1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /******************************************************************************* |
3 | * Filename: target_core_fabric_configfs.c |
4 | * |
5 | * This file contains generic fabric module configfs infrastructure for |
6 | * TCM v4.x code |
7 | * |
8 | * (c) Copyright 2010-2013 Datera, Inc. |
9 | * |
10 | * Nicholas A. Bellinger <nab@linux-iscsi.org> |
11 | * |
12 | ****************************************************************************/ |
13 | |
14 | #include <linux/kstrtox.h> |
15 | #include <linux/module.h> |
16 | #include <linux/moduleparam.h> |
17 | #include <linux/utsname.h> |
18 | #include <linux/init.h> |
19 | #include <linux/fs.h> |
20 | #include <linux/namei.h> |
21 | #include <linux/slab.h> |
22 | #include <linux/types.h> |
23 | #include <linux/delay.h> |
24 | #include <linux/unistd.h> |
25 | #include <linux/string.h> |
26 | #include <linux/syscalls.h> |
27 | #include <linux/configfs.h> |
28 | |
29 | #include <target/target_core_base.h> |
30 | #include <target/target_core_backend.h> |
31 | #include <target/target_core_fabric.h> |
32 | |
33 | #include "target_core_internal.h" |
34 | #include "target_core_alua.h" |
35 | #include "target_core_pr.h" |
36 | |
37 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ |
38 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ |
39 | { \ |
40 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
41 | \ |
42 | cit->ct_item_ops = _item_ops; \ |
43 | cit->ct_group_ops = _group_ops; \ |
44 | cit->ct_attrs = _attrs; \ |
45 | cit->ct_owner = tf->tf_ops->module; \ |
46 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
47 | } |
48 | |
49 | #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ |
50 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ |
51 | { \ |
52 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
53 | struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \ |
54 | \ |
55 | cit->ct_item_ops = _item_ops; \ |
56 | cit->ct_group_ops = _group_ops; \ |
57 | cit->ct_attrs = attrs; \ |
58 | cit->ct_owner = tf->tf_ops->module; \ |
59 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
60 | } |
61 | |
62 | static struct configfs_item_operations target_fabric_port_item_ops; |
63 | |
64 | /* Start of tfc_tpg_mappedlun_cit */ |
65 | |
66 | static int target_fabric_mappedlun_link( |
67 | struct config_item *lun_acl_ci, |
68 | struct config_item *lun_ci) |
69 | { |
70 | struct se_dev_entry *deve; |
71 | struct se_lun *lun; |
72 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
73 | struct se_lun_acl, se_lun_group); |
74 | struct se_portal_group *se_tpg; |
75 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; |
76 | bool lun_access_ro; |
77 | |
78 | if (!lun_ci->ci_type || |
79 | lun_ci->ci_type->ct_item_ops != &target_fabric_port_item_ops) { |
80 | pr_err("Bad lun_ci, not a valid lun_ci pointer: %p\n" , lun_ci); |
81 | return -EFAULT; |
82 | } |
83 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); |
84 | |
85 | /* |
86 | * Ensure that the source port exists |
87 | */ |
88 | if (!lun->lun_se_dev) { |
89 | pr_err("Source se_lun->lun_se_dev does not exist\n" ); |
90 | return -EINVAL; |
91 | } |
92 | if (lun->lun_shutdown) { |
93 | pr_err("Unable to create mappedlun symlink because" |
94 | " lun->lun_shutdown=true\n" ); |
95 | return -EINVAL; |
96 | } |
97 | se_tpg = lun->lun_tpg; |
98 | |
99 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; |
100 | tpg_ci = &nacl_ci->ci_group->cg_item; |
101 | wwn_ci = &tpg_ci->ci_group->cg_item; |
102 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; |
103 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; |
104 | /* |
105 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT |
106 | */ |
107 | if (strcmp(config_item_name(item: wwn_ci), config_item_name(item: wwn_ci_s))) { |
108 | pr_err("Illegal Initiator ACL SymLink outside of %s\n" , |
109 | config_item_name(wwn_ci)); |
110 | return -EINVAL; |
111 | } |
112 | if (strcmp(config_item_name(item: tpg_ci), config_item_name(item: tpg_ci_s))) { |
113 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
114 | " TPGT: %s\n" , config_item_name(wwn_ci), |
115 | config_item_name(tpg_ci)); |
116 | return -EINVAL; |
117 | } |
118 | /* |
119 | * If this struct se_node_acl was dynamically generated with |
120 | * tpg_1/attrib/generate_node_acls=1, use the existing |
121 | * deve->lun_access_ro value, which will be true when |
122 | * tpg_1/attrib/demo_mode_write_protect=1 |
123 | */ |
124 | rcu_read_lock(); |
125 | deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); |
126 | if (deve) |
127 | lun_access_ro = deve->lun_access_ro; |
128 | else |
129 | lun_access_ro = |
130 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
131 | se_tpg)) ? true : false; |
132 | rcu_read_unlock(); |
133 | /* |
134 | * Determine the actual mapped LUN value user wants.. |
135 | * |
136 | * This value is what the SCSI Initiator actually sees the |
137 | * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. |
138 | */ |
139 | return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access_ro); |
140 | } |
141 | |
142 | static void target_fabric_mappedlun_unlink( |
143 | struct config_item *lun_acl_ci, |
144 | struct config_item *lun_ci) |
145 | { |
146 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
147 | struct se_lun_acl, se_lun_group); |
148 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
149 | struct se_lun, lun_group); |
150 | |
151 | core_dev_del_initiator_node_lun_acl(lun, lacl); |
152 | } |
153 | |
154 | static struct se_lun_acl *item_to_lun_acl(struct config_item *item) |
155 | { |
156 | return container_of(to_config_group(item), struct se_lun_acl, |
157 | se_lun_group); |
158 | } |
159 | |
160 | static ssize_t target_fabric_mappedlun_write_protect_show( |
161 | struct config_item *item, char *page) |
162 | { |
163 | struct se_lun_acl *lacl = item_to_lun_acl(item); |
164 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; |
165 | struct se_dev_entry *deve; |
166 | ssize_t len = 0; |
167 | |
168 | rcu_read_lock(); |
169 | deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); |
170 | if (deve) { |
171 | len = sprintf(buf: page, fmt: "%d\n" , deve->lun_access_ro); |
172 | } |
173 | rcu_read_unlock(); |
174 | |
175 | return len; |
176 | } |
177 | |
178 | static ssize_t target_fabric_mappedlun_write_protect_store( |
179 | struct config_item *item, const char *page, size_t count) |
180 | { |
181 | struct se_lun_acl *lacl = item_to_lun_acl(item); |
182 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; |
183 | struct se_portal_group *se_tpg = se_nacl->se_tpg; |
184 | unsigned long wp; |
185 | int ret; |
186 | |
187 | ret = kstrtoul(s: page, base: 0, res: &wp); |
188 | if (ret) |
189 | return ret; |
190 | |
191 | if ((wp != 1) && (wp != 0)) |
192 | return -EINVAL; |
193 | |
194 | /* wp=1 means lun_access_ro=true */ |
195 | core_update_device_list_access(lacl->mapped_lun, wp, lacl->se_lun_nacl); |
196 | |
197 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
198 | " Mapped LUN: %llu Write Protect bit to %s\n" , |
199 | se_tpg->se_tpg_tfo->fabric_name, |
200 | se_nacl->initiatorname, lacl->mapped_lun, (wp) ? "ON" : "OFF" ); |
201 | |
202 | return count; |
203 | |
204 | } |
205 | |
206 | CONFIGFS_ATTR(target_fabric_mappedlun_, write_protect); |
207 | |
208 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
209 | &target_fabric_mappedlun_attr_write_protect, |
210 | NULL, |
211 | }; |
212 | |
213 | static void target_fabric_mappedlun_release(struct config_item *item) |
214 | { |
215 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
216 | struct se_lun_acl, se_lun_group); |
217 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; |
218 | |
219 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); |
220 | } |
221 | |
222 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { |
223 | .release = target_fabric_mappedlun_release, |
224 | .allow_link = target_fabric_mappedlun_link, |
225 | .drop_link = target_fabric_mappedlun_unlink, |
226 | }; |
227 | |
228 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, |
229 | target_fabric_mappedlun_attrs); |
230 | |
231 | /* End of tfc_tpg_mappedlun_cit */ |
232 | |
233 | /* Start of tfc_tpg_mappedlun_port_cit */ |
234 | |
235 | static struct config_group *target_core_mappedlun_stat_mkdir( |
236 | struct config_group *group, |
237 | const char *name) |
238 | { |
239 | return ERR_PTR(error: -ENOSYS); |
240 | } |
241 | |
242 | static void target_core_mappedlun_stat_rmdir( |
243 | struct config_group *group, |
244 | struct config_item *item) |
245 | { |
246 | return; |
247 | } |
248 | |
249 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { |
250 | .make_group = target_core_mappedlun_stat_mkdir, |
251 | .drop_item = target_core_mappedlun_stat_rmdir, |
252 | }; |
253 | |
254 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, |
255 | NULL); |
256 | |
257 | /* End of tfc_tpg_mappedlun_port_cit */ |
258 | |
259 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, NULL, NULL); |
260 | TF_CIT_SETUP_DRV(tpg_nacl_auth, NULL, NULL); |
261 | TF_CIT_SETUP_DRV(tpg_nacl_param, NULL, NULL); |
262 | |
263 | /* Start of tfc_tpg_nacl_base_cit */ |
264 | |
265 | static struct config_group *target_fabric_make_mappedlun( |
266 | struct config_group *group, |
267 | const char *name) |
268 | { |
269 | struct se_node_acl *se_nacl = container_of(group, |
270 | struct se_node_acl, acl_group); |
271 | struct se_portal_group *se_tpg = se_nacl->se_tpg; |
272 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
273 | struct se_lun_acl *lacl = NULL; |
274 | char *buf; |
275 | unsigned long long mapped_lun; |
276 | int ret = 0; |
277 | |
278 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); |
279 | if (!buf) { |
280 | pr_err("Unable to allocate memory for name buf\n" ); |
281 | return ERR_PTR(error: -ENOMEM); |
282 | } |
283 | snprintf(buf, strlen(name) + 1, fmt: "%s" , name); |
284 | /* |
285 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. |
286 | */ |
287 | if (strstr(buf, "lun_" ) != buf) { |
288 | pr_err("Unable to locate \"lun_\" from buf: %s" |
289 | " name: %s\n" , buf, name); |
290 | ret = -EINVAL; |
291 | goto out; |
292 | } |
293 | /* |
294 | * Determine the Mapped LUN value. This is what the SCSI Initiator |
295 | * Port will actually see. |
296 | */ |
297 | ret = kstrtoull(s: buf + 4, base: 0, res: &mapped_lun); |
298 | if (ret) |
299 | goto out; |
300 | |
301 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
302 | mapped_lun, &ret); |
303 | if (!lacl) { |
304 | ret = -EINVAL; |
305 | goto out; |
306 | } |
307 | |
308 | config_group_init_type_name(group: &lacl->se_lun_group, name, |
309 | type: &tf->tf_tpg_mappedlun_cit); |
310 | |
311 | config_group_init_type_name(group: &lacl->ml_stat_grps.stat_group, |
312 | name: "statistics" , type: &tf->tf_tpg_mappedlun_stat_cit); |
313 | configfs_add_default_group(new_group: &lacl->ml_stat_grps.stat_group, |
314 | group: &lacl->se_lun_group); |
315 | |
316 | target_stat_setup_mappedlun_default_groups(lacl); |
317 | |
318 | kfree(objp: buf); |
319 | return &lacl->se_lun_group; |
320 | out: |
321 | kfree(objp: lacl); |
322 | kfree(objp: buf); |
323 | return ERR_PTR(error: ret); |
324 | } |
325 | |
326 | static void target_fabric_drop_mappedlun( |
327 | struct config_group *group, |
328 | struct config_item *item) |
329 | { |
330 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
331 | struct se_lun_acl, se_lun_group); |
332 | |
333 | configfs_remove_default_groups(group: &lacl->ml_stat_grps.stat_group); |
334 | configfs_remove_default_groups(group: &lacl->se_lun_group); |
335 | |
336 | config_item_put(item); |
337 | } |
338 | |
339 | static void target_fabric_nacl_base_release(struct config_item *item) |
340 | { |
341 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
342 | struct se_node_acl, acl_group); |
343 | |
344 | configfs_remove_default_groups(group: &se_nacl->acl_fabric_stat_group); |
345 | core_tpg_del_initiator_node_acl(acl: se_nacl); |
346 | } |
347 | |
348 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { |
349 | .release = target_fabric_nacl_base_release, |
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 | |
357 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
358 | &target_fabric_nacl_base_group_ops); |
359 | |
360 | /* End of tfc_tpg_nacl_base_cit */ |
361 | |
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 | |
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; |
381 | |
382 | se_nacl = core_tpg_add_initiator_node_acl(tpg: se_tpg, initiatorname: name); |
383 | if (IS_ERR(ptr: se_nacl)) |
384 | return ERR_CAST(ptr: se_nacl); |
385 | |
386 | config_group_init_type_name(group: &se_nacl->acl_group, name, |
387 | type: &tf->tf_tpg_nacl_base_cit); |
388 | |
389 | config_group_init_type_name(group: &se_nacl->acl_attrib_group, name: "attrib" , |
390 | type: &tf->tf_tpg_nacl_attrib_cit); |
391 | configfs_add_default_group(new_group: &se_nacl->acl_attrib_group, |
392 | group: &se_nacl->acl_group); |
393 | |
394 | config_group_init_type_name(group: &se_nacl->acl_auth_group, name: "auth" , |
395 | type: &tf->tf_tpg_nacl_auth_cit); |
396 | configfs_add_default_group(new_group: &se_nacl->acl_auth_group, |
397 | group: &se_nacl->acl_group); |
398 | |
399 | config_group_init_type_name(group: &se_nacl->acl_param_group, name: "param" , |
400 | type: &tf->tf_tpg_nacl_param_cit); |
401 | configfs_add_default_group(new_group: &se_nacl->acl_param_group, |
402 | group: &se_nacl->acl_group); |
403 | |
404 | config_group_init_type_name(group: &se_nacl->acl_fabric_stat_group, |
405 | name: "fabric_statistics" , type: &tf->tf_tpg_nacl_stat_cit); |
406 | configfs_add_default_group(new_group: &se_nacl->acl_fabric_stat_group, |
407 | group: &se_nacl->acl_group); |
408 | |
409 | if (tf->tf_ops->fabric_init_nodeacl) { |
410 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); |
411 | if (ret) { |
412 | configfs_remove_default_groups(group: &se_nacl->acl_fabric_stat_group); |
413 | core_tpg_del_initiator_node_acl(acl: se_nacl); |
414 | return ERR_PTR(error: ret); |
415 | } |
416 | } |
417 | |
418 | return &se_nacl->acl_group; |
419 | } |
420 | |
421 | static void target_fabric_drop_nodeacl( |
422 | struct config_group *group, |
423 | struct config_item *item) |
424 | { |
425 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
426 | struct se_node_acl, acl_group); |
427 | |
428 | configfs_remove_default_groups(group: &se_nacl->acl_group); |
429 | |
430 | /* |
431 | * struct se_node_acl free is done in target_fabric_nacl_base_release() |
432 | */ |
433 | config_item_put(item); |
434 | } |
435 | |
436 | static struct configfs_group_operations target_fabric_nacl_group_ops = { |
437 | .make_group = target_fabric_make_nodeacl, |
438 | .drop_item = target_fabric_drop_nodeacl, |
439 | }; |
440 | |
441 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); |
442 | |
443 | /* End of tfc_tpg_nacl_cit */ |
444 | |
445 | /* Start of tfc_tpg_np_base_cit */ |
446 | |
447 | static void target_fabric_np_base_release(struct config_item *item) |
448 | { |
449 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), |
450 | struct se_tpg_np, tpg_np_group); |
451 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; |
452 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
453 | |
454 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
455 | } |
456 | |
457 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
458 | .release = target_fabric_np_base_release, |
459 | }; |
460 | |
461 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
462 | |
463 | /* End of tfc_tpg_np_base_cit */ |
464 | |
465 | /* Start of tfc_tpg_np_cit */ |
466 | |
467 | static struct config_group *target_fabric_make_np( |
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_np_group); |
473 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
474 | struct se_tpg_np *se_tpg_np; |
475 | |
476 | if (!tf->tf_ops->fabric_make_np) { |
477 | pr_err("tf->tf_ops.fabric_make_np is NULL\n" ); |
478 | return ERR_PTR(error: -ENOSYS); |
479 | } |
480 | |
481 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
482 | if (!se_tpg_np || IS_ERR(ptr: se_tpg_np)) |
483 | return ERR_PTR(error: -EINVAL); |
484 | |
485 | se_tpg_np->tpg_np_parent = se_tpg; |
486 | config_group_init_type_name(group: &se_tpg_np->tpg_np_group, name, |
487 | type: &tf->tf_tpg_np_base_cit); |
488 | |
489 | return &se_tpg_np->tpg_np_group; |
490 | } |
491 | |
492 | static void target_fabric_drop_np( |
493 | struct config_group *group, |
494 | struct config_item *item) |
495 | { |
496 | /* |
497 | * struct se_tpg_np is released via target_fabric_np_base_release() |
498 | */ |
499 | config_item_put(item); |
500 | } |
501 | |
502 | static struct configfs_group_operations target_fabric_np_group_ops = { |
503 | .make_group = &target_fabric_make_np, |
504 | .drop_item = &target_fabric_drop_np, |
505 | }; |
506 | |
507 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); |
508 | |
509 | /* End of tfc_tpg_np_cit */ |
510 | |
511 | /* Start of tfc_tpg_port_cit */ |
512 | |
513 | static struct se_lun *item_to_lun(struct config_item *item) |
514 | { |
515 | return container_of(to_config_group(item), struct se_lun, |
516 | lun_group); |
517 | } |
518 | |
519 | static ssize_t target_fabric_port_alua_tg_pt_gp_show(struct config_item *item, |
520 | char *page) |
521 | { |
522 | struct se_lun *lun = item_to_lun(item); |
523 | |
524 | if (!lun->lun_se_dev) |
525 | return -ENODEV; |
526 | |
527 | return core_alua_show_tg_pt_gp_info(lun, page); |
528 | } |
529 | |
530 | static ssize_t target_fabric_port_alua_tg_pt_gp_store(struct config_item *item, |
531 | const char *page, size_t count) |
532 | { |
533 | struct se_lun *lun = item_to_lun(item); |
534 | |
535 | if (!lun->lun_se_dev) |
536 | return -ENODEV; |
537 | |
538 | return core_alua_store_tg_pt_gp_info(lun, page, count); |
539 | } |
540 | |
541 | static ssize_t target_fabric_port_alua_tg_pt_offline_show( |
542 | struct config_item *item, char *page) |
543 | { |
544 | struct se_lun *lun = item_to_lun(item); |
545 | |
546 | if (!lun->lun_se_dev) |
547 | return -ENODEV; |
548 | |
549 | return core_alua_show_offline_bit(lun, page); |
550 | } |
551 | |
552 | static ssize_t target_fabric_port_alua_tg_pt_offline_store( |
553 | struct config_item *item, const char *page, size_t count) |
554 | { |
555 | struct se_lun *lun = item_to_lun(item); |
556 | |
557 | if (!lun->lun_se_dev) |
558 | return -ENODEV; |
559 | |
560 | return core_alua_store_offline_bit(lun, page, count); |
561 | } |
562 | |
563 | static ssize_t target_fabric_port_alua_tg_pt_status_show( |
564 | struct config_item *item, char *page) |
565 | { |
566 | struct se_lun *lun = item_to_lun(item); |
567 | |
568 | if (!lun->lun_se_dev) |
569 | return -ENODEV; |
570 | |
571 | return core_alua_show_secondary_status(lun, page); |
572 | } |
573 | |
574 | static ssize_t target_fabric_port_alua_tg_pt_status_store( |
575 | struct config_item *item, const char *page, size_t count) |
576 | { |
577 | struct se_lun *lun = item_to_lun(item); |
578 | |
579 | if (!lun->lun_se_dev) |
580 | return -ENODEV; |
581 | |
582 | return core_alua_store_secondary_status(lun, page, count); |
583 | } |
584 | |
585 | static ssize_t target_fabric_port_alua_tg_pt_write_md_show( |
586 | struct config_item *item, char *page) |
587 | { |
588 | struct se_lun *lun = item_to_lun(item); |
589 | |
590 | if (!lun->lun_se_dev) |
591 | return -ENODEV; |
592 | |
593 | return core_alua_show_secondary_write_metadata(lun, page); |
594 | } |
595 | |
596 | static ssize_t target_fabric_port_alua_tg_pt_write_md_store( |
597 | struct config_item *item, const char *page, size_t count) |
598 | { |
599 | struct se_lun *lun = item_to_lun(item); |
600 | |
601 | if (!lun->lun_se_dev) |
602 | return -ENODEV; |
603 | |
604 | return core_alua_store_secondary_write_metadata(lun, page, count); |
605 | } |
606 | |
607 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_gp); |
608 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_offline); |
609 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_status); |
610 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_write_md); |
611 | |
612 | static struct configfs_attribute *target_fabric_port_attrs[] = { |
613 | &target_fabric_port_attr_alua_tg_pt_gp, |
614 | &target_fabric_port_attr_alua_tg_pt_offline, |
615 | &target_fabric_port_attr_alua_tg_pt_status, |
616 | &target_fabric_port_attr_alua_tg_pt_write_md, |
617 | NULL, |
618 | }; |
619 | |
620 | static int target_fabric_port_link( |
621 | struct config_item *lun_ci, |
622 | struct config_item *se_dev_ci) |
623 | { |
624 | struct config_item *tpg_ci; |
625 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
626 | struct se_lun, lun_group); |
627 | struct se_portal_group *se_tpg; |
628 | struct se_device *dev; |
629 | struct target_fabric_configfs *tf; |
630 | int ret; |
631 | |
632 | if (!se_dev_ci->ci_type || |
633 | se_dev_ci->ci_type->ct_item_ops != &target_core_dev_item_ops) { |
634 | pr_err("Bad se_dev_ci, not a valid se_dev_ci pointer: %p\n" , se_dev_ci); |
635 | return -EFAULT; |
636 | } |
637 | dev = container_of(to_config_group(se_dev_ci), struct se_device, dev_group); |
638 | |
639 | if (!target_dev_configured(se_dev: dev)) { |
640 | pr_err("se_device not configured yet, cannot port link\n" ); |
641 | return -ENODEV; |
642 | } |
643 | |
644 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
645 | se_tpg = container_of(to_config_group(tpg_ci), |
646 | struct se_portal_group, tpg_group); |
647 | tf = se_tpg->se_tpg_wwn->wwn_tf; |
648 | |
649 | if (lun->lun_se_dev != NULL) { |
650 | pr_err("Port Symlink already exists\n" ); |
651 | return -EEXIST; |
652 | } |
653 | |
654 | ret = core_dev_add_lun(se_tpg, dev, lun); |
655 | if (ret) { |
656 | pr_err("core_dev_add_lun() failed: %d\n" , ret); |
657 | goto out; |
658 | } |
659 | |
660 | if (tf->tf_ops->fabric_post_link) { |
661 | /* |
662 | * Call the optional fabric_post_link() to allow a |
663 | * fabric module to setup any additional state once |
664 | * core_dev_add_lun() has been called.. |
665 | */ |
666 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
667 | } |
668 | |
669 | return 0; |
670 | out: |
671 | return ret; |
672 | } |
673 | |
674 | static void target_fabric_port_unlink( |
675 | struct config_item *lun_ci, |
676 | struct config_item *se_dev_ci) |
677 | { |
678 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
679 | struct se_lun, lun_group); |
680 | struct se_portal_group *se_tpg = lun->lun_tpg; |
681 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
682 | |
683 | if (tf->tf_ops->fabric_pre_unlink) { |
684 | /* |
685 | * Call the optional fabric_pre_unlink() to allow a |
686 | * fabric module to release any additional stat before |
687 | * core_dev_del_lun() is called. |
688 | */ |
689 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
690 | } |
691 | |
692 | core_dev_del_lun(se_tpg, lun); |
693 | } |
694 | |
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 | |
703 | static struct configfs_item_operations target_fabric_port_item_ops = { |
704 | .release = target_fabric_port_release, |
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 | |
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(error: -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 | |
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; |
748 | unsigned long long unpacked_lun; |
749 | int errno; |
750 | |
751 | if (strstr(name, "lun_" ) != name) { |
752 | pr_err("Unable to locate \'_\" in" |
753 | " \"lun_$LUN_NUMBER\"\n" ); |
754 | return ERR_PTR(error: -EINVAL); |
755 | } |
756 | errno = kstrtoull(s: name + 4, base: 0, res: &unpacked_lun); |
757 | if (errno) |
758 | return ERR_PTR(error: errno); |
759 | |
760 | lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); |
761 | if (IS_ERR(ptr: lun)) |
762 | return ERR_CAST(ptr: lun); |
763 | |
764 | config_group_init_type_name(group: &lun->lun_group, name, |
765 | type: &tf->tf_tpg_port_cit); |
766 | |
767 | config_group_init_type_name(group: &lun->port_stat_grps.stat_group, |
768 | name: "statistics" , type: &tf->tf_tpg_port_stat_cit); |
769 | configfs_add_default_group(new_group: &lun->port_stat_grps.stat_group, |
770 | group: &lun->lun_group); |
771 | |
772 | target_stat_setup_port_default_groups(lun); |
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 | { |
781 | struct se_lun *lun = container_of(to_config_group(item), |
782 | struct se_lun, lun_group); |
783 | |
784 | configfs_remove_default_groups(group: &lun->port_stat_grps.stat_group); |
785 | configfs_remove_default_groups(group: &lun->lun_group); |
786 | |
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 | |
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); |
802 | |
803 | /* Start of tfc_tpg_base_cit */ |
804 | |
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 | |
812 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
813 | } |
814 | |
815 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
816 | .release = target_fabric_tpg_release, |
817 | }; |
818 | |
819 | static ssize_t target_fabric_tpg_base_enable_show(struct config_item *item, |
820 | char *page) |
821 | { |
822 | return sysfs_emit(buf: page, fmt: "%d\n" , to_tpg(item)->enabled); |
823 | } |
824 | |
825 | static ssize_t target_fabric_tpg_base_enable_store(struct config_item *item, |
826 | const char *page, |
827 | size_t count) |
828 | { |
829 | struct se_portal_group *se_tpg = to_tpg(item); |
830 | int ret; |
831 | bool op; |
832 | |
833 | ret = kstrtobool(s: page, res: &op); |
834 | if (ret) |
835 | return ret; |
836 | |
837 | if (se_tpg->enabled == op) |
838 | return count; |
839 | if (op) |
840 | ret = target_tpg_enable(se_tpg); |
841 | else |
842 | ret = target_tpg_disable(se_tpg); |
843 | if (ret) |
844 | return ret; |
845 | return count; |
846 | } |
847 | static ssize_t target_fabric_tpg_base_rtpi_show(struct config_item *item, char *page) |
848 | { |
849 | struct se_portal_group *se_tpg = to_tpg(item); |
850 | |
851 | return sysfs_emit(buf: page, fmt: "%#x\n" , se_tpg->tpg_rtpi); |
852 | } |
853 | |
854 | static ssize_t target_fabric_tpg_base_rtpi_store(struct config_item *item, |
855 | const char *page, size_t count) |
856 | { |
857 | struct se_portal_group *se_tpg = to_tpg(item); |
858 | u16 val; |
859 | int ret; |
860 | |
861 | ret = kstrtou16(s: page, base: 0, res: &val); |
862 | if (ret < 0) |
863 | return ret; |
864 | if (val == 0) |
865 | return -EINVAL; |
866 | |
867 | if (se_tpg->enabled) { |
868 | pr_info("%s_TPG[%hu] - Can not change RTPI on enabled TPG" , |
869 | se_tpg->se_tpg_tfo->fabric_name, |
870 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); |
871 | return -EINVAL; |
872 | } |
873 | |
874 | se_tpg->tpg_rtpi = val; |
875 | se_tpg->rtpi_manual = true; |
876 | |
877 | return count; |
878 | } |
879 | |
880 | CONFIGFS_ATTR(target_fabric_tpg_base_, enable); |
881 | CONFIGFS_ATTR(target_fabric_tpg_base_, rtpi); |
882 | |
883 | static int |
884 | target_fabric_setup_tpg_base_cit(struct target_fabric_configfs *tf) |
885 | { |
886 | struct config_item_type *cit = &tf->tf_tpg_base_cit; |
887 | struct configfs_attribute **attrs = NULL; |
888 | size_t nr_attrs = 0; |
889 | int i = 0; |
890 | |
891 | if (tf->tf_ops->tfc_tpg_base_attrs) |
892 | while (tf->tf_ops->tfc_tpg_base_attrs[nr_attrs] != NULL) |
893 | nr_attrs++; |
894 | |
895 | if (tf->tf_ops->fabric_enable_tpg) |
896 | nr_attrs++; |
897 | |
898 | /* + 1 for target_fabric_tpg_base_attr_rtpi */ |
899 | nr_attrs++; |
900 | |
901 | /* + 1 for final NULL in the array */ |
902 | attrs = kcalloc(n: nr_attrs + 1, size: sizeof(*attrs), GFP_KERNEL); |
903 | if (!attrs) |
904 | return -ENOMEM; |
905 | |
906 | if (tf->tf_ops->tfc_tpg_base_attrs) |
907 | for (; tf->tf_ops->tfc_tpg_base_attrs[i] != NULL; i++) |
908 | attrs[i] = tf->tf_ops->tfc_tpg_base_attrs[i]; |
909 | |
910 | if (tf->tf_ops->fabric_enable_tpg) |
911 | attrs[i++] = &target_fabric_tpg_base_attr_enable; |
912 | |
913 | attrs[i++] = &target_fabric_tpg_base_attr_rtpi; |
914 | |
915 | cit->ct_item_ops = &target_fabric_tpg_base_item_ops; |
916 | cit->ct_attrs = attrs; |
917 | cit->ct_owner = tf->tf_ops->module; |
918 | pr_debug("Setup generic tpg_base\n" ); |
919 | |
920 | return 0; |
921 | } |
922 | /* End of tfc_tpg_base_cit */ |
923 | |
924 | /* Start of tfc_tpg_cit */ |
925 | |
926 | static struct config_group *target_fabric_make_tpg( |
927 | struct config_group *group, |
928 | const char *name) |
929 | { |
930 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); |
931 | struct target_fabric_configfs *tf = wwn->wwn_tf; |
932 | struct se_portal_group *se_tpg; |
933 | |
934 | if (!tf->tf_ops->fabric_make_tpg) { |
935 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n" ); |
936 | return ERR_PTR(error: -ENOSYS); |
937 | } |
938 | |
939 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, name); |
940 | if (!se_tpg || IS_ERR(ptr: se_tpg)) |
941 | return ERR_PTR(error: -EINVAL); |
942 | |
943 | config_group_init_type_name(group: &se_tpg->tpg_group, name, |
944 | type: &tf->tf_tpg_base_cit); |
945 | |
946 | config_group_init_type_name(group: &se_tpg->tpg_lun_group, name: "lun" , |
947 | type: &tf->tf_tpg_lun_cit); |
948 | configfs_add_default_group(new_group: &se_tpg->tpg_lun_group, |
949 | group: &se_tpg->tpg_group); |
950 | |
951 | config_group_init_type_name(group: &se_tpg->tpg_np_group, name: "np" , |
952 | type: &tf->tf_tpg_np_cit); |
953 | configfs_add_default_group(new_group: &se_tpg->tpg_np_group, |
954 | group: &se_tpg->tpg_group); |
955 | |
956 | config_group_init_type_name(group: &se_tpg->tpg_acl_group, name: "acls" , |
957 | type: &tf->tf_tpg_nacl_cit); |
958 | configfs_add_default_group(new_group: &se_tpg->tpg_acl_group, |
959 | group: &se_tpg->tpg_group); |
960 | |
961 | config_group_init_type_name(group: &se_tpg->tpg_attrib_group, name: "attrib" , |
962 | type: &tf->tf_tpg_attrib_cit); |
963 | configfs_add_default_group(new_group: &se_tpg->tpg_attrib_group, |
964 | group: &se_tpg->tpg_group); |
965 | |
966 | config_group_init_type_name(group: &se_tpg->tpg_auth_group, name: "auth" , |
967 | type: &tf->tf_tpg_auth_cit); |
968 | configfs_add_default_group(new_group: &se_tpg->tpg_auth_group, |
969 | group: &se_tpg->tpg_group); |
970 | |
971 | config_group_init_type_name(group: &se_tpg->tpg_param_group, name: "param" , |
972 | type: &tf->tf_tpg_param_cit); |
973 | configfs_add_default_group(new_group: &se_tpg->tpg_param_group, |
974 | group: &se_tpg->tpg_group); |
975 | |
976 | return &se_tpg->tpg_group; |
977 | } |
978 | |
979 | static void target_fabric_drop_tpg( |
980 | struct config_group *group, |
981 | struct config_item *item) |
982 | { |
983 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
984 | struct se_portal_group, tpg_group); |
985 | |
986 | configfs_remove_default_groups(group: &se_tpg->tpg_group); |
987 | config_item_put(item); |
988 | } |
989 | |
990 | static void target_fabric_release_wwn(struct config_item *item) |
991 | { |
992 | struct se_wwn *wwn = container_of(to_config_group(item), |
993 | struct se_wwn, wwn_group); |
994 | struct target_fabric_configfs *tf = wwn->wwn_tf; |
995 | |
996 | configfs_remove_default_groups(group: &wwn->fabric_stat_group); |
997 | configfs_remove_default_groups(group: &wwn->param_group); |
998 | tf->tf_ops->fabric_drop_wwn(wwn); |
999 | } |
1000 | |
1001 | static struct configfs_item_operations target_fabric_tpg_item_ops = { |
1002 | .release = target_fabric_release_wwn, |
1003 | }; |
1004 | |
1005 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1006 | .make_group = target_fabric_make_tpg, |
1007 | .drop_item = target_fabric_drop_tpg, |
1008 | }; |
1009 | |
1010 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1011 | NULL); |
1012 | |
1013 | /* End of tfc_tpg_cit */ |
1014 | |
1015 | /* Start of tfc_wwn_fabric_stats_cit */ |
1016 | /* |
1017 | * This is used as a placeholder for struct se_wwn->fabric_stat_group |
1018 | * to allow fabrics access to ->fabric_stat_group->default_groups[] |
1019 | */ |
1020 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); |
1021 | |
1022 | /* End of tfc_wwn_fabric_stats_cit */ |
1023 | |
1024 | static ssize_t |
1025 | target_fabric_wwn_cmd_completion_affinity_show(struct config_item *item, |
1026 | char *page) |
1027 | { |
1028 | struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, |
1029 | param_group); |
1030 | return sprintf(buf: page, fmt: "%d\n" , |
1031 | wwn->cmd_compl_affinity == WORK_CPU_UNBOUND ? |
1032 | SE_COMPL_AFFINITY_CURR_CPU : wwn->cmd_compl_affinity); |
1033 | } |
1034 | |
1035 | static ssize_t |
1036 | target_fabric_wwn_cmd_completion_affinity_store(struct config_item *item, |
1037 | const char *page, size_t count) |
1038 | { |
1039 | struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, |
1040 | param_group); |
1041 | int compl_val; |
1042 | |
1043 | if (kstrtoint(s: page, base: 0, res: &compl_val)) |
1044 | return -EINVAL; |
1045 | |
1046 | switch (compl_val) { |
1047 | case SE_COMPL_AFFINITY_CPUID: |
1048 | wwn->cmd_compl_affinity = compl_val; |
1049 | break; |
1050 | case SE_COMPL_AFFINITY_CURR_CPU: |
1051 | wwn->cmd_compl_affinity = WORK_CPU_UNBOUND; |
1052 | break; |
1053 | default: |
1054 | if (compl_val < 0 || compl_val >= nr_cpu_ids || |
1055 | !cpu_online(cpu: compl_val)) { |
1056 | pr_err("Command completion value must be between %d and %d or an online CPU.\n" , |
1057 | SE_COMPL_AFFINITY_CPUID, |
1058 | SE_COMPL_AFFINITY_CURR_CPU); |
1059 | return -EINVAL; |
1060 | } |
1061 | wwn->cmd_compl_affinity = compl_val; |
1062 | } |
1063 | |
1064 | return count; |
1065 | } |
1066 | CONFIGFS_ATTR(target_fabric_wwn_, cmd_completion_affinity); |
1067 | |
1068 | static ssize_t |
1069 | target_fabric_wwn_default_submit_type_show(struct config_item *item, |
1070 | char *page) |
1071 | { |
1072 | struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, |
1073 | param_group); |
1074 | return sysfs_emit(buf: page, fmt: "%u\n" , |
1075 | wwn->wwn_tf->tf_ops->default_submit_type); |
1076 | } |
1077 | CONFIGFS_ATTR_RO(target_fabric_wwn_, default_submit_type); |
1078 | |
1079 | static ssize_t |
1080 | target_fabric_wwn_direct_submit_supported_show(struct config_item *item, |
1081 | char *page) |
1082 | { |
1083 | struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, |
1084 | param_group); |
1085 | return sysfs_emit(buf: page, fmt: "%u\n" , |
1086 | wwn->wwn_tf->tf_ops->direct_submit_supp); |
1087 | } |
1088 | CONFIGFS_ATTR_RO(target_fabric_wwn_, direct_submit_supported); |
1089 | |
1090 | static struct configfs_attribute *target_fabric_wwn_param_attrs[] = { |
1091 | &target_fabric_wwn_attr_cmd_completion_affinity, |
1092 | &target_fabric_wwn_attr_default_submit_type, |
1093 | &target_fabric_wwn_attr_direct_submit_supported, |
1094 | NULL, |
1095 | }; |
1096 | |
1097 | TF_CIT_SETUP(wwn_param, NULL, NULL, target_fabric_wwn_param_attrs); |
1098 | |
1099 | /* Start of tfc_wwn_cit */ |
1100 | |
1101 | static struct config_group *target_fabric_make_wwn( |
1102 | struct config_group *group, |
1103 | const char *name) |
1104 | { |
1105 | struct target_fabric_configfs *tf = container_of(group, |
1106 | struct target_fabric_configfs, tf_group); |
1107 | struct se_wwn *wwn; |
1108 | |
1109 | if (!tf->tf_ops->fabric_make_wwn) { |
1110 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n" ); |
1111 | return ERR_PTR(error: -ENOSYS); |
1112 | } |
1113 | |
1114 | wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); |
1115 | if (!wwn || IS_ERR(ptr: wwn)) |
1116 | return ERR_PTR(error: -EINVAL); |
1117 | |
1118 | wwn->cmd_compl_affinity = SE_COMPL_AFFINITY_CPUID; |
1119 | wwn->wwn_tf = tf; |
1120 | |
1121 | config_group_init_type_name(group: &wwn->wwn_group, name, type: &tf->tf_tpg_cit); |
1122 | |
1123 | config_group_init_type_name(group: &wwn->fabric_stat_group, name: "fabric_statistics" , |
1124 | type: &tf->tf_wwn_fabric_stats_cit); |
1125 | configfs_add_default_group(new_group: &wwn->fabric_stat_group, group: &wwn->wwn_group); |
1126 | |
1127 | config_group_init_type_name(group: &wwn->param_group, name: "param" , |
1128 | type: &tf->tf_wwn_param_cit); |
1129 | configfs_add_default_group(new_group: &wwn->param_group, group: &wwn->wwn_group); |
1130 | |
1131 | if (tf->tf_ops->add_wwn_groups) |
1132 | tf->tf_ops->add_wwn_groups(wwn); |
1133 | return &wwn->wwn_group; |
1134 | } |
1135 | |
1136 | static void target_fabric_drop_wwn( |
1137 | struct config_group *group, |
1138 | struct config_item *item) |
1139 | { |
1140 | struct se_wwn *wwn = container_of(to_config_group(item), |
1141 | struct se_wwn, wwn_group); |
1142 | |
1143 | configfs_remove_default_groups(group: &wwn->wwn_group); |
1144 | config_item_put(item); |
1145 | } |
1146 | |
1147 | static struct configfs_group_operations target_fabric_wwn_group_ops = { |
1148 | .make_group = target_fabric_make_wwn, |
1149 | .drop_item = target_fabric_drop_wwn, |
1150 | }; |
1151 | |
1152 | TF_CIT_SETUP_DRV(wwn, NULL, &target_fabric_wwn_group_ops); |
1153 | TF_CIT_SETUP_DRV(discovery, NULL, NULL); |
1154 | |
1155 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) |
1156 | { |
1157 | int ret; |
1158 | |
1159 | target_fabric_setup_discovery_cit(tf); |
1160 | target_fabric_setup_wwn_cit(tf); |
1161 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
1162 | target_fabric_setup_wwn_param_cit(tf); |
1163 | target_fabric_setup_tpg_cit(tf); |
1164 | |
1165 | ret = target_fabric_setup_tpg_base_cit(tf); |
1166 | if (ret) |
1167 | return ret; |
1168 | |
1169 | target_fabric_setup_tpg_port_cit(tf); |
1170 | target_fabric_setup_tpg_port_stat_cit(tf); |
1171 | target_fabric_setup_tpg_lun_cit(tf); |
1172 | target_fabric_setup_tpg_np_cit(tf); |
1173 | target_fabric_setup_tpg_np_base_cit(tf); |
1174 | target_fabric_setup_tpg_attrib_cit(tf); |
1175 | target_fabric_setup_tpg_auth_cit(tf); |
1176 | target_fabric_setup_tpg_param_cit(tf); |
1177 | target_fabric_setup_tpg_nacl_cit(tf); |
1178 | target_fabric_setup_tpg_nacl_base_cit(tf); |
1179 | target_fabric_setup_tpg_nacl_attrib_cit(tf); |
1180 | target_fabric_setup_tpg_nacl_auth_cit(tf); |
1181 | target_fabric_setup_tpg_nacl_param_cit(tf); |
1182 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
1183 | target_fabric_setup_tpg_mappedlun_cit(tf); |
1184 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
1185 | |
1186 | return 0; |
1187 | } |
1188 | |