1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2016 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(abort_list); 207 struct lpfc_sli *psli = &phba->sli; 208 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; 209 struct lpfc_iocbq *iocb, *next_iocb; 210 211 /* Abort outstanding I/O on NPort <nlp_DID> */ 212 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 213 "2819 Abort outstanding I/O on NPort x%x " 214 "Data: x%x x%x x%x\n", 215 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 216 ndlp->nlp_rpi); 217 /* Clean up all fabric IOs first.*/ 218 lpfc_fabric_abort_nport(ndlp); 219 220 /* 221 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 222 * of all ELS IOs that need an ABTS. The IOs need to stay on the 223 * txcmplq so that the abort operation completes them successfully. 224 */ 225 spin_lock_irq(&phba->hbalock); 226 if (phba->sli_rev == LPFC_SLI_REV4) 227 spin_lock(&pring->ring_lock); 228 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 229 /* Add to abort_list on on NDLP match. */ 230 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 231 list_add_tail(&iocb->dlist, &abort_list); 232 } 233 if (phba->sli_rev == LPFC_SLI_REV4) 234 spin_unlock(&pring->ring_lock); 235 spin_unlock_irq(&phba->hbalock); 236 237 /* Abort the targeted IOs and remove them from the abort list. */ 238 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 239 spin_lock_irq(&phba->hbalock); 240 list_del_init(&iocb->dlist); 241 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 242 spin_unlock_irq(&phba->hbalock); 243 } 244 245 INIT_LIST_HEAD(&abort_list); 246 247 /* Now process the txq */ 248 spin_lock_irq(&phba->hbalock); 249 if (phba->sli_rev == LPFC_SLI_REV4) 250 spin_lock(&pring->ring_lock); 251 252 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 253 /* Check to see if iocb matches the nport we are looking for */ 254 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 255 list_del_init(&iocb->list); 256 list_add_tail(&iocb->list, &abort_list); 257 } 258 } 259 260 if (phba->sli_rev == LPFC_SLI_REV4) 261 spin_unlock(&pring->ring_lock); 262 spin_unlock_irq(&phba->hbalock); 263 264 /* Cancel all the IOCBs from the completions list */ 265 lpfc_sli_cancel_iocbs(phba, &abort_list, 266 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 267 268 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 269 return 0; 270 } 271 272 static int 273 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 274 struct lpfc_iocbq *cmdiocb) 275 { 276 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 277 struct lpfc_hba *phba = vport->phba; 278 struct lpfc_dmabuf *pcmd; 279 uint64_t nlp_portwwn = 0; 280 uint32_t *lp; 281 IOCB_t *icmd; 282 struct serv_parm *sp; 283 uint32_t ed_tov; 284 LPFC_MBOXQ_t *mbox; 285 struct ls_rjt stat; 286 int rc; 287 288 memset(&stat, 0, sizeof (struct ls_rjt)); 289 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 290 lp = (uint32_t *) pcmd->virt; 291 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 292 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 293 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 294 "0140 PLOGI Reject: invalid nname\n"); 295 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 296 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 297 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 298 NULL); 299 return 0; 300 } 301 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 302 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 303 "0141 PLOGI Reject: invalid pname\n"); 304 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 305 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 306 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 307 NULL); 308 return 0; 309 } 310 311 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 312 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 313 /* Reject this request because invalid parameters */ 314 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 315 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 316 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 317 NULL); 318 return 0; 319 } 320 icmd = &cmdiocb->iocb; 321 322 /* PLOGI chkparm OK */ 323 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 324 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 325 "x%x x%x x%x\n", 326 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 327 ndlp->nlp_rpi, vport->port_state, 328 vport->fc_flag); 329 330 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 331 ndlp->nlp_fcp_info |= CLASS2; 332 else 333 ndlp->nlp_fcp_info |= CLASS3; 334 335 ndlp->nlp_class_sup = 0; 336 if (sp->cls1.classValid) 337 ndlp->nlp_class_sup |= FC_COS_CLASS1; 338 if (sp->cls2.classValid) 339 ndlp->nlp_class_sup |= FC_COS_CLASS2; 340 if (sp->cls3.classValid) 341 ndlp->nlp_class_sup |= FC_COS_CLASS3; 342 if (sp->cls4.classValid) 343 ndlp->nlp_class_sup |= FC_COS_CLASS4; 344 ndlp->nlp_maxframe = 345 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 346 347 /* if already logged in, do implicit logout */ 348 switch (ndlp->nlp_state) { 349 case NLP_STE_NPR_NODE: 350 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 351 break; 352 case NLP_STE_REG_LOGIN_ISSUE: 353 case NLP_STE_PRLI_ISSUE: 354 case NLP_STE_UNMAPPED_NODE: 355 case NLP_STE_MAPPED_NODE: 356 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */ 357 if (!(ndlp->nlp_type & NLP_FABRIC)) { 358 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 359 ndlp, NULL); 360 return 1; 361 } 362 if (nlp_portwwn != 0 && 363 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 364 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 365 "0143 PLOGI recv'd from DID: x%x " 366 "WWPN changed: old %llx new %llx\n", 367 ndlp->nlp_DID, 368 (unsigned long long)nlp_portwwn, 369 (unsigned long long) 370 wwn_to_u64(sp->portName.u.wwn)); 371 372 ndlp->nlp_prev_state = ndlp->nlp_state; 373 /* rport needs to be unregistered first */ 374 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 375 break; 376 } 377 378 /* Check for Nport to NPort pt2pt protocol */ 379 if ((vport->fc_flag & FC_PT2PT) && 380 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 381 /* rcv'ed PLOGI decides what our NPortId will be */ 382 vport->fc_myDID = icmd->un.rcvels.parmRo; 383 384 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 385 if (sp->cmn.edtovResolution) { 386 /* E_D_TOV ticks are in nanoseconds */ 387 ed_tov = (phba->fc_edtov + 999999) / 1000000; 388 } 389 390 /* 391 * For pt-to-pt, use the larger EDTOV 392 * RATOV = 2 * EDTOV 393 */ 394 if (ed_tov > phba->fc_edtov) 395 phba->fc_edtov = ed_tov; 396 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 397 398 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 399 400 /* Issue config_link / reg_vfi to account for updated TOV's */ 401 402 if (phba->sli_rev == LPFC_SLI_REV4) 403 lpfc_issue_reg_vfi(vport); 404 else { 405 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 406 if (mbox == NULL) 407 goto out; 408 lpfc_config_link(phba, mbox); 409 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 410 mbox->vport = vport; 411 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 412 if (rc == MBX_NOT_FINISHED) { 413 mempool_free(mbox, phba->mbox_mem_pool); 414 goto out; 415 } 416 } 417 418 lpfc_can_disctmo(vport); 419 } 420 421 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 422 if (!mbox) 423 goto out; 424 425 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 426 if (phba->sli_rev == LPFC_SLI_REV4) 427 lpfc_unreg_rpi(vport, ndlp); 428 429 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 430 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 431 if (rc) { 432 mempool_free(mbox, phba->mbox_mem_pool); 433 goto out; 434 } 435 436 /* ACC PLOGI rsp command needs to execute first, 437 * queue this mbox command to be processed later. 438 */ 439 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 440 /* 441 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox 442 * command issued in lpfc_cmpl_els_acc(). 443 */ 444 mbox->vport = vport; 445 spin_lock_irq(shost->host_lock); 446 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 447 spin_unlock_irq(shost->host_lock); 448 449 /* 450 * If there is an outstanding PLOGI issued, abort it before 451 * sending ACC rsp for received PLOGI. If pending plogi 452 * is not canceled here, the plogi will be rejected by 453 * remote port and will be retried. On a configuration with 454 * single discovery thread, this will cause a huge delay in 455 * discovery. Also this will cause multiple state machines 456 * running in parallel for this node. 457 */ 458 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 459 /* software abort outstanding PLOGI */ 460 lpfc_els_abort(phba, ndlp); 461 } 462 463 if ((vport->port_type == LPFC_NPIV_PORT && 464 vport->cfg_restrict_login)) { 465 466 /* In order to preserve RPIs, we want to cleanup 467 * the default RPI the firmware created to rcv 468 * this ELS request. The only way to do this is 469 * to register, then unregister the RPI. 470 */ 471 spin_lock_irq(shost->host_lock); 472 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 473 spin_unlock_irq(shost->host_lock); 474 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 475 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 476 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 477 ndlp, mbox); 478 if (rc) 479 mempool_free(mbox, phba->mbox_mem_pool); 480 return 1; 481 } 482 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 483 if (rc) 484 mempool_free(mbox, phba->mbox_mem_pool); 485 return 1; 486 out: 487 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 488 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 489 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 490 return 0; 491 } 492 493 /** 494 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 495 * @phba: pointer to lpfc hba data structure. 496 * @mboxq: pointer to mailbox object 497 * 498 * This routine is invoked to issue a completion to a rcv'ed 499 * ADISC or PDISC after the paused RPI has been resumed. 500 **/ 501 static void 502 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 503 { 504 struct lpfc_vport *vport; 505 struct lpfc_iocbq *elsiocb; 506 struct lpfc_nodelist *ndlp; 507 uint32_t cmd; 508 509 elsiocb = (struct lpfc_iocbq *)mboxq->context1; 510 ndlp = (struct lpfc_nodelist *) mboxq->context2; 511 vport = mboxq->vport; 512 cmd = elsiocb->drvrTimeout; 513 514 if (cmd == ELS_CMD_ADISC) { 515 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 516 } else { 517 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 518 ndlp, NULL); 519 } 520 kfree(elsiocb); 521 mempool_free(mboxq, phba->mbox_mem_pool); 522 } 523 524 static int 525 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 526 struct lpfc_iocbq *cmdiocb) 527 { 528 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 529 struct lpfc_iocbq *elsiocb; 530 struct lpfc_dmabuf *pcmd; 531 struct serv_parm *sp; 532 struct lpfc_name *pnn, *ppn; 533 struct ls_rjt stat; 534 ADISC *ap; 535 IOCB_t *icmd; 536 uint32_t *lp; 537 uint32_t cmd; 538 539 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 540 lp = (uint32_t *) pcmd->virt; 541 542 cmd = *lp++; 543 if (cmd == ELS_CMD_ADISC) { 544 ap = (ADISC *) lp; 545 pnn = (struct lpfc_name *) & ap->nodeName; 546 ppn = (struct lpfc_name *) & ap->portName; 547 } else { 548 sp = (struct serv_parm *) lp; 549 pnn = (struct lpfc_name *) & sp->nodeName; 550 ppn = (struct lpfc_name *) & sp->portName; 551 } 552 553 icmd = &cmdiocb->iocb; 554 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 555 556 /* 557 * As soon as we send ACC, the remote NPort can 558 * start sending us data. Thus, for SLI4 we must 559 * resume the RPI before the ACC goes out. 560 */ 561 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 562 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 563 GFP_KERNEL); 564 if (elsiocb) { 565 566 /* Save info from cmd IOCB used in rsp */ 567 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 568 sizeof(struct lpfc_iocbq)); 569 570 /* Save the ELS cmd */ 571 elsiocb->drvrTimeout = cmd; 572 573 lpfc_sli4_resume_rpi(ndlp, 574 lpfc_mbx_cmpl_resume_rpi, elsiocb); 575 goto out; 576 } 577 } 578 579 if (cmd == ELS_CMD_ADISC) { 580 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 581 } else { 582 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 583 ndlp, NULL); 584 } 585 out: 586 /* If we are authenticated, move to the proper state */ 587 if (ndlp->nlp_type & NLP_FCP_TARGET) 588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 589 else 590 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 591 592 return 1; 593 } 594 /* Reject this request because invalid parameters */ 595 stat.un.b.lsRjtRsvd0 = 0; 596 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 597 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 598 stat.un.b.vendorUnique = 0; 599 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 600 601 /* 1 sec timeout */ 602 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 603 604 spin_lock_irq(shost->host_lock); 605 ndlp->nlp_flag |= NLP_DELAY_TMO; 606 spin_unlock_irq(shost->host_lock); 607 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 608 ndlp->nlp_prev_state = ndlp->nlp_state; 609 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 610 return 0; 611 } 612 613 static int 614 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 615 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 616 { 617 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 618 struct lpfc_hba *phba = vport->phba; 619 struct lpfc_vport **vports; 620 int i, active_vlink_present = 0 ; 621 622 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 623 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 624 * PLOGIs during LOGO storms from a device. 625 */ 626 spin_lock_irq(shost->host_lock); 627 ndlp->nlp_flag |= NLP_LOGO_ACC; 628 spin_unlock_irq(shost->host_lock); 629 if (els_cmd == ELS_CMD_PRLO) 630 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 631 else 632 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 633 if (ndlp->nlp_DID == Fabric_DID) { 634 if (vport->port_state <= LPFC_FDISC) 635 goto out; 636 lpfc_linkdown_port(vport); 637 spin_lock_irq(shost->host_lock); 638 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 639 spin_unlock_irq(shost->host_lock); 640 vports = lpfc_create_vport_work_array(phba); 641 if (vports) { 642 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 643 i++) { 644 if ((!(vports[i]->fc_flag & 645 FC_VPORT_LOGO_RCVD)) && 646 (vports[i]->port_state > LPFC_FDISC)) { 647 active_vlink_present = 1; 648 break; 649 } 650 } 651 lpfc_destroy_vport_work_array(phba, vports); 652 } 653 654 /* 655 * Don't re-instantiate if vport is marked for deletion. 656 * If we are here first then vport_delete is going to wait 657 * for discovery to complete. 658 */ 659 if (!(vport->load_flag & FC_UNLOADING) && 660 active_vlink_present) { 661 /* 662 * If there are other active VLinks present, 663 * re-instantiate the Vlink using FDISC. 664 */ 665 mod_timer(&ndlp->nlp_delayfunc, 666 jiffies + msecs_to_jiffies(1000)); 667 spin_lock_irq(shost->host_lock); 668 ndlp->nlp_flag |= NLP_DELAY_TMO; 669 spin_unlock_irq(shost->host_lock); 670 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 671 vport->port_state = LPFC_FDISC; 672 } else { 673 spin_lock_irq(shost->host_lock); 674 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 675 spin_unlock_irq(shost->host_lock); 676 lpfc_retry_pport_discovery(phba); 677 } 678 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 679 ((ndlp->nlp_type & NLP_FCP_TARGET) || 680 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 681 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 682 /* Only try to re-login if this is NOT a Fabric Node */ 683 mod_timer(&ndlp->nlp_delayfunc, 684 jiffies + msecs_to_jiffies(1000 * 1)); 685 spin_lock_irq(shost->host_lock); 686 ndlp->nlp_flag |= NLP_DELAY_TMO; 687 spin_unlock_irq(shost->host_lock); 688 689 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 690 } 691 out: 692 ndlp->nlp_prev_state = ndlp->nlp_state; 693 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 694 695 spin_lock_irq(shost->host_lock); 696 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 697 spin_unlock_irq(shost->host_lock); 698 /* The driver has to wait until the ACC completes before it continues 699 * processing the LOGO. The action will resume in 700 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 701 * unreg_login, the driver waits so the ACC does not get aborted. 702 */ 703 return 0; 704 } 705 706 static void 707 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 708 struct lpfc_iocbq *cmdiocb) 709 { 710 struct lpfc_dmabuf *pcmd; 711 uint32_t *lp; 712 PRLI *npr; 713 struct fc_rport *rport = ndlp->rport; 714 u32 roles; 715 716 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 717 lp = (uint32_t *) pcmd->virt; 718 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 719 720 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 721 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 722 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 723 if (npr->prliType == PRLI_FCP_TYPE) { 724 if (npr->initiatorFunc) 725 ndlp->nlp_type |= NLP_FCP_INITIATOR; 726 if (npr->targetFunc) { 727 ndlp->nlp_type |= NLP_FCP_TARGET; 728 if (npr->writeXferRdyDis) 729 ndlp->nlp_flag |= NLP_FIRSTBURST; 730 } 731 if (npr->Retry) 732 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 733 } 734 if (rport) { 735 /* We need to update the rport role values */ 736 roles = FC_RPORT_ROLE_UNKNOWN; 737 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 738 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 739 if (ndlp->nlp_type & NLP_FCP_TARGET) 740 roles |= FC_RPORT_ROLE_FCP_TARGET; 741 742 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 743 "rport rolechg: role:x%x did:x%x flg:x%x", 744 roles, ndlp->nlp_DID, ndlp->nlp_flag); 745 746 fc_remote_port_rolechg(rport, roles); 747 } 748 } 749 750 static uint32_t 751 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 752 { 753 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 754 755 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 756 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 757 return 0; 758 } 759 760 if (!(vport->fc_flag & FC_PT2PT)) { 761 /* Check config parameter use-adisc or FCP-2 */ 762 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 763 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 764 (ndlp->nlp_type & NLP_FCP_TARGET))) { 765 spin_lock_irq(shost->host_lock); 766 ndlp->nlp_flag |= NLP_NPR_ADISC; 767 spin_unlock_irq(shost->host_lock); 768 return 1; 769 } 770 } 771 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 772 lpfc_unreg_rpi(vport, ndlp); 773 return 0; 774 } 775 776 /** 777 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 778 * @phba : Pointer to lpfc_hba structure. 779 * @vport: Pointer to lpfc_vport structure. 780 * @rpi : rpi to be release. 781 * 782 * This function will send a unreg_login mailbox command to the firmware 783 * to release a rpi. 784 **/ 785 void 786 lpfc_release_rpi(struct lpfc_hba *phba, 787 struct lpfc_vport *vport, 788 uint16_t rpi) 789 { 790 LPFC_MBOXQ_t *pmb; 791 int rc; 792 793 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 794 GFP_KERNEL); 795 if (!pmb) 796 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 797 "2796 mailbox memory allocation failed \n"); 798 else { 799 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 800 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 801 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 802 if (rc == MBX_NOT_FINISHED) 803 mempool_free(pmb, phba->mbox_mem_pool); 804 } 805 } 806 807 static uint32_t 808 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 809 void *arg, uint32_t evt) 810 { 811 struct lpfc_hba *phba; 812 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 813 uint16_t rpi; 814 815 phba = vport->phba; 816 /* Release the RPI if reglogin completing */ 817 if (!(phba->pport->load_flag & FC_UNLOADING) && 818 (evt == NLP_EVT_CMPL_REG_LOGIN) && 819 (!pmb->u.mb.mbxStatus)) { 820 rpi = pmb->u.mb.un.varWords[0]; 821 lpfc_release_rpi(phba, vport, rpi); 822 } 823 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 824 "0271 Illegal State Transition: node x%x " 825 "event x%x, state x%x Data: x%x x%x\n", 826 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 827 ndlp->nlp_flag); 828 return ndlp->nlp_state; 829 } 830 831 static uint32_t 832 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 833 void *arg, uint32_t evt) 834 { 835 /* This transition is only legal if we previously 836 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 837 * working on the same NPortID, do nothing for this thread 838 * to stop it. 839 */ 840 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 841 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 842 "0272 Illegal State Transition: node x%x " 843 "event x%x, state x%x Data: x%x x%x\n", 844 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 845 ndlp->nlp_flag); 846 } 847 return ndlp->nlp_state; 848 } 849 850 /* Start of Discovery State Machine routines */ 851 852 static uint32_t 853 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 854 void *arg, uint32_t evt) 855 { 856 struct lpfc_iocbq *cmdiocb; 857 858 cmdiocb = (struct lpfc_iocbq *) arg; 859 860 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 861 return ndlp->nlp_state; 862 } 863 return NLP_STE_FREED_NODE; 864 } 865 866 static uint32_t 867 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 868 void *arg, uint32_t evt) 869 { 870 lpfc_issue_els_logo(vport, ndlp, 0); 871 return ndlp->nlp_state; 872 } 873 874 static uint32_t 875 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 876 void *arg, uint32_t evt) 877 { 878 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 879 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 880 881 spin_lock_irq(shost->host_lock); 882 ndlp->nlp_flag |= NLP_LOGO_ACC; 883 spin_unlock_irq(shost->host_lock); 884 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 885 886 return ndlp->nlp_state; 887 } 888 889 static uint32_t 890 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 891 void *arg, uint32_t evt) 892 { 893 return NLP_STE_FREED_NODE; 894 } 895 896 static uint32_t 897 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 898 void *arg, uint32_t evt) 899 { 900 return NLP_STE_FREED_NODE; 901 } 902 903 static uint32_t 904 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 905 struct lpfc_nodelist *ndlp, 906 void *arg, uint32_t evt) 907 { 908 return ndlp->nlp_state; 909 } 910 911 static uint32_t 912 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 913 void *arg, uint32_t evt) 914 { 915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 916 struct lpfc_hba *phba = vport->phba; 917 struct lpfc_iocbq *cmdiocb = arg; 918 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 919 uint32_t *lp = (uint32_t *) pcmd->virt; 920 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 921 struct ls_rjt stat; 922 int port_cmp; 923 924 memset(&stat, 0, sizeof (struct ls_rjt)); 925 926 /* For a PLOGI, we only accept if our portname is less 927 * than the remote portname. 928 */ 929 phba->fc_stat.elsLogiCol++; 930 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 931 sizeof(struct lpfc_name)); 932 933 if (port_cmp >= 0) { 934 /* Reject this request because the remote node will accept 935 ours */ 936 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 937 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 938 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 939 NULL); 940 } else { 941 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 942 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 943 (vport->num_disc_nodes)) { 944 spin_lock_irq(shost->host_lock); 945 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 946 spin_unlock_irq(shost->host_lock); 947 /* Check if there are more PLOGIs to be sent */ 948 lpfc_more_plogi(vport); 949 if (vport->num_disc_nodes == 0) { 950 spin_lock_irq(shost->host_lock); 951 vport->fc_flag &= ~FC_NDISC_ACTIVE; 952 spin_unlock_irq(shost->host_lock); 953 lpfc_can_disctmo(vport); 954 lpfc_end_rscn(vport); 955 } 956 } 957 } /* If our portname was less */ 958 959 return ndlp->nlp_state; 960 } 961 962 static uint32_t 963 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 964 void *arg, uint32_t evt) 965 { 966 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 967 struct ls_rjt stat; 968 969 memset(&stat, 0, sizeof (struct ls_rjt)); 970 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 971 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 972 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 973 return ndlp->nlp_state; 974 } 975 976 static uint32_t 977 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 978 void *arg, uint32_t evt) 979 { 980 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 981 982 /* software abort outstanding PLOGI */ 983 lpfc_els_abort(vport->phba, ndlp); 984 985 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 986 return ndlp->nlp_state; 987 } 988 989 static uint32_t 990 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 991 void *arg, uint32_t evt) 992 { 993 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 994 struct lpfc_hba *phba = vport->phba; 995 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 996 997 /* software abort outstanding PLOGI */ 998 lpfc_els_abort(phba, ndlp); 999 1000 if (evt == NLP_EVT_RCV_LOGO) { 1001 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1002 } else { 1003 lpfc_issue_els_logo(vport, ndlp, 0); 1004 } 1005 1006 /* Put ndlp in npr state set plogi timer for 1 sec */ 1007 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1008 spin_lock_irq(shost->host_lock); 1009 ndlp->nlp_flag |= NLP_DELAY_TMO; 1010 spin_unlock_irq(shost->host_lock); 1011 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1012 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1013 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1014 1015 return ndlp->nlp_state; 1016 } 1017 1018 static uint32_t 1019 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1020 struct lpfc_nodelist *ndlp, 1021 void *arg, 1022 uint32_t evt) 1023 { 1024 struct lpfc_hba *phba = vport->phba; 1025 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1026 struct lpfc_iocbq *cmdiocb, *rspiocb; 1027 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1028 uint32_t *lp; 1029 IOCB_t *irsp; 1030 struct serv_parm *sp; 1031 uint32_t ed_tov; 1032 LPFC_MBOXQ_t *mbox; 1033 int rc; 1034 1035 cmdiocb = (struct lpfc_iocbq *) arg; 1036 rspiocb = cmdiocb->context_un.rsp_iocb; 1037 1038 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1039 /* Recovery from PLOGI collision logic */ 1040 return ndlp->nlp_state; 1041 } 1042 1043 irsp = &rspiocb->iocb; 1044 1045 if (irsp->ulpStatus) 1046 goto out; 1047 1048 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1049 1050 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1051 if (!prsp) 1052 goto out; 1053 1054 lp = (uint32_t *) prsp->virt; 1055 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1056 1057 /* Some switches have FDMI servers returning 0 for WWN */ 1058 if ((ndlp->nlp_DID != FDMI_DID) && 1059 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1060 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1061 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1062 "0142 PLOGI RSP: Invalid WWN.\n"); 1063 goto out; 1064 } 1065 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1066 goto out; 1067 /* PLOGI chkparm OK */ 1068 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1069 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1070 ndlp->nlp_DID, ndlp->nlp_state, 1071 ndlp->nlp_flag, ndlp->nlp_rpi); 1072 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1073 ndlp->nlp_fcp_info |= CLASS2; 1074 else 1075 ndlp->nlp_fcp_info |= CLASS3; 1076 1077 ndlp->nlp_class_sup = 0; 1078 if (sp->cls1.classValid) 1079 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1080 if (sp->cls2.classValid) 1081 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1082 if (sp->cls3.classValid) 1083 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1084 if (sp->cls4.classValid) 1085 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1086 ndlp->nlp_maxframe = 1087 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1088 1089 if ((vport->fc_flag & FC_PT2PT) && 1090 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1091 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1092 if (sp->cmn.edtovResolution) { 1093 /* E_D_TOV ticks are in nanoseconds */ 1094 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1095 } 1096 1097 /* 1098 * Use the larger EDTOV 1099 * RATOV = 2 * EDTOV for pt-to-pt 1100 */ 1101 if (ed_tov > phba->fc_edtov) 1102 phba->fc_edtov = ed_tov; 1103 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1104 1105 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1106 1107 /* Issue config_link / reg_vfi to account for updated TOV's */ 1108 if (phba->sli_rev == LPFC_SLI_REV4) { 1109 lpfc_issue_reg_vfi(vport); 1110 } else { 1111 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1112 if (!mbox) { 1113 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1114 "0133 PLOGI: no memory " 1115 "for config_link " 1116 "Data: x%x x%x x%x x%x\n", 1117 ndlp->nlp_DID, ndlp->nlp_state, 1118 ndlp->nlp_flag, ndlp->nlp_rpi); 1119 goto out; 1120 } 1121 1122 lpfc_config_link(phba, mbox); 1123 1124 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1125 mbox->vport = vport; 1126 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1127 if (rc == MBX_NOT_FINISHED) { 1128 mempool_free(mbox, phba->mbox_mem_pool); 1129 goto out; 1130 } 1131 } 1132 } 1133 1134 lpfc_unreg_rpi(vport, ndlp); 1135 1136 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1137 if (!mbox) { 1138 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1139 "0018 PLOGI: no memory for reg_login " 1140 "Data: x%x x%x x%x x%x\n", 1141 ndlp->nlp_DID, ndlp->nlp_state, 1142 ndlp->nlp_flag, ndlp->nlp_rpi); 1143 goto out; 1144 } 1145 1146 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1147 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1148 switch (ndlp->nlp_DID) { 1149 case NameServer_DID: 1150 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1151 break; 1152 case FDMI_DID: 1153 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1154 break; 1155 default: 1156 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1157 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1158 } 1159 mbox->context2 = lpfc_nlp_get(ndlp); 1160 mbox->vport = vport; 1161 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1162 != MBX_NOT_FINISHED) { 1163 lpfc_nlp_set_state(vport, ndlp, 1164 NLP_STE_REG_LOGIN_ISSUE); 1165 return ndlp->nlp_state; 1166 } 1167 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1168 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1169 /* decrement node reference count to the failed mbox 1170 * command 1171 */ 1172 lpfc_nlp_put(ndlp); 1173 mp = (struct lpfc_dmabuf *) mbox->context1; 1174 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1175 kfree(mp); 1176 mempool_free(mbox, phba->mbox_mem_pool); 1177 1178 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1179 "0134 PLOGI: cannot issue reg_login " 1180 "Data: x%x x%x x%x x%x\n", 1181 ndlp->nlp_DID, ndlp->nlp_state, 1182 ndlp->nlp_flag, ndlp->nlp_rpi); 1183 } else { 1184 mempool_free(mbox, phba->mbox_mem_pool); 1185 1186 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1187 "0135 PLOGI: cannot format reg_login " 1188 "Data: x%x x%x x%x x%x\n", 1189 ndlp->nlp_DID, ndlp->nlp_state, 1190 ndlp->nlp_flag, ndlp->nlp_rpi); 1191 } 1192 1193 1194 out: 1195 if (ndlp->nlp_DID == NameServer_DID) { 1196 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1197 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1198 "0261 Cannot Register NameServer login\n"); 1199 } 1200 1201 /* 1202 ** In case the node reference counter does not go to zero, ensure that 1203 ** the stale state for the node is not processed. 1204 */ 1205 1206 ndlp->nlp_prev_state = ndlp->nlp_state; 1207 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1208 spin_lock_irq(shost->host_lock); 1209 ndlp->nlp_flag |= NLP_DEFER_RM; 1210 spin_unlock_irq(shost->host_lock); 1211 return NLP_STE_FREED_NODE; 1212 } 1213 1214 static uint32_t 1215 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1216 void *arg, uint32_t evt) 1217 { 1218 return ndlp->nlp_state; 1219 } 1220 1221 static uint32_t 1222 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1223 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1224 { 1225 struct lpfc_hba *phba; 1226 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1227 MAILBOX_t *mb = &pmb->u.mb; 1228 uint16_t rpi; 1229 1230 phba = vport->phba; 1231 /* Release the RPI */ 1232 if (!(phba->pport->load_flag & FC_UNLOADING) && 1233 !mb->mbxStatus) { 1234 rpi = pmb->u.mb.un.varWords[0]; 1235 lpfc_release_rpi(phba, vport, rpi); 1236 } 1237 return ndlp->nlp_state; 1238 } 1239 1240 static uint32_t 1241 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1242 void *arg, uint32_t evt) 1243 { 1244 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1245 1246 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1247 spin_lock_irq(shost->host_lock); 1248 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1249 spin_unlock_irq(shost->host_lock); 1250 return ndlp->nlp_state; 1251 } else { 1252 /* software abort outstanding PLOGI */ 1253 lpfc_els_abort(vport->phba, ndlp); 1254 1255 lpfc_drop_node(vport, ndlp); 1256 return NLP_STE_FREED_NODE; 1257 } 1258 } 1259 1260 static uint32_t 1261 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1262 struct lpfc_nodelist *ndlp, 1263 void *arg, 1264 uint32_t evt) 1265 { 1266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1267 struct lpfc_hba *phba = vport->phba; 1268 1269 /* Don't do anything that will mess up processing of the 1270 * previous RSCN. 1271 */ 1272 if (vport->fc_flag & FC_RSCN_DEFERRED) 1273 return ndlp->nlp_state; 1274 1275 /* software abort outstanding PLOGI */ 1276 lpfc_els_abort(phba, ndlp); 1277 1278 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1279 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1280 spin_lock_irq(shost->host_lock); 1281 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1282 spin_unlock_irq(shost->host_lock); 1283 1284 return ndlp->nlp_state; 1285 } 1286 1287 static uint32_t 1288 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1289 void *arg, uint32_t evt) 1290 { 1291 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1292 struct lpfc_hba *phba = vport->phba; 1293 struct lpfc_iocbq *cmdiocb; 1294 1295 /* software abort outstanding ADISC */ 1296 lpfc_els_abort(phba, ndlp); 1297 1298 cmdiocb = (struct lpfc_iocbq *) arg; 1299 1300 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1301 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1302 spin_lock_irq(shost->host_lock); 1303 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1304 spin_unlock_irq(shost->host_lock); 1305 if (vport->num_disc_nodes) 1306 lpfc_more_adisc(vport); 1307 } 1308 return ndlp->nlp_state; 1309 } 1310 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1311 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1312 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1313 1314 return ndlp->nlp_state; 1315 } 1316 1317 static uint32_t 1318 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1319 void *arg, uint32_t evt) 1320 { 1321 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1322 1323 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1324 return ndlp->nlp_state; 1325 } 1326 1327 static uint32_t 1328 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1329 void *arg, uint32_t evt) 1330 { 1331 struct lpfc_hba *phba = vport->phba; 1332 struct lpfc_iocbq *cmdiocb; 1333 1334 cmdiocb = (struct lpfc_iocbq *) arg; 1335 1336 /* software abort outstanding ADISC */ 1337 lpfc_els_abort(phba, ndlp); 1338 1339 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1340 return ndlp->nlp_state; 1341 } 1342 1343 static uint32_t 1344 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1345 struct lpfc_nodelist *ndlp, 1346 void *arg, uint32_t evt) 1347 { 1348 struct lpfc_iocbq *cmdiocb; 1349 1350 cmdiocb = (struct lpfc_iocbq *) arg; 1351 1352 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1353 return ndlp->nlp_state; 1354 } 1355 1356 static uint32_t 1357 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1358 void *arg, uint32_t evt) 1359 { 1360 struct lpfc_iocbq *cmdiocb; 1361 1362 cmdiocb = (struct lpfc_iocbq *) arg; 1363 1364 /* Treat like rcv logo */ 1365 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1366 return ndlp->nlp_state; 1367 } 1368 1369 static uint32_t 1370 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1371 struct lpfc_nodelist *ndlp, 1372 void *arg, uint32_t evt) 1373 { 1374 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1375 struct lpfc_hba *phba = vport->phba; 1376 struct lpfc_iocbq *cmdiocb, *rspiocb; 1377 IOCB_t *irsp; 1378 ADISC *ap; 1379 int rc; 1380 1381 cmdiocb = (struct lpfc_iocbq *) arg; 1382 rspiocb = cmdiocb->context_un.rsp_iocb; 1383 1384 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1385 irsp = &rspiocb->iocb; 1386 1387 if ((irsp->ulpStatus) || 1388 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1389 /* 1 sec timeout */ 1390 mod_timer(&ndlp->nlp_delayfunc, 1391 jiffies + msecs_to_jiffies(1000)); 1392 spin_lock_irq(shost->host_lock); 1393 ndlp->nlp_flag |= NLP_DELAY_TMO; 1394 spin_unlock_irq(shost->host_lock); 1395 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1396 1397 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1398 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1399 1400 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1401 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1402 lpfc_unreg_rpi(vport, ndlp); 1403 return ndlp->nlp_state; 1404 } 1405 1406 if (phba->sli_rev == LPFC_SLI_REV4) { 1407 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1408 if (rc) { 1409 /* Stay in state and retry. */ 1410 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1411 return ndlp->nlp_state; 1412 } 1413 } 1414 1415 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1416 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1417 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1418 } else { 1419 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1420 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1421 } 1422 1423 return ndlp->nlp_state; 1424 } 1425 1426 static uint32_t 1427 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1428 void *arg, uint32_t evt) 1429 { 1430 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1431 1432 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1433 spin_lock_irq(shost->host_lock); 1434 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1435 spin_unlock_irq(shost->host_lock); 1436 return ndlp->nlp_state; 1437 } else { 1438 /* software abort outstanding ADISC */ 1439 lpfc_els_abort(vport->phba, ndlp); 1440 1441 lpfc_drop_node(vport, ndlp); 1442 return NLP_STE_FREED_NODE; 1443 } 1444 } 1445 1446 static uint32_t 1447 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1448 struct lpfc_nodelist *ndlp, 1449 void *arg, 1450 uint32_t evt) 1451 { 1452 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1453 struct lpfc_hba *phba = vport->phba; 1454 1455 /* Don't do anything that will mess up processing of the 1456 * previous RSCN. 1457 */ 1458 if (vport->fc_flag & FC_RSCN_DEFERRED) 1459 return ndlp->nlp_state; 1460 1461 /* software abort outstanding ADISC */ 1462 lpfc_els_abort(phba, ndlp); 1463 1464 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1465 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1466 spin_lock_irq(shost->host_lock); 1467 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1468 spin_unlock_irq(shost->host_lock); 1469 lpfc_disc_set_adisc(vport, ndlp); 1470 return ndlp->nlp_state; 1471 } 1472 1473 static uint32_t 1474 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1475 struct lpfc_nodelist *ndlp, 1476 void *arg, 1477 uint32_t evt) 1478 { 1479 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1480 1481 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1482 return ndlp->nlp_state; 1483 } 1484 1485 static uint32_t 1486 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1487 struct lpfc_nodelist *ndlp, 1488 void *arg, 1489 uint32_t evt) 1490 { 1491 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1492 1493 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1494 return ndlp->nlp_state; 1495 } 1496 1497 static uint32_t 1498 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1499 struct lpfc_nodelist *ndlp, 1500 void *arg, 1501 uint32_t evt) 1502 { 1503 struct lpfc_hba *phba = vport->phba; 1504 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1505 LPFC_MBOXQ_t *mb; 1506 LPFC_MBOXQ_t *nextmb; 1507 struct lpfc_dmabuf *mp; 1508 1509 cmdiocb = (struct lpfc_iocbq *) arg; 1510 1511 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1512 if ((mb = phba->sli.mbox_active)) { 1513 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1514 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1515 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1516 lpfc_nlp_put(ndlp); 1517 mb->context2 = NULL; 1518 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1519 } 1520 } 1521 1522 spin_lock_irq(&phba->hbalock); 1523 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1524 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1525 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1526 mp = (struct lpfc_dmabuf *) (mb->context1); 1527 if (mp) { 1528 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1529 kfree(mp); 1530 } 1531 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1532 lpfc_nlp_put(ndlp); 1533 list_del(&mb->list); 1534 phba->sli.mboxq_cnt--; 1535 mempool_free(mb, phba->mbox_mem_pool); 1536 } 1537 } 1538 spin_unlock_irq(&phba->hbalock); 1539 1540 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1541 return ndlp->nlp_state; 1542 } 1543 1544 static uint32_t 1545 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1546 struct lpfc_nodelist *ndlp, 1547 void *arg, 1548 uint32_t evt) 1549 { 1550 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1551 1552 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1553 return ndlp->nlp_state; 1554 } 1555 1556 static uint32_t 1557 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1558 struct lpfc_nodelist *ndlp, 1559 void *arg, 1560 uint32_t evt) 1561 { 1562 struct lpfc_iocbq *cmdiocb; 1563 1564 cmdiocb = (struct lpfc_iocbq *) arg; 1565 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1566 return ndlp->nlp_state; 1567 } 1568 1569 static uint32_t 1570 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1571 struct lpfc_nodelist *ndlp, 1572 void *arg, 1573 uint32_t evt) 1574 { 1575 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1576 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1577 MAILBOX_t *mb = &pmb->u.mb; 1578 uint32_t did = mb->un.varWords[1]; 1579 1580 if (mb->mbxStatus) { 1581 /* RegLogin failed */ 1582 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1583 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1584 "x%x\n", 1585 did, mb->mbxStatus, vport->port_state, 1586 mb->un.varRegLogin.vpi, 1587 mb->un.varRegLogin.rpi); 1588 /* 1589 * If RegLogin failed due to lack of HBA resources do not 1590 * retry discovery. 1591 */ 1592 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1593 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1594 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1595 return ndlp->nlp_state; 1596 } 1597 1598 /* Put ndlp in npr state set plogi timer for 1 sec */ 1599 mod_timer(&ndlp->nlp_delayfunc, 1600 jiffies + msecs_to_jiffies(1000 * 1)); 1601 spin_lock_irq(shost->host_lock); 1602 ndlp->nlp_flag |= NLP_DELAY_TMO; 1603 spin_unlock_irq(shost->host_lock); 1604 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1605 1606 lpfc_issue_els_logo(vport, ndlp, 0); 1607 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1608 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1609 return ndlp->nlp_state; 1610 } 1611 1612 /* SLI4 ports have preallocated logical rpis. */ 1613 if (vport->phba->sli_rev < LPFC_SLI_REV4) 1614 ndlp->nlp_rpi = mb->un.varWords[0]; 1615 1616 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1617 1618 /* Only if we are not a fabric nport do we issue PRLI */ 1619 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1620 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1621 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1622 lpfc_issue_els_prli(vport, ndlp, 0); 1623 } else { 1624 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1625 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1626 } 1627 return ndlp->nlp_state; 1628 } 1629 1630 static uint32_t 1631 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1632 struct lpfc_nodelist *ndlp, 1633 void *arg, 1634 uint32_t evt) 1635 { 1636 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1637 1638 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1639 spin_lock_irq(shost->host_lock); 1640 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1641 spin_unlock_irq(shost->host_lock); 1642 return ndlp->nlp_state; 1643 } else { 1644 lpfc_drop_node(vport, ndlp); 1645 return NLP_STE_FREED_NODE; 1646 } 1647 } 1648 1649 static uint32_t 1650 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1651 struct lpfc_nodelist *ndlp, 1652 void *arg, 1653 uint32_t evt) 1654 { 1655 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1656 1657 /* Don't do anything that will mess up processing of the 1658 * previous RSCN. 1659 */ 1660 if (vport->fc_flag & FC_RSCN_DEFERRED) 1661 return ndlp->nlp_state; 1662 1663 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1664 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1665 spin_lock_irq(shost->host_lock); 1666 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1667 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1668 spin_unlock_irq(shost->host_lock); 1669 lpfc_disc_set_adisc(vport, ndlp); 1670 return ndlp->nlp_state; 1671 } 1672 1673 static uint32_t 1674 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1675 void *arg, uint32_t evt) 1676 { 1677 struct lpfc_iocbq *cmdiocb; 1678 1679 cmdiocb = (struct lpfc_iocbq *) arg; 1680 1681 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1682 return ndlp->nlp_state; 1683 } 1684 1685 static uint32_t 1686 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1687 void *arg, uint32_t evt) 1688 { 1689 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1690 1691 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1692 return ndlp->nlp_state; 1693 } 1694 1695 static uint32_t 1696 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1697 void *arg, uint32_t evt) 1698 { 1699 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1700 1701 /* Software abort outstanding PRLI before sending acc */ 1702 lpfc_els_abort(vport->phba, ndlp); 1703 1704 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1705 return ndlp->nlp_state; 1706 } 1707 1708 static uint32_t 1709 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1710 void *arg, uint32_t evt) 1711 { 1712 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1713 1714 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1715 return ndlp->nlp_state; 1716 } 1717 1718 /* This routine is envoked when we rcv a PRLO request from a nport 1719 * we are logged into. We should send back a PRLO rsp setting the 1720 * appropriate bits. 1721 * NEXT STATE = PRLI_ISSUE 1722 */ 1723 static uint32_t 1724 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1725 void *arg, uint32_t evt) 1726 { 1727 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1728 1729 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1730 return ndlp->nlp_state; 1731 } 1732 1733 static uint32_t 1734 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1735 void *arg, uint32_t evt) 1736 { 1737 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1738 struct lpfc_iocbq *cmdiocb, *rspiocb; 1739 struct lpfc_hba *phba = vport->phba; 1740 IOCB_t *irsp; 1741 PRLI *npr; 1742 1743 cmdiocb = (struct lpfc_iocbq *) arg; 1744 rspiocb = cmdiocb->context_un.rsp_iocb; 1745 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1746 1747 irsp = &rspiocb->iocb; 1748 if (irsp->ulpStatus) { 1749 if ((vport->port_type == LPFC_NPIV_PORT) && 1750 vport->cfg_restrict_login) { 1751 goto out; 1752 } 1753 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1754 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1755 return ndlp->nlp_state; 1756 } 1757 1758 /* Check out PRLI rsp */ 1759 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1760 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1761 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 1762 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1763 (npr->prliType == PRLI_FCP_TYPE)) { 1764 if (npr->initiatorFunc) 1765 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1766 if (npr->targetFunc) { 1767 ndlp->nlp_type |= NLP_FCP_TARGET; 1768 if (npr->writeXferRdyDis) 1769 ndlp->nlp_flag |= NLP_FIRSTBURST; 1770 } 1771 if (npr->Retry) 1772 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1773 } 1774 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1775 (vport->port_type == LPFC_NPIV_PORT) && 1776 vport->cfg_restrict_login) { 1777 out: 1778 spin_lock_irq(shost->host_lock); 1779 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1780 spin_unlock_irq(shost->host_lock); 1781 lpfc_issue_els_logo(vport, ndlp, 0); 1782 1783 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1785 return ndlp->nlp_state; 1786 } 1787 1788 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1789 if (ndlp->nlp_type & NLP_FCP_TARGET) 1790 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1791 else 1792 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1793 return ndlp->nlp_state; 1794 } 1795 1796 /*! lpfc_device_rm_prli_issue 1797 * 1798 * \pre 1799 * \post 1800 * \param phba 1801 * \param ndlp 1802 * \param arg 1803 * \param evt 1804 * \return uint32_t 1805 * 1806 * \b Description: 1807 * This routine is envoked when we a request to remove a nport we are in the 1808 * process of PRLIing. We should software abort outstanding prli, unreg 1809 * login, send a logout. We will change node state to UNUSED_NODE, put it 1810 * on plogi list so it can be freed when LOGO completes. 1811 * 1812 */ 1813 1814 static uint32_t 1815 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1816 void *arg, uint32_t evt) 1817 { 1818 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1819 1820 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1821 spin_lock_irq(shost->host_lock); 1822 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1823 spin_unlock_irq(shost->host_lock); 1824 return ndlp->nlp_state; 1825 } else { 1826 /* software abort outstanding PLOGI */ 1827 lpfc_els_abort(vport->phba, ndlp); 1828 1829 lpfc_drop_node(vport, ndlp); 1830 return NLP_STE_FREED_NODE; 1831 } 1832 } 1833 1834 1835 /*! lpfc_device_recov_prli_issue 1836 * 1837 * \pre 1838 * \post 1839 * \param phba 1840 * \param ndlp 1841 * \param arg 1842 * \param evt 1843 * \return uint32_t 1844 * 1845 * \b Description: 1846 * The routine is envoked when the state of a device is unknown, like 1847 * during a link down. We should remove the nodelist entry from the 1848 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1849 * outstanding PRLI command, then free the node entry. 1850 */ 1851 static uint32_t 1852 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1853 struct lpfc_nodelist *ndlp, 1854 void *arg, 1855 uint32_t evt) 1856 { 1857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1858 struct lpfc_hba *phba = vport->phba; 1859 1860 /* Don't do anything that will mess up processing of the 1861 * previous RSCN. 1862 */ 1863 if (vport->fc_flag & FC_RSCN_DEFERRED) 1864 return ndlp->nlp_state; 1865 1866 /* software abort outstanding PRLI */ 1867 lpfc_els_abort(phba, ndlp); 1868 1869 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1870 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1871 spin_lock_irq(shost->host_lock); 1872 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1873 spin_unlock_irq(shost->host_lock); 1874 lpfc_disc_set_adisc(vport, ndlp); 1875 return ndlp->nlp_state; 1876 } 1877 1878 static uint32_t 1879 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1880 void *arg, uint32_t evt) 1881 { 1882 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1883 struct ls_rjt stat; 1884 1885 memset(&stat, 0, sizeof(struct ls_rjt)); 1886 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1887 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1888 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1889 return ndlp->nlp_state; 1890 } 1891 1892 static uint32_t 1893 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1894 void *arg, uint32_t evt) 1895 { 1896 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1897 struct ls_rjt stat; 1898 1899 memset(&stat, 0, sizeof(struct ls_rjt)); 1900 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1901 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1902 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1903 return ndlp->nlp_state; 1904 } 1905 1906 static uint32_t 1907 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1908 void *arg, uint32_t evt) 1909 { 1910 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1911 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1912 1913 spin_lock_irq(shost->host_lock); 1914 ndlp->nlp_flag |= NLP_LOGO_ACC; 1915 spin_unlock_irq(shost->host_lock); 1916 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1917 return ndlp->nlp_state; 1918 } 1919 1920 static uint32_t 1921 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1922 void *arg, uint32_t evt) 1923 { 1924 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1925 struct ls_rjt stat; 1926 1927 memset(&stat, 0, sizeof(struct ls_rjt)); 1928 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1929 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1930 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1931 return ndlp->nlp_state; 1932 } 1933 1934 static uint32_t 1935 lpfc_rcv_prlo_logo_issue(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 struct ls_rjt stat; 1940 1941 memset(&stat, 0, sizeof(struct ls_rjt)); 1942 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1943 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1944 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1945 return ndlp->nlp_state; 1946 } 1947 1948 static uint32_t 1949 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1950 void *arg, uint32_t evt) 1951 { 1952 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1953 1954 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 1955 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1956 spin_lock_irq(shost->host_lock); 1957 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1958 spin_unlock_irq(shost->host_lock); 1959 lpfc_disc_set_adisc(vport, ndlp); 1960 return ndlp->nlp_state; 1961 } 1962 1963 static uint32_t 1964 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1965 void *arg, uint32_t evt) 1966 { 1967 /* 1968 * Take no action. If a LOGO is outstanding, then possibly DevLoss has 1969 * timed out and is calling for Device Remove. In this case, the LOGO 1970 * must be allowed to complete in state LOGO_ISSUE so that the rpi 1971 * and other NLP flags are correctly cleaned up. 1972 */ 1973 return ndlp->nlp_state; 1974 } 1975 1976 static uint32_t 1977 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 1978 struct lpfc_nodelist *ndlp, 1979 void *arg, uint32_t evt) 1980 { 1981 /* 1982 * Device Recovery events have no meaning for a node with a LOGO 1983 * outstanding. The LOGO has to complete first and handle the 1984 * node from that point. 1985 */ 1986 return ndlp->nlp_state; 1987 } 1988 1989 static uint32_t 1990 lpfc_rcv_plogi_unmap_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_plogi(vport, ndlp, cmdiocb); 1996 return ndlp->nlp_state; 1997 } 1998 1999 static uint32_t 2000 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2001 void *arg, uint32_t evt) 2002 { 2003 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2004 2005 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2006 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2007 return ndlp->nlp_state; 2008 } 2009 2010 static uint32_t 2011 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2012 void *arg, uint32_t evt) 2013 { 2014 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2015 2016 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2017 return ndlp->nlp_state; 2018 } 2019 2020 static uint32_t 2021 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2022 void *arg, uint32_t evt) 2023 { 2024 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2025 2026 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2027 return ndlp->nlp_state; 2028 } 2029 2030 static uint32_t 2031 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2032 void *arg, uint32_t evt) 2033 { 2034 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2035 2036 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2037 return ndlp->nlp_state; 2038 } 2039 2040 static uint32_t 2041 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2042 struct lpfc_nodelist *ndlp, 2043 void *arg, 2044 uint32_t evt) 2045 { 2046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2047 2048 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2049 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2050 spin_lock_irq(shost->host_lock); 2051 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2052 spin_unlock_irq(shost->host_lock); 2053 lpfc_disc_set_adisc(vport, ndlp); 2054 2055 return ndlp->nlp_state; 2056 } 2057 2058 static uint32_t 2059 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2060 void *arg, uint32_t evt) 2061 { 2062 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2063 2064 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2065 return ndlp->nlp_state; 2066 } 2067 2068 static uint32_t 2069 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2070 void *arg, uint32_t evt) 2071 { 2072 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2073 2074 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2075 return ndlp->nlp_state; 2076 } 2077 2078 static uint32_t 2079 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2080 void *arg, uint32_t evt) 2081 { 2082 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2083 2084 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2085 return ndlp->nlp_state; 2086 } 2087 2088 static uint32_t 2089 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2090 struct lpfc_nodelist *ndlp, 2091 void *arg, uint32_t evt) 2092 { 2093 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2094 2095 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2096 return ndlp->nlp_state; 2097 } 2098 2099 static uint32_t 2100 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2101 void *arg, uint32_t evt) 2102 { 2103 struct lpfc_hba *phba = vport->phba; 2104 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2105 2106 /* flush the target */ 2107 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 2108 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2109 2110 /* Treat like rcv logo */ 2111 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2112 return ndlp->nlp_state; 2113 } 2114 2115 static uint32_t 2116 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2117 struct lpfc_nodelist *ndlp, 2118 void *arg, 2119 uint32_t evt) 2120 { 2121 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2122 2123 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2124 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2125 spin_lock_irq(shost->host_lock); 2126 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2127 spin_unlock_irq(shost->host_lock); 2128 lpfc_disc_set_adisc(vport, ndlp); 2129 return ndlp->nlp_state; 2130 } 2131 2132 static uint32_t 2133 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2134 void *arg, uint32_t evt) 2135 { 2136 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2137 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2138 2139 /* Ignore PLOGI if we have an outstanding LOGO */ 2140 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2141 return ndlp->nlp_state; 2142 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2143 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2144 spin_lock_irq(shost->host_lock); 2145 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2146 spin_unlock_irq(shost->host_lock); 2147 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2148 /* send PLOGI immediately, move to PLOGI issue state */ 2149 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2150 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2151 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2152 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2153 } 2154 } 2155 return ndlp->nlp_state; 2156 } 2157 2158 static uint32_t 2159 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2160 void *arg, uint32_t evt) 2161 { 2162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2163 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2164 struct ls_rjt stat; 2165 2166 memset(&stat, 0, sizeof (struct ls_rjt)); 2167 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2168 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2169 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2170 2171 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2172 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2173 spin_lock_irq(shost->host_lock); 2174 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2175 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2176 spin_unlock_irq(shost->host_lock); 2177 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2178 lpfc_issue_els_adisc(vport, ndlp, 0); 2179 } else { 2180 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2181 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2182 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2183 } 2184 } 2185 return ndlp->nlp_state; 2186 } 2187 2188 static uint32_t 2189 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2190 void *arg, uint32_t evt) 2191 { 2192 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2193 2194 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2195 return ndlp->nlp_state; 2196 } 2197 2198 static uint32_t 2199 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2200 void *arg, uint32_t evt) 2201 { 2202 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2203 2204 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2205 /* 2206 * Do not start discovery if discovery is about to start 2207 * or discovery in progress for this node. Starting discovery 2208 * here will affect the counting of discovery threads. 2209 */ 2210 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2211 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2212 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2213 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2214 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2215 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2216 lpfc_issue_els_adisc(vport, ndlp, 0); 2217 } else { 2218 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2219 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2220 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2221 } 2222 } 2223 return ndlp->nlp_state; 2224 } 2225 2226 static uint32_t 2227 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2228 void *arg, uint32_t evt) 2229 { 2230 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2231 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2232 2233 spin_lock_irq(shost->host_lock); 2234 ndlp->nlp_flag |= NLP_LOGO_ACC; 2235 spin_unlock_irq(shost->host_lock); 2236 2237 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2238 2239 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2240 mod_timer(&ndlp->nlp_delayfunc, 2241 jiffies + msecs_to_jiffies(1000 * 1)); 2242 spin_lock_irq(shost->host_lock); 2243 ndlp->nlp_flag |= NLP_DELAY_TMO; 2244 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2245 spin_unlock_irq(shost->host_lock); 2246 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2247 } else { 2248 spin_lock_irq(shost->host_lock); 2249 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2250 spin_unlock_irq(shost->host_lock); 2251 } 2252 return ndlp->nlp_state; 2253 } 2254 2255 static uint32_t 2256 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2257 void *arg, uint32_t evt) 2258 { 2259 struct lpfc_iocbq *cmdiocb, *rspiocb; 2260 IOCB_t *irsp; 2261 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2262 2263 cmdiocb = (struct lpfc_iocbq *) arg; 2264 rspiocb = cmdiocb->context_un.rsp_iocb; 2265 2266 irsp = &rspiocb->iocb; 2267 if (irsp->ulpStatus) { 2268 spin_lock_irq(shost->host_lock); 2269 ndlp->nlp_flag |= NLP_DEFER_RM; 2270 spin_unlock_irq(shost->host_lock); 2271 return NLP_STE_FREED_NODE; 2272 } 2273 return ndlp->nlp_state; 2274 } 2275 2276 static uint32_t 2277 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2278 void *arg, uint32_t evt) 2279 { 2280 struct lpfc_iocbq *cmdiocb, *rspiocb; 2281 IOCB_t *irsp; 2282 2283 cmdiocb = (struct lpfc_iocbq *) arg; 2284 rspiocb = cmdiocb->context_un.rsp_iocb; 2285 2286 irsp = &rspiocb->iocb; 2287 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2288 lpfc_drop_node(vport, ndlp); 2289 return NLP_STE_FREED_NODE; 2290 } 2291 return ndlp->nlp_state; 2292 } 2293 2294 static uint32_t 2295 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2296 void *arg, uint32_t evt) 2297 { 2298 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2299 2300 /* For the fabric port just clear the fc flags. */ 2301 if (ndlp->nlp_DID == Fabric_DID) { 2302 spin_lock_irq(shost->host_lock); 2303 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2304 spin_unlock_irq(shost->host_lock); 2305 } 2306 lpfc_unreg_rpi(vport, ndlp); 2307 return ndlp->nlp_state; 2308 } 2309 2310 static uint32_t 2311 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2312 void *arg, uint32_t evt) 2313 { 2314 struct lpfc_iocbq *cmdiocb, *rspiocb; 2315 IOCB_t *irsp; 2316 2317 cmdiocb = (struct lpfc_iocbq *) arg; 2318 rspiocb = cmdiocb->context_un.rsp_iocb; 2319 2320 irsp = &rspiocb->iocb; 2321 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2322 lpfc_drop_node(vport, ndlp); 2323 return NLP_STE_FREED_NODE; 2324 } 2325 return ndlp->nlp_state; 2326 } 2327 2328 static uint32_t 2329 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2330 struct lpfc_nodelist *ndlp, 2331 void *arg, uint32_t evt) 2332 { 2333 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2334 MAILBOX_t *mb = &pmb->u.mb; 2335 2336 if (!mb->mbxStatus) { 2337 /* SLI4 ports have preallocated logical rpis. */ 2338 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2339 ndlp->nlp_rpi = mb->un.varWords[0]; 2340 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2341 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2342 lpfc_unreg_rpi(vport, ndlp); 2343 } 2344 } else { 2345 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2346 lpfc_drop_node(vport, ndlp); 2347 return NLP_STE_FREED_NODE; 2348 } 2349 } 2350 return ndlp->nlp_state; 2351 } 2352 2353 static uint32_t 2354 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2355 void *arg, uint32_t evt) 2356 { 2357 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2358 2359 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2360 spin_lock_irq(shost->host_lock); 2361 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2362 spin_unlock_irq(shost->host_lock); 2363 return ndlp->nlp_state; 2364 } 2365 lpfc_drop_node(vport, ndlp); 2366 return NLP_STE_FREED_NODE; 2367 } 2368 2369 static uint32_t 2370 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2371 void *arg, uint32_t evt) 2372 { 2373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2374 2375 /* Don't do anything that will mess up processing of the 2376 * previous RSCN. 2377 */ 2378 if (vport->fc_flag & FC_RSCN_DEFERRED) 2379 return ndlp->nlp_state; 2380 2381 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2382 spin_lock_irq(shost->host_lock); 2383 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2384 spin_unlock_irq(shost->host_lock); 2385 return ndlp->nlp_state; 2386 } 2387 2388 2389 /* This next section defines the NPort Discovery State Machine */ 2390 2391 /* There are 4 different double linked lists nodelist entries can reside on. 2392 * The plogi list and adisc list are used when Link Up discovery or RSCN 2393 * processing is needed. Each list holds the nodes that we will send PLOGI 2394 * or ADISC on. These lists will keep track of what nodes will be effected 2395 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2396 * The unmapped_list will contain all nodes that we have successfully logged 2397 * into at the Fibre Channel level. The mapped_list will contain all nodes 2398 * that are mapped FCP targets. 2399 */ 2400 /* 2401 * The bind list is a list of undiscovered (potentially non-existent) nodes 2402 * that we have saved binding information on. This information is used when 2403 * nodes transition from the unmapped to the mapped list. 2404 */ 2405 /* For UNUSED_NODE state, the node has just been allocated . 2406 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2407 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2408 * and put on the unmapped list. For ADISC processing, the node is taken off 2409 * the ADISC list and placed on either the mapped or unmapped list (depending 2410 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2411 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2412 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2413 * node, the node is taken off the unmapped list. The binding list is checked 2414 * for a valid binding, or a binding is automatically assigned. If binding 2415 * assignment is unsuccessful, the node is left on the unmapped list. If 2416 * binding assignment is successful, the associated binding list entry (if 2417 * any) is removed, and the node is placed on the mapped list. 2418 */ 2419 /* 2420 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2421 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2422 * expire, all effected nodes will receive a DEVICE_RM event. 2423 */ 2424 /* 2425 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2426 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2427 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2428 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2429 * we will first process the ADISC list. 32 entries are processed initially and 2430 * ADISC is initited for each one. Completions / Events for each node are 2431 * funnelled thru the state machine. As each node finishes ADISC processing, it 2432 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2433 * waiting, and the ADISC list count is identically 0, then we are done. For 2434 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2435 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2436 * list. 32 entries are processed initially and PLOGI is initited for each one. 2437 * Completions / Events for each node are funnelled thru the state machine. As 2438 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2439 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2440 * indentically 0, then we are done. We have now completed discovery / RSCN 2441 * handling. Upon completion, ALL nodes should be on either the mapped or 2442 * unmapped lists. 2443 */ 2444 2445 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2446 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2447 /* Action routine Event Current State */ 2448 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2449 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2450 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2451 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2452 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2453 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2454 lpfc_disc_illegal, /* CMPL_PLOGI */ 2455 lpfc_disc_illegal, /* CMPL_PRLI */ 2456 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2457 lpfc_disc_illegal, /* CMPL_ADISC */ 2458 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2459 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2460 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2461 2462 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2463 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2464 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2465 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2466 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2467 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2468 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2469 lpfc_disc_illegal, /* CMPL_PRLI */ 2470 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2471 lpfc_disc_illegal, /* CMPL_ADISC */ 2472 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2473 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2474 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2475 2476 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2477 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2478 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2479 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2480 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2481 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2482 lpfc_disc_illegal, /* CMPL_PLOGI */ 2483 lpfc_disc_illegal, /* CMPL_PRLI */ 2484 lpfc_disc_illegal, /* CMPL_LOGO */ 2485 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2486 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2487 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2488 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2489 2490 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2491 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2492 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2493 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2494 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2495 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2496 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2497 lpfc_disc_illegal, /* CMPL_PRLI */ 2498 lpfc_disc_illegal, /* CMPL_LOGO */ 2499 lpfc_disc_illegal, /* CMPL_ADISC */ 2500 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2501 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2502 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2503 2504 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2505 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2506 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2507 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2508 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2509 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2510 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2511 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2512 lpfc_disc_illegal, /* CMPL_LOGO */ 2513 lpfc_disc_illegal, /* CMPL_ADISC */ 2514 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2515 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2516 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2517 2518 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2519 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2520 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2521 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2522 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2523 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2524 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2525 lpfc_disc_illegal, /* CMPL_PRLI */ 2526 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2527 lpfc_disc_illegal, /* CMPL_ADISC */ 2528 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2529 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2530 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2531 2532 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2533 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2534 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2535 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2536 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2537 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2538 lpfc_disc_illegal, /* CMPL_PLOGI */ 2539 lpfc_disc_illegal, /* CMPL_PRLI */ 2540 lpfc_disc_illegal, /* CMPL_LOGO */ 2541 lpfc_disc_illegal, /* CMPL_ADISC */ 2542 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2543 lpfc_disc_illegal, /* DEVICE_RM */ 2544 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2545 2546 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2547 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2548 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2549 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2550 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2551 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2552 lpfc_disc_illegal, /* CMPL_PLOGI */ 2553 lpfc_disc_illegal, /* CMPL_PRLI */ 2554 lpfc_disc_illegal, /* CMPL_LOGO */ 2555 lpfc_disc_illegal, /* CMPL_ADISC */ 2556 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2557 lpfc_disc_illegal, /* DEVICE_RM */ 2558 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2559 2560 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2561 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2562 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2563 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2564 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2565 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2566 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2567 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2568 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2569 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2570 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2571 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2572 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2573 }; 2574 2575 int 2576 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2577 void *arg, uint32_t evt) 2578 { 2579 uint32_t cur_state, rc; 2580 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2581 uint32_t); 2582 uint32_t got_ndlp = 0; 2583 2584 if (lpfc_nlp_get(ndlp)) 2585 got_ndlp = 1; 2586 2587 cur_state = ndlp->nlp_state; 2588 2589 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2590 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2591 "0211 DSM in event x%x on NPort x%x in " 2592 "state %d Data: x%x\n", 2593 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2594 2595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2596 "DSM in: evt:%d ste:%d did:x%x", 2597 evt, cur_state, ndlp->nlp_DID); 2598 2599 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2600 rc = (func) (vport, ndlp, arg, evt); 2601 2602 /* DSM out state <rc> on NPort <nlp_DID> */ 2603 if (got_ndlp) { 2604 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2605 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2606 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2607 2608 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2609 "DSM out: ste:%d did:x%x flg:x%x", 2610 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2611 /* Decrement the ndlp reference count held for this function */ 2612 lpfc_nlp_put(ndlp); 2613 } else { 2614 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2615 "0213 DSM out state %d on NPort free\n", rc); 2616 2617 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2618 "DSM out: ste:%d did:x%x flg:x%x", 2619 rc, 0, 0); 2620 } 2621 2622 return rc; 2623 } 2624