gem(4) - OpenBSD manual pages (original) (raw)

NAME

gem —GEM 10/100/1Gb Ethernet device

SYNOPSIS

gem* at pci?
gem* at sbus?
bmtphy* at mii?
brgphy* at mii?
eephy* at mii?
gentbi* at mii?
luphy* at mii?
lxtphy* at mii?

DESCRIPTION

The gem driver provides support for various NICs based on the GEM Ethernet controller chips, including the following:

• Apple GMAC (10/100/1000baseT)
• Sun ERI (10/100baseT)
• Sun GEM (10/100/1000baseT)
• Sun GEM (1000baseSX)

It uses an external PHY or an external 10-bit interface.

The gem driver supports several media types, which are selected via theifconfig(8) command. The supported media types are:

media autoselect

Attempt to autoselect the media type (default)

media 1000baseT mediaopt full-duplex

Use 1000baseT on copper, full duplex

media 1000baseT mediaopt half-duplex

Use 1000baseT on copper, half duplex

media 1000baseSX mediaopt full-duplex

Use 1000baseSX on fiber, full duplex

media 1000baseSX mediaopt half-duplex

Use 1000baseSX on fiber, half duplex

media 100baseTX mediaopt full-duplex

Use 100baseTX, full duplex

media 100baseTX mediaopt half-duplex

Use 100baseTX, half duplex

media 10baseT mediaopt full-duplex

Use 10baseT, full duplex

media 10baseT mediaopt half-duplex

Use 10baseT, half duplex

SEE ALSO

arp(4), bmtphy(4), brgphy(4), eephy(4), gentbi(4), ifmedia(4), inet(4), intro(4), luphy(4), lxtphy(4),netintro(4),hostname.if(5),ifconfig(8)

HISTORY

OpenBSD support forgem first appeared in OpenBSD 3.0.