HV_NETVSC(4FREEBSD) - man page online | special files

HYPER-V(4)                         BSD Kernel Interfaces Manual                        HYPER-V(4)

NAME
     hv_netvsc — Hyper-V Network Virtual Service Consumer

SYNOPSIS
     To compile this driver into the kernel, place the following lines in the system kernel con‐
     figuration file:

           device hyperv

DESCRIPTION
     The hv_netvsc driver implements the virtual network device for FreeBSD guest partitions run‐
     ning on Hyper-V.  FreeBSD guest partitions running on Hyper-V do not have direct access to
     network devices attached to the Hyper-V server.  Although a FreeBSD guest can access network
     devices using Hyper-V's full emulation mode, the performance in this mode tends to be unsat‐
     isfactory.

     To counter the above issues, the hv_netvsc driver implements a network Virtual Service Con‐
     sumer (VSC) that relays network requests from the guest partition to the network Virtual
     Service Provider (VSP) hosted in the root partition using the high performance data exchange
     infrastructure provided by hv_vmbus(4) driver.  The VSP in the root partition then forwards
     the network related requests to the physical network card.

SEE ALSO
     hv_vmbus(4), hv_utils(4), hv_storvsc(4), hv_ata_pci_disengage(4)

HISTORY
     Support for hv_netvsc first appeared in FreeBSD 10.0.  The driver was developed through a
     joint effort between Citrix Incorporated, Microsoft Corporation, and Network Appliance
     Incorporated.

AUTHORS
     FreeBSD support for hv_netvsc was first added by Microsoft BSD Integration Services Team
     <@microsoft.com>.

BSD                                     September 10, 2013                                    BSD