[net-next-2.6.git] / include / linux / atm.h

/* atm.h - general ATM declarations */
 
/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
 

/*
 * WARNING: User-space programs should not #include <linux/atm.h> directly.
 *          Instead, #include <atm.h>
 */

#ifndef _LINUX_ATM_H
#define _LINUX_ATM_H

/*
 * BEGIN_xx and END_xx markers are used for automatic generation of
 * documentation. Do not change them.
 */

#include <linux/compiler.h>
#include <linux/atmapi.h>
#include <linux/atmsap.h>
#include <linux/atmioc.h>
#include <linux/types.h>


/* general ATM constants */
#define ATM_CELL_SIZE		    53	/* ATM cell size incl. header */
#define ATM_CELL_PAYLOAD	    48	/* ATM payload size */
#define ATM_AAL0_SDU		    52	/* AAL0 SDU size */
#define ATM_MAX_AAL34_PDU	 65535	/* maximum AAL3/4 PDU payload */
#define ATM_AAL5_TRAILER	     8	/* AAL5 trailer size */
#define ATM_MAX_AAL5_PDU	 65535	/* maximum AAL5 PDU payload */
#define ATM_MAX_CDV		  9999	/* maximum (default) CDV */
#define ATM_NOT_RSV_VCI		    32	/* first non-reserved VCI value */

#define ATM_MAX_VPI		   255	/* maximum VPI at the UNI */
#define ATM_MAX_VPI_NNI		  4096	/* maximum VPI at the NNI */
#define ATM_MAX_VCI		 65535	/* maximum VCI */


/* "protcol" values for the socket system call */
#define ATM_NO_AAL	0		/* AAL not specified */
#define ATM_AAL0	13		/* "raw" ATM cells */
#define ATM_AAL1	1		/* AAL1 (CBR) */
#define ATM_AAL2	2		/* AAL2 (VBR) */
#define ATM_AAL34	3		/* AAL3/4 (data) */
#define ATM_AAL5	5		/* AAL5 (data) */

/*
 * socket option name coding functions
 *
 * Note that __SO_ENCODE and __SO_LEVEL are somewhat a hack since the
 * << 22 only reserves 9 bits for the level.  On some architectures
 * SOL_SOCKET is 0xFFFF, so that's a bit of a problem
 */

#define __SO_ENCODE(l,n,t)	((((l) & 0x1FF) << 22) | ((n) << 16) | \
				sizeof(t))
#define __SO_LEVEL_MATCH(c,m)	(((c) >> 22) == ((m) & 0x1FF))
#define __SO_NUMBER(c)		(((c) >> 16) & 0x3f)
#define __SO_SIZE(c)		((c) & 0x3fff)

/*
 * ATM layer
 */

#define SO_SETCLP	__SO_ENCODE(SOL_ATM,0,int)
			    /* set CLP bit value - TODO */
#define SO_CIRANGE	__SO_ENCODE(SOL_ATM,1,struct atm_cirange)
			    /* connection identifier range; socket must be
			       bound or connected */
#define SO_ATMQOS	__SO_ENCODE(SOL_ATM,2,struct atm_qos)
			    /* Quality of Service setting */
#define SO_ATMSAP	__SO_ENCODE(SOL_ATM,3,struct atm_sap)
			    /* Service Access Point */
#define SO_ATMPVC	__SO_ENCODE(SOL_ATM,4,struct sockaddr_atmpvc)
			    /* "PVC" address (also for SVCs); get only */
#define SO_MULTIPOINT	__SO_ENCODE(SOL_ATM, 5, int)
			    /* make this vc a p2mp */


/*
 * Note @@@: since the socket layers don't really distinguish the control and
 * the data plane but generally seems to be data plane-centric, any layer is
 * about equally wrong for the SAP. If you have a better idea about this,
 * please speak up ...
 */


/* ATM cell header (for AAL0) */

/* BEGIN_CH */
#define ATM_HDR_GFC_MASK	0xf0000000
#define ATM_HDR_GFC_SHIFT	28
#define ATM_HDR_VPI_MASK	0x0ff00000
#define ATM_HDR_VPI_SHIFT	20
#define ATM_HDR_VCI_MASK	0x000ffff0
#define ATM_HDR_VCI_SHIFT	4
#define ATM_HDR_PTI_MASK	0x0000000e
#define ATM_HDR_PTI_SHIFT	1
#define ATM_HDR_CLP		0x00000001
/* END_CH */


/* PTI codings */

/* BEGIN_PTI */
#define ATM_PTI_US0	0  /* user data cell, congestion not exp, SDU-type 0 */
#define ATM_PTI_US1	1  /* user data cell, congestion not exp, SDU-type 1 */
#define ATM_PTI_UCES0	2  /* user data cell, cong. experienced, SDU-type 0 */
#define ATM_PTI_UCES1	3  /* user data cell, cong. experienced, SDU-type 1 */
#define ATM_PTI_SEGF5	4  /* segment OAM F5 flow related cell */
#define ATM_PTI_E2EF5	5  /* end-to-end OAM F5 flow related cell */
#define ATM_PTI_RSV_RM	6  /* reserved for traffic control/resource mgmt */
#define ATM_PTI_RSV	7  /* reserved */
/* END_PTI */


/*
 * The following items should stay in linux/atm.h, which should be linked to
 * netatm/atm.h
 */

/* Traffic description */

#define ATM_NONE	0		/* no traffic */
#define ATM_UBR		1
#define ATM_CBR		2
#define ATM_VBR		3
#define ATM_ABR		4
#define ATM_ANYCLASS	5		/* compatible with everything */

#define ATM_MAX_PCR	-1		/* maximum available PCR */

struct atm_trafprm {
	unsigned char	traffic_class;	/* traffic class (ATM_UBR, ...) */
	int		max_pcr;	/* maximum PCR in cells per second */
	int		pcr;		/* desired PCR in cells per second */
	int		min_pcr;	/* minimum PCR in cells per second */
	int		max_cdv;	/* maximum CDV in microseconds */
	int		max_sdu;	/* maximum SDU in bytes */
        /* extra params for ABR */
        unsigned int 	icr;         	/* Initial Cell Rate (24-bit) */
        unsigned int	tbe;		/* Transient Buffer Exposure (24-bit) */ 
        unsigned int 	frtt : 24;	/* Fixed Round Trip Time (24-bit) */
        unsigned int 	rif  : 4;       /* Rate Increment Factor (4-bit) */
        unsigned int 	rdf  : 4;       /* Rate Decrease Factor (4-bit) */
        unsigned int nrm_pres  :1;      /* nrm present bit */
        unsigned int trm_pres  :1;     	/* rm present bit */
        unsigned int adtf_pres :1;     	/* adtf present bit */
        unsigned int cdf_pres  :1;    	/* cdf present bit*/
        unsigned int nrm       :3;     	/* Max # of Cells for each forward RM cell (3-bit) */
        unsigned int trm       :3;    	/* Time between forward RM cells (3-bit) */    
	unsigned int adtf      :10;     /* ACR Decrease Time Factor (10-bit) */
	unsigned int cdf       :3;      /* Cutoff Decrease Factor (3-bit) */
        unsigned int spare     :9;      /* spare bits */ 
};

struct atm_qos {
	struct atm_trafprm txtp;	/* parameters in TX direction */
	struct atm_trafprm rxtp __ATM_API_ALIGN;
					/* parameters in RX direction */
	unsigned char aal __ATM_API_ALIGN;
};

/* PVC addressing */

#define ATM_ITF_ANY	-1		/* "magic" PVC address values */
#define ATM_VPI_ANY	-1
#define ATM_VCI_ANY	-1
#define ATM_VPI_UNSPEC	-2
#define ATM_VCI_UNSPEC	-2


struct sockaddr_atmpvc {
	unsigned short 	sap_family;	/* address family, AF_ATMPVC  */
	struct {			/* PVC address */
		short	itf;		/* ATM interface */
		short	vpi;		/* VPI (only 8 bits at UNI) */
		int	vci;		/* VCI (only 16 bits at UNI) */
	} sap_addr __ATM_API_ALIGN;	/* PVC address */
};

/* SVC addressing */

#define	ATM_ESA_LEN	20		/* ATM End System Address length */
#define ATM_E164_LEN	12		/* maximum E.164 number length */

#define ATM_AFI_DCC	0x39		/* DCC ATM Format */
#define ATM_AFI_ICD	0x47		/* ICD ATM Format */
#define ATM_AFI_E164	0x45		/* E.164 ATM Format */
#define ATM_AFI_LOCAL	0x49		/* Local ATM Format */ 

#define ATM_AFI_DCC_GROUP	0xBD	/* DCC ATM Group Format */
#define ATM_AFI_ICD_GROUP	0xC5	/* ICD ATM Group Format */
#define ATM_AFI_E164_GROUP	0xC3	/* E.164 ATM Group Format */
#define ATM_AFI_LOCAL_GROUP	0xC7	/* Local ATM Group Format */

#define ATM_LIJ_NONE	0		/* no leaf-initiated join */
#define ATM_LIJ		1		/* request joining */
#define ATM_LIJ_RPJ	2		/* set to root-prompted join */
#define ATM_LIJ_NJ	3		/* set to network join */


struct sockaddr_atmsvc {
    unsigned short 	sas_family;	/* address family, AF_ATMSVC */
    struct {				/* SVC address */
        unsigned char	prv[ATM_ESA_LEN];/* private ATM address */
        char		pub[ATM_E164_LEN+1]; /* public address (E.164) */
    					/* unused addresses must be bzero'ed */
	char		lij_type;	/* role in LIJ call; one of ATM_LIJ* */
	__u32	lij_id;		/* LIJ call identifier */
    } sas_addr __ATM_API_ALIGN;		/* SVC address */
};


static __inline__ int atmsvc_addr_in_use(struct sockaddr_atmsvc addr)
{
	return *addr.sas_addr.prv || *addr.sas_addr.pub;
}


static __inline__ int atmpvc_addr_in_use(struct sockaddr_atmpvc addr)
{
	return addr.sap_addr.itf || addr.sap_addr.vpi || addr.sap_addr.vci;
}


/*
 * Some stuff for linux/sockios.h
 */

struct atmif_sioc {
	int number;
	int length;
	void __user *arg;
};

#ifdef __KERNEL__
#ifdef CONFIG_COMPAT
#include <linux/compat.h>
struct compat_atmif_sioc {
	int number;
	int length;
	compat_uptr_t arg;
};
#endif
#endif

typedef unsigned short atm_backend_t;
#endif
Commit	Line	Data
1da177e4 LT	1	/* atm.h - general ATM declarations */
	2
	3	/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
	4
	5
	6	/*
	7	* WARNING: User-space programs should not #include <linux/atm.h> directly.
	8	* Instead, #include <atm.h>
	9	*/
	10
	11	#ifndef _LINUX_ATM_H
	12	#define _LINUX_ATM_H
	13
	14	/*
	15	* BEGIN_xx and END_xx markers are used for automatic generation of
	16	* documentation. Do not change them.
	17	*/
	18
1da177e4 LT	19	#include <linux/compiler.h>
	20	#include <linux/atmapi.h>
	21	#include <linux/atmsap.h>
	22	#include <linux/atmioc.h>
a1a61a43	23	#include <linux/types.h>
1da177e4 LT	24
	25
	26	/* general ATM constants */
	27	#define ATM_CELL_SIZE 53 /* ATM cell size incl. header */
	28	#define ATM_CELL_PAYLOAD 48 /* ATM payload size */
	29	#define ATM_AAL0_SDU 52 /* AAL0 SDU size */
	30	#define ATM_MAX_AAL34_PDU 65535 /* maximum AAL3/4 PDU payload */
	31	#define ATM_AAL5_TRAILER 8 /* AAL5 trailer size */
	32	#define ATM_MAX_AAL5_PDU 65535 /* maximum AAL5 PDU payload */
	33	#define ATM_MAX_CDV 9999 /* maximum (default) CDV */
	34	#define ATM_NOT_RSV_VCI 32 /* first non-reserved VCI value */
	35
	36	#define ATM_MAX_VPI 255 /* maximum VPI at the UNI */
	37	#define ATM_MAX_VPI_NNI 4096 /* maximum VPI at the NNI */
	38	#define ATM_MAX_VCI 65535 /* maximum VCI */
	39
	40
	41	/* "protcol" values for the socket system call */
	42	#define ATM_NO_AAL 0 /* AAL not specified */
	43	#define ATM_AAL0 13 /* "raw" ATM cells */
	44	#define ATM_AAL1 1 /* AAL1 (CBR) */
	45	#define ATM_AAL2 2 /* AAL2 (VBR) */
	46	#define ATM_AAL34 3 /* AAL3/4 (data) */
	47	#define ATM_AAL5 5 /* AAL5 (data) */
	48
	49	/*
	50	* socket option name coding functions
	51	*
	52	* Note that __SO_ENCODE and __SO_LEVEL are somewhat a hack since the
	53	* << 22 only reserves 9 bits for the level. On some architectures
	54	* SOL_SOCKET is 0xFFFF, so that's a bit of a problem
	55	*/
	56
	57	#define __SO_ENCODE(l,n,t) ((((l) & 0x1FF) << 22) \| ((n) << 16) \| \
	58	sizeof(t))
	59	#define __SO_LEVEL_MATCH(c,m) (((c) >> 22) == ((m) & 0x1FF))
	60	#define __SO_NUMBER(c) (((c) >> 16) & 0x3f)
	61	#define __SO_SIZE(c) ((c) & 0x3fff)
	62
	63	/*
	64	* ATM layer
	65	*/
	66
	67	#define SO_SETCLP __SO_ENCODE(SOL_ATM,0,int)
	68	/* set CLP bit value - TODO */
	69	#define SO_CIRANGE __SO_ENCODE(SOL_ATM,1,struct atm_cirange)
	70	/* connection identifier range; socket must be
	71	bound or connected */
	72	#define SO_ATMQOS __SO_ENCODE(SOL_ATM,2,struct atm_qos)
	73	/* Quality of Service setting */
	74	#define SO_ATMSAP __SO_ENCODE(SOL_ATM,3,struct atm_sap)
	75	/* Service Access Point */
	76	#define SO_ATMPVC __SO_ENCODE(SOL_ATM,4,struct sockaddr_atmpvc)
	77	/* "PVC" address (also for SVCs); get only */
	78	#define SO_MULTIPOINT __SO_ENCODE(SOL_ATM, 5, int)
	79	/* make this vc a p2mp */
	80
	81
	82	/*
	83	* Note @@@: since the socket layers don't really distinguish the control and
	84	* the data plane but generally seems to be data plane-centric, any layer is
	85	* about equally wrong for the SAP. If you have a better idea about this,
	86	* please speak up ...
	87	*/
88
89
90	/* ATM cell header (for AAL0) */
91
92	/* BEGIN_CH */
93	#define ATM_HDR_GFC_MASK 0xf0000000
94	#define ATM_HDR_GFC_SHIFT 28
95	#define ATM_HDR_VPI_MASK 0x0ff00000
96	#define ATM_HDR_VPI_SHIFT 20
97	#define ATM_HDR_VCI_MASK 0x000ffff0
98	#define ATM_HDR_VCI_SHIFT 4
99	#define ATM_HDR_PTI_MASK 0x0000000e
100	#define ATM_HDR_PTI_SHIFT 1
101	#define ATM_HDR_CLP 0x00000001
102	/* END_CH */
103
104
105	/* PTI codings */
106
107	/* BEGIN_PTI */
108	#define ATM_PTI_US0 0 /* user data cell, congestion not exp, SDU-type 0 */
109	#define ATM_PTI_US1 1 /* user data cell, congestion not exp, SDU-type 1 */
110	#define ATM_PTI_UCES0 2 /* user data cell, cong. experienced, SDU-type 0 */
111	#define ATM_PTI_UCES1 3 /* user data cell, cong. experienced, SDU-type 1 */
112	#define ATM_PTI_SEGF5 4 /* segment OAM F5 flow related cell */
113	#define ATM_PTI_E2EF5 5 /* end-to-end OAM F5 flow related cell */
114	#define ATM_PTI_RSV_RM 6 /* reserved for traffic control/resource mgmt */
115	#define ATM_PTI_RSV 7 /* reserved */
116	/* END_PTI */
117
118
119	/*
120	* The following items should stay in linux/atm.h, which should be linked to
121	* netatm/atm.h
122	*/
123
124	/* Traffic description */
125
126	#define ATM_NONE 0 /* no traffic */
127	#define ATM_UBR 1
128	#define ATM_CBR 2
129	#define ATM_VBR 3
130	#define ATM_ABR 4
131	#define ATM_ANYCLASS 5 /* compatible with everything */
132
133	#define ATM_MAX_PCR -1 /* maximum available PCR */
134
135	struct atm_trafprm {
136	unsigned char traffic_class; /* traffic class (ATM_UBR, ...) */
137	int max_pcr; /* maximum PCR in cells per second */
138	int pcr; /* desired PCR in cells per second */
139	int min_pcr; /* minimum PCR in cells per second */
140	int max_cdv; /* maximum CDV in microseconds */
141	int max_sdu; /* maximum SDU in bytes */
142	/* extra params for ABR */
143	unsigned int icr; /* Initial Cell Rate (24-bit) */
144	unsigned int tbe; /* Transient Buffer Exposure (24-bit) */
145	unsigned int frtt : 24; /* Fixed Round Trip Time (24-bit) */
146	unsigned int rif : 4; /* Rate Increment Factor (4-bit) */
147	unsigned int rdf : 4; /* Rate Decrease Factor (4-bit) */
148	unsigned int nrm_pres :1; /* nrm present bit */
149	unsigned int trm_pres :1; /* rm present bit */
150	unsigned int adtf_pres :1; /* adtf present bit */
151	unsigned int cdf_pres :1; /* cdf present bit*/
152	unsigned int nrm :3; /* Max # of Cells for each forward RM cell (3-bit) */
153	unsigned int trm :3; /* Time between forward RM cells (3-bit) */
154	unsigned int adtf :10; /* ACR Decrease Time Factor (10-bit) */
155	unsigned int cdf :3; /* Cutoff Decrease Factor (3-bit) */
156	unsigned int spare :9; /* spare bits */
157	};
158
159	struct atm_qos {
160	struct atm_trafprm txtp; /* parameters in TX direction */
161	struct atm_trafprm rxtp __ATM_API_ALIGN;
162	/* parameters in RX direction */
163	unsigned char aal __ATM_API_ALIGN;
164	};
165
166	/* PVC addressing */
167
168	#define ATM_ITF_ANY -1 /* "magic" PVC address values */
169	#define ATM_VPI_ANY -1
170	#define ATM_VCI_ANY -1
171	#define ATM_VPI_UNSPEC -2
172	#define ATM_VCI_UNSPEC -2
173
174
175	struct sockaddr_atmpvc {
176	unsigned short sap_family; /* address family, AF_ATMPVC */
177	struct { /* PVC address */
178	short itf; /* ATM interface */
179	short vpi; /* VPI (only 8 bits at UNI) */
180	int vci; /* VCI (only 16 bits at UNI) */
181	} sap_addr __ATM_API_ALIGN; /* PVC address */
182	};
183
184	/* SVC addressing */
185
186	#define ATM_ESA_LEN 20 /* ATM End System Address length */
187	#define ATM_E164_LEN 12 /* maximum E.164 number length */
188
189	#define ATM_AFI_DCC 0x39 /* DCC ATM Format */
190	#define ATM_AFI_ICD 0x47 /* ICD ATM Format */
191	#define ATM_AFI_E164 0x45 /* E.164 ATM Format */
192	#define ATM_AFI_LOCAL 0x49 /* Local ATM Format */
193
194	#define ATM_AFI_DCC_GROUP 0xBD /* DCC ATM Group Format */
195	#define ATM_AFI_ICD_GROUP 0xC5 /* ICD ATM Group Format */
196	#define ATM_AFI_E164_GROUP 0xC3 /* E.164 ATM Group Format */
197	#define ATM_AFI_LOCAL_GROUP 0xC7 /* Local ATM Group Format */
198
199	#define ATM_LIJ_NONE 0 /* no leaf-initiated join */
200	#define ATM_LIJ 1 /* request joining */
201	#define ATM_LIJ_RPJ 2 /* set to root-prompted join */
202	#define ATM_LIJ_NJ 3 /* set to network join */
203
204
205	struct sockaddr_atmsvc {
206	unsigned short sas_family; /* address family, AF_ATMSVC */
207	struct { /* SVC address */
208	unsigned char prv[ATM_ESA_LEN];/* private ATM address */
209	char pub[ATM_E164_LEN+1]; /* public address (E.164) */
210	/* unused addresses must be bzero'ed */
211	char lij_type; /* role in LIJ call; one of ATM_LIJ* */
a1a61a43	212	__u32 lij_id; /* LIJ call identifier */
1da177e4 LT	213	} sas_addr __ATM_API_ALIGN; /* SVC address */
	214	};
	215
	216
	217	static __inline__ int atmsvc_addr_in_use(struct sockaddr_atmsvc addr)
	218	{
	219	return addr.sas_addr.prv \|\| addr.sas_addr.pub;
	220	}
	221
	222
	223	static __inline__ int atmpvc_addr_in_use(struct sockaddr_atmpvc addr)
	224	{
	225	return addr.sap_addr.itf \|\| addr.sap_addr.vpi \|\| addr.sap_addr.vci;
	226	}
	227
	228
	229	/*
	230	* Some stuff for linux/sockios.h
	231	*/
	232
	233	struct atmif_sioc {
8865c418 DW	234	int number;
	235	int length;
	236	void __user *arg;
1da177e4 LT	237	};
1da177e4 LT	238
8865c418 DW	239	#ifdef __KERNEL__
	240	#ifdef CONFIG_COMPAT
	241	#include <linux/compat.h>
	242	struct compat_atmif_sioc {
	243	int number;
	244	int length;
	245	compat_uptr_t arg;
	246	};
	247	#endif
	248	#endif
	249
1da177e4 LT	250	typedef unsigned short atm_backend_t;
1da177e4 LT	251	#endif