Tribblix: manual page: vr.4d

VR(4D) Devices VR(4D)

NAME

vr - driver for VIA Rhine fast Ethernet controllers

DESCRIPTION

The vr Fast Ethernet driver is GLD based and supporting the VIA Rhine
family of Fast Ethernet adapters:

pci1106,3043 VIA VT86C100A Fast Ethernet
pci1106,3065 VT6102 VIA Rhine II
pci1106,3106 VT6105 VIA Rhine III
pci1106,3053 VT6105 VIA Rhine III Management Adapter

The vr driver supports IEEE 802.3 auto-negotiation, flow control and
VLAN tagging.

Configuration

The default configuration is autonegotiation with bidirectional flow
control. The advertised capabilities for autonegotiation are based on
the capabilities of the PHY.

You can set the capabilities advertised by the vr controlled device
using dladm(8). The driver supports a number of parameters, the names
of which begin with en_ (enabled). Each of these boolean parameters
determines if the device advertises that mode of operation when the
hardware supports it.

The adv_autoneg_cap parameter controls whether auto-negotiation is
performed. If adv_autoneg_cap is 0, the driver selects the
speed/duplex combination from the first non-zero parameter from this
list:

en_100fdx_cap 100Mbps full duplex
en_100hdx_cap 100Mbps half duplex
en_10fdx_cap 10Mbps full duplex
en_10hdx_cap 10Mbps half duplex

All capabilities default to enabled. Changing any capability
parameter causes the link to go down while the link partners
renegotiate the link using the newly changed capabilities.

Limitations

The vr driver does not support asymmetric flowcontrol. VT86C100A and
Rhine II adapters are not capable of transmitting flowcontrol
messages

FILES

/dev/vr
Special character device

/kernel/drv/vr
32-bit device driver (x86)

/kernel/drv/sparcv9/vr
64-bit device driver (SPARC)

/kernel/drv/amd64/vr
64-bit device driver (x86)