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fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
blob880af0cd463dbbe163c43ec379fa68e903a2242e
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
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 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_transport_fc.h>
30
31 #include "lpfc_hw.h"
32 #include "lpfc_sli.h"
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
35 #include "lpfc.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_crtn.h"
38 #include "lpfc_vport.h"
39 #include "lpfc_debugfs.h"
40
41
42 /* Called to verify a rcv'ed ADISC was intended for us. */
43 static int
44 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
45 struct lpfc_name *nn, struct lpfc_name *pn)
46 {
47 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
48 * table entry for that node.
49 */
50 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
51 return 0;
52
53 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
54 return 0;
55
56 /* we match, return success */
57 return 1;
58 }
59
60 int
61 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
62 struct serv_parm * sp, uint32_t class)
63 {
64 volatile struct serv_parm *hsp = &vport->fc_sparam;
65 uint16_t hsp_value, ssp_value = 0;
66
67 /*
68 * The receive data field size and buffer-to-buffer receive data field
69 * size entries are 16 bits but are represented as two 8-bit fields in
70 * the driver data structure to account for rsvd bits and other control
71 * bits. Reconstruct and compare the fields as a 16-bit values before
72 * correcting the byte values.
73 */
74 if (sp->cls1.classValid) {
75 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
76 hsp->cls1.rcvDataSizeLsb;
77 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
78 sp->cls1.rcvDataSizeLsb;
79 if (!ssp_value)
80 goto bad_service_param;
81 if (ssp_value > hsp_value) {
82 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
83 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
84 }
85 } else if (class == CLASS1) {
86 goto bad_service_param;
87 }
88
89 if (sp->cls2.classValid) {
90 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
91 hsp->cls2.rcvDataSizeLsb;
92 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
93 sp->cls2.rcvDataSizeLsb;
94 if (!ssp_value)
95 goto bad_service_param;
96 if (ssp_value > hsp_value) {
97 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
98 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
99 }
100 } else if (class == CLASS2) {
101 goto bad_service_param;
102 }
103
104 if (sp->cls3.classValid) {
105 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
106 hsp->cls3.rcvDataSizeLsb;
107 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
108 sp->cls3.rcvDataSizeLsb;
109 if (!ssp_value)
110 goto bad_service_param;
111 if (ssp_value > hsp_value) {
112 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
113 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
114 }
115 } else if (class == CLASS3) {
116 goto bad_service_param;
117 }
118
119 /*
120 * Preserve the upper four bits of the MSB from the PLOGI response.
121 * These bits contain the Buffer-to-Buffer State Change Number
122 * from the target and need to be passed to the FW.
123 */
124 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
125 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
126 if (ssp_value > hsp_value) {
127 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
128 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
129 (hsp->cmn.bbRcvSizeMsb & 0x0F);
130 }
131
132 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
133 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
134 return 1;
135 bad_service_param:
136 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
137 "0207 Device %x "
138 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
139 "invalid service parameters. Ignoring device.\n",
140 ndlp->nlp_DID,
141 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
142 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
143 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
144 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
145 return 0;
146 }
147
148 static void *
149 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
150 struct lpfc_iocbq *rspiocb)
151 {
152 struct lpfc_dmabuf *pcmd, *prsp;
153 uint32_t *lp;
154 void *ptr = NULL;
155 IOCB_t *irsp;
156
157 irsp = &rspiocb->iocb;
158 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
159
160 /* For lpfc_els_abort, context2 could be zero'ed to delay
161 * freeing associated memory till after ABTS completes.
162 */
163 if (pcmd) {
164 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
165 list);
166 if (prsp) {
167 lp = (uint32_t *) prsp->virt;
168 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
169 }
170 } else {
171 /* Force ulpStatus error since we are returning NULL ptr */
172 if (!(irsp->ulpStatus)) {
173 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
174 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
175 }
176 ptr = NULL;
177 }
178 return ptr;
179 }
180
181
182 /*
183 * Free resources / clean up outstanding I/Os
184 * associated with a LPFC_NODELIST entry. This
185 * routine effectively results in a "software abort".
186 */
187 int
188 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
189 {
190 LIST_HEAD(completions);
191 struct lpfc_sli *psli = &phba->sli;
192 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
193 struct lpfc_iocbq *iocb, *next_iocb;
194 IOCB_t *cmd;
195
196 /* Abort outstanding I/O on NPort <nlp_DID> */
197 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
198 "0205 Abort outstanding I/O on NPort x%x "
199 "Data: x%x x%x x%x\n",
200 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
201 ndlp->nlp_rpi);
202
203 lpfc_fabric_abort_nport(ndlp);
204
205 /* First check the txq */
206 spin_lock_irq(&phba->hbalock);
207 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
208 /* Check to see if iocb matches the nport we are looking for */
209 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
210 /* It matches, so deque and call compl with anp error */
211 list_move_tail(&iocb->list, &completions);
212 pring->txq_cnt--;
213 }
214 }
215
216 /* Next check the txcmplq */
217 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
218 /* Check to see if iocb matches the nport we are looking for */
219 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
220 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
221 }
222 }
223 spin_unlock_irq(&phba->hbalock);
224
225 while (!list_empty(&completions)) {
226 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
227 cmd = &iocb->iocb;
228 list_del_init(&iocb->list);
229
230 if (!iocb->iocb_cmpl)
231 lpfc_sli_release_iocbq(phba, iocb);
232 else {
233 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
234 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
235 (iocb->iocb_cmpl) (phba, iocb, iocb);
236 }
237 }
238
239 /* If we are delaying issuing an ELS command, cancel it */
240 if (ndlp->nlp_flag & NLP_DELAY_TMO)
241 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
242 return 0;
243 }
244
245 static int
246 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
247 struct lpfc_iocbq *cmdiocb)
248 {
249 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
250 struct lpfc_hba *phba = vport->phba;
251 struct lpfc_dmabuf *pcmd;
252 uint32_t *lp;
253 IOCB_t *icmd;
254 struct serv_parm *sp;
255 LPFC_MBOXQ_t *mbox;
256 struct ls_rjt stat;
257 int rc;
258
259 memset(&stat, 0, sizeof (struct ls_rjt));
260 if (vport->port_state <= LPFC_FLOGI) {
261 /* Before responding to PLOGI, check for pt2pt mode.
262 * If we are pt2pt, with an outstanding FLOGI, abort
263 * the FLOGI and resend it first.
264 */
265 if (vport->fc_flag & FC_PT2PT) {
266 lpfc_els_abort_flogi(phba);
267 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
268 /* If the other side is supposed to initiate
269 * the PLOGI anyway, just ACC it now and
270 * move on with discovery.
271 */
272 phba->fc_edtov = FF_DEF_EDTOV;
273 phba->fc_ratov = FF_DEF_RATOV;
274 /* Start discovery - this should just do
275 CLEAR_LA */
276 lpfc_disc_start(vport);
277 } else
278 lpfc_initial_flogi(vport);
279 } else {
280 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
281 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
282 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
283 ndlp, NULL);
284 return 0;
285 }
286 }
287 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
288 lp = (uint32_t *) pcmd->virt;
289 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
290 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
291 /* Reject this request because invalid parameters */
292 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
293 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
294 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
295 NULL);
296 return 0;
297 }
298 icmd = &cmdiocb->iocb;
299
300 /* PLOGI chkparm OK */
301 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
302 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
303 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
304 ndlp->nlp_rpi);
305
306 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
307 ndlp->nlp_fcp_info |= CLASS2;
308 else
309 ndlp->nlp_fcp_info |= CLASS3;
310
311 ndlp->nlp_class_sup = 0;
312 if (sp->cls1.classValid)
313 ndlp->nlp_class_sup |= FC_COS_CLASS1;
314 if (sp->cls2.classValid)
315 ndlp->nlp_class_sup |= FC_COS_CLASS2;
316 if (sp->cls3.classValid)
317 ndlp->nlp_class_sup |= FC_COS_CLASS3;
318 if (sp->cls4.classValid)
319 ndlp->nlp_class_sup |= FC_COS_CLASS4;
320 ndlp->nlp_maxframe =
321 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
322
323 /* no need to reg_login if we are already in one of these states */
324 switch (ndlp->nlp_state) {
325 case NLP_STE_NPR_NODE:
326 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
327 break;
328 case NLP_STE_REG_LOGIN_ISSUE:
329 case NLP_STE_PRLI_ISSUE:
330 case NLP_STE_UNMAPPED_NODE:
331 case NLP_STE_MAPPED_NODE:
332 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
333 return 1;
334 }
335
336 if ((vport->fc_flag & FC_PT2PT) &&
337 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
338 /* rcv'ed PLOGI decides what our NPortId will be */
339 vport->fc_myDID = icmd->un.rcvels.parmRo;
340 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
341 if (mbox == NULL)
342 goto out;
343 lpfc_config_link(phba, mbox);
344 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
345 mbox->vport = vport;
346 rc = lpfc_sli_issue_mbox
347 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
348 if (rc == MBX_NOT_FINISHED) {
349 mempool_free(mbox, phba->mbox_mem_pool);
350 goto out;
351 }
352
353 lpfc_can_disctmo(vport);
354 }
355 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
356 if (!mbox)
357 goto out;
358
359 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
360 (uint8_t *) sp, mbox, 0);
361 if (rc) {
362 mempool_free(mbox, phba->mbox_mem_pool);
363 goto out;
364 }
365
366 /* ACC PLOGI rsp command needs to execute first,
367 * queue this mbox command to be processed later.
368 */
369 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
370 /*
371 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
372 * command issued in lpfc_cmpl_els_acc().
373 */
374 mbox->vport = vport;
375 spin_lock_irq(shost->host_lock);
376 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
377 spin_unlock_irq(shost->host_lock);
378
379 /*
380 * If there is an outstanding PLOGI issued, abort it before
381 * sending ACC rsp for received PLOGI. If pending plogi
382 * is not canceled here, the plogi will be rejected by
383 * remote port and will be retried. On a configuration with
384 * single discovery thread, this will cause a huge delay in
385 * discovery. Also this will cause multiple state machines
386 * running in parallel for this node.
387 */
388 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
389 /* software abort outstanding PLOGI */
390 lpfc_els_abort(phba, ndlp);
391 }
392
393 if ((vport->port_type == LPFC_NPIV_PORT &&
394 vport->cfg_restrict_login)) {
395
396 /* In order to preserve RPIs, we want to cleanup
397 * the default RPI the firmware created to rcv
398 * this ELS request. The only way to do this is
399 * to register, then unregister the RPI.
400 */
401 spin_lock_irq(shost->host_lock);
402 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
403 spin_unlock_irq(shost->host_lock);
404 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
405 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
406 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
407 ndlp, mbox);
408 return 1;
409 }
410 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
411 return 1;
412
413 out:
414 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
415 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
416 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
417 return 0;
418 }
419
420 static int
421 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
422 struct lpfc_iocbq *cmdiocb)
423 {
424 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
425 struct lpfc_dmabuf *pcmd;
426 struct serv_parm *sp;
427 struct lpfc_name *pnn, *ppn;
428 struct ls_rjt stat;
429 ADISC *ap;
430 IOCB_t *icmd;
431 uint32_t *lp;
432 uint32_t cmd;
433
434 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
435 lp = (uint32_t *) pcmd->virt;
436
437 cmd = *lp++;
438 if (cmd == ELS_CMD_ADISC) {
439 ap = (ADISC *) lp;
440 pnn = (struct lpfc_name *) & ap->nodeName;
441 ppn = (struct lpfc_name *) & ap->portName;
442 } else {
443 sp = (struct serv_parm *) lp;
444 pnn = (struct lpfc_name *) & sp->nodeName;
445 ppn = (struct lpfc_name *) & sp->portName;
446 }
447
448 icmd = &cmdiocb->iocb;
449 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
450 if (cmd == ELS_CMD_ADISC) {
451 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
452 } else {
453 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
454 NULL);
455 }
456 return 1;
457 }
458 /* Reject this request because invalid parameters */
459 stat.un.b.lsRjtRsvd0 = 0;
460 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
461 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
462 stat.un.b.vendorUnique = 0;
463 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
464
465 /* 1 sec timeout */
466 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
467
468 spin_lock_irq(shost->host_lock);
469 ndlp->nlp_flag |= NLP_DELAY_TMO;
470 spin_unlock_irq(shost->host_lock);
471 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
472 ndlp->nlp_prev_state = ndlp->nlp_state;
473 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
474 return 0;
475 }
476
477 static int
478 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
479 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
480 {
481 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
482
483 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
484 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
485 * PLOGIs during LOGO storms from a device.
486 */
487 spin_lock_irq(shost->host_lock);
488 ndlp->nlp_flag |= NLP_LOGO_ACC;
489 spin_unlock_irq(shost->host_lock);
490 if (els_cmd == ELS_CMD_PRLO)
491 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
492 else
493 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
494
495 if (!(ndlp->nlp_type & NLP_FABRIC) ||
496 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
497 /* Only try to re-login if this is NOT a Fabric Node */
498 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
499 spin_lock_irq(shost->host_lock);
500 ndlp->nlp_flag |= NLP_DELAY_TMO;
501 spin_unlock_irq(shost->host_lock);
502
503 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
504 ndlp->nlp_prev_state = ndlp->nlp_state;
505 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
506 } else {
507 ndlp->nlp_prev_state = ndlp->nlp_state;
508 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
509 }
510
511 spin_lock_irq(shost->host_lock);
512 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
513 spin_unlock_irq(shost->host_lock);
514 /* The driver has to wait until the ACC completes before it continues
515 * processing the LOGO. The action will resume in
516 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
517 * unreg_login, the driver waits so the ACC does not get aborted.
518 */
519 return 0;
520 }
521
522 static void
523 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
524 struct lpfc_iocbq *cmdiocb)
525 {
526 struct lpfc_dmabuf *pcmd;
527 uint32_t *lp;
528 PRLI *npr;
529 struct fc_rport *rport = ndlp->rport;
530 u32 roles;
531
532 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
533 lp = (uint32_t *) pcmd->virt;
534 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
535
536 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
537 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
538 if (npr->prliType == PRLI_FCP_TYPE) {
539 if (npr->initiatorFunc)
540 ndlp->nlp_type |= NLP_FCP_INITIATOR;
541 if (npr->targetFunc)
542 ndlp->nlp_type |= NLP_FCP_TARGET;
543 if (npr->Retry)
544 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
545 }
546 if (rport) {
547 /* We need to update the rport role values */
548 roles = FC_RPORT_ROLE_UNKNOWN;
549 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
550 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
551 if (ndlp->nlp_type & NLP_FCP_TARGET)
552 roles |= FC_RPORT_ROLE_FCP_TARGET;
553
554 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
555 "rport rolechg: role:x%x did:x%x flg:x%x",
556 roles, ndlp->nlp_DID, ndlp->nlp_flag);
557
558 fc_remote_port_rolechg(rport, roles);
559 }
560 }
561
562 static uint32_t
563 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
564 {
565 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
566
567 if (!ndlp->nlp_rpi) {
568 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
569 return 0;
570 }
571
572 /* Check config parameter use-adisc or FCP-2 */
573 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
574 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
575 spin_lock_irq(shost->host_lock);
576 ndlp->nlp_flag |= NLP_NPR_ADISC;
577 spin_unlock_irq(shost->host_lock);
578 return 1;
579 }
580 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
581 lpfc_unreg_rpi(vport, ndlp);
582 return 0;
583 }
584
585 static uint32_t
586 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
587 void *arg, uint32_t evt)
588 {
589 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
590 "0253 Illegal State Transition: node x%x "
591 "event x%x, state x%x Data: x%x x%x\n",
592 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
593 ndlp->nlp_flag);
594 return ndlp->nlp_state;
595 }
596
597 /* Start of Discovery State Machine routines */
598
599 static uint32_t
600 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
601 void *arg, uint32_t evt)
602 {
603 struct lpfc_iocbq *cmdiocb;
604
605 cmdiocb = (struct lpfc_iocbq *) arg;
606
607 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
608 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
609 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
610 return ndlp->nlp_state;
611 }
612 lpfc_drop_node(vport, ndlp);
613 return NLP_STE_FREED_NODE;
614 }
615
616 static uint32_t
617 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
618 void *arg, uint32_t evt)
619 {
620 lpfc_issue_els_logo(vport, ndlp, 0);
621 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
622 return ndlp->nlp_state;
623 }
624
625 static uint32_t
626 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
627 void *arg, uint32_t evt)
628 {
629 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
630 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
631
632 spin_lock_irq(shost->host_lock);
633 ndlp->nlp_flag |= NLP_LOGO_ACC;
634 spin_unlock_irq(shost->host_lock);
635 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
636 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
637
638 return ndlp->nlp_state;
639 }
640
641 static uint32_t
642 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
643 void *arg, uint32_t evt)
644 {
645 lpfc_drop_node(vport, ndlp);
646 return NLP_STE_FREED_NODE;
647 }
648
649 static uint32_t
650 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
651 void *arg, uint32_t evt)
652 {
653 lpfc_drop_node(vport, ndlp);
654 return NLP_STE_FREED_NODE;
655 }
656
657 static uint32_t
658 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
659 void *arg, uint32_t evt)
660 {
661 struct lpfc_hba *phba = vport->phba;
662 struct lpfc_iocbq *cmdiocb = arg;
663 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
664 uint32_t *lp = (uint32_t *) pcmd->virt;
665 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
666 struct ls_rjt stat;
667 int port_cmp;
668
669 memset(&stat, 0, sizeof (struct ls_rjt));
670
671 /* For a PLOGI, we only accept if our portname is less
672 * than the remote portname.
673 */
674 phba->fc_stat.elsLogiCol++;
675 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
676 sizeof(struct lpfc_name));
677
678 if (port_cmp >= 0) {
679 /* Reject this request because the remote node will accept
680 ours */
681 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
682 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
683 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
684 NULL);
685 } else {
686 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
687 } /* If our portname was less */
688
689 return ndlp->nlp_state;
690 }
691
692 static uint32_t
693 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
694 void *arg, uint32_t evt)
695 {
696 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
697 struct ls_rjt stat;
698
699 memset(&stat, 0, sizeof (struct ls_rjt));
700 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
701 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
702 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
703 return ndlp->nlp_state;
704 }
705
706 static uint32_t
707 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
708 void *arg, uint32_t evt)
709 {
710 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
711
712 /* software abort outstanding PLOGI */
713 lpfc_els_abort(vport->phba, ndlp);
714
715 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
716 return ndlp->nlp_state;
717 }
718
719 static uint32_t
720 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
721 void *arg, uint32_t evt)
722 {
723 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
724 struct lpfc_hba *phba = vport->phba;
725 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
726
727 /* software abort outstanding PLOGI */
728 lpfc_els_abort(phba, ndlp);
729
730 if (evt == NLP_EVT_RCV_LOGO) {
731 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
732 } else {
733 lpfc_issue_els_logo(vport, ndlp, 0);
734 }
735
736 /* Put ndlp in npr state set plogi timer for 1 sec */
737 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
738 spin_lock_irq(shost->host_lock);
739 ndlp->nlp_flag |= NLP_DELAY_TMO;
740 spin_unlock_irq(shost->host_lock);
741 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
742 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
743 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
744
745 return ndlp->nlp_state;
746 }
747
748 static uint32_t
749 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
750 struct lpfc_nodelist *ndlp,
751 void *arg,
752 uint32_t evt)
753 {
754 struct lpfc_hba *phba = vport->phba;
755 struct lpfc_iocbq *cmdiocb, *rspiocb;
756 struct lpfc_dmabuf *pcmd, *prsp, *mp;
757 uint32_t *lp;
758 IOCB_t *irsp;
759 struct serv_parm *sp;
760 LPFC_MBOXQ_t *mbox;
761
762 cmdiocb = (struct lpfc_iocbq *) arg;
763 rspiocb = cmdiocb->context_un.rsp_iocb;
764
765 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
766 /* Recovery from PLOGI collision logic */
767 return ndlp->nlp_state;
768 }
769
770 irsp = &rspiocb->iocb;
771
772 if (irsp->ulpStatus)
773 goto out;
774
775 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
776
777 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
778
779 lp = (uint32_t *) prsp->virt;
780 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
781 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
782 goto out;
783 /* PLOGI chkparm OK */
784 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
785 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
786 ndlp->nlp_DID, ndlp->nlp_state,
787 ndlp->nlp_flag, ndlp->nlp_rpi);
788 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
789 ndlp->nlp_fcp_info |= CLASS2;
790 else
791 ndlp->nlp_fcp_info |= CLASS3;
792
793 ndlp->nlp_class_sup = 0;
794 if (sp->cls1.classValid)
795 ndlp->nlp_class_sup |= FC_COS_CLASS1;
796 if (sp->cls2.classValid)
797 ndlp->nlp_class_sup |= FC_COS_CLASS2;
798 if (sp->cls3.classValid)
799 ndlp->nlp_class_sup |= FC_COS_CLASS3;
800 if (sp->cls4.classValid)
801 ndlp->nlp_class_sup |= FC_COS_CLASS4;
802 ndlp->nlp_maxframe =
803 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
804
805 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
806 if (!mbox) {
807 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
808 "0133 PLOGI: no memory for reg_login "
809 "Data: x%x x%x x%x x%x\n",
810 ndlp->nlp_DID, ndlp->nlp_state,
811 ndlp->nlp_flag, ndlp->nlp_rpi);
812 goto out;
813 }
814
815 lpfc_unreg_rpi(vport, ndlp);
816
817 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
818 (uint8_t *) sp, mbox, 0) == 0) {
819 switch (ndlp->nlp_DID) {
820 case NameServer_DID:
821 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
822 break;
823 case FDMI_DID:
824 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
825 break;
826 default:
827 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
828 }
829 mbox->context2 = lpfc_nlp_get(ndlp);
830 mbox->vport = vport;
831 if (lpfc_sli_issue_mbox(phba, mbox,
832 (MBX_NOWAIT | MBX_STOP_IOCB))
833 != MBX_NOT_FINISHED) {
834 lpfc_nlp_set_state(vport, ndlp,
835 NLP_STE_REG_LOGIN_ISSUE);
836 return ndlp->nlp_state;
837 }
838 lpfc_nlp_put(ndlp);
839 mp = (struct lpfc_dmabuf *) mbox->context1;
840 lpfc_mbuf_free(phba, mp->virt, mp->phys);
841 kfree(mp);
842 mempool_free(mbox, phba->mbox_mem_pool);
843
844 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
845 "0134 PLOGI: cannot issue reg_login "
846 "Data: x%x x%x x%x x%x\n",
847 ndlp->nlp_DID, ndlp->nlp_state,
848 ndlp->nlp_flag, ndlp->nlp_rpi);
849 } else {
850 mempool_free(mbox, phba->mbox_mem_pool);
851
852 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
853 "0135 PLOGI: cannot format reg_login "
854 "Data: x%x x%x x%x x%x\n",
855 ndlp->nlp_DID, ndlp->nlp_state,
856 ndlp->nlp_flag, ndlp->nlp_rpi);
857 }
858
859
860 out:
861 if (ndlp->nlp_DID == NameServer_DID) {
862 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
863 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
864 "0261 Cannot Register NameServer login\n");
865 }
866
867 /* Free this node since the driver cannot login or has the wrong
868 sparm */
869 lpfc_drop_node(vport, ndlp);
870 return NLP_STE_FREED_NODE;
871 }
872
873 static uint32_t
874 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
875 void *arg, uint32_t evt)
876 {
877 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
878
879 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
880 spin_lock_irq(shost->host_lock);
881 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
882 spin_unlock_irq(shost->host_lock);
883 return ndlp->nlp_state;
884 } else {
885 /* software abort outstanding PLOGI */
886 lpfc_els_abort(vport->phba, ndlp);
887
888 lpfc_drop_node(vport, ndlp);
889 return NLP_STE_FREED_NODE;
890 }
891 }
892
893 static uint32_t
894 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
895 struct lpfc_nodelist *ndlp,
896 void *arg,
897 uint32_t evt)
898 {
899 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
900 struct lpfc_hba *phba = vport->phba;
901
902 /* Don't do anything that will mess up processing of the
903 * previous RSCN.
904 */
905 if (vport->fc_flag & FC_RSCN_DEFERRED)
906 return ndlp->nlp_state;
907
908 /* software abort outstanding PLOGI */
909 lpfc_els_abort(phba, ndlp);
910
911 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
912 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
913 spin_lock_irq(shost->host_lock);
914 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
915 spin_unlock_irq(shost->host_lock);
916
917 return ndlp->nlp_state;
918 }
919
920 static uint32_t
921 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
922 void *arg, uint32_t evt)
923 {
924 struct lpfc_hba *phba = vport->phba;
925 struct lpfc_iocbq *cmdiocb;
926
927 /* software abort outstanding ADISC */
928 lpfc_els_abort(phba, ndlp);
929
930 cmdiocb = (struct lpfc_iocbq *) arg;
931
932 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb))
933 return ndlp->nlp_state;
934
935 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
936 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
937 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
938
939 return ndlp->nlp_state;
940 }
941
942 static uint32_t
943 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
944 void *arg, uint32_t evt)
945 {
946 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
947
948 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
949 return ndlp->nlp_state;
950 }
951
952 static uint32_t
953 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
954 void *arg, uint32_t evt)
955 {
956 struct lpfc_hba *phba = vport->phba;
957 struct lpfc_iocbq *cmdiocb;
958
959 cmdiocb = (struct lpfc_iocbq *) arg;
960
961 /* software abort outstanding ADISC */
962 lpfc_els_abort(phba, ndlp);
963
964 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
965 return ndlp->nlp_state;
966 }
967
968 static uint32_t
969 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
970 struct lpfc_nodelist *ndlp,
971 void *arg, uint32_t evt)
972 {
973 struct lpfc_iocbq *cmdiocb;
974
975 cmdiocb = (struct lpfc_iocbq *) arg;
976
977 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
978 return ndlp->nlp_state;
979 }
980
981 static uint32_t
982 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
983 void *arg, uint32_t evt)
984 {
985 struct lpfc_iocbq *cmdiocb;
986
987 cmdiocb = (struct lpfc_iocbq *) arg;
988
989 /* Treat like rcv logo */
990 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
991 return ndlp->nlp_state;
992 }
993
994 static uint32_t
995 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
996 struct lpfc_nodelist *ndlp,
997 void *arg, uint32_t evt)
998 {
999 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1000 struct lpfc_hba *phba = vport->phba;
1001 struct lpfc_iocbq *cmdiocb, *rspiocb;
1002 IOCB_t *irsp;
1003 ADISC *ap;
1004
1005 cmdiocb = (struct lpfc_iocbq *) arg;
1006 rspiocb = cmdiocb->context_un.rsp_iocb;
1007
1008 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1009 irsp = &rspiocb->iocb;
1010
1011 if ((irsp->ulpStatus) ||
1012 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1013 /* 1 sec timeout */
1014 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1015 spin_lock_irq(shost->host_lock);
1016 ndlp->nlp_flag |= NLP_DELAY_TMO;
1017 spin_unlock_irq(shost->host_lock);
1018 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1019
1020 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1021 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1022
1023 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1024 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1025 lpfc_unreg_rpi(vport, ndlp);
1026 return ndlp->nlp_state;
1027 }
1028
1029 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1030 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1031 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1032 } else {
1033 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1034 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1035 }
1036 return ndlp->nlp_state;
1037 }
1038
1039 static uint32_t
1040 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1041 void *arg, uint32_t evt)
1042 {
1043 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1044
1045 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1046 spin_lock_irq(shost->host_lock);
1047 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1048 spin_unlock_irq(shost->host_lock);
1049 return ndlp->nlp_state;
1050 } else {
1051 /* software abort outstanding ADISC */
1052 lpfc_els_abort(vport->phba, ndlp);
1053
1054 lpfc_drop_node(vport, ndlp);
1055 return NLP_STE_FREED_NODE;
1056 }
1057 }
1058
1059 static uint32_t
1060 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1061 struct lpfc_nodelist *ndlp,
1062 void *arg,
1063 uint32_t evt)
1064 {
1065 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1066 struct lpfc_hba *phba = vport->phba;
1067
1068 /* Don't do anything that will mess up processing of the
1069 * previous RSCN.
1070 */
1071 if (vport->fc_flag & FC_RSCN_DEFERRED)
1072 return ndlp->nlp_state;
1073
1074 /* software abort outstanding ADISC */
1075 lpfc_els_abort(phba, ndlp);
1076
1077 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1078 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1079 spin_lock_irq(shost->host_lock);
1080 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1081 spin_unlock_irq(shost->host_lock);
1082 lpfc_disc_set_adisc(vport, ndlp);
1083 return ndlp->nlp_state;
1084 }
1085
1086 static uint32_t
1087 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1088 struct lpfc_nodelist *ndlp,
1089 void *arg,
1090 uint32_t evt)
1091 {
1092 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1093
1094 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1095 return ndlp->nlp_state;
1096 }
1097
1098 static uint32_t
1099 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1100 struct lpfc_nodelist *ndlp,
1101 void *arg,
1102 uint32_t evt)
1103 {
1104 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1105
1106 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1107 return ndlp->nlp_state;
1108 }
1109
1110 static uint32_t
1111 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1112 struct lpfc_nodelist *ndlp,
1113 void *arg,
1114 uint32_t evt)
1115 {
1116 struct lpfc_hba *phba = vport->phba;
1117 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1118 LPFC_MBOXQ_t *mb;
1119 LPFC_MBOXQ_t *nextmb;
1120 struct lpfc_dmabuf *mp;
1121
1122 cmdiocb = (struct lpfc_iocbq *) arg;
1123
1124 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1125 if ((mb = phba->sli.mbox_active)) {
1126 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1127 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1128 lpfc_nlp_put(ndlp);
1129 mb->context2 = NULL;
1130 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1131 }
1132 }
1133
1134 spin_lock_irq(&phba->hbalock);
1135 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1136 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1137 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1138 mp = (struct lpfc_dmabuf *) (mb->context1);
1139 if (mp) {
1140 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1141 kfree(mp);
1142 }
1143 lpfc_nlp_put(ndlp);
1144 list_del(&mb->list);
1145 mempool_free(mb, phba->mbox_mem_pool);
1146 }
1147 }
1148 spin_unlock_irq(&phba->hbalock);
1149
1150 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1151 return ndlp->nlp_state;
1152 }
1153
1154 static uint32_t
1155 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1156 struct lpfc_nodelist *ndlp,
1157 void *arg,
1158 uint32_t evt)
1159 {
1160 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1161
1162 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1163 return ndlp->nlp_state;
1164 }
1165
1166 static uint32_t
1167 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1168 struct lpfc_nodelist *ndlp,
1169 void *arg,
1170 uint32_t evt)
1171 {
1172 struct lpfc_iocbq *cmdiocb;
1173
1174 cmdiocb = (struct lpfc_iocbq *) arg;
1175 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1176 return ndlp->nlp_state;
1177 }
1178
1179 static uint32_t
1180 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1181 struct lpfc_nodelist *ndlp,
1182 void *arg,
1183 uint32_t evt)
1184 {
1185 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1186 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1187 MAILBOX_t *mb = &pmb->mb;
1188 uint32_t did = mb->un.varWords[1];
1189
1190 if (mb->mbxStatus) {
1191 /* RegLogin failed */
1192 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1193 "0246 RegLogin failed Data: x%x x%x x%x\n",
1194 did, mb->mbxStatus, vport->port_state);
1195 /*
1196 * If RegLogin failed due to lack of HBA resources do not
1197 * retry discovery.
1198 */
1199 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1200 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
1201 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1202 return ndlp->nlp_state;
1203 }
1204
1205 /* Put ndlp in npr state set plogi timer for 1 sec */
1206 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1207 spin_lock_irq(shost->host_lock);
1208 ndlp->nlp_flag |= NLP_DELAY_TMO;
1209 spin_unlock_irq(shost->host_lock);
1210 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1211
1212 lpfc_issue_els_logo(vport, ndlp, 0);
1213 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1214 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1215 return ndlp->nlp_state;
1216 }
1217
1218 ndlp->nlp_rpi = mb->un.varWords[0];
1219
1220 /* Only if we are not a fabric nport do we issue PRLI */
1221 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1222 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1223 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1224 lpfc_issue_els_prli(vport, ndlp, 0);
1225 } else {
1226 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1227 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1228 }
1229 return ndlp->nlp_state;
1230 }
1231
1232 static uint32_t
1233 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1234 struct lpfc_nodelist *ndlp,
1235 void *arg,
1236 uint32_t evt)
1237 {
1238 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1239
1240 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1241 spin_lock_irq(shost->host_lock);
1242 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1243 spin_unlock_irq(shost->host_lock);
1244 return ndlp->nlp_state;
1245 } else {
1246 lpfc_drop_node(vport, ndlp);
1247 return NLP_STE_FREED_NODE;
1248 }
1249 }
1250
1251 static uint32_t
1252 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1253 struct lpfc_nodelist *ndlp,
1254 void *arg,
1255 uint32_t evt)
1256 {
1257 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1258
1259 /* Don't do anything that will mess up processing of the
1260 * previous RSCN.
1261 */
1262 if (vport->fc_flag & FC_RSCN_DEFERRED)
1263 return ndlp->nlp_state;
1264
1265 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1266 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1267 spin_lock_irq(shost->host_lock);
1268 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1269 spin_unlock_irq(shost->host_lock);
1270 lpfc_disc_set_adisc(vport, ndlp);
1271 return ndlp->nlp_state;
1272 }
1273
1274 static uint32_t
1275 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1276 void *arg, uint32_t evt)
1277 {
1278 struct lpfc_iocbq *cmdiocb;
1279
1280 cmdiocb = (struct lpfc_iocbq *) arg;
1281
1282 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1283 return ndlp->nlp_state;
1284 }
1285
1286 static uint32_t
1287 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1288 void *arg, uint32_t evt)
1289 {
1290 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1291
1292 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1293 return ndlp->nlp_state;
1294 }
1295
1296 static uint32_t
1297 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1298 void *arg, uint32_t evt)
1299 {
1300 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1301
1302 /* Software abort outstanding PRLI before sending acc */
1303 lpfc_els_abort(vport->phba, ndlp);
1304
1305 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1306 return ndlp->nlp_state;
1307 }
1308
1309 static uint32_t
1310 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1311 void *arg, uint32_t evt)
1312 {
1313 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1314
1315 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1316 return ndlp->nlp_state;
1317 }
1318
1319 /* This routine is envoked when we rcv a PRLO request from a nport
1320 * we are logged into. We should send back a PRLO rsp setting the
1321 * appropriate bits.
1322 * NEXT STATE = PRLI_ISSUE
1323 */
1324 static uint32_t
1325 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1326 void *arg, uint32_t evt)
1327 {
1328 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1329
1330 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1331 return ndlp->nlp_state;
1332 }
1333
1334 static uint32_t
1335 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1336 void *arg, uint32_t evt)
1337 {
1338 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1339 struct lpfc_iocbq *cmdiocb, *rspiocb;
1340 struct lpfc_hba *phba = vport->phba;
1341 IOCB_t *irsp;
1342 PRLI *npr;
1343
1344 cmdiocb = (struct lpfc_iocbq *) arg;
1345 rspiocb = cmdiocb->context_un.rsp_iocb;
1346 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1347
1348 irsp = &rspiocb->iocb;
1349 if (irsp->ulpStatus) {
1350 if ((vport->port_type == LPFC_NPIV_PORT) &&
1351 vport->cfg_restrict_login) {
1352 goto out;
1353 }
1354 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1355 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1356 return ndlp->nlp_state;
1357 }
1358
1359 /* Check out PRLI rsp */
1360 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1361 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1362 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1363 (npr->prliType == PRLI_FCP_TYPE)) {
1364 if (npr->initiatorFunc)
1365 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1366 if (npr->targetFunc)
1367 ndlp->nlp_type |= NLP_FCP_TARGET;
1368 if (npr->Retry)
1369 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1370 }
1371 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1372 (vport->port_type == LPFC_NPIV_PORT) &&
1373 vport->cfg_restrict_login) {
1374 out:
1375 spin_lock_irq(shost->host_lock);
1376 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1377 spin_unlock_irq(shost->host_lock);
1378 lpfc_issue_els_logo(vport, ndlp, 0);
1379
1380 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1381 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1382 return ndlp->nlp_state;
1383 }
1384
1385 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1386 if (ndlp->nlp_type & NLP_FCP_TARGET)
1387 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1388 else
1389 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1390 return ndlp->nlp_state;
1391 }
1392
1393 /*! lpfc_device_rm_prli_issue
1394 *
1395 * \pre
1396 * \post
1397 * \param phba
1398 * \param ndlp
1399 * \param arg
1400 * \param evt
1401 * \return uint32_t
1402 *
1403 * \b Description:
1404 * This routine is envoked when we a request to remove a nport we are in the
1405 * process of PRLIing. We should software abort outstanding prli, unreg
1406 * login, send a logout. We will change node state to UNUSED_NODE, put it
1407 * on plogi list so it can be freed when LOGO completes.
1408 *
1409 */
1410
1411 static uint32_t
1412 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1413 void *arg, uint32_t evt)
1414 {
1415 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1416
1417 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1418 spin_lock_irq(shost->host_lock);
1419 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1420 spin_unlock_irq(shost->host_lock);
1421 return ndlp->nlp_state;
1422 } else {
1423 /* software abort outstanding PLOGI */
1424 lpfc_els_abort(vport->phba, ndlp);
1425
1426 lpfc_drop_node(vport, ndlp);
1427 return NLP_STE_FREED_NODE;
1428 }
1429 }
1430
1431
1432 /*! lpfc_device_recov_prli_issue
1433 *
1434 * \pre
1435 * \post
1436 * \param phba
1437 * \param ndlp
1438 * \param arg
1439 * \param evt
1440 * \return uint32_t
1441 *
1442 * \b Description:
1443 * The routine is envoked when the state of a device is unknown, like
1444 * during a link down. We should remove the nodelist entry from the
1445 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1446 * outstanding PRLI command, then free the node entry.
1447 */
1448 static uint32_t
1449 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1450 struct lpfc_nodelist *ndlp,
1451 void *arg,
1452 uint32_t evt)
1453 {
1454 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1455 struct lpfc_hba *phba = vport->phba;
1456
1457 /* Don't do anything that will mess up processing of the
1458 * previous RSCN.
1459 */
1460 if (vport->fc_flag & FC_RSCN_DEFERRED)
1461 return ndlp->nlp_state;
1462
1463 /* software abort outstanding PRLI */
1464 lpfc_els_abort(phba, ndlp);
1465
1466 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1467 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1468 spin_lock_irq(shost->host_lock);
1469 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1470 spin_unlock_irq(shost->host_lock);
1471 lpfc_disc_set_adisc(vport, ndlp);
1472 return ndlp->nlp_state;
1473 }
1474
1475 static uint32_t
1476 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1477 void *arg, uint32_t evt)
1478 {
1479 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1480
1481 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1482 return ndlp->nlp_state;
1483 }
1484
1485 static uint32_t
1486 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1487 void *arg, uint32_t evt)
1488 {
1489 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1490
1491 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1492 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1493 return ndlp->nlp_state;
1494 }
1495
1496 static uint32_t
1497 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1498 void *arg, uint32_t evt)
1499 {
1500 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1501
1502 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1503 return ndlp->nlp_state;
1504 }
1505
1506 static uint32_t
1507 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1508 void *arg, uint32_t evt)
1509 {
1510 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1511
1512 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1513 return ndlp->nlp_state;
1514 }
1515
1516 static uint32_t
1517 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1518 void *arg, uint32_t evt)
1519 {
1520 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1521
1522 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1523 return ndlp->nlp_state;
1524 }
1525
1526 static uint32_t
1527 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1528 struct lpfc_nodelist *ndlp,
1529 void *arg,
1530 uint32_t evt)
1531 {
1532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1533
1534 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1535 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1536 spin_lock_irq(shost->host_lock);
1537 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1538 spin_unlock_irq(shost->host_lock);
1539 lpfc_disc_set_adisc(vport, ndlp);
1540
1541 return ndlp->nlp_state;
1542 }
1543
1544 static uint32_t
1545 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1546 void *arg, uint32_t evt)
1547 {
1548 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1549
1550 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1551 return ndlp->nlp_state;
1552 }
1553
1554 static uint32_t
1555 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1556 void *arg, uint32_t evt)
1557 {
1558 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1559
1560 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1561 return ndlp->nlp_state;
1562 }
1563
1564 static uint32_t
1565 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1566 void *arg, uint32_t evt)
1567 {
1568 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1569
1570 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1571 return ndlp->nlp_state;
1572 }
1573
1574 static uint32_t
1575 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1576 struct lpfc_nodelist *ndlp,
1577 void *arg, uint32_t evt)
1578 {
1579 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1580
1581 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1582 return ndlp->nlp_state;
1583 }
1584
1585 static uint32_t
1586 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1587 void *arg, uint32_t evt)
1588 {
1589 struct lpfc_hba *phba = vport->phba;
1590 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1591
1592 /* flush the target */
1593 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1594 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
1595
1596 /* Treat like rcv logo */
1597 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1598 return ndlp->nlp_state;
1599 }
1600
1601 static uint32_t
1602 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1603 struct lpfc_nodelist *ndlp,
1604 void *arg,
1605 uint32_t evt)
1606 {
1607 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1608
1609 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1610 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1611 spin_lock_irq(shost->host_lock);
1612 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1613 spin_unlock_irq(shost->host_lock);
1614 lpfc_disc_set_adisc(vport, ndlp);
1615 return ndlp->nlp_state;
1616 }
1617
1618 static uint32_t
1619 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1620 void *arg, uint32_t evt)
1621 {
1622 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1623 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1624
1625 /* Ignore PLOGI if we have an outstanding LOGO */
1626 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) {
1627 return ndlp->nlp_state;
1628 }
1629
1630 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1631 spin_lock_irq(shost->host_lock);
1632 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1633 spin_unlock_irq(shost->host_lock);
1634 return ndlp->nlp_state;
1635 }
1636
1637 /* send PLOGI immediately, move to PLOGI issue state */
1638 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1639 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1640 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1641 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1642 }
1643
1644 return ndlp->nlp_state;
1645 }
1646
1647 static uint32_t
1648 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1649 void *arg, uint32_t evt)
1650 {
1651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1652 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1653 struct ls_rjt stat;
1654
1655 memset(&stat, 0, sizeof (struct ls_rjt));
1656 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1657 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1658 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1659
1660 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1661 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1662 spin_lock_irq(shost->host_lock);
1663 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1664 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1665 spin_unlock_irq(shost->host_lock);
1666 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1667 lpfc_issue_els_adisc(vport, ndlp, 0);
1668 } else {
1669 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1670 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1671 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1672 }
1673 }
1674 return ndlp->nlp_state;
1675 }
1676
1677 static uint32_t
1678 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1679 void *arg, uint32_t evt)
1680 {
1681 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1682
1683 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1684 return ndlp->nlp_state;
1685 }
1686
1687 static uint32_t
1688 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1689 void *arg, uint32_t evt)
1690 {
1691 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1692
1693 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1694
1695 /*
1696 * Do not start discovery if discovery is about to start
1697 * or discovery in progress for this node. Starting discovery
1698 * here will affect the counting of discovery threads.
1699 */
1700 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1701 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1702 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1703 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1704 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1705 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1706 lpfc_issue_els_adisc(vport, ndlp, 0);
1707 } else {
1708 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1709 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1710 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1711 }
1712 }
1713 return ndlp->nlp_state;
1714 }
1715
1716 static uint32_t
1717 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1718 void *arg, uint32_t evt)
1719 {
1720 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1721 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1722
1723 spin_lock_irq(shost->host_lock);
1724 ndlp->nlp_flag |= NLP_LOGO_ACC;
1725 spin_unlock_irq(shost->host_lock);
1726
1727 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1728
1729 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
1730 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1731 spin_lock_irq(shost->host_lock);
1732 ndlp->nlp_flag |= NLP_DELAY_TMO;
1733 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1734 spin_unlock_irq(shost->host_lock);
1735 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1736 } else {
1737 spin_lock_irq(shost->host_lock);
1738 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1739 spin_unlock_irq(shost->host_lock);
1740 }
1741 return ndlp->nlp_state;
1742 }
1743
1744 static uint32_t
1745 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1746 void *arg, uint32_t evt)
1747 {
1748 struct lpfc_iocbq *cmdiocb, *rspiocb;
1749 IOCB_t *irsp;
1750
1751 cmdiocb = (struct lpfc_iocbq *) arg;
1752 rspiocb = cmdiocb->context_un.rsp_iocb;
1753
1754 irsp = &rspiocb->iocb;
1755 if (irsp->ulpStatus) {
1756 lpfc_drop_node(vport, ndlp);
1757 return NLP_STE_FREED_NODE;
1758 }
1759 return ndlp->nlp_state;
1760 }
1761
1762 static uint32_t
1763 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1764 void *arg, uint32_t evt)
1765 {
1766 struct lpfc_iocbq *cmdiocb, *rspiocb;
1767 IOCB_t *irsp;
1768
1769 cmdiocb = (struct lpfc_iocbq *) arg;
1770 rspiocb = cmdiocb->context_un.rsp_iocb;
1771
1772 irsp = &rspiocb->iocb;
1773 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1774 lpfc_drop_node(vport, ndlp);
1775 return NLP_STE_FREED_NODE;
1776 }
1777 return ndlp->nlp_state;
1778 }
1779
1780 static uint32_t
1781 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1782 void *arg, uint32_t evt)
1783 {
1784 lpfc_unreg_rpi(vport, ndlp);
1785 /* This routine does nothing, just return the current state */
1786 return ndlp->nlp_state;
1787 }
1788
1789 static uint32_t
1790 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1791 void *arg, uint32_t evt)
1792 {
1793 struct lpfc_iocbq *cmdiocb, *rspiocb;
1794 IOCB_t *irsp;
1795
1796 cmdiocb = (struct lpfc_iocbq *) arg;
1797 rspiocb = cmdiocb->context_un.rsp_iocb;
1798
1799 irsp = &rspiocb->iocb;
1800 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1801 lpfc_drop_node(vport, ndlp);
1802 return NLP_STE_FREED_NODE;
1803 }
1804 return ndlp->nlp_state;
1805 }
1806
1807 static uint32_t
1808 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1809 struct lpfc_nodelist *ndlp,
1810 void *arg, uint32_t evt)
1811 {
1812 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1813 MAILBOX_t *mb = &pmb->mb;
1814
1815 if (!mb->mbxStatus)
1816 ndlp->nlp_rpi = mb->un.varWords[0];
1817 else {
1818 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
1819 lpfc_drop_node(vport, ndlp);
1820 return NLP_STE_FREED_NODE;
1821 }
1822 }
1823 return ndlp->nlp_state;
1824 }
1825
1826 static uint32_t
1827 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1828 void *arg, uint32_t evt)
1829 {
1830 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1831
1832 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1833 spin_lock_irq(shost->host_lock);
1834 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1835 spin_unlock_irq(shost->host_lock);
1836 return ndlp->nlp_state;
1837 }
1838 lpfc_drop_node(vport, ndlp);
1839 return NLP_STE_FREED_NODE;
1840 }
1841
1842 static uint32_t
1843 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1844 void *arg, uint32_t evt)
1845 {
1846 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1847
1848 /* Don't do anything that will mess up processing of the
1849 * previous RSCN.
1850 */
1851 if (vport->fc_flag & FC_RSCN_DEFERRED)
1852 return ndlp->nlp_state;
1853
1854 spin_lock_irq(shost->host_lock);
1855 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1856 spin_unlock_irq(shost->host_lock);
1857 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1858 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1859 }
1860 return ndlp->nlp_state;
1861 }
1862
1863
1864 /* This next section defines the NPort Discovery State Machine */
1865
1866 /* There are 4 different double linked lists nodelist entries can reside on.
1867 * The plogi list and adisc list are used when Link Up discovery or RSCN
1868 * processing is needed. Each list holds the nodes that we will send PLOGI
1869 * or ADISC on. These lists will keep track of what nodes will be effected
1870 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1871 * The unmapped_list will contain all nodes that we have successfully logged
1872 * into at the Fibre Channel level. The mapped_list will contain all nodes
1873 * that are mapped FCP targets.
1874 */
1875 /*
1876 * The bind list is a list of undiscovered (potentially non-existent) nodes
1877 * that we have saved binding information on. This information is used when
1878 * nodes transition from the unmapped to the mapped list.
1879 */
1880 /* For UNUSED_NODE state, the node has just been allocated .
1881 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1882 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1883 * and put on the unmapped list. For ADISC processing, the node is taken off
1884 * the ADISC list and placed on either the mapped or unmapped list (depending
1885 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1886 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1887 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1888 * node, the node is taken off the unmapped list. The binding list is checked
1889 * for a valid binding, or a binding is automatically assigned. If binding
1890 * assignment is unsuccessful, the node is left on the unmapped list. If
1891 * binding assignment is successful, the associated binding list entry (if
1892 * any) is removed, and the node is placed on the mapped list.
1893 */
1894 /*
1895 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1896 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
1897 * expire, all effected nodes will receive a DEVICE_RM event.
1898 */
1899 /*
1900 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1901 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1902 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1903 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1904 * we will first process the ADISC list. 32 entries are processed initially and
1905 * ADISC is initited for each one. Completions / Events for each node are
1906 * funnelled thru the state machine. As each node finishes ADISC processing, it
1907 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1908 * waiting, and the ADISC list count is identically 0, then we are done. For
1909 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1910 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1911 * list. 32 entries are processed initially and PLOGI is initited for each one.
1912 * Completions / Events for each node are funnelled thru the state machine. As
1913 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1914 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1915 * indentically 0, then we are done. We have now completed discovery / RSCN
1916 * handling. Upon completion, ALL nodes should be on either the mapped or
1917 * unmapped lists.
1918 */
1919
1920 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1921 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
1922 /* Action routine Event Current State */
1923 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1924 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1925 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1926 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1927 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1928 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1929 lpfc_disc_illegal, /* CMPL_PLOGI */
1930 lpfc_disc_illegal, /* CMPL_PRLI */
1931 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1932 lpfc_disc_illegal, /* CMPL_ADISC */
1933 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1934 lpfc_device_rm_unused_node, /* DEVICE_RM */
1935 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1936
1937 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1938 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
1939 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
1940 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1941 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1942 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1943 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1944 lpfc_disc_illegal, /* CMPL_PRLI */
1945 lpfc_disc_illegal, /* CMPL_LOGO */
1946 lpfc_disc_illegal, /* CMPL_ADISC */
1947 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1948 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1949 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1950
1951 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1952 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1953 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1954 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1955 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1956 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1957 lpfc_disc_illegal, /* CMPL_PLOGI */
1958 lpfc_disc_illegal, /* CMPL_PRLI */
1959 lpfc_disc_illegal, /* CMPL_LOGO */
1960 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1961 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1962 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1963 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1964
1965 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1966 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1967 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1968 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1969 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1970 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1971 lpfc_disc_illegal, /* CMPL_PLOGI */
1972 lpfc_disc_illegal, /* CMPL_PRLI */
1973 lpfc_disc_illegal, /* CMPL_LOGO */
1974 lpfc_disc_illegal, /* CMPL_ADISC */
1975 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1976 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1977 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1978
1979 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1980 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1981 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1982 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1983 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1984 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1985 lpfc_disc_illegal, /* CMPL_PLOGI */
1986 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1987 lpfc_disc_illegal, /* CMPL_LOGO */
1988 lpfc_disc_illegal, /* CMPL_ADISC */
1989 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1990 lpfc_device_rm_prli_issue, /* DEVICE_RM */
1991 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
1992
1993 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
1994 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
1995 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
1996 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
1997 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
1998 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
1999 lpfc_disc_illegal, /* CMPL_PLOGI */
2000 lpfc_disc_illegal, /* CMPL_PRLI */
2001 lpfc_disc_illegal, /* CMPL_LOGO */
2002 lpfc_disc_illegal, /* CMPL_ADISC */
2003 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2004 lpfc_disc_illegal, /* DEVICE_RM */
2005 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2006
2007 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2008 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2009 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2010 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2011 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2012 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2013 lpfc_disc_illegal, /* CMPL_PLOGI */
2014 lpfc_disc_illegal, /* CMPL_PRLI */
2015 lpfc_disc_illegal, /* CMPL_LOGO */
2016 lpfc_disc_illegal, /* CMPL_ADISC */
2017 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2018 lpfc_disc_illegal, /* DEVICE_RM */
2019 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2020
2021 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2022 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2023 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2024 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2025 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2026 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2027 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2028 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2029 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2030 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2031 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2032 lpfc_device_rm_npr_node, /* DEVICE_RM */
2033 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2034 };
2035
2036 int
2037 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2038 void *arg, uint32_t evt)
2039 {
2040 uint32_t cur_state, rc;
2041 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2042 uint32_t);
2043
2044 lpfc_nlp_get(ndlp);
2045 cur_state = ndlp->nlp_state;
2046
2047 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2048 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2049 "0211 DSM in event x%x on NPort x%x in "
2050 "state %d Data: x%x\n",
2051 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2052
2053 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2054 "DSM in: evt:%d ste:%d did:x%x",
2055 evt, cur_state, ndlp->nlp_DID);
2056
2057 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2058 rc = (func) (vport, ndlp, arg, evt);
2059
2060 /* DSM out state <rc> on NPort <nlp_DID> */
2061 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2062 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2063 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2064
2065 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2066 "DSM out: ste:%d did:x%x flg:x%x",
2067 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2068
2069 lpfc_nlp_put(ndlp);
2070
2071 return rc;
2072 }
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