1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 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 LPFC_MBOXQ_t *mbox; 284 struct ls_rjt stat; 285 int rc; 286 287 memset(&stat, 0, sizeof (struct ls_rjt)); 288 if (vport->port_state <= LPFC_FDISC) { 289 /* Before responding to PLOGI, check for pt2pt mode. 290 * If we are pt2pt, with an outstanding FLOGI, abort 291 * the FLOGI and resend it first. 292 */ 293 if (vport->fc_flag & FC_PT2PT) { 294 lpfc_els_abort_flogi(phba); 295 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { 296 /* If the other side is supposed to initiate 297 * the PLOGI anyway, just ACC it now and 298 * move on with discovery. 299 */ 300 phba->fc_edtov = FF_DEF_EDTOV; 301 phba->fc_ratov = FF_DEF_RATOV; 302 /* Start discovery - this should just do 303 CLEAR_LA */ 304 lpfc_disc_start(vport); 305 } else 306 lpfc_initial_flogi(vport); 307 } else { 308 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 309 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 311 ndlp, NULL); 312 return 0; 313 } 314 } 315 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 316 lp = (uint32_t *) pcmd->virt; 317 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 318 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 319 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 320 "0140 PLOGI Reject: invalid nname\n"); 321 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 322 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 323 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 324 NULL); 325 return 0; 326 } 327 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 328 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 329 "0141 PLOGI Reject: invalid pname\n"); 330 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 331 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 332 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 333 NULL); 334 return 0; 335 } 336 337 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 338 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 339 /* Reject this request because invalid parameters */ 340 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 341 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 342 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 343 NULL); 344 return 0; 345 } 346 icmd = &cmdiocb->iocb; 347 348 /* PLOGI chkparm OK */ 349 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 350 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 351 "x%x x%x x%x\n", 352 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 353 ndlp->nlp_rpi, vport->port_state, 354 vport->fc_flag); 355 356 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 357 ndlp->nlp_fcp_info |= CLASS2; 358 else 359 ndlp->nlp_fcp_info |= CLASS3; 360 361 ndlp->nlp_class_sup = 0; 362 if (sp->cls1.classValid) 363 ndlp->nlp_class_sup |= FC_COS_CLASS1; 364 if (sp->cls2.classValid) 365 ndlp->nlp_class_sup |= FC_COS_CLASS2; 366 if (sp->cls3.classValid) 367 ndlp->nlp_class_sup |= FC_COS_CLASS3; 368 if (sp->cls4.classValid) 369 ndlp->nlp_class_sup |= FC_COS_CLASS4; 370 ndlp->nlp_maxframe = 371 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 372 373 /* if already logged in, do implicit logout */ 374 switch (ndlp->nlp_state) { 375 case NLP_STE_NPR_NODE: 376 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 377 break; 378 case NLP_STE_REG_LOGIN_ISSUE: 379 case NLP_STE_PRLI_ISSUE: 380 case NLP_STE_UNMAPPED_NODE: 381 case NLP_STE_MAPPED_NODE: 382 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */ 383 if (!(ndlp->nlp_type & NLP_FABRIC)) { 384 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 385 ndlp, NULL); 386 return 1; 387 } 388 if (nlp_portwwn != 0 && 389 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 390 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 391 "0143 PLOGI recv'd from DID: x%x " 392 "WWPN changed: old %llx new %llx\n", 393 ndlp->nlp_DID, 394 (unsigned long long)nlp_portwwn, 395 (unsigned long long) 396 wwn_to_u64(sp->portName.u.wwn)); 397 398 ndlp->nlp_prev_state = ndlp->nlp_state; 399 /* rport needs to be unregistered first */ 400 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 401 break; 402 } 403 404 /* Check for Nport to NPort pt2pt protocol */ 405 if ((vport->fc_flag & FC_PT2PT) && 406 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 407 408 /* rcv'ed PLOGI decides what our NPortId will be */ 409 vport->fc_myDID = icmd->un.rcvels.parmRo; 410 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 411 if (mbox == NULL) 412 goto out; 413 lpfc_config_link(phba, mbox); 414 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 415 mbox->vport = vport; 416 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 417 if (rc == MBX_NOT_FINISHED) { 418 mempool_free(mbox, phba->mbox_mem_pool); 419 goto out; 420 } 421 /* 422 * For SLI4, the VFI/VPI are registered AFTER the 423 * Nport with the higher WWPN sends us a PLOGI with 424 * our assigned NPortId. 425 */ 426 if (phba->sli_rev == LPFC_SLI_REV4) 427 lpfc_issue_reg_vfi(vport); 428 429 lpfc_can_disctmo(vport); 430 } 431 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 432 if (!mbox) 433 goto out; 434 435 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 436 if (phba->sli_rev == LPFC_SLI_REV4) 437 lpfc_unreg_rpi(vport, ndlp); 438 439 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 440 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 441 if (rc) { 442 mempool_free(mbox, phba->mbox_mem_pool); 443 goto out; 444 } 445 446 /* ACC PLOGI rsp command needs to execute first, 447 * queue this mbox command to be processed later. 448 */ 449 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 450 /* 451 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox 452 * command issued in lpfc_cmpl_els_acc(). 453 */ 454 mbox->vport = vport; 455 spin_lock_irq(shost->host_lock); 456 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 457 spin_unlock_irq(shost->host_lock); 458 459 /* 460 * If there is an outstanding PLOGI issued, abort it before 461 * sending ACC rsp for received PLOGI. If pending plogi 462 * is not canceled here, the plogi will be rejected by 463 * remote port and will be retried. On a configuration with 464 * single discovery thread, this will cause a huge delay in 465 * discovery. Also this will cause multiple state machines 466 * running in parallel for this node. 467 */ 468 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 469 /* software abort outstanding PLOGI */ 470 lpfc_els_abort(phba, ndlp); 471 } 472 473 if ((vport->port_type == LPFC_NPIV_PORT && 474 vport->cfg_restrict_login)) { 475 476 /* In order to preserve RPIs, we want to cleanup 477 * the default RPI the firmware created to rcv 478 * this ELS request. The only way to do this is 479 * to register, then unregister the RPI. 480 */ 481 spin_lock_irq(shost->host_lock); 482 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 483 spin_unlock_irq(shost->host_lock); 484 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 485 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 486 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 487 ndlp, mbox); 488 if (rc) 489 mempool_free(mbox, phba->mbox_mem_pool); 490 return 1; 491 } 492 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 493 if (rc) 494 mempool_free(mbox, phba->mbox_mem_pool); 495 return 1; 496 out: 497 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 498 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 499 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 500 return 0; 501 } 502 503 /** 504 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 505 * @phba: pointer to lpfc hba data structure. 506 * @mboxq: pointer to mailbox object 507 * 508 * This routine is invoked to issue a completion to a rcv'ed 509 * ADISC or PDISC after the paused RPI has been resumed. 510 **/ 511 static void 512 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 513 { 514 struct lpfc_vport *vport; 515 struct lpfc_iocbq *elsiocb; 516 struct lpfc_nodelist *ndlp; 517 uint32_t cmd; 518 519 elsiocb = (struct lpfc_iocbq *)mboxq->context1; 520 ndlp = (struct lpfc_nodelist *) mboxq->context2; 521 vport = mboxq->vport; 522 cmd = elsiocb->drvrTimeout; 523 524 if (cmd == ELS_CMD_ADISC) { 525 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 526 } else { 527 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 528 ndlp, NULL); 529 } 530 kfree(elsiocb); 531 mempool_free(mboxq, phba->mbox_mem_pool); 532 } 533 534 static int 535 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 536 struct lpfc_iocbq *cmdiocb) 537 { 538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 539 struct lpfc_iocbq *elsiocb; 540 struct lpfc_dmabuf *pcmd; 541 struct serv_parm *sp; 542 struct lpfc_name *pnn, *ppn; 543 struct ls_rjt stat; 544 ADISC *ap; 545 IOCB_t *icmd; 546 uint32_t *lp; 547 uint32_t cmd; 548 549 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 550 lp = (uint32_t *) pcmd->virt; 551 552 cmd = *lp++; 553 if (cmd == ELS_CMD_ADISC) { 554 ap = (ADISC *) lp; 555 pnn = (struct lpfc_name *) & ap->nodeName; 556 ppn = (struct lpfc_name *) & ap->portName; 557 } else { 558 sp = (struct serv_parm *) lp; 559 pnn = (struct lpfc_name *) & sp->nodeName; 560 ppn = (struct lpfc_name *) & sp->portName; 561 } 562 563 icmd = &cmdiocb->iocb; 564 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 565 566 /* 567 * As soon as we send ACC, the remote NPort can 568 * start sending us data. Thus, for SLI4 we must 569 * resume the RPI before the ACC goes out. 570 */ 571 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 572 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 573 GFP_KERNEL); 574 if (elsiocb) { 575 576 /* Save info from cmd IOCB used in rsp */ 577 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 578 sizeof(struct lpfc_iocbq)); 579 580 /* Save the ELS cmd */ 581 elsiocb->drvrTimeout = cmd; 582 583 lpfc_sli4_resume_rpi(ndlp, 584 lpfc_mbx_cmpl_resume_rpi, elsiocb); 585 goto out; 586 } 587 } 588 589 if (cmd == ELS_CMD_ADISC) { 590 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 591 } else { 592 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 593 ndlp, NULL); 594 } 595 out: 596 /* If we are authenticated, move to the proper state */ 597 if (ndlp->nlp_type & NLP_FCP_TARGET) 598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 599 else 600 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 601 602 return 1; 603 } 604 /* Reject this request because invalid parameters */ 605 stat.un.b.lsRjtRsvd0 = 0; 606 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 607 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 608 stat.un.b.vendorUnique = 0; 609 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 610 611 /* 1 sec timeout */ 612 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 613 614 spin_lock_irq(shost->host_lock); 615 ndlp->nlp_flag |= NLP_DELAY_TMO; 616 spin_unlock_irq(shost->host_lock); 617 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 618 ndlp->nlp_prev_state = ndlp->nlp_state; 619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 620 return 0; 621 } 622 623 static int 624 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 625 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 626 { 627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 628 struct lpfc_hba *phba = vport->phba; 629 struct lpfc_vport **vports; 630 int i, active_vlink_present = 0 ; 631 632 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 633 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 634 * PLOGIs during LOGO storms from a device. 635 */ 636 spin_lock_irq(shost->host_lock); 637 ndlp->nlp_flag |= NLP_LOGO_ACC; 638 spin_unlock_irq(shost->host_lock); 639 if (els_cmd == ELS_CMD_PRLO) 640 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 641 else 642 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 643 if (ndlp->nlp_DID == Fabric_DID) { 644 if (vport->port_state <= LPFC_FDISC) 645 goto out; 646 lpfc_linkdown_port(vport); 647 spin_lock_irq(shost->host_lock); 648 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 649 spin_unlock_irq(shost->host_lock); 650 vports = lpfc_create_vport_work_array(phba); 651 if (vports) { 652 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 653 i++) { 654 if ((!(vports[i]->fc_flag & 655 FC_VPORT_LOGO_RCVD)) && 656 (vports[i]->port_state > LPFC_FDISC)) { 657 active_vlink_present = 1; 658 break; 659 } 660 } 661 lpfc_destroy_vport_work_array(phba, vports); 662 } 663 664 /* 665 * Don't re-instantiate if vport is marked for deletion. 666 * If we are here first then vport_delete is going to wait 667 * for discovery to complete. 668 */ 669 if (!(vport->load_flag & FC_UNLOADING) && 670 active_vlink_present) { 671 /* 672 * If there are other active VLinks present, 673 * re-instantiate the Vlink using FDISC. 674 */ 675 mod_timer(&ndlp->nlp_delayfunc, 676 jiffies + msecs_to_jiffies(1000)); 677 spin_lock_irq(shost->host_lock); 678 ndlp->nlp_flag |= NLP_DELAY_TMO; 679 spin_unlock_irq(shost->host_lock); 680 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 681 vport->port_state = LPFC_FDISC; 682 } else { 683 spin_lock_irq(shost->host_lock); 684 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 685 spin_unlock_irq(shost->host_lock); 686 lpfc_retry_pport_discovery(phba); 687 } 688 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 689 ((ndlp->nlp_type & NLP_FCP_TARGET) || 690 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 691 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 692 /* Only try to re-login if this is NOT a Fabric Node */ 693 mod_timer(&ndlp->nlp_delayfunc, 694 jiffies + msecs_to_jiffies(1000 * 1)); 695 spin_lock_irq(shost->host_lock); 696 ndlp->nlp_flag |= NLP_DELAY_TMO; 697 spin_unlock_irq(shost->host_lock); 698 699 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 700 } 701 out: 702 ndlp->nlp_prev_state = ndlp->nlp_state; 703 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 704 705 spin_lock_irq(shost->host_lock); 706 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 707 spin_unlock_irq(shost->host_lock); 708 /* The driver has to wait until the ACC completes before it continues 709 * processing the LOGO. The action will resume in 710 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 711 * unreg_login, the driver waits so the ACC does not get aborted. 712 */ 713 return 0; 714 } 715 716 static void 717 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 718 struct lpfc_iocbq *cmdiocb) 719 { 720 struct lpfc_dmabuf *pcmd; 721 uint32_t *lp; 722 PRLI *npr; 723 struct fc_rport *rport = ndlp->rport; 724 u32 roles; 725 726 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 727 lp = (uint32_t *) pcmd->virt; 728 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 729 730 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 731 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 732 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 733 if (npr->prliType == PRLI_FCP_TYPE) { 734 if (npr->initiatorFunc) 735 ndlp->nlp_type |= NLP_FCP_INITIATOR; 736 if (npr->targetFunc) { 737 ndlp->nlp_type |= NLP_FCP_TARGET; 738 if (npr->writeXferRdyDis) 739 ndlp->nlp_flag |= NLP_FIRSTBURST; 740 } 741 if (npr->Retry) 742 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 743 } 744 if (rport) { 745 /* We need to update the rport role values */ 746 roles = FC_RPORT_ROLE_UNKNOWN; 747 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 748 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 749 if (ndlp->nlp_type & NLP_FCP_TARGET) 750 roles |= FC_RPORT_ROLE_FCP_TARGET; 751 752 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 753 "rport rolechg: role:x%x did:x%x flg:x%x", 754 roles, ndlp->nlp_DID, ndlp->nlp_flag); 755 756 fc_remote_port_rolechg(rport, roles); 757 } 758 } 759 760 static uint32_t 761 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 762 { 763 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 764 765 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 766 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 767 return 0; 768 } 769 770 if (!(vport->fc_flag & FC_PT2PT)) { 771 /* Check config parameter use-adisc or FCP-2 */ 772 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 773 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 774 (ndlp->nlp_type & NLP_FCP_TARGET))) { 775 spin_lock_irq(shost->host_lock); 776 ndlp->nlp_flag |= NLP_NPR_ADISC; 777 spin_unlock_irq(shost->host_lock); 778 return 1; 779 } 780 } 781 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 782 lpfc_unreg_rpi(vport, ndlp); 783 return 0; 784 } 785 786 /** 787 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 788 * @phba : Pointer to lpfc_hba structure. 789 * @vport: Pointer to lpfc_vport structure. 790 * @rpi : rpi to be release. 791 * 792 * This function will send a unreg_login mailbox command to the firmware 793 * to release a rpi. 794 **/ 795 void 796 lpfc_release_rpi(struct lpfc_hba *phba, 797 struct lpfc_vport *vport, 798 uint16_t rpi) 799 { 800 LPFC_MBOXQ_t *pmb; 801 int rc; 802 803 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 804 GFP_KERNEL); 805 if (!pmb) 806 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 807 "2796 mailbox memory allocation failed \n"); 808 else { 809 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 810 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 811 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 812 if (rc == MBX_NOT_FINISHED) 813 mempool_free(pmb, phba->mbox_mem_pool); 814 } 815 } 816 817 static uint32_t 818 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 819 void *arg, uint32_t evt) 820 { 821 struct lpfc_hba *phba; 822 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 823 uint16_t rpi; 824 825 phba = vport->phba; 826 /* Release the RPI if reglogin completing */ 827 if (!(phba->pport->load_flag & FC_UNLOADING) && 828 (evt == NLP_EVT_CMPL_REG_LOGIN) && 829 (!pmb->u.mb.mbxStatus)) { 830 rpi = pmb->u.mb.un.varWords[0]; 831 lpfc_release_rpi(phba, vport, rpi); 832 } 833 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 834 "0271 Illegal State Transition: node x%x " 835 "event x%x, state x%x Data: x%x x%x\n", 836 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 837 ndlp->nlp_flag); 838 return ndlp->nlp_state; 839 } 840 841 static uint32_t 842 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 843 void *arg, uint32_t evt) 844 { 845 /* This transition is only legal if we previously 846 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 847 * working on the same NPortID, do nothing for this thread 848 * to stop it. 849 */ 850 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 851 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 852 "0272 Illegal State Transition: node x%x " 853 "event x%x, state x%x Data: x%x x%x\n", 854 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 855 ndlp->nlp_flag); 856 } 857 return ndlp->nlp_state; 858 } 859 860 /* Start of Discovery State Machine routines */ 861 862 static uint32_t 863 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 864 void *arg, uint32_t evt) 865 { 866 struct lpfc_iocbq *cmdiocb; 867 868 cmdiocb = (struct lpfc_iocbq *) arg; 869 870 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 871 return ndlp->nlp_state; 872 } 873 return NLP_STE_FREED_NODE; 874 } 875 876 static uint32_t 877 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 878 void *arg, uint32_t evt) 879 { 880 lpfc_issue_els_logo(vport, ndlp, 0); 881 return ndlp->nlp_state; 882 } 883 884 static uint32_t 885 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 886 void *arg, uint32_t evt) 887 { 888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 889 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 890 891 spin_lock_irq(shost->host_lock); 892 ndlp->nlp_flag |= NLP_LOGO_ACC; 893 spin_unlock_irq(shost->host_lock); 894 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 895 896 return ndlp->nlp_state; 897 } 898 899 static uint32_t 900 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 901 void *arg, uint32_t evt) 902 { 903 return NLP_STE_FREED_NODE; 904 } 905 906 static uint32_t 907 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 908 void *arg, uint32_t evt) 909 { 910 return NLP_STE_FREED_NODE; 911 } 912 913 static uint32_t 914 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 915 struct lpfc_nodelist *ndlp, 916 void *arg, uint32_t evt) 917 { 918 return ndlp->nlp_state; 919 } 920 921 static uint32_t 922 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 923 void *arg, uint32_t evt) 924 { 925 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 926 struct lpfc_hba *phba = vport->phba; 927 struct lpfc_iocbq *cmdiocb = arg; 928 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 929 uint32_t *lp = (uint32_t *) pcmd->virt; 930 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 931 struct ls_rjt stat; 932 int port_cmp; 933 934 memset(&stat, 0, sizeof (struct ls_rjt)); 935 936 /* For a PLOGI, we only accept if our portname is less 937 * than the remote portname. 938 */ 939 phba->fc_stat.elsLogiCol++; 940 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 941 sizeof(struct lpfc_name)); 942 943 if (port_cmp >= 0) { 944 /* Reject this request because the remote node will accept 945 ours */ 946 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 947 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 948 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 949 NULL); 950 } else { 951 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 952 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 953 (vport->num_disc_nodes)) { 954 spin_lock_irq(shost->host_lock); 955 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 956 spin_unlock_irq(shost->host_lock); 957 /* Check if there are more PLOGIs to be sent */ 958 lpfc_more_plogi(vport); 959 if (vport->num_disc_nodes == 0) { 960 spin_lock_irq(shost->host_lock); 961 vport->fc_flag &= ~FC_NDISC_ACTIVE; 962 spin_unlock_irq(shost->host_lock); 963 lpfc_can_disctmo(vport); 964 lpfc_end_rscn(vport); 965 } 966 } 967 } /* If our portname was less */ 968 969 return ndlp->nlp_state; 970 } 971 972 static uint32_t 973 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 974 void *arg, uint32_t evt) 975 { 976 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 977 struct ls_rjt stat; 978 979 memset(&stat, 0, sizeof (struct ls_rjt)); 980 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 981 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 982 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 983 return ndlp->nlp_state; 984 } 985 986 static uint32_t 987 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 988 void *arg, uint32_t evt) 989 { 990 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 991 992 /* software abort outstanding PLOGI */ 993 lpfc_els_abort(vport->phba, ndlp); 994 995 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 996 return ndlp->nlp_state; 997 } 998 999 static uint32_t 1000 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1001 void *arg, uint32_t evt) 1002 { 1003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1004 struct lpfc_hba *phba = vport->phba; 1005 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1006 1007 /* software abort outstanding PLOGI */ 1008 lpfc_els_abort(phba, ndlp); 1009 1010 if (evt == NLP_EVT_RCV_LOGO) { 1011 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1012 } else { 1013 lpfc_issue_els_logo(vport, ndlp, 0); 1014 } 1015 1016 /* Put ndlp in npr state set plogi timer for 1 sec */ 1017 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1018 spin_lock_irq(shost->host_lock); 1019 ndlp->nlp_flag |= NLP_DELAY_TMO; 1020 spin_unlock_irq(shost->host_lock); 1021 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1022 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1023 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1024 1025 return ndlp->nlp_state; 1026 } 1027 1028 static uint32_t 1029 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1030 struct lpfc_nodelist *ndlp, 1031 void *arg, 1032 uint32_t evt) 1033 { 1034 struct lpfc_hba *phba = vport->phba; 1035 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1036 struct lpfc_iocbq *cmdiocb, *rspiocb; 1037 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1038 uint32_t *lp; 1039 IOCB_t *irsp; 1040 struct serv_parm *sp; 1041 LPFC_MBOXQ_t *mbox; 1042 1043 cmdiocb = (struct lpfc_iocbq *) arg; 1044 rspiocb = cmdiocb->context_un.rsp_iocb; 1045 1046 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1047 /* Recovery from PLOGI collision logic */ 1048 return ndlp->nlp_state; 1049 } 1050 1051 irsp = &rspiocb->iocb; 1052 1053 if (irsp->ulpStatus) 1054 goto out; 1055 1056 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1057 1058 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1059 if (!prsp) 1060 goto out; 1061 1062 lp = (uint32_t *) prsp->virt; 1063 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1064 1065 /* Some switches have FDMI servers returning 0 for WWN */ 1066 if ((ndlp->nlp_DID != FDMI_DID) && 1067 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1068 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1069 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1070 "0142 PLOGI RSP: Invalid WWN.\n"); 1071 goto out; 1072 } 1073 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1074 goto out; 1075 /* PLOGI chkparm OK */ 1076 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1077 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1078 ndlp->nlp_DID, ndlp->nlp_state, 1079 ndlp->nlp_flag, ndlp->nlp_rpi); 1080 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1081 ndlp->nlp_fcp_info |= CLASS2; 1082 else 1083 ndlp->nlp_fcp_info |= CLASS3; 1084 1085 ndlp->nlp_class_sup = 0; 1086 if (sp->cls1.classValid) 1087 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1088 if (sp->cls2.classValid) 1089 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1090 if (sp->cls3.classValid) 1091 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1092 if (sp->cls4.classValid) 1093 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1094 ndlp->nlp_maxframe = 1095 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1096 1097 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1098 if (!mbox) { 1099 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1100 "0133 PLOGI: no memory for reg_login " 1101 "Data: x%x x%x x%x x%x\n", 1102 ndlp->nlp_DID, ndlp->nlp_state, 1103 ndlp->nlp_flag, ndlp->nlp_rpi); 1104 goto out; 1105 } 1106 1107 lpfc_unreg_rpi(vport, ndlp); 1108 1109 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1110 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1111 switch (ndlp->nlp_DID) { 1112 case NameServer_DID: 1113 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1114 break; 1115 case FDMI_DID: 1116 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1117 break; 1118 default: 1119 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1120 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1121 } 1122 mbox->context2 = lpfc_nlp_get(ndlp); 1123 mbox->vport = vport; 1124 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1125 != MBX_NOT_FINISHED) { 1126 lpfc_nlp_set_state(vport, ndlp, 1127 NLP_STE_REG_LOGIN_ISSUE); 1128 return ndlp->nlp_state; 1129 } 1130 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1131 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1132 /* decrement node reference count to the failed mbox 1133 * command 1134 */ 1135 lpfc_nlp_put(ndlp); 1136 mp = (struct lpfc_dmabuf *) mbox->context1; 1137 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1138 kfree(mp); 1139 mempool_free(mbox, phba->mbox_mem_pool); 1140 1141 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1142 "0134 PLOGI: cannot issue reg_login " 1143 "Data: x%x x%x x%x x%x\n", 1144 ndlp->nlp_DID, ndlp->nlp_state, 1145 ndlp->nlp_flag, ndlp->nlp_rpi); 1146 } else { 1147 mempool_free(mbox, phba->mbox_mem_pool); 1148 1149 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1150 "0135 PLOGI: cannot format reg_login " 1151 "Data: x%x x%x x%x x%x\n", 1152 ndlp->nlp_DID, ndlp->nlp_state, 1153 ndlp->nlp_flag, ndlp->nlp_rpi); 1154 } 1155 1156 1157 out: 1158 if (ndlp->nlp_DID == NameServer_DID) { 1159 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1160 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1161 "0261 Cannot Register NameServer login\n"); 1162 } 1163 1164 /* 1165 ** In case the node reference counter does not go to zero, ensure that 1166 ** the stale state for the node is not processed. 1167 */ 1168 1169 ndlp->nlp_prev_state = ndlp->nlp_state; 1170 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1171 spin_lock_irq(shost->host_lock); 1172 ndlp->nlp_flag |= NLP_DEFER_RM; 1173 spin_unlock_irq(shost->host_lock); 1174 return NLP_STE_FREED_NODE; 1175 } 1176 1177 static uint32_t 1178 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1179 void *arg, uint32_t evt) 1180 { 1181 return ndlp->nlp_state; 1182 } 1183 1184 static uint32_t 1185 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1186 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1187 { 1188 struct lpfc_hba *phba; 1189 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1190 MAILBOX_t *mb = &pmb->u.mb; 1191 uint16_t rpi; 1192 1193 phba = vport->phba; 1194 /* Release the RPI */ 1195 if (!(phba->pport->load_flag & FC_UNLOADING) && 1196 !mb->mbxStatus) { 1197 rpi = pmb->u.mb.un.varWords[0]; 1198 lpfc_release_rpi(phba, vport, rpi); 1199 } 1200 return ndlp->nlp_state; 1201 } 1202 1203 static uint32_t 1204 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1205 void *arg, uint32_t evt) 1206 { 1207 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1208 1209 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1210 spin_lock_irq(shost->host_lock); 1211 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1212 spin_unlock_irq(shost->host_lock); 1213 return ndlp->nlp_state; 1214 } else { 1215 /* software abort outstanding PLOGI */ 1216 lpfc_els_abort(vport->phba, ndlp); 1217 1218 lpfc_drop_node(vport, ndlp); 1219 return NLP_STE_FREED_NODE; 1220 } 1221 } 1222 1223 static uint32_t 1224 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1225 struct lpfc_nodelist *ndlp, 1226 void *arg, 1227 uint32_t evt) 1228 { 1229 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1230 struct lpfc_hba *phba = vport->phba; 1231 1232 /* Don't do anything that will mess up processing of the 1233 * previous RSCN. 1234 */ 1235 if (vport->fc_flag & FC_RSCN_DEFERRED) 1236 return ndlp->nlp_state; 1237 1238 /* software abort outstanding PLOGI */ 1239 lpfc_els_abort(phba, ndlp); 1240 1241 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1242 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1243 spin_lock_irq(shost->host_lock); 1244 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1245 spin_unlock_irq(shost->host_lock); 1246 1247 return ndlp->nlp_state; 1248 } 1249 1250 static uint32_t 1251 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1252 void *arg, uint32_t evt) 1253 { 1254 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1255 struct lpfc_hba *phba = vport->phba; 1256 struct lpfc_iocbq *cmdiocb; 1257 1258 /* software abort outstanding ADISC */ 1259 lpfc_els_abort(phba, ndlp); 1260 1261 cmdiocb = (struct lpfc_iocbq *) arg; 1262 1263 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1264 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1265 spin_lock_irq(shost->host_lock); 1266 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1267 spin_unlock_irq(shost->host_lock); 1268 if (vport->num_disc_nodes) 1269 lpfc_more_adisc(vport); 1270 } 1271 return ndlp->nlp_state; 1272 } 1273 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1274 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1275 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1276 1277 return ndlp->nlp_state; 1278 } 1279 1280 static uint32_t 1281 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1282 void *arg, uint32_t evt) 1283 { 1284 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1285 1286 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1287 return ndlp->nlp_state; 1288 } 1289 1290 static uint32_t 1291 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1292 void *arg, uint32_t evt) 1293 { 1294 struct lpfc_hba *phba = vport->phba; 1295 struct lpfc_iocbq *cmdiocb; 1296 1297 cmdiocb = (struct lpfc_iocbq *) arg; 1298 1299 /* software abort outstanding ADISC */ 1300 lpfc_els_abort(phba, ndlp); 1301 1302 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1303 return ndlp->nlp_state; 1304 } 1305 1306 static uint32_t 1307 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1308 struct lpfc_nodelist *ndlp, 1309 void *arg, uint32_t evt) 1310 { 1311 struct lpfc_iocbq *cmdiocb; 1312 1313 cmdiocb = (struct lpfc_iocbq *) arg; 1314 1315 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1316 return ndlp->nlp_state; 1317 } 1318 1319 static uint32_t 1320 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1321 void *arg, uint32_t evt) 1322 { 1323 struct lpfc_iocbq *cmdiocb; 1324 1325 cmdiocb = (struct lpfc_iocbq *) arg; 1326 1327 /* Treat like rcv logo */ 1328 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1329 return ndlp->nlp_state; 1330 } 1331 1332 static uint32_t 1333 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1334 struct lpfc_nodelist *ndlp, 1335 void *arg, uint32_t evt) 1336 { 1337 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1338 struct lpfc_hba *phba = vport->phba; 1339 struct lpfc_iocbq *cmdiocb, *rspiocb; 1340 IOCB_t *irsp; 1341 ADISC *ap; 1342 int rc; 1343 1344 cmdiocb = (struct lpfc_iocbq *) arg; 1345 rspiocb = cmdiocb->context_un.rsp_iocb; 1346 1347 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1348 irsp = &rspiocb->iocb; 1349 1350 if ((irsp->ulpStatus) || 1351 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1352 /* 1 sec timeout */ 1353 mod_timer(&ndlp->nlp_delayfunc, 1354 jiffies + msecs_to_jiffies(1000)); 1355 spin_lock_irq(shost->host_lock); 1356 ndlp->nlp_flag |= NLP_DELAY_TMO; 1357 spin_unlock_irq(shost->host_lock); 1358 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1359 1360 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1361 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1362 1363 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1364 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1365 lpfc_unreg_rpi(vport, ndlp); 1366 return ndlp->nlp_state; 1367 } 1368 1369 if (phba->sli_rev == LPFC_SLI_REV4) { 1370 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1371 if (rc) { 1372 /* Stay in state and retry. */ 1373 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1374 return ndlp->nlp_state; 1375 } 1376 } 1377 1378 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1379 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1380 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1381 } else { 1382 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1383 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1384 } 1385 1386 return ndlp->nlp_state; 1387 } 1388 1389 static uint32_t 1390 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1391 void *arg, uint32_t evt) 1392 { 1393 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1394 1395 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1396 spin_lock_irq(shost->host_lock); 1397 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1398 spin_unlock_irq(shost->host_lock); 1399 return ndlp->nlp_state; 1400 } else { 1401 /* software abort outstanding ADISC */ 1402 lpfc_els_abort(vport->phba, ndlp); 1403 1404 lpfc_drop_node(vport, ndlp); 1405 return NLP_STE_FREED_NODE; 1406 } 1407 } 1408 1409 static uint32_t 1410 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1411 struct lpfc_nodelist *ndlp, 1412 void *arg, 1413 uint32_t evt) 1414 { 1415 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1416 struct lpfc_hba *phba = vport->phba; 1417 1418 /* Don't do anything that will mess up processing of the 1419 * previous RSCN. 1420 */ 1421 if (vport->fc_flag & FC_RSCN_DEFERRED) 1422 return ndlp->nlp_state; 1423 1424 /* software abort outstanding ADISC */ 1425 lpfc_els_abort(phba, ndlp); 1426 1427 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1428 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1429 spin_lock_irq(shost->host_lock); 1430 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1431 spin_unlock_irq(shost->host_lock); 1432 lpfc_disc_set_adisc(vport, ndlp); 1433 return ndlp->nlp_state; 1434 } 1435 1436 static uint32_t 1437 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1438 struct lpfc_nodelist *ndlp, 1439 void *arg, 1440 uint32_t evt) 1441 { 1442 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1443 1444 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1445 return ndlp->nlp_state; 1446 } 1447 1448 static uint32_t 1449 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1450 struct lpfc_nodelist *ndlp, 1451 void *arg, 1452 uint32_t evt) 1453 { 1454 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1455 1456 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1457 return ndlp->nlp_state; 1458 } 1459 1460 static uint32_t 1461 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1462 struct lpfc_nodelist *ndlp, 1463 void *arg, 1464 uint32_t evt) 1465 { 1466 struct lpfc_hba *phba = vport->phba; 1467 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1468 LPFC_MBOXQ_t *mb; 1469 LPFC_MBOXQ_t *nextmb; 1470 struct lpfc_dmabuf *mp; 1471 1472 cmdiocb = (struct lpfc_iocbq *) arg; 1473 1474 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1475 if ((mb = phba->sli.mbox_active)) { 1476 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1477 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1478 lpfc_nlp_put(ndlp); 1479 mb->context2 = NULL; 1480 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1481 } 1482 } 1483 1484 spin_lock_irq(&phba->hbalock); 1485 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1486 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1487 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1488 mp = (struct lpfc_dmabuf *) (mb->context1); 1489 if (mp) { 1490 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1491 kfree(mp); 1492 } 1493 lpfc_nlp_put(ndlp); 1494 list_del(&mb->list); 1495 phba->sli.mboxq_cnt--; 1496 mempool_free(mb, phba->mbox_mem_pool); 1497 } 1498 } 1499 spin_unlock_irq(&phba->hbalock); 1500 1501 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1502 return ndlp->nlp_state; 1503 } 1504 1505 static uint32_t 1506 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1507 struct lpfc_nodelist *ndlp, 1508 void *arg, 1509 uint32_t evt) 1510 { 1511 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1512 1513 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1514 return ndlp->nlp_state; 1515 } 1516 1517 static uint32_t 1518 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1519 struct lpfc_nodelist *ndlp, 1520 void *arg, 1521 uint32_t evt) 1522 { 1523 struct lpfc_iocbq *cmdiocb; 1524 1525 cmdiocb = (struct lpfc_iocbq *) arg; 1526 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1527 return ndlp->nlp_state; 1528 } 1529 1530 static uint32_t 1531 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1532 struct lpfc_nodelist *ndlp, 1533 void *arg, 1534 uint32_t evt) 1535 { 1536 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1537 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1538 MAILBOX_t *mb = &pmb->u.mb; 1539 uint32_t did = mb->un.varWords[1]; 1540 1541 if (mb->mbxStatus) { 1542 /* RegLogin failed */ 1543 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1544 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1545 "x%x\n", 1546 did, mb->mbxStatus, vport->port_state, 1547 mb->un.varRegLogin.vpi, 1548 mb->un.varRegLogin.rpi); 1549 /* 1550 * If RegLogin failed due to lack of HBA resources do not 1551 * retry discovery. 1552 */ 1553 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1554 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1555 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1556 return ndlp->nlp_state; 1557 } 1558 1559 /* Put ndlp in npr state set plogi timer for 1 sec */ 1560 mod_timer(&ndlp->nlp_delayfunc, 1561 jiffies + msecs_to_jiffies(1000 * 1)); 1562 spin_lock_irq(shost->host_lock); 1563 ndlp->nlp_flag |= NLP_DELAY_TMO; 1564 spin_unlock_irq(shost->host_lock); 1565 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1566 1567 lpfc_issue_els_logo(vport, ndlp, 0); 1568 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1569 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1570 return ndlp->nlp_state; 1571 } 1572 1573 /* SLI4 ports have preallocated logical rpis. */ 1574 if (vport->phba->sli_rev < LPFC_SLI_REV4) 1575 ndlp->nlp_rpi = mb->un.varWords[0]; 1576 1577 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1578 1579 /* Only if we are not a fabric nport do we issue PRLI */ 1580 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1581 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1582 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1583 lpfc_issue_els_prli(vport, ndlp, 0); 1584 } else { 1585 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1586 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1587 } 1588 return ndlp->nlp_state; 1589 } 1590 1591 static uint32_t 1592 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1593 struct lpfc_nodelist *ndlp, 1594 void *arg, 1595 uint32_t evt) 1596 { 1597 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1598 1599 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1600 spin_lock_irq(shost->host_lock); 1601 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1602 spin_unlock_irq(shost->host_lock); 1603 return ndlp->nlp_state; 1604 } else { 1605 lpfc_drop_node(vport, ndlp); 1606 return NLP_STE_FREED_NODE; 1607 } 1608 } 1609 1610 static uint32_t 1611 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1612 struct lpfc_nodelist *ndlp, 1613 void *arg, 1614 uint32_t evt) 1615 { 1616 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1617 1618 /* Don't do anything that will mess up processing of the 1619 * previous RSCN. 1620 */ 1621 if (vport->fc_flag & FC_RSCN_DEFERRED) 1622 return ndlp->nlp_state; 1623 1624 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1625 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1626 spin_lock_irq(shost->host_lock); 1627 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1628 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1629 spin_unlock_irq(shost->host_lock); 1630 lpfc_disc_set_adisc(vport, ndlp); 1631 return ndlp->nlp_state; 1632 } 1633 1634 static uint32_t 1635 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1636 void *arg, uint32_t evt) 1637 { 1638 struct lpfc_iocbq *cmdiocb; 1639 1640 cmdiocb = (struct lpfc_iocbq *) arg; 1641 1642 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1643 return ndlp->nlp_state; 1644 } 1645 1646 static uint32_t 1647 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1648 void *arg, uint32_t evt) 1649 { 1650 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1651 1652 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1653 return ndlp->nlp_state; 1654 } 1655 1656 static uint32_t 1657 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1658 void *arg, uint32_t evt) 1659 { 1660 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1661 1662 /* Software abort outstanding PRLI before sending acc */ 1663 lpfc_els_abort(vport->phba, ndlp); 1664 1665 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1666 return ndlp->nlp_state; 1667 } 1668 1669 static uint32_t 1670 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1671 void *arg, uint32_t evt) 1672 { 1673 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1674 1675 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1676 return ndlp->nlp_state; 1677 } 1678 1679 /* This routine is envoked when we rcv a PRLO request from a nport 1680 * we are logged into. We should send back a PRLO rsp setting the 1681 * appropriate bits. 1682 * NEXT STATE = PRLI_ISSUE 1683 */ 1684 static uint32_t 1685 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1686 void *arg, uint32_t evt) 1687 { 1688 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1689 1690 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1691 return ndlp->nlp_state; 1692 } 1693 1694 static uint32_t 1695 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1696 void *arg, uint32_t evt) 1697 { 1698 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1699 struct lpfc_iocbq *cmdiocb, *rspiocb; 1700 struct lpfc_hba *phba = vport->phba; 1701 IOCB_t *irsp; 1702 PRLI *npr; 1703 1704 cmdiocb = (struct lpfc_iocbq *) arg; 1705 rspiocb = cmdiocb->context_un.rsp_iocb; 1706 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1707 1708 irsp = &rspiocb->iocb; 1709 if (irsp->ulpStatus) { 1710 if ((vport->port_type == LPFC_NPIV_PORT) && 1711 vport->cfg_restrict_login) { 1712 goto out; 1713 } 1714 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1715 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1716 return ndlp->nlp_state; 1717 } 1718 1719 /* Check out PRLI rsp */ 1720 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1721 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1722 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 1723 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1724 (npr->prliType == PRLI_FCP_TYPE)) { 1725 if (npr->initiatorFunc) 1726 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1727 if (npr->targetFunc) { 1728 ndlp->nlp_type |= NLP_FCP_TARGET; 1729 if (npr->writeXferRdyDis) 1730 ndlp->nlp_flag |= NLP_FIRSTBURST; 1731 } 1732 if (npr->Retry) 1733 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1734 } 1735 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1736 (vport->port_type == LPFC_NPIV_PORT) && 1737 vport->cfg_restrict_login) { 1738 out: 1739 spin_lock_irq(shost->host_lock); 1740 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1741 spin_unlock_irq(shost->host_lock); 1742 lpfc_issue_els_logo(vport, ndlp, 0); 1743 1744 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1745 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1746 return ndlp->nlp_state; 1747 } 1748 1749 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1750 if (ndlp->nlp_type & NLP_FCP_TARGET) 1751 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1752 else 1753 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1754 return ndlp->nlp_state; 1755 } 1756 1757 /*! lpfc_device_rm_prli_issue 1758 * 1759 * \pre 1760 * \post 1761 * \param phba 1762 * \param ndlp 1763 * \param arg 1764 * \param evt 1765 * \return uint32_t 1766 * 1767 * \b Description: 1768 * This routine is envoked when we a request to remove a nport we are in the 1769 * process of PRLIing. We should software abort outstanding prli, unreg 1770 * login, send a logout. We will change node state to UNUSED_NODE, put it 1771 * on plogi list so it can be freed when LOGO completes. 1772 * 1773 */ 1774 1775 static uint32_t 1776 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1777 void *arg, uint32_t evt) 1778 { 1779 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1780 1781 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1782 spin_lock_irq(shost->host_lock); 1783 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1784 spin_unlock_irq(shost->host_lock); 1785 return ndlp->nlp_state; 1786 } else { 1787 /* software abort outstanding PLOGI */ 1788 lpfc_els_abort(vport->phba, ndlp); 1789 1790 lpfc_drop_node(vport, ndlp); 1791 return NLP_STE_FREED_NODE; 1792 } 1793 } 1794 1795 1796 /*! lpfc_device_recov_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 * The routine is envoked when the state of a device is unknown, like 1808 * during a link down. We should remove the nodelist entry from the 1809 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1810 * outstanding PRLI command, then free the node entry. 1811 */ 1812 static uint32_t 1813 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1814 struct lpfc_nodelist *ndlp, 1815 void *arg, 1816 uint32_t evt) 1817 { 1818 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1819 struct lpfc_hba *phba = vport->phba; 1820 1821 /* Don't do anything that will mess up processing of the 1822 * previous RSCN. 1823 */ 1824 if (vport->fc_flag & FC_RSCN_DEFERRED) 1825 return ndlp->nlp_state; 1826 1827 /* software abort outstanding PRLI */ 1828 lpfc_els_abort(phba, ndlp); 1829 1830 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1831 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1832 spin_lock_irq(shost->host_lock); 1833 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1834 spin_unlock_irq(shost->host_lock); 1835 lpfc_disc_set_adisc(vport, ndlp); 1836 return ndlp->nlp_state; 1837 } 1838 1839 static uint32_t 1840 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1841 void *arg, uint32_t evt) 1842 { 1843 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1844 struct ls_rjt stat; 1845 1846 memset(&stat, 0, sizeof(struct ls_rjt)); 1847 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1848 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1849 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1850 return ndlp->nlp_state; 1851 } 1852 1853 static uint32_t 1854 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1855 void *arg, uint32_t evt) 1856 { 1857 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1858 struct ls_rjt stat; 1859 1860 memset(&stat, 0, sizeof(struct ls_rjt)); 1861 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1862 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1863 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1864 return ndlp->nlp_state; 1865 } 1866 1867 static uint32_t 1868 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1869 void *arg, uint32_t evt) 1870 { 1871 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1872 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1873 1874 spin_lock_irq(shost->host_lock); 1875 ndlp->nlp_flag |= NLP_LOGO_ACC; 1876 spin_unlock_irq(shost->host_lock); 1877 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1878 return ndlp->nlp_state; 1879 } 1880 1881 static uint32_t 1882 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1883 void *arg, uint32_t evt) 1884 { 1885 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1886 struct ls_rjt stat; 1887 1888 memset(&stat, 0, sizeof(struct ls_rjt)); 1889 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1890 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1891 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1892 return ndlp->nlp_state; 1893 } 1894 1895 static uint32_t 1896 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1897 void *arg, uint32_t evt) 1898 { 1899 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1900 struct ls_rjt stat; 1901 1902 memset(&stat, 0, sizeof(struct ls_rjt)); 1903 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1904 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1905 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1906 return ndlp->nlp_state; 1907 } 1908 1909 static uint32_t 1910 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1911 void *arg, uint32_t evt) 1912 { 1913 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1914 1915 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 1916 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1917 spin_lock_irq(shost->host_lock); 1918 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1919 spin_unlock_irq(shost->host_lock); 1920 lpfc_disc_set_adisc(vport, ndlp); 1921 return ndlp->nlp_state; 1922 } 1923 1924 static uint32_t 1925 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1926 void *arg, uint32_t evt) 1927 { 1928 /* 1929 * Take no action. If a LOGO is outstanding, then possibly DevLoss has 1930 * timed out and is calling for Device Remove. In this case, the LOGO 1931 * must be allowed to complete in state LOGO_ISSUE so that the rpi 1932 * and other NLP flags are correctly cleaned up. 1933 */ 1934 return ndlp->nlp_state; 1935 } 1936 1937 static uint32_t 1938 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 1939 struct lpfc_nodelist *ndlp, 1940 void *arg, uint32_t evt) 1941 { 1942 /* 1943 * Device Recovery events have no meaning for a node with a LOGO 1944 * outstanding. The LOGO has to complete first and handle the 1945 * node from that point. 1946 */ 1947 return ndlp->nlp_state; 1948 } 1949 1950 static uint32_t 1951 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1952 void *arg, uint32_t evt) 1953 { 1954 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1955 1956 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1957 return ndlp->nlp_state; 1958 } 1959 1960 static uint32_t 1961 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1962 void *arg, uint32_t evt) 1963 { 1964 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1965 1966 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1967 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1968 return ndlp->nlp_state; 1969 } 1970 1971 static uint32_t 1972 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1973 void *arg, uint32_t evt) 1974 { 1975 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1976 1977 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1978 return ndlp->nlp_state; 1979 } 1980 1981 static uint32_t 1982 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1983 void *arg, uint32_t evt) 1984 { 1985 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1986 1987 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1988 return ndlp->nlp_state; 1989 } 1990 1991 static uint32_t 1992 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1993 void *arg, uint32_t evt) 1994 { 1995 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1996 1997 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1998 return ndlp->nlp_state; 1999 } 2000 2001 static uint32_t 2002 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2003 struct lpfc_nodelist *ndlp, 2004 void *arg, 2005 uint32_t evt) 2006 { 2007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2008 2009 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2010 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2011 spin_lock_irq(shost->host_lock); 2012 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2013 spin_unlock_irq(shost->host_lock); 2014 lpfc_disc_set_adisc(vport, ndlp); 2015 2016 return ndlp->nlp_state; 2017 } 2018 2019 static uint32_t 2020 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2021 void *arg, uint32_t evt) 2022 { 2023 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2024 2025 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2026 return ndlp->nlp_state; 2027 } 2028 2029 static uint32_t 2030 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2031 void *arg, uint32_t evt) 2032 { 2033 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2034 2035 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2036 return ndlp->nlp_state; 2037 } 2038 2039 static uint32_t 2040 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2041 void *arg, uint32_t evt) 2042 { 2043 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2044 2045 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2046 return ndlp->nlp_state; 2047 } 2048 2049 static uint32_t 2050 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2051 struct lpfc_nodelist *ndlp, 2052 void *arg, uint32_t evt) 2053 { 2054 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2055 2056 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2057 return ndlp->nlp_state; 2058 } 2059 2060 static uint32_t 2061 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2062 void *arg, uint32_t evt) 2063 { 2064 struct lpfc_hba *phba = vport->phba; 2065 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2066 2067 /* flush the target */ 2068 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 2069 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2070 2071 /* Treat like rcv logo */ 2072 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2073 return ndlp->nlp_state; 2074 } 2075 2076 static uint32_t 2077 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2078 struct lpfc_nodelist *ndlp, 2079 void *arg, 2080 uint32_t evt) 2081 { 2082 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2083 2084 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2085 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2086 spin_lock_irq(shost->host_lock); 2087 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2088 spin_unlock_irq(shost->host_lock); 2089 lpfc_disc_set_adisc(vport, ndlp); 2090 return ndlp->nlp_state; 2091 } 2092 2093 static uint32_t 2094 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2095 void *arg, uint32_t evt) 2096 { 2097 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2098 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2099 2100 /* Ignore PLOGI if we have an outstanding LOGO */ 2101 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2102 return ndlp->nlp_state; 2103 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2104 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2105 spin_lock_irq(shost->host_lock); 2106 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2107 spin_unlock_irq(shost->host_lock); 2108 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2109 /* send PLOGI immediately, move to PLOGI issue state */ 2110 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2111 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2112 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2113 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2114 } 2115 } 2116 return ndlp->nlp_state; 2117 } 2118 2119 static uint32_t 2120 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2121 void *arg, uint32_t evt) 2122 { 2123 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2124 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2125 struct ls_rjt stat; 2126 2127 memset(&stat, 0, sizeof (struct ls_rjt)); 2128 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2129 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2130 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2131 2132 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2133 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2134 spin_lock_irq(shost->host_lock); 2135 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2136 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2137 spin_unlock_irq(shost->host_lock); 2138 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2139 lpfc_issue_els_adisc(vport, ndlp, 0); 2140 } else { 2141 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2142 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2143 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2144 } 2145 } 2146 return ndlp->nlp_state; 2147 } 2148 2149 static uint32_t 2150 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2151 void *arg, uint32_t evt) 2152 { 2153 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2154 2155 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2156 return ndlp->nlp_state; 2157 } 2158 2159 static uint32_t 2160 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2161 void *arg, uint32_t evt) 2162 { 2163 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2164 2165 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2166 /* 2167 * Do not start discovery if discovery is about to start 2168 * or discovery in progress for this node. Starting discovery 2169 * here will affect the counting of discovery threads. 2170 */ 2171 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2172 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2173 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2174 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2175 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2176 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2177 lpfc_issue_els_adisc(vport, ndlp, 0); 2178 } else { 2179 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2180 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2181 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2182 } 2183 } 2184 return ndlp->nlp_state; 2185 } 2186 2187 static uint32_t 2188 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2189 void *arg, uint32_t evt) 2190 { 2191 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2192 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2193 2194 spin_lock_irq(shost->host_lock); 2195 ndlp->nlp_flag |= NLP_LOGO_ACC; 2196 spin_unlock_irq(shost->host_lock); 2197 2198 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2199 2200 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2201 mod_timer(&ndlp->nlp_delayfunc, 2202 jiffies + msecs_to_jiffies(1000 * 1)); 2203 spin_lock_irq(shost->host_lock); 2204 ndlp->nlp_flag |= NLP_DELAY_TMO; 2205 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2206 spin_unlock_irq(shost->host_lock); 2207 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2208 } else { 2209 spin_lock_irq(shost->host_lock); 2210 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2211 spin_unlock_irq(shost->host_lock); 2212 } 2213 return ndlp->nlp_state; 2214 } 2215 2216 static uint32_t 2217 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2218 void *arg, uint32_t evt) 2219 { 2220 struct lpfc_iocbq *cmdiocb, *rspiocb; 2221 IOCB_t *irsp; 2222 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2223 2224 cmdiocb = (struct lpfc_iocbq *) arg; 2225 rspiocb = cmdiocb->context_un.rsp_iocb; 2226 2227 irsp = &rspiocb->iocb; 2228 if (irsp->ulpStatus) { 2229 spin_lock_irq(shost->host_lock); 2230 ndlp->nlp_flag |= NLP_DEFER_RM; 2231 spin_unlock_irq(shost->host_lock); 2232 return NLP_STE_FREED_NODE; 2233 } 2234 return ndlp->nlp_state; 2235 } 2236 2237 static uint32_t 2238 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2239 void *arg, uint32_t evt) 2240 { 2241 struct lpfc_iocbq *cmdiocb, *rspiocb; 2242 IOCB_t *irsp; 2243 2244 cmdiocb = (struct lpfc_iocbq *) arg; 2245 rspiocb = cmdiocb->context_un.rsp_iocb; 2246 2247 irsp = &rspiocb->iocb; 2248 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2249 lpfc_drop_node(vport, ndlp); 2250 return NLP_STE_FREED_NODE; 2251 } 2252 return ndlp->nlp_state; 2253 } 2254 2255 static uint32_t 2256 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2257 void *arg, uint32_t evt) 2258 { 2259 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2260 2261 /* For the fabric port just clear the fc flags. */ 2262 if (ndlp->nlp_DID == Fabric_DID) { 2263 spin_lock_irq(shost->host_lock); 2264 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2265 spin_unlock_irq(shost->host_lock); 2266 } 2267 lpfc_unreg_rpi(vport, ndlp); 2268 return ndlp->nlp_state; 2269 } 2270 2271 static uint32_t 2272 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2273 void *arg, uint32_t evt) 2274 { 2275 struct lpfc_iocbq *cmdiocb, *rspiocb; 2276 IOCB_t *irsp; 2277 2278 cmdiocb = (struct lpfc_iocbq *) arg; 2279 rspiocb = cmdiocb->context_un.rsp_iocb; 2280 2281 irsp = &rspiocb->iocb; 2282 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2283 lpfc_drop_node(vport, ndlp); 2284 return NLP_STE_FREED_NODE; 2285 } 2286 return ndlp->nlp_state; 2287 } 2288 2289 static uint32_t 2290 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2291 struct lpfc_nodelist *ndlp, 2292 void *arg, uint32_t evt) 2293 { 2294 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2295 MAILBOX_t *mb = &pmb->u.mb; 2296 2297 if (!mb->mbxStatus) { 2298 /* SLI4 ports have preallocated logical rpis. */ 2299 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2300 ndlp->nlp_rpi = mb->un.varWords[0]; 2301 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2302 } else { 2303 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2304 lpfc_drop_node(vport, ndlp); 2305 return NLP_STE_FREED_NODE; 2306 } 2307 } 2308 return ndlp->nlp_state; 2309 } 2310 2311 static uint32_t 2312 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2313 void *arg, uint32_t evt) 2314 { 2315 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2316 2317 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2318 spin_lock_irq(shost->host_lock); 2319 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2320 spin_unlock_irq(shost->host_lock); 2321 return ndlp->nlp_state; 2322 } 2323 lpfc_drop_node(vport, ndlp); 2324 return NLP_STE_FREED_NODE; 2325 } 2326 2327 static uint32_t 2328 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2329 void *arg, uint32_t evt) 2330 { 2331 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2332 2333 /* Don't do anything that will mess up processing of the 2334 * previous RSCN. 2335 */ 2336 if (vport->fc_flag & FC_RSCN_DEFERRED) 2337 return ndlp->nlp_state; 2338 2339 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2340 spin_lock_irq(shost->host_lock); 2341 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2342 spin_unlock_irq(shost->host_lock); 2343 return ndlp->nlp_state; 2344 } 2345 2346 2347 /* This next section defines the NPort Discovery State Machine */ 2348 2349 /* There are 4 different double linked lists nodelist entries can reside on. 2350 * The plogi list and adisc list are used when Link Up discovery or RSCN 2351 * processing is needed. Each list holds the nodes that we will send PLOGI 2352 * or ADISC on. These lists will keep track of what nodes will be effected 2353 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2354 * The unmapped_list will contain all nodes that we have successfully logged 2355 * into at the Fibre Channel level. The mapped_list will contain all nodes 2356 * that are mapped FCP targets. 2357 */ 2358 /* 2359 * The bind list is a list of undiscovered (potentially non-existent) nodes 2360 * that we have saved binding information on. This information is used when 2361 * nodes transition from the unmapped to the mapped list. 2362 */ 2363 /* For UNUSED_NODE state, the node has just been allocated . 2364 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2365 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2366 * and put on the unmapped list. For ADISC processing, the node is taken off 2367 * the ADISC list and placed on either the mapped or unmapped list (depending 2368 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2369 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2370 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2371 * node, the node is taken off the unmapped list. The binding list is checked 2372 * for a valid binding, or a binding is automatically assigned. If binding 2373 * assignment is unsuccessful, the node is left on the unmapped list. If 2374 * binding assignment is successful, the associated binding list entry (if 2375 * any) is removed, and the node is placed on the mapped list. 2376 */ 2377 /* 2378 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2379 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2380 * expire, all effected nodes will receive a DEVICE_RM event. 2381 */ 2382 /* 2383 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2384 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2385 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2386 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2387 * we will first process the ADISC list. 32 entries are processed initially and 2388 * ADISC is initited for each one. Completions / Events for each node are 2389 * funnelled thru the state machine. As each node finishes ADISC processing, it 2390 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2391 * waiting, and the ADISC list count is identically 0, then we are done. For 2392 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2393 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2394 * list. 32 entries are processed initially and PLOGI is initited for each one. 2395 * Completions / Events for each node are funnelled thru the state machine. As 2396 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2397 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2398 * indentically 0, then we are done. We have now completed discovery / RSCN 2399 * handling. Upon completion, ALL nodes should be on either the mapped or 2400 * unmapped lists. 2401 */ 2402 2403 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2404 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2405 /* Action routine Event Current State */ 2406 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2407 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2408 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2409 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2410 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2411 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2412 lpfc_disc_illegal, /* CMPL_PLOGI */ 2413 lpfc_disc_illegal, /* CMPL_PRLI */ 2414 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2415 lpfc_disc_illegal, /* CMPL_ADISC */ 2416 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2417 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2418 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2419 2420 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2421 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2422 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2423 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2424 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2425 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2426 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2427 lpfc_disc_illegal, /* CMPL_PRLI */ 2428 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2429 lpfc_disc_illegal, /* CMPL_ADISC */ 2430 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2431 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2432 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2433 2434 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2435 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2436 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2437 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2438 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2439 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2440 lpfc_disc_illegal, /* CMPL_PLOGI */ 2441 lpfc_disc_illegal, /* CMPL_PRLI */ 2442 lpfc_disc_illegal, /* CMPL_LOGO */ 2443 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2444 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2445 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2446 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2447 2448 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2449 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2450 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2451 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2452 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2453 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2454 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2455 lpfc_disc_illegal, /* CMPL_PRLI */ 2456 lpfc_disc_illegal, /* CMPL_LOGO */ 2457 lpfc_disc_illegal, /* CMPL_ADISC */ 2458 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2459 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2460 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2461 2462 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2463 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2464 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2465 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2466 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2467 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2468 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2469 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2470 lpfc_disc_illegal, /* CMPL_LOGO */ 2471 lpfc_disc_illegal, /* CMPL_ADISC */ 2472 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2473 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2474 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2475 2476 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2477 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2478 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2479 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2480 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2481 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2482 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2483 lpfc_disc_illegal, /* CMPL_PRLI */ 2484 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2485 lpfc_disc_illegal, /* CMPL_ADISC */ 2486 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2487 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2488 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2489 2490 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2491 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2492 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2493 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2494 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2495 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2496 lpfc_disc_illegal, /* CMPL_PLOGI */ 2497 lpfc_disc_illegal, /* CMPL_PRLI */ 2498 lpfc_disc_illegal, /* CMPL_LOGO */ 2499 lpfc_disc_illegal, /* CMPL_ADISC */ 2500 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2501 lpfc_disc_illegal, /* DEVICE_RM */ 2502 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2503 2504 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2505 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2506 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2507 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2508 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2509 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2510 lpfc_disc_illegal, /* CMPL_PLOGI */ 2511 lpfc_disc_illegal, /* CMPL_PRLI */ 2512 lpfc_disc_illegal, /* CMPL_LOGO */ 2513 lpfc_disc_illegal, /* CMPL_ADISC */ 2514 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2515 lpfc_disc_illegal, /* DEVICE_RM */ 2516 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2517 2518 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2519 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2520 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2521 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2522 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2523 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2524 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2525 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2526 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2527 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2528 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2529 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2530 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2531 }; 2532 2533 int 2534 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2535 void *arg, uint32_t evt) 2536 { 2537 uint32_t cur_state, rc; 2538 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2539 uint32_t); 2540 uint32_t got_ndlp = 0; 2541 2542 if (lpfc_nlp_get(ndlp)) 2543 got_ndlp = 1; 2544 2545 cur_state = ndlp->nlp_state; 2546 2547 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2548 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2549 "0211 DSM in event x%x on NPort x%x in " 2550 "state %d Data: x%x\n", 2551 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2552 2553 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2554 "DSM in: evt:%d ste:%d did:x%x", 2555 evt, cur_state, ndlp->nlp_DID); 2556 2557 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2558 rc = (func) (vport, ndlp, arg, evt); 2559 2560 /* DSM out state <rc> on NPort <nlp_DID> */ 2561 if (got_ndlp) { 2562 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2563 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2564 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2565 2566 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2567 "DSM out: ste:%d did:x%x flg:x%x", 2568 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2569 /* Decrement the ndlp reference count held for this function */ 2570 lpfc_nlp_put(ndlp); 2571 } else { 2572 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2573 "0213 DSM out state %d on NPort free\n", rc); 2574 2575 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2576 "DSM out: ste:%d did:x%x flg:x%x", 2577 rc, 0, 0); 2578 } 2579 2580 return rc; 2581 } 2582