fuel-plugin-ovsnfv/deployment_scripts/puppet/modules/ovsdpdk/files/tune_params.sh

   1 #!/usr/bin/env  bash
   2
   3 # It adapts /etc/default/ovs-dpdk file
   4 # generated mainly from devstack/libs/ovs-dpdk
   5 # it will modify / tune variables, which are not configured directly
   6
   7 source /etc/default/ovs-dpdk
   8
   9 if [ $OVS_SOCKET_MEM == "auto" ] ; then
  10     for d in /sys/devices/system/node/node? ; do
  11         if [ $OVS_SOCKET_MEM == "auto" ]; then
  12                 OVS_SOCKET_MEM=2048
  13         else
  14                 OVS_SOCKET_MEM=$OVS_SOCKET_MEM,2048
  15         fi
  16     done
  17 fi
  18
  19 sudo sed "s#OVS_SOCKET_MEM=.*#OVS_SOCKET_MEM=$OVS_SOCKET_MEM#" -i /etc/default/ovs-dpdk
  20
  21 # Creates an array of pci addres to interface names delimeted by # e.g. <pci_address>#<interface name>
  22 PAIRS=( `ls -al /sys/class/net/* | grep pci | rev | awk '{print $1;}' | cut -d '/' -f 1,3 | rev |  sed s'/\//#/'` )
  23 # Populates OVS_BRIDGE_MAPPINGS if $PHYSICAL_NETWORK and $OVS_PHYSICAL_BRIDGE are used instead.
  24 if [[ "$OVS_DATAPATH_TYPE" != "" ]] && [[ "$OVS_BRIDGE_MAPPINGS" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then
  25     OVS_BRIDGE_MAPPINGS=$PHYSICAL_NETWORK:$OVS_PHYSICAL_BRIDGE
  26 fi
  27
  28 if [[ -z "$OVS_DPDK_PORT_MAPPINGS" ]]; then
  29     OVS_BRIDGES=${OVS_BRIDGE_MAPPINGS//,/ }
  30     ARRAY=( $OVS_BRIDGES )
  31     for net in "${ARRAY[@]}"; do
  32         bridge="${net##*:}"
  33         nic=${bridge/br-/}
  34         if [[ -z "$OVS_DPDK_PORT_MAPPINGS" ]]; then
  35             OVS_DPDK_PORT_MAPPINGS=$nic:$bridge
  36         else
  37             OVS_DPDK_PORT_MAPPINGS=$OVS_DPDK_PORT_MAPPINGS,$nic:$bridge
  38         fi
  39     done
  40 fi
  41
  42 MAPPINGS=${OVS_DPDK_PORT_MAPPINGS//,/ }
  43
  44 ARRAY=( $MAPPINGS )
  45 NICS=""
  46 for net in "${ARRAY[@]}"; do
  47     nic="${net%%:*}"
  48     bridge="${net##*:}"
  49     printf "%s in %s\n" "$KEY" "$VALUE"
  50     for pair in "${PAIRS[@]}"; do
  51         if [[ $nic == `echo $pair | cut -f 2 -d "#"` ]]; then
  52             if [[ $NICS == "" ]]; then
  53                 NICS=$pair
  54             else
  55                 NICS=$NICS,$pair
  56             fi
  57         fi
  58     done
  59 done
  60 sudo sed "s/OVS_PCI_MAPPINGS=.*/OVS_PCI_MAPPINGS=$NICS/" -i /etc/default/ovs-dpdk
  61 sudo sed "s/OVS_BRIDGE_MAPPINGS=.*/OVS_BRIDGE_MAPPINGS=$OVS_BRIDGE_MAPPINGS/" -i /etc/default/ovs-dpdk
  62 sudo sed "s/OVS_DPDK_PORT_MAPPINGS=.*/OVS_DPDK_PORT_MAPPINGS=$OVS_DPDK_PORT_MAPPINGS/" -i /etc/default/ovs-dpdk
  63
  64 OVS_PMD_CORE_MASK=$(echo $OVS_PMD_CORE_MASK | sed 's/^0x//')
  65
  66 if [ $OVS_PMD_CORE_MASK -eq 4 ]; then
  67     #default value, check for siblings in case of hyperthreading enabled
  68     SIBLINGS=""
  69     RESULT=0
  70     FILE="/sys/devices/system/cpu/cpu3/topology/thread_siblings_list"
  71     if [ -e $FILE ]; then
  72         SIBLINGS=`cat $FILE`
  73     else
  74         echo "warning: don't know how to check siblings"
  75         SIBLINGS=3
  76     fi
  77
  78     for SIBLING in $(echo $SIBLINGS | sed -n 1'p' | tr ',' '\n'); do
  79         SIBLING_CORE=`echo "obase=10;$((1<<($SIBLING-1)))" | bc`
  80         RESULT=$(($RESULT | $SIBLING_CORE))
  81     done
  82
  83     OVS_PMD_CORE_MASK=`printf "%x" $RESULT`
  84 fi
  85
  86 sudo sed "s#OVS_PMD_CORE_MASK=.*#OVS_PMD_CORE_MASK=$OVS_PMD_CORE_MASK#" -i /etc/default/ovs-dpdk