include/uapi/linux/pkt_sched.h

   1 #ifndef __LINUX_PKT_SCHED_H
   2 #define __LINUX_PKT_SCHED_H
   3
   4 #include <linux/types.h>
   5
   6 /* Logical priority bands not depending on specific packet scheduler.
   7    Every scheduler will map them to real traffic classes, if it has
   8    no more precise mechanism to classify packets.
   9
  10    These numbers have no special meaning, though their coincidence
  11    with obsolete IPv6 values is not occasional :-). New IPv6 drafts
  12    preferred full anarchy inspired by diffserv group.
  13
  14    Note: TC_PRIO_BESTEFFORT does not mean that it is the most unhappy
  15    class, actually, as rule it will be handled with more care than
  16    filler or even bulk.
  17  */
  18
  19 #define TC_PRIO_BESTEFFORT              0
  20 #define TC_PRIO_FILLER                  1
  21 #define TC_PRIO_BULK                    2
  22 #define TC_PRIO_INTERACTIVE_BULK        4
  23 #define TC_PRIO_INTERACTIVE             6
  24 #define TC_PRIO_CONTROL                 7
  25
  26 #define TC_PRIO_MAX                     15
  27
  28 /* Generic queue statistics, available for all the elements.
  29    Particular schedulers may have also their private records.
  30  */
  31
  32 struct tc_stats {
  33         __u64   bytes;                  /* Number of enqueued bytes */
  34         __u32   packets;                /* Number of enqueued packets   */
  35         __u32   drops;                  /* Packets dropped because of lack of resources */
  36         __u32   overlimits;             /* Number of throttle events when this
  37                                          * flow goes out of allocated bandwidth */
  38         __u32   bps;                    /* Current flow byte rate */
  39         __u32   pps;                    /* Current flow packet rate */
  40         __u32   qlen;
  41         __u32   backlog;
  42 };
  43
  44 struct tc_estimator {
  45         signed char     interval;
  46         unsigned char   ewma_log;
  47 };
  48
  49 /* "Handles"
  50    ---------
  51
  52     All the traffic control objects have 32bit identifiers, or "handles".
  53
  54     They can be considered as opaque numbers from user API viewpoint,
  55     but actually they always consist of two fields: major and
  56     minor numbers, which are interpreted by kernel specially,
  57     that may be used by applications, though not recommended.
  58
  59     F.e. qdisc handles always have minor number equal to zero,
  60     classes (or flows) have major equal to parent qdisc major, and
  61     minor uniquely identifying class inside qdisc.
  62
  63     Macros to manipulate handles:
  64  */
  65
  66 #define TC_H_MAJ_MASK (0xFFFF0000U)
  67 #define TC_H_MIN_MASK (0x0000FFFFU)
  68 #define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
  69 #define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
  70 #define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
  71
  72 #define TC_H_UNSPEC     (0U)
  73 #define TC_H_ROOT       (0xFFFFFFFFU)
  74 #define TC_H_INGRESS    (0xFFFFFFF1U)
  75 #define TC_H_CLSACT     TC_H_INGRESS
  76
  77 #define TC_H_MIN_INGRESS        0xFFF2U
  78 #define TC_H_MIN_EGRESS         0xFFF3U
  79
  80 /* Need to corrospond to iproute2 tc/tc_core.h "enum link_layer" */
  81 enum tc_link_layer {
  82         TC_LINKLAYER_UNAWARE, /* Indicate unaware old iproute2 util */
  83         TC_LINKLAYER_ETHERNET,
  84         TC_LINKLAYER_ATM,
  85 };
  86 #define TC_LINKLAYER_MASK 0x0F /* limit use to lower 4 bits */
  87
  88 struct tc_ratespec {
  89         unsigned char   cell_log;
  90         __u8            linklayer; /* lower 4 bits */
  91         unsigned short  overhead;
  92         short           cell_align;
  93         unsigned short  mpu;
  94         __u32           rate;
  95 };
  96
  97 #define TC_RTAB_SIZE    1024
  98
  99 struct tc_sizespec {
 100         unsigned char   cell_log;
 101         unsigned char   size_log;
 102         short           cell_align;
 103         int             overhead;
 104         unsigned int    linklayer;
 105         unsigned int    mpu;
 106         unsigned int    mtu;
 107         unsigned int    tsize;
 108 };
 109
 110 enum {
 111         TCA_STAB_UNSPEC,
 112         TCA_STAB_BASE,
 113         TCA_STAB_DATA,
 114         __TCA_STAB_MAX
 115 };
 116
 117 #define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
 118
 119 /* FIFO section */
 120
 121 struct tc_fifo_qopt {
 122         __u32   limit;  /* Queue length: bytes for bfifo, packets for pfifo */
 123 };
 124
 125 /* PRIO section */
 126
 127 #define TCQ_PRIO_BANDS  16
 128 #define TCQ_MIN_PRIO_BANDS 2
 129
 130 struct tc_prio_qopt {
 131         int     bands;                  /* Number of bands */
 132         __u8    priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
 133 };
 134
 135 /* MULTIQ section */
 136
 137 struct tc_multiq_qopt {
 138         __u16   bands;                  /* Number of bands */
 139         __u16   max_bands;              /* Maximum number of queues */
 140 };
 141
 142 /* PLUG section */
 143
 144 #define TCQ_PLUG_BUFFER                0
 145 #define TCQ_PLUG_RELEASE_ONE           1
 146 #define TCQ_PLUG_RELEASE_INDEFINITE    2
 147 #define TCQ_PLUG_LIMIT                 3
 148
 149 struct tc_plug_qopt {
 150         /* TCQ_PLUG_BUFFER: Inset a plug into the queue and
 151          *  buffer any incoming packets
 152          * TCQ_PLUG_RELEASE_ONE: Dequeue packets from queue head
 153          *   to beginning of the next plug.
 154          * TCQ_PLUG_RELEASE_INDEFINITE: Dequeue all packets from queue.
 155          *   Stop buffering packets until the next TCQ_PLUG_BUFFER
 156          *   command is received (just act as a pass-thru queue).
 157          * TCQ_PLUG_LIMIT: Increase/decrease queue size
 158          */
 159         int             action;
 160         __u32           limit;
 161 };
 162
 163 /* TBF section */
 164
 165 struct tc_tbf_qopt {
 166         struct tc_ratespec rate;
 167         struct tc_ratespec peakrate;
 168         __u32           limit;
 169         __u32           buffer;
 170         __u32           mtu;
 171 };
 172
 173 enum {
 174         TCA_TBF_UNSPEC,
 175         TCA_TBF_PARMS,
 176         TCA_TBF_RTAB,
 177         TCA_TBF_PTAB,
 178         TCA_TBF_RATE64,
 179         TCA_TBF_PRATE64,
 180         TCA_TBF_BURST,
 181         TCA_TBF_PBURST,
 182         __TCA_TBF_MAX,
 183 };
 184
 185 #define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
 186
 187
 188 /* TEQL section */
 189
 190 /* TEQL does not require any parameters */
 191
 192 /* SFQ section */
 193
 194 struct tc_sfq_qopt {
 195         unsigned        quantum;        /* Bytes per round allocated to flow */
 196         int             perturb_period; /* Period of hash perturbation */
 197         __u32           limit;          /* Maximal packets in queue */
 198         unsigned        divisor;        /* Hash divisor  */
 199         unsigned        flows;          /* Maximal number of flows  */
 200 };
 201
 202 struct tc_sfqred_stats {
 203         __u32           prob_drop;      /* Early drops, below max threshold */
 204         __u32           forced_drop;    /* Early drops, after max threshold */
 205         __u32           prob_mark;      /* Marked packets, below max threshold */
 206         __u32           forced_mark;    /* Marked packets, after max threshold */
 207         __u32           prob_mark_head; /* Marked packets, below max threshold */
 208         __u32           forced_mark_head;/* Marked packets, after max threshold */
 209 };
 210
 211 struct tc_sfq_qopt_v1 {
 212         struct tc_sfq_qopt v0;
 213         unsigned int    depth;          /* max number of packets per flow */
 214         unsigned int    headdrop;
 215 /* SFQRED parameters */
 216         __u32           limit;          /* HARD maximal flow queue length (bytes) */
 217         __u32           qth_min;        /* Min average length threshold (bytes) */
 218         __u32           qth_max;        /* Max average length threshold (bytes) */
 219         unsigned char   Wlog;           /* log(W)               */
 220         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 221         unsigned char   Scell_log;      /* cell size for idle damping */
 222         unsigned char   flags;
 223         __u32           max_P;          /* probability, high resolution */
 224 /* SFQRED stats */
 225         struct tc_sfqred_stats stats;
 226 };
 227
 228
 229 struct tc_sfq_xstats {
 230         __s32           allot;
 231 };
 232
 233 /* RED section */
 234
 235 enum {
 236         TCA_RED_UNSPEC,
 237         TCA_RED_PARMS,
 238         TCA_RED_STAB,
 239         TCA_RED_MAX_P,
 240         __TCA_RED_MAX,
 241 };
 242
 243 #define TCA_RED_MAX (__TCA_RED_MAX - 1)
 244
 245 struct tc_red_qopt {
 246         __u32           limit;          /* HARD maximal queue length (bytes)    */
 247         __u32           qth_min;        /* Min average length threshold (bytes) */
 248         __u32           qth_max;        /* Max average length threshold (bytes) */
 249         unsigned char   Wlog;           /* log(W)               */
 250         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 251         unsigned char   Scell_log;      /* cell size for idle damping */
 252         unsigned char   flags;
 253 #define TC_RED_ECN              1
 254 #define TC_RED_HARDDROP         2
 255 #define TC_RED_ADAPTATIVE       4
 256 };
 257
 258 struct tc_red_xstats {
 259         __u32           early;          /* Early drops */
 260         __u32           pdrop;          /* Drops due to queue limits */
 261         __u32           other;          /* Drops due to drop() calls */
 262         __u32           marked;         /* Marked packets */
 263 };
 264
 265 /* GRED section */
 266
 267 #define MAX_DPs 16
 268
 269 enum {
 270        TCA_GRED_UNSPEC,
 271        TCA_GRED_PARMS,
 272        TCA_GRED_STAB,
 273        TCA_GRED_DPS,
 274        TCA_GRED_MAX_P,
 275        TCA_GRED_LIMIT,
 276        __TCA_GRED_MAX,
 277 };
 278
 279 #define TCA_GRED_MAX (__TCA_GRED_MAX - 1)
 280
 281 struct tc_gred_qopt {
 282         __u32           limit;        /* HARD maximal queue length (bytes)    */
 283         __u32           qth_min;      /* Min average length threshold (bytes) */
 284         __u32           qth_max;      /* Max average length threshold (bytes) */
 285         __u32           DP;           /* up to 2^32 DPs */
 286         __u32           backlog;
 287         __u32           qave;
 288         __u32           forced;
 289         __u32           early;
 290         __u32           other;
 291         __u32           pdrop;
 292         __u8            Wlog;         /* log(W)               */
 293         __u8            Plog;         /* log(P_max/(qth_max-qth_min)) */
 294         __u8            Scell_log;    /* cell size for idle damping */
 295         __u8            prio;         /* prio of this VQ */
 296         __u32           packets;
 297         __u32           bytesin;
 298 };
 299
 300 /* gred setup */
 301 struct tc_gred_sopt {
 302         __u32           DPs;
 303         __u32           def_DP;
 304         __u8            grio;
 305         __u8            flags;
 306         __u16           pad1;
 307 };
 308
 309 /* CHOKe section */
 310
 311 enum {
 312         TCA_CHOKE_UNSPEC,
 313         TCA_CHOKE_PARMS,
 314         TCA_CHOKE_STAB,
 315         TCA_CHOKE_MAX_P,
 316         __TCA_CHOKE_MAX,
 317 };
 318
 319 #define TCA_CHOKE_MAX (__TCA_CHOKE_MAX - 1)
 320
 321 struct tc_choke_qopt {
 322         __u32           limit;          /* Hard queue length (packets)  */
 323         __u32           qth_min;        /* Min average threshold (packets) */
 324         __u32           qth_max;        /* Max average threshold (packets) */
 325         unsigned char   Wlog;           /* log(W)               */
 326         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 327         unsigned char   Scell_log;      /* cell size for idle damping */
 328         unsigned char   flags;          /* see RED flags */
 329 };
 330
 331 struct tc_choke_xstats {
 332         __u32           early;          /* Early drops */
 333         __u32           pdrop;          /* Drops due to queue limits */
 334         __u32           other;          /* Drops due to drop() calls */
 335         __u32           marked;         /* Marked packets */
 336         __u32           matched;        /* Drops due to flow match */
 337 };
 338
 339 /* HTB section */
 340 #define TC_HTB_NUMPRIO          8
 341 #define TC_HTB_MAXDEPTH         8
 342 #define TC_HTB_PROTOVER         3 /* the same as HTB and TC's major */
 343
 344 struct tc_htb_opt {
 345         struct tc_ratespec      rate;
 346         struct tc_ratespec      ceil;
 347         __u32   buffer;
 348         __u32   cbuffer;
 349         __u32   quantum;
 350         __u32   level;          /* out only */
 351         __u32   prio;
 352 };
 353 struct tc_htb_glob {
 354         __u32 version;          /* to match HTB/TC */
 355         __u32 rate2quantum;     /* bps->quantum divisor */
 356         __u32 defcls;           /* default class number */
 357         __u32 debug;            /* debug flags */
 358
 359         /* stats */
 360         __u32 direct_pkts; /* count of non shaped packets */
 361 };
 362 enum {
 363         TCA_HTB_UNSPEC,
 364         TCA_HTB_PARMS,
 365         TCA_HTB_INIT,
 366         TCA_HTB_CTAB,
 367         TCA_HTB_RTAB,
 368         TCA_HTB_DIRECT_QLEN,
 369         TCA_HTB_RATE64,
 370         TCA_HTB_CEIL64,
 371         __TCA_HTB_MAX,
 372 };
 373
 374 #define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
 375
 376 struct tc_htb_xstats {
 377         __u32 lends;
 378         __u32 borrows;
 379         __u32 giants;   /* too big packets (rate will not be accurate) */
 380         __u32 tokens;
 381         __u32 ctokens;
 382 };
 383
 384 /* HFSC section */
 385
 386 struct tc_hfsc_qopt {
 387         __u16   defcls;         /* default class */
 388 };
 389
 390 struct tc_service_curve {
 391         __u32   m1;             /* slope of the first segment in bps */
 392         __u32   d;              /* x-projection of the first segment in us */
 393         __u32   m2;             /* slope of the second segment in bps */
 394 };
 395
 396 struct tc_hfsc_stats {
 397         __u64   work;           /* total work done */
 398         __u64   rtwork;         /* work done by real-time criteria */
 399         __u32   period;         /* current period */
 400         __u32   level;          /* class level in hierarchy */
 401 };
 402
 403 enum {
 404         TCA_HFSC_UNSPEC,
 405         TCA_HFSC_RSC,
 406         TCA_HFSC_FSC,
 407         TCA_HFSC_USC,
 408         __TCA_HFSC_MAX,
 409 };
 410
 411 #define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)
 412
 413
 414 /* CBQ section */
 415
 416 #define TC_CBQ_MAXPRIO          8
 417 #define TC_CBQ_MAXLEVEL         8
 418 #define TC_CBQ_DEF_EWMA         5
 419
 420 struct tc_cbq_lssopt {
 421         unsigned char   change;
 422         unsigned char   flags;
 423 #define TCF_CBQ_LSS_BOUNDED     1
 424 #define TCF_CBQ_LSS_ISOLATED    2
 425         unsigned char   ewma_log;
 426         unsigned char   level;
 427 #define TCF_CBQ_LSS_FLAGS       1
 428 #define TCF_CBQ_LSS_EWMA        2
 429 #define TCF_CBQ_LSS_MAXIDLE     4
 430 #define TCF_CBQ_LSS_MINIDLE     8
 431 #define TCF_CBQ_LSS_OFFTIME     0x10
 432 #define TCF_CBQ_LSS_AVPKT       0x20
 433         __u32           maxidle;
 434         __u32           minidle;
 435         __u32           offtime;
 436         __u32           avpkt;
 437 };
 438
 439 struct tc_cbq_wrropt {
 440         unsigned char   flags;
 441         unsigned char   priority;
 442         unsigned char   cpriority;
 443         unsigned char   __reserved;
 444         __u32           allot;
 445         __u32           weight;
 446 };
 447
 448 struct tc_cbq_ovl {
 449         unsigned char   strategy;
 450 #define TC_CBQ_OVL_CLASSIC      0
 451 #define TC_CBQ_OVL_DELAY        1
 452 #define TC_CBQ_OVL_LOWPRIO      2
 453 #define TC_CBQ_OVL_DROP         3
 454 #define TC_CBQ_OVL_RCLASSIC     4
 455         unsigned char   priority2;
 456         __u16           pad;
 457         __u32           penalty;
 458 };
 459
 460 struct tc_cbq_police {
 461         unsigned char   police;
 462         unsigned char   __res1;
 463         unsigned short  __res2;
 464 };
 465
 466 struct tc_cbq_fopt {
 467         __u32           split;
 468         __u32           defmap;
 469         __u32           defchange;
 470 };
 471
 472 struct tc_cbq_xstats {
 473         __u32           borrows;
 474         __u32           overactions;
 475         __s32           avgidle;
 476         __s32           undertime;
 477 };
 478
 479 enum {
 480         TCA_CBQ_UNSPEC,
 481         TCA_CBQ_LSSOPT,
 482         TCA_CBQ_WRROPT,
 483         TCA_CBQ_FOPT,
 484         TCA_CBQ_OVL_STRATEGY,
 485         TCA_CBQ_RATE,
 486         TCA_CBQ_RTAB,
 487         TCA_CBQ_POLICE,
 488         __TCA_CBQ_MAX,
 489 };
 490
 491 #define TCA_CBQ_MAX     (__TCA_CBQ_MAX - 1)
 492
 493 /* dsmark section */
 494
 495 enum {
 496         TCA_DSMARK_UNSPEC,
 497         TCA_DSMARK_INDICES,
 498         TCA_DSMARK_DEFAULT_INDEX,
 499         TCA_DSMARK_SET_TC_INDEX,
 500         TCA_DSMARK_MASK,
 501         TCA_DSMARK_VALUE,
 502         __TCA_DSMARK_MAX,
 503 };
 504
 505 #define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)
 506
 507 /* ATM  section */
 508
 509 enum {
 510         TCA_ATM_UNSPEC,
 511         TCA_ATM_FD,             /* file/socket descriptor */
 512         TCA_ATM_PTR,            /* pointer to descriptor - later */
 513         TCA_ATM_HDR,            /* LL header */
 514         TCA_ATM_EXCESS,         /* excess traffic class (0 for CLP)  */
 515         TCA_ATM_ADDR,           /* PVC address (for output only) */
 516         TCA_ATM_STATE,          /* VC state (ATM_VS_*; for output only) */
 517         __TCA_ATM_MAX,
 518 };
 519
 520 #define TCA_ATM_MAX     (__TCA_ATM_MAX - 1)
 521
 522 /* Network emulator */
 523
 524 enum {
 525         TCA_NETEM_UNSPEC,
 526         TCA_NETEM_CORR,
 527         TCA_NETEM_DELAY_DIST,
 528         TCA_NETEM_REORDER,
 529         TCA_NETEM_CORRUPT,
 530         TCA_NETEM_LOSS,
 531         TCA_NETEM_RATE,
 532         TCA_NETEM_ECN,
 533         TCA_NETEM_RATE64,
 534         __TCA_NETEM_MAX,
 535 };
 536
 537 #define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)
 538
 539 struct tc_netem_qopt {
 540         __u32   latency;        /* added delay (us) */
 541         __u32   limit;          /* fifo limit (packets) */
 542         __u32   loss;           /* random packet loss (0=none ~0=100%) */
 543         __u32   gap;            /* re-ordering gap (0 for none) */
 544         __u32   duplicate;      /* random packet dup  (0=none ~0=100%) */
 545         __u32   jitter;         /* random jitter in latency (us) */
 546 };
 547
 548 struct tc_netem_corr {
 549         __u32   delay_corr;     /* delay correlation */
 550         __u32   loss_corr;      /* packet loss correlation */
 551         __u32   dup_corr;       /* duplicate correlation  */
 552 };
 553
 554 struct tc_netem_reorder {
 555         __u32   probability;
 556         __u32   correlation;
 557 };
 558
 559 struct tc_netem_corrupt {
 560         __u32   probability;
 561         __u32   correlation;
 562 };
 563
 564 struct tc_netem_rate {
 565         __u32   rate;   /* byte/s */
 566         __s32   packet_overhead;
 567         __u32   cell_size;
 568         __s32   cell_overhead;
 569 };
 570
 571 enum {
 572         NETEM_LOSS_UNSPEC,
 573         NETEM_LOSS_GI,          /* General Intuitive - 4 state model */
 574         NETEM_LOSS_GE,          /* Gilbert Elliot models */
 575         __NETEM_LOSS_MAX
 576 };
 577 #define NETEM_LOSS_MAX (__NETEM_LOSS_MAX - 1)
 578
 579 /* State transition probabilities for 4 state model */
 580 struct tc_netem_gimodel {
 581         __u32   p13;
 582         __u32   p31;
 583         __u32   p32;
 584         __u32   p14;
 585         __u32   p23;
 586 };
 587
 588 /* Gilbert-Elliot models */
 589 struct tc_netem_gemodel {
 590         __u32 p;
 591         __u32 r;
 592         __u32 h;
 593         __u32 k1;
 594 };
 595
 596 #define NETEM_DIST_SCALE        8192
 597 #define NETEM_DIST_MAX          16384
 598
 599 /* DRR */
 600
 601 enum {
 602         TCA_DRR_UNSPEC,
 603         TCA_DRR_QUANTUM,
 604         __TCA_DRR_MAX
 605 };
 606
 607 #define TCA_DRR_MAX     (__TCA_DRR_MAX - 1)
 608
 609 struct tc_drr_stats {
 610         __u32   deficit;
 611 };
 612
 613 /* MQPRIO */
 614 #define TC_QOPT_BITMASK 15
 615 #define TC_QOPT_MAX_QUEUE 16
 616
 617 struct tc_mqprio_qopt {
 618         __u8    num_tc;
 619         __u8    prio_tc_map[TC_QOPT_BITMASK + 1];
 620         __u8    hw;
 621         __u16   count[TC_QOPT_MAX_QUEUE];
 622         __u16   offset[TC_QOPT_MAX_QUEUE];
 623 };
 624
 625 /* SFB */
 626
 627 enum {
 628         TCA_SFB_UNSPEC,
 629         TCA_SFB_PARMS,
 630         __TCA_SFB_MAX,
 631 };
 632
 633 #define TCA_SFB_MAX (__TCA_SFB_MAX - 1)
 634
 635 /*
 636  * Note: increment, decrement are Q0.16 fixed-point values.
 637  */
 638 struct tc_sfb_qopt {
 639         __u32 rehash_interval;  /* delay between hash move, in ms */
 640         __u32 warmup_time;      /* double buffering warmup time in ms (warmup_time < rehash_interval) */
 641         __u32 max;              /* max len of qlen_min */
 642         __u32 bin_size;         /* maximum queue length per bin */
 643         __u32 increment;        /* probability increment, (d1 in Blue) */
 644         __u32 decrement;        /* probability decrement, (d2 in Blue) */
 645         __u32 limit;            /* max SFB queue length */
 646         __u32 penalty_rate;     /* inelastic flows are rate limited to 'rate' pps */
 647         __u32 penalty_burst;
 648 };
 649
 650 struct tc_sfb_xstats {
 651         __u32 earlydrop;
 652         __u32 penaltydrop;
 653         __u32 bucketdrop;
 654         __u32 queuedrop;
 655         __u32 childdrop; /* drops in child qdisc */
 656         __u32 marked;
 657         __u32 maxqlen;
 658         __u32 maxprob;
 659         __u32 avgprob;
 660 };
 661
 662 #define SFB_MAX_PROB 0xFFFF
 663
 664 /* QFQ */
 665 enum {
 666         TCA_QFQ_UNSPEC,
 667         TCA_QFQ_WEIGHT,
 668         TCA_QFQ_LMAX,
 669         __TCA_QFQ_MAX
 670 };
 671
 672 #define TCA_QFQ_MAX     (__TCA_QFQ_MAX - 1)
 673
 674 struct tc_qfq_stats {
 675         __u32 weight;
 676         __u32 lmax;
 677 };
 678
 679 /* CODEL */
 680
 681 enum {
 682         TCA_CODEL_UNSPEC,
 683         TCA_CODEL_TARGET,
 684         TCA_CODEL_LIMIT,
 685         TCA_CODEL_INTERVAL,
 686         TCA_CODEL_ECN,
 687         TCA_CODEL_CE_THRESHOLD,
 688         __TCA_CODEL_MAX
 689 };
 690
 691 #define TCA_CODEL_MAX   (__TCA_CODEL_MAX - 1)
 692
 693 struct tc_codel_xstats {
 694         __u32   maxpacket; /* largest packet we've seen so far */
 695         __u32   count;     /* how many drops we've done since the last time we
 696                             * entered dropping state
 697                             */
 698         __u32   lastcount; /* count at entry to dropping state */
 699         __u32   ldelay;    /* in-queue delay seen by most recently dequeued packet */
 700         __s32   drop_next; /* time to drop next packet */
 701         __u32   drop_overlimit; /* number of time max qdisc packet limit was hit */
 702         __u32   ecn_mark;  /* number of packets we ECN marked instead of dropped */
 703         __u32   dropping;  /* are we in dropping state ? */
 704         __u32   ce_mark;   /* number of CE marked packets because of ce_threshold */
 705 };
 706
 707 /* FQ_CODEL */
 708
 709 enum {
 710         TCA_FQ_CODEL_UNSPEC,
 711         TCA_FQ_CODEL_TARGET,
 712         TCA_FQ_CODEL_LIMIT,
 713         TCA_FQ_CODEL_INTERVAL,
 714         TCA_FQ_CODEL_ECN,
 715         TCA_FQ_CODEL_FLOWS,
 716         TCA_FQ_CODEL_QUANTUM,
 717         TCA_FQ_CODEL_CE_THRESHOLD,
 718         __TCA_FQ_CODEL_MAX
 719 };
 720
 721 #define TCA_FQ_CODEL_MAX        (__TCA_FQ_CODEL_MAX - 1)
 722
 723 enum {
 724         TCA_FQ_CODEL_XSTATS_QDISC,
 725         TCA_FQ_CODEL_XSTATS_CLASS,
 726 };
 727
 728 struct tc_fq_codel_qd_stats {
 729         __u32   maxpacket;      /* largest packet we've seen so far */
 730         __u32   drop_overlimit; /* number of time max qdisc
 731                                  * packet limit was hit
 732                                  */
 733         __u32   ecn_mark;       /* number of packets we ECN marked
 734                                  * instead of being dropped
 735                                  */
 736         __u32   new_flow_count; /* number of time packets
 737                                  * created a 'new flow'
 738                                  */
 739         __u32   new_flows_len;  /* count of flows in new list */
 740         __u32   old_flows_len;  /* count of flows in old list */
 741         __u32   ce_mark;        /* packets above ce_threshold */
 742 };
 743
 744 struct tc_fq_codel_cl_stats {
 745         __s32   deficit;
 746         __u32   ldelay;         /* in-queue delay seen by most recently
 747                                  * dequeued packet
 748                                  */
 749         __u32   count;
 750         __u32   lastcount;
 751         __u32   dropping;
 752         __s32   drop_next;
 753 };
 754
 755 struct tc_fq_codel_xstats {
 756         __u32   type;
 757         union {
 758                 struct tc_fq_codel_qd_stats qdisc_stats;
 759                 struct tc_fq_codel_cl_stats class_stats;
 760         };
 761 };
 762
 763 /* FQ */
 764
 765 enum {
 766         TCA_FQ_UNSPEC,
 767
 768         TCA_FQ_PLIMIT,          /* limit of total number of packets in queue */
 769
 770         TCA_FQ_FLOW_PLIMIT,     /* limit of packets per flow */
 771
 772         TCA_FQ_QUANTUM,         /* RR quantum */
 773
 774         TCA_FQ_INITIAL_QUANTUM,         /* RR quantum for new flow */
 775
 776         TCA_FQ_RATE_ENABLE,     /* enable/disable rate limiting */
 777
 778         TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
 779
 780         TCA_FQ_FLOW_MAX_RATE,   /* per flow max rate */
 781
 782         TCA_FQ_BUCKETS_LOG,     /* log2(number of buckets) */
 783
 784         TCA_FQ_FLOW_REFILL_DELAY,       /* flow credit refill delay in usec */
 785
 786         TCA_FQ_ORPHAN_MASK,     /* mask applied to orphaned skb hashes */
 787
 788         __TCA_FQ_MAX
 789 };
 790
 791 #define TCA_FQ_MAX      (__TCA_FQ_MAX - 1)
 792
 793 struct tc_fq_qd_stats {
 794         __u64   gc_flows;
 795         __u64   highprio_packets;
 796         __u64   tcp_retrans;
 797         __u64   throttled;
 798         __u64   flows_plimit;
 799         __u64   pkts_too_long;
 800         __u64   allocation_errors;
 801         __s64   time_next_delayed_flow;
 802         __u32   flows;
 803         __u32   inactive_flows;
 804         __u32   throttled_flows;
 805         __u32   pad;
 806 };
 807
 808 /* Heavy-Hitter Filter */
 809
 810 enum {
 811         TCA_HHF_UNSPEC,
 812         TCA_HHF_BACKLOG_LIMIT,
 813         TCA_HHF_QUANTUM,
 814         TCA_HHF_HH_FLOWS_LIMIT,
 815         TCA_HHF_RESET_TIMEOUT,
 816         TCA_HHF_ADMIT_BYTES,
 817         TCA_HHF_EVICT_TIMEOUT,
 818         TCA_HHF_NON_HH_WEIGHT,
 819         __TCA_HHF_MAX
 820 };
 821
 822 #define TCA_HHF_MAX     (__TCA_HHF_MAX - 1)
 823
 824 struct tc_hhf_xstats {
 825         __u32   drop_overlimit; /* number of times max qdisc packet limit
 826                                  * was hit
 827                                  */
 828         __u32   hh_overlimit;   /* number of times max heavy-hitters was hit */
 829         __u32   hh_tot_count;   /* number of captured heavy-hitters so far */
 830         __u32   hh_cur_count;   /* number of current heavy-hitters */
 831 };
 832
 833 /* PIE */
 834 enum {
 835         TCA_PIE_UNSPEC,
 836         TCA_PIE_TARGET,
 837         TCA_PIE_LIMIT,
 838         TCA_PIE_TUPDATE,
 839         TCA_PIE_ALPHA,
 840         TCA_PIE_BETA,
 841         TCA_PIE_ECN,
 842         TCA_PIE_BYTEMODE,
 843         __TCA_PIE_MAX
 844 };
 845 #define TCA_PIE_MAX   (__TCA_PIE_MAX - 1)
 846
 847 struct tc_pie_xstats {
 848         __u32 prob;             /* current probability */
 849         __u32 delay;            /* current delay in ms */
 850         __u32 avg_dq_rate;      /* current average dq_rate in bits/pie_time */
 851         __u32 packets_in;       /* total number of packets enqueued */
 852         __u32 dropped;          /* packets dropped due to pie_action */
 853         __u32 overlimit;        /* dropped due to lack of space in queue */
 854         __u32 maxq;             /* maximum queue size */
 855         __u32 ecn_mark;         /* packets marked with ecn*/
 856 };
 857 #endif