Code to parse and export this tuneable via netlink is already present in
sched_fq.c of the kernel, so not making it accessible for users would be
a waste of resources.
Signed-off-by: Phil Sutter <p...@nwl.cc>
---
tc/q_fq.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/tc/q_fq.c b/tc/q_fq.c
index e7288c2..7ad3801 100644
--- a/tc/q_fq.c
+++ b/tc/q_fq.c
@@ -54,7 +54,7 @@ static void explain(void)
fprintf(stderr, "Usage: ... fq [ limit PACKETS ] [ flow_limit PACKETS
]\n");
fprintf(stderr, " [ quantum BYTES ] [ initial_quantum
BYTES ]\n");
fprintf(stderr, " [ maxrate RATE ] [ buckets NUMBER ]\n");
- fprintf(stderr, " [ [no]pacing ]\n");
+ fprintf(stderr, " [ [no]pacing ] [ refill_delay TIME ]\n");
}
static unsigned int ilog2(unsigned int val)
@@ -79,12 +79,14 @@ static int fq_parse_opt(struct qdisc_util *qu, int argc,
char **argv,
unsigned int buckets = 0;
unsigned int maxrate;
unsigned int defrate;
+ unsigned int refill_delay;
bool set_plimit = false;
bool set_flow_plimit = false;
bool set_quantum = false;
bool set_initial_quantum = false;
bool set_maxrate = false;
bool set_defrate = false;
+ bool set_refill_delay = false;
int pacing = -1;
struct rtattr *tail;
@@ -137,6 +139,13 @@ static int fq_parse_opt(struct qdisc_util *qu, int argc,
char **argv,
return -1;
}
set_initial_quantum = true;
+ } else if (strcmp(*argv, "refill_delay") == 0) {
+ NEXT_ARG();
+ if (get_time(&refill_delay, *argv)) {
+ fprintf(stderr, "Illegal \"refill_delay\"\n");
+ return -1;
+ }
+ set_refill_delay = true;
} else if (strcmp(*argv, "pacing") == 0) {
pacing = 1;
} else if (strcmp(*argv, "nopacing") == 0) {
@@ -180,6 +189,9 @@ static int fq_parse_opt(struct qdisc_util *qu, int argc,
char **argv,
if (set_defrate)
addattr_l(n, 1024, TCA_FQ_FLOW_DEFAULT_RATE,
&defrate, sizeof(defrate));
+ if (set_refill_delay)
+ addattr_l(n, 1024, TCA_FQ_FLOW_REFILL_DELAY,
+ &refill_delay, sizeof(refill_delay));
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
return 0;
}
@@ -191,6 +203,7 @@ static int fq_print_opt(struct qdisc_util *qu, FILE *f,
struct rtattr *opt)
unsigned int buckets_log;
int pacing;
unsigned int rate, quantum;
+ unsigned int refill_delay;
SPRINT_BUF(b1);
if (opt == NULL)
@@ -243,6 +256,11 @@ static int fq_print_opt(struct qdisc_util *qu, FILE *f,
struct rtattr *opt)
if (rate != 0)
fprintf(f, "defrate %s ", sprint_rate(rate, b1));
}
+ if (tb[TCA_FQ_FLOW_REFILL_DELAY] &&
+ RTA_PAYLOAD(tb[TCA_FQ_FLOW_REFILL_DELAY]) >= sizeof(__u32)) {
+ refill_delay = rta_getattr_u32(tb[TCA_FQ_FLOW_REFILL_DELAY]);
+ fprintf(f, "refill_delay %s ", sprint_time(refill_delay, b1));
+ }
return 0;
}
--
2.1.2
--
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