TL(4) BSD Kernel Interfaces Manual TL(4)
tl -- Texas Instruments ThunderLAN Ethernet device driver
The tl driver provides support for PCI Ethernet adapters based on the
Texas Instruments ThunderLAN Ethernet controller chip.
The ThunderLAN controller has a standard MII interface that supports up
to 32 physical interface devices (PHYs). It also has a built-in 10baseT
PHY hardwired at MII address 31, which may be used in some 10Mbps-only
hardware configurations. In 100Mbps configurations, a National Semicon-
ductor DP83840A or other MII-compliant PHY may be attached to the Thun-
derLAN's MII bus. If a DP83840A or equivalent is available, the Thunder-
LAN chip can operate at either 100Mbps or 10Mbps in either half-duplex or
full-duplex modes. The ThunderLAN's built-in PHY and the DP83840A also
The tl driver supports the following media types:
autoselect Enable autoselection of the media type and options.
Note that this option is only available on those
PHYs that support autonegotiation. Also, the PHY
will not advertise those modes that have been
explicitly disabled using the following media
10baseT/UTP Set 10Mbps operation
100baseTX Set 100Mbps (Fast Ethernet) operation
10base5/AUI Enable AUI/BNC interface (useful only with the
The tl driver supports the following media options:
full-duplex Force full duplex operation
half-duplex Force half duplex operation.
hw-loopback Enable hardware loopback mode.
Note that the 100baseTX media type is only available if supported by the
PHY. For more information on configuring this device, see ifconfig(8).
The tl driver supports Texas Instruments ThunderLAN based Ethernet and
Fast Ethernet adapters including a large number of Compaq PCI Ethernet
adapters. Also supported are:
o Olicom OC-2135/2138 10/100 TX UTP adapter
o Olicom OC-2325/OC-2326 10/100 TX UTP adapter
o Racore 8148 10baseT/100baseTX/100baseFX adapter
o Racore 8165 10/100baseTX adapter
The tl driver also supports the built-in Ethernet adapters of various
Compaq Prosignia servers and Compaq Deskpro desktop machines including:
o Compaq Netelligent 10
o Compaq Netelligent 10 T PCI UTP/Coax
o Compaq Netelligent 10/100
o Compaq Netelligent 10/100 Dual-Port
o Compaq Netelligent 10/100 Proliant
o Compaq Netelligent 10/100 TX Embedded UTP
o Compaq Netelligent 10/100 TX UTP
o Compaq NetFlex 3P
o Compaq NetFlex 3P Integrated
o Compaq NetFlex 3P w/BNC
tl%d: couldn't map memory A fatal initialization error has occurred.
tl%d: couldn't map interrupt A fatal initialization error has occurred.
tl%d: device timeout The device has stopped responding to the network,
or there is a problem with the network connection (cable).
tl%d: no memory for rx list The driver failed to allocate an mbuf for
the receiver ring.
tl%d: no memory for tx list The driver failed to allocate an mbuf for
the transmitter ring when allocating a pad buffer or collapsing an mbuf
chain into a cluster.
arp(4), miibus(4), netintro(4), ng_ether(4), ifconfig(8)
The tl device driver first appeared in FreeBSD 2.2.
The tl driver was written by Bill Paul <wpaulATctr.edu>.
BSD September 3, 2004 BSD