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net_sched: add hit counter for matchall

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Although matchall always matches packets, however, it still
relies on a protocol match first. So it is still useful to have
such a counter for matchall. Of course, unlike u32, every time
we hit a matchall filter, it is always a success, so we don't
have to distinguish them.

Sample output:

filter protocol 802.1Q pref 100 matchall chain 0
filter protocol 802.1Q pref 100 matchall chain 0 handle 0x1
  not_in_hw (rule hit 10)
	action order 1: vlan  pop continue
	 index 1 ref 1 bind 1 installed 40 sec used 1 sec
	Action statistics:
	Sent 836 bytes 10 pkt (dropped 0, overlimits 0 requeues 0)
	backlog 0b 0p requeues 0

Reported-by: Martin Olsson <martin.olsson+netdev@sentorsecurity.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cong Wang 2019-01-17 12:44:25 -08:00 • committed by David S. Miller
parent 209f94e618
commit f88c19aab5
2 changed files with 30 additions and 0 deletions
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6
include/uapi/linux/pkt_cls.h
View file

@ -527,11 +527,17 @@ enum {
/* Match-all classifier */
struct tc_matchall_pcnt {
__u64 rhit;
};
enum {
TCA_MATCHALL_UNSPEC,
TCA_MATCHALL_CLASSID,
TCA_MATCHALL_ACT,
TCA_MATCHALL_FLAGS,
TCA_MATCHALL_PCNT,
TCA_MATCHALL_PAD,
__TCA_MATCHALL_MAX,
};