?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
bloba024e5a3918f1ddef687a2c20a6753f50b6eb7d1
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
8 * www.broadcom.com *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
10 * *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
23
24 #include <linux/blkdev.h>
25 #include <linux/pci.h>
26 #include <linux/slab.h>
27 #include <linux/interrupt.h>
28
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34
35 #include <linux/nvme-fc-driver.h>
36
37 #include "lpfc_hw4.h"
38 #include "lpfc_hw.h"
39 #include "lpfc_sli.h"
40 #include "lpfc_sli4.h"
41 #include "lpfc_nl.h"
42 #include "lpfc_disc.h"
43 #include "lpfc.h"
44 #include "lpfc_scsi.h"
45 #include "lpfc_nvme.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_crtn.h"
48 #include "lpfc_vport.h"
49 #include "lpfc_debugfs.h"
50
51
52 /* Called to verify a rcv'ed ADISC was intended for us. */
53 static int
54 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
55 struct lpfc_name *nn, struct lpfc_name *pn)
56 {
57 /* First, we MUST have a RPI registered */
58 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
59 return 0;
60
61 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
62 * table entry for that node.
63 */
64 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
65 return 0;
66
67 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
68 return 0;
69
70 /* we match, return success */
71 return 1;
72 }
73
74 int
75 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
76 struct serv_parm *sp, uint32_t class, int flogi)
77 {
78 volatile struct serv_parm *hsp = &vport->fc_sparam;
79 uint16_t hsp_value, ssp_value = 0;
80
81 /*
82 * The receive data field size and buffer-to-buffer receive data field
83 * size entries are 16 bits but are represented as two 8-bit fields in
84 * the driver data structure to account for rsvd bits and other control
85 * bits. Reconstruct and compare the fields as a 16-bit values before
86 * correcting the byte values.
87 */
88 if (sp->cls1.classValid) {
89 if (!flogi) {
90 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
91 hsp->cls1.rcvDataSizeLsb);
92 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
93 sp->cls1.rcvDataSizeLsb);
94 if (!ssp_value)
95 goto bad_service_param;
96 if (ssp_value > hsp_value) {
97 sp->cls1.rcvDataSizeLsb =
98 hsp->cls1.rcvDataSizeLsb;
99 sp->cls1.rcvDataSizeMsb =
100 hsp->cls1.rcvDataSizeMsb;
101 }
102 }
103 } else if (class == CLASS1)
104 goto bad_service_param;
105 if (sp->cls2.classValid) {
106 if (!flogi) {
107 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
108 hsp->cls2.rcvDataSizeLsb);
109 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
110 sp->cls2.rcvDataSizeLsb);
111 if (!ssp_value)
112 goto bad_service_param;
113 if (ssp_value > hsp_value) {
114 sp->cls2.rcvDataSizeLsb =
115 hsp->cls2.rcvDataSizeLsb;
116 sp->cls2.rcvDataSizeMsb =
117 hsp->cls2.rcvDataSizeMsb;
118 }
119 }
120 } else if (class == CLASS2)
121 goto bad_service_param;
122 if (sp->cls3.classValid) {
123 if (!flogi) {
124 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
125 hsp->cls3.rcvDataSizeLsb);
126 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
127 sp->cls3.rcvDataSizeLsb);
128 if (!ssp_value)
129 goto bad_service_param;
130 if (ssp_value > hsp_value) {
131 sp->cls3.rcvDataSizeLsb =
132 hsp->cls3.rcvDataSizeLsb;
133 sp->cls3.rcvDataSizeMsb =
134 hsp->cls3.rcvDataSizeMsb;
135 }
136 }
137 } else if (class == CLASS3)
138 goto bad_service_param;
139
140 /*
141 * Preserve the upper four bits of the MSB from the PLOGI response.
142 * These bits contain the Buffer-to-Buffer State Change Number
143 * from the target and need to be passed to the FW.
144 */
145 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
146 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
147 if (ssp_value > hsp_value) {
148 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
149 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
150 (hsp->cmn.bbRcvSizeMsb & 0x0F);
151 }
152
153 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
154 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
155 return 1;
156 bad_service_param:
157 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
158 "0207 Device %x "
159 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
160 "invalid service parameters. Ignoring device.\n",
161 ndlp->nlp_DID,
162 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
163 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
164 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
165 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
166 return 0;
167 }
168
169 static void *
170 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
171 struct lpfc_iocbq *rspiocb)
172 {
173 struct lpfc_dmabuf *pcmd, *prsp;
174 uint32_t *lp;
175 void *ptr = NULL;
176 IOCB_t *irsp;
177
178 irsp = &rspiocb->iocb;
179 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
180
181 /* For lpfc_els_abort, context2 could be zero'ed to delay
182 * freeing associated memory till after ABTS completes.
183 */
184 if (pcmd) {
185 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
186 list);
187 if (prsp) {
188 lp = (uint32_t *) prsp->virt;
189 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
190 }
191 } else {
192 /* Force ulpStatus error since we are returning NULL ptr */
193 if (!(irsp->ulpStatus)) {
194 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
195 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
196 }
197 ptr = NULL;
198 }
199 return ptr;
200 }
201
202
203
204 /*
205 * Free resources / clean up outstanding I/Os
206 * associated with a LPFC_NODELIST entry. This
207 * routine effectively results in a "software abort".
208 */
209 void
210 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
211 {
212 LIST_HEAD(abort_list);
213 struct lpfc_sli_ring *pring;
214 struct lpfc_iocbq *iocb, *next_iocb;
215
216 pring = lpfc_phba_elsring(phba);
217
218 /* In case of error recovery path, we might have a NULL pring here */
219 if (unlikely(!pring))
220 return;
221
222 /* Abort outstanding I/O on NPort <nlp_DID> */
223 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
224 "2819 Abort outstanding I/O on NPort x%x "
225 "Data: x%x x%x x%x\n",
226 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
227 ndlp->nlp_rpi);
228 /* Clean up all fabric IOs first.*/
229 lpfc_fabric_abort_nport(ndlp);
230
231 /*
232 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list
233 * of all ELS IOs that need an ABTS. The IOs need to stay on the
234 * txcmplq so that the abort operation completes them successfully.
235 */
236 spin_lock_irq(&phba->hbalock);
237 if (phba->sli_rev == LPFC_SLI_REV4)
238 spin_lock(&pring->ring_lock);
239 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
240 /* Add to abort_list on on NDLP match. */
241 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
242 list_add_tail(&iocb->dlist, &abort_list);
243 }
244 if (phba->sli_rev == LPFC_SLI_REV4)
245 spin_unlock(&pring->ring_lock);
246 spin_unlock_irq(&phba->hbalock);
247
248 /* Abort the targeted IOs and remove them from the abort list. */
249 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
250 spin_lock_irq(&phba->hbalock);
251 list_del_init(&iocb->dlist);
252 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
253 spin_unlock_irq(&phba->hbalock);
254 }
255
256 INIT_LIST_HEAD(&abort_list);
257
258 /* Now process the txq */
259 spin_lock_irq(&phba->hbalock);
260 if (phba->sli_rev == LPFC_SLI_REV4)
261 spin_lock(&pring->ring_lock);
262
263 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
264 /* Check to see if iocb matches the nport we are looking for */
265 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
266 list_del_init(&iocb->list);
267 list_add_tail(&iocb->list, &abort_list);
268 }
269 }
270
271 if (phba->sli_rev == LPFC_SLI_REV4)
272 spin_unlock(&pring->ring_lock);
273 spin_unlock_irq(&phba->hbalock);
274
275 /* Cancel all the IOCBs from the completions list */
276 lpfc_sli_cancel_iocbs(phba, &abort_list,
277 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
278
279 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
280 }
281
282 /* lpfc_defer_pt2pt_acc - Complete SLI3 pt2pt processing on link up
283 * @phba: pointer to lpfc hba data structure.
284 * @link_mbox: pointer to CONFIG_LINK mailbox object
285 *
286 * This routine is only called if we are SLI3, direct connect pt2pt
287 * mode and the remote NPort issues the PLOGI after link up.
288 */
289 static void
290 lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox)
291 {
292 LPFC_MBOXQ_t *login_mbox;
293 MAILBOX_t *mb = &link_mbox->u.mb;
294 struct lpfc_iocbq *save_iocb;
295 struct lpfc_nodelist *ndlp;
296 int rc;
297
298 ndlp = link_mbox->ctx_ndlp;
299 login_mbox = link_mbox->context3;
300 save_iocb = login_mbox->context3;
301 link_mbox->context3 = NULL;
302 login_mbox->context3 = NULL;
303
304 /* Check for CONFIG_LINK error */
305 if (mb->mbxStatus) {
306 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
307 "4575 CONFIG_LINK fails pt2pt discovery: %x\n",
308 mb->mbxStatus);
309 mempool_free(login_mbox, phba->mbox_mem_pool);
310 mempool_free(link_mbox, phba->mbox_mem_pool);
311 kfree(save_iocb);
312 return;
313 }
314
315 /* Now that CONFIG_LINK completed, and our SID is configured,
316 * we can now proceed with sending the PLOGI ACC.
317 */
318 rc = lpfc_els_rsp_acc(link_mbox->vport, ELS_CMD_PLOGI,
319 save_iocb, ndlp, login_mbox);
320 if (rc) {
321 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
322 "4576 PLOGI ACC fails pt2pt discovery: %x\n",
323 rc);
324 mempool_free(login_mbox, phba->mbox_mem_pool);
325 }
326
327 mempool_free(link_mbox, phba->mbox_mem_pool);
328 kfree(save_iocb);
329 }
330
331 /**
332 * lpfc_defer_tgt_acc - Progress SLI4 target rcv PLOGI handler
333 * @phba: Pointer to HBA context object.
334 * @pmb: Pointer to mailbox object.
335 *
336 * This function provides the unreg rpi mailbox completion handler for a tgt.
337 * The routine frees the memory resources associated with the completed
338 * mailbox command and transmits the ELS ACC.
339 *
340 * This routine is only called if we are SLI4, acting in target
341 * mode and the remote NPort issues the PLOGI after link up.
342 **/
343 static void
344 lpfc_defer_acc_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
345 {
346 struct lpfc_vport *vport = pmb->vport;
347 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;
348 LPFC_MBOXQ_t *mbox = pmb->context3;
349 struct lpfc_iocbq *piocb = NULL;
350 int rc;
351
352 if (mbox) {
353 pmb->context3 = NULL;
354 piocb = mbox->context3;
355 mbox->context3 = NULL;
356 }
357
358 /*
359 * Complete the unreg rpi mbx request, and update flags.
360 * This will also restart any deferred events.
361 */
362 lpfc_nlp_get(ndlp);
363 lpfc_sli4_unreg_rpi_cmpl_clr(phba, pmb);
364
365 if (!piocb) {
366 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS,
367 "4578 PLOGI ACC fail\n");
368 if (mbox)
369 mempool_free(mbox, phba->mbox_mem_pool);
370 goto out;
371 }
372
373 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, piocb, ndlp, mbox);
374 if (rc) {
375 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS,
376 "4579 PLOGI ACC fail %x\n", rc);
377 if (mbox)
378 mempool_free(mbox, phba->mbox_mem_pool);
379 }
380 kfree(piocb);
381 out:
382 lpfc_nlp_put(ndlp);
383 }
384
385 static int
386 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
387 struct lpfc_iocbq *cmdiocb)
388 {
389 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
390 struct lpfc_hba *phba = vport->phba;
391 struct lpfc_dmabuf *pcmd;
392 uint64_t nlp_portwwn = 0;
393 uint32_t *lp;
394 IOCB_t *icmd;
395 struct serv_parm *sp;
396 uint32_t ed_tov;
397 LPFC_MBOXQ_t *link_mbox;
398 LPFC_MBOXQ_t *login_mbox;
399 struct lpfc_iocbq *save_iocb;
400 struct ls_rjt stat;
401 uint32_t vid, flag;
402 u16 rpi;
403 int rc, defer_acc;
404
405 memset(&stat, 0, sizeof (struct ls_rjt));
406 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
407 lp = (uint32_t *) pcmd->virt;
408 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
409 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
410 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
411 "0140 PLOGI Reject: invalid nname\n");
412 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
413 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
414 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
415 NULL);
416 return 0;
417 }
418 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
419 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
420 "0141 PLOGI Reject: invalid pname\n");
421 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
422 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
423 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
424 NULL);
425 return 0;
426 }
427
428 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn);
429 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
430 /* Reject this request because invalid parameters */
431 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
432 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
433 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
434 NULL);
435 return 0;
436 }
437 icmd = &cmdiocb->iocb;
438
439 /* PLOGI chkparm OK */
440 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
441 "0114 PLOGI chkparm OK Data: x%x x%x x%x "
442 "x%x x%x x%x\n",
443 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
444 ndlp->nlp_rpi, vport->port_state,
445 vport->fc_flag);
446
447 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
448 ndlp->nlp_fcp_info |= CLASS2;
449 else
450 ndlp->nlp_fcp_info |= CLASS3;
451
452 defer_acc = 0;
453 ndlp->nlp_class_sup = 0;
454 if (sp->cls1.classValid)
455 ndlp->nlp_class_sup |= FC_COS_CLASS1;
456 if (sp->cls2.classValid)
457 ndlp->nlp_class_sup |= FC_COS_CLASS2;
458 if (sp->cls3.classValid)
459 ndlp->nlp_class_sup |= FC_COS_CLASS3;
460 if (sp->cls4.classValid)
461 ndlp->nlp_class_sup |= FC_COS_CLASS4;
462 ndlp->nlp_maxframe =
463 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
464 /* if already logged in, do implicit logout */
465 switch (ndlp->nlp_state) {
466 case NLP_STE_NPR_NODE:
467 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
468 break;
469 /* fall through */
470 case NLP_STE_REG_LOGIN_ISSUE:
471 case NLP_STE_PRLI_ISSUE:
472 case NLP_STE_UNMAPPED_NODE:
473 case NLP_STE_MAPPED_NODE:
474 /* For initiators, lpfc_plogi_confirm_nport skips fabric did.
475 * For target mode, execute implicit logo.
476 * Fabric nodes go into NPR.
477 */
478 if (!(ndlp->nlp_type & NLP_FABRIC) &&
479 !(phba->nvmet_support)) {
480 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
481 ndlp, NULL);
482 return 1;
483 }
484 if (nlp_portwwn != 0 &&
485 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn))
486 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
487 "0143 PLOGI recv'd from DID: x%x "
488 "WWPN changed: old %llx new %llx\n",
489 ndlp->nlp_DID,
490 (unsigned long long)nlp_portwwn,
491 (unsigned long long)
492 wwn_to_u64(sp->portName.u.wwn));
493
494 ndlp->nlp_prev_state = ndlp->nlp_state;
495 /* rport needs to be unregistered first */
496 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
497 break;
498 }
499
500 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
501 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
502 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
503 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
504
505 login_mbox = NULL;
506 link_mbox = NULL;
507 save_iocb = NULL;
508
509 /* Check for Nport to NPort pt2pt protocol */
510 if ((vport->fc_flag & FC_PT2PT) &&
511 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
512 /* rcv'ed PLOGI decides what our NPortId will be */
513 vport->fc_myDID = icmd->un.rcvels.parmRo;
514
515 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
516 if (sp->cmn.edtovResolution) {
517 /* E_D_TOV ticks are in nanoseconds */
518 ed_tov = (phba->fc_edtov + 999999) / 1000000;
519 }
520
521 /*
522 * For pt-to-pt, use the larger EDTOV
523 * RATOV = 2 * EDTOV
524 */
525 if (ed_tov > phba->fc_edtov)
526 phba->fc_edtov = ed_tov;
527 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
528
529 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
530
531 /* Issue config_link / reg_vfi to account for updated TOV's */
532
533 if (phba->sli_rev == LPFC_SLI_REV4)
534 lpfc_issue_reg_vfi(vport);
535 else {
536 defer_acc = 1;
537 link_mbox = mempool_alloc(phba->mbox_mem_pool,
538 GFP_KERNEL);
539 if (!link_mbox)
540 goto out;
541 lpfc_config_link(phba, link_mbox);
542 link_mbox->mbox_cmpl = lpfc_defer_pt2pt_acc;
543 link_mbox->vport = vport;
544 link_mbox->ctx_ndlp = ndlp;
545
546 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL);
547 if (!save_iocb)
548 goto out;
549 /* Save info from cmd IOCB used in rsp */
550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb,
551 sizeof(struct lpfc_iocbq));
552 }
553
554 lpfc_can_disctmo(vport);
555 }
556
557 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
558 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
559 sp->cmn.valid_vendor_ver_level) {
560 vid = be32_to_cpu(sp->un.vv.vid);
561 flag = be32_to_cpu(sp->un.vv.flags);
562 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP))
563 ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
564 }
565
566 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
567 if (!login_mbox)
568 goto out;
569
570 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
571 if (phba->nvmet_support && !defer_acc) {
572 link_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
573 if (!link_mbox)
574 goto out;
575
576 /* As unique identifiers such as iotag would be overwritten
577 * with those from the cmdiocb, allocate separate temporary
578 * storage for the copy.
579 */
580 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL);
581 if (!save_iocb)
582 goto out;
583
584 /* Unreg RPI is required for SLI4. */
585 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
586 lpfc_unreg_login(phba, vport->vpi, rpi, link_mbox);
587 link_mbox->vport = vport;
588 link_mbox->ctx_ndlp = ndlp;
589 link_mbox->mbox_cmpl = lpfc_defer_acc_rsp;
590
591 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
592 (!(vport->fc_flag & FC_OFFLINE_MODE)))
593 ndlp->nlp_flag |= NLP_UNREG_INP;
594
595 /* Save info from cmd IOCB used in rsp */
596 memcpy(save_iocb, cmdiocb, sizeof(*save_iocb));
597
598 /* Delay sending ACC till unreg RPI completes. */
599 defer_acc = 1;
600 } else if (phba->sli_rev == LPFC_SLI_REV4)
601 lpfc_unreg_rpi(vport, ndlp);
602
603 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
604 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi);
605 if (rc)
606 goto out;
607
608 /* ACC PLOGI rsp command needs to execute first,
609 * queue this login_mbox command to be processed later.
610 */
611 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
612 /*
613 * login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox
614 * command issued in lpfc_cmpl_els_acc().
615 */
616 login_mbox->vport = vport;
617 spin_lock_irq(shost->host_lock);
618 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
619 spin_unlock_irq(shost->host_lock);
620
621 /*
622 * If there is an outstanding PLOGI issued, abort it before
623 * sending ACC rsp for received PLOGI. If pending plogi
624 * is not canceled here, the plogi will be rejected by
625 * remote port and will be retried. On a configuration with
626 * single discovery thread, this will cause a huge delay in
627 * discovery. Also this will cause multiple state machines
628 * running in parallel for this node.
629 * This only applies to a fabric environment.
630 */
631 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) &&
632 (vport->fc_flag & FC_FABRIC)) {
633 /* software abort outstanding PLOGI */
634 lpfc_els_abort(phba, ndlp);
635 }
636
637 if ((vport->port_type == LPFC_NPIV_PORT &&
638 vport->cfg_restrict_login)) {
639
640 /* no deferred ACC */
641 kfree(save_iocb);
642
643 /* In order to preserve RPIs, we want to cleanup
644 * the default RPI the firmware created to rcv
645 * this ELS request. The only way to do this is
646 * to register, then unregister the RPI.
647 */
648 spin_lock_irq(shost->host_lock);
649 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
650 spin_unlock_irq(shost->host_lock);
651 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
652 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
653 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
654 ndlp, login_mbox);
655 if (rc)
656 mempool_free(login_mbox, phba->mbox_mem_pool);
657 return 1;
658 }
659 if (defer_acc) {
660 /* So the order here should be:
661 * SLI3 pt2pt
662 * Issue CONFIG_LINK mbox
663 * CONFIG_LINK cmpl
664 * SLI4 tgt
665 * Issue UNREG RPI mbx
666 * UNREG RPI cmpl
667 * Issue PLOGI ACC
668 * PLOGI ACC cmpl
669 * Issue REG_LOGIN mbox
670 */
671
672 /* Save the REG_LOGIN mbox for and rcv IOCB copy later */
673 link_mbox->context3 = login_mbox;
674 login_mbox->context3 = save_iocb;
675
676 /* Start the ball rolling by issuing CONFIG_LINK here */
677 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT);
678 if (rc == MBX_NOT_FINISHED)
679 goto out;
680 return 1;
681 }
682
683 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, login_mbox);
684 if (rc)
685 mempool_free(login_mbox, phba->mbox_mem_pool);
686 return 1;
687 out:
688 if (defer_acc)
689 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
690 "4577 discovery failure: %p %p %p\n",
691 save_iocb, link_mbox, login_mbox);
692 kfree(save_iocb);
693 if (link_mbox)
694 mempool_free(link_mbox, phba->mbox_mem_pool);
695 if (login_mbox)
696 mempool_free(login_mbox, phba->mbox_mem_pool);
697
698 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
699 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
700 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
701 return 0;
702 }
703
704 /**
705 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
706 * @phba: pointer to lpfc hba data structure.
707 * @mboxq: pointer to mailbox object
708 *
709 * This routine is invoked to issue a completion to a rcv'ed
710 * ADISC or PDISC after the paused RPI has been resumed.
711 **/
712 static void
713 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
714 {
715 struct lpfc_vport *vport;
716 struct lpfc_iocbq *elsiocb;
717 struct lpfc_nodelist *ndlp;
718 uint32_t cmd;
719
720 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf;
721 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp;
722 vport = mboxq->vport;
723 cmd = elsiocb->drvrTimeout;
724
725 if (cmd == ELS_CMD_ADISC) {
726 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
727 } else {
728 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
729 ndlp, NULL);
730 }
731 kfree(elsiocb);
732 mempool_free(mboxq, phba->mbox_mem_pool);
733 }
734
735 static int
736 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
737 struct lpfc_iocbq *cmdiocb)
738 {
739 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
740 struct lpfc_iocbq *elsiocb;
741 struct lpfc_dmabuf *pcmd;
742 struct serv_parm *sp;
743 struct lpfc_name *pnn, *ppn;
744 struct ls_rjt stat;
745 ADISC *ap;
746 IOCB_t *icmd;
747 uint32_t *lp;
748 uint32_t cmd;
749
750 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
751 lp = (uint32_t *) pcmd->virt;
752
753 cmd = *lp++;
754 if (cmd == ELS_CMD_ADISC) {
755 ap = (ADISC *) lp;
756 pnn = (struct lpfc_name *) & ap->nodeName;
757 ppn = (struct lpfc_name *) & ap->portName;
758 } else {
759 sp = (struct serv_parm *) lp;
760 pnn = (struct lpfc_name *) & sp->nodeName;
761 ppn = (struct lpfc_name *) & sp->portName;
762 }
763
764 icmd = &cmdiocb->iocb;
765 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
766
767 /*
768 * As soon as we send ACC, the remote NPort can
769 * start sending us data. Thus, for SLI4 we must
770 * resume the RPI before the ACC goes out.
771 */
772 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
773 elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
774 GFP_KERNEL);
775 if (elsiocb) {
776
777 /* Save info from cmd IOCB used in rsp */
778 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
779 sizeof(struct lpfc_iocbq));
780
781 /* Save the ELS cmd */
782 elsiocb->drvrTimeout = cmd;
783
784 lpfc_sli4_resume_rpi(ndlp,
785 lpfc_mbx_cmpl_resume_rpi, elsiocb);
786 goto out;
787 }
788 }
789
790 if (cmd == ELS_CMD_ADISC) {
791 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
792 } else {
793 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
794 ndlp, NULL);
795 }
796 out:
797 /* If we are authenticated, move to the proper state */
798 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
799 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
800 else
801 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
802
803 return 1;
804 }
805 /* Reject this request because invalid parameters */
806 stat.un.b.lsRjtRsvd0 = 0;
807 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
808 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
809 stat.un.b.vendorUnique = 0;
810 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
811
812 /* 1 sec timeout */
813 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
814
815 spin_lock_irq(shost->host_lock);
816 ndlp->nlp_flag |= NLP_DELAY_TMO;
817 spin_unlock_irq(shost->host_lock);
818 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
819 ndlp->nlp_prev_state = ndlp->nlp_state;
820 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
821 return 0;
822 }
823
824 static int
825 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
826 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
827 {
828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
829 struct lpfc_hba *phba = vport->phba;
830 struct lpfc_vport **vports;
831 int i, active_vlink_present = 0 ;
832
833 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
834 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
835 * PLOGIs during LOGO storms from a device.
836 */
837 spin_lock_irq(shost->host_lock);
838 ndlp->nlp_flag |= NLP_LOGO_ACC;
839 spin_unlock_irq(shost->host_lock);
840 if (els_cmd == ELS_CMD_PRLO)
841 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
842 else
843 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
844 if (ndlp->nlp_DID == Fabric_DID) {
845 if (vport->port_state <= LPFC_FDISC)
846 goto out;
847 lpfc_linkdown_port(vport);
848 spin_lock_irq(shost->host_lock);
849 vport->fc_flag |= FC_VPORT_LOGO_RCVD;
850 spin_unlock_irq(shost->host_lock);
851 vports = lpfc_create_vport_work_array(phba);
852 if (vports) {
853 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
854 i++) {
855 if ((!(vports[i]->fc_flag &
856 FC_VPORT_LOGO_RCVD)) &&
857 (vports[i]->port_state > LPFC_FDISC)) {
858 active_vlink_present = 1;
859 break;
860 }
861 }
862 lpfc_destroy_vport_work_array(phba, vports);
863 }
864
865 /*
866 * Don't re-instantiate if vport is marked for deletion.
867 * If we are here first then vport_delete is going to wait
868 * for discovery to complete.
869 */
870 if (!(vport->load_flag & FC_UNLOADING) &&
871 active_vlink_present) {
872 /*
873 * If there are other active VLinks present,
874 * re-instantiate the Vlink using FDISC.
875 */
876 mod_timer(&ndlp->nlp_delayfunc,
877 jiffies + msecs_to_jiffies(1000));
878 spin_lock_irq(shost->host_lock);
879 ndlp->nlp_flag |= NLP_DELAY_TMO;
880 spin_unlock_irq(shost->host_lock);
881 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
882 vport->port_state = LPFC_FDISC;
883 } else {
884 spin_lock_irq(shost->host_lock);
885 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
886 spin_unlock_irq(shost->host_lock);
887 lpfc_retry_pport_discovery(phba);
888 }
889 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
890 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
891 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
892 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
893 /* Only try to re-login if this is NOT a Fabric Node */
894 mod_timer(&ndlp->nlp_delayfunc,
895 jiffies + msecs_to_jiffies(1000 * 1));
896 spin_lock_irq(shost->host_lock);
897 ndlp->nlp_flag |= NLP_DELAY_TMO;
898 spin_unlock_irq(shost->host_lock);
899
900 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
901 }
902 out:
903 ndlp->nlp_prev_state = ndlp->nlp_state;
904 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
905
906 spin_lock_irq(shost->host_lock);
907 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
908 spin_unlock_irq(shost->host_lock);
909 /* The driver has to wait until the ACC completes before it continues
910 * processing the LOGO. The action will resume in
911 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
912 * unreg_login, the driver waits so the ACC does not get aborted.
913 */
914 return 0;
915 }
916
917 static uint32_t
918 lpfc_rcv_prli_support_check(struct lpfc_vport *vport,
919 struct lpfc_nodelist *ndlp,
920 struct lpfc_iocbq *cmdiocb)
921 {
922 struct ls_rjt stat;
923 uint32_t *payload;
924 uint32_t cmd;
925
926 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
927 cmd = *payload;
928 if (vport->phba->nvmet_support) {
929 /* Must be a NVME PRLI */
930 if (cmd == ELS_CMD_PRLI)
931 goto out;
932 } else {
933 /* Initiator mode. */
934 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI))
935 goto out;
936 }
937 return 1;
938 out:
939 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC,
940 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d "
941 "state x%x flags x%x\n",
942 cmd, ndlp->nlp_rpi, ndlp->nlp_state,
943 ndlp->nlp_flag);
944 memset(&stat, 0, sizeof(struct ls_rjt));
945 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED;
946 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED;
947 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
948 ndlp, NULL);
949 return 0;
950 }
951
952 static void
953 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
954 struct lpfc_iocbq *cmdiocb)
955 {
956 struct lpfc_hba *phba = vport->phba;
957 struct lpfc_dmabuf *pcmd;
958 uint32_t *lp;
959 PRLI *npr;
960 struct fc_rport *rport = ndlp->rport;
961 u32 roles;
962
963 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
964 lp = (uint32_t *) pcmd->virt;
965 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
966
967 if ((npr->prliType == PRLI_FCP_TYPE) ||
968 (npr->prliType == PRLI_NVME_TYPE)) {
969 if (npr->initiatorFunc) {
970 if (npr->prliType == PRLI_FCP_TYPE)
971 ndlp->nlp_type |= NLP_FCP_INITIATOR;
972 if (npr->prliType == PRLI_NVME_TYPE)
973 ndlp->nlp_type |= NLP_NVME_INITIATOR;
974 }
975 if (npr->targetFunc) {
976 if (npr->prliType == PRLI_FCP_TYPE)
977 ndlp->nlp_type |= NLP_FCP_TARGET;
978 if (npr->prliType == PRLI_NVME_TYPE)
979 ndlp->nlp_type |= NLP_NVME_TARGET;
980 if (npr->writeXferRdyDis)
981 ndlp->nlp_flag |= NLP_FIRSTBURST;
982 }
983 if (npr->Retry && ndlp->nlp_type &
984 (NLP_FCP_INITIATOR | NLP_FCP_TARGET))
985 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
986
987 if (npr->Retry && phba->nsler &&
988 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET))
989 ndlp->nlp_nvme_info |= NLP_NVME_NSLER;
990
991
992 /* If this driver is in nvme target mode, set the ndlp's fc4
993 * type to NVME provided the PRLI response claims NVME FC4
994 * type. Target mode does not issue gft_id so doesn't get
995 * the fc4 type set until now.
996 */
997 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) {
998 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
999 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1000 }
1001 if (npr->prliType == PRLI_FCP_TYPE)
1002 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1003 }
1004 if (rport) {
1005 /* We need to update the rport role values */
1006 roles = FC_RPORT_ROLE_UNKNOWN;
1007 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1008 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1009 if (ndlp->nlp_type & NLP_FCP_TARGET)
1010 roles |= FC_RPORT_ROLE_FCP_TARGET;
1011
1012 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1013 "rport rolechg: role:x%x did:x%x flg:x%x",
1014 roles, ndlp->nlp_DID, ndlp->nlp_flag);
1015
1016 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1017 fc_remote_port_rolechg(rport, roles);
1018 }
1019 }
1020
1021 static uint32_t
1022 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1023 {
1024 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1025
1026 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
1027 spin_lock_irq(shost->host_lock);
1028 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1029 spin_unlock_irq(shost->host_lock);
1030 return 0;
1031 }
1032
1033 if (!(vport->fc_flag & FC_PT2PT)) {
1034 /* Check config parameter use-adisc or FCP-2 */
1035 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) ||
1036 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
1037 (ndlp->nlp_type & NLP_FCP_TARGET)))) {
1038 spin_lock_irq(shost->host_lock);
1039 ndlp->nlp_flag |= NLP_NPR_ADISC;
1040 spin_unlock_irq(shost->host_lock);
1041 return 1;
1042 }
1043 }
1044
1045 spin_lock_irq(shost->host_lock);
1046 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1047 spin_unlock_irq(shost->host_lock);
1048 lpfc_unreg_rpi(vport, ndlp);
1049 return 0;
1050 }
1051
1052 /**
1053 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
1054 * @phba : Pointer to lpfc_hba structure.
1055 * @vport: Pointer to lpfc_vport structure.
1056 * @rpi : rpi to be release.
1057 *
1058 * This function will send a unreg_login mailbox command to the firmware
1059 * to release a rpi.
1060 **/
1061 static void
1062 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport,
1063 struct lpfc_nodelist *ndlp, uint16_t rpi)
1064 {
1065 LPFC_MBOXQ_t *pmb;
1066 int rc;
1067
1068 /* If there is already an UNREG in progress for this ndlp,
1069 * no need to queue up another one.
1070 */
1071 if (ndlp->nlp_flag & NLP_UNREG_INP) {
1072 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1073 "1435 release_rpi SKIP UNREG x%x on "
1074 "NPort x%x deferred x%x flg x%x "
1075 "Data: x%px\n",
1076 ndlp->nlp_rpi, ndlp->nlp_DID,
1077 ndlp->nlp_defer_did,
1078 ndlp->nlp_flag, ndlp);
1079 return;
1080 }
1081
1082 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
1083 GFP_KERNEL);
1084 if (!pmb)
1085 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1086 "2796 mailbox memory allocation failed \n");
1087 else {
1088 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
1089 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1090 pmb->vport = vport;
1091 pmb->ctx_ndlp = ndlp;
1092
1093 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
1094 (!(vport->fc_flag & FC_OFFLINE_MODE)))
1095 ndlp->nlp_flag |= NLP_UNREG_INP;
1096
1097 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1098 "1437 release_rpi UNREG x%x "
1099 "on NPort x%x flg x%x\n",
1100 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag);
1101
1102 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1103 if (rc == MBX_NOT_FINISHED)
1104 mempool_free(pmb, phba->mbox_mem_pool);
1105 }
1106 }
1107
1108 static uint32_t
1109 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1110 void *arg, uint32_t evt)
1111 {
1112 struct lpfc_hba *phba;
1113 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1114 uint16_t rpi;
1115
1116 phba = vport->phba;
1117 /* Release the RPI if reglogin completing */
1118 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1119 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
1120 (!pmb->u.mb.mbxStatus)) {
1121 rpi = pmb->u.mb.un.varWords[0];
1122 lpfc_release_rpi(phba, vport, ndlp, rpi);
1123 }
1124 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1125 "0271 Illegal State Transition: node x%x "
1126 "event x%x, state x%x Data: x%x x%x\n",
1127 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
1128 ndlp->nlp_flag);
1129 return ndlp->nlp_state;
1130 }
1131
1132 static uint32_t
1133 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1134 void *arg, uint32_t evt)
1135 {
1136 /* This transition is only legal if we previously
1137 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
1138 * working on the same NPortID, do nothing for this thread
1139 * to stop it.
1140 */
1141 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
1142 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1143 "0272 Illegal State Transition: node x%x "
1144 "event x%x, state x%x Data: x%x x%x\n",
1145 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
1146 ndlp->nlp_flag);
1147 }
1148 return ndlp->nlp_state;
1149 }
1150
1151 /* Start of Discovery State Machine routines */
1152
1153 static uint32_t
1154 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1155 void *arg, uint32_t evt)
1156 {
1157 struct lpfc_iocbq *cmdiocb;
1158
1159 cmdiocb = (struct lpfc_iocbq *) arg;
1160
1161 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1162 return ndlp->nlp_state;
1163 }
1164 return NLP_STE_FREED_NODE;
1165 }
1166
1167 static uint32_t
1168 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1169 void *arg, uint32_t evt)
1170 {
1171 lpfc_issue_els_logo(vport, ndlp, 0);
1172 return ndlp->nlp_state;
1173 }
1174
1175 static uint32_t
1176 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1177 void *arg, uint32_t evt)
1178 {
1179 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1180 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1181
1182 spin_lock_irq(shost->host_lock);
1183 ndlp->nlp_flag |= NLP_LOGO_ACC;
1184 spin_unlock_irq(shost->host_lock);
1185 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1186
1187 return ndlp->nlp_state;
1188 }
1189
1190 static uint32_t
1191 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1192 void *arg, uint32_t evt)
1193 {
1194 return NLP_STE_FREED_NODE;
1195 }
1196
1197 static uint32_t
1198 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1199 void *arg, uint32_t evt)
1200 {
1201 return NLP_STE_FREED_NODE;
1202 }
1203
1204 static uint32_t
1205 lpfc_device_recov_unused_node(struct lpfc_vport *vport,
1206 struct lpfc_nodelist *ndlp,
1207 void *arg, uint32_t evt)
1208 {
1209 return ndlp->nlp_state;
1210 }
1211
1212 static uint32_t
1213 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1214 void *arg, uint32_t evt)
1215 {
1216 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1217 struct lpfc_hba *phba = vport->phba;
1218 struct lpfc_iocbq *cmdiocb = arg;
1219 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1220 uint32_t *lp = (uint32_t *) pcmd->virt;
1221 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
1222 struct ls_rjt stat;
1223 int port_cmp;
1224
1225 memset(&stat, 0, sizeof (struct ls_rjt));
1226
1227 /* For a PLOGI, we only accept if our portname is less
1228 * than the remote portname.
1229 */
1230 phba->fc_stat.elsLogiCol++;
1231 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
1232 sizeof(struct lpfc_name));
1233
1234 if (port_cmp >= 0) {
1235 /* Reject this request because the remote node will accept
1236 ours */
1237 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1238 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
1239 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
1240 NULL);
1241 } else {
1242 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
1243 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
1244 (vport->num_disc_nodes)) {
1245 spin_lock_irq(shost->host_lock);
1246 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1247 spin_unlock_irq(shost->host_lock);
1248 /* Check if there are more PLOGIs to be sent */
1249 lpfc_more_plogi(vport);
1250 if (vport->num_disc_nodes == 0) {
1251 spin_lock_irq(shost->host_lock);
1252 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1253 spin_unlock_irq(shost->host_lock);
1254 lpfc_can_disctmo(vport);
1255 lpfc_end_rscn(vport);
1256 }
1257 }
1258 } /* If our portname was less */
1259
1260 return ndlp->nlp_state;
1261 }
1262
1263 static uint32_t
1264 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1265 void *arg, uint32_t evt)
1266 {
1267 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1268 struct ls_rjt stat;
1269
1270 memset(&stat, 0, sizeof (struct ls_rjt));
1271 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
1272 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1273 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1274 return ndlp->nlp_state;
1275 }
1276
1277 static uint32_t
1278 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1279 void *arg, uint32_t evt)
1280 {
1281 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1282
1283 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */
1284 if (vport->phba->sli_rev == LPFC_SLI_REV3)
1285 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag;
1286 /* software abort outstanding PLOGI */
1287 lpfc_els_abort(vport->phba, ndlp);
1288
1289 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1290 return ndlp->nlp_state;
1291 }
1292
1293 static uint32_t
1294 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1295 void *arg, uint32_t evt)
1296 {
1297 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1298 struct lpfc_hba *phba = vport->phba;
1299 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1300
1301 /* software abort outstanding PLOGI */
1302 lpfc_els_abort(phba, ndlp);
1303
1304 if (evt == NLP_EVT_RCV_LOGO) {
1305 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1306 } else {
1307 lpfc_issue_els_logo(vport, ndlp, 0);
1308 }
1309
1310 /* Put ndlp in npr state set plogi timer for 1 sec */
1311 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
1312 spin_lock_irq(shost->host_lock);
1313 ndlp->nlp_flag |= NLP_DELAY_TMO;
1314 spin_unlock_irq(shost->host_lock);
1315 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1316 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1317 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1318
1319 return ndlp->nlp_state;
1320 }
1321
1322 static uint32_t
1323 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
1324 struct lpfc_nodelist *ndlp,
1325 void *arg,
1326 uint32_t evt)
1327 {
1328 struct lpfc_hba *phba = vport->phba;
1329 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1330 struct lpfc_iocbq *cmdiocb, *rspiocb;
1331 struct lpfc_dmabuf *pcmd, *prsp, *mp;
1332 uint32_t *lp;
1333 uint32_t vid, flag;
1334 IOCB_t *irsp;
1335 struct serv_parm *sp;
1336 uint32_t ed_tov;
1337 LPFC_MBOXQ_t *mbox;
1338 int rc;
1339
1340 cmdiocb = (struct lpfc_iocbq *) arg;
1341 rspiocb = cmdiocb->context_un.rsp_iocb;
1342
1343 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1344 /* Recovery from PLOGI collision logic */
1345 return ndlp->nlp_state;
1346 }
1347
1348 irsp = &rspiocb->iocb;
1349
1350 if (irsp->ulpStatus)
1351 goto out;
1352
1353 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1354
1355 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1356 if (!prsp)
1357 goto out;
1358
1359 lp = (uint32_t *) prsp->virt;
1360 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
1361
1362 /* Some switches have FDMI servers returning 0 for WWN */
1363 if ((ndlp->nlp_DID != FDMI_DID) &&
1364 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1365 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
1366 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1367 "0142 PLOGI RSP: Invalid WWN.\n");
1368 goto out;
1369 }
1370 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
1371 goto out;
1372 /* PLOGI chkparm OK */
1373 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1374 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1375 ndlp->nlp_DID, ndlp->nlp_state,
1376 ndlp->nlp_flag, ndlp->nlp_rpi);
1377 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
1378 ndlp->nlp_fcp_info |= CLASS2;
1379 else
1380 ndlp->nlp_fcp_info |= CLASS3;
1381
1382 ndlp->nlp_class_sup = 0;
1383 if (sp->cls1.classValid)
1384 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1385 if (sp->cls2.classValid)
1386 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1387 if (sp->cls3.classValid)
1388 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1389 if (sp->cls4.classValid)
1390 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1391 ndlp->nlp_maxframe =
1392 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
1393
1394 if ((vport->fc_flag & FC_PT2PT) &&
1395 (vport->fc_flag & FC_PT2PT_PLOGI)) {
1396 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
1397 if (sp->cmn.edtovResolution) {
1398 /* E_D_TOV ticks are in nanoseconds */
1399 ed_tov = (phba->fc_edtov + 999999) / 1000000;
1400 }
1401
1402 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
1403 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
1404 sp->cmn.valid_vendor_ver_level) {
1405 vid = be32_to_cpu(sp->un.vv.vid);
1406 flag = be32_to_cpu(sp->un.vv.flags);
1407 if ((vid == LPFC_VV_EMLX_ID) &&
1408 (flag & LPFC_VV_SUPPRESS_RSP))
1409 ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
1410 }
1411
1412 /*
1413 * Use the larger EDTOV
1414 * RATOV = 2 * EDTOV for pt-to-pt
1415 */
1416 if (ed_tov > phba->fc_edtov)
1417 phba->fc_edtov = ed_tov;
1418 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
1419
1420 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
1421
1422 /* Issue config_link / reg_vfi to account for updated TOV's */
1423 if (phba->sli_rev == LPFC_SLI_REV4) {
1424 lpfc_issue_reg_vfi(vport);
1425 } else {
1426 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1427 if (!mbox) {
1428 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1429 "0133 PLOGI: no memory "
1430 "for config_link "
1431 "Data: x%x x%x x%x x%x\n",
1432 ndlp->nlp_DID, ndlp->nlp_state,
1433 ndlp->nlp_flag, ndlp->nlp_rpi);
1434 goto out;
1435 }
1436
1437 lpfc_config_link(phba, mbox);
1438
1439 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1440 mbox->vport = vport;
1441 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1442 if (rc == MBX_NOT_FINISHED) {
1443 mempool_free(mbox, phba->mbox_mem_pool);
1444 goto out;
1445 }
1446 }
1447 }
1448
1449 lpfc_unreg_rpi(vport, ndlp);
1450
1451 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1452 if (!mbox) {
1453 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1454 "0018 PLOGI: no memory for reg_login "
1455 "Data: x%x x%x x%x x%x\n",
1456 ndlp->nlp_DID, ndlp->nlp_state,
1457 ndlp->nlp_flag, ndlp->nlp_rpi);
1458 goto out;
1459 }
1460
1461 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
1462 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
1463 switch (ndlp->nlp_DID) {
1464 case NameServer_DID:
1465 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
1466 break;
1467 case FDMI_DID:
1468 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
1469 break;
1470 default:
1471 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
1472 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1473 }
1474 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
1475 mbox->vport = vport;
1476 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
1477 != MBX_NOT_FINISHED) {
1478 lpfc_nlp_set_state(vport, ndlp,
1479 NLP_STE_REG_LOGIN_ISSUE);
1480 return ndlp->nlp_state;
1481 }
1482 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1483 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1484 /* decrement node reference count to the failed mbox
1485 * command
1486 */
1487 lpfc_nlp_put(ndlp);
1488 mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
1489 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1490 kfree(mp);
1491 mempool_free(mbox, phba->mbox_mem_pool);
1492
1493 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1494 "0134 PLOGI: cannot issue reg_login "
1495 "Data: x%x x%x x%x x%x\n",
1496 ndlp->nlp_DID, ndlp->nlp_state,
1497 ndlp->nlp_flag, ndlp->nlp_rpi);
1498 } else {
1499 mempool_free(mbox, phba->mbox_mem_pool);
1500
1501 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1502 "0135 PLOGI: cannot format reg_login "
1503 "Data: x%x x%x x%x x%x\n",
1504 ndlp->nlp_DID, ndlp->nlp_state,
1505 ndlp->nlp_flag, ndlp->nlp_rpi);
1506 }
1507
1508
1509 out:
1510 if (ndlp->nlp_DID == NameServer_DID) {
1511 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1512 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1513 "0261 Cannot Register NameServer login\n");
1514 }
1515
1516 /*
1517 ** In case the node reference counter does not go to zero, ensure that
1518 ** the stale state for the node is not processed.
1519 */
1520
1521 ndlp->nlp_prev_state = ndlp->nlp_state;
1522 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1523 spin_lock_irq(shost->host_lock);
1524 ndlp->nlp_flag |= NLP_DEFER_RM;
1525 spin_unlock_irq(shost->host_lock);
1526 return NLP_STE_FREED_NODE;
1527 }
1528
1529 static uint32_t
1530 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1531 void *arg, uint32_t evt)
1532 {
1533 return ndlp->nlp_state;
1534 }
1535
1536 static uint32_t
1537 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1538 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1539 {
1540 struct lpfc_hba *phba;
1541 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1542 MAILBOX_t *mb = &pmb->u.mb;
1543 uint16_t rpi;
1544
1545 phba = vport->phba;
1546 /* Release the RPI */
1547 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1548 !mb->mbxStatus) {
1549 rpi = pmb->u.mb.un.varWords[0];
1550 lpfc_release_rpi(phba, vport, ndlp, rpi);
1551 }
1552 return ndlp->nlp_state;
1553 }
1554
1555 static uint32_t
1556 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1557 void *arg, uint32_t evt)
1558 {
1559 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1560
1561 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1562 spin_lock_irq(shost->host_lock);
1563 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1564 spin_unlock_irq(shost->host_lock);
1565 return ndlp->nlp_state;
1566 } else {
1567 /* software abort outstanding PLOGI */
1568 lpfc_els_abort(vport->phba, ndlp);
1569
1570 lpfc_drop_node(vport, ndlp);
1571 return NLP_STE_FREED_NODE;
1572 }
1573 }
1574
1575 static uint32_t
1576 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1577 struct lpfc_nodelist *ndlp,
1578 void *arg,
1579 uint32_t evt)
1580 {
1581 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1582 struct lpfc_hba *phba = vport->phba;
1583
1584 /* Don't do anything that will mess up processing of the
1585 * previous RSCN.
1586 */
1587 if (vport->fc_flag & FC_RSCN_DEFERRED)
1588 return ndlp->nlp_state;
1589
1590 /* software abort outstanding PLOGI */
1591 lpfc_els_abort(phba, ndlp);
1592
1593 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1594 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1595 spin_lock_irq(shost->host_lock);
1596 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1597 spin_unlock_irq(shost->host_lock);
1598
1599 return ndlp->nlp_state;
1600 }
1601
1602 static uint32_t
1603 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1604 void *arg, uint32_t evt)
1605 {
1606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1607 struct lpfc_hba *phba = vport->phba;
1608 struct lpfc_iocbq *cmdiocb;
1609
1610 /* software abort outstanding ADISC */
1611 lpfc_els_abort(phba, ndlp);
1612
1613 cmdiocb = (struct lpfc_iocbq *) arg;
1614
1615 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1616 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1617 spin_lock_irq(shost->host_lock);
1618 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1619 spin_unlock_irq(shost->host_lock);
1620 if (vport->num_disc_nodes)
1621 lpfc_more_adisc(vport);
1622 }
1623 return ndlp->nlp_state;
1624 }
1625 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1626 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1627 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1628
1629 return ndlp->nlp_state;
1630 }
1631
1632 static uint32_t
1633 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1634 void *arg, uint32_t evt)
1635 {
1636 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1637
1638 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
1639 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1640 return ndlp->nlp_state;
1641 }
1642
1643 static uint32_t
1644 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1645 void *arg, uint32_t evt)
1646 {
1647 struct lpfc_hba *phba = vport->phba;
1648 struct lpfc_iocbq *cmdiocb;
1649
1650 cmdiocb = (struct lpfc_iocbq *) arg;
1651
1652 /* software abort outstanding ADISC */
1653 lpfc_els_abort(phba, ndlp);
1654
1655 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1656 return ndlp->nlp_state;
1657 }
1658
1659 static uint32_t
1660 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1661 struct lpfc_nodelist *ndlp,
1662 void *arg, uint32_t evt)
1663 {
1664 struct lpfc_iocbq *cmdiocb;
1665
1666 cmdiocb = (struct lpfc_iocbq *) arg;
1667
1668 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1669 return ndlp->nlp_state;
1670 }
1671
1672 static uint32_t
1673 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1674 void *arg, uint32_t evt)
1675 {
1676 struct lpfc_iocbq *cmdiocb;
1677
1678 cmdiocb = (struct lpfc_iocbq *) arg;
1679
1680 /* Treat like rcv logo */
1681 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1682 return ndlp->nlp_state;
1683 }
1684
1685 static uint32_t
1686 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1687 struct lpfc_nodelist *ndlp,
1688 void *arg, uint32_t evt)
1689 {
1690 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1691 struct lpfc_hba *phba = vport->phba;
1692 struct lpfc_iocbq *cmdiocb, *rspiocb;
1693 IOCB_t *irsp;
1694 ADISC *ap;
1695 int rc;
1696
1697 cmdiocb = (struct lpfc_iocbq *) arg;
1698 rspiocb = cmdiocb->context_un.rsp_iocb;
1699
1700 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1701 irsp = &rspiocb->iocb;
1702
1703 if ((irsp->ulpStatus) ||
1704 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1705 /* 1 sec timeout */
1706 mod_timer(&ndlp->nlp_delayfunc,
1707 jiffies + msecs_to_jiffies(1000));
1708 spin_lock_irq(shost->host_lock);
1709 ndlp->nlp_flag |= NLP_DELAY_TMO;
1710 spin_unlock_irq(shost->host_lock);
1711 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1712
1713 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1714 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1715
1716 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1717 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1718 lpfc_unreg_rpi(vport, ndlp);
1719 return ndlp->nlp_state;
1720 }
1721
1722 if (phba->sli_rev == LPFC_SLI_REV4) {
1723 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
1724 if (rc) {
1725 /* Stay in state and retry. */
1726 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1727 return ndlp->nlp_state;
1728 }
1729 }
1730
1731 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1732 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1733 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1734 } else {
1735 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1736 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1737 }
1738
1739 return ndlp->nlp_state;
1740 }
1741
1742 static uint32_t
1743 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1744 void *arg, uint32_t evt)
1745 {
1746 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1747
1748 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1749 spin_lock_irq(shost->host_lock);
1750 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1751 spin_unlock_irq(shost->host_lock);
1752 return ndlp->nlp_state;
1753 } else {
1754 /* software abort outstanding ADISC */
1755 lpfc_els_abort(vport->phba, ndlp);
1756
1757 lpfc_drop_node(vport, ndlp);
1758 return NLP_STE_FREED_NODE;
1759 }
1760 }
1761
1762 static uint32_t
1763 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1764 struct lpfc_nodelist *ndlp,
1765 void *arg,
1766 uint32_t evt)
1767 {
1768 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1769 struct lpfc_hba *phba = vport->phba;
1770
1771 /* Don't do anything that will mess up processing of the
1772 * previous RSCN.
1773 */
1774 if (vport->fc_flag & FC_RSCN_DEFERRED)
1775 return ndlp->nlp_state;
1776
1777 /* software abort outstanding ADISC */
1778 lpfc_els_abort(phba, ndlp);
1779
1780 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1781 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1782 spin_lock_irq(shost->host_lock);
1783 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1784 spin_unlock_irq(shost->host_lock);
1785 lpfc_disc_set_adisc(vport, ndlp);
1786 return ndlp->nlp_state;
1787 }
1788
1789 static uint32_t
1790 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1791 struct lpfc_nodelist *ndlp,
1792 void *arg,
1793 uint32_t evt)
1794 {
1795 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1796
1797 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1798 return ndlp->nlp_state;
1799 }
1800
1801 static uint32_t
1802 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1803 struct lpfc_nodelist *ndlp,
1804 void *arg,
1805 uint32_t evt)
1806 {
1807 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1808 struct ls_rjt stat;
1809
1810 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) {
1811 return ndlp->nlp_state;
1812 }
1813 if (vport->phba->nvmet_support) {
1814 /* NVME Target mode. Handle and respond to the PRLI and
1815 * transition to UNMAPPED provided the RPI has completed
1816 * registration.
1817 */
1818 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
1819 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1820 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1821 } else {
1822 /* RPI registration has not completed. Reject the PRLI
1823 * to prevent an illegal state transition when the
1824 * rpi registration does complete.
1825 */
1826 memset(&stat, 0, sizeof(struct ls_rjt));
1827 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
1828 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1829 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
1830 ndlp, NULL);
1831 return ndlp->nlp_state;
1832 }
1833 } else {
1834 /* Initiator mode. */
1835 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1836 }
1837 return ndlp->nlp_state;
1838 }
1839
1840 static uint32_t
1841 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1842 struct lpfc_nodelist *ndlp,
1843 void *arg,
1844 uint32_t evt)
1845 {
1846 struct lpfc_hba *phba = vport->phba;
1847 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1848 LPFC_MBOXQ_t *mb;
1849 LPFC_MBOXQ_t *nextmb;
1850 struct lpfc_dmabuf *mp;
1851 struct lpfc_nodelist *ns_ndlp;
1852
1853 cmdiocb = (struct lpfc_iocbq *) arg;
1854
1855 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1856 if ((mb = phba->sli.mbox_active)) {
1857 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1858 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
1859 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1860 lpfc_nlp_put(ndlp);
1861 mb->ctx_ndlp = NULL;
1862 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1863 }
1864 }
1865
1866 spin_lock_irq(&phba->hbalock);
1867 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1868 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1869 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
1870 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
1871 if (mp) {
1872 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1873 kfree(mp);
1874 }
1875 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1876 lpfc_nlp_put(ndlp);
1877 list_del(&mb->list);
1878 phba->sli.mboxq_cnt--;
1879 mempool_free(mb, phba->mbox_mem_pool);
1880 }
1881 }
1882 spin_unlock_irq(&phba->hbalock);
1883
1884 /* software abort if any GID_FT is outstanding */
1885 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) {
1886 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID);
1887 if (ns_ndlp && NLP_CHK_NODE_ACT(ns_ndlp))
1888 lpfc_els_abort(phba, ns_ndlp);
1889 }
1890
1891 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1892 return ndlp->nlp_state;
1893 }
1894
1895 static uint32_t
1896 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1897 struct lpfc_nodelist *ndlp,
1898 void *arg,
1899 uint32_t evt)
1900 {
1901 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1902
1903 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1904 return ndlp->nlp_state;
1905 }
1906
1907 static uint32_t
1908 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1909 struct lpfc_nodelist *ndlp,
1910 void *arg,
1911 uint32_t evt)
1912 {
1913 struct lpfc_iocbq *cmdiocb;
1914
1915 cmdiocb = (struct lpfc_iocbq *) arg;
1916 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1917 return ndlp->nlp_state;
1918 }
1919
1920 static uint32_t
1921 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1922 struct lpfc_nodelist *ndlp,
1923 void *arg,
1924 uint32_t evt)
1925 {
1926 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1927 struct lpfc_hba *phba = vport->phba;
1928 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1929 MAILBOX_t *mb = &pmb->u.mb;
1930 uint32_t did = mb->un.varWords[1];
1931
1932 if (mb->mbxStatus) {
1933 /* RegLogin failed */
1934 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1935 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1936 "x%x\n",
1937 did, mb->mbxStatus, vport->port_state,
1938 mb->un.varRegLogin.vpi,
1939 mb->un.varRegLogin.rpi);
1940 /*
1941 * If RegLogin failed due to lack of HBA resources do not
1942 * retry discovery.
1943 */
1944 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1945 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1946 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1947 return ndlp->nlp_state;
1948 }
1949
1950 /* Put ndlp in npr state set plogi timer for 1 sec */
1951 mod_timer(&ndlp->nlp_delayfunc,
1952 jiffies + msecs_to_jiffies(1000 * 1));
1953 spin_lock_irq(shost->host_lock);
1954 ndlp->nlp_flag |= NLP_DELAY_TMO;
1955 spin_unlock_irq(shost->host_lock);
1956 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1957
1958 lpfc_issue_els_logo(vport, ndlp, 0);
1959 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1960 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1961 return ndlp->nlp_state;
1962 }
1963
1964 /* SLI4 ports have preallocated logical rpis. */
1965 if (phba->sli_rev < LPFC_SLI_REV4)
1966 ndlp->nlp_rpi = mb->un.varWords[0];
1967
1968 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1969
1970 /* Only if we are not a fabric nport do we issue PRLI */
1971 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1972 "3066 RegLogin Complete on x%x x%x x%x\n",
1973 did, ndlp->nlp_type, ndlp->nlp_fc4_type);
1974 if (!(ndlp->nlp_type & NLP_FABRIC) &&
1975 (phba->nvmet_support == 0)) {
1976 /* The driver supports FCP and NVME concurrently. If the
1977 * ndlp's nlp_fc4_type is still zero, the driver doesn't
1978 * know what PRLI to send yet. Figure that out now and
1979 * call PRLI depending on the outcome.
1980 */
1981 if (vport->fc_flag & FC_PT2PT) {
1982 /* If we are pt2pt, there is no Fabric to determine
1983 * the FC4 type of the remote nport. So if NVME
1984 * is configured try it.
1985 */
1986 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1987 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
1988 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
1989 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
1990 /* We need to update the localport also */
1991 lpfc_nvme_update_localport(vport);
1992 }
1993
1994 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
1995 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1996
1997 } else if (ndlp->nlp_fc4_type == 0) {
1998 /* If we are only configured for FCP, the driver
1999 * should just issue PRLI for FCP. Otherwise issue
2000 * GFT_ID to determine if remote port supports NVME.
2001 */
2002 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) {
2003 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0,
2004 ndlp->nlp_DID);
2005 return ndlp->nlp_state;
2006 }
2007 ndlp->nlp_fc4_type = NLP_FC4_FCP;
2008 }
2009
2010 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2011 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
2012 if (lpfc_issue_els_prli(vport, ndlp, 0)) {
2013 lpfc_issue_els_logo(vport, ndlp, 0);
2014 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2015 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2016 }
2017 } else {
2018 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support)
2019 phba->targetport->port_id = vport->fc_myDID;
2020
2021 /* Only Fabric ports should transition. NVME target
2022 * must complete PRLI.
2023 */
2024 if (ndlp->nlp_type & NLP_FABRIC) {
2025 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2026 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2027 }
2028 }
2029 return ndlp->nlp_state;
2030 }
2031
2032 static uint32_t
2033 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
2034 struct lpfc_nodelist *ndlp,
2035 void *arg,
2036 uint32_t evt)
2037 {
2038 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2039
2040 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2041 spin_lock_irq(shost->host_lock);
2042 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2043 spin_unlock_irq(shost->host_lock);
2044 return ndlp->nlp_state;
2045 } else {
2046 lpfc_drop_node(vport, ndlp);
2047 return NLP_STE_FREED_NODE;
2048 }
2049 }
2050
2051 static uint32_t
2052 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
2053 struct lpfc_nodelist *ndlp,
2054 void *arg,
2055 uint32_t evt)
2056 {
2057 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2058
2059 /* Don't do anything that will mess up processing of the
2060 * previous RSCN.
2061 */
2062 if (vport->fc_flag & FC_RSCN_DEFERRED)
2063 return ndlp->nlp_state;
2064
2065 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2066 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2067 spin_lock_irq(shost->host_lock);
2068
2069 /* If we are a target we won't immediately transition into PRLI,
2070 * so if REG_LOGIN already completed we don't need to ignore it.
2071 */
2072 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) ||
2073 !vport->phba->nvmet_support)
2074 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
2075
2076 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2077 spin_unlock_irq(shost->host_lock);
2078 lpfc_disc_set_adisc(vport, ndlp);
2079 return ndlp->nlp_state;
2080 }
2081
2082 static uint32_t
2083 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2084 void *arg, uint32_t evt)
2085 {
2086 struct lpfc_iocbq *cmdiocb;
2087
2088 cmdiocb = (struct lpfc_iocbq *) arg;
2089
2090 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2091 return ndlp->nlp_state;
2092 }
2093
2094 static uint32_t
2095 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2096 void *arg, uint32_t evt)
2097 {
2098 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2099
2100 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
2101 return ndlp->nlp_state;
2102 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2103 return ndlp->nlp_state;
2104 }
2105
2106 static uint32_t
2107 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2108 void *arg, uint32_t evt)
2109 {
2110 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2111
2112 /* Software abort outstanding PRLI before sending acc */
2113 lpfc_els_abort(vport->phba, ndlp);
2114
2115 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2116 return ndlp->nlp_state;
2117 }
2118
2119 static uint32_t
2120 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2121 void *arg, uint32_t evt)
2122 {
2123 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2124
2125 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2126 return ndlp->nlp_state;
2127 }
2128
2129 /* This routine is envoked when we rcv a PRLO request from a nport
2130 * we are logged into. We should send back a PRLO rsp setting the
2131 * appropriate bits.
2132 * NEXT STATE = PRLI_ISSUE
2133 */
2134 static uint32_t
2135 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2136 void *arg, uint32_t evt)
2137 {
2138 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2139
2140 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
2141 return ndlp->nlp_state;
2142 }
2143
2144 static uint32_t
2145 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2146 void *arg, uint32_t evt)
2147 {
2148 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2149 struct lpfc_iocbq *cmdiocb, *rspiocb;
2150 struct lpfc_hba *phba = vport->phba;
2151 IOCB_t *irsp;
2152 PRLI *npr;
2153 struct lpfc_nvme_prli *nvpr;
2154 void *temp_ptr;
2155
2156 cmdiocb = (struct lpfc_iocbq *) arg;
2157 rspiocb = cmdiocb->context_un.rsp_iocb;
2158
2159 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp
2160 * format is different so NULL the two PRLI types so that the
2161 * driver correctly gets the correct context.
2162 */
2163 npr = NULL;
2164 nvpr = NULL;
2165 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
2166 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ)
2167 npr = (PRLI *) temp_ptr;
2168 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ)
2169 nvpr = (struct lpfc_nvme_prli *) temp_ptr;
2170
2171 irsp = &rspiocb->iocb;
2172 if (irsp->ulpStatus) {
2173 if ((vport->port_type == LPFC_NPIV_PORT) &&
2174 vport->cfg_restrict_login) {
2175 goto out;
2176 }
2177
2178 /* Adjust the nlp_type accordingly if the PRLI failed */
2179 if (npr)
2180 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP;
2181 if (nvpr)
2182 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME;
2183
2184 /* We can't set the DSM state till BOTH PRLIs complete */
2185 goto out_err;
2186 }
2187
2188 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
2189 (npr->prliType == PRLI_FCP_TYPE)) {
2190 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
2191 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n",
2192 npr->initiatorFunc,
2193 npr->targetFunc);
2194 if (npr->initiatorFunc)
2195 ndlp->nlp_type |= NLP_FCP_INITIATOR;
2196 if (npr->targetFunc) {
2197 ndlp->nlp_type |= NLP_FCP_TARGET;
2198 if (npr->writeXferRdyDis)
2199 ndlp->nlp_flag |= NLP_FIRSTBURST;
2200 }
2201 if (npr->Retry)
2202 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
2203
2204 } else if (nvpr &&
2205 (bf_get_be32(prli_acc_rsp_code, nvpr) ==
2206 PRLI_REQ_EXECUTED) &&
2207 (bf_get_be32(prli_type_code, nvpr) ==
2208 PRLI_NVME_TYPE)) {
2209
2210 /* Complete setting up the remote ndlp personality. */
2211 if (bf_get_be32(prli_init, nvpr))
2212 ndlp->nlp_type |= NLP_NVME_INITIATOR;
2213
2214 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) &&
2215 bf_get_be32(prli_conf, nvpr))
2216
2217 ndlp->nlp_nvme_info |= NLP_NVME_NSLER;
2218 else
2219 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
2220
2221 /* Target driver cannot solicit NVME FB. */
2222 if (bf_get_be32(prli_tgt, nvpr)) {
2223 /* Complete the nvme target roles. The transport
2224 * needs to know if the rport is capable of
2225 * discovery in addition to its role.
2226 */
2227 ndlp->nlp_type |= NLP_NVME_TARGET;
2228 if (bf_get_be32(prli_disc, nvpr))
2229 ndlp->nlp_type |= NLP_NVME_DISCOVERY;
2230
2231 /*
2232 * If prli_fba is set, the Target supports FirstBurst.
2233 * If prli_fb_sz is 0, the FirstBurst size is unlimited,
2234 * otherwise it defines the actual size supported by
2235 * the NVME Target.
2236 */
2237 if ((bf_get_be32(prli_fba, nvpr) == 1) &&
2238 (phba->cfg_nvme_enable_fb) &&
2239 (!phba->nvmet_support)) {
2240 /* Both sides support FB. The target's first
2241 * burst size is a 512 byte encoded value.
2242 */
2243 ndlp->nlp_flag |= NLP_FIRSTBURST;
2244 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz,
2245 nvpr);
2246
2247 /* Expressed in units of 512 bytes */
2248 if (ndlp->nvme_fb_size)
2249 ndlp->nvme_fb_size <<=
2250 LPFC_NVME_FB_SHIFT;
2251 else
2252 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB;
2253 }
2254 }
2255
2256 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
2257 "6029 NVME PRLI Cmpl w1 x%08x "
2258 "w4 x%08x w5 x%08x flag x%x, "
2259 "fcp_info x%x nlp_type x%x\n",
2260 be32_to_cpu(nvpr->word1),
2261 be32_to_cpu(nvpr->word4),
2262 be32_to_cpu(nvpr->word5),
2263 ndlp->nlp_flag, ndlp->nlp_fcp_info,
2264 ndlp->nlp_type);
2265 }
2266 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
2267 (vport->port_type == LPFC_NPIV_PORT) &&
2268 vport->cfg_restrict_login) {
2269 out:
2270 spin_lock_irq(shost->host_lock);
2271 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
2272 spin_unlock_irq(shost->host_lock);
2273 lpfc_issue_els_logo(vport, ndlp, 0);
2274
2275 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2276 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2277 return ndlp->nlp_state;
2278 }
2279
2280 out_err:
2281 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs
2282 * are complete.
2283 */
2284 if (ndlp->fc4_prli_sent == 0) {
2285 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2286 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
2287 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2288 else if (ndlp->nlp_type &
2289 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR))
2290 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2291 } else
2292 lpfc_printf_vlog(vport,
2293 KERN_INFO, LOG_ELS,
2294 "3067 PRLI's still outstanding "
2295 "on x%06x - count %d, Pend Node Mode "
2296 "transition...\n",
2297 ndlp->nlp_DID, ndlp->fc4_prli_sent);
2298
2299 return ndlp->nlp_state;
2300 }
2301
2302 /*! lpfc_device_rm_prli_issue
2303 *
2304 * \pre
2305 * \post
2306 * \param phba
2307 * \param ndlp
2308 * \param arg
2309 * \param evt
2310 * \return uint32_t
2311 *
2312 * \b Description:
2313 * This routine is envoked when we a request to remove a nport we are in the
2314 * process of PRLIing. We should software abort outstanding prli, unreg
2315 * login, send a logout. We will change node state to UNUSED_NODE, put it
2316 * on plogi list so it can be freed when LOGO completes.
2317 *
2318 */
2319
2320 static uint32_t
2321 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2322 void *arg, uint32_t evt)
2323 {
2324 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2325
2326 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2327 spin_lock_irq(shost->host_lock);
2328 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2329 spin_unlock_irq(shost->host_lock);
2330 return ndlp->nlp_state;
2331 } else {
2332 /* software abort outstanding PLOGI */
2333 lpfc_els_abort(vport->phba, ndlp);
2334
2335 lpfc_drop_node(vport, ndlp);
2336 return NLP_STE_FREED_NODE;
2337 }
2338 }
2339
2340
2341 /*! lpfc_device_recov_prli_issue
2342 *
2343 * \pre
2344 * \post
2345 * \param phba
2346 * \param ndlp
2347 * \param arg
2348 * \param evt
2349 * \return uint32_t
2350 *
2351 * \b Description:
2352 * The routine is envoked when the state of a device is unknown, like
2353 * during a link down. We should remove the nodelist entry from the
2354 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
2355 * outstanding PRLI command, then free the node entry.
2356 */
2357 static uint32_t
2358 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
2359 struct lpfc_nodelist *ndlp,
2360 void *arg,
2361 uint32_t evt)
2362 {
2363 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2364 struct lpfc_hba *phba = vport->phba;
2365
2366 /* Don't do anything that will mess up processing of the
2367 * previous RSCN.
2368 */
2369 if (vport->fc_flag & FC_RSCN_DEFERRED)
2370 return ndlp->nlp_state;
2371
2372 /* software abort outstanding PRLI */
2373 lpfc_els_abort(phba, ndlp);
2374
2375 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2376 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2377 spin_lock_irq(shost->host_lock);
2378 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2379 spin_unlock_irq(shost->host_lock);
2380 lpfc_disc_set_adisc(vport, ndlp);
2381 return ndlp->nlp_state;
2382 }
2383
2384 static uint32_t
2385 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2386 void *arg, uint32_t evt)
2387 {
2388 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2389 struct ls_rjt stat;
2390
2391 memset(&stat, 0, sizeof(struct ls_rjt));
2392 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2393 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2394 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2395 return ndlp->nlp_state;
2396 }
2397
2398 static uint32_t
2399 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2400 void *arg, uint32_t evt)
2401 {
2402 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2403 struct ls_rjt stat;
2404
2405 memset(&stat, 0, sizeof(struct ls_rjt));
2406 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2407 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2408 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2409 return ndlp->nlp_state;
2410 }
2411
2412 static uint32_t
2413 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2414 void *arg, uint32_t evt)
2415 {
2416 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2417 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2418
2419 spin_lock_irq(shost->host_lock);
2420 ndlp->nlp_flag |= NLP_LOGO_ACC;
2421 spin_unlock_irq(shost->host_lock);
2422 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2423 return ndlp->nlp_state;
2424 }
2425
2426 static uint32_t
2427 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2428 void *arg, uint32_t evt)
2429 {
2430 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2431 struct ls_rjt stat;
2432
2433 memset(&stat, 0, sizeof(struct ls_rjt));
2434 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2435 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2436 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2437 return ndlp->nlp_state;
2438 }
2439
2440 static uint32_t
2441 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2442 void *arg, uint32_t evt)
2443 {
2444 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2445 struct ls_rjt stat;
2446
2447 memset(&stat, 0, sizeof(struct ls_rjt));
2448 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2449 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2450 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2451 return ndlp->nlp_state;
2452 }
2453
2454 static uint32_t
2455 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2456 void *arg, uint32_t evt)
2457 {
2458 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2459
2460 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
2461 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2462 spin_lock_irq(shost->host_lock);
2463 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2464 spin_unlock_irq(shost->host_lock);
2465 lpfc_disc_set_adisc(vport, ndlp);
2466 return ndlp->nlp_state;
2467 }
2468
2469 static uint32_t
2470 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2471 void *arg, uint32_t evt)
2472 {
2473 /*
2474 * DevLoss has timed out and is calling for Device Remove.
2475 * In this case, abort the LOGO and cleanup the ndlp
2476 */
2477
2478 lpfc_unreg_rpi(vport, ndlp);
2479 /* software abort outstanding PLOGI */
2480 lpfc_els_abort(vport->phba, ndlp);
2481 lpfc_drop_node(vport, ndlp);
2482 return NLP_STE_FREED_NODE;
2483 }
2484
2485 static uint32_t
2486 lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
2487 struct lpfc_nodelist *ndlp,
2488 void *arg, uint32_t evt)
2489 {
2490 /*
2491 * Device Recovery events have no meaning for a node with a LOGO
2492 * outstanding. The LOGO has to complete first and handle the
2493 * node from that point.
2494 */
2495 return ndlp->nlp_state;
2496 }
2497
2498 static uint32_t
2499 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2500 void *arg, uint32_t evt)
2501 {
2502 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2503
2504 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2505 return ndlp->nlp_state;
2506 }
2507
2508 static uint32_t
2509 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2510 void *arg, uint32_t evt)
2511 {
2512 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2513
2514 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
2515 return ndlp->nlp_state;
2516
2517 lpfc_rcv_prli(vport, ndlp, cmdiocb);
2518 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2519 return ndlp->nlp_state;
2520 }
2521
2522 static uint32_t
2523 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2524 void *arg, uint32_t evt)
2525 {
2526 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2527
2528 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2529 return ndlp->nlp_state;
2530 }
2531
2532 static uint32_t
2533 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2534 void *arg, uint32_t evt)
2535 {
2536 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2537
2538 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2539 return ndlp->nlp_state;
2540 }
2541
2542 static uint32_t
2543 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2544 void *arg, uint32_t evt)
2545 {
2546 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2547
2548 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
2549 return ndlp->nlp_state;
2550 }
2551
2552 static uint32_t
2553 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
2554 struct lpfc_nodelist *ndlp,
2555 void *arg,
2556 uint32_t evt)
2557 {
2558 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2559
2560 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2561 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2562 spin_lock_irq(shost->host_lock);
2563 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2564 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
2565 spin_unlock_irq(shost->host_lock);
2566 lpfc_disc_set_adisc(vport, ndlp);
2567
2568 return ndlp->nlp_state;
2569 }
2570
2571 static uint32_t
2572 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2573 void *arg, uint32_t evt)
2574 {
2575 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2576
2577 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2578 return ndlp->nlp_state;
2579 }
2580
2581 static uint32_t
2582 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2583 void *arg, uint32_t evt)
2584 {
2585 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2586
2587 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
2588 return ndlp->nlp_state;
2589 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2590 return ndlp->nlp_state;
2591 }
2592
2593 static uint32_t
2594 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2595 void *arg, uint32_t evt)
2596 {
2597 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2598
2599 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2600 return ndlp->nlp_state;
2601 }
2602
2603 static uint32_t
2604 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2605 struct lpfc_nodelist *ndlp,
2606 void *arg, uint32_t evt)
2607 {
2608 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2609
2610 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2611 return ndlp->nlp_state;
2612 }
2613
2614 static uint32_t
2615 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2616 void *arg, uint32_t evt)
2617 {
2618 struct lpfc_hba *phba = vport->phba;
2619 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2620
2621 /* flush the target */
2622 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING],
2623 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
2624
2625 /* Treat like rcv logo */
2626 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
2627 return ndlp->nlp_state;
2628 }
2629
2630 static uint32_t
2631 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2632 struct lpfc_nodelist *ndlp,
2633 void *arg,
2634 uint32_t evt)
2635 {
2636 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2637
2638 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2639 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2640 spin_lock_irq(shost->host_lock);
2641 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2642 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
2643 spin_unlock_irq(shost->host_lock);
2644 lpfc_disc_set_adisc(vport, ndlp);
2645 return ndlp->nlp_state;
2646 }
2647
2648 static uint32_t
2649 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2650 void *arg, uint32_t evt)
2651 {
2652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2653 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2654
2655 /* Ignore PLOGI if we have an outstanding LOGO */
2656 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
2657 return ndlp->nlp_state;
2658 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
2659 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2660 spin_lock_irq(shost->host_lock);
2661 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2662 spin_unlock_irq(shost->host_lock);
2663 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2664 /* send PLOGI immediately, move to PLOGI issue state */
2665 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2666 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2667 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2668 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2669 }
2670 }
2671 return ndlp->nlp_state;
2672 }
2673
2674 static uint32_t
2675 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2676 void *arg, uint32_t evt)
2677 {
2678 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2679 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2680 struct ls_rjt stat;
2681
2682 memset(&stat, 0, sizeof (struct ls_rjt));
2683 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2684 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2685 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2686
2687 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2688 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2689 spin_lock_irq(shost->host_lock);
2690 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2691 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2692 spin_unlock_irq(shost->host_lock);
2693 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2694 lpfc_issue_els_adisc(vport, ndlp, 0);
2695 } else {
2696 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2697 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2698 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2699 }
2700 }
2701 return ndlp->nlp_state;
2702 }
2703
2704 static uint32_t
2705 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2706 void *arg, uint32_t evt)
2707 {
2708 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2709
2710 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2711 return ndlp->nlp_state;
2712 }
2713
2714 static uint32_t
2715 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2716 void *arg, uint32_t evt)
2717 {
2718 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2719
2720 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2721 /*
2722 * Do not start discovery if discovery is about to start
2723 * or discovery in progress for this node. Starting discovery
2724 * here will affect the counting of discovery threads.
2725 */
2726 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
2727 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2728 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2729 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2730 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2731 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2732 lpfc_issue_els_adisc(vport, ndlp, 0);
2733 } else {
2734 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2735 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2736 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2737 }
2738 }
2739 return ndlp->nlp_state;
2740 }
2741
2742 static uint32_t
2743 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2744 void *arg, uint32_t evt)
2745 {
2746 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2747 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2748
2749 spin_lock_irq(shost->host_lock);
2750 ndlp->nlp_flag |= NLP_LOGO_ACC;
2751 spin_unlock_irq(shost->host_lock);
2752
2753 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2754
2755 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
2756 mod_timer(&ndlp->nlp_delayfunc,
2757 jiffies + msecs_to_jiffies(1000 * 1));
2758 spin_lock_irq(shost->host_lock);
2759 ndlp->nlp_flag |= NLP_DELAY_TMO;
2760 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2761 spin_unlock_irq(shost->host_lock);
2762 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
2763 } else {
2764 spin_lock_irq(shost->host_lock);
2765 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2766 spin_unlock_irq(shost->host_lock);
2767 }
2768 return ndlp->nlp_state;
2769 }
2770
2771 static uint32_t
2772 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2773 void *arg, uint32_t evt)
2774 {
2775 struct lpfc_iocbq *cmdiocb, *rspiocb;
2776 IOCB_t *irsp;
2777 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2778
2779 cmdiocb = (struct lpfc_iocbq *) arg;
2780 rspiocb = cmdiocb->context_un.rsp_iocb;
2781
2782 irsp = &rspiocb->iocb;
2783 if (irsp->ulpStatus) {
2784 spin_lock_irq(shost->host_lock);
2785 ndlp->nlp_flag |= NLP_DEFER_RM;
2786 spin_unlock_irq(shost->host_lock);
2787 return NLP_STE_FREED_NODE;
2788 }
2789 return ndlp->nlp_state;
2790 }
2791
2792 static uint32_t
2793 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2794 void *arg, uint32_t evt)
2795 {
2796 struct lpfc_iocbq *cmdiocb, *rspiocb;
2797 IOCB_t *irsp;
2798
2799 cmdiocb = (struct lpfc_iocbq *) arg;
2800 rspiocb = cmdiocb->context_un.rsp_iocb;
2801
2802 irsp = &rspiocb->iocb;
2803 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2804 lpfc_drop_node(vport, ndlp);
2805 return NLP_STE_FREED_NODE;
2806 }
2807 return ndlp->nlp_state;
2808 }
2809
2810 static uint32_t
2811 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2812 void *arg, uint32_t evt)
2813 {
2814 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2815
2816 /* For the fabric port just clear the fc flags. */
2817 if (ndlp->nlp_DID == Fabric_DID) {
2818 spin_lock_irq(shost->host_lock);
2819 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2820 spin_unlock_irq(shost->host_lock);
2821 }
2822 lpfc_unreg_rpi(vport, ndlp);
2823 return ndlp->nlp_state;
2824 }
2825
2826 static uint32_t
2827 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2828 void *arg, uint32_t evt)
2829 {
2830 struct lpfc_iocbq *cmdiocb, *rspiocb;
2831 IOCB_t *irsp;
2832
2833 cmdiocb = (struct lpfc_iocbq *) arg;
2834 rspiocb = cmdiocb->context_un.rsp_iocb;
2835
2836 irsp = &rspiocb->iocb;
2837 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2838 lpfc_drop_node(vport, ndlp);
2839 return NLP_STE_FREED_NODE;
2840 }
2841 return ndlp->nlp_state;
2842 }
2843
2844 static uint32_t
2845 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2846 struct lpfc_nodelist *ndlp,
2847 void *arg, uint32_t evt)
2848 {
2849 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
2850 MAILBOX_t *mb = &pmb->u.mb;
2851
2852 if (!mb->mbxStatus) {
2853 /* SLI4 ports have preallocated logical rpis. */
2854 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2855 ndlp->nlp_rpi = mb->un.varWords[0];
2856 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
2857 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
2858 lpfc_unreg_rpi(vport, ndlp);
2859 }
2860 } else {
2861 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2862 lpfc_drop_node(vport, ndlp);
2863 return NLP_STE_FREED_NODE;
2864 }
2865 }
2866 return ndlp->nlp_state;
2867 }
2868
2869 static uint32_t
2870 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2871 void *arg, uint32_t evt)
2872 {
2873 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2874
2875 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2876 spin_lock_irq(shost->host_lock);
2877 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2878 spin_unlock_irq(shost->host_lock);
2879 return ndlp->nlp_state;
2880 }
2881 lpfc_drop_node(vport, ndlp);
2882 return NLP_STE_FREED_NODE;
2883 }
2884
2885 static uint32_t
2886 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2887 void *arg, uint32_t evt)
2888 {
2889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2890
2891 /* Don't do anything that will mess up processing of the
2892 * previous RSCN.
2893 */
2894 if (vport->fc_flag & FC_RSCN_DEFERRED)
2895 return ndlp->nlp_state;
2896
2897 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2898 spin_lock_irq(shost->host_lock);
2899 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2900 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
2901 spin_unlock_irq(shost->host_lock);
2902 return ndlp->nlp_state;
2903 }
2904
2905
2906 /* This next section defines the NPort Discovery State Machine */
2907
2908 /* There are 4 different double linked lists nodelist entries can reside on.
2909 * The plogi list and adisc list are used when Link Up discovery or RSCN
2910 * processing is needed. Each list holds the nodes that we will send PLOGI
2911 * or ADISC on. These lists will keep track of what nodes will be effected
2912 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2913 * The unmapped_list will contain all nodes that we have successfully logged
2914 * into at the Fibre Channel level. The mapped_list will contain all nodes
2915 * that are mapped FCP targets.
2916 */
2917 /*
2918 * The bind list is a list of undiscovered (potentially non-existent) nodes
2919 * that we have saved binding information on. This information is used when
2920 * nodes transition from the unmapped to the mapped list.
2921 */
2922 /* For UNUSED_NODE state, the node has just been allocated .
2923 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2924 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2925 * and put on the unmapped list. For ADISC processing, the node is taken off
2926 * the ADISC list and placed on either the mapped or unmapped list (depending
2927 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2928 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2929 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2930 * node, the node is taken off the unmapped list. The binding list is checked
2931 * for a valid binding, or a binding is automatically assigned. If binding
2932 * assignment is unsuccessful, the node is left on the unmapped list. If
2933 * binding assignment is successful, the associated binding list entry (if
2934 * any) is removed, and the node is placed on the mapped list.
2935 */
2936 /*
2937 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
2938 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
2939 * expire, all effected nodes will receive a DEVICE_RM event.
2940 */
2941 /*
2942 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2943 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2944 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2945 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2946 * we will first process the ADISC list. 32 entries are processed initially and
2947 * ADISC is initited for each one. Completions / Events for each node are
2948 * funnelled thru the state machine. As each node finishes ADISC processing, it
2949 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2950 * waiting, and the ADISC list count is identically 0, then we are done. For
2951 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2952 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2953 * list. 32 entries are processed initially and PLOGI is initited for each one.
2954 * Completions / Events for each node are funnelled thru the state machine. As
2955 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2956 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2957 * indentically 0, then we are done. We have now completed discovery / RSCN
2958 * handling. Upon completion, ALL nodes should be on either the mapped or
2959 * unmapped lists.
2960 */
2961
2962 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2963 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
2964 /* Action routine Event Current State */
2965 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2966 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2967 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2968 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2969 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2970 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2971 lpfc_disc_illegal, /* CMPL_PLOGI */
2972 lpfc_disc_illegal, /* CMPL_PRLI */
2973 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2974 lpfc_disc_illegal, /* CMPL_ADISC */
2975 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2976 lpfc_device_rm_unused_node, /* DEVICE_RM */
2977 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
2978
2979 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2980 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2981 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2982 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2983 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2984 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2985 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2986 lpfc_disc_illegal, /* CMPL_PRLI */
2987 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2988 lpfc_disc_illegal, /* CMPL_ADISC */
2989 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2990 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2991 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2992
2993 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2994 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2995 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2996 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2997 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2998 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2999 lpfc_disc_illegal, /* CMPL_PLOGI */
3000 lpfc_disc_illegal, /* CMPL_PRLI */
3001 lpfc_disc_illegal, /* CMPL_LOGO */
3002 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
3003 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3004 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
3005 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
3006
3007 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
3008 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
3009 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
3010 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
3011 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
3012 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
3013 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
3014 lpfc_disc_illegal, /* CMPL_PRLI */
3015 lpfc_disc_illegal, /* CMPL_LOGO */
3016 lpfc_disc_illegal, /* CMPL_ADISC */
3017 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
3018 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
3019 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
3020
3021 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
3022 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
3023 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
3024 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
3025 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
3026 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
3027 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
3028 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
3029 lpfc_disc_illegal, /* CMPL_LOGO */
3030 lpfc_disc_illegal, /* CMPL_ADISC */
3031 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3032 lpfc_device_rm_prli_issue, /* DEVICE_RM */
3033 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
3034
3035 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
3036 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
3037 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
3038 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
3039 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
3040 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
3041 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
3042 lpfc_disc_illegal, /* CMPL_PRLI */
3043 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
3044 lpfc_disc_illegal, /* CMPL_ADISC */
3045 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3046 lpfc_device_rm_logo_issue, /* DEVICE_RM */
3047 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
3048
3049 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
3050 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
3051 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
3052 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
3053 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
3054 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
3055 lpfc_disc_illegal, /* CMPL_PLOGI */
3056 lpfc_disc_illegal, /* CMPL_PRLI */
3057 lpfc_disc_illegal, /* CMPL_LOGO */
3058 lpfc_disc_illegal, /* CMPL_ADISC */
3059 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3060 lpfc_disc_illegal, /* DEVICE_RM */
3061 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
3062
3063 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
3064 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
3065 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
3066 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
3067 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
3068 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
3069 lpfc_disc_illegal, /* CMPL_PLOGI */
3070 lpfc_disc_illegal, /* CMPL_PRLI */
3071 lpfc_disc_illegal, /* CMPL_LOGO */
3072 lpfc_disc_illegal, /* CMPL_ADISC */
3073 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3074 lpfc_disc_illegal, /* DEVICE_RM */
3075 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
3076
3077 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
3078 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
3079 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
3080 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
3081 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
3082 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
3083 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
3084 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
3085 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
3086 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
3087 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
3088 lpfc_device_rm_npr_node, /* DEVICE_RM */
3089 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
3090 };
3091
3092 int
3093 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3094 void *arg, uint32_t evt)
3095 {
3096 uint32_t cur_state, rc;
3097 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
3098 uint32_t);
3099 uint32_t got_ndlp = 0;
3100 uint32_t data1;
3101
3102 if (lpfc_nlp_get(ndlp))
3103 got_ndlp = 1;
3104
3105 cur_state = ndlp->nlp_state;
3106
3107 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
3108 ((uint32_t)ndlp->nlp_type));
3109 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
3110 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3111 "0211 DSM in event x%x on NPort x%x in "
3112 "state %d rpi x%x Data: x%x x%x\n",
3113 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi,
3114 ndlp->nlp_flag, data1);
3115
3116 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
3117 "DSM in: evt:%d ste:%d did:x%x",
3118 evt, cur_state, ndlp->nlp_DID);
3119
3120 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
3121 rc = (func) (vport, ndlp, arg, evt);
3122
3123 /* DSM out state <rc> on NPort <nlp_DID> */
3124 if (got_ndlp) {
3125 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
3126 ((uint32_t)ndlp->nlp_type));
3127 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3128 "0212 DSM out state %d on NPort x%x "
3129 "rpi x%x Data: x%x x%x\n",
3130 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag,
3131 data1);
3132
3133 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
3134 "DSM out: ste:%d did:x%x flg:x%x",
3135 rc, ndlp->nlp_DID, ndlp->nlp_flag);
3136 /* Decrement the ndlp reference count held for this function */
3137 lpfc_nlp_put(ndlp);
3138 } else {
3139 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3140 "0213 DSM out state %d on NPort free\n", rc);
3141
3142 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
3143 "DSM out: ste:%d did:x%x flg:x%x",
3144 rc, 0, 0);
3145 }
3146
3147 return rc;
3148 }
Linux with added FPC-III support