2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include "qla_target.h"
11 #include <linux/moduleparam.h>
12 #include <linux/vmalloc.h>
13 #include <linux/slab.h>
14 #include <linux/list.h>
16 #include <scsi/scsi_tcq.h>
17 #include <scsi/scsicam.h>
18 #include <linux/delay.h>
21 qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
23 if (vha->vp_idx && vha->timer_active) {
24 del_timer_sync(&vha->timer);
25 vha->timer_active = 0;
30 qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
33 struct qla_hw_data *ha = vha->hw;
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);
47 set_bit(vp_id, ha->vp_idx_map);
51 spin_lock_irqsave(&ha->vport_slock, flags);
52 list_add_tail(&vha->list, &ha->vp_list);
54 qlt_update_vp_map(vha, SET_VP_IDX);
56 spin_unlock_irqrestore(&ha->vport_slock, flags);
58 mutex_unlock(&ha->vport_lock);
63 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
66 struct qla_hw_data *ha = vha->hw;
67 unsigned long flags = 0;
69 mutex_lock(&ha->vport_lock);
71 * Wait for all pending activities to finish before removing vport from
73 * Lock needs to be held for safe removal from the list (it
74 * ensures no active vp_list traversal while the vport is removed
77 spin_lock_irqsave(&ha->vport_slock, flags);
78 while (atomic_read(&vha->vref_count)) {
79 spin_unlock_irqrestore(&ha->vport_slock, flags);
83 spin_lock_irqsave(&ha->vport_slock, flags);
86 qlt_update_vp_map(vha, RESET_VP_IDX);
87 spin_unlock_irqrestore(&ha->vport_slock, flags);
91 clear_bit(vp_id, ha->vp_idx_map);
93 mutex_unlock(&ha->vport_lock);
96 static scsi_qla_host_t *
97 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
100 struct scsi_qla_host *tvha;
103 spin_lock_irqsave(&ha->vport_slock, flags);
104 /* Locate matching device in database. */
105 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
106 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
107 spin_unlock_irqrestore(&ha->vport_slock, flags);
111 spin_unlock_irqrestore(&ha->vport_slock, flags);
116 * qla2x00_mark_vp_devices_dead
117 * Updates fcport state when device goes offline.
120 * ha = adapter block pointer.
121 * fcport = port structure pointer.
129 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
133 * This function, if called in contexts other than vp create, disable
134 * or delete, please make sure this is synchronized with the
139 list_for_each_entry(fcport, &vha->vp_fcports, list) {
140 ql_dbg(ql_dbg_vport, vha, 0xa001,
141 "Marking port dead, loop_id=0x%04x : %x.\n",
142 fcport->loop_id, fcport->vha->vp_idx);
144 qla2x00_mark_device_lost(vha, fcport, 0, 0);
145 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
150 qla24xx_disable_vp(scsi_qla_host_t *vha)
155 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
156 atomic_set(&vha->loop_state, LOOP_DOWN);
157 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
159 /* Remove port id from vp target map */
160 spin_lock_irqsave(&vha->hw->vport_slock, flags);
161 qlt_update_vp_map(vha, RESET_AL_PA);
162 spin_unlock_irqrestore(&vha->hw->vport_slock, flags);
164 qla2x00_mark_vp_devices_dead(vha);
165 atomic_set(&vha->vp_state, VP_FAILED);
166 vha->flags.management_server_logged_in = 0;
167 if (ret == QLA_SUCCESS) {
168 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
170 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
177 qla24xx_enable_vp(scsi_qla_host_t *vha)
180 struct qla_hw_data *ha = vha->hw;
181 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
183 /* Check if physical ha port is Up */
184 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
185 atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
186 !(ha->current_topology & ISP_CFG_F)) {
187 vha->vp_err_state = VP_ERR_PORTDWN;
188 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
192 /* Initialize the new vport unless it is a persistent port */
193 mutex_lock(&ha->vport_lock);
194 ret = qla24xx_modify_vp_config(vha);
195 mutex_unlock(&ha->vport_lock);
197 if (ret != QLA_SUCCESS) {
198 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
202 ql_dbg(ql_dbg_taskm, vha, 0x801a,
203 "Virtual port with id: %d - Enabled.\n", vha->vp_idx);
207 ql_dbg(ql_dbg_taskm, vha, 0x801b,
208 "Virtual port with id: %d - Disabled.\n", vha->vp_idx);
213 qla24xx_configure_vp(scsi_qla_host_t *vha)
215 struct fc_vport *fc_vport;
218 fc_vport = vha->fc_vport;
220 ql_dbg(ql_dbg_vport, vha, 0xa002,
221 "%s: change request #3.\n", __func__);
222 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
223 if (ret != QLA_SUCCESS) {
224 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
225 "receiving of RSCN requests: 0x%x.\n", ret);
228 /* Corresponds to SCR enabled */
229 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
232 vha->flags.online = 1;
233 if (qla24xx_configure_vhba(vha))
236 atomic_set(&vha->vp_state, VP_ACTIVE);
237 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
241 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
243 scsi_qla_host_t *vha;
244 struct qla_hw_data *ha = rsp->hw;
248 spin_lock_irqsave(&ha->vport_slock, flags);
249 list_for_each_entry(vha, &ha->vp_list, list) {
251 atomic_inc(&vha->vref_count);
252 spin_unlock_irqrestore(&ha->vport_slock, flags);
255 case MBA_LIP_OCCURRED:
259 case MBA_POINT_TO_POINT:
260 case MBA_CHG_IN_CONNECTION:
261 case MBA_PORT_UPDATE:
262 case MBA_RSCN_UPDATE:
263 ql_dbg(ql_dbg_async, vha, 0x5024,
264 "Async_event for VP[%d], mb=0x%x vha=%p.\n",
266 qla2x00_async_event(vha, rsp, mb);
270 spin_lock_irqsave(&ha->vport_slock, flags);
271 atomic_dec(&vha->vref_count);
275 spin_unlock_irqrestore(&ha->vport_slock, flags);
279 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
282 * Physical port will do most of the abort and recovery work. We can
283 * just treat it as a loop down
285 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
286 atomic_set(&vha->loop_state, LOOP_DOWN);
287 qla2x00_mark_all_devices_lost(vha, 0);
289 if (!atomic_read(&vha->loop_down_timer))
290 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
294 * To exclusively reset vport, we need to log it out first. Note: this
295 * control_vp can fail if ISP reset is already issued, this is
296 * expected, as the vp would be already logged out due to ISP reset.
298 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
299 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
301 ql_dbg(ql_dbg_taskm, vha, 0x801d,
302 "Scheduling enable of Vport %d.\n", vha->vp_idx);
303 return qla24xx_enable_vp(vha);
307 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
309 struct qla_hw_data *ha = vha->hw;
310 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
312 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
313 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
315 qla2x00_do_work(vha);
317 /* Check if Fw is ready to configure VP first */
318 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
319 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
320 /* VP acquired. complete port configuration */
321 ql_dbg(ql_dbg_dpc, vha, 0x4014,
322 "Configure VP scheduled.\n");
323 qla24xx_configure_vp(vha);
324 ql_dbg(ql_dbg_dpc, vha, 0x4015,
325 "Configure VP end.\n");
330 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
331 ql_dbg(ql_dbg_dpc, vha, 0x4016,
332 "FCPort update scheduled.\n");
333 qla2x00_update_fcports(vha);
334 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
335 ql_dbg(ql_dbg_dpc, vha, 0x4017,
336 "FCPort update end.\n");
339 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
340 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
341 atomic_read(&vha->loop_state) != LOOP_DOWN) {
343 ql_dbg(ql_dbg_dpc, vha, 0x4018,
344 "Relogin needed scheduled.\n");
345 qla2x00_relogin(vha);
346 ql_dbg(ql_dbg_dpc, vha, 0x4019,
347 "Relogin needed end.\n");
350 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
351 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
352 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
355 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
356 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
357 ql_dbg(ql_dbg_dpc, vha, 0x401a,
358 "Loop resync scheduled.\n");
359 qla2x00_loop_resync(vha);
360 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
361 ql_dbg(ql_dbg_dpc, vha, 0x401b,
362 "Loop resync end.\n");
366 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
367 "Exiting %s.\n", __func__);
372 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
375 struct qla_hw_data *ha = vha->hw;
377 unsigned long flags = 0;
381 if (list_empty(&ha->vp_list))
384 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
386 if (!(ha->current_topology & ISP_CFG_F))
389 spin_lock_irqsave(&ha->vport_slock, flags);
390 list_for_each_entry(vp, &ha->vp_list, list) {
392 atomic_inc(&vp->vref_count);
393 spin_unlock_irqrestore(&ha->vport_slock, flags);
395 ret = qla2x00_do_dpc_vp(vp);
397 spin_lock_irqsave(&ha->vport_slock, flags);
398 atomic_dec(&vp->vref_count);
401 spin_unlock_irqrestore(&ha->vport_slock, flags);
405 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
407 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
408 struct qla_hw_data *ha = base_vha->hw;
409 scsi_qla_host_t *vha;
410 uint8_t port_name[WWN_SIZE];
412 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
413 return VPCERR_UNSUPPORTED;
415 /* Check up the F/W and H/W support NPIV */
416 if (!ha->flags.npiv_supported)
417 return VPCERR_UNSUPPORTED;
419 /* Check up whether npiv supported switch presented */
420 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
421 return VPCERR_NO_FABRIC_SUPP;
423 /* Check up unique WWPN */
424 u64_to_wwn(fc_vport->port_name, port_name);
425 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
426 return VPCERR_BAD_WWN;
427 vha = qla24xx_find_vhost_by_name(ha, port_name);
429 return VPCERR_BAD_WWN;
431 /* Check up max-npiv-supports */
432 if (ha->num_vhosts > ha->max_npiv_vports) {
433 ql_dbg(ql_dbg_vport, vha, 0xa004,
434 "num_vhosts %ud is bigger "
435 "than max_npiv_vports %ud.\n",
436 ha->num_vhosts, ha->max_npiv_vports);
437 return VPCERR_UNSUPPORTED;
443 qla24xx_create_vhost(struct fc_vport *fc_vport)
445 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
446 struct qla_hw_data *ha = base_vha->hw;
447 scsi_qla_host_t *vha;
448 struct scsi_host_template *sht = &qla2xxx_driver_template;
449 struct Scsi_Host *host;
451 vha = qla2x00_create_host(sht, ha);
453 ql_log(ql_log_warn, vha, 0xa005,
454 "scsi_host_alloc() failed for vport.\n");
459 fc_vport->dd_data = vha;
461 u64_to_wwn(fc_vport->node_name, vha->node_name);
462 u64_to_wwn(fc_vport->port_name, vha->port_name);
464 vha->fc_vport = fc_vport;
465 vha->device_flags = 0;
466 vha->vp_idx = qla24xx_allocate_vp_id(vha);
467 if (vha->vp_idx > ha->max_npiv_vports) {
468 ql_dbg(ql_dbg_vport, vha, 0xa006,
469 "Couldn't allocate vp_id.\n");
470 goto create_vhost_failed;
472 vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
477 * To fix the issue of processing a parent's RSCN for the vport before
478 * its SCR is complete.
480 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
481 atomic_set(&vha->loop_state, LOOP_DOWN);
482 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
484 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
486 vha->req = base_vha->req;
487 host->can_queue = base_vha->req->length + 128;
488 host->cmd_per_lun = 3;
489 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
490 host->max_cmd_len = 32;
492 host->max_cmd_len = MAX_CMDSZ;
493 host->max_channel = MAX_BUSES - 1;
494 host->max_lun = ql2xmaxlun;
495 host->unique_id = host->host_no;
496 host->max_id = ha->max_fibre_devices;
497 host->transportt = qla2xxx_transport_vport_template;
499 ql_dbg(ql_dbg_vport, vha, 0xa007,
500 "Detect vport hba %ld at address = %p.\n",
503 vha->flags.init_done = 1;
505 mutex_lock(&ha->vport_lock);
506 set_bit(vha->vp_idx, ha->vp_idx_map);
507 ha->cur_vport_count++;
508 mutex_unlock(&ha->vport_lock);
517 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
519 struct qla_hw_data *ha = vha->hw;
520 uint16_t que_id = req->id;
522 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
523 sizeof(request_t), req->ring, req->dma);
527 ha->req_q_map[que_id] = NULL;
528 mutex_lock(&ha->vport_lock);
529 clear_bit(que_id, ha->req_qid_map);
530 mutex_unlock(&ha->vport_lock);
532 kfree(req->outstanding_cmds);
538 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
540 struct qla_hw_data *ha = vha->hw;
541 uint16_t que_id = rsp->id;
543 if (rsp->msix && rsp->msix->have_irq) {
544 free_irq(rsp->msix->vector, rsp);
545 rsp->msix->have_irq = 0;
546 rsp->msix->rsp = NULL;
548 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
549 sizeof(response_t), rsp->ring, rsp->dma);
553 ha->rsp_q_map[que_id] = NULL;
554 mutex_lock(&ha->vport_lock);
555 clear_bit(que_id, ha->rsp_qid_map);
556 mutex_unlock(&ha->vport_lock);
563 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
568 req->options |= BIT_0;
569 ret = qla25xx_init_req_que(vha, req);
571 if (ret == QLA_SUCCESS)
572 qla25xx_free_req_que(vha, req);
578 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
583 rsp->options |= BIT_0;
584 ret = qla25xx_init_rsp_que(vha, rsp);
586 if (ret == QLA_SUCCESS)
587 qla25xx_free_rsp_que(vha, rsp);
592 /* Delete all queues for a given vhost */
594 qla25xx_delete_queues(struct scsi_qla_host *vha)
597 struct req_que *req = NULL;
598 struct rsp_que *rsp = NULL;
599 struct qla_hw_data *ha = vha->hw;
601 /* Delete request queues */
602 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
603 req = ha->req_q_map[cnt];
605 ret = qla25xx_delete_req_que(vha, req);
606 if (ret != QLA_SUCCESS) {
607 ql_log(ql_log_warn, vha, 0x00ea,
608 "Couldn't delete req que %d.\n",
615 /* Delete response queues */
616 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
617 rsp = ha->rsp_q_map[cnt];
619 ret = qla25xx_delete_rsp_que(vha, rsp);
620 if (ret != QLA_SUCCESS) {
621 ql_log(ql_log_warn, vha, 0x00eb,
622 "Couldn't delete rsp que %d.\n",
632 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
633 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
636 struct req_que *req = NULL;
637 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
642 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
644 ql_log(ql_log_fatal, base_vha, 0x00d9,
645 "Failed to allocate memory for request queue.\n");
649 req->length = REQUEST_ENTRY_CNT_24XX;
650 req->ring = dma_alloc_coherent(&ha->pdev->dev,
651 (req->length + 1) * sizeof(request_t),
652 &req->dma, GFP_KERNEL);
653 if (req->ring == NULL) {
654 ql_log(ql_log_fatal, base_vha, 0x00da,
655 "Failed to allocate memory for request_ring.\n");
659 ret = qla2x00_alloc_outstanding_cmds(ha, req);
660 if (ret != QLA_SUCCESS)
663 mutex_lock(&ha->vport_lock);
664 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
665 if (que_id >= ha->max_req_queues) {
666 mutex_unlock(&ha->vport_lock);
667 ql_log(ql_log_warn, base_vha, 0x00db,
668 "No resources to create additional request queue.\n");
671 set_bit(que_id, ha->req_qid_map);
672 ha->req_q_map[que_id] = req;
674 req->vp_idx = vp_idx;
677 ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
678 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
679 que_id, req->rid, req->vp_idx, req->qos);
680 ql_dbg(ql_dbg_init, base_vha, 0x00dc,
681 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
682 que_id, req->rid, req->vp_idx, req->qos);
686 req->rsp = ha->rsp_q_map[rsp_que];
687 /* Use alternate PCI bus number */
690 /* Use alternate PCI devfn */
693 req->options = options;
695 ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
696 "options=0x%x.\n", req->options);
697 ql_dbg(ql_dbg_init, base_vha, 0x00dd,
698 "options=0x%x.\n", req->options);
699 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
700 req->outstanding_cmds[cnt] = NULL;
701 req->current_outstanding_cmd = 1;
703 req->ring_ptr = req->ring;
705 req->cnt = req->length;
707 reg = ISP_QUE_REG(ha, que_id);
708 req->req_q_in = ®->isp25mq.req_q_in;
709 req->req_q_out = ®->isp25mq.req_q_out;
710 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
711 req->out_ptr = (void *)(req->ring + req->length);
712 mutex_unlock(&ha->vport_lock);
713 ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
714 "ring_ptr=%p ring_index=%d, "
715 "cnt=%d id=%d max_q_depth=%d.\n",
716 req->ring_ptr, req->ring_index,
717 req->cnt, req->id, req->max_q_depth);
718 ql_dbg(ql_dbg_init, base_vha, 0x00de,
719 "ring_ptr=%p ring_index=%d, "
720 "cnt=%d id=%d max_q_depth=%d.\n",
721 req->ring_ptr, req->ring_index, req->cnt,
722 req->id, req->max_q_depth);
724 ret = qla25xx_init_req_que(base_vha, req);
725 if (ret != QLA_SUCCESS) {
726 ql_log(ql_log_fatal, base_vha, 0x00df,
727 "%s failed.\n", __func__);
728 mutex_lock(&ha->vport_lock);
729 clear_bit(que_id, ha->req_qid_map);
730 mutex_unlock(&ha->vport_lock);
737 qla25xx_free_req_que(base_vha, req);
742 static void qla_do_work(struct work_struct *work)
745 struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
746 struct scsi_qla_host *vha;
747 struct qla_hw_data *ha = rsp->hw;
749 spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
750 vha = pci_get_drvdata(ha->pdev);
751 qla24xx_process_response_queue(vha, rsp);
752 spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags);
755 /* create response queue */
757 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
758 uint8_t vp_idx, uint16_t rid, int req)
761 struct rsp_que *rsp = NULL;
762 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
766 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
768 ql_log(ql_log_warn, base_vha, 0x0066,
769 "Failed to allocate memory for response queue.\n");
773 rsp->length = RESPONSE_ENTRY_CNT_MQ;
774 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
775 (rsp->length + 1) * sizeof(response_t),
776 &rsp->dma, GFP_KERNEL);
777 if (rsp->ring == NULL) {
778 ql_log(ql_log_warn, base_vha, 0x00e1,
779 "Failed to allocate memory for response ring.\n");
783 mutex_lock(&ha->vport_lock);
784 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
785 if (que_id >= ha->max_rsp_queues) {
786 mutex_unlock(&ha->vport_lock);
787 ql_log(ql_log_warn, base_vha, 0x00e2,
788 "No resources to create additional request queue.\n");
791 set_bit(que_id, ha->rsp_qid_map);
793 if (ha->flags.msix_enabled)
794 rsp->msix = &ha->msix_entries[que_id + 1];
796 ql_log(ql_log_warn, base_vha, 0x00e3,
797 "MSIX not enabled.\n");
799 ha->rsp_q_map[que_id] = rsp;
801 rsp->vp_idx = vp_idx;
803 ql_dbg(ql_dbg_init, base_vha, 0x00e4,
804 "queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
805 que_id, rsp->rid, rsp->vp_idx, rsp->hw);
806 /* Use alternate PCI bus number */
809 /* Use alternate PCI devfn */
812 /* Enable MSIX handshake mode on for uncapable adapters */
813 if (!IS_MSIX_NACK_CAPABLE(ha))
816 rsp->options = options;
818 reg = ISP_QUE_REG(ha, que_id);
819 rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
820 rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
821 rsp->in_ptr = (void *)(rsp->ring + rsp->length);
822 mutex_unlock(&ha->vport_lock);
823 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
824 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
825 rsp->options, rsp->id, rsp->rsp_q_in,
827 ql_dbg(ql_dbg_init, base_vha, 0x00e5,
828 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
829 rsp->options, rsp->id, rsp->rsp_q_in,
832 ret = qla25xx_request_irq(rsp);
836 ret = qla25xx_init_rsp_que(base_vha, rsp);
837 if (ret != QLA_SUCCESS) {
838 ql_log(ql_log_fatal, base_vha, 0x00e7,
839 "%s failed.\n", __func__);
840 mutex_lock(&ha->vport_lock);
841 clear_bit(que_id, ha->rsp_qid_map);
842 mutex_unlock(&ha->vport_lock);
846 rsp->req = ha->req_q_map[req];
850 qla2x00_init_response_q_entries(rsp);
852 INIT_WORK(&rsp->q_work, qla_do_work);
856 qla25xx_free_rsp_que(base_vha, rsp);