From b26015c33fe420399fff1c9f35d1e3204c441954 Mon Sep 17 00:00:00 2001 From: ldejing Date: Thu, 18 Aug 2022 19:11:00 +0800 Subject: datapath-windows: support meter action initial version This patch implemented meter action, currently, meter only support drop method and only support one band. The overall implementation is, when a packet comes in, it will first lookup meter according to the meter id, then get the band->rates and delta time since last access the same meter from the meter struct. Add the multiply result(band->rates * delta_time) to bucket, finally bucket minus the packet size, if the result larger than zero, allow the packet go through, otherwise deny the packet go through. Test case: 1. Setting the size meter size 3M, then the bandwidth was limit around 3M; ovs-ofctl -O OpenFlow13 add-meter br-test meter=2,kbps,\ band=type=drop,rate=3000 ovs-ofctl add-flow br-test "table=0,priority=1,ip \ actions=meter:2,normal" -O OpenFlow13 2. Setting the meter size 8M, then the bandwidth was limit around 8M; ovs-ofctl -O OpenFlow13 add-meter br-test meter=2,\ kbps,band=type=drop,rate=8000 ovs-ofctl add-flow br-test "table=0,priority=1,ip\ actions=meter:2,normal" -O OpenFlow13 Signed-off-by: ldejing Signed-off-by: Alin-Gabriel Serdean --- lib/netlink-socket.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'lib/netlink-socket.c') diff --git a/lib/netlink-socket.c b/lib/netlink-socket.c index 93c1fa561..80da20d9f 100644 --- a/lib/netlink-socket.c +++ b/lib/netlink-socket.c @@ -1574,6 +1574,11 @@ do_lookup_genl_family(const char *name, struct nlattr **attrs, family_name = OVS_FLOW_FAMILY; family_version = OVS_FLOW_VERSION; family_attrmax = OVS_FLOW_ATTR_MAX; + } else if (!strcmp(name, OVS_METER_FAMILY)) { + family_id = OVS_WIN_NL_METER_FAMILY_ID; + family_name = OVS_METER_FAMILY; + family_version = OVS_METER_VERSION; + family_attrmax = __OVS_METER_ATTR_MAX; } else if (!strcmp(name, OVS_WIN_NETDEV_FAMILY)) { family_id = OVS_WIN_NL_NETDEV_FAMILY_ID; family_name = OVS_WIN_NETDEV_FAMILY; -- cgit v1.2.1