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udf: improve error management in udf_CS0toUTF8()
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
blob4cb9882af15723aca8cbb34d611a722400c40935
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 if (active_vlink_present) {
665 /*
666 * If there are other active VLinks present,
667 * re-instantiate the Vlink using FDISC.
668 */
669 mod_timer(&ndlp->nlp_delayfunc,
670 jiffies + msecs_to_jiffies(1000));
671 spin_lock_irq(shost->host_lock);
672 ndlp->nlp_flag |= NLP_DELAY_TMO;
673 spin_unlock_irq(shost->host_lock);
674 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
675 vport->port_state = LPFC_FDISC;
676 } else {
677 spin_lock_irq(shost->host_lock);
678 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
679 spin_unlock_irq(shost->host_lock);
680 lpfc_retry_pport_discovery(phba);
681 }
682 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
683 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
684 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
685 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
686 /* Only try to re-login if this is NOT a Fabric Node */
687 mod_timer(&ndlp->nlp_delayfunc,
688 jiffies + msecs_to_jiffies(1000 * 1));
689 spin_lock_irq(shost->host_lock);
690 ndlp->nlp_flag |= NLP_DELAY_TMO;
691 spin_unlock_irq(shost->host_lock);
692
693 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
694 }
695 out:
696 ndlp->nlp_prev_state = ndlp->nlp_state;
697 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
698
699 spin_lock_irq(shost->host_lock);
700 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
701 spin_unlock_irq(shost->host_lock);
702 /* The driver has to wait until the ACC completes before it continues
703 * processing the LOGO. The action will resume in
704 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
705 * unreg_login, the driver waits so the ACC does not get aborted.
706 */
707 return 0;
708 }
709
710 static void
711 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
712 struct lpfc_iocbq *cmdiocb)
713 {
714 struct lpfc_dmabuf *pcmd;
715 uint32_t *lp;
716 PRLI *npr;
717 struct fc_rport *rport = ndlp->rport;
718 u32 roles;
719
720 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
721 lp = (uint32_t *) pcmd->virt;
722 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
723
724 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
725 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
726 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
727 if (npr->prliType == PRLI_FCP_TYPE) {
728 if (npr->initiatorFunc)
729 ndlp->nlp_type |= NLP_FCP_INITIATOR;
730 if (npr->targetFunc) {
731 ndlp->nlp_type |= NLP_FCP_TARGET;
732 if (npr->writeXferRdyDis)
733 ndlp->nlp_flag |= NLP_FIRSTBURST;
734 }
735 if (npr->Retry)
736 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
737 }
738 if (rport) {
739 /* We need to update the rport role values */
740 roles = FC_RPORT_ROLE_UNKNOWN;
741 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
742 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
743 if (ndlp->nlp_type & NLP_FCP_TARGET)
744 roles |= FC_RPORT_ROLE_FCP_TARGET;
745
746 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
747 "rport rolechg: role:x%x did:x%x flg:x%x",
748 roles, ndlp->nlp_DID, ndlp->nlp_flag);
749
750 fc_remote_port_rolechg(rport, roles);
751 }
752 }
753
754 static uint32_t
755 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
756 {
757 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
758
759 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
760 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
761 return 0;
762 }
763
764 if (!(vport->fc_flag & FC_PT2PT)) {
765 /* Check config parameter use-adisc or FCP-2 */
766 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
767 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
768 (ndlp->nlp_type & NLP_FCP_TARGET))) {
769 spin_lock_irq(shost->host_lock);
770 ndlp->nlp_flag |= NLP_NPR_ADISC;
771 spin_unlock_irq(shost->host_lock);
772 return 1;
773 }
774 }
775 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
776 lpfc_unreg_rpi(vport, ndlp);
777 return 0;
778 }
779
780 /**
781 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
782 * @phba : Pointer to lpfc_hba structure.
783 * @vport: Pointer to lpfc_vport structure.
784 * @rpi : rpi to be release.
785 *
786 * This function will send a unreg_login mailbox command to the firmware
787 * to release a rpi.
788 **/
789 void
790 lpfc_release_rpi(struct lpfc_hba *phba,
791 struct lpfc_vport *vport,
792 uint16_t rpi)
793 {
794 LPFC_MBOXQ_t *pmb;
795 int rc;
796
797 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
798 GFP_KERNEL);
799 if (!pmb)
800 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
801 "2796 mailbox memory allocation failed \n");
802 else {
803 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
804 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
805 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
806 if (rc == MBX_NOT_FINISHED)
807 mempool_free(pmb, phba->mbox_mem_pool);
808 }
809 }
810
811 static uint32_t
812 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
813 void *arg, uint32_t evt)
814 {
815 struct lpfc_hba *phba;
816 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
817 MAILBOX_t *mb;
818 uint16_t rpi;
819
820 phba = vport->phba;
821 /* Release the RPI if reglogin completing */
822 if (!(phba->pport->load_flag & FC_UNLOADING) &&
823 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
824 (!pmb->u.mb.mbxStatus)) {
825 mb = &pmb->u.mb;
826 rpi = pmb->u.mb.un.varWords[0];
827 lpfc_release_rpi(phba, vport, rpi);
828 }
829 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
830 "0271 Illegal State Transition: node x%x "
831 "event x%x, state x%x Data: x%x x%x\n",
832 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
833 ndlp->nlp_flag);
834 return ndlp->nlp_state;
835 }
836
837 static uint32_t
838 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
839 void *arg, uint32_t evt)
840 {
841 /* This transition is only legal if we previously
842 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
843 * working on the same NPortID, do nothing for this thread
844 * to stop it.
845 */
846 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
847 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
848 "0272 Illegal State Transition: node x%x "
849 "event x%x, state x%x Data: x%x x%x\n",
850 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
851 ndlp->nlp_flag);
852 }
853 return ndlp->nlp_state;
854 }
855
856 /* Start of Discovery State Machine routines */
857
858 static uint32_t
859 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
860 void *arg, uint32_t evt)
861 {
862 struct lpfc_iocbq *cmdiocb;
863
864 cmdiocb = (struct lpfc_iocbq *) arg;
865
866 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
867 return ndlp->nlp_state;
868 }
869 return NLP_STE_FREED_NODE;
870 }
871
872 static uint32_t
873 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
874 void *arg, uint32_t evt)
875 {
876 lpfc_issue_els_logo(vport, ndlp, 0);
877 return ndlp->nlp_state;
878 }
879
880 static uint32_t
881 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
882 void *arg, uint32_t evt)
883 {
884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
885 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
886
887 spin_lock_irq(shost->host_lock);
888 ndlp->nlp_flag |= NLP_LOGO_ACC;
889 spin_unlock_irq(shost->host_lock);
890 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
891
892 return ndlp->nlp_state;
893 }
894
895 static uint32_t
896 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
897 void *arg, uint32_t evt)
898 {
899 return NLP_STE_FREED_NODE;
900 }
901
902 static uint32_t
903 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
904 void *arg, uint32_t evt)
905 {
906 return NLP_STE_FREED_NODE;
907 }
908
909 static uint32_t
910 lpfc_device_recov_unused_node(struct lpfc_vport *vport,
911 struct lpfc_nodelist *ndlp,
912 void *arg, uint32_t evt)
913 {
914 return ndlp->nlp_state;
915 }
916
917 static uint32_t
918 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
919 void *arg, uint32_t evt)
920 {
921 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
922 struct lpfc_hba *phba = vport->phba;
923 struct lpfc_iocbq *cmdiocb = arg;
924 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
925 uint32_t *lp = (uint32_t *) pcmd->virt;
926 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
927 struct ls_rjt stat;
928 int port_cmp;
929
930 memset(&stat, 0, sizeof (struct ls_rjt));
931
932 /* For a PLOGI, we only accept if our portname is less
933 * than the remote portname.
934 */
935 phba->fc_stat.elsLogiCol++;
936 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
937 sizeof(struct lpfc_name));
938
939 if (port_cmp >= 0) {
940 /* Reject this request because the remote node will accept
941 ours */
942 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
943 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
944 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
945 NULL);
946 } else {
947 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
948 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
949 (vport->num_disc_nodes)) {
950 spin_lock_irq(shost->host_lock);
951 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
952 spin_unlock_irq(shost->host_lock);
953 /* Check if there are more PLOGIs to be sent */
954 lpfc_more_plogi(vport);
955 if (vport->num_disc_nodes == 0) {
956 spin_lock_irq(shost->host_lock);
957 vport->fc_flag &= ~FC_NDISC_ACTIVE;
958 spin_unlock_irq(shost->host_lock);
959 lpfc_can_disctmo(vport);
960 lpfc_end_rscn(vport);
961 }
962 }
963 } /* If our portname was less */
964
965 return ndlp->nlp_state;
966 }
967
968 static uint32_t
969 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
970 void *arg, uint32_t evt)
971 {
972 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
973 struct ls_rjt stat;
974
975 memset(&stat, 0, sizeof (struct ls_rjt));
976 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
977 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
978 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
979 return ndlp->nlp_state;
980 }
981
982 static uint32_t
983 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
984 void *arg, uint32_t evt)
985 {
986 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
987
988 /* software abort outstanding PLOGI */
989 lpfc_els_abort(vport->phba, ndlp);
990
991 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
992 return ndlp->nlp_state;
993 }
994
995 static uint32_t
996 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, 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 = (struct lpfc_iocbq *) arg;
1002
1003 /* software abort outstanding PLOGI */
1004 lpfc_els_abort(phba, ndlp);
1005
1006 if (evt == NLP_EVT_RCV_LOGO) {
1007 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1008 } else {
1009 lpfc_issue_els_logo(vport, ndlp, 0);
1010 }
1011
1012 /* Put ndlp in npr state set plogi timer for 1 sec */
1013 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
1014 spin_lock_irq(shost->host_lock);
1015 ndlp->nlp_flag |= NLP_DELAY_TMO;
1016 spin_unlock_irq(shost->host_lock);
1017 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1018 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1019 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1020
1021 return ndlp->nlp_state;
1022 }
1023
1024 static uint32_t
1025 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
1026 struct lpfc_nodelist *ndlp,
1027 void *arg,
1028 uint32_t evt)
1029 {
1030 struct lpfc_hba *phba = vport->phba;
1031 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1032 struct lpfc_iocbq *cmdiocb, *rspiocb;
1033 struct lpfc_dmabuf *pcmd, *prsp, *mp;
1034 uint32_t *lp;
1035 IOCB_t *irsp;
1036 struct serv_parm *sp;
1037 LPFC_MBOXQ_t *mbox;
1038
1039 cmdiocb = (struct lpfc_iocbq *) arg;
1040 rspiocb = cmdiocb->context_un.rsp_iocb;
1041
1042 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1043 /* Recovery from PLOGI collision logic */
1044 return ndlp->nlp_state;
1045 }
1046
1047 irsp = &rspiocb->iocb;
1048
1049 if (irsp->ulpStatus)
1050 goto out;
1051
1052 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1053
1054 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1055 if (!prsp)
1056 goto out;
1057
1058 lp = (uint32_t *) prsp->virt;
1059 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
1060
1061 /* Some switches have FDMI servers returning 0 for WWN */
1062 if ((ndlp->nlp_DID != FDMI_DID) &&
1063 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1064 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
1065 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1066 "0142 PLOGI RSP: Invalid WWN.\n");
1067 goto out;
1068 }
1069 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
1070 goto out;
1071 /* PLOGI chkparm OK */
1072 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1073 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1074 ndlp->nlp_DID, ndlp->nlp_state,
1075 ndlp->nlp_flag, ndlp->nlp_rpi);
1076 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
1077 ndlp->nlp_fcp_info |= CLASS2;
1078 else
1079 ndlp->nlp_fcp_info |= CLASS3;
1080
1081 ndlp->nlp_class_sup = 0;
1082 if (sp->cls1.classValid)
1083 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1084 if (sp->cls2.classValid)
1085 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1086 if (sp->cls3.classValid)
1087 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1088 if (sp->cls4.classValid)
1089 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1090 ndlp->nlp_maxframe =
1091 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
1092
1093 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1094 if (!mbox) {
1095 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1096 "0133 PLOGI: no memory for reg_login "
1097 "Data: x%x x%x x%x x%x\n",
1098 ndlp->nlp_DID, ndlp->nlp_state,
1099 ndlp->nlp_flag, ndlp->nlp_rpi);
1100 goto out;
1101 }
1102
1103 lpfc_unreg_rpi(vport, ndlp);
1104
1105 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
1106 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
1107 switch (ndlp->nlp_DID) {
1108 case NameServer_DID:
1109 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
1110 break;
1111 case FDMI_DID:
1112 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
1113 break;
1114 default:
1115 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
1116 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1117 }
1118 mbox->context2 = lpfc_nlp_get(ndlp);
1119 mbox->vport = vport;
1120 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
1121 != MBX_NOT_FINISHED) {
1122 lpfc_nlp_set_state(vport, ndlp,
1123 NLP_STE_REG_LOGIN_ISSUE);
1124 return ndlp->nlp_state;
1125 }
1126 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1127 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1128 /* decrement node reference count to the failed mbox
1129 * command
1130 */
1131 lpfc_nlp_put(ndlp);
1132 mp = (struct lpfc_dmabuf *) mbox->context1;
1133 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1134 kfree(mp);
1135 mempool_free(mbox, phba->mbox_mem_pool);
1136
1137 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1138 "0134 PLOGI: cannot issue reg_login "
1139 "Data: x%x x%x x%x x%x\n",
1140 ndlp->nlp_DID, ndlp->nlp_state,
1141 ndlp->nlp_flag, ndlp->nlp_rpi);
1142 } else {
1143 mempool_free(mbox, phba->mbox_mem_pool);
1144
1145 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1146 "0135 PLOGI: cannot format reg_login "
1147 "Data: x%x x%x x%x x%x\n",
1148 ndlp->nlp_DID, ndlp->nlp_state,
1149 ndlp->nlp_flag, ndlp->nlp_rpi);
1150 }
1151
1152
1153 out:
1154 if (ndlp->nlp_DID == NameServer_DID) {
1155 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1156 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1157 "0261 Cannot Register NameServer login\n");
1158 }
1159
1160 /*
1161 ** In case the node reference counter does not go to zero, ensure that
1162 ** the stale state for the node is not processed.
1163 */
1164
1165 ndlp->nlp_prev_state = ndlp->nlp_state;
1166 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1167 spin_lock_irq(shost->host_lock);
1168 ndlp->nlp_flag |= NLP_DEFER_RM;
1169 spin_unlock_irq(shost->host_lock);
1170 return NLP_STE_FREED_NODE;
1171 }
1172
1173 static uint32_t
1174 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1175 void *arg, uint32_t evt)
1176 {
1177 return ndlp->nlp_state;
1178 }
1179
1180 static uint32_t
1181 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1182 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1183 {
1184 struct lpfc_hba *phba;
1185 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1186 MAILBOX_t *mb = &pmb->u.mb;
1187 uint16_t rpi;
1188
1189 phba = vport->phba;
1190 /* Release the RPI */
1191 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1192 !mb->mbxStatus) {
1193 rpi = pmb->u.mb.un.varWords[0];
1194 lpfc_release_rpi(phba, vport, rpi);
1195 }
1196 return ndlp->nlp_state;
1197 }
1198
1199 static uint32_t
1200 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1201 void *arg, uint32_t evt)
1202 {
1203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1204
1205 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1206 spin_lock_irq(shost->host_lock);
1207 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1208 spin_unlock_irq(shost->host_lock);
1209 return ndlp->nlp_state;
1210 } else {
1211 /* software abort outstanding PLOGI */
1212 lpfc_els_abort(vport->phba, ndlp);
1213
1214 lpfc_drop_node(vport, ndlp);
1215 return NLP_STE_FREED_NODE;
1216 }
1217 }
1218
1219 static uint32_t
1220 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1221 struct lpfc_nodelist *ndlp,
1222 void *arg,
1223 uint32_t evt)
1224 {
1225 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1226 struct lpfc_hba *phba = vport->phba;
1227
1228 /* Don't do anything that will mess up processing of the
1229 * previous RSCN.
1230 */
1231 if (vport->fc_flag & FC_RSCN_DEFERRED)
1232 return ndlp->nlp_state;
1233
1234 /* software abort outstanding PLOGI */
1235 lpfc_els_abort(phba, ndlp);
1236
1237 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1238 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1239 spin_lock_irq(shost->host_lock);
1240 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1241 spin_unlock_irq(shost->host_lock);
1242
1243 return ndlp->nlp_state;
1244 }
1245
1246 static uint32_t
1247 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1248 void *arg, uint32_t evt)
1249 {
1250 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1251 struct lpfc_hba *phba = vport->phba;
1252 struct lpfc_iocbq *cmdiocb;
1253
1254 /* software abort outstanding ADISC */
1255 lpfc_els_abort(phba, ndlp);
1256
1257 cmdiocb = (struct lpfc_iocbq *) arg;
1258
1259 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1260 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1261 spin_lock_irq(shost->host_lock);
1262 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1263 spin_unlock_irq(shost->host_lock);
1264 if (vport->num_disc_nodes)
1265 lpfc_more_adisc(vport);
1266 }
1267 return ndlp->nlp_state;
1268 }
1269 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1270 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1271 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1272
1273 return ndlp->nlp_state;
1274 }
1275
1276 static uint32_t
1277 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1278 void *arg, uint32_t evt)
1279 {
1280 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1281
1282 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1283 return ndlp->nlp_state;
1284 }
1285
1286 static uint32_t
1287 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1288 void *arg, uint32_t evt)
1289 {
1290 struct lpfc_hba *phba = vport->phba;
1291 struct lpfc_iocbq *cmdiocb;
1292
1293 cmdiocb = (struct lpfc_iocbq *) arg;
1294
1295 /* software abort outstanding ADISC */
1296 lpfc_els_abort(phba, ndlp);
1297
1298 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1299 return ndlp->nlp_state;
1300 }
1301
1302 static uint32_t
1303 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1304 struct lpfc_nodelist *ndlp,
1305 void *arg, uint32_t evt)
1306 {
1307 struct lpfc_iocbq *cmdiocb;
1308
1309 cmdiocb = (struct lpfc_iocbq *) arg;
1310
1311 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1312 return ndlp->nlp_state;
1313 }
1314
1315 static uint32_t
1316 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1317 void *arg, uint32_t evt)
1318 {
1319 struct lpfc_iocbq *cmdiocb;
1320
1321 cmdiocb = (struct lpfc_iocbq *) arg;
1322
1323 /* Treat like rcv logo */
1324 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1325 return ndlp->nlp_state;
1326 }
1327
1328 static uint32_t
1329 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1330 struct lpfc_nodelist *ndlp,
1331 void *arg, uint32_t evt)
1332 {
1333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1334 struct lpfc_hba *phba = vport->phba;
1335 struct lpfc_iocbq *cmdiocb, *rspiocb;
1336 IOCB_t *irsp;
1337 ADISC *ap;
1338 int rc;
1339
1340 cmdiocb = (struct lpfc_iocbq *) arg;
1341 rspiocb = cmdiocb->context_un.rsp_iocb;
1342
1343 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1344 irsp = &rspiocb->iocb;
1345
1346 if ((irsp->ulpStatus) ||
1347 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1348 /* 1 sec timeout */
1349 mod_timer(&ndlp->nlp_delayfunc,
1350 jiffies + msecs_to_jiffies(1000));
1351 spin_lock_irq(shost->host_lock);
1352 ndlp->nlp_flag |= NLP_DELAY_TMO;
1353 spin_unlock_irq(shost->host_lock);
1354 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1355
1356 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1357 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1358
1359 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1360 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1361 lpfc_unreg_rpi(vport, ndlp);
1362 return ndlp->nlp_state;
1363 }
1364
1365 if (phba->sli_rev == LPFC_SLI_REV4) {
1366 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
1367 if (rc) {
1368 /* Stay in state and retry. */
1369 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1370 return ndlp->nlp_state;
1371 }
1372 }
1373
1374 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1375 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1376 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1377 } else {
1378 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1379 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1380 }
1381
1382 return ndlp->nlp_state;
1383 }
1384
1385 static uint32_t
1386 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1387 void *arg, uint32_t evt)
1388 {
1389 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1390
1391 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1392 spin_lock_irq(shost->host_lock);
1393 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1394 spin_unlock_irq(shost->host_lock);
1395 return ndlp->nlp_state;
1396 } else {
1397 /* software abort outstanding ADISC */
1398 lpfc_els_abort(vport->phba, ndlp);
1399
1400 lpfc_drop_node(vport, ndlp);
1401 return NLP_STE_FREED_NODE;
1402 }
1403 }
1404
1405 static uint32_t
1406 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1407 struct lpfc_nodelist *ndlp,
1408 void *arg,
1409 uint32_t evt)
1410 {
1411 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1412 struct lpfc_hba *phba = vport->phba;
1413
1414 /* Don't do anything that will mess up processing of the
1415 * previous RSCN.
1416 */
1417 if (vport->fc_flag & FC_RSCN_DEFERRED)
1418 return ndlp->nlp_state;
1419
1420 /* software abort outstanding ADISC */
1421 lpfc_els_abort(phba, ndlp);
1422
1423 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1424 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1425 spin_lock_irq(shost->host_lock);
1426 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1427 spin_unlock_irq(shost->host_lock);
1428 lpfc_disc_set_adisc(vport, ndlp);
1429 return ndlp->nlp_state;
1430 }
1431
1432 static uint32_t
1433 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1434 struct lpfc_nodelist *ndlp,
1435 void *arg,
1436 uint32_t evt)
1437 {
1438 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1439
1440 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1441 return ndlp->nlp_state;
1442 }
1443
1444 static uint32_t
1445 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1446 struct lpfc_nodelist *ndlp,
1447 void *arg,
1448 uint32_t evt)
1449 {
1450 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1451
1452 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1453 return ndlp->nlp_state;
1454 }
1455
1456 static uint32_t
1457 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1458 struct lpfc_nodelist *ndlp,
1459 void *arg,
1460 uint32_t evt)
1461 {
1462 struct lpfc_hba *phba = vport->phba;
1463 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1464 LPFC_MBOXQ_t *mb;
1465 LPFC_MBOXQ_t *nextmb;
1466 struct lpfc_dmabuf *mp;
1467
1468 cmdiocb = (struct lpfc_iocbq *) arg;
1469
1470 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1471 if ((mb = phba->sli.mbox_active)) {
1472 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1473 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1474 lpfc_nlp_put(ndlp);
1475 mb->context2 = NULL;
1476 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1477 }
1478 }
1479
1480 spin_lock_irq(&phba->hbalock);
1481 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1482 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1483 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1484 mp = (struct lpfc_dmabuf *) (mb->context1);
1485 if (mp) {
1486 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1487 kfree(mp);
1488 }
1489 lpfc_nlp_put(ndlp);
1490 list_del(&mb->list);
1491 phba->sli.mboxq_cnt--;
1492 mempool_free(mb, phba->mbox_mem_pool);
1493 }
1494 }
1495 spin_unlock_irq(&phba->hbalock);
1496
1497 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1498 return ndlp->nlp_state;
1499 }
1500
1501 static uint32_t
1502 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1503 struct lpfc_nodelist *ndlp,
1504 void *arg,
1505 uint32_t evt)
1506 {
1507 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1508
1509 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1510 return ndlp->nlp_state;
1511 }
1512
1513 static uint32_t
1514 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1515 struct lpfc_nodelist *ndlp,
1516 void *arg,
1517 uint32_t evt)
1518 {
1519 struct lpfc_iocbq *cmdiocb;
1520
1521 cmdiocb = (struct lpfc_iocbq *) arg;
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_cmpl_reglogin_reglogin_issue(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 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1534 MAILBOX_t *mb = &pmb->u.mb;
1535 uint32_t did = mb->un.varWords[1];
1536
1537 if (mb->mbxStatus) {
1538 /* RegLogin failed */
1539 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1540 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1541 "x%x\n",
1542 did, mb->mbxStatus, vport->port_state,
1543 mb->un.varRegLogin.vpi,
1544 mb->un.varRegLogin.rpi);
1545 /*
1546 * If RegLogin failed due to lack of HBA resources do not
1547 * retry discovery.
1548 */
1549 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1550 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1551 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1552 return ndlp->nlp_state;
1553 }
1554
1555 /* Put ndlp in npr state set plogi timer for 1 sec */
1556 mod_timer(&ndlp->nlp_delayfunc,
1557 jiffies + msecs_to_jiffies(1000 * 1));
1558 spin_lock_irq(shost->host_lock);
1559 ndlp->nlp_flag |= NLP_DELAY_TMO;
1560 spin_unlock_irq(shost->host_lock);
1561 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1562
1563 lpfc_issue_els_logo(vport, ndlp, 0);
1564 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1565 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1566 return ndlp->nlp_state;
1567 }
1568
1569 /* SLI4 ports have preallocated logical rpis. */
1570 if (vport->phba->sli_rev < LPFC_SLI_REV4)
1571 ndlp->nlp_rpi = mb->un.varWords[0];
1572
1573 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1574
1575 /* Only if we are not a fabric nport do we issue PRLI */
1576 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1577 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1578 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1579 lpfc_issue_els_prli(vport, ndlp, 0);
1580 } else {
1581 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1582 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1583 }
1584 return ndlp->nlp_state;
1585 }
1586
1587 static uint32_t
1588 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1589 struct lpfc_nodelist *ndlp,
1590 void *arg,
1591 uint32_t evt)
1592 {
1593 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1594
1595 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1596 spin_lock_irq(shost->host_lock);
1597 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1598 spin_unlock_irq(shost->host_lock);
1599 return ndlp->nlp_state;
1600 } else {
1601 lpfc_drop_node(vport, ndlp);
1602 return NLP_STE_FREED_NODE;
1603 }
1604 }
1605
1606 static uint32_t
1607 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1608 struct lpfc_nodelist *ndlp,
1609 void *arg,
1610 uint32_t evt)
1611 {
1612 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1613
1614 /* Don't do anything that will mess up processing of the
1615 * previous RSCN.
1616 */
1617 if (vport->fc_flag & FC_RSCN_DEFERRED)
1618 return ndlp->nlp_state;
1619
1620 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1621 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1622 spin_lock_irq(shost->host_lock);
1623 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
1624 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1625 spin_unlock_irq(shost->host_lock);
1626 lpfc_disc_set_adisc(vport, ndlp);
1627 return ndlp->nlp_state;
1628 }
1629
1630 static uint32_t
1631 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1632 void *arg, uint32_t evt)
1633 {
1634 struct lpfc_iocbq *cmdiocb;
1635
1636 cmdiocb = (struct lpfc_iocbq *) arg;
1637
1638 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1639 return ndlp->nlp_state;
1640 }
1641
1642 static uint32_t
1643 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1644 void *arg, uint32_t evt)
1645 {
1646 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1647
1648 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1649 return ndlp->nlp_state;
1650 }
1651
1652 static uint32_t
1653 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1654 void *arg, uint32_t evt)
1655 {
1656 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1657
1658 /* Software abort outstanding PRLI before sending acc */
1659 lpfc_els_abort(vport->phba, ndlp);
1660
1661 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1662 return ndlp->nlp_state;
1663 }
1664
1665 static uint32_t
1666 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1667 void *arg, uint32_t evt)
1668 {
1669 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1670
1671 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1672 return ndlp->nlp_state;
1673 }
1674
1675 /* This routine is envoked when we rcv a PRLO request from a nport
1676 * we are logged into. We should send back a PRLO rsp setting the
1677 * appropriate bits.
1678 * NEXT STATE = PRLI_ISSUE
1679 */
1680 static uint32_t
1681 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1682 void *arg, uint32_t evt)
1683 {
1684 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1685
1686 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1687 return ndlp->nlp_state;
1688 }
1689
1690 static uint32_t
1691 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1692 void *arg, uint32_t evt)
1693 {
1694 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1695 struct lpfc_iocbq *cmdiocb, *rspiocb;
1696 struct lpfc_hba *phba = vport->phba;
1697 IOCB_t *irsp;
1698 PRLI *npr;
1699
1700 cmdiocb = (struct lpfc_iocbq *) arg;
1701 rspiocb = cmdiocb->context_un.rsp_iocb;
1702 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1703
1704 irsp = &rspiocb->iocb;
1705 if (irsp->ulpStatus) {
1706 if ((vport->port_type == LPFC_NPIV_PORT) &&
1707 vport->cfg_restrict_login) {
1708 goto out;
1709 }
1710 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1711 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1712 return ndlp->nlp_state;
1713 }
1714
1715 /* Check out PRLI rsp */
1716 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1717 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1718 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
1719 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1720 (npr->prliType == PRLI_FCP_TYPE)) {
1721 if (npr->initiatorFunc)
1722 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1723 if (npr->targetFunc) {
1724 ndlp->nlp_type |= NLP_FCP_TARGET;
1725 if (npr->writeXferRdyDis)
1726 ndlp->nlp_flag |= NLP_FIRSTBURST;
1727 }
1728 if (npr->Retry)
1729 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1730 }
1731 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1732 (vport->port_type == LPFC_NPIV_PORT) &&
1733 vport->cfg_restrict_login) {
1734 out:
1735 spin_lock_irq(shost->host_lock);
1736 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1737 spin_unlock_irq(shost->host_lock);
1738 lpfc_issue_els_logo(vport, ndlp, 0);
1739
1740 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1741 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1742 return ndlp->nlp_state;
1743 }
1744
1745 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1746 if (ndlp->nlp_type & NLP_FCP_TARGET)
1747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1748 else
1749 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1750 return ndlp->nlp_state;
1751 }
1752
1753 /*! lpfc_device_rm_prli_issue
1754 *
1755 * \pre
1756 * \post
1757 * \param phba
1758 * \param ndlp
1759 * \param arg
1760 * \param evt
1761 * \return uint32_t
1762 *
1763 * \b Description:
1764 * This routine is envoked when we a request to remove a nport we are in the
1765 * process of PRLIing. We should software abort outstanding prli, unreg
1766 * login, send a logout. We will change node state to UNUSED_NODE, put it
1767 * on plogi list so it can be freed when LOGO completes.
1768 *
1769 */
1770
1771 static uint32_t
1772 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1773 void *arg, uint32_t evt)
1774 {
1775 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1776
1777 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1778 spin_lock_irq(shost->host_lock);
1779 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1780 spin_unlock_irq(shost->host_lock);
1781 return ndlp->nlp_state;
1782 } else {
1783 /* software abort outstanding PLOGI */
1784 lpfc_els_abort(vport->phba, ndlp);
1785
1786 lpfc_drop_node(vport, ndlp);
1787 return NLP_STE_FREED_NODE;
1788 }
1789 }
1790
1791
1792 /*! lpfc_device_recov_prli_issue
1793 *
1794 * \pre
1795 * \post
1796 * \param phba
1797 * \param ndlp
1798 * \param arg
1799 * \param evt
1800 * \return uint32_t
1801 *
1802 * \b Description:
1803 * The routine is envoked when the state of a device is unknown, like
1804 * during a link down. We should remove the nodelist entry from the
1805 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1806 * outstanding PRLI command, then free the node entry.
1807 */
1808 static uint32_t
1809 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1810 struct lpfc_nodelist *ndlp,
1811 void *arg,
1812 uint32_t evt)
1813 {
1814 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1815 struct lpfc_hba *phba = vport->phba;
1816
1817 /* Don't do anything that will mess up processing of the
1818 * previous RSCN.
1819 */
1820 if (vport->fc_flag & FC_RSCN_DEFERRED)
1821 return ndlp->nlp_state;
1822
1823 /* software abort outstanding PRLI */
1824 lpfc_els_abort(phba, ndlp);
1825
1826 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1827 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1828 spin_lock_irq(shost->host_lock);
1829 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1830 spin_unlock_irq(shost->host_lock);
1831 lpfc_disc_set_adisc(vport, ndlp);
1832 return ndlp->nlp_state;
1833 }
1834
1835 static uint32_t
1836 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1837 void *arg, uint32_t evt)
1838 {
1839 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1840 struct ls_rjt stat;
1841
1842 memset(&stat, 0, sizeof(struct ls_rjt));
1843 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1844 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1845 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1846 return ndlp->nlp_state;
1847 }
1848
1849 static uint32_t
1850 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1851 void *arg, uint32_t evt)
1852 {
1853 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1854 struct ls_rjt stat;
1855
1856 memset(&stat, 0, sizeof(struct ls_rjt));
1857 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1858 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1859 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1860 return ndlp->nlp_state;
1861 }
1862
1863 static uint32_t
1864 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1865 void *arg, uint32_t evt)
1866 {
1867 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1868 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1869
1870 spin_lock_irq(shost->host_lock);
1871 ndlp->nlp_flag &= NLP_LOGO_ACC;
1872 spin_unlock_irq(shost->host_lock);
1873 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1874 return ndlp->nlp_state;
1875 }
1876
1877 static uint32_t
1878 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1879 void *arg, uint32_t evt)
1880 {
1881 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1882 struct ls_rjt stat;
1883
1884 memset(&stat, 0, sizeof(struct ls_rjt));
1885 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1886 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1887 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1888 return ndlp->nlp_state;
1889 }
1890
1891 static uint32_t
1892 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1893 void *arg, uint32_t evt)
1894 {
1895 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1896 struct ls_rjt stat;
1897
1898 memset(&stat, 0, sizeof(struct ls_rjt));
1899 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1900 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1901 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1902 return ndlp->nlp_state;
1903 }
1904
1905 static uint32_t
1906 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1907 void *arg, uint32_t evt)
1908 {
1909 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1910
1911 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
1912 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1913 spin_lock_irq(shost->host_lock);
1914 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1915 spin_unlock_irq(shost->host_lock);
1916 lpfc_disc_set_adisc(vport, ndlp);
1917 return ndlp->nlp_state;
1918 }
1919
1920 static uint32_t
1921 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1922 void *arg, uint32_t evt)
1923 {
1924 /*
1925 * Take no action. If a LOGO is outstanding, then possibly DevLoss has
1926 * timed out and is calling for Device Remove. In this case, the LOGO
1927 * must be allowed to complete in state LOGO_ISSUE so that the rpi
1928 * and other NLP flags are correctly cleaned up.
1929 */
1930 return ndlp->nlp_state;
1931 }
1932
1933 static uint32_t
1934 lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
1935 struct lpfc_nodelist *ndlp,
1936 void *arg, uint32_t evt)
1937 {
1938 /*
1939 * Device Recovery events have no meaning for a node with a LOGO
1940 * outstanding. The LOGO has to complete first and handle the
1941 * node from that point.
1942 */
1943 return ndlp->nlp_state;
1944 }
1945
1946 static uint32_t
1947 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1948 void *arg, uint32_t evt)
1949 {
1950 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1951
1952 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1953 return ndlp->nlp_state;
1954 }
1955
1956 static uint32_t
1957 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1958 void *arg, uint32_t evt)
1959 {
1960 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1961
1962 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1963 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1964 return ndlp->nlp_state;
1965 }
1966
1967 static uint32_t
1968 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1969 void *arg, uint32_t evt)
1970 {
1971 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1972
1973 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1974 return ndlp->nlp_state;
1975 }
1976
1977 static uint32_t
1978 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1979 void *arg, uint32_t evt)
1980 {
1981 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1982
1983 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1984 return ndlp->nlp_state;
1985 }
1986
1987 static uint32_t
1988 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1989 void *arg, uint32_t evt)
1990 {
1991 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1992
1993 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1994 return ndlp->nlp_state;
1995 }
1996
1997 static uint32_t
1998 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1999 struct lpfc_nodelist *ndlp,
2000 void *arg,
2001 uint32_t evt)
2002 {
2003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2004
2005 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2006 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2007 spin_lock_irq(shost->host_lock);
2008 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2009 spin_unlock_irq(shost->host_lock);
2010 lpfc_disc_set_adisc(vport, ndlp);
2011
2012 return ndlp->nlp_state;
2013 }
2014
2015 static uint32_t
2016 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2017 void *arg, uint32_t evt)
2018 {
2019 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2020
2021 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2022 return ndlp->nlp_state;
2023 }
2024
2025 static uint32_t
2026 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2027 void *arg, uint32_t evt)
2028 {
2029 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2030
2031 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2032 return ndlp->nlp_state;
2033 }
2034
2035 static uint32_t
2036 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2037 void *arg, uint32_t evt)
2038 {
2039 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2040
2041 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2042 return ndlp->nlp_state;
2043 }
2044
2045 static uint32_t
2046 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2047 struct lpfc_nodelist *ndlp,
2048 void *arg, uint32_t evt)
2049 {
2050 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2051
2052 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2053 return ndlp->nlp_state;
2054 }
2055
2056 static uint32_t
2057 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2058 void *arg, uint32_t evt)
2059 {
2060 struct lpfc_hba *phba = vport->phba;
2061 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2062
2063 /* flush the target */
2064 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
2065 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
2066
2067 /* Treat like rcv logo */
2068 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
2069 return ndlp->nlp_state;
2070 }
2071
2072 static uint32_t
2073 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2074 struct lpfc_nodelist *ndlp,
2075 void *arg,
2076 uint32_t evt)
2077 {
2078 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2079
2080 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2081 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2082 spin_lock_irq(shost->host_lock);
2083 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2084 spin_unlock_irq(shost->host_lock);
2085 lpfc_disc_set_adisc(vport, ndlp);
2086 return ndlp->nlp_state;
2087 }
2088
2089 static uint32_t
2090 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2091 void *arg, uint32_t evt)
2092 {
2093 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2094 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2095
2096 /* Ignore PLOGI if we have an outstanding LOGO */
2097 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
2098 return ndlp->nlp_state;
2099 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
2100 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2101 spin_lock_irq(shost->host_lock);
2102 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2103 spin_unlock_irq(shost->host_lock);
2104 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2105 /* send PLOGI immediately, move to PLOGI issue state */
2106 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2107 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2108 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2109 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2110 }
2111 }
2112 return ndlp->nlp_state;
2113 }
2114
2115 static uint32_t
2116 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2117 void *arg, uint32_t evt)
2118 {
2119 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2120 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2121 struct ls_rjt stat;
2122
2123 memset(&stat, 0, sizeof (struct ls_rjt));
2124 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2125 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2126 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2127
2128 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2129 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2130 spin_lock_irq(shost->host_lock);
2131 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2132 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2133 spin_unlock_irq(shost->host_lock);
2134 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2135 lpfc_issue_els_adisc(vport, ndlp, 0);
2136 } else {
2137 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2138 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2139 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2140 }
2141 }
2142 return ndlp->nlp_state;
2143 }
2144
2145 static uint32_t
2146 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2147 void *arg, uint32_t evt)
2148 {
2149 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2150
2151 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2152 return ndlp->nlp_state;
2153 }
2154
2155 static uint32_t
2156 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2157 void *arg, uint32_t evt)
2158 {
2159 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2160
2161 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2162 /*
2163 * Do not start discovery if discovery is about to start
2164 * or discovery in progress for this node. Starting discovery
2165 * here will affect the counting of discovery threads.
2166 */
2167 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
2168 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2169 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2170 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2171 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2172 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2173 lpfc_issue_els_adisc(vport, ndlp, 0);
2174 } else {
2175 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2176 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2177 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2178 }
2179 }
2180 return ndlp->nlp_state;
2181 }
2182
2183 static uint32_t
2184 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2185 void *arg, uint32_t evt)
2186 {
2187 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2188 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2189
2190 spin_lock_irq(shost->host_lock);
2191 ndlp->nlp_flag |= NLP_LOGO_ACC;
2192 spin_unlock_irq(shost->host_lock);
2193
2194 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2195
2196 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
2197 mod_timer(&ndlp->nlp_delayfunc,
2198 jiffies + msecs_to_jiffies(1000 * 1));
2199 spin_lock_irq(shost->host_lock);
2200 ndlp->nlp_flag |= NLP_DELAY_TMO;
2201 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2202 spin_unlock_irq(shost->host_lock);
2203 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
2204 } else {
2205 spin_lock_irq(shost->host_lock);
2206 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2207 spin_unlock_irq(shost->host_lock);
2208 }
2209 return ndlp->nlp_state;
2210 }
2211
2212 static uint32_t
2213 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2214 void *arg, uint32_t evt)
2215 {
2216 struct lpfc_iocbq *cmdiocb, *rspiocb;
2217 IOCB_t *irsp;
2218 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2219
2220 cmdiocb = (struct lpfc_iocbq *) arg;
2221 rspiocb = cmdiocb->context_un.rsp_iocb;
2222
2223 irsp = &rspiocb->iocb;
2224 if (irsp->ulpStatus) {
2225 spin_lock_irq(shost->host_lock);
2226 ndlp->nlp_flag |= NLP_DEFER_RM;
2227 spin_unlock_irq(shost->host_lock);
2228 return NLP_STE_FREED_NODE;
2229 }
2230 return ndlp->nlp_state;
2231 }
2232
2233 static uint32_t
2234 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2235 void *arg, uint32_t evt)
2236 {
2237 struct lpfc_iocbq *cmdiocb, *rspiocb;
2238 IOCB_t *irsp;
2239
2240 cmdiocb = (struct lpfc_iocbq *) arg;
2241 rspiocb = cmdiocb->context_un.rsp_iocb;
2242
2243 irsp = &rspiocb->iocb;
2244 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2245 lpfc_drop_node(vport, ndlp);
2246 return NLP_STE_FREED_NODE;
2247 }
2248 return ndlp->nlp_state;
2249 }
2250
2251 static uint32_t
2252 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2253 void *arg, uint32_t evt)
2254 {
2255 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2256
2257 /* For the fabric port just clear the fc flags. */
2258 if (ndlp->nlp_DID == Fabric_DID) {
2259 spin_lock_irq(shost->host_lock);
2260 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2261 spin_unlock_irq(shost->host_lock);
2262 }
2263 lpfc_unreg_rpi(vport, ndlp);
2264 return ndlp->nlp_state;
2265 }
2266
2267 static uint32_t
2268 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2269 void *arg, uint32_t evt)
2270 {
2271 struct lpfc_iocbq *cmdiocb, *rspiocb;
2272 IOCB_t *irsp;
2273
2274 cmdiocb = (struct lpfc_iocbq *) arg;
2275 rspiocb = cmdiocb->context_un.rsp_iocb;
2276
2277 irsp = &rspiocb->iocb;
2278 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2279 lpfc_drop_node(vport, ndlp);
2280 return NLP_STE_FREED_NODE;
2281 }
2282 return ndlp->nlp_state;
2283 }
2284
2285 static uint32_t
2286 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2287 struct lpfc_nodelist *ndlp,
2288 void *arg, uint32_t evt)
2289 {
2290 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
2291 MAILBOX_t *mb = &pmb->u.mb;
2292
2293 if (!mb->mbxStatus) {
2294 /* SLI4 ports have preallocated logical rpis. */
2295 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2296 ndlp->nlp_rpi = mb->un.varWords[0];
2297 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
2298 } else {
2299 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2300 lpfc_drop_node(vport, ndlp);
2301 return NLP_STE_FREED_NODE;
2302 }
2303 }
2304 return ndlp->nlp_state;
2305 }
2306
2307 static uint32_t
2308 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2309 void *arg, uint32_t evt)
2310 {
2311 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2312
2313 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2314 spin_lock_irq(shost->host_lock);
2315 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2316 spin_unlock_irq(shost->host_lock);
2317 return ndlp->nlp_state;
2318 }
2319 lpfc_drop_node(vport, ndlp);
2320 return NLP_STE_FREED_NODE;
2321 }
2322
2323 static uint32_t
2324 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2325 void *arg, uint32_t evt)
2326 {
2327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2328
2329 /* Don't do anything that will mess up processing of the
2330 * previous RSCN.
2331 */
2332 if (vport->fc_flag & FC_RSCN_DEFERRED)
2333 return ndlp->nlp_state;
2334
2335 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2336 spin_lock_irq(shost->host_lock);
2337 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2338 spin_unlock_irq(shost->host_lock);
2339 return ndlp->nlp_state;
2340 }
2341
2342
2343 /* This next section defines the NPort Discovery State Machine */
2344
2345 /* There are 4 different double linked lists nodelist entries can reside on.
2346 * The plogi list and adisc list are used when Link Up discovery or RSCN
2347 * processing is needed. Each list holds the nodes that we will send PLOGI
2348 * or ADISC on. These lists will keep track of what nodes will be effected
2349 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2350 * The unmapped_list will contain all nodes that we have successfully logged
2351 * into at the Fibre Channel level. The mapped_list will contain all nodes
2352 * that are mapped FCP targets.
2353 */
2354 /*
2355 * The bind list is a list of undiscovered (potentially non-existent) nodes
2356 * that we have saved binding information on. This information is used when
2357 * nodes transition from the unmapped to the mapped list.
2358 */
2359 /* For UNUSED_NODE state, the node has just been allocated .
2360 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2361 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2362 * and put on the unmapped list. For ADISC processing, the node is taken off
2363 * the ADISC list and placed on either the mapped or unmapped list (depending
2364 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2365 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2366 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2367 * node, the node is taken off the unmapped list. The binding list is checked
2368 * for a valid binding, or a binding is automatically assigned. If binding
2369 * assignment is unsuccessful, the node is left on the unmapped list. If
2370 * binding assignment is successful, the associated binding list entry (if
2371 * any) is removed, and the node is placed on the mapped list.
2372 */
2373 /*
2374 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
2375 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
2376 * expire, all effected nodes will receive a DEVICE_RM event.
2377 */
2378 /*
2379 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2380 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2381 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2382 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2383 * we will first process the ADISC list. 32 entries are processed initially and
2384 * ADISC is initited for each one. Completions / Events for each node are
2385 * funnelled thru the state machine. As each node finishes ADISC processing, it
2386 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2387 * waiting, and the ADISC list count is identically 0, then we are done. For
2388 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2389 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2390 * list. 32 entries are processed initially and PLOGI is initited for each one.
2391 * Completions / Events for each node are funnelled thru the state machine. As
2392 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2393 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2394 * indentically 0, then we are done. We have now completed discovery / RSCN
2395 * handling. Upon completion, ALL nodes should be on either the mapped or
2396 * unmapped lists.
2397 */
2398
2399 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2400 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
2401 /* Action routine Event Current State */
2402 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2403 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2404 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2405 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2406 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2407 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2408 lpfc_disc_illegal, /* CMPL_PLOGI */
2409 lpfc_disc_illegal, /* CMPL_PRLI */
2410 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2411 lpfc_disc_illegal, /* CMPL_ADISC */
2412 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2413 lpfc_device_rm_unused_node, /* DEVICE_RM */
2414 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
2415
2416 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2417 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2418 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2419 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2420 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2421 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2422 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2423 lpfc_disc_illegal, /* CMPL_PRLI */
2424 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2425 lpfc_disc_illegal, /* CMPL_ADISC */
2426 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2427 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2428 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2429
2430 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2431 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2432 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2433 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2434 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2435 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2436 lpfc_disc_illegal, /* CMPL_PLOGI */
2437 lpfc_disc_illegal, /* CMPL_PRLI */
2438 lpfc_disc_illegal, /* CMPL_LOGO */
2439 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2440 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2441 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2442 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2443
2444 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2445 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2446 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2447 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2448 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2449 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
2450 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2451 lpfc_disc_illegal, /* CMPL_PRLI */
2452 lpfc_disc_illegal, /* CMPL_LOGO */
2453 lpfc_disc_illegal, /* CMPL_ADISC */
2454 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2455 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2456 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2457
2458 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2459 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2460 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2461 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2462 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2463 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
2464 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2465 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2466 lpfc_disc_illegal, /* CMPL_LOGO */
2467 lpfc_disc_illegal, /* CMPL_ADISC */
2468 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2469 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2470 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2471
2472 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
2473 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
2474 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
2475 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
2476 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
2477 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
2478 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2479 lpfc_disc_illegal, /* CMPL_PRLI */
2480 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
2481 lpfc_disc_illegal, /* CMPL_ADISC */
2482 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2483 lpfc_device_rm_logo_issue, /* DEVICE_RM */
2484 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
2485
2486 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2487 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2488 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2489 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2490 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2491 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2492 lpfc_disc_illegal, /* CMPL_PLOGI */
2493 lpfc_disc_illegal, /* CMPL_PRLI */
2494 lpfc_disc_illegal, /* CMPL_LOGO */
2495 lpfc_disc_illegal, /* CMPL_ADISC */
2496 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2497 lpfc_disc_illegal, /* DEVICE_RM */
2498 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2499
2500 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2501 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2502 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2503 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2504 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2505 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2506 lpfc_disc_illegal, /* CMPL_PLOGI */
2507 lpfc_disc_illegal, /* CMPL_PRLI */
2508 lpfc_disc_illegal, /* CMPL_LOGO */
2509 lpfc_disc_illegal, /* CMPL_ADISC */
2510 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2511 lpfc_disc_illegal, /* DEVICE_RM */
2512 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2513
2514 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2515 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2516 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2517 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2518 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2519 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2520 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2521 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2522 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2523 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2524 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2525 lpfc_device_rm_npr_node, /* DEVICE_RM */
2526 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2527 };
2528
2529 int
2530 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2531 void *arg, uint32_t evt)
2532 {
2533 uint32_t cur_state, rc;
2534 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2535 uint32_t);
2536 uint32_t got_ndlp = 0;
2537
2538 if (lpfc_nlp_get(ndlp))
2539 got_ndlp = 1;
2540
2541 cur_state = ndlp->nlp_state;
2542
2543 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2544 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2545 "0211 DSM in event x%x on NPort x%x in "
2546 "state %d Data: x%x\n",
2547 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2548
2549 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2550 "DSM in: evt:%d ste:%d did:x%x",
2551 evt, cur_state, ndlp->nlp_DID);
2552
2553 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2554 rc = (func) (vport, ndlp, arg, evt);
2555
2556 /* DSM out state <rc> on NPort <nlp_DID> */
2557 if (got_ndlp) {
2558 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2559 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2560 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2561
2562 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2563 "DSM out: ste:%d did:x%x flg:x%x",
2564 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2565 /* Decrement the ndlp reference count held for this function */
2566 lpfc_nlp_put(ndlp);
2567 } else {
2568 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2569 "0213 DSM out state %d on NPort free\n", rc);
2570
2571 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2572 "DSM out: ste:%d did:x%x flg:x%x",
2573 rc, 0, 0);
2574 }
2575
2576 return rc;
2577 }
Linux with added FPC-III support