smpdump(8) — Linux manual page

NAME \| SYNOPSIS \| DESCRIPTION \| OPTIONS \| FILES \| EXAMPLES \| SEE ALSO \| AUTHOR \| COLOPHON

SMPDUMP(8)                 Open IB Diagnostics                 SMPDUMP(8)

NAME top

       smpdump - dump InfiniBand subnet management attributes

SYNOPSIS top

       smpdump [options] <dlid|dr_path> <attribute> [attribute_modifier]

DESCRIPTION top

       smpdump is a general purpose SMP utility which gets SM attributes
       from a specified SMA. The result is dumped in hex by default.

OPTIONS top

dlid|drpath
LID or DR path to SMA

attribute
IBA attribute ID for SM attribute

attribute_modifier
IBA modifier for SM attribute

-s, --string
Print strings in packet if possible

Addressing Flags
-D, --Direct The address specified is a directed route

Examples:
[options] -D [options] "0" # self port
[options] -D [options] "0,1,2,1,4" # out via port 1, then 2, ...

(Note the second number in the path specified must match the port being
used. This can be specified using the port selection flag '-P' or the
port found through the automatic selection process.)

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

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
-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, --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:
/ssd11/FOSS/rdma-core/build/etc/infiniband-diags/ibdiag.conf

FILES top

   CONFIG FILE
       /ssd11/FOSS/rdma-core/build/etc/infiniband-diags/ibdiag.conf

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

EXAMPLES top

       Direct Routed Examples

          smpdump -D 0,1,2,3,5 16 # NODE DESC
          smpdump -D 0,1,2 0x15 2 # PORT INFO, port 2

       LID Routed Examples

          smpdump 3 0x15 2        # PORT INFO, lid 3 port 2
          smpdump 0xa0 0x11       # NODE INFO, lid 0xa0

AUTHOR top

       Hal Rosenstock
              <  <halr@voltaire.com>  >

COLOPHON top

       This page is part of the rdma-core (RDMA Core Userspace Libraries
       and Daemons) project.  Information about the project can be found
       at ⟨https://github.com/linux-rdma/rdma-core⟩.  If you have a bug
       report for this manual page, send it to
       linux-rdma@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2025-08-04.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there is
       a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

                                2017-08-21                     SMPDUMP(8)

Pages that refer to this page: sminfo(8), smpquery(8)