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155 lines
4.5 KiB
Groff
155 lines
4.5 KiB
Groff
.\" Copyright (c) 1997, 1998, 1999, 2000-2003
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.\" Bill Paul <wpaul@windriver.com>. 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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.\" $FreeBSD$
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.\"
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.Dd April 20, 2003
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.Dt AXE 4
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.Os
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.Sh NAME
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.Nm axe
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.Nd ASIX Electronics AX88172 USB Ethernet driver
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.Sh SYNOPSIS
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.Cd "device ehci"
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.Cd "device uhci"
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.Cd "device ohci"
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.Cd "device usb"
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.Cd "device miibus"
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.Cd "device axe"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for USB ethernet adapters based on the ASIX
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Electronics AX88172 USB 2.0 chipset, including the following:
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.Pp
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.Bl -bullet -compact
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.It
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Buffalo(MELCO) LUA-U2-KTX
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.It
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D-Link DUBE100
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.It
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LinkSys USB200M
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.It
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Netgear FA120
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.El
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.Pp
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The AX88172 is a USB 2.0 device which contains a 10/100
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ethernet MAC with MII interface and is designed to work with both
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ethernet and HomePNA transceivers.
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The AX88172 will operate with
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both USB 1.x and USB 2.0 controllers, however performance with 1.x
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controllers will be limited since the USB 1.x standard specifies a
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maximum transfer speed of 12Mbps.
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Users with USB 1.x controllers should therefore not expect to actually
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achieve 100Mbps speeds with these devices.
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.Pp
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The AX88172 supports a 64-bit multicast hash table, single perfect
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filter entry for the station address, all-multicast mode and promiscuous mode.
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Packets are
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received and transmitted over separate USB bulk transfer endpoints.
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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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.Bl -tag -width ".Cm 10baseT/UTP"
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.It Cm autoselect
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Enable autoselection of the media type and options.
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The user can manually override
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the autoselected mode by adding media options to the
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.Pa /etc/rc.conf
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file.
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.It Cm 10baseT/UTP
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Set 10Mbps operation.
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The
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.Cm mediaopt
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option can also be used to enable
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.Cm full-duplex
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operation.
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Not specifying
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.Cm full-duplex
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implies
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.Cm half-duplex
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mode.
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.It Cm 100baseTX
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Set 100Mbps (fast ethernet) operation.
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The
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.Cm mediaopt
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option can also be used to enable
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.Cm full-duplex
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operation.
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Not specifying
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.Cm full-duplex
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implies
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.Cm half-duplex
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mode.
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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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.Bl -tag -width ".Cm 10baseT/UTP"
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.It Cm full-duplex
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Force full duplex operation.
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The interface will operate in
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half duplex mode if this media option is not specified.
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.El
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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 "axe%d: watchdog timeout"
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A packet was queued for transmission and a transmit command was
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issued, however the device failed to acknowledge the transmission
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before a timeout expired.
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.It "axe%d: no memory for rx list"
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The driver failed to allocate an mbuf for the receiver ring.
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.El
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr miibus 4 ,
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.Xr netintro 4 ,
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.Xr ng_ether 4 ,
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.Xr ifconfig 8
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.Rs
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.%T "ASIX AX88172 data sheet"
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.%O http://www.asix.com.tw
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.Re
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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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.Fx 5.0 .
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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@windriver.com .
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