155 lines
4.1 KiB
Groff
155 lines
4.1 KiB
Groff
.\"
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.\" Copyright (c) 2009 Marius Strobl <marius@FreeBSD.org>
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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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.\"
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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 June 15, 2009
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.Dt CAS 4
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.Os
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.Sh NAME
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.Nm cas
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.Nd Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn Gigabit 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 lines in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device miibus"
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.Cd "device cas"
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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_cas="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 Sun Cassini/Cassini+ and National
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Semiconductor DP83065 Saturn Gigabit Ethernet controllers found
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on-board in Sun UltraSPARC machines and as add-on cards.
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.Pp
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All controllers supported by the
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.Nm
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driver have TCP/UDP checksum offload capability for both receive and
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transmit, support for the reception and transmission of extended frames
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for
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.Xr vlan 4
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and an interrupt coalescing/moderation mechanism as well as a 512-bit
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multicast hash filter.
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.Pp
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The
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.Nm
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driver also supports Jumbo Frames (up to 9022 bytes), which can be
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configured 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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.Sh HARDWARE
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.Pp
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The chips supported by the
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.Nm
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driver are:
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.Pp
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.Bl -bullet -compact
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.It
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National Semiconductor DP83065 Saturn Gigabit Ethernet
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.It
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Sun Cassini Gigabit Ethernet
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.It
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Sun Cassini+ Gigabit Ethernet
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.El
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.Pp
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The
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following add-on cards are known to work with the
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.Nm
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driver at this time:
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.Pp
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.Bl -bullet -compact
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.It
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Sun GigaSwift Ethernet 1.0 UTP (Cassini)
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(part no.\& 501-5902)
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.It
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Sun GigaSwift Ethernet UTP (GCS)
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(part no.\& 501-6719)
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.It
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Sun Quad GigaSwift Ethernet UTP (QGE)
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(part no.\& 501-6522)
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.El
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.Sh NOTES
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On sparc64 the
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.Nm
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driver respects the
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.Va local-mac-address?
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system configuration variable which can be set in the Open Firmware boot
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monitor using the
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.Ic setenv
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command or by
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.Xr eeprom 8 .
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If set to
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.Dq Li false
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(the default), the
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.Nm
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driver will use the system's default MAC address for all of its devices.
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If set to
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.Dq Li true ,
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the unique MAC address of each interface is used if present rather than
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the system's default MAC address.
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.Pp
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Supported interfaces having their own MAC address include on-board
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versions on boards equipped with more than one Ethernet interface and
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all add-on cards.
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.Sh SEE ALSO
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.Xr altq 4 ,
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.Xr miibus 4 ,
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.Xr netintro 4 ,
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.Xr vlan 4 ,
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.Xr eeprom 8 ,
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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 appeared in
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.Fx 8.0
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and
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.Fx 7.3 .
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It is named after the
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.Nm
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driver which first appeared in
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.Ox 4.1
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and supports the same set of controllers but is otherwise unrelated.
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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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driver was written by
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.An Marius Strobl
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.Aq marius@FreeBSD.org
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based on the
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.Xr gem 4
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driver.
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