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Linux 2.6.31.7
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
blob3e74136f1edeae9f13b70b58501882608e61ec64
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 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_hw4.h"
32 #include "lpfc_hw.h"
33 #include "lpfc_sli.h"
34 #include "lpfc_sli4.h"
35 #include "lpfc_nl.h"
36 #include "lpfc_disc.h"
37 #include "lpfc_scsi.h"
38 #include "lpfc.h"
39 #include "lpfc_logmsg.h"
40 #include "lpfc_crtn.h"
41 #include "lpfc_vport.h"
42 #include "lpfc_debugfs.h"
43
44
45 /* Called to verify a rcv'ed ADISC was intended for us. */
46 static int
47 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
48 struct lpfc_name *nn, struct lpfc_name *pn)
49 {
50 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
51 * table entry for that node.
52 */
53 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
54 return 0;
55
56 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
57 return 0;
58
59 /* we match, return success */
60 return 1;
61 }
62
63 int
64 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
65 struct serv_parm * sp, uint32_t class)
66 {
67 volatile struct serv_parm *hsp = &vport->fc_sparam;
68 uint16_t hsp_value, ssp_value = 0;
69
70 /*
71 * The receive data field size and buffer-to-buffer receive data field
72 * size entries are 16 bits but are represented as two 8-bit fields in
73 * the driver data structure to account for rsvd bits and other control
74 * bits. Reconstruct and compare the fields as a 16-bit values before
75 * correcting the byte values.
76 */
77 if (sp->cls1.classValid) {
78 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
79 hsp->cls1.rcvDataSizeLsb;
80 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
81 sp->cls1.rcvDataSizeLsb;
82 if (!ssp_value)
83 goto bad_service_param;
84 if (ssp_value > hsp_value) {
85 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
86 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
87 }
88 } else if (class == CLASS1) {
89 goto bad_service_param;
90 }
91
92 if (sp->cls2.classValid) {
93 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
94 hsp->cls2.rcvDataSizeLsb;
95 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
96 sp->cls2.rcvDataSizeLsb;
97 if (!ssp_value)
98 goto bad_service_param;
99 if (ssp_value > hsp_value) {
100 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
101 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
102 }
103 } else if (class == CLASS2) {
104 goto bad_service_param;
105 }
106
107 if (sp->cls3.classValid) {
108 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
109 hsp->cls3.rcvDataSizeLsb;
110 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
111 sp->cls3.rcvDataSizeLsb;
112 if (!ssp_value)
113 goto bad_service_param;
114 if (ssp_value > hsp_value) {
115 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
116 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
117 }
118 } else if (class == CLASS3) {
119 goto bad_service_param;
120 }
121
122 /*
123 * Preserve the upper four bits of the MSB from the PLOGI response.
124 * These bits contain the Buffer-to-Buffer State Change Number
125 * from the target and need to be passed to the FW.
126 */
127 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
128 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
129 if (ssp_value > hsp_value) {
130 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
131 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
132 (hsp->cmn.bbRcvSizeMsb & 0x0F);
133 }
134
135 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
136 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
137 return 1;
138 bad_service_param:
139 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
140 "0207 Device %x "
141 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
142 "invalid service parameters. Ignoring device.\n",
143 ndlp->nlp_DID,
144 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
145 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
146 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
147 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
148 return 0;
149 }
150
151 static void *
152 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
153 struct lpfc_iocbq *rspiocb)
154 {
155 struct lpfc_dmabuf *pcmd, *prsp;
156 uint32_t *lp;
157 void *ptr = NULL;
158 IOCB_t *irsp;
159
160 irsp = &rspiocb->iocb;
161 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
162
163 /* For lpfc_els_abort, context2 could be zero'ed to delay
164 * freeing associated memory till after ABTS completes.
165 */
166 if (pcmd) {
167 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
168 list);
169 if (prsp) {
170 lp = (uint32_t *) prsp->virt;
171 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
172 }
173 } else {
174 /* Force ulpStatus error since we are returning NULL ptr */
175 if (!(irsp->ulpStatus)) {
176 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
177 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
178 }
179 ptr = NULL;
180 }
181 return ptr;
182 }
183
184
185 /*
186 * Free resources / clean up outstanding I/Os
187 * associated with a LPFC_NODELIST entry. This
188 * routine effectively results in a "software abort".
189 */
190 int
191 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
192 {
193 LIST_HEAD(completions);
194 struct lpfc_sli *psli = &phba->sli;
195 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
196 struct lpfc_iocbq *iocb, *next_iocb;
197
198 /* Abort outstanding I/O on NPort <nlp_DID> */
199 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
200 "0205 Abort outstanding I/O on NPort x%x "
201 "Data: x%x x%x x%x\n",
202 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
203 ndlp->nlp_rpi);
204
205 lpfc_fabric_abort_nport(ndlp);
206
207 /* First check the txq */
208 spin_lock_irq(&phba->hbalock);
209 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
210 /* Check to see if iocb matches the nport we are looking for */
211 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
212 /* It matches, so deque and call compl with anp error */
213 list_move_tail(&iocb->list, &completions);
214 pring->txq_cnt--;
215 }
216 }
217
218 /* Next check the txcmplq */
219 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
220 /* Check to see if iocb matches the nport we are looking for */
221 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
222 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
223 }
224 }
225 spin_unlock_irq(&phba->hbalock);
226
227 /* Cancel all the IOCBs from the completions list */
228 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
229 IOERR_SLI_ABORTED);
230
231 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
232 return 0;
233 }
234
235 static int
236 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
237 struct lpfc_iocbq *cmdiocb)
238 {
239 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
240 struct lpfc_hba *phba = vport->phba;
241 struct lpfc_dmabuf *pcmd;
242 uint32_t *lp;
243 IOCB_t *icmd;
244 struct serv_parm *sp;
245 LPFC_MBOXQ_t *mbox;
246 struct ls_rjt stat;
247 int rc;
248
249 memset(&stat, 0, sizeof (struct ls_rjt));
250 if (vport->port_state <= LPFC_FLOGI) {
251 /* Before responding to PLOGI, check for pt2pt mode.
252 * If we are pt2pt, with an outstanding FLOGI, abort
253 * the FLOGI and resend it first.
254 */
255 if (vport->fc_flag & FC_PT2PT) {
256 lpfc_els_abort_flogi(phba);
257 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
258 /* If the other side is supposed to initiate
259 * the PLOGI anyway, just ACC it now and
260 * move on with discovery.
261 */
262 phba->fc_edtov = FF_DEF_EDTOV;
263 phba->fc_ratov = FF_DEF_RATOV;
264 /* Start discovery - this should just do
265 CLEAR_LA */
266 lpfc_disc_start(vport);
267 } else
268 lpfc_initial_flogi(vport);
269 } else {
270 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
271 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
272 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
273 ndlp, NULL);
274 return 0;
275 }
276 }
277 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
278 lp = (uint32_t *) pcmd->virt;
279 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
280 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
281 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
282 "0140 PLOGI Reject: invalid nname\n");
283 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
284 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
285 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
286 NULL);
287 return 0;
288 }
289 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
290 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
291 "0141 PLOGI Reject: invalid pname\n");
292 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
293 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
294 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
295 NULL);
296 return 0;
297 }
298 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
299 /* Reject this request because invalid parameters */
300 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
301 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
302 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
303 NULL);
304 return 0;
305 }
306 icmd = &cmdiocb->iocb;
307
308 /* PLOGI chkparm OK */
309 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
310 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
311 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
312 ndlp->nlp_rpi);
313
314 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
315 ndlp->nlp_fcp_info |= CLASS2;
316 else
317 ndlp->nlp_fcp_info |= CLASS3;
318
319 ndlp->nlp_class_sup = 0;
320 if (sp->cls1.classValid)
321 ndlp->nlp_class_sup |= FC_COS_CLASS1;
322 if (sp->cls2.classValid)
323 ndlp->nlp_class_sup |= FC_COS_CLASS2;
324 if (sp->cls3.classValid)
325 ndlp->nlp_class_sup |= FC_COS_CLASS3;
326 if (sp->cls4.classValid)
327 ndlp->nlp_class_sup |= FC_COS_CLASS4;
328 ndlp->nlp_maxframe =
329 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
330
331 /* no need to reg_login if we are already in one of these states */
332 switch (ndlp->nlp_state) {
333 case NLP_STE_NPR_NODE:
334 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
335 break;
336 case NLP_STE_REG_LOGIN_ISSUE:
337 case NLP_STE_PRLI_ISSUE:
338 case NLP_STE_UNMAPPED_NODE:
339 case NLP_STE_MAPPED_NODE:
340 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
341 return 1;
342 }
343
344 if ((vport->fc_flag & FC_PT2PT) &&
345 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
346 /* rcv'ed PLOGI decides what our NPortId will be */
347 vport->fc_myDID = icmd->un.rcvels.parmRo;
348 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
349 if (mbox == NULL)
350 goto out;
351 lpfc_config_link(phba, mbox);
352 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
353 mbox->vport = vport;
354 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
355 if (rc == MBX_NOT_FINISHED) {
356 mempool_free(mbox, phba->mbox_mem_pool);
357 goto out;
358 }
359
360 lpfc_can_disctmo(vport);
361 }
362 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
363 if (!mbox)
364 goto out;
365
366 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
367 (uint8_t *) sp, mbox, 0);
368 if (rc) {
369 mempool_free(mbox, phba->mbox_mem_pool);
370 goto out;
371 }
372
373 /* ACC PLOGI rsp command needs to execute first,
374 * queue this mbox command to be processed later.
375 */
376 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
377 /*
378 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
379 * command issued in lpfc_cmpl_els_acc().
380 */
381 mbox->vport = vport;
382 spin_lock_irq(shost->host_lock);
383 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
384 spin_unlock_irq(shost->host_lock);
385
386 /*
387 * If there is an outstanding PLOGI issued, abort it before
388 * sending ACC rsp for received PLOGI. If pending plogi
389 * is not canceled here, the plogi will be rejected by
390 * remote port and will be retried. On a configuration with
391 * single discovery thread, this will cause a huge delay in
392 * discovery. Also this will cause multiple state machines
393 * running in parallel for this node.
394 */
395 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
396 /* software abort outstanding PLOGI */
397 lpfc_els_abort(phba, ndlp);
398 }
399
400 if ((vport->port_type == LPFC_NPIV_PORT &&
401 vport->cfg_restrict_login)) {
402
403 /* In order to preserve RPIs, we want to cleanup
404 * the default RPI the firmware created to rcv
405 * this ELS request. The only way to do this is
406 * to register, then unregister the RPI.
407 */
408 spin_lock_irq(shost->host_lock);
409 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
410 spin_unlock_irq(shost->host_lock);
411 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
412 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
413 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
414 ndlp, mbox);
415 return 1;
416 }
417 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
418 return 1;
419 out:
420 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
421 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
422 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
423 return 0;
424 }
425
426 static int
427 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
428 struct lpfc_iocbq *cmdiocb)
429 {
430 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
431 struct lpfc_dmabuf *pcmd;
432 struct serv_parm *sp;
433 struct lpfc_name *pnn, *ppn;
434 struct ls_rjt stat;
435 ADISC *ap;
436 IOCB_t *icmd;
437 uint32_t *lp;
438 uint32_t cmd;
439
440 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
441 lp = (uint32_t *) pcmd->virt;
442
443 cmd = *lp++;
444 if (cmd == ELS_CMD_ADISC) {
445 ap = (ADISC *) lp;
446 pnn = (struct lpfc_name *) & ap->nodeName;
447 ppn = (struct lpfc_name *) & ap->portName;
448 } else {
449 sp = (struct serv_parm *) lp;
450 pnn = (struct lpfc_name *) & sp->nodeName;
451 ppn = (struct lpfc_name *) & sp->portName;
452 }
453
454 icmd = &cmdiocb->iocb;
455 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
456 if (cmd == ELS_CMD_ADISC) {
457 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
458 } else {
459 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
460 NULL);
461 }
462 return 1;
463 }
464 /* Reject this request because invalid parameters */
465 stat.un.b.lsRjtRsvd0 = 0;
466 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
467 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
468 stat.un.b.vendorUnique = 0;
469 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
470
471 /* 1 sec timeout */
472 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
473
474 spin_lock_irq(shost->host_lock);
475 ndlp->nlp_flag |= NLP_DELAY_TMO;
476 spin_unlock_irq(shost->host_lock);
477 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
478 ndlp->nlp_prev_state = ndlp->nlp_state;
479 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
480 return 0;
481 }
482
483 static int
484 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
485 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
486 {
487 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488
489 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
490 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
491 * PLOGIs during LOGO storms from a device.
492 */
493 spin_lock_irq(shost->host_lock);
494 ndlp->nlp_flag |= NLP_LOGO_ACC;
495 spin_unlock_irq(shost->host_lock);
496 if (els_cmd == ELS_CMD_PRLO)
497 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
498 else
499 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
500 if ((ndlp->nlp_DID == Fabric_DID) &&
501 vport->port_type == LPFC_NPIV_PORT) {
502 lpfc_linkdown_port(vport);
503 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
504 spin_lock_irq(shost->host_lock);
505 ndlp->nlp_flag |= NLP_DELAY_TMO;
506 spin_unlock_irq(shost->host_lock);
507
508 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
509 } else 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_flag & NLP_RPI_VALID)) {
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_rpi(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 int rc;
1082
1083 cmdiocb = (struct lpfc_iocbq *) arg;
1084 rspiocb = cmdiocb->context_un.rsp_iocb;
1085
1086 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1087 irsp = &rspiocb->iocb;
1088
1089 if ((irsp->ulpStatus) ||
1090 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
1091 /* 1 sec timeout */
1092 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1093 spin_lock_irq(shost->host_lock);
1094 ndlp->nlp_flag |= NLP_DELAY_TMO;
1095 spin_unlock_irq(shost->host_lock);
1096 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1097
1098 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1099 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
1100
1101 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1102 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1103 lpfc_unreg_rpi(vport, ndlp);
1104 return ndlp->nlp_state;
1105 }
1106
1107 if (phba->sli_rev == LPFC_SLI_REV4) {
1108 rc = lpfc_sli4_resume_rpi(ndlp);
1109 if (rc) {
1110 /* Stay in state and retry. */
1111 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1112 return ndlp->nlp_state;
1113 }
1114 }
1115
1116 if (ndlp->nlp_type & NLP_FCP_TARGET) {
1117 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1118 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1119 } else {
1120 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1121 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1122 }
1123
1124 return ndlp->nlp_state;
1125 }
1126
1127 static uint32_t
1128 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1129 void *arg, uint32_t evt)
1130 {
1131 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1132
1133 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1134 spin_lock_irq(shost->host_lock);
1135 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1136 spin_unlock_irq(shost->host_lock);
1137 return ndlp->nlp_state;
1138 } else {
1139 /* software abort outstanding ADISC */
1140 lpfc_els_abort(vport->phba, ndlp);
1141
1142 lpfc_drop_node(vport, ndlp);
1143 return NLP_STE_FREED_NODE;
1144 }
1145 }
1146
1147 static uint32_t
1148 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1149 struct lpfc_nodelist *ndlp,
1150 void *arg,
1151 uint32_t evt)
1152 {
1153 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1154 struct lpfc_hba *phba = vport->phba;
1155
1156 /* Don't do anything that will mess up processing of the
1157 * previous RSCN.
1158 */
1159 if (vport->fc_flag & FC_RSCN_DEFERRED)
1160 return ndlp->nlp_state;
1161
1162 /* software abort outstanding ADISC */
1163 lpfc_els_abort(phba, ndlp);
1164
1165 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1166 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1167 spin_lock_irq(shost->host_lock);
1168 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1169 spin_unlock_irq(shost->host_lock);
1170 lpfc_disc_set_adisc(vport, ndlp);
1171 return ndlp->nlp_state;
1172 }
1173
1174 static uint32_t
1175 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1176 struct lpfc_nodelist *ndlp,
1177 void *arg,
1178 uint32_t evt)
1179 {
1180 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1181
1182 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1183 return ndlp->nlp_state;
1184 }
1185
1186 static uint32_t
1187 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1188 struct lpfc_nodelist *ndlp,
1189 void *arg,
1190 uint32_t evt)
1191 {
1192 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1193
1194 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1195 return ndlp->nlp_state;
1196 }
1197
1198 static uint32_t
1199 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1200 struct lpfc_nodelist *ndlp,
1201 void *arg,
1202 uint32_t evt)
1203 {
1204 struct lpfc_hba *phba = vport->phba;
1205 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1206 LPFC_MBOXQ_t *mb;
1207 LPFC_MBOXQ_t *nextmb;
1208 struct lpfc_dmabuf *mp;
1209
1210 cmdiocb = (struct lpfc_iocbq *) arg;
1211
1212 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1213 if ((mb = phba->sli.mbox_active)) {
1214 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1215 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1216 lpfc_nlp_put(ndlp);
1217 mb->context2 = NULL;
1218 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1219 }
1220 }
1221
1222 spin_lock_irq(&phba->hbalock);
1223 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1224 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
1225 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1226 mp = (struct lpfc_dmabuf *) (mb->context1);
1227 if (mp) {
1228 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1229 kfree(mp);
1230 }
1231 lpfc_nlp_put(ndlp);
1232 list_del(&mb->list);
1233 mempool_free(mb, phba->mbox_mem_pool);
1234 }
1235 }
1236 spin_unlock_irq(&phba->hbalock);
1237
1238 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1239 return ndlp->nlp_state;
1240 }
1241
1242 static uint32_t
1243 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1244 struct lpfc_nodelist *ndlp,
1245 void *arg,
1246 uint32_t evt)
1247 {
1248 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1249
1250 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1251 return ndlp->nlp_state;
1252 }
1253
1254 static uint32_t
1255 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1256 struct lpfc_nodelist *ndlp,
1257 void *arg,
1258 uint32_t evt)
1259 {
1260 struct lpfc_iocbq *cmdiocb;
1261
1262 cmdiocb = (struct lpfc_iocbq *) arg;
1263 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1264 return ndlp->nlp_state;
1265 }
1266
1267 static uint32_t
1268 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1269 struct lpfc_nodelist *ndlp,
1270 void *arg,
1271 uint32_t evt)
1272 {
1273 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1274 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1275 MAILBOX_t *mb = &pmb->u.mb;
1276 uint32_t did = mb->un.varWords[1];
1277
1278 if (mb->mbxStatus) {
1279 /* RegLogin failed */
1280 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1281 "0246 RegLogin failed Data: x%x x%x x%x\n",
1282 did, mb->mbxStatus, vport->port_state);
1283 /*
1284 * If RegLogin failed due to lack of HBA resources do not
1285 * retry discovery.
1286 */
1287 if (mb->mbxStatus == MBXERR_RPI_FULL) {
1288 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1289 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1290 return ndlp->nlp_state;
1291 }
1292
1293 /* Put ndlp in npr state set plogi timer for 1 sec */
1294 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1295 spin_lock_irq(shost->host_lock);
1296 ndlp->nlp_flag |= NLP_DELAY_TMO;
1297 spin_unlock_irq(shost->host_lock);
1298 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1299
1300 lpfc_issue_els_logo(vport, ndlp, 0);
1301 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1302 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1303 return ndlp->nlp_state;
1304 }
1305
1306 ndlp->nlp_rpi = mb->un.varWords[0];
1307 ndlp->nlp_flag |= NLP_RPI_VALID;
1308
1309 /* Only if we are not a fabric nport do we issue PRLI */
1310 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1311 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1312 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1313 lpfc_issue_els_prli(vport, ndlp, 0);
1314 } else {
1315 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1316 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1317 }
1318 return ndlp->nlp_state;
1319 }
1320
1321 static uint32_t
1322 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1323 struct lpfc_nodelist *ndlp,
1324 void *arg,
1325 uint32_t evt)
1326 {
1327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1328
1329 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1330 spin_lock_irq(shost->host_lock);
1331 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1332 spin_unlock_irq(shost->host_lock);
1333 return ndlp->nlp_state;
1334 } else {
1335 lpfc_drop_node(vport, ndlp);
1336 return NLP_STE_FREED_NODE;
1337 }
1338 }
1339
1340 static uint32_t
1341 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1342 struct lpfc_nodelist *ndlp,
1343 void *arg,
1344 uint32_t evt)
1345 {
1346 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1347
1348 /* Don't do anything that will mess up processing of the
1349 * previous RSCN.
1350 */
1351 if (vport->fc_flag & FC_RSCN_DEFERRED)
1352 return ndlp->nlp_state;
1353
1354 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1355 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1356 spin_lock_irq(shost->host_lock);
1357 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1358 spin_unlock_irq(shost->host_lock);
1359 lpfc_disc_set_adisc(vport, ndlp);
1360 return ndlp->nlp_state;
1361 }
1362
1363 static uint32_t
1364 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1365 void *arg, uint32_t evt)
1366 {
1367 struct lpfc_iocbq *cmdiocb;
1368
1369 cmdiocb = (struct lpfc_iocbq *) arg;
1370
1371 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1372 return ndlp->nlp_state;
1373 }
1374
1375 static uint32_t
1376 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1377 void *arg, uint32_t evt)
1378 {
1379 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1380
1381 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1382 return ndlp->nlp_state;
1383 }
1384
1385 static uint32_t
1386 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1387 void *arg, uint32_t evt)
1388 {
1389 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1390
1391 /* Software abort outstanding PRLI before sending acc */
1392 lpfc_els_abort(vport->phba, ndlp);
1393
1394 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1395 return ndlp->nlp_state;
1396 }
1397
1398 static uint32_t
1399 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1400 void *arg, uint32_t evt)
1401 {
1402 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1403
1404 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1405 return ndlp->nlp_state;
1406 }
1407
1408 /* This routine is envoked when we rcv a PRLO request from a nport
1409 * we are logged into. We should send back a PRLO rsp setting the
1410 * appropriate bits.
1411 * NEXT STATE = PRLI_ISSUE
1412 */
1413 static uint32_t
1414 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1415 void *arg, uint32_t evt)
1416 {
1417 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1418
1419 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1420 return ndlp->nlp_state;
1421 }
1422
1423 static uint32_t
1424 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1425 void *arg, uint32_t evt)
1426 {
1427 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1428 struct lpfc_iocbq *cmdiocb, *rspiocb;
1429 struct lpfc_hba *phba = vport->phba;
1430 IOCB_t *irsp;
1431 PRLI *npr;
1432
1433 cmdiocb = (struct lpfc_iocbq *) arg;
1434 rspiocb = cmdiocb->context_un.rsp_iocb;
1435 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1436
1437 irsp = &rspiocb->iocb;
1438 if (irsp->ulpStatus) {
1439 if ((vport->port_type == LPFC_NPIV_PORT) &&
1440 vport->cfg_restrict_login) {
1441 goto out;
1442 }
1443 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1444 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1445 return ndlp->nlp_state;
1446 }
1447
1448 /* Check out PRLI rsp */
1449 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1450 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1451 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1452 (npr->prliType == PRLI_FCP_TYPE)) {
1453 if (npr->initiatorFunc)
1454 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1455 if (npr->targetFunc)
1456 ndlp->nlp_type |= NLP_FCP_TARGET;
1457 if (npr->Retry)
1458 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1459 }
1460 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1461 (vport->port_type == LPFC_NPIV_PORT) &&
1462 vport->cfg_restrict_login) {
1463 out:
1464 spin_lock_irq(shost->host_lock);
1465 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1466 spin_unlock_irq(shost->host_lock);
1467 lpfc_issue_els_logo(vport, ndlp, 0);
1468
1469 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1470 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1471 return ndlp->nlp_state;
1472 }
1473
1474 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1475 if (ndlp->nlp_type & NLP_FCP_TARGET)
1476 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1477 else
1478 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1479 return ndlp->nlp_state;
1480 }
1481
1482 /*! lpfc_device_rm_prli_issue
1483 *
1484 * \pre
1485 * \post
1486 * \param phba
1487 * \param ndlp
1488 * \param arg
1489 * \param evt
1490 * \return uint32_t
1491 *
1492 * \b Description:
1493 * This routine is envoked when we a request to remove a nport we are in the
1494 * process of PRLIing. We should software abort outstanding prli, unreg
1495 * login, send a logout. We will change node state to UNUSED_NODE, put it
1496 * on plogi list so it can be freed when LOGO completes.
1497 *
1498 */
1499
1500 static uint32_t
1501 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1502 void *arg, uint32_t evt)
1503 {
1504 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1505
1506 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1507 spin_lock_irq(shost->host_lock);
1508 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1509 spin_unlock_irq(shost->host_lock);
1510 return ndlp->nlp_state;
1511 } else {
1512 /* software abort outstanding PLOGI */
1513 lpfc_els_abort(vport->phba, ndlp);
1514
1515 lpfc_drop_node(vport, ndlp);
1516 return NLP_STE_FREED_NODE;
1517 }
1518 }
1519
1520
1521 /*! lpfc_device_recov_prli_issue
1522 *
1523 * \pre
1524 * \post
1525 * \param phba
1526 * \param ndlp
1527 * \param arg
1528 * \param evt
1529 * \return uint32_t
1530 *
1531 * \b Description:
1532 * The routine is envoked when the state of a device is unknown, like
1533 * during a link down. We should remove the nodelist entry from the
1534 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1535 * outstanding PRLI command, then free the node entry.
1536 */
1537 static uint32_t
1538 lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1539 struct lpfc_nodelist *ndlp,
1540 void *arg,
1541 uint32_t evt)
1542 {
1543 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1544 struct lpfc_hba *phba = vport->phba;
1545
1546 /* Don't do anything that will mess up processing of the
1547 * previous RSCN.
1548 */
1549 if (vport->fc_flag & FC_RSCN_DEFERRED)
1550 return ndlp->nlp_state;
1551
1552 /* software abort outstanding PRLI */
1553 lpfc_els_abort(phba, ndlp);
1554
1555 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1556 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1557 spin_lock_irq(shost->host_lock);
1558 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1559 spin_unlock_irq(shost->host_lock);
1560 lpfc_disc_set_adisc(vport, ndlp);
1561 return ndlp->nlp_state;
1562 }
1563
1564 static uint32_t
1565 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1566 void *arg, uint32_t evt)
1567 {
1568 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1569
1570 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1571 return ndlp->nlp_state;
1572 }
1573
1574 static uint32_t
1575 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1576 void *arg, uint32_t evt)
1577 {
1578 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1579
1580 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1581 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1582 return ndlp->nlp_state;
1583 }
1584
1585 static uint32_t
1586 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1587 void *arg, uint32_t evt)
1588 {
1589 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1590
1591 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1592 return ndlp->nlp_state;
1593 }
1594
1595 static uint32_t
1596 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1597 void *arg, uint32_t evt)
1598 {
1599 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1600
1601 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1602 return ndlp->nlp_state;
1603 }
1604
1605 static uint32_t
1606 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1607 void *arg, uint32_t evt)
1608 {
1609 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1610
1611 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
1612 return ndlp->nlp_state;
1613 }
1614
1615 static uint32_t
1616 lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1617 struct lpfc_nodelist *ndlp,
1618 void *arg,
1619 uint32_t evt)
1620 {
1621 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1622
1623 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
1624 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1625 spin_lock_irq(shost->host_lock);
1626 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1627 spin_unlock_irq(shost->host_lock);
1628 lpfc_disc_set_adisc(vport, ndlp);
1629
1630 return ndlp->nlp_state;
1631 }
1632
1633 static uint32_t
1634 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1635 void *arg, uint32_t evt)
1636 {
1637 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1638
1639 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
1640 return ndlp->nlp_state;
1641 }
1642
1643 static uint32_t
1644 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1645 void *arg, uint32_t evt)
1646 {
1647 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1648
1649 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1650 return ndlp->nlp_state;
1651 }
1652
1653 static uint32_t
1654 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1655 void *arg, uint32_t evt)
1656 {
1657 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1658
1659 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1660 return ndlp->nlp_state;
1661 }
1662
1663 static uint32_t
1664 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1665 struct lpfc_nodelist *ndlp,
1666 void *arg, uint32_t evt)
1667 {
1668 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1669
1670 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1671 return ndlp->nlp_state;
1672 }
1673
1674 static uint32_t
1675 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1676 void *arg, uint32_t evt)
1677 {
1678 struct lpfc_hba *phba = vport->phba;
1679 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1680
1681 /* flush the target */
1682 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1683 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
1684
1685 /* Treat like rcv logo */
1686 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
1687 return ndlp->nlp_state;
1688 }
1689
1690 static uint32_t
1691 lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1692 struct lpfc_nodelist *ndlp,
1693 void *arg,
1694 uint32_t evt)
1695 {
1696 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1697
1698 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
1699 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1700 spin_lock_irq(shost->host_lock);
1701 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1702 spin_unlock_irq(shost->host_lock);
1703 lpfc_disc_set_adisc(vport, ndlp);
1704 return ndlp->nlp_state;
1705 }
1706
1707 static uint32_t
1708 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1709 void *arg, uint32_t evt)
1710 {
1711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1712 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1713
1714 /* Ignore PLOGI if we have an outstanding LOGO */
1715 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
1716 return ndlp->nlp_state;
1717 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1718 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1719 spin_lock_irq(shost->host_lock);
1720 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
1721 spin_unlock_irq(shost->host_lock);
1722 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1723 /* send PLOGI immediately, move to PLOGI issue state */
1724 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1725 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1726 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1727 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1728 }
1729 }
1730 return ndlp->nlp_state;
1731 }
1732
1733 static uint32_t
1734 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1735 void *arg, uint32_t evt)
1736 {
1737 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1738 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1739 struct ls_rjt stat;
1740
1741 memset(&stat, 0, sizeof (struct ls_rjt));
1742 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1743 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1744 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1745
1746 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1747 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1748 spin_lock_irq(shost->host_lock);
1749 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1750 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1751 spin_unlock_irq(shost->host_lock);
1752 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1753 lpfc_issue_els_adisc(vport, ndlp, 0);
1754 } else {
1755 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1756 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1757 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1758 }
1759 }
1760 return ndlp->nlp_state;
1761 }
1762
1763 static uint32_t
1764 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1765 void *arg, uint32_t evt)
1766 {
1767 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1768
1769 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
1770 return ndlp->nlp_state;
1771 }
1772
1773 static uint32_t
1774 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1775 void *arg, uint32_t evt)
1776 {
1777 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1778
1779 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
1780 /*
1781 * Do not start discovery if discovery is about to start
1782 * or discovery in progress for this node. Starting discovery
1783 * here will affect the counting of discovery threads.
1784 */
1785 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
1786 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1787 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1788 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1789 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1790 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1791 lpfc_issue_els_adisc(vport, ndlp, 0);
1792 } else {
1793 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1794 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1795 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1796 }
1797 }
1798 return ndlp->nlp_state;
1799 }
1800
1801 static uint32_t
1802 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1803 void *arg, uint32_t evt)
1804 {
1805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1806 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1807
1808 spin_lock_irq(shost->host_lock);
1809 ndlp->nlp_flag |= NLP_LOGO_ACC;
1810 spin_unlock_irq(shost->host_lock);
1811
1812 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1813
1814 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
1815 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1816 spin_lock_irq(shost->host_lock);
1817 ndlp->nlp_flag |= NLP_DELAY_TMO;
1818 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1819 spin_unlock_irq(shost->host_lock);
1820 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1821 } else {
1822 spin_lock_irq(shost->host_lock);
1823 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1824 spin_unlock_irq(shost->host_lock);
1825 }
1826 return ndlp->nlp_state;
1827 }
1828
1829 static uint32_t
1830 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1831 void *arg, uint32_t evt)
1832 {
1833 struct lpfc_iocbq *cmdiocb, *rspiocb;
1834 IOCB_t *irsp;
1835
1836 cmdiocb = (struct lpfc_iocbq *) arg;
1837 rspiocb = cmdiocb->context_un.rsp_iocb;
1838
1839 irsp = &rspiocb->iocb;
1840 if (irsp->ulpStatus) {
1841 ndlp->nlp_flag |= NLP_DEFER_RM;
1842 return NLP_STE_FREED_NODE;
1843 }
1844 return ndlp->nlp_state;
1845 }
1846
1847 static uint32_t
1848 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1849 void *arg, uint32_t evt)
1850 {
1851 struct lpfc_iocbq *cmdiocb, *rspiocb;
1852 IOCB_t *irsp;
1853
1854 cmdiocb = (struct lpfc_iocbq *) arg;
1855 rspiocb = cmdiocb->context_un.rsp_iocb;
1856
1857 irsp = &rspiocb->iocb;
1858 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1859 lpfc_drop_node(vport, ndlp);
1860 return NLP_STE_FREED_NODE;
1861 }
1862 return ndlp->nlp_state;
1863 }
1864
1865 static uint32_t
1866 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1867 void *arg, uint32_t evt)
1868 {
1869 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1870 if (ndlp->nlp_DID == Fabric_DID) {
1871 spin_lock_irq(shost->host_lock);
1872 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1873 spin_unlock_irq(shost->host_lock);
1874 }
1875 lpfc_unreg_rpi(vport, ndlp);
1876 return ndlp->nlp_state;
1877 }
1878
1879 static uint32_t
1880 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1881 void *arg, uint32_t evt)
1882 {
1883 struct lpfc_iocbq *cmdiocb, *rspiocb;
1884 IOCB_t *irsp;
1885
1886 cmdiocb = (struct lpfc_iocbq *) arg;
1887 rspiocb = cmdiocb->context_un.rsp_iocb;
1888
1889 irsp = &rspiocb->iocb;
1890 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
1891 lpfc_drop_node(vport, ndlp);
1892 return NLP_STE_FREED_NODE;
1893 }
1894 return ndlp->nlp_state;
1895 }
1896
1897 static uint32_t
1898 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1899 struct lpfc_nodelist *ndlp,
1900 void *arg, uint32_t evt)
1901 {
1902 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1903 MAILBOX_t *mb = &pmb->u.mb;
1904
1905 if (!mb->mbxStatus) {
1906 ndlp->nlp_rpi = mb->un.varWords[0];
1907 ndlp->nlp_flag |= NLP_RPI_VALID;
1908 } else {
1909 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
1910 lpfc_drop_node(vport, ndlp);
1911 return NLP_STE_FREED_NODE;
1912 }
1913 }
1914 return ndlp->nlp_state;
1915 }
1916
1917 static uint32_t
1918 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1919 void *arg, uint32_t evt)
1920 {
1921 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1922
1923 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1924 spin_lock_irq(shost->host_lock);
1925 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
1926 spin_unlock_irq(shost->host_lock);
1927 return ndlp->nlp_state;
1928 }
1929 lpfc_drop_node(vport, ndlp);
1930 return NLP_STE_FREED_NODE;
1931 }
1932
1933 static uint32_t
1934 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1935 void *arg, uint32_t evt)
1936 {
1937 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1938
1939 /* Don't do anything that will mess up processing of the
1940 * previous RSCN.
1941 */
1942 if (vport->fc_flag & FC_RSCN_DEFERRED)
1943 return ndlp->nlp_state;
1944
1945 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1946 spin_lock_irq(shost->host_lock);
1947 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1948 spin_unlock_irq(shost->host_lock);
1949 return ndlp->nlp_state;
1950 }
1951
1952
1953 /* This next section defines the NPort Discovery State Machine */
1954
1955 /* There are 4 different double linked lists nodelist entries can reside on.
1956 * The plogi list and adisc list are used when Link Up discovery or RSCN
1957 * processing is needed. Each list holds the nodes that we will send PLOGI
1958 * or ADISC on. These lists will keep track of what nodes will be effected
1959 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1960 * The unmapped_list will contain all nodes that we have successfully logged
1961 * into at the Fibre Channel level. The mapped_list will contain all nodes
1962 * that are mapped FCP targets.
1963 */
1964 /*
1965 * The bind list is a list of undiscovered (potentially non-existent) nodes
1966 * that we have saved binding information on. This information is used when
1967 * nodes transition from the unmapped to the mapped list.
1968 */
1969 /* For UNUSED_NODE state, the node has just been allocated .
1970 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1971 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1972 * and put on the unmapped list. For ADISC processing, the node is taken off
1973 * the ADISC list and placed on either the mapped or unmapped list (depending
1974 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1975 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1976 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1977 * node, the node is taken off the unmapped list. The binding list is checked
1978 * for a valid binding, or a binding is automatically assigned. If binding
1979 * assignment is unsuccessful, the node is left on the unmapped list. If
1980 * binding assignment is successful, the associated binding list entry (if
1981 * any) is removed, and the node is placed on the mapped list.
1982 */
1983 /*
1984 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1985 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
1986 * expire, all effected nodes will receive a DEVICE_RM event.
1987 */
1988 /*
1989 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1990 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1991 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1992 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1993 * we will first process the ADISC list. 32 entries are processed initially and
1994 * ADISC is initited for each one. Completions / Events for each node are
1995 * funnelled thru the state machine. As each node finishes ADISC processing, it
1996 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1997 * waiting, and the ADISC list count is identically 0, then we are done. For
1998 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1999 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2000 * list. 32 entries are processed initially and PLOGI is initited for each one.
2001 * Completions / Events for each node are funnelled thru the state machine. As
2002 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2003 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2004 * indentically 0, then we are done. We have now completed discovery / RSCN
2005 * handling. Upon completion, ALL nodes should be on either the mapped or
2006 * unmapped lists.
2007 */
2008
2009 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2010 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
2011 /* Action routine Event Current State */
2012 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2013 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2014 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2015 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2016 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2017 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2018 lpfc_disc_illegal, /* CMPL_PLOGI */
2019 lpfc_disc_illegal, /* CMPL_PRLI */
2020 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2021 lpfc_disc_illegal, /* CMPL_ADISC */
2022 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2023 lpfc_device_rm_unused_node, /* DEVICE_RM */
2024 lpfc_disc_illegal, /* DEVICE_RECOVERY */
2025
2026 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
2027 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
2028 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
2029 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2030 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2031 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2032 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2033 lpfc_disc_illegal, /* CMPL_PRLI */
2034 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
2035 lpfc_disc_illegal, /* CMPL_ADISC */
2036 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
2037 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2038 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2039
2040 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2041 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2042 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2043 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2044 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2045 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2046 lpfc_disc_illegal, /* CMPL_PLOGI */
2047 lpfc_disc_illegal, /* CMPL_PRLI */
2048 lpfc_disc_illegal, /* CMPL_LOGO */
2049 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2050 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2051 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2052 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2053
2054 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2055 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2056 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2057 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2058 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2059 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
2060 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2061 lpfc_disc_illegal, /* CMPL_PRLI */
2062 lpfc_disc_illegal, /* CMPL_LOGO */
2063 lpfc_disc_illegal, /* CMPL_ADISC */
2064 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2065 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2066 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2067
2068 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2069 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2070 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2071 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2072 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2073 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
2074 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2075 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2076 lpfc_disc_illegal, /* CMPL_LOGO */
2077 lpfc_disc_illegal, /* CMPL_ADISC */
2078 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2079 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2080 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2081
2082 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2083 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2084 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2085 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2086 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2087 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2088 lpfc_disc_illegal, /* CMPL_PLOGI */
2089 lpfc_disc_illegal, /* CMPL_PRLI */
2090 lpfc_disc_illegal, /* CMPL_LOGO */
2091 lpfc_disc_illegal, /* CMPL_ADISC */
2092 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2093 lpfc_disc_illegal, /* DEVICE_RM */
2094 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2095
2096 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2097 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2098 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2099 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2100 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2101 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2102 lpfc_disc_illegal, /* CMPL_PLOGI */
2103 lpfc_disc_illegal, /* CMPL_PRLI */
2104 lpfc_disc_illegal, /* CMPL_LOGO */
2105 lpfc_disc_illegal, /* CMPL_ADISC */
2106 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2107 lpfc_disc_illegal, /* DEVICE_RM */
2108 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2109
2110 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2111 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2112 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2113 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2114 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2115 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
2116 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2117 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
2118 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
2119 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
2120 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2121 lpfc_device_rm_npr_node, /* DEVICE_RM */
2122 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2123 };
2124
2125 int
2126 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2127 void *arg, uint32_t evt)
2128 {
2129 uint32_t cur_state, rc;
2130 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
2131 uint32_t);
2132 uint32_t got_ndlp = 0;
2133
2134 if (lpfc_nlp_get(ndlp))
2135 got_ndlp = 1;
2136
2137 cur_state = ndlp->nlp_state;
2138
2139 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
2140 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2141 "0211 DSM in event x%x on NPort x%x in "
2142 "state %d Data: x%x\n",
2143 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
2144
2145 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2146 "DSM in: evt:%d ste:%d did:x%x",
2147 evt, cur_state, ndlp->nlp_DID);
2148
2149 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2150 rc = (func) (vport, ndlp, arg, evt);
2151
2152 /* DSM out state <rc> on NPort <nlp_DID> */
2153 if (got_ndlp) {
2154 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2155 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2156 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2157
2158 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2159 "DSM out: ste:%d did:x%x flg:x%x",
2160 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2161 /* Decrement the ndlp reference count held for this function */
2162 lpfc_nlp_put(ndlp);
2163 } else {
2164 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2165 "0213 DSM out state %d on NPort free\n", rc);
2166
2167 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2168 "DSM out: ste:%d did:x%x flg:x%x",
2169 rc, 0, 0);
2170 }
2171
2172 return rc;
2173 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree