netdev - [PATCH] Re: iproute2 action/policer question

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Message-ID: <20090615214748.GA3857@ami.dom.local>
Date:	Mon, 15 Jun 2009 23:47:48 +0200
From:	Jarek Poplawski <jarkao2@...il.com>
To:	jamal <hadi@...erus.ca>
Cc:	Paweł Staszewski <pstaszewski@...are.pl>,
	Linux Network Development list <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>
Subject: [PATCH] Re: iproute2 action/policer question

On Mon, Jun 15, 2009 at 09:32:08AM -0400, jamal wrote:
> On Mon, 2009-06-15 at 11:19 +0000, Jarek Poplawski wrote:
> 
> > > This is only a sample but is not working
> 
> It does seem to be working!
> How did you reach conclusion it wasnt working?
> 
> > >         Action statistics:
> > >         Sent 42351 bytes 110 pkt (dropped 0, overlimits 32 requeues 0)
> > >         rate 0bit 0pps backlog 0b 0p requeues 0

Jamal, after looking into act_gact or act_nat I guess we should update
drops here likewise, unless I miss something?

Pawel, if it works for you could you send your "Tested-by"?

Thanks,
Jarek P.
------------------->
pkt_sched: Update drops stats in act_police

Action police statistics could be misleading because drops are not
shown when expected.

With feedback from: Jamal Hadi Salim <hadi@...erus.ca>

Reported-by: =?ISO-8859-2?Q?Pawe=B3_Staszewski?= <pstaszewski@...are.pl>
Signed-off-by: Jarek Poplawski <jarkao2@...il.com>
---

 net/sched/act_police.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index f8f047b..723964c 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -294,6 +294,8 @@ static int tcf_act_police(struct sk_buff *skb, struct tc_action *a,
 	if (police->tcfp_ewma_rate &&
 	    police->tcf_rate_est.bps >= police->tcfp_ewma_rate) {
 		police->tcf_qstats.overlimits++;
+		if (police->tcf_action == TC_ACT_SHOT)
+			police->tcf_qstats.drops++;
 		spin_unlock(&police->tcf_lock);
 		return police->tcf_action;
 	}
@@ -327,6 +329,8 @@ static int tcf_act_police(struct sk_buff *skb, struct tc_action *a,
 	}
 
 	police->tcf_qstats.overlimits++;
+	if (police->tcf_action == TC_ACT_SHOT)
+		police->tcf_qstats.drops++;
 	spin_unlock(&police->tcf_lock);
 	return police->tcf_action;
 }
--
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