target/linux/bcm53xx/base-files/etc/init.d/fastnetwork

   1 #!/bin/sh /etc/rc.common
   2
   3 START=25
   4 USE_PROCD=1
   5
   6 start_service() {
   7         reload_service
   8 }
   9
  10 service_triggers() {
  11         procd_add_reload_trigger "network"
  12         procd_add_reload_trigger "firewall"
  13         procd_add_reload_interface_trigger "lan"
  14 }
  15
  16 reload_service() {
  17         local packet_steering="$(uci -q get network.@globals[0].packet_steering)"
  18         local num_cpus="$(grep -c "^processor.*:" /proc/cpuinfo)"
  19         local flow_offloading="$(uci -q get firewall.@defaults[0].flow_offloading)"
  20         local flow_offloading_hw="$(uci -q get firewall.@defaults[0].flow_offloading_hw)"
  21
  22         # Any steering on 1 CPU (BCM47081) worsens network performance
  23         [ "$num_cpus" != 2 ] && return
  24
  25         [ "$packet_steering" != 1 ] && {
  26                 echo 0 > /sys/class/net/br-lan/queues/rx-0/rps_cpus
  27                 echo 0 > /sys/class/net/eth0/queues/rx-0/rps_cpus
  28                 return
  29         }
  30
  31         if [ ${flow_offloading_hw:-0} -gt 0 ]; then
  32                 # HW offloading
  33                 echo 0 > /sys/class/net/br-lan/queues/rx-0/rps_cpus
  34                 echo 0 > /sys/class/net/eth0/queues/rx-0/rps_cpus
  35         elif [ ${flow_offloading:-0} -gt 0 ]; then
  36                 # SW offloading
  37                 # br-lan setup doesn't seem to matter for offloading case
  38                 echo 2 > /sys/class/net/eth0/queues/rx-0/rps_cpus
  39         else
  40                 # Default
  41                 echo 2 > /sys/class/net/br-lan/queues/rx-0/rps_cpus
  42                 echo 0 > /sys/class/net/eth0/queues/rx-0/rps_cpus
  43         fi
  44 }