MII(4) | Device Drivers Manual | MII(4)

# 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`
`ipgphy* at mii? phy ? # IC PLUS IP1000A/IP1001 PHYs`
`jmphy* at mii? phy ? # JMicron`
`lxtphy* at mii? phy ? # Level One LXT-970 PHYs`
`makphy* at mii? phy ? # Marvel 88E1000 Gig-E PHYs`
`micphy* at mii? phy ? # Micrel KSZ9021 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`
`smscphy* at mii? phy ? # SMSC LAN87xx 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), jmphy(4), lxtphy(4), makphy(4), micphy(4), nsphy(4), nsphyter(4), pnaphy(4), qsphy(4), rgephy(4), rlphy(4), smscphy(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

November 2, 2019 | NetBSD 11.99