?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
added 2.6.29.6 aldebaran kernel
[nao-ulib.git] / kernel / 2.6.29.6-aldebaran-rt / drivers / scsi / lpfc / lpfc_nportdisc.c
blob8f548adae9cc5fc594d60f834df4264056bfd3af
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2008 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_nl.h"
34 #include "lpfc_disc.h"
35 #include "lpfc_scsi.h"
36 #include "lpfc.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_crtn.h"
39 #include "lpfc_vport.h"
40 #include "lpfc_debugfs.h"
41
42
43 /* Called to verify a rcv'ed ADISC was intended for us. */
44 static int
45 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
46 struct lpfc_name *nn, struct lpfc_name *pn)
47 {
48 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
49 * table entry for that node.
50 */
51 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
52 return 0;
53
54 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
55 return 0;
56
57 /* we match, return success */
58 return 1;
59 }
60
61 int
62 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
63 struct serv_parm * sp, uint32_t class)
64 {
65 volatile struct serv_parm *hsp = &vport->fc_sparam;
66 uint16_t hsp_value, ssp_value = 0;
67
68 /*
69 * The receive data field size and buffer-to-buffer receive data field
70 * size entries are 16 bits but are represented as two 8-bit fields in
71 * the driver data structure to account for rsvd bits and other control
72 * bits. Reconstruct and compare the fields as a 16-bit values before
73 * correcting the byte values.
74 */
75 if (sp->cls1.classValid) {
76 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
77 hsp->cls1.rcvDataSizeLsb;
78 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
79 sp->cls1.rcvDataSizeLsb;
80 if (!ssp_value)
81 goto bad_service_param;
82 if (ssp_value > hsp_value) {
83 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
84 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
85 }
86 } else if (class == CLASS1) {
87 goto bad_service_param;
88 }
89
90 if (sp->cls2.classValid) {
91 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
92 hsp->cls2.rcvDataSizeLsb;
93 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
94 sp->cls2.rcvDataSizeLsb;
95 if (!ssp_value)
96 goto bad_service_param;
97 if (ssp_value > hsp_value) {
98 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
99 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
100 }
101 } else if (class == CLASS2) {
102 goto bad_service_param;
103 }
104
105 if (sp->cls3.classValid) {
106 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
107 hsp->cls3.rcvDataSizeLsb;
108 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
109 sp->cls3.rcvDataSizeLsb;
110 if (!ssp_value)
111 goto bad_service_param;
112 if (ssp_value > hsp_value) {
113 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
114 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
115 }
116 } else if (class == CLASS3) {
117 goto bad_service_param;
118 }
119
120 /*
121 * Preserve the upper four bits of the MSB from the PLOGI response.
122 * These bits contain the Buffer-to-Buffer State Change Number
123 * from the target and need to be passed to the FW.
124 */
125 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
126 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
127 if (ssp_value > hsp_value) {
128 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
129 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
130 (hsp->cmn.bbRcvSizeMsb & 0x0F);
131 }
132
133 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
134 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
135 return 1;
136 bad_service_param:
137 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
138 "0207 Device %x "
139 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
140 "invalid service parameters. Ignoring device.\n",
141 ndlp->nlp_DID,
142 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
143 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
144 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
145 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
146 return 0;
147 }
148
149 static void *
150 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
151 struct lpfc_iocbq *rspiocb)
152 {
153 struct lpfc_dmabuf *pcmd, *prsp;
154 uint32_t *lp;
155 void *ptr = NULL;
156 IOCB_t *irsp;
157
158 irsp = &rspiocb->iocb;
159 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
160
161 /* For lpfc_els_abort, context2 could be zero'ed to delay
162 * freeing associated memory till after ABTS completes.
163 */
164 if (pcmd) {
165 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
166 list);
167 if (prsp) {
168 lp = (uint32_t *) prsp->virt;
169 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
170 }
171 } else {
172 /* Force ulpStatus error since we are returning NULL ptr */
173 if (!(irsp->ulpStatus)) {
174 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
175 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
176 }
177 ptr = NULL;
178 }
179 return ptr;
180 }
181
182
183 /*
184 * Free resources / clean up outstanding I/Os
185 * associated with a LPFC_NODELIST entry. This
186 * routine effectively results in a "software abort".
187 */
188 int
189 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
190 {
191 LIST_HEAD(completions);
192 struct lpfc_sli *psli = &phba->sli;
193 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
194 struct lpfc_iocbq *iocb, *next_iocb;
195 IOCB_t *cmd;
196
197 /* Abort outstanding I/O on NPort <nlp_DID> */
198 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
199 "0205 Abort outstanding I/O on NPort x%x "
200 "Data: x%x x%x x%x\n",
201 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
202 ndlp->nlp_rpi);
203
204 lpfc_fabric_abort_nport(ndlp);
205
206 /* First check the txq */
207 spin_lock_irq(&phba->hbalock);
208 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
209 /* Check to see if iocb matches the nport we are looking for */
210 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
211 /* It matches, so deque and call compl with anp error */
212 list_move_tail(&iocb->list, &completions);
213 pring->txq_cnt--;
214 }
215 }
216
217 /* Next check the txcmplq */
218 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
219 /* Check to see if iocb matches the nport we are looking for */
220 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
221 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
222 }
223 }
224 spin_unlock_irq(&phba->hbalock);
225
226 while (!list_empty(&completions)) {
227 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
228 cmd = &iocb->iocb;
229 list_del_init(&iocb->list);
230
231 if (!iocb->iocb_cmpl)
232 lpfc_sli_release_iocbq(phba, iocb);
233 else {
234 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
235 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
236 (iocb->iocb_cmpl) (phba, iocb, iocb);
237 }
238 }
239 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
240 return 0;
241 }
242
243 static int
244 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
245 struct lpfc_iocbq *cmdiocb)
246 {
247 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
248 struct lpfc_hba *phba = vport->phba;
249 struct lpfc_dmabuf *pcmd;
250 uint32_t *lp;
251 IOCB_t *icmd;
252 struct serv_parm *sp;
253 LPFC_MBOXQ_t *mbox;
254 struct ls_rjt stat;
255 int rc;
256
257 memset(&stat, 0, sizeof (struct ls_rjt));
258 if (vport->port_state <= LPFC_FLOGI) {
259 /* Before responding to PLOGI, check for pt2pt mode.
260 * If we are pt2pt, with an outstanding FLOGI, abort
261 * the FLOGI and resend it first.
262 */
263 if (vport->fc_flag & FC_PT2PT) {
264 lpfc_els_abort_flogi(phba);
265 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
266 /* If the other side is supposed to initiate
267 * the PLOGI anyway, just ACC it now and
268 * move on with discovery.
269 */
270 phba->fc_edtov = FF_DEF_EDTOV;
271 phba->fc_ratov = FF_DEF_RATOV;
272 /* Start discovery - this should just do
273 CLEAR_LA */
274 lpfc_disc_start(vport);
275 } else
276 lpfc_initial_flogi(vport);
277 } else {
278 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
279 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
280 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
281 ndlp, NULL);
282 return 0;
283 }
284 }
285 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
286 lp = (uint32_t *) pcmd->virt;
287 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
288 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
289 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
290 "0140 PLOGI Reject: invalid nname\n");
291 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
292 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
293 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
294 NULL);
295 return 0;
296 }
297 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
298 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
299 "0141 PLOGI Reject: invalid pname\n");
300 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
301 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
302 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
303 NULL);
304 return 0;
305 }
306 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
307 /* Reject this request because invalid parameters */
308 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
309 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
311 NULL);
312 return 0;
313 }
314 icmd = &cmdiocb->iocb;
315
316 /* PLOGI chkparm OK */
317 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
318 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
319 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
320 ndlp->nlp_rpi);
321
322 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
323 ndlp->nlp_fcp_info |= CLASS2;
324 else
325 ndlp->nlp_fcp_info |= CLASS3;
326
327 ndlp->nlp_class_sup = 0;
328 if (sp->cls1.classValid)
329 ndlp->nlp_class_sup |= FC_COS_CLASS1;
330 if (sp->cls2.classValid)
331 ndlp->nlp_class_sup |= FC_COS_CLASS2;
332 if (sp->cls3.classValid)
333 ndlp->nlp_class_sup |= FC_COS_CLASS3;
334 if (sp->cls4.classValid)
335 ndlp->nlp_class_sup |= FC_COS_CLASS4;
336 ndlp->nlp_maxframe =
337 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
338
339 /* no need to reg_login if we are already in one of these states */
340 switch (ndlp->nlp_state) {
341 case NLP_STE_NPR_NODE:
342 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
343 break;
344 case NLP_STE_REG_LOGIN_ISSUE:
345 case NLP_STE_PRLI_ISSUE:
346 case NLP_STE_UNMAPPED_NODE:
347 case NLP_STE_MAPPED_NODE:
348 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
349 return 1;
350 }
351
352 if ((vport->fc_flag & FC_PT2PT) &&
353 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
354 /* rcv'ed PLOGI decides what our NPortId will be */
355 vport->fc_myDID = icmd->un.rcvels.parmRo;
356 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
357 if (mbox == NULL)
358 goto out;
359 lpfc_config_link(phba, mbox);
360 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
361 mbox->vport = vport;
362 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
363 if (rc == MBX_NOT_FINISHED) {
364 mempool_free(mbox, phba->mbox_mem_pool);
365 goto out;
366 }
367
368 lpfc_can_disctmo(vport);
369 }
370 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
371 if (!mbox)
372 goto out;
373
374 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
375 (uint8_t *) sp, mbox, 0);
376 if (rc) {
377 mempool_free(mbox, phba->mbox_mem_pool);
378 goto out;
379 }
380
381 /* ACC PLOGI rsp command needs to execute first,
382 * queue this mbox command to be processed later.
383 */
384 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
385 /*
386 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
387 * command issued in lpfc_cmpl_els_acc().
388 */
389 mbox->vport = vport;
390 spin_lock_irq(shost->host_lock);
391 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
392 spin_unlock_irq(shost->host_lock);
393
394 /*
395 * If there is an outstanding PLOGI issued, abort it before
396 * sending ACC rsp for received PLOGI. If pending plogi
397 * is not canceled here, the plogi will be rejected by
398 * remote port and will be retried. On a configuration with
399 * single discovery thread, this will cause a huge delay in
400 * discovery. Also this will cause multiple state machines
401 * running in parallel for this node.
402 */
403 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
404 /* software abort outstanding PLOGI */
405 lpfc_els_abort(phba, ndlp);
406 }
407
408 if ((vport->port_type == LPFC_NPIV_PORT &&
409 vport->cfg_restrict_login)) {
410
411 /* In order to preserve RPIs, we want to cleanup
412 * the default RPI the firmware created to rcv
413 * this ELS request. The only way to do this is
414 * to register, then unregister the RPI.
415 */
416 spin_lock_irq(shost->host_lock);
417 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
418 spin_unlock_irq(shost->host_lock);
419 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
420 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
421 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
422 ndlp, mbox);
423 return 1;
424 }
425 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
426 return 1;
427 out:
428 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
429 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
430 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
431 return 0;
432 }
433
434 static int
435 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
436 struct lpfc_iocbq *cmdiocb)
437 {
438 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
439 struct lpfc_dmabuf *pcmd;
440 struct serv_parm *sp;
441 struct lpfc_name *pnn, *ppn;
442 struct ls_rjt stat;
443 ADISC *ap;
444 IOCB_t *icmd;
445 uint32_t *lp;
446 uint32_t cmd;
447
448 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
449 lp = (uint32_t *) pcmd->virt;
450
451 cmd = *lp++;
452 if (cmd == ELS_CMD_ADISC) {
453 ap = (ADISC *) lp;
454 pnn = (struct lpfc_name *) & ap->nodeName;
455 ppn = (struct lpfc_name *) & ap->portName;
456 } else {
457 sp = (struct serv_parm *) lp;
458 pnn = (struct lpfc_name *) & sp->nodeName;
459 ppn = (struct lpfc_name *) & sp->portName;
460 }
461
462 icmd = &cmdiocb->iocb;
463 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
464 if (cmd == ELS_CMD_ADISC) {
465 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
466 } else {
467 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
468 NULL);
469 }
470 return 1;
471 }
472 /* Reject this request because invalid parameters */
473 stat.un.b.lsRjtRsvd0 = 0;
474 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
475 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
476 stat.un.b.vendorUnique = 0;
477 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
478
479 /* 1 sec timeout */
480 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
481
482 spin_lock_irq(shost->host_lock);
483 ndlp->nlp_flag |= NLP_DELAY_TMO;
484 spin_unlock_irq(shost->host_lock);
485 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
486 ndlp->nlp_prev_state = ndlp->nlp_state;
487 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
488 return 0;
489 }
490
491 static int
492 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
493 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
494 {
495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
496
497 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
498 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
499 * PLOGIs during LOGO storms from a device.
500 */
501 spin_lock_irq(shost->host_lock);
502 ndlp->nlp_flag |= NLP_LOGO_ACC;
503 spin_unlock_irq(shost->host_lock);
504 if (els_cmd == ELS_CMD_PRLO)
505 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
506 else
507 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
508
509 if ((!(ndlp->nlp_type & NLP_FABRIC) &&
510 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
511 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
512 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
513 /* Only try to re-login if this is NOT a Fabric Node */
514 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
515 spin_lock_irq(shost->host_lock);
516 ndlp->nlp_flag |= NLP_DELAY_TMO;
517 spin_unlock_irq(shost->host_lock);
518
519 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
520 }
521 ndlp->nlp_prev_state = ndlp->nlp_state;
522 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
523
524 spin_lock_irq(shost->host_lock);
525 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
526 spin_unlock_irq(shost->host_lock);
527 /* The driver has to wait until the ACC completes before it continues
528 * processing the LOGO. The action will resume in
529 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
530 * unreg_login, the driver waits so the ACC does not get aborted.
531 */
532 return 0;
533 }
534
535 static void
536 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
537 struct lpfc_iocbq *cmdiocb)
538 {
539 struct lpfc_dmabuf *pcmd;
540 uint32_t *lp;
541 PRLI *npr;
542 struct fc_rport *rport = ndlp->rport;
543 u32 roles;
544
545 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
546 lp = (uint32_t *) pcmd->virt;
547 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
548
549 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
550 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
551 if (npr->prliType == PRLI_FCP_TYPE) {
552 if (npr->initiatorFunc)
553 ndlp->nlp_type |= NLP_FCP_INITIATOR;
554 if (npr->targetFunc)
555 ndlp->nlp_type |= NLP_FCP_TARGET;
556 if (npr->Retry)
557 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
558 }
559 if (rport) {
560 /* We need to update the rport role values */
561 roles = FC_RPORT_ROLE_UNKNOWN;
562 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
563 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
564 if (ndlp->nlp_type & NLP_FCP_TARGET)
565 roles |= FC_RPORT_ROLE_FCP_TARGET;
566
567 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
568 "rport rolechg: role:x%x did:x%x flg:x%x",
569 roles, ndlp->nlp_DID, ndlp->nlp_flag);
570
571 fc_remote_port_rolechg(rport, roles);
572 }
573 }
574
575 static uint32_t
576 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
577 {
578 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
579
580 if (!ndlp->nlp_rpi) {
581 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
582 return 0;
583 }
584
585 if (!(vport->fc_flag & FC_PT2PT)) {
586 /* Check config parameter use-adisc or FCP-2 */
587 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
588 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
589 spin_lock_irq(shost->host_lock);
590 ndlp->nlp_flag |= NLP_NPR_ADISC;
591 spin_unlock_irq(shost->host_lock);
592 return 1;
593 }
594 }
595 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
596 lpfc_unreg_rpi(vport, ndlp);
597 return 0;
598 }
599
600 static uint32_t
601 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
602 void *arg, uint32_t evt)
603 {
604 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
605 "0271 Illegal State Transition: node x%x "
606 "event x%x, state x%x Data: x%x x%x\n",
607 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
608 ndlp->nlp_flag);
609 return ndlp->nlp_state;
610 }
611
612 static uint32_t
613 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
614 void *arg, uint32_t evt)
615 {
616 /* This transition is only legal if we previously
617 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
618 * working on the same NPortID, do nothing for this thread
619 * to stop it.
620 */
621 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
622 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
623 "0272 Illegal State Transition: node x%x "
624 "event x%x, state x%x Data: x%x x%x\n",
625 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
626 ndlp->nlp_flag);
627 }
628 return ndlp->nlp_state;
629 }
630
631 /* Start of Discovery State Machine routines */
632
633 static uint32_t
634 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
635 void *arg, uint32_t evt)
636 {
637 struct lpfc_iocbq *cmdiocb;
638
639 cmdiocb = (struct lpfc_iocbq *) arg;
640
641 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
642 return ndlp->nlp_state;
643 }
644 return NLP_STE_FREED_NODE;
645 }
646
647 static uint32_t
648 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
649 void *arg, uint32_t evt)
650 {
651 lpfc_issue_els_logo(vport, ndlp, 0);
652 return ndlp->nlp_state;
653 }
654
655 static uint32_t
656 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
657 void *arg, uint32_t evt)
658 {
659 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
660 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
661
662 spin_lock_irq(shost->host_lock);
663 ndlp->nlp_flag |= NLP_LOGO_ACC;
664 spin_unlock_irq(shost->host_lock);
665 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
666
667 return ndlp->nlp_state;
668 }
669
670 static uint32_t
671 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
672 void *arg, uint32_t evt)
673 {
674 return NLP_STE_FREED_NODE;
675 }
676
677 static uint32_t
678 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
679 void *arg, uint32_t evt)
680 {
681 return NLP_STE_FREED_NODE;
682 }
683
684 static uint32_t
685 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
686 void *arg, uint32_t evt)
687 {
688 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
689 struct lpfc_hba *phba = vport->phba;
690 struct lpfc_iocbq *cmdiocb = arg;
691 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
692 uint32_t *lp = (uint32_t *) pcmd->virt;
693 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
694 struct ls_rjt stat;
695 int port_cmp;
696
697 memset(&stat, 0, sizeof (struct ls_rjt));
698
699 /* For a PLOGI, we only accept if our portname is less
700 * than the remote portname.
701 */
702 phba->fc_stat.elsLogiCol++;
703 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
704 sizeof(struct lpfc_name));
705
706 if (port_cmp >= 0) {
707 /* Reject this request because the remote node will accept
708 ours */
709 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
710 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
711 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
712 NULL);
713 } else {
714 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
715 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
716 (vport->num_disc_nodes)) {
717 spin_lock_irq(shost->host_lock);
718 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
719 spin_unlock_irq(shost->host_lock);
720 /* Check if there are more PLOGIs to be sent */
721 lpfc_more_plogi(vport);
722 if (vport->num_disc_nodes == 0) {
723 spin_lock_irq(shost->host_lock);
724 vport->fc_flag &= ~FC_NDISC_ACTIVE;
725 spin_unlock_irq(shost->host_lock);
726 lpfc_can_disctmo(vport);
727 lpfc_end_rscn(vport);
728 }
729 }
730 } /* If our portname was less */
731
732 return ndlp->nlp_state;
733 }
734
735 static uint32_t
736 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
737 void *arg, uint32_t evt)
738 {
739 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
740 struct ls_rjt stat;
741
742 memset(&stat, 0, sizeof (struct ls_rjt));
743 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
744 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
745 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
746 return ndlp->nlp_state;
747 }
748
749 static uint32_t
750 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
751 void *arg, uint32_t evt)
752 {
753 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
754
755 /* software abort outstanding PLOGI */
756 lpfc_els_abort(vport->phba, ndlp);
757
758 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
759 return ndlp->nlp_state;
760 }
761
762 static uint32_t
763 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
764 void *arg, uint32_t evt)
765 {
766 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
767 struct lpfc_hba *phba = vport->phba;
768 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
769
770 /* software abort outstanding PLOGI */
771 lpfc_els_abort(phba, ndlp);
772
773 if (evt == NLP_EVT_RCV_LOGO) {
774 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
775 } else {
776 lpfc_issue_els_logo(vport, ndlp, 0);
777 }
778
779 /* Put ndlp in npr state set plogi timer for 1 sec */
780 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
781 spin_lock_irq(shost->host_lock);
782 ndlp->nlp_flag |= NLP_DELAY_TMO;
783 spin_unlock_irq(shost->host_lock);
784 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
785 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
786 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
787
788 return ndlp->nlp_state;
789 }
790
791 static uint32_t
792 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
793 struct lpfc_nodelist *ndlp,
794 void *arg,
795 uint32_t evt)
796 {
797 struct lpfc_hba *phba = vport->phba;
798 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
799 struct lpfc_iocbq *cmdiocb, *rspiocb;
800 struct lpfc_dmabuf *pcmd, *prsp, *mp;
801 uint32_t *lp;
802 IOCB_t *irsp;
803 struct serv_parm *sp;
804 LPFC_MBOXQ_t *mbox;
805
806 cmdiocb = (struct lpfc_iocbq *) arg;
807 rspiocb = cmdiocb->context_un.rsp_iocb;
808
809 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
810 /* Recovery from PLOGI collision logic */
811 return ndlp->nlp_state;
812 }
813
814 irsp = &rspiocb->iocb;
815
816 if (irsp->ulpStatus)
817 goto out;
818
819 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
820
821 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
822
823 lp = (uint32_t *) prsp->virt;
824 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
825
826 /* Some switches have FDMI servers returning 0 for WWN */
827 if ((ndlp->nlp_DID != FDMI_DID) &&
828 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
829 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
830 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
831 "0142 PLOGI RSP: Invalid WWN.\n");
832 goto out;
833 }
834 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
835 goto out;
836 /* PLOGI chkparm OK */
837 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
838 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
839 ndlp->nlp_DID, ndlp->nlp_state,
840 ndlp->nlp_flag, ndlp->nlp_rpi);
841 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
842 ndlp->nlp_fcp_info |= CLASS2;
843 else
844 ndlp->nlp_fcp_info |= CLASS3;
845
846 ndlp->nlp_class_sup = 0;
847 if (sp->cls1.classValid)
848 ndlp->nlp_class_sup |= FC_COS_CLASS1;
849 if (sp->cls2.classValid)
850 ndlp->nlp_class_sup |= FC_COS_CLASS2;
851 if (sp->cls3.classValid)
852 ndlp->nlp_class_sup |= FC_COS_CLASS3;
853 if (sp->cls4.classValid)
854 ndlp->nlp_class_sup |= FC_COS_CLASS4;
855 ndlp->nlp_maxframe =
856 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
857
858 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
859 if (!mbox) {
860 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
861 "0133 PLOGI: no memory for reg_login "
862 "Data: x%x x%x x%x x%x\n",
863 ndlp->nlp_DID, ndlp->nlp_state,
864 ndlp->nlp_flag, ndlp->nlp_rpi);
865 goto out;
866 }
867
868 lpfc_unreg_rpi(vport, ndlp);
869
870 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
871 (uint8_t *) sp, mbox, 0) == 0) {
872 switch (ndlp->nlp_DID) {
873 case NameServer_DID:
874 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
875 break;
876 case FDMI_DID:
877 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
878 break;
879 default:
880 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
881 }
882 mbox->context2 = lpfc_nlp_get(ndlp);
883 mbox->vport = vport;
884 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
885 != MBX_NOT_FINISHED) {
886 lpfc_nlp_set_state(vport, ndlp,
887 NLP_STE_REG_LOGIN_ISSUE);
888 return ndlp->nlp_state;
889 }
890 /* decrement node reference count to the failed mbox
891 * command
892 */
893 lpfc_nlp_put(ndlp);
894 mp = (struct lpfc_dmabuf *) mbox->context1;
895 lpfc_mbuf_free(phba, mp->virt, mp->phys);
896 kfree(mp);
897 mempool_free(mbox, phba->mbox_mem_pool);
898
899 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
900 "0134 PLOGI: cannot issue reg_login "
901 "Data: x%x x%x x%x x%x\n",
902 ndlp->nlp_DID, ndlp->nlp_state,
903 ndlp->nlp_flag, ndlp->nlp_rpi);
904 } else {
905 mempool_free(mbox, phba->mbox_mem_pool);
906
907 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
908 "0135 PLOGI: cannot format reg_login "
909 "Data: x%x x%x x%x x%x\n",
910 ndlp->nlp_DID, ndlp->nlp_state,
911 ndlp->nlp_flag, ndlp->nlp_rpi);
912 }
913
914
915 out:
916 if (ndlp->nlp_DID == NameServer_DID) {
917 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
918 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
919 "0261 Cannot Register NameServer login\n");
920 }
921
922 spin_lock_irq(shost->host_lock);
923 ndlp->nlp_flag |= NLP_DEFER_RM;
924 spin_unlock_irq(shost->host_lock);
925 return NLP_STE_FREED_NODE;
926 }
927
928 static uint32_t
929 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
930 void *arg, uint32_t evt)
931 {
932 return ndlp->nlp_state;
933 }
934
935 static uint32_t
936 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
937 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
938 {
939 return ndlp->nlp_state;
940 }
941
942 static uint32_t
943 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
944 void *arg, uint32_t evt)
945 {
946 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
947
948 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
949 spin_lock_irq(shost->host_lock);
950 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
951 spin_unlock_irq(shost->host_lock);
952 return ndlp->nlp_state;
953 } else {
954 /* software abort outstanding PLOGI */
955 lpfc_els_abort(vport->phba, ndlp);
956
957 lpfc_drop_node(vport, ndlp);
958 return NLP_STE_FREED_NODE;
959 }
960 }
961
962 static uint32_t
963 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
964 struct lpfc_nodelist *ndlp,
965 void *arg,
966 uint32_t evt)
967 {
968 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
969 struct lpfc_hba *phba = vport->phba;
970
971 /* Don't do anything that will mess up processing of the
972 * previous RSCN.
973 */
974 if (vport->fc_flag & FC_RSCN_DEFERRED)
975 return ndlp->nlp_state;
976
977 /* software abort outstanding PLOGI */
978 lpfc_els_abort(phba, ndlp);
979
980 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
981 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
982 spin_lock_irq(shost->host_lock);
983 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
984 spin_unlock_irq(shost->host_lock);
985
986 return ndlp->nlp_state;
987 }
988
989 static uint32_t
990 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
991 void *arg, uint32_t evt)
992 {
993 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
994 struct lpfc_hba *phba = vport->phba;
995 struct lpfc_iocbq *cmdiocb;
996
997 /* software abort outstanding ADISC */
998 lpfc_els_abort(phba, ndlp);
999
1000 cmdiocb = (struct lpfc_iocbq *) arg;
1001
1002 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1003 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1004 spin_lock_irq(shost->host_lock);
1005 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1006 spin_unlock_irq(shost->host_lock);
1007 if (vport->num_disc_nodes)
1008 lpfc_more_adisc(vport);
1009 }
1010 return ndlp->nlp_state;
1011 }
1012 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1013 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1014 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1015
1016 return ndlp->nlp_state;
1017 }
1018
1019 static uint32_t
1020 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1021 void *arg, uint32_t evt)
1022 {
1023 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1024
1025 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1026 return ndlp->nlp_state;
1027 }
1028
1029 static uint32_t
1030 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1031 void *arg, uint32_t evt)
1032 {
1033 struct lpfc_hba *phba = vport->phba;
1034 struct lpfc_iocbq *cmdiocb;
1035
1036 cmdiocb = (struct lpfc_iocbq *) arg;
1037
1038 /* software abort outstanding ADISC */
1039 lpfc_els_abort(phba, ndlp);
1040
1041 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1042 return ndlp->nlp_state;
1043 }
1044
1045 static uint32_t
1046 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1047 struct lpfc_nodelist *ndlp,
1048 void *arg, uint32_t evt)
1049 {
1050 struct lpfc_iocbq *cmdiocb;
1051
1052 cmdiocb = (struct lpfc_iocbq *) arg;
1053
1054 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1055 return ndlp->nlp_state;
1056 }
1057
1058 static uint32_t
1059 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1060 void *arg, uint32_t evt)
1061 {
1062 struct lpfc_iocbq *cmdiocb;
1063
1064 cmdiocb = (struct lpfc_iocbq *) arg;
1065
1066 /* Treat like rcv logo */
1067 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1068 return ndlp->nlp_state;
1069 }
1070
1071 static uint32_t
1072 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1073 struct lpfc_nodelist *ndlp,
1074 void *arg, uint32_t evt)
1075 {
1076 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1077 struct lpfc_hba *phba = vport->phba;
1078 struct lpfc_iocbq *cmdiocb, *rspiocb;
1079 IOCB_t *irsp;
1080 ADISC *ap;
1081
1082 cmdiocb = (struct lpfc_iocbq *) arg;
1083 rspiocb = cmdiocb->context_un.rsp_iocb;
1084
1085 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1086 irsp = &rspiocb->iocb;
1087
1088 if ((irsp->ulpStatus) ||
1089 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1090 /* 1 sec timeout */
1091 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1092 spin_lock_irq(shost->host_lock);
1093 ndlp->nlp_flag |= NLP_DELAY_TMO;
1094 spin_unlock_irq(shost->host_lock);
1095 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1096
1097 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1098 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1099
1100 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1101 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1102 lpfc_unreg_rpi(vport, ndlp);
1103 return ndlp->nlp_state;
1104 }
1105
1106 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1107 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1108 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1109 } else {
1110 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1111 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1112 }
1113 return ndlp->nlp_state;
1114 }
1115
1116 static uint32_t
1117 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1118 void *arg, uint32_t evt)
1119 {
1120 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1121
1122 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1123 spin_lock_irq(shost->host_lock);
1124 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1125 spin_unlock_irq(shost->host_lock);
1126 return ndlp->nlp_state;
1127 } else {
1128 /* software abort outstanding ADISC */
1129 lpfc_els_abort(vport->phba, ndlp);
1130
1131 lpfc_drop_node(vport, ndlp);
1132 return NLP_STE_FREED_NODE;
1133 }
1134 }
1135
1136 static uint32_t
1137 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1138 struct lpfc_nodelist *ndlp,
1139 void *arg,
1140 uint32_t evt)
1141 {
1142 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1143 struct lpfc_hba *phba = vport->phba;
1144
1145 /* Don't do anything that will mess up processing of the
1146 * previous RSCN.
1147 */
1148 if (vport->fc_flag & FC_RSCN_DEFERRED)
1149 return ndlp->nlp_state;
1150
1151 /* software abort outstanding ADISC */
1152 lpfc_els_abort(phba, ndlp);
1153
1154 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1155 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1156 spin_lock_irq(shost->host_lock);
1157 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1158 spin_unlock_irq(shost->host_lock);
1159 lpfc_disc_set_adisc(vport, ndlp);
1160 return ndlp->nlp_state;
1161 }
1162
1163 static uint32_t
1164 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1165 struct lpfc_nodelist *ndlp,
1166 void *arg,
1167 uint32_t evt)
1168 {
1169 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1170
1171 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1172 return ndlp->nlp_state;
1173 }
1174
1175 static uint32_t
1176 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1177 struct lpfc_nodelist *ndlp,
1178 void *arg,
1179 uint32_t evt)
1180 {
1181 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1182
1183 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1184 return ndlp->nlp_state;
1185 }
1186
1187 static uint32_t
1188 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1189 struct lpfc_nodelist *ndlp,
1190 void *arg,
1191 uint32_t evt)
1192 {
1193 struct lpfc_hba *phba = vport->phba;
1194 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1195 LPFC_MBOXQ_t *mb;
1196 LPFC_MBOXQ_t *nextmb;
1197 struct lpfc_dmabuf *mp;
1198
1199 cmdiocb = (struct lpfc_iocbq *) arg;
1200
1201 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1202 if ((mb = phba->sli.mbox_active)) {
1203 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1204 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1205 lpfc_nlp_put(ndlp);
1206 mb->context2 = NULL;
1207 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1208 }
1209 }
1210
1211 spin_lock_irq(&phba->hbalock);
1212 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1213 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1214 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1215 mp = (struct lpfc_dmabuf *) (mb->context1);
1216 if (mp) {
1217 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1218 kfree(mp);
1219 }
1220 lpfc_nlp_put(ndlp);
1221 list_del(&mb->list);
1222 mempool_free(mb, phba->mbox_mem_pool);
1223 }
1224 }
1225 spin_unlock_irq(&phba->hbalock);
1226
1227 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1228 return ndlp->nlp_state;
1229 }
1230
1231 static uint32_t
1232 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1233 struct lpfc_nodelist *ndlp,
1234 void *arg,
1235 uint32_t evt)
1236 {
1237 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1238
1239 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1240 return ndlp->nlp_state;
1241 }
1242
1243 static uint32_t
1244 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1245 struct lpfc_nodelist *ndlp,
1246 void *arg,
1247 uint32_t evt)
1248 {
1249 struct lpfc_iocbq *cmdiocb;
1250
1251 cmdiocb = (struct lpfc_iocbq *) arg;
1252 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1253 return ndlp->nlp_state;
1254 }
1255
1256 static uint32_t
1257 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1258 struct lpfc_nodelist *ndlp,
1259 void *arg,
1260 uint32_t evt)
1261 {
1262 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1263 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1264 MAILBOX_t *mb = &pmb->mb;
1265 uint32_t did = mb->un.varWords[1];
1266
1267 if (mb->mbxStatus) {
1268 /* RegLogin failed */
1269 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1270 "0246 RegLogin failed Data: x%x x%x x%x\n",
1271 did, mb->mbxStatus, vport->port_state);
1272 /*
1273 * If RegLogin failed due to lack of HBA resources do not
1274 * retry discovery.
1275 */
1276 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1277 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1278 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1279 return ndlp->nlp_state;
1280 }
1281
1282 /* Put ndlp in npr state set plogi timer for 1 sec */
1283 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1284 spin_lock_irq(shost->host_lock);
1285 ndlp->nlp_flag |= NLP_DELAY_TMO;
1286 spin_unlock_irq(shost->host_lock);
1287 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1288
1289 lpfc_issue_els_logo(vport, ndlp, 0);
1290 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1291 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1292 return ndlp->nlp_state;
1293 }
1294
1295 ndlp->nlp_rpi = mb->un.varWords[0];
1296
1297 /* Only if we are not a fabric nport do we issue PRLI */
1298 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1299 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1300 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1301 lpfc_issue_els_prli(vport, ndlp, 0);
1302 } else {
1303 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1304 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1305 }
1306 return ndlp->nlp_state;
1307 }
1308
1309 static uint32_t
1310 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1311 struct lpfc_nodelist *ndlp,
1312 void *arg,
1313 uint32_t evt)
1314 {
1315 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1316
1317 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1318 spin_lock_irq(shost->host_lock);
1319 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1320 spin_unlock_irq(shost->host_lock);
1321 return ndlp->nlp_state;
1322 } else {
1323 lpfc_drop_node(vport, ndlp);
1324 return NLP_STE_FREED_NODE;
1325 }
1326 }
1327
1328 static uint32_t
1329 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1330 struct lpfc_nodelist *ndlp,
1331 void *arg,
1332 uint32_t evt)
1333 {
1334 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1335
1336 /* Don't do anything that will mess up processing of the
1337 * previous RSCN.
1338 */
1339 if (vport->fc_flag & FC_RSCN_DEFERRED)
1340 return ndlp->nlp_state;
1341
1342 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1343 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1344 spin_lock_irq(shost->host_lock);
1345 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1346 spin_unlock_irq(shost->host_lock);
1347 lpfc_disc_set_adisc(vport, ndlp);
1348 return ndlp->nlp_state;
1349 }
1350
1351 static uint32_t
1352 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1353 void *arg, uint32_t evt)
1354 {
1355 struct lpfc_iocbq *cmdiocb;
1356
1357 cmdiocb = (struct lpfc_iocbq *) arg;
1358
1359 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1360 return ndlp->nlp_state;
1361 }
1362
1363 static uint32_t
1364 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1365 void *arg, uint32_t evt)
1366 {
1367 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1368
1369 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1370 return ndlp->nlp_state;
1371 }
1372
1373 static uint32_t
1374 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1375 void *arg, uint32_t evt)
1376 {
1377 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1378
1379 /* Software abort outstanding PRLI before sending acc */
1380 lpfc_els_abort(vport->phba, ndlp);
1381
1382 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1383 return ndlp->nlp_state;
1384 }
1385
1386 static uint32_t
1387 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1388 void *arg, uint32_t evt)
1389 {
1390 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1391
1392 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1393 return ndlp->nlp_state;
1394 }
1395
1396 /* This routine is envoked when we rcv a PRLO request from a nport
1397 * we are logged into. We should send back a PRLO rsp setting the
1398 * appropriate bits.
1399 * NEXT STATE = PRLI_ISSUE
1400 */
1401 static uint32_t
1402 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1403 void *arg, uint32_t evt)
1404 {
1405 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1406
1407 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1408 return ndlp->nlp_state;
1409 }
1410
1411 static uint32_t
1412 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1413 void *arg, uint32_t evt)
1414 {
1415 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1416 struct lpfc_iocbq *cmdiocb, *rspiocb;
1417 struct lpfc_hba *phba = vport->phba;
1418 IOCB_t *irsp;
1419 PRLI *npr;
1420
1421 cmdiocb = (struct lpfc_iocbq *) arg;
1422 rspiocb = cmdiocb->context_un.rsp_iocb;
1423 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1424
1425 irsp = &rspiocb->iocb;
1426 if (irsp->ulpStatus) {
1427 if ((vport->port_type == LPFC_NPIV_PORT) &&
1428 vport->cfg_restrict_login) {
1429 goto out;
1430 }
1431 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1432 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1433 return ndlp->nlp_state;
1434 }
1435
1436 /* Check out PRLI rsp */
1437 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1438 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1439 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1440 (npr->prliType == PRLI_FCP_TYPE)) {
1441 if (npr->initiatorFunc)
1442 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1443 if (npr->targetFunc)
1444 ndlp->nlp_type |= NLP_FCP_TARGET;
1445 if (npr->Retry)
1446 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1447 }
1448 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1449 (vport->port_type == LPFC_NPIV_PORT) &&
1450 vport->cfg_restrict_login) {
1451 out:
1452 spin_lock_irq(shost->host_lock);
1453 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1454 spin_unlock_irq(shost->host_lock);
1455 lpfc_issue_els_logo(vport, ndlp, 0);
1456
1457 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1458 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1459 return ndlp->nlp_state;
1460 }
1461
1462 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1463 if (ndlp->nlp_type & NLP_FCP_TARGET)
1464 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1465 else
1466 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1467 return ndlp->nlp_state;
1468 }
1469
1470 /*! lpfc_device_rm_prli_issue
1471 *
1472 * \pre
1473 * \post
1474 * \param phba
1475 * \param ndlp
1476 * \param arg
1477 * \param evt
1478 * \return uint32_t
1479 *
1480 * \b Description:
1481 * This routine is envoked when we a request to remove a nport we are in the
1482 * process of PRLIing. We should software abort outstanding prli, unreg
1483 * login, send a logout. We will change node state to UNUSED_NODE, put it
1484 * on plogi list so it can be freed when LOGO completes.
1485 *
1486 */
1487
1488 static uint32_t
1489 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1490 void *arg, uint32_t evt)
1491 {
1492 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1493
1494 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1495 spin_lock_irq(shost->host_lock);
1496 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1497 spin_unlock_irq(shost->host_lock);
1498 return ndlp->nlp_state;
1499 } else {
1500 /* software abort outstanding PLOGI */
1501 lpfc_els_abort(vport->phba, ndlp);
1502
1503 lpfc_drop_node(vport, ndlp);
1504 return NLP_STE_FREED_NODE;
1505 }
1506 }
1507
1508
1509 /*! lpfc_device_recov_prli_issue
1510 *
1511 * \pre
1512 * \post
1513 * \param phba
1514 * \param ndlp
1515 * \param arg
1516 * \param evt
1517 * \return uint32_t
1518 *
1519 * \b Description:
1520 * The routine is envoked when the state of a device is unknown, like
1521 * during a link down. We should remove the nodelist entry from the
1522 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1523 * outstanding PRLI command, then free the node entry.
1524 */
1525 static uint32_t
1526 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1527 struct lpfc_nodelist *ndlp,
1528 void *arg,
1529 uint32_t evt)
1530 {
1531 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1532 struct lpfc_hba *phba = vport->phba;
1533
1534 /* Don't do anything that will mess up processing of the
1535 * previous RSCN.
1536 */
1537 if (vport->fc_flag & FC_RSCN_DEFERRED)
1538 return ndlp->nlp_state;
1539
1540 /* software abort outstanding PRLI */
1541 lpfc_els_abort(phba, ndlp);
1542
1543 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
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 return ndlp->nlp_state;
1550 }
1551
1552 static uint32_t
1553 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1554 void *arg, uint32_t evt)
1555 {
1556 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1557
1558 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1559 return ndlp->nlp_state;
1560 }
1561
1562 static uint32_t
1563 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1564 void *arg, uint32_t evt)
1565 {
1566 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1567
1568 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1569 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1570 return ndlp->nlp_state;
1571 }
1572
1573 static uint32_t
1574 lpfc_rcv_logo_unmap_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_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1585 void *arg, uint32_t evt)
1586 {
1587 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1588
1589 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1590 return ndlp->nlp_state;
1591 }
1592
1593 static uint32_t
1594 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1595 void *arg, uint32_t evt)
1596 {
1597 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1598
1599 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1600 return ndlp->nlp_state;
1601 }
1602
1603 static uint32_t
1604 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1605 struct lpfc_nodelist *ndlp,
1606 void *arg,
1607 uint32_t evt)
1608 {
1609 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1610
1611 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1612 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1613 spin_lock_irq(shost->host_lock);
1614 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1615 spin_unlock_irq(shost->host_lock);
1616 lpfc_disc_set_adisc(vport, ndlp);
1617
1618 return ndlp->nlp_state;
1619 }
1620
1621 static uint32_t
1622 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1623 void *arg, uint32_t evt)
1624 {
1625 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1626
1627 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1628 return ndlp->nlp_state;
1629 }
1630
1631 static uint32_t
1632 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1633 void *arg, uint32_t evt)
1634 {
1635 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1636
1637 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1638 return ndlp->nlp_state;
1639 }
1640
1641 static uint32_t
1642 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1643 void *arg, uint32_t evt)
1644 {
1645 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1646
1647 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1648 return ndlp->nlp_state;
1649 }
1650
1651 static uint32_t
1652 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1653 struct lpfc_nodelist *ndlp,
1654 void *arg, uint32_t evt)
1655 {
1656 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1657
1658 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1659 return ndlp->nlp_state;
1660 }
1661
1662 static uint32_t
1663 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1664 void *arg, uint32_t evt)
1665 {
1666 struct lpfc_hba *phba = vport->phba;
1667 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1668
1669 /* flush the target */
1670 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1671 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
1672
1673 /* Treat like rcv logo */
1674 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1675 return ndlp->nlp_state;
1676 }
1677
1678 static uint32_t
1679 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1680 struct lpfc_nodelist *ndlp,
1681 void *arg,
1682 uint32_t evt)
1683 {
1684 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1685
1686 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1687 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1688 spin_lock_irq(shost->host_lock);
1689 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1690 spin_unlock_irq(shost->host_lock);
1691 lpfc_disc_set_adisc(vport, ndlp);
1692 return ndlp->nlp_state;
1693 }
1694
1695 static uint32_t
1696 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1697 void *arg, uint32_t evt)
1698 {
1699 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1700 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1701
1702 /* Ignore PLOGI if we have an outstanding LOGO */
1703 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
1704 return ndlp->nlp_state;
1705 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1706 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1707 spin_lock_irq(shost->host_lock);
1708 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
1709 spin_unlock_irq(shost->host_lock);
1710 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1711 /* send PLOGI immediately, move to PLOGI issue state */
1712 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1713 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1714 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1715 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1716 }
1717 }
1718 return ndlp->nlp_state;
1719 }
1720
1721 static uint32_t
1722 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1723 void *arg, uint32_t evt)
1724 {
1725 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1726 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1727 struct ls_rjt stat;
1728
1729 memset(&stat, 0, sizeof (struct ls_rjt));
1730 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1731 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1732 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1733
1734 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1735 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1736 spin_lock_irq(shost->host_lock);
1737 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1738 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1739 spin_unlock_irq(shost->host_lock);
1740 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1741 lpfc_issue_els_adisc(vport, ndlp, 0);
1742 } else {
1743 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1744 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1745 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1746 }
1747 }
1748 return ndlp->nlp_state;
1749 }
1750
1751 static uint32_t
1752 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1753 void *arg, uint32_t evt)
1754 {
1755 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1756
1757 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1758 return ndlp->nlp_state;
1759 }
1760
1761 static uint32_t
1762 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1763 void *arg, uint32_t evt)
1764 {
1765 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1766
1767 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1768 /*
1769 * Do not start discovery if discovery is about to start
1770 * or discovery in progress for this node. Starting discovery
1771 * here will affect the counting of discovery threads.
1772 */
1773 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1774 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1775 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1776 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1777 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1778 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1779 lpfc_issue_els_adisc(vport, ndlp, 0);
1780 } else {
1781 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1782 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1783 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1784 }
1785 }
1786 return ndlp->nlp_state;
1787 }
1788
1789 static uint32_t
1790 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1791 void *arg, uint32_t evt)
1792 {
1793 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1794 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1795
1796 spin_lock_irq(shost->host_lock);
1797 ndlp->nlp_flag |= NLP_LOGO_ACC;
1798 spin_unlock_irq(shost->host_lock);
1799
1800 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1801
1802 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
1803 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1804 spin_lock_irq(shost->host_lock);
1805 ndlp->nlp_flag |= NLP_DELAY_TMO;
1806 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1807 spin_unlock_irq(shost->host_lock);
1808 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1809 } else {
1810 spin_lock_irq(shost->host_lock);
1811 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1812 spin_unlock_irq(shost->host_lock);
1813 }
1814 return ndlp->nlp_state;
1815 }
1816
1817 static uint32_t
1818 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1819 void *arg, uint32_t evt)
1820 {
1821 struct lpfc_iocbq *cmdiocb, *rspiocb;
1822 IOCB_t *irsp;
1823
1824 cmdiocb = (struct lpfc_iocbq *) arg;
1825 rspiocb = cmdiocb->context_un.rsp_iocb;
1826
1827 irsp = &rspiocb->iocb;
1828 if (irsp->ulpStatus) {
1829 ndlp->nlp_flag |= NLP_DEFER_RM;
1830 return NLP_STE_FREED_NODE;
1831 }
1832 return ndlp->nlp_state;
1833 }
1834
1835 static uint32_t
1836 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1837 void *arg, uint32_t evt)
1838 {
1839 struct lpfc_iocbq *cmdiocb, *rspiocb;
1840 IOCB_t *irsp;
1841
1842 cmdiocb = (struct lpfc_iocbq *) arg;
1843 rspiocb = cmdiocb->context_un.rsp_iocb;
1844
1845 irsp = &rspiocb->iocb;
1846 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1847 lpfc_drop_node(vport, ndlp);
1848 return NLP_STE_FREED_NODE;
1849 }
1850 return ndlp->nlp_state;
1851 }
1852
1853 static uint32_t
1854 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1855 void *arg, uint32_t evt)
1856 {
1857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1858 if (ndlp->nlp_DID == Fabric_DID) {
1859 spin_lock_irq(shost->host_lock);
1860 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1861 spin_unlock_irq(shost->host_lock);
1862 }
1863 lpfc_unreg_rpi(vport, ndlp);
1864 return ndlp->nlp_state;
1865 }
1866
1867 static uint32_t
1868 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1869 void *arg, uint32_t evt)
1870 {
1871 struct lpfc_iocbq *cmdiocb, *rspiocb;
1872 IOCB_t *irsp;
1873
1874 cmdiocb = (struct lpfc_iocbq *) arg;
1875 rspiocb = cmdiocb->context_un.rsp_iocb;
1876
1877 irsp = &rspiocb->iocb;
1878 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1879 lpfc_drop_node(vport, ndlp);
1880 return NLP_STE_FREED_NODE;
1881 }
1882 return ndlp->nlp_state;
1883 }
1884
1885 static uint32_t
1886 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1887 struct lpfc_nodelist *ndlp,
1888 void *arg, uint32_t evt)
1889 {
1890 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1891 MAILBOX_t *mb = &pmb->mb;
1892
1893 if (!mb->mbxStatus)
1894 ndlp->nlp_rpi = mb->un.varWords[0];
1895 else {
1896 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
1897 lpfc_drop_node(vport, ndlp);
1898 return NLP_STE_FREED_NODE;
1899 }
1900 }
1901 return ndlp->nlp_state;
1902 }
1903
1904 static uint32_t
1905 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1906 void *arg, uint32_t evt)
1907 {
1908 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1909
1910 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1911 spin_lock_irq(shost->host_lock);
1912 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1913 spin_unlock_irq(shost->host_lock);
1914 return ndlp->nlp_state;
1915 }
1916 lpfc_drop_node(vport, ndlp);
1917 return NLP_STE_FREED_NODE;
1918 }
1919
1920 static uint32_t
1921 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1922 void *arg, uint32_t evt)
1923 {
1924 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1925
1926 /* Don't do anything that will mess up processing of the
1927 * previous RSCN.
1928 */
1929 if (vport->fc_flag & FC_RSCN_DEFERRED)
1930 return ndlp->nlp_state;
1931
1932 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1933 spin_lock_irq(shost->host_lock);
1934 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1935 spin_unlock_irq(shost->host_lock);
1936 return ndlp->nlp_state;
1937 }
1938
1939
1940 /* This next section defines the NPort Discovery State Machine */
1941
1942 /* There are 4 different double linked lists nodelist entries can reside on.
1943 * The plogi list and adisc list are used when Link Up discovery or RSCN
1944 * processing is needed. Each list holds the nodes that we will send PLOGI
1945 * or ADISC on. These lists will keep track of what nodes will be effected
1946 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1947 * The unmapped_list will contain all nodes that we have successfully logged
1948 * into at the Fibre Channel level. The mapped_list will contain all nodes
1949 * that are mapped FCP targets.
1950 */
1951 /*
1952 * The bind list is a list of undiscovered (potentially non-existent) nodes
1953 * that we have saved binding information on. This information is used when
1954 * nodes transition from the unmapped to the mapped list.
1955 */
1956 /* For UNUSED_NODE state, the node has just been allocated .
1957 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1958 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1959 * and put on the unmapped list. For ADISC processing, the node is taken off
1960 * the ADISC list and placed on either the mapped or unmapped list (depending
1961 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1962 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1963 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1964 * node, the node is taken off the unmapped list. The binding list is checked
1965 * for a valid binding, or a binding is automatically assigned. If binding
1966 * assignment is unsuccessful, the node is left on the unmapped list. If
1967 * binding assignment is successful, the associated binding list entry (if
1968 * any) is removed, and the node is placed on the mapped list.
1969 */
1970 /*
1971 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1972 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
1973 * expire, all effected nodes will receive a DEVICE_RM event.
1974 */
1975 /*
1976 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1977 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1978 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1979 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1980 * we will first process the ADISC list. 32 entries are processed initially and
1981 * ADISC is initited for each one. Completions / Events for each node are
1982 * funnelled thru the state machine. As each node finishes ADISC processing, it
1983 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1984 * waiting, and the ADISC list count is identically 0, then we are done. For
1985 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1986 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1987 * list. 32 entries are processed initially and PLOGI is initited for each one.
1988 * Completions / Events for each node are funnelled thru the state machine. As
1989 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1990 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1991 * indentically 0, then we are done. We have now completed discovery / RSCN
1992 * handling. Upon completion, ALL nodes should be on either the mapped or
1993 * unmapped lists.
1994 */
1995
1996 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1997 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
1998 /* Action routine Event Current State */
1999 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2000 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2001 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2002 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2003 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2004 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2005 lpfc_disc_illegal, /* CMPL_PLOGI */
2006 lpfc_disc_illegal, /* CMPL_PRLI */
2007 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2008 lpfc_disc_illegal, /* CMPL_ADISC */
2009 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2010 lpfc_device_rm_unused_node, /* DEVICE_RM */
2011 lpfc_disc_illegal, /* DEVICE_RECOVERY */
2012
2013 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2014 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2015 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2016 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2017 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2018 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2019 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2020 lpfc_disc_illegal, /* CMPL_PRLI */
2021 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2022 lpfc_disc_illegal, /* CMPL_ADISC */
2023 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2024 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2025 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2026
2027 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2028 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2029 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2030 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2031 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2032 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2033 lpfc_disc_illegal, /* CMPL_PLOGI */
2034 lpfc_disc_illegal, /* CMPL_PRLI */
2035 lpfc_disc_illegal, /* CMPL_LOGO */
2036 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2037 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2038 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2039 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2040
2041 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2042 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2043 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2044 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2045 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2046 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
2047 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2048 lpfc_disc_illegal, /* CMPL_PRLI */
2049 lpfc_disc_illegal, /* CMPL_LOGO */
2050 lpfc_disc_illegal, /* CMPL_ADISC */
2051 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2052 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2053 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2054
2055 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2056 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2057 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2058 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2059 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2060 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
2061 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2062 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2063 lpfc_disc_illegal, /* CMPL_LOGO */
2064 lpfc_disc_illegal, /* CMPL_ADISC */
2065 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2066 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2067 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2068
2069 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2070 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2071 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2072 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2073 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2074 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2075 lpfc_disc_illegal, /* CMPL_PLOGI */
2076 lpfc_disc_illegal, /* CMPL_PRLI */
2077 lpfc_disc_illegal, /* CMPL_LOGO */
2078 lpfc_disc_illegal, /* CMPL_ADISC */
2079 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2080 lpfc_disc_illegal, /* DEVICE_RM */
2081 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2082
2083 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2084 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2085 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2086 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2087 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2088 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2089 lpfc_disc_illegal, /* CMPL_PLOGI */
2090 lpfc_disc_illegal, /* CMPL_PRLI */
2091 lpfc_disc_illegal, /* CMPL_LOGO */
2092 lpfc_disc_illegal, /* CMPL_ADISC */
2093 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2094 lpfc_disc_illegal, /* DEVICE_RM */
2095 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2096
2097 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2098 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2099 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2100 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2101 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2102 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2103 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2104 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2105 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2106 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2107 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2108 lpfc_device_rm_npr_node, /* DEVICE_RM */
2109 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2110 };
2111
2112 int
2113 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2114 void *arg, uint32_t evt)
2115 {
2116 uint32_t cur_state, rc;
2117 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2118 uint32_t);
2119 uint32_t got_ndlp = 0;
2120
2121 if (lpfc_nlp_get(ndlp))
2122 got_ndlp = 1;
2123
2124 cur_state = ndlp->nlp_state;
2125
2126 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2127 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2128 "0211 DSM in event x%x on NPort x%x in "
2129 "state %d Data: x%x\n",
2130 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2131
2132 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2133 "DSM in: evt:%d ste:%d did:x%x",
2134 evt, cur_state, ndlp->nlp_DID);
2135
2136 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2137 rc = (func) (vport, ndlp, arg, evt);
2138
2139 /* DSM out state <rc> on NPort <nlp_DID> */
2140 if (got_ndlp) {
2141 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2142 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2143 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2144
2145 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2146 "DSM out: ste:%d did:x%x flg:x%x",
2147 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2148 /* Decrement the ndlp reference count held for this function */
2149 lpfc_nlp_put(ndlp);
2150 } else {
2151 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2152 "0213 DSM out state %d on NPort free\n", rc);
2153
2154 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2155 "DSM out: ste:%d did:x%x flg:x%x",
2156 rc, 0, 0);
2157 }
2158
2159 return rc;
2160 }
Nao low-level kernelspace/userspace library that runs on our robots, Nao-Team HTWK