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 /* PRIO section */
 128
 129 #define TCQ_PRIO_BANDS  16
 130 #define TCQ_MIN_PRIO_BANDS 2
 131
 132 struct tc_prio_qopt {
 133         int     bands;                  /* Number of bands */
 134         __u8    priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
 135 };
 136
 137 /* MULTIQ section */
 138
 139 struct tc_multiq_qopt {
 140         __u16   bands;                  /* Number of bands */
 141         __u16   max_bands;              /* Maximum number of queues */
 142 };
 143
 144 /* PLUG section */
 145
 146 #define TCQ_PLUG_BUFFER                0
 147 #define TCQ_PLUG_RELEASE_ONE           1
 148 #define TCQ_PLUG_RELEASE_INDEFINITE    2
 149 #define TCQ_PLUG_LIMIT                 3
 150
 151 struct tc_plug_qopt {
 152         /* TCQ_PLUG_BUFFER: Inset a plug into the queue and
 153          *  buffer any incoming packets
 154          * TCQ_PLUG_RELEASE_ONE: Dequeue packets from queue head
 155          *   to beginning of the next plug.
 156          * TCQ_PLUG_RELEASE_INDEFINITE: Dequeue all packets from queue.
 157          *   Stop buffering packets until the next TCQ_PLUG_BUFFER
 158          *   command is received (just act as a pass-thru queue).
 159          * TCQ_PLUG_LIMIT: Increase/decrease queue size
 160          */
 161         int             action;
 162         __u32           limit;
 163 };
 164
 165 /* TBF section */
 166
 167 struct tc_tbf_qopt {
 168         struct tc_ratespec rate;
 169         struct tc_ratespec peakrate;
 170         __u32           limit;
 171         __u32           buffer;
 172         __u32           mtu;
 173 };
 174
 175 enum {
 176         TCA_TBF_UNSPEC,
 177         TCA_TBF_PARMS,
 178         TCA_TBF_RTAB,
 179         TCA_TBF_PTAB,
 180         TCA_TBF_RATE64,
 181         TCA_TBF_PRATE64,
 182         TCA_TBF_BURST,
 183         TCA_TBF_PBURST,
 184         TCA_TBF_PAD,
 185         __TCA_TBF_MAX,
 186 };
 187
 188 #define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
 189
 190
 191 /* TEQL section */
 192
 193 /* TEQL does not require any parameters */
 194
 195 /* SFQ section */
 196
 197 struct tc_sfq_qopt {
 198         unsigned        quantum;        /* Bytes per round allocated to flow */
 199         int             perturb_period; /* Period of hash perturbation */
 200         __u32           limit;          /* Maximal packets in queue */
 201         unsigned        divisor;        /* Hash divisor  */
 202         unsigned        flows;          /* Maximal number of flows  */
 203 };
 204
 205 struct tc_sfqred_stats {
 206         __u32           prob_drop;      /* Early drops, below max threshold */
 207         __u32           forced_drop;    /* Early drops, after max threshold */
 208         __u32           prob_mark;      /* Marked packets, below max threshold */
 209         __u32           forced_mark;    /* Marked packets, after max threshold */
 210         __u32           prob_mark_head; /* Marked packets, below max threshold */
 211         __u32           forced_mark_head;/* Marked packets, after max threshold */
 212 };
 213
 214 struct tc_sfq_qopt_v1 {
 215         struct tc_sfq_qopt v0;
 216         unsigned int    depth;          /* max number of packets per flow */
 217         unsigned int    headdrop;
 218 /* SFQRED parameters */
 219         __u32           limit;          /* HARD maximal flow queue length (bytes) */
 220         __u32           qth_min;        /* Min average length threshold (bytes) */
 221         __u32           qth_max;        /* Max average length threshold (bytes) */
 222         unsigned char   Wlog;           /* log(W)               */
 223         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 224         unsigned char   Scell_log;      /* cell size for idle damping */
 225         unsigned char   flags;
 226         __u32           max_P;          /* probability, high resolution */
 227 /* SFQRED stats */
 228         struct tc_sfqred_stats stats;
 229 };
 230
 231
 232 struct tc_sfq_xstats {
 233         __s32           allot;
 234 };
 235
 236 /* RED section */
 237
 238 enum {
 239         TCA_RED_UNSPEC,
 240         TCA_RED_PARMS,
 241         TCA_RED_STAB,
 242         TCA_RED_MAX_P,
 243         __TCA_RED_MAX,
 244 };
 245
 246 #define TCA_RED_MAX (__TCA_RED_MAX - 1)
 247
 248 struct tc_red_qopt {
 249         __u32           limit;          /* HARD maximal queue length (bytes)    */
 250         __u32           qth_min;        /* Min average length threshold (bytes) */
 251         __u32           qth_max;        /* Max average length threshold (bytes) */
 252         unsigned char   Wlog;           /* log(W)               */
 253         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 254         unsigned char   Scell_log;      /* cell size for idle damping */
 255         unsigned char   flags;
 256 #define TC_RED_ECN              1
 257 #define TC_RED_HARDDROP         2
 258 #define TC_RED_ADAPTATIVE       4
 259 #define TC_RED_OFFLOADED        8
 260 };
 261
 262 struct tc_red_xstats {
 263         __u32           early;          /* Early drops */
 264         __u32           pdrop;          /* Drops due to queue limits */
 265         __u32           other;          /* Drops due to drop() calls */
 266         __u32           marked;         /* Marked packets */
 267 };
 268
 269 /* GRED section */
 270
 271 #define MAX_DPs 16
 272
 273 enum {
 274        TCA_GRED_UNSPEC,
 275        TCA_GRED_PARMS,
 276        TCA_GRED_STAB,
 277        TCA_GRED_DPS,
 278        TCA_GRED_MAX_P,
 279        TCA_GRED_LIMIT,
 280        __TCA_GRED_MAX,
 281 };
 282
 283 #define TCA_GRED_MAX (__TCA_GRED_MAX - 1)
 284
 285 struct tc_gred_qopt {
 286         __u32           limit;        /* HARD maximal queue length (bytes)    */
 287         __u32           qth_min;      /* Min average length threshold (bytes) */
 288         __u32           qth_max;      /* Max average length threshold (bytes) */
 289         __u32           DP;           /* up to 2^32 DPs */
 290         __u32           backlog;
 291         __u32           qave;
 292         __u32           forced;
 293         __u32           early;
 294         __u32           other;
 295         __u32           pdrop;
 296         __u8            Wlog;         /* log(W)               */
 297         __u8            Plog;         /* log(P_max/(qth_max-qth_min)) */
 298         __u8            Scell_log;    /* cell size for idle damping */
 299         __u8            prio;         /* prio of this VQ */
 300         __u32           packets;
 301         __u32           bytesin;
 302 };
 303
 304 /* gred setup */
 305 struct tc_gred_sopt {
 306         __u32           DPs;
 307         __u32           def_DP;
 308         __u8            grio;
 309         __u8            flags;
 310         __u16           pad1;
 311 };
 312
 313 /* CHOKe section */
 314
 315 enum {
 316         TCA_CHOKE_UNSPEC,
 317         TCA_CHOKE_PARMS,
 318         TCA_CHOKE_STAB,
 319         TCA_CHOKE_MAX_P,
 320         __TCA_CHOKE_MAX,
 321 };
 322
 323 #define TCA_CHOKE_MAX (__TCA_CHOKE_MAX - 1)
 324
 325 struct tc_choke_qopt {
 326         __u32           limit;          /* Hard queue length (packets)  */
 327         __u32           qth_min;        /* Min average threshold (packets) */
 328         __u32           qth_max;        /* Max average threshold (packets) */
 329         unsigned char   Wlog;           /* log(W)               */
 330         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 331         unsigned char   Scell_log;      /* cell size for idle damping */
 332         unsigned char   flags;          /* see RED flags */
 333 };
 334
 335 struct tc_choke_xstats {
 336         __u32           early;          /* Early drops */
 337         __u32           pdrop;          /* Drops due to queue limits */
 338         __u32           other;          /* Drops due to drop() calls */
 339         __u32           marked;         /* Marked packets */
 340         __u32           matched;        /* Drops due to flow match */
 341 };
 342
 343 /* HTB section */
 344 #define TC_HTB_NUMPRIO          8
 345 #define TC_HTB_MAXDEPTH         8
 346 #define TC_HTB_PROTOVER         3 /* the same as HTB and TC's major */
 347
 348 struct tc_htb_opt {
 349         struct tc_ratespec      rate;
 350         struct tc_ratespec      ceil;
 351         __u32   buffer;
 352         __u32   cbuffer;
 353         __u32   quantum;
 354         __u32   level;          /* out only */
 355         __u32   prio;
 356 };
 357 struct tc_htb_glob {
 358         __u32 version;          /* to match HTB/TC */
 359         __u32 rate2quantum;     /* bps->quantum divisor */
 360         __u32 defcls;           /* default class number */
 361         __u32 debug;            /* debug flags */
 362
 363         /* stats */
 364         __u32 direct_pkts; /* count of non shaped packets */
 365 };
 366 enum {
 367         TCA_HTB_UNSPEC,
 368         TCA_HTB_PARMS,
 369         TCA_HTB_INIT,
 370         TCA_HTB_CTAB,
 371         TCA_HTB_RTAB,
 372         TCA_HTB_DIRECT_QLEN,
 373         TCA_HTB_RATE64,
 374         TCA_HTB_CEIL64,
 375         TCA_HTB_PAD,
 376         __TCA_HTB_MAX,
 377 };
 378
 379 #define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
 380
 381 struct tc_htb_xstats {
 382         __u32 lends;
 383         __u32 borrows;
 384         __u32 giants;   /* too big packets (rate will not be accurate) */
 385         __u32 tokens;
 386         __u32 ctokens;
 387 };
 388
 389 /* HFSC section */
 390
 391 struct tc_hfsc_qopt {
 392         __u16   defcls;         /* default class */
 393 };
 394
 395 struct tc_service_curve {
 396         __u32   m1;             /* slope of the first segment in bps */
 397         __u32   d;              /* x-projection of the first segment in us */
 398         __u32   m2;             /* slope of the second segment in bps */
 399 };
 400
 401 struct tc_hfsc_stats {
 402         __u64   work;           /* total work done */
 403         __u64   rtwork;         /* work done by real-time criteria */
 404         __u32   period;         /* current period */
 405         __u32   level;          /* class level in hierarchy */
 406 };
 407
 408 enum {
 409         TCA_HFSC_UNSPEC,
 410         TCA_HFSC_RSC,
 411         TCA_HFSC_FSC,
 412         TCA_HFSC_USC,
 413         __TCA_HFSC_MAX,
 414 };
 415
 416 #define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)
 417
 418
 419 /* CBQ section */
 420
 421 #define TC_CBQ_MAXPRIO          8
 422 #define TC_CBQ_MAXLEVEL         8
 423 #define TC_CBQ_DEF_EWMA         5
 424
 425 struct tc_cbq_lssopt {
 426         unsigned char   change;
 427         unsigned char   flags;
 428 #define TCF_CBQ_LSS_BOUNDED     1
 429 #define TCF_CBQ_LSS_ISOLATED    2
 430         unsigned char   ewma_log;
 431         unsigned char   level;
 432 #define TCF_CBQ_LSS_FLAGS       1
 433 #define TCF_CBQ_LSS_EWMA        2
 434 #define TCF_CBQ_LSS_MAXIDLE     4
 435 #define TCF_CBQ_LSS_MINIDLE     8
 436 #define TCF_CBQ_LSS_OFFTIME     0x10
 437 #define TCF_CBQ_LSS_AVPKT       0x20
 438         __u32           maxidle;
 439         __u32           minidle;
 440         __u32           offtime;
 441         __u32           avpkt;
 442 };
 443
 444 struct tc_cbq_wrropt {
 445         unsigned char   flags;
 446         unsigned char   priority;
 447         unsigned char   cpriority;
 448         unsigned char   __reserved;
 449         __u32           allot;
 450         __u32           weight;
 451 };
 452
 453 struct tc_cbq_ovl {
 454         unsigned char   strategy;
 455 #define TC_CBQ_OVL_CLASSIC      0
 456 #define TC_CBQ_OVL_DELAY        1
 457 #define TC_CBQ_OVL_LOWPRIO      2
 458 #define TC_CBQ_OVL_DROP         3
 459 #define TC_CBQ_OVL_RCLASSIC     4
 460         unsigned char   priority2;
 461         __u16           pad;
 462         __u32           penalty;
 463 };
 464
 465 struct tc_cbq_police {
 466         unsigned char   police;
 467         unsigned char   __res1;
 468         unsigned short  __res2;
 469 };
 470
 471 struct tc_cbq_fopt {
 472         __u32           split;
 473         __u32           defmap;
 474         __u32           defchange;
 475 };
 476
 477 struct tc_cbq_xstats {
 478         __u32           borrows;
 479         __u32           overactions;
 480         __s32           avgidle;
 481         __s32           undertime;
 482 };
 483
 484 enum {
 485         TCA_CBQ_UNSPEC,
 486         TCA_CBQ_LSSOPT,
 487         TCA_CBQ_WRROPT,
 488         TCA_CBQ_FOPT,
 489         TCA_CBQ_OVL_STRATEGY,
 490         TCA_CBQ_RATE,
 491         TCA_CBQ_RTAB,
 492         TCA_CBQ_POLICE,
 493         __TCA_CBQ_MAX,
 494 };
 495
 496 #define TCA_CBQ_MAX     (__TCA_CBQ_MAX - 1)
 497
 498 /* dsmark section */
 499
 500 enum {
 501         TCA_DSMARK_UNSPEC,
 502         TCA_DSMARK_INDICES,
 503         TCA_DSMARK_DEFAULT_INDEX,
 504         TCA_DSMARK_SET_TC_INDEX,
 505         TCA_DSMARK_MASK,
 506         TCA_DSMARK_VALUE,
 507         __TCA_DSMARK_MAX,
 508 };
 509
 510 #define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)
 511
 512 /* ATM  section */
 513
 514 enum {
 515         TCA_ATM_UNSPEC,
 516         TCA_ATM_FD,             /* file/socket descriptor */
 517         TCA_ATM_PTR,            /* pointer to descriptor - later */
 518         TCA_ATM_HDR,            /* LL header */
 519         TCA_ATM_EXCESS,         /* excess traffic class (0 for CLP)  */
 520         TCA_ATM_ADDR,           /* PVC address (for output only) */
 521         TCA_ATM_STATE,          /* VC state (ATM_VS_*; for output only) */
 522         __TCA_ATM_MAX,
 523 };
 524
 525 #define TCA_ATM_MAX     (__TCA_ATM_MAX - 1)
 526
 527 /* Network emulator */
 528
 529 enum {
 530         TCA_NETEM_UNSPEC,
 531         TCA_NETEM_CORR,
 532         TCA_NETEM_DELAY_DIST,
 533         TCA_NETEM_REORDER,
 534         TCA_NETEM_CORRUPT,
 535         TCA_NETEM_LOSS,
 536         TCA_NETEM_RATE,
 537         TCA_NETEM_ECN,
 538         TCA_NETEM_RATE64,
 539         TCA_NETEM_PAD,
 540         TCA_NETEM_LATENCY64,
 541         TCA_NETEM_JITTER64,
 542         TCA_NETEM_SLOT,
 543         __TCA_NETEM_MAX,
 544 };
 545
 546 #define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)
 547
 548 struct tc_netem_qopt {
 549         __u32   latency;        /* added delay (us) */
 550         __u32   limit;          /* fifo limit (packets) */
 551         __u32   loss;           /* random packet loss (0=none ~0=100%) */
 552         __u32   gap;            /* re-ordering gap (0 for none) */
 553         __u32   duplicate;      /* random packet dup  (0=none ~0=100%) */
 554         __u32   jitter;         /* random jitter in latency (us) */
 555 };
 556
 557 struct tc_netem_corr {
 558         __u32   delay_corr;     /* delay correlation */
 559         __u32   loss_corr;      /* packet loss correlation */
 560         __u32   dup_corr;       /* duplicate correlation  */
 561 };
 562
 563 struct tc_netem_reorder {
 564         __u32   probability;
 565         __u32   correlation;
 566 };
 567
 568 struct tc_netem_corrupt {
 569         __u32   probability;
 570         __u32   correlation;
 571 };
 572
 573 struct tc_netem_rate {
 574         __u32   rate;   /* byte/s */
 575         __s32   packet_overhead;
 576         __u32   cell_size;
 577         __s32   cell_overhead;
 578 };
 579
 580 struct tc_netem_slot {
 581         __s64   min_delay; /* nsec */
 582         __s64   max_delay;
 583         __s32   max_packets;
 584         __s32   max_bytes;
 585 };
 586
 587 enum {
 588         NETEM_LOSS_UNSPEC,
 589         NETEM_LOSS_GI,          /* General Intuitive - 4 state model */
 590         NETEM_LOSS_GE,          /* Gilbert Elliot models */
 591         __NETEM_LOSS_MAX
 592 };
 593 #define NETEM_LOSS_MAX (__NETEM_LOSS_MAX - 1)
 594
 595 /* State transition probabilities for 4 state model */
 596 struct tc_netem_gimodel {
 597         __u32   p13;
 598         __u32   p31;
 599         __u32   p32;
 600         __u32   p14;
 601         __u32   p23;
 602 };
 603
 604 /* Gilbert-Elliot models */
 605 struct tc_netem_gemodel {
 606         __u32 p;
 607         __u32 r;
 608         __u32 h;
 609         __u32 k1;
 610 };
 611
 612 #define NETEM_DIST_SCALE        8192
 613 #define NETEM_DIST_MAX          16384
 614
 615 /* DRR */
 616
 617 enum {
 618         TCA_DRR_UNSPEC,
 619         TCA_DRR_QUANTUM,
 620         __TCA_DRR_MAX
 621 };
 622
 623 #define TCA_DRR_MAX     (__TCA_DRR_MAX - 1)
 624
 625 struct tc_drr_stats {
 626         __u32   deficit;
 627 };
 628
 629 /* MQPRIO */
 630 #define TC_QOPT_BITMASK 15
 631 #define TC_QOPT_MAX_QUEUE 16
 632
 633 enum {
 634         TC_MQPRIO_HW_OFFLOAD_NONE,      /* no offload requested */
 635         TC_MQPRIO_HW_OFFLOAD_TCS,       /* offload TCs, no queue counts */
 636         __TC_MQPRIO_HW_OFFLOAD_MAX
 637 };
 638
 639 #define TC_MQPRIO_HW_OFFLOAD_MAX (__TC_MQPRIO_HW_OFFLOAD_MAX - 1)
 640
 641 enum {
 642         TC_MQPRIO_MODE_DCB,
 643         TC_MQPRIO_MODE_CHANNEL,
 644         __TC_MQPRIO_MODE_MAX
 645 };
 646
 647 #define __TC_MQPRIO_MODE_MAX (__TC_MQPRIO_MODE_MAX - 1)
 648
 649 enum {
 650         TC_MQPRIO_SHAPER_DCB,
 651         TC_MQPRIO_SHAPER_BW_RATE,       /* Add new shapers below */
 652         __TC_MQPRIO_SHAPER_MAX
 653 };
 654
 655 #define __TC_MQPRIO_SHAPER_MAX (__TC_MQPRIO_SHAPER_MAX - 1)
 656
 657 struct tc_mqprio_qopt {
 658         __u8    num_tc;
 659         __u8    prio_tc_map[TC_QOPT_BITMASK + 1];
 660         __u8    hw;
 661         __u16   count[TC_QOPT_MAX_QUEUE];
 662         __u16   offset[TC_QOPT_MAX_QUEUE];
 663 };
 664
 665 #define TC_MQPRIO_F_MODE                0x1
 666 #define TC_MQPRIO_F_SHAPER              0x2
 667 #define TC_MQPRIO_F_MIN_RATE            0x4
 668 #define TC_MQPRIO_F_MAX_RATE            0x8
 669
 670 enum {
 671         TCA_MQPRIO_UNSPEC,
 672         TCA_MQPRIO_MODE,
 673         TCA_MQPRIO_SHAPER,
 674         TCA_MQPRIO_MIN_RATE64,
 675         TCA_MQPRIO_MAX_RATE64,
 676         __TCA_MQPRIO_MAX,
 677 };
 678
 679 #define TCA_MQPRIO_MAX (__TCA_MQPRIO_MAX - 1)
 680
 681 /* SFB */
 682
 683 enum {
 684         TCA_SFB_UNSPEC,
 685         TCA_SFB_PARMS,
 686         __TCA_SFB_MAX,
 687 };
 688
 689 #define TCA_SFB_MAX (__TCA_SFB_MAX - 1)
 690
 691 /*
 692  * Note: increment, decrement are Q0.16 fixed-point values.
 693  */
 694 struct tc_sfb_qopt {
 695         __u32 rehash_interval;  /* delay between hash move, in ms */
 696         __u32 warmup_time;      /* double buffering warmup time in ms (warmup_time < rehash_interval) */
 697         __u32 max;              /* max len of qlen_min */
 698         __u32 bin_size;         /* maximum queue length per bin */
 699         __u32 increment;        /* probability increment, (d1 in Blue) */
 700         __u32 decrement;        /* probability decrement, (d2 in Blue) */
 701         __u32 limit;            /* max SFB queue length */
 702         __u32 penalty_rate;     /* inelastic flows are rate limited to 'rate' pps */
 703         __u32 penalty_burst;
 704 };
 705
 706 struct tc_sfb_xstats {
 707         __u32 earlydrop;
 708         __u32 penaltydrop;
 709         __u32 bucketdrop;
 710         __u32 queuedrop;
 711         __u32 childdrop; /* drops in child qdisc */
 712         __u32 marked;
 713         __u32 maxqlen;
 714         __u32 maxprob;
 715         __u32 avgprob;
 716 };
 717
 718 #define SFB_MAX_PROB 0xFFFF
 719
 720 /* QFQ */
 721 enum {
 722         TCA_QFQ_UNSPEC,
 723         TCA_QFQ_WEIGHT,
 724         TCA_QFQ_LMAX,
 725         __TCA_QFQ_MAX
 726 };
 727
 728 #define TCA_QFQ_MAX     (__TCA_QFQ_MAX - 1)
 729
 730 struct tc_qfq_stats {
 731         __u32 weight;
 732         __u32 lmax;
 733 };
 734
 735 /* CODEL */
 736
 737 enum {
 738         TCA_CODEL_UNSPEC,
 739         TCA_CODEL_TARGET,
 740         TCA_CODEL_LIMIT,
 741         TCA_CODEL_INTERVAL,
 742         TCA_CODEL_ECN,
 743         TCA_CODEL_CE_THRESHOLD,
 744         __TCA_CODEL_MAX
 745 };
 746
 747 #define TCA_CODEL_MAX   (__TCA_CODEL_MAX - 1)
 748
 749 struct tc_codel_xstats {
 750         __u32   maxpacket; /* largest packet we've seen so far */
 751         __u32   count;     /* how many drops we've done since the last time we
 752                             * entered dropping state
 753                             */
 754         __u32   lastcount; /* count at entry to dropping state */
 755         __u32   ldelay;    /* in-queue delay seen by most recently dequeued packet */
 756         __s32   drop_next; /* time to drop next packet */
 757         __u32   drop_overlimit; /* number of time max qdisc packet limit was hit */
 758         __u32   ecn_mark;  /* number of packets we ECN marked instead of dropped */
 759         __u32   dropping;  /* are we in dropping state ? */
 760         __u32   ce_mark;   /* number of CE marked packets because of ce_threshold */
 761 };
 762
 763 /* FQ_CODEL */
 764
 765 enum {
 766         TCA_FQ_CODEL_UNSPEC,
 767         TCA_FQ_CODEL_TARGET,
 768         TCA_FQ_CODEL_LIMIT,
 769         TCA_FQ_CODEL_INTERVAL,
 770         TCA_FQ_CODEL_ECN,
 771         TCA_FQ_CODEL_FLOWS,
 772         TCA_FQ_CODEL_QUANTUM,
 773         TCA_FQ_CODEL_CE_THRESHOLD,
 774         TCA_FQ_CODEL_DROP_BATCH_SIZE,
 775         TCA_FQ_CODEL_MEMORY_LIMIT,
 776         __TCA_FQ_CODEL_MAX
 777 };
 778
 779 #define TCA_FQ_CODEL_MAX        (__TCA_FQ_CODEL_MAX - 1)
 780
 781 enum {
 782         TCA_FQ_CODEL_XSTATS_QDISC,
 783         TCA_FQ_CODEL_XSTATS_CLASS,
 784 };
 785
 786 struct tc_fq_codel_qd_stats {
 787         __u32   maxpacket;      /* largest packet we've seen so far */
 788         __u32   drop_overlimit; /* number of time max qdisc
 789                                  * packet limit was hit
 790                                  */
 791         __u32   ecn_mark;       /* number of packets we ECN marked
 792                                  * instead of being dropped
 793                                  */
 794         __u32   new_flow_count; /* number of time packets
 795                                  * created a 'new flow'
 796                                  */
 797         __u32   new_flows_len;  /* count of flows in new list */
 798         __u32   old_flows_len;  /* count of flows in old list */
 799         __u32   ce_mark;        /* packets above ce_threshold */
 800         __u32   memory_usage;   /* in bytes */
 801         __u32   drop_overmemory;
 802 };
 803
 804 struct tc_fq_codel_cl_stats {
 805         __s32   deficit;
 806         __u32   ldelay;         /* in-queue delay seen by most recently
 807                                  * dequeued packet
 808                                  */
 809         __u32   count;
 810         __u32   lastcount;
 811         __u32   dropping;
 812         __s32   drop_next;
 813 };
 814
 815 struct tc_fq_codel_xstats {
 816         __u32   type;
 817         union {
 818                 struct tc_fq_codel_qd_stats qdisc_stats;
 819                 struct tc_fq_codel_cl_stats class_stats;
 820         };
 821 };
 822
 823 /* FQ */
 824
 825 enum {
 826         TCA_FQ_UNSPEC,
 827
 828         TCA_FQ_PLIMIT,          /* limit of total number of packets in queue */
 829
 830         TCA_FQ_FLOW_PLIMIT,     /* limit of packets per flow */
 831
 832         TCA_FQ_QUANTUM,         /* RR quantum */
 833
 834         TCA_FQ_INITIAL_QUANTUM,         /* RR quantum for new flow */
 835
 836         TCA_FQ_RATE_ENABLE,     /* enable/disable rate limiting */
 837
 838         TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
 839
 840         TCA_FQ_FLOW_MAX_RATE,   /* per flow max rate */
 841
 842         TCA_FQ_BUCKETS_LOG,     /* log2(number of buckets) */
 843
 844         TCA_FQ_FLOW_REFILL_DELAY,       /* flow credit refill delay in usec */
 845
 846         TCA_FQ_ORPHAN_MASK,     /* mask applied to orphaned skb hashes */
 847
 848         TCA_FQ_LOW_RATE_THRESHOLD, /* per packet delay under this rate */
 849
 850         __TCA_FQ_MAX
 851 };
 852
 853 #define TCA_FQ_MAX      (__TCA_FQ_MAX - 1)
 854
 855 struct tc_fq_qd_stats {
 856         __u64   gc_flows;
 857         __u64   highprio_packets;
 858         __u64   tcp_retrans;
 859         __u64   throttled;
 860         __u64   flows_plimit;
 861         __u64   pkts_too_long;
 862         __u64   allocation_errors;
 863         __s64   time_next_delayed_flow;
 864         __u32   flows;
 865         __u32   inactive_flows;
 866         __u32   throttled_flows;
 867         __u32   unthrottle_latency_ns;
 868 };
 869
 870 /* Heavy-Hitter Filter */
 871
 872 enum {
 873         TCA_HHF_UNSPEC,
 874         TCA_HHF_BACKLOG_LIMIT,
 875         TCA_HHF_QUANTUM,
 876         TCA_HHF_HH_FLOWS_LIMIT,
 877         TCA_HHF_RESET_TIMEOUT,
 878         TCA_HHF_ADMIT_BYTES,
 879         TCA_HHF_EVICT_TIMEOUT,
 880         TCA_HHF_NON_HH_WEIGHT,
 881         __TCA_HHF_MAX
 882 };
 883
 884 #define TCA_HHF_MAX     (__TCA_HHF_MAX - 1)
 885
 886 struct tc_hhf_xstats {
 887         __u32   drop_overlimit; /* number of times max qdisc packet limit
 888                                  * was hit
 889                                  */
 890         __u32   hh_overlimit;   /* number of times max heavy-hitters was hit */
 891         __u32   hh_tot_count;   /* number of captured heavy-hitters so far */
 892         __u32   hh_cur_count;   /* number of current heavy-hitters */
 893 };
 894
 895 /* PIE */
 896 enum {
 897         TCA_PIE_UNSPEC,
 898         TCA_PIE_TARGET,
 899         TCA_PIE_LIMIT,
 900         TCA_PIE_TUPDATE,
 901         TCA_PIE_ALPHA,
 902         TCA_PIE_BETA,
 903         TCA_PIE_ECN,
 904         TCA_PIE_BYTEMODE,
 905         __TCA_PIE_MAX
 906 };
 907 #define TCA_PIE_MAX   (__TCA_PIE_MAX - 1)
 908
 909 struct tc_pie_xstats {
 910         __u32 prob;             /* current probability */
 911         __u32 delay;            /* current delay in ms */
 912         __u32 avg_dq_rate;      /* current average dq_rate in bits/pie_time */
 913         __u32 packets_in;       /* total number of packets enqueued */
 914         __u32 dropped;          /* packets dropped due to pie_action */
 915         __u32 overlimit;        /* dropped due to lack of space in queue */
 916         __u32 maxq;             /* maximum queue size */
 917         __u32 ecn_mark;         /* packets marked with ecn*/
 918 };
 919
 920 /* CBS */
 921 struct tc_cbs_qopt {
 922         __u8 offload;
 923         __u8 _pad[3];
 924         __s32 hicredit;
 925         __s32 locredit;
 926         __s32 idleslope;
 927         __s32 sendslope;
 928 };
 929
 930 enum {
 931         TCA_CBS_UNSPEC,
 932         TCA_CBS_PARMS,
 933         __TCA_CBS_MAX,
 934 };
 935
 936 #define TCA_CBS_MAX (__TCA_CBS_MAX - 1)
 937
 938 #endif