1.\" $OpenBSD: vmx.4,v 1.2 2017/10/17 22:47:58 schwarze Exp $ 2.\" 3.\" Copyright (c) 2006,2013 Reyk Floeter <reyk@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: October 17 2017 $ 18.Dt VMX 4 19.Os 20.Sh NAME 21.Nm vmx 22.Nd VMware VMXNET3 Virtual Interface Controller device 23.Sh SYNOPSIS 24.Cd vmx* at pci? 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support for the VMXNET3 virtual NIC available in virtual 29machines by VMware. 30It appears as a simple Ethernet device but is actually a virtual network 31interface to the underlying host operating system. 32.Pp 33This driver supports the 34.Ic VMXNET3 35driver protocol, as an alternative to the emulated 36.Xr pcn 4 , 37.Xr em 4 38and the earlier VMXNET 39.Xr vic 4 40interfaces also available in the VMware environment. 41The 42.Nm vmx 43driver is optimized for the virtual machine, it can provide advanced 44capabilities depending on the underlying host operating system and 45the physical network interface controller of the host. 46In comparison to the earlier VMXNET versions, 47as supported by the 48.Xr vic 4 49driver, 50VMXNET3 supports additional features like multiqueue support, IPv6 51checksum offloading, MSI/MSI-X support and hardware VLAN tagging in 52VMware's VLAN Guest Tagging (VGT) mode. 53.Pp 54The 55.Nm 56driver supports VMXNET3 VMware virtual NICs provided by the virtual 57machine hardware version 7 or newer, as provided by the following 58products: 59.Pp 60.Bl -bullet -compact -offset indent 61.It 62VMware ESX/ESXi 4.0 and newer 63.It 64VMware Server 2.0 and newer 65.It 66VMware Workstation 6.5 and newer 67.It 68VMware Fusion 2.0 and newer 69.El 70.Pp 71The 72.Nm 73driver supports the following media types: 74.Bl -tag -width autoselect 75.It autoselect 76Enable autoselection of the media type and options. 77The driver always uses the fastest available speed and the media 78options provided by the underlying host of the virtual machine. 79.It 10GbaseT mediaopt full-duplex 80Set 10Gbps operation. 81.It 1000baseT mediaopt full-duplex 82Set 1000Mbps operation. 83.El 84.Pp 85For more information on configuring this device, see 86.Xr ifconfig 8 . 87.Sh EXAMPLES 88The following entry must be added to the VMware configuration file 89to provide the 90.Nm 91device: 92.Bd -literal -offset indent 93ethernet0.virtualDev = "vmxnet3" 94.Ed 95.Sh SEE ALSO 96.Xr arp 4 , 97.Xr em 4 , 98.Xr ifmedia 4 , 99.Xr intro 4 , 100.Xr netintro 4 , 101.Xr pci 4 , 102.Xr pcn 4 , 103.Xr vic 4 , 104.Xr hostname.if 5 , 105.Xr ifconfig 8 106.Sh HISTORY 107The 108.Nm 109driver first appeared in 110.Ox 5.5 . 111.Sh AUTHORS 112.An -nosplit 113The 114.Nm 115driver was written by 116.An Tsubai Masanari . 117