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18#include <linux/module.h>
19#include <linux/utsname.h>
20#include <linux/vmalloc.h>
21#include <linux/list.h>
22#include <linux/slab.h>
23#include <linux/types.h>
24#include <linux/string.h>
25#include <linux/configfs.h>
26#include <linux/ctype.h>
27#include <asm/unaligned.h>
28#include <scsi/scsi_host.h>
29#include <target/target_core_base.h>
30#include <target/target_core_fabric.h>
31
32#include "qla_def.h"
33#include "qla_target.h"
34#include "tcm_qla2xxx.h"
35
36static struct workqueue_struct *tcm_qla2xxx_free_wq;
37
38
39
40
41
42
43
44static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
45{
46 const char *cp;
47 char c;
48 u32 nibble;
49 u32 byte = 0;
50 u32 pos = 0;
51 u32 err;
52
53 *wwn = 0;
54 for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
55 c = *cp;
56 if (c == '\n' && cp[1] == '\0')
57 continue;
58 if (strict && pos++ == 2 && byte++ < 7) {
59 pos = 0;
60 if (c == ':')
61 continue;
62 err = 1;
63 goto fail;
64 }
65 if (c == '\0') {
66 err = 2;
67 if (strict && byte != 8)
68 goto fail;
69 return cp - name;
70 }
71 err = 3;
72 if (isdigit(c))
73 nibble = c - '0';
74 else if (isxdigit(c) && (islower(c) || !strict))
75 nibble = tolower(c) - 'a' + 10;
76 else
77 goto fail;
78 *wwn = (*wwn << 4) | nibble;
79 }
80 err = 4;
81fail:
82 pr_debug("err %u len %zu pos %u byte %u\n",
83 err, cp - name, pos, byte);
84 return -1;
85}
86
87static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
88{
89 u8 b[8];
90
91 put_unaligned_be64(wwn, b);
92 return snprintf(buf, len,
93 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
94 b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
95}
96
97
98
99
100static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
101{
102 unsigned int i, j;
103 u8 wwn[8];
104
105 memset(wwn, 0, sizeof(wwn));
106
107
108 for (i = 0, j = 0; i < 16; i++) {
109 int value;
110
111 value = hex_to_bin(*ns++);
112 if (value >= 0)
113 j = (j << 4) | value;
114 else
115 return -EINVAL;
116
117 if (i % 2) {
118 wwn[i/2] = j & 0xff;
119 j = 0;
120 }
121 }
122
123 *nm = wwn_to_u64(wwn);
124 return 0;
125}
126
127
128
129
130
131static int tcm_qla2xxx_npiv_parse_wwn(
132 const char *name,
133 size_t count,
134 u64 *wwpn,
135 u64 *wwnn)
136{
137 unsigned int cnt = count;
138 int rc;
139
140 *wwpn = 0;
141 *wwnn = 0;
142
143
144 if (name[cnt-1] == '\n' || name[cnt-1] == 0)
145 cnt--;
146
147
148 if ((cnt != (16+1+16)) || (name[16] != ':'))
149 return -EINVAL;
150
151 rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
152 if (rc != 0)
153 return rc;
154
155 rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
156 if (rc != 0)
157 return rc;
158
159 return 0;
160}
161
162static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
163{
164 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
165 struct tcm_qla2xxx_tpg, se_tpg);
166 struct tcm_qla2xxx_lport *lport = tpg->lport;
167
168 return lport->lport_naa_name;
169}
170
171static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
172{
173 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
174 struct tcm_qla2xxx_tpg, se_tpg);
175 return tpg->lport_tpgt;
176}
177
178static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
179{
180 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
181 struct tcm_qla2xxx_tpg, se_tpg);
182
183 return tpg->tpg_attrib.generate_node_acls;
184}
185
186static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
187{
188 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
189 struct tcm_qla2xxx_tpg, se_tpg);
190
191 return tpg->tpg_attrib.cache_dynamic_acls;
192}
193
194static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
195{
196 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
197 struct tcm_qla2xxx_tpg, se_tpg);
198
199 return tpg->tpg_attrib.demo_mode_write_protect;
200}
201
202static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
203{
204 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
205 struct tcm_qla2xxx_tpg, se_tpg);
206
207 return tpg->tpg_attrib.prod_mode_write_protect;
208}
209
210static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg)
211{
212 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
213 struct tcm_qla2xxx_tpg, se_tpg);
214
215 return tpg->tpg_attrib.demo_mode_login_only;
216}
217
218static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg)
219{
220 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
221 struct tcm_qla2xxx_tpg, se_tpg);
222
223 return tpg->tpg_attrib.fabric_prot_type;
224}
225
226static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
227{
228 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
229 struct tcm_qla2xxx_tpg, se_tpg);
230
231 return tpg->lport_tpgt;
232}
233
234static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
235{
236 struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
237 struct qla_tgt_mgmt_cmd, free_work);
238
239 transport_generic_free_cmd(&mcmd->se_cmd, 0);
240}
241
242
243
244
245
246
247static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
248{
249 if (!mcmd)
250 return;
251 INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
252 queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
253}
254
255static void tcm_qla2xxx_complete_free(struct work_struct *work)
256{
257 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
258 unsigned long flags;
259
260 cmd->cmd_in_wq = 0;
261
262 WARN_ON(cmd->trc_flags & TRC_CMD_FREE);
263
264
265 cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
266 cmd->trc_flags |= TRC_CMD_FREE;
267 cmd->cmd_sent_to_fw = 0;
268
269 spin_lock_irqsave(&cmd->sess->sess_cmd_lock, flags);
270 list_del_init(&cmd->sess_cmd_list);
271 spin_unlock_irqrestore(&cmd->sess->sess_cmd_lock, flags);
272
273 transport_generic_free_cmd(&cmd->se_cmd, 0);
274}
275
276static struct qla_tgt_cmd *tcm_qla2xxx_get_cmd(struct fc_port *sess)
277{
278 struct se_session *se_sess = sess->se_sess;
279 struct qla_tgt_cmd *cmd;
280 int tag, cpu;
281
282 tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
283 if (tag < 0)
284 return NULL;
285
286 cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
287 memset(cmd, 0, sizeof(struct qla_tgt_cmd));
288 cmd->se_cmd.map_tag = tag;
289 cmd->se_cmd.map_cpu = cpu;
290
291 return cmd;
292}
293
294static void tcm_qla2xxx_rel_cmd(struct qla_tgt_cmd *cmd)
295{
296 target_free_tag(cmd->sess->se_sess, &cmd->se_cmd);
297}
298
299
300
301
302
303
304static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
305{
306 cmd->qpair->tgt_counters.core_qla_free_cmd++;
307 cmd->cmd_in_wq = 1;
308
309 WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
310 cmd->trc_flags |= TRC_CMD_DONE;
311
312 INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
313 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
314}
315
316
317
318
319static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
320{
321 struct qla_tgt_cmd *cmd;
322
323 if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) {
324 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
325 cmd->trc_flags |= TRC_CMD_CHK_STOP;
326 }
327
328 return target_put_sess_cmd(se_cmd);
329}
330
331
332
333
334static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
335{
336 struct qla_tgt_cmd *cmd;
337
338 if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
339 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
340 struct qla_tgt_mgmt_cmd, se_cmd);
341 qlt_free_mcmd(mcmd);
342 return;
343 }
344 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
345
346 if (WARN_ON(cmd->cmd_sent_to_fw))
347 return;
348
349 qlt_free_cmd(cmd);
350}
351
352static void tcm_qla2xxx_release_session(struct kref *kref)
353{
354 struct fc_port *sess = container_of(kref,
355 struct fc_port, sess_kref);
356
357 qlt_unreg_sess(sess);
358}
359
360static void tcm_qla2xxx_put_sess(struct fc_port *sess)
361{
362 if (!sess)
363 return;
364
365 kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
366}
367
368static void tcm_qla2xxx_close_session(struct se_session *se_sess)
369{
370 struct fc_port *sess = se_sess->fabric_sess_ptr;
371
372 BUG_ON(!sess);
373
374 target_stop_session(se_sess);
375
376 sess->explicit_logout = 1;
377 tcm_qla2xxx_put_sess(sess);
378}
379
380static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
381{
382 return 0;
383}
384
385static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
386{
387 struct qla_tgt_cmd *cmd = container_of(se_cmd,
388 struct qla_tgt_cmd, se_cmd);
389
390 if (cmd->aborted) {
391
392
393
394
395 pr_debug("write_pending aborted cmd[%p] refcount %d "
396 "transport_state %x, t_state %x, se_cmd_flags %x\n",
397 cmd, kref_read(&cmd->se_cmd.cmd_kref),
398 cmd->se_cmd.transport_state,
399 cmd->se_cmd.t_state,
400 cmd->se_cmd.se_cmd_flags);
401 transport_generic_request_failure(&cmd->se_cmd,
402 TCM_CHECK_CONDITION_ABORT_CMD);
403 return 0;
404 }
405 cmd->trc_flags |= TRC_XFR_RDY;
406 cmd->bufflen = se_cmd->data_length;
407 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
408
409 cmd->sg_cnt = se_cmd->t_data_nents;
410 cmd->sg = se_cmd->t_data_sg;
411
412 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
413 cmd->prot_sg = se_cmd->t_prot_sg;
414 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
415 se_cmd->pi_err = 0;
416
417
418
419
420
421 return qlt_rdy_to_xfer(cmd);
422}
423
424static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
425{
426 return;
427}
428
429static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
430{
431 if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
432 struct qla_tgt_cmd *cmd = container_of(se_cmd,
433 struct qla_tgt_cmd, se_cmd);
434 return cmd->state;
435 }
436
437 return 0;
438}
439
440
441
442
443static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
444 unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
445 int data_dir, int bidi)
446{
447 struct se_cmd *se_cmd = &cmd->se_cmd;
448 struct se_session *se_sess;
449 struct fc_port *sess;
450#ifdef CONFIG_TCM_QLA2XXX_DEBUG
451 struct se_portal_group *se_tpg;
452 struct tcm_qla2xxx_tpg *tpg;
453#endif
454 int rc, target_flags = TARGET_SCF_ACK_KREF;
455 unsigned long flags;
456
457 if (bidi)
458 target_flags |= TARGET_SCF_BIDI_OP;
459
460 if (se_cmd->cpuid != WORK_CPU_UNBOUND)
461 target_flags |= TARGET_SCF_USE_CPUID;
462
463 sess = cmd->sess;
464 if (!sess) {
465 pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
466 return -EINVAL;
467 }
468
469 se_sess = sess->se_sess;
470 if (!se_sess) {
471 pr_err("Unable to locate active struct se_session\n");
472 return -EINVAL;
473 }
474
475#ifdef CONFIG_TCM_QLA2XXX_DEBUG
476 se_tpg = se_sess->se_tpg;
477 tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
478 if (unlikely(tpg->tpg_attrib.jam_host)) {
479
480 return 0;
481 }
482#endif
483 cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
484
485 spin_lock_irqsave(&sess->sess_cmd_lock, flags);
486 list_add_tail(&cmd->sess_cmd_list, &sess->sess_cmd_list);
487 spin_unlock_irqrestore(&sess->sess_cmd_lock, flags);
488
489 rc = target_init_cmd(se_cmd, se_sess, &cmd->sense_buffer[0],
490 cmd->unpacked_lun, data_length, fcp_task_attr,
491 data_dir, target_flags);
492 if (rc)
493 return rc;
494
495 if (target_submit_prep(se_cmd, cdb, NULL, 0, NULL, 0, NULL, 0,
496 GFP_KERNEL))
497 return 0;
498
499 target_submit(se_cmd);
500 return 0;
501}
502
503static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
504{
505 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
506
507
508
509
510
511 cmd->cmd_in_wq = 0;
512 cmd->cmd_sent_to_fw = 0;
513 if (cmd->aborted) {
514 transport_generic_request_failure(&cmd->se_cmd,
515 TCM_CHECK_CONDITION_ABORT_CMD);
516 return;
517 }
518
519 cmd->qpair->tgt_counters.qla_core_ret_ctio++;
520 if (!cmd->write_data_transferred) {
521 switch (cmd->dif_err_code) {
522 case DIF_ERR_GRD:
523 cmd->se_cmd.pi_err =
524 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
525 break;
526 case DIF_ERR_REF:
527 cmd->se_cmd.pi_err =
528 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
529 break;
530 case DIF_ERR_APP:
531 cmd->se_cmd.pi_err =
532 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
533 break;
534 case DIF_ERR_NONE:
535 default:
536 break;
537 }
538
539 if (cmd->se_cmd.pi_err)
540 transport_generic_request_failure(&cmd->se_cmd,
541 cmd->se_cmd.pi_err);
542 else
543 transport_generic_request_failure(&cmd->se_cmd,
544 TCM_CHECK_CONDITION_ABORT_CMD);
545
546 return;
547 }
548
549 return target_execute_cmd(&cmd->se_cmd);
550}
551
552
553
554
555static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
556{
557 cmd->trc_flags |= TRC_DATA_IN;
558 cmd->cmd_in_wq = 1;
559 INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
560 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
561}
562
563static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
564{
565 return 0;
566}
567
568static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
569 uint16_t *pfw_prot_opts)
570{
571 struct se_cmd *se_cmd = &cmd->se_cmd;
572
573 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
574 *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
575
576 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
577 *pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
578
579 return 0;
580}
581
582
583
584
585static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
586 uint16_t tmr_func, uint32_t tag)
587{
588 struct fc_port *sess = mcmd->sess;
589 struct se_cmd *se_cmd = &mcmd->se_cmd;
590 int transl_tmr_func = 0;
591
592 switch (tmr_func) {
593 case QLA_TGT_ABTS:
594 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
595 transl_tmr_func = TMR_ABORT_TASK;
596 break;
597 case QLA_TGT_2G_ABORT_TASK:
598 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
599 transl_tmr_func = TMR_ABORT_TASK;
600 break;
601 case QLA_TGT_CLEAR_ACA:
602 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
603 transl_tmr_func = TMR_CLEAR_ACA;
604 break;
605 case QLA_TGT_TARGET_RESET:
606 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
607 transl_tmr_func = TMR_TARGET_WARM_RESET;
608 break;
609 case QLA_TGT_LUN_RESET:
610 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
611 transl_tmr_func = TMR_LUN_RESET;
612 break;
613 case QLA_TGT_CLEAR_TS:
614 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
615 transl_tmr_func = TMR_CLEAR_TASK_SET;
616 break;
617 case QLA_TGT_ABORT_TS:
618 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
619 transl_tmr_func = TMR_ABORT_TASK_SET;
620 break;
621 default:
622 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
623 sess->vha->host_no, tmr_func);
624 return -ENOSYS;
625 }
626
627 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
628 transl_tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
629}
630
631static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess,
632 uint64_t tag)
633{
634 struct qla_tgt_cmd *cmd;
635 unsigned long flags;
636
637 if (!sess->se_sess)
638 return NULL;
639
640 spin_lock_irqsave(&sess->sess_cmd_lock, flags);
641 list_for_each_entry(cmd, &sess->sess_cmd_list, sess_cmd_list) {
642 if (cmd->se_cmd.tag == tag)
643 goto done;
644 }
645 cmd = NULL;
646done:
647 spin_unlock_irqrestore(&sess->sess_cmd_lock, flags);
648
649 return cmd;
650}
651
652static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
653{
654 struct qla_tgt_cmd *cmd = container_of(se_cmd,
655 struct qla_tgt_cmd, se_cmd);
656
657 if (cmd->aborted) {
658
659
660
661
662 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
663 "transport_state %x, t_state %x, se_cmd_flags %x\n",
664 cmd, kref_read(&cmd->se_cmd.cmd_kref),
665 cmd->se_cmd.transport_state,
666 cmd->se_cmd.t_state,
667 cmd->se_cmd.se_cmd_flags);
668 return 0;
669 }
670
671 cmd->trc_flags |= TRC_XMIT_DATA;
672 cmd->bufflen = se_cmd->data_length;
673 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
674
675 cmd->sg_cnt = se_cmd->t_data_nents;
676 cmd->sg = se_cmd->t_data_sg;
677 cmd->offset = 0;
678
679 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
680 cmd->prot_sg = se_cmd->t_prot_sg;
681 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
682 se_cmd->pi_err = 0;
683
684
685
686
687 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
688 se_cmd->scsi_status);
689}
690
691static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
692{
693 struct qla_tgt_cmd *cmd = container_of(se_cmd,
694 struct qla_tgt_cmd, se_cmd);
695 int xmit_type = QLA_TGT_XMIT_STATUS;
696
697 if (cmd->aborted) {
698
699
700
701
702
703 pr_debug(
704 "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
705 cmd, kref_read(&cmd->se_cmd.cmd_kref),
706 cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
707 cmd->se_cmd.se_cmd_flags);
708 return 0;
709 }
710 cmd->bufflen = se_cmd->data_length;
711 cmd->sg = NULL;
712 cmd->sg_cnt = 0;
713 cmd->offset = 0;
714 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
715 cmd->trc_flags |= TRC_XMIT_STATUS;
716
717 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
718
719
720
721
722 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
723 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
724 se_cmd->residual_count = 0;
725 }
726 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
727 se_cmd->residual_count += se_cmd->data_length;
728
729 cmd->bufflen = 0;
730 }
731
732
733
734 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
735}
736
737static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
738{
739 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
740 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
741 struct qla_tgt_mgmt_cmd, se_cmd);
742
743 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
744 mcmd, se_tmr->function, se_tmr->response);
745
746
747
748
749 switch (se_tmr->response) {
750 case TMR_FUNCTION_COMPLETE:
751 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
752 break;
753 case TMR_TASK_DOES_NOT_EXIST:
754 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
755 break;
756 case TMR_FUNCTION_REJECTED:
757 mcmd->fc_tm_rsp = FC_TM_REJECT;
758 break;
759 case TMR_LUN_DOES_NOT_EXIST:
760 default:
761 mcmd->fc_tm_rsp = FC_TM_FAILED;
762 break;
763 }
764
765
766
767
768 qlt_xmit_tm_rsp(mcmd);
769}
770
771static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
772{
773 struct qla_tgt_cmd *cmd;
774 unsigned long flags;
775
776 if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
777 return;
778
779 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
780
781 spin_lock_irqsave(&cmd->sess->sess_cmd_lock, flags);
782 list_del_init(&cmd->sess_cmd_list);
783 spin_unlock_irqrestore(&cmd->sess->sess_cmd_lock, flags);
784
785 qlt_abort_cmd(cmd);
786}
787
788static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
789 struct tcm_qla2xxx_nacl *, struct fc_port *);
790
791
792
793static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
794{
795 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
796 struct se_portal_group *se_tpg = se_nacl->se_tpg;
797 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
798 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
799 struct tcm_qla2xxx_lport, lport_wwn);
800 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
801 struct tcm_qla2xxx_nacl, se_node_acl);
802 void *node;
803
804 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
805
806 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
807 if (WARN_ON(node && (node != se_nacl))) {
808
809
810
811
812
813
814 btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
815 node, GFP_ATOMIC);
816 }
817
818 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
819 se_nacl, nacl->nport_wwnn, nacl->nport_id);
820
821
822
823
824
825
826
827
828
829 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
830}
831
832static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
833{
834 target_stop_session(sess->se_sess);
835}
836
837static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
838 const char *name)
839{
840 struct tcm_qla2xxx_nacl *nacl =
841 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
842 u64 wwnn;
843
844 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
845 return -EINVAL;
846
847 nacl->nport_wwnn = wwnn;
848 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
849
850 return 0;
851}
852
853
854
855#define DEF_QLA_TPG_ATTRIB(name) \
856 \
857static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
858 struct config_item *item, char *page) \
859{ \
860 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
861 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
862 struct tcm_qla2xxx_tpg, se_tpg); \
863 \
864 return sprintf(page, "%d\n", tpg->tpg_attrib.name); \
865} \
866 \
867static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
868 struct config_item *item, const char *page, size_t count) \
869{ \
870 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
871 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
872 struct tcm_qla2xxx_tpg, se_tpg); \
873 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
874 unsigned long val; \
875 int ret; \
876 \
877 ret = kstrtoul(page, 0, &val); \
878 if (ret < 0) { \
879 pr_err("kstrtoul() failed with" \
880 " ret: %d\n", ret); \
881 return -EINVAL; \
882 } \
883 \
884 if ((val != 0) && (val != 1)) { \
885 pr_err("Illegal boolean value %lu\n", val); \
886 return -EINVAL; \
887 } \
888 \
889 a->name = val; \
890 \
891 return count; \
892} \
893CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
894
895DEF_QLA_TPG_ATTRIB(generate_node_acls);
896DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
897DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
898DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
899DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
900#ifdef CONFIG_TCM_QLA2XXX_DEBUG
901DEF_QLA_TPG_ATTRIB(jam_host);
902#endif
903
904static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
905 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
906 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
907 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
908 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
909 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
910#ifdef CONFIG_TCM_QLA2XXX_DEBUG
911 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
912#endif
913 NULL,
914};
915
916
917
918static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
919 char *page)
920{
921 struct se_portal_group *se_tpg = to_tpg(item);
922 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
923 struct tcm_qla2xxx_tpg, se_tpg);
924
925 return snprintf(page, PAGE_SIZE, "%d\n",
926 atomic_read(&tpg->lport_tpg_enabled));
927}
928
929static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
930 const char *page, size_t count)
931{
932 struct se_portal_group *se_tpg = to_tpg(item);
933 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
934 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
935 struct tcm_qla2xxx_lport, lport_wwn);
936 struct scsi_qla_host *vha = lport->qla_vha;
937 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
938 struct tcm_qla2xxx_tpg, se_tpg);
939 unsigned long op;
940 int rc;
941
942 rc = kstrtoul(page, 0, &op);
943 if (rc < 0) {
944 pr_err("kstrtoul() returned %d\n", rc);
945 return -EINVAL;
946 }
947 if ((op != 1) && (op != 0)) {
948 pr_err("Illegal value for tpg_enable: %lu\n", op);
949 return -EINVAL;
950 }
951 if (op) {
952 if (atomic_read(&tpg->lport_tpg_enabled))
953 return -EEXIST;
954
955 atomic_set(&tpg->lport_tpg_enabled, 1);
956 qlt_enable_vha(vha);
957 } else {
958 if (!atomic_read(&tpg->lport_tpg_enabled))
959 return count;
960
961 atomic_set(&tpg->lport_tpg_enabled, 0);
962 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
963 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
964 }
965
966 return count;
967}
968
969static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
970 char *page)
971{
972 return target_show_dynamic_sessions(to_tpg(item), page);
973}
974
975static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
976 const char *page, size_t count)
977{
978 struct se_portal_group *se_tpg = to_tpg(item);
979 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
980 struct tcm_qla2xxx_tpg, se_tpg);
981 unsigned long val;
982 int ret = kstrtoul(page, 0, &val);
983
984 if (ret) {
985 pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
986 return ret;
987 }
988 if (val != 0 && val != 1 && val != 3) {
989 pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
990 return -EINVAL;
991 }
992 tpg->tpg_attrib.fabric_prot_type = val;
993
994 return count;
995}
996
997static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
998 char *page)
999{
1000 struct se_portal_group *se_tpg = to_tpg(item);
1001 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1002 struct tcm_qla2xxx_tpg, se_tpg);
1003
1004 return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
1005}
1006
1007CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable);
1008CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
1009CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
1010
1011static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
1012 &tcm_qla2xxx_tpg_attr_enable,
1013 &tcm_qla2xxx_tpg_attr_dynamic_sessions,
1014 &tcm_qla2xxx_tpg_attr_fabric_prot_type,
1015 NULL,
1016};
1017
1018static struct se_portal_group *tcm_qla2xxx_make_tpg(struct se_wwn *wwn,
1019 const char *name)
1020{
1021 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1022 struct tcm_qla2xxx_lport, lport_wwn);
1023 struct tcm_qla2xxx_tpg *tpg;
1024 unsigned long tpgt;
1025 int ret;
1026
1027 if (strstr(name, "tpgt_") != name)
1028 return ERR_PTR(-EINVAL);
1029 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1030 return ERR_PTR(-EINVAL);
1031
1032 if ((tpgt != 1)) {
1033 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
1034 return ERR_PTR(-ENOSYS);
1035 }
1036
1037 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1038 if (!tpg) {
1039 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1040 return ERR_PTR(-ENOMEM);
1041 }
1042 tpg->lport = lport;
1043 tpg->lport_tpgt = tpgt;
1044
1045
1046
1047
1048 tpg->tpg_attrib.generate_node_acls = 1;
1049 tpg->tpg_attrib.demo_mode_write_protect = 1;
1050 tpg->tpg_attrib.cache_dynamic_acls = 1;
1051 tpg->tpg_attrib.demo_mode_login_only = 1;
1052 tpg->tpg_attrib.jam_host = 0;
1053
1054 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1055 if (ret < 0) {
1056 kfree(tpg);
1057 return NULL;
1058 }
1059
1060 lport->tpg_1 = tpg;
1061
1062 return &tpg->se_tpg;
1063}
1064
1065static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1066{
1067 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1068 struct tcm_qla2xxx_tpg, se_tpg);
1069 struct tcm_qla2xxx_lport *lport = tpg->lport;
1070 struct scsi_qla_host *vha = lport->qla_vha;
1071
1072
1073
1074
1075 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1076 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1077
1078 core_tpg_deregister(se_tpg);
1079
1080
1081
1082 lport->tpg_1 = NULL;
1083 kfree(tpg);
1084}
1085
1086static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1087 char *page)
1088{
1089 return tcm_qla2xxx_tpg_enable_show(item, page);
1090}
1091
1092static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1093 const char *page, size_t count)
1094{
1095 struct se_portal_group *se_tpg = to_tpg(item);
1096 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1097 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1098 struct tcm_qla2xxx_lport, lport_wwn);
1099 struct scsi_qla_host *vha = lport->qla_vha;
1100 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1101 struct tcm_qla2xxx_tpg, se_tpg);
1102 unsigned long op;
1103 int rc;
1104
1105 rc = kstrtoul(page, 0, &op);
1106 if (rc < 0) {
1107 pr_err("kstrtoul() returned %d\n", rc);
1108 return -EINVAL;
1109 }
1110 if ((op != 1) && (op != 0)) {
1111 pr_err("Illegal value for tpg_enable: %lu\n", op);
1112 return -EINVAL;
1113 }
1114 if (op) {
1115 if (atomic_read(&tpg->lport_tpg_enabled))
1116 return -EEXIST;
1117
1118 atomic_set(&tpg->lport_tpg_enabled, 1);
1119 qlt_enable_vha(vha);
1120 } else {
1121 if (!atomic_read(&tpg->lport_tpg_enabled))
1122 return count;
1123
1124 atomic_set(&tpg->lport_tpg_enabled, 0);
1125 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1126 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1127 }
1128
1129 return count;
1130}
1131
1132CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1133
1134static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1135 &tcm_qla2xxx_npiv_tpg_attr_enable,
1136 NULL,
1137};
1138
1139static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(struct se_wwn *wwn,
1140 const char *name)
1141{
1142 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1143 struct tcm_qla2xxx_lport, lport_wwn);
1144 struct tcm_qla2xxx_tpg *tpg;
1145 unsigned long tpgt;
1146 int ret;
1147
1148 if (strstr(name, "tpgt_") != name)
1149 return ERR_PTR(-EINVAL);
1150 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1151 return ERR_PTR(-EINVAL);
1152
1153 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1154 if (!tpg) {
1155 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1156 return ERR_PTR(-ENOMEM);
1157 }
1158 tpg->lport = lport;
1159 tpg->lport_tpgt = tpgt;
1160
1161
1162
1163
1164
1165 tpg->tpg_attrib.generate_node_acls = 1;
1166 tpg->tpg_attrib.demo_mode_write_protect = 1;
1167 tpg->tpg_attrib.cache_dynamic_acls = 1;
1168 tpg->tpg_attrib.demo_mode_login_only = 1;
1169
1170 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1171 if (ret < 0) {
1172 kfree(tpg);
1173 return NULL;
1174 }
1175 lport->tpg_1 = tpg;
1176 return &tpg->se_tpg;
1177}
1178
1179
1180
1181
1182static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(scsi_qla_host_t *vha,
1183 const be_id_t s_id)
1184{
1185 struct tcm_qla2xxx_lport *lport;
1186 struct se_node_acl *se_nacl;
1187 struct tcm_qla2xxx_nacl *nacl;
1188 u32 key;
1189
1190 lport = vha->vha_tgt.target_lport_ptr;
1191 if (!lport) {
1192 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1193 dump_stack();
1194 return NULL;
1195 }
1196
1197 key = sid_to_key(s_id);
1198 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1199
1200 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1201 if (!se_nacl) {
1202 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1203 return NULL;
1204 }
1205 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1206 se_nacl, se_nacl->initiatorname);
1207
1208 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1209 if (!nacl->fc_port) {
1210 pr_err("Unable to locate struct fc_port\n");
1211 return NULL;
1212 }
1213
1214 return nacl->fc_port;
1215}
1216
1217
1218
1219
1220static void tcm_qla2xxx_set_sess_by_s_id(
1221 struct tcm_qla2xxx_lport *lport,
1222 struct se_node_acl *new_se_nacl,
1223 struct tcm_qla2xxx_nacl *nacl,
1224 struct se_session *se_sess,
1225 struct fc_port *fc_port,
1226 be_id_t s_id)
1227{
1228 u32 key;
1229 void *slot;
1230 int rc;
1231
1232 key = sid_to_key(s_id);
1233 pr_debug("set_sess_by_s_id: %06x\n", key);
1234
1235 slot = btree_lookup32(&lport->lport_fcport_map, key);
1236 if (!slot) {
1237 if (new_se_nacl) {
1238 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1239 nacl->nport_id = key;
1240 rc = btree_insert32(&lport->lport_fcport_map, key,
1241 new_se_nacl, GFP_ATOMIC);
1242 if (rc)
1243 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1244 (int)key);
1245 } else {
1246 pr_debug("Wiping nonexisting fc_port entry\n");
1247 }
1248
1249 fc_port->se_sess = se_sess;
1250 nacl->fc_port = fc_port;
1251 return;
1252 }
1253
1254 if (nacl->fc_port) {
1255 if (new_se_nacl == NULL) {
1256 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1257 btree_remove32(&lport->lport_fcport_map, key);
1258 nacl->fc_port = NULL;
1259 return;
1260 }
1261 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1262 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1263 fc_port->se_sess = se_sess;
1264 nacl->fc_port = fc_port;
1265 return;
1266 }
1267
1268 if (new_se_nacl == NULL) {
1269 pr_debug("Clearing existing fc_port entry\n");
1270 btree_remove32(&lport->lport_fcport_map, key);
1271 return;
1272 }
1273
1274 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1275 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1276 fc_port->se_sess = se_sess;
1277 nacl->fc_port = fc_port;
1278
1279 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1280 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1281}
1282
1283
1284
1285
1286static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1287 scsi_qla_host_t *vha,
1288 const uint16_t loop_id)
1289{
1290 struct tcm_qla2xxx_lport *lport;
1291 struct se_node_acl *se_nacl;
1292 struct tcm_qla2xxx_nacl *nacl;
1293 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1294
1295 lport = vha->vha_tgt.target_lport_ptr;
1296 if (!lport) {
1297 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1298 dump_stack();
1299 return NULL;
1300 }
1301
1302 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1303
1304 fc_loopid = lport->lport_loopid_map + loop_id;
1305 se_nacl = fc_loopid->se_nacl;
1306 if (!se_nacl) {
1307 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1308 loop_id);
1309 return NULL;
1310 }
1311
1312 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1313
1314 if (!nacl->fc_port) {
1315 pr_err("Unable to locate struct fc_port\n");
1316 return NULL;
1317 }
1318
1319 return nacl->fc_port;
1320}
1321
1322
1323
1324
1325static void tcm_qla2xxx_set_sess_by_loop_id(
1326 struct tcm_qla2xxx_lport *lport,
1327 struct se_node_acl *new_se_nacl,
1328 struct tcm_qla2xxx_nacl *nacl,
1329 struct se_session *se_sess,
1330 struct fc_port *fc_port,
1331 uint16_t loop_id)
1332{
1333 struct se_node_acl *saved_nacl;
1334 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1335
1336 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1337
1338 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1339 lport->lport_loopid_map)[loop_id];
1340
1341 saved_nacl = fc_loopid->se_nacl;
1342 if (!saved_nacl) {
1343 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1344 fc_loopid->se_nacl = new_se_nacl;
1345 if (fc_port->se_sess != se_sess)
1346 fc_port->se_sess = se_sess;
1347 if (nacl->fc_port != fc_port)
1348 nacl->fc_port = fc_port;
1349 return;
1350 }
1351
1352 if (nacl->fc_port) {
1353 if (new_se_nacl == NULL) {
1354 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1355 fc_loopid->se_nacl = NULL;
1356 nacl->fc_port = NULL;
1357 return;
1358 }
1359
1360 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1361 fc_loopid->se_nacl = new_se_nacl;
1362 if (fc_port->se_sess != se_sess)
1363 fc_port->se_sess = se_sess;
1364 if (nacl->fc_port != fc_port)
1365 nacl->fc_port = fc_port;
1366 return;
1367 }
1368
1369 if (new_se_nacl == NULL) {
1370 pr_debug("Clearing fc_loopid->se_nacl\n");
1371 fc_loopid->se_nacl = NULL;
1372 return;
1373 }
1374
1375 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1376 fc_loopid->se_nacl = new_se_nacl;
1377 if (fc_port->se_sess != se_sess)
1378 fc_port->se_sess = se_sess;
1379 if (nacl->fc_port != fc_port)
1380 nacl->fc_port = fc_port;
1381
1382 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1383 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1384}
1385
1386
1387
1388
1389static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1390 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1391{
1392 struct se_session *se_sess = sess->se_sess;
1393
1394 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1395 sess, port_id_to_be_id(sess->d_id));
1396 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1397 sess, sess->loop_id);
1398}
1399
1400static void tcm_qla2xxx_free_session(struct fc_port *sess)
1401{
1402 struct qla_tgt *tgt = sess->tgt;
1403 struct qla_hw_data *ha = tgt->ha;
1404 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1405 struct se_session *se_sess;
1406 struct tcm_qla2xxx_lport *lport;
1407
1408 se_sess = sess->se_sess;
1409 if (!se_sess) {
1410 pr_err("struct fc_port->se_sess is NULL\n");
1411 dump_stack();
1412 return;
1413 }
1414
1415 lport = vha->vha_tgt.target_lport_ptr;
1416 if (!lport) {
1417 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1418 dump_stack();
1419 return;
1420 }
1421 target_wait_for_sess_cmds(se_sess);
1422
1423 target_remove_session(se_sess);
1424}
1425
1426static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
1427 struct se_session *se_sess, void *p)
1428{
1429 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1430 struct tcm_qla2xxx_tpg, se_tpg);
1431 struct tcm_qla2xxx_lport *lport = tpg->lport;
1432 struct qla_hw_data *ha = lport->qla_vha->hw;
1433 struct se_node_acl *se_nacl = se_sess->se_node_acl;
1434 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1435 struct tcm_qla2xxx_nacl, se_node_acl);
1436 struct fc_port *qlat_sess = p;
1437 uint16_t loop_id = qlat_sess->loop_id;
1438 unsigned long flags;
1439
1440
1441
1442
1443
1444 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1445 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, qlat_sess,
1446 port_id_to_be_id(qlat_sess->d_id));
1447 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
1448 se_sess, qlat_sess, loop_id);
1449 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1450
1451 return 0;
1452}
1453
1454
1455
1456
1457
1458static int tcm_qla2xxx_check_initiator_node_acl(
1459 scsi_qla_host_t *vha,
1460 unsigned char *fc_wwpn,
1461 struct fc_port *qlat_sess)
1462{
1463 struct qla_hw_data *ha = vha->hw;
1464 struct tcm_qla2xxx_lport *lport;
1465 struct tcm_qla2xxx_tpg *tpg;
1466 struct se_session *se_sess;
1467 unsigned char port_name[36];
1468 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1469 TCM_QLA2XXX_DEFAULT_TAGS;
1470
1471 lport = vha->vha_tgt.target_lport_ptr;
1472 if (!lport) {
1473 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1474 dump_stack();
1475 return -EINVAL;
1476 }
1477
1478
1479
1480 tpg = lport->tpg_1;
1481 if (!tpg) {
1482 pr_err("Unable to locate struct tcm_qla2xxx_lport->tpg_1\n");
1483 return -EINVAL;
1484 }
1485
1486
1487
1488
1489 memset(&port_name, 0, 36);
1490 snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
1491
1492
1493
1494
1495 se_sess = target_setup_session(&tpg->se_tpg, num_tags,
1496 sizeof(struct qla_tgt_cmd),
1497 TARGET_PROT_ALL, port_name,
1498 qlat_sess, tcm_qla2xxx_session_cb);
1499 if (IS_ERR(se_sess))
1500 return PTR_ERR(se_sess);
1501
1502 return 0;
1503}
1504
1505static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1506 uint16_t loop_id, bool conf_compl_supported)
1507{
1508 struct qla_tgt *tgt = sess->tgt;
1509 struct qla_hw_data *ha = tgt->ha;
1510 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1511 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1512 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1513 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1514 struct tcm_qla2xxx_nacl, se_node_acl);
1515 u32 key;
1516
1517
1518 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1519 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1520 sess, sess->port_name,
1521 sess->loop_id, loop_id, sess->d_id.b.domain,
1522 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1523 s_id.b.area, s_id.b.al_pa);
1524
1525 if (sess->loop_id != loop_id) {
1526
1527
1528
1529
1530
1531
1532
1533
1534 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1535 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1536
1537 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1538
1539 sess->loop_id = loop_id;
1540 }
1541
1542 if (sess->d_id.b24 != s_id.b24) {
1543 key = (((u32) sess->d_id.b.domain << 16) |
1544 ((u32) sess->d_id.b.area << 8) |
1545 ((u32) sess->d_id.b.al_pa));
1546
1547 if (btree_lookup32(&lport->lport_fcport_map, key))
1548 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1549 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1550 sess->d_id.b.domain, sess->d_id.b.area,
1551 sess->d_id.b.al_pa);
1552 else
1553 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1554 sess->d_id.b.domain, sess->d_id.b.area,
1555 sess->d_id.b.al_pa);
1556
1557 key = (((u32) s_id.b.domain << 16) |
1558 ((u32) s_id.b.area << 8) |
1559 ((u32) s_id.b.al_pa));
1560
1561 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1562 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1563 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1564 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1565 } else {
1566 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1567 GFP_ATOMIC);
1568 }
1569
1570 sess->d_id = s_id;
1571 nacl->nport_id = key;
1572 }
1573
1574 sess->conf_compl_supported = conf_compl_supported;
1575
1576}
1577
1578
1579
1580
1581static const struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1582 .find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag,
1583 .handle_cmd = tcm_qla2xxx_handle_cmd,
1584 .handle_data = tcm_qla2xxx_handle_data,
1585 .handle_tmr = tcm_qla2xxx_handle_tmr,
1586 .get_cmd = tcm_qla2xxx_get_cmd,
1587 .rel_cmd = tcm_qla2xxx_rel_cmd,
1588 .free_cmd = tcm_qla2xxx_free_cmd,
1589 .free_mcmd = tcm_qla2xxx_free_mcmd,
1590 .free_session = tcm_qla2xxx_free_session,
1591 .update_sess = tcm_qla2xxx_update_sess,
1592 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1593 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1594 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1595 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1596 .put_sess = tcm_qla2xxx_put_sess,
1597 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1598 .get_dif_tags = tcm_qla2xxx_dif_tags,
1599 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1600};
1601
1602static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1603{
1604 int rc;
1605
1606 rc = btree_init32(&lport->lport_fcport_map);
1607 if (rc) {
1608 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1609 return rc;
1610 }
1611
1612 lport->lport_loopid_map =
1613 vzalloc(array_size(65536,
1614 sizeof(struct tcm_qla2xxx_fc_loopid)));
1615 if (!lport->lport_loopid_map) {
1616 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1617 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1618 btree_destroy32(&lport->lport_fcport_map);
1619 return -ENOMEM;
1620 }
1621 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1622 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1623 return 0;
1624}
1625
1626static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1627 void *target_lport_ptr,
1628 u64 npiv_wwpn, u64 npiv_wwnn)
1629{
1630 struct qla_hw_data *ha = vha->hw;
1631 struct tcm_qla2xxx_lport *lport =
1632 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1633
1634
1635
1636 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1637 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1638 lport->qla_vha = vha;
1639
1640 return 0;
1641}
1642
1643static struct se_wwn *tcm_qla2xxx_make_lport(
1644 struct target_fabric_configfs *tf,
1645 struct config_group *group,
1646 const char *name)
1647{
1648 struct tcm_qla2xxx_lport *lport;
1649 u64 wwpn;
1650 int ret = -ENODEV;
1651
1652 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
1653 return ERR_PTR(-EINVAL);
1654
1655 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1656 if (!lport) {
1657 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1658 return ERR_PTR(-ENOMEM);
1659 }
1660 lport->lport_wwpn = wwpn;
1661 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1662 wwpn);
1663 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1664
1665 ret = tcm_qla2xxx_init_lport(lport);
1666 if (ret != 0)
1667 goto out;
1668
1669 ret = qlt_lport_register(lport, wwpn, 0, 0,
1670 tcm_qla2xxx_lport_register_cb);
1671 if (ret != 0)
1672 goto out_lport;
1673
1674 return &lport->lport_wwn;
1675out_lport:
1676 vfree(lport->lport_loopid_map);
1677 btree_destroy32(&lport->lport_fcport_map);
1678out:
1679 kfree(lport);
1680 return ERR_PTR(ret);
1681}
1682
1683static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1684{
1685 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1686 struct tcm_qla2xxx_lport, lport_wwn);
1687 struct scsi_qla_host *vha = lport->qla_vha;
1688 struct se_node_acl *node;
1689 u32 key = 0;
1690
1691
1692
1693
1694
1695
1696 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1697 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1698
1699 qlt_lport_deregister(vha);
1700
1701 vfree(lport->lport_loopid_map);
1702 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1703 btree_remove32(&lport->lport_fcport_map, key);
1704 btree_destroy32(&lport->lport_fcport_map);
1705 kfree(lport);
1706}
1707
1708static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1709 void *target_lport_ptr,
1710 u64 npiv_wwpn, u64 npiv_wwnn)
1711{
1712 struct fc_vport *vport;
1713 struct Scsi_Host *sh = base_vha->host;
1714 struct scsi_qla_host *npiv_vha;
1715 struct tcm_qla2xxx_lport *lport =
1716 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1717 struct tcm_qla2xxx_lport *base_lport =
1718 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1719 struct fc_vport_identifiers vport_id;
1720
1721 if (qla_ini_mode_enabled(base_vha)) {
1722 pr_err("qla2xxx base_vha not enabled for target mode\n");
1723 return -EPERM;
1724 }
1725
1726 if (!base_lport || !base_lport->tpg_1 ||
1727 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1728 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1729 return -EPERM;
1730 }
1731
1732 memset(&vport_id, 0, sizeof(vport_id));
1733 vport_id.port_name = npiv_wwpn;
1734 vport_id.node_name = npiv_wwnn;
1735 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1736 vport_id.vport_type = FC_PORTTYPE_NPIV;
1737 vport_id.disable = false;
1738
1739 vport = fc_vport_create(sh, 0, &vport_id);
1740 if (!vport) {
1741 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1742 return -ENODEV;
1743 }
1744
1745
1746
1747 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1748 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1749 lport->qla_vha = npiv_vha;
1750 scsi_host_get(npiv_vha->host);
1751 return 0;
1752}
1753
1754
1755static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1756 struct target_fabric_configfs *tf,
1757 struct config_group *group,
1758 const char *name)
1759{
1760 struct tcm_qla2xxx_lport *lport;
1761 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1762 char *p, tmp[128];
1763 int ret;
1764
1765 snprintf(tmp, 128, "%s", name);
1766
1767 p = strchr(tmp, '@');
1768 if (!p) {
1769 pr_err("Unable to locate NPIV '@' separator\n");
1770 return ERR_PTR(-EINVAL);
1771 }
1772 *p++ = '\0';
1773
1774 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1775 return ERR_PTR(-EINVAL);
1776
1777 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1778 &npiv_wwpn, &npiv_wwnn) < 0)
1779 return ERR_PTR(-EINVAL);
1780
1781 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1782 if (!lport) {
1783 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1784 return ERR_PTR(-ENOMEM);
1785 }
1786 lport->lport_npiv_wwpn = npiv_wwpn;
1787 lport->lport_npiv_wwnn = npiv_wwnn;
1788 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1789
1790 ret = tcm_qla2xxx_init_lport(lport);
1791 if (ret != 0)
1792 goto out;
1793
1794 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1795 tcm_qla2xxx_lport_register_npiv_cb);
1796 if (ret != 0)
1797 goto out_lport;
1798
1799 return &lport->lport_wwn;
1800out_lport:
1801 vfree(lport->lport_loopid_map);
1802 btree_destroy32(&lport->lport_fcport_map);
1803out:
1804 kfree(lport);
1805 return ERR_PTR(ret);
1806}
1807
1808static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1809{
1810 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1811 struct tcm_qla2xxx_lport, lport_wwn);
1812 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1813 struct qla_hw_data *ha = npiv_vha->hw;
1814 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1815
1816 scsi_host_put(npiv_vha->host);
1817
1818
1819
1820 fc_vport_terminate(npiv_vha->fc_vport);
1821 scsi_host_put(base_vha->host);
1822 kfree(lport);
1823}
1824
1825
1826static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1827 char *page)
1828{
1829 return sprintf(page,
1830 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1831 QLA2XXX_VERSION, utsname()->sysname,
1832 utsname()->machine, utsname()->release);
1833}
1834
1835CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1836
1837static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1838 &tcm_qla2xxx_wwn_attr_version,
1839 NULL,
1840};
1841
1842static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1843 .module = THIS_MODULE,
1844 .fabric_name = "qla2xxx",
1845 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1846
1847
1848
1849
1850 .max_data_sg_nents = 1200,
1851 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1852 .tpg_get_tag = tcm_qla2xxx_get_tag,
1853 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1854 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1855 .tpg_check_demo_mode_write_protect =
1856 tcm_qla2xxx_check_demo_write_protect,
1857 .tpg_check_prod_mode_write_protect =
1858 tcm_qla2xxx_check_prod_write_protect,
1859 .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
1860 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1861 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1862 .check_stop_free = tcm_qla2xxx_check_stop_free,
1863 .release_cmd = tcm_qla2xxx_release_cmd,
1864 .close_session = tcm_qla2xxx_close_session,
1865 .sess_get_index = tcm_qla2xxx_sess_get_index,
1866 .sess_get_initiator_sid = NULL,
1867 .write_pending = tcm_qla2xxx_write_pending,
1868 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1869 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1870 .queue_data_in = tcm_qla2xxx_queue_data_in,
1871 .queue_status = tcm_qla2xxx_queue_status,
1872 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1873 .aborted_task = tcm_qla2xxx_aborted_task,
1874
1875
1876
1877
1878 .fabric_make_wwn = tcm_qla2xxx_make_lport,
1879 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1880 .fabric_make_tpg = tcm_qla2xxx_make_tpg,
1881 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1882 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1883
1884 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1885 .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
1886 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1887};
1888
1889static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1890 .module = THIS_MODULE,
1891 .fabric_name = "qla2xxx_npiv",
1892 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1893 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1894 .tpg_get_tag = tcm_qla2xxx_get_tag,
1895 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1896 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1897 .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
1898 .tpg_check_prod_mode_write_protect =
1899 tcm_qla2xxx_check_prod_write_protect,
1900 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1901 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1902 .check_stop_free = tcm_qla2xxx_check_stop_free,
1903 .release_cmd = tcm_qla2xxx_release_cmd,
1904 .close_session = tcm_qla2xxx_close_session,
1905 .sess_get_index = tcm_qla2xxx_sess_get_index,
1906 .sess_get_initiator_sid = NULL,
1907 .write_pending = tcm_qla2xxx_write_pending,
1908 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1909 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1910 .queue_data_in = tcm_qla2xxx_queue_data_in,
1911 .queue_status = tcm_qla2xxx_queue_status,
1912 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1913 .aborted_task = tcm_qla2xxx_aborted_task,
1914
1915
1916
1917
1918 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1919 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1920 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1921 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1922 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1923
1924 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1925 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1926};
1927
1928static int tcm_qla2xxx_register_configfs(void)
1929{
1930 int ret;
1931
1932 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1933 QLA2XXX_VERSION, utsname()->sysname,
1934 utsname()->machine, utsname()->release);
1935
1936 ret = target_register_template(&tcm_qla2xxx_ops);
1937 if (ret)
1938 return ret;
1939
1940 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
1941 if (ret)
1942 goto out_fabric;
1943
1944 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
1945 WQ_MEM_RECLAIM, 0);
1946 if (!tcm_qla2xxx_free_wq) {
1947 ret = -ENOMEM;
1948 goto out_fabric_npiv;
1949 }
1950
1951 return 0;
1952
1953out_fabric_npiv:
1954 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1955out_fabric:
1956 target_unregister_template(&tcm_qla2xxx_ops);
1957 return ret;
1958}
1959
1960static void tcm_qla2xxx_deregister_configfs(void)
1961{
1962 destroy_workqueue(tcm_qla2xxx_free_wq);
1963
1964 target_unregister_template(&tcm_qla2xxx_ops);
1965 target_unregister_template(&tcm_qla2xxx_npiv_ops);
1966}
1967
1968static int __init tcm_qla2xxx_init(void)
1969{
1970 int ret;
1971
1972 BUILD_BUG_ON(sizeof(struct abts_recv_from_24xx) != 64);
1973 BUILD_BUG_ON(sizeof(struct abts_resp_from_24xx_fw) != 64);
1974 BUILD_BUG_ON(sizeof(struct atio7_fcp_cmnd) != 32);
1975 BUILD_BUG_ON(sizeof(struct atio_from_isp) != 64);
1976 BUILD_BUG_ON(sizeof(struct ba_acc_le) != 12);
1977 BUILD_BUG_ON(sizeof(struct ba_rjt_le) != 4);
1978 BUILD_BUG_ON(sizeof(struct ctio7_from_24xx) != 64);
1979 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
1980 BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
1981 BUILD_BUG_ON(sizeof(struct ctio_crc_from_fw) != 64);
1982 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
1983 BUILD_BUG_ON(sizeof(struct fcp_hdr) != 24);
1984 BUILD_BUG_ON(sizeof(struct fcp_hdr_le) != 24);
1985 BUILD_BUG_ON(sizeof(struct nack_to_isp) != 64);
1986
1987 ret = tcm_qla2xxx_register_configfs();
1988 if (ret < 0)
1989 return ret;
1990
1991 return 0;
1992}
1993
1994static void __exit tcm_qla2xxx_exit(void)
1995{
1996 tcm_qla2xxx_deregister_configfs();
1997}
1998
1999MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
2000MODULE_LICENSE("GPL");
2001module_init(tcm_qla2xxx_init);
2002module_exit(tcm_qla2xxx_exit);
2003
