Commit | Line | Data |
---|---|---|
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); | |
1f6fe7cb | 341 | |
ce7043fd | 342 | configfs_remove_default_groups(&se_nacl->acl_fabric_stat_group); |
c7d6a803 | 343 | core_tpg_del_initiator_node_acl(se_nacl); |
c66ac9db NB |
344 | } |
345 | ||
346 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 347 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
348 | }; |
349 | ||
350 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
351 | .make_group = target_fabric_make_mappedlun, | |
352 | .drop_item = target_fabric_drop_mappedlun, | |
353 | }; | |
354 | ||
9ac8928e CH |
355 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
356 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
357 | |
358 | /* End of tfc_tpg_nacl_base_cit */ | |
359 | ||
12d23384 NB |
360 | /* Start of tfc_node_fabric_stats_cit */ |
361 | /* | |
362 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
363 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
364 | */ | |
365 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
366 | ||
367 | /* End of tfc_wwn_fabric_stats_cit */ | |
368 | ||
c66ac9db NB |
369 | /* Start of tfc_tpg_nacl_cit */ |
370 | ||
371 | static struct config_group *target_fabric_make_nodeacl( | |
372 | struct config_group *group, | |
373 | const char *name) | |
374 | { | |
375 | struct se_portal_group *se_tpg = container_of(group, | |
376 | struct se_portal_group, tpg_acl_group); | |
377 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
378 | struct se_node_acl *se_nacl; | |
c66ac9db | 379 | |
c7d6a803 | 380 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); |
c66ac9db | 381 | if (IS_ERR(se_nacl)) |
e1750ba2 | 382 | return ERR_CAST(se_nacl); |
c66ac9db | 383 | |
c66ac9db | 384 | config_group_init_type_name(&se_nacl->acl_group, name, |
968ebe75 | 385 | &tf->tf_tpg_nacl_base_cit); |
1ae1602d | 386 | |
c66ac9db | 387 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
968ebe75 | 388 | &tf->tf_tpg_nacl_attrib_cit); |
1ae1602d CH |
389 | configfs_add_default_group(&se_nacl->acl_attrib_group, |
390 | &se_nacl->acl_group); | |
391 | ||
c66ac9db | 392 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
968ebe75 | 393 | &tf->tf_tpg_nacl_auth_cit); |
1ae1602d CH |
394 | configfs_add_default_group(&se_nacl->acl_auth_group, |
395 | &se_nacl->acl_group); | |
396 | ||
c66ac9db | 397 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
968ebe75 | 398 | &tf->tf_tpg_nacl_param_cit); |
1ae1602d CH |
399 | configfs_add_default_group(&se_nacl->acl_param_group, |
400 | &se_nacl->acl_group); | |
401 | ||
12d23384 | 402 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
968ebe75 | 403 | "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); |
1ae1602d CH |
404 | configfs_add_default_group(&se_nacl->acl_fabric_stat_group, |
405 | &se_nacl->acl_group); | |
c66ac9db | 406 | |
e6e202ed CH |
407 | if (tf->tf_ops->fabric_init_nodeacl) { |
408 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); | |
409 | if (ret) { | |
410 | configfs_remove_default_groups(&se_nacl->acl_fabric_stat_group); | |
411 | core_tpg_del_initiator_node_acl(se_nacl); | |
412 | return ERR_PTR(ret); | |
413 | } | |
414 | } | |
415 | ||
c66ac9db NB |
416 | return &se_nacl->acl_group; |
417 | } | |
418 | ||
419 | static void target_fabric_drop_nodeacl( | |
420 | struct config_group *group, | |
421 | struct config_item *item) | |
422 | { | |
c66ac9db NB |
423 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
424 | struct se_node_acl, acl_group); | |
1ae1602d CH |
425 | |
426 | configfs_remove_default_groups(&se_nacl->acl_group); | |
427 | ||
1f6fe7cb NB |
428 | /* |
429 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
430 | */ | |
c66ac9db | 431 | config_item_put(item); |
c66ac9db NB |
432 | } |
433 | ||
434 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
435 | .make_group = target_fabric_make_nodeacl, | |
436 | .drop_item = target_fabric_drop_nodeacl, | |
437 | }; | |
438 | ||
439 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
440 | ||
441 | /* End of tfc_tpg_nacl_cit */ | |
442 | ||
443 | /* Start of tfc_tpg_np_base_cit */ | |
444 | ||
1f6fe7cb NB |
445 | static void target_fabric_np_base_release(struct config_item *item) |
446 | { | |
447 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
448 | struct se_tpg_np, tpg_np_group); | |
449 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
450 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
451 | ||
ef0caf8d | 452 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
1f6fe7cb NB |
453 | } |
454 | ||
c66ac9db | 455 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 456 | .release = target_fabric_np_base_release, |
c66ac9db NB |
457 | }; |
458 | ||
9ac8928e | 459 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
460 | |
461 | /* End of tfc_tpg_np_base_cit */ | |
462 | ||
463 | /* Start of tfc_tpg_np_cit */ | |
464 | ||
465 | static struct config_group *target_fabric_make_np( | |
466 | struct config_group *group, | |
467 | const char *name) | |
468 | { | |
469 | struct se_portal_group *se_tpg = container_of(group, | |
470 | struct se_portal_group, tpg_np_group); | |
471 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
472 | struct se_tpg_np *se_tpg_np; | |
473 | ||
ef0caf8d | 474 | if (!tf->tf_ops->fabric_make_np) { |
6708bb27 | 475 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); |
c66ac9db NB |
476 | return ERR_PTR(-ENOSYS); |
477 | } | |
478 | ||
ef0caf8d | 479 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
6708bb27 | 480 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
481 | return ERR_PTR(-EINVAL); |
482 | ||
1f6fe7cb | 483 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 484 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
968ebe75 | 485 | &tf->tf_tpg_np_base_cit); |
c66ac9db NB |
486 | |
487 | return &se_tpg_np->tpg_np_group; | |
488 | } | |
489 | ||
490 | static void target_fabric_drop_np( | |
491 | struct config_group *group, | |
492 | struct config_item *item) | |
493 | { | |
1f6fe7cb NB |
494 | /* |
495 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
496 | */ | |
c66ac9db | 497 | config_item_put(item); |
c66ac9db NB |
498 | } |
499 | ||
500 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
501 | .make_group = &target_fabric_make_np, | |
502 | .drop_item = &target_fabric_drop_np, | |
503 | }; | |
504 | ||
505 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
506 | ||
507 | /* End of tfc_tpg_np_cit */ | |
508 | ||
509 | /* Start of tfc_tpg_port_cit */ | |
510 | ||
2eafd729 CH |
511 | static struct se_lun *item_to_lun(struct config_item *item) |
512 | { | |
513 | return container_of(to_config_group(item), struct se_lun, | |
514 | lun_group); | |
515 | } | |
c66ac9db | 516 | |
2eafd729 CH |
517 | static ssize_t target_fabric_port_alua_tg_pt_gp_show(struct config_item *item, |
518 | char *page) | |
c66ac9db | 519 | { |
2eafd729 CH |
520 | struct se_lun *lun = item_to_lun(item); |
521 | ||
adf653f9 | 522 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
523 | return -ENODEV; |
524 | ||
adf653f9 | 525 | return core_alua_show_tg_pt_gp_info(lun, page); |
c66ac9db NB |
526 | } |
527 | ||
2eafd729 CH |
528 | static ssize_t target_fabric_port_alua_tg_pt_gp_store(struct config_item *item, |
529 | const char *page, size_t count) | |
c66ac9db | 530 | { |
2eafd729 CH |
531 | struct se_lun *lun = item_to_lun(item); |
532 | ||
adf653f9 | 533 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
534 | return -ENODEV; |
535 | ||
adf653f9 | 536 | return core_alua_store_tg_pt_gp_info(lun, page, count); |
c66ac9db NB |
537 | } |
538 | ||
2eafd729 CH |
539 | static ssize_t target_fabric_port_alua_tg_pt_offline_show( |
540 | struct config_item *item, char *page) | |
c66ac9db | 541 | { |
2eafd729 CH |
542 | struct se_lun *lun = item_to_lun(item); |
543 | ||
adf653f9 | 544 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
545 | return -ENODEV; |
546 | ||
547 | return core_alua_show_offline_bit(lun, page); | |
548 | } | |
549 | ||
2eafd729 CH |
550 | static ssize_t target_fabric_port_alua_tg_pt_offline_store( |
551 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 552 | { |
2eafd729 CH |
553 | struct se_lun *lun = item_to_lun(item); |
554 | ||
adf653f9 | 555 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
556 | return -ENODEV; |
557 | ||
558 | return core_alua_store_offline_bit(lun, page, count); | |
559 | } | |
560 | ||
2eafd729 CH |
561 | static ssize_t target_fabric_port_alua_tg_pt_status_show( |
562 | struct config_item *item, char *page) | |
c66ac9db | 563 | { |
2eafd729 CH |
564 | struct se_lun *lun = item_to_lun(item); |
565 | ||
adf653f9 | 566 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
567 | return -ENODEV; |
568 | ||
569 | return core_alua_show_secondary_status(lun, page); | |
570 | } | |
571 | ||
2eafd729 CH |
572 | static ssize_t target_fabric_port_alua_tg_pt_status_store( |
573 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 574 | { |
2eafd729 CH |
575 | struct se_lun *lun = item_to_lun(item); |
576 | ||
adf653f9 | 577 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
578 | return -ENODEV; |
579 | ||
580 | return core_alua_store_secondary_status(lun, page, count); | |
581 | } | |
582 | ||
2eafd729 CH |
583 | static ssize_t target_fabric_port_alua_tg_pt_write_md_show( |
584 | struct config_item *item, char *page) | |
c66ac9db | 585 | { |
2eafd729 CH |
586 | struct se_lun *lun = item_to_lun(item); |
587 | ||
adf653f9 | 588 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
589 | return -ENODEV; |
590 | ||
591 | return core_alua_show_secondary_write_metadata(lun, page); | |
592 | } | |
593 | ||
2eafd729 CH |
594 | static ssize_t target_fabric_port_alua_tg_pt_write_md_store( |
595 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 596 | { |
2eafd729 CH |
597 | struct se_lun *lun = item_to_lun(item); |
598 | ||
adf653f9 | 599 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
600 | return -ENODEV; |
601 | ||
602 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
603 | } | |
604 | ||
2eafd729 CH |
605 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_gp); |
606 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_offline); | |
607 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_status); | |
608 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_write_md); | |
c66ac9db NB |
609 | |
610 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
2eafd729 CH |
611 | &target_fabric_port_attr_alua_tg_pt_gp, |
612 | &target_fabric_port_attr_alua_tg_pt_offline, | |
613 | &target_fabric_port_attr_alua_tg_pt_status, | |
614 | &target_fabric_port_attr_alua_tg_pt_write_md, | |
c66ac9db NB |
615 | NULL, |
616 | }; | |
617 | ||
c66ac9db NB |
618 | static int target_fabric_port_link( |
619 | struct config_item *lun_ci, | |
620 | struct config_item *se_dev_ci) | |
621 | { | |
622 | struct config_item *tpg_ci; | |
c66ac9db NB |
623 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
624 | struct se_lun, lun_group); | |
c66ac9db | 625 | struct se_portal_group *se_tpg; |
0fd97ccf CH |
626 | struct se_device *dev = |
627 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
628 | struct target_fabric_configfs *tf; |
629 | int ret; | |
630 | ||
0ff87549 NB |
631 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
632 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
633 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
634 | return -EFAULT; | |
635 | } | |
636 | ||
faa06ab9 NB |
637 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
638 | pr_err("se_device not configured yet, cannot port link\n"); | |
639 | return -ENODEV; | |
640 | } | |
641 | ||
c66ac9db NB |
642 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
643 | se_tpg = container_of(to_config_group(tpg_ci), | |
644 | struct se_portal_group, tpg_group); | |
645 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
646 | ||
647 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 648 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
649 | return -EEXIST; |
650 | } | |
651 | ||
6bb82612 NB |
652 | ret = core_dev_add_lun(se_tpg, dev, lun); |
653 | if (ret) { | |
654 | pr_err("core_dev_add_lun() failed: %d\n", ret); | |
c66ac9db NB |
655 | goto out; |
656 | } | |
657 | ||
ef0caf8d | 658 | if (tf->tf_ops->fabric_post_link) { |
c66ac9db NB |
659 | /* |
660 | * Call the optional fabric_post_link() to allow a | |
661 | * fabric module to setup any additional state once | |
662 | * core_dev_add_lun() has been called.. | |
663 | */ | |
ef0caf8d | 664 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
c66ac9db NB |
665 | } |
666 | ||
667 | return 0; | |
668 | out: | |
669 | return ret; | |
670 | } | |
671 | ||
672 | static int target_fabric_port_unlink( | |
673 | struct config_item *lun_ci, | |
674 | struct config_item *se_dev_ci) | |
675 | { | |
676 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
677 | struct se_lun, lun_group); | |
adf653f9 | 678 | struct se_portal_group *se_tpg = lun->lun_tpg; |
c66ac9db NB |
679 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
680 | ||
ef0caf8d | 681 | if (tf->tf_ops->fabric_pre_unlink) { |
c66ac9db NB |
682 | /* |
683 | * Call the optional fabric_pre_unlink() to allow a | |
684 | * fabric module to release any additional stat before | |
685 | * core_dev_del_lun() is called. | |
686 | */ | |
ef0caf8d | 687 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
c66ac9db NB |
688 | } |
689 | ||
cd9d7cba | 690 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
691 | return 0; |
692 | } | |
693 | ||
6bb82612 NB |
694 | static void target_fabric_port_release(struct config_item *item) |
695 | { | |
696 | struct se_lun *lun = container_of(to_config_group(item), | |
697 | struct se_lun, lun_group); | |
698 | ||
699 | kfree_rcu(lun, rcu_head); | |
700 | } | |
701 | ||
c66ac9db | 702 | static struct configfs_item_operations target_fabric_port_item_ops = { |
6bb82612 | 703 | .release = target_fabric_port_release, |
c66ac9db NB |
704 | .allow_link = target_fabric_port_link, |
705 | .drop_link = target_fabric_port_unlink, | |
706 | }; | |
707 | ||
708 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
709 | ||
710 | /* End of tfc_tpg_port_cit */ | |
711 | ||
12d23384 NB |
712 | /* Start of tfc_tpg_port_stat_cit */ |
713 | ||
714 | static struct config_group *target_core_port_stat_mkdir( | |
715 | struct config_group *group, | |
716 | const char *name) | |
717 | { | |
718 | return ERR_PTR(-ENOSYS); | |
719 | } | |
720 | ||
721 | static void target_core_port_stat_rmdir( | |
722 | struct config_group *group, | |
723 | struct config_item *item) | |
724 | { | |
725 | return; | |
726 | } | |
727 | ||
728 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
729 | .make_group = target_core_port_stat_mkdir, | |
730 | .drop_item = target_core_port_stat_rmdir, | |
731 | }; | |
732 | ||
733 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
734 | ||
735 | /* End of tfc_tpg_port_stat_cit */ | |
736 | ||
c66ac9db NB |
737 | /* Start of tfc_tpg_lun_cit */ |
738 | ||
739 | static struct config_group *target_fabric_make_lun( | |
740 | struct config_group *group, | |
741 | const char *name) | |
742 | { | |
743 | struct se_lun *lun; | |
744 | struct se_portal_group *se_tpg = container_of(group, | |
745 | struct se_portal_group, tpg_lun_group); | |
746 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
f2d30680 | 747 | unsigned long long unpacked_lun; |
12d23384 | 748 | int errno; |
c66ac9db NB |
749 | |
750 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 751 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
752 | " \"lun_$LUN_NUMBER\"\n"); |
753 | return ERR_PTR(-EINVAL); | |
754 | } | |
f2d30680 | 755 | errno = kstrtoull(name + 4, 0, &unpacked_lun); |
57103d7f JH |
756 | if (errno) |
757 | return ERR_PTR(errno); | |
c66ac9db | 758 | |
6bb82612 NB |
759 | lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); |
760 | if (IS_ERR(lun)) | |
761 | return ERR_CAST(lun); | |
c66ac9db NB |
762 | |
763 | config_group_init_type_name(&lun->lun_group, name, | |
968ebe75 | 764 | &tf->tf_tpg_port_cit); |
1ae1602d | 765 | |
12d23384 | 766 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
968ebe75 | 767 | "statistics", &tf->tf_tpg_port_stat_cit); |
1ae1602d CH |
768 | configfs_add_default_group(&lun->port_stat_grps.stat_group, |
769 | &lun->lun_group); | |
770 | ||
12d23384 | 771 | target_stat_setup_port_default_groups(lun); |
c66ac9db NB |
772 | |
773 | return &lun->lun_group; | |
774 | } | |
775 | ||
776 | static void target_fabric_drop_lun( | |
777 | struct config_group *group, | |
778 | struct config_item *item) | |
779 | { | |
12d23384 NB |
780 | struct se_lun *lun = container_of(to_config_group(item), |
781 | struct se_lun, lun_group); | |
12d23384 | 782 | |
1ae1602d CH |
783 | configfs_remove_default_groups(&lun->port_stat_grps.stat_group); |
784 | configfs_remove_default_groups(&lun->lun_group); | |
12d23384 | 785 | |
c66ac9db NB |
786 | config_item_put(item); |
787 | } | |
788 | ||
789 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
790 | .make_group = &target_fabric_make_lun, | |
791 | .drop_item = &target_fabric_drop_lun, | |
792 | }; | |
793 | ||
794 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
795 | ||
796 | /* End of tfc_tpg_lun_cit */ | |
797 | ||
2eafd729 CH |
798 | TF_CIT_SETUP_DRV(tpg_attrib, NULL, NULL); |
799 | TF_CIT_SETUP_DRV(tpg_auth, NULL, NULL); | |
800 | TF_CIT_SETUP_DRV(tpg_param, NULL, NULL); | |
c66ac9db NB |
801 | |
802 | /* Start of tfc_tpg_base_cit */ | |
c66ac9db | 803 | |
1f6fe7cb NB |
804 | static void target_fabric_tpg_release(struct config_item *item) |
805 | { | |
806 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
807 | struct se_portal_group, tpg_group); | |
808 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
809 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
810 | ||
ef0caf8d | 811 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
1f6fe7cb NB |
812 | } |
813 | ||
c66ac9db | 814 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 815 | .release = target_fabric_tpg_release, |
c66ac9db NB |
816 | }; |
817 | ||
9ac8928e | 818 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
819 | |
820 | /* End of tfc_tpg_base_cit */ | |
821 | ||
822 | /* Start of tfc_tpg_cit */ | |
823 | ||
824 | static struct config_group *target_fabric_make_tpg( | |
825 | struct config_group *group, | |
826 | const char *name) | |
827 | { | |
828 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
829 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
830 | struct se_portal_group *se_tpg; | |
831 | ||
ef0caf8d CH |
832 | if (!tf->tf_ops->fabric_make_tpg) { |
833 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
834 | return ERR_PTR(-ENOSYS); |
835 | } | |
836 | ||
ef0caf8d | 837 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); |
6708bb27 | 838 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db | 839 | return ERR_PTR(-EINVAL); |
c66ac9db NB |
840 | |
841 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
968ebe75 | 842 | &tf->tf_tpg_base_cit); |
1ae1602d | 843 | |
c66ac9db | 844 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
968ebe75 | 845 | &tf->tf_tpg_lun_cit); |
1ae1602d CH |
846 | configfs_add_default_group(&se_tpg->tpg_lun_group, |
847 | &se_tpg->tpg_group); | |
848 | ||
c66ac9db | 849 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
968ebe75 | 850 | &tf->tf_tpg_np_cit); |
1ae1602d CH |
851 | configfs_add_default_group(&se_tpg->tpg_np_group, |
852 | &se_tpg->tpg_group); | |
853 | ||
c66ac9db | 854 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
968ebe75 | 855 | &tf->tf_tpg_nacl_cit); |
1ae1602d CH |
856 | configfs_add_default_group(&se_tpg->tpg_acl_group, |
857 | &se_tpg->tpg_group); | |
858 | ||
c66ac9db | 859 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
968ebe75 | 860 | &tf->tf_tpg_attrib_cit); |
1ae1602d CH |
861 | configfs_add_default_group(&se_tpg->tpg_attrib_group, |
862 | &se_tpg->tpg_group); | |
863 | ||
e4b512e7 | 864 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
968ebe75 | 865 | &tf->tf_tpg_auth_cit); |
1ae1602d CH |
866 | configfs_add_default_group(&se_tpg->tpg_auth_group, |
867 | &se_tpg->tpg_group); | |
868 | ||
c66ac9db | 869 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
968ebe75 | 870 | &tf->tf_tpg_param_cit); |
1ae1602d CH |
871 | configfs_add_default_group(&se_tpg->tpg_param_group, |
872 | &se_tpg->tpg_group); | |
c66ac9db NB |
873 | |
874 | return &se_tpg->tpg_group; | |
875 | } | |
876 | ||
877 | static void target_fabric_drop_tpg( | |
878 | struct config_group *group, | |
879 | struct config_item *item) | |
880 | { | |
c66ac9db NB |
881 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
882 | struct se_portal_group, tpg_group); | |
c66ac9db | 883 | |
1ae1602d | 884 | configfs_remove_default_groups(&se_tpg->tpg_group); |
c66ac9db | 885 | config_item_put(item); |
c66ac9db NB |
886 | } |
887 | ||
1f6fe7cb NB |
888 | static void target_fabric_release_wwn(struct config_item *item) |
889 | { | |
890 | struct se_wwn *wwn = container_of(to_config_group(item), | |
891 | struct se_wwn, wwn_group); | |
892 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
893 | ||
839559e1 | 894 | configfs_remove_default_groups(&wwn->fabric_stat_group); |
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 | 947 | |
839559e1 CH |
948 | if (tf->tf_ops->add_wwn_groups) |
949 | tf->tf_ops->add_wwn_groups(wwn); | |
c66ac9db NB |
950 | return &wwn->wwn_group; |
951 | } | |
952 | ||
953 | static void target_fabric_drop_wwn( | |
954 | struct config_group *group, | |
955 | struct config_item *item) | |
956 | { | |
12d23384 NB |
957 | struct se_wwn *wwn = container_of(to_config_group(item), |
958 | struct se_wwn, wwn_group); | |
12d23384 | 959 | |
1ae1602d | 960 | configfs_remove_default_groups(&wwn->wwn_group); |
c66ac9db | 961 | config_item_put(item); |
c66ac9db NB |
962 | } |
963 | ||
964 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
965 | .make_group = target_fabric_make_wwn, | |
966 | .drop_item = target_fabric_drop_wwn, | |
967 | }; | |
c66ac9db | 968 | |
2eafd729 CH |
969 | TF_CIT_SETUP_DRV(wwn, NULL, &target_fabric_wwn_group_ops); |
970 | TF_CIT_SETUP_DRV(discovery, NULL, NULL); | |
c66ac9db NB |
971 | |
972 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
973 | { | |
974 | target_fabric_setup_discovery_cit(tf); | |
975 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 976 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
977 | target_fabric_setup_tpg_cit(tf); |
978 | target_fabric_setup_tpg_base_cit(tf); | |
979 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 980 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
981 | target_fabric_setup_tpg_lun_cit(tf); |
982 | target_fabric_setup_tpg_np_cit(tf); | |
983 | target_fabric_setup_tpg_np_base_cit(tf); | |
984 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 985 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
986 | target_fabric_setup_tpg_param_cit(tf); |
987 | target_fabric_setup_tpg_nacl_cit(tf); | |
988 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
989 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
990 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
991 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 992 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 993 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 994 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
995 | |
996 | return 0; | |
997 | } |