tc/q_fq_pie.c - pub/scm/network/iproute2/iproute2-next - Git at Google

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Flow Queue PIE
  *
  * Copyright (C) 2019 Mohit P. Tahiliani <tahiliani@nitk.edu.in>
  * Copyright (C) 2019 Sachin D. Patil <sdp.sachin@gmail.com>
  * Copyright (C) 2019 V. Saicharan <vsaicharan1998@gmail.com>
  * Copyright (C) 2019 Mohit Bhasi <mohitbhasi1998@gmail.com>
  * Copyright (C) 2019 Leslie Monis <lesliemonis@gmail.com>
  * Copyright (C) 2019 Gautam Ramakrishnan <gautamramk@gmail.com>
  */

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

 static void explain(void)
 {
 	fprintf(stderr,
 		"Usage: ... fq_pie [ limit PACKETS ] [ flows NUMBER ]\n"
 		"                  [ target TIME ] [ tupdate TIME ]\n"
 		"                  [ alpha NUMBER ] [ beta NUMBER ]\n"
 		"                  [ quantum BYTES ] [ memory_limit BYTES ]\n"
 		"                  [ ecn_prob PERCENTAGE ] [ [no]ecn ]\n"
 		"                  [ [no]bytemode ] [ [no_]dq_rate_estimator ]\n");
 }

 #define ALPHA_MAX 32
 #define BETA_MAX 32

 static int fq_pie_parse_opt(struct qdisc_util *qu, int argc, char **argv,
 			    struct nlmsghdr *n, const char *dev)
 {
 	unsigned int limit = 0;
 	unsigned int flows = 0;
 	unsigned int target = 0;
 	unsigned int tupdate = 0;
 	unsigned int alpha = 0;
 	unsigned int beta = 0;
 	unsigned int quantum = 0;
 	unsigned int memory_limit = 0;
 	unsigned int ecn_prob = 0;
 	int ecn = -1;
 	int bytemode = -1;
 	int dq_rate_estimator = -1;
 	struct rtattr *tail;

 	while (argc > 0) {
 		if (strcmp(*argv, "limit") == 0) {
 			NEXT_ARG();
 			if (get_unsigned(&limit, *argv, 0)) {
 				fprintf(stderr, "Illegal \"limit\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "flows") == 0) {
 			NEXT_ARG();
 			if (get_unsigned(&flows, *argv, 0)) {
 				fprintf(stderr, "Illegal \"flows\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "target") == 0) {
 			NEXT_ARG();
 			if (get_time(&target, *argv)) {
 				fprintf(stderr, "Illegal \"target\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "tupdate") == 0) {
 			NEXT_ARG();
 			if (get_time(&tupdate, *argv)) {
 				fprintf(stderr, "Illegal \"tupdate\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "alpha") == 0) {
 			NEXT_ARG();
 			if (get_unsigned(&alpha, *argv, 0) ||
 			    alpha > ALPHA_MAX) {
 				fprintf(stderr, "Illegal \"alpha\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "beta") == 0) {
 			NEXT_ARG();
 			if (get_unsigned(&beta, *argv, 0) ||
 			    beta > BETA_MAX) {
 				fprintf(stderr, "Illegal \"beta\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "quantum") == 0) {
 			NEXT_ARG();
 			if (get_size(&quantum, *argv)) {
 				fprintf(stderr, "Illegal \"quantum\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "memory_limit") == 0) {
 			NEXT_ARG();
 			if (get_size(&memory_limit, *argv)) {
 				fprintf(stderr, "Illegal \"memory_limit\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "ecn_prob") == 0) {
 			NEXT_ARG();
 			if (get_unsigned(&ecn_prob, *argv, 0) ||
 			    ecn_prob >= 100) {
 				fprintf(stderr, "Illegal \"ecn_prob\"\n");
 				return -1;
 			}
 		} else if (strcmp(*argv, "ecn") == 0) {
 			ecn = 1;
 		} else if (strcmp(*argv, "noecn") == 0) {
 			ecn = 0;
 		} else if (strcmp(*argv, "bytemode") == 0) {
 			bytemode = 1;
 		} else if (strcmp(*argv, "nobytemode") == 0) {
 			bytemode = 0;
 		} else if (strcmp(*argv, "dq_rate_estimator") == 0) {
 			dq_rate_estimator = 1;
 		} else if (strcmp(*argv, "no_dq_rate_estimator") == 0) {
 			dq_rate_estimator = 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 | NLA_F_NESTED);
 	if (limit)
 		addattr_l(n, 1024, TCA_FQ_PIE_LIMIT, &limit, sizeof(limit));
 	if (flows)
 		addattr_l(n, 1024, TCA_FQ_PIE_FLOWS, &flows, sizeof(flows));
 	if (target)
 		addattr_l(n, 1024, TCA_FQ_PIE_TARGET, &target, sizeof(target));
 	if (tupdate)
 		addattr_l(n, 1024, TCA_FQ_PIE_TUPDATE, &tupdate,
 			  sizeof(tupdate));
 	if (alpha)
 		addattr_l(n, 1024, TCA_FQ_PIE_ALPHA, &alpha, sizeof(alpha));
 	if (beta)
 		addattr_l(n, 1024, TCA_FQ_PIE_BETA, &beta, sizeof(beta));
 	if (quantum)
 		addattr_l(n, 1024, TCA_FQ_PIE_QUANTUM, &quantum,
 			  sizeof(quantum));
 	if (memory_limit)
 		addattr_l(n, 1024, TCA_FQ_PIE_MEMORY_LIMIT, &memory_limit,
 			  sizeof(memory_limit));
 	if (ecn_prob)
 		addattr_l(n, 1024, TCA_FQ_PIE_ECN_PROB, &ecn_prob,
 			  sizeof(ecn_prob));
 	if (ecn != -1)
 		addattr_l(n, 1024, TCA_FQ_PIE_ECN, &ecn, sizeof(ecn));
 	if (bytemode != -1)
 		addattr_l(n, 1024, TCA_FQ_PIE_BYTEMODE, &bytemode,
 			  sizeof(bytemode));
 	if (dq_rate_estimator != -1)
 		addattr_l(n, 1024, TCA_FQ_PIE_DQ_RATE_ESTIMATOR,
 			  &dq_rate_estimator, sizeof(dq_rate_estimator));
 	addattr_nest_end(n, tail);

 	return 0;
 }

 static int fq_pie_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 {
 	struct rtattr *tb[TCA_FQ_PIE_MAX + 1];
 	unsigned int limit = 0;
 	unsigned int flows = 0;
 	unsigned int target = 0;
 	unsigned int tupdate = 0;
 	unsigned int alpha = 0;
 	unsigned int beta = 0;
 	unsigned int quantum = 0;
 	unsigned int memory_limit = 0;
 	unsigned int ecn_prob = 0;
 	int ecn = -1;
 	int bytemode = -1;
 	int dq_rate_estimator = -1;

 	SPRINT_BUF(b1);

 	if (opt == NULL)
 		return 0;

 	parse_rtattr_nested(tb, TCA_FQ_PIE_MAX, opt);

 	if (tb[TCA_FQ_PIE_LIMIT] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_LIMIT]) >= sizeof(__u32)) {
 		limit = rta_getattr_u32(tb[TCA_FQ_PIE_LIMIT]);
 		print_uint(PRINT_ANY, "limit", "limit %up ", limit);
 	}
 	if (tb[TCA_FQ_PIE_FLOWS] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_FLOWS]) >= sizeof(__u32)) {
 		flows = rta_getattr_u32(tb[TCA_FQ_PIE_FLOWS]);
 		print_uint(PRINT_ANY, "flows", "flows %u ", flows);
 	}
 	if (tb[TCA_FQ_PIE_TARGET] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_TARGET]) >= sizeof(__u32)) {
 		target = rta_getattr_u32(tb[TCA_FQ_PIE_TARGET]);
 		print_uint(PRINT_JSON, "target", NULL, target);
 		print_string(PRINT_FP, NULL, "target %s ",
 			     sprint_time(target, b1));
 	}
 	if (tb[TCA_FQ_PIE_TUPDATE] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_TUPDATE]) >= sizeof(__u32)) {
 		tupdate = rta_getattr_u32(tb[TCA_FQ_PIE_TUPDATE]);
 		print_uint(PRINT_JSON, "tupdate", NULL, tupdate);
 		print_string(PRINT_FP, NULL, "tupdate %s ",
 			     sprint_time(tupdate, b1));
 	}
 	if (tb[TCA_FQ_PIE_ALPHA] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_ALPHA]) >= sizeof(__u32)) {
 		alpha = rta_getattr_u32(tb[TCA_FQ_PIE_ALPHA]);
 		print_uint(PRINT_ANY, "alpha", "alpha %u ", alpha);
 	}
 	if (tb[TCA_FQ_PIE_BETA] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_BETA]) >= sizeof(__u32)) {
 		beta = rta_getattr_u32(tb[TCA_FQ_PIE_BETA]);
 		print_uint(PRINT_ANY, "beta", "beta %u ", beta);
 	}
 	if (tb[TCA_FQ_PIE_QUANTUM] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_QUANTUM]) >= sizeof(__u32)) {
 		quantum = rta_getattr_u32(tb[TCA_FQ_PIE_QUANTUM]);
 		print_uint(PRINT_JSON, "quantum", NULL, quantum);
 		print_string(PRINT_FP, NULL, "quantum %s ",
 			     sprint_size(quantum, b1));
 	}
 	if (tb[TCA_FQ_PIE_MEMORY_LIMIT] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_MEMORY_LIMIT]) >= sizeof(__u32)) {
 		memory_limit = rta_getattr_u32(tb[TCA_FQ_PIE_MEMORY_LIMIT]);
 		print_uint(PRINT_JSON, "memory_limit", NULL, memory_limit);
 		print_string(PRINT_FP, NULL, "memory_limit %s ",
 			     sprint_size(memory_limit, b1));
 	}
 	if (tb[TCA_FQ_PIE_ECN_PROB] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN_PROB]) >= sizeof(__u32)) {
 		ecn_prob = rta_getattr_u32(tb[TCA_FQ_PIE_ECN_PROB]);
 		print_uint(PRINT_ANY, "ecn_prob", "ecn_prob %u ", ecn_prob);
 	}
 	if (tb[TCA_FQ_PIE_ECN] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN]) >= sizeof(__u32)) {
 		ecn = rta_getattr_u32(tb[TCA_FQ_PIE_ECN]);
 		if (ecn)
 			print_bool(PRINT_ANY, "ecn", "ecn ", true);
 	}
 	if (tb[TCA_FQ_PIE_BYTEMODE] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_BYTEMODE]) >= sizeof(__u32)) {
 		bytemode = rta_getattr_u32(tb[TCA_FQ_PIE_BYTEMODE]);
 		if (bytemode)
 			print_bool(PRINT_ANY, "bytemode", "bytemode ", true);
 	}
 	if (tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR] &&
 	    RTA_PAYLOAD(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]) >= sizeof(__u32)) {
 		dq_rate_estimator =
 			rta_getattr_u32(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]);
 		if (dq_rate_estimator)
 			print_bool(PRINT_ANY, "dq_rate_estimator",
 				   "dq_rate_estimator ", true);
 	}

 	return 0;
 }

 static int fq_pie_print_xstats(struct qdisc_util *qu, FILE *f,
 			       struct rtattr *xstats)
 {
 	struct tc_fq_pie_xstats _st = {}, *st;

 	if (xstats == NULL)
 		return 0;

 	st = RTA_DATA(xstats);
 	if (RTA_PAYLOAD(xstats) < sizeof(*st)) {
 		memcpy(&_st, st, RTA_PAYLOAD(xstats));
 		st = &_st;
 	}

 	print_uint(PRINT_ANY, "pkts_in", "  pkts_in %u",
 		   st->packets_in);
 	print_uint(PRINT_ANY, "overlimit", " overlimit %u",
 		   st->overlimit);
 	print_uint(PRINT_ANY, "overmemory", " overmemory %u",
 		   st->overmemory);
 	print_uint(PRINT_ANY, "dropped", " dropped %u",
 		   st->dropped);
 	print_uint(PRINT_ANY, "ecn_mark", " ecn_mark %u",
 		   st->ecn_mark);
 	print_nl();
 	print_uint(PRINT_ANY, "new_flow_count", "  new_flow_count %u",
 		   st->new_flow_count);
 	print_uint(PRINT_ANY, "new_flows_len", " new_flows_len %u",
 		   st->new_flows_len);
 	print_uint(PRINT_ANY, "old_flows_len", " old_flows_len %u",
 		   st->old_flows_len);
 	print_uint(PRINT_ANY, "memory_used", " memory_used %u",
 		   st->memory_usage);

 	return 0;

 }

 struct qdisc_util fq_pie_qdisc_util = {
 	.id		= "fq_pie",
 	.parse_qopt	= fq_pie_parse_opt,
 	.print_qopt	= fq_pie_print_opt,
 	.print_xstats	= fq_pie_print_xstats,
 };
	// SPDX-License-Identifier: GPL-2.0-only
	/*
	* Flow Queue PIE
	*
	* Copyright (C) 2019 Mohit P. Tahiliani <tahiliani@nitk.edu.in>
	* Copyright (C) 2019 Sachin D. Patil <sdp.sachin@gmail.com>
	* Copyright (C) 2019 V. Saicharan <vsaicharan1998@gmail.com>
	* Copyright (C) 2019 Mohit Bhasi <mohitbhasi1998@gmail.com>
	* Copyright (C) 2019 Leslie Monis <lesliemonis@gmail.com>
	* Copyright (C) 2019 Gautam Ramakrishnan <gautamramk@gmail.com>
	*/

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

	static void explain(void)
	{
	fprintf(stderr,
	"Usage: ... fq_pie [ limit PACKETS ] [ flows NUMBER ]\n"
	" [ target TIME ] [ tupdate TIME ]\n"
	" [ alpha NUMBER ] [ beta NUMBER ]\n"
	" [ quantum BYTES ] [ memory_limit BYTES ]\n"
	" [ ecn_prob PERCENTAGE ] [ [no]ecn ]\n"
	" [ [no]bytemode ] [ [no_]dq_rate_estimator ]\n");
	}

	#define ALPHA_MAX 32
	#define BETA_MAX 32

	static int fq_pie_parse_opt(struct qdisc_util qu, int argc, char *argv,
	struct nlmsghdr n, const char dev)
	{
	unsigned int limit = 0;
	unsigned int flows = 0;
	unsigned int target = 0;
	unsigned int tupdate = 0;
	unsigned int alpha = 0;
	unsigned int beta = 0;
	unsigned int quantum = 0;
	unsigned int memory_limit = 0;
	unsigned int ecn_prob = 0;
	int ecn = -1;
	int bytemode = -1;
	int dq_rate_estimator = -1;
	struct rtattr *tail;

	while (argc > 0) {
	if (strcmp(*argv, "limit") == 0) {
	NEXT_ARG();
	if (get_unsigned(&limit, *argv, 0)) {
	fprintf(stderr, "Illegal \"limit\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "flows") == 0) {
	NEXT_ARG();
	if (get_unsigned(&flows, *argv, 0)) {
	fprintf(stderr, "Illegal \"flows\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "target") == 0) {
	NEXT_ARG();
	if (get_time(&target, *argv)) {
	fprintf(stderr, "Illegal \"target\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "tupdate") == 0) {
	NEXT_ARG();
	if (get_time(&tupdate, *argv)) {
	fprintf(stderr, "Illegal \"tupdate\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "alpha") == 0) {
	NEXT_ARG();
	if (get_unsigned(&alpha, *argv, 0) \|\|
	alpha > ALPHA_MAX) {
	fprintf(stderr, "Illegal \"alpha\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "beta") == 0) {
	NEXT_ARG();
	if (get_unsigned(&beta, *argv, 0) \|\|
	beta > BETA_MAX) {
	fprintf(stderr, "Illegal \"beta\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "quantum") == 0) {
	NEXT_ARG();
	if (get_size(&quantum, *argv)) {
	fprintf(stderr, "Illegal \"quantum\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "memory_limit") == 0) {
	NEXT_ARG();
	if (get_size(&memory_limit, *argv)) {
	fprintf(stderr, "Illegal \"memory_limit\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "ecn_prob") == 0) {
	NEXT_ARG();
	if (get_unsigned(&ecn_prob, *argv, 0) \|\|
	ecn_prob >= 100) {
	fprintf(stderr, "Illegal \"ecn_prob\"\n");
	return -1;
	}
	} else if (strcmp(*argv, "ecn") == 0) {
	ecn = 1;
	} else if (strcmp(*argv, "noecn") == 0) {
	ecn = 0;
	} else if (strcmp(*argv, "bytemode") == 0) {
	bytemode = 1;
	} else if (strcmp(*argv, "nobytemode") == 0) {
	bytemode = 0;
	} else if (strcmp(*argv, "dq_rate_estimator") == 0) {
	dq_rate_estimator = 1;
	} else if (strcmp(*argv, "no_dq_rate_estimator") == 0) {
	dq_rate_estimator = 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 \| NLA_F_NESTED);
	if (limit)
	addattr_l(n, 1024, TCA_FQ_PIE_LIMIT, &limit, sizeof(limit));
	if (flows)
	addattr_l(n, 1024, TCA_FQ_PIE_FLOWS, &flows, sizeof(flows));
	if (target)
	addattr_l(n, 1024, TCA_FQ_PIE_TARGET, &target, sizeof(target));
	if (tupdate)
	addattr_l(n, 1024, TCA_FQ_PIE_TUPDATE, &tupdate,
	sizeof(tupdate));
	if (alpha)
	addattr_l(n, 1024, TCA_FQ_PIE_ALPHA, &alpha, sizeof(alpha));
	if (beta)
	addattr_l(n, 1024, TCA_FQ_PIE_BETA, &beta, sizeof(beta));
	if (quantum)
	addattr_l(n, 1024, TCA_FQ_PIE_QUANTUM, &quantum,
	sizeof(quantum));
	if (memory_limit)
	addattr_l(n, 1024, TCA_FQ_PIE_MEMORY_LIMIT, &memory_limit,
	sizeof(memory_limit));
	if (ecn_prob)
	addattr_l(n, 1024, TCA_FQ_PIE_ECN_PROB, &ecn_prob,
	sizeof(ecn_prob));
	if (ecn != -1)
	addattr_l(n, 1024, TCA_FQ_PIE_ECN, &ecn, sizeof(ecn));
	if (bytemode != -1)
	addattr_l(n, 1024, TCA_FQ_PIE_BYTEMODE, &bytemode,
	sizeof(bytemode));
	if (dq_rate_estimator != -1)
	addattr_l(n, 1024, TCA_FQ_PIE_DQ_RATE_ESTIMATOR,
	&dq_rate_estimator, sizeof(dq_rate_estimator));
	addattr_nest_end(n, tail);

	return 0;
	}

	static int fq_pie_print_opt(struct qdisc_util qu, FILE f, struct rtattr *opt)
	{
	struct rtattr *tb[TCA_FQ_PIE_MAX + 1];
	unsigned int limit = 0;
	unsigned int flows = 0;
	unsigned int target = 0;
	unsigned int tupdate = 0;
	unsigned int alpha = 0;
	unsigned int beta = 0;
	unsigned int quantum = 0;
	unsigned int memory_limit = 0;
	unsigned int ecn_prob = 0;
	int ecn = -1;
	int bytemode = -1;
	int dq_rate_estimator = -1;

	SPRINT_BUF(b1);

	if (opt == NULL)
	return 0;

	parse_rtattr_nested(tb, TCA_FQ_PIE_MAX, opt);

	if (tb[TCA_FQ_PIE_LIMIT] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_LIMIT]) >= sizeof(__u32)) {
	limit = rta_getattr_u32(tb[TCA_FQ_PIE_LIMIT]);
	print_uint(PRINT_ANY, "limit", "limit %up ", limit);
	}
	if (tb[TCA_FQ_PIE_FLOWS] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_FLOWS]) >= sizeof(__u32)) {
	flows = rta_getattr_u32(tb[TCA_FQ_PIE_FLOWS]);
	print_uint(PRINT_ANY, "flows", "flows %u ", flows);
	}
	if (tb[TCA_FQ_PIE_TARGET] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_TARGET]) >= sizeof(__u32)) {
	target = rta_getattr_u32(tb[TCA_FQ_PIE_TARGET]);
	print_uint(PRINT_JSON, "target", NULL, target);
	print_string(PRINT_FP, NULL, "target %s ",
	sprint_time(target, b1));
	}
	if (tb[TCA_FQ_PIE_TUPDATE] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_TUPDATE]) >= sizeof(__u32)) {
	tupdate = rta_getattr_u32(tb[TCA_FQ_PIE_TUPDATE]);
	print_uint(PRINT_JSON, "tupdate", NULL, tupdate);
	print_string(PRINT_FP, NULL, "tupdate %s ",
	sprint_time(tupdate, b1));
	}
	if (tb[TCA_FQ_PIE_ALPHA] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_ALPHA]) >= sizeof(__u32)) {
	alpha = rta_getattr_u32(tb[TCA_FQ_PIE_ALPHA]);
	print_uint(PRINT_ANY, "alpha", "alpha %u ", alpha);
	}
	if (tb[TCA_FQ_PIE_BETA] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_BETA]) >= sizeof(__u32)) {
	beta = rta_getattr_u32(tb[TCA_FQ_PIE_BETA]);
	print_uint(PRINT_ANY, "beta", "beta %u ", beta);
	}
	if (tb[TCA_FQ_PIE_QUANTUM] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_QUANTUM]) >= sizeof(__u32)) {
	quantum = rta_getattr_u32(tb[TCA_FQ_PIE_QUANTUM]);
	print_uint(PRINT_JSON, "quantum", NULL, quantum);
	print_string(PRINT_FP, NULL, "quantum %s ",
	sprint_size(quantum, b1));
	}
	if (tb[TCA_FQ_PIE_MEMORY_LIMIT] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_MEMORY_LIMIT]) >= sizeof(__u32)) {
	memory_limit = rta_getattr_u32(tb[TCA_FQ_PIE_MEMORY_LIMIT]);
	print_uint(PRINT_JSON, "memory_limit", NULL, memory_limit);
	print_string(PRINT_FP, NULL, "memory_limit %s ",
	sprint_size(memory_limit, b1));
	}
	if (tb[TCA_FQ_PIE_ECN_PROB] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN_PROB]) >= sizeof(__u32)) {
	ecn_prob = rta_getattr_u32(tb[TCA_FQ_PIE_ECN_PROB]);
	print_uint(PRINT_ANY, "ecn_prob", "ecn_prob %u ", ecn_prob);
	}
	if (tb[TCA_FQ_PIE_ECN] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN]) >= sizeof(__u32)) {
	ecn = rta_getattr_u32(tb[TCA_FQ_PIE_ECN]);
	if (ecn)
	print_bool(PRINT_ANY, "ecn", "ecn ", true);
	}
	if (tb[TCA_FQ_PIE_BYTEMODE] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_BYTEMODE]) >= sizeof(__u32)) {
	bytemode = rta_getattr_u32(tb[TCA_FQ_PIE_BYTEMODE]);
	if (bytemode)
	print_bool(PRINT_ANY, "bytemode", "bytemode ", true);
	}
	if (tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR] &&
	RTA_PAYLOAD(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]) >= sizeof(__u32)) {
	dq_rate_estimator =
	rta_getattr_u32(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]);
	if (dq_rate_estimator)
	print_bool(PRINT_ANY, "dq_rate_estimator",
	"dq_rate_estimator ", true);
	}

	return 0;
	}

	static int fq_pie_print_xstats(struct qdisc_util qu, FILE f,
	struct rtattr *xstats)
	{
	struct tc_fq_pie_xstats _st = {}, *st;

	if (xstats == NULL)
	return 0;

	st = RTA_DATA(xstats);
	if (RTA_PAYLOAD(xstats) < sizeof(*st)) {
	memcpy(&_st, st, RTA_PAYLOAD(xstats));
	st = &_st;
	}

	print_uint(PRINT_ANY, "pkts_in", " pkts_in %u",
	st->packets_in);
	print_uint(PRINT_ANY, "overlimit", " overlimit %u",
	st->overlimit);
	print_uint(PRINT_ANY, "overmemory", " overmemory %u",
	st->overmemory);
	print_uint(PRINT_ANY, "dropped", " dropped %u",
	st->dropped);
	print_uint(PRINT_ANY, "ecn_mark", " ecn_mark %u",
	st->ecn_mark);
	print_nl();
	print_uint(PRINT_ANY, "new_flow_count", " new_flow_count %u",
	st->new_flow_count);
	print_uint(PRINT_ANY, "new_flows_len", " new_flows_len %u",
	st->new_flows_len);
	print_uint(PRINT_ANY, "old_flows_len", " old_flows_len %u",
	st->old_flows_len);
	print_uint(PRINT_ANY, "memory_used", " memory_used %u",
	st->memory_usage);

	return 0;

	}

	struct qdisc_util fq_pie_qdisc_util = {
	.id = "fq_pie",
	.parse_qopt = fq_pie_parse_opt,
	.print_qopt = fq_pie_print_opt,
	.print_xstats = fq_pie_print_xstats,
	};