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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #ifndef _SYS_CONF_H 32 #define _SYS_CONF_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 11.21 */ 35 36 #include <sys/feature_tests.h> 37 38 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 39 #include <sys/t_lock.h> 40 #endif 41 42 #ifdef __cplusplus 43 extern "C" { 44 #endif 45 46 #define FMNAMESZ 8 /* used by struct fmodsw */ 47 48 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 49 50 #ifdef _KERNEL 51 52 /* 53 * XXX Given that drivers need to include this file, 54 * <sys/systm.h> probably shouldn't be here, as 55 * it legitimizes (aka provides prototypes for) 56 * all sorts of functions that aren't in the DKI/SunDDI 57 */ 58 #include <sys/systm.h> 59 #include <sys/devops.h> 60 #include <sys/model.h> 61 #include <sys/types.h> 62 #include <sys/buf.h> 63 #include <sys/cred.h> 64 #include <sys/uio.h> 65 #include <sys/poll.h> 66 #include <vm/as.h> 67 68 typedef struct fmodsw { 69 char f_name[FMNAMESZ + 1]; 70 struct streamtab *f_str; 71 int f_flag; 72 } fmodsw_t; 73 74 extern struct dev_ops **devopsp; 75 extern int devcnt; 76 77 /* 78 * Return streams information for the driver specified by major number or 79 * NULL if device cb_ops structure is not present. 80 */ 81 #define STREAMSTAB(maj) (devopsp[(maj)] == NULL ? NULL : \ 82 (devopsp[(maj)]->devo_cb_ops == NULL ? \ 83 NULL : \ 84 devopsp[(maj)]->devo_cb_ops->cb_str)) 85 #define CBFLAG(maj) (devopsp[(maj)]->devo_cb_ops->cb_flag) 86 87 extern int devi_identify(dev_info_t *); 88 extern int devi_probe(dev_info_t *); 89 extern int devi_attach(dev_info_t *, ddi_attach_cmd_t); 90 extern int devi_detach(dev_info_t *, ddi_detach_cmd_t); 91 extern int devi_reset(dev_info_t *, ddi_reset_cmd_t); 92 93 /* 94 * The following [cb]dev_* functions are not part of the DDI, use 95 * <sys/sunldi.h> defined interfaces instead. 96 */ 97 extern int dev_open(dev_t *, int, int, cred_t *); 98 extern int dev_lopen(dev_t *, int, int, cred_t *); 99 extern int dev_close(dev_t, int, int, cred_t *); 100 extern int dev_lclose(dev_t, int, int, cred_t *); 101 102 extern int dev_to_instance(dev_t); 103 104 extern int bdev_strategy(struct buf *); 105 extern int bdev_print(dev_t, caddr_t); 106 extern int bdev_dump(dev_t, caddr_t, daddr_t, int); 107 extern int bdev_size(dev_t); 108 extern uint64_t bdev_Size(dev_t); 109 110 extern int cdev_read(dev_t, struct uio *, cred_t *); 111 extern int cdev_write(dev_t, struct uio *, cred_t *); 112 extern int cdev_size(dev_t); 113 extern uint64_t cdev_Size(dev_t); 114 extern int cdev_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 115 extern int cdev_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, 116 size_t len, size_t *maplen, uint_t model); 117 extern int cdev_mmap(int (*)(dev_t, off_t, int), 118 dev_t, off_t, int); 119 extern int cdev_segmap(dev_t, off_t, struct as *, caddr_t *, 120 off_t, uint_t, uint_t, uint_t, cred_t *); 121 extern int cdev_poll(dev_t, short, int, short *, struct pollhead **); 122 extern int cdev_prop_op(dev_t, dev_info_t *, ddi_prop_op_t, 123 int, char *, caddr_t, int *); 124 125 #endif /* _KERNEL */ 126 127 128 /* 129 * Device flags. 130 * 131 * Bit 0 to bit 15 are reserved for kernel. 132 * Bit 16 to bit 31 are reserved for different machines. 133 */ 134 135 #define D_NEW 0x00 /* new-style driver */ 136 #define _D_OLD 0x01 /* old-style driver (obsolete) */ 137 #define D_TAPE 0x08 /* Magtape device (no bdwrite when cooked) */ 138 139 /* 140 * MT-safety level (in DDI portion of flags). 141 * 142 * All drivers must be MT-safe, and must advertise this by specifying D_MP. 143 * 144 * The remainder of the flags apply only to STREAMS modules and drivers. 145 * 146 * A STREAMS driver or module can optionally select inner and outer perimeters. 147 * The four mutually exclusive options that define the presence and scope 148 * of the inner perimeter are: 149 * D_MTPERMOD - per module single threaded. 150 * D_MTQPAIR - per queue-pair single threaded. 151 * D_MTPERQ - per queue instance single threaded. 152 * (none of the above) - no inner perimeter restricting concurrency 153 * 154 * The presence of the outer perimeter is declared with: 155 * D_MTOUTPERIM - a per-module outer perimeter. Can be combined with 156 * D_MTPERQ, D_MTQPAIR, and D_MP. 157 * 158 * The concurrency when entering the different STREAMS entry points can be 159 * modified with: 160 * D_MTPUTSHARED - modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD 161 * specifying that the put procedures should not be 162 * single-threaded at the inner perimeter. 163 * _D_MTOCSHARED - EXPERIMENTAL - will be removed in a future release. 164 * Modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD 165 * specifying that the open and close procedures should not be 166 * single-threaded at the inner perimeter. 167 * _D_MTCBSHARED - EXPERIMENTAL - will be removed in a future release. 168 * Modifier for D_MTPERQ, D_MTQPAIR, and D_MTPERMOD 169 * specifying that the callback i.e qtimeout() procedures should 170 * not be single-threaded at the inner perimeter. 171 * _D_MTSVCSHARED - EXPERIMENTAL - will be removed in a future release. 172 * Modifier for D_MTPERMOD only. Specifies that the service 173 * procedure should not be single-threaded at the inner perimeter. 174 * However only a single instance of the service thread can run on 175 * any given queue. 176 * D_MTOCEXCL - modifier for D_MTOUTPERIM specifying that the open and 177 * close procedures should be single-threaded at the outer 178 * perimeter. 179 */ 180 #define D_MTSAFE 0x0020 /* multi-threaded module or driver */ 181 #define _D_QNEXTLESS 0x0040 /* Unused, retained for source compatibility */ 182 #define _D_MTOCSHARED 0x0080 /* modify: open/close procedures are hot */ 183 /* 0x100 - see below */ 184 /* 0x200 - see below */ 185 /* 0x400 - see below */ 186 #define D_MTOCEXCL 0x0800 /* modify: open/close are exclusive at outer */ 187 #define D_MTPUTSHARED 0x1000 /* modify: put procedures are hot */ 188 #define D_MTPERQ 0x2000 /* per queue instance single-threaded */ 189 #define D_MTQPAIR 0x4000 /* per queue-pair instance single-threaded */ 190 #define D_MTPERMOD 0x6000 /* per module single-threaded */ 191 #define D_MTOUTPERIM 0x8000 /* r/w outer perimeter around whole modules */ 192 #define _D_MTCBSHARED 0x10000 /* modify : callback procedures are hot */ 193 #define _D_MTSVCSHARED 0x20000 /* modify : service procedures are hot */ 194 195 /* The inner perimeter scope bits */ 196 #define D_MTINNER_MASK (D_MP|D_MTPERQ|D_MTQPAIR|D_MTPERMOD) 197 198 /* Inner perimeter modification bits */ 199 #define D_MTINNER_MOD (D_MTPUTSHARED|_D_MTOCSHARED|_D_MTCBSHARED| \ 200 _D_MTSVCSHARED) 201 202 /* Outer perimeter modification bits */ 203 #define D_MTOUTER_MOD (D_MTOCEXCL) 204 205 /* All the MT flags */ 206 #define D_MTSAFETY_MASK (D_MTINNER_MASK|D_MTOUTPERIM|D_MTPUTSHARED|\ 207 D_MTINNER_MOD|D_MTOUTER_MOD) 208 209 #define D_MP D_MTSAFE /* ddi/dki approved flag */ 210 211 #define D_64BIT 0x200 /* Driver supports 64-bit offsets, blk nos. */ 212 213 #define D_SYNCSTR 0x400 /* Module or driver has Synchronous STREAMS */ 214 /* extended qinit structure */ 215 216 #define D_DEVMAP 0x100 /* Use devmap framework to mmap device */ 217 218 #define D_HOTPLUG 0x4 /* Driver is hotplug capable */ 219 220 #define D_U64BIT 0x40000 /* Driver supports unsigned 64-bit uio offset */ 221 222 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 223 224 #ifdef __cplusplus 225 } 226 #endif 227 228 #endif /* _SYS_CONF_H */ 229