X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=tc%2Fq_red.c;fp=tc%2Fq_red.c;h=0000000000000000000000000000000000000000;hp=1743f6cf548b164c4eebd409522d370a6bfac774;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994 diff --git a/tc/q_red.c b/tc/q_red.c deleted file mode 100644 index 1743f6c..0000000 --- a/tc/q_red.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * q_red.c RED. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Authors: Alexey Kuznetsov, - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "utils.h" -#include "tc_util.h" - -#include "tc_red.h" - -static void explain(void) -{ - fprintf(stderr, "Usage: ... red limit BYTES min BYTES max BYTES avpkt BYTES burst PACKETS\n"); - fprintf(stderr, " probability PROBABILITY bandwidth KBPS [ ecn ]\n"); -} - -#define usage() return(-1) - -static int red_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) -{ - int ok=0; - struct tc_red_qopt opt; - unsigned burst = 0; - unsigned avpkt = 0; - double probability = 0.02; - unsigned rate = 0; - int ecn_ok = 0; - int wlog; - __u8 sbuf[256]; - struct rtattr *tail; - - memset(&opt, 0, sizeof(opt)); - - while (argc > 0) { - if (strcmp(*argv, "limit") == 0) { - NEXT_ARG(); - if (get_size(&opt.limit, *argv)) { - fprintf(stderr, "Illegal \"limit\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "min") == 0) { - NEXT_ARG(); - if (get_size(&opt.qth_min, *argv)) { - fprintf(stderr, "Illegal \"min\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "max") == 0) { - NEXT_ARG(); - if (get_size(&opt.qth_max, *argv)) { - fprintf(stderr, "Illegal \"max\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "burst") == 0) { - NEXT_ARG(); - if (get_unsigned(&burst, *argv, 0)) { - fprintf(stderr, "Illegal \"burst\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "avpkt") == 0) { - NEXT_ARG(); - if (get_size(&avpkt, *argv)) { - fprintf(stderr, "Illegal \"avpkt\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "probability") == 0) { - NEXT_ARG(); - if (sscanf(*argv, "%lg", &probability) != 1) { - fprintf(stderr, "Illegal \"probability\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "bandwidth") == 0) { - NEXT_ARG(); - if (get_rate(&rate, *argv)) { - fprintf(stderr, "Illegal \"bandwidth\"\n"); - return -1; - } - ok++; - } else if (strcmp(*argv, "ecn") == 0) { - ecn_ok = 1; - ok++; - } else if (strcmp(*argv, "help") == 0) { - explain(); - return -1; - } else { - fprintf(stderr, "What is \"%s\"?\n", *argv); - explain(); - return -1; - } - argc--; argv++; - } - - if (!ok) - return 0; - - if (rate == 0) - get_rate(&rate, "10Mbit"); - - if (!opt.qth_min || !opt.qth_max || !burst || !opt.limit || !avpkt) { - fprintf(stderr, "Required parameter (min, max, burst, limit, avpket) is missing\n"); - return -1; - } - - if ((wlog = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { - fprintf(stderr, "RED: failed to calculate EWMA constant.\n"); - return -1; - } - if (wlog >= 10) - fprintf(stderr, "RED: WARNING. Burst %d seems to be to large.\n", burst); - opt.Wlog = wlog; - if ((wlog = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { - fprintf(stderr, "RED: failed to calculate probability.\n"); - return -1; - } - opt.Plog = wlog; - if ((wlog = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) { - fprintf(stderr, "RED: failed to calculate idle damping table.\n"); - return -1; - } - opt.Scell_log = wlog; - if (ecn_ok) { -#ifdef TC_RED_ECN - opt.flags |= TC_RED_ECN; -#else - fprintf(stderr, "RED: ECN support is missing in this binary.\n"); - return -1; -#endif - } - - tail = NLMSG_TAIL(n); - addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); - addattr_l(n, 1024, TCA_RED_PARMS, &opt, sizeof(opt)); - addattr_l(n, 1024, TCA_RED_STAB, sbuf, 256); - tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; - return 0; -} - -static int red_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) -{ - struct rtattr *tb[TCA_RED_STAB+1]; - struct tc_red_qopt *qopt; - SPRINT_BUF(b1); - SPRINT_BUF(b2); - SPRINT_BUF(b3); - - if (opt == NULL) - return 0; - - parse_rtattr_nested(tb, TCA_RED_STAB, opt); - - if (tb[TCA_RED_PARMS] == NULL) - return -1; - qopt = RTA_DATA(tb[TCA_RED_PARMS]); - if (RTA_PAYLOAD(tb[TCA_RED_PARMS]) < sizeof(*qopt)) - return -1; - fprintf(f, "limit %s min %s max %s ", - sprint_size(qopt->limit, b1), - sprint_size(qopt->qth_min, b2), - sprint_size(qopt->qth_max, b3)); -#ifdef TC_RED_ECN - if (qopt->flags & TC_RED_ECN) - fprintf(f, "ecn "); -#endif - if (show_details) { - fprintf(f, "ewma %u Plog %u Scell_log %u", - qopt->Wlog, qopt->Plog, qopt->Scell_log); - } - return 0; -} - -static int red_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats) -{ -#ifdef TC_RED_ECN - struct tc_red_xstats *st; - - if (xstats == NULL) - return 0; - - if (RTA_PAYLOAD(xstats) < sizeof(*st)) - return -1; - - st = RTA_DATA(xstats); - fprintf(f, " marked %u early %u pdrop %u other %u", - st->marked, st->early, st->pdrop, st->other); - return 0; - -#endif - return 0; -} - - -struct qdisc_util red_qdisc_util = { - .id = "red", - .parse_qopt = red_parse_opt, - .print_qopt = red_print_opt, - .print_xstats = red_print_xstats, -};