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if_cas.4freebsd

Langue: en

Version: 361754 (ubuntu - 24/10/10)

Section: 4 (Pilotes et protocoles réseau)


BSD mandoc

NAME

cas - Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn Gigabit Ethernet driver

SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:
device miibus device cas

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:

 if_cas="YES"
 

DESCRIPTION

The 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.

All controllers supported by the driver have TCP/UDP checksum offload capability for both receive and transmit, support for the reception and transmission of extended frames for vlan(4) and an interrupt coalescing/moderation mechanism as well as a 512-bit multicast hash filter.

The 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 ifconfig(8) utility configures the adapter to receive and transmit Jumbo Frames.

HARDWARE

The chips supported by the driver are:

The following add-on cards are known to work with the driver at this time:

NOTES

On sparc64 the driver respects the local-mac-address? system configuration variable which can be set in the Open Firmware boot monitor using the setenv command or by eeprom(8). If set to ``false '' (the default), the driver will use the system's default MAC address for all of its devices. If set to ``true '' the unique MAC address of each interface is used if present rather than the system's default MAC address.

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.

SEE ALSO

altq(4), miibus(4), netintro(4), vlan(4), eeprom(8), ifconfig(8)

HISTORY

The device driver appeared in Fx 8.0 and Fx 7.3 . It is named after the driver which first appeared in Ox 4.1 and supports the same set of controllers but is otherwise unrelated.

AUTHORS

An -nosplit The driver was written by An Marius Strobl Aq marius@FreeBSD.org based on the gem(4) driver.
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