1. 24 Apr, 2020 1 commit
    • Tonghao Zhang's avatar
      net: openvswitch: expand the meters supported number · c7c4c44c
      Tonghao Zhang authored
      In kernel datapath of Open vSwitch, there are only 1024
      buckets of meter in one datapath. If installing more than
      1024 (e.g. 8192) meters, it may lead to the performance drop.
      But in some case, for example, Open vSwitch used as edge
      gateway, there should be 20K at least, where meters used for
      IP address bandwidth limitation.
      
      [Open vSwitch userspace datapath has this issue too.]
      
      For more scalable meter, this patch use meter array instead of
      hash tables, and expand/shrink the array when necessary. So we
      can install more meters than before in the datapath.
      Introducing the struct *dp_meter_instance, it's easy to
      expand meter though changing the *ti point in the struct
      *dp_meter_table.
      
      Cc: Pravin B Shelar <pshelar@ovn.org>
      Cc: Andy Zhou <azhou@ovn.org>
      Signed-off-by: default avatarTonghao Zhang <xiangxia.m.yue@gmail.com>
      Acked-by: default avatarPravin B Shelar <pshelar@ovn.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c7c4c44c
  2. 23 Apr, 2020 39 commits