1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29#include <linux/module.h>
30#include <linux/moduleparam.h>
31#include <linux/utsname.h>
32#include <linux/vmalloc.h>
33#include <linux/init.h>
34#include <linux/list.h>
35#include <linux/slab.h>
36#include <linux/kthread.h>
37#include <linux/types.h>
38#include <linux/string.h>
39#include <linux/configfs.h>
40#include <linux/ctype.h>
41#include <asm/unaligned.h>
42#include <scsi/scsi.h>
43#include <scsi/scsi_host.h>
44#include <scsi/scsi_device.h>
45#include <scsi/scsi_cmnd.h>
46#include <target/target_core_base.h>
47#include <target/target_core_fabric.h>
48
49#include "qla_def.h"
50#include "qla_target.h"
51#include "tcm_qla2xxx.h"
52
53static struct workqueue_struct *tcm_qla2xxx_free_wq;
54static struct workqueue_struct *tcm_qla2xxx_cmd_wq;
55
56
57
58
59
60
61
62static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
63{
64 const char *cp;
65 char c;
66 u32 nibble;
67 u32 byte = 0;
68 u32 pos = 0;
69 u32 err;
70
71 *wwn = 0;
72 for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
73 c = *cp;
74 if (c == '\n' && cp[1] == '\0')
75 continue;
76 if (strict && pos++ == 2 && byte++ < 7) {
77 pos = 0;
78 if (c == ':')
79 continue;
80 err = 1;
81 goto fail;
82 }
83 if (c == '\0') {
84 err = 2;
85 if (strict && byte != 8)
86 goto fail;
87 return cp - name;
88 }
89 err = 3;
90 if (isdigit(c))
91 nibble = c - '0';
92 else if (isxdigit(c) && (islower(c) || !strict))
93 nibble = tolower(c) - 'a' + 10;
94 else
95 goto fail;
96 *wwn = (*wwn << 4) | nibble;
97 }
98 err = 4;
99fail:
100 pr_debug("err %u len %zu pos %u byte %u\n",
101 err, cp - name, pos, byte);
102 return -1;
103}
104
105static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
106{
107 u8 b[8];
108
109 put_unaligned_be64(wwn, b);
110 return snprintf(buf, len,
111 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
112 b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
113}
114
115static char *tcm_qla2xxx_get_fabric_name(void)
116{
117 return "qla2xxx";
118}
119
120
121
122
123static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
124{
125 unsigned int i, j;
126 u8 wwn[8];
127
128 memset(wwn, 0, sizeof(wwn));
129
130
131 for (i = 0, j = 0; i < 16; i++) {
132 int value;
133
134 value = hex_to_bin(*ns++);
135 if (value >= 0)
136 j = (j << 4) | value;
137 else
138 return -EINVAL;
139
140 if (i % 2) {
141 wwn[i/2] = j & 0xff;
142 j = 0;
143 }
144 }
145
146 *nm = wwn_to_u64(wwn);
147 return 0;
148}
149
150
151
152
153
154static int tcm_qla2xxx_npiv_parse_wwn(
155 const char *name,
156 size_t count,
157 u64 *wwpn,
158 u64 *wwnn)
159{
160 unsigned int cnt = count;
161 int rc;
162
163 *wwpn = 0;
164 *wwnn = 0;
165
166
167 if (name[cnt-1] == '\n' || name[cnt-1] == 0)
168 cnt--;
169
170
171 if ((cnt != (16+1+16)) || (name[16] != ':'))
172 return -EINVAL;
173
174 rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
175 if (rc != 0)
176 return rc;
177
178 rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
179 if (rc != 0)
180 return rc;
181
182 return 0;
183}
184
185static char *tcm_qla2xxx_npiv_get_fabric_name(void)
186{
187 return "qla2xxx_npiv";
188}
189
190static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
191{
192 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
193 struct tcm_qla2xxx_tpg, se_tpg);
194 struct tcm_qla2xxx_lport *lport = tpg->lport;
195
196 return lport->lport_naa_name;
197}
198
199static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
200{
201 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
202 struct tcm_qla2xxx_tpg, se_tpg);
203 return tpg->lport_tpgt;
204}
205
206static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
207{
208 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
209 struct tcm_qla2xxx_tpg, se_tpg);
210
211 return tpg->tpg_attrib.generate_node_acls;
212}
213
214static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
215{
216 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
217 struct tcm_qla2xxx_tpg, se_tpg);
218
219 return tpg->tpg_attrib.cache_dynamic_acls;
220}
221
222static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
223{
224 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
225 struct tcm_qla2xxx_tpg, se_tpg);
226
227 return tpg->tpg_attrib.demo_mode_write_protect;
228}
229
230static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
231{
232 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
233 struct tcm_qla2xxx_tpg, se_tpg);
234
235 return tpg->tpg_attrib.prod_mode_write_protect;
236}
237
238static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg)
239{
240 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
241 struct tcm_qla2xxx_tpg, se_tpg);
242
243 return tpg->tpg_attrib.demo_mode_login_only;
244}
245
246static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
247{
248 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
249 struct tcm_qla2xxx_tpg, se_tpg);
250
251 return tpg->lport_tpgt;
252}
253
254static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
255{
256 struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
257 struct qla_tgt_mgmt_cmd, free_work);
258
259 transport_generic_free_cmd(&mcmd->se_cmd, 0);
260}
261
262
263
264
265
266
267static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
268{
269 INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
270 queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
271}
272
273static void tcm_qla2xxx_complete_free(struct work_struct *work)
274{
275 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
276
277 cmd->cmd_in_wq = 0;
278
279 WARN_ON(cmd->trc_flags & TRC_CMD_FREE);
280
281 cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
282 cmd->trc_flags |= TRC_CMD_FREE;
283 transport_generic_free_cmd(&cmd->se_cmd, 0);
284}
285
286
287
288
289
290
291static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
292{
293 cmd->qpair->tgt_counters.core_qla_free_cmd++;
294 cmd->cmd_in_wq = 1;
295
296 WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
297 cmd->trc_flags |= TRC_CMD_DONE;
298
299 INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
300 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
301}
302
303
304
305
306static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
307{
308 struct qla_tgt_cmd *cmd;
309
310 if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) {
311 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
312 cmd->trc_flags |= TRC_CMD_CHK_STOP;
313 }
314
315 return target_put_sess_cmd(se_cmd);
316}
317
318
319
320
321static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
322{
323 struct qla_tgt_cmd *cmd;
324
325 if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
326 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
327 struct qla_tgt_mgmt_cmd, se_cmd);
328 qlt_free_mcmd(mcmd);
329 return;
330 }
331
332 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
333 qlt_free_cmd(cmd);
334}
335
336static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess)
337{
338 struct fc_port *sess = se_sess->fabric_sess_ptr;
339 struct scsi_qla_host *vha;
340 unsigned long flags;
341
342 BUG_ON(!sess);
343 vha = sess->vha;
344
345 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
346 target_sess_cmd_list_set_waiting(se_sess);
347 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
348
349 return 1;
350}
351
352static void tcm_qla2xxx_close_session(struct se_session *se_sess)
353{
354 struct fc_port *sess = se_sess->fabric_sess_ptr;
355 struct scsi_qla_host *vha;
356 unsigned long flags;
357
358 BUG_ON(!sess);
359 vha = sess->vha;
360
361 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
362 qlt_unreg_sess(sess);
363 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
364}
365
366static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
367{
368 return 0;
369}
370
371
372
373
374
375
376
377
378
379
380static enum dma_data_direction tcm_qla2xxx_mapping_dir(struct se_cmd *se_cmd)
381{
382 if (se_cmd->se_cmd_flags & SCF_BIDI)
383 return DMA_BIDIRECTIONAL;
384
385 switch (se_cmd->data_direction) {
386 case DMA_TO_DEVICE:
387 return DMA_FROM_DEVICE;
388 case DMA_FROM_DEVICE:
389 return DMA_TO_DEVICE;
390 case DMA_NONE:
391 default:
392 return DMA_NONE;
393 }
394}
395
396static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
397{
398 struct qla_tgt_cmd *cmd = container_of(se_cmd,
399 struct qla_tgt_cmd, se_cmd);
400
401 if (cmd->aborted) {
402
403
404
405
406 pr_debug("write_pending aborted cmd[%p] refcount %d "
407 "transport_state %x, t_state %x, se_cmd_flags %x\n",
408 cmd, kref_read(&cmd->se_cmd.cmd_kref),
409 cmd->se_cmd.transport_state,
410 cmd->se_cmd.t_state,
411 cmd->se_cmd.se_cmd_flags);
412 return 0;
413 }
414 cmd->trc_flags |= TRC_XFR_RDY;
415 cmd->bufflen = se_cmd->data_length;
416 cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
417
418 cmd->sg_cnt = se_cmd->t_data_nents;
419 cmd->sg = se_cmd->t_data_sg;
420
421 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
422 cmd->prot_sg = se_cmd->t_prot_sg;
423 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
424 se_cmd->pi_err = 0;
425
426
427
428
429
430 return qlt_rdy_to_xfer(cmd);
431}
432
433static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd)
434{
435 unsigned long flags;
436
437
438
439
440 spin_lock_irqsave(&se_cmd->t_state_lock, flags);
441 if (se_cmd->t_state == TRANSPORT_WRITE_PENDING ||
442 se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) {
443 spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
444 wait_for_completion_timeout(&se_cmd->t_transport_stop_comp,
445 50);
446 return 0;
447 }
448 spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
449
450 return 0;
451}
452
453static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
454{
455 return;
456}
457
458static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
459{
460 if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
461 struct qla_tgt_cmd *cmd = container_of(se_cmd,
462 struct qla_tgt_cmd, se_cmd);
463 return cmd->state;
464 }
465
466 return 0;
467}
468
469
470
471
472static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
473 unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
474 int data_dir, int bidi)
475{
476 struct se_cmd *se_cmd = &cmd->se_cmd;
477 struct se_session *se_sess;
478 struct fc_port *sess;
479#ifdef CONFIG_TCM_QLA2XXX_DEBUG
480 struct se_portal_group *se_tpg;
481 struct tcm_qla2xxx_tpg *tpg;
482#endif
483 int flags = TARGET_SCF_ACK_KREF;
484
485 if (bidi)
486 flags |= TARGET_SCF_BIDI_OP;
487
488 sess = cmd->sess;
489 if (!sess) {
490 pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
491 return -EINVAL;
492 }
493
494 se_sess = sess->se_sess;
495 if (!se_sess) {
496 pr_err("Unable to locate active struct se_session\n");
497 return -EINVAL;
498 }
499
500#ifdef CONFIG_TCM_QLA2XXX_DEBUG
501 se_tpg = se_sess->se_tpg;
502 tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
503 if (unlikely(tpg->tpg_attrib.jam_host)) {
504
505 return 0;
506 }
507#endif
508
509 cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
510 return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
511 cmd->unpacked_lun, data_length, fcp_task_attr,
512 data_dir, flags);
513}
514
515static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
516{
517 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
518
519
520
521
522
523 cmd->cmd_in_wq = 0;
524
525 cmd->qpair->tgt_counters.qla_core_ret_ctio++;
526 if (!cmd->write_data_transferred) {
527
528
529
530
531 if (cmd->se_cmd.transport_state & CMD_T_ABORTED) {
532 complete(&cmd->se_cmd.t_transport_stop_comp);
533 return;
534 }
535
536 switch (cmd->dif_err_code) {
537 case DIF_ERR_GRD:
538 cmd->se_cmd.pi_err =
539 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
540 break;
541 case DIF_ERR_REF:
542 cmd->se_cmd.pi_err =
543 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
544 break;
545 case DIF_ERR_APP:
546 cmd->se_cmd.pi_err =
547 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
548 break;
549 case DIF_ERR_NONE:
550 default:
551 break;
552 }
553
554 if (cmd->se_cmd.pi_err)
555 transport_generic_request_failure(&cmd->se_cmd,
556 cmd->se_cmd.pi_err);
557 else
558 transport_generic_request_failure(&cmd->se_cmd,
559 TCM_CHECK_CONDITION_ABORT_CMD);
560
561 return;
562 }
563
564 return target_execute_cmd(&cmd->se_cmd);
565}
566
567
568
569
570static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
571{
572 cmd->trc_flags |= TRC_DATA_IN;
573 cmd->cmd_in_wq = 1;
574 INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
575 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
576}
577
578static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
579{
580 return 0;
581}
582
583static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
584 uint16_t *pfw_prot_opts)
585{
586 struct se_cmd *se_cmd = &cmd->se_cmd;
587
588 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
589 *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
590
591 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
592 *pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
593
594 return 0;
595}
596
597
598
599
600static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
601 uint16_t tmr_func, uint32_t tag)
602{
603 struct fc_port *sess = mcmd->sess;
604 struct se_cmd *se_cmd = &mcmd->se_cmd;
605 int transl_tmr_func = 0;
606
607 switch (tmr_func) {
608 case QLA_TGT_ABTS:
609 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
610 transl_tmr_func = TMR_ABORT_TASK;
611 break;
612 case QLA_TGT_2G_ABORT_TASK:
613 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
614 transl_tmr_func = TMR_ABORT_TASK;
615 break;
616 case QLA_TGT_CLEAR_ACA:
617 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
618 transl_tmr_func = TMR_CLEAR_ACA;
619 break;
620 case QLA_TGT_TARGET_RESET:
621 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
622 transl_tmr_func = TMR_TARGET_WARM_RESET;
623 break;
624 case QLA_TGT_LUN_RESET:
625 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
626 transl_tmr_func = TMR_LUN_RESET;
627 break;
628 case QLA_TGT_CLEAR_TS:
629 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
630 transl_tmr_func = TMR_CLEAR_TASK_SET;
631 break;
632 case QLA_TGT_ABORT_TS:
633 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
634 transl_tmr_func = TMR_ABORT_TASK_SET;
635 break;
636 default:
637 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
638 sess->vha->host_no, tmr_func);
639 return -ENOSYS;
640 }
641
642 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
643 transl_tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
644}
645
646static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
647{
648 struct qla_tgt_cmd *cmd = container_of(se_cmd,
649 struct qla_tgt_cmd, se_cmd);
650
651 if (cmd->aborted) {
652
653
654
655
656 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
657 "transport_state %x, t_state %x, se_cmd_flags %x\n",
658 cmd, kref_read(&cmd->se_cmd.cmd_kref),
659 cmd->se_cmd.transport_state,
660 cmd->se_cmd.t_state,
661 cmd->se_cmd.se_cmd_flags);
662 return 0;
663 }
664
665 cmd->trc_flags |= TRC_XMIT_DATA;
666 cmd->bufflen = se_cmd->data_length;
667 cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
668
669 cmd->sg_cnt = se_cmd->t_data_nents;
670 cmd->sg = se_cmd->t_data_sg;
671 cmd->offset = 0;
672
673 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
674 cmd->prot_sg = se_cmd->t_prot_sg;
675 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
676 se_cmd->pi_err = 0;
677
678
679
680
681 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
682 se_cmd->scsi_status);
683}
684
685static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
686{
687 struct qla_tgt_cmd *cmd = container_of(se_cmd,
688 struct qla_tgt_cmd, se_cmd);
689 int xmit_type = QLA_TGT_XMIT_STATUS;
690
691 if (cmd->aborted) {
692
693
694
695
696
697 pr_debug(
698 "queue_data_in aborted cmd[%p] transport_state %x, t_state %x, se_cmd_flags %x\n",
699 cmd, cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
700 cmd->se_cmd.se_cmd_flags);
701 return 0;
702 }
703 cmd->bufflen = se_cmd->data_length;
704 cmd->sg = NULL;
705 cmd->sg_cnt = 0;
706 cmd->offset = 0;
707 cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd);
708 if (cmd->trc_flags & TRC_XMIT_STATUS) {
709 pr_crit("Multiple calls for status = %p.\n", cmd);
710 dump_stack();
711 }
712 cmd->trc_flags |= TRC_XMIT_STATUS;
713
714 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
715
716
717
718
719 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
720 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
721 se_cmd->residual_count = 0;
722 }
723 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
724 se_cmd->residual_count += se_cmd->data_length;
725
726 cmd->bufflen = 0;
727 }
728
729
730
731 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
732}
733
734static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
735{
736 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
737 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
738 struct qla_tgt_mgmt_cmd, se_cmd);
739
740 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
741 mcmd, se_tmr->function, se_tmr->response);
742
743
744
745
746 switch (se_tmr->response) {
747 case TMR_FUNCTION_COMPLETE:
748 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
749 break;
750 case TMR_TASK_DOES_NOT_EXIST:
751 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
752 break;
753 case TMR_FUNCTION_REJECTED:
754 mcmd->fc_tm_rsp = FC_TM_REJECT;
755 break;
756 case TMR_LUN_DOES_NOT_EXIST:
757 default:
758 mcmd->fc_tm_rsp = FC_TM_FAILED;
759 break;
760 }
761
762
763
764
765 qlt_xmit_tm_rsp(mcmd);
766}
767
768static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
769{
770 struct qla_tgt_cmd *cmd = container_of(se_cmd,
771 struct qla_tgt_cmd, se_cmd);
772
773 if (qlt_abort_cmd(cmd))
774 return;
775}
776
777static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
778 struct tcm_qla2xxx_nacl *, struct fc_port *);
779
780
781
782static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
783{
784 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
785 struct se_portal_group *se_tpg = se_nacl->se_tpg;
786 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
787 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
788 struct tcm_qla2xxx_lport, lport_wwn);
789 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
790 struct tcm_qla2xxx_nacl, se_node_acl);
791 void *node;
792
793 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
794
795 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
796 WARN_ON(node && (node != se_nacl));
797
798 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
799 se_nacl, nacl->nport_wwnn, nacl->nport_id);
800
801
802
803
804
805
806
807
808
809 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
810}
811
812static void tcm_qla2xxx_release_session(struct kref *kref)
813{
814 struct se_session *se_sess = container_of(kref,
815 struct se_session, sess_kref);
816
817 qlt_unreg_sess(se_sess->fabric_sess_ptr);
818}
819
820static void tcm_qla2xxx_put_sess(struct fc_port *sess)
821{
822 if (!sess)
823 return;
824
825 assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
826 kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session);
827}
828
829static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
830{
831 assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
832 target_sess_cmd_list_set_waiting(sess->se_sess);
833}
834
835static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
836 const char *name)
837{
838 struct tcm_qla2xxx_nacl *nacl =
839 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
840 u64 wwnn;
841
842 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
843 return -EINVAL;
844
845 nacl->nport_wwnn = wwnn;
846 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
847
848 return 0;
849}
850
851
852
853#define DEF_QLA_TPG_ATTRIB(name) \
854 \
855static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
856 struct config_item *item, char *page) \
857{ \
858 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
859 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
860 struct tcm_qla2xxx_tpg, se_tpg); \
861 \
862 return sprintf(page, "%u\n", tpg->tpg_attrib.name); \
863} \
864 \
865static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
866 struct config_item *item, const char *page, size_t count) \
867{ \
868 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
869 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
870 struct tcm_qla2xxx_tpg, se_tpg); \
871 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
872 unsigned long val; \
873 int ret; \
874 \
875 ret = kstrtoul(page, 0, &val); \
876 if (ret < 0) { \
877 pr_err("kstrtoul() failed with" \
878 " ret: %d\n", ret); \
879 return -EINVAL; \
880 } \
881 \
882 if ((val != 0) && (val != 1)) { \
883 pr_err("Illegal boolean value %lu\n", val); \
884 return -EINVAL; \
885 } \
886 \
887 a->name = val; \
888 \
889 return count; \
890} \
891CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
892
893DEF_QLA_TPG_ATTRIB(generate_node_acls);
894DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
895DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
896DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
897DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
898
899#ifdef CONFIG_TCM_QLA2XXX_DEBUG
900DEF_QLA_TPG_ATTRIB(jam_host);
901#endif
902
903static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
904 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
905 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
906 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
907 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
908 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
909#ifdef CONFIG_TCM_QLA2XXX_DEBUG
910 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
911#endif
912 NULL,
913};
914
915
916
917static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
918 char *page)
919{
920 struct se_portal_group *se_tpg = to_tpg(item);
921 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
922 struct tcm_qla2xxx_tpg, se_tpg);
923
924 return snprintf(page, PAGE_SIZE, "%d\n",
925 atomic_read(&tpg->lport_tpg_enabled));
926}
927
928static void tcm_qla2xxx_depend_tpg(struct work_struct *work)
929{
930 struct tcm_qla2xxx_tpg *base_tpg = container_of(work,
931 struct tcm_qla2xxx_tpg, tpg_base_work);
932 struct se_portal_group *se_tpg = &base_tpg->se_tpg;
933 struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha;
934
935 if (!target_depend_item(&se_tpg->tpg_group.cg_item)) {
936 atomic_set(&base_tpg->lport_tpg_enabled, 1);
937 qlt_enable_vha(base_vha);
938 }
939 complete(&base_tpg->tpg_base_comp);
940}
941
942static void tcm_qla2xxx_undepend_tpg(struct work_struct *work)
943{
944 struct tcm_qla2xxx_tpg *base_tpg = container_of(work,
945 struct tcm_qla2xxx_tpg, tpg_base_work);
946 struct se_portal_group *se_tpg = &base_tpg->se_tpg;
947 struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha;
948
949 if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) {
950 atomic_set(&base_tpg->lport_tpg_enabled, 0);
951 target_undepend_item(&se_tpg->tpg_group.cg_item);
952 }
953 complete(&base_tpg->tpg_base_comp);
954}
955
956static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
957 const char *page, size_t count)
958{
959 struct se_portal_group *se_tpg = to_tpg(item);
960 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
961 struct tcm_qla2xxx_tpg, se_tpg);
962 unsigned long op;
963 int rc;
964
965 rc = kstrtoul(page, 0, &op);
966 if (rc < 0) {
967 pr_err("kstrtoul() returned %d\n", rc);
968 return -EINVAL;
969 }
970 if ((op != 1) && (op != 0)) {
971 pr_err("Illegal value for tpg_enable: %lu\n", op);
972 return -EINVAL;
973 }
974 if (op) {
975 if (atomic_read(&tpg->lport_tpg_enabled))
976 return -EEXIST;
977
978 INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg);
979 } else {
980 if (!atomic_read(&tpg->lport_tpg_enabled))
981 return count;
982
983 INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg);
984 }
985 init_completion(&tpg->tpg_base_comp);
986 schedule_work(&tpg->tpg_base_work);
987 wait_for_completion(&tpg->tpg_base_comp);
988
989 if (op) {
990 if (!atomic_read(&tpg->lport_tpg_enabled))
991 return -ENODEV;
992 } else {
993 if (atomic_read(&tpg->lport_tpg_enabled))
994 return -EPERM;
995 }
996 return count;
997}
998
999CONFIGFS_ATTR_WO(tcm_qla2xxx_tpg_, enable);
1000
1001static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
1002 &tcm_qla2xxx_tpg_attr_enable,
1003 NULL,
1004};
1005
1006static struct se_portal_group *tcm_qla2xxx_make_tpg(
1007 struct se_wwn *wwn,
1008 struct config_group *group,
1009 const char *name)
1010{
1011 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1012 struct tcm_qla2xxx_lport, lport_wwn);
1013 struct tcm_qla2xxx_tpg *tpg;
1014 unsigned long tpgt;
1015 int ret;
1016
1017 if (strstr(name, "tpgt_") != name)
1018 return ERR_PTR(-EINVAL);
1019 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1020 return ERR_PTR(-EINVAL);
1021
1022 if ((tpgt != 1)) {
1023 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
1024 return ERR_PTR(-ENOSYS);
1025 }
1026
1027 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1028 if (!tpg) {
1029 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1030 return ERR_PTR(-ENOMEM);
1031 }
1032 tpg->lport = lport;
1033 tpg->lport_tpgt = tpgt;
1034
1035
1036
1037
1038 tpg->tpg_attrib.generate_node_acls = 1;
1039 tpg->tpg_attrib.demo_mode_write_protect = 1;
1040 tpg->tpg_attrib.cache_dynamic_acls = 1;
1041 tpg->tpg_attrib.demo_mode_login_only = 1;
1042 tpg->tpg_attrib.jam_host = 0;
1043
1044 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1045 if (ret < 0) {
1046 kfree(tpg);
1047 return NULL;
1048 }
1049
1050 lport->tpg_1 = tpg;
1051
1052 return &tpg->se_tpg;
1053}
1054
1055static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1056{
1057 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1058 struct tcm_qla2xxx_tpg, se_tpg);
1059 struct tcm_qla2xxx_lport *lport = tpg->lport;
1060 struct scsi_qla_host *vha = lport->qla_vha;
1061
1062
1063
1064
1065 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1066 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1067
1068 core_tpg_deregister(se_tpg);
1069
1070
1071
1072 lport->tpg_1 = NULL;
1073 kfree(tpg);
1074}
1075
1076static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1077 char *page)
1078{
1079 return tcm_qla2xxx_tpg_enable_show(item, page);
1080}
1081
1082static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1083 const char *page, size_t count)
1084{
1085 struct se_portal_group *se_tpg = to_tpg(item);
1086 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1087 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1088 struct tcm_qla2xxx_lport, lport_wwn);
1089 struct scsi_qla_host *vha = lport->qla_vha;
1090 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1091 struct tcm_qla2xxx_tpg, se_tpg);
1092 unsigned long op;
1093 int rc;
1094
1095 rc = kstrtoul(page, 0, &op);
1096 if (rc < 0) {
1097 pr_err("kstrtoul() returned %d\n", rc);
1098 return -EINVAL;
1099 }
1100 if ((op != 1) && (op != 0)) {
1101 pr_err("Illegal value for tpg_enable: %lu\n", op);
1102 return -EINVAL;
1103 }
1104 if (op) {
1105 if (atomic_read(&tpg->lport_tpg_enabled))
1106 return -EEXIST;
1107
1108 atomic_set(&tpg->lport_tpg_enabled, 1);
1109 qlt_enable_vha(vha);
1110 } else {
1111 if (!atomic_read(&tpg->lport_tpg_enabled))
1112 return count;
1113
1114 atomic_set(&tpg->lport_tpg_enabled, 0);
1115 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1116 }
1117
1118 return count;
1119}
1120
1121CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1122
1123static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1124 &tcm_qla2xxx_npiv_tpg_attr_enable,
1125 NULL,
1126};
1127
1128static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
1129 struct se_wwn *wwn,
1130 struct config_group *group,
1131 const char *name)
1132{
1133 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1134 struct tcm_qla2xxx_lport, lport_wwn);
1135 struct tcm_qla2xxx_tpg *tpg;
1136 unsigned long tpgt;
1137 int ret;
1138
1139 if (strstr(name, "tpgt_") != name)
1140 return ERR_PTR(-EINVAL);
1141 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1142 return ERR_PTR(-EINVAL);
1143
1144 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1145 if (!tpg) {
1146 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1147 return ERR_PTR(-ENOMEM);
1148 }
1149 tpg->lport = lport;
1150 tpg->lport_tpgt = tpgt;
1151
1152
1153
1154
1155
1156 tpg->tpg_attrib.generate_node_acls = 1;
1157 tpg->tpg_attrib.demo_mode_write_protect = 1;
1158 tpg->tpg_attrib.cache_dynamic_acls = 1;
1159 tpg->tpg_attrib.demo_mode_login_only = 1;
1160
1161 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1162 if (ret < 0) {
1163 kfree(tpg);
1164 return NULL;
1165 }
1166 lport->tpg_1 = tpg;
1167 return &tpg->se_tpg;
1168}
1169
1170
1171
1172
1173static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(
1174 scsi_qla_host_t *vha,
1175 const uint8_t *s_id)
1176{
1177 struct tcm_qla2xxx_lport *lport;
1178 struct se_node_acl *se_nacl;
1179 struct tcm_qla2xxx_nacl *nacl;
1180 u32 key;
1181
1182 lport = vha->vha_tgt.target_lport_ptr;
1183 if (!lport) {
1184 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1185 dump_stack();
1186 return NULL;
1187 }
1188
1189 key = sid_to_key(s_id);
1190 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1191
1192 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1193 if (!se_nacl) {
1194 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1195 return NULL;
1196 }
1197 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1198 se_nacl, se_nacl->initiatorname);
1199
1200 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1201 if (!nacl->fc_port) {
1202 pr_err("Unable to locate struct fc_port\n");
1203 return NULL;
1204 }
1205
1206 return nacl->fc_port;
1207}
1208
1209
1210
1211
1212static void tcm_qla2xxx_set_sess_by_s_id(
1213 struct tcm_qla2xxx_lport *lport,
1214 struct se_node_acl *new_se_nacl,
1215 struct tcm_qla2xxx_nacl *nacl,
1216 struct se_session *se_sess,
1217 struct fc_port *fc_port,
1218 uint8_t *s_id)
1219{
1220 u32 key;
1221 void *slot;
1222 int rc;
1223
1224 key = sid_to_key(s_id);
1225 pr_debug("set_sess_by_s_id: %06x\n", key);
1226
1227 slot = btree_lookup32(&lport->lport_fcport_map, key);
1228 if (!slot) {
1229 if (new_se_nacl) {
1230 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1231 nacl->nport_id = key;
1232 rc = btree_insert32(&lport->lport_fcport_map, key,
1233 new_se_nacl, GFP_ATOMIC);
1234 if (rc)
1235 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1236 (int)key);
1237 } else {
1238 pr_debug("Wiping nonexisting fc_port entry\n");
1239 }
1240
1241 fc_port->se_sess = se_sess;
1242 nacl->fc_port = fc_port;
1243 return;
1244 }
1245
1246 if (nacl->fc_port) {
1247 if (new_se_nacl == NULL) {
1248 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1249 btree_remove32(&lport->lport_fcport_map, key);
1250 nacl->fc_port = NULL;
1251 return;
1252 }
1253 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1254 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1255 fc_port->se_sess = se_sess;
1256 nacl->fc_port = fc_port;
1257 return;
1258 }
1259
1260 if (new_se_nacl == NULL) {
1261 pr_debug("Clearing existing fc_port entry\n");
1262 btree_remove32(&lport->lport_fcport_map, key);
1263 return;
1264 }
1265
1266 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1267 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1268 fc_port->se_sess = se_sess;
1269 nacl->fc_port = fc_port;
1270
1271 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1272 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1273}
1274
1275
1276
1277
1278static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1279 scsi_qla_host_t *vha,
1280 const uint16_t loop_id)
1281{
1282 struct tcm_qla2xxx_lport *lport;
1283 struct se_node_acl *se_nacl;
1284 struct tcm_qla2xxx_nacl *nacl;
1285 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1286
1287 lport = vha->vha_tgt.target_lport_ptr;
1288 if (!lport) {
1289 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1290 dump_stack();
1291 return NULL;
1292 }
1293
1294 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1295
1296 fc_loopid = lport->lport_loopid_map + loop_id;
1297 se_nacl = fc_loopid->se_nacl;
1298 if (!se_nacl) {
1299 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1300 loop_id);
1301 return NULL;
1302 }
1303
1304 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1305
1306 if (!nacl->fc_port) {
1307 pr_err("Unable to locate struct fc_port\n");
1308 return NULL;
1309 }
1310
1311 return nacl->fc_port;
1312}
1313
1314
1315
1316
1317static void tcm_qla2xxx_set_sess_by_loop_id(
1318 struct tcm_qla2xxx_lport *lport,
1319 struct se_node_acl *new_se_nacl,
1320 struct tcm_qla2xxx_nacl *nacl,
1321 struct se_session *se_sess,
1322 struct fc_port *fc_port,
1323 uint16_t loop_id)
1324{
1325 struct se_node_acl *saved_nacl;
1326 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1327
1328 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1329
1330 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1331 lport->lport_loopid_map)[loop_id];
1332
1333 saved_nacl = fc_loopid->se_nacl;
1334 if (!saved_nacl) {
1335 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1336 fc_loopid->se_nacl = new_se_nacl;
1337 if (fc_port->se_sess != se_sess)
1338 fc_port->se_sess = se_sess;
1339 if (nacl->fc_port != fc_port)
1340 nacl->fc_port = fc_port;
1341 return;
1342 }
1343
1344 if (nacl->fc_port) {
1345 if (new_se_nacl == NULL) {
1346 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1347 fc_loopid->se_nacl = NULL;
1348 nacl->fc_port = NULL;
1349 return;
1350 }
1351
1352 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1353 fc_loopid->se_nacl = new_se_nacl;
1354 if (fc_port->se_sess != se_sess)
1355 fc_port->se_sess = se_sess;
1356 if (nacl->fc_port != fc_port)
1357 nacl->fc_port = fc_port;
1358 return;
1359 }
1360
1361 if (new_se_nacl == NULL) {
1362 pr_debug("Clearing fc_loopid->se_nacl\n");
1363 fc_loopid->se_nacl = NULL;
1364 return;
1365 }
1366
1367 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1368 fc_loopid->se_nacl = new_se_nacl;
1369 if (fc_port->se_sess != se_sess)
1370 fc_port->se_sess = se_sess;
1371 if (nacl->fc_port != fc_port)
1372 nacl->fc_port = fc_port;
1373
1374 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1375 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1376}
1377
1378
1379
1380
1381static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1382 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1383{
1384 struct se_session *se_sess = sess->se_sess;
1385 unsigned char be_sid[3];
1386
1387 be_sid[0] = sess->d_id.b.domain;
1388 be_sid[1] = sess->d_id.b.area;
1389 be_sid[2] = sess->d_id.b.al_pa;
1390
1391 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1392 sess, be_sid);
1393 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1394 sess, sess->loop_id);
1395}
1396
1397static void tcm_qla2xxx_free_session(struct fc_port *sess)
1398{
1399 struct qla_tgt *tgt = sess->tgt;
1400 struct qla_hw_data *ha = tgt->ha;
1401 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1402 struct se_session *se_sess;
1403 struct se_node_acl *se_nacl;
1404 struct tcm_qla2xxx_lport *lport;
1405 struct tcm_qla2xxx_nacl *nacl;
1406
1407 BUG_ON(in_interrupt());
1408
1409 se_sess = sess->se_sess;
1410 if (!se_sess) {
1411 pr_err("struct fc_port->se_sess is NULL\n");
1412 dump_stack();
1413 return;
1414 }
1415 se_nacl = se_sess->se_node_acl;
1416 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1417
1418 lport = vha->vha_tgt.target_lport_ptr;
1419 if (!lport) {
1420 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1421 dump_stack();
1422 return;
1423 }
1424 target_wait_for_sess_cmds(se_sess);
1425
1426 transport_deregister_session_configfs(sess->se_sess);
1427 transport_deregister_session(sess->se_sess);
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 tcm_qla2xxx_nacl *nacl;
1443 struct se_portal_group *se_tpg;
1444 struct se_node_acl *se_nacl;
1445 struct se_session *se_sess;
1446 unsigned char port_name[36];
1447 unsigned long flags;
1448 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1449 TCM_QLA2XXX_DEFAULT_TAGS;
1450 unsigned char be_sid[3];
1451
1452 lport = vha->vha_tgt.target_lport_ptr;
1453 if (!lport) {
1454 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1455 dump_stack();
1456 return -EINVAL;
1457 }
1458
1459
1460
1461 tpg = lport->tpg_1;
1462 if (!tpg) {
1463 pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n");
1464 return -EINVAL;
1465 }
1466 se_tpg = &tpg->se_tpg;
1467
1468 se_sess = transport_init_session_tags(num_tags,
1469 sizeof(struct qla_tgt_cmd),
1470 TARGET_PROT_ALL);
1471 if (IS_ERR(se_sess)) {
1472 pr_err("Unable to initialize struct se_session\n");
1473 return PTR_ERR(se_sess);
1474 }
1475
1476
1477
1478
1479 memset(&port_name, 0, 36);
1480 snprintf(port_name, 36, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
1481 fc_wwpn[0], fc_wwpn[1], fc_wwpn[2], fc_wwpn[3], fc_wwpn[4],
1482 fc_wwpn[5], fc_wwpn[6], fc_wwpn[7]);
1483
1484
1485
1486
1487 se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg,
1488 port_name);
1489 if (!se_sess->se_node_acl) {
1490 transport_free_session(se_sess);
1491 return -EINVAL;
1492 }
1493 se_nacl = se_sess->se_node_acl;
1494 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1495 be_sid[0] = qlat_sess->d_id.b.domain;
1496 be_sid[1] = qlat_sess->d_id.b.area;
1497 be_sid[2] = qlat_sess->d_id.b.al_pa;
1498
1499
1500
1501
1502
1503 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1504 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess,
1505 qlat_sess, be_sid);
1506 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess,
1507 qlat_sess, qlat_sess->loop_id);
1508 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1509
1510
1511
1512 __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, qlat_sess);
1513
1514 return 0;
1515}
1516
1517static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1518 uint16_t loop_id, bool conf_compl_supported)
1519{
1520 struct qla_tgt *tgt = sess->tgt;
1521 struct qla_hw_data *ha = tgt->ha;
1522 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1523 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1524 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1525 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1526 struct tcm_qla2xxx_nacl, se_node_acl);
1527 u32 key;
1528
1529
1530 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1531 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1532 sess, sess->port_name,
1533 sess->loop_id, loop_id, sess->d_id.b.domain,
1534 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1535 s_id.b.area, s_id.b.al_pa);
1536
1537 if (sess->loop_id != loop_id) {
1538
1539
1540
1541
1542
1543
1544
1545
1546 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1547 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1548
1549 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1550
1551 sess->loop_id = loop_id;
1552 }
1553
1554 if (sess->d_id.b24 != s_id.b24) {
1555 key = (((u32) sess->d_id.b.domain << 16) |
1556 ((u32) sess->d_id.b.area << 8) |
1557 ((u32) sess->d_id.b.al_pa));
1558
1559 if (btree_lookup32(&lport->lport_fcport_map, key))
1560 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1561 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1562 sess->d_id.b.domain, sess->d_id.b.area,
1563 sess->d_id.b.al_pa);
1564 else
1565 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1566 sess->d_id.b.domain, sess->d_id.b.area,
1567 sess->d_id.b.al_pa);
1568
1569 key = (((u32) s_id.b.domain << 16) |
1570 ((u32) s_id.b.area << 8) |
1571 ((u32) s_id.b.al_pa));
1572
1573 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1574 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1575 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1576 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1577 } else {
1578 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1579 GFP_ATOMIC);
1580 }
1581
1582 sess->d_id = s_id;
1583 nacl->nport_id = key;
1584 }
1585
1586 sess->conf_compl_supported = conf_compl_supported;
1587
1588
1589 sess->logout_on_delete = 1;
1590 sess->keep_nport_handle = 0;
1591}
1592
1593
1594
1595
1596static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1597 .handle_cmd = tcm_qla2xxx_handle_cmd,
1598 .handle_data = tcm_qla2xxx_handle_data,
1599 .handle_tmr = tcm_qla2xxx_handle_tmr,
1600 .free_cmd = tcm_qla2xxx_free_cmd,
1601 .free_mcmd = tcm_qla2xxx_free_mcmd,
1602 .free_session = tcm_qla2xxx_free_session,
1603 .update_sess = tcm_qla2xxx_update_sess,
1604 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1605 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1606 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1607 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1608 .put_sess = tcm_qla2xxx_put_sess,
1609 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1610 .get_dif_tags = tcm_qla2xxx_dif_tags,
1611 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1612};
1613
1614static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1615{
1616 int rc;
1617
1618 rc = btree_init32(&lport->lport_fcport_map);
1619 if (rc) {
1620 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1621 return rc;
1622 }
1623
1624 lport->lport_loopid_map = vzalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1625 if (!lport->lport_loopid_map) {
1626 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1627 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1628 btree_destroy32(&lport->lport_fcport_map);
1629 return -ENOMEM;
1630 }
1631 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1632 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1633 return 0;
1634}
1635
1636static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1637 void *target_lport_ptr,
1638 u64 npiv_wwpn, u64 npiv_wwnn)
1639{
1640 struct qla_hw_data *ha = vha->hw;
1641 struct tcm_qla2xxx_lport *lport =
1642 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1643
1644
1645
1646 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1647 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1648 lport->qla_vha = vha;
1649
1650 return 0;
1651}
1652
1653static struct se_wwn *tcm_qla2xxx_make_lport(
1654 struct target_fabric_configfs *tf,
1655 struct config_group *group,
1656 const char *name)
1657{
1658 struct tcm_qla2xxx_lport *lport;
1659 u64 wwpn;
1660 int ret = -ENODEV;
1661
1662 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
1663 return ERR_PTR(-EINVAL);
1664
1665 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1666 if (!lport) {
1667 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1668 return ERR_PTR(-ENOMEM);
1669 }
1670 lport->lport_wwpn = wwpn;
1671 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1672 wwpn);
1673 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1674
1675 ret = tcm_qla2xxx_init_lport(lport);
1676 if (ret != 0)
1677 goto out;
1678
1679 ret = qlt_lport_register(lport, wwpn, 0, 0,
1680 tcm_qla2xxx_lport_register_cb);
1681 if (ret != 0)
1682 goto out_lport;
1683
1684 return &lport->lport_wwn;
1685out_lport:
1686 vfree(lport->lport_loopid_map);
1687 btree_destroy32(&lport->lport_fcport_map);
1688out:
1689 kfree(lport);
1690 return ERR_PTR(ret);
1691}
1692
1693static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1694{
1695 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1696 struct tcm_qla2xxx_lport, lport_wwn);
1697 struct scsi_qla_host *vha = lport->qla_vha;
1698 struct se_node_acl *node;
1699 u32 key = 0;
1700
1701
1702
1703
1704
1705
1706 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1707 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1708
1709 qlt_lport_deregister(vha);
1710
1711 vfree(lport->lport_loopid_map);
1712 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1713 btree_remove32(&lport->lport_fcport_map, key);
1714 btree_destroy32(&lport->lport_fcport_map);
1715 kfree(lport);
1716}
1717
1718static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1719 void *target_lport_ptr,
1720 u64 npiv_wwpn, u64 npiv_wwnn)
1721{
1722 struct fc_vport *vport;
1723 struct Scsi_Host *sh = base_vha->host;
1724 struct scsi_qla_host *npiv_vha;
1725 struct tcm_qla2xxx_lport *lport =
1726 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1727 struct tcm_qla2xxx_lport *base_lport =
1728 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1729 struct tcm_qla2xxx_tpg *base_tpg;
1730 struct fc_vport_identifiers vport_id;
1731
1732 if (qla_ini_mode_enabled(base_vha)) {
1733 pr_err("qla2xxx base_vha not enabled for target mode\n");
1734 return -EPERM;
1735 }
1736
1737 if (!base_lport || !base_lport->tpg_1 ||
1738 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1739 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1740 return -EPERM;
1741 }
1742 base_tpg = base_lport->tpg_1;
1743
1744 memset(&vport_id, 0, sizeof(vport_id));
1745 vport_id.port_name = npiv_wwpn;
1746 vport_id.node_name = npiv_wwnn;
1747 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1748 vport_id.vport_type = FC_PORTTYPE_NPIV;
1749 vport_id.disable = false;
1750
1751 vport = fc_vport_create(sh, 0, &vport_id);
1752 if (!vport) {
1753 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1754 return -ENODEV;
1755 }
1756
1757
1758
1759 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1760 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1761 lport->qla_vha = npiv_vha;
1762 scsi_host_get(npiv_vha->host);
1763 return 0;
1764}
1765
1766
1767static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1768 struct target_fabric_configfs *tf,
1769 struct config_group *group,
1770 const char *name)
1771{
1772 struct tcm_qla2xxx_lport *lport;
1773 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1774 char *p, tmp[128];
1775 int ret;
1776
1777 snprintf(tmp, 128, "%s", name);
1778
1779 p = strchr(tmp, '@');
1780 if (!p) {
1781 pr_err("Unable to locate NPIV '@' separator\n");
1782 return ERR_PTR(-EINVAL);
1783 }
1784 *p++ = '\0';
1785
1786 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1787 return ERR_PTR(-EINVAL);
1788
1789 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1790 &npiv_wwpn, &npiv_wwnn) < 0)
1791 return ERR_PTR(-EINVAL);
1792
1793 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1794 if (!lport) {
1795 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1796 return ERR_PTR(-ENOMEM);
1797 }
1798 lport->lport_npiv_wwpn = npiv_wwpn;
1799 lport->lport_npiv_wwnn = npiv_wwnn;
1800 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1801
1802 ret = tcm_qla2xxx_init_lport(lport);
1803 if (ret != 0)
1804 goto out;
1805
1806 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1807 tcm_qla2xxx_lport_register_npiv_cb);
1808 if (ret != 0)
1809 goto out_lport;
1810
1811 return &lport->lport_wwn;
1812out_lport:
1813 vfree(lport->lport_loopid_map);
1814 btree_destroy32(&lport->lport_fcport_map);
1815out:
1816 kfree(lport);
1817 return ERR_PTR(ret);
1818}
1819
1820static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1821{
1822 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1823 struct tcm_qla2xxx_lport, lport_wwn);
1824 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1825 struct qla_hw_data *ha = npiv_vha->hw;
1826 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1827
1828 scsi_host_put(npiv_vha->host);
1829
1830
1831
1832 fc_vport_terminate(npiv_vha->fc_vport);
1833 scsi_host_put(base_vha->host);
1834 kfree(lport);
1835}
1836
1837
1838static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1839 char *page)
1840{
1841 return sprintf(page,
1842 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1843 QLA2XXX_VERSION, utsname()->sysname,
1844 utsname()->machine, utsname()->release);
1845}
1846
1847CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1848
1849static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1850 &tcm_qla2xxx_wwn_attr_version,
1851 NULL,
1852};
1853
1854static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1855 .module = THIS_MODULE,
1856 .name = "qla2xxx",
1857 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1858
1859
1860
1861
1862 .max_data_sg_nents = 1200,
1863 .get_fabric_name = tcm_qla2xxx_get_fabric_name,
1864 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1865 .tpg_get_tag = tcm_qla2xxx_get_tag,
1866 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1867 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1868 .tpg_check_demo_mode_write_protect =
1869 tcm_qla2xxx_check_demo_write_protect,
1870 .tpg_check_prod_mode_write_protect =
1871 tcm_qla2xxx_check_prod_write_protect,
1872 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1873 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1874 .check_stop_free = tcm_qla2xxx_check_stop_free,
1875 .release_cmd = tcm_qla2xxx_release_cmd,
1876 .shutdown_session = tcm_qla2xxx_shutdown_session,
1877 .close_session = tcm_qla2xxx_close_session,
1878 .sess_get_index = tcm_qla2xxx_sess_get_index,
1879 .sess_get_initiator_sid = NULL,
1880 .write_pending = tcm_qla2xxx_write_pending,
1881 .write_pending_status = tcm_qla2xxx_write_pending_status,
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_make_lport,
1893 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1894 .fabric_make_tpg = tcm_qla2xxx_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_tpg_attrs,
1900 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1901};
1902
1903static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1904 .module = THIS_MODULE,
1905 .name = "qla2xxx_npiv",
1906 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1907 .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
1908 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1909 .tpg_get_tag = tcm_qla2xxx_get_tag,
1910 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1911 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1912 .tpg_check_prod_mode_write_protect =
1913 tcm_qla2xxx_check_prod_write_protect,
1914 .tpg_check_demo_mode_write_protect =
1915 tcm_qla2xxx_check_demo_write_protect,
1916 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1917 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1918 .release_cmd = tcm_qla2xxx_release_cmd,
1919 .shutdown_session = tcm_qla2xxx_shutdown_session,
1920 .close_session = tcm_qla2xxx_close_session,
1921 .sess_get_index = tcm_qla2xxx_sess_get_index,
1922 .sess_get_initiator_sid = NULL,
1923 .write_pending = tcm_qla2xxx_write_pending,
1924 .write_pending_status = tcm_qla2xxx_write_pending_status,
1925 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1926 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1927 .queue_data_in = tcm_qla2xxx_queue_data_in,
1928 .queue_status = tcm_qla2xxx_queue_status,
1929 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1930 .aborted_task = tcm_qla2xxx_aborted_task,
1931
1932
1933
1934
1935 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1936 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1937 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1938 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1939 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1940
1941 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1942 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1943};
1944
1945static int tcm_qla2xxx_register_configfs(void)
1946{
1947 int ret;
1948
1949 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1950 QLA2XXX_VERSION, utsname()->sysname,
1951 utsname()->machine, utsname()->release);
1952
1953 ret = target_register_template(&tcm_qla2xxx_ops);
1954 if (ret)
1955 return ret;
1956 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
1957 if(ret)
1958 goto out_fabric;
1959
1960 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
1961 WQ_MEM_RECLAIM, 0);
1962 if (!tcm_qla2xxx_free_wq) {
1963 ret = -ENOMEM;
1964 goto out_fabric_npiv;
1965 }
1966
1967 tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0);
1968 if (!tcm_qla2xxx_cmd_wq) {
1969 ret = -ENOMEM;
1970 goto out_free_wq;
1971 }
1972
1973 return 0;
1974
1975out_free_wq:
1976 destroy_workqueue(tcm_qla2xxx_free_wq);
1977out_fabric_npiv:
1978 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1979out_fabric:
1980 target_unregister_template(&tcm_qla2xxx_ops);
1981 return ret;
1982}
1983
1984static void tcm_qla2xxx_deregister_configfs(void)
1985{
1986 destroy_workqueue(tcm_qla2xxx_cmd_wq);
1987 destroy_workqueue(tcm_qla2xxx_free_wq);
1988
1989 target_unregister_template(&tcm_qla2xxx_ops);
1990 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1991}
1992
1993static int __init tcm_qla2xxx_init(void)
1994{
1995 int ret;
1996
1997 mark_tech_preview("QLA2XXX Target Mode Operation", THIS_MODULE);
1998
1999 ret = tcm_qla2xxx_register_configfs();
2000 if (ret < 0)
2001 return ret;
2002
2003 return 0;
2004}
2005
2006static void __exit tcm_qla2xxx_exit(void)
2007{
2008 tcm_qla2xxx_deregister_configfs();
2009}
2010
2011MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver");
2012MODULE_LICENSE("GPL");
2013module_init(tcm_qla2xxx_init);
2014module_exit(tcm_qla2xxx_exit);
2015
