aboutsummaryrefslogtreecommitdiffstats
path: root/include/uapi/linux/pkt_sched.h
blob: af3cc2f4e1ad00dff0e011a4e94e0905d085d0ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_PKT_SCHED_H
#define __LINUX_PKT_SCHED_H

#include <linux/types.h>

/* Logical priority bands not depending on specific packet scheduler.
   Every scheduler will map them to real traffic classes, if it has
   no more precise mechanism to classify packets.

   These numbers have no special meaning, though their coincidence
   with obsolete IPv6 values is not occasional :-). New IPv6 drafts
   preferred full anarchy inspired by diffserv group.

   Note: TC_PRIO_BESTEFFORT does not mean that it is the most unhappy
   class, actually, as rule it will be handled with more care than
   filler or even bulk.
 */

#define TC_PRIO_BESTEFFORT		0
#define TC_PRIO_FILLER			1
#define TC_PRIO_BULK			2
#define TC_PRIO_INTERACTIVE_BULK	4
#define TC_PRIO_INTERACTIVE		6
#define TC_PRIO_CONTROL			7

#define TC_PRIO_MAX			15

/* Generic queue statistics, available for all the elements.
   Particular schedulers may have also their private records.
 */

struct tc_stats {
	__u64	bytes;			/* Number of enqueued bytes */
	__u32	packets;		/* Number of enqueued packets	*/
	__u32	drops;			/* Packets dropped because of lack of resources */
	__u32	overlimits;		/* Number of throttle events when this
					 * flow goes out of allocated bandwidth */
	__u32	bps;			/* Current flow byte rate */
	__u32	pps;			/* Current flow packet rate */
	__u32	qlen;
	__u32	backlog;
};

struct tc_estimator {
	signed char	interval;
	unsigned char	ewma_log;
};

/* "Handles"
   ---------

    All the traffic control objects have 32bit identifiers, or "handles".

    They can be considered as opaque numbers from user API viewpoint,
    but actually they always consist of two fields: major and
    minor numbers, which are interpreted by kernel specially,
    that may be used by applications, though not recommended.

    F.e. qdisc handles always have minor number equal to zero,
    classes (or flows) have major equal to parent qdisc major, and
    minor uniquely identifying class inside qdisc.

    Macros to manipulate handles:
 */

#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))

#define TC_H_UNSPEC	(0U)
#define TC_H_ROOT	(0xFFFFFFFFU)
#define TC_H_INGRESS    (0xFFFFFFF1U)
#define TC_H_CLSACT	TC_H_INGRESS

#define TC_H_MIN_PRIORITY	0xFFE0U
#define TC_H_MIN_INGRESS	0xFFF2U
#define TC_H_MIN_EGRESS		0xFFF3U

/* Need to corrospond to iproute2 tc/tc_core.h "enum link_layer" */
enum tc_link_layer {
	TC_LINKLAYER_UNAWARE, /* Indicate unaware old iproute2 util */
	TC_LINKLAYER_ETHERNET,
	TC_LINKLAYER_ATM,
};
#define TC_LINKLAYER_MASK 0x0F /* limit use to lower 4 bits */

struct tc_ratespec {
	unsigned char	cell_log;
	__u8		linklayer; /* lower 4 bits */
	unsigned short	overhead;
	short		cell_align;
	unsigned short	mpu;
	__u32		rate;
};

#define TC_RTAB_SIZE	1024

struct tc_sizespec {
	unsigned char	cell_log;
	unsigned char	size_log;
	short		cell_align;
	int		overhead;
	unsigned int	linklayer;
	unsigned int	mpu;
	unsigned int	mtu;
	unsigned int	tsize;
};

enum {
	TCA_STAB_UNSPEC,
	TCA_STAB_BASE,
	TCA_STAB_DATA,
	__TCA_STAB_MAX
};

#define TCA_STAB_MAX (__TCA_STAB_MAX - 1)

/* FIFO section */

struct tc_fifo_qopt {
	__u32	limit;	/* Queue length: bytes for bfifo, packets for pfifo */
};

/* PRIO section */

#define TCQ_PRIO_BANDS	16
#define TCQ_MIN_PRIO_BANDS 2

struct tc_prio_qopt {
	int	bands;			/* Number of bands */
	__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
};

/* MULTIQ section */

struct tc_multiq_qopt {
	__u16	bands;			/* Number of bands */
	__u16	max_bands;		/* Maximum number of queues */
};

/* PLUG section */

#define TCQ_PLUG_BUFFER                0
#define TCQ_PLUG_RELEASE_ONE           1
#define TCQ_PLUG_RELEASE_INDEFINITE    2
#define TCQ_PLUG_LIMIT                 3

struct tc_plug_qopt {
	/* TCQ_PLUG_BUFFER: Inset a plug into the queue and
	 *  buffer any incoming packets
	 * TCQ_PLUG_RELEASE_ONE: Dequeue packets from queue head
	 *   to beginning of the next plug.
	 * TCQ_PLUG_RELEASE_INDEFINITE: Dequeue all packets from queue.
	 *   Stop buffering packets until the next TCQ_PLUG_BUFFER
	 *   command is received (just act as a pass-thru queue).
	 * TCQ_PLUG_LIMIT: Increase/decrease queue size
	 */
	int             action;
	__u32           limit;
};

/* TBF section */

struct tc_tbf_qopt {
	struct tc_ratespec rate;
	struct tc_ratespec peakrate;
	__u32		limit;
	__u32		buffer;
	__u32		mtu;
};

enum {
	TCA_TBF_UNSPEC,
	TCA_TBF_PARMS,
	TCA_TBF_RTAB,
	TCA_TBF_PTAB,
	TCA_TBF_RATE64,
	TCA_TBF_PRATE64,
	TCA_TBF_BURST,
	TCA_TBF_PBURST,
	TCA_TBF_PAD,
	__TCA_TBF_MAX,
};

#define TCA_TBF_MAX (__TCA_TBF_MAX - 1)


/* TEQL section */

/* TEQL does not require any parameters */

/* SFQ section */

struct tc_sfq_qopt {
	unsigned	quantum;	/* Bytes per round allocated to flow */
	int		perturb_period;	/* Period of hash perturbation */
	__u32		limit;		/* Maximal packets in queue */
	unsigned	divisor;	/* Hash divisor  */
	unsigned	flows;		/* Maximal number of flows  */
};

struct tc_sfqred_stats {
	__u32           prob_drop;      /* Early drops, below max threshold */
	__u32           forced_drop;	/* Early drops, after max threshold */
	__u32           prob_mark;      /* Marked packets, below max threshold */
	__u32           forced_mark;    /* Marked packets, after max threshold */
	__u32           prob_mark_head; /* Marked packets, below max threshold */
	__u32           forced_mark_head;/* Marked packets, after max threshold */
};

struct tc_sfq_qopt_v1 {
	struct tc_sfq_qopt v0;
	unsigned int	depth;		/* max number of packets per flow */
	unsigned int	headdrop;
/* SFQRED parameters */
	__u32		limit;		/* HARD maximal flow queue length (bytes) */
	__u32		qth_min;	/* Min average length threshold (bytes) */
	__u32		qth_max;	/* Max average length threshold (bytes) */
	unsigned char   Wlog;		/* log(W)		*/
	unsigned char   Plog;		/* log(P_max/(qth_max-qth_min))	*/
	unsigned char   Scell_log;	/* cell size for idle damping */
	unsigned char	flags;
	__u32		max_P;		/* probability, high resolution */
/* SFQRED stats */
	struct tc_sfqred_stats stats;
};


struct tc_sfq_xstats {
	__s32		allot;
};

/* RED section */

enum {
	TCA_RED_UNSPEC,
	TCA_RED_PARMS,
	TCA_RED_STAB,
	TCA_RED_MAX_P,
	__TCA_RED_MAX,
};

#define TCA_RED_MAX (__TCA_RED_MAX - 1)

struct tc_red_qopt {
	__u32		limit;		/* HARD maximal queue length (bytes)	*/
	__u32		qth_min;	/* Min average length threshold (bytes) */
	__u32		qth_max;	/* Max average length threshold (bytes) */
	unsigned char   Wlog;		/* log(W)		*/
	unsigned char   Plog;		/* log(P_max/(qth_max-qth_min))	*/
	unsigned char   Scell_log;	/* cell size for idle damping */
	unsigned char	flags;
#define TC_RED_ECN		1
#define TC_RED_HARDDROP		2
#define TC_RED_ADAPTATIVE	4
#define TC_RED_OFFLOADED	8
};

struct tc_red_xstats {
	__u32           early;          /* Early drops */
	__u32           pdrop;          /* Drops due to queue limits */
	__u32           other;          /* Drops due to drop() calls */
	__u32           marked;         /* Marked packets */
};

/* GRED section */

#define MAX_DPs 16

enum {
       TCA_GRED_UNSPEC,
       TCA_GRED_PARMS,
       TCA_GRED_STAB,
       TCA_GRED_DPS,
       TCA_GRED_MAX_P,
       TCA_GRED_LIMIT,
       __TCA_GRED_MAX,
};

#define TCA_GRED_MAX (__TCA_GRED_MAX - 1)

struct tc_gred_qopt {
	__u32		limit;        /* HARD maximal queue length (bytes)    */
	__u32		qth_min;      /* Min average length threshold (bytes) */
	__u32		qth_max;      /* Max average length threshold (bytes) */
	__u32		DP;           /* up to 2^32 DPs */
	__u32		backlog;
	__u32		qave;
	__u32		forced;
	__u32		early;
	__u32		other;
	__u32		pdrop;
	__u8		Wlog;         /* log(W)               */
	__u8		Plog;         /* log(P_max/(qth_max-qth_min)) */
	__u8		Scell_log;    /* cell size for idle damping */
	__u8		prio;         /* prio of this VQ */
	__u32		packets;
	__u32		bytesin;
};

/* gred setup */
struct tc_gred_sopt {
	__u32		DPs;
	__u32		def_DP;
	__u8		grio;
	__u8		flags;
	__u16		pad1;
};

/* CHOKe section */

enum {
	TCA_CHOKE_UNSPEC,
	TCA_CHOKE_PARMS,
	TCA_CHOKE_STAB,
	TCA_CHOKE_MAX_P,
	__TCA_CHOKE_MAX,
};

#define TCA_CHOKE_MAX (__TCA_CHOKE_MAX - 1)

struct tc_choke_qopt {
	__u32		limit;		/* Hard queue length (packets)	*/
	__u32		qth_min;	/* Min average threshold (packets) */
	__u32		qth_max;	/* Max average threshold (packets) */
	unsigned char   Wlog;		/* log(W)		*/
	unsigned char   Plog;		/* log(P_max/(qth_max-qth_min))	*/
	unsigned char   Scell_log;	/* cell size for idle damping */
	unsigned char	flags;		/* see RED flags */
};

struct tc_choke_xstats {
	__u32		early;          /* Early drops */
	__u32		pdrop;          /* Drops due to queue limits */
	__u32		other;          /* Drops due to drop() calls */
	__u32		marked;         /* Marked packets */
	__u32		matched;	/* Drops due to flow match */
};

/* HTB section */
#define TC_HTB_NUMPRIO		8
#define TC_HTB_MAXDEPTH		8
#define TC_HTB_PROTOVER		3 /* the same as HTB and TC's major */

struct tc_htb_opt {
	struct tc_ratespec 	rate;
	struct tc_ratespec 	ceil;
	__u32	buffer;
	__u32	cbuffer;
	__u32	quantum;
	__u32	level;		/* out only */
	__u32	prio;
};
struct tc_htb_glob {
	__u32 version;		/* to match HTB/TC */
    	__u32 rate2quantum;	/* bps->quantum divisor */
    	__u32 defcls;		/* default class number */
	__u32 debug;		/* debug flags */

	/* stats */
	__u32 direct_pkts; /* count of non shaped packets */
};
enum {
	TCA_HTB_UNSPEC,
	TCA_HTB_PARMS,
	TCA_HTB_INIT,
	TCA_HTB_CTAB,
	TCA_HTB_RTAB,
	TCA_HTB_DIRECT_QLEN,
	TCA_HTB_RATE64,
	TCA_HTB_CEIL64,
	TCA_HTB_PAD,
	__TCA_HTB_MAX,
};

#define TCA_HTB_MAX (__TCA_HTB_MAX - 1)

struct tc_htb_xstats {
	__u32 lends;
	__u32 borrows;
	__u32 giants;	/* too big packets (rate will not be accurate) */
	__u32 tokens;
	__u32 ctokens;
};

/* HFSC section */

struct tc_hfsc_qopt {
	__u16	defcls;		/* default class */
};

struct tc_service_curve {
	__u32	m1;		/* slope of the first segment in bps */
	__u32	d;		/* x-projection of the first segment in us */
	__u32	m2;		/* slope of the second segment in bps */
};

struct tc_hfsc_stats {
	__u64	work;		/* total work done */
	__u64	rtwork;		/* work done by real-time criteria */
	__u32	period;		/* current period */
	__u32	level;		/* class level in hierarchy */
};

enum {
	TCA_HFSC_UNSPEC,
	TCA_HFSC_RSC,
	TCA_HFSC_FSC,
	TCA_HFSC_USC,
	__TCA_HFSC_MAX,
};

#define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)


/* CBQ section */

#define TC_CBQ_MAXPRIO		8
#define TC_CBQ_MAXLEVEL		8
#define TC_CBQ_DEF_EWMA		5

struct tc_cbq_lssopt {
	unsigned char	change;
	unsigned char	flags;
#define TCF_CBQ_LSS_BOUNDED	1
#define TCF_CBQ_LSS_ISOLATED	2
	unsigned char  	ewma_log;
	unsigned char  	level;
#define TCF_CBQ_LSS_FLAGS	1
#define TCF_CBQ_LSS_EWMA	2
#define TCF_CBQ_LSS_MAXIDLE	4
#define TCF_CBQ_LSS_MINIDLE	8
#define TCF_CBQ_LSS_OFFTIME	0x10
#define TCF_CBQ_LSS_AVPKT	0x20
	__u32		maxidle;
	__u32		minidle;
	__u32		offtime;
	__u32		avpkt;
};

struct tc_cbq_wrropt {
	unsigned char	flags;
	unsigned char	priority;
	unsigned char	cpriority;
	unsigned char	__reserved;
	__u32		allot;
	__u32		weight;
};

struct tc_cbq_ovl {
	unsigned char	strategy;
#define	TC_CBQ_OVL_CLASSIC	0
#define	TC_CBQ_OVL_DELAY	1
#define	TC_CBQ_OVL_LOWPRIO	2
#define	TC_CBQ_OVL_DROP		3
#define	TC_CBQ_OVL_RCLASSIC	4
	unsigned char	priority2;
	__u16		pad;
	__u32		penalty;
};

struct tc_cbq_police {
	unsigned char	police;
	unsigned char	__res1;
	unsigned short	__res2;
};

struct tc_cbq_fopt {
	__u32		split;
	__u32		defmap;
	__u32		defchange;
};

struct tc_cbq_xstats {
	__u32		borrows;
	__u32		overactions;
	__s32		avgidle;
	__s32		undertime;
};

enum {
	TCA_CBQ_UNSPEC,
	TCA_CBQ_LSSOPT,
	TCA_CBQ_WRROPT,
	TCA_CBQ_FOPT,
	TCA_CBQ_OVL_STRATEGY,
	TCA_CBQ_RATE,
	TCA_CBQ_RTAB,
	TCA_CBQ_POLICE,
	__TCA_CBQ_MAX,
};

#define TCA_CBQ_MAX	(__TCA_CBQ_MAX - 1)

/* dsmark section */

enum {
	TCA_DSMARK_UNSPEC,
	TCA_DSMARK_INDICES,
	TCA_DSMARK_DEFAULT_INDEX,
	TCA_DSMARK_SET_TC_INDEX,
	TCA_DSMARK_MASK,
	TCA_DSMARK_VALUE,
	__TCA_DSMARK_MAX,
};

#define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)

/* ATM  section */

enum {
	TCA_ATM_UNSPEC,
	TCA_ATM_FD,		/* file/socket descriptor */
	TCA_ATM_PTR,		/* pointer to descriptor - later */
	TCA_ATM_HDR,		/* LL header */
	TCA_ATM_EXCESS,		/* excess traffic class (0 for CLP)  */
	TCA_ATM_ADDR,		/* PVC address (for output only) */
	TCA_ATM_STATE,		/* VC state (ATM_VS_*; for output only) */
	__TCA_ATM_MAX,
};

#define TCA_ATM_MAX	(__TCA_ATM_MAX - 1)

/* Network emulator */

enum {
	TCA_NETEM_UNSPEC,
	TCA_NETEM_CORR,
	TCA_NETEM_DELAY_DIST,
	TCA_NETEM_REORDER,
	TCA_NETEM_CORRUPT,
	TCA_NETEM_LOSS,
	TCA_NETEM_RATE,
	TCA_NETEM_ECN,
	TCA_NETEM_RATE64,
	TCA_NETEM_PAD,
	TCA_NETEM_LATENCY64,
	TCA_NETEM_JITTER64,
	TCA_NETEM_SLOT,
	__TCA_NETEM_MAX,
};

#define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)

struct tc_netem_qopt {
	__u32	latency;	/* added delay (us) */
	__u32   limit;		/* fifo limit (packets) */
	__u32	loss;		/* random packet loss (0=none ~0=100%) */
	__u32	gap;		/* re-ordering gap (0 for none) */
	__u32   duplicate;	/* random packet dup  (0=none ~0=100%) */
	__u32	jitter;		/* random jitter in latency (us) */
};

struct tc_netem_corr {
	__u32	delay_corr;	/* delay correlation */
	__u32	loss_corr;	/* packet loss correlation */
	__u32	dup_corr;	/* duplicate correlation  */
};

struct tc_netem_reorder {
	__u32	probability;
	__u32	correlation;
};

struct tc_netem_corrupt {
	__u32	probability;
	__u32	correlation;
};

struct tc_netem_rate {
	__u32	rate;	/* byte/s */
	__s32	packet_overhead;
	__u32	cell_size;
	__s32	cell_overhead;
};

struct tc_netem_slot {
	__s64   min_delay; /* nsec */
	__s64   max_delay;
	__s32   max_packets;
	__s32   max_bytes;
};

enum {
	NETEM_LOSS_UNSPEC,
	NETEM_LOSS_GI,		/* General Intuitive - 4 state model */
	NETEM_LOSS_GE,		/* Gilbert Elliot models */
	__NETEM_LOSS_MAX
};
#define NETEM_LOSS_MAX (__NETEM_LOSS_MAX - 1)

/* State transition probabilities for 4 state model */
struct tc_netem_gimodel {
	__u32	p13;
	__u32	p31;
	__u32	p32;
	__u32	p14;
	__u32	p23;
};

/* Gilbert-Elliot models */
struct tc_netem_gemodel {
	__u32 p;
	__u32 r;
	__u32 h;
	__u32 k1;
};

#define NETEM_DIST_SCALE	8192
#define NETEM_DIST_MAX		16384

/* DRR */

enum {
	TCA_DRR_UNSPEC,
	TCA_DRR_QUANTUM,
	__TCA_DRR_MAX
};

#define TCA_DRR_MAX	(__TCA_DRR_MAX - 1)

struct tc_drr_stats {
	__u32	deficit;
};

/* MQPRIO */
#define TC_QOPT_BITMASK 15
#define TC_QOPT_MAX_QUEUE 16

enum {
	TC_MQPRIO_HW_OFFLOAD_NONE,	/* no offload requested */
	TC_MQPRIO_HW_OFFLOAD_TCS,	/* offload TCs, no queue counts */
	__TC_MQPRIO_HW_OFFLOAD_MAX
};

#define TC_MQPRIO_HW_OFFLOAD_MAX (__TC_MQPRIO_HW_OFFLOAD_MAX - 1)

enum {
	TC_MQPRIO_MODE_DCB,
	TC_MQPRIO_MODE_CHANNEL,
	__TC_MQPRIO_MODE_MAX
};

#define __TC_MQPRIO_MODE_MAX (__TC_MQPRIO_MODE_MAX - 1)

enum {
	TC_MQPRIO_SHAPER_DCB,
	TC_MQPRIO_SHAPER_BW_RATE,	/* Add new shapers below */
	__TC_MQPRIO_SHAPER_MAX
};

#define __TC_MQPRIO_SHAPER_MAX (__TC_MQPRIO_SHAPER_MAX - 1)

struct tc_mqprio_qopt {
	__u8	num_tc;
	__u8	prio_tc_map[TC_QOPT_BITMASK + 1];
	__u8	hw;
	__u16	count[TC_QOPT_MAX_QUEUE];
	__u16	offset[TC_QOPT_MAX_QUEUE];
};

#define TC_MQPRIO_F_MODE		0x1
#define TC_MQPRIO_F_SHAPER		0x2
#define TC_MQPRIO_F_MIN_RATE		0x4
#define TC_MQPRIO_F_MAX_RATE		0x8

enum {
	TCA_MQPRIO_UNSPEC,
	TCA_MQPRIO_MODE,
	TCA_MQPRIO_SHAPER,
	TCA_MQPRIO_MIN_RATE64,
	TCA_MQPRIO_MAX_RATE64,
	__TCA_MQPRIO_MAX,
};

#define TCA_MQPRIO_MAX (__TCA_MQPRIO_MAX - 1)

/* SFB */

enum {
	TCA_SFB_UNSPEC,
	TCA_SFB_PARMS,
	__TCA_SFB_MAX,
};

#define TCA_SFB_MAX (__TCA_SFB_MAX - 1)

/*
 * Note: increment, decrement are Q0.16 fixed-point values.
 */
struct tc_sfb_qopt {
	__u32 rehash_interval;	/* delay between hash move, in ms */
	__u32 warmup_time;	/* double buffering warmup time in ms (warmup_time < rehash_interval) */
	__u32 max;		/* max len of qlen_min */
	__u32 bin_size;		/* maximum queue length per bin */
	__u32 increment;	/* probability increment, (d1 in Blue) */
	__u32 decrement;	/* probability decrement, (d2 in Blue) */
	__u32 limit;		/* max SFB queue length */
	__u32 penalty_rate;	/* inelastic flows are rate limited to 'rate' pps */
	__u32 penalty_burst;
};

struct tc_sfb_xstats {
	__u32 earlydrop;
	__u32 penaltydrop;
	__u32 bucketdrop;
	__u32 queuedrop;
	__u32 childdrop; /* drops in child qdisc */
	__u32 marked;
	__u32 maxqlen;
	__u32 maxprob;
	__u32 avgprob;
};

#define SFB_MAX_PROB 0xFFFF

/* QFQ */
enum {
	TCA_QFQ_UNSPEC,
	TCA_QFQ_WEIGHT,
	TCA_QFQ_LMAX,
	__TCA_QFQ_MAX
};

#define TCA_QFQ_MAX	(__TCA_QFQ_MAX - 1)

struct tc_qfq_stats {
	__u32 weight;
	__u32 lmax;
};

/* CODEL */

enum {
	TCA_CODEL_UNSPEC,
	TCA_CODEL_TARGET,
	TCA_CODEL_LIMIT,
	TCA_CODEL_INTERVAL,
	TCA_CODEL_ECN,
	TCA_CODEL_CE_THRESHOLD,
	__TCA_CODEL_MAX
};

#define TCA_CODEL_MAX	(__TCA_CODEL_MAX - 1)

struct tc_codel_xstats {
	__u32	maxpacket; /* largest packet we've seen so far */
	__u32	count;	   /* how many drops we've done since the last time we
			    * entered dropping state
			    */
	__u32	lastcount; /* count at entry to dropping state */
	__u32	ldelay;    /* in-queue delay seen by most recently dequeued packet */
	__s32	drop_next; /* time to drop next packet */
	__u32	drop_overlimit; /* number of time max qdisc packet limit was hit */
	__u32	ecn_mark;  /* number of packets we ECN marked instead of dropped */
	__u32	dropping;  /* are we in dropping state ? */
	__u32	ce_mark;   /* number of CE marked packets because of ce_threshold */
};

/* FQ_CODEL */

enum {
	TCA_FQ_CODEL_UNSPEC,
	TCA_FQ_CODEL_TARGET,
	TCA_FQ_CODEL_LIMIT,
	TCA_FQ_CODEL_INTERVAL,
	TCA_FQ_CODEL_ECN,
	TCA_FQ_CODEL_FLOWS,
	TCA_FQ_CODEL_QUANTUM,
	TCA_FQ_CODEL_CE_THRESHOLD,
	TCA_FQ_CODEL_DROP_BATCH_SIZE,
	TCA_FQ_CODEL_MEMORY_LIMIT,
	__TCA_FQ_CODEL_MAX
};

#define TCA_FQ_CODEL_MAX	(__TCA_FQ_CODEL_MAX - 1)

enum {
	TCA_FQ_CODEL_XSTATS_QDISC,
	TCA_FQ_CODEL_XSTATS_CLASS,
};

struct tc_fq_codel_qd_stats {
	__u32	maxpacket;	/* largest packet we've seen so far */
	__u32	drop_overlimit; /* number of time max qdisc
				 * packet limit was hit
				 */
	__u32	ecn_mark;	/* number of packets we ECN marked
				 * instead of being dropped
				 */
	__u32	new_flow_count; /* number of time packets
				 * created a 'new flow'
				 */
	__u32	new_flows_len;	/* count of flows in new list */
	__u32	old_flows_len;	/* count of flows in old list */
	__u32	ce_mark;	/* packets above ce_threshold */
	__u32	memory_usage;	/* in bytes */
	__u32	drop_overmemory;
};

struct tc_fq_codel_cl_stats {
	__s32	deficit;
	__u32	ldelay;		/* in-queue delay seen by most recently
				 * dequeued packet
				 */
	__u32	count;
	__u32	lastcount;
	__u32	dropping;
	__s32	drop_next;
};

struct tc_fq_codel_xstats {
	__u32	type;
	union {
		struct tc_fq_codel_qd_stats qdisc_stats;
		struct tc_fq_codel_cl_stats class_stats;
	};
};

/* FQ */

enum {
	TCA_FQ_UNSPEC,

	TCA_FQ_PLIMIT,		/* limit of total number of packets in queue */

	TCA_FQ_FLOW_PLIMIT,	/* limit of packets per flow */

	TCA_FQ_QUANTUM,		/* RR quantum */

	TCA_FQ_INITIAL_QUANTUM,		/* RR quantum for new flow */

	TCA_FQ_RATE_ENABLE,	/* enable/disable rate limiting */

	TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */

	TCA_FQ_FLOW_MAX_RATE,	/* per flow max rate */

	TCA_FQ_BUCKETS_LOG,	/* log2(number of buckets) */

	TCA_FQ_FLOW_REFILL_DELAY,	/* flow credit refill delay in usec */

	TCA_FQ_ORPHAN_MASK,	/* mask applied to orphaned skb hashes */

	TCA_FQ_LOW_RATE_THRESHOLD, /* per packet delay under this rate */

	__TCA_FQ_MAX
};

#define TCA_FQ_MAX	(__TCA_FQ_MAX - 1)

struct tc_fq_qd_stats {
	__u64	gc_flows;
	__u64	highprio_packets;
	__u64	tcp_retrans;
	__u64	throttled;
	__u64	flows_plimit;
	__u64	pkts_too_long;
	__u64	allocation_errors;
	__s64	time_next_delayed_flow;
	__u32	flows;
	__u32	inactive_flows;
	__u32	throttled_flows;
	__u32	unthrottle_latency_ns;
};

/* Heavy-Hitter Filter */

enum {
	TCA_HHF_UNSPEC,
	TCA_HHF_BACKLOG_LIMIT,
	TCA_HHF_QUANTUM,
	TCA_HHF_HH_FLOWS_LIMIT,
	TCA_HHF_RESET_TIMEOUT,
	TCA_HHF_ADMIT_BYTES,
	TCA_HHF_EVICT_TIMEOUT,
	TCA_HHF_NON_HH_WEIGHT,
	__TCA_HHF_MAX
};

#define TCA_HHF_MAX	(__TCA_HHF_MAX - 1)

struct tc_hhf_xstats {
	__u32	drop_overlimit; /* number of times max qdisc packet limit
				 * was hit
				 */
	__u32	hh_overlimit;   /* number of times max heavy-hitters was hit */
	__u32	hh_tot_count;   /* number of captured heavy-hitters so far */
	__u32	hh_cur_count;   /* number of current heavy-hitters */
};

/* PIE */
enum {
	TCA_PIE_UNSPEC,
	TCA_PIE_TARGET,
	TCA_PIE_LIMIT,
	TCA_PIE_TUPDATE,
	TCA_PIE_ALPHA,
	TCA_PIE_BETA,
	TCA_PIE_ECN,
	TCA_PIE_BYTEMODE,
	__TCA_PIE_MAX
};
#define TCA_PIE_MAX   (__TCA_PIE_MAX - 1)

struct tc_pie_xstats {
	__u32 prob;             /* current probability */
	__u32 delay;            /* current delay in ms */
	__u32 avg_dq_rate;      /* current average dq_rate in bits/pie_time */
	__u32 packets_in;       /* total number of packets enqueued */
	__u32 dropped;          /* packets dropped due to pie_action */
	__u32 overlimit;        /* dropped due to lack of space in queue */
	__u32 maxq;             /* maximum queue size */
	__u32 ecn_mark;         /* packets marked with ecn*/
};

/* CBS */
struct tc_cbs_qopt {
	__u8 offload;
	__u8 _pad[3];
	__s32 hicredit;
	__s32 locredit;
	__s32 idleslope;
	__s32 sendslope;
};

enum {
	TCA_CBS_UNSPEC,
	TCA_CBS_PARMS,
	__TCA_CBS_MAX,
};

#define TCA_CBS_MAX (__TCA_CBS_MAX - 1)

#endif

Privacy Policy