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       vendstat - query InfiniBand vendor specific functions


       vendstat  [-d(ebug)]  [-G(uid)]  [-N]  [-w]  [-C  ca_name] [-P ca_port]
       [-t(imeout) timeout_ms] [-V(ersion)] [-h(elp)] <lid|guid>


       vendstat uses vendor specific MADs to access beyond the IB spec  vendor
       specific  functionality.  Currently, there is support only for Mellanox
       InfiniSwitch-III (IS3).


       -N     show IS3 general information.

       -w     show IS3 port xmit wait counters.


       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

       -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.


       vendstat -N 6       # read IS3 general information

       vendstat -w 6       # read IS3 port xmit wait counters


       Hal Rosenstock