1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2024 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 "lpfc_hw4.h"
36#include "lpfc_hw.h"
37#include "lpfc_sli.h"
38#include "lpfc_sli4.h"
39#include "lpfc_nl.h"
40#include "lpfc_disc.h"
41#include "lpfc.h"
42#include "lpfc_scsi.h"
43#include "lpfc_nvme.h"
44#include "lpfc_logmsg.h"
45#include "lpfc_crtn.h"
46#include "lpfc_vport.h"
47#include "lpfc_debugfs.h"
48
49
50/* Called to verify a rcv'ed ADISC was intended for us. */
51static int
52lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
53 struct lpfc_name *nn, struct lpfc_name *pn)
54{
55 /* First, we MUST have a RPI registered */
56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
57 return 0;
58
59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
60 * table entry for that node.
61 */
62 if (memcmp(p: nn, q: &ndlp->nlp_nodename, size: sizeof (struct lpfc_name)))
63 return 0;
64
65 if (memcmp(p: pn, q: &ndlp->nlp_portname, size: sizeof (struct lpfc_name)))
66 return 0;
67
68 /* we match, return success */
69 return 1;
70}
71
72int
73lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
74 struct serv_parm *sp, uint32_t class, int flogi)
75{
76 volatile struct serv_parm *hsp = &vport->fc_sparam;
77 uint16_t hsp_value, ssp_value = 0;
78
79 /*
80 * The receive data field size and buffer-to-buffer receive data field
81 * size entries are 16 bits but are represented as two 8-bit fields in
82 * the driver data structure to account for rsvd bits and other control
83 * bits. Reconstruct and compare the fields as a 16-bit values before
84 * correcting the byte values.
85 */
86 if (sp->cls1.classValid) {
87 if (!flogi) {
88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
89 hsp->cls1.rcvDataSizeLsb);
90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
91 sp->cls1.rcvDataSizeLsb);
92 if (!ssp_value)
93 goto bad_service_param;
94 if (ssp_value > hsp_value) {
95 sp->cls1.rcvDataSizeLsb =
96 hsp->cls1.rcvDataSizeLsb;
97 sp->cls1.rcvDataSizeMsb =
98 hsp->cls1.rcvDataSizeMsb;
99 }
100 }
101 } else if (class == CLASS1)
102 goto bad_service_param;
103 if (sp->cls2.classValid) {
104 if (!flogi) {
105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
106 hsp->cls2.rcvDataSizeLsb);
107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
108 sp->cls2.rcvDataSizeLsb);
109 if (!ssp_value)
110 goto bad_service_param;
111 if (ssp_value > hsp_value) {
112 sp->cls2.rcvDataSizeLsb =
113 hsp->cls2.rcvDataSizeLsb;
114 sp->cls2.rcvDataSizeMsb =
115 hsp->cls2.rcvDataSizeMsb;
116 }
117 }
118 } else if (class == CLASS2)
119 goto bad_service_param;
120 if (sp->cls3.classValid) {
121 if (!flogi) {
122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
123 hsp->cls3.rcvDataSizeLsb);
124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
125 sp->cls3.rcvDataSizeLsb);
126 if (!ssp_value)
127 goto bad_service_param;
128 if (ssp_value > hsp_value) {
129 sp->cls3.rcvDataSizeLsb =
130 hsp->cls3.rcvDataSizeLsb;
131 sp->cls3.rcvDataSizeMsb =
132 hsp->cls3.rcvDataSizeMsb;
133 }
134 }
135 } else if (class == CLASS3)
136 goto bad_service_param;
137
138 /*
139 * Preserve the upper four bits of the MSB from the PLOGI response.
140 * These bits contain the Buffer-to-Buffer State Change Number
141 * from the target and need to be passed to the FW.
142 */
143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
145 if (ssp_value > hsp_value) {
146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
148 (hsp->cmn.bbRcvSizeMsb & 0x0F);
149 }
150
151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
153 return 1;
154bad_service_param:
155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
156 "0207 Device %x "
157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
158 "invalid service parameters. Ignoring device.\n",
159 ndlp->nlp_DID,
160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
164 return 0;
165}
166
167static void *
168lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
169 struct lpfc_iocbq *rspiocb)
170{
171 struct lpfc_dmabuf *pcmd, *prsp;
172 uint32_t *lp;
173 void *ptr = NULL;
174 u32 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
175
176 pcmd = cmdiocb->cmd_dmabuf;
177
178 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay
179 * freeing associated memory till after ABTS completes.
180 */
181 if (pcmd) {
182 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
183 list);
184 if (prsp) {
185 lp = (uint32_t *) prsp->virt;
186 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
187 }
188 } else {
189 /* Force ulp_status error since we are returning NULL ptr */
190 if (!(ulp_status)) {
191 if (phba->sli_rev == LPFC_SLI_REV4) {
192 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl,
193 IOSTAT_LOCAL_REJECT);
194 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED;
195 } else {
196 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
197 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED;
198 }
199 }
200 ptr = NULL;
201 }
202 return ptr;
203}
204
205
206
207/*
208 * Free resources / clean up outstanding I/Os
209 * associated with a LPFC_NODELIST entry. This
210 * routine effectively results in a "software abort".
211 */
212void
213lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
214{
215 LIST_HEAD(abort_list);
216 struct lpfc_sli_ring *pring;
217 struct lpfc_iocbq *iocb, *next_iocb;
218
219 pring = lpfc_phba_elsring(phba);
220
221 /* In case of error recovery path, we might have a NULL pring here */
222 if (unlikely(!pring))
223 return;
224
225 /* Abort outstanding I/O on NPort <nlp_DID> */
226 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
227 "2819 Abort outstanding I/O on NPort x%x "
228 "Data: x%x x%x x%x\n",
229 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
230 ndlp->nlp_rpi);
231 /* Clean up all fabric IOs first.*/
232 lpfc_fabric_abort_nport(ndlp);
233
234 /*
235 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list
236 * of all ELS IOs that need an ABTS. The IOs need to stay on the
237 * txcmplq so that the abort operation completes them successfully.
238 */
239 spin_lock_irq(lock: &phba->hbalock);
240 if (phba->sli_rev == LPFC_SLI_REV4)
241 spin_lock(lock: &pring->ring_lock);
242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
243 /* Add to abort_list on on NDLP match. */
244 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
245 list_add_tail(new: &iocb->dlist, head: &abort_list);
246 }
247 if (phba->sli_rev == LPFC_SLI_REV4)
248 spin_unlock(lock: &pring->ring_lock);
249 spin_unlock_irq(lock: &phba->hbalock);
250
251 /* Abort the targeted IOs and remove them from the abort list. */
252 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
253 spin_lock_irq(lock: &phba->hbalock);
254 list_del_init(entry: &iocb->dlist);
255 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
256 spin_unlock_irq(lock: &phba->hbalock);
257 }
258 /* Make sure HBA is alive */
259 lpfc_issue_hb_tmo(phba);
260
261 INIT_LIST_HEAD(list: &abort_list);
262
263 /* Now process the txq */
264 spin_lock_irq(lock: &phba->hbalock);
265 if (phba->sli_rev == LPFC_SLI_REV4)
266 spin_lock(lock: &pring->ring_lock);
267
268 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
269 /* Check to see if iocb matches the nport we are looking for */
270 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
271 list_del_init(entry: &iocb->list);
272 list_add_tail(new: &iocb->list, head: &abort_list);
273 }
274 }
275
276 if (phba->sli_rev == LPFC_SLI_REV4)
277 spin_unlock(lock: &pring->ring_lock);
278 spin_unlock_irq(lock: &phba->hbalock);
279
280 /* Cancel all the IOCBs from the completions list */
281 lpfc_sli_cancel_iocbs(phba, &abort_list,
282 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
283
284 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
285}
286
287/* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes
288 * @phba: pointer to lpfc hba data structure.
289 * @login_mbox: pointer to REG_RPI mailbox object
290 *
291 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes
292 */
293static void
294lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox)
295{
296 struct lpfc_iocbq *save_iocb;
297 struct lpfc_nodelist *ndlp;
298 MAILBOX_t *mb = &login_mbox->u.mb;
299
300 int rc;
301
302 ndlp = login_mbox->ctx_ndlp;
303 save_iocb = login_mbox->ctx_u.save_iocb;
304
305 if (mb->mbxStatus == MBX_SUCCESS) {
306 /* Now that REG_RPI completed successfully,
307 * we can now proceed with sending the PLOGI ACC.
308 */
309 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI,
310 save_iocb, ndlp, NULL);
311 if (rc) {
312 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
313 "4576 PLOGI ACC fails pt2pt discovery: "
314 "DID %x Data: %x\n", ndlp->nlp_DID, rc);
315 }
316 }
317
318 /* Now process the REG_RPI cmpl */
319 lpfc_mbx_cmpl_reg_login(phba, login_mbox);
320 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
321 kfree(objp: save_iocb);
322}
323
324static int
325lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
326 struct lpfc_iocbq *cmdiocb)
327{
328 struct lpfc_hba *phba = vport->phba;
329 struct lpfc_dmabuf *pcmd;
330 uint64_t nlp_portwwn = 0;
331 uint32_t *lp;
332 union lpfc_wqe128 *wqe;
333 IOCB_t *icmd;
334 struct serv_parm *sp;
335 uint32_t ed_tov;
336 LPFC_MBOXQ_t *link_mbox;
337 LPFC_MBOXQ_t *login_mbox;
338 struct lpfc_iocbq *save_iocb;
339 struct ls_rjt stat;
340 uint32_t vid, flag;
341 int rc;
342 u32 remote_did;
343
344 memset(&stat, 0, sizeof (struct ls_rjt));
345 pcmd = cmdiocb->cmd_dmabuf;
346 lp = (uint32_t *) pcmd->virt;
347 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
348 if (wwn_to_u64(wwn: sp->portName.u.wwn) == 0) {
349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
350 "0140 PLOGI Reject: invalid pname\n");
351 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
352 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
353 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
354 NULL);
355 return 0;
356 }
357 if (wwn_to_u64(wwn: sp->nodeName.u.wwn) == 0) {
358 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
359 "0141 PLOGI Reject: invalid nname\n");
360 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
361 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
362 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
363 NULL);
364 return 0;
365 }
366
367 nlp_portwwn = wwn_to_u64(wwn: ndlp->nlp_portname.u.wwn);
368 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, flogi: 0) == 0)) {
369 /* Reject this request because invalid parameters */
370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
371 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
372 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
373 NULL);
374 return 0;
375 }
376
377 if (phba->sli_rev == LPFC_SLI_REV4)
378 wqe = &cmdiocb->wqe;
379 else
380 icmd = &cmdiocb->iocb;
381
382 /* PLOGI chkparm OK */
383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
384 "0114 PLOGI chkparm OK Data: x%x x%x x%x "
385 "x%x x%x x%lx\n",
386 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
387 ndlp->nlp_rpi, vport->port_state,
388 vport->fc_flag);
389
390 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
391 ndlp->nlp_fcp_info |= CLASS2;
392 else
393 ndlp->nlp_fcp_info |= CLASS3;
394
395 ndlp->nlp_class_sup = 0;
396 if (sp->cls1.classValid)
397 ndlp->nlp_class_sup |= FC_COS_CLASS1;
398 if (sp->cls2.classValid)
399 ndlp->nlp_class_sup |= FC_COS_CLASS2;
400 if (sp->cls3.classValid)
401 ndlp->nlp_class_sup |= FC_COS_CLASS3;
402 if (sp->cls4.classValid)
403 ndlp->nlp_class_sup |= FC_COS_CLASS4;
404 ndlp->nlp_maxframe =
405 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
406 /* if already logged in, do implicit logout */
407 switch (ndlp->nlp_state) {
408 case NLP_STE_NPR_NODE:
409 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
410 break;
411 fallthrough;
412 case NLP_STE_REG_LOGIN_ISSUE:
413 case NLP_STE_PRLI_ISSUE:
414 case NLP_STE_UNMAPPED_NODE:
415 case NLP_STE_MAPPED_NODE:
416 /* For initiators, lpfc_plogi_confirm_nport skips fabric did.
417 * For target mode, execute implicit logo.
418 * Fabric nodes go into NPR.
419 */
420 if (!(ndlp->nlp_type & NLP_FABRIC) &&
421 !(phba->nvmet_support)) {
422 /* Clear ndlp info, since follow up PRLI may have
423 * updated ndlp information
424 */
425 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
426 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
427 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
428 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
429 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
430
431 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
432 ndlp, NULL);
433 return 1;
434 }
435 if (nlp_portwwn != 0 &&
436 nlp_portwwn != wwn_to_u64(wwn: sp->portName.u.wwn))
437 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
438 "0143 PLOGI recv'd from DID: x%x "
439 "WWPN changed: old %llx new %llx\n",
440 ndlp->nlp_DID,
441 (unsigned long long)nlp_portwwn,
442 (unsigned long long)
443 wwn_to_u64(sp->portName.u.wwn));
444
445 /* Notify transport of connectivity loss to trigger cleanup. */
446 if (phba->nvmet_support &&
447 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
448 lpfc_nvmet_invalidate_host(phba, ndlp);
449
450 ndlp->nlp_prev_state = ndlp->nlp_state;
451 /* rport needs to be unregistered first */
452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
453 break;
454 }
455
456 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
457 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
458 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
459 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
460 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
461
462 login_mbox = NULL;
463 link_mbox = NULL;
464 save_iocb = NULL;
465
466 /* Check for Nport to NPort pt2pt protocol */
467 if (test_bit(FC_PT2PT, &vport->fc_flag) &&
468 !test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) {
469 /* rcv'ed PLOGI decides what our NPortId will be */
470 if (phba->sli_rev == LPFC_SLI_REV4) {
471 vport->fc_myDID = bf_get(els_rsp64_sid,
472 &cmdiocb->wqe.xmit_els_rsp);
473 } else {
474 vport->fc_myDID = icmd->un.rcvels.parmRo;
475 }
476
477 /* If there is an outstanding FLOGI, abort it now.
478 * The remote NPort is not going to ACC our FLOGI
479 * if its already issuing a PLOGI for pt2pt mode.
480 * This indicates our FLOGI was dropped; however, we
481 * must have ACCed the remote NPorts FLOGI to us
482 * to make it here.
483 */
484 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING)
485 lpfc_els_abort_flogi(phba);
486
487 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
488 if (sp->cmn.edtovResolution) {
489 /* E_D_TOV ticks are in nanoseconds */
490 ed_tov = (phba->fc_edtov + 999999) / 1000000;
491 }
492
493 /*
494 * For pt-to-pt, use the larger EDTOV
495 * RATOV = 2 * EDTOV
496 */
497 if (ed_tov > phba->fc_edtov)
498 phba->fc_edtov = ed_tov;
499 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
500
501 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
502
503 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4,
504 * to account for updated TOV's / parameters
505 */
506 if (phba->sli_rev == LPFC_SLI_REV4)
507 lpfc_issue_reg_vfi(vport);
508 else {
509 link_mbox = mempool_alloc(pool: phba->mbox_mem_pool,
510 GFP_KERNEL);
511 if (!link_mbox)
512 goto out;
513 lpfc_config_link(phba, link_mbox);
514 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
515 link_mbox->vport = vport;
516
517 /* The default completion handling for CONFIG_LINK
518 * does not require the ndlp so no reference is needed.
519 */
520 link_mbox->ctx_ndlp = ndlp;
521
522 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT);
523 if (rc == MBX_NOT_FINISHED) {
524 mempool_free(element: link_mbox, pool: phba->mbox_mem_pool);
525 goto out;
526 }
527 }
528
529 lpfc_can_disctmo(vport);
530 }
531
532 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
533 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
534 sp->cmn.valid_vendor_ver_level) {
535 vid = be32_to_cpu(sp->un.vv.vid);
536 flag = be32_to_cpu(sp->un.vv.flags);
537 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP))
538 ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
539 }
540
541 login_mbox = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
542 if (!login_mbox)
543 goto out;
544
545 save_iocb = kzalloc(size: sizeof(*save_iocb), GFP_KERNEL);
546 if (!save_iocb)
547 goto out;
548
549 /* Save info from cmd IOCB to be used in rsp after all mbox completes */
550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb,
551 sizeof(struct lpfc_iocbq));
552
553 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
554 if (phba->sli_rev == LPFC_SLI_REV4)
555 lpfc_unreg_rpi(vport, ndlp);
556
557 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will
558 * always be deferring the ACC.
559 */
560 if (phba->sli_rev == LPFC_SLI_REV4)
561 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest);
562 else
563 remote_did = icmd->un.rcvels.remoteID;
564 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did,
565 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi);
566 if (rc)
567 goto out;
568
569 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
570 login_mbox->vport = vport;
571
572 /*
573 * If there is an outstanding PLOGI issued, abort it before
574 * sending ACC rsp for received PLOGI. If pending plogi
575 * is not canceled here, the plogi will be rejected by
576 * remote port and will be retried. On a configuration with
577 * single discovery thread, this will cause a huge delay in
578 * discovery. Also this will cause multiple state machines
579 * running in parallel for this node.
580 * This only applies to a fabric environment.
581 */
582 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) &&
583 test_bit(FC_FABRIC, &vport->fc_flag)) {
584 /* software abort outstanding PLOGI */
585 lpfc_els_abort(phba, ndlp);
586 }
587
588 if ((vport->port_type == LPFC_NPIV_PORT &&
589 vport->cfg_restrict_login)) {
590
591 /* no deferred ACC */
592 kfree(objp: save_iocb);
593
594 /* This is an NPIV SLI4 instance that does not need to register
595 * a default RPI.
596 */
597 if (phba->sli_rev == LPFC_SLI_REV4) {
598 lpfc_mbox_rsrc_cleanup(phba, mbox: login_mbox,
599 locked: MBOX_THD_UNLOCKED);
600 login_mbox = NULL;
601 } else {
602 /* In order to preserve RPIs, we want to cleanup
603 * the default RPI the firmware created to rcv
604 * this ELS request. The only way to do this is
605 * to register, then unregister the RPI.
606 */
607 spin_lock_irq(lock: &ndlp->lock);
608 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN |
609 NLP_RCV_PLOGI);
610 spin_unlock_irq(lock: &ndlp->lock);
611 }
612
613 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
614 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
615 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
616 ndlp, login_mbox);
617 if (rc && login_mbox)
618 lpfc_mbox_rsrc_cleanup(phba, mbox: login_mbox,
619 locked: MBOX_THD_UNLOCKED);
620 return 1;
621 }
622
623 /* So the order here should be:
624 * SLI3 pt2pt
625 * Issue CONFIG_LINK mbox
626 * CONFIG_LINK cmpl
627 * SLI4 pt2pt
628 * Issue REG_VFI mbox
629 * REG_VFI cmpl
630 * SLI4
631 * Issue UNREG RPI mbx
632 * UNREG RPI cmpl
633 * Issue REG_RPI mbox
634 * REG RPI cmpl
635 * Issue PLOGI ACC
636 * PLOGI ACC cmpl
637 */
638 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc;
639 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
640 if (!login_mbox->ctx_ndlp)
641 goto out;
642
643 login_mbox->ctx_u.save_iocb = save_iocb; /* For PLOGI ACC */
644
645 spin_lock_irq(lock: &ndlp->lock);
646 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
647 spin_unlock_irq(lock: &ndlp->lock);
648
649 /* Start the ball rolling by issuing REG_LOGIN here */
650 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT);
651 if (rc == MBX_NOT_FINISHED) {
652 lpfc_nlp_put(ndlp);
653 goto out;
654 }
655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
656
657 return 1;
658out:
659 kfree(objp: save_iocb);
660 if (login_mbox)
661 mempool_free(element: login_mbox, pool: phba->mbox_mem_pool);
662
663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
664 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
666 return 0;
667}
668
669/**
670 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
671 * @phba: pointer to lpfc hba data structure.
672 * @mboxq: pointer to mailbox object
673 *
674 * This routine is invoked to issue a completion to a rcv'ed
675 * ADISC or PDISC after the paused RPI has been resumed.
676 **/
677static void
678lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
679{
680 struct lpfc_vport *vport;
681 struct lpfc_iocbq *elsiocb;
682 struct lpfc_nodelist *ndlp;
683 uint32_t cmd;
684
685 elsiocb = mboxq->ctx_u.save_iocb;
686 ndlp = mboxq->ctx_ndlp;
687 vport = mboxq->vport;
688 cmd = elsiocb->drvrTimeout;
689
690 if (cmd == ELS_CMD_ADISC) {
691 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
692 } else {
693 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
694 ndlp, NULL);
695 }
696
697 /* This nlp_put pairs with lpfc_sli4_resume_rpi */
698 lpfc_nlp_put(ndlp);
699
700 kfree(objp: elsiocb);
701 mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
702}
703
704static int
705lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
706 struct lpfc_iocbq *cmdiocb)
707{
708 struct lpfc_hba *phba = vport->phba;
709 struct lpfc_iocbq *elsiocb;
710 struct lpfc_dmabuf *pcmd;
711 struct serv_parm *sp;
712 struct lpfc_name *pnn, *ppn;
713 struct ls_rjt stat;
714 ADISC *ap;
715 uint32_t *lp;
716 uint32_t cmd;
717
718 pcmd = cmdiocb->cmd_dmabuf;
719 lp = (uint32_t *) pcmd->virt;
720
721 cmd = *lp++;
722 if (cmd == ELS_CMD_ADISC) {
723 ap = (ADISC *) lp;
724 pnn = (struct lpfc_name *) & ap->nodeName;
725 ppn = (struct lpfc_name *) & ap->portName;
726 } else {
727 sp = (struct serv_parm *) lp;
728 pnn = (struct lpfc_name *) & sp->nodeName;
729 ppn = (struct lpfc_name *) & sp->portName;
730 }
731
732 if (get_job_ulpstatus(phba, iocbq: cmdiocb) == 0 &&
733 lpfc_check_adisc(vport, ndlp, nn: pnn, pn: ppn)) {
734
735 /*
736 * As soon as we send ACC, the remote NPort can
737 * start sending us data. Thus, for SLI4 we must
738 * resume the RPI before the ACC goes out.
739 */
740 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
741 elsiocb = kmalloc(size: sizeof(struct lpfc_iocbq),
742 GFP_KERNEL);
743 if (elsiocb) {
744 /* Save info from cmd IOCB used in rsp */
745 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
746 sizeof(struct lpfc_iocbq));
747
748 /* Save the ELS cmd */
749 elsiocb->drvrTimeout = cmd;
750
751 if (lpfc_sli4_resume_rpi(ndlp,
752 cmpl: lpfc_mbx_cmpl_resume_rpi,
753 iocbq: elsiocb))
754 kfree(objp: elsiocb);
755 goto out;
756 }
757 }
758
759 if (cmd == ELS_CMD_ADISC) {
760 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
761 } else {
762 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
763 ndlp, NULL);
764 }
765out:
766 /* If we are authenticated, move to the proper state.
767 * It is possible an ADISC arrived and the remote nport
768 * is already in MAPPED or UNMAPPED state. Catch this
769 * condition and don't set the nlp_state again because
770 * it causes an unnecessary transport unregister/register.
771 *
772 * Nodes marked for ADISC will move MAPPED or UNMAPPED state
773 * after issuing ADISC
774 */
775 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) {
776 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) &&
777 !(ndlp->nlp_flag & NLP_NPR_ADISC))
778 lpfc_nlp_set_state(vport, ndlp,
779 NLP_STE_MAPPED_NODE);
780 }
781
782 return 1;
783 }
784 /* Reject this request because invalid parameters */
785 stat.un.b.lsRjtRsvd0 = 0;
786 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
787 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
788 stat.un.b.vendorUnique = 0;
789 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
790
791 /* 1 sec timeout */
792 mod_timer(timer: &ndlp->nlp_delayfunc, expires: jiffies + msecs_to_jiffies(m: 1000));
793
794 spin_lock_irq(lock: &ndlp->lock);
795 ndlp->nlp_flag |= NLP_DELAY_TMO;
796 spin_unlock_irq(lock: &ndlp->lock);
797 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
798 ndlp->nlp_prev_state = ndlp->nlp_state;
799 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
800 return 0;
801}
802
803static int
804(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
805 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
806{
807 struct lpfc_hba *phba = vport->phba;
808 struct lpfc_vport **vports;
809 int i, active_vlink_present = 0 ;
810
811 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
812 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
813 * PLOGIs during LOGO storms from a device.
814 */
815 spin_lock_irq(lock: &ndlp->lock);
816 ndlp->nlp_flag |= NLP_LOGO_ACC;
817 spin_unlock_irq(lock: &ndlp->lock);
818 if (els_cmd == ELS_CMD_PRLO)
819 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
820 else
821 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
822
823 /* This clause allows the initiator to ACC the LOGO back to the
824 * Fabric Domain Controller. It does deliberately skip all other
825 * steps because some fabrics send RDP requests after logging out
826 * from the initiator.
827 */
828 if (ndlp->nlp_type & NLP_FABRIC &&
829 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK))
830 return 0;
831
832 /* Notify transport of connectivity loss to trigger cleanup. */
833 if (phba->nvmet_support &&
834 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
835 lpfc_nvmet_invalidate_host(phba, ndlp);
836
837 if (ndlp->nlp_DID == Fabric_DID) {
838 if (vport->port_state <= LPFC_FDISC ||
839 test_bit(FC_PT2PT, &vport->fc_flag))
840 goto out;
841 lpfc_linkdown_port(vport);
842 set_bit(nr: FC_VPORT_LOGO_RCVD, addr: &vport->fc_flag);
843 vports = lpfc_create_vport_work_array(phba);
844 if (vports) {
845 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
846 i++) {
847 if (!test_bit(FC_VPORT_LOGO_RCVD,
848 &vports[i]->fc_flag) &&
849 vports[i]->port_state > LPFC_FDISC) {
850 active_vlink_present = 1;
851 break;
852 }
853 }
854 lpfc_destroy_vport_work_array(phba, vports);
855 }
856
857 /*
858 * Don't re-instantiate if vport is marked for deletion.
859 * If we are here first then vport_delete is going to wait
860 * for discovery to complete.
861 */
862 if (!test_bit(FC_UNLOADING, &vport->load_flag) &&
863 active_vlink_present) {
864 /*
865 * If there are other active VLinks present,
866 * re-instantiate the Vlink using FDISC.
867 */
868 mod_timer(timer: &ndlp->nlp_delayfunc,
869 expires: jiffies + msecs_to_jiffies(m: 1000));
870 spin_lock_irq(lock: &ndlp->lock);
871 ndlp->nlp_flag |= NLP_DELAY_TMO;
872 spin_unlock_irq(lock: &ndlp->lock);
873 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
874 vport->port_state = LPFC_FDISC;
875 } else {
876 clear_bit(nr: FC_LOGO_RCVD_DID_CHNG, addr: &phba->pport->fc_flag);
877 lpfc_retry_pport_discovery(phba);
878 }
879 } else {
880 lpfc_printf_vlog(vport, KERN_INFO,
881 LOG_NODE | LOG_ELS | LOG_DISCOVERY,
882 "3203 LOGO recover nport x%06x state x%x "
883 "ntype x%x fc_flag x%lx\n",
884 ndlp->nlp_DID, ndlp->nlp_state,
885 ndlp->nlp_type, vport->fc_flag);
886
887 /* Special cases for rports that recover post LOGO. */
888 if ((!(ndlp->nlp_type == NLP_FABRIC) &&
889 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) ||
890 test_bit(FC_PT2PT, &vport->fc_flag))) ||
891 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE ||
892 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) {
893 mod_timer(timer: &ndlp->nlp_delayfunc,
894 expires: jiffies + msecs_to_jiffies(m: 1000 * 1));
895 spin_lock_irq(lock: &ndlp->lock);
896 ndlp->nlp_flag |= NLP_DELAY_TMO;
897 spin_unlock_irq(lock: &ndlp->lock);
898 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
899 lpfc_printf_vlog(vport, KERN_INFO,
900 LOG_NODE | LOG_ELS | LOG_DISCOVERY,
901 "3204 Start nlpdelay on DID x%06x "
902 "nflag x%x lastels x%x ref cnt %u",
903 ndlp->nlp_DID, ndlp->nlp_flag,
904 ndlp->nlp_last_elscmd,
905 kref_read(&ndlp->kref));
906 }
907 }
908out:
909 /* Unregister from backend, could have been skipped due to ADISC */
910 lpfc_nlp_unreg_node(vport, ndlp);
911
912 ndlp->nlp_prev_state = ndlp->nlp_state;
913 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
914
915 spin_lock_irq(lock: &ndlp->lock);
916 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
917 spin_unlock_irq(lock: &ndlp->lock);
918 /* The driver has to wait until the ACC completes before it continues
919 * processing the LOGO. The action will resume in
920 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
921 * unreg_login, the driver waits so the ACC does not get aborted.
922 */
923 return 0;
924}
925
926static uint32_t
927lpfc_rcv_prli_support_check(struct lpfc_vport *vport,
928 struct lpfc_nodelist *ndlp,
929 struct lpfc_iocbq *cmdiocb)
930{
931 struct ls_rjt stat;
932 uint32_t *payload;
933 uint32_t cmd;
934 PRLI *npr;
935
936 payload = cmdiocb->cmd_dmabuf->virt;
937 cmd = *payload;
938 npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t));
939
940 if (vport->phba->nvmet_support) {
941 /* Must be a NVME PRLI */
942 if (cmd == ELS_CMD_PRLI)
943 goto out;
944 } else {
945 /* Initiator mode. */
946 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI))
947 goto out;
948
949 /* NPIV ports will RJT initiator only functions */
950 if (vport->port_type == LPFC_NPIV_PORT &&
951 npr->initiatorFunc && !npr->targetFunc)
952 goto out;
953 }
954 return 1;
955out:
956 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
957 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d "
958 "state x%x flags x%x port_type: x%x "
959 "npr->initfcn: x%x npr->tgtfcn: x%x\n",
960 cmd, ndlp->nlp_rpi, ndlp->nlp_state,
961 ndlp->nlp_flag, vport->port_type,
962 npr->initiatorFunc, npr->targetFunc);
963 memset(&stat, 0, sizeof(struct ls_rjt));
964 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED;
965 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED;
966 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
967 ndlp, NULL);
968 return 0;
969}
970
971static void
972lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
973 struct lpfc_iocbq *cmdiocb)
974{
975 struct lpfc_hba *phba = vport->phba;
976 struct lpfc_dmabuf *pcmd;
977 uint32_t *lp;
978 PRLI *npr;
979 struct fc_rport *rport = ndlp->rport;
980 u32 roles;
981
982 pcmd = cmdiocb->cmd_dmabuf;
983 lp = (uint32_t *)pcmd->virt;
984 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t));
985
986 if ((npr->prliType == PRLI_FCP_TYPE) ||
987 (npr->prliType == PRLI_NVME_TYPE)) {
988 if (npr->initiatorFunc) {
989 if (npr->prliType == PRLI_FCP_TYPE)
990 ndlp->nlp_type |= NLP_FCP_INITIATOR;
991 if (npr->prliType == PRLI_NVME_TYPE)
992 ndlp->nlp_type |= NLP_NVME_INITIATOR;
993 }
994 if (npr->targetFunc) {
995 if (npr->prliType == PRLI_FCP_TYPE)
996 ndlp->nlp_type |= NLP_FCP_TARGET;
997 if (npr->prliType == PRLI_NVME_TYPE)
998 ndlp->nlp_type |= NLP_NVME_TARGET;
999 if (npr->writeXferRdyDis)
1000 ndlp->nlp_flag |= NLP_FIRSTBURST;
1001 }
1002 if (npr->Retry && ndlp->nlp_type &
1003 (NLP_FCP_INITIATOR | NLP_FCP_TARGET))
1004 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1005
1006 if (npr->Retry && phba->nsler &&
1007 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET))
1008 ndlp->nlp_nvme_info |= NLP_NVME_NSLER;
1009
1010
1011 /* If this driver is in nvme target mode, set the ndlp's fc4
1012 * type to NVME provided the PRLI response claims NVME FC4
1013 * type. Target mode does not issue gft_id so doesn't get
1014 * the fc4 type set until now.
1015 */
1016 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) {
1017 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
1018 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1019 }
1020
1021 /* Fabric Controllers send FCP PRLI as an initiator but should
1022 * not get recognized as FCP type and registered with transport.
1023 */
1024 if (npr->prliType == PRLI_FCP_TYPE &&
1025 !(ndlp->nlp_type & NLP_FABRIC))
1026 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1027 }
1028 if (rport) {
1029 /* We need to update the rport role values */
1030 roles = FC_RPORT_ROLE_UNKNOWN;
1031 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1032 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1033 if (ndlp->nlp_type & NLP_FCP_TARGET)
1034 roles |= FC_RPORT_ROLE_FCP_TARGET;
1035
1036 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1037 "rport rolechg: role:x%x did:x%x flg:x%x",
1038 roles, ndlp->nlp_DID, ndlp->nlp_flag);
1039
1040 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1041 fc_remote_port_rolechg(rport, roles);
1042 }
1043}
1044
1045static uint32_t
1046lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1047{
1048 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
1049 spin_lock_irq(lock: &ndlp->lock);
1050 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1051 spin_unlock_irq(lock: &ndlp->lock);
1052 return 0;
1053 }
1054
1055 if (!test_bit(FC_PT2PT, &vport->fc_flag)) {
1056 /* Check config parameter use-adisc or FCP-2 */
1057 if (vport->cfg_use_adisc &&
1058 (test_bit(FC_RSCN_MODE, &vport->fc_flag) ||
1059 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
1060 (ndlp->nlp_type & NLP_FCP_TARGET)))) {
1061 spin_lock_irq(lock: &ndlp->lock);
1062 ndlp->nlp_flag |= NLP_NPR_ADISC;
1063 spin_unlock_irq(lock: &ndlp->lock);
1064 return 1;
1065 }
1066 }
1067
1068 spin_lock_irq(lock: &ndlp->lock);
1069 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1070 spin_unlock_irq(lock: &ndlp->lock);
1071 lpfc_unreg_rpi(vport, ndlp);
1072 return 0;
1073}
1074
1075/**
1076 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
1077 * @phba : Pointer to lpfc_hba structure.
1078 * @vport: Pointer to lpfc_vport structure.
1079 * @ndlp: Pointer to lpfc_nodelist structure.
1080 * @rpi : rpi to be release.
1081 *
1082 * This function will send a unreg_login mailbox command to the firmware
1083 * to release a rpi.
1084 **/
1085static void
1086lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport,
1087 struct lpfc_nodelist *ndlp, uint16_t rpi)
1088{
1089 LPFC_MBOXQ_t *pmb;
1090 int rc;
1091
1092 /* If there is already an UNREG in progress for this ndlp,
1093 * no need to queue up another one.
1094 */
1095 if (ndlp->nlp_flag & NLP_UNREG_INP) {
1096 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1097 "1435 release_rpi SKIP UNREG x%x on "
1098 "NPort x%x deferred x%x flg x%x "
1099 "Data: x%px\n",
1100 ndlp->nlp_rpi, ndlp->nlp_DID,
1101 ndlp->nlp_defer_did,
1102 ndlp->nlp_flag, ndlp);
1103 return;
1104 }
1105
1106 pmb = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool,
1107 GFP_KERNEL);
1108 if (!pmb)
1109 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1110 "2796 mailbox memory allocation failed \n");
1111 else {
1112 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
1113 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1114 pmb->vport = vport;
1115 pmb->ctx_ndlp = lpfc_nlp_get(ndlp);
1116 if (!pmb->ctx_ndlp) {
1117 mempool_free(element: pmb, pool: phba->mbox_mem_pool);
1118 return;
1119 }
1120
1121 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
1122 (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag)))
1123 ndlp->nlp_flag |= NLP_UNREG_INP;
1124
1125 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1126 "1437 release_rpi UNREG x%x "
1127 "on NPort x%x flg x%x\n",
1128 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag);
1129
1130 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1131 if (rc == MBX_NOT_FINISHED) {
1132 lpfc_nlp_put(ndlp);
1133 mempool_free(element: pmb, pool: phba->mbox_mem_pool);
1134 }
1135 }
1136}
1137
1138static uint32_t
1139lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1140 void *arg, uint32_t evt)
1141{
1142 struct lpfc_hba *phba;
1143 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1144 uint16_t rpi;
1145
1146 phba = vport->phba;
1147 /* Release the RPI if reglogin completing */
1148 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) &&
1149 evt == NLP_EVT_CMPL_REG_LOGIN && !pmb->u.mb.mbxStatus) {
1150 rpi = pmb->u.mb.un.varWords[0];
1151 lpfc_release_rpi(phba, vport, ndlp, rpi);
1152 }
1153 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1154 "0271 Illegal State Transition: node x%x "
1155 "event x%x, state x%x Data: x%x x%x\n",
1156 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
1157 ndlp->nlp_flag);
1158 return ndlp->nlp_state;
1159}
1160
1161static uint32_t
1162lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1163 void *arg, uint32_t evt)
1164{
1165 /* This transition is only legal if we previously
1166 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
1167 * working on the same NPortID, do nothing for this thread
1168 * to stop it.
1169 */
1170 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
1171 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1172 "0272 Illegal State Transition: node x%x "
1173 "event x%x, state x%x Data: x%x x%x\n",
1174 ndlp->nlp_DID, evt, ndlp->nlp_state,
1175 ndlp->nlp_rpi, ndlp->nlp_flag);
1176 }
1177 return ndlp->nlp_state;
1178}
1179
1180/* Start of Discovery State Machine routines */
1181
1182static uint32_t
1183lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1184 void *arg, uint32_t evt)
1185{
1186 struct lpfc_iocbq *cmdiocb;
1187
1188 cmdiocb = (struct lpfc_iocbq *) arg;
1189
1190 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1191 return ndlp->nlp_state;
1192 }
1193 return NLP_STE_FREED_NODE;
1194}
1195
1196static uint32_t
1197lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1198 void *arg, uint32_t evt)
1199{
1200 lpfc_issue_els_logo(vport, ndlp, 0);
1201 return ndlp->nlp_state;
1202}
1203
1204static uint32_t
1205lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1206 void *arg, uint32_t evt)
1207{
1208 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1209
1210 spin_lock_irq(lock: &ndlp->lock);
1211 ndlp->nlp_flag |= NLP_LOGO_ACC;
1212 spin_unlock_irq(lock: &ndlp->lock);
1213 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1214
1215 return ndlp->nlp_state;
1216}
1217
1218static uint32_t
1219lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1220 void *arg, uint32_t evt)
1221{
1222 return NLP_STE_FREED_NODE;
1223}
1224
1225static uint32_t
1226lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1227 void *arg, uint32_t evt)
1228{
1229 return NLP_STE_FREED_NODE;
1230}
1231
1232static uint32_t
1233lpfc_device_recov_unused_node(struct lpfc_vport *vport,
1234 struct lpfc_nodelist *ndlp,
1235 void *arg, uint32_t evt)
1236{
1237 return ndlp->nlp_state;
1238}
1239
1240static uint32_t
1241lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1242 void *arg, uint32_t evt)
1243{
1244 struct lpfc_hba *phba = vport->phba;
1245 struct lpfc_iocbq *cmdiocb = arg;
1246 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
1247 uint32_t *lp = (uint32_t *) pcmd->virt;
1248 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
1249 struct ls_rjt stat;
1250 int port_cmp;
1251
1252 memset(&stat, 0, sizeof (struct ls_rjt));
1253
1254 /* For a PLOGI, we only accept if our portname is less
1255 * than the remote portname.
1256 */
1257 phba->fc_stat.elsLogiCol++;
1258 port_cmp = memcmp(p: &vport->fc_portname, q: &sp->portName,
1259 size: sizeof(struct lpfc_name));
1260
1261 if (port_cmp >= 0) {
1262 /* Reject this request because the remote node will accept
1263 ours */
1264 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1265 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
1266 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
1267 NULL);
1268 } else {
1269 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
1270 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
1271 (vport->num_disc_nodes)) {
1272 spin_lock_irq(lock: &ndlp->lock);
1273 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1274 spin_unlock_irq(lock: &ndlp->lock);
1275 /* Check if there are more PLOGIs to be sent */
1276 lpfc_more_plogi(vport);
1277 if (vport->num_disc_nodes == 0) {
1278 clear_bit(nr: FC_NDISC_ACTIVE, addr: &vport->fc_flag);
1279 lpfc_can_disctmo(vport);
1280 lpfc_end_rscn(vport);
1281 }
1282 }
1283 } /* If our portname was less */
1284
1285 return ndlp->nlp_state;
1286}
1287
1288static uint32_t
1289lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1290 void *arg, uint32_t evt)
1291{
1292 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1293 struct ls_rjt stat;
1294
1295 memset(&stat, 0, sizeof (struct ls_rjt));
1296 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
1297 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1298 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1299 return ndlp->nlp_state;
1300}
1301
1302static uint32_t
1303lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1304 void *arg, uint32_t evt)
1305{
1306 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1307
1308 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */
1309 if (vport->phba->sli_rev == LPFC_SLI_REV3)
1310 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag;
1311 /* software abort outstanding PLOGI */
1312 lpfc_els_abort(phba: vport->phba, ndlp);
1313
1314 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1315 return ndlp->nlp_state;
1316}
1317
1318static uint32_t
1319lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1320 void *arg, uint32_t evt)
1321{
1322 struct lpfc_hba *phba = vport->phba;
1323 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1324
1325 /* software abort outstanding PLOGI */
1326 lpfc_els_abort(phba, ndlp);
1327
1328 if (evt == NLP_EVT_RCV_LOGO) {
1329 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1330 } else {
1331 lpfc_issue_els_logo(vport, ndlp, 0);
1332 }
1333
1334 /* Put ndlp in npr state set plogi timer for 1 sec */
1335 mod_timer(timer: &ndlp->nlp_delayfunc, expires: jiffies + msecs_to_jiffies(m: 1000 * 1));
1336 spin_lock_irq(lock: &ndlp->lock);
1337 ndlp->nlp_flag |= NLP_DELAY_TMO;
1338 spin_unlock_irq(lock: &ndlp->lock);
1339 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1340 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1341 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1342
1343 return ndlp->nlp_state;
1344}
1345
1346static uint32_t
1347lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
1348 struct lpfc_nodelist *ndlp,
1349 void *arg,
1350 uint32_t evt)
1351{
1352 struct lpfc_hba *phba = vport->phba;
1353 struct lpfc_iocbq *cmdiocb, *rspiocb;
1354 struct lpfc_dmabuf *pcmd, *prsp;
1355 uint32_t *lp;
1356 uint32_t vid, flag;
1357 struct serv_parm *sp;
1358 uint32_t ed_tov;
1359 LPFC_MBOXQ_t *mbox;
1360 int rc;
1361 u32 ulp_status;
1362 u32 did;
1363
1364 cmdiocb = (struct lpfc_iocbq *) arg;
1365 rspiocb = cmdiocb->rsp_iocb;
1366
1367 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
1368
1369 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1370 /* Recovery from PLOGI collision logic */
1371 return ndlp->nlp_state;
1372 }
1373
1374 if (ulp_status)
1375 goto out;
1376
1377 pcmd = cmdiocb->cmd_dmabuf;
1378
1379 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1380 if (!prsp)
1381 goto out;
1382
1383 lp = (uint32_t *) prsp->virt;
1384 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
1385
1386 /* Some switches have FDMI servers returning 0 for WWN */
1387 if ((ndlp->nlp_DID != FDMI_DID) &&
1388 (wwn_to_u64(wwn: sp->portName.u.wwn) == 0 ||
1389 wwn_to_u64(wwn: sp->nodeName.u.wwn) == 0)) {
1390 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1391 "0142 PLOGI RSP: Invalid WWN.\n");
1392 goto out;
1393 }
1394 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, flogi: 0))
1395 goto out;
1396 /* PLOGI chkparm OK */
1397 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1398 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1399 ndlp->nlp_DID, ndlp->nlp_state,
1400 ndlp->nlp_flag, ndlp->nlp_rpi);
1401 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
1402 ndlp->nlp_fcp_info |= CLASS2;
1403 else
1404 ndlp->nlp_fcp_info |= CLASS3;
1405
1406 ndlp->nlp_class_sup = 0;
1407 if (sp->cls1.classValid)
1408 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1409 if (sp->cls2.classValid)
1410 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1411 if (sp->cls3.classValid)
1412 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1413 if (sp->cls4.classValid)
1414 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1415 ndlp->nlp_maxframe =
1416 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
1417
1418 if (test_bit(FC_PT2PT, &vport->fc_flag) &&
1419 test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) {
1420 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
1421 if (sp->cmn.edtovResolution) {
1422 /* E_D_TOV ticks are in nanoseconds */
1423 ed_tov = (phba->fc_edtov + 999999) / 1000000;
1424 }
1425
1426 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
1427 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
1428 sp->cmn.valid_vendor_ver_level) {
1429 vid = be32_to_cpu(sp->un.vv.vid);
1430 flag = be32_to_cpu(sp->un.vv.flags);
1431 if ((vid == LPFC_VV_EMLX_ID) &&
1432 (flag & LPFC_VV_SUPPRESS_RSP))
1433 ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
1434 }
1435
1436 /*
1437 * Use the larger EDTOV
1438 * RATOV = 2 * EDTOV for pt-to-pt
1439 */
1440 if (ed_tov > phba->fc_edtov)
1441 phba->fc_edtov = ed_tov;
1442 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
1443
1444 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
1445
1446 /* Issue config_link / reg_vfi to account for updated TOV's */
1447 if (phba->sli_rev == LPFC_SLI_REV4) {
1448 lpfc_issue_reg_vfi(vport);
1449 } else {
1450 mbox = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
1451 if (!mbox) {
1452 lpfc_printf_vlog(vport, KERN_ERR,
1453 LOG_TRACE_EVENT,
1454 "0133 PLOGI: no memory "
1455 "for config_link "
1456 "Data: x%x x%x x%x x%x\n",
1457 ndlp->nlp_DID, ndlp->nlp_state,
1458 ndlp->nlp_flag, ndlp->nlp_rpi);
1459 goto out;
1460 }
1461
1462 lpfc_config_link(phba, mbox);
1463
1464 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1465 mbox->vport = vport;
1466 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1467 if (rc == MBX_NOT_FINISHED) {
1468 mempool_free(element: mbox, pool: phba->mbox_mem_pool);
1469 goto out;
1470 }
1471 }
1472 }
1473
1474 lpfc_unreg_rpi(vport, ndlp);
1475
1476 mbox = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
1477 if (!mbox) {
1478 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1479 "0018 PLOGI: no memory for reg_login "
1480 "Data: x%x x%x x%x x%x\n",
1481 ndlp->nlp_DID, ndlp->nlp_state,
1482 ndlp->nlp_flag, ndlp->nlp_rpi);
1483 goto out;
1484 }
1485
1486 did = get_job_els_rsp64_did(phba, iocbq: cmdiocb);
1487
1488 if (lpfc_reg_rpi(phba, vport->vpi, did,
1489 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
1490 switch (ndlp->nlp_DID) {
1491 case NameServer_DID:
1492 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
1493 /* Fabric Controller Node needs these parameters. */
1494 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm));
1495 break;
1496 case FDMI_DID:
1497 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
1498 break;
1499 default:
1500 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
1501 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1502 }
1503
1504 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
1505 if (!mbox->ctx_ndlp)
1506 goto out;
1507
1508 mbox->vport = vport;
1509 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
1510 != MBX_NOT_FINISHED) {
1511 lpfc_nlp_set_state(vport, ndlp,
1512 NLP_STE_REG_LOGIN_ISSUE);
1513 return ndlp->nlp_state;
1514 }
1515 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1516 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1517 /* decrement node reference count to the failed mbox
1518 * command
1519 */
1520 lpfc_nlp_put(ndlp);
1521 lpfc_mbox_rsrc_cleanup(phba, mbox, locked: MBOX_THD_UNLOCKED);
1522 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1523 "0134 PLOGI: cannot issue reg_login "
1524 "Data: x%x x%x x%x x%x\n",
1525 ndlp->nlp_DID, ndlp->nlp_state,
1526 ndlp->nlp_flag, ndlp->nlp_rpi);
1527 } else {
1528 mempool_free(element: mbox, pool: phba->mbox_mem_pool);
1529
1530 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1531 "0135 PLOGI: cannot format reg_login "
1532 "Data: x%x x%x x%x x%x\n",
1533 ndlp->nlp_DID, ndlp->nlp_state,
1534 ndlp->nlp_flag, ndlp->nlp_rpi);
1535 }
1536
1537
1538out:
1539 if (ndlp->nlp_DID == NameServer_DID) {
1540 lpfc_vport_set_state(vport, new_state: FC_VPORT_FAILED);
1541 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1542 "0261 Cannot Register NameServer login\n");
1543 }
1544
1545 /*
1546 ** In case the node reference counter does not go to zero, ensure that
1547 ** the stale state for the node is not processed.
1548 */
1549
1550 ndlp->nlp_prev_state = ndlp->nlp_state;
1551 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1552 return NLP_STE_FREED_NODE;
1553}
1554
1555static uint32_t
1556lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1557 void *arg, uint32_t evt)
1558{
1559 return ndlp->nlp_state;
1560}
1561
1562static uint32_t
1563lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1564 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1565{
1566 struct lpfc_hba *phba;
1567 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1568 MAILBOX_t *mb = &pmb->u.mb;
1569 uint16_t rpi;
1570
1571 phba = vport->phba;
1572 /* Release the RPI */
1573 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) &&
1574 !mb->mbxStatus) {
1575 rpi = pmb->u.mb.un.varWords[0];
1576 lpfc_release_rpi(phba, vport, ndlp, rpi);
1577 }
1578 return ndlp->nlp_state;
1579}
1580
1581static uint32_t
1582lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1583 void *arg, uint32_t evt)
1584{
1585 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1586 spin_lock_irq(lock: &ndlp->lock);
1587 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1588 spin_unlock_irq(lock: &ndlp->lock);
1589 return ndlp->nlp_state;
1590 } else {
1591 /* software abort outstanding PLOGI */
1592 lpfc_els_abort(phba: vport->phba, ndlp);
1593
1594 lpfc_drop_node(vport, ndlp);
1595 return NLP_STE_FREED_NODE;
1596 }
1597}
1598
1599static uint32_t
1600lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1601 struct lpfc_nodelist *ndlp,
1602 void *arg,
1603 uint32_t evt)
1604{
1605 struct lpfc_hba *phba = vport->phba;
1606
1607 /* Don't do anything that will mess up processing of the
1608 * previous RSCN.
1609 */
1610 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
1611 return ndlp->nlp_state;
1612
1613 /* software abort outstanding PLOGI */
1614 lpfc_els_abort(phba, ndlp);
1615
1616 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1617 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1618 spin_lock_irq(lock: &ndlp->lock);
1619 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1620 spin_unlock_irq(lock: &ndlp->lock);
1621
1622 return ndlp->nlp_state;
1623}
1624
1625static uint32_t
1626lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1627 void *arg, uint32_t evt)
1628{
1629 struct lpfc_hba *phba = vport->phba;
1630 struct lpfc_iocbq *cmdiocb;
1631
1632 /* software abort outstanding ADISC */
1633 lpfc_els_abort(phba, ndlp);
1634
1635 cmdiocb = (struct lpfc_iocbq *) arg;
1636
1637 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1638 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1639 spin_lock_irq(lock: &ndlp->lock);
1640 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1641 spin_unlock_irq(lock: &ndlp->lock);
1642 if (vport->num_disc_nodes)
1643 lpfc_more_adisc(vport);
1644 }
1645 return ndlp->nlp_state;
1646 }
1647 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1648 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1649 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1650
1651 return ndlp->nlp_state;
1652}
1653
1654static uint32_t
1655lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1656 void *arg, uint32_t evt)
1657{
1658 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1659
1660 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
1661 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1662 return ndlp->nlp_state;
1663}
1664
1665static uint32_t
1666lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1667 void *arg, uint32_t evt)
1668{
1669 struct lpfc_hba *phba = vport->phba;
1670 struct lpfc_iocbq *cmdiocb;
1671
1672 cmdiocb = (struct lpfc_iocbq *) arg;
1673
1674 /* software abort outstanding ADISC */
1675 lpfc_els_abort(phba, ndlp);
1676
1677 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1678 return ndlp->nlp_state;
1679}
1680
1681static uint32_t
1682lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1683 struct lpfc_nodelist *ndlp,
1684 void *arg, uint32_t evt)
1685{
1686 struct lpfc_iocbq *cmdiocb;
1687
1688 cmdiocb = (struct lpfc_iocbq *) arg;
1689
1690 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1691 return ndlp->nlp_state;
1692}
1693
1694static uint32_t
1695lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1696 void *arg, uint32_t evt)
1697{
1698 struct lpfc_iocbq *cmdiocb;
1699
1700 cmdiocb = (struct lpfc_iocbq *) arg;
1701
1702 /* Treat like rcv logo */
1703 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1704 return ndlp->nlp_state;
1705}
1706
1707static uint32_t
1708lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1709 struct lpfc_nodelist *ndlp,
1710 void *arg, uint32_t evt)
1711{
1712 struct lpfc_hba *phba = vport->phba;
1713 struct lpfc_iocbq *cmdiocb, *rspiocb;
1714 ADISC *ap;
1715 int rc;
1716 u32 ulp_status;
1717
1718 cmdiocb = (struct lpfc_iocbq *) arg;
1719 rspiocb = cmdiocb->rsp_iocb;
1720
1721 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
1722
1723 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1724
1725 if ((ulp_status) ||
1726 (!lpfc_check_adisc(vport, ndlp, nn: &ap->nodeName, pn: &ap->portName))) {
1727 /* 1 sec timeout */
1728 mod_timer(timer: &ndlp->nlp_delayfunc,
1729 expires: jiffies + msecs_to_jiffies(m: 1000));
1730 spin_lock_irq(lock: &ndlp->lock);
1731 ndlp->nlp_flag |= NLP_DELAY_TMO;
1732 spin_unlock_irq(lock: &ndlp->lock);
1733 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1734
1735 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1736 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1737 lpfc_unreg_rpi(vport, ndlp);
1738 return ndlp->nlp_state;
1739 }
1740
1741 if (phba->sli_rev == LPFC_SLI_REV4) {
1742 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
1743 if (rc) {
1744 /* Stay in state and retry. */
1745 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1746 return ndlp->nlp_state;
1747 }
1748 }
1749
1750 if (ndlp->nlp_type & NLP_FCP_TARGET)
1751 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1752
1753 if (ndlp->nlp_type & NLP_NVME_TARGET)
1754 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
1755
1756 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) {
1757 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1759 } else {
1760 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1761 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1762 }
1763
1764 return ndlp->nlp_state;
1765}
1766
1767static uint32_t
1768lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1769 void *arg, uint32_t evt)
1770{
1771 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1772 spin_lock_irq(lock: &ndlp->lock);
1773 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1774 spin_unlock_irq(lock: &ndlp->lock);
1775 return ndlp->nlp_state;
1776 } else {
1777 /* software abort outstanding ADISC */
1778 lpfc_els_abort(phba: vport->phba, ndlp);
1779
1780 lpfc_drop_node(vport, ndlp);
1781 return NLP_STE_FREED_NODE;
1782 }
1783}
1784
1785static uint32_t
1786lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1787 struct lpfc_nodelist *ndlp,
1788 void *arg,
1789 uint32_t evt)
1790{
1791 struct lpfc_hba *phba = vport->phba;
1792
1793 /* Don't do anything that will mess up processing of the
1794 * previous RSCN.
1795 */
1796 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
1797 return ndlp->nlp_state;
1798
1799 /* software abort outstanding ADISC */
1800 lpfc_els_abort(phba, ndlp);
1801
1802 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1803 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1804 spin_lock_irq(lock: &ndlp->lock);
1805 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1806 spin_unlock_irq(lock: &ndlp->lock);
1807 lpfc_disc_set_adisc(vport, ndlp);
1808 return ndlp->nlp_state;
1809}
1810
1811static uint32_t
1812lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1813 struct lpfc_nodelist *ndlp,
1814 void *arg,
1815 uint32_t evt)
1816{
1817 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1818
1819 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1820 return ndlp->nlp_state;
1821}
1822
1823static uint32_t
1824lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1825 struct lpfc_nodelist *ndlp,
1826 void *arg,
1827 uint32_t evt)
1828{
1829 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1830 struct ls_rjt stat;
1831
1832 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) {
1833 return ndlp->nlp_state;
1834 }
1835 if (vport->phba->nvmet_support) {
1836 /* NVME Target mode. Handle and respond to the PRLI and
1837 * transition to UNMAPPED provided the RPI has completed
1838 * registration.
1839 */
1840 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
1841 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1842 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1843 } else {
1844 /* RPI registration has not completed. Reject the PRLI
1845 * to prevent an illegal state transition when the
1846 * rpi registration does complete.
1847 */
1848 memset(&stat, 0, sizeof(struct ls_rjt));
1849 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
1850 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1851 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
1852 ndlp, NULL);
1853 return ndlp->nlp_state;
1854 }
1855 } else {
1856 /* Initiator mode. */
1857 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1858 }
1859 return ndlp->nlp_state;
1860}
1861
1862static uint32_t
1863lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1864 struct lpfc_nodelist *ndlp,
1865 void *arg,
1866 uint32_t evt)
1867{
1868 struct lpfc_hba *phba = vport->phba;
1869 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1870 LPFC_MBOXQ_t *mb;
1871 LPFC_MBOXQ_t *nextmb;
1872
1873 cmdiocb = (struct lpfc_iocbq *) arg;
1874
1875 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1876 if ((mb = phba->sli.mbox_active)) {
1877 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1878 (ndlp == mb->ctx_ndlp)) {
1879 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1880 lpfc_nlp_put(ndlp);
1881 mb->ctx_ndlp = NULL;
1882 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1883 }
1884 }
1885
1886 spin_lock_irq(lock: &phba->hbalock);
1887 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1888 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1889 (ndlp == mb->ctx_ndlp)) {
1890 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1891 lpfc_nlp_put(ndlp);
1892 list_del(entry: &mb->list);
1893 phba->sli.mboxq_cnt--;
1894 lpfc_mbox_rsrc_cleanup(phba, mbox: mb, locked: MBOX_THD_LOCKED);
1895 }
1896 }
1897 spin_unlock_irq(lock: &phba->hbalock);
1898
1899 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1900 return ndlp->nlp_state;
1901}
1902
1903static uint32_t
1904lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1905 struct lpfc_nodelist *ndlp,
1906 void *arg,
1907 uint32_t evt)
1908{
1909 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1910
1911 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1912 return ndlp->nlp_state;
1913}
1914
1915static uint32_t
1916lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1917 struct lpfc_nodelist *ndlp,
1918 void *arg,
1919 uint32_t evt)
1920{
1921 struct lpfc_iocbq *cmdiocb;
1922
1923 cmdiocb = (struct lpfc_iocbq *) arg;
1924 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1925 return ndlp->nlp_state;
1926}
1927
1928static uint32_t
1929lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1930 struct lpfc_nodelist *ndlp,
1931 void *arg,
1932 uint32_t evt)
1933{
1934 struct lpfc_hba *phba = vport->phba;
1935 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1936 MAILBOX_t *mb = &pmb->u.mb;
1937 uint32_t did = mb->un.varWords[1];
1938
1939 if (mb->mbxStatus) {
1940 /* RegLogin failed */
1941 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1942 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1943 "x%x\n",
1944 did, mb->mbxStatus, vport->port_state,
1945 mb->un.varRegLogin.vpi,
1946 mb->un.varRegLogin.rpi);
1947 /*
1948 * If RegLogin failed due to lack of HBA resources do not
1949 * retry discovery.
1950 */
1951 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1952 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1953 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1954 return ndlp->nlp_state;
1955 }
1956
1957 /* Put ndlp in npr state set plogi timer for 1 sec */
1958 mod_timer(timer: &ndlp->nlp_delayfunc,
1959 expires: jiffies + msecs_to_jiffies(m: 1000 * 1));
1960 spin_lock_irq(lock: &ndlp->lock);
1961 ndlp->nlp_flag |= NLP_DELAY_TMO;
1962 spin_unlock_irq(lock: &ndlp->lock);
1963 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1964
1965 lpfc_issue_els_logo(vport, ndlp, 0);
1966 return ndlp->nlp_state;
1967 }
1968
1969 /* SLI4 ports have preallocated logical rpis. */
1970 if (phba->sli_rev < LPFC_SLI_REV4)
1971 ndlp->nlp_rpi = mb->un.varWords[0];
1972
1973 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1974
1975 /* Only if we are not a fabric nport do we issue PRLI */
1976 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1977 "3066 RegLogin Complete on x%x x%x x%x\n",
1978 did, ndlp->nlp_type, ndlp->nlp_fc4_type);
1979 if (!(ndlp->nlp_type & NLP_FABRIC) &&
1980 (phba->nvmet_support == 0)) {
1981 /* The driver supports FCP and NVME concurrently. If the
1982 * ndlp's nlp_fc4_type is still zero, the driver doesn't
1983 * know what PRLI to send yet. Figure that out now and
1984 * call PRLI depending on the outcome.
1985 */
1986 if (test_bit(FC_PT2PT, &vport->fc_flag)) {
1987 /* If we are pt2pt, there is no Fabric to determine
1988 * the FC4 type of the remote nport. So if NVME
1989 * is configured try it.
1990 */
1991 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1992 if ((!test_bit(FC_PT2PT_NO_NVME, &vport->fc_flag)) &&
1993 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
1994 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
1995 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
1996 /* We need to update the localport also */
1997 lpfc_nvme_update_localport(vport);
1998 }
1999
2000 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2001 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
2002
2003 } else if (ndlp->nlp_fc4_type == 0) {
2004 /* If we are only configured for FCP, the driver
2005 * should just issue PRLI for FCP. Otherwise issue
2006 * GFT_ID to determine if remote port supports NVME.
2007 */
2008 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) {
2009 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0,
2010 ndlp->nlp_DID);
2011 return ndlp->nlp_state;
2012 }
2013 ndlp->nlp_fc4_type = NLP_FC4_FCP;
2014 }
2015
2016 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2017 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
2018 if (lpfc_issue_els_prli(vport, ndlp, 0)) {
2019 lpfc_issue_els_logo(vport, ndlp, 0);
2020 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2021 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2022 }
2023 } else {
2024 if (test_bit(FC_PT2PT, &vport->fc_flag) && phba->nvmet_support)
2025 phba->targetport->port_id = vport->fc_myDID;
2026
2027 /* Only Fabric ports should transition. NVME target
2028 * must complete PRLI.
2029 */
2030 if (ndlp->nlp_type & NLP_FABRIC) {
2031 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP;
2032 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2033 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2034 }
2035 }
2036 return ndlp->nlp_state;
2037}
2038
2039static uint32_t
2040lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
2041 struct lpfc_nodelist *ndlp,
2042 void *arg,
2043 uint32_t evt)
2044{
2045 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2046 spin_lock_irq(lock: &ndlp->lock);
2047 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2048 spin_unlock_irq(lock: &ndlp->lock);
2049 return ndlp->nlp_state;
2050 } else {
2051 lpfc_drop_node(vport, ndlp);
2052 return NLP_STE_FREED_NODE;
2053 }
2054}
2055
2056static uint32_t
2057lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
2058 struct lpfc_nodelist *ndlp,
2059 void *arg,
2060 uint32_t evt)
2061{
2062 /* Don't do anything that will mess up processing of the
2063 * previous RSCN.
2064 */
2065 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
2066 return ndlp->nlp_state;
2067
2068 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2069 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2070 spin_lock_irq(lock: &ndlp->lock);
2071
2072 /* If we are a target we won't immediately transition into PRLI,
2073 * so if REG_LOGIN already completed we don't need to ignore it.
2074 */
2075 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) ||
2076 !vport->phba->nvmet_support)
2077 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
2078
2079 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2080 spin_unlock_irq(lock: &ndlp->lock);
2081 lpfc_disc_set_adisc(vport, ndlp);
2082 return ndlp->nlp_state;
2083}
2084
2085static uint32_t
2086lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2087 void *arg, uint32_t evt)
2088{
2089 struct lpfc_iocbq *cmdiocb;
2090
2091 cmdiocb = (struct lpfc_iocbq *) arg;
2092
2093 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2094 return ndlp->nlp_state;
2095}
2096
2097static uint32_t
2098lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2099 void *arg, uint32_t evt)
2100{
2101 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2102
2103 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
2104 return ndlp->nlp_state;
2105 lpfc_rcv_prli(vport, ndlp, cmdiocb);
2106 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2107 return ndlp->nlp_state;
2108}
2109
2110static uint32_t
2111lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2112 void *arg, uint32_t evt)
2113{
2114 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2115
2116 /* Software abort outstanding PRLI before sending acc */
2117 lpfc_els_abort(phba: vport->phba, ndlp);
2118
2119 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2120 return ndlp->nlp_state;
2121}
2122
2123static uint32_t
2124lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2125 void *arg, uint32_t evt)
2126{
2127 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2128
2129 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2130 return ndlp->nlp_state;
2131}
2132
2133/* This routine is envoked when we rcv a PRLO request from a nport
2134 * we are logged into. We should send back a PRLO rsp setting the
2135 * appropriate bits.
2136 * NEXT STATE = PRLI_ISSUE
2137 */
2138static uint32_t
2139lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2140 void *arg, uint32_t evt)
2141{
2142 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2143
2144 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
2145 return ndlp->nlp_state;
2146}
2147
2148static uint32_t
2149lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2150 void *arg, uint32_t evt)
2151{
2152 struct lpfc_iocbq *cmdiocb, *rspiocb;
2153 struct lpfc_hba *phba = vport->phba;
2154 PRLI *npr;
2155 struct lpfc_nvme_prli *nvpr;
2156 void *temp_ptr;
2157 u32 ulp_status;
2158 bool acc_imode_sps = false;
2159
2160 cmdiocb = (struct lpfc_iocbq *) arg;
2161 rspiocb = cmdiocb->rsp_iocb;
2162
2163 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
2164
2165 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp
2166 * format is different so NULL the two PRLI types so that the
2167 * driver correctly gets the correct context.
2168 */
2169 npr = NULL;
2170 nvpr = NULL;
2171 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
2172 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ)
2173 npr = (PRLI *) temp_ptr;
2174 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ)
2175 nvpr = (struct lpfc_nvme_prli *) temp_ptr;
2176
2177 if (ulp_status) {
2178 if ((vport->port_type == LPFC_NPIV_PORT) &&
2179 vport->cfg_restrict_login) {
2180 goto out;
2181 }
2182
2183 /* Adjust the nlp_type accordingly if the PRLI failed */
2184 if (npr)
2185 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP;
2186 if (nvpr)
2187 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME;
2188
2189 /* We can't set the DSM state till BOTH PRLIs complete */
2190 goto out_err;
2191 }
2192
2193 if (npr && npr->prliType == PRLI_FCP_TYPE) {
2194 lpfc_printf_vlog(vport, KERN_INFO,
2195 LOG_ELS | LOG_NODE | LOG_DISCOVERY,
2196 "6028 FCP NPR PRLI Cmpl Init %d Target %d "
2197 "EIP %d AccCode x%x\n",
2198 npr->initiatorFunc, npr->targetFunc,
2199 npr->estabImagePair, npr->acceptRspCode);
2200
2201 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) {
2202 /* Strict initiators don't establish an image pair. */
2203 if (npr->initiatorFunc && !npr->targetFunc &&
2204 !npr->estabImagePair)
2205 acc_imode_sps = true;
2206 }
2207
2208 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) {
2209 if (npr->initiatorFunc)
2210 ndlp->nlp_type |= NLP_FCP_INITIATOR;
2211 if (npr->targetFunc) {
2212 ndlp->nlp_type |= NLP_FCP_TARGET;
2213 if (npr->writeXferRdyDis)
2214 ndlp->nlp_flag |= NLP_FIRSTBURST;
2215 }
2216 if (npr->Retry)
2217 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
2218 }
2219 } else if (nvpr &&
2220 (bf_get_be32(prli_acc_rsp_code, nvpr) ==
2221 PRLI_REQ_EXECUTED) &&
2222 (bf_get_be32(prli_type_code, nvpr) ==
2223 PRLI_NVME_TYPE)) {
2224
2225 /* Complete setting up the remote ndlp personality. */
2226 if (bf_get_be32(prli_init, nvpr))
2227 ndlp->nlp_type |= NLP_NVME_INITIATOR;
2228
2229 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) &&
2230 bf_get_be32(prli_conf, nvpr))
2231
2232 ndlp->nlp_nvme_info |= NLP_NVME_NSLER;
2233 else
2234 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
2235
2236 /* Target driver cannot solicit NVME FB. */
2237 if (bf_get_be32(prli_tgt, nvpr)) {
2238 /* Complete the nvme target roles. The transport
2239 * needs to know if the rport is capable of
2240 * discovery in addition to its role.
2241 */
2242 ndlp->nlp_type |= NLP_NVME_TARGET;
2243 if (bf_get_be32(prli_disc, nvpr))
2244 ndlp->nlp_type |= NLP_NVME_DISCOVERY;
2245
2246 /*
2247 * If prli_fba is set, the Target supports FirstBurst.
2248 * If prli_fb_sz is 0, the FirstBurst size is unlimited,
2249 * otherwise it defines the actual size supported by
2250 * the NVME Target.
2251 */
2252 if ((bf_get_be32(prli_fba, nvpr) == 1) &&
2253 (phba->cfg_nvme_enable_fb) &&
2254 (!phba->nvmet_support)) {
2255 /* Both sides support FB. The target's first
2256 * burst size is a 512 byte encoded value.
2257 */
2258 ndlp->nlp_flag |= NLP_FIRSTBURST;
2259 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz,
2260 nvpr);
2261
2262 /* Expressed in units of 512 bytes */
2263 if (ndlp->nvme_fb_size)
2264 ndlp->nvme_fb_size <<=
2265 LPFC_NVME_FB_SHIFT;
2266 else
2267 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB;
2268 }
2269 }
2270
2271 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
2272 "6029 NVME PRLI Cmpl w1 x%08x "
2273 "w4 x%08x w5 x%08x flag x%x, "
2274 "fcp_info x%x nlp_type x%x\n",
2275 be32_to_cpu(nvpr->word1),
2276 be32_to_cpu(nvpr->word4),
2277 be32_to_cpu(nvpr->word5),
2278 ndlp->nlp_flag, ndlp->nlp_fcp_info,
2279 ndlp->nlp_type);
2280 }
2281 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
2282 (vport->port_type == LPFC_NPIV_PORT) &&
2283 vport->cfg_restrict_login) {
2284out:
2285 spin_lock_irq(lock: &ndlp->lock);
2286 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
2287 spin_unlock_irq(lock: &ndlp->lock);
2288 lpfc_issue_els_logo(vport, ndlp, 0);
2289
2290 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2291 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2292 return ndlp->nlp_state;
2293 }
2294
2295out_err:
2296 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs
2297 * are complete.
2298 */
2299 if (ndlp->fc4_prli_sent == 0) {
2300 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2301 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
2302 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2303 else if (ndlp->nlp_type &
2304 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR))
2305 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2306 } else
2307 lpfc_printf_vlog(vport,
2308 KERN_INFO, LOG_ELS,
2309 "3067 PRLI's still outstanding "
2310 "on x%06x - count %d, Pend Node Mode "
2311 "transition...\n",
2312 ndlp->nlp_DID, ndlp->fc4_prli_sent);
2313
2314 return ndlp->nlp_state;
2315}
2316
2317/*! lpfc_device_rm_prli_issue
2318 *
2319 * \pre
2320 * \post
2321 * \param phba
2322 * \param ndlp
2323 * \param arg
2324 * \param evt
2325 * \return uint32_t
2326 *
2327 * \b Description:
2328 * This routine is envoked when we a request to remove a nport we are in the
2329 * process of PRLIing. We should software abort outstanding prli, unreg
2330 * login, send a logout. We will change node state to UNUSED_NODE, put it
2331 * on plogi list so it can be freed when LOGO completes.
2332 *
2333 */
2334
2335static uint32_t
2336lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2337 void *arg, uint32_t evt)
2338{
2339 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2340 spin_lock_irq(lock: &ndlp->lock);
2341 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2342 spin_unlock_irq(lock: &ndlp->lock);
2343 return ndlp->nlp_state;
2344 } else {
2345 /* software abort outstanding PLOGI */
2346 lpfc_els_abort(phba: vport->phba, ndlp);
2347
2348 lpfc_drop_node(vport, ndlp);
2349 return NLP_STE_FREED_NODE;
2350 }
2351}
2352
2353
2354/*! lpfc_device_recov_prli_issue
2355 *
2356 * \pre
2357 * \post
2358 * \param phba
2359 * \param ndlp
2360 * \param arg
2361 * \param evt
2362 * \return uint32_t
2363 *
2364 * \b Description:
2365 * The routine is envoked when the state of a device is unknown, like
2366 * during a link down. We should remove the nodelist entry from the
2367 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
2368 * outstanding PRLI command, then free the node entry.
2369 */
2370static uint32_t
2371lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
2372 struct lpfc_nodelist *ndlp,
2373 void *arg,
2374 uint32_t evt)
2375{
2376 struct lpfc_hba *phba = vport->phba;
2377
2378 /* Don't do anything that will mess up processing of the
2379 * previous RSCN.
2380 */
2381 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
2382 return ndlp->nlp_state;
2383
2384 /* software abort outstanding PRLI */
2385 lpfc_els_abort(phba, ndlp);
2386
2387 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2388 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2389 spin_lock_irq(lock: &ndlp->lock);
2390 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2391 spin_unlock_irq(lock: &ndlp->lock);
2392 lpfc_disc_set_adisc(vport, ndlp);
2393 return ndlp->nlp_state;
2394}
2395
2396static uint32_t
2397lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2398 void *arg, uint32_t evt)
2399{
2400 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2401 struct ls_rjt stat;
2402
2403 memset(&stat, 0, sizeof(struct ls_rjt));
2404 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2405 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2406 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2407 return ndlp->nlp_state;
2408}
2409
2410static uint32_t
2411lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2412 void *arg, uint32_t evt)
2413{
2414 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2415 struct ls_rjt stat;
2416
2417 memset(&stat, 0, sizeof(struct ls_rjt));
2418 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2419 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2420 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2421 return ndlp->nlp_state;
2422}
2423
2424static uint32_t
2425lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2426 void *arg, uint32_t evt)
2427{
2428 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2429
2430 spin_lock_irq(lock: &ndlp->lock);
2431 ndlp->nlp_flag |= NLP_LOGO_ACC;
2432 spin_unlock_irq(lock: &ndlp->lock);
2433 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2434 return ndlp->nlp_state;
2435}
2436
2437static uint32_t
2438lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2439 void *arg, uint32_t evt)
2440{
2441 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2442 struct ls_rjt stat;
2443
2444 memset(&stat, 0, sizeof(struct ls_rjt));
2445 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2446 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2447 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2448 return ndlp->nlp_state;
2449}
2450
2451static uint32_t
2452lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2453 void *arg, uint32_t evt)
2454{
2455 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2456 struct ls_rjt stat;
2457
2458 memset(&stat, 0, sizeof(struct ls_rjt));
2459 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2460 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2461 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2462 return ndlp->nlp_state;
2463}
2464
2465static uint32_t
2466lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2467 void *arg, uint32_t evt)
2468{
2469 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
2470 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2471 spin_lock_irq(lock: &ndlp->lock);
2472 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2473 spin_unlock_irq(lock: &ndlp->lock);
2474 lpfc_disc_set_adisc(vport, ndlp);
2475 return ndlp->nlp_state;
2476}
2477
2478static uint32_t
2479lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2480 void *arg, uint32_t evt)
2481{
2482 /*
2483 * DevLoss has timed out and is calling for Device Remove.
2484 * In this case, abort the LOGO and cleanup the ndlp
2485 */
2486
2487 lpfc_unreg_rpi(vport, ndlp);
2488 /* software abort outstanding PLOGI */
2489 lpfc_els_abort(phba: vport->phba, ndlp);
2490 lpfc_drop_node(vport, ndlp);
2491 return NLP_STE_FREED_NODE;
2492}
2493
2494static uint32_t
2495lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
2496 struct lpfc_nodelist *ndlp,
2497 void *arg, uint32_t evt)
2498{
2499 /*
2500 * Device Recovery events have no meaning for a node with a LOGO
2501 * outstanding. The LOGO has to complete first and handle the
2502 * node from that point.
2503 */
2504 return ndlp->nlp_state;
2505}
2506
2507static uint32_t
2508lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2509 void *arg, uint32_t evt)
2510{
2511 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2512
2513 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2514 return ndlp->nlp_state;
2515}
2516
2517static uint32_t
2518lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2519 void *arg, uint32_t evt)
2520{
2521 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2522
2523 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
2524 return ndlp->nlp_state;
2525
2526 lpfc_rcv_prli(vport, ndlp, cmdiocb);
2527 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2528 return ndlp->nlp_state;
2529}
2530
2531static uint32_t
2532lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2533 void *arg, uint32_t evt)
2534{
2535 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2536
2537 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2538 return ndlp->nlp_state;
2539}
2540
2541static uint32_t
2542lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2543 void *arg, uint32_t evt)
2544{
2545 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2546
2547 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2548 return ndlp->nlp_state;
2549}
2550
2551static uint32_t
2552lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2553 void *arg, uint32_t evt)
2554{
2555 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2556
2557 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
2558 return ndlp->nlp_state;
2559}
2560
2561static uint32_t
2562lpfc_device_rm_unmap_node(struct lpfc_vport *vport,
2563 struct lpfc_nodelist *ndlp,
2564 void *arg,
2565 uint32_t evt)
2566{
2567 lpfc_drop_node(vport, ndlp);
2568 return NLP_STE_FREED_NODE;
2569}
2570
2571static uint32_t
2572lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
2573 struct lpfc_nodelist *ndlp,
2574 void *arg,
2575 uint32_t evt)
2576{
2577 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2578 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2579 spin_lock_irq(lock: &ndlp->lock);
2580 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2581 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
2582 spin_unlock_irq(lock: &ndlp->lock);
2583 lpfc_disc_set_adisc(vport, ndlp);
2584
2585 return ndlp->nlp_state;
2586}
2587
2588static uint32_t
2589lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2590 void *arg, uint32_t evt)
2591{
2592 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2593
2594 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
2595 return ndlp->nlp_state;
2596}
2597
2598static uint32_t
2599lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2600 void *arg, uint32_t evt)
2601{
2602 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2603
2604 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
2605 return ndlp->nlp_state;
2606 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
2607 return ndlp->nlp_state;
2608}
2609
2610static uint32_t
2611lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2612 void *arg, uint32_t evt)
2613{
2614 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2615
2616 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2617 return ndlp->nlp_state;
2618}
2619
2620static uint32_t
2621lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2622 struct lpfc_nodelist *ndlp,
2623 void *arg, uint32_t evt)
2624{
2625 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2626
2627 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2628 return ndlp->nlp_state;
2629}
2630
2631static uint32_t
2632lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2633 void *arg, uint32_t evt)
2634{
2635 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2636
2637 /* flush the target */
2638 lpfc_sli_abort_iocb(vport, tgt_id: ndlp->nlp_sid, lun_id: 0, abort_cmd: LPFC_CTX_TGT);
2639
2640 /* Treat like rcv logo */
2641 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
2642 return ndlp->nlp_state;
2643}
2644
2645static uint32_t
2646lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2647 struct lpfc_nodelist *ndlp,
2648 void *arg,
2649 uint32_t evt)
2650{
2651 lpfc_disc_set_adisc(vport, ndlp);
2652
2653 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2654 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2655 spin_lock_irq(lock: &ndlp->lock);
2656 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2657 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
2658 spin_unlock_irq(lock: &ndlp->lock);
2659 return ndlp->nlp_state;
2660}
2661
2662static uint32_t
2663lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2664 void *arg, uint32_t evt)
2665{
2666 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2667
2668 /* Ignore PLOGI if we have an outstanding LOGO */
2669 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
2670 return ndlp->nlp_state;
2671 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
2672 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2673 spin_lock_irq(lock: &ndlp->lock);
2674 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2675 spin_unlock_irq(lock: &ndlp->lock);
2676 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2677 /* send PLOGI immediately, move to PLOGI issue state */
2678 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2679 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2680 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2681 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2682 }
2683 }
2684 return ndlp->nlp_state;
2685}
2686
2687static uint32_t
2688lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2689 void *arg, uint32_t evt)
2690{
2691 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2692 struct ls_rjt stat;
2693
2694 memset(&stat, 0, sizeof (struct ls_rjt));
2695 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2696 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2697 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2698
2699 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2700 /*
2701 * ADISC nodes will be handled in regular discovery path after
2702 * receiving response from NS.
2703 *
2704 * For other nodes, Send PLOGI to trigger an implicit LOGO.
2705 */
2706 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2707 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2708 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2709 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2710 }
2711 }
2712 return ndlp->nlp_state;
2713}
2714
2715static uint32_t
2716lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2717 void *arg, uint32_t evt)
2718{
2719 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2720
2721 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
2722 return ndlp->nlp_state;
2723}
2724
2725static uint32_t
2726lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2727 void *arg, uint32_t evt)
2728{
2729 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2730
2731 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
2732 /*
2733 * Do not start discovery if discovery is about to start
2734 * or discovery in progress for this node. Starting discovery
2735 * here will affect the counting of discovery threads.
2736 */
2737 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
2738 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2739 /*
2740 * ADISC nodes will be handled in regular discovery path after
2741 * receiving response from NS.
2742 *
2743 * For other nodes, Send PLOGI to trigger an implicit LOGO.
2744 */
2745 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2746 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2748 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2749 }
2750 }
2751 return ndlp->nlp_state;
2752}
2753
2754static uint32_t
2755lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2756 void *arg, uint32_t evt)
2757{
2758 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2759
2760 spin_lock_irq(lock: &ndlp->lock);
2761 ndlp->nlp_flag |= NLP_LOGO_ACC;
2762 spin_unlock_irq(lock: &ndlp->lock);
2763
2764 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2765
2766 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
2767 mod_timer(timer: &ndlp->nlp_delayfunc,
2768 expires: jiffies + msecs_to_jiffies(m: 1000 * 1));
2769 spin_lock_irq(lock: &ndlp->lock);
2770 ndlp->nlp_flag |= NLP_DELAY_TMO;
2771 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2772 spin_unlock_irq(lock: &ndlp->lock);
2773 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
2774 } else {
2775 spin_lock_irq(lock: &ndlp->lock);
2776 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2777 spin_unlock_irq(lock: &ndlp->lock);
2778 }
2779 return ndlp->nlp_state;
2780}
2781
2782static uint32_t
2783lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2784 void *arg, uint32_t evt)
2785{
2786 struct lpfc_hba *phba = vport->phba;
2787 struct lpfc_iocbq *cmdiocb, *rspiocb;
2788 u32 ulp_status;
2789
2790 cmdiocb = (struct lpfc_iocbq *) arg;
2791 rspiocb = cmdiocb->rsp_iocb;
2792
2793 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
2794
2795 if (ulp_status)
2796 return NLP_STE_FREED_NODE;
2797
2798 return ndlp->nlp_state;
2799}
2800
2801static uint32_t
2802lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2803 void *arg, uint32_t evt)
2804{
2805 struct lpfc_hba *phba = vport->phba;
2806 struct lpfc_iocbq *cmdiocb, *rspiocb;
2807 u32 ulp_status;
2808
2809 cmdiocb = (struct lpfc_iocbq *) arg;
2810 rspiocb = cmdiocb->rsp_iocb;
2811
2812 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
2813
2814 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2815 lpfc_drop_node(vport, ndlp);
2816 return NLP_STE_FREED_NODE;
2817 }
2818 return ndlp->nlp_state;
2819}
2820
2821static uint32_t
2822lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2823 void *arg, uint32_t evt)
2824{
2825 /* For the fabric port just clear the fc flags. */
2826 if (ndlp->nlp_DID == Fabric_DID) {
2827 clear_bit(nr: FC_FABRIC, addr: &vport->fc_flag);
2828 clear_bit(nr: FC_PUBLIC_LOOP, addr: &vport->fc_flag);
2829 }
2830 lpfc_unreg_rpi(vport, ndlp);
2831 return ndlp->nlp_state;
2832}
2833
2834static uint32_t
2835lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2836 void *arg, uint32_t evt)
2837{
2838 struct lpfc_hba *phba = vport->phba;
2839 struct lpfc_iocbq *cmdiocb, *rspiocb;
2840 u32 ulp_status;
2841
2842 cmdiocb = (struct lpfc_iocbq *) arg;
2843 rspiocb = cmdiocb->rsp_iocb;
2844
2845 ulp_status = get_job_ulpstatus(phba, iocbq: rspiocb);
2846
2847 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2848 lpfc_drop_node(vport, ndlp);
2849 return NLP_STE_FREED_NODE;
2850 }
2851 return ndlp->nlp_state;
2852}
2853
2854static uint32_t
2855lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2856 struct lpfc_nodelist *ndlp,
2857 void *arg, uint32_t evt)
2858{
2859 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
2860 MAILBOX_t *mb = &pmb->u.mb;
2861
2862 if (!mb->mbxStatus) {
2863 /* SLI4 ports have preallocated logical rpis. */
2864 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2865 ndlp->nlp_rpi = mb->un.varWords[0];
2866 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
2867 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
2868 lpfc_unreg_rpi(vport, ndlp);
2869 }
2870 } else {
2871 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2872 lpfc_drop_node(vport, ndlp);
2873 return NLP_STE_FREED_NODE;
2874 }
2875 }
2876 return ndlp->nlp_state;
2877}
2878
2879static uint32_t
2880lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2881 void *arg, uint32_t evt)
2882{
2883 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2884 spin_lock_irq(lock: &ndlp->lock);
2885 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2886 spin_unlock_irq(lock: &ndlp->lock);
2887 return ndlp->nlp_state;
2888 }
2889 lpfc_drop_node(vport, ndlp);
2890 return NLP_STE_FREED_NODE;
2891}
2892
2893static uint32_t
2894lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2895 void *arg, uint32_t evt)
2896{
2897 /* Don't do anything that will mess up processing of the
2898 * previous RSCN.
2899 */
2900 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
2901 return ndlp->nlp_state;
2902
2903 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2904 spin_lock_irq(lock: &ndlp->lock);
2905 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2906 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
2907 spin_unlock_irq(lock: &ndlp->lock);
2908 return ndlp->nlp_state;
2909}
2910
2911
2912/* This next section defines the NPort Discovery State Machine */
2913
2914/* There are 4 different double linked lists nodelist entries can reside on.
2915 * The plogi list and adisc list are used when Link Up discovery or RSCN
2916 * processing is needed. Each list holds the nodes that we will send PLOGI
2917 * or ADISC on. These lists will keep track of what nodes will be effected
2918 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2919 * The unmapped_list will contain all nodes that we have successfully logged
2920 * into at the Fibre Channel level. The mapped_list will contain all nodes
2921 * that are mapped FCP targets.
2922 */
2923/*
2924 * The bind list is a list of undiscovered (potentially non-existent) nodes
2925 * that we have saved binding information on. This information is used when
2926 * nodes transition from the unmapped to the mapped list.
2927 */
2928/* For UNUSED_NODE state, the node has just been allocated .
2929 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2930 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2931 * and put on the unmapped list. For ADISC processing, the node is taken off
2932 * the ADISC list and placed on either the mapped or unmapped list (depending
2933 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2934 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2935 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2936 * node, the node is taken off the unmapped list. The binding list is checked
2937 * for a valid binding, or a binding is automatically assigned. If binding
2938 * assignment is unsuccessful, the node is left on the unmapped list. If
2939 * binding assignment is successful, the associated binding list entry (if
2940 * any) is removed, and the node is placed on the mapped list.
2941 */
2942/*
2943 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
2944 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
2945 * expire, all effected nodes will receive a DEVICE_RM event.
2946 */
2947/*
2948 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2949 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2950 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2951 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2952 * we will first process the ADISC list. 32 entries are processed initially and
2953 * ADISC is initited for each one. Completions / Events for each node are
2954 * funnelled thru the state machine. As each node finishes ADISC processing, it
2955 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2956 * waiting, and the ADISC list count is identically 0, then we are done. For
2957 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2958 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2959 * list. 32 entries are processed initially and PLOGI is initited for each one.
2960 * Completions / Events for each node are funnelled thru the state machine. As
2961 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2962 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2963 * indentically 0, then we are done. We have now completed discovery / RSCN
2964 * handling. Upon completion, ALL nodes should be on either the mapped or
2965 * unmapped lists.
2966 */
2967
2968static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2969 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
2970 /* Action routine Event Current State */
2971 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2972 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2973 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2974 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2975 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2976 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2977 lpfc_disc_illegal, /* CMPL_PLOGI */
2978 lpfc_disc_illegal, /* CMPL_PRLI */
2979 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2980 lpfc_disc_illegal, /* CMPL_ADISC */
2981 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2982 lpfc_device_rm_unused_node, /* DEVICE_RM */
2983 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
2984
2985 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2986 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2987 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2988 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2989 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2990 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2991 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2992 lpfc_disc_illegal, /* CMPL_PRLI */
2993 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2994 lpfc_disc_illegal, /* CMPL_ADISC */
2995 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2996 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2997 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2998
2999 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
3000 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
3001 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
3002 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
3003 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
3004 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
3005 lpfc_disc_illegal, /* CMPL_PLOGI */
3006 lpfc_disc_illegal, /* CMPL_PRLI */
3007 lpfc_disc_illegal, /* CMPL_LOGO */
3008 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
3009 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3010 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
3011 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
3012
3013 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
3014 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
3015 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
3016 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
3017 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
3018 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
3019 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
3020 lpfc_disc_illegal, /* CMPL_PRLI */
3021 lpfc_disc_illegal, /* CMPL_LOGO */
3022 lpfc_disc_illegal, /* CMPL_ADISC */
3023 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
3024 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
3025 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
3026
3027 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
3028 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
3029 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
3030 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
3031 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
3032 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
3033 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
3034 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
3035 lpfc_disc_illegal, /* CMPL_LOGO */
3036 lpfc_disc_illegal, /* CMPL_ADISC */
3037 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3038 lpfc_device_rm_prli_issue, /* DEVICE_RM */
3039 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
3040
3041 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
3042 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
3043 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
3044 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
3045 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
3046 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
3047 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
3048 lpfc_disc_illegal, /* CMPL_PRLI */
3049 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
3050 lpfc_disc_illegal, /* CMPL_ADISC */
3051 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3052 lpfc_device_rm_logo_issue, /* DEVICE_RM */
3053 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
3054
3055 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
3056 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
3057 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
3058 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
3059 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
3060 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
3061 lpfc_disc_illegal, /* CMPL_PLOGI */
3062 lpfc_disc_illegal, /* CMPL_PRLI */
3063 lpfc_disc_illegal, /* CMPL_LOGO */
3064 lpfc_disc_illegal, /* CMPL_ADISC */
3065 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3066 lpfc_device_rm_unmap_node, /* DEVICE_RM */
3067 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
3068
3069 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
3070 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
3071 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
3072 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
3073 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
3074 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
3075 lpfc_disc_illegal, /* CMPL_PLOGI */
3076 lpfc_disc_illegal, /* CMPL_PRLI */
3077 lpfc_disc_illegal, /* CMPL_LOGO */
3078 lpfc_disc_illegal, /* CMPL_ADISC */
3079 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
3080 lpfc_disc_illegal, /* DEVICE_RM */
3081 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
3082
3083 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
3084 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
3085 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
3086 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
3087 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
3088 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
3089 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
3090 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
3091 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
3092 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
3093 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
3094 lpfc_device_rm_npr_node, /* DEVICE_RM */
3095 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
3096};
3097
3098int
3099lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3100 void *arg, uint32_t evt)
3101{
3102 uint32_t cur_state, rc;
3103 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
3104 uint32_t);
3105 uint32_t got_ndlp = 0;
3106 uint32_t data1;
3107
3108 if (lpfc_nlp_get(ndlp))
3109 got_ndlp = 1;
3110
3111 cur_state = ndlp->nlp_state;
3112
3113 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
3114 ((uint32_t)ndlp->nlp_type));
3115 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
3116 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3117 "0211 DSM in event x%x on NPort x%x in "
3118 "state %d rpi x%x Data: x%x x%x\n",
3119 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi,
3120 ndlp->nlp_flag, data1);
3121
3122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
3123 "DSM in: evt:%d ste:%d did:x%x",
3124 evt, cur_state, ndlp->nlp_DID);
3125
3126 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
3127 rc = (func) (vport, ndlp, arg, evt);
3128
3129 /* DSM out state <rc> on NPort <nlp_DID> */
3130 if (got_ndlp) {
3131 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
3132 ((uint32_t)ndlp->nlp_type));
3133 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3134 "0212 DSM out state %d on NPort x%x "
3135 "rpi x%x Data: x%x x%x\n",
3136 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag,
3137 data1);
3138
3139 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
3140 "DSM out: ste:%d did:x%x flg:x%x",
3141 rc, ndlp->nlp_DID, ndlp->nlp_flag);
3142 /* Decrement the ndlp reference count held for this function */
3143 lpfc_nlp_put(ndlp);
3144 } else {
3145 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3146 "0213 DSM out state %d on NPort free\n", rc);
3147
3148 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
3149 "DSM out: ste:%d did:x%x flg:x%x",
3150 rc, 0, 0);
3151 }
3152
3153 return rc;
3154}
3155

source code of linux/drivers/scsi/lpfc/lpfc_nportdisc.c