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tc: sfb: add support for JSON output

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Enable proper JSON output for the SFB Qdisc.
Make the output for options "rehash" and "db" explicit.
Use the long double format specifier to print probability values.
Use sprint_time() to print time values.
Also, fix the indentation in sfb_print_opt().

Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Leslie Monis 2019-12-26 00:34:15 +05:30 committed by Stephen Hemminger
parent 0154d096c5
commit 46d032d002
1 changed files with 45 additions and 22 deletions
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67
tc/q_sfb.c
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@ -143,6 +143,8 @@ static int sfb_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
struct rtattr *tb[__TCA_SFB_MAX];
struct tc_sfb_qopt *qopt;
SPRINT_BUF(b1);
if (opt == NULL)
return 0;
@ -153,14 +155,27 @@ static int sfb_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
if (RTA_PAYLOAD(tb[TCA_SFB_PARMS]) < sizeof(*qopt))
return -1;
fprintf(f,
"limit %d max %d target %d\n"
" increment %.5f decrement %.5f penalty rate %d burst %d (%ums %ums)",
qopt->limit, qopt->max, qopt->bin_size,
(double)qopt->increment / SFB_MAX_PROB,
(double)qopt->decrement / SFB_MAX_PROB,
qopt->penalty_rate, qopt->penalty_burst,
qopt->rehash_interval, qopt->warmup_time);
print_uint(PRINT_JSON, "rehash", NULL, qopt->rehash_interval * 1000);
print_string(PRINT_FP, NULL, "rehash %s ",
sprint_time(qopt->rehash_interval * 1000, b1));
print_uint(PRINT_JSON, "db", NULL, qopt->warmup_time * 1000);
print_string(PRINT_FP, NULL, "db %s ",
sprint_time(qopt->warmup_time * 1000, b1));
print_uint(PRINT_ANY, "limit", "limit %up ", qopt->limit);
print_uint(PRINT_ANY, "max", "max %up ", qopt->max);
print_uint(PRINT_ANY, "target", "target %up ", qopt->bin_size);
print_float(PRINT_ANY, "increment", "increment %lg ",
(double)qopt->increment / SFB_MAX_PROB);
print_float(PRINT_ANY, "decrement", "decrement %lg ",
(double)qopt->decrement / SFB_MAX_PROB);
print_uint(PRINT_ANY, "penalty_rate", "penalty_rate %upps ",
qopt->penalty_rate);
print_uint(PRINT_ANY, "penalty_burst", "penalty_burst %up ",
qopt->penalty_burst);
return 0;
}
@ -168,24 +183,32 @@ static int sfb_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
static int sfb_print_xstats(struct qdisc_util *qu, FILE *f,
struct rtattr *xstats)
{
struct tc_sfb_xstats *st;
struct tc_sfb_xstats *st;
if (xstats == NULL)
return 0;
if (xstats == NULL)
return 0;
if (RTA_PAYLOAD(xstats) < sizeof(*st))
return -1;
if (RTA_PAYLOAD(xstats) < sizeof(*st))
return -1;
st = RTA_DATA(xstats);
fprintf(f,
" earlydrop %u penaltydrop %u bucketdrop %u queuedrop %u childdrop %u marked %u\n"
" maxqlen %u maxprob %.5f avgprob %.5f ",
st->earlydrop, st->penaltydrop, st->bucketdrop, st->queuedrop, st->childdrop,
st->marked,
st->maxqlen, (double)st->maxprob / SFB_MAX_PROB,
(double)st->avgprob / SFB_MAX_PROB);
st = RTA_DATA(xstats);
return 0;
print_uint(PRINT_ANY, "earlydrop", " earlydrop %u", st->earlydrop);
print_uint(PRINT_ANY, "penaltydrop", " penaltydrop %u",
st->penaltydrop);
print_uint(PRINT_ANY, "bucketdrop", " bucketdrop %u", st->bucketdrop);
print_uint(PRINT_ANY, "queuedrop", " queuedrop %u", st->queuedrop);
print_uint(PRINT_ANY, "childdrop", " childdrop %u", st->childdrop);
print_uint(PRINT_ANY, "marked", " marked %u", st->marked);
print_nl();
print_uint(PRINT_ANY, "maxqlen", " maxqlen %u", st->maxqlen);
print_float(PRINT_ANY, "maxprob", " maxprob %lg",
(double)st->maxprob / SFB_MAX_PROB);
print_float(PRINT_ANY, "avgprob", " avgprob %lg",
(double)st->avgprob / SFB_MAX_PROB);
return 0;
}
struct qdisc_util sfb_qdisc_util = {