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
explain(void)39 static void explain(void)
40 {
41 fprintf(stderr, "Usage: ... multiq [help]\n");
42 }
43
multiq_parse_opt(struct qdisc_util * qu,int argc,char ** argv,struct nlmsghdr * n)44 static 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 > 0) {
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 argc--; argv++;
59 }
60
61 addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
62 return 0;
63 }
64
multiq_print_opt(struct qdisc_util * qu,FILE * f,struct rtattr * opt)65 int multiq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
66 {
67 struct tc_multiq_qopt *qopt;
68
69 if (opt == NULL)
70 return 0;
71 if (RTA_PAYLOAD(opt) < sizeof(*qopt))
72 return 0;
73
74 qopt = RTA_DATA(opt);
75
76 fprintf(f, "bands %u/%u ", qopt->bands, qopt->max_bands);
77
78 return 0;
79 }
80
81 struct qdisc_util multiq_qdisc_util = {
82 .id = "multiq",
83 .parse_qopt = multiq_parse_opt,
84 .print_qopt = multiq_print_opt,
85 };
86