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

   1 --- a/include/linux/pkt_sched.h
   2 +++ b/include/linux/pkt_sched.h
   3 @@ -174,8 +174,38 @@ struct tc_sfq_qopt
   4   *
   5   *     The only reason for this is efficiency, it is possible
   6   *     to change these parameters in compile time.
   7 + *
   8 + *     If you need to play with these values use esfq instead.
   9   */
  10
  11 +/* ESFQ section */
  12 +
  13 +enum
  14 +{
  15 +       /* traditional */
  16 +       TCA_SFQ_HASH_CLASSIC,
  17 +       TCA_SFQ_HASH_DST,
  18 +       TCA_SFQ_HASH_SRC,
  19 +       /* conntrack */
  20 +       TCA_SFQ_HASH_CTORIGDST,
  21 +       TCA_SFQ_HASH_CTORIGSRC,
  22 +       TCA_SFQ_HASH_CTREPLDST,
  23 +       TCA_SFQ_HASH_CTREPLSRC,
  24 +       TCA_SFQ_HASH_CTNATCHG,
  25 +};
  26 +
  27 +struct tc_esfq_qopt
  28 +{
  29 +       unsigned        quantum;        /* Bytes per round allocated to flow */
  30 +       int             perturb_period; /* Period of hash perturbation */
  31 +       __u32           limit;          /* Maximal packets in queue */
  32 +       unsigned        divisor;        /* Hash divisor  */
  33 +       unsigned        flows;          /* Maximal number of flows  */
  34 +       unsigned        hash_kind;      /* Hash function to use for flow identification */
  35 +};
  36 +
  37 +
  38 +
  39  /* RED section */
  40
  41  enum
  42 @@ -588,8 +618,37 @@ struct tc_sfq_xstats
  43   *
  44   *     The only reason for this is efficiency, it is possible
  45   *     to change these parameters in compile time.
  46 + *
  47 + *     If you need to play with these values use esfq instead.
  48   */
  49
  50 +/* ESFQ section */
  51 +
  52 +enum
  53 +{
  54 +       /* traditional */
  55 +       TCA_SFQ_HASH_CLASSIC,
  56 +       TCA_SFQ_HASH_DST,
  57 +       TCA_SFQ_HASH_SRC,
  58 +       /* conntrack */
  59 +       TCA_SFQ_HASH_CTORIGDST,
  60 +       TCA_SFQ_HASH_CTORIGSRC,
  61 +       TCA_SFQ_HASH_CTREPLDST,
  62 +       TCA_SFQ_HASH_CTREPLSRC,
  63 +       TCA_SFQ_HASH_CTNATCHG,
  64 +};
  65 +
  66 +struct tc_esfq_qopt
  67 +{
  68 +       unsigned        quantum;        /* Bytes per round allocated to flow */
  69 +       int             perturb_period; /* Period of hash perturbation */
  70 +       __u32           limit;          /* Maximal packets in queue */
  71 +       unsigned        divisor;        /* Hash divisor  */
  72 +       unsigned        flows;          /* Maximal number of flows  */
  73 +       unsigned        hash_kind;      /* Hash function to use for flow identification */
  74 +};
  75 +
  76 +
  77  /* RED section */
  78
  79  enum
  80 --- a/tc/Makefile
  81 +++ b/tc/Makefile
  82 @@ -8,6 +8,7 @@ SHARED_LIBS ?= y
  83  TCMODULES :=
  84  TCMODULES += q_fifo.o
  85  TCMODULES += q_sfq.o
  86 +TCMODULES += q_esfq.o
  87  TCMODULES += q_red.o
  88  TCMODULES += q_prio.o
  89  TCMODULES += q_tbf.o
  90 --- /dev/null
  91 +++ b/tc/q_esfq.c
  92 @@ -0,0 +1,200 @@
  93 +/*
  94 + * q_esfq.c            ESFQ.
  95 + *
  96 + *             This program is free software; you can redistribute it and/or
  97 + *             modify it under the terms of the GNU General Public License
  98 + *             as published by the Free Software Foundation; either version
  99 + *             2 of the License, or (at your option) any later version.
 100 + *
 101 + * Authors:    Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 102 + *
 103 + * Changes:    Alexander Atanasov, <alex@ssi.bg>
 104 + *             Alexander Clouter, <alex@digriz.org.uk>
 105 + *             Corey Hickey, <bugfood-c@fatooh.org>
 106 + *
 107 + */
 108 +
 109 +#include <stdio.h>
 110 +#include <stdlib.h>
 111 +#include <unistd.h>
 112 +#include <syslog.h>
 113 +#include <fcntl.h>
 114 +#include <math.h>
 115 +#include <sys/socket.h>
 116 +#include <netinet/in.h>
 117 +#include <arpa/inet.h>
 118 +#include <string.h>
 119 +
 120 +#include "utils.h"
 121 +#include "tc_util.h"
 122 +
 123 +static void explain(void)
 124 +{
 125 +       fprintf(stderr, "Usage: ... esfq [ perturb SECS ] [ quantum BYTES ] [ depth FLOWS ]\n\t[ divisor HASHBITS ] [ limit PKTS ] [ hash HASHTYPE]\n");
 126 +       fprintf(stderr,"Where: \n");
 127 +       fprintf(stderr,"HASHTYPE := { classic | src | dst | ctorigdst | ctorigsrc | ctrepldst | ctreplsrc | ctnatchg }\n");
 128 +}
 129 +
 130 +#define usage() return(-1)
 131 +
 132 +static int esfq_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
 133 +{
 134 +       int ok=0;
 135 +       struct tc_esfq_qopt opt;
 136 +
 137 +       memset(&opt, 0, sizeof(opt));
 138 +
 139 +       opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
 140 +
 141 +       while (argc > 0) {
 142 +               if (strcmp(*argv, "quantum") == 0) {
 143 +                       NEXT_ARG();
 144 +                       if (get_size(&opt.quantum, *argv)) {
 145 +                               fprintf(stderr, "Illegal \"quantum\"\n");
 146 +                               return -1;
 147 +                       }
 148 +                       ok++;
 149 +               } else if (strcmp(*argv, "perturb") == 0) {
 150 +                       NEXT_ARG();
 151 +                       if (get_integer(&opt.perturb_period, *argv, 0)) {
 152 +                               fprintf(stderr, "Illegal \"perturb\"\n");
 153 +                               return -1;
 154 +                       }
 155 +                       ok++;
 156 +               } else if (strcmp(*argv, "depth") == 0) {
 157 +                       NEXT_ARG();
 158 +                       if (get_integer((int *) &opt.flows, *argv, 0)) {
 159 +                               fprintf(stderr, "Illegal \"depth\"\n");
 160 +                               return -1;
 161 +                       }
 162 +                       ok++;
 163 +               } else if (strcmp(*argv, "divisor") == 0) {
 164 +                       NEXT_ARG();
 165 +                       if (get_integer((int *) &opt.divisor, *argv, 0)) {
 166 +                               fprintf(stderr, "Illegal \"divisor\"\n");
 167 +                               return -1;
 168 +                       }
 169 +                       if(opt.divisor >= 14) {
 170 +                               fprintf(stderr, "Illegal \"divisor\": must be < 14\n");
 171 +                               return -1;
 172 +                       }
 173 +                       opt.divisor=pow(2,opt.divisor);
 174 +                       ok++;
 175 +               } else if (strcmp(*argv, "limit") == 0) {
 176 +                       NEXT_ARG();
 177 +                       if (get_integer((int *) &opt.limit, *argv, 0)) {
 178 +                               fprintf(stderr, "Illegal \"limit\"\n");
 179 +                               return -1;
 180 +                       }
 181 +                       ok++;
 182 +               } else if (strcmp(*argv, "hash") == 0) {
 183 +                       NEXT_ARG();
 184 +                       if(strcmp(*argv, "classic") == 0) {
 185 +                               opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
 186 +                       } else
 187 +                       if(strcmp(*argv, "dst") == 0) {
 188 +                               opt.hash_kind= TCA_SFQ_HASH_DST;
 189 +                       } else
 190 +                       if(strcmp(*argv, "src") == 0) {
 191 +                               opt.hash_kind= TCA_SFQ_HASH_SRC;
 192 +                       } else
 193 +                       if(strcmp(*argv, "ctorigsrc") == 0) {
 194 +                               opt.hash_kind= TCA_SFQ_HASH_CTORIGSRC;
 195 +                       } else
 196 +                       if(strcmp(*argv, "ctorigdst") == 0) {
 197 +                               opt.hash_kind= TCA_SFQ_HASH_CTORIGDST;
 198 +                       } else
 199 +                       if(strcmp(*argv, "ctreplsrc") == 0) {
 200 +                               opt.hash_kind= TCA_SFQ_HASH_CTREPLSRC;
 201 +                       } else
 202 +                       if(strcmp(*argv, "ctrepldst") == 0) {
 203 +                               opt.hash_kind= TCA_SFQ_HASH_CTREPLDST;
 204 +                       } else
 205 +                       if(strcmp(*argv, "ctnatchg") == 0) {
 206 +                               opt.hash_kind= TCA_SFQ_HASH_CTNATCHG;
 207 +                       } else {
 208 +                               fprintf(stderr, "Illegal \"hash\"\n");
 209 +                               explain();
 210 +                               return -1;
 211 +                       }
 212 +                       ok++;
 213 +               } else if (strcmp(*argv, "help") == 0) {
 214 +                       explain();
 215 +                       return -1;
 216 +               } else {
 217 +                       fprintf(stderr, "What is \"%s\"?\n", *argv);
 218 +                       explain();
 219 +                       return -1;
 220 +               }
 221 +               argc--; argv++;
 222 +       }
 223 +
 224 +       if (ok)
 225 +               addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
 226 +       return 0;
 227 +}
 228 +
 229 +static int esfq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 230 +{
 231 +       struct tc_esfq_qopt *qopt;
 232 +       SPRINT_BUF(b1);
 233 +
 234 +       if (opt == NULL)
 235 +               return 0;
 236 +
 237 +       if (RTA_PAYLOAD(opt)  < sizeof(*qopt))
 238 +               return -1;
 239 +       qopt = RTA_DATA(opt);
 240 +       fprintf(f, "quantum %s ", sprint_size(qopt->quantum, b1));
 241 +       if (show_details) {
 242 +               fprintf(f, "limit %up flows %u/%u ",
 243 +                       qopt->limit, qopt->flows, qopt->divisor);
 244 +       }
 245 +       if (qopt->perturb_period)
 246 +               fprintf(f, "perturb %dsec ", qopt->perturb_period);
 247 +
 248 +               fprintf(f,"hash: ");
 249 +       switch(qopt->hash_kind)
 250 +       {
 251 +       case TCA_SFQ_HASH_CLASSIC:
 252 +               fprintf(f,"classic");
 253 +               break;
 254 +       case TCA_SFQ_HASH_DST:
 255 +               fprintf(f,"dst");
 256 +               break;
 257 +       case TCA_SFQ_HASH_SRC:
 258 +               fprintf(f,"src");
 259 +               break;
 260 +       case TCA_SFQ_HASH_CTORIGSRC:
 261 +               fprintf(f,"ctorigsrc");
 262 +               break;
 263 +       case TCA_SFQ_HASH_CTORIGDST:
 264 +               fprintf(f,"ctorigdst");
 265 +               break;
 266 +       case TCA_SFQ_HASH_CTREPLSRC:
 267 +               fprintf(f,"ctreplsrc");
 268 +               break;
 269 +       case TCA_SFQ_HASH_CTREPLDST:
 270 +               fprintf(f,"ctrepldst");
 271 +               break;
 272 +       case TCA_SFQ_HASH_CTNATCHG:
 273 +               fprintf(f,"ctnatchg");
 274 +               break;
 275 +       default:
 276 +               fprintf(f,"Unknown");
 277 +       }
 278 +       return 0;
 279 +}
 280 +
 281 +static int esfq_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
 282 +{
 283 +       return 0;
 284 +}
 285 +
 286 +
 287 +struct qdisc_util esfq_qdisc_util = {
 288 +       .id = "esfq",
 289 +       .parse_qopt = esfq_parse_opt,
 290 +       .print_qopt = esfq_print_opt,
 291 +       .print_xstats = esfq_print_xstats,
 292 +};