osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * q_gred.c GRED. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 9 | * Authors: J Hadi Salim(hadi@nortelnetworks.com) |
| 10 | * code ruthlessly ripped from |
| 11 | * Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 12 | * |
| 13 | */ |
| 14 | |
| 15 | #include <stdio.h> |
| 16 | #include <stdlib.h> |
| 17 | #include <unistd.h> |
| 18 | #include <syslog.h> |
| 19 | #include <fcntl.h> |
| 20 | #include <sys/socket.h> |
| 21 | #include <netinet/in.h> |
| 22 | #include <arpa/inet.h> |
| 23 | #include <string.h> |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 24 | #include <math.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 25 | |
| 26 | #include "utils.h" |
| 27 | #include "tc_util.h" |
| 28 | |
| 29 | #include "tc_red.h" |
| 30 | |
| 31 | |
| 32 | #if 0 |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 33 | #define DPRINTF(format, args...) fprintf(stderr, format, ##args) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 34 | #else |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 35 | #define DPRINTF(format, args...) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 36 | #endif |
| 37 | |
| 38 | static void explain(void) |
| 39 | { |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 40 | fprintf(stderr, "Usage: tc qdisc { add | replace | change } ... gred setup vqs NUMBER\n"); |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 41 | fprintf(stderr, " default DEFAULT_VQ [ grio ] [ limit BYTES ]\n"); |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 42 | fprintf(stderr, " tc qdisc change ... gred vq VQ [ prio VALUE ] limit BYTES\n"); |
| 43 | fprintf(stderr, " min BYTES max BYTES avpkt BYTES [ burst PACKETS ]\n"); |
| 44 | fprintf(stderr, " [ probability PROBABILITY ] [ bandwidth KBPS ]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 45 | } |
| 46 | |
Stephen Hemminger | 3d0b743 | 2014-12-20 15:47:17 -0800 | [diff] [blame] | 47 | static int init_gred(struct qdisc_util *qu, int argc, char **argv, |
Stephen Hemminger | ebde878 | 2009-05-26 15:15:01 -0700 | [diff] [blame] | 48 | struct nlmsghdr *n) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 49 | { |
| 50 | |
| 51 | struct rtattr *tail; |
Stephen Hemminger | cb4bd0e | 2010-08-25 09:04:55 -0700 | [diff] [blame] | 52 | struct tc_gred_sopt opt = { 0 }; |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 53 | __u32 limit = 0; |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 54 | |
| 55 | opt.def_DP = MAX_DPs; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 56 | |
| 57 | while (argc > 0) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 58 | DPRINTF(stderr, "init_gred: invoked with %s\n", *argv); |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 59 | if (strcmp(*argv, "vqs") == 0 || |
| 60 | strcmp(*argv, "DPs") == 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 61 | NEXT_ARG(); |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 62 | if (get_unsigned(&opt.DPs, *argv, 10)) { |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 63 | fprintf(stderr, "Illegal \"vqs\"\n"); |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 64 | return -1; |
| 65 | } else if (opt.DPs > MAX_DPs) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 66 | fprintf(stderr, "GRED: only %u VQs are currently supported\n", |
| 67 | MAX_DPs); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 68 | return -1; |
| 69 | } |
| 70 | } else if (strcmp(*argv, "default") == 0) { |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 71 | if (opt.DPs == 0) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 72 | fprintf(stderr, "\"default\" must be defined after \"vqs\"\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 73 | return -1; |
| 74 | } |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 75 | NEXT_ARG(); |
| 76 | if (get_unsigned(&opt.def_DP, *argv, 10)) { |
| 77 | fprintf(stderr, "Illegal \"default\"\n"); |
| 78 | return -1; |
| 79 | } else if (opt.def_DP >= opt.DPs) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 80 | fprintf(stderr, "\"default\" must be less than \"vqs\"\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 81 | return -1; |
| 82 | } |
| 83 | } else if (strcmp(*argv, "grio") == 0) { |
Stephen Hemminger | cb4bd0e | 2010-08-25 09:04:55 -0700 | [diff] [blame] | 84 | opt.grio = 1; |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 85 | } else if (strcmp(*argv, "limit") == 0) { |
| 86 | NEXT_ARG(); |
| 87 | if (get_size(&limit, *argv)) { |
| 88 | fprintf(stderr, "Illegal \"limit\"\n"); |
| 89 | return -1; |
| 90 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 91 | } else if (strcmp(*argv, "help") == 0) { |
| 92 | explain(); |
| 93 | return -1; |
| 94 | } else { |
| 95 | fprintf(stderr, "What is \"%s\"?\n", *argv); |
| 96 | explain(); |
| 97 | return -1; |
| 98 | } |
| 99 | argc--; argv++; |
Stephen Hemminger | ebde878 | 2009-05-26 15:15:01 -0700 | [diff] [blame] | 100 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 101 | |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 102 | if (!opt.DPs || opt.def_DP == MAX_DPs) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 103 | fprintf(stderr, "Illegal gred setup parameters\n"); |
Stephen Hemminger | ebde878 | 2009-05-26 15:15:01 -0700 | [diff] [blame] | 104 | return -1; |
| 105 | } |
| 106 | |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 107 | DPRINTF("TC_GRED: sending DPs=%u def_DP=%u\n", opt.DPs, opt.def_DP); |
| 108 | n->nlmsg_flags |= NLM_F_CREATE; |
4!tgraf | 228569c | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 109 | tail = NLMSG_TAIL(n); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 110 | addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); |
| 111 | addattr_l(n, 1024, TCA_GRED_DPS, &opt, sizeof(struct tc_gred_sopt)); |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 112 | if (limit) |
| 113 | addattr32(n, 1024, TCA_GRED_LIMIT, limit); |
4!tgraf | 228569c | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 114 | tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; |
Stephen Hemminger | ebde878 | 2009-05-26 15:15:01 -0700 | [diff] [blame] | 115 | return 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 116 | } |
| 117 | /* |
| 118 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 119 | */ |
| 120 | static int gred_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) |
| 121 | { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 122 | int ok = 0; |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 123 | struct tc_gred_qopt opt = { 0 }; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 124 | unsigned int burst = 0; |
| 125 | unsigned int avpkt = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 126 | double probability = 0.02; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 127 | unsigned int rate = 0; |
David Ward | 9d9a67c | 2015-05-18 11:35:05 -0400 | [diff] [blame] | 128 | int parm; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 129 | __u8 sbuf[256]; |
| 130 | struct rtattr *tail; |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 131 | __u32 max_P; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 132 | |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 133 | opt.DP = MAX_DPs; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 134 | |
| 135 | while (argc > 0) { |
| 136 | if (strcmp(*argv, "limit") == 0) { |
| 137 | NEXT_ARG(); |
| 138 | if (get_size(&opt.limit, *argv)) { |
| 139 | fprintf(stderr, "Illegal \"limit\"\n"); |
| 140 | return -1; |
| 141 | } |
| 142 | ok++; |
| 143 | } else if (strcmp(*argv, "setup") == 0) { |
| 144 | if (ok) { |
| 145 | fprintf(stderr, "Illegal \"setup\"\n"); |
| 146 | return -1; |
| 147 | } |
David Ward | d73e040 | 2015-05-18 11:35:09 -0400 | [diff] [blame] | 148 | return init_gred(qu, argc-1, argv+1, n); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 149 | } else if (strcmp(*argv, "min") == 0) { |
| 150 | NEXT_ARG(); |
| 151 | if (get_size(&opt.qth_min, *argv)) { |
| 152 | fprintf(stderr, "Illegal \"min\"\n"); |
| 153 | return -1; |
| 154 | } |
| 155 | ok++; |
| 156 | } else if (strcmp(*argv, "max") == 0) { |
| 157 | NEXT_ARG(); |
| 158 | if (get_size(&opt.qth_max, *argv)) { |
| 159 | fprintf(stderr, "Illegal \"max\"\n"); |
| 160 | return -1; |
| 161 | } |
| 162 | ok++; |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 163 | } else if (strcmp(*argv, "vq") == 0 || |
| 164 | strcmp(*argv, "DP") == 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 165 | NEXT_ARG(); |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 166 | if (get_unsigned(&opt.DP, *argv, 10)) { |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 167 | fprintf(stderr, "Illegal \"vq\"\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 168 | return -1; |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 169 | } else if (opt.DP >= MAX_DPs) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 170 | fprintf(stderr, "GRED: only %u VQs are currently supported\n", |
| 171 | MAX_DPs); |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 172 | return -1; |
| 173 | } /* need a better error check */ |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 174 | ok++; |
| 175 | } else if (strcmp(*argv, "burst") == 0) { |
| 176 | NEXT_ARG(); |
David Ward | d73e040 | 2015-05-18 11:35:09 -0400 | [diff] [blame] | 177 | if (get_unsigned(&burst, *argv, 0)) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 178 | fprintf(stderr, "Illegal \"burst\"\n"); |
| 179 | return -1; |
| 180 | } |
| 181 | ok++; |
| 182 | } else if (strcmp(*argv, "avpkt") == 0) { |
| 183 | NEXT_ARG(); |
| 184 | if (get_size(&avpkt, *argv)) { |
| 185 | fprintf(stderr, "Illegal \"avpkt\"\n"); |
| 186 | return -1; |
| 187 | } |
| 188 | ok++; |
| 189 | } else if (strcmp(*argv, "probability") == 0) { |
| 190 | NEXT_ARG(); |
| 191 | if (sscanf(*argv, "%lg", &probability) != 1) { |
| 192 | fprintf(stderr, "Illegal \"probability\"\n"); |
| 193 | return -1; |
| 194 | } |
| 195 | ok++; |
| 196 | } else if (strcmp(*argv, "prio") == 0) { |
| 197 | NEXT_ARG(); |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 198 | opt.prio = strtol(*argv, (char **)NULL, 10); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 199 | /* some error check here */ |
| 200 | ok++; |
| 201 | } else if (strcmp(*argv, "bandwidth") == 0) { |
| 202 | NEXT_ARG(); |
| 203 | if (get_rate(&rate, *argv)) { |
| 204 | fprintf(stderr, "Illegal \"bandwidth\"\n"); |
| 205 | return -1; |
| 206 | } |
| 207 | ok++; |
| 208 | } else if (strcmp(*argv, "help") == 0) { |
| 209 | explain(); |
| 210 | return -1; |
| 211 | } else { |
| 212 | fprintf(stderr, "What is \"%s\"?\n", *argv); |
| 213 | explain(); |
| 214 | return -1; |
| 215 | } |
| 216 | argc--; argv++; |
| 217 | } |
| 218 | |
David Ward | a77905e | 2015-05-18 11:35:10 -0400 | [diff] [blame] | 219 | if (!ok) { |
| 220 | explain(); |
| 221 | return -1; |
| 222 | } |
David Ward | eb6d7d6 | 2015-05-18 11:35:12 -0400 | [diff] [blame] | 223 | if (opt.DP == MAX_DPs || !opt.limit || !opt.qth_min || !opt.qth_max || |
| 224 | !avpkt) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 225 | fprintf(stderr, "Required parameter (vq, limit, min, max, avpkt) is missing\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 226 | return -1; |
| 227 | } |
Eric Dumazet | ab15aea | 2011-12-01 15:25:59 +0100 | [diff] [blame] | 228 | if (!burst) { |
| 229 | burst = (2 * opt.qth_min + opt.qth_max) / (3 * avpkt); |
| 230 | fprintf(stderr, "GRED: set burst to %u\n", burst); |
| 231 | } |
David Ward | d93c909 | 2015-05-18 11:35:07 -0400 | [diff] [blame] | 232 | if (!rate) { |
| 233 | get_rate(&rate, "10Mbit"); |
| 234 | fprintf(stderr, "GRED: set bandwidth to 10Mbit\n"); |
| 235 | } |
David Ward | 9d9a67c | 2015-05-18 11:35:05 -0400 | [diff] [blame] | 236 | if ((parm = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 237 | fprintf(stderr, "GRED: failed to calculate EWMA constant.\n"); |
| 238 | return -1; |
| 239 | } |
David Ward | 9d9a67c | 2015-05-18 11:35:05 -0400 | [diff] [blame] | 240 | if (parm >= 10) |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 241 | fprintf(stderr, "GRED: WARNING. Burst %u seems to be too large.\n", |
| 242 | burst); |
David Ward | 9d9a67c | 2015-05-18 11:35:05 -0400 | [diff] [blame] | 243 | opt.Wlog = parm; |
| 244 | if ((parm = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 245 | fprintf(stderr, "GRED: failed to calculate probability.\n"); |
| 246 | return -1; |
| 247 | } |
David Ward | 9d9a67c | 2015-05-18 11:35:05 -0400 | [diff] [blame] | 248 | opt.Plog = parm; |
| 249 | if ((parm = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 250 | { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 251 | fprintf(stderr, "GRED: failed to calculate idle damping table.\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 252 | return -1; |
| 253 | } |
David Ward | 9d9a67c | 2015-05-18 11:35:05 -0400 | [diff] [blame] | 254 | opt.Scell_log = parm; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 255 | |
4!tgraf | 228569c | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 256 | tail = NLMSG_TAIL(n); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 257 | addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); |
| 258 | addattr_l(n, 1024, TCA_GRED_PARMS, &opt, sizeof(opt)); |
| 259 | addattr_l(n, 1024, TCA_GRED_STAB, sbuf, 256); |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 260 | max_P = probability * pow(2, 32); |
| 261 | addattr32(n, 1024, TCA_GRED_MAX_P, max_P); |
4!tgraf | 228569c | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 262 | tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | static int gred_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) |
| 267 | { |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 268 | struct rtattr *tb[TCA_GRED_MAX + 1]; |
David Ward | 1693a4d | 2015-05-18 11:35:11 -0400 | [diff] [blame] | 269 | struct tc_gred_sopt *sopt; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 270 | struct tc_gred_qopt *qopt; |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 271 | __u32 *max_p = NULL; |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 272 | __u32 *limit = NULL; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 273 | unsigned int i; |
| 274 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 275 | SPRINT_BUF(b1); |
| 276 | SPRINT_BUF(b2); |
| 277 | SPRINT_BUF(b3); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 278 | |
| 279 | if (opt == NULL) |
| 280 | return 0; |
| 281 | |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 282 | parse_rtattr_nested(tb, TCA_GRED_MAX, opt); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 283 | |
| 284 | if (tb[TCA_GRED_PARMS] == NULL) |
| 285 | return -1; |
osdl.net!shemminger | a5a6f1e | 2005-03-10 20:26:08 +0000 | [diff] [blame] | 286 | |
Eric Dumazet | 1b6f0bb | 2012-01-20 16:27:50 +0100 | [diff] [blame] | 287 | if (tb[TCA_GRED_MAX_P] && |
| 288 | RTA_PAYLOAD(tb[TCA_GRED_MAX_P]) >= sizeof(__u32) * MAX_DPs) |
| 289 | max_p = RTA_DATA(tb[TCA_GRED_MAX_P]); |
| 290 | |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 291 | if (tb[TCA_GRED_LIMIT] && |
| 292 | RTA_PAYLOAD(tb[TCA_GRED_LIMIT]) == sizeof(__u32)) |
| 293 | limit = RTA_DATA(tb[TCA_GRED_LIMIT]); |
| 294 | |
David Ward | 1693a4d | 2015-05-18 11:35:11 -0400 | [diff] [blame] | 295 | sopt = RTA_DATA(tb[TCA_GRED_DPS]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 296 | qopt = RTA_DATA(tb[TCA_GRED_PARMS]); |
David Ward | 1693a4d | 2015-05-18 11:35:11 -0400 | [diff] [blame] | 297 | if (RTA_PAYLOAD(tb[TCA_GRED_DPS]) < sizeof(*sopt) || |
| 298 | RTA_PAYLOAD(tb[TCA_GRED_PARMS]) < sizeof(*qopt)*MAX_DPs) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 299 | fprintf(f, "\n GRED received message smaller than expected\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 300 | return -1; |
David Ward | 1693a4d | 2015-05-18 11:35:11 -0400 | [diff] [blame] | 301 | } |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 302 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 303 | /* Bad hack! should really return a proper message as shown above*/ |
| 304 | |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 305 | fprintf(f, "vqs %u default %u %s", |
David Ward | 1693a4d | 2015-05-18 11:35:11 -0400 | [diff] [blame] | 306 | sopt->DPs, |
| 307 | sopt->def_DP, |
| 308 | sopt->grio ? "grio " : ""); |
| 309 | |
David Ward | aacee26 | 2015-05-18 11:35:14 -0400 | [diff] [blame] | 310 | if (limit) |
| 311 | fprintf(f, "limit %s ", |
| 312 | sprint_size(*limit, b1)); |
| 313 | |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 314 | for (i = 0; i < MAX_DPs; i++, qopt++) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 315 | if (qopt->DP >= MAX_DPs) continue; |
David Ward | 357c45a | 2015-05-18 11:35:13 -0400 | [diff] [blame] | 316 | fprintf(f, "\n vq %u prio %hhu limit %s min %s max %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 317 | qopt->DP, |
| 318 | qopt->prio, |
David Ward | 1693a4d | 2015-05-18 11:35:11 -0400 | [diff] [blame] | 319 | sprint_size(qopt->limit, b1), |
| 320 | sprint_size(qopt->qth_min, b2), |
| 321 | sprint_size(qopt->qth_max, b3)); |
| 322 | if (show_details) { |
| 323 | fprintf(f, "ewma %u ", qopt->Wlog); |
| 324 | if (max_p) |
| 325 | fprintf(f, "probability %lg ", max_p[i] / pow(2, 32)); |
| 326 | else |
| 327 | fprintf(f, "Plog %u ", qopt->Plog); |
| 328 | fprintf(f, "Scell_log %u ", qopt->Scell_log); |
| 329 | } |
| 330 | if (show_stats) { |
| 331 | fprintf(f, "\n Queue size: average %s current %s ", |
| 332 | sprint_size(qopt->qave, b1), |
| 333 | sprint_size(qopt->backlog, b2)); |
| 334 | fprintf(f, "\n Dropped packets: forced %u early %u pdrop %u other %u ", |
| 335 | qopt->forced, |
| 336 | qopt->early, |
| 337 | qopt->pdrop, |
| 338 | qopt->other); |
| 339 | fprintf(f, "\n Total packets: %u (%s) ", |
| 340 | qopt->packets, |
| 341 | sprint_size(qopt->bytesin, b1)); |
| 342 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 343 | } |
| 344 | return 0; |
| 345 | } |
| 346 | |
net[shemminger]!kaber | 95812b5 | 2004-09-28 18:35:49 +0000 | [diff] [blame] | 347 | struct qdisc_util gred_qdisc_util = { |
osdl.net!shemminger | f2f99e2 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 348 | .id = "gred", |
| 349 | .parse_qopt = gred_parse_opt, |
| 350 | .print_qopt = gred_print_opt, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 351 | }; |