1.\" $OpenBSD: cas.4,v 1.10 2022/03/21 14:56:16 miod Exp $ 2.\" 3.\" Copyright (c) 2007 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: March 21 2022 $ 18.Dt CAS 4 19.Os 20.Sh NAME 21.Nm cas 22.Nd Sun Cassini 10/100/1Gb Ethernet device 23.Sh SYNOPSIS 24.Cd "cas* at pci?" 25.Cd "brgphy* at mii?" 26.Cd "gentbi* at mii?" 27.Cd "nsgphy* at mii?" 28.Sh DESCRIPTION 29The 30.Nm 31driver provides support for various NICs based on the Sun 32Cassini/Cassini+ and National Semiconductor Saturn Ethernet controller 33chips, including the following: 34.Pp 35.Bl -bullet -compact -offset indent 36.It 37Sun GigaSwift Ethernet Adapter (10/100/1000baseT) 38.It 39Sun GigaSwift Ethernet MMF Adapter (1000baseSX) 40.It 41Sun Quad GigaSwift Ethernet UTP Adapter (10/100/1000baseT) 42.It 43Sun Quad GigaSwift PCI-X Adapter (10/100/1000baseT) 44.It 45Sun Dual Gigabit Ethernet and Dual SCSI/P Adapter (10/100/1000baseT) 46.El 47.Pp 48It uses an internal or external PHY or an external 10-bit interface. 49.Pp 50The 51.Nm 52driver supports several media types, which are selected via the 53.Xr ifconfig 8 54command. 55The supported media types are: 56.Bl -tag -width "media" -offset indent 57.It Cm media No autoselect 58Attempt to autoselect the media type (default) 59.It Cm media No 1000baseT Cm mediaopt No full-duplex 60Use 1000baseT on copper, full duplex 61.It Cm media No 1000baseT Cm mediaopt No half-duplex 62Use 1000baseT on copper, half duplex 63.It Cm media No 1000baseSX Cm mediaopt No full-duplex 64Use 1000baseSX on fiber, full duplex 65.It Cm media No 1000baseSX Cm mediaopt No half-duplex 66Use 1000baseSX on fiber, half duplex 67.It Cm media No 100baseTX Cm mediaopt No full-duplex 68Use 100baseTX, full duplex 69.It Cm media No 100baseTX Cm mediaopt No half-duplex 70Use 100baseTX, half duplex 71.It Cm media No 10baseT Cm mediaopt No full-duplex 72Use 10baseT, full duplex 73.It Cm media No 10baseT Cm mediaopt No half-duplex 74Use 10baseT, half duplex 75.El 76.Sh SEE ALSO 77.Xr arp 4 , 78.Xr brgphy 4 , 79.Xr gentbi 4 , 80.Xr ifmedia 4 , 81.Xr inet 4 , 82.Xr intro 4 , 83.Xr netintro 4 , 84.Xr nsgphy 4 , 85.Xr hostname.if 5 , 86.Xr ifconfig 8 87.Sh HISTORY 88.Ox 89support for 90.Nm 91first appeared in 92.Ox 4.1 . 93.Sh AUTHORS 94The 95.Nm 96driver was written by 97.An Mark Kettenis Aq Mt kettenis@openbsd.org 98based on the 99.Xr gem 4 100driver. 101.Sh BUGS 102The 103.Nm 104driver does not yet use many of the advanced features the Cassini chip 105offers. 106