include/uapi/linux/pkt_sched.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef __LINUX_PKT_SCHED_H
   3 #define __LINUX_PKT_SCHED_H
   4
   5 #include <linux/types.h>
   6
   7 /* Logical priority bands not depending on specific packet scheduler.
   8    Every scheduler will map them to real traffic classes, if it has
   9    no more precise mechanism to classify packets.
  10
  11    These numbers have no special meaning, though their coincidence
  12    with obsolete IPv6 values is not occasional :-). New IPv6 drafts
  13    preferred full anarchy inspired by diffserv group.
  14
  15    Note: TC_PRIO_BESTEFFORT does not mean that it is the most unhappy
  16    class, actually, as rule it will be handled with more care than
  17    filler or even bulk.
  18  */
  19
  20 #define TC_PRIO_BESTEFFORT              0
  21 #define TC_PRIO_FILLER                  1
  22 #define TC_PRIO_BULK                    2
  23 #define TC_PRIO_INTERACTIVE_BULK        4
  24 #define TC_PRIO_INTERACTIVE             6
  25 #define TC_PRIO_CONTROL                 7
  26
  27 #define TC_PRIO_MAX                     15
  28
  29 /* Generic queue statistics, available for all the elements.
  30    Particular schedulers may have also their private records.
  31  */
  32
  33 struct tc_stats {
  34         __u64   bytes;                  /* Number of enqueued bytes */
  35         __u32   packets;                /* Number of enqueued packets   */
  36         __u32   drops;                  /* Packets dropped because of lack of resources */
  37         __u32   overlimits;             /* Number of throttle events when this
  38                                          * flow goes out of allocated bandwidth */
  39         __u32   bps;                    /* Current flow byte rate */
  40         __u32   pps;                    /* Current flow packet rate */
  41         __u32   qlen;
  42         __u32   backlog;
  43 };
  44
  45 struct tc_estimator {
  46         signed char     interval;
  47         unsigned char   ewma_log;
  48 };
  49
  50 /* "Handles"
  51    ---------
  52
  53     All the traffic control objects have 32bit identifiers, or "handles".
  54
  55     They can be considered as opaque numbers from user API viewpoint,
  56     but actually they always consist of two fields: major and
  57     minor numbers, which are interpreted by kernel specially,
  58     that may be used by applications, though not recommended.
  59
  60     F.e. qdisc handles always have minor number equal to zero,
  61     classes (or flows) have major equal to parent qdisc major, and
  62     minor uniquely identifying class inside qdisc.
  63
  64     Macros to manipulate handles:
  65  */
  66
  67 #define TC_H_MAJ_MASK (0xFFFF0000U)
  68 #define TC_H_MIN_MASK (0x0000FFFFU)
  69 #define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
  70 #define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
  71 #define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
  72
  73 #define TC_H_UNSPEC     (0U)
  74 #define TC_H_ROOT       (0xFFFFFFFFU)
  75 #define TC_H_INGRESS    (0xFFFFFFF1U)
  76 #define TC_H_CLSACT     TC_H_INGRESS
  77
  78 #define TC_H_MIN_PRIORITY       0xFFE0U
  79 #define TC_H_MIN_INGRESS        0xFFF2U
  80 #define TC_H_MIN_EGRESS         0xFFF3U
  81
  82 /* Need to corrospond to iproute2 tc/tc_core.h "enum link_layer" */
  83 enum tc_link_layer {
  84         TC_LINKLAYER_UNAWARE, /* Indicate unaware old iproute2 util */
  85         TC_LINKLAYER_ETHERNET,
  86         TC_LINKLAYER_ATM,
  87 };
  88 #define TC_LINKLAYER_MASK 0x0F /* limit use to lower 4 bits */
  89
  90 struct tc_ratespec {
  91         unsigned char   cell_log;
  92         __u8            linklayer; /* lower 4 bits */
  93         unsigned short  overhead;
  94         short           cell_align;
  95         unsigned short  mpu;
  96         __u32           rate;
  97 };
  98
  99 #define TC_RTAB_SIZE    1024
 100
 101 struct tc_sizespec {
 102         unsigned char   cell_log;
 103         unsigned char   size_log;
 104         short           cell_align;
 105         int             overhead;
 106         unsigned int    linklayer;
 107         unsigned int    mpu;
 108         unsigned int    mtu;
 109         unsigned int    tsize;
 110 };
 111
 112 enum {
 113         TCA_STAB_UNSPEC,
 114         TCA_STAB_BASE,
 115         TCA_STAB_DATA,
 116         __TCA_STAB_MAX
 117 };
 118
 119 #define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
 120
 121 /* FIFO section */
 122
 123 struct tc_fifo_qopt {
 124         __u32   limit;  /* Queue length: bytes for bfifo, packets for pfifo */
 125 };
 126
 127 /* SKBPRIO section */
 128
 129 /*
 130  * Priorities go from zero to (SKBPRIO_MAX_PRIORITY - 1).
 131  * SKBPRIO_MAX_PRIORITY should be at least 64 in order for skbprio to be able
 132  * to map one to one the DS field of IPV4 and IPV6 headers.
 133  * Memory allocation grows linearly with SKBPRIO_MAX_PRIORITY.
 134  */
 135
 136 #define SKBPRIO_MAX_PRIORITY 64
 137
 138 struct tc_skbprio_qopt {
 139         __u32   limit;          /* Queue length in packets. */
 140 };
 141
 142 /* PRIO section */
 143
 144 #define TCQ_PRIO_BANDS  16
 145 #define TCQ_MIN_PRIO_BANDS 2
 146
 147 struct tc_prio_qopt {
 148         int     bands;                  /* Number of bands */
 149         __u8    priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
 150 };
 151
 152 /* MULTIQ section */
 153
 154 struct tc_multiq_qopt {
 155         __u16   bands;                  /* Number of bands */
 156         __u16   max_bands;              /* Maximum number of queues */
 157 };
 158
 159 /* PLUG section */
 160
 161 #define TCQ_PLUG_BUFFER                0
 162 #define TCQ_PLUG_RELEASE_ONE           1
 163 #define TCQ_PLUG_RELEASE_INDEFINITE    2
 164 #define TCQ_PLUG_LIMIT                 3
 165
 166 struct tc_plug_qopt {
 167         /* TCQ_PLUG_BUFFER: Inset a plug into the queue and
 168          *  buffer any incoming packets
 169          * TCQ_PLUG_RELEASE_ONE: Dequeue packets from queue head
 170          *   to beginning of the next plug.
 171          * TCQ_PLUG_RELEASE_INDEFINITE: Dequeue all packets from queue.
 172          *   Stop buffering packets until the next TCQ_PLUG_BUFFER
 173          *   command is received (just act as a pass-thru queue).
 174          * TCQ_PLUG_LIMIT: Increase/decrease queue size
 175          */
 176         int             action;
 177         __u32           limit;
 178 };
 179
 180 /* TBF section */
 181
 182 struct tc_tbf_qopt {
 183         struct tc_ratespec rate;
 184         struct tc_ratespec peakrate;
 185         __u32           limit;
 186         __u32           buffer;
 187         __u32           mtu;
 188 };
 189
 190 enum {
 191         TCA_TBF_UNSPEC,
 192         TCA_TBF_PARMS,
 193         TCA_TBF_RTAB,
 194         TCA_TBF_PTAB,
 195         TCA_TBF_RATE64,
 196         TCA_TBF_PRATE64,
 197         TCA_TBF_BURST,
 198         TCA_TBF_PBURST,
 199         TCA_TBF_PAD,
 200         __TCA_TBF_MAX,
 201 };
 202
 203 #define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
 204
 205
 206 /* TEQL section */
 207
 208 /* TEQL does not require any parameters */
 209
 210 /* SFQ section */
 211
 212 struct tc_sfq_qopt {
 213         unsigned        quantum;        /* Bytes per round allocated to flow */
 214         int             perturb_period; /* Period of hash perturbation */
 215         __u32           limit;          /* Maximal packets in queue */
 216         unsigned        divisor;        /* Hash divisor  */
 217         unsigned        flows;          /* Maximal number of flows  */
 218 };
 219
 220 struct tc_sfqred_stats {
 221         __u32           prob_drop;      /* Early drops, below max threshold */
 222         __u32           forced_drop;    /* Early drops, after max threshold */
 223         __u32           prob_mark;      /* Marked packets, below max threshold */
 224         __u32           forced_mark;    /* Marked packets, after max threshold */
 225         __u32           prob_mark_head; /* Marked packets, below max threshold */
 226         __u32           forced_mark_head;/* Marked packets, after max threshold */
 227 };
 228
 229 struct tc_sfq_qopt_v1 {
 230         struct tc_sfq_qopt v0;
 231         unsigned int    depth;          /* max number of packets per flow */
 232         unsigned int    headdrop;
 233 /* SFQRED parameters */
 234         __u32           limit;          /* HARD maximal flow queue length (bytes) */
 235         __u32           qth_min;        /* Min average length threshold (bytes) */
 236         __u32           qth_max;        /* Max average length threshold (bytes) */
 237         unsigned char   Wlog;           /* log(W)               */
 238         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 239         unsigned char   Scell_log;      /* cell size for idle damping */
 240         unsigned char   flags;
 241         __u32           max_P;          /* probability, high resolution */
 242 /* SFQRED stats */
 243         struct tc_sfqred_stats stats;
 244 };
 245
 246
 247 struct tc_sfq_xstats {
 248         __s32           allot;
 249 };
 250
 251 /* RED section */
 252
 253 enum {
 254         TCA_RED_UNSPEC,
 255         TCA_RED_PARMS,
 256         TCA_RED_STAB,
 257         TCA_RED_MAX_P,
 258         __TCA_RED_MAX,
 259 };
 260
 261 #define TCA_RED_MAX (__TCA_RED_MAX - 1)
 262
 263 struct tc_red_qopt {
 264         __u32           limit;          /* HARD maximal queue length (bytes)    */
 265         __u32           qth_min;        /* Min average length threshold (bytes) */
 266         __u32           qth_max;        /* Max average length threshold (bytes) */
 267         unsigned char   Wlog;           /* log(W)               */
 268         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 269         unsigned char   Scell_log;      /* cell size for idle damping */
 270         unsigned char   flags;
 271 #define TC_RED_ECN              1
 272 #define TC_RED_HARDDROP         2
 273 #define TC_RED_ADAPTATIVE       4
 274 };
 275
 276 struct tc_red_xstats {
 277         __u32           early;          /* Early drops */
 278         __u32           pdrop;          /* Drops due to queue limits */
 279         __u32           other;          /* Drops due to drop() calls */
 280         __u32           marked;         /* Marked packets */
 281 };
 282
 283 /* GRED section */
 284
 285 #define MAX_DPs 16
 286
 287 enum {
 288        TCA_GRED_UNSPEC,
 289        TCA_GRED_PARMS,
 290        TCA_GRED_STAB,
 291        TCA_GRED_DPS,
 292        TCA_GRED_MAX_P,
 293        TCA_GRED_LIMIT,
 294        TCA_GRED_VQ_LIST,        /* nested TCA_GRED_VQ_ENTRY */
 295        __TCA_GRED_MAX,
 296 };
 297
 298 #define TCA_GRED_MAX (__TCA_GRED_MAX - 1)
 299
 300 enum {
 301         TCA_GRED_VQ_ENTRY_UNSPEC,
 302         TCA_GRED_VQ_ENTRY,      /* nested TCA_GRED_VQ_* */
 303         __TCA_GRED_VQ_ENTRY_MAX,
 304 };
 305 #define TCA_GRED_VQ_ENTRY_MAX (__TCA_GRED_VQ_ENTRY_MAX - 1)
 306
 307 enum {
 308         TCA_GRED_VQ_UNSPEC,
 309         TCA_GRED_VQ_PAD,
 310         TCA_GRED_VQ_DP,                 /* u32 */
 311         TCA_GRED_VQ_STAT_BYTES,         /* u64 */
 312         TCA_GRED_VQ_STAT_PACKETS,       /* u32 */
 313         TCA_GRED_VQ_STAT_BACKLOG,       /* u32 */
 314         TCA_GRED_VQ_STAT_PROB_DROP,     /* u32 */
 315         TCA_GRED_VQ_STAT_PROB_MARK,     /* u32 */
 316         TCA_GRED_VQ_STAT_FORCED_DROP,   /* u32 */
 317         TCA_GRED_VQ_STAT_FORCED_MARK,   /* u32 */
 318         TCA_GRED_VQ_STAT_PDROP,         /* u32 */
 319         TCA_GRED_VQ_STAT_OTHER,         /* u32 */
 320         TCA_GRED_VQ_FLAGS,              /* u32 */
 321         __TCA_GRED_VQ_MAX
 322 };
 323
 324 #define TCA_GRED_VQ_MAX (__TCA_GRED_VQ_MAX - 1)
 325
 326 struct tc_gred_qopt {
 327         __u32           limit;        /* HARD maximal queue length (bytes)    */
 328         __u32           qth_min;      /* Min average length threshold (bytes) */
 329         __u32           qth_max;      /* Max average length threshold (bytes) */
 330         __u32           DP;           /* up to 2^32 DPs */
 331         __u32           backlog;
 332         __u32           qave;
 333         __u32           forced;
 334         __u32           early;
 335         __u32           other;
 336         __u32           pdrop;
 337         __u8            Wlog;         /* log(W)               */
 338         __u8            Plog;         /* log(P_max/(qth_max-qth_min)) */
 339         __u8            Scell_log;    /* cell size for idle damping */
 340         __u8            prio;         /* prio of this VQ */
 341         __u32           packets;
 342         __u32           bytesin;
 343 };
 344
 345 /* gred setup */
 346 struct tc_gred_sopt {
 347         __u32           DPs;
 348         __u32           def_DP;
 349         __u8            grio;
 350         __u8            flags;
 351         __u16           pad1;
 352 };
 353
 354 /* CHOKe section */
 355
 356 enum {
 357         TCA_CHOKE_UNSPEC,
 358         TCA_CHOKE_PARMS,
 359         TCA_CHOKE_STAB,
 360         TCA_CHOKE_MAX_P,
 361         __TCA_CHOKE_MAX,
 362 };
 363
 364 #define TCA_CHOKE_MAX (__TCA_CHOKE_MAX - 1)
 365
 366 struct tc_choke_qopt {
 367         __u32           limit;          /* Hard queue length (packets)  */
 368         __u32           qth_min;        /* Min average threshold (packets) */
 369         __u32           qth_max;        /* Max average threshold (packets) */
 370         unsigned char   Wlog;           /* log(W)               */
 371         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 372         unsigned char   Scell_log;      /* cell size for idle damping */
 373         unsigned char   flags;          /* see RED flags */
 374 };
 375
 376 struct tc_choke_xstats {
 377         __u32           early;          /* Early drops */
 378         __u32           pdrop;          /* Drops due to queue limits */
 379         __u32           other;          /* Drops due to drop() calls */
 380         __u32           marked;         /* Marked packets */
 381         __u32           matched;        /* Drops due to flow match */
 382 };
 383
 384 /* HTB section */
 385 #define TC_HTB_NUMPRIO          8
 386 #define TC_HTB_MAXDEPTH         8
 387 #define TC_HTB_PROTOVER         3 /* the same as HTB and TC's major */
 388
 389 struct tc_htb_opt {
 390         struct tc_ratespec      rate;
 391         struct tc_ratespec      ceil;
 392         __u32   buffer;
 393         __u32   cbuffer;
 394         __u32   quantum;
 395         __u32   level;          /* out only */
 396         __u32   prio;
 397 };
 398 struct tc_htb_glob {
 399         __u32 version;          /* to match HTB/TC */
 400         __u32 rate2quantum;     /* bps->quantum divisor */
 401         __u32 defcls;           /* default class number */
 402         __u32 debug;            /* debug flags */
 403
 404         /* stats */
 405         __u32 direct_pkts; /* count of non shaped packets */
 406 };
 407 enum {
 408         TCA_HTB_UNSPEC,
 409         TCA_HTB_PARMS,
 410         TCA_HTB_INIT,
 411         TCA_HTB_CTAB,
 412         TCA_HTB_RTAB,
 413         TCA_HTB_DIRECT_QLEN,
 414         TCA_HTB_RATE64,
 415         TCA_HTB_CEIL64,
 416         TCA_HTB_PAD,
 417         __TCA_HTB_MAX,
 418 };
 419
 420 #define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
 421
 422 struct tc_htb_xstats {
 423         __u32 lends;
 424         __u32 borrows;
 425         __u32 giants;   /* unused since 'Make HTB scheduler work with TSO.' */
 426         __s32 tokens;
 427         __s32 ctokens;
 428 };
 429
 430 /* HFSC section */
 431
 432 struct tc_hfsc_qopt {
 433         __u16   defcls;         /* default class */
 434 };
 435
 436 struct tc_service_curve {
 437         __u32   m1;             /* slope of the first segment in bps */
 438         __u32   d;              /* x-projection of the first segment in us */
 439         __u32   m2;             /* slope of the second segment in bps */
 440 };
 441
 442 struct tc_hfsc_stats {
 443         __u64   work;           /* total work done */
 444         __u64   rtwork;         /* work done by real-time criteria */
 445         __u32   period;         /* current period */
 446         __u32   level;          /* class level in hierarchy */
 447 };
 448
 449 enum {
 450         TCA_HFSC_UNSPEC,
 451         TCA_HFSC_RSC,
 452         TCA_HFSC_FSC,
 453         TCA_HFSC_USC,
 454         __TCA_HFSC_MAX,
 455 };
 456
 457 #define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)
 458
 459
 460 /* CBQ section */
 461
 462 #define TC_CBQ_MAXPRIO          8
 463 #define TC_CBQ_MAXLEVEL         8
 464 #define TC_CBQ_DEF_EWMA         5
 465
 466 struct tc_cbq_lssopt {
 467         unsigned char   change;
 468         unsigned char   flags;
 469 #define TCF_CBQ_LSS_BOUNDED     1
 470 #define TCF_CBQ_LSS_ISOLATED    2
 471         unsigned char   ewma_log;
 472         unsigned char   level;
 473 #define TCF_CBQ_LSS_FLAGS       1
 474 #define TCF_CBQ_LSS_EWMA        2
 475 #define TCF_CBQ_LSS_MAXIDLE     4
 476 #define TCF_CBQ_LSS_MINIDLE     8
 477 #define TCF_CBQ_LSS_OFFTIME     0x10
 478 #define TCF_CBQ_LSS_AVPKT       0x20
 479         __u32           maxidle;
 480         __u32           minidle;
 481         __u32           offtime;
 482         __u32           avpkt;
 483 };
 484
 485 struct tc_cbq_wrropt {
 486         unsigned char   flags;
 487         unsigned char   priority;
 488         unsigned char   cpriority;
 489         unsigned char   __reserved;
 490         __u32           allot;
 491         __u32           weight;
 492 };
 493
 494 struct tc_cbq_ovl {
 495         unsigned char   strategy;
 496 #define TC_CBQ_OVL_CLASSIC      0
 497 #define TC_CBQ_OVL_DELAY        1
 498 #define TC_CBQ_OVL_LOWPRIO      2
 499 #define TC_CBQ_OVL_DROP         3
 500 #define TC_CBQ_OVL_RCLASSIC     4
 501         unsigned char   priority2;
 502         __u16           pad;
 503         __u32           penalty;
 504 };
 505
 506 struct tc_cbq_police {
 507         unsigned char   police;
 508         unsigned char   __res1;
 509         unsigned short  __res2;
 510 };
 511
 512 struct tc_cbq_fopt {
 513         __u32           split;
 514         __u32           defmap;
 515         __u32           defchange;
 516 };
 517
 518 struct tc_cbq_xstats {
 519         __u32           borrows;
 520         __u32           overactions;
 521         __s32           avgidle;
 522         __s32           undertime;
 523 };
 524
 525 enum {
 526         TCA_CBQ_UNSPEC,
 527         TCA_CBQ_LSSOPT,
 528         TCA_CBQ_WRROPT,
 529         TCA_CBQ_FOPT,
 530         TCA_CBQ_OVL_STRATEGY,
 531         TCA_CBQ_RATE,
 532         TCA_CBQ_RTAB,
 533         TCA_CBQ_POLICE,
 534         __TCA_CBQ_MAX,
 535 };
 536
 537 #define TCA_CBQ_MAX     (__TCA_CBQ_MAX - 1)
 538
 539 /* dsmark section */
 540
 541 enum {
 542         TCA_DSMARK_UNSPEC,
 543         TCA_DSMARK_INDICES,
 544         TCA_DSMARK_DEFAULT_INDEX,
 545         TCA_DSMARK_SET_TC_INDEX,
 546         TCA_DSMARK_MASK,
 547         TCA_DSMARK_VALUE,
 548         __TCA_DSMARK_MAX,
 549 };
 550
 551 #define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)
 552
 553 /* ATM  section */
 554
 555 enum {
 556         TCA_ATM_UNSPEC,
 557         TCA_ATM_FD,             /* file/socket descriptor */
 558         TCA_ATM_PTR,            /* pointer to descriptor - later */
 559         TCA_ATM_HDR,            /* LL header */
 560         TCA_ATM_EXCESS,         /* excess traffic class (0 for CLP)  */
 561         TCA_ATM_ADDR,           /* PVC address (for output only) */
 562         TCA_ATM_STATE,          /* VC state (ATM_VS_*; for output only) */
 563         __TCA_ATM_MAX,
 564 };
 565
 566 #define TCA_ATM_MAX     (__TCA_ATM_MAX - 1)
 567
 568 /* Network emulator */
 569
 570 enum {
 571         TCA_NETEM_UNSPEC,
 572         TCA_NETEM_CORR,
 573         TCA_NETEM_DELAY_DIST,
 574         TCA_NETEM_REORDER,
 575         TCA_NETEM_CORRUPT,
 576         TCA_NETEM_LOSS,
 577         TCA_NETEM_RATE,
 578         TCA_NETEM_ECN,
 579         TCA_NETEM_RATE64,
 580         TCA_NETEM_PAD,
 581         TCA_NETEM_LATENCY64,
 582         TCA_NETEM_JITTER64,
 583         TCA_NETEM_SLOT,
 584         TCA_NETEM_SLOT_DIST,
 585         __TCA_NETEM_MAX,
 586 };
 587
 588 #define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)
 589
 590 struct tc_netem_qopt {
 591         __u32   latency;        /* added delay (us) */
 592         __u32   limit;          /* fifo limit (packets) */
 593         __u32   loss;           /* random packet loss (0=none ~0=100%) */
 594         __u32   gap;            /* re-ordering gap (0 for none) */
 595         __u32   duplicate;      /* random packet dup  (0=none ~0=100%) */
 596         __u32   jitter;         /* random jitter in latency (us) */
 597 };
 598
 599 struct tc_netem_corr {
 600         __u32   delay_corr;     /* delay correlation */
 601         __u32   loss_corr;      /* packet loss correlation */
 602         __u32   dup_corr;       /* duplicate correlation  */
 603 };
 604
 605 struct tc_netem_reorder {
 606         __u32   probability;
 607         __u32   correlation;
 608 };
 609
 610 struct tc_netem_corrupt {
 611         __u32   probability;
 612         __u32   correlation;
 613 };
 614
 615 struct tc_netem_rate {
 616         __u32   rate;   /* byte/s */
 617         __s32   packet_overhead;
 618         __u32   cell_size;
 619         __s32   cell_overhead;
 620 };
 621
 622 struct tc_netem_slot {
 623         __s64   min_delay; /* nsec */
 624         __s64   max_delay;
 625         __s32   max_packets;
 626         __s32   max_bytes;
 627         __s64   dist_delay; /* nsec */
 628         __s64   dist_jitter; /* nsec */
 629 };
 630
 631 enum {
 632         NETEM_LOSS_UNSPEC,
 633         NETEM_LOSS_GI,          /* General Intuitive - 4 state model */
 634         NETEM_LOSS_GE,          /* Gilbert Elliot models */
 635         __NETEM_LOSS_MAX
 636 };
 637 #define NETEM_LOSS_MAX (__NETEM_LOSS_MAX - 1)
 638
 639 /* State transition probabilities for 4 state model */
 640 struct tc_netem_gimodel {
 641         __u32   p13;
 642         __u32   p31;
 643         __u32   p32;
 644         __u32   p14;
 645         __u32   p23;
 646 };
 647
 648 /* Gilbert-Elliot models */
 649 struct tc_netem_gemodel {
 650         __u32 p;
 651         __u32 r;
 652         __u32 h;
 653         __u32 k1;
 654 };
 655
 656 #define NETEM_DIST_SCALE        8192
 657 #define NETEM_DIST_MAX          16384
 658
 659 /* DRR */
 660
 661 enum {
 662         TCA_DRR_UNSPEC,
 663         TCA_DRR_QUANTUM,
 664         __TCA_DRR_MAX
 665 };
 666
 667 #define TCA_DRR_MAX     (__TCA_DRR_MAX - 1)
 668
 669 struct tc_drr_stats {
 670         __u32   deficit;
 671 };
 672
 673 /* MQPRIO */
 674 #define TC_QOPT_BITMASK 15
 675 #define TC_QOPT_MAX_QUEUE 16
 676
 677 enum {
 678         TC_MQPRIO_HW_OFFLOAD_NONE,      /* no offload requested */
 679         TC_MQPRIO_HW_OFFLOAD_TCS,       /* offload TCs, no queue counts */
 680         __TC_MQPRIO_HW_OFFLOAD_MAX
 681 };
 682
 683 #define TC_MQPRIO_HW_OFFLOAD_MAX (__TC_MQPRIO_HW_OFFLOAD_MAX - 1)
 684
 685 enum {
 686         TC_MQPRIO_MODE_DCB,
 687         TC_MQPRIO_MODE_CHANNEL,
 688         __TC_MQPRIO_MODE_MAX
 689 };
 690
 691 #define __TC_MQPRIO_MODE_MAX (__TC_MQPRIO_MODE_MAX - 1)
 692
 693 enum {
 694         TC_MQPRIO_SHAPER_DCB,
 695         TC_MQPRIO_SHAPER_BW_RATE,       /* Add new shapers below */
 696         __TC_MQPRIO_SHAPER_MAX
 697 };
 698
 699 #define __TC_MQPRIO_SHAPER_MAX (__TC_MQPRIO_SHAPER_MAX - 1)
 700
 701 struct tc_mqprio_qopt {
 702         __u8    num_tc;
 703         __u8    prio_tc_map[TC_QOPT_BITMASK + 1];
 704         __u8    hw;
 705         __u16   count[TC_QOPT_MAX_QUEUE];
 706         __u16   offset[TC_QOPT_MAX_QUEUE];
 707 };
 708
 709 #define TC_MQPRIO_F_MODE                0x1
 710 #define TC_MQPRIO_F_SHAPER              0x2
 711 #define TC_MQPRIO_F_MIN_RATE            0x4
 712 #define TC_MQPRIO_F_MAX_RATE            0x8
 713
 714 enum {
 715         TCA_MQPRIO_UNSPEC,
 716         TCA_MQPRIO_MODE,
 717         TCA_MQPRIO_SHAPER,
 718         TCA_MQPRIO_MIN_RATE64,
 719         TCA_MQPRIO_MAX_RATE64,
 720         __TCA_MQPRIO_MAX,
 721 };
 722
 723 #define TCA_MQPRIO_MAX (__TCA_MQPRIO_MAX - 1)
 724
 725 /* SFB */
 726
 727 enum {
 728         TCA_SFB_UNSPEC,
 729         TCA_SFB_PARMS,
 730         __TCA_SFB_MAX,
 731 };
 732
 733 #define TCA_SFB_MAX (__TCA_SFB_MAX - 1)
 734
 735 /*
 736  * Note: increment, decrement are Q0.16 fixed-point values.
 737  */
 738 struct tc_sfb_qopt {
 739         __u32 rehash_interval;  /* delay between hash move, in ms */
 740         __u32 warmup_time;      /* double buffering warmup time in ms (warmup_time < rehash_interval) */
 741         __u32 max;              /* max len of qlen_min */
 742         __u32 bin_size;         /* maximum queue length per bin */
 743         __u32 increment;        /* probability increment, (d1 in Blue) */
 744         __u32 decrement;        /* probability decrement, (d2 in Blue) */
 745         __u32 limit;            /* max SFB queue length */
 746         __u32 penalty_rate;     /* inelastic flows are rate limited to 'rate' pps */
 747         __u32 penalty_burst;
 748 };
 749
 750 struct tc_sfb_xstats {
 751         __u32 earlydrop;
 752         __u32 penaltydrop;
 753         __u32 bucketdrop;
 754         __u32 queuedrop;
 755         __u32 childdrop; /* drops in child qdisc */
 756         __u32 marked;
 757         __u32 maxqlen;
 758         __u32 maxprob;
 759         __u32 avgprob;
 760 };
 761
 762 #define SFB_MAX_PROB 0xFFFF
 763
 764 /* QFQ */
 765 enum {
 766         TCA_QFQ_UNSPEC,
 767         TCA_QFQ_WEIGHT,
 768         TCA_QFQ_LMAX,
 769         __TCA_QFQ_MAX
 770 };
 771
 772 #define TCA_QFQ_MAX     (__TCA_QFQ_MAX - 1)
 773
 774 struct tc_qfq_stats {
 775         __u32 weight;
 776         __u32 lmax;
 777 };
 778
 779 /* CODEL */
 780
 781 enum {
 782         TCA_CODEL_UNSPEC,
 783         TCA_CODEL_TARGET,
 784         TCA_CODEL_LIMIT,
 785         TCA_CODEL_INTERVAL,
 786         TCA_CODEL_ECN,
 787         TCA_CODEL_CE_THRESHOLD,
 788         __TCA_CODEL_MAX
 789 };
 790
 791 #define TCA_CODEL_MAX   (__TCA_CODEL_MAX - 1)
 792
 793 struct tc_codel_xstats {
 794         __u32   maxpacket; /* largest packet we've seen so far */
 795         __u32   count;     /* how many drops we've done since the last time we
 796                             * entered dropping state
 797                             */
 798         __u32   lastcount; /* count at entry to dropping state */
 799         __u32   ldelay;    /* in-queue delay seen by most recently dequeued packet */
 800         __s32   drop_next; /* time to drop next packet */
 801         __u32   drop_overlimit; /* number of time max qdisc packet limit was hit */
 802         __u32   ecn_mark;  /* number of packets we ECN marked instead of dropped */
 803         __u32   dropping;  /* are we in dropping state ? */
 804         __u32   ce_mark;   /* number of CE marked packets because of ce_threshold */
 805 };
 806
 807 /* FQ_CODEL */
 808
 809 enum {
 810         TCA_FQ_CODEL_UNSPEC,
 811         TCA_FQ_CODEL_TARGET,
 812         TCA_FQ_CODEL_LIMIT,
 813         TCA_FQ_CODEL_INTERVAL,
 814         TCA_FQ_CODEL_ECN,
 815         TCA_FQ_CODEL_FLOWS,
 816         TCA_FQ_CODEL_QUANTUM,
 817         TCA_FQ_CODEL_CE_THRESHOLD,
 818         TCA_FQ_CODEL_DROP_BATCH_SIZE,
 819         TCA_FQ_CODEL_MEMORY_LIMIT,
 820         __TCA_FQ_CODEL_MAX
 821 };
 822
 823 #define TCA_FQ_CODEL_MAX        (__TCA_FQ_CODEL_MAX - 1)
 824
 825 enum {
 826         TCA_FQ_CODEL_XSTATS_QDISC,
 827         TCA_FQ_CODEL_XSTATS_CLASS,
 828 };
 829
 830 struct tc_fq_codel_qd_stats {
 831         __u32   maxpacket;      /* largest packet we've seen so far */
 832         __u32   drop_overlimit; /* number of time max qdisc
 833                                  * packet limit was hit
 834                                  */
 835         __u32   ecn_mark;       /* number of packets we ECN marked
 836                                  * instead of being dropped
 837                                  */
 838         __u32   new_flow_count; /* number of time packets
 839                                  * created a 'new flow'
 840                                  */
 841         __u32   new_flows_len;  /* count of flows in new list */
 842         __u32   old_flows_len;  /* count of flows in old list */
 843         __u32   ce_mark;        /* packets above ce_threshold */
 844         __u32   memory_usage;   /* in bytes */
 845         __u32   drop_overmemory;
 846 };
 847
 848 struct tc_fq_codel_cl_stats {
 849         __s32   deficit;
 850         __u32   ldelay;         /* in-queue delay seen by most recently
 851                                  * dequeued packet
 852                                  */
 853         __u32   count;
 854         __u32   lastcount;
 855         __u32   dropping;
 856         __s32   drop_next;
 857 };
 858
 859 struct tc_fq_codel_xstats {
 860         __u32   type;
 861         union {
 862                 struct tc_fq_codel_qd_stats qdisc_stats;
 863                 struct tc_fq_codel_cl_stats class_stats;
 864         };
 865 };
 866
 867 /* FQ */
 868
 869 enum {
 870         TCA_FQ_UNSPEC,
 871
 872         TCA_FQ_PLIMIT,          /* limit of total number of packets in queue */
 873
 874         TCA_FQ_FLOW_PLIMIT,     /* limit of packets per flow */
 875
 876         TCA_FQ_QUANTUM,         /* RR quantum */
 877
 878         TCA_FQ_INITIAL_QUANTUM,         /* RR quantum for new flow */
 879
 880         TCA_FQ_RATE_ENABLE,     /* enable/disable rate limiting */
 881
 882         TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
 883
 884         TCA_FQ_FLOW_MAX_RATE,   /* per flow max rate */
 885
 886         TCA_FQ_BUCKETS_LOG,     /* log2(number of buckets) */
 887
 888         TCA_FQ_FLOW_REFILL_DELAY,       /* flow credit refill delay in usec */
 889
 890         TCA_FQ_ORPHAN_MASK,     /* mask applied to orphaned skb hashes */
 891
 892         TCA_FQ_LOW_RATE_THRESHOLD, /* per packet delay under this rate */
 893
 894         TCA_FQ_CE_THRESHOLD,    /* DCTCP-like CE-marking threshold */
 895
 896         __TCA_FQ_MAX
 897 };
 898
 899 #define TCA_FQ_MAX      (__TCA_FQ_MAX - 1)
 900
 901 struct tc_fq_qd_stats {
 902         __u64   gc_flows;
 903         __u64   highprio_packets;
 904         __u64   tcp_retrans;
 905         __u64   throttled;
 906         __u64   flows_plimit;
 907         __u64   pkts_too_long;
 908         __u64   allocation_errors;
 909         __s64   time_next_delayed_flow;
 910         __u32   flows;
 911         __u32   inactive_flows;
 912         __u32   throttled_flows;
 913         __u32   unthrottle_latency_ns;
 914         __u64   ce_mark;                /* packets above ce_threshold */
 915 };
 916
 917 /* Heavy-Hitter Filter */
 918
 919 enum {
 920         TCA_HHF_UNSPEC,
 921         TCA_HHF_BACKLOG_LIMIT,
 922         TCA_HHF_QUANTUM,
 923         TCA_HHF_HH_FLOWS_LIMIT,
 924         TCA_HHF_RESET_TIMEOUT,
 925         TCA_HHF_ADMIT_BYTES,
 926         TCA_HHF_EVICT_TIMEOUT,
 927         TCA_HHF_NON_HH_WEIGHT,
 928         __TCA_HHF_MAX
 929 };
 930
 931 #define TCA_HHF_MAX     (__TCA_HHF_MAX - 1)
 932
 933 struct tc_hhf_xstats {
 934         __u32   drop_overlimit; /* number of times max qdisc packet limit
 935                                  * was hit
 936                                  */
 937         __u32   hh_overlimit;   /* number of times max heavy-hitters was hit */
 938         __u32   hh_tot_count;   /* number of captured heavy-hitters so far */
 939         __u32   hh_cur_count;   /* number of current heavy-hitters */
 940 };
 941
 942 /* PIE */
 943 enum {
 944         TCA_PIE_UNSPEC,
 945         TCA_PIE_TARGET,
 946         TCA_PIE_LIMIT,
 947         TCA_PIE_TUPDATE,
 948         TCA_PIE_ALPHA,
 949         TCA_PIE_BETA,
 950         TCA_PIE_ECN,
 951         TCA_PIE_BYTEMODE,
 952         __TCA_PIE_MAX
 953 };
 954 #define TCA_PIE_MAX   (__TCA_PIE_MAX - 1)
 955
 956 struct tc_pie_xstats {
 957         __u64 prob;             /* current probability */
 958         __u32 delay;            /* current delay in ms */
 959         __u32 avg_dq_rate;      /* current average dq_rate in bits/pie_time */
 960         __u32 packets_in;       /* total number of packets enqueued */
 961         __u32 dropped;          /* packets dropped due to pie_action */
 962         __u32 overlimit;        /* dropped due to lack of space in queue */
 963         __u32 maxq;             /* maximum queue size */
 964         __u32 ecn_mark;         /* packets marked with ecn*/
 965 };
 966
 967 /* CBS */
 968 struct tc_cbs_qopt {
 969         __u8 offload;
 970         __u8 _pad[3];
 971         __s32 hicredit;
 972         __s32 locredit;
 973         __s32 idleslope;
 974         __s32 sendslope;
 975 };
 976
 977 enum {
 978         TCA_CBS_UNSPEC,
 979         TCA_CBS_PARMS,
 980         __TCA_CBS_MAX,
 981 };
 982
 983 #define TCA_CBS_MAX (__TCA_CBS_MAX - 1)
 984
 985
 986 /* ETF */
 987 struct tc_etf_qopt {
 988         __s32 delta;
 989         __s32 clockid;
 990         __u32 flags;
 991 #define TC_ETF_DEADLINE_MODE_ON BIT(0)
 992 #define TC_ETF_OFFLOAD_ON       BIT(1)
 993 };
 994
 995 enum {
 996         TCA_ETF_UNSPEC,
 997         TCA_ETF_PARMS,
 998         __TCA_ETF_MAX,
 999 };
1000
1001 #define TCA_ETF_MAX (__TCA_ETF_MAX - 1)
1002
1003
1004 /* CAKE */
1005 enum {
1006         TCA_CAKE_UNSPEC,
1007         TCA_CAKE_PAD,
1008         TCA_CAKE_BASE_RATE64,
1009         TCA_CAKE_DIFFSERV_MODE,
1010         TCA_CAKE_ATM,
1011         TCA_CAKE_FLOW_MODE,
1012         TCA_CAKE_OVERHEAD,
1013         TCA_CAKE_RTT,
1014         TCA_CAKE_TARGET,
1015         TCA_CAKE_AUTORATE,
1016         TCA_CAKE_MEMORY,
1017         TCA_CAKE_NAT,
1018         TCA_CAKE_RAW,
1019         TCA_CAKE_WASH,
1020         TCA_CAKE_MPU,
1021         TCA_CAKE_INGRESS,
1022         TCA_CAKE_ACK_FILTER,
1023         TCA_CAKE_SPLIT_GSO,
1024         TCA_CAKE_FWMARK,
1025         __TCA_CAKE_MAX
1026 };
1027 #define TCA_CAKE_MAX    (__TCA_CAKE_MAX - 1)
1028
1029 enum {
1030         __TCA_CAKE_STATS_INVALID,
1031         TCA_CAKE_STATS_PAD,
1032         TCA_CAKE_STATS_CAPACITY_ESTIMATE64,
1033         TCA_CAKE_STATS_MEMORY_LIMIT,
1034         TCA_CAKE_STATS_MEMORY_USED,
1035         TCA_CAKE_STATS_AVG_NETOFF,
1036         TCA_CAKE_STATS_MIN_NETLEN,
1037         TCA_CAKE_STATS_MAX_NETLEN,
1038         TCA_CAKE_STATS_MIN_ADJLEN,
1039         TCA_CAKE_STATS_MAX_ADJLEN,
1040         TCA_CAKE_STATS_TIN_STATS,
1041         TCA_CAKE_STATS_DEFICIT,
1042         TCA_CAKE_STATS_COBALT_COUNT,
1043         TCA_CAKE_STATS_DROPPING,
1044         TCA_CAKE_STATS_DROP_NEXT_US,
1045         TCA_CAKE_STATS_P_DROP,
1046         TCA_CAKE_STATS_BLUE_TIMER_US,
1047         __TCA_CAKE_STATS_MAX
1048 };
1049 #define TCA_CAKE_STATS_MAX (__TCA_CAKE_STATS_MAX - 1)
1050
1051 enum {
1052         __TCA_CAKE_TIN_STATS_INVALID,
1053         TCA_CAKE_TIN_STATS_PAD,
1054         TCA_CAKE_TIN_STATS_SENT_PACKETS,
1055         TCA_CAKE_TIN_STATS_SENT_BYTES64,
1056         TCA_CAKE_TIN_STATS_DROPPED_PACKETS,
1057         TCA_CAKE_TIN_STATS_DROPPED_BYTES64,
1058         TCA_CAKE_TIN_STATS_ACKS_DROPPED_PACKETS,
1059         TCA_CAKE_TIN_STATS_ACKS_DROPPED_BYTES64,
1060         TCA_CAKE_TIN_STATS_ECN_MARKED_PACKETS,
1061         TCA_CAKE_TIN_STATS_ECN_MARKED_BYTES64,
1062         TCA_CAKE_TIN_STATS_BACKLOG_PACKETS,
1063         TCA_CAKE_TIN_STATS_BACKLOG_BYTES,
1064         TCA_CAKE_TIN_STATS_THRESHOLD_RATE64,
1065         TCA_CAKE_TIN_STATS_TARGET_US,
1066         TCA_CAKE_TIN_STATS_INTERVAL_US,
1067         TCA_CAKE_TIN_STATS_WAY_INDIRECT_HITS,
1068         TCA_CAKE_TIN_STATS_WAY_MISSES,
1069         TCA_CAKE_TIN_STATS_WAY_COLLISIONS,
1070         TCA_CAKE_TIN_STATS_PEAK_DELAY_US,
1071         TCA_CAKE_TIN_STATS_AVG_DELAY_US,
1072         TCA_CAKE_TIN_STATS_BASE_DELAY_US,
1073         TCA_CAKE_TIN_STATS_SPARSE_FLOWS,
1074         TCA_CAKE_TIN_STATS_BULK_FLOWS,
1075         TCA_CAKE_TIN_STATS_UNRESPONSIVE_FLOWS,
1076         TCA_CAKE_TIN_STATS_MAX_SKBLEN,
1077         TCA_CAKE_TIN_STATS_FLOW_QUANTUM,
1078         __TCA_CAKE_TIN_STATS_MAX
1079 };
1080 #define TCA_CAKE_TIN_STATS_MAX (__TCA_CAKE_TIN_STATS_MAX - 1)
1081 #define TC_CAKE_MAX_TINS (8)
1082
1083 enum {
1084         CAKE_FLOW_NONE = 0,
1085         CAKE_FLOW_SRC_IP,
1086         CAKE_FLOW_DST_IP,
1087         CAKE_FLOW_HOSTS,    /* = CAKE_FLOW_SRC_IP | CAKE_FLOW_DST_IP */
1088         CAKE_FLOW_FLOWS,
1089         CAKE_FLOW_DUAL_SRC, /* = CAKE_FLOW_SRC_IP | CAKE_FLOW_FLOWS */
1090         CAKE_FLOW_DUAL_DST, /* = CAKE_FLOW_DST_IP | CAKE_FLOW_FLOWS */
1091         CAKE_FLOW_TRIPLE,   /* = CAKE_FLOW_HOSTS  | CAKE_FLOW_FLOWS */
1092         CAKE_FLOW_MAX,
1093 };
1094
1095 enum {
1096         CAKE_DIFFSERV_DIFFSERV3 = 0,
1097         CAKE_DIFFSERV_DIFFSERV4,
1098         CAKE_DIFFSERV_DIFFSERV8,
1099         CAKE_DIFFSERV_BESTEFFORT,
1100         CAKE_DIFFSERV_PRECEDENCE,
1101         CAKE_DIFFSERV_MAX
1102 };
1103
1104 enum {
1105         CAKE_ACK_NONE = 0,
1106         CAKE_ACK_FILTER,
1107         CAKE_ACK_AGGRESSIVE,
1108         CAKE_ACK_MAX
1109 };
1110
1111 enum {
1112         CAKE_ATM_NONE = 0,
1113         CAKE_ATM_ATM,
1114         CAKE_ATM_PTM,
1115         CAKE_ATM_MAX
1116 };
1117
1118
1119 /* TAPRIO */
1120 enum {
1121         TC_TAPRIO_CMD_SET_GATES = 0x00,
1122         TC_TAPRIO_CMD_SET_AND_HOLD = 0x01,
1123         TC_TAPRIO_CMD_SET_AND_RELEASE = 0x02,
1124 };
1125
1126 enum {
1127         TCA_TAPRIO_SCHED_ENTRY_UNSPEC,
1128         TCA_TAPRIO_SCHED_ENTRY_INDEX, /* u32 */
1129         TCA_TAPRIO_SCHED_ENTRY_CMD, /* u8 */
1130         TCA_TAPRIO_SCHED_ENTRY_GATE_MASK, /* u32 */
1131         TCA_TAPRIO_SCHED_ENTRY_INTERVAL, /* u32 */
1132         __TCA_TAPRIO_SCHED_ENTRY_MAX,
1133 };
1134 #define TCA_TAPRIO_SCHED_ENTRY_MAX (__TCA_TAPRIO_SCHED_ENTRY_MAX - 1)
1135
1136 /* The format for schedule entry list is:
1137  * [TCA_TAPRIO_SCHED_ENTRY_LIST]
1138  *   [TCA_TAPRIO_SCHED_ENTRY]
1139  *     [TCA_TAPRIO_SCHED_ENTRY_CMD]
1140  *     [TCA_TAPRIO_SCHED_ENTRY_GATES]
1141  *     [TCA_TAPRIO_SCHED_ENTRY_INTERVAL]
1142  */
1143 enum {
1144         TCA_TAPRIO_SCHED_UNSPEC,
1145         TCA_TAPRIO_SCHED_ENTRY,
1146         __TCA_TAPRIO_SCHED_MAX,
1147 };
1148
1149 #define TCA_TAPRIO_SCHED_MAX (__TCA_TAPRIO_SCHED_MAX - 1)
1150
1151 enum {
1152         TCA_TAPRIO_ATTR_UNSPEC,
1153         TCA_TAPRIO_ATTR_PRIOMAP, /* struct tc_mqprio_qopt */
1154         TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST, /* nested of entry */
1155         TCA_TAPRIO_ATTR_SCHED_BASE_TIME, /* s64 */
1156         TCA_TAPRIO_ATTR_SCHED_SINGLE_ENTRY, /* single entry */
1157         TCA_TAPRIO_ATTR_SCHED_CLOCKID, /* s32 */
1158         TCA_TAPRIO_PAD,
1159         __TCA_TAPRIO_ATTR_MAX,
1160 };
1161
1162 #define TCA_TAPRIO_ATTR_MAX (__TCA_TAPRIO_ATTR_MAX - 1)
1163
1164 #endif