cad(4)

cad4

Cadence 10/100/1gb ethernet device

Usage

cad* at fdt?

Overview

The cad driver supports the Cadence Gigabit Ethernet MAC core found on some SoCs, including the following:

  • Microchip PolarFire SoC

  • SiFive FU740-C000

  • Xilinx Zynq-7000

The cad driver supports IPv4 receive IP/TCP/UDP checksum offload, and IPv6 receive TCP/UDP checksum offload.

The following media types and options are supported, as given to ifconfig(8):

media autoselect

Use auto-negotiation for speed and duplex (default).

media 1000baseT mediaopt full-duplex

Use 1000baseT on copper, full duplex.

media 100baseTX mediaopt full-duplex

Use 100baseTX on copper, full duplex.

media 100baseTX mediaopt half-duplex

Use 100baseTX on copper, half duplex.

media 10baseT mediaopt full-duplex

Use 10baseT on copper, full duplex.

media 10baseT mediaopt half-duplex

Use 10baseT on copper, half duplex.

Releases

12 releases since OpenBSD 7.0; the text changed 1 time.

  1. 7.0
  2. 7.1–8.0

History

The cad driver first appeared in OpenBSD 7.0

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.