1/*
2 * q_multiq.c		Multiqueue aware qdisc
3 *
4 * Copyright (c) 2008, Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
17 * Place - Suite 330, Boston, MA 02111-1307 USA.
18 *
19 * Author: Alexander Duyck <alexander.h.duyck@intel.com>
20 *
21 * Original Authors:	PJ Waskiewicz, <peter.p.waskiewicz.jr@intel.com> (RR)
22 * 			Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> (from PRIO)
23 *
24 */
25
26#include <stdio.h>
27#include <stdlib.h>
28#include <unistd.h>
29#include <syslog.h>
30#include <fcntl.h>
31#include <sys/socket.h>
32#include <netinet/in.h>
33#include <arpa/inet.h>
34#include <string.h>
35
36#include "utils.h"
37#include "tc_util.h"
38
39static void explain(void)
40{
41	fprintf(stderr, "Usage: ... multiq [help]\n");
42}
43
44static int multiq_parse_opt(struct qdisc_util *qu, int argc, char **argv,
45			    struct nlmsghdr *n)
46{
47	struct tc_multiq_qopt opt;
48
49	if (argc) {
50		if (strcmp(*argv, "help") == 0) {
51			explain();
52			return -1;
53		} else {
54			fprintf(stderr, "What is \"%s\"?\n", *argv);
55			explain();
56			return -1;
57		}
58	}
59
60	addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
61	return 0;
62}
63
64int multiq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
65{
66	struct tc_multiq_qopt *qopt;
67
68	if (opt == NULL)
69		return 0;
70	if (RTA_PAYLOAD(opt) < sizeof(*qopt))
71		return 0;
72
73	qopt = RTA_DATA(opt);
74
75	fprintf(f, "bands %u/%u ", qopt->bands, qopt->max_bands);
76
77	return 0;
78}
79
80struct qdisc_util multiq_qdisc_util = {
81	.id	 	= "multiq",
82	.parse_qopt	= multiq_parse_opt,
83	.print_qopt	= multiq_print_opt,
84};
85