xref: /onnv-gate/usr/src/uts/common/sys/suntpi.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1990-1998 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef	_SYS_SUNTPI_H
28*0Sstevel@tonic-gate #define	_SYS_SUNTPI_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate #include <sys/ksynch.h>
34*0Sstevel@tonic-gate #include <sys/stream.h>
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #ifdef	__cplusplus
37*0Sstevel@tonic-gate extern "C" {
38*0Sstevel@tonic-gate #endif
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #ifdef	_KERNEL
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate /*
43*0Sstevel@tonic-gate  * Persistent information about the capabilities of transport providers.
44*0Sstevel@tonic-gate  * This structure is for the internal use of sockfs and timod.  Because
45*0Sstevel@tonic-gate  * bitfield operations are not atomic, the lock must be used to avoid
46*0Sstevel@tonic-gate  * inconsistencies.
47*0Sstevel@tonic-gate  */
48*0Sstevel@tonic-gate typedef struct tpi_provinfo {
49*0Sstevel@tonic-gate 	struct tpi_provinfo	*tpi_next;
50*0Sstevel@tonic-gate 	void			*tpi_key;
51*0Sstevel@tonic-gate 	size_t			tpi_keylen;
52*0Sstevel@tonic-gate 	kmutex_t		tpi_lock;
53*0Sstevel@tonic-gate 	uint32_t		tpi_capability : 2,
54*0Sstevel@tonic-gate 				tpi_myname : 2,
55*0Sstevel@tonic-gate 				tpi_peername : 2,
56*0Sstevel@tonic-gate 				_tpi_unused : 26;
57*0Sstevel@tonic-gate } tpi_provinfo_t;
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate /*
60*0Sstevel@tonic-gate  * Possible values for the above 2-bitfields.  A capability is either
61*0Sstevel@tonic-gate  * supported, unsupported or unknown.
62*0Sstevel@tonic-gate  */
63*0Sstevel@tonic-gate #define	PI_DONTKNOW	0
64*0Sstevel@tonic-gate #define	PI_NO		1
65*0Sstevel@tonic-gate #define	PI_YES		2
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate extern void		tpi_init(void);
68*0Sstevel@tonic-gate extern tpi_provinfo_t	*tpi_findprov(queue_t *);
69*0Sstevel@tonic-gate 
70*0Sstevel@tonic-gate #define	PI_PROVLOCK(tp)		mutex_enter(&(tp)->tpi_lock)
71*0Sstevel@tonic-gate #define	PI_PROVUNLOCK(tp)	mutex_exit(&(tp)->tpi_lock)
72*0Sstevel@tonic-gate 
73*0Sstevel@tonic-gate extern mblk_t	*tpi_ack_alloc(mblk_t *, size_t, uchar_t, t_scalar_t);
74*0Sstevel@tonic-gate 
75*0Sstevel@tonic-gate #endif	/* _KERNEL */
76*0Sstevel@tonic-gate 
77*0Sstevel@tonic-gate #ifdef	__cplusplus
78*0Sstevel@tonic-gate }
79*0Sstevel@tonic-gate #endif
80*0Sstevel@tonic-gate 
81*0Sstevel@tonic-gate #endif	/* _SYS_SUNTPI_H */
82