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 the ifconfig(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 for gem first appeared in OpenBSD 3.0.