IGC(4D) Devices IGC(4D)

NAME

igc - Intel I225/I226 Ethernet Driver

SYNOPSIS

/dev/net/igc*

DESCRIPTION

The igc driver is a GLDv3 NIC driver for the Intel I225 and I226 controller
families supporting speeds from 10 Mbit to 2.5 Gbit with a BASE-T
interface. The device driver currently exposes a single transmit and
receive queue. It supports checksumming, jumbo frames up to 9216 bytes,
LED control, and full control around auto-negotiation and pause frames.

For each device supported by the igc driver, a character special file is
created under /dev/net. The first instance would have id 0 and would be
named igc0 and found at /dev/net/igc0. The device supports the Data Link
Provider Interface (DLPI) which is documented in dlpi(4P) and more easily
consumed via libdlpi(3LIB).

Early revisions of the I225 device had issues where the minimum supported
inter-packet gap was not sufficient. This caused some issues with
2500BASE-T operation, but did not impact 1000BASE-T. In some cases, it may
be necessary to disable support for 2500BASE-T via dladm(8).

FILES

/kernel/drv/amd64/igc Device driver (x86)

SEE ALSO

libdlpi(3LIB), dlpi(4P), dladm(8)

illumos February 8, 2024 illumos