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HardenedBSD/sbin/nvmecontrol/nvmecontrol.8

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Add nvmecontrol(8) source code and beginnings of a man page to the tree. Sponsored by: Intel Contributions from: Joe Golio/EMC <joseph dot golio at emc dot com>
2012-09-17 23:26:55 +02:00
.\"
.\" Copyright (c) 2012 Intel Corporation
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions, and the following disclaimer,
.\" without modification.
.\" 2. Redistributions in binary form must reproduce at minimum a disclaimer
.\" substantially similar to the "NO WARRANTY" disclaimer below
.\" ("Disclaimer") and any redistribution must be conditioned upon
.\" including a substantially similar Disclaimer requirement for further
.\" binary redistribution.
.\"
.\" NO WARRANTY
.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
.\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGES.
.\"
.\" nvmecontrol man page.
.\"
.\" Author: Jim Harris <jimharris@FreeBSD.org>
.\"
.\" $FreeBSD$
.\"
Add controller reset capability to nvme(4) and ability to explicitly invoke it from nvmecontrol(8). Controller reset will be performed in cases where I/O are repeatedly timing out, the controller reports an unrecoverable condition, or when explicitly requested via IOCTL or an nvme consumer. Since the controller may be in such a state where it cannot even process queue deletion requests, we will perform a controller reset without trying to clean up anything on the controller first. Sponsored by: Intel Reviewed by: carl
2013-03-26 20:50:46 +01:00
.Dd March 26, 2013
Add nvmecontrol(8) source code and beginnings of a man page to the tree. Sponsored by: Intel Contributions from: Joe Golio/EMC <joseph dot golio at emc dot com>
2012-09-17 23:26:55 +02:00
.Dt NVMECONTROL 8
.Os
.Sh NAME
.Nm nvmecontrol
.Nd NVM Express control utility
.Sh SYNOPSIS
.Nm
.Ic devlist
.Nm
.Ic identify
.Op Fl v
.Op Fl x
.Aq device id
.Nm
.Ic perftest
.Aq Fl n Ar num_threads
.Aq Fl o Ar read|write
.Op Fl p
.Aq Fl s Ar size_in_bytes
.Aq Fl t Ar time_in_sec
Add controller reset capability to nvme(4) and ability to explicitly invoke it from nvmecontrol(8). Controller reset will be performed in cases where I/O are repeatedly timing out, the controller reports an unrecoverable condition, or when explicitly requested via IOCTL or an nvme consumer. Since the controller may be in such a state where it cannot even process queue deletion requests, we will perform a controller reset without trying to clean up anything on the controller first. Sponsored by: Intel Reviewed by: carl
2013-03-26 20:50:46 +01:00
.Aq namespace id
.Nm
.Ic reset
.Aq controller id
Add nvmecontrol(8) source code and beginnings of a man page to the tree. Sponsored by: Intel Contributions from: Joe Golio/EMC <joseph dot golio at emc dot com>
2012-09-17 23:26:55 +02:00
.Sh DESCRIPTION
NVM Express (NVMe) is a storage protocol standard, for SSDs and other
high-speed storage devices over PCI Express.
.Sh EXAMPLES
.Dl nvmecontrol devlist
.Pp
Display a list of NVMe controllers and namespaces along with their device nodes.
Add controller reset capability to nvme(4) and ability to explicitly invoke it from nvmecontrol(8). Controller reset will be performed in cases where I/O are repeatedly timing out, the controller reports an unrecoverable condition, or when explicitly requested via IOCTL or an nvme consumer. Since the controller may be in such a state where it cannot even process queue deletion requests, we will perform a controller reset without trying to clean up anything on the controller first. Sponsored by: Intel Reviewed by: carl
2013-03-26 20:50:46 +01:00
.Pp
Add nvmecontrol(8) source code and beginnings of a man page to the tree. Sponsored by: Intel Contributions from: Joe Golio/EMC <joseph dot golio at emc dot com>
2012-09-17 23:26:55 +02:00
.Dl nvmecontrol identify nvme0
.Pp
Display a human-readable summary of the nvme0 IDENTIFY_CONTROLLER data.
.Pp
.Dl nvmecontrol identify -x -v nvme0ns1
.Pp
Display a hexadecimal dump of the nvme0 IDENTIFY_NAMESPACE data for namespace
1.
.Pp
.Dl nvmecontrol perftest -n 32 -o read -s 512 -t 30 nvme0ns1
.Pp
Run a performance test on nvme0ns1 using 32 kernel threads for 30 seconds. Each
thread will issue a single 512 byte read command. Results are printed to
stdout when 30 seconds expires.
Add controller reset capability to nvme(4) and ability to explicitly invoke it from nvmecontrol(8). Controller reset will be performed in cases where I/O are repeatedly timing out, the controller reports an unrecoverable condition, or when explicitly requested via IOCTL or an nvme consumer. Since the controller may be in such a state where it cannot even process queue deletion requests, we will perform a controller reset without trying to clean up anything on the controller first. Sponsored by: Intel Reviewed by: carl
2013-03-26 20:50:46 +01:00
.Pp
.Dl nvmecontrol reset nvme0
.Pp
Perform a controller-level reset of the nvme0 controller.
Add nvmecontrol(8) source code and beginnings of a man page to the tree. Sponsored by: Intel Contributions from: Joe Golio/EMC <joseph dot golio at emc dot com>
2012-09-17 23:26:55 +02:00
.Sh AUTHORS
.An -nosplit
.Nm
was developed by Intel and originally written by
.An Jim Harris Aq jimharris@FreeBSD.org .
.Pp
This man page was written by
.An Jim Harris Aq jimharris@FreeBSD.org .
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