tx(4)

NAME

tx - SMC 83c17x Fast Ethernet device driver

SYNOPSIS

To compile this driver into the kernel, place the  following
lines in your
kernel configuration file:
      device miibus
      device tx
Alternatively,  to load the driver as a module at boot time,
place the
following line in loader.conf(5):
      if_tx_load="YES"

DESCRIPTION

The tx driver provides support for the Ethernet adapters

based on the SMC
83c17x (EPIC) chips. These are mostly SMC 9432 series

cards.

The tx driver supports the following media types (depending

on card's
capabilities):

autoselect Enable autonegotiation (default).

100baseFX Set 100Mbps (Fast Ethernet) fiber optic op

eration.

100baseTX Set 100Mbps (Fast Ethernet) twisted pair

operation.

10baseT/UTP Set 10Mbps on 10baseT port.

10base2/BNC Set 10Mbps on 10base2 port.

The tx driver supports the following media options:

full-duplex Set full-duplex operation.

The tx driver supports oversized Ethernet packets (up to

1600 bytes).
Refer to the ifconfig(8) man page on setting the interface's

MTU.

The old ``ifconfig tx0 linkN'' method of configuration is

not supported.

VLAN (IEEE 802.1Q) support

The tx driver supports the VLAN operation (using vlan(4) in

terfaces)
without decreasing the MTU on the vlan(4) interfaces.

DIAGNOSTICS

tx%d: device timeout %d packets The device stops respond

ing. Device and
driver reset follows this error.

tx%d: PCI fatal error occurred (%s) One of following errors

occurred:
PCI Target Abort, PCI Master Abort, Data Parity Error or Ad

dress Parity
Error. Device and driver reset follows this error.

tx%d: cannot allocate mbuf header/cluster Cannot allocate

memory for
received packet. Packet thrown away.

tx%d: can't stop %s DMA While resetting, the driver failed

to stop the
device correctly.

SEE ALSO

arp(4), miibus(4), netintro(4), ng_ether(4), ifconfig(8)

BUGS

The auto-negotiation does not work very well.

BSD July 16, 2005

BSD