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tc: fq_codel: add drop_batch parameter

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Commit 9d18562a2278 ("fq_codel: add batch ability to fq_codel_drop()")
added the new TCA_FQ_CODEL_DROP_BATCH_SIZE parameter, set by default to 64.

Add to tc command the ability to get/set the drop_batch

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Eric Dumazet 2020-04-27 10:51:55 -07:00 committed by Stephen Hemminger
parent d27fc6390c
commit 7868f802e2
1 changed files with 18 additions and 1 deletions
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19
tc/q_fq_codel.c
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@ -54,12 +54,14 @@ static void explain(void)
"[ memory_limit BYTES ]\n"
"[ target TIME ] [ interval TIME ]\n"
"[ quantum BYTES ] [ [no]ecn ]\n"
"[ ce_threshold TIME ]\n");
"[ ce_threshold TIME ]\n"
"[ drop_batch SIZE ]\n");
}
static int fq_codel_parse_opt(struct qdisc_util *qu, int argc, char **argv,
struct nlmsghdr *n, const char *dev)
{
unsigned int drop_batch = 0;
unsigned int limit = 0;
unsigned int flows = 0;
unsigned int target = 0;
@ -89,6 +91,12 @@ static int fq_codel_parse_opt(struct qdisc_util *qu, int argc, char **argv,
fprintf(stderr, "Illegal \"quantum\"\n");
return -1;
}
} else if (strcmp(*argv, "drop_batch") == 0) {
NEXT_ARG();
if (get_unsigned(&drop_batch, *argv, 0)) {
fprintf(stderr, "Illegal \"drop_batch\"\n");
return -1;
}
} else if (strcmp(*argv, "target") == 0) {
NEXT_ARG();
if (get_time(&target, *argv)) {
@ -147,6 +155,8 @@ static int fq_codel_parse_opt(struct qdisc_util *qu, int argc, char **argv,
if (memory != ~0U)
addattr_l(n, 1024, TCA_FQ_CODEL_MEMORY_LIMIT,
&memory, sizeof(memory));
if (drop_batch)
addattr_l(n, 1024, TCA_FQ_CODEL_DROP_BATCH_SIZE, &drop_batch, sizeof(drop_batch));
addattr_nest_end(n, tail);
return 0;
@ -163,6 +173,7 @@ static int fq_codel_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt
unsigned int quantum;
unsigned int ce_threshold;
unsigned int memory_limit;
unsigned int drop_batch;
SPRINT_BUF(b1);
@ -220,6 +231,12 @@ static int fq_codel_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt
if (ecn)
print_bool(PRINT_ANY, "ecn", "ecn ", true);
}
if (tb[TCA_FQ_CODEL_DROP_BATCH_SIZE] &&
RTA_PAYLOAD(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]) >= sizeof(__u32)) {
drop_batch = rta_getattr_u32(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]);
if (drop_batch)
print_uint(PRINT_ANY, "drop_batch", "drop_batch %u ", drop_batch);
}
return 0;
}