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