smpquery allows a basic subset of standard SMP queries including the following: node info, node description, switch info, port info. Fields are displayed in human readable format.
Most OpenIB diagnostics take the following common flags. The exact list of supported flags per utility can be found in the usage message and can be shown using the util_name -h syntax.
# Debugging flags
-d raise the IB debugging level.
May be used several times (-ddd or -d -d -d).
-e show send and receive errors (timeouts and others)
-h show the usage message
-v increase the application verbosity level.
May be used several times (-vv or -v -v -v)
-V show the version info.
# Addressing flags
-D use directed path address arguments. The path
is a comma separated list of out ports.
"0" # self port
"0,1,2,1,4" # out via port 1, then 2, ...
-c use combined route address arguments. The
address is a combination of a LID and a direct route path.
The LID specified is the DLID and the local LID is used
as the DrSLID.
-G use GUID address argument. In most cases, it is the Port GUID.
-s <smlid> use 'smlid' as the target lid for SM/SA queries.
# Other common flags:
-C <ca_name> use the specified ca_name.
-P <ca_port> use the specified ca_port.
-t <timeout_ms> override the default timeout for the solicited mads.
Multiple CA/Multiple Port Support
When no IB device or port is specified, the port to use is selected by the following criteria:
1. the first port that is ACTIVE.
2. if not found, the first port that is UP (physical link up).
If a port and/or CA name is specified, the user request is attempted to be fulfilled, and will fail if it is not possible.
smpquery portinfo 3 1 # portinfo by lid, with port modifier
smpquery -G switchinfo 0x2C9000100D051 1 # switchinfo by guid
smpquery -D nodeinfo 0 # nodeinfo by direct route
smpquery -c nodeinfo 6 0,12 # nodeinfo by combined route