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freebsd/sys/netatm/atm_sys.h
Peter Wemm c3aac50f28 $Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00

276 lines
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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $FreeBSD$
*
*/
/*
* Core ATM Services
* -----------------
*
* General system definitions
*
*/
#ifndef _NETATM_ATM_SYS_H
#define _NETATM_ATM_SYS_H
/*
* Software Version
*/
#define ATM_VERSION 0x00030000 /* Version 3.0 */
#define ATM_VERS_MAJ(v) ((v) >> 16)
#define ATM_VERS_MIN(v) ((v) & 0xffff)
/*
* Misc system defines
*/
#define ATM_CALLQ_MAX 100 /* Maximum length of call queue */
#define ATM_INTRQ_MAX 1000 /* Maximum length of interrupt queue */
/*
* ATM address manipulation macros
*/
#define ATM_ADDR_EQUAL(a1, a2) \
(((a1)->address_format == (a2)->address_format) && \
((a1)->address_length == (a2)->address_length) && \
(bcmp((caddr_t)(a1)->address, (caddr_t)(a2)->address, \
(a1)->address_length) == 0))
#define ATM_ADDR_SEL_EQUAL(a1, s1, a2) \
(((a1)->address_format == (a2)->address_format) && \
((a1)->address_length == (a2)->address_length) && \
(((((a1)->address_format == T_ATM_ENDSYS_ADDR) || \
((a1)->address_format == T_ATM_NSAP_ADDR)) && \
(bcmp((caddr_t)(a1)->address, (caddr_t)(a2)->address, \
(a1)->address_length - 1) == 0) && \
((s1) == ((struct atm_addr_nsap *)(a2)->address)->aan_sel)) || \
(((a1)->address_format != T_ATM_ENDSYS_ADDR) && \
((a1)->address_format != T_ATM_NSAP_ADDR) && \
(bcmp((caddr_t)(a1)->address, (caddr_t)(a2)->address, \
(a1)->address_length) == 0))))
#define ATM_ADDR_COPY(a1, a2) \
{ \
(a2)->address_format = (a1)->address_format; \
(a2)->address_length = (a1)->address_length; \
XM_COPY((caddr_t)(a1)->address, (caddr_t)(a2)->address, \
(a1)->address_length); \
}
#define ATM_ADDR_SEL_COPY(a1, s1, a2) \
{ \
(a2)->address_format = (a1)->address_format; \
(a2)->address_length = (a1)->address_length; \
if (((a1)->address_format == T_ATM_ENDSYS_ADDR) || \
((a1)->address_format == T_ATM_NSAP_ADDR)) { \
XM_COPY((caddr_t)(a1)->address, (caddr_t)(a2)->address, \
(a1)->address_length - 1); \
((struct atm_addr_nsap *)(a2)->address)->aan_sel = (s1);\
} else { \
XM_COPY((caddr_t)(a1)->address, (caddr_t)(a2)->address, \
(a1)->address_length); \
} \
}
/*
* ATM Cell Header definitions
*/
/*
* These macros assume that the cell header (minus the HEC)
* is contained in the least-significant 32-bits of a word
*/
#define ATM_HDR_SET_VPI(vpi) (((vpi) & 0xff) << 20)
#define ATM_HDR_SET_VCI(vci) (((vci) & 0xffff) << 4)
#define ATM_HDR_SET_PT(pt) (((pt) & 0x7) << 1)
#define ATM_HDR_SET_CLP(clp) ((clp) & 0x1)
#define ATM_HDR_SET(vpi,vci,pt,clp) (ATM_HDR_SET_VPI(vpi) | \
ATM_HDR_SET_VCI(vci) | \
ATM_HDR_SET_PT(pt) | \
ATM_HDR_SET_CLP(clp))
#define ATM_HDR_GET_VPI(hdr) (((hdr) >> 20) & 0xff)
#define ATM_HDR_GET_VCI(hdr) (((hdr) >> 4) & 0xffff)
#define ATM_HDR_GET_PT(hdr) (((hdr) >> 1) & 0x7)
#define ATM_HDR_GET_CLP(hdr) ((hdr) & 0x1)
/*
* Payload Type Identifier (3 bits)
*/
#define ATM_PT_USER_SDU0 0x0 /* User, no congestion, sdu type 0 */
#define ATM_PT_USER_SDU1 0x1 /* User, no congestion, sdu type 1 */
#define ATM_PT_USER_CONG_SDU0 0x2 /* User, congestion, sdu type 0 */
#define ATM_PT_USER_CONG_SDU1 0x3 /* User, congestion, sdu type 1 */
#define ATM_PT_NONUSER 0x4 /* User/non-user differentiator */
#define ATM_PT_OAMF5_SEG 0x4 /* OAM F5 segment flow */
#define ATM_PT_OAMF5_E2E 0x5 /* OAM F5 end-to-end flow */
/*
* AAL (ATM Adaptation Layer) codes
*/
typedef u_char Aal_t;
#define ATM_AAL0 0 /* AAL0 - Cell service */
#define ATM_AAL1 1 /* AAL1 */
#define ATM_AAL2 2 /* AAL2 */
#define ATM_AAL3_4 3 /* AAL3/4 */
#define ATM_AAL5 5 /* AAL5 */
/*
* VCC Encapsulation codes
*/
typedef u_char Encaps_t;
#define ATM_ENC_NULL 1 /* Null encapsulation */
#define ATM_ENC_LLC 2 /* LLC encapsulation */
#ifdef ATM_KERNEL
/*
* ATM timer control block. Used to schedule a timeout via atm_timeout().
* This control block will typically be embedded in a processing-specific
* control block.
*/
struct atm_time {
u_short ti_ticks; /* Delta of ticks until timeout */
u_char ti_flag; /* Timer flag bits (see below) */
void (*ti_func) /* Call at timeout expiration */
__P((struct atm_time *));
struct atm_time *ti_next; /* Next on queue */
};
/*
* Timer Flags
*/
#define TIF_QUEUED 0x01 /* Control block on timer queue */
#define ATM_HZ 2 /* Time ticks per second */
/*
* To avoid heavy use of kmem_alloc, memory for protocol control blocks may
* be allocated from storage pools. Each control block type will have
* its own pool. Each storage pool will consist of individually allocated
* memory chunks, which will then be sub-divided into the separate control
* blocks. Each chunk will contain a header (sp_chunk) and 'n' blocks of the
* same type, plus a link field for each block. Each chunk will also contain
* a list of all free control blocks in the chunk.
*
* Each protocol must define an sp_info structure for each of its storage
* pools. This structure serves as the "root" for its particular pool.
* Protocols must not modify this structure after its first use.
*/
struct sp_info {
/* Values supplied by pool owner */
char *si_name; /* Name of pool */
size_t si_blksiz; /* Size of each block */
int si_blkcnt; /* Blocks per chunk */
int si_maxallow; /* Maximum allowable chunks */
/* Used by allocate/free functions - do not touch */
struct sp_info *si_next; /* Next active storage pool */
struct sp_chunk *si_poolh; /* Storage pool chunk head */
struct sp_chunk *si_poolt; /* Storage pool chunk tail */
size_t si_chunksiz; /* Size of chunk */
int si_chunks; /* Current allocated chunks */
int si_total; /* Total number of blocks */
int si_free; /* Free blocks */
int si_maxused; /* Maximum allocated chunks */
int si_allocs; /* Total allocate calls */
int si_fails; /* Allocate failures */
};
struct sp_chunk {
struct sp_chunk *sc_next; /* Next chunk in pool */
struct sp_info *sc_info; /* Storage pool info */
u_int sc_magic; /* Chunk magic number */
int sc_used; /* Allocated blocks in chunk */
struct sp_link *sc_freeh; /* Head of free blocks in chunk */
struct sp_link *sc_freet; /* Tail of free blocks in chunk */
};
struct sp_link {
union {
struct sp_link *slu_next; /* Next block in free list */
struct sp_chunk *slu_chunk; /* Link back to our chunk */
} sl_u;
};
#define SPOOL_MAGIC 0x73d4b69c /* Storage pool magic number */
#define SPOOL_MIN_CHUNK 2 /* Minimum number of chunks */
#define SPOOL_ROUNDUP 16 /* Roundup for allocated chunks */
#define SPOOL_COMPACT (300 * ATM_HZ) /* Compaction timeout value */
/*
* Debugging
*/
#ifdef DIAGNOSTIC
#define ATM_TIME \
struct timeval now, delta; \
KT_TIME(now); \
delta.tv_sec = now.tv_sec - atm_debugtime.tv_sec; \
delta.tv_usec = now.tv_usec - atm_debugtime.tv_usec; \
atm_debugtime = now; \
if (delta.tv_usec < 0) { \
delta.tv_sec--; \
delta.tv_usec += 1000000; \
} \
printf("%3ld.%6ld: ", delta.tv_sec, delta.tv_usec);
#define ATM_DEBUG0(f) if (atm_debug) {ATM_TIME; printf(f);}
#define ATM_DEBUGN0(f) if (atm_debug) {printf(f);}
#define ATM_DEBUG1(f,a1) if (atm_debug) {ATM_TIME; printf(f, a1);}
#define ATM_DEBUGN1(f,a1) if (atm_debug) {printf(f, a1);}
#define ATM_DEBUG2(f,a1,a2) if (atm_debug) {ATM_TIME; printf(f, a1, a2);}
#define ATM_DEBUGN2(f,a1,a2) if (atm_debug) {printf(f, a1, a2);}
#define ATM_DEBUG3(f,a1,a2,a3) if (atm_debug) {ATM_TIME; printf(f, a1, a2, a3);}
#define ATM_DEBUGN3(f,a1,a2,a3) if (atm_debug) {printf(f, a1, a2, a3);}
#define ATM_DEBUG4(f,a1,a2,a3,a4) if (atm_debug) {ATM_TIME; printf(f, a1, a2, a3, a4);}
#define ATM_DEBUGN4(f,a1,a2,a3,a4) if (atm_debug) {printf(f, a1, a2, a3, a4);}
#define ATM_DEBUG5(f,a1,a2,a3,a4,a5) if (atm_debug) {ATM_TIME; printf(f, a1, a2, a3, a4, a5);}
#define ATM_DEBUGN5(f,a1,a2,a3,a4,a5) if (atm_debug) {printf(f, a1, a2, a3, a4, a5);}
#else
#define ATM_DEBUG0(f)
#define ATM_DEBUGN0(f)
#define ATM_DEBUG1(f,a1)
#define ATM_DEBUGN1(f,a1)
#define ATM_DEBUG2(f,a1,a2)
#define ATM_DEBUGN2(f,a1,a2)
#define ATM_DEBUG3(f,a1,a2,a3)
#define ATM_DEBUGN3(f,a1,a2,a3)
#define ATM_DEBUG4(f,a1,a2,a3,a4)
#define ATM_DEBUGN4(f,a1,a2,a3,a4)
#define ATM_DEBUG5(f,a1,a2,a3,a4,a5)
#define ATM_DEBUGN5(f,a1,a2,a3,a4,a5)
#endif
#endif /* ATM_KERNEL */
#endif /* _NETATM_ATM_SYS_H */
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