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[SCSI] lpfc 8.2.2 : Attribute and Parameter splits for vport and physical port
[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 (vport->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 vport->cfg_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
568 /* Check config parameter use-adisc or FCP-2 */
569 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
570 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
571 spin_lock_irq(shost->host_lock);
572 ndlp->nlp_flag |= NLP_NPR_ADISC;
573 spin_unlock_irq(shost->host_lock);
574 return 1;
575 }
576 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
577 lpfc_unreg_rpi(vport, ndlp);
578 return 0;
579 }
580
581 static uint32_t
582 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
583 void *arg, uint32_t evt)
584 {
585 lpfc_printf_log(vport->phba, KERN_ERR, LOG_DISCOVERY,
586 "%d (%d):0253 Illegal State Transition: node x%x "
587 "event x%x, state x%x Data: x%x x%x\n",
588 vport->phba->brd_no, vport->vpi,
589 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
590 ndlp->nlp_flag);
591 return ndlp->nlp_state;
592 }
593
594 /* Start of Discovery State Machine routines */
595
596 static uint32_t
597 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
598 void *arg, uint32_t evt)
599 {
600 struct lpfc_iocbq *cmdiocb;
601
602 cmdiocb = (struct lpfc_iocbq *) arg;
603
604 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
605 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
606 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
607 return ndlp->nlp_state;
608 }
609 lpfc_drop_node(vport, ndlp);
610 return NLP_STE_FREED_NODE;
611 }
612
613 static uint32_t
614 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
615 void *arg, uint32_t evt)
616 {
617 lpfc_issue_els_logo(vport, ndlp, 0);
618 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
619 return ndlp->nlp_state;
620 }
621
622 static uint32_t
623 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
624 void *arg, uint32_t evt)
625 {
626 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
627 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
628
629 spin_lock_irq(shost->host_lock);
630 ndlp->nlp_flag |= NLP_LOGO_ACC;
631 spin_unlock_irq(shost->host_lock);
632 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
633 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
634
635 return ndlp->nlp_state;
636 }
637
638 static uint32_t
639 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
640 void *arg, uint32_t evt)
641 {
642 lpfc_drop_node(vport, ndlp);
643 return NLP_STE_FREED_NODE;
644 }
645
646 static uint32_t
647 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
648 void *arg, uint32_t evt)
649 {
650 lpfc_drop_node(vport, ndlp);
651 return NLP_STE_FREED_NODE;
652 }
653
654 static uint32_t
655 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
656 void *arg, uint32_t evt)
657 {
658 struct lpfc_hba *phba = vport->phba;
659 struct lpfc_iocbq *cmdiocb = arg;
660 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
661 uint32_t *lp = (uint32_t *) pcmd->virt;
662 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
663 struct ls_rjt stat;
664 int port_cmp;
665
666 memset(&stat, 0, sizeof (struct ls_rjt));
667
668 /* For a PLOGI, we only accept if our portname is less
669 * than the remote portname.
670 */
671 phba->fc_stat.elsLogiCol++;
672 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
673 sizeof(struct lpfc_name));
674
675 if (port_cmp >= 0) {
676 /* Reject this request because the remote node will accept
677 ours */
678 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
679 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
680 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
681 NULL);
682 } else {
683 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
684 } /* If our portname was less */
685
686 return ndlp->nlp_state;
687 }
688
689 static uint32_t
690 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
691 void *arg, uint32_t evt)
692 {
693 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
694 struct ls_rjt stat;
695
696 memset(&stat, 0, sizeof (struct ls_rjt));
697 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
698 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
699 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
700 return ndlp->nlp_state;
701 }
702
703 static uint32_t
704 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
705 void *arg, uint32_t evt)
706 {
707 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
708
709 /* software abort outstanding PLOGI */
710 lpfc_els_abort(vport->phba, ndlp);
711
712 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
713 return ndlp->nlp_state;
714 }
715
716 static uint32_t
717 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
718 void *arg, uint32_t evt)
719 {
720 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
721 struct lpfc_hba *phba = vport->phba;
722 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
723
724 /* software abort outstanding PLOGI */
725 lpfc_els_abort(phba, ndlp);
726
727 if (evt == NLP_EVT_RCV_LOGO) {
728 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
729 } else {
730 lpfc_issue_els_logo(vport, ndlp, 0);
731 }
732
733 /* Put ndlp in npr state set plogi timer for 1 sec */
734 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
735 spin_lock_irq(shost->host_lock);
736 ndlp->nlp_flag |= NLP_DELAY_TMO;
737 spin_unlock_irq(shost->host_lock);
738 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
739 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
740 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
741
742 return ndlp->nlp_state;
743 }
744
745 static uint32_t
746 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
747 struct lpfc_nodelist *ndlp,
748 void *arg,
749 uint32_t evt)
750 {
751 struct lpfc_hba *phba = vport->phba;
752 struct lpfc_iocbq *cmdiocb, *rspiocb;
753 struct lpfc_dmabuf *pcmd, *prsp, *mp;
754 uint32_t *lp;
755 IOCB_t *irsp;
756 struct serv_parm *sp;
757 LPFC_MBOXQ_t *mbox;
758
759 cmdiocb = (struct lpfc_iocbq *) arg;
760 rspiocb = cmdiocb->context_un.rsp_iocb;
761
762 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
763 /* Recovery from PLOGI collision logic */
764 return ndlp->nlp_state;
765 }
766
767 irsp = &rspiocb->iocb;
768
769 if (irsp->ulpStatus)
770 goto out;
771
772 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
773
774 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
775
776 lp = (uint32_t *) prsp->virt;
777 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
778 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
779 goto out;
780
781 /* PLOGI chkparm OK */
782 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
783 "%d (%d):0121 PLOGI chkparm OK "
784 "Data: x%x x%x x%x x%x\n",
785 phba->brd_no, vport->vpi,
786 ndlp->nlp_DID, ndlp->nlp_state,
787 ndlp->nlp_flag, ndlp->nlp_rpi);
788
789 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
790 ndlp->nlp_fcp_info |= CLASS2;
791 else
792 ndlp->nlp_fcp_info |= CLASS3;
793
794 ndlp->nlp_class_sup = 0;
795 if (sp->cls1.classValid)
796 ndlp->nlp_class_sup |= FC_COS_CLASS1;
797 if (sp->cls2.classValid)
798 ndlp->nlp_class_sup |= FC_COS_CLASS2;
799 if (sp->cls3.classValid)
800 ndlp->nlp_class_sup |= FC_COS_CLASS3;
801 if (sp->cls4.classValid)
802 ndlp->nlp_class_sup |= FC_COS_CLASS4;
803 ndlp->nlp_maxframe =
804 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
805
806 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
807 if (!mbox) {
808 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
809 "%d (%d):0133 PLOGI: no memory for reg_login "
810 "Data: x%x x%x x%x x%x\n",
811 phba->brd_no, vport->vpi,
812 ndlp->nlp_DID, ndlp->nlp_state,
813 ndlp->nlp_flag, ndlp->nlp_rpi);
814 goto out;
815 }
816
817 lpfc_unreg_rpi(vport, ndlp);
818
819 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
820 (uint8_t *) sp, mbox, 0) == 0) {
821 switch (ndlp->nlp_DID) {
822 case NameServer_DID:
823 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
824 break;
825 case FDMI_DID:
826 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
827 break;
828 default:
829 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
830 }
831 mbox->context2 = lpfc_nlp_get(ndlp);
832 mbox->vport = vport;
833 if (lpfc_sli_issue_mbox(phba, mbox,
834 (MBX_NOWAIT | MBX_STOP_IOCB))
835 != MBX_NOT_FINISHED) {
836 lpfc_nlp_set_state(vport, ndlp,
837 NLP_STE_REG_LOGIN_ISSUE);
838 return ndlp->nlp_state;
839 }
840 lpfc_nlp_put(ndlp);
841 mp = (struct lpfc_dmabuf *) mbox->context1;
842 lpfc_mbuf_free(phba, mp->virt, mp->phys);
843 kfree(mp);
844 mempool_free(mbox, phba->mbox_mem_pool);
845
846 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
847 "%d (%d):0134 PLOGI: cannot issue reg_login "
848 "Data: x%x x%x x%x x%x\n",
849 phba->brd_no, vport->vpi,
850 ndlp->nlp_DID, ndlp->nlp_state,
851 ndlp->nlp_flag, ndlp->nlp_rpi);
852 } else {
853 mempool_free(mbox, phba->mbox_mem_pool);
854
855 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
856 "%d (%d):0135 PLOGI: cannot format reg_login "
857 "Data: x%x x%x x%x x%x\n",
858 phba->brd_no, vport->vpi,
859 ndlp->nlp_DID, ndlp->nlp_state,
860 ndlp->nlp_flag, ndlp->nlp_rpi);
861 }
862
863
864 out:
865 if (ndlp->nlp_DID == NameServer_DID) {
866 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
867 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
868 "%d (%d):0261 Cannot Register NameServer login\n",
869 phba->brd_no, vport->vpi);
870 }
871
872 /* Free this node since the driver cannot login or has the wrong
873 sparm */
874 lpfc_drop_node(vport, ndlp);
875 return NLP_STE_FREED_NODE;
876 }
877
878 static uint32_t
879 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
880 void *arg, uint32_t evt)
881 {
882 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
883
884 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
885 spin_lock_irq(shost->host_lock);
886 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
887 spin_unlock_irq(shost->host_lock);
888 return ndlp->nlp_state;
889 } else {
890 /* software abort outstanding PLOGI */
891 lpfc_els_abort(vport->phba, ndlp);
892
893 lpfc_drop_node(vport, ndlp);
894 return NLP_STE_FREED_NODE;
895 }
896 }
897
898 static uint32_t
899 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
900 struct lpfc_nodelist *ndlp,
901 void *arg,
902 uint32_t evt)
903 {
904 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
905 struct lpfc_hba *phba = vport->phba;
906
907 /* Don't do anything that will mess up processing of the
908 * previous RSCN.
909 */
910 if (vport->fc_flag & FC_RSCN_DEFERRED)
911 return ndlp->nlp_state;
912
913 /* software abort outstanding PLOGI */
914 lpfc_els_abort(phba, ndlp);
915
916 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
917 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
918 spin_lock_irq(shost->host_lock);
919 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
920 spin_unlock_irq(shost->host_lock);
921
922 return ndlp->nlp_state;
923 }
924
925 static uint32_t
926 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
927 void *arg, uint32_t evt)
928 {
929 struct lpfc_hba *phba = vport->phba;
930 struct lpfc_iocbq *cmdiocb;
931
932 /* software abort outstanding ADISC */
933 lpfc_els_abort(phba, ndlp);
934
935 cmdiocb = (struct lpfc_iocbq *) arg;
936
937 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb))
938 return ndlp->nlp_state;
939
940 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
941 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
942 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
943
944 return ndlp->nlp_state;
945 }
946
947 static uint32_t
948 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
949 void *arg, uint32_t evt)
950 {
951 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
952
953 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
954 return ndlp->nlp_state;
955 }
956
957 static uint32_t
958 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
959 void *arg, uint32_t evt)
960 {
961 struct lpfc_hba *phba = vport->phba;
962 struct lpfc_iocbq *cmdiocb;
963
964 cmdiocb = (struct lpfc_iocbq *) arg;
965
966 /* software abort outstanding ADISC */
967 lpfc_els_abort(phba, ndlp);
968
969 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
970 return ndlp->nlp_state;
971 }
972
973 static uint32_t
974 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
975 struct lpfc_nodelist *ndlp,
976 void *arg, uint32_t evt)
977 {
978 struct lpfc_iocbq *cmdiocb;
979
980 cmdiocb = (struct lpfc_iocbq *) arg;
981
982 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
983 return ndlp->nlp_state;
984 }
985
986 static uint32_t
987 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
988 void *arg, uint32_t evt)
989 {
990 struct lpfc_iocbq *cmdiocb;
991
992 cmdiocb = (struct lpfc_iocbq *) arg;
993
994 /* Treat like rcv logo */
995 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
996 return ndlp->nlp_state;
997 }
998
999 static uint32_t
1000 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1001 struct lpfc_nodelist *ndlp,
1002 void *arg, uint32_t evt)
1003 {
1004 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1005 struct lpfc_hba *phba = vport->phba;
1006 struct lpfc_iocbq *cmdiocb, *rspiocb;
1007 IOCB_t *irsp;
1008 ADISC *ap;
1009
1010 cmdiocb = (struct lpfc_iocbq *) arg;
1011 rspiocb = cmdiocb->context_un.rsp_iocb;
1012
1013 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1014 irsp = &rspiocb->iocb;
1015
1016 if ((irsp->ulpStatus) ||
1017 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1018 /* 1 sec timeout */
1019 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1020 spin_lock_irq(shost->host_lock);
1021 ndlp->nlp_flag |= NLP_DELAY_TMO;
1022 spin_unlock_irq(shost->host_lock);
1023 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1024
1025 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1026 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1027
1028 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1029 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1030 lpfc_unreg_rpi(vport, ndlp);
1031 return ndlp->nlp_state;
1032 }
1033
1034 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1035 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1036 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1037 } else {
1038 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1039 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1040 }
1041 return ndlp->nlp_state;
1042 }
1043
1044 static uint32_t
1045 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1046 void *arg, uint32_t evt)
1047 {
1048 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1049
1050 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1051 spin_lock_irq(shost->host_lock);
1052 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1053 spin_unlock_irq(shost->host_lock);
1054 return ndlp->nlp_state;
1055 } else {
1056 /* software abort outstanding ADISC */
1057 lpfc_els_abort(vport->phba, ndlp);
1058
1059 lpfc_drop_node(vport, ndlp);
1060 return NLP_STE_FREED_NODE;
1061 }
1062 }
1063
1064 static uint32_t
1065 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1066 struct lpfc_nodelist *ndlp,
1067 void *arg,
1068 uint32_t evt)
1069 {
1070 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1071 struct lpfc_hba *phba = vport->phba;
1072
1073 /* Don't do anything that will mess up processing of the
1074 * previous RSCN.
1075 */
1076 if (vport->fc_flag & FC_RSCN_DEFERRED)
1077 return ndlp->nlp_state;
1078
1079 /* software abort outstanding ADISC */
1080 lpfc_els_abort(phba, ndlp);
1081
1082 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1083 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1084 spin_lock_irq(shost->host_lock);
1085 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1086 spin_unlock_irq(shost->host_lock);
1087 lpfc_disc_set_adisc(vport, ndlp);
1088 return ndlp->nlp_state;
1089 }
1090
1091 static uint32_t
1092 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1093 struct lpfc_nodelist *ndlp,
1094 void *arg,
1095 uint32_t evt)
1096 {
1097 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1098
1099 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1100 return ndlp->nlp_state;
1101 }
1102
1103 static uint32_t
1104 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1105 struct lpfc_nodelist *ndlp,
1106 void *arg,
1107 uint32_t evt)
1108 {
1109 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1110
1111 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1112 return ndlp->nlp_state;
1113 }
1114
1115 static uint32_t
1116 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1117 struct lpfc_nodelist *ndlp,
1118 void *arg,
1119 uint32_t evt)
1120 {
1121 struct lpfc_hba *phba = vport->phba;
1122 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1123 LPFC_MBOXQ_t *mb;
1124 LPFC_MBOXQ_t *nextmb;
1125 struct lpfc_dmabuf *mp;
1126
1127 cmdiocb = (struct lpfc_iocbq *) arg;
1128
1129 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1130 if ((mb = phba->sli.mbox_active)) {
1131 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1132 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1133 lpfc_nlp_put(ndlp);
1134 mb->context2 = NULL;
1135 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1136 }
1137 }
1138
1139 spin_lock_irq(&phba->hbalock);
1140 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1141 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1142 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1143 mp = (struct lpfc_dmabuf *) (mb->context1);
1144 if (mp) {
1145 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1146 kfree(mp);
1147 }
1148 lpfc_nlp_put(ndlp);
1149 list_del(&mb->list);
1150 mempool_free(mb, phba->mbox_mem_pool);
1151 }
1152 }
1153 spin_unlock_irq(&phba->hbalock);
1154
1155 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1156 return ndlp->nlp_state;
1157 }
1158
1159 static uint32_t
1160 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1161 struct lpfc_nodelist *ndlp,
1162 void *arg,
1163 uint32_t evt)
1164 {
1165 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1166
1167 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1168 return ndlp->nlp_state;
1169 }
1170
1171 static uint32_t
1172 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1173 struct lpfc_nodelist *ndlp,
1174 void *arg,
1175 uint32_t evt)
1176 {
1177 struct lpfc_iocbq *cmdiocb;
1178
1179 cmdiocb = (struct lpfc_iocbq *) arg;
1180 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1181 return ndlp->nlp_state;
1182 }
1183
1184 static uint32_t
1185 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1186 struct lpfc_nodelist *ndlp,
1187 void *arg,
1188 uint32_t evt)
1189 {
1190 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1191 struct lpfc_hba *phba = vport->phba;
1192 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1193 MAILBOX_t *mb = &pmb->mb;
1194 uint32_t did = mb->un.varWords[1];
1195
1196 if (mb->mbxStatus) {
1197 /* RegLogin failed */
1198 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
1199 "%d (%d):0246 RegLogin failed Data: x%x x%x "
1200 "x%x\n",
1201 phba->brd_no, vport->vpi,
1202 did, mb->mbxStatus, vport->port_state);
1203
1204 /*
1205 * If RegLogin failed due to lack of HBA resources do not
1206 * retry discovery.
1207 */
1208 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1209 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
1210 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1211 return ndlp->nlp_state;
1212 }
1213
1214 /* Put ndlp in npr state set plogi timer for 1 sec */
1215 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1216 spin_lock_irq(shost->host_lock);
1217 ndlp->nlp_flag |= NLP_DELAY_TMO;
1218 spin_unlock_irq(shost->host_lock);
1219 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1220
1221 lpfc_issue_els_logo(vport, ndlp, 0);
1222 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1223 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1224 return ndlp->nlp_state;
1225 }
1226
1227 ndlp->nlp_rpi = mb->un.varWords[0];
1228
1229 /* Only if we are not a fabric nport do we issue PRLI */
1230 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1231 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1232 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1233 lpfc_issue_els_prli(vport, ndlp, 0);
1234 } else {
1235 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1236 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1237 }
1238 return ndlp->nlp_state;
1239 }
1240
1241 static uint32_t
1242 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1243 struct lpfc_nodelist *ndlp,
1244 void *arg,
1245 uint32_t evt)
1246 {
1247 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1248
1249 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1250 spin_lock_irq(shost->host_lock);
1251 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1252 spin_unlock_irq(shost->host_lock);
1253 return ndlp->nlp_state;
1254 } else {
1255 lpfc_drop_node(vport, ndlp);
1256 return NLP_STE_FREED_NODE;
1257 }
1258 }
1259
1260 static uint32_t
1261 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1262 struct lpfc_nodelist *ndlp,
1263 void *arg,
1264 uint32_t evt)
1265 {
1266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1267
1268 /* Don't do anything that will mess up processing of the
1269 * previous RSCN.
1270 */
1271 if (vport->fc_flag & FC_RSCN_DEFERRED)
1272 return ndlp->nlp_state;
1273
1274 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1275 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1276 spin_lock_irq(shost->host_lock);
1277 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1278 spin_unlock_irq(shost->host_lock);
1279 lpfc_disc_set_adisc(vport, ndlp);
1280 return ndlp->nlp_state;
1281 }
1282
1283 static uint32_t
1284 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1285 void *arg, uint32_t evt)
1286 {
1287 struct lpfc_iocbq *cmdiocb;
1288
1289 cmdiocb = (struct lpfc_iocbq *) arg;
1290
1291 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1292 return ndlp->nlp_state;
1293 }
1294
1295 static uint32_t
1296 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1297 void *arg, uint32_t evt)
1298 {
1299 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1300
1301 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1302 return ndlp->nlp_state;
1303 }
1304
1305 static uint32_t
1306 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1307 void *arg, uint32_t evt)
1308 {
1309 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1310
1311 /* Software abort outstanding PRLI before sending acc */
1312 lpfc_els_abort(vport->phba, ndlp);
1313
1314 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1315 return ndlp->nlp_state;
1316 }
1317
1318 static uint32_t
1319 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1320 void *arg, uint32_t evt)
1321 {
1322 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1323
1324 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1325 return ndlp->nlp_state;
1326 }
1327
1328 /* This routine is envoked when we rcv a PRLO request from a nport
1329 * we are logged into. We should send back a PRLO rsp setting the
1330 * appropriate bits.
1331 * NEXT STATE = PRLI_ISSUE
1332 */
1333 static uint32_t
1334 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1335 void *arg, uint32_t evt)
1336 {
1337 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1338
1339 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1340 return ndlp->nlp_state;
1341 }
1342
1343 static uint32_t
1344 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1345 void *arg, uint32_t evt)
1346 {
1347 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1348 struct lpfc_iocbq *cmdiocb, *rspiocb;
1349 struct lpfc_hba *phba = vport->phba;
1350 IOCB_t *irsp;
1351 PRLI *npr;
1352
1353 cmdiocb = (struct lpfc_iocbq *) arg;
1354 rspiocb = cmdiocb->context_un.rsp_iocb;
1355 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1356
1357 irsp = &rspiocb->iocb;
1358 if (irsp->ulpStatus) {
1359 if ((vport->port_type == LPFC_NPIV_PORT) &&
1360 vport->cfg_restrict_login) {
1361 goto out;
1362 }
1363 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1364 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1365 return ndlp->nlp_state;
1366 }
1367
1368 /* Check out PRLI rsp */
1369 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1370 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1371 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1372 (npr->prliType == PRLI_FCP_TYPE)) {
1373 if (npr->initiatorFunc)
1374 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1375 if (npr->targetFunc)
1376 ndlp->nlp_type |= NLP_FCP_TARGET;
1377 if (npr->Retry)
1378 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1379 }
1380 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1381 (vport->port_type == LPFC_NPIV_PORT) &&
1382 vport->cfg_restrict_login) {
1383 out:
1384 spin_lock_irq(shost->host_lock);
1385 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1386 spin_unlock_irq(shost->host_lock);
1387 lpfc_issue_els_logo(vport, ndlp, 0);
1388
1389 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1390 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1391 return ndlp->nlp_state;
1392 }
1393
1394 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1395 if (ndlp->nlp_type & NLP_FCP_TARGET)
1396 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1397 else
1398 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1399 return ndlp->nlp_state;
1400 }
1401
1402 /*! lpfc_device_rm_prli_issue
1403 *
1404 * \pre
1405 * \post
1406 * \param phba
1407 * \param ndlp
1408 * \param arg
1409 * \param evt
1410 * \return uint32_t
1411 *
1412 * \b Description:
1413 * This routine is envoked when we a request to remove a nport we are in the
1414 * process of PRLIing. We should software abort outstanding prli, unreg
1415 * login, send a logout. We will change node state to UNUSED_NODE, put it
1416 * on plogi list so it can be freed when LOGO completes.
1417 *
1418 */
1419
1420 static uint32_t
1421 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1422 void *arg, uint32_t evt)
1423 {
1424 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1425
1426 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1427 spin_lock_irq(shost->host_lock);
1428 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1429 spin_unlock_irq(shost->host_lock);
1430 return ndlp->nlp_state;
1431 } else {
1432 /* software abort outstanding PLOGI */
1433 lpfc_els_abort(vport->phba, ndlp);
1434
1435 lpfc_drop_node(vport, ndlp);
1436 return NLP_STE_FREED_NODE;
1437 }
1438 }
1439
1440
1441 /*! lpfc_device_recov_prli_issue
1442 *
1443 * \pre
1444 * \post
1445 * \param phba
1446 * \param ndlp
1447 * \param arg
1448 * \param evt
1449 * \return uint32_t
1450 *
1451 * \b Description:
1452 * The routine is envoked when the state of a device is unknown, like
1453 * during a link down. We should remove the nodelist entry from the
1454 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1455 * outstanding PRLI command, then free the node entry.
1456 */
1457 static uint32_t
1458 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1459 struct lpfc_nodelist *ndlp,
1460 void *arg,
1461 uint32_t evt)
1462 {
1463 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1464 struct lpfc_hba *phba = vport->phba;
1465
1466 /* Don't do anything that will mess up processing of the
1467 * previous RSCN.
1468 */
1469 if (vport->fc_flag & FC_RSCN_DEFERRED)
1470 return ndlp->nlp_state;
1471
1472 /* software abort outstanding PRLI */
1473 lpfc_els_abort(phba, ndlp);
1474
1475 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1476 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1477 spin_lock_irq(shost->host_lock);
1478 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1479 spin_unlock_irq(shost->host_lock);
1480 lpfc_disc_set_adisc(vport, ndlp);
1481 return ndlp->nlp_state;
1482 }
1483
1484 static uint32_t
1485 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1486 void *arg, uint32_t evt)
1487 {
1488 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1489
1490 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1491 return ndlp->nlp_state;
1492 }
1493
1494 static uint32_t
1495 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1496 void *arg, uint32_t evt)
1497 {
1498 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1499
1500 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1501 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1502 return ndlp->nlp_state;
1503 }
1504
1505 static uint32_t
1506 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1507 void *arg, uint32_t evt)
1508 {
1509 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1510
1511 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1512 return ndlp->nlp_state;
1513 }
1514
1515 static uint32_t
1516 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1517 void *arg, uint32_t evt)
1518 {
1519 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1520
1521 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1522 return ndlp->nlp_state;
1523 }
1524
1525 static uint32_t
1526 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1527 void *arg, uint32_t evt)
1528 {
1529 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1530
1531 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
1532 return ndlp->nlp_state;
1533 }
1534
1535 static uint32_t
1536 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1537 struct lpfc_nodelist *ndlp,
1538 void *arg,
1539 uint32_t evt)
1540 {
1541 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1542
1543 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1544 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1545 spin_lock_irq(shost->host_lock);
1546 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1547 spin_unlock_irq(shost->host_lock);
1548 lpfc_disc_set_adisc(vport, ndlp);
1549
1550 return ndlp->nlp_state;
1551 }
1552
1553 static uint32_t
1554 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1555 void *arg, uint32_t evt)
1556 {
1557 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1558
1559 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1560 return ndlp->nlp_state;
1561 }
1562
1563 static uint32_t
1564 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1565 void *arg, uint32_t evt)
1566 {
1567 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1568
1569 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1570 return ndlp->nlp_state;
1571 }
1572
1573 static uint32_t
1574 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1575 void *arg, uint32_t evt)
1576 {
1577 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1578
1579 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1580 return ndlp->nlp_state;
1581 }
1582
1583 static uint32_t
1584 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1585 struct lpfc_nodelist *ndlp,
1586 void *arg, uint32_t evt)
1587 {
1588 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1589
1590 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1591 return ndlp->nlp_state;
1592 }
1593
1594 static uint32_t
1595 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1596 void *arg, uint32_t evt)
1597 {
1598 struct lpfc_hba *phba = vport->phba;
1599 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1600
1601 /* flush the target */
1602 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1603 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1604
1605 /* Treat like rcv logo */
1606 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1607 return ndlp->nlp_state;
1608 }
1609
1610 static uint32_t
1611 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1612 struct lpfc_nodelist *ndlp,
1613 void *arg,
1614 uint32_t evt)
1615 {
1616 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1617
1618 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1620 spin_lock_irq(shost->host_lock);
1621 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1622 spin_unlock_irq(shost->host_lock);
1623 lpfc_disc_set_adisc(vport, ndlp);
1624 return ndlp->nlp_state;
1625 }
1626
1627 static uint32_t
1628 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1629 void *arg, uint32_t evt)
1630 {
1631 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1632 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1633
1634 /* Ignore PLOGI if we have an outstanding LOGO */
1635 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) {
1636 return ndlp->nlp_state;
1637 }
1638
1639 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1640 spin_lock_irq(shost->host_lock);
1641 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1642 spin_unlock_irq(shost->host_lock);
1643 return ndlp->nlp_state;
1644 }
1645
1646 /* send PLOGI immediately, move to PLOGI issue state */
1647 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1648 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1649 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1650 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1651 }
1652
1653 return ndlp->nlp_state;
1654 }
1655
1656 static uint32_t
1657 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1658 void *arg, uint32_t evt)
1659 {
1660 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1661 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1662 struct ls_rjt stat;
1663
1664 memset(&stat, 0, sizeof (struct ls_rjt));
1665 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1666 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1667 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1668
1669 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1670 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1671 spin_lock_irq(shost->host_lock);
1672 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1673 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1674 spin_unlock_irq(shost->host_lock);
1675 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1676 lpfc_issue_els_adisc(vport, ndlp, 0);
1677 } else {
1678 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1679 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1680 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1681 }
1682 }
1683 return ndlp->nlp_state;
1684 }
1685
1686 static uint32_t
1687 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1688 void *arg, uint32_t evt)
1689 {
1690 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1691
1692 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1693 return ndlp->nlp_state;
1694 }
1695
1696 static uint32_t
1697 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1698 void *arg, uint32_t evt)
1699 {
1700 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1701
1702 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1703
1704 /*
1705 * Do not start discovery if discovery is about to start
1706 * or discovery in progress for this node. Starting discovery
1707 * here will affect the counting of discovery threads.
1708 */
1709 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1710 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1711 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1712 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1713 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1714 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1715 lpfc_issue_els_adisc(vport, ndlp, 0);
1716 } else {
1717 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1718 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1719 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1720 }
1721 }
1722 return ndlp->nlp_state;
1723 }
1724
1725 static uint32_t
1726 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1727 void *arg, uint32_t evt)
1728 {
1729 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1730 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1731
1732 spin_lock_irq(shost->host_lock);
1733 ndlp->nlp_flag |= NLP_LOGO_ACC;
1734 spin_unlock_irq(shost->host_lock);
1735
1736 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1737
1738 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
1739 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1740 spin_lock_irq(shost->host_lock);
1741 ndlp->nlp_flag |= NLP_DELAY_TMO;
1742 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1743 spin_unlock_irq(shost->host_lock);
1744 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1745 } else {
1746 spin_lock_irq(shost->host_lock);
1747 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1748 spin_unlock_irq(shost->host_lock);
1749 }
1750 return ndlp->nlp_state;
1751 }
1752
1753 static uint32_t
1754 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1755 void *arg, uint32_t evt)
1756 {
1757 struct lpfc_iocbq *cmdiocb, *rspiocb;
1758 IOCB_t *irsp;
1759
1760 cmdiocb = (struct lpfc_iocbq *) arg;
1761 rspiocb = cmdiocb->context_un.rsp_iocb;
1762
1763 irsp = &rspiocb->iocb;
1764 if (irsp->ulpStatus) {
1765 lpfc_drop_node(vport, ndlp);
1766 return NLP_STE_FREED_NODE;
1767 }
1768 return ndlp->nlp_state;
1769 }
1770
1771 static uint32_t
1772 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1773 void *arg, uint32_t evt)
1774 {
1775 struct lpfc_iocbq *cmdiocb, *rspiocb;
1776 IOCB_t *irsp;
1777
1778 cmdiocb = (struct lpfc_iocbq *) arg;
1779 rspiocb = cmdiocb->context_un.rsp_iocb;
1780
1781 irsp = &rspiocb->iocb;
1782 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1783 lpfc_drop_node(vport, ndlp);
1784 return NLP_STE_FREED_NODE;
1785 }
1786 return ndlp->nlp_state;
1787 }
1788
1789 static uint32_t
1790 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1791 void *arg, uint32_t evt)
1792 {
1793 lpfc_unreg_rpi(vport, ndlp);
1794 /* This routine does nothing, just return the current state */
1795 return ndlp->nlp_state;
1796 }
1797
1798 static uint32_t
1799 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1800 void *arg, uint32_t evt)
1801 {
1802 struct lpfc_iocbq *cmdiocb, *rspiocb;
1803 IOCB_t *irsp;
1804
1805 cmdiocb = (struct lpfc_iocbq *) arg;
1806 rspiocb = cmdiocb->context_un.rsp_iocb;
1807
1808 irsp = &rspiocb->iocb;
1809 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1810 lpfc_drop_node(vport, ndlp);
1811 return NLP_STE_FREED_NODE;
1812 }
1813 return ndlp->nlp_state;
1814 }
1815
1816 static uint32_t
1817 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1818 struct lpfc_nodelist *ndlp,
1819 void *arg, uint32_t evt)
1820 {
1821 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1822 MAILBOX_t *mb = &pmb->mb;
1823
1824 if (!mb->mbxStatus)
1825 ndlp->nlp_rpi = mb->un.varWords[0];
1826 else {
1827 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
1828 lpfc_drop_node(vport, ndlp);
1829 return NLP_STE_FREED_NODE;
1830 }
1831 }
1832 return ndlp->nlp_state;
1833 }
1834
1835 static uint32_t
1836 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1837 void *arg, uint32_t evt)
1838 {
1839 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1840
1841 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1842 spin_lock_irq(shost->host_lock);
1843 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1844 spin_unlock_irq(shost->host_lock);
1845 return ndlp->nlp_state;
1846 }
1847 lpfc_drop_node(vport, ndlp);
1848 return NLP_STE_FREED_NODE;
1849 }
1850
1851 static uint32_t
1852 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1853 void *arg, uint32_t evt)
1854 {
1855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1856
1857 /* Don't do anything that will mess up processing of the
1858 * previous RSCN.
1859 */
1860 if (vport->fc_flag & FC_RSCN_DEFERRED)
1861 return ndlp->nlp_state;
1862
1863 spin_lock_irq(shost->host_lock);
1864 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1865 spin_unlock_irq(shost->host_lock);
1866 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1867 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1868 }
1869 return ndlp->nlp_state;
1870 }
1871
1872
1873 /* This next section defines the NPort Discovery State Machine */
1874
1875 /* There are 4 different double linked lists nodelist entries can reside on.
1876 * The plogi list and adisc list are used when Link Up discovery or RSCN
1877 * processing is needed. Each list holds the nodes that we will send PLOGI
1878 * or ADISC on. These lists will keep track of what nodes will be effected
1879 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1880 * The unmapped_list will contain all nodes that we have successfully logged
1881 * into at the Fibre Channel level. The mapped_list will contain all nodes
1882 * that are mapped FCP targets.
1883 */
1884 /*
1885 * The bind list is a list of undiscovered (potentially non-existent) nodes
1886 * that we have saved binding information on. This information is used when
1887 * nodes transition from the unmapped to the mapped list.
1888 */
1889 /* For UNUSED_NODE state, the node has just been allocated .
1890 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1891 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1892 * and put on the unmapped list. For ADISC processing, the node is taken off
1893 * the ADISC list and placed on either the mapped or unmapped list (depending
1894 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1895 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1896 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1897 * node, the node is taken off the unmapped list. The binding list is checked
1898 * for a valid binding, or a binding is automatically assigned. If binding
1899 * assignment is unsuccessful, the node is left on the unmapped list. If
1900 * binding assignment is successful, the associated binding list entry (if
1901 * any) is removed, and the node is placed on the mapped list.
1902 */
1903 /*
1904 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1905 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
1906 * expire, all effected nodes will receive a DEVICE_RM event.
1907 */
1908 /*
1909 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1910 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1911 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1912 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1913 * we will first process the ADISC list. 32 entries are processed initially and
1914 * ADISC is initited for each one. Completions / Events for each node are
1915 * funnelled thru the state machine. As each node finishes ADISC processing, it
1916 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1917 * waiting, and the ADISC list count is identically 0, then we are done. For
1918 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1919 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1920 * list. 32 entries are processed initially and PLOGI is initited for each one.
1921 * Completions / Events for each node are funnelled thru the state machine. As
1922 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1923 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1924 * indentically 0, then we are done. We have now completed discovery / RSCN
1925 * handling. Upon completion, ALL nodes should be on either the mapped or
1926 * unmapped lists.
1927 */
1928
1929 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1930 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
1931 /* Action routine Event Current State */
1932 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1933 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1934 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1935 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1936 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1937 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1938 lpfc_disc_illegal, /* CMPL_PLOGI */
1939 lpfc_disc_illegal, /* CMPL_PRLI */
1940 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1941 lpfc_disc_illegal, /* CMPL_ADISC */
1942 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1943 lpfc_device_rm_unused_node, /* DEVICE_RM */
1944 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1945
1946 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1947 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
1948 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
1949 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1950 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1951 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1952 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1953 lpfc_disc_illegal, /* CMPL_PRLI */
1954 lpfc_disc_illegal, /* CMPL_LOGO */
1955 lpfc_disc_illegal, /* CMPL_ADISC */
1956 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1957 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1958 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1959
1960 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1961 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1962 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1963 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1964 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1965 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1966 lpfc_disc_illegal, /* CMPL_PLOGI */
1967 lpfc_disc_illegal, /* CMPL_PRLI */
1968 lpfc_disc_illegal, /* CMPL_LOGO */
1969 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1970 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1971 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1972 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1973
1974 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1975 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1976 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1977 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1978 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1979 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1980 lpfc_disc_illegal, /* CMPL_PLOGI */
1981 lpfc_disc_illegal, /* CMPL_PRLI */
1982 lpfc_disc_illegal, /* CMPL_LOGO */
1983 lpfc_disc_illegal, /* CMPL_ADISC */
1984 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1985 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1986 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1987
1988 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1989 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1990 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1991 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1992 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1993 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1994 lpfc_disc_illegal, /* CMPL_PLOGI */
1995 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1996 lpfc_disc_illegal, /* CMPL_LOGO */
1997 lpfc_disc_illegal, /* CMPL_ADISC */
1998 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1999 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2000 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2001
2002 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2003 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2004 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2005 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2006 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2007 lpfc_rcv_prlo_unmap_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_unmap_node, /* DEVICE_RECOVERY */
2015
2016 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2017 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2018 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2019 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2020 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2021 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2022 lpfc_disc_illegal, /* CMPL_PLOGI */
2023 lpfc_disc_illegal, /* CMPL_PRLI */
2024 lpfc_disc_illegal, /* CMPL_LOGO */
2025 lpfc_disc_illegal, /* CMPL_ADISC */
2026 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2027 lpfc_disc_illegal, /* DEVICE_RM */
2028 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2029
2030 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2031 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2032 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2033 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2034 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2035 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2036 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2037 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2038 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2039 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2040 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2041 lpfc_device_rm_npr_node, /* DEVICE_RM */
2042 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2043 };
2044
2045 int
2046 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2047 void *arg, uint32_t evt)
2048 {
2049 struct lpfc_hba *phba = vport->phba;
2050 uint32_t cur_state, rc;
2051 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2052 uint32_t);
2053
2054 lpfc_nlp_get(ndlp);
2055 cur_state = ndlp->nlp_state;
2056
2057 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2058 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2059 "%d (%d):0211 DSM in event x%x on NPort x%x in "
2060 "state %d Data: x%x\n",
2061 phba->brd_no, vport->vpi,
2062 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2063
2064 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2065 "DSM in: evt:%d ste:%d did:x%x",
2066 evt, cur_state, ndlp->nlp_DID);
2067
2068 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2069 rc = (func) (vport, ndlp, arg, evt);
2070
2071 /* DSM out state <rc> on NPort <nlp_DID> */
2072 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2073 "%d (%d):0212 DSM out state %d on NPort x%x "
2074 "Data: x%x\n",
2075 phba->brd_no, vport->vpi,
2076 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2077
2078 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2079 "DSM out: ste:%d did:x%x flg:x%x",
2080 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2081
2082 lpfc_nlp_put(ndlp);
2083
2084 return rc;
2085 }
kernel source for telekom puls (alcatel/mediatek)