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 #define FQ_CODEL_QUANTUM_MAX (1 << 20)
783 
784 enum {
785 	TCA_FQ_CODEL_UNSPEC,
786 	TCA_FQ_CODEL_TARGET,
787 	TCA_FQ_CODEL_LIMIT,
788 	TCA_FQ_CODEL_INTERVAL,
789 	TCA_FQ_CODEL_ECN,
790 	TCA_FQ_CODEL_FLOWS,
791 	TCA_FQ_CODEL_QUANTUM,
792 	TCA_FQ_CODEL_CE_THRESHOLD,
793 	TCA_FQ_CODEL_DROP_BATCH_SIZE,
794 	TCA_FQ_CODEL_MEMORY_LIMIT,
795 	__TCA_FQ_CODEL_MAX
796 };
797 
798 #define TCA_FQ_CODEL_MAX	(__TCA_FQ_CODEL_MAX - 1)
799 
800 enum {
801 	TCA_FQ_CODEL_XSTATS_QDISC,
802 	TCA_FQ_CODEL_XSTATS_CLASS,
803 };
804 
805 struct tc_fq_codel_qd_stats {
806 	__u32	maxpacket;	/* largest packet we've seen so far */
807 	__u32	drop_overlimit; /* number of time max qdisc
808 				 * packet limit was hit
809 				 */
810 	__u32	ecn_mark;	/* number of packets we ECN marked
811 				 * instead of being dropped
812 				 */
813 	__u32	new_flow_count; /* number of time packets
814 				 * created a 'new flow'
815 				 */
816 	__u32	new_flows_len;	/* count of flows in new list */
817 	__u32	old_flows_len;	/* count of flows in old list */
818 	__u32	ce_mark;	/* packets above ce_threshold */
819 	__u32	memory_usage;	/* in bytes */
820 	__u32	drop_overmemory;
821 };
822 
823 struct tc_fq_codel_cl_stats {
824 	__s32	deficit;
825 	__u32	ldelay;		/* in-queue delay seen by most recently
826 				 * dequeued packet
827 				 */
828 	__u32	count;
829 	__u32	lastcount;
830 	__u32	dropping;
831 	__s32	drop_next;
832 };
833 
834 struct tc_fq_codel_xstats {
835 	__u32	type;
836 	union {
837 		struct tc_fq_codel_qd_stats qdisc_stats;
838 		struct tc_fq_codel_cl_stats class_stats;
839 	};
840 };
841 
842 /* FQ */
843 
844 enum {
845 	TCA_FQ_UNSPEC,
846 
847 	TCA_FQ_PLIMIT,		/* limit of total number of packets in queue */
848 
849 	TCA_FQ_FLOW_PLIMIT,	/* limit of packets per flow */
850 
851 	TCA_FQ_QUANTUM,		/* RR quantum */
852 
853 	TCA_FQ_INITIAL_QUANTUM,		/* RR quantum for new flow */
854 
855 	TCA_FQ_RATE_ENABLE,	/* enable/disable rate limiting */
856 
857 	TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
858 
859 	TCA_FQ_FLOW_MAX_RATE,	/* per flow max rate */
860 
861 	TCA_FQ_BUCKETS_LOG,	/* log2(number of buckets) */
862 
863 	TCA_FQ_FLOW_REFILL_DELAY,	/* flow credit refill delay in usec */
864 
865 	TCA_FQ_ORPHAN_MASK,	/* mask applied to orphaned skb hashes */
866 
867 	TCA_FQ_LOW_RATE_THRESHOLD, /* per packet delay under this rate */
868 
869 	__TCA_FQ_MAX
870 };
871 
872 #define TCA_FQ_MAX	(__TCA_FQ_MAX - 1)
873 
874 struct tc_fq_qd_stats {
875 	__u64	gc_flows;
876 	__u64	highprio_packets;
877 	__u64	tcp_retrans;
878 	__u64	throttled;
879 	__u64	flows_plimit;
880 	__u64	pkts_too_long;
881 	__u64	allocation_errors;
882 	__s64	time_next_delayed_flow;
883 	__u32	flows;
884 	__u32	inactive_flows;
885 	__u32	throttled_flows;
886 	__u32	unthrottle_latency_ns;
887 };
888 
889 /* Heavy-Hitter Filter */
890 
891 enum {
892 	TCA_HHF_UNSPEC,
893 	TCA_HHF_BACKLOG_LIMIT,
894 	TCA_HHF_QUANTUM,
895 	TCA_HHF_HH_FLOWS_LIMIT,
896 	TCA_HHF_RESET_TIMEOUT,
897 	TCA_HHF_ADMIT_BYTES,
898 	TCA_HHF_EVICT_TIMEOUT,
899 	TCA_HHF_NON_HH_WEIGHT,
900 	__TCA_HHF_MAX
901 };
902 
903 #define TCA_HHF_MAX	(__TCA_HHF_MAX - 1)
904 
905 struct tc_hhf_xstats {
906 	__u32	drop_overlimit; /* number of times max qdisc packet limit
907 				 * was hit
908 				 */
909 	__u32	hh_overlimit;   /* number of times max heavy-hitters was hit */
910 	__u32	hh_tot_count;   /* number of captured heavy-hitters so far */
911 	__u32	hh_cur_count;   /* number of current heavy-hitters */
912 };
913 
914 /* PIE */
915 enum {
916 	TCA_PIE_UNSPEC,
917 	TCA_PIE_TARGET,
918 	TCA_PIE_LIMIT,
919 	TCA_PIE_TUPDATE,
920 	TCA_PIE_ALPHA,
921 	TCA_PIE_BETA,
922 	TCA_PIE_ECN,
923 	TCA_PIE_BYTEMODE,
924 	__TCA_PIE_MAX
925 };
926 #define TCA_PIE_MAX   (__TCA_PIE_MAX - 1)
927 
928 struct tc_pie_xstats {
929 	__u32 prob;             /* current probability */
930 	__u32 delay;            /* current delay in ms */
931 	__u32 avg_dq_rate;      /* current average dq_rate in bits/pie_time */
932 	__u32 packets_in;       /* total number of packets enqueued */
933 	__u32 dropped;          /* packets dropped due to pie_action */
934 	__u32 overlimit;        /* dropped due to lack of space in queue */
935 	__u32 maxq;             /* maximum queue size */
936 	__u32 ecn_mark;         /* packets marked with ecn*/
937 };
938 
939 /* CBS */
940 struct tc_cbs_qopt {
941 	__u8 offload;
942 	__u8 _pad[3];
943 	__s32 hicredit;
944 	__s32 locredit;
945 	__s32 idleslope;
946 	__s32 sendslope;
947 };
948 
949 enum {
950 	TCA_CBS_UNSPEC,
951 	TCA_CBS_PARMS,
952 	__TCA_CBS_MAX,
953 };
954 
955 #define TCA_CBS_MAX (__TCA_CBS_MAX - 1)
956 
957 
958 /* ETF */
959 struct tc_etf_qopt {
960 	__s32 delta;
961 	__s32 clockid;
962 	__u32 flags;
963 #define TC_ETF_DEADLINE_MODE_ON	BIT(0)
964 #define TC_ETF_OFFLOAD_ON	BIT(1)
965 };
966 
967 enum {
968 	TCA_ETF_UNSPEC,
969 	TCA_ETF_PARMS,
970 	__TCA_ETF_MAX,
971 };
972 
973 #define TCA_ETF_MAX (__TCA_ETF_MAX - 1)
974 
975 
976 /* CAKE */
977 enum {
978 	TCA_CAKE_UNSPEC,
979 	TCA_CAKE_PAD,
980 	TCA_CAKE_BASE_RATE64,
981 	TCA_CAKE_DIFFSERV_MODE,
982 	TCA_CAKE_ATM,
983 	TCA_CAKE_FLOW_MODE,
984 	TCA_CAKE_OVERHEAD,
985 	TCA_CAKE_RTT,
986 	TCA_CAKE_TARGET,
987 	TCA_CAKE_AUTORATE,
988 	TCA_CAKE_MEMORY,
989 	TCA_CAKE_NAT,
990 	TCA_CAKE_RAW,
991 	TCA_CAKE_WASH,
992 	TCA_CAKE_MPU,
993 	TCA_CAKE_INGRESS,
994 	TCA_CAKE_ACK_FILTER,
995 	TCA_CAKE_SPLIT_GSO,
996 	__TCA_CAKE_MAX
997 };
998 #define TCA_CAKE_MAX	(__TCA_CAKE_MAX - 1)
999 
1000 enum {
1001 	__TCA_CAKE_STATS_INVALID,
1002 	TCA_CAKE_STATS_PAD,
1003 	TCA_CAKE_STATS_CAPACITY_ESTIMATE64,
1004 	TCA_CAKE_STATS_MEMORY_LIMIT,
1005 	TCA_CAKE_STATS_MEMORY_USED,
1006 	TCA_CAKE_STATS_AVG_NETOFF,
1007 	TCA_CAKE_STATS_MIN_NETLEN,
1008 	TCA_CAKE_STATS_MAX_NETLEN,
1009 	TCA_CAKE_STATS_MIN_ADJLEN,
1010 	TCA_CAKE_STATS_MAX_ADJLEN,
1011 	TCA_CAKE_STATS_TIN_STATS,
1012 	TCA_CAKE_STATS_DEFICIT,
1013 	TCA_CAKE_STATS_COBALT_COUNT,
1014 	TCA_CAKE_STATS_DROPPING,
1015 	TCA_CAKE_STATS_DROP_NEXT_US,
1016 	TCA_CAKE_STATS_P_DROP,
1017 	TCA_CAKE_STATS_BLUE_TIMER_US,
1018 	__TCA_CAKE_STATS_MAX
1019 };
1020 #define TCA_CAKE_STATS_MAX (__TCA_CAKE_STATS_MAX - 1)
1021 
1022 enum {
1023 	__TCA_CAKE_TIN_STATS_INVALID,
1024 	TCA_CAKE_TIN_STATS_PAD,
1025 	TCA_CAKE_TIN_STATS_SENT_PACKETS,
1026 	TCA_CAKE_TIN_STATS_SENT_BYTES64,
1027 	TCA_CAKE_TIN_STATS_DROPPED_PACKETS,
1028 	TCA_CAKE_TIN_STATS_DROPPED_BYTES64,
1029 	TCA_CAKE_TIN_STATS_ACKS_DROPPED_PACKETS,
1030 	TCA_CAKE_TIN_STATS_ACKS_DROPPED_BYTES64,
1031 	TCA_CAKE_TIN_STATS_ECN_MARKED_PACKETS,
1032 	TCA_CAKE_TIN_STATS_ECN_MARKED_BYTES64,
1033 	TCA_CAKE_TIN_STATS_BACKLOG_PACKETS,
1034 	TCA_CAKE_TIN_STATS_BACKLOG_BYTES,
1035 	TCA_CAKE_TIN_STATS_THRESHOLD_RATE64,
1036 	TCA_CAKE_TIN_STATS_TARGET_US,
1037 	TCA_CAKE_TIN_STATS_INTERVAL_US,
1038 	TCA_CAKE_TIN_STATS_WAY_INDIRECT_HITS,
1039 	TCA_CAKE_TIN_STATS_WAY_MISSES,
1040 	TCA_CAKE_TIN_STATS_WAY_COLLISIONS,
1041 	TCA_CAKE_TIN_STATS_PEAK_DELAY_US,
1042 	TCA_CAKE_TIN_STATS_AVG_DELAY_US,
1043 	TCA_CAKE_TIN_STATS_BASE_DELAY_US,
1044 	TCA_CAKE_TIN_STATS_SPARSE_FLOWS,
1045 	TCA_CAKE_TIN_STATS_BULK_FLOWS,
1046 	TCA_CAKE_TIN_STATS_UNRESPONSIVE_FLOWS,
1047 	TCA_CAKE_TIN_STATS_MAX_SKBLEN,
1048 	TCA_CAKE_TIN_STATS_FLOW_QUANTUM,
1049 	__TCA_CAKE_TIN_STATS_MAX
1050 };
1051 #define TCA_CAKE_TIN_STATS_MAX (__TCA_CAKE_TIN_STATS_MAX - 1)
1052 #define TC_CAKE_MAX_TINS (8)
1053 
1054 enum {
1055 	CAKE_FLOW_NONE = 0,
1056 	CAKE_FLOW_SRC_IP,
1057 	CAKE_FLOW_DST_IP,
1058 	CAKE_FLOW_HOSTS,    /* = CAKE_FLOW_SRC_IP | CAKE_FLOW_DST_IP */
1059 	CAKE_FLOW_FLOWS,
1060 	CAKE_FLOW_DUAL_SRC, /* = CAKE_FLOW_SRC_IP | CAKE_FLOW_FLOWS */
1061 	CAKE_FLOW_DUAL_DST, /* = CAKE_FLOW_DST_IP | CAKE_FLOW_FLOWS */
1062 	CAKE_FLOW_TRIPLE,   /* = CAKE_FLOW_HOSTS  | CAKE_FLOW_FLOWS */
1063 	CAKE_FLOW_MAX,
1064 };
1065 
1066 enum {
1067 	CAKE_DIFFSERV_DIFFSERV3 = 0,
1068 	CAKE_DIFFSERV_DIFFSERV4,
1069 	CAKE_DIFFSERV_DIFFSERV8,
1070 	CAKE_DIFFSERV_BESTEFFORT,
1071 	CAKE_DIFFSERV_PRECEDENCE,
1072 	CAKE_DIFFSERV_MAX
1073 };
1074 
1075 enum {
1076 	CAKE_ACK_NONE = 0,
1077 	CAKE_ACK_FILTER,
1078 	CAKE_ACK_AGGRESSIVE,
1079 	CAKE_ACK_MAX
1080 };
1081 
1082 enum {
1083 	CAKE_ATM_NONE = 0,
1084 	CAKE_ATM_ATM,
1085 	CAKE_ATM_PTM,
1086 	CAKE_ATM_MAX
1087 };
1088 
1089 #endif
1090