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75f8c1f6 NB |
1 | /******************************************************************************* |
2 | * This file contains tcm implementation using v4 configfs fabric infrastructure | |
3 | * for QLogic target mode HBAs | |
4 | * | |
4c76251e | 5 | * (c) Copyright 2010-2013 Datera, Inc. |
75f8c1f6 | 6 | * |
4c76251e | 7 | * Author: Nicholas A. Bellinger <nab@daterainc.com> |
75f8c1f6 NB |
8 | * |
9 | * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from | |
10 | * the TCM_FC / Open-FCoE.org fabric module. | |
11 | * | |
12 | * Copyright (c) 2010 Cisco Systems, Inc | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | ****************************************************************************/ | |
24 | ||
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <generated/utsrelease.h> | |
29 | #include <linux/utsname.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/list.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/kthread.h> | |
34 | #include <linux/types.h> | |
35 | #include <linux/string.h> | |
36 | #include <linux/configfs.h> | |
37 | #include <linux/ctype.h> | |
75f8c1f6 NB |
38 | #include <asm/unaligned.h> |
39 | #include <scsi/scsi.h> | |
40 | #include <scsi/scsi_host.h> | |
41 | #include <scsi/scsi_device.h> | |
42 | #include <scsi/scsi_cmnd.h> | |
43 | #include <target/target_core_base.h> | |
44 | #include <target/target_core_fabric.h> | |
45 | #include <target/target_core_fabric_configfs.h> | |
46 | #include <target/target_core_configfs.h> | |
47 | #include <target/configfs_macros.h> | |
48 | ||
49 | #include "qla_def.h" | |
50 | #include "qla_target.h" | |
51 | #include "tcm_qla2xxx.h" | |
52 | ||
4d6609c4 HM |
53 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
54 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; | |
55 | ||
9ac8928e CH |
56 | static const struct target_core_fabric_ops tcm_qla2xxx_ops; |
57 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops; | |
75f8c1f6 | 58 | |
75f8c1f6 NB |
59 | /* |
60 | * Parse WWN. | |
61 | * If strict, we require lower-case hex and colon separators to be sure | |
62 | * the name is the same as what would be generated by ft_format_wwn() | |
63 | * so the name and wwn are mapped one-to-one. | |
64 | */ | |
65 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
66 | { | |
67 | const char *cp; | |
68 | char c; | |
69 | u32 nibble; | |
70 | u32 byte = 0; | |
71 | u32 pos = 0; | |
72 | u32 err; | |
73 | ||
74 | *wwn = 0; | |
75 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
76 | c = *cp; | |
77 | if (c == '\n' && cp[1] == '\0') | |
78 | continue; | |
79 | if (strict && pos++ == 2 && byte++ < 7) { | |
80 | pos = 0; | |
81 | if (c == ':') | |
82 | continue; | |
83 | err = 1; | |
84 | goto fail; | |
85 | } | |
86 | if (c == '\0') { | |
87 | err = 2; | |
88 | if (strict && byte != 8) | |
89 | goto fail; | |
90 | return cp - name; | |
91 | } | |
92 | err = 3; | |
93 | if (isdigit(c)) | |
94 | nibble = c - '0'; | |
95 | else if (isxdigit(c) && (islower(c) || !strict)) | |
96 | nibble = tolower(c) - 'a' + 10; | |
97 | else | |
98 | goto fail; | |
99 | *wwn = (*wwn << 4) | nibble; | |
100 | } | |
101 | err = 4; | |
102 | fail: | |
103 | pr_debug("err %u len %zu pos %u byte %u\n", | |
104 | err, cp - name, pos, byte); | |
105 | return -1; | |
106 | } | |
107 | ||
108 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
109 | { | |
110 | u8 b[8]; | |
111 | ||
112 | put_unaligned_be64(wwn, b); | |
113 | return snprintf(buf, len, | |
114 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
115 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
116 | } | |
117 | ||
118 | static char *tcm_qla2xxx_get_fabric_name(void) | |
119 | { | |
120 | return "qla2xxx"; | |
121 | } | |
122 | ||
123 | /* | |
124 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
125 | */ | |
126 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
127 | { | |
d4f75b56 | 128 | unsigned int i, j; |
75f8c1f6 NB |
129 | u8 wwn[8]; |
130 | ||
131 | memset(wwn, 0, sizeof(wwn)); | |
132 | ||
133 | /* Validate and store the new name */ | |
134 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
135 | int value; |
136 | ||
75f8c1f6 NB |
137 | value = hex_to_bin(*ns++); |
138 | if (value >= 0) | |
139 | j = (j << 4) | value; | |
140 | else | |
141 | return -EINVAL; | |
142 | ||
143 | if (i % 2) { | |
144 | wwn[i/2] = j & 0xff; | |
145 | j = 0; | |
146 | } | |
147 | } | |
148 | ||
149 | *nm = wwn_to_u64(wwn); | |
150 | return 0; | |
151 | } | |
152 | ||
153 | /* | |
154 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
155 | * store_fc_host_vport_create() | |
156 | */ | |
157 | static int tcm_qla2xxx_npiv_parse_wwn( | |
158 | const char *name, | |
159 | size_t count, | |
160 | u64 *wwpn, | |
161 | u64 *wwnn) | |
162 | { | |
163 | unsigned int cnt = count; | |
164 | int rc; | |
165 | ||
166 | *wwpn = 0; | |
167 | *wwnn = 0; | |
168 | ||
169 | /* count may include a LF at end of string */ | |
0e8cd71c | 170 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
171 | cnt--; |
172 | ||
173 | /* validate we have enough characters for WWPN */ | |
174 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
175 | return -EINVAL; | |
176 | ||
177 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
178 | if (rc != 0) | |
179 | return rc; | |
180 | ||
181 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
182 | if (rc != 0) | |
183 | return rc; | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
75f8c1f6 NB |
188 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
189 | { | |
190 | return "qla2xxx_npiv"; | |
191 | } | |
192 | ||
193 | static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg) | |
194 | { | |
195 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
196 | struct tcm_qla2xxx_tpg, se_tpg); | |
197 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
198 | u8 proto_id; | |
199 | ||
200 | switch (lport->lport_proto_id) { | |
201 | case SCSI_PROTOCOL_FCP: | |
202 | default: | |
203 | proto_id = fc_get_fabric_proto_ident(se_tpg); | |
204 | break; | |
205 | } | |
206 | ||
207 | return proto_id; | |
208 | } | |
209 | ||
210 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) | |
211 | { | |
212 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
213 | struct tcm_qla2xxx_tpg, se_tpg); | |
214 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
215 | ||
c046aa0f | 216 | return lport->lport_naa_name; |
75f8c1f6 NB |
217 | } |
218 | ||
75f8c1f6 NB |
219 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
220 | { | |
221 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
222 | struct tcm_qla2xxx_tpg, se_tpg); | |
223 | return tpg->lport_tpgt; | |
224 | } | |
225 | ||
226 | static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg) | |
227 | { | |
228 | return 1; | |
229 | } | |
230 | ||
231 | static u32 tcm_qla2xxx_get_pr_transport_id( | |
232 | struct se_portal_group *se_tpg, | |
233 | struct se_node_acl *se_nacl, | |
234 | struct t10_pr_registration *pr_reg, | |
235 | int *format_code, | |
236 | unsigned char *buf) | |
237 | { | |
238 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
239 | struct tcm_qla2xxx_tpg, se_tpg); | |
240 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
241 | int ret = 0; | |
242 | ||
243 | switch (lport->lport_proto_id) { | |
244 | case SCSI_PROTOCOL_FCP: | |
245 | default: | |
246 | ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, | |
247 | format_code, buf); | |
248 | break; | |
249 | } | |
250 | ||
251 | return ret; | |
252 | } | |
253 | ||
254 | static u32 tcm_qla2xxx_get_pr_transport_id_len( | |
255 | struct se_portal_group *se_tpg, | |
256 | struct se_node_acl *se_nacl, | |
257 | struct t10_pr_registration *pr_reg, | |
258 | int *format_code) | |
259 | { | |
260 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
261 | struct tcm_qla2xxx_tpg, se_tpg); | |
262 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
263 | int ret = 0; | |
264 | ||
265 | switch (lport->lport_proto_id) { | |
266 | case SCSI_PROTOCOL_FCP: | |
267 | default: | |
268 | ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, | |
269 | format_code); | |
270 | break; | |
271 | } | |
272 | ||
273 | return ret; | |
274 | } | |
275 | ||
276 | static char *tcm_qla2xxx_parse_pr_out_transport_id( | |
277 | struct se_portal_group *se_tpg, | |
278 | const char *buf, | |
279 | u32 *out_tid_len, | |
280 | char **port_nexus_ptr) | |
281 | { | |
282 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
283 | struct tcm_qla2xxx_tpg, se_tpg); | |
284 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
285 | char *tid = NULL; | |
286 | ||
287 | switch (lport->lport_proto_id) { | |
288 | case SCSI_PROTOCOL_FCP: | |
289 | default: | |
290 | tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, | |
291 | port_nexus_ptr); | |
292 | break; | |
293 | } | |
294 | ||
295 | return tid; | |
296 | } | |
297 | ||
298 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) | |
299 | { | |
300 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
301 | struct tcm_qla2xxx_tpg, se_tpg); | |
302 | ||
a309f489 | 303 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
304 | } |
305 | ||
306 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
307 | { | |
308 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
309 | struct tcm_qla2xxx_tpg, se_tpg); | |
310 | ||
a309f489 | 311 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
312 | } |
313 | ||
314 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
315 | { | |
316 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
317 | struct tcm_qla2xxx_tpg, se_tpg); | |
318 | ||
a309f489 | 319 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
320 | } |
321 | ||
322 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
323 | { | |
324 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
325 | struct tcm_qla2xxx_tpg, se_tpg); | |
326 | ||
a309f489 | 327 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
328 | } |
329 | ||
de04a8aa AG |
330 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
331 | { | |
332 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
333 | struct tcm_qla2xxx_tpg, se_tpg); | |
334 | ||
a309f489 | 335 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
336 | } |
337 | ||
64b16887 NB |
338 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
339 | { | |
340 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
341 | struct tcm_qla2xxx_tpg, se_tpg); | |
342 | ||
343 | return tpg->tpg_attrib.fabric_prot_type; | |
344 | } | |
345 | ||
75f8c1f6 NB |
346 | static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl( |
347 | struct se_portal_group *se_tpg) | |
348 | { | |
349 | struct tcm_qla2xxx_nacl *nacl; | |
350 | ||
351 | nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL); | |
352 | if (!nacl) { | |
6efb3c0a | 353 | pr_err("Unable to allocate struct tcm_qla2xxx_nacl\n"); |
75f8c1f6 NB |
354 | return NULL; |
355 | } | |
356 | ||
357 | return &nacl->se_node_acl; | |
358 | } | |
359 | ||
360 | static void tcm_qla2xxx_release_fabric_acl( | |
361 | struct se_portal_group *se_tpg, | |
362 | struct se_node_acl *se_nacl) | |
363 | { | |
364 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
365 | struct tcm_qla2xxx_nacl, se_node_acl); | |
366 | kfree(nacl); | |
367 | } | |
368 | ||
369 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) | |
370 | { | |
371 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
372 | struct tcm_qla2xxx_tpg, se_tpg); | |
373 | ||
374 | return tpg->lport_tpgt; | |
375 | } | |
376 | ||
377 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
378 | { | |
379 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
380 | struct qla_tgt_mgmt_cmd, free_work); | |
381 | ||
382 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
383 | } | |
384 | ||
385 | /* | |
386 | * Called from qla_target_template->free_mcmd(), and will call | |
387 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
388 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
389 | */ | |
390 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
391 | { | |
392 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
393 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
394 | } | |
395 | ||
396 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
397 | { | |
398 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
399 | ||
e07f8f65 SK |
400 | cmd->cmd_in_wq = 0; |
401 | ||
402 | WARN_ON(cmd->cmd_flags & BIT_16); | |
403 | ||
404 | cmd->cmd_flags |= BIT_16; | |
75f8c1f6 NB |
405 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
406 | } | |
407 | ||
408 | /* | |
409 | * Called from qla_target_template->free_cmd(), and will call | |
410 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
411 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
412 | */ | |
413 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
414 | { | |
e07f8f65 | 415 | cmd->cmd_in_wq = 1; |
75f8c1f6 NB |
416 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
417 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
418 | } | |
419 | ||
420 | /* | |
421 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
422 | */ | |
423 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
424 | { | |
e07f8f65 SK |
425 | struct qla_tgt_cmd *cmd; |
426 | ||
427 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
428 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
429 | cmd->cmd_flags |= BIT_14; | |
430 | } | |
431 | ||
75f8c1f6 NB |
432 | return target_put_sess_cmd(se_cmd->se_sess, se_cmd); |
433 | } | |
434 | ||
435 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
436 | * fabric descriptor @se_cmd command to release | |
437 | */ | |
438 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
439 | { | |
440 | struct qla_tgt_cmd *cmd; | |
441 | ||
442 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
443 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
444 | struct qla_tgt_mgmt_cmd, se_cmd); | |
445 | qlt_free_mcmd(mcmd); | |
446 | return; | |
447 | } | |
448 | ||
449 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
450 | qlt_free_cmd(cmd); | |
451 | } | |
452 | ||
453 | static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess) | |
454 | { | |
455 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
456 | struct scsi_qla_host *vha; | |
457 | unsigned long flags; | |
458 | ||
459 | BUG_ON(!sess); | |
460 | vha = sess->vha; | |
461 | ||
462 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
1c7b13fe | 463 | target_sess_cmd_list_set_waiting(se_sess); |
75f8c1f6 NB |
464 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
465 | ||
466 | return 1; | |
467 | } | |
468 | ||
469 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) | |
470 | { | |
471 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
472 | struct scsi_qla_host *vha; | |
473 | unsigned long flags; | |
474 | ||
475 | BUG_ON(!sess); | |
476 | vha = sess->vha; | |
477 | ||
478 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
479 | qlt_unreg_sess(sess); | |
480 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
481 | } | |
482 | ||
483 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
484 | { | |
485 | return 0; | |
486 | } | |
487 | ||
75f8c1f6 NB |
488 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
489 | { | |
490 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
491 | struct qla_tgt_cmd, se_cmd); | |
492 | ||
493 | cmd->bufflen = se_cmd->data_length; | |
b3faa2e8 | 494 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
495 | |
496 | cmd->sg_cnt = se_cmd->t_data_nents; | |
497 | cmd->sg = se_cmd->t_data_sg; | |
498 | ||
f83adb61 QT |
499 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
500 | cmd->prot_sg = se_cmd->t_prot_sg; | |
501 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
502 | se_cmd->pi_err = 0; | |
503 | ||
75f8c1f6 NB |
504 | /* |
505 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
506 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
507 | */ | |
508 | return qlt_rdy_to_xfer(cmd); | |
509 | } | |
510 | ||
511 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
512 | { | |
513 | unsigned long flags; | |
514 | /* | |
515 | * Check for WRITE_PENDING status to determine if we need to wait for | |
516 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
517 | */ | |
518 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
519 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
520 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
521 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
522 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
523 | 3000); | |
524 | return 0; | |
525 | } | |
526 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
532 | { | |
533 | return; | |
534 | } | |
535 | ||
536 | static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd) | |
537 | { | |
dd9c4eff HM |
538 | struct qla_tgt_cmd *cmd; |
539 | ||
540 | /* check for task mgmt cmd */ | |
541 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) | |
542 | return 0xffffffff; | |
543 | ||
544 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
75f8c1f6 NB |
545 | |
546 | return cmd->tag; | |
547 | } | |
548 | ||
549 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) | |
550 | { | |
551 | return 0; | |
552 | } | |
553 | ||
554 | /* | |
555 | * Called from process context in qla_target.c:qlt_do_work() code | |
556 | */ | |
557 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
558 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
559 | int data_dir, int bidi) | |
560 | { | |
561 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
562 | struct se_session *se_sess; | |
563 | struct qla_tgt_sess *sess; | |
564 | int flags = TARGET_SCF_ACK_KREF; | |
565 | ||
566 | if (bidi) | |
567 | flags |= TARGET_SCF_BIDI_OP; | |
568 | ||
569 | sess = cmd->sess; | |
570 | if (!sess) { | |
571 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); | |
572 | return -EINVAL; | |
573 | } | |
574 | ||
575 | se_sess = sess->se_sess; | |
576 | if (!se_sess) { | |
577 | pr_err("Unable to locate active struct se_session\n"); | |
578 | return -EINVAL; | |
579 | } | |
580 | ||
d6dfc868 | 581 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
582 | cmd->unpacked_lun, data_length, fcp_task_attr, |
583 | data_dir, flags); | |
75f8c1f6 NB |
584 | } |
585 | ||
43381ce8 | 586 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
587 | { |
588 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
75f8c1f6 | 589 | |
75f8c1f6 NB |
590 | /* |
591 | * Ensure that the complete FCP WRITE payload has been received. | |
592 | * Otherwise return an exception via CHECK_CONDITION status. | |
593 | */ | |
e07f8f65 SK |
594 | cmd->cmd_in_wq = 0; |
595 | cmd->cmd_flags |= BIT_11; | |
75f8c1f6 NB |
596 | if (!cmd->write_data_transferred) { |
597 | /* | |
598 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
599 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
600 | */ | |
43381ce8 CH |
601 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
602 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
603 | return; | |
75f8c1f6 | 604 | } |
75f8c1f6 | 605 | |
f83adb61 QT |
606 | if (cmd->se_cmd.pi_err) |
607 | transport_generic_request_failure(&cmd->se_cmd, | |
608 | cmd->se_cmd.pi_err); | |
609 | else | |
610 | transport_generic_request_failure(&cmd->se_cmd, | |
611 | TCM_CHECK_CONDITION_ABORT_CMD); | |
612 | ||
43381ce8 | 613 | return; |
75f8c1f6 | 614 | } |
43381ce8 CH |
615 | |
616 | return target_execute_cmd(&cmd->se_cmd); | |
617 | } | |
618 | ||
619 | /* | |
620 | * Called from qla_target.c:qlt_do_ctio_completion() | |
621 | */ | |
622 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
623 | { | |
e07f8f65 SK |
624 | cmd->cmd_flags |= BIT_10; |
625 | cmd->cmd_in_wq = 1; | |
43381ce8 CH |
626 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
627 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
75f8c1f6 NB |
628 | } |
629 | ||
f83adb61 QT |
630 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
631 | { | |
632 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
633 | ||
634 | /* take an extra kref to prevent cmd free too early. | |
635 | * need to wait for SCSI status/check condition to | |
636 | * finish responding generate by transport_generic_request_failure. | |
637 | */ | |
638 | kref_get(&cmd->se_cmd.cmd_kref); | |
639 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); | |
640 | } | |
641 | ||
642 | /* | |
643 | * Called from qla_target.c:qlt_do_ctio_completion() | |
644 | */ | |
645 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) | |
646 | { | |
647 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); | |
648 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
649 | } | |
650 | ||
75f8c1f6 NB |
651 | /* |
652 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
653 | */ | |
9389c3c9 RD |
654 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
655 | uint8_t tmr_func, uint32_t tag) | |
75f8c1f6 NB |
656 | { |
657 | struct qla_tgt_sess *sess = mcmd->sess; | |
658 | struct se_cmd *se_cmd = &mcmd->se_cmd; | |
659 | ||
660 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
661 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); | |
662 | } | |
663 | ||
664 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
665 | { | |
666 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
667 | struct qla_tgt_cmd, se_cmd); | |
668 | ||
e07f8f65 | 669 | cmd->cmd_flags |= BIT_4; |
75f8c1f6 | 670 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 671 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
672 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
673 | ||
674 | cmd->sg_cnt = se_cmd->t_data_nents; | |
675 | cmd->sg = se_cmd->t_data_sg; | |
676 | cmd->offset = 0; | |
e07f8f65 | 677 | cmd->cmd_flags |= BIT_3; |
75f8c1f6 | 678 | |
f83adb61 QT |
679 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
680 | cmd->prot_sg = se_cmd->t_prot_sg; | |
681 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
682 | se_cmd->pi_err = 0; | |
683 | ||
75f8c1f6 NB |
684 | /* |
685 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
686 | */ | |
687 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
688 | se_cmd->scsi_status); | |
689 | } | |
690 | ||
691 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
692 | { | |
693 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
694 | struct qla_tgt_cmd, se_cmd); | |
695 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
696 | ||
697 | cmd->bufflen = se_cmd->data_length; | |
698 | cmd->sg = NULL; | |
699 | cmd->sg_cnt = 0; | |
700 | cmd->offset = 0; | |
b3faa2e8 | 701 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 | 702 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
e07f8f65 SK |
703 | if (cmd->cmd_flags & BIT_5) { |
704 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); | |
705 | dump_stack(); | |
706 | } | |
707 | cmd->cmd_flags |= BIT_5; | |
75f8c1f6 NB |
708 | |
709 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
710 | /* | |
711 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
712 | * for qla_tgt_xmit_response LLD code | |
713 | */ | |
b5aff3d2 RD |
714 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
715 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
716 | se_cmd->residual_count = 0; | |
717 | } | |
75f8c1f6 | 718 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 719 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
720 | |
721 | cmd->bufflen = 0; | |
722 | } | |
723 | /* | |
724 | * Now queue status response to qla2xxx LLD code and response ring | |
725 | */ | |
726 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
727 | } | |
728 | ||
b79fafac | 729 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
730 | { |
731 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
732 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
733 | struct qla_tgt_mgmt_cmd, se_cmd); | |
734 | ||
735 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
736 | mcmd, se_tmr->function, se_tmr->response); | |
737 | /* | |
738 | * Do translation between TCM TM response codes and | |
739 | * QLA2xxx FC TM response codes. | |
740 | */ | |
741 | switch (se_tmr->response) { | |
742 | case TMR_FUNCTION_COMPLETE: | |
743 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
744 | break; | |
745 | case TMR_TASK_DOES_NOT_EXIST: | |
746 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
747 | break; | |
748 | case TMR_FUNCTION_REJECTED: | |
749 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
750 | break; | |
751 | case TMR_LUN_DOES_NOT_EXIST: | |
752 | default: | |
753 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
754 | break; | |
755 | } | |
756 | /* | |
757 | * Queue the TM response to QLA2xxx LLD to build a | |
758 | * CTIO response packet. | |
759 | */ | |
760 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
761 | } |
762 | ||
131e6abc NB |
763 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
764 | { | |
765 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
766 | struct qla_tgt_cmd, se_cmd); | |
767 | struct scsi_qla_host *vha = cmd->vha; | |
768 | struct qla_hw_data *ha = vha->hw; | |
769 | ||
770 | if (!cmd->sg_mapped) | |
771 | return; | |
772 | ||
773 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); | |
774 | cmd->sg_mapped = 0; | |
775 | } | |
776 | ||
f2d5d9b9 NB |
777 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
778 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); | |
75f8c1f6 NB |
779 | /* |
780 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
781 | */ | |
782 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) | |
783 | { | |
784 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
785 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
786 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
787 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
788 | struct tcm_qla2xxx_lport, lport_wwn); | |
789 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
790 | struct tcm_qla2xxx_nacl, se_node_acl); | |
791 | void *node; | |
792 | ||
793 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
794 | ||
795 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
796 | if (WARN_ON(node && (node != se_nacl))) { |
797 | /* | |
798 | * The nacl no longer matches what we think it should be. | |
799 | * Most likely a new dynamic acl has been added while | |
800 | * someone dropped the hardware lock. It clearly is a | |
801 | * bug elsewhere, but this bit can't make things worse. | |
802 | */ | |
803 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
804 | node, GFP_ATOMIC); | |
805 | } | |
75f8c1f6 NB |
806 | |
807 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
808 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
809 | /* |
810 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
811 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
812 | * | |
813 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
814 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
815 | * I/O to complete, to avoid a race between session shutdown execution | |
816 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
817 | */ | |
818 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
819 | } |
820 | ||
aaf68b75 JE |
821 | static void tcm_qla2xxx_release_session(struct kref *kref) |
822 | { | |
823 | struct se_session *se_sess = container_of(kref, | |
824 | struct se_session, sess_kref); | |
825 | ||
826 | qlt_unreg_sess(se_sess->fabric_sess_ptr); | |
827 | } | |
828 | ||
829 | static void tcm_qla2xxx_put_session(struct se_session *se_sess) | |
830 | { | |
831 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
832 | struct qla_hw_data *ha = sess->vha->hw; | |
833 | unsigned long flags; | |
834 | ||
835 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
836 | kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session); | |
837 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
838 | } | |
839 | ||
75f8c1f6 NB |
840 | static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess) |
841 | { | |
0e8cd71c SK |
842 | if (!sess) |
843 | return; | |
844 | ||
08234e3a JE |
845 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
846 | kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session); | |
75f8c1f6 NB |
847 | } |
848 | ||
849 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) | |
850 | { | |
08234e3a JE |
851 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
852 | target_sess_cmd_list_set_waiting(sess->se_sess); | |
75f8c1f6 NB |
853 | } |
854 | ||
855 | static struct se_node_acl *tcm_qla2xxx_make_nodeacl( | |
856 | struct se_portal_group *se_tpg, | |
857 | struct config_group *group, | |
858 | const char *name) | |
859 | { | |
75f8c1f6 NB |
860 | struct se_node_acl *se_nacl, *se_nacl_new; |
861 | struct tcm_qla2xxx_nacl *nacl; | |
862 | u64 wwnn; | |
863 | u32 qla2xxx_nexus_depth; | |
75f8c1f6 NB |
864 | |
865 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
866 | return ERR_PTR(-EINVAL); | |
867 | ||
868 | se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg); | |
869 | if (!se_nacl_new) | |
870 | return ERR_PTR(-ENOMEM); | |
871 | /* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */ | |
872 | qla2xxx_nexus_depth = 1; | |
873 | ||
874 | /* | |
875 | * se_nacl_new may be released by core_tpg_add_initiator_node_acl() | |
876 | * when converting a NodeACL from demo mode -> explict | |
877 | */ | |
878 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, | |
879 | name, qla2xxx_nexus_depth); | |
880 | if (IS_ERR(se_nacl)) { | |
881 | tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new); | |
882 | return se_nacl; | |
883 | } | |
884 | /* | |
885 | * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN | |
886 | */ | |
887 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
888 | nacl->nport_wwnn = wwnn; | |
889 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 NB |
890 | |
891 | return se_nacl; | |
892 | } | |
893 | ||
894 | static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl) | |
895 | { | |
896 | struct se_portal_group *se_tpg = se_acl->se_tpg; | |
897 | struct tcm_qla2xxx_nacl *nacl = container_of(se_acl, | |
898 | struct tcm_qla2xxx_nacl, se_node_acl); | |
899 | ||
900 | core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1); | |
901 | kfree(nacl); | |
902 | } | |
903 | ||
904 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
905 | ||
906 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
907 | \ | |
908 | static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ | |
909 | struct se_portal_group *se_tpg, \ | |
910 | char *page) \ | |
911 | { \ | |
912 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
913 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
914 | \ | |
a309f489 | 915 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
916 | } \ |
917 | \ | |
918 | static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ | |
919 | struct se_portal_group *se_tpg, \ | |
920 | const char *page, \ | |
921 | size_t count) \ | |
922 | { \ | |
923 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
924 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
925 | unsigned long val; \ | |
926 | int ret; \ | |
927 | \ | |
928 | ret = kstrtoul(page, 0, &val); \ | |
929 | if (ret < 0) { \ | |
930 | pr_err("kstrtoul() failed with" \ | |
931 | " ret: %d\n", ret); \ | |
932 | return -EINVAL; \ | |
933 | } \ | |
934 | ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ | |
935 | \ | |
936 | return (!ret) ? count : -EINVAL; \ | |
937 | } | |
938 | ||
939 | #define DEF_QLA_TPG_ATTR_BOOL(_name) \ | |
940 | \ | |
941 | static int tcm_qla2xxx_set_attrib_##_name( \ | |
942 | struct tcm_qla2xxx_tpg *tpg, \ | |
943 | unsigned long val) \ | |
944 | { \ | |
945 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ | |
946 | \ | |
947 | if ((val != 0) && (val != 1)) { \ | |
948 | pr_err("Illegal boolean value %lu\n", val); \ | |
949 | return -EINVAL; \ | |
950 | } \ | |
951 | \ | |
952 | a->_name = val; \ | |
953 | return 0; \ | |
954 | } | |
955 | ||
956 | #define QLA_TPG_ATTR(_name, _mode) \ | |
957 | TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); | |
958 | ||
959 | /* | |
960 | * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls | |
961 | */ | |
962 | DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); | |
963 | DEF_QLA_TPG_ATTRIB(generate_node_acls); | |
964 | QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | |
965 | ||
966 | /* | |
967 | Define tcm_qla2xxx_attrib_s_cache_dynamic_acls | |
968 | */ | |
969 | DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); | |
970 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); | |
971 | QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | |
972 | ||
973 | /* | |
974 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect | |
975 | */ | |
976 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); | |
977 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); | |
978 | QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | |
979 | ||
980 | /* | |
981 | * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect | |
982 | */ | |
983 | DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); | |
984 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); | |
985 | QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | |
986 | ||
de04a8aa AG |
987 | /* |
988 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only | |
989 | */ | |
990 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); | |
991 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); | |
992 | QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); | |
993 | ||
75f8c1f6 NB |
994 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
995 | &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, | |
996 | &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, | |
997 | &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, | |
998 | &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, | |
de04a8aa | 999 | &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, |
75f8c1f6 NB |
1000 | NULL, |
1001 | }; | |
1002 | ||
1003 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
1004 | ||
1005 | static ssize_t tcm_qla2xxx_tpg_show_enable( | |
1006 | struct se_portal_group *se_tpg, | |
1007 | char *page) | |
1008 | { | |
1009 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1010 | struct tcm_qla2xxx_tpg, se_tpg); | |
1011 | ||
1012 | return snprintf(page, PAGE_SIZE, "%d\n", | |
1013 | atomic_read(&tpg->lport_tpg_enabled)); | |
1014 | } | |
1015 | ||
7474f52a NB |
1016 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
1017 | { | |
1018 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
1019 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
1020 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
1021 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
1022 | ||
d588cf8f | 1023 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
7474f52a NB |
1024 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
1025 | qlt_enable_vha(base_vha); | |
1026 | } | |
1027 | complete(&base_tpg->tpg_base_comp); | |
1028 | } | |
1029 | ||
1030 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
1031 | { | |
1032 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
1033 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
1034 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
1035 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
1036 | ||
1037 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
1038 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
d588cf8f | 1039 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
7474f52a NB |
1040 | } |
1041 | complete(&base_tpg->tpg_base_comp); | |
1042 | } | |
1043 | ||
75f8c1f6 NB |
1044 | static ssize_t tcm_qla2xxx_tpg_store_enable( |
1045 | struct se_portal_group *se_tpg, | |
1046 | const char *page, | |
1047 | size_t count) | |
1048 | { | |
75f8c1f6 NB |
1049 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
1050 | struct tcm_qla2xxx_tpg, se_tpg); | |
1051 | unsigned long op; | |
1052 | int rc; | |
1053 | ||
1054 | rc = kstrtoul(page, 0, &op); | |
1055 | if (rc < 0) { | |
1056 | pr_err("kstrtoul() returned %d\n", rc); | |
1057 | return -EINVAL; | |
1058 | } | |
1059 | if ((op != 1) && (op != 0)) { | |
1060 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1061 | return -EINVAL; | |
1062 | } | |
75f8c1f6 | 1063 | if (op) { |
7474f52a NB |
1064 | if (atomic_read(&tpg->lport_tpg_enabled)) |
1065 | return -EEXIST; | |
1066 | ||
1067 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 1068 | } else { |
7474f52a NB |
1069 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
1070 | return count; | |
1071 | ||
1072 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 1073 | } |
7474f52a NB |
1074 | init_completion(&tpg->tpg_base_comp); |
1075 | schedule_work(&tpg->tpg_base_work); | |
1076 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 1077 | |
7474f52a NB |
1078 | if (op) { |
1079 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1080 | return -ENODEV; | |
1081 | } else { | |
1082 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1083 | return -EPERM; | |
1084 | } | |
75f8c1f6 NB |
1085 | return count; |
1086 | } | |
1087 | ||
1088 | TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); | |
1089 | ||
d23dbaaa NB |
1090 | static ssize_t tcm_qla2xxx_tpg_show_dynamic_sessions( |
1091 | struct se_portal_group *se_tpg, | |
1092 | char *page) | |
1093 | { | |
1094 | return target_show_dynamic_sessions(se_tpg, page); | |
1095 | } | |
1096 | ||
1097 | TF_TPG_BASE_ATTR_RO(tcm_qla2xxx, dynamic_sessions); | |
1098 | ||
64b16887 NB |
1099 | static ssize_t tcm_qla2xxx_tpg_store_fabric_prot_type( |
1100 | struct se_portal_group *se_tpg, | |
1101 | const char *page, | |
1102 | size_t count) | |
1103 | { | |
1104 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1105 | struct tcm_qla2xxx_tpg, se_tpg); | |
1106 | unsigned long val; | |
1107 | int ret = kstrtoul(page, 0, &val); | |
1108 | ||
1109 | if (ret) { | |
1110 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
1111 | return ret; | |
1112 | } | |
1113 | if (val != 0 && val != 1 && val != 3) { | |
1114 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
1115 | return -EINVAL; | |
1116 | } | |
1117 | tpg->tpg_attrib.fabric_prot_type = val; | |
1118 | ||
1119 | return count; | |
1120 | } | |
1121 | ||
1122 | static ssize_t tcm_qla2xxx_tpg_show_fabric_prot_type( | |
1123 | struct se_portal_group *se_tpg, | |
1124 | char *page) | |
1125 | { | |
1126 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1127 | struct tcm_qla2xxx_tpg, se_tpg); | |
1128 | ||
1129 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
1130 | } | |
1131 | TF_TPG_BASE_ATTR(tcm_qla2xxx, fabric_prot_type, S_IRUGO | S_IWUSR); | |
1132 | ||
75f8c1f6 NB |
1133 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
1134 | &tcm_qla2xxx_tpg_enable.attr, | |
d23dbaaa | 1135 | &tcm_qla2xxx_tpg_dynamic_sessions.attr, |
64b16887 | 1136 | &tcm_qla2xxx_tpg_fabric_prot_type.attr, |
75f8c1f6 NB |
1137 | NULL, |
1138 | }; | |
1139 | ||
1140 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
1141 | struct se_wwn *wwn, | |
1142 | struct config_group *group, | |
1143 | const char *name) | |
1144 | { | |
1145 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1146 | struct tcm_qla2xxx_lport, lport_wwn); | |
1147 | struct tcm_qla2xxx_tpg *tpg; | |
1148 | unsigned long tpgt; | |
1149 | int ret; | |
1150 | ||
1151 | if (strstr(name, "tpgt_") != name) | |
1152 | return ERR_PTR(-EINVAL); | |
1153 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1154 | return ERR_PTR(-EINVAL); | |
1155 | ||
0e8cd71c | 1156 | if ((tpgt != 1)) { |
75f8c1f6 NB |
1157 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
1158 | return ERR_PTR(-ENOSYS); | |
1159 | } | |
1160 | ||
1161 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1162 | if (!tpg) { | |
1163 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1164 | return ERR_PTR(-ENOMEM); | |
1165 | } | |
1166 | tpg->lport = lport; | |
1167 | tpg->lport_tpgt = tpgt; | |
1168 | /* | |
1169 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1170 | * NodeACLs | |
1171 | */ | |
a309f489 AG |
1172 | tpg->tpg_attrib.generate_node_acls = 1; |
1173 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1174 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1175 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
75f8c1f6 | 1176 | |
9ac8928e | 1177 | ret = core_tpg_register(&tcm_qla2xxx_ops, wwn, |
75f8c1f6 NB |
1178 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); |
1179 | if (ret < 0) { | |
1180 | kfree(tpg); | |
1181 | return NULL; | |
1182 | } | |
0e8cd71c SK |
1183 | |
1184 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1185 | |
1186 | return &tpg->se_tpg; | |
1187 | } | |
1188 | ||
1189 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1190 | { | |
1191 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1192 | struct tcm_qla2xxx_tpg, se_tpg); | |
1193 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1194 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1195 | /* |
1196 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1197 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1198 | */ | |
0e8cd71c SK |
1199 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1200 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1201 | |
1202 | core_tpg_deregister(se_tpg); | |
1203 | /* | |
1204 | * Clear local TPG=1 pointer for non NPIV mode. | |
1205 | */ | |
394d62ba | 1206 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1207 | kfree(tpg); |
1208 | } | |
1209 | ||
394d62ba NB |
1210 | static ssize_t tcm_qla2xxx_npiv_tpg_show_enable( |
1211 | struct se_portal_group *se_tpg, | |
1212 | char *page) | |
1213 | { | |
1214 | return tcm_qla2xxx_tpg_show_enable(se_tpg, page); | |
1215 | } | |
1216 | ||
1217 | static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( | |
1218 | struct se_portal_group *se_tpg, | |
1219 | const char *page, | |
1220 | size_t count) | |
1221 | { | |
1222 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
1223 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1224 | struct tcm_qla2xxx_lport, lport_wwn); | |
1225 | struct scsi_qla_host *vha = lport->qla_vha; | |
1226 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1227 | struct tcm_qla2xxx_tpg, se_tpg); | |
1228 | unsigned long op; | |
1229 | int rc; | |
1230 | ||
1231 | rc = kstrtoul(page, 0, &op); | |
1232 | if (rc < 0) { | |
1233 | pr_err("kstrtoul() returned %d\n", rc); | |
1234 | return -EINVAL; | |
1235 | } | |
1236 | if ((op != 1) && (op != 0)) { | |
1237 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1238 | return -EINVAL; | |
1239 | } | |
1240 | if (op) { | |
1241 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1242 | return -EEXIST; | |
1243 | ||
1244 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1245 | qlt_enable_vha(vha); | |
1246 | } else { | |
1247 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1248 | return count; | |
1249 | ||
1250 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1251 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1252 | } | |
1253 | ||
1254 | return count; | |
1255 | } | |
1256 | ||
1257 | TF_TPG_BASE_ATTR(tcm_qla2xxx_npiv, enable, S_IRUGO | S_IWUSR); | |
1258 | ||
1259 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
1260 | &tcm_qla2xxx_npiv_tpg_enable.attr, | |
1261 | NULL, | |
1262 | }; | |
1263 | ||
75f8c1f6 NB |
1264 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1265 | struct se_wwn *wwn, | |
1266 | struct config_group *group, | |
1267 | const char *name) | |
1268 | { | |
1269 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1270 | struct tcm_qla2xxx_lport, lport_wwn); | |
1271 | struct tcm_qla2xxx_tpg *tpg; | |
1272 | unsigned long tpgt; | |
1273 | int ret; | |
1274 | ||
1275 | if (strstr(name, "tpgt_") != name) | |
1276 | return ERR_PTR(-EINVAL); | |
1277 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1278 | return ERR_PTR(-EINVAL); | |
1279 | ||
1280 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1281 | if (!tpg) { | |
1282 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1283 | return ERR_PTR(-ENOMEM); | |
1284 | } | |
1285 | tpg->lport = lport; | |
1286 | tpg->lport_tpgt = tpgt; | |
1287 | ||
0e8cd71c SK |
1288 | /* |
1289 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1290 | * NodeACLs | |
1291 | */ | |
1292 | tpg->tpg_attrib.generate_node_acls = 1; | |
1293 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1294 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1295 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1296 | ||
9ac8928e | 1297 | ret = core_tpg_register(&tcm_qla2xxx_npiv_ops, wwn, |
75f8c1f6 NB |
1298 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); |
1299 | if (ret < 0) { | |
1300 | kfree(tpg); | |
1301 | return NULL; | |
1302 | } | |
0e8cd71c | 1303 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1304 | return &tpg->se_tpg; |
1305 | } | |
1306 | ||
1307 | /* | |
1308 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1309 | */ | |
1310 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( | |
1311 | scsi_qla_host_t *vha, | |
1312 | const uint8_t *s_id) | |
1313 | { | |
75f8c1f6 NB |
1314 | struct tcm_qla2xxx_lport *lport; |
1315 | struct se_node_acl *se_nacl; | |
1316 | struct tcm_qla2xxx_nacl *nacl; | |
1317 | u32 key; | |
1318 | ||
0e8cd71c | 1319 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1320 | if (!lport) { |
1321 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1322 | dump_stack(); | |
1323 | return NULL; | |
1324 | } | |
1325 | ||
1326 | key = (((unsigned long)s_id[0] << 16) | | |
1327 | ((unsigned long)s_id[1] << 8) | | |
1328 | (unsigned long)s_id[2]); | |
1329 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); | |
1330 | ||
1331 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1332 | if (!se_nacl) { | |
1333 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1334 | return NULL; | |
1335 | } | |
1336 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1337 | se_nacl, se_nacl->initiatorname); | |
1338 | ||
1339 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1340 | if (!nacl->qla_tgt_sess) { | |
1341 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1342 | return NULL; | |
1343 | } | |
1344 | ||
1345 | return nacl->qla_tgt_sess; | |
1346 | } | |
1347 | ||
1348 | /* | |
1349 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1350 | */ | |
1351 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1352 | struct tcm_qla2xxx_lport *lport, | |
1353 | struct se_node_acl *new_se_nacl, | |
1354 | struct tcm_qla2xxx_nacl *nacl, | |
1355 | struct se_session *se_sess, | |
1356 | struct qla_tgt_sess *qla_tgt_sess, | |
1357 | uint8_t *s_id) | |
1358 | { | |
1359 | u32 key; | |
1360 | void *slot; | |
1361 | int rc; | |
1362 | ||
1363 | key = (((unsigned long)s_id[0] << 16) | | |
1364 | ((unsigned long)s_id[1] << 8) | | |
1365 | (unsigned long)s_id[2]); | |
1366 | pr_debug("set_sess_by_s_id: %06x\n", key); | |
1367 | ||
1368 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1369 | if (!slot) { | |
1370 | if (new_se_nacl) { | |
1371 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1372 | nacl->nport_id = key; | |
1373 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1374 | new_se_nacl, GFP_ATOMIC); | |
1375 | if (rc) | |
1376 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1377 | (int)key); | |
1378 | } else { | |
1379 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1380 | } | |
1381 | ||
1382 | qla_tgt_sess->se_sess = se_sess; | |
1383 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1384 | return; | |
1385 | } | |
1386 | ||
1387 | if (nacl->qla_tgt_sess) { | |
1388 | if (new_se_nacl == NULL) { | |
1389 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1390 | btree_remove32(&lport->lport_fcport_map, key); | |
1391 | nacl->qla_tgt_sess = NULL; | |
1392 | return; | |
1393 | } | |
1394 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1395 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1396 | qla_tgt_sess->se_sess = se_sess; | |
1397 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1398 | return; | |
1399 | } | |
1400 | ||
1401 | if (new_se_nacl == NULL) { | |
1402 | pr_debug("Clearing existing fc_port entry\n"); | |
1403 | btree_remove32(&lport->lport_fcport_map, key); | |
1404 | return; | |
1405 | } | |
1406 | ||
1407 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); | |
1408 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1409 | qla_tgt_sess->se_sess = se_sess; | |
1410 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1411 | ||
1412 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", | |
1413 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1418 | */ | |
1419 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( | |
1420 | scsi_qla_host_t *vha, | |
1421 | const uint16_t loop_id) | |
1422 | { | |
75f8c1f6 NB |
1423 | struct tcm_qla2xxx_lport *lport; |
1424 | struct se_node_acl *se_nacl; | |
1425 | struct tcm_qla2xxx_nacl *nacl; | |
1426 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1427 | ||
0e8cd71c | 1428 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1429 | if (!lport) { |
1430 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1431 | dump_stack(); | |
1432 | return NULL; | |
1433 | } | |
1434 | ||
1435 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1436 | ||
1437 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1438 | se_nacl = fc_loopid->se_nacl; | |
1439 | if (!se_nacl) { | |
1440 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1441 | loop_id); | |
1442 | return NULL; | |
1443 | } | |
1444 | ||
1445 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1446 | ||
1447 | if (!nacl->qla_tgt_sess) { | |
1448 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1449 | return NULL; | |
1450 | } | |
1451 | ||
1452 | return nacl->qla_tgt_sess; | |
1453 | } | |
1454 | ||
1455 | /* | |
1456 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1457 | */ | |
1458 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1459 | struct tcm_qla2xxx_lport *lport, | |
1460 | struct se_node_acl *new_se_nacl, | |
1461 | struct tcm_qla2xxx_nacl *nacl, | |
1462 | struct se_session *se_sess, | |
1463 | struct qla_tgt_sess *qla_tgt_sess, | |
1464 | uint16_t loop_id) | |
1465 | { | |
1466 | struct se_node_acl *saved_nacl; | |
1467 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1468 | ||
1469 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1470 | ||
1471 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1472 | lport->lport_loopid_map)[loop_id]; | |
1473 | ||
1474 | saved_nacl = fc_loopid->se_nacl; | |
1475 | if (!saved_nacl) { | |
1476 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1477 | fc_loopid->se_nacl = new_se_nacl; | |
1478 | if (qla_tgt_sess->se_sess != se_sess) | |
1479 | qla_tgt_sess->se_sess = se_sess; | |
1480 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1481 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1482 | return; | |
1483 | } | |
1484 | ||
1485 | if (nacl->qla_tgt_sess) { | |
1486 | if (new_se_nacl == NULL) { | |
1487 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1488 | fc_loopid->se_nacl = NULL; | |
1489 | nacl->qla_tgt_sess = NULL; | |
1490 | return; | |
1491 | } | |
1492 | ||
1493 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1494 | fc_loopid->se_nacl = new_se_nacl; | |
1495 | if (qla_tgt_sess->se_sess != se_sess) | |
1496 | qla_tgt_sess->se_sess = se_sess; | |
1497 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1498 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1499 | return; | |
1500 | } | |
1501 | ||
1502 | if (new_se_nacl == NULL) { | |
1503 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1504 | fc_loopid->se_nacl = NULL; | |
1505 | return; | |
1506 | } | |
1507 | ||
1508 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); | |
1509 | fc_loopid->se_nacl = new_se_nacl; | |
1510 | if (qla_tgt_sess->se_sess != se_sess) | |
1511 | qla_tgt_sess->se_sess = se_sess; | |
1512 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1513 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1514 | ||
1515 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", | |
1516 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1517 | } | |
1518 | ||
f2d5d9b9 NB |
1519 | /* |
1520 | * Should always be called with qla_hw_data->hardware_lock held. | |
1521 | */ | |
1522 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
1523 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) | |
1524 | { | |
1525 | struct se_session *se_sess = sess->se_sess; | |
1526 | unsigned char be_sid[3]; | |
1527 | ||
1528 | be_sid[0] = sess->s_id.b.domain; | |
1529 | be_sid[1] = sess->s_id.b.area; | |
1530 | be_sid[2] = sess->s_id.b.al_pa; | |
1531 | ||
1532 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1533 | sess, be_sid); | |
1534 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1535 | sess, sess->loop_id); | |
1536 | } | |
1537 | ||
75f8c1f6 NB |
1538 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
1539 | { | |
1540 | struct qla_tgt *tgt = sess->tgt; | |
1541 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1542 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 NB |
1543 | struct se_session *se_sess; |
1544 | struct se_node_acl *se_nacl; | |
1545 | struct tcm_qla2xxx_lport *lport; | |
1546 | struct tcm_qla2xxx_nacl *nacl; | |
75f8c1f6 NB |
1547 | |
1548 | BUG_ON(in_interrupt()); | |
1549 | ||
1550 | se_sess = sess->se_sess; | |
1551 | if (!se_sess) { | |
1552 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); | |
1553 | dump_stack(); | |
1554 | return; | |
1555 | } | |
1556 | se_nacl = se_sess->se_node_acl; | |
1557 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1558 | ||
0e8cd71c | 1559 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1560 | if (!lport) { |
1561 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1562 | dump_stack(); | |
1563 | return; | |
1564 | } | |
be646c2d | 1565 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1566 | |
1567 | transport_deregister_session_configfs(sess->se_sess); | |
1568 | transport_deregister_session(sess->se_sess); | |
1569 | } | |
1570 | ||
1571 | /* | |
1572 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1573 | * to locate struct se_node_acl | |
1574 | */ | |
1575 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1576 | scsi_qla_host_t *vha, | |
1577 | unsigned char *fc_wwpn, | |
1578 | void *qla_tgt_sess, | |
1579 | uint8_t *s_id, | |
1580 | uint16_t loop_id) | |
1581 | { | |
1582 | struct qla_hw_data *ha = vha->hw; | |
1583 | struct tcm_qla2xxx_lport *lport; | |
1584 | struct tcm_qla2xxx_tpg *tpg; | |
1585 | struct tcm_qla2xxx_nacl *nacl; | |
1586 | struct se_portal_group *se_tpg; | |
1587 | struct se_node_acl *se_nacl; | |
1588 | struct se_session *se_sess; | |
1589 | struct qla_tgt_sess *sess = qla_tgt_sess; | |
1590 | unsigned char port_name[36]; | |
1591 | unsigned long flags; | |
51a07f84 NB |
1592 | int num_tags = (ha->fw_xcb_count) ? ha->fw_xcb_count : |
1593 | TCM_QLA2XXX_DEFAULT_TAGS; | |
75f8c1f6 | 1594 | |
0e8cd71c | 1595 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1596 | if (!lport) { |
1597 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1598 | dump_stack(); | |
1599 | return -EINVAL; | |
1600 | } | |
1601 | /* | |
1602 | * Locate the TPG=1 reference.. | |
1603 | */ | |
1604 | tpg = lport->tpg_1; | |
1605 | if (!tpg) { | |
1606 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1607 | return -EINVAL; | |
1608 | } | |
1609 | se_tpg = &tpg->se_tpg; | |
1610 | ||
51a07f84 NB |
1611 | se_sess = transport_init_session_tags(num_tags, |
1612 | sizeof(struct qla_tgt_cmd), | |
59bb0ff5 | 1613 | TARGET_PROT_ALL); |
75f8c1f6 NB |
1614 | if (IS_ERR(se_sess)) { |
1615 | pr_err("Unable to initialize struct se_session\n"); | |
1616 | return PTR_ERR(se_sess); | |
1617 | } | |
1618 | /* | |
1619 | * Format the FCP Initiator port_name into colon seperated values to | |
1620 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1621 | */ | |
1622 | memset(&port_name, 0, 36); | |
3c9786e5 | 1623 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1624 | /* |
1625 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1626 | * via ConfigFS, or via running in TPG demo mode. | |
1627 | */ | |
1628 | se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg, | |
1629 | port_name); | |
1630 | if (!se_sess->se_node_acl) { | |
1631 | transport_free_session(se_sess); | |
1632 | return -EINVAL; | |
1633 | } | |
1634 | se_nacl = se_sess->se_node_acl; | |
1635 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1636 | /* | |
1637 | * And now setup the new se_nacl and session pointers into our HW lport | |
1638 | * mappings for fabric S_ID and LOOP_ID. | |
1639 | */ | |
1640 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1641 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, | |
1642 | qla_tgt_sess, s_id); | |
1643 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess, | |
1644 | qla_tgt_sess, loop_id); | |
1645 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1646 | /* | |
1647 | * Finally register the new FC Nexus with TCM | |
1648 | */ | |
75c3d0bf | 1649 | transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); |
75f8c1f6 NB |
1650 | |
1651 | return 0; | |
1652 | } | |
1653 | ||
c8292d1d RD |
1654 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
1655 | uint16_t loop_id, bool conf_compl_supported) | |
1656 | { | |
1657 | struct qla_tgt *tgt = sess->tgt; | |
1658 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1659 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1660 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1661 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1662 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1663 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1664 | u32 key; | |
1665 | ||
1666 | ||
1667 | if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) | |
7b833558 OK |
1668 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1669 | sess, sess->port_name, | |
1670 | sess->loop_id, loop_id, sess->s_id.b.domain, | |
1671 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, | |
1672 | s_id.b.area, s_id.b.al_pa); | |
c8292d1d RD |
1673 | |
1674 | if (sess->loop_id != loop_id) { | |
1675 | /* | |
1676 | * Because we can shuffle loop IDs around and we | |
1677 | * update different sessions non-atomically, we might | |
1678 | * have overwritten this session's old loop ID | |
1679 | * already, and we might end up overwriting some other | |
1680 | * session that will be updated later. So we have to | |
1681 | * be extra careful and we can't warn about those things... | |
1682 | */ | |
1683 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1684 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1685 | ||
1686 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1687 | ||
1688 | sess->loop_id = loop_id; | |
1689 | } | |
1690 | ||
1691 | if (sess->s_id.b24 != s_id.b24) { | |
1692 | key = (((u32) sess->s_id.b.domain << 16) | | |
1693 | ((u32) sess->s_id.b.area << 8) | | |
1694 | ((u32) sess->s_id.b.al_pa)); | |
1695 | ||
1696 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
1697 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, | |
1698 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1699 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1700 | else | |
1701 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
1702 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1703 | ||
1704 | key = (((u32) s_id.b.domain << 16) | | |
1705 | ((u32) s_id.b.area << 8) | | |
1706 | ((u32) s_id.b.al_pa)); | |
1707 | ||
1708 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1709 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1710 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1711 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1712 | } else { | |
1713 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); | |
1714 | } | |
1715 | ||
1716 | sess->s_id = s_id; | |
1717 | nacl->nport_id = key; | |
1718 | } | |
1719 | ||
1720 | sess->conf_compl_supported = conf_compl_supported; | |
1721 | } | |
1722 | ||
75f8c1f6 NB |
1723 | /* |
1724 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1725 | */ | |
1726 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1727 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1728 | .handle_data = tcm_qla2xxx_handle_data, | |
f83adb61 | 1729 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
75f8c1f6 NB |
1730 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
1731 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1732 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1733 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1734 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1735 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1736 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1737 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1738 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
1739 | .put_sess = tcm_qla2xxx_put_sess, | |
1740 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, | |
1741 | }; | |
1742 | ||
1743 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1744 | { | |
1745 | int rc; | |
1746 | ||
1747 | rc = btree_init32(&lport->lport_fcport_map); | |
1748 | if (rc) { | |
1749 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1750 | return rc; | |
1751 | } | |
1752 | ||
1753 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1754 | 65536); | |
1755 | if (!lport->lport_loopid_map) { | |
1756 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1757 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1758 | btree_destroy32(&lport->lport_fcport_map); | |
1759 | return -ENOMEM; | |
1760 | } | |
1761 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1762 | * 65536); | |
1763 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1764 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1765 | return 0; | |
1766 | } | |
1767 | ||
49a47f2c NB |
1768 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1769 | void *target_lport_ptr, | |
1770 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1771 | { |
49a47f2c NB |
1772 | struct qla_hw_data *ha = vha->hw; |
1773 | struct tcm_qla2xxx_lport *lport = | |
1774 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1775 | /* |
49a47f2c | 1776 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1777 | */ |
49a47f2c NB |
1778 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1779 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1780 | lport->qla_vha = vha; |
1781 | ||
1782 | return 0; | |
1783 | } | |
1784 | ||
1785 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1786 | struct target_fabric_configfs *tf, | |
1787 | struct config_group *group, | |
1788 | const char *name) | |
1789 | { | |
1790 | struct tcm_qla2xxx_lport *lport; | |
1791 | u64 wwpn; | |
1792 | int ret = -ENODEV; | |
1793 | ||
1794 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1795 | return ERR_PTR(-EINVAL); | |
1796 | ||
1797 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1798 | if (!lport) { | |
1799 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1800 | return ERR_PTR(-ENOMEM); | |
1801 | } | |
1802 | lport->lport_wwpn = wwpn; | |
1803 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1804 | wwpn); | |
c046aa0f | 1805 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1806 | |
1807 | ret = tcm_qla2xxx_init_lport(lport); | |
1808 | if (ret != 0) | |
1809 | goto out; | |
1810 | ||
49a47f2c NB |
1811 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1812 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1813 | if (ret != 0) |
1814 | goto out_lport; | |
1815 | ||
1816 | return &lport->lport_wwn; | |
1817 | out_lport: | |
1818 | vfree(lport->lport_loopid_map); | |
1819 | btree_destroy32(&lport->lport_fcport_map); | |
1820 | out: | |
1821 | kfree(lport); | |
1822 | return ERR_PTR(ret); | |
1823 | } | |
1824 | ||
1825 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1826 | { | |
1827 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1828 | struct tcm_qla2xxx_lport, lport_wwn); | |
1829 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1830 | struct se_node_acl *node; |
1831 | u32 key = 0; | |
1832 | ||
1833 | /* | |
1834 | * Call into qla2x_target.c LLD logic to complete the | |
1835 | * shutdown of struct qla_tgt after the call to | |
1836 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1837 | */ | |
0e8cd71c SK |
1838 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1839 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1840 | |
1841 | qlt_lport_deregister(vha); | |
1842 | ||
1843 | vfree(lport->lport_loopid_map); | |
1844 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1845 | btree_remove32(&lport->lport_fcport_map, key); | |
1846 | btree_destroy32(&lport->lport_fcport_map); | |
1847 | kfree(lport); | |
1848 | } | |
1849 | ||
49a47f2c NB |
1850 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1851 | void *target_lport_ptr, | |
1852 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1853 | { | |
1854 | struct fc_vport *vport; | |
1855 | struct Scsi_Host *sh = base_vha->host; | |
1856 | struct scsi_qla_host *npiv_vha; | |
1857 | struct tcm_qla2xxx_lport *lport = | |
1858 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1859 | struct tcm_qla2xxx_lport *base_lport = |
1860 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
1861 | struct tcm_qla2xxx_tpg *base_tpg; | |
49a47f2c NB |
1862 | struct fc_vport_identifiers vport_id; |
1863 | ||
1864 | if (!qla_tgt_mode_enabled(base_vha)) { | |
1865 | pr_err("qla2xxx base_vha not enabled for target mode\n"); | |
1866 | return -EPERM; | |
1867 | } | |
1868 | ||
7474f52a NB |
1869 | if (!base_lport || !base_lport->tpg_1 || |
1870 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1871 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1872 | return -EPERM; | |
1873 | } | |
1874 | base_tpg = base_lport->tpg_1; | |
1875 | ||
49a47f2c NB |
1876 | memset(&vport_id, 0, sizeof(vport_id)); |
1877 | vport_id.port_name = npiv_wwpn; | |
1878 | vport_id.node_name = npiv_wwnn; | |
1879 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1880 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1881 | vport_id.disable = false; | |
1882 | ||
1883 | vport = fc_vport_create(sh, 0, &vport_id); | |
1884 | if (!vport) { | |
1885 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1886 | return -ENODEV; | |
1887 | } | |
1888 | /* | |
1889 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1890 | */ | |
1891 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1892 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1893 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1894 | scsi_host_get(npiv_vha->host); |
1895 | return 0; | |
1896 | } | |
1897 | ||
1898 | ||
75f8c1f6 NB |
1899 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1900 | struct target_fabric_configfs *tf, | |
1901 | struct config_group *group, | |
1902 | const char *name) | |
1903 | { | |
1904 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1905 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1906 | char *p, tmp[128]; | |
75f8c1f6 NB |
1907 | int ret; |
1908 | ||
49a47f2c NB |
1909 | snprintf(tmp, 128, "%s", name); |
1910 | ||
1911 | p = strchr(tmp, '@'); | |
1912 | if (!p) { | |
1913 | pr_err("Unable to locate NPIV '@' seperator\n"); | |
1914 | return ERR_PTR(-EINVAL); | |
1915 | } | |
1916 | *p++ = '\0'; | |
1917 | ||
1918 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1919 | return ERR_PTR(-EINVAL); | |
1920 | ||
1921 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1922 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1923 | return ERR_PTR(-EINVAL); |
1924 | ||
1925 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1926 | if (!lport) { | |
1927 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1928 | return ERR_PTR(-ENOMEM); | |
1929 | } | |
1930 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1931 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1932 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1933 | |
0e8cd71c | 1934 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1935 | if (ret != 0) |
1936 | goto out; | |
1937 | ||
49a47f2c NB |
1938 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1939 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1940 | if (ret != 0) |
1941 | goto out_lport; | |
1942 | ||
75f8c1f6 | 1943 | return &lport->lport_wwn; |
0e8cd71c SK |
1944 | out_lport: |
1945 | vfree(lport->lport_loopid_map); | |
1946 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1947 | out: |
1948 | kfree(lport); | |
1949 | return ERR_PTR(ret); | |
1950 | } | |
1951 | ||
1952 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1953 | { | |
1954 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1955 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1956 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1957 | struct qla_hw_data *ha = npiv_vha->hw; | |
1958 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1959 | ||
1960 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1961 | /* |
0e8cd71c | 1962 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1963 | */ |
49a47f2c NB |
1964 | fc_vport_terminate(npiv_vha->fc_vport); |
1965 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1966 | kfree(lport); |
1967 | } | |
1968 | ||
1969 | ||
1970 | static ssize_t tcm_qla2xxx_wwn_show_attr_version( | |
1971 | struct target_fabric_configfs *tf, | |
1972 | char *page) | |
1973 | { | |
1974 | return sprintf(page, | |
1975 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | |
1976 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1977 | utsname()->machine); | |
1978 | } | |
1979 | ||
1980 | TF_WWN_ATTR_RO(tcm_qla2xxx, version); | |
1981 | ||
1982 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
1983 | &tcm_qla2xxx_wwn_version.attr, | |
1984 | NULL, | |
1985 | }; | |
1986 | ||
9ac8928e CH |
1987 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1988 | .module = THIS_MODULE, | |
1989 | .name = "qla2xxx", | |
75f8c1f6 NB |
1990 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
1991 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, | |
1992 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, | |
1993 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
1994 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, | |
1995 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, | |
1996 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | |
1997 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | |
1998 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, | |
1999 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
2000 | .tpg_check_demo_mode_write_protect = | |
2001 | tcm_qla2xxx_check_demo_write_protect, | |
2002 | .tpg_check_prod_mode_write_protect = | |
2003 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 2004 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 2005 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 NB |
2006 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, |
2007 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, | |
2008 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, | |
75f8c1f6 NB |
2009 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
2010 | .release_cmd = tcm_qla2xxx_release_cmd, | |
aaf68b75 | 2011 | .put_session = tcm_qla2xxx_put_session, |
75f8c1f6 NB |
2012 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
2013 | .close_session = tcm_qla2xxx_close_session, | |
2014 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
2015 | .sess_get_initiator_sid = NULL, | |
2016 | .write_pending = tcm_qla2xxx_write_pending, | |
2017 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
2018 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
2019 | .get_task_tag = tcm_qla2xxx_get_task_tag, | |
2020 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | |
2021 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
2022 | .queue_status = tcm_qla2xxx_queue_status, | |
2023 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 2024 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
2025 | /* |
2026 | * Setup function pointers for generic logic in | |
2027 | * target_core_fabric_configfs.c | |
2028 | */ | |
2029 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
2030 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
2031 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
2032 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
2033 | .fabric_post_link = NULL, | |
2034 | .fabric_pre_unlink = NULL, | |
2035 | .fabric_make_np = NULL, | |
2036 | .fabric_drop_np = NULL, | |
2037 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, | |
2038 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, | |
9ac8928e CH |
2039 | |
2040 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
2041 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
2042 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
2043 | }; |
2044 | ||
9ac8928e CH |
2045 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
2046 | .module = THIS_MODULE, | |
2047 | .name = "qla2xxx_npiv", | |
75f8c1f6 NB |
2048 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
2049 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, | |
84197a36 | 2050 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 NB |
2051 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
2052 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, | |
2053 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, | |
2054 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | |
2055 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | |
0e8cd71c SK |
2056 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
2057 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
2058 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
2059 | .tpg_check_prod_mode_write_protect = | |
2060 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 2061 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 NB |
2062 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, |
2063 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, | |
2064 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, | |
0e8cd71c | 2065 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 2066 | .release_cmd = tcm_qla2xxx_release_cmd, |
aaf68b75 | 2067 | .put_session = tcm_qla2xxx_put_session, |
75f8c1f6 NB |
2068 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
2069 | .close_session = tcm_qla2xxx_close_session, | |
2070 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
2071 | .sess_get_initiator_sid = NULL, | |
2072 | .write_pending = tcm_qla2xxx_write_pending, | |
2073 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
2074 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
2075 | .get_task_tag = tcm_qla2xxx_get_task_tag, | |
2076 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | |
2077 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
2078 | .queue_status = tcm_qla2xxx_queue_status, | |
2079 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 2080 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
2081 | /* |
2082 | * Setup function pointers for generic logic in | |
2083 | * target_core_fabric_configfs.c | |
2084 | */ | |
2085 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
2086 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
2087 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
2088 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
2089 | .fabric_post_link = NULL, | |
2090 | .fabric_pre_unlink = NULL, | |
2091 | .fabric_make_np = NULL, | |
2092 | .fabric_drop_np = NULL, | |
2093 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, | |
2094 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, | |
9ac8928e CH |
2095 | |
2096 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
2097 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
2098 | }; |
2099 | ||
2100 | static int tcm_qla2xxx_register_configfs(void) | |
2101 | { | |
75f8c1f6 NB |
2102 | int ret; |
2103 | ||
2104 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | |
2105 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
2106 | utsname()->machine); | |
9ac8928e CH |
2107 | |
2108 | ret = target_register_template(&tcm_qla2xxx_ops); | |
2109 | if (ret) | |
75f8c1f6 | 2110 | return ret; |
75f8c1f6 | 2111 | |
9ac8928e CH |
2112 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
2113 | if (ret) | |
75f8c1f6 | 2114 | goto out_fabric; |
75f8c1f6 NB |
2115 | |
2116 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
2117 | WQ_MEM_RECLAIM, 0); | |
2118 | if (!tcm_qla2xxx_free_wq) { | |
2119 | ret = -ENOMEM; | |
2120 | goto out_fabric_npiv; | |
2121 | } | |
2122 | ||
2123 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
2124 | if (!tcm_qla2xxx_cmd_wq) { | |
2125 | ret = -ENOMEM; | |
2126 | goto out_free_wq; | |
2127 | } | |
2128 | ||
2129 | return 0; | |
2130 | ||
2131 | out_free_wq: | |
2132 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2133 | out_fabric_npiv: | |
9ac8928e | 2134 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 2135 | out_fabric: |
9ac8928e | 2136 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
2137 | return ret; |
2138 | } | |
2139 | ||
2140 | static void tcm_qla2xxx_deregister_configfs(void) | |
2141 | { | |
2142 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
2143 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2144 | ||
9ac8928e CH |
2145 | target_unregister_template(&tcm_qla2xxx_ops); |
2146 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
2147 | } |
2148 | ||
2149 | static int __init tcm_qla2xxx_init(void) | |
2150 | { | |
2151 | int ret; | |
2152 | ||
2153 | ret = tcm_qla2xxx_register_configfs(); | |
2154 | if (ret < 0) | |
2155 | return ret; | |
2156 | ||
2157 | return 0; | |
2158 | } | |
2159 | ||
2160 | static void __exit tcm_qla2xxx_exit(void) | |
2161 | { | |
2162 | tcm_qla2xxx_deregister_configfs(); | |
2163 | } | |
2164 | ||
2165 | MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver"); | |
2166 | MODULE_LICENSE("GPL"); | |
2167 | module_init(tcm_qla2xxx_init); | |
2168 | module_exit(tcm_qla2xxx_exit); |