HFI, numbered 1..n. Using 0 specifies that the -p port port is a system-wide port number. Default is 0.
Port, numbered 1..n. If -h hfi is 0, then port is a system-wide port number. Default is 1.
Specifies output type. Can be used more than once. Default is brief summary of portinfo, counters, and cableinfo. Options include:
Output is displayed in line-by-line format. Default = summary format.
Output detail level. Range = 0 - n. CableInfo only. Default = 0.
All ports on all HFIs (default).
First active port in system.
All active ports on HFI x.
First active port on HFI x.
Port y within system (no matter which ports are active).
HFI x, port y
Verbose output. Additional invocations (–v –v ...) turn on debugging, openib debugging, and libibumad debugging.