IBND_DISCOVER_FABRIC - Online Linux Manual PageSection : 3
Updated : July 25, 2008
Source : OpenIB
Note : OpenIB Programmer's Manual

NAMEibnd_discover_fabric, ibnd_destroy_fabric, ibnd_debug ibnd_show_progress − initialize ibnetdiscover library.

SYNOPSIS#include <infiniband/ibnetdisc.h> ibnd_fabric_t *ibnd_discover_fabric(struct ibmad_port *ibmad_port, int timeout_ms, ib_portid_t *from, int hops) 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 VALUEibnd_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

EXAMPLESDiscover 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 ALSOlibibmad, mad_rpc_open_port

AUTHORSIra Weiny <weiny2@llnl.gov>
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Johanes Gumabo
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