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c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_fabric_configfs.c | |
3 | * | |
4 | * This file contains generic fabric module configfs infrastructure for | |
5 | * TCM v4.x code | |
6 | * | |
4c76251e | 7 | * (c) Copyright 2010-2013 Datera, Inc. |
c66ac9db | 8 | * |
fd9a11d7 | 9 | * Nicholas A. Bellinger <nab@linux-iscsi.org> |
c66ac9db NB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | ****************************************************************************/ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/moduleparam.h> | |
c66ac9db NB |
24 | #include <linux/utsname.h> |
25 | #include <linux/init.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/namei.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/types.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/unistd.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/syscalls.h> | |
34 | #include <linux/configfs.h> | |
35 | ||
36 | #include <target/target_core_base.h> | |
c4795fb2 | 37 | #include <target/target_core_fabric.h> |
c66ac9db | 38 | |
e26d99ae | 39 | #include "target_core_internal.h" |
c66ac9db | 40 | #include "target_core_alua.h" |
c66ac9db NB |
41 | #include "target_core_pr.h" |
42 | ||
43 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
44 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
45 | { \ | |
968ebe75 | 46 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
c66ac9db NB |
47 | \ |
48 | cit->ct_item_ops = _item_ops; \ | |
49 | cit->ct_group_ops = _group_ops; \ | |
50 | cit->ct_attrs = _attrs; \ | |
0dc2e8d1 | 51 | cit->ct_owner = tf->tf_ops->module; \ |
6708bb27 | 52 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
53 | } |
54 | ||
9ac8928e CH |
55 | #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ |
56 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
57 | { \ | |
968ebe75 | 58 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
ef0caf8d | 59 | struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \ |
9ac8928e CH |
60 | \ |
61 | cit->ct_item_ops = _item_ops; \ | |
62 | cit->ct_group_ops = _group_ops; \ | |
63 | cit->ct_attrs = attrs; \ | |
0dc2e8d1 | 64 | cit->ct_owner = tf->tf_ops->module; \ |
9ac8928e CH |
65 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
66 | } | |
67 | ||
c66ac9db NB |
68 | /* Start of tfc_tpg_mappedlun_cit */ |
69 | ||
70 | static int target_fabric_mappedlun_link( | |
71 | struct config_item *lun_acl_ci, | |
72 | struct config_item *lun_ci) | |
73 | { | |
74 | struct se_dev_entry *deve; | |
75 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
76 | struct se_lun, lun_group); | |
77 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
78 | struct se_lun_acl, se_lun_group); | |
79 | struct se_portal_group *se_tpg; | |
80 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
03a68b44 | 81 | bool lun_access_ro; |
0ff87549 NB |
82 | |
83 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
84 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
85 | " %p to struct lun: %p\n", lun_ci, lun); | |
86 | return -EFAULT; | |
87 | } | |
c66ac9db NB |
88 | /* |
89 | * Ensure that the source port exists | |
90 | */ | |
adf653f9 CH |
91 | if (!lun->lun_se_dev) { |
92 | pr_err("Source se_lun->lun_se_dev does not exist\n"); | |
c66ac9db NB |
93 | return -EINVAL; |
94 | } | |
adf653f9 | 95 | se_tpg = lun->lun_tpg; |
c66ac9db NB |
96 | |
97 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
98 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
99 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
100 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
101 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
102 | /* | |
103 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
104 | */ | |
105 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 106 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
107 | config_item_name(wwn_ci)); |
108 | return -EINVAL; | |
109 | } | |
110 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 111 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
112 | " TPGT: %s\n", config_item_name(wwn_ci), |
113 | config_item_name(tpg_ci)); | |
114 | return -EINVAL; | |
115 | } | |
116 | /* | |
117 | * If this struct se_node_acl was dynamically generated with | |
03a68b44 AG |
118 | * tpg_1/attrib/generate_node_acls=1, use the existing |
119 | * deve->lun_access_ro value, which will be true when | |
c66ac9db NB |
120 | * tpg_1/attrib/demo_mode_write_protect=1 |
121 | */ | |
29a05dee NB |
122 | rcu_read_lock(); |
123 | deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); | |
124 | if (deve) | |
03a68b44 | 125 | lun_access_ro = deve->lun_access_ro; |
c66ac9db | 126 | else |
03a68b44 | 127 | lun_access_ro = |
e3d6f909 | 128 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
03a68b44 | 129 | se_tpg)) ? true : false; |
29a05dee | 130 | rcu_read_unlock(); |
c66ac9db NB |
131 | /* |
132 | * Determine the actual mapped LUN value user wants.. | |
133 | * | |
134 | * This value is what the SCSI Initiator actually sees the | |
6bb82612 | 135 | * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. |
c66ac9db | 136 | */ |
03a68b44 | 137 | return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access_ro); |
c66ac9db NB |
138 | } |
139 | ||
140 | static int target_fabric_mappedlun_unlink( | |
141 | struct config_item *lun_acl_ci, | |
142 | struct config_item *lun_ci) | |
143 | { | |
c66ac9db NB |
144 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
145 | struct se_lun_acl, se_lun_group); | |
29a05dee NB |
146 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
147 | struct se_lun, lun_group); | |
c66ac9db | 148 | |
adf653f9 | 149 | return core_dev_del_initiator_node_lun_acl(lun, lacl); |
c66ac9db NB |
150 | } |
151 | ||
2eafd729 CH |
152 | static struct se_lun_acl *item_to_lun_acl(struct config_item *item) |
153 | { | |
154 | return container_of(to_config_group(item), struct se_lun_acl, | |
155 | se_lun_group); | |
156 | } | |
c66ac9db | 157 | |
2eafd729 CH |
158 | static ssize_t target_fabric_mappedlun_write_protect_show( |
159 | struct config_item *item, char *page) | |
c66ac9db | 160 | { |
2eafd729 | 161 | struct se_lun_acl *lacl = item_to_lun_acl(item); |
c66ac9db NB |
162 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; |
163 | struct se_dev_entry *deve; | |
29a05dee NB |
164 | ssize_t len = 0; |
165 | ||
166 | rcu_read_lock(); | |
167 | deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); | |
168 | if (deve) { | |
03a68b44 | 169 | len = sprintf(page, "%d\n", deve->lun_access_ro); |
29a05dee NB |
170 | } |
171 | rcu_read_unlock(); | |
c66ac9db NB |
172 | |
173 | return len; | |
174 | } | |
175 | ||
2eafd729 CH |
176 | static ssize_t target_fabric_mappedlun_write_protect_store( |
177 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 178 | { |
2eafd729 | 179 | struct se_lun_acl *lacl = item_to_lun_acl(item); |
c66ac9db NB |
180 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; |
181 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
03a68b44 | 182 | unsigned long wp; |
57103d7f | 183 | int ret; |
c66ac9db | 184 | |
03a68b44 | 185 | ret = kstrtoul(page, 0, &wp); |
57103d7f JH |
186 | if (ret) |
187 | return ret; | |
c66ac9db | 188 | |
03a68b44 | 189 | if ((wp != 1) && (wp != 0)) |
c66ac9db NB |
190 | return -EINVAL; |
191 | ||
03a68b44 AG |
192 | /* wp=1 means lun_access_ro=true */ |
193 | core_update_device_list_access(lacl->mapped_lun, wp, lacl->se_lun_nacl); | |
c66ac9db | 194 | |
6708bb27 | 195 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
f2d30680 | 196 | " Mapped LUN: %llu Write Protect bit to %s\n", |
e3d6f909 | 197 | se_tpg->se_tpg_tfo->get_fabric_name(), |
03a68b44 | 198 | se_nacl->initiatorname, lacl->mapped_lun, (wp) ? "ON" : "OFF"); |
c66ac9db NB |
199 | |
200 | return count; | |
201 | ||
202 | } | |
203 | ||
2eafd729 | 204 | CONFIGFS_ATTR(target_fabric_mappedlun_, write_protect); |
c66ac9db | 205 | |
2eafd729 CH |
206 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
207 | &target_fabric_mappedlun_attr_write_protect, | |
208 | NULL, | |
209 | }; | |
c66ac9db | 210 | |
1f6fe7cb NB |
211 | static void target_fabric_mappedlun_release(struct config_item *item) |
212 | { | |
213 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
214 | struct se_lun_acl, se_lun_group); | |
215 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
216 | ||
217 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
218 | } | |
219 | ||
c66ac9db | 220 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { |
1f6fe7cb | 221 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
222 | .allow_link = target_fabric_mappedlun_link, |
223 | .drop_link = target_fabric_mappedlun_unlink, | |
224 | }; | |
225 | ||
226 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
227 | target_fabric_mappedlun_attrs); | |
228 | ||
229 | /* End of tfc_tpg_mappedlun_cit */ | |
230 | ||
12d23384 NB |
231 | /* Start of tfc_tpg_mappedlun_port_cit */ |
232 | ||
233 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
234 | struct config_group *group, | |
235 | const char *name) | |
236 | { | |
237 | return ERR_PTR(-ENOSYS); | |
238 | } | |
239 | ||
240 | static void target_core_mappedlun_stat_rmdir( | |
241 | struct config_group *group, | |
242 | struct config_item *item) | |
243 | { | |
244 | return; | |
245 | } | |
246 | ||
247 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
248 | .make_group = target_core_mappedlun_stat_mkdir, | |
249 | .drop_item = target_core_mappedlun_stat_rmdir, | |
250 | }; | |
251 | ||
252 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
253 | NULL); | |
254 | ||
255 | /* End of tfc_tpg_mappedlun_port_cit */ | |
256 | ||
2eafd729 CH |
257 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, NULL, NULL); |
258 | TF_CIT_SETUP_DRV(tpg_nacl_auth, NULL, NULL); | |
259 | TF_CIT_SETUP_DRV(tpg_nacl_param, NULL, NULL); | |
c66ac9db NB |
260 | |
261 | /* Start of tfc_tpg_nacl_base_cit */ | |
262 | ||
c66ac9db NB |
263 | static struct config_group *target_fabric_make_mappedlun( |
264 | struct config_group *group, | |
265 | const char *name) | |
266 | { | |
267 | struct se_node_acl *se_nacl = container_of(group, | |
268 | struct se_node_acl, acl_group); | |
269 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
270 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 271 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 272 | char *buf; |
f2d30680 | 273 | unsigned long long mapped_lun; |
c66ac9db NB |
274 | int ret = 0; |
275 | ||
c66ac9db | 276 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); |
6708bb27 AG |
277 | if (!buf) { |
278 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
279 | return ERR_PTR(-ENOMEM); |
280 | } | |
281 | snprintf(buf, strlen(name) + 1, "%s", name); | |
282 | /* | |
283 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
284 | */ | |
285 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 286 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
287 | " name: %s\n", buf, name); |
288 | ret = -EINVAL; | |
289 | goto out; | |
290 | } | |
291 | /* | |
292 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
293 | * Port will actually see. | |
294 | */ | |
f2d30680 | 295 | ret = kstrtoull(buf + 4, 0, &mapped_lun); |
57103d7f JH |
296 | if (ret) |
297 | goto out; | |
c66ac9db | 298 | |
fcf29481 NB |
299 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
300 | mapped_lun, &ret); | |
6708bb27 | 301 | if (!lacl) { |
12d23384 | 302 | ret = -EINVAL; |
c66ac9db | 303 | goto out; |
12d23384 NB |
304 | } |
305 | ||
c66ac9db | 306 | config_group_init_type_name(&lacl->se_lun_group, name, |
968ebe75 | 307 | &tf->tf_tpg_mappedlun_cit); |
1ae1602d | 308 | |
12d23384 | 309 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
968ebe75 | 310 | "statistics", &tf->tf_tpg_mappedlun_stat_cit); |
1ae1602d CH |
311 | configfs_add_default_group(&lacl->ml_stat_grps.stat_group, |
312 | &lacl->se_lun_group); | |
313 | ||
12d23384 | 314 | target_stat_setup_mappedlun_default_groups(lacl); |
c66ac9db NB |
315 | |
316 | kfree(buf); | |
317 | return &lacl->se_lun_group; | |
318 | out: | |
da0abaee | 319 | kfree(lacl); |
c66ac9db NB |
320 | kfree(buf); |
321 | return ERR_PTR(ret); | |
322 | } | |
323 | ||
324 | static void target_fabric_drop_mappedlun( | |
325 | struct config_group *group, | |
326 | struct config_item *item) | |
327 | { | |
12d23384 NB |
328 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
329 | struct se_lun_acl, se_lun_group); | |
12d23384 | 330 | |
1ae1602d CH |
331 | configfs_remove_default_groups(&lacl->ml_stat_grps.stat_group); |
332 | configfs_remove_default_groups(&lacl->se_lun_group); | |
12d23384 | 333 | |
c66ac9db | 334 | config_item_put(item); |
1f6fe7cb NB |
335 | } |
336 | ||
337 | static void target_fabric_nacl_base_release(struct config_item *item) | |
338 | { | |
339 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
340 | struct se_node_acl, acl_group); | |
c7d6a803 | 341 | struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf; |
1f6fe7cb | 342 | |
ef0caf8d CH |
343 | if (tf->tf_ops->fabric_cleanup_nodeacl) |
344 | tf->tf_ops->fabric_cleanup_nodeacl(se_nacl); | |
c7d6a803 | 345 | core_tpg_del_initiator_node_acl(se_nacl); |
c66ac9db NB |
346 | } |
347 | ||
348 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 349 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
350 | }; |
351 | ||
352 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
353 | .make_group = target_fabric_make_mappedlun, | |
354 | .drop_item = target_fabric_drop_mappedlun, | |
355 | }; | |
356 | ||
9ac8928e CH |
357 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
358 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
359 | |
360 | /* End of tfc_tpg_nacl_base_cit */ | |
361 | ||
12d23384 NB |
362 | /* Start of tfc_node_fabric_stats_cit */ |
363 | /* | |
364 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
365 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
366 | */ | |
367 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
368 | ||
369 | /* End of tfc_wwn_fabric_stats_cit */ | |
370 | ||
c66ac9db NB |
371 | /* Start of tfc_tpg_nacl_cit */ |
372 | ||
373 | static struct config_group *target_fabric_make_nodeacl( | |
374 | struct config_group *group, | |
375 | const char *name) | |
376 | { | |
377 | struct se_portal_group *se_tpg = container_of(group, | |
378 | struct se_portal_group, tpg_acl_group); | |
379 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
380 | struct se_node_acl *se_nacl; | |
c66ac9db | 381 | |
c7d6a803 | 382 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); |
c66ac9db | 383 | if (IS_ERR(se_nacl)) |
e1750ba2 | 384 | return ERR_CAST(se_nacl); |
c66ac9db | 385 | |
ef0caf8d CH |
386 | if (tf->tf_ops->fabric_init_nodeacl) { |
387 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); | |
c7d6a803 CH |
388 | if (ret) { |
389 | core_tpg_del_initiator_node_acl(se_nacl); | |
390 | return ERR_PTR(ret); | |
391 | } | |
392 | } | |
393 | ||
c66ac9db | 394 | config_group_init_type_name(&se_nacl->acl_group, name, |
968ebe75 | 395 | &tf->tf_tpg_nacl_base_cit); |
1ae1602d | 396 | |
c66ac9db | 397 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
968ebe75 | 398 | &tf->tf_tpg_nacl_attrib_cit); |
1ae1602d CH |
399 | configfs_add_default_group(&se_nacl->acl_attrib_group, |
400 | &se_nacl->acl_group); | |
401 | ||
c66ac9db | 402 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
968ebe75 | 403 | &tf->tf_tpg_nacl_auth_cit); |
1ae1602d CH |
404 | configfs_add_default_group(&se_nacl->acl_auth_group, |
405 | &se_nacl->acl_group); | |
406 | ||
c66ac9db | 407 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
968ebe75 | 408 | &tf->tf_tpg_nacl_param_cit); |
1ae1602d CH |
409 | configfs_add_default_group(&se_nacl->acl_param_group, |
410 | &se_nacl->acl_group); | |
411 | ||
12d23384 | 412 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
968ebe75 | 413 | "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); |
1ae1602d CH |
414 | configfs_add_default_group(&se_nacl->acl_fabric_stat_group, |
415 | &se_nacl->acl_group); | |
c66ac9db NB |
416 | |
417 | return &se_nacl->acl_group; | |
418 | } | |
419 | ||
420 | static void target_fabric_drop_nodeacl( | |
421 | struct config_group *group, | |
422 | struct config_item *item) | |
423 | { | |
c66ac9db NB |
424 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
425 | struct se_node_acl, acl_group); | |
1ae1602d CH |
426 | |
427 | configfs_remove_default_groups(&se_nacl->acl_group); | |
428 | ||
1f6fe7cb NB |
429 | /* |
430 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
431 | */ | |
c66ac9db | 432 | config_item_put(item); |
c66ac9db NB |
433 | } |
434 | ||
435 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
436 | .make_group = target_fabric_make_nodeacl, | |
437 | .drop_item = target_fabric_drop_nodeacl, | |
438 | }; | |
439 | ||
440 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
441 | ||
442 | /* End of tfc_tpg_nacl_cit */ | |
443 | ||
444 | /* Start of tfc_tpg_np_base_cit */ | |
445 | ||
1f6fe7cb NB |
446 | static void target_fabric_np_base_release(struct config_item *item) |
447 | { | |
448 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
449 | struct se_tpg_np, tpg_np_group); | |
450 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
451 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
452 | ||
ef0caf8d | 453 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
1f6fe7cb NB |
454 | } |
455 | ||
c66ac9db | 456 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 457 | .release = target_fabric_np_base_release, |
c66ac9db NB |
458 | }; |
459 | ||
9ac8928e | 460 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
461 | |
462 | /* End of tfc_tpg_np_base_cit */ | |
463 | ||
464 | /* Start of tfc_tpg_np_cit */ | |
465 | ||
466 | static struct config_group *target_fabric_make_np( | |
467 | struct config_group *group, | |
468 | const char *name) | |
469 | { | |
470 | struct se_portal_group *se_tpg = container_of(group, | |
471 | struct se_portal_group, tpg_np_group); | |
472 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
473 | struct se_tpg_np *se_tpg_np; | |
474 | ||
ef0caf8d | 475 | if (!tf->tf_ops->fabric_make_np) { |
6708bb27 | 476 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); |
c66ac9db NB |
477 | return ERR_PTR(-ENOSYS); |
478 | } | |
479 | ||
ef0caf8d | 480 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
6708bb27 | 481 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
482 | return ERR_PTR(-EINVAL); |
483 | ||
1f6fe7cb | 484 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 485 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
968ebe75 | 486 | &tf->tf_tpg_np_base_cit); |
c66ac9db NB |
487 | |
488 | return &se_tpg_np->tpg_np_group; | |
489 | } | |
490 | ||
491 | static void target_fabric_drop_np( | |
492 | struct config_group *group, | |
493 | struct config_item *item) | |
494 | { | |
1f6fe7cb NB |
495 | /* |
496 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
497 | */ | |
c66ac9db | 498 | config_item_put(item); |
c66ac9db NB |
499 | } |
500 | ||
501 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
502 | .make_group = &target_fabric_make_np, | |
503 | .drop_item = &target_fabric_drop_np, | |
504 | }; | |
505 | ||
506 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
507 | ||
508 | /* End of tfc_tpg_np_cit */ | |
509 | ||
510 | /* Start of tfc_tpg_port_cit */ | |
511 | ||
2eafd729 CH |
512 | static struct se_lun *item_to_lun(struct config_item *item) |
513 | { | |
514 | return container_of(to_config_group(item), struct se_lun, | |
515 | lun_group); | |
516 | } | |
c66ac9db | 517 | |
2eafd729 CH |
518 | static ssize_t target_fabric_port_alua_tg_pt_gp_show(struct config_item *item, |
519 | char *page) | |
c66ac9db | 520 | { |
2eafd729 CH |
521 | struct se_lun *lun = item_to_lun(item); |
522 | ||
adf653f9 | 523 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
524 | return -ENODEV; |
525 | ||
adf653f9 | 526 | return core_alua_show_tg_pt_gp_info(lun, page); |
c66ac9db NB |
527 | } |
528 | ||
2eafd729 CH |
529 | static ssize_t target_fabric_port_alua_tg_pt_gp_store(struct config_item *item, |
530 | const char *page, size_t count) | |
c66ac9db | 531 | { |
2eafd729 CH |
532 | struct se_lun *lun = item_to_lun(item); |
533 | ||
adf653f9 | 534 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
535 | return -ENODEV; |
536 | ||
adf653f9 | 537 | return core_alua_store_tg_pt_gp_info(lun, page, count); |
c66ac9db NB |
538 | } |
539 | ||
2eafd729 CH |
540 | static ssize_t target_fabric_port_alua_tg_pt_offline_show( |
541 | struct config_item *item, char *page) | |
c66ac9db | 542 | { |
2eafd729 CH |
543 | struct se_lun *lun = item_to_lun(item); |
544 | ||
adf653f9 | 545 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
546 | return -ENODEV; |
547 | ||
548 | return core_alua_show_offline_bit(lun, page); | |
549 | } | |
550 | ||
2eafd729 CH |
551 | static ssize_t target_fabric_port_alua_tg_pt_offline_store( |
552 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 553 | { |
2eafd729 CH |
554 | struct se_lun *lun = item_to_lun(item); |
555 | ||
adf653f9 | 556 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
557 | return -ENODEV; |
558 | ||
559 | return core_alua_store_offline_bit(lun, page, count); | |
560 | } | |
561 | ||
2eafd729 CH |
562 | static ssize_t target_fabric_port_alua_tg_pt_status_show( |
563 | struct config_item *item, char *page) | |
c66ac9db | 564 | { |
2eafd729 CH |
565 | struct se_lun *lun = item_to_lun(item); |
566 | ||
adf653f9 | 567 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
568 | return -ENODEV; |
569 | ||
570 | return core_alua_show_secondary_status(lun, page); | |
571 | } | |
572 | ||
2eafd729 CH |
573 | static ssize_t target_fabric_port_alua_tg_pt_status_store( |
574 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 575 | { |
2eafd729 CH |
576 | struct se_lun *lun = item_to_lun(item); |
577 | ||
adf653f9 | 578 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
579 | return -ENODEV; |
580 | ||
581 | return core_alua_store_secondary_status(lun, page, count); | |
582 | } | |
583 | ||
2eafd729 CH |
584 | static ssize_t target_fabric_port_alua_tg_pt_write_md_show( |
585 | struct config_item *item, char *page) | |
c66ac9db | 586 | { |
2eafd729 CH |
587 | struct se_lun *lun = item_to_lun(item); |
588 | ||
adf653f9 | 589 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
590 | return -ENODEV; |
591 | ||
592 | return core_alua_show_secondary_write_metadata(lun, page); | |
593 | } | |
594 | ||
2eafd729 CH |
595 | static ssize_t target_fabric_port_alua_tg_pt_write_md_store( |
596 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 597 | { |
2eafd729 CH |
598 | struct se_lun *lun = item_to_lun(item); |
599 | ||
adf653f9 | 600 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
601 | return -ENODEV; |
602 | ||
603 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
604 | } | |
605 | ||
2eafd729 CH |
606 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_gp); |
607 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_offline); | |
608 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_status); | |
609 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_write_md); | |
c66ac9db NB |
610 | |
611 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
2eafd729 CH |
612 | &target_fabric_port_attr_alua_tg_pt_gp, |
613 | &target_fabric_port_attr_alua_tg_pt_offline, | |
614 | &target_fabric_port_attr_alua_tg_pt_status, | |
615 | &target_fabric_port_attr_alua_tg_pt_write_md, | |
c66ac9db NB |
616 | NULL, |
617 | }; | |
618 | ||
c66ac9db NB |
619 | static int target_fabric_port_link( |
620 | struct config_item *lun_ci, | |
621 | struct config_item *se_dev_ci) | |
622 | { | |
623 | struct config_item *tpg_ci; | |
c66ac9db NB |
624 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
625 | struct se_lun, lun_group); | |
c66ac9db | 626 | struct se_portal_group *se_tpg; |
0fd97ccf CH |
627 | struct se_device *dev = |
628 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
629 | struct target_fabric_configfs *tf; |
630 | int ret; | |
631 | ||
0ff87549 NB |
632 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
633 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
634 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
635 | return -EFAULT; | |
636 | } | |
637 | ||
faa06ab9 NB |
638 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
639 | pr_err("se_device not configured yet, cannot port link\n"); | |
640 | return -ENODEV; | |
641 | } | |
642 | ||
c66ac9db NB |
643 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
644 | se_tpg = container_of(to_config_group(tpg_ci), | |
645 | struct se_portal_group, tpg_group); | |
646 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
647 | ||
648 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 649 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
650 | return -EEXIST; |
651 | } | |
652 | ||
6bb82612 NB |
653 | ret = core_dev_add_lun(se_tpg, dev, lun); |
654 | if (ret) { | |
655 | pr_err("core_dev_add_lun() failed: %d\n", ret); | |
c66ac9db NB |
656 | goto out; |
657 | } | |
658 | ||
ef0caf8d | 659 | if (tf->tf_ops->fabric_post_link) { |
c66ac9db NB |
660 | /* |
661 | * Call the optional fabric_post_link() to allow a | |
662 | * fabric module to setup any additional state once | |
663 | * core_dev_add_lun() has been called.. | |
664 | */ | |
ef0caf8d | 665 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
c66ac9db NB |
666 | } |
667 | ||
668 | return 0; | |
669 | out: | |
670 | return ret; | |
671 | } | |
672 | ||
673 | static int target_fabric_port_unlink( | |
674 | struct config_item *lun_ci, | |
675 | struct config_item *se_dev_ci) | |
676 | { | |
677 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
678 | struct se_lun, lun_group); | |
adf653f9 | 679 | struct se_portal_group *se_tpg = lun->lun_tpg; |
c66ac9db NB |
680 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
681 | ||
ef0caf8d | 682 | if (tf->tf_ops->fabric_pre_unlink) { |
c66ac9db NB |
683 | /* |
684 | * Call the optional fabric_pre_unlink() to allow a | |
685 | * fabric module to release any additional stat before | |
686 | * core_dev_del_lun() is called. | |
687 | */ | |
ef0caf8d | 688 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
c66ac9db NB |
689 | } |
690 | ||
cd9d7cba | 691 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
692 | return 0; |
693 | } | |
694 | ||
6bb82612 NB |
695 | static void target_fabric_port_release(struct config_item *item) |
696 | { | |
697 | struct se_lun *lun = container_of(to_config_group(item), | |
698 | struct se_lun, lun_group); | |
699 | ||
700 | kfree_rcu(lun, rcu_head); | |
701 | } | |
702 | ||
c66ac9db | 703 | static struct configfs_item_operations target_fabric_port_item_ops = { |
6bb82612 | 704 | .release = target_fabric_port_release, |
c66ac9db NB |
705 | .allow_link = target_fabric_port_link, |
706 | .drop_link = target_fabric_port_unlink, | |
707 | }; | |
708 | ||
709 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
710 | ||
711 | /* End of tfc_tpg_port_cit */ | |
712 | ||
12d23384 NB |
713 | /* Start of tfc_tpg_port_stat_cit */ |
714 | ||
715 | static struct config_group *target_core_port_stat_mkdir( | |
716 | struct config_group *group, | |
717 | const char *name) | |
718 | { | |
719 | return ERR_PTR(-ENOSYS); | |
720 | } | |
721 | ||
722 | static void target_core_port_stat_rmdir( | |
723 | struct config_group *group, | |
724 | struct config_item *item) | |
725 | { | |
726 | return; | |
727 | } | |
728 | ||
729 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
730 | .make_group = target_core_port_stat_mkdir, | |
731 | .drop_item = target_core_port_stat_rmdir, | |
732 | }; | |
733 | ||
734 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
735 | ||
736 | /* End of tfc_tpg_port_stat_cit */ | |
737 | ||
c66ac9db NB |
738 | /* Start of tfc_tpg_lun_cit */ |
739 | ||
740 | static struct config_group *target_fabric_make_lun( | |
741 | struct config_group *group, | |
742 | const char *name) | |
743 | { | |
744 | struct se_lun *lun; | |
745 | struct se_portal_group *se_tpg = container_of(group, | |
746 | struct se_portal_group, tpg_lun_group); | |
747 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
f2d30680 | 748 | unsigned long long unpacked_lun; |
12d23384 | 749 | int errno; |
c66ac9db NB |
750 | |
751 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 752 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
753 | " \"lun_$LUN_NUMBER\"\n"); |
754 | return ERR_PTR(-EINVAL); | |
755 | } | |
f2d30680 | 756 | errno = kstrtoull(name + 4, 0, &unpacked_lun); |
57103d7f JH |
757 | if (errno) |
758 | return ERR_PTR(errno); | |
c66ac9db | 759 | |
6bb82612 NB |
760 | lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); |
761 | if (IS_ERR(lun)) | |
762 | return ERR_CAST(lun); | |
c66ac9db NB |
763 | |
764 | config_group_init_type_name(&lun->lun_group, name, | |
968ebe75 | 765 | &tf->tf_tpg_port_cit); |
1ae1602d | 766 | |
12d23384 | 767 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
968ebe75 | 768 | "statistics", &tf->tf_tpg_port_stat_cit); |
1ae1602d CH |
769 | configfs_add_default_group(&lun->port_stat_grps.stat_group, |
770 | &lun->lun_group); | |
771 | ||
12d23384 | 772 | target_stat_setup_port_default_groups(lun); |
c66ac9db NB |
773 | |
774 | return &lun->lun_group; | |
775 | } | |
776 | ||
777 | static void target_fabric_drop_lun( | |
778 | struct config_group *group, | |
779 | struct config_item *item) | |
780 | { | |
12d23384 NB |
781 | struct se_lun *lun = container_of(to_config_group(item), |
782 | struct se_lun, lun_group); | |
12d23384 | 783 | |
1ae1602d CH |
784 | configfs_remove_default_groups(&lun->port_stat_grps.stat_group); |
785 | configfs_remove_default_groups(&lun->lun_group); | |
12d23384 | 786 | |
c66ac9db NB |
787 | config_item_put(item); |
788 | } | |
789 | ||
790 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
791 | .make_group = &target_fabric_make_lun, | |
792 | .drop_item = &target_fabric_drop_lun, | |
793 | }; | |
794 | ||
795 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
796 | ||
797 | /* End of tfc_tpg_lun_cit */ | |
798 | ||
2eafd729 CH |
799 | TF_CIT_SETUP_DRV(tpg_attrib, NULL, NULL); |
800 | TF_CIT_SETUP_DRV(tpg_auth, NULL, NULL); | |
801 | TF_CIT_SETUP_DRV(tpg_param, NULL, NULL); | |
c66ac9db NB |
802 | |
803 | /* Start of tfc_tpg_base_cit */ | |
c66ac9db | 804 | |
1f6fe7cb NB |
805 | static void target_fabric_tpg_release(struct config_item *item) |
806 | { | |
807 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
808 | struct se_portal_group, tpg_group); | |
809 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
810 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
811 | ||
ef0caf8d | 812 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
1f6fe7cb NB |
813 | } |
814 | ||
c66ac9db | 815 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 816 | .release = target_fabric_tpg_release, |
c66ac9db NB |
817 | }; |
818 | ||
9ac8928e | 819 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
820 | |
821 | /* End of tfc_tpg_base_cit */ | |
822 | ||
823 | /* Start of tfc_tpg_cit */ | |
824 | ||
825 | static struct config_group *target_fabric_make_tpg( | |
826 | struct config_group *group, | |
827 | const char *name) | |
828 | { | |
829 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
830 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
831 | struct se_portal_group *se_tpg; | |
832 | ||
ef0caf8d CH |
833 | if (!tf->tf_ops->fabric_make_tpg) { |
834 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
835 | return ERR_PTR(-ENOSYS); |
836 | } | |
837 | ||
ef0caf8d | 838 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); |
6708bb27 | 839 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db | 840 | return ERR_PTR(-EINVAL); |
c66ac9db NB |
841 | |
842 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
968ebe75 | 843 | &tf->tf_tpg_base_cit); |
1ae1602d | 844 | |
c66ac9db | 845 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
968ebe75 | 846 | &tf->tf_tpg_lun_cit); |
1ae1602d CH |
847 | configfs_add_default_group(&se_tpg->tpg_lun_group, |
848 | &se_tpg->tpg_group); | |
849 | ||
c66ac9db | 850 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
968ebe75 | 851 | &tf->tf_tpg_np_cit); |
1ae1602d CH |
852 | configfs_add_default_group(&se_tpg->tpg_np_group, |
853 | &se_tpg->tpg_group); | |
854 | ||
c66ac9db | 855 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
968ebe75 | 856 | &tf->tf_tpg_nacl_cit); |
1ae1602d CH |
857 | configfs_add_default_group(&se_tpg->tpg_acl_group, |
858 | &se_tpg->tpg_group); | |
859 | ||
c66ac9db | 860 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
968ebe75 | 861 | &tf->tf_tpg_attrib_cit); |
1ae1602d CH |
862 | configfs_add_default_group(&se_tpg->tpg_attrib_group, |
863 | &se_tpg->tpg_group); | |
864 | ||
e4b512e7 | 865 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
968ebe75 | 866 | &tf->tf_tpg_auth_cit); |
1ae1602d CH |
867 | configfs_add_default_group(&se_tpg->tpg_auth_group, |
868 | &se_tpg->tpg_group); | |
869 | ||
c66ac9db | 870 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
968ebe75 | 871 | &tf->tf_tpg_param_cit); |
1ae1602d CH |
872 | configfs_add_default_group(&se_tpg->tpg_param_group, |
873 | &se_tpg->tpg_group); | |
c66ac9db NB |
874 | |
875 | return &se_tpg->tpg_group; | |
876 | } | |
877 | ||
878 | static void target_fabric_drop_tpg( | |
879 | struct config_group *group, | |
880 | struct config_item *item) | |
881 | { | |
c66ac9db NB |
882 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
883 | struct se_portal_group, tpg_group); | |
c66ac9db | 884 | |
1ae1602d | 885 | configfs_remove_default_groups(&se_tpg->tpg_group); |
c66ac9db | 886 | config_item_put(item); |
c66ac9db NB |
887 | } |
888 | ||
1f6fe7cb NB |
889 | static void target_fabric_release_wwn(struct config_item *item) |
890 | { | |
891 | struct se_wwn *wwn = container_of(to_config_group(item), | |
892 | struct se_wwn, wwn_group); | |
893 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
894 | ||
ef0caf8d | 895 | tf->tf_ops->fabric_drop_wwn(wwn); |
1f6fe7cb NB |
896 | } |
897 | ||
898 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
899 | .release = target_fabric_release_wwn, | |
900 | }; | |
901 | ||
c66ac9db NB |
902 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
903 | .make_group = target_fabric_make_tpg, | |
904 | .drop_item = target_fabric_drop_tpg, | |
905 | }; | |
906 | ||
1f6fe7cb NB |
907 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
908 | NULL); | |
c66ac9db NB |
909 | |
910 | /* End of tfc_tpg_cit */ | |
911 | ||
12d23384 NB |
912 | /* Start of tfc_wwn_fabric_stats_cit */ |
913 | /* | |
914 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
915 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
916 | */ | |
917 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
918 | ||
919 | /* End of tfc_wwn_fabric_stats_cit */ | |
920 | ||
c66ac9db NB |
921 | /* Start of tfc_wwn_cit */ |
922 | ||
923 | static struct config_group *target_fabric_make_wwn( | |
924 | struct config_group *group, | |
925 | const char *name) | |
926 | { | |
927 | struct target_fabric_configfs *tf = container_of(group, | |
928 | struct target_fabric_configfs, tf_group); | |
929 | struct se_wwn *wwn; | |
930 | ||
ef0caf8d | 931 | if (!tf->tf_ops->fabric_make_wwn) { |
6708bb27 | 932 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); |
c66ac9db NB |
933 | return ERR_PTR(-ENOSYS); |
934 | } | |
935 | ||
ef0caf8d | 936 | wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); |
6708bb27 | 937 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
938 | return ERR_PTR(-EINVAL); |
939 | ||
940 | wwn->wwn_tf = tf; | |
12d23384 | 941 | |
968ebe75 | 942 | config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit); |
1ae1602d | 943 | |
12d23384 | 944 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
968ebe75 | 945 | &tf->tf_wwn_fabric_stats_cit); |
1ae1602d | 946 | configfs_add_default_group(&wwn->fabric_stat_group, &wwn->wwn_group); |
c66ac9db NB |
947 | |
948 | return &wwn->wwn_group; | |
949 | } | |
950 | ||
951 | static void target_fabric_drop_wwn( | |
952 | struct config_group *group, | |
953 | struct config_item *item) | |
954 | { | |
12d23384 NB |
955 | struct se_wwn *wwn = container_of(to_config_group(item), |
956 | struct se_wwn, wwn_group); | |
12d23384 | 957 | |
1ae1602d | 958 | configfs_remove_default_groups(&wwn->wwn_group); |
c66ac9db | 959 | config_item_put(item); |
c66ac9db NB |
960 | } |
961 | ||
962 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
963 | .make_group = target_fabric_make_wwn, | |
964 | .drop_item = target_fabric_drop_wwn, | |
965 | }; | |
c66ac9db | 966 | |
2eafd729 CH |
967 | TF_CIT_SETUP_DRV(wwn, NULL, &target_fabric_wwn_group_ops); |
968 | TF_CIT_SETUP_DRV(discovery, NULL, NULL); | |
c66ac9db NB |
969 | |
970 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
971 | { | |
972 | target_fabric_setup_discovery_cit(tf); | |
973 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 974 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
975 | target_fabric_setup_tpg_cit(tf); |
976 | target_fabric_setup_tpg_base_cit(tf); | |
977 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 978 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
979 | target_fabric_setup_tpg_lun_cit(tf); |
980 | target_fabric_setup_tpg_np_cit(tf); | |
981 | target_fabric_setup_tpg_np_base_cit(tf); | |
982 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 983 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
984 | target_fabric_setup_tpg_param_cit(tf); |
985 | target_fabric_setup_tpg_nacl_cit(tf); | |
986 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
987 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
988 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
989 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 990 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 991 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 992 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
993 | |
994 | return 0; | |
995 | } |