1.\"- 2.\" SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3.\" 4.\" Copyright 2019 Cisco Systems, Inc. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" 29.Dd Octber 9, 2019 30.Dt VMD 4 31.Os 32.Sh NAME 33.Nm vmd 34.Nd Intel Volume Management Device driver 35.Sh SYNOPSIS 36To compile this driver into the kernel, place the following lines in your 37kernel configuration file: 38.Bd -ragged -offset -indent 39.Cd "device vmd" 40.Cd "device vmd_bus" 41.Ed 42.Pp 43Alternatively, to load the driver as a module at boot time, place the following 44line in 45.Xr loader.conf 5 : 46.Bd -literal -offset indent 47vmd_load="YES" 48.Ed 49.Pp 50.Sh DESCRIPTION 51This driver attaches to Intel VMD devices as a new PCI domain and then 52triggers a probe of PCI devices. 53Intel VMD is used with Intel's VROC (Virtual RAID on chip) used with 54NVME drives on Skylake SP servers. 55.Sh SEE ALSO 56.Xr graid 8 57.Sh HISTORY 58The 59.Nm 60driver first appeared in 61.Fx 13.0 . 62.Sh BUGS 63.Nm 64is currently only available on amd64. 65