[linux-block.git] / include / linux / pkt_sched.h

#ifndef __LINUX_PKT_SCHED_H
#define __LINUX_PKT_SCHED_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 enqueues 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)

struct tc_ratespec
{
	unsigned char	cell_log;
	unsigned char	__reserved;
	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 */
};

/* 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_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_sfq_xstats
{
	__s32		allot;
};

/*
 *  NOTE: limit, divisor and flows are hardwired to code at the moment.
 *
 *	limit=flows=128, divisor=1024;
 *
 *	The only reason for this is efficiency, it is possible
 *	to change these parameters in compile time.
 */

/* RED section */

enum
{
	TCA_RED_UNSPEC,
	TCA_RED_PARMS,
	TCA_RED_STAB,
	__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
};

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,
};

#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;           /* upto 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;
};

/* 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 shapped packets */
};
enum
{
	TCA_HTB_UNSPEC,
	TCA_HTB_PARMS,
	TCA_HTB_INIT,
	TCA_HTB_CTAB,
	TCA_HTB_RTAB,
	__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_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;
};

#define NETEM_DIST_SCALE	8192

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __LINUX_PKT_SCHED_H
	2	#define __LINUX_PKT_SCHED_H
	3
	4	/* Logical priority bands not depending on specific packet scheduler.
	5	Every scheduler will map them to real traffic classes, if it has
	6	no more precise mechanism to classify packets.
	7
	8	These numbers have no special meaning, though their coincidence
	9	with obsolete IPv6 values is not occasional :-). New IPv6 drafts
	10	preferred full anarchy inspired by diffserv group.
	11
	12	Note: TC_PRIO_BESTEFFORT does not mean that it is the most unhappy
	13	class, actually, as rule it will be handled with more care than
	14	filler or even bulk.
	15	*/
	16
	17	#define TC_PRIO_BESTEFFORT 0
	18	#define TC_PRIO_FILLER 1
	19	#define TC_PRIO_BULK 2
	20	#define TC_PRIO_INTERACTIVE_BULK 4
	21	#define TC_PRIO_INTERACTIVE 6
	22	#define TC_PRIO_CONTROL 7
	23
	24	#define TC_PRIO_MAX 15
	25
	26	/* Generic queue statistics, available for all the elements.
	27	Particular schedulers may have also their private records.
	28	*/
	29
	30	struct tc_stats
	31	{
	32	__u64 bytes; /* NUmber of enqueues bytes */
	33	__u32 packets; /* Number of enqueued packets */
	34	__u32 drops; /* Packets dropped because of lack of resources */
	35	__u32 overlimits; /* Number of throttle events when this
	36	* flow goes out of allocated bandwidth */
	37	__u32 bps; /* Current flow byte rate */
	38	__u32 pps; /* Current flow packet rate */
	39	__u32 qlen;
	40	__u32 backlog;
	41	};
	42
	43	struct tc_estimator
	44	{
	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
76	struct tc_ratespec
77	{
78	unsigned char cell_log;
79	unsigned char __reserved;
e08b0998 JDB	80	unsigned short overhead;
e08b0998 JDB	81	short cell_align;
1da177e4 LT	82	unsigned short mpu;
	83	__u32 rate;
	84	};
	85
5feb5e1a PM	86	#define TC_RTAB_SIZE 1024
5feb5e1a PM	87
175f9c1b JK	88	struct tc_sizespec {
	89	unsigned char cell_log;
	90	unsigned char size_log;
	91	short cell_align;
	92	int overhead;
	93	unsigned int linklayer;
	94	unsigned int mpu;
	95	unsigned int mtu;
	96	unsigned int tsize;
	97	};
	98
	99	enum {
	100	TCA_STAB_UNSPEC,
	101	TCA_STAB_BASE,
	102	TCA_STAB_DATA,
	103	__TCA_STAB_MAX
	104	};
	105
	106	#define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
	107
1da177e4 LT	108	/* FIFO section */
	109
	110	struct tc_fifo_qopt
	111	{
	112	__u32 limit; /* Queue length: bytes for bfifo, packets for pfifo */
	113	};
	114
	115	/* PRIO section */
	116
	117	#define TCQ_PRIO_BANDS 16
bdc450a0	118	#define TCQ_MIN_PRIO_BANDS 2
1da177e4 LT	119
	120	struct tc_prio_qopt
	121	{
	122	int bands; /* Number of bands */
	123	__u8 priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
	124	};
	125
	126	/* TBF section */
	127
	128	struct tc_tbf_qopt
	129	{
	130	struct tc_ratespec rate;
	131	struct tc_ratespec peakrate;
	132	__u32 limit;
	133	__u32 buffer;
	134	__u32 mtu;
	135	};
	136
	137	enum
	138	{
	139	TCA_TBF_UNSPEC,
	140	TCA_TBF_PARMS,
	141	TCA_TBF_RTAB,
	142	TCA_TBF_PTAB,
	143	__TCA_TBF_MAX,
	144	};
	145
	146	#define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
	147
	148
	149	/* TEQL section */
	150
	151	/* TEQL does not require any parameters */
	152
	153	/* SFQ section */
	154
	155	struct tc_sfq_qopt
	156	{
	157	unsigned quantum; /* Bytes per round allocated to flow */
	158	int perturb_period; /* Period of hash perturbation */
	159	__u32 limit; /* Maximal packets in queue */
	160	unsigned divisor; /* Hash divisor */
	161	unsigned flows; /* Maximal number of flows */
	162	};
	163
94de78d1 PM	164	struct tc_sfq_xstats
	165	{
	166	__s32 allot;
	167	};
	168
1da177e4 LT	169	/*
	170	* NOTE: limit, divisor and flows are hardwired to code at the moment.
	171	*
	172	* limit=flows=128, divisor=1024;
	173	*
	174	* The only reason for this is efficiency, it is possible
	175	* to change these parameters in compile time.
	176	*/
	177
	178	/* RED section */
	179
	180	enum
	181	{
	182	TCA_RED_UNSPEC,
	183	TCA_RED_PARMS,
	184	TCA_RED_STAB,
	185	__TCA_RED_MAX,
	186	};
	187
	188	#define TCA_RED_MAX (__TCA_RED_MAX - 1)
	189
	190	struct tc_red_qopt
	191	{
	192	__u32 limit; /* HARD maximal queue length (bytes) */
	193	__u32 qth_min; /* Min average length threshold (bytes) */
	194	__u32 qth_max; /* Max average length threshold (bytes) */
	195	unsigned char Wlog; /* log(W) */
	196	unsigned char Plog; /* log(P_max/(qth_max-qth_min)) */
	197	unsigned char Scell_log; /* cell size for idle damping */
	198	unsigned char flags;
	199	#define TC_RED_ECN 1
bdc450a0	200	#define TC_RED_HARDDROP 2
1da177e4 LT	201	};
	202
	203	struct tc_red_xstats
	204	{
	205	__u32 early; /* Early drops */
	206	__u32 pdrop; /* Drops due to queue limits */
	207	__u32 other; /* Drops due to drop() calls */
	208	__u32 marked; /* Marked packets */
	209	};
	210
	211	/* GRED section */
	212
	213	#define MAX_DPs 16
	214
	215	enum
	216	{
	217	TCA_GRED_UNSPEC,
	218	TCA_GRED_PARMS,
	219	TCA_GRED_STAB,
	220	TCA_GRED_DPS,
	221	__TCA_GRED_MAX,
	222	};
	223
	224	#define TCA_GRED_MAX (__TCA_GRED_MAX - 1)
	225
1da177e4 LT	226	struct tc_gred_qopt
1da177e4 LT	227	{
1e4dfaf9 TG	228	__u32 limit; /* HARD maximal queue length (bytes) */
	229	__u32 qth_min; /* Min average length threshold (bytes) */
	230	__u32 qth_max; /* Max average length threshold (bytes) */
	231	__u32 DP; /* upto 2^32 DPs */
	232	__u32 backlog;
	233	__u32 qave;
	234	__u32 forced;
	235	__u32 early;
	236	__u32 other;
	237	__u32 pdrop;
	238	__u8 Wlog; /* log(W) */
	239	__u8 Plog; /* log(P_max/(qth_max-qth_min)) */
	240	__u8 Scell_log; /* cell size for idle damping */
	241	__u8 prio; /* prio of this VQ */
	242	__u32 packets;
	243	__u32 bytesin;
1da177e4	244	};
1e4dfaf9	245
1da177e4 LT	246	/* gred setup */
	247	struct tc_gred_sopt
	248	{
1e4dfaf9 TG	249	__u32 DPs;
	250	__u32 def_DP;
	251	__u8 grio;
b38c7eef TG	252	__u8 flags;
b38c7eef TG	253	__u16 pad1;
1da177e4 LT	254	};
	255
	256	/* HTB section */
	257	#define TC_HTB_NUMPRIO 8
	258	#define TC_HTB_MAXDEPTH 8
	259	#define TC_HTB_PROTOVER 3 /* the same as HTB and TC's major */
	260
	261	struct tc_htb_opt
	262	{
	263	struct tc_ratespec rate;
	264	struct tc_ratespec ceil;
	265	__u32 buffer;
	266	__u32 cbuffer;
	267	__u32 quantum;
	268	__u32 level; /* out only */
	269	__u32 prio;
	270	};
	271	struct tc_htb_glob
	272	{
	273	__u32 version; /* to match HTB/TC */
	274	__u32 rate2quantum; /* bps->quantum divisor */
	275	__u32 defcls; /* default class number */
	276	__u32 debug; /* debug flags */
	277
	278	/* stats */
	279	__u32 direct_pkts; /* count of non shapped packets */
	280	};
	281	enum
	282	{
	283	TCA_HTB_UNSPEC,
	284	TCA_HTB_PARMS,
	285	TCA_HTB_INIT,
	286	TCA_HTB_CTAB,
	287	TCA_HTB_RTAB,
	288	__TCA_HTB_MAX,
	289	};
	290
	291	#define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
	292
	293	struct tc_htb_xstats
	294	{
	295	__u32 lends;
	296	__u32 borrows;
	297	__u32 giants; /* too big packets (rate will not be accurate) */
	298	__u32 tokens;
	299	__u32 ctokens;
	300	};
	301
	302	/* HFSC section */
	303
	304	struct tc_hfsc_qopt
	305	{
	306	__u16 defcls; /* default class */
	307	};
	308
	309	struct tc_service_curve
	310	{
	311	__u32 m1; /* slope of the first segment in bps */
	312	__u32 d; /* x-projection of the first segment in us */
	313	__u32 m2; /* slope of the second segment in bps */
	314	};
	315
	316	struct tc_hfsc_stats
	317	{
318	__u64 work; /* total work done */
319	__u64 rtwork; /* work done by real-time criteria */
320	__u32 period; /* current period */
321	__u32 level; /* class level in hierarchy */
322	};
323
324	enum
325	{
326	TCA_HFSC_UNSPEC,
327	TCA_HFSC_RSC,
328	TCA_HFSC_FSC,
329	TCA_HFSC_USC,
330	__TCA_HFSC_MAX,
331	};
332
333	#define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)
334
335
336	/* CBQ section */
337
338	#define TC_CBQ_MAXPRIO 8
339	#define TC_CBQ_MAXLEVEL 8
340	#define TC_CBQ_DEF_EWMA 5
341
342	struct tc_cbq_lssopt
343	{
344	unsigned char change;
345	unsigned char flags;
346	#define TCF_CBQ_LSS_BOUNDED 1
347	#define TCF_CBQ_LSS_ISOLATED 2
348	unsigned char ewma_log;
349	unsigned char level;
350	#define TCF_CBQ_LSS_FLAGS 1
351	#define TCF_CBQ_LSS_EWMA 2
352	#define TCF_CBQ_LSS_MAXIDLE 4
353	#define TCF_CBQ_LSS_MINIDLE 8
354	#define TCF_CBQ_LSS_OFFTIME 0x10
355	#define TCF_CBQ_LSS_AVPKT 0x20
356	__u32 maxidle;
357	__u32 minidle;
358	__u32 offtime;
359	__u32 avpkt;
360	};
361
362	struct tc_cbq_wrropt
363	{
364	unsigned char flags;
365	unsigned char priority;
366	unsigned char cpriority;
367	unsigned char __reserved;
368	__u32 allot;
369	__u32 weight;
370	};
371
372	struct tc_cbq_ovl
373	{
374	unsigned char strategy;
375	#define TC_CBQ_OVL_CLASSIC 0
376	#define TC_CBQ_OVL_DELAY 1
377	#define TC_CBQ_OVL_LOWPRIO 2
378	#define TC_CBQ_OVL_DROP 3
379	#define TC_CBQ_OVL_RCLASSIC 4
380	unsigned char priority2;
8a47077a	381	__u16 pad;
1da177e4 LT	382	__u32 penalty;
	383	};
	384
	385	struct tc_cbq_police
	386	{
	387	unsigned char police;
	388	unsigned char __res1;
	389	unsigned short __res2;
	390	};
	391
	392	struct tc_cbq_fopt
	393	{
	394	__u32 split;
	395	__u32 defmap;
	396	__u32 defchange;
	397	};
	398
	399	struct tc_cbq_xstats
	400	{
	401	__u32 borrows;
	402	__u32 overactions;
	403	__s32 avgidle;
	404	__s32 undertime;
	405	};
	406
	407	enum
	408	{
	409	TCA_CBQ_UNSPEC,
	410	TCA_CBQ_LSSOPT,
	411	TCA_CBQ_WRROPT,
	412	TCA_CBQ_FOPT,
	413	TCA_CBQ_OVL_STRATEGY,
	414	TCA_CBQ_RATE,
	415	TCA_CBQ_RTAB,
	416	TCA_CBQ_POLICE,
	417	__TCA_CBQ_MAX,
	418	};
	419
	420	#define TCA_CBQ_MAX (__TCA_CBQ_MAX - 1)
	421
	422	/* dsmark section */
	423
	424	enum {
	425	TCA_DSMARK_UNSPEC,
	426	TCA_DSMARK_INDICES,
	427	TCA_DSMARK_DEFAULT_INDEX,
	428	TCA_DSMARK_SET_TC_INDEX,
	429	TCA_DSMARK_MASK,
	430	TCA_DSMARK_VALUE,
	431	__TCA_DSMARK_MAX,
	432	};
	433
	434	#define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)
	435
	436	/* ATM section */
	437
	438	enum {
	439	TCA_ATM_UNSPEC,
	440	TCA_ATM_FD, /* file/socket descriptor */
	441	TCA_ATM_PTR, /* pointer to descriptor - later */
	442	TCA_ATM_HDR, /* LL header */
	443	TCA_ATM_EXCESS, /* excess traffic class (0 for CLP) */
	444	TCA_ATM_ADDR, /* PVC address (for output only) */
	445	TCA_ATM_STATE, /* VC state (ATM_VS_; for output only) /
446	__TCA_ATM_MAX,
447	};
448
449	#define TCA_ATM_MAX (__TCA_ATM_MAX - 1)
450
451	/* Network emulator */
452
453	enum
454	{
455	TCA_NETEM_UNSPEC,
456	TCA_NETEM_CORR,
457	TCA_NETEM_DELAY_DIST,
0dca51d3	458	TCA_NETEM_REORDER,
c865e5d9	459	TCA_NETEM_CORRUPT,
1da177e4 LT	460	__TCA_NETEM_MAX,
	461	};
	462
	463	#define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)
	464
	465	struct tc_netem_qopt
	466	{
	467	__u32 latency; /* added delay (us) */
	468	__u32 limit; /* fifo limit (packets) */
	469	__u32 loss; /* random packet loss (0=none ~0=100%) */
0dca51d3	470	__u32 gap; /* re-ordering gap (0 for none) */
1da177e4 LT	471	__u32 duplicate; /* random packet dup (0=none ~0=100%) */
	472	__u32 jitter; /* random jitter in latency (us) */
	473	};
	474
	475	struct tc_netem_corr
	476	{
	477	__u32 delay_corr; /* delay correlation */
	478	__u32 loss_corr; /* packet loss correlation */
	479	__u32 dup_corr; /* duplicate correlation */
	480	};
	481
0dca51d3 SH	482	struct tc_netem_reorder
	483	{
	484	__u32 probability;
	485	__u32 correlation;
	486	};
	487
c865e5d9 SH	488	struct tc_netem_corrupt
	489	{
	490	__u32 probability;
	491	__u32 correlation;
	492	};
	493
1da177e4 LT	494	#define NETEM_DIST_SCALE 8192
	495
	496	#endif