Provided by: infiniband-diags_1.6.6-1_i386 bug

NAME

       IBLINKINFO - report link info for all links in the fabric

SYNOPSIS

       iblinkinfo <options>

DESCRIPTION

       iblinkinfo  reports  link  info  for each port in an IB fabric, node by
       node.  Optionally, iblinkinfo can do partial scans and limit its output
       to parts of a fabric.

OPTIONS

       --down, -d Print only nodes which have a port in the "Down" state.

       --line,  -l Print all information for each link on one line. Default is
       to print a header with the node information and then a  list  for  each
       port (useful for grep'ing output).

       --additional,      -p      Print      additional      port     settings
       (<LifeTime>,<HoqLife>,<VLStallCount>)

       --switches-only Show only switches in output.

       --cas-only Show only CAs in output.

   Partial Scan flags
       The node to start a partial scan can be specified  with  the  following
       addresses.

       --port-guid, -G <port_guid>  Specify a port_guid

       -D, --Direct <dr_path>     The address specified is a directed route

          Examples:
             -D "0"          # self port
             -D "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.)

       Note:  For  switches  results are printed for all ports not just switch
       port 0.

       --switch, -S <port_guid> same as  "-G".  (provided  only  for  backward
       compatibility)

       How much of the scan to be printed can be controled with the following.

       --all,  -a  Print all nodes found in a partial fabric scan.  Normally a
       partial fabric scan will return only the node specified.   This  option
       will print the other nodes found as well.

       --hops, -n <hops> Specify the number of hops away from a specified node
       to scan.  This is useful to expand a partial  fabric  scan  beyond  the
       node specified.

   Cache File flags
       --load-cache  <filename>  Load  and  use  the cached ibnetdiscover data
       stored in the specified filename.  May be  useful  for  outputting  and
       learning about other fabrics or a previous state of a fabric.

       --diff  <filename>  Load  cached  ibnetdiscover  data  and  do  a  diff
       comparison to the current network or another  cache.   A  special  diff
       output  for  ibnetdiscover output will be displayed showing differences
       between the old and current fabric.   By  default,  the  following  are
       compared for differences: switches, channel adapters, routers, and port
       connections.

       --diffcheck <key(s)> Specify what diff checks should  be  done  in  the
       --diff  option  above.  Comma separate multiple diff check key(s).  The
       available diff checks are: sw = switches, ca = channel adapters, router
       =  routers,  port  =  port  connections,  lid  =  lids, nodedesc = node
       descriptions.  Note that port, lid, and nodedesc are checked  only  for
       the  node  types  that are specified (e.g. sw, ca, router).  If port is
       specified  alongside  lid  or  nodedesc,  remote  port  lids  and  node
       descriptions will also be compared.

       --filterdownports   <filename>   Filter   downports   indicated   in  a
       ibnetdiscover cache.  If a port was previously indicated as down in the
       specified  cache,  and is still down, do not output it in the resulting
       output.  This option may be particularly useful for environments  where
       switches  are  not fully populated, thus much of the default iblinkinfo
       info is considered  useless.   See  ibnetdiscover  for  information  on
       caching ibnetdiscover output.

   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.

   Configuration flags
       --config, -z  <config_file> Specify alternate config file.
          Default: /etc/infiniband-diags/ibdiag.conf

       --outstanding_smps, -o <val>
              Specify  the  number of outstanding SMP's which should be issued
              during the scan

              Default: 2

       --node-name-map <node-name-map> Specify a node name map.
          This file maps  GUIDs  to  more  user  friendly  names.   See  FILES
          section.

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

       -y, --m_key <key>
              use the specified M_key for requests. If non-numeric value (like
              'x') is specified then a value will be prompted for.

   Debugging flags
       -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.

EXIT STATUS

       0 on success, -1 on failure to scan the fabric, 1 if check mode is used
       and inconsistencies are found.

FILES

   CONFIG FILE
       /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.

   NODE NAME MAP FILE FORMAT
       The node name map is used to specify user friendly names for  nodes  in
       the output.  GUIDs are used to perform the lookup.

       This  functionality  is  provided  by  the  opensm-libs  package.   See
       opensm(8) for the file location for your installation.

       Generically:

          # comment
          <guid> "<name>"

       Example:

          # IB1
          # Line cards
          0x0008f104003f125c "IB1 (Rack 11 slot 1   ) ISR9288/ISR9096 Voltaire sLB-24D"
          0x0008f104003f125d "IB1 (Rack 11 slot 1   ) ISR9288/ISR9096 Voltaire sLB-24D"
          0x0008f104003f10d2 "IB1 (Rack 11 slot 2   ) ISR9288/ISR9096 Voltaire sLB-24D"
          0x0008f104003f10d3 "IB1 (Rack 11 slot 2   ) ISR9288/ISR9096 Voltaire sLB-24D"
          0x0008f104003f10bf "IB1 (Rack 11 slot 12  ) ISR9288/ISR9096 Voltaire sLB-24D"

          # Spines
          0x0008f10400400e2d "IB1 (Rack 11 spine 1   ) ISR9288 Voltaire sFB-12D"
          0x0008f10400400e2e "IB1 (Rack 11 spine 1   ) ISR9288 Voltaire sFB-12D"
          0x0008f10400400e2f "IB1 (Rack 11 spine 1   ) ISR9288 Voltaire sFB-12D"
          0x0008f10400400e31 "IB1 (Rack 11 spine 2   ) ISR9288 Voltaire sFB-12D"
          0x0008f10400400e32 "IB1 (Rack 11 spine 2   ) ISR9288 Voltaire sFB-12D"

          # GUID   Node Name
          0x0008f10400411a08 "SW1  (Rack  3) ISR9024 Voltaire 9024D"
          0x0008f10400411a28 "SW2  (Rack  3) ISR9024 Voltaire 9024D"
          0x0008f10400411a34 "SW3  (Rack  3) ISR9024 Voltaire 9024D"
          0x0008f104004119d0 "SW4  (Rack  3) ISR9024 Voltaire 9024D"

AUTHOR

       Ira Weiny
              < ira.weiny@intel.com >

                                                                 IBLINKINFO(8)