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UBUNTU: Ubuntu-5.15.0-39.42
[mirror_ubuntu-jammy-kernel.git] / drivers / scsi / qla2xxx / qla_mid.c
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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
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 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
62void
63qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
64{
65 uint16_t vp_id;
66 struct qla_hw_data *ha = vha->hw;
67 unsigned long flags = 0;
68 u32 i, bailout;
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 bailout = 0;
79 for (i = 0; i < 500; i++) {
80 spin_lock_irqsave(&ha->vport_slock, flags);
81 if (atomic_read(&vha->vref_count) == 0) {
82 list_del(&vha->list);
83 qlt_update_vp_map(vha, RESET_VP_IDX);
84 bailout = 1;
85 }
86 spin_unlock_irqrestore(&ha->vport_slock, flags);
87
88 if (bailout)
89 break;
90 else
91 msleep(20);
92 }
93 if (!bailout) {
94 ql_log(ql_log_info, vha, 0xfffa,
95 "vha->vref_count=%u timeout\n", vha->vref_count.counter);
96 spin_lock_irqsave(&ha->vport_slock, flags);
97 list_del(&vha->list);
98 qlt_update_vp_map(vha, RESET_VP_IDX);
99 spin_unlock_irqrestore(&ha->vport_slock, flags);
100 }
101
102 vp_id = vha->vp_idx;
103 ha->num_vhosts--;
104 clear_bit(vp_id, ha->vp_idx_map);
105
106 mutex_unlock(&ha->vport_lock);
107}
108
109static scsi_qla_host_t *
110qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
111{
112 scsi_qla_host_t *vha;
113 struct scsi_qla_host *tvha;
114 unsigned long flags;
115
116 spin_lock_irqsave(&ha->vport_slock, flags);
117 /* Locate matching device in database. */
118 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
119 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
120 spin_unlock_irqrestore(&ha->vport_slock, flags);
121 return vha;
122 }
123 }
124 spin_unlock_irqrestore(&ha->vport_slock, flags);
125 return NULL;
126}
127
128/*
129 * qla2x00_mark_vp_devices_dead
130 * Updates fcport state when device goes offline.
131 *
132 * Input:
133 * ha = adapter block pointer.
134 * fcport = port structure pointer.
135 *
136 * Return:
137 * None.
138 *
139 * Context:
140 */
141static void
142qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
143{
144 /*
145 * !!! NOTE !!!
146 * This function, if called in contexts other than vp create, disable
147 * or delete, please make sure this is synchronized with the
148 * delete thread.
149 */
150 fc_port_t *fcport;
151
152 list_for_each_entry(fcport, &vha->vp_fcports, list) {
153 ql_dbg(ql_dbg_vport, vha, 0xa001,
154 "Marking port dead, loop_id=0x%04x : %x.\n",
155 fcport->loop_id, fcport->vha->vp_idx);
156
157 qla2x00_mark_device_lost(vha, fcport, 0);
158 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
159 }
160}
161
162int
163qla24xx_disable_vp(scsi_qla_host_t *vha)
164{
165 unsigned long flags;
166 int ret = QLA_SUCCESS;
167 fc_port_t *fcport;
168
169 if (vha->hw->flags.edif_enabled)
170 /* delete sessions and flush sa_indexes */
171 qla2x00_wait_for_sess_deletion(vha);
172
173 if (vha->hw->flags.fw_started)
174 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
175
176 atomic_set(&vha->loop_state, LOOP_DOWN);
177 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
178 list_for_each_entry(fcport, &vha->vp_fcports, list)
179 fcport->logout_on_delete = 0;
180
181 if (!vha->hw->flags.edif_enabled)
182 qla2x00_wait_for_sess_deletion(vha);
183
184 /* Remove port id from vp target map */
185 spin_lock_irqsave(&vha->hw->hardware_lock, flags);
186 qlt_update_vp_map(vha, RESET_AL_PA);
187 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
188
189 qla2x00_mark_vp_devices_dead(vha);
190 atomic_set(&vha->vp_state, VP_FAILED);
191 vha->flags.management_server_logged_in = 0;
192 if (ret == QLA_SUCCESS) {
193 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
194 } else {
195 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
196 return -1;
197 }
198 return 0;
199}
200
201int
202qla24xx_enable_vp(scsi_qla_host_t *vha)
203{
204 int ret;
205 struct qla_hw_data *ha = vha->hw;
206 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
207
208 /* Check if physical ha port is Up */
209 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
210 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
211 !(ha->current_topology & ISP_CFG_F)) {
212 vha->vp_err_state = VP_ERR_PORTDWN;
213 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
214 ql_dbg(ql_dbg_taskm, vha, 0x800b,
215 "%s skip enable. loop_state %x topo %x\n",
216 __func__, base_vha->loop_state.counter,
217 ha->current_topology);
218
219 goto enable_failed;
220 }
221
222 /* Initialize the new vport unless it is a persistent port */
223 mutex_lock(&ha->vport_lock);
224 ret = qla24xx_modify_vp_config(vha);
225 mutex_unlock(&ha->vport_lock);
226
227 if (ret != QLA_SUCCESS) {
228 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
229 goto enable_failed;
230 }
231
232 ql_dbg(ql_dbg_taskm, vha, 0x801a,
233 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
234 return 0;
235
236enable_failed:
237 ql_dbg(ql_dbg_taskm, vha, 0x801b,
238 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
239 return 1;
240}
241
242static void
243qla24xx_configure_vp(scsi_qla_host_t *vha)
244{
245 struct fc_vport *fc_vport;
246 int ret;
247
248 fc_vport = vha->fc_vport;
249
250 ql_dbg(ql_dbg_vport, vha, 0xa002,
251 "%s: change request #3.\n", __func__);
252 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
253 if (ret != QLA_SUCCESS) {
254 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
255 "receiving of RSCN requests: 0x%x.\n", ret);
256 return;
257 } else {
258 /* Corresponds to SCR enabled */
259 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
260 }
261
262 vha->flags.online = 1;
263 if (qla24xx_configure_vhba(vha))
264 return;
265
266 atomic_set(&vha->vp_state, VP_ACTIVE);
267 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
268}
269
270void
271qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
272{
273 scsi_qla_host_t *vha, *tvp;
274 struct qla_hw_data *ha = rsp->hw;
275 int i = 0;
276 unsigned long flags;
277
278 spin_lock_irqsave(&ha->vport_slock, flags);
279 list_for_each_entry_safe(vha, tvp, &ha->vp_list, list) {
280 if (vha->vp_idx) {
281 if (test_bit(VPORT_DELETE, &vha->dpc_flags))
282 continue;
283
284 atomic_inc(&vha->vref_count);
285 spin_unlock_irqrestore(&ha->vport_slock, flags);
286
287 switch (mb[0]) {
288 case MBA_LIP_OCCURRED:
289 case MBA_LOOP_UP:
290 case MBA_LOOP_DOWN:
291 case MBA_LIP_RESET:
292 case MBA_POINT_TO_POINT:
293 case MBA_CHG_IN_CONNECTION:
294 ql_dbg(ql_dbg_async, vha, 0x5024,
295 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
296 i, *mb, vha);
297 qla2x00_async_event(vha, rsp, mb);
298 break;
299 case MBA_PORT_UPDATE:
300 case MBA_RSCN_UPDATE:
301 if ((mb[3] & 0xff) == vha->vp_idx) {
302 ql_dbg(ql_dbg_async, vha, 0x5024,
303 "Async_event for VP[%d], mb=0x%x vha=%p\n",
304 i, *mb, vha);
305 qla2x00_async_event(vha, rsp, mb);
306 }
307 break;
308 }
309
310 spin_lock_irqsave(&ha->vport_slock, flags);
311 atomic_dec(&vha->vref_count);
312 wake_up(&vha->vref_waitq);
313 }
314 i++;
315 }
316 spin_unlock_irqrestore(&ha->vport_slock, flags);
317}
318
319int
320qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
321{
322 fc_port_t *fcport;
323
324 /*
325 * To exclusively reset vport, we need to log it out first.
326 * Note: This control_vp can fail if ISP reset is already
327 * issued, this is expected, as the vp would be already
328 * logged out due to ISP reset.
329 */
330 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
331 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
332 list_for_each_entry(fcport, &vha->vp_fcports, list)
333 fcport->logout_on_delete = 0;
334 }
335
336 /*
337 * Physical port will do most of the abort and recovery work. We can
338 * just treat it as a loop down
339 */
340 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
341 atomic_set(&vha->loop_state, LOOP_DOWN);
342 qla2x00_mark_all_devices_lost(vha);
343 } else {
344 if (!atomic_read(&vha->loop_down_timer))
345 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
346 }
347
348 ql_dbg(ql_dbg_taskm, vha, 0x801d,
349 "Scheduling enable of Vport %d.\n", vha->vp_idx);
350
351 return qla24xx_enable_vp(vha);
352}
353
354static int
355qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
356{
357 struct qla_hw_data *ha = vha->hw;
358 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
359
360 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
361 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
362
363 /* Check if Fw is ready to configure VP first */
364 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
365 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
366 /* VP acquired. complete port configuration */
367 ql_dbg(ql_dbg_dpc, vha, 0x4014,
368 "Configure VP scheduled.\n");
369 qla24xx_configure_vp(vha);
370 ql_dbg(ql_dbg_dpc, vha, 0x4015,
371 "Configure VP end.\n");
372 return 0;
373 }
374 }
375
376 if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) {
377 if (atomic_read(&vha->loop_state) == LOOP_READY) {
378 qla24xx_process_purex_list(&vha->purex_list);
379 clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
380 }
381 }
382
383 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
384 ql_dbg(ql_dbg_dpc, vha, 0x4016,
385 "FCPort update scheduled.\n");
386 qla2x00_update_fcports(vha);
387 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
388 ql_dbg(ql_dbg_dpc, vha, 0x4017,
389 "FCPort update end.\n");
390 }
391
392 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
393 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
394 atomic_read(&vha->loop_state) != LOOP_DOWN) {
395
396 if (!vha->relogin_jif ||
397 time_after_eq(jiffies, vha->relogin_jif)) {
398 vha->relogin_jif = jiffies + HZ;
399 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
400
401 ql_dbg(ql_dbg_dpc, vha, 0x4018,
402 "Relogin needed scheduled.\n");
403 qla24xx_post_relogin_work(vha);
404 }
405 }
406
407 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
408 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
409 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
410 }
411
412 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
413 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
414 ql_dbg(ql_dbg_dpc, vha, 0x401a,
415 "Loop resync scheduled.\n");
416 qla2x00_loop_resync(vha);
417 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
418 ql_dbg(ql_dbg_dpc, vha, 0x401b,
419 "Loop resync end.\n");
420 }
421 }
422
423 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
424 "Exiting %s.\n", __func__);
425 return 0;
426}
427
428void
429qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
430{
431 struct qla_hw_data *ha = vha->hw;
432 scsi_qla_host_t *vp, *tvp;
433 unsigned long flags = 0;
434
435 if (vha->vp_idx)
436 return;
437 if (list_empty(&ha->vp_list))
438 return;
439
440 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
441
442 if (!(ha->current_topology & ISP_CFG_F))
443 return;
444
445 spin_lock_irqsave(&ha->vport_slock, flags);
446 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
447 if (vp->vp_idx) {
448 atomic_inc(&vp->vref_count);
449 spin_unlock_irqrestore(&ha->vport_slock, flags);
450
451 qla2x00_do_dpc_vp(vp);
452
453 spin_lock_irqsave(&ha->vport_slock, flags);
454 atomic_dec(&vp->vref_count);
455 }
456 }
457 spin_unlock_irqrestore(&ha->vport_slock, flags);
458}
459
460int
461qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
462{
463 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
464 struct qla_hw_data *ha = base_vha->hw;
465 scsi_qla_host_t *vha;
466 uint8_t port_name[WWN_SIZE];
467
468 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
469 return VPCERR_UNSUPPORTED;
470
471 /* Check up the F/W and H/W support NPIV */
472 if (!ha->flags.npiv_supported)
473 return VPCERR_UNSUPPORTED;
474
475 /* Check up whether npiv supported switch presented */
476 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
477 return VPCERR_NO_FABRIC_SUPP;
478
479 /* Check up unique WWPN */
480 u64_to_wwn(fc_vport->port_name, port_name);
481 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
482 return VPCERR_BAD_WWN;
483 vha = qla24xx_find_vhost_by_name(ha, port_name);
484 if (vha)
485 return VPCERR_BAD_WWN;
486
487 /* Check up max-npiv-supports */
488 if (ha->num_vhosts > ha->max_npiv_vports) {
489 ql_dbg(ql_dbg_vport, vha, 0xa004,
490 "num_vhosts %ud is bigger "
491 "than max_npiv_vports %ud.\n",
492 ha->num_vhosts, ha->max_npiv_vports);
493 return VPCERR_UNSUPPORTED;
494 }
495 return 0;
496}
497
498scsi_qla_host_t *
499qla24xx_create_vhost(struct fc_vport *fc_vport)
500{
501 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
502 struct qla_hw_data *ha = base_vha->hw;
503 scsi_qla_host_t *vha;
504 struct scsi_host_template *sht = &qla2xxx_driver_template;
505 struct Scsi_Host *host;
506
507 vha = qla2x00_create_host(sht, ha);
508 if (!vha) {
509 ql_log(ql_log_warn, vha, 0xa005,
510 "scsi_host_alloc() failed for vport.\n");
511 return(NULL);
512 }
513
514 host = vha->host;
515 fc_vport->dd_data = vha;
516 /* New host info */
517 u64_to_wwn(fc_vport->node_name, vha->node_name);
518 u64_to_wwn(fc_vport->port_name, vha->port_name);
519
520 vha->fc_vport = fc_vport;
521 vha->device_flags = 0;
522 vha->vp_idx = qla24xx_allocate_vp_id(vha);
523 if (vha->vp_idx > ha->max_npiv_vports) {
524 ql_dbg(ql_dbg_vport, vha, 0xa006,
525 "Couldn't allocate vp_id.\n");
526 goto create_vhost_failed;
527 }
528 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha);
529
530 vha->dpc_flags = 0L;
531 ha->dpc_active = 0;
532 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
533 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
534
535 /*
536 * To fix the issue of processing a parent's RSCN for the vport before
537 * its SCR is complete.
538 */
539 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
540 atomic_set(&vha->loop_state, LOOP_DOWN);
541 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
542
543 qla2x00_start_timer(vha, WATCH_INTERVAL);
544
545 vha->req = base_vha->req;
546 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled;
547 host->can_queue = base_vha->req->length + 128;
548 host->cmd_per_lun = 3;
549 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
550 host->max_cmd_len = 32;
551 else
552 host->max_cmd_len = MAX_CMDSZ;
553 host->max_channel = MAX_BUSES - 1;
554 host->max_lun = ql2xmaxlun;
555 host->unique_id = host->host_no;
556 host->max_id = ha->max_fibre_devices;
557 host->transportt = qla2xxx_transport_vport_template;
558
559 ql_dbg(ql_dbg_vport, vha, 0xa007,
560 "Detect vport hba %ld at address = %p.\n",
561 vha->host_no, vha);
562
563 vha->flags.init_done = 1;
564
565 mutex_lock(&ha->vport_lock);
566 set_bit(vha->vp_idx, ha->vp_idx_map);
567 ha->cur_vport_count++;
568 mutex_unlock(&ha->vport_lock);
569
570 return vha;
571
572create_vhost_failed:
573 return NULL;
574}
575
576static void
577qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
578{
579 struct qla_hw_data *ha = vha->hw;
580 uint16_t que_id = req->id;
581
582 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
583 sizeof(request_t), req->ring, req->dma);
584 req->ring = NULL;
585 req->dma = 0;
586 if (que_id) {
587 ha->req_q_map[que_id] = NULL;
588 mutex_lock(&ha->vport_lock);
589 clear_bit(que_id, ha->req_qid_map);
590 mutex_unlock(&ha->vport_lock);
591 }
592 kfree(req->outstanding_cmds);
593 kfree(req);
594 req = NULL;
595}
596
597static void
598qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
599{
600 struct qla_hw_data *ha = vha->hw;
601 uint16_t que_id = rsp->id;
602
603 if (rsp->msix && rsp->msix->have_irq) {
604 free_irq(rsp->msix->vector, rsp->msix->handle);
605 rsp->msix->have_irq = 0;
606 rsp->msix->in_use = 0;
607 rsp->msix->handle = NULL;
608 }
609 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
610 sizeof(response_t), rsp->ring, rsp->dma);
611 rsp->ring = NULL;
612 rsp->dma = 0;
613 if (que_id) {
614 ha->rsp_q_map[que_id] = NULL;
615 mutex_lock(&ha->vport_lock);
616 clear_bit(que_id, ha->rsp_qid_map);
617 mutex_unlock(&ha->vport_lock);
618 }
619 kfree(rsp);
620 rsp = NULL;
621}
622
623int
624qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
625{
626 int ret = QLA_SUCCESS;
627
628 if (req && vha->flags.qpairs_req_created) {
629 req->options |= BIT_0;
630 ret = qla25xx_init_req_que(vha, req);
631 if (ret != QLA_SUCCESS)
632 return QLA_FUNCTION_FAILED;
633
634 qla25xx_free_req_que(vha, req);
635 }
636
637 return ret;
638}
639
640int
641qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
642{
643 int ret = QLA_SUCCESS;
644
645 if (rsp && vha->flags.qpairs_rsp_created) {
646 rsp->options |= BIT_0;
647 ret = qla25xx_init_rsp_que(vha, rsp);
648 if (ret != QLA_SUCCESS)
649 return QLA_FUNCTION_FAILED;
650
651 qla25xx_free_rsp_que(vha, rsp);
652 }
653
654 return ret;
655}
656
657/* Delete all queues for a given vhost */
658int
659qla25xx_delete_queues(struct scsi_qla_host *vha)
660{
661 int cnt, ret = 0;
662 struct req_que *req = NULL;
663 struct rsp_que *rsp = NULL;
664 struct qla_hw_data *ha = vha->hw;
665 struct qla_qpair *qpair, *tqpair;
666
667 if (ql2xmqsupport || ql2xnvmeenable) {
668 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
669 qp_list_elem)
670 qla2xxx_delete_qpair(vha, qpair);
671 } else {
672 /* Delete request queues */
673 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
674 req = ha->req_q_map[cnt];
675 if (req && test_bit(cnt, ha->req_qid_map)) {
676 ret = qla25xx_delete_req_que(vha, req);
677 if (ret != QLA_SUCCESS) {
678 ql_log(ql_log_warn, vha, 0x00ea,
679 "Couldn't delete req que %d.\n",
680 req->id);
681 return ret;
682 }
683 }
684 }
685
686 /* Delete response queues */
687 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
688 rsp = ha->rsp_q_map[cnt];
689 if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
690 ret = qla25xx_delete_rsp_que(vha, rsp);
691 if (ret != QLA_SUCCESS) {
692 ql_log(ql_log_warn, vha, 0x00eb,
693 "Couldn't delete rsp que %d.\n",
694 rsp->id);
695 return ret;
696 }
697 }
698 }
699 }
700
701 return ret;
702}
703
704int
705qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
706 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp)
707{
708 int ret = 0;
709 struct req_que *req = NULL;
710 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
711 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
712 uint16_t que_id = 0;
713 device_reg_t *reg;
714 uint32_t cnt;
715
716 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
717 if (req == NULL) {
718 ql_log(ql_log_fatal, base_vha, 0x00d9,
719 "Failed to allocate memory for request queue.\n");
720 goto failed;
721 }
722
723 req->length = REQUEST_ENTRY_CNT_24XX;
724 req->ring = dma_alloc_coherent(&ha->pdev->dev,
725 (req->length + 1) * sizeof(request_t),
726 &req->dma, GFP_KERNEL);
727 if (req->ring == NULL) {
728 ql_log(ql_log_fatal, base_vha, 0x00da,
729 "Failed to allocate memory for request_ring.\n");
730 goto que_failed;
731 }
732
733 ret = qla2x00_alloc_outstanding_cmds(ha, req);
734 if (ret != QLA_SUCCESS)
735 goto que_failed;
736
737 mutex_lock(&ha->mq_lock);
738 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
739 if (que_id >= ha->max_req_queues) {
740 mutex_unlock(&ha->mq_lock);
741 ql_log(ql_log_warn, base_vha, 0x00db,
742 "No resources to create additional request queue.\n");
743 goto que_failed;
744 }
745 set_bit(que_id, ha->req_qid_map);
746 ha->req_q_map[que_id] = req;
747 req->rid = rid;
748 req->vp_idx = vp_idx;
749 req->qos = qos;
750
751 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
752 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
753 que_id, req->rid, req->vp_idx, req->qos);
754 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
755 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
756 que_id, req->rid, req->vp_idx, req->qos);
757 if (rsp_que < 0)
758 req->rsp = NULL;
759 else
760 req->rsp = ha->rsp_q_map[rsp_que];
761 /* Use alternate PCI bus number */
762 if (MSB(req->rid))
763 options |= BIT_4;
764 /* Use alternate PCI devfn */
765 if (LSB(req->rid))
766 options |= BIT_5;
767 req->options = options;
768
769 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
770 "options=0x%x.\n", req->options);
771 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
772 "options=0x%x.\n", req->options);
773 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
774 req->outstanding_cmds[cnt] = NULL;
775 req->current_outstanding_cmd = 1;
776
777 req->ring_ptr = req->ring;
778 req->ring_index = 0;
779 req->cnt = req->length;
780 req->id = que_id;
781 reg = ISP_QUE_REG(ha, que_id);
782 req->req_q_in = &reg->isp25mq.req_q_in;
783 req->req_q_out = &reg->isp25mq.req_q_out;
784 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
785 req->out_ptr = (uint16_t *)(req->ring + req->length);
786 mutex_unlock(&ha->mq_lock);
787 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
788 "ring_ptr=%p ring_index=%d, "
789 "cnt=%d id=%d max_q_depth=%d.\n",
790 req->ring_ptr, req->ring_index,
791 req->cnt, req->id, req->max_q_depth);
792 ql_dbg(ql_dbg_init, base_vha, 0x00de,
793 "ring_ptr=%p ring_index=%d, "
794 "cnt=%d id=%d max_q_depth=%d.\n",
795 req->ring_ptr, req->ring_index, req->cnt,
796 req->id, req->max_q_depth);
797
798 if (startqp) {
799 ret = qla25xx_init_req_que(base_vha, req);
800 if (ret != QLA_SUCCESS) {
801 ql_log(ql_log_fatal, base_vha, 0x00df,
802 "%s failed.\n", __func__);
803 mutex_lock(&ha->mq_lock);
804 clear_bit(que_id, ha->req_qid_map);
805 mutex_unlock(&ha->mq_lock);
806 goto que_failed;
807 }
808 vha->flags.qpairs_req_created = 1;
809 }
810
811 return req->id;
812
813que_failed:
814 qla25xx_free_req_que(base_vha, req);
815failed:
816 return 0;
817}
818
819static void qla_do_work(struct work_struct *work)
820{
821 unsigned long flags;
822 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
823 struct scsi_qla_host *vha = qpair->vha;
824
825 spin_lock_irqsave(&qpair->qp_lock, flags);
826 qla24xx_process_response_queue(vha, qpair->rsp);
827 spin_unlock_irqrestore(&qpair->qp_lock, flags);
828
829}
830
831/* create response queue */
832int
833qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
834 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp)
835{
836 int ret = 0;
837 struct rsp_que *rsp = NULL;
838 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
839 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
840 uint16_t que_id = 0;
841 device_reg_t *reg;
842
843 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
844 if (rsp == NULL) {
845 ql_log(ql_log_warn, base_vha, 0x0066,
846 "Failed to allocate memory for response queue.\n");
847 goto failed;
848 }
849
850 rsp->length = RESPONSE_ENTRY_CNT_MQ;
851 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
852 (rsp->length + 1) * sizeof(response_t),
853 &rsp->dma, GFP_KERNEL);
854 if (rsp->ring == NULL) {
855 ql_log(ql_log_warn, base_vha, 0x00e1,
856 "Failed to allocate memory for response ring.\n");
857 goto que_failed;
858 }
859
860 mutex_lock(&ha->mq_lock);
861 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
862 if (que_id >= ha->max_rsp_queues) {
863 mutex_unlock(&ha->mq_lock);
864 ql_log(ql_log_warn, base_vha, 0x00e2,
865 "No resources to create additional request queue.\n");
866 goto que_failed;
867 }
868 set_bit(que_id, ha->rsp_qid_map);
869
870 rsp->msix = qpair->msix;
871
872 ha->rsp_q_map[que_id] = rsp;
873 rsp->rid = rid;
874 rsp->vp_idx = vp_idx;
875 rsp->hw = ha;
876 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
877 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
878 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
879 /* Use alternate PCI bus number */
880 if (MSB(rsp->rid))
881 options |= BIT_4;
882 /* Use alternate PCI devfn */
883 if (LSB(rsp->rid))
884 options |= BIT_5;
885 /* Enable MSIX handshake mode on for uncapable adapters */
886 if (!IS_MSIX_NACK_CAPABLE(ha))
887 options |= BIT_6;
888
889 /* Set option to indicate response queue creation */
890 options |= BIT_1;
891
892 rsp->options = options;
893 rsp->id = que_id;
894 reg = ISP_QUE_REG(ha, que_id);
895 rsp->rsp_q_in = &reg->isp25mq.rsp_q_in;
896 rsp->rsp_q_out = &reg->isp25mq.rsp_q_out;
897 rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
898 mutex_unlock(&ha->mq_lock);
899 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
900 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
901 rsp->options, rsp->id, rsp->rsp_q_in,
902 rsp->rsp_q_out);
903 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
904 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
905 rsp->options, rsp->id, rsp->rsp_q_in,
906 rsp->rsp_q_out);
907
908 ret = qla25xx_request_irq(ha, qpair, qpair->msix,
909 ha->flags.disable_msix_handshake ?
910 QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS);
911 if (ret)
912 goto que_failed;
913
914 if (startqp) {
915 ret = qla25xx_init_rsp_que(base_vha, rsp);
916 if (ret != QLA_SUCCESS) {
917 ql_log(ql_log_fatal, base_vha, 0x00e7,
918 "%s failed.\n", __func__);
919 mutex_lock(&ha->mq_lock);
920 clear_bit(que_id, ha->rsp_qid_map);
921 mutex_unlock(&ha->mq_lock);
922 goto que_failed;
923 }
924 vha->flags.qpairs_rsp_created = 1;
925 }
926 rsp->req = NULL;
927
928 qla2x00_init_response_q_entries(rsp);
929 if (qpair->hw->wq)
930 INIT_WORK(&qpair->q_work, qla_do_work);
931 return rsp->id;
932
933que_failed:
934 qla25xx_free_rsp_que(base_vha, rsp);
935failed:
936 return 0;
937}
938
939static void qla_ctrlvp_sp_done(srb_t *sp, int res)
940{
941 if (sp->comp)
942 complete(sp->comp);
943 /* don't free sp here. Let the caller do the free */
944}
945
946/**
947 * qla24xx_control_vp() - Enable a virtual port for given host
948 * @vha: adapter block pointer
949 * @cmd: command type to be sent for enable virtual port
950 *
951 * Return: qla2xxx local function return status code.
952 */
953int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
954{
955 int rval = QLA_MEMORY_ALLOC_FAILED;
956 struct qla_hw_data *ha = vha->hw;
957 int vp_index = vha->vp_idx;
958 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
959 DECLARE_COMPLETION_ONSTACK(comp);
960 srb_t *sp;
961
962 ql_dbg(ql_dbg_vport, vha, 0x10c1,
963 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
964
965 if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
966 return QLA_PARAMETER_ERROR;
967
968 /* ref: INIT */
969 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
970 if (!sp)
971 return rval;
972
973 sp->type = SRB_CTRL_VP;
974 sp->name = "ctrl_vp";
975 sp->comp = &comp;
976 qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
977 qla_ctrlvp_sp_done);
978 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
979 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
980
981 rval = qla2x00_start_sp(sp);
982 if (rval != QLA_SUCCESS) {
983 ql_dbg(ql_dbg_async, vha, 0xffff,
984 "%s: %s Failed submission. %x.\n",
985 __func__, sp->name, rval);
986 goto done;
987 }
988
989 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
990 sp->name, sp->handle);
991
992 wait_for_completion(&comp);
993 sp->comp = NULL;
994
995 rval = sp->rc;
996 switch (rval) {
997 case QLA_FUNCTION_TIMEOUT:
998 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
999 __func__, sp->name, rval);
1000 break;
1001 case QLA_SUCCESS:
1002 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
1003 __func__, sp->name);
1004 break;
1005 default:
1006 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
1007 __func__, sp->name, rval);
1008 break;
1009 }
1010done:
1011 /* ref: INIT */
1012 kref_put(&sp->cmd_kref, qla2x00_sp_release);
1013 return rval;
1014}
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