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workqueue: Make worker_attach/detach_pool() update worker->pool
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_mid.c
blobf6f0a759a7c248eb403873c01fc9d4d912cced60
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
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
20 void
21 qla2x00_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
29 static uint32_t
30 qla24xx_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 /* Find an empty slot and assign an vp_id */
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 spin_unlock_irqrestore(&ha->vport_slock, flags);
54
55 spin_lock_irqsave(&ha->hardware_lock, flags);
56 qlt_update_vp_map(vha, SET_VP_IDX);
57 spin_unlock_irqrestore(&ha->hardware_lock, flags);
58
59 mutex_unlock(&ha->vport_lock);
60 return vp_id;
61 }
62
63 void
64 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
65 {
66 uint16_t vp_id;
67 struct qla_hw_data *ha = vha->hw;
68 unsigned long flags = 0;
69
70 mutex_lock(&ha->vport_lock);
71 /*
72 * Wait for all pending activities to finish before removing vport from
73 * the list.
74 * Lock needs to be held for safe removal from the list (it
75 * ensures no active vp_list traversal while the vport is removed
76 * from the queue)
77 */
78 wait_event_timeout(vha->vref_waitq, !atomic_read(&vha->vref_count),
79 10*HZ);
80
81 spin_lock_irqsave(&ha->vport_slock, flags);
82 if (atomic_read(&vha->vref_count)) {
83 ql_dbg(ql_dbg_vport, vha, 0xfffa,
84 "vha->vref_count=%u timeout\n", vha->vref_count.counter);
85 vha->vref_count = (atomic_t)ATOMIC_INIT(0);
86 }
87 list_del(&vha->list);
88 qlt_update_vp_map(vha, RESET_VP_IDX);
89 spin_unlock_irqrestore(&ha->vport_slock, flags);
90
91 vp_id = vha->vp_idx;
92 ha->num_vhosts--;
93 clear_bit(vp_id, ha->vp_idx_map);
94
95 mutex_unlock(&ha->vport_lock);
96 }
97
98 static scsi_qla_host_t *
99 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
100 {
101 scsi_qla_host_t *vha;
102 struct scsi_qla_host *tvha;
103 unsigned long flags;
104
105 spin_lock_irqsave(&ha->vport_slock, flags);
106 /* Locate matching device in database. */
107 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
108 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
109 spin_unlock_irqrestore(&ha->vport_slock, flags);
110 return vha;
111 }
112 }
113 spin_unlock_irqrestore(&ha->vport_slock, flags);
114 return NULL;
115 }
116
117 /*
118 * qla2x00_mark_vp_devices_dead
119 * Updates fcport state when device goes offline.
120 *
121 * Input:
122 * ha = adapter block pointer.
123 * fcport = port structure pointer.
124 *
125 * Return:
126 * None.
127 *
128 * Context:
129 */
130 static void
131 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
132 {
133 /*
134 * !!! NOTE !!!
135 * This function, if called in contexts other than vp create, disable
136 * or delete, please make sure this is synchronized with the
137 * delete thread.
138 */
139 fc_port_t *fcport;
140
141 list_for_each_entry(fcport, &vha->vp_fcports, list) {
142 ql_dbg(ql_dbg_vport, vha, 0xa001,
143 "Marking port dead, loop_id=0x%04x : %x.\n",
144 fcport->loop_id, fcport->vha->vp_idx);
145
146 qla2x00_mark_device_lost(vha, fcport, 0, 0);
147 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
148 }
149 }
150
151 int
152 qla24xx_disable_vp(scsi_qla_host_t *vha)
153 {
154 unsigned long flags;
155 int ret;
156
157 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
158 atomic_set(&vha->loop_state, LOOP_DOWN);
159 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
160
161 /* Remove port id from vp target map */
162 spin_lock_irqsave(&vha->hw->hardware_lock, flags);
163 qlt_update_vp_map(vha, RESET_AL_PA);
164 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
165
166 qla2x00_mark_vp_devices_dead(vha);
167 atomic_set(&vha->vp_state, VP_FAILED);
168 vha->flags.management_server_logged_in = 0;
169 if (ret == QLA_SUCCESS) {
170 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
171 } else {
172 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
173 return -1;
174 }
175 return 0;
176 }
177
178 int
179 qla24xx_enable_vp(scsi_qla_host_t *vha)
180 {
181 int ret;
182 struct qla_hw_data *ha = vha->hw;
183 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
184
185 /* Check if physical ha port is Up */
186 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
187 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
188 !(ha->current_topology & ISP_CFG_F)) {
189 vha->vp_err_state = VP_ERR_PORTDWN;
190 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
191 ql_dbg(ql_dbg_taskm, vha, 0x800b,
192 "%s skip enable. loop_state %x topo %x\n",
193 __func__, base_vha->loop_state.counter,
194 ha->current_topology);
195
196 goto enable_failed;
197 }
198
199 /* Initialize the new vport unless it is a persistent port */
200 mutex_lock(&ha->vport_lock);
201 ret = qla24xx_modify_vp_config(vha);
202 mutex_unlock(&ha->vport_lock);
203
204 if (ret != QLA_SUCCESS) {
205 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
206 goto enable_failed;
207 }
208
209 ql_dbg(ql_dbg_taskm, vha, 0x801a,
210 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
211 return 0;
212
213 enable_failed:
214 ql_dbg(ql_dbg_taskm, vha, 0x801b,
215 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
216 return 1;
217 }
218
219 static void
220 qla24xx_configure_vp(scsi_qla_host_t *vha)
221 {
222 struct fc_vport *fc_vport;
223 int ret;
224
225 fc_vport = vha->fc_vport;
226
227 ql_dbg(ql_dbg_vport, vha, 0xa002,
228 "%s: change request #3.\n", __func__);
229 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
230 if (ret != QLA_SUCCESS) {
231 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
232 "receiving of RSCN requests: 0x%x.\n", ret);
233 return;
234 } else {
235 /* Corresponds to SCR enabled */
236 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
237 }
238
239 vha->flags.online = 1;
240 if (qla24xx_configure_vhba(vha))
241 return;
242
243 atomic_set(&vha->vp_state, VP_ACTIVE);
244 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
245 }
246
247 void
248 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
249 {
250 scsi_qla_host_t *vha;
251 struct qla_hw_data *ha = rsp->hw;
252 int i = 0;
253 unsigned long flags;
254
255 spin_lock_irqsave(&ha->vport_slock, flags);
256 list_for_each_entry(vha, &ha->vp_list, list) {
257 if (vha->vp_idx) {
258 atomic_inc(&vha->vref_count);
259 spin_unlock_irqrestore(&ha->vport_slock, flags);
260
261 switch (mb[0]) {
262 case MBA_LIP_OCCURRED:
263 case MBA_LOOP_UP:
264 case MBA_LOOP_DOWN:
265 case MBA_LIP_RESET:
266 case MBA_POINT_TO_POINT:
267 case MBA_CHG_IN_CONNECTION:
268 ql_dbg(ql_dbg_async, vha, 0x5024,
269 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
270 i, *mb, vha);
271 qla2x00_async_event(vha, rsp, mb);
272 break;
273 case MBA_PORT_UPDATE:
274 case MBA_RSCN_UPDATE:
275 if ((mb[3] & 0xff) == vha->vp_idx) {
276 ql_dbg(ql_dbg_async, vha, 0x5024,
277 "Async_event for VP[%d], mb=0x%x vha=%p\n",
278 i, *mb, vha);
279 qla2x00_async_event(vha, rsp, mb);
280 }
281 break;
282 }
283
284 spin_lock_irqsave(&ha->vport_slock, flags);
285 atomic_dec(&vha->vref_count);
286 wake_up(&vha->vref_waitq);
287 }
288 i++;
289 }
290 spin_unlock_irqrestore(&ha->vport_slock, flags);
291 }
292
293 int
294 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
295 {
296 /*
297 * Physical port will do most of the abort and recovery work. We can
298 * just treat it as a loop down
299 */
300 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
301 atomic_set(&vha->loop_state, LOOP_DOWN);
302 qla2x00_mark_all_devices_lost(vha, 0);
303 } else {
304 if (!atomic_read(&vha->loop_down_timer))
305 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
306 }
307
308 /*
309 * To exclusively reset vport, we need to log it out first. Note: this
310 * control_vp can fail if ISP reset is already issued, this is
311 * expected, as the vp would be already logged out due to ISP reset.
312 */
313 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
314 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
315
316 ql_dbg(ql_dbg_taskm, vha, 0x801d,
317 "Scheduling enable of Vport %d.\n", vha->vp_idx);
318 return qla24xx_enable_vp(vha);
319 }
320
321 static int
322 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
323 {
324 struct qla_hw_data *ha = vha->hw;
325 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
326
327 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
328 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
329
330 /* Check if Fw is ready to configure VP first */
331 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
332 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
333 /* VP acquired. complete port configuration */
334 ql_dbg(ql_dbg_dpc, vha, 0x4014,
335 "Configure VP scheduled.\n");
336 qla24xx_configure_vp(vha);
337 ql_dbg(ql_dbg_dpc, vha, 0x4015,
338 "Configure VP end.\n");
339 return 0;
340 }
341 }
342
343 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
344 ql_dbg(ql_dbg_dpc, vha, 0x4016,
345 "FCPort update scheduled.\n");
346 qla2x00_update_fcports(vha);
347 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
348 ql_dbg(ql_dbg_dpc, vha, 0x4017,
349 "FCPort update end.\n");
350 }
351
352 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
353 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
354 atomic_read(&vha->loop_state) != LOOP_DOWN) {
355
356 if (!vha->relogin_jif ||
357 time_after_eq(jiffies, vha->relogin_jif)) {
358 vha->relogin_jif = jiffies + HZ;
359 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
360
361 ql_dbg(ql_dbg_dpc, vha, 0x4018,
362 "Relogin needed scheduled.\n");
363 qla24xx_post_relogin_work(vha);
364 }
365 }
366
367 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
368 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
369 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
370 }
371
372 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
373 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
374 ql_dbg(ql_dbg_dpc, vha, 0x401a,
375 "Loop resync scheduled.\n");
376 qla2x00_loop_resync(vha);
377 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
378 ql_dbg(ql_dbg_dpc, vha, 0x401b,
379 "Loop resync end.\n");
380 }
381 }
382
383 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
384 "Exiting %s.\n", __func__);
385 return 0;
386 }
387
388 void
389 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
390 {
391 struct qla_hw_data *ha = vha->hw;
392 scsi_qla_host_t *vp;
393 unsigned long flags = 0;
394
395 if (vha->vp_idx)
396 return;
397 if (list_empty(&ha->vp_list))
398 return;
399
400 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
401
402 if (!(ha->current_topology & ISP_CFG_F))
403 return;
404
405 spin_lock_irqsave(&ha->vport_slock, flags);
406 list_for_each_entry(vp, &ha->vp_list, list) {
407 if (vp->vp_idx) {
408 atomic_inc(&vp->vref_count);
409 spin_unlock_irqrestore(&ha->vport_slock, flags);
410
411 qla2x00_do_dpc_vp(vp);
412
413 spin_lock_irqsave(&ha->vport_slock, flags);
414 atomic_dec(&vp->vref_count);
415 }
416 }
417 spin_unlock_irqrestore(&ha->vport_slock, flags);
418 }
419
420 int
421 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
422 {
423 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
424 struct qla_hw_data *ha = base_vha->hw;
425 scsi_qla_host_t *vha;
426 uint8_t port_name[WWN_SIZE];
427
428 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
429 return VPCERR_UNSUPPORTED;
430
431 /* Check up the F/W and H/W support NPIV */
432 if (!ha->flags.npiv_supported)
433 return VPCERR_UNSUPPORTED;
434
435 /* Check up whether npiv supported switch presented */
436 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
437 return VPCERR_NO_FABRIC_SUPP;
438
439 /* Check up unique WWPN */
440 u64_to_wwn(fc_vport->port_name, port_name);
441 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
442 return VPCERR_BAD_WWN;
443 vha = qla24xx_find_vhost_by_name(ha, port_name);
444 if (vha)
445 return VPCERR_BAD_WWN;
446
447 /* Check up max-npiv-supports */
448 if (ha->num_vhosts > ha->max_npiv_vports) {
449 ql_dbg(ql_dbg_vport, vha, 0xa004,
450 "num_vhosts %ud is bigger "
451 "than max_npiv_vports %ud.\n",
452 ha->num_vhosts, ha->max_npiv_vports);
453 return VPCERR_UNSUPPORTED;
454 }
455 return 0;
456 }
457
458 scsi_qla_host_t *
459 qla24xx_create_vhost(struct fc_vport *fc_vport)
460 {
461 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
462 struct qla_hw_data *ha = base_vha->hw;
463 scsi_qla_host_t *vha;
464 struct scsi_host_template *sht = &qla2xxx_driver_template;
465 struct Scsi_Host *host;
466
467 vha = qla2x00_create_host(sht, ha);
468 if (!vha) {
469 ql_log(ql_log_warn, vha, 0xa005,
470 "scsi_host_alloc() failed for vport.\n");
471 return(NULL);
472 }
473
474 host = vha->host;
475 fc_vport->dd_data = vha;
476 /* New host info */
477 u64_to_wwn(fc_vport->node_name, vha->node_name);
478 u64_to_wwn(fc_vport->port_name, vha->port_name);
479
480 vha->fc_vport = fc_vport;
481 vha->device_flags = 0;
482 vha->vp_idx = qla24xx_allocate_vp_id(vha);
483 if (vha->vp_idx > ha->max_npiv_vports) {
484 ql_dbg(ql_dbg_vport, vha, 0xa006,
485 "Couldn't allocate vp_id.\n");
486 goto create_vhost_failed;
487 }
488 vha->mgmt_svr_loop_id = NPH_MGMT_SERVER;
489
490 vha->dpc_flags = 0L;
491
492 /*
493 * To fix the issue of processing a parent's RSCN for the vport before
494 * its SCR is complete.
495 */
496 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
497 atomic_set(&vha->loop_state, LOOP_DOWN);
498 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
499
500 qla2x00_start_timer(vha, WATCH_INTERVAL);
501
502 vha->req = base_vha->req;
503 host->can_queue = base_vha->req->length + 128;
504 host->cmd_per_lun = 3;
505 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
506 host->max_cmd_len = 32;
507 else
508 host->max_cmd_len = MAX_CMDSZ;
509 host->max_channel = MAX_BUSES - 1;
510 host->max_lun = ql2xmaxlun;
511 host->unique_id = host->host_no;
512 host->max_id = ha->max_fibre_devices;
513 host->transportt = qla2xxx_transport_vport_template;
514
515 ql_dbg(ql_dbg_vport, vha, 0xa007,
516 "Detect vport hba %ld at address = %p.\n",
517 vha->host_no, vha);
518
519 vha->flags.init_done = 1;
520
521 mutex_lock(&ha->vport_lock);
522 set_bit(vha->vp_idx, ha->vp_idx_map);
523 ha->cur_vport_count++;
524 mutex_unlock(&ha->vport_lock);
525
526 return vha;
527
528 create_vhost_failed:
529 return NULL;
530 }
531
532 static void
533 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
534 {
535 struct qla_hw_data *ha = vha->hw;
536 uint16_t que_id = req->id;
537
538 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
539 sizeof(request_t), req->ring, req->dma);
540 req->ring = NULL;
541 req->dma = 0;
542 if (que_id) {
543 ha->req_q_map[que_id] = NULL;
544 mutex_lock(&ha->vport_lock);
545 clear_bit(que_id, ha->req_qid_map);
546 mutex_unlock(&ha->vport_lock);
547 }
548 kfree(req->outstanding_cmds);
549 kfree(req);
550 req = NULL;
551 }
552
553 static void
554 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
555 {
556 struct qla_hw_data *ha = vha->hw;
557 uint16_t que_id = rsp->id;
558
559 if (rsp->msix && rsp->msix->have_irq) {
560 free_irq(rsp->msix->vector, rsp->msix->handle);
561 rsp->msix->have_irq = 0;
562 rsp->msix->in_use = 0;
563 rsp->msix->handle = NULL;
564 }
565 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
566 sizeof(response_t), rsp->ring, rsp->dma);
567 rsp->ring = NULL;
568 rsp->dma = 0;
569 if (que_id) {
570 ha->rsp_q_map[que_id] = NULL;
571 mutex_lock(&ha->vport_lock);
572 clear_bit(que_id, ha->rsp_qid_map);
573 mutex_unlock(&ha->vport_lock);
574 }
575 kfree(rsp);
576 rsp = NULL;
577 }
578
579 int
580 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
581 {
582 int ret = QLA_SUCCESS;
583
584 if (req && vha->flags.qpairs_req_created) {
585 req->options |= BIT_0;
586 ret = qla25xx_init_req_que(vha, req);
587 if (ret != QLA_SUCCESS)
588 return QLA_FUNCTION_FAILED;
589
590 qla25xx_free_req_que(vha, req);
591 }
592
593 return ret;
594 }
595
596 int
597 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
598 {
599 int ret = QLA_SUCCESS;
600
601 if (rsp && vha->flags.qpairs_rsp_created) {
602 rsp->options |= BIT_0;
603 ret = qla25xx_init_rsp_que(vha, rsp);
604 if (ret != QLA_SUCCESS)
605 return QLA_FUNCTION_FAILED;
606
607 qla25xx_free_rsp_que(vha, rsp);
608 }
609
610 return ret;
611 }
612
613 /* Delete all queues for a given vhost */
614 int
615 qla25xx_delete_queues(struct scsi_qla_host *vha)
616 {
617 int cnt, ret = 0;
618 struct req_que *req = NULL;
619 struct rsp_que *rsp = NULL;
620 struct qla_hw_data *ha = vha->hw;
621 struct qla_qpair *qpair, *tqpair;
622
623 if (ql2xmqsupport || ql2xnvmeenable) {
624 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
625 qp_list_elem)
626 qla2xxx_delete_qpair(vha, qpair);
627 } else {
628 /* Delete request queues */
629 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
630 req = ha->req_q_map[cnt];
631 if (req && test_bit(cnt, ha->req_qid_map)) {
632 ret = qla25xx_delete_req_que(vha, req);
633 if (ret != QLA_SUCCESS) {
634 ql_log(ql_log_warn, vha, 0x00ea,
635 "Couldn't delete req que %d.\n",
636 req->id);
637 return ret;
638 }
639 }
640 }
641
642 /* Delete response queues */
643 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
644 rsp = ha->rsp_q_map[cnt];
645 if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
646 ret = qla25xx_delete_rsp_que(vha, rsp);
647 if (ret != QLA_SUCCESS) {
648 ql_log(ql_log_warn, vha, 0x00eb,
649 "Couldn't delete rsp que %d.\n",
650 rsp->id);
651 return ret;
652 }
653 }
654 }
655 }
656
657 return ret;
658 }
659
660 int
661 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
662 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp)
663 {
664 int ret = 0;
665 struct req_que *req = NULL;
666 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
667 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
668 uint16_t que_id = 0;
669 device_reg_t *reg;
670 uint32_t cnt;
671
672 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
673 if (req == NULL) {
674 ql_log(ql_log_fatal, base_vha, 0x00d9,
675 "Failed to allocate memory for request queue.\n");
676 goto failed;
677 }
678
679 req->length = REQUEST_ENTRY_CNT_24XX;
680 req->ring = dma_alloc_coherent(&ha->pdev->dev,
681 (req->length + 1) * sizeof(request_t),
682 &req->dma, GFP_KERNEL);
683 if (req->ring == NULL) {
684 ql_log(ql_log_fatal, base_vha, 0x00da,
685 "Failed to allocate memory for request_ring.\n");
686 goto que_failed;
687 }
688
689 ret = qla2x00_alloc_outstanding_cmds(ha, req);
690 if (ret != QLA_SUCCESS)
691 goto que_failed;
692
693 mutex_lock(&ha->mq_lock);
694 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
695 if (que_id >= ha->max_req_queues) {
696 mutex_unlock(&ha->mq_lock);
697 ql_log(ql_log_warn, base_vha, 0x00db,
698 "No resources to create additional request queue.\n");
699 goto que_failed;
700 }
701 set_bit(que_id, ha->req_qid_map);
702 ha->req_q_map[que_id] = req;
703 req->rid = rid;
704 req->vp_idx = vp_idx;
705 req->qos = qos;
706
707 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
708 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
709 que_id, req->rid, req->vp_idx, req->qos);
710 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
711 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
712 que_id, req->rid, req->vp_idx, req->qos);
713 if (rsp_que < 0)
714 req->rsp = NULL;
715 else
716 req->rsp = ha->rsp_q_map[rsp_que];
717 /* Use alternate PCI bus number */
718 if (MSB(req->rid))
719 options |= BIT_4;
720 /* Use alternate PCI devfn */
721 if (LSB(req->rid))
722 options |= BIT_5;
723 req->options = options;
724
725 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
726 "options=0x%x.\n", req->options);
727 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
728 "options=0x%x.\n", req->options);
729 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
730 req->outstanding_cmds[cnt] = NULL;
731 req->current_outstanding_cmd = 1;
732
733 req->ring_ptr = req->ring;
734 req->ring_index = 0;
735 req->cnt = req->length;
736 req->id = que_id;
737 reg = ISP_QUE_REG(ha, que_id);
738 req->req_q_in = &reg->isp25mq.req_q_in;
739 req->req_q_out = &reg->isp25mq.req_q_out;
740 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
741 req->out_ptr = (void *)(req->ring + req->length);
742 mutex_unlock(&ha->mq_lock);
743 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
744 "ring_ptr=%p ring_index=%d, "
745 "cnt=%d id=%d max_q_depth=%d.\n",
746 req->ring_ptr, req->ring_index,
747 req->cnt, req->id, req->max_q_depth);
748 ql_dbg(ql_dbg_init, base_vha, 0x00de,
749 "ring_ptr=%p ring_index=%d, "
750 "cnt=%d id=%d max_q_depth=%d.\n",
751 req->ring_ptr, req->ring_index, req->cnt,
752 req->id, req->max_q_depth);
753
754 if (startqp) {
755 ret = qla25xx_init_req_que(base_vha, req);
756 if (ret != QLA_SUCCESS) {
757 ql_log(ql_log_fatal, base_vha, 0x00df,
758 "%s failed.\n", __func__);
759 mutex_lock(&ha->mq_lock);
760 clear_bit(que_id, ha->req_qid_map);
761 mutex_unlock(&ha->mq_lock);
762 goto que_failed;
763 }
764 vha->flags.qpairs_req_created = 1;
765 }
766
767 return req->id;
768
769 que_failed:
770 qla25xx_free_req_que(base_vha, req);
771 failed:
772 return 0;
773 }
774
775 static void qla_do_work(struct work_struct *work)
776 {
777 unsigned long flags;
778 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
779 struct scsi_qla_host *vha;
780 struct qla_hw_data *ha = qpair->hw;
781
782 spin_lock_irqsave(&qpair->qp_lock, flags);
783 vha = pci_get_drvdata(ha->pdev);
784 qla24xx_process_response_queue(vha, qpair->rsp);
785 spin_unlock_irqrestore(&qpair->qp_lock, flags);
786
787 }
788
789 /* create response queue */
790 int
791 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
792 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp)
793 {
794 int ret = 0;
795 struct rsp_que *rsp = NULL;
796 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
797 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
798 uint16_t que_id = 0;
799 device_reg_t *reg;
800
801 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
802 if (rsp == NULL) {
803 ql_log(ql_log_warn, base_vha, 0x0066,
804 "Failed to allocate memory for response queue.\n");
805 goto failed;
806 }
807
808 rsp->length = RESPONSE_ENTRY_CNT_MQ;
809 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
810 (rsp->length + 1) * sizeof(response_t),
811 &rsp->dma, GFP_KERNEL);
812 if (rsp->ring == NULL) {
813 ql_log(ql_log_warn, base_vha, 0x00e1,
814 "Failed to allocate memory for response ring.\n");
815 goto que_failed;
816 }
817
818 mutex_lock(&ha->mq_lock);
819 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
820 if (que_id >= ha->max_rsp_queues) {
821 mutex_unlock(&ha->mq_lock);
822 ql_log(ql_log_warn, base_vha, 0x00e2,
823 "No resources to create additional request queue.\n");
824 goto que_failed;
825 }
826 set_bit(que_id, ha->rsp_qid_map);
827
828 rsp->msix = qpair->msix;
829
830 ha->rsp_q_map[que_id] = rsp;
831 rsp->rid = rid;
832 rsp->vp_idx = vp_idx;
833 rsp->hw = ha;
834 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
835 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
836 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
837 /* Use alternate PCI bus number */
838 if (MSB(rsp->rid))
839 options |= BIT_4;
840 /* Use alternate PCI devfn */
841 if (LSB(rsp->rid))
842 options |= BIT_5;
843 /* Enable MSIX handshake mode on for uncapable adapters */
844 if (!IS_MSIX_NACK_CAPABLE(ha))
845 options |= BIT_6;
846
847 /* Set option to indicate response queue creation */
848 options |= BIT_1;
849
850 rsp->options = options;
851 rsp->id = que_id;
852 reg = ISP_QUE_REG(ha, que_id);
853 rsp->rsp_q_in = &reg->isp25mq.rsp_q_in;
854 rsp->rsp_q_out = &reg->isp25mq.rsp_q_out;
855 rsp->in_ptr = (void *)(rsp->ring + rsp->length);
856 mutex_unlock(&ha->mq_lock);
857 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
858 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
859 rsp->options, rsp->id, rsp->rsp_q_in,
860 rsp->rsp_q_out);
861 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
862 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
863 rsp->options, rsp->id, rsp->rsp_q_in,
864 rsp->rsp_q_out);
865
866 ret = qla25xx_request_irq(ha, qpair, qpair->msix,
867 QLA_MSIX_QPAIR_MULTIQ_RSP_Q);
868 if (ret)
869 goto que_failed;
870
871 if (startqp) {
872 ret = qla25xx_init_rsp_que(base_vha, rsp);
873 if (ret != QLA_SUCCESS) {
874 ql_log(ql_log_fatal, base_vha, 0x00e7,
875 "%s failed.\n", __func__);
876 mutex_lock(&ha->mq_lock);
877 clear_bit(que_id, ha->rsp_qid_map);
878 mutex_unlock(&ha->mq_lock);
879 goto que_failed;
880 }
881 vha->flags.qpairs_rsp_created = 1;
882 }
883 rsp->req = NULL;
884
885 qla2x00_init_response_q_entries(rsp);
886 if (qpair->hw->wq)
887 INIT_WORK(&qpair->q_work, qla_do_work);
888 return rsp->id;
889
890 que_failed:
891 qla25xx_free_rsp_que(base_vha, rsp);
892 failed:
893 return 0;
894 }
895
896 static void qla_ctrlvp_sp_done(void *s, int res)
897 {
898 struct srb *sp = s;
899
900 complete(&sp->comp);
901 /* don't free sp here. Let the caller do the free */
902 }
903
904 /**
905 * qla24xx_control_vp() - Enable a virtual port for given host
906 * @vha: adapter block pointer
907 * @cmd: command type to be sent for enable virtual port
908 *
909 * Return: qla2xxx local function return status code.
910 */
911 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
912 {
913 int rval = QLA_MEMORY_ALLOC_FAILED;
914 struct qla_hw_data *ha = vha->hw;
915 int vp_index = vha->vp_idx;
916 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
917 srb_t *sp;
918
919 ql_dbg(ql_dbg_vport, vha, 0x10c1,
920 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
921
922 if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
923 return QLA_PARAMETER_ERROR;
924
925 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
926 if (!sp)
927 goto done;
928
929 sp->type = SRB_CTRL_VP;
930 sp->name = "ctrl_vp";
931 sp->done = qla_ctrlvp_sp_done;
932 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
933 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
934 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
935 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
936
937 rval = qla2x00_start_sp(sp);
938 if (rval != QLA_SUCCESS) {
939 ql_dbg(ql_dbg_async, vha, 0xffff,
940 "%s: %s Failed submission. %x.\n",
941 __func__, sp->name, rval);
942 goto done_free_sp;
943 }
944
945 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
946 sp->name, sp->handle);
947
948 wait_for_completion(&sp->comp);
949 rval = sp->rc;
950 switch (rval) {
951 case QLA_FUNCTION_TIMEOUT:
952 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
953 __func__, sp->name, rval);
954 break;
955 case QLA_SUCCESS:
956 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
957 __func__, sp->name);
958 goto done_free_sp;
959 default:
960 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
961 __func__, sp->name, rval);
962 goto done_free_sp;
963 }
964 done:
965 return rval;
966
967 done_free_sp:
968 sp->free(sp);
969 return rval;
970 }
Linux with added FPC-III support