package/iproute2/patches/006-iproute2-tc_esfq.patch

   1 ---
   2  include/linux/pkt_sched.h |   59 +++++++++++++
   3  tc/Makefile               |    1
   4  tc/q_esfq.c               |  200 ++++++++++++++++++++++++++++++++++++++++++++++
   5  3 files changed, 260 insertions(+)
   6
   7 --- a/include/linux/pkt_sched.h
   8 +++ b/include/linux/pkt_sched.h
   9 @@ -174,8 +174,38 @@ struct tc_sfq_qopt
  10   *
  11   *     The only reason for this is efficiency, it is possible
  12   *     to change these parameters in compile time.
  13 + *
  14 + *     If you need to play with these values use esfq instead.
  15   */
  16
  17 +/* ESFQ section */
  18 +
  19 +enum
  20 +{
  21 +       /* traditional */
  22 +       TCA_SFQ_HASH_CLASSIC,
  23 +       TCA_SFQ_HASH_DST,
  24 +       TCA_SFQ_HASH_SRC,
  25 +       /* conntrack */
  26 +       TCA_SFQ_HASH_CTORIGDST,
  27 +       TCA_SFQ_HASH_CTORIGSRC,
  28 +       TCA_SFQ_HASH_CTREPLDST,
  29 +       TCA_SFQ_HASH_CTREPLSRC,
  30 +       TCA_SFQ_HASH_CTNATCHG,
  31 +};
  32 +
  33 +struct tc_esfq_qopt
  34 +{
  35 +       unsigned        quantum;        /* Bytes per round allocated to flow */
  36 +       int             perturb_period; /* Period of hash perturbation */
  37 +       __u32           limit;          /* Maximal packets in queue */
  38 +       unsigned        divisor;        /* Hash divisor  */
  39 +       unsigned        flows;          /* Maximal number of flows  */
  40 +       unsigned        hash_kind;      /* Hash function to use for flow identification */
  41 +};
  42 +
  43 +
  44 +
  45  /* RED section */
  46
  47  enum
  48 @@ -579,8 +609,37 @@ struct tc_sfq_xstats {
  49   *
  50   *     The only reason for this is efficiency, it is possible
  51   *     to change these parameters in compile time.
  52 + *
  53 + *     If you need to play with these values use esfq instead.
  54   */
  55
  56 +/* ESFQ section */
  57 +
  58 +enum
  59 +{
  60 +       /* traditional */
  61 +       TCA_SFQ_HASH_CLASSIC,
  62 +       TCA_SFQ_HASH_DST,
  63 +       TCA_SFQ_HASH_SRC,
  64 +       /* conntrack */
  65 +       TCA_SFQ_HASH_CTORIGDST,
  66 +       TCA_SFQ_HASH_CTORIGSRC,
  67 +       TCA_SFQ_HASH_CTREPLDST,
  68 +       TCA_SFQ_HASH_CTREPLSRC,
  69 +       TCA_SFQ_HASH_CTNATCHG,
  70 +};
  71 +
  72 +struct tc_esfq_qopt
  73 +{
  74 +       unsigned        quantum;        /* Bytes per round allocated to flow */
  75 +       int             perturb_period; /* Period of hash perturbation */
  76 +       __u32           limit;          /* Maximal packets in queue */
  77 +       unsigned        divisor;        /* Hash divisor  */
  78 +       unsigned        flows;          /* Maximal number of flows  */
  79 +       unsigned        hash_kind;      /* Hash function to use for flow identification */
  80 +};
  81 +
  82 +
  83  /* RED section */
  84
  85  enum {
  86 --- a/tc/Makefile
  87 +++ b/tc/Makefile
  88 @@ -8,6 +8,7 @@ SHARED_LIBS ?= y
  89  TCMODULES :=
  90  TCMODULES += q_fifo.o
  91  TCMODULES += q_sfq.o
  92 +TCMODULES += q_esfq.o
  93  TCMODULES += q_red.o
  94  TCMODULES += q_prio.o
  95  TCMODULES += q_tbf.o
  96 --- /dev/null
  97 +++ b/tc/q_esfq.c
  98 @@ -0,0 +1,200 @@
  99 +/*
 100 + * q_esfq.c            ESFQ.
 101 + *
 102 + *             This program is free software; you can redistribute it and/or
 103 + *             modify it under the terms of the GNU General Public License
 104 + *             as published by the Free Software Foundation; either version
 105 + *             2 of the License, or (at your option) any later version.
 106 + *
 107 + * Authors:    Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 108 + *
 109 + * Changes:    Alexander Atanasov, <alex@ssi.bg>
 110 + *             Alexander Clouter, <alex@digriz.org.uk>
 111 + *             Corey Hickey, <bugfood-c@fatooh.org>
 112 + *
 113 + */
 114 +
 115 +#include <stdio.h>
 116 +#include <stdlib.h>
 117 +#include <unistd.h>
 118 +#include <syslog.h>
 119 +#include <fcntl.h>
 120 +#include <math.h>
 121 +#include <sys/socket.h>
 122 +#include <netinet/in.h>
 123 +#include <arpa/inet.h>
 124 +#include <string.h>
 125 +
 126 +#include "utils.h"
 127 +#include "tc_util.h"
 128 +
 129 +static void explain(void)
 130 +{
 131 +       fprintf(stderr, "Usage: ... esfq [ perturb SECS ] [ quantum BYTES ] [ depth FLOWS ]\n\t[ divisor HASHBITS ] [ limit PKTS ] [ hash HASHTYPE]\n");
 132 +       fprintf(stderr,"Where: \n");
 133 +       fprintf(stderr,"HASHTYPE := { classic | src | dst | ctorigdst | ctorigsrc | ctrepldst | ctreplsrc | ctnatchg }\n");
 134 +}
 135 +
 136 +#define usage() return(-1)
 137 +
 138 +static int esfq_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
 139 +{
 140 +       int ok=0;
 141 +       struct tc_esfq_qopt opt;
 142 +
 143 +       memset(&opt, 0, sizeof(opt));
 144 +
 145 +       opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
 146 +
 147 +       while (argc > 0) {
 148 +               if (strcmp(*argv, "quantum") == 0) {
 149 +                       NEXT_ARG();
 150 +                       if (get_size(&opt.quantum, *argv)) {
 151 +                               fprintf(stderr, "Illegal \"quantum\"\n");
 152 +                               return -1;
 153 +                       }
 154 +                       ok++;
 155 +               } else if (strcmp(*argv, "perturb") == 0) {
 156 +                       NEXT_ARG();
 157 +                       if (get_integer(&opt.perturb_period, *argv, 0)) {
 158 +                               fprintf(stderr, "Illegal \"perturb\"\n");
 159 +                               return -1;
 160 +                       }
 161 +                       ok++;
 162 +               } else if (strcmp(*argv, "depth") == 0) {
 163 +                       NEXT_ARG();
 164 +                       if (get_integer((int *) &opt.flows, *argv, 0)) {
 165 +                               fprintf(stderr, "Illegal \"depth\"\n");
 166 +                               return -1;
 167 +                       }
 168 +                       ok++;
 169 +               } else if (strcmp(*argv, "divisor") == 0) {
 170 +                       NEXT_ARG();
 171 +                       if (get_integer((int *) &opt.divisor, *argv, 0)) {
 172 +                               fprintf(stderr, "Illegal \"divisor\"\n");
 173 +                               return -1;
 174 +                       }
 175 +                       if(opt.divisor >= 14) {
 176 +                               fprintf(stderr, "Illegal \"divisor\": must be < 14\n");
 177 +                               return -1;
 178 +                       }
 179 +                       opt.divisor=pow(2,opt.divisor);
 180 +                       ok++;
 181 +               } else if (strcmp(*argv, "limit") == 0) {
 182 +                       NEXT_ARG();
 183 +                       if (get_integer((int *) &opt.limit, *argv, 0)) {
 184 +                               fprintf(stderr, "Illegal \"limit\"\n");
 185 +                               return -1;
 186 +                       }
 187 +                       ok++;
 188 +               } else if (strcmp(*argv, "hash") == 0) {
 189 +                       NEXT_ARG();
 190 +                       if(strcmp(*argv, "classic") == 0) {
 191 +                               opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
 192 +                       } else
 193 +                       if(strcmp(*argv, "dst") == 0) {
 194 +                               opt.hash_kind= TCA_SFQ_HASH_DST;
 195 +                       } else
 196 +                       if(strcmp(*argv, "src") == 0) {
 197 +                               opt.hash_kind= TCA_SFQ_HASH_SRC;
 198 +                       } else
 199 +                       if(strcmp(*argv, "ctorigsrc") == 0) {
 200 +                               opt.hash_kind= TCA_SFQ_HASH_CTORIGSRC;
 201 +                       } else
 202 +                       if(strcmp(*argv, "ctorigdst") == 0) {
 203 +                               opt.hash_kind= TCA_SFQ_HASH_CTORIGDST;
 204 +                       } else
 205 +                       if(strcmp(*argv, "ctreplsrc") == 0) {
 206 +                               opt.hash_kind= TCA_SFQ_HASH_CTREPLSRC;
 207 +                       } else
 208 +                       if(strcmp(*argv, "ctrepldst") == 0) {
 209 +                               opt.hash_kind= TCA_SFQ_HASH_CTREPLDST;
 210 +                       } else
 211 +                       if(strcmp(*argv, "ctnatchg") == 0) {
 212 +                               opt.hash_kind= TCA_SFQ_HASH_CTNATCHG;
 213 +                       } else {
 214 +                               fprintf(stderr, "Illegal \"hash\"\n");
 215 +                               explain();
 216 +                               return -1;
 217 +                       }
 218 +                       ok++;
 219 +               } else if (strcmp(*argv, "help") == 0) {
 220 +                       explain();
 221 +                       return -1;
 222 +               } else {
 223 +                       fprintf(stderr, "What is \"%s\"?\n", *argv);
 224 +                       explain();
 225 +                       return -1;
 226 +               }
 227 +               argc--; argv++;
 228 +       }
 229 +
 230 +       if (ok)
 231 +               addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
 232 +       return 0;
 233 +}
 234 +
 235 +static int esfq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 236 +{
 237 +       struct tc_esfq_qopt *qopt;
 238 +       SPRINT_BUF(b1);
 239 +
 240 +       if (opt == NULL)
 241 +               return 0;
 242 +
 243 +       if (RTA_PAYLOAD(opt)  < sizeof(*qopt))
 244 +               return -1;
 245 +       qopt = RTA_DATA(opt);
 246 +       fprintf(f, "quantum %s ", sprint_size(qopt->quantum, b1));
 247 +       if (show_details) {
 248 +               fprintf(f, "limit %up flows %u/%u ",
 249 +                       qopt->limit, qopt->flows, qopt->divisor);
 250 +       }
 251 +       if (qopt->perturb_period)
 252 +               fprintf(f, "perturb %dsec ", qopt->perturb_period);
 253 +
 254 +               fprintf(f,"hash: ");
 255 +       switch(qopt->hash_kind)
 256 +       {
 257 +       case TCA_SFQ_HASH_CLASSIC:
 258 +               fprintf(f,"classic");
 259 +               break;
 260 +       case TCA_SFQ_HASH_DST:
 261 +               fprintf(f,"dst");
 262 +               break;
 263 +       case TCA_SFQ_HASH_SRC:
 264 +               fprintf(f,"src");
 265 +               break;
 266 +       case TCA_SFQ_HASH_CTORIGSRC:
 267 +               fprintf(f,"ctorigsrc");
 268 +               break;
 269 +       case TCA_SFQ_HASH_CTORIGDST:
 270 +               fprintf(f,"ctorigdst");
 271 +               break;
 272 +       case TCA_SFQ_HASH_CTREPLSRC:
 273 +               fprintf(f,"ctreplsrc");
 274 +               break;
 275 +       case TCA_SFQ_HASH_CTREPLDST:
 276 +               fprintf(f,"ctrepldst");
 277 +               break;
 278 +       case TCA_SFQ_HASH_CTNATCHG:
 279 +               fprintf(f,"ctnatchg");
 280 +               break;
 281 +       default:
 282 +               fprintf(f,"Unknown");
 283 +       }
 284 +       return 0;
 285 +}
 286 +
 287 +static int esfq_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
 288 +{
 289 +       return 0;
 290 +}
 291 +
 292 +
 293 +struct qdisc_util esfq_qdisc_util = {
 294 +       .id = "esfq",
 295 +       .parse_qopt = esfq_parse_opt,
 296 +       .print_qopt = esfq_print_opt,
 297 +       .print_xstats = esfq_print_xstats,
 298 +};