IBND_DISCOVER_FABRIC(3)   OpenIB Programmer's Manual   IBND_DISCOVER_FABRIC(3)

NAME
       ibnd_discover_fabric, ibnd_destroy_fabric, ibnd_debug
       ibnd_show_progress - initialize ibnetdiscover library.

SYNOPSIS
       #include <infiniband/ibnetdisc.h>

       void ibnd_destroy_fabric(ibnd_fabric_t *fabric)
       void ibnd_debug(int i)
       void ibnd_show_progress(int i)
       int ibnd_set_max_smps_on_wire(int i)

DESCRIPTION
       ibnd_discover_fabric() Discover the fabric connected to the port
       specified by ibmad_port, using a timeout specified.  The "from" and
       "hops" parameters are optional and allow one to scan part of a fabric
       by specifying a node "from" and a number of hops away from that node to
       scan, "hops".  This gives the user a "sub-fabric" which is "centered"
       anywhere they chose.

       ibmad_port must be opened with at least IB_SMI_CLASS and
       IB_SMI_DIRECT_CLASS classes for ibnd_discover_fabric to work.

       ibnd_destroy_fabric() free all memory and resources associated with the
       fabric.

       ibnd_debug() Set the debug level to be printed as library operations
       take place.

       ibnd_show_progress() Indicate that the library should print debug
       output which shows it's progress through the fabric.

       ibnd_set_max_smps_on_wire() Set the number of SMP's which will be
       issued on the wire simultaneously.

RETURN VALUE
       ibnd_discover_fabric() return NULL on failure, otherwise a valid
       ibnd_fabric_t object.

       ibnd_destory_fabric(), ibnd_debug() NONE

       ibnd_set_max_smps_on_wire() The previous value is returned

EXAMPLES
       Discover the entire fabric connected to device mthca0 , port 1.

            int mgmt_classes[2] = {IB_SMI_CLASS, IB_SMI_DIRECT_CLASS};  struct
       ibmad_port *ibmad_port = mad_rpc_open_port(ca, ca_port, mgmt_classes,
       2);  ibnd_fabric_t *fabric = ibnd_discover_fabric(ibmad_port, 100,
       NULL, 0);      ...       ibnd_destroy_fabric(fabric);
            mad_rpc_close_port(ibmad_port);

       Discover only a single node and those nodes connected to it.

            ...       str2drpath(&(port_id.drpath), from, 0, 0);   ...
            ibnd_discover_fabric(ibmad_port, 100, &port_id, 1);    ...

SEE ALSO
            libibmad, mad_rpc_open_port

AUTHORS
       Ira Weiny <weiny2@llnl.gov>

OpenIB                           July 25, 2008         IBND_DISCOVER_FABRIC(3)