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i40e: Implement ndo_features_check()
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 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/slab.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
31
32 #include "lpfc_hw4.h"
33 #include "lpfc_hw.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_sli4.h"
36 #include "lpfc_nl.h"
37 #include "lpfc_disc.h"
38 #include "lpfc_scsi.h"
39 #include "lpfc.h"
40 #include "lpfc_logmsg.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_vport.h"
43 #include "lpfc_debugfs.h"
44
45
46 /* Called to verify a rcv'ed ADISC was intended for us. */
47 static int
48 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
49 struct lpfc_name *nn, struct lpfc_name *pn)
50 {
51 /* First, we MUST have a RPI registered */
52 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
53 return 0;
54
55 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
56 * table entry for that node.
57 */
58 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
59 return 0;
60
61 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
62 return 0;
63
64 /* we match, return success */
65 return 1;
66 }
67
68 int
69 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
70 struct serv_parm *sp, uint32_t class, int flogi)
71 {
72 volatile struct serv_parm *hsp = &vport->fc_sparam;
73 uint16_t hsp_value, ssp_value = 0;
74
75 /*
76 * The receive data field size and buffer-to-buffer receive data field
77 * size entries are 16 bits but are represented as two 8-bit fields in
78 * the driver data structure to account for rsvd bits and other control
79 * bits. Reconstruct and compare the fields as a 16-bit values before
80 * correcting the byte values.
81 */
82 if (sp->cls1.classValid) {
83 if (!flogi) {
84 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
85 hsp->cls1.rcvDataSizeLsb);
86 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
87 sp->cls1.rcvDataSizeLsb);
88 if (!ssp_value)
89 goto bad_service_param;
90 if (ssp_value > hsp_value) {
91 sp->cls1.rcvDataSizeLsb =
92 hsp->cls1.rcvDataSizeLsb;
93 sp->cls1.rcvDataSizeMsb =
94 hsp->cls1.rcvDataSizeMsb;
95 }
96 }
97 } else if (class == CLASS1)
98 goto bad_service_param;
99 if (sp->cls2.classValid) {
100 if (!flogi) {
101 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
102 hsp->cls2.rcvDataSizeLsb);
103 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
104 sp->cls2.rcvDataSizeLsb);
105 if (!ssp_value)
106 goto bad_service_param;
107 if (ssp_value > hsp_value) {
108 sp->cls2.rcvDataSizeLsb =
109 hsp->cls2.rcvDataSizeLsb;
110 sp->cls2.rcvDataSizeMsb =
111 hsp->cls2.rcvDataSizeMsb;
112 }
113 }
114 } else if (class == CLASS2)
115 goto bad_service_param;
116 if (sp->cls3.classValid) {
117 if (!flogi) {
118 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
119 hsp->cls3.rcvDataSizeLsb);
120 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
121 sp->cls3.rcvDataSizeLsb);
122 if (!ssp_value)
123 goto bad_service_param;
124 if (ssp_value > hsp_value) {
125 sp->cls3.rcvDataSizeLsb =
126 hsp->cls3.rcvDataSizeLsb;
127 sp->cls3.rcvDataSizeMsb =
128 hsp->cls3.rcvDataSizeMsb;
129 }
130 }
131 } else if (class == CLASS3)
132 goto bad_service_param;
133
134 /*
135 * Preserve the upper four bits of the MSB from the PLOGI response.
136 * These bits contain the Buffer-to-Buffer State Change Number
137 * from the target and need to be passed to the FW.
138 */
139 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
140 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
141 if (ssp_value > hsp_value) {
142 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
143 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
144 (hsp->cmn.bbRcvSizeMsb & 0x0F);
145 }
146
147 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
148 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
149 return 1;
150 bad_service_param:
151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
152 "0207 Device %x "
153 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
154 "invalid service parameters. Ignoring device.\n",
155 ndlp->nlp_DID,
156 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
157 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
158 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
159 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
160 return 0;
161 }
162
163 static void *
164 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
165 struct lpfc_iocbq *rspiocb)
166 {
167 struct lpfc_dmabuf *pcmd, *prsp;
168 uint32_t *lp;
169 void *ptr = NULL;
170 IOCB_t *irsp;
171
172 irsp = &rspiocb->iocb;
173 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
174
175 /* For lpfc_els_abort, context2 could be zero'ed to delay
176 * freeing associated memory till after ABTS completes.
177 */
178 if (pcmd) {
179 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
180 list);
181 if (prsp) {
182 lp = (uint32_t *) prsp->virt;
183 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
184 }
185 } else {
186 /* Force ulpStatus error since we are returning NULL ptr */
187 if (!(irsp->ulpStatus)) {
188 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
189 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
190 }
191 ptr = NULL;
192 }
193 return ptr;
194 }
195
196
197
198 /*
199 * Free resources / clean up outstanding I/Os
200 * associated with a LPFC_NODELIST entry. This
201 * routine effectively results in a "software abort".
202 */
203 int
204 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
205 {
206 LIST_HEAD(abort_list);
207 struct lpfc_sli *psli = &phba->sli;
208 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
209 struct lpfc_iocbq *iocb, *next_iocb;
210
211 /* Abort outstanding I/O on NPort <nlp_DID> */
212 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
213 "2819 Abort outstanding I/O on NPort x%x "
214 "Data: x%x x%x x%x\n",
215 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
216 ndlp->nlp_rpi);
217 /* Clean up all fabric IOs first.*/
218 lpfc_fabric_abort_nport(ndlp);
219
220 /*
221 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list
222 * of all ELS IOs that need an ABTS. The IOs need to stay on the
223 * txcmplq so that the abort operation completes them successfully.
224 */
225 spin_lock_irq(&phba->hbalock);
226 if (phba->sli_rev == LPFC_SLI_REV4)
227 spin_lock(&pring->ring_lock);
228 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
229 /* Add to abort_list on on NDLP match. */
230 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
231 list_add_tail(&iocb->dlist, &abort_list);
232 }
233 if (phba->sli_rev == LPFC_SLI_REV4)
234 spin_unlock(&pring->ring_lock);
235 spin_unlock_irq(&phba->hbalock);
236
237 /* Abort the targeted IOs and remove them from the abort list. */
238 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
239 spin_lock_irq(&phba->hbalock);
240 list_del_init(&iocb->dlist);
241 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
242 spin_unlock_irq(&phba->hbalock);
243 }
244
245 INIT_LIST_HEAD(&abort_list);
246
247 /* Now process the txq */
248 spin_lock_irq(&phba->hbalock);
249 if (phba->sli_rev == LPFC_SLI_REV4)
250 spin_lock(&pring->ring_lock);
251
252 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
253 /* Check to see if iocb matches the nport we are looking for */
254 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
255 list_del_init(&iocb->list);
256 list_add_tail(&iocb->list, &abort_list);
257 }
258 }
259
260 if (phba->sli_rev == LPFC_SLI_REV4)
261 spin_unlock(&pring->ring_lock);
262 spin_unlock_irq(&phba->hbalock);
263
264 /* Cancel all the IOCBs from the completions list */
265 lpfc_sli_cancel_iocbs(phba, &abort_list,
266 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
267
268 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
269 return 0;
270 }
271
272 static int
273 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
274 struct lpfc_iocbq *cmdiocb)
275 {
276 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
277 struct lpfc_hba *phba = vport->phba;
278 struct lpfc_dmabuf *pcmd;
279 uint64_t nlp_portwwn = 0;
280 uint32_t *lp;
281 IOCB_t *icmd;
282 struct serv_parm *sp;
283 LPFC_MBOXQ_t *mbox;
284 struct ls_rjt stat;
285 int rc;
286
287 memset(&stat, 0, sizeof (struct ls_rjt));
288 if (vport->port_state <= LPFC_FDISC) {
289 /* Before responding to PLOGI, check for pt2pt mode.
290 * If we are pt2pt, with an outstanding FLOGI, abort
291 * the FLOGI and resend it first.
292 */
293 if (vport->fc_flag & FC_PT2PT) {
294 lpfc_els_abort_flogi(phba);
295 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
296 /* If the other side is supposed to initiate
297 * the PLOGI anyway, just ACC it now and
298 * move on with discovery.
299 */
300 phba->fc_edtov = FF_DEF_EDTOV;
301 phba->fc_ratov = FF_DEF_RATOV;
302 /* Start discovery - this should just do
303 CLEAR_LA */
304 lpfc_disc_start(vport);
305 } else
306 lpfc_initial_flogi(vport);
307 } else {
308 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
309 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
311 ndlp, NULL);
312 return 0;
313 }
314 }
315 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
316 lp = (uint32_t *) pcmd->virt;
317 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
318 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
319 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
320 "0140 PLOGI Reject: invalid nname\n");
321 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
322 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
323 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
324 NULL);
325 return 0;
326 }
327 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
328 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
329 "0141 PLOGI Reject: invalid pname\n");
330 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
331 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
332 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
333 NULL);
334 return 0;
335 }
336
337 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn);
338 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
339 /* Reject this request because invalid parameters */
340 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
341 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
342 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
343 NULL);
344 return 0;
345 }
346 icmd = &cmdiocb->iocb;
347
348 /* PLOGI chkparm OK */
349 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
350 "0114 PLOGI chkparm OK Data: x%x x%x x%x "
351 "x%x x%x x%x\n",
352 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
353 ndlp->nlp_rpi, vport->port_state,
354 vport->fc_flag);
355
356 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
357 ndlp->nlp_fcp_info |= CLASS2;
358 else
359 ndlp->nlp_fcp_info |= CLASS3;
360
361 ndlp->nlp_class_sup = 0;
362 if (sp->cls1.classValid)
363 ndlp->nlp_class_sup |= FC_COS_CLASS1;
364 if (sp->cls2.classValid)
365 ndlp->nlp_class_sup |= FC_COS_CLASS2;
366 if (sp->cls3.classValid)
367 ndlp->nlp_class_sup |= FC_COS_CLASS3;
368 if (sp->cls4.classValid)
369 ndlp->nlp_class_sup |= FC_COS_CLASS4;
370 ndlp->nlp_maxframe =
371 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
372
373 /* if already logged in, do implicit logout */
374 switch (ndlp->nlp_state) {
375 case NLP_STE_NPR_NODE:
376 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
377 break;
378 case NLP_STE_REG_LOGIN_ISSUE:
379 case NLP_STE_PRLI_ISSUE:
380 case NLP_STE_UNMAPPED_NODE:
381 case NLP_STE_MAPPED_NODE:
382 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */
383 if (!(ndlp->nlp_type & NLP_FABRIC)) {
384 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
385 ndlp, NULL);
386 return 1;
387 }
388 if (nlp_portwwn != 0 &&
389 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn))
390 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
391 "0143 PLOGI recv'd from DID: x%x "
392 "WWPN changed: old %llx new %llx\n",
393 ndlp->nlp_DID,
394 (unsigned long long)nlp_portwwn,
395 (unsigned long long)
396 wwn_to_u64(sp->portName.u.wwn));
397
398 ndlp->nlp_prev_state = ndlp->nlp_state;
399 /* rport needs to be unregistered first */
400 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
401 break;
402 }
403
404 /* Check for Nport to NPort pt2pt protocol */
405 if ((vport->fc_flag & FC_PT2PT) &&
406 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
407
408 /* rcv'ed PLOGI decides what our NPortId will be */
409 vport->fc_myDID = icmd->un.rcvels.parmRo;
410 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
411 if (mbox == NULL)
412 goto out;
413 lpfc_config_link(phba, mbox);
414 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
415 mbox->vport = vport;
416 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
417 if (rc == MBX_NOT_FINISHED) {
418 mempool_free(mbox, phba->mbox_mem_pool);
419 goto out;
420 }
421 /*
422 * For SLI4, the VFI/VPI are registered AFTER the
423 * Nport with the higher WWPN sends us a PLOGI with
424 * our assigned NPortId.
425 */
426 if (phba->sli_rev == LPFC_SLI_REV4)
427 lpfc_issue_reg_vfi(vport);
428
429 lpfc_can_disctmo(vport);
430 }
431 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
432 if (!mbox)
433 goto out;
434
435 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
436 if (phba->sli_rev == LPFC_SLI_REV4)
437 lpfc_unreg_rpi(vport, ndlp);
438
439 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
440 (uint8_t *) sp, mbox, ndlp->nlp_rpi);
441 if (rc) {
442 mempool_free(mbox, phba->mbox_mem_pool);
443 goto out;
444 }
445
446 /* ACC PLOGI rsp command needs to execute first,
447 * queue this mbox command to be processed later.
448 */
449 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
450 /*
451 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
452 * command issued in lpfc_cmpl_els_acc().
453 */
454 mbox->vport = vport;
455 spin_lock_irq(shost->host_lock);
456 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
457 spin_unlock_irq(shost->host_lock);
458
459 /*
460 * If there is an outstanding PLOGI issued, abort it before
461 * sending ACC rsp for received PLOGI. If pending plogi
462 * is not canceled here, the plogi will be rejected by
463 * remote port and will be retried. On a configuration with
464 * single discovery thread, this will cause a huge delay in
465 * discovery. Also this will cause multiple state machines
466 * running in parallel for this node.
467 */
468 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
469 /* software abort outstanding PLOGI */
470 lpfc_els_abort(phba, ndlp);
471 }
472
473 if ((vport->port_type == LPFC_NPIV_PORT &&
474 vport->cfg_restrict_login)) {
475
476 /* In order to preserve RPIs, we want to cleanup
477 * the default RPI the firmware created to rcv
478 * this ELS request. The only way to do this is
479 * to register, then unregister the RPI.
480 */
481 spin_lock_irq(shost->host_lock);
482 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
483 spin_unlock_irq(shost->host_lock);
484 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
485 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
486 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
487 ndlp, mbox);
488 if (rc)
489 mempool_free(mbox, phba->mbox_mem_pool);
490 return 1;
491 }
492 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
493 if (rc)
494 mempool_free(mbox, phba->mbox_mem_pool);
495 return 1;
496 out:
497 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
498 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
499 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
500 return 0;
501 }
502
503 /**
504 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
505 * @phba: pointer to lpfc hba data structure.
506 * @mboxq: pointer to mailbox object
507 *
508 * This routine is invoked to issue a completion to a rcv'ed
509 * ADISC or PDISC after the paused RPI has been resumed.
510 **/
511 static void
512 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
513 {
514 struct lpfc_vport *vport;
515 struct lpfc_iocbq *elsiocb;
516 struct lpfc_nodelist *ndlp;
517 uint32_t cmd;
518
519 elsiocb = (struct lpfc_iocbq *)mboxq->context1;
520 ndlp = (struct lpfc_nodelist *) mboxq->context2;
521 vport = mboxq->vport;
522 cmd = elsiocb->drvrTimeout;
523
524 if (cmd == ELS_CMD_ADISC) {
525 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
526 } else {
527 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
528 ndlp, NULL);
529 }
530 kfree(elsiocb);
531 mempool_free(mboxq, phba->mbox_mem_pool);
532 }
533
534 static int
535 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
536 struct lpfc_iocbq *cmdiocb)
537 {
538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
539 struct lpfc_iocbq *elsiocb;
540 struct lpfc_dmabuf *pcmd;
541 struct serv_parm *sp;
542 struct lpfc_name *pnn, *ppn;
543 struct ls_rjt stat;
544 ADISC *ap;
545 IOCB_t *icmd;
546 uint32_t *lp;
547 uint32_t cmd;
548
549 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
550 lp = (uint32_t *) pcmd->virt;
551
552 cmd = *lp++;
553 if (cmd == ELS_CMD_ADISC) {
554 ap = (ADISC *) lp;
555 pnn = (struct lpfc_name *) & ap->nodeName;
556 ppn = (struct lpfc_name *) & ap->portName;
557 } else {
558 sp = (struct serv_parm *) lp;
559 pnn = (struct lpfc_name *) & sp->nodeName;
560 ppn = (struct lpfc_name *) & sp->portName;
561 }
562
563 icmd = &cmdiocb->iocb;
564 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
565
566 /*
567 * As soon as we send ACC, the remote NPort can
568 * start sending us data. Thus, for SLI4 we must
569 * resume the RPI before the ACC goes out.
570 */
571 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
572 elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
573 GFP_KERNEL);
574 if (elsiocb) {
575
576 /* Save info from cmd IOCB used in rsp */
577 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
578 sizeof(struct lpfc_iocbq));
579
580 /* Save the ELS cmd */
581 elsiocb->drvrTimeout = cmd;
582
583 lpfc_sli4_resume_rpi(ndlp,
584 lpfc_mbx_cmpl_resume_rpi, elsiocb);
585 goto out;
586 }
587 }
588
589 if (cmd == ELS_CMD_ADISC) {
590 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
591 } else {
592 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
593 ndlp, NULL);
594 }
595 out:
596 /* If we are authenticated, move to the proper state */
597 if (ndlp->nlp_type & NLP_FCP_TARGET)
598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
599 else
600 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
601
602 return 1;
603 }
604 /* Reject this request because invalid parameters */
605 stat.un.b.lsRjtRsvd0 = 0;
606 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
607 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
608 stat.un.b.vendorUnique = 0;
609 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
610
611 /* 1 sec timeout */
612 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
613
614 spin_lock_irq(shost->host_lock);
615 ndlp->nlp_flag |= NLP_DELAY_TMO;
616 spin_unlock_irq(shost->host_lock);
617 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
618 ndlp->nlp_prev_state = ndlp->nlp_state;
619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
620 return 0;
621 }
622
623 static int
624 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
625 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
626 {
627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
628 struct lpfc_hba *phba = vport->phba;
629 struct lpfc_vport **vports;
630 int i, active_vlink_present = 0 ;
631
632 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
633 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
634 * PLOGIs during LOGO storms from a device.
635 */
636 spin_lock_irq(shost->host_lock);
637 ndlp->nlp_flag |= NLP_LOGO_ACC;
638 spin_unlock_irq(shost->host_lock);
639 if (els_cmd == ELS_CMD_PRLO)
640 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
641 else
642 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
643 if (ndlp->nlp_DID == Fabric_DID) {
644 if (vport->port_state <= LPFC_FDISC)
645 goto out;
646 lpfc_linkdown_port(vport);
647 spin_lock_irq(shost->host_lock);
648 vport->fc_flag |= FC_VPORT_LOGO_RCVD;
649 spin_unlock_irq(shost->host_lock);
650 vports = lpfc_create_vport_work_array(phba);
651 if (vports) {
652 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
653 i++) {
654 if ((!(vports[i]->fc_flag &
655 FC_VPORT_LOGO_RCVD)) &&
656 (vports[i]->port_state > LPFC_FDISC)) {
657 active_vlink_present = 1;
658 break;
659 }
660 }
661 lpfc_destroy_vport_work_array(phba, vports);
662 }
663
664 /*
665 * Don't re-instantiate if vport is marked for deletion.
666 * If we are here first then vport_delete is going to wait
667 * for discovery to complete.
668 */
669 if (!(vport->load_flag & FC_UNLOADING) &&
670 active_vlink_present) {
671 /*
672 * If there are other active VLinks present,
673 * re-instantiate the Vlink using FDISC.
674 */
675 mod_timer(&ndlp->nlp_delayfunc,
676 jiffies + msecs_to_jiffies(1000));
677 spin_lock_irq(shost->host_lock);
678 ndlp->nlp_flag |= NLP_DELAY_TMO;
679 spin_unlock_irq(shost->host_lock);
680 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
681 vport->port_state = LPFC_FDISC;
682 } else {
683 spin_lock_irq(shost->host_lock);
684 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
685 spin_unlock_irq(shost->host_lock);
686 lpfc_retry_pport_discovery(phba);
687 }
688 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
689 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
690 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
691 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
692 /* Only try to re-login if this is NOT a Fabric Node */
693 mod_timer(&ndlp->nlp_delayfunc,
694 jiffies + msecs_to_jiffies(1000 * 1));
695 spin_lock_irq(shost->host_lock);
696 ndlp->nlp_flag |= NLP_DELAY_TMO;
697 spin_unlock_irq(shost->host_lock);
698
699 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
700 }
701 out:
702 ndlp->nlp_prev_state = ndlp->nlp_state;
703 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
704
705 spin_lock_irq(shost->host_lock);
706 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
707 spin_unlock_irq(shost->host_lock);
708 /* The driver has to wait until the ACC completes before it continues
709 * processing the LOGO. The action will resume in
710 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
711 * unreg_login, the driver waits so the ACC does not get aborted.
712 */
713 return 0;
714 }
715
716 static void
717 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
718 struct lpfc_iocbq *cmdiocb)
719 {
720 struct lpfc_dmabuf *pcmd;
721 uint32_t *lp;
722 PRLI *npr;
723 struct fc_rport *rport = ndlp->rport;
724 u32 roles;
725
726 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
727 lp = (uint32_t *) pcmd->virt;
728 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
729
730 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
731 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
732 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
733 if (npr->prliType == PRLI_FCP_TYPE) {
734 if (npr->initiatorFunc)
735 ndlp->nlp_type |= NLP_FCP_INITIATOR;
736 if (npr->targetFunc) {
737 ndlp->nlp_type |= NLP_FCP_TARGET;
738 if (npr->writeXferRdyDis)
739 ndlp->nlp_flag |= NLP_FIRSTBURST;
740 }
741 if (npr->Retry)
742 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
743 }
744 if (rport) {
745 /* We need to update the rport role values */
746 roles = FC_RPORT_ROLE_UNKNOWN;
747 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
748 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
749 if (ndlp->nlp_type & NLP_FCP_TARGET)
750 roles |= FC_RPORT_ROLE_FCP_TARGET;
751
752 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
753 "rport rolechg: role:x%x did:x%x flg:x%x",
754 roles, ndlp->nlp_DID, ndlp->nlp_flag);
755
756 fc_remote_port_rolechg(rport, roles);
757 }
758 }
759
760 static uint32_t
761 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
762 {
763 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
764
765 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
766 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
767 return 0;
768 }
769
770 if (!(vport->fc_flag & FC_PT2PT)) {
771 /* Check config parameter use-adisc or FCP-2 */
772 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
773 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
774 (ndlp->nlp_type & NLP_FCP_TARGET))) {
775 spin_lock_irq(shost->host_lock);
776 ndlp->nlp_flag |= NLP_NPR_ADISC;
777 spin_unlock_irq(shost->host_lock);
778 return 1;
779 }
780 }
781 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
782 lpfc_unreg_rpi(vport, ndlp);
783 return 0;
784 }
785
786 /**
787 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
788 * @phba : Pointer to lpfc_hba structure.
789 * @vport: Pointer to lpfc_vport structure.
790 * @rpi : rpi to be release.
791 *
792 * This function will send a unreg_login mailbox command to the firmware
793 * to release a rpi.
794 **/
795 void
796 lpfc_release_rpi(struct lpfc_hba *phba,
797 struct lpfc_vport *vport,
798 uint16_t rpi)
799 {
800 LPFC_MBOXQ_t *pmb;
801 int rc;
802
803 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
804 GFP_KERNEL);
805 if (!pmb)
806 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
807 "2796 mailbox memory allocation failed \n");
808 else {
809 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
810 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
811 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
812 if (rc == MBX_NOT_FINISHED)
813 mempool_free(pmb, phba->mbox_mem_pool);
814 }
815 }
816
817 static uint32_t
818 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
819 void *arg, uint32_t evt)
820 {
821 struct lpfc_hba *phba;
822 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
823 MAILBOX_t *mb;
824 uint16_t rpi;
825
826 phba = vport->phba;
827 /* Release the RPI if reglogin completing */
828 if (!(phba->pport->load_flag & FC_UNLOADING) &&
829 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
830 (!pmb->u.mb.mbxStatus)) {
831 mb = &pmb->u.mb;
832 rpi = pmb->u.mb.un.varWords[0];
833 lpfc_release_rpi(phba, vport, rpi);
834 }
835 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
836 "0271 Illegal State Transition: node x%x "
837 "event x%x, state x%x Data: x%x x%x\n",
838 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
839 ndlp->nlp_flag);
840 return ndlp->nlp_state;
841 }
842
843 static uint32_t
844 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
845 void *arg, uint32_t evt)
846 {
847 /* This transition is only legal if we previously
848 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
849 * working on the same NPortID, do nothing for this thread
850 * to stop it.
851 */
852 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
853 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
854 "0272 Illegal State Transition: node x%x "
855 "event x%x, state x%x Data: x%x x%x\n",
856 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
857 ndlp->nlp_flag);
858 }
859 return ndlp->nlp_state;
860 }
861
862 /* Start of Discovery State Machine routines */
863
864 static uint32_t
865 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
866 void *arg, uint32_t evt)
867 {
868 struct lpfc_iocbq *cmdiocb;
869
870 cmdiocb = (struct lpfc_iocbq *) arg;
871
872 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
873 return ndlp->nlp_state;
874 }
875 return NLP_STE_FREED_NODE;
876 }
877
878 static uint32_t
879 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
880 void *arg, uint32_t evt)
881 {
882 lpfc_issue_els_logo(vport, ndlp, 0);
883 return ndlp->nlp_state;
884 }
885
886 static uint32_t
887 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
888 void *arg, uint32_t evt)
889 {
890 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
891 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
892
893 spin_lock_irq(shost->host_lock);
894 ndlp->nlp_flag |= NLP_LOGO_ACC;
895 spin_unlock_irq(shost->host_lock);
896 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
897
898 return ndlp->nlp_state;
899 }
900
901 static uint32_t
902 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
903 void *arg, uint32_t evt)
904 {
905 return NLP_STE_FREED_NODE;
906 }
907
908 static uint32_t
909 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
910 void *arg, uint32_t evt)
911 {
912 return NLP_STE_FREED_NODE;
913 }
914
915 static uint32_t
916 lpfc_device_recov_unused_node(struct lpfc_vport *vport,
917 struct lpfc_nodelist *ndlp,
918 void *arg, uint32_t evt)
919 {
920 return ndlp->nlp_state;
921 }
922
923 static uint32_t
924 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
925 void *arg, uint32_t evt)
926 {
927 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
928 struct lpfc_hba *phba = vport->phba;
929 struct lpfc_iocbq *cmdiocb = arg;
930 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
931 uint32_t *lp = (uint32_t *) pcmd->virt;
932 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
933 struct ls_rjt stat;
934 int port_cmp;
935
936 memset(&stat, 0, sizeof (struct ls_rjt));
937
938 /* For a PLOGI, we only accept if our portname is less
939 * than the remote portname.
940 */
941 phba->fc_stat.elsLogiCol++;
942 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
943 sizeof(struct lpfc_name));
944
945 if (port_cmp >= 0) {
946 /* Reject this request because the remote node will accept
947 ours */
948 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
949 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
950 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
951 NULL);
952 } else {
953 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
954 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
955 (vport->num_disc_nodes)) {
956 spin_lock_irq(shost->host_lock);
957 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
958 spin_unlock_irq(shost->host_lock);
959 /* Check if there are more PLOGIs to be sent */
960 lpfc_more_plogi(vport);
961 if (vport->num_disc_nodes == 0) {
962 spin_lock_irq(shost->host_lock);
963 vport->fc_flag &= ~FC_NDISC_ACTIVE;
964 spin_unlock_irq(shost->host_lock);
965 lpfc_can_disctmo(vport);
966 lpfc_end_rscn(vport);
967 }
968 }
969 } /* If our portname was less */
970
971 return ndlp->nlp_state;
972 }
973
974 static uint32_t
975 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
976 void *arg, uint32_t evt)
977 {
978 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
979 struct ls_rjt stat;
980
981 memset(&stat, 0, sizeof (struct ls_rjt));
982 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
983 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
984 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
985 return ndlp->nlp_state;
986 }
987
988 static uint32_t
989 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
990 void *arg, uint32_t evt)
991 {
992 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
993
994 /* software abort outstanding PLOGI */
995 lpfc_els_abort(vport->phba, ndlp);
996
997 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
998 return ndlp->nlp_state;
999 }
1000
1001 static uint32_t
1002 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1003 void *arg, uint32_t evt)
1004 {
1005 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1006 struct lpfc_hba *phba = vport->phba;
1007 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1008
1009 /* software abort outstanding PLOGI */
1010 lpfc_els_abort(phba, ndlp);
1011
1012 if (evt == NLP_EVT_RCV_LOGO) {
1013 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1014 } else {
1015 lpfc_issue_els_logo(vport, ndlp, 0);
1016 }
1017
1018 /* Put ndlp in npr state set plogi timer for 1 sec */
1019 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
1020 spin_lock_irq(shost->host_lock);
1021 ndlp->nlp_flag |= NLP_DELAY_TMO;
1022 spin_unlock_irq(shost->host_lock);
1023 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1024 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1025 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1026
1027 return ndlp->nlp_state;
1028 }
1029
1030 static uint32_t
1031 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
1032 struct lpfc_nodelist *ndlp,
1033 void *arg,
1034 uint32_t evt)
1035 {
1036 struct lpfc_hba *phba = vport->phba;
1037 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1038 struct lpfc_iocbq *cmdiocb, *rspiocb;
1039 struct lpfc_dmabuf *pcmd, *prsp, *mp;
1040 uint32_t *lp;
1041 IOCB_t *irsp;
1042 struct serv_parm *sp;
1043 LPFC_MBOXQ_t *mbox;
1044
1045 cmdiocb = (struct lpfc_iocbq *) arg;
1046 rspiocb = cmdiocb->context_un.rsp_iocb;
1047
1048 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1049 /* Recovery from PLOGI collision logic */
1050 return ndlp->nlp_state;
1051 }
1052
1053 irsp = &rspiocb->iocb;
1054
1055 if (irsp->ulpStatus)
1056 goto out;
1057
1058 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1059
1060 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1061 if (!prsp)
1062 goto out;
1063
1064 lp = (uint32_t *) prsp->virt;
1065 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
1066
1067 /* Some switches have FDMI servers returning 0 for WWN */
1068 if ((ndlp->nlp_DID != FDMI_DID) &&
1069 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1070 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
1071 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1072 "0142 PLOGI RSP: Invalid WWN.\n");
1073 goto out;
1074 }
1075 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
1076 goto out;
1077 /* PLOGI chkparm OK */
1078 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1079 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1080 ndlp->nlp_DID, ndlp->nlp_state,
1081 ndlp->nlp_flag, ndlp->nlp_rpi);
1082 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
1083 ndlp->nlp_fcp_info |= CLASS2;
1084 else
1085 ndlp->nlp_fcp_info |= CLASS3;
1086
1087 ndlp->nlp_class_sup = 0;
1088 if (sp->cls1.classValid)
1089 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1090 if (sp->cls2.classValid)
1091 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1092 if (sp->cls3.classValid)
1093 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1094 if (sp->cls4.classValid)
1095 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1096 ndlp->nlp_maxframe =
1097 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
1098
1099 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1100 if (!mbox) {
1101 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1102 "0133 PLOGI: no memory for reg_login "
1103 "Data: x%x x%x x%x x%x\n",
1104 ndlp->nlp_DID, ndlp->nlp_state,
1105 ndlp->nlp_flag, ndlp->nlp_rpi);
1106 goto out;
1107 }
1108
1109 lpfc_unreg_rpi(vport, ndlp);
1110
1111 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
1112 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
1113 switch (ndlp->nlp_DID) {
1114 case NameServer_DID:
1115 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
1116 break;
1117 case FDMI_DID:
1118 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
1119 break;
1120 default:
1121 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
1122 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1123 }
1124 mbox->context2 = lpfc_nlp_get(ndlp);
1125 mbox->vport = vport;
1126 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
1127 != MBX_NOT_FINISHED) {
1128 lpfc_nlp_set_state(vport, ndlp,
1129 NLP_STE_REG_LOGIN_ISSUE);
1130 return ndlp->nlp_state;
1131 }
1132 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1133 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1134 /* decrement node reference count to the failed mbox
1135 * command
1136 */
1137 lpfc_nlp_put(ndlp);
1138 mp = (struct lpfc_dmabuf *) mbox->context1;
1139 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1140 kfree(mp);
1141 mempool_free(mbox, phba->mbox_mem_pool);
1142
1143 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1144 "0134 PLOGI: cannot issue reg_login "
1145 "Data: x%x x%x x%x x%x\n",
1146 ndlp->nlp_DID, ndlp->nlp_state,
1147 ndlp->nlp_flag, ndlp->nlp_rpi);
1148 } else {
1149 mempool_free(mbox, phba->mbox_mem_pool);
1150
1151 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1152 "0135 PLOGI: cannot format reg_login "
1153 "Data: x%x x%x x%x x%x\n",
1154 ndlp->nlp_DID, ndlp->nlp_state,
1155 ndlp->nlp_flag, ndlp->nlp_rpi);
1156 }
1157
1158
1159 out:
1160 if (ndlp->nlp_DID == NameServer_DID) {
1161 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1162 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1163 "0261 Cannot Register NameServer login\n");
1164 }
1165
1166 /*
1167 ** In case the node reference counter does not go to zero, ensure that
1168 ** the stale state for the node is not processed.
1169 */
1170
1171 ndlp->nlp_prev_state = ndlp->nlp_state;
1172 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1173 spin_lock_irq(shost->host_lock);
1174 ndlp->nlp_flag |= NLP_DEFER_RM;
1175 spin_unlock_irq(shost->host_lock);
1176 return NLP_STE_FREED_NODE;
1177 }
1178
1179 static uint32_t
1180 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1181 void *arg, uint32_t evt)
1182 {
1183 return ndlp->nlp_state;
1184 }
1185
1186 static uint32_t
1187 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1188 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1189 {
1190 struct lpfc_hba *phba;
1191 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1192 MAILBOX_t *mb = &pmb->u.mb;
1193 uint16_t rpi;
1194
1195 phba = vport->phba;
1196 /* Release the RPI */
1197 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1198 !mb->mbxStatus) {
1199 rpi = pmb->u.mb.un.varWords[0];
1200 lpfc_release_rpi(phba, vport, rpi);
1201 }
1202 return ndlp->nlp_state;
1203 }
1204
1205 static uint32_t
1206 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1207 void *arg, uint32_t evt)
1208 {
1209 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1210
1211 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1212 spin_lock_irq(shost->host_lock);
1213 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1214 spin_unlock_irq(shost->host_lock);
1215 return ndlp->nlp_state;
1216 } else {
1217 /* software abort outstanding PLOGI */
1218 lpfc_els_abort(vport->phba, ndlp);
1219
1220 lpfc_drop_node(vport, ndlp);
1221 return NLP_STE_FREED_NODE;
1222 }
1223 }
1224
1225 static uint32_t
1226 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1227 struct lpfc_nodelist *ndlp,
1228 void *arg,
1229 uint32_t evt)
1230 {
1231 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1232 struct lpfc_hba *phba = vport->phba;
1233
1234 /* Don't do anything that will mess up processing of the
1235 * previous RSCN.
1236 */
1237 if (vport->fc_flag & FC_RSCN_DEFERRED)
1238 return ndlp->nlp_state;
1239
1240 /* software abort outstanding PLOGI */
1241 lpfc_els_abort(phba, ndlp);
1242
1243 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1244 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1245 spin_lock_irq(shost->host_lock);
1246 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1247 spin_unlock_irq(shost->host_lock);
1248
1249 return ndlp->nlp_state;
1250 }
1251
1252 static uint32_t
1253 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1254 void *arg, uint32_t evt)
1255 {
1256 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1257 struct lpfc_hba *phba = vport->phba;
1258 struct lpfc_iocbq *cmdiocb;
1259
1260 /* software abort outstanding ADISC */
1261 lpfc_els_abort(phba, ndlp);
1262
1263 cmdiocb = (struct lpfc_iocbq *) arg;
1264
1265 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1266 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1267 spin_lock_irq(shost->host_lock);
1268 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1269 spin_unlock_irq(shost->host_lock);
1270 if (vport->num_disc_nodes)
1271 lpfc_more_adisc(vport);
1272 }
1273 return ndlp->nlp_state;
1274 }
1275 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1276 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1277 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1278
1279 return ndlp->nlp_state;
1280 }
1281
1282 static uint32_t
1283 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1284 void *arg, uint32_t evt)
1285 {
1286 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1287
1288 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1289 return ndlp->nlp_state;
1290 }
1291
1292 static uint32_t
1293 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1294 void *arg, uint32_t evt)
1295 {
1296 struct lpfc_hba *phba = vport->phba;
1297 struct lpfc_iocbq *cmdiocb;
1298
1299 cmdiocb = (struct lpfc_iocbq *) arg;
1300
1301 /* software abort outstanding ADISC */
1302 lpfc_els_abort(phba, ndlp);
1303
1304 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1305 return ndlp->nlp_state;
1306 }
1307
1308 static uint32_t
1309 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1310 struct lpfc_nodelist *ndlp,
1311 void *arg, uint32_t evt)
1312 {
1313 struct lpfc_iocbq *cmdiocb;
1314
1315 cmdiocb = (struct lpfc_iocbq *) arg;
1316
1317 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1318 return ndlp->nlp_state;
1319 }
1320
1321 static uint32_t
1322 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1323 void *arg, uint32_t evt)
1324 {
1325 struct lpfc_iocbq *cmdiocb;
1326
1327 cmdiocb = (struct lpfc_iocbq *) arg;
1328
1329 /* Treat like rcv logo */
1330 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1331 return ndlp->nlp_state;
1332 }
1333
1334 static uint32_t
1335 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1336 struct lpfc_nodelist *ndlp,
1337 void *arg, uint32_t evt)
1338 {
1339 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1340 struct lpfc_hba *phba = vport->phba;
1341 struct lpfc_iocbq *cmdiocb, *rspiocb;
1342 IOCB_t *irsp;
1343 ADISC *ap;
1344 int rc;
1345
1346 cmdiocb = (struct lpfc_iocbq *) arg;
1347 rspiocb = cmdiocb->context_un.rsp_iocb;
1348
1349 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1350 irsp = &rspiocb->iocb;
1351
1352 if ((irsp->ulpStatus) ||
1353 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1354 /* 1 sec timeout */
1355 mod_timer(&ndlp->nlp_delayfunc,
1356 jiffies + msecs_to_jiffies(1000));
1357 spin_lock_irq(shost->host_lock);
1358 ndlp->nlp_flag |= NLP_DELAY_TMO;
1359 spin_unlock_irq(shost->host_lock);
1360 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1361
1362 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1363 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1364
1365 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1366 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1367 lpfc_unreg_rpi(vport, ndlp);
1368 return ndlp->nlp_state;
1369 }
1370
1371 if (phba->sli_rev == LPFC_SLI_REV4) {
1372 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
1373 if (rc) {
1374 /* Stay in state and retry. */
1375 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1376 return ndlp->nlp_state;
1377 }
1378 }
1379
1380 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1381 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1382 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1383 } else {
1384 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1385 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1386 }
1387
1388 return ndlp->nlp_state;
1389 }
1390
1391 static uint32_t
1392 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1393 void *arg, uint32_t evt)
1394 {
1395 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1396
1397 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1398 spin_lock_irq(shost->host_lock);
1399 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1400 spin_unlock_irq(shost->host_lock);
1401 return ndlp->nlp_state;
1402 } else {
1403 /* software abort outstanding ADISC */
1404 lpfc_els_abort(vport->phba, ndlp);
1405
1406 lpfc_drop_node(vport, ndlp);
1407 return NLP_STE_FREED_NODE;
1408 }
1409 }
1410
1411 static uint32_t
1412 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1413 struct lpfc_nodelist *ndlp,
1414 void *arg,
1415 uint32_t evt)
1416 {
1417 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1418 struct lpfc_hba *phba = vport->phba;
1419
1420 /* Don't do anything that will mess up processing of the
1421 * previous RSCN.
1422 */
1423 if (vport->fc_flag & FC_RSCN_DEFERRED)
1424 return ndlp->nlp_state;
1425
1426 /* software abort outstanding ADISC */
1427 lpfc_els_abort(phba, ndlp);
1428
1429 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1430 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1431 spin_lock_irq(shost->host_lock);
1432 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1433 spin_unlock_irq(shost->host_lock);
1434 lpfc_disc_set_adisc(vport, ndlp);
1435 return ndlp->nlp_state;
1436 }
1437
1438 static uint32_t
1439 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1440 struct lpfc_nodelist *ndlp,
1441 void *arg,
1442 uint32_t evt)
1443 {
1444 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1445
1446 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1447 return ndlp->nlp_state;
1448 }
1449
1450 static uint32_t
1451 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1452 struct lpfc_nodelist *ndlp,
1453 void *arg,
1454 uint32_t evt)
1455 {
1456 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1457
1458 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1459 return ndlp->nlp_state;
1460 }
1461
1462 static uint32_t
1463 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1464 struct lpfc_nodelist *ndlp,
1465 void *arg,
1466 uint32_t evt)
1467 {
1468 struct lpfc_hba *phba = vport->phba;
1469 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1470 LPFC_MBOXQ_t *mb;
1471 LPFC_MBOXQ_t *nextmb;
1472 struct lpfc_dmabuf *mp;
1473
1474 cmdiocb = (struct lpfc_iocbq *) arg;
1475
1476 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1477 if ((mb = phba->sli.mbox_active)) {
1478 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1479 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1480 lpfc_nlp_put(ndlp);
1481 mb->context2 = NULL;
1482 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1483 }
1484 }
1485
1486 spin_lock_irq(&phba->hbalock);
1487 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1488 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1489 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1490 mp = (struct lpfc_dmabuf *) (mb->context1);
1491 if (mp) {
1492 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1493 kfree(mp);
1494 }
1495 lpfc_nlp_put(ndlp);
1496 list_del(&mb->list);
1497 phba->sli.mboxq_cnt--;
1498 mempool_free(mb, phba->mbox_mem_pool);
1499 }
1500 }
1501 spin_unlock_irq(&phba->hbalock);
1502
1503 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1504 return ndlp->nlp_state;
1505 }
1506
1507 static uint32_t
1508 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1509 struct lpfc_nodelist *ndlp,
1510 void *arg,
1511 uint32_t evt)
1512 {
1513 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1514
1515 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1516 return ndlp->nlp_state;
1517 }
1518
1519 static uint32_t
1520 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1521 struct lpfc_nodelist *ndlp,
1522 void *arg,
1523 uint32_t evt)
1524 {
1525 struct lpfc_iocbq *cmdiocb;
1526
1527 cmdiocb = (struct lpfc_iocbq *) arg;
1528 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1529 return ndlp->nlp_state;
1530 }
1531
1532 static uint32_t
1533 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1534 struct lpfc_nodelist *ndlp,
1535 void *arg,
1536 uint32_t evt)
1537 {
1538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1539 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1540 MAILBOX_t *mb = &pmb->u.mb;
1541 uint32_t did = mb->un.varWords[1];
1542
1543 if (mb->mbxStatus) {
1544 /* RegLogin failed */
1545 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1546 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1547 "x%x\n",
1548 did, mb->mbxStatus, vport->port_state,
1549 mb->un.varRegLogin.vpi,
1550 mb->un.varRegLogin.rpi);
1551 /*
1552 * If RegLogin failed due to lack of HBA resources do not
1553 * retry discovery.
1554 */
1555 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1556 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1557 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1558 return ndlp->nlp_state;
1559 }
1560
1561 /* Put ndlp in npr state set plogi timer for 1 sec */
1562 mod_timer(&ndlp->nlp_delayfunc,
1563 jiffies + msecs_to_jiffies(1000 * 1));
1564 spin_lock_irq(shost->host_lock);
1565 ndlp->nlp_flag |= NLP_DELAY_TMO;
1566 spin_unlock_irq(shost->host_lock);
1567 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1568
1569 lpfc_issue_els_logo(vport, ndlp, 0);
1570 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1571 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1572 return ndlp->nlp_state;
1573 }
1574
1575 /* SLI4 ports have preallocated logical rpis. */
1576 if (vport->phba->sli_rev < LPFC_SLI_REV4)
1577 ndlp->nlp_rpi = mb->un.varWords[0];
1578
1579 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1580
1581 /* Only if we are not a fabric nport do we issue PRLI */
1582 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1583 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1584 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1585 lpfc_issue_els_prli(vport, ndlp, 0);
1586 } else {
1587 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1589 }
1590 return ndlp->nlp_state;
1591 }
1592
1593 static uint32_t
1594 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1595 struct lpfc_nodelist *ndlp,
1596 void *arg,
1597 uint32_t evt)
1598 {
1599 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1600
1601 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1602 spin_lock_irq(shost->host_lock);
1603 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1604 spin_unlock_irq(shost->host_lock);
1605 return ndlp->nlp_state;
1606 } else {
1607 lpfc_drop_node(vport, ndlp);
1608 return NLP_STE_FREED_NODE;
1609 }
1610 }
1611
1612 static uint32_t
1613 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1614 struct lpfc_nodelist *ndlp,
1615 void *arg,
1616 uint32_t evt)
1617 {
1618 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1619
1620 /* Don't do anything that will mess up processing of the
1621 * previous RSCN.
1622 */
1623 if (vport->fc_flag & FC_RSCN_DEFERRED)
1624 return ndlp->nlp_state;
1625
1626 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1627 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1628 spin_lock_irq(shost->host_lock);
1629 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
1630 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1631 spin_unlock_irq(shost->host_lock);
1632 lpfc_disc_set_adisc(vport, ndlp);
1633 return ndlp->nlp_state;
1634 }
1635
1636 static uint32_t
1637 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1638 void *arg, uint32_t evt)
1639 {
1640 struct lpfc_iocbq *cmdiocb;
1641
1642 cmdiocb = (struct lpfc_iocbq *) arg;
1643
1644 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1645 return ndlp->nlp_state;
1646 }
1647
1648 static uint32_t
1649 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1650 void *arg, uint32_t evt)
1651 {
1652 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1653
1654 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1655 return ndlp->nlp_state;
1656 }
1657
1658 static uint32_t
1659 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1660 void *arg, uint32_t evt)
1661 {
1662 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1663
1664 /* Software abort outstanding PRLI before sending acc */
1665 lpfc_els_abort(vport->phba, ndlp);
1666
1667 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1668 return ndlp->nlp_state;
1669 }
1670
1671 static uint32_t
1672 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1673 void *arg, uint32_t evt)
1674 {
1675 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1676
1677 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1678 return ndlp->nlp_state;
1679 }
1680
1681 /* This routine is envoked when we rcv a PRLO request from a nport
1682 * we are logged into. We should send back a PRLO rsp setting the
1683 * appropriate bits.
1684 * NEXT STATE = PRLI_ISSUE
1685 */
1686 static uint32_t
1687 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1688 void *arg, uint32_t evt)
1689 {
1690 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1691
1692 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1693 return ndlp->nlp_state;
1694 }
1695
1696 static uint32_t
1697 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1698 void *arg, uint32_t evt)
1699 {
1700 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1701 struct lpfc_iocbq *cmdiocb, *rspiocb;
1702 struct lpfc_hba *phba = vport->phba;
1703 IOCB_t *irsp;
1704 PRLI *npr;
1705
1706 cmdiocb = (struct lpfc_iocbq *) arg;
1707 rspiocb = cmdiocb->context_un.rsp_iocb;
1708 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1709
1710 irsp = &rspiocb->iocb;
1711 if (irsp->ulpStatus) {
1712 if ((vport->port_type == LPFC_NPIV_PORT) &&
1713 vport->cfg_restrict_login) {
1714 goto out;
1715 }
1716 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1717 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1718 return ndlp->nlp_state;
1719 }
1720
1721 /* Check out PRLI rsp */
1722 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1723 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1724 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
1725 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1726 (npr->prliType == PRLI_FCP_TYPE)) {
1727 if (npr->initiatorFunc)
1728 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1729 if (npr->targetFunc) {
1730 ndlp->nlp_type |= NLP_FCP_TARGET;
1731 if (npr->writeXferRdyDis)
1732 ndlp->nlp_flag |= NLP_FIRSTBURST;
1733 }
1734 if (npr->Retry)
1735 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1736 }
1737 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1738 (vport->port_type == LPFC_NPIV_PORT) &&
1739 vport->cfg_restrict_login) {
1740 out:
1741 spin_lock_irq(shost->host_lock);
1742 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1743 spin_unlock_irq(shost->host_lock);
1744 lpfc_issue_els_logo(vport, ndlp, 0);
1745
1746 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1748 return ndlp->nlp_state;
1749 }
1750
1751 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1752 if (ndlp->nlp_type & NLP_FCP_TARGET)
1753 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1754 else
1755 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1756 return ndlp->nlp_state;
1757 }
1758
1759 /*! lpfc_device_rm_prli_issue
1760 *
1761 * \pre
1762 * \post
1763 * \param phba
1764 * \param ndlp
1765 * \param arg
1766 * \param evt
1767 * \return uint32_t
1768 *
1769 * \b Description:
1770 * This routine is envoked when we a request to remove a nport we are in the
1771 * process of PRLIing. We should software abort outstanding prli, unreg
1772 * login, send a logout. We will change node state to UNUSED_NODE, put it
1773 * on plogi list so it can be freed when LOGO completes.
1774 *
1775 */
1776
1777 static uint32_t
1778 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1779 void *arg, uint32_t evt)
1780 {
1781 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1782
1783 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1784 spin_lock_irq(shost->host_lock);
1785 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1786 spin_unlock_irq(shost->host_lock);
1787 return ndlp->nlp_state;
1788 } else {
1789 /* software abort outstanding PLOGI */
1790 lpfc_els_abort(vport->phba, ndlp);
1791
1792 lpfc_drop_node(vport, ndlp);
1793 return NLP_STE_FREED_NODE;
1794 }
1795 }
1796
1797
1798 /*! lpfc_device_recov_prli_issue
1799 *
1800 * \pre
1801 * \post
1802 * \param phba
1803 * \param ndlp
1804 * \param arg
1805 * \param evt
1806 * \return uint32_t
1807 *
1808 * \b Description:
1809 * The routine is envoked when the state of a device is unknown, like
1810 * during a link down. We should remove the nodelist entry from the
1811 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1812 * outstanding PRLI command, then free the node entry.
1813 */
1814 static uint32_t
1815 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1816 struct lpfc_nodelist *ndlp,
1817 void *arg,
1818 uint32_t evt)
1819 {
1820 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1821 struct lpfc_hba *phba = vport->phba;
1822
1823 /* Don't do anything that will mess up processing of the
1824 * previous RSCN.
1825 */
1826 if (vport->fc_flag & FC_RSCN_DEFERRED)
1827 return ndlp->nlp_state;
1828
1829 /* software abort outstanding PRLI */
1830 lpfc_els_abort(phba, ndlp);
1831
1832 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1833 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1834 spin_lock_irq(shost->host_lock);
1835 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1836 spin_unlock_irq(shost->host_lock);
1837 lpfc_disc_set_adisc(vport, ndlp);
1838 return ndlp->nlp_state;
1839 }
1840
1841 static uint32_t
1842 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1843 void *arg, uint32_t evt)
1844 {
1845 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1846 struct ls_rjt stat;
1847
1848 memset(&stat, 0, sizeof(struct ls_rjt));
1849 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1850 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1851 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1852 return ndlp->nlp_state;
1853 }
1854
1855 static uint32_t
1856 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1857 void *arg, uint32_t evt)
1858 {
1859 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1860 struct ls_rjt stat;
1861
1862 memset(&stat, 0, sizeof(struct ls_rjt));
1863 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1864 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1865 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1866 return ndlp->nlp_state;
1867 }
1868
1869 static uint32_t
1870 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1871 void *arg, uint32_t evt)
1872 {
1873 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1874 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1875
1876 spin_lock_irq(shost->host_lock);
1877 ndlp->nlp_flag |= NLP_LOGO_ACC;
1878 spin_unlock_irq(shost->host_lock);
1879 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1880 return ndlp->nlp_state;
1881 }
1882
1883 static uint32_t
1884 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1885 void *arg, uint32_t evt)
1886 {
1887 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1888 struct ls_rjt stat;
1889
1890 memset(&stat, 0, sizeof(struct ls_rjt));
1891 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1892 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1893 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1894 return ndlp->nlp_state;
1895 }
1896
1897 static uint32_t
1898 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1899 void *arg, uint32_t evt)
1900 {
1901 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1902 struct ls_rjt stat;
1903
1904 memset(&stat, 0, sizeof(struct ls_rjt));
1905 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1906 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1907 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1908 return ndlp->nlp_state;
1909 }
1910
1911 static uint32_t
1912 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1913 void *arg, uint32_t evt)
1914 {
1915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1916
1917 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
1918 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1919 spin_lock_irq(shost->host_lock);
1920 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1921 spin_unlock_irq(shost->host_lock);
1922 lpfc_disc_set_adisc(vport, ndlp);
1923 return ndlp->nlp_state;
1924 }
1925
1926 static uint32_t
1927 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1928 void *arg, uint32_t evt)
1929 {
1930 /*
1931 * Take no action. If a LOGO is outstanding, then possibly DevLoss has
1932 * timed out and is calling for Device Remove. In this case, the LOGO
1933 * must be allowed to complete in state LOGO_ISSUE so that the rpi
1934 * and other NLP flags are correctly cleaned up.
1935 */
1936 return ndlp->nlp_state;
1937 }
1938
1939 static uint32_t
1940 lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
1941 struct lpfc_nodelist *ndlp,
1942 void *arg, uint32_t evt)
1943 {
1944 /*
1945 * Device Recovery events have no meaning for a node with a LOGO
1946 * outstanding. The LOGO has to complete first and handle the
1947 * node from that point.
1948 */
1949 return ndlp->nlp_state;
1950 }
1951
1952 static uint32_t
1953 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1954 void *arg, uint32_t evt)
1955 {
1956 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1957
1958 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1959 return ndlp->nlp_state;
1960 }
1961
1962 static uint32_t
1963 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1964 void *arg, uint32_t evt)
1965 {
1966 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1967
1968 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1969 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1970 return ndlp->nlp_state;
1971 }
1972
1973 static uint32_t
1974 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1975 void *arg, uint32_t evt)
1976 {
1977 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1978
1979 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1980 return ndlp->nlp_state;
1981 }
1982
1983 static uint32_t
1984 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1985 void *arg, uint32_t evt)
1986 {
1987 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1988
1989 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1990 return ndlp->nlp_state;
1991 }
1992
1993 static uint32_t
1994 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1995 void *arg, uint32_t evt)
1996 {
1997 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1998
1999 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
2000 return ndlp->nlp_state;
2001 }
2002
2003 static uint32_t
2004 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
2005 struct lpfc_nodelist *ndlp,
2006 void *arg,
2007 uint32_t evt)
2008 {
2009 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2010
2011 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2012 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2013 spin_lock_irq(shost->host_lock);
2014 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2015 spin_unlock_irq(shost->host_lock);
2016 lpfc_disc_set_adisc(vport, ndlp);
2017
2018 return ndlp->nlp_state;
2019 }
2020
2021 static uint32_t
2022 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2023 void *arg, uint32_t evt)
2024 {
2025 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2026
2027 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2028 return ndlp->nlp_state;
2029 }
2030
2031 static uint32_t
2032 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2033 void *arg, uint32_t evt)
2034 {
2035 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2036
2037 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2038 return ndlp->nlp_state;
2039 }
2040
2041 static uint32_t
2042 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2043 void *arg, uint32_t evt)
2044 {
2045 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2046
2047 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2048 return ndlp->nlp_state;
2049 }
2050
2051 static uint32_t
2052 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2053 struct lpfc_nodelist *ndlp,
2054 void *arg, uint32_t evt)
2055 {
2056 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2057
2058 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2059 return ndlp->nlp_state;
2060 }
2061
2062 static uint32_t
2063 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2064 void *arg, uint32_t evt)
2065 {
2066 struct lpfc_hba *phba = vport->phba;
2067 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2068
2069 /* flush the target */
2070 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
2071 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
2072
2073 /* Treat like rcv logo */
2074 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
2075 return ndlp->nlp_state;
2076 }
2077
2078 static uint32_t
2079 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2080 struct lpfc_nodelist *ndlp,
2081 void *arg,
2082 uint32_t evt)
2083 {
2084 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2085
2086 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2087 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2088 spin_lock_irq(shost->host_lock);
2089 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2090 spin_unlock_irq(shost->host_lock);
2091 lpfc_disc_set_adisc(vport, ndlp);
2092 return ndlp->nlp_state;
2093 }
2094
2095 static uint32_t
2096 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2097 void *arg, uint32_t evt)
2098 {
2099 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2100 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2101
2102 /* Ignore PLOGI if we have an outstanding LOGO */
2103 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
2104 return ndlp->nlp_state;
2105 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
2106 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2107 spin_lock_irq(shost->host_lock);
2108 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2109 spin_unlock_irq(shost->host_lock);
2110 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2111 /* send PLOGI immediately, move to PLOGI issue state */
2112 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2113 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2114 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2115 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2116 }
2117 }
2118 return ndlp->nlp_state;
2119 }
2120
2121 static uint32_t
2122 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2123 void *arg, uint32_t evt)
2124 {
2125 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2126 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2127 struct ls_rjt stat;
2128
2129 memset(&stat, 0, sizeof (struct ls_rjt));
2130 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2131 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2132 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2133
2134 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2135 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2136 spin_lock_irq(shost->host_lock);
2137 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2138 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2139 spin_unlock_irq(shost->host_lock);
2140 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2141 lpfc_issue_els_adisc(vport, ndlp, 0);
2142 } else {
2143 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2144 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2145 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2146 }
2147 }
2148 return ndlp->nlp_state;
2149 }
2150
2151 static uint32_t
2152 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2153 void *arg, uint32_t evt)
2154 {
2155 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2156
2157 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2158 return ndlp->nlp_state;
2159 }
2160
2161 static uint32_t
2162 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2163 void *arg, uint32_t evt)
2164 {
2165 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2166
2167 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2168 /*
2169 * Do not start discovery if discovery is about to start
2170 * or discovery in progress for this node. Starting discovery
2171 * here will affect the counting of discovery threads.
2172 */
2173 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
2174 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2175 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2176 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2177 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2178 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2179 lpfc_issue_els_adisc(vport, ndlp, 0);
2180 } else {
2181 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2182 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2183 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2184 }
2185 }
2186 return ndlp->nlp_state;
2187 }
2188
2189 static uint32_t
2190 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2191 void *arg, uint32_t evt)
2192 {
2193 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2194 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2195
2196 spin_lock_irq(shost->host_lock);
2197 ndlp->nlp_flag |= NLP_LOGO_ACC;
2198 spin_unlock_irq(shost->host_lock);
2199
2200 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2201
2202 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
2203 mod_timer(&ndlp->nlp_delayfunc,
2204 jiffies + msecs_to_jiffies(1000 * 1));
2205 spin_lock_irq(shost->host_lock);
2206 ndlp->nlp_flag |= NLP_DELAY_TMO;
2207 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2208 spin_unlock_irq(shost->host_lock);
2209 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
2210 } else {
2211 spin_lock_irq(shost->host_lock);
2212 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2213 spin_unlock_irq(shost->host_lock);
2214 }
2215 return ndlp->nlp_state;
2216 }
2217
2218 static uint32_t
2219 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2220 void *arg, uint32_t evt)
2221 {
2222 struct lpfc_iocbq *cmdiocb, *rspiocb;
2223 IOCB_t *irsp;
2224 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2225
2226 cmdiocb = (struct lpfc_iocbq *) arg;
2227 rspiocb = cmdiocb->context_un.rsp_iocb;
2228
2229 irsp = &rspiocb->iocb;
2230 if (irsp->ulpStatus) {
2231 spin_lock_irq(shost->host_lock);
2232 ndlp->nlp_flag |= NLP_DEFER_RM;
2233 spin_unlock_irq(shost->host_lock);
2234 return NLP_STE_FREED_NODE;
2235 }
2236 return ndlp->nlp_state;
2237 }
2238
2239 static uint32_t
2240 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2241 void *arg, uint32_t evt)
2242 {
2243 struct lpfc_iocbq *cmdiocb, *rspiocb;
2244 IOCB_t *irsp;
2245
2246 cmdiocb = (struct lpfc_iocbq *) arg;
2247 rspiocb = cmdiocb->context_un.rsp_iocb;
2248
2249 irsp = &rspiocb->iocb;
2250 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2251 lpfc_drop_node(vport, ndlp);
2252 return NLP_STE_FREED_NODE;
2253 }
2254 return ndlp->nlp_state;
2255 }
2256
2257 static uint32_t
2258 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2259 void *arg, uint32_t evt)
2260 {
2261 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2262
2263 /* For the fabric port just clear the fc flags. */
2264 if (ndlp->nlp_DID == Fabric_DID) {
2265 spin_lock_irq(shost->host_lock);
2266 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2267 spin_unlock_irq(shost->host_lock);
2268 }
2269 lpfc_unreg_rpi(vport, ndlp);
2270 return ndlp->nlp_state;
2271 }
2272
2273 static uint32_t
2274 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2275 void *arg, uint32_t evt)
2276 {
2277 struct lpfc_iocbq *cmdiocb, *rspiocb;
2278 IOCB_t *irsp;
2279
2280 cmdiocb = (struct lpfc_iocbq *) arg;
2281 rspiocb = cmdiocb->context_un.rsp_iocb;
2282
2283 irsp = &rspiocb->iocb;
2284 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2285 lpfc_drop_node(vport, ndlp);
2286 return NLP_STE_FREED_NODE;
2287 }
2288 return ndlp->nlp_state;
2289 }
2290
2291 static uint32_t
2292 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2293 struct lpfc_nodelist *ndlp,
2294 void *arg, uint32_t evt)
2295 {
2296 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
2297 MAILBOX_t *mb = &pmb->u.mb;
2298
2299 if (!mb->mbxStatus) {
2300 /* SLI4 ports have preallocated logical rpis. */
2301 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2302 ndlp->nlp_rpi = mb->un.varWords[0];
2303 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
2304 } else {
2305 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2306 lpfc_drop_node(vport, ndlp);
2307 return NLP_STE_FREED_NODE;
2308 }
2309 }
2310 return ndlp->nlp_state;
2311 }
2312
2313 static uint32_t
2314 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2315 void *arg, uint32_t evt)
2316 {
2317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2318
2319 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2320 spin_lock_irq(shost->host_lock);
2321 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2322 spin_unlock_irq(shost->host_lock);
2323 return ndlp->nlp_state;
2324 }
2325 lpfc_drop_node(vport, ndlp);
2326 return NLP_STE_FREED_NODE;
2327 }
2328
2329 static uint32_t
2330 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2331 void *arg, uint32_t evt)
2332 {
2333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2334
2335 /* Don't do anything that will mess up processing of the
2336 * previous RSCN.
2337 */
2338 if (vport->fc_flag & FC_RSCN_DEFERRED)
2339 return ndlp->nlp_state;
2340
2341 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2342 spin_lock_irq(shost->host_lock);
2343 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2344 spin_unlock_irq(shost->host_lock);
2345 return ndlp->nlp_state;
2346 }
2347
2348
2349 /* This next section defines the NPort Discovery State Machine */
2350
2351 /* There are 4 different double linked lists nodelist entries can reside on.
2352 * The plogi list and adisc list are used when Link Up discovery or RSCN
2353 * processing is needed. Each list holds the nodes that we will send PLOGI
2354 * or ADISC on. These lists will keep track of what nodes will be effected
2355 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2356 * The unmapped_list will contain all nodes that we have successfully logged
2357 * into at the Fibre Channel level. The mapped_list will contain all nodes
2358 * that are mapped FCP targets.
2359 */
2360 /*
2361 * The bind list is a list of undiscovered (potentially non-existent) nodes
2362 * that we have saved binding information on. This information is used when
2363 * nodes transition from the unmapped to the mapped list.
2364 */
2365 /* For UNUSED_NODE state, the node has just been allocated .
2366 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2367 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2368 * and put on the unmapped list. For ADISC processing, the node is taken off
2369 * the ADISC list and placed on either the mapped or unmapped list (depending
2370 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2371 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2372 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2373 * node, the node is taken off the unmapped list. The binding list is checked
2374 * for a valid binding, or a binding is automatically assigned. If binding
2375 * assignment is unsuccessful, the node is left on the unmapped list. If
2376 * binding assignment is successful, the associated binding list entry (if
2377 * any) is removed, and the node is placed on the mapped list.
2378 */
2379 /*
2380 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
2381 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
2382 * expire, all effected nodes will receive a DEVICE_RM event.
2383 */
2384 /*
2385 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2386 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2387 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2388 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2389 * we will first process the ADISC list. 32 entries are processed initially and
2390 * ADISC is initited for each one. Completions / Events for each node are
2391 * funnelled thru the state machine. As each node finishes ADISC processing, it
2392 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2393 * waiting, and the ADISC list count is identically 0, then we are done. For
2394 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2395 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2396 * list. 32 entries are processed initially and PLOGI is initited for each one.
2397 * Completions / Events for each node are funnelled thru the state machine. As
2398 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2399 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2400 * indentically 0, then we are done. We have now completed discovery / RSCN
2401 * handling. Upon completion, ALL nodes should be on either the mapped or
2402 * unmapped lists.
2403 */
2404
2405 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2406 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
2407 /* Action routine Event Current State */
2408 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2409 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2410 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2411 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2412 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2413 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2414 lpfc_disc_illegal, /* CMPL_PLOGI */
2415 lpfc_disc_illegal, /* CMPL_PRLI */
2416 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2417 lpfc_disc_illegal, /* CMPL_ADISC */
2418 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2419 lpfc_device_rm_unused_node, /* DEVICE_RM */
2420 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
2421
2422 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2423 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2424 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2425 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2426 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2427 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2428 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2429 lpfc_disc_illegal, /* CMPL_PRLI */
2430 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2431 lpfc_disc_illegal, /* CMPL_ADISC */
2432 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2433 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2434 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2435
2436 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2437 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2438 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2439 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2440 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2441 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2442 lpfc_disc_illegal, /* CMPL_PLOGI */
2443 lpfc_disc_illegal, /* CMPL_PRLI */
2444 lpfc_disc_illegal, /* CMPL_LOGO */
2445 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2446 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2447 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2448 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2449
2450 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2451 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2452 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2453 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2454 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2455 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
2456 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2457 lpfc_disc_illegal, /* CMPL_PRLI */
2458 lpfc_disc_illegal, /* CMPL_LOGO */
2459 lpfc_disc_illegal, /* CMPL_ADISC */
2460 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2461 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2462 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2463
2464 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2465 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2466 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2467 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2468 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2469 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
2470 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2471 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2472 lpfc_disc_illegal, /* CMPL_LOGO */
2473 lpfc_disc_illegal, /* CMPL_ADISC */
2474 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2475 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2476 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2477
2478 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
2479 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
2480 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
2481 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
2482 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
2483 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
2484 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2485 lpfc_disc_illegal, /* CMPL_PRLI */
2486 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
2487 lpfc_disc_illegal, /* CMPL_ADISC */
2488 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2489 lpfc_device_rm_logo_issue, /* DEVICE_RM */
2490 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
2491
2492 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2493 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2494 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2495 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2496 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2497 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2498 lpfc_disc_illegal, /* CMPL_PLOGI */
2499 lpfc_disc_illegal, /* CMPL_PRLI */
2500 lpfc_disc_illegal, /* CMPL_LOGO */
2501 lpfc_disc_illegal, /* CMPL_ADISC */
2502 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2503 lpfc_disc_illegal, /* DEVICE_RM */
2504 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2505
2506 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2507 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2508 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2509 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2510 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2511 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2512 lpfc_disc_illegal, /* CMPL_PLOGI */
2513 lpfc_disc_illegal, /* CMPL_PRLI */
2514 lpfc_disc_illegal, /* CMPL_LOGO */
2515 lpfc_disc_illegal, /* CMPL_ADISC */
2516 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2517 lpfc_disc_illegal, /* DEVICE_RM */
2518 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2519
2520 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2521 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2522 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2523 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2524 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2525 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2526 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2527 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2528 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2529 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2530 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2531 lpfc_device_rm_npr_node, /* DEVICE_RM */
2532 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2533 };
2534
2535 int
2536 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2537 void *arg, uint32_t evt)
2538 {
2539 uint32_t cur_state, rc;
2540 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2541 uint32_t);
2542 uint32_t got_ndlp = 0;
2543
2544 if (lpfc_nlp_get(ndlp))
2545 got_ndlp = 1;
2546
2547 cur_state = ndlp->nlp_state;
2548
2549 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2550 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2551 "0211 DSM in event x%x on NPort x%x in "
2552 "state %d Data: x%x\n",
2553 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2554
2555 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2556 "DSM in: evt:%d ste:%d did:x%x",
2557 evt, cur_state, ndlp->nlp_DID);
2558
2559 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2560 rc = (func) (vport, ndlp, arg, evt);
2561
2562 /* DSM out state <rc> on NPort <nlp_DID> */
2563 if (got_ndlp) {
2564 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2565 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2566 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2567
2568 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2569 "DSM out: ste:%d did:x%x flg:x%x",
2570 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2571 /* Decrement the ndlp reference count held for this function */
2572 lpfc_nlp_put(ndlp);
2573 } else {
2574 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2575 "0213 DSM out state %d on NPort free\n", rc);
2576
2577 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2578 "DSM out: ste:%d did:x%x flg:x%x",
2579 rc, 0, 0);
2580 }
2581
2582 return rc;
2583 }
Linux kernel - Deliverables
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