Eric Lee / smarc-fsl-linux-kernel

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samples/pktgen/pktgen_sample02_multiqueue.sh 2.16 KB
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282fb5894   Jesper Dangaard Brouer   pktgen: add sampl... 
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  #!/bin/bash
  #
  # Multiqueue: Using pktgen threads for sending on multiple CPUs
  #  * adding devices to kernel threads
  #  * notice the naming scheme for keeping device names unique
  #  * nameing scheme: dev@thread_number
  #  * flow variation via random UDP source port
  #
  basedir=`dirname $0`
  source ${basedir}/functions.sh
  root_check_run_with_sudo "$@"
  #
  # Required param: -i dev in $DEV
  source ${basedir}/parameters.sh
  
  # Base Config
  DELAY="0"        # Zero means max speed
  COUNT="100000"   # Zero means indefinitely
  [ -z "$CLONE_SKB" ] && CLONE_SKB="0"
  
  # Flow variation random source port between min and max
  UDP_MIN=9
  UDP_MAX=109
  
  # (example of setting default params in your script)
0f06a6787   Martin KaFai Lau   samples: Add an I... 
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  if [ -z "$DEST_IP" ]; then
      [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
  fi
282fb5894   Jesper Dangaard Brouer   pktgen: add sampl... 
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  [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
  
  # General cleanup everything since last run
  pg_ctrl "reset"
  
  # Threads are specified with parameter -t value in $THREADS
  for ((thread = 0; thread < $THREADS; thread++)); do
      # The device name is extended with @name, using thread number to
      # make then unique, but any name will do.
      dev=${DEV}@${thread}
  
      # Add remove all other devices and add_device $dev to thread
      pg_thread $thread "rem_device_all"
      pg_thread $thread "add_device" $dev
  
      # Notice config queue to map to cpu (mirrors smp_processor_id())
      # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number
      pg_set $dev "flag QUEUE_MAP_CPU"
  
      # Base config of dev
      pg_set $dev "count $COUNT"
      pg_set $dev "clone_skb $CLONE_SKB"
      pg_set $dev "pkt_size $PKT_SIZE"
      pg_set $dev "delay $DELAY"
  
      # Flag example disabling timestamping
      pg_set $dev "flag NO_TIMESTAMP"
  
      # Destination
      pg_set $dev "dst_mac $DST_MAC"
0f06a6787   Martin KaFai Lau   samples: Add an I... 
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      pg_set $dev "dst$IP6 $DEST_IP"
282fb5894   Jesper Dangaard Brouer   pktgen: add sampl... 
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      # Setup random UDP port src range
      pg_set $dev "flag UDPSRC_RND"
      pg_set $dev "udp_src_min $UDP_MIN"
      pg_set $dev "udp_src_max $UDP_MAX"
  done
  
  # start_run
  echo "Running... ctrl^C to stop" >&2
  pg_ctrl "start"
  echo "Done" >&2
  
  # Print results
  for ((thread = 0; thread < $THREADS; thread++)); do
      dev=${DEV}@${thread}
      echo "Device: $dev"
      cat /proc/net/pktgen/$dev | grep -A2 "Result:"
  done