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23#include <linux/export.h>
24
25#include "bfad_drv.h"
26#include "bfad_im.h"
27#include "bfa_fcs.h"
28
29BFA_TRC_FILE(LDRV, IM);
30
31DEFINE_IDR(bfad_im_port_index);
32struct scsi_transport_template *bfad_im_scsi_transport_template;
33struct scsi_transport_template *bfad_im_scsi_vport_transport_template;
34static void bfad_im_itnim_work_handler(struct work_struct *work);
35static int bfad_im_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmnd);
36static int bfad_im_slave_alloc(struct scsi_device *sdev);
37static void bfad_im_fc_rport_add(struct bfad_im_port_s *im_port,
38 struct bfad_itnim_s *itnim);
39
40void
41bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio,
42 enum bfi_ioim_status io_status, u8 scsi_status,
43 int sns_len, u8 *sns_info, s32 residue)
44{
45 struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
46 struct bfad_s *bfad = drv;
47 struct bfad_itnim_data_s *itnim_data;
48 struct bfad_itnim_s *itnim;
49 u8 host_status = DID_OK;
50
51 switch (io_status) {
52 case BFI_IOIM_STS_OK:
53 bfa_trc(bfad, scsi_status);
54 scsi_set_resid(cmnd, 0);
55
56 if (sns_len > 0) {
57 bfa_trc(bfad, sns_len);
58 if (sns_len > SCSI_SENSE_BUFFERSIZE)
59 sns_len = SCSI_SENSE_BUFFERSIZE;
60 memcpy(cmnd->sense_buffer, sns_info, sns_len);
61 }
62
63 if (residue > 0) {
64 bfa_trc(bfad, residue);
65 scsi_set_resid(cmnd, residue);
66 if (!sns_len && (scsi_status == SAM_STAT_GOOD) &&
67 (scsi_bufflen(cmnd) - residue) <
68 cmnd->underflow) {
69 bfa_trc(bfad, 0);
70 host_status = DID_ERROR;
71 }
72 }
73 cmnd->result = ScsiResult(host_status, scsi_status);
74
75 break;
76
77 case BFI_IOIM_STS_ABORTED:
78 case BFI_IOIM_STS_TIMEDOUT:
79 case BFI_IOIM_STS_PATHTOV:
80 default:
81 host_status = DID_ERROR;
82 cmnd->result = ScsiResult(host_status, 0);
83 }
84
85
86 if (cmnd->device->host != NULL)
87 scsi_dma_unmap(cmnd);
88
89 cmnd->host_scribble = NULL;
90 bfa_trc(bfad, cmnd->result);
91
92 itnim_data = cmnd->device->hostdata;
93 if (itnim_data) {
94 itnim = itnim_data->itnim;
95 if (!cmnd->result && itnim &&
96 (bfa_lun_queue_depth > cmnd->device->queue_depth)) {
97
98 bfad_ramp_up_qdepth(itnim, cmnd->device);
99 } else if (cmnd->result == SAM_STAT_TASK_SET_FULL && itnim) {
100
101 bfad_handle_qfull(itnim, cmnd->device);
102 }
103 }
104
105 cmnd->scsi_done(cmnd);
106}
107
108void
109bfa_cb_ioim_good_comp(void *drv, struct bfad_ioim_s *dio)
110{
111 struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
112 struct bfad_itnim_data_s *itnim_data;
113 struct bfad_itnim_s *itnim;
114
115 cmnd->result = ScsiResult(DID_OK, SCSI_STATUS_GOOD);
116
117
118 if (cmnd->device->host != NULL)
119 scsi_dma_unmap(cmnd);
120
121 cmnd->host_scribble = NULL;
122
123
124 if (bfa_lun_queue_depth > cmnd->device->queue_depth) {
125 itnim_data = cmnd->device->hostdata;
126 if (itnim_data) {
127 itnim = itnim_data->itnim;
128 if (itnim)
129 bfad_ramp_up_qdepth(itnim, cmnd->device);
130 }
131 }
132
133 cmnd->scsi_done(cmnd);
134}
135
136void
137bfa_cb_ioim_abort(void *drv, struct bfad_ioim_s *dio)
138{
139 struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
140 struct bfad_s *bfad = drv;
141
142 cmnd->result = ScsiResult(DID_ERROR, 0);
143
144
145 if (cmnd->device->host != NULL)
146 scsi_dma_unmap(cmnd);
147
148 bfa_trc(bfad, cmnd->result);
149 cmnd->host_scribble = NULL;
150}
151
152void
153bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk,
154 enum bfi_tskim_status tsk_status)
155{
156 struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dtsk;
157 wait_queue_head_t *wq;
158
159 cmnd->SCp.Status |= tsk_status << 1;
160 set_bit(IO_DONE_BIT, (unsigned long *)&cmnd->SCp.Status);
161 wq = (wait_queue_head_t *) cmnd->SCp.ptr;
162 cmnd->SCp.ptr = NULL;
163
164 if (wq)
165 wake_up(wq);
166}
167
168
169
170
171
172
173
174static const char *
175bfad_im_info(struct Scsi_Host *shost)
176{
177 static char bfa_buf[256];
178 struct bfad_im_port_s *im_port =
179 (struct bfad_im_port_s *) shost->hostdata[0];
180 struct bfad_s *bfad = im_port->bfad;
181
182 memset(bfa_buf, 0, sizeof(bfa_buf));
183 snprintf(bfa_buf, sizeof(bfa_buf),
184 "QLogic BR-series FC/FCOE Adapter, hwpath: %s driver: %s",
185 bfad->pci_name, BFAD_DRIVER_VERSION);
186
187 return bfa_buf;
188}
189
190
191
192
193
194
195static int
196bfad_im_abort_handler(struct scsi_cmnd *cmnd)
197{
198 struct Scsi_Host *shost = cmnd->device->host;
199 struct bfad_im_port_s *im_port =
200 (struct bfad_im_port_s *) shost->hostdata[0];
201 struct bfad_s *bfad = im_port->bfad;
202 struct bfa_ioim_s *hal_io;
203 unsigned long flags;
204 u32 timeout;
205 int rc = FAILED;
206
207 spin_lock_irqsave(&bfad->bfad_lock, flags);
208 hal_io = (struct bfa_ioim_s *) cmnd->host_scribble;
209 if (!hal_io) {
210
211 rc = SUCCESS;
212 goto out;
213 }
214 if (hal_io->dio != (struct bfad_ioim_s *) cmnd) {
215 rc = FAILED;
216 goto out;
217 }
218
219 bfa_trc(bfad, hal_io->iotag);
220 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
221 "scsi%d: abort cmnd %p iotag %x\n",
222 im_port->shost->host_no, cmnd, hal_io->iotag);
223 (void) bfa_ioim_abort(hal_io);
224 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
225
226
227 timeout = 10;
228 while ((struct bfa_ioim_s *) cmnd->host_scribble == hal_io) {
229 set_current_state(TASK_UNINTERRUPTIBLE);
230 schedule_timeout(timeout);
231 if (timeout < 4 * HZ)
232 timeout *= 2;
233 }
234
235 cmnd->scsi_done(cmnd);
236 bfa_trc(bfad, hal_io->iotag);
237 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
238 "scsi%d: complete abort 0x%p iotag 0x%x\n",
239 im_port->shost->host_no, cmnd, hal_io->iotag);
240 return SUCCESS;
241out:
242 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
243 return rc;
244}
245
246static bfa_status_t
247bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd,
248 struct bfad_itnim_s *itnim)
249{
250 struct bfa_tskim_s *tskim;
251 struct bfa_itnim_s *bfa_itnim;
252 bfa_status_t rc = BFA_STATUS_OK;
253 struct scsi_lun scsilun;
254
255 tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd);
256 if (!tskim) {
257 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
258 "target reset, fail to allocate tskim\n");
259 rc = BFA_STATUS_FAILED;
260 goto out;
261 }
262
263
264
265
266
267 cmnd->host_scribble = NULL;
268 cmnd->SCp.Status = 0;
269 bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
270 memset(&scsilun, 0, sizeof(scsilun));
271 bfa_tskim_start(tskim, bfa_itnim, scsilun,
272 FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO);
273out:
274 return rc;
275}
276
277
278
279
280
281
282
283static int
284bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd)
285{
286 struct Scsi_Host *shost = cmnd->device->host;
287 struct bfad_im_port_s *im_port =
288 (struct bfad_im_port_s *) shost->hostdata[0];
289 struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata;
290 struct bfad_s *bfad = im_port->bfad;
291 struct bfa_tskim_s *tskim;
292 struct bfad_itnim_s *itnim;
293 struct bfa_itnim_s *bfa_itnim;
294 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
295 int rc = SUCCESS;
296 unsigned long flags;
297 enum bfi_tskim_status task_status;
298 struct scsi_lun scsilun;
299
300 spin_lock_irqsave(&bfad->bfad_lock, flags);
301 itnim = itnim_data->itnim;
302 if (!itnim) {
303 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
304 rc = FAILED;
305 goto out;
306 }
307
308 tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd);
309 if (!tskim) {
310 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
311 "LUN reset, fail to allocate tskim");
312 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
313 rc = FAILED;
314 goto out;
315 }
316
317
318
319
320
321 cmnd->host_scribble = NULL;
322 cmnd->SCp.ptr = (char *)&wq;
323 cmnd->SCp.Status = 0;
324 bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
325 int_to_scsilun(cmnd->device->lun, &scsilun);
326 bfa_tskim_start(tskim, bfa_itnim, scsilun,
327 FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO);
328 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
329
330 wait_event(wq, test_bit(IO_DONE_BIT,
331 (unsigned long *)&cmnd->SCp.Status));
332
333 task_status = cmnd->SCp.Status >> 1;
334 if (task_status != BFI_TSKIM_STS_OK) {
335 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
336 "LUN reset failure, status: %d\n", task_status);
337 rc = FAILED;
338 }
339
340out:
341 return rc;
342}
343
344
345
346
347static int
348bfad_im_reset_bus_handler(struct scsi_cmnd *cmnd)
349{
350 struct Scsi_Host *shost = cmnd->device->host;
351 struct bfad_im_port_s *im_port =
352 (struct bfad_im_port_s *) shost->hostdata[0];
353 struct bfad_s *bfad = im_port->bfad;
354 struct bfad_itnim_s *itnim;
355 unsigned long flags;
356 u32 i, rc, err_cnt = 0;
357 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
358 enum bfi_tskim_status task_status;
359
360 spin_lock_irqsave(&bfad->bfad_lock, flags);
361 for (i = 0; i < MAX_FCP_TARGET; i++) {
362 itnim = bfad_get_itnim(im_port, i);
363 if (itnim) {
364 cmnd->SCp.ptr = (char *)&wq;
365 rc = bfad_im_target_reset_send(bfad, cmnd, itnim);
366 if (rc != BFA_STATUS_OK) {
367 err_cnt++;
368 continue;
369 }
370
371
372 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
373 wait_event(wq, test_bit(IO_DONE_BIT,
374 (unsigned long *)&cmnd->SCp.Status));
375 spin_lock_irqsave(&bfad->bfad_lock, flags);
376
377 task_status = cmnd->SCp.Status >> 1;
378 if (task_status != BFI_TSKIM_STS_OK) {
379 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
380 "target reset failure,"
381 " status: %d\n", task_status);
382 err_cnt++;
383 }
384 }
385 }
386 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
387
388 if (err_cnt)
389 return FAILED;
390
391 return SUCCESS;
392}
393
394
395
396
397static void
398bfad_im_slave_destroy(struct scsi_device *sdev)
399{
400 sdev->hostdata = NULL;
401 return;
402}
403
404
405
406
407
408
409
410
411
412void
413bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
414 struct bfad_itnim_s **itnim_drv)
415{
416 *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC);
417 if (*itnim_drv == NULL)
418 return;
419
420 (*itnim_drv)->im = bfad->im;
421 *itnim = &(*itnim_drv)->fcs_itnim;
422 (*itnim_drv)->state = ITNIM_STATE_NONE;
423
424
425
426
427 INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler);
428 bfad->bfad_flags |= BFAD_RPORT_ONLINE;
429}
430
431
432
433
434
435void
436bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv)
437{
438 struct bfad_port_s *port;
439 wwn_t wwpn;
440 u32 fcid;
441 char wwpn_str[32], fcid_str[16];
442 struct bfad_im_s *im = itnim_drv->im;
443
444
445 WARN_ON(itnim_drv->state == ITNIM_STATE_ONLINE);
446
447 itnim_drv->queue_work = 1;
448
449 if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING)
450 itnim_drv->queue_work = 0;
451
452 itnim_drv->state = ITNIM_STATE_FREE;
453 port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim);
454 itnim_drv->im_port = port->im_port;
455 wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim);
456 fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim);
457 wwn2str(wwpn_str, wwpn);
458 fcid2str(fcid_str, fcid);
459 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
460 "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n",
461 port->im_port->shost->host_no,
462 fcid_str, wwpn_str);
463
464
465 if (itnim_drv->queue_work)
466 queue_work(im->drv_workq, &itnim_drv->itnim_work);
467}
468
469
470
471
472
473void
474bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv)
475{
476 struct bfad_port_s *port;
477 struct bfad_im_s *im = itnim_drv->im;
478
479 itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim);
480 port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim);
481 itnim_drv->state = ITNIM_STATE_ONLINE;
482 itnim_drv->queue_work = 1;
483 itnim_drv->im_port = port->im_port;
484
485
486 if (itnim_drv->queue_work)
487 queue_work(im->drv_workq, &itnim_drv->itnim_work);
488}
489
490
491
492
493
494void
495bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv)
496{
497 struct bfad_port_s *port;
498 struct bfad_s *bfad;
499 struct bfad_im_s *im = itnim_drv->im;
500
501 port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim);
502 bfad = port->bfad;
503 if ((bfad->pport.flags & BFAD_PORT_DELETE) ||
504 (port->flags & BFAD_PORT_DELETE)) {
505 itnim_drv->state = ITNIM_STATE_OFFLINE;
506 return;
507 }
508 itnim_drv->im_port = port->im_port;
509 itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING;
510 itnim_drv->queue_work = 1;
511
512
513 if (itnim_drv->queue_work)
514 queue_work(im->drv_workq, &itnim_drv->itnim_work);
515}
516
517
518
519
520int
521bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port,
522 struct device *dev)
523{
524 int error = 1;
525
526 mutex_lock(&bfad_mutex);
527 error = idr_alloc(&bfad_im_port_index, im_port, 0, 0, GFP_KERNEL);
528 if (error < 0) {
529 mutex_unlock(&bfad_mutex);
530 printk(KERN_WARNING "idr_alloc failure\n");
531 goto out;
532 }
533 im_port->idr_id = error;
534 mutex_unlock(&bfad_mutex);
535
536 im_port->shost = bfad_scsi_host_alloc(im_port, bfad);
537 if (!im_port->shost) {
538 error = 1;
539 goto out_free_idr;
540 }
541
542 im_port->shost->hostdata[0] = (unsigned long)im_port;
543 im_port->shost->unique_id = im_port->idr_id;
544 im_port->shost->this_id = -1;
545 im_port->shost->max_id = MAX_FCP_TARGET;
546 im_port->shost->max_lun = MAX_FCP_LUN;
547 im_port->shost->max_cmd_len = 16;
548 im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth;
549 if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE)
550 im_port->shost->transportt = bfad_im_scsi_transport_template;
551 else
552 im_port->shost->transportt =
553 bfad_im_scsi_vport_transport_template;
554
555 error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev);
556 if (error) {
557 printk(KERN_WARNING "scsi_add_host failure %d\n", error);
558 goto out_fc_rel;
559 }
560
561 return 0;
562
563out_fc_rel:
564 scsi_host_put(im_port->shost);
565 im_port->shost = NULL;
566out_free_idr:
567 mutex_lock(&bfad_mutex);
568 idr_remove(&bfad_im_port_index, im_port->idr_id);
569 mutex_unlock(&bfad_mutex);
570out:
571 return error;
572}
573
574void
575bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port)
576{
577 bfa_trc(bfad, bfad->inst_no);
578 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Free scsi%d\n",
579 im_port->shost->host_no);
580
581 fc_remove_host(im_port->shost);
582
583 scsi_remove_host(im_port->shost);
584 scsi_host_put(im_port->shost);
585
586 mutex_lock(&bfad_mutex);
587 idr_remove(&bfad_im_port_index, im_port->idr_id);
588 mutex_unlock(&bfad_mutex);
589}
590
591static void
592bfad_im_port_delete_handler(struct work_struct *work)
593{
594 struct bfad_im_port_s *im_port =
595 container_of(work, struct bfad_im_port_s, port_delete_work);
596
597 if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) {
598 im_port->flags |= BFAD_PORT_DELETE;
599 fc_vport_terminate(im_port->fc_vport);
600 }
601}
602
603bfa_status_t
604bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port)
605{
606 int rc = BFA_STATUS_OK;
607 struct bfad_im_port_s *im_port;
608
609 im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC);
610 if (im_port == NULL) {
611 rc = BFA_STATUS_ENOMEM;
612 goto ext;
613 }
614 port->im_port = im_port;
615 im_port->port = port;
616 im_port->bfad = bfad;
617
618 INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler);
619 INIT_LIST_HEAD(&im_port->itnim_mapped_list);
620 INIT_LIST_HEAD(&im_port->binding_list);
621
622ext:
623 return rc;
624}
625
626void
627bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port)
628{
629 struct bfad_im_port_s *im_port = port->im_port;
630
631 queue_work(bfad->im->drv_workq,
632 &im_port->port_delete_work);
633}
634
635void
636bfad_im_port_clean(struct bfad_im_port_s *im_port)
637{
638 struct bfad_fcp_binding *bp, *bp_new;
639 unsigned long flags;
640 struct bfad_s *bfad = im_port->bfad;
641
642 spin_lock_irqsave(&bfad->bfad_lock, flags);
643 list_for_each_entry_safe(bp, bp_new, &im_port->binding_list,
644 list_entry) {
645 list_del(&bp->list_entry);
646 kfree(bp);
647 }
648
649
650 WARN_ON(!list_empty(&im_port->itnim_mapped_list));
651
652 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
653}
654
655static void bfad_aen_im_notify_handler(struct work_struct *work)
656{
657 struct bfad_im_s *im =
658 container_of(work, struct bfad_im_s, aen_im_notify_work);
659 struct bfa_aen_entry_s *aen_entry;
660 struct bfad_s *bfad = im->bfad;
661 struct Scsi_Host *shost = bfad->pport.im_port->shost;
662 void *event_data;
663 unsigned long flags;
664
665 while (!list_empty(&bfad->active_aen_q)) {
666 spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags);
667 bfa_q_deq(&bfad->active_aen_q, &aen_entry);
668 spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags);
669 event_data = (char *)aen_entry + sizeof(struct list_head);
670 fc_host_post_vendor_event(shost, fc_get_event_number(),
671 sizeof(struct bfa_aen_entry_s) -
672 sizeof(struct list_head),
673 (char *)event_data, BFAD_NL_VENDOR_ID);
674 spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags);
675 list_add_tail(&aen_entry->qe, &bfad->free_aen_q);
676 spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags);
677 }
678}
679
680bfa_status_t
681bfad_im_probe(struct bfad_s *bfad)
682{
683 struct bfad_im_s *im;
684
685 im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL);
686 if (im == NULL)
687 return BFA_STATUS_ENOMEM;
688
689 bfad->im = im;
690 im->bfad = bfad;
691
692 if (bfad_thread_workq(bfad) != BFA_STATUS_OK) {
693 kfree(im);
694 return BFA_STATUS_FAILED;
695 }
696
697 INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler);
698 return BFA_STATUS_OK;
699}
700
701void
702bfad_im_probe_undo(struct bfad_s *bfad)
703{
704 if (bfad->im) {
705 bfad_destroy_workq(bfad->im);
706 kfree(bfad->im);
707 bfad->im = NULL;
708 }
709}
710
711struct Scsi_Host *
712bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad)
713{
714 struct scsi_host_template *sht;
715
716 if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE)
717 sht = &bfad_im_scsi_host_template;
718 else
719 sht = &bfad_im_vport_template;
720
721 if (max_xfer_size != BFAD_MAX_SECTORS >> 1)
722 sht->max_sectors = max_xfer_size << 1;
723
724 sht->sg_tablesize = bfad->cfg_data.io_max_sge;
725
726 return scsi_host_alloc(sht, sizeof(unsigned long));
727}
728
729void
730bfad_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port)
731{
732 if (!(im_port->flags & BFAD_PORT_DELETE))
733 flush_workqueue(bfad->im->drv_workq);
734 bfad_im_scsi_host_free(im_port->bfad, im_port);
735 bfad_im_port_clean(im_port);
736 kfree(im_port);
737}
738
739void
740bfad_destroy_workq(struct bfad_im_s *im)
741{
742 if (im && im->drv_workq) {
743 flush_workqueue(im->drv_workq);
744 destroy_workqueue(im->drv_workq);
745 im->drv_workq = NULL;
746 }
747}
748
749bfa_status_t
750bfad_thread_workq(struct bfad_s *bfad)
751{
752 struct bfad_im_s *im = bfad->im;
753
754 bfa_trc(bfad, 0);
755 snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d",
756 bfad->inst_no);
757 im->drv_workq = create_singlethread_workqueue(im->drv_workq_name);
758 if (!im->drv_workq)
759 return BFA_STATUS_FAILED;
760
761 return BFA_STATUS_OK;
762}
763
764
765
766
767
768
769
770
771
772static int
773bfad_im_slave_configure(struct scsi_device *sdev)
774{
775 if (sdev->tagged_supported)
776 scsi_activate_tcq(sdev, bfa_lun_queue_depth);
777 else
778 scsi_deactivate_tcq(sdev, bfa_lun_queue_depth);
779
780 return 0;
781}
782
783struct scsi_host_template bfad_im_scsi_host_template = {
784 .module = THIS_MODULE,
785 .name = BFAD_DRIVER_NAME,
786 .info = bfad_im_info,
787 .queuecommand = bfad_im_queuecommand,
788 .eh_abort_handler = bfad_im_abort_handler,
789 .eh_device_reset_handler = bfad_im_reset_lun_handler,
790 .eh_bus_reset_handler = bfad_im_reset_bus_handler,
791
792 .slave_alloc = bfad_im_slave_alloc,
793 .slave_configure = bfad_im_slave_configure,
794 .slave_destroy = bfad_im_slave_destroy,
795
796 .this_id = -1,
797 .sg_tablesize = BFAD_IO_MAX_SGE,
798 .cmd_per_lun = 3,
799 .use_clustering = ENABLE_CLUSTERING,
800 .shost_attrs = bfad_im_host_attrs,
801 .max_sectors = BFAD_MAX_SECTORS,
802 .vendor_id = BFA_PCI_VENDOR_ID_BROCADE,
803};
804
805struct scsi_host_template bfad_im_vport_template = {
806 .module = THIS_MODULE,
807 .name = BFAD_DRIVER_NAME,
808 .info = bfad_im_info,
809 .queuecommand = bfad_im_queuecommand,
810 .eh_abort_handler = bfad_im_abort_handler,
811 .eh_device_reset_handler = bfad_im_reset_lun_handler,
812 .eh_bus_reset_handler = bfad_im_reset_bus_handler,
813
814 .slave_alloc = bfad_im_slave_alloc,
815 .slave_configure = bfad_im_slave_configure,
816 .slave_destroy = bfad_im_slave_destroy,
817
818 .this_id = -1,
819 .sg_tablesize = BFAD_IO_MAX_SGE,
820 .cmd_per_lun = 3,
821 .use_clustering = ENABLE_CLUSTERING,
822 .shost_attrs = bfad_im_vport_attrs,
823 .max_sectors = BFAD_MAX_SECTORS,
824};
825
826bfa_status_t
827bfad_im_module_init(void)
828{
829 bfad_im_scsi_transport_template =
830 fc_attach_transport(&bfad_im_fc_function_template);
831 if (!bfad_im_scsi_transport_template)
832 return BFA_STATUS_ENOMEM;
833
834 bfad_im_scsi_vport_transport_template =
835 fc_attach_transport(&bfad_im_vport_fc_function_template);
836 if (!bfad_im_scsi_vport_transport_template) {
837 fc_release_transport(bfad_im_scsi_transport_template);
838 return BFA_STATUS_ENOMEM;
839 }
840
841 return BFA_STATUS_OK;
842}
843
844void
845bfad_im_module_exit(void)
846{
847 if (bfad_im_scsi_transport_template)
848 fc_release_transport(bfad_im_scsi_transport_template);
849
850 if (bfad_im_scsi_vport_transport_template)
851 fc_release_transport(bfad_im_scsi_vport_transport_template);
852}
853
854void
855bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev)
856{
857 struct scsi_device *tmp_sdev;
858
859 if (((jiffies - itnim->last_ramp_up_time) >
860 BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) &&
861 ((jiffies - itnim->last_queue_full_time) >
862 BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) {
863 shost_for_each_device(tmp_sdev, sdev->host) {
864 if (bfa_lun_queue_depth > tmp_sdev->queue_depth) {
865 if (tmp_sdev->id != sdev->id)
866 continue;
867 if (tmp_sdev->ordered_tags)
868 scsi_adjust_queue_depth(tmp_sdev,
869 MSG_ORDERED_TAG,
870 tmp_sdev->queue_depth + 1);
871 else
872 scsi_adjust_queue_depth(tmp_sdev,
873 MSG_SIMPLE_TAG,
874 tmp_sdev->queue_depth + 1);
875
876 itnim->last_ramp_up_time = jiffies;
877 }
878 }
879 }
880}
881
882void
883bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev)
884{
885 struct scsi_device *tmp_sdev;
886
887 itnim->last_queue_full_time = jiffies;
888
889 shost_for_each_device(tmp_sdev, sdev->host) {
890 if (tmp_sdev->id != sdev->id)
891 continue;
892 scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1);
893 }
894}
895
896struct bfad_itnim_s *
897bfad_get_itnim(struct bfad_im_port_s *im_port, int id)
898{
899 struct bfad_itnim_s *itnim = NULL;
900
901
902 list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) {
903 if (id == itnim->scsi_tgt_id)
904 return itnim;
905 }
906
907 return NULL;
908}
909
910
911
912
913
914
915
916
917
918static int
919bfad_im_check_if_make_lun_visible(struct scsi_device *sdev,
920 struct fc_rport *rport)
921{
922 struct bfad_itnim_data_s *itnim_data =
923 (struct bfad_itnim_data_s *) rport->dd_data;
924 struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa;
925 struct bfa_rport_s *bfa_rport = itnim_data->itnim->bfa_itnim->rport;
926 struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(bfa);
927 int i = 0, ret = -ENXIO;
928
929 for (i = 0; i < MAX_LUN_MASK_CFG; i++) {
930 if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE &&
931 scsilun_to_int(&lun_list[i].lun) == sdev->lun &&
932 lun_list[i].rp_tag == bfa_rport->rport_tag &&
933 lun_list[i].lp_tag == (u8)bfa_rport->rport_info.lp_tag) {
934 ret = BFA_STATUS_OK;
935 break;
936 }
937 }
938 return ret;
939}
940
941
942
943
944static int
945bfad_im_slave_alloc(struct scsi_device *sdev)
946{
947 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
948 struct bfad_itnim_data_s *itnim_data;
949 struct bfa_s *bfa;
950
951 if (!rport || fc_remote_port_chkready(rport))
952 return -ENXIO;
953
954 itnim_data = (struct bfad_itnim_data_s *) rport->dd_data;
955 bfa = itnim_data->itnim->bfa_itnim->bfa;
956
957 if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) {
958
959
960
961
962 if (sdev->lun == 0) {
963 sdev->sdev_bflags |= BLIST_NOREPORTLUN |
964 BLIST_SPARSELUN;
965 goto done;
966 }
967
968
969
970
971
972 if (bfad_im_check_if_make_lun_visible(sdev, rport) !=
973 BFA_STATUS_OK)
974 return -ENXIO;
975 }
976done:
977 sdev->hostdata = rport->dd_data;
978
979 return 0;
980}
981
982u32
983bfad_im_supported_speeds(struct bfa_s *bfa)
984{
985 struct bfa_ioc_attr_s *ioc_attr;
986 u32 supported_speed = 0;
987
988 ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL);
989 if (!ioc_attr)
990 return 0;
991
992 bfa_ioc_get_attr(&bfa->ioc, ioc_attr);
993 if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_16GBPS)
994 supported_speed |= FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT |
995 FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT;
996 else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) {
997 if (ioc_attr->adapter_attr.is_mezz) {
998 supported_speed |= FC_PORTSPEED_8GBIT |
999 FC_PORTSPEED_4GBIT |
1000 FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT;
1001 } else {
1002 supported_speed |= FC_PORTSPEED_8GBIT |
1003 FC_PORTSPEED_4GBIT |
1004 FC_PORTSPEED_2GBIT;
1005 }
1006 } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) {
1007 supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT |
1008 FC_PORTSPEED_1GBIT;
1009 } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) {
1010 supported_speed |= FC_PORTSPEED_10GBIT;
1011 }
1012 kfree(ioc_attr);
1013 return supported_speed;
1014}
1015
1016void
1017bfad_fc_host_init(struct bfad_im_port_s *im_port)
1018{
1019 struct Scsi_Host *host = im_port->shost;
1020 struct bfad_s *bfad = im_port->bfad;
1021 struct bfad_port_s *port = im_port->port;
1022 char symname[BFA_SYMNAME_MAXLEN];
1023 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
1024
1025 fc_host_node_name(host) =
1026 cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port)));
1027 fc_host_port_name(host) =
1028 cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port)));
1029 fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa);
1030
1031 fc_host_supported_classes(host) = FC_COS_CLASS3;
1032
1033 memset(fc_host_supported_fc4s(host), 0,
1034 sizeof(fc_host_supported_fc4s(host)));
1035 if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM)
1036
1037 fc_host_supported_fc4s(host)[2] = 1;
1038
1039 fc_host_supported_fc4s(host)[7] = 1;
1040
1041 strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname,
1042 BFA_SYMNAME_MAXLEN);
1043 sprintf(fc_host_symbolic_name(host), "%s", symname);
1044
1045 fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa);
1046 fc_host_maxframe_size(host) = fcport->cfg.maxfrsize;
1047}
1048
1049static void
1050bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim)
1051{
1052 struct fc_rport_identifiers rport_ids;
1053 struct fc_rport *fc_rport;
1054 struct bfad_itnim_data_s *itnim_data;
1055
1056 rport_ids.node_name =
1057 cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim));
1058 rport_ids.port_name =
1059 cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim));
1060 rport_ids.port_id =
1061 bfa_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim));
1062 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1063
1064 itnim->fc_rport = fc_rport =
1065 fc_remote_port_add(im_port->shost, 0, &rport_ids);
1066
1067 if (!fc_rport)
1068 return;
1069
1070 fc_rport->maxframe_size =
1071 bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim);
1072 fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim);
1073
1074 itnim_data = fc_rport->dd_data;
1075 itnim_data->itnim = itnim;
1076
1077 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1078
1079 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1080 fc_remote_port_rolechg(fc_rport, rport_ids.roles);
1081
1082 if ((fc_rport->scsi_target_id != -1)
1083 && (fc_rport->scsi_target_id < MAX_FCP_TARGET))
1084 itnim->scsi_tgt_id = fc_rport->scsi_target_id;
1085
1086 itnim->channel = fc_rport->channel;
1087
1088 return;
1089}
1090
1091
1092
1093
1094
1095static void
1096bfad_im_itnim_work_handler(struct work_struct *work)
1097{
1098 struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s,
1099 itnim_work);
1100 struct bfad_im_s *im = itnim->im;
1101 struct bfad_s *bfad = im->bfad;
1102 struct bfad_im_port_s *im_port;
1103 unsigned long flags;
1104 struct fc_rport *fc_rport;
1105 wwn_t wwpn;
1106 u32 fcid;
1107 char wwpn_str[32], fcid_str[16];
1108
1109 spin_lock_irqsave(&bfad->bfad_lock, flags);
1110 im_port = itnim->im_port;
1111 bfa_trc(bfad, itnim->state);
1112 switch (itnim->state) {
1113 case ITNIM_STATE_ONLINE:
1114 if (!itnim->fc_rport) {
1115 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1116 bfad_im_fc_rport_add(im_port, itnim);
1117 spin_lock_irqsave(&bfad->bfad_lock, flags);
1118 wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim);
1119 fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim);
1120 wwn2str(wwpn_str, wwpn);
1121 fcid2str(fcid_str, fcid);
1122 list_add_tail(&itnim->list_entry,
1123 &im_port->itnim_mapped_list);
1124 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
1125 "ITNIM ONLINE Target: %d:0:%d "
1126 "FCID: %s WWPN: %s\n",
1127 im_port->shost->host_no,
1128 itnim->scsi_tgt_id,
1129 fcid_str, wwpn_str);
1130 } else {
1131 printk(KERN_WARNING
1132 "%s: itnim %llx is already in online state\n",
1133 __func__,
1134 bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim));
1135 }
1136
1137 break;
1138 case ITNIM_STATE_OFFLINE_PENDING:
1139 itnim->state = ITNIM_STATE_OFFLINE;
1140 if (itnim->fc_rport) {
1141 fc_rport = itnim->fc_rport;
1142 ((struct bfad_itnim_data_s *)
1143 fc_rport->dd_data)->itnim = NULL;
1144 itnim->fc_rport = NULL;
1145 if (!(im_port->port->flags & BFAD_PORT_DELETE)) {
1146 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1147 fc_rport->dev_loss_tmo =
1148 bfa_fcpim_path_tov_get(&bfad->bfa) + 1;
1149 fc_remote_port_delete(fc_rport);
1150 spin_lock_irqsave(&bfad->bfad_lock, flags);
1151 }
1152 wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim);
1153 fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim);
1154 wwn2str(wwpn_str, wwpn);
1155 fcid2str(fcid_str, fcid);
1156 list_del(&itnim->list_entry);
1157 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
1158 "ITNIM OFFLINE Target: %d:0:%d "
1159 "FCID: %s WWPN: %s\n",
1160 im_port->shost->host_no,
1161 itnim->scsi_tgt_id,
1162 fcid_str, wwpn_str);
1163 }
1164 break;
1165 case ITNIM_STATE_FREE:
1166 if (itnim->fc_rport) {
1167 fc_rport = itnim->fc_rport;
1168 ((struct bfad_itnim_data_s *)
1169 fc_rport->dd_data)->itnim = NULL;
1170 itnim->fc_rport = NULL;
1171 if (!(im_port->port->flags & BFAD_PORT_DELETE)) {
1172 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1173 fc_rport->dev_loss_tmo =
1174 bfa_fcpim_path_tov_get(&bfad->bfa) + 1;
1175 fc_remote_port_delete(fc_rport);
1176 spin_lock_irqsave(&bfad->bfad_lock, flags);
1177 }
1178 list_del(&itnim->list_entry);
1179 }
1180
1181 kfree(itnim);
1182 break;
1183 default:
1184 WARN_ON(1);
1185 break;
1186 }
1187
1188 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1189}
1190
1191
1192
1193
1194static int
1195bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
1196{
1197 struct bfad_im_port_s *im_port =
1198 (struct bfad_im_port_s *) cmnd->device->host->hostdata[0];
1199 struct bfad_s *bfad = im_port->bfad;
1200 struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata;
1201 struct bfad_itnim_s *itnim;
1202 struct bfa_ioim_s *hal_io;
1203 unsigned long flags;
1204 int rc;
1205 int sg_cnt = 0;
1206 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
1207
1208 rc = fc_remote_port_chkready(rport);
1209 if (rc) {
1210 cmnd->result = rc;
1211 done(cmnd);
1212 return 0;
1213 }
1214
1215 if (bfad->bfad_flags & BFAD_EEH_BUSY) {
1216 if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE)
1217 cmnd->result = DID_NO_CONNECT << 16;
1218 else
1219 cmnd->result = DID_REQUEUE << 16;
1220 done(cmnd);
1221 return 0;
1222 }
1223
1224 sg_cnt = scsi_dma_map(cmnd);
1225 if (sg_cnt < 0)
1226 return SCSI_MLQUEUE_HOST_BUSY;
1227
1228 cmnd->scsi_done = done;
1229
1230 spin_lock_irqsave(&bfad->bfad_lock, flags);
1231 if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) {
1232 printk(KERN_WARNING
1233 "bfad%d, queuecommand %p %x failed, BFA stopped\n",
1234 bfad->inst_no, cmnd, cmnd->cmnd[0]);
1235 cmnd->result = ScsiResult(DID_NO_CONNECT, 0);
1236 goto out_fail_cmd;
1237 }
1238
1239
1240 itnim = itnim_data->itnim;
1241 if (!itnim) {
1242 cmnd->result = ScsiResult(DID_IMM_RETRY, 0);
1243 goto out_fail_cmd;
1244 }
1245
1246 hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd,
1247 itnim->bfa_itnim, sg_cnt);
1248 if (!hal_io) {
1249 printk(KERN_WARNING "hal_io failure\n");
1250 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1251 scsi_dma_unmap(cmnd);
1252 return SCSI_MLQUEUE_HOST_BUSY;
1253 }
1254
1255 cmnd->host_scribble = (char *)hal_io;
1256 bfa_ioim_start(hal_io);
1257 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1258
1259 return 0;
1260
1261out_fail_cmd:
1262 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1263 scsi_dma_unmap(cmnd);
1264 if (done)
1265 done(cmnd);
1266
1267 return 0;
1268}
1269
1270static DEF_SCSI_QCMD(bfad_im_queuecommand)
1271
1272void
1273bfad_rport_online_wait(struct bfad_s *bfad)
1274{
1275 int i;
1276 int rport_delay = 10;
1277
1278 for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE)
1279 && i < bfa_linkup_delay; i++) {
1280 set_current_state(TASK_UNINTERRUPTIBLE);
1281 schedule_timeout(HZ);
1282 }
1283
1284 if (bfad->bfad_flags & BFAD_PORT_ONLINE) {
1285 rport_delay = rport_delay < bfa_linkup_delay ?
1286 rport_delay : bfa_linkup_delay;
1287 for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE)
1288 && i < rport_delay; i++) {
1289 set_current_state(TASK_UNINTERRUPTIBLE);
1290 schedule_timeout(HZ);
1291 }
1292
1293 if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) {
1294 set_current_state(TASK_UNINTERRUPTIBLE);
1295 schedule_timeout(rport_delay * HZ);
1296 }
1297 }
1298}
1299
1300int
1301bfad_get_linkup_delay(struct bfad_s *bfad)
1302{
1303 u8 nwwns = 0;
1304 wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX];
1305 int linkup_delay;
1306
1307
1308
1309
1310
1311
1312
1313
1314 bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns);
1315
1316 if (nwwns > 0)
1317
1318 linkup_delay = 30;
1319 else
1320
1321 linkup_delay = 0;
1322
1323 return linkup_delay;
1324}
1325
