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#--

puts "FLOW: duplicate some port guid"

# duplicate the port guid from the source to the dest
proc dupPortGuid {fromNodeNPort toNodeNPort} {

   # IBDM has a limitation of not holding "end ports"
   # instead only physical ports are available.
   # So in case of a switch port (port num 0) we need to handle all physical ports
   # instead...

   # do we have a switch as the guid to duplicate?
   set node [lindex $fromNodeNPort 0]
   if {[lindex $fromNodeNPort 1] == 0} {
      # just use the port 1 instead
      set port [IBNode_getPort $node  1]
      set fromPortName "[IBNode_name_get $node]/P0"
   } else {
      set port [IBNode_getPort $node [lindex $fromNodeNPort 1]]
      set fromPortName [IBPort_getName $port]
   }
   set newGuid [IBPort_guid_get $port]

   # do we have a switch port 0 as a target?
   set node [lindex $toNodeNPort 0]
   if {[lindex $toNodeNPort 1] == 0} {
      set numPorts [IBNode_numPorts_get $node]
      for {set pn 1} {$pn <= $numPorts} {incr pn} {
         set port [IBNode_getPort $node $pn]
         if {$port != ""} {
            lappend targetPorts $port
         }
      }
      set simNodeInfo [IBMSNode_getNodeInfo sim$node]
      puts "-I- Overriding node:[IBNode_name_get $node] port guid to $newGuid (dup of $fromPortName)"
      ib_node_info_t_port_guid_set $simNodeInfo $newGuid
   } else {
      set port [IBNode_getPort $node [lindex $toNodeNPort 1]]
      set targetPorts $port
   }

   # do the copy
   foreach port $targetPorts {
      puts "-I- Overriding port:[IBPort_getName $port] guid to $newGuid (dup of $fromPortName)"
      IBPort_guid_set $port $newGuid
   }
}

# get a random order of all the fabric endports:
# a list of {node port-num random}
proc getEndPortsByRandomOreder {fabric} {
   global IB_SW_NODE

   # get number of nodes:
   set nodesByName [IBFabric_NodeByName_get $fabric]

   set nodePortNOrderList {}
   foreach nodeNameNId [IBFabric_NodeByName_get $fabric] {
      set node [lindex $nodeNameNId 1]

      # each node might be a switch (then take port 0)
      if {[IBNode_type_get $node] == $IB_SW_NODE} {
         lappend nodePortNOrderList [list $node 0 [rmRand]]
      } else {
         # only connected ports please:
         set numPorts [IBNode_numPorts_get $node]
         for {set pn 1} {$pn <= $numPorts} {incr pn} {
            set port [IBNode_getPort $node $pn]
            if {($port != "") && ([IBPort_p_remotePort_get $port] != "")} {
               lappend nodePortNOrderList [list $node $pn [rmRand]]
            }
         }
      }
   }

   set randNodes {}
   foreach nodePortNRnd [lsort -index 2 -real $nodePortNOrderList] {
      lappend randNodes [lrange $nodePortNRnd 0 1]
   }
   return $randNodes
}

# setup post SM run changes:
proc postSmSettings {fabric} {
   return "-I- Nothing to be done post SM"
}

# make sure ibdiagnet reported the bad links
proc verifyDiagRes {fabric logFile} {
   return "-I- Could not figure out if OK yet"
}

set fabric [IBMgtSimulator getFabric]

# get a random order of the end ports:
set randEndPorts [getEndPortsByRandomOreder $fabric]
set numEndPorts [llength $randEndPorts]

set swaps [expr int([rmRand]*$numEndPorts)/5]
if {!$swaps} {set swaps 1}

puts "Swapping $swaps PortGuis"
for {set i 1} {$i <= $swaps } {incr i} {
   set idx [expr ($i + int([rmRand]*$numEndPorts))%$numEndPorts]
   set fromNodeNPort [lindex $randEndPorts $idx]
   set clones [expr int([rmRand]*2)]
   if {!$clones} {set clones 1}
   puts "Swap #$i with #$clones clones"
   for {set j 1} {$j <= $clones} {incr j} {
      set toNodeNPort [lindex $randEndPorts [expr ($idx+$j)%$numEndPorts]]
      if {[catch {dupPortGuid $fromNodeNPort $toNodeNPort} e]} {
         puts $errorInfo
      }
   }
}