linux-kernel - [iproute2-next] action police: make 'mtu' could be set independently in police action

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Message-Id: <20200628014602.13002-1-po.liu@nxp.com>
Date:   Sun, 28 Jun 2020 09:46:02 +0800
From:   Po Liu <po.liu@....com>
To:     dsahern@...il.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     stephen@...workplumber.org, davem@...emloft.net, jhs@...atatu.com,
        vlad@...lov.dev, po.liu@....com, claudiu.manoil@....com,
        vladimir.oltean@....com, alexandru.marginean@....com
Subject: [iproute2-next] action police: make 'mtu' could be set independently in police action

Current police action must set 'rate' and 'burst'. 'mtu' parameter
set the max frame size and could be set alone without 'rate' and 'burst'
in some situation. Offloading to hardware for example, 'mtu' could limit
the flow max frame size.

Signed-off-by: Po Liu <po.liu@....com>
---
 tc/m_police.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tc/m_police.c b/tc/m_police.c
index a5bc20c0..89497f67 100644
--- a/tc/m_police.c
+++ b/tc/m_police.c
@@ -161,8 +161,8 @@ action_ctrl_ok:
 		return -1;
 
 	/* Must at least do late binding, use TB or ewma policing */
-	if (!rate64 && !avrate && !p.index) {
-		fprintf(stderr, "\"rate\" or \"avrate\" MUST be specified.\n");
+	if (!rate64 && !avrate && !p.index && !mtu) {
+		fprintf(stderr, "\"rate\" or \"avrate\" or \"mtu\"MUST be specified.\n");
 		return -1;
 	}
 
-- 
2.17.1