1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2012 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/pci.h> 24 #include <linux/slab.h> 25 #include <linux/interrupt.h> 26 27 #include <scsi/scsi.h> 28 #include <scsi/scsi_device.h> 29 #include <scsi/scsi_host.h> 30 #include <scsi/scsi_transport_fc.h> 31 32 #include "lpfc_hw4.h" 33 #include "lpfc_hw.h" 34 #include "lpfc_sli.h" 35 #include "lpfc_sli4.h" 36 #include "lpfc_nl.h" 37 #include "lpfc_disc.h" 38 #include "lpfc_scsi.h" 39 #include "lpfc.h" 40 #include "lpfc_logmsg.h" 41 #include "lpfc_crtn.h" 42 #include "lpfc_vport.h" 43 #include "lpfc_debugfs.h" 44 45 46 /* Called to verify a rcv'ed ADISC was intended for us. */ 47 static int 48 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 49 struct lpfc_name *nn, struct lpfc_name *pn) 50 { 51 /* First, we MUST have a RPI registered */ 52 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 53 return 0; 54 55 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 56 * table entry for that node. 57 */ 58 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 59 return 0; 60 61 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 62 return 0; 63 64 /* we match, return success */ 65 return 1; 66 } 67 68 int 69 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 70 struct serv_parm *sp, uint32_t class, int flogi) 71 { 72 volatile struct serv_parm *hsp = &vport->fc_sparam; 73 uint16_t hsp_value, ssp_value = 0; 74 75 /* 76 * The receive data field size and buffer-to-buffer receive data field 77 * size entries are 16 bits but are represented as two 8-bit fields in 78 * the driver data structure to account for rsvd bits and other control 79 * bits. Reconstruct and compare the fields as a 16-bit values before 80 * correcting the byte values. 81 */ 82 if (sp->cls1.classValid) { 83 if (!flogi) { 84 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 85 hsp->cls1.rcvDataSizeLsb); 86 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 87 sp->cls1.rcvDataSizeLsb); 88 if (!ssp_value) 89 goto bad_service_param; 90 if (ssp_value > hsp_value) { 91 sp->cls1.rcvDataSizeLsb = 92 hsp->cls1.rcvDataSizeLsb; 93 sp->cls1.rcvDataSizeMsb = 94 hsp->cls1.rcvDataSizeMsb; 95 } 96 } 97 } else if (class == CLASS1) 98 goto bad_service_param; 99 if (sp->cls2.classValid) { 100 if (!flogi) { 101 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 102 hsp->cls2.rcvDataSizeLsb); 103 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 104 sp->cls2.rcvDataSizeLsb); 105 if (!ssp_value) 106 goto bad_service_param; 107 if (ssp_value > hsp_value) { 108 sp->cls2.rcvDataSizeLsb = 109 hsp->cls2.rcvDataSizeLsb; 110 sp->cls2.rcvDataSizeMsb = 111 hsp->cls2.rcvDataSizeMsb; 112 } 113 } 114 } else if (class == CLASS2) 115 goto bad_service_param; 116 if (sp->cls3.classValid) { 117 if (!flogi) { 118 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 119 hsp->cls3.rcvDataSizeLsb); 120 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 121 sp->cls3.rcvDataSizeLsb); 122 if (!ssp_value) 123 goto bad_service_param; 124 if (ssp_value > hsp_value) { 125 sp->cls3.rcvDataSizeLsb = 126 hsp->cls3.rcvDataSizeLsb; 127 sp->cls3.rcvDataSizeMsb = 128 hsp->cls3.rcvDataSizeMsb; 129 } 130 } 131 } else if (class == CLASS3) 132 goto bad_service_param; 133 134 /* 135 * Preserve the upper four bits of the MSB from the PLOGI response. 136 * These bits contain the Buffer-to-Buffer State Change Number 137 * from the target and need to be passed to the FW. 138 */ 139 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 140 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 141 if (ssp_value > hsp_value) { 142 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 143 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 144 (hsp->cmn.bbRcvSizeMsb & 0x0F); 145 } 146 147 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 148 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 149 return 1; 150 bad_service_param: 151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 152 "0207 Device %x " 153 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 154 "invalid service parameters. Ignoring device.\n", 155 ndlp->nlp_DID, 156 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 157 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 158 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 159 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 160 return 0; 161 } 162 163 static void * 164 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 165 struct lpfc_iocbq *rspiocb) 166 { 167 struct lpfc_dmabuf *pcmd, *prsp; 168 uint32_t *lp; 169 void *ptr = NULL; 170 IOCB_t *irsp; 171 172 irsp = &rspiocb->iocb; 173 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 174 175 /* For lpfc_els_abort, context2 could be zero'ed to delay 176 * freeing associated memory till after ABTS completes. 177 */ 178 if (pcmd) { 179 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 180 list); 181 if (prsp) { 182 lp = (uint32_t *) prsp->virt; 183 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 184 } 185 } else { 186 /* Force ulpStatus error since we are returning NULL ptr */ 187 if (!(irsp->ulpStatus)) { 188 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 189 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 190 } 191 ptr = NULL; 192 } 193 return ptr; 194 } 195 196 197 198 /* 199 * Free resources / clean up outstanding I/Os 200 * associated with a LPFC_NODELIST entry. This 201 * routine effectively results in a "software abort". 202 */ 203 int 204 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 205 { 206 LIST_HEAD(completions); 207 LIST_HEAD(txcmplq_completions); 208 LIST_HEAD(abort_list); 209 struct lpfc_sli *psli = &phba->sli; 210 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; 211 struct lpfc_iocbq *iocb, *next_iocb; 212 213 /* Abort outstanding I/O on NPort <nlp_DID> */ 214 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 215 "2819 Abort outstanding I/O on NPort x%x " 216 "Data: x%x x%x x%x\n", 217 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 218 ndlp->nlp_rpi); 219 220 lpfc_fabric_abort_nport(ndlp); 221 222 /* First check the txq */ 223 spin_lock_irq(&phba->hbalock); 224 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 225 /* Check to see if iocb matches the nport we are looking for */ 226 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 227 /* It matches, so deque and call compl with anp error */ 228 list_move_tail(&iocb->list, &completions); 229 } 230 } 231 232 /* Next check the txcmplq */ 233 list_splice_init(&pring->txcmplq, &txcmplq_completions); 234 spin_unlock_irq(&phba->hbalock); 235 236 list_for_each_entry_safe(iocb, next_iocb, &txcmplq_completions, list) { 237 /* Check to see if iocb matches the nport we are looking for */ 238 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 239 list_add_tail(&iocb->dlist, &abort_list); 240 } 241 spin_lock_irq(&phba->hbalock); 242 list_splice(&txcmplq_completions, &pring->txcmplq); 243 spin_unlock_irq(&phba->hbalock); 244 245 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 246 spin_lock_irq(&phba->hbalock); 247 list_del_init(&iocb->dlist); 248 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 249 spin_unlock_irq(&phba->hbalock); 250 } 251 252 /* Cancel all the IOCBs from the completions list */ 253 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 254 IOERR_SLI_ABORTED); 255 256 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 257 return 0; 258 } 259 260 static int 261 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 262 struct lpfc_iocbq *cmdiocb) 263 { 264 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 265 struct lpfc_hba *phba = vport->phba; 266 struct lpfc_dmabuf *pcmd; 267 uint32_t *lp; 268 IOCB_t *icmd; 269 struct serv_parm *sp; 270 LPFC_MBOXQ_t *mbox; 271 struct ls_rjt stat; 272 int rc; 273 274 memset(&stat, 0, sizeof (struct ls_rjt)); 275 if (vport->port_state <= LPFC_FDISC) { 276 /* Before responding to PLOGI, check for pt2pt mode. 277 * If we are pt2pt, with an outstanding FLOGI, abort 278 * the FLOGI and resend it first. 279 */ 280 if (vport->fc_flag & FC_PT2PT) { 281 lpfc_els_abort_flogi(phba); 282 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { 283 /* If the other side is supposed to initiate 284 * the PLOGI anyway, just ACC it now and 285 * move on with discovery. 286 */ 287 phba->fc_edtov = FF_DEF_EDTOV; 288 phba->fc_ratov = FF_DEF_RATOV; 289 /* Start discovery - this should just do 290 CLEAR_LA */ 291 lpfc_disc_start(vport); 292 } else 293 lpfc_initial_flogi(vport); 294 } else { 295 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 296 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 297 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 298 ndlp, NULL); 299 return 0; 300 } 301 } 302 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 303 lp = (uint32_t *) pcmd->virt; 304 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 305 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 306 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 307 "0140 PLOGI Reject: invalid nname\n"); 308 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 309 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 311 NULL); 312 return 0; 313 } 314 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 315 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 316 "0141 PLOGI Reject: invalid pname\n"); 317 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 318 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 319 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 320 NULL); 321 return 0; 322 } 323 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 324 /* Reject this request because invalid parameters */ 325 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 326 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 327 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 328 NULL); 329 return 0; 330 } 331 icmd = &cmdiocb->iocb; 332 333 /* PLOGI chkparm OK */ 334 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 335 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 336 "x%x x%x x%x\n", 337 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 338 ndlp->nlp_rpi, vport->port_state, 339 vport->fc_flag); 340 341 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 342 ndlp->nlp_fcp_info |= CLASS2; 343 else 344 ndlp->nlp_fcp_info |= CLASS3; 345 346 ndlp->nlp_class_sup = 0; 347 if (sp->cls1.classValid) 348 ndlp->nlp_class_sup |= FC_COS_CLASS1; 349 if (sp->cls2.classValid) 350 ndlp->nlp_class_sup |= FC_COS_CLASS2; 351 if (sp->cls3.classValid) 352 ndlp->nlp_class_sup |= FC_COS_CLASS3; 353 if (sp->cls4.classValid) 354 ndlp->nlp_class_sup |= FC_COS_CLASS4; 355 ndlp->nlp_maxframe = 356 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 357 358 /* no need to reg_login if we are already in one of these states */ 359 switch (ndlp->nlp_state) { 360 case NLP_STE_NPR_NODE: 361 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 362 break; 363 case NLP_STE_REG_LOGIN_ISSUE: 364 case NLP_STE_PRLI_ISSUE: 365 case NLP_STE_UNMAPPED_NODE: 366 case NLP_STE_MAPPED_NODE: 367 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); 368 return 1; 369 } 370 371 /* Check for Nport to NPort pt2pt protocol */ 372 if ((vport->fc_flag & FC_PT2PT) && 373 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 374 375 /* rcv'ed PLOGI decides what our NPortId will be */ 376 vport->fc_myDID = icmd->un.rcvels.parmRo; 377 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 378 if (mbox == NULL) 379 goto out; 380 lpfc_config_link(phba, mbox); 381 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 382 mbox->vport = vport; 383 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 384 if (rc == MBX_NOT_FINISHED) { 385 mempool_free(mbox, phba->mbox_mem_pool); 386 goto out; 387 } 388 /* 389 * For SLI4, the VFI/VPI are registered AFTER the 390 * Nport with the higher WWPN sends us a PLOGI with 391 * our assigned NPortId. 392 */ 393 if (phba->sli_rev == LPFC_SLI_REV4) 394 lpfc_issue_reg_vfi(vport); 395 396 lpfc_can_disctmo(vport); 397 } 398 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 399 if (!mbox) 400 goto out; 401 402 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 403 if (phba->sli_rev == LPFC_SLI_REV4) 404 lpfc_unreg_rpi(vport, ndlp); 405 406 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 407 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 408 if (rc) { 409 mempool_free(mbox, phba->mbox_mem_pool); 410 goto out; 411 } 412 413 /* ACC PLOGI rsp command needs to execute first, 414 * queue this mbox command to be processed later. 415 */ 416 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 417 /* 418 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox 419 * command issued in lpfc_cmpl_els_acc(). 420 */ 421 mbox->vport = vport; 422 spin_lock_irq(shost->host_lock); 423 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 424 spin_unlock_irq(shost->host_lock); 425 426 /* 427 * If there is an outstanding PLOGI issued, abort it before 428 * sending ACC rsp for received PLOGI. If pending plogi 429 * is not canceled here, the plogi will be rejected by 430 * remote port and will be retried. On a configuration with 431 * single discovery thread, this will cause a huge delay in 432 * discovery. Also this will cause multiple state machines 433 * running in parallel for this node. 434 */ 435 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 436 /* software abort outstanding PLOGI */ 437 lpfc_els_abort(phba, ndlp); 438 } 439 440 if ((vport->port_type == LPFC_NPIV_PORT && 441 vport->cfg_restrict_login)) { 442 443 /* In order to preserve RPIs, we want to cleanup 444 * the default RPI the firmware created to rcv 445 * this ELS request. The only way to do this is 446 * to register, then unregister the RPI. 447 */ 448 spin_lock_irq(shost->host_lock); 449 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 450 spin_unlock_irq(shost->host_lock); 451 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 452 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 453 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 454 ndlp, mbox); 455 if (rc) 456 mempool_free(mbox, phba->mbox_mem_pool); 457 return 1; 458 } 459 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 460 if (rc) 461 mempool_free(mbox, phba->mbox_mem_pool); 462 return 1; 463 out: 464 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 465 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 466 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 467 return 0; 468 } 469 470 /** 471 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 472 * @phba: pointer to lpfc hba data structure. 473 * @mboxq: pointer to mailbox object 474 * 475 * This routine is invoked to issue a completion to a rcv'ed 476 * ADISC or PDISC after the paused RPI has been resumed. 477 **/ 478 static void 479 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 480 { 481 struct lpfc_vport *vport; 482 struct lpfc_iocbq *elsiocb; 483 struct lpfc_nodelist *ndlp; 484 uint32_t cmd; 485 486 elsiocb = (struct lpfc_iocbq *)mboxq->context1; 487 ndlp = (struct lpfc_nodelist *) mboxq->context2; 488 vport = mboxq->vport; 489 cmd = elsiocb->drvrTimeout; 490 491 if (cmd == ELS_CMD_ADISC) { 492 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 493 } else { 494 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 495 ndlp, NULL); 496 } 497 kfree(elsiocb); 498 mempool_free(mboxq, phba->mbox_mem_pool); 499 } 500 501 static int 502 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 503 struct lpfc_iocbq *cmdiocb) 504 { 505 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 506 struct lpfc_iocbq *elsiocb; 507 struct lpfc_dmabuf *pcmd; 508 struct serv_parm *sp; 509 struct lpfc_name *pnn, *ppn; 510 struct ls_rjt stat; 511 ADISC *ap; 512 IOCB_t *icmd; 513 uint32_t *lp; 514 uint32_t cmd; 515 516 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 517 lp = (uint32_t *) pcmd->virt; 518 519 cmd = *lp++; 520 if (cmd == ELS_CMD_ADISC) { 521 ap = (ADISC *) lp; 522 pnn = (struct lpfc_name *) & ap->nodeName; 523 ppn = (struct lpfc_name *) & ap->portName; 524 } else { 525 sp = (struct serv_parm *) lp; 526 pnn = (struct lpfc_name *) & sp->nodeName; 527 ppn = (struct lpfc_name *) & sp->portName; 528 } 529 530 icmd = &cmdiocb->iocb; 531 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 532 533 /* 534 * As soon as we send ACC, the remote NPort can 535 * start sending us data. Thus, for SLI4 we must 536 * resume the RPI before the ACC goes out. 537 */ 538 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 539 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 540 GFP_KERNEL); 541 if (elsiocb) { 542 543 /* Save info from cmd IOCB used in rsp */ 544 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 545 sizeof(struct lpfc_iocbq)); 546 547 /* Save the ELS cmd */ 548 elsiocb->drvrTimeout = cmd; 549 550 lpfc_sli4_resume_rpi(ndlp, 551 lpfc_mbx_cmpl_resume_rpi, elsiocb); 552 goto out; 553 } 554 } 555 556 if (cmd == ELS_CMD_ADISC) { 557 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 558 } else { 559 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 560 ndlp, NULL); 561 } 562 out: 563 /* If we are authenticated, move to the proper state */ 564 if (ndlp->nlp_type & NLP_FCP_TARGET) 565 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 566 else 567 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 568 569 return 1; 570 } 571 /* Reject this request because invalid parameters */ 572 stat.un.b.lsRjtRsvd0 = 0; 573 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 574 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 575 stat.un.b.vendorUnique = 0; 576 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 577 578 /* 1 sec timeout */ 579 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 580 581 spin_lock_irq(shost->host_lock); 582 ndlp->nlp_flag |= NLP_DELAY_TMO; 583 spin_unlock_irq(shost->host_lock); 584 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 585 ndlp->nlp_prev_state = ndlp->nlp_state; 586 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 587 return 0; 588 } 589 590 static int 591 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 592 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 593 { 594 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 595 struct lpfc_hba *phba = vport->phba; 596 struct lpfc_vport **vports; 597 int i, active_vlink_present = 0 ; 598 599 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 600 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 601 * PLOGIs during LOGO storms from a device. 602 */ 603 spin_lock_irq(shost->host_lock); 604 ndlp->nlp_flag |= NLP_LOGO_ACC; 605 spin_unlock_irq(shost->host_lock); 606 if (els_cmd == ELS_CMD_PRLO) 607 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 608 else 609 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 610 if (ndlp->nlp_DID == Fabric_DID) { 611 if (vport->port_state <= LPFC_FDISC) 612 goto out; 613 lpfc_linkdown_port(vport); 614 spin_lock_irq(shost->host_lock); 615 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 616 spin_unlock_irq(shost->host_lock); 617 vports = lpfc_create_vport_work_array(phba); 618 if (vports) { 619 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 620 i++) { 621 if ((!(vports[i]->fc_flag & 622 FC_VPORT_LOGO_RCVD)) && 623 (vports[i]->port_state > LPFC_FDISC)) { 624 active_vlink_present = 1; 625 break; 626 } 627 } 628 lpfc_destroy_vport_work_array(phba, vports); 629 } 630 631 if (active_vlink_present) { 632 /* 633 * If there are other active VLinks present, 634 * re-instantiate the Vlink using FDISC. 635 */ 636 mod_timer(&ndlp->nlp_delayfunc, 637 jiffies + msecs_to_jiffies(1000)); 638 spin_lock_irq(shost->host_lock); 639 ndlp->nlp_flag |= NLP_DELAY_TMO; 640 spin_unlock_irq(shost->host_lock); 641 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 642 vport->port_state = LPFC_FDISC; 643 } else { 644 spin_lock_irq(shost->host_lock); 645 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 646 spin_unlock_irq(shost->host_lock); 647 lpfc_retry_pport_discovery(phba); 648 } 649 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 650 ((ndlp->nlp_type & NLP_FCP_TARGET) || 651 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 652 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 653 /* Only try to re-login if this is NOT a Fabric Node */ 654 mod_timer(&ndlp->nlp_delayfunc, 655 jiffies + msecs_to_jiffies(1000 * 1)); 656 spin_lock_irq(shost->host_lock); 657 ndlp->nlp_flag |= NLP_DELAY_TMO; 658 spin_unlock_irq(shost->host_lock); 659 660 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 661 } 662 out: 663 ndlp->nlp_prev_state = ndlp->nlp_state; 664 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 665 666 spin_lock_irq(shost->host_lock); 667 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 668 spin_unlock_irq(shost->host_lock); 669 /* The driver has to wait until the ACC completes before it continues 670 * processing the LOGO. The action will resume in 671 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 672 * unreg_login, the driver waits so the ACC does not get aborted. 673 */ 674 return 0; 675 } 676 677 static void 678 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 679 struct lpfc_iocbq *cmdiocb) 680 { 681 struct lpfc_dmabuf *pcmd; 682 uint32_t *lp; 683 PRLI *npr; 684 struct fc_rport *rport = ndlp->rport; 685 u32 roles; 686 687 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 688 lp = (uint32_t *) pcmd->virt; 689 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 690 691 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 692 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 693 if (npr->prliType == PRLI_FCP_TYPE) { 694 if (npr->initiatorFunc) 695 ndlp->nlp_type |= NLP_FCP_INITIATOR; 696 if (npr->targetFunc) 697 ndlp->nlp_type |= NLP_FCP_TARGET; 698 if (npr->Retry) 699 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 700 } 701 if (rport) { 702 /* We need to update the rport role values */ 703 roles = FC_RPORT_ROLE_UNKNOWN; 704 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 705 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 706 if (ndlp->nlp_type & NLP_FCP_TARGET) 707 roles |= FC_RPORT_ROLE_FCP_TARGET; 708 709 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 710 "rport rolechg: role:x%x did:x%x flg:x%x", 711 roles, ndlp->nlp_DID, ndlp->nlp_flag); 712 713 fc_remote_port_rolechg(rport, roles); 714 } 715 } 716 717 static uint32_t 718 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 719 { 720 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 721 722 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 723 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 724 return 0; 725 } 726 727 if (!(vport->fc_flag & FC_PT2PT)) { 728 /* Check config parameter use-adisc or FCP-2 */ 729 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 730 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 731 (ndlp->nlp_type & NLP_FCP_TARGET))) { 732 spin_lock_irq(shost->host_lock); 733 ndlp->nlp_flag |= NLP_NPR_ADISC; 734 spin_unlock_irq(shost->host_lock); 735 return 1; 736 } 737 } 738 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 739 lpfc_unreg_rpi(vport, ndlp); 740 return 0; 741 } 742 743 /** 744 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 745 * @phba : Pointer to lpfc_hba structure. 746 * @vport: Pointer to lpfc_vport structure. 747 * @rpi : rpi to be release. 748 * 749 * This function will send a unreg_login mailbox command to the firmware 750 * to release a rpi. 751 **/ 752 void 753 lpfc_release_rpi(struct lpfc_hba *phba, 754 struct lpfc_vport *vport, 755 uint16_t rpi) 756 { 757 LPFC_MBOXQ_t *pmb; 758 int rc; 759 760 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 761 GFP_KERNEL); 762 if (!pmb) 763 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 764 "2796 mailbox memory allocation failed \n"); 765 else { 766 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 767 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 768 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 769 if (rc == MBX_NOT_FINISHED) 770 mempool_free(pmb, phba->mbox_mem_pool); 771 } 772 } 773 774 static uint32_t 775 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 776 void *arg, uint32_t evt) 777 { 778 struct lpfc_hba *phba; 779 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 780 MAILBOX_t *mb; 781 uint16_t rpi; 782 783 phba = vport->phba; 784 /* Release the RPI if reglogin completing */ 785 if (!(phba->pport->load_flag & FC_UNLOADING) && 786 (evt == NLP_EVT_CMPL_REG_LOGIN) && 787 (!pmb->u.mb.mbxStatus)) { 788 mb = &pmb->u.mb; 789 rpi = pmb->u.mb.un.varWords[0]; 790 lpfc_release_rpi(phba, vport, rpi); 791 } 792 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 793 "0271 Illegal State Transition: node x%x " 794 "event x%x, state x%x Data: x%x x%x\n", 795 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 796 ndlp->nlp_flag); 797 return ndlp->nlp_state; 798 } 799 800 static uint32_t 801 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 802 void *arg, uint32_t evt) 803 { 804 /* This transition is only legal if we previously 805 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 806 * working on the same NPortID, do nothing for this thread 807 * to stop it. 808 */ 809 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 810 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 811 "0272 Illegal State Transition: node x%x " 812 "event x%x, state x%x Data: x%x x%x\n", 813 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 814 ndlp->nlp_flag); 815 } 816 return ndlp->nlp_state; 817 } 818 819 /* Start of Discovery State Machine routines */ 820 821 static uint32_t 822 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 823 void *arg, uint32_t evt) 824 { 825 struct lpfc_iocbq *cmdiocb; 826 827 cmdiocb = (struct lpfc_iocbq *) arg; 828 829 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 830 return ndlp->nlp_state; 831 } 832 return NLP_STE_FREED_NODE; 833 } 834 835 static uint32_t 836 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 837 void *arg, uint32_t evt) 838 { 839 lpfc_issue_els_logo(vport, ndlp, 0); 840 return ndlp->nlp_state; 841 } 842 843 static uint32_t 844 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 845 void *arg, uint32_t evt) 846 { 847 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 848 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 849 850 spin_lock_irq(shost->host_lock); 851 ndlp->nlp_flag |= NLP_LOGO_ACC; 852 spin_unlock_irq(shost->host_lock); 853 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 854 855 return ndlp->nlp_state; 856 } 857 858 static uint32_t 859 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 860 void *arg, uint32_t evt) 861 { 862 return NLP_STE_FREED_NODE; 863 } 864 865 static uint32_t 866 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 867 void *arg, uint32_t evt) 868 { 869 return NLP_STE_FREED_NODE; 870 } 871 872 static uint32_t 873 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 874 struct lpfc_nodelist *ndlp, 875 void *arg, uint32_t evt) 876 { 877 return ndlp->nlp_state; 878 } 879 880 static uint32_t 881 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 882 void *arg, uint32_t evt) 883 { 884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 885 struct lpfc_hba *phba = vport->phba; 886 struct lpfc_iocbq *cmdiocb = arg; 887 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 888 uint32_t *lp = (uint32_t *) pcmd->virt; 889 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 890 struct ls_rjt stat; 891 int port_cmp; 892 893 memset(&stat, 0, sizeof (struct ls_rjt)); 894 895 /* For a PLOGI, we only accept if our portname is less 896 * than the remote portname. 897 */ 898 phba->fc_stat.elsLogiCol++; 899 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 900 sizeof(struct lpfc_name)); 901 902 if (port_cmp >= 0) { 903 /* Reject this request because the remote node will accept 904 ours */ 905 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 906 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 907 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 908 NULL); 909 } else { 910 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 911 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 912 (vport->num_disc_nodes)) { 913 spin_lock_irq(shost->host_lock); 914 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 915 spin_unlock_irq(shost->host_lock); 916 /* Check if there are more PLOGIs to be sent */ 917 lpfc_more_plogi(vport); 918 if (vport->num_disc_nodes == 0) { 919 spin_lock_irq(shost->host_lock); 920 vport->fc_flag &= ~FC_NDISC_ACTIVE; 921 spin_unlock_irq(shost->host_lock); 922 lpfc_can_disctmo(vport); 923 lpfc_end_rscn(vport); 924 } 925 } 926 } /* If our portname was less */ 927 928 return ndlp->nlp_state; 929 } 930 931 static uint32_t 932 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 933 void *arg, uint32_t evt) 934 { 935 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 936 struct ls_rjt stat; 937 938 memset(&stat, 0, sizeof (struct ls_rjt)); 939 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 940 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 941 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 942 return ndlp->nlp_state; 943 } 944 945 static uint32_t 946 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 947 void *arg, uint32_t evt) 948 { 949 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 950 951 /* software abort outstanding PLOGI */ 952 lpfc_els_abort(vport->phba, ndlp); 953 954 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 955 return ndlp->nlp_state; 956 } 957 958 static uint32_t 959 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 960 void *arg, uint32_t evt) 961 { 962 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 963 struct lpfc_hba *phba = vport->phba; 964 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 965 966 /* software abort outstanding PLOGI */ 967 lpfc_els_abort(phba, ndlp); 968 969 if (evt == NLP_EVT_RCV_LOGO) { 970 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 971 } else { 972 lpfc_issue_els_logo(vport, ndlp, 0); 973 } 974 975 /* Put ndlp in npr state set plogi timer for 1 sec */ 976 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 977 spin_lock_irq(shost->host_lock); 978 ndlp->nlp_flag |= NLP_DELAY_TMO; 979 spin_unlock_irq(shost->host_lock); 980 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 981 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 982 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 983 984 return ndlp->nlp_state; 985 } 986 987 static uint32_t 988 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 989 struct lpfc_nodelist *ndlp, 990 void *arg, 991 uint32_t evt) 992 { 993 struct lpfc_hba *phba = vport->phba; 994 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 995 struct lpfc_iocbq *cmdiocb, *rspiocb; 996 struct lpfc_dmabuf *pcmd, *prsp, *mp; 997 uint32_t *lp; 998 IOCB_t *irsp; 999 struct serv_parm *sp; 1000 LPFC_MBOXQ_t *mbox; 1001 1002 cmdiocb = (struct lpfc_iocbq *) arg; 1003 rspiocb = cmdiocb->context_un.rsp_iocb; 1004 1005 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1006 /* Recovery from PLOGI collision logic */ 1007 return ndlp->nlp_state; 1008 } 1009 1010 irsp = &rspiocb->iocb; 1011 1012 if (irsp->ulpStatus) 1013 goto out; 1014 1015 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1016 1017 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1018 1019 lp = (uint32_t *) prsp->virt; 1020 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1021 1022 /* Some switches have FDMI servers returning 0 for WWN */ 1023 if ((ndlp->nlp_DID != FDMI_DID) && 1024 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1025 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1026 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1027 "0142 PLOGI RSP: Invalid WWN.\n"); 1028 goto out; 1029 } 1030 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1031 goto out; 1032 /* PLOGI chkparm OK */ 1033 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1034 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1035 ndlp->nlp_DID, ndlp->nlp_state, 1036 ndlp->nlp_flag, ndlp->nlp_rpi); 1037 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1038 ndlp->nlp_fcp_info |= CLASS2; 1039 else 1040 ndlp->nlp_fcp_info |= CLASS3; 1041 1042 ndlp->nlp_class_sup = 0; 1043 if (sp->cls1.classValid) 1044 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1045 if (sp->cls2.classValid) 1046 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1047 if (sp->cls3.classValid) 1048 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1049 if (sp->cls4.classValid) 1050 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1051 ndlp->nlp_maxframe = 1052 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1053 1054 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1055 if (!mbox) { 1056 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1057 "0133 PLOGI: no memory for reg_login " 1058 "Data: x%x x%x x%x x%x\n", 1059 ndlp->nlp_DID, ndlp->nlp_state, 1060 ndlp->nlp_flag, ndlp->nlp_rpi); 1061 goto out; 1062 } 1063 1064 lpfc_unreg_rpi(vport, ndlp); 1065 1066 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1067 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1068 switch (ndlp->nlp_DID) { 1069 case NameServer_DID: 1070 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1071 break; 1072 case FDMI_DID: 1073 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1074 break; 1075 default: 1076 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1077 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1078 } 1079 mbox->context2 = lpfc_nlp_get(ndlp); 1080 mbox->vport = vport; 1081 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1082 != MBX_NOT_FINISHED) { 1083 lpfc_nlp_set_state(vport, ndlp, 1084 NLP_STE_REG_LOGIN_ISSUE); 1085 return ndlp->nlp_state; 1086 } 1087 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1088 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1089 /* decrement node reference count to the failed mbox 1090 * command 1091 */ 1092 lpfc_nlp_put(ndlp); 1093 mp = (struct lpfc_dmabuf *) mbox->context1; 1094 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1095 kfree(mp); 1096 mempool_free(mbox, phba->mbox_mem_pool); 1097 1098 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1099 "0134 PLOGI: cannot issue reg_login " 1100 "Data: x%x x%x x%x x%x\n", 1101 ndlp->nlp_DID, ndlp->nlp_state, 1102 ndlp->nlp_flag, ndlp->nlp_rpi); 1103 } else { 1104 mempool_free(mbox, phba->mbox_mem_pool); 1105 1106 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1107 "0135 PLOGI: cannot format reg_login " 1108 "Data: x%x x%x x%x x%x\n", 1109 ndlp->nlp_DID, ndlp->nlp_state, 1110 ndlp->nlp_flag, ndlp->nlp_rpi); 1111 } 1112 1113 1114 out: 1115 if (ndlp->nlp_DID == NameServer_DID) { 1116 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1117 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1118 "0261 Cannot Register NameServer login\n"); 1119 } 1120 1121 /* 1122 ** In case the node reference counter does not go to zero, ensure that 1123 ** the stale state for the node is not processed. 1124 */ 1125 1126 ndlp->nlp_prev_state = ndlp->nlp_state; 1127 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1128 spin_lock_irq(shost->host_lock); 1129 ndlp->nlp_flag |= NLP_DEFER_RM; 1130 spin_unlock_irq(shost->host_lock); 1131 return NLP_STE_FREED_NODE; 1132 } 1133 1134 static uint32_t 1135 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1136 void *arg, uint32_t evt) 1137 { 1138 return ndlp->nlp_state; 1139 } 1140 1141 static uint32_t 1142 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1143 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1144 { 1145 struct lpfc_hba *phba; 1146 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1147 MAILBOX_t *mb = &pmb->u.mb; 1148 uint16_t rpi; 1149 1150 phba = vport->phba; 1151 /* Release the RPI */ 1152 if (!(phba->pport->load_flag & FC_UNLOADING) && 1153 !mb->mbxStatus) { 1154 rpi = pmb->u.mb.un.varWords[0]; 1155 lpfc_release_rpi(phba, vport, rpi); 1156 } 1157 return ndlp->nlp_state; 1158 } 1159 1160 static uint32_t 1161 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1162 void *arg, uint32_t evt) 1163 { 1164 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1165 1166 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1167 spin_lock_irq(shost->host_lock); 1168 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1169 spin_unlock_irq(shost->host_lock); 1170 return ndlp->nlp_state; 1171 } else { 1172 /* software abort outstanding PLOGI */ 1173 lpfc_els_abort(vport->phba, ndlp); 1174 1175 lpfc_drop_node(vport, ndlp); 1176 return NLP_STE_FREED_NODE; 1177 } 1178 } 1179 1180 static uint32_t 1181 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1182 struct lpfc_nodelist *ndlp, 1183 void *arg, 1184 uint32_t evt) 1185 { 1186 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1187 struct lpfc_hba *phba = vport->phba; 1188 1189 /* Don't do anything that will mess up processing of the 1190 * previous RSCN. 1191 */ 1192 if (vport->fc_flag & FC_RSCN_DEFERRED) 1193 return ndlp->nlp_state; 1194 1195 /* software abort outstanding PLOGI */ 1196 lpfc_els_abort(phba, ndlp); 1197 1198 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1199 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1200 spin_lock_irq(shost->host_lock); 1201 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1202 spin_unlock_irq(shost->host_lock); 1203 1204 return ndlp->nlp_state; 1205 } 1206 1207 static uint32_t 1208 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1209 void *arg, uint32_t evt) 1210 { 1211 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1212 struct lpfc_hba *phba = vport->phba; 1213 struct lpfc_iocbq *cmdiocb; 1214 1215 /* software abort outstanding ADISC */ 1216 lpfc_els_abort(phba, ndlp); 1217 1218 cmdiocb = (struct lpfc_iocbq *) arg; 1219 1220 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1221 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1222 spin_lock_irq(shost->host_lock); 1223 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1224 spin_unlock_irq(shost->host_lock); 1225 if (vport->num_disc_nodes) 1226 lpfc_more_adisc(vport); 1227 } 1228 return ndlp->nlp_state; 1229 } 1230 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1231 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1232 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1233 1234 return ndlp->nlp_state; 1235 } 1236 1237 static uint32_t 1238 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1239 void *arg, uint32_t evt) 1240 { 1241 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1242 1243 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1244 return ndlp->nlp_state; 1245 } 1246 1247 static uint32_t 1248 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1249 void *arg, uint32_t evt) 1250 { 1251 struct lpfc_hba *phba = vport->phba; 1252 struct lpfc_iocbq *cmdiocb; 1253 1254 cmdiocb = (struct lpfc_iocbq *) arg; 1255 1256 /* software abort outstanding ADISC */ 1257 lpfc_els_abort(phba, ndlp); 1258 1259 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1260 return ndlp->nlp_state; 1261 } 1262 1263 static uint32_t 1264 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1265 struct lpfc_nodelist *ndlp, 1266 void *arg, uint32_t evt) 1267 { 1268 struct lpfc_iocbq *cmdiocb; 1269 1270 cmdiocb = (struct lpfc_iocbq *) arg; 1271 1272 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1273 return ndlp->nlp_state; 1274 } 1275 1276 static uint32_t 1277 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1278 void *arg, uint32_t evt) 1279 { 1280 struct lpfc_iocbq *cmdiocb; 1281 1282 cmdiocb = (struct lpfc_iocbq *) arg; 1283 1284 /* Treat like rcv logo */ 1285 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1286 return ndlp->nlp_state; 1287 } 1288 1289 static uint32_t 1290 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1291 struct lpfc_nodelist *ndlp, 1292 void *arg, uint32_t evt) 1293 { 1294 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1295 struct lpfc_hba *phba = vport->phba; 1296 struct lpfc_iocbq *cmdiocb, *rspiocb; 1297 IOCB_t *irsp; 1298 ADISC *ap; 1299 int rc; 1300 1301 cmdiocb = (struct lpfc_iocbq *) arg; 1302 rspiocb = cmdiocb->context_un.rsp_iocb; 1303 1304 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1305 irsp = &rspiocb->iocb; 1306 1307 if ((irsp->ulpStatus) || 1308 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1309 /* 1 sec timeout */ 1310 mod_timer(&ndlp->nlp_delayfunc, 1311 jiffies + msecs_to_jiffies(1000)); 1312 spin_lock_irq(shost->host_lock); 1313 ndlp->nlp_flag |= NLP_DELAY_TMO; 1314 spin_unlock_irq(shost->host_lock); 1315 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1316 1317 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1318 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1319 1320 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1321 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1322 lpfc_unreg_rpi(vport, ndlp); 1323 return ndlp->nlp_state; 1324 } 1325 1326 if (phba->sli_rev == LPFC_SLI_REV4) { 1327 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1328 if (rc) { 1329 /* Stay in state and retry. */ 1330 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1331 return ndlp->nlp_state; 1332 } 1333 } 1334 1335 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1336 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1337 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1338 } else { 1339 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1340 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1341 } 1342 1343 return ndlp->nlp_state; 1344 } 1345 1346 static uint32_t 1347 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1348 void *arg, uint32_t evt) 1349 { 1350 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1351 1352 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1353 spin_lock_irq(shost->host_lock); 1354 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1355 spin_unlock_irq(shost->host_lock); 1356 return ndlp->nlp_state; 1357 } else { 1358 /* software abort outstanding ADISC */ 1359 lpfc_els_abort(vport->phba, ndlp); 1360 1361 lpfc_drop_node(vport, ndlp); 1362 return NLP_STE_FREED_NODE; 1363 } 1364 } 1365 1366 static uint32_t 1367 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1368 struct lpfc_nodelist *ndlp, 1369 void *arg, 1370 uint32_t evt) 1371 { 1372 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1373 struct lpfc_hba *phba = vport->phba; 1374 1375 /* Don't do anything that will mess up processing of the 1376 * previous RSCN. 1377 */ 1378 if (vport->fc_flag & FC_RSCN_DEFERRED) 1379 return ndlp->nlp_state; 1380 1381 /* software abort outstanding ADISC */ 1382 lpfc_els_abort(phba, ndlp); 1383 1384 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1385 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1386 spin_lock_irq(shost->host_lock); 1387 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1388 spin_unlock_irq(shost->host_lock); 1389 lpfc_disc_set_adisc(vport, ndlp); 1390 return ndlp->nlp_state; 1391 } 1392 1393 static uint32_t 1394 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1395 struct lpfc_nodelist *ndlp, 1396 void *arg, 1397 uint32_t evt) 1398 { 1399 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1400 1401 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1402 return ndlp->nlp_state; 1403 } 1404 1405 static uint32_t 1406 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1407 struct lpfc_nodelist *ndlp, 1408 void *arg, 1409 uint32_t evt) 1410 { 1411 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1412 1413 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1414 return ndlp->nlp_state; 1415 } 1416 1417 static uint32_t 1418 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1419 struct lpfc_nodelist *ndlp, 1420 void *arg, 1421 uint32_t evt) 1422 { 1423 struct lpfc_hba *phba = vport->phba; 1424 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1425 LPFC_MBOXQ_t *mb; 1426 LPFC_MBOXQ_t *nextmb; 1427 struct lpfc_dmabuf *mp; 1428 1429 cmdiocb = (struct lpfc_iocbq *) arg; 1430 1431 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1432 if ((mb = phba->sli.mbox_active)) { 1433 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1434 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1435 lpfc_nlp_put(ndlp); 1436 mb->context2 = NULL; 1437 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1438 } 1439 } 1440 1441 spin_lock_irq(&phba->hbalock); 1442 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1443 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1444 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1445 mp = (struct lpfc_dmabuf *) (mb->context1); 1446 if (mp) { 1447 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1448 kfree(mp); 1449 } 1450 lpfc_nlp_put(ndlp); 1451 list_del(&mb->list); 1452 phba->sli.mboxq_cnt--; 1453 mempool_free(mb, phba->mbox_mem_pool); 1454 } 1455 } 1456 spin_unlock_irq(&phba->hbalock); 1457 1458 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1459 return ndlp->nlp_state; 1460 } 1461 1462 static uint32_t 1463 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1464 struct lpfc_nodelist *ndlp, 1465 void *arg, 1466 uint32_t evt) 1467 { 1468 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1469 1470 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1471 return ndlp->nlp_state; 1472 } 1473 1474 static uint32_t 1475 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1476 struct lpfc_nodelist *ndlp, 1477 void *arg, 1478 uint32_t evt) 1479 { 1480 struct lpfc_iocbq *cmdiocb; 1481 1482 cmdiocb = (struct lpfc_iocbq *) arg; 1483 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1484 return ndlp->nlp_state; 1485 } 1486 1487 static uint32_t 1488 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1489 struct lpfc_nodelist *ndlp, 1490 void *arg, 1491 uint32_t evt) 1492 { 1493 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1494 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1495 MAILBOX_t *mb = &pmb->u.mb; 1496 uint32_t did = mb->un.varWords[1]; 1497 1498 if (mb->mbxStatus) { 1499 /* RegLogin failed */ 1500 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1501 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1502 "x%x\n", 1503 did, mb->mbxStatus, vport->port_state, 1504 mb->un.varRegLogin.vpi, 1505 mb->un.varRegLogin.rpi); 1506 /* 1507 * If RegLogin failed due to lack of HBA resources do not 1508 * retry discovery. 1509 */ 1510 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1511 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1512 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1513 return ndlp->nlp_state; 1514 } 1515 1516 /* Put ndlp in npr state set plogi timer for 1 sec */ 1517 mod_timer(&ndlp->nlp_delayfunc, 1518 jiffies + msecs_to_jiffies(1000 * 1)); 1519 spin_lock_irq(shost->host_lock); 1520 ndlp->nlp_flag |= NLP_DELAY_TMO; 1521 spin_unlock_irq(shost->host_lock); 1522 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1523 1524 lpfc_issue_els_logo(vport, ndlp, 0); 1525 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1526 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1527 return ndlp->nlp_state; 1528 } 1529 1530 /* SLI4 ports have preallocated logical rpis. */ 1531 if (vport->phba->sli_rev < LPFC_SLI_REV4) 1532 ndlp->nlp_rpi = mb->un.varWords[0]; 1533 1534 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1535 1536 /* Only if we are not a fabric nport do we issue PRLI */ 1537 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1538 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1539 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1540 lpfc_issue_els_prli(vport, ndlp, 0); 1541 } else { 1542 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1543 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1544 } 1545 return ndlp->nlp_state; 1546 } 1547 1548 static uint32_t 1549 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1550 struct lpfc_nodelist *ndlp, 1551 void *arg, 1552 uint32_t evt) 1553 { 1554 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1555 1556 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1557 spin_lock_irq(shost->host_lock); 1558 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1559 spin_unlock_irq(shost->host_lock); 1560 return ndlp->nlp_state; 1561 } else { 1562 lpfc_drop_node(vport, ndlp); 1563 return NLP_STE_FREED_NODE; 1564 } 1565 } 1566 1567 static uint32_t 1568 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1569 struct lpfc_nodelist *ndlp, 1570 void *arg, 1571 uint32_t evt) 1572 { 1573 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1574 1575 /* Don't do anything that will mess up processing of the 1576 * previous RSCN. 1577 */ 1578 if (vport->fc_flag & FC_RSCN_DEFERRED) 1579 return ndlp->nlp_state; 1580 1581 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1582 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1583 spin_lock_irq(shost->host_lock); 1584 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1585 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1586 spin_unlock_irq(shost->host_lock); 1587 lpfc_disc_set_adisc(vport, ndlp); 1588 return ndlp->nlp_state; 1589 } 1590 1591 static uint32_t 1592 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1593 void *arg, uint32_t evt) 1594 { 1595 struct lpfc_iocbq *cmdiocb; 1596 1597 cmdiocb = (struct lpfc_iocbq *) arg; 1598 1599 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1600 return ndlp->nlp_state; 1601 } 1602 1603 static uint32_t 1604 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1605 void *arg, uint32_t evt) 1606 { 1607 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1608 1609 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1610 return ndlp->nlp_state; 1611 } 1612 1613 static uint32_t 1614 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1615 void *arg, uint32_t evt) 1616 { 1617 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1618 1619 /* Software abort outstanding PRLI before sending acc */ 1620 lpfc_els_abort(vport->phba, ndlp); 1621 1622 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1623 return ndlp->nlp_state; 1624 } 1625 1626 static uint32_t 1627 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1628 void *arg, uint32_t evt) 1629 { 1630 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1631 1632 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1633 return ndlp->nlp_state; 1634 } 1635 1636 /* This routine is envoked when we rcv a PRLO request from a nport 1637 * we are logged into. We should send back a PRLO rsp setting the 1638 * appropriate bits. 1639 * NEXT STATE = PRLI_ISSUE 1640 */ 1641 static uint32_t 1642 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1643 void *arg, uint32_t evt) 1644 { 1645 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1646 1647 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1648 return ndlp->nlp_state; 1649 } 1650 1651 static uint32_t 1652 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1653 void *arg, uint32_t evt) 1654 { 1655 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1656 struct lpfc_iocbq *cmdiocb, *rspiocb; 1657 struct lpfc_hba *phba = vport->phba; 1658 IOCB_t *irsp; 1659 PRLI *npr; 1660 1661 cmdiocb = (struct lpfc_iocbq *) arg; 1662 rspiocb = cmdiocb->context_un.rsp_iocb; 1663 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1664 1665 irsp = &rspiocb->iocb; 1666 if (irsp->ulpStatus) { 1667 if ((vport->port_type == LPFC_NPIV_PORT) && 1668 vport->cfg_restrict_login) { 1669 goto out; 1670 } 1671 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1672 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1673 return ndlp->nlp_state; 1674 } 1675 1676 /* Check out PRLI rsp */ 1677 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1678 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1679 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1680 (npr->prliType == PRLI_FCP_TYPE)) { 1681 if (npr->initiatorFunc) 1682 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1683 if (npr->targetFunc) 1684 ndlp->nlp_type |= NLP_FCP_TARGET; 1685 if (npr->Retry) 1686 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1687 } 1688 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1689 (vport->port_type == LPFC_NPIV_PORT) && 1690 vport->cfg_restrict_login) { 1691 out: 1692 spin_lock_irq(shost->host_lock); 1693 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1694 spin_unlock_irq(shost->host_lock); 1695 lpfc_issue_els_logo(vport, ndlp, 0); 1696 1697 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1698 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1699 return ndlp->nlp_state; 1700 } 1701 1702 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1703 if (ndlp->nlp_type & NLP_FCP_TARGET) 1704 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1705 else 1706 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1707 return ndlp->nlp_state; 1708 } 1709 1710 /*! lpfc_device_rm_prli_issue 1711 * 1712 * \pre 1713 * \post 1714 * \param phba 1715 * \param ndlp 1716 * \param arg 1717 * \param evt 1718 * \return uint32_t 1719 * 1720 * \b Description: 1721 * This routine is envoked when we a request to remove a nport we are in the 1722 * process of PRLIing. We should software abort outstanding prli, unreg 1723 * login, send a logout. We will change node state to UNUSED_NODE, put it 1724 * on plogi list so it can be freed when LOGO completes. 1725 * 1726 */ 1727 1728 static uint32_t 1729 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1730 void *arg, uint32_t evt) 1731 { 1732 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1733 1734 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1735 spin_lock_irq(shost->host_lock); 1736 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1737 spin_unlock_irq(shost->host_lock); 1738 return ndlp->nlp_state; 1739 } else { 1740 /* software abort outstanding PLOGI */ 1741 lpfc_els_abort(vport->phba, ndlp); 1742 1743 lpfc_drop_node(vport, ndlp); 1744 return NLP_STE_FREED_NODE; 1745 } 1746 } 1747 1748 1749 /*! lpfc_device_recov_prli_issue 1750 * 1751 * \pre 1752 * \post 1753 * \param phba 1754 * \param ndlp 1755 * \param arg 1756 * \param evt 1757 * \return uint32_t 1758 * 1759 * \b Description: 1760 * The routine is envoked when the state of a device is unknown, like 1761 * during a link down. We should remove the nodelist entry from the 1762 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1763 * outstanding PRLI command, then free the node entry. 1764 */ 1765 static uint32_t 1766 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1767 struct lpfc_nodelist *ndlp, 1768 void *arg, 1769 uint32_t evt) 1770 { 1771 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1772 struct lpfc_hba *phba = vport->phba; 1773 1774 /* Don't do anything that will mess up processing of the 1775 * previous RSCN. 1776 */ 1777 if (vport->fc_flag & FC_RSCN_DEFERRED) 1778 return ndlp->nlp_state; 1779 1780 /* software abort outstanding PRLI */ 1781 lpfc_els_abort(phba, ndlp); 1782 1783 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1785 spin_lock_irq(shost->host_lock); 1786 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1787 spin_unlock_irq(shost->host_lock); 1788 lpfc_disc_set_adisc(vport, ndlp); 1789 return ndlp->nlp_state; 1790 } 1791 1792 static uint32_t 1793 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1794 void *arg, uint32_t evt) 1795 { 1796 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1797 struct ls_rjt stat; 1798 1799 memset(&stat, 0, sizeof(struct ls_rjt)); 1800 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1801 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1802 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1803 return ndlp->nlp_state; 1804 } 1805 1806 static uint32_t 1807 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1808 void *arg, uint32_t evt) 1809 { 1810 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1811 struct ls_rjt stat; 1812 1813 memset(&stat, 0, sizeof(struct ls_rjt)); 1814 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1815 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1816 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1817 return ndlp->nlp_state; 1818 } 1819 1820 static uint32_t 1821 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1822 void *arg, uint32_t evt) 1823 { 1824 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1825 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1826 1827 spin_lock_irq(shost->host_lock); 1828 ndlp->nlp_flag &= NLP_LOGO_ACC; 1829 spin_unlock_irq(shost->host_lock); 1830 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1831 return ndlp->nlp_state; 1832 } 1833 1834 static uint32_t 1835 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1836 void *arg, uint32_t evt) 1837 { 1838 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1839 struct ls_rjt stat; 1840 1841 memset(&stat, 0, sizeof(struct ls_rjt)); 1842 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1843 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1844 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1845 return ndlp->nlp_state; 1846 } 1847 1848 static uint32_t 1849 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1850 void *arg, uint32_t evt) 1851 { 1852 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1853 struct ls_rjt stat; 1854 1855 memset(&stat, 0, sizeof(struct ls_rjt)); 1856 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1857 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1858 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1859 return ndlp->nlp_state; 1860 } 1861 1862 static uint32_t 1863 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1864 void *arg, uint32_t evt) 1865 { 1866 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1867 1868 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 1869 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1870 spin_lock_irq(shost->host_lock); 1871 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1872 spin_unlock_irq(shost->host_lock); 1873 lpfc_disc_set_adisc(vport, ndlp); 1874 return ndlp->nlp_state; 1875 } 1876 1877 static uint32_t 1878 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1879 void *arg, uint32_t evt) 1880 { 1881 /* 1882 * Take no action. If a LOGO is outstanding, then possibly DevLoss has 1883 * timed out and is calling for Device Remove. In this case, the LOGO 1884 * must be allowed to complete in state LOGO_ISSUE so that the rpi 1885 * and other NLP flags are correctly cleaned up. 1886 */ 1887 return ndlp->nlp_state; 1888 } 1889 1890 static uint32_t 1891 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 1892 struct lpfc_nodelist *ndlp, 1893 void *arg, uint32_t evt) 1894 { 1895 /* 1896 * Device Recovery events have no meaning for a node with a LOGO 1897 * outstanding. The LOGO has to complete first and handle the 1898 * node from that point. 1899 */ 1900 return ndlp->nlp_state; 1901 } 1902 1903 static uint32_t 1904 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1905 void *arg, uint32_t evt) 1906 { 1907 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1908 1909 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1910 return ndlp->nlp_state; 1911 } 1912 1913 static uint32_t 1914 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1915 void *arg, uint32_t evt) 1916 { 1917 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1918 1919 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1920 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1921 return ndlp->nlp_state; 1922 } 1923 1924 static uint32_t 1925 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1926 void *arg, uint32_t evt) 1927 { 1928 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1929 1930 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1931 return ndlp->nlp_state; 1932 } 1933 1934 static uint32_t 1935 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1936 void *arg, uint32_t evt) 1937 { 1938 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1939 1940 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1941 return ndlp->nlp_state; 1942 } 1943 1944 static uint32_t 1945 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1946 void *arg, uint32_t evt) 1947 { 1948 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1949 1950 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1951 return ndlp->nlp_state; 1952 } 1953 1954 static uint32_t 1955 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 1956 struct lpfc_nodelist *ndlp, 1957 void *arg, 1958 uint32_t evt) 1959 { 1960 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1961 1962 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 1963 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1964 spin_lock_irq(shost->host_lock); 1965 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1966 spin_unlock_irq(shost->host_lock); 1967 lpfc_disc_set_adisc(vport, ndlp); 1968 1969 return ndlp->nlp_state; 1970 } 1971 1972 static uint32_t 1973 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1974 void *arg, uint32_t evt) 1975 { 1976 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1977 1978 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1979 return ndlp->nlp_state; 1980 } 1981 1982 static uint32_t 1983 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1984 void *arg, uint32_t evt) 1985 { 1986 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1987 1988 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1989 return ndlp->nlp_state; 1990 } 1991 1992 static uint32_t 1993 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1994 void *arg, uint32_t evt) 1995 { 1996 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1997 1998 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1999 return ndlp->nlp_state; 2000 } 2001 2002 static uint32_t 2003 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2004 struct lpfc_nodelist *ndlp, 2005 void *arg, uint32_t evt) 2006 { 2007 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2008 2009 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2010 return ndlp->nlp_state; 2011 } 2012 2013 static uint32_t 2014 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2015 void *arg, uint32_t evt) 2016 { 2017 struct lpfc_hba *phba = vport->phba; 2018 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2019 2020 /* flush the target */ 2021 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 2022 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2023 2024 /* Treat like rcv logo */ 2025 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2026 return ndlp->nlp_state; 2027 } 2028 2029 static uint32_t 2030 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2031 struct lpfc_nodelist *ndlp, 2032 void *arg, 2033 uint32_t evt) 2034 { 2035 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2036 2037 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2038 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2039 spin_lock_irq(shost->host_lock); 2040 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2041 spin_unlock_irq(shost->host_lock); 2042 lpfc_disc_set_adisc(vport, ndlp); 2043 return ndlp->nlp_state; 2044 } 2045 2046 static uint32_t 2047 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2048 void *arg, uint32_t evt) 2049 { 2050 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2051 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2052 2053 /* Ignore PLOGI if we have an outstanding LOGO */ 2054 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2055 return ndlp->nlp_state; 2056 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2057 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2058 spin_lock_irq(shost->host_lock); 2059 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2060 spin_unlock_irq(shost->host_lock); 2061 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2062 /* send PLOGI immediately, move to PLOGI issue state */ 2063 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2064 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2065 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2066 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2067 } 2068 } 2069 return ndlp->nlp_state; 2070 } 2071 2072 static uint32_t 2073 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2074 void *arg, uint32_t evt) 2075 { 2076 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2077 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2078 struct ls_rjt stat; 2079 2080 memset(&stat, 0, sizeof (struct ls_rjt)); 2081 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2082 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2083 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2084 2085 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2086 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2087 spin_lock_irq(shost->host_lock); 2088 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2089 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2090 spin_unlock_irq(shost->host_lock); 2091 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2092 lpfc_issue_els_adisc(vport, ndlp, 0); 2093 } else { 2094 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2095 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2096 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2097 } 2098 } 2099 return ndlp->nlp_state; 2100 } 2101 2102 static uint32_t 2103 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2104 void *arg, uint32_t evt) 2105 { 2106 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2107 2108 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2109 return ndlp->nlp_state; 2110 } 2111 2112 static uint32_t 2113 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2114 void *arg, uint32_t evt) 2115 { 2116 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2117 2118 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2119 /* 2120 * Do not start discovery if discovery is about to start 2121 * or discovery in progress for this node. Starting discovery 2122 * here will affect the counting of discovery threads. 2123 */ 2124 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2125 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2126 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2127 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2128 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2129 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2130 lpfc_issue_els_adisc(vport, ndlp, 0); 2131 } else { 2132 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2133 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2134 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2135 } 2136 } 2137 return ndlp->nlp_state; 2138 } 2139 2140 static uint32_t 2141 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2142 void *arg, uint32_t evt) 2143 { 2144 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2145 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2146 2147 spin_lock_irq(shost->host_lock); 2148 ndlp->nlp_flag |= NLP_LOGO_ACC; 2149 spin_unlock_irq(shost->host_lock); 2150 2151 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2152 2153 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2154 mod_timer(&ndlp->nlp_delayfunc, 2155 jiffies + msecs_to_jiffies(1000 * 1)); 2156 spin_lock_irq(shost->host_lock); 2157 ndlp->nlp_flag |= NLP_DELAY_TMO; 2158 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2159 spin_unlock_irq(shost->host_lock); 2160 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2161 } else { 2162 spin_lock_irq(shost->host_lock); 2163 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2164 spin_unlock_irq(shost->host_lock); 2165 } 2166 return ndlp->nlp_state; 2167 } 2168 2169 static uint32_t 2170 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2171 void *arg, uint32_t evt) 2172 { 2173 struct lpfc_iocbq *cmdiocb, *rspiocb; 2174 IOCB_t *irsp; 2175 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2176 2177 cmdiocb = (struct lpfc_iocbq *) arg; 2178 rspiocb = cmdiocb->context_un.rsp_iocb; 2179 2180 irsp = &rspiocb->iocb; 2181 if (irsp->ulpStatus) { 2182 spin_lock_irq(shost->host_lock); 2183 ndlp->nlp_flag |= NLP_DEFER_RM; 2184 spin_unlock_irq(shost->host_lock); 2185 return NLP_STE_FREED_NODE; 2186 } 2187 return ndlp->nlp_state; 2188 } 2189 2190 static uint32_t 2191 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2192 void *arg, uint32_t evt) 2193 { 2194 struct lpfc_iocbq *cmdiocb, *rspiocb; 2195 IOCB_t *irsp; 2196 2197 cmdiocb = (struct lpfc_iocbq *) arg; 2198 rspiocb = cmdiocb->context_un.rsp_iocb; 2199 2200 irsp = &rspiocb->iocb; 2201 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2202 lpfc_drop_node(vport, ndlp); 2203 return NLP_STE_FREED_NODE; 2204 } 2205 return ndlp->nlp_state; 2206 } 2207 2208 static uint32_t 2209 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2210 void *arg, uint32_t evt) 2211 { 2212 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2213 2214 /* For the fabric port just clear the fc flags. */ 2215 if (ndlp->nlp_DID == Fabric_DID) { 2216 spin_lock_irq(shost->host_lock); 2217 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2218 spin_unlock_irq(shost->host_lock); 2219 } 2220 lpfc_unreg_rpi(vport, ndlp); 2221 return ndlp->nlp_state; 2222 } 2223 2224 static uint32_t 2225 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2226 void *arg, uint32_t evt) 2227 { 2228 struct lpfc_iocbq *cmdiocb, *rspiocb; 2229 IOCB_t *irsp; 2230 2231 cmdiocb = (struct lpfc_iocbq *) arg; 2232 rspiocb = cmdiocb->context_un.rsp_iocb; 2233 2234 irsp = &rspiocb->iocb; 2235 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2236 lpfc_drop_node(vport, ndlp); 2237 return NLP_STE_FREED_NODE; 2238 } 2239 return ndlp->nlp_state; 2240 } 2241 2242 static uint32_t 2243 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2244 struct lpfc_nodelist *ndlp, 2245 void *arg, uint32_t evt) 2246 { 2247 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2248 MAILBOX_t *mb = &pmb->u.mb; 2249 2250 if (!mb->mbxStatus) { 2251 /* SLI4 ports have preallocated logical rpis. */ 2252 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2253 ndlp->nlp_rpi = mb->un.varWords[0]; 2254 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2255 } else { 2256 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2257 lpfc_drop_node(vport, ndlp); 2258 return NLP_STE_FREED_NODE; 2259 } 2260 } 2261 return ndlp->nlp_state; 2262 } 2263 2264 static uint32_t 2265 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2266 void *arg, uint32_t evt) 2267 { 2268 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2269 2270 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2271 spin_lock_irq(shost->host_lock); 2272 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2273 spin_unlock_irq(shost->host_lock); 2274 return ndlp->nlp_state; 2275 } 2276 lpfc_drop_node(vport, ndlp); 2277 return NLP_STE_FREED_NODE; 2278 } 2279 2280 static uint32_t 2281 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2282 void *arg, uint32_t evt) 2283 { 2284 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2285 2286 /* Don't do anything that will mess up processing of the 2287 * previous RSCN. 2288 */ 2289 if (vport->fc_flag & FC_RSCN_DEFERRED) 2290 return ndlp->nlp_state; 2291 2292 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2293 spin_lock_irq(shost->host_lock); 2294 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2295 spin_unlock_irq(shost->host_lock); 2296 return ndlp->nlp_state; 2297 } 2298 2299 2300 /* This next section defines the NPort Discovery State Machine */ 2301 2302 /* There are 4 different double linked lists nodelist entries can reside on. 2303 * The plogi list and adisc list are used when Link Up discovery or RSCN 2304 * processing is needed. Each list holds the nodes that we will send PLOGI 2305 * or ADISC on. These lists will keep track of what nodes will be effected 2306 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2307 * The unmapped_list will contain all nodes that we have successfully logged 2308 * into at the Fibre Channel level. The mapped_list will contain all nodes 2309 * that are mapped FCP targets. 2310 */ 2311 /* 2312 * The bind list is a list of undiscovered (potentially non-existent) nodes 2313 * that we have saved binding information on. This information is used when 2314 * nodes transition from the unmapped to the mapped list. 2315 */ 2316 /* For UNUSED_NODE state, the node has just been allocated . 2317 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2318 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2319 * and put on the unmapped list. For ADISC processing, the node is taken off 2320 * the ADISC list and placed on either the mapped or unmapped list (depending 2321 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2322 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2323 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2324 * node, the node is taken off the unmapped list. The binding list is checked 2325 * for a valid binding, or a binding is automatically assigned. If binding 2326 * assignment is unsuccessful, the node is left on the unmapped list. If 2327 * binding assignment is successful, the associated binding list entry (if 2328 * any) is removed, and the node is placed on the mapped list. 2329 */ 2330 /* 2331 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2332 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2333 * expire, all effected nodes will receive a DEVICE_RM event. 2334 */ 2335 /* 2336 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2337 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2338 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2339 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2340 * we will first process the ADISC list. 32 entries are processed initially and 2341 * ADISC is initited for each one. Completions / Events for each node are 2342 * funnelled thru the state machine. As each node finishes ADISC processing, it 2343 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2344 * waiting, and the ADISC list count is identically 0, then we are done. For 2345 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2346 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2347 * list. 32 entries are processed initially and PLOGI is initited for each one. 2348 * Completions / Events for each node are funnelled thru the state machine. As 2349 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2350 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2351 * indentically 0, then we are done. We have now completed discovery / RSCN 2352 * handling. Upon completion, ALL nodes should be on either the mapped or 2353 * unmapped lists. 2354 */ 2355 2356 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2357 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2358 /* Action routine Event Current State */ 2359 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2360 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2361 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2362 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2363 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2364 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2365 lpfc_disc_illegal, /* CMPL_PLOGI */ 2366 lpfc_disc_illegal, /* CMPL_PRLI */ 2367 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2368 lpfc_disc_illegal, /* CMPL_ADISC */ 2369 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2370 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2371 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2372 2373 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2374 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2375 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2376 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2377 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2378 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2379 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2380 lpfc_disc_illegal, /* CMPL_PRLI */ 2381 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2382 lpfc_disc_illegal, /* CMPL_ADISC */ 2383 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2384 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2385 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2386 2387 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2388 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2389 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2390 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2391 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2392 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2393 lpfc_disc_illegal, /* CMPL_PLOGI */ 2394 lpfc_disc_illegal, /* CMPL_PRLI */ 2395 lpfc_disc_illegal, /* CMPL_LOGO */ 2396 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2397 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2398 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2399 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2400 2401 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2402 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2403 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2404 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2405 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2406 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2407 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2408 lpfc_disc_illegal, /* CMPL_PRLI */ 2409 lpfc_disc_illegal, /* CMPL_LOGO */ 2410 lpfc_disc_illegal, /* CMPL_ADISC */ 2411 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2412 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2413 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2414 2415 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2416 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2417 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2418 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2419 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2420 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2421 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2422 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2423 lpfc_disc_illegal, /* CMPL_LOGO */ 2424 lpfc_disc_illegal, /* CMPL_ADISC */ 2425 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2426 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2427 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2428 2429 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2430 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2431 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2432 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2433 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2434 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2435 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2436 lpfc_disc_illegal, /* CMPL_PRLI */ 2437 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2438 lpfc_disc_illegal, /* CMPL_ADISC */ 2439 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2440 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2441 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2442 2443 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2444 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2445 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2446 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2447 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2448 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2449 lpfc_disc_illegal, /* CMPL_PLOGI */ 2450 lpfc_disc_illegal, /* CMPL_PRLI */ 2451 lpfc_disc_illegal, /* CMPL_LOGO */ 2452 lpfc_disc_illegal, /* CMPL_ADISC */ 2453 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2454 lpfc_disc_illegal, /* DEVICE_RM */ 2455 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2456 2457 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2458 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2459 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2460 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2461 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2462 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2463 lpfc_disc_illegal, /* CMPL_PLOGI */ 2464 lpfc_disc_illegal, /* CMPL_PRLI */ 2465 lpfc_disc_illegal, /* CMPL_LOGO */ 2466 lpfc_disc_illegal, /* CMPL_ADISC */ 2467 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2468 lpfc_disc_illegal, /* DEVICE_RM */ 2469 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2470 2471 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2472 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2473 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2474 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2475 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2476 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2477 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2478 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2479 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2480 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2481 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2482 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2483 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2484 }; 2485 2486 int 2487 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2488 void *arg, uint32_t evt) 2489 { 2490 uint32_t cur_state, rc; 2491 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2492 uint32_t); 2493 uint32_t got_ndlp = 0; 2494 2495 if (lpfc_nlp_get(ndlp)) 2496 got_ndlp = 1; 2497 2498 cur_state = ndlp->nlp_state; 2499 2500 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2501 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2502 "0211 DSM in event x%x on NPort x%x in " 2503 "state %d Data: x%x\n", 2504 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2505 2506 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2507 "DSM in: evt:%d ste:%d did:x%x", 2508 evt, cur_state, ndlp->nlp_DID); 2509 2510 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2511 rc = (func) (vport, ndlp, arg, evt); 2512 2513 /* DSM out state <rc> on NPort <nlp_DID> */ 2514 if (got_ndlp) { 2515 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2516 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2517 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2518 2519 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2520 "DSM out: ste:%d did:x%x flg:x%x", 2521 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2522 /* Decrement the ndlp reference count held for this function */ 2523 lpfc_nlp_put(ndlp); 2524 } else { 2525 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2526 "0213 DSM out state %d on NPort free\n", rc); 2527 2528 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2529 "DSM out: ste:%d did:x%x flg:x%x", 2530 rc, 0, 0); 2531 } 2532 2533 return rc; 2534 } 2535