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      1 /* atmdev.h - ATM device driver declarations and various related items */
      2 
      3 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
      4 
      5 
      6 #ifndef LINUX_ATMDEV_H
      7 #define LINUX_ATMDEV_H
      8 
      9 
     10 #include <linux/atmapi.h>
     11 #include <linux/atm.h>
     12 #include <linux/atmioc.h>
     13 
     14 
     15 #define ESI_LEN		6
     16 
     17 #define ATM_OC3_PCR	(155520000/270*260/8/53)
     18 			/* OC3 link rate:  155520000 bps
     19 			   SONET overhead: /270*260 (9 section, 1 path)
     20 			   bits per cell:  /8/53
     21 			   max cell rate:  353207.547 cells/sec */
     22 #define ATM_25_PCR	((25600000/8-8000)/54)
     23 			/* 25 Mbps ATM cell rate (59111) */
     24 #define ATM_OC12_PCR	(622080000/1080*1040/8/53)
     25 			/* OC12 link rate: 622080000 bps
     26 			   SONET overhead: /1080*1040
     27 			   bits per cell:  /8/53
     28 			   max cell rate:  1412830.188 cells/sec */
     29 #define ATM_DS3_PCR	(8000*12)
     30 			/* DS3: 12 cells in a 125 usec time slot */
     31 
     32 
     33 #define __AAL_STAT_ITEMS \
     34     __HANDLE_ITEM(tx);			/* TX okay */ \
     35     __HANDLE_ITEM(tx_err);		/* TX errors */ \
     36     __HANDLE_ITEM(rx);			/* RX okay */ \
     37     __HANDLE_ITEM(rx_err);		/* RX errors */ \
     38     __HANDLE_ITEM(rx_drop);		/* RX out of memory */
     39 
     40 struct atm_aal_stats {
     41 #define __HANDLE_ITEM(i) int i
     42 	__AAL_STAT_ITEMS
     43 #undef __HANDLE_ITEM
     44 };
     45 
     46 
     47 struct atm_dev_stats {
     48 	struct atm_aal_stats aal0;
     49 	struct atm_aal_stats aal34;
     50 	struct atm_aal_stats aal5;
     51 } __ATM_API_ALIGN;
     52 
     53 
     54 #define ATM_GETLINKRATE	_IOW('a',ATMIOC_ITF+1,struct atmif_sioc)
     55 					/* get link rate */
     56 #define ATM_GETNAMES	_IOW('a',ATMIOC_ITF+3,struct atm_iobuf)
     57 					/* get interface names (numbers) */
     58 #define ATM_GETTYPE	_IOW('a',ATMIOC_ITF+4,struct atmif_sioc)
     59 					/* get interface type name */
     60 #define ATM_GETESI	_IOW('a',ATMIOC_ITF+5,struct atmif_sioc)
     61 					/* get interface ESI */
     62 #define ATM_GETADDR	_IOW('a',ATMIOC_ITF+6,struct atmif_sioc)
     63 					/* get itf's local ATM addr. list */
     64 #define ATM_RSTADDR	_IOW('a',ATMIOC_ITF+7,struct atmif_sioc)
     65 					/* reset itf's ATM address list */
     66 #define ATM_ADDADDR	_IOW('a',ATMIOC_ITF+8,struct atmif_sioc)
     67 					/* add a local ATM address */
     68 #define ATM_DELADDR	_IOW('a',ATMIOC_ITF+9,struct atmif_sioc)
     69 					/* remove a local ATM address */
     70 #define ATM_GETCIRANGE	_IOW('a',ATMIOC_ITF+10,struct atmif_sioc)
     71 					/* get connection identifier range */
     72 #define ATM_SETCIRANGE	_IOW('a',ATMIOC_ITF+11,struct atmif_sioc)
     73 					/* set connection identifier range */
     74 #define ATM_SETESI	_IOW('a',ATMIOC_ITF+12,struct atmif_sioc)
     75 					/* set interface ESI */
     76 #define ATM_SETESIF	_IOW('a',ATMIOC_ITF+13,struct atmif_sioc)
     77 					/* force interface ESI */
     78 #define ATM_ADDLECSADDR	_IOW('a', ATMIOC_ITF+14, struct atmif_sioc)
     79 					/* register a LECS address */
     80 #define ATM_DELLECSADDR	_IOW('a', ATMIOC_ITF+15, struct atmif_sioc)
     81 					/* unregister a LECS address */
     82 #define ATM_GETLECSADDR	_IOW('a', ATMIOC_ITF+16, struct atmif_sioc)
     83 					/* retrieve LECS address(es) */
     84 
     85 #define ATM_GETSTAT	_IOW('a',ATMIOC_SARCOM+0,struct atmif_sioc)
     86 					/* get AAL layer statistics */
     87 #define ATM_GETSTATZ	_IOW('a',ATMIOC_SARCOM+1,struct atmif_sioc)
     88 					/* get AAL layer statistics and zero */
     89 #define ATM_GETLOOP	_IOW('a',ATMIOC_SARCOM+2,struct atmif_sioc)
     90 					/* get loopback mode */
     91 #define ATM_SETLOOP	_IOW('a',ATMIOC_SARCOM+3,struct atmif_sioc)
     92 					/* set loopback mode */
     93 #define ATM_QUERYLOOP	_IOW('a',ATMIOC_SARCOM+4,struct atmif_sioc)
     94 					/* query supported loopback modes */
     95 #define ATM_SETSC	_IOW('a',ATMIOC_SPECIAL+1,int)
     96 					/* enable or disable single-copy */
     97 #define ATM_SETBACKEND	_IOW('a',ATMIOC_SPECIAL+2,atm_backend_t)
     98 					/* set backend handler */
     99 #define ATM_NEWBACKENDIF _IOW('a',ATMIOC_SPECIAL+3,atm_backend_t)
    100 					/* use backend to make new if */
    101 #define ATM_ADDPARTY  	_IOW('a', ATMIOC_SPECIAL+4,struct atm_iobuf)
    102  					/* add party to p2mp call */
    103 #define ATM_DROPPARTY 	_IOW('a', ATMIOC_SPECIAL+5,int)
    104 					/* drop party from p2mp call */
    105 
    106 /*
    107  * These are backend handkers that can be set via the ATM_SETBACKEND call
    108  * above.  In the future we may support dynamic loading of these - for now,
    109  * they're just being used to share the ATMIOC_BACKEND ioctls
    110  */
    111 #define ATM_BACKEND_RAW		0
    112 #define ATM_BACKEND_PPP		1	/* PPPoATM - RFC2364 */
    113 #define ATM_BACKEND_BR2684	2	/* Bridged RFC1483/2684 */
    114 
    115 /* for ATM_GETTYPE */
    116 #define ATM_ITFTYP_LEN	8	/* maximum length of interface type name */
    117 
    118 /*
    119  * Loopback modes for ATM_{PHY,SAR}_{GET,SET}LOOP
    120  */
    121 
    122 /* Point of loopback				CPU-->SAR-->PHY-->line--> ... */
    123 #define __ATM_LM_NONE	0	/* no loop back     ^     ^     ^      ^      */
    124 #define __ATM_LM_AAL	1	/* loop back PDUs --'     |     |      |      */
    125 #define __ATM_LM_ATM	2	/* loop back ATM cells ---'     |      |      */
    126 /* RESERVED		4	loop back on PHY side  ---'		      */
    127 #define __ATM_LM_PHY	8	/* loop back bits (digital) ----'      |      */
    128 #define __ATM_LM_ANALOG 16	/* loop back the analog signal --------'      */
    129 
    130 /* Direction of loopback */
    131 #define __ATM_LM_MKLOC(n)	((n))	    /* Local (i.e. loop TX to RX) */
    132 #define __ATM_LM_MKRMT(n)	((n) << 8)  /* Remote (i.e. loop RX to TX) */
    133 
    134 #define __ATM_LM_XTLOC(n)	((n) & 0xff)
    135 #define __ATM_LM_XTRMT(n)	(((n) >> 8) & 0xff)
    136 
    137 #define ATM_LM_NONE	0	/* no loopback */
    138 
    139 #define ATM_LM_LOC_AAL	__ATM_LM_MKLOC(__ATM_LM_AAL)
    140 #define ATM_LM_LOC_ATM	__ATM_LM_MKLOC(__ATM_LM_ATM)
    141 #define ATM_LM_LOC_PHY	__ATM_LM_MKLOC(__ATM_LM_PHY)
    142 #define ATM_LM_LOC_ANALOG __ATM_LM_MKLOC(__ATM_LM_ANALOG)
    143 
    144 #define ATM_LM_RMT_AAL	__ATM_LM_MKRMT(__ATM_LM_AAL)
    145 #define ATM_LM_RMT_ATM	__ATM_LM_MKRMT(__ATM_LM_ATM)
    146 #define ATM_LM_RMT_PHY	__ATM_LM_MKRMT(__ATM_LM_PHY)
    147 #define ATM_LM_RMT_ANALOG __ATM_LM_MKRMT(__ATM_LM_ANALOG)
    148 
    149 /*
    150  * Note: ATM_LM_LOC_* and ATM_LM_RMT_* can be combined, provided that
    151  * __ATM_LM_XTLOC(x) <= __ATM_LM_XTRMT(x)
    152  */
    153 
    154 
    155 struct atm_iobuf {
    156 	int length;
    157 	void *buffer;
    158 };
    159 
    160 /* for ATM_GETCIRANGE / ATM_SETCIRANGE */
    161 
    162 #define ATM_CI_MAX      -1              /* use maximum range of VPI/VCI */
    163 
    164 struct atm_cirange {
    165 	signed char	vpi_bits;	/* 1..8, ATM_CI_MAX (-1) for maximum */
    166 	signed char	vci_bits;	/* 1..16, ATM_CI_MAX (-1) for maximum */
    167 };
    168 
    169 /* for ATM_SETSC; actually taken from the ATM_VF number space */
    170 
    171 #define ATM_SC_RX	1024		/* enable RX single-copy */
    172 #define ATM_SC_TX	2048		/* enable TX single-copy */
    173 
    174 #define ATM_BACKLOG_DEFAULT 32 /* if we get more, we're likely to time out
    175 				  anyway */
    176 
    177 /* MF: change_qos (Modify) flags */
    178 
    179 #define ATM_MF_IMMED	 1	/* Block until change is effective */
    180 #define ATM_MF_INC_RSV	 2	/* Change reservation on increase */
    181 #define ATM_MF_INC_SHP	 4	/* Change shaping on increase */
    182 #define ATM_MF_DEC_RSV	 8	/* Change reservation on decrease */
    183 #define ATM_MF_DEC_SHP	16	/* Change shaping on decrease */
    184 #define ATM_MF_BWD	32	/* Set the backward direction parameters */
    185 
    186 #define ATM_MF_SET	(ATM_MF_INC_RSV | ATM_MF_INC_SHP | ATM_MF_DEC_RSV | \
    187 			  ATM_MF_DEC_SHP | ATM_MF_BWD)
    188 
    189 /*
    190  * ATM_VS_* are used to express VC state in a human-friendly way.
    191  */
    192 
    193 #define ATM_VS_IDLE	0	/* VC is not used */
    194 #define ATM_VS_CONNECTED 1	/* VC is connected */
    195 #define ATM_VS_CLOSING	2	/* VC is closing */
    196 #define ATM_VS_LISTEN	3	/* VC is listening for incoming setups */
    197 #define ATM_VS_INUSE	4	/* VC is in use (registered with atmsigd) */
    198 #define ATM_VS_BOUND	5	/* VC is bound */
    199 
    200 #define ATM_VS2TXT_MAP \
    201     "IDLE", "CONNECTED", "CLOSING", "LISTEN", "INUSE", "BOUND"
    202 
    203 #define ATM_VF2TXT_MAP \
    204     "ADDR",	"READY",	"PARTIAL",	"REGIS", \
    205     "RELEASED", "HASQOS",	"LISTEN",	"META", \
    206     "256",	"512",		"1024",		"2048", \
    207     "SESSION",	"HASSAP",	"BOUND",	"CLOSE"
    208 
    209 
    210 
    211 #endif
    212