1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2008 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/spinlock.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_transport_fc.h>
38 #include "lpfc_sli4.h"
40 #include "lpfc_disc.h"
41 #include "lpfc_scsi.h"
43 #include "lpfc_logmsg.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_version.h"
46 #include "lpfc_vport.h"
48 inline void lpfc_vport_set_state(struct lpfc_vport
*vport
,
49 enum fc_vport_state new_state
)
51 struct fc_vport
*fc_vport
= vport
->fc_vport
;
55 * When the transport defines fc_vport_set state we will replace
56 * this code with the following line
58 /* fc_vport_set_state(fc_vport, new_state); */
59 if (new_state
!= FC_VPORT_INITIALIZING
)
60 fc_vport
->vport_last_state
= fc_vport
->vport_state
;
61 fc_vport
->vport_state
= new_state
;
64 /* for all the error states we will set the invternal state to FAILED */
66 case FC_VPORT_NO_FABRIC_SUPP
:
67 case FC_VPORT_NO_FABRIC_RSCS
:
68 case FC_VPORT_FABRIC_LOGOUT
:
69 case FC_VPORT_FABRIC_REJ_WWN
:
71 vport
->port_state
= LPFC_VPORT_FAILED
;
73 case FC_VPORT_LINKDOWN
:
74 vport
->port_state
= LPFC_VPORT_UNKNOWN
;
83 lpfc_alloc_vpi(struct lpfc_hba
*phba
)
87 spin_lock_irq(&phba
->hbalock
);
88 /* Start at bit 1 because vpi zero is reserved for the physical port */
89 vpi
= find_next_zero_bit(phba
->vpi_bmask
, (phba
->max_vpi
+ 1), 1);
90 if (vpi
> phba
->max_vpi
)
93 set_bit(vpi
, phba
->vpi_bmask
);
94 if (phba
->sli_rev
== LPFC_SLI_REV4
)
95 phba
->sli4_hba
.max_cfg_param
.vpi_used
++;
96 spin_unlock_irq(&phba
->hbalock
);
101 lpfc_free_vpi(struct lpfc_hba
*phba
, int vpi
)
105 spin_lock_irq(&phba
->hbalock
);
106 clear_bit(vpi
, phba
->vpi_bmask
);
107 if (phba
->sli_rev
== LPFC_SLI_REV4
)
108 phba
->sli4_hba
.max_cfg_param
.vpi_used
--;
109 spin_unlock_irq(&phba
->hbalock
);
113 lpfc_vport_sparm(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
117 struct lpfc_dmabuf
*mp
;
120 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
126 lpfc_read_sparam(phba
, pmb
, vport
->vpi
);
128 * Grab buffer pointer and clear context1 so we can use
129 * lpfc_sli_issue_box_wait
131 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
132 pmb
->context1
= NULL
;
135 rc
= lpfc_sli_issue_mbox_wait(phba
, pmb
, phba
->fc_ratov
* 2);
136 if (rc
!= MBX_SUCCESS
) {
137 if (signal_pending(current
)) {
138 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
139 "1830 Signal aborted mbxCmd x%x\n",
141 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
143 if (rc
!= MBX_TIMEOUT
)
144 mempool_free(pmb
, phba
->mbox_mem_pool
);
147 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
148 "1818 VPort failed init, mbxCmd x%x "
149 "READ_SPARM mbxStatus x%x, rc = x%x\n",
150 mb
->mbxCommand
, mb
->mbxStatus
, rc
);
151 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
153 if (rc
!= MBX_TIMEOUT
)
154 mempool_free(pmb
, phba
->mbox_mem_pool
);
159 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof (struct serv_parm
));
160 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
161 sizeof (struct lpfc_name
));
162 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
163 sizeof (struct lpfc_name
));
165 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
167 mempool_free(pmb
, phba
->mbox_mem_pool
);
173 lpfc_valid_wwn_format(struct lpfc_hba
*phba
, struct lpfc_name
*wwn
,
174 const char *name_type
)
176 /* ensure that IEEE format 1 addresses
177 * contain zeros in bits 59-48
179 if (!((wwn
->u
.wwn
[0] >> 4) == 1 &&
180 ((wwn
->u
.wwn
[0] & 0xf) != 0 || (wwn
->u
.wwn
[1] & 0xf) != 0)))
183 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
184 "1822 Invalid %s: %02x:%02x:%02x:%02x:"
185 "%02x:%02x:%02x:%02x\n",
187 wwn
->u
.wwn
[0], wwn
->u
.wwn
[1],
188 wwn
->u
.wwn
[2], wwn
->u
.wwn
[3],
189 wwn
->u
.wwn
[4], wwn
->u
.wwn
[5],
190 wwn
->u
.wwn
[6], wwn
->u
.wwn
[7]);
195 lpfc_unique_wwpn(struct lpfc_hba
*phba
, struct lpfc_vport
*new_vport
)
197 struct lpfc_vport
*vport
;
200 spin_lock_irqsave(&phba
->hbalock
, flags
);
201 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
202 if (vport
== new_vport
)
204 /* If they match, return not unique */
205 if (memcmp(&vport
->fc_sparam
.portName
,
206 &new_vport
->fc_sparam
.portName
,
207 sizeof(struct lpfc_name
)) == 0) {
208 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
212 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
217 * lpfc_discovery_wait - Wait for driver discovery to quiesce
218 * @vport: The virtual port for which this call is being executed.
220 * This driver calls this routine specifically from lpfc_vport_delete
221 * to enforce a synchronous execution of vport
222 * delete relative to discovery activities. The
223 * lpfc_vport_delete routine should not return until it
224 * can reasonably guarantee that discovery has quiesced.
225 * Post FDISC LOGO, the driver must wait until its SAN teardown is
226 * complete and all resources recovered before allowing
229 * This routine does not require any locks held.
231 static void lpfc_discovery_wait(struct lpfc_vport
*vport
)
233 struct lpfc_hba
*phba
= vport
->phba
;
234 uint32_t wait_flags
= 0;
235 unsigned long wait_time_max
;
236 unsigned long start_time
;
238 wait_flags
= FC_RSCN_MODE
| FC_RSCN_DISCOVERY
| FC_NLP_MORE
|
239 FC_RSCN_DEFERRED
| FC_NDISC_ACTIVE
| FC_DISC_TMO
;
242 * The time constraint on this loop is a balance between the
243 * fabric RA_TOV value and dev_loss tmo. The driver's
244 * devloss_tmo is 10 giving this loop a 3x multiplier minimally.
246 wait_time_max
= msecs_to_jiffies(((phba
->fc_ratov
* 3) + 3) * 1000);
247 wait_time_max
+= jiffies
;
248 start_time
= jiffies
;
249 while (time_before(jiffies
, wait_time_max
)) {
250 if ((vport
->num_disc_nodes
> 0) ||
251 (vport
->fc_flag
& wait_flags
) ||
252 ((vport
->port_state
> LPFC_VPORT_FAILED
) &&
253 (vport
->port_state
< LPFC_VPORT_READY
))) {
254 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_VPORT
,
255 "1833 Vport discovery quiesce Wait:"
256 " state x%x fc_flags x%x"
257 " num_nodes x%x, waiting 1000 msecs"
258 " total wait msecs x%x\n",
259 vport
->port_state
, vport
->fc_flag
,
260 vport
->num_disc_nodes
,
261 jiffies_to_msecs(jiffies
- start_time
));
264 /* Base case. Wait variants satisfied. Break out */
265 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_VPORT
,
266 "1834 Vport discovery quiesced:"
267 " state x%x fc_flags x%x"
269 vport
->port_state
, vport
->fc_flag
,
270 jiffies_to_msecs(jiffies
276 if (time_after(jiffies
, wait_time_max
))
277 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
278 "1835 Vport discovery quiesce failed:"
279 " state x%x fc_flags x%x wait msecs x%x\n",
280 vport
->port_state
, vport
->fc_flag
,
281 jiffies_to_msecs(jiffies
- start_time
));
285 lpfc_vport_create(struct fc_vport
*fc_vport
, bool disable
)
287 struct lpfc_nodelist
*ndlp
;
288 struct Scsi_Host
*shost
= fc_vport
->shost
;
289 struct lpfc_vport
*pport
= (struct lpfc_vport
*) shost
->hostdata
;
290 struct lpfc_hba
*phba
= pport
->phba
;
291 struct lpfc_vport
*vport
= NULL
;
294 int rc
= VPORT_ERROR
;
297 if ((phba
->sli_rev
< 3) || !(phba
->cfg_enable_npiv
)) {
298 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
299 "1808 Create VPORT failed: "
300 "NPIV is not enabled: SLImode:%d\n",
306 vpi
= lpfc_alloc_vpi(phba
);
308 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
309 "1809 Create VPORT failed: "
310 "Max VPORTs (%d) exceeded\n",
312 rc
= VPORT_NORESOURCES
;
316 /* Assign an unused board number */
317 if ((instance
= lpfc_get_instance()) < 0) {
318 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
319 "1810 Create VPORT failed: Cannot get "
320 "instance number\n");
321 lpfc_free_vpi(phba
, vpi
);
322 rc
= VPORT_NORESOURCES
;
326 vport
= lpfc_create_port(phba
, instance
, &fc_vport
->dev
);
328 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
329 "1811 Create VPORT failed: vpi x%x\n", vpi
);
330 lpfc_free_vpi(phba
, vpi
);
331 rc
= VPORT_NORESOURCES
;
336 lpfc_debugfs_initialize(vport
);
338 if ((status
= lpfc_vport_sparm(phba
, vport
))) {
339 if (status
== -EINTR
) {
340 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
341 "1831 Create VPORT Interrupted.\n");
344 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
345 "1813 Create VPORT failed. "
346 "Cannot get sparam\n");
347 rc
= VPORT_NORESOURCES
;
349 lpfc_free_vpi(phba
, vpi
);
354 u64_to_wwn(fc_vport
->node_name
, vport
->fc_nodename
.u
.wwn
);
355 u64_to_wwn(fc_vport
->port_name
, vport
->fc_portname
.u
.wwn
);
357 memcpy(&vport
->fc_sparam
.portName
, vport
->fc_portname
.u
.wwn
, 8);
358 memcpy(&vport
->fc_sparam
.nodeName
, vport
->fc_nodename
.u
.wwn
, 8);
360 if (!lpfc_valid_wwn_format(phba
, &vport
->fc_sparam
.nodeName
, "WWNN") ||
361 !lpfc_valid_wwn_format(phba
, &vport
->fc_sparam
.portName
, "WWPN")) {
362 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
363 "1821 Create VPORT failed. "
364 "Invalid WWN format\n");
365 lpfc_free_vpi(phba
, vpi
);
371 if (!lpfc_unique_wwpn(phba
, vport
)) {
372 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
373 "1823 Create VPORT failed. "
374 "Duplicate WWN on HBA\n");
375 lpfc_free_vpi(phba
, vpi
);
381 /* Create binary sysfs attribute for vport */
382 lpfc_alloc_sysfs_attr(vport
);
384 *(struct lpfc_vport
**)fc_vport
->dd_data
= vport
;
385 vport
->fc_vport
= fc_vport
;
388 * In SLI4, the vpi must be activated before it can be used
391 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
392 (pport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
393 rc
= lpfc_sli4_init_vpi(phba
, vpi
);
395 lpfc_printf_log(phba
, KERN_ERR
, LOG_VPORT
,
396 "1838 Failed to INIT_VPI on vpi %d "
397 "status %d\n", vpi
, rc
);
398 rc
= VPORT_NORESOURCES
;
399 lpfc_free_vpi(phba
, vpi
);
402 } else if (phba
->sli_rev
== LPFC_SLI_REV4
) {
404 * Driver cannot INIT_VPI now. Set the flags to
405 * init_vpi when reg_vfi complete.
407 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
408 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
413 if ((phba
->link_state
< LPFC_LINK_UP
) ||
414 (pport
->port_state
< LPFC_FABRIC_CFG_LINK
) ||
415 (phba
->fc_topology
== TOPOLOGY_LOOP
)) {
416 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
422 lpfc_vport_set_state(vport
, FC_VPORT_DISABLED
);
427 /* Use the Physical nodes Fabric NDLP to determine if the link is
428 * up and ready to FDISC.
430 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
431 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
432 ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
433 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
) {
434 lpfc_set_disctmo(vport
);
435 lpfc_initial_fdisc(vport
);
437 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
438 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
439 "0262 No NPIV Fabric support\n");
442 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
447 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
448 "1825 Vport Created.\n");
449 lpfc_host_attrib_init(lpfc_shost_from_vport(vport
));
455 disable_vport(struct fc_vport
*fc_vport
)
457 struct lpfc_vport
*vport
= *(struct lpfc_vport
**)fc_vport
->dd_data
;
458 struct lpfc_hba
*phba
= vport
->phba
;
459 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
462 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
463 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
464 && phba
->link_state
>= LPFC_LINK_UP
) {
465 vport
->unreg_vpi_cmpl
= VPORT_INVAL
;
466 timeout
= msecs_to_jiffies(phba
->fc_ratov
* 2000);
467 if (!lpfc_issue_els_npiv_logo(vport
, ndlp
))
468 while (vport
->unreg_vpi_cmpl
== VPORT_INVAL
&& timeout
)
469 timeout
= schedule_timeout(timeout
);
472 lpfc_sli_host_down(vport
);
474 /* Mark all nodes for discovery so we can remove them by
475 * calling lpfc_cleanup_rpis(vport, 1)
477 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
478 if (!NLP_CHK_NODE_ACT(ndlp
))
480 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
482 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
483 NLP_EVT_DEVICE_RECOVERY
);
485 lpfc_cleanup_rpis(vport
, 1);
487 lpfc_stop_vport_timers(vport
);
488 lpfc_unreg_all_rpis(vport
);
489 lpfc_unreg_default_rpis(vport
);
491 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
492 * scsi_host_put() to release the vport.
494 lpfc_mbx_unreg_vpi(vport
);
496 lpfc_vport_set_state(vport
, FC_VPORT_DISABLED
);
497 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
498 "1826 Vport Disabled.\n");
503 enable_vport(struct fc_vport
*fc_vport
)
505 struct lpfc_vport
*vport
= *(struct lpfc_vport
**)fc_vport
->dd_data
;
506 struct lpfc_hba
*phba
= vport
->phba
;
507 struct lpfc_nodelist
*ndlp
= NULL
;
509 if ((phba
->link_state
< LPFC_LINK_UP
) ||
510 (phba
->fc_topology
== TOPOLOGY_LOOP
)) {
511 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
515 vport
->load_flag
|= FC_LOADING
;
516 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
518 /* Use the Physical nodes Fabric NDLP to determine if the link is
519 * up and ready to FDISC.
521 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
522 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
523 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
524 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
) {
525 lpfc_set_disctmo(vport
);
526 lpfc_initial_fdisc(vport
);
528 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
529 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
530 "0264 No NPIV Fabric support\n");
533 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
535 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
536 "1827 Vport Enabled.\n");
541 lpfc_vport_disable(struct fc_vport
*fc_vport
, bool disable
)
544 return disable_vport(fc_vport
);
546 return enable_vport(fc_vport
);
551 lpfc_vport_delete(struct fc_vport
*fc_vport
)
553 struct lpfc_nodelist
*ndlp
= NULL
;
554 struct Scsi_Host
*shost
= (struct Scsi_Host
*) fc_vport
->shost
;
555 struct lpfc_vport
*vport
= *(struct lpfc_vport
**)fc_vport
->dd_data
;
556 struct lpfc_hba
*phba
= vport
->phba
;
559 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
560 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
561 "1812 vport_delete failed: Cannot delete "
566 /* If the vport is a static vport fail the deletion. */
567 if ((vport
->vport_flag
& STATIC_VPORT
) &&
568 !(phba
->pport
->load_flag
& FC_UNLOADING
)) {
569 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
570 "1837 vport_delete failed: Cannot delete "
576 * If we are not unloading the driver then prevent the vport_delete
577 * from happening until after this vport's discovery is finished.
579 if (!(phba
->pport
->load_flag
& FC_UNLOADING
)) {
581 while (check_count
< ((phba
->fc_ratov
* 3) + 3) &&
582 vport
->port_state
> LPFC_VPORT_FAILED
&&
583 vport
->port_state
< LPFC_VPORT_READY
) {
587 if (vport
->port_state
> LPFC_VPORT_FAILED
&&
588 vport
->port_state
< LPFC_VPORT_READY
)
592 * This is a bit of a mess. We want to ensure the shost doesn't get
593 * torn down until we're done with the embedded lpfc_vport structure.
595 * Beyond holding a reference for this function, we also need a
596 * reference for outstanding I/O requests we schedule during delete
597 * processing. But once we scsi_remove_host() we can no longer obtain
598 * a reference through scsi_host_get().
600 * So we take two references here. We release one reference at the
601 * bottom of the function -- after delinking the vport. And we
602 * release the other at the completion of the unreg_vpi that get's
603 * initiated after we've disposed of all other resources associated
606 if (!scsi_host_get(shost
))
608 if (!scsi_host_get(shost
)) {
609 scsi_host_put(shost
);
612 spin_lock_irq(&phba
->hbalock
);
613 vport
->load_flag
|= FC_UNLOADING
;
614 spin_unlock_irq(&phba
->hbalock
);
616 lpfc_free_sysfs_attr(vport
);
618 lpfc_debugfs_terminate(vport
);
620 /* Remove FC host and then SCSI host with the vport */
621 fc_remove_host(lpfc_shost_from_vport(vport
));
622 scsi_remove_host(lpfc_shost_from_vport(vport
));
624 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
626 /* In case of driver unload, we shall not perform fabric logo as the
627 * worker thread already stopped at this stage and, in this case, we
628 * can safely skip the fabric logo.
630 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
631 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
632 ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
&&
633 phba
->link_state
>= LPFC_LINK_UP
) {
634 /* First look for the Fabric ndlp */
635 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
638 else if (!NLP_CHK_NODE_ACT(ndlp
)) {
639 ndlp
= lpfc_enable_node(vport
, ndlp
,
640 NLP_STE_UNUSED_NODE
);
644 /* Remove ndlp from vport npld list */
645 lpfc_dequeue_node(vport
, ndlp
);
647 /* Indicate free memory when release */
648 spin_lock_irq(&phba
->ndlp_lock
);
649 NLP_SET_FREE_REQ(ndlp
);
650 spin_unlock_irq(&phba
->ndlp_lock
);
651 /* Kick off release ndlp when it can be safely done */
657 /* Otherwise, we will perform fabric logo as needed */
658 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
659 ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
&&
660 phba
->link_state
>= LPFC_LINK_UP
&&
661 phba
->fc_topology
!= TOPOLOGY_LOOP
) {
662 if (vport
->cfg_enable_da_id
) {
663 timeout
= msecs_to_jiffies(phba
->fc_ratov
* 2000);
664 if (!lpfc_ns_cmd(vport
, SLI_CTNS_DA_ID
, 0, 0))
665 while (vport
->ct_flags
&& timeout
)
666 timeout
= schedule_timeout(timeout
);
668 lpfc_printf_log(vport
->phba
, KERN_WARNING
,
670 "1829 CT command failed to "
671 "delete objects on fabric\n");
673 /* First look for the Fabric ndlp */
674 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
676 /* Cannot find existing Fabric ndlp, allocate one */
677 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
680 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
681 /* Indicate free memory when release */
682 NLP_SET_FREE_REQ(ndlp
);
684 if (!NLP_CHK_NODE_ACT(ndlp
))
685 ndlp
= lpfc_enable_node(vport
, ndlp
,
686 NLP_STE_UNUSED_NODE
);
690 /* Remove ndlp from vport npld list */
691 lpfc_dequeue_node(vport
, ndlp
);
692 spin_lock_irq(&phba
->ndlp_lock
);
693 if (!NLP_CHK_FREE_REQ(ndlp
))
694 /* Indicate free memory when release */
695 NLP_SET_FREE_REQ(ndlp
);
697 /* Skip this if ndlp is already in free mode */
698 spin_unlock_irq(&phba
->ndlp_lock
);
701 spin_unlock_irq(&phba
->ndlp_lock
);
703 vport
->unreg_vpi_cmpl
= VPORT_INVAL
;
704 timeout
= msecs_to_jiffies(phba
->fc_ratov
* 2000);
705 if (!lpfc_issue_els_npiv_logo(vport
, ndlp
))
706 while (vport
->unreg_vpi_cmpl
== VPORT_INVAL
&& timeout
)
707 timeout
= schedule_timeout(timeout
);
710 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
711 lpfc_discovery_wait(vport
);
715 lpfc_sli_host_down(vport
);
717 lpfc_stop_vport_timers(vport
);
719 if (!(phba
->pport
->load_flag
& FC_UNLOADING
)) {
720 lpfc_unreg_all_rpis(vport
);
721 lpfc_unreg_default_rpis(vport
);
723 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)
724 * does the scsi_host_put() to release the vport.
726 if (lpfc_mbx_unreg_vpi(vport
))
727 scsi_host_put(shost
);
729 scsi_host_put(shost
);
731 lpfc_free_vpi(phba
, vport
->vpi
);
732 vport
->work_port_events
= 0;
733 spin_lock_irq(&phba
->hbalock
);
734 list_del_init(&vport
->listentry
);
735 spin_unlock_irq(&phba
->hbalock
);
736 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_VPORT
,
737 "1828 Vport Deleted.\n");
738 scsi_host_put(shost
);
743 lpfc_create_vport_work_array(struct lpfc_hba
*phba
)
745 struct lpfc_vport
*port_iterator
;
746 struct lpfc_vport
**vports
;
748 vports
= kzalloc((phba
->max_vports
+ 1) * sizeof(struct lpfc_vport
*),
752 spin_lock_irq(&phba
->hbalock
);
753 list_for_each_entry(port_iterator
, &phba
->port_list
, listentry
) {
754 if (!scsi_host_get(lpfc_shost_from_vport(port_iterator
))) {
755 lpfc_printf_vlog(port_iterator
, KERN_WARNING
, LOG_VPORT
,
756 "1801 Create vport work array FAILED: "
757 "cannot do scsi_host_get\n");
760 vports
[index
++] = port_iterator
;
762 spin_unlock_irq(&phba
->hbalock
);
767 lpfc_destroy_vport_work_array(struct lpfc_hba
*phba
, struct lpfc_vport
**vports
)
772 for (i
= 0; vports
[i
] != NULL
&& i
<= phba
->max_vports
; i
++)
773 scsi_host_put(lpfc_shost_from_vport(vports
[i
]));
779 * lpfc_vport_reset_stat_data - Reset the statistical data for the vport
780 * @vport: Pointer to vport object.
782 * This function resets the statistical data for the vport. This function
783 * is called with the host_lock held
786 lpfc_vport_reset_stat_data(struct lpfc_vport
*vport
)
788 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
790 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
791 if (!NLP_CHK_NODE_ACT(ndlp
))
794 memset(ndlp
->lat_data
, 0, LPFC_MAX_BUCKET_COUNT
*
795 sizeof(struct lpfc_scsicmd_bkt
));
801 * lpfc_alloc_bucket - Allocate data buffer required for statistical data
802 * @vport: Pointer to vport object.
804 * This function allocates data buffer required for all the FC
805 * nodes of the vport to collect statistical data.
808 lpfc_alloc_bucket(struct lpfc_vport
*vport
)
810 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
812 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
813 if (!NLP_CHK_NODE_ACT(ndlp
))
816 kfree(ndlp
->lat_data
);
817 ndlp
->lat_data
= NULL
;
819 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
) {
820 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
821 sizeof(struct lpfc_scsicmd_bkt
),
825 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
826 "0287 lpfc_alloc_bucket failed to "
827 "allocate statistical data buffer DID "
828 "0x%x\n", ndlp
->nlp_DID
);
834 * lpfc_free_bucket - Free data buffer required for statistical data
835 * @vport: Pointer to vport object.
837 * Th function frees statistical data buffer of all the FC
838 * nodes of the vport.
841 lpfc_free_bucket(struct lpfc_vport
*vport
)
843 struct lpfc_nodelist
*ndlp
= NULL
, *next_ndlp
= NULL
;
845 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
846 if (!NLP_CHK_NODE_ACT(ndlp
))
849 kfree(ndlp
->lat_data
);
850 ndlp
->lat_data
= NULL
;