1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
31
32 #include "lpfc_hw4.h"
33 #include "lpfc_hw.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_sli4.h"
36 #include "lpfc_nl.h"
37 #include "lpfc_disc.h"
38 #include "lpfc_scsi.h"
39 #include "lpfc.h"
40 #include "lpfc_logmsg.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_vport.h"
43 #include "lpfc_debugfs.h"
44
45
46 /* Called to verify a rcv'ed ADISC was intended for us. */
47 static int
lpfc_check_adisc(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,struct lpfc_name * nn,struct lpfc_name * pn)48 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
49 struct lpfc_name *nn, struct lpfc_name *pn)
50 {
51 /* First, we MUST have a RPI registered */
52 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
53 return 0;
54
55 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
56 * table entry for that node.
57 */
58 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
59 return 0;
60
61 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
62 return 0;
63
64 /* we match, return success */
65 return 1;
66 }
67
68 int
lpfc_check_sparm(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,struct serv_parm * sp,uint32_t class,int flogi)69 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
70 struct serv_parm *sp, uint32_t class, int flogi)
71 {
72 volatile struct serv_parm *hsp = &vport->fc_sparam;
73 uint16_t hsp_value, ssp_value = 0;
74
75 /*
76 * The receive data field size and buffer-to-buffer receive data field
77 * size entries are 16 bits but are represented as two 8-bit fields in
78 * the driver data structure to account for rsvd bits and other control
79 * bits. Reconstruct and compare the fields as a 16-bit values before
80 * correcting the byte values.
81 */
82 if (sp->cls1.classValid) {
83 if (!flogi) {
84 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
85 hsp->cls1.rcvDataSizeLsb);
86 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
87 sp->cls1.rcvDataSizeLsb);
88 if (!ssp_value)
89 goto bad_service_param;
90 if (ssp_value > hsp_value) {
91 sp->cls1.rcvDataSizeLsb =
92 hsp->cls1.rcvDataSizeLsb;
93 sp->cls1.rcvDataSizeMsb =
94 hsp->cls1.rcvDataSizeMsb;
95 }
96 }
97 } else if (class == CLASS1)
98 goto bad_service_param;
99 if (sp->cls2.classValid) {
100 if (!flogi) {
101 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
102 hsp->cls2.rcvDataSizeLsb);
103 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
104 sp->cls2.rcvDataSizeLsb);
105 if (!ssp_value)
106 goto bad_service_param;
107 if (ssp_value > hsp_value) {
108 sp->cls2.rcvDataSizeLsb =
109 hsp->cls2.rcvDataSizeLsb;
110 sp->cls2.rcvDataSizeMsb =
111 hsp->cls2.rcvDataSizeMsb;
112 }
113 }
114 } else if (class == CLASS2)
115 goto bad_service_param;
116 if (sp->cls3.classValid) {
117 if (!flogi) {
118 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
119 hsp->cls3.rcvDataSizeLsb);
120 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
121 sp->cls3.rcvDataSizeLsb);
122 if (!ssp_value)
123 goto bad_service_param;
124 if (ssp_value > hsp_value) {
125 sp->cls3.rcvDataSizeLsb =
126 hsp->cls3.rcvDataSizeLsb;
127 sp->cls3.rcvDataSizeMsb =
128 hsp->cls3.rcvDataSizeMsb;
129 }
130 }
131 } else if (class == CLASS3)
132 goto bad_service_param;
133
134 /*
135 * Preserve the upper four bits of the MSB from the PLOGI response.
136 * These bits contain the Buffer-to-Buffer State Change Number
137 * from the target and need to be passed to the FW.
138 */
139 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
140 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
141 if (ssp_value > hsp_value) {
142 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
143 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
144 (hsp->cmn.bbRcvSizeMsb & 0x0F);
145 }
146
147 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
148 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
149 return 1;
150 bad_service_param:
151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
152 "0207 Device %x "
153 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
154 "invalid service parameters. Ignoring device.\n",
155 ndlp->nlp_DID,
156 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
157 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
158 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
159 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
160 return 0;
161 }
162
163 static void *
lpfc_check_elscmpl_iocb(struct lpfc_hba * phba,struct lpfc_iocbq * cmdiocb,struct lpfc_iocbq * rspiocb)164 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
165 struct lpfc_iocbq *rspiocb)
166 {
167 struct lpfc_dmabuf *pcmd, *prsp;
168 uint32_t *lp;
169 void *ptr = NULL;
170 IOCB_t *irsp;
171
172 irsp = &rspiocb->iocb;
173 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
174
175 /* For lpfc_els_abort, context2 could be zero'ed to delay
176 * freeing associated memory till after ABTS completes.
177 */
178 if (pcmd) {
179 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
180 list);
181 if (prsp) {
182 lp = (uint32_t *) prsp->virt;
183 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
184 }
185 } else {
186 /* Force ulpStatus error since we are returning NULL ptr */
187 if (!(irsp->ulpStatus)) {
188 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
189 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
190 }
191 ptr = NULL;
192 }
193 return ptr;
194 }
195
196
197
198 /*
199 * Free resources / clean up outstanding I/Os
200 * associated with a LPFC_NODELIST entry. This
201 * routine effectively results in a "software abort".
202 */
203 int
lpfc_els_abort(struct lpfc_hba * phba,struct lpfc_nodelist * ndlp)204 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
205 {
206 LIST_HEAD(completions);
207 LIST_HEAD(txcmplq_completions);
208 LIST_HEAD(abort_list);
209 struct lpfc_sli *psli = &phba->sli;
210 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
211 struct lpfc_iocbq *iocb, *next_iocb;
212
213 /* Abort outstanding I/O on NPort <nlp_DID> */
214 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
215 "2819 Abort outstanding I/O on NPort x%x "
216 "Data: x%x x%x x%x\n",
217 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
218 ndlp->nlp_rpi);
219
220 lpfc_fabric_abort_nport(ndlp);
221
222 /* First check the txq */
223 spin_lock_irq(&phba->hbalock);
224 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
225 /* Check to see if iocb matches the nport we are looking for */
226 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
227 /* It matches, so deque and call compl with anp error */
228 list_move_tail(&iocb->list, &completions);
229 pring->txq_cnt--;
230 }
231 }
232
233 /* Next check the txcmplq */
234 list_splice_init(&pring->txcmplq, &txcmplq_completions);
235 spin_unlock_irq(&phba->hbalock);
236
237 list_for_each_entry_safe(iocb, next_iocb, &txcmplq_completions, list) {
238 /* Check to see if iocb matches the nport we are looking for */
239 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
240 list_add_tail(&iocb->dlist, &abort_list);
241 }
242 spin_lock_irq(&phba->hbalock);
243 list_splice(&txcmplq_completions, &pring->txcmplq);
244 spin_unlock_irq(&phba->hbalock);
245
246 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
247 spin_lock_irq(&phba->hbalock);
248 list_del_init(&iocb->dlist);
249 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
250 spin_unlock_irq(&phba->hbalock);
251 }
252
253 /* Cancel all the IOCBs from the completions list */
254 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
255 IOERR_SLI_ABORTED);
256
257 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
258 return 0;
259 }
260
261 static int
lpfc_rcv_plogi(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,struct lpfc_iocbq * cmdiocb)262 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
263 struct lpfc_iocbq *cmdiocb)
264 {
265 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
266 struct lpfc_hba *phba = vport->phba;
267 struct lpfc_dmabuf *pcmd;
268 uint32_t *lp;
269 IOCB_t *icmd;
270 struct serv_parm *sp;
271 LPFC_MBOXQ_t *mbox;
272 struct ls_rjt stat;
273 int rc;
274
275 memset(&stat, 0, sizeof (struct ls_rjt));
276 if (vport->port_state <= LPFC_FDISC) {
277 /* Before responding to PLOGI, check for pt2pt mode.
278 * If we are pt2pt, with an outstanding FLOGI, abort
279 * the FLOGI and resend it first.
280 */
281 if (vport->fc_flag & FC_PT2PT) {
282 lpfc_els_abort_flogi(phba);
283 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
284 /* If the other side is supposed to initiate
285 * the PLOGI anyway, just ACC it now and
286 * move on with discovery.
287 */
288 phba->fc_edtov = FF_DEF_EDTOV;
289 phba->fc_ratov = FF_DEF_RATOV;
290 /* Start discovery - this should just do
291 CLEAR_LA */
292 lpfc_disc_start(vport);
293 } else
294 lpfc_initial_flogi(vport);
295 } else {
296 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
297 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
298 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
299 ndlp, NULL);
300 return 0;
301 }
302 }
303 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
304 lp = (uint32_t *) pcmd->virt;
305 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
306 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
307 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
308 "0140 PLOGI Reject: invalid nname\n");
309 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
310 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
311 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
312 NULL);
313 return 0;
314 }
315 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
316 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
317 "0141 PLOGI Reject: invalid pname\n");
318 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
319 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
320 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
321 NULL);
322 return 0;
323 }
324 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
325 /* Reject this request because invalid parameters */
326 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
327 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
328 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
329 NULL);
330 return 0;
331 }
332 icmd = &cmdiocb->iocb;
333
334 /* PLOGI chkparm OK */
335 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
336 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
337 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
338 ndlp->nlp_rpi);
339
340 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
341 ndlp->nlp_fcp_info |= CLASS2;
342 else
343 ndlp->nlp_fcp_info |= CLASS3;
344
345 ndlp->nlp_class_sup = 0;
346 if (sp->cls1.classValid)
347 ndlp->nlp_class_sup |= FC_COS_CLASS1;
348 if (sp->cls2.classValid)
349 ndlp->nlp_class_sup |= FC_COS_CLASS2;
350 if (sp->cls3.classValid)
351 ndlp->nlp_class_sup |= FC_COS_CLASS3;
352 if (sp->cls4.classValid)
353 ndlp->nlp_class_sup |= FC_COS_CLASS4;
354 ndlp->nlp_maxframe =
355 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
356
357 /* no need to reg_login if we are already in one of these states */
358 switch (ndlp->nlp_state) {
359 case NLP_STE_NPR_NODE:
360 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
361 break;
362 case NLP_STE_REG_LOGIN_ISSUE:
363 case NLP_STE_PRLI_ISSUE:
364 case NLP_STE_UNMAPPED_NODE:
365 case NLP_STE_MAPPED_NODE:
366 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
367 return 1;
368 }
369
370 if ((vport->fc_flag & FC_PT2PT) &&
371 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
372 /* rcv'ed PLOGI decides what our NPortId will be */
373 vport->fc_myDID = icmd->un.rcvels.parmRo;
374 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
375 if (mbox == NULL)
376 goto out;
377 lpfc_config_link(phba, mbox);
378 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
379 mbox->vport = vport;
380 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
381 if (rc == MBX_NOT_FINISHED) {
382 mempool_free(mbox, phba->mbox_mem_pool);
383 goto out;
384 }
385
386 lpfc_can_disctmo(vport);
387 }
388 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
389 if (!mbox)
390 goto out;
391
392 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
393 if (phba->sli_rev == LPFC_SLI_REV4)
394 lpfc_unreg_rpi(vport, ndlp);
395
396 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
397 (uint8_t *) sp, mbox, ndlp->nlp_rpi);
398 if (rc) {
399 mempool_free(mbox, phba->mbox_mem_pool);
400 goto out;
401 }
402
403 /* ACC PLOGI rsp command needs to execute first,
404 * queue this mbox command to be processed later.
405 */
406 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
407 /*
408 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
409 * command issued in lpfc_cmpl_els_acc().
410 */
411 mbox->vport = vport;
412 spin_lock_irq(shost->host_lock);
413 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
414 spin_unlock_irq(shost->host_lock);
415
416 /*
417 * If there is an outstanding PLOGI issued, abort it before
418 * sending ACC rsp for received PLOGI. If pending plogi
419 * is not canceled here, the plogi will be rejected by
420 * remote port and will be retried. On a configuration with
421 * single discovery thread, this will cause a huge delay in
422 * discovery. Also this will cause multiple state machines
423 * running in parallel for this node.
424 */
425 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
426 /* software abort outstanding PLOGI */
427 lpfc_els_abort(phba, ndlp);
428 }
429
430 if ((vport->port_type == LPFC_NPIV_PORT &&
431 vport->cfg_restrict_login)) {
432
433 /* In order to preserve RPIs, we want to cleanup
434 * the default RPI the firmware created to rcv
435 * this ELS request. The only way to do this is
436 * to register, then unregister the RPI.
437 */
438 spin_lock_irq(shost->host_lock);
439 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
440 spin_unlock_irq(shost->host_lock);
441 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
442 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
443 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
444 ndlp, mbox);
445 if (rc)
446 mempool_free(mbox, phba->mbox_mem_pool);
447 return 1;
448 }
449 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
450 if (rc)
451 mempool_free(mbox, phba->mbox_mem_pool);
452 return 1;
453 out:
454 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
455 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
456 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
457 return 0;
458 }
459
460 /**
461 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
462 * @phba: pointer to lpfc hba data structure.
463 * @mboxq: pointer to mailbox object
464 *
465 * This routine is invoked to issue a completion to a rcv'ed
466 * ADISC or PDISC after the paused RPI has been resumed.
467 **/
468 static void
lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba * phba,LPFC_MBOXQ_t * mboxq)469 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
470 {
471 struct lpfc_vport *vport;
472 struct lpfc_iocbq *elsiocb;
473 struct lpfc_nodelist *ndlp;
474 uint32_t cmd;
475
476 elsiocb = (struct lpfc_iocbq *)mboxq->context1;
477 ndlp = (struct lpfc_nodelist *) mboxq->context2;
478 vport = mboxq->vport;
479 cmd = elsiocb->drvrTimeout;
480
481 if (cmd == ELS_CMD_ADISC) {
482 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
483 } else {
484 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
485 ndlp, NULL);
486 }
487 kfree(elsiocb);
488 mempool_free(mboxq, phba->mbox_mem_pool);
489 }
490
491 static int
lpfc_rcv_padisc(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,struct lpfc_iocbq * cmdiocb)492 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
493 struct lpfc_iocbq *cmdiocb)
494 {
495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
496 struct lpfc_iocbq *elsiocb;
497 struct lpfc_dmabuf *pcmd;
498 struct serv_parm *sp;
499 struct lpfc_name *pnn, *ppn;
500 struct ls_rjt stat;
501 ADISC *ap;
502 IOCB_t *icmd;
503 uint32_t *lp;
504 uint32_t cmd;
505
506 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
507 lp = (uint32_t *) pcmd->virt;
508
509 cmd = *lp++;
510 if (cmd == ELS_CMD_ADISC) {
511 ap = (ADISC *) lp;
512 pnn = (struct lpfc_name *) & ap->nodeName;
513 ppn = (struct lpfc_name *) & ap->portName;
514 } else {
515 sp = (struct serv_parm *) lp;
516 pnn = (struct lpfc_name *) & sp->nodeName;
517 ppn = (struct lpfc_name *) & sp->portName;
518 }
519
520 icmd = &cmdiocb->iocb;
521 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
522
523 /*
524 * As soon as we send ACC, the remote NPort can
525 * start sending us data. Thus, for SLI4 we must
526 * resume the RPI before the ACC goes out.
527 */
528 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
529 elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
530 GFP_KERNEL);
531 if (elsiocb) {
532
533 /* Save info from cmd IOCB used in rsp */
534 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
535 sizeof(struct lpfc_iocbq));
536
537 /* Save the ELS cmd */
538 elsiocb->drvrTimeout = cmd;
539
540 lpfc_sli4_resume_rpi(ndlp,
541 lpfc_mbx_cmpl_resume_rpi, elsiocb);
542 goto out;
543 }
544 }
545
546 if (cmd == ELS_CMD_ADISC) {
547 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
548 } else {
549 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
550 ndlp, NULL);
551 }
552 out:
553 /* If we are authenticated, move to the proper state */
554 if (ndlp->nlp_type & NLP_FCP_TARGET)
555 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
556 else
557 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
558
559 return 1;
560 }
561 /* Reject this request because invalid parameters */
562 stat.un.b.lsRjtRsvd0 = 0;
563 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
564 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
565 stat.un.b.vendorUnique = 0;
566 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
567
568 /* 1 sec timeout */
569 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
570
571 spin_lock_irq(shost->host_lock);
572 ndlp->nlp_flag |= NLP_DELAY_TMO;
573 spin_unlock_irq(shost->host_lock);
574 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
575 ndlp->nlp_prev_state = ndlp->nlp_state;
576 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
577 return 0;
578 }
579
580 static int
lpfc_rcv_logo(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,struct lpfc_iocbq * cmdiocb,uint32_t els_cmd)581 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
582 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
583 {
584 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
585 struct lpfc_hba *phba = vport->phba;
586 struct lpfc_vport **vports;
587 int i, active_vlink_present = 0 ;
588
589 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
590 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
591 * PLOGIs during LOGO storms from a device.
592 */
593 spin_lock_irq(shost->host_lock);
594 ndlp->nlp_flag |= NLP_LOGO_ACC;
595 spin_unlock_irq(shost->host_lock);
596 if (els_cmd == ELS_CMD_PRLO)
597 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
598 else
599 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
600 if (ndlp->nlp_DID == Fabric_DID) {
601 if (vport->port_state <= LPFC_FDISC)
602 goto out;
603 lpfc_linkdown_port(vport);
604 spin_lock_irq(shost->host_lock);
605 vport->fc_flag |= FC_VPORT_LOGO_RCVD;
606 spin_unlock_irq(shost->host_lock);
607 vports = lpfc_create_vport_work_array(phba);
608 if (vports) {
609 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
610 i++) {
611 if ((!(vports[i]->fc_flag &
612 FC_VPORT_LOGO_RCVD)) &&
613 (vports[i]->port_state > LPFC_FDISC)) {
614 active_vlink_present = 1;
615 break;
616 }
617 }
618 lpfc_destroy_vport_work_array(phba, vports);
619 }
620
621 if (active_vlink_present) {
622 /*
623 * If there are other active VLinks present,
624 * re-instantiate the Vlink using FDISC.
625 */
626 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
627 spin_lock_irq(shost->host_lock);
628 ndlp->nlp_flag |= NLP_DELAY_TMO;
629 spin_unlock_irq(shost->host_lock);
630 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
631 vport->port_state = LPFC_FDISC;
632 } else {
633 spin_lock_irq(shost->host_lock);
634 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
635 spin_unlock_irq(shost->host_lock);
636 lpfc_retry_pport_discovery(phba);
637 }
638 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
639 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
640 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
641 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
642 /* Only try to re-login if this is NOT a Fabric Node */
643 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
644 spin_lock_irq(shost->host_lock);
645 ndlp->nlp_flag |= NLP_DELAY_TMO;
646 spin_unlock_irq(shost->host_lock);
647
648 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
649 }
650 out:
651 ndlp->nlp_prev_state = ndlp->nlp_state;
652 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
653
654 spin_lock_irq(shost->host_lock);
655 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
656 spin_unlock_irq(shost->host_lock);
657 /* The driver has to wait until the ACC completes before it continues
658 * processing the LOGO. The action will resume in
659 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
660 * unreg_login, the driver waits so the ACC does not get aborted.
661 */
662 return 0;
663 }
664
665 static void
lpfc_rcv_prli(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,struct lpfc_iocbq * cmdiocb)666 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
667 struct lpfc_iocbq *cmdiocb)
668 {
669 struct lpfc_dmabuf *pcmd;
670 uint32_t *lp;
671 PRLI *npr;
672 struct fc_rport *rport = ndlp->rport;
673 u32 roles;
674
675 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
676 lp = (uint32_t *) pcmd->virt;
677 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
678
679 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
680 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
681 if (npr->prliType == PRLI_FCP_TYPE) {
682 if (npr->initiatorFunc)
683 ndlp->nlp_type |= NLP_FCP_INITIATOR;
684 if (npr->targetFunc)
685 ndlp->nlp_type |= NLP_FCP_TARGET;
686 if (npr->Retry)
687 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
688 }
689 if (rport) {
690 /* We need to update the rport role values */
691 roles = FC_RPORT_ROLE_UNKNOWN;
692 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
693 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
694 if (ndlp->nlp_type & NLP_FCP_TARGET)
695 roles |= FC_RPORT_ROLE_FCP_TARGET;
696
697 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
698 "rport rolechg: role:x%x did:x%x flg:x%x",
699 roles, ndlp->nlp_DID, ndlp->nlp_flag);
700
701 fc_remote_port_rolechg(rport, roles);
702 }
703 }
704
705 static uint32_t
lpfc_disc_set_adisc(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp)706 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
707 {
708 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
709
710 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
711 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
712 return 0;
713 }
714
715 if (!(vport->fc_flag & FC_PT2PT)) {
716 /* Check config parameter use-adisc or FCP-2 */
717 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
718 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
719 (ndlp->nlp_type & NLP_FCP_TARGET))) {
720 spin_lock_irq(shost->host_lock);
721 ndlp->nlp_flag |= NLP_NPR_ADISC;
722 spin_unlock_irq(shost->host_lock);
723 return 1;
724 }
725 }
726 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
727 lpfc_unreg_rpi(vport, ndlp);
728 return 0;
729 }
730
731 /**
732 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
733 * @phba : Pointer to lpfc_hba structure.
734 * @vport: Pointer to lpfc_vport structure.
735 * @rpi : rpi to be release.
736 *
737 * This function will send a unreg_login mailbox command to the firmware
738 * to release a rpi.
739 **/
740 void
lpfc_release_rpi(struct lpfc_hba * phba,struct lpfc_vport * vport,uint16_t rpi)741 lpfc_release_rpi(struct lpfc_hba *phba,
742 struct lpfc_vport *vport,
743 uint16_t rpi)
744 {
745 LPFC_MBOXQ_t *pmb;
746 int rc;
747
748 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
749 GFP_KERNEL);
750 if (!pmb)
751 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
752 "2796 mailbox memory allocation failed \n");
753 else {
754 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
755 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
756 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
757 if (rc == MBX_NOT_FINISHED)
758 mempool_free(pmb, phba->mbox_mem_pool);
759 }
760 }
761
762 static uint32_t
lpfc_disc_illegal(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)763 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
764 void *arg, uint32_t evt)
765 {
766 struct lpfc_hba *phba;
767 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
768 MAILBOX_t *mb;
769 uint16_t rpi;
770
771 phba = vport->phba;
772 /* Release the RPI if reglogin completing */
773 if (!(phba->pport->load_flag & FC_UNLOADING) &&
774 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
775 (!pmb->u.mb.mbxStatus)) {
776 mb = &pmb->u.mb;
777 rpi = pmb->u.mb.un.varWords[0];
778 lpfc_release_rpi(phba, vport, rpi);
779 }
780 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
781 "0271 Illegal State Transition: node x%x "
782 "event x%x, state x%x Data: x%x x%x\n",
783 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
784 ndlp->nlp_flag);
785 return ndlp->nlp_state;
786 }
787
788 static uint32_t
lpfc_cmpl_plogi_illegal(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)789 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
790 void *arg, uint32_t evt)
791 {
792 /* This transition is only legal if we previously
793 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
794 * working on the same NPortID, do nothing for this thread
795 * to stop it.
796 */
797 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
798 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
799 "0272 Illegal State Transition: node x%x "
800 "event x%x, state x%x Data: x%x x%x\n",
801 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
802 ndlp->nlp_flag);
803 }
804 return ndlp->nlp_state;
805 }
806
807 /* Start of Discovery State Machine routines */
808
809 static uint32_t
lpfc_rcv_plogi_unused_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)810 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
811 void *arg, uint32_t evt)
812 {
813 struct lpfc_iocbq *cmdiocb;
814
815 cmdiocb = (struct lpfc_iocbq *) arg;
816
817 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
818 return ndlp->nlp_state;
819 }
820 return NLP_STE_FREED_NODE;
821 }
822
823 static uint32_t
lpfc_rcv_els_unused_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)824 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
825 void *arg, uint32_t evt)
826 {
827 lpfc_issue_els_logo(vport, ndlp, 0);
828 return ndlp->nlp_state;
829 }
830
831 static uint32_t
lpfc_rcv_logo_unused_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)832 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
833 void *arg, uint32_t evt)
834 {
835 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
836 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
837
838 spin_lock_irq(shost->host_lock);
839 ndlp->nlp_flag |= NLP_LOGO_ACC;
840 spin_unlock_irq(shost->host_lock);
841 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
842
843 return ndlp->nlp_state;
844 }
845
846 static uint32_t
lpfc_cmpl_logo_unused_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)847 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
848 void *arg, uint32_t evt)
849 {
850 return NLP_STE_FREED_NODE;
851 }
852
853 static uint32_t
lpfc_device_rm_unused_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)854 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
855 void *arg, uint32_t evt)
856 {
857 return NLP_STE_FREED_NODE;
858 }
859
860 static uint32_t
lpfc_device_recov_unused_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)861 lpfc_device_recov_unused_node(struct lpfc_vport *vport,
862 struct lpfc_nodelist *ndlp,
863 void *arg, uint32_t evt)
864 {
865 return ndlp->nlp_state;
866 }
867
868 static uint32_t
lpfc_rcv_plogi_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)869 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
870 void *arg, uint32_t evt)
871 {
872 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
873 struct lpfc_hba *phba = vport->phba;
874 struct lpfc_iocbq *cmdiocb = arg;
875 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
876 uint32_t *lp = (uint32_t *) pcmd->virt;
877 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
878 struct ls_rjt stat;
879 int port_cmp;
880
881 memset(&stat, 0, sizeof (struct ls_rjt));
882
883 /* For a PLOGI, we only accept if our portname is less
884 * than the remote portname.
885 */
886 phba->fc_stat.elsLogiCol++;
887 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
888 sizeof(struct lpfc_name));
889
890 if (port_cmp >= 0) {
891 /* Reject this request because the remote node will accept
892 ours */
893 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
894 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
895 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
896 NULL);
897 } else {
898 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
899 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
900 (vport->num_disc_nodes)) {
901 spin_lock_irq(shost->host_lock);
902 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
903 spin_unlock_irq(shost->host_lock);
904 /* Check if there are more PLOGIs to be sent */
905 lpfc_more_plogi(vport);
906 if (vport->num_disc_nodes == 0) {
907 spin_lock_irq(shost->host_lock);
908 vport->fc_flag &= ~FC_NDISC_ACTIVE;
909 spin_unlock_irq(shost->host_lock);
910 lpfc_can_disctmo(vport);
911 lpfc_end_rscn(vport);
912 }
913 }
914 } /* If our portname was less */
915
916 return ndlp->nlp_state;
917 }
918
919 static uint32_t
lpfc_rcv_prli_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)920 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
921 void *arg, uint32_t evt)
922 {
923 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
924 struct ls_rjt stat;
925
926 memset(&stat, 0, sizeof (struct ls_rjt));
927 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
928 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
929 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
930 return ndlp->nlp_state;
931 }
932
933 static uint32_t
lpfc_rcv_logo_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)934 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
935 void *arg, uint32_t evt)
936 {
937 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
938
939 /* software abort outstanding PLOGI */
940 lpfc_els_abort(vport->phba, ndlp);
941
942 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
943 return ndlp->nlp_state;
944 }
945
946 static uint32_t
lpfc_rcv_els_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)947 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
948 void *arg, uint32_t evt)
949 {
950 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
951 struct lpfc_hba *phba = vport->phba;
952 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
953
954 /* software abort outstanding PLOGI */
955 lpfc_els_abort(phba, ndlp);
956
957 if (evt == NLP_EVT_RCV_LOGO) {
958 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
959 } else {
960 lpfc_issue_els_logo(vport, ndlp, 0);
961 }
962
963 /* Put ndlp in npr state set plogi timer for 1 sec */
964 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
965 spin_lock_irq(shost->host_lock);
966 ndlp->nlp_flag |= NLP_DELAY_TMO;
967 spin_unlock_irq(shost->host_lock);
968 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
969 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
970 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
971
972 return ndlp->nlp_state;
973 }
974
975 static uint32_t
lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)976 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
977 struct lpfc_nodelist *ndlp,
978 void *arg,
979 uint32_t evt)
980 {
981 struct lpfc_hba *phba = vport->phba;
982 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
983 struct lpfc_iocbq *cmdiocb, *rspiocb;
984 struct lpfc_dmabuf *pcmd, *prsp, *mp;
985 uint32_t *lp;
986 IOCB_t *irsp;
987 struct serv_parm *sp;
988 LPFC_MBOXQ_t *mbox;
989
990 cmdiocb = (struct lpfc_iocbq *) arg;
991 rspiocb = cmdiocb->context_un.rsp_iocb;
992
993 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
994 /* Recovery from PLOGI collision logic */
995 return ndlp->nlp_state;
996 }
997
998 irsp = &rspiocb->iocb;
999
1000 if (irsp->ulpStatus)
1001 goto out;
1002
1003 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1004
1005 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1006
1007 lp = (uint32_t *) prsp->virt;
1008 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
1009
1010 /* Some switches have FDMI servers returning 0 for WWN */
1011 if ((ndlp->nlp_DID != FDMI_DID) &&
1012 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1013 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
1014 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1015 "0142 PLOGI RSP: Invalid WWN.\n");
1016 goto out;
1017 }
1018 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
1019 goto out;
1020 /* PLOGI chkparm OK */
1021 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1022 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1023 ndlp->nlp_DID, ndlp->nlp_state,
1024 ndlp->nlp_flag, ndlp->nlp_rpi);
1025 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
1026 ndlp->nlp_fcp_info |= CLASS2;
1027 else
1028 ndlp->nlp_fcp_info |= CLASS3;
1029
1030 ndlp->nlp_class_sup = 0;
1031 if (sp->cls1.classValid)
1032 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1033 if (sp->cls2.classValid)
1034 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1035 if (sp->cls3.classValid)
1036 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1037 if (sp->cls4.classValid)
1038 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1039 ndlp->nlp_maxframe =
1040 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
1041
1042 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1043 if (!mbox) {
1044 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1045 "0133 PLOGI: no memory for reg_login "
1046 "Data: x%x x%x x%x x%x\n",
1047 ndlp->nlp_DID, ndlp->nlp_state,
1048 ndlp->nlp_flag, ndlp->nlp_rpi);
1049 goto out;
1050 }
1051
1052 lpfc_unreg_rpi(vport, ndlp);
1053
1054 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
1055 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
1056 switch (ndlp->nlp_DID) {
1057 case NameServer_DID:
1058 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
1059 break;
1060 case FDMI_DID:
1061 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
1062 break;
1063 default:
1064 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
1065 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1066 }
1067 mbox->context2 = lpfc_nlp_get(ndlp);
1068 mbox->vport = vport;
1069 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
1070 != MBX_NOT_FINISHED) {
1071 lpfc_nlp_set_state(vport, ndlp,
1072 NLP_STE_REG_LOGIN_ISSUE);
1073 return ndlp->nlp_state;
1074 }
1075 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1076 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
1077 /* decrement node reference count to the failed mbox
1078 * command
1079 */
1080 lpfc_nlp_put(ndlp);
1081 mp = (struct lpfc_dmabuf *) mbox->context1;
1082 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1083 kfree(mp);
1084 mempool_free(mbox, phba->mbox_mem_pool);
1085
1086 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1087 "0134 PLOGI: cannot issue reg_login "
1088 "Data: x%x x%x x%x x%x\n",
1089 ndlp->nlp_DID, ndlp->nlp_state,
1090 ndlp->nlp_flag, ndlp->nlp_rpi);
1091 } else {
1092 mempool_free(mbox, phba->mbox_mem_pool);
1093
1094 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1095 "0135 PLOGI: cannot format reg_login "
1096 "Data: x%x x%x x%x x%x\n",
1097 ndlp->nlp_DID, ndlp->nlp_state,
1098 ndlp->nlp_flag, ndlp->nlp_rpi);
1099 }
1100
1101
1102 out:
1103 if (ndlp->nlp_DID == NameServer_DID) {
1104 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1105 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1106 "0261 Cannot Register NameServer login\n");
1107 }
1108
1109 spin_lock_irq(shost->host_lock);
1110 ndlp->nlp_flag |= NLP_DEFER_RM;
1111 spin_unlock_irq(shost->host_lock);
1112 return NLP_STE_FREED_NODE;
1113 }
1114
1115 static uint32_t
lpfc_cmpl_logo_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1116 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1117 void *arg, uint32_t evt)
1118 {
1119 return ndlp->nlp_state;
1120 }
1121
1122 static uint32_t
lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1123 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1124 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1125 {
1126 struct lpfc_hba *phba;
1127 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1128 MAILBOX_t *mb = &pmb->u.mb;
1129 uint16_t rpi;
1130
1131 phba = vport->phba;
1132 /* Release the RPI */
1133 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1134 !mb->mbxStatus) {
1135 rpi = pmb->u.mb.un.varWords[0];
1136 lpfc_release_rpi(phba, vport, rpi);
1137 }
1138 return ndlp->nlp_state;
1139 }
1140
1141 static uint32_t
lpfc_device_rm_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1142 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1143 void *arg, uint32_t evt)
1144 {
1145 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1146
1147 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1148 spin_lock_irq(shost->host_lock);
1149 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1150 spin_unlock_irq(shost->host_lock);
1151 return ndlp->nlp_state;
1152 } else {
1153 /* software abort outstanding PLOGI */
1154 lpfc_els_abort(vport->phba, ndlp);
1155
1156 lpfc_drop_node(vport, ndlp);
1157 return NLP_STE_FREED_NODE;
1158 }
1159 }
1160
1161 static uint32_t
lpfc_device_recov_plogi_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1162 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1163 struct lpfc_nodelist *ndlp,
1164 void *arg,
1165 uint32_t evt)
1166 {
1167 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1168 struct lpfc_hba *phba = vport->phba;
1169
1170 /* Don't do anything that will mess up processing of the
1171 * previous RSCN.
1172 */
1173 if (vport->fc_flag & FC_RSCN_DEFERRED)
1174 return ndlp->nlp_state;
1175
1176 /* software abort outstanding PLOGI */
1177 lpfc_els_abort(phba, ndlp);
1178
1179 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
1180 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1181 spin_lock_irq(shost->host_lock);
1182 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1183 spin_unlock_irq(shost->host_lock);
1184
1185 return ndlp->nlp_state;
1186 }
1187
1188 static uint32_t
lpfc_rcv_plogi_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1189 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1190 void *arg, uint32_t evt)
1191 {
1192 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1193 struct lpfc_hba *phba = vport->phba;
1194 struct lpfc_iocbq *cmdiocb;
1195
1196 /* software abort outstanding ADISC */
1197 lpfc_els_abort(phba, ndlp);
1198
1199 cmdiocb = (struct lpfc_iocbq *) arg;
1200
1201 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1202 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1203 spin_lock_irq(shost->host_lock);
1204 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1205 spin_unlock_irq(shost->host_lock);
1206 if (vport->num_disc_nodes)
1207 lpfc_more_adisc(vport);
1208 }
1209 return ndlp->nlp_state;
1210 }
1211 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1212 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1213 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1214
1215 return ndlp->nlp_state;
1216 }
1217
1218 static uint32_t
lpfc_rcv_prli_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1219 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1220 void *arg, uint32_t evt)
1221 {
1222 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1223
1224 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1225 return ndlp->nlp_state;
1226 }
1227
1228 static uint32_t
lpfc_rcv_logo_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1229 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1230 void *arg, uint32_t evt)
1231 {
1232 struct lpfc_hba *phba = vport->phba;
1233 struct lpfc_iocbq *cmdiocb;
1234
1235 cmdiocb = (struct lpfc_iocbq *) arg;
1236
1237 /* software abort outstanding ADISC */
1238 lpfc_els_abort(phba, ndlp);
1239
1240 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1241 return ndlp->nlp_state;
1242 }
1243
1244 static uint32_t
lpfc_rcv_padisc_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1245 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1246 struct lpfc_nodelist *ndlp,
1247 void *arg, uint32_t evt)
1248 {
1249 struct lpfc_iocbq *cmdiocb;
1250
1251 cmdiocb = (struct lpfc_iocbq *) arg;
1252
1253 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1254 return ndlp->nlp_state;
1255 }
1256
1257 static uint32_t
lpfc_rcv_prlo_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1258 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1259 void *arg, uint32_t evt)
1260 {
1261 struct lpfc_iocbq *cmdiocb;
1262
1263 cmdiocb = (struct lpfc_iocbq *) arg;
1264
1265 /* Treat like rcv logo */
1266 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1267 return ndlp->nlp_state;
1268 }
1269
1270 static uint32_t
lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1271 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1272 struct lpfc_nodelist *ndlp,
1273 void *arg, uint32_t evt)
1274 {
1275 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1276 struct lpfc_hba *phba = vport->phba;
1277 struct lpfc_iocbq *cmdiocb, *rspiocb;
1278 IOCB_t *irsp;
1279 ADISC *ap;
1280 int rc;
1281
1282 cmdiocb = (struct lpfc_iocbq *) arg;
1283 rspiocb = cmdiocb->context_un.rsp_iocb;
1284
1285 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1286 irsp = &rspiocb->iocb;
1287
1288 if ((irsp->ulpStatus) ||
1289 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1290 /* 1 sec timeout */
1291 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1292 spin_lock_irq(shost->host_lock);
1293 ndlp->nlp_flag |= NLP_DELAY_TMO;
1294 spin_unlock_irq(shost->host_lock);
1295 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1296
1297 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1298 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1299
1300 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1301 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1302 lpfc_unreg_rpi(vport, ndlp);
1303 return ndlp->nlp_state;
1304 }
1305
1306 if (phba->sli_rev == LPFC_SLI_REV4) {
1307 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
1308 if (rc) {
1309 /* Stay in state and retry. */
1310 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1311 return ndlp->nlp_state;
1312 }
1313 }
1314
1315 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1316 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1317 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1318 } else {
1319 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1320 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1321 }
1322
1323 return ndlp->nlp_state;
1324 }
1325
1326 static uint32_t
lpfc_device_rm_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1327 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1328 void *arg, uint32_t evt)
1329 {
1330 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1331
1332 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1333 spin_lock_irq(shost->host_lock);
1334 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1335 spin_unlock_irq(shost->host_lock);
1336 return ndlp->nlp_state;
1337 } else {
1338 /* software abort outstanding ADISC */
1339 lpfc_els_abort(vport->phba, ndlp);
1340
1341 lpfc_drop_node(vport, ndlp);
1342 return NLP_STE_FREED_NODE;
1343 }
1344 }
1345
1346 static uint32_t
lpfc_device_recov_adisc_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1347 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1348 struct lpfc_nodelist *ndlp,
1349 void *arg,
1350 uint32_t evt)
1351 {
1352 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1353 struct lpfc_hba *phba = vport->phba;
1354
1355 /* Don't do anything that will mess up processing of the
1356 * previous RSCN.
1357 */
1358 if (vport->fc_flag & FC_RSCN_DEFERRED)
1359 return ndlp->nlp_state;
1360
1361 /* software abort outstanding ADISC */
1362 lpfc_els_abort(phba, ndlp);
1363
1364 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1365 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1366 spin_lock_irq(shost->host_lock);
1367 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1368 spin_unlock_irq(shost->host_lock);
1369 lpfc_disc_set_adisc(vport, ndlp);
1370 return ndlp->nlp_state;
1371 }
1372
1373 static uint32_t
lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1374 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1375 struct lpfc_nodelist *ndlp,
1376 void *arg,
1377 uint32_t evt)
1378 {
1379 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1380
1381 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1382 return ndlp->nlp_state;
1383 }
1384
1385 static uint32_t
lpfc_rcv_prli_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1386 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1387 struct lpfc_nodelist *ndlp,
1388 void *arg,
1389 uint32_t evt)
1390 {
1391 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1392
1393 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1394 return ndlp->nlp_state;
1395 }
1396
1397 static uint32_t
lpfc_rcv_logo_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1398 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1399 struct lpfc_nodelist *ndlp,
1400 void *arg,
1401 uint32_t evt)
1402 {
1403 struct lpfc_hba *phba = vport->phba;
1404 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1405 LPFC_MBOXQ_t *mb;
1406 LPFC_MBOXQ_t *nextmb;
1407 struct lpfc_dmabuf *mp;
1408
1409 cmdiocb = (struct lpfc_iocbq *) arg;
1410
1411 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1412 if ((mb = phba->sli.mbox_active)) {
1413 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1414 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1415 lpfc_nlp_put(ndlp);
1416 mb->context2 = NULL;
1417 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1418 }
1419 }
1420
1421 spin_lock_irq(&phba->hbalock);
1422 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1423 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1424 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1425 mp = (struct lpfc_dmabuf *) (mb->context1);
1426 if (mp) {
1427 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1428 kfree(mp);
1429 }
1430 lpfc_nlp_put(ndlp);
1431 list_del(&mb->list);
1432 phba->sli.mboxq_cnt--;
1433 mempool_free(mb, phba->mbox_mem_pool);
1434 }
1435 }
1436 spin_unlock_irq(&phba->hbalock);
1437
1438 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1439 return ndlp->nlp_state;
1440 }
1441
1442 static uint32_t
lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1443 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1444 struct lpfc_nodelist *ndlp,
1445 void *arg,
1446 uint32_t evt)
1447 {
1448 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1449
1450 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1451 return ndlp->nlp_state;
1452 }
1453
1454 static uint32_t
lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1455 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1456 struct lpfc_nodelist *ndlp,
1457 void *arg,
1458 uint32_t evt)
1459 {
1460 struct lpfc_iocbq *cmdiocb;
1461
1462 cmdiocb = (struct lpfc_iocbq *) arg;
1463 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1464 return ndlp->nlp_state;
1465 }
1466
1467 static uint32_t
lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1468 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1469 struct lpfc_nodelist *ndlp,
1470 void *arg,
1471 uint32_t evt)
1472 {
1473 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1474 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1475 MAILBOX_t *mb = &pmb->u.mb;
1476 uint32_t did = mb->un.varWords[1];
1477
1478 if (mb->mbxStatus) {
1479 /* RegLogin failed */
1480 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1481 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1482 "x%x\n",
1483 did, mb->mbxStatus, vport->port_state,
1484 mb->un.varRegLogin.vpi,
1485 mb->un.varRegLogin.rpi);
1486 /*
1487 * If RegLogin failed due to lack of HBA resources do not
1488 * retry discovery.
1489 */
1490 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1491 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1492 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1493 return ndlp->nlp_state;
1494 }
1495
1496 /* Put ndlp in npr state set plogi timer for 1 sec */
1497 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1498 spin_lock_irq(shost->host_lock);
1499 ndlp->nlp_flag |= NLP_DELAY_TMO;
1500 spin_unlock_irq(shost->host_lock);
1501 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1502
1503 lpfc_issue_els_logo(vport, ndlp, 0);
1504 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1505 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1506 return ndlp->nlp_state;
1507 }
1508
1509 /* SLI4 ports have preallocated logical rpis. */
1510 if (vport->phba->sli_rev < LPFC_SLI_REV4)
1511 ndlp->nlp_rpi = mb->un.varWords[0];
1512
1513 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1514
1515 /* Only if we are not a fabric nport do we issue PRLI */
1516 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1517 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1518 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1519 lpfc_issue_els_prli(vport, ndlp, 0);
1520 } else {
1521 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1522 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1523 }
1524 return ndlp->nlp_state;
1525 }
1526
1527 static uint32_t
lpfc_device_rm_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1528 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1529 struct lpfc_nodelist *ndlp,
1530 void *arg,
1531 uint32_t evt)
1532 {
1533 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1534
1535 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1536 spin_lock_irq(shost->host_lock);
1537 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1538 spin_unlock_irq(shost->host_lock);
1539 return ndlp->nlp_state;
1540 } else {
1541 lpfc_drop_node(vport, ndlp);
1542 return NLP_STE_FREED_NODE;
1543 }
1544 }
1545
1546 static uint32_t
lpfc_device_recov_reglogin_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1547 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1548 struct lpfc_nodelist *ndlp,
1549 void *arg,
1550 uint32_t evt)
1551 {
1552 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1553
1554 /* Don't do anything that will mess up processing of the
1555 * previous RSCN.
1556 */
1557 if (vport->fc_flag & FC_RSCN_DEFERRED)
1558 return ndlp->nlp_state;
1559
1560 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1561 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1562 spin_lock_irq(shost->host_lock);
1563 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
1564 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1565 spin_unlock_irq(shost->host_lock);
1566 lpfc_disc_set_adisc(vport, ndlp);
1567 return ndlp->nlp_state;
1568 }
1569
1570 static uint32_t
lpfc_rcv_plogi_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1571 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1572 void *arg, uint32_t evt)
1573 {
1574 struct lpfc_iocbq *cmdiocb;
1575
1576 cmdiocb = (struct lpfc_iocbq *) arg;
1577
1578 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1579 return ndlp->nlp_state;
1580 }
1581
1582 static uint32_t
lpfc_rcv_prli_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1583 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1584 void *arg, uint32_t evt)
1585 {
1586 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1587
1588 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1589 return ndlp->nlp_state;
1590 }
1591
1592 static uint32_t
lpfc_rcv_logo_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1593 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1594 void *arg, uint32_t evt)
1595 {
1596 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1597
1598 /* Software abort outstanding PRLI before sending acc */
1599 lpfc_els_abort(vport->phba, ndlp);
1600
1601 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1602 return ndlp->nlp_state;
1603 }
1604
1605 static uint32_t
lpfc_rcv_padisc_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1606 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1607 void *arg, uint32_t evt)
1608 {
1609 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1610
1611 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1612 return ndlp->nlp_state;
1613 }
1614
1615 /* This routine is envoked when we rcv a PRLO request from a nport
1616 * we are logged into. We should send back a PRLO rsp setting the
1617 * appropriate bits.
1618 * NEXT STATE = PRLI_ISSUE
1619 */
1620 static uint32_t
lpfc_rcv_prlo_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1621 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1622 void *arg, uint32_t evt)
1623 {
1624 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1625
1626 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1627 return ndlp->nlp_state;
1628 }
1629
1630 static uint32_t
lpfc_cmpl_prli_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1631 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1632 void *arg, uint32_t evt)
1633 {
1634 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1635 struct lpfc_iocbq *cmdiocb, *rspiocb;
1636 struct lpfc_hba *phba = vport->phba;
1637 IOCB_t *irsp;
1638 PRLI *npr;
1639
1640 cmdiocb = (struct lpfc_iocbq *) arg;
1641 rspiocb = cmdiocb->context_un.rsp_iocb;
1642 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1643
1644 irsp = &rspiocb->iocb;
1645 if (irsp->ulpStatus) {
1646 if ((vport->port_type == LPFC_NPIV_PORT) &&
1647 vport->cfg_restrict_login) {
1648 goto out;
1649 }
1650 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1651 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1652 return ndlp->nlp_state;
1653 }
1654
1655 /* Check out PRLI rsp */
1656 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1657 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1658 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1659 (npr->prliType == PRLI_FCP_TYPE)) {
1660 if (npr->initiatorFunc)
1661 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1662 if (npr->targetFunc)
1663 ndlp->nlp_type |= NLP_FCP_TARGET;
1664 if (npr->Retry)
1665 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1666 }
1667 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1668 (vport->port_type == LPFC_NPIV_PORT) &&
1669 vport->cfg_restrict_login) {
1670 out:
1671 spin_lock_irq(shost->host_lock);
1672 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1673 spin_unlock_irq(shost->host_lock);
1674 lpfc_issue_els_logo(vport, ndlp, 0);
1675
1676 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1677 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1678 return ndlp->nlp_state;
1679 }
1680
1681 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1682 if (ndlp->nlp_type & NLP_FCP_TARGET)
1683 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1684 else
1685 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1686 return ndlp->nlp_state;
1687 }
1688
1689 /*! lpfc_device_rm_prli_issue
1690 *
1691 * \pre
1692 * \post
1693 * \param phba
1694 * \param ndlp
1695 * \param arg
1696 * \param evt
1697 * \return uint32_t
1698 *
1699 * \b Description:
1700 * This routine is envoked when we a request to remove a nport we are in the
1701 * process of PRLIing. We should software abort outstanding prli, unreg
1702 * login, send a logout. We will change node state to UNUSED_NODE, put it
1703 * on plogi list so it can be freed when LOGO completes.
1704 *
1705 */
1706
1707 static uint32_t
lpfc_device_rm_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1708 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1709 void *arg, uint32_t evt)
1710 {
1711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1712
1713 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1714 spin_lock_irq(shost->host_lock);
1715 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1716 spin_unlock_irq(shost->host_lock);
1717 return ndlp->nlp_state;
1718 } else {
1719 /* software abort outstanding PLOGI */
1720 lpfc_els_abort(vport->phba, ndlp);
1721
1722 lpfc_drop_node(vport, ndlp);
1723 return NLP_STE_FREED_NODE;
1724 }
1725 }
1726
1727
1728 /*! lpfc_device_recov_prli_issue
1729 *
1730 * \pre
1731 * \post
1732 * \param phba
1733 * \param ndlp
1734 * \param arg
1735 * \param evt
1736 * \return uint32_t
1737 *
1738 * \b Description:
1739 * The routine is envoked when the state of a device is unknown, like
1740 * during a link down. We should remove the nodelist entry from the
1741 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1742 * outstanding PRLI command, then free the node entry.
1743 */
1744 static uint32_t
lpfc_device_recov_prli_issue(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1745 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1746 struct lpfc_nodelist *ndlp,
1747 void *arg,
1748 uint32_t evt)
1749 {
1750 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1751 struct lpfc_hba *phba = vport->phba;
1752
1753 /* Don't do anything that will mess up processing of the
1754 * previous RSCN.
1755 */
1756 if (vport->fc_flag & FC_RSCN_DEFERRED)
1757 return ndlp->nlp_state;
1758
1759 /* software abort outstanding PRLI */
1760 lpfc_els_abort(phba, ndlp);
1761
1762 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1763 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1764 spin_lock_irq(shost->host_lock);
1765 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1766 spin_unlock_irq(shost->host_lock);
1767 lpfc_disc_set_adisc(vport, ndlp);
1768 return ndlp->nlp_state;
1769 }
1770
1771 static uint32_t
lpfc_rcv_plogi_unmap_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1772 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1773 void *arg, uint32_t evt)
1774 {
1775 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1776
1777 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1778 return ndlp->nlp_state;
1779 }
1780
1781 static uint32_t
lpfc_rcv_prli_unmap_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1782 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1783 void *arg, uint32_t evt)
1784 {
1785 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1786
1787 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1788 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1789 return ndlp->nlp_state;
1790 }
1791
1792 static uint32_t
lpfc_rcv_logo_unmap_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1793 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1794 void *arg, uint32_t evt)
1795 {
1796 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1797
1798 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1799 return ndlp->nlp_state;
1800 }
1801
1802 static uint32_t
lpfc_rcv_padisc_unmap_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1803 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1804 void *arg, uint32_t evt)
1805 {
1806 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1807
1808 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1809 return ndlp->nlp_state;
1810 }
1811
1812 static uint32_t
lpfc_rcv_prlo_unmap_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1813 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1814 void *arg, uint32_t evt)
1815 {
1816 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1817
1818 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1819 return ndlp->nlp_state;
1820 }
1821
1822 static uint32_t
lpfc_device_recov_unmap_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1823 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1824 struct lpfc_nodelist *ndlp,
1825 void *arg,
1826 uint32_t evt)
1827 {
1828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1829
1830 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1831 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1832 spin_lock_irq(shost->host_lock);
1833 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1834 spin_unlock_irq(shost->host_lock);
1835 lpfc_disc_set_adisc(vport, ndlp);
1836
1837 return ndlp->nlp_state;
1838 }
1839
1840 static uint32_t
lpfc_rcv_plogi_mapped_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1841 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1842 void *arg, uint32_t evt)
1843 {
1844 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1845
1846 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1847 return ndlp->nlp_state;
1848 }
1849
1850 static uint32_t
lpfc_rcv_prli_mapped_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1851 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1852 void *arg, uint32_t evt)
1853 {
1854 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1855
1856 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1857 return ndlp->nlp_state;
1858 }
1859
1860 static uint32_t
lpfc_rcv_logo_mapped_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1861 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1862 void *arg, uint32_t evt)
1863 {
1864 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1865
1866 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1867 return ndlp->nlp_state;
1868 }
1869
1870 static uint32_t
lpfc_rcv_padisc_mapped_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1871 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1872 struct lpfc_nodelist *ndlp,
1873 void *arg, uint32_t evt)
1874 {
1875 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1876
1877 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1878 return ndlp->nlp_state;
1879 }
1880
1881 static uint32_t
lpfc_rcv_prlo_mapped_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1882 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1883 void *arg, uint32_t evt)
1884 {
1885 struct lpfc_hba *phba = vport->phba;
1886 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1887
1888 /* flush the target */
1889 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1890 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
1891
1892 /* Treat like rcv logo */
1893 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1894 return ndlp->nlp_state;
1895 }
1896
1897 static uint32_t
lpfc_device_recov_mapped_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1898 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1899 struct lpfc_nodelist *ndlp,
1900 void *arg,
1901 uint32_t evt)
1902 {
1903 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1904
1905 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1906 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1907 spin_lock_irq(shost->host_lock);
1908 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1909 spin_unlock_irq(shost->host_lock);
1910 lpfc_disc_set_adisc(vport, ndlp);
1911 return ndlp->nlp_state;
1912 }
1913
1914 static uint32_t
lpfc_rcv_plogi_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1915 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1916 void *arg, uint32_t evt)
1917 {
1918 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1919 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1920
1921 /* Ignore PLOGI if we have an outstanding LOGO */
1922 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
1923 return ndlp->nlp_state;
1924 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1925 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1926 spin_lock_irq(shost->host_lock);
1927 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
1928 spin_unlock_irq(shost->host_lock);
1929 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1930 /* send PLOGI immediately, move to PLOGI issue state */
1931 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1932 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1933 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1934 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1935 }
1936 }
1937 return ndlp->nlp_state;
1938 }
1939
1940 static uint32_t
lpfc_rcv_prli_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1941 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1942 void *arg, uint32_t evt)
1943 {
1944 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1945 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1946 struct ls_rjt stat;
1947
1948 memset(&stat, 0, sizeof (struct ls_rjt));
1949 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1950 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1951 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1952
1953 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1954 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1955 spin_lock_irq(shost->host_lock);
1956 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1957 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1958 spin_unlock_irq(shost->host_lock);
1959 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1960 lpfc_issue_els_adisc(vport, ndlp, 0);
1961 } else {
1962 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1963 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1964 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1965 }
1966 }
1967 return ndlp->nlp_state;
1968 }
1969
1970 static uint32_t
lpfc_rcv_logo_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1971 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1972 void *arg, uint32_t evt)
1973 {
1974 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1975
1976 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1977 return ndlp->nlp_state;
1978 }
1979
1980 static uint32_t
lpfc_rcv_padisc_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)1981 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1982 void *arg, uint32_t evt)
1983 {
1984 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1985
1986 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1987 /*
1988 * Do not start discovery if discovery is about to start
1989 * or discovery in progress for this node. Starting discovery
1990 * here will affect the counting of discovery threads.
1991 */
1992 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1993 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1994 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1995 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1996 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1997 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1998 lpfc_issue_els_adisc(vport, ndlp, 0);
1999 } else {
2000 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2001 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2002 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2003 }
2004 }
2005 return ndlp->nlp_state;
2006 }
2007
2008 static uint32_t
lpfc_rcv_prlo_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2009 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2010 void *arg, uint32_t evt)
2011 {
2012 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2013 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2014
2015 spin_lock_irq(shost->host_lock);
2016 ndlp->nlp_flag |= NLP_LOGO_ACC;
2017 spin_unlock_irq(shost->host_lock);
2018
2019 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2020
2021 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
2022 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2023 spin_lock_irq(shost->host_lock);
2024 ndlp->nlp_flag |= NLP_DELAY_TMO;
2025 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2026 spin_unlock_irq(shost->host_lock);
2027 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
2028 } else {
2029 spin_lock_irq(shost->host_lock);
2030 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2031 spin_unlock_irq(shost->host_lock);
2032 }
2033 return ndlp->nlp_state;
2034 }
2035
2036 static uint32_t
lpfc_cmpl_plogi_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2037 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2038 void *arg, uint32_t evt)
2039 {
2040 struct lpfc_iocbq *cmdiocb, *rspiocb;
2041 IOCB_t *irsp;
2042
2043 cmdiocb = (struct lpfc_iocbq *) arg;
2044 rspiocb = cmdiocb->context_un.rsp_iocb;
2045
2046 irsp = &rspiocb->iocb;
2047 if (irsp->ulpStatus) {
2048 ndlp->nlp_flag |= NLP_DEFER_RM;
2049 return NLP_STE_FREED_NODE;
2050 }
2051 return ndlp->nlp_state;
2052 }
2053
2054 static uint32_t
lpfc_cmpl_prli_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2055 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2056 void *arg, uint32_t evt)
2057 {
2058 struct lpfc_iocbq *cmdiocb, *rspiocb;
2059 IOCB_t *irsp;
2060
2061 cmdiocb = (struct lpfc_iocbq *) arg;
2062 rspiocb = cmdiocb->context_un.rsp_iocb;
2063
2064 irsp = &rspiocb->iocb;
2065 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2066 lpfc_drop_node(vport, ndlp);
2067 return NLP_STE_FREED_NODE;
2068 }
2069 return ndlp->nlp_state;
2070 }
2071
2072 static uint32_t
lpfc_cmpl_logo_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2073 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2074 void *arg, uint32_t evt)
2075 {
2076 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2077 if (ndlp->nlp_DID == Fabric_DID) {
2078 spin_lock_irq(shost->host_lock);
2079 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2080 spin_unlock_irq(shost->host_lock);
2081 }
2082 lpfc_unreg_rpi(vport, ndlp);
2083 return ndlp->nlp_state;
2084 }
2085
2086 static uint32_t
lpfc_cmpl_adisc_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2087 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2088 void *arg, uint32_t evt)
2089 {
2090 struct lpfc_iocbq *cmdiocb, *rspiocb;
2091 IOCB_t *irsp;
2092
2093 cmdiocb = (struct lpfc_iocbq *) arg;
2094 rspiocb = cmdiocb->context_un.rsp_iocb;
2095
2096 irsp = &rspiocb->iocb;
2097 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2098 lpfc_drop_node(vport, ndlp);
2099 return NLP_STE_FREED_NODE;
2100 }
2101 return ndlp->nlp_state;
2102 }
2103
2104 static uint32_t
lpfc_cmpl_reglogin_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2105 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2106 struct lpfc_nodelist *ndlp,
2107 void *arg, uint32_t evt)
2108 {
2109 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
2110 MAILBOX_t *mb = &pmb->u.mb;
2111
2112 if (!mb->mbxStatus) {
2113 /* SLI4 ports have preallocated logical rpis. */
2114 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2115 ndlp->nlp_rpi = mb->un.varWords[0];
2116 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
2117 } else {
2118 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2119 lpfc_drop_node(vport, ndlp);
2120 return NLP_STE_FREED_NODE;
2121 }
2122 }
2123 return ndlp->nlp_state;
2124 }
2125
2126 static uint32_t
lpfc_device_rm_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2127 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2128 void *arg, uint32_t evt)
2129 {
2130 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2131
2132 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2133 spin_lock_irq(shost->host_lock);
2134 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2135 spin_unlock_irq(shost->host_lock);
2136 return ndlp->nlp_state;
2137 }
2138 lpfc_drop_node(vport, ndlp);
2139 return NLP_STE_FREED_NODE;
2140 }
2141
2142 static uint32_t
lpfc_device_recov_npr_node(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2143 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2144 void *arg, uint32_t evt)
2145 {
2146 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2147
2148 /* Don't do anything that will mess up processing of the
2149 * previous RSCN.
2150 */
2151 if (vport->fc_flag & FC_RSCN_DEFERRED)
2152 return ndlp->nlp_state;
2153
2154 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2155 spin_lock_irq(shost->host_lock);
2156 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2157 spin_unlock_irq(shost->host_lock);
2158 return ndlp->nlp_state;
2159 }
2160
2161
2162 /* This next section defines the NPort Discovery State Machine */
2163
2164 /* There are 4 different double linked lists nodelist entries can reside on.
2165 * The plogi list and adisc list are used when Link Up discovery or RSCN
2166 * processing is needed. Each list holds the nodes that we will send PLOGI
2167 * or ADISC on. These lists will keep track of what nodes will be effected
2168 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2169 * The unmapped_list will contain all nodes that we have successfully logged
2170 * into at the Fibre Channel level. The mapped_list will contain all nodes
2171 * that are mapped FCP targets.
2172 */
2173 /*
2174 * The bind list is a list of undiscovered (potentially non-existent) nodes
2175 * that we have saved binding information on. This information is used when
2176 * nodes transition from the unmapped to the mapped list.
2177 */
2178 /* For UNUSED_NODE state, the node has just been allocated .
2179 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2180 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2181 * and put on the unmapped list. For ADISC processing, the node is taken off
2182 * the ADISC list and placed on either the mapped or unmapped list (depending
2183 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2184 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2185 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2186 * node, the node is taken off the unmapped list. The binding list is checked
2187 * for a valid binding, or a binding is automatically assigned. If binding
2188 * assignment is unsuccessful, the node is left on the unmapped list. If
2189 * binding assignment is successful, the associated binding list entry (if
2190 * any) is removed, and the node is placed on the mapped list.
2191 */
2192 /*
2193 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
2194 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
2195 * expire, all effected nodes will receive a DEVICE_RM event.
2196 */
2197 /*
2198 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2199 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2200 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2201 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2202 * we will first process the ADISC list. 32 entries are processed initially and
2203 * ADISC is initited for each one. Completions / Events for each node are
2204 * funnelled thru the state machine. As each node finishes ADISC processing, it
2205 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2206 * waiting, and the ADISC list count is identically 0, then we are done. For
2207 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2208 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2209 * list. 32 entries are processed initially and PLOGI is initited for each one.
2210 * Completions / Events for each node are funnelled thru the state machine. As
2211 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2212 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2213 * indentically 0, then we are done. We have now completed discovery / RSCN
2214 * handling. Upon completion, ALL nodes should be on either the mapped or
2215 * unmapped lists.
2216 */
2217
2218 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2219 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
2220 /* Action routine Event Current State */
2221 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2222 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2223 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2224 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2225 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2226 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2227 lpfc_disc_illegal, /* CMPL_PLOGI */
2228 lpfc_disc_illegal, /* CMPL_PRLI */
2229 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2230 lpfc_disc_illegal, /* CMPL_ADISC */
2231 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2232 lpfc_device_rm_unused_node, /* DEVICE_RM */
2233 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
2234
2235 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2236 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2237 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2238 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2239 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2240 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2241 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2242 lpfc_disc_illegal, /* CMPL_PRLI */
2243 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2244 lpfc_disc_illegal, /* CMPL_ADISC */
2245 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2246 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2247 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2248
2249 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2250 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2251 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2252 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2253 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2254 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2255 lpfc_disc_illegal, /* CMPL_PLOGI */
2256 lpfc_disc_illegal, /* CMPL_PRLI */
2257 lpfc_disc_illegal, /* CMPL_LOGO */
2258 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2259 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2260 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2261 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2262
2263 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2264 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2265 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2266 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2267 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2268 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
2269 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2270 lpfc_disc_illegal, /* CMPL_PRLI */
2271 lpfc_disc_illegal, /* CMPL_LOGO */
2272 lpfc_disc_illegal, /* CMPL_ADISC */
2273 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2274 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2275 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2276
2277 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2278 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2279 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2280 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2281 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2282 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
2283 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2284 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2285 lpfc_disc_illegal, /* CMPL_LOGO */
2286 lpfc_disc_illegal, /* CMPL_ADISC */
2287 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2288 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2289 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2290
2291 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2292 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2293 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2294 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2295 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2296 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2297 lpfc_disc_illegal, /* CMPL_PLOGI */
2298 lpfc_disc_illegal, /* CMPL_PRLI */
2299 lpfc_disc_illegal, /* CMPL_LOGO */
2300 lpfc_disc_illegal, /* CMPL_ADISC */
2301 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2302 lpfc_disc_illegal, /* DEVICE_RM */
2303 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2304
2305 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2306 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2307 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2308 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2309 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2310 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2311 lpfc_disc_illegal, /* CMPL_PLOGI */
2312 lpfc_disc_illegal, /* CMPL_PRLI */
2313 lpfc_disc_illegal, /* CMPL_LOGO */
2314 lpfc_disc_illegal, /* CMPL_ADISC */
2315 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2316 lpfc_disc_illegal, /* DEVICE_RM */
2317 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2318
2319 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2320 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2321 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2322 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2323 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2324 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2325 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2326 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2327 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2328 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2329 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2330 lpfc_device_rm_npr_node, /* DEVICE_RM */
2331 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2332 };
2333
2334 int
lpfc_disc_state_machine(struct lpfc_vport * vport,struct lpfc_nodelist * ndlp,void * arg,uint32_t evt)2335 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2336 void *arg, uint32_t evt)
2337 {
2338 uint32_t cur_state, rc;
2339 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2340 uint32_t);
2341 uint32_t got_ndlp = 0;
2342
2343 if (lpfc_nlp_get(ndlp))
2344 got_ndlp = 1;
2345
2346 cur_state = ndlp->nlp_state;
2347
2348 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2349 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2350 "0211 DSM in event x%x on NPort x%x in "
2351 "state %d Data: x%x\n",
2352 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2353
2354 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2355 "DSM in: evt:%d ste:%d did:x%x",
2356 evt, cur_state, ndlp->nlp_DID);
2357
2358 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2359 rc = (func) (vport, ndlp, arg, evt);
2360
2361 /* DSM out state <rc> on NPort <nlp_DID> */
2362 if (got_ndlp) {
2363 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2364 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2365 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2366
2367 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2368 "DSM out: ste:%d did:x%x flg:x%x",
2369 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2370 /* Decrement the ndlp reference count held for this function */
2371 lpfc_nlp_put(ndlp);
2372 } else {
2373 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2374 "0213 DSM out state %d on NPort free\n", rc);
2375
2376 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2377 "DSM out: ste:%d did:x%x flg:x%x",
2378 rc, 0, 0);
2379 }
2380
2381 return rc;
2382 }
2383