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CNMAC(4) Device Drivers Manual (octeon) CNMAC(4)

cnmacCavium OCTEON built-in Ethernet device

cnmac* at cn30xxgmx?

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

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

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

The cnmac driver first appeared in OpenBSD 5.4.

The cnmac driver was written by Internet Initiative Japan Inc.

July 11, 2016 OpenBSD-6.0