/drivers/scsi/qla2xxx/qla_mid.c
C | 773 lines | 612 code | 108 blank | 53 comment | 91 complexity | 4d7fde08d20bcc880baa9484ab205ee3 MD5 | raw file
Possible License(s): CC-BY-SA-3.0, GPL-2.0, LGPL-2.0, AGPL-1.0
1/*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7#include "qla_def.h"
8#include "qla_gbl.h"
9
10#include <linux/moduleparam.h>
11#include <linux/vmalloc.h>
12#include <linux/slab.h>
13#include <linux/list.h>
14
15#include <scsi/scsi_tcq.h>
16#include <scsi/scsicam.h>
17#include <linux/delay.h>
18
19void
20qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
21{
22 if (vha->vp_idx && vha->timer_active) {
23 del_timer_sync(&vha->timer);
24 vha->timer_active = 0;
25 }
26}
27
28static uint32_t
29qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
30{
31 uint32_t vp_id;
32 struct qla_hw_data *ha = vha->hw;
33
34 /* Find an empty slot and assign an vp_id */
35 mutex_lock(&ha->vport_lock);
36 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
37 if (vp_id > ha->max_npiv_vports) {
38 DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
39 vp_id, ha->max_npiv_vports));
40 mutex_unlock(&ha->vport_lock);
41 return vp_id;
42 }
43
44 set_bit(vp_id, ha->vp_idx_map);
45 ha->num_vhosts++;
46 vha->vp_idx = vp_id;
47 list_add_tail(&vha->list, &ha->vp_list);
48 mutex_unlock(&ha->vport_lock);
49 return vp_id;
50}
51
52void
53qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
54{
55 uint16_t vp_id;
56 struct qla_hw_data *ha = vha->hw;
57
58 mutex_lock(&ha->vport_lock);
59 vp_id = vha->vp_idx;
60 ha->num_vhosts--;
61 clear_bit(vp_id, ha->vp_idx_map);
62 list_del(&vha->list);
63 mutex_unlock(&ha->vport_lock);
64}
65
66static scsi_qla_host_t *
67qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
68{
69 scsi_qla_host_t *vha;
70 struct scsi_qla_host *tvha;
71
72 /* Locate matching device in database. */
73 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
74 if (!memcmp(port_name, vha->port_name, WWN_SIZE))
75 return vha;
76 }
77 return NULL;
78}
79
80/*
81 * qla2x00_mark_vp_devices_dead
82 * Updates fcport state when device goes offline.
83 *
84 * Input:
85 * ha = adapter block pointer.
86 * fcport = port structure pointer.
87 *
88 * Return:
89 * None.
90 *
91 * Context:
92 */
93static void
94qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
95{
96 fc_port_t *fcport;
97
98 list_for_each_entry(fcport, &vha->vp_fcports, list) {
99 DEBUG15(printk("scsi(%ld): Marking port dead, "
100 "loop_id=0x%04x :%x\n",
101 vha->host_no, fcport->loop_id, fcport->vp_idx));
102
103 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
104 qla2x00_mark_device_lost(vha, fcport, 0, 0);
105 atomic_set(&fcport->state, FCS_UNCONFIGURED);
106 }
107}
108
109int
110qla24xx_disable_vp(scsi_qla_host_t *vha)
111{
112 int ret;
113
114 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
115 atomic_set(&vha->loop_state, LOOP_DOWN);
116 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
117
118 qla2x00_mark_vp_devices_dead(vha);
119 atomic_set(&vha->vp_state, VP_FAILED);
120 vha->flags.management_server_logged_in = 0;
121 if (ret == QLA_SUCCESS) {
122 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
123 } else {
124 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
125 return -1;
126 }
127 return 0;
128}
129
130int
131qla24xx_enable_vp(scsi_qla_host_t *vha)
132{
133 int ret;
134 struct qla_hw_data *ha = vha->hw;
135 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
136
137 /* Check if physical ha port is Up */
138 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
139 atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
140 vha->vp_err_state = VP_ERR_PORTDWN;
141 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
142 goto enable_failed;
143 }
144
145 /* Initialize the new vport unless it is a persistent port */
146 mutex_lock(&ha->vport_lock);
147 ret = qla24xx_modify_vp_config(vha);
148 mutex_unlock(&ha->vport_lock);
149
150 if (ret != QLA_SUCCESS) {
151 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
152 goto enable_failed;
153 }
154
155 DEBUG15(qla_printk(KERN_INFO, ha,
156 "Virtual port with id: %d - Enabled\n", vha->vp_idx));
157 return 0;
158
159enable_failed:
160 DEBUG15(qla_printk(KERN_INFO, ha,
161 "Virtual port with id: %d - Disabled\n", vha->vp_idx));
162 return 1;
163}
164
165static void
166qla24xx_configure_vp(scsi_qla_host_t *vha)
167{
168 struct fc_vport *fc_vport;
169 int ret;
170
171 fc_vport = vha->fc_vport;
172
173 DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
174 vha->host_no, __func__));
175 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
176 if (ret != QLA_SUCCESS) {
177 DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable "
178 "receiving of RSCN requests: 0x%x\n", ret));
179 return;
180 } else {
181 /* Corresponds to SCR enabled */
182 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
183 }
184
185 vha->flags.online = 1;
186 if (qla24xx_configure_vhba(vha))
187 return;
188
189 atomic_set(&vha->vp_state, VP_ACTIVE);
190 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
191}
192
193void
194qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
195{
196 scsi_qla_host_t *vha, *tvha;
197 struct qla_hw_data *ha = rsp->hw;
198 int i = 0;
199
200 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
201 if (vha->vp_idx) {
202 switch (mb[0]) {
203 case MBA_LIP_OCCURRED:
204 case MBA_LOOP_UP:
205 case MBA_LOOP_DOWN:
206 case MBA_LIP_RESET:
207 case MBA_POINT_TO_POINT:
208 case MBA_CHG_IN_CONNECTION:
209 case MBA_PORT_UPDATE:
210 case MBA_RSCN_UPDATE:
211 DEBUG15(printk("scsi(%ld)%s: Async_event for"
212 " VP[%d], mb = 0x%x, vha=%p\n",
213 vha->host_no, __func__, i, *mb, vha));
214 qla2x00_async_event(vha, rsp, mb);
215 break;
216 }
217 }
218 i++;
219 }
220}
221
222int
223qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
224{
225 /*
226 * Physical port will do most of the abort and recovery work. We can
227 * just treat it as a loop down
228 */
229 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
230 atomic_set(&vha->loop_state, LOOP_DOWN);
231 qla2x00_mark_all_devices_lost(vha, 0);
232 } else {
233 if (!atomic_read(&vha->loop_down_timer))
234 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
235 }
236
237 /*
238 * To exclusively reset vport, we need to log it out first. Note: this
239 * control_vp can fail if ISP reset is already issued, this is
240 * expected, as the vp would be already logged out due to ISP reset.
241 */
242 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
243 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
244
245 DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
246 vha->host_no, vha->vp_idx));
247 return qla24xx_enable_vp(vha);
248}
249
250static int
251qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
252{
253 qla2x00_do_work(vha);
254
255 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
256 /* VP acquired. complete port configuration */
257 qla24xx_configure_vp(vha);
258 return 0;
259 }
260
261 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
262 qla2x00_update_fcports(vha);
263 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
264 }
265
266 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
267 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
268 atomic_read(&vha->loop_state) != LOOP_DOWN) {
269
270 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
271 vha->host_no));
272 qla2x00_relogin(vha);
273
274 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
275 vha->host_no));
276 }
277
278 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
279 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
280 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
281 }
282
283 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
284 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
285 qla2x00_loop_resync(vha);
286 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
287 }
288 }
289
290 return 0;
291}
292
293void
294qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
295{
296 int ret;
297 struct qla_hw_data *ha = vha->hw;
298 scsi_qla_host_t *vp;
299 struct scsi_qla_host *tvp;
300
301 if (vha->vp_idx)
302 return;
303 if (list_empty(&ha->vp_list))
304 return;
305
306 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
307
308 if (!(ha->current_topology & ISP_CFG_F))
309 return;
310
311 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
312 if (vp->vp_idx)
313 ret = qla2x00_do_dpc_vp(vp);
314 }
315}
316
317int
318qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
319{
320 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
321 struct qla_hw_data *ha = base_vha->hw;
322 scsi_qla_host_t *vha;
323 uint8_t port_name[WWN_SIZE];
324
325 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
326 return VPCERR_UNSUPPORTED;
327
328 /* Check up the F/W and H/W support NPIV */
329 if (!ha->flags.npiv_supported)
330 return VPCERR_UNSUPPORTED;
331
332 /* Check up whether npiv supported switch presented */
333 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
334 return VPCERR_NO_FABRIC_SUPP;
335
336 /* Check up unique WWPN */
337 u64_to_wwn(fc_vport->port_name, port_name);
338 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
339 return VPCERR_BAD_WWN;
340 vha = qla24xx_find_vhost_by_name(ha, port_name);
341 if (vha)
342 return VPCERR_BAD_WWN;
343
344 /* Check up max-npiv-supports */
345 if (ha->num_vhosts > ha->max_npiv_vports) {
346 DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
347 "max_npv_vports %ud.\n", base_vha->host_no,
348 ha->num_vhosts, ha->max_npiv_vports));
349 return VPCERR_UNSUPPORTED;
350 }
351 return 0;
352}
353
354scsi_qla_host_t *
355qla24xx_create_vhost(struct fc_vport *fc_vport)
356{
357 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
358 struct qla_hw_data *ha = base_vha->hw;
359 scsi_qla_host_t *vha;
360 struct scsi_host_template *sht = &qla2xxx_driver_template;
361 struct Scsi_Host *host;
362
363 vha = qla2x00_create_host(sht, ha);
364 if (!vha) {
365 DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
366 return(NULL);
367 }
368
369 host = vha->host;
370 fc_vport->dd_data = vha;
371 /* New host info */
372 u64_to_wwn(fc_vport->node_name, vha->node_name);
373 u64_to_wwn(fc_vport->port_name, vha->port_name);
374
375 vha->fc_vport = fc_vport;
376 vha->device_flags = 0;
377 vha->vp_idx = qla24xx_allocate_vp_id(vha);
378 if (vha->vp_idx > ha->max_npiv_vports) {
379 DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
380 vha->host_no));
381 goto create_vhost_failed;
382 }
383 vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
384
385 vha->dpc_flags = 0L;
386
387 /*
388 * To fix the issue of processing a parent's RSCN for the vport before
389 * its SCR is complete.
390 */
391 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
392 atomic_set(&vha->loop_state, LOOP_DOWN);
393 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
394
395 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
396
397 vha->req = base_vha->req;
398 host->can_queue = base_vha->req->length + 128;
399 host->this_id = 255;
400 host->cmd_per_lun = 3;
401 host->max_cmd_len = MAX_CMDSZ;
402 host->max_channel = MAX_BUSES - 1;
403 host->max_lun = MAX_LUNS;
404 host->unique_id = host->host_no;
405 host->max_id = MAX_TARGETS_2200;
406 host->transportt = qla2xxx_transport_vport_template;
407
408 DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
409 vha->host_no, vha));
410
411 vha->flags.init_done = 1;
412
413 mutex_lock(&ha->vport_lock);
414 set_bit(vha->vp_idx, ha->vp_idx_map);
415 ha->cur_vport_count++;
416 mutex_unlock(&ha->vport_lock);
417
418 return vha;
419
420create_vhost_failed:
421 return NULL;
422}
423
424static void
425qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
426{
427 struct qla_hw_data *ha = vha->hw;
428 uint16_t que_id = req->id;
429
430 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
431 sizeof(request_t), req->ring, req->dma);
432 req->ring = NULL;
433 req->dma = 0;
434 if (que_id) {
435 ha->req_q_map[que_id] = NULL;
436 mutex_lock(&ha->vport_lock);
437 clear_bit(que_id, ha->req_qid_map);
438 mutex_unlock(&ha->vport_lock);
439 }
440 kfree(req);
441 req = NULL;
442}
443
444static void
445qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
446{
447 struct qla_hw_data *ha = vha->hw;
448 uint16_t que_id = rsp->id;
449
450 if (rsp->msix && rsp->msix->have_irq) {
451 free_irq(rsp->msix->vector, rsp);
452 rsp->msix->have_irq = 0;
453 rsp->msix->rsp = NULL;
454 }
455 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
456 sizeof(response_t), rsp->ring, rsp->dma);
457 rsp->ring = NULL;
458 rsp->dma = 0;
459 if (que_id) {
460 ha->rsp_q_map[que_id] = NULL;
461 mutex_lock(&ha->vport_lock);
462 clear_bit(que_id, ha->rsp_qid_map);
463 mutex_unlock(&ha->vport_lock);
464 }
465 kfree(rsp);
466 rsp = NULL;
467}
468
469int
470qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
471{
472 int ret = -1;
473
474 if (req) {
475 req->options |= BIT_0;
476 ret = qla25xx_init_req_que(vha, req);
477 }
478 if (ret == QLA_SUCCESS)
479 qla25xx_free_req_que(vha, req);
480
481 return ret;
482}
483
484int
485qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
486{
487 int ret = -1;
488
489 if (rsp) {
490 rsp->options |= BIT_0;
491 ret = qla25xx_init_rsp_que(vha, rsp);
492 }
493 if (ret == QLA_SUCCESS)
494 qla25xx_free_rsp_que(vha, rsp);
495
496 return ret;
497}
498
499int qla25xx_update_req_que(struct scsi_qla_host *vha, uint8_t que, uint8_t qos)
500{
501 int ret = 0;
502 struct qla_hw_data *ha = vha->hw;
503 struct req_que *req = ha->req_q_map[que];
504
505 req->options |= BIT_3;
506 req->qos = qos;
507 ret = qla25xx_init_req_que(vha, req);
508 if (ret != QLA_SUCCESS)
509 DEBUG2_17(printk(KERN_WARNING "%s failed\n", __func__));
510 /* restore options bit */
511 req->options &= ~BIT_3;
512 return ret;
513}
514
515
516/* Delete all queues for a given vhost */
517int
518qla25xx_delete_queues(struct scsi_qla_host *vha)
519{
520 int cnt, ret = 0;
521 struct req_que *req = NULL;
522 struct rsp_que *rsp = NULL;
523 struct qla_hw_data *ha = vha->hw;
524
525 /* Delete request queues */
526 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
527 req = ha->req_q_map[cnt];
528 if (req) {
529 ret = qla25xx_delete_req_que(vha, req);
530 if (ret != QLA_SUCCESS) {
531 qla_printk(KERN_WARNING, ha,
532 "Couldn't delete req que %d\n",
533 req->id);
534 return ret;
535 }
536 }
537 }
538
539 /* Delete response queues */
540 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
541 rsp = ha->rsp_q_map[cnt];
542 if (rsp) {
543 ret = qla25xx_delete_rsp_que(vha, rsp);
544 if (ret != QLA_SUCCESS) {
545 qla_printk(KERN_WARNING, ha,
546 "Couldn't delete rsp que %d\n",
547 rsp->id);
548 return ret;
549 }
550 }
551 }
552 return ret;
553}
554
555int
556qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
557 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
558{
559 int ret = 0;
560 struct req_que *req = NULL;
561 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
562 uint16_t que_id = 0;
563 device_reg_t __iomem *reg;
564 uint32_t cnt;
565
566 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
567 if (req == NULL) {
568 qla_printk(KERN_WARNING, ha, "could not allocate memory"
569 "for request que\n");
570 goto failed;
571 }
572
573 req->length = REQUEST_ENTRY_CNT_24XX;
574 req->ring = dma_alloc_coherent(&ha->pdev->dev,
575 (req->length + 1) * sizeof(request_t),
576 &req->dma, GFP_KERNEL);
577 if (req->ring == NULL) {
578 qla_printk(KERN_WARNING, ha,
579 "Memory Allocation failed - request_ring\n");
580 goto que_failed;
581 }
582
583 mutex_lock(&ha->vport_lock);
584 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
585 if (que_id >= ha->max_req_queues) {
586 mutex_unlock(&ha->vport_lock);
587 qla_printk(KERN_INFO, ha, "No resources to create "
588 "additional request queue\n");
589 goto que_failed;
590 }
591 set_bit(que_id, ha->req_qid_map);
592 ha->req_q_map[que_id] = req;
593 req->rid = rid;
594 req->vp_idx = vp_idx;
595 req->qos = qos;
596
597 if (rsp_que < 0)
598 req->rsp = NULL;
599 else
600 req->rsp = ha->rsp_q_map[rsp_que];
601 /* Use alternate PCI bus number */
602 if (MSB(req->rid))
603 options |= BIT_4;
604 /* Use alternate PCI devfn */
605 if (LSB(req->rid))
606 options |= BIT_5;
607 req->options = options;
608
609 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
610 req->outstanding_cmds[cnt] = NULL;
611 req->current_outstanding_cmd = 1;
612
613 req->ring_ptr = req->ring;
614 req->ring_index = 0;
615 req->cnt = req->length;
616 req->id = que_id;
617 reg = ISP_QUE_REG(ha, que_id);
618 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
619 mutex_unlock(&ha->vport_lock);
620
621 ret = qla25xx_init_req_que(base_vha, req);
622 if (ret != QLA_SUCCESS) {
623 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
624 mutex_lock(&ha->vport_lock);
625 clear_bit(que_id, ha->req_qid_map);
626 mutex_unlock(&ha->vport_lock);
627 goto que_failed;
628 }
629
630 return req->id;
631
632que_failed:
633 qla25xx_free_req_que(base_vha, req);
634failed:
635 return 0;
636}
637
638static void qla_do_work(struct work_struct *work)
639{
640 unsigned long flags;
641 struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
642 struct scsi_qla_host *vha;
643 struct qla_hw_data *ha = rsp->hw;
644
645 spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
646 vha = pci_get_drvdata(ha->pdev);
647 qla24xx_process_response_queue(vha, rsp);
648 spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags);
649}
650
651/* create response queue */
652int
653qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
654 uint8_t vp_idx, uint16_t rid, int req)
655{
656 int ret = 0;
657 struct rsp_que *rsp = NULL;
658 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
659 uint16_t que_id = 0;
660 device_reg_t __iomem *reg;
661
662 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
663 if (rsp == NULL) {
664 qla_printk(KERN_WARNING, ha, "could not allocate memory for"
665 " response que\n");
666 goto failed;
667 }
668
669 rsp->length = RESPONSE_ENTRY_CNT_MQ;
670 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
671 (rsp->length + 1) * sizeof(response_t),
672 &rsp->dma, GFP_KERNEL);
673 if (rsp->ring == NULL) {
674 qla_printk(KERN_WARNING, ha,
675 "Memory Allocation failed - response_ring\n");
676 goto que_failed;
677 }
678
679 mutex_lock(&ha->vport_lock);
680 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
681 if (que_id >= ha->max_rsp_queues) {
682 mutex_unlock(&ha->vport_lock);
683 qla_printk(KERN_INFO, ha, "No resources to create "
684 "additional response queue\n");
685 goto que_failed;
686 }
687 set_bit(que_id, ha->rsp_qid_map);
688
689 if (ha->flags.msix_enabled)
690 rsp->msix = &ha->msix_entries[que_id + 1];
691 else
692 qla_printk(KERN_WARNING, ha, "msix not enabled\n");
693
694 ha->rsp_q_map[que_id] = rsp;
695 rsp->rid = rid;
696 rsp->vp_idx = vp_idx;
697 rsp->hw = ha;
698 /* Use alternate PCI bus number */
699 if (MSB(rsp->rid))
700 options |= BIT_4;
701 /* Use alternate PCI devfn */
702 if (LSB(rsp->rid))
703 options |= BIT_5;
704 /* Enable MSIX handshake mode on for uncapable adapters */
705 if (!IS_MSIX_NACK_CAPABLE(ha))
706 options |= BIT_6;
707
708 rsp->options = options;
709 rsp->id = que_id;
710 reg = ISP_QUE_REG(ha, que_id);
711 rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
712 rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
713 mutex_unlock(&ha->vport_lock);
714
715 ret = qla25xx_request_irq(rsp);
716 if (ret)
717 goto que_failed;
718
719 ret = qla25xx_init_rsp_que(base_vha, rsp);
720 if (ret != QLA_SUCCESS) {
721 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
722 mutex_lock(&ha->vport_lock);
723 clear_bit(que_id, ha->rsp_qid_map);
724 mutex_unlock(&ha->vport_lock);
725 goto que_failed;
726 }
727 if (req >= 0)
728 rsp->req = ha->req_q_map[req];
729 else
730 rsp->req = NULL;
731
732 qla2x00_init_response_q_entries(rsp);
733 if (rsp->hw->wq)
734 INIT_WORK(&rsp->q_work, qla_do_work);
735 return rsp->id;
736
737que_failed:
738 qla25xx_free_rsp_que(base_vha, rsp);
739failed:
740 return 0;
741}
742
743int
744qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos)
745{
746 uint16_t options = 0;
747 uint8_t ret = 0;
748 struct qla_hw_data *ha = vha->hw;
749 struct rsp_que *rsp;
750
751 options |= BIT_1;
752 ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0, -1);
753 if (!ret) {
754 qla_printk(KERN_WARNING, ha, "Response Que create failed\n");
755 return ret;
756 } else
757 qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret);
758 rsp = ha->rsp_q_map[ret];
759
760 options = 0;
761 if (qos & BIT_7)
762 options |= BIT_8;
763 ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret,
764 qos & ~BIT_7);
765 if (ret) {
766 vha->req = ha->req_q_map[ret];
767 qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret);
768 } else
769 qla_printk(KERN_WARNING, ha, "Request Que create failed\n");
770 rsp->req = ha->req_q_map[ret];
771
772 return ret;
773}