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 struct qla_hw_data *ha = vha->hw;
310 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
311
312 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
313 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
314
315 qla2x00_do_work(vha);
316
317
318 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
319 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
320
321 ql_dbg(ql_dbg_dpc, vha, 0x4014,
322 "Configure VP scheduled.\n");
323 qla24xx_configure_vp(vha);
324 ql_dbg(ql_dbg_dpc, vha, 0x4015,
325 "Configure VP end.\n");
326 return 0;
327 }
328 }
329
330 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
331 ql_dbg(ql_dbg_dpc, vha, 0x4016,
332 "FCPort update scheduled.\n");
333 qla2x00_update_fcports(vha);
334 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
335 ql_dbg(ql_dbg_dpc, vha, 0x4017,
336 "FCPort update end.\n");
337 }
338
339 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
340 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
341 atomic_read(&vha->loop_state) != LOOP_DOWN) {
342
343 ql_dbg(ql_dbg_dpc, vha, 0x4018,
344 "Relogin needed scheduled.\n");
345 qla2x00_relogin(vha);
346 ql_dbg(ql_dbg_dpc, vha, 0x4019,
347 "Relogin needed end.\n");
348 }
349
350 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
351 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
352 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
353 }
354
355 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
356 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
357 ql_dbg(ql_dbg_dpc, vha, 0x401a,
358 "Loop resync scheduled.\n");
359 qla2x00_loop_resync(vha);
360 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
361 ql_dbg(ql_dbg_dpc, vha, 0x401b,
362 "Loop resync end.\n");
363 }
364 }
365
366 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
367 "Exiting %s.\n", __func__);
368 return 0;
369}
370
371void
372qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
373{
374 int ret;
375 struct qla_hw_data *ha = vha->hw;
376 scsi_qla_host_t *vp;
377 unsigned long flags = 0;
378
379 if (vha->vp_idx)
380 return;
381 if (list_empty(&ha->vp_list))
382 return;
383
384 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
385
386 if (!(ha->current_topology & ISP_CFG_F))
387 return;
388
389 spin_lock_irqsave(&ha->vport_slock, flags);
390 list_for_each_entry(vp, &ha->vp_list, list) {
391 if (vp->vp_idx) {
392 atomic_inc(&vp->vref_count);
393 spin_unlock_irqrestore(&ha->vport_slock, flags);
394
395 ret = qla2x00_do_dpc_vp(vp);
396
397 spin_lock_irqsave(&ha->vport_slock, flags);
398 atomic_dec(&vp->vref_count);
399 }
400 }
401 spin_unlock_irqrestore(&ha->vport_slock, flags);
402}
403
404int
405qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
406{
407 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
408 struct qla_hw_data *ha = base_vha->hw;
409 scsi_qla_host_t *vha;
410 uint8_t port_name[WWN_SIZE];
411
412 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
413 return VPCERR_UNSUPPORTED;
414
415
416 if (!ha->flags.npiv_supported)
417 return VPCERR_UNSUPPORTED;
418
419
420 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
421 return VPCERR_NO_FABRIC_SUPP;
422
423
424 u64_to_wwn(fc_vport->port_name, port_name);
425 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
426 return VPCERR_BAD_WWN;
427 vha = qla24xx_find_vhost_by_name(ha, port_name);
428 if (vha)
429 return VPCERR_BAD_WWN;
430
431
432 if (ha->num_vhosts > ha->max_npiv_vports) {
433 ql_dbg(ql_dbg_vport, vha, 0xa004,
434 "num_vhosts %ud is bigger "
435 "than max_npiv_vports %ud.\n",
436 ha->num_vhosts, ha->max_npiv_vports);
437 return VPCERR_UNSUPPORTED;
438 }
439 return 0;
440}
441
442scsi_qla_host_t *
443qla24xx_create_vhost(struct fc_vport *fc_vport)
444{
445 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
446 struct qla_hw_data *ha = base_vha->hw;
447 scsi_qla_host_t *vha;
448 struct scsi_host_template *sht = &qla2xxx_driver_template;
449 struct Scsi_Host *host;
450
451 vha = qla2x00_create_host(sht, ha);
452 if (!vha) {
453 ql_log(ql_log_warn, vha, 0xa005,
454 "scsi_host_alloc() failed for vport.\n");
455 return(NULL);
456 }
457
458 host = vha->host;
459 fc_vport->dd_data = vha;
460
461 u64_to_wwn(fc_vport->node_name, vha->node_name);
462 u64_to_wwn(fc_vport->port_name, vha->port_name);
463
464 vha->fc_vport = fc_vport;
465 vha->device_flags = 0;
466 vha->vp_idx = qla24xx_allocate_vp_id(vha);
467 if (vha->vp_idx > ha->max_npiv_vports) {
468 ql_dbg(ql_dbg_vport, vha, 0xa006,
469 "Couldn't allocate vp_id.\n");
470 goto create_vhost_failed;
471 }
472 vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
473
474 vha->dpc_flags = 0L;
475
476
477
478
479
480 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
481 atomic_set(&vha->loop_state, LOOP_DOWN);
482 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
483
484 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
485
486 vha->req = base_vha->req;
487 host->can_queue = base_vha->req->length + 128;
488 host->cmd_per_lun = 3;
489 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
490 host->max_cmd_len = 32;
491 else
492 host->max_cmd_len = MAX_CMDSZ;
493 host->max_channel = MAX_BUSES - 1;
494 host->max_lun = ql2xmaxlun;
495 host->unique_id = host->host_no;
496 host->max_id = ha->max_fibre_devices;
497 host->transportt = qla2xxx_transport_vport_template;
498
499 ql_dbg(ql_dbg_vport, vha, 0xa007,
500 "Detect vport hba %ld at address = %p.\n",
501 vha->host_no, vha);
502
503 vha->flags.init_done = 1;
504
505 mutex_lock(&ha->vport_lock);
506 set_bit(vha->vp_idx, ha->vp_idx_map);
507 ha->cur_vport_count++;
508 mutex_unlock(&ha->vport_lock);
509
510 return vha;
511
512create_vhost_failed:
513 return NULL;
514}
515
516static void
517qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
518{
519 struct qla_hw_data *ha = vha->hw;
520 uint16_t que_id = req->id;
521
522 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
523 sizeof(request_t), req->ring, req->dma);
524 req->ring = NULL;
525 req->dma = 0;
526 if (que_id) {
527 ha->req_q_map[que_id] = NULL;
528 mutex_lock(&ha->vport_lock);
529 clear_bit(que_id, ha->req_qid_map);
530 mutex_unlock(&ha->vport_lock);
531 }
532 kfree(req->outstanding_cmds);
533 kfree(req);
534 req = NULL;
535}
536
537static void
538qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
539{
540 struct qla_hw_data *ha = vha->hw;
541 uint16_t que_id = rsp->id;
542
543 if (rsp->msix && rsp->msix->have_irq) {
544 free_irq(rsp->msix->vector, rsp);
545 rsp->msix->have_irq = 0;
546 rsp->msix->rsp = NULL;
547 }
548 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
549 sizeof(response_t), rsp->ring, rsp->dma);
550 rsp->ring = NULL;
551 rsp->dma = 0;
552 if (que_id) {
553 ha->rsp_q_map[que_id] = NULL;
554 mutex_lock(&ha->vport_lock);
555 clear_bit(que_id, ha->rsp_qid_map);
556 mutex_unlock(&ha->vport_lock);
557 }
558 kfree(rsp);
559 rsp = NULL;
560}
561
562int
563qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
564{
565 int ret = -1;
566
567 if (req) {
568 req->options |= BIT_0;
569 ret = qla25xx_init_req_que(vha, req);
570 }
571 if (ret == QLA_SUCCESS)
572 qla25xx_free_req_que(vha, req);
573
574 return ret;
575}
576
577static int
578qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
579{
580 int ret = -1;
581
582 if (rsp) {
583 rsp->options |= BIT_0;
584 ret = qla25xx_init_rsp_que(vha, rsp);
585 }
586 if (ret == QLA_SUCCESS)
587 qla25xx_free_rsp_que(vha, rsp);
588
589 return ret;
590}
591
592
593int
594qla25xx_delete_queues(struct scsi_qla_host *vha)
595{
596 int cnt, ret = 0;
597 struct req_que *req = NULL;
598 struct rsp_que *rsp = NULL;
599 struct qla_hw_data *ha = vha->hw;
600
601
602 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
603 req = ha->req_q_map[cnt];
604 if (req) {
605 ret = qla25xx_delete_req_que(vha, req);
606 if (ret != QLA_SUCCESS) {
607 ql_log(ql_log_warn, vha, 0x00ea,
608 "Couldn't delete req que %d.\n",
609 req->id);
610 return ret;
611 }
612 }
613 }
614
615
616 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
617 rsp = ha->rsp_q_map[cnt];
618 if (rsp) {
619 ret = qla25xx_delete_rsp_que(vha, rsp);
620 if (ret != QLA_SUCCESS) {
621 ql_log(ql_log_warn, vha, 0x00eb,
622 "Couldn't delete rsp que %d.\n",
623 rsp->id);
624 return ret;
625 }
626 }
627 }
628 return ret;
629}
630
631int
632qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
633 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
634{
635 int ret = 0;
636 struct req_que *req = NULL;
637 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
638 uint16_t que_id = 0;
639 device_reg_t *reg;
640 uint32_t cnt;
641
642 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
643 if (req == NULL) {
644 ql_log(ql_log_fatal, base_vha, 0x00d9,
645 "Failed to allocate memory for request queue.\n");
646 goto failed;
647 }
648
649 req->length = REQUEST_ENTRY_CNT_24XX;
650 req->ring = dma_alloc_coherent(&ha->pdev->dev,
651 (req->length + 1) * sizeof(request_t),
652 &req->dma, GFP_KERNEL);
653 if (req->ring == NULL) {
654 ql_log(ql_log_fatal, base_vha, 0x00da,
655 "Failed to allocate memory for request_ring.\n");
656 goto que_failed;
657 }
658
659 ret = qla2x00_alloc_outstanding_cmds(ha, req);
660 if (ret != QLA_SUCCESS)
661 goto que_failed;
662
663 mutex_lock(&ha->vport_lock);
664 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
665 if (que_id >= ha->max_req_queues) {
666 mutex_unlock(&ha->vport_lock);
667 ql_log(ql_log_warn, base_vha, 0x00db,
668 "No resources to create additional request queue.\n");
669 goto que_failed;
670 }
671 set_bit(que_id, ha->req_qid_map);
672 ha->req_q_map[que_id] = req;
673 req->rid = rid;
674 req->vp_idx = vp_idx;
675 req->qos = qos;
676
677 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
678 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
679 que_id, req->rid, req->vp_idx, req->qos);
680 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
681 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
682 que_id, req->rid, req->vp_idx, req->qos);
683 if (rsp_que < 0)
684 req->rsp = NULL;
685 else
686 req->rsp = ha->rsp_q_map[rsp_que];
687
688 if (MSB(req->rid))
689 options |= BIT_4;
690
691 if (LSB(req->rid))
692 options |= BIT_5;
693 req->options = options;
694
695 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
696 "options=0x%x.\n", req->options);
697 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
698 "options=0x%x.\n", req->options);
699 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
700 req->outstanding_cmds[cnt] = NULL;
701 req->current_outstanding_cmd = 1;
702
703 req->ring_ptr = req->ring;
704 req->ring_index = 0;
705 req->cnt = req->length;
706 req->id = que_id;
707 reg = ISP_QUE_REG(ha, que_id);
708 req->req_q_in = ®->isp25mq.req_q_in;
709 req->req_q_out = ®->isp25mq.req_q_out;
710 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
711 req->out_ptr = (void *)(req->ring + req->length);
712 mutex_unlock(&ha->vport_lock);
713 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
714 "ring_ptr=%p ring_index=%d, "
715 "cnt=%d id=%d max_q_depth=%d.\n",
716 req->ring_ptr, req->ring_index,
717 req->cnt, req->id, req->max_q_depth);
718 ql_dbg(ql_dbg_init, base_vha, 0x00de,
719 "ring_ptr=%p ring_index=%d, "
720 "cnt=%d id=%d max_q_depth=%d.\n",
721 req->ring_ptr, req->ring_index, req->cnt,
722 req->id, req->max_q_depth);
723
724 ret = qla25xx_init_req_que(base_vha, req);
725 if (ret != QLA_SUCCESS) {
726 ql_log(ql_log_fatal, base_vha, 0x00df,
727 "%s failed.\n", __func__);
728 mutex_lock(&ha->vport_lock);
729 clear_bit(que_id, ha->req_qid_map);
730 mutex_unlock(&ha->vport_lock);
731 goto que_failed;
732 }
733
734 return req->id;
735
736que_failed:
737 qla25xx_free_req_que(base_vha, req);
738failed:
739 return 0;
740}
741
742static void qla_do_work(struct work_struct *work)
743{
744 unsigned long flags;
745 struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
746 struct scsi_qla_host *vha;
747 struct qla_hw_data *ha = rsp->hw;
748
749 spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
750 vha = pci_get_drvdata(ha->pdev);
751 qla24xx_process_response_queue(vha, rsp);
752 spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags);
753}
754
755
756int
757qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
758 uint8_t vp_idx, uint16_t rid, int req)
759{
760 int ret = 0;
761 struct rsp_que *rsp = NULL;
762 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
763 uint16_t que_id = 0;
764 device_reg_t *reg;
765
766 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
767 if (rsp == NULL) {
768 ql_log(ql_log_warn, base_vha, 0x0066,
769 "Failed to allocate memory for response queue.\n");
770 goto failed;
771 }
772
773 rsp->length = RESPONSE_ENTRY_CNT_MQ;
774 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
775 (rsp->length + 1) * sizeof(response_t),
776 &rsp->dma, GFP_KERNEL);
777 if (rsp->ring == NULL) {
778 ql_log(ql_log_warn, base_vha, 0x00e1,
779 "Failed to allocate memory for response ring.\n");
780 goto que_failed;
781 }
782
783 mutex_lock(&ha->vport_lock);
784 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
785 if (que_id >= ha->max_rsp_queues) {
786 mutex_unlock(&ha->vport_lock);
787 ql_log(ql_log_warn, base_vha, 0x00e2,
788 "No resources to create additional request queue.\n");
789 goto que_failed;
790 }
791 set_bit(que_id, ha->rsp_qid_map);
792
793 if (ha->flags.msix_enabled)
794 rsp->msix = &ha->msix_entries[que_id + 1];
795 else
796 ql_log(ql_log_warn, base_vha, 0x00e3,
797 "MSIX not enabled.\n");
798
799 ha->rsp_q_map[que_id] = rsp;
800 rsp->rid = rid;
801 rsp->vp_idx = vp_idx;
802 rsp->hw = ha;
803 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
804 "queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
805 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
806
807 if (MSB(rsp->rid))
808 options |= BIT_4;
809
810 if (LSB(rsp->rid))
811 options |= BIT_5;
812
813 if (!IS_MSIX_NACK_CAPABLE(ha))
814 options |= BIT_6;
815
816 rsp->options = options;
817 rsp->id = que_id;
818 reg = ISP_QUE_REG(ha, que_id);
819 rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
820 rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
821 rsp->in_ptr = (void *)(rsp->ring + rsp->length);
822 mutex_unlock(&ha->vport_lock);
823 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
824 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
825 rsp->options, rsp->id, rsp->rsp_q_in,
826 rsp->rsp_q_out);
827 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
828 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
829 rsp->options, rsp->id, rsp->rsp_q_in,
830 rsp->rsp_q_out);
831
832 ret = qla25xx_request_irq(rsp);
833 if (ret)
834 goto que_failed;
835
836 ret = qla25xx_init_rsp_que(base_vha, rsp);
837 if (ret != QLA_SUCCESS) {
838 ql_log(ql_log_fatal, base_vha, 0x00e7,
839 "%s failed.\n", __func__);
840 mutex_lock(&ha->vport_lock);
841 clear_bit(que_id, ha->rsp_qid_map);
842 mutex_unlock(&ha->vport_lock);
843 goto que_failed;
844 }
845 if (req >= 0)
846 rsp->req = ha->req_q_map[req];
847 else
848 rsp->req = NULL;
849
850 qla2x00_init_response_q_entries(rsp);
851 if (rsp->hw->wq)
852 INIT_WORK(&rsp->q_work, qla_do_work);
853 return rsp->id;
854
855que_failed:
856 qla25xx_free_rsp_que(base_vha, rsp);
857failed:
858 return 0;
859}
860
