1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
22 /* All Rights Reserved */
23
24 /*
25 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
27 */
28
29 #ifndef _SYS_CONF_H
30 #define _SYS_CONF_H
31
32
33 #include <sys/feature_tests.h>
34
35 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
36 #include <sys/t_lock.h>
37 #endif
38
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42
43 #define FMNAMESZ 8 /* used by struct fmodsw */
44
45 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
46
47 #ifdef _KERNEL
48
49 /*
50 * XXX Given that drivers need to include this file,
51 * <sys/systm.h> probably shouldn't be here, as
52 * it legitimizes (aka provides prototypes for)
53 * all sorts of functions that aren't in the DKI/SunDDI
54 */
55 #include <sys/systm.h>
56 #include <sys/devops.h>
57 #include <sys/model.h>
58 #include <sys/types.h>
59 #include <sys/buf.h>
60 #include <sys/cred.h>
61 #include <sys/uio.h>
62 #include <sys/poll.h>
63 #include <vm/as.h>
64
65 typedef struct fmodsw {
66 char f_name[FMNAMESZ + 1];
67 struct streamtab *f_str;
68 int f_flag;
69 } fmodsw_t;
70
71 extern struct dev_ops **devopsp;
72 extern int devcnt;
73
74 /*
75 * Return streams information for the driver specified by major number or
76 * NULL if device cb_ops structure is not present.
77 */
78 #define STREAMSTAB(maj) (devopsp[(maj)] == NULL ? NULL : \
79 (devopsp[(maj)]->devo_cb_ops == NULL ? \
80 NULL : \
81 devopsp[(maj)]->devo_cb_ops->cb_str))
82 #define CBFLAG(maj) (devopsp[(maj)]->devo_cb_ops->cb_flag)
83
84 extern int devi_identify(dev_info_t *);
85 extern int devi_probe(dev_info_t *);
86 extern int devi_attach(dev_info_t *, ddi_attach_cmd_t);
87 extern int devi_detach(dev_info_t *, ddi_detach_cmd_t);
88 extern int devi_reset(dev_info_t *, ddi_reset_cmd_t);
89 extern int devi_quiesce(dev_info_t *);
90
91 /*
92 * The following [cb]dev_* functions are not part of the DDI, use
93 * <sys/sunldi.h> defined interfaces instead.
94 */
95 extern int dev_open(dev_t *, int, int, cred_t *);
96 extern int dev_lopen(dev_t *, int, int, cred_t *);
97 extern int dev_close(dev_t, int, int, cred_t *);
98 extern int dev_lclose(dev_t, int, int, cred_t *);
99
100 extern int dev_to_instance(dev_t);
101
102 extern int bdev_strategy(struct buf *);
103 extern int bdev_print(dev_t, caddr_t);
104 extern int bdev_dump(dev_t, caddr_t, daddr_t, int);
105 extern int bdev_size(dev_t);
106 extern uint64_t bdev_Size(dev_t);
107
108 extern int cdev_read(dev_t, struct uio *, cred_t *);
109 extern int cdev_write(dev_t, struct uio *, cred_t *);
110 extern int cdev_size(dev_t);
111 extern uint64_t cdev_Size(dev_t);
112 extern int cdev_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
113 extern int cdev_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off,
114 size_t len, size_t *maplen, uint_t model);
115 extern int cdev_mmap(int (*)(dev_t, off_t, int),
116 dev_t, off_t, int);
117 extern int cdev_segmap(dev_t, off_t, struct as *, caddr_t *,
118 off_t, uint_t, uint_t, uint_t, cred_t *);
119 extern int cdev_poll(dev_t, short, int, short *, struct pollhead **);
120 extern int cdev_prop_op(dev_t, dev_info_t *, ddi_prop_op_t,
121 int, char *, caddr_t, int *);
122
123 #endif /* _KERNEL */
124
125
126 /*
127 * Device flags.
128 *
129 * Bit 0 to bit 15 are reserved for kernel.
130 * Bit 16 to bit 31 are reserved for different machines.
131 */
132
133 #define D_NEW 0x00 /* new-style driver */
134 #define _D_OLD 0x01 /* old-style driver (obsolete) */
135 #define D_TAPE 0x08 /* Magtape device (no bdwrite when cooked) */
136
137 /*
138 * MT-safety level (in DDI portion of flags).
139 *
140 * All drivers must be MT-safe, and must advertise this by specifying D_MP.
141 *
142 * The remainder of the flags apply only to STREAMS modules and drivers.
143 *
144 * A STREAMS driver or module can optionally select inner and outer perimeters.
145 * The four mutually exclusive options that define the presence and scope
146 * of the inner perimeter are:
147 * D_MTPERMOD - per module single threaded.
148 * D_MTQPAIR - per queue-pair single threaded.
149 * D_MTPERQ - per queue instance single threaded.
150 * (none of the above) - no inner perimeter restricting concurrency
151 *
152 * The presence of the outer perimeter is declared with:
153 * D_MTOUTPERIM - a per-module outer perimeter. Can be combined with
154 * D_MTPERQ, D_MTQPAIR, and D_MP.
155 *
156 * The concurrency when entering the different STREAMS entry points can be
157 * modified with:
158 * D_MTPUTSHARED - modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD
159 * specifying that the put procedures should not be
160 * single-threaded at the inner perimeter.
161 * _D_MTOCSHARED - EXPERIMENTAL - will be removed in a future release.
162 * Modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD
163 * specifying that the open and close procedures should not be
164 * single-threaded at the inner perimeter.
165 * _D_MTCBSHARED - EXPERIMENTAL - will be removed in a future release.
166 * Modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD
167 * specifying that the callback i.e qtimeout() procedures should
168 * not be single-threaded at the inner perimeter.
169 * _D_MTSVCSHARED - EXPERIMENTAL - will be removed in a future release.
170 * Modifier for D_MTPERMOD only. Specifies that the service
171 * procedure should not be single-threaded at the inner perimeter.
172 * However only a single instance of the service thread can run on
173 * any given queue.
174 * D_MTOCEXCL - modifier for D_MTOUTPERIM specifying that the open and
175 * close procedures should be single-threaded at the outer
176 * perimeter.
177 */
178 #define D_MTSAFE 0x0020 /* multi-threaded module or driver */
179 #define _D_QNEXTLESS 0x0040 /* Unused, retained for source compatibility */
180 #define _D_MTOCSHARED 0x0080 /* modify: open/close procedures are hot */
181 /* 0x100 - see below */
182 /* 0x200 - see below */
183 /* 0x400 - see below */
184 #define D_MTOCEXCL 0x0800 /* modify: open/close are exclusive at outer */
185 #define D_MTPUTSHARED 0x1000 /* modify: put procedures are hot */
186 #define D_MTPERQ 0x2000 /* per queue instance single-threaded */
187 #define D_MTQPAIR 0x4000 /* per queue-pair instance single-threaded */
188 #define D_MTPERMOD 0x6000 /* per module single-threaded */
189 #define D_MTOUTPERIM 0x8000 /* r/w outer perimeter around whole modules */
190 #define _D_MTCBSHARED 0x10000 /* modify : callback procedures are hot */
191 #define _D_MTSVCSHARED 0x20000 /* modify : service procedures are hot */
192
193 /* The inner perimeter scope bits */
194 #define D_MTINNER_MASK (D_MP|D_MTPERQ|D_MTQPAIR|D_MTPERMOD)
195
196 /* Inner perimeter modification bits */
197 #define D_MTINNER_MOD (D_MTPUTSHARED|_D_MTOCSHARED|_D_MTCBSHARED| \
198 _D_MTSVCSHARED)
199
200 /* Outer perimeter modification bits */
201 #define D_MTOUTER_MOD (D_MTOCEXCL)
202
203 /* All the MT flags */
204 #define D_MTSAFETY_MASK (D_MTINNER_MASK|D_MTOUTPERIM|D_MTPUTSHARED|\
205 D_MTINNER_MOD|D_MTOUTER_MOD)
206
207 #define D_MP D_MTSAFE /* ddi/dki approved flag */
208
209 #define D_64BIT 0x200 /* Driver supports 64-bit offsets, blk nos. */
210
211 #define D_SYNCSTR 0x400 /* Module or driver has Synchronous STREAMS */
212 /* extended qinit structure */
213
214 #define D_DEVMAP 0x100 /* Use devmap framework to mmap device */
215
216 #define D_HOTPLUG 0x4 /* Driver is hotplug capable */
217
218 #define D_U64BIT 0x40000 /* Driver supports unsigned 64-bit uio offset */
219
220 #define _D_DIRECT 0x80000 /* Private flag for transport modules */
221
222 #define D_OPEN_RETURNS_EINTR 0x100000 /* EINTR expected from open(9E) */
223
224 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
225
226 #ifdef __cplusplus
227 }
228 #endif
229
230 #endif /* _SYS_CONF_H */