcia(4), tqphy(4), hostname.if(5), ifconfig(8)

August 14, 2013 OpenBSD-6.5