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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 struct scsi_qla_host *vha;
352 unsigned long flags;
353
354 BUG_ON(!sess);
355 vha = sess->vha;
356
357 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
358 target_sess_cmd_list_set_waiting(se_sess);
359 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
360
361 sess->explicit_logout = 1;
362 tcm_qla2xxx_put_sess(sess);
363}
364
365static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
366{
367 return 0;
368}
369
370static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
371{
372 struct qla_tgt_cmd *cmd = container_of(se_cmd,
373 struct qla_tgt_cmd, se_cmd);
374
375 if (cmd->aborted) {
376
377
378
379
380 pr_debug("write_pending aborted cmd[%p] refcount %d "
381 "transport_state %x, t_state %x, se_cmd_flags %x\n",
382 cmd, kref_read(&cmd->se_cmd.cmd_kref),
383 cmd->se_cmd.transport_state,
384 cmd->se_cmd.t_state,
385 cmd->se_cmd.se_cmd_flags);
386 transport_generic_request_failure(&cmd->se_cmd,
387 TCM_CHECK_CONDITION_ABORT_CMD);
388 return 0;
389 }
390 cmd->trc_flags |= TRC_XFR_RDY;
391 cmd->bufflen = se_cmd->data_length;
392 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
393
394 cmd->sg_cnt = se_cmd->t_data_nents;
395 cmd->sg = se_cmd->t_data_sg;
396
397 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
398 cmd->prot_sg = se_cmd->t_prot_sg;
399 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
400 se_cmd->pi_err = 0;
401
402
403
404
405
406 return qlt_rdy_to_xfer(cmd);
407}
408
409static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
410{
411 return;
412}
413
414static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
415{
416 if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
417 struct qla_tgt_cmd *cmd = container_of(se_cmd,
418 struct qla_tgt_cmd, se_cmd);
419 return cmd->state;
420 }
421
422 return 0;
423}
424
425
426
427
428static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
429 unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
430 int data_dir, int bidi)
431{
432 struct se_cmd *se_cmd = &cmd->se_cmd;
433 struct se_session *se_sess;
434 struct fc_port *sess;
435#ifdef CONFIG_TCM_QLA2XXX_DEBUG
436 struct se_portal_group *se_tpg;
437 struct tcm_qla2xxx_tpg *tpg;
438#endif
439 int flags = TARGET_SCF_ACK_KREF;
440
441 if (bidi)
442 flags |= TARGET_SCF_BIDI_OP;
443
444 if (se_cmd->cpuid != WORK_CPU_UNBOUND)
445 flags |= TARGET_SCF_USE_CPUID;
446
447 sess = cmd->sess;
448 if (!sess) {
449 pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
450 return -EINVAL;
451 }
452
453 se_sess = sess->se_sess;
454 if (!se_sess) {
455 pr_err("Unable to locate active struct se_session\n");
456 return -EINVAL;
457 }
458
459#ifdef CONFIG_TCM_QLA2XXX_DEBUG
460 se_tpg = se_sess->se_tpg;
461 tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
462 if (unlikely(tpg->tpg_attrib.jam_host)) {
463
464 return 0;
465 }
466#endif
467
468 cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
469 return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
470 cmd->unpacked_lun, data_length, fcp_task_attr,
471 data_dir, flags);
472}
473
474static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
475{
476 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
477
478
479
480
481
482 cmd->cmd_in_wq = 0;
483 cmd->cmd_sent_to_fw = 0;
484 if (cmd->aborted) {
485 transport_generic_request_failure(&cmd->se_cmd,
486 TCM_CHECK_CONDITION_ABORT_CMD);
487 return;
488 }
489
490 cmd->qpair->tgt_counters.qla_core_ret_ctio++;
491 if (!cmd->write_data_transferred) {
492 switch (cmd->dif_err_code) {
493 case DIF_ERR_GRD:
494 cmd->se_cmd.pi_err =
495 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
496 break;
497 case DIF_ERR_REF:
498 cmd->se_cmd.pi_err =
499 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
500 break;
501 case DIF_ERR_APP:
502 cmd->se_cmd.pi_err =
503 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
504 break;
505 case DIF_ERR_NONE:
506 default:
507 break;
508 }
509
510 if (cmd->se_cmd.pi_err)
511 transport_generic_request_failure(&cmd->se_cmd,
512 cmd->se_cmd.pi_err);
513 else
514 transport_generic_request_failure(&cmd->se_cmd,
515 TCM_CHECK_CONDITION_ABORT_CMD);
516
517 return;
518 }
519
520 return target_execute_cmd(&cmd->se_cmd);
521}
522
523
524
525
526static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
527{
528 cmd->trc_flags |= TRC_DATA_IN;
529 cmd->cmd_in_wq = 1;
530 INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
531 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
532}
533
534static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
535{
536 return 0;
537}
538
539static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
540 uint16_t *pfw_prot_opts)
541{
542 struct se_cmd *se_cmd = &cmd->se_cmd;
543
544 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
545 *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
546
547 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
548 *pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
549
550 return 0;
551}
552
553
554
555
556static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
557 uint16_t tmr_func, uint32_t tag)
558{
559 struct fc_port *sess = mcmd->sess;
560 struct se_cmd *se_cmd = &mcmd->se_cmd;
561 int transl_tmr_func = 0;
562 int flags = TARGET_SCF_ACK_KREF;
563
564 switch (tmr_func) {
565 case QLA_TGT_ABTS:
566 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
567 transl_tmr_func = TMR_ABORT_TASK;
568 flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG;
569 break;
570 case QLA_TGT_2G_ABORT_TASK:
571 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
572 transl_tmr_func = TMR_ABORT_TASK;
573 break;
574 case QLA_TGT_CLEAR_ACA:
575 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
576 transl_tmr_func = TMR_CLEAR_ACA;
577 break;
578 case QLA_TGT_TARGET_RESET:
579 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
580 transl_tmr_func = TMR_TARGET_WARM_RESET;
581 break;
582 case QLA_TGT_LUN_RESET:
583 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
584 transl_tmr_func = TMR_LUN_RESET;
585 break;
586 case QLA_TGT_CLEAR_TS:
587 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
588 transl_tmr_func = TMR_CLEAR_TASK_SET;
589 break;
590 case QLA_TGT_ABORT_TS:
591 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
592 transl_tmr_func = TMR_ABORT_TASK_SET;
593 break;
594 default:
595 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
596 sess->vha->host_no, tmr_func);
597 return -ENOSYS;
598 }
599
600 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
601 transl_tmr_func, GFP_ATOMIC, tag, flags);
602}
603
604static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess,
605 uint64_t tag)
606{
607 struct qla_tgt_cmd *cmd = NULL;
608 struct se_cmd *secmd;
609 unsigned long flags;
610
611 if (!sess->se_sess)
612 return NULL;
613
614 spin_lock_irqsave(&sess->se_sess->sess_cmd_lock, flags);
615 list_for_each_entry(secmd, &sess->se_sess->sess_cmd_list, se_cmd_list) {
616
617 if (secmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
618 continue;
619
620 if (secmd->tag == tag) {
621 cmd = container_of(secmd, struct qla_tgt_cmd, se_cmd);
622 break;
623 }
624 }
625 spin_unlock_irqrestore(&sess->se_sess->sess_cmd_lock, flags);
626
627 return cmd;
628}
629
630static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
631{
632 struct qla_tgt_cmd *cmd = container_of(se_cmd,
633 struct qla_tgt_cmd, se_cmd);
634 struct scsi_qla_host *vha = cmd->vha;
635
636 if (cmd->aborted) {
637
638
639
640
641 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
642 "transport_state %x, t_state %x, se_cmd_flags %x\n",
643 cmd, kref_read(&cmd->se_cmd.cmd_kref),
644 cmd->se_cmd.transport_state,
645 cmd->se_cmd.t_state,
646 cmd->se_cmd.se_cmd_flags);
647 vha->hw->tgt.tgt_ops->free_cmd(cmd);
648 return 0;
649 }
650
651 cmd->trc_flags |= TRC_XMIT_DATA;
652 cmd->bufflen = se_cmd->data_length;
653 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
654
655 cmd->sg_cnt = se_cmd->t_data_nents;
656 cmd->sg = se_cmd->t_data_sg;
657 cmd->offset = 0;
658
659 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
660 cmd->prot_sg = se_cmd->t_prot_sg;
661 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
662 se_cmd->pi_err = 0;
663
664
665
666
667 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
668 se_cmd->scsi_status);
669}
670
671static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
672{
673 struct qla_tgt_cmd *cmd = container_of(se_cmd,
674 struct qla_tgt_cmd, se_cmd);
675 struct scsi_qla_host *vha = cmd->vha;
676 int xmit_type = QLA_TGT_XMIT_STATUS;
677
678 if (cmd->aborted) {
679
680
681
682
683
684 pr_debug(
685 "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
686 cmd, kref_read(&cmd->se_cmd.cmd_kref),
687 cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
688 cmd->se_cmd.se_cmd_flags);
689 vha->hw->tgt.tgt_ops->free_cmd(cmd);
690 return 0;
691 }
692 cmd->bufflen = se_cmd->data_length;
693 cmd->sg = NULL;
694 cmd->sg_cnt = 0;
695 cmd->offset = 0;
696 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
697 cmd->trc_flags |= TRC_XMIT_STATUS;
698
699 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
700
701
702
703
704 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
705 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
706 se_cmd->residual_count = 0;
707 }
708 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
709 se_cmd->residual_count += se_cmd->data_length;
710
711 cmd->bufflen = 0;
712 }
713
714
715
716 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
717}
718
719static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
720{
721 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
722 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
723 struct qla_tgt_mgmt_cmd, se_cmd);
724
725 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
726 mcmd, se_tmr->function, se_tmr->response);
727
728
729
730
731 switch (se_tmr->response) {
732 case TMR_FUNCTION_COMPLETE:
733 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
734 break;
735 case TMR_TASK_DOES_NOT_EXIST:
736 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
737 break;
738 case TMR_FUNCTION_REJECTED:
739 mcmd->fc_tm_rsp = FC_TM_REJECT;
740 break;
741 case TMR_LUN_DOES_NOT_EXIST:
742 default:
743 mcmd->fc_tm_rsp = FC_TM_FAILED;
744 break;
745 }
746
747
748
749
750 qlt_xmit_tm_rsp(mcmd);
751}
752
753static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
754{
755 struct qla_tgt_cmd *cmd = container_of(se_cmd,
756 struct qla_tgt_cmd, se_cmd);
757
758 if (qlt_abort_cmd(cmd))
759 return;
760}
761
762static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
763 struct tcm_qla2xxx_nacl *, struct fc_port *);
764
765
766
767static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
768{
769 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
770 struct se_portal_group *se_tpg = se_nacl->se_tpg;
771 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
772 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
773 struct tcm_qla2xxx_lport, lport_wwn);
774 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
775 struct tcm_qla2xxx_nacl, se_node_acl);
776 void *node;
777
778 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
779
780 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
781 if (WARN_ON(node && (node != se_nacl))) {
782
783
784
785
786
787
788 btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
789 node, GFP_ATOMIC);
790 }
791
792 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
793 se_nacl, nacl->nport_wwnn, nacl->nport_id);
794
795
796
797
798
799
800
801
802
803 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
804}
805
806static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
807{
808 target_sess_cmd_list_set_waiting(sess->se_sess);
809}
810
811static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
812 const char *name)
813{
814 struct tcm_qla2xxx_nacl *nacl =
815 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
816 u64 wwnn;
817
818 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
819 return -EINVAL;
820
821 nacl->nport_wwnn = wwnn;
822 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
823
824 return 0;
825}
826
827
828
829#define DEF_QLA_TPG_ATTRIB(name) \
830 \
831static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
832 struct config_item *item, char *page) \
833{ \
834 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
835 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
836 struct tcm_qla2xxx_tpg, se_tpg); \
837 \
838 return sprintf(page, "%d\n", tpg->tpg_attrib.name); \
839} \
840 \
841static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
842 struct config_item *item, const char *page, size_t count) \
843{ \
844 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
845 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
846 struct tcm_qla2xxx_tpg, se_tpg); \
847 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
848 unsigned long val; \
849 int ret; \
850 \
851 ret = kstrtoul(page, 0, &val); \
852 if (ret < 0) { \
853 pr_err("kstrtoul() failed with" \
854 " ret: %d\n", ret); \
855 return -EINVAL; \
856 } \
857 \
858 if ((val != 0) && (val != 1)) { \
859 pr_err("Illegal boolean value %lu\n", val); \
860 return -EINVAL; \
861 } \
862 \
863 a->name = val; \
864 \
865 return count; \
866} \
867CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
868
869DEF_QLA_TPG_ATTRIB(generate_node_acls);
870DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
871DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
872DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
873DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
874#ifdef CONFIG_TCM_QLA2XXX_DEBUG
875DEF_QLA_TPG_ATTRIB(jam_host);
876#endif
877
878static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
879 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
880 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
881 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
882 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
883 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
884#ifdef CONFIG_TCM_QLA2XXX_DEBUG
885 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
886#endif
887 NULL,
888};
889
890
891
892static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
893 char *page)
894{
895 struct se_portal_group *se_tpg = to_tpg(item);
896 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
897 struct tcm_qla2xxx_tpg, se_tpg);
898
899 return snprintf(page, PAGE_SIZE, "%d\n",
900 atomic_read(&tpg->lport_tpg_enabled));
901}
902
903static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
904 const char *page, size_t count)
905{
906 struct se_portal_group *se_tpg = to_tpg(item);
907 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
908 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
909 struct tcm_qla2xxx_lport, lport_wwn);
910 struct scsi_qla_host *vha = lport->qla_vha;
911 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
912 struct tcm_qla2xxx_tpg, se_tpg);
913 unsigned long op;
914 int rc;
915
916 rc = kstrtoul(page, 0, &op);
917 if (rc < 0) {
918 pr_err("kstrtoul() returned %d\n", rc);
919 return -EINVAL;
920 }
921 if ((op != 1) && (op != 0)) {
922 pr_err("Illegal value for tpg_enable: %lu\n", op);
923 return -EINVAL;
924 }
925 if (op) {
926 if (atomic_read(&tpg->lport_tpg_enabled))
927 return -EEXIST;
928
929 atomic_set(&tpg->lport_tpg_enabled, 1);
930 qlt_enable_vha(vha);
931 } else {
932 if (!atomic_read(&tpg->lport_tpg_enabled))
933 return count;
934
935 atomic_set(&tpg->lport_tpg_enabled, 0);
936 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
937 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
938 }
939
940 return count;
941}
942
943static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
944 char *page)
945{
946 return target_show_dynamic_sessions(to_tpg(item), page);
947}
948
949static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
950 const char *page, size_t count)
951{
952 struct se_portal_group *se_tpg = to_tpg(item);
953 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
954 struct tcm_qla2xxx_tpg, se_tpg);
955 unsigned long val;
956 int ret = kstrtoul(page, 0, &val);
957
958 if (ret) {
959 pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
960 return ret;
961 }
962 if (val != 0 && val != 1 && val != 3) {
963 pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
964 return -EINVAL;
965 }
966 tpg->tpg_attrib.fabric_prot_type = val;
967
968 return count;
969}
970
971static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
972 char *page)
973{
974 struct se_portal_group *se_tpg = to_tpg(item);
975 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
976 struct tcm_qla2xxx_tpg, se_tpg);
977
978 return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
979}
980
981CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable);
982CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
983CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
984
985static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
986 &tcm_qla2xxx_tpg_attr_enable,
987 &tcm_qla2xxx_tpg_attr_dynamic_sessions,
988 &tcm_qla2xxx_tpg_attr_fabric_prot_type,
989 NULL,
990};
991
992static struct se_portal_group *tcm_qla2xxx_make_tpg(struct se_wwn *wwn,
993 const char *name)
994{
995 struct tcm_qla2xxx_lport *lport = container_of(wwn,
996 struct tcm_qla2xxx_lport, lport_wwn);
997 struct tcm_qla2xxx_tpg *tpg;
998 unsigned long tpgt;
999 int ret;
1000
1001 if (strstr(name, "tpgt_") != name)
1002 return ERR_PTR(-EINVAL);
1003 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1004 return ERR_PTR(-EINVAL);
1005
1006 if ((tpgt != 1)) {
1007 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
1008 return ERR_PTR(-ENOSYS);
1009 }
1010
1011 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1012 if (!tpg) {
1013 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1014 return ERR_PTR(-ENOMEM);
1015 }
1016 tpg->lport = lport;
1017 tpg->lport_tpgt = tpgt;
1018
1019
1020
1021
1022 tpg->tpg_attrib.generate_node_acls = 1;
1023 tpg->tpg_attrib.demo_mode_write_protect = 1;
1024 tpg->tpg_attrib.cache_dynamic_acls = 1;
1025 tpg->tpg_attrib.demo_mode_login_only = 1;
1026 tpg->tpg_attrib.jam_host = 0;
1027
1028 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1029 if (ret < 0) {
1030 kfree(tpg);
1031 return NULL;
1032 }
1033
1034 lport->tpg_1 = tpg;
1035
1036 return &tpg->se_tpg;
1037}
1038
1039static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1040{
1041 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1042 struct tcm_qla2xxx_tpg, se_tpg);
1043 struct tcm_qla2xxx_lport *lport = tpg->lport;
1044 struct scsi_qla_host *vha = lport->qla_vha;
1045
1046
1047
1048
1049 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1050 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1051
1052 core_tpg_deregister(se_tpg);
1053
1054
1055
1056 lport->tpg_1 = NULL;
1057 kfree(tpg);
1058}
1059
1060static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1061 char *page)
1062{
1063 return tcm_qla2xxx_tpg_enable_show(item, page);
1064}
1065
1066static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1067 const char *page, size_t count)
1068{
1069 struct se_portal_group *se_tpg = to_tpg(item);
1070 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1071 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1072 struct tcm_qla2xxx_lport, lport_wwn);
1073 struct scsi_qla_host *vha = lport->qla_vha;
1074 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1075 struct tcm_qla2xxx_tpg, se_tpg);
1076 unsigned long op;
1077 int rc;
1078
1079 rc = kstrtoul(page, 0, &op);
1080 if (rc < 0) {
1081 pr_err("kstrtoul() returned %d\n", rc);
1082 return -EINVAL;
1083 }
1084 if ((op != 1) && (op != 0)) {
1085 pr_err("Illegal value for tpg_enable: %lu\n", op);
1086 return -EINVAL;
1087 }
1088 if (op) {
1089 if (atomic_read(&tpg->lport_tpg_enabled))
1090 return -EEXIST;
1091
1092 atomic_set(&tpg->lport_tpg_enabled, 1);
1093 qlt_enable_vha(vha);
1094 } else {
1095 if (!atomic_read(&tpg->lport_tpg_enabled))
1096 return count;
1097
1098 atomic_set(&tpg->lport_tpg_enabled, 0);
1099 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1100 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1101 }
1102
1103 return count;
1104}
1105
1106CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1107
1108static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1109 &tcm_qla2xxx_npiv_tpg_attr_enable,
1110 NULL,
1111};
1112
1113static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(struct se_wwn *wwn,
1114 const char *name)
1115{
1116 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1117 struct tcm_qla2xxx_lport, lport_wwn);
1118 struct tcm_qla2xxx_tpg *tpg;
1119 unsigned long tpgt;
1120 int ret;
1121
1122 if (strstr(name, "tpgt_") != name)
1123 return ERR_PTR(-EINVAL);
1124 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1125 return ERR_PTR(-EINVAL);
1126
1127 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1128 if (!tpg) {
1129 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1130 return ERR_PTR(-ENOMEM);
1131 }
1132 tpg->lport = lport;
1133 tpg->lport_tpgt = tpgt;
1134
1135
1136
1137
1138
1139 tpg->tpg_attrib.generate_node_acls = 1;
1140 tpg->tpg_attrib.demo_mode_write_protect = 1;
1141 tpg->tpg_attrib.cache_dynamic_acls = 1;
1142 tpg->tpg_attrib.demo_mode_login_only = 1;
1143
1144 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1145 if (ret < 0) {
1146 kfree(tpg);
1147 return NULL;
1148 }
1149 lport->tpg_1 = tpg;
1150 return &tpg->se_tpg;
1151}
1152
1153
1154
1155
1156static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(scsi_qla_host_t *vha,
1157 const be_id_t s_id)
1158{
1159 struct tcm_qla2xxx_lport *lport;
1160 struct se_node_acl *se_nacl;
1161 struct tcm_qla2xxx_nacl *nacl;
1162 u32 key;
1163
1164 lport = vha->vha_tgt.target_lport_ptr;
1165 if (!lport) {
1166 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1167 dump_stack();
1168 return NULL;
1169 }
1170
1171 key = sid_to_key(s_id);
1172 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1173
1174 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1175 if (!se_nacl) {
1176 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1177 return NULL;
1178 }
1179 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1180 se_nacl, se_nacl->initiatorname);
1181
1182 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1183 if (!nacl->fc_port) {
1184 pr_err("Unable to locate struct fc_port\n");
1185 return NULL;
1186 }
1187
1188 return nacl->fc_port;
1189}
1190
1191
1192
1193
1194static void tcm_qla2xxx_set_sess_by_s_id(
1195 struct tcm_qla2xxx_lport *lport,
1196 struct se_node_acl *new_se_nacl,
1197 struct tcm_qla2xxx_nacl *nacl,
1198 struct se_session *se_sess,
1199 struct fc_port *fc_port,
1200 be_id_t s_id)
1201{
1202 u32 key;
1203 void *slot;
1204 int rc;
1205
1206 key = sid_to_key(s_id);
1207 pr_debug("set_sess_by_s_id: %06x\n", key);
1208
1209 slot = btree_lookup32(&lport->lport_fcport_map, key);
1210 if (!slot) {
1211 if (new_se_nacl) {
1212 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1213 nacl->nport_id = key;
1214 rc = btree_insert32(&lport->lport_fcport_map, key,
1215 new_se_nacl, GFP_ATOMIC);
1216 if (rc)
1217 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1218 (int)key);
1219 } else {
1220 pr_debug("Wiping nonexisting fc_port entry\n");
1221 }
1222
1223 fc_port->se_sess = se_sess;
1224 nacl->fc_port = fc_port;
1225 return;
1226 }
1227
1228 if (nacl->fc_port) {
1229 if (new_se_nacl == NULL) {
1230 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1231 btree_remove32(&lport->lport_fcport_map, key);
1232 nacl->fc_port = NULL;
1233 return;
1234 }
1235 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1236 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1237 fc_port->se_sess = se_sess;
1238 nacl->fc_port = fc_port;
1239 return;
1240 }
1241
1242 if (new_se_nacl == NULL) {
1243 pr_debug("Clearing existing fc_port entry\n");
1244 btree_remove32(&lport->lport_fcport_map, key);
1245 return;
1246 }
1247
1248 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1249 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1250 fc_port->se_sess = se_sess;
1251 nacl->fc_port = fc_port;
1252
1253 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1254 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1255}
1256
1257
1258
1259
1260static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1261 scsi_qla_host_t *vha,
1262 const uint16_t loop_id)
1263{
1264 struct tcm_qla2xxx_lport *lport;
1265 struct se_node_acl *se_nacl;
1266 struct tcm_qla2xxx_nacl *nacl;
1267 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1268
1269 lport = vha->vha_tgt.target_lport_ptr;
1270 if (!lport) {
1271 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1272 dump_stack();
1273 return NULL;
1274 }
1275
1276 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1277
1278 fc_loopid = lport->lport_loopid_map + loop_id;
1279 se_nacl = fc_loopid->se_nacl;
1280 if (!se_nacl) {
1281 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1282 loop_id);
1283 return NULL;
1284 }
1285
1286 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1287
1288 if (!nacl->fc_port) {
1289 pr_err("Unable to locate struct fc_port\n");
1290 return NULL;
1291 }
1292
1293 return nacl->fc_port;
1294}
1295
1296
1297
1298
1299static void tcm_qla2xxx_set_sess_by_loop_id(
1300 struct tcm_qla2xxx_lport *lport,
1301 struct se_node_acl *new_se_nacl,
1302 struct tcm_qla2xxx_nacl *nacl,
1303 struct se_session *se_sess,
1304 struct fc_port *fc_port,
1305 uint16_t loop_id)
1306{
1307 struct se_node_acl *saved_nacl;
1308 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1309
1310 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1311
1312 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1313 lport->lport_loopid_map)[loop_id];
1314
1315 saved_nacl = fc_loopid->se_nacl;
1316 if (!saved_nacl) {
1317 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1318 fc_loopid->se_nacl = new_se_nacl;
1319 if (fc_port->se_sess != se_sess)
1320 fc_port->se_sess = se_sess;
1321 if (nacl->fc_port != fc_port)
1322 nacl->fc_port = fc_port;
1323 return;
1324 }
1325
1326 if (nacl->fc_port) {
1327 if (new_se_nacl == NULL) {
1328 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1329 fc_loopid->se_nacl = NULL;
1330 nacl->fc_port = NULL;
1331 return;
1332 }
1333
1334 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1335 fc_loopid->se_nacl = new_se_nacl;
1336 if (fc_port->se_sess != se_sess)
1337 fc_port->se_sess = se_sess;
1338 if (nacl->fc_port != fc_port)
1339 nacl->fc_port = fc_port;
1340 return;
1341 }
1342
1343 if (new_se_nacl == NULL) {
1344 pr_debug("Clearing fc_loopid->se_nacl\n");
1345 fc_loopid->se_nacl = NULL;
1346 return;
1347 }
1348
1349 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1350 fc_loopid->se_nacl = new_se_nacl;
1351 if (fc_port->se_sess != se_sess)
1352 fc_port->se_sess = se_sess;
1353 if (nacl->fc_port != fc_port)
1354 nacl->fc_port = fc_port;
1355
1356 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1357 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1358}
1359
1360
1361
1362
1363static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1364 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1365{
1366 struct se_session *se_sess = sess->se_sess;
1367
1368 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1369 sess, port_id_to_be_id(sess->d_id));
1370 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1371 sess, sess->loop_id);
1372}
1373
1374static void tcm_qla2xxx_free_session(struct fc_port *sess)
1375{
1376 struct qla_tgt *tgt = sess->tgt;
1377 struct qla_hw_data *ha = tgt->ha;
1378 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1379 struct se_session *se_sess;
1380 struct tcm_qla2xxx_lport *lport;
1381
1382 BUG_ON(in_interrupt());
1383
1384 se_sess = sess->se_sess;
1385 if (!se_sess) {
1386 pr_err("struct fc_port->se_sess is NULL\n");
1387 dump_stack();
1388 return;
1389 }
1390
1391 lport = vha->vha_tgt.target_lport_ptr;
1392 if (!lport) {
1393 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1394 dump_stack();
1395 return;
1396 }
1397 target_wait_for_sess_cmds(se_sess);
1398
1399 target_remove_session(se_sess);
1400}
1401
1402static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
1403 struct se_session *se_sess, void *p)
1404{
1405 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1406 struct tcm_qla2xxx_tpg, se_tpg);
1407 struct tcm_qla2xxx_lport *lport = tpg->lport;
1408 struct qla_hw_data *ha = lport->qla_vha->hw;
1409 struct se_node_acl *se_nacl = se_sess->se_node_acl;
1410 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1411 struct tcm_qla2xxx_nacl, se_node_acl);
1412 struct fc_port *qlat_sess = p;
1413 uint16_t loop_id = qlat_sess->loop_id;
1414 unsigned long flags;
1415
1416
1417
1418
1419
1420 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1421 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, qlat_sess,
1422 port_id_to_be_id(qlat_sess->d_id));
1423 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
1424 se_sess, qlat_sess, loop_id);
1425 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1426
1427 return 0;
1428}
1429
1430
1431
1432
1433
1434static int tcm_qla2xxx_check_initiator_node_acl(
1435 scsi_qla_host_t *vha,
1436 unsigned char *fc_wwpn,
1437 struct fc_port *qlat_sess)
1438{
1439 struct qla_hw_data *ha = vha->hw;
1440 struct tcm_qla2xxx_lport *lport;
1441 struct tcm_qla2xxx_tpg *tpg;
1442 struct se_session *se_sess;
1443 unsigned char port_name[36];
1444 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1445 TCM_QLA2XXX_DEFAULT_TAGS;
1446
1447 lport = vha->vha_tgt.target_lport_ptr;
1448 if (!lport) {
1449 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1450 dump_stack();
1451 return -EINVAL;
1452 }
1453
1454
1455
1456 tpg = lport->tpg_1;
1457 if (!tpg) {
1458 pr_err("Unable to locate struct tcm_qla2xxx_lport->tpg_1\n");
1459 return -EINVAL;
1460 }
1461
1462
1463
1464
1465 memset(&port_name, 0, 36);
1466 snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
1467
1468
1469
1470
1471 se_sess = target_setup_session(&tpg->se_tpg, num_tags,
1472 sizeof(struct qla_tgt_cmd),
1473 TARGET_PROT_ALL, port_name,
1474 qlat_sess, tcm_qla2xxx_session_cb);
1475 if (IS_ERR(se_sess))
1476 return PTR_ERR(se_sess);
1477
1478 return 0;
1479}
1480
1481static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1482 uint16_t loop_id, bool conf_compl_supported)
1483{
1484 struct qla_tgt *tgt = sess->tgt;
1485 struct qla_hw_data *ha = tgt->ha;
1486 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1487 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1488 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1489 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1490 struct tcm_qla2xxx_nacl, se_node_acl);
1491 u32 key;
1492
1493
1494 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1495 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1496 sess, sess->port_name,
1497 sess->loop_id, loop_id, sess->d_id.b.domain,
1498 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1499 s_id.b.area, s_id.b.al_pa);
1500
1501 if (sess->loop_id != loop_id) {
1502
1503
1504
1505
1506
1507
1508
1509
1510 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1511 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1512
1513 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1514
1515 sess->loop_id = loop_id;
1516 }
1517
1518 if (sess->d_id.b24 != s_id.b24) {
1519 key = (((u32) sess->d_id.b.domain << 16) |
1520 ((u32) sess->d_id.b.area << 8) |
1521 ((u32) sess->d_id.b.al_pa));
1522
1523 if (btree_lookup32(&lport->lport_fcport_map, key))
1524 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1525 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1526 sess->d_id.b.domain, sess->d_id.b.area,
1527 sess->d_id.b.al_pa);
1528 else
1529 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1530 sess->d_id.b.domain, sess->d_id.b.area,
1531 sess->d_id.b.al_pa);
1532
1533 key = (((u32) s_id.b.domain << 16) |
1534 ((u32) s_id.b.area << 8) |
1535 ((u32) s_id.b.al_pa));
1536
1537 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1538 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1539 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1540 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1541 } else {
1542 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1543 GFP_ATOMIC);
1544 }
1545
1546 sess->d_id = s_id;
1547 nacl->nport_id = key;
1548 }
1549
1550 sess->conf_compl_supported = conf_compl_supported;
1551
1552}
1553
1554
1555
1556
1557static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1558 .find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag,
1559 .handle_cmd = tcm_qla2xxx_handle_cmd,
1560 .handle_data = tcm_qla2xxx_handle_data,
1561 .handle_tmr = tcm_qla2xxx_handle_tmr,
1562 .free_cmd = tcm_qla2xxx_free_cmd,
1563 .free_mcmd = tcm_qla2xxx_free_mcmd,
1564 .free_session = tcm_qla2xxx_free_session,
1565 .update_sess = tcm_qla2xxx_update_sess,
1566 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1567 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1568 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1569 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1570 .put_sess = tcm_qla2xxx_put_sess,
1571 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1572 .get_dif_tags = tcm_qla2xxx_dif_tags,
1573 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1574};
1575
1576static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1577{
1578 int rc;
1579
1580 rc = btree_init32(&lport->lport_fcport_map);
1581 if (rc) {
1582 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1583 return rc;
1584 }
1585
1586 lport->lport_loopid_map =
1587 vzalloc(array_size(65536,
1588 sizeof(struct tcm_qla2xxx_fc_loopid)));
1589 if (!lport->lport_loopid_map) {
1590 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1591 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1592 btree_destroy32(&lport->lport_fcport_map);
1593 return -ENOMEM;
1594 }
1595 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1596 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1597 return 0;
1598}
1599
1600static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1601 void *target_lport_ptr,
1602 u64 npiv_wwpn, u64 npiv_wwnn)
1603{
1604 struct qla_hw_data *ha = vha->hw;
1605 struct tcm_qla2xxx_lport *lport =
1606 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1607
1608
1609
1610 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1611 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1612 lport->qla_vha = vha;
1613
1614 return 0;
1615}
1616
1617static struct se_wwn *tcm_qla2xxx_make_lport(
1618 struct target_fabric_configfs *tf,
1619 struct config_group *group,
1620 const char *name)
1621{
1622 struct tcm_qla2xxx_lport *lport;
1623 u64 wwpn;
1624 int ret = -ENODEV;
1625
1626 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
1627 return ERR_PTR(-EINVAL);
1628
1629 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1630 if (!lport) {
1631 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1632 return ERR_PTR(-ENOMEM);
1633 }
1634 lport->lport_wwpn = wwpn;
1635 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1636 wwpn);
1637 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1638
1639 ret = tcm_qla2xxx_init_lport(lport);
1640 if (ret != 0)
1641 goto out;
1642
1643 ret = qlt_lport_register(lport, wwpn, 0, 0,
1644 tcm_qla2xxx_lport_register_cb);
1645 if (ret != 0)
1646 goto out_lport;
1647
1648 return &lport->lport_wwn;
1649out_lport:
1650 vfree(lport->lport_loopid_map);
1651 btree_destroy32(&lport->lport_fcport_map);
1652out:
1653 kfree(lport);
1654 return ERR_PTR(ret);
1655}
1656
1657static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1658{
1659 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1660 struct tcm_qla2xxx_lport, lport_wwn);
1661 struct scsi_qla_host *vha = lport->qla_vha;
1662 struct se_node_acl *node;
1663 u32 key = 0;
1664
1665
1666
1667
1668
1669
1670 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1671 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1672
1673 qlt_lport_deregister(vha);
1674
1675 vfree(lport->lport_loopid_map);
1676 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1677 btree_remove32(&lport->lport_fcport_map, key);
1678 btree_destroy32(&lport->lport_fcport_map);
1679 kfree(lport);
1680}
1681
1682static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1683 void *target_lport_ptr,
1684 u64 npiv_wwpn, u64 npiv_wwnn)
1685{
1686 struct fc_vport *vport;
1687 struct Scsi_Host *sh = base_vha->host;
1688 struct scsi_qla_host *npiv_vha;
1689 struct tcm_qla2xxx_lport *lport =
1690 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1691 struct tcm_qla2xxx_lport *base_lport =
1692 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1693 struct fc_vport_identifiers vport_id;
1694
1695 if (qla_ini_mode_enabled(base_vha)) {
1696 pr_err("qla2xxx base_vha not enabled for target mode\n");
1697 return -EPERM;
1698 }
1699
1700 if (!base_lport || !base_lport->tpg_1 ||
1701 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1702 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1703 return -EPERM;
1704 }
1705
1706 memset(&vport_id, 0, sizeof(vport_id));
1707 vport_id.port_name = npiv_wwpn;
1708 vport_id.node_name = npiv_wwnn;
1709 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1710 vport_id.vport_type = FC_PORTTYPE_NPIV;
1711 vport_id.disable = false;
1712
1713 vport = fc_vport_create(sh, 0, &vport_id);
1714 if (!vport) {
1715 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1716 return -ENODEV;
1717 }
1718
1719
1720
1721 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1722 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1723 lport->qla_vha = npiv_vha;
1724 scsi_host_get(npiv_vha->host);
1725 return 0;
1726}
1727
1728
1729static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1730 struct target_fabric_configfs *tf,
1731 struct config_group *group,
1732 const char *name)
1733{
1734 struct tcm_qla2xxx_lport *lport;
1735 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1736 char *p, tmp[128];
1737 int ret;
1738
1739 snprintf(tmp, 128, "%s", name);
1740
1741 p = strchr(tmp, '@');
1742 if (!p) {
1743 pr_err("Unable to locate NPIV '@' separator\n");
1744 return ERR_PTR(-EINVAL);
1745 }
1746 *p++ = '\0';
1747
1748 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1749 return ERR_PTR(-EINVAL);
1750
1751 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1752 &npiv_wwpn, &npiv_wwnn) < 0)
1753 return ERR_PTR(-EINVAL);
1754
1755 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1756 if (!lport) {
1757 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1758 return ERR_PTR(-ENOMEM);
1759 }
1760 lport->lport_npiv_wwpn = npiv_wwpn;
1761 lport->lport_npiv_wwnn = npiv_wwnn;
1762 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1763
1764 ret = tcm_qla2xxx_init_lport(lport);
1765 if (ret != 0)
1766 goto out;
1767
1768 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1769 tcm_qla2xxx_lport_register_npiv_cb);
1770 if (ret != 0)
1771 goto out_lport;
1772
1773 return &lport->lport_wwn;
1774out_lport:
1775 vfree(lport->lport_loopid_map);
1776 btree_destroy32(&lport->lport_fcport_map);
1777out:
1778 kfree(lport);
1779 return ERR_PTR(ret);
1780}
1781
1782static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1783{
1784 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1785 struct tcm_qla2xxx_lport, lport_wwn);
1786 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1787 struct qla_hw_data *ha = npiv_vha->hw;
1788 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1789
1790 scsi_host_put(npiv_vha->host);
1791
1792
1793
1794 fc_vport_terminate(npiv_vha->fc_vport);
1795 scsi_host_put(base_vha->host);
1796 kfree(lport);
1797}
1798
1799
1800static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1801 char *page)
1802{
1803 return sprintf(page,
1804 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1805 QLA2XXX_VERSION, utsname()->sysname,
1806 utsname()->machine, utsname()->release);
1807}
1808
1809CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1810
1811static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1812 &tcm_qla2xxx_wwn_attr_version,
1813 NULL,
1814};
1815
1816static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1817 .module = THIS_MODULE,
1818 .fabric_name = "qla2xxx",
1819 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1820
1821
1822
1823
1824 .max_data_sg_nents = 1200,
1825 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1826 .tpg_get_tag = tcm_qla2xxx_get_tag,
1827 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1828 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1829 .tpg_check_demo_mode_write_protect =
1830 tcm_qla2xxx_check_demo_write_protect,
1831 .tpg_check_prod_mode_write_protect =
1832 tcm_qla2xxx_check_prod_write_protect,
1833 .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
1834 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1835 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1836 .check_stop_free = tcm_qla2xxx_check_stop_free,
1837 .release_cmd = tcm_qla2xxx_release_cmd,
1838 .close_session = tcm_qla2xxx_close_session,
1839 .sess_get_index = tcm_qla2xxx_sess_get_index,
1840 .sess_get_initiator_sid = NULL,
1841 .write_pending = tcm_qla2xxx_write_pending,
1842 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1843 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1844 .queue_data_in = tcm_qla2xxx_queue_data_in,
1845 .queue_status = tcm_qla2xxx_queue_status,
1846 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1847 .aborted_task = tcm_qla2xxx_aborted_task,
1848
1849
1850
1851
1852 .fabric_make_wwn = tcm_qla2xxx_make_lport,
1853 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1854 .fabric_make_tpg = tcm_qla2xxx_make_tpg,
1855 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1856 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1857
1858 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1859 .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
1860 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1861};
1862
1863static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1864 .module = THIS_MODULE,
1865 .fabric_name = "qla2xxx_npiv",
1866 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1867 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1868 .tpg_get_tag = tcm_qla2xxx_get_tag,
1869 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1870 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1871 .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
1872 .tpg_check_prod_mode_write_protect =
1873 tcm_qla2xxx_check_prod_write_protect,
1874 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1875 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1876 .check_stop_free = tcm_qla2xxx_check_stop_free,
1877 .release_cmd = tcm_qla2xxx_release_cmd,
1878 .close_session = tcm_qla2xxx_close_session,
1879 .sess_get_index = tcm_qla2xxx_sess_get_index,
1880 .sess_get_initiator_sid = NULL,
1881 .write_pending = tcm_qla2xxx_write_pending,
1882 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1883 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1884 .queue_data_in = tcm_qla2xxx_queue_data_in,
1885 .queue_status = tcm_qla2xxx_queue_status,
1886 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1887 .aborted_task = tcm_qla2xxx_aborted_task,
1888
1889
1890
1891
1892 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1893 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1894 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1895 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1896 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1897
1898 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1899 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1900};
1901
1902static int tcm_qla2xxx_register_configfs(void)
1903{
1904 int ret;
1905
1906 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1907 QLA2XXX_VERSION, utsname()->sysname,
1908 utsname()->machine, utsname()->release);
1909
1910 ret = target_register_template(&tcm_qla2xxx_ops);
1911 if (ret)
1912 return ret;
1913
1914 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
1915 if (ret)
1916 goto out_fabric;
1917
1918 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
1919 WQ_MEM_RECLAIM, 0);
1920 if (!tcm_qla2xxx_free_wq) {
1921 ret = -ENOMEM;
1922 goto out_fabric_npiv;
1923 }
1924
1925 return 0;
1926
1927out_fabric_npiv:
1928 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1929out_fabric:
1930 target_unregister_template(&tcm_qla2xxx_ops);
1931 return ret;
1932}
1933
1934static void tcm_qla2xxx_deregister_configfs(void)
1935{
1936 destroy_workqueue(tcm_qla2xxx_free_wq);
1937
1938 target_unregister_template(&tcm_qla2xxx_ops);
1939 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1940}
1941
1942static int __init tcm_qla2xxx_init(void)
1943{
1944 int ret;
1945
1946 BUILD_BUG_ON(sizeof(struct abts_recv_from_24xx) != 64);
1947 BUILD_BUG_ON(sizeof(struct abts_resp_from_24xx_fw) != 64);
1948 BUILD_BUG_ON(sizeof(struct atio7_fcp_cmnd) != 32);
1949 BUILD_BUG_ON(sizeof(struct atio_from_isp) != 64);
1950 BUILD_BUG_ON(sizeof(struct ba_acc_le) != 12);
1951 BUILD_BUG_ON(sizeof(struct ba_rjt_le) != 4);
1952 BUILD_BUG_ON(sizeof(struct ctio7_from_24xx) != 64);
1953 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
1954 BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
1955 BUILD_BUG_ON(sizeof(struct ctio_crc_from_fw) != 64);
1956 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
1957 BUILD_BUG_ON(sizeof(struct fcp_hdr) != 24);
1958 BUILD_BUG_ON(sizeof(struct fcp_hdr_le) != 24);
1959 BUILD_BUG_ON(sizeof(struct nack_to_isp) != 64);
1960
1961 ret = tcm_qla2xxx_register_configfs();
1962 if (ret < 0)
1963 return ret;
1964
1965 return 0;
1966}
1967
1968static void __exit tcm_qla2xxx_exit(void)
1969{
1970 tcm_qla2xxx_deregister_configfs();
1971}
1972
1973MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
1974MODULE_LICENSE("GPL");
1975module_init(tcm_qla2xxx_init);
1976module_exit(tcm_qla2xxx_exit);
1977
