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[SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_els.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_transport_fc.h>
30
31 #include "lpfc_hw.h"
32 #include "lpfc_sli.h"
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
35 #include "lpfc.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_crtn.h"
38 #include "lpfc_vport.h"
39 #include "lpfc_debugfs.h"
40
41 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
42 struct lpfc_iocbq *);
43 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
44 struct lpfc_iocbq *);
45
46 static int lpfc_max_els_tries = 3;
47
48 int
49 lpfc_els_chk_latt(struct lpfc_vport *vport)
50 {
51 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
52 struct lpfc_hba *phba = vport->phba;
53 uint32_t ha_copy;
54
55 if (vport->port_state >= LPFC_VPORT_READY ||
56 phba->link_state == LPFC_LINK_DOWN)
57 return 0;
58
59 /* Read the HBA Host Attention Register */
60 ha_copy = readl(phba->HAregaddr);
61
62 if (!(ha_copy & HA_LATT))
63 return 0;
64
65 /* Pending Link Event during Discovery */
66 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
67 "%d (%d):0237 Pending Link Event during "
68 "Discovery: State x%x\n",
69 phba->brd_no, vport->vpi, phba->pport->port_state);
70
71 /* CLEAR_LA should re-enable link attention events and
72 * we should then imediately take a LATT event. The
73 * LATT processing should call lpfc_linkdown() which
74 * will cleanup any left over in-progress discovery
75 * events.
76 */
77 spin_lock_irq(shost->host_lock);
78 vport->fc_flag |= FC_ABORT_DISCOVERY;
79 spin_unlock_irq(shost->host_lock);
80
81 if (phba->link_state != LPFC_CLEAR_LA)
82 lpfc_issue_clear_la(phba, vport);
83
84 return 1;
85 }
86
87 static struct lpfc_iocbq *
88 lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
89 uint16_t cmdSize, uint8_t retry,
90 struct lpfc_nodelist *ndlp, uint32_t did,
91 uint32_t elscmd)
92 {
93 struct lpfc_hba *phba = vport->phba;
94 struct lpfc_iocbq *elsiocb;
95 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
96 struct ulp_bde64 *bpl;
97 IOCB_t *icmd;
98
99
100 if (!lpfc_is_link_up(phba))
101 return NULL;
102
103 /* Allocate buffer for command iocb */
104 elsiocb = lpfc_sli_get_iocbq(phba);
105
106 if (elsiocb == NULL)
107 return NULL;
108 icmd = &elsiocb->iocb;
109
110 /* fill in BDEs for command */
111 /* Allocate buffer for command payload */
112 if (((pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
113 ((pcmd->virt = lpfc_mbuf_alloc(phba,
114 MEM_PRI, &(pcmd->phys))) == 0)) {
115 kfree(pcmd);
116
117 lpfc_sli_release_iocbq(phba, elsiocb);
118 return NULL;
119 }
120
121 INIT_LIST_HEAD(&pcmd->list);
122
123 /* Allocate buffer for response payload */
124 if (expectRsp) {
125 prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
126 if (prsp)
127 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
128 &prsp->phys);
129 if (prsp == 0 || prsp->virt == 0) {
130 kfree(prsp);
131 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
132 kfree(pcmd);
133 lpfc_sli_release_iocbq(phba, elsiocb);
134 return NULL;
135 }
136 INIT_LIST_HEAD(&prsp->list);
137 } else {
138 prsp = NULL;
139 }
140
141 /* Allocate buffer for Buffer ptr list */
142 pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
143 if (pbuflist)
144 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
145 &pbuflist->phys);
146 if (pbuflist == 0 || pbuflist->virt == 0) {
147 lpfc_sli_release_iocbq(phba, elsiocb);
148 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
149 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
150 kfree(pcmd);
151 kfree(prsp);
152 kfree(pbuflist);
153 return NULL;
154 }
155
156 INIT_LIST_HEAD(&pbuflist->list);
157
158 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
159 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
160 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL;
161 icmd->un.elsreq64.remoteID = did; /* DID */
162 if (expectRsp) {
163 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
164 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
165 icmd->ulpTimeout = phba->fc_ratov * 2;
166 } else {
167 icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64);
168 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
169 }
170 icmd->ulpBdeCount = 1;
171 icmd->ulpLe = 1;
172 icmd->ulpClass = CLASS3;
173
174 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
175 icmd->un.elsreq64.myID = vport->fc_myDID;
176
177 /* For ELS_REQUEST64_CR, use the VPI by default */
178 icmd->ulpContext = vport->vpi;
179 icmd->ulpCt_h = 0;
180 icmd->ulpCt_l = 1;
181 }
182
183 bpl = (struct ulp_bde64 *) pbuflist->virt;
184 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
185 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
186 bpl->tus.f.bdeSize = cmdSize;
187 bpl->tus.f.bdeFlags = 0;
188 bpl->tus.w = le32_to_cpu(bpl->tus.w);
189
190 if (expectRsp) {
191 bpl++;
192 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
193 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
194 bpl->tus.f.bdeSize = FCELSSIZE;
195 bpl->tus.f.bdeFlags = BUFF_USE_RCV;
196 bpl->tus.w = le32_to_cpu(bpl->tus.w);
197 }
198
199 /* Save for completion so we can release these resources */
200 if (elscmd != ELS_CMD_LS_RJT)
201 elsiocb->context1 = lpfc_nlp_get(ndlp);
202 elsiocb->context2 = pcmd;
203 elsiocb->context3 = pbuflist;
204 elsiocb->retry = retry;
205 elsiocb->vport = vport;
206 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
207
208 if (prsp) {
209 list_add(&prsp->list, &pcmd->list);
210 }
211
212 if (expectRsp) {
213 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
214 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
215 "%d (%d):0116 Xmit ELS command x%x to remote "
216 "NPORT x%x I/O tag: x%x, port state: x%x\n",
217 phba->brd_no, vport->vpi, elscmd, did,
218 elsiocb->iotag, vport->port_state);
219 } else {
220 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
221 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
222 "%d (%d):0117 Xmit ELS response x%x to remote "
223 "NPORT x%x I/O tag: x%x, size: x%x\n",
224 phba->brd_no, vport->vpi, elscmd,
225 ndlp->nlp_DID, elsiocb->iotag, cmdSize);
226 }
227
228 return elsiocb;
229 }
230
231
232 static int
233 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
234 {
235 struct lpfc_hba *phba = vport->phba;
236 LPFC_MBOXQ_t *mbox;
237 struct lpfc_dmabuf *mp;
238 struct lpfc_nodelist *ndlp;
239 struct serv_parm *sp;
240 int rc;
241
242 sp = &phba->fc_fabparam;
243 ndlp = lpfc_findnode_did(vport, Fabric_DID);
244 if (!ndlp)
245 goto fail;
246
247 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
248 if (!mbox)
249 goto fail;
250
251 vport->port_state = LPFC_FABRIC_CFG_LINK;
252 lpfc_config_link(phba, mbox);
253 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
254 mbox->vport = vport;
255
256 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
257 if (rc == MBX_NOT_FINISHED)
258 goto fail_free_mbox;
259
260 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
261 if (!mbox)
262 goto fail;
263 rc = lpfc_reg_login(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
264 0);
265 if (rc)
266 goto fail_free_mbox;
267
268 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
269 mbox->vport = vport;
270 mbox->context2 = lpfc_nlp_get(ndlp);
271
272 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
273 if (rc == MBX_NOT_FINISHED)
274 goto fail_issue_reg_login;
275
276 return 0;
277
278 fail_issue_reg_login:
279 lpfc_nlp_put(ndlp);
280 mp = (struct lpfc_dmabuf *) mbox->context1;
281 lpfc_mbuf_free(phba, mp->virt, mp->phys);
282 kfree(mp);
283 fail_free_mbox:
284 mempool_free(mbox, phba->mbox_mem_pool);
285
286 fail:
287 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
288 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
289 "%d (%d):0249 Cannot issue Register Fabric login\n",
290 phba->brd_no, vport->vpi);
291 return -ENXIO;
292 }
293
294 static int
295 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
296 struct serv_parm *sp, IOCB_t *irsp)
297 {
298 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
299 struct lpfc_hba *phba = vport->phba;
300 struct lpfc_nodelist *np;
301 struct lpfc_nodelist *next_np;
302
303 spin_lock_irq(shost->host_lock);
304 vport->fc_flag |= FC_FABRIC;
305 spin_unlock_irq(shost->host_lock);
306
307 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
308 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
309 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
310
311 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
312
313 if (phba->fc_topology == TOPOLOGY_LOOP) {
314 spin_lock_irq(shost->host_lock);
315 vport->fc_flag |= FC_PUBLIC_LOOP;
316 spin_unlock_irq(shost->host_lock);
317 } else {
318 /*
319 * If we are a N-port connected to a Fabric, fixup sparam's so
320 * logins to devices on remote loops work.
321 */
322 vport->fc_sparam.cmn.altBbCredit = 1;
323 }
324
325 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
326 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
327 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
328 ndlp->nlp_class_sup = 0;
329 if (sp->cls1.classValid)
330 ndlp->nlp_class_sup |= FC_COS_CLASS1;
331 if (sp->cls2.classValid)
332 ndlp->nlp_class_sup |= FC_COS_CLASS2;
333 if (sp->cls3.classValid)
334 ndlp->nlp_class_sup |= FC_COS_CLASS3;
335 if (sp->cls4.classValid)
336 ndlp->nlp_class_sup |= FC_COS_CLASS4;
337 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
338 sp->cmn.bbRcvSizeLsb;
339 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
340
341 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
342 if (sp->cmn.response_multiple_NPort) {
343 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_VPORT,
344 "%d:1816 FLOGI NPIV supported, "
345 "response data 0x%x\n",
346 phba->brd_no,
347 sp->cmn.response_multiple_NPort);
348 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
349
350 } else {
351 /* Because we asked f/w for NPIV it still expects us
352 to call reg_vnpid atleast for the physcial host */
353 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_VPORT,
354 "%d:1817 Fabric does not support NPIV "
355 "- configuring single port mode.\n",
356 phba->brd_no);
357 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
358 }
359 }
360
361 if ((vport->fc_prevDID != vport->fc_myDID) &&
362 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
363
364 /* If our NportID changed, we need to ensure all
365 * remaining NPORTs get unreg_login'ed.
366 */
367 list_for_each_entry_safe(np, next_np,
368 &vport->fc_nodes, nlp_listp) {
369 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
370 !(np->nlp_flag & NLP_NPR_ADISC))
371 continue;
372 spin_lock_irq(shost->host_lock);
373 np->nlp_flag &= ~NLP_NPR_ADISC;
374 spin_unlock_irq(shost->host_lock);
375 lpfc_unreg_rpi(vport, np);
376 }
377 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
378 lpfc_mbx_unreg_vpi(vport);
379 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
380 }
381 }
382
383 ndlp->nlp_sid = irsp->un.ulpWord[4] & Mask_DID;
384 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
385
386 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
387 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) {
388 lpfc_register_new_vport(phba, vport, ndlp);
389 return 0;
390 }
391 lpfc_issue_fabric_reglogin(vport);
392 return 0;
393 }
394
395 /*
396 * We FLOGIed into an NPort, initiate pt2pt protocol
397 */
398 static int
399 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
400 struct serv_parm *sp)
401 {
402 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
403 struct lpfc_hba *phba = vport->phba;
404 LPFC_MBOXQ_t *mbox;
405 int rc;
406
407 spin_lock_irq(shost->host_lock);
408 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
409 spin_unlock_irq(shost->host_lock);
410
411 phba->fc_edtov = FF_DEF_EDTOV;
412 phba->fc_ratov = FF_DEF_RATOV;
413 rc = memcmp(&vport->fc_portname, &sp->portName,
414 sizeof(vport->fc_portname));
415 if (rc >= 0) {
416 /* This side will initiate the PLOGI */
417 spin_lock_irq(shost->host_lock);
418 vport->fc_flag |= FC_PT2PT_PLOGI;
419 spin_unlock_irq(shost->host_lock);
420
421 /*
422 * N_Port ID cannot be 0, set our to LocalID the other
423 * side will be RemoteID.
424 */
425
426 /* not equal */
427 if (rc)
428 vport->fc_myDID = PT2PT_LocalID;
429
430 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
431 if (!mbox)
432 goto fail;
433
434 lpfc_config_link(phba, mbox);
435
436 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
437 mbox->vport = vport;
438 rc = lpfc_sli_issue_mbox(phba, mbox,
439 MBX_NOWAIT | MBX_STOP_IOCB);
440 if (rc == MBX_NOT_FINISHED) {
441 mempool_free(mbox, phba->mbox_mem_pool);
442 goto fail;
443 }
444 lpfc_nlp_put(ndlp);
445
446 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
447 if (!ndlp) {
448 /*
449 * Cannot find existing Fabric ndlp, so allocate a
450 * new one
451 */
452 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
453 if (!ndlp)
454 goto fail;
455
456 lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
457 }
458
459 memcpy(&ndlp->nlp_portname, &sp->portName,
460 sizeof(struct lpfc_name));
461 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
462 sizeof(struct lpfc_name));
463 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
464 spin_lock_irq(shost->host_lock);
465 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
466 spin_unlock_irq(shost->host_lock);
467 } else {
468 /* This side will wait for the PLOGI */
469 lpfc_nlp_put(ndlp);
470 }
471
472 spin_lock_irq(shost->host_lock);
473 vport->fc_flag |= FC_PT2PT;
474 spin_unlock_irq(shost->host_lock);
475
476 /* Start discovery - this should just do CLEAR_LA */
477 lpfc_disc_start(vport);
478 return 0;
479 fail:
480 return -ENXIO;
481 }
482
483 static void
484 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
485 struct lpfc_iocbq *rspiocb)
486 {
487 struct lpfc_vport *vport = cmdiocb->vport;
488 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
489 IOCB_t *irsp = &rspiocb->iocb;
490 struct lpfc_nodelist *ndlp = cmdiocb->context1;
491 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
492 struct serv_parm *sp;
493 int rc;
494
495 /* Check to see if link went down during discovery */
496 if (lpfc_els_chk_latt(vport)) {
497 lpfc_nlp_put(ndlp);
498 goto out;
499 }
500
501 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
502 "FLOGI cmpl: status:x%x/x%x state:x%x",
503 irsp->ulpStatus, irsp->un.ulpWord[4],
504 vport->port_state);
505
506 if (irsp->ulpStatus) {
507 /* Check for retry */
508 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
509 goto out;
510
511 /* FLOGI failed, so there is no fabric */
512 spin_lock_irq(shost->host_lock);
513 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
514 spin_unlock_irq(shost->host_lock);
515
516 /* If private loop, then allow max outstanding els to be
517 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
518 * alpa map would take too long otherwise.
519 */
520 if (phba->alpa_map[0] == 0) {
521 phba->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
522 }
523
524 /* FLOGI failure */
525 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
526 "%d (%d):0100 FLOGI failure Data: x%x x%x "
527 "x%x\n",
528 phba->brd_no, vport->vpi,
529 irsp->ulpStatus, irsp->un.ulpWord[4],
530 irsp->ulpTimeout);
531 goto flogifail;
532 }
533
534 /*
535 * The FLogI succeeded. Sync the data for the CPU before
536 * accessing it.
537 */
538 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
539
540 sp = prsp->virt + sizeof(uint32_t);
541
542 /* FLOGI completes successfully */
543 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
544 "%d (%d):0101 FLOGI completes sucessfully "
545 "Data: x%x x%x x%x x%x\n",
546 phba->brd_no, vport->vpi,
547 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
548 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution);
549
550 if (vport->port_state == LPFC_FLOGI) {
551 /*
552 * If Common Service Parameters indicate Nport
553 * we are point to point, if Fport we are Fabric.
554 */
555 if (sp->cmn.fPort)
556 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
557 else
558 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
559
560 if (!rc)
561 goto out;
562 }
563
564 flogifail:
565 lpfc_nlp_put(ndlp);
566
567 if (!lpfc_error_lost_link(irsp)) {
568 /* FLOGI failed, so just use loop map to make discovery list */
569 lpfc_disc_list_loopmap(vport);
570
571 /* Start discovery */
572 lpfc_disc_start(vport);
573 }
574
575 out:
576 lpfc_els_free_iocb(phba, cmdiocb);
577 }
578
579 static int
580 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
581 uint8_t retry)
582 {
583 struct lpfc_hba *phba = vport->phba;
584 struct serv_parm *sp;
585 IOCB_t *icmd;
586 struct lpfc_iocbq *elsiocb;
587 struct lpfc_sli_ring *pring;
588 uint8_t *pcmd;
589 uint16_t cmdsize;
590 uint32_t tmo;
591 int rc;
592
593 pring = &phba->sli.ring[LPFC_ELS_RING];
594
595 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
596 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
597 ndlp->nlp_DID, ELS_CMD_FLOGI);
598
599 if (!elsiocb)
600 return 1;
601
602 icmd = &elsiocb->iocb;
603 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
604
605 /* For FLOGI request, remainder of payload is service parameters */
606 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
607 pcmd += sizeof(uint32_t);
608 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
609 sp = (struct serv_parm *) pcmd;
610
611 /* Setup CSPs accordingly for Fabric */
612 sp->cmn.e_d_tov = 0;
613 sp->cmn.w2.r_a_tov = 0;
614 sp->cls1.classValid = 0;
615 sp->cls2.seqDelivery = 1;
616 sp->cls3.seqDelivery = 1;
617 if (sp->cmn.fcphLow < FC_PH3)
618 sp->cmn.fcphLow = FC_PH3;
619 if (sp->cmn.fcphHigh < FC_PH3)
620 sp->cmn.fcphHigh = FC_PH3;
621
622 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
623 sp->cmn.request_multiple_Nport = 1;
624
625 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
626 icmd->ulpCt_h = 1;
627 icmd->ulpCt_l = 0;
628 }
629
630 if (phba->fc_topology != TOPOLOGY_LOOP) {
631 icmd->un.elsreq64.myID = 0;
632 icmd->un.elsreq64.fl = 1;
633 }
634
635 tmo = phba->fc_ratov;
636 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
637 lpfc_set_disctmo(vport);
638 phba->fc_ratov = tmo;
639
640 phba->fc_stat.elsXmitFLOGI++;
641 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
642
643 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
644 "Issue FLOGI: opt:x%x",
645 phba->sli3_options, 0, 0);
646
647 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
648 if (rc == IOCB_ERROR) {
649 lpfc_els_free_iocb(phba, elsiocb);
650 return 1;
651 }
652 return 0;
653 }
654
655 int
656 lpfc_els_abort_flogi(struct lpfc_hba *phba)
657 {
658 struct lpfc_sli_ring *pring;
659 struct lpfc_iocbq *iocb, *next_iocb;
660 struct lpfc_nodelist *ndlp;
661 IOCB_t *icmd;
662
663 /* Abort outstanding I/O on NPort <nlp_DID> */
664 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
665 "%d:0201 Abort outstanding I/O on NPort x%x\n",
666 phba->brd_no, Fabric_DID);
667
668 pring = &phba->sli.ring[LPFC_ELS_RING];
669
670 /*
671 * Check the txcmplq for an iocb that matches the nport the driver is
672 * searching for.
673 */
674 spin_lock_irq(&phba->hbalock);
675 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
676 icmd = &iocb->iocb;
677 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR &&
678 icmd->un.elsreq64.bdl.ulpIoTag32) {
679 ndlp = (struct lpfc_nodelist *)(iocb->context1);
680 if (ndlp && (ndlp->nlp_DID == Fabric_DID)) {
681 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
682 }
683 }
684 }
685 spin_unlock_irq(&phba->hbalock);
686
687 return 0;
688 }
689
690 int
691 lpfc_initial_flogi(struct lpfc_vport *vport)
692 {
693 struct lpfc_hba *phba = vport->phba;
694 struct lpfc_nodelist *ndlp;
695
696 /* First look for the Fabric ndlp */
697 ndlp = lpfc_findnode_did(vport, Fabric_DID);
698 if (!ndlp) {
699 /* Cannot find existing Fabric ndlp, so allocate a new one */
700 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
701 if (!ndlp)
702 return 0;
703 lpfc_nlp_init(vport, ndlp, Fabric_DID);
704 } else {
705 lpfc_dequeue_node(vport, ndlp);
706 }
707 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
708 lpfc_nlp_put(ndlp);
709 }
710 return 1;
711 }
712
713 int
714 lpfc_initial_fdisc(struct lpfc_vport *vport)
715 {
716 struct lpfc_hba *phba = vport->phba;
717 struct lpfc_nodelist *ndlp;
718
719 /* First look for the Fabric ndlp */
720 ndlp = lpfc_findnode_did(vport, Fabric_DID);
721 if (!ndlp) {
722 /* Cannot find existing Fabric ndlp, so allocate a new one */
723 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
724 if (!ndlp)
725 return 0;
726 lpfc_nlp_init(vport, ndlp, Fabric_DID);
727 } else {
728 lpfc_dequeue_node(vport, ndlp);
729 }
730 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
731 lpfc_nlp_put(ndlp);
732 }
733 return 1;
734 }
735 static void
736 lpfc_more_plogi(struct lpfc_vport *vport)
737 {
738 int sentplogi;
739 struct lpfc_hba *phba = vport->phba;
740
741 if (vport->num_disc_nodes)
742 vport->num_disc_nodes--;
743
744 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
745 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
746 "%d (%d):0232 Continue discovery with %d PLOGIs to go "
747 "Data: x%x x%x x%x\n",
748 phba->brd_no, vport->vpi, vport->num_disc_nodes,
749 vport->fc_plogi_cnt, vport->fc_flag, vport->port_state);
750
751 /* Check to see if there are more PLOGIs to be sent */
752 if (vport->fc_flag & FC_NLP_MORE)
753 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
754 sentplogi = lpfc_els_disc_plogi(vport);
755
756 return;
757 }
758
759 static struct lpfc_nodelist *
760 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
761 struct lpfc_nodelist *ndlp)
762 {
763 struct lpfc_vport *vport = ndlp->vport;
764 struct lpfc_nodelist *new_ndlp;
765 struct serv_parm *sp;
766 uint8_t name[sizeof(struct lpfc_name)];
767 uint32_t rc;
768
769 /* Fabric nodes can have the same WWPN so we don't bother searching
770 * by WWPN. Just return the ndlp that was given to us.
771 */
772 if (ndlp->nlp_type & NLP_FABRIC)
773 return ndlp;
774
775 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
776 memset(name, 0, sizeof(struct lpfc_name));
777
778 /* Now we find out if the NPort we are logging into, matches the WWPN
779 * we have for that ndlp. If not, we have some work to do.
780 */
781 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
782
783 if (new_ndlp == ndlp)
784 return ndlp;
785
786 if (!new_ndlp) {
787 rc = memcmp(&ndlp->nlp_portname, name,
788 sizeof(struct lpfc_name));
789 if (!rc)
790 return ndlp;
791 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
792 if (!new_ndlp)
793 return ndlp;
794
795 lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
796 }
797
798 lpfc_unreg_rpi(vport, new_ndlp);
799 new_ndlp->nlp_DID = ndlp->nlp_DID;
800 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
801 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
802
803 /* Move this back to NPR state */
804 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0)
805 lpfc_drop_node(vport, ndlp);
806 else {
807 lpfc_unreg_rpi(vport, ndlp);
808 ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */
809 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
810 }
811 return new_ndlp;
812 }
813
814 static void
815 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
816 struct lpfc_iocbq *rspiocb)
817 {
818 struct lpfc_vport *vport = cmdiocb->vport;
819 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
820 IOCB_t *irsp;
821 struct lpfc_nodelist *ndlp;
822 struct lpfc_dmabuf *prsp;
823 int disc, rc, did, type;
824
825 /* we pass cmdiocb to state machine which needs rspiocb as well */
826 cmdiocb->context_un.rsp_iocb = rspiocb;
827
828 irsp = &rspiocb->iocb;
829 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
830 "PLOGI cmpl: status:x%x/x%x did:x%x",
831 irsp->ulpStatus, irsp->un.ulpWord[4],
832 irsp->un.elsreq64.remoteID);
833
834 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
835 if (!ndlp) {
836 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
837 "%d (%d):0136 PLOGI completes to NPort x%x "
838 "with no ndlp. Data: x%x x%x x%x\n",
839 phba->brd_no, vport->vpi, irsp->un.elsreq64.remoteID,
840 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpIoTag);
841 goto out;
842 }
843
844 /* Since ndlp can be freed in the disc state machine, note if this node
845 * is being used during discovery.
846 */
847 spin_lock_irq(shost->host_lock);
848 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
849 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
850 spin_unlock_irq(shost->host_lock);
851 rc = 0;
852
853 /* PLOGI completes to NPort <nlp_DID> */
854 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
855 "%d (%d):0102 PLOGI completes to NPort x%x "
856 "Data: x%x x%x x%x x%x x%x\n",
857 phba->brd_no, vport->vpi, ndlp->nlp_DID,
858 irsp->ulpStatus, irsp->un.ulpWord[4],
859 irsp->ulpTimeout, disc, vport->num_disc_nodes);
860
861 /* Check to see if link went down during discovery */
862 if (lpfc_els_chk_latt(vport)) {
863 spin_lock_irq(shost->host_lock);
864 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
865 spin_unlock_irq(shost->host_lock);
866 goto out;
867 }
868
869 /* ndlp could be freed in DSM, save these values now */
870 type = ndlp->nlp_type;
871 did = ndlp->nlp_DID;
872
873 if (irsp->ulpStatus) {
874 /* Check for retry */
875 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
876 /* ELS command is being retried */
877 if (disc) {
878 spin_lock_irq(shost->host_lock);
879 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
880 spin_unlock_irq(shost->host_lock);
881 }
882 goto out;
883 }
884
885 /* PLOGI failed */
886 if (ndlp->nlp_DID == NameServer_DID) {
887 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
888 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
889 "%d (%d):0250 Nameserver login error: "
890 "0x%x / 0x%x\n",
891 phba->brd_no, vport->vpi,
892 irsp->ulpStatus, irsp->un.ulpWord[4]);
893 }
894
895 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
896 if (lpfc_error_lost_link(irsp)) {
897 rc = NLP_STE_FREED_NODE;
898 } else {
899 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
900 NLP_EVT_CMPL_PLOGI);
901 }
902 } else {
903 /* Good status, call state machine */
904 prsp = list_entry(((struct lpfc_dmabuf *)
905 cmdiocb->context2)->list.next,
906 struct lpfc_dmabuf, list);
907 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
908 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
909 NLP_EVT_CMPL_PLOGI);
910 }
911
912 if (disc && vport->num_disc_nodes) {
913 /* Check to see if there are more PLOGIs to be sent */
914 lpfc_more_plogi(vport);
915
916 if (vport->num_disc_nodes == 0) {
917 spin_lock_irq(shost->host_lock);
918 vport->fc_flag &= ~FC_NDISC_ACTIVE;
919 spin_unlock_irq(shost->host_lock);
920
921 lpfc_can_disctmo(vport);
922 if (vport->fc_flag & FC_RSCN_MODE) {
923 /*
924 * Check to see if more RSCNs came in while
925 * we were processing this one.
926 */
927 if ((vport->fc_rscn_id_cnt == 0) &&
928 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
929 spin_lock_irq(shost->host_lock);
930 vport->fc_flag &= ~FC_RSCN_MODE;
931 spin_unlock_irq(shost->host_lock);
932 } else {
933 lpfc_els_handle_rscn(vport);
934 }
935 }
936 }
937 }
938
939 out:
940 lpfc_els_free_iocb(phba, cmdiocb);
941 return;
942 }
943
944 int
945 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
946 {
947 struct lpfc_hba *phba = vport->phba;
948 struct serv_parm *sp;
949 IOCB_t *icmd;
950 struct lpfc_iocbq *elsiocb;
951 struct lpfc_sli_ring *pring;
952 struct lpfc_sli *psli;
953 uint8_t *pcmd;
954 uint16_t cmdsize;
955 int ret;
956
957 psli = &phba->sli;
958 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
959
960 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
961 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, NULL, did,
962 ELS_CMD_PLOGI);
963 if (!elsiocb)
964 return 1;
965
966 icmd = &elsiocb->iocb;
967 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
968
969 /* For PLOGI request, remainder of payload is service parameters */
970 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
971 pcmd += sizeof(uint32_t);
972 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
973 sp = (struct serv_parm *) pcmd;
974
975 if (sp->cmn.fcphLow < FC_PH_4_3)
976 sp->cmn.fcphLow = FC_PH_4_3;
977
978 if (sp->cmn.fcphHigh < FC_PH3)
979 sp->cmn.fcphHigh = FC_PH3;
980
981 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
982 "Issue PLOGI: did:x%x",
983 did, 0, 0);
984
985 phba->fc_stat.elsXmitPLOGI++;
986 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
987 ret = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
988
989 if (ret == IOCB_ERROR) {
990 lpfc_els_free_iocb(phba, elsiocb);
991 return 1;
992 }
993 return 0;
994 }
995
996 static void
997 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
998 struct lpfc_iocbq *rspiocb)
999 {
1000 struct lpfc_vport *vport = cmdiocb->vport;
1001 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1002 IOCB_t *irsp;
1003 struct lpfc_sli *psli;
1004 struct lpfc_nodelist *ndlp;
1005
1006 psli = &phba->sli;
1007 /* we pass cmdiocb to state machine which needs rspiocb as well */
1008 cmdiocb->context_un.rsp_iocb = rspiocb;
1009
1010 irsp = &(rspiocb->iocb);
1011 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1012 spin_lock_irq(shost->host_lock);
1013 ndlp->nlp_flag &= ~NLP_PRLI_SND;
1014 spin_unlock_irq(shost->host_lock);
1015
1016 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1017 "PRLI cmpl: status:x%x/x%x did:x%x",
1018 irsp->ulpStatus, irsp->un.ulpWord[4],
1019 ndlp->nlp_DID);
1020
1021 /* PRLI completes to NPort <nlp_DID> */
1022 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1023 "%d (%d):0103 PRLI completes to NPort x%x "
1024 "Data: x%x x%x x%x x%x\n",
1025 phba->brd_no, vport->vpi, ndlp->nlp_DID,
1026 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout,
1027 vport->num_disc_nodes);
1028
1029 vport->fc_prli_sent--;
1030 /* Check to see if link went down during discovery */
1031 if (lpfc_els_chk_latt(vport))
1032 goto out;
1033
1034 if (irsp->ulpStatus) {
1035 /* Check for retry */
1036 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1037 /* ELS command is being retried */
1038 goto out;
1039 }
1040 /* PRLI failed */
1041 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1042 if (lpfc_error_lost_link(irsp)) {
1043 goto out;
1044 } else {
1045 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1046 NLP_EVT_CMPL_PRLI);
1047 }
1048 } else {
1049 /* Good status, call state machine */
1050 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1051 NLP_EVT_CMPL_PRLI);
1052 }
1053
1054 out:
1055 lpfc_els_free_iocb(phba, cmdiocb);
1056 return;
1057 }
1058
1059 int
1060 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1061 uint8_t retry)
1062 {
1063 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1064 struct lpfc_hba *phba = vport->phba;
1065 PRLI *npr;
1066 IOCB_t *icmd;
1067 struct lpfc_iocbq *elsiocb;
1068 struct lpfc_sli_ring *pring;
1069 struct lpfc_sli *psli;
1070 uint8_t *pcmd;
1071 uint16_t cmdsize;
1072
1073 psli = &phba->sli;
1074 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1075
1076 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
1077 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1078 ndlp->nlp_DID, ELS_CMD_PRLI);
1079 if (!elsiocb)
1080 return 1;
1081
1082 icmd = &elsiocb->iocb;
1083 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1084
1085 /* For PRLI request, remainder of payload is service parameters */
1086 memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
1087 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
1088 pcmd += sizeof(uint32_t);
1089
1090 /* For PRLI, remainder of payload is PRLI parameter page */
1091 npr = (PRLI *) pcmd;
1092 /*
1093 * If our firmware version is 3.20 or later,
1094 * set the following bits for FC-TAPE support.
1095 */
1096 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
1097 npr->ConfmComplAllowed = 1;
1098 npr->Retry = 1;
1099 npr->TaskRetryIdReq = 1;
1100 }
1101 npr->estabImagePair = 1;
1102 npr->readXferRdyDis = 1;
1103
1104 /* For FCP support */
1105 npr->prliType = PRLI_FCP_TYPE;
1106 npr->initiatorFunc = 1;
1107
1108 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1109 "Issue PRLI: did:x%x",
1110 ndlp->nlp_DID, 0, 0);
1111
1112 phba->fc_stat.elsXmitPRLI++;
1113 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
1114 spin_lock_irq(shost->host_lock);
1115 ndlp->nlp_flag |= NLP_PRLI_SND;
1116 spin_unlock_irq(shost->host_lock);
1117 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1118 spin_lock_irq(shost->host_lock);
1119 ndlp->nlp_flag &= ~NLP_PRLI_SND;
1120 spin_unlock_irq(shost->host_lock);
1121 lpfc_els_free_iocb(phba, elsiocb);
1122 return 1;
1123 }
1124 vport->fc_prli_sent++;
1125 return 0;
1126 }
1127
1128 static void
1129 lpfc_more_adisc(struct lpfc_vport *vport)
1130 {
1131 int sentadisc;
1132 struct lpfc_hba *phba = vport->phba;
1133
1134 if (vport->num_disc_nodes)
1135 vport->num_disc_nodes--;
1136
1137 /* Continue discovery with <num_disc_nodes> ADISCs to go */
1138 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1139 "%d (%d):0210 Continue discovery with %d ADISCs to go "
1140 "Data: x%x x%x x%x\n",
1141 phba->brd_no, vport->vpi, vport->num_disc_nodes,
1142 vport->fc_adisc_cnt, vport->fc_flag, vport->port_state);
1143
1144 /* Check to see if there are more ADISCs to be sent */
1145 if (vport->fc_flag & FC_NLP_MORE) {
1146 lpfc_set_disctmo(vport);
1147 /* go thru NPR nodes and issue any remaining ELS ADISCs */
1148 sentadisc = lpfc_els_disc_adisc(vport);
1149 }
1150 return;
1151 }
1152
1153 static void
1154 lpfc_rscn_disc(struct lpfc_vport *vport)
1155 {
1156 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1157
1158 lpfc_can_disctmo(vport);
1159
1160 /* RSCN discovery */
1161 /* go thru NPR nodes and issue ELS PLOGIs */
1162 if (vport->fc_npr_cnt)
1163 if (lpfc_els_disc_plogi(vport))
1164 return;
1165
1166 if (vport->fc_flag & FC_RSCN_MODE) {
1167 /* Check to see if more RSCNs came in while we were
1168 * processing this one.
1169 */
1170 if ((vport->fc_rscn_id_cnt == 0) &&
1171 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
1172 spin_lock_irq(shost->host_lock);
1173 vport->fc_flag &= ~FC_RSCN_MODE;
1174 spin_unlock_irq(shost->host_lock);
1175 } else {
1176 lpfc_els_handle_rscn(vport);
1177 }
1178 }
1179 }
1180
1181 static void
1182 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1183 struct lpfc_iocbq *rspiocb)
1184 {
1185 struct lpfc_vport *vport = cmdiocb->vport;
1186 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1187 IOCB_t *irsp;
1188 struct lpfc_nodelist *ndlp;
1189 int disc;
1190
1191 /* we pass cmdiocb to state machine which needs rspiocb as well */
1192 cmdiocb->context_un.rsp_iocb = rspiocb;
1193
1194 irsp = &(rspiocb->iocb);
1195 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1196
1197 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1198 "ADISC cmpl: status:x%x/x%x did:x%x",
1199 irsp->ulpStatus, irsp->un.ulpWord[4],
1200 ndlp->nlp_DID);
1201
1202 /* Since ndlp can be freed in the disc state machine, note if this node
1203 * is being used during discovery.
1204 */
1205 spin_lock_irq(shost->host_lock);
1206 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1207 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
1208 spin_unlock_irq(shost->host_lock);
1209
1210 /* ADISC completes to NPort <nlp_DID> */
1211 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1212 "%d (%d):0104 ADISC completes to NPort x%x "
1213 "Data: x%x x%x x%x x%x x%x\n",
1214 phba->brd_no, vport->vpi, ndlp->nlp_DID,
1215 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout,
1216 disc, vport->num_disc_nodes);
1217
1218 /* Check to see if link went down during discovery */
1219 if (lpfc_els_chk_latt(vport)) {
1220 spin_lock_irq(shost->host_lock);
1221 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1222 spin_unlock_irq(shost->host_lock);
1223 goto out;
1224 }
1225
1226 if (irsp->ulpStatus) {
1227 /* Check for retry */
1228 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1229 /* ELS command is being retried */
1230 if (disc) {
1231 spin_lock_irq(shost->host_lock);
1232 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1233 spin_unlock_irq(shost->host_lock);
1234 lpfc_set_disctmo(vport);
1235 }
1236 goto out;
1237 }
1238 /* ADISC failed */
1239 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1240 if (!lpfc_error_lost_link(irsp)) {
1241 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1242 NLP_EVT_CMPL_ADISC);
1243 }
1244 } else {
1245 /* Good status, call state machine */
1246 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1247 NLP_EVT_CMPL_ADISC);
1248 }
1249
1250 if (disc && vport->num_disc_nodes) {
1251 /* Check to see if there are more ADISCs to be sent */
1252 lpfc_more_adisc(vport);
1253
1254 /* Check to see if we are done with ADISC authentication */
1255 if (vport->num_disc_nodes == 0) {
1256 /* If we get here, there is nothing left to ADISC */
1257 /*
1258 * For NPIV, cmpl_reg_vpi will set port_state to READY,
1259 * and continue discovery.
1260 */
1261 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1262 !(vport->fc_flag & FC_RSCN_MODE)) {
1263 lpfc_issue_reg_vpi(phba, vport);
1264 goto out;
1265 }
1266 /*
1267 * For SLI2, we need to set port_state to READY
1268 * and continue discovery.
1269 */
1270 if (vport->port_state < LPFC_VPORT_READY) {
1271 /* If we get here, there is nothing to ADISC */
1272 if (vport->port_type == LPFC_PHYSICAL_PORT)
1273 lpfc_issue_clear_la(phba, vport);
1274
1275 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
1276 vport->num_disc_nodes = 0;
1277 /* go thru NPR list, issue ELS PLOGIs */
1278 if (vport->fc_npr_cnt)
1279 lpfc_els_disc_plogi(vport);
1280
1281 if (!vport->num_disc_nodes) {
1282 spin_lock_irq(shost->host_lock);
1283 vport->fc_flag &=
1284 ~FC_NDISC_ACTIVE;
1285 spin_unlock_irq(
1286 shost->host_lock);
1287 lpfc_can_disctmo(vport);
1288 }
1289 }
1290 vport->port_state = LPFC_VPORT_READY;
1291 } else {
1292 lpfc_rscn_disc(vport);
1293 }
1294 }
1295 }
1296 out:
1297 lpfc_els_free_iocb(phba, cmdiocb);
1298 return;
1299 }
1300
1301 int
1302 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1303 uint8_t retry)
1304 {
1305 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1306 struct lpfc_hba *phba = vport->phba;
1307 ADISC *ap;
1308 IOCB_t *icmd;
1309 struct lpfc_iocbq *elsiocb;
1310 struct lpfc_sli *psli = &phba->sli;
1311 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
1312 uint8_t *pcmd;
1313 uint16_t cmdsize;
1314
1315 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
1316 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1317 ndlp->nlp_DID, ELS_CMD_ADISC);
1318 if (!elsiocb)
1319 return 1;
1320
1321 icmd = &elsiocb->iocb;
1322 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1323
1324 /* For ADISC request, remainder of payload is service parameters */
1325 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
1326 pcmd += sizeof(uint32_t);
1327
1328 /* Fill in ADISC payload */
1329 ap = (ADISC *) pcmd;
1330 ap->hardAL_PA = phba->fc_pref_ALPA;
1331 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
1332 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
1333 ap->DID = be32_to_cpu(vport->fc_myDID);
1334
1335 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1336 "Issue ADISC: did:x%x",
1337 ndlp->nlp_DID, 0, 0);
1338
1339 phba->fc_stat.elsXmitADISC++;
1340 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
1341 spin_lock_irq(shost->host_lock);
1342 ndlp->nlp_flag |= NLP_ADISC_SND;
1343 spin_unlock_irq(shost->host_lock);
1344 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1345 spin_lock_irq(shost->host_lock);
1346 ndlp->nlp_flag &= ~NLP_ADISC_SND;
1347 spin_unlock_irq(shost->host_lock);
1348 lpfc_els_free_iocb(phba, elsiocb);
1349 return 1;
1350 }
1351 return 0;
1352 }
1353
1354 static void
1355 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1356 struct lpfc_iocbq *rspiocb)
1357 {
1358 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1359 struct lpfc_vport *vport = ndlp->vport;
1360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1361 IOCB_t *irsp;
1362 struct lpfc_sli *psli;
1363
1364 psli = &phba->sli;
1365 /* we pass cmdiocb to state machine which needs rspiocb as well */
1366 cmdiocb->context_un.rsp_iocb = rspiocb;
1367
1368 irsp = &(rspiocb->iocb);
1369 spin_lock_irq(shost->host_lock);
1370 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1371 spin_unlock_irq(shost->host_lock);
1372
1373 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1374 "LOGO cmpl: status:x%x/x%x did:x%x",
1375 irsp->ulpStatus, irsp->un.ulpWord[4],
1376 ndlp->nlp_DID);
1377
1378 /* LOGO completes to NPort <nlp_DID> */
1379 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1380 "%d (%d):0105 LOGO completes to NPort x%x "
1381 "Data: x%x x%x x%x x%x\n",
1382 phba->brd_no, vport->vpi, ndlp->nlp_DID,
1383 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout,
1384 vport->num_disc_nodes);
1385
1386 /* Check to see if link went down during discovery */
1387 if (lpfc_els_chk_latt(vport))
1388 goto out;
1389
1390 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
1391 /* NLP_EVT_DEVICE_RM should unregister the RPI
1392 * which should abort all outstanding IOs.
1393 */
1394 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1395 NLP_EVT_DEVICE_RM);
1396 goto out;
1397 }
1398
1399 if (irsp->ulpStatus) {
1400 /* Check for retry */
1401 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1402 /* ELS command is being retried */
1403 goto out;
1404 /* LOGO failed */
1405 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1406 if (lpfc_error_lost_link(irsp))
1407 goto out;
1408 else
1409 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1410 NLP_EVT_CMPL_LOGO);
1411 } else {
1412 /* Good status, call state machine.
1413 * This will unregister the rpi if needed.
1414 */
1415 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1416 NLP_EVT_CMPL_LOGO);
1417 }
1418
1419 out:
1420 lpfc_els_free_iocb(phba, cmdiocb);
1421 return;
1422 }
1423
1424 int
1425 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1426 uint8_t retry)
1427 {
1428 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1429 struct lpfc_hba *phba = vport->phba;
1430 IOCB_t *icmd;
1431 struct lpfc_iocbq *elsiocb;
1432 struct lpfc_sli_ring *pring;
1433 struct lpfc_sli *psli;
1434 uint8_t *pcmd;
1435 uint16_t cmdsize;
1436 int rc;
1437
1438 psli = &phba->sli;
1439 pring = &psli->ring[LPFC_ELS_RING];
1440
1441 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
1442 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1443 ndlp->nlp_DID, ELS_CMD_LOGO);
1444 if (!elsiocb)
1445 return 1;
1446
1447 icmd = &elsiocb->iocb;
1448 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1449 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
1450 pcmd += sizeof(uint32_t);
1451
1452 /* Fill in LOGO payload */
1453 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
1454 pcmd += sizeof(uint32_t);
1455 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
1456
1457 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1458 "Issue LOGO: did:x%x",
1459 ndlp->nlp_DID, 0, 0);
1460
1461 phba->fc_stat.elsXmitLOGO++;
1462 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
1463 spin_lock_irq(shost->host_lock);
1464 ndlp->nlp_flag |= NLP_LOGO_SND;
1465 spin_unlock_irq(shost->host_lock);
1466 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
1467
1468 if (rc == IOCB_ERROR) {
1469 spin_lock_irq(shost->host_lock);
1470 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1471 spin_unlock_irq(shost->host_lock);
1472 lpfc_els_free_iocb(phba, elsiocb);
1473 return 1;
1474 }
1475 return 0;
1476 }
1477
1478 static void
1479 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1480 struct lpfc_iocbq *rspiocb)
1481 {
1482 struct lpfc_vport *vport = cmdiocb->vport;
1483 IOCB_t *irsp;
1484
1485 irsp = &rspiocb->iocb;
1486
1487 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1488 "ELS cmd cmpl: status:x%x/x%x did:x%x",
1489 irsp->ulpStatus, irsp->un.ulpWord[4],
1490 irsp->un.elsreq64.remoteID);
1491
1492 /* ELS cmd tag <ulpIoTag> completes */
1493 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1494 "%d (%d):0106 ELS cmd tag x%x completes Data: x%x x%x "
1495 "x%x\n",
1496 phba->brd_no, vport->vpi,
1497 irsp->ulpIoTag, irsp->ulpStatus,
1498 irsp->un.ulpWord[4], irsp->ulpTimeout);
1499
1500 /* Check to see if link went down during discovery */
1501 lpfc_els_chk_latt(vport);
1502 lpfc_els_free_iocb(phba, cmdiocb);
1503 return;
1504 }
1505
1506 int
1507 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
1508 {
1509 struct lpfc_hba *phba = vport->phba;
1510 IOCB_t *icmd;
1511 struct lpfc_iocbq *elsiocb;
1512 struct lpfc_sli_ring *pring;
1513 struct lpfc_sli *psli;
1514 uint8_t *pcmd;
1515 uint16_t cmdsize;
1516 struct lpfc_nodelist *ndlp;
1517
1518 psli = &phba->sli;
1519 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1520 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
1521 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1522 if (!ndlp)
1523 return 1;
1524
1525 lpfc_nlp_init(vport, ndlp, nportid);
1526
1527 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1528 ndlp->nlp_DID, ELS_CMD_SCR);
1529
1530 if (!elsiocb) {
1531 lpfc_nlp_put(ndlp);
1532 return 1;
1533 }
1534
1535 icmd = &elsiocb->iocb;
1536 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1537
1538 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
1539 pcmd += sizeof(uint32_t);
1540
1541 /* For SCR, remainder of payload is SCR parameter page */
1542 memset(pcmd, 0, sizeof(SCR));
1543 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
1544
1545 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1546 "Issue SCR: did:x%x",
1547 ndlp->nlp_DID, 0, 0);
1548
1549 phba->fc_stat.elsXmitSCR++;
1550 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1551 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1552 lpfc_nlp_put(ndlp);
1553 lpfc_els_free_iocb(phba, elsiocb);
1554 return 1;
1555 }
1556 lpfc_nlp_put(ndlp);
1557 return 0;
1558 }
1559
1560 static int
1561 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
1562 {
1563 struct lpfc_hba *phba = vport->phba;
1564 IOCB_t *icmd;
1565 struct lpfc_iocbq *elsiocb;
1566 struct lpfc_sli_ring *pring;
1567 struct lpfc_sli *psli;
1568 FARP *fp;
1569 uint8_t *pcmd;
1570 uint32_t *lp;
1571 uint16_t cmdsize;
1572 struct lpfc_nodelist *ondlp;
1573 struct lpfc_nodelist *ndlp;
1574
1575 psli = &phba->sli;
1576 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1577 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
1578 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1579 if (!ndlp)
1580 return 1;
1581
1582 lpfc_nlp_init(vport, ndlp, nportid);
1583
1584 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1585 ndlp->nlp_DID, ELS_CMD_RNID);
1586 if (!elsiocb) {
1587 lpfc_nlp_put(ndlp);
1588 return 1;
1589 }
1590
1591 icmd = &elsiocb->iocb;
1592 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1593
1594 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
1595 pcmd += sizeof(uint32_t);
1596
1597 /* Fill in FARPR payload */
1598 fp = (FARP *) (pcmd);
1599 memset(fp, 0, sizeof(FARP));
1600 lp = (uint32_t *) pcmd;
1601 *lp++ = be32_to_cpu(nportid);
1602 *lp++ = be32_to_cpu(vport->fc_myDID);
1603 fp->Rflags = 0;
1604 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
1605
1606 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
1607 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
1608 ondlp = lpfc_findnode_did(vport, nportid);
1609 if (ondlp) {
1610 memcpy(&fp->OportName, &ondlp->nlp_portname,
1611 sizeof(struct lpfc_name));
1612 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
1613 sizeof(struct lpfc_name));
1614 }
1615
1616 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1617 "Issue FARPR: did:x%x",
1618 ndlp->nlp_DID, 0, 0);
1619
1620 phba->fc_stat.elsXmitFARPR++;
1621 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1622 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1623 lpfc_nlp_put(ndlp);
1624 lpfc_els_free_iocb(phba, elsiocb);
1625 return 1;
1626 }
1627 lpfc_nlp_put(ndlp);
1628 return 0;
1629 }
1630
1631 static void
1632 lpfc_end_rscn(struct lpfc_vport *vport)
1633 {
1634 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1635
1636 if (vport->fc_flag & FC_RSCN_MODE) {
1637 /*
1638 * Check to see if more RSCNs came in while we were
1639 * processing this one.
1640 */
1641 if (vport->fc_rscn_id_cnt ||
1642 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1643 lpfc_els_handle_rscn(vport);
1644 else {
1645 spin_lock_irq(shost->host_lock);
1646 vport->fc_flag &= ~FC_RSCN_MODE;
1647 spin_unlock_irq(shost->host_lock);
1648 }
1649 }
1650 }
1651
1652 void
1653 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
1654 {
1655 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1656
1657 spin_lock_irq(shost->host_lock);
1658 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1659 spin_unlock_irq(shost->host_lock);
1660 del_timer_sync(&nlp->nlp_delayfunc);
1661 nlp->nlp_last_elscmd = 0;
1662
1663 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1664 list_del_init(&nlp->els_retry_evt.evt_listp);
1665
1666 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
1667 spin_lock_irq(shost->host_lock);
1668 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1669 spin_unlock_irq(shost->host_lock);
1670 if (vport->num_disc_nodes) {
1671 /* Check to see if there are more
1672 * PLOGIs to be sent
1673 */
1674 lpfc_more_plogi(vport);
1675
1676 if (vport->num_disc_nodes == 0) {
1677 spin_lock_irq(shost->host_lock);
1678 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1679 spin_unlock_irq(shost->host_lock);
1680 lpfc_can_disctmo(vport);
1681 lpfc_end_rscn(vport);
1682 }
1683 }
1684 }
1685 return;
1686 }
1687
1688 void
1689 lpfc_els_retry_delay(unsigned long ptr)
1690 {
1691 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
1692 struct lpfc_vport *vport = ndlp->vport;
1693 struct lpfc_hba *phba = vport->phba;
1694 unsigned long flags;
1695 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
1696
1697 ndlp = (struct lpfc_nodelist *) ptr;
1698 phba = ndlp->vport->phba;
1699 evtp = &ndlp->els_retry_evt;
1700
1701 spin_lock_irqsave(&phba->hbalock, flags);
1702 if (!list_empty(&evtp->evt_listp)) {
1703 spin_unlock_irqrestore(&phba->hbalock, flags);
1704 return;
1705 }
1706
1707 evtp->evt_arg1 = ndlp;
1708 evtp->evt = LPFC_EVT_ELS_RETRY;
1709 list_add_tail(&evtp->evt_listp, &phba->work_list);
1710 if (phba->work_wait)
1711 lpfc_worker_wake_up(phba);
1712
1713 spin_unlock_irqrestore(&phba->hbalock, flags);
1714 return;
1715 }
1716
1717 void
1718 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
1719 {
1720 struct lpfc_vport *vport = ndlp->vport;
1721 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1722 uint32_t cmd, did, retry;
1723
1724 spin_lock_irq(shost->host_lock);
1725 did = ndlp->nlp_DID;
1726 cmd = ndlp->nlp_last_elscmd;
1727 ndlp->nlp_last_elscmd = 0;
1728
1729 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1730 spin_unlock_irq(shost->host_lock);
1731 return;
1732 }
1733
1734 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1735 spin_unlock_irq(shost->host_lock);
1736 /*
1737 * If a discovery event readded nlp_delayfunc after timer
1738 * firing and before processing the timer, cancel the
1739 * nlp_delayfunc.
1740 */
1741 del_timer_sync(&ndlp->nlp_delayfunc);
1742 retry = ndlp->nlp_retry;
1743
1744 switch (cmd) {
1745 case ELS_CMD_FLOGI:
1746 lpfc_issue_els_flogi(vport, ndlp, retry);
1747 break;
1748 case ELS_CMD_PLOGI:
1749 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
1750 ndlp->nlp_prev_state = ndlp->nlp_state;
1751 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1752 }
1753 break;
1754 case ELS_CMD_ADISC:
1755 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
1756 ndlp->nlp_prev_state = ndlp->nlp_state;
1757 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1758 }
1759 break;
1760 case ELS_CMD_PRLI:
1761 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
1762 ndlp->nlp_prev_state = ndlp->nlp_state;
1763 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1764 }
1765 break;
1766 case ELS_CMD_LOGO:
1767 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
1768 ndlp->nlp_prev_state = ndlp->nlp_state;
1769 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1770 }
1771 break;
1772 case ELS_CMD_FDISC:
1773 lpfc_issue_els_fdisc(vport, ndlp, retry);
1774 break;
1775 }
1776 return;
1777 }
1778
1779 static int
1780 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1781 struct lpfc_iocbq *rspiocb)
1782 {
1783 struct lpfc_vport *vport = cmdiocb->vport;
1784 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1785 IOCB_t *irsp = &rspiocb->iocb;
1786 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1787 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1788 uint32_t *elscmd;
1789 struct ls_rjt stat;
1790 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
1791 uint32_t cmd = 0;
1792 uint32_t did;
1793
1794
1795 /* Note: context2 may be 0 for internal driver abort
1796 * of delays ELS command.
1797 */
1798
1799 if (pcmd && pcmd->virt) {
1800 elscmd = (uint32_t *) (pcmd->virt);
1801 cmd = *elscmd++;
1802 }
1803
1804 if (ndlp)
1805 did = ndlp->nlp_DID;
1806 else {
1807 /* We should only hit this case for retrying PLOGI */
1808 did = irsp->un.elsreq64.remoteID;
1809 ndlp = lpfc_findnode_did(vport, did);
1810 if (!ndlp && (cmd != ELS_CMD_PLOGI))
1811 return 1;
1812 }
1813
1814 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1815 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
1816 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
1817
1818 switch (irsp->ulpStatus) {
1819 case IOSTAT_FCP_RSP_ERROR:
1820 case IOSTAT_REMOTE_STOP:
1821 break;
1822
1823 case IOSTAT_LOCAL_REJECT:
1824 switch ((irsp->un.ulpWord[4] & 0xff)) {
1825 case IOERR_LOOP_OPEN_FAILURE:
1826 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
1827 delay = 1000;
1828 retry = 1;
1829 break;
1830
1831 case IOERR_ILLEGAL_COMMAND:
1832 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) &&
1833 (cmd == ELS_CMD_FDISC)) {
1834 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
1835 "%d (%d):0124 FDISC failed (3/6) retrying...\n",
1836 phba->brd_no, vport->vpi);
1837 lpfc_mbx_unreg_vpi(vport);
1838 retry = 1;
1839 /* Always retry for this case */
1840 cmdiocb->retry = 0;
1841 }
1842 break;
1843
1844 case IOERR_NO_RESOURCES:
1845 retry = 1;
1846 if (cmdiocb->retry > 100)
1847 delay = 100;
1848 maxretry = 250;
1849 break;
1850
1851 case IOERR_ILLEGAL_FRAME:
1852 delay = 100;
1853 retry = 1;
1854 break;
1855
1856 case IOERR_SEQUENCE_TIMEOUT:
1857 case IOERR_INVALID_RPI:
1858 retry = 1;
1859 break;
1860 }
1861 break;
1862
1863 case IOSTAT_NPORT_RJT:
1864 case IOSTAT_FABRIC_RJT:
1865 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
1866 retry = 1;
1867 break;
1868 }
1869 break;
1870
1871 case IOSTAT_NPORT_BSY:
1872 case IOSTAT_FABRIC_BSY:
1873 retry = 1;
1874 break;
1875
1876 case IOSTAT_LS_RJT:
1877 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
1878 /* Added for Vendor specifc support
1879 * Just keep retrying for these Rsn / Exp codes
1880 */
1881 switch (stat.un.b.lsRjtRsnCode) {
1882 case LSRJT_UNABLE_TPC:
1883 if (stat.un.b.lsRjtRsnCodeExp ==
1884 LSEXP_CMD_IN_PROGRESS) {
1885 if (cmd == ELS_CMD_PLOGI) {
1886 delay = 1000;
1887 maxretry = 48;
1888 }
1889 retry = 1;
1890 break;
1891 }
1892 if (cmd == ELS_CMD_PLOGI) {
1893 delay = 1000;
1894 maxretry = lpfc_max_els_tries + 1;
1895 retry = 1;
1896 break;
1897 }
1898 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1899 (cmd == ELS_CMD_FDISC) &&
1900 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
1901 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
1902 "%d (%d):0125 FDISC Failed (x%x)."
1903 " Fabric out of resources\n",
1904 phba->brd_no, vport->vpi, stat.un.lsRjtError);
1905 lpfc_vport_set_state(vport,
1906 FC_VPORT_NO_FABRIC_RSCS);
1907 }
1908 break;
1909
1910 case LSRJT_LOGICAL_BSY:
1911 if ((cmd == ELS_CMD_PLOGI) ||
1912 (cmd == ELS_CMD_PRLI)) {
1913 delay = 1000;
1914 maxretry = 48;
1915 } else if (cmd == ELS_CMD_FDISC) {
1916 /* Always retry for this case */
1917 cmdiocb->retry = 0;
1918 }
1919 retry = 1;
1920 break;
1921
1922 case LSRJT_LOGICAL_ERR:
1923 case LSRJT_PROTOCOL_ERR:
1924 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1925 (cmd == ELS_CMD_FDISC) &&
1926 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
1927 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
1928 ) {
1929 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
1930 "%d (%d):0123 FDISC Failed (x%x)."
1931 " Fabric Detected Bad WWN\n",
1932 phba->brd_no, vport->vpi, stat.un.lsRjtError);
1933 lpfc_vport_set_state(vport,
1934 FC_VPORT_FABRIC_REJ_WWN);
1935 }
1936 break;
1937 }
1938 break;
1939
1940 case IOSTAT_INTERMED_RSP:
1941 case IOSTAT_BA_RJT:
1942 break;
1943
1944 default:
1945 break;
1946 }
1947
1948 if (did == FDMI_DID)
1949 retry = 1;
1950
1951 if ((++cmdiocb->retry) >= maxretry) {
1952 phba->fc_stat.elsRetryExceeded++;
1953 retry = 0;
1954 }
1955
1956 if ((vport->load_flag & FC_UNLOADING) != 0)
1957 retry = 0;
1958
1959 if (retry) {
1960
1961 /* Retry ELS command <elsCmd> to remote NPORT <did> */
1962 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1963 "%d (%d):0107 Retry ELS command x%x to remote "
1964 "NPORT x%x Data: x%x x%x\n",
1965 phba->brd_no, vport->vpi,
1966 cmd, did, cmdiocb->retry, delay);
1967
1968 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
1969 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1970 ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) {
1971 /* Don't reset timer for no resources */
1972
1973 /* If discovery / RSCN timer is running, reset it */
1974 if (timer_pending(&vport->fc_disctmo) ||
1975 (vport->fc_flag & FC_RSCN_MODE))
1976 lpfc_set_disctmo(vport);
1977 }
1978
1979 phba->fc_stat.elsXmitRetry++;
1980 if (ndlp && delay) {
1981 phba->fc_stat.elsDelayRetry++;
1982 ndlp->nlp_retry = cmdiocb->retry;
1983
1984 /* delay is specified in milliseconds */
1985 mod_timer(&ndlp->nlp_delayfunc,
1986 jiffies + msecs_to_jiffies(delay));
1987 spin_lock_irq(shost->host_lock);
1988 ndlp->nlp_flag |= NLP_DELAY_TMO;
1989 spin_unlock_irq(shost->host_lock);
1990
1991 ndlp->nlp_prev_state = ndlp->nlp_state;
1992 if (cmd == ELS_CMD_PRLI)
1993 lpfc_nlp_set_state(vport, ndlp,
1994 NLP_STE_REG_LOGIN_ISSUE);
1995 else
1996 lpfc_nlp_set_state(vport, ndlp,
1997 NLP_STE_NPR_NODE);
1998 ndlp->nlp_last_elscmd = cmd;
1999
2000 return 1;
2001 }
2002 switch (cmd) {
2003 case ELS_CMD_FLOGI:
2004 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
2005 return 1;
2006 case ELS_CMD_FDISC:
2007 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
2008 return 1;
2009 case ELS_CMD_PLOGI:
2010 if (ndlp) {
2011 ndlp->nlp_prev_state = ndlp->nlp_state;
2012 lpfc_nlp_set_state(vport, ndlp,
2013 NLP_STE_PLOGI_ISSUE);
2014 }
2015 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
2016 return 1;
2017 case ELS_CMD_ADISC:
2018 ndlp->nlp_prev_state = ndlp->nlp_state;
2019 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2020 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
2021 return 1;
2022 case ELS_CMD_PRLI:
2023 ndlp->nlp_prev_state = ndlp->nlp_state;
2024 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
2025 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
2026 return 1;
2027 case ELS_CMD_LOGO:
2028 ndlp->nlp_prev_state = ndlp->nlp_state;
2029 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2030 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
2031 return 1;
2032 }
2033 }
2034
2035 /* No retry ELS command <elsCmd> to remote NPORT <did> */
2036 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2037 "0108 No retry ELS command x%x to remote "
2038 "NPORT x%x Retried:%d Error:x%x/%x\n",
2039 cmd, did, cmdiocb->retry, irsp->ulpStatus,
2040 irsp->un.ulpWord[4]);
2041 return 0;
2042 }
2043
2044 int
2045 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
2046 {
2047 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
2048
2049 if (elsiocb->context1) {
2050 lpfc_nlp_put(elsiocb->context1);
2051 elsiocb->context1 = NULL;
2052 }
2053 /* context2 = cmd, context2->next = rsp, context3 = bpl */
2054 if (elsiocb->context2) {
2055 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
2056 /* Free the response before processing the command. */
2057 if (!list_empty(&buf_ptr1->list)) {
2058 list_remove_head(&buf_ptr1->list, buf_ptr,
2059 struct lpfc_dmabuf,
2060 list);
2061 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
2062 kfree(buf_ptr);
2063 }
2064 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
2065 kfree(buf_ptr1);
2066 }
2067
2068 if (elsiocb->context3) {
2069 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
2070 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
2071 kfree(buf_ptr);
2072 }
2073 lpfc_sli_release_iocbq(phba, elsiocb);
2074 return 0;
2075 }
2076
2077 static void
2078 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2079 struct lpfc_iocbq *rspiocb)
2080 {
2081 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2082 struct lpfc_vport *vport = cmdiocb->vport;
2083 IOCB_t *irsp;
2084
2085 irsp = &rspiocb->iocb;
2086 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2087 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
2088 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
2089
2090 /* ACC to LOGO completes to NPort <nlp_DID> */
2091 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2092 "%d (%d):0109 ACC to LOGO completes to NPort x%x "
2093 "Data: x%x x%x x%x\n",
2094 phba->brd_no, vport->vpi, ndlp->nlp_DID,
2095 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2096
2097 switch (ndlp->nlp_state) {
2098 case NLP_STE_UNUSED_NODE: /* node is just allocated */
2099 lpfc_drop_node(vport, ndlp);
2100 break;
2101 case NLP_STE_NPR_NODE: /* NPort Recovery mode */
2102 lpfc_unreg_rpi(vport, ndlp);
2103 break;
2104 default:
2105 break;
2106 }
2107 lpfc_els_free_iocb(phba, cmdiocb);
2108 return;
2109 }
2110
2111 void
2112 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2113 {
2114 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2115 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2116
2117 pmb->context1 = NULL;
2118 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2119 kfree(mp);
2120 mempool_free(pmb, phba->mbox_mem_pool);
2121 lpfc_nlp_put(ndlp);
2122 return;
2123 }
2124
2125 static void
2126 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2127 struct lpfc_iocbq *rspiocb)
2128 {
2129 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2130 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
2131 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
2132 IOCB_t *irsp;
2133 LPFC_MBOXQ_t *mbox = NULL;
2134 struct lpfc_dmabuf *mp = NULL;
2135
2136 irsp = &rspiocb->iocb;
2137
2138 if (cmdiocb->context_un.mbox)
2139 mbox = cmdiocb->context_un.mbox;
2140
2141 /* Check to see if link went down during discovery */
2142 if (!ndlp || lpfc_els_chk_latt(vport)) {
2143 if (mbox) {
2144 mp = (struct lpfc_dmabuf *) mbox->context1;
2145 if (mp) {
2146 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2147 kfree(mp);
2148 }
2149 mempool_free(mbox, phba->mbox_mem_pool);
2150 }
2151 goto out;
2152 }
2153
2154 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2155 "ACC cmpl: status:x%x/x%x did:x%x",
2156 irsp->ulpStatus, irsp->un.ulpWord[4],
2157 irsp->un.rcvels.remoteID);
2158
2159 /* ELS response tag <ulpIoTag> completes */
2160 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2161 "%d (%d):0110 ELS response tag x%x completes "
2162 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
2163 phba->brd_no, vport->vpi,
2164 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
2165 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
2166 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
2167 ndlp->nlp_rpi);
2168
2169 if (mbox) {
2170 if ((rspiocb->iocb.ulpStatus == 0)
2171 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
2172 lpfc_unreg_rpi(vport, ndlp);
2173 mbox->context2 = lpfc_nlp_get(ndlp);
2174 mbox->vport = vport;
2175 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
2176 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
2177 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
2178 }
2179 else {
2180 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
2181 ndlp->nlp_prev_state = ndlp->nlp_state;
2182 lpfc_nlp_set_state(vport, ndlp,
2183 NLP_STE_REG_LOGIN_ISSUE);
2184 }
2185 if (lpfc_sli_issue_mbox(phba, mbox,
2186 (MBX_NOWAIT | MBX_STOP_IOCB))
2187 != MBX_NOT_FINISHED) {
2188 goto out;
2189 }
2190 lpfc_nlp_put(ndlp);
2191 /* NOTE: we should have messages for unsuccessful
2192 reglogin */
2193 } else {
2194 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
2195 if (!lpfc_error_lost_link(irsp) &&
2196 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
2197 lpfc_drop_node(vport, ndlp);
2198 ndlp = NULL;
2199 }
2200 }
2201 mp = (struct lpfc_dmabuf *) mbox->context1;
2202 if (mp) {
2203 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2204 kfree(mp);
2205 }
2206 mempool_free(mbox, phba->mbox_mem_pool);
2207 }
2208 out:
2209 if (ndlp) {
2210 spin_lock_irq(shost->host_lock);
2211 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
2212 spin_unlock_irq(shost->host_lock);
2213 }
2214 lpfc_els_free_iocb(phba, cmdiocb);
2215 return;
2216 }
2217
2218 int
2219 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
2220 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
2221 LPFC_MBOXQ_t *mbox, uint8_t newnode)
2222 {
2223 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2224 struct lpfc_hba *phba = vport->phba;
2225 IOCB_t *icmd;
2226 IOCB_t *oldcmd;
2227 struct lpfc_iocbq *elsiocb;
2228 struct lpfc_sli_ring *pring;
2229 struct lpfc_sli *psli;
2230 uint8_t *pcmd;
2231 uint16_t cmdsize;
2232 int rc;
2233 ELS_PKT *els_pkt_ptr;
2234
2235 psli = &phba->sli;
2236 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2237 oldcmd = &oldiocb->iocb;
2238
2239 switch (flag) {
2240 case ELS_CMD_ACC:
2241 cmdsize = sizeof(uint32_t);
2242 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
2243 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2244 if (!elsiocb) {
2245 spin_lock_irq(shost->host_lock);
2246 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2247 spin_unlock_irq(shost->host_lock);
2248 return 1;
2249 }
2250
2251 icmd = &elsiocb->iocb;
2252 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2253 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2254 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2255 pcmd += sizeof(uint32_t);
2256
2257 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2258 "Issue ACC: did:x%x flg:x%x",
2259 ndlp->nlp_DID, ndlp->nlp_flag, 0);
2260 break;
2261 case ELS_CMD_PLOGI:
2262 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
2263 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
2264 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2265 if (!elsiocb)
2266 return 1;
2267
2268 icmd = &elsiocb->iocb;
2269 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2270 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2271
2272 if (mbox)
2273 elsiocb->context_un.mbox = mbox;
2274
2275 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2276 pcmd += sizeof(uint32_t);
2277 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
2278
2279 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2280 "Issue ACC PLOGI: did:x%x flg:x%x",
2281 ndlp->nlp_DID, ndlp->nlp_flag, 0);
2282 break;
2283 case ELS_CMD_PRLO:
2284 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
2285 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
2286 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
2287 if (!elsiocb)
2288 return 1;
2289
2290 icmd = &elsiocb->iocb;
2291 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2292 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2293
2294 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
2295 sizeof(uint32_t) + sizeof(PRLO));
2296 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
2297 els_pkt_ptr = (ELS_PKT *) pcmd;
2298 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
2299
2300 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2301 "Issue ACC PRLO: did:x%x flg:x%x",
2302 ndlp->nlp_DID, ndlp->nlp_flag, 0);
2303 break;
2304 default:
2305 return 1;
2306 }
2307
2308 if (newnode) {
2309 lpfc_nlp_put(ndlp);
2310 elsiocb->context1 = NULL;
2311 }
2312
2313 /* Xmit ELS ACC response tag <ulpIoTag> */
2314 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2315 "%d (%d):0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
2316 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n",
2317 phba->brd_no, vport->vpi, elsiocb->iotag,
2318 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2319 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2320
2321 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
2322 spin_lock_irq(shost->host_lock);
2323 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2324 spin_unlock_irq(shost->host_lock);
2325 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
2326 } else {
2327 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
2328 }
2329
2330 phba->fc_stat.elsXmitACC++;
2331 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2332 if (rc == IOCB_ERROR) {
2333 lpfc_els_free_iocb(phba, elsiocb);
2334 return 1;
2335 }
2336 return 0;
2337 }
2338
2339 int
2340 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
2341 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
2342 LPFC_MBOXQ_t *mbox)
2343 {
2344 struct lpfc_hba *phba = vport->phba;
2345 IOCB_t *icmd;
2346 IOCB_t *oldcmd;
2347 struct lpfc_iocbq *elsiocb;
2348 struct lpfc_sli_ring *pring;
2349 struct lpfc_sli *psli;
2350 uint8_t *pcmd;
2351 uint16_t cmdsize;
2352 int rc;
2353
2354 psli = &phba->sli;
2355 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2356
2357 cmdsize = 2 * sizeof(uint32_t);
2358 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
2359 ndlp->nlp_DID, ELS_CMD_LS_RJT);
2360 if (!elsiocb)
2361 return 1;
2362
2363 icmd = &elsiocb->iocb;
2364 oldcmd = &oldiocb->iocb;
2365 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2366 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2367
2368 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
2369 pcmd += sizeof(uint32_t);
2370 *((uint32_t *) (pcmd)) = rejectError;
2371
2372 if (mbox) {
2373 elsiocb->context_un.mbox = mbox;
2374 elsiocb->context1 = lpfc_nlp_get(ndlp);
2375 }
2376
2377 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
2378 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2379 "%d (%d):0129 Xmit ELS RJT x%x response tag x%x "
2380 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
2381 "rpi x%x\n",
2382 phba->brd_no, vport->vpi, rejectError, elsiocb->iotag,
2383 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2384 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2385
2386 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2387 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
2388 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
2389
2390 phba->fc_stat.elsXmitLSRJT++;
2391 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
2392 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2393 if (rc == IOCB_ERROR) {
2394 lpfc_els_free_iocb(phba, elsiocb);
2395 return 1;
2396 }
2397 return 0;
2398 }
2399
2400 int
2401 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
2402 struct lpfc_nodelist *ndlp)
2403 {
2404 struct lpfc_hba *phba = vport->phba;
2405 struct lpfc_sli *psli = &phba->sli;
2406 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
2407 ADISC *ap;
2408 IOCB_t *icmd, *oldcmd;
2409 struct lpfc_iocbq *elsiocb;
2410 uint8_t *pcmd;
2411 uint16_t cmdsize;
2412 int rc;
2413
2414 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
2415 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
2416 ndlp->nlp_DID, ELS_CMD_ACC);
2417 if (!elsiocb)
2418 return 1;
2419
2420 icmd = &elsiocb->iocb;
2421 oldcmd = &oldiocb->iocb;
2422 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2423
2424 /* Xmit ADISC ACC response tag <ulpIoTag> */
2425 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2426 "%d (%d):0130 Xmit ADISC ACC response iotag x%x xri: "
2427 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
2428 phba->brd_no, vport->vpi, elsiocb->iotag,
2429 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2430 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2431
2432 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2433
2434 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2435 pcmd += sizeof(uint32_t);
2436
2437 ap = (ADISC *) (pcmd);
2438 ap->hardAL_PA = phba->fc_pref_ALPA;
2439 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2440 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2441 ap->DID = be32_to_cpu(vport->fc_myDID);
2442
2443 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2444 "Issue ACC ADISC: did:x%x flg:x%x",
2445 ndlp->nlp_DID, ndlp->nlp_flag, 0);
2446
2447 phba->fc_stat.elsXmitACC++;
2448 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
2449 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2450 if (rc == IOCB_ERROR) {
2451 lpfc_els_free_iocb(phba, elsiocb);
2452 return 1;
2453 }
2454 return 0;
2455 }
2456
2457 int
2458 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
2459 struct lpfc_nodelist *ndlp)
2460 {
2461 struct lpfc_hba *phba = vport->phba;
2462 PRLI *npr;
2463 lpfc_vpd_t *vpd;
2464 IOCB_t *icmd;
2465 IOCB_t *oldcmd;
2466 struct lpfc_iocbq *elsiocb;
2467 struct lpfc_sli_ring *pring;
2468 struct lpfc_sli *psli;
2469 uint8_t *pcmd;
2470 uint16_t cmdsize;
2471 int rc;
2472
2473 psli = &phba->sli;
2474 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2475
2476 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
2477 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
2478 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
2479 if (!elsiocb)
2480 return 1;
2481
2482 icmd = &elsiocb->iocb;
2483 oldcmd = &oldiocb->iocb;
2484 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2485
2486 /* Xmit PRLI ACC response tag <ulpIoTag> */
2487 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2488 "%d (%d):0131 Xmit PRLI ACC response tag x%x xri x%x, "
2489 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
2490 phba->brd_no, vport->vpi, elsiocb->iotag,
2491 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2492 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2493
2494 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2495
2496 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
2497 pcmd += sizeof(uint32_t);
2498
2499 /* For PRLI, remainder of payload is PRLI parameter page */
2500 memset(pcmd, 0, sizeof(PRLI));
2501
2502 npr = (PRLI *) pcmd;
2503 vpd = &phba->vpd;
2504 /*
2505 * If our firmware version is 3.20 or later,
2506 * set the following bits for FC-TAPE support.
2507 */
2508 if (vpd->rev.feaLevelHigh >= 0x02) {
2509 npr->ConfmComplAllowed = 1;
2510 npr->Retry = 1;
2511 npr->TaskRetryIdReq = 1;
2512 }
2513
2514 npr->acceptRspCode = PRLI_REQ_EXECUTED;
2515 npr->estabImagePair = 1;
2516 npr->readXferRdyDis = 1;
2517 npr->ConfmComplAllowed = 1;
2518
2519 npr->prliType = PRLI_FCP_TYPE;
2520 npr->initiatorFunc = 1;
2521
2522 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2523 "Issue ACC PRLI: did:x%x flg:x%x",
2524 ndlp->nlp_DID, ndlp->nlp_flag, 0);
2525
2526 phba->fc_stat.elsXmitACC++;
2527 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
2528
2529 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2530 if (rc == IOCB_ERROR) {
2531 lpfc_els_free_iocb(phba, elsiocb);
2532 return 1;
2533 }
2534 return 0;
2535 }
2536
2537 static int
2538 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
2539 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
2540 {
2541 struct lpfc_hba *phba = vport->phba;
2542 RNID *rn;
2543 IOCB_t *icmd, *oldcmd;
2544 struct lpfc_iocbq *elsiocb;
2545 struct lpfc_sli_ring *pring;
2546 struct lpfc_sli *psli;
2547 uint8_t *pcmd;
2548 uint16_t cmdsize;
2549 int rc;
2550
2551 psli = &phba->sli;
2552 pring = &psli->ring[LPFC_ELS_RING];
2553
2554 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
2555 + (2 * sizeof(struct lpfc_name));
2556 if (format)
2557 cmdsize += sizeof(RNID_TOP_DISC);
2558
2559 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
2560 ndlp->nlp_DID, ELS_CMD_ACC);
2561 if (!elsiocb)
2562 return 1;
2563
2564 icmd = &elsiocb->iocb;
2565 oldcmd = &oldiocb->iocb;
2566 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2567
2568 /* Xmit RNID ACC response tag <ulpIoTag> */
2569 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2570 "%d (%d):0132 Xmit RNID ACC response tag x%x "
2571 "xri x%x\n",
2572 phba->brd_no, vport->vpi, elsiocb->iotag,
2573 elsiocb->iocb.ulpContext);
2574
2575 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2576
2577 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2578 pcmd += sizeof(uint32_t);
2579
2580 memset(pcmd, 0, sizeof(RNID));
2581 rn = (RNID *) (pcmd);
2582 rn->Format = format;
2583 rn->CommonLen = (2 * sizeof(struct lpfc_name));
2584 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2585 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2586 switch (format) {
2587 case 0:
2588 rn->SpecificLen = 0;
2589 break;
2590 case RNID_TOPOLOGY_DISC:
2591 rn->SpecificLen = sizeof(RNID_TOP_DISC);
2592 memcpy(&rn->un.topologyDisc.portName,
2593 &vport->fc_portname, sizeof(struct lpfc_name));
2594 rn->un.topologyDisc.unitType = RNID_HBA;
2595 rn->un.topologyDisc.physPort = 0;
2596 rn->un.topologyDisc.attachedNodes = 0;
2597 break;
2598 default:
2599 rn->CommonLen = 0;
2600 rn->SpecificLen = 0;
2601 break;
2602 }
2603
2604 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
2605 "Issue ACC RNID: did:x%x flg:x%x",
2606 ndlp->nlp_DID, ndlp->nlp_flag, 0);
2607
2608 phba->fc_stat.elsXmitACC++;
2609 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
2610 lpfc_nlp_put(ndlp);
2611 elsiocb->context1 = NULL; /* Don't need ndlp for cmpl,
2612 * it could be freed */
2613
2614 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2615 if (rc == IOCB_ERROR) {
2616 lpfc_els_free_iocb(phba, elsiocb);
2617 return 1;
2618 }
2619 return 0;
2620 }
2621
2622 int
2623 lpfc_els_disc_adisc(struct lpfc_vport *vport)
2624 {
2625 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2626 struct lpfc_nodelist *ndlp, *next_ndlp;
2627 int sentadisc = 0;
2628
2629 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2630 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2631 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
2632 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
2633 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
2634 spin_lock_irq(shost->host_lock);
2635 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2636 spin_unlock_irq(shost->host_lock);
2637 ndlp->nlp_prev_state = ndlp->nlp_state;
2638 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2639 lpfc_issue_els_adisc(vport, ndlp, 0);
2640 sentadisc++;
2641 vport->num_disc_nodes++;
2642 if (vport->num_disc_nodes >=
2643 vport->phba->cfg_discovery_threads) {
2644 spin_lock_irq(shost->host_lock);
2645 vport->fc_flag |= FC_NLP_MORE;
2646 spin_unlock_irq(shost->host_lock);
2647 break;
2648 }
2649 }
2650 }
2651 if (sentadisc == 0) {
2652 spin_lock_irq(shost->host_lock);
2653 vport->fc_flag &= ~FC_NLP_MORE;
2654 spin_unlock_irq(shost->host_lock);
2655 }
2656 return sentadisc;
2657 }
2658
2659 int
2660 lpfc_els_disc_plogi(struct lpfc_vport *vport)
2661 {
2662 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2663 struct lpfc_nodelist *ndlp, *next_ndlp;
2664 int sentplogi = 0;
2665
2666 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
2667 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2668 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
2669 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
2670 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
2671 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
2672 ndlp->nlp_prev_state = ndlp->nlp_state;
2673 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2674 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2675 sentplogi++;
2676 vport->num_disc_nodes++;
2677 if (vport->num_disc_nodes >=
2678 vport->phba->cfg_discovery_threads) {
2679 spin_lock_irq(shost->host_lock);
2680 vport->fc_flag |= FC_NLP_MORE;
2681 spin_unlock_irq(shost->host_lock);
2682 break;
2683 }
2684 }
2685 }
2686 if (sentplogi == 0) {
2687 spin_lock_irq(shost->host_lock);
2688 vport->fc_flag &= ~FC_NLP_MORE;
2689 spin_unlock_irq(shost->host_lock);
2690 }
2691 return sentplogi;
2692 }
2693
2694 void
2695 lpfc_els_flush_rscn(struct lpfc_vport *vport)
2696 {
2697 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2698 struct lpfc_hba *phba = vport->phba;
2699 int i;
2700
2701 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
2702 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
2703 vport->fc_rscn_id_list[i] = NULL;
2704 }
2705 spin_lock_irq(shost->host_lock);
2706 vport->fc_rscn_id_cnt = 0;
2707 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
2708 spin_unlock_irq(shost->host_lock);
2709 lpfc_can_disctmo(vport);
2710 }
2711
2712 int
2713 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
2714 {
2715 D_ID ns_did;
2716 D_ID rscn_did;
2717 uint32_t *lp;
2718 uint32_t payload_len, i;
2719 struct lpfc_hba *phba = vport->phba;
2720
2721 ns_did.un.word = did;
2722
2723 /* Never match fabric nodes for RSCNs */
2724 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
2725 return 0;
2726
2727 /* If we are doing a FULL RSCN rediscovery, match everything */
2728 if (vport->fc_flag & FC_RSCN_DISCOVERY)
2729 return did;
2730
2731 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
2732 lp = vport->fc_rscn_id_list[i]->virt;
2733 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
2734 payload_len -= sizeof(uint32_t); /* take off word 0 */
2735 while (payload_len) {
2736 rscn_did.un.word = be32_to_cpu(*lp++);
2737 payload_len -= sizeof(uint32_t);
2738 switch (rscn_did.un.b.resv) {
2739 case 0: /* Single N_Port ID effected */
2740 if (ns_did.un.word == rscn_did.un.word)
2741 return did;
2742 break;
2743 case 1: /* Whole N_Port Area effected */
2744 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
2745 && (ns_did.un.b.area == rscn_did.un.b.area))
2746 return did;
2747 break;
2748 case 2: /* Whole N_Port Domain effected */
2749 if (ns_did.un.b.domain == rscn_did.un.b.domain)
2750 return did;
2751 break;
2752 default:
2753 /* Unknown Identifier in RSCN node */
2754 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2755 "%d (%d):0217 Unknown "
2756 "Identifier in RSCN payload "
2757 "Data: x%x\n",
2758 phba->brd_no, vport->vpi,
2759 rscn_did.un.word);
2760 case 3: /* Whole Fabric effected */
2761 return did;
2762 }
2763 }
2764 }
2765 return 0;
2766 }
2767
2768 static int
2769 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
2770 {
2771 struct lpfc_nodelist *ndlp = NULL;
2772
2773 /* Look at all nodes effected by pending RSCNs and move
2774 * them to NPR state.
2775 */
2776
2777 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2778 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE ||
2779 lpfc_rscn_payload_check(vport, ndlp->nlp_DID) == 0)
2780 continue;
2781
2782 lpfc_disc_state_machine(vport, ndlp, NULL,
2783 NLP_EVT_DEVICE_RECOVERY);
2784
2785 /*
2786 * Make sure NLP_DELAY_TMO is NOT running after a device
2787 * recovery event.
2788 */
2789 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2790 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2791 }
2792
2793 return 0;
2794 }
2795
2796 static int
2797 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
2798 struct lpfc_nodelist *ndlp, uint8_t newnode)
2799 {
2800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2801 struct lpfc_hba *phba = vport->phba;
2802 struct lpfc_dmabuf *pcmd;
2803 uint32_t *lp, *datap;
2804 IOCB_t *icmd;
2805 uint32_t payload_len, length, nportid, *cmd;
2806 int rscn_cnt = vport->fc_rscn_id_cnt;
2807 int rscn_id = 0, hba_id = 0;
2808 int i;
2809
2810 icmd = &cmdiocb->iocb;
2811 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2812 lp = (uint32_t *) pcmd->virt;
2813
2814 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
2815 payload_len -= sizeof(uint32_t); /* take off word 0 */
2816
2817 /* RSCN received */
2818 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2819 "%d (%d):0214 RSCN received Data: x%x x%x x%x x%x\n",
2820 phba->brd_no, vport->vpi, vport->fc_flag, payload_len,
2821 *lp, rscn_cnt);
2822
2823 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
2824 fc_host_post_event(shost, fc_get_event_number(),
2825 FCH_EVT_RSCN, lp[i]);
2826
2827 /* If we are about to begin discovery, just ACC the RSCN.
2828 * Discovery processing will satisfy it.
2829 */
2830 if (vport->port_state <= LPFC_NS_QRY) {
2831 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
2832 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
2833 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
2834
2835 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2836 newnode);
2837 return 0;
2838 }
2839
2840 /* If this RSCN just contains NPortIDs for other vports on this HBA,
2841 * just ACC and ignore it.
2842 */
2843 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2844 !(phba->cfg_peer_port_login)) {
2845 i = payload_len;
2846 datap = lp;
2847 while (i > 0) {
2848 nportid = *datap++;
2849 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
2850 i -= sizeof(uint32_t);
2851 rscn_id++;
2852 if (lpfc_find_vport_by_did(phba, nportid))
2853 hba_id++;
2854 }
2855 if (rscn_id == hba_id) {
2856 /* ALL NPortIDs in RSCN are on HBA */
2857 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2858 "%d (%d):0214 Ignore RSCN Data: x%x x%x x%x x%x\n",
2859 phba->brd_no, vport->vpi, vport->fc_flag, payload_len,
2860 *lp, rscn_cnt);
2861
2862 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
2863 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
2864 ndlp->nlp_DID, vport->port_state,
2865 ndlp->nlp_flag);
2866
2867 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
2868 ndlp, NULL, newnode);
2869 return 0;
2870 }
2871 }
2872
2873 /* If we are already processing an RSCN, save the received
2874 * RSCN payload buffer, cmdiocb->context2 to process later.
2875 */
2876 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
2877 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
2878 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
2879 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
2880
2881 vport->fc_flag |= FC_RSCN_DEFERRED;
2882 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
2883 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
2884 spin_lock_irq(shost->host_lock);
2885 vport->fc_flag |= FC_RSCN_MODE;
2886 spin_unlock_irq(shost->host_lock);
2887 if (rscn_cnt) {
2888 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
2889 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
2890 }
2891 if ((rscn_cnt) &&
2892 (payload_len + length <= LPFC_BPL_SIZE)) {
2893 *cmd &= ELS_CMD_MASK;
2894 *cmd |= be32_to_cpu(payload_len + length);
2895 memcpy(((uint8_t *)cmd) + length, lp,
2896 payload_len);
2897 } else {
2898 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
2899 vport->fc_rscn_id_cnt++;
2900 /* If we zero, cmdiocb->context2, the calling
2901 * routine will not try to free it.
2902 */
2903 cmdiocb->context2 = NULL;
2904 }
2905
2906 /* Deferred RSCN */
2907 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2908 "%d (%d):0235 Deferred RSCN "
2909 "Data: x%x x%x x%x\n",
2910 phba->brd_no, vport->vpi,
2911 vport->fc_rscn_id_cnt, vport->fc_flag,
2912 vport->port_state);
2913 } else {
2914 spin_lock_irq(shost->host_lock);
2915 vport->fc_flag |= FC_RSCN_DISCOVERY;
2916 spin_unlock_irq(shost->host_lock);
2917 /* ReDiscovery RSCN */
2918 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2919 "%d (%d):0234 ReDiscovery RSCN "
2920 "Data: x%x x%x x%x\n",
2921 phba->brd_no, vport->vpi,
2922 vport->fc_rscn_id_cnt, vport->fc_flag,
2923 vport->port_state);
2924 }
2925 /* Send back ACC */
2926 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2927 newnode);
2928
2929 /* send RECOVERY event for ALL nodes that match RSCN payload */
2930 lpfc_rscn_recovery_check(vport);
2931 vport->fc_flag &= ~FC_RSCN_DEFERRED;
2932 return 0;
2933 }
2934
2935 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
2936 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
2937 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
2938
2939 spin_lock_irq(shost->host_lock);
2940 vport->fc_flag |= FC_RSCN_MODE;
2941 spin_unlock_irq(shost->host_lock);
2942 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
2943 /*
2944 * If we zero, cmdiocb->context2, the calling routine will
2945 * not try to free it.
2946 */
2947 cmdiocb->context2 = NULL;
2948
2949 lpfc_set_disctmo(vport);
2950
2951 /* Send back ACC */
2952 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode);
2953
2954 /* send RECOVERY event for ALL nodes that match RSCN payload */
2955 lpfc_rscn_recovery_check(vport);
2956
2957 return lpfc_els_handle_rscn(vport);
2958 }
2959
2960 int
2961 lpfc_els_handle_rscn(struct lpfc_vport *vport)
2962 {
2963 struct lpfc_nodelist *ndlp;
2964 struct lpfc_hba *phba = vport->phba;
2965
2966 /* Ignore RSCN if the port is being torn down. */
2967 if (vport->load_flag & FC_UNLOADING) {
2968 lpfc_els_flush_rscn(vport);
2969 return 0;
2970 }
2971
2972 /* Start timer for RSCN processing */
2973 lpfc_set_disctmo(vport);
2974
2975 /* RSCN processed */
2976 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2977 "%d (%d):0215 RSCN processed Data: x%x x%x x%x x%x\n",
2978 phba->brd_no, vport->vpi,
2979 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
2980 vport->port_state);
2981
2982 /* To process RSCN, first compare RSCN data with NameServer */
2983 vport->fc_ns_retry = 0;
2984 ndlp = lpfc_findnode_did(vport, NameServer_DID);
2985 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
2986 /* Good ndlp, issue CT Request to NameServer */
2987 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
2988 /* Wait for NameServer query cmpl before we can
2989 continue */
2990 return 1;
2991 } else {
2992 /* If login to NameServer does not exist, issue one */
2993 /* Good status, issue PLOGI to NameServer */
2994 ndlp = lpfc_findnode_did(vport, NameServer_DID);
2995 if (ndlp)
2996 /* Wait for NameServer login cmpl before we can
2997 continue */
2998 return 1;
2999
3000 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3001 if (!ndlp) {
3002 lpfc_els_flush_rscn(vport);
3003 return 0;
3004 } else {
3005 lpfc_nlp_init(vport, ndlp, NameServer_DID);
3006 ndlp->nlp_type |= NLP_FABRIC;
3007 ndlp->nlp_prev_state = ndlp->nlp_state;
3008 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3009 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
3010 /* Wait for NameServer login cmpl before we can
3011 continue */
3012 return 1;
3013 }
3014 }
3015
3016 lpfc_els_flush_rscn(vport);
3017 return 0;
3018 }
3019
3020 static int
3021 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3022 struct lpfc_nodelist *ndlp, uint8_t newnode)
3023 {
3024 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3025 struct lpfc_hba *phba = vport->phba;
3026 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3027 uint32_t *lp = (uint32_t *) pcmd->virt;
3028 IOCB_t *icmd = &cmdiocb->iocb;
3029 struct serv_parm *sp;
3030 LPFC_MBOXQ_t *mbox;
3031 struct ls_rjt stat;
3032 uint32_t cmd, did;
3033 int rc;
3034
3035 cmd = *lp++;
3036 sp = (struct serv_parm *) lp;
3037
3038 /* FLOGI received */
3039
3040 lpfc_set_disctmo(vport);
3041
3042 if (phba->fc_topology == TOPOLOGY_LOOP) {
3043 /* We should never receive a FLOGI in loop mode, ignore it */
3044 did = icmd->un.elsreq64.remoteID;
3045
3046 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
3047 Loop Mode */
3048 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3049 "%d (%d):0113 An FLOGI ELS command x%x was "
3050 "received from DID x%x in Loop Mode\n",
3051 phba->brd_no, vport->vpi, cmd, did);
3052 return 1;
3053 }
3054
3055 did = Fabric_DID;
3056
3057 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3))) {
3058 /* For a FLOGI we accept, then if our portname is greater
3059 * then the remote portname we initiate Nport login.
3060 */
3061
3062 rc = memcmp(&vport->fc_portname, &sp->portName,
3063 sizeof(struct lpfc_name));
3064
3065 if (!rc) {
3066 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3067 if (!mbox)
3068 return 1;
3069
3070 lpfc_linkdown(phba);
3071 lpfc_init_link(phba, mbox,
3072 phba->cfg_topology,
3073 phba->cfg_link_speed);
3074 mbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
3075 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3076 mbox->vport = vport;
3077 rc = lpfc_sli_issue_mbox
3078 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
3079 lpfc_set_loopback_flag(phba);
3080 if (rc == MBX_NOT_FINISHED) {
3081 mempool_free(mbox, phba->mbox_mem_pool);
3082 }
3083 return 1;
3084 } else if (rc > 0) { /* greater than */
3085 spin_lock_irq(shost->host_lock);
3086 vport->fc_flag |= FC_PT2PT_PLOGI;
3087 spin_unlock_irq(shost->host_lock);
3088 }
3089 spin_lock_irq(shost->host_lock);
3090 vport->fc_flag |= FC_PT2PT;
3091 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3092 spin_unlock_irq(shost->host_lock);
3093 } else {
3094 /* Reject this request because invalid parameters */
3095 stat.un.b.lsRjtRsvd0 = 0;
3096 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3097 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
3098 stat.un.b.vendorUnique = 0;
3099 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
3100 NULL);
3101 return 1;
3102 }
3103
3104 /* Send back ACC */
3105 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode);
3106
3107 return 0;
3108 }
3109
3110 static int
3111 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3112 struct lpfc_nodelist *ndlp)
3113 {
3114 struct lpfc_dmabuf *pcmd;
3115 uint32_t *lp;
3116 IOCB_t *icmd;
3117 RNID *rn;
3118 struct ls_rjt stat;
3119 uint32_t cmd, did;
3120
3121 icmd = &cmdiocb->iocb;
3122 did = icmd->un.elsreq64.remoteID;
3123 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3124 lp = (uint32_t *) pcmd->virt;
3125
3126 cmd = *lp++;
3127 rn = (RNID *) lp;
3128
3129 /* RNID received */
3130
3131 switch (rn->Format) {
3132 case 0:
3133 case RNID_TOPOLOGY_DISC:
3134 /* Send back ACC */
3135 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
3136 break;
3137 default:
3138 /* Reject this request because format not supported */
3139 stat.un.b.lsRjtRsvd0 = 0;
3140 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3141 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3142 stat.un.b.vendorUnique = 0;
3143 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
3144 NULL);
3145 }
3146 return 0;
3147 }
3148
3149 static int
3150 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3151 struct lpfc_nodelist *ndlp)
3152 {
3153 struct ls_rjt stat;
3154
3155 /* For now, unconditionally reject this command */
3156 stat.un.b.lsRjtRsvd0 = 0;
3157 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3158 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3159 stat.un.b.vendorUnique = 0;
3160 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
3161 return 0;
3162 }
3163
3164 static void
3165 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3166 {
3167 struct lpfc_sli *psli = &phba->sli;
3168 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
3169 MAILBOX_t *mb;
3170 IOCB_t *icmd;
3171 RPS_RSP *rps_rsp;
3172 uint8_t *pcmd;
3173 struct lpfc_iocbq *elsiocb;
3174 struct lpfc_nodelist *ndlp;
3175 uint16_t xri, status;
3176 uint32_t cmdsize;
3177
3178 mb = &pmb->mb;
3179
3180 ndlp = (struct lpfc_nodelist *) pmb->context2;
3181 xri = (uint16_t) ((unsigned long)(pmb->context1));
3182 pmb->context1 = NULL;
3183 pmb->context2 = NULL;
3184
3185 if (mb->mbxStatus) {
3186 mempool_free(pmb, phba->mbox_mem_pool);
3187 return;
3188 }
3189
3190 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
3191 mempool_free(pmb, phba->mbox_mem_pool);
3192 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
3193 lpfc_max_els_tries, ndlp,
3194 ndlp->nlp_DID, ELS_CMD_ACC);
3195 lpfc_nlp_put(ndlp);
3196 if (!elsiocb)
3197 return;
3198
3199 icmd = &elsiocb->iocb;
3200 icmd->ulpContext = xri;
3201
3202 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3203 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3204 pcmd += sizeof(uint32_t); /* Skip past command */
3205 rps_rsp = (RPS_RSP *)pcmd;
3206
3207 if (phba->fc_topology != TOPOLOGY_LOOP)
3208 status = 0x10;
3209 else
3210 status = 0x8;
3211 if (phba->pport->fc_flag & FC_FABRIC)
3212 status |= 0x4;
3213
3214 rps_rsp->rsvd1 = 0;
3215 rps_rsp->portStatus = be16_to_cpu(status);
3216 rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt);
3217 rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt);
3218 rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt);
3219 rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt);
3220 rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord);
3221 rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt);
3222
3223 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
3224 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3225 "%d (%d):0118 Xmit ELS RPS ACC response tag x%x "
3226 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
3227 "rpi x%x\n",
3228 phba->brd_no, ndlp->vport->vpi, elsiocb->iotag,
3229 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
3230 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
3231
3232 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
3233 phba->fc_stat.elsXmitACC++;
3234 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR)
3235 lpfc_els_free_iocb(phba, elsiocb);
3236 return;
3237 }
3238
3239 static int
3240 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3241 struct lpfc_nodelist *ndlp)
3242 {
3243 struct lpfc_hba *phba = vport->phba;
3244 uint32_t *lp;
3245 uint8_t flag;
3246 LPFC_MBOXQ_t *mbox;
3247 struct lpfc_dmabuf *pcmd;
3248 RPS *rps;
3249 struct ls_rjt stat;
3250
3251 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3252 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
3253 stat.un.b.lsRjtRsvd0 = 0;
3254 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3255 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3256 stat.un.b.vendorUnique = 0;
3257 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
3258 NULL);
3259 }
3260
3261 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3262 lp = (uint32_t *) pcmd->virt;
3263 flag = (be32_to_cpu(*lp++) & 0xf);
3264 rps = (RPS *) lp;
3265
3266 if ((flag == 0) ||
3267 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
3268 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
3269 sizeof(struct lpfc_name)) == 0))) {
3270
3271 printk("Fix me....\n");
3272 dump_stack();
3273 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
3274 if (mbox) {
3275 lpfc_read_lnk_stat(phba, mbox);
3276 mbox->context1 =
3277 (void *)((unsigned long) cmdiocb->iocb.ulpContext);
3278 mbox->context2 = lpfc_nlp_get(ndlp);
3279 mbox->vport = vport;
3280 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
3281 if (lpfc_sli_issue_mbox (phba, mbox,
3282 (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED)
3283 /* Mbox completion will send ELS Response */
3284 return 0;
3285
3286 lpfc_nlp_put(ndlp);
3287 mempool_free(mbox, phba->mbox_mem_pool);
3288 }
3289 }
3290 stat.un.b.lsRjtRsvd0 = 0;
3291 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3292 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3293 stat.un.b.vendorUnique = 0;
3294 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
3295 return 0;
3296 }
3297
3298 static int
3299 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
3300 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
3301 {
3302 struct lpfc_hba *phba = vport->phba;
3303 IOCB_t *icmd, *oldcmd;
3304 RPL_RSP rpl_rsp;
3305 struct lpfc_iocbq *elsiocb;
3306 struct lpfc_sli *psli = &phba->sli;
3307 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
3308 uint8_t *pcmd;
3309
3310 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
3311 ndlp->nlp_DID, ELS_CMD_ACC);
3312
3313 if (!elsiocb)
3314 return 1;
3315
3316 icmd = &elsiocb->iocb;
3317 oldcmd = &oldiocb->iocb;
3318 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
3319
3320 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3321 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3322 pcmd += sizeof(uint16_t);
3323 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
3324 pcmd += sizeof(uint16_t);
3325
3326 /* Setup the RPL ACC payload */
3327 rpl_rsp.listLen = be32_to_cpu(1);
3328 rpl_rsp.index = 0;
3329 rpl_rsp.port_num_blk.portNum = 0;
3330 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
3331 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
3332 sizeof(struct lpfc_name));
3333
3334 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
3335
3336
3337 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
3338 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3339 "%d (%d):0120 Xmit ELS RPL ACC response tag x%x "
3340 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
3341 "rpi x%x\n",
3342 phba->brd_no, vport->vpi, elsiocb->iotag,
3343 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
3344 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
3345
3346 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
3347
3348 phba->fc_stat.elsXmitACC++;
3349 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
3350 lpfc_els_free_iocb(phba, elsiocb);
3351 return 1;
3352 }
3353 return 0;
3354 }
3355
3356 static int
3357 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3358 struct lpfc_nodelist *ndlp)
3359 {
3360 struct lpfc_dmabuf *pcmd;
3361 uint32_t *lp;
3362 uint32_t maxsize;
3363 uint16_t cmdsize;
3364 RPL *rpl;
3365 struct ls_rjt stat;
3366
3367 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3368 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
3369 stat.un.b.lsRjtRsvd0 = 0;
3370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3371 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3372 stat.un.b.vendorUnique = 0;
3373 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
3374 NULL);
3375 }
3376
3377 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3378 lp = (uint32_t *) pcmd->virt;
3379 rpl = (RPL *) (lp + 1);
3380
3381 maxsize = be32_to_cpu(rpl->maxsize);
3382
3383 /* We support only one port */
3384 if ((rpl->index == 0) &&
3385 ((maxsize == 0) ||
3386 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
3387 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
3388 } else {
3389 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
3390 }
3391 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
3392
3393 return 0;
3394 }
3395
3396 static int
3397 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3398 struct lpfc_nodelist *ndlp)
3399 {
3400 struct lpfc_hba *phba = vport->phba;
3401 struct lpfc_dmabuf *pcmd;
3402 uint32_t *lp;
3403 IOCB_t *icmd;
3404 FARP *fp;
3405 uint32_t cmd, cnt, did;
3406
3407 icmd = &cmdiocb->iocb;
3408 did = icmd->un.elsreq64.remoteID;
3409 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3410 lp = (uint32_t *) pcmd->virt;
3411
3412 cmd = *lp++;
3413 fp = (FARP *) lp;
3414
3415 /* FARP-REQ received from DID <did> */
3416 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3417 "%d (%d):0601 FARP-REQ received from DID x%x\n",
3418 phba->brd_no, vport->vpi, did);
3419
3420 /* We will only support match on WWPN or WWNN */
3421 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
3422 return 0;
3423 }
3424
3425 cnt = 0;
3426 /* If this FARP command is searching for my portname */
3427 if (fp->Mflags & FARP_MATCH_PORT) {
3428 if (memcmp(&fp->RportName, &vport->fc_portname,
3429 sizeof(struct lpfc_name)) == 0)
3430 cnt = 1;
3431 }
3432
3433 /* If this FARP command is searching for my nodename */
3434 if (fp->Mflags & FARP_MATCH_NODE) {
3435 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
3436 sizeof(struct lpfc_name)) == 0)
3437 cnt = 1;
3438 }
3439
3440 if (cnt) {
3441 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
3442 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
3443 /* Log back into the node before sending the FARP. */
3444 if (fp->Rflags & FARP_REQUEST_PLOGI) {
3445 ndlp->nlp_prev_state = ndlp->nlp_state;
3446 lpfc_nlp_set_state(vport, ndlp,
3447 NLP_STE_PLOGI_ISSUE);
3448 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
3449 }
3450
3451 /* Send a FARP response to that node */
3452 if (fp->Rflags & FARP_REQUEST_FARPR)
3453 lpfc_issue_els_farpr(vport, did, 0);
3454 }
3455 }
3456 return 0;
3457 }
3458
3459 static int
3460 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3461 struct lpfc_nodelist *ndlp)
3462 {
3463 struct lpfc_dmabuf *pcmd;
3464 uint32_t *lp;
3465 IOCB_t *icmd;
3466 uint32_t cmd, did;
3467 struct lpfc_hba *phba = vport->phba;
3468
3469 icmd = &cmdiocb->iocb;
3470 did = icmd->un.elsreq64.remoteID;
3471 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3472 lp = (uint32_t *) pcmd->virt;
3473
3474 cmd = *lp++;
3475 /* FARP-RSP received from DID <did> */
3476 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3477 "%d (%d):0600 FARP-RSP received from DID x%x\n",
3478 phba->brd_no, vport->vpi, did);
3479 /* ACCEPT the Farp resp request */
3480 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
3481
3482 return 0;
3483 }
3484
3485 static int
3486 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3487 struct lpfc_nodelist *fan_ndlp)
3488 {
3489 struct lpfc_dmabuf *pcmd;
3490 uint32_t *lp;
3491 IOCB_t *icmd;
3492 uint32_t cmd, did;
3493 FAN *fp;
3494 struct lpfc_nodelist *ndlp, *next_ndlp;
3495 struct lpfc_hba *phba = vport->phba;
3496
3497 /* FAN received */
3498 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3499 "%d (%d):0265 FAN received\n",
3500 phba->brd_no, vport->vpi);
3501
3502 icmd = &cmdiocb->iocb;
3503 did = icmd->un.elsreq64.remoteID;
3504 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
3505 lp = (uint32_t *)pcmd->virt;
3506
3507 cmd = *lp++;
3508 fp = (FAN *) lp;
3509
3510 /* FAN received; Fan does not have a reply sequence */
3511
3512 if (phba->pport->port_state == LPFC_LOCAL_CFG_LINK) {
3513 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
3514 sizeof(struct lpfc_name)) != 0) ||
3515 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
3516 sizeof(struct lpfc_name)) != 0)) {
3517 /*
3518 * This node has switched fabrics. FLOGI is required
3519 * Clean up the old rpi's
3520 */
3521
3522 list_for_each_entry_safe(ndlp, next_ndlp,
3523 &vport->fc_nodes, nlp_listp) {
3524 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
3525 continue;
3526 if (ndlp->nlp_type & NLP_FABRIC) {
3527 /*
3528 * Clean up old Fabric, Nameserver and
3529 * other NLP_FABRIC logins
3530 */
3531 lpfc_drop_node(vport, ndlp);
3532 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
3533 /* Fail outstanding I/O now since this
3534 * device is marked for PLOGI
3535 */
3536 lpfc_unreg_rpi(vport, ndlp);
3537 }
3538 }
3539
3540 vport->port_state = LPFC_FLOGI;
3541 lpfc_set_disctmo(vport);
3542 lpfc_initial_flogi(vport);
3543 return 0;
3544 }
3545 /* Discovery not needed,
3546 * move the nodes to their original state.
3547 */
3548 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3549 nlp_listp) {
3550 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
3551 continue;
3552
3553 switch (ndlp->nlp_prev_state) {
3554 case NLP_STE_UNMAPPED_NODE:
3555 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
3556 lpfc_nlp_set_state(vport, ndlp,
3557 NLP_STE_UNMAPPED_NODE);
3558 break;
3559
3560 case NLP_STE_MAPPED_NODE:
3561 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
3562 lpfc_nlp_set_state(vport, ndlp,
3563 NLP_STE_MAPPED_NODE);
3564 break;
3565
3566 default:
3567 break;
3568 }
3569 }
3570
3571 /* Start discovery - this should just do CLEAR_LA */
3572 lpfc_disc_start(vport);
3573 }
3574 return 0;
3575 }
3576
3577 void
3578 lpfc_els_timeout(unsigned long ptr)
3579 {
3580 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
3581 struct lpfc_hba *phba = vport->phba;
3582 unsigned long iflag;
3583
3584 spin_lock_irqsave(&vport->work_port_lock, iflag);
3585 if ((vport->work_port_events & WORKER_ELS_TMO) == 0) {
3586 vport->work_port_events |= WORKER_ELS_TMO;
3587 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
3588
3589 spin_lock_irqsave(&phba->hbalock, iflag);
3590 if (phba->work_wait)
3591 lpfc_worker_wake_up(phba);
3592 spin_unlock_irqrestore(&phba->hbalock, iflag);
3593 }
3594 else
3595 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
3596 return;
3597 }
3598
3599 void
3600 lpfc_els_timeout_handler(struct lpfc_vport *vport)
3601 {
3602 struct lpfc_hba *phba = vport->phba;
3603 struct lpfc_sli_ring *pring;
3604 struct lpfc_iocbq *tmp_iocb, *piocb;
3605 IOCB_t *cmd = NULL;
3606 struct lpfc_dmabuf *pcmd;
3607 uint32_t els_command = 0;
3608 uint32_t timeout;
3609 uint32_t remote_ID = 0xffffffff;
3610
3611 /* If the timer is already canceled do nothing */
3612 if ((vport->work_port_events & WORKER_ELS_TMO) == 0) {
3613 return;
3614 }
3615 spin_lock_irq(&phba->hbalock);
3616 timeout = (uint32_t)(phba->fc_ratov << 1);
3617
3618 pring = &phba->sli.ring[LPFC_ELS_RING];
3619
3620 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3621 cmd = &piocb->iocb;
3622
3623 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
3624 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
3625 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
3626 continue;
3627
3628 if (piocb->vport != vport)
3629 continue;
3630
3631 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3632 if (pcmd)
3633 els_command = *(uint32_t *) (pcmd->virt);
3634
3635 if (els_command == ELS_CMD_FARP ||
3636 els_command == ELS_CMD_FARPR ||
3637 els_command == ELS_CMD_FDISC)
3638 continue;
3639
3640 if (vport != piocb->vport)
3641 continue;
3642
3643 if (piocb->drvrTimeout > 0) {
3644 if (piocb->drvrTimeout >= timeout)
3645 piocb->drvrTimeout -= timeout;
3646 else
3647 piocb->drvrTimeout = 0;
3648 continue;
3649 }
3650
3651 remote_ID = 0xffffffff;
3652 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
3653 remote_ID = cmd->un.elsreq64.remoteID;
3654 else {
3655 struct lpfc_nodelist *ndlp;
3656 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
3657 if (ndlp)
3658 remote_ID = ndlp->nlp_DID;
3659 }
3660
3661 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3662 "%d (%d):0127 ELS timeout Data: x%x x%x x%x "
3663 "x%x\n",
3664 phba->brd_no, vport->vpi, els_command,
3665 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
3666
3667 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
3668 }
3669 spin_unlock_irq(&phba->hbalock);
3670
3671 if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt)
3672 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
3673 }
3674
3675 void
3676 lpfc_els_flush_cmd(struct lpfc_vport *vport)
3677 {
3678 LIST_HEAD(completions);
3679 struct lpfc_hba *phba = vport->phba;
3680 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3681 struct lpfc_iocbq *tmp_iocb, *piocb;
3682 IOCB_t *cmd = NULL;
3683
3684 lpfc_fabric_abort_vport(vport);
3685
3686 spin_lock_irq(&phba->hbalock);
3687 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
3688 cmd = &piocb->iocb;
3689
3690 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3691 continue;
3692 }
3693
3694 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
3695 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
3696 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
3697 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
3698 cmd->ulpCommand == CMD_ABORT_XRI_CN)
3699 continue;
3700
3701 if (piocb->vport != vport)
3702 continue;
3703
3704 list_move_tail(&piocb->list, &completions);
3705 pring->txq_cnt--;
3706 }
3707
3708 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3709 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3710 continue;
3711 }
3712
3713 if (piocb->vport != vport)
3714 continue;
3715
3716 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
3717 }
3718 spin_unlock_irq(&phba->hbalock);
3719
3720 while (!list_empty(&completions)) {
3721 piocb = list_get_first(&completions, struct lpfc_iocbq, list);
3722 cmd = &piocb->iocb;
3723 list_del_init(&piocb->list);
3724
3725 if (!piocb->iocb_cmpl)
3726 lpfc_sli_release_iocbq(phba, piocb);
3727 else {
3728 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3729 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3730 (piocb->iocb_cmpl) (phba, piocb, piocb);
3731 }
3732 }
3733
3734 return;
3735 }
3736
3737 void
3738 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
3739 {
3740 LIST_HEAD(completions);
3741 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3742 struct lpfc_iocbq *tmp_iocb, *piocb;
3743 IOCB_t *cmd = NULL;
3744
3745 lpfc_fabric_abort_hba(phba);
3746 spin_lock_irq(&phba->hbalock);
3747 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
3748 cmd = &piocb->iocb;
3749 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
3750 continue;
3751 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
3752 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
3753 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
3754 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
3755 cmd->ulpCommand == CMD_ABORT_XRI_CN)
3756 continue;
3757 list_move_tail(&piocb->list, &completions);
3758 pring->txq_cnt--;
3759 }
3760 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3761 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
3762 continue;
3763 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
3764 }
3765 spin_unlock_irq(&phba->hbalock);
3766 while (!list_empty(&completions)) {
3767 piocb = list_get_first(&completions, struct lpfc_iocbq, list);
3768 cmd = &piocb->iocb;
3769 list_del_init(&piocb->list);
3770 if (!piocb->iocb_cmpl)
3771 lpfc_sli_release_iocbq(phba, piocb);
3772 else {
3773 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3774 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3775 (piocb->iocb_cmpl) (phba, piocb, piocb);
3776 }
3777 }
3778 return;
3779 }
3780
3781 static void
3782 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3783 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
3784 {
3785 struct lpfc_nodelist *ndlp;
3786 struct ls_rjt stat;
3787 uint32_t *payload;
3788 uint32_t cmd, did, newnode, rjt_err = 0;
3789 IOCB_t *icmd = &elsiocb->iocb;
3790
3791 if (vport == NULL || elsiocb->context2 == NULL)
3792 goto dropit;
3793
3794 newnode = 0;
3795 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
3796 cmd = *payload;
3797 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
3798 lpfc_post_buffer(phba, pring, 1, 1);
3799
3800 did = icmd->un.rcvels.remoteID;
3801 if (icmd->ulpStatus) {
3802 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3803 "RCV Unsol ELS: status:x%x/x%x did:x%x",
3804 icmd->ulpStatus, icmd->un.ulpWord[4], did);
3805 goto dropit;
3806 }
3807
3808 /* Check to see if link went down during discovery */
3809 if (lpfc_els_chk_latt(vport))
3810 goto dropit;
3811
3812 /* Ignore traffic recevied during vport shutdown. */
3813 if (vport->load_flag & FC_UNLOADING)
3814 goto dropit;
3815
3816 ndlp = lpfc_findnode_did(vport, did);
3817 if (!ndlp) {
3818 /* Cannot find existing Fabric ndlp, so allocate a new one */
3819 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3820 if (!ndlp)
3821 goto dropit;
3822
3823 lpfc_nlp_init(vport, ndlp, did);
3824 newnode = 1;
3825 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) {
3826 ndlp->nlp_type |= NLP_FABRIC;
3827 }
3828 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
3829 }
3830
3831 phba->fc_stat.elsRcvFrame++;
3832 if (elsiocb->context1)
3833 lpfc_nlp_put(elsiocb->context1);
3834 elsiocb->context1 = lpfc_nlp_get(ndlp);
3835 elsiocb->vport = vport;
3836
3837 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
3838 cmd &= ELS_CMD_MASK;
3839 }
3840 /* ELS command <elsCmd> received from NPORT <did> */
3841 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3842 "%d (%d):0112 ELS command x%x received from NPORT x%x "
3843 "Data: x%x\n", phba->brd_no, vport->vpi, cmd, did,
3844 vport->port_state);
3845
3846 switch (cmd) {
3847 case ELS_CMD_PLOGI:
3848 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3849 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
3850 did, vport->port_state, ndlp->nlp_flag);
3851
3852 phba->fc_stat.elsRcvPLOGI++;
3853 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
3854
3855 if (vport->port_state < LPFC_DISC_AUTH) {
3856 rjt_err = LSRJT_UNABLE_TPC;
3857 break;
3858 }
3859 lpfc_disc_state_machine(vport, ndlp, elsiocb,
3860 NLP_EVT_RCV_PLOGI);
3861
3862 break;
3863 case ELS_CMD_FLOGI:
3864 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3865 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
3866 did, vport->port_state, ndlp->nlp_flag);
3867
3868 phba->fc_stat.elsRcvFLOGI++;
3869 lpfc_els_rcv_flogi(vport, elsiocb, ndlp, newnode);
3870 if (newnode)
3871 lpfc_drop_node(vport, ndlp);
3872 break;
3873 case ELS_CMD_LOGO:
3874 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3875 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
3876 did, vport->port_state, ndlp->nlp_flag);
3877
3878 phba->fc_stat.elsRcvLOGO++;
3879 if (vport->port_state < LPFC_DISC_AUTH) {
3880 rjt_err = LSRJT_UNABLE_TPC;
3881 break;
3882 }
3883 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
3884 break;
3885 case ELS_CMD_PRLO:
3886 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3887 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
3888 did, vport->port_state, ndlp->nlp_flag);
3889
3890 phba->fc_stat.elsRcvPRLO++;
3891 if (vport->port_state < LPFC_DISC_AUTH) {
3892 rjt_err = LSRJT_UNABLE_TPC;
3893 break;
3894 }
3895 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
3896 break;
3897 case ELS_CMD_RSCN:
3898 phba->fc_stat.elsRcvRSCN++;
3899 lpfc_els_rcv_rscn(vport, elsiocb, ndlp, newnode);
3900 if (newnode)
3901 lpfc_drop_node(vport, ndlp);
3902 break;
3903 case ELS_CMD_ADISC:
3904 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3905 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
3906 did, vport->port_state, ndlp->nlp_flag);
3907
3908 phba->fc_stat.elsRcvADISC++;
3909 if (vport->port_state < LPFC_DISC_AUTH) {
3910 rjt_err = LSRJT_UNABLE_TPC;
3911 break;
3912 }
3913 lpfc_disc_state_machine(vport, ndlp, elsiocb,
3914 NLP_EVT_RCV_ADISC);
3915 break;
3916 case ELS_CMD_PDISC:
3917 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3918 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
3919 did, vport->port_state, ndlp->nlp_flag);
3920
3921 phba->fc_stat.elsRcvPDISC++;
3922 if (vport->port_state < LPFC_DISC_AUTH) {
3923 rjt_err = LSRJT_UNABLE_TPC;
3924 break;
3925 }
3926 lpfc_disc_state_machine(vport, ndlp, elsiocb,
3927 NLP_EVT_RCV_PDISC);
3928 break;
3929 case ELS_CMD_FARPR:
3930 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3931 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
3932 did, vport->port_state, ndlp->nlp_flag);
3933
3934 phba->fc_stat.elsRcvFARPR++;
3935 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
3936 break;
3937 case ELS_CMD_FARP:
3938 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3939 "RCV FARP: did:x%x/ste:x%x flg:x%x",
3940 did, vport->port_state, ndlp->nlp_flag);
3941
3942 phba->fc_stat.elsRcvFARP++;
3943 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
3944 break;
3945 case ELS_CMD_FAN:
3946 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3947 "RCV FAN: did:x%x/ste:x%x flg:x%x",
3948 did, vport->port_state, ndlp->nlp_flag);
3949
3950 phba->fc_stat.elsRcvFAN++;
3951 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
3952 break;
3953 case ELS_CMD_PRLI:
3954 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3955 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
3956 did, vport->port_state, ndlp->nlp_flag);
3957
3958 phba->fc_stat.elsRcvPRLI++;
3959 if (vport->port_state < LPFC_DISC_AUTH) {
3960 rjt_err = LSRJT_UNABLE_TPC;
3961 break;
3962 }
3963 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
3964 break;
3965 case ELS_CMD_LIRR:
3966 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3967 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
3968 did, vport->port_state, ndlp->nlp_flag);
3969
3970 phba->fc_stat.elsRcvLIRR++;
3971 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
3972 if (newnode)
3973 lpfc_drop_node(vport, ndlp);
3974 break;
3975 case ELS_CMD_RPS:
3976 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3977 "RCV RPS: did:x%x/ste:x%x flg:x%x",
3978 did, vport->port_state, ndlp->nlp_flag);
3979
3980 phba->fc_stat.elsRcvRPS++;
3981 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
3982 if (newnode)
3983 lpfc_drop_node(vport, ndlp);
3984 break;
3985 case ELS_CMD_RPL:
3986 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3987 "RCV RPL: did:x%x/ste:x%x flg:x%x",
3988 did, vport->port_state, ndlp->nlp_flag);
3989
3990 phba->fc_stat.elsRcvRPL++;
3991 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
3992 if (newnode)
3993 lpfc_drop_node(vport, ndlp);
3994 break;
3995 case ELS_CMD_RNID:
3996 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
3997 "RCV RNID: did:x%x/ste:x%x flg:x%x",
3998 did, vport->port_state, ndlp->nlp_flag);
3999
4000 phba->fc_stat.elsRcvRNID++;
4001 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
4002 if (newnode)
4003 lpfc_drop_node(vport, ndlp);
4004 break;
4005 default:
4006 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
4007 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
4008 cmd, did, vport->port_state);
4009
4010 /* Unsupported ELS command, reject */
4011 rjt_err = LSRJT_INVALID_CMD;
4012
4013 /* Unknown ELS command <elsCmd> received from NPORT <did> */
4014 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4015 "%d (%d):0115 Unknown ELS command x%x "
4016 "received from NPORT x%x\n",
4017 phba->brd_no, vport->vpi, cmd, did);
4018 if (newnode)
4019 lpfc_drop_node(vport, ndlp);
4020 break;
4021 }
4022
4023 /* check if need to LS_RJT received ELS cmd */
4024 if (rjt_err) {
4025 memset(&stat, 0, sizeof(stat));
4026 stat.un.b.lsRjtRsnCode = rjt_err;
4027 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
4028 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
4029 NULL);
4030 if (newnode)
4031 lpfc_drop_node(vport, ndlp);
4032 }
4033
4034 return;
4035
4036 dropit:
4037 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4038 "%d (%d):0111 Dropping received ELS cmd "
4039 "Data: x%x x%x x%x\n",
4040 phba->brd_no, vport ? vport->vpi : 0xffff,
4041 icmd->ulpStatus, icmd->un.ulpWord[4],
4042 icmd->ulpTimeout);
4043 phba->fc_stat.elsRcvDrop++;
4044 }
4045
4046 static struct lpfc_vport *
4047 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
4048 {
4049 struct lpfc_vport *vport;
4050 unsigned long flags;
4051
4052 spin_lock_irqsave(&phba->hbalock, flags);
4053 list_for_each_entry(vport, &phba->port_list, listentry) {
4054 if (vport->vpi == vpi) {
4055 spin_unlock_irqrestore(&phba->hbalock, flags);
4056 return vport;
4057 }
4058 }
4059 spin_unlock_irqrestore(&phba->hbalock, flags);
4060 return NULL;
4061 }
4062
4063 void
4064 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4065 struct lpfc_iocbq *elsiocb)
4066 {
4067 struct lpfc_vport *vport = phba->pport;
4068 IOCB_t *icmd = &elsiocb->iocb;
4069 dma_addr_t paddr;
4070 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
4071 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
4072
4073 elsiocb->context2 = NULL;
4074 elsiocb->context3 = NULL;
4075
4076 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
4077 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
4078 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
4079 (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) {
4080 phba->fc_stat.NoRcvBuf++;
4081 /* Not enough posted buffers; Try posting more buffers */
4082 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
4083 lpfc_post_buffer(phba, pring, 0, 1);
4084 return;
4085 }
4086
4087 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4088 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
4089 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
4090 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
4091 vport = phba->pport;
4092 else {
4093 uint16_t vpi = icmd->unsli3.rcvsli3.vpi;
4094 vport = lpfc_find_vport_by_vpid(phba, vpi);
4095 }
4096 }
4097 /* If there are no BDEs associated
4098 * with this IOCB, there is nothing to do.
4099 */
4100 if (icmd->ulpBdeCount == 0)
4101 return;
4102
4103 /* type of ELS cmd is first 32bit word
4104 * in packet
4105 */
4106 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4107 elsiocb->context2 = bdeBuf1;
4108 } else {
4109 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
4110 icmd->un.cont64[0].addrLow);
4111 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
4112 paddr);
4113 }
4114
4115 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
4116 /*
4117 * The different unsolicited event handlers would tell us
4118 * if they are done with "mp" by setting context2 to NULL.
4119 */
4120 lpfc_nlp_put(elsiocb->context1);
4121 elsiocb->context1 = NULL;
4122 if (elsiocb->context2) {
4123 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
4124 elsiocb->context2 = NULL;
4125 }
4126
4127 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
4128 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
4129 icmd->ulpBdeCount == 2) {
4130 elsiocb->context2 = bdeBuf2;
4131 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
4132 /* free mp if we are done with it */
4133 if (elsiocb->context2) {
4134 lpfc_in_buf_free(phba, elsiocb->context2);
4135 elsiocb->context2 = NULL;
4136 }
4137 }
4138 }
4139
4140 void
4141 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4142 {
4143 struct lpfc_nodelist *ndlp, *ndlp_fdmi;
4144
4145 ndlp = lpfc_findnode_did(vport, NameServer_DID);
4146 if (!ndlp) {
4147 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4148 if (!ndlp) {
4149 if (phba->fc_topology == TOPOLOGY_LOOP) {
4150 lpfc_disc_start(vport);
4151 return;
4152 }
4153 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4154 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4155 "%d (%d):0251 NameServer login: no memory\n",
4156 phba->brd_no, vport->vpi);
4157 return;
4158 }
4159 lpfc_nlp_init(vport, ndlp, NameServer_DID);
4160 ndlp->nlp_type |= NLP_FABRIC;
4161 }
4162
4163 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4164
4165 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
4166 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4167 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4168 "%d (%d):0252 Cannot issue NameServer login\n",
4169 phba->brd_no, vport->vpi);
4170 return;
4171 }
4172
4173 if (phba->cfg_fdmi_on) {
4174 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
4175 GFP_KERNEL);
4176 if (ndlp_fdmi) {
4177 lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID);
4178 ndlp_fdmi->nlp_type |= NLP_FABRIC;
4179 ndlp_fdmi->nlp_state =
4180 NLP_STE_PLOGI_ISSUE;
4181 lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID,
4182 0);
4183 }
4184 }
4185 return;
4186 }
4187
4188 static void
4189 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4190 {
4191 struct lpfc_vport *vport = pmb->vport;
4192 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4193 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
4194 MAILBOX_t *mb = &pmb->mb;
4195
4196 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
4197 lpfc_nlp_put(ndlp);
4198
4199 if (mb->mbxStatus) {
4200 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
4201 "%d (%d):0915 Register VPI failed: 0x%x\n",
4202 phba->brd_no, vport->vpi, mb->mbxStatus);
4203
4204 switch (mb->mbxStatus) {
4205 case 0x11: /* unsupported feature */
4206 case 0x9603: /* max_vpi exceeded */
4207 /* giving up on vport registration */
4208 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4209 spin_lock_irq(shost->host_lock);
4210 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
4211 spin_unlock_irq(shost->host_lock);
4212 lpfc_can_disctmo(vport);
4213 break;
4214 default:
4215 /* Try to recover from this error */
4216 lpfc_mbx_unreg_vpi(vport);
4217 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4218 lpfc_initial_fdisc(vport);
4219 break;
4220 }
4221
4222 } else {
4223 if (vport == phba->pport)
4224 lpfc_issue_fabric_reglogin(vport);
4225 else
4226 lpfc_do_scr_ns_plogi(phba, vport);
4227 }
4228 mempool_free(pmb, phba->mbox_mem_pool);
4229 return;
4230 }
4231
4232 void
4233 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
4234 struct lpfc_nodelist *ndlp)
4235 {
4236 LPFC_MBOXQ_t *mbox;
4237
4238 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4239 if (mbox) {
4240 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, mbox);
4241 mbox->vport = vport;
4242 mbox->context2 = lpfc_nlp_get(ndlp);
4243 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
4244 if (lpfc_sli_issue_mbox(phba, mbox,
4245 MBX_NOWAIT | MBX_STOP_IOCB)
4246 == MBX_NOT_FINISHED) {
4247 mempool_free(mbox, phba->mbox_mem_pool);
4248 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
4249
4250 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4251
4252 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
4253 "%d (%d):0253 Register VPI: Cannot send mbox\n",
4254 phba->brd_no, vport->vpi);
4255 }
4256 } else {
4257 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4258
4259 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
4260 "%d (%d):0254 Register VPI: no memory\n",
4261 phba->brd_no, vport->vpi);
4262
4263 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
4264 lpfc_nlp_put(ndlp);
4265 }
4266 }
4267
4268 static void
4269 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4270 struct lpfc_iocbq *rspiocb)
4271 {
4272 struct lpfc_vport *vport = cmdiocb->vport;
4273 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4274 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
4275 struct lpfc_nodelist *np;
4276 struct lpfc_nodelist *next_np;
4277 IOCB_t *irsp = &rspiocb->iocb;
4278 struct lpfc_iocbq *piocb;
4279
4280 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
4281 "%d (%d):0123 FDISC completes. x%x/x%x prevDID: x%x\n",
4282 phba->brd_no, vport->vpi,
4283 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
4284
4285 /* Since all FDISCs are being single threaded, we
4286 * must reset the discovery timer for ALL vports
4287 * waiting to send FDISC when one completes.
4288 */
4289 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
4290 lpfc_set_disctmo(piocb->vport);
4291 }
4292
4293 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4294 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
4295 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
4296
4297 if (irsp->ulpStatus) {
4298 /* Check for retry */
4299 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
4300 goto out;
4301
4302 /* FDISC failed */
4303 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4304 "%d (%d):0124 FDISC failed. (%d/%d)\n",
4305 phba->brd_no, vport->vpi,
4306 irsp->ulpStatus, irsp->un.ulpWord[4]);
4307
4308 if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING)
4309 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4310
4311 lpfc_nlp_put(ndlp);
4312 /* giving up on FDISC. Cancel discovery timer */
4313 lpfc_can_disctmo(vport);
4314 } else {
4315 spin_lock_irq(shost->host_lock);
4316 vport->fc_flag |= FC_FABRIC;
4317 if (vport->phba->fc_topology == TOPOLOGY_LOOP)
4318 vport->fc_flag |= FC_PUBLIC_LOOP;
4319 spin_unlock_irq(shost->host_lock);
4320
4321 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
4322 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
4323 if ((vport->fc_prevDID != vport->fc_myDID) &&
4324 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
4325 /* If our NportID changed, we need to ensure all
4326 * remaining NPORTs get unreg_login'ed so we can
4327 * issue unreg_vpi.
4328 */
4329 list_for_each_entry_safe(np, next_np,
4330 &vport->fc_nodes, nlp_listp) {
4331 if (np->nlp_state != NLP_STE_NPR_NODE
4332 || !(np->nlp_flag & NLP_NPR_ADISC))
4333 continue;
4334 spin_lock_irq(shost->host_lock);
4335 np->nlp_flag &= ~NLP_NPR_ADISC;
4336 spin_unlock_irq(shost->host_lock);
4337 lpfc_unreg_rpi(vport, np);
4338 }
4339 lpfc_mbx_unreg_vpi(vport);
4340 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4341 }
4342
4343 if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
4344 lpfc_register_new_vport(phba, vport, ndlp);
4345 else
4346 lpfc_do_scr_ns_plogi(phba, vport);
4347
4348 lpfc_nlp_put(ndlp); /* Free Fabric ndlp for vports */
4349 }
4350
4351 out:
4352 lpfc_els_free_iocb(phba, cmdiocb);
4353 }
4354
4355 int
4356 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4357 uint8_t retry)
4358 {
4359 struct lpfc_hba *phba = vport->phba;
4360 IOCB_t *icmd;
4361 struct lpfc_iocbq *elsiocb;
4362 struct serv_parm *sp;
4363 uint8_t *pcmd;
4364 uint16_t cmdsize;
4365 int did = ndlp->nlp_DID;
4366 int rc;
4367
4368 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
4369 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
4370 ELS_CMD_FDISC);
4371 if (!elsiocb) {
4372 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4373
4374 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4375 "%d (%d):0255 Issue FDISC: no IOCB\n",
4376 phba->brd_no, vport->vpi);
4377 return 1;
4378 }
4379
4380 icmd = &elsiocb->iocb;
4381 icmd->un.elsreq64.myID = 0;
4382 icmd->un.elsreq64.fl = 1;
4383
4384 /* For FDISC, Let FDISC rsp set the NPortID for this VPI */
4385 icmd->ulpCt_h = 1;
4386 icmd->ulpCt_l = 0;
4387
4388 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4389 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
4390 pcmd += sizeof(uint32_t); /* CSP Word 1 */
4391 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
4392 sp = (struct serv_parm *) pcmd;
4393 /* Setup CSPs accordingly for Fabric */
4394 sp->cmn.e_d_tov = 0;
4395 sp->cmn.w2.r_a_tov = 0;
4396 sp->cls1.classValid = 0;
4397 sp->cls2.seqDelivery = 1;
4398 sp->cls3.seqDelivery = 1;
4399
4400 pcmd += sizeof(uint32_t); /* CSP Word 2 */
4401 pcmd += sizeof(uint32_t); /* CSP Word 3 */
4402 pcmd += sizeof(uint32_t); /* CSP Word 4 */
4403 pcmd += sizeof(uint32_t); /* Port Name */
4404 memcpy(pcmd, &vport->fc_portname, 8);
4405 pcmd += sizeof(uint32_t); /* Node Name */
4406 pcmd += sizeof(uint32_t); /* Node Name */
4407 memcpy(pcmd, &vport->fc_nodename, 8);
4408
4409 lpfc_set_disctmo(vport);
4410
4411 phba->fc_stat.elsXmitFDISC++;
4412 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
4413
4414 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4415 "Issue FDISC: did:x%x",
4416 did, 0, 0);
4417
4418 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
4419 if (rc == IOCB_ERROR) {
4420 lpfc_els_free_iocb(phba, elsiocb);
4421 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4422
4423 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
4424 "%d (%d):0256 Issue FDISC: Cannot send IOCB\n",
4425 phba->brd_no, vport->vpi);
4426
4427 return 1;
4428 }
4429 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
4430 vport->port_state = LPFC_FDISC;
4431 return 0;
4432 }
4433
4434 static void
4435 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4436 struct lpfc_iocbq *rspiocb)
4437 {
4438 struct lpfc_vport *vport = cmdiocb->vport;
4439 IOCB_t *irsp;
4440
4441 irsp = &rspiocb->iocb;
4442 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4443 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
4444 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
4445
4446 lpfc_els_free_iocb(phba, cmdiocb);
4447 vport->unreg_vpi_cmpl = VPORT_ERROR;
4448 }
4449
4450 int
4451 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4452 {
4453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4454 struct lpfc_hba *phba = vport->phba;
4455 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
4456 IOCB_t *icmd;
4457 struct lpfc_iocbq *elsiocb;
4458 uint8_t *pcmd;
4459 uint16_t cmdsize;
4460
4461 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
4462 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
4463 ELS_CMD_LOGO);
4464 if (!elsiocb)
4465 return 1;
4466
4467 icmd = &elsiocb->iocb;
4468 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4469 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
4470 pcmd += sizeof(uint32_t);
4471
4472 /* Fill in LOGO payload */
4473 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
4474 pcmd += sizeof(uint32_t);
4475 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
4476
4477 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4478 "Issue LOGO npiv did:x%x flg:x%x",
4479 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4480
4481 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
4482 spin_lock_irq(shost->host_lock);
4483 ndlp->nlp_flag |= NLP_LOGO_SND;
4484 spin_unlock_irq(shost->host_lock);
4485 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
4486 spin_lock_irq(shost->host_lock);
4487 ndlp->nlp_flag &= ~NLP_LOGO_SND;
4488 spin_unlock_irq(shost->host_lock);
4489 lpfc_els_free_iocb(phba, elsiocb);
4490 return 1;
4491 }
4492 return 0;
4493 }
4494
4495 void
4496 lpfc_fabric_block_timeout(unsigned long ptr)
4497 {
4498 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
4499 unsigned long iflags;
4500 uint32_t tmo_posted;
4501 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
4502 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
4503 if (!tmo_posted)
4504 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
4505 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
4506
4507 if (!tmo_posted) {
4508 spin_lock_irqsave(&phba->hbalock, iflags);
4509 if (phba->work_wait)
4510 lpfc_worker_wake_up(phba);
4511 spin_unlock_irqrestore(&phba->hbalock, iflags);
4512 }
4513 }
4514
4515 static void
4516 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
4517 {
4518 struct lpfc_iocbq *iocb;
4519 unsigned long iflags;
4520 int ret;
4521 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
4522 IOCB_t *cmd;
4523
4524 repeat:
4525 iocb = NULL;
4526 spin_lock_irqsave(&phba->hbalock, iflags);
4527 /* Post any pending iocb to the SLI layer */
4528 if (atomic_read(&phba->fabric_iocb_count) == 0) {
4529 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
4530 list);
4531 if (iocb)
4532 atomic_inc(&phba->fabric_iocb_count);
4533 }
4534 spin_unlock_irqrestore(&phba->hbalock, iflags);
4535 if (iocb) {
4536 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
4537 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
4538 iocb->iocb_flag |= LPFC_IO_FABRIC;
4539
4540 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
4541 "Fabric sched1: ste:x%x",
4542 iocb->vport->port_state, 0, 0);
4543
4544 ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0);
4545
4546 if (ret == IOCB_ERROR) {
4547 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
4548 iocb->fabric_iocb_cmpl = NULL;
4549 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
4550 cmd = &iocb->iocb;
4551 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
4552 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
4553 iocb->iocb_cmpl(phba, iocb, iocb);
4554
4555 atomic_dec(&phba->fabric_iocb_count);
4556 goto repeat;
4557 }
4558 }
4559
4560 return;
4561 }
4562
4563 void
4564 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
4565 {
4566 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
4567
4568 lpfc_resume_fabric_iocbs(phba);
4569 return;
4570 }
4571
4572 static void
4573 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
4574 {
4575 int blocked;
4576
4577 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
4578 /* Start a timer to unblock fabric
4579 * iocbs after 100ms
4580 */
4581 if (!blocked)
4582 mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 );
4583
4584 return;
4585 }
4586
4587 static void
4588 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4589 struct lpfc_iocbq *rspiocb)
4590 {
4591 struct ls_rjt stat;
4592
4593 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
4594 BUG();
4595
4596 switch (rspiocb->iocb.ulpStatus) {
4597 case IOSTAT_NPORT_RJT:
4598 case IOSTAT_FABRIC_RJT:
4599 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
4600 lpfc_block_fabric_iocbs(phba);
4601 }
4602 break;
4603
4604 case IOSTAT_NPORT_BSY:
4605 case IOSTAT_FABRIC_BSY:
4606 lpfc_block_fabric_iocbs(phba);
4607 break;
4608
4609 case IOSTAT_LS_RJT:
4610 stat.un.lsRjtError =
4611 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
4612 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
4613 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
4614 lpfc_block_fabric_iocbs(phba);
4615 break;
4616 }
4617
4618 if (atomic_read(&phba->fabric_iocb_count) == 0)
4619 BUG();
4620
4621 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
4622 cmdiocb->fabric_iocb_cmpl = NULL;
4623 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
4624 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
4625
4626 atomic_dec(&phba->fabric_iocb_count);
4627 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
4628 /* Post any pending iocbs to HBA */
4629 lpfc_resume_fabric_iocbs(phba);
4630 }
4631 }
4632
4633 int
4634 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
4635 {
4636 unsigned long iflags;
4637 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
4638 int ready;
4639 int ret;
4640
4641 if (atomic_read(&phba->fabric_iocb_count) > 1)
4642 BUG();
4643
4644 spin_lock_irqsave(&phba->hbalock, iflags);
4645 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
4646 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
4647
4648 spin_unlock_irqrestore(&phba->hbalock, iflags);
4649 if (ready) {
4650 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
4651 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
4652 iocb->iocb_flag |= LPFC_IO_FABRIC;
4653
4654 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
4655 "Fabric sched2: ste:x%x",
4656 iocb->vport->port_state, 0, 0);
4657
4658 atomic_inc(&phba->fabric_iocb_count);
4659 ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0);
4660
4661 if (ret == IOCB_ERROR) {
4662 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
4663 iocb->fabric_iocb_cmpl = NULL;
4664 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
4665 atomic_dec(&phba->fabric_iocb_count);
4666 }
4667 } else {
4668 spin_lock_irqsave(&phba->hbalock, iflags);
4669 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
4670 spin_unlock_irqrestore(&phba->hbalock, iflags);
4671 ret = IOCB_SUCCESS;
4672 }
4673 return ret;
4674 }
4675
4676
4677 void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
4678 {
4679 LIST_HEAD(completions);
4680 struct lpfc_hba *phba = vport->phba;
4681 struct lpfc_iocbq *tmp_iocb, *piocb;
4682 IOCB_t *cmd;
4683
4684 spin_lock_irq(&phba->hbalock);
4685 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
4686 list) {
4687
4688 if (piocb->vport != vport)
4689 continue;
4690
4691 list_move_tail(&piocb->list, &completions);
4692 }
4693 spin_unlock_irq(&phba->hbalock);
4694
4695 while (!list_empty(&completions)) {
4696 piocb = list_get_first(&completions, struct lpfc_iocbq, list);
4697 list_del_init(&piocb->list);
4698
4699 cmd = &piocb->iocb;
4700 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
4701 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
4702 (piocb->iocb_cmpl) (phba, piocb, piocb);
4703 }
4704 }
4705
4706 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
4707 {
4708 LIST_HEAD(completions);
4709 struct lpfc_hba *phba = ndlp->vport->phba;
4710 struct lpfc_iocbq *tmp_iocb, *piocb;
4711 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
4712 IOCB_t *cmd;
4713
4714 spin_lock_irq(&phba->hbalock);
4715 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
4716 list) {
4717 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
4718
4719 list_move_tail(&piocb->list, &completions);
4720 }
4721 }
4722 spin_unlock_irq(&phba->hbalock);
4723
4724 while (!list_empty(&completions)) {
4725 piocb = list_get_first(&completions, struct lpfc_iocbq, list);
4726 list_del_init(&piocb->list);
4727
4728 cmd = &piocb->iocb;
4729 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
4730 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
4731 (piocb->iocb_cmpl) (phba, piocb, piocb);
4732 }
4733 }
4734
4735 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
4736 {
4737 LIST_HEAD(completions);
4738 struct lpfc_iocbq *piocb;
4739 IOCB_t *cmd;
4740
4741 spin_lock_irq(&phba->hbalock);
4742 list_splice_init(&phba->fabric_iocb_list, &completions);
4743 spin_unlock_irq(&phba->hbalock);
4744
4745 while (!list_empty(&completions)) {
4746 piocb = list_get_first(&completions, struct lpfc_iocbq, list);
4747 list_del_init(&piocb->list);
4748
4749 cmd = &piocb->iocb;
4750 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
4751 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
4752 (piocb->iocb_cmpl) (phba, piocb, piocb);
4753 }
4754 }
4755
4756
4757 void lpfc_fabric_abort_flogi(struct lpfc_hba *phba)
4758 {
4759 LIST_HEAD(completions);
4760 struct lpfc_iocbq *tmp_iocb, *piocb;
4761 IOCB_t *cmd;
4762 struct lpfc_nodelist *ndlp;
4763
4764 spin_lock_irq(&phba->hbalock);
4765 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
4766 list) {
4767
4768 cmd = &piocb->iocb;
4769 ndlp = (struct lpfc_nodelist *) piocb->context1;
4770 if (cmd->ulpCommand == CMD_ELS_REQUEST64_CR &&
4771 ndlp != NULL &&
4772 ndlp->nlp_DID == Fabric_DID)
4773 list_move_tail(&piocb->list, &completions);
4774 }
4775 spin_unlock_irq(&phba->hbalock);
4776
4777 while (!list_empty(&completions)) {
4778 piocb = list_get_first(&completions, struct lpfc_iocbq, list);
4779 list_del_init(&piocb->list);
4780
4781 cmd = &piocb->iocb;
4782 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
4783 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
4784 (piocb->iocb_cmpl) (phba, piocb, piocb);
4785 }
4786 }
4787
4788
Linux kernel - Deliverables
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