vendstat - Man Page

query InfiniBand vendor specific functions


vendstat [options] <lid|guid>


vendstat uses vendor specific MADs to access beyond the IB spec vendor specific functionality. Currently, there is support for Mellanox InfiniSwitch-III (IS3) and InfiniSwitch-IV (IS4).



show IS3 or IS4 general information.


show IS3 port xmit wait counters.


show IS4 counter group info.

-c <num,num>

configure IS4 counter groups.

Configure IS4 counter groups 0 and 1. Such configuration is not persistent across IS4 reboot.  First number is for counter group 0 and second is for counter group 1.

Group 0 counter config values:


0 - PortXmitDataSL0-7 1 - PortXmitDataSL8-15 2 - PortRcvDataSL0-7

Group 1 counter config values:


1 - PortXmitDataSL8-15 2 - PortRcvDataSL0-7 8 - PortRcvDataSL8-15

-R, --Read <addr,mask>

Read configuration space record at addr

-W, --Write <addr,val,mask>

Write configuration space record at addr

Addressing Flags

-G, --Guid     The address specified is a Port GUID

-L, --Lid   The address specified is a LID

-s, --sm_port <smlid>     use 'smlid' as the target lid for SA queries.

Port Selection flags

-C, --Ca <ca_name>    use the specified ca_name.

-P, --Port <ca_port>    use the specified ca_port.

Local port Selection

Multiple port/Multiple CA support: when no IB device or port is specified (see the "local umad parameters" below), the libibumad library selects the port to use 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 libibumad library attempts to fulfill the user request, and will fail if it is not possible.

For example:

ibaddr                 # use the first port (criteria #1 above)
ibaddr -C mthca1       # pick the best port from "mthca1" only.
ibaddr -P 2            # use the second (active/up) port from the first available IB device.
ibaddr -C mthca0 -P 2  # use the specified port only.

Debugging flags


raise the IB debugging level. May be used several times (-ddd or -d -d -d).


show send and receive errors (timeouts and others)

-h, --help      show the usage message

-v,  --verbose

increase the application verbosity level. May be used several times (-vv or -v -v -v)

-V, --version     show the version info.

Configuration flags

-t, --timeout <timeout_ms> override the default timeout for the solicited mads.

--config, -z  <config_file> Specify alternate config file.

Default: /etc/infiniband-diags/ibdiag.conf


Config File


A global config file is provided to set some of the common options for all tools.  See supplied config file for details.



vendstat -N 6           # read IS3 or IS4 general information vendstat -w 6           # read IS3 port xmit wait counters vendstat -i 6 12        # read IS4 port 12 counter group info vendstat -c 0,1 6 12    # configure IS4 port 12 counter groups for PortXmitDataSL vendstat -c 2,8 6 12    # configure IS4 port 12 counter groups for PortRcvDataSL


Hal Rosenstock

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2017-08-21 Open IB Diagnostics