INFINIBAND-DIAGS(8) Open IB Diagnostics INFINIBAND-DIAGS(8)NAME
INFINIBAND-DIAGS -
Diagnostics for InfiniBand Fabrics
DESCRIPTION
infiniband-diags is a set of utilities designed to help configure,
debug, and maintain infiniband fabrics. Many tools and utilities are
provided. Some with similar functionality.
The base utilities use directed route MAD's to perform their opera‐
tions. They may therefore work even in unconfigured subnets. Other,
higher level utilities, require LID routed MAD's and to some extent
SA/SM access.
THE USE OF SMPs (QP0)
Many of the tools in this package rely on the use of SMPs via QP0 to
acquire data directly from the SMA. While this mode of operation is
not technically in compliance with the InfiniBand specification, prac‐
tical experience has found that this level of diagnostics is valuable
when working with a fabric which is broken or only partially config‐
ured. For this reason many of these tools may require the use of an
MKey or operation from Virtual Machines may be restricted for security
reasons.
COMMON OPTIONS
Most OpenIB diagnostics take some of the following common flags. The
exact list of supported flags per utility can be found in the documen‐
tation for those commands.
Addressing Flags
The -D and -G option have two forms:
-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.)
-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.)
-G, --Guid The address specified is a Port GUID
--port-guid, -G <port_guid> Specify 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 speci‐
fied (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.
--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 sec‐
tion.
--config, -z <config_file> Specify alternate config file.
Default: /etc/infiniband-diags/ibdiag.conf
COMMON FILES
The following config files are common amongst many of the utilities.
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"
TOPOLOGY FILE FORMAT
The topology file format is human readable and largely intuitive. Most
identifiers are given textual names like vendor ID (vendid), device ID
(device ID), GUIDs of various types (sysimgguid, caguid, switchguid,
etc.). PortGUIDs are shown in parentheses (). For switches, this is
shown on the switchguid line. For CA and router ports, it is shown on
the connectivity lines. The IB node is identified followed by the num‐
ber of ports and a quoted the node GUID. On the right of this line is
a comment (#) followed by the NodeDescription in quotes. If the node
is a switch, this line also contains whether switch port 0 is base or
enhanced, and the LID and LMC of port 0. Subsequent lines pertaining
to this node show the connectivity. On the left is the port number of
the current node. On the right is the peer node (node at other end of
link). It is identified in quotes with nodetype followed by - followed
by NodeGUID with the port number in square brackets. Further on the
right is a comment (#). What follows the comment is dependent on the
node type. If it it a switch node, it is followed by the NodeDescrip‐
tion in quotes and the LID of the peer node. If it is a CA or router
node, it is followed by the local LID and LMC and then followed by the
NodeDescription in quotes and the LID of the peer node. The active
link width and speed are then appended to the end of this output line.
An example of this is:
#
# Topology file: generated on Tue Jun 5 14:15:10 2007
#
# Max of 3 hops discovered
# Initiated from node 0008f10403960558 port 0008f10403960559
Non-Chassis Nodes
vendid=0x8f1
devid=0x5a06
sysimgguid=0x5442ba00003000
switchguid=0x5442ba00003080(5442ba00003080)
Switch 24 "S-005442ba00003080" # "ISR9024 Voltaire" base port 0 lid 6 lmc 0
[22] "H-0008f10403961354"[1](8f10403961355) # "MT23108 InfiniHost Mellanox Technologies" lid 4 4xSDR
[10] "S-0008f10400410015"[1] # "SW-6IB4 Voltaire" lid 3 4xSDR
[8] "H-0008f10403960558"[2](8f1040396055a) # "MT23108 InfiniHost Mellanox Technologies" lid 14 4xSDR
[6] "S-0008f10400410015"[3] # "SW-6IB4 Voltaire" lid 3 4xSDR
[12] "H-0008f10403960558"[1](8f10403960559) # "MT23108 InfiniHost Mellanox Technologies" lid 10 4xSDR
vendid=0x8f1
devid=0x5a05
switchguid=0x8f10400410015(8f10400410015)
Switch 8 "S-0008f10400410015" # "SW-6IB4 Voltaire" base port 0 lid 3 lmc 0
[6] "H-0008f10403960984"[1](8f10403960985) # "MT23108 InfiniHost Mellanox Technologies" lid 16 4xSDR
[4] "H-005442b100004900"[1](5442b100004901) # "MT23108 InfiniHost Mellanox Technologies" lid 12 4xSDR
[1] "S-005442ba00003080"[10] # "ISR9024 Voltaire" lid 6 1xSDR
[3] "S-005442ba00003080"[6] # "ISR9024 Voltaire" lid 6 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x8f10403960984
Ca 2 "H-0008f10403960984" # "MT23108 InfiniHost Mellanox Technologies"
[1](8f10403960985) "S-0008f10400410015"[6] # lid 16 lmc 1 "SW-6IB4 Voltaire" lid 3 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x5442b100004900
Ca 2 "H-005442b100004900" # "MT23108 InfiniHost Mellanox Technologies"
[1](5442b100004901) "S-0008f10400410015"[4] # lid 12 lmc 1 "SW-6IB4 Voltaire" lid 3 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x8f10403961354
Ca 2 "H-0008f10403961354" # "MT23108 InfiniHost Mellanox Technologies"
[1](8f10403961355) "S-005442ba00003080"[22] # lid 4 lmc 1 "ISR9024 Voltaire" lid 6 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x8f10403960558
Ca 2 "H-0008f10403960558" # "MT23108 InfiniHost Mellanox Technologies"
[2](8f1040396055a) "S-005442ba00003080"[8] # lid 14 lmc 1 "ISR9024 Voltaire" lid 6 4xSDR
[1](8f10403960559) "S-005442ba00003080"[12] # lid 10 lmc 1 "ISR9024 Voltaire" lid 6 1xSDR
When grouping is used, IB nodes are organized into chassis which are
numbered. Nodes which cannot be determined to be in a chassis are dis‐
played as "Non-Chassis Nodes". External ports are also shown on the
connectivity lines.
Utilities list
Basic fabric conectivity
See: ibnetdiscover, iblinkinfo
Node information
See: ibnodes, ibswitches, ibhosts, ibrouters
Port information
See: ibportstate, ibaddr
Switch Forwarding Table info
See: ibtracert, ibroute, dump_lfts, dump_mfts, check_lft_balance,
ibfindnodesusing
Peformance counters
See: ibqueryerrors, perfquery
Local HCA info
See: ibstat, ibstatus
Connectivity check
See: ibping, ibsysstat
Low level query tools
See: smpquery, smpdump, saquery, sminfo
Fabric verification tools
See: ibidsverify
Backwards compatibility scripts
The following scripts have been identified as redundant and/or lower
performing as compared to the above scripts. They are provided as
legacy scripts when --enable-compat-utils is specified at build time.
ibcheckerrors, ibclearcounters, ibclearerrors, ibdatacounters ibcheck‐
net, ibchecknode, ibcheckport, ibcheckportstate, ibcheckportwidth,
ibcheckstate, ibcheckwidth, ibswportwatch, ibprintca, ibprintrt,
ibprintswitch, set_nodedesc.sh
AUTHORS
Ira Weiny
<weiny2@llnl.gov>
INFINIBAND-DIAGS(8)
