220 lines
6.8 KiB
Groff
220 lines
6.8 KiB
Groff
.\" $NetBSD: ti.4,v 1.11 2006/04/25 06:24:57 wiz Exp $
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.\"
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.\" Copyright (c) 1997, 1998, 1999
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.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Bill Paul.
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.\" 4. Neither the name of the author nor the names of any co-contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" FreeBSD Id: src/share/man/man4/ti.4,v 1.5 2000/01/23 16:13:24 asmodai Exp
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.\"
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.Dd June 2, 2001
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.Dt TI 4
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.Os
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.Sh NAME
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.Nm ti
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.Nd
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Alteon Networks Tigon I and Tigon II gigabit
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.Tn Ethernet
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driver
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.Sh SYNOPSIS
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.Cd "ti* at pci? dev ? function ?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for PCI gigabit
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.Tn Ethernet
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adapters based on the Alteon Networks Tigon gigabit
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.Tn Ethernet
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controller chip.
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The Tigon contains an embedded R4000 CPU, gigabit MAC, dual DMA channels
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and a PCI interface unit.
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The Tigon II contains two R4000 CPUs and other refinements.
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Either chip can be used in either a 32-bit or 64-bit PCI slot.
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Communication with the chip is achieved via PCI shared memory
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and bus master DMA.
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The Tigon I and II support hardware multicast address filtering,
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VLAN tag extraction and insertion, and jumbo
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.Tn Ethernet
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frames sizes up to 9000 bytes.
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Note that the Tigon I chipset is no longer in active production:
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all new adapters should come equipped with Tigon II chipsets.
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.Pp
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There are several PCI boards available from both Alteon and other
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vendors that use the Tigon chipset under OEM contract.
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The
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.Nm
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driver has been tested with the following Tigon-based adapters:
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.Bl -bullet -offset indent
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.It
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The Alteon AceNIC V gigabit (1000BASE-SX and 1000BASE-T variants)
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.Tn Ethernet
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adapter
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.It
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The 3Com 3c985-SX gigabit
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.Tn Ethernet
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adapter
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.It
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The Netgear GA620 gigabit (1000BASE-SX and 1000BASE-T variants)
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.Tn Ethernet
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adapter
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.It
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The Digital EtherWORKS 1000SX PCI Gigabit Adapter (DEGPA)
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.El
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.Pp
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The following should also be supported but have not yet been tested:
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.Bl -bullet -offset indent
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.It
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Silicon Graphics PCI gigabit
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.Tn Ethernet
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adapter
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.El
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.Pp
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While the Tigon chipset supports 10, 100 and 1000Mbps speeds, support for
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10 and 100Mbps speeds is only available on boards with the proper
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transceivers.
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Most adapters are only designed to work at 1000Mbps, however the driver
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should support those NICs that work at lower speeds as well.
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.Pp
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Support for jumbo frames is provided via the interface MTU setting.
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Selecting an MTU larger than 1500 bytes with the
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.Xr ifconfig 8
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utility configures the adapter to receive and transmit jumbo frames.
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Using jumbo frames can greatly improve performance for certain tasks,
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such as file transfers and data streaming.
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.Pp
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The
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.Nm
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driver supports the following media types:
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.Pp
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.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
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.It autoselect
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Enable autoselection of the media type and options.
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.It 10baseT/UTP
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Set 10Mbps operation.
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The
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.Ar mediaopt
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option can also be used to select either
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.Ar full-duplex
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or
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.Ar half-duplex modes .
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.It 100baseTX
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Set 100Mbps (fast
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.Tn Ethernet )
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operation.
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The
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.Ar mediaopt
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option can also be used to select either
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.Ar full-duplex
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or
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.Ar half-duplex
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modes.
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.It 1000baseSX
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Set 1000Mbps (gigabit
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.Tn Ethernet over multimode fiber ) operation.
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Only full
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.Ar full-duplex
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mode is supported at this speed.
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.It 1000baseT
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Set 1000Mbps (gigabit
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.Tn Ethernet over twisted pair ) operation.
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Only full
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.Ar full-duplex
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mode is supported at this speed.
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.El
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.Pp
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The
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.Nm
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driver supports the following media options:
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.Pp
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.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
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.It full-duplex
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Force full duplex operation.
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.It half-duplex
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Force half duplex operation.
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.El
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.Pp
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The Alteon Tigon and Tigon II support IPv4/TCP/UDP checksumming in
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hardware.
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The
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.Nm
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supports this feature of the chip's firmware.
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See
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.Xr ifconfig 8
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for information on how to enable this feature.
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.Pp
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For more information on configuring this device, see
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.Xr ifconfig 8 .
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "ti%d: can't map memory space"
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A fatal initialization error has occurred.
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.It "ti%d: couldn't map / establish interrupt"
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A fatal initialization error has occurred.
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.It "ti%d: jumbo buffer allocation failed"
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The driver failed to allocate memory for jumbo frames during
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initialization.
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.It "ti%d: bios thinks we're in a 64 bit slot, but we aren't"
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The BIOS has programmed the NIC as though it had been installed in
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a 64-bit PCI slot, but in fact the NIC is in a 32-bit slot.
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This happens as a result of a bug in some BIOSes.
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This can be worked around on the Tigon II, but on the Tigon I
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initialization will fail.
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.It "ti%d: board self-diagnostics failed!"
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The ROMFAIL bit in the CPU state register was set after system
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startup, indicating that the on-board NIC diagnostics failed.
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.It "ti%d: unknown hwrev"
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The driver detected a board with an unsupported hardware revision.
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The
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.Nm
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driver supports revision 4 (Tigon 1) and revision 6 (Tigon 2) chips
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and has firmware only for those devices.
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.It "ti%d: watchdog timeout"
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The device has stopped responding to the network, or there is a problem with
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the network connection (cable).
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.El
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.Sh SEE ALSO
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.Xr netintro 4 ,
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.Xr pci 4 ,
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.Xr ifconfig 8
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Nx 1.4.2 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by
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.An Bill Paul Aq wpaul@ctr.columbia.edu .
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.Sh BUGS
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The driver currently tries to access some on-board memory transparently.
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This mapping (BUS_SPACE_MAP_LINEAR) fails on systems where the corresponding
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PCI memory range is located in "sparse" space only.
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.Pp
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This driver currently does not work on big-endian systems.
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