netdev - [PATCH iproute2 v2 1/2] tbf: support sending burst/mtu to kernel directly

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Message-ID: <1389841754-22008-2-git-send-email-yangyingliang@huawei.com>
Date:	Thu, 16 Jan 2014 11:09:13 +0800
From:	Yang Yingliang <yangyingliang@...wei.com>
To:	<stephen@...workplumber.org>
CC:	<netdev@...r.kernel.org>, <eric.dumazet@...il.com>
Subject: [PATCH iproute2 v2 1/2] tbf: support sending burst/mtu to kernel directly

To avoid loss when transforming burst to buffer in userspace, send
burst/mtu to kernel directly.

Kernel commit 2e04ad424b("sch_tbf: add TBF_BURST/TBF_PBURST attribute")
make it can handle burst/mtu.

Cc: Eric Dumazet <edumazet@...gle.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 tc/q_tbf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tc/q_tbf.c b/tc/q_tbf.c
index 2fbfd3b..f3022b6 100644
--- a/tc/q_tbf.c
+++ b/tc/q_tbf.c
@@ -232,12 +232,14 @@ static int tbf_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nl
 	tail = NLMSG_TAIL(n);
 	addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
 	addattr_l(n, 2024, TCA_TBF_PARMS, &opt, sizeof(opt));
+	addattr_l(n, 2124, TCA_TBF_BURST, &buffer, sizeof(buffer));
 	if (rate64 >= (1ULL << 32))
 		addattr_l(n, 2124, TCA_TBF_RATE64, &rate64, sizeof(rate64));
 	addattr_l(n, 3024, TCA_TBF_RTAB, rtab, 1024);
 	if (opt.peakrate.rate) {
 		if (prate64 >= (1ULL << 32))
 			addattr_l(n, 3124, TCA_TBF_PRATE64, &prate64, sizeof(prate64));
+		addattr_l(n, 3224, TCA_TBF_PBURST, &mtu, sizeof(mtu));
 		addattr_l(n, 4096, TCA_TBF_PTAB, ptab, 1024);
 	}
 	tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
-- 
1.8.0


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