From: Yang Yingliang <yangyingliang@huawei.com>
Date: Thu, 16 Jan 2014 03:09:13 +0000 (+0800)
Subject: tbf: support sending burst/mtu to kernel directly
X-Git-Tag: v3.14.0~27^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a01de0a336d96b74810f0e544a40983012aaee81;p=thirdparty%2Fiproute2.git

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@google.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---

diff --git a/tc/q_tbf.c b/tc/q_tbf.c
index 2fbfd3b5f..f3022b65f 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;