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[SCSI] mptfc: correct out of order event processing
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / lpfc / lpfc_els.c
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
2fe165b6 4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e
JB		 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 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. *
dea3101e
JB		 20 *******************************************************************/
21
dea3101e
JB		 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25
91886523 26#include <scsi/scsi.h>
dea3101e
JB		 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
39static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
40 struct lpfc_iocbq *);
41static int lpfc_max_els_tries = 3;
42
43static int
44lpfc_els_chk_latt(struct lpfc_hba * phba)
45{
46 struct lpfc_sli *psli;
47 LPFC_MBOXQ_t *mbox;
48 uint32_t ha_copy;
49 int rc;
50
51 psli = &phba->sli;
52
53 if ((phba->hba_state >= LPFC_HBA_READY) ||
54 (phba->hba_state == LPFC_LINK_DOWN))
55 return 0;
56
57 /* Read the HBA Host Attention Register */
58 spin_lock_irq(phba->host->host_lock);
59 ha_copy = readl(phba->HAregaddr);
60 spin_unlock_irq(phba->host->host_lock);
61
62 if (!(ha_copy & HA_LATT))
63 return 0;
64
65 /* Pending Link Event during Discovery */
66 lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY,
67 "%d:0237 Pending Link Event during "
68 "Discovery: State x%x\n",
69 phba->brd_no, phba->hba_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(phba->host->host_lock);
78 phba->fc_flag |= FC_ABORT_DISCOVERY;
79 spin_unlock_irq(phba->host->host_lock);
80
81 if (phba->hba_state != LPFC_CLEAR_LA) {
82 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
83 phba->hba_state = LPFC_CLEAR_LA;
84 lpfc_clear_la(phba, mbox);
85 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
86 rc = lpfc_sli_issue_mbox (phba, mbox,
87 (MBX_NOWAIT | MBX_STOP_IOCB));
88 if (rc == MBX_NOT_FINISHED) {
89 mempool_free(mbox, phba->mbox_mem_pool);
90 phba->hba_state = LPFC_HBA_ERROR;
91 }
92 }
93 }
94
c9f8735b 95 return 1;
dea3101e
JB		 96
97}
98
99static struct lpfc_iocbq *
488d1469
JS		 100lpfc_prep_els_iocb(struct lpfc_hba * phba, uint8_t expectRsp,
101 uint16_t cmdSize, uint8_t retry, struct lpfc_nodelist * ndlp,
102 uint32_t did, uint32_t elscmd)
dea3101e 103{
dea3101e 104 struct lpfc_sli_ring *pring;
0bd4ca25 105 struct lpfc_iocbq *elsiocb;
dea3101e
JB		 106 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
107 struct ulp_bde64 *bpl;
108 IOCB_t *icmd;
109
110 pring = &phba->sli.ring[LPFC_ELS_RING];
111
112 if (phba->hba_state < LPFC_LINK_UP)
113 return NULL;
114
dea3101e
JB		 115 /* Allocate buffer for command iocb */
116 spin_lock_irq(phba->host->host_lock);
0bd4ca25 117 elsiocb = lpfc_sli_get_iocbq(phba);
dea3101e
JB		 118 spin_unlock_irq(phba->host->host_lock);
119
120 if (elsiocb == NULL)
121 return NULL;
dea3101e
JB		 122 icmd = &elsiocb->iocb;
123
124 /* fill in BDEs for command */
125 /* Allocate buffer for command payload */
126 if (((pcmd = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
127 ((pcmd->virt = lpfc_mbuf_alloc(phba,
128 MEM_PRI, &(pcmd->phys))) == 0)) {
c9475cb0 129 kfree(pcmd);
dea3101e 130
604a3e30
JB		 131 spin_lock_irq(phba->host->host_lock);
132 lpfc_sli_release_iocbq(phba, elsiocb);
133 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 134 return NULL;
135 }
136
137 INIT_LIST_HEAD(&pcmd->list);
138
139 /* Allocate buffer for response payload */
140 if (expectRsp) {
141 prsp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
142 if (prsp)
143 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
144 &prsp->phys);
145 if (prsp == 0 || prsp->virt == 0) {
c9475cb0 146 kfree(prsp);
dea3101e
JB		 147 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
148 kfree(pcmd);
604a3e30
JB		 149 spin_lock_irq(phba->host->host_lock);
150 lpfc_sli_release_iocbq(phba, elsiocb);
151 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 152 return NULL;
153 }
154 INIT_LIST_HEAD(&prsp->list);
155 } else {
156 prsp = NULL;
157 }
158
159 /* Allocate buffer for Buffer ptr list */
160 pbuflist = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
161 if (pbuflist)
162 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
163 &pbuflist->phys);
164 if (pbuflist == 0 || pbuflist->virt == 0) {
604a3e30
JB		 165 spin_lock_irq(phba->host->host_lock);
166 lpfc_sli_release_iocbq(phba, elsiocb);
167 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 168 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
169 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
170 kfree(pcmd);
171 kfree(prsp);
c9475cb0 172 kfree(pbuflist);
dea3101e
JB		 173 return NULL;
174 }
175
176 INIT_LIST_HEAD(&pbuflist->list);
177
178 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
179 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
180 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL;
181 if (expectRsp) {
182 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64));
488d1469 183 icmd->un.elsreq64.remoteID = did; /* DID */
dea3101e
JB		 184 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
185 } else {
186 icmd->un.elsreq64.bdl.bdeSize = sizeof (struct ulp_bde64);
187 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
188 }
189
190 icmd->ulpBdeCount = 1;
191 icmd->ulpLe = 1;
192 icmd->ulpClass = CLASS3;
193
194 bpl = (struct ulp_bde64 *) pbuflist->virt;
195 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
196 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
197 bpl->tus.f.bdeSize = cmdSize;
198 bpl->tus.f.bdeFlags = 0;
199 bpl->tus.w = le32_to_cpu(bpl->tus.w);
200
201 if (expectRsp) {
202 bpl++;
203 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
204 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
205 bpl->tus.f.bdeSize = FCELSSIZE;
206 bpl->tus.f.bdeFlags = BUFF_USE_RCV;
207 bpl->tus.w = le32_to_cpu(bpl->tus.w);
208 }
209
210 /* Save for completion so we can release these resources */
211 elsiocb->context1 = (uint8_t *) ndlp;
212 elsiocb->context2 = (uint8_t *) pcmd;
213 elsiocb->context3 = (uint8_t *) pbuflist;
214 elsiocb->retry = retry;
215 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
216
217 if (prsp) {
218 list_add(&prsp->list, &pcmd->list);
219 }
220
221 if (expectRsp) {
222 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
223 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
224 "%d:0116 Xmit ELS command x%x to remote "
225 "NPORT x%x Data: x%x x%x\n",
226 phba->brd_no, elscmd,
488d1469 227 did, icmd->ulpIoTag, phba->hba_state);
dea3101e
JB		 228 } else {
229 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
230 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
231 "%d:0117 Xmit ELS response x%x to remote "
232 "NPORT x%x Data: x%x x%x\n",
233 phba->brd_no, elscmd,
234 ndlp->nlp_DID, icmd->ulpIoTag, cmdSize);
235 }
236
c9f8735b 237 return elsiocb;
dea3101e
JB		 238}
239
240
241static int
242lpfc_cmpl_els_flogi_fabric(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
243 struct serv_parm *sp, IOCB_t *irsp)
244{
245 LPFC_MBOXQ_t *mbox;
246 int rc;
247
248 spin_lock_irq(phba->host->host_lock);
249 phba->fc_flag |= FC_FABRIC;
250 spin_unlock_irq(phba->host->host_lock);
251
252 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
253 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
254 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
255
256 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
257
258 if (phba->fc_topology == TOPOLOGY_LOOP) {
259 spin_lock_irq(phba->host->host_lock);
260 phba->fc_flag |= FC_PUBLIC_LOOP;
261 spin_unlock_irq(phba->host->host_lock);
262 } else {
263 /*
264 * If we are a N-port connected to a Fabric, fixup sparam's so
265 * logins to devices on remote loops work.
266 */
267 phba->fc_sparam.cmn.altBbCredit = 1;
268 }
269
270 phba->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
271 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
272 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
273 ndlp->nlp_class_sup = 0;
274 if (sp->cls1.classValid)
275 ndlp->nlp_class_sup |= FC_COS_CLASS1;
276 if (sp->cls2.classValid)
277 ndlp->nlp_class_sup |= FC_COS_CLASS2;
278 if (sp->cls3.classValid)
279 ndlp->nlp_class_sup |= FC_COS_CLASS3;
280 if (sp->cls4.classValid)
281 ndlp->nlp_class_sup |= FC_COS_CLASS4;
282 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
283 sp->cmn.bbRcvSizeLsb;
284 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
285
286 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
287 if (!mbox)
288 goto fail;
289
290 phba->hba_state = LPFC_FABRIC_CFG_LINK;
291 lpfc_config_link(phba, mbox);
292 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
293
294 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
295 if (rc == MBX_NOT_FINISHED)
296 goto fail_free_mbox;
297
298 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
299 if (!mbox)
300 goto fail;
301
302 if (lpfc_reg_login(phba, Fabric_DID, (uint8_t *) sp, mbox, 0))
303 goto fail_free_mbox;
304
dea3101e
JB		 305 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
306 mbox->context2 = ndlp;
307
308 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
309 if (rc == MBX_NOT_FINISHED)
310 goto fail_free_mbox;
311
312 return 0;
313
314 fail_free_mbox:
315 mempool_free(mbox, phba->mbox_mem_pool);
316 fail:
317 return -ENXIO;
318}
319
320/*
321 * We FLOGIed into an NPort, initiate pt2pt protocol
322 */
323static int
324lpfc_cmpl_els_flogi_nport(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
325 struct serv_parm *sp)
326{
327 LPFC_MBOXQ_t *mbox;
328 int rc;
329
330 spin_lock_irq(phba->host->host_lock);
331 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
332 spin_unlock_irq(phba->host->host_lock);
333
334 phba->fc_edtov = FF_DEF_EDTOV;
335 phba->fc_ratov = FF_DEF_RATOV;
336 rc = memcmp(&phba->fc_portname, &sp->portName,
337 sizeof(struct lpfc_name));
338 if (rc >= 0) {
339 /* This side will initiate the PLOGI */
340 spin_lock_irq(phba->host->host_lock);
341 phba->fc_flag |= FC_PT2PT_PLOGI;
342 spin_unlock_irq(phba->host->host_lock);
343
344 /*
345 * N_Port ID cannot be 0, set our to LocalID the other
346 * side will be RemoteID.
347 */
348
349 /* not equal */
350 if (rc)
351 phba->fc_myDID = PT2PT_LocalID;
352
353 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
354 if (!mbox)
355 goto fail;
356
357 lpfc_config_link(phba, mbox);
358
359 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
360 rc = lpfc_sli_issue_mbox(phba, mbox,
361 MBX_NOWAIT | MBX_STOP_IOCB);
362 if (rc == MBX_NOT_FINISHED) {
363 mempool_free(mbox, phba->mbox_mem_pool);
364 goto fail;
365 }
366 mempool_free(ndlp, phba->nlp_mem_pool);
367
368 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, PT2PT_RemoteID);
369 if (!ndlp) {
370 /*
371 * Cannot find existing Fabric ndlp, so allocate a
372 * new one
373 */
374 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
375 if (!ndlp)
376 goto fail;
377
378 lpfc_nlp_init(phba, ndlp, PT2PT_RemoteID);
379 }
380
381 memcpy(&ndlp->nlp_portname, &sp->portName,
382 sizeof(struct lpfc_name));
383 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
384 sizeof(struct lpfc_name));
385 ndlp->nlp_state = NLP_STE_NPR_NODE;
386 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
387 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
388 } else {
389 /* This side will wait for the PLOGI */
390 mempool_free( ndlp, phba->nlp_mem_pool);
391 }
392
393 spin_lock_irq(phba->host->host_lock);
394 phba->fc_flag |= FC_PT2PT;
395 spin_unlock_irq(phba->host->host_lock);
396
397 /* Start discovery - this should just do CLEAR_LA */
398 lpfc_disc_start(phba);
399 return 0;
400 fail:
401 return -ENXIO;
402}
403
404static void
405lpfc_cmpl_els_flogi(struct lpfc_hba * phba,
406 struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb)
407{
408 IOCB_t *irsp = &rspiocb->iocb;
409 struct lpfc_nodelist *ndlp = cmdiocb->context1;
410 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
411 struct serv_parm *sp;
412 int rc;
413
414 /* Check to see if link went down during discovery */
415 if (lpfc_els_chk_latt(phba)) {
416 lpfc_nlp_remove(phba, ndlp);
417 goto out;
418 }
419
420 if (irsp->ulpStatus) {
421 /* Check for retry */
422 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
423 /* ELS command is being retried */
424 goto out;
425 }
426 /* FLOGI failed, so there is no fabric */
427 spin_lock_irq(phba->host->host_lock);
428 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
429 spin_unlock_irq(phba->host->host_lock);
430
431 /* If private loop, then allow max outstandting els to be
432 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
433 * alpa map would take too long otherwise.
434 */
435 if (phba->alpa_map[0] == 0) {
436 phba->cfg_discovery_threads =
437 LPFC_MAX_DISC_THREADS;
438 }
439
440 /* FLOGI failure */
441 lpfc_printf_log(phba,
442 KERN_INFO,
443 LOG_ELS,
c9f8735b 444 "%d:0100 FLOGI failure Data: x%x x%x x%x\n",
dea3101e 445 phba->brd_no,
c9f8735b
JW		 446 irsp->ulpStatus, irsp->un.ulpWord[4],
447 irsp->ulpTimeout);
dea3101e
JB		 448 goto flogifail;
449 }
450
451 /*
452 * The FLogI succeeded. Sync the data for the CPU before
453 * accessing it.
454 */
455 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
456
457 sp = prsp->virt + sizeof(uint32_t);
458
459 /* FLOGI completes successfully */
460 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
461 "%d:0101 FLOGI completes sucessfully "
462 "Data: x%x x%x x%x x%x\n",
463 phba->brd_no,
464 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
465 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution);
466
467 if (phba->hba_state == LPFC_FLOGI) {
468 /*
469 * If Common Service Parameters indicate Nport
470 * we are point to point, if Fport we are Fabric.
471 */
472 if (sp->cmn.fPort)
473 rc = lpfc_cmpl_els_flogi_fabric(phba, ndlp, sp, irsp);
474 else
475 rc = lpfc_cmpl_els_flogi_nport(phba, ndlp, sp);
476
477 if (!rc)
478 goto out;
479 }
480
481flogifail:
482 lpfc_nlp_remove(phba, ndlp);
483
484 if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
485 (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED &&
486 irsp->un.ulpWord[4] != IOERR_SLI_DOWN)) {
487 /* FLOGI failed, so just use loop map to make discovery list */
488 lpfc_disc_list_loopmap(phba);
489
490 /* Start discovery */
491 lpfc_disc_start(phba);
492 }
493
494out:
495 lpfc_els_free_iocb(phba, cmdiocb);
496}
497
498static int
499lpfc_issue_els_flogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
500 uint8_t retry)
501{
502 struct serv_parm *sp;
503 IOCB_t *icmd;
504 struct lpfc_iocbq *elsiocb;
505 struct lpfc_sli_ring *pring;
506 uint8_t *pcmd;
507 uint16_t cmdsize;
508 uint32_t tmo;
509 int rc;
510
511 pring = &phba->sli.ring[LPFC_ELS_RING];
512
513 cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
488d1469
JS		 514 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
515 ndlp->nlp_DID, ELS_CMD_FLOGI);
516 if (!elsiocb)
c9f8735b 517 return 1;
dea3101e
JB		 518
519 icmd = &elsiocb->iocb;
520 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
521
522 /* For FLOGI request, remainder of payload is service parameters */
523 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
524 pcmd += sizeof (uint32_t);
525 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
526 sp = (struct serv_parm *) pcmd;
527
528 /* Setup CSPs accordingly for Fabric */
529 sp->cmn.e_d_tov = 0;
530 sp->cmn.w2.r_a_tov = 0;
531 sp->cls1.classValid = 0;
532 sp->cls2.seqDelivery = 1;
533 sp->cls3.seqDelivery = 1;
534 if (sp->cmn.fcphLow < FC_PH3)
535 sp->cmn.fcphLow = FC_PH3;
536 if (sp->cmn.fcphHigh < FC_PH3)
537 sp->cmn.fcphHigh = FC_PH3;
538
539 tmo = phba->fc_ratov;
540 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
541 lpfc_set_disctmo(phba);
542 phba->fc_ratov = tmo;
543
544 phba->fc_stat.elsXmitFLOGI++;
545 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
546 spin_lock_irq(phba->host->host_lock);
547 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
548 spin_unlock_irq(phba->host->host_lock);
549 if (rc == IOCB_ERROR) {
550 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 551 return 1;
dea3101e 552 }
c9f8735b 553 return 0;
dea3101e
JB		 554}
555
556int
557lpfc_els_abort_flogi(struct lpfc_hba * phba)
558{
559 struct lpfc_sli_ring *pring;
560 struct lpfc_iocbq *iocb, *next_iocb;
561 struct lpfc_nodelist *ndlp;
562 IOCB_t *icmd;
563
564 /* Abort outstanding I/O on NPort <nlp_DID> */
565 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
566 "%d:0201 Abort outstanding I/O on NPort x%x\n",
567 phba->brd_no, Fabric_DID);
568
569 pring = &phba->sli.ring[LPFC_ELS_RING];
570
571 /*
572 * Check the txcmplq for an iocb that matches the nport the driver is
573 * searching for.
574 */
575 spin_lock_irq(phba->host->host_lock);
576 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
577 icmd = &iocb->iocb;
578 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
579 ndlp = (struct lpfc_nodelist *)(iocb->context1);
580 if (ndlp && (ndlp->nlp_DID == Fabric_DID)) {
581 list_del(&iocb->list);
582 pring->txcmplq_cnt--;
583
584 if ((icmd->un.elsreq64.bdl.ulpIoTag32)) {
585 lpfc_sli_issue_abort_iotag32
586 (phba, pring, iocb);
587 }
588 if (iocb->iocb_cmpl) {
589 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
590 icmd->un.ulpWord[4] =
591 IOERR_SLI_ABORTED;
592 spin_unlock_irq(phba->host->host_lock);
593 (iocb->iocb_cmpl) (phba, iocb, iocb);
594 spin_lock_irq(phba->host->host_lock);
604a3e30
JB		 595 } else
596 lpfc_sli_release_iocbq(phba, iocb);
dea3101e
JB		 597 }
598 }
599 }
600 spin_unlock_irq(phba->host->host_lock);
601
602 return 0;
603}
604
605int
606lpfc_initial_flogi(struct lpfc_hba * phba)
607{
608 struct lpfc_nodelist *ndlp;
609
c9f8735b
JW		 610 /* First look for the Fabric ndlp */
611 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, Fabric_DID);
612 if (!ndlp) {
dea3101e 613 /* Cannot find existing Fabric ndlp, so allocate a new one */
c9f8735b
JW		 614 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
615 if (!ndlp)
616 return 0;
dea3101e 617 lpfc_nlp_init(phba, ndlp, Fabric_DID);
c9f8735b
JW		 618 } else {
619 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
dea3101e
JB		 620 }
621 if (lpfc_issue_els_flogi(phba, ndlp, 0)) {
622 mempool_free( ndlp, phba->nlp_mem_pool);
623 }
c9f8735b 624 return 1;
dea3101e
JB		 625}
626
627static void
628lpfc_more_plogi(struct lpfc_hba * phba)
629{
630 int sentplogi;
631
632 if (phba->num_disc_nodes)
633 phba->num_disc_nodes--;
634
635 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
636 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
637 "%d:0232 Continue discovery with %d PLOGIs to go "
638 "Data: x%x x%x x%x\n",
639 phba->brd_no, phba->num_disc_nodes, phba->fc_plogi_cnt,
640 phba->fc_flag, phba->hba_state);
641
642 /* Check to see if there are more PLOGIs to be sent */
643 if (phba->fc_flag & FC_NLP_MORE) {
644 /* go thru NPR list and issue any remaining ELS PLOGIs */
645 sentplogi = lpfc_els_disc_plogi(phba);
646 }
647 return;
648}
649
488d1469 650static struct lpfc_nodelist *
92795650 651lpfc_plogi_confirm_nport(struct lpfc_hba * phba, struct lpfc_dmabuf *prsp,
488d1469
JS		 652 struct lpfc_nodelist *ndlp)
653{
654 struct lpfc_nodelist *new_ndlp;
488d1469
JS		 655 uint32_t *lp;
656 struct serv_parm *sp;
657 uint8_t name[sizeof (struct lpfc_name)];
658 uint32_t rc;
659
488d1469
JS		 660 lp = (uint32_t *) prsp->virt;
661 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
92795650 662 memset(name, 0, sizeof (struct lpfc_name));
488d1469
JS		 663
664 /* Now we to find out if the NPort we are logging into, matches the WWPN
665 * we have for that ndlp. If not, we have some work to do.
666 */
667 new_ndlp = lpfc_findnode_wwpn(phba, NLP_SEARCH_ALL, &sp->portName);
668
92795650 669 if (new_ndlp == ndlp)
488d1469 670 return ndlp;
488d1469
JS		 671
672 if (!new_ndlp) {
92795650
JS		 673 rc =
674 memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name));
675 if (!rc)
676 return ndlp;
488d1469
JS		 677 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
678 if (!new_ndlp)
679 return ndlp;
680
681 lpfc_nlp_init(phba, new_ndlp, ndlp->nlp_DID);
682 }
683
684 lpfc_unreg_rpi(phba, new_ndlp);
488d1469 685 new_ndlp->nlp_DID = ndlp->nlp_DID;
92795650
JS		 686 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
687 new_ndlp->nlp_state = ndlp->nlp_state;
688 lpfc_nlp_list(phba, new_ndlp, ndlp->nlp_flag & NLP_LIST_MASK);
488d1469
JS		 689
690 /* Move this back to NPR list */
92795650
JS		 691 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
692 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
693 }
694 else {
695 lpfc_unreg_rpi(phba, ndlp);
696 ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */
697 ndlp->nlp_state = NLP_STE_NPR_NODE;
698 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
699 }
488d1469
JS		 700 return new_ndlp;
701}
702
dea3101e
JB		 703static void
704lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
705 struct lpfc_iocbq * rspiocb)
706{
707 IOCB_t *irsp;
dea3101e 708 struct lpfc_nodelist *ndlp;
92795650 709 struct lpfc_dmabuf *prsp;
dea3101e
JB		 710 int disc, rc, did, type;
711
dea3101e
JB		 712
713 /* we pass cmdiocb to state machine which needs rspiocb as well */
714 cmdiocb->context_un.rsp_iocb = rspiocb;
715
716 irsp = &rspiocb->iocb;
488d1469
JS		 717 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL,
718 irsp->un.elsreq64.remoteID);
719 if (!ndlp)
720 goto out;
dea3101e
JB		 721
722 /* Since ndlp can be freed in the disc state machine, note if this node
723 * is being used during discovery.
724 */
725 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
c9f8735b 726 spin_lock_irq(phba->host->host_lock);
488d1469 727 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
c9f8735b 728 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 729 rc = 0;
730
731 /* PLOGI completes to NPort <nlp_DID> */
732 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
733 "%d:0102 PLOGI completes to NPort x%x "
c9f8735b 734 "Data: x%x x%x x%x x%x x%x\n",
dea3101e 735 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
c9f8735b
JW		 736 irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
737 phba->num_disc_nodes);
dea3101e
JB		 738
739 /* Check to see if link went down during discovery */
740 if (lpfc_els_chk_latt(phba)) {
741 spin_lock_irq(phba->host->host_lock);
742 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
743 spin_unlock_irq(phba->host->host_lock);
744 goto out;
745 }
746
747 /* ndlp could be freed in DSM, save these values now */
748 type = ndlp->nlp_type;
749 did = ndlp->nlp_DID;
750
751 if (irsp->ulpStatus) {
752 /* Check for retry */
753 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
754 /* ELS command is being retried */
755 if (disc) {
756 spin_lock_irq(phba->host->host_lock);
757 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
758 spin_unlock_irq(phba->host->host_lock);
759 }
760 goto out;
761 }
762
763 /* PLOGI failed */
764 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
765 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
766 ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
6281bfe0 767 (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
dea3101e 768 (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
c9f8735b 769 rc = NLP_STE_FREED_NODE;
2fe165b6 770 } else {
dea3101e
JB		 771 rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
772 NLP_EVT_CMPL_PLOGI);
773 }
774 } else {
775 /* Good status, call state machine */
92795650
JS		 776 prsp = list_entry(((struct lpfc_dmabuf *)
777 cmdiocb->context2)->list.next,
778 struct lpfc_dmabuf, list);
779 ndlp = lpfc_plogi_confirm_nport(phba, prsp, ndlp);
dea3101e
JB		 780 rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
781 NLP_EVT_CMPL_PLOGI);
782 }
783
dea3101e
JB		 784 if (disc && phba->num_disc_nodes) {
785 /* Check to see if there are more PLOGIs to be sent */
786 lpfc_more_plogi(phba);
dea3101e 787
10d4e957
JS		 788 if (phba->num_disc_nodes == 0) {
789 spin_lock_irq(phba->host->host_lock);
790 phba->fc_flag &= ~FC_NDISC_ACTIVE;
791 spin_unlock_irq(phba->host->host_lock);
dea3101e 792
10d4e957
JS		 793 lpfc_can_disctmo(phba);
794 if (phba->fc_flag & FC_RSCN_MODE) {
795 /*
796 * Check to see if more RSCNs came in while
797 * we were processing this one.
798 */
799 if ((phba->fc_rscn_id_cnt == 0) &&
800 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
801 spin_lock_irq(phba->host->host_lock);
802 phba->fc_flag &= ~FC_RSCN_MODE;
803 spin_unlock_irq(phba->host->host_lock);
804 } else {
805 lpfc_els_handle_rscn(phba);
806 }
dea3101e
JB		 807 }
808 }
809 }
810
811out:
812 lpfc_els_free_iocb(phba, cmdiocb);
813 return;
814}
815
816int
488d1469 817lpfc_issue_els_plogi(struct lpfc_hba * phba, uint32_t did, uint8_t retry)
dea3101e
JB		 818{
819 struct serv_parm *sp;
820 IOCB_t *icmd;
821 struct lpfc_iocbq *elsiocb;
822 struct lpfc_sli_ring *pring;
823 struct lpfc_sli *psli;
824 uint8_t *pcmd;
825 uint16_t cmdsize;
826
827 psli = &phba->sli;
828 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
829
830 cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
041976fb 831 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, NULL, did,
2fe165b6 832 ELS_CMD_PLOGI);
c9f8735b
JW		 833 if (!elsiocb)
834 return 1;
dea3101e
JB		 835
836 icmd = &elsiocb->iocb;
837 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
838
839 /* For PLOGI request, remainder of payload is service parameters */
840 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
841 pcmd += sizeof (uint32_t);
842 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
843 sp = (struct serv_parm *) pcmd;
844
845 if (sp->cmn.fcphLow < FC_PH_4_3)
846 sp->cmn.fcphLow = FC_PH_4_3;
847
848 if (sp->cmn.fcphHigh < FC_PH3)
849 sp->cmn.fcphHigh = FC_PH3;
850
851 phba->fc_stat.elsXmitPLOGI++;
852 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
853 spin_lock_irq(phba->host->host_lock);
dea3101e 854 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
dea3101e
JB		 855 spin_unlock_irq(phba->host->host_lock);
856 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 857 return 1;
dea3101e
JB		 858 }
859 spin_unlock_irq(phba->host->host_lock);
c9f8735b 860 return 0;
dea3101e
JB		 861}
862
863static void
864lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
865 struct lpfc_iocbq * rspiocb)
866{
867 IOCB_t *irsp;
868 struct lpfc_sli *psli;
869 struct lpfc_nodelist *ndlp;
870
871 psli = &phba->sli;
872 /* we pass cmdiocb to state machine which needs rspiocb as well */
873 cmdiocb->context_un.rsp_iocb = rspiocb;
874
875 irsp = &(rspiocb->iocb);
876 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
877 spin_lock_irq(phba->host->host_lock);
878 ndlp->nlp_flag &= ~NLP_PRLI_SND;
879 spin_unlock_irq(phba->host->host_lock);
880
881 /* PRLI completes to NPort <nlp_DID> */
882 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
883 "%d:0103 PRLI completes to NPort x%x "
c9f8735b 884 "Data: x%x x%x x%x x%x\n",
dea3101e 885 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
c9f8735b
JW		 886 irsp->un.ulpWord[4], irsp->ulpTimeout,
887 phba->num_disc_nodes);
dea3101e
JB		 888
889 phba->fc_prli_sent--;
890 /* Check to see if link went down during discovery */
891 if (lpfc_els_chk_latt(phba))
892 goto out;
893
894 if (irsp->ulpStatus) {
895 /* Check for retry */
896 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
897 /* ELS command is being retried */
898 goto out;
899 }
900 /* PRLI failed */
901 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
902 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
903 ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
6281bfe0 904 (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
dea3101e
JB		 905 (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
906 goto out;
2fe165b6 907 } else {
dea3101e
JB		 908 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
909 NLP_EVT_CMPL_PRLI);
910 }
911 } else {
912 /* Good status, call state machine */
913 lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI);
914 }
915
916out:
917 lpfc_els_free_iocb(phba, cmdiocb);
918 return;
919}
920
921int
922lpfc_issue_els_prli(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
923 uint8_t retry)
924{
925 PRLI *npr;
926 IOCB_t *icmd;
927 struct lpfc_iocbq *elsiocb;
928 struct lpfc_sli_ring *pring;
929 struct lpfc_sli *psli;
930 uint8_t *pcmd;
931 uint16_t cmdsize;
932
933 psli = &phba->sli;
934 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
935
936 cmdsize = (sizeof (uint32_t) + sizeof (PRLI));
488d1469
JS		 937 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
938 ndlp->nlp_DID, ELS_CMD_PRLI);
939 if (!elsiocb)
c9f8735b 940 return 1;
dea3101e
JB		 941
942 icmd = &elsiocb->iocb;
943 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
944
945 /* For PRLI request, remainder of payload is service parameters */
946 memset(pcmd, 0, (sizeof (PRLI) + sizeof (uint32_t)));
947 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
948 pcmd += sizeof (uint32_t);
949
950 /* For PRLI, remainder of payload is PRLI parameter page */
951 npr = (PRLI *) pcmd;
952 /*
953 * If our firmware version is 3.20 or later,
954 * set the following bits for FC-TAPE support.
955 */
956 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
957 npr->ConfmComplAllowed = 1;
958 npr->Retry = 1;
959 npr->TaskRetryIdReq = 1;
960 }
961 npr->estabImagePair = 1;
962 npr->readXferRdyDis = 1;
963
964 /* For FCP support */
965 npr->prliType = PRLI_FCP_TYPE;
966 npr->initiatorFunc = 1;
967
968 phba->fc_stat.elsXmitPRLI++;
969 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
970 spin_lock_irq(phba->host->host_lock);
971 ndlp->nlp_flag |= NLP_PRLI_SND;
972 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
973 ndlp->nlp_flag &= ~NLP_PRLI_SND;
974 spin_unlock_irq(phba->host->host_lock);
975 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 976 return 1;
dea3101e
JB		 977 }
978 spin_unlock_irq(phba->host->host_lock);
979 phba->fc_prli_sent++;
c9f8735b 980 return 0;
dea3101e
JB		 981}
982
983static void
984lpfc_more_adisc(struct lpfc_hba * phba)
985{
986 int sentadisc;
987
988 if (phba->num_disc_nodes)
989 phba->num_disc_nodes--;
990
991 /* Continue discovery with <num_disc_nodes> ADISCs to go */
992 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
993 "%d:0210 Continue discovery with %d ADISCs to go "
994 "Data: x%x x%x x%x\n",
995 phba->brd_no, phba->num_disc_nodes, phba->fc_adisc_cnt,
996 phba->fc_flag, phba->hba_state);
997
998 /* Check to see if there are more ADISCs to be sent */
999 if (phba->fc_flag & FC_NLP_MORE) {
1000 lpfc_set_disctmo(phba);
1001
1002 /* go thru NPR list and issue any remaining ELS ADISCs */
1003 sentadisc = lpfc_els_disc_adisc(phba);
1004 }
1005 return;
1006}
1007
1008static void
1009lpfc_rscn_disc(struct lpfc_hba * phba)
1010{
1011 /* RSCN discovery */
1012 /* go thru NPR list and issue ELS PLOGIs */
1013 if (phba->fc_npr_cnt) {
1014 if (lpfc_els_disc_plogi(phba))
1015 return;
1016 }
1017 if (phba->fc_flag & FC_RSCN_MODE) {
1018 /* Check to see if more RSCNs came in while we were
1019 * processing this one.
1020 */
1021 if ((phba->fc_rscn_id_cnt == 0) &&
1022 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1023 spin_lock_irq(phba->host->host_lock);
1024 phba->fc_flag &= ~FC_RSCN_MODE;
1025 spin_unlock_irq(phba->host->host_lock);
1026 } else {
1027 lpfc_els_handle_rscn(phba);
1028 }
1029 }
1030}
1031
1032static void
1033lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1034 struct lpfc_iocbq * rspiocb)
1035{
1036 IOCB_t *irsp;
1037 struct lpfc_sli *psli;
1038 struct lpfc_nodelist *ndlp;
1039 LPFC_MBOXQ_t *mbox;
1040 int disc, rc;
1041
1042 psli = &phba->sli;
1043
1044 /* we pass cmdiocb to state machine which needs rspiocb as well */
1045 cmdiocb->context_un.rsp_iocb = rspiocb;
1046
1047 irsp = &(rspiocb->iocb);
1048 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
dea3101e
JB		 1049
1050 /* Since ndlp can be freed in the disc state machine, note if this node
1051 * is being used during discovery.
1052 */
1053 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
c9f8735b
JW		 1054 spin_lock_irq(phba->host->host_lock);
1055 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
1056 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 1057
1058 /* ADISC completes to NPort <nlp_DID> */
1059 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1060 "%d:0104 ADISC completes to NPort x%x "
c9f8735b 1061 "Data: x%x x%x x%x x%x x%x\n",
dea3101e 1062 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
c9f8735b
JW		 1063 irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
1064 phba->num_disc_nodes);
dea3101e
JB		 1065
1066 /* Check to see if link went down during discovery */
1067 if (lpfc_els_chk_latt(phba)) {
1068 spin_lock_irq(phba->host->host_lock);
1069 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1070 spin_unlock_irq(phba->host->host_lock);
1071 goto out;
1072 }
1073
1074 if (irsp->ulpStatus) {
1075 /* Check for retry */
1076 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1077 /* ELS command is being retried */
1078 if (disc) {
1079 spin_lock_irq(phba->host->host_lock);
1080 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1081 spin_unlock_irq(phba->host->host_lock);
1082 lpfc_set_disctmo(phba);
1083 }
1084 goto out;
1085 }
1086 /* ADISC failed */
1087 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
c9f8735b
JW		 1088 if ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1089 ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) &&
1090 (irsp->un.ulpWord[4] != IOERR_LINK_DOWN) &&
1091 (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) {
dea3101e
JB		 1092 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1093 NLP_EVT_CMPL_ADISC);
1094 }
1095 } else {
1096 /* Good status, call state machine */
1097 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1098 NLP_EVT_CMPL_ADISC);
1099 }
1100
1101 if (disc && phba->num_disc_nodes) {
1102 /* Check to see if there are more ADISCs to be sent */
1103 lpfc_more_adisc(phba);
1104
1105 /* Check to see if we are done with ADISC authentication */
1106 if (phba->num_disc_nodes == 0) {
1107 lpfc_can_disctmo(phba);
1108 /* If we get here, there is nothing left to wait for */
1109 if ((phba->hba_state < LPFC_HBA_READY) &&
1110 (phba->hba_state != LPFC_CLEAR_LA)) {
1111 /* Link up discovery */
1112 if ((mbox = mempool_alloc(phba->mbox_mem_pool,
1113 GFP_KERNEL))) {
1114 phba->hba_state = LPFC_CLEAR_LA;
1115 lpfc_clear_la(phba, mbox);
1116 mbox->mbox_cmpl =
1117 lpfc_mbx_cmpl_clear_la;
1118 rc = lpfc_sli_issue_mbox
1119 (phba, mbox,
1120 (MBX_NOWAIT | MBX_STOP_IOCB));
1121 if (rc == MBX_NOT_FINISHED) {
1122 mempool_free(mbox,
1123 phba->mbox_mem_pool);
1124 lpfc_disc_flush_list(phba);
1125 psli->ring[(psli->ip_ring)].
1126 flag &=
1127 ~LPFC_STOP_IOCB_EVENT;
1128 psli->ring[(psli->fcp_ring)].
1129 flag &=
1130 ~LPFC_STOP_IOCB_EVENT;
1131 psli->ring[(psli->next_ring)].
1132 flag &=
1133 ~LPFC_STOP_IOCB_EVENT;
1134 phba->hba_state =
1135 LPFC_HBA_READY;
1136 }
1137 }
1138 } else {
1139 lpfc_rscn_disc(phba);
1140 }
1141 }
1142 }
dea3101e
JB		 1143out:
1144 lpfc_els_free_iocb(phba, cmdiocb);
1145 return;
1146}
1147
1148int
1149lpfc_issue_els_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
1150 uint8_t retry)
1151{
1152 ADISC *ap;
1153 IOCB_t *icmd;
1154 struct lpfc_iocbq *elsiocb;
1155 struct lpfc_sli_ring *pring;
1156 struct lpfc_sli *psli;
1157 uint8_t *pcmd;
1158 uint16_t cmdsize;
1159
1160 psli = &phba->sli;
1161 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1162
1163 cmdsize = (sizeof (uint32_t) + sizeof (ADISC));
488d1469
JS		 1164 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1165 ndlp->nlp_DID, ELS_CMD_ADISC);
1166 if (!elsiocb)
c9f8735b 1167 return 1;
dea3101e
JB		 1168
1169 icmd = &elsiocb->iocb;
1170 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1171
1172 /* For ADISC request, remainder of payload is service parameters */
1173 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
1174 pcmd += sizeof (uint32_t);
1175
1176 /* Fill in ADISC payload */
1177 ap = (ADISC *) pcmd;
1178 ap->hardAL_PA = phba->fc_pref_ALPA;
1179 memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
1180 memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1181 ap->DID = be32_to_cpu(phba->fc_myDID);
1182
1183 phba->fc_stat.elsXmitADISC++;
1184 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
1185 spin_lock_irq(phba->host->host_lock);
1186 ndlp->nlp_flag |= NLP_ADISC_SND;
1187 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1188 ndlp->nlp_flag &= ~NLP_ADISC_SND;
1189 spin_unlock_irq(phba->host->host_lock);
1190 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 1191 return 1;
dea3101e
JB		 1192 }
1193 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1194 return 0;
dea3101e
JB		 1195}
1196
1197static void
1198lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1199 struct lpfc_iocbq * rspiocb)
1200{
1201 IOCB_t *irsp;
1202 struct lpfc_sli *psli;
1203 struct lpfc_nodelist *ndlp;
1204
1205 psli = &phba->sli;
1206 /* we pass cmdiocb to state machine which needs rspiocb as well */
1207 cmdiocb->context_un.rsp_iocb = rspiocb;
1208
1209 irsp = &(rspiocb->iocb);
1210 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1211 spin_lock_irq(phba->host->host_lock);
1212 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1213 spin_unlock_irq(phba->host->host_lock);
1214
1215 /* LOGO completes to NPort <nlp_DID> */
1216 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1217 "%d:0105 LOGO completes to NPort x%x "
c9f8735b 1218 "Data: x%x x%x x%x x%x\n",
dea3101e 1219 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
c9f8735b
JW		 1220 irsp->un.ulpWord[4], irsp->ulpTimeout,
1221 phba->num_disc_nodes);
dea3101e
JB		 1222
1223 /* Check to see if link went down during discovery */
1224 if (lpfc_els_chk_latt(phba))
1225 goto out;
1226
1227 if (irsp->ulpStatus) {
1228 /* Check for retry */
1229 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1230 /* ELS command is being retried */
1231 goto out;
1232 }
1233 /* LOGO failed */
1234 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1235 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1236 ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
6281bfe0 1237 (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
dea3101e
JB		 1238 (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
1239 goto out;
2fe165b6 1240 } else {
dea3101e
JB		 1241 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1242 NLP_EVT_CMPL_LOGO);
1243 }
1244 } else {
5024ab17
JW		 1245 /* Good status, call state machine.
1246 * This will unregister the rpi if needed.
1247 */
dea3101e 1248 lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
dea3101e
JB		 1249 }
1250
1251out:
1252 lpfc_els_free_iocb(phba, cmdiocb);
1253 return;
1254}
1255
1256int
1257lpfc_issue_els_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
1258 uint8_t retry)
1259{
1260 IOCB_t *icmd;
1261 struct lpfc_iocbq *elsiocb;
1262 struct lpfc_sli_ring *pring;
1263 struct lpfc_sli *psli;
1264 uint8_t *pcmd;
1265 uint16_t cmdsize;
1266
1267 psli = &phba->sli;
1268 pring = &psli->ring[LPFC_ELS_RING];
1269
10d4e957 1270 cmdsize = (2 * sizeof (uint32_t)) + sizeof (struct lpfc_name);
488d1469
JS		 1271 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1272 ndlp->nlp_DID, ELS_CMD_LOGO);
1273 if (!elsiocb)
c9f8735b 1274 return 1;
dea3101e
JB		 1275
1276 icmd = &elsiocb->iocb;
1277 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1278 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
1279 pcmd += sizeof (uint32_t);
1280
1281 /* Fill in LOGO payload */
1282 *((uint32_t *) (pcmd)) = be32_to_cpu(phba->fc_myDID);
1283 pcmd += sizeof (uint32_t);
1284 memcpy(pcmd, &phba->fc_portname, sizeof (struct lpfc_name));
1285
1286 phba->fc_stat.elsXmitLOGO++;
1287 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
1288 spin_lock_irq(phba->host->host_lock);
1289 ndlp->nlp_flag |= NLP_LOGO_SND;
1290 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1291 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1292 spin_unlock_irq(phba->host->host_lock);
1293 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 1294 return 1;
dea3101e
JB		 1295 }
1296 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1297 return 0;
dea3101e
JB		 1298}
1299
1300static void
1301lpfc_cmpl_els_cmd(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1302 struct lpfc_iocbq * rspiocb)
1303{
1304 IOCB_t *irsp;
1305
1306 irsp = &rspiocb->iocb;
1307
1308 /* ELS cmd tag <ulpIoTag> completes */
1309 lpfc_printf_log(phba,
1310 KERN_INFO,
1311 LOG_ELS,
c9f8735b 1312 "%d:0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
dea3101e 1313 phba->brd_no,
c9f8735b
JW		 1314 irsp->ulpIoTag, irsp->ulpStatus,
1315 irsp->un.ulpWord[4], irsp->ulpTimeout);
dea3101e
JB		 1316
1317 /* Check to see if link went down during discovery */
1318 lpfc_els_chk_latt(phba);
1319 lpfc_els_free_iocb(phba, cmdiocb);
1320 return;
1321}
1322
1323int
1324lpfc_issue_els_scr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
1325{
1326 IOCB_t *icmd;
1327 struct lpfc_iocbq *elsiocb;
1328 struct lpfc_sli_ring *pring;
1329 struct lpfc_sli *psli;
1330 uint8_t *pcmd;
1331 uint16_t cmdsize;
1332 struct lpfc_nodelist *ndlp;
1333
1334 psli = &phba->sli;
1335 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1336 cmdsize = (sizeof (uint32_t) + sizeof (SCR));
c9f8735b
JW		 1337 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1338 if (!ndlp)
1339 return 1;
dea3101e
JB		 1340
1341 lpfc_nlp_init(phba, ndlp, nportid);
1342
488d1469
JS		 1343 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1344 ndlp->nlp_DID, ELS_CMD_SCR);
1345 if (!elsiocb) {
dea3101e 1346 mempool_free( ndlp, phba->nlp_mem_pool);
c9f8735b 1347 return 1;
dea3101e
JB		 1348 }
1349
1350 icmd = &elsiocb->iocb;
1351 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1352
1353 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
1354 pcmd += sizeof (uint32_t);
1355
1356 /* For SCR, remainder of payload is SCR parameter page */
1357 memset(pcmd, 0, sizeof (SCR));
1358 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
1359
1360 phba->fc_stat.elsXmitSCR++;
1361 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1362 spin_lock_irq(phba->host->host_lock);
1363 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1364 spin_unlock_irq(phba->host->host_lock);
1365 mempool_free( ndlp, phba->nlp_mem_pool);
1366 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 1367 return 1;
dea3101e
JB		 1368 }
1369 spin_unlock_irq(phba->host->host_lock);
1370 mempool_free( ndlp, phba->nlp_mem_pool);
c9f8735b 1371 return 0;
dea3101e
JB		 1372}
1373
1374static int
1375lpfc_issue_els_farpr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
1376{
1377 IOCB_t *icmd;
1378 struct lpfc_iocbq *elsiocb;
1379 struct lpfc_sli_ring *pring;
1380 struct lpfc_sli *psli;
1381 FARP *fp;
1382 uint8_t *pcmd;
1383 uint32_t *lp;
1384 uint16_t cmdsize;
1385 struct lpfc_nodelist *ondlp;
1386 struct lpfc_nodelist *ndlp;
1387
1388 psli = &phba->sli;
1389 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1390 cmdsize = (sizeof (uint32_t) + sizeof (FARP));
c9f8735b
JW		 1391 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1392 if (!ndlp)
1393 return 1;
dea3101e
JB		 1394 lpfc_nlp_init(phba, ndlp, nportid);
1395
488d1469
JS		 1396 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1397 ndlp->nlp_DID, ELS_CMD_RNID);
1398 if (!elsiocb) {
dea3101e 1399 mempool_free( ndlp, phba->nlp_mem_pool);
c9f8735b 1400 return 1;
dea3101e
JB		 1401 }
1402
1403 icmd = &elsiocb->iocb;
1404 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1405
1406 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
1407 pcmd += sizeof (uint32_t);
1408
1409 /* Fill in FARPR payload */
1410 fp = (FARP *) (pcmd);
1411 memset(fp, 0, sizeof (FARP));
1412 lp = (uint32_t *) pcmd;
1413 *lp++ = be32_to_cpu(nportid);
1414 *lp++ = be32_to_cpu(phba->fc_myDID);
1415 fp->Rflags = 0;
1416 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
1417
1418 memcpy(&fp->RportName, &phba->fc_portname, sizeof (struct lpfc_name));
1419 memcpy(&fp->RnodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1420 if ((ondlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, nportid))) {
1421 memcpy(&fp->OportName, &ondlp->nlp_portname,
1422 sizeof (struct lpfc_name));
1423 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
1424 sizeof (struct lpfc_name));
1425 }
1426
1427 phba->fc_stat.elsXmitFARPR++;
1428 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1429 spin_lock_irq(phba->host->host_lock);
1430 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1431 spin_unlock_irq(phba->host->host_lock);
1432 mempool_free( ndlp, phba->nlp_mem_pool);
1433 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 1434 return 1;
dea3101e
JB		 1435 }
1436 spin_unlock_irq(phba->host->host_lock);
1437 mempool_free( ndlp, phba->nlp_mem_pool);
c9f8735b 1438 return 0;
dea3101e
JB		 1439}
1440
fdcebe28
JS		 1441void
1442lpfc_cancel_retry_delay_tmo(struct lpfc_hba *phba, struct lpfc_nodelist * nlp)
1443{
1444 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1445 del_timer_sync(&nlp->nlp_delayfunc);
1446 nlp->nlp_last_elscmd = 0;
1447
1448 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1449 list_del_init(&nlp->els_retry_evt.evt_listp);
1450
1451 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
1452 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1453 if (phba->num_disc_nodes) {
1454 /* Check to see if there are more
1455 * PLOGIs to be sent
1456 */
1457 lpfc_more_plogi(phba);
fdcebe28 1458
10d4e957
JS		 1459 if (phba->num_disc_nodes == 0) {
1460 phba->fc_flag &= ~FC_NDISC_ACTIVE;
1461 lpfc_can_disctmo(phba);
1462 if (phba->fc_flag & FC_RSCN_MODE) {
1463 /*
1464 * Check to see if more RSCNs
1465 * came in while we were
1466 * processing this one.
1467 */
1468 if((phba->fc_rscn_id_cnt==0) &&
1469 !(phba->fc_flag & FC_RSCN_DISCOVERY)) {
1470 phba->fc_flag &= ~FC_RSCN_MODE;
1471 }
1472 else {
1473 lpfc_els_handle_rscn(phba);
1474 }
fdcebe28
JS		 1475 }
1476 }
1477 }
1478 }
1479 return;
1480}
1481
dea3101e
JB		 1482void
1483lpfc_els_retry_delay(unsigned long ptr)
1484{
1485 struct lpfc_nodelist *ndlp;
1486 struct lpfc_hba *phba;
1487 unsigned long iflag;
1488 struct lpfc_work_evt *evtp;
1489
1490 ndlp = (struct lpfc_nodelist *)ptr;
1491 phba = ndlp->nlp_phba;
1492 evtp = &ndlp->els_retry_evt;
1493
1494 spin_lock_irqsave(phba->host->host_lock, iflag);
1495 if (!list_empty(&evtp->evt_listp)) {
1496 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1497 return;
1498 }
1499
1500 evtp->evt_arg1 = ndlp;
1501 evtp->evt = LPFC_EVT_ELS_RETRY;
1502 list_add_tail(&evtp->evt_listp, &phba->work_list);
1503 if (phba->work_wait)
1504 wake_up(phba->work_wait);
1505
1506 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1507 return;
1508}
1509
1510void
1511lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
1512{
1513 struct lpfc_hba *phba;
1514 uint32_t cmd;
1515 uint32_t did;
1516 uint8_t retry;
1517
1518 phba = ndlp->nlp_phba;
1519 spin_lock_irq(phba->host->host_lock);
5024ab17
JW		 1520 did = ndlp->nlp_DID;
1521 cmd = ndlp->nlp_last_elscmd;
1522 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 1523
1524 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1525 spin_unlock_irq(phba->host->host_lock);
1526 return;
1527 }
1528
1529 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1530 spin_unlock_irq(phba->host->host_lock);
1a169689
JS		 1531 /*
1532 * If a discovery event readded nlp_delayfunc after timer
1533 * firing and before processing the timer, cancel the
1534 * nlp_delayfunc.
1535 */
1536 del_timer_sync(&ndlp->nlp_delayfunc);
dea3101e
JB		 1537 retry = ndlp->nlp_retry;
1538
1539 switch (cmd) {
1540 case ELS_CMD_FLOGI:
1541 lpfc_issue_els_flogi(phba, ndlp, retry);
1542 break;
1543 case ELS_CMD_PLOGI:
488d1469 1544 if(!lpfc_issue_els_plogi(phba, ndlp->nlp_DID, retry)) {
5024ab17 1545 ndlp->nlp_prev_state = ndlp->nlp_state;
6ad42535
JW		 1546 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1547 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1548 }
dea3101e
JB		 1549 break;
1550 case ELS_CMD_ADISC:
6ad42535 1551 if (!lpfc_issue_els_adisc(phba, ndlp, retry)) {
5024ab17 1552 ndlp->nlp_prev_state = ndlp->nlp_state;
6ad42535
JW		 1553 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1554 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1555 }
dea3101e
JB		 1556 break;
1557 case ELS_CMD_PRLI:
6ad42535 1558 if (!lpfc_issue_els_prli(phba, ndlp, retry)) {
5024ab17 1559 ndlp->nlp_prev_state = ndlp->nlp_state;
6ad42535
JW		 1560 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1561 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1562 }
dea3101e
JB		 1563 break;
1564 case ELS_CMD_LOGO:
6ad42535 1565 if (!lpfc_issue_els_logo(phba, ndlp, retry)) {
5024ab17 1566 ndlp->nlp_prev_state = ndlp->nlp_state;
6ad42535
JW		 1567 ndlp->nlp_state = NLP_STE_NPR_NODE;
1568 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1569 }
dea3101e
JB		 1570 break;
1571 }
1572 return;
1573}
1574
1575static int
1576lpfc_els_retry(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1577 struct lpfc_iocbq * rspiocb)
1578{
1579 IOCB_t *irsp;
1580 struct lpfc_dmabuf *pcmd;
1581 struct lpfc_nodelist *ndlp;
1582 uint32_t *elscmd;
1583 struct ls_rjt stat;
1584 int retry, maxretry;
1585 int delay;
1586 uint32_t cmd;
488d1469 1587 uint32_t did;
dea3101e
JB		 1588
1589 retry = 0;
1590 delay = 0;
1591 maxretry = lpfc_max_els_tries;
1592 irsp = &rspiocb->iocb;
1593 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1594 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1595 cmd = 0;
488d1469 1596
dea3101e
JB		 1597 /* Note: context2 may be 0 for internal driver abort
1598 * of delays ELS command.
1599 */
1600
1601 if (pcmd && pcmd->virt) {
1602 elscmd = (uint32_t *) (pcmd->virt);
1603 cmd = *elscmd++;
1604 }
1605
488d1469
JS		 1606 if(ndlp)
1607 did = ndlp->nlp_DID;
1608 else {
1609 /* We should only hit this case for retrying PLOGI */
1610 did = irsp->un.elsreq64.remoteID;
1611 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1612 if (!ndlp && (cmd != ELS_CMD_PLOGI))
1613 return 1;
1614 }
1615
dea3101e
JB		 1616 switch (irsp->ulpStatus) {
1617 case IOSTAT_FCP_RSP_ERROR:
1618 case IOSTAT_REMOTE_STOP:
1619 break;
1620
1621 case IOSTAT_LOCAL_REJECT:
1622 switch ((irsp->un.ulpWord[4] & 0xff)) {
1623 case IOERR_LOOP_OPEN_FAILURE:
1624 if (cmd == ELS_CMD_PLOGI) {
1625 if (cmdiocb->retry == 0) {
1626 delay = 1;
1627 }
1628 }
1629 retry = 1;
1630 break;
1631
1632 case IOERR_SEQUENCE_TIMEOUT:
1633 retry = 1;
dea3101e
JB		 1634 break;
1635
1636 case IOERR_NO_RESOURCES:
1637 if (cmd == ELS_CMD_PLOGI) {
1638 delay = 1;
1639 }
1640 retry = 1;
1641 break;
1642
1643 case IOERR_INVALID_RPI:
1644 retry = 1;
1645 break;
1646 }
1647 break;
1648
1649 case IOSTAT_NPORT_RJT:
1650 case IOSTAT_FABRIC_RJT:
1651 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
1652 retry = 1;
1653 break;
1654 }
1655 break;
1656
1657 case IOSTAT_NPORT_BSY:
1658 case IOSTAT_FABRIC_BSY:
1659 retry = 1;
1660 break;
1661
1662 case IOSTAT_LS_RJT:
1663 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
1664 /* Added for Vendor specifc support
1665 * Just keep retrying for these Rsn / Exp codes
1666 */
1667 switch (stat.un.b.lsRjtRsnCode) {
1668 case LSRJT_UNABLE_TPC:
1669 if (stat.un.b.lsRjtRsnCodeExp ==
1670 LSEXP_CMD_IN_PROGRESS) {
1671 if (cmd == ELS_CMD_PLOGI) {
1672 delay = 1;
1673 maxretry = 48;
1674 }
1675 retry = 1;
1676 break;
1677 }
1678 if (cmd == ELS_CMD_PLOGI) {
1679 delay = 1;
1680 maxretry = lpfc_max_els_tries + 1;
1681 retry = 1;
1682 break;
1683 }
1684 break;
1685
1686 case LSRJT_LOGICAL_BSY:
1687 if (cmd == ELS_CMD_PLOGI) {
1688 delay = 1;
1689 maxretry = 48;
1690 }
1691 retry = 1;
1692 break;
1693 }
1694 break;
1695
1696 case IOSTAT_INTERMED_RSP:
1697 case IOSTAT_BA_RJT:
1698 break;
1699
1700 default:
1701 break;
1702 }
1703
488d1469 1704 if (did == FDMI_DID)
dea3101e 1705 retry = 1;
dea3101e
JB		 1706
1707 if ((++cmdiocb->retry) >= maxretry) {
1708 phba->fc_stat.elsRetryExceeded++;
1709 retry = 0;
1710 }
1711
1712 if (retry) {
1713
1714 /* Retry ELS command <elsCmd> to remote NPORT <did> */
1715 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1716 "%d:0107 Retry ELS command x%x to remote "
1717 "NPORT x%x Data: x%x x%x\n",
1718 phba->brd_no,
488d1469 1719 cmd, did, cmdiocb->retry, delay);
dea3101e
JB		 1720
1721 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) {
1722 /* If discovery / RSCN timer is running, reset it */
1723 if (timer_pending(&phba->fc_disctmo) ||
1724 (phba->fc_flag & FC_RSCN_MODE)) {
1725 lpfc_set_disctmo(phba);
1726 }
1727 }
1728
1729 phba->fc_stat.elsXmitRetry++;
488d1469 1730 if (ndlp && delay) {
dea3101e
JB		 1731 phba->fc_stat.elsDelayRetry++;
1732 ndlp->nlp_retry = cmdiocb->retry;
1733
1734 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1735 ndlp->nlp_flag |= NLP_DELAY_TMO;
1736
5024ab17 1737 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 1738 ndlp->nlp_state = NLP_STE_NPR_NODE;
1739 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1740 ndlp->nlp_last_elscmd = cmd;
1741
c9f8735b 1742 return 1;
dea3101e
JB		 1743 }
1744 switch (cmd) {
1745 case ELS_CMD_FLOGI:
1746 lpfc_issue_els_flogi(phba, ndlp, cmdiocb->retry);
c9f8735b 1747 return 1;
dea3101e 1748 case ELS_CMD_PLOGI:
488d1469
JS		 1749 if (ndlp) {
1750 ndlp->nlp_prev_state = ndlp->nlp_state;
1751 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1752 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1753 }
1754 lpfc_issue_els_plogi(phba, did, cmdiocb->retry);
c9f8735b 1755 return 1;
dea3101e 1756 case ELS_CMD_ADISC:
5024ab17 1757 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 1758 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1759 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1760 lpfc_issue_els_adisc(phba, ndlp, cmdiocb->retry);
c9f8735b 1761 return 1;
dea3101e 1762 case ELS_CMD_PRLI:
5024ab17 1763 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 1764 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1765 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1766 lpfc_issue_els_prli(phba, ndlp, cmdiocb->retry);
c9f8735b 1767 return 1;
dea3101e 1768 case ELS_CMD_LOGO:
5024ab17 1769 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 1770 ndlp->nlp_state = NLP_STE_NPR_NODE;
1771 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1772 lpfc_issue_els_logo(phba, ndlp, cmdiocb->retry);
c9f8735b 1773 return 1;
dea3101e
JB		 1774 }
1775 }
1776
1777 /* No retry ELS command <elsCmd> to remote NPORT <did> */
1778 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1779 "%d:0108 No retry ELS command x%x to remote NPORT x%x "
488d1469 1780 "Data: x%x\n",
dea3101e 1781 phba->brd_no,
488d1469 1782 cmd, did, cmdiocb->retry);
dea3101e 1783
c9f8735b 1784 return 0;
dea3101e
JB		 1785}
1786
1787int
1788lpfc_els_free_iocb(struct lpfc_hba * phba, struct lpfc_iocbq * elsiocb)
1789{
1790 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
1791
1792 /* context2 = cmd, context2->next = rsp, context3 = bpl */
1793 if (elsiocb->context2) {
1794 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
1795 /* Free the response before processing the command. */
1796 if (!list_empty(&buf_ptr1->list)) {
1797 list_remove_head(&buf_ptr1->list, buf_ptr,
1798 struct lpfc_dmabuf,
1799 list);
1800 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1801 kfree(buf_ptr);
1802 }
1803 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
1804 kfree(buf_ptr1);
1805 }
1806
1807 if (elsiocb->context3) {
1808 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
1809 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1810 kfree(buf_ptr);
1811 }
1812 spin_lock_irq(phba->host->host_lock);
604a3e30 1813 lpfc_sli_release_iocbq(phba, elsiocb);
dea3101e
JB		 1814 spin_unlock_irq(phba->host->host_lock);
1815 return 0;
1816}
1817
1818static void
1819lpfc_cmpl_els_logo_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1820 struct lpfc_iocbq * rspiocb)
1821{
1822 struct lpfc_nodelist *ndlp;
1823
1824 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1825
1826 /* ACC to LOGO completes to NPort <nlp_DID> */
1827 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1828 "%d:0109 ACC to LOGO completes to NPort x%x "
1829 "Data: x%x x%x x%x\n",
1830 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1831 ndlp->nlp_state, ndlp->nlp_rpi);
1832
dea3101e
JB		 1833 switch (ndlp->nlp_state) {
1834 case NLP_STE_UNUSED_NODE: /* node is just allocated */
1835 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1836 break;
1837 case NLP_STE_NPR_NODE: /* NPort Recovery mode */
1838 lpfc_unreg_rpi(phba, ndlp);
1839 break;
1840 default:
1841 break;
1842 }
1843 lpfc_els_free_iocb(phba, cmdiocb);
1844 return;
1845}
1846
1847static void
1848lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1849 struct lpfc_iocbq * rspiocb)
1850{
1851 struct lpfc_nodelist *ndlp;
1852 LPFC_MBOXQ_t *mbox = NULL;
1853
1854 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1855 if (cmdiocb->context_un.mbox)
1856 mbox = cmdiocb->context_un.mbox;
1857
1858
1859 /* Check to see if link went down during discovery */
1860 if ((lpfc_els_chk_latt(phba)) || !ndlp) {
1861 if (mbox) {
1862 mempool_free( mbox, phba->mbox_mem_pool);
1863 }
1864 goto out;
1865 }
1866
1867 /* ELS response tag <ulpIoTag> completes */
1868 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1869 "%d:0110 ELS response tag x%x completes "
c9f8735b 1870 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
dea3101e
JB		 1871 phba->brd_no,
1872 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
c9f8735b
JW		 1873 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
1874 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
1875 ndlp->nlp_rpi);
dea3101e
JB		 1876
1877 if (mbox) {
1878 if ((rspiocb->iocb.ulpStatus == 0)
1879 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
dea3101e
JB		 1880 lpfc_unreg_rpi(phba, ndlp);
1881 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1882 mbox->context2 = ndlp;
5024ab17 1883 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 1884 ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE;
1885 lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST);
1886 if (lpfc_sli_issue_mbox(phba, mbox,
1887 (MBX_NOWAIT | MBX_STOP_IOCB))
1888 != MBX_NOT_FINISHED) {
1889 goto out;
1890 }
1891 /* NOTE: we should have messages for unsuccessful
1892 reglogin */
1893 mempool_free( mbox, phba->mbox_mem_pool);
1894 } else {
1895 mempool_free( mbox, phba->mbox_mem_pool);
1896 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1897 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
5024ab17 1898 ndlp = NULL;
dea3101e
JB		 1899 }
1900 }
1901 }
1902out:
1903 if (ndlp) {
1904 spin_lock_irq(phba->host->host_lock);
1905 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
1906 spin_unlock_irq(phba->host->host_lock);
1907 }
1908 lpfc_els_free_iocb(phba, cmdiocb);
1909 return;
1910}
1911
1912int
1913lpfc_els_rsp_acc(struct lpfc_hba * phba, uint32_t flag,
1914 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp,
1915 LPFC_MBOXQ_t * mbox, uint8_t newnode)
1916{
1917 IOCB_t *icmd;
1918 IOCB_t *oldcmd;
1919 struct lpfc_iocbq *elsiocb;
1920 struct lpfc_sli_ring *pring;
1921 struct lpfc_sli *psli;
1922 uint8_t *pcmd;
1923 uint16_t cmdsize;
1924 int rc;
82d9a2a2 1925 ELS_PKT *els_pkt_ptr;
dea3101e
JB		 1926
1927 psli = &phba->sli;
1928 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1929 oldcmd = &oldiocb->iocb;
1930
1931 switch (flag) {
1932 case ELS_CMD_ACC:
1933 cmdsize = sizeof (uint32_t);
488d1469
JS		 1934 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1935 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
1936 if (!elsiocb) {
5024ab17 1937 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
c9f8735b 1938 return 1;
dea3101e
JB		 1939 }
1940 icmd = &elsiocb->iocb;
1941 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1942 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1943 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1944 pcmd += sizeof (uint32_t);
1945 break;
1946 case ELS_CMD_PLOGI:
1947 cmdsize = (sizeof (struct serv_parm) + sizeof (uint32_t));
488d1469
JS		 1948 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1949 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
1950 if (!elsiocb)
c9f8735b 1951 return 1;
488d1469 1952
dea3101e
JB		 1953 icmd = &elsiocb->iocb;
1954 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1955 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1956
1957 if (mbox)
1958 elsiocb->context_un.mbox = mbox;
1959
1960 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1961 pcmd += sizeof (uint32_t);
1962 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
1963 break;
82d9a2a2
JS		 1964 case ELS_CMD_PRLO:
1965 cmdsize = sizeof (uint32_t) + sizeof (PRLO);
1966 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1967 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
1968 if (!elsiocb)
1969 return 1;
1970
1971 icmd = &elsiocb->iocb;
1972 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1973 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1974
1975 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
1976 sizeof (uint32_t) + sizeof (PRLO));
1977 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
1978 els_pkt_ptr = (ELS_PKT *) pcmd;
1979 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
1980 break;
dea3101e 1981 default:
c9f8735b 1982 return 1;
dea3101e
JB		 1983 }
1984
1985 if (newnode)
1986 elsiocb->context1 = NULL;
1987
1988 /* Xmit ELS ACC response tag <ulpIoTag> */
1989 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1990 "%d:0128 Xmit ELS ACC response tag x%x "
1991 "Data: x%x x%x x%x x%x x%x\n",
1992 phba->brd_no,
1993 elsiocb->iocb.ulpIoTag,
1994 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
1995 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
1996
1997 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
c9f8735b
JW		 1998 spin_lock_irq(phba->host->host_lock);
1999 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2000 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 2001 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
2002 } else {
2003 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2004 }
2005
2006 phba->fc_stat.elsXmitACC++;
2007 spin_lock_irq(phba->host->host_lock);
2008 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2009 spin_unlock_irq(phba->host->host_lock);
2010 if (rc == IOCB_ERROR) {
2011 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2012 return 1;
dea3101e 2013 }
c9f8735b 2014 return 0;
dea3101e
JB		 2015}
2016
2017int
2018lpfc_els_rsp_reject(struct lpfc_hba * phba, uint32_t rejectError,
2019 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2020{
2021 IOCB_t *icmd;
2022 IOCB_t *oldcmd;
2023 struct lpfc_iocbq *elsiocb;
2024 struct lpfc_sli_ring *pring;
2025 struct lpfc_sli *psli;
2026 uint8_t *pcmd;
2027 uint16_t cmdsize;
2028 int rc;
2029
2030 psli = &phba->sli;
2031 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2032
2033 cmdsize = 2 * sizeof (uint32_t);
488d1469
JS		 2034 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2035 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
2036 if (!elsiocb)
c9f8735b 2037 return 1;
dea3101e
JB		 2038
2039 icmd = &elsiocb->iocb;
2040 oldcmd = &oldiocb->iocb;
2041 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2042 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2043
2044 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
2045 pcmd += sizeof (uint32_t);
2046 *((uint32_t *) (pcmd)) = rejectError;
2047
2048 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
2049 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2050 "%d:0129 Xmit ELS RJT x%x response tag x%x "
2051 "Data: x%x x%x x%x x%x x%x\n",
2052 phba->brd_no,
2053 rejectError, elsiocb->iocb.ulpIoTag,
2054 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2055 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2056
2057 phba->fc_stat.elsXmitLSRJT++;
2058 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2059 spin_lock_irq(phba->host->host_lock);
2060 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2061 spin_unlock_irq(phba->host->host_lock);
2062 if (rc == IOCB_ERROR) {
2063 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2064 return 1;
dea3101e 2065 }
c9f8735b 2066 return 0;
dea3101e
JB		 2067}
2068
2069int
2070lpfc_els_rsp_adisc_acc(struct lpfc_hba * phba,
2071 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2072{
2073 ADISC *ap;
2074 IOCB_t *icmd;
2075 IOCB_t *oldcmd;
2076 struct lpfc_iocbq *elsiocb;
2077 struct lpfc_sli_ring *pring;
2078 struct lpfc_sli *psli;
2079 uint8_t *pcmd;
2080 uint16_t cmdsize;
2081 int rc;
2082
2083 psli = &phba->sli;
2084 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2085
2086 cmdsize = sizeof (uint32_t) + sizeof (ADISC);
488d1469
JS		 2087 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2088 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2089 if (!elsiocb)
c9f8735b 2090 return 1;
dea3101e
JB		 2091
2092 /* Xmit ADISC ACC response tag <ulpIoTag> */
2093 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2094 "%d:0130 Xmit ADISC ACC response tag x%x "
2095 "Data: x%x x%x x%x x%x x%x\n",
2096 phba->brd_no,
2097 elsiocb->iocb.ulpIoTag,
2098 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2099 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2100
2101 icmd = &elsiocb->iocb;
2102 oldcmd = &oldiocb->iocb;
2103 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2104 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2105
2106 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2107 pcmd += sizeof (uint32_t);
2108
2109 ap = (ADISC *) (pcmd);
2110 ap->hardAL_PA = phba->fc_pref_ALPA;
2111 memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
2112 memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
2113 ap->DID = be32_to_cpu(phba->fc_myDID);
2114
2115 phba->fc_stat.elsXmitACC++;
2116 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2117 spin_lock_irq(phba->host->host_lock);
2118 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2119 spin_unlock_irq(phba->host->host_lock);
2120 if (rc == IOCB_ERROR) {
2121 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2122 return 1;
dea3101e 2123 }
c9f8735b 2124 return 0;
dea3101e
JB		 2125}
2126
2127int
2128lpfc_els_rsp_prli_acc(struct lpfc_hba * phba,
2129 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2130{
2131 PRLI *npr;
2132 lpfc_vpd_t *vpd;
2133 IOCB_t *icmd;
2134 IOCB_t *oldcmd;
2135 struct lpfc_iocbq *elsiocb;
2136 struct lpfc_sli_ring *pring;
2137 struct lpfc_sli *psli;
2138 uint8_t *pcmd;
2139 uint16_t cmdsize;
2140 int rc;
2141
2142 psli = &phba->sli;
2143 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2144
2145 cmdsize = sizeof (uint32_t) + sizeof (PRLI);
c9f8735b 2146 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp,
488d1469 2147 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
c9f8735b
JW		 2148 if (!elsiocb)
2149 return 1;
dea3101e
JB		 2150
2151 /* Xmit PRLI ACC response tag <ulpIoTag> */
2152 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2153 "%d:0131 Xmit PRLI ACC response tag x%x "
2154 "Data: x%x x%x x%x x%x x%x\n",
2155 phba->brd_no,
2156 elsiocb->iocb.ulpIoTag,
2157 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2158 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2159
2160 icmd = &elsiocb->iocb;
2161 oldcmd = &oldiocb->iocb;
2162 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2163 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2164
2165 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
2166 pcmd += sizeof (uint32_t);
2167
2168 /* For PRLI, remainder of payload is PRLI parameter page */
2169 memset(pcmd, 0, sizeof (PRLI));
2170
2171 npr = (PRLI *) pcmd;
2172 vpd = &phba->vpd;
2173 /*
2174 * If our firmware version is 3.20 or later,
2175 * set the following bits for FC-TAPE support.
2176 */
2177 if (vpd->rev.feaLevelHigh >= 0x02) {
2178 npr->ConfmComplAllowed = 1;
2179 npr->Retry = 1;
2180 npr->TaskRetryIdReq = 1;
2181 }
2182
2183 npr->acceptRspCode = PRLI_REQ_EXECUTED;
2184 npr->estabImagePair = 1;
2185 npr->readXferRdyDis = 1;
2186 npr->ConfmComplAllowed = 1;
2187
2188 npr->prliType = PRLI_FCP_TYPE;
2189 npr->initiatorFunc = 1;
2190
2191 phba->fc_stat.elsXmitACC++;
2192 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2193
2194 spin_lock_irq(phba->host->host_lock);
2195 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2196 spin_unlock_irq(phba->host->host_lock);
2197 if (rc == IOCB_ERROR) {
2198 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2199 return 1;
dea3101e 2200 }
c9f8735b 2201 return 0;
dea3101e
JB		 2202}
2203
2204static int
2205lpfc_els_rsp_rnid_acc(struct lpfc_hba * phba,
2206 uint8_t format,
2207 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2208{
2209 RNID *rn;
2210 IOCB_t *icmd;
2211 IOCB_t *oldcmd;
2212 struct lpfc_iocbq *elsiocb;
2213 struct lpfc_sli_ring *pring;
2214 struct lpfc_sli *psli;
2215 uint8_t *pcmd;
2216 uint16_t cmdsize;
2217 int rc;
2218
2219 psli = &phba->sli;
2220 pring = &psli->ring[LPFC_ELS_RING];
2221
2222 cmdsize = sizeof (uint32_t) + sizeof (uint32_t)
2223 + (2 * sizeof (struct lpfc_name));
2224 if (format)
2225 cmdsize += sizeof (RNID_TOP_DISC);
2226
488d1469
JS		 2227 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2228 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2229 if (!elsiocb)
c9f8735b 2230 return 1;
dea3101e
JB		 2231
2232 /* Xmit RNID ACC response tag <ulpIoTag> */
2233 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2234 "%d:0132 Xmit RNID ACC response tag x%x "
2235 "Data: x%x\n",
2236 phba->brd_no,
2237 elsiocb->iocb.ulpIoTag,
2238 elsiocb->iocb.ulpContext);
2239
2240 icmd = &elsiocb->iocb;
2241 oldcmd = &oldiocb->iocb;
2242 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2243 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2244
2245 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2246 pcmd += sizeof (uint32_t);
2247
2248 memset(pcmd, 0, sizeof (RNID));
2249 rn = (RNID *) (pcmd);
2250 rn->Format = format;
2251 rn->CommonLen = (2 * sizeof (struct lpfc_name));
2252 memcpy(&rn->portName, &phba->fc_portname, sizeof (struct lpfc_name));
2253 memcpy(&rn->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
2254 switch (format) {
2255 case 0:
2256 rn->SpecificLen = 0;
2257 break;
2258 case RNID_TOPOLOGY_DISC:
2259 rn->SpecificLen = sizeof (RNID_TOP_DISC);
2260 memcpy(&rn->un.topologyDisc.portName,
2261 &phba->fc_portname, sizeof (struct lpfc_name));
2262 rn->un.topologyDisc.unitType = RNID_HBA;
2263 rn->un.topologyDisc.physPort = 0;
2264 rn->un.topologyDisc.attachedNodes = 0;
2265 break;
2266 default:
2267 rn->CommonLen = 0;
2268 rn->SpecificLen = 0;
2269 break;
2270 }
2271
2272 phba->fc_stat.elsXmitACC++;
2273 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2274 elsiocb->context1 = NULL; /* Don't need ndlp for cmpl,
2275 * it could be freed */
2276
2277 spin_lock_irq(phba->host->host_lock);
2278 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2279 spin_unlock_irq(phba->host->host_lock);
2280 if (rc == IOCB_ERROR) {
2281 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2282 return 1;
dea3101e 2283 }
c9f8735b 2284 return 0;
dea3101e
JB		 2285}
2286
2287int
2288lpfc_els_disc_adisc(struct lpfc_hba * phba)
2289{
2290 int sentadisc;
2291 struct lpfc_nodelist *ndlp, *next_ndlp;
2292
2293 sentadisc = 0;
2294 /* go thru NPR list and issue any remaining ELS ADISCs */
2295 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2296 nlp_listp) {
2297 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2298 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2299 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2300 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 2301 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
2302 lpfc_nlp_list(phba, ndlp,
2303 NLP_ADISC_LIST);
2304 lpfc_issue_els_adisc(phba, ndlp, 0);
2305 sentadisc++;
2306 phba->num_disc_nodes++;
2307 if (phba->num_disc_nodes >=
2308 phba->cfg_discovery_threads) {
2309 spin_lock_irq(phba->host->host_lock);
2310 phba->fc_flag |= FC_NLP_MORE;
2311 spin_unlock_irq(phba->host->host_lock);
2312 break;
2313 }
2314 }
2315 }
2316 }
2317 if (sentadisc == 0) {
2318 spin_lock_irq(phba->host->host_lock);
2319 phba->fc_flag &= ~FC_NLP_MORE;
2320 spin_unlock_irq(phba->host->host_lock);
2321 }
2fe165b6 2322 return sentadisc;
dea3101e
JB		 2323}
2324
2325int
2326lpfc_els_disc_plogi(struct lpfc_hba * phba)
2327{
2328 int sentplogi;
2329 struct lpfc_nodelist *ndlp, *next_ndlp;
2330
2331 sentplogi = 0;
2332 /* go thru NPR list and issue any remaining ELS PLOGIs */
2333 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2334 nlp_listp) {
2335 if ((ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
2336 (!(ndlp->nlp_flag & NLP_DELAY_TMO))) {
2337 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5024ab17 2338 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 2339 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
2340 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 2341 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
dea3101e
JB		 2342 sentplogi++;
2343 phba->num_disc_nodes++;
2344 if (phba->num_disc_nodes >=
2345 phba->cfg_discovery_threads) {
2346 spin_lock_irq(phba->host->host_lock);
2347 phba->fc_flag |= FC_NLP_MORE;
2348 spin_unlock_irq(phba->host->host_lock);
2349 break;
2350 }
2351 }
2352 }
2353 }
2354 if (sentplogi == 0) {
2355 spin_lock_irq(phba->host->host_lock);
2356 phba->fc_flag &= ~FC_NLP_MORE;
2357 spin_unlock_irq(phba->host->host_lock);
2358 }
2fe165b6 2359 return sentplogi;
dea3101e
JB		 2360}
2361
2362int
2363lpfc_els_flush_rscn(struct lpfc_hba * phba)
2364{
2365 struct lpfc_dmabuf *mp;
2366 int i;
2367
2368 for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
2369 mp = phba->fc_rscn_id_list[i];
2370 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2371 kfree(mp);
2372 phba->fc_rscn_id_list[i] = NULL;
2373 }
2374 phba->fc_rscn_id_cnt = 0;
2375 spin_lock_irq(phba->host->host_lock);
2376 phba->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
2377 spin_unlock_irq(phba->host->host_lock);
2378 lpfc_can_disctmo(phba);
c9f8735b 2379 return 0;
dea3101e
JB		 2380}
2381
2382int
2383lpfc_rscn_payload_check(struct lpfc_hba * phba, uint32_t did)
2384{
2385 D_ID ns_did;
2386 D_ID rscn_did;
2387 struct lpfc_dmabuf *mp;
2388 uint32_t *lp;
2389 uint32_t payload_len, cmd, i, match;
2390
2391 ns_did.un.word = did;
2392 match = 0;
2393
2394 /* Never match fabric nodes for RSCNs */
2395 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
2396 return(0);
2397
2398 /* If we are doing a FULL RSCN rediscovery, match everything */
2399 if (phba->fc_flag & FC_RSCN_DISCOVERY) {
c9f8735b 2400 return did;
dea3101e
JB		 2401 }
2402
2403 for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
2404 mp = phba->fc_rscn_id_list[i];
2405 lp = (uint32_t *) mp->virt;
2406 cmd = *lp++;
2407 payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
2408 payload_len -= sizeof (uint32_t); /* take off word 0 */
2409 while (payload_len) {
2410 rscn_did.un.word = *lp++;
2411 rscn_did.un.word = be32_to_cpu(rscn_did.un.word);
2412 payload_len -= sizeof (uint32_t);
2413 switch (rscn_did.un.b.resv) {
2414 case 0: /* Single N_Port ID effected */
2415 if (ns_did.un.word == rscn_did.un.word) {
2416 match = did;
2417 }
2418 break;
2419 case 1: /* Whole N_Port Area effected */
2420 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
2421 && (ns_did.un.b.area == rscn_did.un.b.area))
2422 {
2423 match = did;
2424 }
2425 break;
2426 case 2: /* Whole N_Port Domain effected */
2427 if (ns_did.un.b.domain == rscn_did.un.b.domain)
2428 {
2429 match = did;
2430 }
2431 break;
2432 case 3: /* Whole Fabric effected */
2433 match = did;
2434 break;
2435 default:
2436 /* Unknown Identifier in RSCN list */
2437 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2438 "%d:0217 Unknown Identifier in "
2439 "RSCN payload Data: x%x\n",
2440 phba->brd_no, rscn_did.un.word);
2441 break;
2442 }
2443 if (match) {
2444 break;
2445 }
2446 }
2447 }
c9f8735b 2448 return match;
dea3101e
JB		 2449}
2450
2451static int
2452lpfc_rscn_recovery_check(struct lpfc_hba * phba)
2453{
2454 struct lpfc_nodelist *ndlp = NULL, *next_ndlp;
2455 struct list_head *listp;
2456 struct list_head *node_list[7];
2457 int i;
2458
2459 /* Look at all nodes effected by pending RSCNs and move
2460 * them to NPR list.
2461 */
2462 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
2463 node_list[1] = &phba->fc_nlpmap_list;
2464 node_list[2] = &phba->fc_nlpunmap_list;
2465 node_list[3] = &phba->fc_prli_list;
2466 node_list[4] = &phba->fc_reglogin_list;
2467 node_list[5] = &phba->fc_adisc_list;
2468 node_list[6] = &phba->fc_plogi_list;
2469 for (i = 0; i < 7; i++) {
2470 listp = node_list[i];
2471 if (list_empty(listp))
2472 continue;
2473
2474 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
2475 if (!(lpfc_rscn_payload_check(phba, ndlp->nlp_DID)))
2476 continue;
2477
2478 lpfc_disc_state_machine(phba, ndlp, NULL,
2479 NLP_EVT_DEVICE_RECOVERY);
5024ab17
JW		 2480
2481 /* Make sure NLP_DELAY_TMO is NOT running
2482 * after a device recovery event.
2483 */
fdcebe28
JS		 2484 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2485 lpfc_cancel_retry_delay_tmo(phba, ndlp);
dea3101e
JB		 2486 }
2487 }
c9f8735b 2488 return 0;
dea3101e
JB		 2489}
2490
2491static int
2492lpfc_els_rcv_rscn(struct lpfc_hba * phba,
2493 struct lpfc_iocbq * cmdiocb,
2494 struct lpfc_nodelist * ndlp, uint8_t newnode)
2495{
2496 struct lpfc_dmabuf *pcmd;
2497 uint32_t *lp;
2498 IOCB_t *icmd;
2499 uint32_t payload_len, cmd;
2500
2501 icmd = &cmdiocb->iocb;
2502 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2503 lp = (uint32_t *) pcmd->virt;
2504
2505 cmd = *lp++;
2506 payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
2507 payload_len -= sizeof (uint32_t); /* take off word 0 */
2508 cmd &= ELS_CMD_MASK;
2509
2510 /* RSCN received */
2511 lpfc_printf_log(phba,
2512 KERN_INFO,
2513 LOG_DISCOVERY,
2514 "%d:0214 RSCN received Data: x%x x%x x%x x%x\n",
2515 phba->brd_no,
2516 phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt);
2517
2518 /* If we are about to begin discovery, just ACC the RSCN.
2519 * Discovery processing will satisfy it.
2520 */
071fbd3d 2521 if (phba->hba_state <= LPFC_NS_QRY) {
dea3101e
JB		 2522 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2523 newnode);
c9f8735b 2524 return 0;
dea3101e
JB		 2525 }
2526
2527 /* If we are already processing an RSCN, save the received
2528 * RSCN payload buffer, cmdiocb->context2 to process later.
2529 */
2530 if (phba->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
2531 if ((phba->fc_rscn_id_cnt < FC_MAX_HOLD_RSCN) &&
2532 !(phba->fc_flag & FC_RSCN_DISCOVERY)) {
2533 spin_lock_irq(phba->host->host_lock);
2534 phba->fc_flag |= FC_RSCN_MODE;
2535 spin_unlock_irq(phba->host->host_lock);
2536 phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
2537
2538 /* If we zero, cmdiocb->context2, the calling
2539 * routine will not try to free it.
2540 */
2541 cmdiocb->context2 = NULL;
2542
2543 /* Deferred RSCN */
2544 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2545 "%d:0235 Deferred RSCN "
2546 "Data: x%x x%x x%x\n",
2547 phba->brd_no, phba->fc_rscn_id_cnt,
2548 phba->fc_flag, phba->hba_state);
2549 } else {
2550 spin_lock_irq(phba->host->host_lock);
2551 phba->fc_flag |= FC_RSCN_DISCOVERY;
2552 spin_unlock_irq(phba->host->host_lock);
2553 /* ReDiscovery RSCN */
2554 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2555 "%d:0234 ReDiscovery RSCN "
2556 "Data: x%x x%x x%x\n",
2557 phba->brd_no, phba->fc_rscn_id_cnt,
2558 phba->fc_flag, phba->hba_state);
2559 }
2560 /* Send back ACC */
2561 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2562 newnode);
2563
2564 /* send RECOVERY event for ALL nodes that match RSCN payload */
2565 lpfc_rscn_recovery_check(phba);
c9f8735b 2566 return 0;
dea3101e
JB		 2567 }
2568
2569 phba->fc_flag |= FC_RSCN_MODE;
2570 phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
2571 /*
2572 * If we zero, cmdiocb->context2, the calling routine will
2573 * not try to free it.
2574 */
2575 cmdiocb->context2 = NULL;
2576
2577 lpfc_set_disctmo(phba);
2578
2579 /* Send back ACC */
2580 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode);
2581
2582 /* send RECOVERY event for ALL nodes that match RSCN payload */
2583 lpfc_rscn_recovery_check(phba);
2584
c9f8735b 2585 return lpfc_els_handle_rscn(phba);
dea3101e
JB		 2586}
2587
2588int
2589lpfc_els_handle_rscn(struct lpfc_hba * phba)
2590{
2591 struct lpfc_nodelist *ndlp;
2592
2593 /* Start timer for RSCN processing */
2594 lpfc_set_disctmo(phba);
2595
2596 /* RSCN processed */
2597 lpfc_printf_log(phba,
2598 KERN_INFO,
2599 LOG_DISCOVERY,
2600 "%d:0215 RSCN processed Data: x%x x%x x%x x%x\n",
2601 phba->brd_no,
2602 phba->fc_flag, 0, phba->fc_rscn_id_cnt,
2603 phba->hba_state);
2604
2605 /* To process RSCN, first compare RSCN data with NameServer */
2606 phba->fc_ns_retry = 0;
c9f8735b
JW		 2607 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, NameServer_DID);
2608 if (ndlp) {
dea3101e
JB		 2609 /* Good ndlp, issue CT Request to NameServer */
2610 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT) == 0) {
2611 /* Wait for NameServer query cmpl before we can
2612 continue */
c9f8735b 2613 return 1;
dea3101e
JB		 2614 }
2615 } else {
2616 /* If login to NameServer does not exist, issue one */
2617 /* Good status, issue PLOGI to NameServer */
c9f8735b
JW		 2618 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2619 if (ndlp) {
dea3101e
JB		 2620 /* Wait for NameServer login cmpl before we can
2621 continue */
c9f8735b 2622 return 1;
dea3101e 2623 }
c9f8735b
JW		 2624 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2625 if (!ndlp) {
dea3101e 2626 lpfc_els_flush_rscn(phba);
c9f8735b 2627 return 0;
dea3101e
JB		 2628 } else {
2629 lpfc_nlp_init(phba, ndlp, NameServer_DID);
2630 ndlp->nlp_type |= NLP_FABRIC;
5024ab17 2631 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e 2632 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
488d1469 2633 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
dea3101e
JB		 2634 /* Wait for NameServer login cmpl before we can
2635 continue */
c9f8735b 2636 return 1;
dea3101e
JB		 2637 }
2638 }
2639
2640 lpfc_els_flush_rscn(phba);
c9f8735b 2641 return 0;
dea3101e
JB		 2642}
2643
2644static int
2645lpfc_els_rcv_flogi(struct lpfc_hba * phba,
2646 struct lpfc_iocbq * cmdiocb,
2647 struct lpfc_nodelist * ndlp, uint8_t newnode)
2648{
2649 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2650 uint32_t *lp = (uint32_t *) pcmd->virt;
2651 IOCB_t *icmd = &cmdiocb->iocb;
2652 struct serv_parm *sp;
2653 LPFC_MBOXQ_t *mbox;
2654 struct ls_rjt stat;
2655 uint32_t cmd, did;
2656 int rc;
2657
2658 cmd = *lp++;
2659 sp = (struct serv_parm *) lp;
2660
2661 /* FLOGI received */
2662
2663 lpfc_set_disctmo(phba);
2664
2665 if (phba->fc_topology == TOPOLOGY_LOOP) {
2666 /* We should never receive a FLOGI in loop mode, ignore it */
2667 did = icmd->un.elsreq64.remoteID;
2668
2669 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
2670 Loop Mode */
2671 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
2672 "%d:0113 An FLOGI ELS command x%x was received "
2673 "from DID x%x in Loop Mode\n",
2674 phba->brd_no, cmd, did);
c9f8735b 2675 return 1;
dea3101e
JB		 2676 }
2677
2678 did = Fabric_DID;
2679
2680 if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3))) {
2681 /* For a FLOGI we accept, then if our portname is greater
2682 * then the remote portname we initiate Nport login.
2683 */
2684
2685 rc = memcmp(&phba->fc_portname, &sp->portName,
2686 sizeof (struct lpfc_name));
2687
2688 if (!rc) {
2689 if ((mbox = mempool_alloc(phba->mbox_mem_pool,
2690 GFP_KERNEL)) == 0) {
c9f8735b 2691 return 1;
dea3101e
JB		 2692 }
2693 lpfc_linkdown(phba);
2694 lpfc_init_link(phba, mbox,
2695 phba->cfg_topology,
2696 phba->cfg_link_speed);
2697 mbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2698 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2699 rc = lpfc_sli_issue_mbox
2700 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
2701 if (rc == MBX_NOT_FINISHED) {
2702 mempool_free( mbox, phba->mbox_mem_pool);
2703 }
c9f8735b 2704 return 1;
2fe165b6 2705 } else if (rc > 0) { /* greater than */
dea3101e
JB		 2706 spin_lock_irq(phba->host->host_lock);
2707 phba->fc_flag |= FC_PT2PT_PLOGI;
2708 spin_unlock_irq(phba->host->host_lock);
2709 }
2710 phba->fc_flag |= FC_PT2PT;
2711 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2712 } else {
2713 /* Reject this request because invalid parameters */
2714 stat.un.b.lsRjtRsvd0 = 0;
2715 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2716 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
2717 stat.un.b.vendorUnique = 0;
2718 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 2719 return 1;
dea3101e
JB		 2720 }
2721
2722 /* Send back ACC */
2723 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode);
2724
c9f8735b 2725 return 0;
dea3101e
JB		 2726}
2727
2728static int
2729lpfc_els_rcv_rnid(struct lpfc_hba * phba,
2730 struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
2731{
2732 struct lpfc_dmabuf *pcmd;
2733 uint32_t *lp;
2734 IOCB_t *icmd;
2735 RNID *rn;
2736 struct ls_rjt stat;
2737 uint32_t cmd, did;
2738
2739 icmd = &cmdiocb->iocb;
2740 did = icmd->un.elsreq64.remoteID;
2741 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2742 lp = (uint32_t *) pcmd->virt;
2743
2744 cmd = *lp++;
2745 rn = (RNID *) lp;
2746
2747 /* RNID received */
2748
2749 switch (rn->Format) {
2750 case 0:
2751 case RNID_TOPOLOGY_DISC:
2752 /* Send back ACC */
2753 lpfc_els_rsp_rnid_acc(phba, rn->Format, cmdiocb, ndlp);
2754 break;
2755 default:
2756 /* Reject this request because format not supported */
2757 stat.un.b.lsRjtRsvd0 = 0;
2758 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2759 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2760 stat.un.b.vendorUnique = 0;
2761 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2762 }
c9f8735b 2763 return 0;
dea3101e
JB		 2764}
2765
2766static int
7bb3b137
JW		 2767lpfc_els_rcv_lirr(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2768 struct lpfc_nodelist * ndlp)
2769{
2770 struct ls_rjt stat;
2771
2772 /* For now, unconditionally reject this command */
2773 stat.un.b.lsRjtRsvd0 = 0;
2774 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2775 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2776 stat.un.b.vendorUnique = 0;
2777 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2778 return 0;
2779}
2780
082c0266 2781static void
7bb3b137
JW		 2782lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2783{
2784 struct lpfc_sli *psli;
2785 struct lpfc_sli_ring *pring;
2786 MAILBOX_t *mb;
2787 IOCB_t *icmd;
2788 RPS_RSP *rps_rsp;
2789 uint8_t *pcmd;
2790 struct lpfc_iocbq *elsiocb;
2791 struct lpfc_nodelist *ndlp;
2792 uint16_t xri, status;
2793 uint32_t cmdsize;
2794
2795 psli = &phba->sli;
2796 pring = &psli->ring[LPFC_ELS_RING];
2797 mb = &pmb->mb;
2798
2799 ndlp = (struct lpfc_nodelist *) pmb->context2;
2800 xri = (uint16_t) ((unsigned long)(pmb->context1));
041976fb
RD		 2801 pmb->context1 = NULL;
2802 pmb->context2 = NULL;
7bb3b137
JW		 2803
2804 if (mb->mbxStatus) {
2805 mempool_free( pmb, phba->mbox_mem_pool);
2806 return;
2807 }
2808
2809 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
2810 mempool_free( pmb, phba->mbox_mem_pool);
488d1469
JS		 2811 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, lpfc_max_els_tries, ndlp,
2812 ndlp->nlp_DID, ELS_CMD_ACC);
c9f8735b 2813 if (!elsiocb)
7bb3b137 2814 return;
7bb3b137
JW		 2815
2816 icmd = &elsiocb->iocb;
2817 icmd->ulpContext = xri;
2818
2819 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2820 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2821 pcmd += sizeof (uint32_t); /* Skip past command */
2822 rps_rsp = (RPS_RSP *)pcmd;
2823
2824 if (phba->fc_topology != TOPOLOGY_LOOP)
2825 status = 0x10;
2826 else
2827 status = 0x8;
2828 if (phba->fc_flag & FC_FABRIC)
2829 status |= 0x4;
2830
2831 rps_rsp->rsvd1 = 0;
2832 rps_rsp->portStatus = be16_to_cpu(status);
2833 rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt);
2834 rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt);
2835 rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt);
2836 rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt);
2837 rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord);
2838 rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt);
2839
2840 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
2841 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
dca9479b 2842 "%d:0118 Xmit ELS RPS ACC response tag x%x "
7bb3b137
JW		 2843 "Data: x%x x%x x%x x%x x%x\n",
2844 phba->brd_no,
2845 elsiocb->iocb.ulpIoTag,
2846 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2847 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2848
2849 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2850 phba->fc_stat.elsXmitACC++;
2851 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
2852 lpfc_els_free_iocb(phba, elsiocb);
2853 }
2854 return;
2855}
2856
2857static int
2858lpfc_els_rcv_rps(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
dea3101e
JB		 2859 struct lpfc_nodelist * ndlp)
2860{
dea3101e 2861 uint32_t *lp;
7bb3b137
JW		 2862 uint8_t flag;
2863 LPFC_MBOXQ_t *mbox;
2864 struct lpfc_dmabuf *pcmd;
2865 RPS *rps;
2866 struct ls_rjt stat;
2867
2fe165b6
JW		 2868 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2869 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
7bb3b137
JW		 2870 stat.un.b.lsRjtRsvd0 = 0;
2871 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2872 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2873 stat.un.b.vendorUnique = 0;
2874 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2875 }
2876
2877 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2878 lp = (uint32_t *) pcmd->virt;
2879 flag = (be32_to_cpu(*lp++) & 0xf);
2880 rps = (RPS *) lp;
2881
2882 if ((flag == 0) ||
2883 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
2884 ((flag == 2) && (memcmp(&rps->un.portName, &phba->fc_portname,
2885 sizeof (struct lpfc_name)) == 0))) {
2886 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC))) {
2887 lpfc_read_lnk_stat(phba, mbox);
2888 mbox->context1 =
2889 (void *)((unsigned long)cmdiocb->iocb.ulpContext);
2890 mbox->context2 = ndlp;
2891 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
2892 if (lpfc_sli_issue_mbox (phba, mbox,
2893 (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) {
2894 /* Mbox completion will send ELS Response */
2895 return 0;
2896 }
2897 mempool_free(mbox, phba->mbox_mem_pool);
2898 }
2899 }
2900 stat.un.b.lsRjtRsvd0 = 0;
2901 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2902 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2903 stat.un.b.vendorUnique = 0;
2904 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2905 return 0;
2906}
2907
082c0266 2908static int
7bb3b137
JW		 2909lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
2910 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2911{
dea3101e 2912 IOCB_t *icmd;
7bb3b137
JW		 2913 IOCB_t *oldcmd;
2914 RPL_RSP rpl_rsp;
2915 struct lpfc_iocbq *elsiocb;
dea3101e
JB		 2916 struct lpfc_sli_ring *pring;
2917 struct lpfc_sli *psli;
7bb3b137 2918 uint8_t *pcmd;
dea3101e
JB		 2919
2920 psli = &phba->sli;
7bb3b137
JW		 2921 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2922
488d1469
JS		 2923 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2924 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2925 if (!elsiocb)
7bb3b137 2926 return 1;
488d1469 2927
7bb3b137
JW		 2928 icmd = &elsiocb->iocb;
2929 oldcmd = &oldiocb->iocb;
2930 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2931
2932 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2933 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2934 pcmd += sizeof (uint16_t);
2935 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
2936 pcmd += sizeof(uint16_t);
2937
2938 /* Setup the RPL ACC payload */
2939 rpl_rsp.listLen = be32_to_cpu(1);
2940 rpl_rsp.index = 0;
2941 rpl_rsp.port_num_blk.portNum = 0;
2942 rpl_rsp.port_num_blk.portID = be32_to_cpu(phba->fc_myDID);
2943 memcpy(&rpl_rsp.port_num_blk.portName, &phba->fc_portname,
2944 sizeof(struct lpfc_name));
2945
2946 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
2947
2948
2949 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
2950 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
dca9479b 2951 "%d:0120 Xmit ELS RPL ACC response tag x%x "
7bb3b137
JW		 2952 "Data: x%x x%x x%x x%x x%x\n",
2953 phba->brd_no,
2954 elsiocb->iocb.ulpIoTag,
2955 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2956 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2957
2958 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2959
2960 phba->fc_stat.elsXmitACC++;
2961 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
2962 lpfc_els_free_iocb(phba, elsiocb);
2963 return 1;
2964 }
2965 return 0;
2966}
2967
2968static int
2969lpfc_els_rcv_rpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2970 struct lpfc_nodelist * ndlp)
2971{
2972 struct lpfc_dmabuf *pcmd;
2973 uint32_t *lp;
2974 uint32_t maxsize;
2975 uint16_t cmdsize;
2976 RPL *rpl;
2977 struct ls_rjt stat;
2978
2fe165b6
JW		 2979 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2980 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
7bb3b137
JW		 2981 stat.un.b.lsRjtRsvd0 = 0;
2982 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2983 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2984 stat.un.b.vendorUnique = 0;
2985 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2986 }
2987
dea3101e
JB		 2988 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2989 lp = (uint32_t *) pcmd->virt;
7bb3b137 2990 rpl = (RPL *) (lp + 1);
dea3101e 2991
7bb3b137 2992 maxsize = be32_to_cpu(rpl->maxsize);
dea3101e 2993
7bb3b137
JW		 2994 /* We support only one port */
2995 if ((rpl->index == 0) &&
2996 ((maxsize == 0) ||
2997 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
2998 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
2fe165b6 2999 } else {
7bb3b137
JW		 3000 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
3001 }
3002 lpfc_els_rsp_rpl_acc(phba, cmdsize, cmdiocb, ndlp);
dea3101e
JB		 3003
3004 return 0;
3005}
3006
3007static int
3008lpfc_els_rcv_farp(struct lpfc_hba * phba,
3009 struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
3010{
3011 struct lpfc_dmabuf *pcmd;
3012 uint32_t *lp;
3013 IOCB_t *icmd;
3014 FARP *fp;
3015 uint32_t cmd, cnt, did;
3016
3017 icmd = &cmdiocb->iocb;
3018 did = icmd->un.elsreq64.remoteID;
3019 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3020 lp = (uint32_t *) pcmd->virt;
3021
3022 cmd = *lp++;
3023 fp = (FARP *) lp;
3024
3025 /* FARP-REQ received from DID <did> */
3026 lpfc_printf_log(phba,
3027 KERN_INFO,
3028 LOG_IP,
3029 "%d:0601 FARP-REQ received from DID x%x\n",
3030 phba->brd_no, did);
3031
3032 /* We will only support match on WWPN or WWNN */
3033 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
c9f8735b 3034 return 0;
dea3101e
JB		 3035 }
3036
3037 cnt = 0;
3038 /* If this FARP command is searching for my portname */
3039 if (fp->Mflags & FARP_MATCH_PORT) {
3040 if (memcmp(&fp->RportName, &phba->fc_portname,
3041 sizeof (struct lpfc_name)) == 0)
3042 cnt = 1;
3043 }
3044
3045 /* If this FARP command is searching for my nodename */
3046 if (fp->Mflags & FARP_MATCH_NODE) {
3047 if (memcmp(&fp->RnodeName, &phba->fc_nodename,
3048 sizeof (struct lpfc_name)) == 0)
3049 cnt = 1;
3050 }
3051
3052 if (cnt) {
3053 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
3054 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
3055 /* Log back into the node before sending the FARP. */
3056 if (fp->Rflags & FARP_REQUEST_PLOGI) {
5024ab17 3057 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e
JB		 3058 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
3059 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 3060 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
dea3101e
JB		 3061 }
3062
3063 /* Send a FARP response to that node */
3064 if (fp->Rflags & FARP_REQUEST_FARPR) {
3065 lpfc_issue_els_farpr(phba, did, 0);
3066 }
3067 }
3068 }
c9f8735b 3069 return 0;
dea3101e
JB		 3070}
3071
3072static int
3073lpfc_els_rcv_farpr(struct lpfc_hba * phba,
3074 struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
3075{
3076 struct lpfc_dmabuf *pcmd;
3077 uint32_t *lp;
3078 IOCB_t *icmd;
3079 uint32_t cmd, did;
3080
3081 icmd = &cmdiocb->iocb;
3082 did = icmd->un.elsreq64.remoteID;
3083 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3084 lp = (uint32_t *) pcmd->virt;
3085
3086 cmd = *lp++;
3087 /* FARP-RSP received from DID <did> */
3088 lpfc_printf_log(phba,
3089 KERN_INFO,
3090 LOG_IP,
3091 "%d:0600 FARP-RSP received from DID x%x\n",
3092 phba->brd_no, did);
3093
3094 /* ACCEPT the Farp resp request */
3095 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
3096
3097 return 0;
3098}
3099
3100static int
3101lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
5024ab17 3102 struct lpfc_nodelist * fan_ndlp)
dea3101e
JB		 3103{
3104 struct lpfc_dmabuf *pcmd;
3105 uint32_t *lp;
3106 IOCB_t *icmd;
dea3101e 3107 uint32_t cmd, did;
5024ab17
JW		 3108 FAN *fp;
3109 struct lpfc_nodelist *ndlp, *next_ndlp;
3110
3111 /* FAN received */
dca9479b 3112 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0265 FAN received\n",
5024ab17 3113 phba->brd_no);
dea3101e
JB		 3114
3115 icmd = &cmdiocb->iocb;
3116 did = icmd->un.elsreq64.remoteID;
5024ab17
JW		 3117 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
3118 lp = (uint32_t *)pcmd->virt;
dea3101e
JB		 3119
3120 cmd = *lp++;
5024ab17 3121 fp = (FAN *)lp;
dea3101e 3122
5024ab17 3123 /* FAN received; Fan does not have a reply sequence */
dea3101e
JB		 3124
3125 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
5024ab17
JW		 3126 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
3127 sizeof(struct lpfc_name)) != 0) ||
3128 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
3129 sizeof(struct lpfc_name)) != 0)) {
3130 /*
3131 * This node has switched fabrics. FLOGI is required
3132 * Clean up the old rpi's
dea3101e 3133 */
5024ab17
JW		 3134
3135 list_for_each_entry_safe(ndlp, next_ndlp,
3136 &phba->fc_npr_list, nlp_listp) {
3137
3138 if (ndlp->nlp_type & NLP_FABRIC) {
3139 /*
3140 * Clean up old Fabric, Nameserver and
3141 * other NLP_FABRIC logins
3142 */
3143 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2fe165b6 3144 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5024ab17
JW		 3145 /* Fail outstanding I/O now since this
3146 * device is marked for PLOGI
3147 */
3148 lpfc_unreg_rpi(phba, ndlp);
3149 }
3150 }
3151
3152 phba->hba_state = LPFC_FLOGI;
3153 lpfc_set_disctmo(phba);
3154 lpfc_initial_flogi(phba);
c9f8735b 3155 return 0;
dea3101e 3156 }
5024ab17
JW		 3157 /* Discovery not needed,
3158 * move the nodes to their original state.
3159 */
3160 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
3161 nlp_listp) {
dea3101e 3162
5024ab17
JW		 3163 switch (ndlp->nlp_prev_state) {
3164 case NLP_STE_UNMAPPED_NODE:
3165 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
3166 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
3167 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
3168 break;
3169
3170 case NLP_STE_MAPPED_NODE:
3171 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
3172 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
3173 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
3174 break;
3175
3176 default:
3177 break;
3178 }
3179 }
3180
3181 /* Start discovery - this should just do CLEAR_LA */
dea3101e
JB		 3182 lpfc_disc_start(phba);
3183 }
c9f8735b 3184 return 0;
dea3101e
JB		 3185}
3186
3187void
3188lpfc_els_timeout(unsigned long ptr)
3189{
3190 struct lpfc_hba *phba;
3191 unsigned long iflag;
3192
3193 phba = (struct lpfc_hba *)ptr;
3194 if (phba == 0)
3195 return;
3196 spin_lock_irqsave(phba->host->host_lock, iflag);
3197 if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
3198 phba->work_hba_events |= WORKER_ELS_TMO;
3199 if (phba->work_wait)
3200 wake_up(phba->work_wait);
3201 }
3202 spin_unlock_irqrestore(phba->host->host_lock, iflag);
3203 return;
3204}
3205
3206void
3207lpfc_els_timeout_handler(struct lpfc_hba *phba)
3208{
3209 struct lpfc_sli_ring *pring;
3210 struct lpfc_iocbq *tmp_iocb, *piocb;
3211 IOCB_t *cmd = NULL;
3212 struct lpfc_dmabuf *pcmd;
3213 struct list_head *dlp;
3214 uint32_t *elscmd;
3215 uint32_t els_command;
3216 uint32_t timeout;
3217 uint32_t remote_ID;
3218
3219 if (phba == 0)
3220 return;
3221 spin_lock_irq(phba->host->host_lock);
3222 /* If the timer is already canceled do nothing */
3223 if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
3224 spin_unlock_irq(phba->host->host_lock);
3225 return;
3226 }
3227 timeout = (uint32_t)(phba->fc_ratov << 1);
3228
3229 pring = &phba->sli.ring[LPFC_ELS_RING];
3230 dlp = &pring->txcmplq;
3231
3232 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3233 cmd = &piocb->iocb;
3234
3235 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3236 continue;
3237 }
3238 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3239 elscmd = (uint32_t *) (pcmd->virt);
3240 els_command = *elscmd;
3241
3242 if ((els_command == ELS_CMD_FARP)
3243 || (els_command == ELS_CMD_FARPR)) {
3244 continue;
3245 }
3246
3247 if (piocb->drvrTimeout > 0) {
3248 if (piocb->drvrTimeout >= timeout) {
3249 piocb->drvrTimeout -= timeout;
3250 } else {
3251 piocb->drvrTimeout = 0;
3252 }
3253 continue;
3254 }
3255
3256 list_del(&piocb->list);
3257 pring->txcmplq_cnt--;
3258
3259 if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) {
3260 struct lpfc_nodelist *ndlp;
66a9ed66 3261 spin_unlock_irq(phba->host->host_lock);
dea3101e 3262 ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext);
66a9ed66 3263 spin_lock_irq(phba->host->host_lock);
dea3101e
JB		 3264 remote_ID = ndlp->nlp_DID;
3265 if (cmd->un.elsreq64.bdl.ulpIoTag32) {
3266 lpfc_sli_issue_abort_iotag32(phba,
3267 pring, piocb);
3268 }
3269 } else {
3270 remote_ID = cmd->un.elsreq64.remoteID;
3271 }
3272
3273 lpfc_printf_log(phba,
3274 KERN_ERR,
3275 LOG_ELS,
3276 "%d:0127 ELS timeout Data: x%x x%x x%x x%x\n",
3277 phba->brd_no, els_command,
3278 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
3279
3280 /*
3281 * The iocb has timed out; abort it.
3282 */
3283 if (piocb->iocb_cmpl) {
3284 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3285 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3286 spin_unlock_irq(phba->host->host_lock);
3287 (piocb->iocb_cmpl) (phba, piocb, piocb);
3288 spin_lock_irq(phba->host->host_lock);
604a3e30
JB		 3289 } else
3290 lpfc_sli_release_iocbq(phba, piocb);
dea3101e 3291 }
5a0e326d
JS		 3292 if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt)
3293 mod_timer(&phba->els_tmofunc, jiffies + HZ * timeout);
3294
dea3101e
JB		 3295 spin_unlock_irq(phba->host->host_lock);
3296}
3297
3298void
3299lpfc_els_flush_cmd(struct lpfc_hba * phba)
3300{
3301 struct lpfc_sli_ring *pring;
3302 struct lpfc_iocbq *tmp_iocb, *piocb;
3303 IOCB_t *cmd = NULL;
3304 struct lpfc_dmabuf *pcmd;
3305 uint32_t *elscmd;
3306 uint32_t els_command;
dea3101e
JB		 3307
3308 pring = &phba->sli.ring[LPFC_ELS_RING];
3309 spin_lock_irq(phba->host->host_lock);
3310 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
3311 cmd = &piocb->iocb;
3312
3313 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3314 continue;
3315 }
3316
3317 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
3318 if ((cmd->ulpCommand == CMD_QUE_RING_BUF_CN) ||
3319 (cmd->ulpCommand == CMD_QUE_RING_BUF64_CN) ||
3320 (cmd->ulpCommand == CMD_CLOSE_XRI_CN) ||
3321 (cmd->ulpCommand == CMD_ABORT_XRI_CN)) {
3322 continue;
3323 }
3324
3325 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3326 elscmd = (uint32_t *) (pcmd->virt);
3327 els_command = *elscmd;
3328
dea3101e
JB		 3329 list_del(&piocb->list);
3330 pring->txcmplq_cnt--;
3331
3332 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3333 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3334
3335 if (piocb->iocb_cmpl) {
3336 spin_unlock_irq(phba->host->host_lock);
3337 (piocb->iocb_cmpl) (phba, piocb, piocb);
3338 spin_lock_irq(phba->host->host_lock);
2fe165b6 3339 } else
604a3e30 3340 lpfc_sli_release_iocbq(phba, piocb);
dea3101e
JB		 3341 }
3342
3343 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3344 cmd = &piocb->iocb;
3345
3346 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3347 continue;
3348 }
3349 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3350 elscmd = (uint32_t *) (pcmd->virt);
3351 els_command = *elscmd;
3352
dea3101e
JB		 3353 list_del(&piocb->list);
3354 pring->txcmplq_cnt--;
3355
3356 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3357 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3358
3359 if (piocb->iocb_cmpl) {
3360 spin_unlock_irq(phba->host->host_lock);
3361 (piocb->iocb_cmpl) (phba, piocb, piocb);
3362 spin_lock_irq(phba->host->host_lock);
2fe165b6 3363 } else
604a3e30 3364 lpfc_sli_release_iocbq(phba, piocb);
dea3101e
JB		 3365 }
3366 spin_unlock_irq(phba->host->host_lock);
3367 return;
3368}
3369
3370void
3371lpfc_els_unsol_event(struct lpfc_hba * phba,
3372 struct lpfc_sli_ring * pring, struct lpfc_iocbq * elsiocb)
3373{
3374 struct lpfc_sli *psli;
3375 struct lpfc_nodelist *ndlp;
3376 struct lpfc_dmabuf *mp;
3377 uint32_t *lp;
3378 IOCB_t *icmd;
3379 struct ls_rjt stat;
3380 uint32_t cmd;
3381 uint32_t did;
3382 uint32_t newnode;
3383 uint32_t drop_cmd = 0; /* by default do NOT drop received cmd */
3384 uint32_t rjt_err = 0;
3385
3386 psli = &phba->sli;
3387 icmd = &elsiocb->iocb;
3388
3389 if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3390 ((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) {
3391 /* Not enough posted buffers; Try posting more buffers */
3392 phba->fc_stat.NoRcvBuf++;
3393 lpfc_post_buffer(phba, pring, 0, 1);
3394 return;
3395 }
3396
3397 /* If there are no BDEs associated with this IOCB,
3398 * there is nothing to do.
3399 */
3400 if (icmd->ulpBdeCount == 0)
3401 return;
3402
3403 /* type of ELS cmd is first 32bit word in packet */
3404 mp = lpfc_sli_ringpostbuf_get(phba, pring, getPaddr(icmd->un.
3405 cont64[0].
3406 addrHigh,
3407 icmd->un.
3408 cont64[0].addrLow));
3409 if (mp == 0) {
3410 drop_cmd = 1;
3411 goto dropit;
3412 }
3413
3414 newnode = 0;
3415 lp = (uint32_t *) mp->virt;
3416 cmd = *lp++;
3417 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], 1, 1);
3418
3419 if (icmd->ulpStatus) {
3420 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3421 kfree(mp);
3422 drop_cmd = 1;
3423 goto dropit;
3424 }
3425
3426 /* Check to see if link went down during discovery */
3427 if (lpfc_els_chk_latt(phba)) {
3428 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3429 kfree(mp);
3430 drop_cmd = 1;
3431 goto dropit;
3432 }
3433
3434 did = icmd->un.rcvels.remoteID;
c9f8735b
JW		 3435 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
3436 if (!ndlp) {
dea3101e 3437 /* Cannot find existing Fabric ndlp, so allocate a new one */
c9f8735b
JW		 3438 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3439 if (!ndlp) {
dea3101e
JB		 3440 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3441 kfree(mp);
3442 drop_cmd = 1;
3443 goto dropit;
3444 }
3445
3446 lpfc_nlp_init(phba, ndlp, did);
3447 newnode = 1;
3448 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) {
3449 ndlp->nlp_type |= NLP_FABRIC;
3450 }
92795650
JS		 3451 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
3452 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
dea3101e
JB		 3453 }
3454
3455 phba->fc_stat.elsRcvFrame++;
3456 elsiocb->context1 = ndlp;
3457 elsiocb->context2 = mp;
3458
3459 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
3460 cmd &= ELS_CMD_MASK;
3461 }
3462 /* ELS command <elsCmd> received from NPORT <did> */
3463 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3464 "%d:0112 ELS command x%x received from NPORT x%x "
3465 "Data: x%x\n", phba->brd_no, cmd, did, phba->hba_state);
3466
3467 switch (cmd) {
3468 case ELS_CMD_PLOGI:
3469 phba->fc_stat.elsRcvPLOGI++;
3470 if (phba->hba_state < LPFC_DISC_AUTH) {
1f679caf 3471 rjt_err = 1;
dea3101e
JB		 3472 break;
3473 }
92795650 3474 ndlp = lpfc_plogi_confirm_nport(phba, mp, ndlp);
dea3101e
JB		 3475 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PLOGI);
3476 break;
3477 case ELS_CMD_FLOGI:
3478 phba->fc_stat.elsRcvFLOGI++;
3479 lpfc_els_rcv_flogi(phba, elsiocb, ndlp, newnode);
3480 if (newnode) {
92795650 3481 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
dea3101e
JB		 3482 }
3483 break;
3484 case ELS_CMD_LOGO:
3485 phba->fc_stat.elsRcvLOGO++;
3486 if (phba->hba_state < LPFC_DISC_AUTH) {
1f679caf 3487 rjt_err = 1;
dea3101e
JB		 3488 break;
3489 }
3490 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
3491 break;
3492 case ELS_CMD_PRLO:
3493 phba->fc_stat.elsRcvPRLO++;
3494 if (phba->hba_state < LPFC_DISC_AUTH) {
1f679caf 3495 rjt_err = 1;
dea3101e
JB		 3496 break;
3497 }
3498 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
3499 break;
3500 case ELS_CMD_RSCN:
3501 phba->fc_stat.elsRcvRSCN++;
3502 lpfc_els_rcv_rscn(phba, elsiocb, ndlp, newnode);
3503 if (newnode) {
92795650 3504 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
dea3101e
JB		 3505 }
3506 break;
3507 case ELS_CMD_ADISC:
3508 phba->fc_stat.elsRcvADISC++;
3509 if (phba->hba_state < LPFC_DISC_AUTH) {
1f679caf 3510 rjt_err = 1;
dea3101e
JB		 3511 break;
3512 }
3513 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_ADISC);
3514 break;
3515 case ELS_CMD_PDISC:
3516 phba->fc_stat.elsRcvPDISC++;
3517 if (phba->hba_state < LPFC_DISC_AUTH) {
1f679caf 3518 rjt_err = 1;
dea3101e
JB		 3519 break;
3520 }
3521 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PDISC);
3522 break;
3523 case ELS_CMD_FARPR:
3524 phba->fc_stat.elsRcvFARPR++;
3525 lpfc_els_rcv_farpr(phba, elsiocb, ndlp);
3526 break;
3527 case ELS_CMD_FARP:
3528 phba->fc_stat.elsRcvFARP++;
3529 lpfc_els_rcv_farp(phba, elsiocb, ndlp);
3530 break;
3531 case ELS_CMD_FAN:
3532 phba->fc_stat.elsRcvFAN++;
3533 lpfc_els_rcv_fan(phba, elsiocb, ndlp);
3534 break;
dea3101e
JB		 3535 case ELS_CMD_PRLI:
3536 phba->fc_stat.elsRcvPRLI++;
3537 if (phba->hba_state < LPFC_DISC_AUTH) {
1f679caf 3538 rjt_err = 1;
dea3101e
JB		 3539 break;
3540 }
3541 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
3542 break;
7bb3b137
JW		 3543 case ELS_CMD_LIRR:
3544 phba->fc_stat.elsRcvLIRR++;
3545 lpfc_els_rcv_lirr(phba, elsiocb, ndlp);
3546 if (newnode) {
92795650 3547 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
7bb3b137
JW		 3548 }
3549 break;
3550 case ELS_CMD_RPS:
3551 phba->fc_stat.elsRcvRPS++;
3552 lpfc_els_rcv_rps(phba, elsiocb, ndlp);
3553 if (newnode) {
92795650 3554 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
7bb3b137
JW		 3555 }
3556 break;
3557 case ELS_CMD_RPL:
3558 phba->fc_stat.elsRcvRPL++;
3559 lpfc_els_rcv_rpl(phba, elsiocb, ndlp);
3560 if (newnode) {
92795650 3561 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
7bb3b137
JW		 3562 }
3563 break;
dea3101e
JB		 3564 case ELS_CMD_RNID:
3565 phba->fc_stat.elsRcvRNID++;
3566 lpfc_els_rcv_rnid(phba, elsiocb, ndlp);
7bb3b137 3567 if (newnode) {
92795650 3568 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
7bb3b137 3569 }
dea3101e
JB		 3570 break;
3571 default:
3572 /* Unsupported ELS command, reject */
1f679caf 3573 rjt_err = 1;
dea3101e
JB		 3574
3575 /* Unknown ELS command <elsCmd> received from NPORT <did> */
3576 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3577 "%d:0115 Unknown ELS command x%x received from "
3578 "NPORT x%x\n", phba->brd_no, cmd, did);
3579 if (newnode) {
92795650 3580 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
dea3101e
JB		 3581 }
3582 break;
3583 }
3584
3585 /* check if need to LS_RJT received ELS cmd */
3586 if (rjt_err) {
3587 stat.un.b.lsRjtRsvd0 = 0;
3588 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1f679caf 3589 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
dea3101e
JB		 3590 stat.un.b.vendorUnique = 0;
3591 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, elsiocb, ndlp);
3592 }
3593
3594 if (elsiocb->context2) {
3595 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3596 kfree(mp);
3597 }
3598dropit:
3599 /* check if need to drop received ELS cmd */
3600 if (drop_cmd == 1) {
3601 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3602 "%d:0111 Dropping received ELS cmd "
c9f8735b
JW		 3603 "Data: x%x x%x x%x\n", phba->brd_no,
3604 icmd->ulpStatus, icmd->un.ulpWord[4],
3605 icmd->ulpTimeout);
dea3101e
JB		 3606 phba->fc_stat.elsRcvDrop++;
3607 }
3608 return;
3609}
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