OS X driver for Intel onboard LAN
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Latest commit f3c69ce Dec 1, 2018

README.md

IntelMausiEthernet

OS X driver for Intel onboard LAN

A few days before Christmas I started my latest project, a new driver for recent Intel onboard LAN controllers. My intention was not to replace hnak's AppleIntelE1000e.kext completely but to deliver best performance and stability on recent hardware. That's why I dropped support for a number of older NICs. Currently the driver supports:

  • 5 Series
    • 82578LM
    • 82578LC
    • 82578DM
    • 82578DC
  • 6 and 7 Series
    • 82579LM
    • 82579V
  • 8 and 9 Series
    • I217LM
    • I217V
    • I218LM
    • I218V
    • I218LM2
    • I218V2
    • I218LM3
  • 100 Series
    • I219V
    • I219LM
    • I219V2
    • I219LM2
    • I219LM3

Key Features of the Driver

  • Support for multisegment packets relieving the network stack of unnecessary copy operations when assembling packets for transmission.
  • No-copy receive and transmit. Only small packets are copied on reception because creating a copy is more efficient than allocating a new buffer.
  • TCP, UDP and IPv4 checksum offload (receive and transmit).
  • Support for TCP/IPv6 and UDP/IPv6 checksum offload.
  • Makes use of the chip's TCP Segmentation Offload (TSO) feature with IPv4 and IPv6 in order to reduce CPU load while sending large amounts of data.
  • Fully optimized for Yosemite and Mavericks (64bit architecture) but should work with Mountain Lion and Lion too, provided you build from source with the 10.8 or 10.7 SDK.
  • Support for Energy Efficient Ethernet (EEE).
  • VLAN support is implemented but untested as I have no need for it.
  • The driver is published under GPLv2.