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
16 * along with this program; if not, see <http://www.gnu.org/licenses>.
17 *
18 * Author: Alexander Duyck <alexander.h.duyck@intel.com>
19 *
20 * Original Authors:	PJ Waskiewicz, <peter.p.waskiewicz.jr@intel.com> (RR)
21 *			Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> (from PRIO)
22 *
23 */
24
25#include <stdio.h>
26#include <stdlib.h>
27#include <unistd.h>
28#include <syslog.h>
29#include <fcntl.h>
30#include <sys/socket.h>
31#include <netinet/in.h>
32#include <arpa/inet.h>
33#include <string.h>
34
35#include "utils.h"
36#include "tc_util.h"
37
38static void explain(void)
39{
40	fprintf(stderr, "Usage: ... multiq [help]\n");
41}
42
43static int multiq_parse_opt(struct qdisc_util *qu, int argc, char **argv,
44			    struct nlmsghdr *n)
45{
46	struct tc_multiq_qopt opt;
47
48	if (argc) {
49		if (strcmp(*argv, "help") == 0) {
50			explain();
51			return -1;
52		} else {
53			fprintf(stderr, "What is \"%s\"?\n", *argv);
54			explain();
55			return -1;
56		}
57	}
58
59	addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
60	return 0;
61}
62
63static int multiq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
64{
65	struct tc_multiq_qopt *qopt;
66
67	if (opt == NULL)
68		return 0;
69	if (RTA_PAYLOAD(opt) < sizeof(*qopt))
70		return 0;
71
72	qopt = RTA_DATA(opt);
73
74	fprintf(f, "bands %u/%u ", qopt->bands, qopt->max_bands);
75
76	return 0;
77}
78
79struct qdisc_util multiq_qdisc_util = {
80	.id	 	= "multiq",
81	.parse_qopt	= multiq_parse_opt,
82	.print_qopt	= multiq_print_opt,
83};
84