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[SCSI] lpfc 8.2.2 : Rework the lpfc_printf_log() macro
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 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/interrupt.h>
25
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_transport_fc.h>
30
31 #include "lpfc_hw.h"
32 #include "lpfc_sli.h"
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
35 #include "lpfc.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_crtn.h"
38 #include "lpfc_vport.h"
39 #include "lpfc_debugfs.h"
40
41
42 /* Called to verify a rcv'ed ADISC was intended for us. */
43 static int
44 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
45 struct lpfc_name *nn, struct lpfc_name *pn)
46 {
47 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
48 * table entry for that node.
49 */
50 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
51 return 0;
52
53 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
54 return 0;
55
56 /* we match, return success */
57 return 1;
58 }
59
60 int
61 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
62 struct serv_parm * sp, uint32_t class)
63 {
64 volatile struct serv_parm *hsp = &vport->fc_sparam;
65 uint16_t hsp_value, ssp_value = 0;
66
67 /*
68 * The receive data field size and buffer-to-buffer receive data field
69 * size entries are 16 bits but are represented as two 8-bit fields in
70 * the driver data structure to account for rsvd bits and other control
71 * bits. Reconstruct and compare the fields as a 16-bit values before
72 * correcting the byte values.
73 */
74 if (sp->cls1.classValid) {
75 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
76 hsp->cls1.rcvDataSizeLsb;
77 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
78 sp->cls1.rcvDataSizeLsb;
79 if (!ssp_value)
80 goto bad_service_param;
81 if (ssp_value > hsp_value) {
82 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
83 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
84 }
85 } else if (class == CLASS1) {
86 goto bad_service_param;
87 }
88
89 if (sp->cls2.classValid) {
90 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
91 hsp->cls2.rcvDataSizeLsb;
92 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
93 sp->cls2.rcvDataSizeLsb;
94 if (!ssp_value)
95 goto bad_service_param;
96 if (ssp_value > hsp_value) {
97 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
98 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
99 }
100 } else if (class == CLASS2) {
101 goto bad_service_param;
102 }
103
104 if (sp->cls3.classValid) {
105 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
106 hsp->cls3.rcvDataSizeLsb;
107 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
108 sp->cls3.rcvDataSizeLsb;
109 if (!ssp_value)
110 goto bad_service_param;
111 if (ssp_value > hsp_value) {
112 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
113 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
114 }
115 } else if (class == CLASS3) {
116 goto bad_service_param;
117 }
118
119 /*
120 * Preserve the upper four bits of the MSB from the PLOGI response.
121 * These bits contain the Buffer-to-Buffer State Change Number
122 * from the target and need to be passed to the FW.
123 */
124 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
125 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
126 if (ssp_value > hsp_value) {
127 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
128 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
129 (hsp->cmn.bbRcvSizeMsb & 0x0F);
130 }
131
132 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
133 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
134 return 1;
135 bad_service_param:
136 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
137 "0207 Device %x "
138 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
139 "invalid service parameters. Ignoring device.\n",
140 ndlp->nlp_DID,
141 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
142 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
143 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
144 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
145 return 0;
146 }
147
148 static void *
149 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
150 struct lpfc_iocbq *rspiocb)
151 {
152 struct lpfc_dmabuf *pcmd, *prsp;
153 uint32_t *lp;
154 void *ptr = NULL;
155 IOCB_t *irsp;
156
157 irsp = &rspiocb->iocb;
158 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
159
160 /* For lpfc_els_abort, context2 could be zero'ed to delay
161 * freeing associated memory till after ABTS completes.
162 */
163 if (pcmd) {
164 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
165 list);
166 if (prsp) {
167 lp = (uint32_t *) prsp->virt;
168 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
169 }
170 } else {
171 /* Force ulpStatus error since we are returning NULL ptr */
172 if (!(irsp->ulpStatus)) {
173 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
174 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
175 }
176 ptr = NULL;
177 }
178 return ptr;
179 }
180
181
182 /*
183 * Free resources / clean up outstanding I/Os
184 * associated with a LPFC_NODELIST entry. This
185 * routine effectively results in a "software abort".
186 */
187 int
188 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
189 {
190 LIST_HEAD(completions);
191 struct lpfc_sli *psli = &phba->sli;
192 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
193 struct lpfc_iocbq *iocb, *next_iocb;
194 IOCB_t *cmd;
195
196 /* Abort outstanding I/O on NPort <nlp_DID> */
197 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
198 "0205 Abort outstanding I/O on NPort x%x "
199 "Data: x%x x%x x%x\n",
200 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
201 ndlp->nlp_rpi);
202
203 lpfc_fabric_abort_nport(ndlp);
204
205 /* First check the txq */
206 spin_lock_irq(&phba->hbalock);
207 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
208 /* Check to see if iocb matches the nport we are looking for */
209 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
210 /* It matches, so deque and call compl with anp error */
211 list_move_tail(&iocb->list, &completions);
212 pring->txq_cnt--;
213 }
214 }
215
216 /* Next check the txcmplq */
217 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
218 /* Check to see if iocb matches the nport we are looking for */
219 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
220 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
221 }
222 }
223 spin_unlock_irq(&phba->hbalock);
224
225 while (!list_empty(&completions)) {
226 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
227 cmd = &iocb->iocb;
228 list_del_init(&iocb->list);
229
230 if (!iocb->iocb_cmpl)
231 lpfc_sli_release_iocbq(phba, iocb);
232 else {
233 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
234 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
235 (iocb->iocb_cmpl) (phba, iocb, iocb);
236 }
237 }
238
239 /* If we are delaying issuing an ELS command, cancel it */
240 if (ndlp->nlp_flag & NLP_DELAY_TMO)
241 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
242 return 0;
243 }
244
245 static int
246 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
247 struct lpfc_iocbq *cmdiocb)
248 {
249 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
250 struct lpfc_hba *phba = vport->phba;
251 struct lpfc_dmabuf *pcmd;
252 uint32_t *lp;
253 IOCB_t *icmd;
254 struct serv_parm *sp;
255 LPFC_MBOXQ_t *mbox;
256 struct ls_rjt stat;
257 int rc;
258
259 memset(&stat, 0, sizeof (struct ls_rjt));
260 if (vport->port_state <= LPFC_FLOGI) {
261 /* Before responding to PLOGI, check for pt2pt mode.
262 * If we are pt2pt, with an outstanding FLOGI, abort
263 * the FLOGI and resend it first.
264 */
265 if (vport->fc_flag & FC_PT2PT) {
266 lpfc_els_abort_flogi(phba);
267 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
268 /* If the other side is supposed to initiate
269 * the PLOGI anyway, just ACC it now and
270 * move on with discovery.
271 */
272 phba->fc_edtov = FF_DEF_EDTOV;
273 phba->fc_ratov = FF_DEF_RATOV;
274 /* Start discovery - this should just do
275 CLEAR_LA */
276 lpfc_disc_start(vport);
277 } else
278 lpfc_initial_flogi(vport);
279 } else {
280 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
281 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
282 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
283 ndlp, NULL);
284 return 0;
285 }
286 }
287 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
288 lp = (uint32_t *) pcmd->virt;
289 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
290 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
291 /* Reject this request because invalid parameters */
292 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
293 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
294 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
295 NULL);
296 return 0;
297 }
298 icmd = &cmdiocb->iocb;
299
300 /* PLOGI chkparm OK */
301 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
302 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
303 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
304 ndlp->nlp_rpi);
305
306 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
307 ndlp->nlp_fcp_info |= CLASS2;
308 else
309 ndlp->nlp_fcp_info |= CLASS3;
310
311 ndlp->nlp_class_sup = 0;
312 if (sp->cls1.classValid)
313 ndlp->nlp_class_sup |= FC_COS_CLASS1;
314 if (sp->cls2.classValid)
315 ndlp->nlp_class_sup |= FC_COS_CLASS2;
316 if (sp->cls3.classValid)
317 ndlp->nlp_class_sup |= FC_COS_CLASS3;
318 if (sp->cls4.classValid)
319 ndlp->nlp_class_sup |= FC_COS_CLASS4;
320 ndlp->nlp_maxframe =
321 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
322
323 /* no need to reg_login if we are already in one of these states */
324 switch (ndlp->nlp_state) {
325 case NLP_STE_NPR_NODE:
326 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
327 break;
328 case NLP_STE_REG_LOGIN_ISSUE:
329 case NLP_STE_PRLI_ISSUE:
330 case NLP_STE_UNMAPPED_NODE:
331 case NLP_STE_MAPPED_NODE:
332 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
333 return 1;
334 }
335
336 if ((vport->fc_flag & FC_PT2PT) &&
337 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
338 /* rcv'ed PLOGI decides what our NPortId will be */
339 vport->fc_myDID = icmd->un.rcvels.parmRo;
340 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
341 if (mbox == NULL)
342 goto out;
343 lpfc_config_link(phba, mbox);
344 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
345 mbox->vport = vport;
346 rc = lpfc_sli_issue_mbox
347 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
348 if (rc == MBX_NOT_FINISHED) {
349 mempool_free(mbox, phba->mbox_mem_pool);
350 goto out;
351 }
352
353 lpfc_can_disctmo(vport);
354 }
355 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
356 if (!mbox)
357 goto out;
358
359 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
360 (uint8_t *) sp, mbox, 0);
361 if (rc) {
362 mempool_free(mbox, phba->mbox_mem_pool);
363 goto out;
364 }
365
366 /* ACC PLOGI rsp command needs to execute first,
367 * queue this mbox command to be processed later.
368 */
369 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
370 /*
371 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
372 * command issued in lpfc_cmpl_els_acc().
373 */
374 mbox->vport = vport;
375 spin_lock_irq(shost->host_lock);
376 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
377 spin_unlock_irq(shost->host_lock);
378
379 /*
380 * If there is an outstanding PLOGI issued, abort it before
381 * sending ACC rsp for received PLOGI. If pending plogi
382 * is not canceled here, the plogi will be rejected by
383 * remote port and will be retried. On a configuration with
384 * single discovery thread, this will cause a huge delay in
385 * discovery. Also this will cause multiple state machines
386 * running in parallel for this node.
387 */
388 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
389 /* software abort outstanding PLOGI */
390 lpfc_els_abort(phba, ndlp);
391 }
392
393 if ((vport->port_type == LPFC_NPIV_PORT &&
394 vport->cfg_restrict_login)) {
395
396 /* In order to preserve RPIs, we want to cleanup
397 * the default RPI the firmware created to rcv
398 * this ELS request. The only way to do this is
399 * to register, then unregister the RPI.
400 */
401 spin_lock_irq(shost->host_lock);
402 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
403 spin_unlock_irq(shost->host_lock);
404 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
405 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
406 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
407 ndlp, mbox);
408 return 1;
409 }
410 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
411 return 1;
412
413 out:
414 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
415 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
416 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
417 return 0;
418 }
419
420 static int
421 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
422 struct lpfc_iocbq *cmdiocb)
423 {
424 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
425 struct lpfc_dmabuf *pcmd;
426 struct serv_parm *sp;
427 struct lpfc_name *pnn, *ppn;
428 struct ls_rjt stat;
429 ADISC *ap;
430 IOCB_t *icmd;
431 uint32_t *lp;
432 uint32_t cmd;
433
434 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
435 lp = (uint32_t *) pcmd->virt;
436
437 cmd = *lp++;
438 if (cmd == ELS_CMD_ADISC) {
439 ap = (ADISC *) lp;
440 pnn = (struct lpfc_name *) & ap->nodeName;
441 ppn = (struct lpfc_name *) & ap->portName;
442 } else {
443 sp = (struct serv_parm *) lp;
444 pnn = (struct lpfc_name *) & sp->nodeName;
445 ppn = (struct lpfc_name *) & sp->portName;
446 }
447
448 icmd = &cmdiocb->iocb;
449 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
450 if (cmd == ELS_CMD_ADISC) {
451 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
452 } else {
453 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
454 NULL, 0);
455 }
456 return 1;
457 }
458 /* Reject this request because invalid parameters */
459 stat.un.b.lsRjtRsvd0 = 0;
460 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
461 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
462 stat.un.b.vendorUnique = 0;
463 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
464
465 /* 1 sec timeout */
466 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
467
468 spin_lock_irq(shost->host_lock);
469 ndlp->nlp_flag |= NLP_DELAY_TMO;
470 spin_unlock_irq(shost->host_lock);
471 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
472 ndlp->nlp_prev_state = ndlp->nlp_state;
473 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
474 return 0;
475 }
476
477 static int
478 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
479 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
480 {
481 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
482
483 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
484 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
485 * PLOGIs during LOGO storms from a device.
486 */
487 spin_lock_irq(shost->host_lock);
488 ndlp->nlp_flag |= NLP_LOGO_ACC;
489 spin_unlock_irq(shost->host_lock);
490 if (els_cmd == ELS_CMD_PRLO)
491 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
492 else
493 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
494
495 if (!(ndlp->nlp_type & NLP_FABRIC) ||
496 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
497 /* Only try to re-login if this is NOT a Fabric Node */
498 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
499 spin_lock_irq(shost->host_lock);
500 ndlp->nlp_flag |= NLP_DELAY_TMO;
501 spin_unlock_irq(shost->host_lock);
502
503 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
504 ndlp->nlp_prev_state = ndlp->nlp_state;
505 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
506 } else {
507 ndlp->nlp_prev_state = ndlp->nlp_state;
508 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
509 }
510
511 spin_lock_irq(shost->host_lock);
512 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
513 spin_unlock_irq(shost->host_lock);
514 /* The driver has to wait until the ACC completes before it continues
515 * processing the LOGO. The action will resume in
516 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
517 * unreg_login, the driver waits so the ACC does not get aborted.
518 */
519 return 0;
520 }
521
522 static void
523 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
524 struct lpfc_iocbq *cmdiocb)
525 {
526 struct lpfc_dmabuf *pcmd;
527 uint32_t *lp;
528 PRLI *npr;
529 struct fc_rport *rport = ndlp->rport;
530 u32 roles;
531
532 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
533 lp = (uint32_t *) pcmd->virt;
534 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
535
536 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
537 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
538 if (npr->prliType == PRLI_FCP_TYPE) {
539 if (npr->initiatorFunc)
540 ndlp->nlp_type |= NLP_FCP_INITIATOR;
541 if (npr->targetFunc)
542 ndlp->nlp_type |= NLP_FCP_TARGET;
543 if (npr->Retry)
544 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
545 }
546 if (rport) {
547 /* We need to update the rport role values */
548 roles = FC_RPORT_ROLE_UNKNOWN;
549 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
550 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
551 if (ndlp->nlp_type & NLP_FCP_TARGET)
552 roles |= FC_RPORT_ROLE_FCP_TARGET;
553
554 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
555 "rport rolechg: role:x%x did:x%x flg:x%x",
556 roles, ndlp->nlp_DID, ndlp->nlp_flag);
557
558 fc_remote_port_rolechg(rport, roles);
559 }
560 }
561
562 static uint32_t
563 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
564 {
565 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
566
567 /* Check config parameter use-adisc or FCP-2 */
568 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
569 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
570 spin_lock_irq(shost->host_lock);
571 ndlp->nlp_flag |= NLP_NPR_ADISC;
572 spin_unlock_irq(shost->host_lock);
573 return 1;
574 }
575 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
576 lpfc_unreg_rpi(vport, ndlp);
577 return 0;
578 }
579
580 static uint32_t
581 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
582 void *arg, uint32_t evt)
583 {
584 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
585 "0253 Illegal State Transition: node x%x "
586 "event x%x, state x%x Data: x%x x%x\n",
587 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
588 ndlp->nlp_flag);
589 return ndlp->nlp_state;
590 }
591
592 /* Start of Discovery State Machine routines */
593
594 static uint32_t
595 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
596 void *arg, uint32_t evt)
597 {
598 struct lpfc_iocbq *cmdiocb;
599
600 cmdiocb = (struct lpfc_iocbq *) arg;
601
602 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
603 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
604 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
605 return ndlp->nlp_state;
606 }
607 lpfc_drop_node(vport, ndlp);
608 return NLP_STE_FREED_NODE;
609 }
610
611 static uint32_t
612 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
613 void *arg, uint32_t evt)
614 {
615 lpfc_issue_els_logo(vport, ndlp, 0);
616 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
617 return ndlp->nlp_state;
618 }
619
620 static uint32_t
621 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
622 void *arg, uint32_t evt)
623 {
624 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
625 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
626
627 spin_lock_irq(shost->host_lock);
628 ndlp->nlp_flag |= NLP_LOGO_ACC;
629 spin_unlock_irq(shost->host_lock);
630 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
631 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
632
633 return ndlp->nlp_state;
634 }
635
636 static uint32_t
637 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
638 void *arg, uint32_t evt)
639 {
640 lpfc_drop_node(vport, ndlp);
641 return NLP_STE_FREED_NODE;
642 }
643
644 static uint32_t
645 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
646 void *arg, uint32_t evt)
647 {
648 lpfc_drop_node(vport, ndlp);
649 return NLP_STE_FREED_NODE;
650 }
651
652 static uint32_t
653 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
654 void *arg, uint32_t evt)
655 {
656 struct lpfc_hba *phba = vport->phba;
657 struct lpfc_iocbq *cmdiocb = arg;
658 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
659 uint32_t *lp = (uint32_t *) pcmd->virt;
660 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
661 struct ls_rjt stat;
662 int port_cmp;
663
664 memset(&stat, 0, sizeof (struct ls_rjt));
665
666 /* For a PLOGI, we only accept if our portname is less
667 * than the remote portname.
668 */
669 phba->fc_stat.elsLogiCol++;
670 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
671 sizeof(struct lpfc_name));
672
673 if (port_cmp >= 0) {
674 /* Reject this request because the remote node will accept
675 ours */
676 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
677 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
678 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
679 NULL);
680 } else {
681 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
682 } /* If our portname was less */
683
684 return ndlp->nlp_state;
685 }
686
687 static uint32_t
688 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
689 void *arg, uint32_t evt)
690 {
691 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
692 struct ls_rjt stat;
693
694 memset(&stat, 0, sizeof (struct ls_rjt));
695 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
696 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
697 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
698 return ndlp->nlp_state;
699 }
700
701 static uint32_t
702 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
703 void *arg, uint32_t evt)
704 {
705 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
706
707 /* software abort outstanding PLOGI */
708 lpfc_els_abort(vport->phba, ndlp);
709
710 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
711 return ndlp->nlp_state;
712 }
713
714 static uint32_t
715 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
716 void *arg, uint32_t evt)
717 {
718 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
719 struct lpfc_hba *phba = vport->phba;
720 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
721
722 /* software abort outstanding PLOGI */
723 lpfc_els_abort(phba, ndlp);
724
725 if (evt == NLP_EVT_RCV_LOGO) {
726 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
727 } else {
728 lpfc_issue_els_logo(vport, ndlp, 0);
729 }
730
731 /* Put ndlp in npr state set plogi timer for 1 sec */
732 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
733 spin_lock_irq(shost->host_lock);
734 ndlp->nlp_flag |= NLP_DELAY_TMO;
735 spin_unlock_irq(shost->host_lock);
736 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
737 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
738 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
739
740 return ndlp->nlp_state;
741 }
742
743 static uint32_t
744 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
745 struct lpfc_nodelist *ndlp,
746 void *arg,
747 uint32_t evt)
748 {
749 struct lpfc_hba *phba = vport->phba;
750 struct lpfc_iocbq *cmdiocb, *rspiocb;
751 struct lpfc_dmabuf *pcmd, *prsp, *mp;
752 uint32_t *lp;
753 IOCB_t *irsp;
754 struct serv_parm *sp;
755 LPFC_MBOXQ_t *mbox;
756
757 cmdiocb = (struct lpfc_iocbq *) arg;
758 rspiocb = cmdiocb->context_un.rsp_iocb;
759
760 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
761 /* Recovery from PLOGI collision logic */
762 return ndlp->nlp_state;
763 }
764
765 irsp = &rspiocb->iocb;
766
767 if (irsp->ulpStatus)
768 goto out;
769
770 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
771
772 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
773
774 lp = (uint32_t *) prsp->virt;
775 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
776 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
777 goto out;
778 /* PLOGI chkparm OK */
779 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
780 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
781 ndlp->nlp_DID, ndlp->nlp_state,
782 ndlp->nlp_flag, ndlp->nlp_rpi);
783 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
784 ndlp->nlp_fcp_info |= CLASS2;
785 else
786 ndlp->nlp_fcp_info |= CLASS3;
787
788 ndlp->nlp_class_sup = 0;
789 if (sp->cls1.classValid)
790 ndlp->nlp_class_sup |= FC_COS_CLASS1;
791 if (sp->cls2.classValid)
792 ndlp->nlp_class_sup |= FC_COS_CLASS2;
793 if (sp->cls3.classValid)
794 ndlp->nlp_class_sup |= FC_COS_CLASS3;
795 if (sp->cls4.classValid)
796 ndlp->nlp_class_sup |= FC_COS_CLASS4;
797 ndlp->nlp_maxframe =
798 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
799
800 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
801 if (!mbox) {
802 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
803 "0133 PLOGI: no memory for reg_login "
804 "Data: x%x x%x x%x x%x\n",
805 ndlp->nlp_DID, ndlp->nlp_state,
806 ndlp->nlp_flag, ndlp->nlp_rpi);
807 goto out;
808 }
809
810 lpfc_unreg_rpi(vport, ndlp);
811
812 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
813 (uint8_t *) sp, mbox, 0) == 0) {
814 switch (ndlp->nlp_DID) {
815 case NameServer_DID:
816 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
817 break;
818 case FDMI_DID:
819 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
820 break;
821 default:
822 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
823 }
824 mbox->context2 = lpfc_nlp_get(ndlp);
825 mbox->vport = vport;
826 if (lpfc_sli_issue_mbox(phba, mbox,
827 (MBX_NOWAIT | MBX_STOP_IOCB))
828 != MBX_NOT_FINISHED) {
829 lpfc_nlp_set_state(vport, ndlp,
830 NLP_STE_REG_LOGIN_ISSUE);
831 return ndlp->nlp_state;
832 }
833 lpfc_nlp_put(ndlp);
834 mp = (struct lpfc_dmabuf *) mbox->context1;
835 lpfc_mbuf_free(phba, mp->virt, mp->phys);
836 kfree(mp);
837 mempool_free(mbox, phba->mbox_mem_pool);
838
839 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
840 "0134 PLOGI: cannot issue reg_login "
841 "Data: x%x x%x x%x x%x\n",
842 ndlp->nlp_DID, ndlp->nlp_state,
843 ndlp->nlp_flag, ndlp->nlp_rpi);
844 } else {
845 mempool_free(mbox, phba->mbox_mem_pool);
846
847 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
848 "0135 PLOGI: cannot format reg_login "
849 "Data: x%x x%x x%x x%x\n",
850 ndlp->nlp_DID, ndlp->nlp_state,
851 ndlp->nlp_flag, ndlp->nlp_rpi);
852 }
853
854
855 out:
856 if (ndlp->nlp_DID == NameServer_DID) {
857 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
858 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
859 "0261 Cannot Register NameServer login\n");
860 }
861
862 /* Free this node since the driver cannot login or has the wrong
863 sparm */
864 lpfc_drop_node(vport, ndlp);
865 return NLP_STE_FREED_NODE;
866 }
867
868 static uint32_t
869 lpfc_device_rm_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
874 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
875 spin_lock_irq(shost->host_lock);
876 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
877 spin_unlock_irq(shost->host_lock);
878 return ndlp->nlp_state;
879 } else {
880 /* software abort outstanding PLOGI */
881 lpfc_els_abort(vport->phba, ndlp);
882
883 lpfc_drop_node(vport, ndlp);
884 return NLP_STE_FREED_NODE;
885 }
886 }
887
888 static uint32_t
889 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
890 struct lpfc_nodelist *ndlp,
891 void *arg,
892 uint32_t evt)
893 {
894 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
895 struct lpfc_hba *phba = vport->phba;
896
897 /* Don't do anything that will mess up processing of the
898 * previous RSCN.
899 */
900 if (vport->fc_flag & FC_RSCN_DEFERRED)
901 return ndlp->nlp_state;
902
903 /* software abort outstanding PLOGI */
904 lpfc_els_abort(phba, ndlp);
905
906 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
907 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
908 spin_lock_irq(shost->host_lock);
909 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
910 spin_unlock_irq(shost->host_lock);
911
912 return ndlp->nlp_state;
913 }
914
915 static uint32_t
916 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
917 void *arg, uint32_t evt)
918 {
919 struct lpfc_hba *phba = vport->phba;
920 struct lpfc_iocbq *cmdiocb;
921
922 /* software abort outstanding ADISC */
923 lpfc_els_abort(phba, ndlp);
924
925 cmdiocb = (struct lpfc_iocbq *) arg;
926
927 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb))
928 return ndlp->nlp_state;
929
930 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
931 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
932 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
933
934 return ndlp->nlp_state;
935 }
936
937 static uint32_t
938 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
939 void *arg, uint32_t evt)
940 {
941 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
942
943 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
944 return ndlp->nlp_state;
945 }
946
947 static uint32_t
948 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
949 void *arg, uint32_t evt)
950 {
951 struct lpfc_hba *phba = vport->phba;
952 struct lpfc_iocbq *cmdiocb;
953
954 cmdiocb = (struct lpfc_iocbq *) arg;
955
956 /* software abort outstanding ADISC */
957 lpfc_els_abort(phba, ndlp);
958
959 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
960 return ndlp->nlp_state;
961 }
962
963 static uint32_t
964 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
965 struct lpfc_nodelist *ndlp,
966 void *arg, uint32_t evt)
967 {
968 struct lpfc_iocbq *cmdiocb;
969
970 cmdiocb = (struct lpfc_iocbq *) arg;
971
972 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
973 return ndlp->nlp_state;
974 }
975
976 static uint32_t
977 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
978 void *arg, uint32_t evt)
979 {
980 struct lpfc_iocbq *cmdiocb;
981
982 cmdiocb = (struct lpfc_iocbq *) arg;
983
984 /* Treat like rcv logo */
985 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
986 return ndlp->nlp_state;
987 }
988
989 static uint32_t
990 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
991 struct lpfc_nodelist *ndlp,
992 void *arg, uint32_t evt)
993 {
994 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
995 struct lpfc_hba *phba = vport->phba;
996 struct lpfc_iocbq *cmdiocb, *rspiocb;
997 IOCB_t *irsp;
998 ADISC *ap;
999
1000 cmdiocb = (struct lpfc_iocbq *) arg;
1001 rspiocb = cmdiocb->context_un.rsp_iocb;
1002
1003 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1004 irsp = &rspiocb->iocb;
1005
1006 if ((irsp->ulpStatus) ||
1007 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1008 /* 1 sec timeout */
1009 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1010 spin_lock_irq(shost->host_lock);
1011 ndlp->nlp_flag |= NLP_DELAY_TMO;
1012 spin_unlock_irq(shost->host_lock);
1013 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1014
1015 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1016 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1017
1018 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1019 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1020 lpfc_unreg_rpi(vport, ndlp);
1021 return ndlp->nlp_state;
1022 }
1023
1024 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1025 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1026 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1027 } else {
1028 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1029 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1030 }
1031 return ndlp->nlp_state;
1032 }
1033
1034 static uint32_t
1035 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1036 void *arg, uint32_t evt)
1037 {
1038 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1039
1040 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1041 spin_lock_irq(shost->host_lock);
1042 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1043 spin_unlock_irq(shost->host_lock);
1044 return ndlp->nlp_state;
1045 } else {
1046 /* software abort outstanding ADISC */
1047 lpfc_els_abort(vport->phba, ndlp);
1048
1049 lpfc_drop_node(vport, ndlp);
1050 return NLP_STE_FREED_NODE;
1051 }
1052 }
1053
1054 static uint32_t
1055 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1056 struct lpfc_nodelist *ndlp,
1057 void *arg,
1058 uint32_t evt)
1059 {
1060 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1061 struct lpfc_hba *phba = vport->phba;
1062
1063 /* Don't do anything that will mess up processing of the
1064 * previous RSCN.
1065 */
1066 if (vport->fc_flag & FC_RSCN_DEFERRED)
1067 return ndlp->nlp_state;
1068
1069 /* software abort outstanding ADISC */
1070 lpfc_els_abort(phba, ndlp);
1071
1072 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1073 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1074 spin_lock_irq(shost->host_lock);
1075 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1076 spin_unlock_irq(shost->host_lock);
1077 lpfc_disc_set_adisc(vport, ndlp);
1078 return ndlp->nlp_state;
1079 }
1080
1081 static uint32_t
1082 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1083 struct lpfc_nodelist *ndlp,
1084 void *arg,
1085 uint32_t evt)
1086 {
1087 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1088
1089 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1090 return ndlp->nlp_state;
1091 }
1092
1093 static uint32_t
1094 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1095 struct lpfc_nodelist *ndlp,
1096 void *arg,
1097 uint32_t evt)
1098 {
1099 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1100
1101 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1102 return ndlp->nlp_state;
1103 }
1104
1105 static uint32_t
1106 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1107 struct lpfc_nodelist *ndlp,
1108 void *arg,
1109 uint32_t evt)
1110 {
1111 struct lpfc_hba *phba = vport->phba;
1112 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1113 LPFC_MBOXQ_t *mb;
1114 LPFC_MBOXQ_t *nextmb;
1115 struct lpfc_dmabuf *mp;
1116
1117 cmdiocb = (struct lpfc_iocbq *) arg;
1118
1119 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1120 if ((mb = phba->sli.mbox_active)) {
1121 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1122 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1123 lpfc_nlp_put(ndlp);
1124 mb->context2 = NULL;
1125 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1126 }
1127 }
1128
1129 spin_lock_irq(&phba->hbalock);
1130 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1131 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1132 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1133 mp = (struct lpfc_dmabuf *) (mb->context1);
1134 if (mp) {
1135 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1136 kfree(mp);
1137 }
1138 lpfc_nlp_put(ndlp);
1139 list_del(&mb->list);
1140 mempool_free(mb, phba->mbox_mem_pool);
1141 }
1142 }
1143 spin_unlock_irq(&phba->hbalock);
1144
1145 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1146 return ndlp->nlp_state;
1147 }
1148
1149 static uint32_t
1150 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1151 struct lpfc_nodelist *ndlp,
1152 void *arg,
1153 uint32_t evt)
1154 {
1155 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1156
1157 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1158 return ndlp->nlp_state;
1159 }
1160
1161 static uint32_t
1162 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1163 struct lpfc_nodelist *ndlp,
1164 void *arg,
1165 uint32_t evt)
1166 {
1167 struct lpfc_iocbq *cmdiocb;
1168
1169 cmdiocb = (struct lpfc_iocbq *) arg;
1170 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1171 return ndlp->nlp_state;
1172 }
1173
1174 static uint32_t
1175 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1176 struct lpfc_nodelist *ndlp,
1177 void *arg,
1178 uint32_t evt)
1179 {
1180 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1181 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1182 MAILBOX_t *mb = &pmb->mb;
1183 uint32_t did = mb->un.varWords[1];
1184
1185 if (mb->mbxStatus) {
1186 /* RegLogin failed */
1187 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1188 "0246 RegLogin failed Data: x%x x%x x%x\n",
1189 did, mb->mbxStatus, vport->port_state);
1190 /*
1191 * If RegLogin failed due to lack of HBA resources do not
1192 * retry discovery.
1193 */
1194 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1195 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
1196 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1197 return ndlp->nlp_state;
1198 }
1199
1200 /* Put ndlp in npr state set plogi timer for 1 sec */
1201 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1202 spin_lock_irq(shost->host_lock);
1203 ndlp->nlp_flag |= NLP_DELAY_TMO;
1204 spin_unlock_irq(shost->host_lock);
1205 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1206
1207 lpfc_issue_els_logo(vport, ndlp, 0);
1208 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1209 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1210 return ndlp->nlp_state;
1211 }
1212
1213 ndlp->nlp_rpi = mb->un.varWords[0];
1214
1215 /* Only if we are not a fabric nport do we issue PRLI */
1216 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1217 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1218 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1219 lpfc_issue_els_prli(vport, ndlp, 0);
1220 } else {
1221 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1222 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1223 }
1224 return ndlp->nlp_state;
1225 }
1226
1227 static uint32_t
1228 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1229 struct lpfc_nodelist *ndlp,
1230 void *arg,
1231 uint32_t evt)
1232 {
1233 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1234
1235 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1236 spin_lock_irq(shost->host_lock);
1237 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1238 spin_unlock_irq(shost->host_lock);
1239 return ndlp->nlp_state;
1240 } else {
1241 lpfc_drop_node(vport, ndlp);
1242 return NLP_STE_FREED_NODE;
1243 }
1244 }
1245
1246 static uint32_t
1247 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1248 struct lpfc_nodelist *ndlp,
1249 void *arg,
1250 uint32_t evt)
1251 {
1252 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1253
1254 /* Don't do anything that will mess up processing of the
1255 * previous RSCN.
1256 */
1257 if (vport->fc_flag & FC_RSCN_DEFERRED)
1258 return ndlp->nlp_state;
1259
1260 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1261 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1262 spin_lock_irq(shost->host_lock);
1263 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1264 spin_unlock_irq(shost->host_lock);
1265 lpfc_disc_set_adisc(vport, ndlp);
1266 return ndlp->nlp_state;
1267 }
1268
1269 static uint32_t
1270 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1271 void *arg, uint32_t evt)
1272 {
1273 struct lpfc_iocbq *cmdiocb;
1274
1275 cmdiocb = (struct lpfc_iocbq *) arg;
1276
1277 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1278 return ndlp->nlp_state;
1279 }
1280
1281 static uint32_t
1282 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1283 void *arg, uint32_t evt)
1284 {
1285 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1286
1287 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1288 return ndlp->nlp_state;
1289 }
1290
1291 static uint32_t
1292 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1293 void *arg, uint32_t evt)
1294 {
1295 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1296
1297 /* Software abort outstanding PRLI before sending acc */
1298 lpfc_els_abort(vport->phba, ndlp);
1299
1300 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1301 return ndlp->nlp_state;
1302 }
1303
1304 static uint32_t
1305 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1306 void *arg, uint32_t evt)
1307 {
1308 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1309
1310 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1311 return ndlp->nlp_state;
1312 }
1313
1314 /* This routine is envoked when we rcv a PRLO request from a nport
1315 * we are logged into. We should send back a PRLO rsp setting the
1316 * appropriate bits.
1317 * NEXT STATE = PRLI_ISSUE
1318 */
1319 static uint32_t
1320 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1321 void *arg, uint32_t evt)
1322 {
1323 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1324
1325 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1326 return ndlp->nlp_state;
1327 }
1328
1329 static uint32_t
1330 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1331 void *arg, uint32_t evt)
1332 {
1333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1334 struct lpfc_iocbq *cmdiocb, *rspiocb;
1335 struct lpfc_hba *phba = vport->phba;
1336 IOCB_t *irsp;
1337 PRLI *npr;
1338
1339 cmdiocb = (struct lpfc_iocbq *) arg;
1340 rspiocb = cmdiocb->context_un.rsp_iocb;
1341 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1342
1343 irsp = &rspiocb->iocb;
1344 if (irsp->ulpStatus) {
1345 if ((vport->port_type == LPFC_NPIV_PORT) &&
1346 vport->cfg_restrict_login) {
1347 goto out;
1348 }
1349 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1350 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1351 return ndlp->nlp_state;
1352 }
1353
1354 /* Check out PRLI rsp */
1355 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1356 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1357 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1358 (npr->prliType == PRLI_FCP_TYPE)) {
1359 if (npr->initiatorFunc)
1360 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1361 if (npr->targetFunc)
1362 ndlp->nlp_type |= NLP_FCP_TARGET;
1363 if (npr->Retry)
1364 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1365 }
1366 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1367 (vport->port_type == LPFC_NPIV_PORT) &&
1368 vport->cfg_restrict_login) {
1369 out:
1370 spin_lock_irq(shost->host_lock);
1371 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1372 spin_unlock_irq(shost->host_lock);
1373 lpfc_issue_els_logo(vport, ndlp, 0);
1374
1375 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1376 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1377 return ndlp->nlp_state;
1378 }
1379
1380 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1381 if (ndlp->nlp_type & NLP_FCP_TARGET)
1382 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1383 else
1384 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1385 return ndlp->nlp_state;
1386 }
1387
1388 /*! lpfc_device_rm_prli_issue
1389 *
1390 * \pre
1391 * \post
1392 * \param phba
1393 * \param ndlp
1394 * \param arg
1395 * \param evt
1396 * \return uint32_t
1397 *
1398 * \b Description:
1399 * This routine is envoked when we a request to remove a nport we are in the
1400 * process of PRLIing. We should software abort outstanding prli, unreg
1401 * login, send a logout. We will change node state to UNUSED_NODE, put it
1402 * on plogi list so it can be freed when LOGO completes.
1403 *
1404 */
1405
1406 static uint32_t
1407 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1408 void *arg, uint32_t evt)
1409 {
1410 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1411
1412 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1413 spin_lock_irq(shost->host_lock);
1414 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1415 spin_unlock_irq(shost->host_lock);
1416 return ndlp->nlp_state;
1417 } else {
1418 /* software abort outstanding PLOGI */
1419 lpfc_els_abort(vport->phba, ndlp);
1420
1421 lpfc_drop_node(vport, ndlp);
1422 return NLP_STE_FREED_NODE;
1423 }
1424 }
1425
1426
1427 /*! lpfc_device_recov_prli_issue
1428 *
1429 * \pre
1430 * \post
1431 * \param phba
1432 * \param ndlp
1433 * \param arg
1434 * \param evt
1435 * \return uint32_t
1436 *
1437 * \b Description:
1438 * The routine is envoked when the state of a device is unknown, like
1439 * during a link down. We should remove the nodelist entry from the
1440 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1441 * outstanding PRLI command, then free the node entry.
1442 */
1443 static uint32_t
1444 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1445 struct lpfc_nodelist *ndlp,
1446 void *arg,
1447 uint32_t evt)
1448 {
1449 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1450 struct lpfc_hba *phba = vport->phba;
1451
1452 /* Don't do anything that will mess up processing of the
1453 * previous RSCN.
1454 */
1455 if (vport->fc_flag & FC_RSCN_DEFERRED)
1456 return ndlp->nlp_state;
1457
1458 /* software abort outstanding PRLI */
1459 lpfc_els_abort(phba, ndlp);
1460
1461 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1462 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1463 spin_lock_irq(shost->host_lock);
1464 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1465 spin_unlock_irq(shost->host_lock);
1466 lpfc_disc_set_adisc(vport, ndlp);
1467 return ndlp->nlp_state;
1468 }
1469
1470 static uint32_t
1471 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1472 void *arg, uint32_t evt)
1473 {
1474 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1475
1476 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1477 return ndlp->nlp_state;
1478 }
1479
1480 static uint32_t
1481 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1482 void *arg, uint32_t evt)
1483 {
1484 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1485
1486 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1487 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1488 return ndlp->nlp_state;
1489 }
1490
1491 static uint32_t
1492 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1493 void *arg, uint32_t evt)
1494 {
1495 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1496
1497 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1498 return ndlp->nlp_state;
1499 }
1500
1501 static uint32_t
1502 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1503 void *arg, uint32_t evt)
1504 {
1505 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1506
1507 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1508 return ndlp->nlp_state;
1509 }
1510
1511 static uint32_t
1512 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1513 void *arg, uint32_t evt)
1514 {
1515 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1516
1517 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1518 return ndlp->nlp_state;
1519 }
1520
1521 static uint32_t
1522 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1523 struct lpfc_nodelist *ndlp,
1524 void *arg,
1525 uint32_t evt)
1526 {
1527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1528
1529 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1530 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1531 spin_lock_irq(shost->host_lock);
1532 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1533 spin_unlock_irq(shost->host_lock);
1534 lpfc_disc_set_adisc(vport, ndlp);
1535
1536 return ndlp->nlp_state;
1537 }
1538
1539 static uint32_t
1540 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1541 void *arg, uint32_t evt)
1542 {
1543 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1544
1545 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1546 return ndlp->nlp_state;
1547 }
1548
1549 static uint32_t
1550 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1551 void *arg, uint32_t evt)
1552 {
1553 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1554
1555 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1556 return ndlp->nlp_state;
1557 }
1558
1559 static uint32_t
1560 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1561 void *arg, uint32_t evt)
1562 {
1563 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1564
1565 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1566 return ndlp->nlp_state;
1567 }
1568
1569 static uint32_t
1570 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1571 struct lpfc_nodelist *ndlp,
1572 void *arg, uint32_t evt)
1573 {
1574 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1575
1576 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1577 return ndlp->nlp_state;
1578 }
1579
1580 static uint32_t
1581 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1582 void *arg, uint32_t evt)
1583 {
1584 struct lpfc_hba *phba = vport->phba;
1585 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1586
1587 /* flush the target */
1588 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1589 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1590
1591 /* Treat like rcv logo */
1592 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1593 return ndlp->nlp_state;
1594 }
1595
1596 static uint32_t
1597 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1598 struct lpfc_nodelist *ndlp,
1599 void *arg,
1600 uint32_t evt)
1601 {
1602 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1603
1604 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1605 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1606 spin_lock_irq(shost->host_lock);
1607 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1608 spin_unlock_irq(shost->host_lock);
1609 lpfc_disc_set_adisc(vport, ndlp);
1610 return ndlp->nlp_state;
1611 }
1612
1613 static uint32_t
1614 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1615 void *arg, uint32_t evt)
1616 {
1617 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1618 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1619
1620 /* Ignore PLOGI if we have an outstanding LOGO */
1621 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) {
1622 return ndlp->nlp_state;
1623 }
1624
1625 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1626 spin_lock_irq(shost->host_lock);
1627 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1628 spin_unlock_irq(shost->host_lock);
1629 return ndlp->nlp_state;
1630 }
1631
1632 /* send PLOGI immediately, move to PLOGI issue state */
1633 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1634 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1635 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1636 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1637 }
1638
1639 return ndlp->nlp_state;
1640 }
1641
1642 static uint32_t
1643 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1644 void *arg, uint32_t evt)
1645 {
1646 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1647 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1648 struct ls_rjt stat;
1649
1650 memset(&stat, 0, sizeof (struct ls_rjt));
1651 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1652 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1653 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1654
1655 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1656 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1657 spin_lock_irq(shost->host_lock);
1658 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1659 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1660 spin_unlock_irq(shost->host_lock);
1661 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1662 lpfc_issue_els_adisc(vport, ndlp, 0);
1663 } else {
1664 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1665 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1666 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1667 }
1668 }
1669 return ndlp->nlp_state;
1670 }
1671
1672 static uint32_t
1673 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1674 void *arg, uint32_t evt)
1675 {
1676 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1677
1678 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1679 return ndlp->nlp_state;
1680 }
1681
1682 static uint32_t
1683 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1684 void *arg, uint32_t evt)
1685 {
1686 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1687
1688 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1689
1690 /*
1691 * Do not start discovery if discovery is about to start
1692 * or discovery in progress for this node. Starting discovery
1693 * here will affect the counting of discovery threads.
1694 */
1695 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1696 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1697 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1698 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1699 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1700 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1701 lpfc_issue_els_adisc(vport, ndlp, 0);
1702 } else {
1703 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1704 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1705 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1706 }
1707 }
1708 return ndlp->nlp_state;
1709 }
1710
1711 static uint32_t
1712 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1713 void *arg, uint32_t evt)
1714 {
1715 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1716 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1717
1718 spin_lock_irq(shost->host_lock);
1719 ndlp->nlp_flag |= NLP_LOGO_ACC;
1720 spin_unlock_irq(shost->host_lock);
1721
1722 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1723
1724 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
1725 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1726 spin_lock_irq(shost->host_lock);
1727 ndlp->nlp_flag |= NLP_DELAY_TMO;
1728 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1729 spin_unlock_irq(shost->host_lock);
1730 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1731 } else {
1732 spin_lock_irq(shost->host_lock);
1733 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1734 spin_unlock_irq(shost->host_lock);
1735 }
1736 return ndlp->nlp_state;
1737 }
1738
1739 static uint32_t
1740 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1741 void *arg, uint32_t evt)
1742 {
1743 struct lpfc_iocbq *cmdiocb, *rspiocb;
1744 IOCB_t *irsp;
1745
1746 cmdiocb = (struct lpfc_iocbq *) arg;
1747 rspiocb = cmdiocb->context_un.rsp_iocb;
1748
1749 irsp = &rspiocb->iocb;
1750 if (irsp->ulpStatus) {
1751 lpfc_drop_node(vport, ndlp);
1752 return NLP_STE_FREED_NODE;
1753 }
1754 return ndlp->nlp_state;
1755 }
1756
1757 static uint32_t
1758 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1759 void *arg, uint32_t evt)
1760 {
1761 struct lpfc_iocbq *cmdiocb, *rspiocb;
1762 IOCB_t *irsp;
1763
1764 cmdiocb = (struct lpfc_iocbq *) arg;
1765 rspiocb = cmdiocb->context_un.rsp_iocb;
1766
1767 irsp = &rspiocb->iocb;
1768 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1769 lpfc_drop_node(vport, ndlp);
1770 return NLP_STE_FREED_NODE;
1771 }
1772 return ndlp->nlp_state;
1773 }
1774
1775 static uint32_t
1776 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1777 void *arg, uint32_t evt)
1778 {
1779 lpfc_unreg_rpi(vport, ndlp);
1780 /* This routine does nothing, just return the current state */
1781 return ndlp->nlp_state;
1782 }
1783
1784 static uint32_t
1785 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1786 void *arg, uint32_t evt)
1787 {
1788 struct lpfc_iocbq *cmdiocb, *rspiocb;
1789 IOCB_t *irsp;
1790
1791 cmdiocb = (struct lpfc_iocbq *) arg;
1792 rspiocb = cmdiocb->context_un.rsp_iocb;
1793
1794 irsp = &rspiocb->iocb;
1795 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1796 lpfc_drop_node(vport, ndlp);
1797 return NLP_STE_FREED_NODE;
1798 }
1799 return ndlp->nlp_state;
1800 }
1801
1802 static uint32_t
1803 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1804 struct lpfc_nodelist *ndlp,
1805 void *arg, uint32_t evt)
1806 {
1807 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1808 MAILBOX_t *mb = &pmb->mb;
1809
1810 if (!mb->mbxStatus)
1811 ndlp->nlp_rpi = mb->un.varWords[0];
1812 else {
1813 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
1814 lpfc_drop_node(vport, ndlp);
1815 return NLP_STE_FREED_NODE;
1816 }
1817 }
1818 return ndlp->nlp_state;
1819 }
1820
1821 static uint32_t
1822 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1823 void *arg, uint32_t evt)
1824 {
1825 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1826
1827 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1828 spin_lock_irq(shost->host_lock);
1829 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1830 spin_unlock_irq(shost->host_lock);
1831 return ndlp->nlp_state;
1832 }
1833 lpfc_drop_node(vport, ndlp);
1834 return NLP_STE_FREED_NODE;
1835 }
1836
1837 static uint32_t
1838 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1839 void *arg, uint32_t evt)
1840 {
1841 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1842
1843 /* Don't do anything that will mess up processing of the
1844 * previous RSCN.
1845 */
1846 if (vport->fc_flag & FC_RSCN_DEFERRED)
1847 return ndlp->nlp_state;
1848
1849 spin_lock_irq(shost->host_lock);
1850 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1851 spin_unlock_irq(shost->host_lock);
1852 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1853 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1854 }
1855 return ndlp->nlp_state;
1856 }
1857
1858
1859 /* This next section defines the NPort Discovery State Machine */
1860
1861 /* There are 4 different double linked lists nodelist entries can reside on.
1862 * The plogi list and adisc list are used when Link Up discovery or RSCN
1863 * processing is needed. Each list holds the nodes that we will send PLOGI
1864 * or ADISC on. These lists will keep track of what nodes will be effected
1865 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1866 * The unmapped_list will contain all nodes that we have successfully logged
1867 * into at the Fibre Channel level. The mapped_list will contain all nodes
1868 * that are mapped FCP targets.
1869 */
1870 /*
1871 * The bind list is a list of undiscovered (potentially non-existent) nodes
1872 * that we have saved binding information on. This information is used when
1873 * nodes transition from the unmapped to the mapped list.
1874 */
1875 /* For UNUSED_NODE state, the node has just been allocated .
1876 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1877 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1878 * and put on the unmapped list. For ADISC processing, the node is taken off
1879 * the ADISC list and placed on either the mapped or unmapped list (depending
1880 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1881 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1882 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1883 * node, the node is taken off the unmapped list. The binding list is checked
1884 * for a valid binding, or a binding is automatically assigned. If binding
1885 * assignment is unsuccessful, the node is left on the unmapped list. If
1886 * binding assignment is successful, the associated binding list entry (if
1887 * any) is removed, and the node is placed on the mapped list.
1888 */
1889 /*
1890 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1891 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
1892 * expire, all effected nodes will receive a DEVICE_RM event.
1893 */
1894 /*
1895 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1896 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1897 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1898 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1899 * we will first process the ADISC list. 32 entries are processed initially and
1900 * ADISC is initited for each one. Completions / Events for each node are
1901 * funnelled thru the state machine. As each node finishes ADISC processing, it
1902 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1903 * waiting, and the ADISC list count is identically 0, then we are done. For
1904 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1905 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1906 * list. 32 entries are processed initially and PLOGI is initited for each one.
1907 * Completions / Events for each node are funnelled thru the state machine. As
1908 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1909 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1910 * indentically 0, then we are done. We have now completed discovery / RSCN
1911 * handling. Upon completion, ALL nodes should be on either the mapped or
1912 * unmapped lists.
1913 */
1914
1915 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1916 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
1917 /* Action routine Event Current State */
1918 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1919 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1920 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1921 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1922 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1923 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1924 lpfc_disc_illegal, /* CMPL_PLOGI */
1925 lpfc_disc_illegal, /* CMPL_PRLI */
1926 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1927 lpfc_disc_illegal, /* CMPL_ADISC */
1928 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1929 lpfc_device_rm_unused_node, /* DEVICE_RM */
1930 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1931
1932 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1933 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
1934 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
1935 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1936 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1937 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1938 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1939 lpfc_disc_illegal, /* CMPL_PRLI */
1940 lpfc_disc_illegal, /* CMPL_LOGO */
1941 lpfc_disc_illegal, /* CMPL_ADISC */
1942 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1943 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1944 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1945
1946 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1947 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1948 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1949 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1950 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1951 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1952 lpfc_disc_illegal, /* CMPL_PLOGI */
1953 lpfc_disc_illegal, /* CMPL_PRLI */
1954 lpfc_disc_illegal, /* CMPL_LOGO */
1955 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1956 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1957 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1958 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1959
1960 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1961 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1962 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1963 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1964 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1965 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1966 lpfc_disc_illegal, /* CMPL_PLOGI */
1967 lpfc_disc_illegal, /* CMPL_PRLI */
1968 lpfc_disc_illegal, /* CMPL_LOGO */
1969 lpfc_disc_illegal, /* CMPL_ADISC */
1970 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1971 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1972 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1973
1974 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1975 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1976 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1977 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1978 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1979 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1980 lpfc_disc_illegal, /* CMPL_PLOGI */
1981 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1982 lpfc_disc_illegal, /* CMPL_LOGO */
1983 lpfc_disc_illegal, /* CMPL_ADISC */
1984 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1985 lpfc_device_rm_prli_issue, /* DEVICE_RM */
1986 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
1987
1988 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
1989 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
1990 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
1991 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
1992 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
1993 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
1994 lpfc_disc_illegal, /* CMPL_PLOGI */
1995 lpfc_disc_illegal, /* CMPL_PRLI */
1996 lpfc_disc_illegal, /* CMPL_LOGO */
1997 lpfc_disc_illegal, /* CMPL_ADISC */
1998 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1999 lpfc_disc_illegal, /* DEVICE_RM */
2000 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2001
2002 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2003 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2004 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2005 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2006 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2007 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2008 lpfc_disc_illegal, /* CMPL_PLOGI */
2009 lpfc_disc_illegal, /* CMPL_PRLI */
2010 lpfc_disc_illegal, /* CMPL_LOGO */
2011 lpfc_disc_illegal, /* CMPL_ADISC */
2012 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2013 lpfc_disc_illegal, /* DEVICE_RM */
2014 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2015
2016 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2017 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2018 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2019 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2020 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2021 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2022 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2023 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2024 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2025 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2026 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2027 lpfc_device_rm_npr_node, /* DEVICE_RM */
2028 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2029 };
2030
2031 int
2032 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2033 void *arg, uint32_t evt)
2034 {
2035 uint32_t cur_state, rc;
2036 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2037 uint32_t);
2038
2039 lpfc_nlp_get(ndlp);
2040 cur_state = ndlp->nlp_state;
2041
2042 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2043 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2044 "0211 DSM in event x%x on NPort x%x in "
2045 "state %d Data: x%x\n",
2046 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2047
2048 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2049 "DSM in: evt:%d ste:%d did:x%x",
2050 evt, cur_state, ndlp->nlp_DID);
2051
2052 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2053 rc = (func) (vport, ndlp, arg, evt);
2054
2055 /* DSM out state <rc> on NPort <nlp_DID> */
2056 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2057 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2058 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2059
2060 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2061 "DSM out: ste:%d did:x%x flg:x%x",
2062 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2063
2064 lpfc_nlp_put(ndlp);
2065
2066 return rc;
2067 }
kernel source for telekom puls (alcatel/mediatek)