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26#include <linux/module.h>
27#include <linux/utsname.h>
28#include <linux/vmalloc.h>
29#include <linux/list.h>
30#include <linux/slab.h>
31#include <linux/types.h>
32#include <linux/string.h>
33#include <linux/configfs.h>
34#include <linux/ctype.h>
35#include <asm/unaligned.h>
36#include <scsi/scsi_host.h>
37#include <target/target_core_base.h>
38#include <target/target_core_fabric.h>
39
40#include "qla_def.h"
41#include "qla_target.h"
42#include "tcm_qla2xxx.h"
43
44static struct workqueue_struct *tcm_qla2xxx_free_wq;
45
46
47
48
49
50
51
52static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
53{
54 const char *cp;
55 char c;
56 u32 nibble;
57 u32 byte = 0;
58 u32 pos = 0;
59 u32 err;
60
61 *wwn = 0;
62 for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
63 c = *cp;
64 if (c == '\n' && cp[1] == '\0')
65 continue;
66 if (strict && pos++ == 2 && byte++ < 7) {
67 pos = 0;
68 if (c == ':')
69 continue;
70 err = 1;
71 goto fail;
72 }
73 if (c == '\0') {
74 err = 2;
75 if (strict && byte != 8)
76 goto fail;
77 return cp - name;
78 }
79 err = 3;
80 if (isdigit(c))
81 nibble = c - '0';
82 else if (isxdigit(c) && (islower(c) || !strict))
83 nibble = tolower(c) - 'a' + 10;
84 else
85 goto fail;
86 *wwn = (*wwn << 4) | nibble;
87 }
88 err = 4;
89fail:
90 pr_debug("err %u len %zu pos %u byte %u\n",
91 err, cp - name, pos, byte);
92 return -1;
93}
94
95static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
96{
97 u8 b[8];
98
99 put_unaligned_be64(wwn, b);
100 return snprintf(buf, len,
101 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
102 b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
103}
104
105
106
107
108static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
109{
110 unsigned int i, j;
111 u8 wwn[8];
112
113 memset(wwn, 0, sizeof(wwn));
114
115
116 for (i = 0, j = 0; i < 16; i++) {
117 int value;
118
119 value = hex_to_bin(*ns++);
120 if (value >= 0)
121 j = (j << 4) | value;
122 else
123 return -EINVAL;
124
125 if (i % 2) {
126 wwn[i/2] = j & 0xff;
127 j = 0;
128 }
129 }
130
131 *nm = wwn_to_u64(wwn);
132 return 0;
133}
134
135
136
137
138
139static int tcm_qla2xxx_npiv_parse_wwn(
140 const char *name,
141 size_t count,
142 u64 *wwpn,
143 u64 *wwnn)
144{
145 unsigned int cnt = count;
146 int rc;
147
148 *wwpn = 0;
149 *wwnn = 0;
150
151
152 if (name[cnt-1] == '\n' || name[cnt-1] == 0)
153 cnt--;
154
155
156 if ((cnt != (16+1+16)) || (name[16] != ':'))
157 return -EINVAL;
158
159 rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
160 if (rc != 0)
161 return rc;
162
163 rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
164 if (rc != 0)
165 return rc;
166
167 return 0;
168}
169
170static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
171{
172 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
173 struct tcm_qla2xxx_tpg, se_tpg);
174 struct tcm_qla2xxx_lport *lport = tpg->lport;
175
176 return lport->lport_naa_name;
177}
178
179static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
180{
181 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
182 struct tcm_qla2xxx_tpg, se_tpg);
183 return tpg->lport_tpgt;
184}
185
186static int tcm_qla2xxx_check_demo_mode(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.generate_node_acls;
192}
193
194static int tcm_qla2xxx_check_demo_mode_cache(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.cache_dynamic_acls;
200}
201
202static int tcm_qla2xxx_check_demo_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.demo_mode_write_protect;
208}
209
210static int tcm_qla2xxx_check_prod_write_protect(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.prod_mode_write_protect;
216}
217
218static int tcm_qla2xxx_check_demo_mode_login_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.demo_mode_login_only;
224}
225
226static int tcm_qla2xxx_check_prot_fabric_only(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->tpg_attrib.fabric_prot_type;
232}
233
234static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
235{
236 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
237 struct tcm_qla2xxx_tpg, se_tpg);
238
239 return tpg->lport_tpgt;
240}
241
242static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
243{
244 struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
245 struct qla_tgt_mgmt_cmd, free_work);
246
247 transport_generic_free_cmd(&mcmd->se_cmd, 0);
248}
249
250
251
252
253
254
255static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
256{
257 if (!mcmd)
258 return;
259 INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
260 queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
261}
262
263static void tcm_qla2xxx_complete_free(struct work_struct *work)
264{
265 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
266
267 cmd->cmd_in_wq = 0;
268
269 WARN_ON(cmd->trc_flags & TRC_CMD_FREE);
270
271
272 cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
273 cmd->trc_flags |= TRC_CMD_FREE;
274 cmd->cmd_sent_to_fw = 0;
275
276 transport_generic_free_cmd(&cmd->se_cmd, 0);
277}
278
279
280
281
282
283
284static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
285{
286 cmd->qpair->tgt_counters.core_qla_free_cmd++;
287 cmd->cmd_in_wq = 1;
288
289 WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
290 cmd->trc_flags |= TRC_CMD_DONE;
291
292 INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
293 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
294}
295
296
297
298
299static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
300{
301 struct qla_tgt_cmd *cmd;
302
303 if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) {
304 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
305 cmd->trc_flags |= TRC_CMD_CHK_STOP;
306 }
307
308 return target_put_sess_cmd(se_cmd);
309}
310
311
312
313
314static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
315{
316 struct qla_tgt_cmd *cmd;
317
318 if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
319 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
320 struct qla_tgt_mgmt_cmd, se_cmd);
321 qlt_free_mcmd(mcmd);
322 return;
323 }
324 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
325
326 if (WARN_ON(cmd->cmd_sent_to_fw))
327 return;
328
329 qlt_free_cmd(cmd);
330}
331
332static void tcm_qla2xxx_release_session(struct kref *kref)
333{
334 struct fc_port *sess = container_of(kref,
335 struct fc_port, sess_kref);
336
337 qlt_unreg_sess(sess);
338}
339
340static void tcm_qla2xxx_put_sess(struct fc_port *sess)
341{
342 if (!sess)
343 return;
344
345 kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
346}
347
348static void tcm_qla2xxx_close_session(struct se_session *se_sess)
349{
350 struct fc_port *sess = se_sess->fabric_sess_ptr;
351
352 BUG_ON(!sess);
353
354 target_stop_session(se_sess);
355
356 sess->explicit_logout = 1;
357 tcm_qla2xxx_put_sess(sess);
358}
359
360static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
361{
362 return 0;
363}
364
365static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
366{
367 struct qla_tgt_cmd *cmd = container_of(se_cmd,
368 struct qla_tgt_cmd, se_cmd);
369
370 if (cmd->aborted) {
371
372
373
374
375 pr_debug("write_pending aborted cmd[%p] refcount %d "
376 "transport_state %x, t_state %x, se_cmd_flags %x\n",
377 cmd, kref_read(&cmd->se_cmd.cmd_kref),
378 cmd->se_cmd.transport_state,
379 cmd->se_cmd.t_state,
380 cmd->se_cmd.se_cmd_flags);
381 transport_generic_request_failure(&cmd->se_cmd,
382 TCM_CHECK_CONDITION_ABORT_CMD);
383 return 0;
384 }
385 cmd->trc_flags |= TRC_XFR_RDY;
386 cmd->bufflen = se_cmd->data_length;
387 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
388
389 cmd->sg_cnt = se_cmd->t_data_nents;
390 cmd->sg = se_cmd->t_data_sg;
391
392 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
393 cmd->prot_sg = se_cmd->t_prot_sg;
394 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
395 se_cmd->pi_err = 0;
396
397
398
399
400
401 return qlt_rdy_to_xfer(cmd);
402}
403
404static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
405{
406 return;
407}
408
409static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
410{
411 if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
412 struct qla_tgt_cmd *cmd = container_of(se_cmd,
413 struct qla_tgt_cmd, se_cmd);
414 return cmd->state;
415 }
416
417 return 0;
418}
419
420
421
422
423static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
424 unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
425 int data_dir, int bidi)
426{
427 struct se_cmd *se_cmd = &cmd->se_cmd;
428 struct se_session *se_sess;
429 struct fc_port *sess;
430#ifdef CONFIG_TCM_QLA2XXX_DEBUG
431 struct se_portal_group *se_tpg;
432 struct tcm_qla2xxx_tpg *tpg;
433#endif
434 int flags = TARGET_SCF_ACK_KREF;
435
436 if (bidi)
437 flags |= TARGET_SCF_BIDI_OP;
438
439 if (se_cmd->cpuid != WORK_CPU_UNBOUND)
440 flags |= TARGET_SCF_USE_CPUID;
441
442 sess = cmd->sess;
443 if (!sess) {
444 pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
445 return -EINVAL;
446 }
447
448 se_sess = sess->se_sess;
449 if (!se_sess) {
450 pr_err("Unable to locate active struct se_session\n");
451 return -EINVAL;
452 }
453
454#ifdef CONFIG_TCM_QLA2XXX_DEBUG
455 se_tpg = se_sess->se_tpg;
456 tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
457 if (unlikely(tpg->tpg_attrib.jam_host)) {
458
459 return 0;
460 }
461#endif
462
463 cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
464 return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
465 cmd->unpacked_lun, data_length, fcp_task_attr,
466 data_dir, flags);
467}
468
469static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
470{
471 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
472
473
474
475
476
477 cmd->cmd_in_wq = 0;
478 cmd->cmd_sent_to_fw = 0;
479 if (cmd->aborted) {
480 transport_generic_request_failure(&cmd->se_cmd,
481 TCM_CHECK_CONDITION_ABORT_CMD);
482 return;
483 }
484
485 cmd->qpair->tgt_counters.qla_core_ret_ctio++;
486 if (!cmd->write_data_transferred) {
487 switch (cmd->dif_err_code) {
488 case DIF_ERR_GRD:
489 cmd->se_cmd.pi_err =
490 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
491 break;
492 case DIF_ERR_REF:
493 cmd->se_cmd.pi_err =
494 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
495 break;
496 case DIF_ERR_APP:
497 cmd->se_cmd.pi_err =
498 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
499 break;
500 case DIF_ERR_NONE:
501 default:
502 break;
503 }
504
505 if (cmd->se_cmd.pi_err)
506 transport_generic_request_failure(&cmd->se_cmd,
507 cmd->se_cmd.pi_err);
508 else
509 transport_generic_request_failure(&cmd->se_cmd,
510 TCM_CHECK_CONDITION_ABORT_CMD);
511
512 return;
513 }
514
515 return target_execute_cmd(&cmd->se_cmd);
516}
517
518
519
520
521static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
522{
523 cmd->trc_flags |= TRC_DATA_IN;
524 cmd->cmd_in_wq = 1;
525 INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
526 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
527}
528
529static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
530{
531 return 0;
532}
533
534static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
535 uint16_t *pfw_prot_opts)
536{
537 struct se_cmd *se_cmd = &cmd->se_cmd;
538
539 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
540 *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
541
542 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
543 *pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
544
545 return 0;
546}
547
548
549
550
551static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
552 uint16_t tmr_func, uint32_t tag)
553{
554 struct fc_port *sess = mcmd->sess;
555 struct se_cmd *se_cmd = &mcmd->se_cmd;
556 int transl_tmr_func = 0;
557 int flags = TARGET_SCF_ACK_KREF;
558
559 switch (tmr_func) {
560 case QLA_TGT_ABTS:
561 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
562 transl_tmr_func = TMR_ABORT_TASK;
563 flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG;
564 break;
565 case QLA_TGT_2G_ABORT_TASK:
566 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
567 transl_tmr_func = TMR_ABORT_TASK;
568 break;
569 case QLA_TGT_CLEAR_ACA:
570 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
571 transl_tmr_func = TMR_CLEAR_ACA;
572 break;
573 case QLA_TGT_TARGET_RESET:
574 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
575 transl_tmr_func = TMR_TARGET_WARM_RESET;
576 break;
577 case QLA_TGT_LUN_RESET:
578 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
579 transl_tmr_func = TMR_LUN_RESET;
580 break;
581 case QLA_TGT_CLEAR_TS:
582 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
583 transl_tmr_func = TMR_CLEAR_TASK_SET;
584 break;
585 case QLA_TGT_ABORT_TS:
586 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
587 transl_tmr_func = TMR_ABORT_TASK_SET;
588 break;
589 default:
590 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
591 sess->vha->host_no, tmr_func);
592 return -ENOSYS;
593 }
594
595 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
596 transl_tmr_func, GFP_ATOMIC, tag, flags);
597}
598
599static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess,
600 uint64_t tag)
601{
602 struct qla_tgt_cmd *cmd = NULL;
603 struct se_cmd *secmd;
604 unsigned long flags;
605
606 if (!sess->se_sess)
607 return NULL;
608
609 spin_lock_irqsave(&sess->se_sess->sess_cmd_lock, flags);
610 list_for_each_entry(secmd, &sess->se_sess->sess_cmd_list, se_cmd_list) {
611
612 if (secmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
613 continue;
614
615 if (secmd->tag == tag) {
616 cmd = container_of(secmd, struct qla_tgt_cmd, se_cmd);
617 break;
618 }
619 }
620 spin_unlock_irqrestore(&sess->se_sess->sess_cmd_lock, flags);
621
622 return cmd;
623}
624
625static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
626{
627 struct qla_tgt_cmd *cmd = container_of(se_cmd,
628 struct qla_tgt_cmd, se_cmd);
629
630 if (cmd->aborted) {
631
632
633
634
635 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
636 "transport_state %x, t_state %x, se_cmd_flags %x\n",
637 cmd, kref_read(&cmd->se_cmd.cmd_kref),
638 cmd->se_cmd.transport_state,
639 cmd->se_cmd.t_state,
640 cmd->se_cmd.se_cmd_flags);
641 return 0;
642 }
643
644 cmd->trc_flags |= TRC_XMIT_DATA;
645 cmd->bufflen = se_cmd->data_length;
646 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
647
648 cmd->sg_cnt = se_cmd->t_data_nents;
649 cmd->sg = se_cmd->t_data_sg;
650 cmd->offset = 0;
651
652 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
653 cmd->prot_sg = se_cmd->t_prot_sg;
654 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
655 se_cmd->pi_err = 0;
656
657
658
659
660 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
661 se_cmd->scsi_status);
662}
663
664static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
665{
666 struct qla_tgt_cmd *cmd = container_of(se_cmd,
667 struct qla_tgt_cmd, se_cmd);
668 int xmit_type = QLA_TGT_XMIT_STATUS;
669
670 if (cmd->aborted) {
671
672
673
674
675
676 pr_debug(
677 "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
678 cmd, kref_read(&cmd->se_cmd.cmd_kref),
679 cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
680 cmd->se_cmd.se_cmd_flags);
681 return 0;
682 }
683 cmd->bufflen = se_cmd->data_length;
684 cmd->sg = NULL;
685 cmd->sg_cnt = 0;
686 cmd->offset = 0;
687 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
688 cmd->trc_flags |= TRC_XMIT_STATUS;
689
690 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
691
692
693
694
695 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
696 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
697 se_cmd->residual_count = 0;
698 }
699 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
700 se_cmd->residual_count += se_cmd->data_length;
701
702 cmd->bufflen = 0;
703 }
704
705
706
707 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
708}
709
710static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
711{
712 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
713 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
714 struct qla_tgt_mgmt_cmd, se_cmd);
715
716 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
717 mcmd, se_tmr->function, se_tmr->response);
718
719
720
721
722 switch (se_tmr->response) {
723 case TMR_FUNCTION_COMPLETE:
724 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
725 break;
726 case TMR_TASK_DOES_NOT_EXIST:
727 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
728 break;
729 case TMR_FUNCTION_REJECTED:
730 mcmd->fc_tm_rsp = FC_TM_REJECT;
731 break;
732 case TMR_LUN_DOES_NOT_EXIST:
733 default:
734 mcmd->fc_tm_rsp = FC_TM_FAILED;
735 break;
736 }
737
738
739
740
741 qlt_xmit_tm_rsp(mcmd);
742}
743
744static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
745{
746 struct qla_tgt_cmd *cmd = container_of(se_cmd,
747 struct qla_tgt_cmd, se_cmd);
748
749 if (qlt_abort_cmd(cmd))
750 return;
751}
752
753static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
754 struct tcm_qla2xxx_nacl *, struct fc_port *);
755
756
757
758static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
759{
760 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
761 struct se_portal_group *se_tpg = se_nacl->se_tpg;
762 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
763 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
764 struct tcm_qla2xxx_lport, lport_wwn);
765 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
766 struct tcm_qla2xxx_nacl, se_node_acl);
767 void *node;
768
769 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
770
771 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
772 if (WARN_ON(node && (node != se_nacl))) {
773
774
775
776
777
778
779 btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
780 node, GFP_ATOMIC);
781 }
782
783 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
784 se_nacl, nacl->nport_wwnn, nacl->nport_id);
785
786
787
788
789
790
791
792
793
794 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
795}
796
797static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
798{
799 target_stop_session(sess->se_sess);
800}
801
802static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
803 const char *name)
804{
805 struct tcm_qla2xxx_nacl *nacl =
806 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
807 u64 wwnn;
808
809 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
810 return -EINVAL;
811
812 nacl->nport_wwnn = wwnn;
813 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
814
815 return 0;
816}
817
818
819
820#define DEF_QLA_TPG_ATTRIB(name) \
821 \
822static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
823 struct config_item *item, char *page) \
824{ \
825 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
826 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
827 struct tcm_qla2xxx_tpg, se_tpg); \
828 \
829 return sprintf(page, "%d\n", tpg->tpg_attrib.name); \
830} \
831 \
832static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
833 struct config_item *item, const char *page, size_t count) \
834{ \
835 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
836 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
837 struct tcm_qla2xxx_tpg, se_tpg); \
838 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
839 unsigned long val; \
840 int ret; \
841 \
842 ret = kstrtoul(page, 0, &val); \
843 if (ret < 0) { \
844 pr_err("kstrtoul() failed with" \
845 " ret: %d\n", ret); \
846 return -EINVAL; \
847 } \
848 \
849 if ((val != 0) && (val != 1)) { \
850 pr_err("Illegal boolean value %lu\n", val); \
851 return -EINVAL; \
852 } \
853 \
854 a->name = val; \
855 \
856 return count; \
857} \
858CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
859
860DEF_QLA_TPG_ATTRIB(generate_node_acls);
861DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
862DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
863DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
864DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
865#ifdef CONFIG_TCM_QLA2XXX_DEBUG
866DEF_QLA_TPG_ATTRIB(jam_host);
867#endif
868
869static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
870 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
871 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
872 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
873 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
874 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
875#ifdef CONFIG_TCM_QLA2XXX_DEBUG
876 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
877#endif
878 NULL,
879};
880
881
882
883static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
884 char *page)
885{
886 struct se_portal_group *se_tpg = to_tpg(item);
887 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
888 struct tcm_qla2xxx_tpg, se_tpg);
889
890 return snprintf(page, PAGE_SIZE, "%d\n",
891 atomic_read(&tpg->lport_tpg_enabled));
892}
893
894static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
895 const char *page, size_t count)
896{
897 struct se_portal_group *se_tpg = to_tpg(item);
898 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
899 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
900 struct tcm_qla2xxx_lport, lport_wwn);
901 struct scsi_qla_host *vha = lport->qla_vha;
902 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
903 struct tcm_qla2xxx_tpg, se_tpg);
904 unsigned long op;
905 int rc;
906
907 rc = kstrtoul(page, 0, &op);
908 if (rc < 0) {
909 pr_err("kstrtoul() returned %d\n", rc);
910 return -EINVAL;
911 }
912 if ((op != 1) && (op != 0)) {
913 pr_err("Illegal value for tpg_enable: %lu\n", op);
914 return -EINVAL;
915 }
916 if (op) {
917 if (atomic_read(&tpg->lport_tpg_enabled))
918 return -EEXIST;
919
920 atomic_set(&tpg->lport_tpg_enabled, 1);
921 qlt_enable_vha(vha);
922 } else {
923 if (!atomic_read(&tpg->lport_tpg_enabled))
924 return count;
925
926 atomic_set(&tpg->lport_tpg_enabled, 0);
927 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
928 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
929 }
930
931 return count;
932}
933
934static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
935 char *page)
936{
937 return target_show_dynamic_sessions(to_tpg(item), page);
938}
939
940static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
941 const char *page, size_t count)
942{
943 struct se_portal_group *se_tpg = to_tpg(item);
944 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
945 struct tcm_qla2xxx_tpg, se_tpg);
946 unsigned long val;
947 int ret = kstrtoul(page, 0, &val);
948
949 if (ret) {
950 pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
951 return ret;
952 }
953 if (val != 0 && val != 1 && val != 3) {
954 pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
955 return -EINVAL;
956 }
957 tpg->tpg_attrib.fabric_prot_type = val;
958
959 return count;
960}
961
962static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
963 char *page)
964{
965 struct se_portal_group *se_tpg = to_tpg(item);
966 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
967 struct tcm_qla2xxx_tpg, se_tpg);
968
969 return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
970}
971
972CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable);
973CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
974CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
975
976static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
977 &tcm_qla2xxx_tpg_attr_enable,
978 &tcm_qla2xxx_tpg_attr_dynamic_sessions,
979 &tcm_qla2xxx_tpg_attr_fabric_prot_type,
980 NULL,
981};
982
983static struct se_portal_group *tcm_qla2xxx_make_tpg(struct se_wwn *wwn,
984 const char *name)
985{
986 struct tcm_qla2xxx_lport *lport = container_of(wwn,
987 struct tcm_qla2xxx_lport, lport_wwn);
988 struct tcm_qla2xxx_tpg *tpg;
989 unsigned long tpgt;
990 int ret;
991
992 if (strstr(name, "tpgt_") != name)
993 return ERR_PTR(-EINVAL);
994 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
995 return ERR_PTR(-EINVAL);
996
997 if ((tpgt != 1)) {
998 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
999 return ERR_PTR(-ENOSYS);
1000 }
1001
1002 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1003 if (!tpg) {
1004 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1005 return ERR_PTR(-ENOMEM);
1006 }
1007 tpg->lport = lport;
1008 tpg->lport_tpgt = tpgt;
1009
1010
1011
1012
1013 tpg->tpg_attrib.generate_node_acls = 1;
1014 tpg->tpg_attrib.demo_mode_write_protect = 1;
1015 tpg->tpg_attrib.cache_dynamic_acls = 1;
1016 tpg->tpg_attrib.demo_mode_login_only = 1;
1017 tpg->tpg_attrib.jam_host = 0;
1018
1019 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1020 if (ret < 0) {
1021 kfree(tpg);
1022 return NULL;
1023 }
1024
1025 lport->tpg_1 = tpg;
1026
1027 return &tpg->se_tpg;
1028}
1029
1030static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1031{
1032 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1033 struct tcm_qla2xxx_tpg, se_tpg);
1034 struct tcm_qla2xxx_lport *lport = tpg->lport;
1035 struct scsi_qla_host *vha = lport->qla_vha;
1036
1037
1038
1039
1040 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1041 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1042
1043 core_tpg_deregister(se_tpg);
1044
1045
1046
1047 lport->tpg_1 = NULL;
1048 kfree(tpg);
1049}
1050
1051static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1052 char *page)
1053{
1054 return tcm_qla2xxx_tpg_enable_show(item, page);
1055}
1056
1057static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1058 const char *page, size_t count)
1059{
1060 struct se_portal_group *se_tpg = to_tpg(item);
1061 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1062 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1063 struct tcm_qla2xxx_lport, lport_wwn);
1064 struct scsi_qla_host *vha = lport->qla_vha;
1065 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1066 struct tcm_qla2xxx_tpg, se_tpg);
1067 unsigned long op;
1068 int rc;
1069
1070 rc = kstrtoul(page, 0, &op);
1071 if (rc < 0) {
1072 pr_err("kstrtoul() returned %d\n", rc);
1073 return -EINVAL;
1074 }
1075 if ((op != 1) && (op != 0)) {
1076 pr_err("Illegal value for tpg_enable: %lu\n", op);
1077 return -EINVAL;
1078 }
1079 if (op) {
1080 if (atomic_read(&tpg->lport_tpg_enabled))
1081 return -EEXIST;
1082
1083 atomic_set(&tpg->lport_tpg_enabled, 1);
1084 qlt_enable_vha(vha);
1085 } else {
1086 if (!atomic_read(&tpg->lport_tpg_enabled))
1087 return count;
1088
1089 atomic_set(&tpg->lport_tpg_enabled, 0);
1090 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1091 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1092 }
1093
1094 return count;
1095}
1096
1097CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1098
1099static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1100 &tcm_qla2xxx_npiv_tpg_attr_enable,
1101 NULL,
1102};
1103
1104static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(struct se_wwn *wwn,
1105 const char *name)
1106{
1107 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1108 struct tcm_qla2xxx_lport, lport_wwn);
1109 struct tcm_qla2xxx_tpg *tpg;
1110 unsigned long tpgt;
1111 int ret;
1112
1113 if (strstr(name, "tpgt_") != name)
1114 return ERR_PTR(-EINVAL);
1115 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1116 return ERR_PTR(-EINVAL);
1117
1118 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1119 if (!tpg) {
1120 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1121 return ERR_PTR(-ENOMEM);
1122 }
1123 tpg->lport = lport;
1124 tpg->lport_tpgt = tpgt;
1125
1126
1127
1128
1129
1130 tpg->tpg_attrib.generate_node_acls = 1;
1131 tpg->tpg_attrib.demo_mode_write_protect = 1;
1132 tpg->tpg_attrib.cache_dynamic_acls = 1;
1133 tpg->tpg_attrib.demo_mode_login_only = 1;
1134
1135 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1136 if (ret < 0) {
1137 kfree(tpg);
1138 return NULL;
1139 }
1140 lport->tpg_1 = tpg;
1141 return &tpg->se_tpg;
1142}
1143
1144
1145
1146
1147static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(scsi_qla_host_t *vha,
1148 const be_id_t s_id)
1149{
1150 struct tcm_qla2xxx_lport *lport;
1151 struct se_node_acl *se_nacl;
1152 struct tcm_qla2xxx_nacl *nacl;
1153 u32 key;
1154
1155 lport = vha->vha_tgt.target_lport_ptr;
1156 if (!lport) {
1157 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1158 dump_stack();
1159 return NULL;
1160 }
1161
1162 key = sid_to_key(s_id);
1163 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1164
1165 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1166 if (!se_nacl) {
1167 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1168 return NULL;
1169 }
1170 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1171 se_nacl, se_nacl->initiatorname);
1172
1173 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1174 if (!nacl->fc_port) {
1175 pr_err("Unable to locate struct fc_port\n");
1176 return NULL;
1177 }
1178
1179 return nacl->fc_port;
1180}
1181
1182
1183
1184
1185static void tcm_qla2xxx_set_sess_by_s_id(
1186 struct tcm_qla2xxx_lport *lport,
1187 struct se_node_acl *new_se_nacl,
1188 struct tcm_qla2xxx_nacl *nacl,
1189 struct se_session *se_sess,
1190 struct fc_port *fc_port,
1191 be_id_t s_id)
1192{
1193 u32 key;
1194 void *slot;
1195 int rc;
1196
1197 key = sid_to_key(s_id);
1198 pr_debug("set_sess_by_s_id: %06x\n", key);
1199
1200 slot = btree_lookup32(&lport->lport_fcport_map, key);
1201 if (!slot) {
1202 if (new_se_nacl) {
1203 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1204 nacl->nport_id = key;
1205 rc = btree_insert32(&lport->lport_fcport_map, key,
1206 new_se_nacl, GFP_ATOMIC);
1207 if (rc)
1208 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1209 (int)key);
1210 } else {
1211 pr_debug("Wiping nonexisting fc_port entry\n");
1212 }
1213
1214 fc_port->se_sess = se_sess;
1215 nacl->fc_port = fc_port;
1216 return;
1217 }
1218
1219 if (nacl->fc_port) {
1220 if (new_se_nacl == NULL) {
1221 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1222 btree_remove32(&lport->lport_fcport_map, key);
1223 nacl->fc_port = NULL;
1224 return;
1225 }
1226 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1227 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1228 fc_port->se_sess = se_sess;
1229 nacl->fc_port = fc_port;
1230 return;
1231 }
1232
1233 if (new_se_nacl == NULL) {
1234 pr_debug("Clearing existing fc_port entry\n");
1235 btree_remove32(&lport->lport_fcport_map, key);
1236 return;
1237 }
1238
1239 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1240 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1241 fc_port->se_sess = se_sess;
1242 nacl->fc_port = fc_port;
1243
1244 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1245 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1246}
1247
1248
1249
1250
1251static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1252 scsi_qla_host_t *vha,
1253 const uint16_t loop_id)
1254{
1255 struct tcm_qla2xxx_lport *lport;
1256 struct se_node_acl *se_nacl;
1257 struct tcm_qla2xxx_nacl *nacl;
1258 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1259
1260 lport = vha->vha_tgt.target_lport_ptr;
1261 if (!lport) {
1262 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1263 dump_stack();
1264 return NULL;
1265 }
1266
1267 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1268
1269 fc_loopid = lport->lport_loopid_map + loop_id;
1270 se_nacl = fc_loopid->se_nacl;
1271 if (!se_nacl) {
1272 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1273 loop_id);
1274 return NULL;
1275 }
1276
1277 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1278
1279 if (!nacl->fc_port) {
1280 pr_err("Unable to locate struct fc_port\n");
1281 return NULL;
1282 }
1283
1284 return nacl->fc_port;
1285}
1286
1287
1288
1289
1290static void tcm_qla2xxx_set_sess_by_loop_id(
1291 struct tcm_qla2xxx_lport *lport,
1292 struct se_node_acl *new_se_nacl,
1293 struct tcm_qla2xxx_nacl *nacl,
1294 struct se_session *se_sess,
1295 struct fc_port *fc_port,
1296 uint16_t loop_id)
1297{
1298 struct se_node_acl *saved_nacl;
1299 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1300
1301 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1302
1303 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1304 lport->lport_loopid_map)[loop_id];
1305
1306 saved_nacl = fc_loopid->se_nacl;
1307 if (!saved_nacl) {
1308 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1309 fc_loopid->se_nacl = new_se_nacl;
1310 if (fc_port->se_sess != se_sess)
1311 fc_port->se_sess = se_sess;
1312 if (nacl->fc_port != fc_port)
1313 nacl->fc_port = fc_port;
1314 return;
1315 }
1316
1317 if (nacl->fc_port) {
1318 if (new_se_nacl == NULL) {
1319 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1320 fc_loopid->se_nacl = NULL;
1321 nacl->fc_port = NULL;
1322 return;
1323 }
1324
1325 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1326 fc_loopid->se_nacl = new_se_nacl;
1327 if (fc_port->se_sess != se_sess)
1328 fc_port->se_sess = se_sess;
1329 if (nacl->fc_port != fc_port)
1330 nacl->fc_port = fc_port;
1331 return;
1332 }
1333
1334 if (new_se_nacl == NULL) {
1335 pr_debug("Clearing fc_loopid->se_nacl\n");
1336 fc_loopid->se_nacl = NULL;
1337 return;
1338 }
1339
1340 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1341 fc_loopid->se_nacl = new_se_nacl;
1342 if (fc_port->se_sess != se_sess)
1343 fc_port->se_sess = se_sess;
1344 if (nacl->fc_port != fc_port)
1345 nacl->fc_port = fc_port;
1346
1347 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1348 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1349}
1350
1351
1352
1353
1354static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1355 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1356{
1357 struct se_session *se_sess = sess->se_sess;
1358
1359 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1360 sess, port_id_to_be_id(sess->d_id));
1361 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1362 sess, sess->loop_id);
1363}
1364
1365static void tcm_qla2xxx_free_session(struct fc_port *sess)
1366{
1367 struct qla_tgt *tgt = sess->tgt;
1368 struct qla_hw_data *ha = tgt->ha;
1369 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1370 struct se_session *se_sess;
1371 struct tcm_qla2xxx_lport *lport;
1372
1373 BUG_ON(in_interrupt());
1374
1375 se_sess = sess->se_sess;
1376 if (!se_sess) {
1377 pr_err("struct fc_port->se_sess is NULL\n");
1378 dump_stack();
1379 return;
1380 }
1381
1382 lport = vha->vha_tgt.target_lport_ptr;
1383 if (!lport) {
1384 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1385 dump_stack();
1386 return;
1387 }
1388 target_wait_for_sess_cmds(se_sess);
1389
1390 target_remove_session(se_sess);
1391}
1392
1393static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
1394 struct se_session *se_sess, void *p)
1395{
1396 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1397 struct tcm_qla2xxx_tpg, se_tpg);
1398 struct tcm_qla2xxx_lport *lport = tpg->lport;
1399 struct qla_hw_data *ha = lport->qla_vha->hw;
1400 struct se_node_acl *se_nacl = se_sess->se_node_acl;
1401 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1402 struct tcm_qla2xxx_nacl, se_node_acl);
1403 struct fc_port *qlat_sess = p;
1404 uint16_t loop_id = qlat_sess->loop_id;
1405 unsigned long flags;
1406
1407
1408
1409
1410
1411 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1412 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, qlat_sess,
1413 port_id_to_be_id(qlat_sess->d_id));
1414 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
1415 se_sess, qlat_sess, loop_id);
1416 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1417
1418 return 0;
1419}
1420
1421
1422
1423
1424
1425static int tcm_qla2xxx_check_initiator_node_acl(
1426 scsi_qla_host_t *vha,
1427 unsigned char *fc_wwpn,
1428 struct fc_port *qlat_sess)
1429{
1430 struct qla_hw_data *ha = vha->hw;
1431 struct tcm_qla2xxx_lport *lport;
1432 struct tcm_qla2xxx_tpg *tpg;
1433 struct se_session *se_sess;
1434 unsigned char port_name[36];
1435 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1436 TCM_QLA2XXX_DEFAULT_TAGS;
1437
1438 lport = vha->vha_tgt.target_lport_ptr;
1439 if (!lport) {
1440 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1441 dump_stack();
1442 return -EINVAL;
1443 }
1444
1445
1446
1447 tpg = lport->tpg_1;
1448 if (!tpg) {
1449 pr_err("Unable to locate struct tcm_qla2xxx_lport->tpg_1\n");
1450 return -EINVAL;
1451 }
1452
1453
1454
1455
1456 memset(&port_name, 0, 36);
1457 snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
1458
1459
1460
1461
1462 se_sess = target_setup_session(&tpg->se_tpg, num_tags,
1463 sizeof(struct qla_tgt_cmd),
1464 TARGET_PROT_ALL, port_name,
1465 qlat_sess, tcm_qla2xxx_session_cb);
1466 if (IS_ERR(se_sess))
1467 return PTR_ERR(se_sess);
1468
1469 return 0;
1470}
1471
1472static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1473 uint16_t loop_id, bool conf_compl_supported)
1474{
1475 struct qla_tgt *tgt = sess->tgt;
1476 struct qla_hw_data *ha = tgt->ha;
1477 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1478 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1479 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1480 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1481 struct tcm_qla2xxx_nacl, se_node_acl);
1482 u32 key;
1483
1484
1485 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1486 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1487 sess, sess->port_name,
1488 sess->loop_id, loop_id, sess->d_id.b.domain,
1489 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1490 s_id.b.area, s_id.b.al_pa);
1491
1492 if (sess->loop_id != loop_id) {
1493
1494
1495
1496
1497
1498
1499
1500
1501 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1502 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1503
1504 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1505
1506 sess->loop_id = loop_id;
1507 }
1508
1509 if (sess->d_id.b24 != s_id.b24) {
1510 key = (((u32) sess->d_id.b.domain << 16) |
1511 ((u32) sess->d_id.b.area << 8) |
1512 ((u32) sess->d_id.b.al_pa));
1513
1514 if (btree_lookup32(&lport->lport_fcport_map, key))
1515 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1516 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1517 sess->d_id.b.domain, sess->d_id.b.area,
1518 sess->d_id.b.al_pa);
1519 else
1520 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1521 sess->d_id.b.domain, sess->d_id.b.area,
1522 sess->d_id.b.al_pa);
1523
1524 key = (((u32) s_id.b.domain << 16) |
1525 ((u32) s_id.b.area << 8) |
1526 ((u32) s_id.b.al_pa));
1527
1528 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1529 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1530 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1531 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1532 } else {
1533 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1534 GFP_ATOMIC);
1535 }
1536
1537 sess->d_id = s_id;
1538 nacl->nport_id = key;
1539 }
1540
1541 sess->conf_compl_supported = conf_compl_supported;
1542
1543}
1544
1545
1546
1547
1548static const struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1549 .find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag,
1550 .handle_cmd = tcm_qla2xxx_handle_cmd,
1551 .handle_data = tcm_qla2xxx_handle_data,
1552 .handle_tmr = tcm_qla2xxx_handle_tmr,
1553 .free_cmd = tcm_qla2xxx_free_cmd,
1554 .free_mcmd = tcm_qla2xxx_free_mcmd,
1555 .free_session = tcm_qla2xxx_free_session,
1556 .update_sess = tcm_qla2xxx_update_sess,
1557 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1558 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1559 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1560 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1561 .put_sess = tcm_qla2xxx_put_sess,
1562 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1563 .get_dif_tags = tcm_qla2xxx_dif_tags,
1564 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1565};
1566
1567static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1568{
1569 int rc;
1570
1571 rc = btree_init32(&lport->lport_fcport_map);
1572 if (rc) {
1573 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1574 return rc;
1575 }
1576
1577 lport->lport_loopid_map =
1578 vzalloc(array_size(65536,
1579 sizeof(struct tcm_qla2xxx_fc_loopid)));
1580 if (!lport->lport_loopid_map) {
1581 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1582 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1583 btree_destroy32(&lport->lport_fcport_map);
1584 return -ENOMEM;
1585 }
1586 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1587 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1588 return 0;
1589}
1590
1591static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1592 void *target_lport_ptr,
1593 u64 npiv_wwpn, u64 npiv_wwnn)
1594{
1595 struct qla_hw_data *ha = vha->hw;
1596 struct tcm_qla2xxx_lport *lport =
1597 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1598
1599
1600
1601 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1602 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1603 lport->qla_vha = vha;
1604
1605 return 0;
1606}
1607
1608static struct se_wwn *tcm_qla2xxx_make_lport(
1609 struct target_fabric_configfs *tf,
1610 struct config_group *group,
1611 const char *name)
1612{
1613 struct tcm_qla2xxx_lport *lport;
1614 u64 wwpn;
1615 int ret = -ENODEV;
1616
1617 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 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\n");
1623 return ERR_PTR(-ENOMEM);
1624 }
1625 lport->lport_wwpn = wwpn;
1626 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1627 wwpn);
1628 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1629
1630 ret = tcm_qla2xxx_init_lport(lport);
1631 if (ret != 0)
1632 goto out;
1633
1634 ret = qlt_lport_register(lport, wwpn, 0, 0,
1635 tcm_qla2xxx_lport_register_cb);
1636 if (ret != 0)
1637 goto out_lport;
1638
1639 return &lport->lport_wwn;
1640out_lport:
1641 vfree(lport->lport_loopid_map);
1642 btree_destroy32(&lport->lport_fcport_map);
1643out:
1644 kfree(lport);
1645 return ERR_PTR(ret);
1646}
1647
1648static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1649{
1650 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1651 struct tcm_qla2xxx_lport, lport_wwn);
1652 struct scsi_qla_host *vha = lport->qla_vha;
1653 struct se_node_acl *node;
1654 u32 key = 0;
1655
1656
1657
1658
1659
1660
1661 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1662 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1663
1664 qlt_lport_deregister(vha);
1665
1666 vfree(lport->lport_loopid_map);
1667 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1668 btree_remove32(&lport->lport_fcport_map, key);
1669 btree_destroy32(&lport->lport_fcport_map);
1670 kfree(lport);
1671}
1672
1673static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1674 void *target_lport_ptr,
1675 u64 npiv_wwpn, u64 npiv_wwnn)
1676{
1677 struct fc_vport *vport;
1678 struct Scsi_Host *sh = base_vha->host;
1679 struct scsi_qla_host *npiv_vha;
1680 struct tcm_qla2xxx_lport *lport =
1681 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1682 struct tcm_qla2xxx_lport *base_lport =
1683 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1684 struct fc_vport_identifiers vport_id;
1685
1686 if (qla_ini_mode_enabled(base_vha)) {
1687 pr_err("qla2xxx base_vha not enabled for target mode\n");
1688 return -EPERM;
1689 }
1690
1691 if (!base_lport || !base_lport->tpg_1 ||
1692 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1693 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1694 return -EPERM;
1695 }
1696
1697 memset(&vport_id, 0, sizeof(vport_id));
1698 vport_id.port_name = npiv_wwpn;
1699 vport_id.node_name = npiv_wwnn;
1700 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1701 vport_id.vport_type = FC_PORTTYPE_NPIV;
1702 vport_id.disable = false;
1703
1704 vport = fc_vport_create(sh, 0, &vport_id);
1705 if (!vport) {
1706 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1707 return -ENODEV;
1708 }
1709
1710
1711
1712 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1713 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1714 lport->qla_vha = npiv_vha;
1715 scsi_host_get(npiv_vha->host);
1716 return 0;
1717}
1718
1719
1720static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1721 struct target_fabric_configfs *tf,
1722 struct config_group *group,
1723 const char *name)
1724{
1725 struct tcm_qla2xxx_lport *lport;
1726 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1727 char *p, tmp[128];
1728 int ret;
1729
1730 snprintf(tmp, 128, "%s", name);
1731
1732 p = strchr(tmp, '@');
1733 if (!p) {
1734 pr_err("Unable to locate NPIV '@' separator\n");
1735 return ERR_PTR(-EINVAL);
1736 }
1737 *p++ = '\0';
1738
1739 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1740 return ERR_PTR(-EINVAL);
1741
1742 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1743 &npiv_wwpn, &npiv_wwnn) < 0)
1744 return ERR_PTR(-EINVAL);
1745
1746 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1747 if (!lport) {
1748 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1749 return ERR_PTR(-ENOMEM);
1750 }
1751 lport->lport_npiv_wwpn = npiv_wwpn;
1752 lport->lport_npiv_wwnn = npiv_wwnn;
1753 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1754
1755 ret = tcm_qla2xxx_init_lport(lport);
1756 if (ret != 0)
1757 goto out;
1758
1759 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1760 tcm_qla2xxx_lport_register_npiv_cb);
1761 if (ret != 0)
1762 goto out_lport;
1763
1764 return &lport->lport_wwn;
1765out_lport:
1766 vfree(lport->lport_loopid_map);
1767 btree_destroy32(&lport->lport_fcport_map);
1768out:
1769 kfree(lport);
1770 return ERR_PTR(ret);
1771}
1772
1773static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1774{
1775 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1776 struct tcm_qla2xxx_lport, lport_wwn);
1777 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1778 struct qla_hw_data *ha = npiv_vha->hw;
1779 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1780
1781 scsi_host_put(npiv_vha->host);
1782
1783
1784
1785 fc_vport_terminate(npiv_vha->fc_vport);
1786 scsi_host_put(base_vha->host);
1787 kfree(lport);
1788}
1789
1790
1791static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1792 char *page)
1793{
1794 return sprintf(page,
1795 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1796 QLA2XXX_VERSION, utsname()->sysname,
1797 utsname()->machine, utsname()->release);
1798}
1799
1800CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1801
1802static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1803 &tcm_qla2xxx_wwn_attr_version,
1804 NULL,
1805};
1806
1807static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1808 .module = THIS_MODULE,
1809 .fabric_name = "qla2xxx",
1810 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1811
1812
1813
1814
1815 .max_data_sg_nents = 1200,
1816 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1817 .tpg_get_tag = tcm_qla2xxx_get_tag,
1818 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1819 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1820 .tpg_check_demo_mode_write_protect =
1821 tcm_qla2xxx_check_demo_write_protect,
1822 .tpg_check_prod_mode_write_protect =
1823 tcm_qla2xxx_check_prod_write_protect,
1824 .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
1825 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1826 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1827 .check_stop_free = tcm_qla2xxx_check_stop_free,
1828 .release_cmd = tcm_qla2xxx_release_cmd,
1829 .close_session = tcm_qla2xxx_close_session,
1830 .sess_get_index = tcm_qla2xxx_sess_get_index,
1831 .sess_get_initiator_sid = NULL,
1832 .write_pending = tcm_qla2xxx_write_pending,
1833 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1834 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1835 .queue_data_in = tcm_qla2xxx_queue_data_in,
1836 .queue_status = tcm_qla2xxx_queue_status,
1837 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1838 .aborted_task = tcm_qla2xxx_aborted_task,
1839
1840
1841
1842
1843 .fabric_make_wwn = tcm_qla2xxx_make_lport,
1844 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1845 .fabric_make_tpg = tcm_qla2xxx_make_tpg,
1846 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1847 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1848
1849 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1850 .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
1851 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1852};
1853
1854static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1855 .module = THIS_MODULE,
1856 .fabric_name = "qla2xxx_npiv",
1857 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1858 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1859 .tpg_get_tag = tcm_qla2xxx_get_tag,
1860 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1861 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1862 .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
1863 .tpg_check_prod_mode_write_protect =
1864 tcm_qla2xxx_check_prod_write_protect,
1865 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1866 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1867 .check_stop_free = tcm_qla2xxx_check_stop_free,
1868 .release_cmd = tcm_qla2xxx_release_cmd,
1869 .close_session = tcm_qla2xxx_close_session,
1870 .sess_get_index = tcm_qla2xxx_sess_get_index,
1871 .sess_get_initiator_sid = NULL,
1872 .write_pending = tcm_qla2xxx_write_pending,
1873 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1874 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1875 .queue_data_in = tcm_qla2xxx_queue_data_in,
1876 .queue_status = tcm_qla2xxx_queue_status,
1877 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1878 .aborted_task = tcm_qla2xxx_aborted_task,
1879
1880
1881
1882
1883 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1884 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1885 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1886 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1887 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1888
1889 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1890 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1891};
1892
1893static int tcm_qla2xxx_register_configfs(void)
1894{
1895 int ret;
1896
1897 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1898 QLA2XXX_VERSION, utsname()->sysname,
1899 utsname()->machine, utsname()->release);
1900
1901 ret = target_register_template(&tcm_qla2xxx_ops);
1902 if (ret)
1903 return ret;
1904
1905 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
1906 if (ret)
1907 goto out_fabric;
1908
1909 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
1910 WQ_MEM_RECLAIM, 0);
1911 if (!tcm_qla2xxx_free_wq) {
1912 ret = -ENOMEM;
1913 goto out_fabric_npiv;
1914 }
1915
1916 return 0;
1917
1918out_fabric_npiv:
1919 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1920out_fabric:
1921 target_unregister_template(&tcm_qla2xxx_ops);
1922 return ret;
1923}
1924
1925static void tcm_qla2xxx_deregister_configfs(void)
1926{
1927 destroy_workqueue(tcm_qla2xxx_free_wq);
1928
1929 target_unregister_template(&tcm_qla2xxx_ops);
1930 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1931}
1932
1933static int __init tcm_qla2xxx_init(void)
1934{
1935 int ret;
1936
1937 BUILD_BUG_ON(sizeof(struct abts_recv_from_24xx) != 64);
1938 BUILD_BUG_ON(sizeof(struct abts_resp_from_24xx_fw) != 64);
1939 BUILD_BUG_ON(sizeof(struct atio7_fcp_cmnd) != 32);
1940 BUILD_BUG_ON(sizeof(struct atio_from_isp) != 64);
1941 BUILD_BUG_ON(sizeof(struct ba_acc_le) != 12);
1942 BUILD_BUG_ON(sizeof(struct ba_rjt_le) != 4);
1943 BUILD_BUG_ON(sizeof(struct ctio7_from_24xx) != 64);
1944 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
1945 BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
1946 BUILD_BUG_ON(sizeof(struct ctio_crc_from_fw) != 64);
1947 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
1948 BUILD_BUG_ON(sizeof(struct fcp_hdr) != 24);
1949 BUILD_BUG_ON(sizeof(struct fcp_hdr_le) != 24);
1950 BUILD_BUG_ON(sizeof(struct nack_to_isp) != 64);
1951
1952 ret = tcm_qla2xxx_register_configfs();
1953 if (ret < 0)
1954 return ret;
1955
1956 return 0;
1957}
1958
1959static void __exit tcm_qla2xxx_exit(void)
1960{
1961 tcm_qla2xxx_deregister_configfs();
1962}
1963
1964MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
1965MODULE_LICENSE("GPL");
1966module_init(tcm_qla2xxx_init);
1967module_exit(tcm_qla2xxx_exit);
1968
