2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
10 #include <linux/moduleparam.h>
11 #include <linux/vmalloc.h>
12 #include <linux/list.h>
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <linux/delay.h>
19 qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
21 if (vha->vp_idx && vha->timer_active) {
22 del_timer_sync(&vha->timer);
23 vha->timer_active = 0;
28 qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
31 struct qla_hw_data *ha = vha->hw;
33 /* Find an empty slot and assign an vp_id */
34 mutex_lock(&ha->vport_lock);
35 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
36 if (vp_id > ha->max_npiv_vports) {
37 DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
38 vp_id, ha->max_npiv_vports));
39 mutex_unlock(&ha->vport_lock);
43 set_bit(vp_id, ha->vp_idx_map);
45 ha->cur_vport_count++;
47 list_add_tail(&vha->list, &ha->vp_list);
48 mutex_unlock(&ha->vport_lock);
53 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
56 struct qla_hw_data *ha = vha->hw;
58 mutex_lock(&ha->vport_lock);
61 ha->cur_vport_count--;
62 clear_bit(vp_id, ha->vp_idx_map);
64 mutex_unlock(&ha->vport_lock);
67 static scsi_qla_host_t *
68 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
71 struct scsi_qla_host *tvha;
73 /* Locate matching device in database. */
74 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
75 if (!memcmp(port_name, vha->port_name, WWN_SIZE))
82 * qla2x00_mark_vp_devices_dead
83 * Updates fcport state when device goes offline.
86 * ha = adapter block pointer.
87 * fcport = port structure pointer.
95 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
99 list_for_each_entry(fcport, &vha->vp_fcports, list) {
100 DEBUG15(printk("scsi(%ld): Marking port dead, "
101 "loop_id=0x%04x :%x\n",
102 vha->host_no, fcport->loop_id, fcport->vp_idx));
104 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
105 qla2x00_mark_device_lost(vha, fcport, 0, 0);
106 atomic_set(&fcport->state, FCS_UNCONFIGURED);
111 qla24xx_disable_vp(scsi_qla_host_t *vha)
115 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
116 atomic_set(&vha->loop_state, LOOP_DOWN);
117 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
119 qla2x00_mark_vp_devices_dead(vha);
120 atomic_set(&vha->vp_state, VP_FAILED);
121 vha->flags.management_server_logged_in = 0;
122 if (ret == QLA_SUCCESS) {
123 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
125 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
132 qla24xx_enable_vp(scsi_qla_host_t *vha)
135 struct qla_hw_data *ha = vha->hw;
136 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
138 /* Check if physical ha port is Up */
139 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
140 atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
141 vha->vp_err_state = VP_ERR_PORTDWN;
142 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
146 /* Initialize the new vport unless it is a persistent port */
147 mutex_lock(&ha->vport_lock);
148 ret = qla24xx_modify_vp_config(vha);
149 mutex_unlock(&ha->vport_lock);
151 if (ret != QLA_SUCCESS) {
152 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
156 DEBUG15(qla_printk(KERN_INFO, ha,
157 "Virtual port with id: %d - Enabled\n", vha->vp_idx));
161 DEBUG15(qla_printk(KERN_INFO, ha,
162 "Virtual port with id: %d - Disabled\n", vha->vp_idx));
167 qla24xx_configure_vp(scsi_qla_host_t *vha)
169 struct fc_vport *fc_vport;
172 fc_vport = vha->fc_vport;
174 DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
175 vha->host_no, __func__));
176 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
177 if (ret != QLA_SUCCESS) {
178 DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable "
179 "receiving of RSCN requests: 0x%x\n", ret));
182 /* Corresponds to SCR enabled */
183 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
186 vha->flags.online = 1;
187 if (qla24xx_configure_vhba(vha))
190 atomic_set(&vha->vp_state, VP_ACTIVE);
191 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
195 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
197 scsi_qla_host_t *vha, *tvha;
198 struct qla_hw_data *ha = rsp->hw;
201 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
204 case MBA_LIP_OCCURRED:
208 case MBA_POINT_TO_POINT:
209 case MBA_CHG_IN_CONNECTION:
210 case MBA_PORT_UPDATE:
211 case MBA_RSCN_UPDATE:
212 DEBUG15(printk("scsi(%ld)%s: Async_event for"
213 " VP[%d], mb = 0x%x, vha=%p\n",
214 vha->host_no, __func__, i, *mb, vha));
215 qla2x00_async_event(vha, rsp, mb);
224 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
227 * Physical port will do most of the abort and recovery work. We can
228 * just treat it as a loop down
230 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
231 atomic_set(&vha->loop_state, LOOP_DOWN);
232 qla2x00_mark_all_devices_lost(vha, 0);
234 if (!atomic_read(&vha->loop_down_timer))
235 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
238 /* To exclusively reset vport, we need to log it out first.*/
239 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
240 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
242 DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
243 vha->host_no, vha->vp_idx));
244 return qla24xx_enable_vp(vha);
248 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
250 struct qla_hw_data *ha = vha->hw;
251 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
253 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
254 /* VP acquired. complete port configuration */
255 if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
256 qla24xx_configure_vp(vha);
258 set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
259 set_bit(VP_DPC_NEEDED, &base_vha->dpc_flags);
265 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
266 qla2x00_update_fcports(vha);
267 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
270 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
271 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
272 atomic_read(&vha->loop_state) != LOOP_DOWN) {
274 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
276 qla2x00_relogin(vha);
278 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
282 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
283 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
284 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
287 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
288 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
289 qla2x00_loop_resync(vha);
290 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
298 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
301 struct qla_hw_data *ha = vha->hw;
303 struct scsi_qla_host *tvp;
307 if (list_empty(&ha->vp_list))
310 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
312 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
314 ret = qla2x00_do_dpc_vp(vp);
319 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
321 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
322 struct qla_hw_data *ha = base_vha->hw;
323 scsi_qla_host_t *vha;
324 uint8_t port_name[WWN_SIZE];
326 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
327 return VPCERR_UNSUPPORTED;
329 /* Check up the F/W and H/W support NPIV */
330 if (!ha->flags.npiv_supported)
331 return VPCERR_UNSUPPORTED;
333 /* Check up whether npiv supported switch presented */
334 if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
335 return VPCERR_NO_FABRIC_SUPP;
337 /* Check up unique WWPN */
338 u64_to_wwn(fc_vport->port_name, port_name);
339 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
340 return VPCERR_BAD_WWN;
341 vha = qla24xx_find_vhost_by_name(ha, port_name);
343 return VPCERR_BAD_WWN;
345 /* Check up max-npiv-supports */
346 if (ha->num_vhosts > ha->max_npiv_vports) {
347 DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
348 "max_npv_vports %ud.\n", base_vha->host_no,
349 ha->num_vhosts, ha->max_npiv_vports));
350 return VPCERR_UNSUPPORTED;
356 qla24xx_create_vhost(struct fc_vport *fc_vport)
358 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
359 struct qla_hw_data *ha = base_vha->hw;
360 scsi_qla_host_t *vha;
361 struct scsi_host_template *sht = &qla2xxx_driver_template;
362 struct Scsi_Host *host;
364 vha = qla2x00_create_host(sht, ha);
366 DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
371 fc_vport->dd_data = vha;
373 u64_to_wwn(fc_vport->node_name, vha->node_name);
374 u64_to_wwn(fc_vport->port_name, vha->port_name);
376 vha->fc_vport = fc_vport;
377 vha->device_flags = 0;
378 vha->vp_idx = qla24xx_allocate_vp_id(vha);
379 if (vha->vp_idx > ha->max_npiv_vports) {
380 DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
382 goto create_vhost_failed;
384 vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
387 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
388 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
391 * To fix the issue of processing a parent's RSCN for the vport before
392 * its SCR is complete.
394 set_bit(VP_SCR_NEEDED, &vha->vp_flags);
395 atomic_set(&vha->loop_state, LOOP_DOWN);
396 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
398 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
400 vha->req = base_vha->req;
401 host->can_queue = base_vha->req->length + 128;
403 host->cmd_per_lun = 3;
404 host->max_cmd_len = MAX_CMDSZ;
405 host->max_channel = MAX_BUSES - 1;
406 host->max_lun = MAX_LUNS;
407 host->unique_id = host->host_no;
408 host->max_id = MAX_TARGETS_2200;
409 host->transportt = qla2xxx_transport_vport_template;
411 DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
414 vha->flags.init_done = 1;
423 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
425 struct qla_hw_data *ha = vha->hw;
426 uint16_t que_id = req->id;
428 dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
429 sizeof(request_t), req->ring, req->dma);
433 ha->req_q_map[que_id] = NULL;
434 mutex_lock(&ha->vport_lock);
435 clear_bit(que_id, ha->req_qid_map);
436 mutex_unlock(&ha->vport_lock);
443 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
445 struct qla_hw_data *ha = vha->hw;
446 uint16_t que_id = rsp->id;
448 if (rsp->msix && rsp->msix->have_irq) {
449 free_irq(rsp->msix->vector, rsp);
450 rsp->msix->have_irq = 0;
451 rsp->msix->rsp = NULL;
453 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
454 sizeof(response_t), rsp->ring, rsp->dma);
458 ha->rsp_q_map[que_id] = NULL;
459 mutex_lock(&ha->vport_lock);
460 clear_bit(que_id, ha->rsp_qid_map);
461 mutex_unlock(&ha->vport_lock);
468 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
473 req->options |= BIT_0;
474 ret = qla25xx_init_req_que(vha, req);
476 if (ret == QLA_SUCCESS)
477 qla25xx_free_req_que(vha, req);
483 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
488 rsp->options |= BIT_0;
489 ret = qla25xx_init_rsp_que(vha, rsp);
491 if (ret == QLA_SUCCESS)
492 qla25xx_free_rsp_que(vha, rsp);
497 int qla25xx_update_req_que(struct scsi_qla_host *vha, uint8_t que, uint8_t qos)
500 struct qla_hw_data *ha = vha->hw;
501 struct req_que *req = ha->req_q_map[que];
503 req->options |= BIT_3;
505 ret = qla25xx_init_req_que(vha, req);
506 if (ret != QLA_SUCCESS)
507 DEBUG2_17(printk(KERN_WARNING "%s failed\n", __func__));
508 /* restore options bit */
509 req->options &= ~BIT_3;
514 /* Delete all queues for a given vhost */
516 qla25xx_delete_queues(struct scsi_qla_host *vha)
519 struct req_que *req = NULL;
520 struct rsp_que *rsp = NULL;
521 struct qla_hw_data *ha = vha->hw;
523 /* Delete request queues */
524 for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
525 req = ha->req_q_map[cnt];
527 ret = qla25xx_delete_req_que(vha, req);
528 if (ret != QLA_SUCCESS) {
529 qla_printk(KERN_WARNING, ha,
530 "Couldn't delete req que %d\n",
537 /* Delete response queues */
538 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
539 rsp = ha->rsp_q_map[cnt];
541 ret = qla25xx_delete_rsp_que(vha, rsp);
542 if (ret != QLA_SUCCESS) {
543 qla_printk(KERN_WARNING, ha,
544 "Couldn't delete rsp que %d\n",
554 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
555 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
558 struct req_que *req = NULL;
559 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
561 device_reg_t __iomem *reg;
564 req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
566 qla_printk(KERN_WARNING, ha, "could not allocate memory"
567 "for request que\n");
571 req->length = REQUEST_ENTRY_CNT_24XX;
572 req->ring = dma_alloc_coherent(&ha->pdev->dev,
573 (req->length + 1) * sizeof(request_t),
574 &req->dma, GFP_KERNEL);
575 if (req->ring == NULL) {
576 qla_printk(KERN_WARNING, ha,
577 "Memory Allocation failed - request_ring\n");
581 mutex_lock(&ha->vport_lock);
582 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
583 if (que_id >= ha->max_req_queues) {
584 mutex_unlock(&ha->vport_lock);
585 qla_printk(KERN_INFO, ha, "No resources to create "
586 "additional request queue\n");
589 set_bit(que_id, ha->req_qid_map);
590 ha->req_q_map[que_id] = req;
592 req->vp_idx = vp_idx;
598 req->rsp = ha->rsp_q_map[rsp_que];
599 /* Use alternate PCI bus number */
602 /* Use alternate PCI devfn */
605 req->options = options;
607 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
608 req->outstanding_cmds[cnt] = NULL;
609 req->current_outstanding_cmd = 1;
611 req->ring_ptr = req->ring;
613 req->cnt = req->length;
615 reg = ISP_QUE_REG(ha, que_id);
616 req->max_q_depth = ha->req_q_map[0]->max_q_depth;
617 mutex_unlock(&ha->vport_lock);
619 ret = qla25xx_init_req_que(base_vha, req);
620 if (ret != QLA_SUCCESS) {
621 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
622 mutex_lock(&ha->vport_lock);
623 clear_bit(que_id, ha->req_qid_map);
624 mutex_unlock(&ha->vport_lock);
631 qla25xx_free_req_que(base_vha, req);
635 static void qla_do_work(struct work_struct *work)
637 struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
638 struct scsi_qla_host *vha;
640 vha = qla25xx_get_host(rsp);
641 qla24xx_process_response_queue(vha, rsp);
644 /* create response queue */
646 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
647 uint8_t vp_idx, uint16_t rid, int req)
650 struct rsp_que *rsp = NULL;
651 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
653 device_reg_t __iomem *reg;
655 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
657 qla_printk(KERN_WARNING, ha, "could not allocate memory for"
662 rsp->length = RESPONSE_ENTRY_CNT_MQ;
663 rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
664 (rsp->length + 1) * sizeof(response_t),
665 &rsp->dma, GFP_KERNEL);
666 if (rsp->ring == NULL) {
667 qla_printk(KERN_WARNING, ha,
668 "Memory Allocation failed - response_ring\n");
672 mutex_lock(&ha->vport_lock);
673 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
674 if (que_id >= ha->max_rsp_queues) {
675 mutex_unlock(&ha->vport_lock);
676 qla_printk(KERN_INFO, ha, "No resources to create "
677 "additional response queue\n");
680 set_bit(que_id, ha->rsp_qid_map);
682 if (ha->flags.msix_enabled)
683 rsp->msix = &ha->msix_entries[que_id + 1];
685 qla_printk(KERN_WARNING, ha, "msix not enabled\n");
687 ha->rsp_q_map[que_id] = rsp;
689 rsp->vp_idx = vp_idx;
691 /* Use alternate PCI bus number */
694 /* Use alternate PCI devfn */
697 rsp->options = options;
699 reg = ISP_QUE_REG(ha, que_id);
700 rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
701 rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
702 mutex_unlock(&ha->vport_lock);
704 ret = qla25xx_request_irq(rsp);
708 ret = qla25xx_init_rsp_que(base_vha, rsp);
709 if (ret != QLA_SUCCESS) {
710 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
711 mutex_lock(&ha->vport_lock);
712 clear_bit(que_id, ha->rsp_qid_map);
713 mutex_unlock(&ha->vport_lock);
717 rsp->req = ha->req_q_map[req];
721 qla2x00_init_response_q_entries(rsp);
723 INIT_WORK(&rsp->q_work, qla_do_work);
727 qla25xx_free_rsp_que(base_vha, rsp);
732 qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos)
734 uint16_t options = 0;
736 struct qla_hw_data *ha = vha->hw;
740 ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0, -1);
742 qla_printk(KERN_WARNING, ha, "Response Que create failed\n");
745 qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret);
746 rsp = ha->rsp_q_map[ret];
751 ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret,
754 vha->req = ha->req_q_map[ret];
755 qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret);
757 qla_printk(KERN_WARNING, ha, "Request Que create failed\n");
758 rsp->req = ha->req_q_map[ret];