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NAME    [Toc]    [Back]

     tl -- Texas Instruments ThunderLAN ethernet device driver

SYNOPSIS    [Toc]    [Back]

     device miibus
     device tl

DESCRIPTION    [Toc]    [Back]

     The tl driver provides support for PCI ethernet adapters based on the
     Texas Instruments ThunderLAN ethernet controller chip.  This includes a
     large number of Compaq PCI-bus ethernet adapters as well as the integrated
 ethernet controllers built in to several models of Compaq Prosignia
 servers and Compaq Deskpro desktop machines (Compaq Netelligent 10,
     10/100, 10/100 Dual-Port, 10/100 Proliant, 10/100 TX Embedded UTP, 10 T
     PCI UTP/Coax, and 10/100 TX UTP; Compaq NetFlex 3P, 3P Integrated, and 3P
     w/BNC).  This driver also supports the Olicom OC-2135/2138, OC-2325 and
     OC-2326 10/100 TX UTP adapters and the Racore 8165 10/100baseTX and 8148
     10baseT/100baseTX/100baseFX multi-personality cards.

     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 Semiconductor
 DP83840A or other MII-compliant PHY may be attached to the ThunderLAN's
 MII bus.	If a DP83840A or equivalent is available, the ThunderLAN
 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
     support autonegotiation.

     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
			   built-in PHY).

     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).

DIAGNOSTICS    [Toc]    [Back]

     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.

SEE ALSO    [Toc]    [Back]

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

HISTORY    [Toc]    [Back]

     The tl device driver first appeared in FreeBSD 2.2.

AUTHORS    [Toc]    [Back]

     The tl driver was written by Bill Paul <wpaul@ctr.columbia.edu>.

FreeBSD 5.2.1			  May 1, 1998			 FreeBSD 5.2.1
[ Back ]
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