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tbf: support sending burst/mtu to kernel directly

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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>
This commit is contained in:
Yang Yingliang 2014-01-16 11:09:13 +08:00 committed by Stephen Hemminger
parent 58c69b226f
commit a01de0a336
1 changed files with 2 additions and 0 deletions
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2
tc/q_tbf.c
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@ -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;