222dc69183
support. Fix a comment block that's shared with both vx and ep. Remove obsolete refernce to statically compiling a kernel with a fixed number of vx devices. Have not removed EISA from the title of the document the register definitions were originally derived from (though no doubt more recent docments were also consulted).
129 lines
3.8 KiB
Groff
129 lines
3.8 KiB
Groff
.\"
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.\" Copyright (c) 1996, Fred Gray
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.\" 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 David Greenman.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd February 15, 2017
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.Dt VX 4 i386
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.Os
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.Sh NAME
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.Nm vx
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.Nd "3Com EtherLink III / Fast EtherLink III (3c59x) Ethernet driver"
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following line in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device vx"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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if_vx_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the 3Com
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.Dq Vortex
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chipset.
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.Pp
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The medium selection
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can be influenced by the following link flags to the
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.Xr ifconfig 8
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command:
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.Pp
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.Bl -tag -width LINK0X -compact
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.It Em link0
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Use the AUI port.
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.It Em link1
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Use the BNC port.
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.It Em link2
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Use the UTP port.
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.El
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.Sh HARDWARE
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The
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.Nm
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driver supports the following cards:
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.Pp
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.Bl -bullet -compact
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.It
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3Com 3c590 EtherLink III PCI
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.It
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3Com 3c595 Fast EtherLink III PCI in 10 Mbps mode
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.El
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.Sh DIAGNOSTICS
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All other diagnostics indicate either a hardware problem or a bug in the
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driver.
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.Sh SEE ALSO
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.Xr arp 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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.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 2.1 .
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It was derived from the
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.Nm ep
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driver, from which it inherits most of its limitations.
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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device driver and this manual page were written by
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.An Fred Gray Aq Mt fgray@rice.edu ,
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based on the work of
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.An Herb Peyerl
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and with the assistance of numerous others.
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.Sh CAVEATS
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Some early-revision 3c590 cards are defective and suffer from many receive
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overruns, which cause lost packets.
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The author has attempted to implement
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a test for it based on the information supplied by 3Com, but the test resulted
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mostly in spurious warnings.
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.Pp
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The performance of this driver is somewhat limited by the fact that it uses
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only polled-mode I/O and does not make use of the bus-mastering capability
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of the cards.
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.Sh BUGS
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The
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.Nm
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driver is known not to reset the adapter correctly following a warm boot
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on some systems.
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.Pp
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The
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.Nm
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driver has not been exhaustively tested with all the models of cards that it
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claims to support.
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