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 wait_event_timeout(vha->vref_waitq, atomic_read(&vha->vref_count),
78 10*HZ);
79
80 spin_lock_irqsave(&ha->vport_slock, flags);
81 if (atomic_read(&vha->vref_count)) {
82 ql_dbg(ql_dbg_vport, vha, 0xfffa,
83 "vha->vref_count=%u timeout\n", vha->vref_count.counter);
84 vha->vref_count = (atomic_t)ATOMIC_INIT(0);
85 }
86 list_del(&vha->list);
87 qlt_update_vp_map(vha, RESET_VP_IDX);
88 spin_unlock_irqrestore(&ha->vport_slock, flags);
89
90 vp_id = vha->vp_idx;
91 ha->num_vhosts--;
92 clear_bit(vp_id, ha->vp_idx_map);
93
94 mutex_unlock(&ha->vport_lock);
95}
96
97static scsi_qla_host_t *
98qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
99{
100 scsi_qla_host_t *vha;
101 struct scsi_qla_host *tvha;
102 unsigned long flags;
103
104 spin_lock_irqsave(&ha->vport_slock, flags);
105
106 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
107 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
108 spin_unlock_irqrestore(&ha->vport_slock, flags);
109 return vha;
110 }
111 }
112 spin_unlock_irqrestore(&ha->vport_slock, flags);
113 return NULL;
114}
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129static void
130qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
131{
132
133
134
135
136
137
138 fc_port_t *fcport;
139
140 list_for_each_entry(fcport, &vha->vp_fcports, list) {
141 ql_dbg(ql_dbg_vport, vha, 0xa001,
142 "Marking port dead, loop_id=0x%04x : %x.\n",
143 fcport->loop_id, fcport->vha->vp_idx);
144
145 qla2x00_mark_device_lost(vha, fcport, 0, 0);
146 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
147 }
148}
149
150int
151qla24xx_disable_vp(scsi_qla_host_t *vha)
152{
153 unsigned long flags;
154 int ret;
155
156 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
157 atomic_set(&vha->loop_state, LOOP_DOWN);
158 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
159
160
161 spin_lock_irqsave(&vha->hw->vport_slock, flags);
162 qlt_update_vp_map(vha, RESET_AL_PA);
163 spin_unlock_irqrestore(&vha->hw->vport_slock, flags);
164
165 qla2x00_mark_vp_devices_dead(vha);
166 atomic_set(&vha->vp_state, VP_FAILED);
167 vha->flags.management_server_logged_in = 0;
168 if (ret == QLA_SUCCESS) {
169 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
170 } else {
171 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
172 return -1;
173 }
174 return 0;
175}
176
177int
178qla24xx_enable_vp(scsi_qla_host_t *vha)
179{
180 int ret;
181 struct qla_hw_data *ha = vha->hw;
182 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
183
184
185 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
186 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
187 !(ha->current_topology & ISP_CFG_F)) {
188 vha->vp_err_state = VP_ERR_PORTDWN;
189 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
190 goto enable_failed;
191 }
192
193
194 mutex_lock(&ha->vport_lock);
195 ret = qla24xx_modify_vp_config(vha);
196 mutex_unlock(&ha->vport_lock);
197
198 if (ret != QLA_SUCCESS) {
199 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
200 goto enable_failed;
201 }
202
203 ql_dbg(ql_dbg_taskm, vha, 0x801a,
204 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
205 return 0;
206
207enable_failed:
208 ql_dbg(ql_dbg_taskm, vha, 0x801b,
209 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
210 return 1;
211}
212
213static void
214qla24xx_configure_vp(scsi_qla_host_t *vha)
215{
216 struct fc_vport *fc_vport;
217 int ret;
218
219 fc_vport = vha->fc_vport;
220
221 ql_dbg(ql_dbg_vport, vha, 0xa002,
222 "%s: change request #3.\n", __func__);
223 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
224 if (ret != QLA_SUCCESS) {
225 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
226 "receiving of RSCN requests: 0x%x.\n", ret);
227 return;
228 } else {
229
230 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
231 }
232
233 vha->flags.online = 1;
234 if (qla24xx_configure_vhba(vha))
235 return;
236
237 atomic_set(&vha->vp_state, VP_ACTIVE);
238 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
239}
240
241void
242qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
243{
244 scsi_qla_host_t *vha;
245 struct qla_hw_data *ha = rsp->hw;
246 int i = 0;
247 unsigned long flags;
248
249 spin_lock_irqsave(&ha->vport_slock, flags);
250 list_for_each_entry(vha, &ha->vp_list, list) {
251 if (vha->vp_idx) {
252 atomic_inc(&vha->vref_count);
253 spin_unlock_irqrestore(&ha->vport_slock, flags);
254
255 switch (mb[0]) {
256 case MBA_LIP_OCCURRED:
257 case MBA_LOOP_UP:
258 case MBA_LOOP_DOWN:
259 case MBA_LIP_RESET:
260 case MBA_POINT_TO_POINT:
261 case MBA_CHG_IN_CONNECTION:
262 case MBA_PORT_UPDATE:
263 case MBA_RSCN_UPDATE:
264 ql_dbg(ql_dbg_async, vha, 0x5024,
265 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
266 i, *mb, vha);
267 qla2x00_async_event(vha, rsp, mb);
268 break;
269 }
270
271 spin_lock_irqsave(&ha->vport_slock, flags);
272 atomic_dec(&vha->vref_count);
273 wake_up(&vha->vref_waitq);
274 }
275 i++;
276 }
277 spin_unlock_irqrestore(&ha->vport_slock, flags);
278}
279
280int
281qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
282{
283
284
285
286
287 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
288 atomic_set(&vha->loop_state, LOOP_DOWN);
289 qla2x00_mark_all_devices_lost(vha, 0);
290 } else {
291 if (!atomic_read(&vha->loop_down_timer))
292 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
293 }
294
295
296
297
298
299
300 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
301 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
302
303 ql_dbg(ql_dbg_taskm, vha, 0x801d,
304 "Scheduling enable of Vport %d.\n", vha->vp_idx);
305 return qla24xx_enable_vp(vha);
306}
307
308static int
309qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
310{
311 struct qla_hw_data *ha = vha->hw;
312 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
313
314 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
315 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
316
317 qla2x00_do_work(vha);
318
319
320 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
321 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
322
323 ql_dbg(ql_dbg_dpc, vha, 0x4014,
324 "Configure VP scheduled.\n");
325 qla24xx_configure_vp(vha);
326 ql_dbg(ql_dbg_dpc, vha, 0x4015,
327 "Configure VP end.\n");
328 return 0;
329 }
330 }
331
332 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
333 ql_dbg(ql_dbg_dpc, vha, 0x4016,
334 "FCPort update scheduled.\n");
335 qla2x00_update_fcports(vha);
336 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
337 ql_dbg(ql_dbg_dpc, vha, 0x4017,
338 "FCPort update end.\n");
339 }
340
341 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
342 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
343 atomic_read(&vha->loop_state) != LOOP_DOWN) {
344
345 ql_dbg(ql_dbg_dpc, vha, 0x4018,
346 "Relogin needed scheduled.\n");
347 qla2x00_relogin(vha);
348 ql_dbg(ql_dbg_dpc, vha, 0x4019,
349 "Relogin needed end.\n");
350 }
351
352 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
353 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
354 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
355 }
356
357 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
358 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
359 ql_dbg(ql_dbg_dpc, vha, 0x401a,
360 "Loop resync scheduled.\n");
361 qla2x00_loop_resync(vha);
362 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
363 ql_dbg(ql_dbg_dpc, vha, 0x401b,
364 "Loop resync end.\n");
365 }
366 }
367
368 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
369 "Exiting %s.\n", __func__);
370 return 0;
371}
372
373void
374qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
375{
376 struct qla_hw_data *ha = vha->hw;
377 scsi_qla_host_t *vp;
378 unsigned long flags = 0;
379
380 if (vha->vp_idx)
381 return;
382 if (list_empty(&ha->vp_list))
383 return;
384
385 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
386
387 if (!(ha->current_topology & ISP_CFG_F))
388 return;
389
390 spin_lock_irqsave(&ha->vport_slock, flags);
391 list_for_each_entry(vp, &ha->vp_list, list) {
392 if (vp->vp_idx) {
393 atomic_inc(&vp->vref_count);
394 spin_unlock_irqrestore(&ha->vport_slock, flags);
395
396 qla2x00_do_dpc_vp(vp);
397
398 spin_lock_irqsave(&ha->vport_slock, flags);
399 atomic_dec(&vp->vref_count);
400 }
401 }
402 spin_unlock_irqrestore(&ha->vport_slock, flags);
403}
404
405int
406qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
407{
408 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
409 struct qla_hw_data *ha = base_vha->hw;
410 scsi_qla_host_t *vha;
411 uint8_t port_name[WWN_SIZE];
412
413 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
414 return VPCERR_UNSUPPORTED;
415
416
417 if (!ha->flags.npiv_supported)
418 return VPCERR_UNSUPPORTED;
419
420
421 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
422 return VPCERR_NO_FABRIC_SUPP;
423
424
425 u64_to_wwn(fc_vport->port_name, port_name);
426 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
427 return VPCERR_BAD_WWN;
428 vha = qla24xx_find_vhost_by_name(ha, port_name);
429 if (vha)
430 return VPCERR_BAD_WWN;
431
432
433 if (ha->num_vhosts > ha->max_npiv_vports) {
434 ql_dbg(ql_dbg_vport, vha, 0xa004,
435 "num_vhosts %ud is bigger "
436 "than max_npiv_vports %ud.\n",
437 ha->num_vhosts, ha->max_npiv_vports);
438 return VPCERR_UNSUPPORTED;
439 }
440 return 0;
441}
442
443scsi_qla_host_t *
444qla24xx_create_vhost(struct fc_vport *fc_vport)
445{
446 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
447 struct qla_hw_data *ha = base_vha->hw;
448 scsi_qla_host_t *vha;
449 struct scsi_host_template *sht = &qla2xxx_driver_template;
450 struct Scsi_Host *host;
451
452 vha = qla2x00_create_host(sht, ha);
453 if (!vha) {
454 ql_log(ql_log_warn, vha, 0xa005,
455 "scsi_host_alloc() failed for vport.\n");
456 return(NULL);
457 }
458
459 host = vha->host;
460 fc_vport->dd_data = vha;
461
462 u64_to_wwn(fc_vport->node_name, vha->node_name);
463 u64_to_wwn(fc_vport->port_name, vha->port_name);
464
465 vha->fc_vport = fc_vport;
466 vha->device_flags = 0;
467 vha->vp_idx = qla24xx_allocate_vp_id(vha);
468 if (vha->vp_idx > ha->max_npiv_vports) {
469 ql_dbg(ql_dbg_vport, vha, 0xa006,
470 "Couldn't allocate vp_id.\n");
471 goto create_vhost_failed;
472 }
473 vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
474
475 vha->dpc_flags = 0L;
476
477
478
479
480
481 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
482 atomic_set(&vha->loop_state, LOOP_DOWN);
483 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
484
485 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
486
487 vha->req = base_vha->req;
488 host->can_queue = base_vha->req->length + 128;
489 host->cmd_per_lun = 3;
490 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
491 host->max_cmd_len = 32;
492 else
493 host->max_cmd_len = MAX_CMDSZ;
494 host->max_channel = MAX_BUSES - 1;
495 host->max_lun = ql2xmaxlun;
496 host->unique_id = host->host_no;
497 host->max_id = ha->max_fibre_devices;
498 host->transportt = qla2xxx_transport_vport_template;
499
500 ql_dbg(ql_dbg_vport, vha, 0xa007,
501 "Detect vport hba %ld at address = %p.\n",
502 vha->host_no, vha);
503
504 vha->flags.init_done = 1;
505
506 mutex_lock(&ha->vport_lock);
507 set_bit(vha->vp_idx, ha->vp_idx_map);
508 ha->cur_vport_count++;
509 mutex_unlock(&ha->vport_lock);
510
511 return vha;
512
513create_vhost_failed:
514 return NULL;
515}
516
517static void
518qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
519{
520 struct qla_hw_data *ha = vha->hw;
521 uint16_t que_id = req->id;
522
523 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
524 sizeof(request_t), req->ring, req->dma);
525 req->ring = NULL;
526 req->dma = 0;
527 if (que_id) {
528 ha->req_q_map[que_id] = NULL;
529 mutex_lock(&ha->vport_lock);
530 clear_bit(que_id, ha->req_qid_map);
531 mutex_unlock(&ha->vport_lock);
532 }
533 kfree(req->outstanding_cmds);
534 kfree(req);
535 req = NULL;
536}
537
538static void
539qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
540{
541 struct qla_hw_data *ha = vha->hw;
542 uint16_t que_id = rsp->id;
543
544 if (rsp->msix && rsp->msix->have_irq) {
545 free_irq(rsp->msix->vector, rsp->msix->handle);
546 rsp->msix->have_irq = 0;
547 rsp->msix->in_use = 0;
548 rsp->msix->handle = NULL;
549 }
550 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
551 sizeof(response_t), rsp->ring, rsp->dma);
552 rsp->ring = NULL;
553 rsp->dma = 0;
554 if (que_id) {
555 ha->rsp_q_map[que_id] = NULL;
556 mutex_lock(&ha->vport_lock);
557 clear_bit(que_id, ha->rsp_qid_map);
558 mutex_unlock(&ha->vport_lock);
559 }
560 kfree(rsp);
561 rsp = NULL;
562}
563
564int
565qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
566{
567 int ret = -1;
568
569 if (req) {
570 req->options |= BIT_0;
571 ret = qla25xx_init_req_que(vha, req);
572 }
573 if (ret == QLA_SUCCESS)
574 qla25xx_free_req_que(vha, req);
575
576 return ret;
577}
578
579int
580qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
581{
582 int ret = -1;
583
584 if (rsp) {
585 rsp->options |= BIT_0;
586 ret = qla25xx_init_rsp_que(vha, rsp);
587 }
588 if (ret == QLA_SUCCESS)
589 qla25xx_free_rsp_que(vha, rsp);
590
591 return ret;
592}
593
594
595int
596qla25xx_delete_queues(struct scsi_qla_host *vha)
597{
598 int cnt, ret = 0;
599 struct req_que *req = NULL;
600 struct rsp_que *rsp = NULL;
601 struct qla_hw_data *ha = vha->hw;
602 struct qla_qpair *qpair, *tqpair;
603
604 if (ql2xmqsupport) {
605 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
606 qp_list_elem)
607 qla2xxx_delete_qpair(vha, qpair);
608 } else {
609
610 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
611 req = ha->req_q_map[cnt];
612 if (req && test_bit(cnt, ha->req_qid_map)) {
613 ret = qla25xx_delete_req_que(vha, req);
614 if (ret != QLA_SUCCESS) {
615 ql_log(ql_log_warn, vha, 0x00ea,
616 "Couldn't delete req que %d.\n",
617 req->id);
618 return ret;
619 }
620 }
621 }
622
623
624 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
625 rsp = ha->rsp_q_map[cnt];
626 if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
627 ret = qla25xx_delete_rsp_que(vha, rsp);
628 if (ret != QLA_SUCCESS) {
629 ql_log(ql_log_warn, vha, 0x00eb,
630 "Couldn't delete rsp que %d.\n",
631 rsp->id);
632 return ret;
633 }
634 }
635 }
636 }
637
638 return ret;
639}
640
641int
642qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
643 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp)
644{
645 int ret = 0;
646 struct req_que *req = NULL;
647 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
648 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
649 uint16_t que_id = 0;
650 device_reg_t *reg;
651 uint32_t cnt;
652
653 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
654 if (req == NULL) {
655 ql_log(ql_log_fatal, base_vha, 0x00d9,
656 "Failed to allocate memory for request queue.\n");
657 goto failed;
658 }
659
660 req->length = REQUEST_ENTRY_CNT_24XX;
661 req->ring = dma_alloc_coherent(&ha->pdev->dev,
662 (req->length + 1) * sizeof(request_t),
663 &req->dma, GFP_KERNEL);
664 if (req->ring == NULL) {
665 ql_log(ql_log_fatal, base_vha, 0x00da,
666 "Failed to allocate memory for request_ring.\n");
667 goto que_failed;
668 }
669
670 ret = qla2x00_alloc_outstanding_cmds(ha, req);
671 if (ret != QLA_SUCCESS)
672 goto que_failed;
673
674 mutex_lock(&ha->mq_lock);
675 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
676 if (que_id >= ha->max_req_queues) {
677 mutex_unlock(&ha->mq_lock);
678 ql_log(ql_log_warn, base_vha, 0x00db,
679 "No resources to create additional request queue.\n");
680 goto que_failed;
681 }
682 set_bit(que_id, ha->req_qid_map);
683 ha->req_q_map[que_id] = req;
684 req->rid = rid;
685 req->vp_idx = vp_idx;
686 req->qos = qos;
687
688 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
689 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
690 que_id, req->rid, req->vp_idx, req->qos);
691 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
692 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
693 que_id, req->rid, req->vp_idx, req->qos);
694 if (rsp_que < 0)
695 req->rsp = NULL;
696 else
697 req->rsp = ha->rsp_q_map[rsp_que];
698
699 if (MSB(req->rid))
700 options |= BIT_4;
701
702 if (LSB(req->rid))
703 options |= BIT_5;
704 req->options = options;
705
706 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
707 "options=0x%x.\n", req->options);
708 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
709 "options=0x%x.\n", req->options);
710 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
711 req->outstanding_cmds[cnt] = NULL;
712 req->current_outstanding_cmd = 1;
713
714 req->ring_ptr = req->ring;
715 req->ring_index = 0;
716 req->cnt = req->length;
717 req->id = que_id;
718 reg = ISP_QUE_REG(ha, que_id);
719 req->req_q_in = ®->isp25mq.req_q_in;
720 req->req_q_out = ®->isp25mq.req_q_out;
721 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
722 req->out_ptr = (void *)(req->ring + req->length);
723 mutex_unlock(&ha->mq_lock);
724 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
725 "ring_ptr=%p ring_index=%d, "
726 "cnt=%d id=%d max_q_depth=%d.\n",
727 req->ring_ptr, req->ring_index,
728 req->cnt, req->id, req->max_q_depth);
729 ql_dbg(ql_dbg_init, base_vha, 0x00de,
730 "ring_ptr=%p ring_index=%d, "
731 "cnt=%d id=%d max_q_depth=%d.\n",
732 req->ring_ptr, req->ring_index, req->cnt,
733 req->id, req->max_q_depth);
734
735 if (startqp) {
736 ret = qla25xx_init_req_que(base_vha, req);
737 if (ret != QLA_SUCCESS) {
738 ql_log(ql_log_fatal, base_vha, 0x00df,
739 "%s failed.\n", __func__);
740 mutex_lock(&ha->mq_lock);
741 clear_bit(que_id, ha->req_qid_map);
742 mutex_unlock(&ha->mq_lock);
743 goto que_failed;
744 }
745 vha->flags.qpairs_req_created = 1;
746 }
747
748 return req->id;
749
750que_failed:
751 qla25xx_free_req_que(base_vha, req);
752failed:
753 return 0;
754}
755
756static void qla_do_work(struct work_struct *work)
757{
758 unsigned long flags;
759 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
760 struct scsi_qla_host *vha;
761 struct qla_hw_data *ha = qpair->hw;
762
763 spin_lock_irqsave(&qpair->qp_lock, flags);
764 vha = pci_get_drvdata(ha->pdev);
765 qla24xx_process_response_queue(vha, qpair->rsp);
766 spin_unlock_irqrestore(&qpair->qp_lock, flags);
767}
768
769
770int
771qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
772 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp)
773{
774 int ret = 0;
775 struct rsp_que *rsp = NULL;
776 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
777 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
778 uint16_t que_id = 0;
779 device_reg_t *reg;
780
781 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
782 if (rsp == NULL) {
783 ql_log(ql_log_warn, base_vha, 0x0066,
784 "Failed to allocate memory for response queue.\n");
785 goto failed;
786 }
787
788 rsp->length = RESPONSE_ENTRY_CNT_MQ;
789 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
790 (rsp->length + 1) * sizeof(response_t),
791 &rsp->dma, GFP_KERNEL);
792 if (rsp->ring == NULL) {
793 ql_log(ql_log_warn, base_vha, 0x00e1,
794 "Failed to allocate memory for response ring.\n");
795 goto que_failed;
796 }
797
798 mutex_lock(&ha->mq_lock);
799 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
800 if (que_id >= ha->max_rsp_queues) {
801 mutex_unlock(&ha->mq_lock);
802 ql_log(ql_log_warn, base_vha, 0x00e2,
803 "No resources to create additional request queue.\n");
804 goto que_failed;
805 }
806 set_bit(que_id, ha->rsp_qid_map);
807
808 rsp->msix = qpair->msix;
809
810 ha->rsp_q_map[que_id] = rsp;
811 rsp->rid = rid;
812 rsp->vp_idx = vp_idx;
813 rsp->hw = ha;
814 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
815 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
816 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
817
818 if (MSB(rsp->rid))
819 options |= BIT_4;
820
821 if (LSB(rsp->rid))
822 options |= BIT_5;
823
824 if (!IS_MSIX_NACK_CAPABLE(ha))
825 options |= BIT_6;
826
827
828 options |= BIT_1;
829
830 rsp->options = options;
831 rsp->id = que_id;
832 reg = ISP_QUE_REG(ha, que_id);
833 rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
834 rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
835 rsp->in_ptr = (void *)(rsp->ring + rsp->length);
836 mutex_unlock(&ha->mq_lock);
837 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
838 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
839 rsp->options, rsp->id, rsp->rsp_q_in,
840 rsp->rsp_q_out);
841 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
842 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
843 rsp->options, rsp->id, rsp->rsp_q_in,
844 rsp->rsp_q_out);
845
846 ret = qla25xx_request_irq(ha, qpair, qpair->msix,
847 QLA_MSIX_QPAIR_MULTIQ_RSP_Q);
848 if (ret)
849 goto que_failed;
850
851 if (startqp) {
852 ret = qla25xx_init_rsp_que(base_vha, rsp);
853 if (ret != QLA_SUCCESS) {
854 ql_log(ql_log_fatal, base_vha, 0x00e7,
855 "%s failed.\n", __func__);
856 mutex_lock(&ha->mq_lock);
857 clear_bit(que_id, ha->rsp_qid_map);
858 mutex_unlock(&ha->mq_lock);
859 goto que_failed;
860 }
861 vha->flags.qpairs_rsp_created = 1;
862 }
863 rsp->req = NULL;
864
865 qla2x00_init_response_q_entries(rsp);
866 if (qpair->hw->wq)
867 INIT_WORK(&qpair->q_work, qla_do_work);
868 return rsp->id;
869
870que_failed:
871 qla25xx_free_rsp_que(base_vha, rsp);
872failed:
873 return 0;
874}
875
