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 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <fcntl.h>
30 #include <libdevinfo.h>
31 #include <stdlib.h>
32 #include <sys/sunddi.h>
33 #include <sys/types.h>
34 #include <sys/scsi/conf/autoconf.h>
35
36 #include "libdiskmgt.h"
37 #include "disks_private.h"
38
39 static descriptor_t **get_assoc_buses(descriptor_t *desc, int *errp);
40 static descriptor_t **get_assoc_drives(descriptor_t *desc, int *errp);
41 static descriptor_t **get_assoc_paths(descriptor_t *desc, int *errp);
42
43 descriptor_t **
controller_get_assoc_descriptors(descriptor_t * desc,dm_desc_type_t type,int * errp)44 controller_get_assoc_descriptors(descriptor_t *desc, dm_desc_type_t type,
45 int *errp)
46 {
47 switch (type) {
48 case DM_DRIVE:
49 return (get_assoc_drives(desc, errp));
50 case DM_PATH:
51 return (get_assoc_paths(desc, errp));
52 case DM_BUS:
53 return (get_assoc_buses(desc, errp));
54 }
55
56 *errp = EINVAL;
57 return (NULL);
58 }
59
60 nvlist_t *
controller_get_attributes(descriptor_t * dp,int * errp)61 controller_get_attributes(descriptor_t *dp, int *errp)
62 {
63 controller_t *cp;
64 nvlist_t *attrs;
65
66 if (nvlist_alloc(&attrs, NVATTRS, 0) != 0) {
67 *errp = ENOMEM;
68 return (NULL);
69 }
70
71 cp = dp->p.controller;
72
73 if (nvlist_add_string(attrs, DM_CTYPE, cp->ctype) != 0) {
74 nvlist_free(attrs);
75 *errp = ENOMEM;
76 return (NULL);
77 }
78
79 if (cp->multiplex) {
80 if (nvlist_add_boolean(attrs, DM_MULTIPLEX) != 0) {
81 nvlist_free(attrs);
82 *errp = ENOMEM;
83 return (NULL);
84 }
85 }
86
87 if (cp->scsi_options != -1) {
88 if (cp->scsi_options & SCSI_OPTIONS_FAST) {
89 if (nvlist_add_boolean(attrs, DM_FAST) != 0) {
90 nvlist_free(attrs);
91 *errp = ENOMEM;
92 return (NULL);
93 }
94 }
95 if (cp->scsi_options & SCSI_OPTIONS_WIDE) {
96 if (nvlist_add_boolean(attrs, DM_WIDE) != 0) {
97 nvlist_free(attrs);
98 *errp = ENOMEM;
99 return (NULL);
100 }
101 }
102 if (cp->scsi_options & SCSI_OPTIONS_FAST20) {
103 if (nvlist_add_boolean(attrs, DM_FAST20) != 0) {
104 nvlist_free(attrs);
105 *errp = ENOMEM;
106 return (NULL);
107 }
108 }
109 if (cp->scsi_options & SCSI_OPTIONS_FAST40) {
110 if (nvlist_add_boolean(attrs, DM_FAST40) != 0) {
111 nvlist_free(attrs);
112 *errp = ENOMEM;
113 return (NULL);
114 }
115 }
116 if (cp->scsi_options & SCSI_OPTIONS_FAST80) {
117 if (nvlist_add_boolean(attrs, DM_FAST80) != 0) {
118 nvlist_free(attrs);
119 *errp = ENOMEM;
120 return (NULL);
121 }
122 }
123 }
124
125 if (cp->freq != 0) {
126 if (nvlist_add_uint32(attrs, DM_CLOCK, cp->freq) != 0) {
127 nvlist_free(attrs);
128 *errp = ENOMEM;
129 return (NULL);
130 }
131 }
132
133 *errp = 0;
134 return (attrs);
135 }
136
137 descriptor_t *
controller_get_descriptor_by_name(char * name,int * errp)138 controller_get_descriptor_by_name(char *name, int *errp)
139 {
140 descriptor_t **controllers;
141 int i;
142 descriptor_t *controller = NULL;
143
144 controllers = cache_get_descriptors(DM_CONTROLLER, errp);
145 if (*errp != 0) {
146 return (NULL);
147 }
148
149 for (i = 0; controllers[i]; i++) {
150 if (libdiskmgt_str_eq(name, controllers[i]->p.controller->name)) {
151 controller = controllers[i];
152 } else {
153 /* clean up the unused descriptors */
154 cache_free_descriptor(controllers[i]);
155 }
156 }
157 free(controllers);
158
159 if (controller == NULL) {
160 *errp = ENODEV;
161 }
162
163 return (controller);
164 }
165
166 /* ARGSUSED */
167 descriptor_t **
controller_get_descriptors(int filter[],int * errp)168 controller_get_descriptors(int filter[], int *errp)
169 {
170 return (cache_get_descriptors(DM_CONTROLLER, errp));
171 }
172
173 char *
controller_get_name(descriptor_t * desc)174 controller_get_name(descriptor_t *desc)
175 {
176 return (desc->p.controller->name);
177 }
178
179 /* ARGSUSED */
180 nvlist_t *
controller_get_stats(descriptor_t * dp,int stat_type,int * errp)181 controller_get_stats(descriptor_t *dp, int stat_type, int *errp)
182 {
183 /* There are no stat types defined for controllers */
184 *errp = EINVAL;
185 return (NULL);
186 }
187
188 int
controller_make_descriptors()189 controller_make_descriptors()
190 {
191 int error;
192 controller_t *cp;
193
194 cp = cache_get_controllerlist();
195 while (cp != NULL) {
196 cache_load_desc(DM_CONTROLLER, cp, NULL, NULL, &error);
197 if (error != 0) {
198 return (error);
199 }
200 cp = cp->next;
201 }
202
203 return (0);
204 }
205
206 static descriptor_t **
get_assoc_buses(descriptor_t * desc,int * errp)207 get_assoc_buses(descriptor_t *desc, int *errp)
208 {
209 controller_t *cp;
210 descriptor_t **buses;
211 int pos = 0;
212
213 cp = desc->p.controller;
214
215 /* make the snapshot */
216 buses = (descriptor_t **)calloc(2, sizeof (descriptor_t *));
217 if (buses == NULL) {
218 *errp = ENOMEM;
219 return (NULL);
220 }
221
222 if (cp->bus != NULL) {
223 buses[pos++] = cache_get_desc(DM_BUS, cp->bus, NULL, NULL, errp);
224 if (*errp != 0) {
225 cache_free_descriptors(buses);
226 return (NULL);
227 }
228 }
229 buses[pos] = NULL;
230
231 *errp = 0;
232 return (buses);
233 }
234
235 static descriptor_t **
get_assoc_drives(descriptor_t * desc,int * errp)236 get_assoc_drives(descriptor_t *desc, int *errp)
237 {
238 controller_t *cp;
239 descriptor_t **drives;
240 int cnt;
241 int i;
242
243 cp = desc->p.controller;
244
245 /* Count how many we have. */
246 for (cnt = 0; cp->disks[cnt]; cnt++);
247
248 /* make the snapshot */
249 drives = (descriptor_t **)calloc(cnt + 1, sizeof (descriptor_t *));
250 if (drives == NULL) {
251 *errp = ENOMEM;
252 return (NULL);
253 }
254
255 for (i = 0; cp->disks[i]; i++) {
256 drives[i] = cache_get_desc(DM_DRIVE, cp->disks[i], NULL, NULL,
257 errp);
258 if (*errp != 0) {
259 cache_free_descriptors(drives);
260 return (NULL);
261 }
262 }
263 drives[i] = NULL;
264
265 *errp = 0;
266 return (drives);
267 }
268
269 static descriptor_t **
get_assoc_paths(descriptor_t * desc,int * errp)270 get_assoc_paths(descriptor_t *desc, int *errp)
271 {
272 path_t **pp;
273 int cnt;
274 descriptor_t **paths;
275 int i;
276
277 pp = desc->p.controller->paths;
278
279 /* Count how many we have. */
280 cnt = 0;
281 if (pp != NULL) {
282 for (; pp[cnt]; cnt++);
283 }
284
285 /* make the snapshot */
286 paths = (descriptor_t **)calloc(cnt + 1, sizeof (descriptor_t *));
287 if (paths == NULL) {
288 *errp = ENOMEM;
289 return (NULL);
290 }
291
292 /*
293 * The name field of the descriptor is not filled in. Thus, we
294 * know not to try to lookup drive-path state information within
295 * the path code if we try to get attributes for this descriptor.
296 */
297 for (i = 0; i < cnt; i++) {
298 paths[i] = cache_get_desc(DM_PATH, pp[i], NULL, NULL, errp);
299 if (*errp != 0) {
300 cache_free_descriptors(paths);
301 return (NULL);
302 }
303 }
304
305 paths[i] = NULL;
306
307 *errp = 0;
308 return (paths);
309 }
310