VMX(4) | Device Drivers Manual | VMX(4) |
vmx
— VMware
VMXNET3 Virtual Interface Controller device
vmx* at pci?
The vmx
driver provides support for the
VMXNET3 virtual NIC available in virtual machines by VMware. It appears as a
simple Ethernet device but is actually a virtual network interface to the
underlying host operating system.
This driver supports the VMXNET3
driver
protocol, as an alternative to the emulated
pcn(4),
em(4) and the earlier VMXNET
vic(4) interfaces also available
in the VMware environment. The vmx
driver is
optimized for the virtual machine, it can provide advanced capabilities
depending on the underlying host operating system and the physical network
interface controller of the host. In comparison to the earlier VMXNET
versions, as supported by the
vic(4) driver, VMXNET3 supports
additional features like multiqueue support, IPv6 checksum offloading,
MSI/MSI-X support and hardware VLAN tagging in VMware's VLAN Guest Tagging
(VGT) mode.
The vmx
driver supports VMXNET3 VMware
virtual NICs provided by the virtual machine hardware version 7 or newer, as
provided by the following products:
The vmx
driver supports the following
media types:
For more information on configuring this device, see ifconfig(8).
The following entry must be added to the VMware configuration file
to provide the vmx
device:
ethernet0.virtualDev = "vmxnet3"
arp(4), em(4), ifmedia(4), intro(4), netintro(4), pci(4), pcn(4), vic(4), hostname.if(5), ifconfig(8)
The vmx
driver first appeared in
OpenBSD 5.5.
The vmx
driver was written by
Tsubai Masanari.
October 17, 2017 | OpenBSD-6.7 |