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net/sched: act_police: add support for packet-per-second policing

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Allow a policer action to enforce a rate-limit based on packets-per-second,
configurable using a packet-per-second rate and burst parameters.

e.g.
tc filter add dev tap1 parent ffff: u32 match \
        u32 0 0 police pkts_rate 3000 pkts_burst 1000

Testing was unable to uncover a performance impact of this change on
existing features.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Baowen Zheng
2021-03-12 15:08:31 +01:00
committed by David S. Miller
parent 6a56e19902
commit 2ffe039528
5 changed files with 162 additions and 36 deletions
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2
include/uapi/linux/pkt_cls.h
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@@ -190,6 +190,8 @@ enum {
TCA_POLICE_PAD,
TCA_POLICE_RATE64,
TCA_POLICE_PEAKRATE64,
TCA_POLICE_PKTRATE64,
TCA_POLICE_PKTBURST64,
__TCA_POLICE_MAX
#define TCA_POLICE_RESULT TCA_POLICE_RESULT
};