IBPORTSTATE(8)							OpenIB Diagnostics						    IBPORTSTATE(8)

NAME

       ibportstate - handle port (physical) state and link speed of an InfiniBand port

SYNOPSIS

       ibportstate [-d(ebug)] [-e(rr_show)] [-v(erbose)] [-D(irect)] [-G(uid)] [-s smlid] [-V(ersion)] [-C ca_name] [-P ca_port] [-t(imeout) time-
       out_ms] [-h(elp)] <dest dr_path|lid|guid> <portnum> [<op>]

DESCRIPTION

       ibportstate allows the port state and port physical state of an IB port to be queried (in addition to link width and speed being  validated
       relative  to  the peer port when the port queried is a switch port), or a switch port to be disabled, enabled, or reset. It also allows the
       link speed enabled on any IB port to be adjusted.

OPTIONS

       op     Port operations allowed
	       supported ops: enable, disable, reset, speed, query
	       Default is query

	ops enable, disable, and reset are only allowed on switch ports
	(An error is indicated if attempted on CA or router ports)
	speed op is allowed on any port
	speed values are legal values for PortInfo:LinkSpeedEnabled
	(An error is indicated if PortInfo:LinkSpeedSupported does not support
	 this setting)
	(NOTE: Speed changes are not effected until the port goes through
	 link renegotiation)
	query also validates port characteristics (link width and speed)
	 based on the peer port. This checking is done when the port
	 queried is a switch port as it relies on combined routing
	 (an initial LID route with directed routing to the peer) which
	 can only be done on a switch. This peer port validation feature
	 of query op requires LID routing to be functioning in the subnet.

COMMON OPTIONS

       Most OpenIB diagnostics take the following common flags. The exact list of supported flags per utility can be found in  the  usage  message
       and can be shown using the util_name -h syntax.

       # 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      show the usage message

       -v      increase the application verbosity level.
	       May be used several times (-vv or -v -v -v)

       -V      show the version info.

       # Addressing flags

       -D      use directed path address arguments. The path
	       is a comma separated list of out ports.
	       Examples:
	       "0"	       # self port
	       "0,1,2,1,4"     # out via port 1, then 2, ...

       -G      use GUID address argument. In most cases, it is the Port GUID.
	       Example:
	       "0x08f1040023"

       -s <smlid>      use 'smlid' as the target lid for SM/SA queries.

       # Other common flags:

       -C <ca_name>    use the specified ca_name.

       -P <ca_port>    use the specified ca_port.

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

       Multiple CA/Multiple Port Support

       When no IB device or port is specified, the port to use is selected 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 user request is attempted to be fulfilled, and will fail if it is not possible.

EXAMPLES

       ibportstate 3 1 disable		       # by lid

       ibportstate -G 0x2C9000100D051 1 enable # by guid

       ibportstate -D 0 1		       # (query) by direct route

       ibportstate 3 1 reset		       # by lid

       ibportstate 3 1 speed 1		       # by lid

AUTHOR

       Hal Rosenstock
	      <halr@voltaire.com>

OpenIB								 October 19, 2006						    IBPORTSTATE(8)