NAME

cnmac — Cavium OCTEON built-in Ethernet device

SYNOPSIS

cnmac* at cn30xxgmx?

DESCRIPTION

The cnmac driver supports built-in Ethernet ports on Cavium OCTEON CN30xx, Cavium OCTEON Plus CN50xx, Cavium OCTEON II CN61xx, and Cavium OCTEON III CN71xx system on chips. Among the routers based on these chips are the following:

• D-Link DSR-500
• Portwell CAM-0100
• Rhino Labs Inc. SDNA Shasta
• Ubiquiti Networks EdgeRouter
• Ubiquiti Networks EdgeRouter 4
• Ubiquiti Networks EdgeRouter 6
• Ubiquiti Networks EdgeRouter LITE
• Ubiquiti Networks EdgeRouter PoE
• Ubiquiti Networks EdgeRouter PRO

The cnmac driver supports TCP/UDP checksum offload on IPv4/IPv6 reception and transmission, and IPv4 checksum offload on reception. The driver additionally supports jumbo frames.

SEE ALSO

arp(4), ifmedia(4), intro(4), netintro(4), hostname.if(5), ifconfig(8)

HISTORY

The cnmac driver first appeared in OpenBSD 5.4.

AUTHORS

The cnmac driver was written by Internet Initiative Japan Inc.