src/network/tc/qdisc.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later
   2  * Copyright © 2019 VMware, Inc. */
   3 #pragma once
   4
   5 #include "conf-parser.h"
   6 #include "networkd-link.h"
   7 #include "networkd-network.h"
   8 #include "networkd-util.h"
   9 #include "tc.h"
  10
  11 typedef enum QDiscKind {
  12         QDISC_KIND_BFIFO,
  13         QDISC_KIND_CAKE,
  14         QDISC_KIND_CODEL,
  15         QDISC_KIND_DRR,
  16         QDISC_KIND_ETS,
  17         QDISC_KIND_FQ,
  18         QDISC_KIND_FQ_CODEL,
  19         QDISC_KIND_FQ_PIE,
  20         QDISC_KIND_GRED,
  21         QDISC_KIND_HHF,
  22         QDISC_KIND_HTB,
  23         QDISC_KIND_NETEM,
  24         QDISC_KIND_PFIFO,
  25         QDISC_KIND_PFIFO_FAST,
  26         QDISC_KIND_PFIFO_HEAD_DROP,
  27         QDISC_KIND_PIE,
  28         QDISC_KIND_QFQ,
  29         QDISC_KIND_SFB,
  30         QDISC_KIND_SFQ,
  31         QDISC_KIND_TBF,
  32         QDISC_KIND_TEQL,
  33         _QDISC_KIND_MAX,
  34         _QDISC_KIND_INVALID = -EINVAL,
  35 } QDiscKind;
  36
  37 typedef struct QDisc {
  38         TrafficControl meta;
  39
  40         NetworkConfigSection *section;
  41         Network *network;
  42
  43         int family;
  44         uint32_t handle;
  45         uint32_t parent;
  46
  47         char *tca_kind;
  48         QDiscKind kind;
  49 } QDisc;
  50
  51 typedef struct QDiscVTable {
  52         size_t object_size;
  53         const char *tca_kind;
  54         /* called in qdisc_new() */
  55         int (*init)(QDisc *qdisc);
  56         int (*fill_tca_kind)(Link *link, QDisc *qdisc, sd_netlink_message *m);
  57         int (*fill_message)(Link *link, QDisc *qdisc, sd_netlink_message *m);
  58         int (*verify)(QDisc *qdisc);
  59 } QDiscVTable;
  60
  61 extern const QDiscVTable * const qdisc_vtable[_QDISC_KIND_MAX];
  62
  63 #define QDISC_VTABLE(q) ((q)->kind != _QDISC_KIND_INVALID ? qdisc_vtable[(q)->kind] : NULL)
  64
  65 /* For casting a qdisc into the various qdisc kinds */
  66 #define DEFINE_QDISC_CAST(UPPERCASE, MixedCase)                           \
  67         static inline MixedCase* UPPERCASE(QDisc *q) {                    \
  68                 if (_unlikely_(!q || q->kind != QDISC_KIND_##UPPERCASE))  \
  69                         return NULL;                                      \
  70                                                                           \
  71                 return (MixedCase*) q;                                    \
  72         }
  73
  74 /* For casting the various qdisc kinds into a qdisc */
  75 #define QDISC(q) (&(q)->meta)
  76
  77 QDisc* qdisc_free(QDisc *qdisc);
  78 int qdisc_new_static(QDiscKind kind, Network *network, const char *filename, unsigned section_line, QDisc **ret);
  79
  80 int qdisc_configure(Link *link, QDisc *qdisc);
  81 int qdisc_section_verify(QDisc *qdisc, bool *has_root, bool *has_clsact);
  82
  83 DEFINE_NETWORK_SECTION_FUNCTIONS(QDisc, qdisc_free);
  84
  85 DEFINE_TC_CAST(QDISC, QDisc);
  86
  87 CONFIG_PARSER_PROTOTYPE(config_parse_qdisc_parent);
  88 CONFIG_PARSER_PROTOTYPE(config_parse_qdisc_handle);
  89
  90 #include "cake.h"
  91 #include "codel.h"
  92 #include "ets.h"
  93 #include "fifo.h"
  94 #include "fq-codel.h"
  95 #include "fq-pie.h"
  96 #include "fq.h"
  97 #include "gred.h"
  98 #include "hhf.h"
  99 #include "htb.h"
 100 #include "pie.h"
 101 #include "qfq.h"
 102 #include "netem.h"
 103 #include "drr.h"
 104 #include "sfb.h"
 105 #include "sfq.h"
 106 #include "tbf.h"
 107 #include "teql.h"