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