[mirror_iproute2.git] / tc / q_fq.c

/*
 * Fair Queue
 *
 *  Copyright (C) 2013-2015 Eric Dumazet <edumazet@google.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The names of the authors may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, provided that this notice is retained in full, this
 * software may be distributed under the terms of the GNU General
 * Public License ("GPL") version 2, in which case the provisions of the
 * GPL apply INSTEAD OF those given above.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <stdbool.h>

#include "utils.h"
#include "tc_util.h"

static void explain(void)
{
	fprintf(stderr,
		"Usage: ... fq	[ limit PACKETS ] [ flow_limit PACKETS ]\n"
		"		[ quantum BYTES ] [ initial_quantum BYTES ]\n"
		"		[ maxrate RATE  ] [ buckets NUMBER ]\n"
		"		[ [no]pacing ] [ refill_delay TIME ]\n"
		"		[ low_rate_threshold RATE ]\n"
		"		[ orphan_mask MASK]\n"
		"		[ timer_slack TIME]\n"
		"		[ ce_threshold TIME ]\n");
}

static unsigned int ilog2(unsigned int val)
{
	unsigned int res = 0;

	val--;
	while (val) {
		res++;
		val >>= 1;
	}
	return res;
}

static int fq_parse_opt(struct qdisc_util *qu, int argc, char **argv,
			struct nlmsghdr *n, const char *dev)
{
	unsigned int plimit;
	unsigned int flow_plimit;
	unsigned int quantum;
	unsigned int initial_quantum;
	unsigned int buckets = 0;
	unsigned int maxrate;
	unsigned int low_rate_threshold;
	unsigned int defrate;
	unsigned int refill_delay;
	unsigned int orphan_mask;
	unsigned int ce_threshold;
	unsigned int timer_slack;
	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;
	bool set_orphan_mask = false;
	bool set_low_rate_threshold = false;
	bool set_ce_threshold = false;
	bool set_timer_slack = false;
	int pacing = -1;
	struct rtattr *tail;

	while (argc > 0) {
		if (strcmp(*argv, "limit") == 0) {
			NEXT_ARG();
			if (get_unsigned(&plimit, *argv, 0)) {
				fprintf(stderr, "Illegal \"limit\"\n");
				return -1;
			}
			set_plimit = true;
		} else if (strcmp(*argv, "flow_limit") == 0) {
			NEXT_ARG();
			if (get_unsigned(&flow_plimit, *argv, 0)) {
				fprintf(stderr, "Illegal \"flow_limit\"\n");
				return -1;
			}
			set_flow_plimit = true;
		} else if (strcmp(*argv, "buckets") == 0) {
			NEXT_ARG();
			if (get_unsigned(&buckets, *argv, 0)) {
				fprintf(stderr, "Illegal \"buckets\"\n");
				return -1;
			}
		} else if (strcmp(*argv, "maxrate") == 0) {
			NEXT_ARG();
			if (strchr(*argv, '%')) {
				if (get_percent_rate(&maxrate, *argv, dev)) {
					fprintf(stderr, "Illegal \"maxrate\"\n");
					return -1;
				}
			} else if (get_rate(&maxrate, *argv)) {
				fprintf(stderr, "Illegal \"maxrate\"\n");
				return -1;
			}
			set_maxrate = true;
		} else if (strcmp(*argv, "low_rate_threshold") == 0) {
			NEXT_ARG();
			if (get_rate(&low_rate_threshold, *argv)) {
				fprintf(stderr, "Illegal \"low_rate_threshold\"\n");
				return -1;
			}
			set_low_rate_threshold = true;
		} else if (strcmp(*argv, "ce_threshold") == 0) {
			NEXT_ARG();
			if (get_time(&ce_threshold, *argv)) {
				fprintf(stderr, "Illegal \"ce_threshold\"\n");
				return -1;
			}
			set_ce_threshold = true;
		} else if (strcmp(*argv, "timer_slack") == 0) {
			__s64 t64;

			NEXT_ARG();
			if (get_time64(&t64, *argv)) {
				fprintf(stderr, "Illegal \"timer_slack\"\n");
				return -1;
			}
			timer_slack = t64;
			if (timer_slack != t64) {
				fprintf(stderr, "Illegal (out of range) \"timer_slack\"\n");
				return -1;
			}
			set_timer_slack = true;
		} else if (strcmp(*argv, "defrate") == 0) {
			NEXT_ARG();
			if (strchr(*argv, '%')) {
				if (get_percent_rate(&defrate, *argv, dev)) {
					fprintf(stderr, "Illegal \"defrate\"\n");
					return -1;
				}
			} else if (get_rate(&defrate, *argv)) {
				fprintf(stderr, "Illegal \"defrate\"\n");
				return -1;
			}
			set_defrate = true;
		} else if (strcmp(*argv, "quantum") == 0) {
			NEXT_ARG();
			if (get_unsigned(&quantum, *argv, 0)) {
				fprintf(stderr, "Illegal \"quantum\"\n");
				return -1;
			}
			set_quantum = true;
		} else if (strcmp(*argv, "initial_quantum") == 0) {
			NEXT_ARG();
			if (get_unsigned(&initial_quantum, *argv, 0)) {
				fprintf(stderr, "Illegal \"initial_quantum\"\n");
				return -1;
			}
			set_initial_quantum = true;
		} else if (strcmp(*argv, "orphan_mask") == 0) {
			NEXT_ARG();
			if (get_unsigned(&orphan_mask, *argv, 0)) {
				fprintf(stderr, "Illegal \"initial_quantum\"\n");
				return -1;
			}
			set_orphan_mask = 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) {
			pacing = 0;
		} else if (strcmp(*argv, "help") == 0) {
			explain();
			return -1;
		} else {
			fprintf(stderr, "What is \"%s\"?\n", *argv);
			explain();
			return -1;
		}
		argc--; argv++;
	}

	tail = addattr_nest(n, 1024, TCA_OPTIONS);
	if (buckets) {
		unsigned int log = ilog2(buckets);

		addattr_l(n, 1024, TCA_FQ_BUCKETS_LOG,
			  &log, sizeof(log));
	}
	if (set_plimit)
		addattr_l(n, 1024, TCA_FQ_PLIMIT,
			  &plimit, sizeof(plimit));
	if (set_flow_plimit)
		addattr_l(n, 1024, TCA_FQ_FLOW_PLIMIT,
			  &flow_plimit, sizeof(flow_plimit));
	if (set_quantum)
		addattr_l(n, 1024, TCA_FQ_QUANTUM, &quantum, sizeof(quantum));
	if (set_initial_quantum)
		addattr_l(n, 1024, TCA_FQ_INITIAL_QUANTUM,
			  &initial_quantum, sizeof(initial_quantum));
	if (pacing != -1)
		addattr_l(n, 1024, TCA_FQ_RATE_ENABLE,
			  &pacing, sizeof(pacing));
	if (set_maxrate)
		addattr_l(n, 1024, TCA_FQ_FLOW_MAX_RATE,
			  &maxrate, sizeof(maxrate));
	if (set_low_rate_threshold)
		addattr_l(n, 1024, TCA_FQ_LOW_RATE_THRESHOLD,
			  &low_rate_threshold, sizeof(low_rate_threshold));
	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));
	if (set_orphan_mask)
		addattr_l(n, 1024, TCA_FQ_ORPHAN_MASK,
			  &orphan_mask, sizeof(orphan_mask));
	if (set_ce_threshold)
		addattr_l(n, 1024, TCA_FQ_CE_THRESHOLD,
			  &ce_threshold, sizeof(ce_threshold));
    if (set_timer_slack)
		addattr_l(n, 1024, TCA_FQ_TIMER_SLACK,
			  &timer_slack, sizeof(timer_slack));
	addattr_nest_end(n, tail);
	return 0;
}

static int fq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
{
	struct rtattr *tb[TCA_FQ_MAX + 1];
	unsigned int plimit, flow_plimit;
	unsigned int buckets_log;
	int pacing;
	unsigned int rate, quantum;
	unsigned int refill_delay;
	unsigned int orphan_mask;
	unsigned int ce_threshold;
	unsigned int timer_slack;

	SPRINT_BUF(b1);

	if (opt == NULL)
		return 0;

	parse_rtattr_nested(tb, TCA_FQ_MAX, opt);

	if (tb[TCA_FQ_PLIMIT] &&
	    RTA_PAYLOAD(tb[TCA_FQ_PLIMIT]) >= sizeof(__u32)) {
		plimit = rta_getattr_u32(tb[TCA_FQ_PLIMIT]);
		print_uint(PRINT_ANY, "limit", "limit %up ", plimit);
	}
	if (tb[TCA_FQ_FLOW_PLIMIT] &&
	    RTA_PAYLOAD(tb[TCA_FQ_FLOW_PLIMIT]) >= sizeof(__u32)) {
		flow_plimit = rta_getattr_u32(tb[TCA_FQ_FLOW_PLIMIT]);
		print_uint(PRINT_ANY, "flow_limit", "flow_limit %up ",
			   flow_plimit);
	}
	if (tb[TCA_FQ_BUCKETS_LOG] &&
	    RTA_PAYLOAD(tb[TCA_FQ_BUCKETS_LOG]) >= sizeof(__u32)) {
		buckets_log = rta_getattr_u32(tb[TCA_FQ_BUCKETS_LOG]);
		print_uint(PRINT_ANY, "buckets", "buckets %u ",
			   1U << buckets_log);
	}
	if (tb[TCA_FQ_ORPHAN_MASK] &&
	    RTA_PAYLOAD(tb[TCA_FQ_ORPHAN_MASK]) >= sizeof(__u32)) {
		orphan_mask = rta_getattr_u32(tb[TCA_FQ_ORPHAN_MASK]);
		print_uint(PRINT_ANY, "orphan_mask", "orphan_mask %u ",
			   orphan_mask);
	}
	if (tb[TCA_FQ_RATE_ENABLE] &&
	    RTA_PAYLOAD(tb[TCA_FQ_RATE_ENABLE]) >= sizeof(int)) {
		pacing = rta_getattr_u32(tb[TCA_FQ_RATE_ENABLE]);
		if (pacing == 0)
			print_bool(PRINT_ANY, "pacing", "nopacing ", false);
	}
	if (tb[TCA_FQ_QUANTUM] &&
	    RTA_PAYLOAD(tb[TCA_FQ_QUANTUM]) >= sizeof(__u32)) {
		quantum = rta_getattr_u32(tb[TCA_FQ_QUANTUM]);
		print_uint(PRINT_JSON, "quantum", NULL, quantum);
		print_string(PRINT_FP, NULL, "quantum %s ",
			     sprint_size(quantum, b1));
	}
	if (tb[TCA_FQ_INITIAL_QUANTUM] &&
	    RTA_PAYLOAD(tb[TCA_FQ_INITIAL_QUANTUM]) >= sizeof(__u32)) {
		quantum = rta_getattr_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
		print_uint(PRINT_JSON, "initial_quantum", NULL, quantum);
		print_string(PRINT_FP, NULL, "initial_quantum %s ",
			     sprint_size(quantum, b1));
	}
	if (tb[TCA_FQ_FLOW_MAX_RATE] &&
	    RTA_PAYLOAD(tb[TCA_FQ_FLOW_MAX_RATE]) >= sizeof(__u32)) {
		rate = rta_getattr_u32(tb[TCA_FQ_FLOW_MAX_RATE]);

		if (rate != ~0U) {
			print_uint(PRINT_JSON, "maxrate", NULL, rate);
			print_string(PRINT_FP, NULL, "maxrate %s ",
				     sprint_rate(rate, b1));
		}
	}
	if (tb[TCA_FQ_FLOW_DEFAULT_RATE] &&
	    RTA_PAYLOAD(tb[TCA_FQ_FLOW_DEFAULT_RATE]) >= sizeof(__u32)) {
		rate = rta_getattr_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);

		if (rate != 0) {
			print_uint(PRINT_JSON, "defrate", NULL, rate);
			print_string(PRINT_FP, NULL, "defrate %s ",
				     sprint_rate(rate, b1));
		}
	}
	if (tb[TCA_FQ_LOW_RATE_THRESHOLD] &&
	    RTA_PAYLOAD(tb[TCA_FQ_LOW_RATE_THRESHOLD]) >= sizeof(__u32)) {
		rate = rta_getattr_u32(tb[TCA_FQ_LOW_RATE_THRESHOLD]);

		if (rate != 0) {
			print_uint(PRINT_JSON, "low_rate_threshold", NULL,
				   rate);
			print_string(PRINT_FP, NULL, "low_rate_threshold %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]);
		print_uint(PRINT_JSON, "refill_delay", NULL, refill_delay);
		print_string(PRINT_FP, NULL, "refill_delay %s ",
			     sprint_time(refill_delay, b1));
	}

	if (tb[TCA_FQ_CE_THRESHOLD] &&
	    RTA_PAYLOAD(tb[TCA_FQ_CE_THRESHOLD]) >= sizeof(__u32)) {
		ce_threshold = rta_getattr_u32(tb[TCA_FQ_CE_THRESHOLD]);
		if (ce_threshold != ~0U) {
			print_uint(PRINT_JSON, "ce_threshold", NULL,
				   ce_threshold);
			print_string(PRINT_FP, NULL, "ce_threshold %s ",
				     sprint_time(ce_threshold, b1));
		}
	}

	if (tb[TCA_FQ_TIMER_SLACK] &&
	    RTA_PAYLOAD(tb[TCA_FQ_TIMER_SLACK]) >= sizeof(__u32)) {
		timer_slack = rta_getattr_u32(tb[TCA_FQ_TIMER_SLACK]);
		print_uint(PRINT_JSON, "timer_slack", NULL, timer_slack);
		print_string(PRINT_FP, NULL, "timer_slack %s ",
			     sprint_time64(timer_slack, b1));
	}

	return 0;
}

static int fq_print_xstats(struct qdisc_util *qu, FILE *f,
			   struct rtattr *xstats)
{
	struct tc_fq_qd_stats *st, _st;

	SPRINT_BUF(b1);

	if (xstats == NULL)
		return 0;

	memset(&_st, 0, sizeof(_st));
	memcpy(&_st, RTA_DATA(xstats), min(RTA_PAYLOAD(xstats), sizeof(*st)));

	st = &_st;

	print_uint(PRINT_ANY, "flows", "  flows %u", st->flows);
	print_uint(PRINT_ANY, "inactive", " (inactive %u", st->inactive_flows);
	print_uint(PRINT_ANY, "throttled", " throttled %u)",
		   st->throttled_flows);

	if (st->time_next_delayed_flow > 0) {
		print_lluint(PRINT_JSON, "next_packet_delay", NULL,
			     st->time_next_delayed_flow);
		print_string(PRINT_FP, NULL, " next_packet_delay %s",
			     sprint_time64(st->time_next_delayed_flow, b1));
	}

	print_nl();
	print_lluint(PRINT_ANY, "gc", "  gc %llu", st->gc_flows);
	print_lluint(PRINT_ANY, "highprio", " highprio %llu",
		     st->highprio_packets);

	if (st->tcp_retrans)
		print_lluint(PRINT_ANY, "retrans", " retrans %llu",
			     st->tcp_retrans);

	print_lluint(PRINT_ANY, "throttled", " throttled %llu", st->throttled);

	if (st->unthrottle_latency_ns) {
		print_uint(PRINT_JSON, "latency", NULL,
			   st->unthrottle_latency_ns);
		print_string(PRINT_FP, NULL, " latency %s",
			     sprint_time64(st->unthrottle_latency_ns, b1));
	}

	if (st->ce_mark)
		print_lluint(PRINT_ANY, "ce_mark", " ce_mark %llu",
			     st->ce_mark);

	if (st->flows_plimit)
		print_lluint(PRINT_ANY, "flows_plimit", " flows_plimit %llu",
			     st->flows_plimit);

	if (st->pkts_too_long || st->allocation_errors) {
		print_nl();
		print_lluint(PRINT_ANY, "pkts_too_long",
			     "  pkts_too_long %llu", st->pkts_too_long);
		print_lluint(PRINT_ANY, "alloc_errors", " alloc_errors %llu",
			     st->allocation_errors);
	}

	return 0;
}

struct qdisc_util fq_qdisc_util = {
	.id		= "fq",
	.parse_qopt	= fq_parse_opt,
	.print_qopt	= fq_print_opt,
	.print_xstats	= fq_print_xstats,
};
Commit	Line	Data
bc113e46 ED	1	/*
	2	* Fair Queue
	3	*
8d5bd8c3	4	* Copyright (C) 2013-2015 Eric Dumazet <edumazet@google.com>
bc113e46 ED	5	*
	6	* Redistribution and use in source and binary forms, with or without
	7	* modification, are permitted provided that the following conditions
	8	* are met:
	9	* 1. Redistributions of source code must retain the above copyright
	10	* notice, this list of conditions, and the following disclaimer,
	11	* without modification.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. The names of the authors may not be used to endorse or promote products
	16	* derived from this software without specific prior written permission.
	17	*
	18	* Alternatively, provided that this notice is retained in full, this
	19	* software may be distributed under the terms of the GNU General
	20	* Public License ("GPL") version 2, in which case the provisions of the
	21	* GPL apply INSTEAD OF those given above.
	22	*
	23	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	24	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	25	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	26	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	27	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	28	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	29	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	30	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	31	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	32	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	33	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
	34	* DAMAGE.
	35	*
	36	*/
	37
	38	#include <stdio.h>
	39	#include <stdlib.h>
	40	#include <unistd.h>
bc113e46 ED	41	#include <fcntl.h>
	42	#include <sys/socket.h>
	43	#include <netinet/in.h>
	44	#include <arpa/inet.h>
	45	#include <string.h>
aeb199d5	46	#include <stdbool.h>
bc113e46 ED	47
	48	#include "utils.h"
	49	#include "tc_util.h"
	50
	51	static void explain(void)
	52	{
8589eb4e MC	53	fprintf(stderr,
	54	"Usage: ... fq [ limit PACKETS ] [ flow_limit PACKETS ]\n"
	55	" [ quantum BYTES ] [ initial_quantum BYTES ]\n"
	56	" [ maxrate RATE ] [ buckets NUMBER ]\n"
	57	" [ [no]pacing ] [ refill_delay TIME ]\n"
	58	" [ low_rate_threshold RATE ]\n"
	59	" [ orphan_mask MASK]\n"
be9ca9d5	60	" [ timer_slack TIME]\n"
8589eb4e	61	" [ ce_threshold TIME ]\n");
bc113e46 ED	62	}
	63
	64	static unsigned int ilog2(unsigned int val)
	65	{
	66	unsigned int res = 0;
	67
	68	val--;
	69	while (val) {
	70	res++;
	71	val >>= 1;
	72	}
	73	return res;
	74	}
	75
	76	static int fq_parse_opt(struct qdisc_util qu, int argc, char *argv,
927e3cfb	77	struct nlmsghdr n, const char dev)
bc113e46	78	{
aeb199d5 YY	79	unsigned int plimit;
	80	unsigned int flow_plimit;
	81	unsigned int quantum;
	82	unsigned int initial_quantum;
bc113e46	83	unsigned int buckets = 0;
aeb199d5	84	unsigned int maxrate;
ff28b751	85	unsigned int low_rate_threshold;
aeb199d5	86	unsigned int defrate;
565af7b8	87	unsigned int refill_delay;
8d5bd8c3	88	unsigned int orphan_mask;
55e106c4	89	unsigned int ce_threshold;
be9ca9d5	90	unsigned int timer_slack;
aeb199d5 YY	91	bool set_plimit = false;
	92	bool set_flow_plimit = false;
	93	bool set_quantum = false;
	94	bool set_initial_quantum = false;
	95	bool set_maxrate = false;
	96	bool set_defrate = false;
565af7b8	97	bool set_refill_delay = false;
8d5bd8c3	98	bool set_orphan_mask = false;
ff28b751	99	bool set_low_rate_threshold = false;
55e106c4	100	bool set_ce_threshold = false;
be9ca9d5	101	bool set_timer_slack = false;
bc113e46 ED	102	int pacing = -1;
	103	struct rtattr *tail;
	104
	105	while (argc > 0) {
	106	if (strcmp(*argv, "limit") == 0) {
	107	NEXT_ARG();
	108	if (get_unsigned(&plimit, *argv, 0)) {
	109	fprintf(stderr, "Illegal \"limit\"\n");
	110	return -1;
	111	}
aeb199d5	112	set_plimit = true;
bc113e46 ED	113	} else if (strcmp(*argv, "flow_limit") == 0) {
	114	NEXT_ARG();
	115	if (get_unsigned(&flow_plimit, *argv, 0)) {
	116	fprintf(stderr, "Illegal \"flow_limit\"\n");
	117	return -1;
	118	}
aeb199d5	119	set_flow_plimit = true;
bc113e46 ED	120	} else if (strcmp(*argv, "buckets") == 0) {
	121	NEXT_ARG();
	122	if (get_unsigned(&buckets, *argv, 0)) {
	123	fprintf(stderr, "Illegal \"buckets\"\n");
	124	return -1;
	125	}
	126	} else if (strcmp(*argv, "maxrate") == 0) {
	127	NEXT_ARG();
927e3cfb ND	128	if (strchr(*argv, '%')) {
	129	if (get_percent_rate(&maxrate, *argv, dev)) {
	130	fprintf(stderr, "Illegal \"maxrate\"\n");
	131	return -1;
	132	}
	133	} else if (get_rate(&maxrate, *argv)) {
bc113e46 ED	134	fprintf(stderr, "Illegal \"maxrate\"\n");
	135	return -1;
	136	}
aeb199d5	137	set_maxrate = true;
ff28b751 ED	138	} else if (strcmp(*argv, "low_rate_threshold") == 0) {
	139	NEXT_ARG();
	140	if (get_rate(&low_rate_threshold, *argv)) {
	141	fprintf(stderr, "Illegal \"low_rate_threshold\"\n");
	142	return -1;
	143	}
	144	set_low_rate_threshold = true;
55e106c4 ED	145	} else if (strcmp(*argv, "ce_threshold") == 0) {
	146	NEXT_ARG();
	147	if (get_time(&ce_threshold, *argv)) {
	148	fprintf(stderr, "Illegal \"ce_threshold\"\n");
	149	return -1;
	150	}
	151	set_ce_threshold = true;
be9ca9d5 ED	152	} else if (strcmp(*argv, "timer_slack") == 0) {
	153	__s64 t64;
	154
	155	NEXT_ARG();
	156	if (get_time64(&t64, *argv)) {
	157	fprintf(stderr, "Illegal \"timer_slack\"\n");
	158	return -1;
	159	}
	160	timer_slack = t64;
	161	if (timer_slack != t64) {
	162	fprintf(stderr, "Illegal (out of range) \"timer_slack\"\n");
	163	return -1;
	164	}
	165	set_timer_slack = true;
bc113e46 ED	166	} else if (strcmp(*argv, "defrate") == 0) {
bc113e46 ED	167	NEXT_ARG();
927e3cfb ND	168	if (strchr(*argv, '%')) {
	169	if (get_percent_rate(&defrate, *argv, dev)) {
	170	fprintf(stderr, "Illegal \"defrate\"\n");
	171	return -1;
	172	}
	173	} else if (get_rate(&defrate, *argv)) {
bc113e46 ED	174	fprintf(stderr, "Illegal \"defrate\"\n");
	175	return -1;
	176	}
aeb199d5	177	set_defrate = true;
bc113e46 ED	178	} else if (strcmp(*argv, "quantum") == 0) {
	179	NEXT_ARG();
	180	if (get_unsigned(&quantum, *argv, 0)) {
	181	fprintf(stderr, "Illegal \"quantum\"\n");
	182	return -1;
	183	}
aeb199d5	184	set_quantum = true;
bc113e46 ED	185	} else if (strcmp(*argv, "initial_quantum") == 0) {
	186	NEXT_ARG();
	187	if (get_unsigned(&initial_quantum, *argv, 0)) {
	188	fprintf(stderr, "Illegal \"initial_quantum\"\n");
	189	return -1;
	190	}
aeb199d5	191	set_initial_quantum = true;
8d5bd8c3 ED	192	} else if (strcmp(*argv, "orphan_mask") == 0) {
	193	NEXT_ARG();
	194	if (get_unsigned(&orphan_mask, *argv, 0)) {
	195	fprintf(stderr, "Illegal \"initial_quantum\"\n");
	196	return -1;
	197	}
	198	set_orphan_mask = true;
565af7b8 PS	199	} else if (strcmp(*argv, "refill_delay") == 0) {
	200	NEXT_ARG();
	201	if (get_time(&refill_delay, *argv)) {
	202	fprintf(stderr, "Illegal \"refill_delay\"\n");
	203	return -1;
	204	}
	205	set_refill_delay = true;
bc113e46 ED	206	} else if (strcmp(*argv, "pacing") == 0) {
	207	pacing = 1;
	208	} else if (strcmp(*argv, "nopacing") == 0) {
	209	pacing = 0;
	210	} else if (strcmp(*argv, "help") == 0) {
	211	explain();
	212	return -1;
	213	} else {
	214	fprintf(stderr, "What is \"%s\"?\n", *argv);
	215	explain();
	216	return -1;
	217	}
	218	argc--; argv++;
	219	}
	220
c14f9d92	221	tail = addattr_nest(n, 1024, TCA_OPTIONS);
bc113e46 ED	222	if (buckets) {
	223	unsigned int log = ilog2(buckets);
	224
	225	addattr_l(n, 1024, TCA_FQ_BUCKETS_LOG,
	226	&log, sizeof(log));
	227	}
aeb199d5	228	if (set_plimit)
bc113e46 ED	229	addattr_l(n, 1024, TCA_FQ_PLIMIT,
bc113e46 ED	230	&plimit, sizeof(plimit));
aeb199d5	231	if (set_flow_plimit)
bc113e46 ED	232	addattr_l(n, 1024, TCA_FQ_FLOW_PLIMIT,
bc113e46 ED	233	&flow_plimit, sizeof(flow_plimit));
aeb199d5	234	if (set_quantum)
bc113e46	235	addattr_l(n, 1024, TCA_FQ_QUANTUM, &quantum, sizeof(quantum));
aeb199d5	236	if (set_initial_quantum)
bc113e46 ED	237	addattr_l(n, 1024, TCA_FQ_INITIAL_QUANTUM,
	238	&initial_quantum, sizeof(initial_quantum));
	239	if (pacing != -1)
	240	addattr_l(n, 1024, TCA_FQ_RATE_ENABLE,
	241	&pacing, sizeof(pacing));
aeb199d5	242	if (set_maxrate)
bc113e46 ED	243	addattr_l(n, 1024, TCA_FQ_FLOW_MAX_RATE,
bc113e46 ED	244	&maxrate, sizeof(maxrate));
ff28b751 ED	245	if (set_low_rate_threshold)
	246	addattr_l(n, 1024, TCA_FQ_LOW_RATE_THRESHOLD,
	247	&low_rate_threshold, sizeof(low_rate_threshold));
aeb199d5	248	if (set_defrate)
bc113e46 ED	249	addattr_l(n, 1024, TCA_FQ_FLOW_DEFAULT_RATE,
bc113e46 ED	250	&defrate, sizeof(defrate));
565af7b8 PS	251	if (set_refill_delay)
565af7b8 PS	252	addattr_l(n, 1024, TCA_FQ_FLOW_REFILL_DELAY,
8fe98398	253	&refill_delay, sizeof(refill_delay));
8d5bd8c3 ED	254	if (set_orphan_mask)
8d5bd8c3 ED	255	addattr_l(n, 1024, TCA_FQ_ORPHAN_MASK,
78ace1c2	256	&orphan_mask, sizeof(orphan_mask));
55e106c4 ED	257	if (set_ce_threshold)
	258	addattr_l(n, 1024, TCA_FQ_CE_THRESHOLD,
	259	&ce_threshold, sizeof(ce_threshold));
be9ca9d5 ED	260	if (set_timer_slack)
	261	addattr_l(n, 1024, TCA_FQ_TIMER_SLACK,
	262	&timer_slack, sizeof(timer_slack));
c14f9d92	263	addattr_nest_end(n, tail);
bc113e46 ED	264	return 0;
	265	}
	266
	267	static int fq_print_opt(struct qdisc_util qu, FILE f, struct rtattr *opt)
	268	{
	269	struct rtattr *tb[TCA_FQ_MAX + 1];
	270	unsigned int plimit, flow_plimit;
	271	unsigned int buckets_log;
	272	int pacing;
	273	unsigned int rate, quantum;
565af7b8	274	unsigned int refill_delay;
8d5bd8c3	275	unsigned int orphan_mask;
55e106c4	276	unsigned int ce_threshold;
be9ca9d5	277	unsigned int timer_slack;
32a121cb	278
bc113e46 ED	279	SPRINT_BUF(b1);
	280
	281	if (opt == NULL)
	282	return 0;
	283
	284	parse_rtattr_nested(tb, TCA_FQ_MAX, opt);
	285
	286	if (tb[TCA_FQ_PLIMIT] &&
	287	RTA_PAYLOAD(tb[TCA_FQ_PLIMIT]) >= sizeof(__u32)) {
	288	plimit = rta_getattr_u32(tb[TCA_FQ_PLIMIT]);
d15e2bfc	289	print_uint(PRINT_ANY, "limit", "limit %up ", plimit);
bc113e46 ED	290	}
	291	if (tb[TCA_FQ_FLOW_PLIMIT] &&
	292	RTA_PAYLOAD(tb[TCA_FQ_FLOW_PLIMIT]) >= sizeof(__u32)) {
	293	flow_plimit = rta_getattr_u32(tb[TCA_FQ_FLOW_PLIMIT]);
d15e2bfc LM	294	print_uint(PRINT_ANY, "flow_limit", "flow_limit %up ",
d15e2bfc LM	295	flow_plimit);
bc113e46 ED	296	}
	297	if (tb[TCA_FQ_BUCKETS_LOG] &&
	298	RTA_PAYLOAD(tb[TCA_FQ_BUCKETS_LOG]) >= sizeof(__u32)) {
	299	buckets_log = rta_getattr_u32(tb[TCA_FQ_BUCKETS_LOG]);
d15e2bfc LM	300	print_uint(PRINT_ANY, "buckets", "buckets %u ",
d15e2bfc LM	301	1U << buckets_log);
bc113e46	302	}
8d5bd8c3 ED	303	if (tb[TCA_FQ_ORPHAN_MASK] &&
	304	RTA_PAYLOAD(tb[TCA_FQ_ORPHAN_MASK]) >= sizeof(__u32)) {
	305	orphan_mask = rta_getattr_u32(tb[TCA_FQ_ORPHAN_MASK]);
d15e2bfc LM	306	print_uint(PRINT_ANY, "orphan_mask", "orphan_mask %u ",
d15e2bfc LM	307	orphan_mask);
8d5bd8c3	308	}
bc113e46 ED	309	if (tb[TCA_FQ_RATE_ENABLE] &&
	310	RTA_PAYLOAD(tb[TCA_FQ_RATE_ENABLE]) >= sizeof(int)) {
	311	pacing = rta_getattr_u32(tb[TCA_FQ_RATE_ENABLE]);
	312	if (pacing == 0)
d15e2bfc	313	print_bool(PRINT_ANY, "pacing", "nopacing ", false);
bc113e46 ED	314	}
	315	if (tb[TCA_FQ_QUANTUM] &&
	316	RTA_PAYLOAD(tb[TCA_FQ_QUANTUM]) >= sizeof(__u32)) {
	317	quantum = rta_getattr_u32(tb[TCA_FQ_QUANTUM]);
d15e2bfc LM	318	print_uint(PRINT_JSON, "quantum", NULL, quantum);
	319	print_string(PRINT_FP, NULL, "quantum %s ",
	320	sprint_size(quantum, b1));
bc113e46 ED	321	}
	322	if (tb[TCA_FQ_INITIAL_QUANTUM] &&
	323	RTA_PAYLOAD(tb[TCA_FQ_INITIAL_QUANTUM]) >= sizeof(__u32)) {
	324	quantum = rta_getattr_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
d15e2bfc LM	325	print_uint(PRINT_JSON, "initial_quantum", NULL, quantum);
	326	print_string(PRINT_FP, NULL, "initial_quantum %s ",
	327	sprint_size(quantum, b1));
bc113e46 ED	328	}
	329	if (tb[TCA_FQ_FLOW_MAX_RATE] &&
	330	RTA_PAYLOAD(tb[TCA_FQ_FLOW_MAX_RATE]) >= sizeof(__u32)) {
	331	rate = rta_getattr_u32(tb[TCA_FQ_FLOW_MAX_RATE]);
	332
d15e2bfc LM	333	if (rate != ~0U) {
	334	print_uint(PRINT_JSON, "maxrate", NULL, rate);
	335	print_string(PRINT_FP, NULL, "maxrate %s ",
	336	sprint_rate(rate, b1));
	337	}
bc113e46 ED	338	}
	339	if (tb[TCA_FQ_FLOW_DEFAULT_RATE] &&
	340	RTA_PAYLOAD(tb[TCA_FQ_FLOW_DEFAULT_RATE]) >= sizeof(__u32)) {
	341	rate = rta_getattr_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);
	342
d15e2bfc LM	343	if (rate != 0) {
	344	print_uint(PRINT_JSON, "defrate", NULL, rate);
	345	print_string(PRINT_FP, NULL, "defrate %s ",
	346	sprint_rate(rate, b1));
	347	}
bc113e46	348	}
ff28b751 ED	349	if (tb[TCA_FQ_LOW_RATE_THRESHOLD] &&
	350	RTA_PAYLOAD(tb[TCA_FQ_LOW_RATE_THRESHOLD]) >= sizeof(__u32)) {
	351	rate = rta_getattr_u32(tb[TCA_FQ_LOW_RATE_THRESHOLD]);
	352
d15e2bfc LM	353	if (rate != 0) {
	354	print_uint(PRINT_JSON, "low_rate_threshold", NULL,
	355	rate);
	356	print_string(PRINT_FP, NULL, "low_rate_threshold %s ",
	357	sprint_rate(rate, b1));
	358	}
ff28b751	359	}
565af7b8 PS	360	if (tb[TCA_FQ_FLOW_REFILL_DELAY] &&
	361	RTA_PAYLOAD(tb[TCA_FQ_FLOW_REFILL_DELAY]) >= sizeof(__u32)) {
	362	refill_delay = rta_getattr_u32(tb[TCA_FQ_FLOW_REFILL_DELAY]);
d15e2bfc LM	363	print_uint(PRINT_JSON, "refill_delay", NULL, refill_delay);
	364	print_string(PRINT_FP, NULL, "refill_delay %s ",
	365	sprint_time(refill_delay, b1));
565af7b8	366	}
bc113e46	367
55e106c4 ED	368	if (tb[TCA_FQ_CE_THRESHOLD] &&
	369	RTA_PAYLOAD(tb[TCA_FQ_CE_THRESHOLD]) >= sizeof(__u32)) {
	370	ce_threshold = rta_getattr_u32(tb[TCA_FQ_CE_THRESHOLD]);
d15e2bfc LM	371	if (ce_threshold != ~0U) {
	372	print_uint(PRINT_JSON, "ce_threshold", NULL,
	373	ce_threshold);
	374	print_string(PRINT_FP, NULL, "ce_threshold %s ",
	375	sprint_time(ce_threshold, b1));
	376	}
55e106c4 ED	377	}
55e106c4 ED	378
be9ca9d5 ED	379	if (tb[TCA_FQ_TIMER_SLACK] &&
	380	RTA_PAYLOAD(tb[TCA_FQ_TIMER_SLACK]) >= sizeof(__u32)) {
	381	timer_slack = rta_getattr_u32(tb[TCA_FQ_TIMER_SLACK]);
0ecb90b3 ED	382	print_uint(PRINT_JSON, "timer_slack", NULL, timer_slack);
	383	print_string(PRINT_FP, NULL, "timer_slack %s ",
	384	sprint_time64(timer_slack, b1));
be9ca9d5 ED	385	}
be9ca9d5 ED	386
bc113e46 ED	387	return 0;
	388	}
	389
	390	static int fq_print_xstats(struct qdisc_util qu, FILE f,
	391	struct rtattr *xstats)
	392	{
55e106c4	393	struct tc_fq_qd_stats *st, _st;
bc113e46	394
d15e2bfc LM	395	SPRINT_BUF(b1);
d15e2bfc LM	396
bc113e46 ED	397	if (xstats == NULL)
	398	return 0;
	399
55e106c4 ED	400	memset(&_st, 0, sizeof(_st));
55e106c4 ED	401	memcpy(&_st, RTA_DATA(xstats), min(RTA_PAYLOAD(xstats), sizeof(*st)));
bc113e46	402
55e106c4	403	st = &_st;
bc113e46	404
d15e2bfc LM	405	print_uint(PRINT_ANY, "flows", " flows %u", st->flows);
	406	print_uint(PRINT_ANY, "inactive", " (inactive %u", st->inactive_flows);
	407	print_uint(PRINT_ANY, "throttled", " throttled %u)",
	408	st->throttled_flows);
bc113e46	409
d15e2bfc LM	410	if (st->time_next_delayed_flow > 0) {
	411	print_lluint(PRINT_JSON, "next_packet_delay", NULL,
	412	st->time_next_delayed_flow);
	413	print_string(PRINT_FP, NULL, " next_packet_delay %s",
	414	sprint_time64(st->time_next_delayed_flow, b1));
	415	}
bc113e46	416
d15e2bfc LM	417	print_nl();
	418	print_lluint(PRINT_ANY, "gc", " gc %llu", st->gc_flows);
	419	print_lluint(PRINT_ANY, "highprio", " highprio %llu",
	420	st->highprio_packets);
bc113e46 ED	421
bc113e46 ED	422	if (st->tcp_retrans)
d15e2bfc LM	423	print_lluint(PRINT_ANY, "retrans", " retrans %llu",
d15e2bfc LM	424	st->tcp_retrans);
bc113e46	425
d15e2bfc	426	print_lluint(PRINT_ANY, "throttled", " throttled %llu", st->throttled);
bc113e46	427
d15e2bfc LM	428	if (st->unthrottle_latency_ns) {
	429	print_uint(PRINT_JSON, "latency", NULL,
	430	st->unthrottle_latency_ns);
	431	print_string(PRINT_FP, NULL, " latency %s",
	432	sprint_time64(st->unthrottle_latency_ns, b1));
	433	}
39f8caeb	434
55e106c4	435	if (st->ce_mark)
d15e2bfc LM	436	print_lluint(PRINT_ANY, "ce_mark", " ce_mark %llu",
d15e2bfc LM	437	st->ce_mark);
55e106c4	438
bc113e46	439	if (st->flows_plimit)
d15e2bfc LM	440	print_lluint(PRINT_ANY, "flows_plimit", " flows_plimit %llu",
	441	st->flows_plimit);
	442
	443	if (st->pkts_too_long \|\| st->allocation_errors) {
	444	print_nl();
	445	print_lluint(PRINT_ANY, "pkts_too_long",
	446	" pkts_too_long %llu", st->pkts_too_long);
0ecb90b3	447	print_lluint(PRINT_ANY, "alloc_errors", " alloc_errors %llu",
d15e2bfc LM	448	st->allocation_errors);
d15e2bfc LM	449	}
bc113e46 ED	450
	451	return 0;
	452	}
	453
	454	struct qdisc_util fq_qdisc_util = {
	455	.id = "fq",
	456	.parse_qopt = fq_parse_opt,
	457	.print_qopt = fq_print_opt,
	458	.print_xstats = fq_print_xstats,
	459	};