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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 | ||
56 | /* Local pointer to allocated TCM configfs fabric module */ | |
57 | static struct target_fabric_configfs *tcm_qla2xxx_fabric_configfs; | |
58 | static struct target_fabric_configfs *tcm_qla2xxx_npiv_fabric_configfs; | |
75f8c1f6 | 59 | |
75f8c1f6 NB |
60 | /* |
61 | * Parse WWN. | |
62 | * If strict, we require lower-case hex and colon separators to be sure | |
63 | * the name is the same as what would be generated by ft_format_wwn() | |
64 | * so the name and wwn are mapped one-to-one. | |
65 | */ | |
66 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
67 | { | |
68 | const char *cp; | |
69 | char c; | |
70 | u32 nibble; | |
71 | u32 byte = 0; | |
72 | u32 pos = 0; | |
73 | u32 err; | |
74 | ||
75 | *wwn = 0; | |
76 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
77 | c = *cp; | |
78 | if (c == '\n' && cp[1] == '\0') | |
79 | continue; | |
80 | if (strict && pos++ == 2 && byte++ < 7) { | |
81 | pos = 0; | |
82 | if (c == ':') | |
83 | continue; | |
84 | err = 1; | |
85 | goto fail; | |
86 | } | |
87 | if (c == '\0') { | |
88 | err = 2; | |
89 | if (strict && byte != 8) | |
90 | goto fail; | |
91 | return cp - name; | |
92 | } | |
93 | err = 3; | |
94 | if (isdigit(c)) | |
95 | nibble = c - '0'; | |
96 | else if (isxdigit(c) && (islower(c) || !strict)) | |
97 | nibble = tolower(c) - 'a' + 10; | |
98 | else | |
99 | goto fail; | |
100 | *wwn = (*wwn << 4) | nibble; | |
101 | } | |
102 | err = 4; | |
103 | fail: | |
104 | pr_debug("err %u len %zu pos %u byte %u\n", | |
105 | err, cp - name, pos, byte); | |
106 | return -1; | |
107 | } | |
108 | ||
109 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
110 | { | |
111 | u8 b[8]; | |
112 | ||
113 | put_unaligned_be64(wwn, b); | |
114 | return snprintf(buf, len, | |
115 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
116 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
117 | } | |
118 | ||
119 | static char *tcm_qla2xxx_get_fabric_name(void) | |
120 | { | |
121 | return "qla2xxx"; | |
122 | } | |
123 | ||
124 | /* | |
125 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
126 | */ | |
127 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
128 | { | |
d4f75b56 | 129 | unsigned int i, j; |
75f8c1f6 NB |
130 | u8 wwn[8]; |
131 | ||
132 | memset(wwn, 0, sizeof(wwn)); | |
133 | ||
134 | /* Validate and store the new name */ | |
135 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
136 | int value; |
137 | ||
75f8c1f6 NB |
138 | value = hex_to_bin(*ns++); |
139 | if (value >= 0) | |
140 | j = (j << 4) | value; | |
141 | else | |
142 | return -EINVAL; | |
143 | ||
144 | if (i % 2) { | |
145 | wwn[i/2] = j & 0xff; | |
146 | j = 0; | |
147 | } | |
148 | } | |
149 | ||
150 | *nm = wwn_to_u64(wwn); | |
151 | return 0; | |
152 | } | |
153 | ||
154 | /* | |
155 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
156 | * store_fc_host_vport_create() | |
157 | */ | |
158 | static int tcm_qla2xxx_npiv_parse_wwn( | |
159 | const char *name, | |
160 | size_t count, | |
161 | u64 *wwpn, | |
162 | u64 *wwnn) | |
163 | { | |
164 | unsigned int cnt = count; | |
165 | int rc; | |
166 | ||
167 | *wwpn = 0; | |
168 | *wwnn = 0; | |
169 | ||
170 | /* count may include a LF at end of string */ | |
0e8cd71c | 171 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
172 | cnt--; |
173 | ||
174 | /* validate we have enough characters for WWPN */ | |
175 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
176 | return -EINVAL; | |
177 | ||
178 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
179 | if (rc != 0) | |
180 | return rc; | |
181 | ||
182 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
183 | if (rc != 0) | |
184 | return rc; | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
75f8c1f6 NB |
189 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
190 | { | |
191 | return "qla2xxx_npiv"; | |
192 | } | |
193 | ||
194 | static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg) | |
195 | { | |
196 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
197 | struct tcm_qla2xxx_tpg, se_tpg); | |
198 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
199 | u8 proto_id; | |
200 | ||
201 | switch (lport->lport_proto_id) { | |
202 | case SCSI_PROTOCOL_FCP: | |
203 | default: | |
204 | proto_id = fc_get_fabric_proto_ident(se_tpg); | |
205 | break; | |
206 | } | |
207 | ||
208 | return proto_id; | |
209 | } | |
210 | ||
211 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) | |
212 | { | |
213 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
214 | struct tcm_qla2xxx_tpg, se_tpg); | |
215 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
216 | ||
c046aa0f | 217 | return lport->lport_naa_name; |
75f8c1f6 NB |
218 | } |
219 | ||
75f8c1f6 NB |
220 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
221 | { | |
222 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
223 | struct tcm_qla2xxx_tpg, se_tpg); | |
224 | return tpg->lport_tpgt; | |
225 | } | |
226 | ||
227 | static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg) | |
228 | { | |
229 | return 1; | |
230 | } | |
231 | ||
232 | static u32 tcm_qla2xxx_get_pr_transport_id( | |
233 | struct se_portal_group *se_tpg, | |
234 | struct se_node_acl *se_nacl, | |
235 | struct t10_pr_registration *pr_reg, | |
236 | int *format_code, | |
237 | unsigned char *buf) | |
238 | { | |
239 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
240 | struct tcm_qla2xxx_tpg, se_tpg); | |
241 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
242 | int ret = 0; | |
243 | ||
244 | switch (lport->lport_proto_id) { | |
245 | case SCSI_PROTOCOL_FCP: | |
246 | default: | |
247 | ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, | |
248 | format_code, buf); | |
249 | break; | |
250 | } | |
251 | ||
252 | return ret; | |
253 | } | |
254 | ||
255 | static u32 tcm_qla2xxx_get_pr_transport_id_len( | |
256 | struct se_portal_group *se_tpg, | |
257 | struct se_node_acl *se_nacl, | |
258 | struct t10_pr_registration *pr_reg, | |
259 | int *format_code) | |
260 | { | |
261 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
262 | struct tcm_qla2xxx_tpg, se_tpg); | |
263 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
264 | int ret = 0; | |
265 | ||
266 | switch (lport->lport_proto_id) { | |
267 | case SCSI_PROTOCOL_FCP: | |
268 | default: | |
269 | ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, | |
270 | format_code); | |
271 | break; | |
272 | } | |
273 | ||
274 | return ret; | |
275 | } | |
276 | ||
277 | static char *tcm_qla2xxx_parse_pr_out_transport_id( | |
278 | struct se_portal_group *se_tpg, | |
279 | const char *buf, | |
280 | u32 *out_tid_len, | |
281 | char **port_nexus_ptr) | |
282 | { | |
283 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
284 | struct tcm_qla2xxx_tpg, se_tpg); | |
285 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
286 | char *tid = NULL; | |
287 | ||
288 | switch (lport->lport_proto_id) { | |
289 | case SCSI_PROTOCOL_FCP: | |
290 | default: | |
291 | tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, | |
292 | port_nexus_ptr); | |
293 | break; | |
294 | } | |
295 | ||
296 | return tid; | |
297 | } | |
298 | ||
299 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) | |
300 | { | |
301 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
302 | struct tcm_qla2xxx_tpg, se_tpg); | |
303 | ||
a309f489 | 304 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
305 | } |
306 | ||
307 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
308 | { | |
309 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
310 | struct tcm_qla2xxx_tpg, se_tpg); | |
311 | ||
a309f489 | 312 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
313 | } |
314 | ||
315 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
316 | { | |
317 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
318 | struct tcm_qla2xxx_tpg, se_tpg); | |
319 | ||
a309f489 | 320 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
321 | } |
322 | ||
323 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
324 | { | |
325 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
326 | struct tcm_qla2xxx_tpg, se_tpg); | |
327 | ||
a309f489 | 328 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
329 | } |
330 | ||
de04a8aa AG |
331 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
332 | { | |
333 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
334 | struct tcm_qla2xxx_tpg, se_tpg); | |
335 | ||
a309f489 | 336 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
337 | } |
338 | ||
75f8c1f6 NB |
339 | static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl( |
340 | struct se_portal_group *se_tpg) | |
341 | { | |
342 | struct tcm_qla2xxx_nacl *nacl; | |
343 | ||
344 | nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL); | |
345 | if (!nacl) { | |
6efb3c0a | 346 | pr_err("Unable to allocate struct tcm_qla2xxx_nacl\n"); |
75f8c1f6 NB |
347 | return NULL; |
348 | } | |
349 | ||
350 | return &nacl->se_node_acl; | |
351 | } | |
352 | ||
353 | static void tcm_qla2xxx_release_fabric_acl( | |
354 | struct se_portal_group *se_tpg, | |
355 | struct se_node_acl *se_nacl) | |
356 | { | |
357 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
358 | struct tcm_qla2xxx_nacl, se_node_acl); | |
359 | kfree(nacl); | |
360 | } | |
361 | ||
362 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) | |
363 | { | |
364 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
365 | struct tcm_qla2xxx_tpg, se_tpg); | |
366 | ||
367 | return tpg->lport_tpgt; | |
368 | } | |
369 | ||
370 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
371 | { | |
372 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
373 | struct qla_tgt_mgmt_cmd, free_work); | |
374 | ||
375 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
376 | } | |
377 | ||
378 | /* | |
379 | * Called from qla_target_template->free_mcmd(), and will call | |
380 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
381 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
382 | */ | |
383 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
384 | { | |
385 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
386 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
387 | } | |
388 | ||
389 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
390 | { | |
391 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
392 | ||
e07f8f65 SK |
393 | cmd->cmd_in_wq = 0; |
394 | ||
395 | WARN_ON(cmd->cmd_flags & BIT_16); | |
396 | ||
397 | cmd->cmd_flags |= BIT_16; | |
75f8c1f6 NB |
398 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
399 | } | |
400 | ||
401 | /* | |
402 | * Called from qla_target_template->free_cmd(), and will call | |
403 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
404 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
405 | */ | |
406 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
407 | { | |
e07f8f65 | 408 | cmd->cmd_in_wq = 1; |
75f8c1f6 NB |
409 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
410 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
411 | } | |
412 | ||
413 | /* | |
414 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
415 | */ | |
416 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
417 | { | |
e07f8f65 SK |
418 | struct qla_tgt_cmd *cmd; |
419 | ||
420 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
421 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
422 | cmd->cmd_flags |= BIT_14; | |
423 | } | |
424 | ||
75f8c1f6 NB |
425 | return target_put_sess_cmd(se_cmd->se_sess, se_cmd); |
426 | } | |
427 | ||
428 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
429 | * fabric descriptor @se_cmd command to release | |
430 | */ | |
431 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
432 | { | |
433 | struct qla_tgt_cmd *cmd; | |
434 | ||
435 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
436 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
437 | struct qla_tgt_mgmt_cmd, se_cmd); | |
438 | qlt_free_mcmd(mcmd); | |
439 | return; | |
440 | } | |
441 | ||
442 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
443 | qlt_free_cmd(cmd); | |
444 | } | |
445 | ||
446 | static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess) | |
447 | { | |
448 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
449 | struct scsi_qla_host *vha; | |
450 | unsigned long flags; | |
451 | ||
452 | BUG_ON(!sess); | |
453 | vha = sess->vha; | |
454 | ||
455 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
1c7b13fe | 456 | target_sess_cmd_list_set_waiting(se_sess); |
75f8c1f6 NB |
457 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
458 | ||
459 | return 1; | |
460 | } | |
461 | ||
462 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) | |
463 | { | |
464 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
465 | struct scsi_qla_host *vha; | |
466 | unsigned long flags; | |
467 | ||
468 | BUG_ON(!sess); | |
469 | vha = sess->vha; | |
470 | ||
471 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
472 | qlt_unreg_sess(sess); | |
473 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
474 | } | |
475 | ||
476 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
477 | { | |
478 | return 0; | |
479 | } | |
480 | ||
75f8c1f6 NB |
481 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
482 | { | |
483 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
484 | struct qla_tgt_cmd, se_cmd); | |
485 | ||
486 | cmd->bufflen = se_cmd->data_length; | |
b3faa2e8 | 487 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
488 | |
489 | cmd->sg_cnt = se_cmd->t_data_nents; | |
490 | cmd->sg = se_cmd->t_data_sg; | |
491 | ||
f83adb61 QT |
492 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
493 | cmd->prot_sg = se_cmd->t_prot_sg; | |
494 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
495 | se_cmd->pi_err = 0; | |
496 | ||
75f8c1f6 NB |
497 | /* |
498 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
499 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
500 | */ | |
501 | return qlt_rdy_to_xfer(cmd); | |
502 | } | |
503 | ||
504 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
505 | { | |
506 | unsigned long flags; | |
507 | /* | |
508 | * Check for WRITE_PENDING status to determine if we need to wait for | |
509 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
510 | */ | |
511 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
512 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
513 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
514 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
515 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
516 | 3000); | |
517 | return 0; | |
518 | } | |
519 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
525 | { | |
526 | return; | |
527 | } | |
528 | ||
529 | static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd) | |
530 | { | |
dd9c4eff HM |
531 | struct qla_tgt_cmd *cmd; |
532 | ||
533 | /* check for task mgmt cmd */ | |
534 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) | |
535 | return 0xffffffff; | |
536 | ||
537 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
75f8c1f6 NB |
538 | |
539 | return cmd->tag; | |
540 | } | |
541 | ||
542 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) | |
543 | { | |
544 | return 0; | |
545 | } | |
546 | ||
547 | /* | |
548 | * Called from process context in qla_target.c:qlt_do_work() code | |
549 | */ | |
550 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
551 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
552 | int data_dir, int bidi) | |
553 | { | |
554 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
555 | struct se_session *se_sess; | |
556 | struct qla_tgt_sess *sess; | |
557 | int flags = TARGET_SCF_ACK_KREF; | |
558 | ||
559 | if (bidi) | |
560 | flags |= TARGET_SCF_BIDI_OP; | |
561 | ||
562 | sess = cmd->sess; | |
563 | if (!sess) { | |
564 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); | |
565 | return -EINVAL; | |
566 | } | |
567 | ||
568 | se_sess = sess->se_sess; | |
569 | if (!se_sess) { | |
570 | pr_err("Unable to locate active struct se_session\n"); | |
571 | return -EINVAL; | |
572 | } | |
573 | ||
d6dfc868 | 574 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
575 | cmd->unpacked_lun, data_length, fcp_task_attr, |
576 | data_dir, flags); | |
75f8c1f6 NB |
577 | } |
578 | ||
43381ce8 | 579 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
580 | { |
581 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
75f8c1f6 | 582 | |
75f8c1f6 NB |
583 | /* |
584 | * Ensure that the complete FCP WRITE payload has been received. | |
585 | * Otherwise return an exception via CHECK_CONDITION status. | |
586 | */ | |
e07f8f65 SK |
587 | cmd->cmd_in_wq = 0; |
588 | cmd->cmd_flags |= BIT_11; | |
75f8c1f6 NB |
589 | if (!cmd->write_data_transferred) { |
590 | /* | |
591 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
592 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
593 | */ | |
43381ce8 CH |
594 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
595 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
596 | return; | |
75f8c1f6 | 597 | } |
75f8c1f6 | 598 | |
f83adb61 QT |
599 | if (cmd->se_cmd.pi_err) |
600 | transport_generic_request_failure(&cmd->se_cmd, | |
601 | cmd->se_cmd.pi_err); | |
602 | else | |
603 | transport_generic_request_failure(&cmd->se_cmd, | |
604 | TCM_CHECK_CONDITION_ABORT_CMD); | |
605 | ||
43381ce8 | 606 | return; |
75f8c1f6 | 607 | } |
43381ce8 CH |
608 | |
609 | return target_execute_cmd(&cmd->se_cmd); | |
610 | } | |
611 | ||
612 | /* | |
613 | * Called from qla_target.c:qlt_do_ctio_completion() | |
614 | */ | |
615 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
616 | { | |
e07f8f65 SK |
617 | cmd->cmd_flags |= BIT_10; |
618 | cmd->cmd_in_wq = 1; | |
43381ce8 CH |
619 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
620 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
75f8c1f6 NB |
621 | } |
622 | ||
f83adb61 QT |
623 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
624 | { | |
625 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
626 | ||
627 | /* take an extra kref to prevent cmd free too early. | |
628 | * need to wait for SCSI status/check condition to | |
629 | * finish responding generate by transport_generic_request_failure. | |
630 | */ | |
631 | kref_get(&cmd->se_cmd.cmd_kref); | |
632 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); | |
633 | } | |
634 | ||
635 | /* | |
636 | * Called from qla_target.c:qlt_do_ctio_completion() | |
637 | */ | |
638 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) | |
639 | { | |
640 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); | |
641 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
642 | } | |
643 | ||
75f8c1f6 NB |
644 | /* |
645 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
646 | */ | |
9389c3c9 RD |
647 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
648 | uint8_t tmr_func, uint32_t tag) | |
75f8c1f6 NB |
649 | { |
650 | struct qla_tgt_sess *sess = mcmd->sess; | |
651 | struct se_cmd *se_cmd = &mcmd->se_cmd; | |
652 | ||
653 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
654 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); | |
655 | } | |
656 | ||
657 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
658 | { | |
659 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
660 | struct qla_tgt_cmd, se_cmd); | |
661 | ||
e07f8f65 | 662 | cmd->cmd_flags |= BIT_4; |
75f8c1f6 | 663 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 664 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
665 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
666 | ||
667 | cmd->sg_cnt = se_cmd->t_data_nents; | |
668 | cmd->sg = se_cmd->t_data_sg; | |
669 | cmd->offset = 0; | |
e07f8f65 | 670 | cmd->cmd_flags |= BIT_3; |
75f8c1f6 | 671 | |
f83adb61 QT |
672 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
673 | cmd->prot_sg = se_cmd->t_prot_sg; | |
674 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
675 | se_cmd->pi_err = 0; | |
676 | ||
75f8c1f6 NB |
677 | /* |
678 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
679 | */ | |
680 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
681 | se_cmd->scsi_status); | |
682 | } | |
683 | ||
684 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
685 | { | |
686 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
687 | struct qla_tgt_cmd, se_cmd); | |
688 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
689 | ||
690 | cmd->bufflen = se_cmd->data_length; | |
691 | cmd->sg = NULL; | |
692 | cmd->sg_cnt = 0; | |
693 | cmd->offset = 0; | |
b3faa2e8 | 694 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 | 695 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
e07f8f65 SK |
696 | if (cmd->cmd_flags & BIT_5) { |
697 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); | |
698 | dump_stack(); | |
699 | } | |
700 | cmd->cmd_flags |= BIT_5; | |
75f8c1f6 NB |
701 | |
702 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
703 | /* | |
704 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
705 | * for qla_tgt_xmit_response LLD code | |
706 | */ | |
b5aff3d2 RD |
707 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
708 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
709 | se_cmd->residual_count = 0; | |
710 | } | |
75f8c1f6 | 711 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 712 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
713 | |
714 | cmd->bufflen = 0; | |
715 | } | |
716 | /* | |
717 | * Now queue status response to qla2xxx LLD code and response ring | |
718 | */ | |
719 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
720 | } | |
721 | ||
b79fafac | 722 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
723 | { |
724 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
725 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
726 | struct qla_tgt_mgmt_cmd, se_cmd); | |
727 | ||
728 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
729 | mcmd, se_tmr->function, se_tmr->response); | |
730 | /* | |
731 | * Do translation between TCM TM response codes and | |
732 | * QLA2xxx FC TM response codes. | |
733 | */ | |
734 | switch (se_tmr->response) { | |
735 | case TMR_FUNCTION_COMPLETE: | |
736 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
737 | break; | |
738 | case TMR_TASK_DOES_NOT_EXIST: | |
739 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
740 | break; | |
741 | case TMR_FUNCTION_REJECTED: | |
742 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
743 | break; | |
744 | case TMR_LUN_DOES_NOT_EXIST: | |
745 | default: | |
746 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
747 | break; | |
748 | } | |
749 | /* | |
750 | * Queue the TM response to QLA2xxx LLD to build a | |
751 | * CTIO response packet. | |
752 | */ | |
753 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
754 | } |
755 | ||
131e6abc NB |
756 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
757 | { | |
758 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
759 | struct qla_tgt_cmd, se_cmd); | |
760 | struct scsi_qla_host *vha = cmd->vha; | |
761 | struct qla_hw_data *ha = vha->hw; | |
762 | ||
763 | if (!cmd->sg_mapped) | |
764 | return; | |
765 | ||
766 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); | |
767 | cmd->sg_mapped = 0; | |
768 | } | |
769 | ||
f2d5d9b9 NB |
770 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
771 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); | |
75f8c1f6 NB |
772 | /* |
773 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
774 | */ | |
775 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) | |
776 | { | |
777 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
778 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
779 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
780 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
781 | struct tcm_qla2xxx_lport, lport_wwn); | |
782 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
783 | struct tcm_qla2xxx_nacl, se_node_acl); | |
784 | void *node; | |
785 | ||
786 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
787 | ||
788 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
789 | if (WARN_ON(node && (node != se_nacl))) { |
790 | /* | |
791 | * The nacl no longer matches what we think it should be. | |
792 | * Most likely a new dynamic acl has been added while | |
793 | * someone dropped the hardware lock. It clearly is a | |
794 | * bug elsewhere, but this bit can't make things worse. | |
795 | */ | |
796 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
797 | node, GFP_ATOMIC); | |
798 | } | |
75f8c1f6 NB |
799 | |
800 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
801 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
802 | /* |
803 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
804 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
805 | * | |
806 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
807 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
808 | * I/O to complete, to avoid a race between session shutdown execution | |
809 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
810 | */ | |
811 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
812 | } |
813 | ||
aaf68b75 JE |
814 | static void tcm_qla2xxx_release_session(struct kref *kref) |
815 | { | |
816 | struct se_session *se_sess = container_of(kref, | |
817 | struct se_session, sess_kref); | |
818 | ||
819 | qlt_unreg_sess(se_sess->fabric_sess_ptr); | |
820 | } | |
821 | ||
822 | static void tcm_qla2xxx_put_session(struct se_session *se_sess) | |
823 | { | |
824 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
825 | struct qla_hw_data *ha = sess->vha->hw; | |
826 | unsigned long flags; | |
827 | ||
828 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
829 | kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session); | |
830 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
831 | } | |
832 | ||
75f8c1f6 NB |
833 | static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess) |
834 | { | |
0e8cd71c SK |
835 | if (!sess) |
836 | return; | |
837 | ||
08234e3a JE |
838 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
839 | kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session); | |
75f8c1f6 NB |
840 | } |
841 | ||
842 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) | |
843 | { | |
08234e3a JE |
844 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
845 | target_sess_cmd_list_set_waiting(sess->se_sess); | |
75f8c1f6 NB |
846 | } |
847 | ||
848 | static struct se_node_acl *tcm_qla2xxx_make_nodeacl( | |
849 | struct se_portal_group *se_tpg, | |
850 | struct config_group *group, | |
851 | const char *name) | |
852 | { | |
75f8c1f6 NB |
853 | struct se_node_acl *se_nacl, *se_nacl_new; |
854 | struct tcm_qla2xxx_nacl *nacl; | |
855 | u64 wwnn; | |
856 | u32 qla2xxx_nexus_depth; | |
75f8c1f6 NB |
857 | |
858 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
859 | return ERR_PTR(-EINVAL); | |
860 | ||
861 | se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg); | |
862 | if (!se_nacl_new) | |
863 | return ERR_PTR(-ENOMEM); | |
864 | /* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */ | |
865 | qla2xxx_nexus_depth = 1; | |
866 | ||
867 | /* | |
868 | * se_nacl_new may be released by core_tpg_add_initiator_node_acl() | |
869 | * when converting a NodeACL from demo mode -> explict | |
870 | */ | |
871 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, | |
872 | name, qla2xxx_nexus_depth); | |
873 | if (IS_ERR(se_nacl)) { | |
874 | tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new); | |
875 | return se_nacl; | |
876 | } | |
877 | /* | |
878 | * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN | |
879 | */ | |
880 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
881 | nacl->nport_wwnn = wwnn; | |
882 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 NB |
883 | |
884 | return se_nacl; | |
885 | } | |
886 | ||
887 | static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl) | |
888 | { | |
889 | struct se_portal_group *se_tpg = se_acl->se_tpg; | |
890 | struct tcm_qla2xxx_nacl *nacl = container_of(se_acl, | |
891 | struct tcm_qla2xxx_nacl, se_node_acl); | |
892 | ||
893 | core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1); | |
894 | kfree(nacl); | |
895 | } | |
896 | ||
897 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
898 | ||
899 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
900 | \ | |
901 | static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ | |
902 | struct se_portal_group *se_tpg, \ | |
903 | char *page) \ | |
904 | { \ | |
905 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
906 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
907 | \ | |
a309f489 | 908 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
909 | } \ |
910 | \ | |
911 | static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ | |
912 | struct se_portal_group *se_tpg, \ | |
913 | const char *page, \ | |
914 | size_t count) \ | |
915 | { \ | |
916 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
917 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
918 | unsigned long val; \ | |
919 | int ret; \ | |
920 | \ | |
921 | ret = kstrtoul(page, 0, &val); \ | |
922 | if (ret < 0) { \ | |
923 | pr_err("kstrtoul() failed with" \ | |
924 | " ret: %d\n", ret); \ | |
925 | return -EINVAL; \ | |
926 | } \ | |
927 | ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ | |
928 | \ | |
929 | return (!ret) ? count : -EINVAL; \ | |
930 | } | |
931 | ||
932 | #define DEF_QLA_TPG_ATTR_BOOL(_name) \ | |
933 | \ | |
934 | static int tcm_qla2xxx_set_attrib_##_name( \ | |
935 | struct tcm_qla2xxx_tpg *tpg, \ | |
936 | unsigned long val) \ | |
937 | { \ | |
938 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ | |
939 | \ | |
940 | if ((val != 0) && (val != 1)) { \ | |
941 | pr_err("Illegal boolean value %lu\n", val); \ | |
942 | return -EINVAL; \ | |
943 | } \ | |
944 | \ | |
945 | a->_name = val; \ | |
946 | return 0; \ | |
947 | } | |
948 | ||
949 | #define QLA_TPG_ATTR(_name, _mode) \ | |
950 | TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); | |
951 | ||
952 | /* | |
953 | * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls | |
954 | */ | |
955 | DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); | |
956 | DEF_QLA_TPG_ATTRIB(generate_node_acls); | |
957 | QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | |
958 | ||
959 | /* | |
960 | Define tcm_qla2xxx_attrib_s_cache_dynamic_acls | |
961 | */ | |
962 | DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); | |
963 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); | |
964 | QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | |
965 | ||
966 | /* | |
967 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect | |
968 | */ | |
969 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); | |
970 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); | |
971 | QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | |
972 | ||
973 | /* | |
974 | * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect | |
975 | */ | |
976 | DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); | |
977 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); | |
978 | QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | |
979 | ||
de04a8aa AG |
980 | /* |
981 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only | |
982 | */ | |
983 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); | |
984 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); | |
985 | QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); | |
986 | ||
75f8c1f6 NB |
987 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
988 | &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, | |
989 | &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, | |
990 | &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, | |
991 | &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, | |
de04a8aa | 992 | &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, |
75f8c1f6 NB |
993 | NULL, |
994 | }; | |
995 | ||
996 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
997 | ||
998 | static ssize_t tcm_qla2xxx_tpg_show_enable( | |
999 | struct se_portal_group *se_tpg, | |
1000 | char *page) | |
1001 | { | |
1002 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1003 | struct tcm_qla2xxx_tpg, se_tpg); | |
1004 | ||
1005 | return snprintf(page, PAGE_SIZE, "%d\n", | |
1006 | atomic_read(&tpg->lport_tpg_enabled)); | |
1007 | } | |
1008 | ||
7474f52a NB |
1009 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
1010 | { | |
1011 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
1012 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
1013 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
1014 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
1015 | ||
1016 | if (!configfs_depend_item(se_tpg->se_tpg_tfo->tf_subsys, | |
1017 | &se_tpg->tpg_group.cg_item)) { | |
1018 | atomic_set(&base_tpg->lport_tpg_enabled, 1); | |
1019 | qlt_enable_vha(base_vha); | |
1020 | } | |
1021 | complete(&base_tpg->tpg_base_comp); | |
1022 | } | |
1023 | ||
1024 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
1025 | { | |
1026 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
1027 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
1028 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
1029 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
1030 | ||
1031 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
1032 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
1033 | configfs_undepend_item(se_tpg->se_tpg_tfo->tf_subsys, | |
1034 | &se_tpg->tpg_group.cg_item); | |
1035 | } | |
1036 | complete(&base_tpg->tpg_base_comp); | |
1037 | } | |
1038 | ||
75f8c1f6 NB |
1039 | static ssize_t tcm_qla2xxx_tpg_store_enable( |
1040 | struct se_portal_group *se_tpg, | |
1041 | const char *page, | |
1042 | size_t count) | |
1043 | { | |
75f8c1f6 NB |
1044 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
1045 | struct tcm_qla2xxx_tpg, se_tpg); | |
1046 | unsigned long op; | |
1047 | int rc; | |
1048 | ||
1049 | rc = kstrtoul(page, 0, &op); | |
1050 | if (rc < 0) { | |
1051 | pr_err("kstrtoul() returned %d\n", rc); | |
1052 | return -EINVAL; | |
1053 | } | |
1054 | if ((op != 1) && (op != 0)) { | |
1055 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1056 | return -EINVAL; | |
1057 | } | |
75f8c1f6 | 1058 | if (op) { |
7474f52a NB |
1059 | if (atomic_read(&tpg->lport_tpg_enabled)) |
1060 | return -EEXIST; | |
1061 | ||
1062 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 1063 | } else { |
7474f52a NB |
1064 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
1065 | return count; | |
1066 | ||
1067 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 1068 | } |
7474f52a NB |
1069 | init_completion(&tpg->tpg_base_comp); |
1070 | schedule_work(&tpg->tpg_base_work); | |
1071 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 1072 | |
7474f52a NB |
1073 | if (op) { |
1074 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1075 | return -ENODEV; | |
1076 | } else { | |
1077 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1078 | return -EPERM; | |
1079 | } | |
75f8c1f6 NB |
1080 | return count; |
1081 | } | |
1082 | ||
1083 | TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); | |
1084 | ||
1085 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { | |
1086 | &tcm_qla2xxx_tpg_enable.attr, | |
1087 | NULL, | |
1088 | }; | |
1089 | ||
1090 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
1091 | struct se_wwn *wwn, | |
1092 | struct config_group *group, | |
1093 | const char *name) | |
1094 | { | |
1095 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1096 | struct tcm_qla2xxx_lport, lport_wwn); | |
1097 | struct tcm_qla2xxx_tpg *tpg; | |
1098 | unsigned long tpgt; | |
1099 | int ret; | |
1100 | ||
1101 | if (strstr(name, "tpgt_") != name) | |
1102 | return ERR_PTR(-EINVAL); | |
1103 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1104 | return ERR_PTR(-EINVAL); | |
1105 | ||
0e8cd71c | 1106 | if ((tpgt != 1)) { |
75f8c1f6 NB |
1107 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
1108 | return ERR_PTR(-ENOSYS); | |
1109 | } | |
1110 | ||
1111 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1112 | if (!tpg) { | |
1113 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1114 | return ERR_PTR(-ENOMEM); | |
1115 | } | |
1116 | tpg->lport = lport; | |
1117 | tpg->lport_tpgt = tpgt; | |
1118 | /* | |
1119 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1120 | * NodeACLs | |
1121 | */ | |
a309f489 AG |
1122 | tpg->tpg_attrib.generate_node_acls = 1; |
1123 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1124 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1125 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
75f8c1f6 NB |
1126 | |
1127 | ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn, | |
1128 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); | |
1129 | if (ret < 0) { | |
1130 | kfree(tpg); | |
1131 | return NULL; | |
1132 | } | |
0e8cd71c SK |
1133 | |
1134 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1135 | |
1136 | return &tpg->se_tpg; | |
1137 | } | |
1138 | ||
1139 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1140 | { | |
1141 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1142 | struct tcm_qla2xxx_tpg, se_tpg); | |
1143 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1144 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1145 | /* |
1146 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1147 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1148 | */ | |
0e8cd71c SK |
1149 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1150 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1151 | |
1152 | core_tpg_deregister(se_tpg); | |
1153 | /* | |
1154 | * Clear local TPG=1 pointer for non NPIV mode. | |
1155 | */ | |
394d62ba | 1156 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1157 | kfree(tpg); |
1158 | } | |
1159 | ||
394d62ba NB |
1160 | static ssize_t tcm_qla2xxx_npiv_tpg_show_enable( |
1161 | struct se_portal_group *se_tpg, | |
1162 | char *page) | |
1163 | { | |
1164 | return tcm_qla2xxx_tpg_show_enable(se_tpg, page); | |
1165 | } | |
1166 | ||
1167 | static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( | |
1168 | struct se_portal_group *se_tpg, | |
1169 | const char *page, | |
1170 | size_t count) | |
1171 | { | |
1172 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
1173 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1174 | struct tcm_qla2xxx_lport, lport_wwn); | |
1175 | struct scsi_qla_host *vha = lport->qla_vha; | |
1176 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1177 | struct tcm_qla2xxx_tpg, se_tpg); | |
1178 | unsigned long op; | |
1179 | int rc; | |
1180 | ||
1181 | rc = kstrtoul(page, 0, &op); | |
1182 | if (rc < 0) { | |
1183 | pr_err("kstrtoul() returned %d\n", rc); | |
1184 | return -EINVAL; | |
1185 | } | |
1186 | if ((op != 1) && (op != 0)) { | |
1187 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1188 | return -EINVAL; | |
1189 | } | |
1190 | if (op) { | |
1191 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1192 | return -EEXIST; | |
1193 | ||
1194 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1195 | qlt_enable_vha(vha); | |
1196 | } else { | |
1197 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1198 | return count; | |
1199 | ||
1200 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1201 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1202 | } | |
1203 | ||
1204 | return count; | |
1205 | } | |
1206 | ||
1207 | TF_TPG_BASE_ATTR(tcm_qla2xxx_npiv, enable, S_IRUGO | S_IWUSR); | |
1208 | ||
1209 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
1210 | &tcm_qla2xxx_npiv_tpg_enable.attr, | |
1211 | NULL, | |
1212 | }; | |
1213 | ||
75f8c1f6 NB |
1214 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1215 | struct se_wwn *wwn, | |
1216 | struct config_group *group, | |
1217 | const char *name) | |
1218 | { | |
1219 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1220 | struct tcm_qla2xxx_lport, lport_wwn); | |
1221 | struct tcm_qla2xxx_tpg *tpg; | |
1222 | unsigned long tpgt; | |
1223 | int ret; | |
1224 | ||
1225 | if (strstr(name, "tpgt_") != name) | |
1226 | return ERR_PTR(-EINVAL); | |
1227 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1228 | return ERR_PTR(-EINVAL); | |
1229 | ||
1230 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1231 | if (!tpg) { | |
1232 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1233 | return ERR_PTR(-ENOMEM); | |
1234 | } | |
1235 | tpg->lport = lport; | |
1236 | tpg->lport_tpgt = tpgt; | |
1237 | ||
0e8cd71c SK |
1238 | /* |
1239 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1240 | * NodeACLs | |
1241 | */ | |
1242 | tpg->tpg_attrib.generate_node_acls = 1; | |
1243 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1244 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1245 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1246 | ||
75f8c1f6 NB |
1247 | ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops, wwn, |
1248 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); | |
1249 | if (ret < 0) { | |
1250 | kfree(tpg); | |
1251 | return NULL; | |
1252 | } | |
0e8cd71c | 1253 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1254 | return &tpg->se_tpg; |
1255 | } | |
1256 | ||
1257 | /* | |
1258 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1259 | */ | |
1260 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( | |
1261 | scsi_qla_host_t *vha, | |
1262 | const uint8_t *s_id) | |
1263 | { | |
75f8c1f6 NB |
1264 | struct tcm_qla2xxx_lport *lport; |
1265 | struct se_node_acl *se_nacl; | |
1266 | struct tcm_qla2xxx_nacl *nacl; | |
1267 | u32 key; | |
1268 | ||
0e8cd71c | 1269 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1270 | if (!lport) { |
1271 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1272 | dump_stack(); | |
1273 | return NULL; | |
1274 | } | |
1275 | ||
1276 | key = (((unsigned long)s_id[0] << 16) | | |
1277 | ((unsigned long)s_id[1] << 8) | | |
1278 | (unsigned long)s_id[2]); | |
1279 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); | |
1280 | ||
1281 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1282 | if (!se_nacl) { | |
1283 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1284 | return NULL; | |
1285 | } | |
1286 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1287 | se_nacl, se_nacl->initiatorname); | |
1288 | ||
1289 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1290 | if (!nacl->qla_tgt_sess) { | |
1291 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1292 | return NULL; | |
1293 | } | |
1294 | ||
1295 | return nacl->qla_tgt_sess; | |
1296 | } | |
1297 | ||
1298 | /* | |
1299 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1300 | */ | |
1301 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1302 | struct tcm_qla2xxx_lport *lport, | |
1303 | struct se_node_acl *new_se_nacl, | |
1304 | struct tcm_qla2xxx_nacl *nacl, | |
1305 | struct se_session *se_sess, | |
1306 | struct qla_tgt_sess *qla_tgt_sess, | |
1307 | uint8_t *s_id) | |
1308 | { | |
1309 | u32 key; | |
1310 | void *slot; | |
1311 | int rc; | |
1312 | ||
1313 | key = (((unsigned long)s_id[0] << 16) | | |
1314 | ((unsigned long)s_id[1] << 8) | | |
1315 | (unsigned long)s_id[2]); | |
1316 | pr_debug("set_sess_by_s_id: %06x\n", key); | |
1317 | ||
1318 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1319 | if (!slot) { | |
1320 | if (new_se_nacl) { | |
1321 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1322 | nacl->nport_id = key; | |
1323 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1324 | new_se_nacl, GFP_ATOMIC); | |
1325 | if (rc) | |
1326 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1327 | (int)key); | |
1328 | } else { | |
1329 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1330 | } | |
1331 | ||
1332 | qla_tgt_sess->se_sess = se_sess; | |
1333 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1334 | return; | |
1335 | } | |
1336 | ||
1337 | if (nacl->qla_tgt_sess) { | |
1338 | if (new_se_nacl == NULL) { | |
1339 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1340 | btree_remove32(&lport->lport_fcport_map, key); | |
1341 | nacl->qla_tgt_sess = NULL; | |
1342 | return; | |
1343 | } | |
1344 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1345 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1346 | qla_tgt_sess->se_sess = se_sess; | |
1347 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1348 | return; | |
1349 | } | |
1350 | ||
1351 | if (new_se_nacl == NULL) { | |
1352 | pr_debug("Clearing existing fc_port entry\n"); | |
1353 | btree_remove32(&lport->lport_fcport_map, key); | |
1354 | return; | |
1355 | } | |
1356 | ||
1357 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); | |
1358 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1359 | qla_tgt_sess->se_sess = se_sess; | |
1360 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1361 | ||
1362 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", | |
1363 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1364 | } | |
1365 | ||
1366 | /* | |
1367 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1368 | */ | |
1369 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( | |
1370 | scsi_qla_host_t *vha, | |
1371 | const uint16_t loop_id) | |
1372 | { | |
75f8c1f6 NB |
1373 | struct tcm_qla2xxx_lport *lport; |
1374 | struct se_node_acl *se_nacl; | |
1375 | struct tcm_qla2xxx_nacl *nacl; | |
1376 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1377 | ||
0e8cd71c | 1378 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1379 | if (!lport) { |
1380 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1381 | dump_stack(); | |
1382 | return NULL; | |
1383 | } | |
1384 | ||
1385 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1386 | ||
1387 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1388 | se_nacl = fc_loopid->se_nacl; | |
1389 | if (!se_nacl) { | |
1390 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1391 | loop_id); | |
1392 | return NULL; | |
1393 | } | |
1394 | ||
1395 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1396 | ||
1397 | if (!nacl->qla_tgt_sess) { | |
1398 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1399 | return NULL; | |
1400 | } | |
1401 | ||
1402 | return nacl->qla_tgt_sess; | |
1403 | } | |
1404 | ||
1405 | /* | |
1406 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1407 | */ | |
1408 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1409 | struct tcm_qla2xxx_lport *lport, | |
1410 | struct se_node_acl *new_se_nacl, | |
1411 | struct tcm_qla2xxx_nacl *nacl, | |
1412 | struct se_session *se_sess, | |
1413 | struct qla_tgt_sess *qla_tgt_sess, | |
1414 | uint16_t loop_id) | |
1415 | { | |
1416 | struct se_node_acl *saved_nacl; | |
1417 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1418 | ||
1419 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1420 | ||
1421 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1422 | lport->lport_loopid_map)[loop_id]; | |
1423 | ||
1424 | saved_nacl = fc_loopid->se_nacl; | |
1425 | if (!saved_nacl) { | |
1426 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1427 | fc_loopid->se_nacl = new_se_nacl; | |
1428 | if (qla_tgt_sess->se_sess != se_sess) | |
1429 | qla_tgt_sess->se_sess = se_sess; | |
1430 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1431 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | if (nacl->qla_tgt_sess) { | |
1436 | if (new_se_nacl == NULL) { | |
1437 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1438 | fc_loopid->se_nacl = NULL; | |
1439 | nacl->qla_tgt_sess = NULL; | |
1440 | return; | |
1441 | } | |
1442 | ||
1443 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1444 | fc_loopid->se_nacl = new_se_nacl; | |
1445 | if (qla_tgt_sess->se_sess != se_sess) | |
1446 | qla_tgt_sess->se_sess = se_sess; | |
1447 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1448 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1449 | return; | |
1450 | } | |
1451 | ||
1452 | if (new_se_nacl == NULL) { | |
1453 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1454 | fc_loopid->se_nacl = NULL; | |
1455 | return; | |
1456 | } | |
1457 | ||
1458 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); | |
1459 | fc_loopid->se_nacl = new_se_nacl; | |
1460 | if (qla_tgt_sess->se_sess != se_sess) | |
1461 | qla_tgt_sess->se_sess = se_sess; | |
1462 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1463 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1464 | ||
1465 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", | |
1466 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1467 | } | |
1468 | ||
f2d5d9b9 NB |
1469 | /* |
1470 | * Should always be called with qla_hw_data->hardware_lock held. | |
1471 | */ | |
1472 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
1473 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) | |
1474 | { | |
1475 | struct se_session *se_sess = sess->se_sess; | |
1476 | unsigned char be_sid[3]; | |
1477 | ||
1478 | be_sid[0] = sess->s_id.b.domain; | |
1479 | be_sid[1] = sess->s_id.b.area; | |
1480 | be_sid[2] = sess->s_id.b.al_pa; | |
1481 | ||
1482 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1483 | sess, be_sid); | |
1484 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1485 | sess, sess->loop_id); | |
1486 | } | |
1487 | ||
75f8c1f6 NB |
1488 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
1489 | { | |
1490 | struct qla_tgt *tgt = sess->tgt; | |
1491 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1492 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 NB |
1493 | struct se_session *se_sess; |
1494 | struct se_node_acl *se_nacl; | |
1495 | struct tcm_qla2xxx_lport *lport; | |
1496 | struct tcm_qla2xxx_nacl *nacl; | |
75f8c1f6 NB |
1497 | |
1498 | BUG_ON(in_interrupt()); | |
1499 | ||
1500 | se_sess = sess->se_sess; | |
1501 | if (!se_sess) { | |
1502 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); | |
1503 | dump_stack(); | |
1504 | return; | |
1505 | } | |
1506 | se_nacl = se_sess->se_node_acl; | |
1507 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1508 | ||
0e8cd71c | 1509 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1510 | if (!lport) { |
1511 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1512 | dump_stack(); | |
1513 | return; | |
1514 | } | |
be646c2d | 1515 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1516 | |
1517 | transport_deregister_session_configfs(sess->se_sess); | |
1518 | transport_deregister_session(sess->se_sess); | |
1519 | } | |
1520 | ||
1521 | /* | |
1522 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1523 | * to locate struct se_node_acl | |
1524 | */ | |
1525 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1526 | scsi_qla_host_t *vha, | |
1527 | unsigned char *fc_wwpn, | |
1528 | void *qla_tgt_sess, | |
1529 | uint8_t *s_id, | |
1530 | uint16_t loop_id) | |
1531 | { | |
1532 | struct qla_hw_data *ha = vha->hw; | |
1533 | struct tcm_qla2xxx_lport *lport; | |
1534 | struct tcm_qla2xxx_tpg *tpg; | |
1535 | struct tcm_qla2xxx_nacl *nacl; | |
1536 | struct se_portal_group *se_tpg; | |
1537 | struct se_node_acl *se_nacl; | |
1538 | struct se_session *se_sess; | |
1539 | struct qla_tgt_sess *sess = qla_tgt_sess; | |
1540 | unsigned char port_name[36]; | |
1541 | unsigned long flags; | |
51a07f84 NB |
1542 | int num_tags = (ha->fw_xcb_count) ? ha->fw_xcb_count : |
1543 | TCM_QLA2XXX_DEFAULT_TAGS; | |
75f8c1f6 | 1544 | |
0e8cd71c | 1545 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1546 | if (!lport) { |
1547 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1548 | dump_stack(); | |
1549 | return -EINVAL; | |
1550 | } | |
1551 | /* | |
1552 | * Locate the TPG=1 reference.. | |
1553 | */ | |
1554 | tpg = lport->tpg_1; | |
1555 | if (!tpg) { | |
1556 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1557 | return -EINVAL; | |
1558 | } | |
1559 | se_tpg = &tpg->se_tpg; | |
1560 | ||
51a07f84 NB |
1561 | se_sess = transport_init_session_tags(num_tags, |
1562 | sizeof(struct qla_tgt_cmd), | |
1563 | TARGET_PROT_NORMAL); | |
75f8c1f6 NB |
1564 | if (IS_ERR(se_sess)) { |
1565 | pr_err("Unable to initialize struct se_session\n"); | |
1566 | return PTR_ERR(se_sess); | |
1567 | } | |
1568 | /* | |
1569 | * Format the FCP Initiator port_name into colon seperated values to | |
1570 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1571 | */ | |
1572 | memset(&port_name, 0, 36); | |
1573 | snprintf(port_name, 36, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", | |
1574 | fc_wwpn[0], fc_wwpn[1], fc_wwpn[2], fc_wwpn[3], fc_wwpn[4], | |
1575 | fc_wwpn[5], fc_wwpn[6], fc_wwpn[7]); | |
1576 | /* | |
1577 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1578 | * via ConfigFS, or via running in TPG demo mode. | |
1579 | */ | |
1580 | se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg, | |
1581 | port_name); | |
1582 | if (!se_sess->se_node_acl) { | |
1583 | transport_free_session(se_sess); | |
1584 | return -EINVAL; | |
1585 | } | |
1586 | se_nacl = se_sess->se_node_acl; | |
1587 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1588 | /* | |
1589 | * And now setup the new se_nacl and session pointers into our HW lport | |
1590 | * mappings for fabric S_ID and LOOP_ID. | |
1591 | */ | |
1592 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1593 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, | |
1594 | qla_tgt_sess, s_id); | |
1595 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess, | |
1596 | qla_tgt_sess, loop_id); | |
1597 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1598 | /* | |
1599 | * Finally register the new FC Nexus with TCM | |
1600 | */ | |
1601 | __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); | |
1602 | ||
1603 | return 0; | |
1604 | } | |
1605 | ||
c8292d1d RD |
1606 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
1607 | uint16_t loop_id, bool conf_compl_supported) | |
1608 | { | |
1609 | struct qla_tgt *tgt = sess->tgt; | |
1610 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1611 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1612 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1613 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1614 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1615 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1616 | u32 key; | |
1617 | ||
1618 | ||
1619 | if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) | |
7b833558 OK |
1620 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1621 | sess, sess->port_name, | |
1622 | sess->loop_id, loop_id, sess->s_id.b.domain, | |
1623 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, | |
1624 | s_id.b.area, s_id.b.al_pa); | |
c8292d1d RD |
1625 | |
1626 | if (sess->loop_id != loop_id) { | |
1627 | /* | |
1628 | * Because we can shuffle loop IDs around and we | |
1629 | * update different sessions non-atomically, we might | |
1630 | * have overwritten this session's old loop ID | |
1631 | * already, and we might end up overwriting some other | |
1632 | * session that will be updated later. So we have to | |
1633 | * be extra careful and we can't warn about those things... | |
1634 | */ | |
1635 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1636 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1637 | ||
1638 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1639 | ||
1640 | sess->loop_id = loop_id; | |
1641 | } | |
1642 | ||
1643 | if (sess->s_id.b24 != s_id.b24) { | |
1644 | key = (((u32) sess->s_id.b.domain << 16) | | |
1645 | ((u32) sess->s_id.b.area << 8) | | |
1646 | ((u32) sess->s_id.b.al_pa)); | |
1647 | ||
1648 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
1649 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, | |
1650 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1651 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1652 | else | |
1653 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
1654 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1655 | ||
1656 | key = (((u32) s_id.b.domain << 16) | | |
1657 | ((u32) s_id.b.area << 8) | | |
1658 | ((u32) s_id.b.al_pa)); | |
1659 | ||
1660 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1661 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1662 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1663 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1664 | } else { | |
1665 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); | |
1666 | } | |
1667 | ||
1668 | sess->s_id = s_id; | |
1669 | nacl->nport_id = key; | |
1670 | } | |
1671 | ||
1672 | sess->conf_compl_supported = conf_compl_supported; | |
1673 | } | |
1674 | ||
75f8c1f6 NB |
1675 | /* |
1676 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1677 | */ | |
1678 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1679 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1680 | .handle_data = tcm_qla2xxx_handle_data, | |
f83adb61 | 1681 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
75f8c1f6 NB |
1682 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
1683 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1684 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1685 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1686 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1687 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1688 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1689 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1690 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
1691 | .put_sess = tcm_qla2xxx_put_sess, | |
1692 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, | |
1693 | }; | |
1694 | ||
1695 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1696 | { | |
1697 | int rc; | |
1698 | ||
1699 | rc = btree_init32(&lport->lport_fcport_map); | |
1700 | if (rc) { | |
1701 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1702 | return rc; | |
1703 | } | |
1704 | ||
1705 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1706 | 65536); | |
1707 | if (!lport->lport_loopid_map) { | |
1708 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1709 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1710 | btree_destroy32(&lport->lport_fcport_map); | |
1711 | return -ENOMEM; | |
1712 | } | |
1713 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1714 | * 65536); | |
1715 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1716 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1717 | return 0; | |
1718 | } | |
1719 | ||
49a47f2c NB |
1720 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1721 | void *target_lport_ptr, | |
1722 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1723 | { |
49a47f2c NB |
1724 | struct qla_hw_data *ha = vha->hw; |
1725 | struct tcm_qla2xxx_lport *lport = | |
1726 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1727 | /* |
49a47f2c | 1728 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1729 | */ |
49a47f2c NB |
1730 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1731 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1732 | lport->qla_vha = vha; |
1733 | ||
1734 | return 0; | |
1735 | } | |
1736 | ||
1737 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1738 | struct target_fabric_configfs *tf, | |
1739 | struct config_group *group, | |
1740 | const char *name) | |
1741 | { | |
1742 | struct tcm_qla2xxx_lport *lport; | |
1743 | u64 wwpn; | |
1744 | int ret = -ENODEV; | |
1745 | ||
1746 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1747 | return ERR_PTR(-EINVAL); | |
1748 | ||
1749 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1750 | if (!lport) { | |
1751 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1752 | return ERR_PTR(-ENOMEM); | |
1753 | } | |
1754 | lport->lport_wwpn = wwpn; | |
1755 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1756 | wwpn); | |
c046aa0f | 1757 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1758 | |
1759 | ret = tcm_qla2xxx_init_lport(lport); | |
1760 | if (ret != 0) | |
1761 | goto out; | |
1762 | ||
49a47f2c NB |
1763 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1764 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1765 | if (ret != 0) |
1766 | goto out_lport; | |
1767 | ||
1768 | return &lport->lport_wwn; | |
1769 | out_lport: | |
1770 | vfree(lport->lport_loopid_map); | |
1771 | btree_destroy32(&lport->lport_fcport_map); | |
1772 | out: | |
1773 | kfree(lport); | |
1774 | return ERR_PTR(ret); | |
1775 | } | |
1776 | ||
1777 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1778 | { | |
1779 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1780 | struct tcm_qla2xxx_lport, lport_wwn); | |
1781 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1782 | struct se_node_acl *node; |
1783 | u32 key = 0; | |
1784 | ||
1785 | /* | |
1786 | * Call into qla2x_target.c LLD logic to complete the | |
1787 | * shutdown of struct qla_tgt after the call to | |
1788 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1789 | */ | |
0e8cd71c SK |
1790 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1791 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1792 | |
1793 | qlt_lport_deregister(vha); | |
1794 | ||
1795 | vfree(lport->lport_loopid_map); | |
1796 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1797 | btree_remove32(&lport->lport_fcport_map, key); | |
1798 | btree_destroy32(&lport->lport_fcport_map); | |
1799 | kfree(lport); | |
1800 | } | |
1801 | ||
49a47f2c NB |
1802 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1803 | void *target_lport_ptr, | |
1804 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1805 | { | |
1806 | struct fc_vport *vport; | |
1807 | struct Scsi_Host *sh = base_vha->host; | |
1808 | struct scsi_qla_host *npiv_vha; | |
1809 | struct tcm_qla2xxx_lport *lport = | |
1810 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1811 | struct tcm_qla2xxx_lport *base_lport = |
1812 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
1813 | struct tcm_qla2xxx_tpg *base_tpg; | |
49a47f2c NB |
1814 | struct fc_vport_identifiers vport_id; |
1815 | ||
1816 | if (!qla_tgt_mode_enabled(base_vha)) { | |
1817 | pr_err("qla2xxx base_vha not enabled for target mode\n"); | |
1818 | return -EPERM; | |
1819 | } | |
1820 | ||
7474f52a NB |
1821 | if (!base_lport || !base_lport->tpg_1 || |
1822 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1823 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1824 | return -EPERM; | |
1825 | } | |
1826 | base_tpg = base_lport->tpg_1; | |
1827 | ||
49a47f2c NB |
1828 | memset(&vport_id, 0, sizeof(vport_id)); |
1829 | vport_id.port_name = npiv_wwpn; | |
1830 | vport_id.node_name = npiv_wwnn; | |
1831 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1832 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1833 | vport_id.disable = false; | |
1834 | ||
1835 | vport = fc_vport_create(sh, 0, &vport_id); | |
1836 | if (!vport) { | |
1837 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1838 | return -ENODEV; | |
1839 | } | |
1840 | /* | |
1841 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1842 | */ | |
1843 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1844 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1845 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1846 | scsi_host_get(npiv_vha->host); |
1847 | return 0; | |
1848 | } | |
1849 | ||
1850 | ||
75f8c1f6 NB |
1851 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1852 | struct target_fabric_configfs *tf, | |
1853 | struct config_group *group, | |
1854 | const char *name) | |
1855 | { | |
1856 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1857 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1858 | char *p, tmp[128]; | |
75f8c1f6 NB |
1859 | int ret; |
1860 | ||
49a47f2c NB |
1861 | snprintf(tmp, 128, "%s", name); |
1862 | ||
1863 | p = strchr(tmp, '@'); | |
1864 | if (!p) { | |
1865 | pr_err("Unable to locate NPIV '@' seperator\n"); | |
1866 | return ERR_PTR(-EINVAL); | |
1867 | } | |
1868 | *p++ = '\0'; | |
1869 | ||
1870 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1871 | return ERR_PTR(-EINVAL); | |
1872 | ||
1873 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1874 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1875 | return ERR_PTR(-EINVAL); |
1876 | ||
1877 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1878 | if (!lport) { | |
1879 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1880 | return ERR_PTR(-ENOMEM); | |
1881 | } | |
1882 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1883 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1884 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1885 | |
0e8cd71c | 1886 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1887 | if (ret != 0) |
1888 | goto out; | |
1889 | ||
49a47f2c NB |
1890 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1891 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1892 | if (ret != 0) |
1893 | goto out_lport; | |
1894 | ||
75f8c1f6 | 1895 | return &lport->lport_wwn; |
0e8cd71c SK |
1896 | out_lport: |
1897 | vfree(lport->lport_loopid_map); | |
1898 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1899 | out: |
1900 | kfree(lport); | |
1901 | return ERR_PTR(ret); | |
1902 | } | |
1903 | ||
1904 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1905 | { | |
1906 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1907 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1908 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1909 | struct qla_hw_data *ha = npiv_vha->hw; | |
1910 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1911 | ||
1912 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1913 | /* |
0e8cd71c | 1914 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1915 | */ |
49a47f2c NB |
1916 | fc_vport_terminate(npiv_vha->fc_vport); |
1917 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1918 | kfree(lport); |
1919 | } | |
1920 | ||
1921 | ||
1922 | static ssize_t tcm_qla2xxx_wwn_show_attr_version( | |
1923 | struct target_fabric_configfs *tf, | |
1924 | char *page) | |
1925 | { | |
1926 | return sprintf(page, | |
1927 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | |
1928 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1929 | utsname()->machine); | |
1930 | } | |
1931 | ||
1932 | TF_WWN_ATTR_RO(tcm_qla2xxx, version); | |
1933 | ||
1934 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
1935 | &tcm_qla2xxx_wwn_version.attr, | |
1936 | NULL, | |
1937 | }; | |
1938 | ||
1939 | static struct target_core_fabric_ops tcm_qla2xxx_ops = { | |
1940 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, | |
1941 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, | |
1942 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, | |
1943 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
1944 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, | |
1945 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, | |
1946 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | |
1947 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | |
1948 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, | |
1949 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1950 | .tpg_check_demo_mode_write_protect = | |
1951 | tcm_qla2xxx_check_demo_write_protect, | |
1952 | .tpg_check_prod_mode_write_protect = | |
1953 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1954 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 NB |
1955 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, |
1956 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, | |
1957 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, | |
75f8c1f6 NB |
1958 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1959 | .release_cmd = tcm_qla2xxx_release_cmd, | |
aaf68b75 | 1960 | .put_session = tcm_qla2xxx_put_session, |
75f8c1f6 NB |
1961 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
1962 | .close_session = tcm_qla2xxx_close_session, | |
1963 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1964 | .sess_get_initiator_sid = NULL, | |
1965 | .write_pending = tcm_qla2xxx_write_pending, | |
1966 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1967 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
1968 | .get_task_tag = tcm_qla2xxx_get_task_tag, | |
1969 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | |
1970 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1971 | .queue_status = tcm_qla2xxx_queue_status, | |
1972 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1973 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1974 | /* |
1975 | * Setup function pointers for generic logic in | |
1976 | * target_core_fabric_configfs.c | |
1977 | */ | |
1978 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1979 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1980 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1981 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
1982 | .fabric_post_link = NULL, | |
1983 | .fabric_pre_unlink = NULL, | |
1984 | .fabric_make_np = NULL, | |
1985 | .fabric_drop_np = NULL, | |
1986 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, | |
1987 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, | |
1988 | }; | |
1989 | ||
1990 | static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { | |
1991 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, | |
1992 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, | |
84197a36 | 1993 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 NB |
1994 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
1995 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, | |
1996 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, | |
1997 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | |
1998 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | |
0e8cd71c SK |
1999 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
2000 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
2001 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
2002 | .tpg_check_prod_mode_write_protect = | |
2003 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 2004 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 NB |
2005 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, |
2006 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, | |
2007 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, | |
0e8cd71c | 2008 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 2009 | .release_cmd = tcm_qla2xxx_release_cmd, |
aaf68b75 | 2010 | .put_session = tcm_qla2xxx_put_session, |
75f8c1f6 NB |
2011 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
2012 | .close_session = tcm_qla2xxx_close_session, | |
2013 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
2014 | .sess_get_initiator_sid = NULL, | |
2015 | .write_pending = tcm_qla2xxx_write_pending, | |
2016 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
2017 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
2018 | .get_task_tag = tcm_qla2xxx_get_task_tag, | |
2019 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | |
2020 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
2021 | .queue_status = tcm_qla2xxx_queue_status, | |
2022 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 2023 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
2024 | /* |
2025 | * Setup function pointers for generic logic in | |
2026 | * target_core_fabric_configfs.c | |
2027 | */ | |
2028 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
2029 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
2030 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
2031 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
2032 | .fabric_post_link = NULL, | |
2033 | .fabric_pre_unlink = NULL, | |
2034 | .fabric_make_np = NULL, | |
2035 | .fabric_drop_np = NULL, | |
2036 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, | |
2037 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, | |
2038 | }; | |
2039 | ||
2040 | static int tcm_qla2xxx_register_configfs(void) | |
2041 | { | |
2042 | struct target_fabric_configfs *fabric, *npiv_fabric; | |
2043 | int ret; | |
2044 | ||
2045 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | |
2046 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
2047 | utsname()->machine); | |
2048 | /* | |
2049 | * Register the top level struct config_item_type with TCM core | |
2050 | */ | |
2051 | fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx"); | |
2052 | if (IS_ERR(fabric)) { | |
2053 | pr_err("target_fabric_configfs_init() failed\n"); | |
2054 | return PTR_ERR(fabric); | |
2055 | } | |
2056 | /* | |
2057 | * Setup fabric->tf_ops from our local tcm_qla2xxx_ops | |
2058 | */ | |
2059 | fabric->tf_ops = tcm_qla2xxx_ops; | |
2060 | /* | |
2061 | * Setup default attribute lists for various fabric->tf_cit_tmpl | |
2062 | */ | |
d80e224d AG |
2063 | fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; |
2064 | fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs; | |
2065 | fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = | |
75f8c1f6 | 2066 | tcm_qla2xxx_tpg_attrib_attrs; |
d80e224d AG |
2067 | fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; |
2068 | fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; | |
2069 | fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; | |
2070 | fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; | |
2071 | fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; | |
2072 | fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; | |
75f8c1f6 NB |
2073 | /* |
2074 | * Register the fabric for use within TCM | |
2075 | */ | |
2076 | ret = target_fabric_configfs_register(fabric); | |
2077 | if (ret < 0) { | |
2078 | pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n"); | |
2079 | return ret; | |
2080 | } | |
2081 | /* | |
2082 | * Setup our local pointer to *fabric | |
2083 | */ | |
2084 | tcm_qla2xxx_fabric_configfs = fabric; | |
2085 | pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_fabric_configfs\n"); | |
2086 | ||
2087 | /* | |
2088 | * Register the top level struct config_item_type for NPIV with TCM core | |
2089 | */ | |
2090 | npiv_fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx_npiv"); | |
2091 | if (IS_ERR(npiv_fabric)) { | |
2092 | pr_err("target_fabric_configfs_init() failed\n"); | |
2093 | ret = PTR_ERR(npiv_fabric); | |
2094 | goto out_fabric; | |
2095 | } | |
2096 | /* | |
2097 | * Setup fabric->tf_ops from our local tcm_qla2xxx_npiv_ops | |
2098 | */ | |
2099 | npiv_fabric->tf_ops = tcm_qla2xxx_npiv_ops; | |
2100 | /* | |
2101 | * Setup default attribute lists for various npiv_fabric->tf_cit_tmpl | |
2102 | */ | |
d80e224d | 2103 | npiv_fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; |
0e8cd71c | 2104 | npiv_fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = |
394d62ba | 2105 | tcm_qla2xxx_npiv_tpg_attrs; |
d80e224d AG |
2106 | npiv_fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; |
2107 | npiv_fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; | |
2108 | npiv_fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; | |
2109 | npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; | |
2110 | npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; | |
2111 | npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; | |
2112 | npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; | |
75f8c1f6 NB |
2113 | /* |
2114 | * Register the npiv_fabric for use within TCM | |
2115 | */ | |
2116 | ret = target_fabric_configfs_register(npiv_fabric); | |
2117 | if (ret < 0) { | |
2118 | pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n"); | |
2119 | goto out_fabric; | |
2120 | } | |
2121 | /* | |
2122 | * Setup our local pointer to *npiv_fabric | |
2123 | */ | |
2124 | tcm_qla2xxx_npiv_fabric_configfs = npiv_fabric; | |
2125 | pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_npiv_fabric_configfs\n"); | |
2126 | ||
2127 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
2128 | WQ_MEM_RECLAIM, 0); | |
2129 | if (!tcm_qla2xxx_free_wq) { | |
2130 | ret = -ENOMEM; | |
2131 | goto out_fabric_npiv; | |
2132 | } | |
2133 | ||
2134 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
2135 | if (!tcm_qla2xxx_cmd_wq) { | |
2136 | ret = -ENOMEM; | |
2137 | goto out_free_wq; | |
2138 | } | |
2139 | ||
2140 | return 0; | |
2141 | ||
2142 | out_free_wq: | |
2143 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2144 | out_fabric_npiv: | |
2145 | target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs); | |
2146 | out_fabric: | |
2147 | target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs); | |
2148 | return ret; | |
2149 | } | |
2150 | ||
2151 | static void tcm_qla2xxx_deregister_configfs(void) | |
2152 | { | |
2153 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
2154 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2155 | ||
2156 | target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs); | |
2157 | tcm_qla2xxx_fabric_configfs = NULL; | |
2158 | pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_fabric_configfs\n"); | |
2159 | ||
2160 | target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs); | |
2161 | tcm_qla2xxx_npiv_fabric_configfs = NULL; | |
2162 | pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_npiv_fabric_configfs\n"); | |
2163 | } | |
2164 | ||
2165 | static int __init tcm_qla2xxx_init(void) | |
2166 | { | |
2167 | int ret; | |
2168 | ||
2169 | ret = tcm_qla2xxx_register_configfs(); | |
2170 | if (ret < 0) | |
2171 | return ret; | |
2172 | ||
2173 | return 0; | |
2174 | } | |
2175 | ||
2176 | static void __exit tcm_qla2xxx_exit(void) | |
2177 | { | |
2178 | tcm_qla2xxx_deregister_configfs(); | |
2179 | } | |
2180 | ||
2181 | MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver"); | |
2182 | MODULE_LICENSE("GPL"); | |
2183 | module_init(tcm_qla2xxx_init); | |
2184 | module_exit(tcm_qla2xxx_exit); |