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puts "Running Simulation flow for Muticast Routing test"
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puts "Randomally Joining all the Fabric Ports with random delays"
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# send a single port join request
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proc sendJoinForPort {port smLid} {
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puts "-I- Joining port $port"
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# allocate a new mc member record:
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set mcm [new_madMcMemberRec]
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# join the IPoIB broadcast gid:
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madMcMemberRec_mgid_set $mcm 0xff12401bffff0000:00000000ffffffff
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# we must provide our own port gid
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madMcMemberRec_port_gid_set $mcm \
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"0xfe80000000000000:[string range [IBPort_guid_get $port] 2 end]"
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# must require full membership:
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madMcMemberRec_scope_state_set $mcm 0x1
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# we need port number and sim node for the mad send:
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set portNum [IBPort_num_get $port]
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set node [IBPort_p_node_get $port]
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# we need the comp_mask to include the mgid, port gid and join state:
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set compMask [format "0x%X" [expr (1<<16) | 3]]
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madMcMemberRec_send_set $mcm sim$node $portNum $smLid $compMask
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delete_madMcMemberRec $mcm
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# find all active HCA ports
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proc getAllActiveHCAPorts {fabric} {
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foreach nodeNameId [IBFabric_NodeByName_get $fabric] {
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set node [lindex $nodeNameId 1]
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# we do care about non switches only
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if {[IBNode_type_get $node] != 1} {
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for {set pn 1} {$pn <= [IBNode_numPorts_get $node]} {incr pn} {
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set port [IBNode_getPort $node $pn]
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if {($port != "") && ([IBPort_p_remotePort_get $port] != "")} {
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lappend hcaPorts $port
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# randomize join for all of the fabric HCA ports:
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proc randomJoinAllHCAPorts {fabric maxDelay_ms} {
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set hcaPorts [getAllActiveHCAPorts $fabric]
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foreach port $hcaPorts {
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lappend orederedPorts [list $port [rmRand]]
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set orederedPorts [lsort -index 1 -real $orederedPorts]
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# HACK: Assumes the SM node is H-1/U1 Port 1
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set smNode [IBFabric_getNode $fabric "H-1/U1"]
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set smPort [IBNode_getPort $smNode 1]
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set smPortInfo [IBMSNode_getPortInfo sim$smNode 1]
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set smLid [ib_port_info_t_base_lid_get $smPortInfo]
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# Now do the joins - waiting random time between them:
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foreach portNOrder $orederedPorts {
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set port [lindex $portNOrder 0]
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if {![sendJoinForPort $port $smLid]} {
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after [expr int([rmRand]*$maxDelay_ms)]