NAME

mii — IEEE 802.3 Media Independent Interface network bus

SYNOPSIS

acphy* at mii? phy ? # Altima AC101 10/100 PHY
amhphy* at mii? phy ? # AMD 79c901 PHY (10BASE-T part)
bmtphy* at mii? phy ? # Broadcom BCM5201/5202 PHYs
brgphy* at mii? phy ? # Broadcom BCM5400/5401 Gig-E PHYs
ciphy* at mii? phy ? # Cicada CS8201 Gig-E PHYs
dmphy* at mii? phy ? # Davicom DM9101 PHYs
exphy* at mii? phy ? # 3Com internal PHYs
gentbi* at mii? phy ? # Generic ten-bit 1000BASE-X PHYs
glxtphy* at mii? phy ? # Level One LXT-1000 Gig-E PHYs
gphyter* at mii? phy ? # NatSemi DP83861 Gig-E PHYs
icsphy* at mii? phy ? # Integrated Circuit Systems ICS1890 PHYs
ikphy* at mii? phy ? # Intel 82563 PHYs
inphy* at mii? phy ? # Intel 82555 PHYs
iophy* at mii? phy ? # Intel 82553 PHYs
lxtphy* at mii? phy ? # Level One LXT-970 PHYs
makphy* at mii? phy ? # Marvel 88E1000 Gig-E PHYs
nsphy* at mii? phy ? # NatSemi DP83840 PHYs
nsphyter* at mii? phy ? # NatSemi DP83843/DP83815 PHYs
pnaphy* at mii? phy ? # Generic HomePNA PHYs
qsphy* at mii? phy ? # Quality Semiconductor QS6612 PHYs
rgephy* at mii? phy ? # Realtek 8169S/8110S internal PHYs
rlphy* at mii? phy ? # Realtek 8139/8201L PHYs
sqphy* at mii? phy ? # Seeq 80220/80221/80223/80225 PHYs
tlphy* at mii? phy ? # ThunderLAN internal PHYs
tqphy* at mii? phy ? # TSC Semiconductor 78Q2120 PHYs
ukphy* at mii? phy ? # Generic/unknown PHYs
urlphy* at mii? phy ? # Realtek RTL8150L internal PHYs

options MIIVERBOSE

DESCRIPTION

Media Independent Interface is an IEEE standard serial bus for connecting MACs (network controllers) to PHYs (physical media interfaces). The mii layer allows network device drivers to share support code for various PHY models, and allows unused support for PHYs which are not present in a system to be removed from the kernel.

Network device drivers which use the mii layer carry the “mii” autoconfiguration attribute. This allows kernel configuration files to simply specify PHYs as described above in the synopsis.

The following is an example of the messages displayed when a network interface with an attached PHY is detected by the kernel:

epic0 at pci0 dev 12 function 0: SMC EPIC/100 Fast Ethernet 
epic0: interrupting at kn20aa irq 4 
epic0: SMC9432TX, Ethernet address 00:e0:29:07:17:c4 
qsphy0 at epic0 phy 3: QS6612 10/100 media interface, rev. 1 
qsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

All PHY drivers display the media types supported by the PHY when it is detected by the kernel. These media types are valid media keywords for use with the ifconfig(8) program.

SEE ALSO

acphy(4), amhphy(4), bmtphy(4), brgphy(4), ciphy(4), dmphy(4), exphy(4), gentbi(4), glxtphy(4), gphyter(4), icsphy(4), ifmedia(4), ikphy(4), inphy(4), iophy(4), lxtphy(4), makphy(4), nsphy(4), nsphyter(4), pnaphy(4), qsphy(4), rgephy(4), rlphy(4), sqphy(4), tlphy(4), tqphy(4), ukphy(4), urlphy(4), ifconfig(8)

The OUI assignments list can be found at:

http://standards.ieee.org/regauth/oui/index.shtml