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Commit | Line | Data |
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c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_device.c (based on iscsi_target_device.c) | |
3 | * | |
e3d6f909 | 4 | * This file contains the TCM Virtual Device and Disk Transport |
c66ac9db NB |
5 | * agnostic related functions. |
6 | * | |
fd9a11d7 | 7 | * (c) Copyright 2003-2012 RisingTide Systems LLC. |
c66ac9db NB |
8 | * |
9 | * Nicholas A. Bellinger <nab@kernel.org> | |
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 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
24 | * | |
25 | ******************************************************************************/ | |
26 | ||
27 | #include <linux/net.h> | |
28 | #include <linux/string.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/timer.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/spinlock.h> | |
c66ac9db NB |
33 | #include <linux/kthread.h> |
34 | #include <linux/in.h> | |
c53181af | 35 | #include <linux/export.h> |
c66ac9db NB |
36 | #include <net/sock.h> |
37 | #include <net/tcp.h> | |
38 | #include <scsi/scsi.h> | |
1078da16 | 39 | #include <scsi/scsi_device.h> |
c66ac9db NB |
40 | |
41 | #include <target/target_core_base.h> | |
c4795fb2 CH |
42 | #include <target/target_core_backend.h> |
43 | #include <target/target_core_fabric.h> | |
c66ac9db | 44 | |
e26d99ae | 45 | #include "target_core_internal.h" |
c66ac9db | 46 | #include "target_core_alua.h" |
c66ac9db NB |
47 | #include "target_core_pr.h" |
48 | #include "target_core_ua.h" | |
49 | ||
e3d6f909 | 50 | static struct se_hba *lun0_hba; |
e3d6f909 AG |
51 | /* not static, needed by tpg.c */ |
52 | struct se_device *g_lun0_dev; | |
53 | ||
de103c93 CH |
54 | sense_reason_t |
55 | transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) | |
c66ac9db | 56 | { |
c66ac9db | 57 | struct se_lun *se_lun = NULL; |
e3d6f909 | 58 | struct se_session *se_sess = se_cmd->se_sess; |
5951146d | 59 | struct se_device *dev; |
c66ac9db | 60 | unsigned long flags; |
c66ac9db | 61 | |
de103c93 CH |
62 | if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) |
63 | return TCM_NON_EXISTENT_LUN; | |
d8144955 | 64 | |
78faae37 | 65 | spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
f2083241 | 66 | se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun]; |
5951146d AG |
67 | if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
68 | struct se_dev_entry *deve = se_cmd->se_deve; | |
69 | ||
70 | deve->total_cmds++; | |
71 | deve->total_bytes += se_cmd->data_length; | |
72 | ||
73 | if ((se_cmd->data_direction == DMA_TO_DEVICE) && | |
74 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { | |
6708bb27 | 75 | pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" |
5951146d AG |
76 | " Access for 0x%08x\n", |
77 | se_cmd->se_tfo->get_fabric_name(), | |
78 | unpacked_lun); | |
78faae37 | 79 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
de103c93 | 80 | return TCM_WRITE_PROTECTED; |
c66ac9db | 81 | } |
5951146d AG |
82 | |
83 | if (se_cmd->data_direction == DMA_TO_DEVICE) | |
84 | deve->write_bytes += se_cmd->data_length; | |
85 | else if (se_cmd->data_direction == DMA_FROM_DEVICE) | |
86 | deve->read_bytes += se_cmd->data_length; | |
87 | ||
c66ac9db NB |
88 | deve->deve_cmds++; |
89 | ||
5951146d AG |
90 | se_lun = deve->se_lun; |
91 | se_cmd->se_lun = deve->se_lun; | |
c66ac9db NB |
92 | se_cmd->pr_res_key = deve->pr_res_key; |
93 | se_cmd->orig_fe_lun = unpacked_lun; | |
c66ac9db NB |
94 | se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
95 | } | |
78faae37 | 96 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
c66ac9db NB |
97 | |
98 | if (!se_lun) { | |
5951146d AG |
99 | /* |
100 | * Use the se_portal_group->tpg_virt_lun0 to allow for | |
101 | * REPORT_LUNS, et al to be returned when no active | |
102 | * MappedLUN=0 exists for this Initiator Port. | |
103 | */ | |
104 | if (unpacked_lun != 0) { | |
6708bb27 | 105 | pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
c66ac9db | 106 | " Access for 0x%08x\n", |
e3d6f909 | 107 | se_cmd->se_tfo->get_fabric_name(), |
c66ac9db | 108 | unpacked_lun); |
de103c93 | 109 | return TCM_NON_EXISTENT_LUN; |
5951146d AG |
110 | } |
111 | /* | |
112 | * Force WRITE PROTECT for virtual LUN 0 | |
113 | */ | |
114 | if ((se_cmd->data_direction != DMA_FROM_DEVICE) && | |
de103c93 CH |
115 | (se_cmd->data_direction != DMA_NONE)) |
116 | return TCM_WRITE_PROTECTED; | |
5951146d AG |
117 | |
118 | se_lun = &se_sess->se_tpg->tpg_virt_lun0; | |
119 | se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0; | |
120 | se_cmd->orig_fe_lun = 0; | |
5951146d | 121 | se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; |
c66ac9db | 122 | } |
c66ac9db | 123 | |
5951146d AG |
124 | /* Directly associate cmd with se_dev */ |
125 | se_cmd->se_dev = se_lun->lun_se_dev; | |
126 | ||
127 | /* TODO: get rid of this and use atomics for stats */ | |
128 | dev = se_lun->lun_se_dev; | |
78faae37 | 129 | spin_lock_irqsave(&dev->stats_lock, flags); |
c66ac9db NB |
130 | dev->num_cmds++; |
131 | if (se_cmd->data_direction == DMA_TO_DEVICE) | |
132 | dev->write_bytes += se_cmd->data_length; | |
133 | else if (se_cmd->data_direction == DMA_FROM_DEVICE) | |
134 | dev->read_bytes += se_cmd->data_length; | |
78faae37 | 135 | spin_unlock_irqrestore(&dev->stats_lock, flags); |
c66ac9db | 136 | |
c66ac9db | 137 | spin_lock_irqsave(&se_lun->lun_cmd_lock, flags); |
5951146d | 138 | list_add_tail(&se_cmd->se_lun_node, &se_lun->lun_cmd_list); |
c66ac9db NB |
139 | spin_unlock_irqrestore(&se_lun->lun_cmd_lock, flags); |
140 | ||
141 | return 0; | |
142 | } | |
5951146d | 143 | EXPORT_SYMBOL(transport_lookup_cmd_lun); |
c66ac9db | 144 | |
5951146d | 145 | int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun) |
c66ac9db | 146 | { |
c66ac9db NB |
147 | struct se_dev_entry *deve; |
148 | struct se_lun *se_lun = NULL; | |
e3d6f909 | 149 | struct se_session *se_sess = se_cmd->se_sess; |
c66ac9db | 150 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; |
5e1be919 | 151 | unsigned long flags; |
c66ac9db | 152 | |
de103c93 | 153 | if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) |
e3d6f909 | 154 | return -ENODEV; |
d8144955 | 155 | |
5e1be919 | 156 | spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); |
f2083241 | 157 | se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun]; |
5951146d AG |
158 | deve = se_cmd->se_deve; |
159 | ||
c66ac9db | 160 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { |
5951146d AG |
161 | se_tmr->tmr_lun = deve->se_lun; |
162 | se_cmd->se_lun = deve->se_lun; | |
163 | se_lun = deve->se_lun; | |
c66ac9db NB |
164 | se_cmd->pr_res_key = deve->pr_res_key; |
165 | se_cmd->orig_fe_lun = unpacked_lun; | |
c66ac9db | 166 | } |
5e1be919 | 167 | spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); |
c66ac9db NB |
168 | |
169 | if (!se_lun) { | |
6708bb27 | 170 | pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" |
c66ac9db | 171 | " Access for 0x%08x\n", |
e3d6f909 | 172 | se_cmd->se_tfo->get_fabric_name(), |
c66ac9db | 173 | unpacked_lun); |
e3d6f909 | 174 | return -ENODEV; |
c66ac9db | 175 | } |
c66ac9db | 176 | |
5951146d AG |
177 | /* Directly associate cmd with se_dev */ |
178 | se_cmd->se_dev = se_lun->lun_se_dev; | |
179 | se_tmr->tmr_dev = se_lun->lun_se_dev; | |
180 | ||
5e1be919 | 181 | spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags); |
5951146d | 182 | list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list); |
5e1be919 | 183 | spin_unlock_irqrestore(&se_tmr->tmr_dev->se_tmr_lock, flags); |
c66ac9db NB |
184 | |
185 | return 0; | |
186 | } | |
5951146d | 187 | EXPORT_SYMBOL(transport_lookup_tmr_lun); |
c66ac9db NB |
188 | |
189 | /* | |
190 | * This function is called from core_scsi3_emulate_pro_register_and_move() | |
191 | * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count | |
192 | * when a matching rtpi is found. | |
193 | */ | |
194 | struct se_dev_entry *core_get_se_deve_from_rtpi( | |
195 | struct se_node_acl *nacl, | |
196 | u16 rtpi) | |
197 | { | |
198 | struct se_dev_entry *deve; | |
199 | struct se_lun *lun; | |
200 | struct se_port *port; | |
201 | struct se_portal_group *tpg = nacl->se_tpg; | |
202 | u32 i; | |
203 | ||
204 | spin_lock_irq(&nacl->device_list_lock); | |
205 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { | |
f2083241 | 206 | deve = nacl->device_list[i]; |
c66ac9db NB |
207 | |
208 | if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) | |
209 | continue; | |
210 | ||
211 | lun = deve->se_lun; | |
6708bb27 AG |
212 | if (!lun) { |
213 | pr_err("%s device entries device pointer is" | |
c66ac9db | 214 | " NULL, but Initiator has access.\n", |
e3d6f909 | 215 | tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db NB |
216 | continue; |
217 | } | |
218 | port = lun->lun_sep; | |
6708bb27 AG |
219 | if (!port) { |
220 | pr_err("%s device entries device pointer is" | |
c66ac9db | 221 | " NULL, but Initiator has access.\n", |
e3d6f909 | 222 | tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db NB |
223 | continue; |
224 | } | |
225 | if (port->sep_rtpi != rtpi) | |
226 | continue; | |
227 | ||
228 | atomic_inc(&deve->pr_ref_count); | |
229 | smp_mb__after_atomic_inc(); | |
230 | spin_unlock_irq(&nacl->device_list_lock); | |
231 | ||
232 | return deve; | |
233 | } | |
234 | spin_unlock_irq(&nacl->device_list_lock); | |
235 | ||
236 | return NULL; | |
237 | } | |
238 | ||
239 | int core_free_device_list_for_node( | |
240 | struct se_node_acl *nacl, | |
241 | struct se_portal_group *tpg) | |
242 | { | |
243 | struct se_dev_entry *deve; | |
244 | struct se_lun *lun; | |
245 | u32 i; | |
246 | ||
247 | if (!nacl->device_list) | |
248 | return 0; | |
249 | ||
250 | spin_lock_irq(&nacl->device_list_lock); | |
251 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { | |
f2083241 | 252 | deve = nacl->device_list[i]; |
c66ac9db NB |
253 | |
254 | if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) | |
255 | continue; | |
256 | ||
257 | if (!deve->se_lun) { | |
6708bb27 | 258 | pr_err("%s device entries device pointer is" |
c66ac9db | 259 | " NULL, but Initiator has access.\n", |
e3d6f909 | 260 | tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db NB |
261 | continue; |
262 | } | |
263 | lun = deve->se_lun; | |
264 | ||
265 | spin_unlock_irq(&nacl->device_list_lock); | |
e80ac6c4 AG |
266 | core_disable_device_list_for_node(lun, NULL, deve->mapped_lun, |
267 | TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); | |
c66ac9db NB |
268 | spin_lock_irq(&nacl->device_list_lock); |
269 | } | |
270 | spin_unlock_irq(&nacl->device_list_lock); | |
271 | ||
f2083241 | 272 | array_free(nacl->device_list, TRANSPORT_MAX_LUNS_PER_TPG); |
c66ac9db NB |
273 | nacl->device_list = NULL; |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
278 | void core_dec_lacl_count(struct se_node_acl *se_nacl, struct se_cmd *se_cmd) | |
279 | { | |
280 | struct se_dev_entry *deve; | |
1dd0a067 | 281 | unsigned long flags; |
c66ac9db | 282 | |
1dd0a067 | 283 | spin_lock_irqsave(&se_nacl->device_list_lock, flags); |
f2083241 | 284 | deve = se_nacl->device_list[se_cmd->orig_fe_lun]; |
c66ac9db | 285 | deve->deve_cmds--; |
1dd0a067 | 286 | spin_unlock_irqrestore(&se_nacl->device_list_lock, flags); |
c66ac9db NB |
287 | } |
288 | ||
289 | void core_update_device_list_access( | |
290 | u32 mapped_lun, | |
291 | u32 lun_access, | |
292 | struct se_node_acl *nacl) | |
293 | { | |
294 | struct se_dev_entry *deve; | |
295 | ||
296 | spin_lock_irq(&nacl->device_list_lock); | |
f2083241 | 297 | deve = nacl->device_list[mapped_lun]; |
c66ac9db NB |
298 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
299 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; | |
300 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; | |
301 | } else { | |
302 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; | |
303 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; | |
304 | } | |
305 | spin_unlock_irq(&nacl->device_list_lock); | |
c66ac9db NB |
306 | } |
307 | ||
e80ac6c4 | 308 | /* core_enable_device_list_for_node(): |
c66ac9db NB |
309 | * |
310 | * | |
311 | */ | |
e80ac6c4 | 312 | int core_enable_device_list_for_node( |
c66ac9db NB |
313 | struct se_lun *lun, |
314 | struct se_lun_acl *lun_acl, | |
315 | u32 mapped_lun, | |
316 | u32 lun_access, | |
317 | struct se_node_acl *nacl, | |
e80ac6c4 | 318 | struct se_portal_group *tpg) |
c66ac9db NB |
319 | { |
320 | struct se_port *port = lun->lun_sep; | |
e80ac6c4 | 321 | struct se_dev_entry *deve; |
c66ac9db NB |
322 | |
323 | spin_lock_irq(&nacl->device_list_lock); | |
e80ac6c4 AG |
324 | |
325 | deve = nacl->device_list[mapped_lun]; | |
326 | ||
327 | /* | |
328 | * Check if the call is handling demo mode -> explict LUN ACL | |
329 | * transition. This transition must be for the same struct se_lun | |
330 | * + mapped_lun that was setup in demo mode.. | |
331 | */ | |
332 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { | |
333 | if (deve->se_lun_acl != NULL) { | |
334 | pr_err("struct se_dev_entry->se_lun_acl" | |
335 | " already set for demo mode -> explict" | |
336 | " LUN ACL transition\n"); | |
337 | spin_unlock_irq(&nacl->device_list_lock); | |
338 | return -EINVAL; | |
339 | } | |
340 | if (deve->se_lun != lun) { | |
341 | pr_err("struct se_dev_entry->se_lun does" | |
342 | " match passed struct se_lun for demo mode" | |
343 | " -> explict LUN ACL transition\n"); | |
344 | spin_unlock_irq(&nacl->device_list_lock); | |
345 | return -EINVAL; | |
c66ac9db | 346 | } |
e80ac6c4 | 347 | deve->se_lun_acl = lun_acl; |
c66ac9db NB |
348 | |
349 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { | |
350 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; | |
351 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; | |
352 | } else { | |
353 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; | |
354 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; | |
355 | } | |
356 | ||
c66ac9db | 357 | spin_unlock_irq(&nacl->device_list_lock); |
e80ac6c4 AG |
358 | return 0; |
359 | } | |
c66ac9db | 360 | |
e80ac6c4 AG |
361 | deve->se_lun = lun; |
362 | deve->se_lun_acl = lun_acl; | |
363 | deve->mapped_lun = mapped_lun; | |
364 | deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS; | |
c66ac9db | 365 | |
e80ac6c4 AG |
366 | if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { |
367 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; | |
368 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; | |
369 | } else { | |
370 | deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; | |
371 | deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; | |
c66ac9db | 372 | } |
e80ac6c4 AG |
373 | |
374 | deve->creation_time = get_jiffies_64(); | |
375 | deve->attach_count++; | |
376 | spin_unlock_irq(&nacl->device_list_lock); | |
377 | ||
378 | spin_lock_bh(&port->sep_alua_lock); | |
379 | list_add_tail(&deve->alua_port_list, &port->sep_alua_list); | |
380 | spin_unlock_bh(&port->sep_alua_lock); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | /* core_disable_device_list_for_node(): | |
386 | * | |
387 | * | |
388 | */ | |
389 | int core_disable_device_list_for_node( | |
390 | struct se_lun *lun, | |
391 | struct se_lun_acl *lun_acl, | |
392 | u32 mapped_lun, | |
393 | u32 lun_access, | |
394 | struct se_node_acl *nacl, | |
395 | struct se_portal_group *tpg) | |
396 | { | |
397 | struct se_port *port = lun->lun_sep; | |
77d4c745 | 398 | struct se_dev_entry *deve = nacl->device_list[mapped_lun]; |
e80ac6c4 AG |
399 | |
400 | /* | |
401 | * If the MappedLUN entry is being disabled, the entry in | |
402 | * port->sep_alua_list must be removed now before clearing the | |
403 | * struct se_dev_entry pointers below as logic in | |
404 | * core_alua_do_transition_tg_pt() depends on these being present. | |
405 | * | |
406 | * deve->se_lun_acl will be NULL for demo-mode created LUNs | |
407 | * that have not been explicitly converted to MappedLUNs -> | |
408 | * struct se_lun_acl, but we remove deve->alua_port_list from | |
409 | * port->sep_alua_list. This also means that active UAs and | |
410 | * NodeACL context specific PR metadata for demo-mode | |
411 | * MappedLUN *deve will be released below.. | |
412 | */ | |
413 | spin_lock_bh(&port->sep_alua_lock); | |
414 | list_del(&deve->alua_port_list); | |
415 | spin_unlock_bh(&port->sep_alua_lock); | |
c66ac9db NB |
416 | /* |
417 | * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE | |
418 | * PR operation to complete. | |
419 | */ | |
c66ac9db NB |
420 | while (atomic_read(&deve->pr_ref_count) != 0) |
421 | cpu_relax(); | |
77d4c745 | 422 | |
c66ac9db NB |
423 | spin_lock_irq(&nacl->device_list_lock); |
424 | /* | |
425 | * Disable struct se_dev_entry LUN ACL mapping | |
426 | */ | |
427 | core_scsi3_ua_release_all(deve); | |
428 | deve->se_lun = NULL; | |
429 | deve->se_lun_acl = NULL; | |
430 | deve->lun_flags = 0; | |
431 | deve->creation_time = 0; | |
432 | deve->attach_count--; | |
433 | spin_unlock_irq(&nacl->device_list_lock); | |
434 | ||
435 | core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl); | |
436 | return 0; | |
437 | } | |
438 | ||
439 | /* core_clear_lun_from_tpg(): | |
440 | * | |
441 | * | |
442 | */ | |
443 | void core_clear_lun_from_tpg(struct se_lun *lun, struct se_portal_group *tpg) | |
444 | { | |
445 | struct se_node_acl *nacl; | |
446 | struct se_dev_entry *deve; | |
447 | u32 i; | |
448 | ||
28638887 | 449 | spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db | 450 | list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) { |
28638887 | 451 | spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db NB |
452 | |
453 | spin_lock_irq(&nacl->device_list_lock); | |
454 | for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { | |
f2083241 | 455 | deve = nacl->device_list[i]; |
c66ac9db NB |
456 | if (lun != deve->se_lun) |
457 | continue; | |
458 | spin_unlock_irq(&nacl->device_list_lock); | |
459 | ||
e80ac6c4 | 460 | core_disable_device_list_for_node(lun, NULL, |
c66ac9db | 461 | deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, |
e80ac6c4 | 462 | nacl, tpg); |
c66ac9db NB |
463 | |
464 | spin_lock_irq(&nacl->device_list_lock); | |
465 | } | |
466 | spin_unlock_irq(&nacl->device_list_lock); | |
467 | ||
28638887 | 468 | spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db | 469 | } |
28638887 | 470 | spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db NB |
471 | } |
472 | ||
473 | static struct se_port *core_alloc_port(struct se_device *dev) | |
474 | { | |
475 | struct se_port *port, *port_tmp; | |
476 | ||
477 | port = kzalloc(sizeof(struct se_port), GFP_KERNEL); | |
6708bb27 AG |
478 | if (!port) { |
479 | pr_err("Unable to allocate struct se_port\n"); | |
e3d6f909 | 480 | return ERR_PTR(-ENOMEM); |
c66ac9db NB |
481 | } |
482 | INIT_LIST_HEAD(&port->sep_alua_list); | |
483 | INIT_LIST_HEAD(&port->sep_list); | |
484 | atomic_set(&port->sep_tg_pt_secondary_offline, 0); | |
485 | spin_lock_init(&port->sep_alua_lock); | |
486 | mutex_init(&port->sep_tg_pt_md_mutex); | |
487 | ||
488 | spin_lock(&dev->se_port_lock); | |
489 | if (dev->dev_port_count == 0x0000ffff) { | |
6708bb27 | 490 | pr_warn("Reached dev->dev_port_count ==" |
c66ac9db NB |
491 | " 0x0000ffff\n"); |
492 | spin_unlock(&dev->se_port_lock); | |
e3d6f909 | 493 | return ERR_PTR(-ENOSPC); |
c66ac9db NB |
494 | } |
495 | again: | |
496 | /* | |
35d1efe8 | 497 | * Allocate the next RELATIVE TARGET PORT IDENTIFIER for this struct se_device |
c66ac9db NB |
498 | * Here is the table from spc4r17 section 7.7.3.8. |
499 | * | |
500 | * Table 473 -- RELATIVE TARGET PORT IDENTIFIER field | |
501 | * | |
502 | * Code Description | |
503 | * 0h Reserved | |
504 | * 1h Relative port 1, historically known as port A | |
505 | * 2h Relative port 2, historically known as port B | |
506 | * 3h to FFFFh Relative port 3 through 65 535 | |
507 | */ | |
508 | port->sep_rtpi = dev->dev_rpti_counter++; | |
6708bb27 | 509 | if (!port->sep_rtpi) |
c66ac9db NB |
510 | goto again; |
511 | ||
512 | list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) { | |
513 | /* | |
35d1efe8 | 514 | * Make sure RELATIVE TARGET PORT IDENTIFIER is unique |
c66ac9db NB |
515 | * for 16-bit wrap.. |
516 | */ | |
517 | if (port->sep_rtpi == port_tmp->sep_rtpi) | |
518 | goto again; | |
519 | } | |
520 | spin_unlock(&dev->se_port_lock); | |
521 | ||
522 | return port; | |
523 | } | |
524 | ||
525 | static void core_export_port( | |
526 | struct se_device *dev, | |
527 | struct se_portal_group *tpg, | |
528 | struct se_port *port, | |
529 | struct se_lun *lun) | |
530 | { | |
c66ac9db NB |
531 | struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL; |
532 | ||
533 | spin_lock(&dev->se_port_lock); | |
534 | spin_lock(&lun->lun_sep_lock); | |
535 | port->sep_tpg = tpg; | |
536 | port->sep_lun = lun; | |
537 | lun->lun_sep = port; | |
538 | spin_unlock(&lun->lun_sep_lock); | |
539 | ||
540 | list_add_tail(&port->sep_list, &dev->dev_sep_list); | |
541 | spin_unlock(&dev->se_port_lock); | |
542 | ||
c87fbd56 CH |
543 | if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV && |
544 | !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) { | |
c66ac9db NB |
545 | tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port); |
546 | if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) { | |
6708bb27 | 547 | pr_err("Unable to allocate t10_alua_tg_pt" |
c66ac9db NB |
548 | "_gp_member_t\n"); |
549 | return; | |
550 | } | |
551 | spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); | |
552 | __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, | |
0fd97ccf | 553 | dev->t10_alua.default_tg_pt_gp); |
c66ac9db | 554 | spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); |
6708bb27 | 555 | pr_debug("%s/%s: Adding to default ALUA Target Port" |
c66ac9db | 556 | " Group: alua/default_tg_pt_gp\n", |
e3d6f909 | 557 | dev->transport->name, tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db NB |
558 | } |
559 | ||
560 | dev->dev_port_count++; | |
35d1efe8 | 561 | port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */ |
c66ac9db NB |
562 | } |
563 | ||
564 | /* | |
565 | * Called with struct se_device->se_port_lock spinlock held. | |
566 | */ | |
567 | static void core_release_port(struct se_device *dev, struct se_port *port) | |
5dd7ed2e | 568 | __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) |
c66ac9db NB |
569 | { |
570 | /* | |
571 | * Wait for any port reference for PR ALL_TG_PT=1 operation | |
572 | * to complete in __core_scsi3_alloc_registration() | |
573 | */ | |
574 | spin_unlock(&dev->se_port_lock); | |
575 | if (atomic_read(&port->sep_tg_pt_ref_cnt)) | |
576 | cpu_relax(); | |
577 | spin_lock(&dev->se_port_lock); | |
578 | ||
579 | core_alua_free_tg_pt_gp_mem(port); | |
580 | ||
581 | list_del(&port->sep_list); | |
582 | dev->dev_port_count--; | |
583 | kfree(port); | |
c66ac9db NB |
584 | } |
585 | ||
586 | int core_dev_export( | |
587 | struct se_device *dev, | |
588 | struct se_portal_group *tpg, | |
589 | struct se_lun *lun) | |
590 | { | |
0fd97ccf | 591 | struct se_hba *hba = dev->se_hba; |
c66ac9db NB |
592 | struct se_port *port; |
593 | ||
594 | port = core_alloc_port(dev); | |
e3d6f909 AG |
595 | if (IS_ERR(port)) |
596 | return PTR_ERR(port); | |
c66ac9db NB |
597 | |
598 | lun->lun_se_dev = dev; | |
c66ac9db | 599 | |
0fd97ccf CH |
600 | spin_lock(&hba->device_lock); |
601 | dev->export_count++; | |
602 | spin_unlock(&hba->device_lock); | |
603 | ||
c66ac9db NB |
604 | core_export_port(dev, tpg, port, lun); |
605 | return 0; | |
606 | } | |
607 | ||
608 | void core_dev_unexport( | |
609 | struct se_device *dev, | |
610 | struct se_portal_group *tpg, | |
611 | struct se_lun *lun) | |
612 | { | |
0fd97ccf | 613 | struct se_hba *hba = dev->se_hba; |
c66ac9db NB |
614 | struct se_port *port = lun->lun_sep; |
615 | ||
616 | spin_lock(&lun->lun_sep_lock); | |
617 | if (lun->lun_se_dev == NULL) { | |
618 | spin_unlock(&lun->lun_sep_lock); | |
619 | return; | |
620 | } | |
621 | spin_unlock(&lun->lun_sep_lock); | |
622 | ||
623 | spin_lock(&dev->se_port_lock); | |
c66ac9db NB |
624 | core_release_port(dev, port); |
625 | spin_unlock(&dev->se_port_lock); | |
626 | ||
0fd97ccf CH |
627 | spin_lock(&hba->device_lock); |
628 | dev->export_count--; | |
629 | spin_unlock(&hba->device_lock); | |
630 | ||
c66ac9db NB |
631 | lun->lun_se_dev = NULL; |
632 | } | |
633 | ||
0fd97ccf | 634 | static void se_release_vpd_for_dev(struct se_device *dev) |
c66ac9db NB |
635 | { |
636 | struct t10_vpd *vpd, *vpd_tmp; | |
637 | ||
0fd97ccf | 638 | spin_lock(&dev->t10_wwn.t10_vpd_lock); |
c66ac9db | 639 | list_for_each_entry_safe(vpd, vpd_tmp, |
0fd97ccf | 640 | &dev->t10_wwn.t10_vpd_list, vpd_list) { |
c66ac9db NB |
641 | list_del(&vpd->vpd_list); |
642 | kfree(vpd); | |
643 | } | |
0fd97ccf | 644 | spin_unlock(&dev->t10_wwn.t10_vpd_lock); |
c66ac9db NB |
645 | } |
646 | ||
c8045372 | 647 | static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size) |
525a48a2 | 648 | { |
3e03989b RD |
649 | u32 aligned_max_sectors; |
650 | u32 alignment; | |
525a48a2 NB |
651 | /* |
652 | * Limit max_sectors to a PAGE_SIZE aligned value for modern | |
653 | * transport_allocate_data_tasks() operation. | |
654 | */ | |
3e03989b RD |
655 | alignment = max(1ul, PAGE_SIZE / block_size); |
656 | aligned_max_sectors = rounddown(max_sectors, alignment); | |
657 | ||
658 | if (max_sectors != aligned_max_sectors) | |
659 | pr_info("Rounding down aligned max_sectors from %u to %u\n", | |
660 | max_sectors, aligned_max_sectors); | |
525a48a2 | 661 | |
3e03989b | 662 | return aligned_max_sectors; |
525a48a2 NB |
663 | } |
664 | ||
c66ac9db NB |
665 | int se_dev_set_max_unmap_lba_count( |
666 | struct se_device *dev, | |
667 | u32 max_unmap_lba_count) | |
668 | { | |
0fd97ccf | 669 | dev->dev_attrib.max_unmap_lba_count = max_unmap_lba_count; |
6708bb27 | 670 | pr_debug("dev[%p]: Set max_unmap_lba_count: %u\n", |
0fd97ccf | 671 | dev, dev->dev_attrib.max_unmap_lba_count); |
c66ac9db NB |
672 | return 0; |
673 | } | |
674 | ||
675 | int se_dev_set_max_unmap_block_desc_count( | |
676 | struct se_device *dev, | |
677 | u32 max_unmap_block_desc_count) | |
678 | { | |
0fd97ccf | 679 | dev->dev_attrib.max_unmap_block_desc_count = |
e3d6f909 | 680 | max_unmap_block_desc_count; |
6708bb27 | 681 | pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u\n", |
0fd97ccf | 682 | dev, dev->dev_attrib.max_unmap_block_desc_count); |
c66ac9db NB |
683 | return 0; |
684 | } | |
685 | ||
686 | int se_dev_set_unmap_granularity( | |
687 | struct se_device *dev, | |
688 | u32 unmap_granularity) | |
689 | { | |
0fd97ccf | 690 | dev->dev_attrib.unmap_granularity = unmap_granularity; |
6708bb27 | 691 | pr_debug("dev[%p]: Set unmap_granularity: %u\n", |
0fd97ccf | 692 | dev, dev->dev_attrib.unmap_granularity); |
c66ac9db NB |
693 | return 0; |
694 | } | |
695 | ||
696 | int se_dev_set_unmap_granularity_alignment( | |
697 | struct se_device *dev, | |
698 | u32 unmap_granularity_alignment) | |
699 | { | |
0fd97ccf | 700 | dev->dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment; |
6708bb27 | 701 | pr_debug("dev[%p]: Set unmap_granularity_alignment: %u\n", |
0fd97ccf | 702 | dev, dev->dev_attrib.unmap_granularity_alignment); |
c66ac9db NB |
703 | return 0; |
704 | } | |
705 | ||
773cbaf7 NB |
706 | int se_dev_set_max_write_same_len( |
707 | struct se_device *dev, | |
708 | u32 max_write_same_len) | |
709 | { | |
710 | dev->dev_attrib.max_write_same_len = max_write_same_len; | |
711 | pr_debug("dev[%p]: Set max_write_same_len: %u\n", | |
712 | dev, dev->dev_attrib.max_write_same_len); | |
713 | return 0; | |
714 | } | |
715 | ||
c66ac9db NB |
716 | int se_dev_set_emulate_dpo(struct se_device *dev, int flag) |
717 | { | |
f55918fa | 718 | if (flag != 0 && flag != 1) { |
6708bb27 | 719 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 720 | return -EINVAL; |
c66ac9db | 721 | } |
f55918fa | 722 | |
c638830d AG |
723 | if (flag) { |
724 | pr_err("dpo_emulated not supported\n"); | |
725 | return -EINVAL; | |
726 | } | |
727 | ||
728 | return 0; | |
c66ac9db NB |
729 | } |
730 | ||
731 | int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) | |
732 | { | |
f55918fa | 733 | if (flag != 0 && flag != 1) { |
6708bb27 | 734 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 735 | return -EINVAL; |
c66ac9db | 736 | } |
f55918fa | 737 | |
fd30e931 NB |
738 | if (flag && |
739 | dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { | |
740 | pr_err("emulate_fua_write not supported for pSCSI\n"); | |
e3d6f909 | 741 | return -EINVAL; |
c66ac9db | 742 | } |
0fd97ccf | 743 | dev->dev_attrib.emulate_fua_write = flag; |
6708bb27 | 744 | pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n", |
0fd97ccf | 745 | dev, dev->dev_attrib.emulate_fua_write); |
c66ac9db NB |
746 | return 0; |
747 | } | |
748 | ||
749 | int se_dev_set_emulate_fua_read(struct se_device *dev, int flag) | |
750 | { | |
f55918fa | 751 | if (flag != 0 && flag != 1) { |
6708bb27 | 752 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 753 | return -EINVAL; |
c66ac9db | 754 | } |
f55918fa | 755 | |
c638830d AG |
756 | if (flag) { |
757 | pr_err("ua read emulated not supported\n"); | |
758 | return -EINVAL; | |
759 | } | |
760 | ||
761 | return 0; | |
c66ac9db NB |
762 | } |
763 | ||
764 | int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) | |
765 | { | |
f55918fa | 766 | if (flag != 0 && flag != 1) { |
6708bb27 | 767 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 768 | return -EINVAL; |
c66ac9db | 769 | } |
fd30e931 NB |
770 | if (flag && |
771 | dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { | |
772 | pr_err("emulate_write_cache not supported for pSCSI\n"); | |
e3d6f909 | 773 | return -EINVAL; |
c66ac9db | 774 | } |
0fd97ccf | 775 | dev->dev_attrib.emulate_write_cache = flag; |
6708bb27 | 776 | pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", |
0fd97ccf | 777 | dev, dev->dev_attrib.emulate_write_cache); |
c66ac9db NB |
778 | return 0; |
779 | } | |
780 | ||
781 | int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag) | |
782 | { | |
783 | if ((flag != 0) && (flag != 1) && (flag != 2)) { | |
6708bb27 | 784 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 785 | return -EINVAL; |
c66ac9db NB |
786 | } |
787 | ||
0fd97ccf | 788 | if (dev->export_count) { |
6708bb27 | 789 | pr_err("dev[%p]: Unable to change SE Device" |
0fd97ccf CH |
790 | " UA_INTRLCK_CTRL while export_count is %d\n", |
791 | dev, dev->export_count); | |
e3d6f909 | 792 | return -EINVAL; |
c66ac9db | 793 | } |
0fd97ccf | 794 | dev->dev_attrib.emulate_ua_intlck_ctrl = flag; |
6708bb27 | 795 | pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", |
0fd97ccf | 796 | dev, dev->dev_attrib.emulate_ua_intlck_ctrl); |
c66ac9db NB |
797 | |
798 | return 0; | |
799 | } | |
800 | ||
801 | int se_dev_set_emulate_tas(struct se_device *dev, int flag) | |
802 | { | |
803 | if ((flag != 0) && (flag != 1)) { | |
6708bb27 | 804 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 805 | return -EINVAL; |
c66ac9db NB |
806 | } |
807 | ||
0fd97ccf | 808 | if (dev->export_count) { |
6708bb27 | 809 | pr_err("dev[%p]: Unable to change SE Device TAS while" |
0fd97ccf CH |
810 | " export_count is %d\n", |
811 | dev, dev->export_count); | |
e3d6f909 | 812 | return -EINVAL; |
c66ac9db | 813 | } |
0fd97ccf | 814 | dev->dev_attrib.emulate_tas = flag; |
6708bb27 | 815 | pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", |
0fd97ccf | 816 | dev, (dev->dev_attrib.emulate_tas) ? "Enabled" : "Disabled"); |
c66ac9db NB |
817 | |
818 | return 0; | |
819 | } | |
820 | ||
821 | int se_dev_set_emulate_tpu(struct se_device *dev, int flag) | |
822 | { | |
823 | if ((flag != 0) && (flag != 1)) { | |
6708bb27 | 824 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 825 | return -EINVAL; |
c66ac9db NB |
826 | } |
827 | /* | |
828 | * We expect this value to be non-zero when generic Block Layer | |
829 | * Discard supported is detected iblock_create_virtdevice(). | |
830 | */ | |
0fd97ccf | 831 | if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { |
6708bb27 | 832 | pr_err("Generic Block Discard not supported\n"); |
c66ac9db NB |
833 | return -ENOSYS; |
834 | } | |
835 | ||
0fd97ccf | 836 | dev->dev_attrib.emulate_tpu = flag; |
6708bb27 | 837 | pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", |
c66ac9db NB |
838 | dev, flag); |
839 | return 0; | |
840 | } | |
841 | ||
842 | int se_dev_set_emulate_tpws(struct se_device *dev, int flag) | |
843 | { | |
844 | if ((flag != 0) && (flag != 1)) { | |
6708bb27 | 845 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 846 | return -EINVAL; |
c66ac9db NB |
847 | } |
848 | /* | |
849 | * We expect this value to be non-zero when generic Block Layer | |
850 | * Discard supported is detected iblock_create_virtdevice(). | |
851 | */ | |
0fd97ccf | 852 | if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { |
6708bb27 | 853 | pr_err("Generic Block Discard not supported\n"); |
c66ac9db NB |
854 | return -ENOSYS; |
855 | } | |
856 | ||
0fd97ccf | 857 | dev->dev_attrib.emulate_tpws = flag; |
6708bb27 | 858 | pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", |
c66ac9db NB |
859 | dev, flag); |
860 | return 0; | |
861 | } | |
862 | ||
863 | int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag) | |
864 | { | |
865 | if ((flag != 0) && (flag != 1)) { | |
6708bb27 | 866 | pr_err("Illegal value %d\n", flag); |
e3d6f909 | 867 | return -EINVAL; |
c66ac9db | 868 | } |
0fd97ccf | 869 | dev->dev_attrib.enforce_pr_isids = flag; |
6708bb27 | 870 | pr_debug("dev[%p]: SE Device enforce_pr_isids bit: %s\n", dev, |
0fd97ccf | 871 | (dev->dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled"); |
c66ac9db NB |
872 | return 0; |
873 | } | |
874 | ||
e22a7f07 RD |
875 | int se_dev_set_is_nonrot(struct se_device *dev, int flag) |
876 | { | |
877 | if ((flag != 0) && (flag != 1)) { | |
878 | printk(KERN_ERR "Illegal value %d\n", flag); | |
879 | return -EINVAL; | |
880 | } | |
0fd97ccf | 881 | dev->dev_attrib.is_nonrot = flag; |
5de619a3 | 882 | pr_debug("dev[%p]: SE Device is_nonrot bit: %d\n", |
e22a7f07 RD |
883 | dev, flag); |
884 | return 0; | |
885 | } | |
886 | ||
5de619a3 NB |
887 | int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag) |
888 | { | |
889 | if (flag != 0) { | |
890 | printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted" | |
891 | " reordering not implemented\n", dev); | |
892 | return -ENOSYS; | |
893 | } | |
0fd97ccf | 894 | dev->dev_attrib.emulate_rest_reord = flag; |
5de619a3 NB |
895 | pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", dev, flag); |
896 | return 0; | |
897 | } | |
898 | ||
c66ac9db NB |
899 | /* |
900 | * Note, this can only be called on unexported SE Device Object. | |
901 | */ | |
902 | int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth) | |
903 | { | |
0fd97ccf | 904 | if (dev->export_count) { |
6708bb27 | 905 | pr_err("dev[%p]: Unable to change SE Device TCQ while" |
0fd97ccf CH |
906 | " export_count is %d\n", |
907 | dev, dev->export_count); | |
e3d6f909 | 908 | return -EINVAL; |
c66ac9db | 909 | } |
6708bb27 AG |
910 | if (!queue_depth) { |
911 | pr_err("dev[%p]: Illegal ZERO value for queue" | |
c66ac9db | 912 | "_depth\n", dev); |
e3d6f909 | 913 | return -EINVAL; |
c66ac9db NB |
914 | } |
915 | ||
e3d6f909 | 916 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
0fd97ccf | 917 | if (queue_depth > dev->dev_attrib.hw_queue_depth) { |
6708bb27 | 918 | pr_err("dev[%p]: Passed queue_depth: %u" |
c66ac9db NB |
919 | " exceeds TCM/SE_Device TCQ: %u\n", |
920 | dev, queue_depth, | |
0fd97ccf | 921 | dev->dev_attrib.hw_queue_depth); |
e3d6f909 | 922 | return -EINVAL; |
c66ac9db NB |
923 | } |
924 | } else { | |
0fd97ccf CH |
925 | if (queue_depth > dev->dev_attrib.queue_depth) { |
926 | if (queue_depth > dev->dev_attrib.hw_queue_depth) { | |
6708bb27 | 927 | pr_err("dev[%p]: Passed queue_depth:" |
c66ac9db NB |
928 | " %u exceeds TCM/SE_Device MAX" |
929 | " TCQ: %u\n", dev, queue_depth, | |
0fd97ccf | 930 | dev->dev_attrib.hw_queue_depth); |
e3d6f909 | 931 | return -EINVAL; |
c66ac9db NB |
932 | } |
933 | } | |
934 | } | |
935 | ||
0fd97ccf | 936 | dev->dev_attrib.queue_depth = dev->queue_depth = queue_depth; |
6708bb27 | 937 | pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", |
c66ac9db NB |
938 | dev, queue_depth); |
939 | return 0; | |
940 | } | |
941 | ||
015487b8 RD |
942 | int se_dev_set_fabric_max_sectors(struct se_device *dev, u32 fabric_max_sectors) |
943 | { | |
0fd97ccf | 944 | if (dev->export_count) { |
015487b8 | 945 | pr_err("dev[%p]: Unable to change SE Device" |
0fd97ccf CH |
946 | " fabric_max_sectors while export_count is %d\n", |
947 | dev, dev->export_count); | |
015487b8 RD |
948 | return -EINVAL; |
949 | } | |
950 | if (!fabric_max_sectors) { | |
951 | pr_err("dev[%p]: Illegal ZERO value for" | |
952 | " fabric_max_sectors\n", dev); | |
953 | return -EINVAL; | |
954 | } | |
955 | if (fabric_max_sectors < DA_STATUS_MAX_SECTORS_MIN) { | |
956 | pr_err("dev[%p]: Passed fabric_max_sectors: %u less than" | |
957 | " DA_STATUS_MAX_SECTORS_MIN: %u\n", dev, fabric_max_sectors, | |
958 | DA_STATUS_MAX_SECTORS_MIN); | |
959 | return -EINVAL; | |
960 | } | |
961 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { | |
0fd97ccf | 962 | if (fabric_max_sectors > dev->dev_attrib.hw_max_sectors) { |
015487b8 RD |
963 | pr_err("dev[%p]: Passed fabric_max_sectors: %u" |
964 | " greater than TCM/SE_Device max_sectors:" | |
965 | " %u\n", dev, fabric_max_sectors, | |
0fd97ccf | 966 | dev->dev_attrib.hw_max_sectors); |
015487b8 RD |
967 | return -EINVAL; |
968 | } | |
969 | } else { | |
970 | if (fabric_max_sectors > DA_STATUS_MAX_SECTORS_MAX) { | |
971 | pr_err("dev[%p]: Passed fabric_max_sectors: %u" | |
972 | " greater than DA_STATUS_MAX_SECTORS_MAX:" | |
973 | " %u\n", dev, fabric_max_sectors, | |
974 | DA_STATUS_MAX_SECTORS_MAX); | |
975 | return -EINVAL; | |
976 | } | |
977 | } | |
978 | /* | |
979 | * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks() | |
980 | */ | |
981 | fabric_max_sectors = se_dev_align_max_sectors(fabric_max_sectors, | |
0fd97ccf | 982 | dev->dev_attrib.block_size); |
015487b8 | 983 | |
0fd97ccf | 984 | dev->dev_attrib.fabric_max_sectors = fabric_max_sectors; |
015487b8 RD |
985 | pr_debug("dev[%p]: SE Device max_sectors changed to %u\n", |
986 | dev, fabric_max_sectors); | |
987 | return 0; | |
988 | } | |
989 | ||
c66ac9db NB |
990 | int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) |
991 | { | |
0fd97ccf | 992 | if (dev->export_count) { |
6708bb27 | 993 | pr_err("dev[%p]: Unable to change SE Device" |
0fd97ccf CH |
994 | " optimal_sectors while export_count is %d\n", |
995 | dev, dev->export_count); | |
c66ac9db NB |
996 | return -EINVAL; |
997 | } | |
e3d6f909 | 998 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
6708bb27 | 999 | pr_err("dev[%p]: Passed optimal_sectors cannot be" |
c66ac9db NB |
1000 | " changed for TCM/pSCSI\n", dev); |
1001 | return -EINVAL; | |
1002 | } | |
0fd97ccf | 1003 | if (optimal_sectors > dev->dev_attrib.fabric_max_sectors) { |
6708bb27 | 1004 | pr_err("dev[%p]: Passed optimal_sectors %u cannot be" |
015487b8 | 1005 | " greater than fabric_max_sectors: %u\n", dev, |
0fd97ccf | 1006 | optimal_sectors, dev->dev_attrib.fabric_max_sectors); |
c66ac9db NB |
1007 | return -EINVAL; |
1008 | } | |
1009 | ||
0fd97ccf | 1010 | dev->dev_attrib.optimal_sectors = optimal_sectors; |
6708bb27 | 1011 | pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", |
c66ac9db NB |
1012 | dev, optimal_sectors); |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | int se_dev_set_block_size(struct se_device *dev, u32 block_size) | |
1017 | { | |
0fd97ccf | 1018 | if (dev->export_count) { |
6708bb27 | 1019 | pr_err("dev[%p]: Unable to change SE Device block_size" |
0fd97ccf CH |
1020 | " while export_count is %d\n", |
1021 | dev, dev->export_count); | |
e3d6f909 | 1022 | return -EINVAL; |
c66ac9db NB |
1023 | } |
1024 | ||
1025 | if ((block_size != 512) && | |
1026 | (block_size != 1024) && | |
1027 | (block_size != 2048) && | |
1028 | (block_size != 4096)) { | |
6708bb27 | 1029 | pr_err("dev[%p]: Illegal value for block_device: %u" |
c66ac9db NB |
1030 | " for SE device, must be 512, 1024, 2048 or 4096\n", |
1031 | dev, block_size); | |
e3d6f909 | 1032 | return -EINVAL; |
c66ac9db NB |
1033 | } |
1034 | ||
e3d6f909 | 1035 | if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { |
6708bb27 | 1036 | pr_err("dev[%p]: Not allowed to change block_size for" |
c66ac9db NB |
1037 | " Physical Device, use for Linux/SCSI to change" |
1038 | " block_size for underlying hardware\n", dev); | |
e3d6f909 | 1039 | return -EINVAL; |
c66ac9db NB |
1040 | } |
1041 | ||
0fd97ccf | 1042 | dev->dev_attrib.block_size = block_size; |
6708bb27 | 1043 | pr_debug("dev[%p]: SE Device block_size changed to %u\n", |
c66ac9db NB |
1044 | dev, block_size); |
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | struct se_lun *core_dev_add_lun( | |
1049 | struct se_portal_group *tpg, | |
c66ac9db NB |
1050 | struct se_device *dev, |
1051 | u32 lun) | |
1052 | { | |
1053 | struct se_lun *lun_p; | |
8d9efe53 | 1054 | int rc; |
c66ac9db | 1055 | |
c66ac9db | 1056 | lun_p = core_tpg_pre_addlun(tpg, lun); |
8d9efe53 SAS |
1057 | if (IS_ERR(lun_p)) |
1058 | return lun_p; | |
c66ac9db | 1059 | |
58d92618 NB |
1060 | rc = core_tpg_post_addlun(tpg, lun_p, |
1061 | TRANSPORT_LUNFLAGS_READ_WRITE, dev); | |
8d9efe53 SAS |
1062 | if (rc < 0) |
1063 | return ERR_PTR(rc); | |
c66ac9db | 1064 | |
6708bb27 | 1065 | pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from" |
e3d6f909 AG |
1066 | " CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(), |
1067 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun_p->unpacked_lun, | |
2dca673b | 1068 | tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id); |
c66ac9db NB |
1069 | /* |
1070 | * Update LUN maps for dynamically added initiators when | |
1071 | * generate_node_acl is enabled. | |
1072 | */ | |
e3d6f909 | 1073 | if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) { |
c66ac9db | 1074 | struct se_node_acl *acl; |
28638887 | 1075 | spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db | 1076 | list_for_each_entry(acl, &tpg->acl_node_list, acl_list) { |
052605c6 NB |
1077 | if (acl->dynamic_node_acl && |
1078 | (!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only || | |
1079 | !tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) { | |
28638887 | 1080 | spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db | 1081 | core_tpg_add_node_to_devs(acl, tpg); |
28638887 | 1082 | spin_lock_irq(&tpg->acl_node_lock); |
c66ac9db NB |
1083 | } |
1084 | } | |
28638887 | 1085 | spin_unlock_irq(&tpg->acl_node_lock); |
c66ac9db NB |
1086 | } |
1087 | ||
1088 | return lun_p; | |
1089 | } | |
1090 | ||
1091 | /* core_dev_del_lun(): | |
1092 | * | |
1093 | * | |
1094 | */ | |
1095 | int core_dev_del_lun( | |
1096 | struct se_portal_group *tpg, | |
1097 | u32 unpacked_lun) | |
1098 | { | |
1099 | struct se_lun *lun; | |
c66ac9db | 1100 | |
8d9efe53 SAS |
1101 | lun = core_tpg_pre_dellun(tpg, unpacked_lun); |
1102 | if (IS_ERR(lun)) | |
1103 | return PTR_ERR(lun); | |
c66ac9db NB |
1104 | |
1105 | core_tpg_post_dellun(tpg, lun); | |
1106 | ||
6708bb27 | 1107 | pr_debug("%s_TPG[%u]_LUN[%u] - Deactivated %s Logical Unit from" |
e3d6f909 AG |
1108 | " device object\n", tpg->se_tpg_tfo->get_fabric_name(), |
1109 | tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, | |
1110 | tpg->se_tpg_tfo->get_fabric_name()); | |
c66ac9db NB |
1111 | |
1112 | return 0; | |
1113 | } | |
1114 | ||
1115 | struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun) | |
1116 | { | |
1117 | struct se_lun *lun; | |
1118 | ||
1119 | spin_lock(&tpg->tpg_lun_lock); | |
1120 | if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { | |
6708bb27 | 1121 | pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS" |
c66ac9db | 1122 | "_PER_TPG-1: %u for Target Portal Group: %hu\n", |
e3d6f909 | 1123 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
c66ac9db | 1124 | TRANSPORT_MAX_LUNS_PER_TPG-1, |
e3d6f909 | 1125 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db NB |
1126 | spin_unlock(&tpg->tpg_lun_lock); |
1127 | return NULL; | |
1128 | } | |
4a5a75f3 | 1129 | lun = tpg->tpg_lun_list[unpacked_lun]; |
c66ac9db NB |
1130 | |
1131 | if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) { | |
6708bb27 | 1132 | pr_err("%s Logical Unit Number: %u is not free on" |
c66ac9db | 1133 | " Target Portal Group: %hu, ignoring request.\n", |
e3d6f909 AG |
1134 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
1135 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); | |
c66ac9db NB |
1136 | spin_unlock(&tpg->tpg_lun_lock); |
1137 | return NULL; | |
1138 | } | |
1139 | spin_unlock(&tpg->tpg_lun_lock); | |
1140 | ||
1141 | return lun; | |
1142 | } | |
1143 | ||
1144 | /* core_dev_get_lun(): | |
1145 | * | |
1146 | * | |
1147 | */ | |
1148 | static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun) | |
1149 | { | |
1150 | struct se_lun *lun; | |
1151 | ||
1152 | spin_lock(&tpg->tpg_lun_lock); | |
1153 | if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { | |
6708bb27 | 1154 | pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER" |
c66ac9db | 1155 | "_TPG-1: %u for Target Portal Group: %hu\n", |
e3d6f909 | 1156 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
c66ac9db | 1157 | TRANSPORT_MAX_LUNS_PER_TPG-1, |
e3d6f909 | 1158 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); |
c66ac9db NB |
1159 | spin_unlock(&tpg->tpg_lun_lock); |
1160 | return NULL; | |
1161 | } | |
4a5a75f3 | 1162 | lun = tpg->tpg_lun_list[unpacked_lun]; |
c66ac9db NB |
1163 | |
1164 | if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) { | |
6708bb27 | 1165 | pr_err("%s Logical Unit Number: %u is not active on" |
c66ac9db | 1166 | " Target Portal Group: %hu, ignoring request.\n", |
e3d6f909 AG |
1167 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
1168 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); | |
c66ac9db NB |
1169 | spin_unlock(&tpg->tpg_lun_lock); |
1170 | return NULL; | |
1171 | } | |
1172 | spin_unlock(&tpg->tpg_lun_lock); | |
1173 | ||
1174 | return lun; | |
1175 | } | |
1176 | ||
1177 | struct se_lun_acl *core_dev_init_initiator_node_lun_acl( | |
1178 | struct se_portal_group *tpg, | |
1179 | u32 mapped_lun, | |
1180 | char *initiatorname, | |
1181 | int *ret) | |
1182 | { | |
1183 | struct se_lun_acl *lacl; | |
1184 | struct se_node_acl *nacl; | |
1185 | ||
60d645a4 | 1186 | if (strlen(initiatorname) >= TRANSPORT_IQN_LEN) { |
6708bb27 | 1187 | pr_err("%s InitiatorName exceeds maximum size.\n", |
e3d6f909 | 1188 | tpg->se_tpg_tfo->get_fabric_name()); |
c66ac9db NB |
1189 | *ret = -EOVERFLOW; |
1190 | return NULL; | |
1191 | } | |
1192 | nacl = core_tpg_get_initiator_node_acl(tpg, initiatorname); | |
6708bb27 | 1193 | if (!nacl) { |
c66ac9db NB |
1194 | *ret = -EINVAL; |
1195 | return NULL; | |
1196 | } | |
1197 | lacl = kzalloc(sizeof(struct se_lun_acl), GFP_KERNEL); | |
6708bb27 AG |
1198 | if (!lacl) { |
1199 | pr_err("Unable to allocate memory for struct se_lun_acl.\n"); | |
c66ac9db NB |
1200 | *ret = -ENOMEM; |
1201 | return NULL; | |
1202 | } | |
1203 | ||
1204 | INIT_LIST_HEAD(&lacl->lacl_list); | |
1205 | lacl->mapped_lun = mapped_lun; | |
1206 | lacl->se_lun_nacl = nacl; | |
1207 | snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); | |
1208 | ||
1209 | return lacl; | |
1210 | } | |
1211 | ||
1212 | int core_dev_add_initiator_node_lun_acl( | |
1213 | struct se_portal_group *tpg, | |
1214 | struct se_lun_acl *lacl, | |
1215 | u32 unpacked_lun, | |
1216 | u32 lun_access) | |
1217 | { | |
1218 | struct se_lun *lun; | |
1219 | struct se_node_acl *nacl; | |
1220 | ||
1221 | lun = core_dev_get_lun(tpg, unpacked_lun); | |
6708bb27 AG |
1222 | if (!lun) { |
1223 | pr_err("%s Logical Unit Number: %u is not active on" | |
c66ac9db | 1224 | " Target Portal Group: %hu, ignoring request.\n", |
e3d6f909 AG |
1225 | tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, |
1226 | tpg->se_tpg_tfo->tpg_get_tag(tpg)); | |
c66ac9db NB |
1227 | return -EINVAL; |
1228 | } | |
1229 | ||
1230 | nacl = lacl->se_lun_nacl; | |
6708bb27 | 1231 | if (!nacl) |
c66ac9db NB |
1232 | return -EINVAL; |
1233 | ||
1234 | if ((lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) && | |
1235 | (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE)) | |
1236 | lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; | |
1237 | ||
1238 | lacl->se_lun = lun; | |
1239 | ||
e80ac6c4 AG |
1240 | if (core_enable_device_list_for_node(lun, lacl, lacl->mapped_lun, |
1241 | lun_access, nacl, tpg) < 0) | |
c66ac9db NB |
1242 | return -EINVAL; |
1243 | ||
1244 | spin_lock(&lun->lun_acl_lock); | |
1245 | list_add_tail(&lacl->lacl_list, &lun->lun_acl_list); | |
1246 | atomic_inc(&lun->lun_acl_count); | |
1247 | smp_mb__after_atomic_inc(); | |
1248 | spin_unlock(&lun->lun_acl_lock); | |
1249 | ||
6708bb27 | 1250 | pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for " |
e3d6f909 AG |
1251 | " InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(), |
1252 | tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, lacl->mapped_lun, | |
c66ac9db NB |
1253 | (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO", |
1254 | lacl->initiatorname); | |
1255 | /* | |
1256 | * Check to see if there are any existing persistent reservation APTPL | |
1257 | * pre-registrations that need to be enabled for this LUN ACL.. | |
1258 | */ | |
1259 | core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, lacl); | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | /* core_dev_del_initiator_node_lun_acl(): | |
1264 | * | |
1265 | * | |
1266 | */ | |
1267 | int core_dev_del_initiator_node_lun_acl( | |
1268 | struct se_portal_group *tpg, | |
1269 | struct se_lun *lun, | |
1270 | struct se_lun_acl *lacl) | |
1271 | { | |
1272 | struct se_node_acl *nacl; | |
1273 | ||
1274 | nacl = lacl->se_lun_nacl; | |
6708bb27 | 1275 | if (!nacl) |
c66ac9db NB |
1276 | return -EINVAL; |
1277 | ||
1278 | spin_lock(&lun->lun_acl_lock); | |
1279 | list_del(&lacl->lacl_list); | |
1280 | atomic_dec(&lun->lun_acl_count); | |
1281 | smp_mb__after_atomic_dec(); | |
1282 | spin_unlock(&lun->lun_acl_lock); | |
1283 | ||
e80ac6c4 AG |
1284 | core_disable_device_list_for_node(lun, NULL, lacl->mapped_lun, |
1285 | TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); | |
c66ac9db NB |
1286 | |
1287 | lacl->se_lun = NULL; | |
1288 | ||
6708bb27 | 1289 | pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for" |
c66ac9db | 1290 | " InitiatorNode: %s Mapped LUN: %u\n", |
e3d6f909 AG |
1291 | tpg->se_tpg_tfo->get_fabric_name(), |
1292 | tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, | |
c66ac9db NB |
1293 | lacl->initiatorname, lacl->mapped_lun); |
1294 | ||
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | void core_dev_free_initiator_node_lun_acl( | |
1299 | struct se_portal_group *tpg, | |
1300 | struct se_lun_acl *lacl) | |
1301 | { | |
6708bb27 | 1302 | pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s" |
e3d6f909 AG |
1303 | " Mapped LUN: %u\n", tpg->se_tpg_tfo->get_fabric_name(), |
1304 | tpg->se_tpg_tfo->tpg_get_tag(tpg), | |
1305 | tpg->se_tpg_tfo->get_fabric_name(), | |
c66ac9db NB |
1306 | lacl->initiatorname, lacl->mapped_lun); |
1307 | ||
1308 | kfree(lacl); | |
1309 | } | |
1310 | ||
0fd97ccf CH |
1311 | static void scsi_dump_inquiry(struct se_device *dev) |
1312 | { | |
1313 | struct t10_wwn *wwn = &dev->t10_wwn; | |
1314 | char buf[17]; | |
1315 | int i, device_type; | |
1316 | /* | |
1317 | * Print Linux/SCSI style INQUIRY formatting to the kernel ring buffer | |
1318 | */ | |
1319 | for (i = 0; i < 8; i++) | |
1320 | if (wwn->vendor[i] >= 0x20) | |
1321 | buf[i] = wwn->vendor[i]; | |
1322 | else | |
1323 | buf[i] = ' '; | |
1324 | buf[i] = '\0'; | |
1325 | pr_debug(" Vendor: %s\n", buf); | |
1326 | ||
1327 | for (i = 0; i < 16; i++) | |
1328 | if (wwn->model[i] >= 0x20) | |
1329 | buf[i] = wwn->model[i]; | |
1330 | else | |
1331 | buf[i] = ' '; | |
1332 | buf[i] = '\0'; | |
1333 | pr_debug(" Model: %s\n", buf); | |
1334 | ||
1335 | for (i = 0; i < 4; i++) | |
1336 | if (wwn->revision[i] >= 0x20) | |
1337 | buf[i] = wwn->revision[i]; | |
1338 | else | |
1339 | buf[i] = ' '; | |
1340 | buf[i] = '\0'; | |
1341 | pr_debug(" Revision: %s\n", buf); | |
1342 | ||
1343 | device_type = dev->transport->get_device_type(dev); | |
1344 | pr_debug(" Type: %s ", scsi_device_type(device_type)); | |
0fd97ccf CH |
1345 | } |
1346 | ||
1347 | struct se_device *target_alloc_device(struct se_hba *hba, const char *name) | |
1348 | { | |
1349 | struct se_device *dev; | |
1350 | ||
1351 | dev = hba->transport->alloc_device(hba, name); | |
1352 | if (!dev) | |
1353 | return NULL; | |
1354 | ||
0ff87549 | 1355 | dev->dev_link_magic = SE_DEV_LINK_MAGIC; |
0fd97ccf CH |
1356 | dev->se_hba = hba; |
1357 | dev->transport = hba->transport; | |
1358 | ||
1359 | INIT_LIST_HEAD(&dev->dev_list); | |
1360 | INIT_LIST_HEAD(&dev->dev_sep_list); | |
1361 | INIT_LIST_HEAD(&dev->dev_tmr_list); | |
1362 | INIT_LIST_HEAD(&dev->delayed_cmd_list); | |
1363 | INIT_LIST_HEAD(&dev->state_list); | |
1364 | INIT_LIST_HEAD(&dev->qf_cmd_list); | |
1365 | spin_lock_init(&dev->stats_lock); | |
1366 | spin_lock_init(&dev->execute_task_lock); | |
1367 | spin_lock_init(&dev->delayed_cmd_lock); | |
1368 | spin_lock_init(&dev->dev_reservation_lock); | |
1369 | spin_lock_init(&dev->se_port_lock); | |
1370 | spin_lock_init(&dev->se_tmr_lock); | |
1371 | spin_lock_init(&dev->qf_cmd_lock); | |
1372 | atomic_set(&dev->dev_ordered_id, 0); | |
1373 | INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list); | |
1374 | spin_lock_init(&dev->t10_wwn.t10_vpd_lock); | |
1375 | INIT_LIST_HEAD(&dev->t10_pr.registration_list); | |
1376 | INIT_LIST_HEAD(&dev->t10_pr.aptpl_reg_list); | |
1377 | spin_lock_init(&dev->t10_pr.registration_lock); | |
1378 | spin_lock_init(&dev->t10_pr.aptpl_reg_lock); | |
1379 | INIT_LIST_HEAD(&dev->t10_alua.tg_pt_gps_list); | |
1380 | spin_lock_init(&dev->t10_alua.tg_pt_gps_lock); | |
1381 | ||
1382 | dev->t10_pr.pr_aptpl_buf_len = PR_APTPL_BUF_LEN; | |
1383 | dev->t10_wwn.t10_dev = dev; | |
1384 | dev->t10_alua.t10_dev = dev; | |
1385 | ||
1386 | dev->dev_attrib.da_dev = dev; | |
1387 | dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO; | |
1388 | dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE; | |
1389 | dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ; | |
1390 | dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE; | |
1391 | dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL; | |
1392 | dev->dev_attrib.emulate_tas = DA_EMULATE_TAS; | |
1393 | dev->dev_attrib.emulate_tpu = DA_EMULATE_TPU; | |
1394 | dev->dev_attrib.emulate_tpws = DA_EMULATE_TPWS; | |
0fd97ccf CH |
1395 | dev->dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS; |
1396 | dev->dev_attrib.is_nonrot = DA_IS_NONROT; | |
1397 | dev->dev_attrib.emulate_rest_reord = DA_EMULATE_REST_REORD; | |
1398 | dev->dev_attrib.max_unmap_lba_count = DA_MAX_UNMAP_LBA_COUNT; | |
1399 | dev->dev_attrib.max_unmap_block_desc_count = | |
1400 | DA_MAX_UNMAP_BLOCK_DESC_COUNT; | |
1401 | dev->dev_attrib.unmap_granularity = DA_UNMAP_GRANULARITY_DEFAULT; | |
1402 | dev->dev_attrib.unmap_granularity_alignment = | |
1403 | DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT; | |
773cbaf7 | 1404 | dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN; |
0fd97ccf CH |
1405 | dev->dev_attrib.fabric_max_sectors = DA_FABRIC_MAX_SECTORS; |
1406 | dev->dev_attrib.optimal_sectors = DA_FABRIC_MAX_SECTORS; | |
1407 | ||
0fd97ccf CH |
1408 | return dev; |
1409 | } | |
1410 | ||
1411 | int target_configure_device(struct se_device *dev) | |
1412 | { | |
1413 | struct se_hba *hba = dev->se_hba; | |
1414 | int ret; | |
1415 | ||
1416 | if (dev->dev_flags & DF_CONFIGURED) { | |
1417 | pr_err("se_dev->se_dev_ptr already set for storage" | |
1418 | " object\n"); | |
1419 | return -EEXIST; | |
1420 | } | |
1421 | ||
1422 | ret = dev->transport->configure_device(dev); | |
1423 | if (ret) | |
1424 | goto out; | |
1425 | dev->dev_flags |= DF_CONFIGURED; | |
1426 | ||
1427 | /* | |
1428 | * XXX: there is not much point to have two different values here.. | |
1429 | */ | |
1430 | dev->dev_attrib.block_size = dev->dev_attrib.hw_block_size; | |
1431 | dev->dev_attrib.queue_depth = dev->dev_attrib.hw_queue_depth; | |
1432 | ||
1433 | /* | |
1434 | * Align max_hw_sectors down to PAGE_SIZE I/O transfers | |
1435 | */ | |
1436 | dev->dev_attrib.hw_max_sectors = | |
1437 | se_dev_align_max_sectors(dev->dev_attrib.hw_max_sectors, | |
1438 | dev->dev_attrib.hw_block_size); | |
1439 | ||
1440 | dev->dev_index = scsi_get_new_index(SCSI_DEVICE_INDEX); | |
1441 | dev->creation_time = get_jiffies_64(); | |
1442 | ||
0fd97ccf CH |
1443 | ret = core_setup_alua(dev); |
1444 | if (ret) | |
1445 | goto out; | |
1446 | ||
1447 | /* | |
1448 | * Startup the struct se_device processing thread | |
1449 | */ | |
1450 | dev->tmr_wq = alloc_workqueue("tmr-%s", WQ_MEM_RECLAIM | WQ_UNBOUND, 1, | |
1451 | dev->transport->name); | |
1452 | if (!dev->tmr_wq) { | |
1453 | pr_err("Unable to create tmr workqueue for %s\n", | |
1454 | dev->transport->name); | |
1455 | ret = -ENOMEM; | |
1456 | goto out_free_alua; | |
1457 | } | |
1458 | ||
1459 | /* | |
1460 | * Setup work_queue for QUEUE_FULL | |
1461 | */ | |
1462 | INIT_WORK(&dev->qf_work_queue, target_qf_do_work); | |
1463 | ||
1464 | /* | |
1465 | * Preload the initial INQUIRY const values if we are doing | |
1466 | * anything virtual (IBLOCK, FILEIO, RAMDISK), but not for TCM/pSCSI | |
1467 | * passthrough because this is being provided by the backend LLD. | |
1468 | */ | |
1469 | if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) { | |
1470 | strncpy(&dev->t10_wwn.vendor[0], "LIO-ORG", 8); | |
1471 | strncpy(&dev->t10_wwn.model[0], | |
1472 | dev->transport->inquiry_prod, 16); | |
1473 | strncpy(&dev->t10_wwn.revision[0], | |
1474 | dev->transport->inquiry_rev, 4); | |
1475 | } | |
1476 | ||
1477 | scsi_dump_inquiry(dev); | |
1478 | ||
1479 | spin_lock(&hba->device_lock); | |
1480 | hba->dev_count++; | |
1481 | spin_unlock(&hba->device_lock); | |
1482 | return 0; | |
1483 | ||
1484 | out_free_alua: | |
1485 | core_alua_free_lu_gp_mem(dev); | |
1486 | out: | |
1487 | se_release_vpd_for_dev(dev); | |
1488 | return ret; | |
1489 | } | |
1490 | ||
1491 | void target_free_device(struct se_device *dev) | |
1492 | { | |
1493 | struct se_hba *hba = dev->se_hba; | |
1494 | ||
1495 | WARN_ON(!list_empty(&dev->dev_sep_list)); | |
1496 | ||
1497 | if (dev->dev_flags & DF_CONFIGURED) { | |
1498 | destroy_workqueue(dev->tmr_wq); | |
1499 | ||
1500 | spin_lock(&hba->device_lock); | |
1501 | hba->dev_count--; | |
1502 | spin_unlock(&hba->device_lock); | |
1503 | } | |
1504 | ||
1505 | core_alua_free_lu_gp_mem(dev); | |
1506 | core_scsi3_free_all_registrations(dev); | |
1507 | se_release_vpd_for_dev(dev); | |
1508 | ||
1509 | dev->transport->free_device(dev); | |
1510 | } | |
1511 | ||
c66ac9db NB |
1512 | int core_dev_setup_virtual_lun0(void) |
1513 | { | |
1514 | struct se_hba *hba; | |
1515 | struct se_device *dev; | |
c66ac9db NB |
1516 | char buf[16]; |
1517 | int ret; | |
1518 | ||
6708bb27 | 1519 | hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE); |
c66ac9db NB |
1520 | if (IS_ERR(hba)) |
1521 | return PTR_ERR(hba); | |
1522 | ||
0fd97ccf CH |
1523 | dev = target_alloc_device(hba, "virt_lun0"); |
1524 | if (!dev) { | |
c66ac9db | 1525 | ret = -ENOMEM; |
0fd97ccf | 1526 | goto out_free_hba; |
c66ac9db | 1527 | } |
c66ac9db NB |
1528 | |
1529 | memset(buf, 0, 16); | |
1530 | sprintf(buf, "rd_pages=8"); | |
0fd97ccf | 1531 | hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf)); |
c66ac9db | 1532 | |
0fd97ccf CH |
1533 | ret = target_configure_device(dev); |
1534 | if (ret) | |
1535 | goto out_free_se_dev; | |
c66ac9db | 1536 | |
0fd97ccf CH |
1537 | lun0_hba = hba; |
1538 | g_lun0_dev = dev; | |
c66ac9db | 1539 | return 0; |
0fd97ccf CH |
1540 | |
1541 | out_free_se_dev: | |
1542 | target_free_device(dev); | |
1543 | out_free_hba: | |
1544 | core_delete_hba(hba); | |
c66ac9db NB |
1545 | return ret; |
1546 | } | |
1547 | ||
1548 | ||
1549 | void core_dev_release_virtual_lun0(void) | |
1550 | { | |
e3d6f909 | 1551 | struct se_hba *hba = lun0_hba; |
c66ac9db | 1552 | |
6708bb27 | 1553 | if (!hba) |
c66ac9db NB |
1554 | return; |
1555 | ||
e3d6f909 | 1556 | if (g_lun0_dev) |
0fd97ccf | 1557 | target_free_device(g_lun0_dev); |
c66ac9db NB |
1558 | core_delete_hba(hba); |
1559 | } |