[SCSI] target: add initial statistics
[linux-3.10.git] / drivers / target / target_core_fabric_configfs.c
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  *
7  * Copyright (c) 2010,2011 Rising Tide Systems
8  * Copyright (c) 2010,2011 Linux-iSCSI.org
9  *
10  * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org>
11 *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  ****************************************************************************/
22
23 #include <linux/module.h>
24 #include <linux/moduleparam.h>
25 #include <linux/version.h>
26 #include <generated/utsrelease.h>
27 #include <linux/utsname.h>
28 #include <linux/init.h>
29 #include <linux/fs.h>
30 #include <linux/namei.h>
31 #include <linux/slab.h>
32 #include <linux/types.h>
33 #include <linux/delay.h>
34 #include <linux/unistd.h>
35 #include <linux/string.h>
36 #include <linux/syscalls.h>
37 #include <linux/configfs.h>
38
39 #include <target/target_core_base.h>
40 #include <target/target_core_device.h>
41 #include <target/target_core_tpg.h>
42 #include <target/target_core_transport.h>
43 #include <target/target_core_fabric_ops.h>
44 #include <target/target_core_fabric_configfs.h>
45 #include <target/target_core_configfs.h>
46 #include <target/configfs_macros.h>
47
48 #include "target_core_alua.h"
49 #include "target_core_hba.h"
50 #include "target_core_pr.h"
51 #include "target_core_stat.h"
52
53 #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs)              \
54 static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
55 {                                                                       \
56         struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \
57         struct config_item_type *cit = &tfc->tfc_##_name##_cit;         \
58                                                                         \
59         cit->ct_item_ops = _item_ops;                                   \
60         cit->ct_group_ops = _group_ops;                                 \
61         cit->ct_attrs = _attrs;                                         \
62         cit->ct_owner = tf->tf_module;                                  \
63         printk("Setup generic %s\n", __stringify(_name));               \
64 }
65
66 /* Start of tfc_tpg_mappedlun_cit */
67
68 static int target_fabric_mappedlun_link(
69         struct config_item *lun_acl_ci,
70         struct config_item *lun_ci)
71 {
72         struct se_dev_entry *deve;
73         struct se_lun *lun = container_of(to_config_group(lun_ci),
74                         struct se_lun, lun_group);
75         struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
76                         struct se_lun_acl, se_lun_group);
77         struct se_portal_group *se_tpg;
78         struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s;
79         int ret = 0, lun_access;
80         /*
81          * Ensure that the source port exists
82          */
83         if (!(lun->lun_sep) || !(lun->lun_sep->sep_tpg)) {
84                 printk(KERN_ERR "Source se_lun->lun_sep or lun->lun_sep->sep"
85                                 "_tpg does not exist\n");
86                 return -EINVAL;
87         }
88         se_tpg = lun->lun_sep->sep_tpg;
89
90         nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
91         tpg_ci = &nacl_ci->ci_group->cg_item;
92         wwn_ci = &tpg_ci->ci_group->cg_item;
93         tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item;
94         wwn_ci_s = &tpg_ci_s->ci_group->cg_item;
95         /*
96          * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT
97          */
98         if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) {
99                 printk(KERN_ERR "Illegal Initiator ACL SymLink outside of %s\n",
100                         config_item_name(wwn_ci));
101                 return -EINVAL;
102         }
103         if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) {
104                 printk(KERN_ERR "Illegal Initiator ACL Symlink outside of %s"
105                         " TPGT: %s\n", config_item_name(wwn_ci),
106                         config_item_name(tpg_ci));
107                 return -EINVAL;
108         }
109         /*
110          * If this struct se_node_acl was dynamically generated with
111          * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags,
112          * which be will write protected (READ-ONLY) when
113          * tpg_1/attrib/demo_mode_write_protect=1
114          */
115         spin_lock_irq(&lacl->se_lun_nacl->device_list_lock);
116         deve = &lacl->se_lun_nacl->device_list[lacl->mapped_lun];
117         if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)
118                 lun_access = deve->lun_flags;
119         else
120                 lun_access =
121                         (TPG_TFO(se_tpg)->tpg_check_prod_mode_write_protect(
122                                 se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY :
123                                            TRANSPORT_LUNFLAGS_READ_WRITE;
124         spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock);
125         /*
126          * Determine the actual mapped LUN value user wants..
127          *
128          * This value is what the SCSI Initiator actually sees the
129          * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports.
130          */
131         ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl,
132                         lun->unpacked_lun, lun_access);
133
134         return (ret < 0) ? -EINVAL : 0;
135 }
136
137 static int target_fabric_mappedlun_unlink(
138         struct config_item *lun_acl_ci,
139         struct config_item *lun_ci)
140 {
141         struct se_lun *lun;
142         struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
143                         struct se_lun_acl, se_lun_group);
144         struct se_node_acl *nacl = lacl->se_lun_nacl;
145         struct se_dev_entry *deve = &nacl->device_list[lacl->mapped_lun];
146         struct se_portal_group *se_tpg;
147         /*
148          * Determine if the underlying MappedLUN has already been released..
149          */
150         if (!(deve->se_lun))
151                 return 0;
152
153         lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group);
154         se_tpg = lun->lun_sep->sep_tpg;
155
156         core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl);
157         return 0;
158 }
159
160 CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl);
161 #define TCM_MAPPEDLUN_ATTR(_name, _mode)                                \
162 static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \
163         __CONFIGFS_EATTR(_name, _mode,                                  \
164         target_fabric_mappedlun_show_##_name,                           \
165         target_fabric_mappedlun_store_##_name);
166
167 static ssize_t target_fabric_mappedlun_show_write_protect(
168         struct se_lun_acl *lacl,
169         char *page)
170 {
171         struct se_node_acl *se_nacl = lacl->se_lun_nacl;
172         struct se_dev_entry *deve;
173         ssize_t len;
174
175         spin_lock_irq(&se_nacl->device_list_lock);
176         deve = &se_nacl->device_list[lacl->mapped_lun];
177         len = sprintf(page, "%d\n",
178                         (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ?
179                         1 : 0);
180         spin_unlock_irq(&se_nacl->device_list_lock);
181
182         return len;
183 }
184
185 static ssize_t target_fabric_mappedlun_store_write_protect(
186         struct se_lun_acl *lacl,
187         const char *page,
188         size_t count)
189 {
190         struct se_node_acl *se_nacl = lacl->se_lun_nacl;
191         struct se_portal_group *se_tpg = se_nacl->se_tpg;
192         unsigned long op;
193
194         if (strict_strtoul(page, 0, &op))
195                 return -EINVAL;
196
197         if ((op != 1) && (op != 0))
198                 return -EINVAL;
199
200         core_update_device_list_access(lacl->mapped_lun, (op) ?
201                         TRANSPORT_LUNFLAGS_READ_ONLY :
202                         TRANSPORT_LUNFLAGS_READ_WRITE,
203                         lacl->se_lun_nacl);
204
205         printk(KERN_INFO "%s_ConfigFS: Changed Initiator ACL: %s"
206                 " Mapped LUN: %u Write Protect bit to %s\n",
207                 TPG_TFO(se_tpg)->get_fabric_name(),
208                 lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF");
209
210         return count;
211
212 }
213
214 TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR);
215
216 CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group);
217
218 static void target_fabric_mappedlun_release(struct config_item *item)
219 {
220         struct se_lun_acl *lacl = container_of(to_config_group(item),
221                                 struct se_lun_acl, se_lun_group);
222         struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg;
223
224         core_dev_free_initiator_node_lun_acl(se_tpg, lacl);
225 }
226
227 static struct configfs_attribute *target_fabric_mappedlun_attrs[] = {
228         &target_fabric_mappedlun_write_protect.attr,
229         NULL,
230 };
231
232 static struct configfs_item_operations target_fabric_mappedlun_item_ops = {
233         .release                = target_fabric_mappedlun_release,
234         .show_attribute         = target_fabric_mappedlun_attr_show,
235         .store_attribute        = target_fabric_mappedlun_attr_store,
236         .allow_link             = target_fabric_mappedlun_link,
237         .drop_link              = target_fabric_mappedlun_unlink,
238 };
239
240 TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL,
241                 target_fabric_mappedlun_attrs);
242
243 /* End of tfc_tpg_mappedlun_cit */
244
245 /* Start of tfc_tpg_mappedlun_port_cit */
246
247 static struct config_group *target_core_mappedlun_stat_mkdir(
248         struct config_group *group,
249         const char *name)
250 {
251         return ERR_PTR(-ENOSYS);
252 }
253
254 static void target_core_mappedlun_stat_rmdir(
255         struct config_group *group,
256         struct config_item *item)
257 {
258         return;
259 }
260
261 static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = {
262         .make_group             = target_core_mappedlun_stat_mkdir,
263         .drop_item              = target_core_mappedlun_stat_rmdir,
264 };
265
266 TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops,
267                 NULL);
268
269 /* End of tfc_tpg_mappedlun_port_cit */
270
271 /* Start of tfc_tpg_nacl_attrib_cit */
272
273 CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group);
274
275 static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = {
276         .show_attribute         = target_fabric_nacl_attrib_attr_show,
277         .store_attribute        = target_fabric_nacl_attrib_attr_store,
278 };
279
280 TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL);
281
282 /* End of tfc_tpg_nacl_attrib_cit */
283
284 /* Start of tfc_tpg_nacl_auth_cit */
285
286 CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group);
287
288 static struct configfs_item_operations target_fabric_nacl_auth_item_ops = {
289         .show_attribute         = target_fabric_nacl_auth_attr_show,
290         .store_attribute        = target_fabric_nacl_auth_attr_store,
291 };
292
293 TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL);
294
295 /* End of tfc_tpg_nacl_auth_cit */
296
297 /* Start of tfc_tpg_nacl_param_cit */
298
299 CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group);
300
301 static struct configfs_item_operations target_fabric_nacl_param_item_ops = {
302         .show_attribute         = target_fabric_nacl_param_attr_show,
303         .store_attribute        = target_fabric_nacl_param_attr_store,
304 };
305
306 TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL);
307
308 /* End of tfc_tpg_nacl_param_cit */
309
310 /* Start of tfc_tpg_nacl_base_cit */
311
312 CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group);
313
314 static struct config_group *target_fabric_make_mappedlun(
315         struct config_group *group,
316         const char *name)
317 {
318         struct se_node_acl *se_nacl = container_of(group,
319                         struct se_node_acl, acl_group);
320         struct se_portal_group *se_tpg = se_nacl->se_tpg;
321         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
322         struct se_lun_acl *lacl;
323         struct config_item *acl_ci;
324         struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
325         char *buf;
326         unsigned long mapped_lun;
327         int ret = 0;
328
329         acl_ci = &group->cg_item;
330         if (!(acl_ci)) {
331                 printk(KERN_ERR "Unable to locatel acl_ci\n");
332                 return NULL;
333         }
334
335         buf = kzalloc(strlen(name) + 1, GFP_KERNEL);
336         if (!(buf)) {
337                 printk(KERN_ERR "Unable to allocate memory for name buf\n");
338                 return ERR_PTR(-ENOMEM);
339         }
340         snprintf(buf, strlen(name) + 1, "%s", name);
341         /*
342          * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID.
343          */
344         if (strstr(buf, "lun_") != buf) {
345                 printk(KERN_ERR "Unable to locate \"lun_\" from buf: %s"
346                         " name: %s\n", buf, name);
347                 ret = -EINVAL;
348                 goto out;
349         }
350         /*
351          * Determine the Mapped LUN value.  This is what the SCSI Initiator
352          * Port will actually see.
353          */
354         if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) {
355                 ret = -EINVAL;
356                 goto out;
357         }
358
359         lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
360                         config_item_name(acl_ci), &ret);
361         if (!(lacl)) {
362                 ret = -EINVAL;
363                 goto out;
364         }
365
366         lacl_cg = &lacl->se_lun_group;
367         lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
368                                 GFP_KERNEL);
369         if (!lacl_cg->default_groups) {
370                 printk(KERN_ERR "Unable to allocate lacl_cg->default_groups\n");
371                 ret = -ENOMEM;
372                 goto out;
373         }
374
375         config_group_init_type_name(&lacl->se_lun_group, name,
376                         &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit);
377         config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
378                         "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit);
379         lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
380         lacl_cg->default_groups[1] = NULL;
381
382         ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
383         ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3,
384                                 GFP_KERNEL);
385         if (!ml_stat_grp->default_groups) {
386                 printk(KERN_ERR "Unable to allocate ml_stat_grp->default_groups\n");
387                 ret = -ENOMEM;
388                 goto out;
389         }
390         target_stat_setup_mappedlun_default_groups(lacl);
391
392         kfree(buf);
393         return &lacl->se_lun_group;
394 out:
395         if (lacl_cg)
396                 kfree(lacl_cg->default_groups);
397         kfree(buf);
398         return ERR_PTR(ret);
399 }
400
401 static void target_fabric_drop_mappedlun(
402         struct config_group *group,
403         struct config_item *item)
404 {
405         struct se_lun_acl *lacl = container_of(to_config_group(item),
406                         struct se_lun_acl, se_lun_group);
407         struct config_item *df_item;
408         struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
409         int i;
410
411         ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
412         for (i = 0; ml_stat_grp->default_groups[i]; i++) {
413                 df_item = &ml_stat_grp->default_groups[i]->cg_item;
414                 ml_stat_grp->default_groups[i] = NULL;
415                 config_item_put(df_item);
416         }
417         kfree(ml_stat_grp->default_groups);
418
419         lacl_cg = &lacl->se_lun_group;
420         for (i = 0; lacl_cg->default_groups[i]; i++) {
421                 df_item = &lacl_cg->default_groups[i]->cg_item;
422                 lacl_cg->default_groups[i] = NULL;
423                 config_item_put(df_item);
424         }
425         kfree(lacl_cg->default_groups);
426
427         config_item_put(item);
428 }
429
430 static void target_fabric_nacl_base_release(struct config_item *item)
431 {
432         struct se_node_acl *se_nacl = container_of(to_config_group(item),
433                         struct se_node_acl, acl_group);
434         struct se_portal_group *se_tpg = se_nacl->se_tpg;
435         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
436
437         tf->tf_ops.fabric_drop_nodeacl(se_nacl);
438 }
439
440 static struct configfs_item_operations target_fabric_nacl_base_item_ops = {
441         .release                = target_fabric_nacl_base_release,
442         .show_attribute         = target_fabric_nacl_base_attr_show,
443         .store_attribute        = target_fabric_nacl_base_attr_store,
444 };
445
446 static struct configfs_group_operations target_fabric_nacl_base_group_ops = {
447         .make_group             = target_fabric_make_mappedlun,
448         .drop_item              = target_fabric_drop_mappedlun,
449 };
450
451 TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops,
452                 &target_fabric_nacl_base_group_ops, NULL);
453
454 /* End of tfc_tpg_nacl_base_cit */
455
456 /* Start of tfc_node_fabric_stats_cit */
457 /*
458  * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group
459  * to allow fabrics access to ->acl_fabric_stat_group->default_groups[]
460  */
461 TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL);
462
463 /* End of tfc_wwn_fabric_stats_cit */
464
465 /* Start of tfc_tpg_nacl_cit */
466
467 static struct config_group *target_fabric_make_nodeacl(
468         struct config_group *group,
469         const char *name)
470 {
471         struct se_portal_group *se_tpg = container_of(group,
472                         struct se_portal_group, tpg_acl_group);
473         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
474         struct se_node_acl *se_nacl;
475         struct config_group *nacl_cg;
476
477         if (!(tf->tf_ops.fabric_make_nodeacl)) {
478                 printk(KERN_ERR "tf->tf_ops.fabric_make_nodeacl is NULL\n");
479                 return ERR_PTR(-ENOSYS);
480         }
481
482         se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name);
483         if (IS_ERR(se_nacl))
484                 return ERR_PTR(PTR_ERR(se_nacl));
485
486         nacl_cg = &se_nacl->acl_group;
487         nacl_cg->default_groups = se_nacl->acl_default_groups;
488         nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group;
489         nacl_cg->default_groups[1] = &se_nacl->acl_auth_group;
490         nacl_cg->default_groups[2] = &se_nacl->acl_param_group;
491         nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group;
492         nacl_cg->default_groups[4] = NULL;
493
494         config_group_init_type_name(&se_nacl->acl_group, name,
495                         &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit);
496         config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib",
497                         &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit);
498         config_group_init_type_name(&se_nacl->acl_auth_group, "auth",
499                         &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit);
500         config_group_init_type_name(&se_nacl->acl_param_group, "param",
501                         &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit);
502         config_group_init_type_name(&se_nacl->acl_fabric_stat_group,
503                         "fabric_statistics",
504                         &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit);
505
506         return &se_nacl->acl_group;
507 }
508
509 static void target_fabric_drop_nodeacl(
510         struct config_group *group,
511         struct config_item *item)
512 {
513         struct se_node_acl *se_nacl = container_of(to_config_group(item),
514                         struct se_node_acl, acl_group);
515         struct config_item *df_item;
516         struct config_group *nacl_cg;
517         int i;
518
519         nacl_cg = &se_nacl->acl_group;
520         for (i = 0; nacl_cg->default_groups[i]; i++) {
521                 df_item = &nacl_cg->default_groups[i]->cg_item;
522                 nacl_cg->default_groups[i] = NULL;
523                 config_item_put(df_item);
524         }
525         /*
526          * struct se_node_acl free is done in target_fabric_nacl_base_release()
527          */
528         config_item_put(item);
529 }
530
531 static struct configfs_group_operations target_fabric_nacl_group_ops = {
532         .make_group     = target_fabric_make_nodeacl,
533         .drop_item      = target_fabric_drop_nodeacl,
534 };
535
536 TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL);
537
538 /* End of tfc_tpg_nacl_cit */
539
540 /* Start of tfc_tpg_np_base_cit */
541
542 CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group);
543
544 static void target_fabric_np_base_release(struct config_item *item)
545 {
546         struct se_tpg_np *se_tpg_np = container_of(to_config_group(item),
547                                 struct se_tpg_np, tpg_np_group);
548         struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent;
549         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
550
551         tf->tf_ops.fabric_drop_np(se_tpg_np);
552 }
553
554 static struct configfs_item_operations target_fabric_np_base_item_ops = {
555         .release                = target_fabric_np_base_release,
556         .show_attribute         = target_fabric_np_base_attr_show,
557         .store_attribute        = target_fabric_np_base_attr_store,
558 };
559
560 TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL);
561
562 /* End of tfc_tpg_np_base_cit */
563
564 /* Start of tfc_tpg_np_cit */
565
566 static struct config_group *target_fabric_make_np(
567         struct config_group *group,
568         const char *name)
569 {
570         struct se_portal_group *se_tpg = container_of(group,
571                                 struct se_portal_group, tpg_np_group);
572         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
573         struct se_tpg_np *se_tpg_np;
574
575         if (!(tf->tf_ops.fabric_make_np)) {
576                 printk(KERN_ERR "tf->tf_ops.fabric_make_np is NULL\n");
577                 return ERR_PTR(-ENOSYS);
578         }
579
580         se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name);
581         if (!(se_tpg_np) || IS_ERR(se_tpg_np))
582                 return ERR_PTR(-EINVAL);
583
584         se_tpg_np->tpg_np_parent = se_tpg;
585         config_group_init_type_name(&se_tpg_np->tpg_np_group, name,
586                         &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit);
587
588         return &se_tpg_np->tpg_np_group;
589 }
590
591 static void target_fabric_drop_np(
592         struct config_group *group,
593         struct config_item *item)
594 {
595         /*
596          * struct se_tpg_np is released via target_fabric_np_base_release()
597          */
598         config_item_put(item);
599 }
600
601 static struct configfs_group_operations target_fabric_np_group_ops = {
602         .make_group     = &target_fabric_make_np,
603         .drop_item      = &target_fabric_drop_np,
604 };
605
606 TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL);
607
608 /* End of tfc_tpg_np_cit */
609
610 /* Start of tfc_tpg_port_cit */
611
612 CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun);
613 #define TCM_PORT_ATTR(_name, _mode)                                     \
614 static struct target_fabric_port_attribute target_fabric_port_##_name = \
615         __CONFIGFS_EATTR(_name, _mode,                                  \
616         target_fabric_port_show_attr_##_name,                           \
617         target_fabric_port_store_attr_##_name);
618
619 #define TCM_PORT_ATTOR_RO(_name)                                        \
620         __CONFIGFS_EATTR_RO(_name,                                      \
621         target_fabric_port_show_attr_##_name);
622
623 /*
624  * alua_tg_pt_gp
625  */
626 static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp(
627         struct se_lun *lun,
628         char *page)
629 {
630         if (!(lun))
631                 return -ENODEV;
632
633         if (!(lun->lun_sep))
634                 return -ENODEV;
635
636         return core_alua_show_tg_pt_gp_info(lun->lun_sep, page);
637 }
638
639 static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp(
640         struct se_lun *lun,
641         const char *page,
642         size_t count)
643 {
644         if (!(lun))
645                 return -ENODEV;
646
647         if (!(lun->lun_sep))
648                 return -ENODEV;
649
650         return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count);
651 }
652
653 TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR);
654
655 /*
656  * alua_tg_pt_offline
657  */
658 static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline(
659         struct se_lun *lun,
660         char *page)
661 {
662         if (!(lun))
663                 return -ENODEV;
664
665         if (!(lun->lun_sep))
666                 return -ENODEV;
667
668         return core_alua_show_offline_bit(lun, page);
669 }
670
671 static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline(
672         struct se_lun *lun,
673         const char *page,
674         size_t count)
675 {
676         if (!(lun))
677                 return -ENODEV;
678
679         if (!(lun->lun_sep))
680                 return -ENODEV;
681
682         return core_alua_store_offline_bit(lun, page, count);
683 }
684
685 TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR);
686
687 /*
688  * alua_tg_pt_status
689  */
690 static ssize_t target_fabric_port_show_attr_alua_tg_pt_status(
691         struct se_lun *lun,
692         char *page)
693 {
694         if (!(lun))
695                 return -ENODEV;
696
697         if (!(lun->lun_sep))
698                 return -ENODEV;
699
700         return core_alua_show_secondary_status(lun, page);
701 }
702
703 static ssize_t target_fabric_port_store_attr_alua_tg_pt_status(
704         struct se_lun *lun,
705         const char *page,
706         size_t count)
707 {
708         if (!(lun))
709                 return -ENODEV;
710
711         if (!(lun->lun_sep))
712                 return -ENODEV;
713
714         return core_alua_store_secondary_status(lun, page, count);
715 }
716
717 TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR);
718
719 /*
720  * alua_tg_pt_write_md
721  */
722 static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md(
723         struct se_lun *lun,
724         char *page)
725 {
726         if (!(lun))
727                 return -ENODEV;
728
729         if (!(lun->lun_sep))
730                 return -ENODEV;
731
732         return core_alua_show_secondary_write_metadata(lun, page);
733 }
734
735 static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md(
736         struct se_lun *lun,
737         const char *page,
738         size_t count)
739 {
740         if (!(lun))
741                 return -ENODEV;
742
743         if (!(lun->lun_sep))
744                 return -ENODEV;
745
746         return core_alua_store_secondary_write_metadata(lun, page, count);
747 }
748
749 TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR);
750
751
752 static struct configfs_attribute *target_fabric_port_attrs[] = {
753         &target_fabric_port_alua_tg_pt_gp.attr,
754         &target_fabric_port_alua_tg_pt_offline.attr,
755         &target_fabric_port_alua_tg_pt_status.attr,
756         &target_fabric_port_alua_tg_pt_write_md.attr,
757         NULL,
758 };
759
760 CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group);
761
762 static int target_fabric_port_link(
763         struct config_item *lun_ci,
764         struct config_item *se_dev_ci)
765 {
766         struct config_item *tpg_ci;
767         struct se_device *dev;
768         struct se_lun *lun = container_of(to_config_group(lun_ci),
769                                 struct se_lun, lun_group);
770         struct se_lun *lun_p;
771         struct se_portal_group *se_tpg;
772         struct se_subsystem_dev *se_dev = container_of(
773                                 to_config_group(se_dev_ci), struct se_subsystem_dev,
774                                 se_dev_group);
775         struct target_fabric_configfs *tf;
776         int ret;
777
778         tpg_ci = &lun_ci->ci_parent->ci_group->cg_item;
779         se_tpg = container_of(to_config_group(tpg_ci),
780                                 struct se_portal_group, tpg_group);
781         tf = se_tpg->se_tpg_wwn->wwn_tf;
782
783         if (lun->lun_se_dev !=  NULL) {
784                 printk(KERN_ERR "Port Symlink already exists\n");
785                 return -EEXIST;
786         }
787
788         dev = se_dev->se_dev_ptr;
789         if (!(dev)) {
790                 printk(KERN_ERR "Unable to locate struct se_device pointer from"
791                         " %s\n", config_item_name(se_dev_ci));
792                 ret = -ENODEV;
793                 goto out;
794         }
795
796         lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev,
797                                 lun->unpacked_lun);
798         if ((IS_ERR(lun_p)) || !(lun_p)) {
799                 printk(KERN_ERR "core_dev_add_lun() failed\n");
800                 ret = -EINVAL;
801                 goto out;
802         }
803
804         if (tf->tf_ops.fabric_post_link) {
805                 /*
806                  * Call the optional fabric_post_link() to allow a
807                  * fabric module to setup any additional state once
808                  * core_dev_add_lun() has been called..
809                  */
810                 tf->tf_ops.fabric_post_link(se_tpg, lun);
811         }
812
813         return 0;
814 out:
815         return ret;
816 }
817
818 static int target_fabric_port_unlink(
819         struct config_item *lun_ci,
820         struct config_item *se_dev_ci)
821 {
822         struct se_lun *lun = container_of(to_config_group(lun_ci),
823                                 struct se_lun, lun_group);
824         struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg;
825         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
826
827         if (tf->tf_ops.fabric_pre_unlink) {
828                 /*
829                  * Call the optional fabric_pre_unlink() to allow a
830                  * fabric module to release any additional stat before
831                  * core_dev_del_lun() is called.
832                 */
833                 tf->tf_ops.fabric_pre_unlink(se_tpg, lun);
834         }
835
836         core_dev_del_lun(se_tpg, lun->unpacked_lun);
837         return 0;
838 }
839
840 static struct configfs_item_operations target_fabric_port_item_ops = {
841         .show_attribute         = target_fabric_port_attr_show,
842         .store_attribute        = target_fabric_port_attr_store,
843         .allow_link             = target_fabric_port_link,
844         .drop_link              = target_fabric_port_unlink,
845 };
846
847 TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs);
848
849 /* End of tfc_tpg_port_cit */
850
851 /* Start of tfc_tpg_port_stat_cit */
852
853 static struct config_group *target_core_port_stat_mkdir(
854         struct config_group *group,
855         const char *name)
856 {
857         return ERR_PTR(-ENOSYS);
858 }
859
860 static void target_core_port_stat_rmdir(
861         struct config_group *group,
862         struct config_item *item)
863 {
864         return;
865 }
866
867 static struct configfs_group_operations target_fabric_port_stat_group_ops = {
868         .make_group             = target_core_port_stat_mkdir,
869         .drop_item              = target_core_port_stat_rmdir,
870 };
871
872 TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL);
873
874 /* End of tfc_tpg_port_stat_cit */
875
876 /* Start of tfc_tpg_lun_cit */
877
878 static struct config_group *target_fabric_make_lun(
879         struct config_group *group,
880         const char *name)
881 {
882         struct se_lun *lun;
883         struct se_portal_group *se_tpg = container_of(group,
884                         struct se_portal_group, tpg_lun_group);
885         struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
886         struct config_group *lun_cg = NULL, *port_stat_grp = NULL;
887         unsigned long unpacked_lun;
888         int errno;
889
890         if (strstr(name, "lun_") != name) {
891                 printk(KERN_ERR "Unable to locate \'_\" in"
892                                 " \"lun_$LUN_NUMBER\"\n");
893                 return ERR_PTR(-EINVAL);
894         }
895         if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX)
896                 return ERR_PTR(-EINVAL);
897
898         lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
899         if (!(lun))
900                 return ERR_PTR(-EINVAL);
901
902         lun_cg = &lun->lun_group;
903         lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
904                                 GFP_KERNEL);
905         if (!lun_cg->default_groups) {
906                 printk(KERN_ERR "Unable to allocate lun_cg->default_groups\n");
907                 return ERR_PTR(-ENOMEM);
908         }
909
910         config_group_init_type_name(&lun->lun_group, name,
911                         &TF_CIT_TMPL(tf)->tfc_tpg_port_cit);
912         config_group_init_type_name(&lun->port_stat_grps.stat_group,
913                         "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit);
914         lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
915         lun_cg->default_groups[1] = NULL;
916
917         port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
918         port_stat_grp->default_groups =  kzalloc(sizeof(struct config_group) * 3,
919                                 GFP_KERNEL);
920         if (!port_stat_grp->default_groups) {
921                 printk(KERN_ERR "Unable to allocate port_stat_grp->default_groups\n");
922                 errno = -ENOMEM;
923                 goto out;
924         }
925         target_stat_setup_port_default_groups(lun);
926
927         return &lun->lun_group;
928 out:
929         if (lun_cg)
930                 kfree(lun_cg->default_groups);
931         return ERR_PTR(errno);
932 }
933
934 static void target_fabric_drop_lun(
935         struct config_group *group,
936         struct config_item *item)
937 {
938         struct se_lun *lun = container_of(to_config_group(item),
939                                 struct se_lun, lun_group);
940         struct config_item *df_item;
941         struct config_group *lun_cg, *port_stat_grp;
942         int i;
943
944         port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
945         for (i = 0; port_stat_grp->default_groups[i]; i++) {
946                 df_item = &port_stat_grp->default_groups[i]->cg_item;
947                 port_stat_grp->default_groups[i] = NULL;
948                 config_item_put(df_item);
949         }
950         kfree(port_stat_grp->default_groups);
951
952         lun_cg = &lun->lun_group;
953         for (i = 0; lun_cg->default_groups[i]; i++) {
954                 df_item = &lun_cg->default_groups[i]->cg_item;
955                 lun_cg->default_groups[i] = NULL;
956                 config_item_put(df_item);
957         }
958         kfree(lun_cg->default_groups);
959
960         config_item_put(item);
961 }
962
963 static struct configfs_group_operations target_fabric_lun_group_ops = {
964         .make_group     = &target_fabric_make_lun,
965         .drop_item      = &target_fabric_drop_lun,
966 };
967
968 TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL);
969
970 /* End of tfc_tpg_lun_cit */
971
972 /* Start of tfc_tpg_attrib_cit */
973
974 CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group);
975
976 static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = {
977         .show_attribute         = target_fabric_tpg_attrib_attr_show,
978         .store_attribute        = target_fabric_tpg_attrib_attr_store,
979 };
980
981 TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL);
982
983 /* End of tfc_tpg_attrib_cit */
984
985 /* Start of tfc_tpg_param_cit */
986
987 CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group);
988
989 static struct configfs_item_operations target_fabric_tpg_param_item_ops = {
990         .show_attribute         = target_fabric_tpg_param_attr_show,
991         .store_attribute        = target_fabric_tpg_param_attr_store,
992 };
993
994 TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL);
995
996 /* End of tfc_tpg_param_cit */
997
998 /* Start of tfc_tpg_base_cit */
999 /*
1000  * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO()
1001  */
1002 CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group);
1003
1004 static void target_fabric_tpg_release(struct config_item *item)
1005 {
1006         struct se_portal_group *se_tpg = container_of(to_config_group(item),
1007                         struct se_portal_group, tpg_group);
1008         struct se_wwn *wwn = se_tpg->se_tpg_wwn;
1009         struct target_fabric_configfs *tf = wwn->wwn_tf;
1010
1011         tf->tf_ops.fabric_drop_tpg(se_tpg);
1012 }
1013
1014 static struct configfs_item_operations target_fabric_tpg_base_item_ops = {
1015         .release                = target_fabric_tpg_release,
1016         .show_attribute         = target_fabric_tpg_attr_show,
1017         .store_attribute        = target_fabric_tpg_attr_store,
1018 };
1019
1020 TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL);
1021
1022 /* End of tfc_tpg_base_cit */
1023
1024 /* Start of tfc_tpg_cit */
1025
1026 static struct config_group *target_fabric_make_tpg(
1027         struct config_group *group,
1028         const char *name)
1029 {
1030         struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group);
1031         struct target_fabric_configfs *tf = wwn->wwn_tf;
1032         struct se_portal_group *se_tpg;
1033
1034         if (!(tf->tf_ops.fabric_make_tpg)) {
1035                 printk(KERN_ERR "tf->tf_ops.fabric_make_tpg is NULL\n");
1036                 return ERR_PTR(-ENOSYS);
1037         }
1038
1039         se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name);
1040         if (!(se_tpg) || IS_ERR(se_tpg))
1041                 return ERR_PTR(-EINVAL);
1042         /*
1043          * Setup default groups from pre-allocated se_tpg->tpg_default_groups
1044          */
1045         se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups;
1046         se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group;
1047         se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group;
1048         se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group;
1049         se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group;
1050         se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group;
1051         se_tpg->tpg_group.default_groups[5] = NULL;
1052
1053         config_group_init_type_name(&se_tpg->tpg_group, name,
1054                         &TF_CIT_TMPL(tf)->tfc_tpg_base_cit);
1055         config_group_init_type_name(&se_tpg->tpg_lun_group, "lun",
1056                         &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit);
1057         config_group_init_type_name(&se_tpg->tpg_np_group, "np",
1058                         &TF_CIT_TMPL(tf)->tfc_tpg_np_cit);
1059         config_group_init_type_name(&se_tpg->tpg_acl_group, "acls",
1060                         &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit);
1061         config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib",
1062                         &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit);
1063         config_group_init_type_name(&se_tpg->tpg_param_group, "param",
1064                         &TF_CIT_TMPL(tf)->tfc_tpg_param_cit);
1065
1066         return &se_tpg->tpg_group;
1067 }
1068
1069 static void target_fabric_drop_tpg(
1070         struct config_group *group,
1071         struct config_item *item)
1072 {
1073         struct se_portal_group *se_tpg = container_of(to_config_group(item),
1074                                 struct se_portal_group, tpg_group);
1075         struct config_group *tpg_cg = &se_tpg->tpg_group;
1076         struct config_item *df_item;
1077         int i;
1078         /*
1079          * Release default groups, but do not release tpg_cg->default_groups
1080          * memory as it is statically allocated at se_tpg->tpg_default_groups.
1081          */
1082         for (i = 0; tpg_cg->default_groups[i]; i++) {
1083                 df_item = &tpg_cg->default_groups[i]->cg_item;
1084                 tpg_cg->default_groups[i] = NULL;
1085                 config_item_put(df_item);
1086         }
1087
1088         config_item_put(item);
1089 }
1090
1091 static void target_fabric_release_wwn(struct config_item *item)
1092 {
1093         struct se_wwn *wwn = container_of(to_config_group(item),
1094                                 struct se_wwn, wwn_group);
1095         struct target_fabric_configfs *tf = wwn->wwn_tf;
1096
1097         tf->tf_ops.fabric_drop_wwn(wwn);
1098 }
1099
1100 static struct configfs_item_operations target_fabric_tpg_item_ops = {
1101         .release        = target_fabric_release_wwn,
1102 };
1103
1104 static struct configfs_group_operations target_fabric_tpg_group_ops = {
1105         .make_group     = target_fabric_make_tpg,
1106         .drop_item      = target_fabric_drop_tpg,
1107 };
1108
1109 TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops,
1110                 NULL);
1111
1112 /* End of tfc_tpg_cit */
1113
1114 /* Start of tfc_wwn_fabric_stats_cit */
1115 /*
1116  * This is used as a placeholder for struct se_wwn->fabric_stat_group
1117  * to allow fabrics access to ->fabric_stat_group->default_groups[]
1118  */
1119 TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL);
1120
1121 /* End of tfc_wwn_fabric_stats_cit */
1122
1123 /* Start of tfc_wwn_cit */
1124
1125 static struct config_group *target_fabric_make_wwn(
1126         struct config_group *group,
1127         const char *name)
1128 {
1129         struct target_fabric_configfs *tf = container_of(group,
1130                                 struct target_fabric_configfs, tf_group);
1131         struct se_wwn *wwn;
1132
1133         if (!(tf->tf_ops.fabric_make_wwn)) {
1134                 printk(KERN_ERR "tf->tf_ops.fabric_make_wwn is NULL\n");
1135                 return ERR_PTR(-ENOSYS);
1136         }
1137
1138         wwn = tf->tf_ops.fabric_make_wwn(tf, group, name);
1139         if (!(wwn) || IS_ERR(wwn))
1140                 return ERR_PTR(-EINVAL);
1141
1142         wwn->wwn_tf = tf;
1143         /*
1144          * Setup default groups from pre-allocated wwn->wwn_default_groups
1145          */
1146         wwn->wwn_group.default_groups = wwn->wwn_default_groups;
1147         wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group;
1148         wwn->wwn_group.default_groups[1] = NULL;
1149
1150         config_group_init_type_name(&wwn->wwn_group, name,
1151                         &TF_CIT_TMPL(tf)->tfc_tpg_cit);
1152         config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics",
1153                         &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit);
1154
1155         return &wwn->wwn_group;
1156 }
1157
1158 static void target_fabric_drop_wwn(
1159         struct config_group *group,
1160         struct config_item *item)
1161 {
1162         struct se_wwn *wwn = container_of(to_config_group(item),
1163                                 struct se_wwn, wwn_group);
1164         struct config_item *df_item;
1165         struct config_group *cg = &wwn->wwn_group;
1166         int i;
1167
1168         for (i = 0; cg->default_groups[i]; i++) {
1169                 df_item = &cg->default_groups[i]->cg_item;
1170                 cg->default_groups[i] = NULL;
1171                 config_item_put(df_item);
1172         }
1173
1174         config_item_put(item);
1175 }
1176
1177 static struct configfs_group_operations target_fabric_wwn_group_ops = {
1178         .make_group     = target_fabric_make_wwn,
1179         .drop_item      = target_fabric_drop_wwn,
1180 };
1181 /*
1182  * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO()
1183  */
1184 CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group);
1185
1186 static struct configfs_item_operations target_fabric_wwn_item_ops = {
1187         .show_attribute         = target_fabric_wwn_attr_show,
1188         .store_attribute        = target_fabric_wwn_attr_store,
1189 };
1190
1191 TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL);
1192
1193 /* End of tfc_wwn_cit */
1194
1195 /* Start of tfc_discovery_cit */
1196
1197 CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs,
1198                 tf_disc_group);
1199
1200 static struct configfs_item_operations target_fabric_discovery_item_ops = {
1201         .show_attribute         = target_fabric_discovery_attr_show,
1202         .store_attribute        = target_fabric_discovery_attr_store,
1203 };
1204
1205 TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL);
1206
1207 /* End of tfc_discovery_cit */
1208
1209 int target_fabric_setup_cits(struct target_fabric_configfs *tf)
1210 {
1211         target_fabric_setup_discovery_cit(tf);
1212         target_fabric_setup_wwn_cit(tf);
1213         target_fabric_setup_wwn_fabric_stats_cit(tf);
1214         target_fabric_setup_tpg_cit(tf);
1215         target_fabric_setup_tpg_base_cit(tf);
1216         target_fabric_setup_tpg_port_cit(tf);
1217         target_fabric_setup_tpg_port_stat_cit(tf);
1218         target_fabric_setup_tpg_lun_cit(tf);
1219         target_fabric_setup_tpg_np_cit(tf);
1220         target_fabric_setup_tpg_np_base_cit(tf);
1221         target_fabric_setup_tpg_attrib_cit(tf);
1222         target_fabric_setup_tpg_param_cit(tf);
1223         target_fabric_setup_tpg_nacl_cit(tf);
1224         target_fabric_setup_tpg_nacl_base_cit(tf);
1225         target_fabric_setup_tpg_nacl_attrib_cit(tf);
1226         target_fabric_setup_tpg_nacl_auth_cit(tf);
1227         target_fabric_setup_tpg_nacl_param_cit(tf);
1228         target_fabric_setup_tpg_nacl_stat_cit(tf);
1229         target_fabric_setup_tpg_mappedlun_cit(tf);
1230         target_fabric_setup_tpg_mappedlun_stat_cit(tf);
1231
1232         return 0;
1233 }