1
2
3
4
5
6
7#include "qla_def.h"
8#include "qla_gbl.h"
9#include "qla_target.h"
10
11#include <linux/moduleparam.h>
12#include <linux/vmalloc.h>
13#include <linux/slab.h>
14#include <linux/list.h>
15
16#include <scsi/scsi_tcq.h>
17#include <scsi/scsicam.h>
18#include <linux/delay.h>
19
20void
21qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
22{
23 if (vha->vp_idx && vha->timer_active) {
24 del_timer_sync(&vha->timer);
25 vha->timer_active = 0;
26 }
27}
28
29static uint32_t
30qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
31{
32 uint32_t vp_id;
33 struct qla_hw_data *ha = vha->hw;
34 unsigned long flags;
35
36
37 mutex_lock(&ha->vport_lock);
38 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
39 if (vp_id > ha->max_npiv_vports) {
40 ql_dbg(ql_dbg_vport, vha, 0xa000,
41 "vp_id %d is bigger than max-supported %d.\n",
42 vp_id, ha->max_npiv_vports);
43 mutex_unlock(&ha->vport_lock);
44 return vp_id;
45 }
46
47 set_bit(vp_id, ha->vp_idx_map);
48 ha->num_vhosts++;
49 vha->vp_idx = vp_id;
50
51 spin_lock_irqsave(&ha->vport_slock, flags);
52 list_add_tail(&vha->list, &ha->vp_list);
53
54 qlt_update_vp_map(vha, SET_VP_IDX);
55
56 spin_unlock_irqrestore(&ha->vport_slock, flags);
57
58 mutex_unlock(&ha->vport_lock);
59 return vp_id;
60}
61
62void
63qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
64{
65 uint16_t vp_id;
66 struct qla_hw_data *ha = vha->hw;
67 unsigned long flags = 0;
68
69 mutex_lock(&ha->vport_lock);
70
71
72
73
74
75
76
77 spin_lock_irqsave(&ha->vport_slock, flags);
78 while (atomic_read(&vha->vref_count)) {
79 spin_unlock_irqrestore(&ha->vport_slock, flags);
80
81 msleep(500);
82
83 spin_lock_irqsave(&ha->vport_slock, flags);
84 }
85 list_del(&vha->list);
86 qlt_update_vp_map(vha, RESET_VP_IDX);
87 spin_unlock_irqrestore(&ha->vport_slock, flags);
88
89 vp_id = vha->vp_idx;
90 ha->num_vhosts--;
91 clear_bit(vp_id, ha->vp_idx_map);
92
93 mutex_unlock(&ha->vport_lock);
94}
95
96static scsi_qla_host_t *
97qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
98{
99 scsi_qla_host_t *vha;
100 struct scsi_qla_host *tvha;
101 unsigned long flags;
102
103 spin_lock_irqsave(&ha->vport_slock, flags);
104
105 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
106 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
107 spin_unlock_irqrestore(&ha->vport_slock, flags);
108 return vha;
109 }
110 }
111 spin_unlock_irqrestore(&ha->vport_slock, flags);
112 return NULL;
113}
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128static void
129qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
130{
131
132
133
134
135
136
137 fc_port_t *fcport;
138
139 list_for_each_entry(fcport, &vha->vp_fcports, list) {
140 ql_dbg(ql_dbg_vport, vha, 0xa001,
141 "Marking port dead, loop_id=0x%04x : %x.\n",
142 fcport->loop_id, fcport->vha->vp_idx);
143
144 qla2x00_mark_device_lost(vha, fcport, 0, 0);
145 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
146 }
147}
148
149int
150qla24xx_disable_vp(scsi_qla_host_t *vha)
151{
152 unsigned long flags;
153 int ret;
154
155 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
156 atomic_set(&vha->loop_state, LOOP_DOWN);
157 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
158
159
160 spin_lock_irqsave(&vha->hw->vport_slock, flags);
161 qlt_update_vp_map(vha, RESET_AL_PA);
162 spin_unlock_irqrestore(&vha->hw->vport_slock, flags);
163
164 qla2x00_mark_vp_devices_dead(vha);
165 atomic_set(&vha->vp_state, VP_FAILED);
166 vha->flags.management_server_logged_in = 0;
167 if (ret == QLA_SUCCESS) {
168 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
169 } else {
170 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
171 return -1;
172 }
173 return 0;
174}
175
176int
177qla24xx_enable_vp(scsi_qla_host_t *vha)
178{
179 int ret;
180 struct qla_hw_data *ha = vha->hw;
181 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
182
183
184 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
185 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
186 !(ha->current_topology & ISP_CFG_F)) {
187 vha->vp_err_state = VP_ERR_PORTDWN;
188 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
189 goto enable_failed;
190 }
191
192
193 mutex_lock(&ha->vport_lock);
194 ret = qla24xx_modify_vp_config(vha);
195 mutex_unlock(&ha->vport_lock);
196
197 if (ret != QLA_SUCCESS) {
198 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
199 goto enable_failed;
200 }
201
202 ql_dbg(ql_dbg_taskm, vha, 0x801a,
203 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
204 return 0;
205
206enable_failed:
207 ql_dbg(ql_dbg_taskm, vha, 0x801b,
208 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
209 return 1;
210}
211
212static void
213qla24xx_configure_vp(scsi_qla_host_t *vha)
214{
215 struct fc_vport *fc_vport;
216 int ret;
217
218 fc_vport = vha->fc_vport;
219
220 ql_dbg(ql_dbg_vport, vha, 0xa002,
221 "%s: change request #3.\n", __func__);
222 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
223 if (ret != QLA_SUCCESS) {
224 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
225 "receiving of RSCN requests: 0x%x.\n", ret);
226 return;
227 } else {
228
229 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
230 }
231
232 vha->flags.online = 1;
233 if (qla24xx_configure_vhba(vha))
234 return;
235
236 atomic_set(&vha->vp_state, VP_ACTIVE);
237 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
238}
239
240void
241qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
242{
243 scsi_qla_host_t *vha;
244 struct qla_hw_data *ha = rsp->hw;
245 int i = 0;
246 unsigned long flags;
247
248 spin_lock_irqsave(&ha->vport_slock, flags);
249 list_for_each_entry(vha, &ha->vp_list, list) {
250 if (vha->vp_idx) {
251 atomic_inc(&vha->vref_count);
252 spin_unlock_irqrestore(&ha->vport_slock, flags);
253
254 switch (mb[0]) {
255 case MBA_LIP_OCCURRED:
256 case MBA_LOOP_UP:
257 case MBA_LOOP_DOWN:
258 case MBA_LIP_RESET:
259 case MBA_POINT_TO_POINT:
260 case MBA_CHG_IN_CONNECTION:
261 case MBA_PORT_UPDATE:
262 case MBA_RSCN_UPDATE:
263 ql_dbg(ql_dbg_async, vha, 0x5024,
264 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
265 i, *mb, vha);
266 qla2x00_async_event(vha, rsp, mb);
267 break;
268 }
269
270 spin_lock_irqsave(&ha->vport_slock, flags);
271 atomic_dec(&vha->vref_count);
272 }
273 i++;
274 }
275 spin_unlock_irqrestore(&ha->vport_slock, flags);
276}
277
278int
279qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
280{
281
282
283
284
285 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
286 atomic_set(&vha->loop_state, LOOP_DOWN);
287 qla2x00_mark_all_devices_lost(vha, 0);
288 } else {
289 if (!atomic_read(&vha->loop_down_timer))
290 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
291 }
292
293
294
295
296
297
298 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
299 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
300
301 ql_dbg(ql_dbg_taskm, vha, 0x801d,
302 "Scheduling enable of Vport %d.\n", vha->vp_idx);
303 return qla24xx_enable_vp(vha);
304}
305
306static int
307qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
308{
309 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
310 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
311
312 qla2x00_do_work(vha);
313
314 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
315
316 ql_dbg(ql_dbg_dpc, vha, 0x4014,
317 "Configure VP scheduled.\n");
318 qla24xx_configure_vp(vha);
319 ql_dbg(ql_dbg_dpc, vha, 0x4015,
320 "Configure VP end.\n");
321 return 0;
322 }
323
324 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
325 ql_dbg(ql_dbg_dpc, vha, 0x4016,
326 "FCPort update scheduled.\n");
327 qla2x00_update_fcports(vha);
328 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
329 ql_dbg(ql_dbg_dpc, vha, 0x4017,
330 "FCPort update end.\n");
331 }
332
333 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
334 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
335 atomic_read(&vha->loop_state) != LOOP_DOWN) {
336
337 ql_dbg(ql_dbg_dpc, vha, 0x4018,
338 "Relogin needed scheduled.\n");
339 qla2x00_relogin(vha);
340 ql_dbg(ql_dbg_dpc, vha, 0x4019,
341 "Relogin needed end.\n");
342 }
343
344 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
345 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
346 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
347 }
348
349 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
350 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
351 ql_dbg(ql_dbg_dpc, vha, 0x401a,
352 "Loop resync scheduled.\n");
353 qla2x00_loop_resync(vha);
354 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
355 ql_dbg(ql_dbg_dpc, vha, 0x401b,
356 "Loop resync end.\n");
357 }
358 }
359
360 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
361 "Exiting %s.\n", __func__);
362 return 0;
363}
364
365void
366qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
367{
368 int ret;
369 struct qla_hw_data *ha = vha->hw;
370 scsi_qla_host_t *vp;
371 unsigned long flags = 0;
372
373 if (vha->vp_idx)
374 return;
375 if (list_empty(&ha->vp_list))
376 return;
377
378 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
379
380 if (!(ha->current_topology & ISP_CFG_F))
381 return;
382
383 spin_lock_irqsave(&ha->vport_slock, flags);
384 list_for_each_entry(vp, &ha->vp_list, list) {
385 if (vp->vp_idx) {
386 atomic_inc(&vp->vref_count);
387 spin_unlock_irqrestore(&ha->vport_slock, flags);
388
389 ret = qla2x00_do_dpc_vp(vp);
390
391 spin_lock_irqsave(&ha->vport_slock, flags);
392 atomic_dec(&vp->vref_count);
393 }
394 }
395 spin_unlock_irqrestore(&ha->vport_slock, flags);
396}
397
398int
399qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
400{
401 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
402 struct qla_hw_data *ha = base_vha->hw;
403 scsi_qla_host_t *vha;
404 uint8_t port_name[WWN_SIZE];
405
406 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
407 return VPCERR_UNSUPPORTED;
408
409
410 if (!ha->flags.npiv_supported)
411 return VPCERR_UNSUPPORTED;
412
413
414 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
415 return VPCERR_NO_FABRIC_SUPP;
416
417
418 u64_to_wwn(fc_vport->port_name, port_name);
419 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
420 return VPCERR_BAD_WWN;
421 vha = qla24xx_find_vhost_by_name(ha, port_name);
422 if (vha)
423 return VPCERR_BAD_WWN;
424
425
426 if (ha->num_vhosts > ha->max_npiv_vports) {
427 ql_dbg(ql_dbg_vport, vha, 0xa004,
428 "num_vhosts %ud is bigger "
429 "than max_npiv_vports %ud.\n",
430 ha->num_vhosts, ha->max_npiv_vports);
431 return VPCERR_UNSUPPORTED;
432 }
433 return 0;
434}
435
436scsi_qla_host_t *
437qla24xx_create_vhost(struct fc_vport *fc_vport)
438{
439 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
440 struct qla_hw_data *ha = base_vha->hw;
441 scsi_qla_host_t *vha;
442 struct scsi_host_template *sht = &qla2xxx_driver_template;
443 struct Scsi_Host *host;
444
445 vha = qla2x00_create_host(sht, ha);
446 if (!vha) {
447 ql_log(ql_log_warn, vha, 0xa005,
448 "scsi_host_alloc() failed for vport.\n");
449 return(NULL);
450 }
451
452 host = vha->host;
453 fc_vport->dd_data = vha;
454
455 u64_to_wwn(fc_vport->node_name, vha->node_name);
456 u64_to_wwn(fc_vport->port_name, vha->port_name);
457
458 vha->fc_vport = fc_vport;
459 vha->device_flags = 0;
460 vha->vp_idx = qla24xx_allocate_vp_id(vha);
461 if (vha->vp_idx > ha->max_npiv_vports) {
462 ql_dbg(ql_dbg_vport, vha, 0xa006,
463 "Couldn't allocate vp_id.\n");
464 goto create_vhost_failed;
465 }
466 vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
467
468 vha->dpc_flags = 0L;
469
470
471
472
473
474 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
475 atomic_set(&vha->loop_state, LOOP_DOWN);
476 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
477
478 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
479
480 vha->req = base_vha->req;
481 host->can_queue = base_vha->req->length + 128;
482 host->cmd_per_lun = 3;
483 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
484 host->max_cmd_len = 32;
485 else
486 host->max_cmd_len = MAX_CMDSZ;
487 host->max_channel = MAX_BUSES - 1;
488 host->max_lun = ql2xmaxlun;
489 host->unique_id = host->host_no;
490 host->max_id = ha->max_fibre_devices;
491 host->transportt = qla2xxx_transport_vport_template;
492
493 ql_dbg(ql_dbg_vport, vha, 0xa007,
494 "Detect vport hba %ld at address = %p.\n",
495 vha->host_no, vha);
496
497 vha->flags.init_done = 1;
498
499 mutex_lock(&ha->vport_lock);
500 set_bit(vha->vp_idx, ha->vp_idx_map);
501 ha->cur_vport_count++;
502 mutex_unlock(&ha->vport_lock);
503
504 return vha;
505
506create_vhost_failed:
507 return NULL;
508}
509
510static void
511qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
512{
513 struct qla_hw_data *ha = vha->hw;
514 uint16_t que_id = req->id;
515
516 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
517 sizeof(request_t), req->ring, req->dma);
518 req->ring = NULL;
519 req->dma = 0;
520 if (que_id) {
521 ha->req_q_map[que_id] = NULL;
522 mutex_lock(&ha->vport_lock);
523 clear_bit(que_id, ha->req_qid_map);
524 mutex_unlock(&ha->vport_lock);
525 }
526 kfree(req->outstanding_cmds);
527 kfree(req);
528 req = NULL;
529}
530
531static void
532qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
533{
534 struct qla_hw_data *ha = vha->hw;
535 uint16_t que_id = rsp->id;
536
537 if (rsp->msix && rsp->msix->have_irq) {
538 free_irq(rsp->msix->vector, rsp);
539 rsp->msix->have_irq = 0;
540 rsp->msix->rsp = NULL;
541 }
542 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
543 sizeof(response_t), rsp->ring, rsp->dma);
544 rsp->ring = NULL;
545 rsp->dma = 0;
546 if (que_id) {
547 ha->rsp_q_map[que_id] = NULL;
548 mutex_lock(&ha->vport_lock);
549 clear_bit(que_id, ha->rsp_qid_map);
550 mutex_unlock(&ha->vport_lock);
551 }
552 kfree(rsp);
553 rsp = NULL;
554}
555
556int
557qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
558{
559 int ret = -1;
560
561 if (req) {
562 req->options |= BIT_0;
563 ret = qla25xx_init_req_que(vha, req);
564 }
565 if (ret == QLA_SUCCESS)
566 qla25xx_free_req_que(vha, req);
567
568 return ret;
569}
570
571static int
572qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
573{
574 int ret = -1;
575
576 if (rsp) {
577 rsp->options |= BIT_0;
578 ret = qla25xx_init_rsp_que(vha, rsp);
579 }
580 if (ret == QLA_SUCCESS)
581 qla25xx_free_rsp_que(vha, rsp);
582
583 return ret;
584}
585
586
587int
588qla25xx_delete_queues(struct scsi_qla_host *vha)
589{
590 int cnt, ret = 0;
591 struct req_que *req = NULL;
592 struct rsp_que *rsp = NULL;
593 struct qla_hw_data *ha = vha->hw;
594
595
596 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
597 req = ha->req_q_map[cnt];
598 if (req) {
599 ret = qla25xx_delete_req_que(vha, req);
600 if (ret != QLA_SUCCESS) {
601 ql_log(ql_log_warn, vha, 0x00ea,
602 "Couldn't delete req que %d.\n",
603 req->id);
604 return ret;
605 }
606 }
607 }
608
609
610 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
611 rsp = ha->rsp_q_map[cnt];
612 if (rsp) {
613 ret = qla25xx_delete_rsp_que(vha, rsp);
614 if (ret != QLA_SUCCESS) {
615 ql_log(ql_log_warn, vha, 0x00eb,
616 "Couldn't delete rsp que %d.\n",
617 rsp->id);
618 return ret;
619 }
620 }
621 }
622 return ret;
623}
624
625int
626qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
627 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
628{
629 int ret = 0;
630 struct req_que *req = NULL;
631 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
632 uint16_t que_id = 0;
633 device_reg_t __iomem *reg;
634 uint32_t cnt;
635
636 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
637 if (req == NULL) {
638 ql_log(ql_log_fatal, base_vha, 0x00d9,
639 "Failed to allocate memory for request queue.\n");
640 goto failed;
641 }
642
643 req->length = REQUEST_ENTRY_CNT_24XX;
644 req->ring = dma_alloc_coherent(&ha->pdev->dev,
645 (req->length + 1) * sizeof(request_t),
646 &req->dma, GFP_KERNEL);
647 if (req->ring == NULL) {
648 ql_log(ql_log_fatal, base_vha, 0x00da,
649 "Failed to allocate memory for request_ring.\n");
650 goto que_failed;
651 }
652
653 ret = qla2x00_alloc_outstanding_cmds(ha, req);
654 if (ret != QLA_SUCCESS)
655 goto que_failed;
656
657 mutex_lock(&ha->vport_lock);
658 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
659 if (que_id >= ha->max_req_queues) {
660 mutex_unlock(&ha->vport_lock);
661 ql_log(ql_log_warn, base_vha, 0x00db,
662 "No resources to create additional request queue.\n");
663 goto que_failed;
664 }
665 set_bit(que_id, ha->req_qid_map);
666 ha->req_q_map[que_id] = req;
667 req->rid = rid;
668 req->vp_idx = vp_idx;
669 req->qos = qos;
670
671 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
672 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
673 que_id, req->rid, req->vp_idx, req->qos);
674 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
675 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
676 que_id, req->rid, req->vp_idx, req->qos);
677 if (rsp_que < 0)
678 req->rsp = NULL;
679 else
680 req->rsp = ha->rsp_q_map[rsp_que];
681
682 if (MSB(req->rid))
683 options |= BIT_4;
684
685 if (LSB(req->rid))
686 options |= BIT_5;
687 req->options = options;
688
689 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
690 "options=0x%x.\n", req->options);
691 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
692 "options=0x%x.\n", req->options);
693 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
694 req->outstanding_cmds[cnt] = NULL;
695 req->current_outstanding_cmd = 1;
696
697 req->ring_ptr = req->ring;
698 req->ring_index = 0;
699 req->cnt = req->length;
700 req->id = que_id;
701 reg = ISP_QUE_REG(ha, que_id);
702 req->req_q_in = ®->isp25mq.req_q_in;
703 req->req_q_out = ®->isp25mq.req_q_out;
704 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
705 mutex_unlock(&ha->vport_lock);
706 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
707 "ring_ptr=%p ring_index=%d, "
708 "cnt=%d id=%d max_q_depth=%d.\n",
709 req->ring_ptr, req->ring_index,
710 req->cnt, req->id, req->max_q_depth);
711 ql_dbg(ql_dbg_init, base_vha, 0x00de,
712 "ring_ptr=%p ring_index=%d, "
713 "cnt=%d id=%d max_q_depth=%d.\n",
714 req->ring_ptr, req->ring_index, req->cnt,
715 req->id, req->max_q_depth);
716
717 ret = qla25xx_init_req_que(base_vha, req);
718 if (ret != QLA_SUCCESS) {
719 ql_log(ql_log_fatal, base_vha, 0x00df,
720 "%s failed.\n", __func__);
721 mutex_lock(&ha->vport_lock);
722 clear_bit(que_id, ha->req_qid_map);
723 mutex_unlock(&ha->vport_lock);
724 goto que_failed;
725 }
726
727 return req->id;
728
729que_failed:
730 qla25xx_free_req_que(base_vha, req);
731failed:
732 return 0;
733}
734
735static void qla_do_work(struct work_struct *work)
736{
737 unsigned long flags;
738 struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
739 struct scsi_qla_host *vha;
740 struct qla_hw_data *ha = rsp->hw;
741
742 spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
743 vha = pci_get_drvdata(ha->pdev);
744 qla24xx_process_response_queue(vha, rsp);
745 spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags);
746}
747
748
749int
750qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
751 uint8_t vp_idx, uint16_t rid, int req)
752{
753 int ret = 0;
754 struct rsp_que *rsp = NULL;
755 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
756 uint16_t que_id = 0;
757 device_reg_t __iomem *reg;
758
759 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
760 if (rsp == NULL) {
761 ql_log(ql_log_warn, base_vha, 0x0066,
762 "Failed to allocate memory for response queue.\n");
763 goto failed;
764 }
765
766 rsp->length = RESPONSE_ENTRY_CNT_MQ;
767 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
768 (rsp->length + 1) * sizeof(response_t),
769 &rsp->dma, GFP_KERNEL);
770 if (rsp->ring == NULL) {
771 ql_log(ql_log_warn, base_vha, 0x00e1,
772 "Failed to allocate memory for response ring.\n");
773 goto que_failed;
774 }
775
776 mutex_lock(&ha->vport_lock);
777 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
778 if (que_id >= ha->max_rsp_queues) {
779 mutex_unlock(&ha->vport_lock);
780 ql_log(ql_log_warn, base_vha, 0x00e2,
781 "No resources to create additional request queue.\n");
782 goto que_failed;
783 }
784 set_bit(que_id, ha->rsp_qid_map);
785
786 if (ha->flags.msix_enabled)
787 rsp->msix = &ha->msix_entries[que_id + 1];
788 else
789 ql_log(ql_log_warn, base_vha, 0x00e3,
790 "MSIX not enalbled.\n");
791
792 ha->rsp_q_map[que_id] = rsp;
793 rsp->rid = rid;
794 rsp->vp_idx = vp_idx;
795 rsp->hw = ha;
796 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
797 "queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
798 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
799
800 if (MSB(rsp->rid))
801 options |= BIT_4;
802
803 if (LSB(rsp->rid))
804 options |= BIT_5;
805
806 if (!IS_MSIX_NACK_CAPABLE(ha))
807 options |= BIT_6;
808
809 rsp->options = options;
810 rsp->id = que_id;
811 reg = ISP_QUE_REG(ha, que_id);
812 rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
813 rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
814 mutex_unlock(&ha->vport_lock);
815 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
816 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
817 rsp->options, rsp->id, rsp->rsp_q_in,
818 rsp->rsp_q_out);
819 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
820 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
821 rsp->options, rsp->id, rsp->rsp_q_in,
822 rsp->rsp_q_out);
823
824 ret = qla25xx_request_irq(rsp);
825 if (ret)
826 goto que_failed;
827
828 ret = qla25xx_init_rsp_que(base_vha, rsp);
829 if (ret != QLA_SUCCESS) {
830 ql_log(ql_log_fatal, base_vha, 0x00e7,
831 "%s failed.\n", __func__);
832 mutex_lock(&ha->vport_lock);
833 clear_bit(que_id, ha->rsp_qid_map);
834 mutex_unlock(&ha->vport_lock);
835 goto que_failed;
836 }
837 if (req >= 0)
838 rsp->req = ha->req_q_map[req];
839 else
840 rsp->req = NULL;
841
842 qla2x00_init_response_q_entries(rsp);
843 if (rsp->hw->wq)
844 INIT_WORK(&rsp->q_work, qla_do_work);
845 return rsp->id;
846
847que_failed:
848 qla25xx_free_rsp_que(base_vha, rsp);
849failed:
850 return 0;
851}
852
