From: Yang Yingliang <yangyingliang@huawei.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
<chenweilong@huawei.com>
Cc: David Howells <dhowells@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
<linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>
Subject: [PATCH] pkt_sched: rate overflow fix
Date: Tue, 2 Jul 2013 18:39:54 +0800 [thread overview]
Message-ID: <51D2ADFA.1090208@huawei.com> (raw)
Use bonding to aggregate two 82599 nics which have 4 ports and max rate is 40gbit.
Then set rate to 35gbit, the rate is overflow.
tc qdisc add dev $bond root handle 1: \
tbf latency 50ms burst 35mb rate 35gbit mtu 64k
tc qdisc show dev $bond
qdisc tbf 1: root refcnt 2 rate 640262Kbit burst 35Mb lat 50.0ms
iperf -c host -t 30 -i 10
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 764 MBytes 641 Mbits/sec
[ 3] 10.0-20.0 sec 730 MBytes 612 Mbits/sec
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
include/uapi/linux/pkt_sched.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 32aef0a..261042c 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -79,7 +79,7 @@ struct tc_ratespec {
unsigned short overhead;
short cell_align;
unsigned short mpu;
- __u32 rate;
+ __u64 rate;
};
#define TC_RTAB_SIZE 1024
--
1.7.12
next reply other threads:[~2013-07-02 10:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-02 10:39 Yang Yingliang [this message]
2013-07-02 15:32 ` [PATCH] pkt_sched: rate overflow fix Eric Dumazet
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