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.TH RDMA-NDD 8 "" "" "OpenIB Diagnostics"
.SH NAME
RDMA-NDD \- RDMA device Node Description update daemon
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.SH SYNOPSIS
.sp
rdma\-ndd <options>
.SH DESCRIPTION
.sp
rdma\-ndd is a system daemon which watches for rdma device changes and/or
hostname changes and updates the Node Description of the rdma devices based on
those changes.
.SH DETAILS
.sp
Full operation of this daemon requires kernels which support polling of the
procfs hostname file as well as libudev.
.sp
If your system does not support either of these features, the daemon will set
the Node Descriptions at start up and then sleep forever.
.SS Node Description format
.sp
The daemon uses the nd_format configuration option within the ibdiags.conf
file.  %h and %d can be used as wildcards in that string to specify the dynamic
use of <hostname> and <device> respectively.
.sp
NOTE: At startup and on new device detection the Node Description is always
written to ensure the SM and this daemon are in sync.  Subsequent events will
only write the Node Description on a device if it has changed.
.SH OPTIONS
.sp
\fB\-\-retry_timer, \-t\fP
Length of time to sleep when system errors occur when attempting to poll and or read the hostname from the system.
.sp
\fB\-\-retry_count, \-r\fP
Number of times to attempt to retry setting of the node description on failure.  Default 0
.sp
\fB\-\-foreground, \-f\fP
Run in the foreground instead of as a daemon
.sp
\fB\-\-pidfile <pidfile>\fP
specify a pid file (daemon mode only)
.SS Configuration flags
.\" Define the common option -z
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.sp
\fB\-\-config, \-z  <config_file>\fP Specify alternate config file.
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Default: /etc/infiniband-diags/ibdiag.conf
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.SS Debugging flags
.\" Define the common option -h
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.sp
\fB\-h, \-\-help\fP      show the usage message
.\" Define the common option -V
.
.sp
\fB\-V, \-\-version\fP     show the version info.
.SH FILES
.\" Common text for the config file
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.SS CONFIG FILE
.sp
/etc/infiniband-diags/ibdiag.conf
.sp
A global config file is provided to set some of the common options for all
tools.  See supplied config file for details.
.SH AUTHOR
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.TP
.B Ira Weiny
< \fI\%ira.weiny@intel.com\fP >
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