Copyright (c) 2009 Marius Strobl <marius@FreeBSD.org>
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$FreeBSD: releng/11.0/share/man/man4/cas.4 267938 2014-06-26 21:46:14Z bapt $
.Dd March 24, 2012 .Dt CAS 4 .Os .Sh NAME .Nm cas .Nd Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn Gigabit Ethernet driver .Sh SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: d -ragged -offset indent .Cd "device miibus" .Cd "device cas" .Ed
p Alternatively, to load the driver as a module at boot time, place the following line in .Xr loader.conf 5 : d -literal -offset indent if_cas_load="YES" .Ed .Sh DESCRIPTION The .Nm driver provides support for the Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn Gigabit Ethernet controllers found on-board in Sun UltraSPARC machines and as add-on cards.
p All controllers supported by the .Nm driver have TCP/UDP checksum offload capability for both receive and transmit, support for the reception and transmission of extended frames for .Xr vlan 4 and an interrupt coalescing/moderation mechanism as well as a 512-bit multicast hash filter.
p The .Nm driver also supports Jumbo Frames (up to 9022 bytes), which can be configured via the interface MTU setting. Selecting an MTU larger than 1500 bytes with the .Xr ifconfig 8 utility configures the adapter to receive and transmit Jumbo Frames. .Sh HARDWARE The chips supported by the .Nm driver are:
p l -bullet -compact t National Semiconductor DP83065 Saturn Gigabit Ethernet t Sun Cassini Gigabit Ethernet t Sun Cassini+ Gigabit Ethernet .El
p The following add-on cards are known to work with the .Nm driver at this time:
p l -bullet -compact t Sun GigaSwift Ethernet 1.0 MMF (Cassini Kuheen) (part no. 501-5524) t Sun GigaSwift Ethernet 1.0 UTP (Cassini) (part no. 501-5902) t Sun GigaSwift Ethernet UTP (GCS) (part no. 501-6719) t Sun Quad GigaSwift Ethernet UTP (QGE) (part no. 501-6522) t Sun Quad GigaSwift Ethernet PCI-X (QGE-X) (part no. 501-6738) .El .Sh NOTES On sparc64 the .Nm driver respects the .Va local-mac-address? system configuration variable which can be set in the Open Firmware boot monitor using the c setenv command or by .Xr eeprom 8 . If set to .Dq Li false (the default), the .Nm driver will use the system's default MAC address for all of its devices. If set to .Dq Li true , the unique MAC address of each interface is used if present rather than the system's default MAC address.
p Supported interfaces having their own MAC address include on-board versions on boards equipped with more than one Ethernet interface and all add-on cards. .Sh SEE ALSO .Xr altq 4 , .Xr miibus 4 , .Xr netintro 4 , .Xr vlan 4 , .Xr eeprom 8 , .Xr ifconfig 8 .Sh HISTORY The .Nm device driver appeared in .Fx 8.0 and .Fx 7.3 . It is named after the .Nm driver which first appeared in .Ox 4.1 and supports the same set of controllers but is otherwise unrelated. .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Marius Strobl Aq Mt marius@FreeBSD.org based on the .Xr gem 4 driver.