diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/tcm_qla2xxx.c')
-rw-r--r-- | drivers/scsi/qla2xxx/tcm_qla2xxx.c | 1919 |
1 files changed, 1919 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c new file mode 100644 index 000000000000..6e64314dbbb3 --- /dev/null +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c | |||
@@ -0,0 +1,1919 @@ | |||
1 | /******************************************************************************* | ||
2 | * This file contains tcm implementation using v4 configfs fabric infrastructure | ||
3 | * for QLogic target mode HBAs | ||
4 | * | ||
5 | * ?? Copyright 2010-2011 RisingTide Systems LLC. | ||
6 | * | ||
7 | * Licensed to the Linux Foundation under the General Public License (GPL) | ||
8 | * version 2. | ||
9 | * | ||
10 | * Author: Nicholas A. Bellinger <nab@risingtidesystems.com> | ||
11 | * | ||
12 | * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from | ||
13 | * the TCM_FC / Open-FCoE.org fabric module. | ||
14 | * | ||
15 | * Copyright (c) 2010 Cisco Systems, Inc | ||
16 | * | ||
17 | * This program is free software; you can redistribute it and/or modify | ||
18 | * it under the terms of the GNU General Public License as published by | ||
19 | * the Free Software Foundation; either version 2 of the License, or | ||
20 | * (at your option) any later version. | ||
21 | * | ||
22 | * This program is distributed in the hope that it will be useful, | ||
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
25 | * GNU General Public License for more details. | ||
26 | ****************************************************************************/ | ||
27 | |||
28 | |||
29 | #include <linux/module.h> | ||
30 | #include <linux/moduleparam.h> | ||
31 | #include <generated/utsrelease.h> | ||
32 | #include <linux/utsname.h> | ||
33 | #include <linux/init.h> | ||
34 | #include <linux/list.h> | ||
35 | #include <linux/slab.h> | ||
36 | #include <linux/kthread.h> | ||
37 | #include <linux/types.h> | ||
38 | #include <linux/string.h> | ||
39 | #include <linux/configfs.h> | ||
40 | #include <linux/ctype.h> | ||
41 | #include <linux/string.h> | ||
42 | #include <linux/ctype.h> | ||
43 | #include <asm/unaligned.h> | ||
44 | #include <scsi/scsi.h> | ||
45 | #include <scsi/scsi_host.h> | ||
46 | #include <scsi/scsi_device.h> | ||
47 | #include <scsi/scsi_cmnd.h> | ||
48 | #include <target/target_core_base.h> | ||
49 | #include <target/target_core_fabric.h> | ||
50 | #include <target/target_core_fabric_configfs.h> | ||
51 | #include <target/target_core_configfs.h> | ||
52 | #include <target/configfs_macros.h> | ||
53 | |||
54 | #include "qla_def.h" | ||
55 | #include "qla_target.h" | ||
56 | #include "tcm_qla2xxx.h" | ||
57 | |||
58 | struct workqueue_struct *tcm_qla2xxx_free_wq; | ||
59 | struct workqueue_struct *tcm_qla2xxx_cmd_wq; | ||
60 | |||
61 | static int tcm_qla2xxx_check_true(struct se_portal_group *se_tpg) | ||
62 | { | ||
63 | return 1; | ||
64 | } | ||
65 | |||
66 | static int tcm_qla2xxx_check_false(struct se_portal_group *se_tpg) | ||
67 | { | ||
68 | return 0; | ||
69 | } | ||
70 | |||
71 | /* | ||
72 | * Parse WWN. | ||
73 | * If strict, we require lower-case hex and colon separators to be sure | ||
74 | * the name is the same as what would be generated by ft_format_wwn() | ||
75 | * so the name and wwn are mapped one-to-one. | ||
76 | */ | ||
77 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | ||
78 | { | ||
79 | const char *cp; | ||
80 | char c; | ||
81 | u32 nibble; | ||
82 | u32 byte = 0; | ||
83 | u32 pos = 0; | ||
84 | u32 err; | ||
85 | |||
86 | *wwn = 0; | ||
87 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | ||
88 | c = *cp; | ||
89 | if (c == '\n' && cp[1] == '\0') | ||
90 | continue; | ||
91 | if (strict && pos++ == 2 && byte++ < 7) { | ||
92 | pos = 0; | ||
93 | if (c == ':') | ||
94 | continue; | ||
95 | err = 1; | ||
96 | goto fail; | ||
97 | } | ||
98 | if (c == '\0') { | ||
99 | err = 2; | ||
100 | if (strict && byte != 8) | ||
101 | goto fail; | ||
102 | return cp - name; | ||
103 | } | ||
104 | err = 3; | ||
105 | if (isdigit(c)) | ||
106 | nibble = c - '0'; | ||
107 | else if (isxdigit(c) && (islower(c) || !strict)) | ||
108 | nibble = tolower(c) - 'a' + 10; | ||
109 | else | ||
110 | goto fail; | ||
111 | *wwn = (*wwn << 4) | nibble; | ||
112 | } | ||
113 | err = 4; | ||
114 | fail: | ||
115 | pr_debug("err %u len %zu pos %u byte %u\n", | ||
116 | err, cp - name, pos, byte); | ||
117 | return -1; | ||
118 | } | ||
119 | |||
120 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | ||
121 | { | ||
122 | u8 b[8]; | ||
123 | |||
124 | put_unaligned_be64(wwn, b); | ||
125 | return snprintf(buf, len, | ||
126 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | ||
127 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | ||
128 | } | ||
129 | |||
130 | static char *tcm_qla2xxx_get_fabric_name(void) | ||
131 | { | ||
132 | return "qla2xxx"; | ||
133 | } | ||
134 | |||
135 | /* | ||
136 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | ||
137 | */ | ||
138 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | ||
139 | { | ||
140 | unsigned int i, j; | ||
141 | u8 wwn[8]; | ||
142 | |||
143 | memset(wwn, 0, sizeof(wwn)); | ||
144 | |||
145 | /* Validate and store the new name */ | ||
146 | for (i = 0, j = 0; i < 16; i++) { | ||
147 | int value; | ||
148 | |||
149 | value = hex_to_bin(*ns++); | ||
150 | if (value >= 0) | ||
151 | j = (j << 4) | value; | ||
152 | else | ||
153 | return -EINVAL; | ||
154 | |||
155 | if (i % 2) { | ||
156 | wwn[i/2] = j & 0xff; | ||
157 | j = 0; | ||
158 | } | ||
159 | } | ||
160 | |||
161 | *nm = wwn_to_u64(wwn); | ||
162 | return 0; | ||
163 | } | ||
164 | |||
165 | /* | ||
166 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | ||
167 | * store_fc_host_vport_create() | ||
168 | */ | ||
169 | static int tcm_qla2xxx_npiv_parse_wwn( | ||
170 | const char *name, | ||
171 | size_t count, | ||
172 | u64 *wwpn, | ||
173 | u64 *wwnn) | ||
174 | { | ||
175 | unsigned int cnt = count; | ||
176 | int rc; | ||
177 | |||
178 | *wwpn = 0; | ||
179 | *wwnn = 0; | ||
180 | |||
181 | /* count may include a LF at end of string */ | ||
182 | if (name[cnt-1] == '\n') | ||
183 | cnt--; | ||
184 | |||
185 | /* validate we have enough characters for WWPN */ | ||
186 | if ((cnt != (16+1+16)) || (name[16] != ':')) | ||
187 | return -EINVAL; | ||
188 | |||
189 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | ||
190 | if (rc != 0) | ||
191 | return rc; | ||
192 | |||
193 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | ||
194 | if (rc != 0) | ||
195 | return rc; | ||
196 | |||
197 | return 0; | ||
198 | } | ||
199 | |||
200 | static ssize_t tcm_qla2xxx_npiv_format_wwn(char *buf, size_t len, | ||
201 | u64 wwpn, u64 wwnn) | ||
202 | { | ||
203 | u8 b[8], b2[8]; | ||
204 | |||
205 | put_unaligned_be64(wwpn, b); | ||
206 | put_unaligned_be64(wwnn, b2); | ||
207 | return snprintf(buf, len, | ||
208 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x," | ||
209 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | ||
210 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7], | ||
211 | b2[0], b2[1], b2[2], b2[3], b2[4], b2[5], b2[6], b2[7]); | ||
212 | } | ||
213 | |||
214 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) | ||
215 | { | ||
216 | return "qla2xxx_npiv"; | ||
217 | } | ||
218 | |||
219 | static u8 tcm_qla2xxx_get_fabric_proto_ident(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 | struct tcm_qla2xxx_lport *lport = tpg->lport; | ||
224 | u8 proto_id; | ||
225 | |||
226 | switch (lport->lport_proto_id) { | ||
227 | case SCSI_PROTOCOL_FCP: | ||
228 | default: | ||
229 | proto_id = fc_get_fabric_proto_ident(se_tpg); | ||
230 | break; | ||
231 | } | ||
232 | |||
233 | return proto_id; | ||
234 | } | ||
235 | |||
236 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) | ||
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 | |||
242 | return &lport->lport_name[0]; | ||
243 | } | ||
244 | |||
245 | static char *tcm_qla2xxx_npiv_get_fabric_wwn(struct se_portal_group *se_tpg) | ||
246 | { | ||
247 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
248 | struct tcm_qla2xxx_tpg, se_tpg); | ||
249 | struct tcm_qla2xxx_lport *lport = tpg->lport; | ||
250 | |||
251 | return &lport->lport_npiv_name[0]; | ||
252 | } | ||
253 | |||
254 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) | ||
255 | { | ||
256 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
257 | struct tcm_qla2xxx_tpg, se_tpg); | ||
258 | return tpg->lport_tpgt; | ||
259 | } | ||
260 | |||
261 | static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg) | ||
262 | { | ||
263 | return 1; | ||
264 | } | ||
265 | |||
266 | static u32 tcm_qla2xxx_get_pr_transport_id( | ||
267 | struct se_portal_group *se_tpg, | ||
268 | struct se_node_acl *se_nacl, | ||
269 | struct t10_pr_registration *pr_reg, | ||
270 | int *format_code, | ||
271 | unsigned char *buf) | ||
272 | { | ||
273 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
274 | struct tcm_qla2xxx_tpg, se_tpg); | ||
275 | struct tcm_qla2xxx_lport *lport = tpg->lport; | ||
276 | int ret = 0; | ||
277 | |||
278 | switch (lport->lport_proto_id) { | ||
279 | case SCSI_PROTOCOL_FCP: | ||
280 | default: | ||
281 | ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, | ||
282 | format_code, buf); | ||
283 | break; | ||
284 | } | ||
285 | |||
286 | return ret; | ||
287 | } | ||
288 | |||
289 | static u32 tcm_qla2xxx_get_pr_transport_id_len( | ||
290 | struct se_portal_group *se_tpg, | ||
291 | struct se_node_acl *se_nacl, | ||
292 | struct t10_pr_registration *pr_reg, | ||
293 | int *format_code) | ||
294 | { | ||
295 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
296 | struct tcm_qla2xxx_tpg, se_tpg); | ||
297 | struct tcm_qla2xxx_lport *lport = tpg->lport; | ||
298 | int ret = 0; | ||
299 | |||
300 | switch (lport->lport_proto_id) { | ||
301 | case SCSI_PROTOCOL_FCP: | ||
302 | default: | ||
303 | ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, | ||
304 | format_code); | ||
305 | break; | ||
306 | } | ||
307 | |||
308 | return ret; | ||
309 | } | ||
310 | |||
311 | static char *tcm_qla2xxx_parse_pr_out_transport_id( | ||
312 | struct se_portal_group *se_tpg, | ||
313 | const char *buf, | ||
314 | u32 *out_tid_len, | ||
315 | char **port_nexus_ptr) | ||
316 | { | ||
317 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
318 | struct tcm_qla2xxx_tpg, se_tpg); | ||
319 | struct tcm_qla2xxx_lport *lport = tpg->lport; | ||
320 | char *tid = NULL; | ||
321 | |||
322 | switch (lport->lport_proto_id) { | ||
323 | case SCSI_PROTOCOL_FCP: | ||
324 | default: | ||
325 | tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, | ||
326 | port_nexus_ptr); | ||
327 | break; | ||
328 | } | ||
329 | |||
330 | return tid; | ||
331 | } | ||
332 | |||
333 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) | ||
334 | { | ||
335 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
336 | struct tcm_qla2xxx_tpg, se_tpg); | ||
337 | |||
338 | return QLA_TPG_ATTRIB(tpg)->generate_node_acls; | ||
339 | } | ||
340 | |||
341 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | ||
342 | { | ||
343 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
344 | struct tcm_qla2xxx_tpg, se_tpg); | ||
345 | |||
346 | return QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls; | ||
347 | } | ||
348 | |||
349 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | ||
350 | { | ||
351 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
352 | struct tcm_qla2xxx_tpg, se_tpg); | ||
353 | |||
354 | return QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect; | ||
355 | } | ||
356 | |||
357 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | ||
358 | { | ||
359 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
360 | struct tcm_qla2xxx_tpg, se_tpg); | ||
361 | |||
362 | return QLA_TPG_ATTRIB(tpg)->prod_mode_write_protect; | ||
363 | } | ||
364 | |||
365 | static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl( | ||
366 | struct se_portal_group *se_tpg) | ||
367 | { | ||
368 | struct tcm_qla2xxx_nacl *nacl; | ||
369 | |||
370 | nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL); | ||
371 | if (!nacl) { | ||
372 | pr_err("Unable to alocate struct tcm_qla2xxx_nacl\n"); | ||
373 | return NULL; | ||
374 | } | ||
375 | |||
376 | return &nacl->se_node_acl; | ||
377 | } | ||
378 | |||
379 | static void tcm_qla2xxx_release_fabric_acl( | ||
380 | struct se_portal_group *se_tpg, | ||
381 | struct se_node_acl *se_nacl) | ||
382 | { | ||
383 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | ||
384 | struct tcm_qla2xxx_nacl, se_node_acl); | ||
385 | kfree(nacl); | ||
386 | } | ||
387 | |||
388 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) | ||
389 | { | ||
390 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
391 | struct tcm_qla2xxx_tpg, se_tpg); | ||
392 | |||
393 | return tpg->lport_tpgt; | ||
394 | } | ||
395 | |||
396 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | ||
397 | { | ||
398 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | ||
399 | struct qla_tgt_mgmt_cmd, free_work); | ||
400 | |||
401 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | ||
402 | } | ||
403 | |||
404 | /* | ||
405 | * Called from qla_target_template->free_mcmd(), and will call | ||
406 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | ||
407 | * release callback. qla_hw_data->hardware_lock is expected to be held | ||
408 | */ | ||
409 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | ||
410 | { | ||
411 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | ||
412 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | ||
413 | } | ||
414 | |||
415 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | ||
416 | { | ||
417 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | ||
418 | |||
419 | transport_generic_free_cmd(&cmd->se_cmd, 0); | ||
420 | } | ||
421 | |||
422 | /* | ||
423 | * Called from qla_target_template->free_cmd(), and will call | ||
424 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | ||
425 | * release callback. qla_hw_data->hardware_lock is expected to be held | ||
426 | */ | ||
427 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | ||
428 | { | ||
429 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); | ||
430 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | ||
431 | } | ||
432 | |||
433 | /* | ||
434 | * Called from struct target_core_fabric_ops->check_stop_free() context | ||
435 | */ | ||
436 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | ||
437 | { | ||
438 | return target_put_sess_cmd(se_cmd->se_sess, se_cmd); | ||
439 | } | ||
440 | |||
441 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | ||
442 | * fabric descriptor @se_cmd command to release | ||
443 | */ | ||
444 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | ||
445 | { | ||
446 | struct qla_tgt_cmd *cmd; | ||
447 | |||
448 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | ||
449 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | ||
450 | struct qla_tgt_mgmt_cmd, se_cmd); | ||
451 | qlt_free_mcmd(mcmd); | ||
452 | return; | ||
453 | } | ||
454 | |||
455 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | ||
456 | qlt_free_cmd(cmd); | ||
457 | } | ||
458 | |||
459 | static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess) | ||
460 | { | ||
461 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | ||
462 | struct scsi_qla_host *vha; | ||
463 | unsigned long flags; | ||
464 | |||
465 | BUG_ON(!sess); | ||
466 | vha = sess->vha; | ||
467 | |||
468 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | ||
469 | sess->tearing_down = 1; | ||
470 | target_splice_sess_cmd_list(se_sess); | ||
471 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | ||
472 | |||
473 | return 1; | ||
474 | } | ||
475 | |||
476 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) | ||
477 | { | ||
478 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | ||
479 | struct scsi_qla_host *vha; | ||
480 | unsigned long flags; | ||
481 | |||
482 | BUG_ON(!sess); | ||
483 | vha = sess->vha; | ||
484 | |||
485 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | ||
486 | qlt_unreg_sess(sess); | ||
487 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | ||
488 | } | ||
489 | |||
490 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | ||
491 | { | ||
492 | return 0; | ||
493 | } | ||
494 | |||
495 | /* | ||
496 | * The LIO target core uses DMA_TO_DEVICE to mean that data is going | ||
497 | * to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean | ||
498 | * that data is coming from the target (eg handling a READ). However, | ||
499 | * this is just the opposite of what we have to tell the DMA mapping | ||
500 | * layer -- eg when handling a READ, the HBA will have to DMA the data | ||
501 | * out of memory so it can send it to the initiator, which means we | ||
502 | * need to use DMA_TO_DEVICE when we map the data. | ||
503 | */ | ||
504 | static enum dma_data_direction tcm_qla2xxx_mapping_dir(struct se_cmd *se_cmd) | ||
505 | { | ||
506 | if (se_cmd->se_cmd_flags & SCF_BIDI) | ||
507 | return DMA_BIDIRECTIONAL; | ||
508 | |||
509 | switch (se_cmd->data_direction) { | ||
510 | case DMA_TO_DEVICE: | ||
511 | return DMA_FROM_DEVICE; | ||
512 | case DMA_FROM_DEVICE: | ||
513 | return DMA_TO_DEVICE; | ||
514 | case DMA_NONE: | ||
515 | default: | ||
516 | return DMA_NONE; | ||
517 | } | ||
518 | } | ||
519 | |||
520 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) | ||
521 | { | ||
522 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | ||
523 | struct qla_tgt_cmd, se_cmd); | ||
524 | |||
525 | cmd->bufflen = se_cmd->data_length; | ||
526 | cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd); | ||
527 | |||
528 | cmd->sg_cnt = se_cmd->t_data_nents; | ||
529 | cmd->sg = se_cmd->t_data_sg; | ||
530 | |||
531 | /* | ||
532 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | ||
533 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | ||
534 | */ | ||
535 | return qlt_rdy_to_xfer(cmd); | ||
536 | } | ||
537 | |||
538 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | ||
539 | { | ||
540 | unsigned long flags; | ||
541 | /* | ||
542 | * Check for WRITE_PENDING status to determine if we need to wait for | ||
543 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | ||
544 | */ | ||
545 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | ||
546 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | ||
547 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | ||
548 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | ||
549 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | ||
550 | 3000); | ||
551 | return 0; | ||
552 | } | ||
553 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | ||
554 | |||
555 | return 0; | ||
556 | } | ||
557 | |||
558 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | ||
559 | { | ||
560 | return; | ||
561 | } | ||
562 | |||
563 | static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd) | ||
564 | { | ||
565 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | ||
566 | struct qla_tgt_cmd, se_cmd); | ||
567 | |||
568 | return cmd->tag; | ||
569 | } | ||
570 | |||
571 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) | ||
572 | { | ||
573 | return 0; | ||
574 | } | ||
575 | |||
576 | /* | ||
577 | * Called from process context in qla_target.c:qlt_do_work() code | ||
578 | */ | ||
579 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | ||
580 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | ||
581 | int data_dir, int bidi) | ||
582 | { | ||
583 | struct se_cmd *se_cmd = &cmd->se_cmd; | ||
584 | struct se_session *se_sess; | ||
585 | struct qla_tgt_sess *sess; | ||
586 | int flags = TARGET_SCF_ACK_KREF; | ||
587 | |||
588 | if (bidi) | ||
589 | flags |= TARGET_SCF_BIDI_OP; | ||
590 | |||
591 | sess = cmd->sess; | ||
592 | if (!sess) { | ||
593 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); | ||
594 | return -EINVAL; | ||
595 | } | ||
596 | |||
597 | se_sess = sess->se_sess; | ||
598 | if (!se_sess) { | ||
599 | pr_err("Unable to locate active struct se_session\n"); | ||
600 | return -EINVAL; | ||
601 | } | ||
602 | |||
603 | target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], | ||
604 | cmd->unpacked_lun, data_length, fcp_task_attr, | ||
605 | data_dir, flags); | ||
606 | return 0; | ||
607 | } | ||
608 | |||
609 | static void tcm_qla2xxx_do_rsp(struct work_struct *work) | ||
610 | { | ||
611 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | ||
612 | /* | ||
613 | * Dispatch ->queue_status from workqueue process context | ||
614 | */ | ||
615 | transport_generic_request_failure(&cmd->se_cmd); | ||
616 | } | ||
617 | |||
618 | /* | ||
619 | * Called from qla_target.c:qlt_do_ctio_completion() | ||
620 | */ | ||
621 | static int tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | ||
622 | { | ||
623 | struct se_cmd *se_cmd = &cmd->se_cmd; | ||
624 | unsigned long flags; | ||
625 | /* | ||
626 | * Ensure that the complete FCP WRITE payload has been received. | ||
627 | * Otherwise return an exception via CHECK_CONDITION status. | ||
628 | */ | ||
629 | if (!cmd->write_data_transferred) { | ||
630 | /* | ||
631 | * Check if se_cmd has already been aborted via LUN_RESET, and | ||
632 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | ||
633 | */ | ||
634 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | ||
635 | if (se_cmd->transport_state & CMD_T_ABORTED) { | ||
636 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | ||
637 | complete(&se_cmd->t_transport_stop_comp); | ||
638 | return 0; | ||
639 | } | ||
640 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | ||
641 | |||
642 | se_cmd->scsi_sense_reason = TCM_CHECK_CONDITION_ABORT_CMD; | ||
643 | INIT_WORK(&cmd->work, tcm_qla2xxx_do_rsp); | ||
644 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | ||
645 | return 0; | ||
646 | } | ||
647 | /* | ||
648 | * We now tell TCM to queue this WRITE CDB with TRANSPORT_PROCESS_WRITE | ||
649 | * status to the backstore processing thread. | ||
650 | */ | ||
651 | return transport_generic_handle_data(&cmd->se_cmd); | ||
652 | } | ||
653 | |||
654 | /* | ||
655 | * Called from qla_target.c:qlt_issue_task_mgmt() | ||
656 | */ | ||
657 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, | ||
658 | uint8_t tmr_func, uint32_t tag) | ||
659 | { | ||
660 | struct qla_tgt_sess *sess = mcmd->sess; | ||
661 | struct se_cmd *se_cmd = &mcmd->se_cmd; | ||
662 | |||
663 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | ||
664 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); | ||
665 | } | ||
666 | |||
667 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | ||
668 | { | ||
669 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | ||
670 | struct qla_tgt_cmd, se_cmd); | ||
671 | |||
672 | cmd->bufflen = se_cmd->data_length; | ||
673 | cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd); | ||
674 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); | ||
675 | |||
676 | cmd->sg_cnt = se_cmd->t_data_nents; | ||
677 | cmd->sg = se_cmd->t_data_sg; | ||
678 | cmd->offset = 0; | ||
679 | |||
680 | /* | ||
681 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | ||
682 | */ | ||
683 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | ||
684 | se_cmd->scsi_status); | ||
685 | } | ||
686 | |||
687 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | ||
688 | { | ||
689 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | ||
690 | struct qla_tgt_cmd, se_cmd); | ||
691 | int xmit_type = QLA_TGT_XMIT_STATUS; | ||
692 | |||
693 | cmd->bufflen = se_cmd->data_length; | ||
694 | cmd->sg = NULL; | ||
695 | cmd->sg_cnt = 0; | ||
696 | cmd->offset = 0; | ||
697 | cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd); | ||
698 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); | ||
699 | |||
700 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | ||
701 | /* | ||
702 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | ||
703 | * for qla_tgt_xmit_response LLD code | ||
704 | */ | ||
705 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; | ||
706 | se_cmd->residual_count = se_cmd->data_length; | ||
707 | |||
708 | cmd->bufflen = 0; | ||
709 | } | ||
710 | /* | ||
711 | * Now queue status response to qla2xxx LLD code and response ring | ||
712 | */ | ||
713 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | ||
714 | } | ||
715 | |||
716 | static int tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) | ||
717 | { | ||
718 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | ||
719 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | ||
720 | struct qla_tgt_mgmt_cmd, se_cmd); | ||
721 | |||
722 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | ||
723 | mcmd, se_tmr->function, se_tmr->response); | ||
724 | /* | ||
725 | * Do translation between TCM TM response codes and | ||
726 | * QLA2xxx FC TM response codes. | ||
727 | */ | ||
728 | switch (se_tmr->response) { | ||
729 | case TMR_FUNCTION_COMPLETE: | ||
730 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | ||
731 | break; | ||
732 | case TMR_TASK_DOES_NOT_EXIST: | ||
733 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | ||
734 | break; | ||
735 | case TMR_FUNCTION_REJECTED: | ||
736 | mcmd->fc_tm_rsp = FC_TM_REJECT; | ||
737 | break; | ||
738 | case TMR_LUN_DOES_NOT_EXIST: | ||
739 | default: | ||
740 | mcmd->fc_tm_rsp = FC_TM_FAILED; | ||
741 | break; | ||
742 | } | ||
743 | /* | ||
744 | * Queue the TM response to QLA2xxx LLD to build a | ||
745 | * CTIO response packet. | ||
746 | */ | ||
747 | qlt_xmit_tm_rsp(mcmd); | ||
748 | |||
749 | return 0; | ||
750 | } | ||
751 | |||
752 | static u16 tcm_qla2xxx_get_fabric_sense_len(void) | ||
753 | { | ||
754 | return 0; | ||
755 | } | ||
756 | |||
757 | static u16 tcm_qla2xxx_set_fabric_sense_len(struct se_cmd *se_cmd, | ||
758 | u32 sense_length) | ||
759 | { | ||
760 | return 0; | ||
761 | } | ||
762 | |||
763 | /* Local pointer to allocated TCM configfs fabric module */ | ||
764 | struct target_fabric_configfs *tcm_qla2xxx_fabric_configfs; | ||
765 | struct target_fabric_configfs *tcm_qla2xxx_npiv_fabric_configfs; | ||
766 | |||
767 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, | ||
768 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); | ||
769 | /* | ||
770 | * Expected to be called with struct qla_hw_data->hardware_lock held | ||
771 | */ | ||
772 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) | ||
773 | { | ||
774 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | ||
775 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | ||
776 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | ||
777 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | ||
778 | struct tcm_qla2xxx_lport, lport_wwn); | ||
779 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | ||
780 | struct tcm_qla2xxx_nacl, se_node_acl); | ||
781 | void *node; | ||
782 | |||
783 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | ||
784 | |||
785 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | ||
786 | WARN_ON(node && (node != se_nacl)); | ||
787 | |||
788 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | ||
789 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | ||
790 | /* | ||
791 | * Now clear the se_nacl and session pointers from our HW lport lookup | ||
792 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | ||
793 | * | ||
794 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | ||
795 | * target_wait_for_sess_cmds() before the session waits for outstanding | ||
796 | * I/O to complete, to avoid a race between session shutdown execution | ||
797 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | ||
798 | */ | ||
799 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | ||
800 | } | ||
801 | |||
802 | static void tcm_qla2xxx_release_session(struct kref *kref) | ||
803 | { | ||
804 | struct se_session *se_sess = container_of(kref, | ||
805 | struct se_session, sess_kref); | ||
806 | |||
807 | qlt_unreg_sess(se_sess->fabric_sess_ptr); | ||
808 | } | ||
809 | |||
810 | static void tcm_qla2xxx_put_session(struct se_session *se_sess) | ||
811 | { | ||
812 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | ||
813 | struct qla_hw_data *ha = sess->vha->hw; | ||
814 | unsigned long flags; | ||
815 | |||
816 | spin_lock_irqsave(&ha->hardware_lock, flags); | ||
817 | kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session); | ||
818 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | ||
819 | } | ||
820 | |||
821 | static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess) | ||
822 | { | ||
823 | tcm_qla2xxx_put_session(sess->se_sess); | ||
824 | } | ||
825 | |||
826 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) | ||
827 | { | ||
828 | tcm_qla2xxx_shutdown_session(sess->se_sess); | ||
829 | } | ||
830 | |||
831 | static struct se_node_acl *tcm_qla2xxx_make_nodeacl( | ||
832 | struct se_portal_group *se_tpg, | ||
833 | struct config_group *group, | ||
834 | const char *name) | ||
835 | { | ||
836 | struct se_node_acl *se_nacl, *se_nacl_new; | ||
837 | struct tcm_qla2xxx_nacl *nacl; | ||
838 | u64 wwnn; | ||
839 | u32 qla2xxx_nexus_depth; | ||
840 | |||
841 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | ||
842 | return ERR_PTR(-EINVAL); | ||
843 | |||
844 | se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg); | ||
845 | if (!se_nacl_new) | ||
846 | return ERR_PTR(-ENOMEM); | ||
847 | /* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */ | ||
848 | qla2xxx_nexus_depth = 1; | ||
849 | |||
850 | /* | ||
851 | * se_nacl_new may be released by core_tpg_add_initiator_node_acl() | ||
852 | * when converting a NodeACL from demo mode -> explict | ||
853 | */ | ||
854 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, | ||
855 | name, qla2xxx_nexus_depth); | ||
856 | if (IS_ERR(se_nacl)) { | ||
857 | tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new); | ||
858 | return se_nacl; | ||
859 | } | ||
860 | /* | ||
861 | * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN | ||
862 | */ | ||
863 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | ||
864 | nacl->nport_wwnn = wwnn; | ||
865 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | ||
866 | |||
867 | return se_nacl; | ||
868 | } | ||
869 | |||
870 | static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl) | ||
871 | { | ||
872 | struct se_portal_group *se_tpg = se_acl->se_tpg; | ||
873 | struct tcm_qla2xxx_nacl *nacl = container_of(se_acl, | ||
874 | struct tcm_qla2xxx_nacl, se_node_acl); | ||
875 | |||
876 | core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1); | ||
877 | kfree(nacl); | ||
878 | } | ||
879 | |||
880 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | ||
881 | |||
882 | #define DEF_QLA_TPG_ATTRIB(name) \ | ||
883 | \ | ||
884 | static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ | ||
885 | struct se_portal_group *se_tpg, \ | ||
886 | char *page) \ | ||
887 | { \ | ||
888 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | ||
889 | struct tcm_qla2xxx_tpg, se_tpg); \ | ||
890 | \ | ||
891 | return sprintf(page, "%u\n", QLA_TPG_ATTRIB(tpg)->name); \ | ||
892 | } \ | ||
893 | \ | ||
894 | static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ | ||
895 | struct se_portal_group *se_tpg, \ | ||
896 | const char *page, \ | ||
897 | size_t count) \ | ||
898 | { \ | ||
899 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | ||
900 | struct tcm_qla2xxx_tpg, se_tpg); \ | ||
901 | unsigned long val; \ | ||
902 | int ret; \ | ||
903 | \ | ||
904 | ret = kstrtoul(page, 0, &val); \ | ||
905 | if (ret < 0) { \ | ||
906 | pr_err("kstrtoul() failed with" \ | ||
907 | " ret: %d\n", ret); \ | ||
908 | return -EINVAL; \ | ||
909 | } \ | ||
910 | ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ | ||
911 | \ | ||
912 | return (!ret) ? count : -EINVAL; \ | ||
913 | } | ||
914 | |||
915 | #define DEF_QLA_TPG_ATTR_BOOL(_name) \ | ||
916 | \ | ||
917 | static int tcm_qla2xxx_set_attrib_##_name( \ | ||
918 | struct tcm_qla2xxx_tpg *tpg, \ | ||
919 | unsigned long val) \ | ||
920 | { \ | ||
921 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ | ||
922 | \ | ||
923 | if ((val != 0) && (val != 1)) { \ | ||
924 | pr_err("Illegal boolean value %lu\n", val); \ | ||
925 | return -EINVAL; \ | ||
926 | } \ | ||
927 | \ | ||
928 | a->_name = val; \ | ||
929 | return 0; \ | ||
930 | } | ||
931 | |||
932 | #define QLA_TPG_ATTR(_name, _mode) \ | ||
933 | TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); | ||
934 | |||
935 | /* | ||
936 | * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls | ||
937 | */ | ||
938 | DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); | ||
939 | DEF_QLA_TPG_ATTRIB(generate_node_acls); | ||
940 | QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | ||
941 | |||
942 | /* | ||
943 | Define tcm_qla2xxx_attrib_s_cache_dynamic_acls | ||
944 | */ | ||
945 | DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); | ||
946 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); | ||
947 | QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | ||
948 | |||
949 | /* | ||
950 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect | ||
951 | */ | ||
952 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); | ||
953 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); | ||
954 | QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | ||
955 | |||
956 | /* | ||
957 | * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect | ||
958 | */ | ||
959 | DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); | ||
960 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); | ||
961 | QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | ||
962 | |||
963 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { | ||
964 | &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, | ||
965 | &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, | ||
966 | &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, | ||
967 | &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, | ||
968 | NULL, | ||
969 | }; | ||
970 | |||
971 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | ||
972 | |||
973 | static ssize_t tcm_qla2xxx_tpg_show_enable( | ||
974 | struct se_portal_group *se_tpg, | ||
975 | char *page) | ||
976 | { | ||
977 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
978 | struct tcm_qla2xxx_tpg, se_tpg); | ||
979 | |||
980 | return snprintf(page, PAGE_SIZE, "%d\n", | ||
981 | atomic_read(&tpg->lport_tpg_enabled)); | ||
982 | } | ||
983 | |||
984 | static ssize_t tcm_qla2xxx_tpg_store_enable( | ||
985 | struct se_portal_group *se_tpg, | ||
986 | const char *page, | ||
987 | size_t count) | ||
988 | { | ||
989 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | ||
990 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | ||
991 | struct tcm_qla2xxx_lport, lport_wwn); | ||
992 | struct scsi_qla_host *vha = lport->qla_vha; | ||
993 | struct qla_hw_data *ha = vha->hw; | ||
994 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
995 | struct tcm_qla2xxx_tpg, se_tpg); | ||
996 | unsigned long op; | ||
997 | int rc; | ||
998 | |||
999 | rc = kstrtoul(page, 0, &op); | ||
1000 | if (rc < 0) { | ||
1001 | pr_err("kstrtoul() returned %d\n", rc); | ||
1002 | return -EINVAL; | ||
1003 | } | ||
1004 | if ((op != 1) && (op != 0)) { | ||
1005 | pr_err("Illegal value for tpg_enable: %lu\n", op); | ||
1006 | return -EINVAL; | ||
1007 | } | ||
1008 | |||
1009 | if (op) { | ||
1010 | atomic_set(&tpg->lport_tpg_enabled, 1); | ||
1011 | qlt_enable_vha(vha); | ||
1012 | } else { | ||
1013 | if (!ha->tgt.qla_tgt) { | ||
1014 | pr_err("truct qla_hw_data *ha->tgt.qla_tgt is NULL\n"); | ||
1015 | return -ENODEV; | ||
1016 | } | ||
1017 | atomic_set(&tpg->lport_tpg_enabled, 0); | ||
1018 | qlt_stop_phase1(ha->tgt.qla_tgt); | ||
1019 | } | ||
1020 | |||
1021 | return count; | ||
1022 | } | ||
1023 | |||
1024 | TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); | ||
1025 | |||
1026 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { | ||
1027 | &tcm_qla2xxx_tpg_enable.attr, | ||
1028 | NULL, | ||
1029 | }; | ||
1030 | |||
1031 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | ||
1032 | struct se_wwn *wwn, | ||
1033 | struct config_group *group, | ||
1034 | const char *name) | ||
1035 | { | ||
1036 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | ||
1037 | struct tcm_qla2xxx_lport, lport_wwn); | ||
1038 | struct tcm_qla2xxx_tpg *tpg; | ||
1039 | unsigned long tpgt; | ||
1040 | int ret; | ||
1041 | |||
1042 | if (strstr(name, "tpgt_") != name) | ||
1043 | return ERR_PTR(-EINVAL); | ||
1044 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | ||
1045 | return ERR_PTR(-EINVAL); | ||
1046 | |||
1047 | if (!lport->qla_npiv_vp && (tpgt != 1)) { | ||
1048 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); | ||
1049 | return ERR_PTR(-ENOSYS); | ||
1050 | } | ||
1051 | |||
1052 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | ||
1053 | if (!tpg) { | ||
1054 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | ||
1055 | return ERR_PTR(-ENOMEM); | ||
1056 | } | ||
1057 | tpg->lport = lport; | ||
1058 | tpg->lport_tpgt = tpgt; | ||
1059 | /* | ||
1060 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | ||
1061 | * NodeACLs | ||
1062 | */ | ||
1063 | QLA_TPG_ATTRIB(tpg)->generate_node_acls = 1; | ||
1064 | QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect = 1; | ||
1065 | QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls = 1; | ||
1066 | |||
1067 | ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn, | ||
1068 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); | ||
1069 | if (ret < 0) { | ||
1070 | kfree(tpg); | ||
1071 | return NULL; | ||
1072 | } | ||
1073 | /* | ||
1074 | * Setup local TPG=1 pointer for non NPIV mode. | ||
1075 | */ | ||
1076 | if (lport->qla_npiv_vp == NULL) | ||
1077 | lport->tpg_1 = tpg; | ||
1078 | |||
1079 | return &tpg->se_tpg; | ||
1080 | } | ||
1081 | |||
1082 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | ||
1083 | { | ||
1084 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | ||
1085 | struct tcm_qla2xxx_tpg, se_tpg); | ||
1086 | struct tcm_qla2xxx_lport *lport = tpg->lport; | ||
1087 | struct scsi_qla_host *vha = lport->qla_vha; | ||
1088 | struct qla_hw_data *ha = vha->hw; | ||
1089 | /* | ||
1090 | * Call into qla2x_target.c LLD logic to shutdown the active | ||
1091 | * FC Nexuses and disable target mode operation for this qla_hw_data | ||
1092 | */ | ||
1093 | if (ha->tgt.qla_tgt && !ha->tgt.qla_tgt->tgt_stop) | ||
1094 | qlt_stop_phase1(ha->tgt.qla_tgt); | ||
1095 | |||
1096 | core_tpg_deregister(se_tpg); | ||
1097 | /* | ||
1098 | * Clear local TPG=1 pointer for non NPIV mode. | ||
1099 | */ | ||
1100 | if (lport->qla_npiv_vp == NULL) | ||
1101 | lport->tpg_1 = NULL; | ||
1102 | |||
1103 | kfree(tpg); | ||
1104 | } | ||
1105 | |||
1106 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( | ||
1107 | struct se_wwn *wwn, | ||
1108 | struct config_group *group, | ||
1109 | const char *name) | ||
1110 | { | ||
1111 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | ||
1112 | struct tcm_qla2xxx_lport, lport_wwn); | ||
1113 | struct tcm_qla2xxx_tpg *tpg; | ||
1114 | unsigned long tpgt; | ||
1115 | int ret; | ||
1116 | |||
1117 | if (strstr(name, "tpgt_") != name) | ||
1118 | return ERR_PTR(-EINVAL); | ||
1119 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | ||
1120 | return ERR_PTR(-EINVAL); | ||
1121 | |||
1122 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | ||
1123 | if (!tpg) { | ||
1124 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | ||
1125 | return ERR_PTR(-ENOMEM); | ||
1126 | } | ||
1127 | tpg->lport = lport; | ||
1128 | tpg->lport_tpgt = tpgt; | ||
1129 | |||
1130 | ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops, wwn, | ||
1131 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); | ||
1132 | if (ret < 0) { | ||
1133 | kfree(tpg); | ||
1134 | return NULL; | ||
1135 | } | ||
1136 | return &tpg->se_tpg; | ||
1137 | } | ||
1138 | |||
1139 | /* | ||
1140 | * Expected to be called with struct qla_hw_data->hardware_lock held | ||
1141 | */ | ||
1142 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( | ||
1143 | scsi_qla_host_t *vha, | ||
1144 | const uint8_t *s_id) | ||
1145 | { | ||
1146 | struct qla_hw_data *ha = vha->hw; | ||
1147 | struct tcm_qla2xxx_lport *lport; | ||
1148 | struct se_node_acl *se_nacl; | ||
1149 | struct tcm_qla2xxx_nacl *nacl; | ||
1150 | u32 key; | ||
1151 | |||
1152 | lport = ha->tgt.target_lport_ptr; | ||
1153 | if (!lport) { | ||
1154 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | ||
1155 | dump_stack(); | ||
1156 | return NULL; | ||
1157 | } | ||
1158 | |||
1159 | key = (((unsigned long)s_id[0] << 16) | | ||
1160 | ((unsigned long)s_id[1] << 8) | | ||
1161 | (unsigned long)s_id[2]); | ||
1162 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); | ||
1163 | |||
1164 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | ||
1165 | if (!se_nacl) { | ||
1166 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | ||
1167 | return NULL; | ||
1168 | } | ||
1169 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | ||
1170 | se_nacl, se_nacl->initiatorname); | ||
1171 | |||
1172 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | ||
1173 | if (!nacl->qla_tgt_sess) { | ||
1174 | pr_err("Unable to locate struct qla_tgt_sess\n"); | ||
1175 | return NULL; | ||
1176 | } | ||
1177 | |||
1178 | return nacl->qla_tgt_sess; | ||
1179 | } | ||
1180 | |||
1181 | /* | ||
1182 | * Expected to be called with struct qla_hw_data->hardware_lock held | ||
1183 | */ | ||
1184 | static void tcm_qla2xxx_set_sess_by_s_id( | ||
1185 | struct tcm_qla2xxx_lport *lport, | ||
1186 | struct se_node_acl *new_se_nacl, | ||
1187 | struct tcm_qla2xxx_nacl *nacl, | ||
1188 | struct se_session *se_sess, | ||
1189 | struct qla_tgt_sess *qla_tgt_sess, | ||
1190 | uint8_t *s_id) | ||
1191 | { | ||
1192 | u32 key; | ||
1193 | void *slot; | ||
1194 | int rc; | ||
1195 | |||
1196 | key = (((unsigned long)s_id[0] << 16) | | ||
1197 | ((unsigned long)s_id[1] << 8) | | ||
1198 | (unsigned long)s_id[2]); | ||
1199 | pr_debug("set_sess_by_s_id: %06x\n", key); | ||
1200 | |||
1201 | slot = btree_lookup32(&lport->lport_fcport_map, key); | ||
1202 | if (!slot) { | ||
1203 | if (new_se_nacl) { | ||
1204 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | ||
1205 | nacl->nport_id = key; | ||
1206 | rc = btree_insert32(&lport->lport_fcport_map, key, | ||
1207 | new_se_nacl, GFP_ATOMIC); | ||
1208 | if (rc) | ||
1209 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | ||
1210 | (int)key); | ||
1211 | } else { | ||
1212 | pr_debug("Wiping nonexisting fc_port entry\n"); | ||
1213 | } | ||
1214 | |||
1215 | qla_tgt_sess->se_sess = se_sess; | ||
1216 | nacl->qla_tgt_sess = qla_tgt_sess; | ||
1217 | return; | ||
1218 | } | ||
1219 | |||
1220 | if (nacl->qla_tgt_sess) { | ||
1221 | if (new_se_nacl == NULL) { | ||
1222 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); | ||
1223 | btree_remove32(&lport->lport_fcport_map, key); | ||
1224 | nacl->qla_tgt_sess = NULL; | ||
1225 | return; | ||
1226 | } | ||
1227 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); | ||
1228 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | ||
1229 | qla_tgt_sess->se_sess = se_sess; | ||
1230 | nacl->qla_tgt_sess = qla_tgt_sess; | ||
1231 | return; | ||
1232 | } | ||
1233 | |||
1234 | if (new_se_nacl == NULL) { | ||
1235 | pr_debug("Clearing existing fc_port entry\n"); | ||
1236 | btree_remove32(&lport->lport_fcport_map, key); | ||
1237 | return; | ||
1238 | } | ||
1239 | |||
1240 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); | ||
1241 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | ||
1242 | qla_tgt_sess->se_sess = se_sess; | ||
1243 | nacl->qla_tgt_sess = qla_tgt_sess; | ||
1244 | |||
1245 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", | ||
1246 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | ||
1247 | } | ||
1248 | |||
1249 | /* | ||
1250 | * Expected to be called with struct qla_hw_data->hardware_lock held | ||
1251 | */ | ||
1252 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( | ||
1253 | scsi_qla_host_t *vha, | ||
1254 | const uint16_t loop_id) | ||
1255 | { | ||
1256 | struct qla_hw_data *ha = vha->hw; | ||
1257 | struct tcm_qla2xxx_lport *lport; | ||
1258 | struct se_node_acl *se_nacl; | ||
1259 | struct tcm_qla2xxx_nacl *nacl; | ||
1260 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | ||
1261 | |||
1262 | lport = ha->tgt.target_lport_ptr; | ||
1263 | if (!lport) { | ||
1264 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | ||
1265 | dump_stack(); | ||
1266 | return NULL; | ||
1267 | } | ||
1268 | |||
1269 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | ||
1270 | |||
1271 | fc_loopid = lport->lport_loopid_map + loop_id; | ||
1272 | se_nacl = fc_loopid->se_nacl; | ||
1273 | if (!se_nacl) { | ||
1274 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | ||
1275 | loop_id); | ||
1276 | return NULL; | ||
1277 | } | ||
1278 | |||
1279 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | ||
1280 | |||
1281 | if (!nacl->qla_tgt_sess) { | ||
1282 | pr_err("Unable to locate struct qla_tgt_sess\n"); | ||
1283 | return NULL; | ||
1284 | } | ||
1285 | |||
1286 | return nacl->qla_tgt_sess; | ||
1287 | } | ||
1288 | |||
1289 | /* | ||
1290 | * Expected to be called with struct qla_hw_data->hardware_lock held | ||
1291 | */ | ||
1292 | static void tcm_qla2xxx_set_sess_by_loop_id( | ||
1293 | struct tcm_qla2xxx_lport *lport, | ||
1294 | struct se_node_acl *new_se_nacl, | ||
1295 | struct tcm_qla2xxx_nacl *nacl, | ||
1296 | struct se_session *se_sess, | ||
1297 | struct qla_tgt_sess *qla_tgt_sess, | ||
1298 | uint16_t loop_id) | ||
1299 | { | ||
1300 | struct se_node_acl *saved_nacl; | ||
1301 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | ||
1302 | |||
1303 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | ||
1304 | |||
1305 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | ||
1306 | lport->lport_loopid_map)[loop_id]; | ||
1307 | |||
1308 | saved_nacl = fc_loopid->se_nacl; | ||
1309 | if (!saved_nacl) { | ||
1310 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | ||
1311 | fc_loopid->se_nacl = new_se_nacl; | ||
1312 | if (qla_tgt_sess->se_sess != se_sess) | ||
1313 | qla_tgt_sess->se_sess = se_sess; | ||
1314 | if (nacl->qla_tgt_sess != qla_tgt_sess) | ||
1315 | nacl->qla_tgt_sess = qla_tgt_sess; | ||
1316 | return; | ||
1317 | } | ||
1318 | |||
1319 | if (nacl->qla_tgt_sess) { | ||
1320 | if (new_se_nacl == NULL) { | ||
1321 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | ||
1322 | fc_loopid->se_nacl = NULL; | ||
1323 | nacl->qla_tgt_sess = NULL; | ||
1324 | return; | ||
1325 | } | ||
1326 | |||
1327 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | ||
1328 | fc_loopid->se_nacl = new_se_nacl; | ||
1329 | if (qla_tgt_sess->se_sess != se_sess) | ||
1330 | qla_tgt_sess->se_sess = se_sess; | ||
1331 | if (nacl->qla_tgt_sess != qla_tgt_sess) | ||
1332 | nacl->qla_tgt_sess = qla_tgt_sess; | ||
1333 | return; | ||
1334 | } | ||
1335 | |||
1336 | if (new_se_nacl == NULL) { | ||
1337 | pr_debug("Clearing fc_loopid->se_nacl\n"); | ||
1338 | fc_loopid->se_nacl = NULL; | ||
1339 | return; | ||
1340 | } | ||
1341 | |||
1342 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); | ||
1343 | fc_loopid->se_nacl = new_se_nacl; | ||
1344 | if (qla_tgt_sess->se_sess != se_sess) | ||
1345 | qla_tgt_sess->se_sess = se_sess; | ||
1346 | if (nacl->qla_tgt_sess != qla_tgt_sess) | ||
1347 | nacl->qla_tgt_sess = qla_tgt_sess; | ||
1348 | |||
1349 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", | ||
1350 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | ||
1351 | } | ||
1352 | |||
1353 | /* | ||
1354 | * Should always be called with qla_hw_data->hardware_lock held. | ||
1355 | */ | ||
1356 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | ||
1357 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) | ||
1358 | { | ||
1359 | struct se_session *se_sess = sess->se_sess; | ||
1360 | unsigned char be_sid[3]; | ||
1361 | |||
1362 | be_sid[0] = sess->s_id.b.domain; | ||
1363 | be_sid[1] = sess->s_id.b.area; | ||
1364 | be_sid[2] = sess->s_id.b.al_pa; | ||
1365 | |||
1366 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | ||
1367 | sess, be_sid); | ||
1368 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | ||
1369 | sess, sess->loop_id); | ||
1370 | } | ||
1371 | |||
1372 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) | ||
1373 | { | ||
1374 | struct qla_tgt *tgt = sess->tgt; | ||
1375 | struct qla_hw_data *ha = tgt->ha; | ||
1376 | struct se_session *se_sess; | ||
1377 | struct se_node_acl *se_nacl; | ||
1378 | struct tcm_qla2xxx_lport *lport; | ||
1379 | struct tcm_qla2xxx_nacl *nacl; | ||
1380 | |||
1381 | BUG_ON(in_interrupt()); | ||
1382 | |||
1383 | se_sess = sess->se_sess; | ||
1384 | if (!se_sess) { | ||
1385 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); | ||
1386 | dump_stack(); | ||
1387 | return; | ||
1388 | } | ||
1389 | se_nacl = se_sess->se_node_acl; | ||
1390 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | ||
1391 | |||
1392 | lport = ha->tgt.target_lport_ptr; | ||
1393 | if (!lport) { | ||
1394 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | ||
1395 | dump_stack(); | ||
1396 | return; | ||
1397 | } | ||
1398 | target_wait_for_sess_cmds(se_sess, 0); | ||
1399 | |||
1400 | transport_deregister_session_configfs(sess->se_sess); | ||
1401 | transport_deregister_session(sess->se_sess); | ||
1402 | } | ||
1403 | |||
1404 | /* | ||
1405 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | ||
1406 | * to locate struct se_node_acl | ||
1407 | */ | ||
1408 | static int tcm_qla2xxx_check_initiator_node_acl( | ||
1409 | scsi_qla_host_t *vha, | ||
1410 | unsigned char *fc_wwpn, | ||
1411 | void *qla_tgt_sess, | ||
1412 | uint8_t *s_id, | ||
1413 | uint16_t loop_id) | ||
1414 | { | ||
1415 | struct qla_hw_data *ha = vha->hw; | ||
1416 | struct tcm_qla2xxx_lport *lport; | ||
1417 | struct tcm_qla2xxx_tpg *tpg; | ||
1418 | struct tcm_qla2xxx_nacl *nacl; | ||
1419 | struct se_portal_group *se_tpg; | ||
1420 | struct se_node_acl *se_nacl; | ||
1421 | struct se_session *se_sess; | ||
1422 | struct qla_tgt_sess *sess = qla_tgt_sess; | ||
1423 | unsigned char port_name[36]; | ||
1424 | unsigned long flags; | ||
1425 | |||
1426 | lport = ha->tgt.target_lport_ptr; | ||
1427 | if (!lport) { | ||
1428 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | ||
1429 | dump_stack(); | ||
1430 | return -EINVAL; | ||
1431 | } | ||
1432 | /* | ||
1433 | * Locate the TPG=1 reference.. | ||
1434 | */ | ||
1435 | tpg = lport->tpg_1; | ||
1436 | if (!tpg) { | ||
1437 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | ||
1438 | return -EINVAL; | ||
1439 | } | ||
1440 | se_tpg = &tpg->se_tpg; | ||
1441 | |||
1442 | se_sess = transport_init_session(); | ||
1443 | if (IS_ERR(se_sess)) { | ||
1444 | pr_err("Unable to initialize struct se_session\n"); | ||
1445 | return PTR_ERR(se_sess); | ||
1446 | } | ||
1447 | /* | ||
1448 | * Format the FCP Initiator port_name into colon seperated values to | ||
1449 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | ||
1450 | */ | ||
1451 | memset(&port_name, 0, 36); | ||
1452 | snprintf(port_name, 36, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", | ||
1453 | fc_wwpn[0], fc_wwpn[1], fc_wwpn[2], fc_wwpn[3], fc_wwpn[4], | ||
1454 | fc_wwpn[5], fc_wwpn[6], fc_wwpn[7]); | ||
1455 | /* | ||
1456 | * Locate our struct se_node_acl either from an explict NodeACL created | ||
1457 | * via ConfigFS, or via running in TPG demo mode. | ||
1458 | */ | ||
1459 | se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg, | ||
1460 | port_name); | ||
1461 | if (!se_sess->se_node_acl) { | ||
1462 | transport_free_session(se_sess); | ||
1463 | return -EINVAL; | ||
1464 | } | ||
1465 | se_nacl = se_sess->se_node_acl; | ||
1466 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | ||
1467 | /* | ||
1468 | * And now setup the new se_nacl and session pointers into our HW lport | ||
1469 | * mappings for fabric S_ID and LOOP_ID. | ||
1470 | */ | ||
1471 | spin_lock_irqsave(&ha->hardware_lock, flags); | ||
1472 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, | ||
1473 | qla_tgt_sess, s_id); | ||
1474 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess, | ||
1475 | qla_tgt_sess, loop_id); | ||
1476 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | ||
1477 | /* | ||
1478 | * Finally register the new FC Nexus with TCM | ||
1479 | */ | ||
1480 | __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); | ||
1481 | |||
1482 | return 0; | ||
1483 | } | ||
1484 | |||
1485 | /* | ||
1486 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | ||
1487 | */ | ||
1488 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | ||
1489 | .handle_cmd = tcm_qla2xxx_handle_cmd, | ||
1490 | .handle_data = tcm_qla2xxx_handle_data, | ||
1491 | .handle_tmr = tcm_qla2xxx_handle_tmr, | ||
1492 | .free_cmd = tcm_qla2xxx_free_cmd, | ||
1493 | .free_mcmd = tcm_qla2xxx_free_mcmd, | ||
1494 | .free_session = tcm_qla2xxx_free_session, | ||
1495 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, | ||
1496 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | ||
1497 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | ||
1498 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | ||
1499 | .put_sess = tcm_qla2xxx_put_sess, | ||
1500 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, | ||
1501 | }; | ||
1502 | |||
1503 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | ||
1504 | { | ||
1505 | int rc; | ||
1506 | |||
1507 | rc = btree_init32(&lport->lport_fcport_map); | ||
1508 | if (rc) { | ||
1509 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | ||
1510 | return rc; | ||
1511 | } | ||
1512 | |||
1513 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | ||
1514 | 65536); | ||
1515 | if (!lport->lport_loopid_map) { | ||
1516 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | ||
1517 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | ||
1518 | btree_destroy32(&lport->lport_fcport_map); | ||
1519 | return -ENOMEM; | ||
1520 | } | ||
1521 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | ||
1522 | * 65536); | ||
1523 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | ||
1524 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | ||
1525 | return 0; | ||
1526 | } | ||
1527 | |||
1528 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha) | ||
1529 | { | ||
1530 | struct qla_hw_data *ha = vha->hw; | ||
1531 | struct tcm_qla2xxx_lport *lport; | ||
1532 | /* | ||
1533 | * Setup local pointer to vha, NPIV VP pointer (if present) and | ||
1534 | * vha->tcm_lport pointer | ||
1535 | */ | ||
1536 | lport = (struct tcm_qla2xxx_lport *)ha->tgt.target_lport_ptr; | ||
1537 | lport->qla_vha = vha; | ||
1538 | |||
1539 | return 0; | ||
1540 | } | ||
1541 | |||
1542 | static struct se_wwn *tcm_qla2xxx_make_lport( | ||
1543 | struct target_fabric_configfs *tf, | ||
1544 | struct config_group *group, | ||
1545 | const char *name) | ||
1546 | { | ||
1547 | struct tcm_qla2xxx_lport *lport; | ||
1548 | u64 wwpn; | ||
1549 | int ret = -ENODEV; | ||
1550 | |||
1551 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | ||
1552 | return ERR_PTR(-EINVAL); | ||
1553 | |||
1554 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | ||
1555 | if (!lport) { | ||
1556 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | ||
1557 | return ERR_PTR(-ENOMEM); | ||
1558 | } | ||
1559 | lport->lport_wwpn = wwpn; | ||
1560 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | ||
1561 | wwpn); | ||
1562 | |||
1563 | ret = tcm_qla2xxx_init_lport(lport); | ||
1564 | if (ret != 0) | ||
1565 | goto out; | ||
1566 | |||
1567 | ret = qlt_lport_register(&tcm_qla2xxx_template, wwpn, | ||
1568 | tcm_qla2xxx_lport_register_cb, lport); | ||
1569 | if (ret != 0) | ||
1570 | goto out_lport; | ||
1571 | |||
1572 | return &lport->lport_wwn; | ||
1573 | out_lport: | ||
1574 | vfree(lport->lport_loopid_map); | ||
1575 | btree_destroy32(&lport->lport_fcport_map); | ||
1576 | out: | ||
1577 | kfree(lport); | ||
1578 | return ERR_PTR(ret); | ||
1579 | } | ||
1580 | |||
1581 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | ||
1582 | { | ||
1583 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | ||
1584 | struct tcm_qla2xxx_lport, lport_wwn); | ||
1585 | struct scsi_qla_host *vha = lport->qla_vha; | ||
1586 | struct qla_hw_data *ha = vha->hw; | ||
1587 | struct se_node_acl *node; | ||
1588 | u32 key = 0; | ||
1589 | |||
1590 | /* | ||
1591 | * Call into qla2x_target.c LLD logic to complete the | ||
1592 | * shutdown of struct qla_tgt after the call to | ||
1593 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | ||
1594 | */ | ||
1595 | if (ha->tgt.qla_tgt && !ha->tgt.qla_tgt->tgt_stopped) | ||
1596 | qlt_stop_phase2(ha->tgt.qla_tgt); | ||
1597 | |||
1598 | qlt_lport_deregister(vha); | ||
1599 | |||
1600 | vfree(lport->lport_loopid_map); | ||
1601 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | ||
1602 | btree_remove32(&lport->lport_fcport_map, key); | ||
1603 | btree_destroy32(&lport->lport_fcport_map); | ||
1604 | kfree(lport); | ||
1605 | } | ||
1606 | |||
1607 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( | ||
1608 | struct target_fabric_configfs *tf, | ||
1609 | struct config_group *group, | ||
1610 | const char *name) | ||
1611 | { | ||
1612 | struct tcm_qla2xxx_lport *lport; | ||
1613 | u64 npiv_wwpn, npiv_wwnn; | ||
1614 | int ret; | ||
1615 | |||
1616 | if (tcm_qla2xxx_npiv_parse_wwn(name, strlen(name)+1, | ||
1617 | &npiv_wwpn, &npiv_wwnn) < 0) | ||
1618 | return ERR_PTR(-EINVAL); | ||
1619 | |||
1620 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | ||
1621 | if (!lport) { | ||
1622 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | ||
1623 | return ERR_PTR(-ENOMEM); | ||
1624 | } | ||
1625 | lport->lport_npiv_wwpn = npiv_wwpn; | ||
1626 | lport->lport_npiv_wwnn = npiv_wwnn; | ||
1627 | tcm_qla2xxx_npiv_format_wwn(&lport->lport_npiv_name[0], | ||
1628 | TCM_QLA2XXX_NAMELEN, npiv_wwpn, npiv_wwnn); | ||
1629 | |||
1630 | /* FIXME: tcm_qla2xxx_npiv_make_lport */ | ||
1631 | ret = -ENOSYS; | ||
1632 | if (ret != 0) | ||
1633 | goto out; | ||
1634 | |||
1635 | return &lport->lport_wwn; | ||
1636 | out: | ||
1637 | kfree(lport); | ||
1638 | return ERR_PTR(ret); | ||
1639 | } | ||
1640 | |||
1641 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | ||
1642 | { | ||
1643 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | ||
1644 | struct tcm_qla2xxx_lport, lport_wwn); | ||
1645 | struct scsi_qla_host *vha = lport->qla_vha; | ||
1646 | struct Scsi_Host *sh = vha->host; | ||
1647 | /* | ||
1648 | * Notify libfc that we want to release the lport->npiv_vport | ||
1649 | */ | ||
1650 | fc_vport_terminate(lport->npiv_vport); | ||
1651 | |||
1652 | scsi_host_put(sh); | ||
1653 | kfree(lport); | ||
1654 | } | ||
1655 | |||
1656 | |||
1657 | static ssize_t tcm_qla2xxx_wwn_show_attr_version( | ||
1658 | struct target_fabric_configfs *tf, | ||
1659 | char *page) | ||
1660 | { | ||
1661 | return sprintf(page, | ||
1662 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | ||
1663 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | ||
1664 | utsname()->machine); | ||
1665 | } | ||
1666 | |||
1667 | TF_WWN_ATTR_RO(tcm_qla2xxx, version); | ||
1668 | |||
1669 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | ||
1670 | &tcm_qla2xxx_wwn_version.attr, | ||
1671 | NULL, | ||
1672 | }; | ||
1673 | |||
1674 | static struct target_core_fabric_ops tcm_qla2xxx_ops = { | ||
1675 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, | ||
1676 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, | ||
1677 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, | ||
1678 | .tpg_get_tag = tcm_qla2xxx_get_tag, | ||
1679 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, | ||
1680 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, | ||
1681 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | ||
1682 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | ||
1683 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, | ||
1684 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | ||
1685 | .tpg_check_demo_mode_write_protect = | ||
1686 | tcm_qla2xxx_check_demo_write_protect, | ||
1687 | .tpg_check_prod_mode_write_protect = | ||
1688 | tcm_qla2xxx_check_prod_write_protect, | ||
1689 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true, | ||
1690 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, | ||
1691 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, | ||
1692 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, | ||
1693 | .new_cmd_map = NULL, | ||
1694 | .check_stop_free = tcm_qla2xxx_check_stop_free, | ||
1695 | .release_cmd = tcm_qla2xxx_release_cmd, | ||
1696 | .put_session = tcm_qla2xxx_put_session, | ||
1697 | .shutdown_session = tcm_qla2xxx_shutdown_session, | ||
1698 | .close_session = tcm_qla2xxx_close_session, | ||
1699 | .sess_get_index = tcm_qla2xxx_sess_get_index, | ||
1700 | .sess_get_initiator_sid = NULL, | ||
1701 | .write_pending = tcm_qla2xxx_write_pending, | ||
1702 | .write_pending_status = tcm_qla2xxx_write_pending_status, | ||
1703 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | ||
1704 | .get_task_tag = tcm_qla2xxx_get_task_tag, | ||
1705 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | ||
1706 | .queue_data_in = tcm_qla2xxx_queue_data_in, | ||
1707 | .queue_status = tcm_qla2xxx_queue_status, | ||
1708 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | ||
1709 | .get_fabric_sense_len = tcm_qla2xxx_get_fabric_sense_len, | ||
1710 | .set_fabric_sense_len = tcm_qla2xxx_set_fabric_sense_len, | ||
1711 | /* | ||
1712 | * Setup function pointers for generic logic in | ||
1713 | * target_core_fabric_configfs.c | ||
1714 | */ | ||
1715 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | ||
1716 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | ||
1717 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | ||
1718 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | ||
1719 | .fabric_post_link = NULL, | ||
1720 | .fabric_pre_unlink = NULL, | ||
1721 | .fabric_make_np = NULL, | ||
1722 | .fabric_drop_np = NULL, | ||
1723 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, | ||
1724 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, | ||
1725 | }; | ||
1726 | |||
1727 | static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { | ||
1728 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, | ||
1729 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, | ||
1730 | .tpg_get_wwn = tcm_qla2xxx_npiv_get_fabric_wwn, | ||
1731 | .tpg_get_tag = tcm_qla2xxx_get_tag, | ||
1732 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, | ||
1733 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, | ||
1734 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | ||
1735 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | ||
1736 | .tpg_check_demo_mode = tcm_qla2xxx_check_false, | ||
1737 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_true, | ||
1738 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_true, | ||
1739 | .tpg_check_prod_mode_write_protect = tcm_qla2xxx_check_false, | ||
1740 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true, | ||
1741 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, | ||
1742 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, | ||
1743 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, | ||
1744 | .release_cmd = tcm_qla2xxx_release_cmd, | ||
1745 | .put_session = tcm_qla2xxx_put_session, | ||
1746 | .shutdown_session = tcm_qla2xxx_shutdown_session, | ||
1747 | .close_session = tcm_qla2xxx_close_session, | ||
1748 | .sess_get_index = tcm_qla2xxx_sess_get_index, | ||
1749 | .sess_get_initiator_sid = NULL, | ||
1750 | .write_pending = tcm_qla2xxx_write_pending, | ||
1751 | .write_pending_status = tcm_qla2xxx_write_pending_status, | ||
1752 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | ||
1753 | .get_task_tag = tcm_qla2xxx_get_task_tag, | ||
1754 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | ||
1755 | .queue_data_in = tcm_qla2xxx_queue_data_in, | ||
1756 | .queue_status = tcm_qla2xxx_queue_status, | ||
1757 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | ||
1758 | .get_fabric_sense_len = tcm_qla2xxx_get_fabric_sense_len, | ||
1759 | .set_fabric_sense_len = tcm_qla2xxx_set_fabric_sense_len, | ||
1760 | /* | ||
1761 | * Setup function pointers for generic logic in | ||
1762 | * target_core_fabric_configfs.c | ||
1763 | */ | ||
1764 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | ||
1765 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | ||
1766 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | ||
1767 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | ||
1768 | .fabric_post_link = NULL, | ||
1769 | .fabric_pre_unlink = NULL, | ||
1770 | .fabric_make_np = NULL, | ||
1771 | .fabric_drop_np = NULL, | ||
1772 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, | ||
1773 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, | ||
1774 | }; | ||
1775 | |||
1776 | static int tcm_qla2xxx_register_configfs(void) | ||
1777 | { | ||
1778 | struct target_fabric_configfs *fabric, *npiv_fabric; | ||
1779 | int ret; | ||
1780 | |||
1781 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | ||
1782 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | ||
1783 | utsname()->machine); | ||
1784 | /* | ||
1785 | * Register the top level struct config_item_type with TCM core | ||
1786 | */ | ||
1787 | fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx"); | ||
1788 | if (IS_ERR(fabric)) { | ||
1789 | pr_err("target_fabric_configfs_init() failed\n"); | ||
1790 | return PTR_ERR(fabric); | ||
1791 | } | ||
1792 | /* | ||
1793 | * Setup fabric->tf_ops from our local tcm_qla2xxx_ops | ||
1794 | */ | ||
1795 | fabric->tf_ops = tcm_qla2xxx_ops; | ||
1796 | /* | ||
1797 | * Setup default attribute lists for various fabric->tf_cit_tmpl | ||
1798 | */ | ||
1799 | TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; | ||
1800 | TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs; | ||
1801 | TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = | ||
1802 | tcm_qla2xxx_tpg_attrib_attrs; | ||
1803 | TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; | ||
1804 | TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; | ||
1805 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; | ||
1806 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; | ||
1807 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; | ||
1808 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; | ||
1809 | /* | ||
1810 | * Register the fabric for use within TCM | ||
1811 | */ | ||
1812 | ret = target_fabric_configfs_register(fabric); | ||
1813 | if (ret < 0) { | ||
1814 | pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n"); | ||
1815 | return ret; | ||
1816 | } | ||
1817 | /* | ||
1818 | * Setup our local pointer to *fabric | ||
1819 | */ | ||
1820 | tcm_qla2xxx_fabric_configfs = fabric; | ||
1821 | pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_fabric_configfs\n"); | ||
1822 | |||
1823 | /* | ||
1824 | * Register the top level struct config_item_type for NPIV with TCM core | ||
1825 | */ | ||
1826 | npiv_fabric = target_fabric_configfs_init(THIS_MODULE, "qla2xxx_npiv"); | ||
1827 | if (IS_ERR(npiv_fabric)) { | ||
1828 | pr_err("target_fabric_configfs_init() failed\n"); | ||
1829 | ret = PTR_ERR(npiv_fabric); | ||
1830 | goto out_fabric; | ||
1831 | } | ||
1832 | /* | ||
1833 | * Setup fabric->tf_ops from our local tcm_qla2xxx_npiv_ops | ||
1834 | */ | ||
1835 | npiv_fabric->tf_ops = tcm_qla2xxx_npiv_ops; | ||
1836 | /* | ||
1837 | * Setup default attribute lists for various npiv_fabric->tf_cit_tmpl | ||
1838 | */ | ||
1839 | TF_CIT_TMPL(npiv_fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; | ||
1840 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_base_cit.ct_attrs = NULL; | ||
1841 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; | ||
1842 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_param_cit.ct_attrs = NULL; | ||
1843 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; | ||
1844 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; | ||
1845 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; | ||
1846 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; | ||
1847 | TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; | ||
1848 | /* | ||
1849 | * Register the npiv_fabric for use within TCM | ||
1850 | */ | ||
1851 | ret = target_fabric_configfs_register(npiv_fabric); | ||
1852 | if (ret < 0) { | ||
1853 | pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n"); | ||
1854 | goto out_fabric; | ||
1855 | } | ||
1856 | /* | ||
1857 | * Setup our local pointer to *npiv_fabric | ||
1858 | */ | ||
1859 | tcm_qla2xxx_npiv_fabric_configfs = npiv_fabric; | ||
1860 | pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_npiv_fabric_configfs\n"); | ||
1861 | |||
1862 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | ||
1863 | WQ_MEM_RECLAIM, 0); | ||
1864 | if (!tcm_qla2xxx_free_wq) { | ||
1865 | ret = -ENOMEM; | ||
1866 | goto out_fabric_npiv; | ||
1867 | } | ||
1868 | |||
1869 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | ||
1870 | if (!tcm_qla2xxx_cmd_wq) { | ||
1871 | ret = -ENOMEM; | ||
1872 | goto out_free_wq; | ||
1873 | } | ||
1874 | |||
1875 | return 0; | ||
1876 | |||
1877 | out_free_wq: | ||
1878 | destroy_workqueue(tcm_qla2xxx_free_wq); | ||
1879 | out_fabric_npiv: | ||
1880 | target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs); | ||
1881 | out_fabric: | ||
1882 | target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs); | ||
1883 | return ret; | ||
1884 | } | ||
1885 | |||
1886 | static void tcm_qla2xxx_deregister_configfs(void) | ||
1887 | { | ||
1888 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | ||
1889 | destroy_workqueue(tcm_qla2xxx_free_wq); | ||
1890 | |||
1891 | target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs); | ||
1892 | tcm_qla2xxx_fabric_configfs = NULL; | ||
1893 | pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_fabric_configfs\n"); | ||
1894 | |||
1895 | target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs); | ||
1896 | tcm_qla2xxx_npiv_fabric_configfs = NULL; | ||
1897 | pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_npiv_fabric_configfs\n"); | ||
1898 | } | ||
1899 | |||
1900 | static int __init tcm_qla2xxx_init(void) | ||
1901 | { | ||
1902 | int ret; | ||
1903 | |||
1904 | ret = tcm_qla2xxx_register_configfs(); | ||
1905 | if (ret < 0) | ||
1906 | return ret; | ||
1907 | |||
1908 | return 0; | ||
1909 | } | ||
1910 | |||
1911 | static void __exit tcm_qla2xxx_exit(void) | ||
1912 | { | ||
1913 | tcm_qla2xxx_deregister_configfs(); | ||
1914 | } | ||
1915 | |||
1916 | MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver"); | ||
1917 | MODULE_LICENSE("GPL"); | ||
1918 | module_init(tcm_qla2xxx_init); | ||
1919 | module_exit(tcm_qla2xxx_exit); | ||