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Merge tag 'regmap-fix-v5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_mid.c
blobc7caf322f445bea8659f4e36877f8d6e6c9cb7ee
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic Fibre Channel HBA Driver
4 * Copyright (c) 2003-2014 QLogic Corporation
5 */
6 #include "qla_def.h"
7 #include "qla_gbl.h"
8 #include "qla_target.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
19 void
20 qla2x00_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
28 static uint32_t
29 qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
30 {
31 uint32_t vp_id;
32 struct qla_hw_data *ha = vha->hw;
33 unsigned long flags;
34
35 /* Find an empty slot and assign an vp_id */
36 mutex_lock(&ha->vport_lock);
37 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
38 if (vp_id > ha->max_npiv_vports) {
39 ql_dbg(ql_dbg_vport, vha, 0xa000,
40 "vp_id %d is bigger than max-supported %d.\n",
41 vp_id, ha->max_npiv_vports);
42 mutex_unlock(&ha->vport_lock);
43 return vp_id;
44 }
45
46 set_bit(vp_id, ha->vp_idx_map);
47 ha->num_vhosts++;
48 vha->vp_idx = vp_id;
49
50 spin_lock_irqsave(&ha->vport_slock, flags);
51 list_add_tail(&vha->list, &ha->vp_list);
52 spin_unlock_irqrestore(&ha->vport_slock, flags);
53
54 spin_lock_irqsave(&ha->hardware_lock, flags);
55 qlt_update_vp_map(vha, SET_VP_IDX);
56 spin_unlock_irqrestore(&ha->hardware_lock, flags);
57
58 mutex_unlock(&ha->vport_lock);
59 return vp_id;
60 }
61
62 void
63 qla24xx_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 u8 i;
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 for (i = 0; i < 10; i++) {
79 if (wait_event_timeout(vha->vref_waitq,
80 !atomic_read(&vha->vref_count), HZ) > 0)
81 break;
82 }
83
84 spin_lock_irqsave(&ha->vport_slock, flags);
85 if (atomic_read(&vha->vref_count)) {
86 ql_dbg(ql_dbg_vport, vha, 0xfffa,
87 "vha->vref_count=%u timeout\n", vha->vref_count.counter);
88 vha->vref_count = (atomic_t)ATOMIC_INIT(0);
89 }
90 list_del(&vha->list);
91 qlt_update_vp_map(vha, RESET_VP_IDX);
92 spin_unlock_irqrestore(&ha->vport_slock, flags);
93
94 vp_id = vha->vp_idx;
95 ha->num_vhosts--;
96 clear_bit(vp_id, ha->vp_idx_map);
97
98 mutex_unlock(&ha->vport_lock);
99 }
100
101 static scsi_qla_host_t *
102 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
103 {
104 scsi_qla_host_t *vha;
105 struct scsi_qla_host *tvha;
106 unsigned long flags;
107
108 spin_lock_irqsave(&ha->vport_slock, flags);
109 /* Locate matching device in database. */
110 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
111 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
112 spin_unlock_irqrestore(&ha->vport_slock, flags);
113 return vha;
114 }
115 }
116 spin_unlock_irqrestore(&ha->vport_slock, flags);
117 return NULL;
118 }
119
120 /*
121 * qla2x00_mark_vp_devices_dead
122 * Updates fcport state when device goes offline.
123 *
124 * Input:
125 * ha = adapter block pointer.
126 * fcport = port structure pointer.
127 *
128 * Return:
129 * None.
130 *
131 * Context:
132 */
133 static void
134 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
135 {
136 /*
137 * !!! NOTE !!!
138 * This function, if called in contexts other than vp create, disable
139 * or delete, please make sure this is synchronized with the
140 * delete thread.
141 */
142 fc_port_t *fcport;
143
144 list_for_each_entry(fcport, &vha->vp_fcports, list) {
145 ql_dbg(ql_dbg_vport, vha, 0xa001,
146 "Marking port dead, loop_id=0x%04x : %x.\n",
147 fcport->loop_id, fcport->vha->vp_idx);
148
149 qla2x00_mark_device_lost(vha, fcport, 0);
150 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
151 }
152 }
153
154 int
155 qla24xx_disable_vp(scsi_qla_host_t *vha)
156 {
157 unsigned long flags;
158 int ret = QLA_SUCCESS;
159 fc_port_t *fcport;
160
161 if (vha->hw->flags.fw_started)
162 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
163
164 atomic_set(&vha->loop_state, LOOP_DOWN);
165 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
166 list_for_each_entry(fcport, &vha->vp_fcports, list)
167 fcport->logout_on_delete = 0;
168
169 qla2x00_mark_all_devices_lost(vha);
170
171 /* Remove port id from vp target map */
172 spin_lock_irqsave(&vha->hw->hardware_lock, flags);
173 qlt_update_vp_map(vha, RESET_AL_PA);
174 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
175
176 qla2x00_mark_vp_devices_dead(vha);
177 atomic_set(&vha->vp_state, VP_FAILED);
178 vha->flags.management_server_logged_in = 0;
179 if (ret == QLA_SUCCESS) {
180 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
181 } else {
182 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
183 return -1;
184 }
185 return 0;
186 }
187
188 int
189 qla24xx_enable_vp(scsi_qla_host_t *vha)
190 {
191 int ret;
192 struct qla_hw_data *ha = vha->hw;
193 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
194
195 /* Check if physical ha port is Up */
196 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
197 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
198 !(ha->current_topology & ISP_CFG_F)) {
199 vha->vp_err_state = VP_ERR_PORTDWN;
200 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
201 ql_dbg(ql_dbg_taskm, vha, 0x800b,
202 "%s skip enable. loop_state %x topo %x\n",
203 __func__, base_vha->loop_state.counter,
204 ha->current_topology);
205
206 goto enable_failed;
207 }
208
209 /* Initialize the new vport unless it is a persistent port */
210 mutex_lock(&ha->vport_lock);
211 ret = qla24xx_modify_vp_config(vha);
212 mutex_unlock(&ha->vport_lock);
213
214 if (ret != QLA_SUCCESS) {
215 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
216 goto enable_failed;
217 }
218
219 ql_dbg(ql_dbg_taskm, vha, 0x801a,
220 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
221 return 0;
222
223 enable_failed:
224 ql_dbg(ql_dbg_taskm, vha, 0x801b,
225 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
226 return 1;
227 }
228
229 static void
230 qla24xx_configure_vp(scsi_qla_host_t *vha)
231 {
232 struct fc_vport *fc_vport;
233 int ret;
234
235 fc_vport = vha->fc_vport;
236
237 ql_dbg(ql_dbg_vport, vha, 0xa002,
238 "%s: change request #3.\n", __func__);
239 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
240 if (ret != QLA_SUCCESS) {
241 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
242 "receiving of RSCN requests: 0x%x.\n", ret);
243 return;
244 } else {
245 /* Corresponds to SCR enabled */
246 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
247 }
248
249 vha->flags.online = 1;
250 if (qla24xx_configure_vhba(vha))
251 return;
252
253 atomic_set(&vha->vp_state, VP_ACTIVE);
254 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
255 }
256
257 void
258 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
259 {
260 scsi_qla_host_t *vha;
261 struct qla_hw_data *ha = rsp->hw;
262 int i = 0;
263 unsigned long flags;
264
265 spin_lock_irqsave(&ha->vport_slock, flags);
266 list_for_each_entry(vha, &ha->vp_list, list) {
267 if (vha->vp_idx) {
268 if (test_bit(VPORT_DELETE, &vha->dpc_flags))
269 continue;
270
271 atomic_inc(&vha->vref_count);
272 spin_unlock_irqrestore(&ha->vport_slock, flags);
273
274 switch (mb[0]) {
275 case MBA_LIP_OCCURRED:
276 case MBA_LOOP_UP:
277 case MBA_LOOP_DOWN:
278 case MBA_LIP_RESET:
279 case MBA_POINT_TO_POINT:
280 case MBA_CHG_IN_CONNECTION:
281 ql_dbg(ql_dbg_async, vha, 0x5024,
282 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
283 i, *mb, vha);
284 qla2x00_async_event(vha, rsp, mb);
285 break;
286 case MBA_PORT_UPDATE:
287 case MBA_RSCN_UPDATE:
288 if ((mb[3] & 0xff) == vha->vp_idx) {
289 ql_dbg(ql_dbg_async, vha, 0x5024,
290 "Async_event for VP[%d], mb=0x%x vha=%p\n",
291 i, *mb, vha);
292 qla2x00_async_event(vha, rsp, mb);
293 }
294 break;
295 }
296
297 spin_lock_irqsave(&ha->vport_slock, flags);
298 atomic_dec(&vha->vref_count);
299 wake_up(&vha->vref_waitq);
300 }
301 i++;
302 }
303 spin_unlock_irqrestore(&ha->vport_slock, flags);
304 }
305
306 int
307 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
308 {
309 fc_port_t *fcport;
310
311 /*
312 * To exclusively reset vport, we need to log it out first.
313 * Note: This control_vp can fail if ISP reset is already
314 * issued, this is expected, as the vp would be already
315 * logged out due to ISP reset.
316 */
317 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
318 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
319 list_for_each_entry(fcport, &vha->vp_fcports, list)
320 fcport->logout_on_delete = 0;
321 }
322
323 /*
324 * Physical port will do most of the abort and recovery work. We can
325 * just treat it as a loop down
326 */
327 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
328 atomic_set(&vha->loop_state, LOOP_DOWN);
329 qla2x00_mark_all_devices_lost(vha);
330 } else {
331 if (!atomic_read(&vha->loop_down_timer))
332 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
333 }
334
335 ql_dbg(ql_dbg_taskm, vha, 0x801d,
336 "Scheduling enable of Vport %d.\n", vha->vp_idx);
337
338 return qla24xx_enable_vp(vha);
339 }
340
341 static int
342 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
343 {
344 struct qla_hw_data *ha = vha->hw;
345 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
346
347 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
348 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
349
350 /* Check if Fw is ready to configure VP first */
351 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
352 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
353 /* VP acquired. complete port configuration */
354 ql_dbg(ql_dbg_dpc, vha, 0x4014,
355 "Configure VP scheduled.\n");
356 qla24xx_configure_vp(vha);
357 ql_dbg(ql_dbg_dpc, vha, 0x4015,
358 "Configure VP end.\n");
359 return 0;
360 }
361 }
362
363 if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) {
364 if (atomic_read(&vha->loop_state) == LOOP_READY) {
365 qla24xx_process_purex_list(&vha->purex_list);
366 clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
367 }
368 }
369
370 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
371 ql_dbg(ql_dbg_dpc, vha, 0x4016,
372 "FCPort update scheduled.\n");
373 qla2x00_update_fcports(vha);
374 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
375 ql_dbg(ql_dbg_dpc, vha, 0x4017,
376 "FCPort update end.\n");
377 }
378
379 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
380 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
381 atomic_read(&vha->loop_state) != LOOP_DOWN) {
382
383 if (!vha->relogin_jif ||
384 time_after_eq(jiffies, vha->relogin_jif)) {
385 vha->relogin_jif = jiffies + HZ;
386 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
387
388 ql_dbg(ql_dbg_dpc, vha, 0x4018,
389 "Relogin needed scheduled.\n");
390 qla24xx_post_relogin_work(vha);
391 }
392 }
393
394 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
395 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
396 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
397 }
398
399 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
400 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
401 ql_dbg(ql_dbg_dpc, vha, 0x401a,
402 "Loop resync scheduled.\n");
403 qla2x00_loop_resync(vha);
404 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
405 ql_dbg(ql_dbg_dpc, vha, 0x401b,
406 "Loop resync end.\n");
407 }
408 }
409
410 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
411 "Exiting %s.\n", __func__);
412 return 0;
413 }
414
415 void
416 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
417 {
418 struct qla_hw_data *ha = vha->hw;
419 scsi_qla_host_t *vp;
420 unsigned long flags = 0;
421
422 if (vha->vp_idx)
423 return;
424 if (list_empty(&ha->vp_list))
425 return;
426
427 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
428
429 if (!(ha->current_topology & ISP_CFG_F))
430 return;
431
432 spin_lock_irqsave(&ha->vport_slock, flags);
433 list_for_each_entry(vp, &ha->vp_list, list) {
434 if (vp->vp_idx) {
435 atomic_inc(&vp->vref_count);
436 spin_unlock_irqrestore(&ha->vport_slock, flags);
437
438 qla2x00_do_dpc_vp(vp);
439
440 spin_lock_irqsave(&ha->vport_slock, flags);
441 atomic_dec(&vp->vref_count);
442 }
443 }
444 spin_unlock_irqrestore(&ha->vport_slock, flags);
445 }
446
447 int
448 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
449 {
450 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
451 struct qla_hw_data *ha = base_vha->hw;
452 scsi_qla_host_t *vha;
453 uint8_t port_name[WWN_SIZE];
454
455 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
456 return VPCERR_UNSUPPORTED;
457
458 /* Check up the F/W and H/W support NPIV */
459 if (!ha->flags.npiv_supported)
460 return VPCERR_UNSUPPORTED;
461
462 /* Check up whether npiv supported switch presented */
463 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
464 return VPCERR_NO_FABRIC_SUPP;
465
466 /* Check up unique WWPN */
467 u64_to_wwn(fc_vport->port_name, port_name);
468 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
469 return VPCERR_BAD_WWN;
470 vha = qla24xx_find_vhost_by_name(ha, port_name);
471 if (vha)
472 return VPCERR_BAD_WWN;
473
474 /* Check up max-npiv-supports */
475 if (ha->num_vhosts > ha->max_npiv_vports) {
476 ql_dbg(ql_dbg_vport, vha, 0xa004,
477 "num_vhosts %ud is bigger "
478 "than max_npiv_vports %ud.\n",
479 ha->num_vhosts, ha->max_npiv_vports);
480 return VPCERR_UNSUPPORTED;
481 }
482 return 0;
483 }
484
485 scsi_qla_host_t *
486 qla24xx_create_vhost(struct fc_vport *fc_vport)
487 {
488 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
489 struct qla_hw_data *ha = base_vha->hw;
490 scsi_qla_host_t *vha;
491 struct scsi_host_template *sht = &qla2xxx_driver_template;
492 struct Scsi_Host *host;
493
494 vha = qla2x00_create_host(sht, ha);
495 if (!vha) {
496 ql_log(ql_log_warn, vha, 0xa005,
497 "scsi_host_alloc() failed for vport.\n");
498 return(NULL);
499 }
500
501 host = vha->host;
502 fc_vport->dd_data = vha;
503 /* New host info */
504 u64_to_wwn(fc_vport->node_name, vha->node_name);
505 u64_to_wwn(fc_vport->port_name, vha->port_name);
506
507 vha->fc_vport = fc_vport;
508 vha->device_flags = 0;
509 vha->vp_idx = qla24xx_allocate_vp_id(vha);
510 if (vha->vp_idx > ha->max_npiv_vports) {
511 ql_dbg(ql_dbg_vport, vha, 0xa006,
512 "Couldn't allocate vp_id.\n");
513 goto create_vhost_failed;
514 }
515 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha);
516
517 vha->dpc_flags = 0L;
518 ha->dpc_active = 0;
519 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
520 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
521
522 /*
523 * To fix the issue of processing a parent's RSCN for the vport before
524 * its SCR is complete.
525 */
526 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
527 atomic_set(&vha->loop_state, LOOP_DOWN);
528 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
529
530 qla2x00_start_timer(vha, WATCH_INTERVAL);
531
532 vha->req = base_vha->req;
533 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled;
534 host->can_queue = base_vha->req->length + 128;
535 host->cmd_per_lun = 3;
536 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
537 host->max_cmd_len = 32;
538 else
539 host->max_cmd_len = MAX_CMDSZ;
540 host->max_channel = MAX_BUSES - 1;
541 host->max_lun = ql2xmaxlun;
542 host->unique_id = host->host_no;
543 host->max_id = ha->max_fibre_devices;
544 host->transportt = qla2xxx_transport_vport_template;
545
546 ql_dbg(ql_dbg_vport, vha, 0xa007,
547 "Detect vport hba %ld at address = %p.\n",
548 vha->host_no, vha);
549
550 vha->flags.init_done = 1;
551
552 mutex_lock(&ha->vport_lock);
553 set_bit(vha->vp_idx, ha->vp_idx_map);
554 ha->cur_vport_count++;
555 mutex_unlock(&ha->vport_lock);
556
557 return vha;
558
559 create_vhost_failed:
560 return NULL;
561 }
562
563 static void
564 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
565 {
566 struct qla_hw_data *ha = vha->hw;
567 uint16_t que_id = req->id;
568
569 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
570 sizeof(request_t), req->ring, req->dma);
571 req->ring = NULL;
572 req->dma = 0;
573 if (que_id) {
574 ha->req_q_map[que_id] = NULL;
575 mutex_lock(&ha->vport_lock);
576 clear_bit(que_id, ha->req_qid_map);
577 mutex_unlock(&ha->vport_lock);
578 }
579 kfree(req->outstanding_cmds);
580 kfree(req);
581 req = NULL;
582 }
583
584 static void
585 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
586 {
587 struct qla_hw_data *ha = vha->hw;
588 uint16_t que_id = rsp->id;
589
590 if (rsp->msix && rsp->msix->have_irq) {
591 free_irq(rsp->msix->vector, rsp->msix->handle);
592 rsp->msix->have_irq = 0;
593 rsp->msix->in_use = 0;
594 rsp->msix->handle = NULL;
595 }
596 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
597 sizeof(response_t), rsp->ring, rsp->dma);
598 rsp->ring = NULL;
599 rsp->dma = 0;
600 if (que_id) {
601 ha->rsp_q_map[que_id] = NULL;
602 mutex_lock(&ha->vport_lock);
603 clear_bit(que_id, ha->rsp_qid_map);
604 mutex_unlock(&ha->vport_lock);
605 }
606 kfree(rsp);
607 rsp = NULL;
608 }
609
610 int
611 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
612 {
613 int ret = QLA_SUCCESS;
614
615 if (req && vha->flags.qpairs_req_created) {
616 req->options |= BIT_0;
617 ret = qla25xx_init_req_que(vha, req);
618 if (ret != QLA_SUCCESS)
619 return QLA_FUNCTION_FAILED;
620
621 qla25xx_free_req_que(vha, req);
622 }
623
624 return ret;
625 }
626
627 int
628 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
629 {
630 int ret = QLA_SUCCESS;
631
632 if (rsp && vha->flags.qpairs_rsp_created) {
633 rsp->options |= BIT_0;
634 ret = qla25xx_init_rsp_que(vha, rsp);
635 if (ret != QLA_SUCCESS)
636 return QLA_FUNCTION_FAILED;
637
638 qla25xx_free_rsp_que(vha, rsp);
639 }
640
641 return ret;
642 }
643
644 /* Delete all queues for a given vhost */
645 int
646 qla25xx_delete_queues(struct scsi_qla_host *vha)
647 {
648 int cnt, ret = 0;
649 struct req_que *req = NULL;
650 struct rsp_que *rsp = NULL;
651 struct qla_hw_data *ha = vha->hw;
652 struct qla_qpair *qpair, *tqpair;
653
654 if (ql2xmqsupport || ql2xnvmeenable) {
655 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
656 qp_list_elem)
657 qla2xxx_delete_qpair(vha, qpair);
658 } else {
659 /* Delete request queues */
660 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
661 req = ha->req_q_map[cnt];
662 if (req && test_bit(cnt, ha->req_qid_map)) {
663 ret = qla25xx_delete_req_que(vha, req);
664 if (ret != QLA_SUCCESS) {
665 ql_log(ql_log_warn, vha, 0x00ea,
666 "Couldn't delete req que %d.\n",
667 req->id);
668 return ret;
669 }
670 }
671 }
672
673 /* Delete response queues */
674 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
675 rsp = ha->rsp_q_map[cnt];
676 if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
677 ret = qla25xx_delete_rsp_que(vha, rsp);
678 if (ret != QLA_SUCCESS) {
679 ql_log(ql_log_warn, vha, 0x00eb,
680 "Couldn't delete rsp que %d.\n",
681 rsp->id);
682 return ret;
683 }
684 }
685 }
686 }
687
688 return ret;
689 }
690
691 int
692 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
693 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp)
694 {
695 int ret = 0;
696 struct req_que *req = NULL;
697 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
698 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
699 uint16_t que_id = 0;
700 device_reg_t *reg;
701 uint32_t cnt;
702
703 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
704 if (req == NULL) {
705 ql_log(ql_log_fatal, base_vha, 0x00d9,
706 "Failed to allocate memory for request queue.\n");
707 goto failed;
708 }
709
710 req->length = REQUEST_ENTRY_CNT_24XX;
711 req->ring = dma_alloc_coherent(&ha->pdev->dev,
712 (req->length + 1) * sizeof(request_t),
713 &req->dma, GFP_KERNEL);
714 if (req->ring == NULL) {
715 ql_log(ql_log_fatal, base_vha, 0x00da,
716 "Failed to allocate memory for request_ring.\n");
717 goto que_failed;
718 }
719
720 ret = qla2x00_alloc_outstanding_cmds(ha, req);
721 if (ret != QLA_SUCCESS)
722 goto que_failed;
723
724 mutex_lock(&ha->mq_lock);
725 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
726 if (que_id >= ha->max_req_queues) {
727 mutex_unlock(&ha->mq_lock);
728 ql_log(ql_log_warn, base_vha, 0x00db,
729 "No resources to create additional request queue.\n");
730 goto que_failed;
731 }
732 set_bit(que_id, ha->req_qid_map);
733 ha->req_q_map[que_id] = req;
734 req->rid = rid;
735 req->vp_idx = vp_idx;
736 req->qos = qos;
737
738 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
739 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
740 que_id, req->rid, req->vp_idx, req->qos);
741 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
742 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
743 que_id, req->rid, req->vp_idx, req->qos);
744 if (rsp_que < 0)
745 req->rsp = NULL;
746 else
747 req->rsp = ha->rsp_q_map[rsp_que];
748 /* Use alternate PCI bus number */
749 if (MSB(req->rid))
750 options |= BIT_4;
751 /* Use alternate PCI devfn */
752 if (LSB(req->rid))
753 options |= BIT_5;
754 req->options = options;
755
756 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
757 "options=0x%x.\n", req->options);
758 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
759 "options=0x%x.\n", req->options);
760 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
761 req->outstanding_cmds[cnt] = NULL;
762 req->current_outstanding_cmd = 1;
763
764 req->ring_ptr = req->ring;
765 req->ring_index = 0;
766 req->cnt = req->length;
767 req->id = que_id;
768 reg = ISP_QUE_REG(ha, que_id);
769 req->req_q_in = &reg->isp25mq.req_q_in;
770 req->req_q_out = &reg->isp25mq.req_q_out;
771 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
772 req->out_ptr = (uint16_t *)(req->ring + req->length);
773 mutex_unlock(&ha->mq_lock);
774 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
775 "ring_ptr=%p ring_index=%d, "
776 "cnt=%d id=%d max_q_depth=%d.\n",
777 req->ring_ptr, req->ring_index,
778 req->cnt, req->id, req->max_q_depth);
779 ql_dbg(ql_dbg_init, base_vha, 0x00de,
780 "ring_ptr=%p ring_index=%d, "
781 "cnt=%d id=%d max_q_depth=%d.\n",
782 req->ring_ptr, req->ring_index, req->cnt,
783 req->id, req->max_q_depth);
784
785 if (startqp) {
786 ret = qla25xx_init_req_que(base_vha, req);
787 if (ret != QLA_SUCCESS) {
788 ql_log(ql_log_fatal, base_vha, 0x00df,
789 "%s failed.\n", __func__);
790 mutex_lock(&ha->mq_lock);
791 clear_bit(que_id, ha->req_qid_map);
792 mutex_unlock(&ha->mq_lock);
793 goto que_failed;
794 }
795 vha->flags.qpairs_req_created = 1;
796 }
797
798 return req->id;
799
800 que_failed:
801 qla25xx_free_req_que(base_vha, req);
802 failed:
803 return 0;
804 }
805
806 static void qla_do_work(struct work_struct *work)
807 {
808 unsigned long flags;
809 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
810 struct scsi_qla_host *vha = qpair->vha;
811
812 spin_lock_irqsave(&qpair->qp_lock, flags);
813 qla24xx_process_response_queue(vha, qpair->rsp);
814 spin_unlock_irqrestore(&qpair->qp_lock, flags);
815
816 }
817
818 /* create response queue */
819 int
820 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
821 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp)
822 {
823 int ret = 0;
824 struct rsp_que *rsp = NULL;
825 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
826 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
827 uint16_t que_id = 0;
828 device_reg_t *reg;
829
830 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
831 if (rsp == NULL) {
832 ql_log(ql_log_warn, base_vha, 0x0066,
833 "Failed to allocate memory for response queue.\n");
834 goto failed;
835 }
836
837 rsp->length = RESPONSE_ENTRY_CNT_MQ;
838 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
839 (rsp->length + 1) * sizeof(response_t),
840 &rsp->dma, GFP_KERNEL);
841 if (rsp->ring == NULL) {
842 ql_log(ql_log_warn, base_vha, 0x00e1,
843 "Failed to allocate memory for response ring.\n");
844 goto que_failed;
845 }
846
847 mutex_lock(&ha->mq_lock);
848 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
849 if (que_id >= ha->max_rsp_queues) {
850 mutex_unlock(&ha->mq_lock);
851 ql_log(ql_log_warn, base_vha, 0x00e2,
852 "No resources to create additional request queue.\n");
853 goto que_failed;
854 }
855 set_bit(que_id, ha->rsp_qid_map);
856
857 rsp->msix = qpair->msix;
858
859 ha->rsp_q_map[que_id] = rsp;
860 rsp->rid = rid;
861 rsp->vp_idx = vp_idx;
862 rsp->hw = ha;
863 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
864 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
865 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
866 /* Use alternate PCI bus number */
867 if (MSB(rsp->rid))
868 options |= BIT_4;
869 /* Use alternate PCI devfn */
870 if (LSB(rsp->rid))
871 options |= BIT_5;
872 /* Enable MSIX handshake mode on for uncapable adapters */
873 if (!IS_MSIX_NACK_CAPABLE(ha))
874 options |= BIT_6;
875
876 /* Set option to indicate response queue creation */
877 options |= BIT_1;
878
879 rsp->options = options;
880 rsp->id = que_id;
881 reg = ISP_QUE_REG(ha, que_id);
882 rsp->rsp_q_in = &reg->isp25mq.rsp_q_in;
883 rsp->rsp_q_out = &reg->isp25mq.rsp_q_out;
884 rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
885 mutex_unlock(&ha->mq_lock);
886 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
887 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
888 rsp->options, rsp->id, rsp->rsp_q_in,
889 rsp->rsp_q_out);
890 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
891 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
892 rsp->options, rsp->id, rsp->rsp_q_in,
893 rsp->rsp_q_out);
894
895 ret = qla25xx_request_irq(ha, qpair, qpair->msix,
896 ha->flags.disable_msix_handshake ?
897 QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS);
898 if (ret)
899 goto que_failed;
900
901 if (startqp) {
902 ret = qla25xx_init_rsp_que(base_vha, rsp);
903 if (ret != QLA_SUCCESS) {
904 ql_log(ql_log_fatal, base_vha, 0x00e7,
905 "%s failed.\n", __func__);
906 mutex_lock(&ha->mq_lock);
907 clear_bit(que_id, ha->rsp_qid_map);
908 mutex_unlock(&ha->mq_lock);
909 goto que_failed;
910 }
911 vha->flags.qpairs_rsp_created = 1;
912 }
913 rsp->req = NULL;
914
915 qla2x00_init_response_q_entries(rsp);
916 if (qpair->hw->wq)
917 INIT_WORK(&qpair->q_work, qla_do_work);
918 return rsp->id;
919
920 que_failed:
921 qla25xx_free_rsp_que(base_vha, rsp);
922 failed:
923 return 0;
924 }
925
926 static void qla_ctrlvp_sp_done(srb_t *sp, int res)
927 {
928 if (sp->comp)
929 complete(sp->comp);
930 /* don't free sp here. Let the caller do the free */
931 }
932
933 /**
934 * qla24xx_control_vp() - Enable a virtual port for given host
935 * @vha: adapter block pointer
936 * @cmd: command type to be sent for enable virtual port
937 *
938 * Return: qla2xxx local function return status code.
939 */
940 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
941 {
942 int rval = QLA_MEMORY_ALLOC_FAILED;
943 struct qla_hw_data *ha = vha->hw;
944 int vp_index = vha->vp_idx;
945 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
946 DECLARE_COMPLETION_ONSTACK(comp);
947 srb_t *sp;
948
949 ql_dbg(ql_dbg_vport, vha, 0x10c1,
950 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
951
952 if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
953 return QLA_PARAMETER_ERROR;
954
955 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
956 if (!sp)
957 return rval;
958
959 sp->type = SRB_CTRL_VP;
960 sp->name = "ctrl_vp";
961 sp->comp = &comp;
962 sp->done = qla_ctrlvp_sp_done;
963 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
964 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
965 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
966 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
967
968 rval = qla2x00_start_sp(sp);
969 if (rval != QLA_SUCCESS) {
970 ql_dbg(ql_dbg_async, vha, 0xffff,
971 "%s: %s Failed submission. %x.\n",
972 __func__, sp->name, rval);
973 goto done;
974 }
975
976 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
977 sp->name, sp->handle);
978
979 wait_for_completion(&comp);
980 sp->comp = NULL;
981
982 rval = sp->rc;
983 switch (rval) {
984 case QLA_FUNCTION_TIMEOUT:
985 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
986 __func__, sp->name, rval);
987 break;
988 case QLA_SUCCESS:
989 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
990 __func__, sp->name);
991 break;
992 default:
993 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
994 __func__, sp->name, rval);
995 break;
996 }
997 done:
998 sp->free(sp);
999 return rval;
1000 }
Linux with added FPC-III support