DragonFly On-Line Manual Pages

MIIBUS(4)	      DragonFly Kernel Interfaces Manual	     MIIBUS(4)


miibus -- IEEE 802.3 Media Independent Interface network bus


For most network interface cards (NIC): device miibus


The miibus driver provides an interconnection between the Media Access Control (MAC) sublayer, the Physical Layer entities (PHY), Station Man- agement (STA) entities, and the PHY Layer as defined by the IEEE 802.3 Standard. The miibus layer allows network device drivers to share common support code for various external PHY devices. Most 10/100 network interface cards either use an MII transceiver or have built-in transceivers that can be programmed using an MII interface. The miibus driver currently handles all of the media detection, selection, and reporting using the ifmedia(4) interface. A generic driver has been included for all PHYs that are not handled by a specific driver, this is possible because all 10/100 PHYs implement the same general register set along with their ven- dor specific register set. The following network device drivers use the miibus interface: aue(4) ADMtek USB Ethernet axe(4) ASIX Electronics AX88172 USB Ethernet bce(4) Broadcom BCM5706/BCM5708 Gigabit Ethernet bfe(4) Broadcom BCM440x 10/100 Ethernet bge(4) Broadcom BCM570xx Gigabit Ethernet dc(4) DEC/Intel 21143 and various workalikes ed(4) NE[12]000, SMC Ultra, 3c503, DS8390 cards et(4) Agere ET1310 10/100/1000 Ethernet fxp(4) Intel EtherExpress PRO/100B jme(4) JMicron Gigabit Ethernet lge(4) Level 1 LXT1001 NetCellerator Gigabit Ethernet msk(4) Marvell/SysKonnect Yukon II Gigabit Ethernet nfe(4) NVIDIA nForce MCP 10/100/Gigabit Ethernet nge(4) National Semiconductor DP83820/DP83821 Gigabit Ethernet pcn(4) AMD Am79C97x PCI 10/100 re(4) RealTek 8139C+/8169/8169S/8110S rl(4) RealTek 8129/8139 rue(4) RealTek RTL8150 USB To Fast Ethernet sf(4) Adaptec AIC-6915 sis(4) Silicon Integrated Systems SiS 900/SiS 7016 sk(4) SysKonnect SK-984x and SK-982x Gigabit Ethernet ste(4) Sundance ST201 (D-Link DFE-550TX) stge(4) Sundance/Tamarack TC9021 Gigabit Ethernet tl(4) Texas Instruments ThunderLAN tx(4) SMC EtherPower II (83c170) vge(4) VIA Networking Technologies VT6122 PCI Gigabit Ethernet vr(4) VIA Rhine, Rhine II wb(4) Winbond W89C840F xl(4) 3Com 3c90x


The implementation of miibus was originally intended to have similar API interfaces to BSD/OS 3.0 and NetBSD, but as a result are not well behaved newbus device drivers.


arp(4), aue(4), axe(4), bce(4), bfe(4), bge(4), dc(4), ed(4), et(4), fxp(4), jme(4), lge(4), msk(4), netintro(4), nfe(4), nge(4), pcn(4), re(4), rl(4), rue(4), sf(4), sis(4), sk(4), ste(4), stge(4), tl(4), tx(4), vge(4), vr(4), wb(4), xl(4)


More information on MII can be found in the IEEE 802.3 Standard.


The miibus driver first appeared in FreeBSD 3.3.


This manual page was written by Tom Rhodes <trhodes@FreeBSD.org>. DragonFly 3.9 July 26, 2008 DragonFly 3.9