1IBND_DISCOVER_FABRIC(3)   OpenIB Programmer's Manual   IBND_DISCOVER_FABRIC(3)
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NAME

6       ibnd_discover_fabric,          ibnd_destroy_fabric,          ibnd_debug
7       ibnd_show_progress - initialize ibnetdiscover library.
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SYNOPSIS

10       #include <infiniband/ibnetdisc.h>
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12       void ibnd_destroy_fabric(ibnd_fabric_t *fabric)
13       void ibnd_debug(int i)
14       void ibnd_show_progress(int i)
15       int ibnd_set_max_smps_on_wire(int i)
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DESCRIPTION

18       ibnd_discover_fabric() Discover the fabric connected to the port speci‐
19       fied  by  ibmad_port, using a timeout specified.  The "from" and "hops"
20       parameters are optional and allow one to scan part of a fabric by spec‐
21       ifying  a node "from" and a number of hops away from that node to scan,
22       "hops".  This gives the user a "sub-fabric" which  is  "centered"  any‐
23       where they chose.
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25       ibmad_port   must   be   opened   with   at   least   IB_SMI_CLASS  and
26       IB_SMI_DIRECT_CLASS classes for ibnd_discover_fabric to work.
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28       ibnd_destroy_fabric() free all memory and resources associated with the
29       fabric.
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31       ibnd_debug()  Set  the  debug level to be printed as library operations
32       take place.
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34       ibnd_show_progress() Indicate that the library should print debug  out‐
35       put which shows it's progress through the fabric.
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37       ibnd_set_max_smps_on_wire()  Set  the  number  of  SMP´s  which will be
38       issued on the wire simultaneously.
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RETURN VALUE

42       ibnd_discover_fabric()  return  NULL  on  failure,  otherwise  a  valid
43       ibnd_fabric_t object.
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45       ibnd_destory_fabric(), ibnd_debug() NONE
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47       ibnd_set_max_smps_on_wire() The previous value is returned
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EXAMPLES

51       Discover the entire fabric connected to device mthca0 , port 1.
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53            int   mgmt_classes[2]   =   {IB_SMI_CLASS,   IB_SMI_DIRECT_CLASS};
54            struct ibmad_port  *ibmad_port  =  mad_rpc_open_port(ca,  ca_port,
55       mgmt_classes,   2);       ibnd_fabric_t  *fabric  =  ibnd_discover_fab‐
56       ric(ibmad_port, 100, NULL, 0);      ...        ibnd_destroy_fabric(fab‐
57       ric);      mad_rpc_close_port(ibmad_port);
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59       Discover only a single node and those nodes connected to it.
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61            ...        str2drpath(&(port_id.drpath),  from,  0,  0);       ...
62            ibnd_discover_fabric(ibmad_port, 100, &port_id, 1);      ...
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SEE ALSO

65            libibmad, mad_rpc_open_port
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AUTHORS

68       Ira Weiny <weiny2@llnl.gov>
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72OpenIB                           July 25, 2008         IBND_DISCOVER_FABRIC(3)
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