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