man/man7d/vr.7d

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 VR 7D "May 5, 2009"
 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(1M). 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)


 ATTRIBUTES

See attributes(5) for a description of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Architecture SPARC, x86


 SEE ALSO

dladm(1M), netstat(1M), driver.conf(4), attributes(5),
ieee802.3(5), dlpi(7P), streamio(7I)

Writing Device Drivers

STREAMS Programmer's Guide

Network Interfaces Programmer's Guide

IEEE 802.3ae Specification - 2002