NAME

       opaportconfig

       (Host  or  Switch)  Controls the configuration and state of a specified Intel(R) Omni-Path
       Host Fabric Interface (HFI) port on the local host or a remote switch.

       NOTE: This tool is designed for expert users only. Non-expert users should use other tools
       such as opaenableports, opadisableports and opaportinfo for basic functionality.

Syntax

       opaportconfig [-l  lid [-m  dest_port]] [-h  hfi] [-p  port] [-r  secs] [-z]

       [-S  state] [-P  physstate] [-s  speed] [-w  width] [-c  LTPCRC] [-v] [-x]
       [-L  lid] [< sub command>]

Options

       --help

                 Produces full help text.

       -l lid

                 Specifies the destination LID. Default is local port.

       -m dest_port

                 Specifies  the  destination port. Default is port with given LID. Used to access
                 switch ports.

       -h hfi

                 Specifies the HFI to send through/to. Default is first HFI.

       -p port

                 Specifies the port to send through/to. Default is first port.

       sub command

                 Specifies the one of the following choices:

                 enable    Enables port.

                 disable   Disables port.

                 bounce    Bounces port.

                 NOTE: Bouncing remote ports may cause timeouts.

                 ledon     Turns port LED on.

                 ledoff    Turns port LED off.

Configuration Options

       -r secs

                 Repeats to keep the port down for the specified amount of seconds.

       -S state

                 Specifies the new state. Default is 0.

                 0         No-op.

                 1         Down.

                 2         Initiate.

                 3         Armed.

                 4         Active.

       -P physstate

                 Specifies the new physical state. Default is 0.

       NOTE: All transitions are valid.

              0         No-op.

              2         Polling.

              3         Disabled.

              11        Phy-Test. Current physstate must be disabled.

       -s speed

                 Specifies the new link speeds enabled. Default is 0. To enable multiple  speeds,
                 use the sum of the desired speeds.

                 0         No-op.

                 2         0x0002 - 25 Gb/s.

       -w width

                 Specifies  the new link widths enabled. Default is 0. To enable multiple widths,
                 use sum of desired widths.

                 0         No-op.

                 1         0x01 - 1x.

                 2         0x02 - 2x.

                 4         0x04 - 3x.

                 8         0x08 - 4x.

       -c LTPCRC

                 Specifies the new LTP CRCs enabled. Default is 0.
                 To enable multiple LTP CRCs, use sum of desired LTP CRCs.

                 0         No-op.

                 1         0x1 - 14-bit LTP CRC mode.

                 2         0x2 - 16-bit LTP CRC mode.

                 4         0x4 - 48-bit LTP CRC mode.

                 8         0x8 - 12/16 bits per lane LTP CRC mode.

-h and -p options permit a variety of selections:

       -h 0

                 First active port in system (Default).

       -h 0 -p 0

                 First active port in system.

       -h x

                 First active port on HFI x.

       -h x -p 0

                 First active port on HFI x.

       -h 0 -p y

                 Port y within system (no matter which ports are active).

       -h x -p y

                 HFI x, port y.

Debug Options

       -v

                 Verbose output. Additional invocations turn on debugging, openib debugging,  and
                 libibumad debugging.

       -z

                 Does not get port information first; clears most port attributes.

       -L lid

                 Sets PortInfo.LID = lid.

Examples

       opaportconfig -w 1

       opaportconfig -p 1 -h 2 -w 3

Description

       Port  configuration  is transient in nature. If the given host is rebooted or its Intel(R)
       Omni-Path Fabric Stack is restarted, the port reverts to  its  default  configuration  and
       state. Typically, the default state is to have the port enabled with all speeds and widths
       supported by the given HFI port.

       To access switch ports using this command, the -l and -m options must  be  given.  The  -l
       option specifies the lid of switch port 0 (the logical management port for the switch) and
       -m specifies the actual switch port to access.

       NOTE: The /etc/init.d/opaportconfig script is provided as  an  example  of  changing  port
       speed  every  time  the  server  boots.  This  script can be edited, then scheduled, using
       chkconfig to control link settings on any set of HFI ports.

       CAUTION: When using this command to disable or reconfigure switch ports, if the final port
       in the path between the Fabric Management Node and the switch is disabled or fails to come
       online, then opaenableports is not able to reenable it.  In  this  case,  the  switch  CLI
       and/or a switch reboot may be needed to correct the situation.