1*83e93d53SAlexander Ziaee.\"- 2*83e93d53SAlexander Ziaee.\" SPDX-License-Identifier: BSD-2-Clause 3fad4aec8SGlen Barber.\" 4fad4aec8SGlen Barber.\" Copyright (c) 2012 Microsoft Corp. 5fad4aec8SGlen Barber.\" All rights reserved. 6fad4aec8SGlen Barber.\" 7fad4aec8SGlen Barber.\" Redistribution and use in source and binary forms, with or without 8fad4aec8SGlen Barber.\" modification, are permitted provided that the following conditions 9fad4aec8SGlen Barber.\" are met: 10fad4aec8SGlen Barber.\" 1. Redistributions of source code must retain the above copyright 11fad4aec8SGlen Barber.\" notice, this list of conditions and the following disclaimer. 12fad4aec8SGlen Barber.\" 2. Redistributions in binary form must reproduce the above copyright 13fad4aec8SGlen Barber.\" notice, this list of conditions and the following disclaimer in the 14fad4aec8SGlen Barber.\" documentation and/or other materials provided with the distribution. 15fad4aec8SGlen Barber.\" 16fad4aec8SGlen Barber.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17fad4aec8SGlen Barber.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18fad4aec8SGlen Barber.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19fad4aec8SGlen Barber.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20fad4aec8SGlen Barber.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21fad4aec8SGlen Barber.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22fad4aec8SGlen Barber.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23fad4aec8SGlen Barber.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24fad4aec8SGlen Barber.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25fad4aec8SGlen Barber.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26fad4aec8SGlen Barber.\" SUCH DAMAGE. 27fad4aec8SGlen Barber.\" 28fad4aec8SGlen Barber.Dd September 10, 2013 29fad4aec8SGlen Barber.Dt HYPER-V 4 30fad4aec8SGlen Barber.Os 31fad4aec8SGlen Barber.Sh NAME 32fad4aec8SGlen Barber.Nm hv_netvsc 33fad4aec8SGlen Barber.Nd Hyper-V Network Virtual Service Consumer 34fad4aec8SGlen Barber.Sh SYNOPSIS 35fad4aec8SGlen BarberTo compile this driver into the kernel, place the following lines in 36fad4aec8SGlen Barberthe system kernel configuration file: 37fad4aec8SGlen Barber.Bd -ragged -offset indent 38fad4aec8SGlen Barber.Cd "device hyperv" 39fad4aec8SGlen Barber.Ed 40fad4aec8SGlen Barber.Sh DESCRIPTION 41fad4aec8SGlen BarberThe 42fad4aec8SGlen Barber.Nm 43fad4aec8SGlen Barberdriver implements the virtual network device for 44fad4aec8SGlen Barber.Fx 45fad4aec8SGlen Barberguest 46fad4aec8SGlen Barberpartitions running on Hyper-V. 47fad4aec8SGlen Barber.Fx 48fad4aec8SGlen Barberguest partitions running on Hyper-V do not have direct access to 49fad4aec8SGlen Barbernetwork devices attached to the Hyper-V server. 50fad4aec8SGlen BarberAlthough a 51fad4aec8SGlen Barber.Fx 52fad4aec8SGlen Barberguest can access network devices using Hyper-V's 53fad4aec8SGlen Barberfull emulation mode, the performance in this mode tends to be unsatisfactory. 54fad4aec8SGlen Barber.Pp 55fad4aec8SGlen BarberTo counter the above issues, the 56fad4aec8SGlen Barber.Nm 57fad4aec8SGlen Barberdriver implements a network 58fad4aec8SGlen BarberVirtual 59fad4aec8SGlen BarberService Consumer (VSC) that relays network requests from the guest partition 60fad4aec8SGlen Barberto the network Virtual Service Provider (VSP) hosted in the root partition 61fad4aec8SGlen Barberusing the high performance data exchange infrastructure provided by 62fad4aec8SGlen Barber.Xr hv_vmbus 4 63fad4aec8SGlen Barberdriver. 64fad4aec8SGlen BarberThe VSP in the root partition then forwards the network related requests to 65fad4aec8SGlen Barberthe physical network card. 66fad4aec8SGlen Barber.Sh SEE ALSO 67923544aaSBaptiste Daroussin.Xr hv_ata_pci_disengage 4 , 68fad4aec8SGlen Barber.Xr hv_storvsc 4 , 69923544aaSBaptiste Daroussin.Xr hv_utils 4 , 70923544aaSBaptiste Daroussin.Xr hv_vmbus 4 71fad4aec8SGlen Barber.Sh HISTORY 72fad4aec8SGlen BarberSupport for 73fad4aec8SGlen Barber.Nm 74fad4aec8SGlen Barberfirst appeared in 75fad4aec8SGlen Barber.Fx 10.0 . 76fad4aec8SGlen BarberThe driver was developed through a joint effort between Citrix Incorporated, 77fad4aec8SGlen BarberMicrosoft Corporation, and Network Appliance Incorporated. 78fad4aec8SGlen Barber.Sh AUTHORS 79fad4aec8SGlen Barber.An -nosplit 80fad4aec8SGlen Barber.Fx 81fad4aec8SGlen Barbersupport for 82fad4aec8SGlen Barber.Nm 83fad4aec8SGlen Barberwas first added by 846c899950SBaptiste Daroussin.An Microsoft BSD Integration Services Team Aq Mt bsdic@microsoft.com . 85