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_MAX,
 295 };
 296
 297 #define TCA_GRED_MAX (__TCA_GRED_MAX - 1)
 298
 299 struct tc_gred_qopt {
 300         __u32           limit;        /* HARD maximal queue length (bytes)    */
 301         __u32           qth_min;      /* Min average length threshold (bytes) */
 302         __u32           qth_max;      /* Max average length threshold (bytes) */
 303         __u32           DP;           /* up to 2^32 DPs */
 304         __u32           backlog;
 305         __u32           qave;
 306         __u32           forced;
 307         __u32           early;
 308         __u32           other;
 309         __u32           pdrop;
 310         __u8            Wlog;         /* log(W)               */
 311         __u8            Plog;         /* log(P_max/(qth_max-qth_min)) */
 312         __u8            Scell_log;    /* cell size for idle damping */
 313         __u8            prio;         /* prio of this VQ */
 314         __u32           packets;
 315         __u32           bytesin;
 316 };
 317
 318 /* gred setup */
 319 struct tc_gred_sopt {
 320         __u32           DPs;
 321         __u32           def_DP;
 322         __u8            grio;
 323         __u8            flags;
 324         __u16           pad1;
 325 };
 326
 327 /* CHOKe section */
 328
 329 enum {
 330         TCA_CHOKE_UNSPEC,
 331         TCA_CHOKE_PARMS,
 332         TCA_CHOKE_STAB,
 333         TCA_CHOKE_MAX_P,
 334         __TCA_CHOKE_MAX,
 335 };
 336
 337 #define TCA_CHOKE_MAX (__TCA_CHOKE_MAX - 1)
 338
 339 struct tc_choke_qopt {
 340         __u32           limit;          /* Hard queue length (packets)  */
 341         __u32           qth_min;        /* Min average threshold (packets) */
 342         __u32           qth_max;        /* Max average threshold (packets) */
 343         unsigned char   Wlog;           /* log(W)               */
 344         unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
 345         unsigned char   Scell_log;      /* cell size for idle damping */
 346         unsigned char   flags;          /* see RED flags */
 347 };
 348
 349 struct tc_choke_xstats {
 350         __u32           early;          /* Early drops */
 351         __u32           pdrop;          /* Drops due to queue limits */
 352         __u32           other;          /* Drops due to drop() calls */
 353         __u32           marked;         /* Marked packets */
 354         __u32           matched;        /* Drops due to flow match */
 355 };
 356
 357 /* HTB section */
 358 #define TC_HTB_NUMPRIO          8
 359 #define TC_HTB_MAXDEPTH         8
 360 #define TC_HTB_PROTOVER         3 /* the same as HTB and TC's major */
 361
 362 struct tc_htb_opt {
 363         struct tc_ratespec      rate;
 364         struct tc_ratespec      ceil;
 365         __u32   buffer;
 366         __u32   cbuffer;
 367         __u32   quantum;
 368         __u32   level;          /* out only */
 369         __u32   prio;
 370 };
 371 struct tc_htb_glob {
 372         __u32 version;          /* to match HTB/TC */
 373         __u32 rate2quantum;     /* bps->quantum divisor */
 374         __u32 defcls;           /* default class number */
 375         __u32 debug;            /* debug flags */
 376
 377         /* stats */
 378         __u32 direct_pkts; /* count of non shaped packets */
 379 };
 380 enum {
 381         TCA_HTB_UNSPEC,
 382         TCA_HTB_PARMS,
 383         TCA_HTB_INIT,
 384         TCA_HTB_CTAB,
 385         TCA_HTB_RTAB,
 386         TCA_HTB_DIRECT_QLEN,
 387         TCA_HTB_RATE64,
 388         TCA_HTB_CEIL64,
 389         TCA_HTB_PAD,
 390         __TCA_HTB_MAX,
 391 };
 392
 393 #define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
 394
 395 struct tc_htb_xstats {
 396         __u32 lends;
 397         __u32 borrows;
 398         __u32 giants;   /* too big packets (rate will not be accurate) */
 399         __u32 tokens;
 400         __u32 ctokens;
 401 };
 402
 403 /* HFSC section */
 404
 405 struct tc_hfsc_qopt {
 406         __u16   defcls;         /* default class */
 407 };
 408
 409 struct tc_service_curve {
 410         __u32   m1;             /* slope of the first segment in bps */
 411         __u32   d;              /* x-projection of the first segment in us */
 412         __u32   m2;             /* slope of the second segment in bps */
 413 };
 414
 415 struct tc_hfsc_stats {
 416         __u64   work;           /* total work done */
 417         __u64   rtwork;         /* work done by real-time criteria */
 418         __u32   period;         /* current period */
 419         __u32   level;          /* class level in hierarchy */
 420 };
 421
 422 enum {
 423         TCA_HFSC_UNSPEC,
 424         TCA_HFSC_RSC,
 425         TCA_HFSC_FSC,
 426         TCA_HFSC_USC,
 427         __TCA_HFSC_MAX,
 428 };
 429
 430 #define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)
 431
 432
 433 /* CBQ section */
 434
 435 #define TC_CBQ_MAXPRIO          8
 436 #define TC_CBQ_MAXLEVEL         8
 437 #define TC_CBQ_DEF_EWMA         5
 438
 439 struct tc_cbq_lssopt {
 440         unsigned char   change;
 441         unsigned char   flags;
 442 #define TCF_CBQ_LSS_BOUNDED     1
 443 #define TCF_CBQ_LSS_ISOLATED    2
 444         unsigned char   ewma_log;
 445         unsigned char   level;
 446 #define TCF_CBQ_LSS_FLAGS       1
 447 #define TCF_CBQ_LSS_EWMA        2
 448 #define TCF_CBQ_LSS_MAXIDLE     4
 449 #define TCF_CBQ_LSS_MINIDLE     8
 450 #define TCF_CBQ_LSS_OFFTIME     0x10
 451 #define TCF_CBQ_LSS_AVPKT       0x20
 452         __u32           maxidle;
 453         __u32           minidle;
 454         __u32           offtime;
 455         __u32           avpkt;
 456 };
 457
 458 struct tc_cbq_wrropt {
 459         unsigned char   flags;
 460         unsigned char   priority;
 461         unsigned char   cpriority;
 462         unsigned char   __reserved;
 463         __u32           allot;
 464         __u32           weight;
 465 };
 466
 467 struct tc_cbq_ovl {
 468         unsigned char   strategy;
 469 #define TC_CBQ_OVL_CLASSIC      0
 470 #define TC_CBQ_OVL_DELAY        1
 471 #define TC_CBQ_OVL_LOWPRIO      2
 472 #define TC_CBQ_OVL_DROP         3
 473 #define TC_CBQ_OVL_RCLASSIC     4
 474         unsigned char   priority2;
 475         __u16           pad;
 476         __u32           penalty;
 477 };
 478
 479 struct tc_cbq_police {
 480         unsigned char   police;
 481         unsigned char   __res1;
 482         unsigned short  __res2;
 483 };
 484
 485 struct tc_cbq_fopt {
 486         __u32           split;
 487         __u32           defmap;
 488         __u32           defchange;
 489 };
 490
 491 struct tc_cbq_xstats {
 492         __u32           borrows;
 493         __u32           overactions;
 494         __s32           avgidle;
 495         __s32           undertime;
 496 };
 497
 498 enum {
 499         TCA_CBQ_UNSPEC,
 500         TCA_CBQ_LSSOPT,
 501         TCA_CBQ_WRROPT,
 502         TCA_CBQ_FOPT,
 503         TCA_CBQ_OVL_STRATEGY,
 504         TCA_CBQ_RATE,
 505         TCA_CBQ_RTAB,
 506         TCA_CBQ_POLICE,
 507         __TCA_CBQ_MAX,
 508 };
 509
 510 #define TCA_CBQ_MAX     (__TCA_CBQ_MAX - 1)
 511
 512 /* dsmark section */
 513
 514 enum {
 515         TCA_DSMARK_UNSPEC,
 516         TCA_DSMARK_INDICES,
 517         TCA_DSMARK_DEFAULT_INDEX,
 518         TCA_DSMARK_SET_TC_INDEX,
 519         TCA_DSMARK_MASK,
 520         TCA_DSMARK_VALUE,
 521         __TCA_DSMARK_MAX,
 522 };
 523
 524 #define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)
 525
 526 /* ATM  section */
 527
 528 enum {
 529         TCA_ATM_UNSPEC,
 530         TCA_ATM_FD,             /* file/socket descriptor */
 531         TCA_ATM_PTR,            /* pointer to descriptor - later */
 532         TCA_ATM_HDR,            /* LL header */
 533         TCA_ATM_EXCESS,         /* excess traffic class (0 for CLP)  */
 534         TCA_ATM_ADDR,           /* PVC address (for output only) */
 535         TCA_ATM_STATE,          /* VC state (ATM_VS_*; for output only) */
 536         __TCA_ATM_MAX,
 537 };
 538
 539 #define TCA_ATM_MAX     (__TCA_ATM_MAX - 1)
 540
 541 /* Network emulator */
 542
 543 enum {
 544         TCA_NETEM_UNSPEC,
 545         TCA_NETEM_CORR,
 546         TCA_NETEM_DELAY_DIST,
 547         TCA_NETEM_REORDER,
 548         TCA_NETEM_CORRUPT,
 549         TCA_NETEM_LOSS,
 550         TCA_NETEM_RATE,
 551         TCA_NETEM_ECN,
 552         TCA_NETEM_RATE64,
 553         TCA_NETEM_PAD,
 554         TCA_NETEM_LATENCY64,
 555         TCA_NETEM_JITTER64,
 556         TCA_NETEM_SLOT,
 557         TCA_NETEM_SLOT_DIST,
 558         __TCA_NETEM_MAX,
 559 };
 560
 561 #define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)
 562
 563 struct tc_netem_qopt {
 564         __u32   latency;        /* added delay (us) */
 565         __u32   limit;          /* fifo limit (packets) */
 566         __u32   loss;           /* random packet loss (0=none ~0=100%) */
 567         __u32   gap;            /* re-ordering gap (0 for none) */
 568         __u32   duplicate;      /* random packet dup  (0=none ~0=100%) */
 569         __u32   jitter;         /* random jitter in latency (us) */
 570 };
 571
 572 struct tc_netem_corr {
 573         __u32   delay_corr;     /* delay correlation */
 574         __u32   loss_corr;      /* packet loss correlation */
 575         __u32   dup_corr;       /* duplicate correlation  */
 576 };
 577
 578 struct tc_netem_reorder {
 579         __u32   probability;
 580         __u32   correlation;
 581 };
 582
 583 struct tc_netem_corrupt {
 584         __u32   probability;
 585         __u32   correlation;
 586 };
 587
 588 struct tc_netem_rate {
 589         __u32   rate;   /* byte/s */
 590         __s32   packet_overhead;
 591         __u32   cell_size;
 592         __s32   cell_overhead;
 593 };
 594
 595 struct tc_netem_slot {
 596         __s64   min_delay; /* nsec */
 597         __s64   max_delay;
 598         __s32   max_packets;
 599         __s32   max_bytes;
 600         __s64   dist_delay; /* nsec */
 601         __s64   dist_jitter; /* nsec */
 602 };
 603
 604 enum {
 605         NETEM_LOSS_UNSPEC,
 606         NETEM_LOSS_GI,          /* General Intuitive - 4 state model */
 607         NETEM_LOSS_GE,          /* Gilbert Elliot models */
 608         __NETEM_LOSS_MAX
 609 };
 610 #define NETEM_LOSS_MAX (__NETEM_LOSS_MAX - 1)
 611
 612 /* State transition probabilities for 4 state model */
 613 struct tc_netem_gimodel {
 614         __u32   p13;
 615         __u32   p31;
 616         __u32   p32;
 617         __u32   p14;
 618         __u32   p23;
 619 };
 620
 621 /* Gilbert-Elliot models */
 622 struct tc_netem_gemodel {
 623         __u32 p;
 624         __u32 r;
 625         __u32 h;
 626         __u32 k1;
 627 };
 628
 629 #define NETEM_DIST_SCALE        8192
 630 #define NETEM_DIST_MAX          16384
 631
 632 /* DRR */
 633
 634 enum {
 635         TCA_DRR_UNSPEC,
 636         TCA_DRR_QUANTUM,
 637         __TCA_DRR_MAX
 638 };
 639
 640 #define TCA_DRR_MAX     (__TCA_DRR_MAX - 1)
 641
 642 struct tc_drr_stats {
 643         __u32   deficit;
 644 };
 645
 646 /* MQPRIO */
 647 #define TC_QOPT_BITMASK 15
 648 #define TC_QOPT_MAX_QUEUE 16
 649
 650 enum {
 651         TC_MQPRIO_HW_OFFLOAD_NONE,      /* no offload requested */
 652         TC_MQPRIO_HW_OFFLOAD_TCS,       /* offload TCs, no queue counts */
 653         __TC_MQPRIO_HW_OFFLOAD_MAX
 654 };
 655
 656 #define TC_MQPRIO_HW_OFFLOAD_MAX (__TC_MQPRIO_HW_OFFLOAD_MAX - 1)
 657
 658 enum {
 659         TC_MQPRIO_MODE_DCB,
 660         TC_MQPRIO_MODE_CHANNEL,
 661         __TC_MQPRIO_MODE_MAX
 662 };
 663
 664 #define __TC_MQPRIO_MODE_MAX (__TC_MQPRIO_MODE_MAX - 1)
 665
 666 enum {
 667         TC_MQPRIO_SHAPER_DCB,
 668         TC_MQPRIO_SHAPER_BW_RATE,       /* Add new shapers below */
 669         __TC_MQPRIO_SHAPER_MAX
 670 };
 671
 672 #define __TC_MQPRIO_SHAPER_MAX (__TC_MQPRIO_SHAPER_MAX - 1)
 673
 674 struct tc_mqprio_qopt {
 675         __u8    num_tc;
 676         __u8    prio_tc_map[TC_QOPT_BITMASK + 1];
 677         __u8    hw;
 678         __u16   count[TC_QOPT_MAX_QUEUE];
 679         __u16   offset[TC_QOPT_MAX_QUEUE];
 680 };
 681
 682 #define TC_MQPRIO_F_MODE                0x1
 683 #define TC_MQPRIO_F_SHAPER              0x2
 684 #define TC_MQPRIO_F_MIN_RATE            0x4
 685 #define TC_MQPRIO_F_MAX_RATE            0x8
 686
 687 enum {
 688         TCA_MQPRIO_UNSPEC,
 689         TCA_MQPRIO_MODE,
 690         TCA_MQPRIO_SHAPER,
 691         TCA_MQPRIO_MIN_RATE64,
 692         TCA_MQPRIO_MAX_RATE64,
 693         __TCA_MQPRIO_MAX,
 694 };
 695
 696 #define TCA_MQPRIO_MAX (__TCA_MQPRIO_MAX - 1)
 697
 698 /* SFB */
 699
 700 enum {
 701         TCA_SFB_UNSPEC,
 702         TCA_SFB_PARMS,
 703         __TCA_SFB_MAX,
 704 };
 705
 706 #define TCA_SFB_MAX (__TCA_SFB_MAX - 1)
 707
 708 /*
 709  * Note: increment, decrement are Q0.16 fixed-point values.
 710  */
 711 struct tc_sfb_qopt {
 712         __u32 rehash_interval;  /* delay between hash move, in ms */
 713         __u32 warmup_time;      /* double buffering warmup time in ms (warmup_time < rehash_interval) */
 714         __u32 max;              /* max len of qlen_min */
 715         __u32 bin_size;         /* maximum queue length per bin */
 716         __u32 increment;        /* probability increment, (d1 in Blue) */
 717         __u32 decrement;        /* probability decrement, (d2 in Blue) */
 718         __u32 limit;            /* max SFB queue length */
 719         __u32 penalty_rate;     /* inelastic flows are rate limited to 'rate' pps */
 720         __u32 penalty_burst;
 721 };
 722
 723 struct tc_sfb_xstats {
 724         __u32 earlydrop;
 725         __u32 penaltydrop;
 726         __u32 bucketdrop;
 727         __u32 queuedrop;
 728         __u32 childdrop; /* drops in child qdisc */
 729         __u32 marked;
 730         __u32 maxqlen;
 731         __u32 maxprob;
 732         __u32 avgprob;
 733 };
 734
 735 #define SFB_MAX_PROB 0xFFFF
 736
 737 /* QFQ */
 738 enum {
 739         TCA_QFQ_UNSPEC,
 740         TCA_QFQ_WEIGHT,
 741         TCA_QFQ_LMAX,
 742         __TCA_QFQ_MAX
 743 };
 744
 745 #define TCA_QFQ_MAX     (__TCA_QFQ_MAX - 1)
 746
 747 struct tc_qfq_stats {
 748         __u32 weight;
 749         __u32 lmax;
 750 };
 751
 752 /* CODEL */
 753
 754 enum {
 755         TCA_CODEL_UNSPEC,
 756         TCA_CODEL_TARGET,
 757         TCA_CODEL_LIMIT,
 758         TCA_CODEL_INTERVAL,
 759         TCA_CODEL_ECN,
 760         TCA_CODEL_CE_THRESHOLD,
 761         __TCA_CODEL_MAX
 762 };
 763
 764 #define TCA_CODEL_MAX   (__TCA_CODEL_MAX - 1)
 765
 766 struct tc_codel_xstats {
 767         __u32   maxpacket; /* largest packet we've seen so far */
 768         __u32   count;     /* how many drops we've done since the last time we
 769                             * entered dropping state
 770                             */
 771         __u32   lastcount; /* count at entry to dropping state */
 772         __u32   ldelay;    /* in-queue delay seen by most recently dequeued packet */
 773         __s32   drop_next; /* time to drop next packet */
 774         __u32   drop_overlimit; /* number of time max qdisc packet limit was hit */
 775         __u32   ecn_mark;  /* number of packets we ECN marked instead of dropped */
 776         __u32   dropping;  /* are we in dropping state ? */
 777         __u32   ce_mark;   /* number of CE marked packets because of ce_threshold */
 778 };
 779
 780 /* FQ_CODEL */
 781
 782 enum {
 783         TCA_FQ_CODEL_UNSPEC,
 784         TCA_FQ_CODEL_TARGET,
 785         TCA_FQ_CODEL_LIMIT,
 786         TCA_FQ_CODEL_INTERVAL,
 787         TCA_FQ_CODEL_ECN,
 788         TCA_FQ_CODEL_FLOWS,
 789         TCA_FQ_CODEL_QUANTUM,
 790         TCA_FQ_CODEL_CE_THRESHOLD,
 791         TCA_FQ_CODEL_DROP_BATCH_SIZE,
 792         TCA_FQ_CODEL_MEMORY_LIMIT,
 793         __TCA_FQ_CODEL_MAX
 794 };
 795
 796 #define TCA_FQ_CODEL_MAX        (__TCA_FQ_CODEL_MAX - 1)
 797
 798 enum {
 799         TCA_FQ_CODEL_XSTATS_QDISC,
 800         TCA_FQ_CODEL_XSTATS_CLASS,
 801 };
 802
 803 struct tc_fq_codel_qd_stats {
 804         __u32   maxpacket;      /* largest packet we've seen so far */
 805         __u32   drop_overlimit; /* number of time max qdisc
 806                                  * packet limit was hit
 807                                  */
 808         __u32   ecn_mark;       /* number of packets we ECN marked
 809                                  * instead of being dropped
 810                                  */
 811         __u32   new_flow_count; /* number of time packets
 812                                  * created a 'new flow'
 813                                  */
 814         __u32   new_flows_len;  /* count of flows in new list */
 815         __u32   old_flows_len;  /* count of flows in old list */
 816         __u32   ce_mark;        /* packets above ce_threshold */
 817         __u32   memory_usage;   /* in bytes */
 818         __u32   drop_overmemory;
 819 };
 820
 821 struct tc_fq_codel_cl_stats {
 822         __s32   deficit;
 823         __u32   ldelay;         /* in-queue delay seen by most recently
 824                                  * dequeued packet
 825                                  */
 826         __u32   count;
 827         __u32   lastcount;
 828         __u32   dropping;
 829         __s32   drop_next;
 830 };
 831
 832 struct tc_fq_codel_xstats {
 833         __u32   type;
 834         union {
 835                 struct tc_fq_codel_qd_stats qdisc_stats;
 836                 struct tc_fq_codel_cl_stats class_stats;
 837         };
 838 };
 839
 840 /* FQ */
 841
 842 enum {
 843         TCA_FQ_UNSPEC,
 844
 845         TCA_FQ_PLIMIT,          /* limit of total number of packets in queue */
 846
 847         TCA_FQ_FLOW_PLIMIT,     /* limit of packets per flow */
 848
 849         TCA_FQ_QUANTUM,         /* RR quantum */
 850
 851         TCA_FQ_INITIAL_QUANTUM,         /* RR quantum for new flow */
 852
 853         TCA_FQ_RATE_ENABLE,     /* enable/disable rate limiting */
 854
 855         TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
 856
 857         TCA_FQ_FLOW_MAX_RATE,   /* per flow max rate */
 858
 859         TCA_FQ_BUCKETS_LOG,     /* log2(number of buckets) */
 860
 861         TCA_FQ_FLOW_REFILL_DELAY,       /* flow credit refill delay in usec */
 862
 863         TCA_FQ_ORPHAN_MASK,     /* mask applied to orphaned skb hashes */
 864
 865         TCA_FQ_LOW_RATE_THRESHOLD, /* per packet delay under this rate */
 866
 867         __TCA_FQ_MAX
 868 };
 869
 870 #define TCA_FQ_MAX      (__TCA_FQ_MAX - 1)
 871
 872 struct tc_fq_qd_stats {
 873         __u64   gc_flows;
 874         __u64   highprio_packets;
 875         __u64   tcp_retrans;
 876         __u64   throttled;
 877         __u64   flows_plimit;
 878         __u64   pkts_too_long;
 879         __u64   allocation_errors;
 880         __s64   time_next_delayed_flow;
 881         __u32   flows;
 882         __u32   inactive_flows;
 883         __u32   throttled_flows;
 884         __u32   unthrottle_latency_ns;
 885 };
 886
 887 /* Heavy-Hitter Filter */
 888
 889 enum {
 890         TCA_HHF_UNSPEC,
 891         TCA_HHF_BACKLOG_LIMIT,
 892         TCA_HHF_QUANTUM,
 893         TCA_HHF_HH_FLOWS_LIMIT,
 894         TCA_HHF_RESET_TIMEOUT,
 895         TCA_HHF_ADMIT_BYTES,
 896         TCA_HHF_EVICT_TIMEOUT,
 897         TCA_HHF_NON_HH_WEIGHT,
 898         __TCA_HHF_MAX
 899 };
 900
 901 #define TCA_HHF_MAX     (__TCA_HHF_MAX - 1)
 902
 903 struct tc_hhf_xstats {
 904         __u32   drop_overlimit; /* number of times max qdisc packet limit
 905                                  * was hit
 906                                  */
 907         __u32   hh_overlimit;   /* number of times max heavy-hitters was hit */
 908         __u32   hh_tot_count;   /* number of captured heavy-hitters so far */
 909         __u32   hh_cur_count;   /* number of current heavy-hitters */
 910 };
 911
 912 /* PIE */
 913 enum {
 914         TCA_PIE_UNSPEC,
 915         TCA_PIE_TARGET,
 916         TCA_PIE_LIMIT,
 917         TCA_PIE_TUPDATE,
 918         TCA_PIE_ALPHA,
 919         TCA_PIE_BETA,
 920         TCA_PIE_ECN,
 921         TCA_PIE_BYTEMODE,
 922         __TCA_PIE_MAX
 923 };
 924 #define TCA_PIE_MAX   (__TCA_PIE_MAX - 1)
 925
 926 struct tc_pie_xstats {
 927         __u32 prob;             /* current probability */
 928         __u32 delay;            /* current delay in ms */
 929         __u32 avg_dq_rate;      /* current average dq_rate in bits/pie_time */
 930         __u32 packets_in;       /* total number of packets enqueued */
 931         __u32 dropped;          /* packets dropped due to pie_action */
 932         __u32 overlimit;        /* dropped due to lack of space in queue */
 933         __u32 maxq;             /* maximum queue size */
 934         __u32 ecn_mark;         /* packets marked with ecn*/
 935 };
 936
 937 /* CBS */
 938 struct tc_cbs_qopt {
 939         __u8 offload;
 940         __u8 _pad[3];
 941         __s32 hicredit;
 942         __s32 locredit;
 943         __s32 idleslope;
 944         __s32 sendslope;
 945 };
 946
 947 enum {
 948         TCA_CBS_UNSPEC,
 949         TCA_CBS_PARMS,
 950         __TCA_CBS_MAX,
 951 };
 952
 953 #define TCA_CBS_MAX (__TCA_CBS_MAX - 1)
 954
 955
 956 /* ETF */
 957 struct tc_etf_qopt {
 958         __s32 delta;
 959         __s32 clockid;
 960         __u32 flags;
 961 #define TC_ETF_DEADLINE_MODE_ON BIT(0)
 962 #define TC_ETF_OFFLOAD_ON       BIT(1)
 963 };
 964
 965 enum {
 966         TCA_ETF_UNSPEC,
 967         TCA_ETF_PARMS,
 968         __TCA_ETF_MAX,
 969 };
 970
 971 #define TCA_ETF_MAX (__TCA_ETF_MAX - 1)
 972
 973
 974 /* CAKE */
 975 enum {
 976         TCA_CAKE_UNSPEC,
 977         TCA_CAKE_PAD,
 978         TCA_CAKE_BASE_RATE64,
 979         TCA_CAKE_DIFFSERV_MODE,
 980         TCA_CAKE_ATM,
 981         TCA_CAKE_FLOW_MODE,
 982         TCA_CAKE_OVERHEAD,
 983         TCA_CAKE_RTT,
 984         TCA_CAKE_TARGET,
 985         TCA_CAKE_AUTORATE,
 986         TCA_CAKE_MEMORY,
 987         TCA_CAKE_NAT,
 988         TCA_CAKE_RAW,
 989         TCA_CAKE_WASH,
 990         TCA_CAKE_MPU,
 991         TCA_CAKE_INGRESS,
 992         TCA_CAKE_ACK_FILTER,
 993         TCA_CAKE_SPLIT_GSO,
 994         __TCA_CAKE_MAX
 995 };
 996 #define TCA_CAKE_MAX    (__TCA_CAKE_MAX - 1)
 997
 998 enum {
 999         __TCA_CAKE_STATS_INVALID,
1000         TCA_CAKE_STATS_PAD,
1001         TCA_CAKE_STATS_CAPACITY_ESTIMATE64,
1002         TCA_CAKE_STATS_MEMORY_LIMIT,
1003         TCA_CAKE_STATS_MEMORY_USED,
1004         TCA_CAKE_STATS_AVG_NETOFF,
1005         TCA_CAKE_STATS_MIN_NETLEN,
1006         TCA_CAKE_STATS_MAX_NETLEN,
1007         TCA_CAKE_STATS_MIN_ADJLEN,
1008         TCA_CAKE_STATS_MAX_ADJLEN,
1009         TCA_CAKE_STATS_TIN_STATS,
1010         TCA_CAKE_STATS_DEFICIT,
1011         TCA_CAKE_STATS_COBALT_COUNT,
1012         TCA_CAKE_STATS_DROPPING,
1013         TCA_CAKE_STATS_DROP_NEXT_US,
1014         TCA_CAKE_STATS_P_DROP,
1015         TCA_CAKE_STATS_BLUE_TIMER_US,
1016         __TCA_CAKE_STATS_MAX
1017 };
1018 #define TCA_CAKE_STATS_MAX (__TCA_CAKE_STATS_MAX - 1)
1019
1020 enum {
1021         __TCA_CAKE_TIN_STATS_INVALID,
1022         TCA_CAKE_TIN_STATS_PAD,
1023         TCA_CAKE_TIN_STATS_SENT_PACKETS,
1024         TCA_CAKE_TIN_STATS_SENT_BYTES64,
1025         TCA_CAKE_TIN_STATS_DROPPED_PACKETS,
1026         TCA_CAKE_TIN_STATS_DROPPED_BYTES64,
1027         TCA_CAKE_TIN_STATS_ACKS_DROPPED_PACKETS,
1028         TCA_CAKE_TIN_STATS_ACKS_DROPPED_BYTES64,
1029         TCA_CAKE_TIN_STATS_ECN_MARKED_PACKETS,
1030         TCA_CAKE_TIN_STATS_ECN_MARKED_BYTES64,
1031         TCA_CAKE_TIN_STATS_BACKLOG_PACKETS,
1032         TCA_CAKE_TIN_STATS_BACKLOG_BYTES,
1033         TCA_CAKE_TIN_STATS_THRESHOLD_RATE64,
1034         TCA_CAKE_TIN_STATS_TARGET_US,
1035         TCA_CAKE_TIN_STATS_INTERVAL_US,
1036         TCA_CAKE_TIN_STATS_WAY_INDIRECT_HITS,
1037         TCA_CAKE_TIN_STATS_WAY_MISSES,
1038         TCA_CAKE_TIN_STATS_WAY_COLLISIONS,
1039         TCA_CAKE_TIN_STATS_PEAK_DELAY_US,
1040         TCA_CAKE_TIN_STATS_AVG_DELAY_US,
1041         TCA_CAKE_TIN_STATS_BASE_DELAY_US,
1042         TCA_CAKE_TIN_STATS_SPARSE_FLOWS,
1043         TCA_CAKE_TIN_STATS_BULK_FLOWS,
1044         TCA_CAKE_TIN_STATS_UNRESPONSIVE_FLOWS,
1045         TCA_CAKE_TIN_STATS_MAX_SKBLEN,
1046         TCA_CAKE_TIN_STATS_FLOW_QUANTUM,
1047         __TCA_CAKE_TIN_STATS_MAX
1048 };
1049 #define TCA_CAKE_TIN_STATS_MAX (__TCA_CAKE_TIN_STATS_MAX - 1)
1050 #define TC_CAKE_MAX_TINS (8)
1051
1052 enum {
1053         CAKE_FLOW_NONE = 0,
1054         CAKE_FLOW_SRC_IP,
1055         CAKE_FLOW_DST_IP,
1056         CAKE_FLOW_HOSTS,    /* = CAKE_FLOW_SRC_IP | CAKE_FLOW_DST_IP */
1057         CAKE_FLOW_FLOWS,
1058         CAKE_FLOW_DUAL_SRC, /* = CAKE_FLOW_SRC_IP | CAKE_FLOW_FLOWS */
1059         CAKE_FLOW_DUAL_DST, /* = CAKE_FLOW_DST_IP | CAKE_FLOW_FLOWS */
1060         CAKE_FLOW_TRIPLE,   /* = CAKE_FLOW_HOSTS  | CAKE_FLOW_FLOWS */
1061         CAKE_FLOW_MAX,
1062 };
1063
1064 enum {
1065         CAKE_DIFFSERV_DIFFSERV3 = 0,
1066         CAKE_DIFFSERV_DIFFSERV4,
1067         CAKE_DIFFSERV_DIFFSERV8,
1068         CAKE_DIFFSERV_BESTEFFORT,
1069         CAKE_DIFFSERV_PRECEDENCE,
1070         CAKE_DIFFSERV_MAX
1071 };
1072
1073 enum {
1074         CAKE_ACK_NONE = 0,
1075         CAKE_ACK_FILTER,
1076         CAKE_ACK_AGGRESSIVE,
1077         CAKE_ACK_MAX
1078 };
1079
1080 enum {
1081         CAKE_ATM_NONE = 0,
1082         CAKE_ATM_ATM,
1083         CAKE_ATM_PTM,
1084         CAKE_ATM_MAX
1085 };
1086
1087 #endif