Basic Commands

IB Basic Commands

ibstat

 Displays operational information about one or more InfiniBand network devices. This command displays InfiniBand operational
 information pertaining to a specified Host Channel Adapter Device (HCAD). If an HCAD device name is not entered, status for 
 all available HCADs are displayed. Select a flag to narrow down your search results. You can display specific categories of 
 information, including Node, Port, Interface, and Debug information. You can also choose to display all of the information 
 categories.

 Flags:
 -d	Displays current debug setting.
 -h	Displays ibstat command usage.
 -i	Displays network interface information.
 -n	Displays IB node information.
 -p	Displays IB port information.
 -v	Displays all IB device information.

Example output:

 [markus]# ibstat
 CA 'mlx4_0'

CA type: MT26428 Number of ports: 1 Firmware version: 2.9.1000 Hardware version: b0 Node GUID: 0x0002c903004af586 System image GUID: 0x0002c903004af589 Port 1: State: Active Physical state: LinkUp Rate: 40 Base lid: 250 LMC: 0 SM lid: 250 Capability mask: 0x0251086a Port GUID: 0x0002c903004af587 Link layer: InfiniBand

ibv_devinfo

 Print information about RDMA devices available for use from user space.

 Flags:
 -d, --ib-dev=DEVICE   use IB device DEVICE (default first device found)
 -i, --ib-port=PORT    query port PORT (default all ports)
 -l, --list            only list names of RDMA devices
 -v, --verbose         print all available

sminfo

Query InfiniBand SMInfo attribute.
Optionally set and display the output of a sminfo query in human readable format. 
This command indicates where the running SM is.

sminfo: sm lid 250 sm guid 0x2c903004af587, activity count 1828732680 priority 15 state 3 SMINFO_MASTER

ibping

ibping uses vendor mads to validate connectivity between IB nodes. 
On exit, (IP) ping like output is show. ibping is run as client/server. Default is to run as client. 
Note also that a default ping server is implemented within the kernel.

Flags:
-c            stop after count packets
-f, --flood   flood destination: send packets back to back without delay
-o, --oui     use specified OUI number to multiplex vendor mads
-S, --Server  start in server mode (do not return)

ib_tracert

Traces the path from Source GID/LID to Destinatino GID/LID
Each hop along the path is displayed until the destination is reached or a hop does not respond. 
By using the -m option, multicast path tracing can be performed between source and destination nodes.

Flags:
-n, --no_info                   simple format; don't show additional information
-m                              show the multicast trace of the specified mlid
--node-name-map <node-name-map> Specify a node name map. The node name map file maps GUIDs to more user friendly names.