1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2013 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
;
397 * In SLI4, the vpi must be activated before it can be used
400 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
401 (pport
->fc_flag
& FC_VFI_REGISTERED
)) {
402 rc
= lpfc_sli4_init_vpi(vport
);
404 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
405 "1838 Failed to INIT_VPI on vpi %d "
406 "status %d\n", vpi
, rc
);
407 rc
= VPORT_NORESOURCES
;
408 lpfc_free_vpi(phba
, vpi
);
411 } else if (phba
->sli_rev
== LPFC_SLI_REV4
) {
413 * Driver cannot INIT_VPI now. Set the flags to
414 * init_vpi when reg_vfi complete.
416 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
417 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
422 if ((phba
->link_state
< LPFC_LINK_UP
) ||
423 (pport
->port_state
< LPFC_FABRIC_CFG_LINK
) ||
424 (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)) {
425 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
431 lpfc_vport_set_state(vport
, FC_VPORT_DISABLED
);
436 /* Use the Physical nodes Fabric NDLP to determine if the link is
437 * up and ready to FDISC.
439 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
440 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
441 ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
442 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
) {
443 lpfc_set_disctmo(vport
);
444 lpfc_initial_fdisc(vport
);
446 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
447 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
448 "0262 No NPIV Fabric support\n");
451 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
456 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
457 "1825 Vport Created.\n");
458 lpfc_host_attrib_init(lpfc_shost_from_vport(vport
));
464 disable_vport(struct fc_vport
*fc_vport
)
466 struct lpfc_vport
*vport
= *(struct lpfc_vport
**)fc_vport
->dd_data
;
467 struct lpfc_hba
*phba
= vport
->phba
;
468 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
470 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
472 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
473 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
474 && phba
->link_state
>= LPFC_LINK_UP
) {
475 vport
->unreg_vpi_cmpl
= VPORT_INVAL
;
476 timeout
= msecs_to_jiffies(phba
->fc_ratov
* 2000);
477 if (!lpfc_issue_els_npiv_logo(vport
, ndlp
))
478 while (vport
->unreg_vpi_cmpl
== VPORT_INVAL
&& timeout
)
479 timeout
= schedule_timeout(timeout
);
482 lpfc_sli_host_down(vport
);
484 /* Mark all nodes for discovery so we can remove them by
485 * calling lpfc_cleanup_rpis(vport, 1)
487 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
488 if (!NLP_CHK_NODE_ACT(ndlp
))
490 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
492 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
493 NLP_EVT_DEVICE_RECOVERY
);
495 lpfc_cleanup_rpis(vport
, 1);
497 lpfc_stop_vport_timers(vport
);
498 lpfc_unreg_all_rpis(vport
);
499 lpfc_unreg_default_rpis(vport
);
501 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
502 * scsi_host_put() to release the vport.
504 lpfc_mbx_unreg_vpi(vport
);
505 spin_lock_irq(shost
->host_lock
);
506 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
507 spin_unlock_irq(shost
->host_lock
);
509 lpfc_vport_set_state(vport
, FC_VPORT_DISABLED
);
510 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
511 "1826 Vport Disabled.\n");
516 enable_vport(struct fc_vport
*fc_vport
)
518 struct lpfc_vport
*vport
= *(struct lpfc_vport
**)fc_vport
->dd_data
;
519 struct lpfc_hba
*phba
= vport
->phba
;
520 struct lpfc_nodelist
*ndlp
= NULL
;
521 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
523 if ((phba
->link_state
< LPFC_LINK_UP
) ||
524 (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)) {
525 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
529 spin_lock_irq(shost
->host_lock
);
530 vport
->load_flag
|= FC_LOADING
;
531 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
) {
532 spin_unlock_irq(shost
->host_lock
);
533 lpfc_issue_init_vpi(vport
);
537 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
538 spin_unlock_irq(shost
->host_lock
);
540 /* Use the Physical nodes Fabric NDLP to determine if the link is
541 * up and ready to FDISC.
543 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
544 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
545 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
546 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
) {
547 lpfc_set_disctmo(vport
);
548 lpfc_initial_fdisc(vport
);
550 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
551 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
552 "0264 No NPIV Fabric support\n");
555 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
559 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
560 "1827 Vport Enabled.\n");
565 lpfc_vport_disable(struct fc_vport
*fc_vport
, bool disable
)
568 return disable_vport(fc_vport
);
570 return enable_vport(fc_vport
);
575 lpfc_vport_delete(struct fc_vport
*fc_vport
)
577 struct lpfc_nodelist
*ndlp
= NULL
;
578 struct lpfc_vport
*vport
= *(struct lpfc_vport
**)fc_vport
->dd_data
;
579 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
580 struct lpfc_hba
*phba
= vport
->phba
;
582 bool ns_ndlp_referenced
= false;
584 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
585 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
586 "1812 vport_delete failed: Cannot delete "
591 /* If the vport is a static vport fail the deletion. */
592 if ((vport
->vport_flag
& STATIC_VPORT
) &&
593 !(phba
->pport
->load_flag
& FC_UNLOADING
)) {
594 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
595 "1837 vport_delete failed: Cannot delete "
599 spin_lock_irq(&phba
->hbalock
);
600 vport
->load_flag
|= FC_UNLOADING
;
601 spin_unlock_irq(&phba
->hbalock
);
603 * If we are not unloading the driver then prevent the vport_delete
604 * from happening until after this vport's discovery is finished.
606 if (!(phba
->pport
->load_flag
& FC_UNLOADING
)) {
608 while (check_count
< ((phba
->fc_ratov
* 3) + 3) &&
609 vport
->port_state
> LPFC_VPORT_FAILED
&&
610 vport
->port_state
< LPFC_VPORT_READY
) {
614 if (vport
->port_state
> LPFC_VPORT_FAILED
&&
615 vport
->port_state
< LPFC_VPORT_READY
)
619 * This is a bit of a mess. We want to ensure the shost doesn't get
620 * torn down until we're done with the embedded lpfc_vport structure.
622 * Beyond holding a reference for this function, we also need a
623 * reference for outstanding I/O requests we schedule during delete
624 * processing. But once we scsi_remove_host() we can no longer obtain
625 * a reference through scsi_host_get().
627 * So we take two references here. We release one reference at the
628 * bottom of the function -- after delinking the vport. And we
629 * release the other at the completion of the unreg_vpi that get's
630 * initiated after we've disposed of all other resources associated
633 if (!scsi_host_get(shost
))
635 if (!scsi_host_get(shost
)) {
636 scsi_host_put(shost
);
639 lpfc_free_sysfs_attr(vport
);
641 lpfc_debugfs_terminate(vport
);
644 * The call to fc_remove_host might release the NameServer ndlp. Since
645 * we might need to use the ndlp to send the DA_ID CT command,
646 * increment the reference for the NameServer ndlp to prevent it from
649 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
650 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
652 ns_ndlp_referenced
= true;
655 /* Remove FC host and then SCSI host with the vport */
656 fc_remove_host(shost
);
657 scsi_remove_host(shost
);
659 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
661 /* In case of driver unload, we shall not perform fabric logo as the
662 * worker thread already stopped at this stage and, in this case, we
663 * can safely skip the fabric logo.
665 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
666 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
667 ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
&&
668 phba
->link_state
>= LPFC_LINK_UP
) {
669 /* First look for the Fabric ndlp */
670 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
673 else if (!NLP_CHK_NODE_ACT(ndlp
)) {
674 ndlp
= lpfc_enable_node(vport
, ndlp
,
675 NLP_STE_UNUSED_NODE
);
679 /* Remove ndlp from vport npld list */
680 lpfc_dequeue_node(vport
, ndlp
);
682 /* Indicate free memory when release */
683 spin_lock_irq(&phba
->ndlp_lock
);
684 NLP_SET_FREE_REQ(ndlp
);
685 spin_unlock_irq(&phba
->ndlp_lock
);
686 /* Kick off release ndlp when it can be safely done */
692 /* Otherwise, we will perform fabric logo as needed */
693 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
694 ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
&&
695 phba
->link_state
>= LPFC_LINK_UP
&&
696 phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
697 if (vport
->cfg_enable_da_id
) {
698 timeout
= msecs_to_jiffies(phba
->fc_ratov
* 2000);
699 if (!lpfc_ns_cmd(vport
, SLI_CTNS_DA_ID
, 0, 0))
700 while (vport
->ct_flags
&& timeout
)
701 timeout
= schedule_timeout(timeout
);
703 lpfc_printf_log(vport
->phba
, KERN_WARNING
,
705 "1829 CT command failed to "
706 "delete objects on fabric\n");
708 /* First look for the Fabric ndlp */
709 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
711 /* Cannot find existing Fabric ndlp, allocate one */
712 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
715 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
716 /* Indicate free memory when release */
717 NLP_SET_FREE_REQ(ndlp
);
719 if (!NLP_CHK_NODE_ACT(ndlp
)) {
720 ndlp
= lpfc_enable_node(vport
, ndlp
,
721 NLP_STE_UNUSED_NODE
);
726 /* Remove ndlp from vport list */
727 lpfc_dequeue_node(vport
, ndlp
);
728 spin_lock_irq(&phba
->ndlp_lock
);
729 if (!NLP_CHK_FREE_REQ(ndlp
))
730 /* Indicate free memory when release */
731 NLP_SET_FREE_REQ(ndlp
);
733 /* Skip this if ndlp is already in free mode */
734 spin_unlock_irq(&phba
->ndlp_lock
);
737 spin_unlock_irq(&phba
->ndlp_lock
);
741 * If the vpi is not registered, then a valid FDISC doesn't
742 * exist and there is no need for a ELS LOGO. Just cleanup
745 if (!(vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
750 vport
->unreg_vpi_cmpl
= VPORT_INVAL
;
751 timeout
= msecs_to_jiffies(phba
->fc_ratov
* 2000);
752 if (!lpfc_issue_els_npiv_logo(vport
, ndlp
))
753 while (vport
->unreg_vpi_cmpl
== VPORT_INVAL
&& timeout
)
754 timeout
= schedule_timeout(timeout
);
757 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
758 lpfc_discovery_wait(vport
);
763 * If the NameServer ndlp has been incremented to allow the DA_ID CT
764 * command to be sent, decrement the ndlp now.
766 if (ns_ndlp_referenced
) {
767 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
772 lpfc_sli_host_down(vport
);
774 lpfc_stop_vport_timers(vport
);
776 if (!(phba
->pport
->load_flag
& FC_UNLOADING
)) {
777 lpfc_unreg_all_rpis(vport
);
778 lpfc_unreg_default_rpis(vport
);
780 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)
781 * does the scsi_host_put() to release the vport.
783 if (!(vport
->vpi_state
& LPFC_VPI_REGISTERED
) ||
784 lpfc_mbx_unreg_vpi(vport
))
785 scsi_host_put(shost
);
787 scsi_host_put(shost
);
789 lpfc_free_vpi(phba
, vport
->vpi
);
790 vport
->work_port_events
= 0;
791 spin_lock_irq(&phba
->hbalock
);
792 list_del_init(&vport
->listentry
);
793 spin_unlock_irq(&phba
->hbalock
);
794 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
795 "1828 Vport Deleted.\n");
796 scsi_host_put(shost
);
801 lpfc_create_vport_work_array(struct lpfc_hba
*phba
)
803 struct lpfc_vport
*port_iterator
;
804 struct lpfc_vport
**vports
;
806 vports
= kzalloc((phba
->max_vports
+ 1) * sizeof(struct lpfc_vport
*),
810 spin_lock_irq(&phba
->hbalock
);
811 list_for_each_entry(port_iterator
, &phba
->port_list
, listentry
) {
812 if (port_iterator
->load_flag
& FC_UNLOADING
)
814 if (!scsi_host_get(lpfc_shost_from_vport(port_iterator
))) {
815 lpfc_printf_vlog(port_iterator
, KERN_ERR
, LOG_VPORT
,
816 "1801 Create vport work array FAILED: "
817 "cannot do scsi_host_get\n");
820 vports
[index
++] = port_iterator
;
822 spin_unlock_irq(&phba
->hbalock
);
827 lpfc_destroy_vport_work_array(struct lpfc_hba
*phba
, struct lpfc_vport
**vports
)
832 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
833 scsi_host_put(lpfc_shost_from_vport(vports
[i
]));
839 * lpfc_vport_reset_stat_data - Reset the statistical data for the vport
840 * @vport: Pointer to vport object.
842 * This function resets the statistical data for the vport. This function
843 * is called with the host_lock held
846 lpfc_vport_reset_stat_data(struct lpfc_vport
*vport
)
848 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
850 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
851 if (!NLP_CHK_NODE_ACT(ndlp
))
854 memset(ndlp
->lat_data
, 0, LPFC_MAX_BUCKET_COUNT
*
855 sizeof(struct lpfc_scsicmd_bkt
));
861 * lpfc_alloc_bucket - Allocate data buffer required for statistical data
862 * @vport: Pointer to vport object.
864 * This function allocates data buffer required for all the FC
865 * nodes of the vport to collect statistical data.
868 lpfc_alloc_bucket(struct lpfc_vport
*vport
)
870 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
872 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
873 if (!NLP_CHK_NODE_ACT(ndlp
))
876 kfree(ndlp
->lat_data
);
877 ndlp
->lat_data
= NULL
;
879 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
) {
880 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
881 sizeof(struct lpfc_scsicmd_bkt
),
885 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
886 "0287 lpfc_alloc_bucket failed to "
887 "allocate statistical data buffer DID "
888 "0x%x\n", ndlp
->nlp_DID
);
894 * lpfc_free_bucket - Free data buffer required for statistical data
895 * @vport: Pointer to vport object.
897 * Th function frees statistical data buffer of all the FC
898 * nodes of the vport.
901 lpfc_free_bucket(struct lpfc_vport
*vport
)
903 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
905 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
906 if (!NLP_CHK_NODE_ACT(ndlp
))
909 kfree(ndlp
->lat_data
);
910 ndlp
->lat_data
= NULL
;