+++ /dev/null
-/*
- * lib/route/sch/cbq.c Class Based Queueing
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation version 2.1
- * of the License.
- *
- * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
- */
-
-#include <netlink-local.h>
-#include <netlink-tc.h>
-#include <netlink/netlink.h>
-#include <netlink/utils.h>
-#include <netlink/route/qdisc.h>
-#include <netlink/route/qdisc-modules.h>
-#include <netlink/route/class.h>
-#include <netlink/route/class-modules.h>
-#include <netlink/route/link.h>
-#include <netlink/route/sch/cbq.h>
-#include <netlink/route/cls/police.h>
-
-/**
- * @ingroup qdisc
- * @ingroup class
- * @defgroup cbq Class Based Queueing (CBQ)
- * @{
- */
-
-static struct trans_tbl ovl_strategies[] = {
- __ADD(TC_CBQ_OVL_CLASSIC,classic)
- __ADD(TC_CBQ_OVL_DELAY,delay)
- __ADD(TC_CBQ_OVL_LOWPRIO,lowprio)
- __ADD(TC_CBQ_OVL_DROP,drop)
- __ADD(TC_CBQ_OVL_RCLASSIC,rclassic)
-};
-
-/**
- * Convert a CBQ OVL strategy to a character string
- * @arg type CBQ OVL strategy
- * @arg buf destination buffer
- * @arg len length of destination buffer
- *
- * Converts a CBQ OVL strategy to a character string and stores in the
- * provided buffer. Returns the destination buffer or the type
- * encoded in hex if no match was found.
- */
-char *nl_ovl_strategy2str(int type, char *buf, size_t len)
-{
- return __type2str(type, buf, len, ovl_strategies,
- ARRAY_SIZE(ovl_strategies));
-}
-
-/**
- * Convert a string to a CBQ OVL strategy
- * @arg name CBQ OVL stragegy name
- *
- * Converts a CBQ OVL stragegy name to it's corresponding CBQ OVL strategy
- * type. Returns the type or -1 if none was found.
- */
-int nl_str2ovl_strategy(const char *name)
-{
- return __str2type(name, ovl_strategies, ARRAY_SIZE(ovl_strategies));
-}
-
-static struct nla_policy cbq_policy[TCA_CBQ_MAX+1] = {
- [TCA_CBQ_LSSOPT] = { .minlen = sizeof(struct tc_cbq_lssopt) },
- [TCA_CBQ_RATE] = { .minlen = sizeof(struct tc_ratespec) },
- [TCA_CBQ_WRROPT] = { .minlen = sizeof(struct tc_cbq_wrropt) },
- [TCA_CBQ_OVL_STRATEGY] = { .minlen = sizeof(struct tc_cbq_ovl) },
- [TCA_CBQ_FOPT] = { .minlen = sizeof(struct tc_cbq_fopt) },
- [TCA_CBQ_POLICE] = { .minlen = sizeof(struct tc_cbq_police) },
-};
-
-static inline struct rtnl_cbq *cbq_qdisc(struct rtnl_tca *tca)
-{
- return (struct rtnl_cbq *) tca->tc_subdata;
-}
-
-static inline struct rtnl_cbq *cbq_alloc(struct rtnl_tca *tca)
-{
- if (!tca->tc_subdata)
- tca->tc_subdata = calloc(1, sizeof(struct rtnl_qdisc));
-
- return cbq_qdisc(tca);
-}
-
-
-static int cbq_msg_parser(struct rtnl_tca *tca)
-{
- struct nlattr *tb[TCA_CBQ_MAX + 1];
- struct rtnl_cbq *cbq;
- int err;
-
- err = tca_parse(tb, TCA_CBQ_MAX, tca, cbq_policy);
- if (err < 0)
- return err;
-
- cbq = cbq_alloc(tca);
- if (!cbq)
- return nl_errno(ENOMEM);
-
- nla_memcpy(&cbq->cbq_lss, tb[TCA_CBQ_LSSOPT], sizeof(cbq->cbq_lss));
- nla_memcpy(&cbq->cbq_rate, tb[TCA_CBQ_RATE], sizeof(cbq->cbq_rate));
- nla_memcpy(&cbq->cbq_wrr, tb[TCA_CBQ_WRROPT], sizeof(cbq->cbq_wrr));
- nla_memcpy(&cbq->cbq_fopt, tb[TCA_CBQ_FOPT], sizeof(cbq->cbq_fopt));
- nla_memcpy(&cbq->cbq_ovl, tb[TCA_CBQ_OVL_STRATEGY],
- sizeof(cbq->cbq_ovl));
- nla_memcpy(&cbq->cbq_police, tb[TCA_CBQ_POLICE],
- sizeof(cbq->cbq_police));
-
- return 0;
-}
-
-static int cbq_qdisc_msg_parser(struct rtnl_qdisc *qdisc)
-{
- return cbq_msg_parser((struct rtnl_tca *) qdisc);
-}
-
-static int cbq_class_msg_parser(struct rtnl_class *class)
-{
- return cbq_msg_parser((struct rtnl_tca *) class);
-}
-
-static void cbq_qdisc_free_data(struct rtnl_qdisc *qdisc)
-{
- free(qdisc->q_subdata);
-}
-
-static void cbq_class_free_data(struct rtnl_class *class)
-{
- free(class->c_subdata);
-}
-
-static int cbq_dump_brief(struct rtnl_tca *tca, struct nl_dump_params *p,
- int line)
-{
- struct rtnl_cbq *cbq;
- double r, rbit;
- char *ru, *rubit;
-
- cbq = cbq_qdisc(tca);
- if (!cbq)
- goto ignore;
-
- r = nl_cancel_down_bytes(cbq->cbq_rate.rate, &ru);
- rbit = nl_cancel_down_bits(cbq->cbq_rate.rate * 8, &rubit);
-
- dp_dump(p, " rate %.2f%s/s (%.0f%s) prio %u",
- r, ru, rbit, rubit, cbq->cbq_wrr.priority);
-
-ignore:
- return line;
-}
-
-static int cbq_qdisc_dump_brief(struct rtnl_qdisc *qdisc,
- struct nl_dump_params *p, int line)
-{
- return cbq_dump_brief((struct rtnl_tca *) qdisc, p, line);
-}
-
-static int cbq_class_dump_brief(struct rtnl_class *class,
- struct nl_dump_params *p, int line)
-{
- return cbq_dump_brief((struct rtnl_tca *) class, p, line);
-}
-
-static int cbq_dump_full(struct rtnl_tca *tca, struct nl_dump_params *p,
- int line)
-{
- struct rtnl_cbq *cbq;
- char *unit, buf[32];
- double w;
- uint32_t el;
-
- cbq = cbq_qdisc(tca);
- if (!cbq)
- goto ignore;
-
- w = nl_cancel_down_bits(cbq->cbq_wrr.weight * 8, &unit);
-
- dp_dump(p, "avgpkt %u mpu %u cell %u allot %u weight %.0f%s\n",
- cbq->cbq_lss.avpkt,
- cbq->cbq_rate.mpu,
- 1 << cbq->cbq_rate.cell_log,
- cbq->cbq_wrr.allot, w, unit);
-
- el = cbq->cbq_lss.ewma_log;
- dp_dump_line(p, line++, " minidle %uus maxidle %uus offtime "
- "%uus level %u ewma_log %u\n",
- nl_ticks2us(cbq->cbq_lss.minidle >> el),
- nl_ticks2us(cbq->cbq_lss.maxidle >> el),
- nl_ticks2us(cbq->cbq_lss.offtime >> el),
- cbq->cbq_lss.level,
- cbq->cbq_lss.ewma_log);
-
- dp_dump_line(p, line++, " penalty %uus strategy %s ",
- nl_ticks2us(cbq->cbq_ovl.penalty),
- nl_ovl_strategy2str(cbq->cbq_ovl.strategy, buf, sizeof(buf)));
-
- dp_dump(p, "split %s defmap 0x%08x ",
- rtnl_tc_handle2str(cbq->cbq_fopt.split, buf, sizeof(buf)),
- cbq->cbq_fopt.defmap);
-
- dp_dump(p, "police %s",
- nl_police2str(cbq->cbq_police.police, buf, sizeof(buf)));
-
-ignore:
- return line;
-}
-
-static int cbq_qdisc_dump_full(struct rtnl_qdisc *qdisc,
- struct nl_dump_params *p, int line)
-{
- return cbq_dump_full((struct rtnl_tca *) qdisc, p, line);
-}
-
-static int cbq_class_dump_full(struct rtnl_class *class,
- struct nl_dump_params *p, int line)
-{
- return cbq_dump_full((struct rtnl_tca *) class, p, line);
-}
-
-static int cbq_dump_with_stats(struct rtnl_tca *tca, struct nl_dump_params *p,
- int line)
-{
- struct tc_cbq_xstats *x = tca_xstats(tca);
-
- if (!x)
- goto ignore;
-
- dp_dump_line(p, line++, " borrows overact "
- " avgidle undertime\n");
- dp_dump_line(p, line++, " %10u %10u %10u %10u\n",
- x->borrows, x->overactions, x->avgidle, x->undertime);
-
-ignore:
- return line;
-}
-
-static int cbq_qdisc_dump_with_stats(struct rtnl_qdisc *qdisc,
- struct nl_dump_params *p, int line)
-{
- return cbq_dump_with_stats((struct rtnl_tca *) qdisc, p, line);
-}
-
-static int cbq_class_dump_with_stats(struct rtnl_class *class,
- struct nl_dump_params *p, int line)
-{
- return cbq_dump_with_stats((struct rtnl_tca *) class, p, line);
-}
-
-static struct rtnl_qdisc_ops cbq_qdisc_ops = {
- .qo_kind = "cbq",
- .qo_msg_parser = cbq_qdisc_msg_parser,
- .qo_free_data = cbq_qdisc_free_data,
- .qo_dump[NL_DUMP_BRIEF] = cbq_qdisc_dump_brief,
- .qo_dump[NL_DUMP_FULL] = cbq_qdisc_dump_full,
- .qo_dump[NL_DUMP_STATS] = cbq_qdisc_dump_with_stats,
-};
-
-static struct rtnl_class_ops cbq_class_ops = {
- .co_kind = "cbq",
- .co_msg_parser = cbq_class_msg_parser,
- .co_free_data = cbq_class_free_data,
- .co_dump[NL_DUMP_BRIEF] = cbq_class_dump_brief,
- .co_dump[NL_DUMP_FULL] = cbq_class_dump_full,
- .co_dump[NL_DUMP_STATS] = cbq_class_dump_with_stats,
-};
-
-static void __init cbq_init(void)
-{
- rtnl_qdisc_register(&cbq_qdisc_ops);
- rtnl_class_register(&cbq_class_ops);
-}
-
-static void __exit cbq_exit(void)
-{
- rtnl_qdisc_unregister(&cbq_qdisc_ops);
- rtnl_class_unregister(&cbq_class_ops);
-}
-
-/** @} */
git://git.onelab.eu / libnl.git / blobdiff