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 * Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
28 */
29
30 #ifndef _SYS_CONF_H
31 #define _SYS_CONF_H
32
33
34 #include <sys/feature_tests.h>
35
36 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
37 #include <sys/t_lock.h>
38 #endif
39
40 #ifdef __cplusplus
41 extern "C" {
42 #endif
43
44 #define FMNAMESZ 8 /* used by struct fmodsw */
45
46 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
47
48 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
49
50 /*
51 * XXX Given that drivers need to include this file,
52 * <sys/systm.h> probably shouldn't be here, as
53 * it legitimizes (aka provides prototypes for)
54 * all sorts of functions that aren't in the DKI/SunDDI
55 */
56 #include <sys/types.h>
57 #include <sys/systm.h>
58
59 #endif /* _KERNEL || _FAKE_KERNEL */
60 #ifdef _KERNEL
61
62 #include <sys/devops.h>
63 #include <sys/model.h>
64 #include <sys/buf.h>
65 #include <sys/cred.h>
66 #include <sys/uio.h>
67 #include <sys/poll.h>
68 #include <vm/as.h>
69
70 typedef struct fmodsw {
71 char f_name[FMNAMESZ + 1];
72 struct streamtab *f_str;
73 int f_flag;
74 } fmodsw_t;
75
76 extern struct dev_ops **devopsp;
77 extern int devcnt;
78
79 /*
80 * Return streams information for the driver specified by major number or
81 * NULL if device cb_ops structure is not present.
82 */
83 #define STREAMSTAB(maj) (devopsp[(maj)] == NULL ? NULL : \
84 (devopsp[(maj)]->devo_cb_ops == NULL ? \
85 NULL : \
86 devopsp[(maj)]->devo_cb_ops->cb_str))
87 #define CBFLAG(maj) (devopsp[(maj)]->devo_cb_ops->cb_flag)
88
89 extern int devi_identify(dev_info_t *);
90 extern int devi_probe(dev_info_t *);
91 extern int devi_attach(dev_info_t *, ddi_attach_cmd_t);
92 extern int devi_detach(dev_info_t *, ddi_detach_cmd_t);
93 extern int devi_reset(dev_info_t *, ddi_reset_cmd_t);
94 extern int devi_quiesce(dev_info_t *);
95
96 /*
97 * The following [cb]dev_* functions are not part of the DDI, use
98 * <sys/sunldi.h> defined interfaces instead.
99 */
100 extern int dev_open(dev_t *, int, int, cred_t *);
101 extern int dev_lopen(dev_t *, int, int, cred_t *);
102 extern int dev_close(dev_t, int, int, cred_t *);
103 extern int dev_lclose(dev_t, int, int, cred_t *);
104
105 extern int dev_to_instance(dev_t);
106
107 extern int bdev_strategy(struct buf *);
108 extern int bdev_print(dev_t, caddr_t);
109 extern int bdev_dump(dev_t, caddr_t, daddr_t, int);
110 extern int bdev_size(dev_t);
111 extern uint64_t bdev_Size(dev_t);
112
113 extern int cdev_read(dev_t, struct uio *, cred_t *);
114 extern int cdev_write(dev_t, struct uio *, cred_t *);
115 extern int cdev_size(dev_t);
116 extern uint64_t cdev_Size(dev_t);
117 extern int cdev_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
118 extern int cdev_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off,
119 size_t len, size_t *maplen, uint_t model);
120 extern int cdev_mmap(int (*)(dev_t, off_t, int),
121 dev_t, off_t, int);
122 extern int cdev_segmap(dev_t, off_t, struct as *, caddr_t *,
123 off_t, uint_t, uint_t, uint_t, cred_t *);
124 extern int cdev_poll(dev_t, short, int, short *, struct pollhead **);
125 extern int cdev_prop_op(dev_t, dev_info_t *, ddi_prop_op_t,
126 int, char *, caddr_t, int *);
127
128 #endif /* _KERNEL */
129
130
131 /*
132 * Device flags.
133 *
134 * Bit 0 to bit 15 are reserved for kernel.
135 * Bit 16 to bit 31 are reserved for different machines.
136 */
137
138 #define D_NEW 0x00 /* new-style driver */
139 #define _D_OLD 0x01 /* old-style driver (obsolete) */
140 #define D_TAPE 0x08 /* Magtape device (no bdwrite when cooked) */
141
142 /*
143 * MT-safety level (in DDI portion of flags).
144 *
145 * All drivers must be MT-safe, and must advertise this by specifying D_MP.
146 *
147 * The remainder of the flags apply only to STREAMS modules and drivers.
148 *
149 * A STREAMS driver or module can optionally select inner and outer perimeters.
150 * The four mutually exclusive options that define the presence and scope
151 * of the inner perimeter are:
152 * D_MTPERMOD - per module single threaded.
153 * D_MTQPAIR - per queue-pair single threaded.
154 * D_MTPERQ - per queue instance single threaded.
155 * (none of the above) - no inner perimeter restricting concurrency
156 *
157 * The presence of the outer perimeter is declared with:
158 * D_MTOUTPERIM - a per-module outer perimeter. Can be combined with
159 * D_MTPERQ, D_MTQPAIR, and D_MP.
160 *
161 * The concurrency when entering the different STREAMS entry points can be
162 * modified with:
163 * D_MTPUTSHARED - modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD
164 * specifying that the put procedures should not be
165 * single-threaded at the inner perimeter.
166 * _D_MTOCSHARED - EXPERIMENTAL - will be removed in a future release.
167 * Modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD
168 * specifying that the open and close procedures should not be
169 * single-threaded at the inner perimeter.
170 * _D_MTCBSHARED - EXPERIMENTAL - will be removed in a future release.
171 * Modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD
172 * specifying that the callback i.e qtimeout() procedures should
173 * not be single-threaded at the inner perimeter.
174 * _D_MTSVCSHARED - EXPERIMENTAL - will be removed in a future release.
175 * Modifier for D_MTPERMOD only. Specifies that the service
176 * procedure should not be single-threaded at the inner perimeter.
177 * However only a single instance of the service thread can run on
178 * any given queue.
179 * D_MTOCEXCL - modifier for D_MTOUTPERIM specifying that the open and
180 * close procedures should be single-threaded at the outer
181 * perimeter.
182 */
183 #define D_MTSAFE 0x0020 /* multi-threaded module or driver */
184 #define _D_QNEXTLESS 0x0040 /* Unused, retained for source compatibility */
185 #define _D_MTOCSHARED 0x0080 /* modify: open/close procedures are hot */
186 /* 0x100 - see below */
187 /* 0x200 - see below */
188 /* 0x400 - see below */
189 #define D_MTOCEXCL 0x0800 /* modify: open/close are exclusive at outer */
190 #define D_MTPUTSHARED 0x1000 /* modify: put procedures are hot */
191 #define D_MTPERQ 0x2000 /* per queue instance single-threaded */
192 #define D_MTQPAIR 0x4000 /* per queue-pair instance single-threaded */
193 #define D_MTPERMOD 0x6000 /* per module single-threaded */
194 #define D_MTOUTPERIM 0x8000 /* r/w outer perimeter around whole modules */
195 #define _D_MTCBSHARED 0x10000 /* modify : callback procedures are hot */
196 #define _D_MTSVCSHARED 0x20000 /* modify : service procedures are hot */
197
198 /* The inner perimeter scope bits */
199 #define D_MTINNER_MASK (D_MP|D_MTPERQ|D_MTQPAIR|D_MTPERMOD)
200
201 /* Inner perimeter modification bits */
202 #define D_MTINNER_MOD (D_MTPUTSHARED|_D_MTOCSHARED|_D_MTCBSHARED| \
203 _D_MTSVCSHARED)
204
205 /* Outer perimeter modification bits */
206 #define D_MTOUTER_MOD (D_MTOCEXCL)
207
208 /* All the MT flags */
209 #define D_MTSAFETY_MASK (D_MTINNER_MASK|D_MTOUTPERIM|D_MTPUTSHARED|\
210 D_MTINNER_MOD|D_MTOUTER_MOD)
211
212 #define D_MP D_MTSAFE /* ddi/dki approved flag */
213
214 #define D_64BIT 0x200 /* Driver supports 64-bit offsets, blk nos. */
215
216 #define D_SYNCSTR 0x400 /* Module or driver has Synchronous STREAMS */
217 /* extended qinit structure */
218
219 #define D_DEVMAP 0x100 /* Use devmap framework to mmap device */
220
221 #define D_HOTPLUG 0x4 /* Driver is hotplug capable */
222
223 #define D_U64BIT 0x40000 /* Driver supports unsigned 64-bit uio offset */
224
225 #define _D_DIRECT 0x80000 /* Private flag for transport modules */
226
227 #define D_OPEN_RETURNS_EINTR 0x100000 /* EINTR expected from open(9E) */
228
229 #define _D_SINGLE_INSTANCE 0x200000 /* Module may only be pushed once */
230
231 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
232
233 #ifdef __cplusplus
234 }
235 #endif
236
237 #endif /* _SYS_CONF_H */