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 */ 238