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Merge branch 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlie...
[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_log(vport->phba, KERN_ERR, LOG_DISCOVERY,
137 "%d (%d):0207 Device %x "
138 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
139 "invalid service parameters. Ignoring device.\n",
140 vport->phba->brd_no, ndlp->vport->vpi, 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_log(phba, KERN_INFO, LOG_DISCOVERY,
198 "%d (%d):0205 Abort outstanding I/O on NPort x%x "
199 "Data: x%x x%x x%x\n",
200 phba->brd_no, ndlp->vport->vpi, ndlp->nlp_DID,
201 ndlp->nlp_flag, ndlp->nlp_state, 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_log(phba, KERN_INFO, LOG_ELS,
302 "%d (%d):0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
303 phba->brd_no, vport->vpi,
304 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
305 ndlp->nlp_rpi);
306
307 if (phba->cfg_fcp_class == 2 && sp->cls2.classValid)
308 ndlp->nlp_fcp_info |= CLASS2;
309 else
310 ndlp->nlp_fcp_info |= CLASS3;
311
312 ndlp->nlp_class_sup = 0;
313 if (sp->cls1.classValid)
314 ndlp->nlp_class_sup |= FC_COS_CLASS1;
315 if (sp->cls2.classValid)
316 ndlp->nlp_class_sup |= FC_COS_CLASS2;
317 if (sp->cls3.classValid)
318 ndlp->nlp_class_sup |= FC_COS_CLASS3;
319 if (sp->cls4.classValid)
320 ndlp->nlp_class_sup |= FC_COS_CLASS4;
321 ndlp->nlp_maxframe =
322 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
323
324 /* no need to reg_login if we are already in one of these states */
325 switch (ndlp->nlp_state) {
326 case NLP_STE_NPR_NODE:
327 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
328 break;
329 case NLP_STE_REG_LOGIN_ISSUE:
330 case NLP_STE_PRLI_ISSUE:
331 case NLP_STE_UNMAPPED_NODE:
332 case NLP_STE_MAPPED_NODE:
333 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
334 return 1;
335 }
336
337 if ((vport->fc_flag & FC_PT2PT) &&
338 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
339 /* rcv'ed PLOGI decides what our NPortId will be */
340 vport->fc_myDID = icmd->un.rcvels.parmRo;
341 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
342 if (mbox == NULL)
343 goto out;
344 lpfc_config_link(phba, mbox);
345 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
346 mbox->vport = vport;
347 rc = lpfc_sli_issue_mbox
348 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
349 if (rc == MBX_NOT_FINISHED) {
350 mempool_free(mbox, phba->mbox_mem_pool);
351 goto out;
352 }
353
354 lpfc_can_disctmo(vport);
355 }
356 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
357 if (!mbox)
358 goto out;
359
360 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
361 (uint8_t *) sp, mbox, 0);
362 if (rc) {
363 mempool_free(mbox, phba->mbox_mem_pool);
364 goto out;
365 }
366
367 /* ACC PLOGI rsp command needs to execute first,
368 * queue this mbox command to be processed later.
369 */
370 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
371 /*
372 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
373 * command issued in lpfc_cmpl_els_acc().
374 */
375 mbox->vport = vport;
376 spin_lock_irq(shost->host_lock);
377 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
378 spin_unlock_irq(shost->host_lock);
379
380 /*
381 * If there is an outstanding PLOGI issued, abort it before
382 * sending ACC rsp for received PLOGI. If pending plogi
383 * is not canceled here, the plogi will be rejected by
384 * remote port and will be retried. On a configuration with
385 * single discovery thread, this will cause a huge delay in
386 * discovery. Also this will cause multiple state machines
387 * running in parallel for this node.
388 */
389 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
390 /* software abort outstanding PLOGI */
391 lpfc_els_abort(phba, ndlp);
392 }
393
394 if ((vport->port_type == LPFC_NPIV_PORT &&
395 phba->cfg_vport_restrict_login)) {
396
397 /* In order to preserve RPIs, we want to cleanup
398 * the default RPI the firmware created to rcv
399 * this ELS request. The only way to do this is
400 * to register, then unregister the RPI.
401 */
402 spin_lock_irq(shost->host_lock);
403 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
404 spin_unlock_irq(shost->host_lock);
405 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
406 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
407 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
408 ndlp, mbox);
409 return 1;
410 }
411 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
412 return 1;
413
414 out:
415 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
416 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
417 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
418 return 0;
419 }
420
421 static int
422 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
423 struct lpfc_iocbq *cmdiocb)
424 {
425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
426 struct lpfc_dmabuf *pcmd;
427 struct serv_parm *sp;
428 struct lpfc_name *pnn, *ppn;
429 struct ls_rjt stat;
430 ADISC *ap;
431 IOCB_t *icmd;
432 uint32_t *lp;
433 uint32_t cmd;
434
435 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
436 lp = (uint32_t *) pcmd->virt;
437
438 cmd = *lp++;
439 if (cmd == ELS_CMD_ADISC) {
440 ap = (ADISC *) lp;
441 pnn = (struct lpfc_name *) & ap->nodeName;
442 ppn = (struct lpfc_name *) & ap->portName;
443 } else {
444 sp = (struct serv_parm *) lp;
445 pnn = (struct lpfc_name *) & sp->nodeName;
446 ppn = (struct lpfc_name *) & sp->portName;
447 }
448
449 icmd = &cmdiocb->iocb;
450 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
451 if (cmd == ELS_CMD_ADISC) {
452 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
453 } else {
454 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
455 NULL, 0);
456 }
457 return 1;
458 }
459 /* Reject this request because invalid parameters */
460 stat.un.b.lsRjtRsvd0 = 0;
461 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
462 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
463 stat.un.b.vendorUnique = 0;
464 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
465
466 /* 1 sec timeout */
467 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
468
469 spin_lock_irq(shost->host_lock);
470 ndlp->nlp_flag |= NLP_DELAY_TMO;
471 spin_unlock_irq(shost->host_lock);
472 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
473 ndlp->nlp_prev_state = ndlp->nlp_state;
474 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
475 return 0;
476 }
477
478 static int
479 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
480 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
481 {
482 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
483
484 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
485 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
486 * PLOGIs during LOGO storms from a device.
487 */
488 spin_lock_irq(shost->host_lock);
489 ndlp->nlp_flag |= NLP_LOGO_ACC;
490 spin_unlock_irq(shost->host_lock);
491 if (els_cmd == ELS_CMD_PRLO)
492 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
493 else
494 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
495
496 if (!(ndlp->nlp_type & NLP_FABRIC) ||
497 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
498 /* Only try to re-login if this is NOT a Fabric Node */
499 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
500 spin_lock_irq(shost->host_lock);
501 ndlp->nlp_flag |= NLP_DELAY_TMO;
502 spin_unlock_irq(shost->host_lock);
503
504 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
505 ndlp->nlp_prev_state = ndlp->nlp_state;
506 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
507 } else {
508 ndlp->nlp_prev_state = ndlp->nlp_state;
509 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
510 }
511
512 spin_lock_irq(shost->host_lock);
513 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
514 spin_unlock_irq(shost->host_lock);
515 /* The driver has to wait until the ACC completes before it continues
516 * processing the LOGO. The action will resume in
517 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
518 * unreg_login, the driver waits so the ACC does not get aborted.
519 */
520 return 0;
521 }
522
523 static void
524 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
525 struct lpfc_iocbq *cmdiocb)
526 {
527 struct lpfc_dmabuf *pcmd;
528 uint32_t *lp;
529 PRLI *npr;
530 struct fc_rport *rport = ndlp->rport;
531 u32 roles;
532
533 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
534 lp = (uint32_t *) pcmd->virt;
535 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
536
537 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
538 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
539 if (npr->prliType == PRLI_FCP_TYPE) {
540 if (npr->initiatorFunc)
541 ndlp->nlp_type |= NLP_FCP_INITIATOR;
542 if (npr->targetFunc)
543 ndlp->nlp_type |= NLP_FCP_TARGET;
544 if (npr->Retry)
545 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
546 }
547 if (rport) {
548 /* We need to update the rport role values */
549 roles = FC_RPORT_ROLE_UNKNOWN;
550 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
551 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
552 if (ndlp->nlp_type & NLP_FCP_TARGET)
553 roles |= FC_RPORT_ROLE_FCP_TARGET;
554
555 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
556 "rport rolechg: role:x%x did:x%x flg:x%x",
557 roles, ndlp->nlp_DID, ndlp->nlp_flag);
558
559 fc_remote_port_rolechg(rport, roles);
560 }
561 }
562
563 static uint32_t
564 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
565 {
566 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
567 struct lpfc_hba *phba = vport->phba;
568
569 /* Check config parameter use-adisc or FCP-2 */
570 if ((phba->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
571 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
572 spin_lock_irq(shost->host_lock);
573 ndlp->nlp_flag |= NLP_NPR_ADISC;
574 spin_unlock_irq(shost->host_lock);
575 return 1;
576 }
577 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
578 lpfc_unreg_rpi(vport, ndlp);
579 return 0;
580 }
581
582 static uint32_t
583 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
584 void *arg, uint32_t evt)
585 {
586 lpfc_printf_log(vport->phba, KERN_ERR, LOG_DISCOVERY,
587 "%d (%d):0253 Illegal State Transition: node x%x "
588 "event x%x, state x%x Data: x%x x%x\n",
589 vport->phba->brd_no, vport->vpi,
590 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
591 ndlp->nlp_flag);
592 return ndlp->nlp_state;
593 }
594
595 /* Start of Discovery State Machine routines */
596
597 static uint32_t
598 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
599 void *arg, uint32_t evt)
600 {
601 struct lpfc_iocbq *cmdiocb;
602
603 cmdiocb = (struct lpfc_iocbq *) arg;
604
605 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
606 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
607 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
608 return ndlp->nlp_state;
609 }
610 lpfc_drop_node(vport, ndlp);
611 return NLP_STE_FREED_NODE;
612 }
613
614 static uint32_t
615 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
616 void *arg, uint32_t evt)
617 {
618 lpfc_issue_els_logo(vport, ndlp, 0);
619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
620 return ndlp->nlp_state;
621 }
622
623 static uint32_t
624 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
625 void *arg, uint32_t evt)
626 {
627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
628 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
629
630 spin_lock_irq(shost->host_lock);
631 ndlp->nlp_flag |= NLP_LOGO_ACC;
632 spin_unlock_irq(shost->host_lock);
633 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
634 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
635
636 return ndlp->nlp_state;
637 }
638
639 static uint32_t
640 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
641 void *arg, uint32_t evt)
642 {
643 lpfc_drop_node(vport, ndlp);
644 return NLP_STE_FREED_NODE;
645 }
646
647 static uint32_t
648 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
649 void *arg, uint32_t evt)
650 {
651 lpfc_drop_node(vport, ndlp);
652 return NLP_STE_FREED_NODE;
653 }
654
655 static uint32_t
656 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
657 void *arg, uint32_t evt)
658 {
659 struct lpfc_hba *phba = vport->phba;
660 struct lpfc_iocbq *cmdiocb = arg;
661 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
662 uint32_t *lp = (uint32_t *) pcmd->virt;
663 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
664 struct ls_rjt stat;
665 int port_cmp;
666
667 memset(&stat, 0, sizeof (struct ls_rjt));
668
669 /* For a PLOGI, we only accept if our portname is less
670 * than the remote portname.
671 */
672 phba->fc_stat.elsLogiCol++;
673 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
674 sizeof(struct lpfc_name));
675
676 if (port_cmp >= 0) {
677 /* Reject this request because the remote node will accept
678 ours */
679 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
680 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
681 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
682 NULL);
683 } else {
684 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
685 } /* If our portname was less */
686
687 return ndlp->nlp_state;
688 }
689
690 static uint32_t
691 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
692 void *arg, uint32_t evt)
693 {
694 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
695 struct ls_rjt stat;
696
697 memset(&stat, 0, sizeof (struct ls_rjt));
698 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
699 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
700 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
701 return ndlp->nlp_state;
702 }
703
704 static uint32_t
705 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
706 void *arg, uint32_t evt)
707 {
708 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
709
710 /* software abort outstanding PLOGI */
711 lpfc_els_abort(vport->phba, ndlp);
712
713 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
714 return ndlp->nlp_state;
715 }
716
717 static uint32_t
718 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
719 void *arg, uint32_t evt)
720 {
721 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
722 struct lpfc_hba *phba = vport->phba;
723 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
724
725 /* software abort outstanding PLOGI */
726 lpfc_els_abort(phba, ndlp);
727
728 if (evt == NLP_EVT_RCV_LOGO) {
729 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
730 } else {
731 lpfc_issue_els_logo(vport, ndlp, 0);
732 }
733
734 /* Put ndlp in npr state set plogi timer for 1 sec */
735 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
736 spin_lock_irq(shost->host_lock);
737 ndlp->nlp_flag |= NLP_DELAY_TMO;
738 spin_unlock_irq(shost->host_lock);
739 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
740 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
741 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
742
743 return ndlp->nlp_state;
744 }
745
746 static uint32_t
747 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
748 struct lpfc_nodelist *ndlp,
749 void *arg,
750 uint32_t evt)
751 {
752 struct lpfc_hba *phba = vport->phba;
753 struct lpfc_iocbq *cmdiocb, *rspiocb;
754 struct lpfc_dmabuf *pcmd, *prsp, *mp;
755 uint32_t *lp;
756 IOCB_t *irsp;
757 struct serv_parm *sp;
758 LPFC_MBOXQ_t *mbox;
759
760 cmdiocb = (struct lpfc_iocbq *) arg;
761 rspiocb = cmdiocb->context_un.rsp_iocb;
762
763 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
764 /* Recovery from PLOGI collision logic */
765 return ndlp->nlp_state;
766 }
767
768 irsp = &rspiocb->iocb;
769
770 if (irsp->ulpStatus)
771 goto out;
772
773 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
774
775 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
776
777 lp = (uint32_t *) prsp->virt;
778 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
779 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
780 goto out;
781
782 /* PLOGI chkparm OK */
783 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
784 "%d (%d):0121 PLOGI chkparm OK "
785 "Data: x%x x%x x%x x%x\n",
786 phba->brd_no, vport->vpi,
787 ndlp->nlp_DID, ndlp->nlp_state,
788 ndlp->nlp_flag, ndlp->nlp_rpi);
789
790 if (phba->cfg_fcp_class == 2 && (sp->cls2.classValid))
791 ndlp->nlp_fcp_info |= CLASS2;
792 else
793 ndlp->nlp_fcp_info |= CLASS3;
794
795 ndlp->nlp_class_sup = 0;
796 if (sp->cls1.classValid)
797 ndlp->nlp_class_sup |= FC_COS_CLASS1;
798 if (sp->cls2.classValid)
799 ndlp->nlp_class_sup |= FC_COS_CLASS2;
800 if (sp->cls3.classValid)
801 ndlp->nlp_class_sup |= FC_COS_CLASS3;
802 if (sp->cls4.classValid)
803 ndlp->nlp_class_sup |= FC_COS_CLASS4;
804 ndlp->nlp_maxframe =
805 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
806
807 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
808 if (!mbox) {
809 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
810 "%d (%d):0133 PLOGI: no memory for reg_login "
811 "Data: x%x x%x x%x x%x\n",
812 phba->brd_no, vport->vpi,
813 ndlp->nlp_DID, ndlp->nlp_state,
814 ndlp->nlp_flag, ndlp->nlp_rpi);
815 goto out;
816 }
817
818 lpfc_unreg_rpi(vport, ndlp);
819
820 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
821 (uint8_t *) sp, mbox, 0) == 0) {
822 switch (ndlp->nlp_DID) {
823 case NameServer_DID:
824 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
825 break;
826 case FDMI_DID:
827 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
828 break;
829 default:
830 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
831 }
832 mbox->context2 = lpfc_nlp_get(ndlp);
833 mbox->vport = vport;
834 if (lpfc_sli_issue_mbox(phba, mbox,
835 (MBX_NOWAIT | MBX_STOP_IOCB))
836 != MBX_NOT_FINISHED) {
837 lpfc_nlp_set_state(vport, ndlp,
838 NLP_STE_REG_LOGIN_ISSUE);
839 return ndlp->nlp_state;
840 }
841 lpfc_nlp_put(ndlp);
842 mp = (struct lpfc_dmabuf *) mbox->context1;
843 lpfc_mbuf_free(phba, mp->virt, mp->phys);
844 kfree(mp);
845 mempool_free(mbox, phba->mbox_mem_pool);
846
847 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
848 "%d (%d):0134 PLOGI: cannot issue reg_login "
849 "Data: x%x x%x x%x x%x\n",
850 phba->brd_no, vport->vpi,
851 ndlp->nlp_DID, ndlp->nlp_state,
852 ndlp->nlp_flag, ndlp->nlp_rpi);
853 } else {
854 mempool_free(mbox, phba->mbox_mem_pool);
855
856 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
857 "%d (%d):0135 PLOGI: cannot format reg_login "
858 "Data: x%x x%x x%x x%x\n",
859 phba->brd_no, vport->vpi,
860 ndlp->nlp_DID, ndlp->nlp_state,
861 ndlp->nlp_flag, ndlp->nlp_rpi);
862 }
863
864
865 out:
866 if (ndlp->nlp_DID == NameServer_DID) {
867 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
868 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
869 "%d (%d):0261 Cannot Register NameServer login\n",
870 phba->brd_no, vport->vpi);
871 }
872
873 /* Free this node since the driver cannot login or has the wrong
874 sparm */
875 lpfc_drop_node(vport, ndlp);
876 return NLP_STE_FREED_NODE;
877 }
878
879 static uint32_t
880 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
881 void *arg, uint32_t evt)
882 {
883 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
884
885 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
886 spin_lock_irq(shost->host_lock);
887 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
888 spin_unlock_irq(shost->host_lock);
889 return ndlp->nlp_state;
890 } else {
891 /* software abort outstanding PLOGI */
892 lpfc_els_abort(vport->phba, ndlp);
893
894 lpfc_drop_node(vport, ndlp);
895 return NLP_STE_FREED_NODE;
896 }
897 }
898
899 static uint32_t
900 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
901 struct lpfc_nodelist *ndlp,
902 void *arg,
903 uint32_t evt)
904 {
905 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
906 struct lpfc_hba *phba = vport->phba;
907
908 /* Don't do anything that will mess up processing of the
909 * previous RSCN.
910 */
911 if (vport->fc_flag & FC_RSCN_DEFERRED)
912 return ndlp->nlp_state;
913
914 /* software abort outstanding PLOGI */
915 lpfc_els_abort(phba, ndlp);
916
917 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
918 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
919 spin_lock_irq(shost->host_lock);
920 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
921 spin_unlock_irq(shost->host_lock);
922
923 return ndlp->nlp_state;
924 }
925
926 static uint32_t
927 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
928 void *arg, uint32_t evt)
929 {
930 struct lpfc_hba *phba = vport->phba;
931 struct lpfc_iocbq *cmdiocb;
932
933 /* software abort outstanding ADISC */
934 lpfc_els_abort(phba, ndlp);
935
936 cmdiocb = (struct lpfc_iocbq *) arg;
937
938 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb))
939 return ndlp->nlp_state;
940
941 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
942 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
943 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
944
945 return ndlp->nlp_state;
946 }
947
948 static uint32_t
949 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
950 void *arg, uint32_t evt)
951 {
952 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
953
954 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
955 return ndlp->nlp_state;
956 }
957
958 static uint32_t
959 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
960 void *arg, uint32_t evt)
961 {
962 struct lpfc_hba *phba = vport->phba;
963 struct lpfc_iocbq *cmdiocb;
964
965 cmdiocb = (struct lpfc_iocbq *) arg;
966
967 /* software abort outstanding ADISC */
968 lpfc_els_abort(phba, ndlp);
969
970 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
971 return ndlp->nlp_state;
972 }
973
974 static uint32_t
975 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
976 struct lpfc_nodelist *ndlp,
977 void *arg, uint32_t evt)
978 {
979 struct lpfc_iocbq *cmdiocb;
980
981 cmdiocb = (struct lpfc_iocbq *) arg;
982
983 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
984 return ndlp->nlp_state;
985 }
986
987 static uint32_t
988 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
989 void *arg, uint32_t evt)
990 {
991 struct lpfc_iocbq *cmdiocb;
992
993 cmdiocb = (struct lpfc_iocbq *) arg;
994
995 /* Treat like rcv logo */
996 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
997 return ndlp->nlp_state;
998 }
999
1000 static uint32_t
1001 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1002 struct lpfc_nodelist *ndlp,
1003 void *arg, uint32_t evt)
1004 {
1005 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1006 struct lpfc_hba *phba = vport->phba;
1007 struct lpfc_iocbq *cmdiocb, *rspiocb;
1008 IOCB_t *irsp;
1009 ADISC *ap;
1010
1011 cmdiocb = (struct lpfc_iocbq *) arg;
1012 rspiocb = cmdiocb->context_un.rsp_iocb;
1013
1014 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1015 irsp = &rspiocb->iocb;
1016
1017 if ((irsp->ulpStatus) ||
1018 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1019 /* 1 sec timeout */
1020 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1021 spin_lock_irq(shost->host_lock);
1022 ndlp->nlp_flag |= NLP_DELAY_TMO;
1023 spin_unlock_irq(shost->host_lock);
1024 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1025
1026 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1027 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1028
1029 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1030 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1031 lpfc_unreg_rpi(vport, ndlp);
1032 return ndlp->nlp_state;
1033 }
1034
1035 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1036 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1037 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1038 } else {
1039 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1040 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1041 }
1042 return ndlp->nlp_state;
1043 }
1044
1045 static uint32_t
1046 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1047 void *arg, uint32_t evt)
1048 {
1049 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1050
1051 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1052 spin_lock_irq(shost->host_lock);
1053 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1054 spin_unlock_irq(shost->host_lock);
1055 return ndlp->nlp_state;
1056 } else {
1057 /* software abort outstanding ADISC */
1058 lpfc_els_abort(vport->phba, ndlp);
1059
1060 lpfc_drop_node(vport, ndlp);
1061 return NLP_STE_FREED_NODE;
1062 }
1063 }
1064
1065 static uint32_t
1066 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1067 struct lpfc_nodelist *ndlp,
1068 void *arg,
1069 uint32_t evt)
1070 {
1071 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1072 struct lpfc_hba *phba = vport->phba;
1073
1074 /* Don't do anything that will mess up processing of the
1075 * previous RSCN.
1076 */
1077 if (vport->fc_flag & FC_RSCN_DEFERRED)
1078 return ndlp->nlp_state;
1079
1080 /* software abort outstanding ADISC */
1081 lpfc_els_abort(phba, ndlp);
1082
1083 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1084 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1085 spin_lock_irq(shost->host_lock);
1086 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1087 spin_unlock_irq(shost->host_lock);
1088 lpfc_disc_set_adisc(vport, ndlp);
1089 return ndlp->nlp_state;
1090 }
1091
1092 static uint32_t
1093 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1094 struct lpfc_nodelist *ndlp,
1095 void *arg,
1096 uint32_t evt)
1097 {
1098 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1099
1100 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1101 return ndlp->nlp_state;
1102 }
1103
1104 static uint32_t
1105 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1106 struct lpfc_nodelist *ndlp,
1107 void *arg,
1108 uint32_t evt)
1109 {
1110 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1111
1112 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1113 return ndlp->nlp_state;
1114 }
1115
1116 static uint32_t
1117 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1118 struct lpfc_nodelist *ndlp,
1119 void *arg,
1120 uint32_t evt)
1121 {
1122 struct lpfc_hba *phba = vport->phba;
1123 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1124 LPFC_MBOXQ_t *mb;
1125 LPFC_MBOXQ_t *nextmb;
1126 struct lpfc_dmabuf *mp;
1127
1128 cmdiocb = (struct lpfc_iocbq *) arg;
1129
1130 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1131 if ((mb = phba->sli.mbox_active)) {
1132 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1133 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1134 lpfc_nlp_put(ndlp);
1135 mb->context2 = NULL;
1136 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1137 }
1138 }
1139
1140 spin_lock_irq(&phba->hbalock);
1141 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1142 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1143 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1144 mp = (struct lpfc_dmabuf *) (mb->context1);
1145 if (mp) {
1146 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1147 kfree(mp);
1148 }
1149 lpfc_nlp_put(ndlp);
1150 list_del(&mb->list);
1151 mempool_free(mb, phba->mbox_mem_pool);
1152 }
1153 }
1154 spin_unlock_irq(&phba->hbalock);
1155
1156 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1157 return ndlp->nlp_state;
1158 }
1159
1160 static uint32_t
1161 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1162 struct lpfc_nodelist *ndlp,
1163 void *arg,
1164 uint32_t evt)
1165 {
1166 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1167
1168 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1169 return ndlp->nlp_state;
1170 }
1171
1172 static uint32_t
1173 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1174 struct lpfc_nodelist *ndlp,
1175 void *arg,
1176 uint32_t evt)
1177 {
1178 struct lpfc_iocbq *cmdiocb;
1179
1180 cmdiocb = (struct lpfc_iocbq *) arg;
1181 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1182 return ndlp->nlp_state;
1183 }
1184
1185 static uint32_t
1186 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1187 struct lpfc_nodelist *ndlp,
1188 void *arg,
1189 uint32_t evt)
1190 {
1191 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1192 struct lpfc_hba *phba = vport->phba;
1193 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1194 MAILBOX_t *mb = &pmb->mb;
1195 uint32_t did = mb->un.varWords[1];
1196
1197 if (mb->mbxStatus) {
1198 /* RegLogin failed */
1199 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
1200 "%d (%d):0246 RegLogin failed Data: x%x x%x "
1201 "x%x\n",
1202 phba->brd_no, vport->vpi,
1203 did, mb->mbxStatus, vport->port_state);
1204
1205 /*
1206 * If RegLogin failed due to lack of HBA resources do not
1207 * retry discovery.
1208 */
1209 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1210 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
1211 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1212 return ndlp->nlp_state;
1213 }
1214
1215 /* Put ndlp in npr state set plogi timer for 1 sec */
1216 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1217 spin_lock_irq(shost->host_lock);
1218 ndlp->nlp_flag |= NLP_DELAY_TMO;
1219 spin_unlock_irq(shost->host_lock);
1220 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1221
1222 lpfc_issue_els_logo(vport, ndlp, 0);
1223 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1224 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1225 return ndlp->nlp_state;
1226 }
1227
1228 ndlp->nlp_rpi = mb->un.varWords[0];
1229
1230 /* Only if we are not a fabric nport do we issue PRLI */
1231 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1232 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1233 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1234 lpfc_issue_els_prli(vport, ndlp, 0);
1235 } else {
1236 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1237 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1238 }
1239 return ndlp->nlp_state;
1240 }
1241
1242 static uint32_t
1243 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1244 struct lpfc_nodelist *ndlp,
1245 void *arg,
1246 uint32_t evt)
1247 {
1248 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1249
1250 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1251 spin_lock_irq(shost->host_lock);
1252 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1253 spin_unlock_irq(shost->host_lock);
1254 return ndlp->nlp_state;
1255 } else {
1256 lpfc_drop_node(vport, ndlp);
1257 return NLP_STE_FREED_NODE;
1258 }
1259 }
1260
1261 static uint32_t
1262 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1263 struct lpfc_nodelist *ndlp,
1264 void *arg,
1265 uint32_t evt)
1266 {
1267 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1268
1269 /* Don't do anything that will mess up processing of the
1270 * previous RSCN.
1271 */
1272 if (vport->fc_flag & FC_RSCN_DEFERRED)
1273 return ndlp->nlp_state;
1274
1275 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1276 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1277 spin_lock_irq(shost->host_lock);
1278 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1279 spin_unlock_irq(shost->host_lock);
1280 lpfc_disc_set_adisc(vport, ndlp);
1281 return ndlp->nlp_state;
1282 }
1283
1284 static uint32_t
1285 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1286 void *arg, uint32_t evt)
1287 {
1288 struct lpfc_iocbq *cmdiocb;
1289
1290 cmdiocb = (struct lpfc_iocbq *) arg;
1291
1292 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1293 return ndlp->nlp_state;
1294 }
1295
1296 static uint32_t
1297 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1298 void *arg, uint32_t evt)
1299 {
1300 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1301
1302 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1303 return ndlp->nlp_state;
1304 }
1305
1306 static uint32_t
1307 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1308 void *arg, uint32_t evt)
1309 {
1310 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1311
1312 /* Software abort outstanding PRLI before sending acc */
1313 lpfc_els_abort(vport->phba, ndlp);
1314
1315 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1316 return ndlp->nlp_state;
1317 }
1318
1319 static uint32_t
1320 lpfc_rcv_padisc_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_rcv_padisc(vport, ndlp, cmdiocb);
1326 return ndlp->nlp_state;
1327 }
1328
1329 /* This routine is envoked when we rcv a PRLO request from a nport
1330 * we are logged into. We should send back a PRLO rsp setting the
1331 * appropriate bits.
1332 * NEXT STATE = PRLI_ISSUE
1333 */
1334 static uint32_t
1335 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1336 void *arg, uint32_t evt)
1337 {
1338 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1339
1340 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1341 return ndlp->nlp_state;
1342 }
1343
1344 static uint32_t
1345 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1346 void *arg, uint32_t evt)
1347 {
1348 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1349 struct lpfc_iocbq *cmdiocb, *rspiocb;
1350 struct lpfc_hba *phba = vport->phba;
1351 IOCB_t *irsp;
1352 PRLI *npr;
1353
1354 cmdiocb = (struct lpfc_iocbq *) arg;
1355 rspiocb = cmdiocb->context_un.rsp_iocb;
1356 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1357
1358 irsp = &rspiocb->iocb;
1359 if (irsp->ulpStatus) {
1360 if ((vport->port_type == LPFC_NPIV_PORT) &&
1361 phba->cfg_vport_restrict_login) {
1362 goto out;
1363 }
1364 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1365 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1366 return ndlp->nlp_state;
1367 }
1368
1369 /* Check out PRLI rsp */
1370 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1371 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1372 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1373 (npr->prliType == PRLI_FCP_TYPE)) {
1374 if (npr->initiatorFunc)
1375 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1376 if (npr->targetFunc)
1377 ndlp->nlp_type |= NLP_FCP_TARGET;
1378 if (npr->Retry)
1379 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1380 }
1381 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1382 (vport->port_type == LPFC_NPIV_PORT) &&
1383 phba->cfg_vport_restrict_login) {
1384 out:
1385 spin_lock_irq(shost->host_lock);
1386 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1387 spin_unlock_irq(shost->host_lock);
1388 lpfc_issue_els_logo(vport, ndlp, 0);
1389
1390 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1391 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1392 return ndlp->nlp_state;
1393 }
1394
1395 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1396 if (ndlp->nlp_type & NLP_FCP_TARGET)
1397 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1398 else
1399 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1400 return ndlp->nlp_state;
1401 }
1402
1403 /*! lpfc_device_rm_prli_issue
1404 *
1405 * \pre
1406 * \post
1407 * \param phba
1408 * \param ndlp
1409 * \param arg
1410 * \param evt
1411 * \return uint32_t
1412 *
1413 * \b Description:
1414 * This routine is envoked when we a request to remove a nport we are in the
1415 * process of PRLIing. We should software abort outstanding prli, unreg
1416 * login, send a logout. We will change node state to UNUSED_NODE, put it
1417 * on plogi list so it can be freed when LOGO completes.
1418 *
1419 */
1420
1421 static uint32_t
1422 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1423 void *arg, uint32_t evt)
1424 {
1425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1426
1427 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1428 spin_lock_irq(shost->host_lock);
1429 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1430 spin_unlock_irq(shost->host_lock);
1431 return ndlp->nlp_state;
1432 } else {
1433 /* software abort outstanding PLOGI */
1434 lpfc_els_abort(vport->phba, ndlp);
1435
1436 lpfc_drop_node(vport, ndlp);
1437 return NLP_STE_FREED_NODE;
1438 }
1439 }
1440
1441
1442 /*! lpfc_device_recov_prli_issue
1443 *
1444 * \pre
1445 * \post
1446 * \param phba
1447 * \param ndlp
1448 * \param arg
1449 * \param evt
1450 * \return uint32_t
1451 *
1452 * \b Description:
1453 * The routine is envoked when the state of a device is unknown, like
1454 * during a link down. We should remove the nodelist entry from the
1455 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1456 * outstanding PRLI command, then free the node entry.
1457 */
1458 static uint32_t
1459 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1460 struct lpfc_nodelist *ndlp,
1461 void *arg,
1462 uint32_t evt)
1463 {
1464 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1465 struct lpfc_hba *phba = vport->phba;
1466
1467 /* Don't do anything that will mess up processing of the
1468 * previous RSCN.
1469 */
1470 if (vport->fc_flag & FC_RSCN_DEFERRED)
1471 return ndlp->nlp_state;
1472
1473 /* software abort outstanding PRLI */
1474 lpfc_els_abort(phba, ndlp);
1475
1476 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1477 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1478 spin_lock_irq(shost->host_lock);
1479 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1480 spin_unlock_irq(shost->host_lock);
1481 lpfc_disc_set_adisc(vport, ndlp);
1482 return ndlp->nlp_state;
1483 }
1484
1485 static uint32_t
1486 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1487 void *arg, uint32_t evt)
1488 {
1489 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1490
1491 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1492 return ndlp->nlp_state;
1493 }
1494
1495 static uint32_t
1496 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1497 void *arg, uint32_t evt)
1498 {
1499 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1500
1501 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1502 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1503 return ndlp->nlp_state;
1504 }
1505
1506 static uint32_t
1507 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1508 void *arg, uint32_t evt)
1509 {
1510 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1511
1512 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1513 return ndlp->nlp_state;
1514 }
1515
1516 static uint32_t
1517 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1518 void *arg, uint32_t evt)
1519 {
1520 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1521
1522 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1523 return ndlp->nlp_state;
1524 }
1525
1526 static uint32_t
1527 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1528 void *arg, uint32_t evt)
1529 {
1530 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1531
1532 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1533 return ndlp->nlp_state;
1534 }
1535
1536 static uint32_t
1537 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1538 struct lpfc_nodelist *ndlp,
1539 void *arg,
1540 uint32_t evt)
1541 {
1542 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1543
1544 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1545 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1546 spin_lock_irq(shost->host_lock);
1547 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1548 spin_unlock_irq(shost->host_lock);
1549 lpfc_disc_set_adisc(vport, ndlp);
1550
1551 return ndlp->nlp_state;
1552 }
1553
1554 static uint32_t
1555 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1556 void *arg, uint32_t evt)
1557 {
1558 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1559
1560 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1561 return ndlp->nlp_state;
1562 }
1563
1564 static uint32_t
1565 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1566 void *arg, uint32_t evt)
1567 {
1568 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1569
1570 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1571 return ndlp->nlp_state;
1572 }
1573
1574 static uint32_t
1575 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1576 void *arg, uint32_t evt)
1577 {
1578 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1579
1580 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1581 return ndlp->nlp_state;
1582 }
1583
1584 static uint32_t
1585 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1586 struct lpfc_nodelist *ndlp,
1587 void *arg, uint32_t evt)
1588 {
1589 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1590
1591 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1592 return ndlp->nlp_state;
1593 }
1594
1595 static uint32_t
1596 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1597 void *arg, uint32_t evt)
1598 {
1599 struct lpfc_hba *phba = vport->phba;
1600 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1601
1602 /* flush the target */
1603 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1604 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1605
1606 /* Treat like rcv logo */
1607 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1608 return ndlp->nlp_state;
1609 }
1610
1611 static uint32_t
1612 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1613 struct lpfc_nodelist *ndlp,
1614 void *arg,
1615 uint32_t evt)
1616 {
1617 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1618
1619 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1620 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1621 spin_lock_irq(shost->host_lock);
1622 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1623 spin_unlock_irq(shost->host_lock);
1624 lpfc_disc_set_adisc(vport, ndlp);
1625 return ndlp->nlp_state;
1626 }
1627
1628 static uint32_t
1629 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1630 void *arg, uint32_t evt)
1631 {
1632 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1633 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1634
1635 /* Ignore PLOGI if we have an outstanding LOGO */
1636 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) {
1637 return ndlp->nlp_state;
1638 }
1639
1640 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1641 spin_lock_irq(shost->host_lock);
1642 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1643 spin_unlock_irq(shost->host_lock);
1644 return ndlp->nlp_state;
1645 }
1646
1647 /* send PLOGI immediately, move to PLOGI issue state */
1648 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1649 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1650 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1651 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1652 }
1653
1654 return ndlp->nlp_state;
1655 }
1656
1657 static uint32_t
1658 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1659 void *arg, uint32_t evt)
1660 {
1661 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1662 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1663 struct ls_rjt stat;
1664
1665 memset(&stat, 0, sizeof (struct ls_rjt));
1666 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1667 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1668 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1669
1670 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1671 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1672 spin_lock_irq(shost->host_lock);
1673 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1674 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1675 spin_unlock_irq(shost->host_lock);
1676 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1677 lpfc_issue_els_adisc(vport, ndlp, 0);
1678 } else {
1679 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1680 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1681 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1682 }
1683 }
1684 return ndlp->nlp_state;
1685 }
1686
1687 static uint32_t
1688 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1689 void *arg, uint32_t evt)
1690 {
1691 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1692
1693 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1694 return ndlp->nlp_state;
1695 }
1696
1697 static uint32_t
1698 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1699 void *arg, uint32_t evt)
1700 {
1701 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1702
1703 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1704
1705 /*
1706 * Do not start discovery if discovery is about to start
1707 * or discovery in progress for this node. Starting discovery
1708 * here will affect the counting of discovery threads.
1709 */
1710 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1711 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1712 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1713 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1714 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1715 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1716 lpfc_issue_els_adisc(vport, ndlp, 0);
1717 } else {
1718 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1719 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1720 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1721 }
1722 }
1723 return ndlp->nlp_state;
1724 }
1725
1726 static uint32_t
1727 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1728 void *arg, uint32_t evt)
1729 {
1730 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1731 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1732
1733 spin_lock_irq(shost->host_lock);
1734 ndlp->nlp_flag |= NLP_LOGO_ACC;
1735 spin_unlock_irq(shost->host_lock);
1736
1737 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1738
1739 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
1740 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1741 spin_lock_irq(shost->host_lock);
1742 ndlp->nlp_flag |= NLP_DELAY_TMO;
1743 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1744 spin_unlock_irq(shost->host_lock);
1745 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1746 } else {
1747 spin_lock_irq(shost->host_lock);
1748 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1749 spin_unlock_irq(shost->host_lock);
1750 }
1751 return ndlp->nlp_state;
1752 }
1753
1754 static uint32_t
1755 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1756 void *arg, uint32_t evt)
1757 {
1758 struct lpfc_iocbq *cmdiocb, *rspiocb;
1759 IOCB_t *irsp;
1760
1761 cmdiocb = (struct lpfc_iocbq *) arg;
1762 rspiocb = cmdiocb->context_un.rsp_iocb;
1763
1764 irsp = &rspiocb->iocb;
1765 if (irsp->ulpStatus) {
1766 lpfc_drop_node(vport, ndlp);
1767 return NLP_STE_FREED_NODE;
1768 }
1769 return ndlp->nlp_state;
1770 }
1771
1772 static uint32_t
1773 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1774 void *arg, uint32_t evt)
1775 {
1776 struct lpfc_iocbq *cmdiocb, *rspiocb;
1777 IOCB_t *irsp;
1778
1779 cmdiocb = (struct lpfc_iocbq *) arg;
1780 rspiocb = cmdiocb->context_un.rsp_iocb;
1781
1782 irsp = &rspiocb->iocb;
1783 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1784 lpfc_drop_node(vport, ndlp);
1785 return NLP_STE_FREED_NODE;
1786 }
1787 return ndlp->nlp_state;
1788 }
1789
1790 static uint32_t
1791 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1792 void *arg, uint32_t evt)
1793 {
1794 lpfc_unreg_rpi(vport, ndlp);
1795 /* This routine does nothing, just return the current state */
1796 return ndlp->nlp_state;
1797 }
1798
1799 static uint32_t
1800 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1801 void *arg, uint32_t evt)
1802 {
1803 struct lpfc_iocbq *cmdiocb, *rspiocb;
1804 IOCB_t *irsp;
1805
1806 cmdiocb = (struct lpfc_iocbq *) arg;
1807 rspiocb = cmdiocb->context_un.rsp_iocb;
1808
1809 irsp = &rspiocb->iocb;
1810 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1811 lpfc_drop_node(vport, ndlp);
1812 return NLP_STE_FREED_NODE;
1813 }
1814 return ndlp->nlp_state;
1815 }
1816
1817 static uint32_t
1818 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1819 struct lpfc_nodelist *ndlp,
1820 void *arg, uint32_t evt)
1821 {
1822 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1823 MAILBOX_t *mb = &pmb->mb;
1824
1825 if (!mb->mbxStatus)
1826 ndlp->nlp_rpi = mb->un.varWords[0];
1827 else {
1828 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
1829 lpfc_drop_node(vport, ndlp);
1830 return NLP_STE_FREED_NODE;
1831 }
1832 }
1833 return ndlp->nlp_state;
1834 }
1835
1836 static uint32_t
1837 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1838 void *arg, uint32_t evt)
1839 {
1840 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1841
1842 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1843 spin_lock_irq(shost->host_lock);
1844 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1845 spin_unlock_irq(shost->host_lock);
1846 return ndlp->nlp_state;
1847 }
1848 lpfc_drop_node(vport, ndlp);
1849 return NLP_STE_FREED_NODE;
1850 }
1851
1852 static uint32_t
1853 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1854 void *arg, uint32_t evt)
1855 {
1856 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1857
1858 /* Don't do anything that will mess up processing of the
1859 * previous RSCN.
1860 */
1861 if (vport->fc_flag & FC_RSCN_DEFERRED)
1862 return ndlp->nlp_state;
1863
1864 spin_lock_irq(shost->host_lock);
1865 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1866 spin_unlock_irq(shost->host_lock);
1867 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1868 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1869 }
1870 return ndlp->nlp_state;
1871 }
1872
1873
1874 /* This next section defines the NPort Discovery State Machine */
1875
1876 /* There are 4 different double linked lists nodelist entries can reside on.
1877 * The plogi list and adisc list are used when Link Up discovery or RSCN
1878 * processing is needed. Each list holds the nodes that we will send PLOGI
1879 * or ADISC on. These lists will keep track of what nodes will be effected
1880 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1881 * The unmapped_list will contain all nodes that we have successfully logged
1882 * into at the Fibre Channel level. The mapped_list will contain all nodes
1883 * that are mapped FCP targets.
1884 */
1885 /*
1886 * The bind list is a list of undiscovered (potentially non-existent) nodes
1887 * that we have saved binding information on. This information is used when
1888 * nodes transition from the unmapped to the mapped list.
1889 */
1890 /* For UNUSED_NODE state, the node has just been allocated .
1891 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1892 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1893 * and put on the unmapped list. For ADISC processing, the node is taken off
1894 * the ADISC list and placed on either the mapped or unmapped list (depending
1895 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1896 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1897 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1898 * node, the node is taken off the unmapped list. The binding list is checked
1899 * for a valid binding, or a binding is automatically assigned. If binding
1900 * assignment is unsuccessful, the node is left on the unmapped list. If
1901 * binding assignment is successful, the associated binding list entry (if
1902 * any) is removed, and the node is placed on the mapped list.
1903 */
1904 /*
1905 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1906 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
1907 * expire, all effected nodes will receive a DEVICE_RM event.
1908 */
1909 /*
1910 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1911 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1912 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1913 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1914 * we will first process the ADISC list. 32 entries are processed initially and
1915 * ADISC is initited for each one. Completions / Events for each node are
1916 * funnelled thru the state machine. As each node finishes ADISC processing, it
1917 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1918 * waiting, and the ADISC list count is identically 0, then we are done. For
1919 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1920 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1921 * list. 32 entries are processed initially and PLOGI is initited for each one.
1922 * Completions / Events for each node are funnelled thru the state machine. As
1923 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1924 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1925 * indentically 0, then we are done. We have now completed discovery / RSCN
1926 * handling. Upon completion, ALL nodes should be on either the mapped or
1927 * unmapped lists.
1928 */
1929
1930 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1931 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
1932 /* Action routine Event Current State */
1933 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1934 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1935 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1936 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1937 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1938 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1939 lpfc_disc_illegal, /* CMPL_PLOGI */
1940 lpfc_disc_illegal, /* CMPL_PRLI */
1941 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1942 lpfc_disc_illegal, /* CMPL_ADISC */
1943 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1944 lpfc_device_rm_unused_node, /* DEVICE_RM */
1945 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1946
1947 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1948 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
1949 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
1950 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1951 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1952 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1953 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1954 lpfc_disc_illegal, /* CMPL_PRLI */
1955 lpfc_disc_illegal, /* CMPL_LOGO */
1956 lpfc_disc_illegal, /* CMPL_ADISC */
1957 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1958 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1959 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1960
1961 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1962 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1963 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1964 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1965 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1966 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1967 lpfc_disc_illegal, /* CMPL_PLOGI */
1968 lpfc_disc_illegal, /* CMPL_PRLI */
1969 lpfc_disc_illegal, /* CMPL_LOGO */
1970 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1971 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1972 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1973 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1974
1975 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1976 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1977 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1978 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1979 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1980 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1981 lpfc_disc_illegal, /* CMPL_PLOGI */
1982 lpfc_disc_illegal, /* CMPL_PRLI */
1983 lpfc_disc_illegal, /* CMPL_LOGO */
1984 lpfc_disc_illegal, /* CMPL_ADISC */
1985 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1986 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1987 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1988
1989 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1990 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1991 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1992 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1993 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1994 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1995 lpfc_disc_illegal, /* CMPL_PLOGI */
1996 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1997 lpfc_disc_illegal, /* CMPL_LOGO */
1998 lpfc_disc_illegal, /* CMPL_ADISC */
1999 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2000 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2001 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2002
2003 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2004 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2005 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2006 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2007 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2008 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2009 lpfc_disc_illegal, /* CMPL_PLOGI */
2010 lpfc_disc_illegal, /* CMPL_PRLI */
2011 lpfc_disc_illegal, /* CMPL_LOGO */
2012 lpfc_disc_illegal, /* CMPL_ADISC */
2013 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2014 lpfc_disc_illegal, /* DEVICE_RM */
2015 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2016
2017 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2018 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2019 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2020 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2021 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2022 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2023 lpfc_disc_illegal, /* CMPL_PLOGI */
2024 lpfc_disc_illegal, /* CMPL_PRLI */
2025 lpfc_disc_illegal, /* CMPL_LOGO */
2026 lpfc_disc_illegal, /* CMPL_ADISC */
2027 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2028 lpfc_disc_illegal, /* DEVICE_RM */
2029 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2030
2031 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2032 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2033 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2034 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2035 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2036 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2037 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2038 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2039 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2040 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2041 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2042 lpfc_device_rm_npr_node, /* DEVICE_RM */
2043 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2044 };
2045
2046 int
2047 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2048 void *arg, uint32_t evt)
2049 {
2050 struct lpfc_hba *phba = vport->phba;
2051 uint32_t cur_state, rc;
2052 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2053 uint32_t);
2054
2055 lpfc_nlp_get(ndlp);
2056 cur_state = ndlp->nlp_state;
2057
2058 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2059 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2060 "%d (%d):0211 DSM in event x%x on NPort x%x in "
2061 "state %d Data: x%x\n",
2062 phba->brd_no, vport->vpi,
2063 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2064
2065 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2066 "DSM in: evt:%d ste:%d did:x%x",
2067 evt, cur_state, ndlp->nlp_DID);
2068
2069 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2070 rc = (func) (vport, ndlp, arg, evt);
2071
2072 /* DSM out state <rc> on NPort <nlp_DID> */
2073 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2074 "%d (%d):0212 DSM out state %d on NPort x%x "
2075 "Data: x%x\n",
2076 phba->brd_no, vport->vpi,
2077 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2078
2079 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2080 "DSM out: ste:%d did:x%x flg:x%x",
2081 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2082
2083 lpfc_nlp_put(ndlp);
2084
2085 return rc;
2086 }
kernel source for telekom puls (alcatel/mediatek)