diff mbox series

[net-next,v4,5/5] net: openvswitch: use u64 for meter bucket

Message ID 1587686886-16347-6-git-send-email-xiangxia.m.yue@gmail.com
State Superseded
Headers show
Series [net-next,v4,1/5] net: openvswitch: expand the meters supported number | expand

Commit Message

Tonghao Zhang April 24, 2020, 12:08 a.m. UTC 
From: Tonghao Zhang <xiangxia.m.yue@gmail.com>

When setting the meter rate to 4+Gbps, there is an
overflow, the meters don't work as expected.

Cc: Pravin B Shelar <pshelar@ovn.org>
Cc: Andy Zhou <azhou@ovn.org>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
---
 net/openvswitch/meter.c | 2 +-
 net/openvswitch/meter.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c
index e36b464b32a5..915f31123f23 100644
--- a/net/openvswitch/meter.c
+++ b/net/openvswitch/meter.c
@@ -392,7 +392,7 @@  static struct dp_meter *dp_meter_create(struct nlattr **a)
 		 *
 		 * Start with a full bucket.
 		 */
-		band->bucket = (band->burst_size + band->rate) * 1000;
+		band->bucket = (band->burst_size + band->rate) * 1000ULL;
 		band_max_delta_t = band->bucket / band->rate;
 		if (band_max_delta_t > meter->max_delta_t)
 			meter->max_delta_t = band_max_delta_t;
diff --git a/net/openvswitch/meter.h b/net/openvswitch/meter.h
index 61a3ca43cd77..0c33889a8515 100644
--- a/net/openvswitch/meter.h
+++ b/net/openvswitch/meter.h
@@ -26,7 +26,7 @@  struct dp_meter_band {
 	u32 type;
 	u32 rate;
 	u32 burst_size;
-	u32 bucket; /* 1/1000 packets, or in bits */
+	u64 bucket; /* 1/1000 packets, or in bits */
 	struct ovs_flow_stats stats;
 };