1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/slab.h>
30 #include <linux/spinlock.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_logmsg.h"
45 #include "lpfc_crtn.h"
46 #include "lpfc_version.h"
47 #include "lpfc_vport.h"
49 inline void lpfc_vport_set_state(struct lpfc_vport *vport,
50 enum fc_vport_state new_state)
52 struct fc_vport *fc_vport = vport->fc_vport;
56 * When the transport defines fc_vport_set state we will replace
57 * this code with the following line
59 /* fc_vport_set_state(fc_vport, new_state); */
60 if (new_state != FC_VPORT_INITIALIZING)
61 fc_vport->vport_last_state = fc_vport->vport_state;
62 fc_vport->vport_state = new_state;
65 /* for all the error states we will set the invternal state to FAILED */
67 case FC_VPORT_NO_FABRIC_SUPP:
68 case FC_VPORT_NO_FABRIC_RSCS:
69 case FC_VPORT_FABRIC_LOGOUT:
70 case FC_VPORT_FABRIC_REJ_WWN:
72 vport->port_state = LPFC_VPORT_FAILED;
74 case FC_VPORT_LINKDOWN:
75 vport->port_state = LPFC_VPORT_UNKNOWN;
84 lpfc_alloc_vpi(struct lpfc_hba *phba)
88 spin_lock_irq(&phba->hbalock);
89 /* Start at bit 1 because vpi zero is reserved for the physical port */
90 vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1);
91 if (vpi > phba->max_vpi)
94 set_bit(vpi, phba->vpi_bmask);
95 if (phba->sli_rev == LPFC_SLI_REV4)
96 phba->sli4_hba.max_cfg_param.vpi_used++;
97 spin_unlock_irq(&phba->hbalock);
102 lpfc_free_vpi(struct lpfc_hba *phba, int vpi)
106 spin_lock_irq(&phba->hbalock);
107 clear_bit(vpi, phba->vpi_bmask);
108 if (phba->sli_rev == LPFC_SLI_REV4)
109 phba->sli4_hba.max_cfg_param.vpi_used--;
110 spin_unlock_irq(&phba->hbalock);
114 lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport)
118 struct lpfc_dmabuf *mp;
121 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
127 rc = lpfc_read_sparam(phba, pmb, vport->vpi);
129 mempool_free(pmb, phba->mbox_mem_pool);
134 * Grab buffer pointer and clear context1 so we can use
135 * lpfc_sli_issue_box_wait
137 mp = (struct lpfc_dmabuf *) pmb->context1;
138 pmb->context1 = NULL;
141 rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2);
142 if (rc != MBX_SUCCESS) {
143 if (signal_pending(current)) {
144 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT,
145 "1830 Signal aborted mbxCmd x%x\n",
147 lpfc_mbuf_free(phba, mp->virt, mp->phys);
149 if (rc != MBX_TIMEOUT)
150 mempool_free(pmb, phba->mbox_mem_pool);
153 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT,
154 "1818 VPort failed init, mbxCmd x%x "
155 "READ_SPARM mbxStatus x%x, rc = x%x\n",
156 mb->mbxCommand, mb->mbxStatus, rc);
157 lpfc_mbuf_free(phba, mp->virt, mp->phys);
159 if (rc != MBX_TIMEOUT)
160 mempool_free(pmb, phba->mbox_mem_pool);
165 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
166 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
167 sizeof (struct lpfc_name));
168 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
169 sizeof (struct lpfc_name));
171 lpfc_mbuf_free(phba, mp->virt, mp->phys);
173 mempool_free(pmb, phba->mbox_mem_pool);
179 lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn,
180 const char *name_type)
182 /* ensure that IEEE format 1 addresses
183 * contain zeros in bits 59-48
185 if (!((wwn->u.wwn[0] >> 4) == 1 &&
186 ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0)))
189 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
190 "1822 Invalid %s: %02x:%02x:%02x:%02x:"
191 "%02x:%02x:%02x:%02x\n",
193 wwn->u.wwn[0], wwn->u.wwn[1],
194 wwn->u.wwn[2], wwn->u.wwn[3],
195 wwn->u.wwn[4], wwn->u.wwn[5],
196 wwn->u.wwn[6], wwn->u.wwn[7]);
201 lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport)
203 struct lpfc_vport *vport;
206 spin_lock_irqsave(&phba->hbalock, flags);
207 list_for_each_entry(vport, &phba->port_list, listentry) {
208 if (vport == new_vport)
210 /* If they match, return not unique */
211 if (memcmp(&vport->fc_sparam.portName,
212 &new_vport->fc_sparam.portName,
213 sizeof(struct lpfc_name)) == 0) {
214 spin_unlock_irqrestore(&phba->hbalock, flags);
218 spin_unlock_irqrestore(&phba->hbalock, flags);
223 * lpfc_discovery_wait - Wait for driver discovery to quiesce
224 * @vport: The virtual port for which this call is being executed.
226 * This driver calls this routine specifically from lpfc_vport_delete
227 * to enforce a synchronous execution of vport
228 * delete relative to discovery activities. The
229 * lpfc_vport_delete routine should not return until it
230 * can reasonably guarantee that discovery has quiesced.
231 * Post FDISC LOGO, the driver must wait until its SAN teardown is
232 * complete and all resources recovered before allowing
235 * This routine does not require any locks held.
237 static void lpfc_discovery_wait(struct lpfc_vport *vport)
239 struct lpfc_hba *phba = vport->phba;
240 uint32_t wait_flags = 0;
241 unsigned long wait_time_max;
242 unsigned long start_time;
244 wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE |
245 FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO;
248 * The time constraint on this loop is a balance between the
249 * fabric RA_TOV value and dev_loss tmo. The driver's
250 * devloss_tmo is 10 giving this loop a 3x multiplier minimally.
252 wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000);
253 wait_time_max += jiffies;
254 start_time = jiffies;
255 while (time_before(jiffies, wait_time_max)) {
256 if ((vport->num_disc_nodes > 0) ||
257 (vport->fc_flag & wait_flags) ||
258 ((vport->port_state > LPFC_VPORT_FAILED) &&
259 (vport->port_state < LPFC_VPORT_READY))) {
260 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
261 "1833 Vport discovery quiesce Wait:"
262 " state x%x fc_flags x%x"
263 " num_nodes x%x, waiting 1000 msecs"
264 " total wait msecs x%x\n",
265 vport->port_state, vport->fc_flag,
266 vport->num_disc_nodes,
267 jiffies_to_msecs(jiffies - start_time));
270 /* Base case. Wait variants satisfied. Break out */
271 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
272 "1834 Vport discovery quiesced:"
273 " state x%x fc_flags x%x"
275 vport->port_state, vport->fc_flag,
276 jiffies_to_msecs(jiffies
282 if (time_after(jiffies, wait_time_max))
283 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
284 "1835 Vport discovery quiesce failed:"
285 " state x%x fc_flags x%x wait msecs x%x\n",
286 vport->port_state, vport->fc_flag,
287 jiffies_to_msecs(jiffies - start_time));
291 lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
293 struct lpfc_nodelist *ndlp;
294 struct Scsi_Host *shost = fc_vport->shost;
295 struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata;
296 struct lpfc_hba *phba = pport->phba;
297 struct lpfc_vport *vport = NULL;
300 int rc = VPORT_ERROR;
303 if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) {
304 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
305 "1808 Create VPORT failed: "
306 "NPIV is not enabled: SLImode:%d\n",
312 vpi = lpfc_alloc_vpi(phba);
314 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
315 "1809 Create VPORT failed: "
316 "Max VPORTs (%d) exceeded\n",
318 rc = VPORT_NORESOURCES;
322 /* Assign an unused board number */
323 if ((instance = lpfc_get_instance()) < 0) {
324 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
325 "1810 Create VPORT failed: Cannot get "
326 "instance number\n");
327 lpfc_free_vpi(phba, vpi);
328 rc = VPORT_NORESOURCES;
332 vport = lpfc_create_port(phba, instance, &fc_vport->dev);
334 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
335 "1811 Create VPORT failed: vpi x%x\n", vpi);
336 lpfc_free_vpi(phba, vpi);
337 rc = VPORT_NORESOURCES;
342 lpfc_debugfs_initialize(vport);
344 if ((status = lpfc_vport_sparm(phba, vport))) {
345 if (status == -EINTR) {
346 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
347 "1831 Create VPORT Interrupted.\n");
350 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
351 "1813 Create VPORT failed. "
352 "Cannot get sparam\n");
353 rc = VPORT_NORESOURCES;
355 lpfc_free_vpi(phba, vpi);
360 u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn);
361 u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn);
363 memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8);
364 memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8);
366 if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") ||
367 !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) {
368 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
369 "1821 Create VPORT failed. "
370 "Invalid WWN format\n");
371 lpfc_free_vpi(phba, vpi);
377 if (!lpfc_unique_wwpn(phba, vport)) {
378 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
379 "1823 Create VPORT failed. "
380 "Duplicate WWN on HBA\n");
381 lpfc_free_vpi(phba, vpi);
387 /* Create binary sysfs attribute for vport */
388 lpfc_alloc_sysfs_attr(vport);
390 /* Set the DFT_LUN_Q_DEPTH accordingly */
391 vport->cfg_lun_queue_depth = phba->pport->cfg_lun_queue_depth;
393 *(struct lpfc_vport **)fc_vport->dd_data = vport;
394 vport->fc_vport = fc_vport;
396 /* At this point we are fully registered with SCSI Layer. */
397 vport->load_flag |= FC_ALLOW_FDMI;
398 if (phba->cfg_enable_SmartSAN ||
399 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
400 /* Setup appropriate attribute masks */
401 vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask;
402 vport->fdmi_port_mask = phba->pport->fdmi_port_mask;
406 * In SLI4, the vpi must be activated before it can be used
409 if ((phba->sli_rev == LPFC_SLI_REV4) &&
410 (pport->fc_flag & FC_VFI_REGISTERED)) {
411 rc = lpfc_sli4_init_vpi(vport);
413 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
414 "1838 Failed to INIT_VPI on vpi %d "
415 "status %d\n", vpi, rc);
416 rc = VPORT_NORESOURCES;
417 lpfc_free_vpi(phba, vpi);
420 } else if (phba->sli_rev == LPFC_SLI_REV4) {
422 * Driver cannot INIT_VPI now. Set the flags to
423 * init_vpi when reg_vfi complete.
425 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
426 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
431 if ((phba->link_state < LPFC_LINK_UP) ||
432 (pport->port_state < LPFC_FABRIC_CFG_LINK) ||
433 (phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {
434 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
440 lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
445 /* Use the Physical nodes Fabric NDLP to determine if the link is
446 * up and ready to FDISC.
448 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
449 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
450 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
451 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
452 lpfc_set_disctmo(vport);
453 lpfc_initial_fdisc(vport);
455 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
456 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
457 "0262 No NPIV Fabric support\n");
460 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
465 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
466 "1825 Vport Created.\n");
467 lpfc_host_attrib_init(lpfc_shost_from_vport(vport));
473 disable_vport(struct fc_vport *fc_vport)
475 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
476 struct lpfc_hba *phba = vport->phba;
477 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
479 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
481 ndlp = lpfc_findnode_did(vport, Fabric_DID);
482 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
483 && phba->link_state >= LPFC_LINK_UP) {
484 vport->unreg_vpi_cmpl = VPORT_INVAL;
485 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
486 if (!lpfc_issue_els_npiv_logo(vport, ndlp))
487 while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
488 timeout = schedule_timeout(timeout);
491 lpfc_sli_host_down(vport);
493 /* Mark all nodes for discovery so we can remove them by
494 * calling lpfc_cleanup_rpis(vport, 1)
496 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
497 if (!NLP_CHK_NODE_ACT(ndlp))
499 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
501 lpfc_disc_state_machine(vport, ndlp, NULL,
502 NLP_EVT_DEVICE_RECOVERY);
504 lpfc_cleanup_rpis(vport, 1);
506 lpfc_stop_vport_timers(vport);
507 lpfc_unreg_all_rpis(vport);
508 lpfc_unreg_default_rpis(vport);
510 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
511 * scsi_host_put() to release the vport.
513 lpfc_mbx_unreg_vpi(vport);
514 spin_lock_irq(shost->host_lock);
515 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
516 spin_unlock_irq(shost->host_lock);
518 lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
519 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
520 "1826 Vport Disabled.\n");
525 enable_vport(struct fc_vport *fc_vport)
527 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
528 struct lpfc_hba *phba = vport->phba;
529 struct lpfc_nodelist *ndlp = NULL;
530 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
532 if ((phba->link_state < LPFC_LINK_UP) ||
533 (phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {
534 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
538 spin_lock_irq(shost->host_lock);
539 vport->load_flag |= FC_LOADING;
540 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
541 spin_unlock_irq(shost->host_lock);
542 lpfc_issue_init_vpi(vport);
546 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
547 spin_unlock_irq(shost->host_lock);
549 /* Use the Physical nodes Fabric NDLP to determine if the link is
550 * up and ready to FDISC.
552 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
553 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
554 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
555 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
556 lpfc_set_disctmo(vport);
557 lpfc_initial_fdisc(vport);
559 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
560 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
561 "0264 No NPIV Fabric support\n");
564 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
568 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
569 "1827 Vport Enabled.\n");
574 lpfc_vport_disable(struct fc_vport *fc_vport, bool disable)
577 return disable_vport(fc_vport);
579 return enable_vport(fc_vport);
584 lpfc_vport_delete(struct fc_vport *fc_vport)
586 struct lpfc_nodelist *ndlp = NULL;
587 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
589 struct lpfc_hba *phba = vport->phba;
591 bool ns_ndlp_referenced = false;
593 if (vport->port_type == LPFC_PHYSICAL_PORT) {
594 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
595 "1812 vport_delete failed: Cannot delete "
600 /* If the vport is a static vport fail the deletion. */
601 if ((vport->vport_flag & STATIC_VPORT) &&
602 !(phba->pport->load_flag & FC_UNLOADING)) {
603 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
604 "1837 vport_delete failed: Cannot delete "
608 spin_lock_irq(&phba->hbalock);
609 vport->load_flag |= FC_UNLOADING;
610 spin_unlock_irq(&phba->hbalock);
612 * If we are not unloading the driver then prevent the vport_delete
613 * from happening until after this vport's discovery is finished.
615 if (!(phba->pport->load_flag & FC_UNLOADING)) {
617 while (check_count < ((phba->fc_ratov * 3) + 3) &&
618 vport->port_state > LPFC_VPORT_FAILED &&
619 vport->port_state < LPFC_VPORT_READY) {
623 if (vport->port_state > LPFC_VPORT_FAILED &&
624 vport->port_state < LPFC_VPORT_READY)
629 * Take early refcount for outstanding I/O requests we schedule during
630 * delete processing for unreg_vpi. Always keep this before
631 * scsi_remove_host() as we can no longer obtain a reference through
632 * scsi_host_get() after scsi_host_remove as shost is set to SHOST_DEL.
634 if (!scsi_host_get(shost))
637 lpfc_free_sysfs_attr(vport);
639 lpfc_debugfs_terminate(vport);
642 * The call to fc_remove_host might release the NameServer ndlp. Since
643 * we might need to use the ndlp to send the DA_ID CT command,
644 * increment the reference for the NameServer ndlp to prevent it from
647 ndlp = lpfc_findnode_did(vport, NameServer_DID);
648 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
650 ns_ndlp_referenced = true;
653 /* Remove FC host and then SCSI host with the vport */
654 fc_remove_host(shost);
655 scsi_remove_host(shost);
657 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
659 /* In case of driver unload, we shall not perform fabric logo as the
660 * worker thread already stopped at this stage and, in this case, we
661 * can safely skip the fabric logo.
663 if (phba->pport->load_flag & FC_UNLOADING) {
664 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
665 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
666 phba->link_state >= LPFC_LINK_UP) {
667 /* First look for the Fabric ndlp */
668 ndlp = lpfc_findnode_did(vport, Fabric_DID);
671 else if (!NLP_CHK_NODE_ACT(ndlp)) {
672 ndlp = lpfc_enable_node(vport, ndlp,
673 NLP_STE_UNUSED_NODE);
677 /* Remove ndlp from vport npld list */
678 lpfc_dequeue_node(vport, ndlp);
680 /* Indicate free memory when release */
681 spin_lock_irq(&phba->ndlp_lock);
682 NLP_SET_FREE_REQ(ndlp);
683 spin_unlock_irq(&phba->ndlp_lock);
684 /* Kick off release ndlp when it can be safely done */
690 /* Otherwise, we will perform fabric logo as needed */
691 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
692 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
693 phba->link_state >= LPFC_LINK_UP &&
694 phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
695 if (vport->cfg_enable_da_id) {
696 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
697 if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0))
698 while (vport->ct_flags && timeout)
699 timeout = schedule_timeout(timeout);
701 lpfc_printf_log(vport->phba, KERN_WARNING,
703 "1829 CT command failed to "
704 "delete objects on fabric\n");
706 /* First look for the Fabric ndlp */
707 ndlp = lpfc_findnode_did(vport, Fabric_DID);
709 /* Cannot find existing Fabric ndlp, allocate one */
710 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
713 lpfc_nlp_init(vport, ndlp, Fabric_DID);
714 /* Indicate free memory when release */
715 NLP_SET_FREE_REQ(ndlp);
717 if (!NLP_CHK_NODE_ACT(ndlp)) {
718 ndlp = lpfc_enable_node(vport, ndlp,
719 NLP_STE_UNUSED_NODE);
724 /* Remove ndlp from vport list */
725 lpfc_dequeue_node(vport, ndlp);
726 spin_lock_irq(&phba->ndlp_lock);
727 if (!NLP_CHK_FREE_REQ(ndlp))
728 /* Indicate free memory when release */
729 NLP_SET_FREE_REQ(ndlp);
731 /* Skip this if ndlp is already in free mode */
732 spin_unlock_irq(&phba->ndlp_lock);
735 spin_unlock_irq(&phba->ndlp_lock);
739 * If the vpi is not registered, then a valid FDISC doesn't
740 * exist and there is no need for a ELS LOGO. Just cleanup
743 if (!(vport->vpi_state & LPFC_VPI_REGISTERED)) {
748 vport->unreg_vpi_cmpl = VPORT_INVAL;
749 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
750 if (!lpfc_issue_els_npiv_logo(vport, ndlp))
751 while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
752 timeout = schedule_timeout(timeout);
755 if (!(phba->pport->load_flag & FC_UNLOADING))
756 lpfc_discovery_wait(vport);
761 * If the NameServer ndlp has been incremented to allow the DA_ID CT
762 * command to be sent, decrement the ndlp now.
764 if (ns_ndlp_referenced) {
765 ndlp = lpfc_findnode_did(vport, NameServer_DID);
770 lpfc_sli_host_down(vport);
772 lpfc_stop_vport_timers(vport);
774 if (!(phba->pport->load_flag & FC_UNLOADING)) {
775 lpfc_unreg_all_rpis(vport);
776 lpfc_unreg_default_rpis(vport);
778 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)
779 * does the scsi_host_put() to release the vport.
781 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) ||
782 lpfc_mbx_unreg_vpi(vport))
783 scsi_host_put(shost);
785 scsi_host_put(shost);
788 lpfc_free_vpi(phba, vport->vpi);
789 vport->work_port_events = 0;
790 spin_lock_irq(&phba->hbalock);
791 list_del_init(&vport->listentry);
792 spin_unlock_irq(&phba->hbalock);
793 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
794 "1828 Vport Deleted.\n");
795 scsi_host_put(shost);
800 lpfc_create_vport_work_array(struct lpfc_hba *phba)
802 struct lpfc_vport *port_iterator;
803 struct lpfc_vport **vports;
805 vports = kzalloc((phba->max_vports + 1) * sizeof(struct lpfc_vport *),
809 spin_lock_irq(&phba->hbalock);
810 list_for_each_entry(port_iterator, &phba->port_list, listentry) {
811 if (port_iterator->load_flag & FC_UNLOADING)
813 if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
814 lpfc_printf_vlog(port_iterator, KERN_ERR, LOG_VPORT,
815 "1801 Create vport work array FAILED: "
816 "cannot do scsi_host_get\n");
819 vports[index++] = port_iterator;
821 spin_unlock_irq(&phba->hbalock);
826 lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
831 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
832 scsi_host_put(lpfc_shost_from_vport(vports[i]));
838 * lpfc_vport_reset_stat_data - Reset the statistical data for the vport
839 * @vport: Pointer to vport object.
841 * This function resets the statistical data for the vport. This function
842 * is called with the host_lock held
845 lpfc_vport_reset_stat_data(struct lpfc_vport *vport)
847 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
849 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
850 if (!NLP_CHK_NODE_ACT(ndlp))
853 memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT *
854 sizeof(struct lpfc_scsicmd_bkt));
860 * lpfc_alloc_bucket - Allocate data buffer required for statistical data
861 * @vport: Pointer to vport object.
863 * This function allocates data buffer required for all the FC
864 * nodes of the vport to collect statistical data.
867 lpfc_alloc_bucket(struct lpfc_vport *vport)
869 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
871 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
872 if (!NLP_CHK_NODE_ACT(ndlp))
875 kfree(ndlp->lat_data);
876 ndlp->lat_data = NULL;
878 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
879 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
880 sizeof(struct lpfc_scsicmd_bkt),
884 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
885 "0287 lpfc_alloc_bucket failed to "
886 "allocate statistical data buffer DID "
887 "0x%x\n", ndlp->nlp_DID);
893 * lpfc_free_bucket - Free data buffer required for statistical data
894 * @vport: Pointer to vport object.
896 * Th function frees statistical data buffer of all the FC
897 * nodes of the vport.
900 lpfc_free_bucket(struct lpfc_vport *vport)
902 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
904 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
905 if (!NLP_CHK_NODE_ACT(ndlp))
908 kfree(ndlp->lat_data);
909 ndlp->lat_data = NULL;