OpenBSD Handbook Manuals
Search

nep(4)

Canonical URL: /nep.4/

NEP(4) Device Drivers Manual NEP(4)

nep — Sun Neptune 10Gb Ethernet device

nep* at pci?
brgphy* at mii?

The nep driver provides support for various NICs based on the Sun Neptune Ethernet controller chips, including the following:

  • Sun Quad GbE UTP x8 PCI Express Card
  • Sun Quad GbE UTP x8 PCIe ExpressModule

It uses an internal or external PHY or an external 10-bit interface.

The nep driver supports several media types, which are selected via the ifconfig(8) command. The supported media types are:

autoselect
Attempt to autoselect the media type (default)
1000baseT mediaopt full-duplex
Use 1000baseT on copper, full duplex
1000baseT mediaopt half-duplex
Use 1000baseT on copper, half duplex
100baseTX mediaopt full-duplex
Use 100baseTX, full duplex
100baseTX mediaopt half-duplex
Use 100baseTX, half duplex

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

OpenBSD support for nep first appeared in OpenBSD 5.7.

The nep driver was written by Mark Kettenis <kettenis@openbsd.org>.

The nep driver currently only supports 1Gb Ethernet NICs. It also does not yet use many of the advanced features the Neptune chip offers.

OpenBSD 7.8 September 7, 2022 NEP(4)

Need conceptual guidance? Continue in the OpenBSD Handbook.