1.\" 2.\" Copyright (c) 2009 Marius Strobl <marius@FreeBSD.org> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd April 18, 2023 27.Dt CAS 4 28.Os 29.Sh NAME 30.Nm cas 31.Nd Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn Gigabit Ethernet driver 32.Sh SYNOPSIS 33To compile this driver into the kernel, 34place the following lines in your 35kernel configuration file: 36.Bd -ragged -offset indent 37.Cd "device miibus" 38.Cd "device cas" 39.Ed 40.Pp 41Alternatively, to load the driver as a 42module at boot time, place the following line in 43.Xr loader.conf 5 : 44.Bd -literal -offset indent 45if_cas_load="YES" 46.Ed 47.Sh DESCRIPTION 48The 49.Nm 50driver provides support for the Sun Cassini/Cassini+ and National 51Semiconductor DP83065 Saturn Gigabit Ethernet controllers. 52.Pp 53All controllers supported by the 54.Nm 55driver have TCP/UDP checksum offload capability for both receive and 56transmit, support for the reception and transmission of extended frames 57for 58.Xr vlan 4 59and an interrupt coalescing/moderation mechanism as well as a 512-bit 60multicast hash filter. 61.Pp 62The 63.Nm 64driver also supports Jumbo Frames (up to 9022 bytes), which can be 65configured via the interface MTU setting. 66Selecting an MTU larger than 1500 bytes with the 67.Xr ifconfig 8 68utility configures the adapter to receive and transmit Jumbo Frames. 69.Sh HARDWARE 70The chips supported by the 71.Nm 72driver are: 73.Pp 74.Bl -bullet -compact 75.It 76National Semiconductor DP83065 Saturn Gigabit Ethernet 77.It 78Sun Cassini Gigabit Ethernet 79.It 80Sun Cassini+ Gigabit Ethernet 81.El 82.Pp 83The 84following add-on cards are known to work with the 85.Nm 86driver at this time: 87.Pp 88.Bl -bullet -compact 89.It 90Sun GigaSwift Ethernet 1.0 MMF (Cassini Kuheen) 91(part no.\& 501-5524) 92.It 93Sun GigaSwift Ethernet 1.0 UTP (Cassini) 94(part no.\& 501-5902) 95.It 96Sun GigaSwift Ethernet UTP (GCS) 97(part no.\& 501-6719) 98.It 99Sun Quad GigaSwift Ethernet UTP (QGE) 100(part no.\& 501-6522) 101.It 102Sun Quad GigaSwift Ethernet PCI-X (QGE-X) 103(part no.\& 501-6738) 104.El 105.Sh SEE ALSO 106.Xr altq 4 , 107.Xr miibus 4 , 108.Xr netintro 4 , 109.Xr vlan 4 , 110.Xr ifconfig 8 111.Sh HISTORY 112The 113.Nm 114device driver appeared in 115.Fx 8.0 116and 117.Fx 7.3 . 118It is named after the 119.Nm 120driver which first appeared in 121.Ox 4.1 122and supports the same set of controllers but is otherwise unrelated. 123.Sh AUTHORS 124.An -nosplit 125The 126.Nm 127driver was written by 128.An Marius Strobl Aq Mt marius@FreeBSD.org 129based on the 130.Xr gem 4 131driver. 132