1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/idr.h>
28 #include <linux/interrupt.h>
29 #include <linux/kthread.h>
30 #include <linux/pci.h>
31 #include <linux/slab.h>
32 #include <linux/spinlock.h>
33 #include <linux/sched/signal.h>
35 #include <scsi/scsi.h>
36 #include <scsi/scsi_device.h>
37 #include <scsi/scsi_host.h>
38 #include <scsi/scsi_transport_fc.h>
43 #include "lpfc_sli4.h"
45 #include "lpfc_disc.h"
46 #include "lpfc_scsi.h"
48 #include "lpfc_logmsg.h"
49 #include "lpfc_crtn.h"
50 #include "lpfc_version.h"
51 #include "lpfc_vport.h"
53 inline void lpfc_vport_set_state(struct lpfc_vport *vport,
54 enum fc_vport_state new_state)
56 struct fc_vport *fc_vport = vport->fc_vport;
60 * When the transport defines fc_vport_set state we will replace
61 * this code with the following line
63 /* fc_vport_set_state(fc_vport, new_state); */
64 if (new_state != FC_VPORT_INITIALIZING)
65 fc_vport->vport_last_state = fc_vport->vport_state;
66 fc_vport->vport_state = new_state;
69 /* for all the error states we will set the invternal state to FAILED */
71 case FC_VPORT_NO_FABRIC_SUPP:
72 case FC_VPORT_NO_FABRIC_RSCS:
73 case FC_VPORT_FABRIC_LOGOUT:
74 case FC_VPORT_FABRIC_REJ_WWN:
76 vport->port_state = LPFC_VPORT_FAILED;
78 case FC_VPORT_LINKDOWN:
79 vport->port_state = LPFC_VPORT_UNKNOWN;
88 lpfc_alloc_vpi(struct lpfc_hba *phba)
92 spin_lock_irq(&phba->hbalock);
93 /* Start at bit 1 because vpi zero is reserved for the physical port */
94 vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1);
95 if (vpi > phba->max_vpi)
98 set_bit(vpi, phba->vpi_bmask);
99 if (phba->sli_rev == LPFC_SLI_REV4)
100 phba->sli4_hba.max_cfg_param.vpi_used++;
101 spin_unlock_irq(&phba->hbalock);
106 lpfc_free_vpi(struct lpfc_hba *phba, int vpi)
110 spin_lock_irq(&phba->hbalock);
111 clear_bit(vpi, phba->vpi_bmask);
112 if (phba->sli_rev == LPFC_SLI_REV4)
113 phba->sli4_hba.max_cfg_param.vpi_used--;
114 spin_unlock_irq(&phba->hbalock);
118 lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport)
122 struct lpfc_dmabuf *mp;
125 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
131 rc = lpfc_read_sparam(phba, pmb, vport->vpi);
133 mempool_free(pmb, phba->mbox_mem_pool);
138 * Grab buffer pointer and clear context1 so we can use
139 * lpfc_sli_issue_box_wait
141 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
145 rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2);
146 if (rc != MBX_SUCCESS) {
147 if (signal_pending(current)) {
148 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
149 "1830 Signal aborted mbxCmd x%x\n",
151 lpfc_mbuf_free(phba, mp->virt, mp->phys);
153 if (rc != MBX_TIMEOUT)
154 mempool_free(pmb, phba->mbox_mem_pool);
157 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
158 "1818 VPort failed init, mbxCmd x%x "
159 "READ_SPARM mbxStatus x%x, rc = x%x\n",
160 mb->mbxCommand, mb->mbxStatus, rc);
161 lpfc_mbuf_free(phba, mp->virt, mp->phys);
163 if (rc != MBX_TIMEOUT)
164 mempool_free(pmb, phba->mbox_mem_pool);
169 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
170 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
171 sizeof (struct lpfc_name));
172 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
173 sizeof (struct lpfc_name));
175 lpfc_mbuf_free(phba, mp->virt, mp->phys);
177 mempool_free(pmb, phba->mbox_mem_pool);
183 lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn,
184 const char *name_type)
186 /* ensure that IEEE format 1 addresses
187 * contain zeros in bits 59-48
189 if (!((wwn->u.wwn[0] >> 4) == 1 &&
190 ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0)))
193 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
194 "1822 Invalid %s: %02x:%02x:%02x:%02x:"
195 "%02x:%02x:%02x:%02x\n",
197 wwn->u.wwn[0], wwn->u.wwn[1],
198 wwn->u.wwn[2], wwn->u.wwn[3],
199 wwn->u.wwn[4], wwn->u.wwn[5],
200 wwn->u.wwn[6], wwn->u.wwn[7]);
205 lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport)
207 struct lpfc_vport *vport;
210 spin_lock_irqsave(&phba->port_list_lock, flags);
211 list_for_each_entry(vport, &phba->port_list, listentry) {
212 if (vport == new_vport)
214 /* If they match, return not unique */
215 if (memcmp(&vport->fc_sparam.portName,
216 &new_vport->fc_sparam.portName,
217 sizeof(struct lpfc_name)) == 0) {
218 spin_unlock_irqrestore(&phba->port_list_lock, flags);
222 spin_unlock_irqrestore(&phba->port_list_lock, flags);
227 * lpfc_discovery_wait - Wait for driver discovery to quiesce
228 * @vport: The virtual port for which this call is being executed.
230 * This driver calls this routine specifically from lpfc_vport_delete
231 * to enforce a synchronous execution of vport
232 * delete relative to discovery activities. The
233 * lpfc_vport_delete routine should not return until it
234 * can reasonably guarantee that discovery has quiesced.
235 * Post FDISC LOGO, the driver must wait until its SAN teardown is
236 * complete and all resources recovered before allowing
239 * This routine does not require any locks held.
241 static void lpfc_discovery_wait(struct lpfc_vport *vport)
243 struct lpfc_hba *phba = vport->phba;
244 uint32_t wait_flags = 0;
245 unsigned long wait_time_max;
246 unsigned long start_time;
248 wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE |
249 FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO;
252 * The time constraint on this loop is a balance between the
253 * fabric RA_TOV value and dev_loss tmo. The driver's
254 * devloss_tmo is 10 giving this loop a 3x multiplier minimally.
256 wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000);
257 wait_time_max += jiffies;
258 start_time = jiffies;
259 while (time_before(jiffies, wait_time_max)) {
260 if ((vport->num_disc_nodes > 0) ||
261 (vport->fc_flag & wait_flags) ||
262 ((vport->port_state > LPFC_VPORT_FAILED) &&
263 (vport->port_state < LPFC_VPORT_READY))) {
264 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
265 "1833 Vport discovery quiesce Wait:"
266 " state x%x fc_flags x%x"
267 " num_nodes x%x, waiting 1000 msecs"
268 " total wait msecs x%x\n",
269 vport->port_state, vport->fc_flag,
270 vport->num_disc_nodes,
271 jiffies_to_msecs(jiffies - start_time));
274 /* Base case. Wait variants satisfied. Break out */
275 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
276 "1834 Vport discovery quiesced:"
277 " state x%x fc_flags x%x"
279 vport->port_state, vport->fc_flag,
280 jiffies_to_msecs(jiffies
286 if (time_after(jiffies, wait_time_max))
287 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
288 "1835 Vport discovery quiesce failed:"
289 " state x%x fc_flags x%x wait msecs x%x\n",
290 vport->port_state, vport->fc_flag,
291 jiffies_to_msecs(jiffies - start_time));
295 lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
297 struct lpfc_nodelist *ndlp;
298 struct Scsi_Host *shost = fc_vport->shost;
299 struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata;
300 struct lpfc_hba *phba = pport->phba;
301 struct lpfc_vport *vport = NULL;
304 int rc = VPORT_ERROR;
307 if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) {
308 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
309 "1808 Create VPORT failed: "
310 "NPIV is not enabled: SLImode:%d\n",
316 /* NPIV is not supported if HBA has NVME Target enabled */
317 if (phba->nvmet_support) {
318 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
319 "3189 Create VPORT failed: "
320 "NPIV is not supported on NVME Target\n");
325 vpi = lpfc_alloc_vpi(phba);
327 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
328 "1809 Create VPORT failed: "
329 "Max VPORTs (%d) exceeded\n",
331 rc = VPORT_NORESOURCES;
335 /* Assign an unused board number */
336 if ((instance = lpfc_get_instance()) < 0) {
337 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
338 "1810 Create VPORT failed: Cannot get "
339 "instance number\n");
340 lpfc_free_vpi(phba, vpi);
341 rc = VPORT_NORESOURCES;
345 vport = lpfc_create_port(phba, instance, &fc_vport->dev);
347 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
348 "1811 Create VPORT failed: vpi x%x\n", vpi);
349 lpfc_free_vpi(phba, vpi);
350 rc = VPORT_NORESOURCES;
355 lpfc_debugfs_initialize(vport);
357 if ((status = lpfc_vport_sparm(phba, vport))) {
358 if (status == -EINTR) {
359 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
360 "1831 Create VPORT Interrupted.\n");
363 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
364 "1813 Create VPORT failed. "
365 "Cannot get sparam\n");
366 rc = VPORT_NORESOURCES;
368 lpfc_free_vpi(phba, vpi);
373 u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn);
374 u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn);
376 memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8);
377 memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8);
379 if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") ||
380 !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) {
381 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
382 "1821 Create VPORT failed. "
383 "Invalid WWN format\n");
384 lpfc_free_vpi(phba, vpi);
390 if (!lpfc_unique_wwpn(phba, vport)) {
391 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
392 "1823 Create VPORT failed. "
393 "Duplicate WWN on HBA\n");
394 lpfc_free_vpi(phba, vpi);
400 /* Create binary sysfs attribute for vport */
401 lpfc_alloc_sysfs_attr(vport);
403 /* Set the DFT_LUN_Q_DEPTH accordingly */
404 vport->cfg_lun_queue_depth = phba->pport->cfg_lun_queue_depth;
406 /* Only the physical port can support NVME for now */
407 vport->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
409 *(struct lpfc_vport **)fc_vport->dd_data = vport;
410 vport->fc_vport = fc_vport;
412 /* At this point we are fully registered with SCSI Layer. */
413 vport->load_flag |= FC_ALLOW_FDMI;
414 if (phba->cfg_enable_SmartSAN ||
415 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
416 /* Setup appropriate attribute masks */
417 vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask;
418 vport->fdmi_port_mask = phba->pport->fdmi_port_mask;
422 * In SLI4, the vpi must be activated before it can be used
425 if ((phba->sli_rev == LPFC_SLI_REV4) &&
426 (pport->fc_flag & FC_VFI_REGISTERED)) {
427 rc = lpfc_sli4_init_vpi(vport);
429 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
430 "1838 Failed to INIT_VPI on vpi %d "
431 "status %d\n", vpi, rc);
432 rc = VPORT_NORESOURCES;
433 lpfc_free_vpi(phba, vpi);
436 } else if (phba->sli_rev == LPFC_SLI_REV4) {
438 * Driver cannot INIT_VPI now. Set the flags to
439 * init_vpi when reg_vfi complete.
441 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
442 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
447 if ((phba->link_state < LPFC_LINK_UP) ||
448 (pport->port_state < LPFC_FABRIC_CFG_LINK) ||
449 (phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {
450 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
456 lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
461 /* Use the Physical nodes Fabric NDLP to determine if the link is
462 * up and ready to FDISC.
464 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
465 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
466 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
467 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
468 lpfc_set_disctmo(vport);
469 lpfc_initial_fdisc(vport);
471 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
472 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
473 "0262 No NPIV Fabric support\n");
476 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
481 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
482 "1825 Vport Created.\n");
483 lpfc_host_attrib_init(lpfc_shost_from_vport(vport));
489 disable_vport(struct fc_vport *fc_vport)
491 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
492 struct lpfc_hba *phba = vport->phba;
493 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
497 ndlp = lpfc_findnode_did(vport, Fabric_DID);
498 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
499 && phba->link_state >= LPFC_LINK_UP) {
500 vport->unreg_vpi_cmpl = VPORT_INVAL;
501 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
502 if (!lpfc_issue_els_npiv_logo(vport, ndlp))
503 while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
504 timeout = schedule_timeout(timeout);
507 lpfc_sli_host_down(vport);
509 /* Mark all nodes for discovery so we can remove them by
510 * calling lpfc_cleanup_rpis(vport, 1)
512 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
513 if (!NLP_CHK_NODE_ACT(ndlp))
515 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
517 lpfc_disc_state_machine(vport, ndlp, NULL,
518 NLP_EVT_DEVICE_RECOVERY);
520 lpfc_cleanup_rpis(vport, 1);
522 lpfc_stop_vport_timers(vport);
523 lpfc_unreg_all_rpis(vport);
524 lpfc_unreg_default_rpis(vport);
526 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
527 * scsi_host_put() to release the vport.
529 lpfc_mbx_unreg_vpi(vport);
530 if (phba->sli_rev == LPFC_SLI_REV4) {
531 spin_lock_irq(shost->host_lock);
532 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
533 spin_unlock_irq(shost->host_lock);
536 lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
537 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
538 "1826 Vport Disabled.\n");
543 enable_vport(struct fc_vport *fc_vport)
545 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
546 struct lpfc_hba *phba = vport->phba;
547 struct lpfc_nodelist *ndlp = NULL;
548 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
550 if ((phba->link_state < LPFC_LINK_UP) ||
551 (phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {
552 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
556 spin_lock_irq(shost->host_lock);
557 vport->load_flag |= FC_LOADING;
558 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
559 spin_unlock_irq(shost->host_lock);
560 lpfc_issue_init_vpi(vport);
564 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
565 spin_unlock_irq(shost->host_lock);
567 /* Use the Physical nodes Fabric NDLP to determine if the link is
568 * up and ready to FDISC.
570 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
571 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
572 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
573 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
574 lpfc_set_disctmo(vport);
575 lpfc_initial_fdisc(vport);
577 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
578 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
579 "0264 No NPIV Fabric support\n");
582 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
586 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
587 "1827 Vport Enabled.\n");
592 lpfc_vport_disable(struct fc_vport *fc_vport, bool disable)
595 return disable_vport(fc_vport);
597 return enable_vport(fc_vport);
602 lpfc_vport_delete(struct fc_vport *fc_vport)
604 struct lpfc_nodelist *ndlp = NULL;
605 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
607 struct lpfc_hba *phba = vport->phba;
609 bool ns_ndlp_referenced = false;
611 if (vport->port_type == LPFC_PHYSICAL_PORT) {
612 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
613 "1812 vport_delete failed: Cannot delete "
618 /* If the vport is a static vport fail the deletion. */
619 if ((vport->vport_flag & STATIC_VPORT) &&
620 !(phba->pport->load_flag & FC_UNLOADING)) {
621 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
622 "1837 vport_delete failed: Cannot delete "
626 spin_lock_irq(&phba->hbalock);
627 vport->load_flag |= FC_UNLOADING;
628 spin_unlock_irq(&phba->hbalock);
630 * If we are not unloading the driver then prevent the vport_delete
631 * from happening until after this vport's discovery is finished.
633 if (!(phba->pport->load_flag & FC_UNLOADING)) {
635 while (check_count < ((phba->fc_ratov * 3) + 3) &&
636 vport->port_state > LPFC_VPORT_FAILED &&
637 vport->port_state < LPFC_VPORT_READY) {
641 if (vport->port_state > LPFC_VPORT_FAILED &&
642 vport->port_state < LPFC_VPORT_READY)
647 * Take early refcount for outstanding I/O requests we schedule during
648 * delete processing for unreg_vpi. Always keep this before
649 * scsi_remove_host() as we can no longer obtain a reference through
650 * scsi_host_get() after scsi_host_remove as shost is set to SHOST_DEL.
652 if (!scsi_host_get(shost))
655 lpfc_free_sysfs_attr(vport);
657 lpfc_debugfs_terminate(vport);
660 * The call to fc_remove_host might release the NameServer ndlp. Since
661 * we might need to use the ndlp to send the DA_ID CT command,
662 * increment the reference for the NameServer ndlp to prevent it from
665 ndlp = lpfc_findnode_did(vport, NameServer_DID);
666 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
668 ns_ndlp_referenced = true;
671 /* Remove FC host and then SCSI host with the vport */
672 fc_remove_host(shost);
673 scsi_remove_host(shost);
675 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
677 /* In case of driver unload, we shall not perform fabric logo as the
678 * worker thread already stopped at this stage and, in this case, we
679 * can safely skip the fabric logo.
681 if (phba->pport->load_flag & FC_UNLOADING) {
682 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
683 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
684 phba->link_state >= LPFC_LINK_UP) {
685 /* First look for the Fabric ndlp */
686 ndlp = lpfc_findnode_did(vport, Fabric_DID);
689 else if (!NLP_CHK_NODE_ACT(ndlp)) {
690 ndlp = lpfc_enable_node(vport, ndlp,
691 NLP_STE_UNUSED_NODE);
695 /* Remove ndlp from vport npld list */
696 lpfc_dequeue_node(vport, ndlp);
698 /* Indicate free memory when release */
699 spin_lock_irq(&phba->ndlp_lock);
700 NLP_SET_FREE_REQ(ndlp);
701 spin_unlock_irq(&phba->ndlp_lock);
702 /* Kick off release ndlp when it can be safely done */
708 /* Otherwise, we will perform fabric logo as needed */
709 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
710 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
711 phba->link_state >= LPFC_LINK_UP &&
712 phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
713 if (vport->cfg_enable_da_id) {
714 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
715 if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0))
716 while (vport->ct_flags && timeout)
717 timeout = schedule_timeout(timeout);
719 lpfc_printf_log(vport->phba, KERN_WARNING,
721 "1829 CT command failed to "
722 "delete objects on fabric\n");
724 /* First look for the Fabric ndlp */
725 ndlp = lpfc_findnode_did(vport, Fabric_DID);
727 /* Cannot find existing Fabric ndlp, allocate one */
728 ndlp = lpfc_nlp_init(vport, Fabric_DID);
731 /* Indicate free memory when release */
732 NLP_SET_FREE_REQ(ndlp);
734 if (!NLP_CHK_NODE_ACT(ndlp)) {
735 ndlp = lpfc_enable_node(vport, ndlp,
736 NLP_STE_UNUSED_NODE);
741 /* Remove ndlp from vport list */
742 lpfc_dequeue_node(vport, ndlp);
743 spin_lock_irq(&phba->ndlp_lock);
744 if (!NLP_CHK_FREE_REQ(ndlp))
745 /* Indicate free memory when release */
746 NLP_SET_FREE_REQ(ndlp);
748 /* Skip this if ndlp is already in free mode */
749 spin_unlock_irq(&phba->ndlp_lock);
752 spin_unlock_irq(&phba->ndlp_lock);
756 * If the vpi is not registered, then a valid FDISC doesn't
757 * exist and there is no need for a ELS LOGO. Just cleanup
760 if (!(vport->vpi_state & LPFC_VPI_REGISTERED)) {
765 vport->unreg_vpi_cmpl = VPORT_INVAL;
766 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
767 if (!lpfc_issue_els_npiv_logo(vport, ndlp))
768 while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
769 timeout = schedule_timeout(timeout);
772 if (!(phba->pport->load_flag & FC_UNLOADING))
773 lpfc_discovery_wait(vport);
778 * If the NameServer ndlp has been incremented to allow the DA_ID CT
779 * command to be sent, decrement the ndlp now.
781 if (ns_ndlp_referenced) {
782 ndlp = lpfc_findnode_did(vport, NameServer_DID);
787 lpfc_sli_host_down(vport);
789 lpfc_stop_vport_timers(vport);
791 if (!(phba->pport->load_flag & FC_UNLOADING)) {
792 lpfc_unreg_all_rpis(vport);
793 lpfc_unreg_default_rpis(vport);
795 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)
796 * does the scsi_host_put() to release the vport.
798 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) ||
799 lpfc_mbx_unreg_vpi(vport))
800 scsi_host_put(shost);
802 scsi_host_put(shost);
805 lpfc_free_vpi(phba, vport->vpi);
806 vport->work_port_events = 0;
807 spin_lock_irq(&phba->port_list_lock);
808 list_del_init(&vport->listentry);
809 spin_unlock_irq(&phba->port_list_lock);
810 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
811 "1828 Vport Deleted.\n");
812 scsi_host_put(shost);
817 lpfc_create_vport_work_array(struct lpfc_hba *phba)
819 struct lpfc_vport *port_iterator;
820 struct lpfc_vport **vports;
822 vports = kcalloc(phba->max_vports + 1, sizeof(struct lpfc_vport *),
826 spin_lock_irq(&phba->port_list_lock);
827 list_for_each_entry(port_iterator, &phba->port_list, listentry) {
828 if (port_iterator->load_flag & FC_UNLOADING)
830 if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
831 lpfc_printf_vlog(port_iterator, KERN_ERR,
833 "1801 Create vport work array FAILED: "
834 "cannot do scsi_host_get\n");
837 vports[index++] = port_iterator;
839 spin_unlock_irq(&phba->port_list_lock);
844 lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
849 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
850 scsi_host_put(lpfc_shost_from_vport(vports[i]));
856 * lpfc_vport_reset_stat_data - Reset the statistical data for the vport
857 * @vport: Pointer to vport object.
859 * This function resets the statistical data for the vport. This function
860 * is called with the host_lock held
863 lpfc_vport_reset_stat_data(struct lpfc_vport *vport)
865 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
867 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
868 if (!NLP_CHK_NODE_ACT(ndlp))
871 memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT *
872 sizeof(struct lpfc_scsicmd_bkt));
878 * lpfc_alloc_bucket - Allocate data buffer required for statistical data
879 * @vport: Pointer to vport object.
881 * This function allocates data buffer required for all the FC
882 * nodes of the vport to collect statistical data.
885 lpfc_alloc_bucket(struct lpfc_vport *vport)
887 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
889 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
890 if (!NLP_CHK_NODE_ACT(ndlp))
893 kfree(ndlp->lat_data);
894 ndlp->lat_data = NULL;
896 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
897 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
898 sizeof(struct lpfc_scsicmd_bkt),
902 lpfc_printf_vlog(vport, KERN_ERR,
904 "0287 lpfc_alloc_bucket failed to "
905 "allocate statistical data buffer DID "
906 "0x%x\n", ndlp->nlp_DID);
912 * lpfc_free_bucket - Free data buffer required for statistical data
913 * @vport: Pointer to vport object.
915 * Th function frees statistical data buffer of all the FC
916 * nodes of the vport.
919 lpfc_free_bucket(struct lpfc_vport *vport)
921 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
923 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
924 if (!NLP_CHK_NODE_ACT(ndlp))
927 kfree(ndlp->lat_data);
928 ndlp->lat_data = NULL;