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18#include <linux/module.h>
19#include <linux/utsname.h>
20#include <linux/vmalloc.h>
21#include <linux/list.h>
22#include <linux/slab.h>
23#include <linux/types.h>
24#include <linux/string.h>
25#include <linux/configfs.h>
26#include <linux/ctype.h>
27#include <asm/unaligned.h>
28#include <scsi/scsi_host.h>
29#include <target/target_core_base.h>
30#include <target/target_core_fabric.h>
31
32#include "qla_def.h"
33#include "qla_target.h"
34#include "tcm_qla2xxx.h"
35
36static struct workqueue_struct *tcm_qla2xxx_free_wq;
37
38
39
40
41
42
43
44static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
45{
46 const char *cp;
47 char c;
48 u32 nibble;
49 u32 byte = 0;
50 u32 pos = 0;
51 u32 err;
52
53 *wwn = 0;
54 for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
55 c = *cp;
56 if (c == '\n' && cp[1] == '\0')
57 continue;
58 if (strict && pos++ == 2 && byte++ < 7) {
59 pos = 0;
60 if (c == ':')
61 continue;
62 err = 1;
63 goto fail;
64 }
65 if (c == '\0') {
66 err = 2;
67 if (strict && byte != 8)
68 goto fail;
69 return cp - name;
70 }
71 err = 3;
72 if (isdigit(c))
73 nibble = c - '0';
74 else if (isxdigit(c) && (islower(c) || !strict))
75 nibble = tolower(c) - 'a' + 10;
76 else
77 goto fail;
78 *wwn = (*wwn << 4) | nibble;
79 }
80 err = 4;
81fail:
82 pr_debug("err %u len %zu pos %u byte %u\n",
83 err, cp - name, pos, byte);
84 return -1;
85}
86
87static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
88{
89 u8 b[8];
90
91 put_unaligned_be64(wwn, b);
92 return snprintf(buf, len,
93 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
94 b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
95}
96
97
98
99
100static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
101{
102 unsigned int i, j;
103 u8 wwn[8];
104
105 memset(wwn, 0, sizeof(wwn));
106
107
108 for (i = 0, j = 0; i < 16; i++) {
109 int value;
110
111 value = hex_to_bin(*ns++);
112 if (value >= 0)
113 j = (j << 4) | value;
114 else
115 return -EINVAL;
116
117 if (i % 2) {
118 wwn[i/2] = j & 0xff;
119 j = 0;
120 }
121 }
122
123 *nm = wwn_to_u64(wwn);
124 return 0;
125}
126
127
128
129
130
131static int tcm_qla2xxx_npiv_parse_wwn(
132 const char *name,
133 size_t count,
134 u64 *wwpn,
135 u64 *wwnn)
136{
137 unsigned int cnt = count;
138 int rc;
139
140 *wwpn = 0;
141 *wwnn = 0;
142
143
144 if (name[cnt-1] == '\n' || name[cnt-1] == 0)
145 cnt--;
146
147
148 if ((cnt != (16+1+16)) || (name[16] != ':'))
149 return -EINVAL;
150
151 rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
152 if (rc != 0)
153 return rc;
154
155 rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
156 if (rc != 0)
157 return rc;
158
159 return 0;
160}
161
162static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
163{
164 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
165 struct tcm_qla2xxx_tpg, se_tpg);
166 struct tcm_qla2xxx_lport *lport = tpg->lport;
167
168 return lport->lport_naa_name;
169}
170
171static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
172{
173 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
174 struct tcm_qla2xxx_tpg, se_tpg);
175 return tpg->lport_tpgt;
176}
177
178static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
179{
180 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
181 struct tcm_qla2xxx_tpg, se_tpg);
182
183 return tpg->tpg_attrib.generate_node_acls;
184}
185
186static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
187{
188 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
189 struct tcm_qla2xxx_tpg, se_tpg);
190
191 return tpg->tpg_attrib.cache_dynamic_acls;
192}
193
194static int tcm_qla2xxx_check_demo_write_protect(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
199 return tpg->tpg_attrib.demo_mode_write_protect;
200}
201
202static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
203{
204 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
205 struct tcm_qla2xxx_tpg, se_tpg);
206
207 return tpg->tpg_attrib.prod_mode_write_protect;
208}
209
210static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg)
211{
212 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
213 struct tcm_qla2xxx_tpg, se_tpg);
214
215 return tpg->tpg_attrib.demo_mode_login_only;
216}
217
218static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg)
219{
220 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
221 struct tcm_qla2xxx_tpg, se_tpg);
222
223 return tpg->tpg_attrib.fabric_prot_type;
224}
225
226static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
227{
228 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
229 struct tcm_qla2xxx_tpg, se_tpg);
230
231 return tpg->lport_tpgt;
232}
233
234static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
235{
236 struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
237 struct qla_tgt_mgmt_cmd, free_work);
238
239 transport_generic_free_cmd(&mcmd->se_cmd, 0);
240}
241
242
243
244
245
246
247static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
248{
249 INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
250 queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
251}
252
253static void tcm_qla2xxx_complete_free(struct work_struct *work)
254{
255 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
256
257 cmd->cmd_in_wq = 0;
258
259 WARN_ON(cmd->trc_flags & TRC_CMD_FREE);
260
261
262 cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
263 cmd->trc_flags |= TRC_CMD_FREE;
264 cmd->cmd_sent_to_fw = 0;
265
266 transport_generic_free_cmd(&cmd->se_cmd, 0);
267}
268
269
270
271
272
273
274static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
275{
276 cmd->qpair->tgt_counters.core_qla_free_cmd++;
277 cmd->cmd_in_wq = 1;
278
279 WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
280 cmd->trc_flags |= TRC_CMD_DONE;
281
282 INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
283 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
284}
285
286
287
288
289static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
290{
291 struct qla_tgt_cmd *cmd;
292
293 if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) {
294 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
295 cmd->trc_flags |= TRC_CMD_CHK_STOP;
296 }
297
298 return target_put_sess_cmd(se_cmd);
299}
300
301
302
303
304static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
305{
306 struct qla_tgt_cmd *cmd;
307
308 if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
309 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
310 struct qla_tgt_mgmt_cmd, se_cmd);
311 qlt_free_mcmd(mcmd);
312 return;
313 }
314 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
315
316 if (WARN_ON(cmd->cmd_sent_to_fw))
317 return;
318
319 qlt_free_cmd(cmd);
320}
321
322static void tcm_qla2xxx_release_session(struct kref *kref)
323{
324 struct fc_port *sess = container_of(kref,
325 struct fc_port, sess_kref);
326
327 qlt_unreg_sess(sess);
328}
329
330static void tcm_qla2xxx_put_sess(struct fc_port *sess)
331{
332 if (!sess)
333 return;
334
335 kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
336}
337
338static void tcm_qla2xxx_close_session(struct se_session *se_sess)
339{
340 struct fc_port *sess = se_sess->fabric_sess_ptr;
341 struct scsi_qla_host *vha;
342 unsigned long flags;
343
344 BUG_ON(!sess);
345 vha = sess->vha;
346
347 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
348 target_sess_cmd_list_set_waiting(se_sess);
349 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
350
351 tcm_qla2xxx_put_sess(sess);
352}
353
354static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
355{
356 return 0;
357}
358
359static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
360{
361 struct qla_tgt_cmd *cmd = container_of(se_cmd,
362 struct qla_tgt_cmd, se_cmd);
363
364 if (cmd->aborted) {
365
366
367
368
369 pr_debug("write_pending aborted cmd[%p] refcount %d "
370 "transport_state %x, t_state %x, se_cmd_flags %x\n",
371 cmd, kref_read(&cmd->se_cmd.cmd_kref),
372 cmd->se_cmd.transport_state,
373 cmd->se_cmd.t_state,
374 cmd->se_cmd.se_cmd_flags);
375 transport_generic_request_failure(&cmd->se_cmd,
376 TCM_CHECK_CONDITION_ABORT_CMD);
377 return 0;
378 }
379 cmd->trc_flags |= TRC_XFR_RDY;
380 cmd->bufflen = se_cmd->data_length;
381 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
382
383 cmd->sg_cnt = se_cmd->t_data_nents;
384 cmd->sg = se_cmd->t_data_sg;
385
386 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
387 cmd->prot_sg = se_cmd->t_prot_sg;
388 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
389 se_cmd->pi_err = 0;
390
391
392
393
394
395 return qlt_rdy_to_xfer(cmd);
396}
397
398static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
399{
400 return;
401}
402
403static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
404{
405 if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
406 struct qla_tgt_cmd *cmd = container_of(se_cmd,
407 struct qla_tgt_cmd, se_cmd);
408 return cmd->state;
409 }
410
411 return 0;
412}
413
414
415
416
417static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
418 unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
419 int data_dir, int bidi)
420{
421 struct se_cmd *se_cmd = &cmd->se_cmd;
422 struct se_session *se_sess;
423 struct fc_port *sess;
424#ifdef CONFIG_TCM_QLA2XXX_DEBUG
425 struct se_portal_group *se_tpg;
426 struct tcm_qla2xxx_tpg *tpg;
427#endif
428 int flags = TARGET_SCF_ACK_KREF;
429
430 if (bidi)
431 flags |= TARGET_SCF_BIDI_OP;
432
433 if (se_cmd->cpuid != WORK_CPU_UNBOUND)
434 flags |= TARGET_SCF_USE_CPUID;
435
436 sess = cmd->sess;
437 if (!sess) {
438 pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
439 return -EINVAL;
440 }
441
442 se_sess = sess->se_sess;
443 if (!se_sess) {
444 pr_err("Unable to locate active struct se_session\n");
445 return -EINVAL;
446 }
447
448#ifdef CONFIG_TCM_QLA2XXX_DEBUG
449 se_tpg = se_sess->se_tpg;
450 tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
451 if (unlikely(tpg->tpg_attrib.jam_host)) {
452
453 return 0;
454 }
455#endif
456
457 cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
458 return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
459 cmd->unpacked_lun, data_length, fcp_task_attr,
460 data_dir, flags);
461}
462
463static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
464{
465 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
466
467
468
469
470
471 cmd->cmd_in_wq = 0;
472 cmd->cmd_sent_to_fw = 0;
473 if (cmd->aborted) {
474 transport_generic_request_failure(&cmd->se_cmd,
475 TCM_CHECK_CONDITION_ABORT_CMD);
476 return;
477 }
478
479 cmd->qpair->tgt_counters.qla_core_ret_ctio++;
480 if (!cmd->write_data_transferred) {
481 switch (cmd->dif_err_code) {
482 case DIF_ERR_GRD:
483 cmd->se_cmd.pi_err =
484 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
485 break;
486 case DIF_ERR_REF:
487 cmd->se_cmd.pi_err =
488 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
489 break;
490 case DIF_ERR_APP:
491 cmd->se_cmd.pi_err =
492 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
493 break;
494 case DIF_ERR_NONE:
495 default:
496 break;
497 }
498
499 if (cmd->se_cmd.pi_err)
500 transport_generic_request_failure(&cmd->se_cmd,
501 cmd->se_cmd.pi_err);
502 else
503 transport_generic_request_failure(&cmd->se_cmd,
504 TCM_CHECK_CONDITION_ABORT_CMD);
505
506 return;
507 }
508
509 return target_execute_cmd(&cmd->se_cmd);
510}
511
512
513
514
515static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
516{
517 cmd->trc_flags |= TRC_DATA_IN;
518 cmd->cmd_in_wq = 1;
519 INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
520 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
521}
522
523static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
524{
525 return 0;
526}
527
528static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
529 uint16_t *pfw_prot_opts)
530{
531 struct se_cmd *se_cmd = &cmd->se_cmd;
532
533 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
534 *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
535
536 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
537 *pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
538
539 return 0;
540}
541
542
543
544
545static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
546 uint16_t tmr_func, uint32_t tag)
547{
548 struct fc_port *sess = mcmd->sess;
549 struct se_cmd *se_cmd = &mcmd->se_cmd;
550 int transl_tmr_func = 0;
551 int flags = TARGET_SCF_ACK_KREF;
552
553 switch (tmr_func) {
554 case QLA_TGT_ABTS:
555 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
556 transl_tmr_func = TMR_ABORT_TASK;
557 flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG;
558 break;
559 case QLA_TGT_2G_ABORT_TASK:
560 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
561 transl_tmr_func = TMR_ABORT_TASK;
562 break;
563 case QLA_TGT_CLEAR_ACA:
564 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
565 transl_tmr_func = TMR_CLEAR_ACA;
566 break;
567 case QLA_TGT_TARGET_RESET:
568 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
569 transl_tmr_func = TMR_TARGET_WARM_RESET;
570 break;
571 case QLA_TGT_LUN_RESET:
572 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
573 transl_tmr_func = TMR_LUN_RESET;
574 break;
575 case QLA_TGT_CLEAR_TS:
576 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
577 transl_tmr_func = TMR_CLEAR_TASK_SET;
578 break;
579 case QLA_TGT_ABORT_TS:
580 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
581 transl_tmr_func = TMR_ABORT_TASK_SET;
582 break;
583 default:
584 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
585 sess->vha->host_no, tmr_func);
586 return -ENOSYS;
587 }
588
589 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
590 transl_tmr_func, GFP_ATOMIC, tag, flags);
591}
592
593static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess,
594 uint64_t tag)
595{
596 struct qla_tgt_cmd *cmd = NULL;
597 struct se_cmd *secmd;
598 unsigned long flags;
599
600 if (!sess->se_sess)
601 return NULL;
602
603 spin_lock_irqsave(&sess->se_sess->sess_cmd_lock, flags);
604 list_for_each_entry(secmd, &sess->se_sess->sess_cmd_list, se_cmd_list) {
605
606 if (secmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
607 continue;
608
609 if (secmd->tag == tag) {
610 cmd = container_of(secmd, struct qla_tgt_cmd, se_cmd);
611 break;
612 }
613 }
614 spin_unlock_irqrestore(&sess->se_sess->sess_cmd_lock, flags);
615
616 return cmd;
617}
618
619static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
620{
621 struct qla_tgt_cmd *cmd = container_of(se_cmd,
622 struct qla_tgt_cmd, se_cmd);
623
624 if (cmd->aborted) {
625
626
627
628
629 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
630 "transport_state %x, t_state %x, se_cmd_flags %x\n",
631 cmd, kref_read(&cmd->se_cmd.cmd_kref),
632 cmd->se_cmd.transport_state,
633 cmd->se_cmd.t_state,
634 cmd->se_cmd.se_cmd_flags);
635 return 0;
636 }
637
638 cmd->trc_flags |= TRC_XMIT_DATA;
639 cmd->bufflen = se_cmd->data_length;
640 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
641
642 cmd->sg_cnt = se_cmd->t_data_nents;
643 cmd->sg = se_cmd->t_data_sg;
644 cmd->offset = 0;
645
646 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
647 cmd->prot_sg = se_cmd->t_prot_sg;
648 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
649 se_cmd->pi_err = 0;
650
651
652
653
654 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
655 se_cmd->scsi_status);
656}
657
658static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
659{
660 struct qla_tgt_cmd *cmd = container_of(se_cmd,
661 struct qla_tgt_cmd, se_cmd);
662 int xmit_type = QLA_TGT_XMIT_STATUS;
663
664 if (cmd->aborted) {
665
666
667
668
669
670 pr_debug(
671 "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
672 cmd, kref_read(&cmd->se_cmd.cmd_kref),
673 cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
674 cmd->se_cmd.se_cmd_flags);
675 return 0;
676 }
677 cmd->bufflen = se_cmd->data_length;
678 cmd->sg = NULL;
679 cmd->sg_cnt = 0;
680 cmd->offset = 0;
681 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
682 cmd->trc_flags |= TRC_XMIT_STATUS;
683
684 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
685
686
687
688
689 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
690 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
691 se_cmd->residual_count = 0;
692 }
693 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
694 se_cmd->residual_count += se_cmd->data_length;
695
696 cmd->bufflen = 0;
697 }
698
699
700
701 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
702}
703
704static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
705{
706 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
707 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
708 struct qla_tgt_mgmt_cmd, se_cmd);
709
710 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
711 mcmd, se_tmr->function, se_tmr->response);
712
713
714
715
716 switch (se_tmr->response) {
717 case TMR_FUNCTION_COMPLETE:
718 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
719 break;
720 case TMR_TASK_DOES_NOT_EXIST:
721 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
722 break;
723 case TMR_FUNCTION_REJECTED:
724 mcmd->fc_tm_rsp = FC_TM_REJECT;
725 break;
726 case TMR_LUN_DOES_NOT_EXIST:
727 default:
728 mcmd->fc_tm_rsp = FC_TM_FAILED;
729 break;
730 }
731
732
733
734
735 qlt_xmit_tm_rsp(mcmd);
736}
737
738static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
739{
740 struct qla_tgt_cmd *cmd = container_of(se_cmd,
741 struct qla_tgt_cmd, se_cmd);
742
743 if (qlt_abort_cmd(cmd))
744 return;
745}
746
747static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
748 struct tcm_qla2xxx_nacl *, struct fc_port *);
749
750
751
752static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
753{
754 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
755 struct se_portal_group *se_tpg = se_nacl->se_tpg;
756 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
757 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
758 struct tcm_qla2xxx_lport, lport_wwn);
759 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
760 struct tcm_qla2xxx_nacl, se_node_acl);
761 void *node;
762
763 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
764
765 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
766 if (WARN_ON(node && (node != se_nacl))) {
767
768
769
770
771
772
773 btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
774 node, GFP_ATOMIC);
775 }
776
777 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
778 se_nacl, nacl->nport_wwnn, nacl->nport_id);
779
780
781
782
783
784
785
786
787
788 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
789}
790
791static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
792{
793 target_sess_cmd_list_set_waiting(sess->se_sess);
794}
795
796static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
797 const char *name)
798{
799 struct tcm_qla2xxx_nacl *nacl =
800 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
801 u64 wwnn;
802
803 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
804 return -EINVAL;
805
806 nacl->nport_wwnn = wwnn;
807 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
808
809 return 0;
810}
811
812
813
814#define DEF_QLA_TPG_ATTRIB(name) \
815 \
816static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
817 struct config_item *item, char *page) \
818{ \
819 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
820 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
821 struct tcm_qla2xxx_tpg, se_tpg); \
822 \
823 return sprintf(page, "%u\n", tpg->tpg_attrib.name); \
824} \
825 \
826static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
827 struct config_item *item, const char *page, size_t count) \
828{ \
829 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
830 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
831 struct tcm_qla2xxx_tpg, se_tpg); \
832 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
833 unsigned long val; \
834 int ret; \
835 \
836 ret = kstrtoul(page, 0, &val); \
837 if (ret < 0) { \
838 pr_err("kstrtoul() failed with" \
839 " ret: %d\n", ret); \
840 return -EINVAL; \
841 } \
842 \
843 if ((val != 0) && (val != 1)) { \
844 pr_err("Illegal boolean value %lu\n", val); \
845 return -EINVAL; \
846 } \
847 \
848 a->name = val; \
849 \
850 return count; \
851} \
852CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
853
854DEF_QLA_TPG_ATTRIB(generate_node_acls);
855DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
856DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
857DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
858DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
859#ifdef CONFIG_TCM_QLA2XXX_DEBUG
860DEF_QLA_TPG_ATTRIB(jam_host);
861#endif
862
863static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
864 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
865 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
866 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
867 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
868 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
869#ifdef CONFIG_TCM_QLA2XXX_DEBUG
870 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
871#endif
872 NULL,
873};
874
875
876
877static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
878 char *page)
879{
880 struct se_portal_group *se_tpg = to_tpg(item);
881 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
882 struct tcm_qla2xxx_tpg, se_tpg);
883
884 return snprintf(page, PAGE_SIZE, "%d\n",
885 atomic_read(&tpg->lport_tpg_enabled));
886}
887
888static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
889 const char *page, size_t count)
890{
891 struct se_portal_group *se_tpg = to_tpg(item);
892 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
893 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
894 struct tcm_qla2xxx_lport, lport_wwn);
895 struct scsi_qla_host *vha = lport->qla_vha;
896 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
897 struct tcm_qla2xxx_tpg, se_tpg);
898 unsigned long op;
899 int rc;
900
901 rc = kstrtoul(page, 0, &op);
902 if (rc < 0) {
903 pr_err("kstrtoul() returned %d\n", rc);
904 return -EINVAL;
905 }
906 if ((op != 1) && (op != 0)) {
907 pr_err("Illegal value for tpg_enable: %lu\n", op);
908 return -EINVAL;
909 }
910 if (op) {
911 if (atomic_read(&tpg->lport_tpg_enabled))
912 return -EEXIST;
913
914 atomic_set(&tpg->lport_tpg_enabled, 1);
915 qlt_enable_vha(vha);
916 } else {
917 if (!atomic_read(&tpg->lport_tpg_enabled))
918 return count;
919
920 atomic_set(&tpg->lport_tpg_enabled, 0);
921 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
922 }
923
924 return count;
925}
926
927static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
928 char *page)
929{
930 return target_show_dynamic_sessions(to_tpg(item), page);
931}
932
933static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
934 const char *page, size_t count)
935{
936 struct se_portal_group *se_tpg = to_tpg(item);
937 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
938 struct tcm_qla2xxx_tpg, se_tpg);
939 unsigned long val;
940 int ret = kstrtoul(page, 0, &val);
941
942 if (ret) {
943 pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
944 return ret;
945 }
946 if (val != 0 && val != 1 && val != 3) {
947 pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
948 return -EINVAL;
949 }
950 tpg->tpg_attrib.fabric_prot_type = val;
951
952 return count;
953}
954
955static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
956 char *page)
957{
958 struct se_portal_group *se_tpg = to_tpg(item);
959 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
960 struct tcm_qla2xxx_tpg, se_tpg);
961
962 return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
963}
964
965CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable);
966CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
967CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
968
969static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
970 &tcm_qla2xxx_tpg_attr_enable,
971 &tcm_qla2xxx_tpg_attr_dynamic_sessions,
972 &tcm_qla2xxx_tpg_attr_fabric_prot_type,
973 NULL,
974};
975
976static struct se_portal_group *tcm_qla2xxx_make_tpg(struct se_wwn *wwn,
977 const char *name)
978{
979 struct tcm_qla2xxx_lport *lport = container_of(wwn,
980 struct tcm_qla2xxx_lport, lport_wwn);
981 struct tcm_qla2xxx_tpg *tpg;
982 unsigned long tpgt;
983 int ret;
984
985 if (strstr(name, "tpgt_") != name)
986 return ERR_PTR(-EINVAL);
987 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
988 return ERR_PTR(-EINVAL);
989
990 if ((tpgt != 1)) {
991 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
992 return ERR_PTR(-ENOSYS);
993 }
994
995 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
996 if (!tpg) {
997 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
998 return ERR_PTR(-ENOMEM);
999 }
1000 tpg->lport = lport;
1001 tpg->lport_tpgt = tpgt;
1002
1003
1004
1005
1006 tpg->tpg_attrib.generate_node_acls = 1;
1007 tpg->tpg_attrib.demo_mode_write_protect = 1;
1008 tpg->tpg_attrib.cache_dynamic_acls = 1;
1009 tpg->tpg_attrib.demo_mode_login_only = 1;
1010 tpg->tpg_attrib.jam_host = 0;
1011
1012 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1013 if (ret < 0) {
1014 kfree(tpg);
1015 return NULL;
1016 }
1017
1018 lport->tpg_1 = tpg;
1019
1020 return &tpg->se_tpg;
1021}
1022
1023static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1024{
1025 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1026 struct tcm_qla2xxx_tpg, se_tpg);
1027 struct tcm_qla2xxx_lport *lport = tpg->lport;
1028 struct scsi_qla_host *vha = lport->qla_vha;
1029
1030
1031
1032
1033 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1034 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1035
1036 core_tpg_deregister(se_tpg);
1037
1038
1039
1040 lport->tpg_1 = NULL;
1041 kfree(tpg);
1042}
1043
1044static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1045 char *page)
1046{
1047 return tcm_qla2xxx_tpg_enable_show(item, page);
1048}
1049
1050static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1051 const char *page, size_t count)
1052{
1053 struct se_portal_group *se_tpg = to_tpg(item);
1054 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1055 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1056 struct tcm_qla2xxx_lport, lport_wwn);
1057 struct scsi_qla_host *vha = lport->qla_vha;
1058 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1059 struct tcm_qla2xxx_tpg, se_tpg);
1060 unsigned long op;
1061 int rc;
1062
1063 rc = kstrtoul(page, 0, &op);
1064 if (rc < 0) {
1065 pr_err("kstrtoul() returned %d\n", rc);
1066 return -EINVAL;
1067 }
1068 if ((op != 1) && (op != 0)) {
1069 pr_err("Illegal value for tpg_enable: %lu\n", op);
1070 return -EINVAL;
1071 }
1072 if (op) {
1073 if (atomic_read(&tpg->lport_tpg_enabled))
1074 return -EEXIST;
1075
1076 atomic_set(&tpg->lport_tpg_enabled, 1);
1077 qlt_enable_vha(vha);
1078 } else {
1079 if (!atomic_read(&tpg->lport_tpg_enabled))
1080 return count;
1081
1082 atomic_set(&tpg->lport_tpg_enabled, 0);
1083 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1084 }
1085
1086 return count;
1087}
1088
1089CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1090
1091static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1092 &tcm_qla2xxx_npiv_tpg_attr_enable,
1093 NULL,
1094};
1095
1096static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(struct se_wwn *wwn,
1097 const char *name)
1098{
1099 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1100 struct tcm_qla2xxx_lport, lport_wwn);
1101 struct tcm_qla2xxx_tpg *tpg;
1102 unsigned long tpgt;
1103 int ret;
1104
1105 if (strstr(name, "tpgt_") != name)
1106 return ERR_PTR(-EINVAL);
1107 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1108 return ERR_PTR(-EINVAL);
1109
1110 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1111 if (!tpg) {
1112 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1113 return ERR_PTR(-ENOMEM);
1114 }
1115 tpg->lport = lport;
1116 tpg->lport_tpgt = tpgt;
1117
1118
1119
1120
1121
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;
1126
1127 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1128 if (ret < 0) {
1129 kfree(tpg);
1130 return NULL;
1131 }
1132 lport->tpg_1 = tpg;
1133 return &tpg->se_tpg;
1134}
1135
1136
1137
1138
1139static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(
1140 scsi_qla_host_t *vha,
1141 const uint8_t *s_id)
1142{
1143 struct tcm_qla2xxx_lport *lport;
1144 struct se_node_acl *se_nacl;
1145 struct tcm_qla2xxx_nacl *nacl;
1146 u32 key;
1147
1148 lport = vha->vha_tgt.target_lport_ptr;
1149 if (!lport) {
1150 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1151 dump_stack();
1152 return NULL;
1153 }
1154
1155 key = sid_to_key(s_id);
1156 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1157
1158 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1159 if (!se_nacl) {
1160 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1161 return NULL;
1162 }
1163 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1164 se_nacl, se_nacl->initiatorname);
1165
1166 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1167 if (!nacl->fc_port) {
1168 pr_err("Unable to locate struct fc_port\n");
1169 return NULL;
1170 }
1171
1172 return nacl->fc_port;
1173}
1174
1175
1176
1177
1178static void tcm_qla2xxx_set_sess_by_s_id(
1179 struct tcm_qla2xxx_lport *lport,
1180 struct se_node_acl *new_se_nacl,
1181 struct tcm_qla2xxx_nacl *nacl,
1182 struct se_session *se_sess,
1183 struct fc_port *fc_port,
1184 uint8_t *s_id)
1185{
1186 u32 key;
1187 void *slot;
1188 int rc;
1189
1190 key = sid_to_key(s_id);
1191 pr_debug("set_sess_by_s_id: %06x\n", key);
1192
1193 slot = btree_lookup32(&lport->lport_fcport_map, key);
1194 if (!slot) {
1195 if (new_se_nacl) {
1196 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1197 nacl->nport_id = key;
1198 rc = btree_insert32(&lport->lport_fcport_map, key,
1199 new_se_nacl, GFP_ATOMIC);
1200 if (rc)
1201 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1202 (int)key);
1203 } else {
1204 pr_debug("Wiping nonexisting fc_port entry\n");
1205 }
1206
1207 fc_port->se_sess = se_sess;
1208 nacl->fc_port = fc_port;
1209 return;
1210 }
1211
1212 if (nacl->fc_port) {
1213 if (new_se_nacl == NULL) {
1214 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1215 btree_remove32(&lport->lport_fcport_map, key);
1216 nacl->fc_port = NULL;
1217 return;
1218 }
1219 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1220 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1221 fc_port->se_sess = se_sess;
1222 nacl->fc_port = fc_port;
1223 return;
1224 }
1225
1226 if (new_se_nacl == NULL) {
1227 pr_debug("Clearing existing fc_port entry\n");
1228 btree_remove32(&lport->lport_fcport_map, key);
1229 return;
1230 }
1231
1232 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1233 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1234 fc_port->se_sess = se_sess;
1235 nacl->fc_port = fc_port;
1236
1237 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1238 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1239}
1240
1241
1242
1243
1244static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1245 scsi_qla_host_t *vha,
1246 const uint16_t loop_id)
1247{
1248 struct tcm_qla2xxx_lport *lport;
1249 struct se_node_acl *se_nacl;
1250 struct tcm_qla2xxx_nacl *nacl;
1251 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1252
1253 lport = vha->vha_tgt.target_lport_ptr;
1254 if (!lport) {
1255 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1256 dump_stack();
1257 return NULL;
1258 }
1259
1260 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1261
1262 fc_loopid = lport->lport_loopid_map + loop_id;
1263 se_nacl = fc_loopid->se_nacl;
1264 if (!se_nacl) {
1265 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1266 loop_id);
1267 return NULL;
1268 }
1269
1270 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1271
1272 if (!nacl->fc_port) {
1273 pr_err("Unable to locate struct fc_port\n");
1274 return NULL;
1275 }
1276
1277 return nacl->fc_port;
1278}
1279
1280
1281
1282
1283static void tcm_qla2xxx_set_sess_by_loop_id(
1284 struct tcm_qla2xxx_lport *lport,
1285 struct se_node_acl *new_se_nacl,
1286 struct tcm_qla2xxx_nacl *nacl,
1287 struct se_session *se_sess,
1288 struct fc_port *fc_port,
1289 uint16_t loop_id)
1290{
1291 struct se_node_acl *saved_nacl;
1292 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1293
1294 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1295
1296 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1297 lport->lport_loopid_map)[loop_id];
1298
1299 saved_nacl = fc_loopid->se_nacl;
1300 if (!saved_nacl) {
1301 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1302 fc_loopid->se_nacl = new_se_nacl;
1303 if (fc_port->se_sess != se_sess)
1304 fc_port->se_sess = se_sess;
1305 if (nacl->fc_port != fc_port)
1306 nacl->fc_port = fc_port;
1307 return;
1308 }
1309
1310 if (nacl->fc_port) {
1311 if (new_se_nacl == NULL) {
1312 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1313 fc_loopid->se_nacl = NULL;
1314 nacl->fc_port = NULL;
1315 return;
1316 }
1317
1318 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1319 fc_loopid->se_nacl = new_se_nacl;
1320 if (fc_port->se_sess != se_sess)
1321 fc_port->se_sess = se_sess;
1322 if (nacl->fc_port != fc_port)
1323 nacl->fc_port = fc_port;
1324 return;
1325 }
1326
1327 if (new_se_nacl == NULL) {
1328 pr_debug("Clearing fc_loopid->se_nacl\n");
1329 fc_loopid->se_nacl = NULL;
1330 return;
1331 }
1332
1333 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1334 fc_loopid->se_nacl = new_se_nacl;
1335 if (fc_port->se_sess != se_sess)
1336 fc_port->se_sess = se_sess;
1337 if (nacl->fc_port != fc_port)
1338 nacl->fc_port = fc_port;
1339
1340 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1341 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1342}
1343
1344
1345
1346
1347static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1348 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1349{
1350 struct se_session *se_sess = sess->se_sess;
1351 unsigned char be_sid[3];
1352
1353 be_sid[0] = sess->d_id.b.domain;
1354 be_sid[1] = sess->d_id.b.area;
1355 be_sid[2] = sess->d_id.b.al_pa;
1356
1357 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1358 sess, be_sid);
1359 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1360 sess, sess->loop_id);
1361}
1362
1363static void tcm_qla2xxx_free_session(struct fc_port *sess)
1364{
1365 struct qla_tgt *tgt = sess->tgt;
1366 struct qla_hw_data *ha = tgt->ha;
1367 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1368 struct se_session *se_sess;
1369 struct tcm_qla2xxx_lport *lport;
1370
1371 BUG_ON(in_interrupt());
1372
1373 se_sess = sess->se_sess;
1374 if (!se_sess) {
1375 pr_err("struct fc_port->se_sess is NULL\n");
1376 dump_stack();
1377 return;
1378 }
1379
1380 lport = vha->vha_tgt.target_lport_ptr;
1381 if (!lport) {
1382 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1383 dump_stack();
1384 return;
1385 }
1386 target_wait_for_sess_cmds(se_sess);
1387
1388 target_remove_session(se_sess);
1389}
1390
1391static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
1392 struct se_session *se_sess, void *p)
1393{
1394 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1395 struct tcm_qla2xxx_tpg, se_tpg);
1396 struct tcm_qla2xxx_lport *lport = tpg->lport;
1397 struct qla_hw_data *ha = lport->qla_vha->hw;
1398 struct se_node_acl *se_nacl = se_sess->se_node_acl;
1399 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1400 struct tcm_qla2xxx_nacl, se_node_acl);
1401 struct fc_port *qlat_sess = p;
1402 uint16_t loop_id = qlat_sess->loop_id;
1403 unsigned long flags;
1404 unsigned char be_sid[3];
1405
1406 be_sid[0] = qlat_sess->d_id.b.domain;
1407 be_sid[1] = qlat_sess->d_id.b.area;
1408 be_sid[2] = qlat_sess->d_id.b.al_pa;
1409
1410
1411
1412
1413
1414 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1415 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl,
1416 se_sess, qlat_sess, be_sid);
1417 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
1418 se_sess, qlat_sess, loop_id);
1419 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1420
1421 return 0;
1422}
1423
1424
1425
1426
1427
1428static int tcm_qla2xxx_check_initiator_node_acl(
1429 scsi_qla_host_t *vha,
1430 unsigned char *fc_wwpn,
1431 struct fc_port *qlat_sess)
1432{
1433 struct qla_hw_data *ha = vha->hw;
1434 struct tcm_qla2xxx_lport *lport;
1435 struct tcm_qla2xxx_tpg *tpg;
1436 struct se_session *se_sess;
1437 unsigned char port_name[36];
1438 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1439 TCM_QLA2XXX_DEFAULT_TAGS;
1440
1441 lport = vha->vha_tgt.target_lport_ptr;
1442 if (!lport) {
1443 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1444 dump_stack();
1445 return -EINVAL;
1446 }
1447
1448
1449
1450 tpg = lport->tpg_1;
1451 if (!tpg) {
1452 pr_err("Unable to locate struct tcm_qla2xxx_lport->tpg_1\n");
1453 return -EINVAL;
1454 }
1455
1456
1457
1458
1459 memset(&port_name, 0, 36);
1460 snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
1461
1462
1463
1464
1465 se_sess = target_setup_session(&tpg->se_tpg, num_tags,
1466 sizeof(struct qla_tgt_cmd),
1467 TARGET_PROT_ALL, port_name,
1468 qlat_sess, tcm_qla2xxx_session_cb);
1469 if (IS_ERR(se_sess))
1470 return PTR_ERR(se_sess);
1471
1472 return 0;
1473}
1474
1475static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1476 uint16_t loop_id, bool conf_compl_supported)
1477{
1478 struct qla_tgt *tgt = sess->tgt;
1479 struct qla_hw_data *ha = tgt->ha;
1480 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1481 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1482 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1483 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1484 struct tcm_qla2xxx_nacl, se_node_acl);
1485 u32 key;
1486
1487
1488 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1489 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1490 sess, sess->port_name,
1491 sess->loop_id, loop_id, sess->d_id.b.domain,
1492 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1493 s_id.b.area, s_id.b.al_pa);
1494
1495 if (sess->loop_id != loop_id) {
1496
1497
1498
1499
1500
1501
1502
1503
1504 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1505 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1506
1507 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1508
1509 sess->loop_id = loop_id;
1510 }
1511
1512 if (sess->d_id.b24 != s_id.b24) {
1513 key = (((u32) sess->d_id.b.domain << 16) |
1514 ((u32) sess->d_id.b.area << 8) |
1515 ((u32) sess->d_id.b.al_pa));
1516
1517 if (btree_lookup32(&lport->lport_fcport_map, key))
1518 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1519 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1520 sess->d_id.b.domain, sess->d_id.b.area,
1521 sess->d_id.b.al_pa);
1522 else
1523 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1524 sess->d_id.b.domain, sess->d_id.b.area,
1525 sess->d_id.b.al_pa);
1526
1527 key = (((u32) s_id.b.domain << 16) |
1528 ((u32) s_id.b.area << 8) |
1529 ((u32) s_id.b.al_pa));
1530
1531 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1532 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1533 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1534 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1535 } else {
1536 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1537 GFP_ATOMIC);
1538 }
1539
1540 sess->d_id = s_id;
1541 nacl->nport_id = key;
1542 }
1543
1544 sess->conf_compl_supported = conf_compl_supported;
1545
1546}
1547
1548
1549
1550
1551static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1552 .find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag,
1553 .handle_cmd = tcm_qla2xxx_handle_cmd,
1554 .handle_data = tcm_qla2xxx_handle_data,
1555 .handle_tmr = tcm_qla2xxx_handle_tmr,
1556 .free_cmd = tcm_qla2xxx_free_cmd,
1557 .free_mcmd = tcm_qla2xxx_free_mcmd,
1558 .free_session = tcm_qla2xxx_free_session,
1559 .update_sess = tcm_qla2xxx_update_sess,
1560 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1561 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1562 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1563 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1564 .put_sess = tcm_qla2xxx_put_sess,
1565 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1566 .get_dif_tags = tcm_qla2xxx_dif_tags,
1567 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1568};
1569
1570static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1571{
1572 int rc;
1573
1574 rc = btree_init32(&lport->lport_fcport_map);
1575 if (rc) {
1576 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1577 return rc;
1578 }
1579
1580 lport->lport_loopid_map =
1581 vzalloc(array_size(65536,
1582 sizeof(struct tcm_qla2xxx_fc_loopid)));
1583 if (!lport->lport_loopid_map) {
1584 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1585 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1586 btree_destroy32(&lport->lport_fcport_map);
1587 return -ENOMEM;
1588 }
1589 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1590 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1591 return 0;
1592}
1593
1594static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1595 void *target_lport_ptr,
1596 u64 npiv_wwpn, u64 npiv_wwnn)
1597{
1598 struct qla_hw_data *ha = vha->hw;
1599 struct tcm_qla2xxx_lport *lport =
1600 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1601
1602
1603
1604 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1605 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1606 lport->qla_vha = vha;
1607
1608 return 0;
1609}
1610
1611static struct se_wwn *tcm_qla2xxx_make_lport(
1612 struct target_fabric_configfs *tf,
1613 struct config_group *group,
1614 const char *name)
1615{
1616 struct tcm_qla2xxx_lport *lport;
1617 u64 wwpn;
1618 int ret = -ENODEV;
1619
1620 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
1621 return ERR_PTR(-EINVAL);
1622
1623 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1624 if (!lport) {
1625 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1626 return ERR_PTR(-ENOMEM);
1627 }
1628 lport->lport_wwpn = wwpn;
1629 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1630 wwpn);
1631 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1632
1633 ret = tcm_qla2xxx_init_lport(lport);
1634 if (ret != 0)
1635 goto out;
1636
1637 ret = qlt_lport_register(lport, wwpn, 0, 0,
1638 tcm_qla2xxx_lport_register_cb);
1639 if (ret != 0)
1640 goto out_lport;
1641
1642 return &lport->lport_wwn;
1643out_lport:
1644 vfree(lport->lport_loopid_map);
1645 btree_destroy32(&lport->lport_fcport_map);
1646out:
1647 kfree(lport);
1648 return ERR_PTR(ret);
1649}
1650
1651static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1652{
1653 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1654 struct tcm_qla2xxx_lport, lport_wwn);
1655 struct scsi_qla_host *vha = lport->qla_vha;
1656 struct se_node_acl *node;
1657 u32 key = 0;
1658
1659
1660
1661
1662
1663
1664 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1665 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1666
1667 qlt_lport_deregister(vha);
1668
1669 vfree(lport->lport_loopid_map);
1670 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1671 btree_remove32(&lport->lport_fcport_map, key);
1672 btree_destroy32(&lport->lport_fcport_map);
1673 kfree(lport);
1674}
1675
1676static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1677 void *target_lport_ptr,
1678 u64 npiv_wwpn, u64 npiv_wwnn)
1679{
1680 struct fc_vport *vport;
1681 struct Scsi_Host *sh = base_vha->host;
1682 struct scsi_qla_host *npiv_vha;
1683 struct tcm_qla2xxx_lport *lport =
1684 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1685 struct tcm_qla2xxx_lport *base_lport =
1686 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1687 struct fc_vport_identifiers vport_id;
1688
1689 if (qla_ini_mode_enabled(base_vha)) {
1690 pr_err("qla2xxx base_vha not enabled for target mode\n");
1691 return -EPERM;
1692 }
1693
1694 if (!base_lport || !base_lport->tpg_1 ||
1695 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1696 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1697 return -EPERM;
1698 }
1699
1700 memset(&vport_id, 0, sizeof(vport_id));
1701 vport_id.port_name = npiv_wwpn;
1702 vport_id.node_name = npiv_wwnn;
1703 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1704 vport_id.vport_type = FC_PORTTYPE_NPIV;
1705 vport_id.disable = false;
1706
1707 vport = fc_vport_create(sh, 0, &vport_id);
1708 if (!vport) {
1709 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1710 return -ENODEV;
1711 }
1712
1713
1714
1715 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1716 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1717 lport->qla_vha = npiv_vha;
1718 scsi_host_get(npiv_vha->host);
1719 return 0;
1720}
1721
1722
1723static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1724 struct target_fabric_configfs *tf,
1725 struct config_group *group,
1726 const char *name)
1727{
1728 struct tcm_qla2xxx_lport *lport;
1729 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1730 char *p, tmp[128];
1731 int ret;
1732
1733 snprintf(tmp, 128, "%s", name);
1734
1735 p = strchr(tmp, '@');
1736 if (!p) {
1737 pr_err("Unable to locate NPIV '@' separator\n");
1738 return ERR_PTR(-EINVAL);
1739 }
1740 *p++ = '\0';
1741
1742 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1743 return ERR_PTR(-EINVAL);
1744
1745 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1746 &npiv_wwpn, &npiv_wwnn) < 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 for NPIV\n");
1752 return ERR_PTR(-ENOMEM);
1753 }
1754 lport->lport_npiv_wwpn = npiv_wwpn;
1755 lport->lport_npiv_wwnn = npiv_wwnn;
1756 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1757
1758 ret = tcm_qla2xxx_init_lport(lport);
1759 if (ret != 0)
1760 goto out;
1761
1762 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1763 tcm_qla2xxx_lport_register_npiv_cb);
1764 if (ret != 0)
1765 goto out_lport;
1766
1767 return &lport->lport_wwn;
1768out_lport:
1769 vfree(lport->lport_loopid_map);
1770 btree_destroy32(&lport->lport_fcport_map);
1771out:
1772 kfree(lport);
1773 return ERR_PTR(ret);
1774}
1775
1776static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1777{
1778 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1779 struct tcm_qla2xxx_lport, lport_wwn);
1780 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1781 struct qla_hw_data *ha = npiv_vha->hw;
1782 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1783
1784 scsi_host_put(npiv_vha->host);
1785
1786
1787
1788 fc_vport_terminate(npiv_vha->fc_vport);
1789 scsi_host_put(base_vha->host);
1790 kfree(lport);
1791}
1792
1793
1794static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1795 char *page)
1796{
1797 return sprintf(page,
1798 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1799 QLA2XXX_VERSION, utsname()->sysname,
1800 utsname()->machine, utsname()->release);
1801}
1802
1803CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1804
1805static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1806 &tcm_qla2xxx_wwn_attr_version,
1807 NULL,
1808};
1809
1810static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1811 .module = THIS_MODULE,
1812 .fabric_name = "qla2xxx",
1813 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1814
1815
1816
1817
1818 .max_data_sg_nents = 1200,
1819 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1820 .tpg_get_tag = tcm_qla2xxx_get_tag,
1821 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1822 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1823 .tpg_check_demo_mode_write_protect =
1824 tcm_qla2xxx_check_demo_write_protect,
1825 .tpg_check_prod_mode_write_protect =
1826 tcm_qla2xxx_check_prod_write_protect,
1827 .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
1828 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1829 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1830 .check_stop_free = tcm_qla2xxx_check_stop_free,
1831 .release_cmd = tcm_qla2xxx_release_cmd,
1832 .close_session = tcm_qla2xxx_close_session,
1833 .sess_get_index = tcm_qla2xxx_sess_get_index,
1834 .sess_get_initiator_sid = NULL,
1835 .write_pending = tcm_qla2xxx_write_pending,
1836 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1837 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1838 .queue_data_in = tcm_qla2xxx_queue_data_in,
1839 .queue_status = tcm_qla2xxx_queue_status,
1840 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1841 .aborted_task = tcm_qla2xxx_aborted_task,
1842
1843
1844
1845
1846 .fabric_make_wwn = tcm_qla2xxx_make_lport,
1847 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1848 .fabric_make_tpg = tcm_qla2xxx_make_tpg,
1849 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1850 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1851
1852 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1853 .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
1854 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1855};
1856
1857static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1858 .module = THIS_MODULE,
1859 .fabric_name = "qla2xxx_npiv",
1860 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1861 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1862 .tpg_get_tag = tcm_qla2xxx_get_tag,
1863 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1864 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1865 .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
1866 .tpg_check_prod_mode_write_protect =
1867 tcm_qla2xxx_check_prod_write_protect,
1868 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1869 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1870 .check_stop_free = tcm_qla2xxx_check_stop_free,
1871 .release_cmd = tcm_qla2xxx_release_cmd,
1872 .close_session = tcm_qla2xxx_close_session,
1873 .sess_get_index = tcm_qla2xxx_sess_get_index,
1874 .sess_get_initiator_sid = NULL,
1875 .write_pending = tcm_qla2xxx_write_pending,
1876 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1877 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1878 .queue_data_in = tcm_qla2xxx_queue_data_in,
1879 .queue_status = tcm_qla2xxx_queue_status,
1880 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1881 .aborted_task = tcm_qla2xxx_aborted_task,
1882
1883
1884
1885
1886 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1887 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1888 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1889 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1890 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1891
1892 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1893 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1894};
1895
1896static int tcm_qla2xxx_register_configfs(void)
1897{
1898 int ret;
1899
1900 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1901 QLA2XXX_VERSION, utsname()->sysname,
1902 utsname()->machine, utsname()->release);
1903
1904 ret = target_register_template(&tcm_qla2xxx_ops);
1905 if (ret)
1906 return ret;
1907
1908 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
1909 if (ret)
1910 goto out_fabric;
1911
1912 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
1913 WQ_MEM_RECLAIM, 0);
1914 if (!tcm_qla2xxx_free_wq) {
1915 ret = -ENOMEM;
1916 goto out_fabric_npiv;
1917 }
1918
1919 return 0;
1920
1921out_fabric_npiv:
1922 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1923out_fabric:
1924 target_unregister_template(&tcm_qla2xxx_ops);
1925 return ret;
1926}
1927
1928static void tcm_qla2xxx_deregister_configfs(void)
1929{
1930 destroy_workqueue(tcm_qla2xxx_free_wq);
1931
1932 target_unregister_template(&tcm_qla2xxx_ops);
1933 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1934}
1935
1936static int __init tcm_qla2xxx_init(void)
1937{
1938 int ret;
1939
1940 ret = tcm_qla2xxx_register_configfs();
1941 if (ret < 0)
1942 return ret;
1943
1944 return 0;
1945}
1946
1947static void __exit tcm_qla2xxx_exit(void)
1948{
1949 tcm_qla2xxx_deregister_configfs();
1950}
1951
1952MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
1953MODULE_LICENSE("GPL");
1954module_init(tcm_qla2xxx_init);
1955module_exit(tcm_qla2xxx_exit);
1956
