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blk-mq: always free hctx after request queue is freed
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_mid.c
blob099d8e9851cb616608f10b82111402127dfff38d
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 = QLA_SUCCESS;
156 fc_port_t *fcport;
157
158 if (vha->hw->flags.fw_started)
159 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
160
161 atomic_set(&vha->loop_state, LOOP_DOWN);
162 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
163 list_for_each_entry(fcport, &vha->vp_fcports, list)
164 fcport->logout_on_delete = 0;
165
166 qla2x00_mark_all_devices_lost(vha, 0);
167
168 /* Remove port id from vp target map */
169 spin_lock_irqsave(&vha->hw->hardware_lock, flags);
170 qlt_update_vp_map(vha, RESET_AL_PA);
171 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
172
173 qla2x00_mark_vp_devices_dead(vha);
174 atomic_set(&vha->vp_state, VP_FAILED);
175 vha->flags.management_server_logged_in = 0;
176 if (ret == QLA_SUCCESS) {
177 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
178 } else {
179 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
180 return -1;
181 }
182 return 0;
183 }
184
185 int
186 qla24xx_enable_vp(scsi_qla_host_t *vha)
187 {
188 int ret;
189 struct qla_hw_data *ha = vha->hw;
190 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
191
192 /* Check if physical ha port is Up */
193 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
194 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
195 !(ha->current_topology & ISP_CFG_F)) {
196 vha->vp_err_state = VP_ERR_PORTDWN;
197 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
198 ql_dbg(ql_dbg_taskm, vha, 0x800b,
199 "%s skip enable. loop_state %x topo %x\n",
200 __func__, base_vha->loop_state.counter,
201 ha->current_topology);
202
203 goto enable_failed;
204 }
205
206 /* Initialize the new vport unless it is a persistent port */
207 mutex_lock(&ha->vport_lock);
208 ret = qla24xx_modify_vp_config(vha);
209 mutex_unlock(&ha->vport_lock);
210
211 if (ret != QLA_SUCCESS) {
212 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
213 goto enable_failed;
214 }
215
216 ql_dbg(ql_dbg_taskm, vha, 0x801a,
217 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
218 return 0;
219
220 enable_failed:
221 ql_dbg(ql_dbg_taskm, vha, 0x801b,
222 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
223 return 1;
224 }
225
226 static void
227 qla24xx_configure_vp(scsi_qla_host_t *vha)
228 {
229 struct fc_vport *fc_vport;
230 int ret;
231
232 fc_vport = vha->fc_vport;
233
234 ql_dbg(ql_dbg_vport, vha, 0xa002,
235 "%s: change request #3.\n", __func__);
236 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
237 if (ret != QLA_SUCCESS) {
238 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
239 "receiving of RSCN requests: 0x%x.\n", ret);
240 return;
241 } else {
242 /* Corresponds to SCR enabled */
243 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
244 }
245
246 vha->flags.online = 1;
247 if (qla24xx_configure_vhba(vha))
248 return;
249
250 atomic_set(&vha->vp_state, VP_ACTIVE);
251 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
252 }
253
254 void
255 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
256 {
257 scsi_qla_host_t *vha;
258 struct qla_hw_data *ha = rsp->hw;
259 int i = 0;
260 unsigned long flags;
261
262 spin_lock_irqsave(&ha->vport_slock, flags);
263 list_for_each_entry(vha, &ha->vp_list, list) {
264 if (vha->vp_idx) {
265 atomic_inc(&vha->vref_count);
266 spin_unlock_irqrestore(&ha->vport_slock, flags);
267
268 switch (mb[0]) {
269 case MBA_LIP_OCCURRED:
270 case MBA_LOOP_UP:
271 case MBA_LOOP_DOWN:
272 case MBA_LIP_RESET:
273 case MBA_POINT_TO_POINT:
274 case MBA_CHG_IN_CONNECTION:
275 ql_dbg(ql_dbg_async, vha, 0x5024,
276 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
277 i, *mb, vha);
278 qla2x00_async_event(vha, rsp, mb);
279 break;
280 case MBA_PORT_UPDATE:
281 case MBA_RSCN_UPDATE:
282 if ((mb[3] & 0xff) == vha->vp_idx) {
283 ql_dbg(ql_dbg_async, vha, 0x5024,
284 "Async_event for VP[%d], mb=0x%x vha=%p\n",
285 i, *mb, vha);
286 qla2x00_async_event(vha, rsp, mb);
287 }
288 break;
289 }
290
291 spin_lock_irqsave(&ha->vport_slock, flags);
292 atomic_dec(&vha->vref_count);
293 wake_up(&vha->vref_waitq);
294 }
295 i++;
296 }
297 spin_unlock_irqrestore(&ha->vport_slock, flags);
298 }
299
300 int
301 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
302 {
303 /*
304 * Physical port will do most of the abort and recovery work. We can
305 * just treat it as a loop down
306 */
307 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
308 atomic_set(&vha->loop_state, LOOP_DOWN);
309 qla2x00_mark_all_devices_lost(vha, 0);
310 } else {
311 if (!atomic_read(&vha->loop_down_timer))
312 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
313 }
314
315 /*
316 * To exclusively reset vport, we need to log it out first. Note: this
317 * control_vp can fail if ISP reset is already issued, this is
318 * expected, as the vp would be already logged out due to ISP reset.
319 */
320 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
321 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
322
323 ql_dbg(ql_dbg_taskm, vha, 0x801d,
324 "Scheduling enable of Vport %d.\n", vha->vp_idx);
325 return qla24xx_enable_vp(vha);
326 }
327
328 static int
329 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
330 {
331 struct qla_hw_data *ha = vha->hw;
332 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
333
334 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
335 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
336
337 /* Check if Fw is ready to configure VP first */
338 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
339 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
340 /* VP acquired. complete port configuration */
341 ql_dbg(ql_dbg_dpc, vha, 0x4014,
342 "Configure VP scheduled.\n");
343 qla24xx_configure_vp(vha);
344 ql_dbg(ql_dbg_dpc, vha, 0x4015,
345 "Configure VP end.\n");
346 return 0;
347 }
348 }
349
350 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
351 ql_dbg(ql_dbg_dpc, vha, 0x4016,
352 "FCPort update scheduled.\n");
353 qla2x00_update_fcports(vha);
354 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
355 ql_dbg(ql_dbg_dpc, vha, 0x4017,
356 "FCPort update end.\n");
357 }
358
359 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
360 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
361 atomic_read(&vha->loop_state) != LOOP_DOWN) {
362
363 if (!vha->relogin_jif ||
364 time_after_eq(jiffies, vha->relogin_jif)) {
365 vha->relogin_jif = jiffies + HZ;
366 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
367
368 ql_dbg(ql_dbg_dpc, vha, 0x4018,
369 "Relogin needed scheduled.\n");
370 qla24xx_post_relogin_work(vha);
371 }
372 }
373
374 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
375 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
376 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
377 }
378
379 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
380 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
381 ql_dbg(ql_dbg_dpc, vha, 0x401a,
382 "Loop resync scheduled.\n");
383 qla2x00_loop_resync(vha);
384 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
385 ql_dbg(ql_dbg_dpc, vha, 0x401b,
386 "Loop resync end.\n");
387 }
388 }
389
390 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
391 "Exiting %s.\n", __func__);
392 return 0;
393 }
394
395 void
396 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
397 {
398 struct qla_hw_data *ha = vha->hw;
399 scsi_qla_host_t *vp;
400 unsigned long flags = 0;
401
402 if (vha->vp_idx)
403 return;
404 if (list_empty(&ha->vp_list))
405 return;
406
407 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
408
409 if (!(ha->current_topology & ISP_CFG_F))
410 return;
411
412 spin_lock_irqsave(&ha->vport_slock, flags);
413 list_for_each_entry(vp, &ha->vp_list, list) {
414 if (vp->vp_idx) {
415 atomic_inc(&vp->vref_count);
416 spin_unlock_irqrestore(&ha->vport_slock, flags);
417
418 qla2x00_do_dpc_vp(vp);
419
420 spin_lock_irqsave(&ha->vport_slock, flags);
421 atomic_dec(&vp->vref_count);
422 }
423 }
424 spin_unlock_irqrestore(&ha->vport_slock, flags);
425 }
426
427 int
428 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
429 {
430 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
431 struct qla_hw_data *ha = base_vha->hw;
432 scsi_qla_host_t *vha;
433 uint8_t port_name[WWN_SIZE];
434
435 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
436 return VPCERR_UNSUPPORTED;
437
438 /* Check up the F/W and H/W support NPIV */
439 if (!ha->flags.npiv_supported)
440 return VPCERR_UNSUPPORTED;
441
442 /* Check up whether npiv supported switch presented */
443 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
444 return VPCERR_NO_FABRIC_SUPP;
445
446 /* Check up unique WWPN */
447 u64_to_wwn(fc_vport->port_name, port_name);
448 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
449 return VPCERR_BAD_WWN;
450 vha = qla24xx_find_vhost_by_name(ha, port_name);
451 if (vha)
452 return VPCERR_BAD_WWN;
453
454 /* Check up max-npiv-supports */
455 if (ha->num_vhosts > ha->max_npiv_vports) {
456 ql_dbg(ql_dbg_vport, vha, 0xa004,
457 "num_vhosts %ud is bigger "
458 "than max_npiv_vports %ud.\n",
459 ha->num_vhosts, ha->max_npiv_vports);
460 return VPCERR_UNSUPPORTED;
461 }
462 return 0;
463 }
464
465 scsi_qla_host_t *
466 qla24xx_create_vhost(struct fc_vport *fc_vport)
467 {
468 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
469 struct qla_hw_data *ha = base_vha->hw;
470 scsi_qla_host_t *vha;
471 struct scsi_host_template *sht = &qla2xxx_driver_template;
472 struct Scsi_Host *host;
473
474 vha = qla2x00_create_host(sht, ha);
475 if (!vha) {
476 ql_log(ql_log_warn, vha, 0xa005,
477 "scsi_host_alloc() failed for vport.\n");
478 return(NULL);
479 }
480
481 host = vha->host;
482 fc_vport->dd_data = vha;
483 /* New host info */
484 u64_to_wwn(fc_vport->node_name, vha->node_name);
485 u64_to_wwn(fc_vport->port_name, vha->port_name);
486
487 vha->fc_vport = fc_vport;
488 vha->device_flags = 0;
489 vha->vp_idx = qla24xx_allocate_vp_id(vha);
490 if (vha->vp_idx > ha->max_npiv_vports) {
491 ql_dbg(ql_dbg_vport, vha, 0xa006,
492 "Couldn't allocate vp_id.\n");
493 goto create_vhost_failed;
494 }
495 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha);
496
497 vha->dpc_flags = 0L;
498
499 /*
500 * To fix the issue of processing a parent's RSCN for the vport before
501 * its SCR is complete.
502 */
503 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
504 atomic_set(&vha->loop_state, LOOP_DOWN);
505 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
506
507 qla2x00_start_timer(vha, WATCH_INTERVAL);
508
509 vha->req = base_vha->req;
510 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled;
511 host->can_queue = base_vha->req->length + 128;
512 host->cmd_per_lun = 3;
513 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
514 host->max_cmd_len = 32;
515 else
516 host->max_cmd_len = MAX_CMDSZ;
517 host->max_channel = MAX_BUSES - 1;
518 host->max_lun = ql2xmaxlun;
519 host->unique_id = host->host_no;
520 host->max_id = ha->max_fibre_devices;
521 host->transportt = qla2xxx_transport_vport_template;
522
523 ql_dbg(ql_dbg_vport, vha, 0xa007,
524 "Detect vport hba %ld at address = %p.\n",
525 vha->host_no, vha);
526
527 vha->flags.init_done = 1;
528
529 mutex_lock(&ha->vport_lock);
530 set_bit(vha->vp_idx, ha->vp_idx_map);
531 ha->cur_vport_count++;
532 mutex_unlock(&ha->vport_lock);
533
534 return vha;
535
536 create_vhost_failed:
537 return NULL;
538 }
539
540 static void
541 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
542 {
543 struct qla_hw_data *ha = vha->hw;
544 uint16_t que_id = req->id;
545
546 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
547 sizeof(request_t), req->ring, req->dma);
548 req->ring = NULL;
549 req->dma = 0;
550 if (que_id) {
551 ha->req_q_map[que_id] = NULL;
552 mutex_lock(&ha->vport_lock);
553 clear_bit(que_id, ha->req_qid_map);
554 mutex_unlock(&ha->vport_lock);
555 }
556 kfree(req->outstanding_cmds);
557 kfree(req);
558 req = NULL;
559 }
560
561 static void
562 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
563 {
564 struct qla_hw_data *ha = vha->hw;
565 uint16_t que_id = rsp->id;
566
567 if (rsp->msix && rsp->msix->have_irq) {
568 free_irq(rsp->msix->vector, rsp->msix->handle);
569 rsp->msix->have_irq = 0;
570 rsp->msix->in_use = 0;
571 rsp->msix->handle = NULL;
572 }
573 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
574 sizeof(response_t), rsp->ring, rsp->dma);
575 rsp->ring = NULL;
576 rsp->dma = 0;
577 if (que_id) {
578 ha->rsp_q_map[que_id] = NULL;
579 mutex_lock(&ha->vport_lock);
580 clear_bit(que_id, ha->rsp_qid_map);
581 mutex_unlock(&ha->vport_lock);
582 }
583 kfree(rsp);
584 rsp = NULL;
585 }
586
587 int
588 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
589 {
590 int ret = QLA_SUCCESS;
591
592 if (req && vha->flags.qpairs_req_created) {
593 req->options |= BIT_0;
594 ret = qla25xx_init_req_que(vha, req);
595 if (ret != QLA_SUCCESS)
596 return QLA_FUNCTION_FAILED;
597
598 qla25xx_free_req_que(vha, req);
599 }
600
601 return ret;
602 }
603
604 int
605 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
606 {
607 int ret = QLA_SUCCESS;
608
609 if (rsp && vha->flags.qpairs_rsp_created) {
610 rsp->options |= BIT_0;
611 ret = qla25xx_init_rsp_que(vha, rsp);
612 if (ret != QLA_SUCCESS)
613 return QLA_FUNCTION_FAILED;
614
615 qla25xx_free_rsp_que(vha, rsp);
616 }
617
618 return ret;
619 }
620
621 /* Delete all queues for a given vhost */
622 int
623 qla25xx_delete_queues(struct scsi_qla_host *vha)
624 {
625 int cnt, ret = 0;
626 struct req_que *req = NULL;
627 struct rsp_que *rsp = NULL;
628 struct qla_hw_data *ha = vha->hw;
629 struct qla_qpair *qpair, *tqpair;
630
631 if (ql2xmqsupport || ql2xnvmeenable) {
632 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
633 qp_list_elem)
634 qla2xxx_delete_qpair(vha, qpair);
635 } else {
636 /* Delete request queues */
637 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
638 req = ha->req_q_map[cnt];
639 if (req && test_bit(cnt, ha->req_qid_map)) {
640 ret = qla25xx_delete_req_que(vha, req);
641 if (ret != QLA_SUCCESS) {
642 ql_log(ql_log_warn, vha, 0x00ea,
643 "Couldn't delete req que %d.\n",
644 req->id);
645 return ret;
646 }
647 }
648 }
649
650 /* Delete response queues */
651 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
652 rsp = ha->rsp_q_map[cnt];
653 if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
654 ret = qla25xx_delete_rsp_que(vha, rsp);
655 if (ret != QLA_SUCCESS) {
656 ql_log(ql_log_warn, vha, 0x00eb,
657 "Couldn't delete rsp que %d.\n",
658 rsp->id);
659 return ret;
660 }
661 }
662 }
663 }
664
665 return ret;
666 }
667
668 int
669 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
670 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp)
671 {
672 int ret = 0;
673 struct req_que *req = NULL;
674 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
675 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
676 uint16_t que_id = 0;
677 device_reg_t *reg;
678 uint32_t cnt;
679
680 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
681 if (req == NULL) {
682 ql_log(ql_log_fatal, base_vha, 0x00d9,
683 "Failed to allocate memory for request queue.\n");
684 goto failed;
685 }
686
687 req->length = REQUEST_ENTRY_CNT_24XX;
688 req->ring = dma_alloc_coherent(&ha->pdev->dev,
689 (req->length + 1) * sizeof(request_t),
690 &req->dma, GFP_KERNEL);
691 if (req->ring == NULL) {
692 ql_log(ql_log_fatal, base_vha, 0x00da,
693 "Failed to allocate memory for request_ring.\n");
694 goto que_failed;
695 }
696
697 ret = qla2x00_alloc_outstanding_cmds(ha, req);
698 if (ret != QLA_SUCCESS)
699 goto que_failed;
700
701 mutex_lock(&ha->mq_lock);
702 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
703 if (que_id >= ha->max_req_queues) {
704 mutex_unlock(&ha->mq_lock);
705 ql_log(ql_log_warn, base_vha, 0x00db,
706 "No resources to create additional request queue.\n");
707 goto que_failed;
708 }
709 set_bit(que_id, ha->req_qid_map);
710 ha->req_q_map[que_id] = req;
711 req->rid = rid;
712 req->vp_idx = vp_idx;
713 req->qos = qos;
714
715 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
716 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
717 que_id, req->rid, req->vp_idx, req->qos);
718 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
719 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
720 que_id, req->rid, req->vp_idx, req->qos);
721 if (rsp_que < 0)
722 req->rsp = NULL;
723 else
724 req->rsp = ha->rsp_q_map[rsp_que];
725 /* Use alternate PCI bus number */
726 if (MSB(req->rid))
727 options |= BIT_4;
728 /* Use alternate PCI devfn */
729 if (LSB(req->rid))
730 options |= BIT_5;
731 req->options = options;
732
733 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
734 "options=0x%x.\n", req->options);
735 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
736 "options=0x%x.\n", req->options);
737 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
738 req->outstanding_cmds[cnt] = NULL;
739 req->current_outstanding_cmd = 1;
740
741 req->ring_ptr = req->ring;
742 req->ring_index = 0;
743 req->cnt = req->length;
744 req->id = que_id;
745 reg = ISP_QUE_REG(ha, que_id);
746 req->req_q_in = &reg->isp25mq.req_q_in;
747 req->req_q_out = &reg->isp25mq.req_q_out;
748 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
749 req->out_ptr = (void *)(req->ring + req->length);
750 mutex_unlock(&ha->mq_lock);
751 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
752 "ring_ptr=%p ring_index=%d, "
753 "cnt=%d id=%d max_q_depth=%d.\n",
754 req->ring_ptr, req->ring_index,
755 req->cnt, req->id, req->max_q_depth);
756 ql_dbg(ql_dbg_init, base_vha, 0x00de,
757 "ring_ptr=%p ring_index=%d, "
758 "cnt=%d id=%d max_q_depth=%d.\n",
759 req->ring_ptr, req->ring_index, req->cnt,
760 req->id, req->max_q_depth);
761
762 if (startqp) {
763 ret = qla25xx_init_req_que(base_vha, req);
764 if (ret != QLA_SUCCESS) {
765 ql_log(ql_log_fatal, base_vha, 0x00df,
766 "%s failed.\n", __func__);
767 mutex_lock(&ha->mq_lock);
768 clear_bit(que_id, ha->req_qid_map);
769 mutex_unlock(&ha->mq_lock);
770 goto que_failed;
771 }
772 vha->flags.qpairs_req_created = 1;
773 }
774
775 return req->id;
776
777 que_failed:
778 qla25xx_free_req_que(base_vha, req);
779 failed:
780 return 0;
781 }
782
783 static void qla_do_work(struct work_struct *work)
784 {
785 unsigned long flags;
786 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
787 struct scsi_qla_host *vha;
788 struct qla_hw_data *ha = qpair->hw;
789
790 spin_lock_irqsave(&qpair->qp_lock, flags);
791 vha = pci_get_drvdata(ha->pdev);
792 qla24xx_process_response_queue(vha, qpair->rsp);
793 spin_unlock_irqrestore(&qpair->qp_lock, flags);
794
795 }
796
797 /* create response queue */
798 int
799 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
800 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp)
801 {
802 int ret = 0;
803 struct rsp_que *rsp = NULL;
804 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
805 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
806 uint16_t que_id = 0;
807 device_reg_t *reg;
808
809 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
810 if (rsp == NULL) {
811 ql_log(ql_log_warn, base_vha, 0x0066,
812 "Failed to allocate memory for response queue.\n");
813 goto failed;
814 }
815
816 rsp->length = RESPONSE_ENTRY_CNT_MQ;
817 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
818 (rsp->length + 1) * sizeof(response_t),
819 &rsp->dma, GFP_KERNEL);
820 if (rsp->ring == NULL) {
821 ql_log(ql_log_warn, base_vha, 0x00e1,
822 "Failed to allocate memory for response ring.\n");
823 goto que_failed;
824 }
825
826 mutex_lock(&ha->mq_lock);
827 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
828 if (que_id >= ha->max_rsp_queues) {
829 mutex_unlock(&ha->mq_lock);
830 ql_log(ql_log_warn, base_vha, 0x00e2,
831 "No resources to create additional request queue.\n");
832 goto que_failed;
833 }
834 set_bit(que_id, ha->rsp_qid_map);
835
836 rsp->msix = qpair->msix;
837
838 ha->rsp_q_map[que_id] = rsp;
839 rsp->rid = rid;
840 rsp->vp_idx = vp_idx;
841 rsp->hw = ha;
842 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
843 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
844 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
845 /* Use alternate PCI bus number */
846 if (MSB(rsp->rid))
847 options |= BIT_4;
848 /* Use alternate PCI devfn */
849 if (LSB(rsp->rid))
850 options |= BIT_5;
851 /* Enable MSIX handshake mode on for uncapable adapters */
852 if (!IS_MSIX_NACK_CAPABLE(ha))
853 options |= BIT_6;
854
855 /* Set option to indicate response queue creation */
856 options |= BIT_1;
857
858 rsp->options = options;
859 rsp->id = que_id;
860 reg = ISP_QUE_REG(ha, que_id);
861 rsp->rsp_q_in = &reg->isp25mq.rsp_q_in;
862 rsp->rsp_q_out = &reg->isp25mq.rsp_q_out;
863 rsp->in_ptr = (void *)(rsp->ring + rsp->length);
864 mutex_unlock(&ha->mq_lock);
865 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
866 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
867 rsp->options, rsp->id, rsp->rsp_q_in,
868 rsp->rsp_q_out);
869 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
870 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
871 rsp->options, rsp->id, rsp->rsp_q_in,
872 rsp->rsp_q_out);
873
874 ret = qla25xx_request_irq(ha, qpair, qpair->msix,
875 QLA_MSIX_QPAIR_MULTIQ_RSP_Q);
876 if (ret)
877 goto que_failed;
878
879 if (startqp) {
880 ret = qla25xx_init_rsp_que(base_vha, rsp);
881 if (ret != QLA_SUCCESS) {
882 ql_log(ql_log_fatal, base_vha, 0x00e7,
883 "%s failed.\n", __func__);
884 mutex_lock(&ha->mq_lock);
885 clear_bit(que_id, ha->rsp_qid_map);
886 mutex_unlock(&ha->mq_lock);
887 goto que_failed;
888 }
889 vha->flags.qpairs_rsp_created = 1;
890 }
891 rsp->req = NULL;
892
893 qla2x00_init_response_q_entries(rsp);
894 if (qpair->hw->wq)
895 INIT_WORK(&qpair->q_work, qla_do_work);
896 return rsp->id;
897
898 que_failed:
899 qla25xx_free_rsp_que(base_vha, rsp);
900 failed:
901 return 0;
902 }
903
904 static void qla_ctrlvp_sp_done(void *s, int res)
905 {
906 struct srb *sp = s;
907
908 complete(&sp->comp);
909 /* don't free sp here. Let the caller do the free */
910 }
911
912 /**
913 * qla24xx_control_vp() - Enable a virtual port for given host
914 * @vha: adapter block pointer
915 * @cmd: command type to be sent for enable virtual port
916 *
917 * Return: qla2xxx local function return status code.
918 */
919 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
920 {
921 int rval = QLA_MEMORY_ALLOC_FAILED;
922 struct qla_hw_data *ha = vha->hw;
923 int vp_index = vha->vp_idx;
924 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
925 srb_t *sp;
926
927 ql_dbg(ql_dbg_vport, vha, 0x10c1,
928 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
929
930 if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
931 return QLA_PARAMETER_ERROR;
932
933 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
934 if (!sp)
935 goto done;
936
937 sp->type = SRB_CTRL_VP;
938 sp->name = "ctrl_vp";
939 sp->done = qla_ctrlvp_sp_done;
940 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
941 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
942 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
943 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
944
945 rval = qla2x00_start_sp(sp);
946 if (rval != QLA_SUCCESS) {
947 ql_dbg(ql_dbg_async, vha, 0xffff,
948 "%s: %s Failed submission. %x.\n",
949 __func__, sp->name, rval);
950 goto done_free_sp;
951 }
952
953 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
954 sp->name, sp->handle);
955
956 wait_for_completion(&sp->comp);
957 rval = sp->rc;
958 switch (rval) {
959 case QLA_FUNCTION_TIMEOUT:
960 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
961 __func__, sp->name, rval);
962 break;
963 case QLA_SUCCESS:
964 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
965 __func__, sp->name);
966 goto done_free_sp;
967 default:
968 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
969 __func__, sp->name, rval);
970 goto done_free_sp;
971 }
972 done:
973 return rval;
974
975 done_free_sp:
976 sp->free(sp);
977 return rval;
978 }
Linux with added FPC-III support